id
int32 0
252k
| repo
stringlengths 7
55
| path
stringlengths 4
127
| func_name
stringlengths 1
88
| original_string
stringlengths 75
19.8k
| language
stringclasses 1
value | code
stringlengths 51
19.8k
| code_tokens
list | docstring
stringlengths 3
17.3k
| docstring_tokens
list | sha
stringlengths 40
40
| url
stringlengths 87
242
|
|---|---|---|---|---|---|---|---|---|---|---|---|
1,200 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_reg_from | def _read_para_reg_from(self, code, cbit, clen, *, desc, length, version):
"""Read HIP REG_FROM parameter.
Structure of HIP REG_FROM parameter [RFC 5770]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Port | Protocol | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 reg_from.type Parameter Type
1 15 reg_from.critical Critical Bit
2 16 reg_from.length Length of Contents
4 32 reg_from.port Port
6 48 reg_from.protocol Protocol
7 56 - Reserved
8 64 reg_from.ip Address (IPv6)
"""
if clen != 20:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_port = self._read_unpack(2)
_ptcl = self._read_unpack(1)
_resv = self._read_fileng(1)
_addr = self._read_fileng(16)
reg_from = dict(
type=desc,
critical=cbit,
length=clen,
port=_port,
protocol=TP_PROTO.get(_ptcl),
ip=ipaddress.ip_address(_addr),
)
return reg_from | python | def _read_para_reg_from(self, code, cbit, clen, *, desc, length, version):
if clen != 20:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_port = self._read_unpack(2)
_ptcl = self._read_unpack(1)
_resv = self._read_fileng(1)
_addr = self._read_fileng(16)
reg_from = dict(
type=desc,
critical=cbit,
length=clen,
port=_port,
protocol=TP_PROTO.get(_ptcl),
ip=ipaddress.ip_address(_addr),
)
return reg_from | [
"def",
"_read_para_reg_from",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"if",
"clen",
"!=",
"20",
":",
"raise",
"ProtocolError",
"(",
"f'HIPv{version}: [Parano {code}] invalid format'",
")",
"_port",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"_ptcl",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_resv",
"=",
"self",
".",
"_read_fileng",
"(",
"1",
")",
"_addr",
"=",
"self",
".",
"_read_fileng",
"(",
"16",
")",
"reg_from",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"port",
"=",
"_port",
",",
"protocol",
"=",
"TP_PROTO",
".",
"get",
"(",
"_ptcl",
")",
",",
"ip",
"=",
"ipaddress",
".",
"ip_address",
"(",
"_addr",
")",
",",
")",
"return",
"reg_from"
] | Read HIP REG_FROM parameter.
Structure of HIP REG_FROM parameter [RFC 5770]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Port | Protocol | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 reg_from.type Parameter Type
1 15 reg_from.critical Critical Bit
2 16 reg_from.length Length of Contents
4 32 reg_from.port Port
6 48 reg_from.protocol Protocol
7 56 - Reserved
8 64 reg_from.ip Address (IPv6) | [
"Read",
"HIP",
"REG_FROM",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L1477-L1521 |
1,201 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_echo_response_signed | def _read_para_echo_response_signed(self, code, cbit, clen, *, desc, length, version):
"""Read HIP ECHO_RESPONSE_SIGNED parameter.
Structure of HIP ECHO_RESPONSE_SIGNED parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Opaque data (variable length) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 echo_response_signed.type Parameter Type
1 15 echo_response_signed.critical Critical Bit
2 16 echo_response_signed.length Length of Contents
4 32 echo_response_signed.data Opaque Data
"""
_data = self._read_fileng(clen)
echo_response_signed = dict(
type=desc,
critical=cbit,
length=clen,
data=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return echo_response_signed | python | def _read_para_echo_response_signed(self, code, cbit, clen, *, desc, length, version):
_data = self._read_fileng(clen)
echo_response_signed = dict(
type=desc,
critical=cbit,
length=clen,
data=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return echo_response_signed | [
"def",
"_read_para_echo_response_signed",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"_data",
"=",
"self",
".",
"_read_fileng",
"(",
"clen",
")",
"echo_response_signed",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"data",
"=",
"_data",
",",
")",
"_plen",
"=",
"length",
"-",
"clen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"echo_response_signed"
] | Read HIP ECHO_RESPONSE_SIGNED parameter.
Structure of HIP ECHO_RESPONSE_SIGNED parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Opaque data (variable length) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 echo_response_signed.type Parameter Type
1 15 echo_response_signed.critical Critical Bit
2 16 echo_response_signed.length Length of Contents
4 32 echo_response_signed.data Opaque Data | [
"Read",
"HIP",
"ECHO_RESPONSE_SIGNED",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L1523-L1555 |
1,202 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_transport_format_list | def _read_para_transport_format_list(self, code, cbit, clen, *, desc, length, version):
"""Read HIP TRANSPORT_FORMAT_LIST parameter.
Structure of HIP TRANSPORT_FORMAT_LIST parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| TF type #1 | TF type #2 /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ TF type #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 transport_format_list.type Parameter Type
1 15 transport_format_list.critical Critical Bit
2 16 transport_format_list.length Length of Contents
4 32 transport_format_list.tf_type TF Type
............
? ? - Padding
"""
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_tfid = list()
for _ in range(clen // 2):
_tfid.append(self._read_unpack(2))
transport_format_list = dict(
type=desc,
critical=cbit,
length=clen,
tf_type=tuple(_tfid),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return transport_format_list | python | def _read_para_transport_format_list(self, code, cbit, clen, *, desc, length, version):
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_tfid = list()
for _ in range(clen // 2):
_tfid.append(self._read_unpack(2))
transport_format_list = dict(
type=desc,
critical=cbit,
length=clen,
tf_type=tuple(_tfid),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return transport_format_list | [
"def",
"_read_para_transport_format_list",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"if",
"clen",
"%",
"2",
"!=",
"0",
":",
"raise",
"ProtocolError",
"(",
"f'HIPv{version}: [Parano {code}] invalid format'",
")",
"_tfid",
"=",
"list",
"(",
")",
"for",
"_",
"in",
"range",
"(",
"clen",
"//",
"2",
")",
":",
"_tfid",
".",
"append",
"(",
"self",
".",
"_read_unpack",
"(",
"2",
")",
")",
"transport_format_list",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"tf_type",
"=",
"tuple",
"(",
"_tfid",
")",
",",
")",
"_plen",
"=",
"length",
"-",
"clen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"transport_format_list"
] | Read HIP TRANSPORT_FORMAT_LIST parameter.
Structure of HIP TRANSPORT_FORMAT_LIST parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| TF type #1 | TF type #2 /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ TF type #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 transport_format_list.type Parameter Type
1 15 transport_format_list.critical Critical Bit
2 16 transport_format_list.length Length of Contents
4 32 transport_format_list.tf_type TF Type
............
? ? - Padding | [
"Read",
"HIP",
"TRANSPORT_FORMAT_LIST",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L1557-L1598 |
1,203 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_esp_transform | def _read_para_esp_transform(self, code, cbit, clen, *, desc, length, version):
"""Read HIP ESP_TRANSFORM parameter.
Structure of HIP ESP_TRANSFORM parameter [RFC 7402]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved | Suite ID #1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Suite ID #2 | Suite ID #3 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Suite ID #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 esp_transform.type Parameter Type
1 15 esp_transform.critical Critical Bit
2 16 esp_transform.length Length of Contents
4 32 - Reserved
6 48 esp_transform.id Suite ID
............
? ? - Padding
"""
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_resv = self._read_fileng(2)
_stid = list()
for _ in range((clen - 2) // 2):
_stid.append(_ESP_SUITE_ID.get(self._read_unpack(2), 'Unassigned'))
esp_transform = dict(
type=desc,
critical=cbit,
length=clen,
id=tuple(_stid),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return esp_transform | python | def _read_para_esp_transform(self, code, cbit, clen, *, desc, length, version):
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_resv = self._read_fileng(2)
_stid = list()
for _ in range((clen - 2) // 2):
_stid.append(_ESP_SUITE_ID.get(self._read_unpack(2), 'Unassigned'))
esp_transform = dict(
type=desc,
critical=cbit,
length=clen,
id=tuple(_stid),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return esp_transform | [
"def",
"_read_para_esp_transform",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"if",
"clen",
"%",
"2",
"!=",
"0",
":",
"raise",
"ProtocolError",
"(",
"f'HIPv{version}: [Parano {code}] invalid format'",
")",
"_resv",
"=",
"self",
".",
"_read_fileng",
"(",
"2",
")",
"_stid",
"=",
"list",
"(",
")",
"for",
"_",
"in",
"range",
"(",
"(",
"clen",
"-",
"2",
")",
"//",
"2",
")",
":",
"_stid",
".",
"append",
"(",
"_ESP_SUITE_ID",
".",
"get",
"(",
"self",
".",
"_read_unpack",
"(",
"2",
")",
",",
"'Unassigned'",
")",
")",
"esp_transform",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"id",
"=",
"tuple",
"(",
"_stid",
")",
",",
")",
"_plen",
"=",
"length",
"-",
"clen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"esp_transform"
] | Read HIP ESP_TRANSFORM parameter.
Structure of HIP ESP_TRANSFORM parameter [RFC 7402]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved | Suite ID #1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Suite ID #2 | Suite ID #3 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Suite ID #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 esp_transform.type Parameter Type
1 15 esp_transform.critical Critical Bit
2 16 esp_transform.length Length of Contents
4 32 - Reserved
6 48 esp_transform.id Suite ID
............
? ? - Padding | [
"Read",
"HIP",
"ESP_TRANSFORM",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L1600-L1645 |
1,204 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_seq_data | def _read_para_seq_data(self, code, cbit, clen, *, desc, length, version):
"""Read HIP SEQ_DATA parameter.
Structure of HIP SEQ_DATA parameter [RFC 6078]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 seq_data.type Parameter Type
1 15 seq_data.critical Critical Bit
2 16 seq_data.length Length of Contents
4 32 seq_data.seq Sequence number
"""
if clen != 4:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_seqn = self._read_unpack(4)
seq_data = dict(
type=desc,
critical=cbit,
length=clen,
seq=_seqn,
)
return seq_data | python | def _read_para_seq_data(self, code, cbit, clen, *, desc, length, version):
if clen != 4:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_seqn = self._read_unpack(4)
seq_data = dict(
type=desc,
critical=cbit,
length=clen,
seq=_seqn,
)
return seq_data | [
"def",
"_read_para_seq_data",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"if",
"clen",
"!=",
"4",
":",
"raise",
"ProtocolError",
"(",
"f'HIPv{version}: [Parano {code}] invalid format'",
")",
"_seqn",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
")",
"seq_data",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"seq",
"=",
"_seqn",
",",
")",
"return",
"seq_data"
] | Read HIP SEQ_DATA parameter.
Structure of HIP SEQ_DATA parameter [RFC 6078]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 seq_data.type Parameter Type
1 15 seq_data.critical Critical Bit
2 16 seq_data.length Length of Contents
4 32 seq_data.seq Sequence number | [
"Read",
"HIP",
"SEQ_DATA",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L1647-L1678 |
1,205 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_route_dst | def _read_para_route_dst(self, code, cbit, clen, *, desc, length, version):
"""Read HIP ROUTE_DST parameter.
Structure of HIP ROUTE_DST parameter [RFC 6028]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Flags | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HIT #1 |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
. . .
. . .
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HIT #n |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 route_dst.type Parameter Type
1 15 route_dst.critical Critical Bit
2 16 route_dst.length Length of Contents
4 32 route_dst.flags Flags
4 32 route_dst.flags.symmetric SYMMETRIC [RFC 6028]
4 33 route_dst.flags.must_follow MUST_FOLLOW [RFC 6028]
6 48 - Reserved
8 64 route_dst.ip HIT
............
"""
if (clen - 4) % 16 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_flag = self._read_binary(2)
_resv = self._read_fileng(2)
_addr = list()
for _ in range((clen - 4) // 16):
_addr.append(ipaddress.ip_address(self._read_fileng(16)))
route_dst = dict(
type=desc,
critical=cbit,
length=clen,
flags=dict(
symmetric=True if int(_flag[0], base=2) else False,
must_follow=True if int(_flag[1], base=2) else False,
),
ip=tuple(_addr),
)
return route_dst | python | def _read_para_route_dst(self, code, cbit, clen, *, desc, length, version):
if (clen - 4) % 16 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_flag = self._read_binary(2)
_resv = self._read_fileng(2)
_addr = list()
for _ in range((clen - 4) // 16):
_addr.append(ipaddress.ip_address(self._read_fileng(16)))
route_dst = dict(
type=desc,
critical=cbit,
length=clen,
flags=dict(
symmetric=True if int(_flag[0], base=2) else False,
must_follow=True if int(_flag[1], base=2) else False,
),
ip=tuple(_addr),
)
return route_dst | [
"def",
"_read_para_route_dst",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"if",
"(",
"clen",
"-",
"4",
")",
"%",
"16",
"!=",
"0",
":",
"raise",
"ProtocolError",
"(",
"f'HIPv{version}: [Parano {code}] invalid format'",
")",
"_flag",
"=",
"self",
".",
"_read_binary",
"(",
"2",
")",
"_resv",
"=",
"self",
".",
"_read_fileng",
"(",
"2",
")",
"_addr",
"=",
"list",
"(",
")",
"for",
"_",
"in",
"range",
"(",
"(",
"clen",
"-",
"4",
")",
"//",
"16",
")",
":",
"_addr",
".",
"append",
"(",
"ipaddress",
".",
"ip_address",
"(",
"self",
".",
"_read_fileng",
"(",
"16",
")",
")",
")",
"route_dst",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"flags",
"=",
"dict",
"(",
"symmetric",
"=",
"True",
"if",
"int",
"(",
"_flag",
"[",
"0",
"]",
",",
"base",
"=",
"2",
")",
"else",
"False",
",",
"must_follow",
"=",
"True",
"if",
"int",
"(",
"_flag",
"[",
"1",
"]",
",",
"base",
"=",
"2",
")",
"else",
"False",
",",
")",
",",
"ip",
"=",
"tuple",
"(",
"_addr",
")",
",",
")",
"return",
"route_dst"
] | Read HIP ROUTE_DST parameter.
Structure of HIP ROUTE_DST parameter [RFC 6028]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Flags | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HIT #1 |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
. . .
. . .
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HIT #n |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 route_dst.type Parameter Type
1 15 route_dst.critical Critical Bit
2 16 route_dst.length Length of Contents
4 32 route_dst.flags Flags
4 32 route_dst.flags.symmetric SYMMETRIC [RFC 6028]
4 33 route_dst.flags.must_follow MUST_FOLLOW [RFC 6028]
6 48 - Reserved
8 64 route_dst.ip HIT
............ | [
"Read",
"HIP",
"ROUTE_DST",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L1838-L1895 |
1,206 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_hip_transport_mode | def _read_para_hip_transport_mode(self, code, cbit, clen, *, desc, length, version):
"""Read HIP HIP_TRANSPORT_MODE parameter.
Structure of HIP HIP_TRANSPORT_MODE parameter [RFC 6261]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Port | Mode ID #1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Mode ID #2 | Mode ID #3 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Mode ID #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_transport_mode.type Parameter Type
1 15 hip_transport_mode.critical Critical Bit
2 16 hip_transport_mode.length Length of Contents
4 32 hip_transport_mode.port Port
6 48 hip_transport_mode.id Mode ID
............
? ? - Padding
"""
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_port = self._read_unpack(2)
_mdid = list()
for _ in range((clen - 2) // 2):
_mdid.append(_TP_MODE_ID.get(self._read_unpack(2), 'Unassigned'))
hip_transport_mode = dict(
type=desc,
critical=cbit,
length=clen,
port=_port,
id=tuple(_mdid),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_transport_mode | python | def _read_para_hip_transport_mode(self, code, cbit, clen, *, desc, length, version):
if clen % 2 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_port = self._read_unpack(2)
_mdid = list()
for _ in range((clen - 2) // 2):
_mdid.append(_TP_MODE_ID.get(self._read_unpack(2), 'Unassigned'))
hip_transport_mode = dict(
type=desc,
critical=cbit,
length=clen,
port=_port,
id=tuple(_mdid),
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_transport_mode | [
"def",
"_read_para_hip_transport_mode",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"if",
"clen",
"%",
"2",
"!=",
"0",
":",
"raise",
"ProtocolError",
"(",
"f'HIPv{version}: [Parano {code}] invalid format'",
")",
"_port",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"_mdid",
"=",
"list",
"(",
")",
"for",
"_",
"in",
"range",
"(",
"(",
"clen",
"-",
"2",
")",
"//",
"2",
")",
":",
"_mdid",
".",
"append",
"(",
"_TP_MODE_ID",
".",
"get",
"(",
"self",
".",
"_read_unpack",
"(",
"2",
")",
",",
"'Unassigned'",
")",
")",
"hip_transport_mode",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"port",
"=",
"_port",
",",
"id",
"=",
"tuple",
"(",
"_mdid",
")",
",",
")",
"_plen",
"=",
"length",
"-",
"clen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"hip_transport_mode"
] | Read HIP HIP_TRANSPORT_MODE parameter.
Structure of HIP HIP_TRANSPORT_MODE parameter [RFC 6261]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Port | Mode ID #1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Mode ID #2 | Mode ID #3 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Mode ID #n | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_transport_mode.type Parameter Type
1 15 hip_transport_mode.critical Critical Bit
2 16 hip_transport_mode.length Length of Contents
4 32 hip_transport_mode.port Port
6 48 hip_transport_mode.id Mode ID
............
? ? - Padding | [
"Read",
"HIP",
"HIP_TRANSPORT_MODE",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L1897-L1943 |
1,207 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_hip_mac | def _read_para_hip_mac(self, code, cbit, clen, *, desc, length, version):
"""Read HIP HIP_MAC parameter.
Structure of HIP HIP_MAC parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_mac.type Parameter Type
1 15 hip_mac.critical Critical Bit
2 16 hip_mac.length Length of Contents
4 32 hip_mac.hmac HMAC
? ? - Padding
"""
_hmac = self._read_fileng(clen)
hip_mac = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_mac | python | def _read_para_hip_mac(self, code, cbit, clen, *, desc, length, version):
_hmac = self._read_fileng(clen)
hip_mac = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_mac | [
"def",
"_read_para_hip_mac",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"_hmac",
"=",
"self",
".",
"_read_fileng",
"(",
"clen",
")",
"hip_mac",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"hmac",
"=",
"_hmac",
",",
")",
"_plen",
"=",
"length",
"-",
"clen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"hip_mac"
] | Read HIP HIP_MAC parameter.
Structure of HIP HIP_MAC parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_mac.type Parameter Type
1 15 hip_mac.critical Critical Bit
2 16 hip_mac.length Length of Contents
4 32 hip_mac.hmac HMAC
? ? - Padding | [
"Read",
"HIP",
"HIP_MAC",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L1945-L1982 |
1,208 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_hip_mac_2 | def _read_para_hip_mac_2(self, code, cbit, clen, *, desc, length, version):
"""Read HIP HIP_MAC_2 parameter.
Structure of HIP HIP_MAC_2 parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_mac_2.type Parameter Type
1 15 hip_mac_2.critical Critical Bit
2 16 hip_mac_2.length Length of Contents
4 32 hip_mac_2.hmac HMAC
? ? - Padding
"""
_hmac = self._read_fileng(clen)
hip_mac_2 = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_mac_2 | python | def _read_para_hip_mac_2(self, code, cbit, clen, *, desc, length, version):
_hmac = self._read_fileng(clen)
hip_mac_2 = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_mac_2 | [
"def",
"_read_para_hip_mac_2",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"_hmac",
"=",
"self",
".",
"_read_fileng",
"(",
"clen",
")",
"hip_mac_2",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"hmac",
"=",
"_hmac",
",",
")",
"_plen",
"=",
"length",
"-",
"clen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"hip_mac_2"
] | Read HIP HIP_MAC_2 parameter.
Structure of HIP HIP_MAC_2 parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_mac_2.type Parameter Type
1 15 hip_mac_2.critical Critical Bit
2 16 hip_mac_2.length Length of Contents
4 32 hip_mac_2.hmac HMAC
? ? - Padding | [
"Read",
"HIP",
"HIP_MAC_2",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L1984-L2021 |
1,209 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_hip_signature_2 | def _read_para_hip_signature_2(self, code, cbit, clen, *, desc, length, version):
"""Read HIP HIP_SIGNATURE_2 parameter.
Structure of HIP HIP_SIGNATURE_2 parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SIG alg | Signature /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_signature_2.type Parameter Type
1 15 hip_signature_2.critical Critical Bit
2 16 hip_signature_2.length Length of Contents
4 32 hip_signature_2.algorithm SIG Algorithm
6 48 hip_signature_2.signature Signature
? ? - Padding
"""
_algo = self._read_unpack(2)
_sign = self._read_fileng(clen-2)
hip_signature_2 = dict(
type=desc,
critical=cbit,
length=clen,
algorithm=_HI_ALGORITHM.get(_algo, 'Unassigned'),
signature=_sign,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_signature_2 | python | def _read_para_hip_signature_2(self, code, cbit, clen, *, desc, length, version):
_algo = self._read_unpack(2)
_sign = self._read_fileng(clen-2)
hip_signature_2 = dict(
type=desc,
critical=cbit,
length=clen,
algorithm=_HI_ALGORITHM.get(_algo, 'Unassigned'),
signature=_sign,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return hip_signature_2 | [
"def",
"_read_para_hip_signature_2",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"_algo",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"_sign",
"=",
"self",
".",
"_read_fileng",
"(",
"clen",
"-",
"2",
")",
"hip_signature_2",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"algorithm",
"=",
"_HI_ALGORITHM",
".",
"get",
"(",
"_algo",
",",
"'Unassigned'",
")",
",",
"signature",
"=",
"_sign",
",",
")",
"_plen",
"=",
"length",
"-",
"clen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"hip_signature_2"
] | Read HIP HIP_SIGNATURE_2 parameter.
Structure of HIP HIP_SIGNATURE_2 parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SIG alg | Signature /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hip_signature_2.type Parameter Type
1 15 hip_signature_2.critical Critical Bit
2 16 hip_signature_2.length Length of Contents
4 32 hip_signature_2.algorithm SIG Algorithm
6 48 hip_signature_2.signature Signature
? ? - Padding | [
"Read",
"HIP",
"HIP_SIGNATURE_2",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L2023-L2061 |
1,210 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_echo_request_unsigned | def _read_para_echo_request_unsigned(self, code, cbit, clen, *, desc, length, version):
"""Read HIP ECHO_REQUEST_UNSIGNED parameter.
Structure of HIP ECHO_REQUEST_UNSIGNED parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Opaque data (variable length) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 echo_request_unsigned.type Parameter Type
1 15 echo_request_unsigned.critical Critical Bit
2 16 echo_request_unsigned.length Length of Contents
4 32 echo_request_unsigned.data Opaque Data
"""
_data = self._read_fileng(clen)
echo_request_unsigned = dict(
type=desc,
critical=cbit,
length=clen,
data=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return echo_request_unsigned | python | def _read_para_echo_request_unsigned(self, code, cbit, clen, *, desc, length, version):
_data = self._read_fileng(clen)
echo_request_unsigned = dict(
type=desc,
critical=cbit,
length=clen,
data=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return echo_request_unsigned | [
"def",
"_read_para_echo_request_unsigned",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"_data",
"=",
"self",
".",
"_read_fileng",
"(",
"clen",
")",
"echo_request_unsigned",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"data",
"=",
"_data",
",",
")",
"_plen",
"=",
"length",
"-",
"clen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"echo_request_unsigned"
] | Read HIP ECHO_REQUEST_UNSIGNED parameter.
Structure of HIP ECHO_REQUEST_UNSIGNED parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Opaque data (variable length) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 echo_request_unsigned.type Parameter Type
1 15 echo_request_unsigned.critical Critical Bit
2 16 echo_request_unsigned.length Length of Contents
4 32 echo_request_unsigned.data Opaque Data | [
"Read",
"HIP",
"ECHO_REQUEST_UNSIGNED",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L2103-L2135 |
1,211 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_echo_response_unsigned | def _read_para_echo_response_unsigned(self, code, cbit, clen, *, desc, length, version):
"""Read HIP ECHO_RESPONSE_UNSIGNED parameter.
Structure of HIP ECHO_RESPONSE_UNSIGNED parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Opaque data (variable length) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 echo_response_unsigned.type Parameter Type
1 15 echo_response_unsigned.critical Critical Bit
2 16 echo_response_unsigned.length Length of Contents
4 32 echo_response_unsigned.data Opaque Data
"""
_data = self._read_fileng(clen)
echo_response_unsigned = dict(
type=desc,
critical=cbit,
length=clen,
data=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return echo_response_unsigned | python | def _read_para_echo_response_unsigned(self, code, cbit, clen, *, desc, length, version):
_data = self._read_fileng(clen)
echo_response_unsigned = dict(
type=desc,
critical=cbit,
length=clen,
data=_data,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return echo_response_unsigned | [
"def",
"_read_para_echo_response_unsigned",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"_data",
"=",
"self",
".",
"_read_fileng",
"(",
"clen",
")",
"echo_response_unsigned",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"data",
"=",
"_data",
",",
")",
"_plen",
"=",
"length",
"-",
"clen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"echo_response_unsigned"
] | Read HIP ECHO_RESPONSE_UNSIGNED parameter.
Structure of HIP ECHO_RESPONSE_UNSIGNED parameter [RFC 7401]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Opaque data (variable length) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 echo_response_unsigned.type Parameter Type
1 15 echo_response_unsigned.critical Critical Bit
2 16 echo_response_unsigned.length Length of Contents
4 32 echo_response_unsigned.data Opaque Data | [
"Read",
"HIP",
"ECHO_RESPONSE_UNSIGNED",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L2137-L2169 |
1,212 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_overlay_ttl | def _read_para_overlay_ttl(self, code, cbit, clen, *, desc, length, version):
"""Read HIP OVERLAY_TTL parameter.
Structure of HIP OVERLAY_TTL parameter [RFC 6078]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| TTL | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 overlay_ttl.type Parameter Type
1 15 overlay_ttl.critical Critical Bit
2 16 overlay_ttl.length Length of Contents
4 32 overlay_ttl.ttl TTL
6 48 - Reserved
"""
if clen != 4:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_ttln = self._read_unpack(2)
overlay_ttl = dict(
type=desc,
critical=cbit,
length=clen,
ttl=_ttln,
)
return overlay_ttl | python | def _read_para_overlay_ttl(self, code, cbit, clen, *, desc, length, version):
if clen != 4:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_ttln = self._read_unpack(2)
overlay_ttl = dict(
type=desc,
critical=cbit,
length=clen,
ttl=_ttln,
)
return overlay_ttl | [
"def",
"_read_para_overlay_ttl",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"if",
"clen",
"!=",
"4",
":",
"raise",
"ProtocolError",
"(",
"f'HIPv{version}: [Parano {code}] invalid format'",
")",
"_ttln",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"overlay_ttl",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"ttl",
"=",
"_ttln",
",",
")",
"return",
"overlay_ttl"
] | Read HIP OVERLAY_TTL parameter.
Structure of HIP OVERLAY_TTL parameter [RFC 6078]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| TTL | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 overlay_ttl.type Parameter Type
1 15 overlay_ttl.critical Critical Bit
2 16 overlay_ttl.length Length of Contents
4 32 overlay_ttl.ttl TTL
6 48 - Reserved | [
"Read",
"HIP",
"OVERLAY_TTL",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L2263-L2295 |
1,213 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_from | def _read_para_from(self, code, cbit, clen, *, desc, length, version):
"""Read HIP FROM parameter.
Structure of HIP FROM parameter [RFC 8004]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 from.type Parameter Type
1 15 from.critical Critical Bit
2 16 from.length Length of Contents
4 32 from.ip Address
"""
if clen != 16:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_addr = self._read_fileng(16)
from_ = dict(
type=desc,
critical=cbit,
length=clen,
ip=ipaddress.ip_address(_addr),
)
return from_ | python | def _read_para_from(self, code, cbit, clen, *, desc, length, version):
if clen != 16:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_addr = self._read_fileng(16)
from_ = dict(
type=desc,
critical=cbit,
length=clen,
ip=ipaddress.ip_address(_addr),
)
return from_ | [
"def",
"_read_para_from",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"if",
"clen",
"!=",
"16",
":",
"raise",
"ProtocolError",
"(",
"f'HIPv{version}: [Parano {code}] invalid format'",
")",
"_addr",
"=",
"self",
".",
"_read_fileng",
"(",
"16",
")",
"from_",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"ip",
"=",
"ipaddress",
".",
"ip_address",
"(",
"_addr",
")",
",",
")",
"return",
"from_"
] | Read HIP FROM parameter.
Structure of HIP FROM parameter [RFC 8004]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 from.type Parameter Type
1 15 from.critical Critical Bit
2 16 from.length Length of Contents
4 32 from.ip Address | [
"Read",
"HIP",
"FROM",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L2356-L2390 |
1,214 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_rvs_hmac | def _read_para_rvs_hmac(self, code, cbit, clen, *, desc, length, version):
"""Read HIP RVS_HMAC parameter.
Structure of HIP RVS_HMAC parameter [RFC 8004]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 rvs_hmac.type Parameter Type
1 15 rvs_hmac.critical Critical Bit
2 16 rvs_hmac.length Length of Contents
4 32 rvs_hmac.hmac HMAC
? ? - Padding
"""
_hmac = self._read_fileng(clen)
rvs_hmac = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return rvs_hmac | python | def _read_para_rvs_hmac(self, code, cbit, clen, *, desc, length, version):
_hmac = self._read_fileng(clen)
rvs_hmac = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return rvs_hmac | [
"def",
"_read_para_rvs_hmac",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"_hmac",
"=",
"self",
".",
"_read_fileng",
"(",
"clen",
")",
"rvs_hmac",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"hmac",
"=",
"_hmac",
",",
")",
"_plen",
"=",
"length",
"-",
"clen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"rvs_hmac"
] | Read HIP RVS_HMAC parameter.
Structure of HIP RVS_HMAC parameter [RFC 8004]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 rvs_hmac.type Parameter Type
1 15 rvs_hmac.critical Critical Bit
2 16 rvs_hmac.length Length of Contents
4 32 rvs_hmac.hmac HMAC
? ? - Padding | [
"Read",
"HIP",
"RVS_HMAC",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L2392-L2427 |
1,215 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_via_rvs | def _read_para_via_rvs(self, code, cbit, clen, *, desc, length, version):
"""Read HIP VIA_RVS parameter.
Structure of HIP VIA_RVS parameter [RFC 6028]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
. . .
. . .
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 via_rvs.type Parameter Type
1 15 via_rvs.critical Critical Bit
2 16 via_rvs.length Length of Contents
4 32 via_rvs.ip Address
............
"""
if clen % 16 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_addr = list()
for _ in range(clen // 16):
_addr.append(ipaddress.ip_address(self._read_fileng(16)))
via_rvs = dict(
type=desc,
critical=cbit,
length=clen,
ip=tuple(_addr),
)
return via_rvs | python | def _read_para_via_rvs(self, code, cbit, clen, *, desc, length, version):
if clen % 16 != 0:
raise ProtocolError(f'HIPv{version}: [Parano {code}] invalid format')
_addr = list()
for _ in range(clen // 16):
_addr.append(ipaddress.ip_address(self._read_fileng(16)))
via_rvs = dict(
type=desc,
critical=cbit,
length=clen,
ip=tuple(_addr),
)
return via_rvs | [
"def",
"_read_para_via_rvs",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"if",
"clen",
"%",
"16",
"!=",
"0",
":",
"raise",
"ProtocolError",
"(",
"f'HIPv{version}: [Parano {code}] invalid format'",
")",
"_addr",
"=",
"list",
"(",
")",
"for",
"_",
"in",
"range",
"(",
"clen",
"//",
"16",
")",
":",
"_addr",
".",
"append",
"(",
"ipaddress",
".",
"ip_address",
"(",
"self",
".",
"_read_fileng",
"(",
"16",
")",
")",
")",
"via_rvs",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"ip",
"=",
"tuple",
"(",
"_addr",
")",
",",
")",
"return",
"via_rvs"
] | Read HIP VIA_RVS parameter.
Structure of HIP VIA_RVS parameter [RFC 6028]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
. . .
. . .
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| Address |
| |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 via_rvs.type Parameter Type
1 15 via_rvs.critical Critical Bit
2 16 via_rvs.length Length of Contents
4 32 via_rvs.ip Address
............ | [
"Read",
"HIP",
"VIA_RVS",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L2429-L2474 |
1,216 | JarryShaw/PyPCAPKit | src/protocols/internet/hip.py | HIP._read_para_relay_hmac | def _read_para_relay_hmac(self, code, cbit, clen, *, desc, length, version):
"""Read HIP RELAY_HMAC parameter.
Structure of HIP RELAY_HMAC parameter [RFC 5770]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 relay_hmac.type Parameter Type
1 15 relay_hmac.critical Critical Bit
2 16 relay_hmac.length Length of Contents
4 32 relay_hmac.hmac HMAC
? ? - Padding
"""
_hmac = self._read_fileng(clen)
relay_hmac = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return relay_hmac | python | def _read_para_relay_hmac(self, code, cbit, clen, *, desc, length, version):
_hmac = self._read_fileng(clen)
relay_hmac = dict(
type=desc,
critical=cbit,
length=clen,
hmac=_hmac,
)
_plen = length - clen
if _plen:
self._read_fileng(_plen)
return relay_hmac | [
"def",
"_read_para_relay_hmac",
"(",
"self",
",",
"code",
",",
"cbit",
",",
"clen",
",",
"*",
",",
"desc",
",",
"length",
",",
"version",
")",
":",
"_hmac",
"=",
"self",
".",
"_read_fileng",
"(",
"clen",
")",
"relay_hmac",
"=",
"dict",
"(",
"type",
"=",
"desc",
",",
"critical",
"=",
"cbit",
",",
"length",
"=",
"clen",
",",
"hmac",
"=",
"_hmac",
",",
")",
"_plen",
"=",
"length",
"-",
"clen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"relay_hmac"
] | Read HIP RELAY_HMAC parameter.
Structure of HIP RELAY_HMAC parameter [RFC 5770]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| HMAC |
/ /
/ +-------------------------------+
| | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 relay_hmac.type Parameter Type
1 15 relay_hmac.critical Critical Bit
2 16 relay_hmac.length Length of Contents
4 32 relay_hmac.hmac HMAC
? ? - Padding | [
"Read",
"HIP",
"RELAY_HMAC",
"parameter",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hip.py#L2476-L2511 |
1,217 | JarryShaw/PyPCAPKit | src/utilities/exceptions.py | stacklevel | def stacklevel():
"""Fetch current stack level."""
pcapkit = f'{os.path.sep}pcapkit{os.path.sep}'
tb = traceback.extract_stack()
for index, tbitem in enumerate(tb):
if pcapkit in tbitem[0]:
break
else:
index = len(tb)
return (index-1) | python | def stacklevel():
pcapkit = f'{os.path.sep}pcapkit{os.path.sep}'
tb = traceback.extract_stack()
for index, tbitem in enumerate(tb):
if pcapkit in tbitem[0]:
break
else:
index = len(tb)
return (index-1) | [
"def",
"stacklevel",
"(",
")",
":",
"pcapkit",
"=",
"f'{os.path.sep}pcapkit{os.path.sep}'",
"tb",
"=",
"traceback",
".",
"extract_stack",
"(",
")",
"for",
"index",
",",
"tbitem",
"in",
"enumerate",
"(",
"tb",
")",
":",
"if",
"pcapkit",
"in",
"tbitem",
"[",
"0",
"]",
":",
"break",
"else",
":",
"index",
"=",
"len",
"(",
"tb",
")",
"return",
"(",
"index",
"-",
"1",
")"
] | Fetch current stack level. | [
"Fetch",
"current",
"stack",
"level",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/utilities/exceptions.py#L46-L55 |
1,218 | JarryShaw/PyPCAPKit | src/utilities/decorators.py | seekset_ng | def seekset_ng(func):
"""Read file from start then set back to original."""
@functools.wraps(func)
def seekcur(file, *args, seekset=os.SEEK_SET, **kw):
# seek_cur = file.tell()
file.seek(seekset, os.SEEK_SET)
return_ = func(file, *args, seekset=seekset, **kw)
# file.seek(seek_cur, os.SEEK_SET)
return return_
return seekcur | python | def seekset_ng(func):
@functools.wraps(func)
def seekcur(file, *args, seekset=os.SEEK_SET, **kw):
# seek_cur = file.tell()
file.seek(seekset, os.SEEK_SET)
return_ = func(file, *args, seekset=seekset, **kw)
# file.seek(seek_cur, os.SEEK_SET)
return return_
return seekcur | [
"def",
"seekset_ng",
"(",
"func",
")",
":",
"@",
"functools",
".",
"wraps",
"(",
"func",
")",
"def",
"seekcur",
"(",
"file",
",",
"*",
"args",
",",
"seekset",
"=",
"os",
".",
"SEEK_SET",
",",
"*",
"*",
"kw",
")",
":",
"# seek_cur = file.tell()",
"file",
".",
"seek",
"(",
"seekset",
",",
"os",
".",
"SEEK_SET",
")",
"return_",
"=",
"func",
"(",
"file",
",",
"*",
"args",
",",
"seekset",
"=",
"seekset",
",",
"*",
"*",
"kw",
")",
"# file.seek(seek_cur, os.SEEK_SET)",
"return",
"return_",
"return",
"seekcur"
] | Read file from start then set back to original. | [
"Read",
"file",
"from",
"start",
"then",
"set",
"back",
"to",
"original",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/utilities/decorators.py#L33-L42 |
1,219 | JarryShaw/PyPCAPKit | src/utilities/decorators.py | beholder_ng | def beholder_ng(func):
"""Behold analysis procedure."""
@functools.wraps(func)
def behold(file, length, *args, **kwargs):
seek_cur = file.tell()
try:
return func(file, length, *args, **kwargs)
except Exception:
# from pcapkit.foundation.analysis import analyse
from pcapkit.protocols.raw import Raw
error = traceback.format_exc(limit=1).strip().split(os.linesep)[-1]
# error = traceback.format_exc()
file.seek(seek_cur, os.SEEK_SET)
# raw = Raw(file, length, error=str(error))
# return analyse(raw.info, raw.protochain, raw.alias)
next_ = Raw(file, length, error=error)
return next_
return behold | python | def beholder_ng(func):
@functools.wraps(func)
def behold(file, length, *args, **kwargs):
seek_cur = file.tell()
try:
return func(file, length, *args, **kwargs)
except Exception:
# from pcapkit.foundation.analysis import analyse
from pcapkit.protocols.raw import Raw
error = traceback.format_exc(limit=1).strip().split(os.linesep)[-1]
# error = traceback.format_exc()
file.seek(seek_cur, os.SEEK_SET)
# raw = Raw(file, length, error=str(error))
# return analyse(raw.info, raw.protochain, raw.alias)
next_ = Raw(file, length, error=error)
return next_
return behold | [
"def",
"beholder_ng",
"(",
"func",
")",
":",
"@",
"functools",
".",
"wraps",
"(",
"func",
")",
"def",
"behold",
"(",
"file",
",",
"length",
",",
"*",
"args",
",",
"*",
"*",
"kwargs",
")",
":",
"seek_cur",
"=",
"file",
".",
"tell",
"(",
")",
"try",
":",
"return",
"func",
"(",
"file",
",",
"length",
",",
"*",
"args",
",",
"*",
"*",
"kwargs",
")",
"except",
"Exception",
":",
"# from pcapkit.foundation.analysis import analyse",
"from",
"pcapkit",
".",
"protocols",
".",
"raw",
"import",
"Raw",
"error",
"=",
"traceback",
".",
"format_exc",
"(",
"limit",
"=",
"1",
")",
".",
"strip",
"(",
")",
".",
"split",
"(",
"os",
".",
"linesep",
")",
"[",
"-",
"1",
"]",
"# error = traceback.format_exc()",
"file",
".",
"seek",
"(",
"seek_cur",
",",
"os",
".",
"SEEK_SET",
")",
"# raw = Raw(file, length, error=str(error))",
"# return analyse(raw.info, raw.protochain, raw.alias)",
"next_",
"=",
"Raw",
"(",
"file",
",",
"length",
",",
"error",
"=",
"error",
")",
"return",
"next_",
"return",
"behold"
] | Behold analysis procedure. | [
"Behold",
"analysis",
"procedure",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/utilities/decorators.py#L63-L82 |
1,220 | JarryShaw/PyPCAPKit | src/protocols/link/l2tp.py | L2TP.read_l2tp | def read_l2tp(self, length):
"""Read Layer Two Tunnelling Protocol.
