[mirror_iproute2.git] / ip / ipmonitor.c

/*
 * ipmonitor.c		"ip monitor".
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 *
 * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <time.h>

#include "utils.h"
#include "ip_common.h"

static void usage(void) __attribute__((noreturn));
int prefix_banner;
int listen_all_nsid;

static void usage(void)
{
	fprintf(stderr, "Usage: ip monitor [ all | LISTofOBJECTS ] [ FILE ] [ label ] [all-nsid] [dev DEVICE]\n");
	fprintf(stderr, "LISTofOBJECTS := link | address | route | mroute | prefix |\n");
	fprintf(stderr, "                 neigh | netconf | rule | nsid\n");
	fprintf(stderr, "FILE := file FILENAME\n");
	exit(-1);
}

static void print_headers(FILE *fp, char *label, struct rtnl_ctrl_data *ctrl)
{
	if (timestamp)
		print_timestamp(fp);

	if (listen_all_nsid) {
		if (ctrl == NULL || ctrl->nsid < 0)
			fprintf(fp, "[nsid current]");
		else
			fprintf(fp, "[nsid %d]", ctrl->nsid);
	}

	if (prefix_banner)
		fprintf(fp, "%s", label);
}

static int accept_msg(const struct sockaddr_nl *who,
		      struct rtnl_ctrl_data *ctrl,
		      struct nlmsghdr *n, void *arg)
{
	FILE *fp = (FILE *)arg;

	if (n->nlmsg_type == RTM_NEWROUTE || n->nlmsg_type == RTM_DELROUTE) {
		struct rtmsg *r = NLMSG_DATA(n);
		int len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*r));

		if (len < 0) {
			fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
			return -1;
		}

		if (r->rtm_flags & RTM_F_CLONED)
			return 0;

		if (r->rtm_family == RTNL_FAMILY_IPMR ||
		    r->rtm_family == RTNL_FAMILY_IP6MR) {
			print_headers(fp, "[MROUTE]", ctrl);
			print_mroute(who, n, arg);
			return 0;
		} else {
			print_headers(fp, "[ROUTE]", ctrl);
			print_route(who, n, arg);
			return 0;
		}
	}

	if (n->nlmsg_type == RTM_NEWLINK || n->nlmsg_type == RTM_DELLINK) {
		ll_remember_index(who, n, NULL);
		print_headers(fp, "[LINK]", ctrl);
		print_linkinfo(who, n, arg);
		return 0;
	}
	if (n->nlmsg_type == RTM_NEWADDR || n->nlmsg_type == RTM_DELADDR) {
		print_headers(fp, "[ADDR]", ctrl);
		print_addrinfo(who, n, arg);
		return 0;
	}
	if (n->nlmsg_type == RTM_NEWADDRLABEL || n->nlmsg_type == RTM_DELADDRLABEL) {
		print_headers(fp, "[ADDRLABEL]", ctrl);
		print_addrlabel(who, n, arg);
		return 0;
	}
	if (n->nlmsg_type == RTM_NEWNEIGH || n->nlmsg_type == RTM_DELNEIGH ||
	    n->nlmsg_type == RTM_GETNEIGH) {
		if (preferred_family) {
			struct ndmsg *r = NLMSG_DATA(n);

