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CumulusNetworks-ifupdown2/ifupdown2/nlmanager/nlpacket.py
Julien Fortin dbc23e6cbf nlpacket: vxlan: encode: fix payload length 
Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>
2019-04-22 10:53:59 +08:00

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# Copyright (c) 2009-2013, Exa Networks Limited
# Copyright (c) 2009-2013, Thomas Mangin
# Copyright (c) 2015-2017 Cumulus Networks, Inc.
#
# All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# The names of the Exa Networks Limited, Cumulus Networks, Inc. nor the names
# of its contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
# GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import logging
import struct
from ipaddr import IPv4Address, IPv6Address, IPAddress
from binascii import hexlify
from pprint import pformat
from socket import AF_UNSPEC, AF_INET, AF_INET6, AF_BRIDGE, htons
from string import printable
from struct import pack, unpack, calcsize
log = logging.getLogger(__name__)
SYSLOG_EXTRA_DEBUG = 5
# Interface name buffer size #define IFNAMSIZ 16 (kernel source)
IF_NAME_SIZE = 15 # 15 because python doesn't have \0
# Netlink message types
NLMSG_NOOP = 0x01
NLMSG_ERROR = 0x02
NLMSG_DONE = 0x03
NLMSG_OVERRUN = 0x04
RTM_NEWLINK = 0x10 # Create a new network interface
RTM_DELLINK = 0x11 # Destroy a network interface
RTM_GETLINK = 0x12 # Retrieve information about a network interface(ifinfomsg)
RTM_SETLINK = 0x13 #
RTM_NEWADDR = 0x14
RTM_DELADDR = 0x15
RTM_GETADDR = 0x16
RTM_NEWNEIGH = 0x1C
RTM_DELNEIGH = 0x1D
RTM_GETNEIGH = 0x1E
RTM_NEWROUTE = 0x18
RTM_DELROUTE = 0x19
RTM_GETROUTE = 0x1A
RTM_NEWQDISC = 0x24
RTM_DELQDISC = 0x25
RTM_GETQDISC = 0x26
RTM_NEWNETCONF = 80
RTM_GETNETCONF = 82
# Netlink message flags
NLM_F_REQUEST = 0x01 # It is query message.
NLM_F_MULTI = 0x02 # Multipart message, terminated by NLMSG_DONE
NLM_F_ACK = 0x04 # Reply with ack, with zero or error code
NLM_F_ECHO = 0x08 # Echo this query
# Modifiers to GET query
NLM_F_ROOT = 0x100 # specify tree root
NLM_F_MATCH = 0x200 # return all matching
NLM_F_DUMP = NLM_F_ROOT | NLM_F_MATCH
NLM_F_ATOMIC = 0x400 # atomic GET
# Modifiers to NEW query
NLM_F_REPLACE = 0x100 # Override existing
NLM_F_EXCL = 0x200 # Do not touch, if it exists
NLM_F_CREATE = 0x400 # Create, if it does not exist
NLM_F_APPEND = 0x800 # Add to end of list
NLA_F_NESTED = 0x8000
NLA_F_NET_BYTEORDER = 0x4000
NLA_TYPE_MASK = ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
# Groups
RTMGRP_LINK = 0x1
RTMGRP_NOTIFY = 0x2
RTMGRP_NEIGH = 0x4
RTMGRP_TC = 0x8
RTMGRP_IPV4_IFADDR = 0x10
RTMGRP_IPV4_MROUTE = 0x20
RTMGRP_IPV4_ROUTE = 0x40
RTMGRP_IPV4_RULE = 0x80
RTMGRP_IPV6_IFADDR = 0x100
RTMGRP_IPV6_MROUTE = 0x200
RTMGRP_IPV6_ROUTE = 0x400
RTMGRP_IPV6_IFINFO = 0x800
RTMGRP_DECnet_IFADDR = 0x1000
RTMGRP_DECnet_ROUTE = 0x4000
RTMGRP_IPV6_PREFIX = 0x20000
RTMGRP_ALL = (RTMGRP_LINK | RTMGRP_NOTIFY | RTMGRP_NEIGH | RTMGRP_TC |
RTMGRP_IPV4_IFADDR | RTMGRP_IPV4_MROUTE | RTMGRP_IPV4_ROUTE | RTMGRP_IPV4_RULE |
RTMGRP_IPV6_IFADDR | RTMGRP_IPV6_MROUTE | RTMGRP_IPV6_ROUTE | RTMGRP_IPV6_IFINFO |
RTMGRP_DECnet_IFADDR | RTMGRP_DECnet_ROUTE |
RTMGRP_IPV6_PREFIX)
AF_MPLS = 28
AF_FAMILY = dict()
import socket
for family in [attr for attr in dir(socket) if attr.startswith('AF_')]:
AF_FAMILY[getattr(socket, family)] = family
AF_FAMILY[AF_MPLS] = 'AF_MPLS'
def get_family_str(family):
return AF_FAMILY.get(family, 'UNKNOWN')
# Colors for logging
red = 91
green = 92
yellow = 93
blue = 94
value_to_bool_dict = {
False: False,
None: False,
0: False,
'0': False,
'no': False,
'off': False,
'slow': False,
'None': False,
True: True,
1: True,
'1': True,
'on': True,
'yes': True,
'fast': True
}
def set_log_level(level):
log.setLevel(level)
def zfilled_hex(value, digits):
return '0x' + hex(value)[2:].zfill(digits)
def remove_trailing_null(line):
"""
Remove the last character if it is a NULL...having that NULL
causes python to print a garbage character
"""
if ord(line[-1]) == 0:
line = line[:-1]
return line
def mac_int_to_str(mac_int):
"""
Return an integer in MAC string format
"""
# [2:] to remove the leading 0x, then fill out to 12 zeroes, then uppercase
all_caps = hex(int(mac_int))[2:].zfill(12).upper()
if all_caps[-1] == 'L':
all_caps = all_caps[:-1]
all_caps = all_caps.zfill(12).upper()
return "%s.%s.%s" % (all_caps[0:4], all_caps[4:8], all_caps[8:12])
def data_to_color_text(line_number, color, data, extra=''):
(c1, c2, c3, c4) = unpack('BBBB', data[0:4])
in_ascii = []
for c in (c1, c2, c3, c4):
char_c = chr(c)
if char_c in printable[:-5]:
in_ascii.append(char_c)
else:
in_ascii.append('.')
if color:
return ' %2d: \033[%dm0x%02x%02x%02x%02x\033[0m %s %s' % (line_number, color, c1, c2, c3, c4, ''.join(in_ascii), extra)
return ' %2d: 0x%02x%02x%02x%02x %s %s' % (line_number, c1, c2, c3, c4, ''.join(in_ascii), extra)
def padded_length(length):
return int((length + 3) / 4) * 4
class Attribute(object):
def __init__(self, atype, string, logger):
self.atype = atype
self.string = string
self.HEADER_PACK = '=HH'
self.HEADER_LEN = calcsize(self.HEADER_PACK)
self.PACK = None
self.LEN = None
self.value = None
self.nested = False
self.net_byteorder = False
self.log = logger
def __str__(self):
return self.string
def set_value(self, value):
self.value = value
def set_nested(self, nested):
self.nested = nested
def set_net_byteorder(self, net_byteorder):
self.net_byteorder = net_byteorder
def pad_bytes_needed(self, length):
"""
Return the number of bytes that should be added to align on a 4-byte boundry
"""
remainder = length % 4
if remainder:
return 4 - remainder
return 0
def pad(self, length, raw):
pad = self.pad_bytes_needed(length)
if pad:
raw += '\0' * pad
return raw
def encode(self):
if not self.LEN:
raise Exception('Please define an encode() method in your child attribute class, or do not use AttributeGeneric')
length = self.HEADER_LEN + self.LEN
attr_type_with_flags = self.atype
if self.nested:
attr_type_with_flags = attr_type_with_flags | NLA_F_NESTED
if self.net_byteorder:
attr_type_with_flags = attr_type_with_flags | NLA_F_NET_BYTEORDER
raw = pack(self.HEADER_PACK, length, attr_type_with_flags) + pack(self.PACK, self.value)
raw = self.pad(length, raw)
return raw
def decode_length_type(self, data):
"""
The first two bytes of an attribute are the length, the next two bytes are the type
"""
self.data = data
prev_atype = self.atype
(data1, data2) = unpack(self.HEADER_PACK, data[:self.HEADER_LEN])
self.length = int(data1)
self.atype = int(data2)
self.attr_end = padded_length(self.length)
self.nested = True if self.atype & NLA_F_NESTED else False
self.net_byteorder = True if self.atype & NLA_F_NET_BYTEORDER else False
self.atype = self.atype & NLA_TYPE_MASK
# Should never happen
assert self.atype == prev_atype, "This object changes attribute type from %d to %d, this is bad" % (prev_atype, self.atype)
def dump_first_line(self, dump_buffer, line_number, color):
"""
Add the "Length....Type..." line to the dump buffer
"""
if self.attr_end == self.length:
padded_to = ', '
else:
padded_to = ' padded to %d, ' % self.attr_end
extra = 'Length %s (%d)%sType %s%s%s (%d) %s' % \
(zfilled_hex(self.length, 4), self.length,
padded_to,
zfilled_hex(self.atype, 4),
" (NLA_F_NESTED set)" if self.nested else "",
" (NLA_F_NET_BYTEORDER set)" if self.net_byteorder else "",
self.atype,
self)
dump_buffer.append(data_to_color_text(line_number, color, self.data[0:4], extra))
return line_number + 1
def dump_lines(self, dump_buffer, line_number, color):
line_number = self.dump_first_line(dump_buffer, line_number, color)
for x in xrange(1, self.attr_end/4):
start = x * 4
end = start + 4
dump_buffer.append(data_to_color_text(line_number, color, self.data[start:end], ''))
line_number += 1
return line_number
def get_pretty_value(self, obj=None):
if obj and callable(obj):
return obj(self.value)
return self.value
class AttributeFourByteList(Attribute):
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
def decode(self, parent_msg, data):
self.decode_length_type(data)
wordcount = (self.attr_end - 4)/4
self.PACK = '=%dL' % wordcount
self.LEN = calcsize(self.PACK)
try:
self.value = unpack(self.PACK, self.data[4:])
except struct.error:
self.log.error("%s unpack of %s failed, data 0x%s" % (self, self.PACK, hexlify(self.data[4:])))
raise
def dump_lines(self, dump_buffer, line_number, color):
line_number = self.dump_first_line(dump_buffer, line_number, color)
idx = 1
for val in self.value:
dump_buffer.append(data_to_color_text(line_number, color, self.data[4*idx:4*(idx+1)], val))
line_number += 1
idx += 1
return line_number
class AttributeFourByteValue(Attribute):
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
self.PACK = '=L'
self.LEN = calcsize(self.PACK)
def decode(self, parent_msg, data):
self.decode_length_type(data)
assert self.attr_end == 8, "Attribute length for %s must be 8, it is %d" % (self, self.attr_end)
try:
self.value = int(unpack(self.PACK, self.data[4:])[0])
except struct.error:
self.log.error("%s unpack of %s failed, data 0x%s" % (self, self.PACK, hexlify(self.data[4:])))
raise
def dump_lines(self, dump_buffer, line_number, color):
line_number = self.dump_first_line(dump_buffer, line_number, color)
dump_buffer.append(data_to_color_text(line_number, color, self.data[4:8], self.value))
return line_number + 1
class AttributeTwoByteValue(Attribute):
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
self.PACK = '=Hxx'
self.LEN = calcsize(self.PACK)
def decode(self, parent_msg, data):
self.decode_length_type(data)
assert self.attr_end == 8, "Attribute length for %s must be 8, it is %d" % (self, self.attr_end)
try:
self.value = int(unpack(self.PACK, self.data[4:8])[0])
except struct.error:
self.log.error("%s unpack of %s failed, data 0x%s" % (self, self.PACK, hexlify(self.data[4:6])))
raise
def encode(self):
length = self.HEADER_LEN + self.LEN
raw = pack(self.HEADER_PACK, length-2, self.atype) + pack(self.PACK, self.value)
raw = self.pad(length, raw)
return raw
def dump_lines(self, dump_buffer, line_number, color):
line_number = self.dump_first_line(dump_buffer, line_number, color)
dump_buffer.append(data_to_color_text(line_number, color, self.data[4:8], self.value))
return line_number + 1
class AttributeString(Attribute):
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
self.PACK = None
self.LEN = None
def encode(self):
# some interface names come from JSON as unicode strings
# and cannot be packed as is so we must convert them to strings
if isinstance(self.value, unicode):
self.value = str(self.value)
self.PACK = '%ds' % len(self.value)
self.LEN = calcsize(self.PACK)
length = self.HEADER_LEN + self.LEN
raw = pack(self.HEADER_PACK, length, self.atype) + pack(self.PACK, self.value)
raw = self.pad(length, raw)
return raw
def decode(self, parent_msg, data):
self.decode_length_type(data)
self.PACK = '%ds' % (self.length - 4)
self.LEN = calcsize(self.PACK)
try:
self.value = remove_trailing_null(unpack(self.PACK, self.data[4:self.length])[0])
except struct.error:
self.log.error("%s unpack of %s failed, data 0x%s" % (self, self.PACK, hexlify(self.data[4:self.length])))
raise
class AttributeStringInterfaceName(AttributeString):
def __init__(self, atype, string, family, logger):
AttributeString.__init__(self, atype, string, family, logger)
def set_value(self, value):
if value and len(value) > IF_NAME_SIZE:
raise Exception('interface name exceeds max length of %d' % IF_NAME_SIZE)
self.value = value
class AttributeIPAddress(Attribute):
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
self.value_int = None
self.value_int_str = None
self.family = family
if self.family == AF_INET:
self.PACK = '>L'
elif self.family == AF_INET6:
self.PACK = '>QQ'
elif self.family == AF_BRIDGE:
self.PACK = '>L'
else:
raise Exception("%s is not a supported address family" % self.family)
self.LEN = calcsize(self.PACK)
def set_value(self, value):
if value is None:
self.value = None
else:
self.value = IPAddress(value)
def decode(self, parent_msg, data):
self.decode_length_type(data)
try:
if self.family == AF_INET:
self.value = IPv4Address(unpack(self.PACK, self.data[4:])[0])
elif self.family == AF_INET6:
(data1, data2) = unpack(self.PACK, self.data[4:])
self.value = IPv6Address(data1 << 64 | data2)
elif self.family == AF_BRIDGE:
self.value = IPv4Address(unpack(self.PACK, self.data[4:])[0])
self.value_int = int(self.value)
self.value_int_str = str(self.value_int)
except struct.error:
self.value = None
self.value_int = None
self.value_int_str = None
self.log.error("%s unpack of %s failed, data 0x%s" % (self, self.PACK, hexlify(self.data[4:])))
raise
def encode(self):
length = self.HEADER_LEN + self.LEN
if self.family not in [AF_INET, AF_INET6, AF_BRIDGE]:
raise Exception("%s is not a supported address family" % self.family)
raw = pack(self.HEADER_PACK, length, self.atype) + self.value.packed
raw = self.pad(length, raw)
return raw
def dump_lines(self, dump_buffer, line_number, color):
line_number = self.dump_first_line(dump_buffer, line_number, color)
if self.family == AF_INET:
dump_buffer.append(data_to_color_text(line_number, color, self.data[4:8], self.value))
line_number += 1
elif self.family == AF_INET6:
for x in xrange(1, self.attr_end/4):
start = x * 4
end = start + 4
dump_buffer.append(data_to_color_text(line_number, color, self.data[start:end], self.value))
line_number += 1
elif self.family == AF_BRIDGE:
dump_buffer.append(data_to_color_text(line_number, color, self.data[4:8], self.value))
line_number += 1
return line_number
class AttributeMACAddress(Attribute):
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
self.PACK = '>LHxx'
self.LEN = calcsize(self.PACK)
def decode(self, parent_msg, data):
self.decode_length_type(data)
# IFLA_ADDRESS and IFLA_BROADCAST attributes for all interfaces has been a
# 6-byte MAC address. But the GRE interface uses a 4-byte IP address and
# GREv6 uses a 16-byte IPv6 address for this attribute.
try:
# GRE interface uses a 4-byte IP address for this attribute
if self.length == 8:
self.value = IPv4Address(unpack('>L', self.data[4:])[0])
self.value_int = int(self.value)
self.value_int_str = str(self.value_int)
# MAC Address
elif self.length == 10:
(data1, data2) = unpack(self.PACK, self.data[4:])
self.value = mac_int_to_str(data1 << 16 | data2)
# GREv6 interface uses a 16-byte IP address for this attribute
elif self.length == 20:
self.value = IPv6Address(unpack('>L', self.data[16:])[0])
self.value_int = int(self.value)
self.value_int_str = str(self.value_int)
else:
raise Exception("Length of MACAddress attribute not supported: %d" % self.length)
except struct.error:
self.log.error("%s unpack of %s failed, data 0x%s" % (self, self.PACK, hexlify(self.data[4:])))
raise
def encode(self):
length = self.HEADER_LEN + self.LEN
mac_raw = int(self.value.replace('.', '').replace(':', ''), 16)
raw = pack(self.HEADER_PACK, length-2, self.atype) + pack(self.PACK, mac_raw >> 16, mac_raw & 0x0000FFFF)
raw = self.pad(length, raw)
return raw
def dump_lines(self, dump_buffer, line_number, color):
line_number = self.dump_first_line(dump_buffer, line_number, color)
dump_buffer.append(data_to_color_text(line_number, color, self.data[4:8], self.value))
line_number += 1
if len(self.data) >= 12:
dump_buffer.append(data_to_color_text(line_number, color, self.data[8:12]))
line_number += 1
return line_number
class AttributeMplsLabel(Attribute):
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
self.value_int = None
self.value_int_str = None
self.family = family
self.PACK = '>HBB'
def decode(self, parent_msg, data):
self.decode_length_type(data)
try:
(label_high, label_low_tc_s, self.ttl) = unpack(self.PACK, self.data[4:])
self.s_bit = label_low_tc_s & 0x1
self.traffic_class = ((label_low_tc_s & 0xf) >> 1)
self.label = (label_high << 4) | (label_low_tc_s >> 4)
self.value = self.label
self.value_int = self.value
self.value_int_str = str(self.value_int)
except struct.error:
self.value = None
self.value_int = None
self.value_int_str = None
self.log.error("%s unpack of %s failed, data 0x%s" % (self, self.PACK, hexlify(self.data[4:])))
raise
def dump_lines(self, dump_buffer, line_number, color):
line_number = self.dump_first_line(dump_buffer, line_number, color)
dump_buffer.append(data_to_color_text(line_number, color, self.data[4:8],
'label %s, TC %s, bottom-of-stack %s, TTL %d' %
(self.label, self.traffic_class, self.s_bit, self.ttl)))
line_number += 1
return line_number
class AttributeGeneric(Attribute):
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
self.PACK = None
self.LEN = None
def decode(self, parent_msg, data):
self.decode_length_type(data)
wordcount = (self.attr_end - 4)/4
self.PACK = '=%dL' % wordcount
self.LEN = calcsize(self.PACK)
try:
self.value = ''.join(map(str, unpack(self.PACK, self.data[4:])))
except struct.error:
self.log.error("%s unpack of %s failed, data 0x%s" % (self, self.PACK, hexlify(self.data[4:])))
raise
class AttributeOneByteValue(AttributeGeneric):
def __init__(self, atype, string, family, logger):
AttributeGeneric.__init__(self, atype, string, family, logger)
self.PACK = '=Bxxx'
self.LEN = calcsize(self.PACK)
def decode(self, parent_msg, data):
self.decode_length_type(data)
assert self.attr_end == 8, "Attribute length for %s must be 8, it is %d" % (self, self.attr_end)
try:
self.value = int(unpack(self.PACK, self.data[4:8])[0])
except struct.error:
self.log.error("%s unpack of %s failed, data 0x%s" % (self, self.PACK, hexlify(self.data[4:5])))
raise
def encode(self):
length = self.HEADER_LEN + self.LEN
raw = pack(self.HEADER_PACK, length-3, self.atype) + pack(self.PACK, self.value)
raw = self.pad(length, raw)
return raw
def dump_lines(self, dump_buffer, line_number, color):
line_number = self.dump_first_line(dump_buffer, line_number, color)
dump_buffer.append(data_to_color_text(line_number, color, self.data[4:8], self.value))
return line_number + 1
class AttributeIFLA_AF_SPEC(Attribute):
"""
value will be a dictionary such as:
{
Link.IFLA_BRIDGE_FLAGS: flags,
Link.IFLA_BRIDGE_VLAN_INFO: (vflags, vlanid)
}
"""
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
self.family = family
def encode(self):
pack_layout = [self.HEADER_PACK]
payload = [0, self.atype | NLA_F_NESTED]
attr_length_index = 0
# For now this assumes that all data will be packed in the native endian
# order (=). If a field is added that needs to be packed via network
# order (>) then some smarts will need to be added to split the pack_layout
# string at the >, split the payload and make the needed pack() calls.
#
# Until we cross that bridge though we will keep things nice and simple and
# pack everything via a single pack() call.
sub_attr_to_add = []
for (sub_attr_type, sub_attr_value) in self.value.iteritems():
if sub_attr_type == Link.IFLA_BRIDGE_FLAGS:
sub_attr_to_add.append((sub_attr_type, sub_attr_value))
elif sub_attr_type == Link.IFLA_BRIDGE_VLAN_INFO:
for (vlan_flag, vlan_id) in sub_attr_value:
sub_attr_to_add.append((sub_attr_type, (vlan_flag, vlan_id)))
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for encoding IFLA_AF_SPEC sub-attribute type %d' % sub_attr_type)
continue
for (sub_attr_type, sub_attr_value) in sub_attr_to_add:
sub_attr_pack_layout = ['=', 'HH']
sub_attr_payload = [0, sub_attr_type]
sub_attr_length_index = 0
if sub_attr_type == Link.IFLA_BRIDGE_FLAGS:
sub_attr_pack_layout.append('H')
sub_attr_payload.append(sub_attr_value)
elif sub_attr_type == Link.IFLA_BRIDGE_VLAN_INFO:
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(sub_attr_value[0])
sub_attr_payload.append(sub_attr_value[1])
sub_attr_length = calcsize(''.join(sub_attr_pack_layout))
sub_attr_payload[sub_attr_length_index] = sub_attr_length
# add padding
for x in xrange(self.pad_bytes_needed(sub_attr_length)):
sub_attr_pack_layout.append('x')
# The [1:] is to remove the leading = so that when we do the ''.join() later
# we do not end up with an = in the middle of the pack layout string. There
# will be an = at the beginning via self.HEADER_PACK
sub_attr_pack_layout = sub_attr_pack_layout[1:]
# Now extend the ovarall attribute pack_layout/payload to include this sub-attribute
pack_layout.extend(sub_attr_pack_layout)
payload.extend(sub_attr_payload)
pack_layout = ''.join(pack_layout)
# Fill in the length field
length = calcsize(pack_layout)
payload[attr_length_index] = length
raw = pack(pack_layout, *payload)
raw = self.pad(length, raw)
return raw
def decode(self, parent_msg, data):
"""
value is a dictionary such as:
{
Link.IFLA_BRIDGE_FLAGS: flags,
Link.IFLA_BRIDGE_VLAN_INFO: (vflags, vlanid)
}
FROM: David Ahern
The encoding of the IFLA_AF_SPEC attribute varies depending on the family
used for the request (RTM_GETLINK) message. For AF_UNSPEC the encoding
has another level of nesting for each address family with the type encoded
first. i.e.,
af_spec = nla_nest_start(skb, IFLA_AF_SPEC)
for each family:
af = nla_nest_start(skb, af_ops->family)
af_ops->fill_link_af(skb, dev, ext_filter_mask)
nest_end
nest_end
This allows the parser to find the address family by looking at the first
type.
Whereas AF_BRIDGE encoding is just:
af_spec = nla_nest_start(skb, IFLA_AF_SPEC)
br_fill_ifvlaninfo{_compressed}(skb, vg)
nest_end
which means the parser can not use the attribute itself to know the family
to which the attribute belongs.
/include/uapi/linux/if_link.h
/*
* IFLA_AF_SPEC
* Contains nested attributes for address family specific attributes.
