[mirror_iproute2.git] / bridge / fdb.c

/*
 * Get/set/delete fdb table with netlink
 *
 * TODO: merge/replace this with ip neighbour
 *
 * Authors:	Stephen Hemminger <shemminger@vyatta.com>
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <netdb.h>
#include <time.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <net/if.h>
#include <netinet/in.h>
#include <linux/if_bridge.h>
#include <linux/if_ether.h>
#include <linux/neighbour.h>
#include <string.h>

#include "libnetlink.h"
#include "br_common.h"
#include "rt_names.h"
#include "utils.h"

int filter_index;

static void usage(void)
{
	fprintf(stderr, "Usage: bridge fdb { add | append | del | replace } ADDR dev DEV {self|master} [ temp ]\n"
		        "              [router] [ dst IPADDR] [ vlan VID ]\n"
		        "              [ port PORT] [ vni VNI ] [via DEV]\n");
	fprintf(stderr, "       bridge fdb {show} [ dev DEV ]\n");
	exit(-1);
}

static const char *state_n2a(unsigned s)
{
	static char buf[32];

	if (s & NUD_PERMANENT)
		return "permanent";

	if (s & NUD_NOARP)
		return "static";

	if (s & NUD_STALE)
		return "stale";

	if (s & NUD_REACHABLE)
		return "";

	sprintf(buf, "state=%#x", s);
	return buf;
}

int print_fdb(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
	FILE *fp = arg;
	struct ndmsg *r = NLMSG_DATA(n);
	int len = n->nlmsg_len;
	struct rtattr * tb[NDA_MAX+1];

	if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH) {
		fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n",
			n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);

		return 0;
	}

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

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

	if (filter_index && filter_index != r->ndm_ifindex)
		return 0;

	parse_rtattr(tb, NDA_MAX, NDA_RTA(r),
		     n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));

	if (n->nlmsg_type == RTM_DELNEIGH)
		fprintf(fp, "Deleted ");

	if (tb[NDA_LLADDR]) {
		SPRINT_BUF(b1);
		fprintf(fp, "%s ",
			ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
				    RTA_PAYLOAD(tb[NDA_LLADDR]),
				    ll_index_to_type(r->ndm_ifindex),
				    b1, sizeof(b1)));
	}

	if (!filter_index && r->ndm_ifindex)
		fprintf(fp, "dev %s ", ll_index_to_name(r->ndm_ifindex));

	if (tb[NDA_DST]) {
		SPRINT_BUF(abuf);
		fprintf(fp, "dst %s ",
			format_host(AF_INET,
				    RTA_PAYLOAD(tb[NDA_DST]),
				    RTA_DATA(tb[NDA_DST]),
				    abuf, sizeof(abuf)));
	}

	if (tb[NDA_VLAN]) {
		__u16 vid = rta_getattr_u16(tb[NDA_VLAN]);
		fprintf(fp, "vlan %hu ", vid);
	}

	if (tb[NDA_PORT])
		fprintf(fp, "port %d ", ntohs(rta_getattr_u16(tb[NDA_PORT])));
	if (tb[NDA_VNI])
		fprintf(fp, "vni %d ", rta_getattr_u32(tb[NDA_VNI]));
	if (tb[NDA_IFINDEX]) {
		unsigned int ifindex = rta_getattr_u32(tb[NDA_IFINDEX]);

		if (ifindex) {
			char ifname[IF_NAMESIZE];

			if (if_indextoname(ifindex, ifname))
				fprintf(fp, "via %s ", ifname);
			else
				fprintf(fp, "via ifindex %u ", ifindex);
		}
	}

	if (show_stats && tb[NDA_CACHEINFO]) {
		struct nda_cacheinfo *ci = RTA_DATA(tb[NDA_CACHEINFO]);
		int hz = get_user_hz();

		fprintf(fp, " used %d/%d", ci->ndm_used/hz,
		       ci->ndm_updated/hz);
	}
	if (r->ndm_flags & NTF_SELF)
		fprintf(fp, "self ");
	if (r->ndm_flags & NTF_MASTER)
		fprintf(fp, "master ");
	if (r->ndm_flags & NTF_ROUTER)
		fprintf(fp, "router ");

