target
int64 0
1
| func
stringlengths 7
484k
| func_no_comments
stringlengths 7
484k
| idx
int64 1
368k
|
|---|---|---|---|
0 | bool vers_history_generating() const
{
switch (sql_command)
{
case SQLCOM_DELETE:
return !vers_conditions.delete_history;
case SQLCOM_UPDATE:
case SQLCOM_UPDATE_MULTI:
case SQLCOM_DELETE_MULTI:
case SQLCOM_REPLACE:
case SQLCOM_REPLACE_SELECT:
return true;
case SQLCOM_INSERT:
case SQLCOM_INSERT_SELECT:
return duplicates == DUP_UPDATE;
case SQLCOM_LOAD:
return duplicates == DUP_REPLACE;
default:
return false;
}
} | bool vers_history_generating() const
{
switch (sql_command)
{
case SQLCOM_DELETE:
return !vers_conditions.delete_history;
case SQLCOM_UPDATE:
case SQLCOM_UPDATE_MULTI:
case SQLCOM_DELETE_MULTI:
case SQLCOM_REPLACE:
case SQLCOM_REPLACE_SELECT:
return true;
case SQLCOM_INSERT:
case SQLCOM_INSERT_SELECT:
return duplicates == DUP_UPDATE;
case SQLCOM_LOAD:
return duplicates == DUP_REPLACE;
default:
return false;
}
} | 367,494 |
0 | void LEX::relink_hack(st_select_lex *select_lex)
{
if (!select_stack_top) // Statements of the second type
{
if (!select_lex->outer_select() &&
!builtin_select.first_inner_unit())
{
builtin_select.register_unit(select_lex->master_unit(),
&builtin_select.context);
builtin_select.add_statistics(select_lex->master_unit());
}
}
} | void LEX::relink_hack(st_select_lex *select_lex)
{
if (!select_stack_top)
{
if (!select_lex->outer_select() &&
!builtin_select.first_inner_unit())
{
builtin_select.register_unit(select_lex->master_unit(),
&builtin_select.context);
builtin_select.add_statistics(select_lex->master_unit());
}
}
} | 367,495 |
0 | int Lex_input_stream::scan_ident_delimited(THD *thd,
Lex_ident_cli_st *str,
uchar quote_char)
{
CHARSET_INFO *const cs= thd->charset();
uchar c;
DBUG_ASSERT(m_ptr == m_tok_start + 1);
for ( ; ; )
{
if (!(c= yyGet()))
{
/*
End-of-query or straight 0x00 inside a delimited identifier.
Return the quote character, to have the parser fail on syntax error.
*/
m_ptr= (char *) m_tok_start + 1;
if (m_echo)
m_cpp_ptr= (char *) m_cpp_tok_start + 1;
return quote_char;
}
int var_length= my_charlen(cs, get_ptr() - 1, get_end_of_query());
if (var_length == 1)
{
if (c == quote_char)
{
if (yyPeek() != quote_char)
break;
c= yyGet();
continue;
}
}
else if (var_length > 1)
{
skip_binary(var_length - 1);
}
}
str->set_ident_quoted(m_tok_start + 1, yyLength() - 1, true, quote_char);
yyUnget(); // ptr points now after last token char
m_cpp_text_start= m_cpp_tok_start + 1;
m_cpp_text_end= m_cpp_text_start + str->length;
if (c == quote_char)
yySkip(); // Skip end `
next_state= MY_LEX_START;
body_utf8_append(m_cpp_text_start);
// QQQ: shouldn't it add unescaped version ????
body_utf8_append_ident(thd, str, m_cpp_text_end);
return IDENT_QUOTED;
} | int Lex_input_stream::scan_ident_delimited(THD *thd,
Lex_ident_cli_st *str,
uchar quote_char)
{
CHARSET_INFO *const cs= thd->charset();
uchar c;
DBUG_ASSERT(m_ptr == m_tok_start + 1);
for ( ; ; )
{
if (!(c= yyGet()))
{
m_ptr= (char *) m_tok_start + 1;
if (m_echo)
m_cpp_ptr= (char *) m_cpp_tok_start + 1;
return quote_char;
}
int var_length= my_charlen(cs, get_ptr() - 1, get_end_of_query());
if (var_length == 1)
{
if (c == quote_char)
{
if (yyPeek() != quote_char)
break;
c= yyGet();
continue;
}
}
else if (var_length > 1)
{
skip_binary(var_length - 1);
}
}
str->set_ident_quoted(m_tok_start + 1, yyLength() - 1, true, quote_char);
yyUnget();
m_cpp_text_start= m_cpp_tok_start + 1;
m_cpp_text_end= m_cpp_text_start + str->length;
if (c == quote_char)
yySkip();
next_state= MY_LEX_START;
body_utf8_append(m_cpp_text_start);
body_utf8_append_ident(thd, str, m_cpp_text_end);
return IDENT_QUOTED;
} | 367,496 |
0 | init_lex_with_single_table(THD *thd, TABLE *table, LEX *lex)
{
TABLE_LIST *table_list;
Table_ident *table_ident;
SELECT_LEX *select_lex= lex->first_select_lex();
Name_resolution_context *context= &select_lex->context;
/*
We will call the parser to create a part_info struct based on the
partition string stored in the frm file.
We will use a local lex object for this purpose. However we also
need to set the Name_resolution_object for this lex object. We
do this by using add_table_to_list where we add the table that
we're working with to the Name_resolution_context.
*/
thd->lex= lex;
lex_start(thd);
context->init();
if (unlikely((!(table_ident= new Table_ident(thd,
&table->s->db,
&table->s->table_name,
TRUE)))) ||
(unlikely(!(table_list= select_lex->add_table_to_list(thd,
table_ident,
NULL,
0)))))
return TRUE;
context->resolve_in_table_list_only(table_list);
lex->use_only_table_context= TRUE;
select_lex->cur_pos_in_select_list= UNDEF_POS;
table->map= 1; //To ensure correct calculation of const item
table_list->table= table;
table_list->cacheable_table= false;
lex->create_last_non_select_table= table_list;
return FALSE;
} | init_lex_with_single_table(THD *thd, TABLE *table, LEX *lex)
{
TABLE_LIST *table_list;
Table_ident *table_ident;
SELECT_LEX *select_lex= lex->first_select_lex();
Name_resolution_context *context= &select_lex->context;
thd->lex= lex;
lex_start(thd);
context->init();
if (unlikely((!(table_ident= new Table_ident(thd,
&table->s->db,
&table->s->table_name,
TRUE)))) ||
(unlikely(!(table_list= select_lex->add_table_to_list(thd,
table_ident,
NULL,
0)))))
return TRUE;
context->resolve_in_table_list_only(table_list);
lex->use_only_table_context= TRUE;
select_lex->cur_pos_in_select_list= UNDEF_POS;
table->map= 1;
table_list->table= table;
table_list->cacheable_table= false;
lex->create_last_non_select_table= table_list;
return FALSE;
} | 367,497 |
0 | SELECT_LEX *parser_current_outer_select()
{
return select_stack_top - 1 == select_stack_outer_barrier ?
0 : select_stack[select_stack_top - 2];
} | SELECT_LEX *parser_current_outer_select()
{
return select_stack_top - 1 == select_stack_outer_barrier ?
0 : select_stack[select_stack_top - 2];
} | 367,498 |
0 | inline bool is_stmt_row_injection() const {
return binlog_stmt_flags & (1U << BINLOG_STMT_TYPE_ROW_INJECTION);
} | inline bool is_stmt_row_injection() const {
return binlog_stmt_flags & (1U << BINLOG_STMT_TYPE_ROW_INJECTION);
} | 367,499 |
0 | bool LEX::maybe_start_compound_statement(THD *thd)
{
if (!sphead)
{
if (!make_sp_head(thd, NULL, &sp_handler_procedure, DEFAULT_AGGREGATE))
return true;
sphead->set_suid(SP_IS_NOT_SUID);
sphead->set_body_start(thd, thd->m_parser_state->m_lip.get_cpp_tok_start());
}
return false;
} | bool LEX::maybe_start_compound_statement(THD *thd)
{
if (!sphead)
{
if (!make_sp_head(thd, NULL, &sp_handler_procedure, DEFAULT_AGGREGATE))
return true;
sphead->set_suid(SP_IS_NOT_SUID);
sphead->set_body_start(thd, thd->m_parser_state->m_lip.get_cpp_tok_start());
}
return false;
} | 367,500 |
0 | void tls1_free(SSL *s)
{
OPENSSL_free(s->tlsext_session_ticket);
ssl3_free(s);
} | void tls1_free(SSL *s)
{
OPENSSL_free(s->tlsext_session_ticket);
ssl3_free(s);
} | 367,506 |
0 | void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op)
{
const unsigned char *sigalgs;
size_t i, sigalgslen;
int have_rsa = 0, have_dsa = 0, have_ecdsa = 0;
/*
* Now go through all signature algorithms seeing if we support any for
* RSA, DSA, ECDSA. Do this for all versions not just TLS 1.2. To keep
* down calls to security callback only check if we have to.
*/
sigalgslen = tls12_get_psigalgs(s, 1, &sigalgs);
for (i = 0; i < sigalgslen; i += 2, sigalgs += 2) {
switch (sigalgs[1]) {
#ifndef OPENSSL_NO_RSA
case TLSEXT_signature_rsa:
if (!have_rsa && tls12_sigalg_allowed(s, op, sigalgs))
have_rsa = 1;
break;
#endif
#ifndef OPENSSL_NO_DSA
case TLSEXT_signature_dsa:
if (!have_dsa && tls12_sigalg_allowed(s, op, sigalgs))
have_dsa = 1;
break;
#endif
#ifndef OPENSSL_NO_EC
case TLSEXT_signature_ecdsa:
if (!have_ecdsa && tls12_sigalg_allowed(s, op, sigalgs))
have_ecdsa = 1;
break;
#endif
}
}
if (!have_rsa)
*pmask_a |= SSL_aRSA;
if (!have_dsa)
*pmask_a |= SSL_aDSS;
if (!have_ecdsa)
*pmask_a |= SSL_aECDSA;
} | void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op)
{
const unsigned char *sigalgs;
size_t i, sigalgslen;
int have_rsa = 0, have_dsa = 0, have_ecdsa = 0;
sigalgslen = tls12_get_psigalgs(s, 1, &sigalgs);
for (i = 0; i < sigalgslen; i += 2, sigalgs += 2) {
switch (sigalgs[1]) {
#ifndef OPENSSL_NO_RSA
case TLSEXT_signature_rsa:
if (!have_rsa && tls12_sigalg_allowed(s, op, sigalgs))
have_rsa = 1;
break;
#endif
#ifndef OPENSSL_NO_DSA
case TLSEXT_signature_dsa:
if (!have_dsa && tls12_sigalg_allowed(s, op, sigalgs))
have_dsa = 1;
break;
#endif
#ifndef OPENSSL_NO_EC
case TLSEXT_signature_ecdsa:
if (!have_ecdsa && tls12_sigalg_allowed(s, op, sigalgs))
have_ecdsa = 1;
break;
#endif
}
}
if (!have_rsa)
*pmask_a |= SSL_aRSA;
if (!have_dsa)
*pmask_a |= SSL_aDSS;
if (!have_ecdsa)
*pmask_a |= SSL_aECDSA;
} | 367,507 |
0 | unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf,
unsigned char *limit, int *al)
{
int extdatalen = 0;
unsigned char *orig = buf;
unsigned char *ret = buf;
#ifndef OPENSSL_NO_EC
/* See if we support any ECC ciphersuites */
int using_ecc = 0;
if (s->version >= TLS1_VERSION || SSL_IS_DTLS(s)) {
int i;
unsigned long alg_k, alg_a;
STACK_OF(SSL_CIPHER) *cipher_stack = SSL_get_ciphers(s);
for (i = 0; i < sk_SSL_CIPHER_num(cipher_stack); i++) {
const SSL_CIPHER *c = sk_SSL_CIPHER_value(cipher_stack, i);
alg_k = c->algorithm_mkey;
alg_a = c->algorithm_auth;
if ((alg_k & (SSL_kECDHE | SSL_kECDHEPSK))
|| (alg_a & SSL_aECDSA)) {
using_ecc = 1;
break;
}
}
}
#endif
ret += 2;
if (ret >= limit)
return NULL; /* this really never occurs, but ... */
/* Add RI if renegotiating */
if (s->renegotiate) {
int el;
if (!ssl_add_clienthello_renegotiate_ext(s, 0, &el, 0)) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
if (CHECKLEN(ret, 4 + el, limit))
return NULL;
s2n(TLSEXT_TYPE_renegotiate, ret);
s2n(el, ret);
if (!ssl_add_clienthello_renegotiate_ext(s, ret, &el, el)) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
ret += el;
}
/* Only add RI for SSLv3 */
if (s->client_version == SSL3_VERSION)
goto done;
if (s->tlsext_hostname != NULL) {
/* Add TLS extension servername to the Client Hello message */
size_t size_str;
/*-
* check for enough space.
* 4 for the servername type and extension length
* 2 for servernamelist length
* 1 for the hostname type
* 2 for hostname length
* + hostname length
*/
size_str = strlen(s->tlsext_hostname);
if (CHECKLEN(ret, 9 + size_str, limit))
return NULL;
/* extension type and length */
s2n(TLSEXT_TYPE_server_name, ret);
s2n(size_str + 5, ret);
/* length of servername list */
s2n(size_str + 3, ret);
/* hostname type, length and hostname */
*(ret++) = (unsigned char)TLSEXT_NAMETYPE_host_name;
s2n(size_str, ret);
memcpy(ret, s->tlsext_hostname, size_str);
ret += size_str;
}
#ifndef OPENSSL_NO_SRP
/* Add SRP username if there is one */
if (s->srp_ctx.login != NULL) { /* Add TLS extension SRP username to the
* Client Hello message */
size_t login_len = strlen(s->srp_ctx.login);
if (login_len > 255 || login_len == 0) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
/*-
* check for enough space.
* 4 for the srp type type and extension length
* 1 for the srp user identity
* + srp user identity length
*/
if (CHECKLEN(ret, 5 + login_len, limit))
return NULL;
/* fill in the extension */
s2n(TLSEXT_TYPE_srp, ret);
s2n(login_len + 1, ret);
(*ret++) = (unsigned char)login_len;
memcpy(ret, s->srp_ctx.login, login_len);
ret += login_len;
}
#endif
#ifndef OPENSSL_NO_EC
if (using_ecc) {
/*
* Add TLS extension ECPointFormats to the ClientHello message
*/
const unsigned char *pcurves, *pformats;
size_t num_curves, num_formats, curves_list_len;
size_t i;
unsigned char *etmp;
tls1_get_formatlist(s, &pformats, &num_formats);
if (num_formats > 255) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
/*-
* check for enough space.
* 4 bytes for the ec point formats type and extension length
* 1 byte for the length of the formats
* + formats length
*/
if (CHECKLEN(ret, 5 + num_formats, limit))
return NULL;
s2n(TLSEXT_TYPE_ec_point_formats, ret);
/* The point format list has 1-byte length. */
s2n(num_formats + 1, ret);
*(ret++) = (unsigned char)num_formats;
memcpy(ret, pformats, num_formats);
ret += num_formats;
/*
* Add TLS extension EllipticCurves to the ClientHello message
*/
pcurves = s->tlsext_ellipticcurvelist;
if (!tls1_get_curvelist(s, 0, &pcurves, &num_curves))
return NULL;
if (num_curves > 65532 / 2) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
/*-
* check for enough space.
* 4 bytes for the ec curves type and extension length
* 2 bytes for the curve list length
* + curve list length
*/
if (CHECKLEN(ret, 6 + (num_curves * 2), limit))
return NULL;
s2n(TLSEXT_TYPE_elliptic_curves, ret);
etmp = ret + 4;
/* Copy curve ID if supported */
for (i = 0; i < num_curves; i++, pcurves += 2) {
if (tls_curve_allowed(s, pcurves, SSL_SECOP_CURVE_SUPPORTED)) {
*etmp++ = pcurves[0];
*etmp++ = pcurves[1];
}
}
curves_list_len = etmp - ret - 4;
s2n(curves_list_len + 2, ret);
s2n(curves_list_len, ret);
ret += curves_list_len;
}
#endif /* OPENSSL_NO_EC */
if (tls_use_ticket(s)) {
size_t ticklen;
if (!s->new_session && s->session && s->session->tlsext_tick)
ticklen = s->session->tlsext_ticklen;
else if (s->session && s->tlsext_session_ticket &&
s->tlsext_session_ticket->data) {
ticklen = s->tlsext_session_ticket->length;
s->session->tlsext_tick = OPENSSL_malloc(ticklen);
if (s->session->tlsext_tick == NULL)
return NULL;
memcpy(s->session->tlsext_tick,
s->tlsext_session_ticket->data, ticklen);
s->session->tlsext_ticklen = ticklen;
} else
ticklen = 0;
if (ticklen == 0 && s->tlsext_session_ticket &&
s->tlsext_session_ticket->data == NULL)
goto skip_ext;
/*
* Check for enough room 2 for extension type, 2 for len rest for
* ticket
*/
if (CHECKLEN(ret, 4 + ticklen, limit))
return NULL;
s2n(TLSEXT_TYPE_session_ticket, ret);
s2n(ticklen, ret);
if (ticklen > 0) {
memcpy(ret, s->session->tlsext_tick, ticklen);
ret += ticklen;
}
}
skip_ext:
if (SSL_CLIENT_USE_SIGALGS(s)) {
size_t salglen;
const unsigned char *salg;
unsigned char *etmp;
salglen = tls12_get_psigalgs(s, 1, &salg);
/*-
* check for enough space.
* 4 bytes for the sigalgs type and extension length
* 2 bytes for the sigalg list length
* + sigalg list length
*/
if (CHECKLEN(ret, salglen + 6, limit))
return NULL;
s2n(TLSEXT_TYPE_signature_algorithms, ret);
etmp = ret;
/* Skip over lengths for now */
ret += 4;
salglen = tls12_copy_sigalgs(s, ret, salg, salglen);
/* Fill in lengths */
s2n(salglen + 2, etmp);
s2n(salglen, etmp);
ret += salglen;
}
#ifndef OPENSSL_NO_OCSP
if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp) {
int i;
size_t extlen, idlen;
int lentmp;
OCSP_RESPID *id;
idlen = 0;
for (i = 0; i < sk_OCSP_RESPID_num(s->tlsext_ocsp_ids); i++) {
id = sk_OCSP_RESPID_value(s->tlsext_ocsp_ids, i);
lentmp = i2d_OCSP_RESPID(id, NULL);
if (lentmp <= 0)
return NULL;
idlen += (size_t)lentmp + 2;
}
if (s->tlsext_ocsp_exts) {
lentmp = i2d_X509_EXTENSIONS(s->tlsext_ocsp_exts, NULL);
if (lentmp < 0)
return NULL;
extlen = (size_t)lentmp;
} else
extlen = 0;
if (extlen + idlen > 0xFFF0)
return NULL;
/*
* 2 bytes for status request type
* 2 bytes for status request len
* 1 byte for OCSP request type
* 2 bytes for length of ids
* 2 bytes for length of extensions
* + length of ids
* + length of extensions
*/
if (CHECKLEN(ret, 9 + idlen + extlen, limit))
return NULL;
s2n(TLSEXT_TYPE_status_request, ret);
s2n(extlen + idlen + 5, ret);
*(ret++) = TLSEXT_STATUSTYPE_ocsp;
s2n(idlen, ret);
for (i = 0; i < sk_OCSP_RESPID_num(s->tlsext_ocsp_ids); i++) {
/* save position of id len */
unsigned char *q = ret;
id = sk_OCSP_RESPID_value(s->tlsext_ocsp_ids, i);
/* skip over id len */
ret += 2;
lentmp = i2d_OCSP_RESPID(id, &ret);
/* write id len */
s2n(lentmp, q);
}
s2n(extlen, ret);
if (extlen > 0)
i2d_X509_EXTENSIONS(s->tlsext_ocsp_exts, &ret);
}
#endif
#ifndef OPENSSL_NO_HEARTBEATS
if (SSL_IS_DTLS(s)) {
/* Add Heartbeat extension */
/*-
* check for enough space.
* 4 bytes for the heartbeat ext type and extension length
* 1 byte for the mode
*/
if (CHECKLEN(ret, 5, limit))
return NULL;
s2n(TLSEXT_TYPE_heartbeat, ret);
s2n(1, ret);
/*-
* Set mode:
* 1: peer may send requests
* 2: peer not allowed to send requests
*/
if (s->tlsext_heartbeat & SSL_DTLSEXT_HB_DONT_RECV_REQUESTS)
*(ret++) = SSL_DTLSEXT_HB_DONT_SEND_REQUESTS;
else
*(ret++) = SSL_DTLSEXT_HB_ENABLED;
}
#endif
#ifndef OPENSSL_NO_NEXTPROTONEG
if (s->ctx->next_proto_select_cb && !s->s3->tmp.finish_md_len) {
/*
* The client advertises an empty extension to indicate its support
* for Next Protocol Negotiation
*/
/*-
* check for enough space.
* 4 bytes for the NPN ext type and extension length
*/
if (CHECKLEN(ret, 4, limit))
return NULL;
s2n(TLSEXT_TYPE_next_proto_neg, ret);
s2n(0, ret);
}
#endif
/*
* finish_md_len is non-zero during a renegotiation, so
* this avoids sending ALPN during the renegotiation
* (see longer comment below)
*/
if (s->alpn_client_proto_list && !s->s3->tmp.finish_md_len) {
/*-
* check for enough space.
* 4 bytes for the ALPN type and extension length
* 2 bytes for the ALPN protocol list length
* + ALPN protocol list length
*/
if (CHECKLEN(ret, 6 + s->alpn_client_proto_list_len, limit))
return NULL;
s2n(TLSEXT_TYPE_application_layer_protocol_negotiation, ret);
s2n(2 + s->alpn_client_proto_list_len, ret);
s2n(s->alpn_client_proto_list_len, ret);
memcpy(ret, s->alpn_client_proto_list, s->alpn_client_proto_list_len);
ret += s->alpn_client_proto_list_len;
s->s3->alpn_sent = 1;
}
#ifndef OPENSSL_NO_SRTP
if (SSL_IS_DTLS(s) && SSL_get_srtp_profiles(s)) {
int el;
/* Returns 0 on success!! */
if (ssl_add_clienthello_use_srtp_ext(s, 0, &el, 0)) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
/*-
* check for enough space.
* 4 bytes for the SRTP type and extension length
* + SRTP profiles length
*/
if (CHECKLEN(ret, 4 + el, limit))
return NULL;
s2n(TLSEXT_TYPE_use_srtp, ret);
s2n(el, ret);
if (ssl_add_clienthello_use_srtp_ext(s, ret, &el, el)) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
ret += el;
}
#endif
custom_ext_init(&s->cert->cli_ext);
/* Add custom TLS Extensions to ClientHello */
if (!custom_ext_add(s, 0, &ret, limit, al))
return NULL;
/*
* In 1.1.0 before 1.1.0c we negotiated EtM with DTLS, then just
* silently failed to actually do it. It is fixed in 1.1.1 but to
* ease the transition especially from 1.1.0b to 1.1.0c, we just
* disable it in 1.1.0.
*/
if (!SSL_IS_DTLS(s)) {
/*-
* check for enough space.
* 4 bytes for the ETM type and extension length
*/
if (CHECKLEN(ret, 4, limit))
return NULL;
s2n(TLSEXT_TYPE_encrypt_then_mac, ret);
s2n(0, ret);
}
#ifndef OPENSSL_NO_CT
if (s->ct_validation_callback != NULL) {
/*-
* check for enough space.
* 4 bytes for the SCT type and extension length
*/
if (CHECKLEN(ret, 4, limit))
return NULL;
s2n(TLSEXT_TYPE_signed_certificate_timestamp, ret);
s2n(0, ret);
}
#endif
/*-
* check for enough space.
* 4 bytes for the EMS type and extension length
*/
if (CHECKLEN(ret, 4, limit))
return NULL;
s2n(TLSEXT_TYPE_extended_master_secret, ret);
s2n(0, ret);
/*
* Add padding to workaround bugs in F5 terminators. See
* https://tools.ietf.org/html/draft-agl-tls-padding-03 NB: because this
* code works out the length of all existing extensions it MUST always
* appear last.
*/
if (s->options & SSL_OP_TLSEXT_PADDING) {
int hlen = ret - (unsigned char *)s->init_buf->data;
if (hlen > 0xff && hlen < 0x200) {
hlen = 0x200 - hlen;
if (hlen >= 4)
hlen -= 4;
else
hlen = 0;
/*-
* check for enough space. Strictly speaking we know we've already
* got enough space because to get here the message size is < 0x200,
* but we know that we've allocated far more than that in the buffer
* - but for consistency and robustness we're going to check anyway.
*
* 4 bytes for the padding type and extension length
* + padding length
*/
if (CHECKLEN(ret, 4 + hlen, limit))
return NULL;
s2n(TLSEXT_TYPE_padding, ret);
s2n(hlen, ret);
memset(ret, 0, hlen);
ret += hlen;
}
}
done:
if ((extdatalen = ret - orig - 2) == 0)
return orig;
s2n(extdatalen, orig);
return ret;
} | unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf,
unsigned char *limit, int *al)
{
int extdatalen = 0;
unsigned char *orig = buf;
unsigned char *ret = buf;
#ifndef OPENSSL_NO_EC
int using_ecc = 0;
if (s->version >= TLS1_VERSION || SSL_IS_DTLS(s)) {
int i;
unsigned long alg_k, alg_a;
STACK_OF(SSL_CIPHER) *cipher_stack = SSL_get_ciphers(s);
for (i = 0; i < sk_SSL_CIPHER_num(cipher_stack); i++) {
const SSL_CIPHER *c = sk_SSL_CIPHER_value(cipher_stack, i);
alg_k = c->algorithm_mkey;
alg_a = c->algorithm_auth;
if ((alg_k & (SSL_kECDHE | SSL_kECDHEPSK))
|| (alg_a & SSL_aECDSA)) {
using_ecc = 1;
break;
}
}
}
#endif
ret += 2;
if (ret >= limit)
return NULL;
if (s->renegotiate) {
int el;
if (!ssl_add_clienthello_renegotiate_ext(s, 0, &el, 0)) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
if (CHECKLEN(ret, 4 + el, limit))
return NULL;
s2n(TLSEXT_TYPE_renegotiate, ret);
s2n(el, ret);
if (!ssl_add_clienthello_renegotiate_ext(s, ret, &el, el)) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
ret += el;
}
if (s->client_version == SSL3_VERSION)
goto done;
if (s->tlsext_hostname != NULL) {
size_t size_str;
size_str = strlen(s->tlsext_hostname);
if (CHECKLEN(ret, 9 + size_str, limit))
return NULL;
s2n(TLSEXT_TYPE_server_name, ret);
s2n(size_str + 5, ret);
s2n(size_str + 3, ret);
*(ret++) = (unsigned char)TLSEXT_NAMETYPE_host_name;
s2n(size_str, ret);
memcpy(ret, s->tlsext_hostname, size_str);
ret += size_str;
}
#ifndef OPENSSL_NO_SRP
if (s->srp_ctx.login != NULL) {
size_t login_len = strlen(s->srp_ctx.login);
if (login_len > 255 || login_len == 0) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
if (CHECKLEN(ret, 5 + login_len, limit))
return NULL;
s2n(TLSEXT_TYPE_srp, ret);
s2n(login_len + 1, ret);
(*ret++) = (unsigned char)login_len;
memcpy(ret, s->srp_ctx.login, login_len);
ret += login_len;
}
#endif
#ifndef OPENSSL_NO_EC
if (using_ecc) {
const unsigned char *pcurves, *pformats;
size_t num_curves, num_formats, curves_list_len;
size_t i;
unsigned char *etmp;
tls1_get_formatlist(s, &pformats, &num_formats);
if (num_formats > 255) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
if (CHECKLEN(ret, 5 + num_formats, limit))
return NULL;
s2n(TLSEXT_TYPE_ec_point_formats, ret);
s2n(num_formats + 1, ret);
*(ret++) = (unsigned char)num_formats;
memcpy(ret, pformats, num_formats);
ret += num_formats;
pcurves = s->tlsext_ellipticcurvelist;
if (!tls1_get_curvelist(s, 0, &pcurves, &num_curves))
return NULL;
if (num_curves > 65532 / 2) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
if (CHECKLEN(ret, 6 + (num_curves * 2), limit))
return NULL;
s2n(TLSEXT_TYPE_elliptic_curves, ret);
etmp = ret + 4;
for (i = 0; i < num_curves; i++, pcurves += 2) {
if (tls_curve_allowed(s, pcurves, SSL_SECOP_CURVE_SUPPORTED)) {
*etmp++ = pcurves[0];
*etmp++ = pcurves[1];
}
}
curves_list_len = etmp - ret - 4;
s2n(curves_list_len + 2, ret);
s2n(curves_list_len, ret);
ret += curves_list_len;
}
#endif
if (tls_use_ticket(s)) {
size_t ticklen;
if (!s->new_session && s->session && s->session->tlsext_tick)
ticklen = s->session->tlsext_ticklen;
else if (s->session && s->tlsext_session_ticket &&
s->tlsext_session_ticket->data) {
ticklen = s->tlsext_session_ticket->length;
s->session->tlsext_tick = OPENSSL_malloc(ticklen);
if (s->session->tlsext_tick == NULL)
return NULL;
memcpy(s->session->tlsext_tick,
s->tlsext_session_ticket->data, ticklen);
s->session->tlsext_ticklen = ticklen;
} else
ticklen = 0;
if (ticklen == 0 && s->tlsext_session_ticket &&
s->tlsext_session_ticket->data == NULL)
goto skip_ext;
if (CHECKLEN(ret, 4 + ticklen, limit))
return NULL;
s2n(TLSEXT_TYPE_session_ticket, ret);
s2n(ticklen, ret);
if (ticklen > 0) {
memcpy(ret, s->session->tlsext_tick, ticklen);
ret += ticklen;
}
}
skip_ext:
if (SSL_CLIENT_USE_SIGALGS(s)) {
size_t salglen;
const unsigned char *salg;
unsigned char *etmp;
salglen = tls12_get_psigalgs(s, 1, &salg);
if (CHECKLEN(ret, salglen + 6, limit))
return NULL;
s2n(TLSEXT_TYPE_signature_algorithms, ret);
etmp = ret;
ret += 4;
salglen = tls12_copy_sigalgs(s, ret, salg, salglen);
s2n(salglen + 2, etmp);
s2n(salglen, etmp);
ret += salglen;
}
#ifndef OPENSSL_NO_OCSP
if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp) {
int i;
size_t extlen, idlen;
int lentmp;
OCSP_RESPID *id;
idlen = 0;
for (i = 0; i < sk_OCSP_RESPID_num(s->tlsext_ocsp_ids); i++) {
id = sk_OCSP_RESPID_value(s->tlsext_ocsp_ids, i);
lentmp = i2d_OCSP_RESPID(id, NULL);
if (lentmp <= 0)
return NULL;
idlen += (size_t)lentmp + 2;
}
if (s->tlsext_ocsp_exts) {
lentmp = i2d_X509_EXTENSIONS(s->tlsext_ocsp_exts, NULL);
if (lentmp < 0)
return NULL;
extlen = (size_t)lentmp;
} else
extlen = 0;
if (extlen + idlen > 0xFFF0)
return NULL;
if (CHECKLEN(ret, 9 + idlen + extlen, limit))
return NULL;
s2n(TLSEXT_TYPE_status_request, ret);
s2n(extlen + idlen + 5, ret);
*(ret++) = TLSEXT_STATUSTYPE_ocsp;
s2n(idlen, ret);
for (i = 0; i < sk_OCSP_RESPID_num(s->tlsext_ocsp_ids); i++) {
unsigned char *q = ret;
id = sk_OCSP_RESPID_value(s->tlsext_ocsp_ids, i);
ret += 2;
lentmp = i2d_OCSP_RESPID(id, &ret);
s2n(lentmp, q);
}
s2n(extlen, ret);
if (extlen > 0)
i2d_X509_EXTENSIONS(s->tlsext_ocsp_exts, &ret);
}
#endif
#ifndef OPENSSL_NO_HEARTBEATS
if (SSL_IS_DTLS(s)) {
if (CHECKLEN(ret, 5, limit))
return NULL;
s2n(TLSEXT_TYPE_heartbeat, ret);
s2n(1, ret);
if (s->tlsext_heartbeat & SSL_DTLSEXT_HB_DONT_RECV_REQUESTS)
*(ret++) = SSL_DTLSEXT_HB_DONT_SEND_REQUESTS;
else
*(ret++) = SSL_DTLSEXT_HB_ENABLED;
}
#endif
#ifndef OPENSSL_NO_NEXTPROTONEG
if (s->ctx->next_proto_select_cb && !s->s3->tmp.finish_md_len) {
if (CHECKLEN(ret, 4, limit))
return NULL;
s2n(TLSEXT_TYPE_next_proto_neg, ret);
s2n(0, ret);
}
#endif
if (s->alpn_client_proto_list && !s->s3->tmp.finish_md_len) {
if (CHECKLEN(ret, 6 + s->alpn_client_proto_list_len, limit))
return NULL;
s2n(TLSEXT_TYPE_application_layer_protocol_negotiation, ret);
s2n(2 + s->alpn_client_proto_list_len, ret);
s2n(s->alpn_client_proto_list_len, ret);
memcpy(ret, s->alpn_client_proto_list, s->alpn_client_proto_list_len);
ret += s->alpn_client_proto_list_len;
s->s3->alpn_sent = 1;
}
#ifndef OPENSSL_NO_SRTP
if (SSL_IS_DTLS(s) && SSL_get_srtp_profiles(s)) {
int el;
if (ssl_add_clienthello_use_srtp_ext(s, 0, &el, 0)) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
if (CHECKLEN(ret, 4 + el, limit))
return NULL;
s2n(TLSEXT_TYPE_use_srtp, ret);
s2n(el, ret);
if (ssl_add_clienthello_use_srtp_ext(s, ret, &el, el)) {
SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
return NULL;
}
ret += el;
}
#endif
custom_ext_init(&s->cert->cli_ext);
if (!custom_ext_add(s, 0, &ret, limit, al))
return NULL;
if (!SSL_IS_DTLS(s)) {
if (CHECKLEN(ret, 4, limit))
return NULL;
s2n(TLSEXT_TYPE_encrypt_then_mac, ret);
s2n(0, ret);
}
#ifndef OPENSSL_NO_CT
if (s->ct_validation_callback != NULL) {
if (CHECKLEN(ret, 4, limit))
return NULL;
s2n(TLSEXT_TYPE_signed_certificate_timestamp, ret);
s2n(0, ret);
}
#endif
if (CHECKLEN(ret, 4, limit))
return NULL;
s2n(TLSEXT_TYPE_extended_master_secret, ret);
s2n(0, ret);
if (s->options & SSL_OP_TLSEXT_PADDING) {
int hlen = ret - (unsigned char *)s->init_buf->data;
if (hlen > 0xff && hlen < 0x200) {
hlen = 0x200 - hlen;
if (hlen >= 4)
hlen -= 4;
else
hlen = 0;
if (CHECKLEN(ret, 4 + hlen, limit))
return NULL;
s2n(TLSEXT_TYPE_padding, ret);
s2n(hlen, ret);
memset(ret, 0, hlen);
ret += hlen;
}
}
done:
if ((extdatalen = ret - orig - 2) == 0)
return orig;
s2n(extdatalen, orig);
return ret;
} | 367,508 |
0 | int tls1_cbc_remove_padding(const SSL *s,
SSL3_RECORD *rec,
unsigned block_size, unsigned mac_size)
{
unsigned padding_length, good, to_check, i;
const unsigned overhead = 1 /* padding length byte */ + mac_size;
/* Check if version requires explicit IV */
if (SSL_USE_EXPLICIT_IV(s)) {
/*
* These lengths are all public so we can test them in non-constant
* time.
*/
if (overhead + block_size > rec->length)
return 0;
/* We can now safely skip explicit IV */
rec->data += block_size;
rec->input += block_size;
rec->length -= block_size;
rec->orig_len -= block_size;
} else if (overhead > rec->length)
return 0;
padding_length = rec->data[rec->length - 1];
if (EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(s->enc_read_ctx)) &
EVP_CIPH_FLAG_AEAD_CIPHER) {
/* padding is already verified */
rec->length -= padding_length + 1;
return 1;
}
good = constant_time_ge(rec->length, overhead + padding_length);
/*
* The padding consists of a length byte at the end of the record and
* then that many bytes of padding, all with the same value as the length
* byte. Thus, with the length byte included, there are i+1 bytes of
* padding. We can't check just |padding_length+1| bytes because that
* leaks decrypted information. Therefore we always have to check the
* maximum amount of padding possible. (Again, the length of the record
* is public information so we can use it.)
*/
to_check = 256; /* maximum amount of padding, inc length byte. */
if (to_check > rec->length)
to_check = rec->length;
for (i = 0; i < to_check; i++) {
unsigned char mask = constant_time_ge_8(padding_length, i);
unsigned char b = rec->data[rec->length - 1 - i];
/*
* The final |padding_length+1| bytes should all have the value
* |padding_length|. Therefore the XOR should be zero.
*/
good &= ~(mask & (padding_length ^ b));
}
/*
* If any of the final |padding_length+1| bytes had the wrong value, one
* or more of the lower eight bits of |good| will be cleared.
*/
good = constant_time_eq(0xff, good & 0xff);
rec->length -= good & (padding_length + 1);
return constant_time_select_int(good, 1, -1);
} | int tls1_cbc_remove_padding(const SSL *s,
SSL3_RECORD *rec,
unsigned block_size, unsigned mac_size)
{
unsigned padding_length, good, to_check, i;
const unsigned overhead = 1 + mac_size;
if (SSL_USE_EXPLICIT_IV(s)) {
if (overhead + block_size > rec->length)
return 0;
rec->data += block_size;
rec->input += block_size;
rec->length -= block_size;
rec->orig_len -= block_size;
} else if (overhead > rec->length)
return 0;
padding_length = rec->data[rec->length - 1];
if (EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(s->enc_read_ctx)) &
EVP_CIPH_FLAG_AEAD_CIPHER) {
rec->length -= padding_length + 1;
return 1;
}
good = constant_time_ge(rec->length, overhead + padding_length);
to_check = 256;
if (to_check > rec->length)
to_check = rec->length;
for (i = 0; i < to_check; i++) {
unsigned char mask = constant_time_ge_8(padding_length, i);
unsigned char b = rec->data[rec->length - 1 - i];
good &= ~(mask & (padding_length ^ b));
}
good = constant_time_eq(0xff, good & 0xff);
rec->length -= good & (padding_length + 1);
return constant_time_select_int(good, 1, -1);
} | 367,509 |
0 | int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
int len)
{
if (s->session->flags & SSL_SESS_FLAG_EXTMS) {
unsigned char hash[EVP_MAX_MD_SIZE * 2];
int hashlen;
/*
* Digest cached records keeping record buffer (if present): this wont
* affect client auth because we're freezing the buffer at the same
* point (after client key exchange and before certificate verify)
*/
if (!ssl3_digest_cached_records(s, 1))
return -1;
hashlen = ssl_handshake_hash(s, hash, sizeof(hash));
#ifdef SSL_DEBUG
fprintf(stderr, "Handshake hashes:\n");
BIO_dump_fp(stderr, (char *)hash, hashlen);
#endif
tls1_PRF(s,
TLS_MD_EXTENDED_MASTER_SECRET_CONST,
TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE,
hash, hashlen,
NULL, 0,
NULL, 0,
NULL, 0, p, len, s->session->master_key,
SSL3_MASTER_SECRET_SIZE);
OPENSSL_cleanse(hash, hashlen);
} else {
tls1_PRF(s,
TLS_MD_MASTER_SECRET_CONST,
TLS_MD_MASTER_SECRET_CONST_SIZE,
s->s3->client_random, SSL3_RANDOM_SIZE,
NULL, 0,
s->s3->server_random, SSL3_RANDOM_SIZE,
NULL, 0, p, len, s->session->master_key,
SSL3_MASTER_SECRET_SIZE);
}
#ifdef SSL_DEBUG
fprintf(stderr, "Premaster Secret:\n");
BIO_dump_fp(stderr, (char *)p, len);
fprintf(stderr, "Client Random:\n");
BIO_dump_fp(stderr, (char *)s->s3->client_random, SSL3_RANDOM_SIZE);
fprintf(stderr, "Server Random:\n");
BIO_dump_fp(stderr, (char *)s->s3->server_random, SSL3_RANDOM_SIZE);
fprintf(stderr, "Master Secret:\n");
BIO_dump_fp(stderr, (char *)s->session->master_key,
SSL3_MASTER_SECRET_SIZE);
#endif
#ifdef OPENSSL_SSL_TRACE_CRYPTO
if (s->msg_callback) {
s->msg_callback(2, s->version, TLS1_RT_CRYPTO_PREMASTER,
p, len, s, s->msg_callback_arg);
s->msg_callback(2, s->version, TLS1_RT_CRYPTO_CLIENT_RANDOM,
s->s3->client_random, SSL3_RANDOM_SIZE,
s, s->msg_callback_arg);
s->msg_callback(2, s->version, TLS1_RT_CRYPTO_SERVER_RANDOM,
s->s3->server_random, SSL3_RANDOM_SIZE,
s, s->msg_callback_arg);
s->msg_callback(2, s->version, TLS1_RT_CRYPTO_MASTER,
s->session->master_key,
SSL3_MASTER_SECRET_SIZE, s, s->msg_callback_arg);
}
#endif
return (SSL3_MASTER_SECRET_SIZE);
} | int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
int len)
{
if (s->session->flags & SSL_SESS_FLAG_EXTMS) {
unsigned char hash[EVP_MAX_MD_SIZE * 2];
int hashlen;
if (!ssl3_digest_cached_records(s, 1))
return -1;
hashlen = ssl_handshake_hash(s, hash, sizeof(hash));
#ifdef SSL_DEBUG
fprintf(stderr, "Handshake hashes:\n");
BIO_dump_fp(stderr, (char *)hash, hashlen);
#endif
tls1_PRF(s,
TLS_MD_EXTENDED_MASTER_SECRET_CONST,
TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE,
hash, hashlen,
NULL, 0,
NULL, 0,
NULL, 0, p, len, s->session->master_key,
SSL3_MASTER_SECRET_SIZE);
OPENSSL_cleanse(hash, hashlen);
} else {
tls1_PRF(s,
TLS_MD_MASTER_SECRET_CONST,
TLS_MD_MASTER_SECRET_CONST_SIZE,
s->s3->client_random, SSL3_RANDOM_SIZE,
NULL, 0,
s->s3->server_random, SSL3_RANDOM_SIZE,
NULL, 0, p, len, s->session->master_key,
SSL3_MASTER_SECRET_SIZE);
}
#ifdef SSL_DEBUG
fprintf(stderr, "Premaster Secret:\n");
BIO_dump_fp(stderr, (char *)p, len);
fprintf(stderr, "Client Random:\n");
BIO_dump_fp(stderr, (char *)s->s3->client_random, SSL3_RANDOM_SIZE);
fprintf(stderr, "Server Random:\n");
BIO_dump_fp(stderr, (char *)s->s3->server_random, SSL3_RANDOM_SIZE);
fprintf(stderr, "Master Secret:\n");
BIO_dump_fp(stderr, (char *)s->session->master_key,
SSL3_MASTER_SECRET_SIZE);
#endif
#ifdef OPENSSL_SSL_TRACE_CRYPTO
if (s->msg_callback) {
s->msg_callback(2, s->version, TLS1_RT_CRYPTO_PREMASTER,
p, len, s, s->msg_callback_arg);
s->msg_callback(2, s->version, TLS1_RT_CRYPTO_CLIENT_RANDOM,
s->s3->client_random, SSL3_RANDOM_SIZE,
s, s->msg_callback_arg);
s->msg_callback(2, s->version, TLS1_RT_CRYPTO_SERVER_RANDOM,
s->s3->server_random, SSL3_RANDOM_SIZE,
s, s->msg_callback_arg);
s->msg_callback(2, s->version, TLS1_RT_CRYPTO_MASTER,
s->session->master_key,
SSL3_MASTER_SECRET_SIZE, s, s->msg_callback_arg);
}
#endif
return (SSL3_MASTER_SECRET_SIZE);
} | 367,510 |
0 | int tls1_mac(SSL *ssl, SSL3_RECORD *rec, unsigned char *md, int send)
{
unsigned char *seq;
EVP_MD_CTX *hash;
size_t md_size;
int i;
EVP_MD_CTX *hmac = NULL, *mac_ctx;
unsigned char header[13];
int stream_mac = (send ? (ssl->mac_flags & SSL_MAC_FLAG_WRITE_MAC_STREAM)
: (ssl->mac_flags & SSL_MAC_FLAG_READ_MAC_STREAM));
int t;
if (send) {
seq = RECORD_LAYER_get_write_sequence(&ssl->rlayer);
hash = ssl->write_hash;
} else {
seq = RECORD_LAYER_get_read_sequence(&ssl->rlayer);
hash = ssl->read_hash;
}
t = EVP_MD_CTX_size(hash);
OPENSSL_assert(t >= 0);
md_size = t;
/* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */
if (stream_mac) {
mac_ctx = hash;
} else {
hmac = EVP_MD_CTX_new();
if (hmac == NULL || !EVP_MD_CTX_copy(hmac, hash))
return -1;
mac_ctx = hmac;
}
if (SSL_IS_DTLS(ssl)) {
unsigned char dtlsseq[8], *p = dtlsseq;
s2n(send ? DTLS_RECORD_LAYER_get_w_epoch(&ssl->rlayer) :
DTLS_RECORD_LAYER_get_r_epoch(&ssl->rlayer), p);
memcpy(p, &seq[2], 6);
memcpy(header, dtlsseq, 8);
} else
memcpy(header, seq, 8);
header[8] = rec->type;
header[9] = (unsigned char)(ssl->version >> 8);
header[10] = (unsigned char)(ssl->version);
header[11] = (rec->length) >> 8;
header[12] = (rec->length) & 0xff;
if (!send && !SSL_READ_ETM(ssl) &&
EVP_CIPHER_CTX_mode(ssl->enc_read_ctx) == EVP_CIPH_CBC_MODE &&
ssl3_cbc_record_digest_supported(mac_ctx)) {
/*
* This is a CBC-encrypted record. We must avoid leaking any
* timing-side channel information about how many blocks of data we
* are hashing because that gives an attacker a timing-oracle.
*/
/* Final param == not SSLv3 */
if (ssl3_cbc_digest_record(mac_ctx,
md, &md_size,
header, rec->input,
rec->length + md_size, rec->orig_len,
ssl->s3->read_mac_secret,
ssl->s3->read_mac_secret_size, 0) <= 0) {
EVP_MD_CTX_free(hmac);
return -1;
}
} else {
if (EVP_DigestSignUpdate(mac_ctx, header, sizeof(header)) <= 0
|| EVP_DigestSignUpdate(mac_ctx, rec->input, rec->length) <= 0
|| EVP_DigestSignFinal(mac_ctx, md, &md_size) <= 0) {
EVP_MD_CTX_free(hmac);
return -1;
}
if (!send && !SSL_READ_ETM(ssl) && FIPS_mode())
if (!tls_fips_digest_extra(ssl->enc_read_ctx,
mac_ctx, rec->input,
rec->length, rec->orig_len)) {
EVP_MD_CTX_free(hmac);
return -1;
}
}
EVP_MD_CTX_free(hmac);
#ifdef SSL_DEBUG
fprintf(stderr, "seq=");
{
int z;
for (z = 0; z < 8; z++)
fprintf(stderr, "%02X ", seq[z]);
fprintf(stderr, "\n");
}
fprintf(stderr, "rec=");
{
unsigned int z;
for (z = 0; z < rec->length; z++)
fprintf(stderr, "%02X ", rec->data[z]);
fprintf(stderr, "\n");
}
#endif
if (!SSL_IS_DTLS(ssl)) {
for (i = 7; i >= 0; i--) {
++seq[i];
if (seq[i] != 0)
break;
}
}
#ifdef SSL_DEBUG
{
unsigned int z;
for (z = 0; z < md_size; z++)
fprintf(stderr, "%02X ", md[z]);
fprintf(stderr, "\n");
}
#endif
return (md_size);
} | int tls1_mac(SSL *ssl, SSL3_RECORD *rec, unsigned char *md, int send)
{
unsigned char *seq;
EVP_MD_CTX *hash;
size_t md_size;
int i;
EVP_MD_CTX *hmac = NULL, *mac_ctx;
unsigned char header[13];
int stream_mac = (send ? (ssl->mac_flags & SSL_MAC_FLAG_WRITE_MAC_STREAM)
: (ssl->mac_flags & SSL_MAC_FLAG_READ_MAC_STREAM));
int t;
if (send) {
seq = RECORD_LAYER_get_write_sequence(&ssl->rlayer);
hash = ssl->write_hash;
} else {
seq = RECORD_LAYER_get_read_sequence(&ssl->rlayer);
hash = ssl->read_hash;
}
t = EVP_MD_CTX_size(hash);
OPENSSL_assert(t >= 0);
md_size = t;
if (stream_mac) {
mac_ctx = hash;
} else {
hmac = EVP_MD_CTX_new();
if (hmac == NULL || !EVP_MD_CTX_copy(hmac, hash))
return -1;
mac_ctx = hmac;
}
if (SSL_IS_DTLS(ssl)) {
unsigned char dtlsseq[8], *p = dtlsseq;
s2n(send ? DTLS_RECORD_LAYER_get_w_epoch(&ssl->rlayer) :
DTLS_RECORD_LAYER_get_r_epoch(&ssl->rlayer), p);
memcpy(p, &seq[2], 6);
memcpy(header, dtlsseq, 8);
} else
memcpy(header, seq, 8);
header[8] = rec->type;
header[9] = (unsigned char)(ssl->version >> 8);
header[10] = (unsigned char)(ssl->version);
header[11] = (rec->length) >> 8;
header[12] = (rec->length) & 0xff;
if (!send && !SSL_READ_ETM(ssl) &&
EVP_CIPHER_CTX_mode(ssl->enc_read_ctx) == EVP_CIPH_CBC_MODE &&
ssl3_cbc_record_digest_supported(mac_ctx)) {
if (ssl3_cbc_digest_record(mac_ctx,
md, &md_size,
header, rec->input,
rec->length + md_size, rec->orig_len,
ssl->s3->read_mac_secret,
ssl->s3->read_mac_secret_size, 0) <= 0) {
EVP_MD_CTX_free(hmac);
return -1;
}
} else {
if (EVP_DigestSignUpdate(mac_ctx, header, sizeof(header)) <= 0
|| EVP_DigestSignUpdate(mac_ctx, rec->input, rec->length) <= 0
|| EVP_DigestSignFinal(mac_ctx, md, &md_size) <= 0) {
EVP_MD_CTX_free(hmac);
return -1;
}
if (!send && !SSL_READ_ETM(ssl) && FIPS_mode())
if (!tls_fips_digest_extra(ssl->enc_read_ctx,
mac_ctx, rec->input,
rec->length, rec->orig_len)) {
EVP_MD_CTX_free(hmac);
return -1;
}
}
EVP_MD_CTX_free(hmac);
#ifdef SSL_DEBUG
fprintf(stderr, "seq=");
{
int z;
for (z = 0; z < 8; z++)
fprintf(stderr, "%02X ", seq[z]);
fprintf(stderr, "\n");
}
fprintf(stderr, "rec=");
{
unsigned int z;
for (z = 0; z < rec->length; z++)
fprintf(stderr, "%02X ", rec->data[z]);
fprintf(stderr, "\n");
}
#endif
if (!SSL_IS_DTLS(ssl)) {
for (i = 7; i >= 0; i--) {
++seq[i];
if (seq[i] != 0)
break;
}
}
#ifdef SSL_DEBUG
{
unsigned int z;
for (z = 0; z < md_size; z++)
fprintf(stderr, "%02X ", md[z]);
fprintf(stderr, "\n");
}
#endif
return (md_size);
} | 367,512 |
0 | int ssl_check_clienthello_tlsext_late(SSL *s, int *al)
{
s->tlsext_status_expected = 0;
/*
* If status request then ask callback what to do. Note: this must be
* called after servername callbacks in case the certificate has changed,
* and must be called after the cipher has been chosen because this may
* influence which certificate is sent
*/
if ((s->tlsext_status_type != -1) && s->ctx && s->ctx->tlsext_status_cb) {
int ret;
CERT_PKEY *certpkey;
certpkey = ssl_get_server_send_pkey(s);
/* If no certificate can't return certificate status */
if (certpkey != NULL) {
/*
* Set current certificate to one we will use so SSL_get_certificate
* et al can pick it up.
*/
s->cert->key = certpkey;
ret = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
switch (ret) {
/* We don't want to send a status request response */
case SSL_TLSEXT_ERR_NOACK:
s->tlsext_status_expected = 0;
break;
/* status request response should be sent */
case SSL_TLSEXT_ERR_OK:
if (s->tlsext_ocsp_resp)
s->tlsext_status_expected = 1;
break;
/* something bad happened */
case SSL_TLSEXT_ERR_ALERT_FATAL:
default:
*al = SSL_AD_INTERNAL_ERROR;
return 0;
}
}
}
if (!tls1_alpn_handle_client_hello_late(s, al)) {
return 0;
}
return 1;
} | int ssl_check_clienthello_tlsext_late(SSL *s, int *al)
{
s->tlsext_status_expected = 0;
if ((s->tlsext_status_type != -1) && s->ctx && s->ctx->tlsext_status_cb) {
int ret;
CERT_PKEY *certpkey;
certpkey = ssl_get_server_send_pkey(s);
if (certpkey != NULL) {
s->cert->key = certpkey;
ret = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
switch (ret) {
case SSL_TLSEXT_ERR_NOACK:
s->tlsext_status_expected = 0;
break;
case SSL_TLSEXT_ERR_OK:
if (s->tlsext_ocsp_resp)
s->tlsext_status_expected = 1;
break;
case SSL_TLSEXT_ERR_ALERT_FATAL:
default:
*al = SSL_AD_INTERNAL_ERROR;
return 0;
}
}
}
if (!tls1_alpn_handle_client_hello_late(s, al)) {
return 0;
}
return 1;
} | 367,514 |
0 | static int tls1_generate_key_block(SSL *s, unsigned char *km, int num)
{
int ret;
ret = tls1_PRF(s,
TLS_MD_KEY_EXPANSION_CONST,
TLS_MD_KEY_EXPANSION_CONST_SIZE, s->s3->server_random,
SSL3_RANDOM_SIZE, s->s3->client_random, SSL3_RANDOM_SIZE,
NULL, 0, NULL, 0, s->session->master_key,
s->session->master_key_length, km, num);
return ret;
} | static int tls1_generate_key_block(SSL *s, unsigned char *km, int num)
{
int ret;
ret = tls1_PRF(s,
TLS_MD_KEY_EXPANSION_CONST,
TLS_MD_KEY_EXPANSION_CONST_SIZE, s->s3->server_random,
SSL3_RANDOM_SIZE, s->s3->client_random, SSL3_RANDOM_SIZE,
NULL, 0, NULL, 0, s->session->master_key,
s->session->master_key_length, km, num);
return ret;
} | 367,519 |
0 | void tls1_set_cert_validity(SSL *s)
{
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_RSA_ENC);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_RSA_SIGN);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_DSA_SIGN);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_ECC);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_GOST01);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_GOST12_256);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_GOST12_512);
} | void tls1_set_cert_validity(SSL *s)
{
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_RSA_ENC);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_RSA_SIGN);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_DSA_SIGN);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_ECC);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_GOST01);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_GOST12_256);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_GOST12_512);
} | 367,520 |
0 | int ssl3_write_bytes(SSL *s, int type, const void *buf_, int len)
{
const unsigned char *buf = buf_;
int tot;
unsigned int n, split_send_fragment, maxpipes;
#if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
unsigned int max_send_fragment, nw;
unsigned int u_len = (unsigned int)len;
#endif
SSL3_BUFFER *wb = &s->rlayer.wbuf[0];
int i;
if (len < 0) {
SSLerr(SSL_F_SSL3_WRITE_BYTES, SSL_R_SSL_NEGATIVE_LENGTH);
return -1;
}
s->rwstate = SSL_NOTHING;
tot = s->rlayer.wnum;
/*
* ensure that if we end up with a smaller value of data to write out
* than the the original len from a write which didn't complete for
* non-blocking I/O and also somehow ended up avoiding the check for
* this in ssl3_write_pending/SSL_R_BAD_WRITE_RETRY as it must never be
* possible to end up with (len-tot) as a large number that will then
* promptly send beyond the end of the users buffer ... so we trap and
* report the error in a way the user will notice
*/
if ((unsigned int)len < s->rlayer.wnum) {
SSLerr(SSL_F_SSL3_WRITE_BYTES, SSL_R_BAD_LENGTH);
return -1;
}
s->rlayer.wnum = 0;
if (SSL_in_init(s) && !ossl_statem_get_in_handshake(s)) {
i = s->handshake_func(s);
if (i < 0)
return (i);
if (i == 0) {
SSLerr(SSL_F_SSL3_WRITE_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
return -1;
}
}
/*
* first check if there is a SSL3_BUFFER still being written out. This
* will happen with non blocking IO
*/
if (wb->left != 0) {
i = ssl3_write_pending(s, type, &buf[tot], s->rlayer.wpend_tot);
if (i <= 0) {
/* XXX should we ssl3_release_write_buffer if i<0? */
s->rlayer.wnum = tot;
return i;
}
tot += i; /* this might be last fragment */
}
#if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
/*
* Depending on platform multi-block can deliver several *times*
* better performance. Downside is that it has to allocate
* jumbo buffer to accommodate up to 8 records, but the
* compromise is considered worthy.