* Each address family may create a attribute with the address family
* number as type and create its own attribute structure in it.
*
* Example:
* [IFLA_AF_SPEC] = {
* [AF_INET] = {
* [IFLA_INET_CONF] = ...,
* },
* [AF_INET6] = {
* [IFLA_INET6_FLAGS] = ...,
* [IFLA_INET6_CONF] = ...,
* }
* }
*/
"""
self.decode_length_type(data)
self.value = {}
data = self.data[4:]
while data:
(sub_attr_length, sub_attr_type) = unpack('=HH', data[:4])
sub_attr_end = padded_length(sub_attr_length)
if not sub_attr_length:
self.log.error('parsed a zero length sub-attr')
return
sub_attr_data = data[4:sub_attr_end]
if self.family == AF_BRIDGE:
if sub_attr_type == Link.IFLA_BRIDGE_FLAGS:
self.value[Link.IFLA_BRIDGE_FLAGS] = unpack("=H", sub_attr_data[0:2])[0]
elif sub_attr_type == Link.IFLA_BRIDGE_VLAN_INFO:
if Link.IFLA_BRIDGE_VLAN_INFO not in self.value:
self.value[Link.IFLA_BRIDGE_VLAN_INFO] = []
self.value[Link.IFLA_BRIDGE_VLAN_INFO].append(tuple(unpack("=HH", sub_attr_data[0:4])))
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for decoding IFLA_AF_SPEC sub-attribute '
'type %s (%d), length %d, padded to %d' %
(parent_msg.get_ifla_bridge_af_spec_to_string(sub_attr_type),
sub_attr_type, sub_attr_length, sub_attr_end))
elif self.family == AF_UNSPEC:
if sub_attr_type == AF_INET6:
inet6_attr = {}
while sub_attr_data:
(inet6_attr_length, inet6_attr_type) = unpack('=HH', sub_attr_data[:4])
inet6_attr_end = padded_length(inet6_attr_length)
# 1 byte attr
if inet6_attr_type == Link.IFLA_INET6_ADDR_GEN_MODE:
inet6_attr[inet6_attr_type] = unpack('=B', sub_attr_data[4])[0]
# nlmanager doesn't support multiple kernel version
# all the other attributes like IFLA_INET6_CONF are
# based on DEVCONF_MAX from _UAPI_IPV6_H.
# we can opti the code and break this loop once we
# found the attribute that we are interested in.
# It's not really worth going through all the other
# attributes to log that we don't support them yet
break
else:
self.log.log(
SYSLOG_EXTRA_DEBUG,
'Add support for decoding AF_INET6 IFLA_AF_SPEC '
'sub-attribute type %s (%d), length %d, padded to %d'
% (
parent_msg.get_ifla_inet6_af_spec_to_string(inet6_attr_type),
inet6_attr_type, inet6_attr_length, inet6_attr_end
)
)
sub_attr_data = sub_attr_data[inet6_attr_end:]
self.value[AF_INET6] = inet6_attr
else:
self.value[sub_attr_type] = {}
# Uncomment the following block to implement the AF_INET attributes
# see Link.get_ifla_inet_af_spec_to_string (dict)
#elif sub_attr_type == AF_INET:
# inet_attr = {}
#
# while sub_attr_data:
# (inet_attr_length, inet_attr_type) = unpack('=HH', sub_attr_data[:4])
# inet_attr_end = padded_length(inet_attr_length)
#
# self.log.error(
# # SYSLOG_EXTRA_DEBUG,
# 'Add support for decoding AF_INET IFLA_AF_SPEC '
# 'sub-attribute type %s (%d), length %d, padded to %d'
# % (
# parent_msg.get_ifla_inet_af_spec_to_string(inet_attr_type),
# inet_attr_type, inet_attr_length, inet_attr_end
# )
# )
#
# sub_attr_data = sub_attr_data[inet_attr_end:]
#
# self.value[AF_INET] = inet_attr
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for decoding IFLA_AF_SPEC sub-attribute '
'family %d, length %d, padded to %d'
% (self.family, sub_attr_length, sub_attr_end))
data = data[sub_attr_end:]
def dump_lines(self, dump_buffer, line_number, color):
line_number = self.dump_first_line(dump_buffer, line_number, color)
extra = ''
next_sub_attr_line = 0
sub_attr_line = True
for x in xrange(1, self.attr_end/4):
start = x * 4
end = start + 4
if line_number == next_sub_attr_line:
sub_attr_line = True
if sub_attr_line:
sub_attr_line = False
(sub_attr_length, sub_attr_type) = unpack('=HH', self.data[start:start+4])
sub_attr_end = padded_length(sub_attr_length)
next_sub_attr_line = line_number + (sub_attr_end/4)
if sub_attr_end == sub_attr_length:
padded_to = ','
else:
padded_to = ' padded to %d,' % sub_attr_end
if self.family == AF_BRIDGE:
extra = 'Nested Attribute - Length %s (%d)%s Type %s (%d) %s' % \
(zfilled_hex(sub_attr_length, 4), sub_attr_length,
padded_to,
zfilled_hex(sub_attr_type, 4), sub_attr_type,
Link.ifla_bridge_af_spec_to_string.get(sub_attr_type))
elif self.family == AF_UNSPEC:
if sub_attr_type == AF_INET6:
family = 'AF_INET6'
elif sub_attr_type == AF_INET:
family = 'AF_INET'
else:
family = 'Unsupported family %d' % sub_attr_type
extra = 'Nested Attribute Structure for %s - Length %s (%d)%s Type %s (%d)' % (
family, zfilled_hex(sub_attr_length, 4), sub_attr_length, padded_to,
zfilled_hex(sub_attr_type, 4), sub_attr_type,
)
else:
extra = ''
dump_buffer.append(data_to_color_text(line_number, color, self.data[start:end], extra))
line_number += 1
return line_number
def get_pretty_value(self, obj=None):
if obj and callable(obj):
return obj(self.value)
# We do this so we can print a more human readable dictionary
# with the names of the nested keys instead of their numbers
value_pretty = {}
if self.family == AF_BRIDGE:
for (sub_key, sub_value) in self.value.iteritems():
sub_key_pretty = "(%2d) %s" % (sub_key, Link.ifla_bridge_af_spec_to_string.get(sub_key))
value_pretty[sub_key_pretty] = sub_value
elif self.family == AF_UNSPEC:
for (family, family_attr) in self.value.iteritems():
family_value_pretty = {}
if family == AF_INET6:
family_af_spec_to_string = Link.ifla_inet6_af_spec_to_string
elif family == AF_INET:
family_af_spec_to_string = Link.ifla_inet_af_spec_to_string
else:
continue # log error?
for (sub_key, sub_value) in family_attr.iteritems():
sub_key_pretty = "(%2d) %s" % (sub_key, family_af_spec_to_string.get(sub_key))
family_value_pretty[sub_key_pretty] = sub_value
value_pretty = family_value_pretty
return value_pretty
class AttributeRTA_MULTIPATH(Attribute):
"""
/* RTA_MULTIPATH --- array of struct rtnexthop.
*
* "struct rtnexthop" describes all necessary nexthop information,
* i.e. parameters of path to a destination via this nexthop.
*
* At the moment it is impossible to set different prefsrc, mtu, window
* and rtt for different paths from multipath.
*/
struct rtnexthop {
unsigned short rtnh_len;
unsigned char rtnh_flags;
unsigned char rtnh_hops;
int rtnh_ifindex;
};
"""
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
self.family = family
self.PACK = None
self.LEN = None
self.RTNH_PACK = '=HBBL' # rtnh_len, flags, hops, ifindex
self.RTNH_LEN = calcsize(self.RTNH_PACK)
self.IPV4_LEN = 4
self.IPV6_LEN = 16
def encode(self):
# Calculate the length
if self.family == AF_INET:
ip_len = self.IPV4_LEN
elif self.family == AF_INET6:
ip_len = self.IPV6_LEN
# Attribute header
length = self.HEADER_LEN + ((self.RTNH_LEN + self.HEADER_LEN + ip_len) * len(self.value))
raw = pack(self.HEADER_PACK, length, self.atype)
rtnh_flags = 0
rtnh_hops = 0
rtnh_len = self.RTNH_LEN + self.HEADER_LEN + ip_len
for (nexthop, rtnh_ifindex) in self.value:
# rtnh structure
raw += pack(self.RTNH_PACK, rtnh_len, rtnh_flags, rtnh_hops, rtnh_ifindex)
# Gateway
raw += pack(self.HEADER_PACK, self.HEADER_LEN + ip_len, Route.RTA_GATEWAY)
if self.family == AF_INET:
raw += pack('>L', nexthop)
elif self.family == AF_INET6:
raw += pack('>QQ', nexthop >> 64, nexthop & 0x0000000000000000FFFFFFFFFFFFFFFF)
raw = self.pad(length, raw)
return raw
def decode(self, parent_msg, data):
self.decode_length_type(data)
self.value = []
data = self.data[4:]
while data:
(rtnh_len, rtnh_flags, rtnh_hops, rtnh_ifindex) = unpack(self.RTNH_PACK, data[:self.RTNH_LEN])
data = data[self.RTNH_LEN:]
(attr_type, attr_length) = unpack(self.HEADER_PACK, self.data[:self.HEADER_LEN])
data = data[self.HEADER_LEN:]
if self.family == AF_INET:
if len(data) < self.IPV4_LEN:
break
nexthop = IPv4Address(unpack('>L', data[:self.IPV4_LEN])[0])
self.value.append((nexthop, rtnh_ifindex, rtnh_flags, rtnh_hops))
elif self.family == AF_INET6:
if len(data) < self.IPV6_LEN:
break
(data1, data2) = unpack('>QQ', data[:self.IPV6_LEN])
nexthop = IPv6Address(data1 << 64 | data2)
self.value.append((nexthop, rtnh_ifindex, rtnh_flags, rtnh_hops))
data = data[(rtnh_len-self.RTNH_LEN-self.HEADER_LEN):]
self.value = tuple(self.value)
class AttributeIFLA_LINKINFO(Attribute):
"""
value is a dictionary such as:
{
Link.IFLA_INFO_KIND : 'vlan',
Link.IFLA_INFO_DATA : {
Link.IFLA_VLAN_ID : vlanid,
}
}
"""
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
def encode(self):
pack_layout = [self.HEADER_PACK]
payload = [0, self.atype | NLA_F_NESTED]
attr_length_index = 0
kind = self.value.get(Link.IFLA_INFO_KIND)
slave_kind = self.value.get(Link.IFLA_INFO_SLAVE_KIND)
if not slave_kind and kind not in ('vlan', 'macvlan', 'vxlan', 'bond', 'bridge'):
raise Exception('Unsupported IFLA_INFO_KIND %s' % kind)
elif not kind and slave_kind != 'bridge':
# only support brport for now.
raise Exception('Unsupported IFLA_INFO_SLAVE_KIND %s' % slave_kind)
# For now this assumes that all data will be packed in the native endian
# order (=). If a field is added that needs to be packed via network
# order (>) then some smarts will need to be added to split the pack_layout
# string at the >, split the payload and make the needed pack() calls.
#
# Until we cross that bridge though we will keep things nice and simple and
# pack everything via a single pack() call.
for (sub_attr_type, sub_attr_value) in self.value.iteritems():
sub_attr_pack_layout = ['=', 'HH']
sub_attr_payload = [0, sub_attr_type]
sub_attr_length_index = 0
if sub_attr_type == Link.IFLA_INFO_KIND:
sub_attr_pack_layout.append('%ds' % len(sub_attr_value))
sub_attr_payload.append(sub_attr_value)
elif sub_attr_type == Link.IFLA_INFO_DATA:
sub_attr_payload = [0, sub_attr_type | NLA_F_NESTED]
for (info_data_type, info_data_value) in sub_attr_value.iteritems():
if kind == 'vlan':
if info_data_type == Link.IFLA_VLAN_ID:
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(6) # length
sub_attr_payload.append(info_data_type)
# The vlan-id
sub_attr_pack_layout.append('H')
sub_attr_payload.append(info_data_value)
# pad 2 bytes
sub_attr_pack_layout.extend('xx')
elif info_data_type == Link.IFLA_VLAN_PROTOCOL:
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(6) # length
sub_attr_payload.append(info_data_type)
# vlan protocol
vlan_protocol = Link.ifla_vlan_protocol_dict.get(info_data_value)
if not vlan_protocol:
raise NotImplementedError('vlan protocol %s not implemented' % info_data_value)
sub_attr_pack_layout.append('H')
sub_attr_payload.append(htons(vlan_protocol))
# pad 2 bytes
sub_attr_pack_layout.extend('xx')
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for encoding IFLA_INFO_DATA vlan sub-attribute type %d' % info_data_type)
elif kind == 'macvlan':
if info_data_type == Link.IFLA_MACVLAN_MODE:
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(8) # length
sub_attr_payload.append(info_data_type)
# macvlan mode
sub_attr_pack_layout.append('L')
sub_attr_payload.append(info_data_value)
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for encoding IFLA_INFO_DATA macvlan sub-attribute type %d' % info_data_type)
elif kind == 'vxlan':
if info_data_type in (Link.IFLA_VXLAN_ID,
Link.IFLA_VXLAN_LINK,
Link.IFLA_VXLAN_AGEING,
Link.IFLA_VXLAN_LIMIT,
Link.IFLA_VXLAN_PORT_RANGE):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(8) # length
sub_attr_payload.append(info_data_type)
sub_attr_pack_layout.append('L')
sub_attr_payload.append(info_data_value)
elif info_data_type in (Link.IFLA_VXLAN_GROUP,
Link.IFLA_VXLAN_LOCAL):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(8) # length
sub_attr_payload.append(info_data_type)
sub_attr_pack_layout.append('L')
reorder = unpack('<L', IPv4Address(info_data_value).packed)[0]
sub_attr_payload.append(IPv4Address(reorder))
elif info_data_type in (Link.IFLA_VXLAN_PORT,):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(6)
sub_attr_payload.append(info_data_type)
sub_attr_pack_layout.append('H')
# byte swap
swaped = pack(">H", info_data_value)
sub_attr_payload.append(unpack("<H", swaped)[0])
sub_attr_pack_layout.extend('xx')
elif info_data_type in (Link.IFLA_VXLAN_TTL,
Link.IFLA_VXLAN_TOS,
Link.IFLA_VXLAN_LEARNING,
Link.IFLA_VXLAN_PROXY,
Link.IFLA_VXLAN_RSC,
Link.IFLA_VXLAN_L2MISS,
Link.IFLA_VXLAN_L3MISS,
Link.IFLA_VXLAN_UDP_CSUM,
Link.IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
Link.IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
Link.IFLA_VXLAN_REMCSUM_TX,
Link.IFLA_VXLAN_REMCSUM_RX,
Link.IFLA_VXLAN_REPLICATION_TYPE):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(5)
sub_attr_payload.append(info_data_type)
sub_attr_pack_layout.append('B')
sub_attr_payload.append(info_data_value)
sub_attr_pack_layout.extend('xxx')
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for encoding IFLA_INFO_DATA vxlan sub-attribute type %d' % info_data_type)
elif kind == 'bond':
if info_data_type in (Link.IFLA_BOND_AD_ACTOR_SYSTEM, ):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(10) # length
sub_attr_payload.append(info_data_type)
sub_attr_pack_layout.append('6B')
for mbyte in info_data_value.replace('.', ' ').replace(':', ' ').split():
sub_attr_payload.append(int(mbyte, 16))
sub_attr_pack_layout.extend('xx')
elif info_data_type == Link.IFLA_BOND_AD_ACTOR_SYS_PRIO:
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(6) # length
sub_attr_payload.append(info_data_type)
# 2 bytes
sub_attr_pack_layout.append('H')
sub_attr_payload.append(int(info_data_value))
# pad 2 bytes
sub_attr_pack_layout.extend('xx')
elif info_data_type == Link.IFLA_BOND_NUM_PEER_NOTIF:
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(5) # length
sub_attr_payload.append(info_data_type)
# 1 byte
sub_attr_pack_layout.append('B')
sub_attr_payload.append(int(info_data_value))
# pad 3 bytes
sub_attr_pack_layout.extend('xxx')
elif info_data_type in (Link.IFLA_BOND_AD_LACP_RATE,
Link.IFLA_BOND_AD_LACP_BYPASS,
Link.IFLA_BOND_USE_CARRIER):
# converts yes/no/on/off/0/1 strings to boolean value
bool_value = self.get_bool_value(info_data_value)
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(5) # length
sub_attr_payload.append(info_data_type)
# 1 byte
sub_attr_pack_layout.append('B')
sub_attr_payload.append(bool_value)
# pad 3 bytes
sub_attr_pack_layout.extend('xxx')
elif info_data_type == Link.IFLA_BOND_XMIT_HASH_POLICY:
index = self.get_index(Link.ifla_bond_xmit_hash_policy_tbl,
'bond xmit hash policy',
info_data_value)
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(5) # length
sub_attr_payload.append(info_data_type)
# 1 byte
sub_attr_pack_layout.append('B')
sub_attr_payload.append(index)
# pad 3 bytes
sub_attr_pack_layout.extend('xxx')
elif info_data_type == Link.IFLA_BOND_MODE:
index = self.get_index(Link.ifla_bond_mode_tbl,
'bond mode',
info_data_value)
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(5) # length
sub_attr_payload.append(info_data_type)
# 1 byte
sub_attr_pack_layout.append('B')
sub_attr_payload.append(index)
# pad 3 bytes
sub_attr_pack_layout.extend('xxx')
elif info_data_type in (Link.IFLA_BOND_MIIMON,
Link.IFLA_BOND_UPDELAY,
Link.IFLA_BOND_DOWNDELAY,
Link.IFLA_BOND_MIN_LINKS):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(8) # length
sub_attr_payload.append(info_data_type)
sub_attr_pack_layout.append('L')
sub_attr_payload.append(int(info_data_value))
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for encoding IFLA_INFO_DATA bond sub-attribute type %d' % info_data_type)
elif kind == 'bridge':
if info_data_type == Link.IFLA_BR_VLAN_PROTOCOL:
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(6) # length
sub_attr_payload.append(info_data_type)
# vlan protocol
vlan_protocol = Link.ifla_vlan_protocol_dict.get(info_data_value)
if not vlan_protocol:
raise NotImplementedError('vlan protocol %s not implemented' % info_data_value)
sub_attr_pack_layout.append('H')
sub_attr_payload.append(htons(vlan_protocol))
# pad 2 bytes
sub_attr_pack_layout.extend('xx')
# 1 byte
elif info_data_type in (Link.IFLA_BR_VLAN_FILTERING,
Link.IFLA_BR_TOPOLOGY_CHANGE,
Link.IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
Link.IFLA_BR_MCAST_ROUTER,
Link.IFLA_BR_MCAST_SNOOPING,
Link.IFLA_BR_MCAST_QUERY_USE_IFADDR,
Link.IFLA_BR_MCAST_QUERIER,
Link.IFLA_BR_NF_CALL_IPTABLES,
Link.IFLA_BR_NF_CALL_IP6TABLES,
Link.IFLA_BR_NF_CALL_ARPTABLES,
Link.IFLA_BR_VLAN_STATS_ENABLED,
Link.IFLA_BR_MCAST_STATS_ENABLED,
Link.IFLA_BR_MCAST_IGMP_VERSION,
Link.IFLA_BR_MCAST_MLD_VERSION):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(5) # length
sub_attr_payload.append(info_data_type)
# 1 byte
sub_attr_pack_layout.append('B')
sub_attr_payload.append(int(info_data_value))
# pad 3 bytes
sub_attr_pack_layout.extend('xxx')
# 2 bytes
elif info_data_type in (Link.IFLA_BR_PRIORITY,
Link.IFLA_BR_GROUP_FWD_MASK,
Link.IFLA_BR_ROOT_PORT,
Link.IFLA_BR_VLAN_DEFAULT_PVID):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(6) # length
sub_attr_payload.append(info_data_type)
# 2 bytes
sub_attr_pack_layout.append('H')
sub_attr_payload.append(int(info_data_value))
# pad 2 bytes
sub_attr_pack_layout.extend('xx')
# 4 bytes
elif info_data_type in (Link.IFLA_BR_FORWARD_DELAY,
Link.IFLA_BR_HELLO_TIME,
Link.IFLA_BR_MAX_AGE,
Link.IFLA_BR_AGEING_TIME,
Link.IFLA_BR_STP_STATE,
Link.IFLA_BR_ROOT_PATH_COST,
Link.IFLA_BR_MCAST_QUERIER,
Link.IFLA_BR_MCAST_HASH_ELASTICITY,
Link.IFLA_BR_MCAST_HASH_MAX,
Link.IFLA_BR_MCAST_LAST_MEMBER_CNT,
Link.IFLA_BR_MCAST_STARTUP_QUERY_CNT):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(8) # length
sub_attr_payload.append(info_data_type)
sub_attr_pack_layout.append('L')
sub_attr_payload.append(int(info_data_value))
# 8 bytes
elif info_data_type in (Link.IFLA_BR_MCAST_LAST_MEMBER_INTVL,
Link.IFLA_BR_MCAST_MEMBERSHIP_INTVL,
Link.IFLA_BR_MCAST_QUERIER_INTVL,
Link.IFLA_BR_MCAST_QUERY_INTVL,
Link.IFLA_BR_MCAST_QUERY_RESPONSE_INTVL,
Link.IFLA_BR_MCAST_STARTUP_QUERY_INTVL):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(12) # length
sub_attr_payload.append(info_data_type)
sub_attr_pack_layout.append('Q')
sub_attr_payload.append(int(info_data_value))
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for encoding IFLA_INFO_DATA bridge sub-attribute type %d' % info_data_type)
elif sub_attr_type == Link.IFLA_INFO_SLAVE_DATA:
sub_attr_payload = [0, sub_attr_type | NLA_F_NESTED]
for (info_slave_data_type, info_slave_data_value) in sub_attr_value.iteritems():
if slave_kind == 'bridge':
# 1 byte
if info_slave_data_type in (Link.IFLA_BRPORT_STATE,
Link.IFLA_BRPORT_MODE,
Link.IFLA_BRPORT_GUARD,
Link.IFLA_BRPORT_PROTECT,
Link.IFLA_BRPORT_FAST_LEAVE,
Link.IFLA_BRPORT_LEARNING,
Link.IFLA_BRPORT_UNICAST_FLOOD,
Link.IFLA_BRPORT_PROXYARP,
Link.IFLA_BRPORT_LEARNING_SYNC,
Link.IFLA_BRPORT_PROXYARP_WIFI,
Link.IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
Link.IFLA_BRPORT_CONFIG_PENDING,
Link.IFLA_BRPORT_MULTICAST_ROUTER,
Link.IFLA_BRPORT_MCAST_FLOOD,
Link.IFLA_BRPORT_MCAST_TO_UCAST,
Link.IFLA_BRPORT_VLAN_TUNNEL,
Link.IFLA_BRPORT_BCAST_FLOOD,
Link.IFLA_BRPORT_PEER_LINK,
Link.IFLA_BRPORT_DUAL_LINK,
Link.IFLA_BRPORT_ARP_SUPPRESS,
Link.IFLA_BRPORT_DOWN_PEERLINK_REDIRECT):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(5) # length
sub_attr_payload.append(info_slave_data_type)
# 1 byte
sub_attr_pack_layout.append('B')
sub_attr_payload.append(int(info_slave_data_value))
# pad 3 bytes
sub_attr_pack_layout.extend('xxx')
# 2 bytes
elif info_slave_data_type in (Link.IFLA_BRPORT_PRIORITY,
Link.IFLA_BRPORT_DESIGNATED_PORT,
Link.IFLA_BRPORT_DESIGNATED_COST,
Link.IFLA_BRPORT_ID,
Link.IFLA_BRPORT_NO,
Link.IFLA_BRPORT_GROUP_FWD_MASK,
Link.IFLA_BRPORT_GROUP_FWD_MASKHI):
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(6) # length
sub_attr_payload.append(info_slave_data_type)
# 2 bytes
sub_attr_pack_layout.append('H')
sub_attr_payload.append(int(info_slave_data_value))
# pad 2 bytes
sub_attr_pack_layout.extend('xx')
# 4 bytes
elif info_slave_data_type == Link.IFLA_BRPORT_COST:
sub_attr_pack_layout.append('HH')
sub_attr_payload.append(8) # length
sub_attr_payload.append(info_slave_data_type)
sub_attr_pack_layout.append('L')
sub_attr_payload.append(int(info_slave_data_value))
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for encoding IFLA_INFO_SLAVE_DATA bond sub-attribute type %d' % info_slave_data_type)
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for encoding IFLA_LINKINFO kind %s' % slave_kind)
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for encoding IFLA_LINKINFO sub-attribute type %d' % sub_attr_type)
continue
sub_attr_length = calcsize(''.join(sub_attr_pack_layout))
sub_attr_payload[sub_attr_length_index] = sub_attr_length
# add padding
for x in xrange(self.pad_bytes_needed(sub_attr_length)):
sub_attr_pack_layout.append('x')
# The [1:] is to remove the leading = so that when we do the ''.join() later
# we do not end up with an = in the middle of the pack layout string. There
# will be an = at the beginning via self.HEADER_PACK
sub_attr_pack_layout = sub_attr_pack_layout[1:]
# Now extend the ovarall attribute pack_layout/payload to include this sub-attribute
pack_layout.extend(sub_attr_pack_layout)
payload.extend(sub_attr_payload)
pack_layout = ''.join(pack_layout)
# Fill in the length field
length = calcsize(pack_layout)
payload[attr_length_index] = length
raw = pack(pack_layout, *payload)
raw = self.pad(length, raw)
return raw
def get_bool_value(self, value, default=None):
try:
return value_to_bool_dict[value]
except KeyError:
self.log.debug('%s: unsupported boolean value' % value)
return default
def get_index(self, tbl, attr, value, default=None):
try:
return tbl[value]
except KeyError:
self.log.debug('unsupported %s value %s (%s)' % (attr, value, tbl.keys()))
return default
def decode(self, parent_msg, data):
"""
value is a dictionary such as:
{
Link.IFLA_INFO_KIND : 'vlan',
Link.IFLA_INFO_DATA : {
Link.IFLA_VLAN_ID : vlanid,
}
}
"""
self.decode_length_type(data)
self.value = {}
data = self.data[4:]