			if (r->ndm_family != preferred_family)
				return 0;
		}

		print_headers(fp, "[NEIGH]", ctrl);
		print_neigh(who, n, arg);
		return 0;
	}
	if (n->nlmsg_type == RTM_NEWPREFIX) {
		print_headers(fp, "[PREFIX]", ctrl);
		print_prefix(who, n, arg);
		return 0;
	}
	if (n->nlmsg_type == RTM_NEWRULE || n->nlmsg_type == RTM_DELRULE) {
		print_headers(fp, "[RULE]", ctrl);
		print_rule(who, n, arg);
		return 0;
	}
	if (n->nlmsg_type == RTM_NEWNETCONF) {
		print_headers(fp, "[NETCONF]", ctrl);
		print_netconf(who, ctrl, n, arg);
		return 0;
	}
	if (n->nlmsg_type == NLMSG_TSTAMP) {
		print_nlmsg_timestamp(fp, n);
		return 0;
	}
	if (n->nlmsg_type == RTM_NEWNSID || n->nlmsg_type == RTM_DELNSID) {
		print_headers(fp, "[NSID]", ctrl);
		print_nsid(who, n, arg);
		return 0;
	}
	if (n->nlmsg_type != NLMSG_ERROR && n->nlmsg_type != NLMSG_NOOP &&
	    n->nlmsg_type != NLMSG_DONE) {
		fprintf(fp, "Unknown message: type=0x%08x(%d) flags=0x%08x(%d)len=0x%08x(%d)\n",
			n->nlmsg_type, n->nlmsg_type,
			n->nlmsg_flags, n->nlmsg_flags, n->nlmsg_len,
			n->nlmsg_len);
	}
	return 0;
}

int do_ipmonitor(int argc, char **argv)
{
	char *file = NULL;
	unsigned int groups = 0;
	int llink = 0;
	int laddr = 0;
	int lroute = 0;
	int lmroute = 0;
	int lprefix = 0;
	int lneigh = 0;
	int lnetconf = 0;
	int lrule = 0;
	int lnsid = 0;
	int ifindex = 0;

	groups |= nl_mgrp(RTNLGRP_LINK);
	groups |= nl_mgrp(RTNLGRP_IPV4_IFADDR);
	groups |= nl_mgrp(RTNLGRP_IPV6_IFADDR);
	groups |= nl_mgrp(RTNLGRP_IPV4_ROUTE);
	groups |= nl_mgrp(RTNLGRP_IPV6_ROUTE);
	groups |= nl_mgrp(RTNLGRP_MPLS_ROUTE);
	groups |= nl_mgrp(RTNLGRP_IPV4_MROUTE);
	groups |= nl_mgrp(RTNLGRP_IPV6_MROUTE);
	groups |= nl_mgrp(RTNLGRP_IPV6_PREFIX);
	groups |= nl_mgrp(RTNLGRP_NEIGH);
	groups |= nl_mgrp(RTNLGRP_IPV4_NETCONF);
	groups |= nl_mgrp(RTNLGRP_IPV6_NETCONF);
	groups |= nl_mgrp(RTNLGRP_IPV4_RULE);
	groups |= nl_mgrp(RTNLGRP_IPV6_RULE);
	groups |= nl_mgrp(RTNLGRP_NSID);
	groups |= nl_mgrp(RTNLGRP_MPLS_NETCONF);

	rtnl_close(&rth);

	while (argc > 0) {
		if (matches(*argv, "file") == 0) {
			NEXT_ARG();
			file = *argv;
		} else if (matches(*argv, "label") == 0) {
			prefix_banner = 1;
		} else if (matches(*argv, "link") == 0) {
			llink = 1;
			groups = 0;
		} else if (matches(*argv, "address") == 0) {
			laddr = 1;
			groups = 0;
		} else if (matches(*argv, "route") == 0) {
			lroute = 1;
			groups = 0;
		} else if (matches(*argv, "mroute") == 0) {
			lmroute = 1;
			groups = 0;
		} else if (matches(*argv, "prefix") == 0) {
			lprefix = 1;
			groups = 0;
		} else if (matches(*argv, "neigh") == 0) {
			lneigh = 1;
			groups = 0;
		} else if (matches(*argv, "netconf") == 0) {
			lnetconf = 1;
			groups = 0;
		} else if (matches(*argv, "rule") == 0) {
			lrule = 1;
			groups = 0;
		} else if (matches(*argv, "nsid") == 0) {
			lnsid = 1;
			groups = 0;
		} else if (strcmp(*argv, "all") == 0) {
			prefix_banner = 1;
		} else if (matches(*argv, "all-nsid") == 0) {
			listen_all_nsid = 1;
		} else if (matches(*argv, "help") == 0) {
			usage();
		} else if (strcmp(*argv, "dev") == 0) {
			NEXT_ARG();