	fprintf(fp, "%s\n", state_n2a(r->ndm_state));
	return 0;
}

static int fdb_show(int argc, char **argv)
{
	char *filter_dev = NULL;

	while (argc > 0) {
		if (strcmp(*argv, "dev") == 0) {
			NEXT_ARG();
			if (filter_dev)
				duparg("dev", *argv);
			filter_dev = *argv;
		}
		argc--; argv++;
	}

	if (filter_dev) {
		filter_index = if_nametoindex(filter_dev);
		if (filter_index == 0) {
			fprintf(stderr, "Cannot find device \"%s\"\n",
				filter_dev);
			return -1;
		}
	}

	if (rtnl_wilddump_request(&rth, PF_BRIDGE, RTM_GETNEIGH) < 0) {
		perror("Cannot send dump request");
		exit(1);
	}

	if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) {
		fprintf(stderr, "Dump terminated\n");
		exit(1);
	}

	return 0;
}

static int fdb_modify(int cmd, int flags, int argc, char **argv)
{
	struct {
		struct nlmsghdr 	n;
		struct ndmsg 		ndm;
		char   			buf[256];
	} req;
	char *addr = NULL;
	char *d = NULL;
	char abuf[ETH_ALEN];
	int dst_ok = 0;
	inet_prefix dst;
	unsigned long port = 0;
	unsigned long vni = ~0;
	unsigned int via = 0;
	char *endptr;
	short vid = -1;

	memset(&req, 0, sizeof(req));

	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg));
	req.n.nlmsg_flags = NLM_F_REQUEST|flags;
	req.n.nlmsg_type = cmd;
	req.ndm.ndm_family = PF_BRIDGE;
	req.ndm.ndm_state = NUD_NOARP;

	while (argc > 0) {
		if (strcmp(*argv, "dev") == 0) {
			NEXT_ARG();
			d = *argv;
		} else if (strcmp(*argv, "dst") == 0) {
			NEXT_ARG();
			if (dst_ok)
				duparg2("dst", *argv);
			get_addr(&dst, *argv, preferred_family);
			dst_ok = 1;
		} else if (strcmp(*argv, "port") == 0) {

			NEXT_ARG();
			port = strtoul(*argv, &endptr, 0);
			if (endptr && *endptr) {
				struct servent *pse;

				pse = getservbyname(*argv, "udp");
				if (!pse)
					invarg("invalid port\n", *argv);
				port = ntohs(pse->s_port);
			} else if (port > 0xffff)
				invarg("invalid port\n", *argv);
		} else if (strcmp(*argv, "vni") == 0) {
			NEXT_ARG();
			vni = strtoul(*argv, &endptr, 0);
			if ((endptr && *endptr) ||
			    (vni >> 24) || vni == ULONG_MAX)
				invarg("invalid VNI\n", *argv);
		} else if (strcmp(*argv, "via") == 0) {
			NEXT_ARG();
			via = if_nametoindex(*argv);
			if (via == 0)
				invarg("invalid device\n", *argv);
		} else if (strcmp(*argv, "self") == 0) {
			req.ndm.ndm_flags |= NTF_SELF;
		} else if (matches(*argv, "master") == 0) {
			req.ndm.ndm_flags |= NTF_MASTER;
		} else if (matches(*argv, "router") == 0) {
			req.ndm.ndm_flags |= NTF_ROUTER;
		} else if (matches(*argv, "local") == 0||
			   matches(*argv, "permanent") == 0) {
			req.ndm.ndm_state |= NUD_PERMANENT;
		} else if (matches(*argv, "temp") == 0) {
			req.ndm.ndm_state |= NUD_REACHABLE;
		} else if (matches(*argv, "vlan") == 0) {
			if (vid >= 0)
				duparg2("vlan", *argv);
			NEXT_ARG();
			vid = atoi(*argv);
		} else {
			if (strcmp(*argv, "to") == 0) {
				NEXT_ARG();
			}
			if (matches(*argv, "help") == 0)
				usage();
			if (addr)
				duparg2("to", *argv);
			addr = *argv;
		}
		argc--; argv++;
	}

	if (d == NULL || addr == NULL) {
		fprintf(stderr, "Device and address are required arguments.\n");
		exit(-1);
	}