Structure of L2TP header [RFC 2661]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|T|L|x|x|S|x|O|P|x|x|x|x| Ver | Length (opt) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Tunnel ID | Session ID |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Ns (opt) | Nr (opt) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Offset Size (opt) | Offset pad... (opt)
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 l2tp.flags Flags and Version Info
0 0 l2tp.flags.type Type (0/1)
0 1 l2tp.flags.len Length
0 2 - Reserved (must be zero)
0 4 l2tp.flags.seq Sequence
0 5 - Reserved (must be zero)
0 6 l2tp.flags.offset Offset
0 7 l2tp.flags.prio Priority
1 8 - Reserved (must be zero)
1 12 l2tp.ver Version (2)
2 16 l2tp.length Length (optional by len)
4 32 l2tp.tunnelid Tunnel ID
6 48 l2tp.sessionid Session ID
8 64 l2tp.ns Sequence Number (optional by seq)
10 80 l2tp.nr Next Sequence Number (optional by seq)
12 96 l2tp.offset Offset Size (optional by offset)
"""
if length is None:
length = len(self)
_flag = self._read_binary(1)
_vers = self._read_fileng(1).hex()[1]
_hlen = self._read_unpack(2) if int(_flag[1]) else None
_tnnl = self._read_unpack(2)
_sssn = self._read_unpack(2)
_nseq = self._read_unpack(2) if int(_flag[4]) else None
_nrec = self._read_unpack(2) if int(_flag[4]) else None
_size = self._read_unpack(2) if int(_flag[6]) else 0
l2tp = dict(
flags=dict(
type='Control' if int(_flag[0]) else 'Data',
len=True if int(_flag[1]) else False,
seq=True if int(_flag[4]) else False,
offset=True if int(_flag[6]) else False,
prio=True if int(_flag[7]) else False,
),
ver=int(_vers, base=16),
length=_hlen,
tunnelid=_tnnl,
sessionid=_sssn,
ns=_nseq,
nr=_nrec,
offset=8*_size or None,
)
hdr_len = _hlen or (6 + 2*(int(_flag[1]) + 2*int(_flag[4]) + int(_flag[6])))
l2tp['hdr_len'] = hdr_len + _size * 8
# if _size:
# l2tp['padding'] = self._read_fileng(_size * 8)
length -= l2tp['hdr_len']
l2tp['packet'] = self._read_packet(header=l2tp['hdr_len'], payload=length)
return self._decode_next_layer(l2tp, length) | python | def read_l2tp(self, length):
if length is None:
length = len(self)
_flag = self._read_binary(1)
_vers = self._read_fileng(1).hex()[1]
_hlen = self._read_unpack(2) if int(_flag[1]) else None
_tnnl = self._read_unpack(2)
_sssn = self._read_unpack(2)
_nseq = self._read_unpack(2) if int(_flag[4]) else None
_nrec = self._read_unpack(2) if int(_flag[4]) else None
_size = self._read_unpack(2) if int(_flag[6]) else 0
l2tp = dict(
flags=dict(
type='Control' if int(_flag[0]) else 'Data',
len=True if int(_flag[1]) else False,
seq=True if int(_flag[4]) else False,
offset=True if int(_flag[6]) else False,
prio=True if int(_flag[7]) else False,
),
ver=int(_vers, base=16),
length=_hlen,
tunnelid=_tnnl,
sessionid=_sssn,
ns=_nseq,
nr=_nrec,
offset=8*_size or None,
)
hdr_len = _hlen or (6 + 2*(int(_flag[1]) + 2*int(_flag[4]) + int(_flag[6])))
l2tp['hdr_len'] = hdr_len + _size * 8
# if _size:
# l2tp['padding'] = self._read_fileng(_size * 8)
length -= l2tp['hdr_len']
l2tp['packet'] = self._read_packet(header=l2tp['hdr_len'], payload=length)
return self._decode_next_layer(l2tp, length) | [
"def",
"read_l2tp",
"(",
"self",
",",
"length",
")",
":",
"if",
"length",
"is",
"None",
":",
"length",
"=",
"len",
"(",
"self",
")",
"_flag",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"_vers",
"=",
"self",
".",
"_read_fileng",
"(",
"1",
")",
".",
"hex",
"(",
")",
"[",
"1",
"]",
"_hlen",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"if",
"int",
"(",
"_flag",
"[",
"1",
"]",
")",
"else",
"None",
"_tnnl",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"_sssn",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"_nseq",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"if",
"int",
"(",
"_flag",
"[",
"4",
"]",
")",
"else",
"None",
"_nrec",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"if",
"int",
"(",
"_flag",
"[",
"4",
"]",
")",
"else",
"None",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"if",
"int",
"(",
"_flag",
"[",
"6",
"]",
")",
"else",
"0",
"l2tp",
"=",
"dict",
"(",
"flags",
"=",
"dict",
"(",
"type",
"=",
"'Control'",
"if",
"int",
"(",
"_flag",
"[",
"0",
"]",
")",
"else",
"'Data'",
",",
"len",
"=",
"True",
"if",
"int",
"(",
"_flag",
"[",
"1",
"]",
")",
"else",
"False",
",",
"seq",
"=",
"True",
"if",
"int",
"(",
"_flag",
"[",
"4",
"]",
")",
"else",
"False",
",",
"offset",
"=",
"True",
"if",
"int",
"(",
"_flag",
"[",
"6",
"]",
")",
"else",
"False",
",",
"prio",
"=",
"True",
"if",
"int",
"(",
"_flag",
"[",
"7",
"]",
")",
"else",
"False",
",",
")",
",",
"ver",
"=",
"int",
"(",
"_vers",
",",
"base",
"=",
"16",
")",
",",
"length",
"=",
"_hlen",
",",
"tunnelid",
"=",
"_tnnl",
",",
"sessionid",
"=",
"_sssn",
",",
"ns",
"=",
"_nseq",
",",
"nr",
"=",
"_nrec",
",",
"offset",
"=",
"8",
"*",
"_size",
"or",
"None",
",",
")",
"hdr_len",
"=",
"_hlen",
"or",
"(",
"6",
"+",
"2",
"*",
"(",
"int",
"(",
"_flag",
"[",
"1",
"]",
")",
"+",
"2",
"*",
"int",
"(",
"_flag",
"[",
"4",
"]",
")",
"+",
"int",
"(",
"_flag",
"[",
"6",
"]",
")",
")",
")",
"l2tp",
"[",
"'hdr_len'",
"]",
"=",
"hdr_len",
"+",
"_size",
"*",
"8",
"# if _size:",
"# l2tp['padding'] = self._read_fileng(_size * 8)",
"length",
"-=",
"l2tp",
"[",
"'hdr_len'",
"]",
"l2tp",
"[",
"'packet'",
"]",
"=",
"self",
".",
"_read_packet",
"(",
"header",
"=",
"l2tp",
"[",
"'hdr_len'",
"]",
",",
"payload",
"=",
"length",
")",
"return",
"self",
".",
"_decode_next_layer",
"(",
"l2tp",
",",
"length",
")"
] | Read Layer Two Tunnelling Protocol.
Structure of L2TP header [RFC 2661]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|T|L|x|x|S|x|O|P|x|x|x|x| Ver | Length (opt) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Tunnel ID | Session ID |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Ns (opt) | Nr (opt) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Offset Size (opt) | Offset pad... (opt)
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 l2tp.flags Flags and Version Info
0 0 l2tp.flags.type Type (0/1)
0 1 l2tp.flags.len Length
0 2 - Reserved (must be zero)
0 4 l2tp.flags.seq Sequence
0 5 - Reserved (must be zero)
0 6 l2tp.flags.offset Offset
0 7 l2tp.flags.prio Priority
1 8 - Reserved (must be zero)
1 12 l2tp.ver Version (2)
2 16 l2tp.length Length (optional by len)
4 32 l2tp.tunnelid Tunnel ID
6 48 l2tp.sessionid Session ID
8 64 l2tp.ns Sequence Number (optional by seq)
10 80 l2tp.nr Next Sequence Number (optional by seq)
12 96 l2tp.offset Offset Size (optional by offset) | [
"Read",
"Layer",
"Two",
"Tunnelling",
"Protocol",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/link/l2tp.py#L84-L156 |
1,221 | JarryShaw/PyPCAPKit | src/protocols/link/vlan.py | VLAN.read_vlan | def read_vlan(self, length):
"""Read 802.1Q Customer VLAN Tag Type.
Structure of 802.1Q Customer VLAN Tag Type [RFC 7042]:
Octets Bits Name Description
1 0 vlan.tci Tag Control Information
1 0 vlan.tci.pcp Priority Code Point
1 3 vlan.tci.dei Drop Eligible Indicator
1 4 vlan.tci.vid VLAN Identifier
3 24 vlan.type Protocol (Internet Layer)
"""
if length is None:
length = len(self)
_tcif = self._read_binary(2)
_type = self._read_protos(2)
vlan = dict(
tci=dict(
pcp=_PCP.get(int(_tcif[:3], base=2)),
dei=True if _tcif[3] else False,
vid=int(_tcif[4:], base=2),
),
type=_type,
)
length -= 4
vlan['packet'] = self._read_packet(header=4, payload=length)
return self._decode_next_layer(vlan, _type, length) | python | def read_vlan(self, length):
if length is None:
length = len(self)
_tcif = self._read_binary(2)
_type = self._read_protos(2)
vlan = dict(
tci=dict(
pcp=_PCP.get(int(_tcif[:3], base=2)),
dei=True if _tcif[3] else False,
vid=int(_tcif[4:], base=2),
),
type=_type,
)
length -= 4
vlan['packet'] = self._read_packet(header=4, payload=length)
return self._decode_next_layer(vlan, _type, length) | [
"def",
"read_vlan",
"(",
"self",
",",
"length",
")",
":",
"if",
"length",
"is",
"None",
":",
"length",
"=",
"len",
"(",
"self",
")",
"_tcif",
"=",
"self",
".",
"_read_binary",
"(",
"2",
")",
"_type",
"=",
"self",
".",
"_read_protos",
"(",
"2",
")",
"vlan",
"=",
"dict",
"(",
"tci",
"=",
"dict",
"(",
"pcp",
"=",
"_PCP",
".",
"get",
"(",
"int",
"(",
"_tcif",
"[",
":",
"3",
"]",
",",
"base",
"=",
"2",
")",
")",
",",
"dei",
"=",
"True",
"if",
"_tcif",
"[",
"3",
"]",
"else",
"False",
",",
"vid",
"=",
"int",
"(",
"_tcif",
"[",
"4",
":",
"]",
",",
"base",
"=",
"2",
")",
",",
")",
",",
"type",
"=",
"_type",
",",
")",
"length",
"-=",
"4",
"vlan",
"[",
"'packet'",
"]",
"=",
"self",
".",
"_read_packet",
"(",
"header",
"=",
"4",
",",
"payload",
"=",
"length",
")",
"return",
"self",
".",
"_decode_next_layer",
"(",
"vlan",
",",
"_type",
",",
"length",
")"
] | Read 802.1Q Customer VLAN Tag Type.
Structure of 802.1Q Customer VLAN Tag Type [RFC 7042]:
Octets Bits Name Description
1 0 vlan.tci Tag Control Information
1 0 vlan.tci.pcp Priority Code Point
1 3 vlan.tci.dei Drop Eligible Indicator
1 4 vlan.tci.vid VLAN Identifier
3 24 vlan.type Protocol (Internet Layer) | [
"Read",
"802",
".",
"1Q",
"Customer",
"VLAN",
"Tag",
"Type",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/link/vlan.py#L83-L113 |
1,222 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_tcp_options | def _read_tcp_options(self, size):
"""Read TCP option list.
Positional arguments:
* size -- int, length of option list
Returns:
* tuple -- TCP option list
* dict -- extracted TCP option
"""
counter = 0 # length of read option list
optkind = list() # option kind list
options = dict() # dict of option data
while counter < size:
# get option kind
kind = self._read_unpack(1)
# fetch corresponding option tuple
opts = TCP_OPT.get(kind)
enum = OPT_TYPE.get(kind)
if opts is None:
len_ = size - counter
counter = size
optkind.append(enum)
options[enum.name] = self._read_fileng(len_)
break
# extract option
dscp = opts[1]
if opts[0]:
len_ = self._read_unpack(1)
byte = opts[2](len_)
if byte: # check option process mode
data = process_opt[opts[3]](self, byte, kind)
else: # permission options (length is 2)
data = dict(
kind=kind, # option kind
length=2, # option length
flag=True, # permission flag
)
else: # 1-bytes options
len_ = 1
data = dict(
kind=kind, # option kind
length=1, # option length
)
# record option data
counter += len_
if enum in optkind:
if isinstance(options[dscp], tuple):
options[dscp] += (Info(data),)
else:
options[dscp] = (Info(options[dscp]), Info(data))
else:
optkind.append(enum)
options[dscp] = data
# break when eol triggered
if not kind:
break
# get padding
if counter < size:
len_ = size - counter
options['padding'] = self._read_fileng(len_)
return tuple(optkind), options | python | def _read_tcp_options(self, size):
counter = 0 # length of read option list
optkind = list() # option kind list
options = dict() # dict of option data
while counter < size:
# get option kind
kind = self._read_unpack(1)
# fetch corresponding option tuple
opts = TCP_OPT.get(kind)
enum = OPT_TYPE.get(kind)
if opts is None:
len_ = size - counter
counter = size
optkind.append(enum)
options[enum.name] = self._read_fileng(len_)
break
# extract option
dscp = opts[1]
if opts[0]:
len_ = self._read_unpack(1)
byte = opts[2](len_)
if byte: # check option process mode
data = process_opt[opts[3]](self, byte, kind)
else: # permission options (length is 2)
data = dict(
kind=kind, # option kind
length=2, # option length
flag=True, # permission flag
)
else: # 1-bytes options
len_ = 1
data = dict(
kind=kind, # option kind
length=1, # option length
)
# record option data
counter += len_
if enum in optkind:
if isinstance(options[dscp], tuple):
options[dscp] += (Info(data),)
else:
options[dscp] = (Info(options[dscp]), Info(data))
else:
optkind.append(enum)
options[dscp] = data
# break when eol triggered
if not kind:
break
# get padding
if counter < size:
len_ = size - counter
options['padding'] = self._read_fileng(len_)
return tuple(optkind), options | [
"def",
"_read_tcp_options",
"(",
"self",
",",
"size",
")",
":",
"counter",
"=",
"0",
"# length of read option list",
"optkind",
"=",
"list",
"(",
")",
"# option kind list",
"options",
"=",
"dict",
"(",
")",
"# dict of option data",
"while",
"counter",
"<",
"size",
":",
"# get option kind",
"kind",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"# fetch corresponding option tuple",
"opts",
"=",
"TCP_OPT",
".",
"get",
"(",
"kind",
")",
"enum",
"=",
"OPT_TYPE",
".",
"get",
"(",
"kind",
")",
"if",
"opts",
"is",
"None",
":",
"len_",
"=",
"size",
"-",
"counter",
"counter",
"=",
"size",
"optkind",
".",
"append",
"(",
"enum",
")",
"options",
"[",
"enum",
".",
"name",
"]",
"=",
"self",
".",
"_read_fileng",
"(",
"len_",
")",
"break",
"# extract option",
"dscp",
"=",
"opts",
"[",
"1",
"]",
"if",
"opts",
"[",
"0",
"]",
":",
"len_",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"byte",
"=",
"opts",
"[",
"2",
"]",
"(",
"len_",
")",
"if",
"byte",
":",
"# check option process mode",
"data",
"=",
"process_opt",
"[",
"opts",
"[",
"3",
"]",
"]",
"(",
"self",
",",
"byte",
",",
"kind",
")",
"else",
":",
"# permission options (length is 2)",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"# option kind",
"length",
"=",
"2",
",",
"# option length",
"flag",
"=",
"True",
",",
"# permission flag",
")",
"else",
":",
"# 1-bytes options",
"len_",
"=",
"1",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"# option kind",
"length",
"=",
"1",
",",
"# option length",
")",
"# record option data",
"counter",
"+=",
"len_",
"if",
"enum",
"in",
"optkind",
":",
"if",
"isinstance",
"(",
"options",
"[",
"dscp",
"]",
",",
"tuple",
")",
":",
"options",
"[",
"dscp",
"]",
"+=",
"(",
"Info",
"(",
"data",
")",
",",
")",
"else",
":",
"options",
"[",
"dscp",
"]",
"=",
"(",
"Info",
"(",
"options",
"[",
"dscp",
"]",
")",
",",
"Info",
"(",
"data",
")",
")",
"else",
":",
"optkind",
".",
"append",
"(",
"enum",
")",
"options",
"[",
"dscp",
"]",
"=",
"data",
"# break when eol triggered",
"if",
"not",
"kind",
":",
"break",
"# get padding",
"if",
"counter",
"<",
"size",
":",
"len_",
"=",
"size",
"-",
"counter",
"options",
"[",
"'padding'",
"]",
"=",
"self",
".",
"_read_fileng",
"(",
"len_",
")",
"return",
"tuple",
"(",
"optkind",
")",
",",
"options"
] | Read TCP option list.
Positional arguments:
* size -- int, length of option list
Returns:
* tuple -- TCP option list
* dict -- extracted TCP option | [
"Read",
"TCP",
"option",
"list",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L345-L414 |
1,223 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mode_tsopt | def _read_mode_tsopt(self, size, kind):
"""Read Timestamps option.
Positional arguments:
* size - int, length of option
* kind - int, 8 (Timestamps)
Returns:
* dict -- extracted Timestamps (TS) option
Structure of TCP TSopt [RFC 7323]:
+-------+-------+---------------------+---------------------+
|Kind=8 | 10 | TS Value (TSval) |TS Echo Reply (TSecr)|
+-------+-------+---------------------+---------------------+
1 1 4 4
Octets Bits Name Description
0 0 tcp.ts.kind Kind (8)
1 8 tcp.ts.length Length (10)
2 16 tcp.ts.val Timestamp Value
6 48 tcp.ts.ecr Timestamps Echo Reply
"""
temp = struct.unpack('>II', self._read_fileng(size))
data = dict(
kind=kind,
length=size,
val=temp[0],
ecr=temp[1],
)
return data | python | def _read_mode_tsopt(self, size, kind):
temp = struct.unpack('>II', self._read_fileng(size))
data = dict(
kind=kind,
length=size,
val=temp[0],
ecr=temp[1],
)
return data | [
"def",
"_read_mode_tsopt",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"temp",
"=",
"struct",
".",
"unpack",
"(",
"'>II'",
",",
"self",
".",
"_read_fileng",
"(",
"size",
")",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
",",
"val",
"=",
"temp",
"[",
"0",
"]",
",",
"ecr",
"=",
"temp",
"[",
"1",
"]",
",",
")",
"return",
"data"
] | Read Timestamps option.
Positional arguments:
* size - int, length of option
* kind - int, 8 (Timestamps)
Returns:
* dict -- extracted Timestamps (TS) option
Structure of TCP TSopt [RFC 7323]:
+-------+-------+---------------------+---------------------+
|Kind=8 | 10 | TS Value (TSval) |TS Echo Reply (TSecr)|
+-------+-------+---------------------+---------------------+
1 1 4 4
Octets Bits Name Description
0 0 tcp.ts.kind Kind (8)
1 8 tcp.ts.length Length (10)
2 16 tcp.ts.val Timestamp Value
6 48 tcp.ts.ecr Timestamps Echo Reply | [
"Read",
"Timestamps",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L464-L494 |
1,224 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mode_pocsp | def _read_mode_pocsp(self, size, kind):
"""Read Partial Order Connection Service Profile option.
Positional arguments:
* size - int, length of option
* kind - int, 10 (POC-Serv Profile)
Returns:
* dict -- extracted Partial Order Connection Service Profile (POC-SP) option
Structure of TCP POC-SP Option [RFC 1693][RFC 6247]:
1 bit 1 bit 6 bits
+----------+----------+------------+----------+--------+
| Kind=10 | Length=3 | Start_flag | End_flag | Filler |
+----------+----------+------------+----------+--------+
Octets Bits Name Description
0 0 tcp.pocsp.kind Kind (10)
1 8 tcp.pocsp.length Length (3)
2 16 tcp.pocsp.start Start Flag
2 17 tcp.pocsp.end End Flag
2 18 tcp.pocsp.filler Filler
"""
temp = self._read_binary(size)
data = dict(
kind=kind,
length=size,
start=True if int(temp[0]) else False,
end=True if int(temp[1]) else False,
filler=bytes(chr(int(temp[2:], base=2)), encoding='utf-8'),
)
return data | python | def _read_mode_pocsp(self, size, kind):
temp = self._read_binary(size)
data = dict(
kind=kind,
length=size,
start=True if int(temp[0]) else False,
end=True if int(temp[1]) else False,
filler=bytes(chr(int(temp[2:], base=2)), encoding='utf-8'),
)
return data | [
"def",
"_read_mode_pocsp",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"temp",
"=",
"self",
".",
"_read_binary",
"(",
"size",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
",",
"start",
"=",
"True",
"if",
"int",
"(",
"temp",
"[",
"0",
"]",
")",
"else",
"False",
",",
"end",
"=",
"True",
"if",
"int",
"(",
"temp",
"[",
"1",
"]",
")",
"else",
"False",
",",
"filler",
"=",
"bytes",
"(",
"chr",
"(",
"int",
"(",
"temp",
"[",
"2",
":",
"]",
",",
"base",
"=",
"2",
")",
")",
",",
"encoding",
"=",
"'utf-8'",
")",
",",
")",
"return",
"data"
] | Read Partial Order Connection Service Profile option.
Positional arguments:
* size - int, length of option
* kind - int, 10 (POC-Serv Profile)
Returns:
* dict -- extracted Partial Order Connection Service Profile (POC-SP) option
Structure of TCP POC-SP Option [RFC 1693][RFC 6247]:
1 bit 1 bit 6 bits
+----------+----------+------------+----------+--------+
| Kind=10 | Length=3 | Start_flag | End_flag | Filler |
+----------+----------+------------+----------+--------+
Octets Bits Name Description
0 0 tcp.pocsp.kind Kind (10)
1 8 tcp.pocsp.length Length (3)
2 16 tcp.pocsp.start Start Flag
2 17 tcp.pocsp.end End Flag
2 18 tcp.pocsp.filler Filler | [
"Read",
"Partial",
"Order",
"Connection",
"Service",
"Profile",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L496-L530 |
1,225 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mode_acopt | def _read_mode_acopt(self, size, kind):
"""Read Alternate Checksum Request option.
Positional arguments:
size - int, length of option
kind - int, 14 (Alt-Chksum Request)
Returns:
* dict -- extracted Alternate Checksum Request (CHKSUM-REQ) option
Structure of TCP CHKSUM-REQ [RFC 1146][RFC 6247]:
+----------+----------+----------+
| Kind=14 | Length=3 | chksum |
+----------+----------+----------+
Octets Bits Name Description
0 0 tcp.chksumreq.kind Kind (14)
1 8 tcp.chksumreq.length Length (3)
2 16 tcp.chksumreq.ac Checksum Algorithm
"""
temp = self._read_unpack(size)
algo = chksum_opt.get(temp)
data = dict(
kind=kind,
length=size,
ac=algo,
)
return data | python | def _read_mode_acopt(self, size, kind):
temp = self._read_unpack(size)
algo = chksum_opt.get(temp)
data = dict(
kind=kind,
length=size,
ac=algo,
)
return data | [
"def",
"_read_mode_acopt",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"temp",
"=",
"self",
".",
"_read_unpack",
"(",
"size",
")",
"algo",
"=",
"chksum_opt",
".",
"get",
"(",
"temp",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
",",
"ac",
"=",
"algo",
",",
")",
"return",
"data"
] | Read Alternate Checksum Request option.
Positional arguments:
size - int, length of option
kind - int, 14 (Alt-Chksum Request)
Returns:
* dict -- extracted Alternate Checksum Request (CHKSUM-REQ) option
Structure of TCP CHKSUM-REQ [RFC 1146][RFC 6247]:
+----------+----------+----------+
| Kind=14 | Length=3 | chksum |
+----------+----------+----------+
Octets Bits Name Description
0 0 tcp.chksumreq.kind Kind (14)
1 8 tcp.chksumreq.length Length (3)
2 16 tcp.chksumreq.ac Checksum Algorithm | [
"Read",
"Alternate",
"Checksum",
"Request",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L532-L562 |
1,226 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mode_qsopt | def _read_mode_qsopt(self, size, kind):
"""Read Quick-Start Response option.
Positional arguments:
* size - int, length of option
* kind - int, 27 (Quick-Start Response)
Returns:
* dict -- extracted Quick-Start Response (QS) option
Structure of TCP QSopt [RFC 4782]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Kind | Length=8 | Resv. | Rate | TTL Diff |
| | | |Request| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| QS Nonce | R |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 tcp.qs.kind Kind (27)
1 8 tcp.qs.length Length (8)
2 16 - Reserved (must be zero)
2 20 tcp.qs.req_rate Request Rate
3 24 tcp.qs.ttl_diff TTL Difference
4 32 tcp.qs.nounce QS Nounce
7 62 - Reserved (must be zero)
"""
rvrr = self._read_binary(1)
ttld = self._read_unpack(1)
noun = self._read_fileng(4)
data = dict(
kind=kind,
length=size,
req_rate=int(rvrr[4:], base=2),
ttl_diff=ttld,
nounce=noun[:-2],
)
return data | python | def _read_mode_qsopt(self, size, kind):
rvrr = self._read_binary(1)
ttld = self._read_unpack(1)
noun = self._read_fileng(4)
data = dict(
kind=kind,
length=size,
req_rate=int(rvrr[4:], base=2),
ttl_diff=ttld,
nounce=noun[:-2],
)
return data | [
"def",
"_read_mode_qsopt",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"rvrr",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"ttld",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"noun",
"=",
"self",
".",
"_read_fileng",
"(",
"4",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
",",
"req_rate",
"=",
"int",
"(",
"rvrr",
"[",
"4",
":",
"]",
",",
"base",
"=",
"2",
")",
",",
"ttl_diff",
"=",
"ttld",
",",
"nounce",
"=",
"noun",
"[",
":",
"-",
"2",
"]",
",",
")",
"return",
"data"
] | Read Quick-Start Response option.
Positional arguments:
* size - int, length of option
* kind - int, 27 (Quick-Start Response)
Returns:
* dict -- extracted Quick-Start Response (QS) option
Structure of TCP QSopt [RFC 4782]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Kind | Length=8 | Resv. | Rate | TTL Diff |
| | | |Request| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| QS Nonce | R |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 tcp.qs.kind Kind (27)
1 8 tcp.qs.length Length (8)
2 16 - Reserved (must be zero)
2 20 tcp.qs.req_rate Request Rate
3 24 tcp.qs.ttl_diff TTL Difference
4 32 tcp.qs.nounce QS Nounce
7 62 - Reserved (must be zero) | [
"Read",
"Quick",
"-",
"Start",
"Response",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L564-L606 |
1,227 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mode_utopt | def _read_mode_utopt(self, size, kind):
"""Read User Timeout option.
Positional arguments:
* size - int, length of option
* kind - int, 28 (User Timeout Option)
Returns:
* dict -- extracted User Timeout (TIMEOUT) option
Structure of TCP TIMEOUT [RFC 5482]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Kind = 28 | Length = 4 |G| User Timeout |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 tcp.timeout.kind Kind (28)
1 8 tcp.timeout.length Length (4)
2 16 tcp.timeout.granularity Granularity
2 17 tcp.timeout.timeout User Timeout
"""
temp = self._read_fileng(size)
data = dict(
kind=kind,
length=size,
granularity='minutes' if int(temp[0]) else 'seconds',
timeout=bytes(chr(int(temp[0:], base=2)), encoding='utf-8'),
)
return data | python | def _read_mode_utopt(self, size, kind):
temp = self._read_fileng(size)
data = dict(
kind=kind,
length=size,
granularity='minutes' if int(temp[0]) else 'seconds',
timeout=bytes(chr(int(temp[0:], base=2)), encoding='utf-8'),
)
return data | [
"def",
"_read_mode_utopt",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"temp",
"=",
"self",
".",
"_read_fileng",
"(",
"size",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
",",
"granularity",
"=",
"'minutes'",
"if",
"int",
"(",
"temp",
"[",
"0",
"]",
")",
"else",
"'seconds'",
",",
"timeout",
"=",
"bytes",
"(",
"chr",
"(",
"int",
"(",
"temp",
"[",
"0",
":",
"]",
",",
"base",
"=",
"2",
")",
")",
",",
"encoding",
"=",
"'utf-8'",
")",
",",
")",
"return",
"data"
] | Read User Timeout option.
Positional arguments:
* size - int, length of option
* kind - int, 28 (User Timeout Option)
Returns:
* dict -- extracted User Timeout (TIMEOUT) option
Structure of TCP TIMEOUT [RFC 5482]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Kind = 28 | Length = 4 |G| User Timeout |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 tcp.timeout.kind Kind (28)
1 8 tcp.timeout.length Length (4)
2 16 tcp.timeout.granularity Granularity
2 17 tcp.timeout.timeout User Timeout | [
"Read",
"User",
"Timeout",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L608-L641 |
1,228 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mode_tcpao | def _read_mode_tcpao(self, size, kind):
"""Read Authentication option.
Positional arguments:
* size - int, length of option
* kind - int, 29 (TCP Authentication Option)
Returns:
* dict -- extracted Authentication (AO) option
Structure of TCP AOopt [RFC 5925]:
+------------+------------+------------+------------+
| Kind=29 | Length | KeyID | RNextKeyID |
+------------+------------+------------+------------+
| MAC ...
+-----------------------------------...
...-----------------+
... MAC (con't) |
...-----------------+
Octets Bits Name Description
0 0 tcp.ao.kind Kind (29)
1 8 tcp.ao.length Length
2 16 tcp.ao.keyid KeyID
3 24 tcp.ao.rnextkeyid RNextKeyID
4 32 tcp.ao.mac Message Authentication Code
"""
key_ = self._read_unpack(1)
rkey = self._read_unpack(1)
mac_ = self._read_fileng(size - 2)
data = dict(
kind=kind,
length=size,
keyid=key_,
rnextkeyid=rkey,
mac=mac_,
)
return data | python | def _read_mode_tcpao(self, size, kind):
key_ = self._read_unpack(1)
rkey = self._read_unpack(1)
mac_ = self._read_fileng(size - 2)
data = dict(
kind=kind,
length=size,
keyid=key_,
rnextkeyid=rkey,
mac=mac_,
)
return data | [
"def",
"_read_mode_tcpao",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"key_",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"rkey",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"mac_",
"=",
"self",
".",
"_read_fileng",
"(",
"size",
"-",
"2",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
",",
"keyid",
"=",
"key_",
",",
"rnextkeyid",
"=",
"rkey",
",",
"mac",
"=",
"mac_",
",",
")",
"return",
"data"
] | Read Authentication option.
Positional arguments:
* size - int, length of option
* kind - int, 29 (TCP Authentication Option)
Returns:
* dict -- extracted Authentication (AO) option
Structure of TCP AOopt [RFC 5925]:
+------------+------------+------------+------------+
| Kind=29 | Length | KeyID | RNextKeyID |
+------------+------------+------------+------------+
| MAC ...
+-----------------------------------...
...-----------------+
... MAC (con't) |
...-----------------+
Octets Bits Name Description
0 0 tcp.ao.kind Kind (29)
1 8 tcp.ao.length Length
2 16 tcp.ao.keyid KeyID
3 24 tcp.ao.rnextkeyid RNextKeyID
4 32 tcp.ao.mac Message Authentication Code | [
"Read",
"Authentication",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L643-L684 |
1,229 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mode_mptcp | def _read_mode_mptcp(self, size, kind):
"""Read Multipath TCP option.
Positional arguments:
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Multipath TCP (MP-TCP) option
Structure of MP-TCP [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-----------------------+
| Kind | Length |Subtype| |
+---------------+---------------+-------+ |
| Subtype-specific data |
| (variable length) |
+---------------------------------------------------------------+
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length
2 16 tcp.mp.subtype Subtype
2 20 tcp.mp.data Subtype-specific Data
"""
bins = self._read_binary(1)
subt = int(bins[:4], base=2) # subtype number
bits = bins[4:] # 4-bit data
dlen = size - 1 # length of remaining data
# fetch subtype-specific data
func = mptcp_opt.get(subt)
if func is None: # if subtype not exist, directly read all data
temp = self._read_fileng(dlen)
data = dict(
kind=kind,
length=size,
subtype='Unknown',
data=bytes(chr(int(bits[:4], base=2)), encoding='utf-8') + temp,
)
else: # fetch corresponding subtype data dict
data = func(self, bits, dlen, kind)
return data | python | def _read_mode_mptcp(self, size, kind):
bins = self._read_binary(1)
subt = int(bins[:4], base=2) # subtype number
bits = bins[4:] # 4-bit data
dlen = size - 1 # length of remaining data
# fetch subtype-specific data
func = mptcp_opt.get(subt)
if func is None: # if subtype not exist, directly read all data
temp = self._read_fileng(dlen)
data = dict(
kind=kind,
length=size,
subtype='Unknown',
data=bytes(chr(int(bits[:4], base=2)), encoding='utf-8') + temp,
)
else: # fetch corresponding subtype data dict
data = func(self, bits, dlen, kind)
return data | [
"def",
"_read_mode_mptcp",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"bins",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"subt",
"=",
"int",
"(",
"bins",
"[",
":",
"4",
"]",
",",
"base",
"=",
"2",
")",
"# subtype number",
"bits",
"=",
"bins",
"[",
"4",
":",
"]",
"# 4-bit data",
"dlen",
"=",
"size",
"-",
"1",
"# length of remaining data",
"# fetch subtype-specific data",
"func",
"=",
"mptcp_opt",
".",
"get",
"(",
"subt",
")",
"if",
"func",
"is",
"None",
":",
"# if subtype not exist, directly read all data",
"temp",
"=",
"self",
".",
"_read_fileng",
"(",
"dlen",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
",",
"subtype",
"=",
"'Unknown'",
",",
"data",
"=",
"bytes",
"(",
"chr",
"(",
"int",
"(",
"bits",
"[",
":",
"4",
"]",
",",
"base",
"=",
"2",
")",
")",
",",
"encoding",
"=",
"'utf-8'",
")",
"+",
"temp",
",",
")",
"else",
":",
"# fetch corresponding subtype data dict",
"data",
"=",
"func",
"(",
"self",
",",
"bits",
",",
"dlen",
",",
"kind",
")",
"return",
"data"
] | Read Multipath TCP option.
