1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
|
# This file is part of the sos project: https://github.com/sosreport/sos
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# version 2 of the GNU General Public License.
#
# See the LICENSE file in the source distribution for further information.
from sos.plugins import Plugin, RedHatPlugin, UbuntuPlugin, DebianPlugin
import re
class Networking(Plugin):
"""network and device configuration
"""
plugin_name = "networking"
profiles = ('network', 'hardware', 'system')
trace_host = "www.example.com"
option_list = [(
("traceroute", "collect a traceroute to %s" % trace_host, "slow",
False)
)]
# switch to enable netstat "wide" (non-truncated) output mode
ns_wide = "-W"
def get_ip_netns(self, ip_netns_file):
"""Returns a list for which items are namespaces in the output of
ip netns stored in the ip_netns_file.
"""
out = []
try:
ip_netns_out = open(ip_netns_file).read()
except IOError:
return out
for line in ip_netns_out.splitlines():
# If there's no namespaces, no need to continue
if line.startswith("Object \"netns\" is unknown") \
or line.isspace() \
or line[:1].isspace():
return out
out.append(line.partition(' ')[0])
return out
def collect_iptable(self, tablename):
""" When running the iptables command, it unfortunately auto-loads
the modules before trying to get output. Some people explicitly
don't want this, so check if the modules are loaded before running
the command. If they aren't loaded, there can't possibly be any
relevant rules in that table """
modname = "iptable_"+tablename
if self.check_ext_prog("grep -q %s /proc/modules" % modname):
cmd = "iptables -t "+tablename+" -nvL"
self.add_cmd_output(cmd)
def collect_ip6table(self, tablename):
""" Same as function above, but for ipv6 """
modname = "ip6table_"+tablename
if self.check_ext_prog("grep -q %s /proc/modules" % modname):
cmd = "ip6tables -t "+tablename+" -nvL"
self.add_cmd_output(cmd)
def collect_nftables(self):
""" Collects nftables rulesets with 'nft' commands if the modules
are present """
if self.check_ext_prog("grep -q nf_tables /proc/modules"):
self.add_cmd_output("nft list ruleset")
def setup(self):
super(Networking, self).setup()
self.add_copy_spec([
"/proc/net/",
"/etc/nsswitch.conf",
"/etc/yp.conf",
"/etc/inetd.conf",
"/etc/xinetd.conf",
"/etc/xinetd.d",
"/etc/host*",
"/etc/resolv.conf",
"/etc/network*",
"/etc/nftables",
"/etc/sysconfig/nftables.conf",
"/etc/nftables.conf",
"/etc/dnsmasq*",
"/sys/class/net/*/device/numa_node",
"/sys/class/net/*/flags",
"/sys/class/net/*/statistics/",
"/etc/iproute2"
])
self.add_forbidden_path([
"/proc/net/rpc/use-gss-proxy",
"/proc/net/rpc/*/channel",
"/proc/net/rpc/*/flush",
# Cisco CDP
"/proc/net/cdp",
"/sys/net/cdp",
# Dialogic Diva
"/proc/net/eicon"
])
self.add_cmd_output("ip -o addr", root_symlink="ip_addr")
self.add_cmd_output("route -n", root_symlink="route")
self.add_cmd_output("plotnetcfg")
# collect iptables -t for any existing table, if we can't read the
# tables, collect 3 default ones (nat, mangle, filter)
try:
ip_tables_names = open("/proc/net/ip_tables_names").read()
except IOError:
ip_tables_names = "nat\nmangle\nfilter\n"
for table in ip_tables_names.splitlines():
self.collect_iptable(table)
# collect the same for ip6tables
try:
ip_tables_names = open("/proc/net/ip6_tables_names").read()
except IOError:
ip_tables_names = "nat\nmangle\nfilter\n"
for table in ip_tables_names.splitlines():
self.collect_ip6table(table)
self.collect_nftables()
self.add_cmd_output("netstat %s -neopa" % self.ns_wide,
root_symlink="netstat")
self.add_cmd_output([
"netstat -s",
"netstat %s -agn" % self.ns_wide,
"ss -peaonmi",
"ip route show table all",
"ip -6 route show table all",
"ip -4 rule",
"ip -6 rule",
"ip -s -d link",
"ip -d address",
"ifenslave -a",
"ip mroute show",
"ip maddr show",
"ip -s -s neigh show",
"ip neigh show nud noarp",
"biosdevname -d",
"tc -s qdisc show",
"ip -s macsec show",
])