*/
if (type == SSL3_RT_APPLICATION_DATA &&
u_len >= 4 * (max_send_fragment = s->max_send_fragment) &&
s->compress == NULL && s->msg_callback == NULL &&
!SSL_WRITE_ETM(s) && SSL_USE_EXPLICIT_IV(s) &&
EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(s->enc_write_ctx)) &
EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK) {
unsigned char aad[13];
EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM mb_param;
int packlen;
/* minimize address aliasing conflicts */
if ((max_send_fragment & 0xfff) == 0)
max_send_fragment -= 512;
if (tot == 0 || wb->buf == NULL) { /* allocate jumbo buffer */
ssl3_release_write_buffer(s);
packlen = EVP_CIPHER_CTX_ctrl(s->enc_write_ctx,
EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE,
max_send_fragment, NULL);
if (u_len >= 8 * max_send_fragment)
packlen *= 8;
else
packlen *= 4;
if (!ssl3_setup_write_buffer(s, 1, packlen)) {
SSLerr(SSL_F_SSL3_WRITE_BYTES, ERR_R_MALLOC_FAILURE);
return -1;
}
} else if (tot == len) { /* done? */
/* free jumbo buffer */
ssl3_release_write_buffer(s);
return tot;
}
n = (len - tot);
for (;;) {
if (n < 4 * max_send_fragment) {
/* free jumbo buffer */
ssl3_release_write_buffer(s);
break;
}
if (s->s3->alert_dispatch) {
i = s->method->ssl_dispatch_alert(s);
if (i <= 0) {
s->rlayer.wnum = tot;
return i;
}
}
if (n >= 8 * max_send_fragment)
nw = max_send_fragment * (mb_param.interleave = 8);
else
nw = max_send_fragment * (mb_param.interleave = 4);
memcpy(aad, s->rlayer.write_sequence, 8);
aad[8] = type;
aad[9] = (unsigned char)(s->version >> 8);
aad[10] = (unsigned char)(s->version);
aad[11] = 0;
aad[12] = 0;
mb_param.out = NULL;
mb_param.inp = aad;
mb_param.len = nw;
packlen = EVP_CIPHER_CTX_ctrl(s->enc_write_ctx,
EVP_CTRL_TLS1_1_MULTIBLOCK_AAD,
sizeof(mb_param), &mb_param);
if (packlen <= 0 || packlen > (int)wb->len) { /* never happens */
/* free jumbo buffer */
ssl3_release_write_buffer(s);
break;
}
mb_param.out = wb->buf;
mb_param.inp = &buf[tot];
mb_param.len = nw;
if (EVP_CIPHER_CTX_ctrl(s->enc_write_ctx,
EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT,
sizeof(mb_param), &mb_param) <= 0)
return -1;
s->rlayer.write_sequence[7] += mb_param.interleave;
if (s->rlayer.write_sequence[7] < mb_param.interleave) {
int j = 6;
while (j >= 0 && (++s->rlayer.write_sequence[j--]) == 0) ;
}
wb->offset = 0;
wb->left = packlen;
s->rlayer.wpend_tot = nw;
s->rlayer.wpend_buf = &buf[tot];
s->rlayer.wpend_type = type;
s->rlayer.wpend_ret = nw;
i = ssl3_write_pending(s, type, &buf[tot], nw);
if (i <= 0) {
if (i < 0 && (!s->wbio || !BIO_should_retry(s->wbio))) {
/* free jumbo buffer */
ssl3_release_write_buffer(s);
}
s->rlayer.wnum = tot;
return i;
}
if (i == (int)n) {
/* free jumbo buffer */
ssl3_release_write_buffer(s);
return tot + i;
}
n -= i;
tot += i;
}
} else
#endif
if (tot == len) { /* done? */
if (s->mode & SSL_MODE_RELEASE_BUFFERS && !SSL_IS_DTLS(s))
ssl3_release_write_buffer(s);
return tot;
}
n = (len - tot);
split_send_fragment = s->split_send_fragment;
/*
* If max_pipelines is 0 then this means "undefined" and we default to
* 1 pipeline. Similarly if the cipher does not support pipelined
* processing then we also only use 1 pipeline, or if we're not using
* explicit IVs
*/
maxpipes = s->max_pipelines;
if (maxpipes > SSL_MAX_PIPELINES) {
/*
* We should have prevented this when we set max_pipelines so we
* shouldn't get here
*/
SSLerr(SSL_F_SSL3_WRITE_BYTES, ERR_R_INTERNAL_ERROR);
return -1;
}
if (maxpipes == 0
|| s->enc_write_ctx == NULL
|| !(EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(s->enc_write_ctx))
& EVP_CIPH_FLAG_PIPELINE)
|| !SSL_USE_EXPLICIT_IV(s))
maxpipes = 1;
if (s->max_send_fragment == 0 || split_send_fragment > s->max_send_fragment
|| split_send_fragment == 0) {
/*
* We should have prevented this when we set the split and max send
* fragments so we shouldn't get here
*/
SSLerr(SSL_F_SSL3_WRITE_BYTES, ERR_R_INTERNAL_ERROR);
return -1;
}
for (;;) {
unsigned int pipelens[SSL_MAX_PIPELINES], tmppipelen, remain;
unsigned int numpipes, j;
if (n == 0)
numpipes = 1;
else
numpipes = ((n - 1) / split_send_fragment) + 1;
if (numpipes > maxpipes)
numpipes = maxpipes;
if (n / numpipes >= s->max_send_fragment) {
/*
* We have enough data to completely fill all available
* pipelines
*/
for (j = 0; j < numpipes; j++) {
pipelens[j] = s->max_send_fragment;
}
} else {
/* We can partially fill all available pipelines */
tmppipelen = n / numpipes;
remain = n % numpipes;
for (j = 0; j < numpipes; j++) {
pipelens[j] = tmppipelen;
if (j < remain)
pipelens[j]++;
}
}
i = do_ssl3_write(s, type, &(buf[tot]), pipelens, numpipes, 0);
if (i <= 0) {
/* XXX should we ssl3_release_write_buffer if i<0? */
s->rlayer.wnum = tot;
return i;
}
if ((i == (int)n) ||
(type == SSL3_RT_APPLICATION_DATA &&
(s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE))) {
/*
* next chunk of data should get another prepended empty fragment
* in ciphersuites with known-IV weakness:
*/
s->s3->empty_fragment_done = 0;
if ((i == (int)n) && s->mode & SSL_MODE_RELEASE_BUFFERS &&
!SSL_IS_DTLS(s))
ssl3_release_write_buffer(s);
return tot + i;
}
n -= i;
tot += i;
}
} | int ssl3_write_bytes(SSL *s, int type, const void *buf_, int len)
{
const unsigned char *buf = buf_;
int tot;
unsigned int n, split_send_fragment, maxpipes;
#if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
unsigned int max_send_fragment, nw;
unsigned int u_len = (unsigned int)len;
#endif
SSL3_BUFFER *wb = &s->rlayer.wbuf[0];
int i;
if (len < 0) {
SSLerr(SSL_F_SSL3_WRITE_BYTES, SSL_R_SSL_NEGATIVE_LENGTH);
return -1;
}
s->rwstate = SSL_NOTHING;
tot = s->rlayer.wnum;
if ((unsigned int)len < s->rlayer.wnum) {
SSLerr(SSL_F_SSL3_WRITE_BYTES, SSL_R_BAD_LENGTH);
return -1;
}
s->rlayer.wnum = 0;
if (SSL_in_init(s) && !ossl_statem_get_in_handshake(s)) {
i = s->handshake_func(s);
if (i < 0)
return (i);
if (i == 0) {
SSLerr(SSL_F_SSL3_WRITE_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
return -1;
}
}
if (wb->left != 0) {
i = ssl3_write_pending(s, type, &buf[tot], s->rlayer.wpend_tot);
if (i <= 0) {
s->rlayer.wnum = tot;
return i;
}
tot += i;
}
#if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
if (type == SSL3_RT_APPLICATION_DATA &&
u_len >= 4 * (max_send_fragment = s->max_send_fragment) &&
s->compress == NULL && s->msg_callback == NULL &&
!SSL_WRITE_ETM(s) && SSL_USE_EXPLICIT_IV(s) &&
EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(s->enc_write_ctx)) &
EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK) {
unsigned char aad[13];
EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM mb_param;
int packlen;
if ((max_send_fragment & 0xfff) == 0)
max_send_fragment -= 512;
if (tot == 0 || wb->buf == NULL) {
ssl3_release_write_buffer(s);
packlen = EVP_CIPHER_CTX_ctrl(s->enc_write_ctx,
EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE,
max_send_fragment, NULL);
if (u_len >= 8 * max_send_fragment)
packlen *= 8;
else
packlen *= 4;
if (!ssl3_setup_write_buffer(s, 1, packlen)) {
SSLerr(SSL_F_SSL3_WRITE_BYTES, ERR_R_MALLOC_FAILURE);
return -1;
}
} else if (tot == len) {
ssl3_release_write_buffer(s);
return tot;
}
n = (len - tot);
for (;;) {
if (n < 4 * max_send_fragment) {
ssl3_release_write_buffer(s);
break;
}
if (s->s3->alert_dispatch) {
i = s->method->ssl_dispatch_alert(s);
if (i <= 0) {
s->rlayer.wnum = tot;
return i;
}
}
if (n >= 8 * max_send_fragment)
nw = max_send_fragment * (mb_param.interleave = 8);
else
nw = max_send_fragment * (mb_param.interleave = 4);
memcpy(aad, s->rlayer.write_sequence, 8);
aad[8] = type;
aad[9] = (unsigned char)(s->version >> 8);
aad[10] = (unsigned char)(s->version);
aad[11] = 0;
aad[12] = 0;
mb_param.out = NULL;
mb_param.inp = aad;
mb_param.len = nw;
packlen = EVP_CIPHER_CTX_ctrl(s->enc_write_ctx,
EVP_CTRL_TLS1_1_MULTIBLOCK_AAD,
sizeof(mb_param), &mb_param);
if (packlen <= 0 || packlen > (int)wb->len) {
ssl3_release_write_buffer(s);
break;
}
mb_param.out = wb->buf;
mb_param.inp = &buf[tot];
mb_param.len = nw;
if (EVP_CIPHER_CTX_ctrl(s->enc_write_ctx,
EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT,
sizeof(mb_param), &mb_param) <= 0)
return -1;
s->rlayer.write_sequence[7] += mb_param.interleave;
if (s->rlayer.write_sequence[7] < mb_param.interleave) {
int j = 6;
while (j >= 0 && (++s->rlayer.write_sequence[j--]) == 0) ;
}
wb->offset = 0;
wb->left = packlen;
s->rlayer.wpend_tot = nw;
s->rlayer.wpend_buf = &buf[tot];
s->rlayer.wpend_type = type;
s->rlayer.wpend_ret = nw;
i = ssl3_write_pending(s, type, &buf[tot], nw);
if (i <= 0) {
if (i < 0 && (!s->wbio || !BIO_should_retry(s->wbio))) {
ssl3_release_write_buffer(s);
}
s->rlayer.wnum = tot;
return i;
}
if (i == (int)n) {
ssl3_release_write_buffer(s);
return tot + i;
}
n -= i;
tot += i;
}
} else
#endif
if (tot == len) {
if (s->mode & SSL_MODE_RELEASE_BUFFERS && !SSL_IS_DTLS(s))
ssl3_release_write_buffer(s);
return tot;
}
n = (len - tot);
split_send_fragment = s->split_send_fragment;
maxpipes = s->max_pipelines;
if (maxpipes > SSL_MAX_PIPELINES) {
SSLerr(SSL_F_SSL3_WRITE_BYTES, ERR_R_INTERNAL_ERROR);
return -1;
}
if (maxpipes == 0
|| s->enc_write_ctx == NULL
|| !(EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(s->enc_write_ctx))
& EVP_CIPH_FLAG_PIPELINE)
|| !SSL_USE_EXPLICIT_IV(s))
maxpipes = 1;
if (s->max_send_fragment == 0 || split_send_fragment > s->max_send_fragment
|| split_send_fragment == 0) {
SSLerr(SSL_F_SSL3_WRITE_BYTES, ERR_R_INTERNAL_ERROR);
return -1;
}
for (;;) {
unsigned int pipelens[SSL_MAX_PIPELINES], tmppipelen, remain;
unsigned int numpipes, j;
if (n == 0)
numpipes = 1;
else
numpipes = ((n - 1) / split_send_fragment) + 1;
if (numpipes > maxpipes)
numpipes = maxpipes;
if (n / numpipes >= s->max_send_fragment) {
for (j = 0; j < numpipes; j++) {
pipelens[j] = s->max_send_fragment;
}
} else {
tmppipelen = n / numpipes;
remain = n % numpipes;
for (j = 0; j < numpipes; j++) {
pipelens[j] = tmppipelen;
if (j < remain)
pipelens[j]++;
}
}
i = do_ssl3_write(s, type, &(buf[tot]), pipelens, numpipes, 0);
if (i <= 0) {
s->rlayer.wnum = tot;
return i;
}
if ((i == (int)n) ||
(type == SSL3_RT_APPLICATION_DATA &&
(s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE))) {
s->s3->empty_fragment_done = 0;
if ((i == (int)n) && s->mode & SSL_MODE_RELEASE_BUFFERS &&
!SSL_IS_DTLS(s))
ssl3_release_write_buffer(s);
return tot + i;
}
n -= i;
tot += i;
}
} | 367,522 |
0 | void ssl_set_client_disabled(SSL *s)
{
s->s3->tmp.mask_a = 0;
s->s3->tmp.mask_k = 0;
ssl_set_sig_mask(&s->s3->tmp.mask_a, s, SSL_SECOP_SIGALG_MASK);
ssl_get_client_min_max_version(s, &s->s3->tmp.min_ver, &s->s3->tmp.max_ver);
#ifndef OPENSSL_NO_PSK
/* with PSK there must be client callback set */
if (!s->psk_client_callback) {
s->s3->tmp.mask_a |= SSL_aPSK;
s->s3->tmp.mask_k |= SSL_PSK;
}
#endif /* OPENSSL_NO_PSK */
#ifndef OPENSSL_NO_SRP
if (!(s->srp_ctx.srp_Mask & SSL_kSRP)) {
s->s3->tmp.mask_a |= SSL_aSRP;
s->s3->tmp.mask_k |= SSL_kSRP;
}
#endif
} | void ssl_set_client_disabled(SSL *s)
{
s->s3->tmp.mask_a = 0;
s->s3->tmp.mask_k = 0;
ssl_set_sig_mask(&s->s3->tmp.mask_a, s, SSL_SECOP_SIGALG_MASK);
ssl_get_client_min_max_version(s, &s->s3->tmp.min_ver, &s->s3->tmp.max_ver);
#ifndef OPENSSL_NO_PSK
if (!s->psk_client_callback) {
s->s3->tmp.mask_a |= SSL_aPSK;
s->s3->tmp.mask_k |= SSL_PSK;
}
#endif
#ifndef OPENSSL_NO_SRP
if (!(s->srp_ctx.srp_Mask & SSL_kSRP)) {
s->s3->tmp.mask_a |= SSL_aSRP;
s->s3->tmp.mask_k |= SSL_kSRP;
}
#endif
} | 367,523 |
0 | void SSL3_RECORD_release(SSL3_RECORD *r, unsigned int num_recs)
{
unsigned int i;
for (i = 0; i < num_recs; i++) {
OPENSSL_free(r[i].comp);
r[i].comp = NULL;
}
} | void SSL3_RECORD_release(SSL3_RECORD *r, unsigned int num_recs)
{
unsigned int i;
for (i = 0; i < num_recs; i++) {
OPENSSL_free(r[i].comp);
r[i].comp = NULL;
}
} | 367,524 |
0 | static int ssl_check_clienthello_tlsext_early(SSL *s)
{
int ret = SSL_TLSEXT_ERR_NOACK;
int al = SSL_AD_UNRECOGNIZED_NAME;
#ifndef OPENSSL_NO_EC
/*
* The handling of the ECPointFormats extension is done elsewhere, namely
* in ssl3_choose_cipher in s3_lib.c.
*/
/*
* The handling of the EllipticCurves extension is done elsewhere, namely
* in ssl3_choose_cipher in s3_lib.c.
*/
#endif
if (s->ctx != NULL && s->ctx->tlsext_servername_callback != 0)
ret =
s->ctx->tlsext_servername_callback(s, &al,
s->ctx->tlsext_servername_arg);
else if (s->session_ctx != NULL
&& s->session_ctx->tlsext_servername_callback != 0)
ret =
s->session_ctx->tlsext_servername_callback(s, &al,
s->
session_ctx->tlsext_servername_arg);
switch (ret) {
case SSL_TLSEXT_ERR_ALERT_FATAL:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
return -1;
case SSL_TLSEXT_ERR_ALERT_WARNING:
ssl3_send_alert(s, SSL3_AL_WARNING, al);
return 1;
case SSL_TLSEXT_ERR_NOACK:
s->servername_done = 0;
default:
return 1;
}
} | static int ssl_check_clienthello_tlsext_early(SSL *s)
{
int ret = SSL_TLSEXT_ERR_NOACK;
int al = SSL_AD_UNRECOGNIZED_NAME;
#ifndef OPENSSL_NO_EC
#endif
if (s->ctx != NULL && s->ctx->tlsext_servername_callback != 0)
ret =
s->ctx->tlsext_servername_callback(s, &al,
s->ctx->tlsext_servername_arg);
else if (s->session_ctx != NULL
&& s->session_ctx->tlsext_servername_callback != 0)
ret =
s->session_ctx->tlsext_servername_callback(s, &al,
s->
session_ctx->tlsext_servername_arg);
switch (ret) {
case SSL_TLSEXT_ERR_ALERT_FATAL:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
return -1;
case SSL_TLSEXT_ERR_ALERT_WARNING:
ssl3_send_alert(s, SSL3_AL_WARNING, al);
return 1;
case SSL_TLSEXT_ERR_NOACK:
s->servername_done = 0;
default:
return 1;
}
} | 367,525 |
0 | int tls1_change_cipher_state(SSL *s, int which)
{
unsigned char *p, *mac_secret;
unsigned char tmp1[EVP_MAX_KEY_LENGTH];
unsigned char tmp2[EVP_MAX_KEY_LENGTH];
unsigned char iv1[EVP_MAX_IV_LENGTH * 2];
unsigned char iv2[EVP_MAX_IV_LENGTH * 2];
unsigned char *ms, *key, *iv;
EVP_CIPHER_CTX *dd;
const EVP_CIPHER *c;
#ifndef OPENSSL_NO_COMP
const SSL_COMP *comp;
#endif
const EVP_MD *m;
int mac_type;
int *mac_secret_size;
EVP_MD_CTX *mac_ctx;
EVP_PKEY *mac_key;
int n, i, j, k, cl;
int reuse_dd = 0;
c = s->s3->tmp.new_sym_enc;
m = s->s3->tmp.new_hash;
mac_type = s->s3->tmp.new_mac_pkey_type;
#ifndef OPENSSL_NO_COMP
comp = s->s3->tmp.new_compression;
#endif
if (which & SSL3_CC_READ) {
if (s->tlsext_use_etm)
s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
else
s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
s->mac_flags |= SSL_MAC_FLAG_READ_MAC_STREAM;
else
s->mac_flags &= ~SSL_MAC_FLAG_READ_MAC_STREAM;
if (s->enc_read_ctx != NULL)
reuse_dd = 1;
else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL)
goto err;
else
/*
* make sure it's initialised in case we exit later with an error
*/
EVP_CIPHER_CTX_reset(s->enc_read_ctx);
dd = s->enc_read_ctx;
mac_ctx = ssl_replace_hash(&s->read_hash, NULL);
if (mac_ctx == NULL)
goto err;
#ifndef OPENSSL_NO_COMP
COMP_CTX_free(s->expand);
s->expand = NULL;
if (comp != NULL) {
s->expand = COMP_CTX_new(comp->method);
if (s->expand == NULL) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,
SSL_R_COMPRESSION_LIBRARY_ERROR);
goto err2;
}
}
#endif
/*
* this is done by dtls1_reset_seq_numbers for DTLS
*/
if (!SSL_IS_DTLS(s))
RECORD_LAYER_reset_read_sequence(&s->rlayer);
mac_secret = &(s->s3->read_mac_secret[0]);
mac_secret_size = &(s->s3->read_mac_secret_size);
} else {
if (s->tlsext_use_etm)
s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
else
s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
s->mac_flags |= SSL_MAC_FLAG_WRITE_MAC_STREAM;
else
s->mac_flags &= ~SSL_MAC_FLAG_WRITE_MAC_STREAM;
if (s->enc_write_ctx != NULL && !SSL_IS_DTLS(s))
reuse_dd = 1;
else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL)
goto err;
dd = s->enc_write_ctx;
if (SSL_IS_DTLS(s)) {
mac_ctx = EVP_MD_CTX_new();
if (mac_ctx == NULL)
goto err;
s->write_hash = mac_ctx;
} else {
mac_ctx = ssl_replace_hash(&s->write_hash, NULL);
if (mac_ctx == NULL)
goto err;
}
#ifndef OPENSSL_NO_COMP
COMP_CTX_free(s->compress);
s->compress = NULL;
if (comp != NULL) {
s->compress = COMP_CTX_new(comp->method);
if (s->compress == NULL) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,
SSL_R_COMPRESSION_LIBRARY_ERROR);
goto err2;
}
}
#endif
/*
* this is done by dtls1_reset_seq_numbers for DTLS
*/
if (!SSL_IS_DTLS(s))
RECORD_LAYER_reset_write_sequence(&s->rlayer);
mac_secret = &(s->s3->write_mac_secret[0]);
mac_secret_size = &(s->s3->write_mac_secret_size);
}
if (reuse_dd)
EVP_CIPHER_CTX_reset(dd);
p = s->s3->tmp.key_block;
i = *mac_secret_size = s->s3->tmp.new_mac_secret_size;
cl = EVP_CIPHER_key_length(c);
j = cl;
/* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
/* If GCM/CCM mode only part of IV comes from PRF */
if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
k = EVP_GCM_TLS_FIXED_IV_LEN;
else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE)
k = EVP_CCM_TLS_FIXED_IV_LEN;
else
k = EVP_CIPHER_iv_length(c);
if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
(which == SSL3_CHANGE_CIPHER_SERVER_READ)) {
ms = &(p[0]);
n = i + i;
key = &(p[n]);
n += j + j;
iv = &(p[n]);
n += k + k;
} else {
n = i;
ms = &(p[n]);
n += i + j;
key = &(p[n]);
n += j + k;
iv = &(p[n]);
n += k;
}
if (n > s->s3->tmp.key_block_length) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
memcpy(mac_secret, ms, i);
if (!(EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER)) {
mac_key = EVP_PKEY_new_mac_key(mac_type, NULL,
mac_secret, *mac_secret_size);
if (mac_key == NULL
|| EVP_DigestSignInit(mac_ctx, NULL, m, NULL, mac_key) <= 0) {
EVP_PKEY_free(mac_key);
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
EVP_PKEY_free(mac_key);
}
#ifdef SSL_DEBUG
printf("which = %04X\nmac key=", which);
{
int z;
for (z = 0; z < i; z++)
printf("%02X%c", ms[z], ((z + 1) % 16) ? ' ' : '\n');
}
#endif
if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) {
if (!EVP_CipherInit_ex(dd, c, NULL, key, NULL, (which & SSL3_CC_WRITE))
|| !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GCM_SET_IV_FIXED, k, iv)) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
} else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE) {
int taglen;
if (s->s3->tmp.
new_cipher->algorithm_enc & (SSL_AES128CCM8 | SSL_AES256CCM8))
taglen = 8;
else
taglen = 16;
if (!EVP_CipherInit_ex(dd, c, NULL, NULL, NULL, (which & SSL3_CC_WRITE))
|| !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_IVLEN, 12, NULL)
|| !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_TAG, taglen, NULL)
|| !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_CCM_SET_IV_FIXED, k, iv)
|| !EVP_CipherInit_ex(dd, NULL, NULL, key, NULL, -1)) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
} else {
if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
}
/* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */
if ((EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER) && *mac_secret_size
&& !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_MAC_KEY,
*mac_secret_size, mac_secret)) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
#ifdef OPENSSL_SSL_TRACE_CRYPTO
if (s->msg_callback) {
int wh = which & SSL3_CC_WRITE ? TLS1_RT_CRYPTO_WRITE : 0;
if (*mac_secret_size)
s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_MAC,
mac_secret, *mac_secret_size,
s, s->msg_callback_arg);
if (c->key_len)
s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_KEY,
key, c->key_len, s, s->msg_callback_arg);
if (k) {
if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
wh |= TLS1_RT_CRYPTO_FIXED_IV;
else
wh |= TLS1_RT_CRYPTO_IV;
s->msg_callback(2, s->version, wh, iv, k, s, s->msg_callback_arg);
}
}
#endif
#ifdef SSL_DEBUG
printf("which = %04X\nkey=", which);
{
int z;
for (z = 0; z < EVP_CIPHER_key_length(c); z++)
printf("%02X%c", key[z], ((z + 1) % 16) ? ' ' : '\n');
}
printf("\niv=");
{
int z;
for (z = 0; z < k; z++)
printf("%02X%c", iv[z], ((z + 1) % 16) ? ' ' : '\n');
}
printf("\n");
#endif
OPENSSL_cleanse(tmp1, sizeof(tmp1));
OPENSSL_cleanse(tmp2, sizeof(tmp1));
OPENSSL_cleanse(iv1, sizeof(iv1));
OPENSSL_cleanse(iv2, sizeof(iv2));
return (1);
err:
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_MALLOC_FAILURE);
err2:
OPENSSL_cleanse(tmp1, sizeof(tmp1));
OPENSSL_cleanse(tmp2, sizeof(tmp1));
OPENSSL_cleanse(iv1, sizeof(iv1));
OPENSSL_cleanse(iv2, sizeof(iv2));
return (0);
} | int tls1_change_cipher_state(SSL *s, int which)
{
unsigned char *p, *mac_secret;
unsigned char tmp1[EVP_MAX_KEY_LENGTH];
unsigned char tmp2[EVP_MAX_KEY_LENGTH];
unsigned char iv1[EVP_MAX_IV_LENGTH * 2];
unsigned char iv2[EVP_MAX_IV_LENGTH * 2];
unsigned char *ms, *key, *iv;
EVP_CIPHER_CTX *dd;
const EVP_CIPHER *c;
#ifndef OPENSSL_NO_COMP
const SSL_COMP *comp;
#endif
const EVP_MD *m;
int mac_type;
int *mac_secret_size;
EVP_MD_CTX *mac_ctx;
EVP_PKEY *mac_key;
int n, i, j, k, cl;
int reuse_dd = 0;
c = s->s3->tmp.new_sym_enc;
m = s->s3->tmp.new_hash;
mac_type = s->s3->tmp.new_mac_pkey_type;
#ifndef OPENSSL_NO_COMP
comp = s->s3->tmp.new_compression;
#endif
if (which & SSL3_CC_READ) {
if (s->tlsext_use_etm)
s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
else
s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
s->mac_flags |= SSL_MAC_FLAG_READ_MAC_STREAM;
else
s->mac_flags &= ~SSL_MAC_FLAG_READ_MAC_STREAM;
if (s->enc_read_ctx != NULL)
reuse_dd = 1;
else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL)
goto err;
else
EVP_CIPHER_CTX_reset(s->enc_read_ctx);
dd = s->enc_read_ctx;
mac_ctx = ssl_replace_hash(&s->read_hash, NULL);
if (mac_ctx == NULL)
goto err;
#ifndef OPENSSL_NO_COMP
COMP_CTX_free(s->expand);
s->expand = NULL;
if (comp != NULL) {
s->expand = COMP_CTX_new(comp->method);
if (s->expand == NULL) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,
SSL_R_COMPRESSION_LIBRARY_ERROR);
goto err2;
}
}
#endif
if (!SSL_IS_DTLS(s))
RECORD_LAYER_reset_read_sequence(&s->rlayer);
mac_secret = &(s->s3->read_mac_secret[0]);
mac_secret_size = &(s->s3->read_mac_secret_size);
} else {
if (s->tlsext_use_etm)
s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
else
s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
s->mac_flags |= SSL_MAC_FLAG_WRITE_MAC_STREAM;
else
s->mac_flags &= ~SSL_MAC_FLAG_WRITE_MAC_STREAM;
if (s->enc_write_ctx != NULL && !SSL_IS_DTLS(s))
reuse_dd = 1;
else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL)
goto err;
dd = s->enc_write_ctx;
if (SSL_IS_DTLS(s)) {
mac_ctx = EVP_MD_CTX_new();
if (mac_ctx == NULL)
goto err;
s->write_hash = mac_ctx;
} else {
mac_ctx = ssl_replace_hash(&s->write_hash, NULL);
if (mac_ctx == NULL)
goto err;
}
#ifndef OPENSSL_NO_COMP
COMP_CTX_free(s->compress);
s->compress = NULL;
if (comp != NULL) {
s->compress = COMP_CTX_new(comp->method);
if (s->compress == NULL) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,
SSL_R_COMPRESSION_LIBRARY_ERROR);
goto err2;
}
}
#endif
if (!SSL_IS_DTLS(s))
RECORD_LAYER_reset_write_sequence(&s->rlayer);
mac_secret = &(s->s3->write_mac_secret[0]);
mac_secret_size = &(s->s3->write_mac_secret_size);
}
if (reuse_dd)
EVP_CIPHER_CTX_reset(dd);
p = s->s3->tmp.key_block;
i = *mac_secret_size = s->s3->tmp.new_mac_secret_size;
cl = EVP_CIPHER_key_length(c);
j = cl;
if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
k = EVP_GCM_TLS_FIXED_IV_LEN;
else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE)
k = EVP_CCM_TLS_FIXED_IV_LEN;
else
k = EVP_CIPHER_iv_length(c);
if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
(which == SSL3_CHANGE_CIPHER_SERVER_READ)) {
ms = &(p[0]);
n = i + i;
key = &(p[n]);
n += j + j;
iv = &(p[n]);
n += k + k;
} else {
n = i;
ms = &(p[n]);
n += i + j;
key = &(p[n]);
n += j + k;
iv = &(p[n]);
n += k;
}
if (n > s->s3->tmp.key_block_length) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
memcpy(mac_secret, ms, i);
if (!(EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER)) {
mac_key = EVP_PKEY_new_mac_key(mac_type, NULL,
mac_secret, *mac_secret_size);
if (mac_key == NULL
|| EVP_DigestSignInit(mac_ctx, NULL, m, NULL, mac_key) <= 0) {
EVP_PKEY_free(mac_key);
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
EVP_PKEY_free(mac_key);
}
#ifdef SSL_DEBUG
printf("which = %04X\nmac key=", which);
{
int z;
for (z = 0; z < i; z++)
printf("%02X%c", ms[z], ((z + 1) % 16) ? ' ' : '\n');
}
#endif
if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) {
if (!EVP_CipherInit_ex(dd, c, NULL, key, NULL, (which & SSL3_CC_WRITE))
|| !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GCM_SET_IV_FIXED, k, iv)) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
} else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE) {
int taglen;
if (s->s3->tmp.
new_cipher->algorithm_enc & (SSL_AES128CCM8 | SSL_AES256CCM8))
taglen = 8;
else
taglen = 16;
if (!EVP_CipherInit_ex(dd, c, NULL, NULL, NULL, (which & SSL3_CC_WRITE))
|| !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_IVLEN, 12, NULL)
|| !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_TAG, taglen, NULL)
|| !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_CCM_SET_IV_FIXED, k, iv)
|| !EVP_CipherInit_ex(dd, NULL, NULL, key, NULL, -1)) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
} else {
if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
}
if ((EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER) && *mac_secret_size
&& !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_MAC_KEY,
*mac_secret_size, mac_secret)) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
#ifdef OPENSSL_SSL_TRACE_CRYPTO
if (s->msg_callback) {
int wh = which & SSL3_CC_WRITE ? TLS1_RT_CRYPTO_WRITE : 0;
if (*mac_secret_size)
s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_MAC,
mac_secret, *mac_secret_size,
s, s->msg_callback_arg);
if (c->key_len)
s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_KEY,
key, c->key_len, s, s->msg_callback_arg);
if (k) {
if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
wh |= TLS1_RT_CRYPTO_FIXED_IV;
else
wh |= TLS1_RT_CRYPTO_IV;
s->msg_callback(2, s->version, wh, iv, k, s, s->msg_callback_arg);
}
}
#endif
#ifdef SSL_DEBUG
printf("which = %04X\nkey=", which);
{
int z;
for (z = 0; z < EVP_CIPHER_key_length(c); z++)
printf("%02X%c", key[z], ((z + 1) % 16) ? ' ' : '\n');
}
printf("\niv=");
{
int z;
for (z = 0; z < k; z++)
printf("%02X%c", iv[z], ((z + 1) % 16) ? ' ' : '\n');
}
printf("\n");
#endif
OPENSSL_cleanse(tmp1, sizeof(tmp1));
OPENSSL_cleanse(tmp2, sizeof(tmp1));
OPENSSL_cleanse(iv1, sizeof(iv1));
OPENSSL_cleanse(iv2, sizeof(iv2));
return (1);
err:
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_MALLOC_FAILURE);
err2:
OPENSSL_cleanse(tmp1, sizeof(tmp1));
OPENSSL_cleanse(tmp2, sizeof(tmp1));
OPENSSL_cleanse(iv1, sizeof(iv1));
OPENSSL_cleanse(iv2, sizeof(iv2));
return (0);
} | 367,526 |
0 | int tls12_get_sigid(const EVP_PKEY *pk)
{
return tls12_find_id(EVP_PKEY_id(pk), tls12_sig, OSSL_NELEM(tls12_sig));
} | int tls12_get_sigid(const EVP_PKEY *pk)
{
return tls12_find_id(EVP_PKEY_id(pk), tls12_sig, OSSL_NELEM(tls12_sig));
} | 367,527 |
0 | int ssl_prepare_clienthello_tlsext(SSL *s)
{
s->s3->alpn_sent = 0;
return 1;
} | int ssl_prepare_clienthello_tlsext(SSL *s)
{
s->s3->alpn_sent = 0;
return 1;
} | 367,528 |
0 | size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
const unsigned char *psig, size_t psiglen)
{
unsigned char *tmpout = out;
size_t i;
for (i = 0; i < psiglen; i += 2, psig += 2) {
if (tls12_sigalg_allowed(s, SSL_SECOP_SIGALG_SUPPORTED, psig)) {
*tmpout++ = psig[0];
*tmpout++ = psig[1];
}
}
return tmpout - out;
} | size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
const unsigned char *psig, size_t psiglen)
{
unsigned char *tmpout = out;
size_t i;
for (i = 0; i < psiglen; i += 2, psig += 2) {
if (tls12_sigalg_allowed(s, SSL_SECOP_SIGALG_SUPPORTED, psig)) {
*tmpout++ = psig[0];
*tmpout++ = psig[1];
}
}
return tmpout - out;
} | 367,529 |
0 | static void get_sigorhash(int *psig, int *phash, const char *str)
{
if (strcmp(str, "RSA") == 0) {
*psig = EVP_PKEY_RSA;
} else if (strcmp(str, "DSA") == 0) {
*psig = EVP_PKEY_DSA;
} else if (strcmp(str, "ECDSA") == 0) {
*psig = EVP_PKEY_EC;
} else {
*phash = OBJ_sn2nid(str);
if (*phash == NID_undef)
*phash = OBJ_ln2nid(str);
}
} | static void get_sigorhash(int *psig, int *phash, const char *str)
{
if (strcmp(str, "RSA") == 0) {
*psig = EVP_PKEY_RSA;
} else if (strcmp(str, "DSA") == 0) {
*psig = EVP_PKEY_DSA;
} else if (strcmp(str, "ECDSA") == 0) {
*psig = EVP_PKEY_EC;
} else {
*phash = OBJ_sn2nid(str);
if (*phash == NID_undef)
*phash = OBJ_ln2nid(str);
}
} | 367,531 |
0 | static int tls1_set_shared_sigalgs(SSL *s)
{
const unsigned char *pref, *allow, *conf;
size_t preflen, allowlen, conflen;
size_t nmatch;
TLS_SIGALGS *salgs = NULL;
CERT *c = s->cert;
unsigned int is_suiteb = tls1_suiteb(s);
OPENSSL_free(c->shared_sigalgs);
c->shared_sigalgs = NULL;
c->shared_sigalgslen = 0;
/* If client use client signature algorithms if not NULL */
if (!s->server && c->client_sigalgs && !is_suiteb) {
conf = c->client_sigalgs;
conflen = c->client_sigalgslen;
} else if (c->conf_sigalgs && !is_suiteb) {
conf = c->conf_sigalgs;
conflen = c->conf_sigalgslen;
} else
conflen = tls12_get_psigalgs(s, 0, &conf);
if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE || is_suiteb) {
pref = conf;
preflen = conflen;
allow = s->s3->tmp.peer_sigalgs;
allowlen = s->s3->tmp.peer_sigalgslen;
} else {
allow = conf;
allowlen = conflen;
pref = s->s3->tmp.peer_sigalgs;
preflen = s->s3->tmp.peer_sigalgslen;
}
nmatch = tls12_shared_sigalgs(s, NULL, pref, preflen, allow, allowlen);
if (nmatch) {
salgs = OPENSSL_malloc(nmatch * sizeof(TLS_SIGALGS));
if (salgs == NULL)
return 0;
nmatch = tls12_shared_sigalgs(s, salgs, pref, preflen, allow, allowlen);
} else {
salgs = NULL;
}
c->shared_sigalgs = salgs;
c->shared_sigalgslen = nmatch;
return 1;
} | static int tls1_set_shared_sigalgs(SSL *s)
{
const unsigned char *pref, *allow, *conf;
size_t preflen, allowlen, conflen;
size_t nmatch;
TLS_SIGALGS *salgs = NULL;
CERT *c = s->cert;
unsigned int is_suiteb = tls1_suiteb(s);
OPENSSL_free(c->shared_sigalgs);
c->shared_sigalgs = NULL;
c->shared_sigalgslen = 0;
if (!s->server && c->client_sigalgs && !is_suiteb) {
conf = c->client_sigalgs;
conflen = c->client_sigalgslen;
} else if (c->conf_sigalgs && !is_suiteb) {
conf = c->conf_sigalgs;
conflen = c->conf_sigalgslen;
} else
conflen = tls12_get_psigalgs(s, 0, &conf);
if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE || is_suiteb) {
pref = conf;
preflen = conflen;
allow = s->s3->tmp.peer_sigalgs;
allowlen = s->s3->tmp.peer_sigalgslen;
} else {
allow = conf;
allowlen = conflen;
pref = s->s3->tmp.peer_sigalgs;
preflen = s->s3->tmp.peer_sigalgslen;
}
nmatch = tls12_shared_sigalgs(s, NULL, pref, preflen, allow, allowlen);
if (nmatch) {
salgs = OPENSSL_malloc(nmatch * sizeof(TLS_SIGALGS));
if (salgs == NULL)
return 0;
nmatch = tls12_shared_sigalgs(s, salgs, pref, preflen, allow, allowlen);
} else {
salgs = NULL;
}
c->shared_sigalgs = salgs;
c->shared_sigalgslen = nmatch;
return 1;
} | 367,532 |
0 | static int tls12_sigalg_allowed(SSL *s, int op, const unsigned char *ptmp)
{
/* See if we have an entry in the hash table and it is enabled */
const tls12_hash_info *hinf = tls12_get_hash_info(ptmp[0]);
if (hinf == NULL || ssl_md(hinf->md_idx) == NULL)
return 0;
/* See if public key algorithm allowed */
if (tls12_get_pkey_idx(ptmp[1]) == -1)
return 0;
/* Finally see if security callback allows it */
return ssl_security(s, op, hinf->secbits, hinf->nid, (void *)ptmp);
} | static int tls12_sigalg_allowed(SSL *s, int op, const unsigned char *ptmp)
{
const tls12_hash_info *hinf = tls12_get_hash_info(ptmp[0]);
if (hinf == NULL || ssl_md(hinf->md_idx) == NULL)
return 0;
if (tls12_get_pkey_idx(ptmp[1]) == -1)
return 0;
return ssl_security(s, op, hinf->secbits, hinf->nid, (void *)ptmp);
} | 367,534 |
0 | int tls1_set_curves(unsigned char **pext, size_t *pextlen,
int *curves, size_t ncurves)
{
unsigned char *clist, *p;
size_t i;
/*
* Bitmap of curves included to detect duplicates: only works while curve
* ids < 32
*/
unsigned long dup_list = 0;
clist = OPENSSL_malloc(ncurves * 2);
if (clist == NULL)
return 0;
for (i = 0, p = clist; i < ncurves; i++) {
unsigned long idmask;
int id;
id = tls1_ec_nid2curve_id(curves[i]);
idmask = 1L << id;
if (!id || (dup_list & idmask)) {
OPENSSL_free(clist);
return 0;
}
dup_list |= idmask;
s2n(id, p);
}
OPENSSL_free(*pext);
*pext = clist;
*pextlen = ncurves * 2;
return 1;
} | int tls1_set_curves(unsigned char **pext, size_t *pextlen,
int *curves, size_t ncurves)
{
unsigned char *clist, *p;
size_t i;
unsigned long dup_list = 0;
clist = OPENSSL_malloc(ncurves * 2);
if (clist == NULL)
return 0;
for (i = 0, p = clist; i < ncurves; i++) {
unsigned long idmask;
int id;
id = tls1_ec_nid2curve_id(curves[i]);
idmask = 1L << id;
if (!id || (dup_list & idmask)) {
OPENSSL_free(clist);
return 0;
}
dup_list |= idmask;
s2n(id, p);
}
OPENSSL_free(*pext);
*pext = clist;
*pextlen = ncurves * 2;
return 1;
} | 367,535 |
0 | void SSL3_RECORD_set_seq_num(SSL3_RECORD *r, const unsigned char *seq_num)
{
memcpy(r->seq_num, seq_num, SEQ_NUM_SIZE);
} | void SSL3_RECORD_set_seq_num(SSL3_RECORD *r, const unsigned char *seq_num)
{
memcpy(r->seq_num, seq_num, SEQ_NUM_SIZE);
} | 367,536 |
0 | DH *ssl_get_auto_dh(SSL *s)
{
int dh_secbits = 80;
if (s->cert->dh_tmp_auto == 2)
return DH_get_1024_160();
if (s->s3->tmp.new_cipher->algorithm_auth & (SSL_aNULL | SSL_aPSK)) {
if (s->s3->tmp.new_cipher->strength_bits == 256)
dh_secbits = 128;
else
dh_secbits = 80;
} else {
CERT_PKEY *cpk = ssl_get_server_send_pkey(s);
dh_secbits = EVP_PKEY_security_bits(cpk->privatekey);
}
if (dh_secbits >= 128) {
DH *dhp = DH_new();
BIGNUM *p, *g;
if (dhp == NULL)
return NULL;
g = BN_new();
if (g != NULL)
BN_set_word(g, 2);
if (dh_secbits >= 192)
p = BN_get_rfc3526_prime_8192(NULL);
else
p = BN_get_rfc3526_prime_3072(NULL);
if (p == NULL || g == NULL || !DH_set0_pqg(dhp, p, NULL, g)) {
DH_free(dhp);
BN_free(p);
BN_free(g);
return NULL;
}
return dhp;
}
if (dh_secbits >= 112)
return DH_get_2048_224();
return DH_get_1024_160();
} | DH *ssl_get_auto_dh(SSL *s)
{
int dh_secbits = 80;
if (s->cert->dh_tmp_auto == 2)
return DH_get_1024_160();
if (s->s3->tmp.new_cipher->algorithm_auth & (SSL_aNULL | SSL_aPSK)) {
if (s->s3->tmp.new_cipher->strength_bits == 256)
dh_secbits = 128;
else
dh_secbits = 80;
} else {
CERT_PKEY *cpk = ssl_get_server_send_pkey(s);
dh_secbits = EVP_PKEY_security_bits(cpk->privatekey);
}
if (dh_secbits >= 128) {
DH *dhp = DH_new();
BIGNUM *p, *g;
if (dhp == NULL)
return NULL;
g = BN_new();
if (g != NULL)
BN_set_word(g, 2);
if (dh_secbits >= 192)
p = BN_get_rfc3526_prime_8192(NULL);
else
p = BN_get_rfc3526_prime_3072(NULL);
if (p == NULL || g == NULL || !DH_set0_pqg(dhp, p, NULL, g)) {
DH_free(dhp);
BN_free(p);
BN_free(g);
return NULL;
}
return dhp;
}
if (dh_secbits >= 112)
return DH_get_2048_224();
return DH_get_1024_160();
} | 367,538 |
0 | int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
int idx)
{
int i;
int rv = 0;
int check_flags = 0, strict_mode;
CERT_PKEY *cpk = NULL;
CERT *c = s->cert;
uint32_t *pvalid;
unsigned int suiteb_flags = tls1_suiteb(s);
/* idx == -1 means checking server chains */
if (idx != -1) {
/* idx == -2 means checking client certificate chains */
if (idx == -2) {
cpk = c->key;
idx = cpk - c->pkeys;
} else
cpk = c->pkeys + idx;
pvalid = s->s3->tmp.valid_flags + idx;
x = cpk->x509;
pk = cpk->privatekey;
chain = cpk->chain;
strict_mode = c->cert_flags & SSL_CERT_FLAGS_CHECK_TLS_STRICT;
/* If no cert or key, forget it */
if (!x || !pk)
goto end;
} else {
if (!x || !pk)
return 0;
idx = ssl_cert_type(x, pk);
if (idx == -1)
return 0;
pvalid = s->s3->tmp.valid_flags + idx;
if (c->cert_flags & SSL_CERT_FLAGS_CHECK_TLS_STRICT)
check_flags = CERT_PKEY_STRICT_FLAGS;
else
check_flags = CERT_PKEY_VALID_FLAGS;
strict_mode = 1;
}
if (suiteb_flags) {
int ok;
if (check_flags)
check_flags |= CERT_PKEY_SUITEB;
ok = X509_chain_check_suiteb(NULL, x, chain, suiteb_flags);
if (ok == X509_V_OK)
rv |= CERT_PKEY_SUITEB;
else if (!check_flags)
goto end;
}
/*
* Check all signature algorithms are consistent with signature
* algorithms extension if TLS 1.2 or later and strict mode.
*/
if (TLS1_get_version(s) >= TLS1_2_VERSION && strict_mode) {
int default_nid;
unsigned char rsign = 0;
if (s->s3->tmp.peer_sigalgs)
default_nid = 0;
/* If no sigalgs extension use defaults from RFC5246 */
else {
switch (idx) {
case SSL_PKEY_RSA_ENC:
case SSL_PKEY_RSA_SIGN:
rsign = TLSEXT_signature_rsa;
default_nid = NID_sha1WithRSAEncryption;
break;
case SSL_PKEY_DSA_SIGN:
rsign = TLSEXT_signature_dsa;
default_nid = NID_dsaWithSHA1;
break;
case SSL_PKEY_ECC:
rsign = TLSEXT_signature_ecdsa;
default_nid = NID_ecdsa_with_SHA1;
break;
case SSL_PKEY_GOST01:
rsign = TLSEXT_signature_gostr34102001;
default_nid = NID_id_GostR3411_94_with_GostR3410_2001;
break;
case SSL_PKEY_GOST12_256:
rsign = TLSEXT_signature_gostr34102012_256;
default_nid = NID_id_tc26_signwithdigest_gost3410_2012_256;
break;
case SSL_PKEY_GOST12_512:
rsign = TLSEXT_signature_gostr34102012_512;
default_nid = NID_id_tc26_signwithdigest_gost3410_2012_512;
break;
default:
default_nid = -1;
break;
}
}
/*
* If peer sent no signature algorithms extension and we have set
* preferred signature algorithms check we support sha1.
*/
if (default_nid > 0 && c->conf_sigalgs) {
size_t j;
const unsigned char *p = c->conf_sigalgs;
for (j = 0; j < c->conf_sigalgslen; j += 2, p += 2) {
if (p[0] == TLSEXT_hash_sha1 && p[1] == rsign)
break;
}
if (j == c->conf_sigalgslen) {
if (check_flags)
goto skip_sigs;
else
goto end;
}
}
/* Check signature algorithm of each cert in chain */
if (!tls1_check_sig_alg(c, x, default_nid)) {
if (!check_flags)
goto end;
} else
rv |= CERT_PKEY_EE_SIGNATURE;
rv |= CERT_PKEY_CA_SIGNATURE;
for (i = 0; i < sk_X509_num(chain); i++) {
if (!tls1_check_sig_alg(c, sk_X509_value(chain, i), default_nid)) {
if (check_flags) {
rv &= ~CERT_PKEY_CA_SIGNATURE;
break;
} else
goto end;
}
}
}
/* Else not TLS 1.2, so mark EE and CA signing algorithms OK */
else if (check_flags)
rv |= CERT_PKEY_EE_SIGNATURE | CERT_PKEY_CA_SIGNATURE;
skip_sigs:
/* Check cert parameters are consistent */
if (tls1_check_cert_param(s, x, check_flags ? 1 : 2))
rv |= CERT_PKEY_EE_PARAM;
else if (!check_flags)
goto end;
if (!s->server)
rv |= CERT_PKEY_CA_PARAM;
/* In strict mode check rest of chain too */
else if (strict_mode) {
rv |= CERT_PKEY_CA_PARAM;
for (i = 0; i < sk_X509_num(chain); i++) {
X509 *ca = sk_X509_value(chain, i);
if (!tls1_check_cert_param(s, ca, 0)) {
if (check_flags) {
rv &= ~CERT_PKEY_CA_PARAM;
break;
} else
goto end;
}
}
}
if (!s->server && strict_mode) {
STACK_OF(X509_NAME) *ca_dn;
int check_type = 0;
switch (EVP_PKEY_id(pk)) {
case EVP_PKEY_RSA:
check_type = TLS_CT_RSA_SIGN;
break;
case EVP_PKEY_DSA:
check_type = TLS_CT_DSS_SIGN;
break;
case EVP_PKEY_EC:
check_type = TLS_CT_ECDSA_SIGN;
break;
}
if (check_type) {
const unsigned char *ctypes;
int ctypelen;
if (c->ctypes) {
ctypes = c->ctypes;
ctypelen = (int)c->ctype_num;
} else {
ctypes = (unsigned char *)s->s3->tmp.ctype;
ctypelen = s->s3->tmp.ctype_num;
}
for (i = 0; i < ctypelen; i++) {
if (ctypes[i] == check_type) {
rv |= CERT_PKEY_CERT_TYPE;
break;
}
}
if (!(rv & CERT_PKEY_CERT_TYPE) && !check_flags)
goto end;
} else
rv |= CERT_PKEY_CERT_TYPE;
ca_dn = s->s3->tmp.ca_names;
if (!sk_X509_NAME_num(ca_dn))
rv |= CERT_PKEY_ISSUER_NAME;
if (!(rv & CERT_PKEY_ISSUER_NAME)) {
if (ssl_check_ca_name(ca_dn, x))
rv |= CERT_PKEY_ISSUER_NAME;
}
if (!(rv & CERT_PKEY_ISSUER_NAME)) {
for (i = 0; i < sk_X509_num(chain); i++) {
X509 *xtmp = sk_X509_value(chain, i);
if (ssl_check_ca_name(ca_dn, xtmp)) {
rv |= CERT_PKEY_ISSUER_NAME;
break;
}
}
}
if (!check_flags && !(rv & CERT_PKEY_ISSUER_NAME))
goto end;
} else
rv |= CERT_PKEY_ISSUER_NAME | CERT_PKEY_CERT_TYPE;
if (!check_flags || (rv & check_flags) == check_flags)
rv |= CERT_PKEY_VALID;
end:
if (TLS1_get_version(s) >= TLS1_2_VERSION) {
if (*pvalid & CERT_PKEY_EXPLICIT_SIGN)
rv |= CERT_PKEY_EXPLICIT_SIGN | CERT_PKEY_SIGN;
else if (s->s3->tmp.md[idx] != NULL)
rv |= CERT_PKEY_SIGN;
} else
rv |= CERT_PKEY_SIGN | CERT_PKEY_EXPLICIT_SIGN;
/*
* When checking a CERT_PKEY structure all flags are irrelevant if the
* chain is invalid.
*/
if (!check_flags) {
if (rv & CERT_PKEY_VALID)
*pvalid = rv;
else {
/* Preserve explicit sign flag, clear rest */
*pvalid &= CERT_PKEY_EXPLICIT_SIGN;
return 0;
}
}
return rv;
} | int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
int idx)
{
int i;
int rv = 0;
int check_flags = 0, strict_mode;
CERT_PKEY *cpk = NULL;
CERT *c = s->cert;
uint32_t *pvalid;
unsigned int suiteb_flags = tls1_suiteb(s);
if (idx != -1) {
if (idx == -2) {
cpk = c->key;
idx = cpk - c->pkeys;
} else
cpk = c->pkeys + idx;
pvalid = s->s3->tmp.valid_flags + idx;
x = cpk->x509;
pk = cpk->privatekey;
chain = cpk->chain;
strict_mode = c->cert_flags & SSL_CERT_FLAGS_CHECK_TLS_STRICT;
if (!x || !pk)
goto end;
} else {
if (!x || !pk)
return 0;
idx = ssl_cert_type(x, pk);
if (idx == -1)
return 0;
pvalid = s->s3->tmp.valid_flags + idx;
if (c->cert_flags & SSL_CERT_FLAGS_CHECK_TLS_STRICT)
check_flags = CERT_PKEY_STRICT_FLAGS;
else
check_flags = CERT_PKEY_VALID_FLAGS;
strict_mode = 1;
}
if (suiteb_flags) {
int ok;
if (check_flags)
check_flags |= CERT_PKEY_SUITEB;
ok = X509_chain_check_suiteb(NULL, x, chain, suiteb_flags);
if (ok == X509_V_OK)
rv |= CERT_PKEY_SUITEB;
else if (!check_flags)
goto end;
}
if (TLS1_get_version(s) >= TLS1_2_VERSION && strict_mode) {
int default_nid;
unsigned char rsign = 0;
if (s->s3->tmp.peer_sigalgs)
default_nid = 0;
else {
switch (idx) {
case SSL_PKEY_RSA_ENC:
case SSL_PKEY_RSA_SIGN:
rsign = TLSEXT_signature_rsa;
default_nid = NID_sha1WithRSAEncryption;
break;
case SSL_PKEY_DSA_SIGN:
rsign = TLSEXT_signature_dsa;
default_nid = NID_dsaWithSHA1;
break;
case SSL_PKEY_ECC:
rsign = TLSEXT_signature_ecdsa;
default_nid = NID_ecdsa_with_SHA1;
break;
case SSL_PKEY_GOST01:
rsign = TLSEXT_signature_gostr34102001;
default_nid = NID_id_GostR3411_94_with_GostR3410_2001;
break;
case SSL_PKEY_GOST12_256:
rsign = TLSEXT_signature_gostr34102012_256;
default_nid = NID_id_tc26_signwithdigest_gost3410_2012_256;
break;
case SSL_PKEY_GOST12_512:
rsign = TLSEXT_signature_gostr34102012_512;
default_nid = NID_id_tc26_signwithdigest_gost3410_2012_512;
break;
default:
default_nid = -1;
break;
}
}
if (default_nid > 0 && c->conf_sigalgs) {
size_t j;
const unsigned char *p = c->conf_sigalgs;
for (j = 0; j < c->conf_sigalgslen; j += 2, p += 2) {
if (p[0] == TLSEXT_hash_sha1 && p[1] == rsign)
break;
}
if (j == c->conf_sigalgslen) {
if (check_flags)
goto skip_sigs;
else
goto end;
}
}
if (!tls1_check_sig_alg(c, x, default_nid)) {
if (!check_flags)
goto end;
} else
rv |= CERT_PKEY_EE_SIGNATURE;
rv |= CERT_PKEY_CA_SIGNATURE;
for (i = 0; i < sk_X509_num(chain); i++) {
if (!tls1_check_sig_alg(c, sk_X509_value(chain, i), default_nid)) {
if (check_flags) {
rv &= ~CERT_PKEY_CA_SIGNATURE;
break;
} else
goto end;
}
}
}
else if (check_flags)
rv |= CERT_PKEY_EE_SIGNATURE | CERT_PKEY_CA_SIGNATURE;
skip_sigs:
if (tls1_check_cert_param(s, x, check_flags ? 1 : 2))
rv |= CERT_PKEY_EE_PARAM;
else if (!check_flags)
goto end;
if (!s->server)
rv |= CERT_PKEY_CA_PARAM;
else if (strict_mode) {
rv |= CERT_PKEY_CA_PARAM;
for (i = 0; i < sk_X509_num(chain); i++) {
X509 *ca = sk_X509_value(chain, i);
if (!tls1_check_cert_param(s, ca, 0)) {
if (check_flags) {
rv &= ~CERT_PKEY_CA_PARAM;
break;
} else
goto end;
}
}
}
if (!s->server && strict_mode) {
STACK_OF(X509_NAME) *ca_dn;
int check_type = 0;
switch (EVP_PKEY_id(pk)) {
case EVP_PKEY_RSA:
check_type = TLS_CT_RSA_SIGN;
break;
case EVP_PKEY_DSA:
check_type = TLS_CT_DSS_SIGN;
break;
case EVP_PKEY_EC:
check_type = TLS_CT_ECDSA_SIGN;
break;
}
if (check_type) {
const unsigned char *ctypes;
int ctypelen;
if (c->ctypes) {
ctypes = c->ctypes;
ctypelen = (int)c->ctype_num;
} else {
ctypes = (unsigned char *)s->s3->tmp.ctype;
ctypelen = s->s3->tmp.ctype_num;
}
for (i = 0; i < ctypelen; i++) {
if (ctypes[i] == check_type) {
rv |= CERT_PKEY_CERT_TYPE;
break;
}
}
if (!(rv & CERT_PKEY_CERT_TYPE) && !check_flags)
goto end;
} else
rv |= CERT_PKEY_CERT_TYPE;
ca_dn = s->s3->tmp.ca_names;
if (!sk_X509_NAME_num(ca_dn))
rv |= CERT_PKEY_ISSUER_NAME;
if (!(rv & CERT_PKEY_ISSUER_NAME)) {
if (ssl_check_ca_name(ca_dn, x))
rv |= CERT_PKEY_ISSUER_NAME;
}
if (!(rv & CERT_PKEY_ISSUER_NAME)) {
for (i = 0; i < sk_X509_num(chain); i++) {
X509 *xtmp = sk_X509_value(chain, i);
if (ssl_check_ca_name(ca_dn, xtmp)) {
rv |= CERT_PKEY_ISSUER_NAME;
break;
}
}
}
if (!check_flags && !(rv & CERT_PKEY_ISSUER_NAME))
goto end;
} else
rv |= CERT_PKEY_ISSUER_NAME | CERT_PKEY_CERT_TYPE;
if (!check_flags || (rv & check_flags) == check_flags)
rv |= CERT_PKEY_VALID;
end:
if (TLS1_get_version(s) >= TLS1_2_VERSION) {
if (*pvalid & CERT_PKEY_EXPLICIT_SIGN)
rv |= CERT_PKEY_EXPLICIT_SIGN | CERT_PKEY_SIGN;
else if (s->s3->tmp.md[idx] != NULL)
rv |= CERT_PKEY_SIGN;
} else
rv |= CERT_PKEY_SIGN | CERT_PKEY_EXPLICIT_SIGN;
if (!check_flags) {
if (rv & CERT_PKEY_VALID)
*pvalid = rv;
else {
*pvalid &= CERT_PKEY_EXPLICIT_SIGN;
return 0;
}
}
return rv;
} | 367,539 |
0 | static int sig_cb(const char *elem, int len, void *arg)
{
sig_cb_st *sarg = arg;
size_t i;
char etmp[20], *p;
int sig_alg = NID_undef, hash_alg = NID_undef;
if (elem == NULL)
return 0;
if (sarg->sigalgcnt == MAX_SIGALGLEN)
return 0;
if (len > (int)(sizeof(etmp) - 1))
return 0;
memcpy(etmp, elem, len);
etmp[len] = 0;
p = strchr(etmp, '+');
if (!p)
return 0;
*p = 0;
p++;
if (!*p)
return 0;
get_sigorhash(&sig_alg, &hash_alg, etmp);
get_sigorhash(&sig_alg, &hash_alg, p);
if (sig_alg == NID_undef || hash_alg == NID_undef)
return 0;
for (i = 0; i < sarg->sigalgcnt; i += 2) {
if (sarg->sigalgs[i] == sig_alg && sarg->sigalgs[i + 1] == hash_alg)
return 0;
}
sarg->sigalgs[sarg->sigalgcnt++] = hash_alg;
sarg->sigalgs[sarg->sigalgcnt++] = sig_alg;
return 1;
} | static int sig_cb(const char *elem, int len, void *arg)
{
sig_cb_st *sarg = arg;
size_t i;
char etmp[20], *p;
int sig_alg = NID_undef, hash_alg = NID_undef;
if (elem == NULL)
return 0;
if (sarg->sigalgcnt == MAX_SIGALGLEN)
return 0;
if (len > (int)(sizeof(etmp) - 1))
return 0;
memcpy(etmp, elem, len);
etmp[len] = 0;
p = strchr(etmp, '+');
if (!p)
return 0;
*p = 0;
p++;
if (!*p)
return 0;
get_sigorhash(&sig_alg, &hash_alg, etmp);
get_sigorhash(&sig_alg, &hash_alg, p);
if (sig_alg == NID_undef || hash_alg == NID_undef)
return 0;
for (i = 0; i < sarg->sigalgcnt; i += 2) {
if (sarg->sigalgs[i] == sig_alg && sarg->sigalgs[i + 1] == hash_alg)
return 0;
}
sarg->sigalgs[sarg->sigalgcnt++] = hash_alg;
sarg->sigalgs[sarg->sigalgcnt++] = sig_alg;
return 1;
} | 367,540 |
0 | static int tls12_find_nid(int id, const tls12_lookup *table, size_t tlen)
{
size_t i;
for (i = 0; i < tlen; i++) {
if ((table[i].id) == id)
return table[i].nid;
}
return NID_undef;
} | static int tls12_find_nid(int id, const tls12_lookup *table, size_t tlen)
{
size_t i;
for (i = 0; i < tlen; i++) {
if ((table[i].id) == id)
return table[i].nid;
}
return NID_undef;
} | 367,542 |
0 | int dtls1_get_record(SSL *s)
{
int ssl_major, ssl_minor;
int i, n;
SSL3_RECORD *rr;
unsigned char *p = NULL;
unsigned short version;
DTLS1_BITMAP *bitmap;
unsigned int is_next_epoch;
rr = RECORD_LAYER_get_rrec(&s->rlayer);
again:
/*
* The epoch may have changed. If so, process all the pending records.
* This is a non-blocking operation.