			ifindex = ll_name_to_index(*argv);
			if (!ifindex)
				invarg("Device does not exist\n", *argv);
		} else {
			fprintf(stderr, "Argument \"%s\" is unknown, try \"ip monitor help\".\n", *argv);
			exit(-1);
		}
		argc--;	argv++;
	}

	ipaddr_reset_filter(1, ifindex);
	iproute_reset_filter(ifindex);
	ipmroute_reset_filter(ifindex);
	ipneigh_reset_filter(ifindex);
	ipnetconf_reset_filter(ifindex);

	if (llink)
		groups |= nl_mgrp(RTNLGRP_LINK);
	if (laddr) {
		if (!preferred_family || preferred_family == AF_INET)
			groups |= nl_mgrp(RTNLGRP_IPV4_IFADDR);
		if (!preferred_family || preferred_family == AF_INET6)
			groups |= nl_mgrp(RTNLGRP_IPV6_IFADDR);
	}
	if (lroute) {
		if (!preferred_family || preferred_family == AF_INET)
			groups |= nl_mgrp(RTNLGRP_IPV4_ROUTE);
		if (!preferred_family || preferred_family == AF_INET6)
			groups |= nl_mgrp(RTNLGRP_IPV6_ROUTE);
		if (!preferred_family || preferred_family == AF_MPLS)
			groups |= nl_mgrp(RTNLGRP_MPLS_ROUTE);
	}
	if (lmroute) {
		if (!preferred_family || preferred_family == AF_INET)
			groups |= nl_mgrp(RTNLGRP_IPV4_MROUTE);
		if (!preferred_family || preferred_family == AF_INET6)
			groups |= nl_mgrp(RTNLGRP_IPV6_MROUTE);
	}
	if (lprefix) {
		if (!preferred_family || preferred_family == AF_INET6)
			groups |= nl_mgrp(RTNLGRP_IPV6_PREFIX);
	}
	if (lneigh) {
		groups |= nl_mgrp(RTNLGRP_NEIGH);
	}
	if (lnetconf) {
		if (!preferred_family || preferred_family == AF_INET)
			groups |= nl_mgrp(RTNLGRP_IPV4_NETCONF);
		if (!preferred_family || preferred_family == AF_INET6)
			groups |= nl_mgrp(RTNLGRP_IPV6_NETCONF);
		if (!preferred_family || preferred_family == AF_MPLS)
			groups |= nl_mgrp(RTNLGRP_MPLS_NETCONF);
	}
	if (lrule) {
		if (!preferred_family || preferred_family == AF_INET)
			groups |= nl_mgrp(RTNLGRP_IPV4_RULE);
		if (!preferred_family || preferred_family == AF_INET6)
			groups |= nl_mgrp(RTNLGRP_IPV6_RULE);
	}
	if (lnsid) {
		groups |= nl_mgrp(RTNLGRP_NSID);
	}
	if (file) {
		FILE *fp;
		int err;

		fp = fopen(file, "r");
		if (fp == NULL) {
			perror("Cannot fopen");
			exit(-1);
		}
		err = rtnl_from_file(fp, accept_msg, stdout);
		fclose(fp);
		return err;
	}

	if (rtnl_open(&rth, groups) < 0)
		exit(1);
	if (listen_all_nsid && rtnl_listen_all_nsid(&rth) < 0)
		exit(1);

	ll_init_map(&rth);
	netns_nsid_socket_init();
	netns_map_init();

	if (rtnl_listen(&rth, accept_msg, stdout) < 0)
		exit(2);