# IFLA_MACVLAN_MODE and IFLA_VLAN_ID both have a value of 1 and both are
# valid IFLA_INFO_DATA entries :( The sender must TX IFLA_INFO_KIND
# first in order for us to know if "1" is IFLA_MACVLAN_MODE vs IFLA_VLAN_ID.
while data:
(sub_attr_length, sub_attr_type) = unpack('=HH', data[:4])
sub_attr_end = padded_length(sub_attr_length)
if not sub_attr_length:
self.log.error('parsed a zero length sub-attr')
return
if sub_attr_type in (Link.IFLA_INFO_KIND, Link.IFLA_INFO_SLAVE_KIND):
self.value[sub_attr_type] = remove_trailing_null(unpack('%ds' % (sub_attr_length - 4), data[4:sub_attr_length])[0])
elif sub_attr_type == Link.IFLA_INFO_SLAVE_DATA:
sub_attr_data = data[4:sub_attr_end]
ifla_info_slave_data = dict()
ifla_info_slave_kind = self.value.get(Link.IFLA_INFO_SLAVE_KIND)
if not ifla_info_slave_kind:
self.log.warning('IFLA_INFO_SLAVE_KIND is not known...we cannot parse IFLA_INFO_SLAVE_DATA')
else:
while sub_attr_data:
(info_data_length, info_data_type) = unpack('=HH', sub_attr_data[:4])
info_data_end = padded_length(info_data_length)
try:
if ifla_info_slave_kind == 'bridge':
# 1 byte
if info_data_type in (Link.IFLA_BRPORT_STATE,
Link.IFLA_BRPORT_MODE,
Link.IFLA_BRPORT_GUARD,
Link.IFLA_BRPORT_PROTECT,
Link.IFLA_BRPORT_FAST_LEAVE,
Link.IFLA_BRPORT_LEARNING,
Link.IFLA_BRPORT_UNICAST_FLOOD,
Link.IFLA_BRPORT_PROXYARP,
Link.IFLA_BRPORT_LEARNING_SYNC,
Link.IFLA_BRPORT_PROXYARP_WIFI,
Link.IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
Link.IFLA_BRPORT_CONFIG_PENDING,
Link.IFLA_BRPORT_MULTICAST_ROUTER,
Link.IFLA_BRPORT_MCAST_FLOOD,
Link.IFLA_BRPORT_MCAST_TO_UCAST,
Link.IFLA_BRPORT_VLAN_TUNNEL,
Link.IFLA_BRPORT_PEER_LINK,
Link.IFLA_BRPORT_DUAL_LINK,
Link.IFLA_BRPORT_ARP_SUPPRESS,
Link.IFLA_BRPORT_DOWN_PEERLINK_REDIRECT):
ifla_info_slave_data[info_data_type] = unpack('=B', sub_attr_data[4])[0]
# 2 bytes
elif info_data_type in (Link.IFLA_BRPORT_PRIORITY,
Link.IFLA_BRPORT_DESIGNATED_PORT,
Link.IFLA_BRPORT_DESIGNATED_COST,
Link.IFLA_BRPORT_ID,
Link.IFLA_BRPORT_NO,
Link.IFLA_BRPORT_GROUP_FWD_MASK,
Link.IFLA_BRPORT_GROUP_FWD_MASKHI):
ifla_info_slave_data[info_data_type] = unpack('=H', sub_attr_data[4:6])[0]
# 4 bytes
elif info_data_type == Link.IFLA_BRPORT_COST:
ifla_info_slave_data[info_data_type] = unpack('=L', sub_attr_data[4:8])[0]
elif ifla_info_slave_kind == 'bond':
# 1 byte
if info_data_type in (
Link.IFLA_BOND_SLAVE_STATE,
Link.IFLA_BOND_SLAVE_MII_STATUS,
Link.IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE,
Link.IFLA_BOND_SLAVE_AD_RX_BYPASS,
):
ifla_info_slave_data[info_data_type] = unpack('=B', sub_attr_data[4])[0]
# 2 bytes
elif info_data_type in (
Link.IFLA_BOND_SLAVE_QUEUE_ID,
Link.IFLA_BOND_SLAVE_AD_AGGREGATOR_ID
):
ifla_info_slave_data[info_data_type] = unpack('=H', sub_attr_data[4:6])[0]
# 4 bytes
elif info_data_type == (
Link.IFLA_BOND_SLAVE_PERM_HWADDR,
Link.IFLA_BOND_SLAVE_LINK_FAILURE_COUNT
):
ifla_info_slave_data[info_data_type] = unpack('=L', sub_attr_data[4:8])[0]
except Exception as e:
self.log.debug('%s: attribute %s: %s'
% (self.value[Link.IFLA_INFO_SLAVE_KIND],
info_data_type,
str(e)))
sub_attr_data = sub_attr_data[info_data_end:]
self.value[Link.IFLA_INFO_SLAVE_DATA] = ifla_info_slave_data
elif sub_attr_type == Link.IFLA_INFO_DATA:
sub_attr_data = data[4:sub_attr_end]
self.value[Link.IFLA_INFO_DATA] = {}
ifla_info_kind = self.value.get(Link.IFLA_INFO_KIND)
if not ifla_info_kind:
self.log.warning('IFLA_INFO_KIND is not known...we cannot parse IFLA_INFO_DATA')
else:
while sub_attr_data:
(info_data_length, info_data_type) = unpack('=HH', sub_attr_data[:4])
info_data_end = padded_length(info_data_length)
try:
if ifla_info_kind == 'vlan':
if info_data_type == Link.IFLA_VLAN_ID:
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=H', sub_attr_data[4:6])[0]
elif info_data_type == Link.IFLA_VLAN_PROTOCOL:
hex_value = '0x%s' % sub_attr_data[4:6].encode('hex')
vlan_protocol = Link.ifla_vlan_protocol_dict.get(int(hex_value, base=16))
if vlan_protocol:
self.value[Link.IFLA_INFO_DATA][info_data_type] = vlan_protocol
else:
self.log.warning('IFLA_VLAN_PROTOCOL: cannot decode vlan protocol %s' % hex_value)
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for decoding IFLA_INFO_KIND vlan type %s (%d), length %d, padded to %d' %
(parent_msg.get_ifla_vlan_string(info_data_type), info_data_type, info_data_length, info_data_end))
elif ifla_info_kind == 'macvlan':
if info_data_type == Link.IFLA_MACVLAN_MODE:
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=L', sub_attr_data[4:8])[0]
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for decoding IFLA_INFO_KIND macvlan type %s (%d), length %d, padded to %d' %
(parent_msg.get_ifla_macvlan_string(info_data_type), info_data_type, info_data_length, info_data_end))
elif ifla_info_kind == 'vxlan':
# IPv4Address
if info_data_type in (Link.IFLA_VXLAN_GROUP,
Link.IFLA_VXLAN_LOCAL):
self.value[Link.IFLA_INFO_DATA][info_data_type] = IPv4Address(unpack('>L', sub_attr_data[4:8])[0])
# 4-byte int
elif info_data_type in (Link.IFLA_VXLAN_ID,
Link.IFLA_VXLAN_LINK,
Link.IFLA_VXLAN_AGEING,
Link.IFLA_VXLAN_LIMIT,
Link.IFLA_VXLAN_PORT_RANGE):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=L', sub_attr_data[4:8])[0]
# 2-byte int
elif info_data_type in (Link.IFLA_VXLAN_PORT, ):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('!H', sub_attr_data[4:6])[0]
# The form '!' is available for those poor souls who claim they can't
# remember whether network byte order is big-endian or little-endian.
# 1-byte int
elif info_data_type in (Link.IFLA_VXLAN_TTL,
Link.IFLA_VXLAN_TOS,
Link.IFLA_VXLAN_LEARNING,
Link.IFLA_VXLAN_PROXY,
Link.IFLA_VXLAN_RSC,
Link.IFLA_VXLAN_L2MISS,
Link.IFLA_VXLAN_L3MISS,
Link.IFLA_VXLAN_UDP_CSUM,
Link.IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
Link.IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
Link.IFLA_VXLAN_REMCSUM_TX,
Link.IFLA_VXLAN_REMCSUM_RX,
Link.IFLA_VXLAN_REPLICATION_TYPE):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=B', sub_attr_data[4])[0]
else:
# sub_attr_end = padded_length(sub_attr_length)
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for decoding IFLA_INFO_KIND vxlan type %s (%d), length %d, padded to %d' %
(parent_msg.get_ifla_vxlan_string(info_data_type), info_data_type, info_data_length, info_data_end))
elif ifla_info_kind == 'bond':
if info_data_type in (Link.IFLA_BOND_AD_INFO, ):
ad_attr_data = sub_attr_data[4:info_data_end]
self.value[Link.IFLA_INFO_DATA][Link.IFLA_BOND_AD_INFO] = {}
while ad_attr_data:
(ad_data_length, ad_data_type) = unpack('=HH', ad_attr_data[:4])
ad_data_end = padded_length(ad_data_length)
if ad_data_type in (Link.IFLA_BOND_AD_INFO_PARTNER_MAC,):
(data1, data2) = unpack('>LHxx', ad_attr_data[4:12])
self.value[Link.IFLA_INFO_DATA][Link.IFLA_BOND_AD_INFO][ad_data_type] = mac_int_to_str(data1 << 16 | data2)
ad_attr_data = ad_attr_data[ad_data_end:]
# 1-byte int
elif info_data_type in (Link.IFLA_BOND_MODE,
Link.IFLA_BOND_USE_CARRIER,
Link.IFLA_BOND_AD_LACP_RATE,
Link.IFLA_BOND_AD_LACP_BYPASS,
Link.IFLA_BOND_XMIT_HASH_POLICY,
Link.IFLA_BOND_NUM_PEER_NOTIF):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=B', sub_attr_data[4])[0]
# 2-bytes int
elif info_data_type == Link.IFLA_BOND_AD_ACTOR_SYS_PRIO:
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=H', sub_attr_data[4:6])[0]
# 4-bytes int
elif info_data_type in (Link.IFLA_BOND_MIIMON,
Link.IFLA_BOND_UPDELAY,
Link.IFLA_BOND_DOWNDELAY,
Link.IFLA_BOND_MIN_LINKS):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=L', sub_attr_data[4:8])[0]
# mac address
elif info_data_type in (Link.IFLA_BOND_AD_ACTOR_SYSTEM, ):
(data1, data2) = unpack('>LHxx', sub_attr_data[4:12])
self.value[Link.IFLA_INFO_DATA][info_data_type] = mac_int_to_str(data1 << 16 | data2)
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for decoding IFLA_INFO_KIND bond type %s (%d), length %d, padded to %d' %
(parent_msg.get_ifla_bond_string(info_data_type), info_data_type, info_data_length, info_data_end))
elif ifla_info_kind == 'bridge':
# 4 bytes
if info_data_type in (Link.IFLA_BR_AGEING_TIME,
Link.IFLA_BR_FORWARD_DELAY,
Link.IFLA_BR_HELLO_TIME,
Link.IFLA_BR_MAX_AGE,
Link.IFLA_BR_STP_STATE,
Link.IFLA_BR_ROOT_PATH_COST,
Link.IFLA_BR_MCAST_HASH_ELASTICITY,
Link.IFLA_BR_MCAST_HASH_MAX,
Link.IFLA_BR_MCAST_LAST_MEMBER_CNT,
Link.IFLA_BR_MCAST_STARTUP_QUERY_CNT):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=L', sub_attr_data[4:8])[0]
# 2 bytes
elif info_data_type in (Link.IFLA_BR_PRIORITY,
Link.IFLA_BR_GROUP_FWD_MASK,
Link.IFLA_BR_ROOT_PORT,
Link.IFLA_BR_VLAN_DEFAULT_PVID):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=H', sub_attr_data[4:6])[0]
elif info_data_type == Link.IFLA_BR_VLAN_PROTOCOL:
hex_value = '0x%s' % sub_attr_data[4:6].encode('hex')
vlan_protocol = Link.ifla_vlan_protocol_dict.get(int(hex_value, base=16))
if vlan_protocol:
self.value[Link.IFLA_INFO_DATA][info_data_type] = vlan_protocol
else:
self.log.warning('IFLA_VLAN_PROTOCOL: cannot decode vlan protocol %s' % hex_value)
# 8 bytes
elif info_data_type in (Link.IFLA_BR_MCAST_MEMBERSHIP_INTVL,
Link.IFLA_BR_MCAST_QUERIER_INTVL,
Link.IFLA_BR_MCAST_LAST_MEMBER_INTVL,
Link.IFLA_BR_MCAST_MEMBERSHIP_INTVL,
Link.IFLA_BR_MCAST_QUERIER_INTVL,
Link.IFLA_BR_MCAST_QUERY_INTVL,
Link.IFLA_BR_MCAST_QUERY_RESPONSE_INTVL,
Link.IFLA_BR_MCAST_STARTUP_QUERY_INTVL):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=Q', sub_attr_data[4:12])[0]
# 1 bytes
elif info_data_type in (Link.IFLA_BR_VLAN_FILTERING,
Link.IFLA_BR_TOPOLOGY_CHANGE,
Link.IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
Link.IFLA_BR_MCAST_ROUTER,
Link.IFLA_BR_MCAST_SNOOPING,
Link.IFLA_BR_MCAST_QUERY_USE_IFADDR,
Link.IFLA_BR_MCAST_QUERIER,
Link.IFLA_BR_NF_CALL_IPTABLES,
Link.IFLA_BR_NF_CALL_IP6TABLES,
Link.IFLA_BR_NF_CALL_ARPTABLES,
Link.IFLA_BR_VLAN_STATS_ENABLED,
Link.IFLA_BR_MCAST_STATS_ENABLED,
Link.IFLA_BR_MCAST_IGMP_VERSION,
Link.IFLA_BR_MCAST_MLD_VERSION):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=B', sub_attr_data[4])[0]
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for decoding IFLA_INFO_KIND bridge type %s (%d), length %d, padded to %d' %
(parent_msg.get_ifla_br_string(info_data_type), info_data_type, info_data_length, info_data_end))
elif ifla_info_kind == 'vrf':
if info_data_type in (Link.IFLA_VRF_TABLE,):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=L', sub_attr_data[4:8])[0]
elif ifla_info_kind in ("gre", "gretap", "erspan", "ip6gre", "ip6gretap", "ip6erspan"):
# 1-byte
if info_data_type in (Link.IFLA_GRE_TTL, Link.IFLA_GRE_TOS, Link.IFLA_GRE_PMTUDISC):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=B', sub_attr_data[4])[0]
# 2-bytes
elif info_data_type in (
Link.IFLA_GRE_IFLAGS,
Link.IFLA_GRE_OFLAGS,
Link.IFLA_GRE_ENCAP_TYPE,
Link.IFLA_GRE_ENCAP_SPORT,
Link.IFLA_GRE_ENCAP_DPORT,
Link.IFLA_GRE_ENCAP_FLAGS
):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=H', sub_attr_data[4:6])[0]
# 4 bytes
elif info_data_type in (Link.IFLA_GRE_LINK, Link.IFLA_GRE_IKEY, Link.IFLA_GRE_OKEY):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=L', sub_attr_data[4:8])[0]
# ip addr
elif info_data_type in (Link.IFLA_GRE_LOCAL, Link.IFLA_GRE_REMOTE):
if ifla_info_kind in ("ip6gre", "ip6gretap", "ip6erspan"):
(data1, data2) = unpack(">QQ", sub_attr_data[4:20])
self.value[Link.IFLA_INFO_DATA][info_data_type] = IPv6Address(data1 << 64 | data2)
else:
self.value[Link.IFLA_INFO_DATA][info_data_type] = IPv4Address(unpack(">L", sub_attr_data[4:8])[0])
else:
self.log.log(SYSLOG_EXTRA_DEBUG,
'Add support for decoding IFLA_INFO_KIND %s type %s (%d), length %d, padded to %d' %
(ifla_info_kind, parent_msg.get_ifla_gre_string(info_data_type), info_data_type,
info_data_length, info_data_end))
elif ifla_info_kind in ("ipip", "sit", "ip6tnl"):
# 1-byte
if info_data_type in (Link.IFLA_IPTUN_TTL, Link.IFLA_IPTUN_TOS, Link.IFLA_IPTUN_PMTUDISC):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=B', sub_attr_data[4])[0]
# 2-bytes
elif info_data_type in (Link.IFLA_IPTUN_ENCAP_TYPE, Link.IFLA_IPTUN_ENCAP_SPORT, Link.IFLA_IPTUN_ENCAP_DPORT, Link.IFLA_IPTUN_ENCAP_FLAGS):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=H', sub_attr_data[4:6])[
0]
# 4 bytes
elif info_data_type == Link.IFLA_IPTUN_LINK:
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=L', sub_attr_data[4:8])[
0]
# ip addr
elif info_data_type in (Link.IFLA_IPTUN_LOCAL, Link.IFLA_IPTUN_REMOTE):
if ifla_info_kind == "ip6tnl":
(data1, data2) = unpack(">QQ", sub_attr_data[4:20])
self.value[Link.IFLA_INFO_DATA][info_data_type] = IPv6Address(data1 << 64 | data2)
else:
self.value[Link.IFLA_INFO_DATA][info_data_type] = IPv4Address(unpack(">L", sub_attr_data[4:8])[0])
else:
self.log.log(SYSLOG_EXTRA_DEBUG,
'Add support for decoding IFLA_INFO_KIND %s type %s (%d), length %d, padded to %d' %
(ifla_info_kind, parent_msg.get_ifla_iptun_string(info_data_type), info_data_type,
info_data_length, info_data_end))
elif ifla_info_kind in ("vti", "vti6"):
# 4 bytes
if info_data_type in (Link.IFLA_VTI_LINK, Link.IFLA_VTI_IKEY, Link.IFLA_VTI_OKEY):
self.value[Link.IFLA_INFO_DATA][info_data_type] = unpack('=L', sub_attr_data[4:8])[0]
# ip addr
elif info_data_type in (Link.IFLA_VTI_LOCAL, Link.IFLA_VTI_REMOTE):
if ifla_info_kind == "vti6":
(data1, data2) = unpack(">QQ", sub_attr_data[4:20])
self.value[Link.IFLA_INFO_DATA][info_data_type] = IPv6Address(data1 << 64 | data2)
else:
self.value[Link.IFLA_INFO_DATA][info_data_type] = IPv4Address(unpack(">L", sub_attr_data[4:8])[0])
else:
self.log.log(SYSLOG_EXTRA_DEBUG,
'Add support for decoding IFLA_INFO_KIND %s type %s (%d), length %d, padded to %d' %
(ifla_info_kind, parent_msg.get_ifla_vti_string(info_data_type), info_data_type,
info_data_length, info_data_end))
else:
self.log.log(SYSLOG_EXTRA_DEBUG, "Add support for decoding IFLA_INFO_KIND %s (%d), length %d, padded to %d" %
(ifla_info_kind, info_data_type, info_data_length, info_data_end))
except Exception as e:
self.log.debug('%s: attribute %s: %s'
% (self.value[Link.IFLA_INFO_KIND],
info_data_type,
str(e)))
sub_attr_data = sub_attr_data[info_data_end:]
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for decoding IFLA_LINKINFO sub-attribute type %s (%d), length %d, padded to %d' %
(parent_msg.get_ifla_info_string(sub_attr_type), sub_attr_type, sub_attr_length, sub_attr_end))
data = data[sub_attr_end:]
# self.log.info('IFLA_LINKINFO values %s' % pformat(self.value))
def dump_lines(self, dump_buffer, line_number, color):
line_number = self.dump_first_line(dump_buffer, line_number, color)
extra = ''
next_sub_attr_line = 0
sub_attr_line = True
for x in xrange(1, self.attr_end/4):
start = x * 4
end = start + 4
if line_number == next_sub_attr_line:
sub_attr_line = True
if sub_attr_line:
sub_attr_line = False
(sub_attr_length, sub_attr_type) = unpack('=HH', self.data[start:start+4])
sub_attr_end = padded_length(sub_attr_length)
next_sub_attr_line = line_number + (sub_attr_end/4)
if sub_attr_end == sub_attr_length:
padded_to = ', '
else:
padded_to = ' padded to %d, ' % sub_attr_end
extra = 'Nested Attribute - Length %s (%d)%s Type %s (%d) %s' % \
(zfilled_hex(sub_attr_length, 4), sub_attr_length,
padded_to,
zfilled_hex(sub_attr_type, 4), sub_attr_type,
Link.ifla_info_to_string.get(sub_attr_type))
else:
extra = ''
dump_buffer.append(data_to_color_text(line_number, color, self.data[start:end], extra))
line_number += 1
return line_number
def get_pretty_value(self, obj=None):
if obj and callable(obj):
return obj(self.value)
value_pretty = self.value
ifla_info_kind = self.value.get(Link.IFLA_INFO_KIND)
ifla_info_slave_kind = self.value.get(Link.IFLA_INFO_SLAVE_KIND)
kind_dict = dict()
# We do this so we can print a more human readable dictionary
# with the names of the nested keys instead of their numbers
# Most of these are placeholders...we need to add support
# for more human readable dictionaries for bond, bridge, etc
kind_dict[Link.IFLA_INFO_DATA] = {
'bond': Link.ifla_bond_to_string,
'vlan': Link.ifla_vlan_to_string,
'vxlan': Link.ifla_vxlan_to_string,
'bridge': Link.ifla_br_to_string,
'macvlan': Link.ifla_macvlan_to_string,
'gre': Link.ifla_gre_to_string,
'gretap': Link.ifla_gre_to_string,
'erspan': Link.ifla_gre_to_string,
'ip6gre': Link.ifla_gre_to_string,
'ip6gretap': Link.ifla_gre_to_string,
'ip6erspan': Link.ifla_gre_to_string,
'vti': Link.ifla_vti_to_string,
'vti6': Link.ifla_vti_to_string,
'ipip': Link.ifla_iptun_to_string,
'sit': Link.ifla_iptun_to_string,
'ip6tnl': Link.ifla_iptun_to_string
}.get(ifla_info_kind, {})
kind_dict[Link.IFLA_INFO_SLAVE_DATA] = {
'bridge': Link.ifla_brport_to_string,
'bond': Link.ifla_bond_slave_to_string
}.get(ifla_info_slave_kind, {})
if ifla_info_kind or ifla_info_slave_kind:
value_pretty = {}
for (sub_key, sub_value) in self.value.iteritems():
sub_key_pretty = "(%2d) %s" % (sub_key, Link.ifla_info_to_string.get(sub_key, 'UNKNOWN'))
sub_value_pretty = sub_value
if sub_key in (Link.IFLA_INFO_DATA, Link.IFLA_INFO_SLAVE_DATA):
kind_to_string_dict = kind_dict.get(sub_key, {})
sub_value_pretty = {}
for (sub_sub_key, sub_sub_value) in sub_value.iteritems():
sub_sub_key_pretty = "(%2d) %s" % (sub_sub_key, kind_to_string_dict.get(sub_sub_key, 'UNKNOWN'))
sub_value_pretty[sub_sub_key_pretty] = sub_sub_value
value_pretty[sub_key_pretty] = sub_value_pretty
return value_pretty
class AttributeIFLA_PROTINFO(Attribute):
"""
IFLA_PROTINFO nested attributes.