*/
if (!dtls1_process_buffered_records(s))
return -1;
/* if we're renegotiating, then there may be buffered records */
if (dtls1_get_processed_record(s))
return 1;
/* get something from the wire */
/* check if we have the header */
if ((RECORD_LAYER_get_rstate(&s->rlayer) != SSL_ST_READ_BODY) ||
(RECORD_LAYER_get_packet_length(&s->rlayer) < DTLS1_RT_HEADER_LENGTH)) {
n = ssl3_read_n(s, DTLS1_RT_HEADER_LENGTH,
SSL3_BUFFER_get_len(&s->rlayer.rbuf), 0, 1);
/* read timeout is handled by dtls1_read_bytes */
if (n <= 0)
return (n); /* error or non-blocking */
/* this packet contained a partial record, dump it */
if (RECORD_LAYER_get_packet_length(&s->rlayer) !=
DTLS1_RT_HEADER_LENGTH) {
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
RECORD_LAYER_set_rstate(&s->rlayer, SSL_ST_READ_BODY);
p = RECORD_LAYER_get_packet(&s->rlayer);
if (s->msg_callback)
s->msg_callback(0, 0, SSL3_RT_HEADER, p, DTLS1_RT_HEADER_LENGTH,
s, s->msg_callback_arg);
/* Pull apart the header into the DTLS1_RECORD */
rr->type = *(p++);
ssl_major = *(p++);
ssl_minor = *(p++);
version = (ssl_major << 8) | ssl_minor;
/* sequence number is 64 bits, with top 2 bytes = epoch */
n2s(p, rr->epoch);
memcpy(&(RECORD_LAYER_get_read_sequence(&s->rlayer)[2]), p, 6);
p += 6;
n2s(p, rr->length);
/* Lets check version */
if (!s->first_packet) {
if (version != s->version) {
/* unexpected version, silently discard */
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
}
if ((version & 0xff00) != (s->version & 0xff00)) {
/* wrong version, silently discard record */
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
if (rr->length > SSL3_RT_MAX_ENCRYPTED_LENGTH) {
/* record too long, silently discard it */
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
/* now s->rlayer.rstate == SSL_ST_READ_BODY */
}
/* s->rlayer.rstate == SSL_ST_READ_BODY, get and decode the data */
if (rr->length >
RECORD_LAYER_get_packet_length(&s->rlayer) - DTLS1_RT_HEADER_LENGTH) {
/* now s->packet_length == DTLS1_RT_HEADER_LENGTH */
i = rr->length;
n = ssl3_read_n(s, i, i, 1, 1);
/* this packet contained a partial record, dump it */
if (n != i) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
/*
* now n == rr->length, and s->packet_length ==
* DTLS1_RT_HEADER_LENGTH + rr->length
*/
}
/* set state for later operations */
RECORD_LAYER_set_rstate(&s->rlayer, SSL_ST_READ_HEADER);
/* match epochs. NULL means the packet is dropped on the floor */
bitmap = dtls1_get_bitmap(s, rr, &is_next_epoch);
if (bitmap == NULL) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer); /* dump this record */
goto again; /* get another record */
}
#ifndef OPENSSL_NO_SCTP
/* Only do replay check if no SCTP bio */
if (!BIO_dgram_is_sctp(SSL_get_rbio(s))) {
#endif
/* Check whether this is a repeat, or aged record. */
/*
* TODO: Does it make sense to have replay protection in epoch 0 where
* we have no integrity negotiated yet?
*/
if (!dtls1_record_replay_check(s, bitmap)) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer); /* dump this record */
goto again; /* get another record */
}
#ifndef OPENSSL_NO_SCTP
}
#endif
/* just read a 0 length packet */
if (rr->length == 0)
goto again;
/*
* If this record is from the next epoch (either HM or ALERT), and a
* handshake is currently in progress, buffer it since it cannot be
* processed at this time.
*/
if (is_next_epoch) {
if ((SSL_in_init(s) || ossl_statem_get_in_handshake(s))) {
if (dtls1_buffer_record
(s, &(DTLS_RECORD_LAYER_get_unprocessed_rcds(&s->rlayer)),
rr->seq_num) < 0)
return -1;
}
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
if (!dtls1_process_record(s, bitmap)) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer); /* dump this record */
goto again; /* get another record */
}
return (1);
} | int dtls1_get_record(SSL *s)
{
int ssl_major, ssl_minor;
int i, n;
SSL3_RECORD *rr;
unsigned char *p = NULL;
unsigned short version;
DTLS1_BITMAP *bitmap;
unsigned int is_next_epoch;
rr = RECORD_LAYER_get_rrec(&s->rlayer);
again:
if (!dtls1_process_buffered_records(s))
return -1;
if (dtls1_get_processed_record(s))
return 1;
if ((RECORD_LAYER_get_rstate(&s->rlayer) != SSL_ST_READ_BODY) ||
(RECORD_LAYER_get_packet_length(&s->rlayer) < DTLS1_RT_HEADER_LENGTH)) {
n = ssl3_read_n(s, DTLS1_RT_HEADER_LENGTH,
SSL3_BUFFER_get_len(&s->rlayer.rbuf), 0, 1);
if (n <= 0)
return (n);
if (RECORD_LAYER_get_packet_length(&s->rlayer) !=
DTLS1_RT_HEADER_LENGTH) {
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
RECORD_LAYER_set_rstate(&s->rlayer, SSL_ST_READ_BODY);
p = RECORD_LAYER_get_packet(&s->rlayer);
if (s->msg_callback)
s->msg_callback(0, 0, SSL3_RT_HEADER, p, DTLS1_RT_HEADER_LENGTH,
s, s->msg_callback_arg);
rr->type = *(p++);
ssl_major = *(p++);
ssl_minor = *(p++);
version = (ssl_major << 8) | ssl_minor;
n2s(p, rr->epoch);
memcpy(&(RECORD_LAYER_get_read_sequence(&s->rlayer)[2]), p, 6);
p += 6;
n2s(p, rr->length);
if (!s->first_packet) {
if (version != s->version) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
}
if ((version & 0xff00) != (s->version & 0xff00)) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
if (rr->length > SSL3_RT_MAX_ENCRYPTED_LENGTH) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
}
if (rr->length >
RECORD_LAYER_get_packet_length(&s->rlayer) - DTLS1_RT_HEADER_LENGTH) {
i = rr->length;
n = ssl3_read_n(s, i, i, 1, 1);
if (n != i) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
}
RECORD_LAYER_set_rstate(&s->rlayer, SSL_ST_READ_HEADER);
bitmap = dtls1_get_bitmap(s, rr, &is_next_epoch);
if (bitmap == NULL) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
#ifndef OPENSSL_NO_SCTP
if (!BIO_dgram_is_sctp(SSL_get_rbio(s))) {
#endif
if (!dtls1_record_replay_check(s, bitmap)) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
#ifndef OPENSSL_NO_SCTP
}
#endif
if (rr->length == 0)
goto again;
if (is_next_epoch) {
if ((SSL_in_init(s) || ossl_statem_get_in_handshake(s))) {
if (dtls1_buffer_record
(s, &(DTLS_RECORD_LAYER_get_unprocessed_rcds(&s->rlayer)),
rr->seq_num) < 0)
return -1;
}
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
if (!dtls1_process_record(s, bitmap)) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto again;
}
return (1);
} | 367,543 |
0 | static char ssl_next_proto_validate(PACKET *pkt)
{
PACKET tmp_protocol;
while (PACKET_remaining(pkt)) {
if (!PACKET_get_length_prefixed_1(pkt, &tmp_protocol)
|| PACKET_remaining(&tmp_protocol) == 0)
return 0;
}
return 1;
} | static char ssl_next_proto_validate(PACKET *pkt)
{
PACKET tmp_protocol;
while (PACKET_remaining(pkt)) {
if (!PACKET_get_length_prefixed_1(pkt, &tmp_protocol)
|| PACKET_remaining(&tmp_protocol) == 0)
return 0;
}
return 1;
} | 367,545 |
0 | static const tls12_hash_info *tls12_get_hash_info(unsigned char hash_alg)
{
unsigned int i;
if (hash_alg == 0)
return NULL;
for (i = 0; i < OSSL_NELEM(tls12_md_info); i++) {
if (tls12_md_info[i].tlsext_hash == hash_alg)
return tls12_md_info + i;
}
return NULL;
} | static const tls12_hash_info *tls12_get_hash_info(unsigned char hash_alg)
{
unsigned int i;
if (hash_alg == 0)
return NULL;
for (i = 0; i < OSSL_NELEM(tls12_md_info); i++) {
if (tls12_md_info[i].tlsext_hash == hash_alg)
return tls12_md_info + i;
}
return NULL;
} | 367,546 |
0 | static int tls12_shared_sigalgs(SSL *s, TLS_SIGALGS *shsig,
const unsigned char *pref, size_t preflen,
const unsigned char *allow, size_t allowlen)
{
const unsigned char *ptmp, *atmp;
size_t i, j, nmatch = 0;
for (i = 0, ptmp = pref; i < preflen; i += 2, ptmp += 2) {
/* Skip disabled hashes or signature algorithms */
if (!tls12_sigalg_allowed(s, SSL_SECOP_SIGALG_SHARED, ptmp))
continue;
for (j = 0, atmp = allow; j < allowlen; j += 2, atmp += 2) {
if (ptmp[0] == atmp[0] && ptmp[1] == atmp[1]) {
nmatch++;
if (shsig) {
shsig->rhash = ptmp[0];
shsig->rsign = ptmp[1];
tls1_lookup_sigalg(&shsig->hash_nid,
&shsig->sign_nid,
&shsig->signandhash_nid, ptmp);
shsig++;
}
break;
}
}
}
return nmatch;
} | static int tls12_shared_sigalgs(SSL *s, TLS_SIGALGS *shsig,
const unsigned char *pref, size_t preflen,
const unsigned char *allow, size_t allowlen)
{
const unsigned char *ptmp, *atmp;
size_t i, j, nmatch = 0;
for (i = 0, ptmp = pref; i < preflen; i += 2, ptmp += 2) {
if (!tls12_sigalg_allowed(s, SSL_SECOP_SIGALG_SHARED, ptmp))
continue;
for (j = 0, atmp = allow; j < allowlen; j += 2, atmp += 2) {
if (ptmp[0] == atmp[0] && ptmp[1] == atmp[1]) {
nmatch++;
if (shsig) {
shsig->rhash = ptmp[0];
shsig->rsign = ptmp[1];
tls1_lookup_sigalg(&shsig->hash_nid,
&shsig->sign_nid,
&shsig->signandhash_nid, ptmp);
shsig++;
}
break;
}
}
}
return nmatch;
} | 367,547 |
0 | int ssl3_do_compress(SSL *ssl, SSL3_RECORD *wr)
{
#ifndef OPENSSL_NO_COMP
int i;
i = COMP_compress_block(ssl->compress, wr->data,
SSL3_RT_MAX_COMPRESSED_LENGTH,
wr->input, (int)wr->length);
if (i < 0)
return (0);
else
wr->length = i;
wr->input = wr->data;
#endif
return (1);
} | int ssl3_do_compress(SSL *ssl, SSL3_RECORD *wr)
{
#ifndef OPENSSL_NO_COMP
int i;
i = COMP_compress_block(ssl->compress, wr->data,
SSL3_RT_MAX_COMPRESSED_LENGTH,
wr->input, (int)wr->length);
if (i < 0)
return (0);
else
wr->length = i;
wr->input = wr->data;
#endif
return (1);
} | 367,548 |
0 | int ssl3_get_record(SSL *s)
{
int ssl_major, ssl_minor, al;
int enc_err, n, i, ret = -1;
SSL3_RECORD *rr;
SSL3_BUFFER *rbuf;
SSL_SESSION *sess;
unsigned char *p;
unsigned char md[EVP_MAX_MD_SIZE];
short version;
unsigned mac_size;
unsigned int num_recs = 0;
unsigned int max_recs;
unsigned int j;
rr = RECORD_LAYER_get_rrec(&s->rlayer);
rbuf = RECORD_LAYER_get_rbuf(&s->rlayer);
max_recs = s->max_pipelines;
if (max_recs == 0)
max_recs = 1;
sess = s->session;
do {
/* check if we have the header */
if ((RECORD_LAYER_get_rstate(&s->rlayer) != SSL_ST_READ_BODY) ||
(RECORD_LAYER_get_packet_length(&s->rlayer)
< SSL3_RT_HEADER_LENGTH)) {
n = ssl3_read_n(s, SSL3_RT_HEADER_LENGTH,
SSL3_BUFFER_get_len(rbuf), 0,
num_recs == 0 ? 1 : 0);
if (n <= 0)
return (n); /* error or non-blocking */
RECORD_LAYER_set_rstate(&s->rlayer, SSL_ST_READ_BODY);
p = RECORD_LAYER_get_packet(&s->rlayer);
/*
* The first record received by the server may be a V2ClientHello.
*/
if (s->server && RECORD_LAYER_is_first_record(&s->rlayer)
&& (p[0] & 0x80) && (p[2] == SSL2_MT_CLIENT_HELLO)) {
/*
* SSLv2 style record
*
* |num_recs| here will actually always be 0 because
* |num_recs > 0| only ever occurs when we are processing
* multiple app data records - which we know isn't the case here
* because it is an SSLv2ClientHello. We keep it using
* |num_recs| for the sake of consistency
*/
rr[num_recs].type = SSL3_RT_HANDSHAKE;
rr[num_recs].rec_version = SSL2_VERSION;
rr[num_recs].length = ((p[0] & 0x7f) << 8) | p[1];
if (rr[num_recs].length > SSL3_BUFFER_get_len(rbuf)
- SSL2_RT_HEADER_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_PACKET_LENGTH_TOO_LONG);
goto f_err;
}
if (rr[num_recs].length < MIN_SSL2_RECORD_LEN) {
al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
} else {
/* SSLv3+ style record */
if (s->msg_callback)
s->msg_callback(0, 0, SSL3_RT_HEADER, p, 5, s,
s->msg_callback_arg);
/* Pull apart the header into the SSL3_RECORD */
rr[num_recs].type = *(p++);
ssl_major = *(p++);
ssl_minor = *(p++);
version = (ssl_major << 8) | ssl_minor;
rr[num_recs].rec_version = version;
n2s(p, rr[num_recs].length);
/* Lets check version */
if (!s->first_packet && version != s->version) {
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_WRONG_VERSION_NUMBER);
if ((s->version & 0xFF00) == (version & 0xFF00)
&& !s->enc_write_ctx && !s->write_hash) {
if (rr->type == SSL3_RT_ALERT) {
/*
* The record is using an incorrect version number,
* but what we've got appears to be an alert. We
* haven't read the body yet to check whether its a
* fatal or not - but chances are it is. We probably
* shouldn't send a fatal alert back. We'll just
* end.
*/
goto err;
}
/*
* Send back error using their minor version number :-)
*/
s->version = (unsigned short)version;
}
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
if ((version >> 8) != SSL3_VERSION_MAJOR) {
if (RECORD_LAYER_is_first_record(&s->rlayer)) {
/* Go back to start of packet, look at the five bytes
* that we have. */
p = RECORD_LAYER_get_packet(&s->rlayer);
if (strncmp((char *)p, "GET ", 4) == 0 ||
strncmp((char *)p, "POST ", 5) == 0 ||
strncmp((char *)p, "HEAD ", 5) == 0 ||
strncmp((char *)p, "PUT ", 4) == 0) {
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_HTTP_REQUEST);
goto err;
} else if (strncmp((char *)p, "CONNE", 5) == 0) {
SSLerr(SSL_F_SSL3_GET_RECORD,
SSL_R_HTTPS_PROXY_REQUEST);
goto err;
}
/* Doesn't look like TLS - don't send an alert */
SSLerr(SSL_F_SSL3_GET_RECORD,
SSL_R_WRONG_VERSION_NUMBER);
goto err;
} else {
SSLerr(SSL_F_SSL3_GET_RECORD,
SSL_R_WRONG_VERSION_NUMBER);
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
}
if (rr[num_recs].length >
SSL3_BUFFER_get_len(rbuf) - SSL3_RT_HEADER_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_PACKET_LENGTH_TOO_LONG);
goto f_err;
}
}
/* now s->rlayer.rstate == SSL_ST_READ_BODY */
}
/*
* s->rlayer.rstate == SSL_ST_READ_BODY, get and decode the data.
* Calculate how much more data we need to read for the rest of the
* record
*/
if (rr[num_recs].rec_version == SSL2_VERSION) {
i = rr[num_recs].length + SSL2_RT_HEADER_LENGTH
- SSL3_RT_HEADER_LENGTH;
} else {
i = rr[num_recs].length;
}
if (i > 0) {
/* now s->packet_length == SSL3_RT_HEADER_LENGTH */
n = ssl3_read_n(s, i, i, 1, 0);
if (n <= 0)
return (n); /* error or non-blocking io */
}
/* set state for later operations */
RECORD_LAYER_set_rstate(&s->rlayer, SSL_ST_READ_HEADER);
/*
* At this point, s->packet_length == SSL3_RT_HEADER_LENGTH + rr->length,
* or s->packet_length == SSL2_RT_HEADER_LENGTH + rr->length
* and we have that many bytes in s->packet
*/
if (rr[num_recs].rec_version == SSL2_VERSION) {
rr[num_recs].input =
&(RECORD_LAYER_get_packet(&s->rlayer)[SSL2_RT_HEADER_LENGTH]);
} else {
rr[num_recs].input =
&(RECORD_LAYER_get_packet(&s->rlayer)[SSL3_RT_HEADER_LENGTH]);
}
/*
* ok, we can now read from 's->packet' data into 'rr' rr->input points
* at rr->length bytes, which need to be copied into rr->data by either
* the decryption or by the decompression When the data is 'copied' into
* the rr->data buffer, rr->input will be pointed at the new buffer
*/
/*
* We now have - encrypted [ MAC [ compressed [ plain ] ] ] rr->length
* bytes of encrypted compressed stuff.
*/
/* check is not needed I believe */
if (rr[num_recs].length > SSL3_RT_MAX_ENCRYPTED_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_ENCRYPTED_LENGTH_TOO_LONG);
goto f_err;
}
/* decrypt in place in 'rr->input' */
rr[num_recs].data = rr[num_recs].input;
rr[num_recs].orig_len = rr[num_recs].length;
/* Mark this record as not read by upper layers yet */
rr[num_recs].read = 0;
num_recs++;
/* we have pulled in a full packet so zero things */
RECORD_LAYER_reset_packet_length(&s->rlayer);
RECORD_LAYER_clear_first_record(&s->rlayer);
} while (num_recs < max_recs
&& rr[num_recs - 1].type == SSL3_RT_APPLICATION_DATA
&& SSL_USE_EXPLICIT_IV(s)
&& s->enc_read_ctx != NULL
&& (EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(s->enc_read_ctx))
& EVP_CIPH_FLAG_PIPELINE)
&& ssl3_record_app_data_waiting(s));
/*
* If in encrypt-then-mac mode calculate mac from encrypted record. All
* the details below are public so no timing details can leak.
*/
if (SSL_READ_ETM(s) && s->read_hash) {
unsigned char *mac;
mac_size = EVP_MD_CTX_size(s->read_hash);
OPENSSL_assert(mac_size <= EVP_MAX_MD_SIZE);
for (j = 0; j < num_recs; j++) {
if (rr[j].length < mac_size) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
rr[j].length -= mac_size;
mac = rr[j].data + rr[j].length;
i = s->method->ssl3_enc->mac(s, &rr[j], md, 0 /* not send */ );
if (i < 0 || CRYPTO_memcmp(md, mac, (size_t)mac_size) != 0) {
al = SSL_AD_BAD_RECORD_MAC;
SSLerr(SSL_F_SSL3_GET_RECORD,
SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC);
goto f_err;
}
}
}
enc_err = s->method->ssl3_enc->enc(s, rr, num_recs, 0);
/*-
* enc_err is:
* 0: (in non-constant time) if the record is publically invalid.
* 1: if the padding is valid
* -1: if the padding is invalid
*/
if (enc_err == 0) {
al = SSL_AD_DECRYPTION_FAILED;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_BLOCK_CIPHER_PAD_IS_WRONG);
goto f_err;
}
#ifdef SSL_DEBUG
printf("dec %d\n", rr->length);
{
unsigned int z;
for (z = 0; z < rr->length; z++)
printf("%02X%c", rr->data[z], ((z + 1) % 16) ? ' ' : '\n');
}
printf("\n");
#endif
/* r->length is now the compressed data plus mac */
if ((sess != NULL) &&
(s->enc_read_ctx != NULL) &&
(!SSL_READ_ETM(s) && EVP_MD_CTX_md(s->read_hash) != NULL)) {
/* s->read_hash != NULL => mac_size != -1 */
unsigned char *mac = NULL;
unsigned char mac_tmp[EVP_MAX_MD_SIZE];
mac_size = EVP_MD_CTX_size(s->read_hash);
OPENSSL_assert(mac_size <= EVP_MAX_MD_SIZE);
for (j = 0; j < num_recs; j++) {
/*
* orig_len is the length of the record before any padding was
* removed. This is public information, as is the MAC in use,
* therefore we can safely process the record in a different amount
* of time if it's too short to possibly contain a MAC.
*/
if (rr[j].orig_len < mac_size ||
/* CBC records must have a padding length byte too. */
(EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE &&
rr[j].orig_len < mac_size + 1)) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
if (EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE) {
/*
* We update the length so that the TLS header bytes can be
* constructed correctly but we need to extract the MAC in
* constant time from within the record, without leaking the
* contents of the padding bytes.
*/
mac = mac_tmp;
ssl3_cbc_copy_mac(mac_tmp, &rr[j], mac_size);
rr[j].length -= mac_size;
} else {
/*
* In this case there's no padding, so |rec->orig_len| equals
* |rec->length| and we checked that there's enough bytes for
* |mac_size| above.
*/
rr[j].length -= mac_size;
mac = &rr[j].data[rr[j].length];
}
i = s->method->ssl3_enc->mac(s, &rr[j], md, 0 /* not send */ );
if (i < 0 || mac == NULL
|| CRYPTO_memcmp(md, mac, (size_t)mac_size) != 0)
enc_err = -1;
if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH + mac_size)
enc_err = -1;
}
}
if (enc_err < 0) {
/*
* A separate 'decryption_failed' alert was introduced with TLS 1.0,
* SSL 3.0 only has 'bad_record_mac'. But unless a decryption
* failure is directly visible from the ciphertext anyway, we should
* not reveal which kind of error occurred -- this might become
* visible to an attacker (e.g. via a logfile)
*/
al = SSL_AD_BAD_RECORD_MAC;
SSLerr(SSL_F_SSL3_GET_RECORD,
SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC);
goto f_err;
}
for (j = 0; j < num_recs; j++) {
/* rr[j].length is now just compressed */
if (s->expand != NULL) {
if (rr[j].length > SSL3_RT_MAX_COMPRESSED_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_COMPRESSED_LENGTH_TOO_LONG);
goto f_err;
}
if (!ssl3_do_uncompress(s, &rr[j])) {
al = SSL_AD_DECOMPRESSION_FAILURE;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_BAD_DECOMPRESSION);
goto f_err;
}
}
if (rr[j].length > SSL3_RT_MAX_PLAIN_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_DATA_LENGTH_TOO_LONG);
goto f_err;
}
rr[j].off = 0;
/*-
* So at this point the following is true
* rr[j].type is the type of record
* rr[j].length == number of bytes in record
* rr[j].off == offset to first valid byte
* rr[j].data == where to take bytes from, increment after use :-).
*/
/* just read a 0 length packet */
if (rr[j].length == 0) {
RECORD_LAYER_inc_empty_record_count(&s->rlayer);
if (RECORD_LAYER_get_empty_record_count(&s->rlayer)
> MAX_EMPTY_RECORDS) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_RECORD_TOO_SMALL);
goto f_err;
}
} else {
RECORD_LAYER_reset_empty_record_count(&s->rlayer);
}
}
RECORD_LAYER_set_numrpipes(&s->rlayer, num_recs);
return 1;
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
return ret;
} | int ssl3_get_record(SSL *s)
{
int ssl_major, ssl_minor, al;
int enc_err, n, i, ret = -1;
SSL3_RECORD *rr;
SSL3_BUFFER *rbuf;
SSL_SESSION *sess;
unsigned char *p;
unsigned char md[EVP_MAX_MD_SIZE];
short version;
unsigned mac_size;
unsigned int num_recs = 0;
unsigned int max_recs;
unsigned int j;
rr = RECORD_LAYER_get_rrec(&s->rlayer);
rbuf = RECORD_LAYER_get_rbuf(&s->rlayer);
max_recs = s->max_pipelines;
if (max_recs == 0)
max_recs = 1;
sess = s->session;
do {
if ((RECORD_LAYER_get_rstate(&s->rlayer) != SSL_ST_READ_BODY) ||
(RECORD_LAYER_get_packet_length(&s->rlayer)
< SSL3_RT_HEADER_LENGTH)) {
n = ssl3_read_n(s, SSL3_RT_HEADER_LENGTH,
SSL3_BUFFER_get_len(rbuf), 0,
num_recs == 0 ? 1 : 0);
if (n <= 0)
return (n);
RECORD_LAYER_set_rstate(&s->rlayer, SSL_ST_READ_BODY);
p = RECORD_LAYER_get_packet(&s->rlayer);
if (s->server && RECORD_LAYER_is_first_record(&s->rlayer)
&& (p[0] & 0x80) && (p[2] == SSL2_MT_CLIENT_HELLO)) {
rr[num_recs].type = SSL3_RT_HANDSHAKE;
rr[num_recs].rec_version = SSL2_VERSION;
rr[num_recs].length = ((p[0] & 0x7f) << 8) | p[1];
if (rr[num_recs].length > SSL3_BUFFER_get_len(rbuf)
- SSL2_RT_HEADER_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_PACKET_LENGTH_TOO_LONG);
goto f_err;
}
if (rr[num_recs].length < MIN_SSL2_RECORD_LEN) {
al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
} else {
if (s->msg_callback)
s->msg_callback(0, 0, SSL3_RT_HEADER, p, 5, s,
s->msg_callback_arg);
rr[num_recs].type = *(p++);
ssl_major = *(p++);
ssl_minor = *(p++);
version = (ssl_major << 8) | ssl_minor;
rr[num_recs].rec_version = version;
n2s(p, rr[num_recs].length);
if (!s->first_packet && version != s->version) {
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_WRONG_VERSION_NUMBER);
if ((s->version & 0xFF00) == (version & 0xFF00)
&& !s->enc_write_ctx && !s->write_hash) {
if (rr->type == SSL3_RT_ALERT) {
goto err;
}
s->version = (unsigned short)version;
}
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
if ((version >> 8) != SSL3_VERSION_MAJOR) {
if (RECORD_LAYER_is_first_record(&s->rlayer)) {
p = RECORD_LAYER_get_packet(&s->rlayer);
if (strncmp((char *)p, "GET ", 4) == 0 ||
strncmp((char *)p, "POST ", 5) == 0 ||
strncmp((char *)p, "HEAD ", 5) == 0 ||
strncmp((char *)p, "PUT ", 4) == 0) {
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_HTTP_REQUEST);
goto err;
} else if (strncmp((char *)p, "CONNE", 5) == 0) {
SSLerr(SSL_F_SSL3_GET_RECORD,
SSL_R_HTTPS_PROXY_REQUEST);
goto err;
}
SSLerr(SSL_F_SSL3_GET_RECORD,
SSL_R_WRONG_VERSION_NUMBER);
goto err;
} else {
SSLerr(SSL_F_SSL3_GET_RECORD,
SSL_R_WRONG_VERSION_NUMBER);
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
}
if (rr[num_recs].length >
SSL3_BUFFER_get_len(rbuf) - SSL3_RT_HEADER_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_PACKET_LENGTH_TOO_LONG);
goto f_err;
}
}
}
if (rr[num_recs].rec_version == SSL2_VERSION) {
i = rr[num_recs].length + SSL2_RT_HEADER_LENGTH
- SSL3_RT_HEADER_LENGTH;
} else {
i = rr[num_recs].length;
}
if (i > 0) {
n = ssl3_read_n(s, i, i, 1, 0);
if (n <= 0)
return (n);
}
RECORD_LAYER_set_rstate(&s->rlayer, SSL_ST_READ_HEADER);
if (rr[num_recs].rec_version == SSL2_VERSION) {
rr[num_recs].input =
&(RECORD_LAYER_get_packet(&s->rlayer)[SSL2_RT_HEADER_LENGTH]);
} else {
rr[num_recs].input =
&(RECORD_LAYER_get_packet(&s->rlayer)[SSL3_RT_HEADER_LENGTH]);
}
if (rr[num_recs].length > SSL3_RT_MAX_ENCRYPTED_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_ENCRYPTED_LENGTH_TOO_LONG);
goto f_err;
}
rr[num_recs].data = rr[num_recs].input;
rr[num_recs].orig_len = rr[num_recs].length;
rr[num_recs].read = 0;
num_recs++;
RECORD_LAYER_reset_packet_length(&s->rlayer);
RECORD_LAYER_clear_first_record(&s->rlayer);
} while (num_recs < max_recs
&& rr[num_recs - 1].type == SSL3_RT_APPLICATION_DATA
&& SSL_USE_EXPLICIT_IV(s)
&& s->enc_read_ctx != NULL
&& (EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(s->enc_read_ctx))
& EVP_CIPH_FLAG_PIPELINE)
&& ssl3_record_app_data_waiting(s));
if (SSL_READ_ETM(s) && s->read_hash) {
unsigned char *mac;
mac_size = EVP_MD_CTX_size(s->read_hash);
OPENSSL_assert(mac_size <= EVP_MAX_MD_SIZE);
for (j = 0; j < num_recs; j++) {
if (rr[j].length < mac_size) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
rr[j].length -= mac_size;
mac = rr[j].data + rr[j].length;
i = s->method->ssl3_enc->mac(s, &rr[j], md, 0 );
if (i < 0 || CRYPTO_memcmp(md, mac, (size_t)mac_size) != 0) {
al = SSL_AD_BAD_RECORD_MAC;
SSLerr(SSL_F_SSL3_GET_RECORD,
SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC);
goto f_err;
}
}
}
enc_err = s->method->ssl3_enc->enc(s, rr, num_recs, 0);
if (enc_err == 0) {
al = SSL_AD_DECRYPTION_FAILED;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_BLOCK_CIPHER_PAD_IS_WRONG);
goto f_err;
}
#ifdef SSL_DEBUG
printf("dec %d\n", rr->length);
{
unsigned int z;
for (z = 0; z < rr->length; z++)
printf("%02X%c", rr->data[z], ((z + 1) % 16) ? ' ' : '\n');
}
printf("\n");
#endif
if ((sess != NULL) &&
(s->enc_read_ctx != NULL) &&
(!SSL_READ_ETM(s) && EVP_MD_CTX_md(s->read_hash) != NULL)) {
unsigned char *mac = NULL;
unsigned char mac_tmp[EVP_MAX_MD_SIZE];
mac_size = EVP_MD_CTX_size(s->read_hash);
OPENSSL_assert(mac_size <= EVP_MAX_MD_SIZE);
for (j = 0; j < num_recs; j++) {
if (rr[j].orig_len < mac_size ||
(EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE &&
rr[j].orig_len < mac_size + 1)) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
if (EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE) {
mac = mac_tmp;
ssl3_cbc_copy_mac(mac_tmp, &rr[j], mac_size);
rr[j].length -= mac_size;
} else {
rr[j].length -= mac_size;
mac = &rr[j].data[rr[j].length];
}
i = s->method->ssl3_enc->mac(s, &rr[j], md, 0 );
if (i < 0 || mac == NULL
|| CRYPTO_memcmp(md, mac, (size_t)mac_size) != 0)
enc_err = -1;
if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH + mac_size)
enc_err = -1;
}
}
if (enc_err < 0) {
al = SSL_AD_BAD_RECORD_MAC;
SSLerr(SSL_F_SSL3_GET_RECORD,
SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC);
goto f_err;
}
for (j = 0; j < num_recs; j++) {
if (s->expand != NULL) {
if (rr[j].length > SSL3_RT_MAX_COMPRESSED_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_COMPRESSED_LENGTH_TOO_LONG);
goto f_err;
}
if (!ssl3_do_uncompress(s, &rr[j])) {
al = SSL_AD_DECOMPRESSION_FAILURE;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_BAD_DECOMPRESSION);
goto f_err;
}
}
if (rr[j].length > SSL3_RT_MAX_PLAIN_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_DATA_LENGTH_TOO_LONG);
goto f_err;
}
rr[j].off = 0;
if (rr[j].length == 0) {
RECORD_LAYER_inc_empty_record_count(&s->rlayer);
if (RECORD_LAYER_get_empty_record_count(&s->rlayer)
> MAX_EMPTY_RECORDS) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_RECORD_TOO_SMALL);
goto f_err;
}
} else {
RECORD_LAYER_reset_empty_record_count(&s->rlayer);
}
}
RECORD_LAYER_set_numrpipes(&s->rlayer, num_recs);
return 1;
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
return ret;
} | 367,549 |
0 | int ssl3_cbc_remove_padding(SSL3_RECORD *rec,
unsigned block_size, unsigned mac_size)
{
unsigned padding_length, good;
const unsigned overhead = 1 /* padding length byte */ + mac_size;
/*
* These lengths are all public so we can test them in non-constant time.
*/
if (overhead > rec->length)
return 0;
padding_length = rec->data[rec->length - 1];
good = constant_time_ge(rec->length, padding_length + overhead);
/* SSLv3 requires that the padding is minimal. */
good &= constant_time_ge(block_size, padding_length + 1);
rec->length -= good & (padding_length + 1);
return constant_time_select_int(good, 1, -1);
} | int ssl3_cbc_remove_padding(SSL3_RECORD *rec,
unsigned block_size, unsigned mac_size)
{
unsigned padding_length, good;
const unsigned overhead = 1 + mac_size;
if (overhead > rec->length)
return 0;
padding_length = rec->data[rec->length - 1];
good = constant_time_ge(rec->length, padding_length + overhead);
good &= constant_time_ge(block_size, padding_length + 1);
rec->length -= good & (padding_length + 1);
return constant_time_select_int(good, 1, -1);
} | 367,550 |
0 | static int tls1_PRF(SSL *s,
const void *seed1, int seed1_len,
const void *seed2, int seed2_len,
const void *seed3, int seed3_len,
const void *seed4, int seed4_len,
const void *seed5, int seed5_len,
const unsigned char *sec, int slen,
unsigned char *out, int olen)
{
const EVP_MD *md = ssl_prf_md(s);
EVP_PKEY_CTX *pctx = NULL;
int ret = 0;
size_t outlen = olen;
if (md == NULL) {
/* Should never happen */
SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
return 0;
}
pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_TLS1_PRF, NULL);
if (pctx == NULL || EVP_PKEY_derive_init(pctx) <= 0
|| EVP_PKEY_CTX_set_tls1_prf_md(pctx, md) <= 0
|| EVP_PKEY_CTX_set1_tls1_prf_secret(pctx, sec, slen) <= 0)
goto err;
if (EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed1, seed1_len) <= 0)
goto err;
if (EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed2, seed2_len) <= 0)
goto err;
if (EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed3, seed3_len) <= 0)
goto err;
if (EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed4, seed4_len) <= 0)
goto err;
if (EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed5, seed5_len) <= 0)
goto err;
if (EVP_PKEY_derive(pctx, out, &outlen) <= 0)
goto err;
ret = 1;
err:
EVP_PKEY_CTX_free(pctx);
return ret;
} | static int tls1_PRF(SSL *s,
const void *seed1, int seed1_len,
const void *seed2, int seed2_len,
const void *seed3, int seed3_len,
const void *seed4, int seed4_len,
const void *seed5, int seed5_len,
const unsigned char *sec, int slen,
unsigned char *out, int olen)
{
const EVP_MD *md = ssl_prf_md(s);
EVP_PKEY_CTX *pctx = NULL;
int ret = 0;
size_t outlen = olen;
if (md == NULL) {
SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
return 0;
}
pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_TLS1_PRF, NULL);
if (pctx == NULL || EVP_PKEY_derive_init(pctx) <= 0
|| EVP_PKEY_CTX_set_tls1_prf_md(pctx, md) <= 0
|| EVP_PKEY_CTX_set1_tls1_prf_secret(pctx, sec, slen) <= 0)
goto err;
if (EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed1, seed1_len) <= 0)
goto err;
if (EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed2, seed2_len) <= 0)
goto err;
if (EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed3, seed3_len) <= 0)
goto err;
if (EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed4, seed4_len) <= 0)
goto err;
if (EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed5, seed5_len) <= 0)
goto err;
if (EVP_PKEY_derive(pctx, out, &outlen) <= 0)
goto err;
ret = 1;
err:
EVP_PKEY_CTX_free(pctx);
return ret;
} | 367,551 |
0 | size_t tls12_get_psigalgs(SSL *s, int sent, const unsigned char **psigs)
{
/*
* If Suite B mode use Suite B sigalgs only, ignore any other
* preferences.
*/
#ifndef OPENSSL_NO_EC
switch (tls1_suiteb(s)) {
case SSL_CERT_FLAG_SUITEB_128_LOS:
*psigs = suiteb_sigalgs;
return sizeof(suiteb_sigalgs);
case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY:
*psigs = suiteb_sigalgs;
return 2;
case SSL_CERT_FLAG_SUITEB_192_LOS:
*psigs = suiteb_sigalgs + 2;
return 2;
}
#endif
/* If server use client authentication sigalgs if not NULL */
if (s->server == sent && s->cert->client_sigalgs) {
*psigs = s->cert->client_sigalgs;
return s->cert->client_sigalgslen;
} else if (s->cert->conf_sigalgs) {
*psigs = s->cert->conf_sigalgs;
return s->cert->conf_sigalgslen;
} else {
*psigs = tls12_sigalgs;
return sizeof(tls12_sigalgs);
}
} | size_t tls12_get_psigalgs(SSL *s, int sent, const unsigned char **psigs)
{
#ifndef OPENSSL_NO_EC
switch (tls1_suiteb(s)) {
case SSL_CERT_FLAG_SUITEB_128_LOS:
*psigs = suiteb_sigalgs;
return sizeof(suiteb_sigalgs);
case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY:
*psigs = suiteb_sigalgs;
return 2;
case SSL_CERT_FLAG_SUITEB_192_LOS:
*psigs = suiteb_sigalgs + 2;
return 2;
}
#endif
if (s->server == sent && s->cert->client_sigalgs) {
*psigs = s->cert->client_sigalgs;
return s->cert->client_sigalgslen;
} else if (s->cert->conf_sigalgs) {
*psigs = s->cert->conf_sigalgs;
return s->cert->conf_sigalgslen;
} else {
*psigs = tls12_sigalgs;
return sizeof(tls12_sigalgs);
}
} | 367,553 |
0 | static int tls1_set_ec_id(unsigned char *curve_id, unsigned char *comp_id,
EC_KEY *ec)
{
int id;
const EC_GROUP *grp;
if (!ec)
return 0;
/* Determine if it is a prime field */
grp = EC_KEY_get0_group(ec);
if (!grp)
return 0;
/* Determine curve ID */
id = EC_GROUP_get_curve_name(grp);
id = tls1_ec_nid2curve_id(id);
/* If no id return error: we don't support arbitrary explicit curves */
if (id == 0)
return 0;
curve_id[0] = 0;
curve_id[1] = (unsigned char)id;
if (comp_id) {
if (EC_KEY_get0_public_key(ec) == NULL)
return 0;
if (EC_KEY_get_conv_form(ec) == POINT_CONVERSION_UNCOMPRESSED) {
*comp_id = TLSEXT_ECPOINTFORMAT_uncompressed;
} else {
if ((nid_list[id - 1].flags & TLS_CURVE_TYPE) == TLS_CURVE_PRIME)
*comp_id = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime;
else
*comp_id = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2;
}
}
return 1;
} | static int tls1_set_ec_id(unsigned char *curve_id, unsigned char *comp_id,
EC_KEY *ec)
{
int id;
const EC_GROUP *grp;
if (!ec)
return 0;
grp = EC_KEY_get0_group(ec);
if (!grp)
return 0;
id = EC_GROUP_get_curve_name(grp);
id = tls1_ec_nid2curve_id(id);
if (id == 0)
return 0;
curve_id[0] = 0;
curve_id[1] = (unsigned char)id;
if (comp_id) {
if (EC_KEY_get0_public_key(ec) == NULL)
return 0;
if (EC_KEY_get_conv_form(ec) == POINT_CONVERSION_UNCOMPRESSED) {
*comp_id = TLSEXT_ECPOINTFORMAT_uncompressed;
} else {
if ((nid_list[id - 1].flags & TLS_CURVE_TYPE) == TLS_CURVE_PRIME)
*comp_id = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime;
else
*comp_id = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2;
}
}
return 1;
} | 367,555 |
0 | int tls1_check_curve(SSL *s, const unsigned char *p, size_t len)
{
const unsigned char *curves;
size_t num_curves, i;
unsigned int suiteb_flags = tls1_suiteb(s);
if (len != 3 || p[0] != NAMED_CURVE_TYPE)
return 0;
/* Check curve matches Suite B preferences */
if (suiteb_flags) {
unsigned long cid = s->s3->tmp.new_cipher->id;
if (p[1])
return 0;
if (cid == TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256) {
if (p[2] != TLSEXT_curve_P_256)
return 0;
} else if (cid == TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384) {
if (p[2] != TLSEXT_curve_P_384)
return 0;
} else /* Should never happen */
return 0;
}
if (!tls1_get_curvelist(s, 0, &curves, &num_curves))
return 0;
for (i = 0; i < num_curves; i++, curves += 2) {
if (p[1] == curves[0] && p[2] == curves[1])
return tls_curve_allowed(s, p + 1, SSL_SECOP_CURVE_CHECK);
}
return 0;
} | int tls1_check_curve(SSL *s, const unsigned char *p, size_t len)
{
const unsigned char *curves;
size_t num_curves, i;
unsigned int suiteb_flags = tls1_suiteb(s);
if (len != 3 || p[0] != NAMED_CURVE_TYPE)
return 0;
if (suiteb_flags) {
unsigned long cid = s->s3->tmp.new_cipher->id;
if (p[1])
return 0;
if (cid == TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256) {
if (p[2] != TLSEXT_curve_P_256)
return 0;
} else if (cid == TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384) {
if (p[2] != TLSEXT_curve_P_384)
return 0;
} else
return 0;
}
if (!tls1_get_curvelist(s, 0, &curves, &num_curves))
return 0;
for (i = 0; i < num_curves; i++, curves += 2) {
if (p[1] == curves[0] && p[2] == curves[1])
return tls_curve_allowed(s, p + 1, SSL_SECOP_CURVE_CHECK);
}
return 0;
} | 367,556 |
0 | static void ssl_check_for_safari(SSL *s, const PACKET *pkt)
{
unsigned int type;
PACKET sni, tmppkt;
size_t ext_len;
static const unsigned char kSafariExtensionsBlock[] = {
0x00, 0x0a, /* elliptic_curves extension */
0x00, 0x08, /* 8 bytes */
0x00, 0x06, /* 6 bytes of curve ids */
0x00, 0x17, /* P-256 */
0x00, 0x18, /* P-384 */
0x00, 0x19, /* P-521 */
0x00, 0x0b, /* ec_point_formats */
0x00, 0x02, /* 2 bytes */
0x01, /* 1 point format */
0x00, /* uncompressed */
/* The following is only present in TLS 1.2 */
0x00, 0x0d, /* signature_algorithms */
0x00, 0x0c, /* 12 bytes */
0x00, 0x0a, /* 10 bytes */
0x05, 0x01, /* SHA-384/RSA */
0x04, 0x01, /* SHA-256/RSA */
0x02, 0x01, /* SHA-1/RSA */
0x04, 0x03, /* SHA-256/ECDSA */
0x02, 0x03, /* SHA-1/ECDSA */
};
/* Length of the common prefix (first two extensions). */
static const size_t kSafariCommonExtensionsLength = 18;
tmppkt = *pkt;
if (!PACKET_forward(&tmppkt, 2)
|| !PACKET_get_net_2(&tmppkt, &type)
|| !PACKET_get_length_prefixed_2(&tmppkt, &sni)) {
return;
}
if (type != TLSEXT_TYPE_server_name)
return;
ext_len = TLS1_get_client_version(s) >= TLS1_2_VERSION ?
sizeof(kSafariExtensionsBlock) : kSafariCommonExtensionsLength;
s->s3->is_probably_safari = PACKET_equal(&tmppkt, kSafariExtensionsBlock,
ext_len);
} | static void ssl_check_for_safari(SSL *s, const PACKET *pkt)
{
unsigned int type;
PACKET sni, tmppkt;
size_t ext_len;
static const unsigned char kSafariExtensionsBlock[] = {
0x00, 0x0a,
0x00, 0x08,
0x00, 0x06,
0x00, 0x17,
0x00, 0x18,
0x00, 0x19,
0x00, 0x0b,
0x00, 0x02,
0x01,
0x00,
0x00, 0x0d,
0x00, 0x0c,
0x00, 0x0a,
0x05, 0x01,
0x04, 0x01,
0x02, 0x01,
0x04, 0x03,
0x02, 0x03,
};
static const size_t kSafariCommonExtensionsLength = 18;
tmppkt = *pkt;
if (!PACKET_forward(&tmppkt, 2)
|| !PACKET_get_net_2(&tmppkt, &type)
|| !PACKET_get_length_prefixed_2(&tmppkt, &sni)) {
return;
}
if (type != TLSEXT_TYPE_server_name)
return;
ext_len = TLS1_get_client_version(s) >= TLS1_2_VERSION ?
sizeof(kSafariExtensionsBlock) : kSafariCommonExtensionsLength;
s->s3->is_probably_safari = PACKET_equal(&tmppkt, kSafariExtensionsBlock,
ext_len);
} | 367,557 |
0 | static int tls_curve_allowed(SSL *s, const unsigned char *curve, int op)
{
const tls_curve_info *cinfo;
if (curve[0])
return 1;
if ((curve[1] < 1) || ((size_t)curve[1] > OSSL_NELEM(nid_list)))
return 0;
cinfo = &nid_list[curve[1] - 1];
# ifdef OPENSSL_NO_EC2M
if (cinfo->flags & TLS_CURVE_CHAR2)
return 0;
# endif
return ssl_security(s, op, cinfo->secbits, cinfo->nid, (void *)curve);
} | static int tls_curve_allowed(SSL *s, const unsigned char *curve, int op)
{
const tls_curve_info *cinfo;
if (curve[0])
return 1;
if ((curve[1] < 1) || ((size_t)curve[1] > OSSL_NELEM(nid_list)))
return 0;
cinfo = &nid_list[curve[1] - 1];
# ifdef OPENSSL_NO_EC2M
if (cinfo->flags & TLS_CURVE_CHAR2)
return 0;
# endif
return ssl_security(s, op, cinfo->secbits, cinfo->nid, (void *)curve);
} | 367,558 |
0 | int tls1_process_sigalgs(SSL *s)
{
int idx;
size_t i;
const EVP_MD *md;
const EVP_MD **pmd = s->s3->tmp.md;
uint32_t *pvalid = s->s3->tmp.valid_flags;
CERT *c = s->cert;
TLS_SIGALGS *sigptr;
if (!tls1_set_shared_sigalgs(s))
return 0;
for (i = 0, sigptr = c->shared_sigalgs;
i < c->shared_sigalgslen; i++, sigptr++) {
idx = tls12_get_pkey_idx(sigptr->rsign);
if (idx > 0 && pmd[idx] == NULL) {
md = tls12_get_hash(sigptr->rhash);
pmd[idx] = md;
pvalid[idx] = CERT_PKEY_EXPLICIT_SIGN;
if (idx == SSL_PKEY_RSA_SIGN) {
pvalid[SSL_PKEY_RSA_ENC] = CERT_PKEY_EXPLICIT_SIGN;
pmd[SSL_PKEY_RSA_ENC] = md;
}
}
}
/*
* In strict mode leave unset digests as NULL to indicate we can't use
* the certificate for signing.
*/
if (!(s->cert->cert_flags & SSL_CERT_FLAGS_CHECK_TLS_STRICT)) {
/*
* Set any remaining keys to default values. NOTE: if alg is not
* supported it stays as NULL.
*/
#ifndef OPENSSL_NO_DSA
if (pmd[SSL_PKEY_DSA_SIGN] == NULL)
pmd[SSL_PKEY_DSA_SIGN] = EVP_sha1();
#endif
#ifndef OPENSSL_NO_RSA
if (pmd[SSL_PKEY_RSA_SIGN] == NULL) {
pmd[SSL_PKEY_RSA_SIGN] = EVP_sha1();
pmd[SSL_PKEY_RSA_ENC] = EVP_sha1();
}
#endif
#ifndef OPENSSL_NO_EC
if (pmd[SSL_PKEY_ECC] == NULL)
pmd[SSL_PKEY_ECC] = EVP_sha1();
#endif
#ifndef OPENSSL_NO_GOST
if (pmd[SSL_PKEY_GOST01] == NULL)
pmd[SSL_PKEY_GOST01] = EVP_get_digestbynid(NID_id_GostR3411_94);
if (pmd[SSL_PKEY_GOST12_256] == NULL)
pmd[SSL_PKEY_GOST12_256] =
EVP_get_digestbynid(NID_id_GostR3411_2012_256);
if (pmd[SSL_PKEY_GOST12_512] == NULL)
pmd[SSL_PKEY_GOST12_512] =
EVP_get_digestbynid(NID_id_GostR3411_2012_512);
#endif
}
return 1;
} | int tls1_process_sigalgs(SSL *s)
{
int idx;
size_t i;
const EVP_MD *md;
const EVP_MD **pmd = s->s3->tmp.md;
uint32_t *pvalid = s->s3->tmp.valid_flags;
CERT *c = s->cert;
TLS_SIGALGS *sigptr;
if (!tls1_set_shared_sigalgs(s))
return 0;
for (i = 0, sigptr = c->shared_sigalgs;
i < c->shared_sigalgslen; i++, sigptr++) {
idx = tls12_get_pkey_idx(sigptr->rsign);
if (idx > 0 && pmd[idx] == NULL) {
md = tls12_get_hash(sigptr->rhash);
pmd[idx] = md;
pvalid[idx] = CERT_PKEY_EXPLICIT_SIGN;
if (idx == SSL_PKEY_RSA_SIGN) {
pvalid[SSL_PKEY_RSA_ENC] = CERT_PKEY_EXPLICIT_SIGN;
pmd[SSL_PKEY_RSA_ENC] = md;
}
}
}
if (!(s->cert->cert_flags & SSL_CERT_FLAGS_CHECK_TLS_STRICT)) {
#ifndef OPENSSL_NO_DSA
if (pmd[SSL_PKEY_DSA_SIGN] == NULL)
pmd[SSL_PKEY_DSA_SIGN] = EVP_sha1();
#endif
#ifndef OPENSSL_NO_RSA
if (pmd[SSL_PKEY_RSA_SIGN] == NULL) {
pmd[SSL_PKEY_RSA_SIGN] = EVP_sha1();
pmd[SSL_PKEY_RSA_ENC] = EVP_sha1();
}
#endif
#ifndef OPENSSL_NO_EC
if (pmd[SSL_PKEY_ECC] == NULL)
pmd[SSL_PKEY_ECC] = EVP_sha1();
#endif
#ifndef OPENSSL_NO_GOST
if (pmd[SSL_PKEY_GOST01] == NULL)
pmd[SSL_PKEY_GOST01] = EVP_get_digestbynid(NID_id_GostR3411_94);
if (pmd[SSL_PKEY_GOST12_256] == NULL)
pmd[SSL_PKEY_GOST12_256] =
EVP_get_digestbynid(NID_id_GostR3411_2012_256);
if (pmd[SSL_PKEY_GOST12_512] == NULL)
pmd[SSL_PKEY_GOST12_512] =
EVP_get_digestbynid(NID_id_GostR3411_2012_512);
#endif
}
return 1;
} | 367,559 |
0 | static int tls1_check_cert_param(SSL *s, X509 *x, int set_ee_md)
{
unsigned char comp_id, curve_id[2];
EVP_PKEY *pkey;
int rv;
pkey = X509_get0_pubkey(x);
if (!pkey)
return 0;
/* If not EC nothing to do */
if (EVP_PKEY_id(pkey) != EVP_PKEY_EC)
return 1;
rv = tls1_set_ec_id(curve_id, &comp_id, EVP_PKEY_get0_EC_KEY(pkey));
if (!rv)
return 0;
/*
* Can't check curve_id for client certs as we don't have a supported
* curves extension.
*/
rv = tls1_check_ec_key(s, s->server ? curve_id : NULL, &comp_id);
if (!rv)
return 0;
/*
* Special case for suite B. We *MUST* sign using SHA256+P-256 or
* SHA384+P-384, adjust digest if necessary.
*/
if (set_ee_md && tls1_suiteb(s)) {
int check_md;
size_t i;
CERT *c = s->cert;
if (curve_id[0])
return 0;
/* Check to see we have necessary signing algorithm */
if (curve_id[1] == TLSEXT_curve_P_256)
check_md = NID_ecdsa_with_SHA256;
else if (curve_id[1] == TLSEXT_curve_P_384)
check_md = NID_ecdsa_with_SHA384;
else
return 0; /* Should never happen */
for (i = 0; i < c->shared_sigalgslen; i++)
if (check_md == c->shared_sigalgs[i].signandhash_nid)
break;
if (i == c->shared_sigalgslen)
return 0;
if (set_ee_md == 2) {
if (check_md == NID_ecdsa_with_SHA256)
s->s3->tmp.md[SSL_PKEY_ECC] = EVP_sha256();
else
s->s3->tmp.md[SSL_PKEY_ECC] = EVP_sha384();
}
}
return rv;
} | static int tls1_check_cert_param(SSL *s, X509 *x, int set_ee_md)
{
unsigned char comp_id, curve_id[2];
EVP_PKEY *pkey;
int rv;
pkey = X509_get0_pubkey(x);
if (!pkey)
return 0;
if (EVP_PKEY_id(pkey) != EVP_PKEY_EC)
return 1;
rv = tls1_set_ec_id(curve_id, &comp_id, EVP_PKEY_get0_EC_KEY(pkey));
if (!rv)
return 0;
rv = tls1_check_ec_key(s, s->server ? curve_id : NULL, &comp_id);
if (!rv)
return 0;
if (set_ee_md && tls1_suiteb(s)) {
int check_md;
size_t i;
CERT *c = s->cert;
if (curve_id[0])
return 0;
if (curve_id[1] == TLSEXT_curve_P_256)
check_md = NID_ecdsa_with_SHA256;
else if (curve_id[1] == TLSEXT_curve_P_384)
check_md = NID_ecdsa_with_SHA384;
else
return 0;
for (i = 0; i < c->shared_sigalgslen; i++)
if (check_md == c->shared_sigalgs[i].signandhash_nid)
break;
if (i == c->shared_sigalgslen)
return 0;
if (set_ee_md == 2) {
if (check_md == NID_ecdsa_with_SHA256)
s->s3->tmp.md[SSL_PKEY_ECC] = EVP_sha256();
else
s->s3->tmp.md[SSL_PKEY_ECC] = EVP_sha384();
}
}
return rv;
} | 367,560 |
0 | int tls1_shared_curve(SSL *s, int nmatch)
{
const unsigned char *pref, *supp;
size_t num_pref, num_supp, i, j;
int k;
/* Can't do anything on client side */
if (s->server == 0)
return -1;
if (nmatch == -2) {
if (tls1_suiteb(s)) {
/*
* For Suite B ciphersuite determines curve: we already know
* these are acceptable due to previous checks.
*/
unsigned long cid = s->s3->tmp.new_cipher->id;
if (cid == TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256)
return NID_X9_62_prime256v1; /* P-256 */
if (cid == TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384)
return NID_secp384r1; /* P-384 */
/* Should never happen */
return NID_undef;
}
/* If not Suite B just return first preference shared curve */
nmatch = 0;
}
/*
* Avoid truncation. tls1_get_curvelist takes an int
* but s->options is a long...
*/
if (!tls1_get_curvelist(s,
(s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) != 0,
&supp, &num_supp))
/* In practice, NID_undef == 0 but let's be precise. */
return nmatch == -1 ? 0 : NID_undef;
if (!tls1_get_curvelist(s,
(s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) == 0,
&pref, &num_pref))
return nmatch == -1 ? 0 : NID_undef;
for (k = 0, i = 0; i < num_pref; i++, pref += 2) {
const unsigned char *tsupp = supp;
for (j = 0; j < num_supp; j++, tsupp += 2) {
if (pref[0] == tsupp[0] && pref[1] == tsupp[1]) {
if (!tls_curve_allowed(s, pref, SSL_SECOP_CURVE_SHARED))
continue;
if (nmatch == k) {
int id = (pref[0] << 8) | pref[1];
return tls1_ec_curve_id2nid(id, NULL);
}
k++;
}
}
}
if (nmatch == -1)
return k;
/* Out of range (nmatch > k). */
return NID_undef;
} | int tls1_shared_curve(SSL *s, int nmatch)
{
const unsigned char *pref, *supp;
size_t num_pref, num_supp, i, j;
int k;
if (s->server == 0)
return -1;
if (nmatch == -2) {
if (tls1_suiteb(s)) {
unsigned long cid = s->s3->tmp.new_cipher->id;
if (cid == TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256)
return NID_X9_62_prime256v1;
if (cid == TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384)
return NID_secp384r1;
return NID_undef;
}
nmatch = 0;
}
if (!tls1_get_curvelist(s,
(s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) != 0,
&supp, &num_supp))
return nmatch == -1 ? 0 : NID_undef;
if (!tls1_get_curvelist(s,
(s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) == 0,
&pref, &num_pref))
return nmatch == -1 ? 0 : NID_undef;
for (k = 0, i = 0; i < num_pref; i++, pref += 2) {
const unsigned char *tsupp = supp;
for (j = 0; j < num_supp; j++, tsupp += 2) {
if (pref[0] == tsupp[0] && pref[1] == tsupp[1]) {
if (!tls_curve_allowed(s, pref, SSL_SECOP_CURVE_SHARED))
continue;
if (nmatch == k) {
int id = (pref[0] << 8) | pref[1];
return tls1_ec_curve_id2nid(id, NULL);
}
k++;
}
}
}
if (nmatch == -1)
return k;
return NID_undef;
} | 367,561 |
0 | static int tls1_alpn_handle_client_hello_late(SSL *s, int *al)
{
const unsigned char *selected = NULL;
unsigned char selected_len = 0;
if (s->ctx->alpn_select_cb != NULL && s->s3->alpn_proposed != NULL) {
int r = s->ctx->alpn_select_cb(s, &selected, &selected_len,
s->s3->alpn_proposed,
s->s3->alpn_proposed_len,
s->ctx->alpn_select_cb_arg);
if (r == SSL_TLSEXT_ERR_OK) {
OPENSSL_free(s->s3->alpn_selected);
s->s3->alpn_selected = OPENSSL_memdup(selected, selected_len);
if (s->s3->alpn_selected == NULL) {
*al = SSL_AD_INTERNAL_ERROR;
return 0;
}
s->s3->alpn_selected_len = selected_len;
#ifndef OPENSSL_NO_NEXTPROTONEG
/* ALPN takes precedence over NPN. */
s->s3->next_proto_neg_seen = 0;
#endif
} else {
*al = SSL_AD_NO_APPLICATION_PROTOCOL;
return 0;
}
}
return 1;
} | static int tls1_alpn_handle_client_hello_late(SSL *s, int *al)
{
const unsigned char *selected = NULL;
unsigned char selected_len = 0;
if (s->ctx->alpn_select_cb != NULL && s->s3->alpn_proposed != NULL) {
int r = s->ctx->alpn_select_cb(s, &selected, &selected_len,
s->s3->alpn_proposed,
s->s3->alpn_proposed_len,
s->ctx->alpn_select_cb_arg);
if (r == SSL_TLSEXT_ERR_OK) {
OPENSSL_free(s->s3->alpn_selected);
s->s3->alpn_selected = OPENSSL_memdup(selected, selected_len);
if (s->s3->alpn_selected == NULL) {
*al = SSL_AD_INTERNAL_ERROR;
return 0;
}
s->s3->alpn_selected_len = selected_len;
#ifndef OPENSSL_NO_NEXTPROTONEG
s->s3->next_proto_neg_seen = 0;
#endif
} else {
*al = SSL_AD_NO_APPLICATION_PROTOCOL;
return 0;
}
}
return 1;
} | 367,562 |
0 | int tls1_ec_nid2curve_id(int nid)
{
size_t i;
for (i = 0; i < OSSL_NELEM(nid_list); i++) {
if (nid_list[i].nid == nid)
return i + 1;
}
return 0;
} | int tls1_ec_nid2curve_id(int nid)
{
size_t i;
for (i = 0; i < OSSL_NELEM(nid_list); i++) {
if (nid_list[i].nid == nid)
return i + 1;
}
return 0;
} | 367,563 |
0 | int dtls1_process_record(SSL *s, DTLS1_BITMAP *bitmap)
{
int i, al;
int enc_err;
SSL_SESSION *sess;
SSL3_RECORD *rr;
unsigned int mac_size;
unsigned char md[EVP_MAX_MD_SIZE];
rr = RECORD_LAYER_get_rrec(&s->rlayer);
sess = s->session;
/*
* At this point, s->packet_length == SSL3_RT_HEADER_LNGTH + rr->length,
* and we have that many bytes in s->packet
*/
rr->input = &(RECORD_LAYER_get_packet(&s->rlayer)[DTLS1_RT_HEADER_LENGTH]);
/*
* ok, we can now read from 's->packet' data into 'rr' rr->input points
* at rr->length bytes, which need to be copied into rr->data by either
* the decryption or by the decompression When the data is 'copied' into
* the rr->data buffer, rr->input will be pointed at the new buffer
*/
/*
* We now have - encrypted [ MAC [ compressed [ plain ] ] ] rr->length
* bytes of encrypted compressed stuff.