Positional arguments:
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Multipath TCP (MP-TCP) option
Structure of MP-TCP [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-----------------------+
| Kind | Length |Subtype| |
+---------------+---------------+-------+ |
| Subtype-specific data |
| (variable length) |
+---------------------------------------------------------------+
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length
2 16 tcp.mp.subtype Subtype
2 20 tcp.mp.data Subtype-specific Data | [
"Read",
"Multipath",
"TCP",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L686-L730 |
1,230 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mptcp_capable | def _read_mptcp_capable(self, bits, size, kind):
"""Read Multipath Capable option.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Multipath Capable (MP_CAPABLE) option
Structure of MP_CAPABLE [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-------+---------------+
| Kind | Length |Subtype|Version|A|B|C|D|E|F|G|H|
+---------------+---------------+-------+-------+---------------+
| Option Sender's Key (64 bits) |
| |
| |
+---------------------------------------------------------------+
| Option Receiver's Key (64 bits) |
| (if option Length == 20) |
| |
+---------------------------------------------------------------+
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length (12/20)
2 16 tcp.mp.subtype Subtype (0)
2 20 tcp.mp.capable.version Version
3 24 tcp.mp.capable.flags.req Checksum Require Flag (A)
3 25 tcp.mp.capable.flags.ext Extensibility Flag (B)
3 26 tcp.mp.capable.flags.res Unassigned (C-G)
3 31 tcp.mp.capable.flags.hsa HMAC-SHA1 Flag (H)
4 32 tcp.mp.capable.skey Option Sender's Key
12 96 tcp.mp.capable.rkey Option Receiver's Key
(if option Length == 20)
"""
vers = int(bits, base=2)
bins = self._read_binary(1)
skey = self._read_fileng(8)
rkey = self._read_fileng(8) if size == 17 else None
data = dict(
kind=kind,
length=size + 1,
subtype='MP_CAPABLE',
capable=dict(
version=vers,
flags=dict(
req=True if int(bins[0]) else False,
ext=True if int(bins[1]) else False,
res=bytes(chr(int(bits[2:7], base=2)), encoding='utf-8'),
hsa=True if int(bins[7]) else False,
),
skey=skey,
rkey=rkey,
),
)
return data | python | def _read_mptcp_capable(self, bits, size, kind):
vers = int(bits, base=2)
bins = self._read_binary(1)
skey = self._read_fileng(8)
rkey = self._read_fileng(8) if size == 17 else None
data = dict(
kind=kind,
length=size + 1,
subtype='MP_CAPABLE',
capable=dict(
version=vers,
flags=dict(
req=True if int(bins[0]) else False,
ext=True if int(bins[1]) else False,
res=bytes(chr(int(bits[2:7], base=2)), encoding='utf-8'),
hsa=True if int(bins[7]) else False,
),
skey=skey,
rkey=rkey,
),
)
return data | [
"def",
"_read_mptcp_capable",
"(",
"self",
",",
"bits",
",",
"size",
",",
"kind",
")",
":",
"vers",
"=",
"int",
"(",
"bits",
",",
"base",
"=",
"2",
")",
"bins",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"skey",
"=",
"self",
".",
"_read_fileng",
"(",
"8",
")",
"rkey",
"=",
"self",
".",
"_read_fileng",
"(",
"8",
")",
"if",
"size",
"==",
"17",
"else",
"None",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
"+",
"1",
",",
"subtype",
"=",
"'MP_CAPABLE'",
",",
"capable",
"=",
"dict",
"(",
"version",
"=",
"vers",
",",
"flags",
"=",
"dict",
"(",
"req",
"=",
"True",
"if",
"int",
"(",
"bins",
"[",
"0",
"]",
")",
"else",
"False",
",",
"ext",
"=",
"True",
"if",
"int",
"(",
"bins",
"[",
"1",
"]",
")",
"else",
"False",
",",
"res",
"=",
"bytes",
"(",
"chr",
"(",
"int",
"(",
"bits",
"[",
"2",
":",
"7",
"]",
",",
"base",
"=",
"2",
")",
")",
",",
"encoding",
"=",
"'utf-8'",
")",
",",
"hsa",
"=",
"True",
"if",
"int",
"(",
"bins",
"[",
"7",
"]",
")",
"else",
"False",
",",
")",
",",
"skey",
"=",
"skey",
",",
"rkey",
"=",
"rkey",
",",
")",
",",
")",
"return",
"data"
] | Read Multipath Capable option.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Multipath Capable (MP_CAPABLE) option
Structure of MP_CAPABLE [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-------+---------------+
| Kind | Length |Subtype|Version|A|B|C|D|E|F|G|H|
+---------------+---------------+-------+-------+---------------+
| Option Sender's Key (64 bits) |
| |
| |
+---------------------------------------------------------------+
| Option Receiver's Key (64 bits) |
| (if option Length == 20) |
| |
+---------------------------------------------------------------+
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length (12/20)
2 16 tcp.mp.subtype Subtype (0)
2 20 tcp.mp.capable.version Version
3 24 tcp.mp.capable.flags.req Checksum Require Flag (A)
3 25 tcp.mp.capable.flags.ext Extensibility Flag (B)
3 26 tcp.mp.capable.flags.res Unassigned (C-G)
3 31 tcp.mp.capable.flags.hsa HMAC-SHA1 Flag (H)
4 32 tcp.mp.capable.skey Option Sender's Key
12 96 tcp.mp.capable.rkey Option Receiver's Key
(if option Length == 20) | [
"Read",
"Multipath",
"Capable",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L732-L794 |
1,231 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mptcp_join | def _read_mptcp_join(self, bits, size, kind):
"""Read Join Connection option.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Join Connection (MP_JOIN) option
Structure of MP_JOIN [RFC 6824]:
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length
2 16 tcp.mp.subtype Subtype (1)
2 20 tcp.mp.data Handshake-specific Data
"""
if self._syn and self._ack: # MP_JOIN-SYN/ACK
return self._read_join_synack(bits, size, kind)
elif self._syn: # MP_JOIN-SYN
return self._read_join_syn(bits, size, kind)
elif self._ack: # MP_JOIN-ACK
return self._read_join_ack(bits, size, kind)
else: # illegal MP_JOIN occurred
temp = self._read_fileng(size)
data = dict(
kind=kind,
length=size + 1,
subtype='MP_JOIN-Unknown',
data=bytes(chr(int(bits[:4], base=2)), encoding='utf-8') + temp,
)
return data | python | def _read_mptcp_join(self, bits, size, kind):
if self._syn and self._ack: # MP_JOIN-SYN/ACK
return self._read_join_synack(bits, size, kind)
elif self._syn: # MP_JOIN-SYN
return self._read_join_syn(bits, size, kind)
elif self._ack: # MP_JOIN-ACK
return self._read_join_ack(bits, size, kind)
else: # illegal MP_JOIN occurred
temp = self._read_fileng(size)
data = dict(
kind=kind,
length=size + 1,
subtype='MP_JOIN-Unknown',
data=bytes(chr(int(bits[:4], base=2)), encoding='utf-8') + temp,
)
return data | [
"def",
"_read_mptcp_join",
"(",
"self",
",",
"bits",
",",
"size",
",",
"kind",
")",
":",
"if",
"self",
".",
"_syn",
"and",
"self",
".",
"_ack",
":",
"# MP_JOIN-SYN/ACK",
"return",
"self",
".",
"_read_join_synack",
"(",
"bits",
",",
"size",
",",
"kind",
")",
"elif",
"self",
".",
"_syn",
":",
"# MP_JOIN-SYN",
"return",
"self",
".",
"_read_join_syn",
"(",
"bits",
",",
"size",
",",
"kind",
")",
"elif",
"self",
".",
"_ack",
":",
"# MP_JOIN-ACK",
"return",
"self",
".",
"_read_join_ack",
"(",
"bits",
",",
"size",
",",
"kind",
")",
"else",
":",
"# illegal MP_JOIN occurred",
"temp",
"=",
"self",
".",
"_read_fileng",
"(",
"size",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
"+",
"1",
",",
"subtype",
"=",
"'MP_JOIN-Unknown'",
",",
"data",
"=",
"bytes",
"(",
"chr",
"(",
"int",
"(",
"bits",
"[",
":",
"4",
"]",
",",
"base",
"=",
"2",
")",
")",
",",
"encoding",
"=",
"'utf-8'",
")",
"+",
"temp",
",",
")",
"return",
"data"
] | Read Join Connection option.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Join Connection (MP_JOIN) option
Structure of MP_JOIN [RFC 6824]:
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length
2 16 tcp.mp.subtype Subtype (1)
2 20 tcp.mp.data Handshake-specific Data | [
"Read",
"Join",
"Connection",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L796-L829 |
1,232 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_join_syn | def _read_join_syn(self, bits, size, kind):
"""Read Join Connection option for Initial SYN.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Join Connection (MP_JOIN-SYN) option for Initial SYN
Structure of MP_JOIN-SYN [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-----+-+---------------+
| Kind | Length = 12 |Subtype| |B| Address ID |
+---------------+---------------+-------+-----+-+---------------+
| Receiver's Token (32 bits) |
+---------------------------------------------------------------+
| Sender's Random Number (32 bits) |
+---------------------------------------------------------------+
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length (12)
2 16 tcp.mp.subtype Subtype (1|SYN)
2 20 - Reserved (must be zero)
2 23 tcp.mp.join.syn.backup Backup Path (B)
3 24 tcp.mp.join.syn.addrid Address ID
4 32 tcp.mp.join.syn.token Receiver's Token
8 64 tcp.mp.join.syn.randnum Sender's Random Number
"""
adid = self._read_unpack(1)
rtkn = self._read_fileng(4)
srno = self._read_unpack(4)
data = dict(
kind=kind,
length=size + 1,
subtype='MP_JOIN-SYN',
join=dict(
syn=dict(
backup=True if int(bits[3]) else False,
addrid=adid,
token=rtkn,
randnum=srno,
),
),
)
return data | python | def _read_join_syn(self, bits, size, kind):
adid = self._read_unpack(1)
rtkn = self._read_fileng(4)
srno = self._read_unpack(4)
data = dict(
kind=kind,
length=size + 1,
subtype='MP_JOIN-SYN',
join=dict(
syn=dict(
backup=True if int(bits[3]) else False,
addrid=adid,
token=rtkn,
randnum=srno,
),
),
)
return data | [
"def",
"_read_join_syn",
"(",
"self",
",",
"bits",
",",
"size",
",",
"kind",
")",
":",
"adid",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"rtkn",
"=",
"self",
".",
"_read_fileng",
"(",
"4",
")",
"srno",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
"+",
"1",
",",
"subtype",
"=",
"'MP_JOIN-SYN'",
",",
"join",
"=",
"dict",
"(",
"syn",
"=",
"dict",
"(",
"backup",
"=",
"True",
"if",
"int",
"(",
"bits",
"[",
"3",
"]",
")",
"else",
"False",
",",
"addrid",
"=",
"adid",
",",
"token",
"=",
"rtkn",
",",
"randnum",
"=",
"srno",
",",
")",
",",
")",
",",
")",
"return",
"data"
] | Read Join Connection option for Initial SYN.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Join Connection (MP_JOIN-SYN) option for Initial SYN
Structure of MP_JOIN-SYN [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-----+-+---------------+
| Kind | Length = 12 |Subtype| |B| Address ID |
+---------------+---------------+-------+-----+-+---------------+
| Receiver's Token (32 bits) |
+---------------------------------------------------------------+
| Sender's Random Number (32 bits) |
+---------------------------------------------------------------+
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length (12)
2 16 tcp.mp.subtype Subtype (1|SYN)
2 20 - Reserved (must be zero)
2 23 tcp.mp.join.syn.backup Backup Path (B)
3 24 tcp.mp.join.syn.addrid Address ID
4 32 tcp.mp.join.syn.token Receiver's Token
8 64 tcp.mp.join.syn.randnum Sender's Random Number | [
"Read",
"Join",
"Connection",
"option",
"for",
"Initial",
"SYN",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L831-L882 |
1,233 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_join_ack | def _read_join_ack(self, bits, size, kind):
"""Read Join Connection option for Third ACK.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Join Connection (MP_JOIN-ACK) option for Third ACK
Structure of MP_JOIN-ACK [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-----------------------+
| Kind | Length = 24 |Subtype| (reserved) |
+---------------+---------------+-------+-----------------------+
| |
| |
| Sender's HMAC (160 bits) |
| |
| |
+---------------------------------------------------------------+
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length (24)
2 16 tcp.mp.subtype Subtype (1|ACK)
2 20 - Reserved (must be zero)
4 32 tcp.mp.join.ack.hmac Sender's HMAC
"""
temp = self._read_fileng(20)
data = dict(
kind=kind,
length=size + 1,
subtype='MP_JOIN-ACK',
join=dict(
ack=dict(
hmac=temp,
),
),
)
return data | python | def _read_join_ack(self, bits, size, kind):
temp = self._read_fileng(20)
data = dict(
kind=kind,
length=size + 1,
subtype='MP_JOIN-ACK',
join=dict(
ack=dict(
hmac=temp,
),
),
)
return data | [
"def",
"_read_join_ack",
"(",
"self",
",",
"bits",
",",
"size",
",",
"kind",
")",
":",
"temp",
"=",
"self",
".",
"_read_fileng",
"(",
"20",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
"+",
"1",
",",
"subtype",
"=",
"'MP_JOIN-ACK'",
",",
"join",
"=",
"dict",
"(",
"ack",
"=",
"dict",
"(",
"hmac",
"=",
"temp",
",",
")",
",",
")",
",",
")",
"return",
"data"
] | Read Join Connection option for Third ACK.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Join Connection (MP_JOIN-ACK) option for Third ACK
Structure of MP_JOIN-ACK [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-----------------------+
| Kind | Length = 24 |Subtype| (reserved) |
+---------------+---------------+-------+-----------------------+
| |
| |
| Sender's HMAC (160 bits) |
| |
| |
+---------------------------------------------------------------+
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length (24)
2 16 tcp.mp.subtype Subtype (1|ACK)
2 20 - Reserved (must be zero)
4 32 tcp.mp.join.ack.hmac Sender's HMAC | [
"Read",
"Join",
"Connection",
"option",
"for",
"Third",
"ACK",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L939-L984 |
1,234 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mptcp_add | def _read_mptcp_add(self, bits, size, kind):
"""Read Add Address option.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Add Address (ADD_ADDR) option
Structure of ADD_ADDR [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-------+---------------+
| Kind | Length |Subtype| IPVer | Address ID |
+---------------+---------------+-------+-------+---------------+
| Address (IPv4 - 4 octets / IPv6 - 16 octets) |
+-------------------------------+-------------------------------+
| Port (2 octets, optional) |
+-------------------------------+
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length
2 16 tcp.mp.subtype Subtype (3)
2 20 tcp.mp.addaddr.ipver IP Version
3 24 tcp.mp.addaddr.addrid Address ID
4 32 tcp.mp.addaddr.addr IP Address (4/16)
8-20 64-160 tcp.mp.addaddr.port Port (optional)
"""
vers = int(bits, base=2)
adid = self._read_unpack(1)
ipad = self._read_fileng(4) if vers == 4 else self._read_fileng(16)
ip_l = 4 if vers == 4 else 16
pt_l = size - 1 - ip_l
port = self._read_unpack(2) if pt_l else None
data = dict(
kind=kind,
length=size + 1,
subtype='ADD_ADDR',
addaddr=dict(
ipver=vers,
addrid=adid,
addr=ipaddress.ip_address(ipad),
port=port,
),
)
return data | python | def _read_mptcp_add(self, bits, size, kind):
vers = int(bits, base=2)
adid = self._read_unpack(1)
ipad = self._read_fileng(4) if vers == 4 else self._read_fileng(16)
ip_l = 4 if vers == 4 else 16
pt_l = size - 1 - ip_l
port = self._read_unpack(2) if pt_l else None
data = dict(
kind=kind,
length=size + 1,
subtype='ADD_ADDR',
addaddr=dict(
ipver=vers,
addrid=adid,
addr=ipaddress.ip_address(ipad),
port=port,
),
)
return data | [
"def",
"_read_mptcp_add",
"(",
"self",
",",
"bits",
",",
"size",
",",
"kind",
")",
":",
"vers",
"=",
"int",
"(",
"bits",
",",
"base",
"=",
"2",
")",
"adid",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"ipad",
"=",
"self",
".",
"_read_fileng",
"(",
"4",
")",
"if",
"vers",
"==",
"4",
"else",
"self",
".",
"_read_fileng",
"(",
"16",
")",
"ip_l",
"=",
"4",
"if",
"vers",
"==",
"4",
"else",
"16",
"pt_l",
"=",
"size",
"-",
"1",
"-",
"ip_l",
"port",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"if",
"pt_l",
"else",
"None",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"length",
"=",
"size",
"+",
"1",
",",
"subtype",
"=",
"'ADD_ADDR'",
",",
"addaddr",
"=",
"dict",
"(",
"ipver",
"=",
"vers",
",",
"addrid",
"=",
"adid",
",",
"addr",
"=",
"ipaddress",
".",
"ip_address",
"(",
"ipad",
")",
",",
"port",
"=",
"port",
",",
")",
",",
")",
"return",
"data"
] | Read Add Address option.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
* kind - int, 30 (Multipath TCP)
Returns:
* dict -- extracted Add Address (ADD_ADDR) option
Structure of ADD_ADDR [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-------+---------------+
| Kind | Length |Subtype| IPVer | Address ID |
+---------------+---------------+-------+-------+---------------+
| Address (IPv4 - 4 octets / IPv6 - 16 octets) |
+-------------------------------+-------------------------------+
| Port (2 octets, optional) |
+-------------------------------+
Octets Bits Name Description
0 0 tcp.mp.kind Kind (30)
1 8 tcp.mp.length Length
2 16 tcp.mp.subtype Subtype (3)
2 20 tcp.mp.addaddr.ipver IP Version
3 24 tcp.mp.addaddr.addrid Address ID
4 32 tcp.mp.addaddr.addr IP Address (4/16)
8-20 64-160 tcp.mp.addaddr.port Port (optional) | [
"Read",
"Add",
"Address",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L1074-L1125 |
1,235 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mptcp_remove | def _read_mptcp_remove(self, bits, size):
"""Read Remove Address option.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
Returns:
* dict -- extracted Remove Address (REMOVE_ADDR) option
Structure of REMOVE_ADDR [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-------+---------------+
| Kind | Length = 3+n |Subtype|(resvd)| Address ID | ...
+---------------+---------------+-------+-------+---------------+
(followed by n-1 Address IDs, if required)
Octets Bits Name Description
0 0 tcp.opt.kind Kind (30)
1 8 tcp.opt.length Length
2 16 tcp.opt.mp.subtype Subtype (4)
2 20 - Reserved (must be zero)
3 24 tcp.opt.mp.removeaddr.addrid Address ID (optional list)
"""
adid = []
for _ in size:
adid.append(self._read_unpack(1))
data = dict(
subtype='REMOVE_ADDR',
removeaddr=dict(
addrid=adid or None,
),
)
return data | python | def _read_mptcp_remove(self, bits, size):
adid = []
for _ in size:
adid.append(self._read_unpack(1))
data = dict(
subtype='REMOVE_ADDR',
removeaddr=dict(
addrid=adid or None,
),
)
return data | [
"def",
"_read_mptcp_remove",
"(",
"self",
",",
"bits",
",",
"size",
")",
":",
"adid",
"=",
"[",
"]",
"for",
"_",
"in",
"size",
":",
"adid",
".",
"append",
"(",
"self",
".",
"_read_unpack",
"(",
"1",
")",
")",
"data",
"=",
"dict",
"(",
"subtype",
"=",
"'REMOVE_ADDR'",
",",
"removeaddr",
"=",
"dict",
"(",
"addrid",
"=",
"adid",
"or",
"None",
",",
")",
",",
")",
"return",
"data"
] | Read Remove Address option.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
Returns:
* dict -- extracted Remove Address (REMOVE_ADDR) option
Structure of REMOVE_ADDR [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-------+---------------+
| Kind | Length = 3+n |Subtype|(resvd)| Address ID | ...
+---------------+---------------+-------+-------+---------------+
(followed by n-1 Address IDs, if required)
Octets Bits Name Description
0 0 tcp.opt.kind Kind (30)
1 8 tcp.opt.length Length
2 16 tcp.opt.mp.subtype Subtype (4)
2 20 - Reserved (must be zero)
3 24 tcp.opt.mp.removeaddr.addrid Address ID (optional list) | [
"Read",
"Remove",
"Address",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L1173-L1210 |
1,236 | JarryShaw/PyPCAPKit | src/protocols/transport/tcp.py | TCP._read_mptcp_prio | def _read_mptcp_prio(self, bits, size):
"""Read Change Subflow Priority option.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
Returns:
* dict -- extracted Change Subflow Priority (MP_PRIO) option
Structure of MP_PRIO [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-----+-+--------------+
| Kind | Length |Subtype| |B| AddrID (opt) |
+---------------+---------------+-------+-----+-+--------------+
Octets Bits Name Description
0 0 tcp.opt.kind Kind (30)
1 8 tcp.opt.length Length (3/4)
2 16 tcp.opt.mp.subtype Subtype (5)
2 23 tcp.opt.mp.prio.backup Backup Path (B)
3 24 tcp.opt.mp.prio.addrid Address ID (optional)
"""
temp = self._read_unpack(1) if size else None
data = dict(
subtype='MP_PRIO',
prio=dict(
res=b'\x00' * 3,
backup=True if int(bits[3]) else False,
addrid=temp,
),
)
return data | python | def _read_mptcp_prio(self, bits, size):
temp = self._read_unpack(1) if size else None
data = dict(
subtype='MP_PRIO',
prio=dict(
res=b'\x00' * 3,
backup=True if int(bits[3]) else False,
addrid=temp,
),
)
return data | [
"def",
"_read_mptcp_prio",
"(",
"self",
",",
"bits",
",",
"size",
")",
":",
"temp",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"size",
"else",
"None",
"data",
"=",
"dict",
"(",
"subtype",
"=",
"'MP_PRIO'",
",",
"prio",
"=",
"dict",
"(",
"res",
"=",
"b'\\x00'",
"*",
"3",
",",
"backup",
"=",
"True",
"if",
"int",
"(",
"bits",
"[",
"3",
"]",
")",
"else",
"False",
",",
"addrid",
"=",
"temp",
",",
")",
",",
")",
"return",
"data"
] | Read Change Subflow Priority option.
Positional arguments:
* bits - str, 4-bit data
* size - int, length of option
Returns:
* dict -- extracted Change Subflow Priority (MP_PRIO) option
Structure of MP_PRIO [RFC 6824]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+---------------+---------------+-------+-----+-+--------------+
| Kind | Length |Subtype| |B| AddrID (opt) |
+---------------+---------------+-------+-----+-+--------------+
Octets Bits Name Description
0 0 tcp.opt.kind Kind (30)
1 8 tcp.opt.length Length (3/4)
2 16 tcp.opt.mp.subtype Subtype (5)
2 23 tcp.opt.mp.prio.backup Backup Path (B)
3 24 tcp.opt.mp.prio.addrid Address ID (optional) | [
"Read",
"Change",
"Subflow",
"Priority",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/transport/tcp.py#L1212-L1248 |
1,237 | JarryShaw/PyPCAPKit | src/interface/__init__.py | extract | def extract(fin=None, fout=None, format=None, # basic settings
auto=True, extension=True, store=True, # internal settings
files=False, nofile=False, verbose=False, # output settings
engine=None, layer=None, protocol=None, # extraction settings
ip=False, ipv4=False, ipv6=False, tcp=False, strict=True, # reassembly settings
trace=False, trace_fout=None, trace_format=None, # trace settings
trace_byteorder=sys.byteorder, trace_nanosecond=False): # trace settings
"""Extract a PCAP file.
Keyword arguments:
* fin -- str, file name to be read; if file not exist, raise an error
* fout -- str, file name to be written
* format -- str, file format of output
<keyword> 'plist' / 'json' / 'tree' / 'html'
* auto -- bool, if automatically run till EOF (default is True)
<keyword> True / False
* extension -- bool, if check and append extensions to output file (default is True)
<keyword> True / False
* store -- bool, if store extracted packet info (default is True)
<keyword> True / False
* files -- bool, if split each frame into different files (default is False)
<keyword> True / False
* nofile -- bool, if no output file is to be dumped (default is False)
<keyword> True / False
* verbose -- bool, if print verbose output information (default is False)
<keyword> True / False
* engine -- str, extraction engine to be used
<keyword> 'default | pcapkit'
* layer -- str, extract til which layer
<keyword> 'Link' / 'Internet' / 'Transport' / 'Application'
* protocol -- str, extract til which protocol
<keyword> available protocol name
* ip -- bool, if record data for IPv4 & IPv6 reassembly (default is False)
<keyword> True / False
* ipv4 -- bool, if perform IPv4 reassembly (default is False)
<keyword> True / False
* ipv6 -- bool, if perform IPv6 reassembly (default is False)
<keyword> True / False
* tcp -- bool, if perform TCP reassembly (default is False)
<keyword> True / False
* strict -- bool, if set strict flag for reassembly (default is True)
<keyword> True / False
* trace -- bool, if trace TCP traffic flows (default is False)
<keyword> True / False
* trace_fout -- str, path name for flow tracer if necessary
* trace_format -- str, output file format of flow tracer
<keyword> 'plist' / 'json' / 'tree' / 'html' / 'pcap'
* trace_byteorder -- str, output file byte order
<keyword> 'little' / 'big'
* trace_nanosecond -- bool, output nanosecond-resolution file flag
<keyword> True / False
Returns:
* Extractor -- an Extractor object form `pcapkit.extractor`
"""
if isinstance(layer, type) and issubclass(layer, Protocol):
layer = layer.__layer__
if isinstance(protocol, type) and issubclass(protocol, Protocol):
protocol = protocol.__index__()
str_check(fin or '', fout or '', format or '',
trace_fout or '', trace_format or '',
engine or '', layer or '', *(protocol or ''))
bool_check(files, nofile, verbose, auto, extension, store,
ip, ipv4, ipv6, tcp, strict, trace)
return Extractor(fin=fin, fout=fout, format=format,
store=store, files=files, nofile=nofile,
auto=auto, verbose=verbose, extension=extension,
engine=engine, layer=layer, protocol=protocol,
ip=ip, ipv4=ipv4, ipv6=ipv6, tcp=tcp, strict=strict,
trace=trace, trace_fout=trace_fout, trace_format=trace_format,
trace_byteorder=trace_byteorder, trace_nanosecond=trace_nanosecond) | python | def extract(fin=None, fout=None, format=None, # basic settings
auto=True, extension=True, store=True, # internal settings
files=False, nofile=False, verbose=False, # output settings
engine=None, layer=None, protocol=None, # extraction settings
ip=False, ipv4=False, ipv6=False, tcp=False, strict=True, # reassembly settings
trace=False, trace_fout=None, trace_format=None, # trace settings
trace_byteorder=sys.byteorder, trace_nanosecond=False): # trace settings
if isinstance(layer, type) and issubclass(layer, Protocol):
layer = layer.__layer__
if isinstance(protocol, type) and issubclass(protocol, Protocol):
protocol = protocol.__index__()
str_check(fin or '', fout or '', format or '',
trace_fout or '', trace_format or '',
engine or '', layer or '', *(protocol or ''))
bool_check(files, nofile, verbose, auto, extension, store,
ip, ipv4, ipv6, tcp, strict, trace)
return Extractor(fin=fin, fout=fout, format=format,
store=store, files=files, nofile=nofile,
auto=auto, verbose=verbose, extension=extension,
engine=engine, layer=layer, protocol=protocol,
ip=ip, ipv4=ipv4, ipv6=ipv6, tcp=tcp, strict=strict,
trace=trace, trace_fout=trace_fout, trace_format=trace_format,
trace_byteorder=trace_byteorder, trace_nanosecond=trace_nanosecond) | [
"def",
"extract",
"(",
"fin",
"=",
"None",
",",
"fout",
"=",
"None",
",",
"format",
"=",
"None",
",",
"# basic settings",
"auto",
"=",
"True",
",",
"extension",
"=",
"True",
",",
"store",
"=",
"True",
",",
"# internal settings",
"files",
"=",
"False",
",",
"nofile",
"=",
"False",
",",
"verbose",
"=",
"False",
",",
"# output settings",
"engine",
"=",
"None",
",",
"layer",
"=",
"None",
",",
"protocol",
"=",
"None",
",",
"# extraction settings",
"ip",
"=",
"False",
",",
"ipv4",
"=",
"False",
",",
"ipv6",
"=",
"False",
",",
"tcp",
"=",
"False",
",",
"strict",
"=",
"True",
",",
"# reassembly settings",
"trace",
"=",
"False",
",",
"trace_fout",
"=",
"None",
",",
"trace_format",
"=",
"None",
",",
"# trace settings",
"trace_byteorder",
"=",
"sys",
".",
"byteorder",
",",
"trace_nanosecond",
"=",
"False",
")",
":",
"# trace settings",
"if",
"isinstance",
"(",
"layer",
",",
"type",
")",
"and",
"issubclass",
"(",
"layer",
",",
"Protocol",
")",
":",
"layer",
"=",
"layer",
".",
"__layer__",
"if",
"isinstance",
"(",
"protocol",
",",
"type",
")",
"and",
"issubclass",
"(",
"protocol",
",",
"Protocol",
")",
":",
"protocol",
"=",
"protocol",
".",
"__index__",
"(",
")",
"str_check",
"(",
"fin",
"or",
"''",
",",
"fout",
"or",
"''",
",",
"format",
"or",
"''",
",",
"trace_fout",
"or",
"''",
",",
"trace_format",
"or",
"''",
",",
"engine",
"or",
"''",
",",
"layer",
"or",
"''",
",",
"*",
"(",
"protocol",
"or",
"''",
")",
")",
"bool_check",
"(",
"files",
",",
"nofile",
",",
"verbose",
",",
"auto",
",",
"extension",
",",
"store",
",",
"ip",
",",
"ipv4",
",",
"ipv6",
",",
"tcp",
",",
"strict",
",",
"trace",
")",
"return",
"Extractor",
"(",
"fin",
"=",
"fin",
",",
"fout",
"=",
"fout",
",",
"format",
"=",
"format",
",",
"store",
"=",
"store",
",",
"files",
"=",
"files",
",",
"nofile",
"=",
"nofile",
",",
"auto",
"=",
"auto",
",",
"verbose",
"=",
"verbose",
",",
"extension",
"=",
"extension",
",",
"engine",
"=",
"engine",
",",
"layer",
"=",
"layer",
",",
"protocol",
"=",
"protocol",
",",
"ip",
"=",
"ip",
",",
"ipv4",
"=",
"ipv4",
",",
"ipv6",
"=",
"ipv6",
",",
"tcp",
"=",
"tcp",
",",
"strict",
"=",
"strict",
",",
"trace",
"=",
"trace",
",",
"trace_fout",
"=",
"trace_fout",
",",
"trace_format",
"=",
"trace_format",
",",
"trace_byteorder",
"=",
"trace_byteorder",
",",
"trace_nanosecond",
"=",
"trace_nanosecond",
")"
] | Extract a PCAP file.
Keyword arguments:
* fin -- str, file name to be read; if file not exist, raise an error
* fout -- str, file name to be written
* format -- str, file format of output
<keyword> 'plist' / 'json' / 'tree' / 'html'
* auto -- bool, if automatically run till EOF (default is True)
<keyword> True / False
* extension -- bool, if check and append extensions to output file (default is True)
<keyword> True / False
* store -- bool, if store extracted packet info (default is True)
<keyword> True / False
* files -- bool, if split each frame into different files (default is False)
<keyword> True / False
* nofile -- bool, if no output file is to be dumped (default is False)
<keyword> True / False
* verbose -- bool, if print verbose output information (default is False)
<keyword> True / False
* engine -- str, extraction engine to be used
<keyword> 'default | pcapkit'
* layer -- str, extract til which layer
<keyword> 'Link' / 'Internet' / 'Transport' / 'Application'
* protocol -- str, extract til which protocol
<keyword> available protocol name
* ip -- bool, if record data for IPv4 & IPv6 reassembly (default is False)
<keyword> True / False
* ipv4 -- bool, if perform IPv4 reassembly (default is False)
<keyword> True / False
* ipv6 -- bool, if perform IPv6 reassembly (default is False)
<keyword> True / False
* tcp -- bool, if perform TCP reassembly (default is False)
<keyword> True / False
* strict -- bool, if set strict flag for reassembly (default is True)
<keyword> True / False
* trace -- bool, if trace TCP traffic flows (default is False)
<keyword> True / False
* trace_fout -- str, path name for flow tracer if necessary
* trace_format -- str, output file format of flow tracer
<keyword> 'plist' / 'json' / 'tree' / 'html' / 'pcap'
* trace_byteorder -- str, output file byte order
<keyword> 'little' / 'big'
* trace_nanosecond -- bool, output nanosecond-resolution file flag
<keyword> True / False
Returns:
* Extractor -- an Extractor object form `pcapkit.extractor` | [
"Extract",
"a",
"PCAP",
"file",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/interface/__init__.py#L53-L131 |
1,238 | JarryShaw/PyPCAPKit | src/interface/__init__.py | reassemble | def reassemble(protocol, strict=False):
"""Reassemble fragmented datagrams.
Keyword arguments:
* protocol -- str, protocol to be reassembled
* strict -- bool, if return all datagrams (including those not implemented) when submit (default is False)
<keyword> True / False
Returns:
* [if protocol is IPv4] IPv4_Reassembly -- a Reassembly object from `pcapkit.reassembly`
* [if protocol is IPv6] IPv6_Reassembly -- a Reassembly object from `pcapkit.reassembly`
* [if protocol is TCP] TCP_Reassembly -- a Reassembly object from `pcapkit.reassembly`
"""
if isinstance(protocol, type) and issubclass(protocol, Protocol):
protocol = protocol.__index__()
str_check(protocol)
bool_check(strict)
if protocol == 'IPv4':
return IPv4_Reassembly(strict=strict)
elif protocol == 'IPv6':
return IPv6_Reassembly(strict=strict)
elif protocol == 'TCP':
return TCP_Reassembly(strict=strict)
else:
raise FormatError(f'Unsupported reassembly protocol: {protocol}') | python | def reassemble(protocol, strict=False):
if isinstance(protocol, type) and issubclass(protocol, Protocol):
protocol = protocol.__index__()
str_check(protocol)
bool_check(strict)
if protocol == 'IPv4':
return IPv4_Reassembly(strict=strict)
elif protocol == 'IPv6':
return IPv6_Reassembly(strict=strict)
elif protocol == 'TCP':
return TCP_Reassembly(strict=strict)
else:
raise FormatError(f'Unsupported reassembly protocol: {protocol}') | [
"def",
"reassemble",
"(",
"protocol",
",",
"strict",
"=",
"False",
")",
":",
"if",
"isinstance",
"(",
"protocol",
",",
"type",
")",
"and",
"issubclass",
"(",
"protocol",
",",
"Protocol",
")",
":",
"protocol",
"=",
"protocol",
".",
"__index__",
"(",
")",
"str_check",
"(",
"protocol",
")",
"bool_check",
"(",
"strict",
")",
"if",
"protocol",
"==",
"'IPv4'",
":",
"return",
"IPv4_Reassembly",
"(",
"strict",
"=",
"strict",
")",
"elif",
"protocol",
"==",
"'IPv6'",
":",
"return",
"IPv6_Reassembly",
"(",
"strict",
"=",
"strict",
")",
"elif",
"protocol",
"==",
"'TCP'",
":",
"return",
"TCP_Reassembly",
"(",
"strict",
"=",
"strict",
")",
"else",
":",
"raise",
"FormatError",
"(",
"f'Unsupported reassembly protocol: {protocol}'",
")"
] | Reassemble fragmented datagrams.
Keyword arguments:
* protocol -- str, protocol to be reassembled
* strict -- bool, if return all datagrams (including those not implemented) when submit (default is False)
<keyword> True / False
Returns:
* [if protocol is IPv4] IPv4_Reassembly -- a Reassembly object from `pcapkit.reassembly`
* [if protocol is IPv6] IPv6_Reassembly -- a Reassembly object from `pcapkit.reassembly`
* [if protocol is TCP] TCP_Reassembly -- a Reassembly object from `pcapkit.reassembly` | [
"Reassemble",
"fragmented",
"datagrams",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/interface/__init__.py#L154-L181 |
1,239 | JarryShaw/PyPCAPKit | src/interface/__init__.py | trace | def trace(fout=None, format=None, byteorder=sys.byteorder, nanosecond=False):
"""Trace TCP flows.
Keyword arguments:
* fout -- str, output path
* format -- str, output format
* byteorder -- str, output file byte order
* nanosecond -- bool, output nanosecond-resolution file flag
"""
str_check(fout or '', format or '')
return TraceFlow(fout=fout, format=format, byteorder=byteorder, nanosecond=nanosecond) | python | def trace(fout=None, format=None, byteorder=sys.byteorder, nanosecond=False):
str_check(fout or '', format or '')
return TraceFlow(fout=fout, format=format, byteorder=byteorder, nanosecond=nanosecond) | [
"def",
"trace",
"(",
"fout",
"=",
"None",
",",
"format",
"=",
"None",
",",
"byteorder",
"=",
"sys",
".",
"byteorder",
",",
"nanosecond",
"=",
"False",
")",
":",
"str_check",
"(",
"fout",
"or",
"''",
",",
"format",
"or",
"''",
")",
"return",
"TraceFlow",
"(",
"fout",
"=",
"fout",
",",
"format",
"=",
"format",
",",
"byteorder",
"=",
"byteorder",
",",
"nanosecond",
"=",
"nanosecond",
")"
] | Trace TCP flows.
Keyword arguments:
* fout -- str, output path
* format -- str, output format
* byteorder -- str, output file byte order
* nanosecond -- bool, output nanosecond-resolution file flag | [
"Trace",
"TCP",
"flows",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/interface/__init__.py#L184-L195 |
1,240 | JarryShaw/PyPCAPKit | src/protocols/internet/ipv6_frag.py | IPv6_Frag.read_ipv6_frag | def read_ipv6_frag(self, length, extension):
"""Read Fragment Header for IPv6.
Structure of IPv6-Frag header [RFC 8200]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Reserved | Fragment Offset |Res|M|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Identification |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 frag.next Next Header
1 8 - Reserved
2 16 frag.offset Fragment Offset
3 29 - Reserved
3 31 frag.mf More Flag
4 32 frag.id Identification
"""
if length is None:
length = len(self)
_next = self._read_protos(1)
_temp = self._read_fileng(1)
_offm = self._read_binary(2)
_ipid = self._read_unpack(4)
ipv6_frag = dict(
next=_next,
length=8,
offset=int(_offm[:13], base=2),
mf=True if int(_offm[15], base=2) else False,
id=_ipid,
)
length -= ipv6_frag['length']
ipv6_frag['packet'] = self._read_packet(header=8, payload=length)
if extension:
self._protos = None
return ipv6_frag
return self._decode_next_layer(ipv6_frag, _next, length) | python | def read_ipv6_frag(self, length, extension):
if length is None:
length = len(self)
_next = self._read_protos(1)
_temp = self._read_fileng(1)
_offm = self._read_binary(2)
_ipid = self._read_unpack(4)
ipv6_frag = dict(
next=_next,
length=8,
offset=int(_offm[:13], base=2),
mf=True if int(_offm[15], base=2) else False,
id=_ipid,
)
length -= ipv6_frag['length']
ipv6_frag['packet'] = self._read_packet(header=8, payload=length)
if extension:
self._protos = None
return ipv6_frag
return self._decode_next_layer(ipv6_frag, _next, length) | [
"def",
"read_ipv6_frag",
"(",
"self",
",",
"length",
",",
"extension",
")",
":",
"if",
"length",
"is",
"None",
":",
"length",
"=",
"len",
"(",
"self",
")",
"_next",
"=",
"self",
".",
"_read_protos",
"(",
"1",
")",
"_temp",
"=",
"self",
".",
"_read_fileng",
"(",
"1",
")",
"_offm",
"=",
"self",
".",
"_read_binary",
"(",
"2",
")",
"_ipid",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
")",
"ipv6_frag",
"=",
"dict",
"(",
"next",
"=",
"_next",
",",
"length",
"=",
"8",
",",
"offset",
"=",
"int",
"(",
"_offm",
"[",
":",
"13",
"]",
",",
"base",
"=",
"2",
")",
",",
"mf",
"=",
"True",
"if",
"int",
"(",
"_offm",
"[",
"15",
"]",
",",
"base",
"=",
"2",
")",
"else",
"False",
",",
"id",
"=",
"_ipid",
",",
")",
"length",
"-=",
"ipv6_frag",
"[",
"'length'",
"]",
"ipv6_frag",
"[",
"'packet'",
"]",
"=",
"self",
".",
"_read_packet",
"(",
"header",
"=",
"8",
",",
"payload",
"=",
"length",
")",
"if",
"extension",
":",
"self",
".",
"_protos",
"=",
"None",
"return",
"ipv6_frag",
"return",
"self",
".",
"_decode_next_layer",
"(",
"ipv6_frag",
",",
"_next",
",",
"length",
")"
] | Read Fragment Header for IPv6.
Structure of IPv6-Frag header [RFC 8200]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Reserved | Fragment Offset |Res|M|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Identification |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 frag.next Next Header
1 8 - Reserved
2 16 frag.offset Fragment Offset
3 29 - Reserved
3 31 frag.mf More Flag
4 32 frag.id Identification | [
"Read",
"Fragment",
"Header",
"for",
"IPv6",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ipv6_frag.py#L87-L128 |
1,241 | JarryShaw/PyPCAPKit | src/protocols/internet/ipv4.py | IPv4._read_ipv4_options | def _read_ipv4_options(self, size=None):
"""Read IPv4 option list.
Positional arguments:
* size -- int, buffer size
Returns:
* tuple -- IPv4 option list
* dict -- extracted IPv4 option
"""
counter = 0 # length of read option list
optkind = list() # option kind list
options = dict() # dict of option data
while counter < size:
# get option kind
kind = self._read_unpack(1)
# fetch corresponding option tuple
opts = IPv4_OPT.get(kind)
if opts is None:
len_ = size - counter
counter = size
options['Unknown'] = self._read_fileng(len_)
break
# extract option
dscp = OPT_TYPE.get(kind)
desc = dscp.name
if opts[0]:
byte = self._read_unpack(1)
if byte: # check option process mode
data = process_opt[opts[2]](self, byte, kind)
else: # permission options (length is 2)
data = dict(
kind=kind, # option kind
type=self._read_opt_type(kind), # option type info
length=2, # option length
flag=True, # permission flag
)
else: # 1-bytes options
byte = 1
data = dict(
kind=kind, # option kind
type=self._read_opt_type(kind), # option type info
length=1, # option length
)
# record option data
counter += byte
if dscp in optkind:
if isinstance(options[desc], tuple):
options[desc] += (Info(data),)
else:
options[desc] = (Info(options[desc]), Info(data))
else:
optkind.append(dscp)
options[desc] = data
# break when eol triggered
if not kind:
break
# get padding
if counter < size:
len_ = size - counter
self._read_binary(len_)
return tuple(optkind), options | python | def _read_ipv4_options(self, size=None):
counter = 0 # length of read option list
optkind = list() # option kind list
options = dict() # dict of option data
while counter < size:
# get option kind
kind = self._read_unpack(1)
# fetch corresponding option tuple
opts = IPv4_OPT.get(kind)
if opts is None:
len_ = size - counter
counter = size
options['Unknown'] = self._read_fileng(len_)
break
# extract option
dscp = OPT_TYPE.get(kind)
desc = dscp.name
if opts[0]:
byte = self._read_unpack(1)
if byte: # check option process mode
data = process_opt[opts[2]](self, byte, kind)
else: # permission options (length is 2)
data = dict(
kind=kind, # option kind
type=self._read_opt_type(kind), # option type info
length=2, # option length
flag=True, # permission flag
)
else: # 1-bytes options
byte = 1
data = dict(
kind=kind, # option kind
type=self._read_opt_type(kind), # option type info
length=1, # option length
)
# record option data
counter += byte
if dscp in optkind:
if isinstance(options[desc], tuple):
options[desc] += (Info(data),)
else:
options[desc] = (Info(options[desc]), Info(data))
else:
optkind.append(dscp)
options[desc] = data
# break when eol triggered
if not kind:
break
# get padding
if counter < size:
len_ = size - counter
self._read_binary(len_)
return tuple(optkind), options | [
"def",
"_read_ipv4_options",
"(",
"self",
",",
"size",
"=",
"None",
")",
":",
"counter",
"=",
"0",
"# length of read option list",
"optkind",
"=",
"list",
"(",
")",
"# option kind list",
"options",
"=",
"dict",
"(",
")",
"# dict of option data",
"while",
"counter",
"<",
"size",
":",
"# get option kind",
"kind",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"# fetch corresponding option tuple",
"opts",
"=",
"IPv4_OPT",
".",
"get",
"(",
"kind",
")",
"if",
"opts",
"is",
"None",
":",
"len_",
"=",
"size",
"-",
"counter",
"counter",
"=",
"size",
"options",
"[",
"'Unknown'",
"]",
"=",
"self",
".",
"_read_fileng",
"(",
"len_",
")",
"break",
"# extract option",
"dscp",
"=",
"OPT_TYPE",
".",
"get",
"(",
"kind",
")",
"desc",
"=",
"dscp",
".",
"name",
"if",
"opts",
"[",
"0",
"]",
":",
"byte",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"byte",
":",
"# check option process mode",
"data",
"=",
"process_opt",
"[",
"opts",
"[",
"2",
"]",
"]",
"(",
"self",
",",
"byte",
",",
"kind",
")",
"else",
":",
"# permission options (length is 2)",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"# option kind",
"type",
"=",
"self",
".",
"_read_opt_type",
"(",
"kind",
")",
",",
"# option type info",
"length",
"=",
"2",
",",
"# option length",
"flag",
"=",
"True",
",",
"# permission flag",
")",
"else",
":",
"# 1-bytes options",
"byte",
"=",
"1",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"# option kind",
"type",
"=",
"self",
".",
"_read_opt_type",
"(",
"kind",
")",
",",
"# option type info",
"length",
"=",
"1",
",",
"# option length",
")",
"# record option data",
"counter",
"+=",
"byte",
"if",
"dscp",
"in",
"optkind",
":",
"if",
"isinstance",
"(",
"options",
"[",
"desc",
"]",
",",
"tuple",
")",
":",
"options",
"[",
"desc",
"]",
"+=",
"(",
"Info",
"(",
"data",
")",
",",
")",
"else",
":",
"options",
"[",
"desc",
"]",
"=",
"(",
"Info",
"(",
"options",
"[",
"desc",
"]",
")",
",",
"Info",
"(",
"data",
")",
")",
"else",
":",
"optkind",
".",
"append",
"(",
"dscp",
")",
"options",
"[",
"desc",
"]",
"=",
"data",
"# break when eol triggered",
"if",
"not",
"kind",
":",
"break",
"# get padding",
"if",
"counter",
"<",
"size",
":",
"len_",
"=",
"size",
"-",
"counter",
"self",
".",
"_read_binary",
"(",
"len_",
")",
"return",
"tuple",
"(",
"optkind",
")",
",",
"options"
] | Read IPv4 option list.
Positional arguments:
* size -- int, buffer size
Returns:
* tuple -- IPv4 option list
* dict -- extracted IPv4 option | [
"Read",
"IPv4",
"option",
"list",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ipv4.py#L312-L382 |
1,242 | JarryShaw/PyPCAPKit | src/protocols/internet/ipv4.py | IPv4._read_mode_route | def _read_mode_route(self, size, kind):
"""Read options with route data.
Positional arguments:
* size - int, length of option
* kind - int, 7/131/137 (RR/LSR/SSR)
Returns:
* dict -- extracted option with route data
Structure of these options:
* [RFC 791] Loose Source Route
+--------+--------+--------+---------//--------+
|10000011| length | pointer| route data |
+--------+--------+--------+---------//--------+
* [RFC 791] Strict Source Route
+--------+--------+--------+---------//--------+
|10001001| length | pointer| route data |
+--------+--------+--------+---------//--------+
* [RFC 791] Record Route
+--------+--------+--------+---------//--------+
|00000111| length | pointer| route data |
+--------+--------+--------+---------//--------+
Octets Bits Name Description
0 0 ip.opt.kind Kind (7/131/137)
0 0 ip.opt.type.copy Copied Flag (0)
0 1 ip.opt.type.class Option Class (0/1)
0 3 ip.opt.type.number Option Number (3/7/9)
1 8 ip.opt.length Length
2 16 ip.opt.pointer Pointer (≥4)
3 24 ip.opt.data Route Data
"""
if size < 3 or (size - 3) % 4 != 0:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_rptr = self._read_unpack(1)
if _rptr < 4:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
data = dict(
kind=kind,
type=self._read_opt_type(kind),
length=size,
pointer=_rptr,
)
counter = 4
address = list()
endpoint = min(_rptr, size)
while counter < endpoint:
counter += 4
address.append(self._read_ipv4_addr())
data['ip'] = address or None
return data | python | def _read_mode_route(self, size, kind):
if size < 3 or (size - 3) % 4 != 0:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_rptr = self._read_unpack(1)
if _rptr < 4:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
data = dict(
kind=kind,
type=self._read_opt_type(kind),
length=size,
pointer=_rptr,
)
counter = 4
address = list()
endpoint = min(_rptr, size)
while counter < endpoint:
counter += 4
address.append(self._read_ipv4_addr())
data['ip'] = address or None
return data | [
"def",
"_read_mode_route",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"if",
"size",
"<",
"3",
"or",
"(",
"size",
"-",
"3",
")",
"%",
"4",
"!=",
"0",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"_rptr",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"_rptr",
"<",
"4",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"type",
"=",
"self",
".",
"_read_opt_type",
"(",
"kind",
")",
",",
"length",
"=",
"size",
",",
"pointer",
"=",
"_rptr",
",",
")",
"counter",
"=",
"4",
"address",
"=",
"list",
"(",
")",
"endpoint",
"=",
"min",
"(",
"_rptr",
",",
"size",
")",
"while",
"counter",
"<",
"endpoint",
":",
"counter",
"+=",
"4",
"address",
".",
"append",
"(",
"self",
".",
"_read_ipv4_addr",
"(",
")",
")",
"data",
"[",
"'ip'",
"]",
"=",
"address",
"or",
"None",
"return",
"data"
] | Read options with route data.