"""
def __init__(self, atype, string, family, logger):
Attribute.__init__(self, atype, string, logger)
self.family = family
def encode(self):
pack_layout = [self.HEADER_PACK]
payload = [0, self.atype | NLA_F_NESTED]
attr_length_index = 0
if self.family not in (AF_BRIDGE,):
raise Exception('Unsupported IFLA_PROTINFO family %d' % self.family)
# For now this assumes that all data will be packed in the native endian
# order (=). If a field is added that needs to be packed via network
# order (>) then some smarts will need to be added to split the pack_layout
# string at the >, split the payload and make the needed pack() calls.
#
# Until we cross that bridge though we will keep things nice and simple and
# pack everything via a single pack() call.
for (sub_attr_type, sub_attr_value) in self.value.iteritems():
sub_attr_pack_layout = ['=', 'HH']
sub_attr_payload = [0, sub_attr_type]
sub_attr_length_index = 0
if self.family == AF_BRIDGE:
# 1 Byte attributes
if sub_attr_type in (Link.IFLA_BRPORT_STATE,
Link.IFLA_BRPORT_MODE,
Link.IFLA_BRPORT_GUARD,
Link.IFLA_BRPORT_PROTECT,
Link.IFLA_BRPORT_FAST_LEAVE,
Link.IFLA_BRPORT_LEARNING,
Link.IFLA_BRPORT_UNICAST_FLOOD,
Link.IFLA_BRPORT_PROXYARP,
Link.IFLA_BRPORT_LEARNING_SYNC,
Link.IFLA_BRPORT_PROXYARP_WIFI,
Link.IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
Link.IFLA_BRPORT_CONFIG_PENDING,
Link.IFLA_BRPORT_FLUSH,
Link.IFLA_BRPORT_MULTICAST_ROUTER,
Link.IFLA_BRPORT_PEER_LINK,
Link.IFLA_BRPORT_DUAL_LINK,
Link.IFLA_BRPORT_ARP_SUPPRESS,
Link.IFLA_BRPORT_DOWN_PEERLINK_REDIRECT):
sub_attr_pack_layout.append('B')
sub_attr_payload.append(sub_attr_value)
sub_attr_pack_layout.extend('xxx')
# 2 Byte attributes
elif sub_attr_type in (Link.IFLA_BRPORT_PRIORITY,
Link.IFLA_BRPORT_DESIGNATED_PORT,
Link.IFLA_BRPORT_DESIGNATED_COST,
Link.IFLA_BRPORT_ID,
Link.IFLA_BRPORT_NO):
sub_attr_pack_layout.append('H')
sub_attr_payload.append(sub_attr_value)
sub_attr_pack_layout.extend('xx')
# 4 Byte attributes
elif sub_attr_type in (Link.IFLA_BRPORT_COST,):
sub_attr_pack_layout.append('L')
sub_attr_payload.append(sub_attr_value)
# 8 Byte attributes
elif sub_attr_type in (Link.IFLA_BRPORT_MESSAGE_AGE_TIMER,
Link.IFLA_BRPORT_FORWARD_DELAY_TIMER,
Link.IFLA_BRPORT_HOLD_TIMER):
sub_attr_pack_layout.append('Q')
sub_attr_payload.append(sub_attr_value)
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for encoding IFLA_PROTINFO sub-attribute type %d' % sub_attr_type)
sub_attr_length = calcsize(''.join(sub_attr_pack_layout))
sub_attr_payload[sub_attr_length_index] = sub_attr_length
# add padding
for x in xrange(self.pad_bytes_needed(sub_attr_length)):
sub_attr_pack_layout.append('x')
# The [1:] is to remove the leading = so that when we do the ''.join() later
# we do not end up with an = in the middle of the pack layout string. There
# will be an = at the beginning via self.HEADER_PACK
sub_attr_pack_layout = sub_attr_pack_layout[1:]
# Now extend the ovarall attribute pack_layout/payload to include this sub-attribute
pack_layout.extend(sub_attr_pack_layout)
payload.extend(sub_attr_payload)
pack_layout = ''.join(pack_layout)
# Fill in the length field
length = calcsize(pack_layout)
payload[attr_length_index] = length
raw = pack(pack_layout, *payload)
raw = self.pad(length, raw)
return raw
def decode(self, parent_msg, data):
"""
value is a dictionary such as:
{
Link.IFLA_BRPORT_STATE : 3,
Link.IFLA_BRPORT_PRIORITY : 8
Link.IFLA_BRPORT_COST : 2
...
}
"""
self.decode_length_type(data)
self.value = {}
data = self.data[4:]
while data:
(sub_attr_length, sub_attr_type) = unpack('=HH', data[:4])
sub_attr_end = padded_length(sub_attr_length)
if not sub_attr_length:
self.log.error('parsed a zero length sub-attr')
return
if self.family == AF_BRIDGE:
# 1 Byte attributes
if sub_attr_type in (Link.IFLA_BRPORT_STATE,
Link.IFLA_BRPORT_MODE,
Link.IFLA_BRPORT_GUARD,
Link.IFLA_BRPORT_PROTECT,
Link.IFLA_BRPORT_FAST_LEAVE,
Link.IFLA_BRPORT_LEARNING,
Link.IFLA_BRPORT_UNICAST_FLOOD,
Link.IFLA_BRPORT_PROXYARP,
Link.IFLA_BRPORT_LEARNING_SYNC,
Link.IFLA_BRPORT_PROXYARP_WIFI,
Link.IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
Link.IFLA_BRPORT_CONFIG_PENDING,
Link.IFLA_BRPORT_FLUSH,
Link.IFLA_BRPORT_MULTICAST_ROUTER,
Link.IFLA_BRPORT_PEER_LINK,
Link.IFLA_BRPORT_DUAL_LINK,
Link.IFLA_BRPORT_ARP_SUPPRESS,
Link.IFLA_BRPORT_DOWN_PEERLINK_REDIRECT):
self.value[sub_attr_type] = unpack('=B', data[4])[0]
# 2 Byte attributes
elif sub_attr_type in (Link.IFLA_BRPORT_PRIORITY,
Link.IFLA_BRPORT_DESIGNATED_PORT,
Link.IFLA_BRPORT_DESIGNATED_COST,
Link.IFLA_BRPORT_ID,
Link.IFLA_BRPORT_NO):
self.value[sub_attr_type] = unpack('=H', data[4:6])[0]
# 4 Byte attributes
elif sub_attr_type in (Link.IFLA_BRPORT_COST,):
self.value[sub_attr_type] = unpack('=L', data[4:8])[0]
# 8 Byte attributes
elif sub_attr_type in (Link.IFLA_BRPORT_MESSAGE_AGE_TIMER,
Link.IFLA_BRPORT_FORWARD_DELAY_TIMER,
Link.IFLA_BRPORT_HOLD_TIMER):
self.value[sub_attr_type] = unpack('=Q', data[4:12])[0]
else:
self.log.log(SYSLOG_EXTRA_DEBUG, 'Add support for decoding IFLA_PROTINFO sub-attribute type %s (%d), length %d, padded to %d' %
(parent_msg.get_ifla_brport_string(sub_attr_type), sub_attr_type, sub_attr_length, sub_attr_end))
data = data[sub_attr_end:]
def dump_lines(self, dump_buffer, line_number, color):
line_number = self.dump_first_line(dump_buffer, line_number, color)
extra = ''
next_sub_attr_line = 0
sub_attr_line = True
for x in xrange(1, self.attr_end/4):
start = x * 4
end = start + 4
if line_number == next_sub_attr_line:
sub_attr_line = True
if sub_attr_line:
sub_attr_line = False
(sub_attr_length, sub_attr_type) = unpack('=HH', self.data[start:start+4])
sub_attr_end = padded_length(sub_attr_length)
next_sub_attr_line = line_number + (sub_attr_end/4)
if sub_attr_end == sub_attr_length:
padded_to = ', '
else:
padded_to = ' padded to %d, ' % sub_attr_end
extra = 'Nested Attribute - Length %s (%d)%s Type %s (%d) %s' % \
(zfilled_hex(sub_attr_length, 4), sub_attr_length,
padded_to,
zfilled_hex(sub_attr_type, 4), sub_attr_type,
Link.ifla_brport_to_string.get(sub_attr_type))
else:
extra = ''
dump_buffer.append(data_to_color_text(line_number, color, self.data[start:end], extra))
line_number += 1
return line_number
def get_pretty_value(self, obj=None):
if obj and callable(obj):
return obj(self.value)
value_pretty = {}
for (sub_key, sub_value) in self.value.iteritems():
sub_key_pretty = "(%2d) %s" % (sub_key, Link.ifla_brport_to_string.get(sub_key, 'UNKNOWN'))
sub_value_pretty = sub_value
value_pretty[sub_key_pretty] = sub_value_pretty
return value_pretty
class NetlinkPacket(object):
"""
Netlink Header
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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Flags |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence Number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Process ID (PID) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
"""
header_PACK = 'IHHII'
header_LEN = calcsize(header_PACK)
# Netlink packet types
# /usr/include/linux/rtnetlink.h
type_to_string = {
NLMSG_NOOP : 'NLMSG_NOOP',
NLMSG_ERROR : 'NLMSG_ERROR',
NLMSG_DONE : 'NLMSG_DONE',
NLMSG_OVERRUN : 'NLMSG_OVERRUN',
RTM_NEWLINK : 'RTM_NEWLINK',
RTM_DELLINK : 'RTM_DELLINK',
RTM_GETLINK : 'RTM_GETLINK',
RTM_SETLINK : 'RTM_SETLINK',
RTM_NEWADDR : 'RTM_NEWADDR',
RTM_DELADDR : 'RTM_DELADDR',
RTM_GETADDR : 'RTM_GETADDR',
RTM_NEWNEIGH : 'RTM_NEWNEIGH',
RTM_DELNEIGH : 'RTM_DELNEIGH',
RTM_GETNEIGH : 'RTM_GETNEIGH',
RTM_NEWROUTE : 'RTM_NEWROUTE',
RTM_DELROUTE : 'RTM_DELROUTE',
RTM_GETROUTE : 'RTM_GETROUTE',
RTM_NEWQDISC : 'RTM_NEWQDISC',
RTM_DELQDISC : 'RTM_DELQDISC',
RTM_GETQDISC : 'RTM_GETQDISC',
RTM_NEWNETCONF: 'RTM_NEWNETCONF',
RTM_GETNETCONF: 'RTM_GETNETCONF'
}
af_family_to_string = {
AF_INET : 'inet',
AF_INET6 : 'inet6'
}
def __init__(self, msgtype, debug, owner_logger=None, use_color=True):
self.msgtype = msgtype
self.attributes = {}
self.dump_buffer = ['']
self.line_number = 1
self.debug = debug
self.message = None
self.use_color = use_color
self.family = None
if owner_logger:
self.log = owner_logger
else:
self.log = log
def __str__(self):
return self.get_type_string()
def get_string(self, to_string, index):
"""
Used to do lookups in all of the various FOO_to_string dictionaries
but returns 'UNKNOWN' if the key is bogus
"""
if index in to_string:
return to_string[index]
return 'UNKNOWN'
def get_type_string(self, msgtype=None):
if not msgtype:
msgtype = self.msgtype
return self.get_string(self.type_to_string, msgtype)
def get_flags_string(self):
foo = []
for (flag, flag_string) in self.flag_to_string.iteritems():
if self.flags & flag:
foo.append(flag_string)
return ', '.join(foo)
def decode_packet(self, length, flags, seq, pid, data):
self.length = length
self.flags = flags
self.seq = seq
self.pid = pid
self.header_data = data[0:self.header_LEN]
self.msg_data = data[self.header_LEN:length]
self.decode_netlink_header()
self.decode_service_header()
# NLMSG_ERROR is special case, it does not have attributes to decode
if self.msgtype != NLMSG_ERROR:
self.decode_attributes()
def get_netlink_header_flags_string(self, msg_type, flags):
foo = []
if flags & NLM_F_REQUEST:
foo.append('NLM_F_REQUEST')
if flags & NLM_F_MULTI:
foo.append('NLM_F_MULTI')
if flags & NLM_F_ACK:
foo.append('NLM_F_ACK')
if flags & NLM_F_ECHO:
foo.append('NLM_F_ECHO')
# Modifiers to GET query
if msg_type in (RTM_GETLINK, RTM_GETADDR, RTM_GETNEIGH, RTM_GETROUTE, RTM_GETQDISC, RTM_GETNETCONF):
if flags & NLM_F_DUMP:
foo.append('NLM_F_DUMP')
else:
if flags & NLM_F_MATCH:
foo.append('NLM_F_MATCH')
if flags & NLM_F_ROOT:
foo.append('NLM_F_ROOT')
if flags & NLM_F_ATOMIC:
foo.append('NLM_F_ATOMIC')
# Modifiers to NEW query
elif msg_type in (RTM_NEWLINK, RTM_NEWADDR, RTM_NEWNEIGH, RTM_NEWROUTE, RTM_NEWQDISC):
if flags & NLM_F_REPLACE:
foo.append('NLM_F_REPLACE')
if flags & NLM_F_EXCL:
foo.append('NLM_F_EXCL')
if flags & NLM_F_CREATE:
foo.append('NLM_F_CREATE')
if flags & NLM_F_APPEND:
foo.append('NLM_F_APPEND')
return ', '.join(foo)
# When we first RXed the netlink message we had to decode the header to
# determine what type of netlink message we were dealing with. So the
# header has actually already been decoded...what we do here is
# populate the dump_buffer lines with the header content.
def decode_netlink_header(self):
if not self.debug:
return
header_data = self.header_data
# Print the netlink header in red
netlink_header_length = 16
color = red if self.use_color else None
color_start = "\033[%dm" % color if color else ""
color_end = "\033[0m" if color else ""
self.dump_buffer.append(" %sNetlink Header%s" % (color_start, color_end))
for x in range(0, netlink_header_length/4):
start = x * 4
end = start + 4
if self.line_number == 1:
data = unpack('=L', header_data[start:end])[0]
extra = "Length %s (%d)" % (zfilled_hex(data, 8), data)
elif self.line_number == 2:
(data1, data2) = unpack('HH', header_data[start:end])
extra = "Type %s (%d - %s), Flags %s (%s)" % \
(zfilled_hex(data1, 4), data1, self.get_type_string(data1),
zfilled_hex(data2, 4), self.get_netlink_header_flags_string(data1, data2))
elif self.line_number == 3:
data = unpack('=L', header_data[start:end])[0]
extra = "Sequence Number %s (%d)" % (zfilled_hex(data, 8), data)
elif self.line_number == 4:
data = unpack('=L', header_data[start:end])[0]
extra = "Process ID %s (%d)" % (zfilled_hex(data, 8), data)
else:
extra = "Unexpected line number %d" % self.line_number
self.dump_buffer.append(data_to_color_text(self.line_number, color, header_data[start:end], extra))
self.line_number += 1
def decode_attributes(self):
"""
Decode the attributes and populate the dump_buffer
"""
if self.debug:
self.dump_buffer.append(" Attributes")
color = green if self.use_color else None
data = self.msg_data[self.LEN:]
while data:
(length, attr_type) = unpack('=HH', data[:4])
# If this is zero we will stay in this loop for forever
if not length:
self.log.error('Length is zero')
return
if len(data) < length:
self.log.error("Buffer underrun %d < %d" % (len(data), length))
return
attr = self.add_attribute(attr_type, None)
# Find the end of 'data' for this attribute and decode our section
# of 'data'. attributes are padded for alignment thus the attr_end.
#
# How the attribute is decoded/unpacked is specific per AttributeXXXX class.
attr_end = padded_length(length)
attr.decode(self, data[0:attr_end])
if self.debug:
self.line_number = attr.dump_lines(self.dump_buffer, self.line_number, color)
# Alternate back and forth between green and blue
if self.use_color:
if color == green:
color = blue
else:
color = green
data = data[attr_end:]
def add_attribute(self, attr_type, value):
nested = True if attr_type & NLA_F_NESTED else False
net_byteorder = True if attr_type & NLA_F_NET_BYTEORDER else False
attr_type = attr_type & NLA_TYPE_MASK
# Given an attr_type (say RTA_DST) find the type of AttributeXXXX class
# that we will use to store this attribute...AttributeIPAddress in the
# case of RTA_DST.
if attr_type in self.attribute_to_class:
(attr_string, attr_class) = self.attribute_to_class[attr_type]
'''
attribute_to_class is a dictionary where the key is the attr_type, it doesn't
take the family into account. For now we'll handle this as a special case for
MPLS but long term we may need to make key a tuple of the attr_type and family.
'''
if self.msgtype not in (RTM_NEWNETCONF, RTM_GETNETCONF) and attr_type == Route.RTA_DST and self.family == AF_MPLS:
attr_string = 'RTA_DST'
attr_class = AttributeMplsLabel
else:
attr_string = "UNKNOWN_ATTRIBUTE_%d" % attr_type
attr_class = AttributeGeneric
self.log.debug("Attribute %d is not defined in %s.attribute_to_class, assuming AttributeGeneric" %
(attr_type, self.__class__.__name__))
attr = attr_class(attr_type, attr_string, self.family, self.log)
attr.set_value(value)
attr.set_nested(nested)
attr.set_net_byteorder(net_byteorder)
# self.attributes is a dictionary keyed by the attribute type where
# the value is an instance of the corresponding AttributeXXXX class.
self.attributes[attr_type] = attr
return attr
def get_attribute_value(self, attr_type, default=None):
if attr_type not in self.attributes:
return default
return self.attributes[attr_type].value
def get_attr_string(self, attr_type):
"""
Example: If attr_type is Address.IFA_CACHEINFO return the string 'IFA_CACHEINFO'
"""
if attr_type in self.attribute_to_class:
(attr_string, attr_class) = self.attribute_to_class[attr_type]
return attr_string
return str(attr_type)
def build_message(self, seq, pid):
self.seq = seq
self.pid = pid
attrs = ''
for attr in self.attributes.itervalues():
attrs += attr.encode()
self.length = self.header_LEN + len(self.body) + len(attrs)
self.header_data = pack(self.header_PACK, self.length, self.msgtype, self.flags, self.seq, self.pid)
self.msg_data = self.body + attrs
self.message = self.header_data + self.msg_data
if self.debug:
self.decode_netlink_header()
self.decode_service_header()
self.decode_attributes()
self.dump("TXed %s, length %d, seq %d, pid %d, flags 0x%x (%s)" %
(self, self.length, self.seq, self.pid, self.flags,
self.get_netlink_header_flags_string(self.msgtype, self.flags)))
def pretty_display_dict(self, dic, level):
for k,v in dic.iteritems():
if isinstance(v, dict):
self.log.debug(' '*level + str(k) + ':')
self.pretty_display_dict(v, level+5)
else:
self.log.debug(' '*level + str(k) + ': ' + str(v))
# Print the netlink message in hex. This is only used for debugging.
def dump(self, desc=None):
attr_string = {}
if desc is None:
desc = "RXed %s, length %d, seq %d, pid %d, flags 0x%x" % (self, self.length, self.seq, self.pid, self.flags)
for (attr_type, attr_obj) in self.attributes.iteritems():
key_string = "(%2d) %s" % (attr_type, self.get_attr_string(attr_type))
attr_string[key_string] = attr_obj.get_pretty_value()
if self.use_color:
self.log.debug("%s\n%s\n\nAttributes Summary\n%s\n" %
(desc, '\n'.join(self.dump_buffer), pformat(attr_string)))
else:
# Assume if we are not allowing color output we also don't want embedded
# newline characters in the output. Output each line individually.
self.log.debug(desc)
for line in self.dump_buffer:
self.log.debug(line)
self.log.debug("")
self.log.debug("Attributes Summary")
self.pretty_display_dict(attr_string, 1)
class Address(NetlinkPacket):
"""
Service Header
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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Family | Length | Flags | Scope |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Interface Index |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
"""
# Address attributes
# /usr/include/linux/if_addr.h
IFA_UNSPEC = 0x00
IFA_ADDRESS = 0x01
IFA_LOCAL = 0x02
IFA_LABEL = 0x03
IFA_BROADCAST = 0x04
IFA_ANYCAST = 0x05
IFA_CACHEINFO = 0x06
IFA_MULTICAST = 0x07
IFA_FLAGS = 0x08
attribute_to_class = {
IFA_UNSPEC : ('IFA_UNSPEC', AttributeGeneric),
IFA_ADDRESS : ('IFA_ADDRESS', AttributeIPAddress),
IFA_LOCAL : ('IFA_LOCAL', AttributeIPAddress),
IFA_LABEL : ('IFA_LABEL', AttributeString),
IFA_BROADCAST : ('IFA_BROADCAST', AttributeIPAddress),
IFA_ANYCAST : ('IFA_ANYCAST', AttributeIPAddress),
IFA_CACHEINFO : ('IFA_CACHEINFO', AttributeGeneric),
IFA_MULTICAST : ('IFA_MULTICAST', AttributeIPAddress),
IFA_FLAGS : ('IFA_FLAGS', AttributeGeneric)
}
# Address flags
# /usr/include/linux/if_addr.h
IFA_F_SECONDARY = 0x01
IFA_F_NODAD = 0x02
IFA_F_OPTIMISTIC = 0x04
IFA_F_DADFAILED = 0x08
IFA_F_HOMEADDRESS = 0x10
IFA_F_DEPRECATED = 0x20
IFA_F_TENTATIVE = 0x40
IFA_F_PERMANENT = 0x80
flag_to_string = {
IFA_F_SECONDARY : 'IFA_F_SECONDARY',
IFA_F_NODAD : 'IFA_F_NODAD',
IFA_F_OPTIMISTIC : 'IFA_F_OPTIMISTIC',
IFA_F_DADFAILED : 'IFA_F_DADFAILED',
IFA_F_HOMEADDRESS : 'IFA_F_HOMEADDRESS',
IFA_F_DEPRECATED : 'IFA_F_DEPRECATED',
IFA_F_TENTATIVE : 'IFA_F_TENTATIVE',
IFA_F_PERMANENT : 'IFA_F_PERMANENT'
}
def __init__(self, msgtype, debug=False, logger=None, use_color=True):
NetlinkPacket.__init__(self, msgtype, debug, logger, use_color)
self.PACK = '4Bi'
self.LEN = calcsize(self.PACK)
def decode_service_header(self):
# Nothing to do if the message did not contain a service header
if self.length == self.header_LEN:
return
(self.family, self.prefixlen, self.flags, self.scope,
self.ifindex) = \
unpack(self.PACK, self.msg_data[:self.LEN])
if self.debug:
color = yellow if self.use_color else None
color_start = "\033[%dm" % color if color else ""
color_end = "\033[0m" if color else ""
self.dump_buffer.append(" %sService Header%s" % (color_start, color_end))
for x in range(0, self.LEN/4):
if self.line_number == 5:
extra = "Family %s (%s:%d), Length %s (%d), Flags %s, Scope %s (%d)" % \
(zfilled_hex(self.family, 2), get_family_str(self.family), self.family,
zfilled_hex(self.prefixlen, 2), self.prefixlen,
zfilled_hex(self.flags, 2),
zfilled_hex(self.scope, 2), self.scope)
elif self.line_number == 6:
extra = "Interface Index %s (%d)" % (zfilled_hex(self.ifindex, 8), self.ifindex)
else:
extra = "Unexpected line number %d" % self.line_number
start = x * 4
end = start + 4
self.dump_buffer.append(data_to_color_text(self.line_number, color, self.msg_data[start:end], extra))
self.line_number += 1
class Error(NetlinkPacket):
# Error codes
# /include/netlink/errno.h
NLE_SUCCESS = 0x00
NLE_FAILURE = 0x01
NLE_INTR = 0x02
NLE_BAD_SOCK = 0x03
NLE_AGAIN = 0x04
NLE_NOMEM = 0x05
NLE_EXIST = 0x06
NLE_INVAL = 0x07
NLE_RANGE = 0x08
NLE_MSGSIZE = 0x09
NLE_OPNOTSUPP = 0x0A
NLE_AF_NOSUPPORT = 0x0B
NLE_OBJ_NOTFOUND = 0x0C
NLE_NOATTR = 0x0D
NLE_MISSING_ATTR = 0x0E
NLE_AF_MISMATCH = 0x0F
NLE_SEQ_MISMATCH = 0x10
NLE_MSG_OVERFLOW = 0x11
NLE_MSG_TRUNC = 0x12
NLE_NOADDR = 0x13
NLE_SRCRT_NOSUPPORT = 0x14
NLE_MSG_TOOSHORT = 0x15
NLE_MSGTYPE_NOSUPPORT = 0x16
NLE_OBJ_MISMATCH = 0x17
NLE_NOCACHE = 0x18
NLE_BUSY = 0x19
NLE_PROTO_MISMATCH = 0x1A
NLE_NOACCESS = 0x1B
NLE_PERM = 0x1C
NLE_PKTLOC_FILE = 0x1D
NLE_PARSE_ERR = 0x1E
NLE_NODEV = 0x1F
NLE_IMMUTABLE = 0x20
NLE_DUMP_INTR = 0x21
error_to_string = {
NLE_SUCCESS : 'NLE_SUCCESS',
NLE_FAILURE : 'NLE_FAILURE',
NLE_INTR : 'NLE_INTR',
NLE_BAD_SOCK : 'NLE_BAD_SOCK',
NLE_AGAIN : 'NLE_AGAIN',
NLE_NOMEM : 'NLE_NOMEM',
NLE_EXIST : 'NLE_EXIST',
NLE_INVAL : 'NLE_INVAL',
NLE_RANGE : 'NLE_RANGE',
NLE_MSGSIZE : 'NLE_MSGSIZE',
NLE_OPNOTSUPP : 'NLE_OPNOTSUPP',
NLE_AF_NOSUPPORT : 'NLE_AF_NOSUPPORT',
NLE_OBJ_NOTFOUND : 'NLE_OBJ_NOTFOUND',
NLE_NOATTR : 'NLE_NOATTR',
NLE_MISSING_ATTR : 'NLE_MISSING_ATTR',
NLE_AF_MISMATCH : 'NLE_AF_MISMATCH',
NLE_SEQ_MISMATCH : 'NLE_SEQ_MISMATCH',
NLE_MSG_OVERFLOW : 'NLE_MSG_OVERFLOW',
NLE_MSG_TRUNC : 'NLE_MSG_TRUNC',
NLE_NOADDR : 'NLE_NOADDR',
NLE_SRCRT_NOSUPPORT : 'NLE_SRCRT_NOSUPPORT',
NLE_MSG_TOOSHORT : 'NLE_MSG_TOOSHORT',
NLE_MSGTYPE_NOSUPPORT : 'NLE_MSGTYPE_NOSUPPORT',
NLE_OBJ_MISMATCH : 'NLE_OBJ_MISMATCH',
NLE_NOCACHE : 'NLE_NOCACHE',
NLE_BUSY : 'NLE_BUSY',
NLE_PROTO_MISMATCH : 'NLE_PROTO_MISMATCH',
NLE_NOACCESS : 'NLE_NOACCESS',
NLE_PERM : 'NLE_PERM',
NLE_PKTLOC_FILE : 'NLE_PKTLOC_FILE',
NLE_PARSE_ERR : 'NLE_PARSE_ERR',
NLE_NODEV : 'NLE_NODEV',
NLE_IMMUTABLE : 'NLE_IMMUTABLE',
NLE_DUMP_INTR : 'NLE_DUMP_INTR'
}
def __init__(self, msgtype, debug=False, logger=None, use_color=True):
NetlinkPacket.__init__(self, msgtype, debug, logger, use_color)
self.PACK = '=iLHHLL'
self.LEN = calcsize(self.PACK)
def decode_service_header(self):
# Nothing to do if the message did not contain a service header
if self.length == self.header_LEN:
return
(self.negative_errno, self.bad_msg_len, self.bad_msg_type,
self.bad_msg_flag, self.bad_msg_seq, self.bad_msg_pid) =\
unpack(self.PACK, self.msg_data[:self.LEN])
if self.debug:
color = yellow if self.use_color else None
color_start = "\033[%dm" % color if color else ""
color_end = "\033[0m" if color else ""
self.dump_buffer.append(" %sService Header%s" % (color_start, color_end))
for x in range(0, self.LEN/4):
if self.line_number == 5:
extra = "Error Number %s is %s" % (self.negative_errno, self.error_to_string.get(abs(self.negative_errno)))
# zfilled_hex(self.negative_errno, 2)
elif self.line_number == 6:
extra = "Length %s (%d)" % (zfilled_hex(self.bad_msg_len, 8), self.bad_msg_len)
elif self.line_number == 7:
extra = "Type %s (%d - %s), Flags %s (%s)" % \
(zfilled_hex(self.bad_msg_type, 4), self.bad_msg_type, self.get_type_string(self.bad_msg_type),
zfilled_hex(self.bad_msg_flag, 4), self.get_netlink_header_flags_string(self.bad_msg_type, self.bad_msg_flag))
elif self.line_number == 8:
extra = "Sequence Number %s (%d)" % (zfilled_hex(self.bad_msg_seq, 8), self.bad_msg_seq)
elif self.line_number == 9:
extra = "Process ID %s (%d)" % (zfilled_hex(self.bad_msg_pid, 8), self.bad_msg_pid)
else:
extra = "Unexpected line number %d" % self.line_number
start = x * 4
end = start + 4
self.dump_buffer.append(data_to_color_text(self.line_number, color, self.msg_data[start:end], extra))
self.line_number += 1
class Link(NetlinkPacket):
"""
Service Header
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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Family | Reserved | Device Type |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Interface Index |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Device Flags |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Change Mask |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
"""
# Link attributes
# /usr/include/linux/if_link.h
IFLA_UNSPEC = 0
IFLA_ADDRESS = 1
IFLA_BROADCAST = 2
IFLA_IFNAME = 3
IFLA_MTU = 4
IFLA_LINK = 5
IFLA_QDISC = 6
IFLA_STATS = 7
IFLA_COST = 8
IFLA_PRIORITY = 9
IFLA_MASTER = 10
IFLA_WIRELESS = 11
IFLA_PROTINFO = 12
IFLA_TXQLEN = 13
IFLA_MAP = 14
IFLA_WEIGHT = 15
IFLA_OPERSTATE = 16
IFLA_LINKMODE = 17
IFLA_LINKINFO = 18
IFLA_NET_NS_PID = 19
IFLA_IFALIAS = 20
IFLA_NUM_VF = 21
IFLA_VFINFO_LIST = 22
IFLA_STATS64 = 23
IFLA_VF_PORTS = 24
IFLA_PORT_SELF = 25
IFLA_AF_SPEC = 26
IFLA_GROUP = 27
IFLA_NET_NS_FD = 28
IFLA_EXT_MASK = 29
IFLA_PROMISCUITY = 30
IFLA_NUM_TX_QUEUES = 31
IFLA_NUM_RX_QUEUES = 32
IFLA_CARRIER = 33
IFLA_PHYS_PORT_ID = 34
IFLA_CARRIER_CHANGES = 35
IFLA_PHYS_SWITCH_ID = 36
IFLA_LINK_NETNSID = 37
IFLA_PHYS_PORT_NAME = 38
IFLA_PROTO_DOWN = 39
IFLA_GSO_MAX_SEGS = 40
IFLA_GSO_MAX_SIZE = 41
attribute_to_class = {
IFLA_UNSPEC : ('IFLA_UNSPEC', AttributeGeneric),
IFLA_ADDRESS : ('IFLA_ADDRESS', AttributeMACAddress),
IFLA_BROADCAST : ('IFLA_BROADCAST', AttributeMACAddress),
IFLA_IFNAME : ('IFLA_IFNAME', AttributeStringInterfaceName),
IFLA_MTU : ('IFLA_MTU', AttributeFourByteValue),
IFLA_LINK : ('IFLA_LINK', AttributeFourByteValue),
IFLA_QDISC : ('IFLA_QDISC', AttributeString),
IFLA_STATS : ('IFLA_STATS', AttributeGeneric),
IFLA_COST : ('IFLA_COST', AttributeGeneric),
IFLA_PRIORITY : ('IFLA_PRIORITY', AttributeGeneric),
IFLA_MASTER : ('IFLA_MASTER', AttributeFourByteValue),
IFLA_WIRELESS : ('IFLA_WIRELESS', AttributeGeneric),
IFLA_PROTINFO : ('IFLA_PROTINFO', AttributeIFLA_PROTINFO),
IFLA_TXQLEN : ('IFLA_TXQLEN', AttributeFourByteValue),
IFLA_MAP : ('IFLA_MAP', AttributeGeneric),
IFLA_WEIGHT : ('IFLA_WEIGHT', AttributeGeneric),
IFLA_OPERSTATE : ('IFLA_OPERSTATE', AttributeOneByteValue),
IFLA_LINKMODE : ('IFLA_LINKMODE', AttributeOneByteValue),
IFLA_LINKINFO : ('IFLA_LINKINFO', AttributeIFLA_LINKINFO),
IFLA_NET_NS_PID : ('IFLA_NET_NS_PID', AttributeGeneric),
IFLA_IFALIAS : ('IFLA_IFALIAS', AttributeGeneric),
IFLA_NUM_VF : ('IFLA_NUM_VF', AttributeGeneric),
IFLA_VFINFO_LIST : ('IFLA_VFINFO_LIST', AttributeGeneric),
IFLA_STATS64 : ('IFLA_STATS64', AttributeGeneric),
IFLA_VF_PORTS : ('IFLA_VF_PORTS', AttributeGeneric),
IFLA_PORT_SELF : ('IFLA_PORT_SELF', AttributeGeneric),
IFLA_AF_SPEC : ('IFLA_AF_SPEC', AttributeIFLA_AF_SPEC),
IFLA_GROUP : ('IFLA_GROUP', AttributeFourByteValue),
IFLA_NET_NS_FD : ('IFLA_NET_NS_FD', AttributeGeneric),
IFLA_EXT_MASK : ('IFLA_EXT_MASK', AttributeFourByteValue),
IFLA_PROMISCUITY : ('IFLA_PROMISCUITY', AttributeGeneric),
IFLA_NUM_TX_QUEUES : ('IFLA_NUM_TX_QUEUES', AttributeGeneric),
IFLA_NUM_RX_QUEUES : ('IFLA_NUM_RX_QUEUES', AttributeGeneric),
IFLA_CARRIER : ('IFLA_CARRIER', AttributeGeneric),
IFLA_PHYS_PORT_ID : ('IFLA_PHYS_PORT_ID', AttributeGeneric),
IFLA_CARRIER_CHANGES : ('IFLA_CARRIER_CHANGES', AttributeGeneric),
IFLA_PHYS_SWITCH_ID : ('IFLA_PHYS_SWITCH_ID', AttributeGeneric),
IFLA_LINK_NETNSID : ('IFLA_LINK_NETNSID', AttributeGeneric),
IFLA_PHYS_PORT_NAME : ('IFLA_PHYS_PORT_NAME', AttributeGeneric),
IFLA_PROTO_DOWN : ('IFLA_PROTO_DOWN', AttributeOneByteValue),
IFLA_GSO_MAX_SEGS : ('IFLA_GSO_MAX_SEGS', AttributeFourByteValue),
IFLA_GSO_MAX_SIZE : ('IFLA_GSO_MAX_SIZE', AttributeFourByteValue)
}
# Link flags
# /usr/include/linux/if.h
IFF_UP = 0x0001 # Interface is administratively up.
IFF_BROADCAST = 0x0002 # Valid broadcast address set.
IFF_DEBUG = 0x0004 # Internal debugging flag.
IFF_LOOPBACK = 0x0008 # Interface is a loopback interface.
IFF_POINTOPOINT = 0x0010 # Interface is a point-to-point link.
IFF_NOTRAILERS = 0x0020 # Avoid use of trailers.
IFF_RUNNING = 0x0040 # Interface is operationally up.
IFF_NOARP = 0x0080 # No ARP protocol needed for this interface.
IFF_PROMISC = 0x0100 # Interface is in promiscuous mode.
IFF_ALLMULTI = 0x0200 # Receive all multicast packets.
IFF_MASTER = 0x0400 # Master of a load balancing bundle.
IFF_SLAVE = 0x0800 # Slave of a load balancing bundle.
IFF_MULTICAST = 0x1000 # Supports multicast.
IFF_PORTSEL = 0x2000 # Is able to select media type via ifmap.
IFF_AUTOMEDIA = 0x4000 # Auto media selection active.
IFF_DYNAMIC = 0x8000 # Interface was dynamically created.
IFF_LOWER_UP = 0x10000 # driver signals L1 up
IFF_DORMANT = 0x20000 # driver signals dormant
IFF_ECHO = 0x40000 # echo sent packet
IFF_PROTO_DOWN = 0x1000000 # protocol is down on the interface
flag_to_string = {
IFF_UP : 'IFF_UP',
IFF_BROADCAST : 'IFF_BROADCAST',
IFF_DEBUG : 'IFF_DEBUG',
IFF_LOOPBACK : 'IFF_LOOPBACK',
IFF_POINTOPOINT : 'IFF_POINTOPOINT',
IFF_NOTRAILERS : 'IFF_NOTRAILERS',
IFF_RUNNING : 'IFF_RUNNING',
IFF_NOARP : 'IFF_NOARP',
IFF_PROMISC : 'IFF_PROMISC',
IFF_ALLMULTI : 'IFF_ALLMULTI',
IFF_MASTER : 'IFF_MASTER',
IFF_SLAVE : 'IFF_SLAVE',
IFF_MULTICAST : 'IFF_MULTICAST',
IFF_PORTSEL : 'IFF_PORTSEL',
IFF_AUTOMEDIA : 'IFF_AUTOMEDIA',
IFF_DYNAMIC : 'IFF_DYNAMIC',
IFF_LOWER_UP : 'IFF_LOWER_UP',
IFF_DORMANT : 'IFF_DORMANT',
IFF_ECHO : 'IFF_ECHO',
IFF_PROTO_DOWN : 'IFF_PROTO_DOWN'
}
# RFC 2863 operational status
IF_OPER_UNKNOWN = 0
IF_OPER_NOTPRESENT = 1
IF_OPER_DOWN = 2
IF_OPER_LOWERLAYERDOWN = 3
IF_OPER_TESTING = 4
IF_OPER_DORMANT = 5
IF_OPER_UP = 6
oper_to_string = {
IF_OPER_UNKNOWN : 'IF_OPER_UNKNOWN',
IF_OPER_NOTPRESENT : 'IF_OPER_NOTPRESENT',
IF_OPER_DOWN : 'IF_OPER_DOWN',
IF_OPER_LOWERLAYERDOWN : 'IF_OPER_LOWERLAYERDOWN',
IF_OPER_TESTING : 'IF_OPER_TESTING',
IF_OPER_DORMANT : 'IF_OPER_DORMANT',
IF_OPER_UP : 'IF_OPER_UP'
}
# Link types
# /usr/include/linux/if_arp.h
# ARP protocol HARDWARE identifiers
ARPHRD_NETROM = 0 # from KA9Q: NET/ROM pseudo
ARPHRD_ETHER = 1 # Ethernet 10Mbps
ARPHRD_EETHER = 2 # Experimental Ethernet
ARPHRD_AX25 = 3 # AX.25 Level 2
ARPHRD_PRONET = 4 # PROnet token ring
ARPHRD_CHAOS = 5 # Chaosnet
ARPHRD_IEEE802 = 6 # IEEE 802.2 Ethernet/TR/TB
ARPHRD_ARCNET = 7 # ARCnet
ARPHRD_APPLETLK = 8 # APPLEtalk
ARPHRD_DLCI = 15 # Frame Relay DLCI
ARPHRD_ATM = 19 # ATM
ARPHRD_METRICOM = 23 # Metricom STRIP (new IANA id)
ARPHRD_IEEE1394 = 24 # IEEE 1394 IPv4 - RFC 2734
ARPHRD_EUI64 = 27 # EUI-64
ARPHRD_INFINIBAND = 32 # InfiniBand
# Dummy types for non ARP hardware
ARPHRD_SLIP = 256
ARPHRD_CSLIP = 257
ARPHRD_SLIP6 = 258
ARPHRD_CSLIP6 = 259
ARPHRD_RSRVD = 260 # Notional KISS type
ARPHRD_ADAPT = 264
ARPHRD_ROSE = 270
ARPHRD_X25 = 271 # CCITT X.25
ARPHRD_HWX25 = 272 # Boards with X.25 in firmware
ARPHRD_CAN = 280 # Controller Area Network
ARPHRD_PPP = 512
ARPHRD_CISCO = 513 # Cisco HDLC
ARPHRD_HDLC = ARPHRD_CISCO
ARPHRD_LAPB = 516 # LAPB
ARPHRD_DDCMP = 517 # Digital's DDCMP protocol
ARPHRD_RAWHDLC = 518 # Raw HDLC
ARPHRD_TUNNEL = 768 # IPIP tunnel
ARPHRD_TUNNEL6 = 769 # IP6IP6 tunnel
ARPHRD_FRAD = 770 # Frame Relay Access Device
ARPHRD_SKIP = 771 # SKIP vif
ARPHRD_LOOPBACK = 772 # Loopback device
ARPHRD_LOCALTLK = 773 # Localtalk device
ARPHRD_FDDI = 774 # Fiber Distributed Data Interface
ARPHRD_BIF = 775 # AP1000 BIF
ARPHRD_SIT = 776 # sit0 device - IPv6-in-IPv4
ARPHRD_IPDDP = 777 # IP over DDP tunneller
ARPHRD_IPGRE = 778 # GRE over IP
ARPHRD_PIMREG = 779 # PIMSM register interface
ARPHRD_HIPPI = 780 # High Performance Parallel Interface
ARPHRD_ASH = 781 # Nexus 64Mbps Ash
ARPHRD_ECONET = 782 # Acorn Econet
ARPHRD_IRDA = 783 # Linux-IrDA
ARPHRD_FCPP = 784 # Point to point fibrechannel
ARPHRD_FCAL = 785 # Fibrechannel arbitrated loop
ARPHRD_FCPL = 786 # Fibrechannel public loop
ARPHRD_FCFABRIC = 787 # Fibrechannel fabric
# 787->799 reserved for fibrechannel media types
ARPHRD_IEEE802_TR = 800 # Magic type ident for TR
