[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;

	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(who, n, arg);
			return 0;
		} else {
			print_headers(fp, "[ROUTE]", ctrl);
			print_route(who, n, arg);
			return 0;
		}
	}

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

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

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

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

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

	case RTM_DELNSID:
	case RTM_NEWNSID:
		print_headers(fp, "[NSID]", ctrl);
		print_nsid(who, 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
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	60
40443f49 SH	61	switch (n->nlmsg_type) {
	62	case RTM_NEWROUTE:
	63	case RTM_DELROUTE: {
e34d3dcc ND	64	struct rtmsg *r = NLMSG_DATA(n);
	65	int len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*r));
	66
	67	if (len < 0) {
	68	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	69	return -1;
	70	}
	71
2271779d	72	if (r->rtm_flags & RTM_F_CLONED)
	73	return 0;
	74
e34d3dcc ND	75	if (r->rtm_family == RTNL_FAMILY_IPMR \|\|
e34d3dcc ND	76	r->rtm_family == RTNL_FAMILY_IP6MR) {
449b824a	77	print_headers(fp, "[MROUTE]", ctrl);
e34d3dcc ND	78	print_mroute(who, n, arg);
	79	return 0;
	80	} else {
449b824a	81	print_headers(fp, "[ROUTE]", ctrl);
e34d3dcc ND	82	print_route(who, n, arg);
	83	return 0;
	84	}
aba5acdf	85	}
2271779d	86
40443f49 SH	87	case RTM_NEWLINK:
40443f49 SH	88	case RTM_DELLINK:
aba5acdf	89	ll_remember_index(who, n, NULL);
449b824a	90	print_headers(fp, "[LINK]", ctrl);
aba5acdf SH	91	print_linkinfo(who, n, arg);
aba5acdf SH	92	return 0;
40443f49 SH	93
	94	case RTM_NEWADDR:
	95	case RTM_DELADDR:
449b824a	96	print_headers(fp, "[ADDR]", ctrl);
aba5acdf SH	97	print_addrinfo(who, n, arg);
aba5acdf SH	98	return 0;
40443f49 SH	99
	100	case RTM_NEWADDRLABEL:
	101	case RTM_DELADDRLABEL:
449b824a	102	print_headers(fp, "[ADDRLABEL]", ctrl);
4759758c YH	103	print_addrlabel(who, n, arg);
4759758c YH	104	return 0;
40443f49 SH	105
	106	case RTM_NEWNEIGH:
	107	case RTM_DELNEIGH:
	108	case RTM_GETNEIGH:
00185653 SH	109	if (preferred_family) {
	110	struct ndmsg *r = NLMSG_DATA(n);
	111
	112	if (r->ndm_family != preferred_family)
	113	return 0;
	114	}
	115
449b824a	116	print_headers(fp, "[NEIGH]", ctrl);
aba5acdf SH	117	print_neigh(who, n, arg);
aba5acdf SH	118	return 0;
40443f49 SH	119
40443f49 SH	120	case RTM_NEWPREFIX:
449b824a	121	print_headers(fp, "[PREFIX]", ctrl);
1cb54e58	122	print_prefix(who, n, arg);
1cb54e58	123	return 0;
40443f49 SH	124
	125	case RTM_NEWRULE:
	126	case RTM_DELRULE:
449b824a	127	print_headers(fp, "[RULE]", ctrl);
98bde989 TG	128	print_rule(who, n, arg);
98bde989 TG	129	return 0;
40443f49 SH	130
	131	case NLMSG_TSTAMP:
	132	print_nlmsg_timestamp(fp, n);