Positional arguments:
* size - int, length of option
* kind - int, 7/131/137 (RR/LSR/SSR)
Returns:
* dict -- extracted option with route data
Structure of these options:
* [RFC 791] Loose Source Route
+--------+--------+--------+---------//--------+
|10000011| length | pointer| route data |
+--------+--------+--------+---------//--------+
* [RFC 791] Strict Source Route
+--------+--------+--------+---------//--------+
|10001001| length | pointer| route data |
+--------+--------+--------+---------//--------+
* [RFC 791] Record Route
+--------+--------+--------+---------//--------+
|00000111| length | pointer| route data |
+--------+--------+--------+---------//--------+
Octets Bits Name Description
0 0 ip.opt.kind Kind (7/131/137)
0 0 ip.opt.type.copy Copied Flag (0)
0 1 ip.opt.type.class Option Class (0/1)
0 3 ip.opt.type.number Option Number (3/7/9)
1 8 ip.opt.length Length
2 16 ip.opt.pointer Pointer (≥4)
3 24 ip.opt.data Route Data | [
"Read",
"options",
"with",
"route",
"data",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ipv4.py#L448-L505 |
1,243 | JarryShaw/PyPCAPKit | src/protocols/internet/ipv4.py | IPv4._read_mode_qs | def _read_mode_qs(self, size, kind):
"""Read Quick Start option.
Positional arguments:
* size - int, length of option
* kind - int, 25 (QS)
Returns:
* dict -- extracted Quick Start (QS) option
Structure of Quick-Start (QS) option [RFC 4782]:
* A Quick-Start Request.
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option | Length=8 | Func. | Rate | QS TTL |
| | | 0000 |Request| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| QS Nonce | R |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* Report of Approved Rate.
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option | Length=8 | Func. | Rate | Not Used |
| | | 1000 | Report| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| QS Nonce | R |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 ip.qs.kind Kind (25)
0 0 ip.qs.type.copy Copied Flag (0)
0 1 ip.qs.type.class Option Class (0)
0 3 ip.qs.type.number Option Number (25)
1 8 ip.qs.length Length (8)
2 16 ip.qs.func Function (0/8)
2 20 ip.qs.rate Rate Request / Report (in Kbps)
3 24 ip.qs.ttl QS TTL / None
4 32 ip.qs.nounce QS Nounce
7 62 - Reserved (\x00\x00)
"""
if size != 8:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_type = self._read_opt_type(kind)
_fcrr = self._read_binary(1)
_func = int(_fcrr[:4], base=2)
_rate = int(_fcrr[4:], base=2)
_ttlv = self._read_unpack(1)
_nonr = self._read_binary(4)
_qsnn = int(_nonr[:30], base=2)
if _func != 0 and _func != 8:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
data = dict(
kind=kind,
type=_type,
length=size,
func=QS_FUNC.get(_func),
rate=40000 * (2 ** _rate) / 1000,
ttl=None if _func else _rate,
nounce=_qsnn,
)
return data | python | def _read_mode_qs(self, size, kind):
if size != 8:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_type = self._read_opt_type(kind)
_fcrr = self._read_binary(1)
_func = int(_fcrr[:4], base=2)
_rate = int(_fcrr[4:], base=2)
_ttlv = self._read_unpack(1)
_nonr = self._read_binary(4)
_qsnn = int(_nonr[:30], base=2)
if _func != 0 and _func != 8:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
data = dict(
kind=kind,
type=_type,
length=size,
func=QS_FUNC.get(_func),
rate=40000 * (2 ** _rate) / 1000,
ttl=None if _func else _rate,
nounce=_qsnn,
)
return data | [
"def",
"_read_mode_qs",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"if",
"size",
"!=",
"8",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"kind",
")",
"_fcrr",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"_func",
"=",
"int",
"(",
"_fcrr",
"[",
":",
"4",
"]",
",",
"base",
"=",
"2",
")",
"_rate",
"=",
"int",
"(",
"_fcrr",
"[",
"4",
":",
"]",
",",
"base",
"=",
"2",
")",
"_ttlv",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_nonr",
"=",
"self",
".",
"_read_binary",
"(",
"4",
")",
"_qsnn",
"=",
"int",
"(",
"_nonr",
"[",
":",
"30",
"]",
",",
"base",
"=",
"2",
")",
"if",
"_func",
"!=",
"0",
"and",
"_func",
"!=",
"8",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"size",
",",
"func",
"=",
"QS_FUNC",
".",
"get",
"(",
"_func",
")",
",",
"rate",
"=",
"40000",
"*",
"(",
"2",
"**",
"_rate",
")",
"/",
"1000",
",",
"ttl",
"=",
"None",
"if",
"_func",
"else",
"_rate",
",",
"nounce",
"=",
"_qsnn",
",",
")",
"return",
"data"
] | Read Quick Start option.
Positional arguments:
* size - int, length of option
* kind - int, 25 (QS)
Returns:
* dict -- extracted Quick Start (QS) option
Structure of Quick-Start (QS) option [RFC 4782]:
* A Quick-Start Request.
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option | Length=8 | Func. | Rate | QS TTL |
| | | 0000 |Request| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| QS Nonce | R |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* Report of Approved Rate.
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option | Length=8 | Func. | Rate | Not Used |
| | | 1000 | Report| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| QS Nonce | R |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 ip.qs.kind Kind (25)
0 0 ip.qs.type.copy Copied Flag (0)
0 1 ip.qs.type.class Option Class (0)
0 3 ip.qs.type.number Option Number (25)
1 8 ip.qs.length Length (8)
2 16 ip.qs.func Function (0/8)
2 20 ip.qs.rate Rate Request / Report (in Kbps)
3 24 ip.qs.ttl QS TTL / None
4 32 ip.qs.nounce QS Nounce
7 62 - Reserved (\x00\x00) | [
"Read",
"Quick",
"Start",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ipv4.py#L507-L574 |
1,244 | JarryShaw/PyPCAPKit | src/protocols/internet/ipv4.py | IPv4._read_mode_ts | def _read_mode_ts(self, size, kind):
"""Read Time Stamp option.
Positional arguments:
* size - int, length of option
* kind - int, 68 (TS)
Returns:
* dict -- extracted Time Stamp (TS) option
Structure of Timestamp (TS) option [RFC 791]:
+--------+--------+--------+--------+
|01000100| length | pointer|oflw|flg|
+--------+--------+--------+--------+
| internet address |
+--------+--------+--------+--------+
| timestamp |
+--------+--------+--------+--------+
| . |
.
.
Octets Bits Name Description
0 0 ip.ts.kind Kind (25)
0 0 ip.ts.type.copy Copied Flag (0)
0 1 ip.ts.type.class Option Class (0)
0 3 ip.ts.type.number Option Number (25)
1 8 ip.ts.length Length (≤40)
2 16 ip.ts.pointer Pointer (≥5)
3 24 ip.ts.overflow Overflow Octets
3 28 ip.ts.flag Flag
4 32 ip.ts.ip Internet Address
8 64 ip.ts.timestamp Timestamp
"""
if size > 40 or size < 4:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_tptr = self._read_unpack(1)
_oflg = self._read_binary(1)
_oflw = int(_oflg[:4], base=2)
_flag = int(_oflg[4:], base=2)
if _tptr < 5:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
data = dict(
kind=kind,
type=self._read_opt_type(kind),
length=size,
pointer=_tptr,
overflow=_oflw,
flag=_flag,
)
endpoint = min(_tptr, size)
if _flag == 0:
if (size - 4) % 4 != 0:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
counter = 5
timestamp = list()
while counter < endpoint:
counter += 4
time = self._read_unpack(4, lilendian=True)
timestamp.append(datetime.datetime.fromtimestamp(time))
data['timestamp'] = timestamp or None
elif _flag == 1 or _flag == 3:
if (size - 4) % 8 != 0:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
counter = 5
ipaddress = list()
timestamp = list()
while counter < endpoint:
counter += 8
ipaddress.append(self._read_ipv4_addr())
time = self._read_unpack(4, lilendian=True)
timestamp.append(datetime.datetime.fromtimestamp(time))
data['ip'] = ipaddress or None
data['timestamp'] = timestamp or None
else:
data['data'] = self._read_fileng(size - 4) or None
return data | python | def _read_mode_ts(self, size, kind):
if size > 40 or size < 4:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_tptr = self._read_unpack(1)
_oflg = self._read_binary(1)
_oflw = int(_oflg[:4], base=2)
_flag = int(_oflg[4:], base=2)
if _tptr < 5:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
data = dict(
kind=kind,
type=self._read_opt_type(kind),
length=size,
pointer=_tptr,
overflow=_oflw,
flag=_flag,
)
endpoint = min(_tptr, size)
if _flag == 0:
if (size - 4) % 4 != 0:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
counter = 5
timestamp = list()
while counter < endpoint:
counter += 4
time = self._read_unpack(4, lilendian=True)
timestamp.append(datetime.datetime.fromtimestamp(time))
data['timestamp'] = timestamp or None
elif _flag == 1 or _flag == 3:
if (size - 4) % 8 != 0:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
counter = 5
ipaddress = list()
timestamp = list()
while counter < endpoint:
counter += 8
ipaddress.append(self._read_ipv4_addr())
time = self._read_unpack(4, lilendian=True)
timestamp.append(datetime.datetime.fromtimestamp(time))
data['ip'] = ipaddress or None
data['timestamp'] = timestamp or None
else:
data['data'] = self._read_fileng(size - 4) or None
return data | [
"def",
"_read_mode_ts",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"if",
"size",
">",
"40",
"or",
"size",
"<",
"4",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"_tptr",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_oflg",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"_oflw",
"=",
"int",
"(",
"_oflg",
"[",
":",
"4",
"]",
",",
"base",
"=",
"2",
")",
"_flag",
"=",
"int",
"(",
"_oflg",
"[",
"4",
":",
"]",
",",
"base",
"=",
"2",
")",
"if",
"_tptr",
"<",
"5",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"type",
"=",
"self",
".",
"_read_opt_type",
"(",
"kind",
")",
",",
"length",
"=",
"size",
",",
"pointer",
"=",
"_tptr",
",",
"overflow",
"=",
"_oflw",
",",
"flag",
"=",
"_flag",
",",
")",
"endpoint",
"=",
"min",
"(",
"_tptr",
",",
"size",
")",
"if",
"_flag",
"==",
"0",
":",
"if",
"(",
"size",
"-",
"4",
")",
"%",
"4",
"!=",
"0",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"counter",
"=",
"5",
"timestamp",
"=",
"list",
"(",
")",
"while",
"counter",
"<",
"endpoint",
":",
"counter",
"+=",
"4",
"time",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
",",
"lilendian",
"=",
"True",
")",
"timestamp",
".",
"append",
"(",
"datetime",
".",
"datetime",
".",
"fromtimestamp",
"(",
"time",
")",
")",
"data",
"[",
"'timestamp'",
"]",
"=",
"timestamp",
"or",
"None",
"elif",
"_flag",
"==",
"1",
"or",
"_flag",
"==",
"3",
":",
"if",
"(",
"size",
"-",
"4",
")",
"%",
"8",
"!=",
"0",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"counter",
"=",
"5",
"ipaddress",
"=",
"list",
"(",
")",
"timestamp",
"=",
"list",
"(",
")",
"while",
"counter",
"<",
"endpoint",
":",
"counter",
"+=",
"8",
"ipaddress",
".",
"append",
"(",
"self",
".",
"_read_ipv4_addr",
"(",
")",
")",
"time",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
",",
"lilendian",
"=",
"True",
")",
"timestamp",
".",
"append",
"(",
"datetime",
".",
"datetime",
".",
"fromtimestamp",
"(",
"time",
")",
")",
"data",
"[",
"'ip'",
"]",
"=",
"ipaddress",
"or",
"None",
"data",
"[",
"'timestamp'",
"]",
"=",
"timestamp",
"or",
"None",
"else",
":",
"data",
"[",
"'data'",
"]",
"=",
"self",
".",
"_read_fileng",
"(",
"size",
"-",
"4",
")",
"or",
"None",
"return",
"data"
] | Read Time Stamp option.
Positional arguments:
* size - int, length of option
* kind - int, 68 (TS)
Returns:
* dict -- extracted Time Stamp (TS) option
Structure of Timestamp (TS) option [RFC 791]:
+--------+--------+--------+--------+
|01000100| length | pointer|oflw|flg|
+--------+--------+--------+--------+
| internet address |
+--------+--------+--------+--------+
| timestamp |
+--------+--------+--------+--------+
| . |
.
.
Octets Bits Name Description
0 0 ip.ts.kind Kind (25)
0 0 ip.ts.type.copy Copied Flag (0)
0 1 ip.ts.type.class Option Class (0)
0 3 ip.ts.type.number Option Number (25)
1 8 ip.ts.length Length (≤40)
2 16 ip.ts.pointer Pointer (≥5)
3 24 ip.ts.overflow Overflow Octets
3 28 ip.ts.flag Flag
4 32 ip.ts.ip Internet Address
8 64 ip.ts.timestamp Timestamp | [
"Read",
"Time",
"Stamp",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ipv4.py#L576-L658 |
1,245 | JarryShaw/PyPCAPKit | src/protocols/internet/ipv4.py | IPv4._read_mode_tr | def _read_mode_tr(self, size, kind):
"""Read Traceroute option.
Positional arguments:
size - int, length of option
kind - int, 82 (TR)
Returns:
* dict -- extracted Traceroute (TR) option
Structure of Traceroute (TR) option [RFC 1393][RFC 6814]:
0 8 16 24
+-+-+-+-+-+-+-+-+---------------+---------------+---------------+
|F| C | Number | Length | ID Number |
+-+-+-+-+-+-+-+-+---------------+---------------+---------------+
| Outbound Hop Count | Return Hop Count |
+---------------+---------------+---------------+---------------+
| Originator IP Address |
+---------------+---------------+---------------+---------------+
Octets Bits Name Description
0 0 ip.tr.kind Kind (82)
0 0 ip.tr.type.copy Copied Flag (0)
0 1 ip.tr.type.class Option Class (0)
0 3 ip.tr.type.number Option Number (18)
1 8 ip.tr.length Length (12)
2 16 ip.tr.id ID Number
4 32 ip.tr.ohc Outbound Hop Count
6 48 ip.tr.rhc Return Hop Count
8 64 ip.tr.ip Originator IP Address
"""
if size != 12:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_idnm = self._read_unpack(2)
_ohcn = self._read_unpack(2)
_rhcn = self._read_unpack(2)
_ipad = self._read_ipv4_addr()
data = dict(
kind=kind,
type=self._read_opt_type(kind),
length=size,
id=_idnm,
ohc=_ohcn,
rhc=_rhcn,
ip=_ipad,
)
return data | python | def _read_mode_tr(self, size, kind):
if size != 12:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_idnm = self._read_unpack(2)
_ohcn = self._read_unpack(2)
_rhcn = self._read_unpack(2)
_ipad = self._read_ipv4_addr()
data = dict(
kind=kind,
type=self._read_opt_type(kind),
length=size,
id=_idnm,
ohc=_ohcn,
rhc=_rhcn,
ip=_ipad,
)
return data | [
"def",
"_read_mode_tr",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"if",
"size",
"!=",
"12",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"_idnm",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"_ohcn",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"_rhcn",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"_ipad",
"=",
"self",
".",
"_read_ipv4_addr",
"(",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"type",
"=",
"self",
".",
"_read_opt_type",
"(",
"kind",
")",
",",
"length",
"=",
"size",
",",
"id",
"=",
"_idnm",
",",
"ohc",
"=",
"_ohcn",
",",
"rhc",
"=",
"_rhcn",
",",
"ip",
"=",
"_ipad",
",",
")",
"return",
"data"
] | Read Traceroute option.
Positional arguments:
size - int, length of option
kind - int, 82 (TR)
Returns:
* dict -- extracted Traceroute (TR) option
Structure of Traceroute (TR) option [RFC 1393][RFC 6814]:
0 8 16 24
+-+-+-+-+-+-+-+-+---------------+---------------+---------------+
|F| C | Number | Length | ID Number |
+-+-+-+-+-+-+-+-+---------------+---------------+---------------+
| Outbound Hop Count | Return Hop Count |
+---------------+---------------+---------------+---------------+
| Originator IP Address |
+---------------+---------------+---------------+---------------+
Octets Bits Name Description
0 0 ip.tr.kind Kind (82)
0 0 ip.tr.type.copy Copied Flag (0)
0 1 ip.tr.type.class Option Class (0)
0 3 ip.tr.type.number Option Number (18)
1 8 ip.tr.length Length (12)
2 16 ip.tr.id ID Number
4 32 ip.tr.ohc Outbound Hop Count
6 48 ip.tr.rhc Return Hop Count
8 64 ip.tr.ip Originator IP Address | [
"Read",
"Traceroute",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ipv4.py#L660-L710 |
1,246 | JarryShaw/PyPCAPKit | src/protocols/internet/ipv4.py | IPv4._read_mode_sec | def _read_mode_sec(self, size, kind):
"""Read options with security info.
Positional arguments:
size - int, length of option
kind - int, 130 (SEC )/ 133 (ESEC)
Returns:
* dict -- extracted option with security info (E/SEC)
Structure of these options:
* [RFC 1108] Security (SEC)
+------------+------------+------------+-------------//----------+
| 10000010 | XXXXXXXX | SSSSSSSS | AAAAAAA[1] AAAAAAA0 |
| | | | [0] |
+------------+------------+------------+-------------//----------+
TYPE = 130 LENGTH CLASSIFICATION PROTECTION
LEVEL AUTHORITY
FLAGS
* [RFC 1108] Extended Security (ESEC):
+------------+------------+------------+-------//-------+
| 10000101 | 000LLLLL | AAAAAAAA | add sec info |
+------------+------------+------------+-------//-------+
TYPE = 133 LENGTH ADDITIONAL ADDITIONAL
SECURITY INFO SECURITY
FORMAT CODE INFO
Octets Bits Name Description
0 0 ip.sec.kind Kind (130)
0 0 ip.sec.type.copy Copied Flag (1)
0 1 ip.sec.type.class Option Class (0)
0 3 ip.sec.type.number Option Number (2)
1 8 ip.sec.length Length (≥3)
2 16 ip.sec.level Classification Level
3 24 ip.sec.flags Protection Authority Flags
"""
if size < 3:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_clvl = self._read_unpack(1)
data = dict(
kind=kind,
type=self._read_opt_type(kind),
length=size,
level=_CLASSIFICATION_LEVEL.get(_clvl, _clvl),
)
if size > 3:
_list = list()
for counter in range(3, size):
_flag = self._read_binary(1)
if (counter < size - 1 and not int(_flag[7], base=2)) \
or (counter == size - 1 and int(_flag[7], base=2)):
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_dict = dict()
for (index, bit) in enumerate(_flag[:5]):
_auth = _PROTECTION_AUTHORITY.get(index)
_dict[_auth] = True if int(bit, base=2) else False
_list.append(Info(_dict))
data['flags'] = tuple(_list)
return data | python | def _read_mode_sec(self, size, kind):
if size < 3:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_clvl = self._read_unpack(1)
data = dict(
kind=kind,
type=self._read_opt_type(kind),
length=size,
level=_CLASSIFICATION_LEVEL.get(_clvl, _clvl),
)
if size > 3:
_list = list()
for counter in range(3, size):
_flag = self._read_binary(1)
if (counter < size - 1 and not int(_flag[7], base=2)) \
or (counter == size - 1 and int(_flag[7], base=2)):
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_dict = dict()
for (index, bit) in enumerate(_flag[:5]):
_auth = _PROTECTION_AUTHORITY.get(index)
_dict[_auth] = True if int(bit, base=2) else False
_list.append(Info(_dict))
data['flags'] = tuple(_list)
return data | [
"def",
"_read_mode_sec",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"if",
"size",
"<",
"3",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"_clvl",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"type",
"=",
"self",
".",
"_read_opt_type",
"(",
"kind",
")",
",",
"length",
"=",
"size",
",",
"level",
"=",
"_CLASSIFICATION_LEVEL",
".",
"get",
"(",
"_clvl",
",",
"_clvl",
")",
",",
")",
"if",
"size",
">",
"3",
":",
"_list",
"=",
"list",
"(",
")",
"for",
"counter",
"in",
"range",
"(",
"3",
",",
"size",
")",
":",
"_flag",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"if",
"(",
"counter",
"<",
"size",
"-",
"1",
"and",
"not",
"int",
"(",
"_flag",
"[",
"7",
"]",
",",
"base",
"=",
"2",
")",
")",
"or",
"(",
"counter",
"==",
"size",
"-",
"1",
"and",
"int",
"(",
"_flag",
"[",
"7",
"]",
",",
"base",
"=",
"2",
")",
")",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"_dict",
"=",
"dict",
"(",
")",
"for",
"(",
"index",
",",
"bit",
")",
"in",
"enumerate",
"(",
"_flag",
"[",
":",
"5",
"]",
")",
":",
"_auth",
"=",
"_PROTECTION_AUTHORITY",
".",
"get",
"(",
"index",
")",
"_dict",
"[",
"_auth",
"]",
"=",
"True",
"if",
"int",
"(",
"bit",
",",
"base",
"=",
"2",
")",
"else",
"False",
"_list",
".",
"append",
"(",
"Info",
"(",
"_dict",
")",
")",
"data",
"[",
"'flags'",
"]",
"=",
"tuple",
"(",
"_list",
")",
"return",
"data"
] | Read options with security info.
Positional arguments:
size - int, length of option
kind - int, 130 (SEC )/ 133 (ESEC)
Returns:
* dict -- extracted option with security info (E/SEC)
Structure of these options:
* [RFC 1108] Security (SEC)
+------------+------------+------------+-------------//----------+
| 10000010 | XXXXXXXX | SSSSSSSS | AAAAAAA[1] AAAAAAA0 |
| | | | [0] |
+------------+------------+------------+-------------//----------+
TYPE = 130 LENGTH CLASSIFICATION PROTECTION
LEVEL AUTHORITY
FLAGS
* [RFC 1108] Extended Security (ESEC):
+------------+------------+------------+-------//-------+
| 10000101 | 000LLLLL | AAAAAAAA | add sec info |
+------------+------------+------------+-------//-------+
TYPE = 133 LENGTH ADDITIONAL ADDITIONAL
SECURITY INFO SECURITY
FORMAT CODE INFO
Octets Bits Name Description
0 0 ip.sec.kind Kind (130)
0 0 ip.sec.type.copy Copied Flag (1)
0 1 ip.sec.type.class Option Class (0)
0 3 ip.sec.type.number Option Number (2)
1 8 ip.sec.length Length (≥3)
2 16 ip.sec.level Classification Level
3 24 ip.sec.flags Protection Authority Flags | [
"Read",
"options",
"with",
"security",
"info",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ipv4.py#L712-L776 |
1,247 | JarryShaw/PyPCAPKit | src/protocols/internet/ipv4.py | IPv4._read_mode_rsralt | def _read_mode_rsralt(self, size, kind):
"""Read Router Alert option.
Positional arguments:
size - int, length of option
kind - int, 148 (RTRALT)
Returns:
* dict -- extracted Router Alert (RTRALT) option
Structure of Router Alert (RTRALT) option [RFC 2113]:
+--------+--------+--------+--------+
|10010100|00000100| 2 octet value |
+--------+--------+--------+--------+
Octets Bits Name Description
0 0 ip.rsralt.kind Kind (148)
0 0 ip.rsralt.type.copy Copied Flag (1)
0 1 ip.rsralt.type.class Option Class (0)
0 3 ip.rsralt.type.number Option Number (20)
1 8 ip.rsralt.length Length (4)
2 16 ip.rsralt.alert Alert
2 16 ip.rsralt.code Alert Code
"""
if size != 4:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_code = self._read_unpack(2)
data = dict(
kind=kind,
type=self._read_opt_type(kind),
length=size,
alert=_ROUTER_ALERT.get(_code, 'Reserved'),
code=_code,
)
return data | python | def _read_mode_rsralt(self, size, kind):
if size != 4:
raise ProtocolError(f'{self.alias}: [Optno {kind}] invalid format')
_code = self._read_unpack(2)
data = dict(
kind=kind,
type=self._read_opt_type(kind),
length=size,
alert=_ROUTER_ALERT.get(_code, 'Reserved'),
code=_code,
)
return data | [
"def",
"_read_mode_rsralt",
"(",
"self",
",",
"size",
",",
"kind",
")",
":",
"if",
"size",
"!=",
"4",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {kind}] invalid format'",
")",
"_code",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"data",
"=",
"dict",
"(",
"kind",
"=",
"kind",
",",
"type",
"=",
"self",
".",
"_read_opt_type",
"(",
"kind",
")",
",",
"length",
"=",
"size",
",",
"alert",
"=",
"_ROUTER_ALERT",
".",
"get",
"(",
"_code",
",",
"'Reserved'",
")",
",",
"code",
"=",
"_code",
",",
")",
"return",
"data"
] | Read Router Alert option.
Positional arguments:
size - int, length of option
kind - int, 148 (RTRALT)
Returns:
* dict -- extracted Router Alert (RTRALT) option
Structure of Router Alert (RTRALT) option [RFC 2113]:
+--------+--------+--------+--------+
|10010100|00000100| 2 octet value |
+--------+--------+--------+--------+
Octets Bits Name Description
0 0 ip.rsralt.kind Kind (148)
0 0 ip.rsralt.type.copy Copied Flag (1)
0 1 ip.rsralt.type.class Option Class (0)
0 3 ip.rsralt.type.number Option Number (20)
1 8 ip.rsralt.length Length (4)
2 16 ip.rsralt.alert Alert
2 16 ip.rsralt.code Alert Code | [
"Read",
"Router",
"Alert",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ipv4.py#L778-L816 |
1,248 | JarryShaw/PyPCAPKit | src/protocols/pcap/header.py | Header.read_header | def read_header(self):
"""Read global header of PCAP file.
Structure of global header (C):
typedef struct pcap_hdr_s {
guint32 magic_number; /* magic number */
guint16 version_major; /* major version number */
guint16 version_minor; /* minor version number */
gint32 thiszone; /* GMT to local correction */
guint32 sigfigs; /* accuracy of timestamps */
guint32 snaplen; /* max length of captured packets, in octets */
guint32 network; /* data link type */
} pcap_hdr_t;
"""
_magn = self._read_fileng(4)
if _magn == b'\xd4\xc3\xb2\xa1':
lilendian = True
self._nsec = False
self._byte = 'little'
elif _magn == b'\xa1\xb2\xc3\xd4':
lilendian = False
self._nsec = False
self._byte = 'big'
elif _magn == b'\x4d\x3c\xb2\xa1':
lilendian = True
self._nsec = True
self._byte = 'little'
elif _magn == b'\xa1\xb2\x3c\x4d':
lilendian = False
self._nsec = True
self._byte = 'big'
else:
raise FileError(5, 'Unknown file format', self._file.name)
_vmaj = self._read_unpack(2, lilendian=lilendian)
_vmin = self._read_unpack(2, lilendian=lilendian)
_zone = self._read_unpack(4, lilendian=lilendian, signed=True)
_acts = self._read_unpack(4, lilendian=lilendian)
_slen = self._read_unpack(4, lilendian=lilendian)
_type = self._read_protos(4)
_byte = self._read_packet(24)
self._file = io.BytesIO(_byte)
header = dict(
magic_number=dict(
data=_magn,
byteorder=self._byte,
nanosecond=self._nsec,
),
version_major=_vmaj,
version_minor=_vmin,
thiszone=_zone,
sigfigs=_acts,
snaplen=_slen,
network=_type,
packet=_byte,
)
return header | python | def read_header(self):
_magn = self._read_fileng(4)
if _magn == b'\xd4\xc3\xb2\xa1':
lilendian = True
self._nsec = False
self._byte = 'little'
elif _magn == b'\xa1\xb2\xc3\xd4':
lilendian = False
self._nsec = False
self._byte = 'big'
elif _magn == b'\x4d\x3c\xb2\xa1':
lilendian = True
self._nsec = True
self._byte = 'little'
elif _magn == b'\xa1\xb2\x3c\x4d':
lilendian = False
self._nsec = True
self._byte = 'big'
else:
raise FileError(5, 'Unknown file format', self._file.name)
_vmaj = self._read_unpack(2, lilendian=lilendian)
_vmin = self._read_unpack(2, lilendian=lilendian)
_zone = self._read_unpack(4, lilendian=lilendian, signed=True)
_acts = self._read_unpack(4, lilendian=lilendian)
_slen = self._read_unpack(4, lilendian=lilendian)
_type = self._read_protos(4)
_byte = self._read_packet(24)
self._file = io.BytesIO(_byte)
header = dict(
magic_number=dict(
data=_magn,
byteorder=self._byte,
nanosecond=self._nsec,
),
version_major=_vmaj,
version_minor=_vmin,
thiszone=_zone,
sigfigs=_acts,
snaplen=_slen,
network=_type,
packet=_byte,
)
return header | [
"def",
"read_header",
"(",
"self",
")",
":",
"_magn",
"=",
"self",
".",
"_read_fileng",
"(",
"4",
")",
"if",
"_magn",
"==",
"b'\\xd4\\xc3\\xb2\\xa1'",
":",
"lilendian",
"=",
"True",
"self",
".",
"_nsec",
"=",
"False",
"self",
".",
"_byte",
"=",
"'little'",
"elif",
"_magn",
"==",
"b'\\xa1\\xb2\\xc3\\xd4'",
":",
"lilendian",
"=",
"False",
"self",
".",
"_nsec",
"=",
"False",
"self",
".",
"_byte",
"=",
"'big'",
"elif",
"_magn",
"==",
"b'\\x4d\\x3c\\xb2\\xa1'",
":",
"lilendian",
"=",
"True",
"self",
".",
"_nsec",
"=",
"True",
"self",
".",
"_byte",
"=",
"'little'",
"elif",
"_magn",
"==",
"b'\\xa1\\xb2\\x3c\\x4d'",
":",
"lilendian",
"=",
"False",
"self",
".",
"_nsec",
"=",
"True",
"self",
".",
"_byte",
"=",
"'big'",
"else",
":",
"raise",
"FileError",
"(",
"5",
",",
"'Unknown file format'",
",",
"self",
".",
"_file",
".",
"name",
")",
"_vmaj",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
",",
"lilendian",
"=",
"lilendian",
")",
"_vmin",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
",",
"lilendian",
"=",
"lilendian",
")",
"_zone",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
",",
"lilendian",
"=",
"lilendian",
",",
"signed",
"=",
"True",
")",
"_acts",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
",",
"lilendian",
"=",
"lilendian",
")",
"_slen",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
",",
"lilendian",
"=",
"lilendian",
")",
"_type",
"=",
"self",
".",
"_read_protos",
"(",
"4",
")",
"_byte",
"=",
"self",
".",
"_read_packet",
"(",
"24",
")",
"self",
".",
"_file",
"=",
"io",
".",
"BytesIO",
"(",
"_byte",
")",
"header",
"=",
"dict",
"(",
"magic_number",
"=",
"dict",
"(",
"data",
"=",
"_magn",
",",
"byteorder",
"=",
"self",
".",
"_byte",
",",
"nanosecond",
"=",
"self",
".",
"_nsec",
",",
")",
",",
"version_major",
"=",
"_vmaj",
",",
"version_minor",
"=",
"_vmin",
",",
"thiszone",
"=",
"_zone",
",",
"sigfigs",
"=",
"_acts",
",",
"snaplen",
"=",
"_slen",
",",
"network",
"=",
"_type",
",",
"packet",
"=",
"_byte",
",",
")",
"return",
"header"
] | Read global header of PCAP file.
Structure of global header (C):
typedef struct pcap_hdr_s {
guint32 magic_number; /* magic number */
guint16 version_major; /* major version number */
guint16 version_minor; /* minor version number */
gint32 thiszone; /* GMT to local correction */
guint32 sigfigs; /* accuracy of timestamps */
guint32 snaplen; /* max length of captured packets, in octets */
guint32 network; /* data link type */
} pcap_hdr_t; | [
"Read",
"global",
"header",
"of",
"PCAP",
"file",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/pcap/header.py#L110-L170 |
1,249 | JarryShaw/PyPCAPKit | src/protocols/pcap/frame.py | Frame.read_frame | def read_frame(self):
"""Read each block after global header.
Structure of record/package header (C):
typedef struct pcaprec_hdr_s {
guint32 ts_sec; /* timestamp seconds */
guint32 ts_usec; /* timestamp microseconds */
guint32 incl_len; /* number of octets of packet saved in file */
guint32 orig_len; /* actual length of packet */
} pcaprec_hdr_t;
"""
# _scur = self._file.tell()
_temp = self._read_unpack(4, lilendian=True, quiet=True)
if _temp is None:
raise EOFError
_tsss = _temp
_tsus = self._read_unpack(4, lilendian=True)
_ilen = self._read_unpack(4, lilendian=True)
_olen = self._read_unpack(4, lilendian=True)
if self._nsec:
_epch = _tsss + _tsus / 1000000000
else:
_epch = _tsss + _tsus / 1000000
_time = datetime.datetime.fromtimestamp(_epch)
frame = dict(
frame_info=dict(
ts_sec=_tsss,
ts_usec=_tsus,
incl_len=_ilen,
orig_len=_olen,
),
time=_time,
number=self._fnum,
time_epoch=_epch,
len=_ilen,
cap_len=_olen,
)
# load packet data
length = frame['len']
bytes_ = self._file.read(length)
# record file pointer
if self._mpkt and self._mpfp:
# print(self._fnum, 'ready')
self._mpfp.put(self._file.tell())
self._mpkt.pool += 1
# make BytesIO from frame packet data
frame['packet'] = bytes_
self._file = io.BytesIO(bytes_)
# frame['packet'] = self._read_packet(header=0, payload=length, discard=True)
return self._decode_next_layer(frame, length) | python | def read_frame(self):
# _scur = self._file.tell()
_temp = self._read_unpack(4, lilendian=True, quiet=True)
if _temp is None:
raise EOFError
_tsss = _temp
_tsus = self._read_unpack(4, lilendian=True)
_ilen = self._read_unpack(4, lilendian=True)
_olen = self._read_unpack(4, lilendian=True)
if self._nsec:
_epch = _tsss + _tsus / 1000000000
else:
_epch = _tsss + _tsus / 1000000
_time = datetime.datetime.fromtimestamp(_epch)
frame = dict(
frame_info=dict(
ts_sec=_tsss,
ts_usec=_tsus,
incl_len=_ilen,
orig_len=_olen,
),
time=_time,
number=self._fnum,
time_epoch=_epch,
len=_ilen,
cap_len=_olen,
)
# load packet data
length = frame['len']
bytes_ = self._file.read(length)
# record file pointer
if self._mpkt and self._mpfp:
# print(self._fnum, 'ready')
self._mpfp.put(self._file.tell())
self._mpkt.pool += 1
# make BytesIO from frame packet data
frame['packet'] = bytes_
self._file = io.BytesIO(bytes_)
# frame['packet'] = self._read_packet(header=0, payload=length, discard=True)
return self._decode_next_layer(frame, length) | [
"def",
"read_frame",
"(",
"self",
")",
":",
"# _scur = self._file.tell()",
"_temp",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
",",
"lilendian",
"=",
"True",
",",
"quiet",
"=",
"True",
")",
"if",
"_temp",
"is",
"None",
":",
"raise",
"EOFError",
"_tsss",
"=",
"_temp",
"_tsus",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
",",
"lilendian",
"=",
"True",
")",
"_ilen",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
",",
"lilendian",
"=",
"True",
")",
"_olen",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
",",
"lilendian",
"=",
"True",
")",
"if",
"self",
".",
"_nsec",
":",
"_epch",
"=",
"_tsss",
"+",
"_tsus",
"/",
"1000000000",
"else",
":",
"_epch",
"=",
"_tsss",
"+",
"_tsus",
"/",
"1000000",
"_time",
"=",
"datetime",
".",
"datetime",
".",
"fromtimestamp",
"(",
"_epch",
")",
"frame",
"=",
"dict",
"(",
"frame_info",
"=",
"dict",
"(",
"ts_sec",
"=",
"_tsss",
",",
"ts_usec",
"=",
"_tsus",
",",
"incl_len",
"=",
"_ilen",
",",
"orig_len",
"=",
"_olen",
",",
")",
",",
"time",
"=",
"_time",
",",
"number",
"=",
"self",
".",
"_fnum",
",",
"time_epoch",
"=",
"_epch",
",",
"len",
"=",
"_ilen",
",",
"cap_len",
"=",
"_olen",
",",
")",
"# load packet data",
"length",
"=",
"frame",
"[",
"'len'",
"]",
"bytes_",
"=",
"self",
".",
"_file",
".",
"read",
"(",
"length",
")",
"# record file pointer",
"if",
"self",
".",
"_mpkt",
"and",
"self",
".",
"_mpfp",
":",
"# print(self._fnum, 'ready')",
"self",
".",
"_mpfp",
".",
"put",
"(",
"self",
".",
"_file",
".",
"tell",
"(",
")",
")",
"self",
".",
"_mpkt",
".",
"pool",
"+=",
"1",
"# make BytesIO from frame packet data",
"frame",
"[",
"'packet'",
"]",
"=",
"bytes_",
"self",
".",
"_file",
"=",
"io",
".",
"BytesIO",
"(",
"bytes_",
")",
"# frame['packet'] = self._read_packet(header=0, payload=length, discard=True)",
"return",
"self",
".",
"_decode_next_layer",
"(",
"frame",
",",
"length",
")"
] | Read each block after global header.
Structure of record/package header (C):
typedef struct pcaprec_hdr_s {
guint32 ts_sec; /* timestamp seconds */
guint32 ts_usec; /* timestamp microseconds */
guint32 incl_len; /* number of octets of packet saved in file */
guint32 orig_len; /* actual length of packet */
} pcaprec_hdr_t; | [
"Read",
"each",
"block",
"after",
"global",
"header",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/pcap/frame.py#L88-L145 |
1,250 | JarryShaw/PyPCAPKit | src/protocols/pcap/frame.py | Frame._decode_next_layer | def _decode_next_layer(self, dict_, length=None):
"""Decode next layer protocol.
Positional arguments:
dict_ -- dict, info buffer
proto -- str, next layer protocol name
length -- int, valid (not padding) length
Returns:
* dict -- current protocol with packet extracted
"""
seek_cur = self._file.tell()
try:
next_ = self._import_next_layer(self._prot, length)
except Exception:
dict_['error'] = traceback.format_exc(limit=1).strip().split(os.linesep)[-1]
self._file.seek(seek_cur, os.SEEK_SET)
next_ = beholder(self._import_next_layer)(self, self._prot, length, error=True)
info, chain = next_.info, next_.protochain
# make next layer protocol name
layer = next_.alias.lower()
# proto = next_.__class__.__name__
# write info and protocol chain into dict
self._next = next_
self._protos = chain
dict_[layer] = info
dict_['protocols'] = self._protos.chain
return dict_ | python | def _decode_next_layer(self, dict_, length=None):
seek_cur = self._file.tell()
try:
next_ = self._import_next_layer(self._prot, length)
except Exception:
dict_['error'] = traceback.format_exc(limit=1).strip().split(os.linesep)[-1]
self._file.seek(seek_cur, os.SEEK_SET)
next_ = beholder(self._import_next_layer)(self, self._prot, length, error=True)
info, chain = next_.info, next_.protochain
# make next layer protocol name
layer = next_.alias.lower()
# proto = next_.__class__.__name__
# write info and protocol chain into dict
self._next = next_
self._protos = chain
dict_[layer] = info
dict_['protocols'] = self._protos.chain
return dict_ | [
"def",
"_decode_next_layer",
"(",
"self",
",",
"dict_",
",",
"length",
"=",
"None",
")",
":",
"seek_cur",
"=",
"self",
".",
"_file",
".",
"tell",
"(",
")",
"try",
":",
"next_",
"=",
"self",
".",
"_import_next_layer",
"(",
"self",
".",
"_prot",
",",
"length",
")",
"except",
"Exception",
":",
"dict_",
"[",
"'error'",
"]",
"=",
"traceback",
".",
"format_exc",
"(",
"limit",
"=",
"1",
")",
".",
"strip",
"(",
")",
".",
"split",
"(",
"os",
".",
"linesep",
")",
"[",
"-",
"1",
"]",
"self",
".",
"_file",
".",
"seek",
"(",
"seek_cur",
",",
"os",
".",
"SEEK_SET",
")",
"next_",
"=",
"beholder",
"(",
"self",
".",
"_import_next_layer",
")",
"(",
"self",
",",
"self",
".",
"_prot",
",",
"length",
",",
"error",
"=",
"True",
")",
"info",
",",
"chain",
"=",
"next_",
".",
"info",
",",
"next_",
".",
"protochain",
"# make next layer protocol name",
"layer",
"=",
"next_",
".",
"alias",
".",
"lower",
"(",
")",
"# proto = next_.__class__.__name__",
"# write info and protocol chain into dict",
"self",
".",
"_next",
"=",
"next_",
"self",
".",
"_protos",
"=",
"chain",
"dict_",
"[",
"layer",
"]",
"=",
"info",
"dict_",
"[",
"'protocols'",
"]",
"=",
"self",
".",
"_protos",
".",
"chain",
"return",
"dict_"
] | Decode next layer protocol.