# When iptables is called it will load the modules
# iptables and iptables_filter if they are not loaded.
# The same goes for ipv6.
if self.check_ext_prog("grep -q iptable_filter /proc/modules"):
self.add_cmd_output("iptables -vnxL")
if self.check_ext_prog("grep -q ip6table_filter /proc/modules"):
self.add_cmd_output("ip6tables -vnxL")
# Get ethtool output for every device that does not exist in a
# namespace.
for eth in os.listdir("/sys/class/net/"):
# skip 'bonding_masters' file created when loading the bonding
# module but the file does not correspond to a device
if eth == "bonding_masters":
continue
self.add_cmd_output([
"ethtool " + eth,
"ethtool -d " + eth,
"ethtool -i " + eth,
"ethtool -k " + eth,
"ethtool -S " + eth,
"ethtool -T " + eth,
"ethtool -a " + eth,
"ethtool -c " + eth,
"ethtool -g " + eth,
"ethtool -e " + eth,
"ethtool -P " + eth,
"ethtool -l " + eth,
"ethtool --phy-statistics " + eth,
"ethtool --show-priv-flags " + eth,
"ethtool --show-eee " + eth
])
# Collect information about bridges (some data already collected via
# "ip .." commands)
self.add_cmd_output([
"bridge -s -s -d link show",
"bridge -s -s -d -t fdb show",
"bridge -s -s -d -t mdb show",
"bridge -d vlan show"
])
if self.get_option("traceroute"):
self.add_cmd_output("/bin/traceroute -n %s" % self.trace_host)
# Capture additional data from namespaces; each command is run
# per-namespace.
ip_netns_file = self.get_cmd_output_now("ip netns")
cmd_prefix = "ip netns exec "
if ip_netns_file:
for namespace in self.get_ip_netns(ip_netns_file):
ns_cmd_prefix = cmd_prefix + namespace + " "
self.add_cmd_output([
ns_cmd_prefix + "ip address show",
ns_cmd_prefix + "ip route show table all",
ns_cmd_prefix + "iptables-save",
ns_cmd_prefix + "ss -peaonmi",
ns_cmd_prefix + "netstat %s -neopa" % self.ns_wide,
ns_cmd_prefix + "netstat -s",
ns_cmd_prefix + "netstat %s -agn" % self.ns_wide
])
# Devices that exist in a namespace use less ethtool
# parameters. Run this per namespace.
for namespace in self.get_ip_netns(ip_netns_file):
ns_cmd_prefix = cmd_prefix + namespace + " "
netns_netdev_list = self.call_ext_prog(ns_cmd_prefix +
"ls -1 /sys/class/net/")
for eth in netns_netdev_list['output'].splitlines():
# skip 'bonding_masters' file created when loading the
# bonding module but the file does not correspond to
# a device
if eth == "bonding_masters":
continue
self.add_cmd_output([
ns_cmd_prefix + "ethtool " + eth,
ns_cmd_prefix + "ethtool -i " + eth,
ns_cmd_prefix + "ethtool -k " + eth,
ns_cmd_prefix + "ethtool -S " + eth
])
return
class RedHatNetworking(Networking, RedHatPlugin):
trace_host = "rhn.redhat.com"
def setup(self):
# Handle change from -T to -W in Red Hat netstat 2.0 and greater.
try:
netstat_pkg = self.policy.package_manager.all_pkgs()['net-tools']
# major version
if int(netstat_pkg['version'][0]) < 2:
self.ns_wide = "-T"
except Exception:
# default to upstream option
pass
super(RedHatNetworking, self).setup()
class UbuntuNetworking(Networking, UbuntuPlugin, DebianPlugin):
trace_host = "archive.ubuntu.com"
def setup(self):
super(UbuntuNetworking, self).setup()
self.add_copy_spec([
"/etc/resolvconf",
"/etc/network/interfaces",
"/etc/network/interfaces.d",
"/etc/ufw",
"/var/log/ufw.Log",
"/etc/resolv.conf",
"/run/netplan/*.yaml",
"/etc/netplan/*.yaml",
"/lib/netplan/*.yaml",
"/run/systemd/network"
])
self.add_cmd_output([
"/usr/sbin/ufw status",
"/usr/sbin/ufw app list"
])
if self.get_option("traceroute"):
self.add_cmd_output("/usr/sbin/traceroute -n %s" % self.trace_host)
# vim: set et ts=4 sw=4 :
|
