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3171d471288775d23146b6eb4d4c105a078c08bd
2 * ipmonitor.c "ip monitor".
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
18 #include <sys/socket.h>
19 #include <netinet/in.h>
20 #include <arpa/inet.h>
25 #include "ip_common.h"
27 static void usage(void) __attribute__((noreturn
));
31 static void usage(void)
33 fprintf(stderr
, "Usage: ip monitor [ all | LISTofOBJECTS ] [ FILE ] [ label ] [all-nsid] [dev DEVICE]\n");
34 fprintf(stderr
, "LISTofOBJECTS := link | address | route | mroute | prefix |\n");
35 fprintf(stderr
, " neigh | netconf | rule | nsid\n");
36 fprintf(stderr
, "FILE := file FILENAME\n");
40 static void print_headers(FILE *fp
, char *label
, struct rtnl_ctrl_data
*ctrl
)
45 if (listen_all_nsid
) {
46 if (ctrl
== NULL
|| ctrl
->nsid
< 0)
47 fprintf(fp
, "[nsid current]");
49 fprintf(fp
, "[nsid %d]", ctrl
->nsid
);
53 fprintf(fp
, "%s", label
);
56 static int accept_msg(const struct sockaddr_nl
*who
,
57 struct rtnl_ctrl_data
*ctrl
,
58 struct nlmsghdr
*n
, void *arg
)
60 FILE *fp
= (FILE *)arg
;
62 if (n
->nlmsg_type
== RTM_NEWROUTE
|| n
->nlmsg_type
== RTM_DELROUTE
) {
63 struct rtmsg
*r
= NLMSG_DATA(n
);
64 int len
= n
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
));
67 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
71 if (r
->rtm_flags
& RTM_F_CLONED
)
74 if (r
->rtm_family
== RTNL_FAMILY_IPMR
||
75 r
->rtm_family
== RTNL_FAMILY_IP6MR
) {
76 print_headers(fp
, "[MROUTE]", ctrl
);
77 print_mroute(who
, n
, arg
);
80 print_headers(fp
, "[ROUTE]", ctrl
);
81 print_route(who
, n
, arg
);
86 if (n
->nlmsg_type
== RTM_NEWLINK
|| n
->nlmsg_type
== RTM_DELLINK
) {
87 ll_remember_index(who
, n
, NULL
);
88 print_headers(fp
, "[LINK]", ctrl
);
89 print_linkinfo(who
, n
, arg
);
92 if (n
->nlmsg_type
== RTM_NEWADDR
|| n
->nlmsg_type
== RTM_DELADDR
) {
93 print_headers(fp
, "[ADDR]", ctrl
);
94 print_addrinfo(who
, n
, arg
);
97 if (n
->nlmsg_type
== RTM_NEWADDRLABEL
|| n
->nlmsg_type
== RTM_DELADDRLABEL
) {
98 print_headers(fp
, "[ADDRLABEL]", ctrl
);
99 print_addrlabel(who
, n
, arg
);
102 if (n
->nlmsg_type
== RTM_NEWNEIGH
|| n
->nlmsg_type
== RTM_DELNEIGH
||
103 n
->nlmsg_type
== RTM_GETNEIGH
) {
104 if (preferred_family
) {
105 struct ndmsg
*r
= NLMSG_DATA(n
);
107 if (r
->ndm_family
!= preferred_family
)
111 print_headers(fp
, "[NEIGH]", ctrl
);
112 print_neigh(who
, n
, arg
);
115 if (n
->nlmsg_type
== RTM_NEWPREFIX
) {
116 print_headers(fp
, "[PREFIX]", ctrl
);
117 print_prefix(who
, n
, arg
);
120 if (n
->nlmsg_type
== RTM_NEWRULE
|| n
->nlmsg_type
== RTM_DELRULE
) {
121 print_headers(fp
, "[RULE]", ctrl
);
122 print_rule(who
, n
, arg
);
125 if (n
->nlmsg_type
== RTM_NEWNETCONF
) {
126 print_headers(fp
, "[NETCONF]", ctrl
);
127 print_netconf(who
, ctrl
, n
, arg
);
130 if (n
->nlmsg_type
== NLMSG_TSTAMP
) {
131 print_nlmsg_timestamp(fp
, n
);
134 if (n
->nlmsg_type
== RTM_NEWNSID
|| n
->nlmsg_type
== RTM_DELNSID
) {
135 print_headers(fp
, "[NSID]", ctrl
);
136 print_nsid(who
, n
, arg
);
139 if (n
->nlmsg_type
!= NLMSG_ERROR
&& n
->nlmsg_type
!= NLMSG_NOOP
&&
140 n
->nlmsg_type
!= NLMSG_DONE
) {
141 fprintf(fp
, "Unknown message: type=0x%08x(%d) flags=0x%08x(%d)len=0x%08x(%d)\n",
142 n
->nlmsg_type
, n
->nlmsg_type
,
143 n
->nlmsg_flags
, n
->nlmsg_flags
, n
->nlmsg_len
,
149 int do_ipmonitor(int argc
, char **argv
)
152 unsigned int groups
= 0;
164 groups
|= nl_mgrp(RTNLGRP_LINK
);
165 groups
|= nl_mgrp(RTNLGRP_IPV4_IFADDR