Positional arguments:
dict_ -- dict, info buffer
proto -- str, next layer protocol name
length -- int, valid (not padding) length
Returns:
* dict -- current protocol with packet extracted | [
"Decode",
"next",
"layer",
"protocol",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/pcap/frame.py#L229-L259 |
1,251 | JarryShaw/PyPCAPKit | src/protocols/raw.py | Raw.read_raw | def read_raw(self, length, *, error=None):
"""Read raw packet data."""
if length is None:
length = len(self)
raw = dict(
packet=self._read_fileng(length),
error=error or None,
)
return raw | python | def read_raw(self, length, *, error=None):
if length is None:
length = len(self)
raw = dict(
packet=self._read_fileng(length),
error=error or None,
)
return raw | [
"def",
"read_raw",
"(",
"self",
",",
"length",
",",
"*",
",",
"error",
"=",
"None",
")",
":",
"if",
"length",
"is",
"None",
":",
"length",
"=",
"len",
"(",
"self",
")",
"raw",
"=",
"dict",
"(",
"packet",
"=",
"self",
".",
"_read_fileng",
"(",
"length",
")",
",",
"error",
"=",
"error",
"or",
"None",
",",
")",
"return",
"raw"
] | Read raw packet data. | [
"Read",
"raw",
"packet",
"data",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/raw.py#L73-L83 |
1,252 | JarryShaw/PyPCAPKit | src/toolkit/dpkt.py | ipv6_hdr_len | def ipv6_hdr_len(ipv6):
"""Calculate length of headers before IPv6-Frag"""
hdr_len = ipv6.__hdr_len__
for code in (0, 60, 43):
ext_hdr = ipv6.extension_hdrs.get(code)
if ext_hdr is not None:
hdr_len += ext_hdr.length
return hdr_len | python | def ipv6_hdr_len(ipv6):
hdr_len = ipv6.__hdr_len__
for code in (0, 60, 43):
ext_hdr = ipv6.extension_hdrs.get(code)
if ext_hdr is not None:
hdr_len += ext_hdr.length
return hdr_len | [
"def",
"ipv6_hdr_len",
"(",
"ipv6",
")",
":",
"hdr_len",
"=",
"ipv6",
".",
"__hdr_len__",
"for",
"code",
"in",
"(",
"0",
",",
"60",
",",
"43",
")",
":",
"ext_hdr",
"=",
"ipv6",
".",
"extension_hdrs",
".",
"get",
"(",
"code",
")",
"if",
"ext_hdr",
"is",
"not",
"None",
":",
"hdr_len",
"+=",
"ext_hdr",
".",
"length",
"return",
"hdr_len"
] | Calculate length of headers before IPv6-Frag | [
"Calculate",
"length",
"of",
"headers",
"before",
"IPv6",
"-",
"Frag"
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/toolkit/dpkt.py#L20-L27 |
1,253 | JarryShaw/PyPCAPKit | src/toolkit/dpkt.py | packet2chain | def packet2chain(packet):
"""Fetch DPKT packet protocol chain."""
chain = [type(packet).__name__]
payload = packet.data
while not isinstance(payload, bytes):
chain.append(type(payload).__name__)
payload = payload.data
return ':'.join(chain) | python | def packet2chain(packet):
chain = [type(packet).__name__]
payload = packet.data
while not isinstance(payload, bytes):
chain.append(type(payload).__name__)
payload = payload.data
return ':'.join(chain) | [
"def",
"packet2chain",
"(",
"packet",
")",
":",
"chain",
"=",
"[",
"type",
"(",
"packet",
")",
".",
"__name__",
"]",
"payload",
"=",
"packet",
".",
"data",
"while",
"not",
"isinstance",
"(",
"payload",
",",
"bytes",
")",
":",
"chain",
".",
"append",
"(",
"type",
"(",
"payload",
")",
".",
"__name__",
")",
"payload",
"=",
"payload",
".",
"data",
"return",
"':'",
".",
"join",
"(",
"chain",
")"
] | Fetch DPKT packet protocol chain. | [
"Fetch",
"DPKT",
"packet",
"protocol",
"chain",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/toolkit/dpkt.py#L30-L37 |
1,254 | JarryShaw/PyPCAPKit | src/toolkit/dpkt.py | packet2dict | def packet2dict(packet, timestamp, *, data_link):
"""Convert DPKT packet into dict."""
def wrapper(packet):
dict_ = dict()
for field in packet.__hdr_fields__:
dict_[field] = getattr(packet, field, None)
payload = packet.data
if not isinstance(payload, bytes):
dict_[type(payload).__name__] = wrapper(payload)
return dict_
return {
'timestamp': timestamp,
'packet': packet.pack(),
data_link.name: wrapper(packet),
} | python | def packet2dict(packet, timestamp, *, data_link):
def wrapper(packet):
dict_ = dict()
for field in packet.__hdr_fields__:
dict_[field] = getattr(packet, field, None)
payload = packet.data
if not isinstance(payload, bytes):
dict_[type(payload).__name__] = wrapper(payload)
return dict_
return {
'timestamp': timestamp,
'packet': packet.pack(),
data_link.name: wrapper(packet),
} | [
"def",
"packet2dict",
"(",
"packet",
",",
"timestamp",
",",
"*",
",",
"data_link",
")",
":",
"def",
"wrapper",
"(",
"packet",
")",
":",
"dict_",
"=",
"dict",
"(",
")",
"for",
"field",
"in",
"packet",
".",
"__hdr_fields__",
":",
"dict_",
"[",
"field",
"]",
"=",
"getattr",
"(",
"packet",
",",
"field",
",",
"None",
")",
"payload",
"=",
"packet",
".",
"data",
"if",
"not",
"isinstance",
"(",
"payload",
",",
"bytes",
")",
":",
"dict_",
"[",
"type",
"(",
"payload",
")",
".",
"__name__",
"]",
"=",
"wrapper",
"(",
"payload",
")",
"return",
"dict_",
"return",
"{",
"'timestamp'",
":",
"timestamp",
",",
"'packet'",
":",
"packet",
".",
"pack",
"(",
")",
",",
"data_link",
".",
"name",
":",
"wrapper",
"(",
"packet",
")",
",",
"}"
] | Convert DPKT packet into dict. | [
"Convert",
"DPKT",
"packet",
"into",
"dict",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/toolkit/dpkt.py#L40-L54 |
1,255 | JarryShaw/PyPCAPKit | src/protocols/application/httpv2.py | HTTPv2._read_http_none | def _read_http_none(self, size, kind, flag):
"""Read HTTP packet with unsigned type."""
if any((int(bit, base=2) for bit in flag)):
raise ProtocolError(f'HTTP/2: [Type {kind}] invalid format', quiet=True)
data = dict(
flags=None,
payload=self._read_fileng(size - 9) or None,
)
return data | python | def _read_http_none(self, size, kind, flag):
if any((int(bit, base=2) for bit in flag)):
raise ProtocolError(f'HTTP/2: [Type {kind}] invalid format', quiet=True)
data = dict(
flags=None,
payload=self._read_fileng(size - 9) or None,
)
return data | [
"def",
"_read_http_none",
"(",
"self",
",",
"size",
",",
"kind",
",",
"flag",
")",
":",
"if",
"any",
"(",
"(",
"int",
"(",
"bit",
",",
"base",
"=",
"2",
")",
"for",
"bit",
"in",
"flag",
")",
")",
":",
"raise",
"ProtocolError",
"(",
"f'HTTP/2: [Type {kind}] invalid format'",
",",
"quiet",
"=",
"True",
")",
"data",
"=",
"dict",
"(",
"flags",
"=",
"None",
",",
"payload",
"=",
"self",
".",
"_read_fileng",
"(",
"size",
"-",
"9",
")",
"or",
"None",
",",
")",
"return",
"data"
] | Read HTTP packet with unsigned type. | [
"Read",
"HTTP",
"packet",
"with",
"unsigned",
"type",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/application/httpv2.py#L172-L182 |
1,256 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor.run | def run(self):
"""Start extraction."""
flag = True
if self._exeng == 'dpkt':
flag, engine = self.import_test('dpkt', name='DPKT')
if flag:
return self._run_dpkt(engine)
elif self._exeng == 'scapy':
flag, engine = self.import_test('scapy.all', name='Scapy')
if flag:
return self._run_scapy(engine)
elif self._exeng == 'pyshark':
flag, engine = self.import_test('pyshark', name='PyShark')
if flag:
return self._run_pyshark(engine)
elif self._exeng == 'pipeline':
flag, engine = self.import_test('multiprocessing', name='Pipeline Multiprocessing')
self._flag_m = flag = bool(flag and (self._flag_a and CPU_CNT > 1))
if self._flag_m:
return self._run_pipeline(engine)
warnings.warn(f'extraction engine Pipeline Multiprocessing is not available; '
'using default engine instead', EngineWarning, stacklevel=stacklevel())
elif self._exeng == 'server':
flag, engine = self.import_test('multiprocessing', name='Server Multiprocessing')
self._flag_m = flag = bool(flag and (self._flag_a and CPU_CNT > 2))
if self._flag_m:
return self._run_server(engine)
warnings.warn(f'extraction engine Server Multiprocessing is not available; '
'using default engine instead', EngineWarning, stacklevel=stacklevel())
elif self._exeng not in ('default', 'pcapkit'):
flag = False
warnings.warn(f'unsupported extraction engine: {self._exeng}; '
'using default engine instead', EngineWarning, stacklevel=stacklevel())
# using default/pcapkit engine
self._exeng = self._exeng if flag else 'default'
self.record_header() # read PCAP global header
self.record_frames() | python | def run(self):
flag = True
if self._exeng == 'dpkt':
flag, engine = self.import_test('dpkt', name='DPKT')
if flag:
return self._run_dpkt(engine)
elif self._exeng == 'scapy':
flag, engine = self.import_test('scapy.all', name='Scapy')
if flag:
return self._run_scapy(engine)
elif self._exeng == 'pyshark':
flag, engine = self.import_test('pyshark', name='PyShark')
if flag:
return self._run_pyshark(engine)
elif self._exeng == 'pipeline':
flag, engine = self.import_test('multiprocessing', name='Pipeline Multiprocessing')
self._flag_m = flag = bool(flag and (self._flag_a and CPU_CNT > 1))
if self._flag_m:
return self._run_pipeline(engine)
warnings.warn(f'extraction engine Pipeline Multiprocessing is not available; '
'using default engine instead', EngineWarning, stacklevel=stacklevel())
elif self._exeng == 'server':
flag, engine = self.import_test('multiprocessing', name='Server Multiprocessing')
self._flag_m = flag = bool(flag and (self._flag_a and CPU_CNT > 2))
if self._flag_m:
return self._run_server(engine)
warnings.warn(f'extraction engine Server Multiprocessing is not available; '
'using default engine instead', EngineWarning, stacklevel=stacklevel())
elif self._exeng not in ('default', 'pcapkit'):
flag = False
warnings.warn(f'unsupported extraction engine: {self._exeng}; '
'using default engine instead', EngineWarning, stacklevel=stacklevel())
# using default/pcapkit engine
self._exeng = self._exeng if flag else 'default'
self.record_header() # read PCAP global header
self.record_frames() | [
"def",
"run",
"(",
"self",
")",
":",
"flag",
"=",
"True",
"if",
"self",
".",
"_exeng",
"==",
"'dpkt'",
":",
"flag",
",",
"engine",
"=",
"self",
".",
"import_test",
"(",
"'dpkt'",
",",
"name",
"=",
"'DPKT'",
")",
"if",
"flag",
":",
"return",
"self",
".",
"_run_dpkt",
"(",
"engine",
")",
"elif",
"self",
".",
"_exeng",
"==",
"'scapy'",
":",
"flag",
",",
"engine",
"=",
"self",
".",
"import_test",
"(",
"'scapy.all'",
",",
"name",
"=",
"'Scapy'",
")",
"if",
"flag",
":",
"return",
"self",
".",
"_run_scapy",
"(",
"engine",
")",
"elif",
"self",
".",
"_exeng",
"==",
"'pyshark'",
":",
"flag",
",",
"engine",
"=",
"self",
".",
"import_test",
"(",
"'pyshark'",
",",
"name",
"=",
"'PyShark'",
")",
"if",
"flag",
":",
"return",
"self",
".",
"_run_pyshark",
"(",
"engine",
")",
"elif",
"self",
".",
"_exeng",
"==",
"'pipeline'",
":",
"flag",
",",
"engine",
"=",
"self",
".",
"import_test",
"(",
"'multiprocessing'",
",",
"name",
"=",
"'Pipeline Multiprocessing'",
")",
"self",
".",
"_flag_m",
"=",
"flag",
"=",
"bool",
"(",
"flag",
"and",
"(",
"self",
".",
"_flag_a",
"and",
"CPU_CNT",
">",
"1",
")",
")",
"if",
"self",
".",
"_flag_m",
":",
"return",
"self",
".",
"_run_pipeline",
"(",
"engine",
")",
"warnings",
".",
"warn",
"(",
"f'extraction engine Pipeline Multiprocessing is not available; '",
"'using default engine instead'",
",",
"EngineWarning",
",",
"stacklevel",
"=",
"stacklevel",
"(",
")",
")",
"elif",
"self",
".",
"_exeng",
"==",
"'server'",
":",
"flag",
",",
"engine",
"=",
"self",
".",
"import_test",
"(",
"'multiprocessing'",
",",
"name",
"=",
"'Server Multiprocessing'",
")",
"self",
".",
"_flag_m",
"=",
"flag",
"=",
"bool",
"(",
"flag",
"and",
"(",
"self",
".",
"_flag_a",
"and",
"CPU_CNT",
">",
"2",
")",
")",
"if",
"self",
".",
"_flag_m",
":",
"return",
"self",
".",
"_run_server",
"(",
"engine",
")",
"warnings",
".",
"warn",
"(",
"f'extraction engine Server Multiprocessing is not available; '",
"'using default engine instead'",
",",
"EngineWarning",
",",
"stacklevel",
"=",
"stacklevel",
"(",
")",
")",
"elif",
"self",
".",
"_exeng",
"not",
"in",
"(",
"'default'",
",",
"'pcapkit'",
")",
":",
"flag",
"=",
"False",
"warnings",
".",
"warn",
"(",
"f'unsupported extraction engine: {self._exeng}; '",
"'using default engine instead'",
",",
"EngineWarning",
",",
"stacklevel",
"=",
"stacklevel",
"(",
")",
")",
"# using default/pcapkit engine",
"self",
".",
"_exeng",
"=",
"self",
".",
"_exeng",
"if",
"flag",
"else",
"'default'",
"self",
".",
"record_header",
"(",
")",
"# read PCAP global header",
"self",
".",
"record_frames",
"(",
")"
] | Start extraction. | [
"Start",
"extraction",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L224-L261 |
1,257 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor.record_header | def record_header(self):
"""Read global header.
- Extract global header.
- Make Info object out of header properties.
- Append Info.
- Write plist file.
"""
self._gbhdr = Header(self._ifile)
self._vinfo = self._gbhdr.version
self._dlink = self._gbhdr.protocol
self._nnsec = self._gbhdr.nanosecond
if self._trace is not NotImplemented:
self._trace._endian = self._gbhdr.byteorder
self._trace._nnsecd = self._gbhdr.nanosecond
if not self._flag_q:
if self._flag_f:
ofile = self._ofile(f'{self._ofnm}/Global Header.{self._fext}')
ofile(self._gbhdr.info, name='Global Header')
self._type = ofile.kind
else:
self._ofile(self._gbhdr.info, name='Global Header')
self._type = self._ofile.kind | python | def record_header(self):
self._gbhdr = Header(self._ifile)
self._vinfo = self._gbhdr.version
self._dlink = self._gbhdr.protocol
self._nnsec = self._gbhdr.nanosecond
if self._trace is not NotImplemented:
self._trace._endian = self._gbhdr.byteorder
self._trace._nnsecd = self._gbhdr.nanosecond
if not self._flag_q:
if self._flag_f:
ofile = self._ofile(f'{self._ofnm}/Global Header.{self._fext}')
ofile(self._gbhdr.info, name='Global Header')
self._type = ofile.kind
else:
self._ofile(self._gbhdr.info, name='Global Header')
self._type = self._ofile.kind | [
"def",
"record_header",
"(",
"self",
")",
":",
"self",
".",
"_gbhdr",
"=",
"Header",
"(",
"self",
".",
"_ifile",
")",
"self",
".",
"_vinfo",
"=",
"self",
".",
"_gbhdr",
".",
"version",
"self",
".",
"_dlink",
"=",
"self",
".",
"_gbhdr",
".",
"protocol",
"self",
".",
"_nnsec",
"=",
"self",
".",
"_gbhdr",
".",
"nanosecond",
"if",
"self",
".",
"_trace",
"is",
"not",
"NotImplemented",
":",
"self",
".",
"_trace",
".",
"_endian",
"=",
"self",
".",
"_gbhdr",
".",
"byteorder",
"self",
".",
"_trace",
".",
"_nnsecd",
"=",
"self",
".",
"_gbhdr",
".",
"nanosecond",
"if",
"not",
"self",
".",
"_flag_q",
":",
"if",
"self",
".",
"_flag_f",
":",
"ofile",
"=",
"self",
".",
"_ofile",
"(",
"f'{self._ofnm}/Global Header.{self._fext}'",
")",
"ofile",
"(",
"self",
".",
"_gbhdr",
".",
"info",
",",
"name",
"=",
"'Global Header'",
")",
"self",
".",
"_type",
"=",
"ofile",
".",
"kind",
"else",
":",
"self",
".",
"_ofile",
"(",
"self",
".",
"_gbhdr",
".",
"info",
",",
"name",
"=",
"'Global Header'",
")",
"self",
".",
"_type",
"=",
"self",
".",
"_ofile",
".",
"kind"
] | Read global header.
- Extract global header.
- Make Info object out of header properties.
- Append Info.
- Write plist file. | [
"Read",
"global",
"header",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L345-L370 |
1,258 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._cleanup | def _cleanup(self):
"""Cleanup after extraction & analysis."""
self._expkg = None
self._extmp = None
self._flag_e = True
self._ifile.close() | python | def _cleanup(self):
self._expkg = None
self._extmp = None
self._flag_e = True
self._ifile.close() | [
"def",
"_cleanup",
"(",
"self",
")",
":",
"self",
".",
"_expkg",
"=",
"None",
"self",
".",
"_extmp",
"=",
"None",
"self",
".",
"_flag_e",
"=",
"True",
"self",
".",
"_ifile",
".",
"close",
"(",
")"
] | Cleanup after extraction & analysis. | [
"Cleanup",
"after",
"extraction",
"&",
"analysis",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L566-L571 |
1,259 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._aftermathmp | def _aftermathmp(self):
"""Aftermath for multiprocessing."""
if not self._flag_e and self._flag_m:
# join processes
[proc.join() for proc in self._mpprc]
if self._exeng == 'server':
self._mpsvc.join()
# restore attributes
if self._exeng == 'server':
self._frame = list(self._mpfrm)
self._reasm = list(self._mprsm)
self._trace = copy.deepcopy(self._mpkit.trace)
if self._exeng == 'pipeline':
self._frame = [self._mpkit.frames[x] for x in sorted(self._mpkit.frames)]
self._reasm = copy.deepcopy(self._mpkit.reassembly)
self._trace = copy.deepcopy(self._mpkit.trace)
# shutdown & cleanup
self._mpmng.shutdown()
[delattr(self, attr) for attr in filter(lambda s: s.startswith('_mp'), dir(self))]
self._frnum -= 2 | python | def _aftermathmp(self):
if not self._flag_e and self._flag_m:
# join processes
[proc.join() for proc in self._mpprc]
if self._exeng == 'server':
self._mpsvc.join()
# restore attributes
if self._exeng == 'server':
self._frame = list(self._mpfrm)
self._reasm = list(self._mprsm)
self._trace = copy.deepcopy(self._mpkit.trace)
if self._exeng == 'pipeline':
self._frame = [self._mpkit.frames[x] for x in sorted(self._mpkit.frames)]
self._reasm = copy.deepcopy(self._mpkit.reassembly)
self._trace = copy.deepcopy(self._mpkit.trace)
# shutdown & cleanup
self._mpmng.shutdown()
[delattr(self, attr) for attr in filter(lambda s: s.startswith('_mp'), dir(self))]
self._frnum -= 2 | [
"def",
"_aftermathmp",
"(",
"self",
")",
":",
"if",
"not",
"self",
".",
"_flag_e",
"and",
"self",
".",
"_flag_m",
":",
"# join processes",
"[",
"proc",
".",
"join",
"(",
")",
"for",
"proc",
"in",
"self",
".",
"_mpprc",
"]",
"if",
"self",
".",
"_exeng",
"==",
"'server'",
":",
"self",
".",
"_mpsvc",
".",
"join",
"(",
")",
"# restore attributes",
"if",
"self",
".",
"_exeng",
"==",
"'server'",
":",
"self",
".",
"_frame",
"=",
"list",
"(",
"self",
".",
"_mpfrm",
")",
"self",
".",
"_reasm",
"=",
"list",
"(",
"self",
".",
"_mprsm",
")",
"self",
".",
"_trace",
"=",
"copy",
".",
"deepcopy",
"(",
"self",
".",
"_mpkit",
".",
"trace",
")",
"if",
"self",
".",
"_exeng",
"==",
"'pipeline'",
":",
"self",
".",
"_frame",
"=",
"[",
"self",
".",
"_mpkit",
".",
"frames",
"[",
"x",
"]",
"for",
"x",
"in",
"sorted",
"(",
"self",
".",
"_mpkit",
".",
"frames",
")",
"]",
"self",
".",
"_reasm",
"=",
"copy",
".",
"deepcopy",
"(",
"self",
".",
"_mpkit",
".",
"reassembly",
")",
"self",
".",
"_trace",
"=",
"copy",
".",
"deepcopy",
"(",
"self",
".",
"_mpkit",
".",
"trace",
")",
"# shutdown & cleanup",
"self",
".",
"_mpmng",
".",
"shutdown",
"(",
")",
"[",
"delattr",
"(",
"self",
",",
"attr",
")",
"for",
"attr",
"in",
"filter",
"(",
"lambda",
"s",
":",
"s",
".",
"startswith",
"(",
"'_mp'",
")",
",",
"dir",
"(",
"self",
")",
")",
"]",
"self",
".",
"_frnum",
"-=",
"2"
] | Aftermath for multiprocessing. | [
"Aftermath",
"for",
"multiprocessing",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L573-L594 |
1,260 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._update_eof | def _update_eof(self):
"""Update EOF flag."""
self._aftermathmp()
self._ifile.close()
self._flag_e = True | python | def _update_eof(self):
self._aftermathmp()
self._ifile.close()
self._flag_e = True | [
"def",
"_update_eof",
"(",
"self",
")",
":",
"self",
".",
"_aftermathmp",
"(",
")",
"self",
".",
"_ifile",
".",
"close",
"(",
")",
"self",
".",
"_flag_e",
"=",
"True"
] | Update EOF flag. | [
"Update",
"EOF",
"flag",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L597-L601 |
1,261 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._read_frame | def _read_frame(self):
"""Headquarters for frame reader."""
if self._exeng == 'scapy':
return self._scapy_read_frame()
elif self._exeng == 'dpkt':
return self._dpkt_read_frame()
elif self._exeng == 'pyshark':
return self._pyshark_read_frame()
else:
return self._default_read_frame() | python | def _read_frame(self):
if self._exeng == 'scapy':
return self._scapy_read_frame()
elif self._exeng == 'dpkt':
return self._dpkt_read_frame()
elif self._exeng == 'pyshark':
return self._pyshark_read_frame()
else:
return self._default_read_frame() | [
"def",
"_read_frame",
"(",
"self",
")",
":",
"if",
"self",
".",
"_exeng",
"==",
"'scapy'",
":",
"return",
"self",
".",
"_scapy_read_frame",
"(",
")",
"elif",
"self",
".",
"_exeng",
"==",
"'dpkt'",
":",
"return",
"self",
".",
"_dpkt_read_frame",
"(",
")",
"elif",
"self",
".",
"_exeng",
"==",
"'pyshark'",
":",
"return",
"self",
".",
"_pyshark_read_frame",
"(",
")",
"else",
":",
"return",
"self",
".",
"_default_read_frame",
"(",
")"
] | Headquarters for frame reader. | [
"Headquarters",
"for",
"frame",
"reader",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L603-L612 |
1,262 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._default_read_frame | def _default_read_frame(self, *, frame=None, mpkit=None):
"""Read frames with default engine.
- Extract frames and each layer of packets.
- Make Info object out of frame properties.
- Append Info.
- Write plist & append Info.
"""
from pcapkit.toolkit.default import (ipv4_reassembly, ipv6_reassembly,
tcp_reassembly, tcp_traceflow)
# read frame header
if not self._flag_m:
frame = Frame(self._ifile, num=self._frnum+1, proto=self._dlink,
layer=self._exlyr, protocol=self._exptl, nanosecond=self._nnsec)
self._frnum += 1
# verbose output
if self._flag_v:
print(f' - Frame {self._frnum:>3d}: {frame.protochain}')
# write plist
frnum = f'Frame {self._frnum}'
if not self._flag_q:
if self._flag_f:
ofile = self._ofile(f'{self._ofnm}/{frnum}.{self._fext}')
ofile(frame.info, name=frnum)
else:
self._ofile(frame.info, name=frnum)
# record fragments
if self._ipv4:
flag, data = ipv4_reassembly(frame)
if flag:
self._reasm[0](data) # pylint: disable=E1102
if self._ipv6:
flag, data = ipv6_reassembly(frame)
if flag:
self._reasm[1](data) # pylint: disable=E1102
if self._tcp:
flag, data = tcp_reassembly(frame)
if flag:
self._reasm[2](data) # pylint: disable=E1102
# trace flows
if self._flag_t:
flag, data = tcp_traceflow(frame, data_link=self._dlink)
if flag:
self._trace(data)
# record frames
if self._exeng == 'pipeline':
if self._flag_d:
# frame._file = NotImplemented
mpkit.frames[self._frnum] = frame
# print(self._frnum, 'stored')
mpkit.current += 1
elif self._exeng == 'server':
# record frames
if self._flag_d:
# frame._file = NotImplemented
self._frame.append(frame)
# print(self._frnum, 'stored')
self._frnum += 1
else:
if self._flag_d:
self._frame.append(frame)
self._proto = frame.protochain.chain
# return frame record
return frame | python | def _default_read_frame(self, *, frame=None, mpkit=None):
from pcapkit.toolkit.default import (ipv4_reassembly, ipv6_reassembly,
tcp_reassembly, tcp_traceflow)
# read frame header
if not self._flag_m:
frame = Frame(self._ifile, num=self._frnum+1, proto=self._dlink,
layer=self._exlyr, protocol=self._exptl, nanosecond=self._nnsec)
self._frnum += 1
# verbose output
if self._flag_v:
print(f' - Frame {self._frnum:>3d}: {frame.protochain}')
# write plist
frnum = f'Frame {self._frnum}'
if not self._flag_q:
if self._flag_f:
ofile = self._ofile(f'{self._ofnm}/{frnum}.{self._fext}')
ofile(frame.info, name=frnum)
else:
self._ofile(frame.info, name=frnum)
# record fragments
if self._ipv4:
flag, data = ipv4_reassembly(frame)
if flag:
self._reasm[0](data) # pylint: disable=E1102
if self._ipv6:
flag, data = ipv6_reassembly(frame)
if flag:
self._reasm[1](data) # pylint: disable=E1102
if self._tcp:
flag, data = tcp_reassembly(frame)
if flag:
self._reasm[2](data) # pylint: disable=E1102
# trace flows
if self._flag_t:
flag, data = tcp_traceflow(frame, data_link=self._dlink)
if flag:
self._trace(data)
# record frames
if self._exeng == 'pipeline':
if self._flag_d:
# frame._file = NotImplemented
mpkit.frames[self._frnum] = frame
# print(self._frnum, 'stored')
mpkit.current += 1
elif self._exeng == 'server':
# record frames
if self._flag_d:
# frame._file = NotImplemented
self._frame.append(frame)
# print(self._frnum, 'stored')
self._frnum += 1
else:
if self._flag_d:
self._frame.append(frame)
self._proto = frame.protochain.chain
# return frame record
return frame | [
"def",
"_default_read_frame",
"(",
"self",
",",
"*",
",",
"frame",
"=",
"None",
",",
"mpkit",
"=",
"None",
")",
":",
"from",
"pcapkit",
".",
"toolkit",
".",
"default",
"import",
"(",
"ipv4_reassembly",
",",
"ipv6_reassembly",
",",
"tcp_reassembly",
",",
"tcp_traceflow",
")",
"# read frame header",
"if",
"not",
"self",
".",
"_flag_m",
":",
"frame",
"=",
"Frame",
"(",
"self",
".",
"_ifile",
",",
"num",
"=",
"self",
".",
"_frnum",
"+",
"1",
",",
"proto",
"=",
"self",
".",
"_dlink",
",",
"layer",
"=",
"self",
".",
"_exlyr",
",",
"protocol",
"=",
"self",
".",
"_exptl",
",",
"nanosecond",
"=",
"self",
".",
"_nnsec",
")",
"self",
".",
"_frnum",
"+=",
"1",
"# verbose output",
"if",
"self",
".",
"_flag_v",
":",
"print",
"(",
"f' - Frame {self._frnum:>3d}: {frame.protochain}'",
")",
"# write plist",
"frnum",
"=",
"f'Frame {self._frnum}'",
"if",
"not",
"self",
".",
"_flag_q",
":",
"if",
"self",
".",
"_flag_f",
":",
"ofile",
"=",
"self",
".",
"_ofile",
"(",
"f'{self._ofnm}/{frnum}.{self._fext}'",
")",
"ofile",
"(",
"frame",
".",
"info",
",",
"name",
"=",
"frnum",
")",
"else",
":",
"self",
".",
"_ofile",
"(",
"frame",
".",
"info",
",",
"name",
"=",
"frnum",
")",
"# record fragments",
"if",
"self",
".",
"_ipv4",
":",
"flag",
",",
"data",
"=",
"ipv4_reassembly",
"(",
"frame",
")",
"if",
"flag",
":",
"self",
".",
"_reasm",
"[",
"0",
"]",
"(",
"data",
")",
"# pylint: disable=E1102",
"if",
"self",
".",
"_ipv6",
":",
"flag",
",",
"data",
"=",
"ipv6_reassembly",
"(",
"frame",
")",
"if",
"flag",
":",
"self",
".",
"_reasm",
"[",
"1",
"]",
"(",
"data",
")",
"# pylint: disable=E1102",
"if",
"self",
".",
"_tcp",
":",
"flag",
",",
"data",
"=",
"tcp_reassembly",
"(",
"frame",
")",
"if",
"flag",
":",
"self",
".",
"_reasm",
"[",
"2",
"]",
"(",
"data",
")",
"# pylint: disable=E1102",
"# trace flows",
"if",
"self",
".",
"_flag_t",
":",
"flag",
",",
"data",
"=",
"tcp_traceflow",
"(",
"frame",
",",
"data_link",
"=",
"self",
".",
"_dlink",
")",
"if",
"flag",
":",
"self",
".",
"_trace",
"(",
"data",
")",
"# record frames",
"if",
"self",
".",
"_exeng",
"==",
"'pipeline'",
":",
"if",
"self",
".",
"_flag_d",
":",
"# frame._file = NotImplemented",
"mpkit",
".",
"frames",
"[",
"self",
".",
"_frnum",
"]",
"=",
"frame",
"# print(self._frnum, 'stored')",
"mpkit",
".",
"current",
"+=",
"1",
"elif",
"self",
".",
"_exeng",
"==",
"'server'",
":",
"# record frames",
"if",
"self",
".",
"_flag_d",
":",
"# frame._file = NotImplemented",
"self",
".",
"_frame",
".",
"append",
"(",
"frame",
")",
"# print(self._frnum, 'stored')",
"self",
".",
"_frnum",
"+=",
"1",
"else",
":",
"if",
"self",
".",
"_flag_d",
":",
"self",
".",
"_frame",
".",
"append",
"(",
"frame",
")",
"self",
".",
"_proto",
"=",
"frame",
".",
"protochain",
".",
"chain",
"# return frame record",
"return",
"frame"
] | Read frames with default engine.
- Extract frames and each layer of packets.
- Make Info object out of frame properties.
- Append Info.
- Write plist & append Info. | [
"Read",
"frames",
"with",
"default",
"engine",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L614-L685 |
1,263 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._run_scapy | def _run_scapy(self, scapy_all):
"""Call scapy.all.sniff to extract PCAP files."""
# if not self._flag_a:
# self._flag_a = True
# warnings.warn(f"'Extractor(engine=scapy)' object is not iterable; "
# "so 'auto=False' will be ignored", AttributeWarning, stacklevel=stacklevel())
if self._exlyr != 'None' or self._exptl != 'null':
warnings.warn("'Extractor(engine=scapy)' does not support protocol and layer threshold; "
f"'layer={self._exlyr}' and 'protocol={self._exptl}' ignored",
AttributeWarning, stacklevel=stacklevel())
# extract & analyse file
self._expkg = scapy_all
self._extmp = iter(scapy_all.sniff(offline=self._ifnm))
# start iteration
self.record_frames() | python | def _run_scapy(self, scapy_all):
# if not self._flag_a:
# self._flag_a = True
# warnings.warn(f"'Extractor(engine=scapy)' object is not iterable; "
# "so 'auto=False' will be ignored", AttributeWarning, stacklevel=stacklevel())
if self._exlyr != 'None' or self._exptl != 'null':
warnings.warn("'Extractor(engine=scapy)' does not support protocol and layer threshold; "
f"'layer={self._exlyr}' and 'protocol={self._exptl}' ignored",
AttributeWarning, stacklevel=stacklevel())
# extract & analyse file
self._expkg = scapy_all
self._extmp = iter(scapy_all.sniff(offline=self._ifnm))
# start iteration
self.record_frames() | [
"def",
"_run_scapy",
"(",
"self",
",",
"scapy_all",
")",
":",
"# if not self._flag_a:",
"# self._flag_a = True",
"# warnings.warn(f\"'Extractor(engine=scapy)' object is not iterable; \"",
"# \"so 'auto=False' will be ignored\", AttributeWarning, stacklevel=stacklevel())",
"if",
"self",
".",
"_exlyr",
"!=",
"'None'",
"or",
"self",
".",
"_exptl",
"!=",
"'null'",
":",
"warnings",
".",
"warn",
"(",
"\"'Extractor(engine=scapy)' does not support protocol and layer threshold; \"",
"f\"'layer={self._exlyr}' and 'protocol={self._exptl}' ignored\"",
",",
"AttributeWarning",
",",
"stacklevel",
"=",
"stacklevel",
"(",
")",
")",
"# extract & analyse file",
"self",
".",
"_expkg",
"=",
"scapy_all",
"self",
".",
"_extmp",
"=",
"iter",
"(",
"scapy_all",
".",
"sniff",
"(",
"offline",
"=",
"self",
".",
"_ifnm",
")",
")",
"# start iteration",
"self",
".",
"record_frames",
"(",
")"
] | Call scapy.all.sniff to extract PCAP files. | [
"Call",
"scapy",
".",
"all",
".",
"sniff",
"to",
"extract",
"PCAP",
"files",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L687-L704 |
1,264 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._scapy_read_frame | def _scapy_read_frame(self):
"""Read frames with Scapy."""
from pcapkit.toolkit.scapy import (ipv4_reassembly, ipv6_reassembly,
packet2chain, packet2dict, tcp_reassembly,
tcp_traceflow)
# fetch Scapy packet
packet = next(self._extmp)
# verbose output
self._frnum += 1
self._proto = packet2chain(packet)
if self._flag_v:
print(f' - Frame {self._frnum:>3d}: {self._proto}')
# write plist
frnum = f'Frame {self._frnum}'
if not self._flag_q:
info = packet2dict(packet)
if self._flag_f:
ofile = self._ofile(f'{self._ofnm}/{frnum}.{self._fext}')
ofile(info, name=frnum)
else:
self._ofile(info, name=frnum)
# record frames
if self._flag_d:
# setattr(packet, 'packet2dict', packet2dict)
# setattr(packet, 'packet2chain', packet2chain)
self._frame.append(packet)
# record fragments
if self._ipv4:
flag, data = ipv4_reassembly(packet, count=self._frnum)
if flag:
self._reasm[0](data) # pylint: disable=E1102
if self._ipv6:
flag, data = ipv6_reassembly(packet, count=self._frnum)
if flag:
self._reasm[1](data) # pylint: disable=E1102
if self._tcp:
flag, data = tcp_reassembly(packet, count=self._frnum)
if flag:
self._reasm[2](data) # pylint: disable=E1102
# trace flows
if self._flag_t:
flag, data = tcp_traceflow(packet, count=self._frnum)
if flag:
self._trace(data)
return packet | python | def _scapy_read_frame(self):
from pcapkit.toolkit.scapy import (ipv4_reassembly, ipv6_reassembly,
packet2chain, packet2dict, tcp_reassembly,
tcp_traceflow)
# fetch Scapy packet
packet = next(self._extmp)
# verbose output
self._frnum += 1
self._proto = packet2chain(packet)
if self._flag_v:
print(f' - Frame {self._frnum:>3d}: {self._proto}')
# write plist
frnum = f'Frame {self._frnum}'
if not self._flag_q:
info = packet2dict(packet)
if self._flag_f:
ofile = self._ofile(f'{self._ofnm}/{frnum}.{self._fext}')
ofile(info, name=frnum)
else:
self._ofile(info, name=frnum)
# record frames
if self._flag_d:
# setattr(packet, 'packet2dict', packet2dict)
# setattr(packet, 'packet2chain', packet2chain)
self._frame.append(packet)
# record fragments
if self._ipv4:
flag, data = ipv4_reassembly(packet, count=self._frnum)
if flag:
self._reasm[0](data) # pylint: disable=E1102
if self._ipv6:
flag, data = ipv6_reassembly(packet, count=self._frnum)
if flag:
self._reasm[1](data) # pylint: disable=E1102
if self._tcp:
flag, data = tcp_reassembly(packet, count=self._frnum)
if flag:
self._reasm[2](data) # pylint: disable=E1102
# trace flows
if self._flag_t:
flag, data = tcp_traceflow(packet, count=self._frnum)
if flag:
self._trace(data)
return packet | [
"def",
"_scapy_read_frame",
"(",
"self",
")",
":",
"from",
"pcapkit",
".",
"toolkit",
".",
"scapy",
"import",
"(",
"ipv4_reassembly",
",",
"ipv6_reassembly",
",",
"packet2chain",
",",
"packet2dict",
",",
"tcp_reassembly",
",",
"tcp_traceflow",
")",
"# fetch Scapy packet",
"packet",
"=",
"next",
"(",
"self",
".",
"_extmp",
")",
"# verbose output",
"self",
".",
"_frnum",
"+=",
"1",
"self",
".",
"_proto",
"=",
"packet2chain",
"(",
"packet",
")",
"if",
"self",
".",
"_flag_v",
":",
"print",
"(",
"f' - Frame {self._frnum:>3d}: {self._proto}'",
")",
"# write plist",
"frnum",
"=",
"f'Frame {self._frnum}'",
"if",
"not",
"self",
".",
"_flag_q",
":",
"info",
"=",
"packet2dict",
"(",
"packet",
")",
"if",
"self",
".",
"_flag_f",
":",
"ofile",
"=",
"self",
".",
"_ofile",
"(",
"f'{self._ofnm}/{frnum}.{self._fext}'",
")",
"ofile",
"(",
"info",
",",
"name",
"=",
"frnum",
")",
"else",
":",
"self",
".",
"_ofile",
"(",
"info",
",",
"name",
"=",
"frnum",
")",
"# record frames",
"if",
"self",
".",
"_flag_d",
":",
"# setattr(packet, 'packet2dict', packet2dict)",
"# setattr(packet, 'packet2chain', packet2chain)",
"self",
".",
"_frame",
".",
"append",
"(",
"packet",
")",
"# record fragments",
"if",
"self",
".",
"_ipv4",
":",
"flag",
",",
"data",
"=",
"ipv4_reassembly",
"(",
"packet",
",",
"count",
"=",
"self",
".",
"_frnum",
")",
"if",
"flag",
":",
"self",
".",
"_reasm",
"[",
"0",
"]",
"(",
"data",
")",
"# pylint: disable=E1102",
"if",
"self",
".",
"_ipv6",
":",
"flag",
",",
"data",
"=",
"ipv6_reassembly",
"(",
"packet",
",",
"count",
"=",
"self",
".",
"_frnum",
")",
"if",
"flag",
":",
"self",
".",
"_reasm",
"[",
"1",
"]",
"(",
"data",
")",
"# pylint: disable=E1102",
"if",
"self",
".",
"_tcp",
":",
"flag",
",",
"data",
"=",
"tcp_reassembly",
"(",
"packet",
",",
"count",
"=",
"self",
".",
"_frnum",
")",
"if",
"flag",
":",
"self",
".",
"_reasm",
"[",
"2",
"]",
"(",
"data",
")",
"# pylint: disable=E1102",
"# trace flows",
"if",
"self",
".",
"_flag_t",
":",
"flag",
",",
"data",
"=",
"tcp_traceflow",
"(",
"packet",
",",
"count",
"=",
"self",
".",
"_frnum",
")",
"if",
"flag",
":",
"self",
".",
"_trace",
"(",
"data",
")",
"return",
"packet"
] | Read frames with Scapy. | [
"Read",
"frames",
"with",
"Scapy",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L706-L757 |
1,265 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._run_dpkt | def _run_dpkt(self, dpkt):
"""Call dpkt.pcap.Reader to extract PCAP files."""
# if not self._flag_a:
# self._flag_a = True
# warnings.warn(f"'Extractor(engine=dpkt)' object is not iterable; "
# "so 'auto=False' will be ignored", AttributeWarning, stacklevel=stacklevel())
if self._exlyr != 'None' or self._exptl != 'null':
warnings.warn("'Extractor(engine=dpkt)' does not support protocol and layer threshold; "
f"'layer={self._exlyr}' and 'protocol={self._exptl}' ignored",
AttributeWarning, stacklevel=stacklevel())
# extract global header
self.record_header()
self._ifile.seek(0, os.SEEK_SET)
# extract & analyse file
self._expkg = dpkt
self._extmp = iter(dpkt.pcap.Reader(self._ifile))
# start iteration
self.record_frames() | python | def _run_dpkt(self, dpkt):
# if not self._flag_a:
# self._flag_a = True
# warnings.warn(f"'Extractor(engine=dpkt)' object is not iterable; "
# "so 'auto=False' will be ignored", AttributeWarning, stacklevel=stacklevel())
if self._exlyr != 'None' or self._exptl != 'null':
warnings.warn("'Extractor(engine=dpkt)' does not support protocol and layer threshold; "
f"'layer={self._exlyr}' and 'protocol={self._exptl}' ignored",
AttributeWarning, stacklevel=stacklevel())
# extract global header
self.record_header()
self._ifile.seek(0, os.SEEK_SET)
# extract & analyse file
self._expkg = dpkt
self._extmp = iter(dpkt.pcap.Reader(self._ifile))
# start iteration
self.record_frames() | [
"def",
"_run_dpkt",
"(",
"self",
",",
"dpkt",
")",
":",
"# if not self._flag_a:",
"# self._flag_a = True",
"# warnings.warn(f\"'Extractor(engine=dpkt)' object is not iterable; \"",
"# \"so 'auto=False' will be ignored\", AttributeWarning, stacklevel=stacklevel())",
"if",
"self",
".",
"_exlyr",
"!=",
"'None'",
"or",
"self",
".",
"_exptl",
"!=",
"'null'",
":",
"warnings",
".",
"warn",
"(",
"\"'Extractor(engine=dpkt)' does not support protocol and layer threshold; \"",
"f\"'layer={self._exlyr}' and 'protocol={self._exptl}' ignored\"",
",",
"AttributeWarning",
",",
"stacklevel",
"=",
"stacklevel",
"(",
")",
")",
"# extract global header",
"self",
".",
"record_header",
"(",
")",
"self",
".",
"_ifile",
".",
"seek",
"(",
"0",
",",
"os",
".",
"SEEK_SET",
")",
"# extract & analyse file",
"self",
".",
"_expkg",
"=",
"dpkt",
"self",
".",
"_extmp",
"=",
"iter",
"(",
"dpkt",
".",
"pcap",
".",
"Reader",
"(",
"self",
".",
"_ifile",
")",
")",
"# start iteration",
"self",
".",
"record_frames",
"(",
")"
] | Call dpkt.pcap.Reader to extract PCAP files. | [
"Call",
"dpkt",
".",
"pcap",
".",
"Reader",
"to",
"extract",
"PCAP",
"files",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L759-L780 |
1,266 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._run_pyshark | def _run_pyshark(self, pyshark):
"""Call pyshark.FileCapture to extract PCAP files."""