	return 0;
}
Commit	Line	Data
aba5acdf SH	1	/*
	2	* ipmonitor.c "ip monitor".
	3	*
	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.
	8	*
	9	* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
	10	*
	11	*/
	12
	13	#include <stdio.h>
	14	#include <stdlib.h>
	15	#include <unistd.h>
aba5acdf SH	16	#include <fcntl.h>
	17	#include <sys/socket.h>
	18	#include <netinet/in.h>
	19	#include <arpa/inet.h>
	20	#include <string.h>
	21	#include <time.h>
	22
	23	#include "utils.h"
	24	#include "ip_common.h"
	25
	26	static void usage(void) __attribute__((noreturn));
4b6e07d8	27	int prefix_banner;
449b824a	28	int listen_all_nsid;
aba5acdf SH	29
	30	static void usage(void)
	31	{
56f5daac	32	fprintf(stderr, "Usage: ip monitor [ all \| LISTofOBJECTS ] [ FILE ] [ label ] [all-nsid] [dev DEVICE]\n");
cbe195dc	33	fprintf(stderr, "LISTofOBJECTS := link \| address \| route \| mroute \| prefix \|\n");
d652ccbf	34	fprintf(stderr, " neigh \| netconf \| rule \| nsid\n");
cbe195dc	35	fprintf(stderr, "FILE := file FILENAME\n");
aba5acdf SH	36	exit(-1);
	37	}
	38
449b824a	39	static void print_headers(FILE fp, char label, struct rtnl_ctrl_data *ctrl)
3b0006f8 ND	40	{
	41	if (timestamp)
	42	print_timestamp(fp);
	43
449b824a ND	44	if (listen_all_nsid) {
	45	if (ctrl == NULL \|\| ctrl->nsid < 0)
	46	fprintf(fp, "[nsid current]");
	47	else
	48	fprintf(fp, "[nsid %d]", ctrl->nsid);
	49	}
	50
3b0006f8 ND	51	if (prefix_banner)
	52	fprintf(fp, "%s", label);
	53	}
	54
d1f28cf1	55	static int accept_msg(const struct sockaddr_nl *who,
0628cddd	56	struct rtnl_ctrl_data *ctrl,
d1f28cf1	57	struct nlmsghdr n, void arg)
aba5acdf	58	{
56f5daac	59	FILE fp = (FILE )arg;
aba5acdf SH	60
aba5acdf SH	61	if (n->nlmsg_type == RTM_NEWROUTE \|\| n->nlmsg_type == RTM_DELROUTE) {
e34d3dcc ND	62	struct rtmsg *r = NLMSG_DATA(n);
	63	int len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*r));
	64
	65	if (len < 0) {
	66	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	67	return -1;
	68	}
	69
2271779d	70	if (r->rtm_flags & RTM_F_CLONED)
	71	return 0;
	72
e34d3dcc ND	73	if (r->rtm_family == RTNL_FAMILY_IPMR \|\|
e34d3dcc ND	74	r->rtm_family == RTNL_FAMILY_IP6MR) {
449b824a	75	print_headers(fp, "[MROUTE]", ctrl);
e34d3dcc ND	76	print_mroute(who, n, arg);
	77	return 0;
	78	} else {
449b824a	79	print_headers(fp, "[ROUTE]", ctrl);
e34d3dcc ND	80	print_route(who, n, arg);
	81	return 0;
	82	}
aba5acdf	83	}
2271779d	84
aba5acdf SH	85	if (n->nlmsg_type == RTM_NEWLINK \|\| n->nlmsg_type == RTM_DELLINK) {
aba5acdf SH	86	ll_remember_index(who, n, NULL);
449b824a	87	print_headers(fp, "[LINK]", ctrl);
aba5acdf SH	88	print_linkinfo(who, n, arg);
	89	return 0;
	90	}