ARPHRD_IEEE80211 = 801 # IEEE 802.11
ARPHRD_IEEE80211_PRISM = 802 # IEEE 802.11 + Prism2 header
ARPHRD_IEEE80211_RADIOTAP = 803 # IEEE 802.11 + radiotap header
ARPHRD_IEEE802154 = 804
ARPHRD_PHONET = 820 # PhoNet media type
ARPHRD_PHONET_PIPE = 821 # PhoNet pipe header
ARPHRD_CAIF = 822 # CAIF media type
ARPHRD_VOID = 0xFFFF # Void type, nothing is known
ARPHRD_NONE = 0xFFFE # zero header length
link_type_to_string = {
ARPHRD_NETROM : 'ARPHRD_NETROM',
ARPHRD_ETHER : 'ARPHRD_ETHER',
ARPHRD_EETHER : 'ARPHRD_EETHER',
ARPHRD_AX25 : 'ARPHRD_AX25',
ARPHRD_PRONET : 'ARPHRD_PRONET',
ARPHRD_CHAOS : 'ARPHRD_CHAOS',
ARPHRD_IEEE802 : 'ARPHRD_IEEE802',
ARPHRD_ARCNET : 'ARPHRD_ARCNET',
ARPHRD_APPLETLK : 'ARPHRD_APPLETLK',
ARPHRD_DLCI : 'ARPHRD_DLCI',
ARPHRD_ATM : 'ARPHRD_ATM',
ARPHRD_METRICOM : 'ARPHRD_METRICOM',
ARPHRD_IEEE1394 : 'ARPHRD_IEEE1394',
ARPHRD_EUI64 : 'ARPHRD_EUI64',
ARPHRD_INFINIBAND : 'ARPHRD_INFINIBAND',
ARPHRD_SLIP : 'ARPHRD_SLIP',
ARPHRD_CSLIP : 'ARPHRD_CSLIP',
ARPHRD_SLIP6 : 'ARPHRD_SLIP6',
ARPHRD_CSLIP6 : 'ARPHRD_CSLIP6',
ARPHRD_RSRVD : 'ARPHRD_RSRVD',
ARPHRD_ADAPT : 'ARPHRD_ADAPT',
ARPHRD_ROSE : 'ARPHRD_ROSE',
ARPHRD_X25 : 'ARPHRD_X25',
ARPHRD_HWX25 : 'ARPHRD_HWX25',
ARPHRD_CAN : 'ARPHRD_CAN',
ARPHRD_PPP : 'ARPHRD_PPP',
ARPHRD_CISCO : 'ARPHRD_CISCO',
ARPHRD_HDLC : 'ARPHRD_HDLC',
ARPHRD_LAPB : 'ARPHRD_LAPB',
ARPHRD_DDCMP : 'ARPHRD_DDCMP',
ARPHRD_RAWHDLC : 'ARPHRD_RAWHDLC',
ARPHRD_TUNNEL : 'ARPHRD_TUNNEL',
ARPHRD_TUNNEL6 : 'ARPHRD_TUNNEL6',
ARPHRD_FRAD : 'ARPHRD_FRAD',
ARPHRD_SKIP : 'ARPHRD_SKIP',
ARPHRD_LOOPBACK : 'ARPHRD_LOOPBACK',
ARPHRD_LOCALTLK : 'ARPHRD_LOCALTLK',
ARPHRD_FDDI : 'ARPHRD_FDDI',
ARPHRD_BIF : 'ARPHRD_BIF',
ARPHRD_SIT : 'ARPHRD_SIT',
ARPHRD_IPDDP : 'ARPHRD_IPDDP',
ARPHRD_IPGRE : 'ARPHRD_IPGRE',
ARPHRD_PIMREG : 'ARPHRD_PIMREG',
ARPHRD_HIPPI : 'ARPHRD_HIPPI',
ARPHRD_ASH : 'ARPHRD_ASH',
ARPHRD_ECONET : 'ARPHRD_ECONET',
ARPHRD_IRDA : 'ARPHRD_IRDA',
ARPHRD_FCPP : 'ARPHRD_FCPP',
ARPHRD_FCAL : 'ARPHRD_FCAL',
ARPHRD_FCPL : 'ARPHRD_FCPL',
ARPHRD_FCFABRIC : 'ARPHRD_FCFABRIC',
ARPHRD_IEEE802_TR : 'ARPHRD_IEEE802_TR',
ARPHRD_IEEE80211 : 'ARPHRD_IEEE80211',
ARPHRD_IEEE80211_PRISM : 'ARPHRD_IEEE80211_PRISM',
ARPHRD_IEEE80211_RADIOTAP : 'ARPHRD_IEEE80211_RADIOTAP',
ARPHRD_IEEE802154 : 'ARPHRD_IEEE802154',
ARPHRD_PHONET : 'ARPHRD_PHONET',
ARPHRD_PHONET_PIPE : 'ARPHRD_PHONET_PIPE',
ARPHRD_CAIF : 'ARPHRD_CAIF',
ARPHRD_VOID : 'ARPHRD_VOID',
ARPHRD_NONE : 'ARPHRD_NONE'
}
# =========================================
# IFLA_LINKINFO attributes
# =========================================
IFLA_INFO_UNSPEC = 0
IFLA_INFO_KIND = 1
IFLA_INFO_DATA = 2
IFLA_INFO_XSTATS = 3
IFLA_INFO_SLAVE_KIND = 4
IFLA_INFO_SLAVE_DATA = 5
IFLA_INFO_MAX = 6
ifla_info_to_string = {
IFLA_INFO_UNSPEC : 'IFLA_INFO_UNSPEC',
IFLA_INFO_KIND : 'IFLA_INFO_KIND',
IFLA_INFO_DATA : 'IFLA_INFO_DATA',
IFLA_INFO_XSTATS : 'IFLA_INFO_XSTATS',
IFLA_INFO_SLAVE_KIND : 'IFLA_INFO_SLAVE_KIND',
IFLA_INFO_SLAVE_DATA : 'IFLA_INFO_SLAVE_DATA',
IFLA_INFO_MAX : 'IFLA_INFO_MAX'
}
# =========================================
# IFLA_INFO_DATA attributes for vlan
# =========================================
IFLA_VLAN_UNSPEC = 0
IFLA_VLAN_ID = 1
IFLA_VLAN_FLAGS = 2
IFLA_VLAN_EGRESS_QOS = 3
IFLA_VLAN_INGRESS_QOS = 4
IFLA_VLAN_PROTOCOL = 5
ifla_vlan_to_string = {
IFLA_VLAN_UNSPEC : 'IFLA_VLAN_UNSPEC',
IFLA_VLAN_ID : 'IFLA_VLAN_ID',
IFLA_VLAN_FLAGS : 'IFLA_VLAN_FLAGS',
IFLA_VLAN_EGRESS_QOS : 'IFLA_VLAN_EGRESS_QOS',
IFLA_VLAN_INGRESS_QOS : 'IFLA_VLAN_INGRESS_QOS',
IFLA_VLAN_PROTOCOL : 'IFLA_VLAN_PROTOCOL'
}
ifla_vlan_protocol_dict = {
'802.1Q': 0x8100,
'802.1q': 0x8100,
'802.1ad': 0x88A8,
'802.1AD': 0x88A8,
'802.1Ad': 0x88A8,
'802.1aD': 0x88A8,
0x8100: '802.1Q',
0x88A8: '802.1ad'
}
# =========================================
# IFLA_INFO_DATA attributes for macvlan
# =========================================
IFLA_MACVLAN_UNSPEC = 0
IFLA_MACVLAN_MODE = 1
ifla_macvlan_to_string = {
IFLA_MACVLAN_UNSPEC : 'IFLA_MACVLAN_UNSPEC',
IFLA_MACVLAN_MODE : 'IFLA_MACVLAN_MODE'
}
# macvlan modes
MACVLAN_MODE_PRIVATE = 1
MACVLAN_MODE_VEPA = 2
MACVLAN_MODE_BRIDGE = 3
MACVLAN_MODE_PASSTHRU = 4
macvlan_mode_to_string = {
MACVLAN_MODE_PRIVATE : 'MACVLAN_MODE_PRIVATE',
MACVLAN_MODE_VEPA : 'MACVLAN_MODE_VEPA',
MACVLAN_MODE_BRIDGE : 'MACVLAN_MODE_BRIDGE',
MACVLAN_MODE_PASSTHRU : 'MACVLAN_MODE_PASSTHRU'
}
# =========================================
# IFLA_INFO_DATA attributes for vxlan
# =========================================
IFLA_VXLAN_UNSPEC = 0
IFLA_VXLAN_ID = 1
IFLA_VXLAN_GROUP = 2
IFLA_VXLAN_LINK = 3
IFLA_VXLAN_LOCAL = 4
IFLA_VXLAN_TTL = 5
IFLA_VXLAN_TOS = 6
IFLA_VXLAN_LEARNING = 7
IFLA_VXLAN_AGEING = 8
IFLA_VXLAN_LIMIT = 9
IFLA_VXLAN_PORT_RANGE = 10
IFLA_VXLAN_PROXY = 11
IFLA_VXLAN_RSC = 12
IFLA_VXLAN_L2MISS = 13
IFLA_VXLAN_L3MISS = 14
IFLA_VXLAN_PORT = 15
IFLA_VXLAN_GROUP6 = 16
IFLA_VXLAN_LOCAL6 = 17
IFLA_VXLAN_UDP_CSUM = 18
IFLA_VXLAN_UDP_ZERO_CSUM6_TX = 19
IFLA_VXLAN_UDP_ZERO_CSUM6_RX = 20
IFLA_VXLAN_REMCSUM_TX = 21
IFLA_VXLAN_REMCSUM_RX = 22
IFLA_VXLAN_GBP = 23
IFLA_VXLAN_REMCSUM_NOPARTIAL = 24
IFLA_VXLAN_COLLECT_METADATA = 25
IFLA_VXLAN_REPLICATION_NODE = 253
IFLA_VXLAN_REPLICATION_TYPE = 254
ifla_vxlan_to_string = {
IFLA_VXLAN_UNSPEC : 'IFLA_VXLAN_UNSPEC',
IFLA_VXLAN_ID : 'IFLA_VXLAN_ID',
IFLA_VXLAN_GROUP : 'IFLA_VXLAN_GROUP',
IFLA_VXLAN_LINK : 'IFLA_VXLAN_LINK',
IFLA_VXLAN_LOCAL : 'IFLA_VXLAN_LOCAL',
IFLA_VXLAN_TTL : 'IFLA_VXLAN_TTL',
IFLA_VXLAN_TOS : 'IFLA_VXLAN_TOS',
IFLA_VXLAN_LEARNING : 'IFLA_VXLAN_LEARNING',
IFLA_VXLAN_AGEING : 'IFLA_VXLAN_AGEING',
IFLA_VXLAN_LIMIT : 'IFLA_VXLAN_LIMIT',
IFLA_VXLAN_PORT_RANGE : 'IFLA_VXLAN_PORT_RANGE',
IFLA_VXLAN_PROXY : 'IFLA_VXLAN_PROXY',
IFLA_VXLAN_RSC : 'IFLA_VXLAN_RSC',
IFLA_VXLAN_L2MISS : 'IFLA_VXLAN_L2MISS',
IFLA_VXLAN_L3MISS : 'IFLA_VXLAN_L3MISS',
IFLA_VXLAN_PORT : 'IFLA_VXLAN_PORT',
IFLA_VXLAN_GROUP6 : 'IFLA_VXLAN_GROUP6',
IFLA_VXLAN_LOCAL6 : 'IFLA_VXLAN_LOCAL6',
IFLA_VXLAN_UDP_CSUM : 'IFLA_VXLAN_UDP_CSUM',
IFLA_VXLAN_UDP_ZERO_CSUM6_TX : 'IFLA_VXLAN_UDP_ZERO_CSUM6_TX',
IFLA_VXLAN_UDP_ZERO_CSUM6_RX : 'IFLA_VXLAN_UDP_ZERO_CSUM6_RX',
IFLA_VXLAN_REMCSUM_TX : 'IFLA_VXLAN_REMCSUM_TX',
IFLA_VXLAN_REMCSUM_RX : 'IFLA_VXLAN_REMCSUM_RX',
IFLA_VXLAN_GBP : 'IFLA_VXLAN_GBP',
IFLA_VXLAN_REMCSUM_NOPARTIAL : 'IFLA_VXLAN_REMCSUM_NOPARTIAL',
IFLA_VXLAN_COLLECT_METADATA : 'IFLA_VXLAN_COLLECT_METADATA',
IFLA_VXLAN_REPLICATION_NODE : 'IFLA_VXLAN_REPLICATION_NODE',
IFLA_VXLAN_REPLICATION_TYPE : 'IFLA_VXLAN_REPLICATION_TYPE'
}
# =========================================
# IFLA_INFO_DATA attributes for bonds
# =========================================
IFLA_BOND_UNSPEC = 0
IFLA_BOND_MODE = 1
IFLA_BOND_ACTIVE_SLAVE = 2
IFLA_BOND_MIIMON = 3
IFLA_BOND_UPDELAY = 4
IFLA_BOND_DOWNDELAY = 5
IFLA_BOND_USE_CARRIER = 6
IFLA_BOND_ARP_INTERVAL = 7
IFLA_BOND_ARP_IP_TARGET = 8
IFLA_BOND_ARP_VALIDATE = 9
IFLA_BOND_ARP_ALL_TARGETS = 10
IFLA_BOND_PRIMARY = 11
IFLA_BOND_PRIMARY_RESELECT = 12
IFLA_BOND_FAIL_OVER_MAC = 13
IFLA_BOND_XMIT_HASH_POLICY = 14
IFLA_BOND_RESEND_IGMP = 15
IFLA_BOND_NUM_PEER_NOTIF = 16
IFLA_BOND_ALL_SLAVES_ACTIVE = 17
IFLA_BOND_MIN_LINKS = 18
IFLA_BOND_LP_INTERVAL = 19
IFLA_BOND_PACKETS_PER_SLAVE = 20
IFLA_BOND_AD_LACP_RATE = 21
IFLA_BOND_AD_SELECT = 22
IFLA_BOND_AD_INFO = 23
IFLA_BOND_AD_ACTOR_SYS_PRIO = 24
IFLA_BOND_AD_USER_PORT_KEY = 25
IFLA_BOND_AD_ACTOR_SYSTEM = 26
IFLA_BOND_AD_LACP_BYPASS = 100
ifla_bond_to_string = {
IFLA_BOND_UNSPEC : 'IFLA_BOND_UNSPEC',
IFLA_BOND_MODE : 'IFLA_BOND_MODE',
IFLA_BOND_ACTIVE_SLAVE : 'IFLA_BOND_ACTIVE_SLAVE',
IFLA_BOND_MIIMON : 'IFLA_BOND_MIIMON',
IFLA_BOND_UPDELAY : 'IFLA_BOND_UPDELAY',
IFLA_BOND_DOWNDELAY : 'IFLA_BOND_DOWNDELAY',
IFLA_BOND_USE_CARRIER : 'IFLA_BOND_USE_CARRIER',
IFLA_BOND_ARP_INTERVAL : 'IFLA_BOND_ARP_INTERVAL',
IFLA_BOND_ARP_IP_TARGET : 'IFLA_BOND_ARP_IP_TARGET',
IFLA_BOND_ARP_VALIDATE : 'IFLA_BOND_ARP_VALIDATE',
IFLA_BOND_ARP_ALL_TARGETS : 'IFLA_BOND_ARP_ALL_TARGETS',
IFLA_BOND_PRIMARY : 'IFLA_BOND_PRIMARY',
IFLA_BOND_PRIMARY_RESELECT : 'IFLA_BOND_PRIMARY_RESELECT',
IFLA_BOND_FAIL_OVER_MAC : 'IFLA_BOND_FAIL_OVER_MAC',
IFLA_BOND_XMIT_HASH_POLICY : 'IFLA_BOND_XMIT_HASH_POLICY',
IFLA_BOND_RESEND_IGMP : 'IFLA_BOND_RESEND_IGMP',
IFLA_BOND_NUM_PEER_NOTIF : 'IFLA_BOND_NUM_PEER_NOTIF',
IFLA_BOND_ALL_SLAVES_ACTIVE : 'IFLA_BOND_ALL_SLAVES_ACTIVE',
IFLA_BOND_MIN_LINKS : 'IFLA_BOND_MIN_LINKS',
IFLA_BOND_LP_INTERVAL : 'IFLA_BOND_LP_INTERVAL',
IFLA_BOND_PACKETS_PER_SLAVE : 'IFLA_BOND_PACKETS_PER_SLAVE',
IFLA_BOND_AD_LACP_RATE : 'IFLA_BOND_AD_LACP_RATE',
IFLA_BOND_AD_SELECT : 'IFLA_BOND_AD_SELECT',
IFLA_BOND_AD_INFO : 'IFLA_BOND_AD_INFO',
IFLA_BOND_AD_ACTOR_SYS_PRIO : 'IFLA_BOND_AD_ACTOR_SYS_PRIO',
IFLA_BOND_AD_USER_PORT_KEY : 'IFLA_BOND_AD_USER_PORT_KEY',
IFLA_BOND_AD_ACTOR_SYSTEM : 'IFLA_BOND_AD_ACTOR_SYSTEM',
IFLA_BOND_AD_LACP_BYPASS : 'IFLA_BOND_AD_LACP_BYPASS'
}
IFLA_BOND_AD_INFO_UNSPEC = 0
IFLA_BOND_AD_INFO_AGGREGATOR = 1
IFLA_BOND_AD_INFO_NUM_PORTS = 2
IFLA_BOND_AD_INFO_ACTOR_KEY = 3
IFLA_BOND_AD_INFO_PARTNER_KEY = 4
IFLA_BOND_AD_INFO_PARTNER_MAC = 5
ifla_bond_ad_to_string = {
IFLA_BOND_AD_INFO_UNSPEC : 'IFLA_BOND_AD_INFO_UNSPEC',
IFLA_BOND_AD_INFO_AGGREGATOR : 'IFLA_BOND_AD_INFO_AGGREGATOR',
IFLA_BOND_AD_INFO_NUM_PORTS : 'IFLA_BOND_AD_INFO_NUM_PORTS',
IFLA_BOND_AD_INFO_ACTOR_KEY : 'IFLA_BOND_AD_INFO_ACTOR_KEY',
IFLA_BOND_AD_INFO_PARTNER_KEY : 'IFLA_BOND_AD_INFO_PARTNER_KEY',
IFLA_BOND_AD_INFO_PARTNER_MAC : 'IFLA_BOND_AD_INFO_PARTNER_MAC'
}
ifla_bond_mode_tbl = {
'balance-rr': 0,
'active-backup': 1,
'balance-xor': 2,
'broadcast': 3,
'802.3ad': 4,
'balance-tlb': 5,
'balance-alb': 6,
'0': 0,
'1': 1,
'2': 2,
'3': 3,
'4': 4,
'5': 5,
'6': 6,
0: 0,
1: 1,
2: 2,
3: 3,
4: 4,
5: 5,
6: 6
}
ifla_bond_mode_pretty_tbl = {
0: 'balance-rr',
1: 'active-backup',
2: 'balance-xor',
3: 'broadcast',
4: '802.3ad',
5: 'balance-tlb',
6: 'balance-alb'
}
ifla_bond_xmit_hash_policy_tbl = {
'layer2': 0,
'layer3+4': 1,
'layer2+3': 2,
'encap2+3': 3,
'encap3+4': 4,
'0': 0,
'1': 1,
'2': 2,
'3': 3,
'4': 4,
0: 0,
1: 1,
2: 2,
3: 3,
4: 4
}
ifla_bond_xmit_hash_policy_pretty_tbl = {
0: 'layer2',
1: 'layer3+4',
2: 'layer2+3',
3: 'encap2+3',
4: 'encap3+4',
}
# =========================================
# IFLA_INFO_SLAVE_DATA attributes for bonds
# =========================================
IFLA_BOND_SLAVE_UNSPEC = 0
IFLA_BOND_SLAVE_STATE = 1
IFLA_BOND_SLAVE_MII_STATUS = 2
IFLA_BOND_SLAVE_LINK_FAILURE_COUNT = 3
IFLA_BOND_SLAVE_PERM_HWADDR = 4
IFLA_BOND_SLAVE_QUEUE_ID = 5
IFLA_BOND_SLAVE_AD_AGGREGATOR_ID = 6
IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE = 7
IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE = 8
IFLA_BOND_SLAVE_CL_START = 50
IFLA_BOND_SLAVE_AD_RX_BYPASS = IFLA_BOND_SLAVE_CL_START
ifla_bond_slave_to_string = {
IFLA_BOND_SLAVE_UNSPEC : 'IFLA_BOND_SLAVE_UNSPEC',
IFLA_BOND_SLAVE_STATE : 'IFLA_BOND_SLAVE_STATE',
IFLA_BOND_SLAVE_MII_STATUS : 'IFLA_BOND_SLAVE_MII_STATUS',
IFLA_BOND_SLAVE_LINK_FAILURE_COUNT : 'IFLA_BOND_SLAVE_LINK_FAILURE_COUNT',
IFLA_BOND_SLAVE_PERM_HWADDR : 'IFLA_BOND_SLAVE_PERM_HWADDR',
IFLA_BOND_SLAVE_QUEUE_ID : 'IFLA_BOND_SLAVE_QUEUE_ID',
IFLA_BOND_SLAVE_AD_AGGREGATOR_ID : 'IFLA_BOND_SLAVE_AD_AGGREGATOR_ID',
IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE : 'IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE',
IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE : 'IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE',
IFLA_BOND_SLAVE_CL_START : 'IFLA_BOND_SLAVE_CL_START',
IFLA_BOND_SLAVE_AD_RX_BYPASS : 'IFLA_BOND_SLAVE_AD_RX_BYPASS'
}
# =========================================
# IFLA_PROTINFO attributes for bridge ports
# =========================================
IFLA_BRPORT_UNSPEC = 0
IFLA_BRPORT_STATE = 1
IFLA_BRPORT_PRIORITY = 2
IFLA_BRPORT_COST = 3
IFLA_BRPORT_MODE = 4
IFLA_BRPORT_GUARD = 5
IFLA_BRPORT_PROTECT = 6
IFLA_BRPORT_FAST_LEAVE = 7
IFLA_BRPORT_LEARNING = 8
IFLA_BRPORT_UNICAST_FLOOD = 9
IFLA_BRPORT_PROXYARP = 10
IFLA_BRPORT_LEARNING_SYNC = 11
IFLA_BRPORT_PROXYARP_WIFI = 12
IFLA_BRPORT_ROOT_ID = 13
IFLA_BRPORT_BRIDGE_ID = 14
IFLA_BRPORT_DESIGNATED_PORT = 15
IFLA_BRPORT_DESIGNATED_COST = 16
IFLA_BRPORT_ID = 17
IFLA_BRPORT_NO = 18
IFLA_BRPORT_TOPOLOGY_CHANGE_ACK = 19
IFLA_BRPORT_CONFIG_PENDING = 20
IFLA_BRPORT_MESSAGE_AGE_TIMER = 21
IFLA_BRPORT_FORWARD_DELAY_TIMER = 22
IFLA_BRPORT_HOLD_TIMER = 23
IFLA_BRPORT_FLUSH = 24
IFLA_BRPORT_MULTICAST_ROUTER = 25
IFLA_BRPORT_PAD = 26
IFLA_BRPORT_MCAST_FLOOD = 27
IFLA_BRPORT_MCAST_TO_UCAST = 28
IFLA_BRPORT_VLAN_TUNNEL = 29
IFLA_BRPORT_BCAST_FLOOD = 30
IFLA_BRPORT_GROUP_FWD_MASK = 31
IFLA_BRPORT_ARP_SUPPRESS = 32
IFLA_BRPORT_PEER_LINK = 150
IFLA_BRPORT_DUAL_LINK = 151
IFLA_BRPORT_GROUP_FWD_MASKHI = 153
IFLA_BRPORT_DOWN_PEERLINK_REDIRECT = 154
ifla_brport_to_string = {
IFLA_BRPORT_UNSPEC : 'IFLA_BRPORT_UNSPEC',
IFLA_BRPORT_STATE : 'IFLA_BRPORT_STATE',
IFLA_BRPORT_PRIORITY : 'IFLA_BRPORT_PRIORITY',
IFLA_BRPORT_COST : 'IFLA_BRPORT_COST',
IFLA_BRPORT_MODE : 'IFLA_BRPORT_MODE',
IFLA_BRPORT_GUARD : 'IFLA_BRPORT_GUARD',
IFLA_BRPORT_PROTECT : 'IFLA_BRPORT_PROTECT',
IFLA_BRPORT_FAST_LEAVE : 'IFLA_BRPORT_FAST_LEAVE',
IFLA_BRPORT_LEARNING : 'IFLA_BRPORT_LEARNING',
IFLA_BRPORT_UNICAST_FLOOD : 'IFLA_BRPORT_UNICAST_FLOOD',
IFLA_BRPORT_PROXYARP : 'IFLA_BRPORT_PROXYARP',
IFLA_BRPORT_LEARNING_SYNC : 'IFLA_BRPORT_LEARNING_SYNC',
IFLA_BRPORT_PROXYARP_WIFI : 'IFLA_BRPORT_PROXYARP_WIFI',
IFLA_BRPORT_ROOT_ID : 'IFLA_BRPORT_ROOT_ID',
IFLA_BRPORT_BRIDGE_ID : 'IFLA_BRPORT_BRIDGE_ID',
IFLA_BRPORT_DESIGNATED_PORT : 'IFLA_BRPORT_DESIGNATED_PORT',
IFLA_BRPORT_DESIGNATED_COST : 'IFLA_BRPORT_DESIGNATED_COST',
IFLA_BRPORT_ID : 'IFLA_BRPORT_ID',
IFLA_BRPORT_NO : 'IFLA_BRPORT_NO',
IFLA_BRPORT_TOPOLOGY_CHANGE_ACK : 'IFLA_BRPORT_TOPOLOGY_CHANGE_ACK',
IFLA_BRPORT_CONFIG_PENDING : 'IFLA_BRPORT_CONFIG_PENDING',
IFLA_BRPORT_MESSAGE_AGE_TIMER : 'IFLA_BRPORT_MESSAGE_AGE_TIMER',
IFLA_BRPORT_FORWARD_DELAY_TIMER : 'IFLA_BRPORT_FORWARD_DELAY_TIMER',
IFLA_BRPORT_HOLD_TIMER : 'IFLA_BRPORT_HOLD_TIMER',
IFLA_BRPORT_FLUSH : 'IFLA_BRPORT_FLUSH',
IFLA_BRPORT_MULTICAST_ROUTER : 'IFLA_BRPORT_MULTICAST_ROUTER',
IFLA_BRPORT_PAD : 'IFLA_BRPORT_PAD',
IFLA_BRPORT_MCAST_FLOOD : 'IFLA_BRPORT_MCAST_FLOOD',
IFLA_BRPORT_MCAST_TO_UCAST : 'IFLA_BRPORT_MCAST_TO_UCAST',
IFLA_BRPORT_VLAN_TUNNEL : 'IFLA_BRPORT_VLAN_TUNNEL',
IFLA_BRPORT_BCAST_FLOOD : 'IFLA_BRPORT_BCAST_FLOOD',
IFLA_BRPORT_GROUP_FWD_MASK : 'IFLA_BRPORT_GROUP_FWD_MASK',
IFLA_BRPORT_PEER_LINK : 'IFLA_BRPORT_PEER_LINK',
IFLA_BRPORT_DUAL_LINK : 'IFLA_BRPORT_DUAL_LINK',
IFLA_BRPORT_ARP_SUPPRESS : 'IFLA_BRPORT_ARP_SUPPRESS',
IFLA_BRPORT_GROUP_FWD_MASKHI : 'IFLA_BRPORT_GROUP_FWD_MASKHI',
IFLA_BRPORT_DOWN_PEERLINK_REDIRECT : 'IFLA_BRPORT_DOWN_PEERLINK_REDIRECT'
}
# Subtype attributes for IFLA_AF_SPEC
IFLA_INET6_UNSPEC = 0
IFLA_INET6_FLAGS = 1 # link flags
IFLA_INET6_CONF = 2 # sysctl parameters
IFLA_INET6_STATS = 3 # statistics
IFLA_INET6_MCAST = 4 # MC things. What of them?