# if not self._flag_a:
# self._flag_a = True
# warnings.warn(f"'Extractor(engine=pyshark)' object is not iterable; "
# "so 'auto=False' will be ignored", AttributeWarning, stacklevel=stacklevel())
if self._exlyr != 'None' or self._exptl != 'null':
warnings.warn("'Extractor(engine=pyshark)' does not support protocol and layer threshold; "
f"'layer={self._exlyr}' and 'protocol={self._exptl}' ignored",
AttributeWarning, stacklevel=stacklevel())
if (self._ipv4 or self._ipv6 or self._tcp):
self._ipv4 = self._ipv6 = self._tcp = False
self._reasm = [None] * 3
warnings.warn("'Extractor(engine=pyshark)' object dose not support reassembly; "
f"so 'ipv4={self._ipv4}', 'ipv6={self._ipv6}' and 'tcp={self._tcp}' will be ignored",
AttributeWarning, stacklevel=stacklevel())
# extract & analyse file
self._expkg = pyshark
self._extmp = iter(pyshark.FileCapture(self._ifnm, keep_packets=False))
# start iteration
self.record_frames() | python | def _run_pyshark(self, pyshark):
# if not self._flag_a:
# self._flag_a = True
# warnings.warn(f"'Extractor(engine=pyshark)' object is not iterable; "
# "so 'auto=False' will be ignored", AttributeWarning, stacklevel=stacklevel())
if self._exlyr != 'None' or self._exptl != 'null':
warnings.warn("'Extractor(engine=pyshark)' does not support protocol and layer threshold; "
f"'layer={self._exlyr}' and 'protocol={self._exptl}' ignored",
AttributeWarning, stacklevel=stacklevel())
if (self._ipv4 or self._ipv6 or self._tcp):
self._ipv4 = self._ipv6 = self._tcp = False
self._reasm = [None] * 3
warnings.warn("'Extractor(engine=pyshark)' object dose not support reassembly; "
f"so 'ipv4={self._ipv4}', 'ipv6={self._ipv6}' and 'tcp={self._tcp}' will be ignored",
AttributeWarning, stacklevel=stacklevel())
# extract & analyse file
self._expkg = pyshark
self._extmp = iter(pyshark.FileCapture(self._ifnm, keep_packets=False))
# start iteration
self.record_frames() | [
"def",
"_run_pyshark",
"(",
"self",
",",
"pyshark",
")",
":",
"# if not self._flag_a:",
"# self._flag_a = True",
"# warnings.warn(f\"'Extractor(engine=pyshark)' object is not iterable; \"",
"# \"so 'auto=False' will be ignored\", AttributeWarning, stacklevel=stacklevel())",
"if",
"self",
".",
"_exlyr",
"!=",
"'None'",
"or",
"self",
".",
"_exptl",
"!=",
"'null'",
":",
"warnings",
".",
"warn",
"(",
"\"'Extractor(engine=pyshark)' does not support protocol and layer threshold; \"",
"f\"'layer={self._exlyr}' and 'protocol={self._exptl}' ignored\"",
",",
"AttributeWarning",
",",
"stacklevel",
"=",
"stacklevel",
"(",
")",
")",
"if",
"(",
"self",
".",
"_ipv4",
"or",
"self",
".",
"_ipv6",
"or",
"self",
".",
"_tcp",
")",
":",
"self",
".",
"_ipv4",
"=",
"self",
".",
"_ipv6",
"=",
"self",
".",
"_tcp",
"=",
"False",
"self",
".",
"_reasm",
"=",
"[",
"None",
"]",
"*",
"3",
"warnings",
".",
"warn",
"(",
"\"'Extractor(engine=pyshark)' object dose not support reassembly; \"",
"f\"so 'ipv4={self._ipv4}', 'ipv6={self._ipv6}' and 'tcp={self._tcp}' will be ignored\"",
",",
"AttributeWarning",
",",
"stacklevel",
"=",
"stacklevel",
"(",
")",
")",
"# extract & analyse file",
"self",
".",
"_expkg",
"=",
"pyshark",
"self",
".",
"_extmp",
"=",
"iter",
"(",
"pyshark",
".",
"FileCapture",
"(",
"self",
".",
"_ifnm",
",",
"keep_packets",
"=",
"False",
")",
")",
"# start iteration",
"self",
".",
"record_frames",
"(",
")"
] | Call pyshark.FileCapture to extract PCAP files. | [
"Call",
"pyshark",
".",
"FileCapture",
"to",
"extract",
"PCAP",
"files",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L850-L874 |
1,267 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._run_pipeline | def _run_pipeline(self, multiprocessing):
"""Use pipeline multiprocessing to extract PCAP files."""
if not self._flag_m:
raise UnsupportedCall(f"Extractor(engine={self._exeng})' has no attribute '_run_pipline'")
if not self._flag_q:
self._flag_q = True
warnings.warn("'Extractor(engine=pipeline)' does not support output; "
f"'fout={self._ofnm}' ignored", AttributeWarning, stacklevel=stacklevel())
self._frnum = 1 # frame number (revised)
self._expkg = multiprocessing # multiprocessing module
self._mpprc = list() # multiprocessing process list
self._mpfdp = collections.defaultdict(multiprocessing.Queue) # multiprocessing file pointer
self._mpmng = multiprocessing.Manager() # multiprocessing manager
self._mpkit = self._mpmng.Namespace() # multiprocessing work kit
self._mpkit.counter = 0 # work count (on duty)
self._mpkit.pool = 1 # work pool (ready)
self._mpkit.current = 1 # current frame number
self._mpkit.eof = False # EOF flag
self._mpkit.frames = dict() # frame storage
self._mpkit.trace = self._trace # flow tracer
self._mpkit.reassembly = copy.deepcopy(self._reasm) # reassembly buffers
# preparation
self.record_header()
self._mpfdp[0].put(self._gbhdr.length)
# extraction
while True:
# check EOF
if self._mpkit.eof:
self._update_eof()
break
# check counter
if self._mpkit.pool and self._mpkit.counter < CPU_CNT:
# update file offset
self._ifile.seek(self._mpfdp.pop(self._frnum-1).get(), os.SEEK_SET)
# create worker
# print(self._frnum, 'start')
proc = multiprocessing.Process(
target=self._pipeline_read_frame,
kwargs={'mpkit': self._mpkit, 'mpfdp': self._mpfdp[self._frnum]}
)
# update status
self._mpkit.pool -= 1
self._mpkit.counter += 1
# start and record
proc.start()
self._frnum += 1
self._mpprc.append(proc)
# check buffer
if len(self._mpprc) >= CPU_CNT:
[proc.join() for proc in self._mpprc[:-4]]
del self._mpprc[:-4] | python | def _run_pipeline(self, multiprocessing):
if not self._flag_m:
raise UnsupportedCall(f"Extractor(engine={self._exeng})' has no attribute '_run_pipline'")
if not self._flag_q:
self._flag_q = True
warnings.warn("'Extractor(engine=pipeline)' does not support output; "
f"'fout={self._ofnm}' ignored", AttributeWarning, stacklevel=stacklevel())
self._frnum = 1 # frame number (revised)
self._expkg = multiprocessing # multiprocessing module
self._mpprc = list() # multiprocessing process list
self._mpfdp = collections.defaultdict(multiprocessing.Queue) # multiprocessing file pointer
self._mpmng = multiprocessing.Manager() # multiprocessing manager
self._mpkit = self._mpmng.Namespace() # multiprocessing work kit
self._mpkit.counter = 0 # work count (on duty)
self._mpkit.pool = 1 # work pool (ready)
self._mpkit.current = 1 # current frame number
self._mpkit.eof = False # EOF flag
self._mpkit.frames = dict() # frame storage
self._mpkit.trace = self._trace # flow tracer
self._mpkit.reassembly = copy.deepcopy(self._reasm) # reassembly buffers
# preparation
self.record_header()
self._mpfdp[0].put(self._gbhdr.length)
# extraction
while True:
# check EOF
if self._mpkit.eof:
self._update_eof()
break
# check counter
if self._mpkit.pool and self._mpkit.counter < CPU_CNT:
# update file offset
self._ifile.seek(self._mpfdp.pop(self._frnum-1).get(), os.SEEK_SET)
# create worker
# print(self._frnum, 'start')
proc = multiprocessing.Process(
target=self._pipeline_read_frame,
kwargs={'mpkit': self._mpkit, 'mpfdp': self._mpfdp[self._frnum]}
)
# update status
self._mpkit.pool -= 1
self._mpkit.counter += 1
# start and record
proc.start()
self._frnum += 1
self._mpprc.append(proc)
# check buffer
if len(self._mpprc) >= CPU_CNT:
[proc.join() for proc in self._mpprc[:-4]]
del self._mpprc[:-4] | [
"def",
"_run_pipeline",
"(",
"self",
",",
"multiprocessing",
")",
":",
"if",
"not",
"self",
".",
"_flag_m",
":",
"raise",
"UnsupportedCall",
"(",
"f\"Extractor(engine={self._exeng})' has no attribute '_run_pipline'\"",
")",
"if",
"not",
"self",
".",
"_flag_q",
":",
"self",
".",
"_flag_q",
"=",
"True",
"warnings",
".",
"warn",
"(",
"\"'Extractor(engine=pipeline)' does not support output; \"",
"f\"'fout={self._ofnm}' ignored\"",
",",
"AttributeWarning",
",",
"stacklevel",
"=",
"stacklevel",
"(",
")",
")",
"self",
".",
"_frnum",
"=",
"1",
"# frame number (revised)",
"self",
".",
"_expkg",
"=",
"multiprocessing",
"# multiprocessing module",
"self",
".",
"_mpprc",
"=",
"list",
"(",
")",
"# multiprocessing process list",
"self",
".",
"_mpfdp",
"=",
"collections",
".",
"defaultdict",
"(",
"multiprocessing",
".",
"Queue",
")",
"# multiprocessing file pointer",
"self",
".",
"_mpmng",
"=",
"multiprocessing",
".",
"Manager",
"(",
")",
"# multiprocessing manager",
"self",
".",
"_mpkit",
"=",
"self",
".",
"_mpmng",
".",
"Namespace",
"(",
")",
"# multiprocessing work kit",
"self",
".",
"_mpkit",
".",
"counter",
"=",
"0",
"# work count (on duty)",
"self",
".",
"_mpkit",
".",
"pool",
"=",
"1",
"# work pool (ready)",
"self",
".",
"_mpkit",
".",
"current",
"=",
"1",
"# current frame number",
"self",
".",
"_mpkit",
".",
"eof",
"=",
"False",
"# EOF flag",
"self",
".",
"_mpkit",
".",
"frames",
"=",
"dict",
"(",
")",
"# frame storage",
"self",
".",
"_mpkit",
".",
"trace",
"=",
"self",
".",
"_trace",
"# flow tracer",
"self",
".",
"_mpkit",
".",
"reassembly",
"=",
"copy",
".",
"deepcopy",
"(",
"self",
".",
"_reasm",
")",
"# reassembly buffers",
"# preparation",
"self",
".",
"record_header",
"(",
")",
"self",
".",
"_mpfdp",
"[",
"0",
"]",
".",
"put",
"(",
"self",
".",
"_gbhdr",
".",
"length",
")",
"# extraction",
"while",
"True",
":",
"# check EOF",
"if",
"self",
".",
"_mpkit",
".",
"eof",
":",
"self",
".",
"_update_eof",
"(",
")",
"break",
"# check counter",
"if",
"self",
".",
"_mpkit",
".",
"pool",
"and",
"self",
".",
"_mpkit",
".",
"counter",
"<",
"CPU_CNT",
":",
"# update file offset",
"self",
".",
"_ifile",
".",
"seek",
"(",
"self",
".",
"_mpfdp",
".",
"pop",
"(",
"self",
".",
"_frnum",
"-",
"1",
")",
".",
"get",
"(",
")",
",",
"os",
".",
"SEEK_SET",
")",
"# create worker",
"# print(self._frnum, 'start')",
"proc",
"=",
"multiprocessing",
".",
"Process",
"(",
"target",
"=",
"self",
".",
"_pipeline_read_frame",
",",
"kwargs",
"=",
"{",
"'mpkit'",
":",
"self",
".",
"_mpkit",
",",
"'mpfdp'",
":",
"self",
".",
"_mpfdp",
"[",
"self",
".",
"_frnum",
"]",
"}",
")",
"# update status",
"self",
".",
"_mpkit",
".",
"pool",
"-=",
"1",
"self",
".",
"_mpkit",
".",
"counter",
"+=",
"1",
"# start and record",
"proc",
".",
"start",
"(",
")",
"self",
".",
"_frnum",
"+=",
"1",
"self",
".",
"_mpprc",
".",
"append",
"(",
"proc",
")",
"# check buffer",
"if",
"len",
"(",
"self",
".",
"_mpprc",
")",
">=",
"CPU_CNT",
":",
"[",
"proc",
".",
"join",
"(",
")",
"for",
"proc",
"in",
"self",
".",
"_mpprc",
"[",
":",
"-",
"4",
"]",
"]",
"del",
"self",
".",
"_mpprc",
"[",
":",
"-",
"4",
"]"
] | Use pipeline multiprocessing to extract PCAP files. | [
"Use",
"pipeline",
"multiprocessing",
"to",
"extract",
"PCAP",
"files",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L916-L977 |
1,268 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._run_server | def _run_server(self, multiprocessing):
"""Use server multiprocessing to extract PCAP files."""
if not self._flag_m:
raise UnsupportedCall(f"Extractor(engine={self._exeng})' has no attribute '_run_server'")
if not self._flag_q:
self._flag_q = True
warnings.warn("'Extractor(engine=pipeline)' does not support output; "
f"'fout={self._ofnm}' ignored", AttributeWarning, stacklevel=stacklevel())
self._frnum = 1 # frame number (revised)
self._expkg = multiprocessing # multiprocessing module
self._mpsvc = NotImplemented # multiprocessing server process
self._mpprc = list() # multiprocessing process list
self._mpfdp = collections.defaultdict(multiprocessing.Queue) # multiprocessing file pointer
self._mpmng = multiprocessing.Manager() # multiprocessing manager
self._mpbuf = self._mpmng.dict() # multiprocessing frame dict
self._mpfrm = self._mpmng.list() # multiprocessing frame storage
self._mprsm = self._mpmng.list() # multiprocessing reassembly buffer
self._mpkit = self._mpmng.Namespace() # multiprocessing work kit
self._mpkit.counter = 0 # work count (on duty)
self._mpkit.pool = 1 # work pool (ready)
self._mpkit.eof = False # EOF flag
self._mpkit.trace = None # flow tracer
# preparation
self.record_header()
self._mpfdp[0].put(self._gbhdr.length)
self._mpsvc = multiprocessing.Process(
target=self._server_analyse_frame,
kwargs={'mpfrm': self._mpfrm, 'mprsm': self._mprsm, 'mpbuf': self._mpbuf, 'mpkit': self._mpkit}
)
self._mpsvc.start()
# extraction
while True:
# check EOF
if self._mpkit.eof:
self._update_eof()
break
# check counter
if self._mpkit.pool and self._mpkit.counter < CPU_CNT - 1:
# update file offset
self._ifile.seek(self._mpfdp.pop(self._frnum-1).get(), os.SEEK_SET)
# create worker
# print(self._frnum, 'start')
proc = multiprocessing.Process(
target=self._server_extract_frame,
kwargs={'mpkit': self._mpkit, 'mpbuf': self._mpbuf, 'mpfdp': self._mpfdp[self._frnum]}
)
# update status
self._mpkit.pool -= 1
self._mpkit.counter += 1
# start and record
proc.start()
self._frnum += 1
self._mpprc.append(proc)
# check buffer
if len(self._mpprc) >= CPU_CNT - 1:
[proc.join() for proc in self._mpprc[:-4]]
del self._mpprc[:-4] | python | def _run_server(self, multiprocessing):
if not self._flag_m:
raise UnsupportedCall(f"Extractor(engine={self._exeng})' has no attribute '_run_server'")
if not self._flag_q:
self._flag_q = True
warnings.warn("'Extractor(engine=pipeline)' does not support output; "
f"'fout={self._ofnm}' ignored", AttributeWarning, stacklevel=stacklevel())
self._frnum = 1 # frame number (revised)
self._expkg = multiprocessing # multiprocessing module
self._mpsvc = NotImplemented # multiprocessing server process
self._mpprc = list() # multiprocessing process list
self._mpfdp = collections.defaultdict(multiprocessing.Queue) # multiprocessing file pointer
self._mpmng = multiprocessing.Manager() # multiprocessing manager
self._mpbuf = self._mpmng.dict() # multiprocessing frame dict
self._mpfrm = self._mpmng.list() # multiprocessing frame storage
self._mprsm = self._mpmng.list() # multiprocessing reassembly buffer
self._mpkit = self._mpmng.Namespace() # multiprocessing work kit
self._mpkit.counter = 0 # work count (on duty)
self._mpkit.pool = 1 # work pool (ready)
self._mpkit.eof = False # EOF flag
self._mpkit.trace = None # flow tracer
# preparation
self.record_header()
self._mpfdp[0].put(self._gbhdr.length)
self._mpsvc = multiprocessing.Process(
target=self._server_analyse_frame,
kwargs={'mpfrm': self._mpfrm, 'mprsm': self._mprsm, 'mpbuf': self._mpbuf, 'mpkit': self._mpkit}
)
self._mpsvc.start()
# extraction
while True:
# check EOF
if self._mpkit.eof:
self._update_eof()
break
# check counter
if self._mpkit.pool and self._mpkit.counter < CPU_CNT - 1:
# update file offset
self._ifile.seek(self._mpfdp.pop(self._frnum-1).get(), os.SEEK_SET)
# create worker
# print(self._frnum, 'start')
proc = multiprocessing.Process(
target=self._server_extract_frame,
kwargs={'mpkit': self._mpkit, 'mpbuf': self._mpbuf, 'mpfdp': self._mpfdp[self._frnum]}
)
# update status
self._mpkit.pool -= 1
self._mpkit.counter += 1
# start and record
proc.start()
self._frnum += 1
self._mpprc.append(proc)
# check buffer
if len(self._mpprc) >= CPU_CNT - 1:
[proc.join() for proc in self._mpprc[:-4]]
del self._mpprc[:-4] | [
"def",
"_run_server",
"(",
"self",
",",
"multiprocessing",
")",
":",
"if",
"not",
"self",
".",
"_flag_m",
":",
"raise",
"UnsupportedCall",
"(",
"f\"Extractor(engine={self._exeng})' has no attribute '_run_server'\"",
")",
"if",
"not",
"self",
".",
"_flag_q",
":",
"self",
".",
"_flag_q",
"=",
"True",
"warnings",
".",
"warn",
"(",
"\"'Extractor(engine=pipeline)' does not support output; \"",
"f\"'fout={self._ofnm}' ignored\"",
",",
"AttributeWarning",
",",
"stacklevel",
"=",
"stacklevel",
"(",
")",
")",
"self",
".",
"_frnum",
"=",
"1",
"# frame number (revised)",
"self",
".",
"_expkg",
"=",
"multiprocessing",
"# multiprocessing module",
"self",
".",
"_mpsvc",
"=",
"NotImplemented",
"# multiprocessing server process",
"self",
".",
"_mpprc",
"=",
"list",
"(",
")",
"# multiprocessing process list",
"self",
".",
"_mpfdp",
"=",
"collections",
".",
"defaultdict",
"(",
"multiprocessing",
".",
"Queue",
")",
"# multiprocessing file pointer",
"self",
".",
"_mpmng",
"=",
"multiprocessing",
".",
"Manager",
"(",
")",
"# multiprocessing manager",
"self",
".",
"_mpbuf",
"=",
"self",
".",
"_mpmng",
".",
"dict",
"(",
")",
"# multiprocessing frame dict",
"self",
".",
"_mpfrm",
"=",
"self",
".",
"_mpmng",
".",
"list",
"(",
")",
"# multiprocessing frame storage",
"self",
".",
"_mprsm",
"=",
"self",
".",
"_mpmng",
".",
"list",
"(",
")",
"# multiprocessing reassembly buffer",
"self",
".",
"_mpkit",
"=",
"self",
".",
"_mpmng",
".",
"Namespace",
"(",
")",
"# multiprocessing work kit",
"self",
".",
"_mpkit",
".",
"counter",
"=",
"0",
"# work count (on duty)",
"self",
".",
"_mpkit",
".",
"pool",
"=",
"1",
"# work pool (ready)",
"self",
".",
"_mpkit",
".",
"eof",
"=",
"False",
"# EOF flag",
"self",
".",
"_mpkit",
".",
"trace",
"=",
"None",
"# flow tracer",
"# preparation",
"self",
".",
"record_header",
"(",
")",
"self",
".",
"_mpfdp",
"[",
"0",
"]",
".",
"put",
"(",
"self",
".",
"_gbhdr",
".",
"length",
")",
"self",
".",
"_mpsvc",
"=",
"multiprocessing",
".",
"Process",
"(",
"target",
"=",
"self",
".",
"_server_analyse_frame",
",",
"kwargs",
"=",
"{",
"'mpfrm'",
":",
"self",
".",
"_mpfrm",
",",
"'mprsm'",
":",
"self",
".",
"_mprsm",
",",
"'mpbuf'",
":",
"self",
".",
"_mpbuf",
",",
"'mpkit'",
":",
"self",
".",
"_mpkit",
"}",
")",
"self",
".",
"_mpsvc",
".",
"start",
"(",
")",
"# extraction",
"while",
"True",
":",
"# check EOF",
"if",
"self",
".",
"_mpkit",
".",
"eof",
":",
"self",
".",
"_update_eof",
"(",
")",
"break",
"# check counter",
"if",
"self",
".",
"_mpkit",
".",
"pool",
"and",
"self",
".",
"_mpkit",
".",
"counter",
"<",
"CPU_CNT",
"-",
"1",
":",
"# update file offset",
"self",
".",
"_ifile",
".",
"seek",
"(",
"self",
".",
"_mpfdp",
".",
"pop",
"(",
"self",
".",
"_frnum",
"-",
"1",
")",
".",
"get",
"(",
")",
",",
"os",
".",
"SEEK_SET",
")",
"# create worker",
"# print(self._frnum, 'start')",
"proc",
"=",
"multiprocessing",
".",
"Process",
"(",
"target",
"=",
"self",
".",
"_server_extract_frame",
",",
"kwargs",
"=",
"{",
"'mpkit'",
":",
"self",
".",
"_mpkit",
",",
"'mpbuf'",
":",
"self",
".",
"_mpbuf",
",",
"'mpfdp'",
":",
"self",
".",
"_mpfdp",
"[",
"self",
".",
"_frnum",
"]",
"}",
")",
"# update status",
"self",
".",
"_mpkit",
".",
"pool",
"-=",
"1",
"self",
".",
"_mpkit",
".",
"counter",
"+=",
"1",
"# start and record",
"proc",
".",
"start",
"(",
")",
"self",
".",
"_frnum",
"+=",
"1",
"self",
".",
"_mpprc",
".",
"append",
"(",
"proc",
")",
"# check buffer",
"if",
"len",
"(",
"self",
".",
"_mpprc",
")",
">=",
"CPU_CNT",
"-",
"1",
":",
"[",
"proc",
".",
"join",
"(",
")",
"for",
"proc",
"in",
"self",
".",
"_mpprc",
"[",
":",
"-",
"4",
"]",
"]",
"del",
"self",
".",
"_mpprc",
"[",
":",
"-",
"4",
"]"
] | Use server multiprocessing to extract PCAP files. | [
"Use",
"server",
"multiprocessing",
"to",
"extract",
"PCAP",
"files",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L1015-L1082 |
1,269 | JarryShaw/PyPCAPKit | src/foundation/extraction.py | Extractor._server_analyse_frame | def _server_analyse_frame(self, *, mpkit, mpfrm, mprsm, mpbuf):
"""Analyse frame."""
while True:
# fetch frame
# print(self._frnum, 'trying')
frame = mpbuf.pop(self._frnum, None)
if frame is EOFError:
break
if frame is None:
continue
# print(self._frnum, 'get')
self._default_read_frame(frame=frame)
mpfrm += self._frame
mprsm += self._reasm
mpkit.trace = copy.deepcopy(self._trace) | python | def _server_analyse_frame(self, *, mpkit, mpfrm, mprsm, mpbuf):
while True:
# fetch frame
# print(self._frnum, 'trying')
frame = mpbuf.pop(self._frnum, None)
if frame is EOFError:
break
if frame is None:
continue
# print(self._frnum, 'get')
self._default_read_frame(frame=frame)
mpfrm += self._frame
mprsm += self._reasm
mpkit.trace = copy.deepcopy(self._trace) | [
"def",
"_server_analyse_frame",
"(",
"self",
",",
"*",
",",
"mpkit",
",",
"mpfrm",
",",
"mprsm",
",",
"mpbuf",
")",
":",
"while",
"True",
":",
"# fetch frame",
"# print(self._frnum, 'trying')",
"frame",
"=",
"mpbuf",
".",
"pop",
"(",
"self",
".",
"_frnum",
",",
"None",
")",
"if",
"frame",
"is",
"EOFError",
":",
"break",
"if",
"frame",
"is",
"None",
":",
"continue",
"# print(self._frnum, 'get')",
"self",
".",
"_default_read_frame",
"(",
"frame",
"=",
"frame",
")",
"mpfrm",
"+=",
"self",
".",
"_frame",
"mprsm",
"+=",
"self",
".",
"_reasm",
"mpkit",
".",
"trace",
"=",
"copy",
".",
"deepcopy",
"(",
"self",
".",
"_trace",
")"
] | Analyse frame. | [
"Analyse",
"frame",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/extraction.py#L1104-L1119 |
1,270 | JarryShaw/PyPCAPKit | src/protocols/application/NotImplemented/httpv2.py | HTTPv2.read_http | def read_http(self, length):
"""Read Hypertext Transfer Protocol version 2.
Structure of HTTP/2 packet [RFC 7230]:
+-----------------------------------------------+
| Length (24) |
+---------------+---------------+---------------+
| Type (8) | Flags (8) |
+-+-------------+---------------+-------------------------------+
|R| Stream Identifier (31) |
+=+=============================================================+
| Frame Payload (0...) ...
+---------------------------------------------------------------+
"""
_plen = self._read_binary(3)
_type = self._read_unpack(1)
_flag = self._read_binary(1)
_stid = self._read_binary(4) | python | def read_http(self, length):
_plen = self._read_binary(3)
_type = self._read_unpack(1)
_flag = self._read_binary(1)
_stid = self._read_binary(4) | [
"def",
"read_http",
"(",
"self",
",",
"length",
")",
":",
"_plen",
"=",
"self",
".",
"_read_binary",
"(",
"3",
")",
"_type",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_flag",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"_stid",
"=",
"self",
".",
"_read_binary",
"(",
"4",
")"
] | Read Hypertext Transfer Protocol version 2.
Structure of HTTP/2 packet [RFC 7230]:
+-----------------------------------------------+
| Length (24) |
+---------------+---------------+---------------+
| Type (8) | Flags (8) |
+-+-------------+---------------+-------------------------------+
|R| Stream Identifier (31) |
+=+=============================================================+
| Frame Payload (0...) ...
+---------------------------------------------------------------+ | [
"Read",
"Hypertext",
"Transfer",
"Protocol",
"version",
"2",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/application/NotImplemented/httpv2.py#L57-L75 |
1,271 | JarryShaw/PyPCAPKit | src/foundation/traceflow.py | TraceFlow.make_fout | def make_fout(fout='./tmp', fmt='pcap'):
"""Make root path for output.
Positional arguments:
* fout -- str, root path for output
* fmt -- str, output format
Returns:
* output -- dumper of specified format
"""
if fmt == 'pcap': # output PCAP file
from pcapkit.dumpkit import PCAP as output
elif fmt == 'plist': # output PLIST file
from dictdumper import PLIST as output
elif fmt == 'json': # output JSON file
from dictdumper import JSON as output
elif fmt == 'tree': # output treeview text file
from dictdumper import Tree as output
fmt = 'txt'
elif fmt == 'html': # output JavaScript file
from dictdumper import JavaScript as output
fmt = 'js'
elif fmt == 'xml': # output XML file
from dictdumper import XML as output
else: # no output file
from pcapkit.dumpkit import NotImplementedIO as output
if fmt is not None:
warnings.warn(f'Unsupported output format: {fmt}; disabled file output feature',
FormatWarning, stacklevel=stacklevel())
return output, ''
try:
pathlib.Path(fout).mkdir(parents=True, exist_ok=True)
except FileExistsError as error:
if fmt is None:
warnings.warn(error.strerror, FileWarning, stacklevel=stacklevel())
else:
raise FileExists(*error.args) from None
return output, fmt | python | def make_fout(fout='./tmp', fmt='pcap'):
if fmt == 'pcap': # output PCAP file
from pcapkit.dumpkit import PCAP as output
elif fmt == 'plist': # output PLIST file
from dictdumper import PLIST as output
elif fmt == 'json': # output JSON file
from dictdumper import JSON as output
elif fmt == 'tree': # output treeview text file
from dictdumper import Tree as output
fmt = 'txt'
elif fmt == 'html': # output JavaScript file
from dictdumper import JavaScript as output
fmt = 'js'
elif fmt == 'xml': # output XML file
from dictdumper import XML as output
else: # no output file
from pcapkit.dumpkit import NotImplementedIO as output
if fmt is not None:
warnings.warn(f'Unsupported output format: {fmt}; disabled file output feature',
FormatWarning, stacklevel=stacklevel())
return output, ''
try:
pathlib.Path(fout).mkdir(parents=True, exist_ok=True)
except FileExistsError as error:
if fmt is None:
warnings.warn(error.strerror, FileWarning, stacklevel=stacklevel())
else:
raise FileExists(*error.args) from None
return output, fmt | [
"def",
"make_fout",
"(",
"fout",
"=",
"'./tmp'",
",",
"fmt",
"=",
"'pcap'",
")",
":",
"if",
"fmt",
"==",
"'pcap'",
":",
"# output PCAP file",
"from",
"pcapkit",
".",
"dumpkit",
"import",
"PCAP",
"as",
"output",
"elif",
"fmt",
"==",
"'plist'",
":",
"# output PLIST file",
"from",
"dictdumper",
"import",
"PLIST",
"as",
"output",
"elif",
"fmt",
"==",
"'json'",
":",
"# output JSON file",
"from",
"dictdumper",
"import",
"JSON",
"as",
"output",
"elif",
"fmt",
"==",
"'tree'",
":",
"# output treeview text file",
"from",
"dictdumper",
"import",
"Tree",
"as",
"output",
"fmt",
"=",
"'txt'",
"elif",
"fmt",
"==",
"'html'",
":",
"# output JavaScript file",
"from",
"dictdumper",
"import",
"JavaScript",
"as",
"output",
"fmt",
"=",
"'js'",
"elif",
"fmt",
"==",
"'xml'",
":",
"# output XML file",
"from",
"dictdumper",
"import",
"XML",
"as",
"output",
"else",
":",
"# no output file",
"from",
"pcapkit",
".",
"dumpkit",
"import",
"NotImplementedIO",
"as",
"output",
"if",
"fmt",
"is",
"not",
"None",
":",
"warnings",
".",
"warn",
"(",
"f'Unsupported output format: {fmt}; disabled file output feature'",
",",
"FormatWarning",
",",
"stacklevel",
"=",
"stacklevel",
"(",
")",
")",
"return",
"output",
",",
"''",
"try",
":",
"pathlib",
".",
"Path",
"(",
"fout",
")",
".",
"mkdir",
"(",
"parents",
"=",
"True",
",",
"exist_ok",
"=",
"True",
")",
"except",
"FileExistsError",
"as",
"error",
":",
"if",
"fmt",
"is",
"None",
":",
"warnings",
".",
"warn",
"(",
"error",
".",
"strerror",
",",
"FileWarning",
",",
"stacklevel",
"=",
"stacklevel",
"(",
")",
")",
"else",
":",
"raise",
"FileExists",
"(",
"*",
"error",
".",
"args",
")",
"from",
"None",
"return",
"output",
",",
"fmt"
] | Make root path for output.
Positional arguments:
* fout -- str, root path for output
* fmt -- str, output format
Returns:
* output -- dumper of specified format | [
"Make",
"root",
"path",
"for",
"output",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/traceflow.py#L55-L95 |
1,272 | JarryShaw/PyPCAPKit | src/foundation/traceflow.py | TraceFlow.dump | def dump(self, packet):
"""Dump frame to output files.
Positional arguments:
* packet -- dict, a flow packet
|-- (str) protocol -- data link type from global header
|-- (int) index -- frame number
|-- (Info) frame -- extracted frame info
|-- (bool) syn -- TCP synchronise (SYN) flag
|-- (bool) fin -- TCP finish (FIN) flag
|-- (str) src -- source IP
|-- (int) srcport -- TCP source port
|-- (str) dst -- destination IP
|-- (int) dstport -- TCP destination port
|-- (numbers.Real) timestamp -- frame timestamp
"""
# fetch flow label
output = self.trace(packet, _check=False, _output=True)
# dump files
output(packet['frame'], name=f"Frame {packet['index']}",
byteorder=self._endian, nanosecond=self._nnsecd) | python | def dump(self, packet):
# fetch flow label
output = self.trace(packet, _check=False, _output=True)
# dump files
output(packet['frame'], name=f"Frame {packet['index']}",
byteorder=self._endian, nanosecond=self._nnsecd) | [
"def",
"dump",
"(",
"self",
",",
"packet",
")",
":",
"# fetch flow label",
"output",
"=",
"self",
".",
"trace",
"(",
"packet",
",",
"_check",
"=",
"False",
",",
"_output",
"=",
"True",
")",
"# dump files",
"output",
"(",
"packet",
"[",
"'frame'",
"]",
",",
"name",
"=",
"f\"Frame {packet['index']}\"",
",",
"byteorder",
"=",
"self",
".",
"_endian",
",",
"nanosecond",
"=",
"self",
".",
"_nnsecd",
")"
] | Dump frame to output files.
Positional arguments:
* packet -- dict, a flow packet
|-- (str) protocol -- data link type from global header
|-- (int) index -- frame number
|-- (Info) frame -- extracted frame info
|-- (bool) syn -- TCP synchronise (SYN) flag
|-- (bool) fin -- TCP finish (FIN) flag
|-- (str) src -- source IP
|-- (int) srcport -- TCP source port
|-- (str) dst -- destination IP
|-- (int) dstport -- TCP destination port
|-- (numbers.Real) timestamp -- frame timestamp | [
"Dump",
"frame",
"to",
"output",
"files",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/traceflow.py#L97-L119 |
1,273 | JarryShaw/PyPCAPKit | src/foundation/traceflow.py | TraceFlow.trace | def trace(self, packet, *, _check=True, _output=False):
"""Trace packets.
Positional arguments:
* packet -- dict, a flow packet
Keyword arguments:
* _check -- bool, flag if run validations
* _output -- bool, flag if has formatted dumper
"""
self._newflg = True
if _check:
pkt_check(packet)
info = Info(packet)
# Buffer Identifier
BUFID = tuple(sorted([str(info.src), str(info.srcport), # pylint: disable=E1101
str(info.dst), str(info.dstport)])) # pylint: disable=E1101
# SYN = info.syn # Synchronise Flag (Establishment)
# Finish Flag (Termination)
FIN = info.fin # pylint: disable=E1101
# # when SYN is set, reset buffer of this seesion
# if SYN and BUFID in self._buffer:
# temp = self._buffer.pop(BUFID)
# temp['fpout'] = (self._fproot, self._fdpext)
# temp['index'] = tuple(temp['index'])
# self._stream.append(Info(temp))
# initialise buffer with BUFID
if BUFID not in self._buffer:
label = f'{info.src}_{info.srcport}-{info.dst}_{info.dstport}-{info.timestamp}' # pylint: disable=E1101
self._buffer[BUFID] = dict(
fpout=self._foutio(f'{self._fproot}/{label}.{self._fdpext}',
protocol=info.protocol), # pylint: disable=E1101
index=list(),
label=label,
)
# trace frame record
self._buffer[BUFID]['index'].append(info.index) # pylint: disable=E1101
fpout = self._buffer[BUFID]['fpout']
label = self._buffer[BUFID]['label']
# when FIN is set, submit buffer of this session
if FIN:
buf = self._buffer.pop(BUFID)
# fpout, label = buf['fpout'], buf['label']
if self._fdpext:
buf['fpout'] = f'{self._fproot}/{label}.{self._fdpext}'
else:
del buf['fpout']
buf['index'] = tuple(buf['index'])
self._stream.append(Info(buf))
# return label or output object
return fpout if _output else label | python | def trace(self, packet, *, _check=True, _output=False):
self._newflg = True
if _check:
pkt_check(packet)
info = Info(packet)
# Buffer Identifier
BUFID = tuple(sorted([str(info.src), str(info.srcport), # pylint: disable=E1101
str(info.dst), str(info.dstport)])) # pylint: disable=E1101
# SYN = info.syn # Synchronise Flag (Establishment)
# Finish Flag (Termination)
FIN = info.fin # pylint: disable=E1101
# # when SYN is set, reset buffer of this seesion
# if SYN and BUFID in self._buffer:
# temp = self._buffer.pop(BUFID)
# temp['fpout'] = (self._fproot, self._fdpext)
# temp['index'] = tuple(temp['index'])
# self._stream.append(Info(temp))
# initialise buffer with BUFID
if BUFID not in self._buffer:
label = f'{info.src}_{info.srcport}-{info.dst}_{info.dstport}-{info.timestamp}' # pylint: disable=E1101
self._buffer[BUFID] = dict(
fpout=self._foutio(f'{self._fproot}/{label}.{self._fdpext}',
protocol=info.protocol), # pylint: disable=E1101
index=list(),
label=label,
)
# trace frame record
self._buffer[BUFID]['index'].append(info.index) # pylint: disable=E1101
fpout = self._buffer[BUFID]['fpout']
label = self._buffer[BUFID]['label']
# when FIN is set, submit buffer of this session
if FIN:
buf = self._buffer.pop(BUFID)
# fpout, label = buf['fpout'], buf['label']
if self._fdpext:
buf['fpout'] = f'{self._fproot}/{label}.{self._fdpext}'
else:
del buf['fpout']
buf['index'] = tuple(buf['index'])
self._stream.append(Info(buf))
# return label or output object
return fpout if _output else label | [
"def",
"trace",
"(",
"self",
",",
"packet",
",",
"*",
",",
"_check",
"=",
"True",
",",
"_output",
"=",
"False",
")",
":",
"self",
".",
"_newflg",
"=",
"True",
"if",
"_check",
":",
"pkt_check",
"(",
"packet",
")",
"info",
"=",
"Info",
"(",
"packet",
")",
"# Buffer Identifier",
"BUFID",
"=",
"tuple",
"(",
"sorted",
"(",
"[",
"str",
"(",
"info",
".",
"src",
")",
",",
"str",
"(",
"info",
".",
"srcport",
")",
",",
"# pylint: disable=E1101",
"str",
"(",
"info",
".",
"dst",
")",
",",
"str",
"(",
"info",
".",
"dstport",
")",
"]",
")",
")",
"# pylint: disable=E1101",
"# SYN = info.syn # Synchronise Flag (Establishment)",
"# Finish Flag (Termination)",
"FIN",
"=",
"info",
".",
"fin",
"# pylint: disable=E1101",
"# # when SYN is set, reset buffer of this seesion",
"# if SYN and BUFID in self._buffer:",
"# temp = self._buffer.pop(BUFID)",
"# temp['fpout'] = (self._fproot, self._fdpext)",
"# temp['index'] = tuple(temp['index'])",
"# self._stream.append(Info(temp))",
"# initialise buffer with BUFID",
"if",
"BUFID",
"not",
"in",
"self",
".",
"_buffer",
":",
"label",
"=",
"f'{info.src}_{info.srcport}-{info.dst}_{info.dstport}-{info.timestamp}'",
"# pylint: disable=E1101",
"self",
".",
"_buffer",
"[",
"BUFID",
"]",
"=",
"dict",
"(",
"fpout",
"=",
"self",
".",
"_foutio",
"(",
"f'{self._fproot}/{label}.{self._fdpext}'",
",",
"protocol",
"=",
"info",
".",
"protocol",
")",
",",
"# pylint: disable=E1101",
"index",
"=",
"list",
"(",
")",
",",
"label",
"=",
"label",
",",
")",
"# trace frame record",
"self",
".",
"_buffer",
"[",
"BUFID",
"]",
"[",
"'index'",
"]",
".",
"append",
"(",
"info",
".",
"index",
")",
"# pylint: disable=E1101",
"fpout",
"=",
"self",
".",
"_buffer",
"[",
"BUFID",
"]",
"[",
"'fpout'",
"]",
"label",
"=",
"self",
".",
"_buffer",
"[",
"BUFID",
"]",
"[",
"'label'",
"]",
"# when FIN is set, submit buffer of this session",
"if",
"FIN",
":",
"buf",
"=",
"self",
".",
"_buffer",
".",
"pop",
"(",
"BUFID",
")",
"# fpout, label = buf['fpout'], buf['label']",
"if",
"self",
".",
"_fdpext",
":",
"buf",
"[",
"'fpout'",
"]",
"=",
"f'{self._fproot}/{label}.{self._fdpext}'",
"else",
":",
"del",
"buf",
"[",
"'fpout'",
"]",
"buf",
"[",
"'index'",
"]",
"=",
"tuple",
"(",
"buf",
"[",
"'index'",
"]",
")",
"self",
".",
"_stream",
".",
"append",
"(",
"Info",
"(",
"buf",
")",
")",
"# return label or output object",
"return",
"fpout",
"if",
"_output",
"else",
"label"
] | Trace packets.