	91	if (n->nlmsg_type == RTM_NEWADDR \|\| n->nlmsg_type == RTM_DELADDR) {
449b824a	92	print_headers(fp, "[ADDR]", ctrl);
aba5acdf SH	93	print_addrinfo(who, n, arg);
	94	return 0;
	95	}
4759758c	96	if (n->nlmsg_type == RTM_NEWADDRLABEL \|\| n->nlmsg_type == RTM_DELADDRLABEL) {
449b824a	97	print_headers(fp, "[ADDRLABEL]", ctrl);
4759758c YH	98	print_addrlabel(who, n, arg);
	99	return 0;
	100	}
1556e29d DS	101	if (n->nlmsg_type == RTM_NEWNEIGH \|\| n->nlmsg_type == RTM_DELNEIGH \|\|
1556e29d DS	102	n->nlmsg_type == RTM_GETNEIGH) {
00185653 SH	103	if (preferred_family) {
	104	struct ndmsg *r = NLMSG_DATA(n);
	105
	106	if (r->ndm_family != preferred_family)
	107	return 0;
	108	}
	109
449b824a	110	print_headers(fp, "[NEIGH]", ctrl);
aba5acdf SH	111	print_neigh(who, n, arg);
	112	return 0;
	113	}
1cb54e58	114	if (n->nlmsg_type == RTM_NEWPREFIX) {
449b824a	115	print_headers(fp, "[PREFIX]", ctrl);
1cb54e58	116	print_prefix(who, n, arg);
	117	return 0;
	118	}
98bde989	119	if (n->nlmsg_type == RTM_NEWRULE \|\| n->nlmsg_type == RTM_DELRULE) {
449b824a	120	print_headers(fp, "[RULE]", ctrl);
98bde989 TG	121	print_rule(who, n, arg);
	122	return 0;
	123	}
9d0efc10	124	if (n->nlmsg_type == RTM_NEWNETCONF) {
449b824a	125	print_headers(fp, "[NETCONF]", ctrl);
0628cddd	126	print_netconf(who, ctrl, n, arg);
9d0efc10 ND	127	return 0;
9d0efc10 ND	128	}
27b14f2e	129	if (n->nlmsg_type == NLMSG_TSTAMP) {
ddb1129b	130	print_nlmsg_timestamp(fp, n);
aba5acdf SH	131	return 0;
aba5acdf SH	132	}
d652ccbf	133	if (n->nlmsg_type == RTM_NEWNSID \|\| n->nlmsg_type == RTM_DELNSID) {
449b824a	134	print_headers(fp, "[NSID]", ctrl);
d652ccbf ND	135	print_nsid(who, n, arg);
	136	return 0;
	137	}
aba5acdf SH	138	if (n->nlmsg_type != NLMSG_ERROR && n->nlmsg_type != NLMSG_NOOP &&
aba5acdf SH	139	n->nlmsg_type != NLMSG_DONE) {
56f5daac SH	140	fprintf(fp, "Unknown message: type=0x%08x(%d) flags=0x%08x(%d)len=0x%08x(%d)\n",
56f5daac SH	141	n->nlmsg_type, n->nlmsg_type,
40aadf8b	142	n->nlmsg_flags, n->nlmsg_flags, n->nlmsg_len,
40aadf8b	143	n->nlmsg_len);
aba5acdf SH	144	}
	145	return 0;
	146	}
	147
	148	int do_ipmonitor(int argc, char **argv)
	149	{
aba5acdf	150	char *file = NULL;
56f5daac SH	151	unsigned int groups = 0;
	152	int llink = 0;
	153	int laddr = 0;
	154	int lroute = 0;
	155	int lmroute = 0;
	156	int lprefix = 0;
	157	int lneigh = 0;
	158	int lnetconf = 0;
	159	int lrule = 0;
	160	int lnsid = 0;
	161	int ifindex = 0;
aba5acdf	162
6fcabac5	163	groups \|= nl_mgrp(RTNLGRP_LINK);
	164	groups \|= nl_mgrp(RTNLGRP_IPV4_IFADDR);
	165	groups \|= nl_mgrp(RTNLGRP_IPV6_IFADDR);
	166	groups \|= nl_mgrp(RTNLGRP_IPV4_ROUTE);
	167	groups \|= nl_mgrp(RTNLGRP_IPV6_ROUTE);