	/* Assume self */
	if (!(req.ndm.ndm_flags&(NTF_SELF|NTF_MASTER)))
		req.ndm.ndm_flags |= NTF_SELF;

	/* Assume permanent */
	if (!(req.ndm.ndm_state&(NUD_PERMANENT|NUD_REACHABLE)))
		req.ndm.ndm_state |= NUD_PERMANENT;

	if (sscanf(addr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
		   abuf, abuf+1, abuf+2,
		   abuf+3, abuf+4, abuf+5) != 6) {
		fprintf(stderr, "Invalid mac address %s\n", addr);
		exit(-1);
	}

	addattr_l(&req.n, sizeof(req), NDA_LLADDR, abuf, ETH_ALEN);
	if (dst_ok)
		addattr_l(&req.n, sizeof(req), NDA_DST, &dst.data, dst.bytelen);

	if (vid >= 0)
		addattr16(&req.n, sizeof(req), NDA_VLAN, vid);

	if (port) {
		unsigned short dport;

		dport = htons((unsigned short)port);
		addattr16(&req.n, sizeof(req), NDA_PORT, dport);
	}
	if (vni != ~0)
		addattr32(&req.n, sizeof(req), NDA_VNI, vni);
	if (via)
		addattr32(&req.n, sizeof(req), NDA_IFINDEX, via);

	req.ndm.ndm_ifindex = ll_name_to_index(d);
	if (req.ndm.ndm_ifindex == 0) {
		fprintf(stderr, "Cannot find device \"%s\"\n", d);
		return -1;
	}

	if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
		exit(2);

	return 0;
}

int do_fdb(int argc, char **argv)
{
	ll_init_map(&rth);

	if (argc > 0) {
		if (matches(*argv, "add") == 0)
			return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
		if (matches(*argv, "append") == 0)
			return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE|NLM_F_APPEND, argc-1, argv+1);
		if (matches(*argv, "replace") == 0)
			return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
		if (matches(*argv, "delete") == 0)
			return fdb_modify(RTM_DELNEIGH, 0, argc-1, argv+1);
		if (matches(*argv, "show") == 0 ||
		    matches(*argv, "lst") == 0 ||
		    matches(*argv, "list") == 0)
			return fdb_show(argc-1, argv+1);
		if (matches(*argv, "help") == 0)
			usage();
	} else
		return fdb_show(0, NULL);