*/
/* check is not needed I believe */
if (rr->length > SSL3_RT_MAX_ENCRYPTED_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_DTLS1_PROCESS_RECORD, SSL_R_ENCRYPTED_LENGTH_TOO_LONG);
goto f_err;
}
/* decrypt in place in 'rr->input' */
rr->data = rr->input;
rr->orig_len = rr->length;
enc_err = s->method->ssl3_enc->enc(s, rr, 1, 0);
/*-
* enc_err is:
* 0: (in non-constant time) if the record is publically invalid.
* 1: if the padding is valid
* -1: if the padding is invalid
*/
if (enc_err == 0) {
/* For DTLS we simply ignore bad packets. */
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto err;
}
#ifdef SSL_DEBUG
printf("dec %d\n", rr->length);
{
unsigned int z;
for (z = 0; z < rr->length; z++)
printf("%02X%c", rr->data[z], ((z + 1) % 16) ? ' ' : '\n');
}
printf("\n");
#endif
/* r->length is now the compressed data plus mac */
if ((sess != NULL) &&
(s->enc_read_ctx != NULL) && (EVP_MD_CTX_md(s->read_hash) != NULL)) {
/* s->read_hash != NULL => mac_size != -1 */
unsigned char *mac = NULL;
unsigned char mac_tmp[EVP_MAX_MD_SIZE];
mac_size = EVP_MD_CTX_size(s->read_hash);
OPENSSL_assert(mac_size <= EVP_MAX_MD_SIZE);
/*
* orig_len is the length of the record before any padding was
* removed. This is public information, as is the MAC in use,
* therefore we can safely process the record in a different amount
* of time if it's too short to possibly contain a MAC.
*/
if (rr->orig_len < mac_size ||
/* CBC records must have a padding length byte too. */
(EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE &&
rr->orig_len < mac_size + 1)) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_DTLS1_PROCESS_RECORD, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
if (EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE) {
/*
* We update the length so that the TLS header bytes can be
* constructed correctly but we need to extract the MAC in
* constant time from within the record, without leaking the
* contents of the padding bytes.
*/
mac = mac_tmp;
ssl3_cbc_copy_mac(mac_tmp, rr, mac_size);
rr->length -= mac_size;
} else {
/*
* In this case there's no padding, so |rec->orig_len| equals
* |rec->length| and we checked that there's enough bytes for
* |mac_size| above.
*/
rr->length -= mac_size;
mac = &rr->data[rr->length];
}
i = s->method->ssl3_enc->mac(s, rr, md, 0 /* not send */ );
if (i < 0 || mac == NULL
|| CRYPTO_memcmp(md, mac, (size_t)mac_size) != 0)
enc_err = -1;
if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH + mac_size)
enc_err = -1;
}
if (enc_err < 0) {
/* decryption failed, silently discard message */
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto err;
}
/* r->length is now just compressed */
if (s->expand != NULL) {
if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_DTLS1_PROCESS_RECORD,
SSL_R_COMPRESSED_LENGTH_TOO_LONG);
goto f_err;
}
if (!ssl3_do_uncompress(s, rr)) {
al = SSL_AD_DECOMPRESSION_FAILURE;
SSLerr(SSL_F_DTLS1_PROCESS_RECORD, SSL_R_BAD_DECOMPRESSION);
goto f_err;
}
}
if (rr->length > SSL3_RT_MAX_PLAIN_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_DTLS1_PROCESS_RECORD, SSL_R_DATA_LENGTH_TOO_LONG);
goto f_err;
}
rr->off = 0;
/*-
* So at this point the following is true
* ssl->s3->rrec.type is the type of record
* ssl->s3->rrec.length == number of bytes in record
* ssl->s3->rrec.off == offset to first valid byte
* ssl->s3->rrec.data == where to take bytes from, increment
* after use :-).
*/
/* we have pulled in a full packet so zero things */
RECORD_LAYER_reset_packet_length(&s->rlayer);
/* Mark receipt of record. */
dtls1_record_bitmap_update(s, bitmap);
return (1);
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
return (0);
} | int dtls1_process_record(SSL *s, DTLS1_BITMAP *bitmap)
{
int i, al;
int enc_err;
SSL_SESSION *sess;
SSL3_RECORD *rr;
unsigned int mac_size;
unsigned char md[EVP_MAX_MD_SIZE];
rr = RECORD_LAYER_get_rrec(&s->rlayer);
sess = s->session;
rr->input = &(RECORD_LAYER_get_packet(&s->rlayer)[DTLS1_RT_HEADER_LENGTH]);
if (rr->length > SSL3_RT_MAX_ENCRYPTED_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_DTLS1_PROCESS_RECORD, SSL_R_ENCRYPTED_LENGTH_TOO_LONG);
goto f_err;
}
rr->data = rr->input;
rr->orig_len = rr->length;
enc_err = s->method->ssl3_enc->enc(s, rr, 1, 0);
if (enc_err == 0) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto err;
}
#ifdef SSL_DEBUG
printf("dec %d\n", rr->length);
{
unsigned int z;
for (z = 0; z < rr->length; z++)
printf("%02X%c", rr->data[z], ((z + 1) % 16) ? ' ' : '\n');
}
printf("\n");
#endif
if ((sess != NULL) &&
(s->enc_read_ctx != NULL) && (EVP_MD_CTX_md(s->read_hash) != NULL)) {
unsigned char *mac = NULL;
unsigned char mac_tmp[EVP_MAX_MD_SIZE];
mac_size = EVP_MD_CTX_size(s->read_hash);
OPENSSL_assert(mac_size <= EVP_MAX_MD_SIZE);
if (rr->orig_len < mac_size ||
(EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE &&
rr->orig_len < mac_size + 1)) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_DTLS1_PROCESS_RECORD, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
if (EVP_CIPHER_CTX_mode(s->enc_read_ctx) == EVP_CIPH_CBC_MODE) {
mac = mac_tmp;
ssl3_cbc_copy_mac(mac_tmp, rr, mac_size);
rr->length -= mac_size;
} else {
rr->length -= mac_size;
mac = &rr->data[rr->length];
}
i = s->method->ssl3_enc->mac(s, rr, md, 0 );
if (i < 0 || mac == NULL
|| CRYPTO_memcmp(md, mac, (size_t)mac_size) != 0)
enc_err = -1;
if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH + mac_size)
enc_err = -1;
}
if (enc_err < 0) {
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
goto err;
}
if (s->expand != NULL) {
if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_DTLS1_PROCESS_RECORD,
SSL_R_COMPRESSED_LENGTH_TOO_LONG);
goto f_err;
}
if (!ssl3_do_uncompress(s, rr)) {
al = SSL_AD_DECOMPRESSION_FAILURE;
SSLerr(SSL_F_DTLS1_PROCESS_RECORD, SSL_R_BAD_DECOMPRESSION);
goto f_err;
}
}
if (rr->length > SSL3_RT_MAX_PLAIN_LENGTH) {
al = SSL_AD_RECORD_OVERFLOW;
SSLerr(SSL_F_DTLS1_PROCESS_RECORD, SSL_R_DATA_LENGTH_TOO_LONG);
goto f_err;
}
rr->off = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
dtls1_record_bitmap_update(s, bitmap);
return (1);
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
return (0);
} | 367,564 |
0 | int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize)
{
CERT *c = s->cert;
/* Extension ignored for inappropriate versions */
if (!SSL_USE_SIGALGS(s))
return 1;
/* Should never happen */
if (!c)
return 0;
OPENSSL_free(s->s3->tmp.peer_sigalgs);
s->s3->tmp.peer_sigalgs = OPENSSL_malloc(dsize);
if (s->s3->tmp.peer_sigalgs == NULL)
return 0;
s->s3->tmp.peer_sigalgslen = dsize;
memcpy(s->s3->tmp.peer_sigalgs, data, dsize);
return 1;
} | int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize)
{
CERT *c = s->cert;
if (!SSL_USE_SIGALGS(s))
return 1;
if (!c)
return 0;
OPENSSL_free(s->s3->tmp.peer_sigalgs);
s->s3->tmp.peer_sigalgs = OPENSSL_malloc(dsize);
if (s->s3->tmp.peer_sigalgs == NULL)
return 0;
s->s3->tmp.peer_sigalgslen = dsize;
memcpy(s->s3->tmp.peer_sigalgs, data, dsize);
return 1;
} | 367,565 |
0 | int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
unsigned int len)
{
int i;
SSL3_BUFFER *wb = s->rlayer.wbuf;
unsigned int currbuf = 0;
/* XXXX */
if ((s->rlayer.wpend_tot > (int)len)
|| ((s->rlayer.wpend_buf != buf) &&
!(s->mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER))
|| (s->rlayer.wpend_type != type)) {
SSLerr(SSL_F_SSL3_WRITE_PENDING, SSL_R_BAD_WRITE_RETRY);
return (-1);
}
for (;;) {
/* Loop until we find a buffer we haven't written out yet */
if (SSL3_BUFFER_get_left(&wb[currbuf]) == 0
&& currbuf < s->rlayer.numwpipes - 1) {
currbuf++;
continue;
}
clear_sys_error();
if (s->wbio != NULL) {
s->rwstate = SSL_WRITING;
i = BIO_write(s->wbio, (char *)
&(SSL3_BUFFER_get_buf(&wb[currbuf])
[SSL3_BUFFER_get_offset(&wb[currbuf])]),
(unsigned int)SSL3_BUFFER_get_left(&wb[currbuf]));
} else {
SSLerr(SSL_F_SSL3_WRITE_PENDING, SSL_R_BIO_NOT_SET);
i = -1;
}
if (i == SSL3_BUFFER_get_left(&wb[currbuf])) {
SSL3_BUFFER_set_left(&wb[currbuf], 0);
SSL3_BUFFER_add_offset(&wb[currbuf], i);
if (currbuf + 1 < s->rlayer.numwpipes)
continue;
s->rwstate = SSL_NOTHING;
return (s->rlayer.wpend_ret);
} else if (i <= 0) {
if (SSL_IS_DTLS(s)) {
/*
* For DTLS, just drop it. That's kind of the whole point in
* using a datagram service
*/
SSL3_BUFFER_set_left(&wb[currbuf], 0);
}
return i;
}
SSL3_BUFFER_add_offset(&wb[currbuf], i);
SSL3_BUFFER_add_left(&wb[currbuf], -i);
}
} | int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
unsigned int len)
{
int i;
SSL3_BUFFER *wb = s->rlayer.wbuf;
unsigned int currbuf = 0;
if ((s->rlayer.wpend_tot > (int)len)
|| ((s->rlayer.wpend_buf != buf) &&
!(s->mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER))
|| (s->rlayer.wpend_type != type)) {
SSLerr(SSL_F_SSL3_WRITE_PENDING, SSL_R_BAD_WRITE_RETRY);
return (-1);
}
for (;;) {
if (SSL3_BUFFER_get_left(&wb[currbuf]) == 0
&& currbuf < s->rlayer.numwpipes - 1) {
currbuf++;
continue;
}
clear_sys_error();
if (s->wbio != NULL) {
s->rwstate = SSL_WRITING;
i = BIO_write(s->wbio, (char *)
&(SSL3_BUFFER_get_buf(&wb[currbuf])
[SSL3_BUFFER_get_offset(&wb[currbuf])]),
(unsigned int)SSL3_BUFFER_get_left(&wb[currbuf]));
} else {
SSLerr(SSL_F_SSL3_WRITE_PENDING, SSL_R_BIO_NOT_SET);
i = -1;
}
if (i == SSL3_BUFFER_get_left(&wb[currbuf])) {
SSL3_BUFFER_set_left(&wb[currbuf], 0);
SSL3_BUFFER_add_offset(&wb[currbuf], i);
if (currbuf + 1 < s->rlayer.numwpipes)
continue;
s->rwstate = SSL_NOTHING;
return (s->rlayer.wpend_ret);
} else if (i <= 0) {
if (SSL_IS_DTLS(s)) {
SSL3_BUFFER_set_left(&wb[currbuf], 0);
}
return i;
}
SSL3_BUFFER_add_offset(&wb[currbuf], i);
SSL3_BUFFER_add_left(&wb[currbuf], -i);
}
} | 367,567 |
0 | int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk, const EVP_MD *md)
{
int sig_id, md_id;
if (!md)
return 0;
md_id = tls12_find_id(EVP_MD_type(md), tls12_md, OSSL_NELEM(tls12_md));
if (md_id == -1)
return 0;
sig_id = tls12_get_sigid(pk);
if (sig_id == -1)
return 0;
p[0] = (unsigned char)md_id;
p[1] = (unsigned char)sig_id;
return 1;
} | int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk, const EVP_MD *md)
{
int sig_id, md_id;
if (!md)
return 0;
md_id = tls12_find_id(EVP_MD_type(md), tls12_md, OSSL_NELEM(tls12_md));
if (md_id == -1)
return 0;
sig_id = tls12_get_sigid(pk);
if (sig_id == -1)
return 0;
p[0] = (unsigned char)md_id;
p[1] = (unsigned char)sig_id;
return 1;
} | 367,568 |
0 | int ssl_check_serverhello_tlsext(SSL *s)
{
int ret = SSL_TLSEXT_ERR_NOACK;
int al = SSL_AD_UNRECOGNIZED_NAME;
#ifndef OPENSSL_NO_EC
/*
* If we are client and using an elliptic curve cryptography cipher
* suite, then if server returns an EC point formats lists extension it
* must contain uncompressed.
*/
unsigned long alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
unsigned long alg_a = s->s3->tmp.new_cipher->algorithm_auth;
if ((s->tlsext_ecpointformatlist != NULL)
&& (s->tlsext_ecpointformatlist_length > 0)
&& (s->session->tlsext_ecpointformatlist != NULL)
&& (s->session->tlsext_ecpointformatlist_length > 0)
&& ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA))) {
/* we are using an ECC cipher */
size_t i;
unsigned char *list;
int found_uncompressed = 0;
list = s->session->tlsext_ecpointformatlist;
for (i = 0; i < s->session->tlsext_ecpointformatlist_length; i++) {
if (*(list++) == TLSEXT_ECPOINTFORMAT_uncompressed) {
found_uncompressed = 1;
break;
}
}
if (!found_uncompressed) {
SSLerr(SSL_F_SSL_CHECK_SERVERHELLO_TLSEXT,
SSL_R_TLS_INVALID_ECPOINTFORMAT_LIST);
return -1;
}
}
ret = SSL_TLSEXT_ERR_OK;
#endif /* OPENSSL_NO_EC */
if (s->ctx != NULL && s->ctx->tlsext_servername_callback != 0)
ret =
s->ctx->tlsext_servername_callback(s, &al,
s->ctx->tlsext_servername_arg);
else if (s->session_ctx != NULL
&& s->session_ctx->tlsext_servername_callback != 0)
ret =
s->session_ctx->tlsext_servername_callback(s, &al,
s->
session_ctx->tlsext_servername_arg);
/*
* Ensure we get sensible values passed to tlsext_status_cb in the event
* that we don't receive a status message
*/
OPENSSL_free(s->tlsext_ocsp_resp);
s->tlsext_ocsp_resp = NULL;
s->tlsext_ocsp_resplen = -1;
switch (ret) {
case SSL_TLSEXT_ERR_ALERT_FATAL:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
return -1;
case SSL_TLSEXT_ERR_ALERT_WARNING:
ssl3_send_alert(s, SSL3_AL_WARNING, al);
return 1;
case SSL_TLSEXT_ERR_NOACK:
s->servername_done = 0;
default:
return 1;
}
} | int ssl_check_serverhello_tlsext(SSL *s)
{
int ret = SSL_TLSEXT_ERR_NOACK;
int al = SSL_AD_UNRECOGNIZED_NAME;
#ifndef OPENSSL_NO_EC
unsigned long alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
unsigned long alg_a = s->s3->tmp.new_cipher->algorithm_auth;
if ((s->tlsext_ecpointformatlist != NULL)
&& (s->tlsext_ecpointformatlist_length > 0)
&& (s->session->tlsext_ecpointformatlist != NULL)
&& (s->session->tlsext_ecpointformatlist_length > 0)
&& ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA))) {
size_t i;
unsigned char *list;
int found_uncompressed = 0;
list = s->session->tlsext_ecpointformatlist;
for (i = 0; i < s->session->tlsext_ecpointformatlist_length; i++) {
if (*(list++) == TLSEXT_ECPOINTFORMAT_uncompressed) {
found_uncompressed = 1;
break;
}
}
if (!found_uncompressed) {
SSLerr(SSL_F_SSL_CHECK_SERVERHELLO_TLSEXT,
SSL_R_TLS_INVALID_ECPOINTFORMAT_LIST);
return -1;
}
}
ret = SSL_TLSEXT_ERR_OK;
#endif
if (s->ctx != NULL && s->ctx->tlsext_servername_callback != 0)
ret =
s->ctx->tlsext_servername_callback(s, &al,
s->ctx->tlsext_servername_arg);
else if (s->session_ctx != NULL
&& s->session_ctx->tlsext_servername_callback != 0)
ret =
s->session_ctx->tlsext_servername_callback(s, &al,
s->
session_ctx->tlsext_servername_arg);
OPENSSL_free(s->tlsext_ocsp_resp);
s->tlsext_ocsp_resp = NULL;
s->tlsext_ocsp_resplen = -1;
switch (ret) {
case SSL_TLSEXT_ERR_ALERT_FATAL:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
return -1;
case SSL_TLSEXT_ERR_ALERT_WARNING:
ssl3_send_alert(s, SSL3_AL_WARNING, al);
return 1;
case SSL_TLSEXT_ERR_NOACK:
s->servername_done = 0;
default:
return 1;
}
} | 367,569 |
0 | int tls1_alert_code(int code)
{
switch (code) {
case SSL_AD_CLOSE_NOTIFY:
return (SSL3_AD_CLOSE_NOTIFY);
case SSL_AD_UNEXPECTED_MESSAGE:
return (SSL3_AD_UNEXPECTED_MESSAGE);
case SSL_AD_BAD_RECORD_MAC:
return (SSL3_AD_BAD_RECORD_MAC);
case SSL_AD_DECRYPTION_FAILED:
return (TLS1_AD_DECRYPTION_FAILED);
case SSL_AD_RECORD_OVERFLOW:
return (TLS1_AD_RECORD_OVERFLOW);
case SSL_AD_DECOMPRESSION_FAILURE:
return (SSL3_AD_DECOMPRESSION_FAILURE);
case SSL_AD_HANDSHAKE_FAILURE:
return (SSL3_AD_HANDSHAKE_FAILURE);
case SSL_AD_NO_CERTIFICATE:
return (-1);
case SSL_AD_BAD_CERTIFICATE:
return (SSL3_AD_BAD_CERTIFICATE);
case SSL_AD_UNSUPPORTED_CERTIFICATE:
return (SSL3_AD_UNSUPPORTED_CERTIFICATE);
case SSL_AD_CERTIFICATE_REVOKED:
return (SSL3_AD_CERTIFICATE_REVOKED);
case SSL_AD_CERTIFICATE_EXPIRED:
return (SSL3_AD_CERTIFICATE_EXPIRED);
case SSL_AD_CERTIFICATE_UNKNOWN:
return (SSL3_AD_CERTIFICATE_UNKNOWN);
case SSL_AD_ILLEGAL_PARAMETER:
return (SSL3_AD_ILLEGAL_PARAMETER);
case SSL_AD_UNKNOWN_CA:
return (TLS1_AD_UNKNOWN_CA);
case SSL_AD_ACCESS_DENIED:
return (TLS1_AD_ACCESS_DENIED);
case SSL_AD_DECODE_ERROR:
return (TLS1_AD_DECODE_ERROR);
case SSL_AD_DECRYPT_ERROR:
return (TLS1_AD_DECRYPT_ERROR);
case SSL_AD_EXPORT_RESTRICTION:
return (TLS1_AD_EXPORT_RESTRICTION);
case SSL_AD_PROTOCOL_VERSION:
return (TLS1_AD_PROTOCOL_VERSION);
case SSL_AD_INSUFFICIENT_SECURITY:
return (TLS1_AD_INSUFFICIENT_SECURITY);
case SSL_AD_INTERNAL_ERROR:
return (TLS1_AD_INTERNAL_ERROR);
case SSL_AD_USER_CANCELLED:
return (TLS1_AD_USER_CANCELLED);
case SSL_AD_NO_RENEGOTIATION:
return (TLS1_AD_NO_RENEGOTIATION);
case SSL_AD_UNSUPPORTED_EXTENSION:
return (TLS1_AD_UNSUPPORTED_EXTENSION);
case SSL_AD_CERTIFICATE_UNOBTAINABLE:
return (TLS1_AD_CERTIFICATE_UNOBTAINABLE);
case SSL_AD_UNRECOGNIZED_NAME:
return (TLS1_AD_UNRECOGNIZED_NAME);
case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE:
return (TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE);
case SSL_AD_BAD_CERTIFICATE_HASH_VALUE:
return (TLS1_AD_BAD_CERTIFICATE_HASH_VALUE);
case SSL_AD_UNKNOWN_PSK_IDENTITY:
return (TLS1_AD_UNKNOWN_PSK_IDENTITY);
case SSL_AD_INAPPROPRIATE_FALLBACK:
return (TLS1_AD_INAPPROPRIATE_FALLBACK);
case SSL_AD_NO_APPLICATION_PROTOCOL:
return (TLS1_AD_NO_APPLICATION_PROTOCOL);
default:
return (-1);
}
} | int tls1_alert_code(int code)
{
switch (code) {
case SSL_AD_CLOSE_NOTIFY:
return (SSL3_AD_CLOSE_NOTIFY);
case SSL_AD_UNEXPECTED_MESSAGE:
return (SSL3_AD_UNEXPECTED_MESSAGE);
case SSL_AD_BAD_RECORD_MAC:
return (SSL3_AD_BAD_RECORD_MAC);
case SSL_AD_DECRYPTION_FAILED:
return (TLS1_AD_DECRYPTION_FAILED);
case SSL_AD_RECORD_OVERFLOW:
return (TLS1_AD_RECORD_OVERFLOW);
case SSL_AD_DECOMPRESSION_FAILURE:
return (SSL3_AD_DECOMPRESSION_FAILURE);
case SSL_AD_HANDSHAKE_FAILURE:
return (SSL3_AD_HANDSHAKE_FAILURE);
case SSL_AD_NO_CERTIFICATE:
return (-1);
case SSL_AD_BAD_CERTIFICATE:
return (SSL3_AD_BAD_CERTIFICATE);
case SSL_AD_UNSUPPORTED_CERTIFICATE:
return (SSL3_AD_UNSUPPORTED_CERTIFICATE);
case SSL_AD_CERTIFICATE_REVOKED:
return (SSL3_AD_CERTIFICATE_REVOKED);
case SSL_AD_CERTIFICATE_EXPIRED:
return (SSL3_AD_CERTIFICATE_EXPIRED);
case SSL_AD_CERTIFICATE_UNKNOWN:
return (SSL3_AD_CERTIFICATE_UNKNOWN);
case SSL_AD_ILLEGAL_PARAMETER:
return (SSL3_AD_ILLEGAL_PARAMETER);
case SSL_AD_UNKNOWN_CA:
return (TLS1_AD_UNKNOWN_CA);
case SSL_AD_ACCESS_DENIED:
return (TLS1_AD_ACCESS_DENIED);
case SSL_AD_DECODE_ERROR:
return (TLS1_AD_DECODE_ERROR);
case SSL_AD_DECRYPT_ERROR:
return (TLS1_AD_DECRYPT_ERROR);
case SSL_AD_EXPORT_RESTRICTION:
return (TLS1_AD_EXPORT_RESTRICTION);
case SSL_AD_PROTOCOL_VERSION:
return (TLS1_AD_PROTOCOL_VERSION);
case SSL_AD_INSUFFICIENT_SECURITY:
return (TLS1_AD_INSUFFICIENT_SECURITY);
case SSL_AD_INTERNAL_ERROR:
return (TLS1_AD_INTERNAL_ERROR);
case SSL_AD_USER_CANCELLED:
return (TLS1_AD_USER_CANCELLED);
case SSL_AD_NO_RENEGOTIATION:
return (TLS1_AD_NO_RENEGOTIATION);
case SSL_AD_UNSUPPORTED_EXTENSION:
return (TLS1_AD_UNSUPPORTED_EXTENSION);
case SSL_AD_CERTIFICATE_UNOBTAINABLE:
return (TLS1_AD_CERTIFICATE_UNOBTAINABLE);
case SSL_AD_UNRECOGNIZED_NAME:
return (TLS1_AD_UNRECOGNIZED_NAME);
case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE:
return (TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE);
case SSL_AD_BAD_CERTIFICATE_HASH_VALUE:
return (TLS1_AD_BAD_CERTIFICATE_HASH_VALUE);
case SSL_AD_UNKNOWN_PSK_IDENTITY:
return (TLS1_AD_UNKNOWN_PSK_IDENTITY);
case SSL_AD_INAPPROPRIATE_FALLBACK:
return (TLS1_AD_INAPPROPRIATE_FALLBACK);
case SSL_AD_NO_APPLICATION_PROTOCOL:
return (TLS1_AD_NO_APPLICATION_PROTOCOL);
default:
return (-1);
}
} | 367,574 |
0 | static int tls12_get_pkey_idx(unsigned char sig_alg)
{
switch (sig_alg) {
#ifndef OPENSSL_NO_RSA
case TLSEXT_signature_rsa:
return SSL_PKEY_RSA_SIGN;
#endif
#ifndef OPENSSL_NO_DSA
case TLSEXT_signature_dsa:
return SSL_PKEY_DSA_SIGN;
#endif
#ifndef OPENSSL_NO_EC
case TLSEXT_signature_ecdsa:
return SSL_PKEY_ECC;
#endif
#ifndef OPENSSL_NO_GOST
case TLSEXT_signature_gostr34102001:
return SSL_PKEY_GOST01;
case TLSEXT_signature_gostr34102012_256:
return SSL_PKEY_GOST12_256;
case TLSEXT_signature_gostr34102012_512:
return SSL_PKEY_GOST12_512;
#endif
}
return -1;
} | static int tls12_get_pkey_idx(unsigned char sig_alg)
{
switch (sig_alg) {
#ifndef OPENSSL_NO_RSA
case TLSEXT_signature_rsa:
return SSL_PKEY_RSA_SIGN;
#endif
#ifndef OPENSSL_NO_DSA
case TLSEXT_signature_dsa:
return SSL_PKEY_DSA_SIGN;
#endif
#ifndef OPENSSL_NO_EC
case TLSEXT_signature_ecdsa:
return SSL_PKEY_ECC;
#endif
#ifndef OPENSSL_NO_GOST
case TLSEXT_signature_gostr34102001:
return SSL_PKEY_GOST01;
case TLSEXT_signature_gostr34102012_256:
return SSL_PKEY_GOST12_256;
case TLSEXT_signature_gostr34102012_512:
return SSL_PKEY_GOST12_512;
#endif
}
return -1;
} | 367,575 |
0 | int tls1_set_sigalgs(CERT *c, const int *psig_nids, size_t salglen, int client)
{
unsigned char *sigalgs, *sptr;
int rhash, rsign;
size_t i;
if (salglen & 1)
return 0;
sigalgs = OPENSSL_malloc(salglen);
if (sigalgs == NULL)
return 0;
for (i = 0, sptr = sigalgs; i < salglen; i += 2) {
rhash = tls12_find_id(*psig_nids++, tls12_md, OSSL_NELEM(tls12_md));
rsign = tls12_find_id(*psig_nids++, tls12_sig, OSSL_NELEM(tls12_sig));
if (rhash == -1 || rsign == -1)
goto err;
*sptr++ = rhash;
*sptr++ = rsign;
}
if (client) {
OPENSSL_free(c->client_sigalgs);
c->client_sigalgs = sigalgs;
c->client_sigalgslen = salglen;
} else {
OPENSSL_free(c->conf_sigalgs);
c->conf_sigalgs = sigalgs;
c->conf_sigalgslen = salglen;
}
return 1;
err:
OPENSSL_free(sigalgs);
return 0;
} | int tls1_set_sigalgs(CERT *c, const int *psig_nids, size_t salglen, int client)
{
unsigned char *sigalgs, *sptr;
int rhash, rsign;
size_t i;
if (salglen & 1)
return 0;
sigalgs = OPENSSL_malloc(salglen);
if (sigalgs == NULL)
return 0;
for (i = 0, sptr = sigalgs; i < salglen; i += 2) {
rhash = tls12_find_id(*psig_nids++, tls12_md, OSSL_NELEM(tls12_md));
rsign = tls12_find_id(*psig_nids++, tls12_sig, OSSL_NELEM(tls12_sig));
if (rhash == -1 || rsign == -1)
goto err;
*sptr++ = rhash;
*sptr++ = rsign;
}
if (client) {
OPENSSL_free(c->client_sigalgs);
c->client_sigalgs = sigalgs;
c->client_sigalgslen = salglen;
} else {
OPENSSL_free(c->conf_sigalgs);
c->conf_sigalgs = sigalgs;
c->conf_sigalgslen = salglen;
}
return 1;
err:
OPENSSL_free(sigalgs);
return 0;
} | 367,576 |
0 | int ssl3_read_bytes(SSL *s, int type, int *recvd_type, unsigned char *buf,
int len, int peek)
{
int al, i, j, ret;
unsigned int n, curr_rec, num_recs, read_bytes;
SSL3_RECORD *rr;
SSL3_BUFFER *rbuf;
void (*cb) (const SSL *ssl, int type2, int val) = NULL;
rbuf = &s->rlayer.rbuf;
if (!SSL3_BUFFER_is_initialised(rbuf)) {
/* Not initialized yet */
if (!ssl3_setup_read_buffer(s))
return (-1);
}
if ((type && (type != SSL3_RT_APPLICATION_DATA)
&& (type != SSL3_RT_HANDSHAKE)) || (peek
&& (type !=
SSL3_RT_APPLICATION_DATA))) {
SSLerr(SSL_F_SSL3_READ_BYTES, ERR_R_INTERNAL_ERROR);
return -1;
}
if ((type == SSL3_RT_HANDSHAKE) && (s->rlayer.handshake_fragment_len > 0))
/* (partially) satisfy request from storage */
{
unsigned char *src = s->rlayer.handshake_fragment;
unsigned char *dst = buf;
unsigned int k;
/* peek == 0 */
n = 0;
while ((len > 0) && (s->rlayer.handshake_fragment_len > 0)) {
*dst++ = *src++;
len--;
s->rlayer.handshake_fragment_len--;
n++;
}
/* move any remaining fragment bytes: */
for (k = 0; k < s->rlayer.handshake_fragment_len; k++)
s->rlayer.handshake_fragment[k] = *src++;
if (recvd_type != NULL)
*recvd_type = SSL3_RT_HANDSHAKE;
return n;
}
/*
* Now s->rlayer.handshake_fragment_len == 0 if type == SSL3_RT_HANDSHAKE.
*/
if (!ossl_statem_get_in_handshake(s) && SSL_in_init(s)) {
/* type == SSL3_RT_APPLICATION_DATA */
i = s->handshake_func(s);
if (i < 0)
return (i);
if (i == 0) {
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
return (-1);
}
}
start:
s->rwstate = SSL_NOTHING;
/*-
* For each record 'i' up to |num_recs]
* rr[i].type - is the type of record
* rr[i].data, - data
* rr[i].off, - offset into 'data' for next read
* rr[i].length, - number of bytes.
*/
rr = s->rlayer.rrec;
num_recs = RECORD_LAYER_get_numrpipes(&s->rlayer);
do {
/* get new records if necessary */
if (num_recs == 0) {
ret = ssl3_get_record(s);
if (ret <= 0)
return (ret);
num_recs = RECORD_LAYER_get_numrpipes(&s->rlayer);
if (num_recs == 0) {
/* Shouldn't happen */
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_READ_BYTES, ERR_R_INTERNAL_ERROR);
goto f_err;
}
}
/* Skip over any records we have already read */
for (curr_rec = 0;
curr_rec < num_recs && SSL3_RECORD_is_read(&rr[curr_rec]);
curr_rec++) ;
if (curr_rec == num_recs) {
RECORD_LAYER_set_numrpipes(&s->rlayer, 0);
num_recs = 0;
curr_rec = 0;
}
} while (num_recs == 0);
rr = &rr[curr_rec];
/*
* Reset the count of consecutive warning alerts if we've got a non-empty
* record that isn't an alert.
*/
if (SSL3_RECORD_get_type(rr) != SSL3_RT_ALERT
&& SSL3_RECORD_get_length(rr) != 0)
s->rlayer.alert_count = 0;
/* we now have a packet which can be read and processed */
if (s->s3->change_cipher_spec /* set when we receive ChangeCipherSpec,
* reset by ssl3_get_finished */
&& (SSL3_RECORD_get_type(rr) != SSL3_RT_HANDSHAKE)) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_DATA_BETWEEN_CCS_AND_FINISHED);
goto f_err;
}
/*
* If the other end has shut down, throw anything we read away (even in
* 'peek' mode)
*/
if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
SSL3_RECORD_set_length(rr, 0);
s->rwstate = SSL_NOTHING;
return (0);
}
if (type == SSL3_RECORD_get_type(rr)
|| (SSL3_RECORD_get_type(rr) == SSL3_RT_CHANGE_CIPHER_SPEC
&& type == SSL3_RT_HANDSHAKE && recvd_type != NULL)) {
/*
* SSL3_RT_APPLICATION_DATA or
* SSL3_RT_HANDSHAKE or
* SSL3_RT_CHANGE_CIPHER_SPEC
*/
/*
* make sure that we are not getting application data when we are
* doing a handshake for the first time
*/
if (SSL_in_init(s) && (type == SSL3_RT_APPLICATION_DATA) &&
(s->enc_read_ctx == NULL)) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_APP_DATA_IN_HANDSHAKE);
goto f_err;
}
if (type == SSL3_RT_HANDSHAKE
&& SSL3_RECORD_get_type(rr) == SSL3_RT_CHANGE_CIPHER_SPEC
&& s->rlayer.handshake_fragment_len > 0) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_CCS_RECEIVED_EARLY);
goto f_err;
}
if (recvd_type != NULL)
*recvd_type = SSL3_RECORD_get_type(rr);
if (len <= 0)
return (len);
read_bytes = 0;
do {
if ((unsigned int)len - read_bytes > SSL3_RECORD_get_length(rr))
n = SSL3_RECORD_get_length(rr);
else
n = (unsigned int)len - read_bytes;
memcpy(buf, &(rr->data[rr->off]), n);
buf += n;
if (peek) {
/* Mark any zero length record as consumed CVE-2016-6305 */
if (SSL3_RECORD_get_length(rr) == 0)
SSL3_RECORD_set_read(rr);
} else {
SSL3_RECORD_sub_length(rr, n);
SSL3_RECORD_add_off(rr, n);
if (SSL3_RECORD_get_length(rr) == 0) {
s->rlayer.rstate = SSL_ST_READ_HEADER;
SSL3_RECORD_set_off(rr, 0);
SSL3_RECORD_set_read(rr);
}
}
if (SSL3_RECORD_get_length(rr) == 0
|| (peek && n == SSL3_RECORD_get_length(rr))) {
curr_rec++;
rr++;
}
read_bytes += n;
} while (type == SSL3_RT_APPLICATION_DATA && curr_rec < num_recs
&& read_bytes < (unsigned int)len);
if (read_bytes == 0) {
/* We must have read empty records. Get more data */
goto start;
}
if (!peek && curr_rec == num_recs
&& (s->mode & SSL_MODE_RELEASE_BUFFERS)
&& SSL3_BUFFER_get_left(rbuf) == 0)
ssl3_release_read_buffer(s);
return read_bytes;
}
/*
* If we get here, then type != rr->type; if we have a handshake message,
* then it was unexpected (Hello Request or Client Hello) or invalid (we
* were actually expecting a CCS).
*/
/*
* Lets just double check that we've not got an SSLv2 record
*/
if (rr->rec_version == SSL2_VERSION) {
/*
* Should never happen. ssl3_get_record() should only give us an SSLv2
* record back if this is the first packet and we are looking for an
* initial ClientHello. Therefore |type| should always be equal to
* |rr->type|. If not then something has gone horribly wrong
*/
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_READ_BYTES, ERR_R_INTERNAL_ERROR);
goto f_err;
}
if (s->method->version == TLS_ANY_VERSION
&& (s->server || rr->type != SSL3_RT_ALERT)) {
/*
* If we've got this far and still haven't decided on what version
* we're using then this must be a client side alert we're dealing with
* (we don't allow heartbeats yet). We shouldn't be receiving anything
* other than a ClientHello if we are a server.
*/
s->version = rr->rec_version;
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_UNEXPECTED_MESSAGE);
goto f_err;
}
/*
* In case of record types for which we have 'fragment' storage, fill
* that so that we can process the data at a fixed place.
*/
{
unsigned int dest_maxlen = 0;
unsigned char *dest = NULL;
unsigned int *dest_len = NULL;
if (SSL3_RECORD_get_type(rr) == SSL3_RT_HANDSHAKE) {
dest_maxlen = sizeof s->rlayer.handshake_fragment;
dest = s->rlayer.handshake_fragment;
dest_len = &s->rlayer.handshake_fragment_len;
} else if (SSL3_RECORD_get_type(rr) == SSL3_RT_ALERT) {
dest_maxlen = sizeof s->rlayer.alert_fragment;
dest = s->rlayer.alert_fragment;
dest_len = &s->rlayer.alert_fragment_len;
}
if (dest_maxlen > 0) {
n = dest_maxlen - *dest_len; /* available space in 'dest' */
if (SSL3_RECORD_get_length(rr) < n)
n = SSL3_RECORD_get_length(rr); /* available bytes */
/* now move 'n' bytes: */
while (n-- > 0) {
dest[(*dest_len)++] =
SSL3_RECORD_get_data(rr)[SSL3_RECORD_get_off(rr)];
SSL3_RECORD_add_off(rr, 1);
SSL3_RECORD_add_length(rr, -1);
}
if (*dest_len < dest_maxlen) {
SSL3_RECORD_set_read(rr);
goto start; /* fragment was too small */
}
}
}
/*-
* s->rlayer.handshake_fragment_len == 4 iff rr->type == SSL3_RT_HANDSHAKE;
* s->rlayer.alert_fragment_len == 2 iff rr->type == SSL3_RT_ALERT.
* (Possibly rr is 'empty' now, i.e. rr->length may be 0.)
*/
/* If we are a client, check for an incoming 'Hello Request': */
if ((!s->server) &&
(s->rlayer.handshake_fragment_len >= 4) &&
(s->rlayer.handshake_fragment[0] == SSL3_MT_HELLO_REQUEST) &&
(s->session != NULL) && (s->session->cipher != NULL)) {
s->rlayer.handshake_fragment_len = 0;
if ((s->rlayer.handshake_fragment[1] != 0) ||
(s->rlayer.handshake_fragment[2] != 0) ||
(s->rlayer.handshake_fragment[3] != 0)) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_BAD_HELLO_REQUEST);
goto f_err;
}
if (s->msg_callback)
s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE,
s->rlayer.handshake_fragment, 4, s,
s->msg_callback_arg);
if (SSL_is_init_finished(s) &&
!(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS) &&
!s->s3->renegotiate) {
ssl3_renegotiate(s);
if (ssl3_renegotiate_check(s)) {
i = s->handshake_func(s);
if (i < 0)
return (i);
if (i == 0) {
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
return (-1);
}
if (!(s->mode & SSL_MODE_AUTO_RETRY)) {
if (SSL3_BUFFER_get_left(rbuf) == 0) {
/* no read-ahead left? */
BIO *bio;
/*
* In the case where we try to read application data,
* but we trigger an SSL handshake, we return -1 with
* the retry option set. Otherwise renegotiation may
* cause nasty problems in the blocking world
*/
s->rwstate = SSL_READING;
bio = SSL_get_rbio(s);
BIO_clear_retry_flags(bio);
BIO_set_retry_read(bio);
return (-1);
}
}
} else {
SSL3_RECORD_set_read(rr);
}
} else {
/* Does this ever happen? */
SSL3_RECORD_set_read(rr);
}
/*
* we either finished a handshake or ignored the request, now try
* again to obtain the (application) data we were asked for
*/
goto start;
}
/*
* If we are a server and get a client hello when renegotiation isn't
* allowed send back a no renegotiation alert and carry on. WARNING:
* experimental code, needs reviewing (steve)
*/
if (s->server &&
SSL_is_init_finished(s) &&
!s->s3->send_connection_binding &&
(s->version > SSL3_VERSION) &&
(s->rlayer.handshake_fragment_len >= 4) &&
(s->rlayer.handshake_fragment[0] == SSL3_MT_CLIENT_HELLO) &&
(s->session != NULL) && (s->session->cipher != NULL) &&
!(s->ctx->options & SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION)) {
SSL3_RECORD_set_length(rr, 0);
SSL3_RECORD_set_read(rr);
ssl3_send_alert(s, SSL3_AL_WARNING, SSL_AD_NO_RENEGOTIATION);
goto start;
}
if (s->rlayer.alert_fragment_len >= 2) {
int alert_level = s->rlayer.alert_fragment[0];
int alert_descr = s->rlayer.alert_fragment[1];
s->rlayer.alert_fragment_len = 0;
if (s->msg_callback)
s->msg_callback(0, s->version, SSL3_RT_ALERT,
s->rlayer.alert_fragment, 2, s,
s->msg_callback_arg);
if (s->info_callback != NULL)
cb = s->info_callback;
else if (s->ctx->info_callback != NULL)
cb = s->ctx->info_callback;
if (cb != NULL) {
j = (alert_level << 8) | alert_descr;
cb(s, SSL_CB_READ_ALERT, j);
}
if (alert_level == SSL3_AL_WARNING) {
s->s3->warn_alert = alert_descr;
SSL3_RECORD_set_read(rr);
s->rlayer.alert_count++;
if (s->rlayer.alert_count == MAX_WARN_ALERT_COUNT) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_TOO_MANY_WARN_ALERTS);
goto f_err;
}
if (alert_descr == SSL_AD_CLOSE_NOTIFY) {
s->shutdown |= SSL_RECEIVED_SHUTDOWN;
return (0);
}
/*
* This is a warning but we receive it if we requested
* renegotiation and the peer denied it. Terminate with a fatal
* alert because if application tried to renegotiate it
* presumably had a good reason and expects it to succeed. In
* future we might have a renegotiation where we don't care if
* the peer refused it where we carry on.
*/
else if (alert_descr == SSL_AD_NO_RENEGOTIATION) {
al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_NO_RENEGOTIATION);
goto f_err;
}
#ifdef SSL_AD_MISSING_SRP_USERNAME
else if (alert_descr == SSL_AD_MISSING_SRP_USERNAME)
return (0);
#endif
} else if (alert_level == SSL3_AL_FATAL) {
char tmp[16];
s->rwstate = SSL_NOTHING;
s->s3->fatal_alert = alert_descr;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_AD_REASON_OFFSET + alert_descr);
BIO_snprintf(tmp, sizeof tmp, "%d", alert_descr);
ERR_add_error_data(2, "SSL alert number ", tmp);
s->shutdown |= SSL_RECEIVED_SHUTDOWN;
SSL3_RECORD_set_read(rr);
SSL_CTX_remove_session(s->session_ctx, s->session);
return (0);
} else {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_UNKNOWN_ALERT_TYPE);
goto f_err;
}
goto start;
}
if (s->shutdown & SSL_SENT_SHUTDOWN) { /* but we have not received a
* shutdown */
s->rwstate = SSL_NOTHING;
SSL3_RECORD_set_length(rr, 0);
SSL3_RECORD_set_read(rr);
return (0);
}
if (SSL3_RECORD_get_type(rr) == SSL3_RT_CHANGE_CIPHER_SPEC) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_CCS_RECEIVED_EARLY);
goto f_err;
}
/*
* Unexpected handshake message (Client Hello, or protocol violation)
*/
if ((s->rlayer.handshake_fragment_len >= 4)
&& !ossl_statem_get_in_handshake(s)) {
if (SSL_is_init_finished(s) &&
!(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS)) {
ossl_statem_set_in_init(s, 1);
s->renegotiate = 1;
s->new_session = 1;
}
i = s->handshake_func(s);
if (i < 0)
return (i);
if (i == 0) {
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
return (-1);
}
if (!(s->mode & SSL_MODE_AUTO_RETRY)) {
if (SSL3_BUFFER_get_left(rbuf) == 0) {
/* no read-ahead left? */
BIO *bio;
/*
* In the case where we try to read application data, but we
* trigger an SSL handshake, we return -1 with the retry
* option set. Otherwise renegotiation may cause nasty
* problems in the blocking world
*/
s->rwstate = SSL_READING;
bio = SSL_get_rbio(s);
BIO_clear_retry_flags(bio);
BIO_set_retry_read(bio);
return (-1);
}
}
goto start;
}
switch (SSL3_RECORD_get_type(rr)) {
default:
/*
* TLS 1.0 and 1.1 say you SHOULD ignore unrecognised record types, but
* TLS 1.2 says you MUST send an unexpected message alert. We use the
* TLS 1.2 behaviour for all protocol versions to prevent issues where
* no progress is being made and the peer continually sends unrecognised
* record types, using up resources processing them.
*/
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_UNEXPECTED_RECORD);
goto f_err;
case SSL3_RT_CHANGE_CIPHER_SPEC:
case SSL3_RT_ALERT:
case SSL3_RT_HANDSHAKE:
/*
* we already handled all of these, with the possible exception of
* SSL3_RT_HANDSHAKE when ossl_statem_get_in_handshake(s) is true, but
* that should not happen when type != rr->type
*/
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, ERR_R_INTERNAL_ERROR);
goto f_err;
case SSL3_RT_APPLICATION_DATA:
/*
* At this point, we were expecting handshake data, but have
* application data. If the library was running inside ssl3_read()
* (i.e. in_read_app_data is set) and it makes sense to read
* application data at this point (session renegotiation not yet
* started), we will indulge it.
*/
if (ossl_statem_app_data_allowed(s)) {
s->s3->in_read_app_data = 2;
return (-1);
} else {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_UNEXPECTED_RECORD);
goto f_err;
}
}
/* not reached */
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
return (-1);
} | int ssl3_read_bytes(SSL *s, int type, int *recvd_type, unsigned char *buf,
int len, int peek)
{
int al, i, j, ret;
unsigned int n, curr_rec, num_recs, read_bytes;
SSL3_RECORD *rr;
SSL3_BUFFER *rbuf;
void (*cb) (const SSL *ssl, int type2, int val) = NULL;
rbuf = &s->rlayer.rbuf;
if (!SSL3_BUFFER_is_initialised(rbuf)) {
if (!ssl3_setup_read_buffer(s))
return (-1);
}
if ((type && (type != SSL3_RT_APPLICATION_DATA)
&& (type != SSL3_RT_HANDSHAKE)) || (peek
&& (type !=
SSL3_RT_APPLICATION_DATA))) {
SSLerr(SSL_F_SSL3_READ_BYTES, ERR_R_INTERNAL_ERROR);
return -1;
}
if ((type == SSL3_RT_HANDSHAKE) && (s->rlayer.handshake_fragment_len > 0))
{
unsigned char *src = s->rlayer.handshake_fragment;
unsigned char *dst = buf;
unsigned int k;
n = 0;
while ((len > 0) && (s->rlayer.handshake_fragment_len > 0)) {
*dst++ = *src++;
len--;
s->rlayer.handshake_fragment_len--;
n++;
}
for (k = 0; k < s->rlayer.handshake_fragment_len; k++)
s->rlayer.handshake_fragment[k] = *src++;
if (recvd_type != NULL)
*recvd_type = SSL3_RT_HANDSHAKE;
return n;
}
if (!ossl_statem_get_in_handshake(s) && SSL_in_init(s)) {
i = s->handshake_func(s);
if (i < 0)
return (i);
if (i == 0) {
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
return (-1);
}
}
start:
s->rwstate = SSL_NOTHING;
rr = s->rlayer.rrec;
num_recs = RECORD_LAYER_get_numrpipes(&s->rlayer);
do {
if (num_recs == 0) {
ret = ssl3_get_record(s);
if (ret <= 0)
return (ret);
num_recs = RECORD_LAYER_get_numrpipes(&s->rlayer);
if (num_recs == 0) {
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_READ_BYTES, ERR_R_INTERNAL_ERROR);
goto f_err;
}
}
for (curr_rec = 0;
curr_rec < num_recs && SSL3_RECORD_is_read(&rr[curr_rec]);
curr_rec++) ;
if (curr_rec == num_recs) {
RECORD_LAYER_set_numrpipes(&s->rlayer, 0);
num_recs = 0;
curr_rec = 0;
}
} while (num_recs == 0);
rr = &rr[curr_rec];
if (SSL3_RECORD_get_type(rr) != SSL3_RT_ALERT
&& SSL3_RECORD_get_length(rr) != 0)
s->rlayer.alert_count = 0;
if (s->s3->change_cipher_spec
&& (SSL3_RECORD_get_type(rr) != SSL3_RT_HANDSHAKE)) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_DATA_BETWEEN_CCS_AND_FINISHED);
goto f_err;
}
if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
SSL3_RECORD_set_length(rr, 0);
s->rwstate = SSL_NOTHING;
return (0);
}
if (type == SSL3_RECORD_get_type(rr)
|| (SSL3_RECORD_get_type(rr) == SSL3_RT_CHANGE_CIPHER_SPEC
&& type == SSL3_RT_HANDSHAKE && recvd_type != NULL)) {
if (SSL_in_init(s) && (type == SSL3_RT_APPLICATION_DATA) &&
(s->enc_read_ctx == NULL)) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_APP_DATA_IN_HANDSHAKE);
goto f_err;
}
if (type == SSL3_RT_HANDSHAKE
&& SSL3_RECORD_get_type(rr) == SSL3_RT_CHANGE_CIPHER_SPEC
&& s->rlayer.handshake_fragment_len > 0) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_CCS_RECEIVED_EARLY);
goto f_err;
}
if (recvd_type != NULL)
*recvd_type = SSL3_RECORD_get_type(rr);
if (len <= 0)
return (len);
read_bytes = 0;
do {
if ((unsigned int)len - read_bytes > SSL3_RECORD_get_length(rr))
n = SSL3_RECORD_get_length(rr);
else
n = (unsigned int)len - read_bytes;
memcpy(buf, &(rr->data[rr->off]), n);
buf += n;
if (peek) {
if (SSL3_RECORD_get_length(rr) == 0)
SSL3_RECORD_set_read(rr);
} else {
SSL3_RECORD_sub_length(rr, n);
SSL3_RECORD_add_off(rr, n);
if (SSL3_RECORD_get_length(rr) == 0) {
s->rlayer.rstate = SSL_ST_READ_HEADER;
SSL3_RECORD_set_off(rr, 0);
SSL3_RECORD_set_read(rr);
}
}
if (SSL3_RECORD_get_length(rr) == 0
|| (peek && n == SSL3_RECORD_get_length(rr))) {
curr_rec++;
rr++;
}
read_bytes += n;
} while (type == SSL3_RT_APPLICATION_DATA && curr_rec < num_recs
&& read_bytes < (unsigned int)len);
if (read_bytes == 0) {
goto start;
}
if (!peek && curr_rec == num_recs
&& (s->mode & SSL_MODE_RELEASE_BUFFERS)
&& SSL3_BUFFER_get_left(rbuf) == 0)
ssl3_release_read_buffer(s);
return read_bytes;
}
if (rr->rec_version == SSL2_VERSION) {
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_READ_BYTES, ERR_R_INTERNAL_ERROR);
goto f_err;
}
if (s->method->version == TLS_ANY_VERSION
&& (s->server || rr->type != SSL3_RT_ALERT)) {
s->version = rr->rec_version;
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_UNEXPECTED_MESSAGE);
goto f_err;
}
{
unsigned int dest_maxlen = 0;
unsigned char *dest = NULL;
unsigned int *dest_len = NULL;
if (SSL3_RECORD_get_type(rr) == SSL3_RT_HANDSHAKE) {
dest_maxlen = sizeof s->rlayer.handshake_fragment;
dest = s->rlayer.handshake_fragment;
dest_len = &s->rlayer.handshake_fragment_len;
} else if (SSL3_RECORD_get_type(rr) == SSL3_RT_ALERT) {
dest_maxlen = sizeof s->rlayer.alert_fragment;
dest = s->rlayer.alert_fragment;
dest_len = &s->rlayer.alert_fragment_len;
}
if (dest_maxlen > 0) {
n = dest_maxlen - *dest_len;
if (SSL3_RECORD_get_length(rr) < n)
n = SSL3_RECORD_get_length(rr);
while (n-- > 0) {
dest[(*dest_len)++] =
SSL3_RECORD_get_data(rr)[SSL3_RECORD_get_off(rr)];
SSL3_RECORD_add_off(rr, 1);
SSL3_RECORD_add_length(rr, -1);
}
if (*dest_len < dest_maxlen) {
SSL3_RECORD_set_read(rr);
goto start;
}
}
}
if ((!s->server) &&
(s->rlayer.handshake_fragment_len >= 4) &&
(s->rlayer.handshake_fragment[0] == SSL3_MT_HELLO_REQUEST) &&
(s->session != NULL) && (s->session->cipher != NULL)) {
s->rlayer.handshake_fragment_len = 0;
if ((s->rlayer.handshake_fragment[1] != 0) ||
(s->rlayer.handshake_fragment[2] != 0) ||
(s->rlayer.handshake_fragment[3] != 0)) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_BAD_HELLO_REQUEST);
goto f_err;
}
if (s->msg_callback)
s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE,
s->rlayer.handshake_fragment, 4, s,
s->msg_callback_arg);
if (SSL_is_init_finished(s) &&
!(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS) &&
!s->s3->renegotiate) {
ssl3_renegotiate(s);
if (ssl3_renegotiate_check(s)) {
i = s->handshake_func(s);
if (i < 0)
return (i);
if (i == 0) {
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
return (-1);
}
if (!(s->mode & SSL_MODE_AUTO_RETRY)) {
if (SSL3_BUFFER_get_left(rbuf) == 0) {
BIO *bio;
s->rwstate = SSL_READING;
bio = SSL_get_rbio(s);
BIO_clear_retry_flags(bio);
BIO_set_retry_read(bio);
return (-1);
}
}
} else {
SSL3_RECORD_set_read(rr);
}
} else {
SSL3_RECORD_set_read(rr);
}
goto start;
}
if (s->server &&
SSL_is_init_finished(s) &&
!s->s3->send_connection_binding &&
(s->version > SSL3_VERSION) &&
(s->rlayer.handshake_fragment_len >= 4) &&
(s->rlayer.handshake_fragment[0] == SSL3_MT_CLIENT_HELLO) &&
(s->session != NULL) && (s->session->cipher != NULL) &&
!(s->ctx->options & SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION)) {
SSL3_RECORD_set_length(rr, 0);
SSL3_RECORD_set_read(rr);
ssl3_send_alert(s, SSL3_AL_WARNING, SSL_AD_NO_RENEGOTIATION);
goto start;
}
if (s->rlayer.alert_fragment_len >= 2) {
int alert_level = s->rlayer.alert_fragment[0];
int alert_descr = s->rlayer.alert_fragment[1];
s->rlayer.alert_fragment_len = 0;
if (s->msg_callback)
s->msg_callback(0, s->version, SSL3_RT_ALERT,
s->rlayer.alert_fragment, 2, s,
s->msg_callback_arg);
if (s->info_callback != NULL)
cb = s->info_callback;
else if (s->ctx->info_callback != NULL)
cb = s->ctx->info_callback;
if (cb != NULL) {
j = (alert_level << 8) | alert_descr;
cb(s, SSL_CB_READ_ALERT, j);
}
if (alert_level == SSL3_AL_WARNING) {
s->s3->warn_alert = alert_descr;
SSL3_RECORD_set_read(rr);
s->rlayer.alert_count++;
if (s->rlayer.alert_count == MAX_WARN_ALERT_COUNT) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_TOO_MANY_WARN_ALERTS);
goto f_err;
}
if (alert_descr == SSL_AD_CLOSE_NOTIFY) {
s->shutdown |= SSL_RECEIVED_SHUTDOWN;
return (0);
}
else if (alert_descr == SSL_AD_NO_RENEGOTIATION) {
al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_NO_RENEGOTIATION);
goto f_err;
}
#ifdef SSL_AD_MISSING_SRP_USERNAME
else if (alert_descr == SSL_AD_MISSING_SRP_USERNAME)
return (0);
#endif
} else if (alert_level == SSL3_AL_FATAL) {
char tmp[16];
s->rwstate = SSL_NOTHING;
s->s3->fatal_alert = alert_descr;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_AD_REASON_OFFSET + alert_descr);
BIO_snprintf(tmp, sizeof tmp, "%d", alert_descr);
ERR_add_error_data(2, "SSL alert number ", tmp);
s->shutdown |= SSL_RECEIVED_SHUTDOWN;
SSL3_RECORD_set_read(rr);
SSL_CTX_remove_session(s->session_ctx, s->session);
return (0);
} else {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_UNKNOWN_ALERT_TYPE);
goto f_err;
}
goto start;
}
if (s->shutdown & SSL_SENT_SHUTDOWN) {
s->rwstate = SSL_NOTHING;
SSL3_RECORD_set_length(rr, 0);
SSL3_RECORD_set_read(rr);
return (0);
}
if (SSL3_RECORD_get_type(rr) == SSL3_RT_CHANGE_CIPHER_SPEC) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_CCS_RECEIVED_EARLY);
goto f_err;
}
if ((s->rlayer.handshake_fragment_len >= 4)
&& !ossl_statem_get_in_handshake(s)) {
if (SSL_is_init_finished(s) &&
!(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS)) {
ossl_statem_set_in_init(s, 1);
s->renegotiate = 1;
s->new_session = 1;
}
i = s->handshake_func(s);
if (i < 0)
return (i);
if (i == 0) {
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
return (-1);
}
if (!(s->mode & SSL_MODE_AUTO_RETRY)) {
if (SSL3_BUFFER_get_left(rbuf) == 0) {
BIO *bio;
s->rwstate = SSL_READING;
bio = SSL_get_rbio(s);
BIO_clear_retry_flags(bio);
BIO_set_retry_read(bio);
return (-1);
}
}
goto start;
}
switch (SSL3_RECORD_get_type(rr)) {
default:
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_UNEXPECTED_RECORD);
goto f_err;
case SSL3_RT_CHANGE_CIPHER_SPEC:
case SSL3_RT_ALERT:
case SSL3_RT_HANDSHAKE:
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, ERR_R_INTERNAL_ERROR);
goto f_err;
case SSL3_RT_APPLICATION_DATA:
if (ossl_statem_app_data_allowed(s)) {
s->s3->in_read_app_data = 2;
return (-1);
} else {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_UNEXPECTED_RECORD);
goto f_err;
}
}
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
return (-1);
} | 367,577 |
0 | int tls1_final_finish_mac(SSL *s, const char *str, int slen, unsigned char *out)
{
int hashlen;
unsigned char hash[EVP_MAX_MD_SIZE];
if (!ssl3_digest_cached_records(s, 0))
return 0;
hashlen = ssl_handshake_hash(s, hash, sizeof(hash));
if (hashlen == 0)
return 0;
if (!tls1_PRF(s, str, slen, hash, hashlen, NULL, 0, NULL, 0, NULL, 0,
s->session->master_key, s->session->master_key_length,
out, TLS1_FINISH_MAC_LENGTH))
return 0;
OPENSSL_cleanse(hash, hashlen);
return TLS1_FINISH_MAC_LENGTH;
} | int tls1_final_finish_mac(SSL *s, const char *str, int slen, unsigned char *out)
{
int hashlen;
unsigned char hash[EVP_MAX_MD_SIZE];
if (!ssl3_digest_cached_records(s, 0))
return 0;
hashlen = ssl_handshake_hash(s, hash, sizeof(hash));
if (hashlen == 0)
return 0;
if (!tls1_PRF(s, str, slen, hash, hashlen, NULL, 0, NULL, 0, NULL, 0,
s->session->master_key, s->session->master_key_length,
out, TLS1_FINISH_MAC_LENGTH))
return 0;
OPENSSL_cleanse(hash, hashlen);
return TLS1_FINISH_MAC_LENGTH;
} | 367,578 |
0 | static int tls_use_ticket(SSL *s)
{
if (s->options & SSL_OP_NO_TICKET)
return 0;
return ssl_security(s, SSL_SECOP_TICKET, 0, 0, NULL);
} | static int tls_use_ticket(SSL *s)
{
if (s->options & SSL_OP_NO_TICKET)
return 0;
return ssl_security(s, SSL_SECOP_TICKET, 0, 0, NULL);
} | 367,579 |
0 | int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
const char *label, size_t llen,
const unsigned char *context,
size_t contextlen, int use_context)
{
unsigned char *val = NULL;
size_t vallen = 0, currentvalpos;
int rv;
/*
* construct PRF arguments we construct the PRF argument ourself rather
* than passing separate values into the TLS PRF to ensure that the
* concatenation of values does not create a prohibited label.