dacc5d41	168	groups \|= nl_mgrp(RTNLGRP_MPLS_ROUTE);
6fcabac5	169	groups \|= nl_mgrp(RTNLGRP_IPV4_MROUTE);
	170	groups \|= nl_mgrp(RTNLGRP_IPV6_MROUTE);
	171	groups \|= nl_mgrp(RTNLGRP_IPV6_PREFIX);
	172	groups \|= nl_mgrp(RTNLGRP_NEIGH);
	173	groups \|= nl_mgrp(RTNLGRP_IPV4_NETCONF);
	174	groups \|= nl_mgrp(RTNLGRP_IPV6_NETCONF);
2dd5909d ND	175	groups \|= nl_mgrp(RTNLGRP_IPV4_RULE);
2dd5909d ND	176	groups \|= nl_mgrp(RTNLGRP_IPV6_RULE);
d652ccbf	177	groups \|= nl_mgrp(RTNLGRP_NSID);
76f7d89d	178	groups \|= nl_mgrp(RTNLGRP_MPLS_NETCONF);
6fcabac5	179
fc57a9df	180	rtnl_close(&rth);
aba5acdf SH	181
	182	while (argc > 0) {
	183	if (matches(*argv, "file") == 0) {
	184	NEXT_ARG();
	185	file = *argv;
488c41d2 MS	186	} else if (matches(*argv, "label") == 0) {
488c41d2 MS	187	prefix_banner = 1;
aba5acdf	188	} else if (matches(*argv, "link") == 0) {
56f5daac	189	llink = 1;
aba5acdf SH	190	groups = 0;
aba5acdf SH	191	} else if (matches(*argv, "address") == 0) {
56f5daac	192	laddr = 1;
aba5acdf SH	193	groups = 0;
aba5acdf SH	194	} else if (matches(*argv, "route") == 0) {
56f5daac	195	lroute = 1;
aba5acdf	196	groups = 0;
e34d3dcc	197	} else if (matches(*argv, "mroute") == 0) {
56f5daac	198	lmroute = 1;
e34d3dcc	199	groups = 0;
1cb54e58	200	} else if (matches(*argv, "prefix") == 0) {
56f5daac	201	lprefix = 1;
1cb54e58	202	groups = 0;
fb063322	203	} else if (matches(*argv, "neigh") == 0) {
6cdbf370 AH	204	lneigh = 1;
6cdbf370 AH	205	groups = 0;
9d0efc10 ND	206	} else if (matches(*argv, "netconf") == 0) {
	207	lnetconf = 1;
	208	groups = 0;
2dd5909d ND	209	} else if (matches(*argv, "rule") == 0) {
	210	lrule = 1;
	211	groups = 0;
d652ccbf ND	212	} else if (matches(*argv, "nsid") == 0) {
	213	lnsid = 1;
	214	groups = 0;
aba5acdf	215	} else if (strcmp(*argv, "all") == 0) {
56f5daac	216	prefix_banner = 1;
a9390c92 RP	217	} else if (matches(*argv, "all-nsid") == 0) {
a9390c92 RP	218	listen_all_nsid = 1;
aba5acdf SH	219	} else if (matches(*argv, "help") == 0) {
aba5acdf SH	220	usage();
093b7646	221	} else if (strcmp(*argv, "dev") == 0) {
	222	NEXT_ARG();
	223
	224	ifindex = ll_name_to_index(*argv);
	225	if (!ifindex)
	226	invarg("Device does not exist\n", *argv);
aba5acdf SH	227	} else {
	228	fprintf(stderr, "Argument \"%s\" is unknown, try \"ip monitor help\".\n", *argv);
	229	exit(-1);
	230	}
	231	argc--; argv++;
	232	}
	233
093b7646	234	ipaddr_reset_filter(1, ifindex);
	235	iproute_reset_filter(ifindex);
	236	ipmroute_reset_filter(ifindex);
	237	ipneigh_reset_filter(ifindex);
	238	ipnetconf_reset_filter(ifindex);
	239
aba5acdf	240	if (llink)
b64f58b0	241	groups \|= nl_mgrp(RTNLGRP_LINK);
