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git.proxmox.com Git - mirror_iproute2.git/blob - ip/ipmonitor.c
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>
17 #include <sys/socket.h>
18 #include <netinet/in.h>
19 #include <arpa/inet.h>
24 #include "ip_common.h"
26 static void usage(void) __attribute__((noreturn
));
30 static void usage(void)
32 fprintf(stderr
, "Usage: ip monitor [ all | LISTofOBJECTS ] [ FILE ] [ label ] [all-nsid] [dev DEVICE]\n");
33 fprintf(stderr
, "LISTofOBJECTS := link | address | route | mroute | prefix |\n");
34 fprintf(stderr
, " neigh | netconf | rule | nsid\n");
35 fprintf(stderr
, "FILE := file FILENAME\n");
39 static void print_headers(FILE *fp
, char *label
, struct rtnl_ctrl_data
*ctrl
)
44 if (listen_all_nsid
) {
45 if (ctrl
== NULL
|| ctrl
->nsid
< 0)
46 fprintf(fp
, "[nsid current]");
48 fprintf(fp
, "[nsid %d]", ctrl
->nsid
);
52 fprintf(fp
, "%s", label
);
55 static int accept_msg(const struct sockaddr_nl
*who
,
56 struct rtnl_ctrl_data
*ctrl
,
57 struct nlmsghdr
*n
, void *arg
)
59 FILE *fp
= (FILE *)arg
;
61 switch (n
->nlmsg_type
) {
64 struct rtmsg
*r
= NLMSG_DATA(n
);
65 int len
= n
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
));
68 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
72 if (r
->rtm_flags
& RTM_F_CLONED
)
75 if (r
->rtm_family
== RTNL_FAMILY_IPMR
||
76 r
->rtm_family
== RTNL_FAMILY_IP6MR
) {
77 print_headers(fp
, "[MROUTE]", ctrl
);
78 print_mroute(who
, n
, arg
);
81 print_headers(fp
, "[ROUTE]", ctrl
);
82 print_route(who
, n
, arg
);
89 ll_remember_index(who
, n
, NULL
);
90 print_headers(fp
, "[LINK]", ctrl
);
91 print_linkinfo(who
, n
, arg
);
96 print_headers(fp
, "[ADDR]", ctrl
);
97 print_addrinfo(who
, n
, arg
);
100 case RTM_NEWADDRLABEL
:
101 case RTM_DELADDRLABEL
:
102 print_headers(fp
, "[ADDRLABEL]", ctrl
);
103 print_addrlabel(who
, n
, arg
);
109 if (preferred_family
) {
110 struct ndmsg
*r
= NLMSG_DATA(n
);
112 if (r
->ndm_family
!= preferred_family
)
116 print_headers(fp
, "[NEIGH]", ctrl
);
117 print_neigh(who
, n
, arg
);
121 print_headers(fp
, "[PREFIX]", ctrl
);
122 print_prefix(who
, n
, arg
);
127 print_headers(fp
, "[RULE]", ctrl
);
128 print_rule(who
, n
, arg
);
132 print_nlmsg_timestamp(fp
, n
);
137 print_headers(fp
, "[NETCONF]", ctrl
);
138 print_netconf(who
, ctrl
, n
, arg
);
143 print_headers(fp
, "[NSID]", ctrl
);
144 print_nsid(who
, n
, arg
);
154 "Unknown message: type=0x%08x(%d) flags=0x%08x(%d) len=0x%08x(%d)\n",
155 n
->nlmsg_type
, n
->nlmsg_type
,
156 n
->nlmsg_flags
, n
->nlmsg_flags
, n
->nlmsg_len
,
162 int do_ipmonitor(int argc
, char **argv
)
165 unsigned int groups
= 0;
177 groups
|= nl_mgrp(RTNLGRP_LINK
);
178 groups
|= nl_mgrp(RTNLGRP_IPV4_IFADDR
);
179 groups
|= nl_mgrp(RTNLGRP_IPV6_IFADDR
);
180 groups
|= nl_mgrp(RTNLGRP_IPV4_ROUTE
);
181 groups
|= nl_mgrp(RTNLGRP_IPV6_ROUTE
);
182 groups
|= nl_mgrp(RTNLGRP_MPLS_ROUTE
);
183 groups
|= nl_mgrp(RTNLGRP_IPV4_MROUTE
);
184 groups
|= nl_mgrp(RTNLGRP_IPV6_MROUTE
);
185 groups
|= nl_mgrp(RTNLGRP_IPV6_PREFIX
);
186 groups
|= nl_mgrp(RTNLGRP_NEIGH
);