);
166 groups
|= nl_mgrp(RTNLGRP_IPV6_IFADDR
);
167 groups
|= nl_mgrp(RTNLGRP_IPV4_ROUTE
);
168 groups
|= nl_mgrp(RTNLGRP_IPV6_ROUTE
);
169 groups
|= nl_mgrp(RTNLGRP_MPLS_ROUTE
);
170 groups
|= nl_mgrp(RTNLGRP_IPV4_MROUTE
);
171 groups
|= nl_mgrp(RTNLGRP_IPV6_MROUTE
);
172 groups
|= nl_mgrp(RTNLGRP_IPV6_PREFIX
);
173 groups
|= nl_mgrp(RTNLGRP_NEIGH
);
174 groups
|= nl_mgrp(RTNLGRP_IPV4_NETCONF
);
175 groups
|= nl_mgrp(RTNLGRP_IPV6_NETCONF
);
176 groups
|= nl_mgrp(RTNLGRP_IPV4_RULE
);
177 groups
|= nl_mgrp(RTNLGRP_IPV6_RULE
);
178 groups
|= nl_mgrp(RTNLGRP_NSID
);
179 groups
|= nl_mgrp(RTNLGRP_MPLS_NETCONF
);
184 if (matches(*argv
, "file") == 0) {
187 } else if (matches(*argv
, "label") == 0) {
189 } else if (matches(*argv
, "link") == 0) {
192 } else if (matches(*argv
, "address") == 0) {
195 } else if (matches(*argv
, "route") == 0) {
198 } else if (matches(*argv
, "mroute") == 0) {
201 } else if (matches(*argv
, "prefix") == 0) {
204 } else if (matches(*argv
, "neigh") == 0) {
207 } else if (matches(*argv
, "netconf") == 0) {
210 } else if (matches(*argv
, "rule") == 0) {
213 } else if (matches(*argv
, "nsid") == 0) {
216 } else if (strcmp(*argv
, "all") == 0) {
218 } else if (matches(*argv
, "all-nsid") == 0) {
220 } else if (matches(*argv
, "help") == 0) {
222 } else if (strcmp(*argv
, "dev") == 0) {
225 ifindex
= ll_name_to_index(*argv
);
227 invarg("Device does not exist\n", *argv
);
229 fprintf(stderr
, "Argument \"%s\" is unknown, try \"ip monitor help\".\n", *argv
);
235 ipaddr_reset_filter(1, ifindex
);
236 iproute_reset_filter(ifindex
);
237 ipmroute_reset_filter(ifindex
);
238 ipneigh_reset_filter(ifindex
);
239 ipnetconf_reset_filter(ifindex
);
242 groups
|= nl_mgrp(RTNLGRP_LINK
);
244 if (!preferred_family
|| preferred_family
== AF_INET
)
245 groups
|= nl_mgrp(RTNLGRP_IPV4_IFADDR
);
246 if (!preferred_family
|| preferred_family
== AF_INET6
)
247 groups
|= nl_mgrp(RTNLGRP_IPV6_IFADDR
);
250 if (!preferred_family
|| preferred_family
== AF_INET
)
251 groups
|= nl_mgrp(RTNLGRP_IPV4_ROUTE
);
252 if (!preferred_family
|| preferred_family
== AF_INET6
)
253 groups
|= nl_mgrp(RTNLGRP_IPV6_ROUTE
);
254 if (!preferred_family
|| preferred_family
== AF_MPLS
)
255 groups
|= nl_mgrp(RTNLGRP_MPLS_ROUTE
);
258 if (!preferred_family
|| preferred_family
== AF_INET
)
259 groups
|= nl_mgrp(RTNLGRP_IPV4_MROUTE
);
260 if (!preferred_family
|| preferred_family
== AF_INET6
)
261 groups
|= nl_mgrp(RTNLGRP_IPV6_MROUTE
);
264 if (!preferred_family
|| preferred_family
== AF_INET6
)
265 groups
|= nl_mgrp(RTNLGRP_IPV6_PREFIX
);
268 groups
|= nl_mgrp(RTNLGRP_NEIGH
);
271 if (!preferred_family
|| preferred_family
== AF_INET
)
272 groups
|= nl_mgrp(RTNLGRP_IPV4_NETCONF
);
273 if (!preferred_family
|| preferred_family
== AF_INET6
)
274 groups
|= nl_mgrp(RTNLGRP_IPV6_NETCONF
);
275 if (!preferred_family
|| preferred_family
== AF_MPLS
)
276 groups
|= nl_mgrp(RTNLGRP_MPLS_NETCONF
);
279 if (!preferred_family
|| preferred_family
== AF_INET
)
280 groups
|= nl_mgrp(RTNLGRP_IPV4_RULE
);
281 if (!preferred_family
|| preferred_family
== AF_INET6
)
282 groups
|= nl_mgrp(RTNLGRP_IPV6_RULE
);
285 groups
|= nl_mgrp(RTNLGRP_NSID
);
291 fp
= fopen(file
, "r");
293 perror("Cannot fopen");
296 err
= rtnl_from_file(fp
, accept_msg
, stdout
);
301 if (rtnl_open(&rth
, groups
) < 0)
303 if (listen_all_nsid
&& rtnl_listen_all_nsid(&rth
) < 0)
307 netns_nsid_socket_init();
310 if (rtnl_listen(&rth
, accept_msg
, stdout
) < 0)