class SAPHDBOptionPartRow(PacketNoPadded):
"""SAP HANA SQL Command Network Protocol Option Part Row
This packet represents a row in an Option Part.
Each row is comprised of a key, type and value.
"""
part_kind = None
option_keys = None
name = "SAP HANA SQL Command Network Protocol Option Part Row"
fields_desc = [
MultiEnumField("key", 0, hdb_option_part_key_vals, depends_on=lambda x: x.part_kind, fmt="<b"),
EnumField("type", 0, hdb_data_type_vals, fmt="<b"),
ConditionalField(FieldLenField("length", None, length_of="value", fmt="<h"), lambda x: x.type in [29, 30, 33]),
MultipleTypeField(
[
(LESignedByteField("value", 0), lambda x: x.type == 1),
(LESignedShortField("value", 0), lambda x: x.type == 2),
(LESignedIntField("value", 0), lambda x: x.type == 3),
(LESignedLongField("value", 0), lambda x: x.type == 4),
(Field("value", 0, fmt="<d"), lambda x: x.type == 7),
(YesNoByteField("value", 0), lambda x: x.type == 28),
(StrFixedLenField("value", None, length_from=lambda x: x.length), lambda x: x.type in [29, 30, 33]),
],
StrField("value", ""),
),
]
class TZSPTagContentionFree(_TZSPTag):
"""
packet received in contention free period
"""
NO = 0x00
YES = 0x01
fields_desc = [
ByteEnumField('type', _TZSPTag.TAG_TYPE_CONTENTION_FREE,
_TZSPTag.TAG_TYPES), # noqa: E501
ByteField('len', 1),
YesNoByteField('contention_free', NO)
]
class TZSPTagDecrypted(_TZSPTag):
"""
packet was decrypted
"""
YES = 0x00
NO = 0x01
fields_desc = [
ByteEnumField('type', _TZSPTag.TAG_TYPE_DECRYPTED, _TZSPTag.TAG_TYPES),
ByteField('len', 1),
YesNoByteField('decrypted', NO, config={
'yes': YES,
'no': (NO, 0xff)
})
]
class TZSPTagError(_TZSPTag):
"""
frame checksum error
"""
NO = 0x00
YES = 0x01
fields_desc = [
ByteEnumField('type', _TZSPTag.TAG_TYPE_FCS_ERROR, _TZSPTag.TAG_TYPES),
ByteField('len', 1),
YesNoByteField('fcs_error',
NO,
config={
'no': NO,
'yes': YES,
'reserved': (YES + 1, 0xff)
}) # noqa: E501
]
class PFLog(Packet):
"""
Class for handling PFLog headers
"""
name = "PFLog"
# from OpenBSD src/sys/net/pfvar.h
# and src/sys/net/if_pflog.h (struct pfloghdr)
fields_desc = [
ByteField("hdrlen", PFLOG_HDRLEN),
ByteEnumField("addrfamily", 2, {
OPENBSD_AF_INET: "IPv4",
OPENBSD_AF_INET6: "IPv6"
}),
ByteEnumField(
"action", 1, {
0: "pass",
1: "drop",
2: "scrub",
3: "no-scrub",
4: "nat",
5: "no-nat",
6: "binat",
7: "no-binat",
8: "rdr",
9: "no-rdr",
10: "syn-proxy-drop"
}),
ByteEnumField(
"reason", 0, {
0: "match",
1: "bad-offset",
2: "fragment",
3: "short",
4: "normalize",
5: "memory",
6: "bad-timestamp",
7: "congestion",
8: "ip-options",
9: "proto-cksum",
10: "state-mismatch",
11: "state-insert",
12: "state-limit",
13: "src-limit",
14: "syn-proxy"
}),
StrFixedLenField("iface", "", 16),
StrFixedLenField("ruleset", "", 16),
SignedIntField("rulenumber", 0),
SignedIntField("subrulenumber", 0),
SignedIntField("uid", 0),
IntField("pid", 0),
SignedIntField("ruleuid", 0),
IntField("rulepid", 0),
ByteEnumField("direction", 255, {
0: "inout",
1: "in",
2: "out",
255: "unknown"
}),
YesNoByteField("rewritten", 0),
ByteEnumField("naddrfamily", 2, {
OPENBSD_AF_INET: "IPv4",
OPENBSD_AF_INET6: "IPv6"
}),
StrFixedLenField("pad", b"\x00", 1),
MultipleTypeField(
[
(PadField(IPField("saddr", "127.0.0.1"), 16, padwith=b"\x00"),
lambda pkt: pkt.addrfamily == OPENBSD_AF_INET),
(IP6Field("saddr", "::1"),
lambda pkt: pkt.addrfamily == OPENBSD_AF_INET6),
],
PadField(IPField("saddr", "127.0.0.1"), 16, padwith=b"\x00"),
),
MultipleTypeField(
[
(PadField(IPField("daddr", "127.0.0.1"), 16, padwith=b"\x00"),
lambda pkt: pkt.addrfamily == OPENBSD_AF_INET),
(IP6Field("daddr", "::1"),
lambda pkt: pkt.addrfamily == OPENBSD_AF_INET6),
],
PadField(IPField("daddr", "127.0.0.1"), 16, padwith=b"\x00"),
),
ShortField("sport", 0),
ShortField("dport", 0),
]
def mysummary(self):
return self.sprintf(
"%PFLog.addrfamily% %PFLog.action% on %PFLog.iface% by rule %PFLog.rulenumber%"
) # noqa: E501