IFLA_INET6_CACHEINFO = 5 # time values and max reasm size
IFLA_INET6_ICMP6STATS = 6 # statistics (icmpv6)
IFLA_INET6_TOKEN = 7 # device token
IFLA_INET6_ADDR_GEN_MODE = 8 # implicit address generator mode
__IFLA_INET6_MAX = 9
ifla_inet6_af_spec_to_string = {
IFLA_INET6_UNSPEC : 'IFLA_INET6_UNSPEC',
IFLA_INET6_FLAGS : 'IFLA_INET6_FLAGS',
IFLA_INET6_CONF : 'IFLA_INET6_CONF',
IFLA_INET6_STATS : 'IFLA_INET6_STATS',
IFLA_INET6_MCAST : 'IFLA_INET6_MCAST',
IFLA_INET6_CACHEINFO : 'IFLA_INET6_CACHEINFO',
IFLA_INET6_ICMP6STATS : 'IFLA_INET6_ICMP6STATS',
IFLA_INET6_TOKEN : 'IFLA_INET6_TOKEN',
IFLA_INET6_ADDR_GEN_MODE : 'IFLA_INET6_ADDR_GEN_MODE',
}
# IFLA_INET6_ADDR_GEN_MODE values
IN6_ADDR_GEN_MODE_EUI64 = 0
IN6_ADDR_GEN_MODE_NONE = 1
IN6_ADDR_GEN_MODE_STABLE_PRIVACY = 2
IN6_ADDR_GEN_MODE_RANDOM = 3
ifla_inet6_addr_gen_mode_dict = {
IN6_ADDR_GEN_MODE_EUI64: "eui64",
IN6_ADDR_GEN_MODE_NONE: "none",
IN6_ADDR_GEN_MODE_STABLE_PRIVACY: "stable_secret",
IN6_ADDR_GEN_MODE_RANDOM: "random"
}
# Subtype attrbutes AF_INET
IFLA_INET_UNSPEC = 0
IFLA_INET_CONF = 1
__IFLA_INET_MAX = 2
ifla_inet_af_spec_to_string = {
IFLA_INET_UNSPEC : 'IFLA_INET_UNSPEC',
IFLA_INET_CONF : 'IFLA_INET_CONF',
}
# BRIDGE IFLA_AF_SPEC attributes
IFLA_BRIDGE_FLAGS = 0
IFLA_BRIDGE_MODE = 1
IFLA_BRIDGE_VLAN_INFO = 2
ifla_bridge_af_spec_to_string = {
IFLA_BRIDGE_FLAGS : 'IFLA_BRIDGE_FLAGS',
IFLA_BRIDGE_MODE : 'IFLA_BRIDGE_MODE',
IFLA_BRIDGE_VLAN_INFO : 'IFLA_BRIDGE_VLAN_INFO'
}
# BRIDGE_VLAN_INFO flags
BRIDGE_VLAN_INFO_MASTER = 1 << 0 # Operate on Bridge device as well
BRIDGE_VLAN_INFO_PVID = 1 << 1 # VLAN is PVID, ingress untagged
BRIDGE_VLAN_INFO_UNTAGGED = 1 << 2 # VLAN egresses untagged
BRIDGE_VLAN_INFO_RANGE_BEGIN = 1 << 3 # VLAN is start of vlan range
BRIDGE_VLAN_INFO_RANGE_END = 1 << 4 # VLAN is end of vlan range
BRIDGE_VLAN_INFO_BRENTRY = 1 << 5 # Global bridge VLAN entry
bridge_vlan_to_string = {
BRIDGE_VLAN_INFO_MASTER : 'BRIDGE_VLAN_INFO_MASTER',
BRIDGE_VLAN_INFO_PVID : 'BRIDGE_VLAN_INFO_PVID',
BRIDGE_VLAN_INFO_UNTAGGED : 'BRIDGE_VLAN_INFO_UNTAGGED',
BRIDGE_VLAN_INFO_RANGE_BEGIN : 'BRIDGE_VLAN_INFO_RANGE_BEGIN',
BRIDGE_VLAN_INFO_RANGE_END : 'BRIDGE_VLAN_INFO_RANGE_END',
BRIDGE_VLAN_INFO_BRENTRY : 'BRIDGE_VLAN_INFO_BRENTRY'
}
# Bridge flags
BRIDGE_FLAGS_MASTER = 1
BRIDGE_FLAGS_SELF = 2
bridge_flags_to_string = {
BRIDGE_FLAGS_MASTER : 'BRIDGE_FLAGS_MASTER',
BRIDGE_FLAGS_SELF : 'BRIDGE_FLAGS_SELF'
}
# filters for IFLA_EXT_MASK
RTEXT_FILTER_VF = 1 << 0
RTEXT_FILTER_BRVLAN = 1 << 1
RTEXT_FILTER_BRVLAN_COMPRESSED = 1 << 2
RTEXT_FILTER_SKIP_STATS = 1 << 3
rtext_to_string = {
RTEXT_FILTER_VF : 'RTEXT_FILTER_VF',
RTEXT_FILTER_BRVLAN : 'RTEXT_FILTER_BRVLAN',
RTEXT_FILTER_BRVLAN_COMPRESSED : 'RTEXT_FILTER_BRVLAN_COMPRESSED',
RTEXT_FILTER_SKIP_STATS : 'RTEXT_FILTER_SKIP_STATS'
}
IFLA_BR_UNSPEC = 0
IFLA_BR_FORWARD_DELAY = 1
IFLA_BR_HELLO_TIME = 2
IFLA_BR_MAX_AGE = 3
IFLA_BR_AGEING_TIME = 4
IFLA_BR_STP_STATE = 5
IFLA_BR_PRIORITY = 6
IFLA_BR_VLAN_FILTERING = 7
IFLA_BR_VLAN_PROTOCOL = 8
IFLA_BR_GROUP_FWD_MASK = 9
IFLA_BR_ROOT_ID = 10
IFLA_BR_BRIDGE_ID = 11
IFLA_BR_ROOT_PORT = 12
IFLA_BR_ROOT_PATH_COST = 13
IFLA_BR_TOPOLOGY_CHANGE = 14
IFLA_BR_TOPOLOGY_CHANGE_DETECTED = 15
IFLA_BR_HELLO_TIMER = 16
IFLA_BR_TCN_TIMER = 17
IFLA_BR_TOPOLOGY_CHANGE_TIMER = 18
IFLA_BR_GC_TIMER = 19
IFLA_BR_GROUP_ADDR = 20
IFLA_BR_FDB_FLUSH = 21
IFLA_BR_MCAST_ROUTER = 22
IFLA_BR_MCAST_SNOOPING = 23
IFLA_BR_MCAST_QUERY_USE_IFADDR = 24
IFLA_BR_MCAST_QUERIER = 25
IFLA_BR_MCAST_HASH_ELASTICITY = 26
IFLA_BR_MCAST_HASH_MAX = 27
IFLA_BR_MCAST_LAST_MEMBER_CNT = 28
IFLA_BR_MCAST_STARTUP_QUERY_CNT = 29
IFLA_BR_MCAST_LAST_MEMBER_INTVL = 30
IFLA_BR_MCAST_MEMBERSHIP_INTVL = 31
IFLA_BR_MCAST_QUERIER_INTVL = 32
IFLA_BR_MCAST_QUERY_INTVL = 33
IFLA_BR_MCAST_QUERY_RESPONSE_INTVL = 34
IFLA_BR_MCAST_STARTUP_QUERY_INTVL = 35
IFLA_BR_NF_CALL_IPTABLES = 36
IFLA_BR_NF_CALL_IP6TABLES = 37
IFLA_BR_NF_CALL_ARPTABLES = 38
IFLA_BR_VLAN_DEFAULT_PVID = 39
IFLA_BR_PAD = 40
IFLA_BR_VLAN_STATS_ENABLED = 41
IFLA_BR_MCAST_STATS_ENABLED = 42
IFLA_BR_MCAST_IGMP_VERSION = 43
IFLA_BR_MCAST_MLD_VERSION = 44
ifla_br_to_string = {
IFLA_BR_UNSPEC : 'IFLA_BR_UNSPEC',
IFLA_BR_FORWARD_DELAY : 'IFLA_BR_FORWARD_DELAY',
IFLA_BR_HELLO_TIME : 'IFLA_BR_HELLO_TIME',
IFLA_BR_MAX_AGE : 'IFLA_BR_MAX_AGE',
IFLA_BR_AGEING_TIME : 'IFLA_BR_AGEING_TIME',
IFLA_BR_STP_STATE : 'IFLA_BR_STP_STATE',
IFLA_BR_PRIORITY : 'IFLA_BR_PRIORITY',
IFLA_BR_VLAN_FILTERING : 'IFLA_BR_VLAN_FILTERING',
IFLA_BR_VLAN_PROTOCOL : 'IFLA_BR_VLAN_PROTOCOL',
IFLA_BR_GROUP_FWD_MASK : 'IFLA_BR_GROUP_FWD_MASK',
IFLA_BR_ROOT_ID : 'IFLA_BR_ROOT_ID',
IFLA_BR_BRIDGE_ID : 'IFLA_BR_BRIDGE_ID',
IFLA_BR_ROOT_PORT : 'IFLA_BR_ROOT_PORT',
IFLA_BR_ROOT_PATH_COST : 'IFLA_BR_ROOT_PATH_COST',
IFLA_BR_TOPOLOGY_CHANGE : 'IFLA_BR_TOPOLOGY_CHANGE',
IFLA_BR_TOPOLOGY_CHANGE_DETECTED : 'IFLA_BR_TOPOLOGY_CHANGE_DETECTED',
IFLA_BR_HELLO_TIMER : 'IFLA_BR_HELLO_TIMER',
IFLA_BR_TCN_TIMER : 'IFLA_BR_TCN_TIMER',
IFLA_BR_TOPOLOGY_CHANGE_TIMER : 'IFLA_BR_TOPOLOGY_CHANGE_TIMER',
IFLA_BR_GC_TIMER : 'IFLA_BR_GC_TIMER',
IFLA_BR_GROUP_ADDR : 'IFLA_BR_GROUP_ADDR',
IFLA_BR_FDB_FLUSH : 'IFLA_BR_FDB_FLUSH',
IFLA_BR_MCAST_ROUTER : 'IFLA_BR_MCAST_ROUTER',
IFLA_BR_MCAST_SNOOPING : 'IFLA_BR_MCAST_SNOOPING',
IFLA_BR_MCAST_QUERY_USE_IFADDR : 'IFLA_BR_MCAST_QUERY_USE_IFADDR',
IFLA_BR_MCAST_QUERIER : 'IFLA_BR_MCAST_QUERIER',
IFLA_BR_MCAST_HASH_ELASTICITY : 'IFLA_BR_MCAST_HASH_ELASTICITY',
IFLA_BR_MCAST_HASH_MAX : 'IFLA_BR_MCAST_HASH_MAX',
IFLA_BR_MCAST_LAST_MEMBER_CNT : 'IFLA_BR_MCAST_LAST_MEMBER_CNT',
IFLA_BR_MCAST_STARTUP_QUERY_CNT : 'IFLA_BR_MCAST_STARTUP_QUERY_CNT',
IFLA_BR_MCAST_LAST_MEMBER_INTVL : 'IFLA_BR_MCAST_LAST_MEMBER_INTVL',
IFLA_BR_MCAST_MEMBERSHIP_INTVL : 'IFLA_BR_MCAST_MEMBERSHIP_INTVL',
IFLA_BR_MCAST_QUERIER_INTVL : 'IFLA_BR_MCAST_QUERIER_INTVL',
IFLA_BR_MCAST_QUERY_INTVL : 'IFLA_BR_MCAST_QUERY_INTVL',
IFLA_BR_MCAST_QUERY_RESPONSE_INTVL : 'IFLA_BR_MCAST_QUERY_RESPONSE_INTVL',
IFLA_BR_MCAST_STARTUP_QUERY_INTVL : 'IFLA_BR_MCAST_STARTUP_QUERY_INTVL',
IFLA_BR_NF_CALL_IPTABLES : 'IFLA_BR_NF_CALL_IPTABLES',
IFLA_BR_NF_CALL_IP6TABLES : 'IFLA_BR_NF_CALL_IP6TABLES',
IFLA_BR_NF_CALL_ARPTABLES : 'IFLA_BR_NF_CALL_ARPTABLES',
IFLA_BR_VLAN_DEFAULT_PVID : 'IFLA_BR_VLAN_DEFAULT_PVID',
IFLA_BR_PAD : 'IFLA_BR_PAD',
IFLA_BR_VLAN_STATS_ENABLED : 'IFLA_BR_VLAN_STATS_ENABLED',
IFLA_BR_MCAST_STATS_ENABLED : 'IFLA_BR_MCAST_STATS_ENABLED',
IFLA_BR_MCAST_IGMP_VERSION : 'IFLA_BR_MCAST_IGMP_VERSION',
IFLA_BR_MCAST_MLD_VERSION : 'IFLA_BR_MCAST_MLD_VERSION'
}
# =========================================
# IFLA_INFO_DATA attributes for vrfs
# =========================================
IFLA_VRF_UNSPEC = 0
IFLA_VRF_TABLE = 1
ifla_vrf_to_string = {
IFLA_VRF_UNSPEC : 'IFLA_VRF_UNSPEC',
IFLA_VRF_TABLE : 'IFLA_VRF_TABLE'
}
# ================================================================
# IFLA_INFO_DATA attributes for (ip6)gre, (ip6)gretap, (ip6)erspan
# ================================================================
IFLA_GRE_UNSPEC = 0
IFLA_GRE_LINK = 1
IFLA_GRE_IFLAGS = 2
IFLA_GRE_OFLAGS = 3
IFLA_GRE_IKEY = 4
IFLA_GRE_OKEY = 5
IFLA_GRE_LOCAL = 6
IFLA_GRE_REMOTE = 7
IFLA_GRE_TTL = 8
IFLA_GRE_TOS = 9
IFLA_GRE_PMTUDISC = 10
IFLA_GRE_ENCAP_LIMIT = 11
IFLA_GRE_FLOWINFO = 12
IFLA_GRE_FLAGS = 13
IFLA_GRE_ENCAP_TYPE = 14
IFLA_GRE_ENCAP_FLAGS = 15
IFLA_GRE_ENCAP_SPORT = 16
IFLA_GRE_ENCAP_DPORT = 17
IFLA_GRE_COLLECT_METADATA = 18
IFLA_GRE_IGNORE_DF = 19
IFLA_GRE_FWMARK = 20
IFLA_GRE_ERSPAN_INDEX = 21
IFLA_GRE_ERSPAN_VER = 22
IFLA_GRE_ERSPAN_DIR = 23
IFLA_GRE_ERSPAN_HWID = 24
ifla_gre_to_string = {
IFLA_GRE_UNSPEC : "IFLA_GRE_UNSPEC",
IFLA_GRE_LINK : "IFLA_GRE_LINK",
IFLA_GRE_IFLAGS : "IFLA_GRE_IFLAGS",
IFLA_GRE_OFLAGS : "IFLA_GRE_OFLAGS",
IFLA_GRE_IKEY : "IFLA_GRE_IKEY",
IFLA_GRE_OKEY : "IFLA_GRE_OKEY",
IFLA_GRE_LOCAL : "IFLA_GRE_LOCAL",
IFLA_GRE_REMOTE : "IFLA_GRE_REMOTE",
IFLA_GRE_TTL : "IFLA_GRE_TTL",
IFLA_GRE_TOS : "IFLA_GRE_TOS",
IFLA_GRE_PMTUDISC : "IFLA_GRE_PMTUDISC",
IFLA_GRE_ENCAP_LIMIT : "IFLA_GRE_ENCAP_LIMIT",
IFLA_GRE_FLOWINFO : "IFLA_GRE_FLOWINFO",
IFLA_GRE_FLAGS : "IFLA_GRE_FLAGS",
IFLA_GRE_ENCAP_TYPE : "IFLA_GRE_ENCAP_TYPE",
IFLA_GRE_ENCAP_FLAGS : "IFLA_GRE_ENCAP_FLAGS",
IFLA_GRE_ENCAP_SPORT : "IFLA_GRE_ENCAP_SPORT",
IFLA_GRE_ENCAP_DPORT : "IFLA_GRE_ENCAP_DPORT",
IFLA_GRE_COLLECT_METADATA : "IFLA_GRE_COLLECT_METADATA",
IFLA_GRE_IGNORE_DF : "IFLA_GRE_IGNORE_DF",
IFLA_GRE_FWMARK : "IFLA_GRE_FWMARK",
IFLA_GRE_ERSPAN_INDEX : "IFLA_GRE_ERSPAN_INDEX",
IFLA_GRE_ERSPAN_VER : "IFLA_GRE_ERSPAN_VER",
IFLA_GRE_ERSPAN_DIR : "IFLA_GRE_ERSPAN_DIR",
IFLA_GRE_ERSPAN_HWID : "IFLA_GRE_ERSPAN_HWID",
}
# ===============================================
# IFLA_INFO_DATA attributes for ipip, sit, ip6tnl
# ===============================================
IFLA_IPTUN_UNSPEC = 0
IFLA_IPTUN_LINK = 1
IFLA_IPTUN_LOCAL = 2
IFLA_IPTUN_REMOTE = 3
IFLA_IPTUN_TTL = 4
IFLA_IPTUN_TOS = 5
IFLA_IPTUN_ENCAP_LIMIT = 6
IFLA_IPTUN_FLOWINFO = 7
IFLA_IPTUN_FLAGS = 8
IFLA_IPTUN_PROTO = 9
IFLA_IPTUN_PMTUDISC = 10
IFLA_IPTUN_6RD_PREFIX = 11
IFLA_IPTUN_6RD_RELAY_PREFIX = 12
IFLA_IPTUN_6RD_PREFIXLEN = 13
IFLA_IPTUN_6RD_RELAY_PREFIXLEN = 14
IFLA_IPTUN_ENCAP_TYPE = 15
IFLA_IPTUN_ENCAP_FLAGS = 16
IFLA_IPTUN_ENCAP_SPORT = 17
IFLA_IPTUN_ENCAP_DPORT = 18
IFLA_IPTUN_COLLECT_METADATA = 19
IFLA_IPTUN_FWMARK = 20
ifla_iptun_to_string = {
IFLA_IPTUN_UNSPEC : "IFLA_IPTUN_UNSPEC",
IFLA_IPTUN_LINK : "IFLA_IPTUN_LINK",
IFLA_IPTUN_LOCAL : "IFLA_IPTUN_LOCAL",
IFLA_IPTUN_REMOTE : "IFLA_IPTUN_REMOTE",
IFLA_IPTUN_TTL : "IFLA_IPTUN_TTL",
IFLA_IPTUN_TOS : "IFLA_IPTUN_TOS",
IFLA_IPTUN_ENCAP_LIMIT : "IFLA_IPTUN_ENCAP_LIMIT",
IFLA_IPTUN_FLOWINFO : "IFLA_IPTUN_FLOWINFO",
IFLA_IPTUN_FLAGS : "IFLA_IPTUN_FLAGS",
IFLA_IPTUN_PROTO : "IFLA_IPTUN_PROTO",
IFLA_IPTUN_PMTUDISC : "IFLA_IPTUN_PMTUDISC",
IFLA_IPTUN_6RD_PREFIX : "IFLA_IPTUN_6RD_PREFIX",
IFLA_IPTUN_6RD_RELAY_PREFIX : "IFLA_IPTUN_6RD_RELAY_PREFIX",
IFLA_IPTUN_6RD_PREFIXLEN : "IFLA_IPTUN_6RD_PREFIXLEN",
IFLA_IPTUN_6RD_RELAY_PREFIXLEN : "IFLA_IPTUN_6RD_RELAY_PREFIXLEN",
IFLA_IPTUN_ENCAP_TYPE : "IFLA_IPTUN_ENCAP_TYPE",
IFLA_IPTUN_ENCAP_FLAGS : "IFLA_IPTUN_ENCAP_FLAGS",
IFLA_IPTUN_ENCAP_SPORT : "IFLA_IPTUN_ENCAP_SPORT",
IFLA_IPTUN_ENCAP_DPORT : "IFLA_IPTUN_ENCAP_DPORT",
IFLA_IPTUN_COLLECT_METADATA : "IFLA_IPTUN_COLLECT_METADATA",
IFLA_IPTUN_FWMARK : "IFLA_IPTUN_FWMARK",
}
# =========================================
# IFLA_INFO_DATA attributes for vti, vti6
# =========================================
IFLA_VTI_UNSPEC = 0
IFLA_VTI_LINK = 1
IFLA_VTI_IKEY = 2
IFLA_VTI_OKEY = 3
IFLA_VTI_LOCAL = 4
IFLA_VTI_REMOTE = 5
IFLA_VTI_FWMARK = 6
ifla_vti_to_string = {
IFLA_VTI_UNSPEC : "IFLA_VTI_UNSPEC",
IFLA_VTI_LINK : "IFLA_VTI_LINK",
IFLA_VTI_IKEY : "IFLA_VTI_IKEY",
IFLA_VTI_OKEY : "IFLA_VTI_OKEY",
IFLA_VTI_LOCAL : "IFLA_VTI_LOCAL",
IFLA_VTI_REMOTE : "IFLA_VTI_REMOTE",
IFLA_VTI_FWMARK : "IFLA_VTI_FWMARK",
}
def __init__(self, msgtype, debug=False, logger=None, use_color=True):
NetlinkPacket.__init__(self, msgtype, debug, logger, use_color)
self.PACK = 'BxHiII'
self.LEN = calcsize(self.PACK)
def get_link_type_string(self, index):
return self.get_string(self.link_type_to_string, index)
def get_ifla_inet6_af_spec_to_string(self, index):
return self.get_string(self.ifla_inet6_af_spec_to_string, index)
def get_ifla_inet_af_spec_to_string(self, index):
return self.get_string(self.ifla_inet_af_spec_to_string, index)
def get_ifla_bridge_af_spec_to_string(self, index):
return self.get_string(self.ifla_bridge_af_spec_to_string, index)
def get_ifla_info_string(self, index):
return self.get_string(self.ifla_info_to_string, index)
def get_ifla_vlan_string(self, index):
return self.get_string(self.ifla_vlan_to_string, index)
def get_ifla_vxlan_string(self, index):
return self.get_string(self.ifla_vxlan_to_string, index)
def get_ifla_macvlan_string(self, index):
return self.get_string(self.ifla_macvlan_to_string, index)
def get_macvlan_mode_string(self, index):
return self.get_string(self.macvlan_mode_to_string, index)
def get_ifla_gre_string(self, index):
return self.get_string(self.ifla_gre_to_string, index)
def get_ifla_vti_string(self, index):
return self.get_string(self.ifla_vti_to_string, index)
def get_ifla_iptun_string(self, index):
return self.get_string(self.ifla_iptun_to_string, index)
def get_ifla_bond_string(self, index):
return self.get_string(self.ifla_bond_to_string, index)
def get_ifla_bond_ad_string(self, index):
return self.get_string(self.ifla_bond_ad_to_string, index)
def get_ifla_brport_string(self, index):
return self.get_string(self.ifla_brport_to_string, index)
def get_ifla_br_string(self, index):
return self.get_string(self.ifla_br_to_string, index)
def get_bridge_vlan_string(self, index):
return self.get_string(self.bridge_vlan_to_string, index)
def get_bridge_flags_string(self, index):
return self.get_string(self.bridge_flags_to_string, index)
def decode_service_header(self):
# Nothing to do if the message did not contain a service header
if self.length == self.header_LEN:
return
(self.family, self.device_type,
self.ifindex,
self.flags,
self.change_mask) = \
unpack(self.PACK, self.msg_data[:self.LEN])
if self.debug:
color = yellow if self.use_color else None
color_start = "\033[%dm" % color if color else ""
color_end = "\033[0m" if color else ""
self.dump_buffer.append(" %sService Header%s" % (color_start, color_end))
for x in range(0, self.LEN/4):
if self.line_number == 5:
extra = "Family %s (%s:%d), Device Type %s (%d - %s)" % \
(zfilled_hex(self.family, 2), get_family_str(self.family), self.family,
zfilled_hex(self.device_type, 4), self.device_type, self.get_link_type_string(self.device_type))
elif self.line_number == 6:
extra = "Interface Index %s (%d)" % (zfilled_hex(self.ifindex, 8), self.ifindex)
elif self.line_number == 7:
extra = "Device Flags %s (%s)" % (zfilled_hex(self.flags, 8), self.get_flags_string())
elif self.line_number == 8:
extra = "Change Mask %s" % zfilled_hex(self.change_mask, 8)
else:
extra = "Unexpected line number %d" % self.line_number
start = x * 4
end = start + 4
self.dump_buffer.append(data_to_color_text(self.line_number, color, self.msg_data[start:end], extra))
self.line_number += 1
def is_up(self):
if self.flags & Link.IFF_UP:
return True
return False
class Netconf(Link):
"""
RTM_NEWNETCONF - Service Header
0 1
0 1 2 3 4 5 6 7 8
+-+-+-+-+-+-+-+-+
| Family |
+-+-+-+-+-+-+-+-+
RTM_GETNETCONF - Service Header
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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Family | Reserved | Device Type |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Interface Index |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Device Flags |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Change Mask |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
"""
# Netconf attributes
# /usr/include/linux/netconf.h
NETCONFA_UNSPEC = 0
NETCONFA_IFINDEX = 1
NETCONFA_FORWARDING = 2
NETCONFA_RP_FILTER = 3
NETCONFA_MC_FORWARDING = 4
NETCONFA_PROXY_NEIGH = 5
NETCONFA_IGNORE_ROUTES_WITH_LINKDOWN = 6
NETCONFA_INPUT = 7
__NETCONFA_MAX = 8
NETCONFA_MAX = (__NETCONFA_MAX - 1)
NETCONFA_ALL = -1
NETCONFA_IFINDEX_ALL = -1
NETCONFA_IFINDEX_DEFAULT = -2
NETCONF_ATTR_FAMILY = 0x0001
NETCONF_ATTR_IFINDEX = 0x0002
NETCONF_ATTR_RP_FILTER = 0x0004
NETCONF_ATTR_FWDING = 0x0008
NETCONF_ATTR_MC_FWDING = 0x0010
NETCONF_ATTR_PROXY_NEIGH = 0x0020
NETCONF_ATTR_IGNORE_RT_LINKDWN = 0x0040
attribute_to_class = {
NETCONFA_UNSPEC : ('NETCONFA_UNSPEC', AttributeGeneric),
NETCONFA_IFINDEX : ('NETCONFA_IFINDEX', AttributeFourByteValue),
NETCONFA_FORWARDING : ('NETCONFA_FORWARDING', AttributeFourByteValue),
NETCONFA_RP_FILTER : ('NETCONFA_RP_FILTER', AttributeFourByteValue),
NETCONFA_MC_FORWARDING : ('NETCONFA_MC_FORWARDING', AttributeFourByteValue),
NETCONFA_PROXY_NEIGH : ('NETCONFA_PROXY_NEIGH', AttributeFourByteValue),
NETCONFA_IGNORE_ROUTES_WITH_LINKDOWN : ('NETCONFA_IGNORE_ROUTES_WITH_LINKDOWN', AttributeFourByteValue),
NETCONFA_INPUT : ('NETCONFA_INPUT', AttributeFourByteValue),
}
def __init__(self, msgtype, debug=False, logger=None, use_color=True):
NetlinkPacket.__init__(self, msgtype, debug, logger, use_color)
if msgtype == RTM_GETNETCONF: # same as RTM_GETLINK
self.PACK = 'BxHiII'
self.LEN = calcsize(self.PACK)
elif msgtype == RTM_NEWNETCONF:
self.PACK = 'Bxxx'
self.LEN = calcsize(self.PACK)
def decode_service_header(self):
# Nothing to do if the message did not contain a service header
if self.length == self.header_LEN:
return
if self.msgtype == RTM_GETNETCONF:
super(Netconf, self).decode_service_header()
elif self.msgtype == RTM_NEWNETCONF:
(self.family,) = unpack(self.PACK, self.msg_data[:self.LEN])
if self.debug:
color = yellow if self.use_color else None
color_start = "\033[%dm" % color if color else ""
color_end = "\033[0m" if color else ""
self.dump_buffer.append(" %sService Header%s" % (color_start, color_end))
self.dump_buffer.append(data_to_color_text(1, color, bytearray(struct.pack('!I', self.family)), "Family %s (%s:%d)" % (zfilled_hex(self.family, 2), get_family_str(self.family), self.family)))
class Neighbor(NetlinkPacket):
"""
Service Header
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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Family | Reserved1 | Reserved2 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Interface Index |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| State | Flags | Type |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
"""
# Neighbor attributes
# /usr/include/linux/neighbour.h
NDA_UNSPEC = 0x00 # Unknown type
NDA_DST = 0x01 # A neighbour cache network. layer destination address
NDA_LLADDR = 0x02 # A neighbor cache link layer address.