*/
vallen = llen + SSL3_RANDOM_SIZE * 2;
if (use_context) {
vallen += 2 + contextlen;
}
val = OPENSSL_malloc(vallen);
if (val == NULL)
goto err2;
currentvalpos = 0;
memcpy(val + currentvalpos, (unsigned char *)label, llen);
currentvalpos += llen;
memcpy(val + currentvalpos, s->s3->client_random, SSL3_RANDOM_SIZE);
currentvalpos += SSL3_RANDOM_SIZE;
memcpy(val + currentvalpos, s->s3->server_random, SSL3_RANDOM_SIZE);
currentvalpos += SSL3_RANDOM_SIZE;
if (use_context) {
val[currentvalpos] = (contextlen >> 8) & 0xff;
currentvalpos++;
val[currentvalpos] = contextlen & 0xff;
currentvalpos++;
if ((contextlen > 0) || (context != NULL)) {
memcpy(val + currentvalpos, context, contextlen);
}
}
/*
* disallow prohibited labels note that SSL3_RANDOM_SIZE > max(prohibited
* label len) = 15, so size of val > max(prohibited label len) = 15 and
* the comparisons won't have buffer overflow
*/
if (memcmp(val, TLS_MD_CLIENT_FINISH_CONST,
TLS_MD_CLIENT_FINISH_CONST_SIZE) == 0)
goto err1;
if (memcmp(val, TLS_MD_SERVER_FINISH_CONST,
TLS_MD_SERVER_FINISH_CONST_SIZE) == 0)
goto err1;
if (memcmp(val, TLS_MD_MASTER_SECRET_CONST,
TLS_MD_MASTER_SECRET_CONST_SIZE) == 0)
goto err1;
if (memcmp(val, TLS_MD_EXTENDED_MASTER_SECRET_CONST,
TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE) == 0)
goto err1;
if (memcmp(val, TLS_MD_KEY_EXPANSION_CONST,
TLS_MD_KEY_EXPANSION_CONST_SIZE) == 0)
goto err1;
rv = tls1_PRF(s,
val, vallen,
NULL, 0,
NULL, 0,
NULL, 0,
NULL, 0,
s->session->master_key, s->session->master_key_length,
out, olen);
goto ret;
err1:
SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, SSL_R_TLS_ILLEGAL_EXPORTER_LABEL);
rv = 0;
goto ret;
err2:
SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, ERR_R_MALLOC_FAILURE);
rv = 0;
ret:
OPENSSL_clear_free(val, vallen);
return (rv);
} | int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
const char *label, size_t llen,
const unsigned char *context,
size_t contextlen, int use_context)
{
unsigned char *val = NULL;
size_t vallen = 0, currentvalpos;
int rv;
vallen = llen + SSL3_RANDOM_SIZE * 2;
if (use_context) {
vallen += 2 + contextlen;
}
val = OPENSSL_malloc(vallen);
if (val == NULL)
goto err2;
currentvalpos = 0;
memcpy(val + currentvalpos, (unsigned char *)label, llen);
currentvalpos += llen;
memcpy(val + currentvalpos, s->s3->client_random, SSL3_RANDOM_SIZE);
currentvalpos += SSL3_RANDOM_SIZE;
memcpy(val + currentvalpos, s->s3->server_random, SSL3_RANDOM_SIZE);
currentvalpos += SSL3_RANDOM_SIZE;
if (use_context) {
val[currentvalpos] = (contextlen >> 8) & 0xff;
currentvalpos++;
val[currentvalpos] = contextlen & 0xff;
currentvalpos++;
if ((contextlen > 0) || (context != NULL)) {
memcpy(val + currentvalpos, context, contextlen);
}
}
if (memcmp(val, TLS_MD_CLIENT_FINISH_CONST,
TLS_MD_CLIENT_FINISH_CONST_SIZE) == 0)
goto err1;
if (memcmp(val, TLS_MD_SERVER_FINISH_CONST,
TLS_MD_SERVER_FINISH_CONST_SIZE) == 0)
goto err1;
if (memcmp(val, TLS_MD_MASTER_SECRET_CONST,
TLS_MD_MASTER_SECRET_CONST_SIZE) == 0)
goto err1;
if (memcmp(val, TLS_MD_EXTENDED_MASTER_SECRET_CONST,
TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE) == 0)
goto err1;
if (memcmp(val, TLS_MD_KEY_EXPANSION_CONST,
TLS_MD_KEY_EXPANSION_CONST_SIZE) == 0)
goto err1;
rv = tls1_PRF(s,
val, vallen,
NULL, 0,
NULL, 0,
NULL, 0,
NULL, 0,
s->session->master_key, s->session->master_key_length,
out, olen);
goto ret;
err1:
SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, SSL_R_TLS_ILLEGAL_EXPORTER_LABEL);
rv = 0;
goto ret;
err2:
SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, ERR_R_MALLOC_FAILURE);
rv = 0;
ret:
OPENSSL_clear_free(val, vallen);
return (rv);
} | 367,581 |
0 | int tls1_setup_key_block(SSL *s)
{
unsigned char *p;
const EVP_CIPHER *c;
const EVP_MD *hash;
int num;
SSL_COMP *comp;
int mac_type = NID_undef, mac_secret_size = 0;
int ret = 0;
if (s->s3->tmp.key_block_length != 0)
return (1);
if (!ssl_cipher_get_evp(s->session, &c, &hash, &mac_type, &mac_secret_size,
&comp, s->tlsext_use_etm)) {
SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK, SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
return (0);
}
s->s3->tmp.new_sym_enc = c;
s->s3->tmp.new_hash = hash;
s->s3->tmp.new_mac_pkey_type = mac_type;
s->s3->tmp.new_mac_secret_size = mac_secret_size;
num = EVP_CIPHER_key_length(c) + mac_secret_size + EVP_CIPHER_iv_length(c);
num *= 2;
ssl3_cleanup_key_block(s);
if ((p = OPENSSL_malloc(num)) == NULL) {
SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK, ERR_R_MALLOC_FAILURE);
goto err;
}
s->s3->tmp.key_block_length = num;
s->s3->tmp.key_block = p;
#ifdef SSL_DEBUG
printf("client random\n");
{
int z;
for (z = 0; z < SSL3_RANDOM_SIZE; z++)
printf("%02X%c", s->s3->client_random[z],
((z + 1) % 16) ? ' ' : '\n');
}
printf("server random\n");
{
int z;
for (z = 0; z < SSL3_RANDOM_SIZE; z++)
printf("%02X%c", s->s3->server_random[z],
((z + 1) % 16) ? ' ' : '\n');
}
printf("master key\n");
{
int z;
for (z = 0; z < s->session->master_key_length; z++)
printf("%02X%c", s->session->master_key[z],
((z + 1) % 16) ? ' ' : '\n');
}
#endif
if (!tls1_generate_key_block(s, p, num))
goto err;
#ifdef SSL_DEBUG
printf("\nkey block\n");
{
int z;
for (z = 0; z < num; z++)
printf("%02X%c", p[z], ((z + 1) % 16) ? ' ' : '\n');
}
#endif
if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)
&& s->method->version <= TLS1_VERSION) {
/*
* enable vulnerability countermeasure for CBC ciphers with known-IV
* problem (http://www.openssl.org/~bodo/tls-cbc.txt)
*/
s->s3->need_empty_fragments = 1;
if (s->session->cipher != NULL) {
if (s->session->cipher->algorithm_enc == SSL_eNULL)
s->s3->need_empty_fragments = 0;
#ifndef OPENSSL_NO_RC4
if (s->session->cipher->algorithm_enc == SSL_RC4)
s->s3->need_empty_fragments = 0;
#endif
}
}
ret = 1;
err:
return (ret);
} | int tls1_setup_key_block(SSL *s)
{
unsigned char *p;
const EVP_CIPHER *c;
const EVP_MD *hash;
int num;
SSL_COMP *comp;
int mac_type = NID_undef, mac_secret_size = 0;
int ret = 0;
if (s->s3->tmp.key_block_length != 0)
return (1);
if (!ssl_cipher_get_evp(s->session, &c, &hash, &mac_type, &mac_secret_size,
&comp, s->tlsext_use_etm)) {
SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK, SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
return (0);
}
s->s3->tmp.new_sym_enc = c;
s->s3->tmp.new_hash = hash;
s->s3->tmp.new_mac_pkey_type = mac_type;
s->s3->tmp.new_mac_secret_size = mac_secret_size;
num = EVP_CIPHER_key_length(c) + mac_secret_size + EVP_CIPHER_iv_length(c);
num *= 2;
ssl3_cleanup_key_block(s);
if ((p = OPENSSL_malloc(num)) == NULL) {
SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK, ERR_R_MALLOC_FAILURE);
goto err;
}
s->s3->tmp.key_block_length = num;
s->s3->tmp.key_block = p;
#ifdef SSL_DEBUG
printf("client random\n");
{
int z;
for (z = 0; z < SSL3_RANDOM_SIZE; z++)
printf("%02X%c", s->s3->client_random[z],
((z + 1) % 16) ? ' ' : '\n');
}
printf("server random\n");
{
int z;
for (z = 0; z < SSL3_RANDOM_SIZE; z++)
printf("%02X%c", s->s3->server_random[z],
((z + 1) % 16) ? ' ' : '\n');
}
printf("master key\n");
{
int z;
for (z = 0; z < s->session->master_key_length; z++)
printf("%02X%c", s->session->master_key[z],
((z + 1) % 16) ? ' ' : '\n');
}
#endif
if (!tls1_generate_key_block(s, p, num))
goto err;
#ifdef SSL_DEBUG
printf("\nkey block\n");
{
int z;
for (z = 0; z < num; z++)
printf("%02X%c", p[z], ((z + 1) % 16) ? ' ' : '\n');
}
#endif
if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)
&& s->method->version <= TLS1_VERSION) {
s->s3->need_empty_fragments = 1;
if (s->session->cipher != NULL) {
if (s->session->cipher->algorithm_enc == SSL_eNULL)
s->s3->need_empty_fragments = 0;
#ifndef OPENSSL_NO_RC4
if (s->session->cipher->algorithm_enc == SSL_RC4)
s->s3->need_empty_fragments = 0;
#endif
}
}
ret = 1;
err:
return (ret);
} | 367,582 |
0 | int tls1_ec_curve_id2nid(int curve_id, unsigned int *pflags)
{
const tls_curve_info *cinfo;
/* ECC curves from RFC 4492 and RFC 7027 */
if ((curve_id < 1) || ((unsigned int)curve_id > OSSL_NELEM(nid_list)))
return 0;
cinfo = nid_list + curve_id - 1;
if (pflags)
*pflags = cinfo->flags;
return cinfo->nid;
} | int tls1_ec_curve_id2nid(int curve_id, unsigned int *pflags)
{
const tls_curve_info *cinfo;
if ((curve_id < 1) || ((unsigned int)curve_id > OSSL_NELEM(nid_list)))
return 0;
cinfo = nid_list + curve_id - 1;
if (pflags)
*pflags = cinfo->flags;
return cinfo->nid;
} | 367,583 |
0 | int SSL_get_sigalgs(SSL *s, int idx,
int *psign, int *phash, int *psignhash,
unsigned char *rsig, unsigned char *rhash)
{
const unsigned char *psig = s->s3->tmp.peer_sigalgs;
if (psig == NULL)
return 0;
if (idx >= 0) {
idx <<= 1;
if (idx >= (int)s->s3->tmp.peer_sigalgslen)
return 0;
psig += idx;
if (rhash)
*rhash = psig[0];
if (rsig)
*rsig = psig[1];
tls1_lookup_sigalg(phash, psign, psignhash, psig);
}
return s->s3->tmp.peer_sigalgslen / 2;
} | int SSL_get_sigalgs(SSL *s, int idx,
int *psign, int *phash, int *psignhash,
unsigned char *rsig, unsigned char *rhash)
{
const unsigned char *psig = s->s3->tmp.peer_sigalgs;
if (psig == NULL)
return 0;
if (idx >= 0) {
idx <<= 1;
if (idx >= (int)s->s3->tmp.peer_sigalgslen)
return 0;
psig += idx;
if (rhash)
*rhash = psig[0];
if (rsig)
*rsig = psig[1];
tls1_lookup_sigalg(phash, psign, psignhash, psig);
}
return s->s3->tmp.peer_sigalgslen / 2;
} | 367,584 |
0 | static void tls1_lookup_sigalg(int *phash_nid, int *psign_nid,
int *psignhash_nid, const unsigned char *data)
{
int sign_nid = NID_undef, hash_nid = NID_undef;
if (!phash_nid && !psign_nid && !psignhash_nid)
return;
if (phash_nid || psignhash_nid) {
hash_nid = tls12_find_nid(data[0], tls12_md, OSSL_NELEM(tls12_md));
if (phash_nid)
*phash_nid = hash_nid;
}
if (psign_nid || psignhash_nid) {
sign_nid = tls12_find_nid(data[1], tls12_sig, OSSL_NELEM(tls12_sig));
if (psign_nid)
*psign_nid = sign_nid;
}
if (psignhash_nid) {
if (sign_nid == NID_undef || hash_nid == NID_undef
|| OBJ_find_sigid_by_algs(psignhash_nid, hash_nid, sign_nid) <= 0)
*psignhash_nid = NID_undef;
}
} | static void tls1_lookup_sigalg(int *phash_nid, int *psign_nid,
int *psignhash_nid, const unsigned char *data)
{
int sign_nid = NID_undef, hash_nid = NID_undef;
if (!phash_nid && !psign_nid && !psignhash_nid)
return;
if (phash_nid || psignhash_nid) {
hash_nid = tls12_find_nid(data[0], tls12_md, OSSL_NELEM(tls12_md));
if (phash_nid)
*phash_nid = hash_nid;
}
if (psign_nid || psignhash_nid) {
sign_nid = tls12_find_nid(data[1], tls12_sig, OSSL_NELEM(tls12_sig));
if (psign_nid)
*psign_nid = sign_nid;
}
if (psignhash_nid) {
if (sign_nid == NID_undef || hash_nid == NID_undef
|| OBJ_find_sigid_by_algs(psignhash_nid, hash_nid, sign_nid) <= 0)
*psignhash_nid = NID_undef;
}
} | 367,585 |
0 | static int tls12_find_id(int nid, const tls12_lookup *table, size_t tlen)
{
size_t i;
for (i = 0; i < tlen; i++) {
if (table[i].nid == nid)
return table[i].id;
}
return -1;
} | static int tls12_find_id(int nid, const tls12_lookup *table, size_t tlen)
{
size_t i;
for (i = 0; i < tlen; i++) {
if (table[i].nid == nid)
return table[i].id;
}
return -1;
} | 367,586 |
0 | int ssl3_read_n(SSL *s, int n, int max, int extend, int clearold)
{
/*
* If extend == 0, obtain new n-byte packet; if extend == 1, increase
* packet by another n bytes. The packet will be in the sub-array of
* s->s3->rbuf.buf specified by s->packet and s->packet_length. (If
* s->rlayer.read_ahead is set, 'max' bytes may be stored in rbuf [plus
* s->packet_length bytes if extend == 1].)
* if clearold == 1, move the packet to the start of the buffer; if
* clearold == 0 then leave any old packets where they were
*/
int i, len, left;
size_t align = 0;
unsigned char *pkt;
SSL3_BUFFER *rb;
if (n <= 0)
return n;
rb = &s->rlayer.rbuf;
if (rb->buf == NULL)
if (!ssl3_setup_read_buffer(s))
return -1;
left = rb->left;
#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
align = (size_t)rb->buf + SSL3_RT_HEADER_LENGTH;
align = SSL3_ALIGN_PAYLOAD - 1 - ((align - 1) % SSL3_ALIGN_PAYLOAD);
#endif
if (!extend) {
/* start with empty packet ... */
if (left == 0)
rb->offset = align;
else if (align != 0 && left >= SSL3_RT_HEADER_LENGTH) {
/*
* check if next packet length is large enough to justify payload
* alignment...
*/
pkt = rb->buf + rb->offset;
if (pkt[0] == SSL3_RT_APPLICATION_DATA
&& (pkt[3] << 8 | pkt[4]) >= 128) {
/*
* Note that even if packet is corrupted and its length field
* is insane, we can only be led to wrong decision about
* whether memmove will occur or not. Header values has no
* effect on memmove arguments and therefore no buffer
* overrun can be triggered.
*/
memmove(rb->buf + align, pkt, left);
rb->offset = align;
}
}
s->rlayer.packet = rb->buf + rb->offset;
s->rlayer.packet_length = 0;
/* ... now we can act as if 'extend' was set */
}
len = s->rlayer.packet_length;
pkt = rb->buf + align;
/*
* Move any available bytes to front of buffer: 'len' bytes already
* pointed to by 'packet', 'left' extra ones at the end
*/
if (s->rlayer.packet != pkt && clearold == 1) {
memmove(pkt, s->rlayer.packet, len + left);
s->rlayer.packet = pkt;
rb->offset = len + align;
}
/*
* For DTLS/UDP reads should not span multiple packets because the read
* operation returns the whole packet at once (as long as it fits into
* the buffer).
*/
if (SSL_IS_DTLS(s)) {
if (left == 0 && extend)
return 0;
if (left > 0 && n > left)
n = left;
}
/* if there is enough in the buffer from a previous read, take some */
if (left >= n) {
s->rlayer.packet_length += n;
rb->left = left - n;
rb->offset += n;
return (n);
}
/* else we need to read more data */
if (n > (int)(rb->len - rb->offset)) { /* does not happen */
SSLerr(SSL_F_SSL3_READ_N, ERR_R_INTERNAL_ERROR);
return -1;
}
/* We always act like read_ahead is set for DTLS */
if (!s->rlayer.read_ahead && !SSL_IS_DTLS(s))
/* ignore max parameter */
max = n;
else {
if (max < n)
max = n;
if (max > (int)(rb->len - rb->offset))
max = rb->len - rb->offset;
}
while (left < n) {
/*
* Now we have len+left bytes at the front of s->s3->rbuf.buf and
* need to read in more until we have len+n (up to len+max if
* possible)
*/
clear_sys_error();
if (s->rbio != NULL) {
s->rwstate = SSL_READING;
i = BIO_read(s->rbio, pkt + len + left, max - left);
} else {
SSLerr(SSL_F_SSL3_READ_N, SSL_R_READ_BIO_NOT_SET);
i = -1;
}
if (i <= 0) {
rb->left = left;
if (s->mode & SSL_MODE_RELEASE_BUFFERS && !SSL_IS_DTLS(s))
if (len + left == 0)
ssl3_release_read_buffer(s);
return i;
}
left += i;
/*
* reads should *never* span multiple packets for DTLS because the
* underlying transport protocol is message oriented as opposed to
* byte oriented as in the TLS case.
*/
if (SSL_IS_DTLS(s)) {
if (n > left)
n = left; /* makes the while condition false */
}
}
/* done reading, now the book-keeping */
rb->offset += n;
rb->left = left - n;
s->rlayer.packet_length += n;
s->rwstate = SSL_NOTHING;
return (n);
} | int ssl3_read_n(SSL *s, int n, int max, int extend, int clearold)
{
int i, len, left;
size_t align = 0;
unsigned char *pkt;
SSL3_BUFFER *rb;
if (n <= 0)
return n;
rb = &s->rlayer.rbuf;
if (rb->buf == NULL)
if (!ssl3_setup_read_buffer(s))
return -1;
left = rb->left;
#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
align = (size_t)rb->buf + SSL3_RT_HEADER_LENGTH;
align = SSL3_ALIGN_PAYLOAD - 1 - ((align - 1) % SSL3_ALIGN_PAYLOAD);
#endif
if (!extend) {
if (left == 0)
rb->offset = align;
else if (align != 0 && left >= SSL3_RT_HEADER_LENGTH) {
pkt = rb->buf + rb->offset;
if (pkt[0] == SSL3_RT_APPLICATION_DATA
&& (pkt[3] << 8 | pkt[4]) >= 128) {
memmove(rb->buf + align, pkt, left);
rb->offset = align;
}
}
s->rlayer.packet = rb->buf + rb->offset;
s->rlayer.packet_length = 0;
}
len = s->rlayer.packet_length;
pkt = rb->buf + align;
if (s->rlayer.packet != pkt && clearold == 1) {
memmove(pkt, s->rlayer.packet, len + left);
s->rlayer.packet = pkt;
rb->offset = len + align;
}
if (SSL_IS_DTLS(s)) {
if (left == 0 && extend)
return 0;
if (left > 0 && n > left)
n = left;
}
if (left >= n) {
s->rlayer.packet_length += n;
rb->left = left - n;
rb->offset += n;
return (n);
}
if (n > (int)(rb->len - rb->offset)) {
SSLerr(SSL_F_SSL3_READ_N, ERR_R_INTERNAL_ERROR);
return -1;
}
if (!s->rlayer.read_ahead && !SSL_IS_DTLS(s))
max = n;
else {
if (max < n)
max = n;
if (max > (int)(rb->len - rb->offset))
max = rb->len - rb->offset;
}
while (left < n) {
clear_sys_error();
if (s->rbio != NULL) {
s->rwstate = SSL_READING;
i = BIO_read(s->rbio, pkt + len + left, max - left);
} else {
SSLerr(SSL_F_SSL3_READ_N, SSL_R_READ_BIO_NOT_SET);
i = -1;
}
if (i <= 0) {
rb->left = left;
if (s->mode & SSL_MODE_RELEASE_BUFFERS && !SSL_IS_DTLS(s))
if (len + left == 0)
ssl3_release_read_buffer(s);
return i;
}
left += i;
if (SSL_IS_DTLS(s)) {
if (n > left)
n = left;
}
}
rb->offset += n;
rb->left = left - n;
s->rlayer.packet_length += n;
s->rwstate = SSL_NOTHING;
return (n);
} | 367,587 |
0 | static int tls1_check_ec_key(SSL *s,
unsigned char *curve_id, unsigned char *comp_id)
{
const unsigned char *pformats, *pcurves;
size_t num_formats, num_curves, i;
int j;
/*
* If point formats extension present check it, otherwise everything is
* supported (see RFC4492).
*/
if (comp_id && s->session->tlsext_ecpointformatlist) {
pformats = s->session->tlsext_ecpointformatlist;
num_formats = s->session->tlsext_ecpointformatlist_length;
for (i = 0; i < num_formats; i++, pformats++) {
if (*comp_id == *pformats)
break;
}
if (i == num_formats)
return 0;
}
if (!curve_id)
return 1;
/* Check curve is consistent with client and server preferences */
for (j = 0; j <= 1; j++) {
if (!tls1_get_curvelist(s, j, &pcurves, &num_curves))
return 0;
if (j == 1 && num_curves == 0) {
/*
* If we've not received any curves then skip this check.
* RFC 4492 does not require the supported elliptic curves extension
* so if it is not sent we can just choose any curve.
* It is invalid to send an empty list in the elliptic curves
* extension, so num_curves == 0 always means no extension.
*/
break;
}
for (i = 0; i < num_curves; i++, pcurves += 2) {
if (pcurves[0] == curve_id[0] && pcurves[1] == curve_id[1])
break;
}
if (i == num_curves)
return 0;
/* For clients can only check sent curve list */
if (!s->server)
break;
}
return 1;
} | static int tls1_check_ec_key(SSL *s,
unsigned char *curve_id, unsigned char *comp_id)
{
const unsigned char *pformats, *pcurves;
size_t num_formats, num_curves, i;
int j;
if (comp_id && s->session->tlsext_ecpointformatlist) {
pformats = s->session->tlsext_ecpointformatlist;
num_formats = s->session->tlsext_ecpointformatlist_length;
for (i = 0; i < num_formats; i++, pformats++) {
if (*comp_id == *pformats)
break;
}
if (i == num_formats)
return 0;
}
if (!curve_id)
return 1;
for (j = 0; j <= 1; j++) {
if (!tls1_get_curvelist(s, j, &pcurves, &num_curves))
return 0;
if (j == 1 && num_curves == 0) {
break;
}
for (i = 0; i < num_curves; i++, pcurves += 2) {
if (pcurves[0] == curve_id[0] && pcurves[1] == curve_id[1])
break;
}
if (i == num_curves)
return 0;
if (!s->server)
break;
}
return 1;
} | 367,589 |
0 | void ssl_set_default_md(SSL *s)
{
const EVP_MD **pmd = s->s3->tmp.md;
#ifndef OPENSSL_NO_DSA
pmd[SSL_PKEY_DSA_SIGN] = ssl_md(SSL_MD_SHA1_IDX);
#endif
#ifndef OPENSSL_NO_RSA
if (SSL_USE_SIGALGS(s))
pmd[SSL_PKEY_RSA_SIGN] = ssl_md(SSL_MD_SHA1_IDX);
else
pmd[SSL_PKEY_RSA_SIGN] = ssl_md(SSL_MD_MD5_SHA1_IDX);
pmd[SSL_PKEY_RSA_ENC] = pmd[SSL_PKEY_RSA_SIGN];
#endif
#ifndef OPENSSL_NO_EC
pmd[SSL_PKEY_ECC] = ssl_md(SSL_MD_SHA1_IDX);
#endif
#ifndef OPENSSL_NO_GOST
pmd[SSL_PKEY_GOST01] = ssl_md(SSL_MD_GOST94_IDX);
pmd[SSL_PKEY_GOST12_256] = ssl_md(SSL_MD_GOST12_256_IDX);
pmd[SSL_PKEY_GOST12_512] = ssl_md(SSL_MD_GOST12_512_IDX);
#endif
} | void ssl_set_default_md(SSL *s)
{
const EVP_MD **pmd = s->s3->tmp.md;
#ifndef OPENSSL_NO_DSA
pmd[SSL_PKEY_DSA_SIGN] = ssl_md(SSL_MD_SHA1_IDX);
#endif
#ifndef OPENSSL_NO_RSA
if (SSL_USE_SIGALGS(s))
pmd[SSL_PKEY_RSA_SIGN] = ssl_md(SSL_MD_SHA1_IDX);
else
pmd[SSL_PKEY_RSA_SIGN] = ssl_md(SSL_MD_MD5_SHA1_IDX);
pmd[SSL_PKEY_RSA_ENC] = pmd[SSL_PKEY_RSA_SIGN];
#endif
#ifndef OPENSSL_NO_EC
pmd[SSL_PKEY_ECC] = ssl_md(SSL_MD_SHA1_IDX);
#endif
#ifndef OPENSSL_NO_GOST
pmd[SSL_PKEY_GOST01] = ssl_md(SSL_MD_GOST94_IDX);
pmd[SSL_PKEY_GOST12_256] = ssl_md(SSL_MD_GOST12_256_IDX);
pmd[SSL_PKEY_GOST12_512] = ssl_md(SSL_MD_GOST12_512_IDX);
#endif
} | 367,590 |
0 | static int ssl_scan_clienthello_tlsext(SSL *s, PACKET *pkt, int *al)
{
unsigned int type;
int renegotiate_seen = 0;
PACKET extensions;
*al = SSL_AD_DECODE_ERROR;
s->servername_done = 0;
s->tlsext_status_type = -1;
#ifndef OPENSSL_NO_NEXTPROTONEG
s->s3->next_proto_neg_seen = 0;
#endif
OPENSSL_free(s->s3->alpn_selected);
s->s3->alpn_selected = NULL;
s->s3->alpn_selected_len = 0;
OPENSSL_free(s->s3->alpn_proposed);
s->s3->alpn_proposed = NULL;
s->s3->alpn_proposed_len = 0;
#ifndef OPENSSL_NO_HEARTBEATS
s->tlsext_heartbeat &= ~(SSL_DTLSEXT_HB_ENABLED |
SSL_DTLSEXT_HB_DONT_SEND_REQUESTS);
#endif
#ifndef OPENSSL_NO_EC
if (s->options & SSL_OP_SAFARI_ECDHE_ECDSA_BUG)
ssl_check_for_safari(s, pkt);
#endif /* !OPENSSL_NO_EC */
/* Clear any signature algorithms extension received */
OPENSSL_free(s->s3->tmp.peer_sigalgs);
s->s3->tmp.peer_sigalgs = NULL;
s->tlsext_use_etm = 0;
#ifndef OPENSSL_NO_SRP
OPENSSL_free(s->srp_ctx.login);
s->srp_ctx.login = NULL;
#endif
s->srtp_profile = NULL;
if (PACKET_remaining(pkt) == 0)
goto ri_check;
if (!PACKET_as_length_prefixed_2(pkt, &extensions))
return 0;
if (!tls1_check_duplicate_extensions(&extensions))
return 0;
/*
* We parse all extensions to ensure the ClientHello is well-formed but,
* unless an extension specifies otherwise, we ignore extensions upon
* resumption.
*/
while (PACKET_get_net_2(&extensions, &type)) {
PACKET extension;
if (!PACKET_get_length_prefixed_2(&extensions, &extension))
return 0;
if (s->tlsext_debug_cb)
s->tlsext_debug_cb(s, 0, type, PACKET_data(&extension),
PACKET_remaining(&extension),
s->tlsext_debug_arg);
if (type == TLSEXT_TYPE_renegotiate) {
if (!ssl_parse_clienthello_renegotiate_ext(s, &extension, al))
return 0;
renegotiate_seen = 1;
} else if (s->version == SSL3_VERSION) {
}
/*-
* The servername extension is treated as follows:
*
* - Only the hostname type is supported with a maximum length of 255.
* - The servername is rejected if too long or if it contains zeros,
* in which case an fatal alert is generated.
* - The servername field is maintained together with the session cache.
* - When a session is resumed, the servername call back invoked in order
* to allow the application to position itself to the right context.
* - The servername is acknowledged if it is new for a session or when
* it is identical to a previously used for the same session.
* Applications can control the behaviour. They can at any time
* set a 'desirable' servername for a new SSL object. This can be the
* case for example with HTTPS when a Host: header field is received and
* a renegotiation is requested. In this case, a possible servername
* presented in the new client hello is only acknowledged if it matches
* the value of the Host: field.
* - Applications must use SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
* if they provide for changing an explicit servername context for the
* session, i.e. when the session has been established with a servername
* extension.
* - On session reconnect, the servername extension may be absent.
*
*/
else if (type == TLSEXT_TYPE_server_name) {
unsigned int servname_type;
PACKET sni, hostname;
if (!PACKET_as_length_prefixed_2(&extension, &sni)
/* ServerNameList must be at least 1 byte long. */
|| PACKET_remaining(&sni) == 0) {
return 0;
}
/*
* Although the server_name extension was intended to be
* extensible to new name types, RFC 4366 defined the
* syntax inextensibility and OpenSSL 1.0.x parses it as
* such.
* RFC 6066 corrected the mistake but adding new name types
* is nevertheless no longer feasible, so act as if no other
* SNI types can exist, to simplify parsing.
*
* Also note that the RFC permits only one SNI value per type,
* i.e., we can only have a single hostname.
*/
if (!PACKET_get_1(&sni, &servname_type)
|| servname_type != TLSEXT_NAMETYPE_host_name
|| !PACKET_as_length_prefixed_2(&sni, &hostname)) {
return 0;
}
if (!s->hit) {
if (PACKET_remaining(&hostname) > TLSEXT_MAXLEN_host_name) {
*al = TLS1_AD_UNRECOGNIZED_NAME;
return 0;
}
if (PACKET_contains_zero_byte(&hostname)) {
*al = TLS1_AD_UNRECOGNIZED_NAME;
return 0;
}
if (!PACKET_strndup(&hostname, &s->session->tlsext_hostname)) {
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
s->servername_done = 1;
} else {
/*
* TODO(openssl-team): if the SNI doesn't match, we MUST
* fall back to a full handshake.
*/
s->servername_done = s->session->tlsext_hostname
&& PACKET_equal(&hostname, s->session->tlsext_hostname,
strlen(s->session->tlsext_hostname));
}
}
#ifndef OPENSSL_NO_SRP
else if (type == TLSEXT_TYPE_srp) {
PACKET srp_I;
if (!PACKET_as_length_prefixed_1(&extension, &srp_I))
return 0;
if (PACKET_contains_zero_byte(&srp_I))
return 0;
/*
* TODO(openssl-team): currently, we re-authenticate the user
* upon resumption. Instead, we MUST ignore the login.
*/
if (!PACKET_strndup(&srp_I, &s->srp_ctx.login)) {
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
}
#endif
#ifndef OPENSSL_NO_EC
else if (type == TLSEXT_TYPE_ec_point_formats) {
PACKET ec_point_format_list;
if (!PACKET_as_length_prefixed_1(&extension, &ec_point_format_list)
|| PACKET_remaining(&ec_point_format_list) == 0) {
return 0;
}
if (!s->hit) {
if (!PACKET_memdup(&ec_point_format_list,
&s->session->tlsext_ecpointformatlist,
&s->
session->tlsext_ecpointformatlist_length)) {
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
}
} else if (type == TLSEXT_TYPE_elliptic_curves) {
PACKET elliptic_curve_list;
/* Each NamedCurve is 2 bytes and we must have at least 1. */
if (!PACKET_as_length_prefixed_2(&extension, &elliptic_curve_list)
|| PACKET_remaining(&elliptic_curve_list) == 0
|| (PACKET_remaining(&elliptic_curve_list) % 2) != 0) {
return 0;
}
if (!s->hit) {
if (!PACKET_memdup(&elliptic_curve_list,
&s->session->tlsext_ellipticcurvelist,
&s->
session->tlsext_ellipticcurvelist_length)) {
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
}
}
#endif /* OPENSSL_NO_EC */
else if (type == TLSEXT_TYPE_session_ticket) {
if (s->tls_session_ticket_ext_cb &&
!s->tls_session_ticket_ext_cb(s, PACKET_data(&extension),
PACKET_remaining(&extension),
s->tls_session_ticket_ext_cb_arg))
{
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
} else if (type == TLSEXT_TYPE_signature_algorithms) {
PACKET supported_sig_algs;
if (!PACKET_as_length_prefixed_2(&extension, &supported_sig_algs)
|| (PACKET_remaining(&supported_sig_algs) % 2) != 0
|| PACKET_remaining(&supported_sig_algs) == 0) {
return 0;
}
if (!s->hit) {
if (!tls1_save_sigalgs(s, PACKET_data(&supported_sig_algs),
PACKET_remaining(&supported_sig_algs))) {
return 0;
}
}
} else if (type == TLSEXT_TYPE_status_request) {
if (!PACKET_get_1(&extension,
(unsigned int *)&s->tlsext_status_type)) {
return 0;
}
#ifndef OPENSSL_NO_OCSP
if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp) {
const unsigned char *ext_data;
PACKET responder_id_list, exts;
if (!PACKET_get_length_prefixed_2
(&extension, &responder_id_list))
return 0;
/*
* We remove any OCSP_RESPIDs from a previous handshake
* to prevent unbounded memory growth - CVE-2016-6304
*/
sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids,
OCSP_RESPID_free);
if (PACKET_remaining(&responder_id_list) > 0) {
s->tlsext_ocsp_ids = sk_OCSP_RESPID_new_null();
if (s->tlsext_ocsp_ids == NULL) {
*al = SSL_AD_INTERNAL_ERROR;
return 0;
}
} else {
s->tlsext_ocsp_ids = NULL;
}
while (PACKET_remaining(&responder_id_list) > 0) {
OCSP_RESPID *id;
PACKET responder_id;
const unsigned char *id_data;
if (!PACKET_get_length_prefixed_2(&responder_id_list,
&responder_id)
|| PACKET_remaining(&responder_id) == 0) {
return 0;
}
id_data = PACKET_data(&responder_id);
id = d2i_OCSP_RESPID(NULL, &id_data,
PACKET_remaining(&responder_id));
if (id == NULL)
return 0;
if (id_data != PACKET_end(&responder_id)) {
OCSP_RESPID_free(id);
return 0;
}
if (!sk_OCSP_RESPID_push(s->tlsext_ocsp_ids, id)) {
OCSP_RESPID_free(id);
*al = SSL_AD_INTERNAL_ERROR;
return 0;
}
}
/* Read in request_extensions */
if (!PACKET_as_length_prefixed_2(&extension, &exts))
return 0;
if (PACKET_remaining(&exts) > 0) {
ext_data = PACKET_data(&exts);
sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
X509_EXTENSION_free);
s->tlsext_ocsp_exts =
d2i_X509_EXTENSIONS(NULL, &ext_data,
PACKET_remaining(&exts));
if (s->tlsext_ocsp_exts == NULL
|| ext_data != PACKET_end(&exts)) {
return 0;
}
}
} else
#endif
{
/*
* We don't know what to do with any other type so ignore it.
*/
s->tlsext_status_type = -1;
}
}
#ifndef OPENSSL_NO_HEARTBEATS
else if (SSL_IS_DTLS(s) && type == TLSEXT_TYPE_heartbeat) {
unsigned int hbtype;
if (!PACKET_get_1(&extension, &hbtype)
|| PACKET_remaining(&extension)) {
*al = SSL_AD_DECODE_ERROR;
return 0;
}
switch (hbtype) {
case 0x01: /* Client allows us to send HB requests */
s->tlsext_heartbeat |= SSL_DTLSEXT_HB_ENABLED;
break;
case 0x02: /* Client doesn't accept HB requests */
s->tlsext_heartbeat |= SSL_DTLSEXT_HB_ENABLED;
s->tlsext_heartbeat |= SSL_DTLSEXT_HB_DONT_SEND_REQUESTS;
break;
default:
*al = SSL_AD_ILLEGAL_PARAMETER;
return 0;
}
}
#endif
#ifndef OPENSSL_NO_NEXTPROTONEG
else if (type == TLSEXT_TYPE_next_proto_neg &&
s->s3->tmp.finish_md_len == 0) {
/*-
* We shouldn't accept this extension on a
* renegotiation.
*
* s->new_session will be set on renegotiation, but we
* probably shouldn't rely that it couldn't be set on
* the initial renegotiation too in certain cases (when
* there's some other reason to disallow resuming an
* earlier session -- the current code won't be doing
* anything like that, but this might change).
*
* A valid sign that there's been a previous handshake
* in this connection is if s->s3->tmp.finish_md_len >
* 0. (We are talking about a check that will happen
* in the Hello protocol round, well before a new
* Finished message could have been computed.)
*/
s->s3->next_proto_neg_seen = 1;
}
#endif
else if (type == TLSEXT_TYPE_application_layer_protocol_negotiation &&
s->s3->tmp.finish_md_len == 0) {
if (!tls1_alpn_handle_client_hello(s, &extension, al))
return 0;
}
/* session ticket processed earlier */
#ifndef OPENSSL_NO_SRTP
else if (SSL_IS_DTLS(s) && SSL_get_srtp_profiles(s)
&& type == TLSEXT_TYPE_use_srtp) {
if (ssl_parse_clienthello_use_srtp_ext(s, &extension, al))
return 0;
}
#endif
else if (type == TLSEXT_TYPE_encrypt_then_mac)
s->tlsext_use_etm = 1;
/*
* Note: extended master secret extension handled in
* tls_check_serverhello_tlsext_early()
*/
/*
* If this ClientHello extension was unhandled and this is a
* nonresumed connection, check whether the extension is a custom
* TLS Extension (has a custom_srv_ext_record), and if so call the
* callback and record the extension number so that an appropriate
* ServerHello may be later returned.
*/
else if (!s->hit) {
if (custom_ext_parse(s, 1, type, PACKET_data(&extension),
PACKET_remaining(&extension), al) <= 0)
return 0;
}
}
if (PACKET_remaining(pkt) != 0) {
/*
* tls1_check_duplicate_extensions should ensure this never happens.
*/
*al = SSL_AD_INTERNAL_ERROR;
return 0;
}
ri_check:
/* Need RI if renegotiating */
if (!renegotiate_seen && s->renegotiate &&
!(s->options & SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION)) {
*al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL_SCAN_CLIENTHELLO_TLSEXT,
SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED);
return 0;
}
/*
* This function currently has no state to clean up, so it returns directly.
* If parsing fails at any point, the function returns early.
* The SSL object may be left with partial data from extensions, but it must
* then no longer be used, and clearing it up will free the leftovers.
*/
return 1;
} | static int ssl_scan_clienthello_tlsext(SSL *s, PACKET *pkt, int *al)
{
unsigned int type;
int renegotiate_seen = 0;
PACKET extensions;
*al = SSL_AD_DECODE_ERROR;
s->servername_done = 0;
s->tlsext_status_type = -1;
#ifndef OPENSSL_NO_NEXTPROTONEG
s->s3->next_proto_neg_seen = 0;
#endif
OPENSSL_free(s->s3->alpn_selected);
s->s3->alpn_selected = NULL;
s->s3->alpn_selected_len = 0;
OPENSSL_free(s->s3->alpn_proposed);
s->s3->alpn_proposed = NULL;
s->s3->alpn_proposed_len = 0;
#ifndef OPENSSL_NO_HEARTBEATS
s->tlsext_heartbeat &= ~(SSL_DTLSEXT_HB_ENABLED |
SSL_DTLSEXT_HB_DONT_SEND_REQUESTS);
#endif
#ifndef OPENSSL_NO_EC
if (s->options & SSL_OP_SAFARI_ECDHE_ECDSA_BUG)
ssl_check_for_safari(s, pkt);
#endif
OPENSSL_free(s->s3->tmp.peer_sigalgs);
s->s3->tmp.peer_sigalgs = NULL;
s->tlsext_use_etm = 0;
#ifndef OPENSSL_NO_SRP
OPENSSL_free(s->srp_ctx.login);
s->srp_ctx.login = NULL;
#endif
s->srtp_profile = NULL;
if (PACKET_remaining(pkt) == 0)
goto ri_check;
if (!PACKET_as_length_prefixed_2(pkt, &extensions))
return 0;
if (!tls1_check_duplicate_extensions(&extensions))
return 0;
while (PACKET_get_net_2(&extensions, &type)) {
PACKET extension;
if (!PACKET_get_length_prefixed_2(&extensions, &extension))
return 0;
if (s->tlsext_debug_cb)
s->tlsext_debug_cb(s, 0, type, PACKET_data(&extension),
PACKET_remaining(&extension),
s->tlsext_debug_arg);
if (type == TLSEXT_TYPE_renegotiate) {
if (!ssl_parse_clienthello_renegotiate_ext(s, &extension, al))
return 0;
renegotiate_seen = 1;
} else if (s->version == SSL3_VERSION) {
}
else if (type == TLSEXT_TYPE_server_name) {
unsigned int servname_type;
PACKET sni, hostname;
if (!PACKET_as_length_prefixed_2(&extension, &sni)
|| PACKET_remaining(&sni) == 0) {
return 0;
}
if (!PACKET_get_1(&sni, &servname_type)
|| servname_type != TLSEXT_NAMETYPE_host_name
|| !PACKET_as_length_prefixed_2(&sni, &hostname)) {
return 0;
}
if (!s->hit) {
if (PACKET_remaining(&hostname) > TLSEXT_MAXLEN_host_name) {
*al = TLS1_AD_UNRECOGNIZED_NAME;
return 0;
}
if (PACKET_contains_zero_byte(&hostname)) {
*al = TLS1_AD_UNRECOGNIZED_NAME;
return 0;
}
if (!PACKET_strndup(&hostname, &s->session->tlsext_hostname)) {
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
s->servername_done = 1;
} else {
s->servername_done = s->session->tlsext_hostname
&& PACKET_equal(&hostname, s->session->tlsext_hostname,
strlen(s->session->tlsext_hostname));
}
}
#ifndef OPENSSL_NO_SRP
else if (type == TLSEXT_TYPE_srp) {
PACKET srp_I;
if (!PACKET_as_length_prefixed_1(&extension, &srp_I))
return 0;
if (PACKET_contains_zero_byte(&srp_I))
return 0;
if (!PACKET_strndup(&srp_I, &s->srp_ctx.login)) {
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
}
#endif
#ifndef OPENSSL_NO_EC
else if (type == TLSEXT_TYPE_ec_point_formats) {
PACKET ec_point_format_list;
if (!PACKET_as_length_prefixed_1(&extension, &ec_point_format_list)
|| PACKET_remaining(&ec_point_format_list) == 0) {
return 0;
}
if (!s->hit) {
if (!PACKET_memdup(&ec_point_format_list,
&s->session->tlsext_ecpointformatlist,
&s->
session->tlsext_ecpointformatlist_length)) {
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
}
} else if (type == TLSEXT_TYPE_elliptic_curves) {
PACKET elliptic_curve_list;
if (!PACKET_as_length_prefixed_2(&extension, &elliptic_curve_list)
|| PACKET_remaining(&elliptic_curve_list) == 0
|| (PACKET_remaining(&elliptic_curve_list) % 2) != 0) {
return 0;
}
if (!s->hit) {
if (!PACKET_memdup(&elliptic_curve_list,
&s->session->tlsext_ellipticcurvelist,
&s->
session->tlsext_ellipticcurvelist_length)) {
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
}
}
#endif
else if (type == TLSEXT_TYPE_session_ticket) {
if (s->tls_session_ticket_ext_cb &&
!s->tls_session_ticket_ext_cb(s, PACKET_data(&extension),
PACKET_remaining(&extension),
s->tls_session_ticket_ext_cb_arg))
{
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
} else if (type == TLSEXT_TYPE_signature_algorithms) {
PACKET supported_sig_algs;
if (!PACKET_as_length_prefixed_2(&extension, &supported_sig_algs)
|| (PACKET_remaining(&supported_sig_algs) % 2) != 0
|| PACKET_remaining(&supported_sig_algs) == 0) {
return 0;
}
if (!s->hit) {
if (!tls1_save_sigalgs(s, PACKET_data(&supported_sig_algs),
PACKET_remaining(&supported_sig_algs))) {
return 0;
}
}
} else if (type == TLSEXT_TYPE_status_request) {
if (!PACKET_get_1(&extension,
(unsigned int *)&s->tlsext_status_type)) {
return 0;
}
#ifndef OPENSSL_NO_OCSP
if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp) {
const unsigned char *ext_data;
PACKET responder_id_list, exts;
if (!PACKET_get_length_prefixed_2
(&extension, &responder_id_list))
return 0;
sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids,
OCSP_RESPID_free);
if (PACKET_remaining(&responder_id_list) > 0) {
s->tlsext_ocsp_ids = sk_OCSP_RESPID_new_null();
if (s->tlsext_ocsp_ids == NULL) {
*al = SSL_AD_INTERNAL_ERROR;
return 0;
}
} else {
s->tlsext_ocsp_ids = NULL;
}
while (PACKET_remaining(&responder_id_list) > 0) {
OCSP_RESPID *id;
PACKET responder_id;
const unsigned char *id_data;
if (!PACKET_get_length_prefixed_2(&responder_id_list,
&responder_id)
|| PACKET_remaining(&responder_id) == 0) {
return 0;
}
id_data = PACKET_data(&responder_id);
id = d2i_OCSP_RESPID(NULL, &id_data,
PACKET_remaining(&responder_id));
if (id == NULL)
return 0;
if (id_data != PACKET_end(&responder_id)) {
OCSP_RESPID_free(id);
return 0;
}
if (!sk_OCSP_RESPID_push(s->tlsext_ocsp_ids, id)) {
OCSP_RESPID_free(id);
*al = SSL_AD_INTERNAL_ERROR;
return 0;
}
}
if (!PACKET_as_length_prefixed_2(&extension, &exts))
return 0;
if (PACKET_remaining(&exts) > 0) {
ext_data = PACKET_data(&exts);
sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
X509_EXTENSION_free);
s->tlsext_ocsp_exts =
d2i_X509_EXTENSIONS(NULL, &ext_data,
PACKET_remaining(&exts));
if (s->tlsext_ocsp_exts == NULL
|| ext_data != PACKET_end(&exts)) {
return 0;
}
}
} else
#endif
{
s->tlsext_status_type = -1;
}
}
#ifndef OPENSSL_NO_HEARTBEATS
else if (SSL_IS_DTLS(s) && type == TLSEXT_TYPE_heartbeat) {
unsigned int hbtype;
if (!PACKET_get_1(&extension, &hbtype)
|| PACKET_remaining(&extension)) {
*al = SSL_AD_DECODE_ERROR;
return 0;
}
switch (hbtype) {
case 0x01:
s->tlsext_heartbeat |= SSL_DTLSEXT_HB_ENABLED;
break;
case 0x02:
s->tlsext_heartbeat |= SSL_DTLSEXT_HB_ENABLED;
s->tlsext_heartbeat |= SSL_DTLSEXT_HB_DONT_SEND_REQUESTS;
break;
default:
*al = SSL_AD_ILLEGAL_PARAMETER;
return 0;
}
}
#endif
#ifndef OPENSSL_NO_NEXTPROTONEG
else if (type == TLSEXT_TYPE_next_proto_neg &&
s->s3->tmp.finish_md_len == 0) {
s->s3->next_proto_neg_seen = 1;
}
#endif
else if (type == TLSEXT_TYPE_application_layer_protocol_negotiation &&
s->s3->tmp.finish_md_len == 0) {
if (!tls1_alpn_handle_client_hello(s, &extension, al))
return 0;
}
#ifndef OPENSSL_NO_SRTP
else if (SSL_IS_DTLS(s) && SSL_get_srtp_profiles(s)
&& type == TLSEXT_TYPE_use_srtp) {
if (ssl_parse_clienthello_use_srtp_ext(s, &extension, al))
return 0;
}
#endif
else if (type == TLSEXT_TYPE_encrypt_then_mac)
s->tlsext_use_etm = 1;
else if (!s->hit) {
if (custom_ext_parse(s, 1, type, PACKET_data(&extension),
PACKET_remaining(&extension), al) <= 0)
return 0;
}
}
if (PACKET_remaining(pkt) != 0) {
*al = SSL_AD_INTERNAL_ERROR;
return 0;
}
ri_check:
if (!renegotiate_seen && s->renegotiate &&
!(s->options & SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION)) {
*al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL_SCAN_CLIENTHELLO_TLSEXT,
SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED);
return 0;
}
return 1;
} | 367,592 |
0 | static int tls_decrypt_ticket(SSL *s, const unsigned char *etick,
int eticklen, const unsigned char *sess_id,
int sesslen, SSL_SESSION **psess)
{
SSL_SESSION *sess;
unsigned char *sdec;
const unsigned char *p;
int slen, mlen, renew_ticket = 0, ret = -1;
unsigned char tick_hmac[EVP_MAX_MD_SIZE];
HMAC_CTX *hctx = NULL;
EVP_CIPHER_CTX *ctx;
SSL_CTX *tctx = s->session_ctx;
/* Initialize session ticket encryption and HMAC contexts */
hctx = HMAC_CTX_new();
if (hctx == NULL)
return -2;
ctx = EVP_CIPHER_CTX_new();
if (ctx == NULL) {
ret = -2;
goto err;
}
if (tctx->tlsext_ticket_key_cb) {
unsigned char *nctick = (unsigned char *)etick;
int rv = tctx->tlsext_ticket_key_cb(s, nctick, nctick + 16,
ctx, hctx, 0);
if (rv < 0)
goto err;
if (rv == 0) {
ret = 2;
goto err;
}
if (rv == 2)
renew_ticket = 1;
} else {
/* Check key name matches */
if (memcmp(etick, tctx->tlsext_tick_key_name,
sizeof(tctx->tlsext_tick_key_name)) != 0) {
ret = 2;
goto err;
}
if (HMAC_Init_ex(hctx, tctx->tlsext_tick_hmac_key,
sizeof(tctx->tlsext_tick_hmac_key),
EVP_sha256(), NULL) <= 0
|| EVP_DecryptInit_ex(ctx, EVP_aes_256_cbc(), NULL,
tctx->tlsext_tick_aes_key,
etick + sizeof(tctx->tlsext_tick_key_name)) <=
0) {
goto err;
}
}
/*
* Attempt to process session ticket, first conduct sanity and integrity
* checks on ticket.
*/
mlen = HMAC_size(hctx);
if (mlen < 0) {
goto err;
}
/* Sanity check ticket length: must exceed keyname + IV + HMAC */
if (eticklen <=
TLSEXT_KEYNAME_LENGTH + EVP_CIPHER_CTX_iv_length(ctx) + mlen) {
ret = 2;
goto err;
}
eticklen -= mlen;
/* Check HMAC of encrypted ticket */
if (HMAC_Update(hctx, etick, eticklen) <= 0
|| HMAC_Final(hctx, tick_hmac, NULL) <= 0) {
goto err;
}
HMAC_CTX_free(hctx);
if (CRYPTO_memcmp(tick_hmac, etick + eticklen, mlen)) {
EVP_CIPHER_CTX_free(ctx);
return 2;
}
/* Attempt to decrypt session data */
/* Move p after IV to start of encrypted ticket, update length */
p = etick + TLSEXT_KEYNAME_LENGTH + EVP_CIPHER_CTX_iv_length(ctx);
eticklen -= TLSEXT_KEYNAME_LENGTH + EVP_CIPHER_CTX_iv_length(ctx);
sdec = OPENSSL_malloc(eticklen);
if (sdec == NULL || EVP_DecryptUpdate(ctx, sdec, &slen, p, eticklen) <= 0) {
EVP_CIPHER_CTX_free(ctx);
OPENSSL_free(sdec);
return -1;
}
if (EVP_DecryptFinal(ctx, sdec + slen, &mlen) <= 0) {
EVP_CIPHER_CTX_free(ctx);
OPENSSL_free(sdec);
return 2;
}
slen += mlen;
EVP_CIPHER_CTX_free(ctx);
ctx = NULL;
p = sdec;
sess = d2i_SSL_SESSION(NULL, &p, slen);
OPENSSL_free(sdec);
if (sess) {
/*
* The session ID, if non-empty, is used by some clients to detect
* that the ticket has been accepted. So we copy it to the session
* structure. If it is empty set length to zero as required by
* standard.
*/
if (sesslen)
memcpy(sess->session_id, sess_id, sesslen);
sess->session_id_length = sesslen;
*psess = sess;
if (renew_ticket)
return 4;
else
return 3;
}
ERR_clear_error();
/*
* For session parse failure, indicate that we need to send a new ticket.
*/
return 2;
err:
EVP_CIPHER_CTX_free(ctx);
HMAC_CTX_free(hctx);
return ret;
} | static int tls_decrypt_ticket(SSL *s, const unsigned char *etick,
int eticklen, const unsigned char *sess_id,
int sesslen, SSL_SESSION **psess)
{
SSL_SESSION *sess;
unsigned char *sdec;
const unsigned char *p;
int slen, mlen, renew_ticket = 0, ret = -1;
unsigned char tick_hmac[EVP_MAX_MD_SIZE];
HMAC_CTX *hctx = NULL;
EVP_CIPHER_CTX *ctx;
SSL_CTX *tctx = s->session_ctx;
hctx = HMAC_CTX_new();
if (hctx == NULL)
return -2;
ctx = EVP_CIPHER_CTX_new();
if (ctx == NULL) {
ret = -2;
goto err;
}
if (tctx->tlsext_ticket_key_cb) {
unsigned char *nctick = (unsigned char *)etick;
int rv = tctx->tlsext_ticket_key_cb(s, nctick, nctick + 16,
ctx, hctx, 0);
if (rv < 0)
goto err;
if (rv == 0) {
ret = 2;
goto err;
}
if (rv == 2)
renew_ticket = 1;
} else {
if (memcmp(etick, tctx->tlsext_tick_key_name,
sizeof(tctx->tlsext_tick_key_name)) != 0) {
ret = 2;
goto err;
}
if (HMAC_Init_ex(hctx, tctx->tlsext_tick_hmac_key,
sizeof(tctx->tlsext_tick_hmac_key),
EVP_sha256(), NULL) <= 0
|| EVP_DecryptInit_ex(ctx, EVP_aes_256_cbc(), NULL,
tctx->tlsext_tick_aes_key,
etick + sizeof(tctx->tlsext_tick_key_name)) <=
0) {
goto err;
}
}
mlen = HMAC_size(hctx);
if (mlen < 0) {
goto err;
}
if (eticklen <=
TLSEXT_KEYNAME_LENGTH + EVP_CIPHER_CTX_iv_length(ctx) + mlen) {
ret = 2;
goto err;
}
eticklen -= mlen;
if (HMAC_Update(hctx, etick, eticklen) <= 0
|| HMAC_Final(hctx, tick_hmac, NULL) <= 0) {
goto err;
}
HMAC_CTX_free(hctx);
if (CRYPTO_memcmp(tick_hmac, etick + eticklen, mlen)) {
EVP_CIPHER_CTX_free(ctx);
return 2;
}
p = etick + TLSEXT_KEYNAME_LENGTH + EVP_CIPHER_CTX_iv_length(ctx);
eticklen -= TLSEXT_KEYNAME_LENGTH + EVP_CIPHER_CTX_iv_length(ctx);
sdec = OPENSSL_malloc(eticklen);
if (sdec == NULL || EVP_DecryptUpdate(ctx, sdec, &slen, p, eticklen) <= 0) {
EVP_CIPHER_CTX_free(ctx);
OPENSSL_free(sdec);
return -1;
}
if (EVP_DecryptFinal(ctx, sdec + slen, &mlen) <= 0) {
EVP_CIPHER_CTX_free(ctx);
OPENSSL_free(sdec);
return 2;
}
slen += mlen;
EVP_CIPHER_CTX_free(ctx);
ctx = NULL;
p = sdec;
sess = d2i_SSL_SESSION(NULL, &p, slen);
OPENSSL_free(sdec);
if (sess) {
if (sesslen)
memcpy(sess->session_id, sess_id, sesslen);
sess->session_id_length = sesslen;
*psess = sess;
if (renew_ticket)
return 4;
else
return 3;
}
ERR_clear_error();
return 2;
err:
EVP_CIPHER_CTX_free(ctx);
HMAC_CTX_free(hctx);
return ret;
} | 367,593 |
0 | int ssl3_get_cert_status(SSL *s)
{
int ok, al;
unsigned long resplen, n;
const unsigned char *p;
n = s->method->ssl_get_message(s,
SSL3_ST_CR_CERT_STATUS_A,
SSL3_ST_CR_CERT_STATUS_B,
SSL3_MT_CERTIFICATE_STATUS, 16384, &ok);
if (!ok)
return ((int)n);
if (n < 4) {
/* need at least status type + length */
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
p = (unsigned char *)s->init_msg;
if (*p++ != TLSEXT_STATUSTYPE_ocsp) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, SSL_R_UNSUPPORTED_STATUS_TYPE);
goto f_err;
}
n2l3(p, resplen);
if (resplen + 4 != n) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
OPENSSL_free(s->tlsext_ocsp_resp);
s->tlsext_ocsp_resp = BUF_memdup(p, resplen);
if (!s->tlsext_ocsp_resp) {
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, ERR_R_MALLOC_FAILURE);
goto f_err;
}
s->tlsext_ocsp_resplen = resplen;
if (s->ctx->tlsext_status_cb) {
int ret;
ret = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
if (ret == 0) {
al = SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, SSL_R_INVALID_STATUS_RESPONSE);
goto f_err;
}
if (ret < 0) {
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, ERR_R_MALLOC_FAILURE);
goto f_err;
}
}
return 1;
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
s->state = SSL_ST_ERR;
return (-1);
} | int ssl3_get_cert_status(SSL *s)
{
int ok, al;
unsigned long resplen, n;
const unsigned char *p;
n = s->method->ssl_get_message(s,
SSL3_ST_CR_CERT_STATUS_A,
SSL3_ST_CR_CERT_STATUS_B,
SSL3_MT_CERTIFICATE_STATUS, 16384, &ok);
if (!ok)
return ((int)n);
if (n < 4) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
p = (unsigned char *)s->init_msg;
if (*p++ != TLSEXT_STATUSTYPE_ocsp) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, SSL_R_UNSUPPORTED_STATUS_TYPE);
goto f_err;
}
n2l3(p, resplen);
if (resplen + 4 != n) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
OPENSSL_free(s->tlsext_ocsp_resp);
s->tlsext_ocsp_resp = BUF_memdup(p, resplen);
if (!s->tlsext_ocsp_resp) {
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, ERR_R_MALLOC_FAILURE);
goto f_err;
}
s->tlsext_ocsp_resplen = resplen;
if (s->ctx->tlsext_status_cb) {
int ret;
ret = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
if (ret == 0) {
al = SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, SSL_R_INVALID_STATUS_RESPONSE);
goto f_err;
}
if (ret < 0) {
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_GET_CERT_STATUS, ERR_R_MALLOC_FAILURE);
goto f_err;
}
}
return 1;
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
s->state = SSL_ST_ERR;
return (-1);
} | 367,594 |
0 | static int ssl_set_version(SSL *s)
{
unsigned long mask, options = s->options;
if (s->method->version == TLS_ANY_VERSION) {
/*
* SSL_OP_NO_X disables all protocols above X *if* there are
* some protocols below X enabled. This is required in order
* to maintain "version capability" vector contiguous. So
* that if application wants to disable TLS1.0 in favour of
* TLS1>=1, it would be insufficient to pass SSL_NO_TLSv1, the
* answer is SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3.