	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv);
	exit(-1);
}
Commit	Line	Data
d04bc300 SH	1	/*
	2	* Get/set/delete fdb table with netlink
	3	*
0849e60a SH	4	* TODO: merge/replace this with ip neighbour
0849e60a SH	5	*
d04bc300 SH	6	* Authors: Stephen Hemminger <shemminger@vyatta.com>
	7	*/
	8
	9	#include <stdio.h>
	10	#include <stdlib.h>
	11	#include <unistd.h>
5f409678	12	#include <netdb.h>
d04bc300 SH	13	#include <time.h>
	14	#include <fcntl.h>
	15	#include <sys/socket.h>
	16	#include <sys/time.h>
	17	#include <net/if.h>
	18	#include <netinet/in.h>
	19	#include <linux/if_bridge.h>
	20	#include <linux/if_ether.h>
	21	#include <linux/neighbour.h>
	22	#include <string.h>
	23
	24	#include "libnetlink.h"
	25	#include "br_common.h"
0849e60a	26	#include "rt_names.h"
d04bc300 SH	27	#include "utils.h"
	28
	29	int filter_index;
	30
	31	static void usage(void)
	32	{
5464049b	33	fprintf(stderr, "Usage: bridge fdb { add \| append \| del \| replace } ADDR dev DEV {self\|master} [ temp ]\n"
7578ae88	34	" [router] [ dst IPADDR] [ vlan VID ]\n"
5f409678	35	" [ port PORT] [ vni VNI ] [via DEV]\n");
90698170	36	fprintf(stderr, " bridge fdb {show} [ dev DEV ]\n");
d04bc300 SH	37	exit(-1);
	38	}
	39
	40	static const char *state_n2a(unsigned s)
	41	{
	42	static char buf[32];
	43
0849e60a SH	44	if (s & NUD_PERMANENT)
0849e60a SH	45	return "permanent";
d04bc300 SH	46
	47	if (s & NUD_NOARP)
	48	return "static";
	49
	50	if (s & NUD_STALE)
	51	return "stale";
0849e60a	52
d04bc300 SH	53	if (s & NUD_REACHABLE)
	54	return "";
	55
	56	sprintf(buf, "state=%#x", s);
	57	return buf;
	58	}
	59
d04bc300 SH	60	int print_fdb(const struct sockaddr_nl who, struct nlmsghdr n, void *arg)
d04bc300 SH	61	{
0849e60a	62	FILE *fp = arg;
d04bc300 SH	63	struct ndmsg *r = NLMSG_DATA(n);
	64	int len = n->nlmsg_len;
	65	struct rtattr * tb[NDA_MAX+1];
0849e60a SH	66
	67	if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH) {
	68	fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n",
	69	n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
	70
	71	return 0;
	72	}
d04bc300 SH	73
	74	len -= NLMSG_LENGTH(sizeof(*r));
	75	if (len < 0) {
	76	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	77	return -1;
	78	}
	79
	80	if (r->ndm_family != AF_BRIDGE)
	81	return 0;
	82
	83	if (filter_index && filter_index != r->ndm_ifindex)
	84	return 0;
	85
	86	parse_rtattr(tb, NDA_MAX, NDA_RTA(r),
	87	n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
	88
	89	if (n->nlmsg_type == RTM_DELNEIGH)
0849e60a SH	90	fprintf(fp, "Deleted ");
	91
	92	if (tb[NDA_LLADDR]) {
	93	SPRINT_BUF(b1);
	94	fprintf(fp, "%s ",
	95	ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
	96	RTA_PAYLOAD(tb[NDA_LLADDR]),
	97	ll_index_to_type(r->ndm_ifindex),
	98	b1, sizeof(b1)));
d04bc300	99	}
38df7ac9	100
0849e60a SH	101	if (!filter_index && r->ndm_ifindex)
	102	fprintf(fp, "dev %s ", ll_index_to_name(r->ndm_ifindex));
	103
	104	if (tb[NDA_DST]) {
	105	SPRINT_BUF(abuf);
	106	fprintf(fp, "dst %s ",
	107	format_host(AF_INET,
	108	RTA_PAYLOAD(tb[NDA_DST]),
	109	RTA_DATA(tb[NDA_DST]),
	110	abuf, sizeof(abuf)));
	111	}
38df7ac9	112
fd08839c VY	113	if (tb[NDA_VLAN]) {
	114	__u16 vid = rta_getattr_u16(tb[NDA_VLAN]);
	115	fprintf(fp, "vlan %hu ", vid);
	116	}
	117
5f409678 DS	118	if (tb[NDA_PORT])
	119	fprintf(fp, "port %d ", ntohs(rta_getattr_u16(tb[NDA_PORT])));
	120	if (tb[NDA_VNI])