	133	return 0;
	134
	135	case RTM_NEWNETCONF:
e09d21f6	136	case RTM_DELNETCONF:
449b824a	137	print_headers(fp, "[NETCONF]", ctrl);
0628cddd	138	print_netconf(who, ctrl, n, arg);
9d0efc10	139	return 0;
40443f49 SH	140
	141	case RTM_DELNSID:
	142	case RTM_NEWNSID:
449b824a	143	print_headers(fp, "[NSID]", ctrl);
d652ccbf ND	144	print_nsid(who, n, arg);
d652ccbf ND	145	return 0;
40443f49 SH	146
	147	case NLMSG_ERROR:
	148	case NLMSG_NOOP:
	149	case NLMSG_DONE:
	150	break; /* ignore */
	151
	152	default:
	153	fprintf(stderr,
	154	"Unknown message: type=0x%08x(%d) flags=0x%08x(%d) len=0x%08x(%d)\n",
56f5daac	155	n->nlmsg_type, n->nlmsg_type,
40aadf8b	156	n->nlmsg_flags, n->nlmsg_flags, n->nlmsg_len,
40aadf8b	157	n->nlmsg_len);
aba5acdf SH	158	}
	159	return 0;
	160	}
	161
	162	int do_ipmonitor(int argc, char **argv)
	163	{
aba5acdf	164	char *file = NULL;
56f5daac SH	165	unsigned int groups = 0;
	166	int llink = 0;
	167	int laddr = 0;
	168	int lroute = 0;
	169	int lmroute = 0;
	170	int lprefix = 0;
	171	int lneigh = 0;
	172	int lnetconf = 0;
	173	int lrule = 0;
	174	int lnsid = 0;
	175	int ifindex = 0;
aba5acdf	176
6fcabac5	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);
dacc5d41	182	groups \|= nl_mgrp(RTNLGRP_MPLS_ROUTE);
6fcabac5	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);
2dd5909d ND	189	groups \|= nl_mgrp(RTNLGRP_IPV4_RULE);
2dd5909d ND	190	groups \|= nl_mgrp(RTNLGRP_IPV6_RULE);
d652ccbf	191	groups \|= nl_mgrp(RTNLGRP_NSID);
76f7d89d	192	groups \|= nl_mgrp(RTNLGRP_MPLS_NETCONF);
6fcabac5	193
fc57a9df	194	rtnl_close(&rth);
aba5acdf SH	195
	196	while (argc > 0) {
	197	if (matches(*argv, "file") == 0) {
	198	NEXT_ARG();
	199	file = *argv;
488c41d2 MS	200	} else if (matches(*argv, "label") == 0) {
488c41d2 MS	201	prefix_banner = 1;
aba5acdf	202	} else if (matches(*argv, "link") == 0) {
56f5daac	203	llink = 1;
aba5acdf SH	204	groups = 0;
aba5acdf SH	205	} else if (matches(*argv, "address") == 0) {
56f5daac	206	laddr = 1;
aba5acdf SH	207	groups = 0;
aba5acdf SH	208	} else if (matches(*argv, "route") == 0) {
56f5daac	209	lroute = 1;
aba5acdf	210	groups = 0;
e34d3dcc	211	} else if (matches(*argv, "mroute") == 0) {
56f5daac	212	lmroute = 1;
e34d3dcc	213	groups = 0;
1cb54e58	214	} else if (matches(*argv, "prefix") == 0) {
56f5daac	215	lprefix = 1;
1cb54e58	216	groups = 0;
fb063322	217	} else if (matches(*argv, "neigh") == 0) {
6cdbf370 AH	218	lneigh = 1;
6cdbf370 AH	219	groups = 0;
9d0efc10 ND	220	} else if (matches(*argv, "netconf") == 0) {
	221	lnetconf = 1;
	222	groups = 0;
2dd5909d ND	223	} else if (matches(*argv, "rule") == 0) {
	224	lrule = 1;
	225	groups = 0;
d652ccbf ND	226	} else if (matches(*argv, "nsid") == 0) {
	227	lnsid = 1;
	228	groups = 0;
aba5acdf	229	} else if (strcmp(*argv, "all") == 0) {
56f5daac	230	prefix_banner = 1;
a9390c92 RP	231	} else if (matches(*argv, "all-nsid") == 0) {