*/
mask = SSL_OP_NO_TLSv1_1 | SSL_OP_NO_TLSv1
#if !defined(OPENSSL_NO_SSL3)
| SSL_OP_NO_SSLv3
#endif
;
#if !defined(OPENSSL_NO_TLS1_2_CLIENT)
if (options & SSL_OP_NO_TLSv1_2) {
if ((options & mask) != mask) {
s->version = TLS1_1_VERSION;
} else {
SSLerr(SSL_F_SSL_SET_VERSION, SSL_R_NO_PROTOCOLS_AVAILABLE);
return 0;
}
} else {
s->version = TLS1_2_VERSION;
}
#else
if ((options & mask) == mask) {
SSLerr(SSL_F_SSL_SET_VERSION, SSL_R_NO_PROTOCOLS_AVAILABLE);
return 0;
}
s->version = TLS1_1_VERSION;
#endif
mask &= ~SSL_OP_NO_TLSv1_1;
if ((options & SSL_OP_NO_TLSv1_1) && (options & mask) != mask)
s->version = TLS1_VERSION;
mask &= ~SSL_OP_NO_TLSv1;
#if !defined(OPENSSL_NO_SSL3)
if ((options & SSL_OP_NO_TLSv1) && (options & mask) != mask)
s->version = SSL3_VERSION;
#endif
if (s->version != TLS1_2_VERSION && tls1_suiteb(s)) {
SSLerr(SSL_F_SSL_SET_VERSION,
SSL_R_ONLY_TLS_1_2_ALLOWED_IN_SUITEB_MODE);
return 0;
}
if (s->version == SSL3_VERSION && FIPS_mode()) {
SSLerr(SSL_F_SSL_SET_VERSION, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
return 0;
}
} else if (s->method->version == DTLS_ANY_VERSION) {
/* Determine which DTLS version to use */
/* If DTLS 1.2 disabled correct the version number */
if (options & SSL_OP_NO_DTLSv1_2) {
if (tls1_suiteb(s)) {
SSLerr(SSL_F_SSL_SET_VERSION,
SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE);
return 0;
}
/*
* Disabling all versions is silly: return an error.
*/
if (options & SSL_OP_NO_DTLSv1) {
SSLerr(SSL_F_SSL_SET_VERSION, SSL_R_WRONG_SSL_VERSION);
return 0;
}
/*
* Update method so we don't use any DTLS 1.2 features.
*/
s->method = DTLSv1_client_method();
s->version = DTLS1_VERSION;
} else {
/*
* We only support one version: update method
*/
if (options & SSL_OP_NO_DTLSv1)
s->method = DTLSv1_2_client_method();
s->version = DTLS1_2_VERSION;
}
}
s->client_version = s->version;
return 1;
} | static int ssl_set_version(SSL *s)
{
unsigned long mask, options = s->options;
if (s->method->version == TLS_ANY_VERSION) {
mask = SSL_OP_NO_TLSv1_1 | SSL_OP_NO_TLSv1
#if !defined(OPENSSL_NO_SSL3)
| SSL_OP_NO_SSLv3
#endif
;
#if !defined(OPENSSL_NO_TLS1_2_CLIENT)
if (options & SSL_OP_NO_TLSv1_2) {
if ((options & mask) != mask) {
s->version = TLS1_1_VERSION;
} else {
SSLerr(SSL_F_SSL_SET_VERSION, SSL_R_NO_PROTOCOLS_AVAILABLE);
return 0;
}
} else {
s->version = TLS1_2_VERSION;
}
#else
if ((options & mask) == mask) {
SSLerr(SSL_F_SSL_SET_VERSION, SSL_R_NO_PROTOCOLS_AVAILABLE);
return 0;
}
s->version = TLS1_1_VERSION;
#endif
mask &= ~SSL_OP_NO_TLSv1_1;
if ((options & SSL_OP_NO_TLSv1_1) && (options & mask) != mask)
s->version = TLS1_VERSION;
mask &= ~SSL_OP_NO_TLSv1;
#if !defined(OPENSSL_NO_SSL3)
if ((options & SSL_OP_NO_TLSv1) && (options & mask) != mask)
s->version = SSL3_VERSION;
#endif
if (s->version != TLS1_2_VERSION && tls1_suiteb(s)) {
SSLerr(SSL_F_SSL_SET_VERSION,
SSL_R_ONLY_TLS_1_2_ALLOWED_IN_SUITEB_MODE);
return 0;
}
if (s->version == SSL3_VERSION && FIPS_mode()) {
SSLerr(SSL_F_SSL_SET_VERSION, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
return 0;
}
} else if (s->method->version == DTLS_ANY_VERSION) {
if (options & SSL_OP_NO_DTLSv1_2) {
if (tls1_suiteb(s)) {
SSLerr(SSL_F_SSL_SET_VERSION,
SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE);
return 0;
}
if (options & SSL_OP_NO_DTLSv1) {
SSLerr(SSL_F_SSL_SET_VERSION, SSL_R_WRONG_SSL_VERSION);
return 0;
}
s->method = DTLSv1_client_method();
s->version = DTLS1_VERSION;
} else {
if (options & SSL_OP_NO_DTLSv1)
s->method = DTLSv1_2_client_method();
s->version = DTLS1_2_VERSION;
}
}
s->client_version = s->version;
return 1;
} | 367,595 |
0 | int ssl3_get_server_hello(SSL *s)
{
STACK_OF(SSL_CIPHER) *sk;
const SSL_CIPHER *c;
unsigned char *p, *d;
int i, al = SSL_AD_INTERNAL_ERROR, ok;
unsigned int j;
long n;
#ifndef OPENSSL_NO_COMP
SSL_COMP *comp;
#endif
/*
* Hello verify request and/or server hello version may not match so set
* first packet if we're negotiating version.
*/
s->first_packet = 1;
n = s->method->ssl_get_message(s,
SSL3_ST_CR_SRVR_HELLO_A,
SSL3_ST_CR_SRVR_HELLO_B, -1, 20000, &ok);
if (!ok)
return ((int)n);
s->first_packet = 0;
if (SSL_IS_DTLS(s)) {
if (s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST) {
if (s->d1->send_cookie == 0) {
s->s3->tmp.reuse_message = 1;
return 1;
} else { /* already sent a cookie */
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_BAD_MESSAGE_TYPE);
goto f_err;
}
}
}
if (s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_BAD_MESSAGE_TYPE);
goto f_err;
}
d = p = (unsigned char *)s->init_msg;
if (s->method->version == TLS_ANY_VERSION) {
int sversion = (p[0] << 8) | p[1];
#if TLS_MAX_VERSION != TLS1_2_VERSION
#error Code needs updating for new TLS version
#endif
#ifndef OPENSSL_NO_SSL3
if ((sversion == SSL3_VERSION) && !(s->options & SSL_OP_NO_SSLv3)) {
if (FIPS_mode()) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
s->method = SSLv3_client_method();
} else
#endif
if ((sversion == TLS1_VERSION) && !(s->options & SSL_OP_NO_TLSv1)) {
s->method = TLSv1_client_method();
} else if ((sversion == TLS1_1_VERSION) &&
!(s->options & SSL_OP_NO_TLSv1_1)) {
s->method = TLSv1_1_client_method();
} else if ((sversion == TLS1_2_VERSION) &&
!(s->options & SSL_OP_NO_TLSv1_2)) {
s->method = TLSv1_2_client_method();
} else {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_UNSUPPORTED_PROTOCOL);
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
s->session->ssl_version = s->version = s->method->version;
if (!ssl_security(s, SSL_SECOP_VERSION, 0, s->version, NULL)) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_VERSION_TOO_LOW);
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
} else if (s->method->version == DTLS_ANY_VERSION) {
/* Work out correct protocol version to use */
int hversion = (p[0] << 8) | p[1];
int options = s->options;
if (hversion == DTLS1_2_VERSION && !(options & SSL_OP_NO_DTLSv1_2))
s->method = DTLSv1_2_client_method();
else if (tls1_suiteb(s)) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE);
s->version = hversion;
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
} else if (hversion == DTLS1_VERSION && !(options & SSL_OP_NO_DTLSv1))
s->method = DTLSv1_client_method();
else {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_WRONG_SSL_VERSION);
s->version = hversion;
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
s->version = s->method->version;
} else if ((p[0] != (s->version >> 8)) || (p[1] != (s->version & 0xff))) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_WRONG_SSL_VERSION);
s->version = (s->version & 0xff00) | p[1];
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
p += 2;
/* load the server hello data */
/* load the server random */
memcpy(s->s3->server_random, p, SSL3_RANDOM_SIZE);
p += SSL3_RANDOM_SIZE;
s->hit = 0;
/* get the session-id */
j = *(p++);
if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE)) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_SSL3_SESSION_ID_TOO_LONG);
goto f_err;
}
/*
* Check if we can resume the session based on external pre-shared secret.
* EAP-FAST (RFC 4851) supports two types of session resumption.
* Resumption based on server-side state works with session IDs.
* Resumption based on pre-shared Protected Access Credentials (PACs)
* works by overriding the SessionTicket extension at the application
* layer, and does not send a session ID. (We do not know whether EAP-FAST
* servers would honour the session ID.) Therefore, the session ID alone
* is not a reliable indicator of session resumption, so we first check if
* we can resume, and later peek at the next handshake message to see if the
* server wants to resume.
*/
if (s->version >= TLS1_VERSION && s->tls_session_secret_cb &&
s->session->tlsext_tick) {
SSL_CIPHER *pref_cipher = NULL;
s->session->master_key_length = sizeof(s->session->master_key);
if (s->tls_session_secret_cb(s, s->session->master_key,
&s->session->master_key_length,
NULL, &pref_cipher,
s->tls_session_secret_cb_arg)) {
s->session->cipher = pref_cipher ?
pref_cipher : ssl_get_cipher_by_char(s, p + j);
} else {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
al = SSL_AD_INTERNAL_ERROR;
goto f_err;
}
}
if (j != 0 && j == s->session->session_id_length
&& memcmp(p, s->session->session_id, j) == 0) {
if (s->sid_ctx_length != s->session->sid_ctx_length
|| memcmp(s->session->sid_ctx, s->sid_ctx, s->sid_ctx_length)) {
/* actually a client application bug */
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
goto f_err;
}
s->hit = 1;
} else {
/*
* If we were trying for session-id reuse but the server
* didn't echo the ID, make a new SSL_SESSION.
* In the case of EAP-FAST and PAC, we do not send a session ID,
* so the PAC-based session secret is always preserved. It'll be
* overwritten if the server refuses resumption.
*/
if (s->session->session_id_length > 0) {
if (!ssl_get_new_session(s, 0)) {
goto f_err;
}
}
s->session->session_id_length = j;
memcpy(s->session->session_id, p, j); /* j could be 0 */
}
p += j;
c = ssl_get_cipher_by_char(s, p);
if (c == NULL) {
/* unknown cipher */
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_UNKNOWN_CIPHER_RETURNED);
goto f_err;
}
/* Set version disabled mask now we know version */
if (!SSL_USE_TLS1_2_CIPHERS(s))
s->s3->tmp.mask_ssl = SSL_TLSV1_2;
else
s->s3->tmp.mask_ssl = 0;
/*
* If it is a disabled cipher we didn't send it in client hello, so
* return an error.
*/
if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_CHECK)) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_WRONG_CIPHER_RETURNED);
goto f_err;
}
p += ssl_put_cipher_by_char(s, NULL, NULL);
sk = ssl_get_ciphers_by_id(s);
i = sk_SSL_CIPHER_find(sk, c);
if (i < 0) {
/* we did not say we would use this cipher */
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_WRONG_CIPHER_RETURNED);
goto f_err;
}
/*
* Depending on the session caching (internal/external), the cipher
* and/or cipher_id values may not be set. Make sure that cipher_id is
* set and use it for comparison.
*/
if (s->session->cipher)
s->session->cipher_id = s->session->cipher->id;
if (s->hit && (s->session->cipher_id != c->id)) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
goto f_err;
}
s->s3->tmp.new_cipher = c;
/*
* Don't digest cached records if no sigalgs: we may need them for client
* authentication.
*/
if (!SSL_USE_SIGALGS(s) && !ssl3_digest_cached_records(s))
goto f_err;
/* lets get the compression algorithm */
/* COMPRESSION */
#ifdef OPENSSL_NO_COMP
if (*(p++) != 0) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
goto f_err;
}
/*
* If compression is disabled we'd better not try to resume a session
* using compression.
*/
if (s->session->compress_meth != 0) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_INCONSISTENT_COMPRESSION);
goto f_err;
}
#else
j = *(p++);
if (s->hit && j != s->session->compress_meth) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_OLD_SESSION_COMPRESSION_ALGORITHM_NOT_RETURNED);
goto f_err;
}
if (j == 0)
comp = NULL;
else if (!ssl_allow_compression(s)) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_COMPRESSION_DISABLED);
goto f_err;
} else
comp = ssl3_comp_find(s->ctx->comp_methods, j);
if ((j != 0) && (comp == NULL)) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
goto f_err;
} else {
s->s3->tmp.new_compression = comp;
}
#endif
/* TLS extensions */
if (!ssl_parse_serverhello_tlsext(s, &p, d, n)) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_PARSE_TLSEXT);
goto err;
}
if (p != (d + n)) {
/* wrong packet length */
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_BAD_PACKET_LENGTH);
goto f_err;
}
return (1);
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
s->state = SSL_ST_ERR;
return (-1);
} | int ssl3_get_server_hello(SSL *s)
{
STACK_OF(SSL_CIPHER) *sk;
const SSL_CIPHER *c;
unsigned char *p, *d;
int i, al = SSL_AD_INTERNAL_ERROR, ok;
unsigned int j;
long n;
#ifndef OPENSSL_NO_COMP
SSL_COMP *comp;
#endif
s->first_packet = 1;
n = s->method->ssl_get_message(s,
SSL3_ST_CR_SRVR_HELLO_A,
SSL3_ST_CR_SRVR_HELLO_B, -1, 20000, &ok);
if (!ok)
return ((int)n);
s->first_packet = 0;
if (SSL_IS_DTLS(s)) {
if (s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST) {
if (s->d1->send_cookie == 0) {
s->s3->tmp.reuse_message = 1;
return 1;
} else {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_BAD_MESSAGE_TYPE);
goto f_err;
}
}
}
if (s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_BAD_MESSAGE_TYPE);
goto f_err;
}
d = p = (unsigned char *)s->init_msg;
if (s->method->version == TLS_ANY_VERSION) {
int sversion = (p[0] << 8) | p[1];
#if TLS_MAX_VERSION != TLS1_2_VERSION
#error Code needs updating for new TLS version
#endif
#ifndef OPENSSL_NO_SSL3
if ((sversion == SSL3_VERSION) && !(s->options & SSL_OP_NO_SSLv3)) {
if (FIPS_mode()) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
s->method = SSLv3_client_method();
} else
#endif
if ((sversion == TLS1_VERSION) && !(s->options & SSL_OP_NO_TLSv1)) {
s->method = TLSv1_client_method();
} else if ((sversion == TLS1_1_VERSION) &&
!(s->options & SSL_OP_NO_TLSv1_1)) {
s->method = TLSv1_1_client_method();
} else if ((sversion == TLS1_2_VERSION) &&
!(s->options & SSL_OP_NO_TLSv1_2)) {
s->method = TLSv1_2_client_method();
} else {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_UNSUPPORTED_PROTOCOL);
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
s->session->ssl_version = s->version = s->method->version;
if (!ssl_security(s, SSL_SECOP_VERSION, 0, s->version, NULL)) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_VERSION_TOO_LOW);
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
} else if (s->method->version == DTLS_ANY_VERSION) {
int hversion = (p[0] << 8) | p[1];
int options = s->options;
if (hversion == DTLS1_2_VERSION && !(options & SSL_OP_NO_DTLSv1_2))
s->method = DTLSv1_2_client_method();
else if (tls1_suiteb(s)) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE);
s->version = hversion;
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
} else if (hversion == DTLS1_VERSION && !(options & SSL_OP_NO_DTLSv1))
s->method = DTLSv1_client_method();
else {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_WRONG_SSL_VERSION);
s->version = hversion;
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
s->version = s->method->version;
} else if ((p[0] != (s->version >> 8)) || (p[1] != (s->version & 0xff))) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_WRONG_SSL_VERSION);
s->version = (s->version & 0xff00) | p[1];
al = SSL_AD_PROTOCOL_VERSION;
goto f_err;
}
p += 2;
memcpy(s->s3->server_random, p, SSL3_RANDOM_SIZE);
p += SSL3_RANDOM_SIZE;
s->hit = 0;
j = *(p++);
if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE)) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_SSL3_SESSION_ID_TOO_LONG);
goto f_err;
}
if (s->version >= TLS1_VERSION && s->tls_session_secret_cb &&
s->session->tlsext_tick) {
SSL_CIPHER *pref_cipher = NULL;
s->session->master_key_length = sizeof(s->session->master_key);
if (s->tls_session_secret_cb(s, s->session->master_key,
&s->session->master_key_length,
NULL, &pref_cipher,
s->tls_session_secret_cb_arg)) {
s->session->cipher = pref_cipher ?
pref_cipher : ssl_get_cipher_by_char(s, p + j);
} else {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
al = SSL_AD_INTERNAL_ERROR;
goto f_err;
}
}
if (j != 0 && j == s->session->session_id_length
&& memcmp(p, s->session->session_id, j) == 0) {
if (s->sid_ctx_length != s->session->sid_ctx_length
|| memcmp(s->session->sid_ctx, s->sid_ctx, s->sid_ctx_length)) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
goto f_err;
}
s->hit = 1;
} else {
if (s->session->session_id_length > 0) {
if (!ssl_get_new_session(s, 0)) {
goto f_err;
}
}
s->session->session_id_length = j;
memcpy(s->session->session_id, p, j);
}
p += j;
c = ssl_get_cipher_by_char(s, p);
if (c == NULL) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_UNKNOWN_CIPHER_RETURNED);
goto f_err;
}
if (!SSL_USE_TLS1_2_CIPHERS(s))
s->s3->tmp.mask_ssl = SSL_TLSV1_2;
else
s->s3->tmp.mask_ssl = 0;
if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_CHECK)) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_WRONG_CIPHER_RETURNED);
goto f_err;
}
p += ssl_put_cipher_by_char(s, NULL, NULL);
sk = ssl_get_ciphers_by_id(s);
i = sk_SSL_CIPHER_find(sk, c);
if (i < 0) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_WRONG_CIPHER_RETURNED);
goto f_err;
}
if (s->session->cipher)
s->session->cipher_id = s->session->cipher->id;
if (s->hit && (s->session->cipher_id != c->id)) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
goto f_err;
}
s->s3->tmp.new_cipher = c;
if (!SSL_USE_SIGALGS(s) && !ssl3_digest_cached_records(s))
goto f_err;
#ifdef OPENSSL_NO_COMP
if (*(p++) != 0) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
goto f_err;
}
if (s->session->compress_meth != 0) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_INCONSISTENT_COMPRESSION);
goto f_err;
}
#else
j = *(p++);
if (s->hit && j != s->session->compress_meth) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_OLD_SESSION_COMPRESSION_ALGORITHM_NOT_RETURNED);
goto f_err;
}
if (j == 0)
comp = NULL;
else if (!ssl_allow_compression(s)) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_COMPRESSION_DISABLED);
goto f_err;
} else
comp = ssl3_comp_find(s->ctx->comp_methods, j);
if ((j != 0) && (comp == NULL)) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,
SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
goto f_err;
} else {
s->s3->tmp.new_compression = comp;
}
#endif
if (!ssl_parse_serverhello_tlsext(s, &p, d, n)) {
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_PARSE_TLSEXT);
goto err;
}
if (p != (d + n)) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_BAD_PACKET_LENGTH);
goto f_err;
}
return (1);
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
s->state = SSL_ST_ERR;
return (-1);
} | 367,596 |
0 | int ssl3_send_client_certificate(SSL *s)
{
X509 *x509 = NULL;
EVP_PKEY *pkey = NULL;
int i;
if (s->state == SSL3_ST_CW_CERT_A) {
/* Let cert callback update client certificates if required */
if (s->cert->cert_cb) {
i = s->cert->cert_cb(s, s->cert->cert_cb_arg);
if (i < 0) {
s->rwstate = SSL_X509_LOOKUP;
return -1;
}
if (i == 0) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
s->state = SSL_ST_ERR;
return 0;
}
s->rwstate = SSL_NOTHING;
}
if (ssl3_check_client_certificate(s))
s->state = SSL3_ST_CW_CERT_C;
else
s->state = SSL3_ST_CW_CERT_B;
}
/* We need to get a client cert */
if (s->state == SSL3_ST_CW_CERT_B) {
/*
* If we get an error, we need to ssl->rwstate=SSL_X509_LOOKUP;
* return(-1); We then get retied later
*/
i = 0;
i = ssl_do_client_cert_cb(s, &x509, &pkey);
if (i < 0) {
s->rwstate = SSL_X509_LOOKUP;
return (-1);
}
s->rwstate = SSL_NOTHING;
if ((i == 1) && (pkey != NULL) && (x509 != NULL)) {
s->state = SSL3_ST_CW_CERT_B;
if (!SSL_use_certificate(s, x509) || !SSL_use_PrivateKey(s, pkey))
i = 0;
} else if (i == 1) {
i = 0;
SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,
SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
}
X509_free(x509);
EVP_PKEY_free(pkey);
if (i && !ssl3_check_client_certificate(s))
i = 0;
if (i == 0) {
if (s->version == SSL3_VERSION) {
s->s3->tmp.cert_req = 0;
ssl3_send_alert(s, SSL3_AL_WARNING, SSL_AD_NO_CERTIFICATE);
return (1);
} else {
s->s3->tmp.cert_req = 2;
if (s->s3->handshake_buffer && !ssl3_digest_cached_records(s)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
s->state = SSL_ST_ERR;
return 0;
}
}
}
/* Ok, we have a cert */
s->state = SSL3_ST_CW_CERT_C;
}
if (s->state == SSL3_ST_CW_CERT_C) {
s->state = SSL3_ST_CW_CERT_D;
if (!ssl3_output_cert_chain(s,
(s->s3->tmp.cert_req ==
2) ? NULL : s->cert->key)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE, ERR_R_INTERNAL_ERROR);
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
s->state = SSL_ST_ERR;
return 0;
}
}
/* SSL3_ST_CW_CERT_D */
return ssl_do_write(s);
} | int ssl3_send_client_certificate(SSL *s)
{
X509 *x509 = NULL;
EVP_PKEY *pkey = NULL;
int i;
if (s->state == SSL3_ST_CW_CERT_A) {
if (s->cert->cert_cb) {
i = s->cert->cert_cb(s, s->cert->cert_cb_arg);
if (i < 0) {
s->rwstate = SSL_X509_LOOKUP;
return -1;
}
if (i == 0) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
s->state = SSL_ST_ERR;
return 0;
}
s->rwstate = SSL_NOTHING;
}
if (ssl3_check_client_certificate(s))
s->state = SSL3_ST_CW_CERT_C;
else
s->state = SSL3_ST_CW_CERT_B;
}
if (s->state == SSL3_ST_CW_CERT_B) {
i = 0;
i = ssl_do_client_cert_cb(s, &x509, &pkey);
if (i < 0) {
s->rwstate = SSL_X509_LOOKUP;
return (-1);
}
s->rwstate = SSL_NOTHING;
if ((i == 1) && (pkey != NULL) && (x509 != NULL)) {
s->state = SSL3_ST_CW_CERT_B;
if (!SSL_use_certificate(s, x509) || !SSL_use_PrivateKey(s, pkey))
i = 0;
} else if (i == 1) {
i = 0;
SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,
SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
}
X509_free(x509);
EVP_PKEY_free(pkey);
if (i && !ssl3_check_client_certificate(s))
i = 0;
if (i == 0) {
if (s->version == SSL3_VERSION) {
s->s3->tmp.cert_req = 0;
ssl3_send_alert(s, SSL3_AL_WARNING, SSL_AD_NO_CERTIFICATE);
return (1);
} else {
s->s3->tmp.cert_req = 2;
if (s->s3->handshake_buffer && !ssl3_digest_cached_records(s)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
s->state = SSL_ST_ERR;
return 0;
}
}
}
s->state = SSL3_ST_CW_CERT_C;
}
if (s->state == SSL3_ST_CW_CERT_C) {
s->state = SSL3_ST_CW_CERT_D;
if (!ssl3_output_cert_chain(s,
(s->s3->tmp.cert_req ==
2) ? NULL : s->cert->key)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE, ERR_R_INTERNAL_ERROR);
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
s->state = SSL_ST_ERR;
return 0;
}
}
return ssl_do_write(s);
} | 367,597 |
0 | int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk,
unsigned char *p,
int (*put_cb) (const SSL_CIPHER *,
unsigned char *))
{
int i, j = 0;
SSL_CIPHER *c;
unsigned char *q;
int empty_reneg_info_scsv = !s->renegotiate;
/* Set disabled masks for this session */
ssl_set_client_disabled(s);
if (sk == NULL)
return (0);
q = p;
if (put_cb == NULL)
put_cb = s->method->put_cipher_by_char;
for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
c = sk_SSL_CIPHER_value(sk, i);
/* Skip disabled ciphers */
if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED))
continue;
#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
if (c->id == SSL3_CK_SCSV) {
if (!empty_reneg_info_scsv)
continue;
else
empty_reneg_info_scsv = 0;
}
#endif
j = put_cb(c, p);
p += j;
}
/*
* If p == q, no ciphers; caller indicates an error. Otherwise, add
* applicable SCSVs.
*/
if (p != q) {
if (empty_reneg_info_scsv) {
static SSL_CIPHER scsv = {
0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
j = put_cb(&scsv, p);
p += j;
#ifdef OPENSSL_RI_DEBUG
fprintf(stderr,
"TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
#endif
}
if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV) {
static SSL_CIPHER scsv = {
0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
j = put_cb(&scsv, p);
p += j;
}
}
return (p - q);
} | int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk,
unsigned char *p,
int (*put_cb) (const SSL_CIPHER *,
unsigned char *))
{
int i, j = 0;
SSL_CIPHER *c;
unsigned char *q;
int empty_reneg_info_scsv = !s->renegotiate;
ssl_set_client_disabled(s);
if (sk == NULL)
return (0);
q = p;
if (put_cb == NULL)
put_cb = s->method->put_cipher_by_char;
for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
c = sk_SSL_CIPHER_value(sk, i);
if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED))
continue;
#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
if (c->id == SSL3_CK_SCSV) {
if (!empty_reneg_info_scsv)
continue;
else
empty_reneg_info_scsv = 0;
}
#endif
j = put_cb(c, p);
p += j;
}
if (p != q) {
if (empty_reneg_info_scsv) {
static SSL_CIPHER scsv = {
0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
j = put_cb(&scsv, p);
p += j;
#ifdef OPENSSL_RI_DEBUG
fprintf(stderr,
"TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
#endif
}
if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV) {
static SSL_CIPHER scsv = {
0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
j = put_cb(&scsv, p);
p += j;
}
}
return (p - q);
} | 367,598 |
0 | int ssl3_connect(SSL *s)
{
BUF_MEM *buf = NULL;
unsigned long Time = (unsigned long)time(NULL);
void (*cb) (const SSL *ssl, int type, int val) = NULL;
int ret = -1;
int new_state, state, skip = 0;
RAND_add(&Time, sizeof(Time), 0);
ERR_clear_error();
clear_sys_error();
if (s->info_callback != NULL)
cb = s->info_callback;
else if (s->ctx->info_callback != NULL)
cb = s->ctx->info_callback;
s->in_handshake++;
if (!SSL_in_init(s) || SSL_in_before(s)) {
if (!SSL_clear(s))
return -1;
}
#ifndef OPENSSL_NO_HEARTBEATS
/*
* If we're awaiting a HeartbeatResponse, pretend we already got and
* don't await it anymore, because Heartbeats don't make sense during
* handshakes anyway.
*/
if (s->tlsext_hb_pending) {
s->tlsext_hb_pending = 0;
s->tlsext_hb_seq++;
}
#endif
for (;;) {
state = s->state;
switch (s->state) {
case SSL_ST_RENEGOTIATE:
s->renegotiate = 1;
s->state = SSL_ST_CONNECT;
s->ctx->stats.sess_connect_renegotiate++;
/* break */
case SSL_ST_BEFORE:
case SSL_ST_CONNECT:
case SSL_ST_BEFORE | SSL_ST_CONNECT:
case SSL_ST_OK | SSL_ST_CONNECT:
s->server = 0;
if (cb != NULL)
cb(s, SSL_CB_HANDSHAKE_START, 1);
if ((s->version >> 8) != SSL3_VERSION_MAJOR
&& s->version != TLS_ANY_VERSION) {
SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
s->state = SSL_ST_ERR;
ret = -1;
goto end;
}
if (s->version != TLS_ANY_VERSION &&
!ssl_security(s, SSL_SECOP_VERSION, 0, s->version, NULL)) {
SSLerr(SSL_F_SSL3_CONNECT, SSL_R_VERSION_TOO_LOW);
return -1;
}
/* s->version=SSL3_VERSION; */
s->type = SSL_ST_CONNECT;
if (s->init_buf == NULL) {
if ((buf = BUF_MEM_new()) == NULL) {
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
if (!BUF_MEM_grow(buf, SSL3_RT_MAX_PLAIN_LENGTH)) {
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
s->init_buf = buf;
buf = NULL;
}
if (!ssl3_setup_buffers(s)) {
ret = -1;
goto end;
}
/* setup buffing BIO */
if (!ssl_init_wbio_buffer(s, 0)) {
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
/* don't push the buffering BIO quite yet */
ssl3_init_finished_mac(s);
s->state = SSL3_ST_CW_CLNT_HELLO_A;
s->ctx->stats.sess_connect++;
s->init_num = 0;
s->s3->flags &= ~SSL3_FLAGS_CCS_OK;
/*
* Should have been reset by ssl3_get_finished, too.
*/
s->s3->change_cipher_spec = 0;
break;
case SSL3_ST_CW_CLNT_HELLO_A:
case SSL3_ST_CW_CLNT_HELLO_B:
s->shutdown = 0;
ret = ssl3_client_hello(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CR_SRVR_HELLO_A;
s->init_num = 0;
/* turn on buffering for the next lot of output */
if (s->bbio != s->wbio)
s->wbio = BIO_push(s->bbio, s->wbio);
break;
case SSL3_ST_CR_SRVR_HELLO_A:
case SSL3_ST_CR_SRVR_HELLO_B:
ret = ssl3_get_server_hello(s);
if (ret <= 0)
goto end;
if (s->hit) {
s->state = SSL3_ST_CR_FINISHED_A;
if (s->tlsext_ticket_expected) {
/* receive renewed session ticket */
s->state = SSL3_ST_CR_SESSION_TICKET_A;
}
} else {
s->state = SSL3_ST_CR_CERT_A;
}
s->init_num = 0;
break;
case SSL3_ST_CR_CERT_A:
case SSL3_ST_CR_CERT_B:
/* Noop (ret = 0) for everything but EAP-FAST. */
ret = ssl3_check_finished(s);
if (ret < 0)
goto end;
if (ret == 1) {
s->hit = 1;
s->state = SSL3_ST_CR_FINISHED_A;
s->init_num = 0;
break;
}
/* Check if it is anon DH/ECDH, SRP auth */
/* or PSK */
if (!
(s->s3->tmp.
new_cipher->algorithm_auth & (SSL_aNULL | SSL_aSRP))
&& !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) {
ret = ssl3_get_server_certificate(s);
if (ret <= 0)
goto end;
if (s->tlsext_status_expected)
s->state = SSL3_ST_CR_CERT_STATUS_A;
else
s->state = SSL3_ST_CR_KEY_EXCH_A;
} else {
skip = 1;
s->state = SSL3_ST_CR_KEY_EXCH_A;
}
s->init_num = 0;
break;
case SSL3_ST_CR_KEY_EXCH_A:
case SSL3_ST_CR_KEY_EXCH_B:
ret = ssl3_get_key_exchange(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CR_CERT_REQ_A;
s->init_num = 0;
/*
* at this point we check that we have the required stuff from
* the server
*/
if (!ssl3_check_cert_and_algorithm(s)) {
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
break;
case SSL3_ST_CR_CERT_REQ_A:
case SSL3_ST_CR_CERT_REQ_B:
ret = ssl3_get_certificate_request(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CR_SRVR_DONE_A;
s->init_num = 0;
break;
case SSL3_ST_CR_SRVR_DONE_A:
case SSL3_ST_CR_SRVR_DONE_B:
ret = ssl3_get_server_done(s);
if (ret <= 0)
goto end;
#ifndef OPENSSL_NO_SRP
if (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kSRP) {
if ((ret = SRP_Calc_A_param(s)) <= 0) {
SSLerr(SSL_F_SSL3_CONNECT, SSL_R_SRP_A_CALC);
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
s->state = SSL_ST_ERR;
goto end;
}
}
#endif
if (s->s3->tmp.cert_req)
s->state = SSL3_ST_CW_CERT_A;
else
s->state = SSL3_ST_CW_KEY_EXCH_A;
s->init_num = 0;
break;
case SSL3_ST_CW_CERT_A:
case SSL3_ST_CW_CERT_B:
case SSL3_ST_CW_CERT_C:
case SSL3_ST_CW_CERT_D:
ret = ssl3_send_client_certificate(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CW_KEY_EXCH_A;
s->init_num = 0;
break;
case SSL3_ST_CW_KEY_EXCH_A:
case SSL3_ST_CW_KEY_EXCH_B:
ret = ssl3_send_client_key_exchange(s);
if (ret <= 0)
goto end;
/*
* EAY EAY EAY need to check for DH fix cert sent back
*/
/*
* For TLS, cert_req is set to 2, so a cert chain of nothing is
* sent, but no verify packet is sent
*/
/*
* XXX: For now, we do not support client authentication in ECDH
* cipher suites with ECDH (rather than ECDSA) certificates. We
* need to skip the certificate verify message when client's
* ECDH public key is sent inside the client certificate.
*/
if (s->s3->tmp.cert_req == 1) {
s->state = SSL3_ST_CW_CERT_VRFY_A;
} else {
s->state = SSL3_ST_CW_CHANGE_A;
}
if (s->s3->flags & TLS1_FLAGS_SKIP_CERT_VERIFY) {
s->state = SSL3_ST_CW_CHANGE_A;
}
s->init_num = 0;
break;
case SSL3_ST_CW_CERT_VRFY_A:
case SSL3_ST_CW_CERT_VRFY_B:
ret = ssl3_send_client_verify(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CW_CHANGE_A;
s->init_num = 0;
break;
case SSL3_ST_CW_CHANGE_A:
case SSL3_ST_CW_CHANGE_B:
ret = ssl3_send_change_cipher_spec(s,
SSL3_ST_CW_CHANGE_A,
SSL3_ST_CW_CHANGE_B);
if (ret <= 0)
goto end;
#if defined(OPENSSL_NO_NEXTPROTONEG)
s->state = SSL3_ST_CW_FINISHED_A;
#else
if (s->s3->next_proto_neg_seen)
s->state = SSL3_ST_CW_NEXT_PROTO_A;
else
s->state = SSL3_ST_CW_FINISHED_A;
#endif
s->init_num = 0;
s->session->cipher = s->s3->tmp.new_cipher;
#ifdef OPENSSL_NO_COMP
s->session->compress_meth = 0;
#else
if (s->s3->tmp.new_compression == NULL)
s->session->compress_meth = 0;
else
s->session->compress_meth = s->s3->tmp.new_compression->id;
#endif
if (!s->method->ssl3_enc->setup_key_block(s)) {
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
if (!s->method->ssl3_enc->change_cipher_state(s,
SSL3_CHANGE_CIPHER_CLIENT_WRITE))
{
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
break;
#if !defined(OPENSSL_NO_NEXTPROTONEG)
case SSL3_ST_CW_NEXT_PROTO_A:
case SSL3_ST_CW_NEXT_PROTO_B:
ret = ssl3_send_next_proto(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CW_FINISHED_A;
break;
#endif
case SSL3_ST_CW_FINISHED_A:
case SSL3_ST_CW_FINISHED_B:
ret = ssl3_send_finished(s,
SSL3_ST_CW_FINISHED_A,
SSL3_ST_CW_FINISHED_B,
s->method->
ssl3_enc->client_finished_label,
s->method->
ssl3_enc->client_finished_label_len);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CW_FLUSH;
/* clear flags */
s->s3->flags &= ~SSL3_FLAGS_POP_BUFFER;
if (s->hit) {
s->s3->tmp.next_state = SSL_ST_OK;
if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED) {
s->state = SSL_ST_OK;
s->s3->flags |= SSL3_FLAGS_POP_BUFFER;
s->s3->delay_buf_pop_ret = 0;
}
} else {
/*
* Allow NewSessionTicket if ticket expected
*/
if (s->tlsext_ticket_expected)
s->s3->tmp.next_state = SSL3_ST_CR_SESSION_TICKET_A;
else
s->s3->tmp.next_state = SSL3_ST_CR_FINISHED_A;
}
s->init_num = 0;
break;
case SSL3_ST_CR_SESSION_TICKET_A:
case SSL3_ST_CR_SESSION_TICKET_B:
ret = ssl3_get_new_session_ticket(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CR_FINISHED_A;
s->init_num = 0;
break;
case SSL3_ST_CR_CERT_STATUS_A:
case SSL3_ST_CR_CERT_STATUS_B:
ret = ssl3_get_cert_status(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CR_KEY_EXCH_A;
s->init_num = 0;
break;
case SSL3_ST_CR_FINISHED_A:
case SSL3_ST_CR_FINISHED_B:
if (!s->s3->change_cipher_spec)
s->s3->flags |= SSL3_FLAGS_CCS_OK;
ret = ssl3_get_finished(s, SSL3_ST_CR_FINISHED_A,
SSL3_ST_CR_FINISHED_B);
if (ret <= 0)
goto end;
if (s->hit)
s->state = SSL3_ST_CW_CHANGE_A;
else
s->state = SSL_ST_OK;
s->init_num = 0;
break;
case SSL3_ST_CW_FLUSH:
s->rwstate = SSL_WRITING;
if (BIO_flush(s->wbio) <= 0) {
ret = -1;
goto end;
}
s->rwstate = SSL_NOTHING;
s->state = s->s3->tmp.next_state;
break;
case SSL_ST_OK:
/* clean a few things up */
ssl3_cleanup_key_block(s);
BUF_MEM_free(s->init_buf);
s->init_buf = NULL;
/*
* If we are not 'joining' the last two packets, remove the
* buffering now
*/
if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
ssl_free_wbio_buffer(s);
/* else do it later in ssl3_write */
s->init_num = 0;
s->renegotiate = 0;
s->new_session = 0;
ssl_update_cache(s, SSL_SESS_CACHE_CLIENT);
if (s->hit)
s->ctx->stats.sess_hit++;
ret = 1;
/* s->server=0; */
s->handshake_func = ssl3_connect;
s->ctx->stats.sess_connect_good++;
if (cb != NULL)
cb(s, SSL_CB_HANDSHAKE_DONE, 1);
goto end;
/* break; */
case SSL_ST_ERR:
default:
SSLerr(SSL_F_SSL3_CONNECT, SSL_R_UNKNOWN_STATE);
ret = -1;
goto end;
/* break; */
}
/* did we do anything */
if (!s->s3->tmp.reuse_message && !skip) {
if (s->debug) {
if ((ret = BIO_flush(s->wbio)) <= 0)
goto end;
}
if ((cb != NULL) && (s->state != state)) {
new_state = s->state;
s->state = state;
cb(s, SSL_CB_CONNECT_LOOP, 1);
s->state = new_state;
}
}
skip = 0;
}
end:
s->in_handshake--;
BUF_MEM_free(buf);
if (cb != NULL)
cb(s, SSL_CB_CONNECT_EXIT, ret);
return (ret);
} | int ssl3_connect(SSL *s)
{
BUF_MEM *buf = NULL;
unsigned long Time = (unsigned long)time(NULL);
void (*cb) (const SSL *ssl, int type, int val) = NULL;
int ret = -1;
int new_state, state, skip = 0;
RAND_add(&Time, sizeof(Time), 0);
ERR_clear_error();
clear_sys_error();
if (s->info_callback != NULL)
cb = s->info_callback;
else if (s->ctx->info_callback != NULL)
cb = s->ctx->info_callback;
s->in_handshake++;
if (!SSL_in_init(s) || SSL_in_before(s)) {
if (!SSL_clear(s))
return -1;
}
#ifndef OPENSSL_NO_HEARTBEATS
if (s->tlsext_hb_pending) {
s->tlsext_hb_pending = 0;
s->tlsext_hb_seq++;
}
#endif
for (;;) {
state = s->state;
switch (s->state) {
case SSL_ST_RENEGOTIATE:
s->renegotiate = 1;
s->state = SSL_ST_CONNECT;
s->ctx->stats.sess_connect_renegotiate++;
case SSL_ST_BEFORE:
case SSL_ST_CONNECT:
case SSL_ST_BEFORE | SSL_ST_CONNECT:
case SSL_ST_OK | SSL_ST_CONNECT:
s->server = 0;
if (cb != NULL)
cb(s, SSL_CB_HANDSHAKE_START, 1);
if ((s->version >> 8) != SSL3_VERSION_MAJOR
&& s->version != TLS_ANY_VERSION) {
SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
s->state = SSL_ST_ERR;
ret = -1;
goto end;
}
if (s->version != TLS_ANY_VERSION &&
!ssl_security(s, SSL_SECOP_VERSION, 0, s->version, NULL)) {
SSLerr(SSL_F_SSL3_CONNECT, SSL_R_VERSION_TOO_LOW);
return -1;
}
s->type = SSL_ST_CONNECT;
if (s->init_buf == NULL) {
if ((buf = BUF_MEM_new()) == NULL) {
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
if (!BUF_MEM_grow(buf, SSL3_RT_MAX_PLAIN_LENGTH)) {
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
s->init_buf = buf;
buf = NULL;
}
if (!ssl3_setup_buffers(s)) {
ret = -1;
goto end;
}
if (!ssl_init_wbio_buffer(s, 0)) {
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
ssl3_init_finished_mac(s);
s->state = SSL3_ST_CW_CLNT_HELLO_A;
s->ctx->stats.sess_connect++;
s->init_num = 0;
s->s3->flags &= ~SSL3_FLAGS_CCS_OK;
s->s3->change_cipher_spec = 0;
break;
case SSL3_ST_CW_CLNT_HELLO_A:
case SSL3_ST_CW_CLNT_HELLO_B:
s->shutdown = 0;
ret = ssl3_client_hello(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CR_SRVR_HELLO_A;
s->init_num = 0;
if (s->bbio != s->wbio)
s->wbio = BIO_push(s->bbio, s->wbio);
break;
case SSL3_ST_CR_SRVR_HELLO_A:
case SSL3_ST_CR_SRVR_HELLO_B:
ret = ssl3_get_server_hello(s);
if (ret <= 0)
goto end;
if (s->hit) {
s->state = SSL3_ST_CR_FINISHED_A;
if (s->tlsext_ticket_expected) {
s->state = SSL3_ST_CR_SESSION_TICKET_A;
}
} else {
s->state = SSL3_ST_CR_CERT_A;
}
s->init_num = 0;
break;
case SSL3_ST_CR_CERT_A:
case SSL3_ST_CR_CERT_B:
ret = ssl3_check_finished(s);
if (ret < 0)
goto end;
if (ret == 1) {
s->hit = 1;
s->state = SSL3_ST_CR_FINISHED_A;
s->init_num = 0;
break;
}
if (!
(s->s3->tmp.
new_cipher->algorithm_auth & (SSL_aNULL | SSL_aSRP))
&& !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) {
ret = ssl3_get_server_certificate(s);
if (ret <= 0)
goto end;
if (s->tlsext_status_expected)
s->state = SSL3_ST_CR_CERT_STATUS_A;
else
s->state = SSL3_ST_CR_KEY_EXCH_A;
} else {
skip = 1;
s->state = SSL3_ST_CR_KEY_EXCH_A;
}
s->init_num = 0;
break;
case SSL3_ST_CR_KEY_EXCH_A:
case SSL3_ST_CR_KEY_EXCH_B:
ret = ssl3_get_key_exchange(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CR_CERT_REQ_A;
s->init_num = 0;
if (!ssl3_check_cert_and_algorithm(s)) {
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
break;
case SSL3_ST_CR_CERT_REQ_A:
case SSL3_ST_CR_CERT_REQ_B:
ret = ssl3_get_certificate_request(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CR_SRVR_DONE_A;
s->init_num = 0;
break;
case SSL3_ST_CR_SRVR_DONE_A:
case SSL3_ST_CR_SRVR_DONE_B:
ret = ssl3_get_server_done(s);
if (ret <= 0)
goto end;
#ifndef OPENSSL_NO_SRP
if (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kSRP) {
if ((ret = SRP_Calc_A_param(s)) <= 0) {
SSLerr(SSL_F_SSL3_CONNECT, SSL_R_SRP_A_CALC);
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
s->state = SSL_ST_ERR;
goto end;
}
}
#endif
if (s->s3->tmp.cert_req)
s->state = SSL3_ST_CW_CERT_A;
else
s->state = SSL3_ST_CW_KEY_EXCH_A;
s->init_num = 0;
break;
case SSL3_ST_CW_CERT_A:
case SSL3_ST_CW_CERT_B:
case SSL3_ST_CW_CERT_C:
case SSL3_ST_CW_CERT_D:
ret = ssl3_send_client_certificate(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CW_KEY_EXCH_A;
s->init_num = 0;
break;
case SSL3_ST_CW_KEY_EXCH_A:
case SSL3_ST_CW_KEY_EXCH_B:
ret = ssl3_send_client_key_exchange(s);
if (ret <= 0)
goto end;
if (s->s3->tmp.cert_req == 1) {
s->state = SSL3_ST_CW_CERT_VRFY_A;
} else {
s->state = SSL3_ST_CW_CHANGE_A;
}
if (s->s3->flags & TLS1_FLAGS_SKIP_CERT_VERIFY) {
s->state = SSL3_ST_CW_CHANGE_A;
}
s->init_num = 0;
break;
case SSL3_ST_CW_CERT_VRFY_A:
case SSL3_ST_CW_CERT_VRFY_B:
ret = ssl3_send_client_verify(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CW_CHANGE_A;
s->init_num = 0;
break;
case SSL3_ST_CW_CHANGE_A:
case SSL3_ST_CW_CHANGE_B:
ret = ssl3_send_change_cipher_spec(s,
SSL3_ST_CW_CHANGE_A,
SSL3_ST_CW_CHANGE_B);
if (ret <= 0)
goto end;
#if defined(OPENSSL_NO_NEXTPROTONEG)
s->state = SSL3_ST_CW_FINISHED_A;
#else
if (s->s3->next_proto_neg_seen)
s->state = SSL3_ST_CW_NEXT_PROTO_A;
else
s->state = SSL3_ST_CW_FINISHED_A;
#endif
s->init_num = 0;
s->session->cipher = s->s3->tmp.new_cipher;
#ifdef OPENSSL_NO_COMP
s->session->compress_meth = 0;
#else
if (s->s3->tmp.new_compression == NULL)
s->session->compress_meth = 0;
else
s->session->compress_meth = s->s3->tmp.new_compression->id;
#endif
if (!s->method->ssl3_enc->setup_key_block(s)) {
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
if (!s->method->ssl3_enc->change_cipher_state(s,
SSL3_CHANGE_CIPHER_CLIENT_WRITE))
{
ret = -1;
s->state = SSL_ST_ERR;
goto end;
}
break;
#if !defined(OPENSSL_NO_NEXTPROTONEG)
case SSL3_ST_CW_NEXT_PROTO_A:
case SSL3_ST_CW_NEXT_PROTO_B:
ret = ssl3_send_next_proto(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CW_FINISHED_A;
break;
#endif
case SSL3_ST_CW_FINISHED_A:
case SSL3_ST_CW_FINISHED_B:
ret = ssl3_send_finished(s,
SSL3_ST_CW_FINISHED_A,
SSL3_ST_CW_FINISHED_B,
s->method->
ssl3_enc->client_finished_label,
s->method->
ssl3_enc->client_finished_label_len);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CW_FLUSH;
s->s3->flags &= ~SSL3_FLAGS_POP_BUFFER;
if (s->hit) {
s->s3->tmp.next_state = SSL_ST_OK;
if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED) {
s->state = SSL_ST_OK;
s->s3->flags |= SSL3_FLAGS_POP_BUFFER;
s->s3->delay_buf_pop_ret = 0;
}
} else {
if (s->tlsext_ticket_expected)
s->s3->tmp.next_state = SSL3_ST_CR_SESSION_TICKET_A;
else
s->s3->tmp.next_state = SSL3_ST_CR_FINISHED_A;
}
s->init_num = 0;
break;
case SSL3_ST_CR_SESSION_TICKET_A:
case SSL3_ST_CR_SESSION_TICKET_B:
ret = ssl3_get_new_session_ticket(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CR_FINISHED_A;
s->init_num = 0;
break;
case SSL3_ST_CR_CERT_STATUS_A:
case SSL3_ST_CR_CERT_STATUS_B:
ret = ssl3_get_cert_status(s);
if (ret <= 0)
goto end;
s->state = SSL3_ST_CR_KEY_EXCH_A;
s->init_num = 0;
break;
case SSL3_ST_CR_FINISHED_A:
case SSL3_ST_CR_FINISHED_B:
if (!s->s3->change_cipher_spec)
s->s3->flags |= SSL3_FLAGS_CCS_OK;
ret = ssl3_get_finished(s, SSL3_ST_CR_FINISHED_A,
SSL3_ST_CR_FINISHED_B);
if (ret <= 0)
goto end;
if (s->hit)
s->state = SSL3_ST_CW_CHANGE_A;
else
s->state = SSL_ST_OK;
s->init_num = 0;
break;
case SSL3_ST_CW_FLUSH:
s->rwstate = SSL_WRITING;
if (BIO_flush(s->wbio) <= 0) {
ret = -1;
goto end;
}
s->rwstate = SSL_NOTHING;
s->state = s->s3->tmp.next_state;
break;
case SSL_ST_OK:
ssl3_cleanup_key_block(s);
BUF_MEM_free(s->init_buf);
s->init_buf = NULL;
if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))
ssl_free_wbio_buffer(s);
s->init_num = 0;
s->renegotiate = 0;
s->new_session = 0;
ssl_update_cache(s, SSL_SESS_CACHE_CLIENT);
if (s->hit)
s->ctx->stats.sess_hit++;
ret = 1;
s->handshake_func = ssl3_connect;
s->ctx->stats.sess_connect_good++;
if (cb != NULL)
cb(s, SSL_CB_HANDSHAKE_DONE, 1);
goto end;
case SSL_ST_ERR:
default:
SSLerr(SSL_F_SSL3_CONNECT, SSL_R_UNKNOWN_STATE);
ret = -1;
goto end;
}
if (!s->s3->tmp.reuse_message && !skip) {
if (s->debug) {
if ((ret = BIO_flush(s->wbio)) <= 0)
goto end;
}
if ((cb != NULL) && (s->state != state)) {
new_state = s->state;
s->state = state;
cb(s, SSL_CB_CONNECT_LOOP, 1);
s->state = new_state;
}
}
skip = 0;
}
end:
s->in_handshake--;
BUF_MEM_free(buf);
if (cb != NULL)
cb(s, SSL_CB_CONNECT_EXIT, ret);
return (ret);
} | 367,599 |
0 | int ssl3_get_new_session_ticket(SSL *s)
{
int ok, al, ret = 0, ticklen;
long n;
const unsigned char *p;
unsigned char *d;
n = s->method->ssl_get_message(s,
SSL3_ST_CR_SESSION_TICKET_A,
SSL3_ST_CR_SESSION_TICKET_B,
SSL3_MT_NEWSESSION_TICKET, 16384, &ok);
if (!ok)
return ((int)n);
if (n < 6) {
/* need at least ticket_lifetime_hint + ticket length */
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
p = d = (unsigned char *)s->init_msg;
if (s->session->session_id_length > 0) {
int i = s->session_ctx->session_cache_mode;
SSL_SESSION *new_sess;
/*
* We reused an existing session, so we need to replace it with a new
* one
*/
if (i & SSL_SESS_CACHE_CLIENT) {
/*
* Remove the old session from the cache
*/
if (i & SSL_SESS_CACHE_NO_INTERNAL_STORE) {
if (s->session_ctx->remove_session_cb != NULL)
s->session_ctx->remove_session_cb(s->session_ctx,
s->session);
} else {
/* We carry on if this fails */
SSL_CTX_remove_session(s->session_ctx, s->session);
}
}
if ((new_sess = ssl_session_dup(s->session, 0)) == 0) {
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET, ERR_R_MALLOC_FAILURE);
goto f_err;
}
SSL_SESSION_free(s->session);
s->session = new_sess;
}
n2l(p, s->session->tlsext_tick_lifetime_hint);
n2s(p, ticklen);
/* ticket_lifetime_hint + ticket_length + ticket */
if (ticklen + 6 != n) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
OPENSSL_free(s->session->tlsext_tick);
s->session->tlsext_ticklen = 0;
s->session->tlsext_tick = OPENSSL_malloc(ticklen);
if (!s->session->tlsext_tick) {
SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET, ERR_R_MALLOC_FAILURE);
goto err;
}
memcpy(s->session->tlsext_tick, p, ticklen);
s->session->tlsext_ticklen = ticklen;
/*
* There are two ways to detect a resumed ticket session. One is to set
* an appropriate session ID and then the server must return a match in
* ServerHello. This allows the normal client session ID matching to work
* and we know much earlier that the ticket has been accepted. The
* other way is to set zero length session ID when the ticket is
* presented and rely on the handshake to determine session resumption.
* We choose the former approach because this fits in with assumptions
* elsewhere in OpenSSL. The session ID is set to the SHA256 (or SHA1 is
* SHA256 is disabled) hash of the ticket.