aba5acdf SH	242	if (laddr) {
aba5acdf SH	243	if (!preferred_family \|\| preferred_family == AF_INET)
b64f58b0	244	groups \|= nl_mgrp(RTNLGRP_IPV4_IFADDR);
aba5acdf	245	if (!preferred_family \|\| preferred_family == AF_INET6)
b64f58b0	246	groups \|= nl_mgrp(RTNLGRP_IPV6_IFADDR);
aba5acdf SH	247	}
	248	if (lroute) {
	249	if (!preferred_family \|\| preferred_family == AF_INET)
b64f58b0	250	groups \|= nl_mgrp(RTNLGRP_IPV4_ROUTE);
aba5acdf	251	if (!preferred_family \|\| preferred_family == AF_INET6)
b64f58b0	252	groups \|= nl_mgrp(RTNLGRP_IPV6_ROUTE);
dacc5d41 EB	253	if (!preferred_family \|\| preferred_family == AF_MPLS)
dacc5d41 EB	254	groups \|= nl_mgrp(RTNLGRP_MPLS_ROUTE);
aba5acdf	255	}
e34d3dcc ND	256	if (lmroute) {
	257	if (!preferred_family \|\| preferred_family == AF_INET)
	258	groups \|= nl_mgrp(RTNLGRP_IPV4_MROUTE);
	259	if (!preferred_family \|\| preferred_family == AF_INET6)
	260	groups \|= nl_mgrp(RTNLGRP_IPV6_MROUTE);
	261	}
1cb54e58	262	if (lprefix) {
1cb54e58	263	if (!preferred_family \|\| preferred_family == AF_INET6)
b64f58b0	264	groups \|= nl_mgrp(RTNLGRP_IPV6_PREFIX);
1cb54e58	265	}
fb063322 VC	266	if (lneigh) {
	267	groups \|= nl_mgrp(RTNLGRP_NEIGH);
	268	}
9d0efc10 ND	269	if (lnetconf) {
	270	if (!preferred_family \|\| preferred_family == AF_INET)
	271	groups \|= nl_mgrp(RTNLGRP_IPV4_NETCONF);
	272	if (!preferred_family \|\| preferred_family == AF_INET6)
	273	groups \|= nl_mgrp(RTNLGRP_IPV6_NETCONF);
76f7d89d DA	274	if (!preferred_family \|\| preferred_family == AF_MPLS)
76f7d89d DA	275	groups \|= nl_mgrp(RTNLGRP_MPLS_NETCONF);
9d0efc10	276	}
2dd5909d ND	277	if (lrule) {
	278	if (!preferred_family \|\| preferred_family == AF_INET)
	279	groups \|= nl_mgrp(RTNLGRP_IPV4_RULE);
	280	if (!preferred_family \|\| preferred_family == AF_INET6)
	281	groups \|= nl_mgrp(RTNLGRP_IPV6_RULE);
	282	}
d652ccbf ND	283	if (lnsid) {
	284	groups \|= nl_mgrp(RTNLGRP_NSID);
	285	}
aba5acdf SH	286	if (file) {
aba5acdf SH	287	FILE *fp;
e49b51d6 SH	288	int err;
e49b51d6 SH	289
aba5acdf SH	290	fp = fopen(file, "r");
	291	if (fp == NULL) {
	292	perror("Cannot fopen");
	293	exit(-1);
	294	}
e49b51d6 SH	295	err = rtnl_from_file(fp, accept_msg, stdout);
	296	fclose(fp);
	297	return err;
aba5acdf SH	298	}
aba5acdf SH	299
fc57a9df SH	300	if (rtnl_open(&rth, groups) < 0)
fc57a9df SH	301	exit(1);
449b824a ND	302	if (listen_all_nsid && rtnl_listen_all_nsid(&rth) < 0)
	303	exit(1);
	304
aba5acdf	305	ll_init_map(&rth);
e29a8e05	306	netns_nsid_socket_init();
d652ccbf	307	netns_map_init();
aba5acdf	308
fc57a9df	309	if (rtnl_listen(&rth, accept_msg, stdout) < 0)
aba5acdf SH	310	exit(2);
aba5acdf SH	311
351efcde	312	return 0;
aba5acdf	313	}