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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
));
27 static int prefix_banner
;
30 static void usage(void)
33 "Usage: ip monitor [ all | LISTofOBJECTS ] [ FILE ] [ label ] [all-nsid] [dev DEVICE]\n"
34 "LISTofOBJECTS := link | address | route | mroute | prefix |\n"
35 " neigh | netconf | rule | nsid | nexthop\n"
36 "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(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
);
81 print_headers(fp
, "[ROUTE]", ctrl
);
89 print_headers(fp
, "[NEXTHOP]", ctrl
);
90 print_nexthop(n
, arg
);
95 ll_remember_index(n
, NULL
);
96 print_headers(fp
, "[LINK]", ctrl
);
97 print_linkinfo(n
, arg
);
102 print_headers(fp
, "[ADDR]", ctrl
);
103 print_addrinfo(n
, arg
);
106 case RTM_NEWADDRLABEL
:
107 case RTM_DELADDRLABEL
:
108 print_headers(fp
, "[ADDRLABEL]", ctrl
);
109 print_addrlabel(n
, arg
);
115 if (preferred_family
) {
116 struct ndmsg
*r
= NLMSG_DATA(n
);
118 if (r
->ndm_family
!= preferred_family
)
122 print_headers(fp
, "[NEIGH]", ctrl
);
127 print_headers(fp
, "[PREFIX]", ctrl
);
128 print_prefix(n
, arg
);
133 print_headers(fp
, "[RULE]", ctrl
);
138 print_nlmsg_timestamp(fp
, n
);
143 print_headers(fp
, "[NETCONF]", ctrl
);
144 print_netconf(ctrl
, n
, arg
);
149 print_headers(fp
, "[NSID]", ctrl
);
160 "Unknown message: type=0x%08x(%d) flags=0x%08x(%d) len=0x%08x(%d)\n",
161 n
->nlmsg_type
, n
->nlmsg_type
,
162 n
->nlmsg_flags
, n
->nlmsg_flags
, n
->nlmsg_len
,
168 int do_ipmonitor(int argc
, char **argv
)
170 int lnexthop
= 0, nh_set
= 1;
172 unsigned int groups
= 0;
184 groups
|= nl_mgrp(RTNLGRP_LINK
);
185 groups
|= nl_mgrp(RTNLGRP_IPV4_IFADDR
);
186 groups
|= nl_mgrp(RTNLGRP_IPV6_IFADDR
);
187 groups
|= nl_mgrp(RTNLGRP_IPV4_ROUTE
);
188 groups
|= nl_mgrp(RTNLGRP_IPV6_ROUTE
);
189 groups
|= nl_mgrp(RTNLGRP_MPLS_ROUTE
);
190 groups
|= nl_mgrp(RTNLGRP_IPV4_MROUTE
);
191 groups
|= nl_mgrp(RTNLGRP_IPV6_MROUTE
);
192 groups
|= nl_mgrp(RTNLGRP_IPV6_PREFIX
);
193 groups
|= nl_mgrp(RTNLGRP_NEIGH
);
194 groups
|= nl_mgrp(RTNLGRP_IPV4_NETCONF
);
195 groups
|= nl_mgrp(RTNLGRP_IPV6_NETCONF
);
196 groups
|= nl_mgrp(RTNLGRP_IPV4_RULE
);
197 groups
|= nl_mgrp(RTNLGRP_IPV6_RULE
);
198 groups
|= nl_mgrp(RTNLGRP_NSID
);
199 groups
|= nl_mgrp(RTNLGRP_MPLS_NETCONF
);
204 if (matches(*argv
, "file") == 0) {
207 } else if (matches(*argv
, "label") == 0) {
209 } else if (matches(*argv
, "link") == 0) {
213 } else if (matches(*argv
, "address") == 0) {
217 } else if (matches(*argv
, "route") == 0) {
221 } else if (matches(*argv
, "mroute") == 0) {
225 } else if (matches(*argv
, "prefix") == 0) {
229 } else if (matches(*argv