*/
EVP_Digest(p, ticklen,
s->session->session_id, &s->session->session_id_length,
EVP_sha256(), NULL);
ret = 1;
return (ret);
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
s->state = SSL_ST_ERR;
return (-1);
} | int ssl3_get_new_session_ticket(SSL *s)
{
int ok, al, ret = 0, ticklen;
long n;
const unsigned char *p;
unsigned char *d;
n = s->method->ssl_get_message(s,
SSL3_ST_CR_SESSION_TICKET_A,
SSL3_ST_CR_SESSION_TICKET_B,
SSL3_MT_NEWSESSION_TICKET, 16384, &ok);
if (!ok)
return ((int)n);
if (n < 6) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
p = d = (unsigned char *)s->init_msg;
if (s->session->session_id_length > 0) {
int i = s->session_ctx->session_cache_mode;
SSL_SESSION *new_sess;
if (i & SSL_SESS_CACHE_CLIENT) {
if (i & SSL_SESS_CACHE_NO_INTERNAL_STORE) {
if (s->session_ctx->remove_session_cb != NULL)
s->session_ctx->remove_session_cb(s->session_ctx,
s->session);
} else {
SSL_CTX_remove_session(s->session_ctx, s->session);
}
}
if ((new_sess = ssl_session_dup(s->session, 0)) == 0) {
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET, ERR_R_MALLOC_FAILURE);
goto f_err;
}
SSL_SESSION_free(s->session);
s->session = new_sess;
}
n2l(p, s->session->tlsext_tick_lifetime_hint);
n2s(p, ticklen);
if (ticklen + 6 != n) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
OPENSSL_free(s->session->tlsext_tick);
s->session->tlsext_ticklen = 0;
s->session->tlsext_tick = OPENSSL_malloc(ticklen);
if (!s->session->tlsext_tick) {
SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET, ERR_R_MALLOC_FAILURE);
goto err;
}
memcpy(s->session->tlsext_tick, p, ticklen);
s->session->tlsext_ticklen = ticklen;
EVP_Digest(p, ticklen,
s->session->session_id, &s->session->session_id_length,
EVP_sha256(), NULL);
ret = 1;
return (ret);
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
s->state = SSL_ST_ERR;
return (-1);
} | 367,600 |
0 | int ssl3_check_cert_and_algorithm(SSL *s)
{
int i, idx;
long alg_k, alg_a;
EVP_PKEY *pkey = NULL;
int pkey_bits;
SESS_CERT *sc;
#ifndef OPENSSL_NO_RSA
RSA *rsa;
#endif
#ifndef OPENSSL_NO_DH
DH *dh;
#endif
alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
alg_a = s->s3->tmp.new_cipher->algorithm_auth;
/* we don't have a certificate */
if ((alg_a & SSL_aNULL) || (alg_k & SSL_kPSK))
return (1);
sc = s->session->sess_cert;
if (sc == NULL) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM, ERR_R_INTERNAL_ERROR);
goto err;
}
#ifndef OPENSSL_NO_RSA
rsa = s->session->sess_cert->peer_rsa_tmp;
#endif
#ifndef OPENSSL_NO_DH
dh = s->session->sess_cert->peer_dh_tmp;
#endif
/* This is the passed certificate */
idx = sc->peer_cert_type;
#ifndef OPENSSL_NO_EC
if (idx == SSL_PKEY_ECC) {
if (ssl_check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509, s) == 0) {
/* check failed */
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM, SSL_R_BAD_ECC_CERT);
goto f_err;
} else {
return 1;
}
} else if (alg_a & SSL_aECDSA) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_ECDSA_SIGNING_CERT);
goto f_err;
} else if (alg_k & (SSL_kECDHr | SSL_kECDHe)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM, SSL_R_MISSING_ECDH_CERT);
goto f_err;
}
#endif
pkey = X509_get_pubkey(sc->peer_pkeys[idx].x509);
pkey_bits = EVP_PKEY_bits(pkey);
i = X509_certificate_type(sc->peer_pkeys[idx].x509, pkey);
EVP_PKEY_free(pkey);
/* Check that we have a certificate if we require one */
if ((alg_a & SSL_aRSA) && !has_bits(i, EVP_PK_RSA | EVP_PKT_SIGN)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_RSA_SIGNING_CERT);
goto f_err;
}
#ifndef OPENSSL_NO_DSA
else if ((alg_a & SSL_aDSS) && !has_bits(i, EVP_PK_DSA | EVP_PKT_SIGN)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_DSA_SIGNING_CERT);
goto f_err;
}
#endif
#ifndef OPENSSL_NO_RSA
if ((alg_k & SSL_kRSA) &&
!(has_bits(i, EVP_PK_RSA | EVP_PKT_ENC) || (rsa != NULL))) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_RSA_ENCRYPTING_CERT);
goto f_err;
}
#endif
#ifndef OPENSSL_NO_DH
if ((alg_k & SSL_kDHE) &&
!(has_bits(i, EVP_PK_DH | EVP_PKT_EXCH) || (dh != NULL))) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM, SSL_R_MISSING_DH_KEY);
goto f_err;
} else if ((alg_k & SSL_kDHr) && !SSL_USE_SIGALGS(s) &&
!has_bits(i, EVP_PK_DH | EVP_PKS_RSA)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_DH_RSA_CERT);
goto f_err;
}
# ifndef OPENSSL_NO_DSA
else if ((alg_k & SSL_kDHd) && !SSL_USE_SIGALGS(s) &&
!has_bits(i, EVP_PK_DH | EVP_PKS_DSA)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_DH_DSA_CERT);
goto f_err;
}
# endif
#endif
if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
pkey_bits > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) {
#ifndef OPENSSL_NO_RSA
if (alg_k & SSL_kRSA) {
if (rsa == NULL
|| RSA_size(rsa) * 8 >
SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
goto f_err;
}
} else
#endif
#ifndef OPENSSL_NO_DH
if (alg_k & (SSL_kDHE | SSL_kDHr | SSL_kDHd)) {
if (dh == NULL
|| DH_size(dh) * 8 >
SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_EXPORT_TMP_DH_KEY);
goto f_err;
}
} else
#endif
{
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
goto f_err;
}
}
return (1);
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
err:
return (0);
} | int ssl3_check_cert_and_algorithm(SSL *s)
{
int i, idx;
long alg_k, alg_a;
EVP_PKEY *pkey = NULL;
int pkey_bits;
SESS_CERT *sc;
#ifndef OPENSSL_NO_RSA
RSA *rsa;
#endif
#ifndef OPENSSL_NO_DH
DH *dh;
#endif
alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
alg_a = s->s3->tmp.new_cipher->algorithm_auth;
if ((alg_a & SSL_aNULL) || (alg_k & SSL_kPSK))
return (1);
sc = s->session->sess_cert;
if (sc == NULL) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM, ERR_R_INTERNAL_ERROR);
goto err;
}
#ifndef OPENSSL_NO_RSA
rsa = s->session->sess_cert->peer_rsa_tmp;
#endif
#ifndef OPENSSL_NO_DH
dh = s->session->sess_cert->peer_dh_tmp;
#endif
idx = sc->peer_cert_type;
#ifndef OPENSSL_NO_EC
if (idx == SSL_PKEY_ECC) {
if (ssl_check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509, s) == 0) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM, SSL_R_BAD_ECC_CERT);
goto f_err;
} else {
return 1;
}
} else if (alg_a & SSL_aECDSA) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_ECDSA_SIGNING_CERT);
goto f_err;
} else if (alg_k & (SSL_kECDHr | SSL_kECDHe)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM, SSL_R_MISSING_ECDH_CERT);
goto f_err;
}
#endif
pkey = X509_get_pubkey(sc->peer_pkeys[idx].x509);
pkey_bits = EVP_PKEY_bits(pkey);
i = X509_certificate_type(sc->peer_pkeys[idx].x509, pkey);
EVP_PKEY_free(pkey);
if ((alg_a & SSL_aRSA) && !has_bits(i, EVP_PK_RSA | EVP_PKT_SIGN)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_RSA_SIGNING_CERT);
goto f_err;
}
#ifndef OPENSSL_NO_DSA
else if ((alg_a & SSL_aDSS) && !has_bits(i, EVP_PK_DSA | EVP_PKT_SIGN)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_DSA_SIGNING_CERT);
goto f_err;
}
#endif
#ifndef OPENSSL_NO_RSA
if ((alg_k & SSL_kRSA) &&
!(has_bits(i, EVP_PK_RSA | EVP_PKT_ENC) || (rsa != NULL))) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_RSA_ENCRYPTING_CERT);
goto f_err;
}
#endif
#ifndef OPENSSL_NO_DH
if ((alg_k & SSL_kDHE) &&
!(has_bits(i, EVP_PK_DH | EVP_PKT_EXCH) || (dh != NULL))) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM, SSL_R_MISSING_DH_KEY);
goto f_err;
} else if ((alg_k & SSL_kDHr) && !SSL_USE_SIGALGS(s) &&
!has_bits(i, EVP_PK_DH | EVP_PKS_RSA)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_DH_RSA_CERT);
goto f_err;
}
# ifndef OPENSSL_NO_DSA
else if ((alg_k & SSL_kDHd) && !SSL_USE_SIGALGS(s) &&
!has_bits(i, EVP_PK_DH | EVP_PKS_DSA)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_DH_DSA_CERT);
goto f_err;
}
# endif
#endif
if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
pkey_bits > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) {
#ifndef OPENSSL_NO_RSA
if (alg_k & SSL_kRSA) {
if (rsa == NULL
|| RSA_size(rsa) * 8 >
SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
goto f_err;
}
} else
#endif
#ifndef OPENSSL_NO_DH
if (alg_k & (SSL_kDHE | SSL_kDHr | SSL_kDHd)) {
if (dh == NULL
|| DH_size(dh) * 8 >
SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) {
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_MISSING_EXPORT_TMP_DH_KEY);
goto f_err;
}
} else
#endif
{
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
goto f_err;
}
}
return (1);
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
err:
return (0);
} | 367,601 |
0 | int ssl3_send_client_verify(SSL *s)
{
unsigned char *p;
unsigned char data[MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH];
EVP_PKEY *pkey;
EVP_PKEY_CTX *pctx = NULL;
EVP_MD_CTX mctx;
unsigned u = 0;
unsigned long n;
int j;
EVP_MD_CTX_init(&mctx);
if (s->state == SSL3_ST_CW_CERT_VRFY_A) {
p = ssl_handshake_start(s);
pkey = s->cert->key->privatekey;
/* Create context from key and test if sha1 is allowed as digest */
pctx = EVP_PKEY_CTX_new(pkey, NULL);
EVP_PKEY_sign_init(pctx);
if (EVP_PKEY_CTX_set_signature_md(pctx, EVP_sha1()) > 0) {
if (!SSL_USE_SIGALGS(s))
s->method->ssl3_enc->cert_verify_mac(s,
NID_sha1,
&(data
[MD5_DIGEST_LENGTH]));
} else {
ERR_clear_error();
}
/*
* For TLS v1.2 send signature algorithm and signature using agreed
* digest and cached handshake records.
*/
if (SSL_USE_SIGALGS(s)) {
long hdatalen = 0;
void *hdata;
const EVP_MD *md = s->s3->tmp.md[s->cert->key - s->cert->pkeys];
hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata);
if (hdatalen <= 0 || !tls12_get_sigandhash(p, pkey, md)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
p += 2;
#ifdef SSL_DEBUG
fprintf(stderr, "Using TLS 1.2 with client alg %s\n",
EVP_MD_name(md));
#endif
if (!EVP_SignInit_ex(&mctx, md, NULL)
|| !EVP_SignUpdate(&mctx, hdata, hdatalen)
|| !EVP_SignFinal(&mctx, p + 2, &u, pkey)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_EVP_LIB);
goto err;
}
s2n(u, p);
n = u + 4;
/*
* For extended master secret we've already digested cached
* records.
*/
if (s->session->flags & SSL_SESS_FLAG_EXTMS) {
BIO_free(s->s3->handshake_buffer);
s->s3->handshake_buffer = NULL;
s->s3->flags &= ~TLS1_FLAGS_KEEP_HANDSHAKE;
} else if (!ssl3_digest_cached_records(s))
goto err;
} else
#ifndef OPENSSL_NO_RSA
if (pkey->type == EVP_PKEY_RSA) {
s->method->ssl3_enc->cert_verify_mac(s, NID_md5, &(data[0]));
if (RSA_sign(NID_md5_sha1, data,
MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH,
&(p[2]), &u, pkey->pkey.rsa) <= 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_RSA_LIB);
goto err;
}
s2n(u, p);
n = u + 2;
} else
#endif
#ifndef OPENSSL_NO_DSA
if (pkey->type == EVP_PKEY_DSA) {
if (!DSA_sign(pkey->save_type,
&(data[MD5_DIGEST_LENGTH]),
SHA_DIGEST_LENGTH, &(p[2]),
(unsigned int *)&j, pkey->pkey.dsa)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_DSA_LIB);
goto err;
}
s2n(j, p);
n = j + 2;
} else
#endif
#ifndef OPENSSL_NO_EC
if (pkey->type == EVP_PKEY_EC) {
if (!ECDSA_sign(pkey->save_type,
&(data[MD5_DIGEST_LENGTH]),
SHA_DIGEST_LENGTH, &(p[2]),
(unsigned int *)&j, pkey->pkey.ec)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_ECDSA_LIB);
goto err;
}
s2n(j, p);
n = j + 2;
} else
#endif
if (pkey->type == NID_id_GostR3410_94
|| pkey->type == NID_id_GostR3410_2001) {
unsigned char signbuf[64];
int i;
size_t sigsize = 64;
s->method->ssl3_enc->cert_verify_mac(s,
NID_id_GostR3411_94, data);
if (EVP_PKEY_sign(pctx, signbuf, &sigsize, data, 32) <= 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
for (i = 63, j = 0; i >= 0; j++, i--) {
p[2 + j] = signbuf[i];
}
s2n(j, p);
n = j + 2;
} else {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
if (!ssl_set_handshake_header(s, SSL3_MT_CERTIFICATE_VERIFY, n)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
s->state = SSL3_ST_CW_CERT_VRFY_B;
}
EVP_MD_CTX_cleanup(&mctx);
EVP_PKEY_CTX_free(pctx);
return ssl_do_write(s);
err:
EVP_MD_CTX_cleanup(&mctx);
EVP_PKEY_CTX_free(pctx);
s->state = SSL_ST_ERR;
return (-1);
} | int ssl3_send_client_verify(SSL *s)
{
unsigned char *p;
unsigned char data[MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH];
EVP_PKEY *pkey;
EVP_PKEY_CTX *pctx = NULL;
EVP_MD_CTX mctx;
unsigned u = 0;
unsigned long n;
int j;
EVP_MD_CTX_init(&mctx);
if (s->state == SSL3_ST_CW_CERT_VRFY_A) {
p = ssl_handshake_start(s);
pkey = s->cert->key->privatekey;
pctx = EVP_PKEY_CTX_new(pkey, NULL);
EVP_PKEY_sign_init(pctx);
if (EVP_PKEY_CTX_set_signature_md(pctx, EVP_sha1()) > 0) {
if (!SSL_USE_SIGALGS(s))
s->method->ssl3_enc->cert_verify_mac(s,
NID_sha1,
&(data
[MD5_DIGEST_LENGTH]));
} else {
ERR_clear_error();
}
if (SSL_USE_SIGALGS(s)) {
long hdatalen = 0;
void *hdata;
const EVP_MD *md = s->s3->tmp.md[s->cert->key - s->cert->pkeys];
hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata);
if (hdatalen <= 0 || !tls12_get_sigandhash(p, pkey, md)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
p += 2;
#ifdef SSL_DEBUG
fprintf(stderr, "Using TLS 1.2 with client alg %s\n",
EVP_MD_name(md));
#endif
if (!EVP_SignInit_ex(&mctx, md, NULL)
|| !EVP_SignUpdate(&mctx, hdata, hdatalen)
|| !EVP_SignFinal(&mctx, p + 2, &u, pkey)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_EVP_LIB);
goto err;
}
s2n(u, p);
n = u + 4;
if (s->session->flags & SSL_SESS_FLAG_EXTMS) {
BIO_free(s->s3->handshake_buffer);
s->s3->handshake_buffer = NULL;
s->s3->flags &= ~TLS1_FLAGS_KEEP_HANDSHAKE;
} else if (!ssl3_digest_cached_records(s))
goto err;
} else
#ifndef OPENSSL_NO_RSA
if (pkey->type == EVP_PKEY_RSA) {
s->method->ssl3_enc->cert_verify_mac(s, NID_md5, &(data[0]));
if (RSA_sign(NID_md5_sha1, data,
MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH,
&(p[2]), &u, pkey->pkey.rsa) <= 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_RSA_LIB);
goto err;
}
s2n(u, p);
n = u + 2;
} else
#endif
#ifndef OPENSSL_NO_DSA
if (pkey->type == EVP_PKEY_DSA) {
if (!DSA_sign(pkey->save_type,
&(data[MD5_DIGEST_LENGTH]),
SHA_DIGEST_LENGTH, &(p[2]),
(unsigned int *)&j, pkey->pkey.dsa)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_DSA_LIB);
goto err;
}
s2n(j, p);
n = j + 2;
} else
#endif
#ifndef OPENSSL_NO_EC
if (pkey->type == EVP_PKEY_EC) {
if (!ECDSA_sign(pkey->save_type,
&(data[MD5_DIGEST_LENGTH]),
SHA_DIGEST_LENGTH, &(p[2]),
(unsigned int *)&j, pkey->pkey.ec)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_ECDSA_LIB);
goto err;
}
s2n(j, p);
n = j + 2;
} else
#endif
if (pkey->type == NID_id_GostR3410_94
|| pkey->type == NID_id_GostR3410_2001) {
unsigned char signbuf[64];
int i;
size_t sigsize = 64;
s->method->ssl3_enc->cert_verify_mac(s,
NID_id_GostR3411_94, data);
if (EVP_PKEY_sign(pctx, signbuf, &sigsize, data, 32) <= 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
for (i = 63, j = 0; i >= 0; j++, i--) {
p[2 + j] = signbuf[i];
}
s2n(j, p);
n = j + 2;
} else {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
if (!ssl_set_handshake_header(s, SSL3_MT_CERTIFICATE_VERIFY, n)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
s->state = SSL3_ST_CW_CERT_VRFY_B;
}
EVP_MD_CTX_cleanup(&mctx);
EVP_PKEY_CTX_free(pctx);
return ssl_do_write(s);
err:
EVP_MD_CTX_cleanup(&mctx);
EVP_PKEY_CTX_free(pctx);
s->state = SSL_ST_ERR;
return (-1);
} | 367,602 |
0 | static int ssl3_check_client_certificate(SSL *s)
{
unsigned long alg_k;
if (!s->cert || !s->cert->key->x509 || !s->cert->key->privatekey)
return 0;
/* If no suitable signature algorithm can't use certificate */
if (SSL_USE_SIGALGS(s) && !s->s3->tmp.md[s->cert->key - s->cert->pkeys])
return 0;
/*
* If strict mode check suitability of chain before using it. This also
* adjusts suite B digest if necessary.
*/
if (s->cert->cert_flags & SSL_CERT_FLAGS_CHECK_TLS_STRICT &&
!tls1_check_chain(s, NULL, NULL, NULL, -2))
return 0;
alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
/* See if we can use client certificate for fixed DH */
if (alg_k & (SSL_kDHr | SSL_kDHd)) {
SESS_CERT *scert = s->session->sess_cert;
int i = scert->peer_cert_type;
EVP_PKEY *clkey = NULL, *spkey = NULL;
clkey = s->cert->key->privatekey;
/* If client key not DH assume it can be used */
if (EVP_PKEY_id(clkey) != EVP_PKEY_DH)
return 1;
if (i >= 0)
spkey = X509_get_pubkey(scert->peer_pkeys[i].x509);
if (spkey) {
/* Compare server and client parameters */
i = EVP_PKEY_cmp_parameters(clkey, spkey);
EVP_PKEY_free(spkey);
if (i != 1)
return 0;
}
s->s3->flags |= TLS1_FLAGS_SKIP_CERT_VERIFY;
}
return 1;
} | static int ssl3_check_client_certificate(SSL *s)
{
unsigned long alg_k;
if (!s->cert || !s->cert->key->x509 || !s->cert->key->privatekey)
return 0;
if (SSL_USE_SIGALGS(s) && !s->s3->tmp.md[s->cert->key - s->cert->pkeys])
return 0;
if (s->cert->cert_flags & SSL_CERT_FLAGS_CHECK_TLS_STRICT &&
!tls1_check_chain(s, NULL, NULL, NULL, -2))
return 0;
alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
if (alg_k & (SSL_kDHr | SSL_kDHd)) {
SESS_CERT *scert = s->session->sess_cert;
int i = scert->peer_cert_type;
EVP_PKEY *clkey = NULL, *spkey = NULL;
clkey = s->cert->key->privatekey;
if (EVP_PKEY_id(clkey) != EVP_PKEY_DH)
return 1;
if (i >= 0)
spkey = X509_get_pubkey(scert->peer_pkeys[i].x509);
if (spkey) {
i = EVP_PKEY_cmp_parameters(clkey, spkey);
EVP_PKEY_free(spkey);
if (i != 1)
return 0;
}
s->s3->flags |= TLS1_FLAGS_SKIP_CERT_VERIFY;
}
return 1;
} | 367,603 |
0 | int ssl3_get_server_certificate(SSL *s)
{
int al, i, ok, ret = -1, exp_idx;
unsigned long n, nc, llen, l;
X509 *x = NULL;
const unsigned char *q, *p;
unsigned char *d;
STACK_OF(X509) *sk = NULL;
SESS_CERT *sc;
EVP_PKEY *pkey = NULL;
n = s->method->ssl_get_message(s,
SSL3_ST_CR_CERT_A,
SSL3_ST_CR_CERT_B,
-1, s->max_cert_list, &ok);
if (!ok)
return ((int)n);
if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE) {
s->s3->tmp.reuse_message = 1;
return (1);
}
if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, SSL_R_BAD_MESSAGE_TYPE);
goto f_err;
}
p = d = (unsigned char *)s->init_msg;
if ((sk = sk_X509_new_null()) == NULL) {
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, ERR_R_MALLOC_FAILURE);
goto err;
}
n2l3(p, llen);
if (llen + 3 != n) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
for (nc = 0; nc < llen;) {
n2l3(p, l);
if ((l + nc + 3) > llen) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_CERT_LENGTH_MISMATCH);
goto f_err;
}
q = p;
x = d2i_X509(NULL, &q, l);
if (x == NULL) {
al = SSL_AD_BAD_CERTIFICATE;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, ERR_R_ASN1_LIB);
goto f_err;
}
if (q != (p + l)) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_CERT_LENGTH_MISMATCH);
goto f_err;
}
if (!sk_X509_push(sk, x)) {
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, ERR_R_MALLOC_FAILURE);
goto err;
}
x = NULL;
nc += l + 3;
p = q;
}
i = ssl_verify_cert_chain(s, sk);
if (s->verify_mode != SSL_VERIFY_NONE && i <= 0) {
al = ssl_verify_alarm_type(s->verify_result);
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_CERTIFICATE_VERIFY_FAILED);
goto f_err;
}
ERR_clear_error(); /* but we keep s->verify_result */
if (i > 1) {
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, i);
al = SSL_AD_HANDSHAKE_FAILURE;
goto f_err;
}
sc = ssl_sess_cert_new();
if (sc == NULL)
goto err;
ssl_sess_cert_free(s->session->sess_cert);
s->session->sess_cert = sc;
sc->cert_chain = sk;
/*
* Inconsistency alert: cert_chain does include the peer's certificate,
* which we don't include in s3_srvr.c
*/
x = sk_X509_value(sk, 0);
sk = NULL;
/*
* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end
*/
pkey = X509_get_pubkey(x);
if (pkey == NULL || EVP_PKEY_missing_parameters(pkey)) {
x = NULL;
al = SSL3_AL_FATAL;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
goto f_err;
}
i = ssl_cert_type(x, pkey);
if (i < 0) {
x = NULL;
al = SSL3_AL_FATAL;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_UNKNOWN_CERTIFICATE_TYPE);
goto f_err;
}
exp_idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
if (exp_idx >= 0 && i != exp_idx) {
x = NULL;
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_WRONG_CERTIFICATE_TYPE);
goto f_err;
}
sc->peer_cert_type = i;
CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
/*
* Why would the following ever happen? We just created sc a couple
* of lines ago.
*/
X509_free(sc->peer_pkeys[i].x509);
sc->peer_pkeys[i].x509 = x;
sc->peer_key = &(sc->peer_pkeys[i]);
X509_free(s->session->peer);
CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
s->session->peer = x;
s->session->verify_result = s->verify_result;
x = NULL;
ret = 1;
goto done;
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
s->state = SSL_ST_ERR;
done:
EVP_PKEY_free(pkey);
X509_free(x);
sk_X509_pop_free(sk, X509_free);
return (ret);
} | int ssl3_get_server_certificate(SSL *s)
{
int al, i, ok, ret = -1, exp_idx;
unsigned long n, nc, llen, l;
X509 *x = NULL;
const unsigned char *q, *p;
unsigned char *d;
STACK_OF(X509) *sk = NULL;
SESS_CERT *sc;
EVP_PKEY *pkey = NULL;
n = s->method->ssl_get_message(s,
SSL3_ST_CR_CERT_A,
SSL3_ST_CR_CERT_B,
-1, s->max_cert_list, &ok);
if (!ok)
return ((int)n);
if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE) {
s->s3->tmp.reuse_message = 1;
return (1);
}
if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, SSL_R_BAD_MESSAGE_TYPE);
goto f_err;
}
p = d = (unsigned char *)s->init_msg;
if ((sk = sk_X509_new_null()) == NULL) {
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, ERR_R_MALLOC_FAILURE);
goto err;
}
n2l3(p, llen);
if (llen + 3 != n) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
for (nc = 0; nc < llen;) {
n2l3(p, l);
if ((l + nc + 3) > llen) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_CERT_LENGTH_MISMATCH);
goto f_err;
}
q = p;
x = d2i_X509(NULL, &q, l);
if (x == NULL) {
al = SSL_AD_BAD_CERTIFICATE;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, ERR_R_ASN1_LIB);
goto f_err;
}
if (q != (p + l)) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_CERT_LENGTH_MISMATCH);
goto f_err;
}
if (!sk_X509_push(sk, x)) {
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, ERR_R_MALLOC_FAILURE);
goto err;
}
x = NULL;
nc += l + 3;
p = q;
}
i = ssl_verify_cert_chain(s, sk);
if (s->verify_mode != SSL_VERIFY_NONE && i <= 0) {
al = ssl_verify_alarm_type(s->verify_result);
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_CERTIFICATE_VERIFY_FAILED);
goto f_err;
}
ERR_clear_error();
if (i > 1) {
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, i);
al = SSL_AD_HANDSHAKE_FAILURE;
goto f_err;
}
sc = ssl_sess_cert_new();
if (sc == NULL)
goto err;
ssl_sess_cert_free(s->session->sess_cert);
s->session->sess_cert = sc;
sc->cert_chain = sk;
x = sk_X509_value(sk, 0);
sk = NULL;
pkey = X509_get_pubkey(x);
if (pkey == NULL || EVP_PKEY_missing_parameters(pkey)) {
x = NULL;
al = SSL3_AL_FATAL;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
goto f_err;
}
i = ssl_cert_type(x, pkey);
if (i < 0) {
x = NULL;
al = SSL3_AL_FATAL;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_UNKNOWN_CERTIFICATE_TYPE);
goto f_err;
}
exp_idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
if (exp_idx >= 0 && i != exp_idx) {
x = NULL;
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_WRONG_CERTIFICATE_TYPE);
goto f_err;
}
sc->peer_cert_type = i;
CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
X509_free(sc->peer_pkeys[i].x509);
sc->peer_pkeys[i].x509 = x;
sc->peer_key = &(sc->peer_pkeys[i]);
X509_free(s->session->peer);
CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
s->session->peer = x;
s->session->verify_result = s->verify_result;
x = NULL;
ret = 1;
goto done;
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
s->state = SSL_ST_ERR;
done:
EVP_PKEY_free(pkey);
X509_free(x);
sk_X509_pop_free(sk, X509_free);
return (ret);
} | 367,604 |
0 | int ssl3_get_key_exchange(SSL *s)
{
#ifndef OPENSSL_NO_RSA
unsigned char *q, md_buf[EVP_MAX_MD_SIZE * 2];
#endif
EVP_MD_CTX md_ctx;
unsigned char *param, *p;
int al, j, ok;
long i, param_len, n, alg_k, alg_a;
EVP_PKEY *pkey = NULL;
const EVP_MD *md = NULL;
#ifndef OPENSSL_NO_RSA
RSA *rsa = NULL;
#endif
#ifndef OPENSSL_NO_DH
DH *dh = NULL;
#endif
#ifndef OPENSSL_NO_EC
EC_KEY *ecdh = NULL;
BN_CTX *bn_ctx = NULL;
EC_POINT *srvr_ecpoint = NULL;
int curve_nid = 0;
int encoded_pt_len = 0;
#endif
EVP_MD_CTX_init(&md_ctx);
/*
* use same message size as in ssl3_get_certificate_request() as
* ServerKeyExchange message may be skipped
*/
n = s->method->ssl_get_message(s,
SSL3_ST_CR_KEY_EXCH_A,
SSL3_ST_CR_KEY_EXCH_B,
-1, s->max_cert_list, &ok);
if (!ok)
return ((int)n);
alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE) {
/*
* Can't skip server key exchange if this is an ephemeral
* ciphersuite.
*/
if (alg_k & (SSL_kDHE | SSL_kECDHE)) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_UNEXPECTED_MESSAGE);
al = SSL_AD_UNEXPECTED_MESSAGE;
goto f_err;
}
#ifndef OPENSSL_NO_PSK
/*
* In plain PSK ciphersuite, ServerKeyExchange can be omitted if no
* identity hint is sent. Set session->sess_cert anyway to avoid
* problems later.
*/
if (alg_k & SSL_kPSK) {
s->session->sess_cert = ssl_sess_cert_new();
OPENSSL_free(s->ctx->psk_identity_hint);
s->ctx->psk_identity_hint = NULL;
}
#endif
s->s3->tmp.reuse_message = 1;
return (1);
}
param = p = (unsigned char *)s->init_msg;
if (s->session->sess_cert != NULL) {
#ifndef OPENSSL_NO_RSA
RSA_free(s->session->sess_cert->peer_rsa_tmp);
s->session->sess_cert->peer_rsa_tmp = NULL;
#endif
#ifndef OPENSSL_NO_DH
DH_free(s->session->sess_cert->peer_dh_tmp);
s->session->sess_cert->peer_dh_tmp = NULL;
#endif
#ifndef OPENSSL_NO_EC
EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
s->session->sess_cert->peer_ecdh_tmp = NULL;
#endif
} else {
s->session->sess_cert = ssl_sess_cert_new();
}
/* Total length of the parameters including the length prefix */
param_len = 0;
alg_a = s->s3->tmp.new_cipher->algorithm_auth;
al = SSL_AD_DECODE_ERROR;
#ifndef OPENSSL_NO_PSK
if (alg_k & SSL_kPSK) {
char tmp_id_hint[PSK_MAX_IDENTITY_LEN + 1];
param_len = 2;
if (param_len > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
n2s(p, i);
/*
* Store PSK identity hint for later use, hint is used in
* ssl3_send_client_key_exchange. Assume that the maximum length of
* a PSK identity hint can be as long as the maximum length of a PSK
* identity.
*/
if (i > PSK_MAX_IDENTITY_LEN) {
al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_DATA_LENGTH_TOO_LONG);
goto f_err;
}
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,
SSL_R_BAD_PSK_IDENTITY_HINT_LENGTH);
goto f_err;
}
param_len += i;
/*
* If received PSK identity hint contains NULL characters, the hint
* is truncated from the first NULL. p may not be ending with NULL,
* so create a NULL-terminated string.
*/
memcpy(tmp_id_hint, p, i);
memset(tmp_id_hint + i, 0, PSK_MAX_IDENTITY_LEN + 1 - i);
OPENSSL_free(s->ctx->psk_identity_hint);
s->ctx->psk_identity_hint = BUF_strdup(tmp_id_hint);
if (s->ctx->psk_identity_hint == NULL) {
al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
goto f_err;
}
p += i;
n -= param_len;
} else
#endif /* !OPENSSL_NO_PSK */
#ifndef OPENSSL_NO_SRP
if (alg_k & SSL_kSRP) {
param_len = 2;
if (param_len > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SRP_N_LENGTH);
goto f_err;
}
param_len += i;
if ((s->srp_ctx.N = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (2 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 2;
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SRP_G_LENGTH);
goto f_err;
}
param_len += i;
if ((s->srp_ctx.g = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (1 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 1;
i = (unsigned int)(p[0]);
p++;
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SRP_S_LENGTH);
goto f_err;
}
param_len += i;
if ((s->srp_ctx.s = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (2 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 2;
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SRP_B_LENGTH);
goto f_err;
}
param_len += i;
if ((s->srp_ctx.B = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
n -= param_len;
if (!srp_verify_server_param(s, &al)) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SRP_PARAMETERS);
goto f_err;
}
/* We must check if there is a certificate */
# ifndef OPENSSL_NO_RSA
if (alg_a & SSL_aRSA)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
# else
if (0) ;
# endif
# ifndef OPENSSL_NO_DSA
else if (alg_a & SSL_aDSS)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].
x509);
# endif
} else
#endif /* !OPENSSL_NO_SRP */
#ifndef OPENSSL_NO_RSA
if (alg_k & SSL_kRSA) {
/* Temporary RSA keys only allowed in export ciphersuites */
if (!SSL_C_IS_EXPORT(s->s3->tmp.new_cipher)) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_UNEXPECTED_MESSAGE);
goto f_err;
}
if ((rsa = RSA_new()) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
goto err;
}
param_len = 2;
if (param_len > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_RSA_MODULUS_LENGTH);
goto f_err;
}
param_len += i;
if ((rsa->n = BN_bin2bn(p, i, rsa->n)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (2 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 2;
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_RSA_E_LENGTH);
goto f_err;
}
param_len += i;
if ((rsa->e = BN_bin2bn(p, i, rsa->e)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
n -= param_len;
/* this should be because we are using an export cipher */
if (alg_a & SSL_aRSA)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
else {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
s->session->sess_cert->peer_rsa_tmp = rsa;
rsa = NULL;
}
#else /* OPENSSL_NO_RSA */
if (0) ;
#endif
#ifndef OPENSSL_NO_DH
else if (alg_k & SSL_kDHE) {
if ((dh = DH_new()) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_DH_LIB);
goto err;
}
param_len = 2;
if (param_len > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_DH_P_LENGTH);
goto f_err;
}
param_len += i;
if ((dh->p = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (2 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 2;
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_DH_G_LENGTH);
goto f_err;
}
param_len += i;
if ((dh->g = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (2 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 2;
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_DH_PUB_KEY_LENGTH);
goto f_err;
}
param_len += i;
if ((dh->pub_key = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
n -= param_len;
if (!ssl_security(s, SSL_SECOP_TMP_DH, DH_security_bits(dh), 0, dh)) {
al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_DH_KEY_TOO_SMALL);
goto f_err;
}
# ifndef OPENSSL_NO_RSA
if (alg_a & SSL_aRSA)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
# else
if (0) ;
# endif
# ifndef OPENSSL_NO_DSA
else if (alg_a & SSL_aDSS)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].
x509);
# endif
/* else anonymous DH, so no certificate or pkey. */
s->session->sess_cert->peer_dh_tmp = dh;
dh = NULL;
}
#endif /* !OPENSSL_NO_DH */
#ifndef OPENSSL_NO_EC
else if (alg_k & SSL_kECDHE) {
EC_GROUP *ngroup;
const EC_GROUP *group;
if ((ecdh = EC_KEY_new()) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
goto err;
}
/*
* Extract elliptic curve parameters and the server's ephemeral ECDH
* public key. Keep accumulating lengths of various components in
* param_len and make sure it never exceeds n.
*/
/*
* XXX: For now we only support named (not generic) curves and the
* ECParameters in this case is just three bytes. We also need one
* byte for the length of the encoded point
*/
param_len = 4;
if (param_len > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
/*
* Check curve is one of our preferences, if not server has sent an
* invalid curve. ECParameters is 3 bytes.
*/
if (!tls1_check_curve(s, p, 3)) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_WRONG_CURVE);
goto f_err;
}
if ((curve_nid = tls1_ec_curve_id2nid(*(p + 2))) == 0) {
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,
SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
goto f_err;
}
ngroup = EC_GROUP_new_by_curve_name(curve_nid);
if (ngroup == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_EC_LIB);
goto err;
}
if (EC_KEY_set_group(ecdh, ngroup) == 0) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_EC_LIB);
goto err;
}
EC_GROUP_free(ngroup);
group = EC_KEY_get0_group(ecdh);
if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
(EC_GROUP_get_degree(group) > 163)) {
al = SSL_AD_EXPORT_RESTRICTION;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,
SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
goto f_err;
}
p += 3;
/* Next, get the encoded ECPoint */
if (((srvr_ecpoint = EC_POINT_new(group)) == NULL) ||
((bn_ctx = BN_CTX_new()) == NULL)) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
goto err;
}
encoded_pt_len = *p; /* length of encoded point */
p += 1;
if ((encoded_pt_len > n - param_len) ||
(EC_POINT_oct2point(group, srvr_ecpoint,
p, encoded_pt_len, bn_ctx) == 0)) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_ECPOINT);
goto f_err;
}
param_len += encoded_pt_len;
n -= param_len;
p += encoded_pt_len;
/*
* The ECC/TLS specification does not mention the use of DSA to sign
* ECParameters in the server key exchange message. We do support RSA
* and ECDSA.
*/
if (0) ;
# ifndef OPENSSL_NO_RSA
else if (alg_a & SSL_aRSA)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
# endif
# ifndef OPENSSL_NO_EC
else if (alg_a & SSL_aECDSA)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
# endif
/* else anonymous ECDH, so no certificate or pkey. */
EC_KEY_set_public_key(ecdh, srvr_ecpoint);
s->session->sess_cert->peer_ecdh_tmp = ecdh;
ecdh = NULL;
BN_CTX_free(bn_ctx);
bn_ctx = NULL;
EC_POINT_free(srvr_ecpoint);
srvr_ecpoint = NULL;
} else if (alg_k) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_UNEXPECTED_MESSAGE);
goto f_err;
}
#endif /* !OPENSSL_NO_EC */
/* p points to the next byte, there are 'n' bytes left */
/* if it was signed, check the signature */
if (pkey != NULL) {
if (SSL_USE_SIGALGS(s)) {
int rv;
if (2 > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
rv = tls12_check_peer_sigalg(&md, s, p, pkey);
if (rv == -1)
goto err;
else if (rv == 0) {
goto f_err;
}
#ifdef SSL_DEBUG
fprintf(stderr, "USING TLSv1.2 HASH %s\n", EVP_MD_name(md));
#endif
p += 2;
n -= 2;
} else
md = EVP_sha1();
if (2 > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
n2s(p, i);
n -= 2;
j = EVP_PKEY_size(pkey);
/*
* Check signature length. If n is 0 then signature is empty
*/
if ((i != n) || (n > j) || (n <= 0)) {
/* wrong packet length */
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_WRONG_SIGNATURE_LENGTH);
goto f_err;
}
#ifndef OPENSSL_NO_RSA
if (pkey->type == EVP_PKEY_RSA && !SSL_USE_SIGALGS(s)) {
int num;
unsigned int size;
j = 0;
q = md_buf;
for (num = 2; num > 0; num--) {
EVP_MD_CTX_set_flags(&md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
EVP_DigestInit_ex(&md_ctx, (num == 2)
? s->ctx->md5 : s->ctx->sha1, NULL);
EVP_DigestUpdate(&md_ctx, &(s->s3->client_random[0]),
SSL3_RANDOM_SIZE);
EVP_DigestUpdate(&md_ctx, &(s->s3->server_random[0]),
SSL3_RANDOM_SIZE);
EVP_DigestUpdate(&md_ctx, param, param_len);
EVP_DigestFinal_ex(&md_ctx, q, &size);
q += size;
j += size;
}
i = RSA_verify(NID_md5_sha1, md_buf, j, p, n, pkey->pkey.rsa);
if (i < 0) {
al = SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_RSA_DECRYPT);
goto f_err;
}
if (i == 0) {
/* bad signature */
al = SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SIGNATURE);
goto f_err;
}
} else
#endif
{
EVP_VerifyInit_ex(&md_ctx, md, NULL);
EVP_VerifyUpdate(&md_ctx, &(s->s3->client_random[0]),
SSL3_RANDOM_SIZE);
EVP_VerifyUpdate(&md_ctx, &(s->s3->server_random[0]),
SSL3_RANDOM_SIZE);
EVP_VerifyUpdate(&md_ctx, param, param_len);
if (EVP_VerifyFinal(&md_ctx, p, (int)n, pkey) <= 0) {
/* bad signature */
al = SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SIGNATURE);
goto f_err;
}
}
} else {
/* aNULL, aSRP or kPSK do not need public keys */
if (!(alg_a & (SSL_aNULL | SSL_aSRP)) && !(alg_k & SSL_kPSK)) {
/* Might be wrong key type, check it */
if (ssl3_check_cert_and_algorithm(s))
/* Otherwise this shouldn't happen */
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
/* still data left over */
if (n != 0) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_EXTRA_DATA_IN_MESSAGE);
goto f_err;
}
}
EVP_PKEY_free(pkey);
EVP_MD_CTX_cleanup(&md_ctx);
return (1);
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
EVP_PKEY_free(pkey);
#ifndef OPENSSL_NO_RSA
RSA_free(rsa);
#endif
#ifndef OPENSSL_NO_DH
DH_free(dh);
#endif
#ifndef OPENSSL_NO_EC
BN_CTX_free(bn_ctx);
EC_POINT_free(srvr_ecpoint);
EC_KEY_free(ecdh);
#endif
EVP_MD_CTX_cleanup(&md_ctx);
s->state = SSL_ST_ERR;
return (-1);
} | int ssl3_get_key_exchange(SSL *s)
{
#ifndef OPENSSL_NO_RSA
unsigned char *q, md_buf[EVP_MAX_MD_SIZE * 2];
#endif
EVP_MD_CTX md_ctx;
unsigned char *param, *p;
int al, j, ok;
long i, param_len, n, alg_k, alg_a;
EVP_PKEY *pkey = NULL;
const EVP_MD *md = NULL;
#ifndef OPENSSL_NO_RSA
RSA *rsa = NULL;
#endif
#ifndef OPENSSL_NO_DH
DH *dh = NULL;
#endif
#ifndef OPENSSL_NO_EC
EC_KEY *ecdh = NULL;
BN_CTX *bn_ctx = NULL;
EC_POINT *srvr_ecpoint = NULL;
int curve_nid = 0;
int encoded_pt_len = 0;
#endif
EVP_MD_CTX_init(&md_ctx);
n = s->method->ssl_get_message(s,
SSL3_ST_CR_KEY_EXCH_A,
SSL3_ST_CR_KEY_EXCH_B,
-1, s->max_cert_list, &ok);
if (!ok)
return ((int)n);
alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE) {
if (alg_k & (SSL_kDHE | SSL_kECDHE)) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_UNEXPECTED_MESSAGE);
al = SSL_AD_UNEXPECTED_MESSAGE;
goto f_err;
}
#ifndef OPENSSL_NO_PSK
if (alg_k & SSL_kPSK) {
s->session->sess_cert = ssl_sess_cert_new();
OPENSSL_free(s->ctx->psk_identity_hint);
s->ctx->psk_identity_hint = NULL;
}
#endif
s->s3->tmp.reuse_message = 1;
return (1);
}
param = p = (unsigned char *)s->init_msg;
if (s->session->sess_cert != NULL) {
#ifndef OPENSSL_NO_RSA
RSA_free(s->session->sess_cert->peer_rsa_tmp);
s->session->sess_cert->peer_rsa_tmp = NULL;
#endif
#ifndef OPENSSL_NO_DH
DH_free(s->session->sess_cert->peer_dh_tmp);
s->session->sess_cert->peer_dh_tmp = NULL;
#endif
#ifndef OPENSSL_NO_EC
EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
s->session->sess_cert->peer_ecdh_tmp = NULL;
#endif
} else {
s->session->sess_cert = ssl_sess_cert_new();
}
param_len = 0;
alg_a = s->s3->tmp.new_cipher->algorithm_auth;
al = SSL_AD_DECODE_ERROR;
#ifndef OPENSSL_NO_PSK
if (alg_k & SSL_kPSK) {
char tmp_id_hint[PSK_MAX_IDENTITY_LEN + 1];
param_len = 2;
if (param_len > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
n2s(p, i);
if (i > PSK_MAX_IDENTITY_LEN) {
al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_DATA_LENGTH_TOO_LONG);
goto f_err;
}
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,
SSL_R_BAD_PSK_IDENTITY_HINT_LENGTH);
goto f_err;
}
param_len += i;
memcpy(tmp_id_hint, p, i);
memset(tmp_id_hint + i, 0, PSK_MAX_IDENTITY_LEN + 1 - i);
OPENSSL_free(s->ctx->psk_identity_hint);
s->ctx->psk_identity_hint = BUF_strdup(tmp_id_hint);
if (s->ctx->psk_identity_hint == NULL) {
al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
goto f_err;
}
p += i;
n -= param_len;
} else
#endif
#ifndef OPENSSL_NO_SRP
if (alg_k & SSL_kSRP) {
param_len = 2;
if (param_len > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SRP_N_LENGTH);
goto f_err;
}
param_len += i;
if ((s->srp_ctx.N = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (2 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 2;
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SRP_G_LENGTH);
goto f_err;
}
param_len += i;
if ((s->srp_ctx.g = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (1 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 1;
i = (unsigned int)(p[0]);
p++;
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SRP_S_LENGTH);
goto f_err;
}
param_len += i;
if ((s->srp_ctx.s = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (2 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 2;
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SRP_B_LENGTH);
goto f_err;
}
param_len += i;
if ((s->srp_ctx.B = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
n -= param_len;
if (!srp_verify_server_param(s, &al)) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SRP_PARAMETERS);
goto f_err;
}
# ifndef OPENSSL_NO_RSA
if (alg_a & SSL_aRSA)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
# else
if (0) ;
# endif
# ifndef OPENSSL_NO_DSA
else if (alg_a & SSL_aDSS)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].
x509);
# endif
} else
#endif
#ifndef OPENSSL_NO_RSA
if (alg_k & SSL_kRSA) {
if (!SSL_C_IS_EXPORT(s->s3->tmp.new_cipher)) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_UNEXPECTED_MESSAGE);
goto f_err;
}
if ((rsa = RSA_new()) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
goto err;
}
param_len = 2;
if (param_len > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_RSA_MODULUS_LENGTH);
goto f_err;
}
param_len += i;
if ((rsa->n = BN_bin2bn(p, i, rsa->n)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (2 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 2;
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_RSA_E_LENGTH);
goto f_err;
}
param_len += i;
if ((rsa->e = BN_bin2bn(p, i, rsa->e)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
n -= param_len;
if (alg_a & SSL_aRSA)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
else {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
s->session->sess_cert->peer_rsa_tmp = rsa;
rsa = NULL;
}
#else
if (0) ;
#endif
#ifndef OPENSSL_NO_DH
else if (alg_k & SSL_kDHE) {
if ((dh = DH_new()) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_DH_LIB);
goto err;
}
param_len = 2;
if (param_len > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_DH_P_LENGTH);
goto f_err;
}
param_len += i;
if ((dh->p = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (2 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 2;
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_DH_G_LENGTH);
goto f_err;
}
param_len += i;
if ((dh->g = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
if (2 > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
param_len += 2;
n2s(p, i);
if (i > n - param_len) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_DH_PUB_KEY_LENGTH);
goto f_err;
}
param_len += i;
if ((dh->pub_key = BN_bin2bn(p, i, NULL)) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_BN_LIB);
goto err;
}
p += i;
n -= param_len;
if (!ssl_security(s, SSL_SECOP_TMP_DH, DH_security_bits(dh), 0, dh)) {
al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_DH_KEY_TOO_SMALL);
goto f_err;
}
# ifndef OPENSSL_NO_RSA
if (alg_a & SSL_aRSA)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
# else
if (0) ;
# endif
# ifndef OPENSSL_NO_DSA
else if (alg_a & SSL_aDSS)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].
x509);
# endif
s->session->sess_cert->peer_dh_tmp = dh;
dh = NULL;
}
#endif
#ifndef OPENSSL_NO_EC
else if (alg_k & SSL_kECDHE) {
EC_GROUP *ngroup;
const EC_GROUP *group;
if ((ecdh = EC_KEY_new()) == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
goto err;
}
param_len = 4;
if (param_len > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
if (!tls1_check_curve(s, p, 3)) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_WRONG_CURVE);
goto f_err;
}
if ((curve_nid = tls1_ec_curve_id2nid(*(p + 2))) == 0) {
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,
SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
goto f_err;
}
ngroup = EC_GROUP_new_by_curve_name(curve_nid);
if (ngroup == NULL) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_EC_LIB);
goto err;
}
if (EC_KEY_set_group(ecdh, ngroup) == 0) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_EC_LIB);
goto err;
}
EC_GROUP_free(ngroup);
group = EC_KEY_get0_group(ecdh);
if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
(EC_GROUP_get_degree(group) > 163)) {
al = SSL_AD_EXPORT_RESTRICTION;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,
SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
goto f_err;
}
p += 3;
if (((srvr_ecpoint = EC_POINT_new(group)) == NULL) ||
((bn_ctx = BN_CTX_new()) == NULL)) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
goto err;
}
encoded_pt_len = *p;
p += 1;
if ((encoded_pt_len > n - param_len) ||
(EC_POINT_oct2point(group, srvr_ecpoint,
p, encoded_pt_len, bn_ctx) == 0)) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_ECPOINT);
goto f_err;
}
param_len += encoded_pt_len;
n -= param_len;
p += encoded_pt_len;
if (0) ;
# ifndef OPENSSL_NO_RSA
else if (alg_a & SSL_aRSA)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
# endif
# ifndef OPENSSL_NO_EC
else if (alg_a & SSL_aECDSA)
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
# endif
EC_KEY_set_public_key(ecdh, srvr_ecpoint);
s->session->sess_cert->peer_ecdh_tmp = ecdh;
ecdh = NULL;
BN_CTX_free(bn_ctx);
bn_ctx = NULL;
EC_POINT_free(srvr_ecpoint);
srvr_ecpoint = NULL;
} else if (alg_k) {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_UNEXPECTED_MESSAGE);
goto f_err;
}
#endif
if (pkey != NULL) {
if (SSL_USE_SIGALGS(s)) {
int rv;
if (2 > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
rv = tls12_check_peer_sigalg(&md, s, p, pkey);
if (rv == -1)
goto err;
else if (rv == 0) {
goto f_err;
}
#ifdef SSL_DEBUG
fprintf(stderr, "USING TLSv1.2 HASH %s\n", EVP_MD_name(md));
#endif
p += 2;
n -= 2;
} else
md = EVP_sha1();
if (2 > n) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto f_err;
}
n2s(p, i);
n -= 2;
j = EVP_PKEY_size(pkey);
if ((i != n) || (n > j) || (n <= 0)) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_WRONG_SIGNATURE_LENGTH);
goto f_err;
}
#ifndef OPENSSL_NO_RSA
if (pkey->type == EVP_PKEY_RSA && !SSL_USE_SIGALGS(s)) {
int num;
unsigned int size;
j = 0;
q = md_buf;
for (num = 2; num > 0; num--) {
EVP_MD_CTX_set_flags(&md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
EVP_DigestInit_ex(&md_ctx, (num == 2)
? s->ctx->md5 : s->ctx->sha1, NULL);
EVP_DigestUpdate(&md_ctx, &(s->s3->client_random[0]),
SSL3_RANDOM_SIZE);
EVP_DigestUpdate(&md_ctx, &(s->s3->server_random[0]),
SSL3_RANDOM_SIZE);
EVP_DigestUpdate(&md_ctx, param, param_len);
EVP_DigestFinal_ex(&md_ctx, q, &size);
q += size;
j += size;
}
i = RSA_verify(NID_md5_sha1, md_buf, j, p, n, pkey->pkey.rsa);
if (i < 0) {
al = SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_RSA_DECRYPT);
goto f_err;
}
if (i == 0) {
al = SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SIGNATURE);
goto f_err;
}
} else
#endif
{
EVP_VerifyInit_ex(&md_ctx, md, NULL);
EVP_VerifyUpdate(&md_ctx, &(s->s3->client_random[0]),
SSL3_RANDOM_SIZE);
EVP_VerifyUpdate(&md_ctx, &(s->s3->server_random[0]),
SSL3_RANDOM_SIZE);
EVP_VerifyUpdate(&md_ctx, param, param_len);
if (EVP_VerifyFinal(&md_ctx, p, (int)n, pkey) <= 0) {
al = SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_BAD_SIGNATURE);
goto f_err;
}
}
} else {
if (!(alg_a & (SSL_aNULL | SSL_aSRP)) && !(alg_k & SSL_kPSK)) {
if (ssl3_check_cert_and_algorithm(s))
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
if (n != 0) {
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, SSL_R_EXTRA_DATA_IN_MESSAGE);
goto f_err;
}
}
EVP_PKEY_free(pkey);
EVP_MD_CTX_cleanup(&md_ctx);
return (1);
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
EVP_PKEY_free(pkey);
#ifndef OPENSSL_NO_RSA
RSA_free(rsa);
#endif
#ifndef OPENSSL_NO_DH
DH_free(dh);
#endif
#ifndef OPENSSL_NO_EC
BN_CTX_free(bn_ctx);
EC_POINT_free(srvr_ecpoint);
EC_KEY_free(ecdh);
#endif
EVP_MD_CTX_cleanup(&md_ctx);
s->state = SSL_ST_ERR;
return (-1);
} | 367,605 |
0 | int ssl3_send_client_key_exchange(SSL *s)
{
unsigned char *p;
int n;
unsigned long alg_k;
#ifndef OPENSSL_NO_RSA
unsigned char *q;
EVP_PKEY *pkey = NULL;
#endif
#ifndef OPENSSL_NO_EC
EC_KEY *clnt_ecdh = NULL;
const EC_POINT *srvr_ecpoint = NULL;
EVP_PKEY *srvr_pub_pkey = NULL;
unsigned char *encodedPoint = NULL;
int encoded_pt_len = 0;
BN_CTX *bn_ctx = NULL;
#endif
unsigned char *pms = NULL;
size_t pmslen = 0;
if (s->state == SSL3_ST_CW_KEY_EXCH_A) {
p = ssl_handshake_start(s);
alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
/* Fool emacs indentation */
if (0) {
}
#ifndef OPENSSL_NO_RSA
else if (alg_k & SSL_kRSA) {
RSA *rsa;
pmslen = SSL_MAX_MASTER_KEY_LENGTH;
pms = OPENSSL_malloc(pmslen);
if (!pms)
goto memerr;
if (s->session->sess_cert == NULL) {
/*
* We should always have a server certificate with SSL_kRSA.
*/
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
if (s->session->sess_cert->peer_rsa_tmp != NULL)
rsa = s->session->sess_cert->peer_rsa_tmp;
else {
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].
x509);
if ((pkey == NULL) || (pkey->type != EVP_PKEY_RSA)
|| (pkey->pkey.rsa == NULL)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
rsa = pkey->pkey.rsa;
EVP_PKEY_free(pkey);
}
pms[0] = s->client_version >> 8;
pms[1] = s->client_version & 0xff;
if (RAND_bytes(pms + 2, pmslen - 2) <= 0)
goto err;
q = p;
/* Fix buf for TLS and beyond */
if (s->version > SSL3_VERSION)
p += 2;
n = RSA_public_encrypt(pmslen, pms, p, rsa, RSA_PKCS1_PADDING);
# ifdef PKCS1_CHECK
if (s->options & SSL_OP_PKCS1_CHECK_1)
p[1]++;
if (s->options & SSL_OP_PKCS1_CHECK_2)
tmp_buf[0] = 0x70;
# endif
if (n <= 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_BAD_RSA_ENCRYPT);
goto err;
}
/* Fix buf for TLS and beyond */
if (s->version > SSL3_VERSION) {
s2n(n, q);
n += 2;
}
}
#endif
#ifndef OPENSSL_NO_DH
else if (alg_k & (SSL_kDHE | SSL_kDHr | SSL_kDHd)) {
DH *dh_srvr, *dh_clnt;
SESS_CERT *scert = s->session->sess_cert;
if (scert == NULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_UNEXPECTED_MESSAGE);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_UNEXPECTED_MESSAGE);
goto err;
}
if (scert->peer_dh_tmp != NULL)
dh_srvr = scert->peer_dh_tmp;
else {
/* we get them from the cert */
int idx = scert->peer_cert_type;
EVP_PKEY *spkey = NULL;
dh_srvr = NULL;
if (idx >= 0)
spkey = X509_get_pubkey(scert->peer_pkeys[idx].x509);
if (spkey) {
dh_srvr = EVP_PKEY_get1_DH(spkey);
EVP_PKEY_free(spkey);
}
if (dh_srvr == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
}
if (s->s3->flags & TLS1_FLAGS_SKIP_CERT_VERIFY) {
/* Use client certificate key */
EVP_PKEY *clkey = s->cert->key->privatekey;
dh_clnt = NULL;
if (clkey)
dh_clnt = EVP_PKEY_get1_DH(clkey);
if (dh_clnt == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
} else {
/* generate a new random key */
if ((dh_clnt = DHparams_dup(dh_srvr)) == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_DH_LIB);
goto err;
}
if (!DH_generate_key(dh_clnt)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_DH_LIB);
DH_free(dh_clnt);
goto err;
}
}
pmslen = DH_size(dh_clnt);
pms = OPENSSL_malloc(pmslen);
if (!pms)
goto memerr;
/*
* use the 'p' output buffer for the DH key, but make sure to
* clear it out afterwards
*/
n = DH_compute_key(pms, dh_srvr->pub_key, dh_clnt);
if (scert->peer_dh_tmp == NULL)
DH_free(dh_srvr);
if (n <= 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_DH_LIB);
DH_free(dh_clnt);
goto err;
}
pmslen = n;
if (s->s3->flags & TLS1_FLAGS_SKIP_CERT_VERIFY)
n = 0;
else {
/* send off the data */
n = BN_num_bytes(dh_clnt->pub_key);
s2n(n, p);
BN_bn2bin(dh_clnt->pub_key, p);
n += 2;
}
DH_free(dh_clnt);
/* perhaps clean things up a bit EAY EAY EAY EAY */
}
#endif
#ifndef OPENSSL_NO_EC
else if (alg_k & (SSL_kECDHE | SSL_kECDHr | SSL_kECDHe)) {
const EC_GROUP *srvr_group = NULL;
EC_KEY *tkey;
int ecdh_clnt_cert = 0;
int field_size = 0;
if (s->session->sess_cert == NULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_UNEXPECTED_MESSAGE);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_UNEXPECTED_MESSAGE);
goto err;
}
/*
* Did we send out the client's ECDH share for use in premaster
* computation as part of client certificate? If so, set
* ecdh_clnt_cert to 1.
*/
if ((alg_k & (SSL_kECDHr | SSL_kECDHe)) && (s->cert != NULL)) {
/*-
* XXX: For now, we do not support client
* authentication using ECDH certificates.
* To add such support, one needs to add
* code that checks for appropriate
* conditions and sets ecdh_clnt_cert to 1.
* For example, the cert have an ECC
* key on the same curve as the server's
* and the key should be authorized for
* key agreement.
*
* One also needs to add code in ssl3_connect
* to skip sending the certificate verify
* message.
*
* if ((s->cert->key->privatekey != NULL) &&
* (s->cert->key->privatekey->type ==
* EVP_PKEY_EC) && ...)
* ecdh_clnt_cert = 1;
*/
}
if (s->session->sess_cert->peer_ecdh_tmp != NULL) {
tkey = s->session->sess_cert->peer_ecdh_tmp;
} else {
/* Get the Server Public Key from Cert */
srvr_pub_pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
if ((srvr_pub_pkey == NULL)
|| (srvr_pub_pkey->type != EVP_PKEY_EC)
|| (srvr_pub_pkey->pkey.ec == NULL)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
tkey = srvr_pub_pkey->pkey.ec;
}
srvr_group = EC_KEY_get0_group(tkey);
srvr_ecpoint = EC_KEY_get0_public_key(tkey);
if ((srvr_group == NULL) || (srvr_ecpoint == NULL)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
if ((clnt_ecdh = EC_KEY_new()) == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EC_KEY_set_group(clnt_ecdh, srvr_group)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_EC_LIB);
goto err;
}
if (ecdh_clnt_cert) {
/*
* Reuse key info from our certificate We only need our
* private key to perform the ECDH computation.
*/
const BIGNUM *priv_key;
tkey = s->cert->key->privatekey->pkey.ec;
priv_key = EC_KEY_get0_private_key(tkey);
if (priv_key == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EC_KEY_set_private_key(clnt_ecdh, priv_key)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_EC_LIB);
goto err;
}
} else {
/* Generate a new ECDH key pair */
if (!(EC_KEY_generate_key(clnt_ecdh))) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_ECDH_LIB);
goto err;
}
}
/*
* use the 'p' output buffer for the ECDH key, but make sure to
* clear it out afterwards
*/
field_size = EC_GROUP_get_degree(srvr_group);
if (field_size <= 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
goto err;
}
pmslen = (field_size + 7) / 8;
pms = OPENSSL_malloc(pmslen);
if (!pms)
goto memerr;
n = ECDH_compute_key(pms, pmslen, srvr_ecpoint, clnt_ecdh, NULL);
if (n <= 0 || pmslen != (size_t)n) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
goto err;
}
if (ecdh_clnt_cert) {
/* Send empty client key exch message */
n = 0;
} else {
/*
* First check the size of encoding and allocate memory
* accordingly.
