[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(struct rtnl_ctrl_data *ctrl,
		      struct nlmsghdr *n, void *arg)
{
	FILE *fp = (FILE *)arg;

	switch (n->nlmsg_type) {
	case RTM_NEWROUTE:
	case 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(n, arg);
			return 0;
		} else {
			print_headers(fp, "[ROUTE]", ctrl);
			print_route(n, arg);
			return 0;
		}
	}

	case RTM_NEWLINK:
	case RTM_DELLINK:
		ll_remember_index(n, NULL);
		print_headers(fp, "[LINK]", ctrl);
		print_linkinfo(n, arg);
		return 0;

	case RTM_NEWADDR:
	case RTM_DELADDR:
		print_headers(fp, "[ADDR]", ctrl);
		print_addrinfo(n, arg);
		return 0;

	case RTM_NEWADDRLABEL:
	case RTM_DELADDRLABEL:
		print_headers(fp, "[ADDRLABEL]", ctrl);
		print_addrlabel(n, arg);
		return 0;

	case RTM_NEWNEIGH:
	case RTM_DELNEIGH:
	case 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(n, arg);
		return 0;

	case RTM_NEWPREFIX:
		print_headers(fp, "[PREFIX]", ctrl);
		print_prefix(n, arg);
		return 0;

	case RTM_NEWRULE:
	case RTM_DELRULE:
		print_headers(fp, "[RULE]", ctrl);
		print_rule(n, arg);
		return 0;

	case NLMSG_TSTAMP:
		print_nlmsg_timestamp(fp, n);
		return 0;

	case RTM_NEWNETCONF:
	case RTM_DELNETCONF:
		print_headers(fp, "[NETCONF]", ctrl);
		print_netconf(ctrl, n, arg);
		return 0;

	case RTM_DELNSID:
	case RTM_NEWNSID:
		print_headers(fp, "[NSID]", ctrl);
		print_nsid(n, arg);
		return 0;