NDA_CACHEINFO = 0x03 # Cache statistics
NDA_PROBES = 0x04
NDA_VLAN = 0x05
NDA_PORT = 0x06
NDA_VNI = 0x07
NDA_IFINDEX = 0x08
NDA_MASTER = 0x09
NDA_LINK_NETNSID = 0x0A
attribute_to_class = {
NDA_UNSPEC : ('NDA_UNSPEC', AttributeGeneric),
NDA_DST : ('NDA_DST', AttributeIPAddress),
NDA_LLADDR : ('NDA_LLADDR', AttributeMACAddress),
NDA_CACHEINFO : ('NDA_CACHEINFO', AttributeFourByteList),
NDA_PROBES : ('NDA_PROBES', AttributeFourByteValue),
NDA_VLAN : ('NDA_VLAN', AttributeTwoByteValue),
NDA_PORT : ('NDA_PORT', AttributeGeneric),
NDA_VNI : ('NDA_VNI', AttributeFourByteValue),
NDA_IFINDEX : ('NDA_IFINDEX', AttributeFourByteValue),
NDA_MASTER : ('NDA_MASTER', AttributeFourByteValue),
NDA_LINK_NETNSID : ('NDA_LINK_NETNSID', AttributeGeneric)
}
# Neighbor flags
# /usr/include/linux/neighbour.h
NTF_USE = 0x01
NTF_SELF = 0x02
NTF_MASTER = 0x04
NTF_PROXY = 0x08 # A proxy ARP entry
NTF_EXT_LEARNED = 0x10 # neigh entry installed by an external APP
NTF_ROUTER = 0x80 # An IPv6 router
flag_to_string = {
NTF_USE : 'NTF_USE',
NTF_SELF : 'NTF_SELF',
NTF_MASTER : 'NTF_MASTER',
NTF_PROXY : 'NTF_PROXY',
NTF_EXT_LEARNED : 'NTF_EXT_LEARNED',
NTF_ROUTER : 'NTF_ROUTER'
}
# Neighbor states
# /usr/include/linux/neighbour.h
NUD_NONE = 0x00
NUD_INCOMPLETE = 0x01 # Still attempting to resolve
NUD_REACHABLE = 0x02 # A confirmed working cache entry
NUD_STALE = 0x04 # an expired cache entry
NUD_DELAY = 0x08 # Neighbor no longer reachable. Traffic sent, waiting for confirmatio.
NUD_PROBE = 0x10 # A cache entry that is currently being re-solicited
NUD_FAILED = 0x20 # An invalid cache entry
NUD_NOARP = 0x40 # A device which does not do neighbor discovery(ARP)
NUD_PERMANENT = 0x80 # A static entry
state_to_string = {
NUD_NONE : 'NUD_NONE',
NUD_INCOMPLETE : 'NUD_INCOMPLETE',
NUD_REACHABLE : 'NUD_REACHABLE',
NUD_STALE : 'NUD_STALE',
NUD_DELAY : 'NUD_DELAY',
NUD_PROBE : 'NUD_PROBE',
NUD_FAILED : 'NUD_FAILED',
NUD_NOARP : 'NUD_NOARP',
NUD_PERMANENT : 'NUD_PERMANENT'
}
def __init__(self, msgtype, debug=False, logger=None, use_color=True):
NetlinkPacket.__init__(self, msgtype, debug, logger, use_color)
self.PACK = 'BxxxiHBB'
self.LEN = calcsize(self.PACK)
def get_state_string(self, index):
return self.get_string(self.state_to_string, index)
def get_states_string(self, states):
for_string = []
if states & Neighbor.NUD_INCOMPLETE:
for_string.append('NUD_INCOMPLETE')
if states & Neighbor.NUD_REACHABLE:
for_string.append('NUD_REACHABLE')
if states & Neighbor.NUD_STALE:
for_string.append('NUD_STALE')
if states & Neighbor.NUD_DELAY:
for_string.append('NUD_DELAY')
if states & Neighbor.NUD_PROBE:
for_string.append('NUD_PROBE')
if states & Neighbor.NUD_FAILED:
for_string.append('NUD_FAILED')
if states & Neighbor.NUD_NOARP:
for_string.append('NUD_NOARP')
if states & Neighbor.NUD_PERMANENT:
for_string.append('NUD_PERMANENT')
return ', '.join(for_string)
def get_flags_string(self, flags):
for_string = []
if flags & Neighbor.NTF_USE:
for_string.append('NTF_USE')
if flags & Neighbor.NTF_SELF:
for_string.append('NTF_SELF')
if flags & Neighbor.NTF_MASTER:
for_string.append('NTF_MASTER')
if flags & Neighbor.NTF_PROXY:
for_string.append('NTF_PROXY')
if flags & Neighbor.NTF_ROUTER:
for_string.append('NTF_ROUTER')
return ', '.join(for_string)
def decode_service_header(self):
# Nothing to do if the message did not contain a service header
if self.length == self.header_LEN:
return
(self.family,
self.ifindex,
self.state, self.flags, self.neighbor_type) = \
unpack(self.PACK, self.msg_data[:self.LEN])
if self.debug:
color = yellow if self.use_color else None
color_start = "\033[%dm" % color if color else ""
color_end = "\033[0m" if color else ""
self.dump_buffer.append(" %sService Header%s" % (color_start, color_end))
for x in range(0, self.LEN/4):
if self.line_number == 5:
extra = "Family %s (%s:%d)" % (zfilled_hex(self.family, 2), get_family_str(self.family), self.family)
elif self.line_number == 6:
extra = "Interface Index %s (%d)" % (zfilled_hex(self.ifindex, 8), self.ifindex)
elif self.line_number == 7:
extra = "State %s (%d) %s, Flags %s (%s) %s, Type %s (%d)" % \
(zfilled_hex(self.state, 4), self.state, self.get_states_string(self.state),
zfilled_hex(self.flags, 2), self.flags, self.get_flags_string(self.flags),
zfilled_hex(self.neighbor_type, 4), self.neighbor_type)
else:
extra = "Unexpected line number %d" % self.line_number
start = x * 4
end = start + 4
self.dump_buffer.append(data_to_color_text(self.line_number, color, self.msg_data[start:end], extra))
self.line_number += 1
class Route(NetlinkPacket):
"""
Service Header
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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Family | Dest length | Src length | TOS |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Table ID | Protocol | Scope | Type |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Flags |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
"""
# Route attributes
# /usr/include/linux/rtnetlink.h
RTA_UNSPEC = 0x00 # Ignored.
RTA_DST = 0x01 # Protocol address for route destination address.
RTA_SRC = 0x02 # Protocol address for route source address.
RTA_IIF = 0x03 # Input interface index.
RTA_OIF = 0x04 # Output interface index.
RTA_GATEWAY = 0x05 # Protocol address for the gateway of the route
RTA_PRIORITY = 0x06 # Priority of broker.
RTA_PREFSRC = 0x07 # Preferred source address in cases where more than one source address could be used.
RTA_METRICS = 0x08 # Route metrics attributed to route and associated protocols(e.g., RTT, initial TCP window, etc.).
RTA_MULTIPATH = 0x09 # Multipath route next hop's attributes.
RTA_PROTOINFO = 0x0A # Firewall based policy routing attribute.
RTA_FLOW = 0x0B # Route realm.
RTA_CACHEINFO = 0x0C # Cached route information.
RTA_SESSION = 0x0D
RTA_MP_ALGO = 0x0E
RTA_TABLE = 0x0F
RTA_MARK = 0x10
RTA_MFC_STATS = 0x11
RTA_VIA = 0x12
RTA_NEWDST = 0x13
RTA_PREF = 0x14
RTA_ENCAP_TYPE= 0x15
RTA_ENCAP = 0x16
attribute_to_class = {
RTA_UNSPEC : ('RTA_UNSPEC', AttributeGeneric),
RTA_DST : ('RTA_DST', AttributeIPAddress),
RTA_SRC : ('RTA_SRC', AttributeIPAddress),
RTA_IIF : ('RTA_IIF', AttributeFourByteValue),
RTA_OIF : ('RTA_OIF', AttributeFourByteValue),
RTA_GATEWAY : ('RTA_GATEWAY', AttributeIPAddress),
RTA_PRIORITY : ('RTA_PRIORITY', AttributeFourByteValue),
RTA_PREFSRC : ('RTA_PREFSRC', AttributeIPAddress),
RTA_METRICS : ('RTA_METRICS', AttributeGeneric),
RTA_MULTIPATH : ('RTA_MULTIPATH', AttributeRTA_MULTIPATH),
RTA_PROTOINFO : ('RTA_PROTOINFO', AttributeGeneric),
RTA_FLOW : ('RTA_FLOW', AttributeGeneric),
RTA_CACHEINFO : ('RTA_CACHEINFO', AttributeGeneric),
RTA_SESSION : ('RTA_SESSION', AttributeGeneric),
RTA_MP_ALGO : ('RTA_MP_ALGO', AttributeGeneric),
RTA_TABLE : ('RTA_TABLE', AttributeFourByteValue),
RTA_MARK : ('RTA_MARK', AttributeGeneric),
RTA_MFC_STATS : ('RTA_MFC_STATS', AttributeGeneric),
RTA_VIA : ('RTA_VIA', AttributeGeneric),
RTA_NEWDST : ('RTA_NEWDST', AttributeGeneric),
RTA_PREF : ('RTA_PREF', AttributeGeneric),
RTA_ENCAP_TYPE: ('RTA_ENCAP_TYPE', AttributeGeneric),
RTA_ENCAP : ('RTA_ENCAP', AttributeGeneric)
}
# Route tables
# /usr/include/linux/rtnetlink.h
RT_TABLE_UNSPEC = 0x00 # An unspecified routing table
RT_TABLE_COMPAT = 0xFC
RT_TABLE_DEFAULT = 0xFD # The default table
RT_TABLE_MAIN = 0xFE # The main table
RT_TABLE_LOCAL = 0xFF # The local table
table_to_string = {
RT_TABLE_UNSPEC : 'RT_TABLE_UNSPEC',
RT_TABLE_COMPAT : 'RT_TABLE_COMPAT',
RT_TABLE_DEFAULT : 'RT_TABLE_DEFAULT',
RT_TABLE_MAIN : 'RT_TABLE_MAIN',
RT_TABLE_LOCAL : 'RT_TABLE_LOCAL'
}
# Route scope
# /usr/include/linux/rtnetlink.h
RT_SCOPE_UNIVERSE = 0x00 # Global route
RT_SCOPE_SITE = 0xC8 # Interior route in the local autonomous system
RT_SCOPE_LINK = 0xFD # Route on this link
RT_SCOPE_HOST = 0xFE # Route on the local host
RT_SCOPE_NOWHERE = 0xFF # Destination does not exist
scope_to_string = {
RT_SCOPE_UNIVERSE : 'RT_SCOPE_UNIVERSE',
RT_SCOPE_SITE : 'RT_SCOPE_SITE',
RT_SCOPE_LINK : 'RT_SCOPE_LINK',
RT_SCOPE_HOST : 'RT_SCOPE_HOST',
RT_SCOPE_NOWHERE : 'RT_SCOPE_NOWHERE'
}
# Route scope to string
# iproute2/lib/rt_names.c
rtnl_rtscope_tab = {
RT_SCOPE_UNIVERSE: 'global',
RT_SCOPE_NOWHERE: 'nowhere',
RT_SCOPE_HOST: 'host',
RT_SCOPE_LINK: 'link',
RT_SCOPE_SITE: 'site'
}
# Routing stack
# /usr/include/linux/rtnetlink.h
RT_PROT_UNSPEC = 0x00 # Identifies what/who added the route
RT_PROT_REDIRECT = 0x01 # By an ICMP redirect
RT_PROT_KERNEL = 0x02 # By the kernel
RT_PROT_BOOT = 0x03 # During bootup
RT_PROT_STATIC = 0x04 # By the administrator
RT_PROT_GATED = 0x08 # GateD
RT_PROT_RA = 0x09 # RDISC/ND router advertissements
RT_PROT_MRT = 0x0A # Merit MRT
RT_PROT_ZEBRA = 0x0B # ZEBRA
RT_PROT_BIRD = 0x0C # BIRD
RT_PROT_DNROUTED = 0x0D # DECnet routing daemon
RT_PROT_XORP = 0x0E # XORP
RT_PROT_NTK = 0x0F # Netsukuku
RT_PROT_DHCP = 0x10 # DHCP client
RT_PROT_EXABGP = 0x11 # Exa Networks ExaBGP
prot_to_string = {
RT_PROT_UNSPEC : 'RT_PROT_UNSPEC',
RT_PROT_REDIRECT : 'RT_PROT_REDIRECT',
RT_PROT_KERNEL : 'RT_PROT_KERNEL',
RT_PROT_BOOT : 'RT_PROT_BOOT',
RT_PROT_STATIC : 'RT_PROT_STATIC',
RT_PROT_GATED : 'RT_PROT_GATED',
RT_PROT_RA : 'RT_PROT_RA',
RT_PROT_MRT : 'RT_PROT_MRT',
RT_PROT_ZEBRA : 'RT_PROT_ZEBRA',
RT_PROT_BIRD : 'RT_PROT_BIRD',
RT_PROT_DNROUTED : 'RT_PROT_DNROUTED',
RT_PROT_XORP : 'RT_PROT_XORP',
RT_PROT_NTK : 'RT_PROT_NTK',
RT_PROT_DHCP : 'RT_PROT_DHCP',
RT_PROT_EXABGP : 'RT_PROT_EXABGP'
}
# Route types
# /usr/include/linux/rtnetlink.h
RTN_UNSPEC = 0x00 # Unknown broker.
RTN_UNICAST = 0x01 # A gateway or direct broker.
RTN_LOCAL = 0x02 # A local interface broker.
RTN_BROADCAST = 0x03 # A local broadcast route(sent as a broadcast).
RTN_ANYCAST = 0x04 # An anycast broker.
RTN_MULTICAST = 0x05 # A multicast broker.
RTN_BLACKHOLE = 0x06 # A silent packet dropping broker.
RTN_UNREACHABLE = 0x07 # An unreachable destination. Packets dropped and
# host unreachable ICMPs are sent to the originator.
RTN_PROHIBIT = 0x08 # A packet rejection broker. Packets are dropped and
# communication prohibited ICMPs are sent to the originator.
RTN_THROW = 0x09 # When used with policy routing, continue routing lookup
# in another table. Under normal routing, packets are
# dropped and net unreachable ICMPs are sent to the originator.
RTN_NAT = 0x0A # A network address translation rule.
RTN_XRESOLVE = 0x0B # Refer to an external resolver(not implemented).
rt_type_to_string = {
RTN_UNSPEC : 'RTN_UNSPEC',
RTN_UNICAST : 'RTN_UNICAST',
RTN_LOCAL : 'RTN_LOCAL',
RTN_BROADCAST : 'RTN_BROADCAST',
RTN_ANYCAST : 'RTN_ANYCAST',
RTN_MULTICAST : 'RTN_MULTICAST',
RTN_BLACKHOLE : 'RTN_BLACKHOLE',
RTN_UNREACHABLE : 'RTN_UNREACHABLE',
RTN_PROHIBIT : 'RTN_PROHIBIT',
RTN_THROW : 'RTN_THROW',
RTN_NAT : 'RTN_NAT',
RTN_XRESOLVE : 'RTN_XRESOLVE'
}
# Route flags
# /usr/include/linux/rtnetlink.h
RTM_F_NOTIFY = 0x100 # If the route changes, notify the user
RTM_F_CLONED = 0x200 # Route is cloned from another route
RTM_F_EQUALIZE = 0x400 # Allow randomization of next hop path in multi-path routing(currently not implemented)
RTM_F_PREFIX = 0x800 # Prefix Address
flag_to_string = {
RTM_F_NOTIFY : 'RTM_F_NOTIFY',
RTM_F_CLONED : 'RTM_F_CLONED',
RTM_F_EQUALIZE : 'RTM_F_EQUALIZE',
RTM_F_PREFIX : 'RTM_F_PREFIX'
}
def __init__(self, msgtype, debug=False, logger=None, use_color=True):
NetlinkPacket.__init__(self, msgtype, debug, logger, use_color)
self.PACK = '=8BI' # or is it 8Bi ?
self.LEN = calcsize(self.PACK)
def get_prefix_string(self):
dst = self.get_attribute_value(self.RTA_DST)
if dst:
return "%s/%d" % (dst, self.src_len)
else:
if self.family == AF_INET:
return "0.0.0.0/0"
elif self.family == AF_INET6:
return "::/0"
def get_protocol_string(self, index=None):
if index is None:
index = self.protocol
return self.get_string(self.prot_to_string, index)
def get_rt_type_string(self, index=None):
if index is None:
index = self.route_type
return self.get_string(self.rt_type_to_string, index)
def get_scope_string(self, index=None):
if index is None:
index = self.scope
return self.get_string(self.scope_to_string, index)
def get_table_id_string(self, index=None):
if index is None:
index = self.table_id
return self.get_string(self.table_to_string, index)
def _get_ifname_from_index(self, ifindex, ifname_by_index):
if ifindex:
ifname = ifname_by_index.get(ifindex)
if ifname is None:
ifname = str(ifindex)
else:
ifname = None
return ifname
def get_nexthops(self, ifname_by_index={}):
nexthop = self.get_attribute_value(self.RTA_GATEWAY)
multipath = self.get_attribute_value(self.RTA_MULTIPATH)
nexthops = []
if nexthop:
rta_oif = self.get_attribute_value(self.RTA_OIF)
ifname = self._get_ifname_from_index(rta_oif, ifname_by_index)
nexthops.append((nexthop, ifname))
elif multipath:
for (nexthop, rtnh_ifindex, rtnh_flags, rtnh_hops) in multipath:
ifname = self._get_ifname_from_index(rtnh_ifindex, ifname_by_index)
nexthops.append((nexthop, ifname))
return nexthops
def get_nexthops_string(self, ifname_by_index={}):
output = []
for (nexthop, ifname) in self.get_nexthops(ifname_by_index):
output.append(" via %s on %s" % (nexthop, ifname))
return ",".join(output)
def decode_service_header(self):
# Nothing to do if the message did not contain a service header
if self.length == self.header_LEN:
return
(self.family, self.src_len, self.dst_len, self.tos,
self.table_id, self.protocol, self.scope, self.route_type,
self.flags) = \
unpack(self.PACK, self.msg_data[:self.LEN])
if self.debug:
color = yellow if self.use_color else None
color_start = "\033[%dm" % color if color else ""
color_end = "\033[0m" if color else ""
self.dump_buffer.append(" %sService Header%s" % (color_start, color_end))
for x in range(0, self.LEN/4):
if self.line_number == 5:
extra = "Family %s (%s:%d), Source Length %s (%d), Destination Length %s (%d), TOS %s (%d)" % \
(zfilled_hex(self.family, 2), get_family_str(self.family), self.family,
zfilled_hex(self.src_len, 2), self.src_len,
zfilled_hex(self.dst_len, 2), self.dst_len,
zfilled_hex(self.tos, 2), self.tos)
elif self.line_number == 6:
extra = "Table ID %s (%d - %s), Protocol %s (%d - %s), Scope %s (%d - %s), Type %s (%d - %s)" % \
(zfilled_hex(self.table_id, 2), self.table_id, self.get_table_id_string(),
zfilled_hex(self.protocol, 2), self.protocol, self.get_protocol_string(),
zfilled_hex(self.scope, 2), self.scope, self.get_scope_string(),
zfilled_hex(self.route_type, 2), self.route_type, self.get_rt_type_string())
elif self.line_number == 7:
extra = "Flags %s" % zfilled_hex(self.flags, 8)
else:
extra = "Unexpected line number %d" % self.line_number
start = x * 4
end = start + 4
self.dump_buffer.append(data_to_color_text(self.line_number, color, self.msg_data[start:end], extra))
self.line_number += 1
class Done(NetlinkPacket):
"""
NLMSG_DONE
Service Header
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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| TBD |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
"""
def __init__(self, msgtype, debug=False, logger=None, use_color=True):
NetlinkPacket.__init__(self, msgtype, debug, logger, use_color)
self.PACK = 'i'
self.LEN = calcsize(self.PACK)
def decode_service_header(self):
foo = unpack(self.PACK, self.msg_data[:self.LEN])
if self.debug:
color = yellow if self.use_color else None
color_start = "\033[%dm" % color if color else ""
color_end = "\033[0m" if color else ""
self.dump_buffer.append(" %sService Header%s" % (color_start, color_end))
for x in range(0, self.LEN/4):
extra = ''
start = x * 4
end = start + 4
self.dump_buffer.append(data_to_color_text(self.line_number, color, self.msg_data[start:end], extra))
self.line_number += 1
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