Positional arguments:
* packet -- dict, a flow packet
Keyword arguments:
* _check -- bool, flag if run validations
* _output -- bool, flag if has formatted dumper | [
"Trace",
"packets",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/traceflow.py#L121-L178 |
1,274 | JarryShaw/PyPCAPKit | src/foundation/traceflow.py | TraceFlow.submit | def submit(self):
"""Submit traced TCP flows."""
self._newflg = False
ret = list()
for buf in self._buffer.values():
buf = copy.deepcopy(buf)
if self._fdpext:
buf['fpout'] = f"{self._fproot}/{buf['label']}.{self._fdpext}"
else:
del buf['fpout']
buf['index'] = tuple(buf['index'])
ret.append(Info(buf))
ret += self._stream
return tuple(ret) | python | def submit(self):
self._newflg = False
ret = list()
for buf in self._buffer.values():
buf = copy.deepcopy(buf)
if self._fdpext:
buf['fpout'] = f"{self._fproot}/{buf['label']}.{self._fdpext}"
else:
del buf['fpout']
buf['index'] = tuple(buf['index'])
ret.append(Info(buf))
ret += self._stream
return tuple(ret) | [
"def",
"submit",
"(",
"self",
")",
":",
"self",
".",
"_newflg",
"=",
"False",
"ret",
"=",
"list",
"(",
")",
"for",
"buf",
"in",
"self",
".",
"_buffer",
".",
"values",
"(",
")",
":",
"buf",
"=",
"copy",
".",
"deepcopy",
"(",
"buf",
")",
"if",
"self",
".",
"_fdpext",
":",
"buf",
"[",
"'fpout'",
"]",
"=",
"f\"{self._fproot}/{buf['label']}.{self._fdpext}\"",
"else",
":",
"del",
"buf",
"[",
"'fpout'",
"]",
"buf",
"[",
"'index'",
"]",
"=",
"tuple",
"(",
"buf",
"[",
"'index'",
"]",
")",
"ret",
".",
"append",
"(",
"Info",
"(",
"buf",
")",
")",
"ret",
"+=",
"self",
".",
"_stream",
"return",
"tuple",
"(",
"ret",
")"
] | Submit traced TCP flows. | [
"Submit",
"traced",
"TCP",
"flows",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/foundation/traceflow.py#L180-L193 |
1,275 | JarryShaw/PyPCAPKit | src/protocols/internet/ah.py | AH.read_ah | def read_ah(self, length, version, extension):
"""Read Authentication Header.
Structure of AH header [RFC 4302]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Payload Len | RESERVED |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Security Parameters Index (SPI) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence Number Field |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ Integrity Check Value-ICV (variable) |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 ah.next Next Header
1 8 ah.length Payload Length
2 16 - Reserved (must be zero)
4 32 ah.spi Security Parameters Index (SPI)
8 64 ah.seq Sequence Number Field
12 96 ah.icv Integrity Check Value (ICV)
"""
if length is None:
length = len(self)
_next = self._read_protos(1)
_plen = self._read_unpack(1)
_resv = self._read_fileng(2)
_scpi = self._read_unpack(4)
_dsnf = self._read_unpack(4)
# ICV length & value
_tlen = _plen * 4 - 2
_vlen = _tlen - 12
_chkv = self._read_fileng(_vlen)
ah = dict(
next=_next,
length=_tlen,
spi=_scpi,
seq=_dsnf,
icv=_chkv,
)
if version == 6:
_plen = 8 - (_tlen % 8)
elif version == 4:
_plen = 4 - (_tlen % 4)
else:
raise VersionError(f'Unknown IP version {version}')
if _plen: # explicit padding in need
padding = self._read_binary(_plen)
if any((int(bit, base=2) for bit in padding)):
raise ProtocolError(f'{self.alias}: invalid format')
length -= ah['length']
ah['packet'] = self._read_packet(header=ah['length'], payload=length)
if extension:
self._protos = None
return ah
return self._decode_next_layer(ah, _next, length) | python | def read_ah(self, length, version, extension):
if length is None:
length = len(self)
_next = self._read_protos(1)
_plen = self._read_unpack(1)
_resv = self._read_fileng(2)
_scpi = self._read_unpack(4)
_dsnf = self._read_unpack(4)
# ICV length & value
_tlen = _plen * 4 - 2
_vlen = _tlen - 12
_chkv = self._read_fileng(_vlen)
ah = dict(
next=_next,
length=_tlen,
spi=_scpi,
seq=_dsnf,
icv=_chkv,
)
if version == 6:
_plen = 8 - (_tlen % 8)
elif version == 4:
_plen = 4 - (_tlen % 4)
else:
raise VersionError(f'Unknown IP version {version}')
if _plen: # explicit padding in need
padding = self._read_binary(_plen)
if any((int(bit, base=2) for bit in padding)):
raise ProtocolError(f'{self.alias}: invalid format')
length -= ah['length']
ah['packet'] = self._read_packet(header=ah['length'], payload=length)
if extension:
self._protos = None
return ah
return self._decode_next_layer(ah, _next, length) | [
"def",
"read_ah",
"(",
"self",
",",
"length",
",",
"version",
",",
"extension",
")",
":",
"if",
"length",
"is",
"None",
":",
"length",
"=",
"len",
"(",
"self",
")",
"_next",
"=",
"self",
".",
"_read_protos",
"(",
"1",
")",
"_plen",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_resv",
"=",
"self",
".",
"_read_fileng",
"(",
"2",
")",
"_scpi",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
")",
"_dsnf",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
")",
"# ICV length & value",
"_tlen",
"=",
"_plen",
"*",
"4",
"-",
"2",
"_vlen",
"=",
"_tlen",
"-",
"12",
"_chkv",
"=",
"self",
".",
"_read_fileng",
"(",
"_vlen",
")",
"ah",
"=",
"dict",
"(",
"next",
"=",
"_next",
",",
"length",
"=",
"_tlen",
",",
"spi",
"=",
"_scpi",
",",
"seq",
"=",
"_dsnf",
",",
"icv",
"=",
"_chkv",
",",
")",
"if",
"version",
"==",
"6",
":",
"_plen",
"=",
"8",
"-",
"(",
"_tlen",
"%",
"8",
")",
"elif",
"version",
"==",
"4",
":",
"_plen",
"=",
"4",
"-",
"(",
"_tlen",
"%",
"4",
")",
"else",
":",
"raise",
"VersionError",
"(",
"f'Unknown IP version {version}'",
")",
"if",
"_plen",
":",
"# explicit padding in need",
"padding",
"=",
"self",
".",
"_read_binary",
"(",
"_plen",
")",
"if",
"any",
"(",
"(",
"int",
"(",
"bit",
",",
"base",
"=",
"2",
")",
"for",
"bit",
"in",
"padding",
")",
")",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: invalid format'",
")",
"length",
"-=",
"ah",
"[",
"'length'",
"]",
"ah",
"[",
"'packet'",
"]",
"=",
"self",
".",
"_read_packet",
"(",
"header",
"=",
"ah",
"[",
"'length'",
"]",
",",
"payload",
"=",
"length",
")",
"if",
"extension",
":",
"self",
".",
"_protos",
"=",
"None",
"return",
"ah",
"return",
"self",
".",
"_decode_next_layer",
"(",
"ah",
",",
"_next",
",",
"length",
")"
] | Read Authentication Header.
Structure of AH header [RFC 4302]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Payload Len | RESERVED |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Security Parameters Index (SPI) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence Number Field |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ Integrity Check Value-ICV (variable) |
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 ah.next Next Header
1 8 ah.length Payload Length
2 16 - Reserved (must be zero)
4 32 ah.spi Security Parameters Index (SPI)
8 64 ah.seq Sequence Number Field
12 96 ah.icv Integrity Check Value (ICV) | [
"Read",
"Authentication",
"Header",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ah.py#L91-L158 |
1,276 | JarryShaw/PyPCAPKit | src/protocols/link/ethernet.py | Ethernet.read_ethernet | def read_ethernet(self, length):
"""Read Ethernet Protocol.
Structure of Ethernet Protocol header [RFC 7042]:
Octets Bits Name Description
0 0 eth.dst Destination MAC Address
1 8 eth.src Source MAC Address
2 16 eth.type Protocol (Internet Layer)
"""
if length is None:
length = len(self)
_dstm = self._read_mac_addr()
_srcm = self._read_mac_addr()
_type = self._read_protos(2)
ethernet = dict(
dst=_dstm,
src=_srcm,
type=_type,
)
length -= 14
ethernet['packet'] = self._read_packet(header=14, payload=length)
return self._decode_next_layer(ethernet, _type, length) | python | def read_ethernet(self, length):
if length is None:
length = len(self)
_dstm = self._read_mac_addr()
_srcm = self._read_mac_addr()
_type = self._read_protos(2)
ethernet = dict(
dst=_dstm,
src=_srcm,
type=_type,
)
length -= 14
ethernet['packet'] = self._read_packet(header=14, payload=length)
return self._decode_next_layer(ethernet, _type, length) | [
"def",
"read_ethernet",
"(",
"self",
",",
"length",
")",
":",
"if",
"length",
"is",
"None",
":",
"length",
"=",
"len",
"(",
"self",
")",
"_dstm",
"=",
"self",
".",
"_read_mac_addr",
"(",
")",
"_srcm",
"=",
"self",
".",
"_read_mac_addr",
"(",
")",
"_type",
"=",
"self",
".",
"_read_protos",
"(",
"2",
")",
"ethernet",
"=",
"dict",
"(",
"dst",
"=",
"_dstm",
",",
"src",
"=",
"_srcm",
",",
"type",
"=",
"_type",
",",
")",
"length",
"-=",
"14",
"ethernet",
"[",
"'packet'",
"]",
"=",
"self",
".",
"_read_packet",
"(",
"header",
"=",
"14",
",",
"payload",
"=",
"length",
")",
"return",
"self",
".",
"_decode_next_layer",
"(",
"ethernet",
",",
"_type",
",",
"length",
")"
] | Read Ethernet Protocol.
Structure of Ethernet Protocol header [RFC 7042]:
Octets Bits Name Description
0 0 eth.dst Destination MAC Address
1 8 eth.src Source MAC Address
2 16 eth.type Protocol (Internet Layer) | [
"Read",
"Ethernet",
"Protocol",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/link/ethernet.py#L92-L118 |
1,277 | JarryShaw/PyPCAPKit | src/protocols/link/ethernet.py | Ethernet._read_mac_addr | def _read_mac_addr(self):
"""Read MAC address."""
_byte = self._read_fileng(6)
_addr = '-'.join(textwrap.wrap(_byte.hex(), 2))
return _addr | python | def _read_mac_addr(self):
_byte = self._read_fileng(6)
_addr = '-'.join(textwrap.wrap(_byte.hex(), 2))
return _addr | [
"def",
"_read_mac_addr",
"(",
"self",
")",
":",
"_byte",
"=",
"self",
".",
"_read_fileng",
"(",
"6",
")",
"_addr",
"=",
"'-'",
".",
"join",
"(",
"textwrap",
".",
"wrap",
"(",
"_byte",
".",
"hex",
"(",
")",
",",
"2",
")",
")",
"return",
"_addr"
] | Read MAC address. | [
"Read",
"MAC",
"address",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/link/ethernet.py#L135-L139 |
1,278 | JarryShaw/PyPCAPKit | src/toolkit/pyshark.py | packet2dict | def packet2dict(packet):
"""Convert PyShark packet into dict."""
dict_ = dict()
frame = packet.frame_info
for field in frame.field_names:
dict_[field] = getattr(frame, field)
tempdict = dict_
for layer in packet.layers:
tempdict[layer.layer_name.upper()] = dict()
tempdict = tempdict[layer.layer_name.upper()]
for field in layer.field_names:
tempdict[field] = getattr(layer, field)
return dict_ | python | def packet2dict(packet):
dict_ = dict()
frame = packet.frame_info
for field in frame.field_names:
dict_[field] = getattr(frame, field)
tempdict = dict_
for layer in packet.layers:
tempdict[layer.layer_name.upper()] = dict()
tempdict = tempdict[layer.layer_name.upper()]
for field in layer.field_names:
tempdict[field] = getattr(layer, field)
return dict_ | [
"def",
"packet2dict",
"(",
"packet",
")",
":",
"dict_",
"=",
"dict",
"(",
")",
"frame",
"=",
"packet",
".",
"frame_info",
"for",
"field",
"in",
"frame",
".",
"field_names",
":",
"dict_",
"[",
"field",
"]",
"=",
"getattr",
"(",
"frame",
",",
"field",
")",
"tempdict",
"=",
"dict_",
"for",
"layer",
"in",
"packet",
".",
"layers",
":",
"tempdict",
"[",
"layer",
".",
"layer_name",
".",
"upper",
"(",
")",
"]",
"=",
"dict",
"(",
")",
"tempdict",
"=",
"tempdict",
"[",
"layer",
".",
"layer_name",
".",
"upper",
"(",
")",
"]",
"for",
"field",
"in",
"layer",
".",
"field_names",
":",
"tempdict",
"[",
"field",
"]",
"=",
"getattr",
"(",
"layer",
",",
"field",
")",
"return",
"dict_"
] | Convert PyShark packet into dict. | [
"Convert",
"PyShark",
"packet",
"into",
"dict",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/toolkit/pyshark.py#L17-L31 |
1,279 | JarryShaw/PyPCAPKit | src/toolkit/scapy.py | packet2chain | def packet2chain(packet):
"""Fetch Scapy packet protocol chain."""
if scapy_all is None:
raise ModuleNotFound("No module named 'scapy'", name='scapy')
chain = [packet.name]
payload = packet.payload
while not isinstance(payload, scapy_all.packet.NoPayload):
chain.append(payload.name)
payload = payload.payload
return ':'.join(chain) | python | def packet2chain(packet):
if scapy_all is None:
raise ModuleNotFound("No module named 'scapy'", name='scapy')
chain = [packet.name]
payload = packet.payload
while not isinstance(payload, scapy_all.packet.NoPayload):
chain.append(payload.name)
payload = payload.payload
return ':'.join(chain) | [
"def",
"packet2chain",
"(",
"packet",
")",
":",
"if",
"scapy_all",
"is",
"None",
":",
"raise",
"ModuleNotFound",
"(",
"\"No module named 'scapy'\"",
",",
"name",
"=",
"'scapy'",
")",
"chain",
"=",
"[",
"packet",
".",
"name",
"]",
"payload",
"=",
"packet",
".",
"payload",
"while",
"not",
"isinstance",
"(",
"payload",
",",
"scapy_all",
".",
"packet",
".",
"NoPayload",
")",
":",
"chain",
".",
"append",
"(",
"payload",
".",
"name",
")",
"payload",
"=",
"payload",
".",
"payload",
"return",
"':'",
".",
"join",
"(",
"chain",
")"
] | Fetch Scapy packet protocol chain. | [
"Fetch",
"Scapy",
"packet",
"protocol",
"chain",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/toolkit/scapy.py#L36-L45 |
1,280 | JarryShaw/PyPCAPKit | src/toolkit/scapy.py | packet2dict | def packet2dict(packet, *, count=NotImplemented):
"""Convert Scapy packet into dict."""
if scapy_all is None:
raise ModuleNotFound("No module named 'scapy'", name='scapy')
def wrapper(packet):
dict_ = packet.fields
payload = packet.payload
if not isinstance(payload, scapy_all.packet.NoPayload):
dict_[payload.name] = wrapper(payload)
return dict_
return {
'packet': bytes(packet),
packet.name: wrapper(packet),
} | python | def packet2dict(packet, *, count=NotImplemented):
if scapy_all is None:
raise ModuleNotFound("No module named 'scapy'", name='scapy')
def wrapper(packet):
dict_ = packet.fields
payload = packet.payload
if not isinstance(payload, scapy_all.packet.NoPayload):
dict_[payload.name] = wrapper(payload)
return dict_
return {
'packet': bytes(packet),
packet.name: wrapper(packet),
} | [
"def",
"packet2dict",
"(",
"packet",
",",
"*",
",",
"count",
"=",
"NotImplemented",
")",
":",
"if",
"scapy_all",
"is",
"None",
":",
"raise",
"ModuleNotFound",
"(",
"\"No module named 'scapy'\"",
",",
"name",
"=",
"'scapy'",
")",
"def",
"wrapper",
"(",
"packet",
")",
":",
"dict_",
"=",
"packet",
".",
"fields",
"payload",
"=",
"packet",
".",
"payload",
"if",
"not",
"isinstance",
"(",
"payload",
",",
"scapy_all",
".",
"packet",
".",
"NoPayload",
")",
":",
"dict_",
"[",
"payload",
".",
"name",
"]",
"=",
"wrapper",
"(",
"payload",
")",
"return",
"dict_",
"return",
"{",
"'packet'",
":",
"bytes",
"(",
"packet",
")",
",",
"packet",
".",
"name",
":",
"wrapper",
"(",
"packet",
")",
",",
"}"
] | Convert Scapy packet into dict. | [
"Convert",
"Scapy",
"packet",
"into",
"dict",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/toolkit/scapy.py#L48-L63 |
1,281 | JarryShaw/PyPCAPKit | src/toolkit/scapy.py | tcp_reassembly | def tcp_reassembly(packet, *, count=NotImplemented):
"""Store data for TCP reassembly."""
if 'TCP' in packet:
ip = packet['IP'] if 'IP' in packet else packet['IPv6']
tcp = packet['TCP']
data = dict(
bufid=(
ipaddress.ip_address(ip.src), # source IP address
ipaddress.ip_address(ip.dst), # destination IP address
tcp.sport, # source port
tcp.dport, # destination port
),
num=count, # original packet range number
ack=tcp.ack, # acknowledgement
dsn=tcp.seq, # data sequence number
syn=bool(tcp.flags.S), # synchronise flag
fin=bool(tcp.flags.F), # finish flag
rst=bool(tcp.flags.R), # reset connection flag
payload=bytearray(bytes(tcp.payload)), # raw bytearray type payload
)
raw_len = len(tcp.payload) # payload length, header excludes
data['first'] = tcp.seq # this sequence number
data['last'] = tcp.seq + raw_len # next (wanted) sequence number
data['len'] = raw_len # payload length, header excludes
return True, data
return False, None | python | def tcp_reassembly(packet, *, count=NotImplemented):
if 'TCP' in packet:
ip = packet['IP'] if 'IP' in packet else packet['IPv6']
tcp = packet['TCP']
data = dict(
bufid=(
ipaddress.ip_address(ip.src), # source IP address
ipaddress.ip_address(ip.dst), # destination IP address
tcp.sport, # source port
tcp.dport, # destination port
),
num=count, # original packet range number
ack=tcp.ack, # acknowledgement
dsn=tcp.seq, # data sequence number
syn=bool(tcp.flags.S), # synchronise flag
fin=bool(tcp.flags.F), # finish flag
rst=bool(tcp.flags.R), # reset connection flag
payload=bytearray(bytes(tcp.payload)), # raw bytearray type payload
)
raw_len = len(tcp.payload) # payload length, header excludes
data['first'] = tcp.seq # this sequence number
data['last'] = tcp.seq + raw_len # next (wanted) sequence number
data['len'] = raw_len # payload length, header excludes
return True, data
return False, None | [
"def",
"tcp_reassembly",
"(",
"packet",
",",
"*",
",",
"count",
"=",
"NotImplemented",
")",
":",
"if",
"'TCP'",
"in",
"packet",
":",
"ip",
"=",
"packet",
"[",
"'IP'",
"]",
"if",
"'IP'",
"in",
"packet",
"else",
"packet",
"[",
"'IPv6'",
"]",
"tcp",
"=",
"packet",
"[",
"'TCP'",
"]",
"data",
"=",
"dict",
"(",
"bufid",
"=",
"(",
"ipaddress",
".",
"ip_address",
"(",
"ip",
".",
"src",
")",
",",
"# source IP address",
"ipaddress",
".",
"ip_address",
"(",
"ip",
".",
"dst",
")",
",",
"# destination IP address",
"tcp",
".",
"sport",
",",
"# source port",
"tcp",
".",
"dport",
",",
"# destination port",
")",
",",
"num",
"=",
"count",
",",
"# original packet range number",
"ack",
"=",
"tcp",
".",
"ack",
",",
"# acknowledgement",
"dsn",
"=",
"tcp",
".",
"seq",
",",
"# data sequence number",
"syn",
"=",
"bool",
"(",
"tcp",
".",
"flags",
".",
"S",
")",
",",
"# synchronise flag",
"fin",
"=",
"bool",
"(",
"tcp",
".",
"flags",
".",
"F",
")",
",",
"# finish flag",
"rst",
"=",
"bool",
"(",
"tcp",
".",
"flags",
".",
"R",
")",
",",
"# reset connection flag",
"payload",
"=",
"bytearray",
"(",
"bytes",
"(",
"tcp",
".",
"payload",
")",
")",
",",
"# raw bytearray type payload",
")",
"raw_len",
"=",
"len",
"(",
"tcp",
".",
"payload",
")",
"# payload length, header excludes",
"data",
"[",
"'first'",
"]",
"=",
"tcp",
".",
"seq",
"# this sequence number",
"data",
"[",
"'last'",
"]",
"=",
"tcp",
".",
"seq",
"+",
"raw_len",
"# next (wanted) sequence number",
"data",
"[",
"'len'",
"]",
"=",
"raw_len",
"# payload length, header excludes",
"return",
"True",
",",
"data",
"return",
"False",
",",
"None"
] | Store data for TCP reassembly. | [
"Store",
"data",
"for",
"TCP",
"reassembly",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/toolkit/scapy.py#L119-L144 |
1,282 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT.read_hopopt | def read_hopopt(self, length, extension):
"""Read IPv6 Hop-by-Hop Options.
Structure of HOPOPT header [RFC 8200]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Hdr Ext Len | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
| |
. .
. Options .
. .
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.next Next Header
1 8 hopopt.length Header Extensive Length
2 16 hopopt.options Options
"""
if length is None:
length = len(self)
_next = self._read_protos(1)
_hlen = self._read_unpack(1)
# _opts = self._read_fileng(_hlen*8+6)
hopopt = dict(
next=_next,
length=(_hlen + 1) * 8,
)
options = self._read_hopopt_options(_hlen * 8 + 6)
hopopt['options'] = options[0] # tuple of option acronyms
hopopt.update(options[1]) # merge option info to buffer
length -= hopopt['length']
hopopt['packet'] = self._read_packet(header=hopopt['length'], payload=length)
if extension:
self._protos = None
return hopopt
return self._decode_next_layer(hopopt, _next, length) | python | def read_hopopt(self, length, extension):
if length is None:
length = len(self)
_next = self._read_protos(1)
_hlen = self._read_unpack(1)
# _opts = self._read_fileng(_hlen*8+6)
hopopt = dict(
next=_next,
length=(_hlen + 1) * 8,
)
options = self._read_hopopt_options(_hlen * 8 + 6)
hopopt['options'] = options[0] # tuple of option acronyms
hopopt.update(options[1]) # merge option info to buffer
length -= hopopt['length']
hopopt['packet'] = self._read_packet(header=hopopt['length'], payload=length)
if extension:
self._protos = None
return hopopt
return self._decode_next_layer(hopopt, _next, length) | [
"def",
"read_hopopt",
"(",
"self",
",",
"length",
",",
"extension",
")",
":",
"if",
"length",
"is",
"None",
":",
"length",
"=",
"len",
"(",
"self",
")",
"_next",
"=",
"self",
".",
"_read_protos",
"(",
"1",
")",
"_hlen",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"# _opts = self._read_fileng(_hlen*8+6)",
"hopopt",
"=",
"dict",
"(",
"next",
"=",
"_next",
",",
"length",
"=",
"(",
"_hlen",
"+",
"1",
")",
"*",
"8",
",",
")",
"options",
"=",
"self",
".",
"_read_hopopt_options",
"(",
"_hlen",
"*",
"8",
"+",
"6",
")",
"hopopt",
"[",
"'options'",
"]",
"=",
"options",
"[",
"0",
"]",
"# tuple of option acronyms",
"hopopt",
".",
"update",
"(",
"options",
"[",
"1",
"]",
")",
"# merge option info to buffer",
"length",
"-=",
"hopopt",
"[",
"'length'",
"]",
"hopopt",
"[",
"'packet'",
"]",
"=",
"self",
".",
"_read_packet",
"(",
"header",
"=",
"hopopt",
"[",
"'length'",
"]",
",",
"payload",
"=",
"length",
")",
"if",
"extension",
":",
"self",
".",
"_protos",
"=",
"None",
"return",
"hopopt",
"return",
"self",
".",
"_decode_next_layer",
"(",
"hopopt",
",",
"_next",
",",
"length",
")"
] | Read IPv6 Hop-by-Hop Options.
Structure of HOPOPT header [RFC 8200]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Hdr Ext Len | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
| |
. .
. Options .
. .
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.next Next Header
1 8 hopopt.length Header Extensive Length
2 16 hopopt.options Options | [
"Read",
"IPv6",
"Hop",
"-",
"by",
"-",
"Hop",
"Options",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L147-L189 |
1,283 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_hopopt_options | def _read_hopopt_options(self, length):
"""Read HOPOPT options.
Positional arguments:
* length -- int, length of options
Returns:
* dict -- extracted HOPOPT options
"""
counter = 0 # length of read options
optkind = list() # option type list
options = dict() # dict of option data
while counter < length:
# break when eol triggered
code = self._read_unpack(1)
if not code:
break
# extract parameter
abbr, desc = _HOPOPT_OPT.get(code, ('none', 'Unassigned'))
data = _HOPOPT_PROC(abbr)(self, code, desc=desc)
enum = _OPT_TYPE.get(code)
# record parameter data
counter += data['length']
if enum in optkind:
if isinstance(options[abbr], tuple):
options[abbr] += (Info(data),)
else:
options[abbr] = (Info(options[abbr]), Info(data))
else:
optkind.append(enum)
options[abbr] = data
# check threshold
if counter != length:
raise ProtocolError(f'{self.alias}: invalid format')
return tuple(optkind), options | python | def _read_hopopt_options(self, length):
counter = 0 # length of read options
optkind = list() # option type list
options = dict() # dict of option data
while counter < length:
# break when eol triggered
code = self._read_unpack(1)
if not code:
break
# extract parameter
abbr, desc = _HOPOPT_OPT.get(code, ('none', 'Unassigned'))
data = _HOPOPT_PROC(abbr)(self, code, desc=desc)
enum = _OPT_TYPE.get(code)
# record parameter data
counter += data['length']
if enum in optkind:
if isinstance(options[abbr], tuple):
options[abbr] += (Info(data),)
else:
options[abbr] = (Info(options[abbr]), Info(data))
else:
optkind.append(enum)
options[abbr] = data
# check threshold
if counter != length:
raise ProtocolError(f'{self.alias}: invalid format')
return tuple(optkind), options | [
"def",
"_read_hopopt_options",
"(",
"self",
",",
"length",
")",
":",
"counter",
"=",
"0",
"# length of read options",
"optkind",
"=",
"list",
"(",
")",
"# option type list",
"options",
"=",
"dict",
"(",
")",
"# dict of option data",
"while",
"counter",
"<",
"length",
":",
"# break when eol triggered",
"code",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"not",
"code",
":",
"break",
"# extract parameter",
"abbr",
",",
"desc",
"=",
"_HOPOPT_OPT",
".",
"get",
"(",
"code",
",",
"(",
"'none'",
",",
"'Unassigned'",
")",
")",
"data",
"=",
"_HOPOPT_PROC",
"(",
"abbr",
")",
"(",
"self",
",",
"code",
",",
"desc",
"=",
"desc",
")",
"enum",
"=",
"_OPT_TYPE",
".",
"get",
"(",
"code",
")",
"# record parameter data",
"counter",
"+=",
"data",
"[",
"'length'",
"]",
"if",
"enum",
"in",
"optkind",
":",
"if",
"isinstance",
"(",
"options",
"[",
"abbr",
"]",
",",
"tuple",
")",
":",
"options",
"[",
"abbr",
"]",
"+=",
"(",
"Info",
"(",
"data",
")",
",",
")",
"else",
":",
"options",
"[",
"abbr",
"]",
"=",
"(",
"Info",
"(",
"options",
"[",
"abbr",
"]",
")",
",",
"Info",
"(",
"data",
")",
")",
"else",
":",
"optkind",
".",
"append",
"(",
"enum",
")",
"options",
"[",
"abbr",
"]",
"=",
"data",
"# check threshold",
"if",
"counter",
"!=",
"length",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: invalid format'",
")",
"return",
"tuple",
"(",
"optkind",
")",
",",
"options"
] | Read HOPOPT options.
Positional arguments:
* length -- int, length of options
Returns:
* dict -- extracted HOPOPT options | [
"Read",
"HOPOPT",
"options",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L234-L274 |
1,284 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_pad | def _read_opt_pad(self, code, *, desc):
"""Read HOPOPT padding options.
Structure of HOPOPT padding options [RFC 8200]:
* Pad1 Option:
+-+-+-+-+-+-+-+-+
| 0 |
+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.pad.type Option Type
0 0 hopopt.pad.type.value Option Number
0 0 hopopt.pad.type.action Action (00)
0 2 hopopt.pad.type.change Change Flag (0)
* PadN Option:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- - - - - - - - -
| 1 | Opt Data Len | Option Data
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- - - - - - - - -
Octets Bits Name Description
0 0 hopopt.pad.type Option Type
0 0 hopopt.pad.type.value Option Number
0 0 hopopt.pad.type.action Action (00)
0 2 hopopt.pad.type.change Change Flag (0)
1 8 hopopt.opt.length Length of Option Data
2 16 hopopt.pad.padding Padding
"""
_type = self._read_opt_type(code)
if code == 0:
opt = dict(
desc=desc,
type=_type,
length=1,
)
elif code == 1:
_size = self._read_unpack(1)
_padn = self._read_fileng(_size)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
padding=_padn,
)
else:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
return opt | python | def _read_opt_pad(self, code, *, desc):
_type = self._read_opt_type(code)
if code == 0:
opt = dict(
desc=desc,
type=_type,
length=1,
)
elif code == 1:
_size = self._read_unpack(1)
_padn = self._read_fileng(_size)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
padding=_padn,
)
else:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
return opt | [
"def",
"_read_opt_pad",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"if",
"code",
"==",
"0",
":",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"1",
",",
")",
"elif",
"code",
"==",
"1",
":",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_padn",
"=",
"self",
".",
"_read_fileng",
"(",
"_size",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"padding",
"=",
"_padn",
",",
")",
"else",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"return",
"opt"
] | Read HOPOPT padding options.
Structure of HOPOPT padding options [RFC 8200]:
* Pad1 Option:
+-+-+-+-+-+-+-+-+
| 0 |
+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.pad.type Option Type
0 0 hopopt.pad.type.value Option Number
0 0 hopopt.pad.type.action Action (00)
0 2 hopopt.pad.type.change Change Flag (0)
* PadN Option:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- - - - - - - - -
| 1 | Opt Data Len | Option Data
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- - - - - - - - -
Octets Bits Name Description
0 0 hopopt.pad.type Option Type
0 0 hopopt.pad.type.value Option Number
0 0 hopopt.pad.type.action Action (00)
0 2 hopopt.pad.type.change Change Flag (0)
1 8 hopopt.opt.length Length of Option Data
2 16 hopopt.pad.padding Padding | [
"Read",
"HOPOPT",
"padding",
"options",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L306-L356 |
1,285 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_tun | def _read_opt_tun(self, code, *, desc):
"""Read HOPOPT Tunnel Encapsulation Limit option.
Structure of HOPOPT Tunnel Encapsulation Limit option [RFC 2473]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header |Hdr Ext Len = 0| Opt Type = 4 |Opt Data Len=1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Tun Encap Lim |PadN Opt Type=1|Opt Data Len=1 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.tun.type Option Type
0 0 hopopt.tun.type.value Option Number
0 0 hopopt.tun.type.action Action (00)
0 2 hopopt.tun.type.change Change Flag (0)
1 8 hopopt.tun.length Length of Option Data
2 16 hopopt.tun.limit Tunnel Encapsulation Limit
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 1:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_limt = self._read_unpack(1)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
limit=_limt,
)
return opt | python | def _read_opt_tun(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 1:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_limt = self._read_unpack(1)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
limit=_limt,
)
return opt | [
"def",
"_read_opt_tun",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"_size",
"!=",
"1",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_limt",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"limit",
"=",
"_limt",
",",
")",
"return",
"opt"
] | Read HOPOPT Tunnel Encapsulation Limit option.
Structure of HOPOPT Tunnel Encapsulation Limit option [RFC 2473]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header |Hdr Ext Len = 0| Opt Type = 4 |Opt Data Len=1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Tun Encap Lim |PadN Opt Type=1|Opt Data Len=1 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.tun.type Option Type
0 0 hopopt.tun.type.value Option Number
0 0 hopopt.tun.type.action Action (00)
0 2 hopopt.tun.type.change Change Flag (0)
1 8 hopopt.tun.length Length of Option Data
2 16 hopopt.tun.limit Tunnel Encapsulation Limit | [
"Read",
"HOPOPT",
"Tunnel",
"Encapsulation",
"Limit",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L358-L390 |
1,286 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_ra | def _read_opt_ra(self, code, *, desc):
"""Read HOPOPT Router Alert option.
Structure of HOPOPT Router Alert option [RFC 2711]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|0 0 0|0 0 1 0 1|0 0 0 0 0 0 1 0| Value (2 octets) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.ra.type Option Type
0 0 hopopt.ra.type.value Option Number
0 0 hopopt.ra.type.action Action (00)
0 2 hopopt.ra.type.change Change Flag (0)
1 8 hopopt.opt.length Length of Option Data
2 16 hopopt.ra.value Value
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 2:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_rval = self._read_unpack(2)
if 4 <= _rval <= 35:
_dscp = f'Aggregated Reservation Nesting Level {_rval-4}' # [RFC 3175]
elif 36 <= _rval <= 67:
_dscp = f'QoS NSLP Aggregation Level {_rval-36}' # [RFC 5974]
elif 65503 <= _rval <= 65534:
_dscp = 'Reserved for experimental use' # [RFC 5350]
else:
_dscp = _ROUTER_ALERT.get(_rval, 'Unassigned')
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
value=_rval,
alert=_dscp,
)
return opt | python | def _read_opt_ra(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 2:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_rval = self._read_unpack(2)
if 4 <= _rval <= 35:
_dscp = f'Aggregated Reservation Nesting Level {_rval-4}' # [RFC 3175]
elif 36 <= _rval <= 67:
_dscp = f'QoS NSLP Aggregation Level {_rval-36}' # [RFC 5974]
elif 65503 <= _rval <= 65534:
_dscp = 'Reserved for experimental use' # [RFC 5350]
else:
_dscp = _ROUTER_ALERT.get(_rval, 'Unassigned')
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
value=_rval,
alert=_dscp,
)
return opt | [
"def",
"_read_opt_ra",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"_size",
"!=",
"2",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_rval",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"if",
"4",
"<=",
"_rval",
"<=",
"35",
":",
"_dscp",
"=",
"f'Aggregated Reservation Nesting Level {_rval-4}'",
"# [RFC 3175]",
"elif",
"36",
"<=",
"_rval",
"<=",
"67",
":",
"_dscp",
"=",
"f'QoS NSLP Aggregation Level {_rval-36}'",
"# [RFC 5974]",
"elif",
"65503",
"<=",
"_rval",
"<=",
"65534",
":",
"_dscp",
"=",
"'Reserved for experimental use'",
"# [RFC 5350]",
"else",
":",
"_dscp",
"=",
"_ROUTER_ALERT",
".",
"get",
"(",
"_rval",
",",
"'Unassigned'",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"value",
"=",
"_rval",
",",
"alert",
"=",
"_dscp",
",",
")",
"return",
"opt"
] | Read HOPOPT Router Alert option.
Structure of HOPOPT Router Alert option [RFC 2711]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|0 0 0|0 0 1 0 1|0 0 0 0 0 0 1 0| Value (2 octets) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.ra.type Option Type
0 0 hopopt.ra.type.value Option Number
0 0 hopopt.ra.type.action Action (00)
0 2 hopopt.ra.type.change Change Flag (0)
1 8 hopopt.opt.length Length of Option Data
2 16 hopopt.ra.value Value | [
"Read",
"HOPOPT",
"Router",
"Alert",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L392-L432 |
1,287 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_calipso | def _read_opt_calipso(self, code, *, desc):
"""Read HOPOPT CALIPSO option.
Structure of HOPOPT CALIPSO option [RFC 5570]:
------------------------------------------------------------
| Next Header | Hdr Ext Len | Option Type | Option Length|
+-------------+---------------+-------------+--------------+
| CALIPSO Domain of Interpretation |
+-------------+---------------+-------------+--------------+
| Cmpt Length | Sens Level | Checksum (CRC-16) |
+-------------+---------------+-------------+--------------+
| Compartment Bitmap (Optional; variable length) |
+-------------+---------------+-------------+--------------+
Octets Bits Name Description
0 0 hopopt.calipso.type Option Type
0 0 hopopt.calipso.type.value Option Number
0 0 hopopt.calipso.type.action Action (00)
0 2 hopopt.calipso.type.change Change Flag (0)
1 8 hopopt.calipso.length Length of Option Data
2 16 hopopt.calipso.domain CALIPSO Domain of Interpretation
6 48 hopopt.calipso.cmpt_len Cmpt Length
7 56 hopopt.calipso.level Sens Level
8 64 hopopt.calipso.chksum Checksum (CRC-16)
9 72 hopopt.calipso.bitmap Compartment Bitmap
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size < 8 and _size % 8 != 0:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_cmpt = self._read_unpack(4)
_clen = self._read_unpack(1)
if _clen % 2 != 0:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_sens = self._read_unpack(1)
_csum = self._read_fileng(2)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
domain=_cmpt,
cmpt_len=_clen * 4,
level=_sens,
chksum=_csum,
)
if _clen:
_bmap = list()
for _ in range(_clen // 2):
_bmap.append(self._read_binary(8))
opt['bitmap'] = tuple(_bmap)
_plen = _size - _clen * 4 - 8
if _plen:
self._read_fileng(_plen)
return opt | python | def _read_opt_calipso(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size < 8 and _size % 8 != 0:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_cmpt = self._read_unpack(4)
_clen = self._read_unpack(1)
if _clen % 2 != 0:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_sens = self._read_unpack(1)
_csum = self._read_fileng(2)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
domain=_cmpt,
cmpt_len=_clen * 4,
level=_sens,
chksum=_csum,
)
if _clen:
_bmap = list()
for _ in range(_clen // 2):
_bmap.append(self._read_binary(8))
opt['bitmap'] = tuple(_bmap)
_plen = _size - _clen * 4 - 8
if _plen:
self._read_fileng(_plen)
return opt | [
"def",
"_read_opt_calipso",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"_size",
"<",
"8",
"and",
"_size",
"%",
"8",
"!=",
"0",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_cmpt",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
")",
"_clen",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"_clen",
"%",
"2",
"!=",
"0",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_sens",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_csum",
"=",
"self",
".",
"_read_fileng",
"(",
"2",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"domain",
"=",
"_cmpt",
",",
"cmpt_len",
"=",
"_clen",
"*",
"4",
",",
"level",
"=",
"_sens",
",",
"chksum",
"=",
"_csum",
",",
")",
"if",
"_clen",
":",
"_bmap",
"=",
"list",
"(",
")",
"for",
"_",
"in",
"range",
"(",
"_clen",
"//",
"2",
")",
":",
"_bmap",
".",
"append",
"(",
"self",
".",
"_read_binary",
"(",
"8",
")",
")",
"opt",
"[",
"'bitmap'",
"]",
"=",
"tuple",
"(",
"_bmap",
")",
"_plen",
"=",
"_size",
"-",
"_clen",
"*",
"4",
"-",
"8",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"opt"
] | Read HOPOPT CALIPSO option.
Structure of HOPOPT CALIPSO option [RFC 5570]:
------------------------------------------------------------
| Next Header | Hdr Ext Len | Option Type | Option Length|
+-------------+---------------+-------------+--------------+
| CALIPSO Domain of Interpretation |
+-------------+---------------+-------------+--------------+
| Cmpt Length | Sens Level | Checksum (CRC-16) |
+-------------+---------------+-------------+--------------+
| Compartment Bitmap (Optional; variable length) |
+-------------+---------------+-------------+--------------+
Octets Bits Name Description
0 0 hopopt.calipso.type Option Type
0 0 hopopt.calipso.type.value Option Number
0 0 hopopt.calipso.type.action Action (00)
0 2 hopopt.calipso.type.change Change Flag (0)
1 8 hopopt.calipso.length Length of Option Data
2 16 hopopt.calipso.domain CALIPSO Domain of Interpretation
6 48 hopopt.calipso.cmpt_len Cmpt Length
7 56 hopopt.calipso.level Sens Level
8 64 hopopt.calipso.chksum Checksum (CRC-16)
9 72 hopopt.calipso.bitmap Compartment Bitmap | [
"Read",
"HOPOPT",
"CALIPSO",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L434-L492 |
1,288 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_smf_dpd | def _read_opt_smf_dpd(self, code, *, desc):
"""Read HOPOPT SMF_DPD option.