	case NLMSG_ERROR:
	case NLMSG_NOOP:
	case NLMSG_DONE:
		break;	/* ignore */

	default:
		fprintf(stderr,
			"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
cd554f2c	55	static int accept_msg(struct rtnl_ctrl_data *ctrl,
d1f28cf1	56	struct nlmsghdr n, void arg)
aba5acdf	57	{
56f5daac	58	FILE fp = (FILE )arg;
aba5acdf	59
40443f49 SH	60	switch (n->nlmsg_type) {
	61	case RTM_NEWROUTE:
	62	case RTM_DELROUTE: {
e34d3dcc ND	63	struct rtmsg *r = NLMSG_DATA(n);
	64	int len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*r));
	65
	66	if (len < 0) {
	67	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	68	return -1;
	69	}
	70
2271779d	71	if (r->rtm_flags & RTM_F_CLONED)
	72	return 0;
	73
e34d3dcc ND	74	if (r->rtm_family == RTNL_FAMILY_IPMR \|\|
e34d3dcc ND	75	r->rtm_family == RTNL_FAMILY_IP6MR) {
449b824a	76	print_headers(fp, "[MROUTE]", ctrl);
cd554f2c	77	print_mroute(n, arg);
e34d3dcc ND	78	return 0;
e34d3dcc ND	79	} else {
449b824a	80	print_headers(fp, "[ROUTE]", ctrl);
cd554f2c	81	print_route(n, arg);
e34d3dcc ND	82	return 0;
e34d3dcc ND	83	}
aba5acdf	84	}
2271779d	85
40443f49 SH	86	case RTM_NEWLINK:
40443f49 SH	87	case RTM_DELLINK:
cd554f2c	88	ll_remember_index(n, NULL);
449b824a	89	print_headers(fp, "[LINK]", ctrl);
cd554f2c	90	print_linkinfo(n, arg);
aba5acdf	91	return 0;
40443f49 SH	92
	93	case RTM_NEWADDR:
	94	case RTM_DELADDR:
449b824a	95	print_headers(fp, "[ADDR]", ctrl);
cd554f2c	96	print_addrinfo(n, arg);
aba5acdf	97	return 0;
40443f49 SH	98
	99	case RTM_NEWADDRLABEL:
	100	case RTM_DELADDRLABEL:
449b824a	101	print_headers(fp, "[ADDRLABEL]", ctrl);
cd554f2c	102	print_addrlabel(n, arg);
4759758c	103	return 0;
40443f49 SH	104
	105	case RTM_NEWNEIGH:
	106	case RTM_DELNEIGH:
	107	case RTM_GETNEIGH:
00185653 SH	108	if (preferred_family) {
	109	struct ndmsg *r = NLMSG_DATA(n);
	110
	111	if (r->ndm_family != preferred_family)
	112	return 0;
	113	}
	114
449b824a	115	print_headers(fp, "[NEIGH]", ctrl);
cd554f2c	116	print_neigh(n, arg);
aba5acdf	117	return 0;
40443f49 SH	118
40443f49 SH	119	case RTM_NEWPREFIX:
449b824a	120	print_headers(fp, "[PREFIX]", ctrl);
cd554f2c	121	print_prefix(n, arg);
1cb54e58	122	return 0;
40443f49 SH	123
	124	case RTM_NEWRULE:
	125	case RTM_DELRULE:
449b824a	126	print_headers(fp, "[RULE]", ctrl);
cd554f2c	127	print_rule(n, arg);
98bde989	128	return 0;
40443f49 SH	129
	130	case NLMSG_TSTAMP:
	131	print_nlmsg_timestamp(fp, n);
	132	return 0;
	133
	134	case RTM_NEWNETCONF:
e09d21f6	135	case RTM_DELNETCONF:
449b824a	136	print_headers(fp, "[NETCONF]", ctrl);
cd554f2c	137	print_netconf(ctrl, n, arg);
9d0efc10	138	return 0;
40443f49 SH	139
	140	case RTM_DELNSID:
	141	case RTM_NEWNSID:
449b824a	142	print_headers(fp, "[NSID]", ctrl);
cd554f2c	143	print_nsid(n, arg);
d652ccbf	144	return 0;
40443f49 SH	145
	146	case NLMSG_ERROR:
	147	case NLMSG_NOOP:
	148	case NLMSG_DONE:
	149	break; /* ignore */
	150
	151	default:
	152	fprintf(stderr,
	153	"Unknown message: type=0x%08x(%d) flags=0x%08x(%d) len=0x%08x(%d)\n",