187 groups
|= nl_mgrp(RTNLGRP_IPV4_NETCONF
);
188 groups
|= nl_mgrp(RTNLGRP_IPV6_NETCONF
);
189 groups
|= nl_mgrp(RTNLGRP_IPV4_RULE
);
190 groups
|= nl_mgrp(RTNLGRP_IPV6_RULE
);
191 groups
|= nl_mgrp(RTNLGRP_NSID
);
192 groups
|= nl_mgrp(RTNLGRP_MPLS_NETCONF
);
197 if (matches(*argv
, "file") == 0) {
200 } else if (matches(*argv
, "label") == 0) {
202 } else if (matches(*argv
, "link") == 0) {
205 } else if (matches(*argv
, "address") == 0) {
208 } else if (matches(*argv
, "route") == 0) {
211 } else if (matches(*argv
, "mroute") == 0) {
214 } else if (matches(*argv
, "prefix") == 0) {
217 } else if (matches(*argv
, "neigh") == 0) {
220 } else if (matches(*argv
, "netconf") == 0) {
223 } else if (matches(*argv
, "rule") == 0) {
226 } else if (matches(*argv
, "nsid") == 0) {
229 } else if (strcmp(*argv
, "all") == 0) {
231 } else if (matches(*argv
, "all-nsid") == 0) {
233 } else if (matches(*argv
, "help") == 0) {
235 } else if (strcmp(*argv
, "dev") == 0) {
238 ifindex
= ll_name_to_index(*argv
);
240 invarg("Device does not exist\n", *argv
);
242 fprintf(stderr
, "Argument \"%s\" is unknown, try \"ip monitor help\".\n", *argv
);
248 ipaddr_reset_filter(1, ifindex
);
249 iproute_reset_filter(ifindex
);
250 ipmroute_reset_filter(ifindex
);
251 ipneigh_reset_filter(ifindex
);
252 ipnetconf_reset_filter(ifindex
);
255 groups
|= nl_mgrp(RTNLGRP_LINK
);
257 if (!preferred_family
|| preferred_family
== AF_INET
)
258 groups
|= nl_mgrp(RTNLGRP_IPV4_IFADDR
);
259 if (!preferred_family
|| preferred_family
== AF_INET6
)
260 groups
|= nl_mgrp(RTNLGRP_IPV6_IFADDR
);
263 if (!preferred_family
|| preferred_family
== AF_INET
)
264 groups
|= nl_mgrp(RTNLGRP_IPV4_ROUTE
);
265 if (!preferred_family
|| preferred_family
== AF_INET6
)
266 groups
|= nl_mgrp(RTNLGRP_IPV6_ROUTE
);
267 if (!preferred_family
|| preferred_family
== AF_MPLS
)
268 groups
|= nl_mgrp(RTNLGRP_MPLS_ROUTE
);
271 if (!preferred_family
|| preferred_family
== AF_INET
)
272 groups
|= nl_mgrp(RTNLGRP_IPV4_MROUTE
);
273 if (!preferred_family
|| preferred_family
== AF_INET6
)
274 groups
|= nl_mgrp(RTNLGRP_IPV6_MROUTE
);
277 if (!preferred_family
|| preferred_family
== AF_INET6
)
278 groups
|= nl_mgrp(RTNLGRP_IPV6_PREFIX
);
281 groups
|= nl_mgrp(RTNLGRP_NEIGH
);
284 if (!preferred_family
|| preferred_family
== AF_INET
)
285 groups
|= nl_mgrp(RTNLGRP_IPV4_NETCONF
);
286 if (!preferred_family
|| preferred_family
== AF_INET6
)
287 groups
|= nl_mgrp(RTNLGRP_IPV6_NETCONF
);
288 if (!preferred_family
|| preferred_family
== AF_MPLS
)
289 groups
|= nl_mgrp(RTNLGRP_MPLS_NETCONF
);
292 if (!preferred_family
|| preferred_family
== AF_INET
)
293 groups
|= nl_mgrp(RTNLGRP_IPV4_RULE
);
294 if (!preferred_family
|| preferred_family
== AF_INET6
)
295 groups
|= nl_mgrp(RTNLGRP_IPV6_RULE
);
298 groups
|= nl_mgrp(RTNLGRP_NSID
);
304 fp
= fopen(file
, "r");
306 perror("Cannot fopen");
309 err
= rtnl_from_file(fp
, accept_msg
, stdout
);
314 if (rtnl_open(&rth
, groups
) < 0)
316 if (listen_all_nsid
&& rtnl_listen_all_nsid(&rth
) < 0)
320 netns_nsid_socket_init();
323 if (rtnl_listen(&rth
, accept_msg
, stdout
) < 0)