	121	fprintf(fp, "vni %d ", rta_getattr_u32(tb[NDA_VNI]));
	122	if (tb[NDA_IFINDEX]) {
	123	unsigned int ifindex = rta_getattr_u32(tb[NDA_IFINDEX]);
	124
	125	if (ifindex) {
	126	char ifname[IF_NAMESIZE];
	127
	128	if (if_indextoname(ifindex, ifname))
	129	fprintf(fp, "via %s ", ifname);
	130	else
	131	fprintf(fp, "via ifindex %u ", ifindex);
	132	}
	133	}
	134
d04bc300 SH	135	if (show_stats && tb[NDA_CACHEINFO]) {
d04bc300 SH	136	struct nda_cacheinfo *ci = RTA_DATA(tb[NDA_CACHEINFO]);
0849e60a	137	int hz = get_user_hz();
d04bc300	138
0849e60a SH	139	fprintf(fp, " used %d/%d", ci->ndm_used/hz,
0849e60a SH	140	ci->ndm_updated/hz);
d04bc300	141	}
0849e60a SH	142	if (r->ndm_flags & NTF_SELF)
	143	fprintf(fp, "self ");
	144	if (r->ndm_flags & NTF_MASTER)
	145	fprintf(fp, "master ");
5b8a1d4a DS	146	if (r->ndm_flags & NTF_ROUTER)
5b8a1d4a DS	147	fprintf(fp, "router ");
d04bc300	148
0849e60a	149	fprintf(fp, "%s\n", state_n2a(r->ndm_state));
d04bc300 SH	150	return 0;
	151	}
	152
	153	static int fdb_show(int argc, char **argv)
	154	{
	155	char *filter_dev = NULL;
0849e60a	156
d04bc300 SH	157	while (argc > 0) {
	158	if (strcmp(*argv, "dev") == 0) {
	159	NEXT_ARG();
	160	if (filter_dev)
	161	duparg("dev", *argv);
	162	filter_dev = *argv;
	163	}
	164	argc--; argv++;
	165	}
	166
	167	if (filter_dev) {
0849e60a SH	168	filter_index = if_nametoindex(filter_dev);
	169	if (filter_index == 0) {
	170	fprintf(stderr, "Cannot find device \"%s\"\n",
	171	filter_dev);
d04bc300 SH	172	return -1;
	173	}
	174	}
	175
	176	if (rtnl_wilddump_request(&rth, PF_BRIDGE, RTM_GETNEIGH) < 0) {
	177	perror("Cannot send dump request");
	178	exit(1);
	179	}
d04bc300	180
0849e60a	181	if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) {
d04bc300 SH	182	fprintf(stderr, "Dump terminated\n");
	183	exit(1);
	184	}
	185
	186	return 0;
	187	}
	188
	189	static int fdb_modify(int cmd, int flags, int argc, char **argv)
	190	{
	191	struct {
	192	struct nlmsghdr n;
	193	struct ndmsg ndm;
	194	char buf[256];
	195	} req;
	196	char *addr = NULL;
	197	char *d = NULL;
	198	char abuf[ETH_ALEN];
0849e60a SH	199	int dst_ok = 0;
0849e60a SH	200	inet_prefix dst;
5f409678 DS	201	unsigned long port = 0;
	202	unsigned long vni = ~0;
	203	unsigned int via = 0;
	204	char *endptr;
fd08839c	205	short vid = -1;
d04bc300 SH	206
	207	memset(&req, 0, sizeof(req));
	208
	209	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg));
	210	req.n.nlmsg_flags = NLM_F_REQUEST\|flags;
	211	req.n.nlmsg_type = cmd;
	212	req.ndm.ndm_family = PF_BRIDGE;
	213	req.ndm.ndm_state = NUD_NOARP;
	214
	215	while (argc > 0) {
	216	if (strcmp(*argv, "dev") == 0) {
	217	NEXT_ARG();
	218	d = *argv;
0849e60a SH	219	} else if (strcmp(*argv, "dst") == 0) {
	220	NEXT_ARG();
	221	if (dst_ok)
	222	duparg2("dst", *argv);
	223	get_addr(&dst, *argv, preferred_family);
	224	dst_ok = 1;
5f409678 DS	225	} else if (strcmp(*argv, "port") == 0) {
	226
	227	NEXT_ARG();
	228	port = strtoul(*argv, &endptr, 0);
	229	if (endptr && *endptr) {
	230	struct servent *pse;
	231
	232	pse = getservbyname(*argv, "udp");
	233	if (!pse)
	234	invarg("invalid port\n", *argv);
	235	port = ntohs(pse->s_port);
	236	} else if (port > 0xffff)
	237	invarg("invalid port\n", *argv);
	238	} else if (strcmp(*argv, "vni") == 0) {
	239	NEXT_ARG();
	240	vni = strtoul(*argv, &endptr, 0);
	241	if ((endptr && *endptr) \|\|
	242	(vni >> 24) \|\| vni == ULONG_MAX)