56f5daac	154	n->nlmsg_type, n->nlmsg_type,
40aadf8b	155	n->nlmsg_flags, n->nlmsg_flags, n->nlmsg_len,
40aadf8b	156	n->nlmsg_len);
aba5acdf SH	157	}
	158	return 0;
	159	}
	160
	161	int do_ipmonitor(int argc, char **argv)
	162	{
aba5acdf	163	char *file = NULL;
56f5daac SH	164	unsigned int groups = 0;
	165	int llink = 0;
	166	int laddr = 0;
	167	int lroute = 0;
	168	int lmroute = 0;
	169	int lprefix = 0;
	170	int lneigh = 0;
	171	int lnetconf = 0;
	172	int lrule = 0;
	173	int lnsid = 0;
	174	int ifindex = 0;
aba5acdf	175
6fcabac5	176	groups \|= nl_mgrp(RTNLGRP_LINK);
	177	groups \|= nl_mgrp(RTNLGRP_IPV4_IFADDR);
	178	groups \|= nl_mgrp(RTNLGRP_IPV6_IFADDR);
	179	groups \|= nl_mgrp(RTNLGRP_IPV4_ROUTE);
	180	groups \|= nl_mgrp(RTNLGRP_IPV6_ROUTE);
dacc5d41	181	groups \|= nl_mgrp(RTNLGRP_MPLS_ROUTE);
6fcabac5	182	groups \|= nl_mgrp(RTNLGRP_IPV4_MROUTE);
	183	groups \|= nl_mgrp(RTNLGRP_IPV6_MROUTE);
	184	groups \|= nl_mgrp(RTNLGRP_IPV6_PREFIX);
	185	groups \|= nl_mgrp(RTNLGRP_NEIGH);
	186	groups \|= nl_mgrp(RTNLGRP_IPV4_NETCONF);
	187	groups \|= nl_mgrp(RTNLGRP_IPV6_NETCONF);
2dd5909d ND	188	groups \|= nl_mgrp(RTNLGRP_IPV4_RULE);
2dd5909d ND	189	groups \|= nl_mgrp(RTNLGRP_IPV6_RULE);
d652ccbf	190	groups \|= nl_mgrp(RTNLGRP_NSID);
76f7d89d	191	groups \|= nl_mgrp(RTNLGRP_MPLS_NETCONF);
6fcabac5	192
fc57a9df	193	rtnl_close(&rth);
aba5acdf SH	194
	195	while (argc > 0) {
	196	if (matches(*argv, "file") == 0) {
	197	NEXT_ARG();
	198	file = *argv;
488c41d2 MS	199	} else if (matches(*argv, "label") == 0) {
488c41d2 MS	200	prefix_banner = 1;
aba5acdf	201	} else if (matches(*argv, "link") == 0) {
56f5daac	202	llink = 1;
aba5acdf SH	203	groups = 0;
aba5acdf SH	204	} else if (matches(*argv, "address") == 0) {
56f5daac	205	laddr = 1;
aba5acdf SH	206	groups = 0;
aba5acdf SH	207	} else if (matches(*argv, "route") == 0) {
56f5daac	208	lroute = 1;
aba5acdf	209	groups = 0;
e34d3dcc	210	} else if (matches(*argv, "mroute") == 0) {
56f5daac	211	lmroute = 1;
e34d3dcc	212	groups = 0;
1cb54e58	213	} else if (matches(*argv, "prefix") == 0) {
56f5daac	214	lprefix = 1;
1cb54e58	215	groups = 0;
fb063322	216	} else if (matches(*argv, "neigh") == 0) {
6cdbf370 AH	217	lneigh = 1;
6cdbf370 AH	218	groups = 0;
9d0efc10 ND	219	} else if (matches(*argv, "netconf") == 0) {
	220	lnetconf = 1;
	221	groups = 0;
2dd5909d ND	222	} else if (matches(*argv, "rule") == 0) {
	223	lrule = 1;
	224	groups = 0;
d652ccbf ND	225	} else if (matches(*argv, "nsid") == 0) {
	226	lnsid = 1;
	227	groups = 0;
aba5acdf	228	} else if (strcmp(*argv, "all") == 0) {
56f5daac	229	prefix_banner = 1;
a9390c92 RP	230	} else if (matches(*argv, "all-nsid") == 0) {
a9390c92 RP	231	listen_all_nsid = 1;
aba5acdf SH	232	} else if (matches(*argv, "help") == 0) {
aba5acdf SH	233	usage();
093b7646	234	} else if (strcmp(*argv, "dev") == 0) {
	235	NEXT_ARG();
	236
	237	ifindex = ll_name_to_index(*argv);
	238	if (!ifindex)
	239	invarg("Device does not exist\n", *argv);
aba5acdf SH	240	} else {
	241	fprintf(stderr, "Argument \"%s\" is unknown, try \"ip monitor help\".\n", *argv);