a9390c92 RP	232	listen_all_nsid = 1;
aba5acdf SH	233	} else if (matches(*argv, "help") == 0) {
aba5acdf SH	234	usage();
093b7646	235	} else if (strcmp(*argv, "dev") == 0) {
	236	NEXT_ARG();
	237
	238	ifindex = ll_name_to_index(*argv);
	239	if (!ifindex)
	240	invarg("Device does not exist\n", *argv);
aba5acdf SH	241	} else {
	242	fprintf(stderr, "Argument \"%s\" is unknown, try \"ip monitor help\".\n", *argv);
	243	exit(-1);
	244	}
	245	argc--; argv++;
	246	}
	247
093b7646	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);
	253
aba5acdf	254	if (llink)
b64f58b0	255	groups \|= nl_mgrp(RTNLGRP_LINK);
aba5acdf SH	256	if (laddr) {
aba5acdf SH	257	if (!preferred_family \|\| preferred_family == AF_INET)
b64f58b0	258	groups \|= nl_mgrp(RTNLGRP_IPV4_IFADDR);
aba5acdf	259	if (!preferred_family \|\| preferred_family == AF_INET6)
b64f58b0	260	groups \|= nl_mgrp(RTNLGRP_IPV6_IFADDR);
aba5acdf SH	261	}
	262	if (lroute) {
	263	if (!preferred_family \|\| preferred_family == AF_INET)
b64f58b0	264	groups \|= nl_mgrp(RTNLGRP_IPV4_ROUTE);
aba5acdf	265	if (!preferred_family \|\| preferred_family == AF_INET6)
b64f58b0	266	groups \|= nl_mgrp(RTNLGRP_IPV6_ROUTE);
dacc5d41 EB	267	if (!preferred_family \|\| preferred_family == AF_MPLS)
dacc5d41 EB	268	groups \|= nl_mgrp(RTNLGRP_MPLS_ROUTE);
aba5acdf	269	}
e34d3dcc ND	270	if (lmroute) {
	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);
	275	}
1cb54e58	276	if (lprefix) {
1cb54e58	277	if (!preferred_family \|\| preferred_family == AF_INET6)
b64f58b0	278	groups \|= nl_mgrp(RTNLGRP_IPV6_PREFIX);
1cb54e58	279	}
fb063322 VC	280	if (lneigh) {
	281	groups \|= nl_mgrp(RTNLGRP_NEIGH);
	282	}
9d0efc10 ND	283	if (lnetconf) {
	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);
76f7d89d DA	288	if (!preferred_family \|\| preferred_family == AF_MPLS)
76f7d89d DA	289	groups \|= nl_mgrp(RTNLGRP_MPLS_NETCONF);
9d0efc10	290	}
2dd5909d ND	291	if (lrule) {
	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);
	296	}
d652ccbf ND	297	if (lnsid) {
	298	groups \|= nl_mgrp(RTNLGRP_NSID);
	299	}
aba5acdf SH	300	if (file) {
aba5acdf SH	301	FILE *fp;
e49b51d6 SH	302	int err;
e49b51d6 SH	303
aba5acdf SH	304	fp = fopen(file, "r");
	305	if (fp == NULL) {
	306	perror("Cannot fopen");
	307	exit(-1);
	308	}
e49b51d6 SH	309	err = rtnl_from_file(fp, accept_msg, stdout);
	310	fclose(fp);
	311	return err;
aba5acdf SH	312	}
aba5acdf SH	313
fc57a9df SH	314	if (rtnl_open(&rth, groups) < 0)
fc57a9df SH	315	exit(1);
449b824a ND	316	if (listen_all_nsid && rtnl_listen_all_nsid(&rth) < 0)
	317	exit(1);
	318
aba5acdf	319	ll_init_map(&rth);
e29a8e05	320	netns_nsid_socket_init();
d652ccbf	321	netns_map_init();
aba5acdf	322
fc57a9df	323	if (rtnl_listen(&rth, accept_msg, stdout) < 0)
aba5acdf SH	324	exit(2);
aba5acdf SH	325
351efcde	326	return 0;
aba5acdf	327	}