1from ctypes import c_ubyte
2from ctypes import c_uint
3from ctypes import c_ushort
4from ctypes import Structure
5from enum import Enum
6
7
8class Nlmsghdr(Structure):
9    _fields_ = [
10        ("nlmsg_len", c_uint),
11        ("nlmsg_type", c_ushort),
12        ("nlmsg_flags", c_ushort),
13        ("nlmsg_seq", c_uint),
14        ("nlmsg_pid", c_uint),
15    ]
16
17
18class Nlattr(Structure):
19    _fields_ = [
20        ("nla_len", c_ushort),
21        ("nla_type", c_ushort),
22    ]
23
24
25class NlMsgType(Enum):
26    NLMSG_NOOP = 1
27    NLMSG_ERROR = 2
28    NLMSG_DONE = 3
29    NLMSG_OVERRUN = 4
30
31
32class NlmBaseFlags(Enum):
33    NLM_F_REQUEST = 0x01
34    NLM_F_MULTI = 0x02
35    NLM_F_ACK = 0x04
36    NLM_F_ECHO = 0x08
37    NLM_F_DUMP_INTR = 0x10
38    NLM_F_DUMP_FILTERED = 0x20
39
40
41# XXX: in python3.8 it is possible to
42# class NlmGetFlags(Enum, NlmBaseFlags):
43
44
45class NlmGetFlags(Enum):
46    NLM_F_ROOT = 0x100
47    NLM_F_MATCH = 0x200
48    NLM_F_ATOMIC = 0x400
49
50
51class NlmNewFlags(Enum):
52    NLM_F_REPLACE = 0x100
53    NLM_F_EXCL = 0x200
54    NLM_F_CREATE = 0x400
55    NLM_F_APPEND = 0x800
56
57
58class NlmDeleteFlags(Enum):
59    NLM_F_NONREC = 0x100
60
61
62class NlmAckFlags(Enum):
63    NLM_F_CAPPED = 0x100
64    NLM_F_ACK_TLVS = 0x200
65
66
67class GenlMsgHdr(Structure):
68    _fields_ = [
69        ("cmd", c_ubyte),
70        ("version", c_ubyte),
71        ("reserved", c_ushort),
72    ]
73