Structure of HOPOPT SMF_DPD option [RFC 5570]:
* IPv6 SMF_DPD Option Header in I-DPD mode
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
... |0|0|0| 01000 | Opt. Data Len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|0|TidTy| TidLen| TaggerId (optional) ... |
+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | Identifier ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.smf_dpd.type Option Type
0 0 hopopt.smf_dpd.type.value Option Number
0 0 hopopt.smf_dpd.type.action Action (00)
0 2 hopopt.smf_dpd.type.change Change Flag (0)
1 8 hopopt.smf_dpd.length Length of Option Data
2 16 hopopt.smf_dpd.dpd_type DPD Type (0)
2 17 hopopt.smf_dpd.tid_type TaggerID Type
2 20 hopopt.smf_dpd.tid_len TaggerID Length
3 24 hopopt.smf_dpd.tid TaggerID
? ? hopopt.smf_dpd.id Identifier
* IPv6 SMF_DPD Option Header in H-DPD Mode
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
... |0|0|0| OptType | Opt. Data Len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|1| Hash Assist Value (HAV) ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.smf_dpd.type Option Type
0 0 hopopt.smf_dpd.type.value Option Number
0 0 hopopt.smf_dpd.type.action Action (00)
0 2 hopopt.smf_dpd.type.change Change Flag (0)
1 8 hopopt.smf_dpd.length Length of Option Data
2 16 hopopt.smf_dpd.dpd_type DPD Type (1)
2 17 hopopt.smf_dpd.hav Hash Assist Value
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
_tidd = self._read_binary(1)
if _tidd[0] == '0':
_mode = 'I-DPD'
_tidt = _TID_TYPE.get(_tidd[1:4], 'Unassigned')
_tidl = int(_tidd[4:], base=2)
if _tidt == 'NULL':
if _tidl != 0:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_iden = self._read_fileng(_size-1)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
dpd_type=_mode,
tid_type=_tidt,
tid_len=_tidl,
id=_iden,
)
elif _tidt == 'IPv4':
if _tidl != 3:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_tidf = self._read_fileng(4)
_iden = self._read_fileng(_size-4)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
dpd_type=_mode,
tid_type=_tidt,
tid_len=_tidl,
tid=ipaddress.ip_address(_tidf),
id=_iden,
)
elif _tidt == 'IPv6':
if _tidl != 15:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_tidf = self._read_fileng(15)
_iden = self._read_fileng(_size-15)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
dpd_type=_mode,
tid_type=_tidt,
tid_len=_tidl,
tid=ipaddress.ip_address(_tidf),
id=_iden,
)
else:
_tidf = self._read_unpack(_tidl+1)
_iden = self._read_fileng(_size-_tidl-2)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
dpd_type=_mode,
tid_type=_tidt,
tid_len=_tidl,
tid=_tidf,
id=_iden,
)
elif _tidd[0] == '1':
_data = self._read_binary(_size-1)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
dpd_type=_mode,
tid_type=_tidt,
hav=_tidd[1:] + _data,
)
else:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
return opt | python | def _read_opt_smf_dpd(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
_tidd = self._read_binary(1)
if _tidd[0] == '0':
_mode = 'I-DPD'
_tidt = _TID_TYPE.get(_tidd[1:4], 'Unassigned')
_tidl = int(_tidd[4:], base=2)
if _tidt == 'NULL':
if _tidl != 0:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_iden = self._read_fileng(_size-1)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
dpd_type=_mode,
tid_type=_tidt,
tid_len=_tidl,
id=_iden,
)
elif _tidt == 'IPv4':
if _tidl != 3:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_tidf = self._read_fileng(4)
_iden = self._read_fileng(_size-4)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
dpd_type=_mode,
tid_type=_tidt,
tid_len=_tidl,
tid=ipaddress.ip_address(_tidf),
id=_iden,
)
elif _tidt == 'IPv6':
if _tidl != 15:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_tidf = self._read_fileng(15)
_iden = self._read_fileng(_size-15)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
dpd_type=_mode,
tid_type=_tidt,
tid_len=_tidl,
tid=ipaddress.ip_address(_tidf),
id=_iden,
)
else:
_tidf = self._read_unpack(_tidl+1)
_iden = self._read_fileng(_size-_tidl-2)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
dpd_type=_mode,
tid_type=_tidt,
tid_len=_tidl,
tid=_tidf,
id=_iden,
)
elif _tidd[0] == '1':
_data = self._read_binary(_size-1)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
dpd_type=_mode,
tid_type=_tidt,
hav=_tidd[1:] + _data,
)
else:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
return opt | [
"def",
"_read_opt_smf_dpd",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_tidd",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"if",
"_tidd",
"[",
"0",
"]",
"==",
"'0'",
":",
"_mode",
"=",
"'I-DPD'",
"_tidt",
"=",
"_TID_TYPE",
".",
"get",
"(",
"_tidd",
"[",
"1",
":",
"4",
"]",
",",
"'Unassigned'",
")",
"_tidl",
"=",
"int",
"(",
"_tidd",
"[",
"4",
":",
"]",
",",
"base",
"=",
"2",
")",
"if",
"_tidt",
"==",
"'NULL'",
":",
"if",
"_tidl",
"!=",
"0",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_iden",
"=",
"self",
".",
"_read_fileng",
"(",
"_size",
"-",
"1",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"dpd_type",
"=",
"_mode",
",",
"tid_type",
"=",
"_tidt",
",",
"tid_len",
"=",
"_tidl",
",",
"id",
"=",
"_iden",
",",
")",
"elif",
"_tidt",
"==",
"'IPv4'",
":",
"if",
"_tidl",
"!=",
"3",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_tidf",
"=",
"self",
".",
"_read_fileng",
"(",
"4",
")",
"_iden",
"=",
"self",
".",
"_read_fileng",
"(",
"_size",
"-",
"4",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"dpd_type",
"=",
"_mode",
",",
"tid_type",
"=",
"_tidt",
",",
"tid_len",
"=",
"_tidl",
",",
"tid",
"=",
"ipaddress",
".",
"ip_address",
"(",
"_tidf",
")",
",",
"id",
"=",
"_iden",
",",
")",
"elif",
"_tidt",
"==",
"'IPv6'",
":",
"if",
"_tidl",
"!=",
"15",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_tidf",
"=",
"self",
".",
"_read_fileng",
"(",
"15",
")",
"_iden",
"=",
"self",
".",
"_read_fileng",
"(",
"_size",
"-",
"15",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"dpd_type",
"=",
"_mode",
",",
"tid_type",
"=",
"_tidt",
",",
"tid_len",
"=",
"_tidl",
",",
"tid",
"=",
"ipaddress",
".",
"ip_address",
"(",
"_tidf",
")",
",",
"id",
"=",
"_iden",
",",
")",
"else",
":",
"_tidf",
"=",
"self",
".",
"_read_unpack",
"(",
"_tidl",
"+",
"1",
")",
"_iden",
"=",
"self",
".",
"_read_fileng",
"(",
"_size",
"-",
"_tidl",
"-",
"2",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"dpd_type",
"=",
"_mode",
",",
"tid_type",
"=",
"_tidt",
",",
"tid_len",
"=",
"_tidl",
",",
"tid",
"=",
"_tidf",
",",
"id",
"=",
"_iden",
",",
")",
"elif",
"_tidd",
"[",
"0",
"]",
"==",
"'1'",
":",
"_data",
"=",
"self",
".",
"_read_binary",
"(",
"_size",
"-",
"1",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"dpd_type",
"=",
"_mode",
",",
"tid_type",
"=",
"_tidt",
",",
"hav",
"=",
"_tidd",
"[",
"1",
":",
"]",
"+",
"_data",
",",
")",
"else",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"return",
"opt"
] | Read HOPOPT SMF_DPD option.
Structure of HOPOPT SMF_DPD option [RFC 5570]:
* IPv6 SMF_DPD Option Header in I-DPD mode
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
... |0|0|0| 01000 | Opt. Data Len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|0|TidTy| TidLen| TaggerId (optional) ... |
+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | Identifier ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.smf_dpd.type Option Type
0 0 hopopt.smf_dpd.type.value Option Number
0 0 hopopt.smf_dpd.type.action Action (00)
0 2 hopopt.smf_dpd.type.change Change Flag (0)
1 8 hopopt.smf_dpd.length Length of Option Data
2 16 hopopt.smf_dpd.dpd_type DPD Type (0)
2 17 hopopt.smf_dpd.tid_type TaggerID Type
2 20 hopopt.smf_dpd.tid_len TaggerID Length
3 24 hopopt.smf_dpd.tid TaggerID
? ? hopopt.smf_dpd.id Identifier
* IPv6 SMF_DPD Option Header in H-DPD Mode
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
... |0|0|0| OptType | Opt. Data Len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|1| Hash Assist Value (HAV) ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.smf_dpd.type Option Type
0 0 hopopt.smf_dpd.type.value Option Number
0 0 hopopt.smf_dpd.type.action Action (00)
0 2 hopopt.smf_dpd.type.change Change Flag (0)
1 8 hopopt.smf_dpd.length Length of Option Data
2 16 hopopt.smf_dpd.dpd_type DPD Type (1)
2 17 hopopt.smf_dpd.hav Hash Assist Value | [
"Read",
"HOPOPT",
"SMF_DPD",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L494-L622 |
1,289 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_pdm | def _read_opt_pdm(self, code, *, desc):
"""Read HOPOPT PDM option.
Structure of HOPOPT PDM option [RFC 8250]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option Type | Option Length | ScaleDTLR | ScaleDTLS |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| PSN This Packet | PSN Last Received |
|-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Delta Time Last Received | Delta Time Last Sent |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.pdm.type Option Type
0 0 hopopt.pdm.type.value Option Number
0 0 hopopt.pdm.type.action Action (00)
0 2 hopopt.pdm.type.change Change Flag (0)
1 8 hopopt.pdm.length Length of Option Data
2 16 hopopt.pdm.scaledtlr Scale Delta Time Last Received
3 24 hopopt.pdm.scaledtls Scale Delta Time Last Sent
4 32 hopopt.pdm.psntp Packet Sequence Number This Packet
6 48 hopopt.pdm.psnlr Packet Sequence Number Last Received
8 64 hopopt.pdm.deltatlr Delta Time Last Received
10 80 hopopt.pdm.deltatls Delta Time Last Sent
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 10:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_stlr = self._read_unpack(1)
_stls = self._read_unpack(1)
_psnt = self._read_unpack(2)
_psnl = self._read_unpack(2)
_dtlr = self._read_unpack(2)
_dtls = self._read_unpack(2)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
scaledtlr=datetime.timedelta(seconds=_stlr),
scaledtls=datetime.timedelta(seconds=_stls),
psntp=_psnt,
psnlr=_psnl,
deltatlr=datetime.timedelta(seconds=_dtlr),
deltatls=datetime.timedelta(seconds=_dtls),
)
return opt | python | def _read_opt_pdm(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 10:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_stlr = self._read_unpack(1)
_stls = self._read_unpack(1)
_psnt = self._read_unpack(2)
_psnl = self._read_unpack(2)
_dtlr = self._read_unpack(2)
_dtls = self._read_unpack(2)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
scaledtlr=datetime.timedelta(seconds=_stlr),
scaledtls=datetime.timedelta(seconds=_stls),
psntp=_psnt,
psnlr=_psnl,
deltatlr=datetime.timedelta(seconds=_dtlr),
deltatls=datetime.timedelta(seconds=_dtls),
)
return opt | [
"def",
"_read_opt_pdm",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"_size",
"!=",
"10",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_stlr",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_stls",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_psnt",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"_psnl",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"_dtlr",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"_dtls",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"scaledtlr",
"=",
"datetime",
".",
"timedelta",
"(",
"seconds",
"=",
"_stlr",
")",
",",
"scaledtls",
"=",
"datetime",
".",
"timedelta",
"(",
"seconds",
"=",
"_stls",
")",
",",
"psntp",
"=",
"_psnt",
",",
"psnlr",
"=",
"_psnl",
",",
"deltatlr",
"=",
"datetime",
".",
"timedelta",
"(",
"seconds",
"=",
"_dtlr",
")",
",",
"deltatls",
"=",
"datetime",
".",
"timedelta",
"(",
"seconds",
"=",
"_dtls",
")",
",",
")",
"return",
"opt"
] | Read HOPOPT PDM option.
Structure of HOPOPT PDM option [RFC 8250]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option Type | Option Length | ScaleDTLR | ScaleDTLS |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| PSN This Packet | PSN Last Received |
|-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Delta Time Last Received | Delta Time Last Sent |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.pdm.type Option Type
0 0 hopopt.pdm.type.value Option Number
0 0 hopopt.pdm.type.action Action (00)
0 2 hopopt.pdm.type.change Change Flag (0)
1 8 hopopt.pdm.length Length of Option Data
2 16 hopopt.pdm.scaledtlr Scale Delta Time Last Received
3 24 hopopt.pdm.scaledtls Scale Delta Time Last Sent
4 32 hopopt.pdm.psntp Packet Sequence Number This Packet
6 48 hopopt.pdm.psnlr Packet Sequence Number Last Received
8 64 hopopt.pdm.deltatlr Delta Time Last Received
10 80 hopopt.pdm.deltatls Delta Time Last Sent | [
"Read",
"HOPOPT",
"PDM",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L624-L675 |
1,290 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_qs | def _read_opt_qs(self, code, *, desc):
"""Read HOPOPT Quick Start option.
Structure of HOPOPT Quick-Start option [RFC 4782]:
* A Quick-Start Request.
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option | Length=6 | Func. | Rate | QS TTL |
| | | 0000 |Request| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| QS Nonce | R |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* Report of Approved Rate.
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option | Length=6 | Func. | Rate | Not Used |
| | | 1000 | Report| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| QS Nonce | R |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.qs.type Option Type
0 0 hopopt.qs.type.value Option Number
0 0 hopopt.qs.type.action Action (00)
0 2 hopopt.qs.type.change Change Flag (1)
1 8 hopopt.qs.length Length of Option Data
2 16 hopopt.qs.func Function (0/8)
2 20 hopopt.qs.rate Rate Request / Report (in Kbps)
3 24 hopopt.qs.ttl QS TTL / None
4 32 hopopt.qs.nounce QS Nounce
7 62 - Reserved
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 6:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_fcrr = self._read_binary(1)
_func = int(_fcrr[:4], base=2)
_rate = int(_fcrr[4:], base=2)
_ttlv = self._read_unpack(1)
_nonr = self._read_binary(4)
_qsnn = int(_nonr[:30], base=2)
if _func != 0 and _func != 8:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
data = dict(
type=_type,
length=_size + 2,
func=_QS_FUNC.get(_func),
rate=40000 * (2 ** _rate) / 1000,
ttl=None if _func else _rate,
nounce=_qsnn,
)
return data | python | def _read_opt_qs(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 6:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_fcrr = self._read_binary(1)
_func = int(_fcrr[:4], base=2)
_rate = int(_fcrr[4:], base=2)
_ttlv = self._read_unpack(1)
_nonr = self._read_binary(4)
_qsnn = int(_nonr[:30], base=2)
if _func != 0 and _func != 8:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
data = dict(
type=_type,
length=_size + 2,
func=_QS_FUNC.get(_func),
rate=40000 * (2 ** _rate) / 1000,
ttl=None if _func else _rate,
nounce=_qsnn,
)
return data | [
"def",
"_read_opt_qs",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"_size",
"!=",
"6",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_fcrr",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"_func",
"=",
"int",
"(",
"_fcrr",
"[",
":",
"4",
"]",
",",
"base",
"=",
"2",
")",
"_rate",
"=",
"int",
"(",
"_fcrr",
"[",
"4",
":",
"]",
",",
"base",
"=",
"2",
")",
"_ttlv",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_nonr",
"=",
"self",
".",
"_read_binary",
"(",
"4",
")",
"_qsnn",
"=",
"int",
"(",
"_nonr",
"[",
":",
"30",
"]",
",",
"base",
"=",
"2",
")",
"if",
"_func",
"!=",
"0",
"and",
"_func",
"!=",
"8",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"data",
"=",
"dict",
"(",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"func",
"=",
"_QS_FUNC",
".",
"get",
"(",
"_func",
")",
",",
"rate",
"=",
"40000",
"*",
"(",
"2",
"**",
"_rate",
")",
"/",
"1000",
",",
"ttl",
"=",
"None",
"if",
"_func",
"else",
"_rate",
",",
"nounce",
"=",
"_qsnn",
",",
")",
"return",
"data"
] | Read HOPOPT Quick Start option.
Structure of HOPOPT Quick-Start option [RFC 4782]:
* A Quick-Start Request.
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option | Length=6 | Func. | Rate | QS TTL |
| | | 0000 |Request| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| QS Nonce | R |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* Report of Approved Rate.
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option | Length=6 | Func. | Rate | Not Used |
| | | 1000 | Report| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| QS Nonce | R |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.qs.type Option Type
0 0 hopopt.qs.type.value Option Number
0 0 hopopt.qs.type.action Action (00)
0 2 hopopt.qs.type.change Change Flag (1)
1 8 hopopt.qs.length Length of Option Data
2 16 hopopt.qs.func Function (0/8)
2 20 hopopt.qs.rate Rate Request / Report (in Kbps)
3 24 hopopt.qs.ttl QS TTL / None
4 32 hopopt.qs.nounce QS Nounce
7 62 - Reserved | [
"Read",
"HOPOPT",
"Quick",
"Start",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L677-L737 |
1,291 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_rpl | def _read_opt_rpl(self, code, *, desc):
"""Read HOPOPT RPL option.
Structure of HOPOPT RPL option [RFC 6553]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option Type | Opt Data Len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|O|R|F|0|0|0|0|0| RPLInstanceID | SenderRank |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| (sub-TLVs) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.rpl.type Option Type
0 0 hopopt.rpl.type.value Option Number
0 0 hopopt.rpl.type.action Action (01)
0 2 hopopt.rpl.type.change Change Flag (1)
1 8 hopopt.rpl.length Length of Option Data
2 16 hopopt.rpl.flags RPL Option Flags
2 16 hopopt.rpl.flags.down Down Flag
2 17 hopopt.rpl.flags.rank_error Rank-Error Flag
2 18 hopopt.rpl.flags.fwd_error Forwarding-Error Flag
3 24 hopopt.rpl.id RPLInstanceID
4 32 hopopt.rpl.rank SenderRank
6 48 hopopt.rpl.data Sub-TLVs
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size < 4:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_flag = self._read_binary(1)
_rpld = self._read_unpack(1)
_rank = self._read_unpack(2)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
flags=dict(
down=True if int(_flag[0], base=2) else False,
rank_error=True if int(_flag[1], base=2) else False,
fwd_error=True if int(_flag[2], base=2) else False,
),
id=_rpld,
rank=_rank,
)
if _size > 4:
opt['data'] = self._read_fileng(_size-4)
return opt | python | def _read_opt_rpl(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size < 4:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_flag = self._read_binary(1)
_rpld = self._read_unpack(1)
_rank = self._read_unpack(2)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
flags=dict(
down=True if int(_flag[0], base=2) else False,
rank_error=True if int(_flag[1], base=2) else False,
fwd_error=True if int(_flag[2], base=2) else False,
),
id=_rpld,
rank=_rank,
)
if _size > 4:
opt['data'] = self._read_fileng(_size-4)
return opt | [
"def",
"_read_opt_rpl",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"_size",
"<",
"4",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_flag",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"_rpld",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_rank",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"flags",
"=",
"dict",
"(",
"down",
"=",
"True",
"if",
"int",
"(",
"_flag",
"[",
"0",
"]",
",",
"base",
"=",
"2",
")",
"else",
"False",
",",
"rank_error",
"=",
"True",
"if",
"int",
"(",
"_flag",
"[",
"1",
"]",
",",
"base",
"=",
"2",
")",
"else",
"False",
",",
"fwd_error",
"=",
"True",
"if",
"int",
"(",
"_flag",
"[",
"2",
"]",
",",
"base",
"=",
"2",
")",
"else",
"False",
",",
")",
",",
"id",
"=",
"_rpld",
",",
"rank",
"=",
"_rank",
",",
")",
"if",
"_size",
">",
"4",
":",
"opt",
"[",
"'data'",
"]",
"=",
"self",
".",
"_read_fileng",
"(",
"_size",
"-",
"4",
")",
"return",
"opt"
] | Read HOPOPT RPL option.
Structure of HOPOPT RPL option [RFC 6553]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option Type | Opt Data Len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|O|R|F|0|0|0|0|0| RPLInstanceID | SenderRank |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| (sub-TLVs) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.rpl.type Option Type
0 0 hopopt.rpl.type.value Option Number
0 0 hopopt.rpl.type.action Action (01)
0 2 hopopt.rpl.type.change Change Flag (1)
1 8 hopopt.rpl.length Length of Option Data
2 16 hopopt.rpl.flags RPL Option Flags
2 16 hopopt.rpl.flags.down Down Flag
2 17 hopopt.rpl.flags.rank_error Rank-Error Flag
2 18 hopopt.rpl.flags.fwd_error Forwarding-Error Flag
3 24 hopopt.rpl.id RPLInstanceID
4 32 hopopt.rpl.rank SenderRank
6 48 hopopt.rpl.data Sub-TLVs | [
"Read",
"HOPOPT",
"RPL",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L739-L792 |
1,292 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_ilnp | def _read_opt_ilnp(self, code, *, desc):
"""Read HOPOPT ILNP Nonce option.
Structure of HOPOPT ILNP Nonce option [RFC 6744]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Hdr Ext Len | Option Type | Option Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ Nonce Value /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.ilnp.type Option Type
0 0 hopopt.ilnp.type.value Option Number
0 0 hopopt.ilnp.type.action Action (10)
0 2 hopopt.ilnp.type.change Change Flag (0)
1 8 hopopt.ilnp.length Length of Option Data
2 16 hopopt.ilnp.value Nonce Value
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
_nval = self._read_fileng(_size)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
value=_nval,
)
return opt | python | def _read_opt_ilnp(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
_nval = self._read_fileng(_size)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
value=_nval,
)
return opt | [
"def",
"_read_opt_ilnp",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_nval",
"=",
"self",
".",
"_read_fileng",
"(",
"_size",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"value",
"=",
"_nval",
",",
")",
"return",
"opt"
] | Read HOPOPT ILNP Nonce option.
Structure of HOPOPT ILNP Nonce option [RFC 6744]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Hdr Ext Len | Option Type | Option Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/ Nonce Value /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.ilnp.type Option Type
0 0 hopopt.ilnp.type.value Option Number
0 0 hopopt.ilnp.type.action Action (10)
0 2 hopopt.ilnp.type.change Change Flag (0)
1 8 hopopt.ilnp.length Length of Option Data
2 16 hopopt.ilnp.value Nonce Value | [
"Read",
"HOPOPT",
"ILNP",
"Nonce",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L865-L897 |
1,293 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_lio | def _read_opt_lio(self, code, *, desc):
"""Read HOPOPT Line-Identification option.
Structure of HOPOPT Line-Identification option [RFC 6788]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option Type | Option Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| LineIDLen | Line ID...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.lio.type Option Type
0 0 hopopt.lio.type.value Option Number
0 0 hopopt.lio.type.action Action (10)
0 2 hopopt.lio.type.change Change Flag (0)
1 8 hopopt.lio.length Length of Option Data
2 16 hopopt.lio.lid_len Line ID Length
3 24 hopopt.lio.lid Line ID
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
_llen = self._read_unpack(1)
_line = self._read_fileng(_llen)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
lid_len=_llen,
lid=_line,
)
_plen = _size - _llen
if _plen:
self._read_fileng(_plen)
return opt | python | def _read_opt_lio(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
_llen = self._read_unpack(1)
_line = self._read_fileng(_llen)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
lid_len=_llen,
lid=_line,
)
_plen = _size - _llen
if _plen:
self._read_fileng(_plen)
return opt | [
"def",
"_read_opt_lio",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_llen",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_line",
"=",
"self",
".",
"_read_fileng",
"(",
"_llen",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"lid_len",
"=",
"_llen",
",",
"lid",
"=",
"_line",
",",
")",
"_plen",
"=",
"_size",
"-",
"_llen",
"if",
"_plen",
":",
"self",
".",
"_read_fileng",
"(",
"_plen",
")",
"return",
"opt"
] | Read HOPOPT Line-Identification option.
Structure of HOPOPT Line-Identification option [RFC 6788]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option Type | Option Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| LineIDLen | Line ID...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.lio.type Option Type
0 0 hopopt.lio.type.value Option Number
0 0 hopopt.lio.type.action Action (10)
0 2 hopopt.lio.type.change Change Flag (0)
1 8 hopopt.lio.length Length of Option Data
2 16 hopopt.lio.lid_len Line ID Length
3 24 hopopt.lio.lid Line ID | [
"Read",
"HOPOPT",
"Line",
"-",
"Identification",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L899-L938 |
1,294 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_jumbo | def _read_opt_jumbo(self, code, *, desc):
"""Read HOPOPT Jumbo Payload option.
Structure of HOPOPT Jumbo Payload option [RFC 2675]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option Type | Opt Data Len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Jumbo Payload Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.jumbo.type Option Type
0 0 hopopt.jumbo.type.value Option Number
0 0 hopopt.jumbo.type.action Action (11)
0 2 hopopt.jumbo.type.change Change Flag (0)
1 8 hopopt.jumbo.length Length of Option Data
2 16 hopopt.jumbo.payload_len Jumbo Payload Length
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 4:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_jlen = self._read_unpack(4)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
payload_len=_jlen,
)
return opt | python | def _read_opt_jumbo(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 4:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_jlen = self._read_unpack(4)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
payload_len=_jlen,
)
return opt | [
"def",
"_read_opt_jumbo",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"_size",
"!=",
"4",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_jlen",
"=",
"self",
".",
"_read_unpack",
"(",
"4",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"payload_len",
"=",
"_jlen",
",",
")",
"return",
"opt"
] | Read HOPOPT Jumbo Payload option.
Structure of HOPOPT Jumbo Payload option [RFC 2675]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option Type | Opt Data Len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Jumbo Payload Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.jumbo.type Option Type
0 0 hopopt.jumbo.type.value Option Number
0 0 hopopt.jumbo.type.action Action (11)
0 2 hopopt.jumbo.type.change Change Flag (0)
1 8 hopopt.jumbo.length Length of Option Data
2 16 hopopt.jumbo.payload_len Jumbo Payload Length | [
"Read",
"HOPOPT",
"Jumbo",
"Payload",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L940-L972 |
1,295 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_home | def _read_opt_home(self, code, *, desc):
"""Read HOPOPT Home Address option.
Structure of HOPOPT Home Address option [RFC 6275]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option Type | Option Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Home Address +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.home.type Option Type
0 0 hopopt.home.type.value Option Number
0 0 hopopt.home.type.action Action (11)
0 2 hopopt.home.type.change Change Flag (0)
1 8 hopopt.home.length Length of Option Data
2 16 hopopt.home.ip Home Address
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 16:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_addr = self._read_fileng(16)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
ip=ipaddress.ip_address(_addr),
)
return opt | python | def _read_opt_home(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 16:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_addr = self._read_fileng(16)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
ip=ipaddress.ip_address(_addr),
)
return opt | [
"def",
"_read_opt_home",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"_size",
"!=",
"16",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_addr",
"=",
"self",
".",
"_read_fileng",
"(",
"16",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"ip",
"=",
"ipaddress",
".",
"ip_address",
"(",
"_addr",
")",
",",
")",
"return",
"opt"
] | Read HOPOPT Home Address option.
Structure of HOPOPT Home Address option [RFC 6275]:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option Type | Option Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Home Address +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.home.type Option Type
0 0 hopopt.home.type.value Option Number
0 0 hopopt.home.type.action Action (11)
0 2 hopopt.home.type.change Change Flag (0)
1 8 hopopt.home.length Length of Option Data
2 16 hopopt.home.ip Home Address | [
"Read",
"HOPOPT",
"Home",
"Address",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L974-L1014 |
1,296 | JarryShaw/PyPCAPKit | src/protocols/internet/hopopt.py | HOPOPT._read_opt_ip_dff | def _read_opt_ip_dff(self, code, *, desc):
"""Read HOPOPT IP_DFF option.
Structure of HOPOPT IP_DFF option [RFC 6971]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Hdr Ext Len | OptTypeDFF | OptDataLenDFF |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|VER|D|R|0|0|0|0| Sequence Number | Pad1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.ip_dff.type Option Type
0 0 hopopt.ip_dff.type.value Option Number
0 0 hopopt.ip_dff.type.action Action (11)
0 2 hopopt.ip_dff.type.change Change Flag (1)
1 8 hopopt.ip_dff.length Length of Option Data
2 16 hopopt.ip_dff.version Version
2 18 hopopt.ip_dff.flags Flags
2 18 hopopt.ip_dff.flags.dup DUP Flag
2 19 hopopt.ip_dff.flags.ret RET Flag
2 20 - Reserved
3 24 hopopt.ip_dff.seq Sequence Number
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 2:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_verf = self._read_binary(1)
_seqn = self._read_unpack(2)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
version=_verf[:2],
flags=dict(
dup=True if int(_verf[2], base=2) else False,
ret=True if int(_verf[3], base=2) else False,
),
seq=_seqn,
)
return opt | python | def _read_opt_ip_dff(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
if _size != 2:
raise ProtocolError(f'{self.alias}: [Optno {code}] invalid format')
_verf = self._read_binary(1)
_seqn = self._read_unpack(2)
opt = dict(
desc=desc,
type=_type,
length=_size + 2,
version=_verf[:2],
flags=dict(
dup=True if int(_verf[2], base=2) else False,
ret=True if int(_verf[3], base=2) else False,
),
seq=_seqn,
)
return opt | [
"def",
"_read_opt_ip_dff",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"_size",
"!=",
"2",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: [Optno {code}] invalid format'",
")",
"_verf",
"=",
"self",
".",
"_read_binary",
"(",
"1",
")",
"_seqn",
"=",
"self",
".",
"_read_unpack",
"(",
"2",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"desc",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"version",
"=",
"_verf",
"[",
":",
"2",
"]",
",",
"flags",
"=",
"dict",
"(",
"dup",
"=",
"True",
"if",
"int",
"(",
"_verf",
"[",
"2",
"]",
",",
"base",
"=",
"2",
")",
"else",
"False",
",",
"ret",
"=",
"True",
"if",
"int",
"(",
"_verf",
"[",
"3",
"]",
",",
"base",
"=",
"2",
")",
"else",
"False",
",",
")",
",",
"seq",
"=",
"_seqn",
",",
")",
"return",
"opt"
] | Read HOPOPT IP_DFF option.
Structure of HOPOPT IP_DFF option [RFC 6971]:
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Hdr Ext Len | OptTypeDFF | OptDataLenDFF |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|VER|D|R|0|0|0|0| Sequence Number | Pad1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 hopopt.ip_dff.type Option Type
0 0 hopopt.ip_dff.type.value Option Number
0 0 hopopt.ip_dff.type.action Action (11)
0 2 hopopt.ip_dff.type.change Change Flag (1)
1 8 hopopt.ip_dff.length Length of Option Data
2 16 hopopt.ip_dff.version Version
2 18 hopopt.ip_dff.flags Flags
2 18 hopopt.ip_dff.flags.dup DUP Flag
2 19 hopopt.ip_dff.flags.ret RET Flag
2 20 - Reserved
3 24 hopopt.ip_dff.seq Sequence Number | [
"Read",
"HOPOPT",
"IP_DFF",
"option",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/hopopt.py#L1016-L1061 |
1,297 | JarryShaw/PyPCAPKit | src/protocols/internet/ipv6_opts.py | IPv6_Opts.read_ipv6_opts | def read_ipv6_opts(self, length, extension):
"""Read Destination Options for IPv6.
Structure of IPv6-Opts header [RFC 8200]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Hdr Ext Len | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
| |
. .
. Options .
. .
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 opt.next Next Header
1 8 opt.length Header Extensive Length
2 16 opt.options Options
"""
if length is None:
length = len(self)
_next = self._read_protos(1)
_hlen = self._read_unpack(1)
# _opts = self._read_fileng(_hlen*8+6)
ipv6_opts = dict(
next=_next,
length=(_hlen + 1) * 8,
)
options = self._read_ipv6_opts_options(_hlen * 8 + 6)
ipv6_opts['options'] = options[0] # tuple of option acronyms
ipv6_opts.update(options[1]) # merge option info to buffer
length -= ipv6_opts['length']
ipv6_opts['packet'] = self._read_packet(header=ipv6_opts['length'], payload=length)
if extension:
self._protos = None
return ipv6_opts
return self._decode_next_layer(ipv6_opts, _next, length) | python | def read_ipv6_opts(self, length, extension):
if length is None:
length = len(self)
_next = self._read_protos(1)
_hlen = self._read_unpack(1)
# _opts = self._read_fileng(_hlen*8+6)
ipv6_opts = dict(
next=_next,
length=(_hlen + 1) * 8,
)
options = self._read_ipv6_opts_options(_hlen * 8 + 6)
ipv6_opts['options'] = options[0] # tuple of option acronyms
ipv6_opts.update(options[1]) # merge option info to buffer
length -= ipv6_opts['length']
ipv6_opts['packet'] = self._read_packet(header=ipv6_opts['length'], payload=length)
if extension:
self._protos = None
return ipv6_opts
return self._decode_next_layer(ipv6_opts, _next, length) | [
"def",
"read_ipv6_opts",
"(",
"self",
",",
"length",
",",
"extension",
")",
":",
"if",
"length",
"is",
"None",
":",
"length",
"=",
"len",
"(",
"self",
")",
"_next",
"=",
"self",
".",
"_read_protos",
"(",
"1",
")",
"_hlen",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"# _opts = self._read_fileng(_hlen*8+6)",
"ipv6_opts",
"=",
"dict",
"(",
"next",
"=",
"_next",
",",
"length",
"=",
"(",
"_hlen",
"+",
"1",
")",
"*",
"8",
",",
")",
"options",
"=",
"self",
".",
"_read_ipv6_opts_options",
"(",
"_hlen",
"*",
"8",
"+",
"6",
")",
"ipv6_opts",
"[",
"'options'",
"]",
"=",
"options",
"[",
"0",
"]",
"# tuple of option acronyms",
"ipv6_opts",
".",
"update",
"(",
"options",
"[",
"1",
"]",
")",
"# merge option info to buffer",
"length",
"-=",
"ipv6_opts",
"[",
"'length'",
"]",
"ipv6_opts",
"[",
"'packet'",
"]",
"=",
"self",
".",
"_read_packet",
"(",
"header",
"=",
"ipv6_opts",
"[",
"'length'",
"]",
",",
"payload",
"=",
"length",
")",
"if",
"extension",
":",
"self",
".",
"_protos",
"=",
"None",
"return",
"ipv6_opts",
"return",
"self",
".",
"_decode_next_layer",
"(",
"ipv6_opts",
",",
"_next",
",",
"length",
")"
] | Read Destination Options for IPv6.
Structure of IPv6-Opts header [RFC 8200]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Hdr Ext Len | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
| |
. .
. Options .
. .
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Octets Bits Name Description
0 0 opt.next Next Header
1 8 opt.length Header Extensive Length
2 16 opt.options Options | [
"Read",
"Destination",
"Options",
"for",
"IPv6",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ipv6_opts.py#L152-L194 |
1,298 | JarryShaw/PyPCAPKit | src/protocols/internet/ipv6_opts.py | IPv6_Opts._read_ipv6_opts_options | def _read_ipv6_opts_options(self, length):
"""Read IPv6_Opts options.
Positional arguments:
* length -- int, length of options
Returns:
* dict -- extracted IPv6_Opts options
"""
counter = 0 # length of read options
optkind = list() # option type list
options = dict() # dict of option data
while counter < length:
# break when eol triggered
code = self._read_unpack(1)
if not code:
break
# extract parameter
abbr, desc = _IPv6_Opts_OPT.get(code, ('None', 'Unassigned'))
data = _IPv6_Opts_PROC(abbr)(self, code, desc=desc)
enum = _OPT_TYPE.get(code)
# record parameter data
counter += data['length']
if enum in optkind:
if isinstance(options[abbr], tuple):
options[abbr] += (Info(data),)
else:
options[abbr] = (Info(options[abbr]), Info(data))
else:
optkind.append(enum)
options[abbr] = data
# check threshold
if counter != length:
raise ProtocolError(f'{self.alias}: invalid format')
return tuple(optkind), options | python | def _read_ipv6_opts_options(self, length):
counter = 0 # length of read options
optkind = list() # option type list
options = dict() # dict of option data
while counter < length:
# break when eol triggered
code = self._read_unpack(1)
if not code:
break
# extract parameter
abbr, desc = _IPv6_Opts_OPT.get(code, ('None', 'Unassigned'))
data = _IPv6_Opts_PROC(abbr)(self, code, desc=desc)
enum = _OPT_TYPE.get(code)
# record parameter data
counter += data['length']
if enum in optkind:
if isinstance(options[abbr], tuple):
options[abbr] += (Info(data),)
else:
options[abbr] = (Info(options[abbr]), Info(data))
else:
optkind.append(enum)
options[abbr] = data
# check threshold
if counter != length:
raise ProtocolError(f'{self.alias}: invalid format')
return tuple(optkind), options | [
"def",
"_read_ipv6_opts_options",
"(",
"self",
",",
"length",
")",
":",
"counter",
"=",
"0",
"# length of read options",
"optkind",
"=",
"list",
"(",
")",
"# option type list",
"options",
"=",
"dict",
"(",
")",
"# dict of option data",
"while",
"counter",
"<",
"length",
":",
"# break when eol triggered",
"code",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"if",
"not",
"code",
":",
"break",
"# extract parameter",
"abbr",
",",
"desc",
"=",
"_IPv6_Opts_OPT",
".",
"get",
"(",
"code",
",",
"(",
"'None'",
",",
"'Unassigned'",
")",
")",
"data",
"=",
"_IPv6_Opts_PROC",
"(",
"abbr",
")",
"(",
"self",
",",
"code",
",",
"desc",
"=",
"desc",
")",
"enum",
"=",
"_OPT_TYPE",
".",
"get",
"(",
"code",
")",
"# record parameter data",
"counter",
"+=",
"data",
"[",
"'length'",
"]",
"if",
"enum",
"in",
"optkind",
":",
"if",
"isinstance",
"(",
"options",
"[",
"abbr",
"]",
",",
"tuple",
")",
":",
"options",
"[",
"abbr",
"]",
"+=",
"(",
"Info",
"(",
"data",
")",
",",
")",
"else",
":",
"options",
"[",
"abbr",
"]",
"=",
"(",
"Info",
"(",
"options",
"[",
"abbr",
"]",
")",
",",
"Info",
"(",
"data",
")",
")",
"else",
":",
"optkind",
".",
"append",
"(",
"enum",
")",
"options",
"[",
"abbr",
"]",
"=",
"data",
"# check threshold",
"if",
"counter",
"!=",
"length",
":",
"raise",
"ProtocolError",
"(",
"f'{self.alias}: invalid format'",
")",
"return",
"tuple",
"(",
"optkind",
")",
",",
"options"
] | Read IPv6_Opts options.
Positional arguments:
* length -- int, length of options
Returns:
* dict -- extracted IPv6_Opts options | [
"Read",
"IPv6_Opts",
"options",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ipv6_opts.py#L237-L277 |
1,299 | JarryShaw/PyPCAPKit | src/protocols/internet/ipv6_opts.py | IPv6_Opts._read_opt_none | def _read_opt_none(self, code, *, desc):
"""Read IPv6_Opts unassigned options.
Structure of IPv6_Opts unassigned options [RFC 8200]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- - - - - - - - -
| Option Type | Opt Data Len | Option Data
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- - - - - - - - -
Octets Bits Name Description
0 0 ipv6_opts.opt.type Option Type
0 0 ipv6_opts.opt.type.value Option Number
0 0 ipv6_opts.opt.type.action Action (00-11)
0 2 ipv6_opts.opt.type.change Change Flag (0/1)
1 8 ipv6_opts.opt.length Length of Option Data
2 16 ipv6_opts.opt.data Option Data
"""
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
_data = self._read_fileng(_size)
opt = dict(
desc=_IPv6_Opts_NULL.get(code, desc),
type=_type,
length=_size + 2,
data=_data,
)
return opt | python | def _read_opt_none(self, code, *, desc):
_type = self._read_opt_type(code)
_size = self._read_unpack(1)
_data = self._read_fileng(_size)
opt = dict(
desc=_IPv6_Opts_NULL.get(code, desc),
type=_type,
length=_size + 2,
data=_data,
)
return opt | [
"def",
"_read_opt_none",
"(",
"self",
",",
"code",
",",
"*",
",",
"desc",
")",
":",
"_type",
"=",
"self",
".",
"_read_opt_type",
"(",
"code",
")",
"_size",
"=",
"self",
".",
"_read_unpack",
"(",
"1",
")",
"_data",
"=",
"self",
".",
"_read_fileng",
"(",
"_size",
")",
"opt",
"=",
"dict",
"(",
"desc",
"=",
"_IPv6_Opts_NULL",
".",
"get",
"(",
"code",
",",
"desc",
")",
",",
"type",
"=",
"_type",
",",
"length",
"=",
"_size",
"+",
"2",
",",
"data",
"=",
"_data",
",",
")",
"return",
"opt"
] | Read IPv6_Opts unassigned options.
Structure of IPv6_Opts unassigned options [RFC 8200]:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- - - - - - - - -
| Option Type | Opt Data Len | Option Data
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- - - - - - - - -
Octets Bits Name Description
0 0 ipv6_opts.opt.type Option Type
0 0 ipv6_opts.opt.type.value Option Number
0 0 ipv6_opts.opt.type.action Action (00-11)
0 2 ipv6_opts.opt.type.change Change Flag (0/1)
1 8 ipv6_opts.opt.length Length of Option Data
2 16 ipv6_opts.opt.data Option Data | [
"Read",
"IPv6_Opts",
"unassigned",
"options",
"."
] | c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e | https://github.com/JarryShaw/PyPCAPKit/blob/c7f0da9aebc2cf210bf8f8b912f7d3cbb98ca10e/src/protocols/internet/ipv6_opts.py#L279-L307 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.