	242	exit(-1);
	243	}
	244	argc--; argv++;
	245	}
	246
093b7646	247	ipaddr_reset_filter(1, ifindex);
	248	iproute_reset_filter(ifindex);
	249	ipmroute_reset_filter(ifindex);
	250	ipneigh_reset_filter(ifindex);
	251	ipnetconf_reset_filter(ifindex);
	252
aba5acdf	253	if (llink)
b64f58b0	254	groups \|= nl_mgrp(RTNLGRP_LINK);
aba5acdf SH	255	if (laddr) {
aba5acdf SH	256	if (!preferred_family \|\| preferred_family == AF_INET)
b64f58b0	257	groups \|= nl_mgrp(RTNLGRP_IPV4_IFADDR);
aba5acdf	258	if (!preferred_family \|\| preferred_family == AF_INET6)
b64f58b0	259	groups \|= nl_mgrp(RTNLGRP_IPV6_IFADDR);
aba5acdf SH	260	}
	261	if (lroute) {
	262	if (!preferred_family \|\| preferred_family == AF_INET)
b64f58b0	263	groups \|= nl_mgrp(RTNLGRP_IPV4_ROUTE);
aba5acdf	264	if (!preferred_family \|\| preferred_family == AF_INET6)
b64f58b0	265	groups \|= nl_mgrp(RTNLGRP_IPV6_ROUTE);
dacc5d41 EB	266	if (!preferred_family \|\| preferred_family == AF_MPLS)
dacc5d41 EB	267	groups \|= nl_mgrp(RTNLGRP_MPLS_ROUTE);
aba5acdf	268	}
e34d3dcc ND	269	if (lmroute) {
	270	if (!preferred_family \|\| preferred_family == AF_INET)
	271	groups \|= nl_mgrp(RTNLGRP_IPV4_MROUTE);
	272	if (!preferred_family \|\| preferred_family == AF_INET6)
	273	groups \|= nl_mgrp(RTNLGRP_IPV6_MROUTE);
	274	}
1cb54e58	275	if (lprefix) {
1cb54e58	276	if (!preferred_family \|\| preferred_family == AF_INET6)
b64f58b0	277	groups \|= nl_mgrp(RTNLGRP_IPV6_PREFIX);
1cb54e58	278	}
fb063322 VC	279	if (lneigh) {
	280	groups \|= nl_mgrp(RTNLGRP_NEIGH);
	281	}
9d0efc10 ND	282	if (lnetconf) {
	283	if (!preferred_family \|\| preferred_family == AF_INET)
	284	groups \|= nl_mgrp(RTNLGRP_IPV4_NETCONF);
	285	if (!preferred_family \|\| preferred_family == AF_INET6)
	286	groups \|= nl_mgrp(RTNLGRP_IPV6_NETCONF);
76f7d89d DA	287	if (!preferred_family \|\| preferred_family == AF_MPLS)
76f7d89d DA	288	groups \|= nl_mgrp(RTNLGRP_MPLS_NETCONF);
9d0efc10	289	}
2dd5909d ND	290	if (lrule) {
	291	if (!preferred_family \|\| preferred_family == AF_INET)
	292	groups \|= nl_mgrp(RTNLGRP_IPV4_RULE);
	293	if (!preferred_family \|\| preferred_family == AF_INET6)
	294	groups \|= nl_mgrp(RTNLGRP_IPV6_RULE);
	295	}
d652ccbf ND	296	if (lnsid) {
	297	groups \|= nl_mgrp(RTNLGRP_NSID);
	298	}
aba5acdf SH	299	if (file) {
aba5acdf SH	300	FILE *fp;
e49b51d6 SH	301	int err;
e49b51d6 SH	302
aba5acdf SH	303	fp = fopen(file, "r");
	304	if (fp == NULL) {
	305	perror("Cannot fopen");
	306	exit(-1);
	307	}
e49b51d6 SH	308	err = rtnl_from_file(fp, accept_msg, stdout);
	309	fclose(fp);
	310	return err;
aba5acdf SH	311	}
aba5acdf SH	312
fc57a9df SH	313	if (rtnl_open(&rth, groups) < 0)
fc57a9df SH	314	exit(1);
449b824a ND	315	if (listen_all_nsid && rtnl_listen_all_nsid(&rth) < 0)
	316	exit(1);
	317
aba5acdf	318	ll_init_map(&rth);
e29a8e05	319	netns_nsid_socket_init();
d652ccbf	320	netns_map_init();
aba5acdf	321
fc57a9df	322	if (rtnl_listen(&rth, accept_msg, stdout) < 0)
aba5acdf SH	323	exit(2);
aba5acdf SH	324
351efcde	325	return 0;
aba5acdf	326	}