, "neigh") == 0) {
233 } else if (matches(*argv
, "netconf") == 0) {
237 } else if (matches(*argv
, "rule") == 0) {
241 } else if (matches(*argv
, "nsid") == 0) {
245 } else if (matches(*argv
, "nexthop") == 0) {
248 } else if (strcmp(*argv
, "all") == 0) {
250 } else if (matches(*argv
, "all-nsid") == 0) {
252 } else if (matches(*argv
, "help") == 0) {
254 } else if (strcmp(*argv
, "dev") == 0) {
257 ifindex
= ll_name_to_index(*argv
);
259 invarg("Device does not exist\n", *argv
);
261 fprintf(stderr
, "Argument \"%s\" is unknown, try \"ip monitor help\".\n", *argv
);
267 ipaddr_reset_filter(1, ifindex
);
268 iproute_reset_filter(ifindex
);
269 ipmroute_reset_filter(ifindex
);
270 ipneigh_reset_filter(ifindex
);
271 ipnetconf_reset_filter(ifindex
);
274 groups
|= nl_mgrp(RTNLGRP_LINK
);
276 if (!preferred_family
|| preferred_family
== AF_INET
)
277 groups
|= nl_mgrp(RTNLGRP_IPV4_IFADDR
);
278 if (!preferred_family
|| preferred_family
== AF_INET6
)
279 groups
|= nl_mgrp(RTNLGRP_IPV6_IFADDR
);
282 if (!preferred_family
|| preferred_family
== AF_INET
)
283 groups
|= nl_mgrp(RTNLGRP_IPV4_ROUTE
);
284 if (!preferred_family
|| preferred_family
== AF_INET6
)
285 groups
|= nl_mgrp(RTNLGRP_IPV6_ROUTE
);
286 if (!preferred_family
|| preferred_family
== AF_MPLS
)
287 groups
|= nl_mgrp(RTNLGRP_MPLS_ROUTE
);
290 if (!preferred_family
|| preferred_family
== AF_INET
)
291 groups
|= nl_mgrp(RTNLGRP_IPV4_MROUTE
);
292 if (!preferred_family
|| preferred_family
== AF_INET6
)
293 groups
|= nl_mgrp(RTNLGRP_IPV6_MROUTE
);
296 if (!preferred_family
|| preferred_family
== AF_INET6
)
297 groups
|= nl_mgrp(RTNLGRP_IPV6_PREFIX
);
300 groups
|= nl_mgrp(RTNLGRP_NEIGH
);
303 if (!preferred_family
|| preferred_family
== AF_INET
)
304 groups
|= nl_mgrp(RTNLGRP_IPV4_NETCONF
);
305 if (!preferred_family
|| preferred_family
== AF_INET6
)
306 groups
|= nl_mgrp(RTNLGRP_IPV6_NETCONF
);
307 if (!preferred_family
|| preferred_family
== AF_MPLS
)
308 groups
|= nl_mgrp(RTNLGRP_MPLS_NETCONF
);
311 if (!preferred_family
|| preferred_family
== AF_INET
)
312 groups
|= nl_mgrp(RTNLGRP_IPV4_RULE
);
313 if (!preferred_family
|| preferred_family
== AF_INET6
)
314 groups
|= nl_mgrp(RTNLGRP_IPV6_RULE
);
317 groups
|= nl_mgrp(RTNLGRP_NSID
);
326 fp
= fopen(file
, "r");
328 perror("Cannot fopen");
331 err
= rtnl_from_file(fp
, accept_msg
, stdout
);
336 if (rtnl_open(&rth
, groups
) < 0)
339 if (lnexthop
&& rtnl_add_nl_group(&rth
, RTNLGRP_NEXTHOP
) < 0) {
340 fprintf(stderr
, "Failed to add nexthop group to list\n");
344 if (listen_all_nsid
&& rtnl_listen_all_nsid(&rth
) < 0)
348 netns_nsid_socket_init();
351 if (rtnl_listen(&rth
, accept_msg
, stdout
) < 0)