*/
encoded_pt_len =
EC_POINT_point2oct(srvr_group,
EC_KEY_get0_public_key(clnt_ecdh),
POINT_CONVERSION_UNCOMPRESSED,
NULL, 0, NULL);
encodedPoint = (unsigned char *)
OPENSSL_malloc(encoded_pt_len * sizeof(unsigned char));
bn_ctx = BN_CTX_new();
if ((encodedPoint == NULL) || (bn_ctx == NULL)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto err;
}
/* Encode the public key */
n = EC_POINT_point2oct(srvr_group,
EC_KEY_get0_public_key(clnt_ecdh),
POINT_CONVERSION_UNCOMPRESSED,
encodedPoint, encoded_pt_len, bn_ctx);
*p = n; /* length of encoded point */
/* Encoded point will be copied here */
p += 1;
/* copy the point */
memcpy(p, encodedPoint, n);
/* increment n to account for length field */
n += 1;
}
/* Free allocated memory */
BN_CTX_free(bn_ctx);
OPENSSL_free(encodedPoint);
EC_KEY_free(clnt_ecdh);
EVP_PKEY_free(srvr_pub_pkey);
}
#endif /* !OPENSSL_NO_EC */
else if (alg_k & SSL_kGOST) {
/* GOST key exchange message creation */
EVP_PKEY_CTX *pkey_ctx;
X509 *peer_cert;
size_t msglen;
unsigned int md_len;
int keytype;
unsigned char shared_ukm[32], tmp[256];
EVP_MD_CTX *ukm_hash;
EVP_PKEY *pub_key;
pmslen = 32;
pms = OPENSSL_malloc(pmslen);
if (!pms)
goto memerr;
/*
* Get server sertificate PKEY and create ctx from it
*/
peer_cert =
s->session->
sess_cert->peer_pkeys[(keytype = SSL_PKEY_GOST01)].x509;
if (!peer_cert)
peer_cert =
s->session->
sess_cert->peer_pkeys[(keytype = SSL_PKEY_GOST94)].x509;
if (!peer_cert) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_NO_GOST_CERTIFICATE_SENT_BY_PEER);
goto err;
}
pkey_ctx = EVP_PKEY_CTX_new(pub_key =
X509_get_pubkey(peer_cert), NULL);
/*
* If we have send a certificate, and certificate key
*
* * parameters match those of server certificate, use
* certificate key for key exchange
*/
/* Otherwise, generate ephemeral key pair */
EVP_PKEY_encrypt_init(pkey_ctx);
/* Generate session key */
if (RAND_bytes(pms, pmslen) <= 0) {
EVP_PKEY_CTX_free(pkey_ctx);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
};
/*
* If we have client certificate, use its secret as peer key
*/
if (s->s3->tmp.cert_req && s->cert->key->privatekey) {
if (EVP_PKEY_derive_set_peer
(pkey_ctx, s->cert->key->privatekey) <= 0) {
/*
* If there was an error - just ignore it. Ephemeral key
* * would be used
*/
ERR_clear_error();
}
}
/*
* Compute shared IV and store it in algorithm-specific context
* data
*/
ukm_hash = EVP_MD_CTX_create();
EVP_DigestInit(ukm_hash,
EVP_get_digestbynid(NID_id_GostR3411_94));
EVP_DigestUpdate(ukm_hash, s->s3->client_random,
SSL3_RANDOM_SIZE);
EVP_DigestUpdate(ukm_hash, s->s3->server_random,
SSL3_RANDOM_SIZE);
EVP_DigestFinal_ex(ukm_hash, shared_ukm, &md_len);
EVP_MD_CTX_destroy(ukm_hash);
if (EVP_PKEY_CTX_ctrl
(pkey_ctx, -1, EVP_PKEY_OP_ENCRYPT, EVP_PKEY_CTRL_SET_IV, 8,
shared_ukm) < 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_LIBRARY_BUG);
goto err;
}
/* Make GOST keytransport blob message */
/*
* Encapsulate it into sequence
*/
*(p++) = V_ASN1_SEQUENCE | V_ASN1_CONSTRUCTED;
msglen = 255;
if (EVP_PKEY_encrypt(pkey_ctx, tmp, &msglen, pms, pmslen) < 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_LIBRARY_BUG);
goto err;
}
if (msglen >= 0x80) {
*(p++) = 0x81;
*(p++) = msglen & 0xff;
n = msglen + 3;
} else {
*(p++) = msglen & 0xff;
n = msglen + 2;
}
memcpy(p, tmp, msglen);
/* Check if pubkey from client certificate was used */
if (EVP_PKEY_CTX_ctrl
(pkey_ctx, -1, -1, EVP_PKEY_CTRL_PEER_KEY, 2, NULL) > 0) {
/* Set flag "skip certificate verify" */
s->s3->flags |= TLS1_FLAGS_SKIP_CERT_VERIFY;
}
EVP_PKEY_CTX_free(pkey_ctx);
EVP_PKEY_free(pub_key);
}
#ifndef OPENSSL_NO_SRP
else if (alg_k & SSL_kSRP) {
if (s->srp_ctx.A != NULL) {
/* send off the data */
n = BN_num_bytes(s->srp_ctx.A);
s2n(n, p);
BN_bn2bin(s->srp_ctx.A, p);
n += 2;
} else {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
OPENSSL_free(s->session->srp_username);
s->session->srp_username = BUF_strdup(s->srp_ctx.login);
if (s->session->srp_username == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto err;
}
}
#endif
#ifndef OPENSSL_NO_PSK
else if (alg_k & SSL_kPSK) {
/*
* The callback needs PSK_MAX_IDENTITY_LEN + 1 bytes to return a
* \0-terminated identity. The last byte is for us for simulating
* strnlen.
*/
char identity[PSK_MAX_IDENTITY_LEN + 2];
size_t identity_len;
unsigned char *t = NULL;
unsigned int psk_len = 0;
int psk_err = 1;
n = 0;
if (s->psk_client_callback == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_PSK_NO_CLIENT_CB);
goto err;
}
memset(identity, 0, sizeof(identity));
/* Allocate maximum size buffer */
pmslen = PSK_MAX_PSK_LEN * 2 + 4;
pms = OPENSSL_malloc(pmslen);
if (!pms)
goto memerr;
psk_len = s->psk_client_callback(s, s->ctx->psk_identity_hint,
identity, sizeof(identity) - 1,
pms, pmslen);
if (psk_len > PSK_MAX_PSK_LEN) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto psk_err;
} else if (psk_len == 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_PSK_IDENTITY_NOT_FOUND);
goto psk_err;
}
/* Change pmslen to real length */
pmslen = 2 + psk_len + 2 + psk_len;
identity[PSK_MAX_IDENTITY_LEN + 1] = '\0';
identity_len = strlen(identity);
if (identity_len > PSK_MAX_IDENTITY_LEN) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto psk_err;
}
/* create PSK pre_master_secret */
t = pms;
memmove(pms + psk_len + 4, pms, psk_len);
s2n(psk_len, t);
memset(t, 0, psk_len);
t += psk_len;
s2n(psk_len, t);
OPENSSL_free(s->session->psk_identity_hint);
s->session->psk_identity_hint =
BUF_strdup(s->ctx->psk_identity_hint);
if (s->ctx->psk_identity_hint != NULL
&& s->session->psk_identity_hint == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto psk_err;
}
OPENSSL_free(s->session->psk_identity);
s->session->psk_identity = BUF_strdup(identity);
if (s->session->psk_identity == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto psk_err;
}
s2n(identity_len, p);
memcpy(p, identity, identity_len);
n = 2 + identity_len;
psk_err = 0;
psk_err:
OPENSSL_cleanse(identity, sizeof(identity));
if (psk_err != 0) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
goto err;
}
}
#endif
else {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
if (!ssl_set_handshake_header(s, SSL3_MT_CLIENT_KEY_EXCHANGE, n)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
s->state = SSL3_ST_CW_KEY_EXCH_B;
}
/* SSL3_ST_CW_KEY_EXCH_B */
n = ssl_do_write(s);
#ifndef OPENSSL_NO_SRP
/* Check for SRP */
if (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kSRP) {
/*
* If everything written generate master key: no need to save PMS as
* SRP_generate_client_master_secret generates it internally.
*/
if (n > 0) {
if ((s->session->master_key_length =
SRP_generate_client_master_secret(s,
s->session->master_key)) <
0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
}
} else
#endif
/* If we haven't written everything save PMS */
if (n <= 0) {
s->s3->tmp.pms = pms;
s->s3->tmp.pmslen = pmslen;
} else {
/* If we don't have a PMS restore */
if (pms == NULL) {
pms = s->s3->tmp.pms;
pmslen = s->s3->tmp.pmslen;
}
if (pms == NULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
goto err;
}
s->session->master_key_length =
s->method->ssl3_enc->generate_master_secret(s,
s->
session->master_key,
pms, pmslen);
OPENSSL_clear_free(pms, pmslen);
s->s3->tmp.pms = NULL;
if (s->session->master_key_length < 0) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
}
return n;
memerr:
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
err:
OPENSSL_clear_free(pms, pmslen);
s->s3->tmp.pms = NULL;
#ifndef OPENSSL_NO_EC
BN_CTX_free(bn_ctx);
OPENSSL_free(encodedPoint);
EC_KEY_free(clnt_ecdh);
EVP_PKEY_free(srvr_pub_pkey);
#endif
s->state = SSL_ST_ERR;
return (-1);
} | int ssl3_send_client_key_exchange(SSL *s)
{
unsigned char *p;
int n;
unsigned long alg_k;
#ifndef OPENSSL_NO_RSA
unsigned char *q;
EVP_PKEY *pkey = NULL;
#endif
#ifndef OPENSSL_NO_EC
EC_KEY *clnt_ecdh = NULL;
const EC_POINT *srvr_ecpoint = NULL;
EVP_PKEY *srvr_pub_pkey = NULL;
unsigned char *encodedPoint = NULL;
int encoded_pt_len = 0;
BN_CTX *bn_ctx = NULL;
#endif
unsigned char *pms = NULL;
size_t pmslen = 0;
if (s->state == SSL3_ST_CW_KEY_EXCH_A) {
p = ssl_handshake_start(s);
alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
if (0) {
}
#ifndef OPENSSL_NO_RSA
else if (alg_k & SSL_kRSA) {
RSA *rsa;
pmslen = SSL_MAX_MASTER_KEY_LENGTH;
pms = OPENSSL_malloc(pmslen);
if (!pms)
goto memerr;
if (s->session->sess_cert == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
if (s->session->sess_cert->peer_rsa_tmp != NULL)
rsa = s->session->sess_cert->peer_rsa_tmp;
else {
pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].
x509);
if ((pkey == NULL) || (pkey->type != EVP_PKEY_RSA)
|| (pkey->pkey.rsa == NULL)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
rsa = pkey->pkey.rsa;
EVP_PKEY_free(pkey);
}
pms[0] = s->client_version >> 8;
pms[1] = s->client_version & 0xff;
if (RAND_bytes(pms + 2, pmslen - 2) <= 0)
goto err;
q = p;
if (s->version > SSL3_VERSION)
p += 2;
n = RSA_public_encrypt(pmslen, pms, p, rsa, RSA_PKCS1_PADDING);
# ifdef PKCS1_CHECK
if (s->options & SSL_OP_PKCS1_CHECK_1)
p[1]++;
if (s->options & SSL_OP_PKCS1_CHECK_2)
tmp_buf[0] = 0x70;
# endif
if (n <= 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_BAD_RSA_ENCRYPT);
goto err;
}
if (s->version > SSL3_VERSION) {
s2n(n, q);
n += 2;
}
}
#endif
#ifndef OPENSSL_NO_DH
else if (alg_k & (SSL_kDHE | SSL_kDHr | SSL_kDHd)) {
DH *dh_srvr, *dh_clnt;
SESS_CERT *scert = s->session->sess_cert;
if (scert == NULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_UNEXPECTED_MESSAGE);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_UNEXPECTED_MESSAGE);
goto err;
}
if (scert->peer_dh_tmp != NULL)
dh_srvr = scert->peer_dh_tmp;
else {
int idx = scert->peer_cert_type;
EVP_PKEY *spkey = NULL;
dh_srvr = NULL;
if (idx >= 0)
spkey = X509_get_pubkey(scert->peer_pkeys[idx].x509);
if (spkey) {
dh_srvr = EVP_PKEY_get1_DH(spkey);
EVP_PKEY_free(spkey);
}
if (dh_srvr == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
}
if (s->s3->flags & TLS1_FLAGS_SKIP_CERT_VERIFY) {
EVP_PKEY *clkey = s->cert->key->privatekey;
dh_clnt = NULL;
if (clkey)
dh_clnt = EVP_PKEY_get1_DH(clkey);
if (dh_clnt == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
} else {
if ((dh_clnt = DHparams_dup(dh_srvr)) == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_DH_LIB);
goto err;
}
if (!DH_generate_key(dh_clnt)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_DH_LIB);
DH_free(dh_clnt);
goto err;
}
}
pmslen = DH_size(dh_clnt);
pms = OPENSSL_malloc(pmslen);
if (!pms)
goto memerr;
n = DH_compute_key(pms, dh_srvr->pub_key, dh_clnt);
if (scert->peer_dh_tmp == NULL)
DH_free(dh_srvr);
if (n <= 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_DH_LIB);
DH_free(dh_clnt);
goto err;
}
pmslen = n;
if (s->s3->flags & TLS1_FLAGS_SKIP_CERT_VERIFY)
n = 0;
else {
n = BN_num_bytes(dh_clnt->pub_key);
s2n(n, p);
BN_bn2bin(dh_clnt->pub_key, p);
n += 2;
}
DH_free(dh_clnt);
}
#endif
#ifndef OPENSSL_NO_EC
else if (alg_k & (SSL_kECDHE | SSL_kECDHr | SSL_kECDHe)) {
const EC_GROUP *srvr_group = NULL;
EC_KEY *tkey;
int ecdh_clnt_cert = 0;
int field_size = 0;
if (s->session->sess_cert == NULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_UNEXPECTED_MESSAGE);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_UNEXPECTED_MESSAGE);
goto err;
}
if ((alg_k & (SSL_kECDHr | SSL_kECDHe)) && (s->cert != NULL)) {
}
if (s->session->sess_cert->peer_ecdh_tmp != NULL) {
tkey = s->session->sess_cert->peer_ecdh_tmp;
} else {
srvr_pub_pkey =
X509_get_pubkey(s->session->
sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
if ((srvr_pub_pkey == NULL)
|| (srvr_pub_pkey->type != EVP_PKEY_EC)
|| (srvr_pub_pkey->pkey.ec == NULL)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
tkey = srvr_pub_pkey->pkey.ec;
}
srvr_group = EC_KEY_get0_group(tkey);
srvr_ecpoint = EC_KEY_get0_public_key(tkey);
if ((srvr_group == NULL) || (srvr_ecpoint == NULL)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
if ((clnt_ecdh = EC_KEY_new()) == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EC_KEY_set_group(clnt_ecdh, srvr_group)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_EC_LIB);
goto err;
}
if (ecdh_clnt_cert) {
const BIGNUM *priv_key;
tkey = s->cert->key->privatekey->pkey.ec;
priv_key = EC_KEY_get0_private_key(tkey);
if (priv_key == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EC_KEY_set_private_key(clnt_ecdh, priv_key)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_EC_LIB);
goto err;
}
} else {
if (!(EC_KEY_generate_key(clnt_ecdh))) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_ECDH_LIB);
goto err;
}
}
field_size = EC_GROUP_get_degree(srvr_group);
if (field_size <= 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
goto err;
}
pmslen = (field_size + 7) / 8;
pms = OPENSSL_malloc(pmslen);
if (!pms)
goto memerr;
n = ECDH_compute_key(pms, pmslen, srvr_ecpoint, clnt_ecdh, NULL);
if (n <= 0 || pmslen != (size_t)n) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
goto err;
}
if (ecdh_clnt_cert) {
n = 0;
} else {
encoded_pt_len =
EC_POINT_point2oct(srvr_group,
EC_KEY_get0_public_key(clnt_ecdh),
POINT_CONVERSION_UNCOMPRESSED,
NULL, 0, NULL);
encodedPoint = (unsigned char *)
OPENSSL_malloc(encoded_pt_len * sizeof(unsigned char));
bn_ctx = BN_CTX_new();
if ((encodedPoint == NULL) || (bn_ctx == NULL)) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto err;
}
n = EC_POINT_point2oct(srvr_group,
EC_KEY_get0_public_key(clnt_ecdh),
POINT_CONVERSION_UNCOMPRESSED,
encodedPoint, encoded_pt_len, bn_ctx);
*p = n;
p += 1;
memcpy(p, encodedPoint, n);
n += 1;
}
BN_CTX_free(bn_ctx);
OPENSSL_free(encodedPoint);
EC_KEY_free(clnt_ecdh);
EVP_PKEY_free(srvr_pub_pkey);
}
#endif
else if (alg_k & SSL_kGOST) {
EVP_PKEY_CTX *pkey_ctx;
X509 *peer_cert;
size_t msglen;
unsigned int md_len;
int keytype;
unsigned char shared_ukm[32], tmp[256];
EVP_MD_CTX *ukm_hash;
EVP_PKEY *pub_key;
pmslen = 32;
pms = OPENSSL_malloc(pmslen);
if (!pms)
goto memerr;
peer_cert =
s->session->
sess_cert->peer_pkeys[(keytype = SSL_PKEY_GOST01)].x509;
if (!peer_cert)
peer_cert =
s->session->
sess_cert->peer_pkeys[(keytype = SSL_PKEY_GOST94)].x509;
if (!peer_cert) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_NO_GOST_CERTIFICATE_SENT_BY_PEER);
goto err;
}
pkey_ctx = EVP_PKEY_CTX_new(pub_key =
X509_get_pubkey(peer_cert), NULL);
EVP_PKEY_encrypt_init(pkey_ctx);
if (RAND_bytes(pms, pmslen) <= 0) {
EVP_PKEY_CTX_free(pkey_ctx);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
};
if (s->s3->tmp.cert_req && s->cert->key->privatekey) {
if (EVP_PKEY_derive_set_peer
(pkey_ctx, s->cert->key->privatekey) <= 0) {
ERR_clear_error();
}
}
ukm_hash = EVP_MD_CTX_create();
EVP_DigestInit(ukm_hash,
EVP_get_digestbynid(NID_id_GostR3411_94));
EVP_DigestUpdate(ukm_hash, s->s3->client_random,
SSL3_RANDOM_SIZE);
EVP_DigestUpdate(ukm_hash, s->s3->server_random,
SSL3_RANDOM_SIZE);
EVP_DigestFinal_ex(ukm_hash, shared_ukm, &md_len);
EVP_MD_CTX_destroy(ukm_hash);
if (EVP_PKEY_CTX_ctrl
(pkey_ctx, -1, EVP_PKEY_OP_ENCRYPT, EVP_PKEY_CTRL_SET_IV, 8,
shared_ukm) < 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_LIBRARY_BUG);
goto err;
}
*(p++) = V_ASN1_SEQUENCE | V_ASN1_CONSTRUCTED;
msglen = 255;
if (EVP_PKEY_encrypt(pkey_ctx, tmp, &msglen, pms, pmslen) < 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_LIBRARY_BUG);
goto err;
}
if (msglen >= 0x80) {
*(p++) = 0x81;
*(p++) = msglen & 0xff;
n = msglen + 3;
} else {
*(p++) = msglen & 0xff;
n = msglen + 2;
}
memcpy(p, tmp, msglen);
if (EVP_PKEY_CTX_ctrl
(pkey_ctx, -1, -1, EVP_PKEY_CTRL_PEER_KEY, 2, NULL) > 0) {
s->s3->flags |= TLS1_FLAGS_SKIP_CERT_VERIFY;
}
EVP_PKEY_CTX_free(pkey_ctx);
EVP_PKEY_free(pub_key);
}
#ifndef OPENSSL_NO_SRP
else if (alg_k & SSL_kSRP) {
if (s->srp_ctx.A != NULL) {
n = BN_num_bytes(s->srp_ctx.A);
s2n(n, p);
BN_bn2bin(s->srp_ctx.A, p);
n += 2;
} else {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
OPENSSL_free(s->session->srp_username);
s->session->srp_username = BUF_strdup(s->srp_ctx.login);
if (s->session->srp_username == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto err;
}
}
#endif
#ifndef OPENSSL_NO_PSK
else if (alg_k & SSL_kPSK) {
char identity[PSK_MAX_IDENTITY_LEN + 2];
size_t identity_len;
unsigned char *t = NULL;
unsigned int psk_len = 0;
int psk_err = 1;
n = 0;
if (s->psk_client_callback == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_PSK_NO_CLIENT_CB);
goto err;
}
memset(identity, 0, sizeof(identity));
pmslen = PSK_MAX_PSK_LEN * 2 + 4;
pms = OPENSSL_malloc(pmslen);
if (!pms)
goto memerr;
psk_len = s->psk_client_callback(s, s->ctx->psk_identity_hint,
identity, sizeof(identity) - 1,
pms, pmslen);
if (psk_len > PSK_MAX_PSK_LEN) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto psk_err;
} else if (psk_len == 0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
SSL_R_PSK_IDENTITY_NOT_FOUND);
goto psk_err;
}
pmslen = 2 + psk_len + 2 + psk_len;
identity[PSK_MAX_IDENTITY_LEN + 1] = '\0';
identity_len = strlen(identity);
if (identity_len > PSK_MAX_IDENTITY_LEN) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto psk_err;
}
t = pms;
memmove(pms + psk_len + 4, pms, psk_len);
s2n(psk_len, t);
memset(t, 0, psk_len);
t += psk_len;
s2n(psk_len, t);
OPENSSL_free(s->session->psk_identity_hint);
s->session->psk_identity_hint =
BUF_strdup(s->ctx->psk_identity_hint);
if (s->ctx->psk_identity_hint != NULL
&& s->session->psk_identity_hint == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto psk_err;
}
OPENSSL_free(s->session->psk_identity);
s->session->psk_identity = BUF_strdup(identity);
if (s->session->psk_identity == NULL) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_MALLOC_FAILURE);
goto psk_err;
}
s2n(identity_len, p);
memcpy(p, identity, identity_len);
n = 2 + identity_len;
psk_err = 0;
psk_err:
OPENSSL_cleanse(identity, sizeof(identity));
if (psk_err != 0) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
goto err;
}
}
#endif
else {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
if (!ssl_set_handshake_header(s, SSL3_MT_CLIENT_KEY_EXCHANGE, n)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
s->state = SSL3_ST_CW_KEY_EXCH_B;
}
n = ssl_do_write(s);
#ifndef OPENSSL_NO_SRP
if (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kSRP) {
if (n > 0) {
if ((s->session->master_key_length =
SRP_generate_client_master_secret(s,
s->session->master_key)) <
0) {
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
}
} else
#endif
if (n <= 0) {
s->s3->tmp.pms = pms;
s->s3->tmp.pmslen = pmslen;
} else {
if (pms == NULL) {
pms = s->s3->tmp.pms;
pmslen = s->s3->tmp.pmslen;
}
if (pms == NULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
goto err;
}
s->session->master_key_length =
s->method->ssl3_enc->generate_master_secret(s,
s->
session->master_key,
pms, pmslen);
OPENSSL_clear_free(pms, pmslen);
s->s3->tmp.pms = NULL;
if (s->session->master_key_length < 0) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
}
return n;
memerr:
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
err:
OPENSSL_clear_free(pms, pmslen);
s->s3->tmp.pms = NULL;
#ifndef OPENSSL_NO_EC
BN_CTX_free(bn_ctx);
OPENSSL_free(encodedPoint);
EC_KEY_free(clnt_ecdh);
EVP_PKEY_free(srvr_pub_pkey);
#endif
s->state = SSL_ST_ERR;
return (-1);
} | 367,606 |
0 | int ssl3_get_certificate_request(SSL *s)
{
int ok, ret = 0;
unsigned long n, nc, l;
unsigned int llen, ctype_num, i;
X509_NAME *xn = NULL;
const unsigned char *p, *q;
unsigned char *d;
STACK_OF(X509_NAME) *ca_sk = NULL;
n = s->method->ssl_get_message(s,
SSL3_ST_CR_CERT_REQ_A,
SSL3_ST_CR_CERT_REQ_B,
-1, s->max_cert_list, &ok);
if (!ok)
return ((int)n);
s->s3->tmp.cert_req = 0;
if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE) {
s->s3->tmp.reuse_message = 1;
/*
* If we get here we don't need any cached handshake records as we
* wont be doing client auth.
*/
if (s->s3->handshake_buffer) {
if (!ssl3_digest_cached_records(s))
goto err;
}
return (1);
}
if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_UNEXPECTED_MESSAGE);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, SSL_R_WRONG_MESSAGE_TYPE);
goto err;
}
/* TLS does not like anon-DH with client cert */
if (s->version > SSL3_VERSION) {
if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_UNEXPECTED_MESSAGE);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,
SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
goto err;
}
}
p = d = (unsigned char *)s->init_msg;
if ((ca_sk = sk_X509_NAME_new(ca_dn_cmp)) == NULL) {
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
goto err;
}
/* get the certificate types */
ctype_num = *(p++);
OPENSSL_free(s->cert->ctypes);
s->cert->ctypes = NULL;
if (ctype_num > SSL3_CT_NUMBER) {
/* If we exceed static buffer copy all to cert structure */
s->cert->ctypes = OPENSSL_malloc(ctype_num);
if (s->cert->ctypes == NULL) {
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
goto err;
}
memcpy(s->cert->ctypes, p, ctype_num);
s->cert->ctype_num = (size_t)ctype_num;
ctype_num = SSL3_CT_NUMBER;
}
for (i = 0; i < ctype_num; i++)
s->s3->tmp.ctype[i] = p[i];
p += p[-1];
if (SSL_USE_SIGALGS(s)) {
n2s(p, llen);
/*
* Check we have enough room for signature algorithms and following
* length value.
*/
if ((unsigned long)(p - d + llen + 2) > n) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,
SSL_R_DATA_LENGTH_TOO_LONG);
goto err;
}
/* Clear certificate digests and validity flags */
for (i = 0; i < SSL_PKEY_NUM; i++) {
s->s3->tmp.md[i] = NULL;
s->s3->tmp.valid_flags[i] = 0;
}
if ((llen & 1) || !tls1_save_sigalgs(s, p, llen)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,
SSL_R_SIGNATURE_ALGORITHMS_ERROR);
goto err;
}
if (!tls1_process_sigalgs(s)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
goto err;
}
p += llen;
}
/* get the CA RDNs */
n2s(p, llen);
if ((unsigned long)(p - d + llen) != n) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, SSL_R_LENGTH_MISMATCH);
goto err;
}
for (nc = 0; nc < llen;) {
n2s(p, l);
if ((l + nc + 2) > llen) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, SSL_R_CA_DN_TOO_LONG);
goto err;
}
q = p;
if ((xn = d2i_X509_NAME(NULL, &q, l)) == NULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, ERR_R_ASN1_LIB);
goto err;
}
if (q != (p + l)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,
SSL_R_CA_DN_LENGTH_MISMATCH);
goto err;
}
if (!sk_X509_NAME_push(ca_sk, xn)) {
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
goto err;
}
p += l;
nc += l + 2;
}
/* we should setup a certificate to return.... */
s->s3->tmp.cert_req = 1;
s->s3->tmp.ctype_num = ctype_num;
sk_X509_NAME_pop_free(s->s3->tmp.ca_names, X509_NAME_free);
s->s3->tmp.ca_names = ca_sk;
ca_sk = NULL;
ret = 1;
goto done;
err:
s->state = SSL_ST_ERR;
done:
sk_X509_NAME_pop_free(ca_sk, X509_NAME_free);
return (ret);
} | int ssl3_get_certificate_request(SSL *s)
{
int ok, ret = 0;
unsigned long n, nc, l;
unsigned int llen, ctype_num, i;
X509_NAME *xn = NULL;
const unsigned char *p, *q;
unsigned char *d;
STACK_OF(X509_NAME) *ca_sk = NULL;
n = s->method->ssl_get_message(s,
SSL3_ST_CR_CERT_REQ_A,
SSL3_ST_CR_CERT_REQ_B,
-1, s->max_cert_list, &ok);
if (!ok)
return ((int)n);
s->s3->tmp.cert_req = 0;
if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE) {
s->s3->tmp.reuse_message = 1;
if (s->s3->handshake_buffer) {
if (!ssl3_digest_cached_records(s))
goto err;
}
return (1);
}
if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_UNEXPECTED_MESSAGE);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, SSL_R_WRONG_MESSAGE_TYPE);
goto err;
}
if (s->version > SSL3_VERSION) {
if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_UNEXPECTED_MESSAGE);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,
SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER);
goto err;
}
}
p = d = (unsigned char *)s->init_msg;
if ((ca_sk = sk_X509_NAME_new(ca_dn_cmp)) == NULL) {
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
goto err;
}
ctype_num = *(p++);
OPENSSL_free(s->cert->ctypes);
s->cert->ctypes = NULL;
if (ctype_num > SSL3_CT_NUMBER) {
s->cert->ctypes = OPENSSL_malloc(ctype_num);
if (s->cert->ctypes == NULL) {
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
goto err;
}
memcpy(s->cert->ctypes, p, ctype_num);
s->cert->ctype_num = (size_t)ctype_num;
ctype_num = SSL3_CT_NUMBER;
}
for (i = 0; i < ctype_num; i++)
s->s3->tmp.ctype[i] = p[i];
p += p[-1];
if (SSL_USE_SIGALGS(s)) {
n2s(p, llen);
if ((unsigned long)(p - d + llen + 2) > n) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,
SSL_R_DATA_LENGTH_TOO_LONG);
goto err;
}
for (i = 0; i < SSL_PKEY_NUM; i++) {
s->s3->tmp.md[i] = NULL;
s->s3->tmp.valid_flags[i] = 0;
}
if ((llen & 1) || !tls1_save_sigalgs(s, p, llen)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,
SSL_R_SIGNATURE_ALGORITHMS_ERROR);
goto err;
}
if (!tls1_process_sigalgs(s)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
goto err;
}
p += llen;
}
n2s(p, llen);
if ((unsigned long)(p - d + llen) != n) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, SSL_R_LENGTH_MISMATCH);
goto err;
}
for (nc = 0; nc < llen;) {
n2s(p, l);
if ((l + nc + 2) > llen) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, SSL_R_CA_DN_TOO_LONG);
goto err;
}
q = p;
if ((xn = d2i_X509_NAME(NULL, &q, l)) == NULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, ERR_R_ASN1_LIB);
goto err;
}
if (q != (p + l)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,
SSL_R_CA_DN_LENGTH_MISMATCH);
goto err;
}
if (!sk_X509_NAME_push(ca_sk, xn)) {
SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
goto err;
}
p += l;
nc += l + 2;
}
s->s3->tmp.cert_req = 1;
s->s3->tmp.ctype_num = ctype_num;
sk_X509_NAME_pop_free(s->s3->tmp.ca_names, X509_NAME_free);
s->s3->tmp.ca_names = ca_sk;
ca_sk = NULL;
ret = 1;
goto done;
err:
s->state = SSL_ST_ERR;
done:
sk_X509_NAME_pop_free(ca_sk, X509_NAME_free);
return (ret);
} | 367,607 |
0 | int ssl3_client_hello(SSL *s)
{
unsigned char *buf;
unsigned char *p, *d;
int i;
unsigned long l;
int al = 0;
#ifndef OPENSSL_NO_COMP
int j;
SSL_COMP *comp;
#endif
buf = (unsigned char *)s->init_buf->data;
if (s->state == SSL3_ST_CW_CLNT_HELLO_A) {
SSL_SESSION *sess = s->session;
/* Work out what SSL/TLS/DTLS version to use */
if (ssl_set_version(s) == 0)
goto err;
if ((sess == NULL) || (sess->ssl_version != s->version) ||
/*
* In the case of EAP-FAST, we can have a pre-shared
* "ticket" without a session ID.
*/
(!sess->session_id_length && !sess->tlsext_tick) ||
(sess->not_resumable)) {
if (!ssl_get_new_session(s, 0))
goto err;
}
/* else use the pre-loaded session */
p = s->s3->client_random;
/*
* for DTLS if client_random is initialized, reuse it, we are
* required to use same upon reply to HelloVerify
*/
if (SSL_IS_DTLS(s)) {
size_t idx;
i = 1;
for (idx = 0; idx < sizeof(s->s3->client_random); idx++) {
if (p[idx]) {
i = 0;
break;
}
}
} else
i = 1;
if (i && ssl_fill_hello_random(s, 0, p,
sizeof(s->s3->client_random)) <= 0)
goto err;
/* Do the message type and length last */
d = p = ssl_handshake_start(s);
/*-
* version indicates the negotiated version: for example from
* an SSLv2/v3 compatible client hello). The client_version
* field is the maximum version we permit and it is also
* used in RSA encrypted premaster secrets. Some servers can
* choke if we initially report a higher version then
* renegotiate to a lower one in the premaster secret. This
* didn't happen with TLS 1.0 as most servers supported it
* but it can with TLS 1.1 or later if the server only supports
* 1.0.
*
* Possible scenario with previous logic:
* 1. Client hello indicates TLS 1.2
* 2. Server hello says TLS 1.0
* 3. RSA encrypted premaster secret uses 1.2.
* 4. Handhaked proceeds using TLS 1.0.
* 5. Server sends hello request to renegotiate.
* 6. Client hello indicates TLS v1.0 as we now
* know that is maximum server supports.
* 7. Server chokes on RSA encrypted premaster secret
* containing version 1.0.
*
* For interoperability it should be OK to always use the
* maximum version we support in client hello and then rely
* on the checking of version to ensure the servers isn't
* being inconsistent: for example initially negotiating with
* TLS 1.0 and renegotiating with TLS 1.2. We do this by using
* client_version in client hello and not resetting it to
* the negotiated version.
*/
*(p++) = s->client_version >> 8;
*(p++) = s->client_version & 0xff;
/* Random stuff */
memcpy(p, s->s3->client_random, SSL3_RANDOM_SIZE);
p += SSL3_RANDOM_SIZE;
/* Session ID */
if (s->new_session)
i = 0;
else
i = s->session->session_id_length;
*(p++) = i;
if (i != 0) {
if (i > (int)sizeof(s->session->session_id)) {
SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
goto err;
}
memcpy(p, s->session->session_id, i);
p += i;
}
/* cookie stuff for DTLS */
if (SSL_IS_DTLS(s)) {
if (s->d1->cookie_len > sizeof(s->d1->cookie)) {
SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
goto err;
}
*(p++) = s->d1->cookie_len;
memcpy(p, s->d1->cookie, s->d1->cookie_len);
p += s->d1->cookie_len;
}
/* Ciphers supported */
i = ssl_cipher_list_to_bytes(s, SSL_get_ciphers(s), &(p[2]), 0);
if (i == 0) {
SSLerr(SSL_F_SSL3_CLIENT_HELLO, SSL_R_NO_CIPHERS_AVAILABLE);
goto err;
}
#ifdef OPENSSL_MAX_TLS1_2_CIPHER_LENGTH
/*
* Some servers hang if client hello > 256 bytes as hack workaround
* chop number of supported ciphers to keep it well below this if we
* use TLS v1.2
*/
if (TLS1_get_version(s) >= TLS1_2_VERSION
&& i > OPENSSL_MAX_TLS1_2_CIPHER_LENGTH)
i = OPENSSL_MAX_TLS1_2_CIPHER_LENGTH & ~1;
#endif
s2n(i, p);
p += i;
/* COMPRESSION */
#ifdef OPENSSL_NO_COMP
*(p++) = 1;
#else
if (!ssl_allow_compression(s) || !s->ctx->comp_methods)
j = 0;
else
j = sk_SSL_COMP_num(s->ctx->comp_methods);
*(p++) = 1 + j;
for (i = 0; i < j; i++) {
comp = sk_SSL_COMP_value(s->ctx->comp_methods, i);
*(p++) = comp->id;
}
#endif
*(p++) = 0; /* Add the NULL method */
/* TLS extensions */
if (ssl_prepare_clienthello_tlsext(s) <= 0) {
SSLerr(SSL_F_SSL3_CLIENT_HELLO, SSL_R_CLIENTHELLO_TLSEXT);
goto err;
}
if ((p =
ssl_add_clienthello_tlsext(s, p, buf + SSL3_RT_MAX_PLAIN_LENGTH,
&al)) == NULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, al);
SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
goto err;
}
l = p - d;
if (!ssl_set_handshake_header(s, SSL3_MT_CLIENT_HELLO, l)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
goto err;
}
s->state = SSL3_ST_CW_CLNT_HELLO_B;
}
/* SSL3_ST_CW_CLNT_HELLO_B */
return ssl_do_write(s);
err:
s->state = SSL_ST_ERR;
return (-1);
} | int ssl3_client_hello(SSL *s)
{
unsigned char *buf;
unsigned char *p, *d;
int i;
unsigned long l;
int al = 0;
#ifndef OPENSSL_NO_COMP
int j;
SSL_COMP *comp;
#endif
buf = (unsigned char *)s->init_buf->data;
if (s->state == SSL3_ST_CW_CLNT_HELLO_A) {
SSL_SESSION *sess = s->session;
if (ssl_set_version(s) == 0)
goto err;
if ((sess == NULL) || (sess->ssl_version != s->version) ||
(!sess->session_id_length && !sess->tlsext_tick) ||
(sess->not_resumable)) {
if (!ssl_get_new_session(s, 0))
goto err;
}
p = s->s3->client_random;
if (SSL_IS_DTLS(s)) {
size_t idx;
i = 1;
for (idx = 0; idx < sizeof(s->s3->client_random); idx++) {
if (p[idx]) {
i = 0;
break;
}
}
} else
i = 1;
if (i && ssl_fill_hello_random(s, 0, p,
sizeof(s->s3->client_random)) <= 0)
goto err;
d = p = ssl_handshake_start(s);
*(p++) = s->client_version >> 8;
*(p++) = s->client_version & 0xff;
memcpy(p, s->s3->client_random, SSL3_RANDOM_SIZE);
p += SSL3_RANDOM_SIZE;
if (s->new_session)
i = 0;
else
i = s->session->session_id_length;
*(p++) = i;
if (i != 0) {
if (i > (int)sizeof(s->session->session_id)) {
SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
goto err;
}
memcpy(p, s->session->session_id, i);
p += i;
}
if (SSL_IS_DTLS(s)) {
if (s->d1->cookie_len > sizeof(s->d1->cookie)) {
SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
goto err;
}
*(p++) = s->d1->cookie_len;
memcpy(p, s->d1->cookie, s->d1->cookie_len);
p += s->d1->cookie_len;
}
i = ssl_cipher_list_to_bytes(s, SSL_get_ciphers(s), &(p[2]), 0);
if (i == 0) {
SSLerr(SSL_F_SSL3_CLIENT_HELLO, SSL_R_NO_CIPHERS_AVAILABLE);
goto err;
}
#ifdef OPENSSL_MAX_TLS1_2_CIPHER_LENGTH
if (TLS1_get_version(s) >= TLS1_2_VERSION
&& i > OPENSSL_MAX_TLS1_2_CIPHER_LENGTH)
i = OPENSSL_MAX_TLS1_2_CIPHER_LENGTH & ~1;
#endif
s2n(i, p);
p += i;
#ifdef OPENSSL_NO_COMP
*(p++) = 1;
#else
if (!ssl_allow_compression(s) || !s->ctx->comp_methods)
j = 0;
else
j = sk_SSL_COMP_num(s->ctx->comp_methods);
*(p++) = 1 + j;
for (i = 0; i < j; i++) {
comp = sk_SSL_COMP_value(s->ctx->comp_methods, i);
*(p++) = comp->id;
}
#endif
*(p++) = 0;
if (ssl_prepare_clienthello_tlsext(s) <= 0) {
SSLerr(SSL_F_SSL3_CLIENT_HELLO, SSL_R_CLIENTHELLO_TLSEXT);
goto err;
}
if ((p =
ssl_add_clienthello_tlsext(s, p, buf + SSL3_RT_MAX_PLAIN_LENGTH,
&al)) == NULL) {
ssl3_send_alert(s, SSL3_AL_FATAL, al);
SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
goto err;
}
l = p - d;
if (!ssl_set_handshake_header(s, SSL3_MT_CLIENT_HELLO, l)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
goto err;
}
s->state = SSL3_ST_CW_CLNT_HELLO_B;
}
return ssl_do_write(s);
err:
s->state = SSL_ST_ERR;
return (-1);
} | 367,608 |
0 | static int bio_zlib_new(BIO *bi)
{
BIO_ZLIB_CTX *ctx;
#ifdef ZLIB_SHARED
(void)COMP_zlib();
if (!zlib_loaded)
{
COMPerr(COMP_F_BIO_ZLIB_NEW, COMP_R_ZLIB_NOT_SUPPORTED);
return 0;
}
#endif
ctx = OPENSSL_malloc(sizeof(BIO_ZLIB_CTX));
if(!ctx)
{
COMPerr(COMP_F_BIO_ZLIB_NEW, ERR_R_MALLOC_FAILURE);
return 0;
}
ctx->ibuf = NULL;
ctx->obuf = NULL;
ctx->ibufsize = ZLIB_DEFAULT_BUFSIZE;
ctx->obufsize = ZLIB_DEFAULT_BUFSIZE;
ctx->zin.zalloc = Z_NULL;
ctx->zin.zfree = Z_NULL;
ctx->zin.next_in = NULL;
ctx->zin.avail_in = 0;
ctx->zin.next_out = NULL;
ctx->zin.avail_out = 0;
ctx->zout.zalloc = Z_NULL;
ctx->zout.zfree = Z_NULL;
ctx->zout.next_in = NULL;
ctx->zout.avail_in = 0;
ctx->zout.next_out = NULL;
ctx->zout.avail_out = 0;
ctx->odone = 0;
ctx->comp_level = Z_DEFAULT_COMPRESSION;
bi->init = 1;
bi->ptr = (char *)ctx;
bi->flags = 0;
return 1;
} | static int bio_zlib_new(BIO *bi)
{
BIO_ZLIB_CTX *ctx;
#ifdef ZLIB_SHARED
(void)COMP_zlib();
if (!zlib_loaded)
{
COMPerr(COMP_F_BIO_ZLIB_NEW, COMP_R_ZLIB_NOT_SUPPORTED);
return 0;
}
#endif
ctx = OPENSSL_malloc(sizeof(BIO_ZLIB_CTX));
if(!ctx)
{
COMPerr(COMP_F_BIO_ZLIB_NEW, ERR_R_MALLOC_FAILURE);
return 0;
}
ctx->ibuf = NULL;
ctx->obuf = NULL;
ctx->ibufsize = ZLIB_DEFAULT_BUFSIZE;
ctx->obufsize = ZLIB_DEFAULT_BUFSIZE;
ctx->zin.zalloc = Z_NULL;
ctx->zin.zfree = Z_NULL;
ctx->zin.next_in = NULL;
ctx->zin.avail_in = 0;
ctx->zin.next_out = NULL;
ctx->zin.avail_out = 0;
ctx->zout.zalloc = Z_NULL;
ctx->zout.zfree = Z_NULL;
ctx->zout.next_in = NULL;
ctx->zout.avail_in = 0;
ctx->zout.next_out = NULL;
ctx->zout.avail_out = 0;
ctx->odone = 0;
ctx->comp_level = Z_DEFAULT_COMPRESSION;
bi->init = 1;
bi->ptr = (char *)ctx;
bi->flags = 0;
return 1;
} | 367,609 |
0 | static int bio_zlib_write(BIO *b, const char *in, int inl)
{
BIO_ZLIB_CTX *ctx;
int ret;
z_stream *zout;
if(!in || !inl) return 0;
ctx = (BIO_ZLIB_CTX *)b->ptr;
if(ctx->odone) return 0;
zout = &ctx->zout;
BIO_clear_retry_flags(b);
if(!ctx->obuf)
{
ctx->obuf = OPENSSL_malloc(ctx->obufsize);
/* Need error here */
if(!ctx->obuf)
{
COMPerr(COMP_F_BIO_ZLIB_WRITE, ERR_R_MALLOC_FAILURE);
return 0;
}
ctx->optr = ctx->obuf;
ctx->ocount = 0;
deflateInit(zout, ctx->comp_level);
zout->next_out = ctx->obuf;
zout->avail_out = ctx->obufsize;
}
/* Obtain input data directly from supplied buffer */
zout->next_in = (void *)in;
zout->avail_in = inl;
for(;;)
{
/* If data in output buffer write it first */
while(ctx->ocount) {
ret = BIO_write(b->next_bio, ctx->optr, ctx->ocount);
if(ret <= 0)
{
/* Total data written */
int tot = inl - zout->avail_in;
BIO_copy_next_retry(b);
if(ret < 0) return (tot > 0) ? tot : ret;
return tot;
}
ctx->optr += ret;
ctx->ocount -= ret;
}
/* Have we consumed all supplied data? */
if(!zout->avail_in)
return inl;
/* Compress some more */
/* Reset buffer */
ctx->optr = ctx->obuf;
zout->next_out = ctx->obuf;
zout->avail_out = ctx->obufsize;
/* Compress some more */
ret = deflate(zout, 0);
if(ret != Z_OK)
{
COMPerr(COMP_F_BIO_ZLIB_WRITE,
COMP_R_ZLIB_DEFLATE_ERROR);
ERR_add_error_data(2, "zlib error:", zError(ret));
return 0;
}
ctx->ocount = ctx->obufsize - zout->avail_out;
}
} | static int bio_zlib_write(BIO *b, const char *in, int inl)
{
BIO_ZLIB_CTX *ctx;
int ret;
z_stream *zout;
if(!in || !inl) return 0;
ctx = (BIO_ZLIB_CTX *)b->ptr;
if(ctx->odone) return 0;
zout = &ctx->zout;
BIO_clear_retry_flags(b);
if(!ctx->obuf)
{
ctx->obuf = OPENSSL_malloc(ctx->obufsize);
if(!ctx->obuf)
{
COMPerr(COMP_F_BIO_ZLIB_WRITE, ERR_R_MALLOC_FAILURE);
return 0;
}
ctx->optr = ctx->obuf;
ctx->ocount = 0;
deflateInit(zout, ctx->comp_level);
zout->next_out = ctx->obuf;
zout->avail_out = ctx->obufsize;
}
zout->next_in = (void *)in;
zout->avail_in = inl;
for(;;)
{
while(ctx->ocount) {
ret = BIO_write(b->next_bio, ctx->optr, ctx->ocount);
if(ret <= 0)
{
int tot = inl - zout->avail_in;
BIO_copy_next_retry(b);
if(ret < 0) return (tot > 0) ? tot : ret;
return tot;
}
ctx->optr += ret;
ctx->ocount -= ret;
}
if(!zout->avail_in)
return inl;
ctx->optr = ctx->obuf;
zout->next_out = ctx->obuf;
zout->avail_out = ctx->obufsize;
ret = deflate(zout, 0);
if(ret != Z_OK)
{
COMPerr(COMP_F_BIO_ZLIB_WRITE,
COMP_R_ZLIB_DEFLATE_ERROR);
ERR_add_error_data(2, "zlib error:", zError(ret));
return 0;
}
ctx->ocount = ctx->obufsize - zout->avail_out;
}
} | 367,610 |
0 | static int bio_zlib_flush(BIO *b)
{
BIO_ZLIB_CTX *ctx;
int ret;
z_stream *zout;
ctx = (BIO_ZLIB_CTX *)b->ptr;
/* If no data written or already flush show success */
if(!ctx->obuf || (ctx->odone && !ctx->ocount)) return 1;
zout = &ctx->zout;
BIO_clear_retry_flags(b);
/* No more input data */
zout->next_in = NULL;
zout->avail_in = 0;
for(;;)
{
/* If data in output buffer write it first */
while(ctx->ocount)
{
ret = BIO_write(b->next_bio, ctx->optr, ctx->ocount);
if(ret <= 0)
{
BIO_copy_next_retry(b);
return ret;
}
ctx->optr += ret;
ctx->ocount -= ret;
}
if(ctx->odone) return 1;
/* Compress some more */
/* Reset buffer */
ctx->optr = ctx->obuf;
zout->next_out = ctx->obuf;
zout->avail_out = ctx->obufsize;
/* Compress some more */
ret = deflate(zout, Z_FINISH);
if(ret == Z_STREAM_END) ctx->odone = 1;
else if(ret != Z_OK)
{
COMPerr(COMP_F_BIO_ZLIB_FLUSH,
COMP_R_ZLIB_DEFLATE_ERROR);
ERR_add_error_data(2, "zlib error:", zError(ret));
return 0;
}
ctx->ocount = ctx->obufsize - zout->avail_out;
}
} | static int bio_zlib_flush(BIO *b)
{
BIO_ZLIB_CTX *ctx;
int ret;
z_stream *zout;
ctx = (BIO_ZLIB_CTX *)b->ptr;
if(!ctx->obuf || (ctx->odone && !ctx->ocount)) return 1;
zout = &ctx->zout;
BIO_clear_retry_flags(b);
zout->next_in = NULL;
zout->avail_in = 0;
for(;;)
{
while(ctx->ocount)
{
ret = BIO_write(b->next_bio, ctx->optr, ctx->ocount);
if(ret <= 0)
{
BIO_copy_next_retry(b);
return ret;
}
ctx->optr += ret;
ctx->ocount -= ret;
}
if(ctx->odone) return 1;
ctx->optr = ctx->obuf;
zout->next_out = ctx->obuf;
zout->avail_out = ctx->obufsize;
ret = deflate(zout, Z_FINISH);
if(ret == Z_STREAM_END) ctx->odone = 1;
else if(ret != Z_OK)
{
COMPerr(COMP_F_BIO_ZLIB_FLUSH,
COMP_R_ZLIB_DEFLATE_ERROR);
ERR_add_error_data(2, "zlib error:", zError(ret));
return 0;
}
ctx->ocount = ctx->obufsize - zout->avail_out;
}
} | 367,612 |
0 | static int zlib_stateful_compress_block(COMP_CTX *ctx, unsigned char *out,
unsigned int olen, unsigned char *in, unsigned int ilen)
{
int err = Z_OK;
struct zlib_state *state =
(struct zlib_state *)CRYPTO_get_ex_data(&ctx->ex_data,
zlib_stateful_ex_idx);
if (state == NULL)
return -1;
state->ostream.next_in = in;
state->ostream.avail_in = ilen;
state->ostream.next_out = out;
state->ostream.avail_out = olen;
if (ilen > 0)
err = deflate(&state->ostream, Z_SYNC_FLUSH);
if (err != Z_OK)
return -1;
#ifdef DEBUG_ZLIB
fprintf(stderr,"compress(%4d)->%4d %s\n",
ilen,olen - state->ostream.avail_out,
(ilen != olen - state->ostream.avail_out)?"zlib":"clear");
#endif
return olen - state->ostream.avail_out;
} | static int zlib_stateful_compress_block(COMP_CTX *ctx, unsigned char *out,
unsigned int olen, unsigned char *in, unsigned int ilen)
{
int err = Z_OK;
struct zlib_state *state =
(struct zlib_state *)CRYPTO_get_ex_data(&ctx->ex_data,
zlib_stateful_ex_idx);
if (state == NULL)
return -1;
state->ostream.next_in = in;
state->ostream.avail_in = ilen;
state->ostream.next_out = out;
state->ostream.avail_out = olen;
if (ilen > 0)
err = deflate(&state->ostream, Z_SYNC_FLUSH);
if (err != Z_OK)
return -1;
#ifdef DEBUG_ZLIB
fprintf(stderr,"compress(%4d)->%4d %s\n",
ilen,olen - state->ostream.avail_out,
(ilen != olen - state->ostream.avail_out)?"zlib":"clear");
#endif
return olen - state->ostream.avail_out;
} | 367,613 |
0 | static void zlib_stateful_finish(COMP_CTX *ctx)
{
struct zlib_state *state =
(struct zlib_state *)CRYPTO_get_ex_data(&ctx->ex_data,
zlib_stateful_ex_idx);
inflateEnd(&state->istream);
deflateEnd(&state->ostream);
OPENSSL_free(state);
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_COMP,ctx,&ctx->ex_data);
} | static void zlib_stateful_finish(COMP_CTX *ctx)
{
struct zlib_state *state =
(struct zlib_state *)CRYPTO_get_ex_data(&ctx->ex_data,
zlib_stateful_ex_idx);
inflateEnd(&state->istream);
deflateEnd(&state->ostream);
OPENSSL_free(state);
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_COMP,ctx,&ctx->ex_data);
} | 367,615 |
0 | static long bio_zlib_ctrl(BIO *b, int cmd, long num, void *ptr)
{
BIO_ZLIB_CTX *ctx;
int ret, *ip;
int ibs, obs;
if(!b->next_bio) return 0;
ctx = (BIO_ZLIB_CTX *)b->ptr;
switch (cmd)
{
case BIO_CTRL_RESET:
ctx->ocount = 0;
ctx->odone = 0;
ret = 1;
break;
case BIO_CTRL_FLUSH:
ret = bio_zlib_flush(b);
if (ret > 0)
ret = BIO_flush(b->next_bio);
break;
case BIO_C_SET_BUFF_SIZE:
ibs = -1;
obs = -1;
if (ptr != NULL)
{
ip = ptr;
if (*ip == 0)
ibs = (int) num;
else
obs = (int) num;
}
else
{
ibs = (int)num;
obs = ibs;
}
if (ibs != -1)
{
if (ctx->ibuf)
{
OPENSSL_free(ctx->ibuf);
ctx->ibuf = NULL;
}
ctx->ibufsize = ibs;
}
if (obs != -1)
{
if (ctx->obuf)
{
OPENSSL_free(ctx->obuf);
ctx->obuf = NULL;
}
ctx->obufsize = obs;
}
ret = 1;
break;
case BIO_C_DO_STATE_MACHINE:
BIO_clear_retry_flags(b);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
BIO_copy_next_retry(b);
break;
default:
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
}
return ret;
} | static long bio_zlib_ctrl(BIO *b, int cmd, long num, void *ptr)
{
BIO_ZLIB_CTX *ctx;
int ret, *ip;
int ibs, obs;
if(!b->next_bio) return 0;
ctx = (BIO_ZLIB_CTX *)b->ptr;
switch (cmd)
{
case BIO_CTRL_RESET:
ctx->ocount = 0;
ctx->odone = 0;
ret = 1;
break;
case BIO_CTRL_FLUSH:
ret = bio_zlib_flush(b);
if (ret > 0)
ret = BIO_flush(b->next_bio);
break;
case BIO_C_SET_BUFF_SIZE:
ibs = -1;
obs = -1;
if (ptr != NULL)
{
ip = ptr;
if (*ip == 0)
ibs = (int) num;
else
obs = (int) num;
}
else
{
ibs = (int)num;
obs = ibs;
}
if (ibs != -1)
{
if (ctx->ibuf)
{
OPENSSL_free(ctx->ibuf);
ctx->ibuf = NULL;
}
ctx->ibufsize = ibs;
}
if (obs != -1)
{
if (ctx->obuf)
{
OPENSSL_free(ctx->obuf);
ctx->obuf = NULL;
}
ctx->obufsize = obs;
}
ret = 1;
break;
case BIO_C_DO_STATE_MACHINE:
BIO_clear_retry_flags(b);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
BIO_copy_next_retry(b);
break;
default:
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
}
return ret;
} | 367,617 |
0 | static int zlib_stateful_expand_block(COMP_CTX *ctx, unsigned char *out,
unsigned int olen, unsigned char *in, unsigned int ilen)
{
int err = Z_OK;
struct zlib_state *state =
(struct zlib_state *)CRYPTO_get_ex_data(&ctx->ex_data,
zlib_stateful_ex_idx);
if (state == NULL)
return 0;
state->istream.next_in = in;
state->istream.avail_in = ilen;
state->istream.next_out = out;
state->istream.avail_out = olen;
if (ilen > 0)
err = inflate(&state->istream, Z_SYNC_FLUSH);
if (err != Z_OK)
return -1;
#ifdef DEBUG_ZLIB
fprintf(stderr,"expand(%4d)->%4d %s\n",
ilen,olen - state->istream.avail_out,
(ilen != olen - state->istream.avail_out)?"zlib":"clear");
#endif
return olen - state->istream.avail_out;
} | static int zlib_stateful_expand_block(COMP_CTX *ctx, unsigned char *out,
unsigned int olen, unsigned char *in, unsigned int ilen)
{
int err = Z_OK;
struct zlib_state *state =
(struct zlib_state *)CRYPTO_get_ex_data(&ctx->ex_data,
zlib_stateful_ex_idx);
if (state == NULL)
return 0;
state->istream.next_in = in;
state->istream.avail_in = ilen;
state->istream.next_out = out;
state->istream.avail_out = olen;
if (ilen > 0)
err = inflate(&state->istream, Z_SYNC_FLUSH);
if (err != Z_OK)
return -1;
#ifdef DEBUG_ZLIB
fprintf(stderr,"expand(%4d)->%4d %s\n",
ilen,olen - state->istream.avail_out,
(ilen != olen - state->istream.avail_out)?"zlib":"clear");
#endif
return olen - state->istream.avail_out;
} | 367,618 |
0 | static int bio_zlib_read(BIO *b, char *out, int outl)
{
BIO_ZLIB_CTX *ctx;
int ret;
z_stream *zin;
if(!out || !outl) return 0;
ctx = (BIO_ZLIB_CTX *)b->ptr;
zin = &ctx->zin;
BIO_clear_retry_flags(b);
if(!ctx->ibuf)
{
ctx->ibuf = OPENSSL_malloc(ctx->ibufsize);
if(!ctx->ibuf)
{
COMPerr(COMP_F_BIO_ZLIB_READ, ERR_R_MALLOC_FAILURE);
return 0;
}
inflateInit(zin);
zin->next_in = ctx->ibuf;
zin->avail_in = 0;
}
/* Copy output data directly to supplied buffer */
zin->next_out = (unsigned char *)out;
zin->avail_out = (unsigned int)outl;
for(;;)
{
/* Decompress while data available */
while(zin->avail_in)
{
ret = inflate(zin, 0);
if((ret != Z_OK) && (ret != Z_STREAM_END))
{
COMPerr(COMP_F_BIO_ZLIB_READ,
COMP_R_ZLIB_INFLATE_ERROR);
ERR_add_error_data(2, "zlib error:",
zError(ret));
return 0;
}
/* If EOF or we've read everything then return */
if((ret == Z_STREAM_END) || !zin->avail_out)
return outl - zin->avail_out;
}
/* No data in input buffer try to read some in,
* if an error then return the total data read.
*/
ret = BIO_read(b->next_bio, ctx->ibuf, ctx->ibufsize);
if(ret <= 0)
{
/* Total data read */
int tot = outl - zin->avail_out;
BIO_copy_next_retry(b);
if(ret < 0) return (tot > 0) ? tot : ret;
return tot;
}
zin->avail_in = ret;
zin->next_in = ctx->ibuf;
}
} | static int bio_zlib_read(BIO *b, char *out, int outl)
{
BIO_ZLIB_CTX *ctx;
int ret;
z_stream *zin;
if(!out || !outl) return 0;
ctx = (BIO_ZLIB_CTX *)b->ptr;
zin = &ctx->zin;
BIO_clear_retry_flags(b);
if(!ctx->ibuf)
{
ctx->ibuf = OPENSSL_malloc(ctx->ibufsize);
if(!ctx->ibuf)
{
COMPerr(COMP_F_BIO_ZLIB_READ, ERR_R_MALLOC_FAILURE);
return 0;
}
inflateInit(zin);
zin->next_in = ctx->ibuf;
zin->avail_in = 0;
}
zin->next_out = (unsigned char *)out;
zin->avail_out = (unsigned int)outl;
for(;;)
{
while(zin->avail_in)
{
ret = inflate(zin, 0);
if((ret != Z_OK) && (ret != Z_STREAM_END))
{
COMPerr(COMP_F_BIO_ZLIB_READ,
COMP_R_ZLIB_INFLATE_ERROR);
ERR_add_error_data(2, "zlib error:",
zError(ret));
return 0;
}
if((ret == Z_STREAM_END) || !zin->avail_out)
return outl - zin->avail_out;
}
ret = BIO_read(b->next_bio, ctx->ibuf, ctx->ibufsize);
if(ret <= 0)
{
int tot = outl - zin->avail_out;
BIO_copy_next_retry(b);
if(ret < 0) return (tot > 0) ? tot : ret;
return tot;
}
zin->avail_in = ret;
zin->next_in = ctx->ibuf;
}
} | 367,619 |
0 | static int zz_uncompress (Bytef *dest, uLongf *destLen, const Bytef *source,
uLong sourceLen)
{
z_stream stream;
int err;
stream.next_in = (Bytef*)source;
stream.avail_in = (uInt)sourceLen;
/* Check for source > 64K on 16-bit machine: */
if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
stream.next_out = dest;
stream.avail_out = (uInt)*destLen;
if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
stream.zalloc = (alloc_func)0;
stream.zfree = (free_func)0;
err = inflateInit_(&stream,
ZLIB_VERSION, sizeof(z_stream));
if (err != Z_OK) return err;
err = inflate(&stream, Z_FINISH);
if (err != Z_STREAM_END) {
inflateEnd(&stream);
return err;
}
*destLen = stream.total_out;
err = inflateEnd(&stream);
return err;
} | static int zz_uncompress (Bytef *dest, uLongf *destLen, const Bytef *source,
uLong sourceLen)
{
z_stream stream;
int err;
stream.next_in = (Bytef*)source;
stream.avail_in = (uInt)sourceLen;
if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
stream.next_out = dest;
stream.avail_out = (uInt)*destLen;
if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
stream.zalloc = (alloc_func)0;
stream.zfree = (free_func)0;
err = inflateInit_(&stream,
ZLIB_VERSION, sizeof(z_stream));
if (err != Z_OK) return err;
err = inflate(&stream, Z_FINISH);
if (err != Z_STREAM_END) {
inflateEnd(&stream);
return err;
}
*destLen = stream.total_out;
err = inflateEnd(&stream);
return err;
} | 367,620 |
0 | static void* zlib_zalloc(void* opaque, unsigned int no, unsigned int size)
{
void *p;
p=OPENSSL_malloc(no*size);
if (p)
memset(p, 0, no*size);
return p;
} | static void* zlib_zalloc(void* opaque, unsigned int no, unsigned int size)
{
void *p;
p=OPENSSL_malloc(no*size);
if (p)
memset(p, 0, no*size);
return p;
} | 367,621 |
0 | static long bio_zlib_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
{
if(!b->next_bio)
return 0;
return
BIO_callback_ctrl(b->next_bio, cmd, fp);
} | static long bio_zlib_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
{
if(!b->next_bio)
return 0;
return
BIO_callback_ctrl(b->next_bio, cmd, fp);
} | 367,623 |
0 | BIO_METHOD *BIO_f_zlib(void)
{
return &bio_meth_zlib;
} | BIO_METHOD *BIO_f_zlib(void)
{
return &bio_meth_zlib;
} | 367,624 |