	243	invarg("invalid VNI\n", *argv);
	244	} else if (strcmp(*argv, "via") == 0) {
	245	NEXT_ARG();
	246	via = if_nametoindex(*argv);
	247	if (via == 0)
	248	invarg("invalid device\n", *argv);
dc6a6a25 JF	249	} else if (strcmp(*argv, "self") == 0) {
dc6a6a25 JF	250	req.ndm.ndm_flags \|= NTF_SELF;
0849e60a	251	} else if (matches(*argv, "master") == 0) {
dc6a6a25	252	req.ndm.ndm_flags \|= NTF_MASTER;
5b8a1d4a DS	253	} else if (matches(*argv, "router") == 0) {
5b8a1d4a DS	254	req.ndm.ndm_flags \|= NTF_ROUTER;
38df7ac9	255	} else if (matches(*argv, "local") == 0\|\|
0849e60a SH	256	matches(*argv, "permanent") == 0) {
	257	req.ndm.ndm_state \|= NUD_PERMANENT;
	258	} else if (matches(*argv, "temp") == 0) {
	259	req.ndm.ndm_state \|= NUD_REACHABLE;
fd08839c VY	260	} else if (matches(*argv, "vlan") == 0) {
	261	if (vid >= 0)
	262	duparg2("vlan", *argv);
	263	NEXT_ARG();
	264	vid = atoi(*argv);
d04bc300 SH	265	} else {
	266	if (strcmp(*argv, "to") == 0) {
	267	NEXT_ARG();
	268	}
0849e60a SH	269	if (matches(*argv, "help") == 0)
0849e60a SH	270	usage();
d04bc300 SH	271	if (addr)
	272	duparg2("to", *argv);
	273	addr = *argv;
	274	}
	275	argc--; argv++;
	276	}
	277
	278	if (d == NULL \|\| addr == NULL) {
	279	fprintf(stderr, "Device and address are required arguments.\n");
	280	exit(-1);
	281	}
	282
0849e60a SH	283	/* Assume self */
	284	if (!(req.ndm.ndm_flags&(NTF_SELF\|NTF_MASTER)))
	285	req.ndm.ndm_flags \|= NTF_SELF;
	286
	287	/* Assume permanent */
	288	if (!(req.ndm.ndm_state&(NUD_PERMANENT\|NUD_REACHABLE)))
	289	req.ndm.ndm_state \|= NUD_PERMANENT;
	290
	291	if (sscanf(addr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
d04bc300 SH	292	abuf, abuf+1, abuf+2,
	293	abuf+3, abuf+4, abuf+5) != 6) {
	294	fprintf(stderr, "Invalid mac address %s\n", addr);
	295	exit(-1);
	296	}
	297
	298	addattr_l(&req.n, sizeof(req), NDA_LLADDR, abuf, ETH_ALEN);
0849e60a SH	299	if (dst_ok)
0849e60a SH	300	addattr_l(&req.n, sizeof(req), NDA_DST, &dst.data, dst.bytelen);
d04bc300	301
fd08839c	302	if (vid >= 0)
8ae66094	303	addattr16(&req.n, sizeof(req), NDA_VLAN, vid);
fd08839c	304
5f409678 DS	305	if (port) {
	306	unsigned short dport;
	307
	308	dport = htons((unsigned short)port);
	309	addattr16(&req.n, sizeof(req), NDA_PORT, dport);
	310	}
	311	if (vni != ~0)
	312	addattr32(&req.n, sizeof(req), NDA_VNI, vni);
	313	if (via)
	314	addattr32(&req.n, sizeof(req), NDA_IFINDEX, via);
	315
d04bc300 SH	316	req.ndm.ndm_ifindex = ll_name_to_index(d);
	317	if (req.ndm.ndm_ifindex == 0) {
	318	fprintf(stderr, "Cannot find device \"%s\"\n", d);
	319	return -1;
	320	}
	321
	322	if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
	323	exit(2);
	324
	325	return 0;
	326	}
	327
	328	int do_fdb(int argc, char **argv)
	329	{
	330	ll_init_map(&rth);
	331
	332	if (argc > 0) {
	333	if (matches(*argv, "add") == 0)
	334	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_EXCL, argc-1, argv+1);
5f409678 DS	335	if (matches(*argv, "append") == 0)
5f409678 DS	336	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_APPEND, argc-1, argv+1);
5464049b TR	337	if (matches(*argv, "replace") == 0)
5464049b TR	338	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_REPLACE, argc-1, argv+1);
d04bc300 SH	339	if (matches(*argv, "delete") == 0)
	340	return fdb_modify(RTM_DELNEIGH, 0, argc-1, argv+1);
	341	if (matches(*argv, "show") == 0 \|\|
	342	matches(*argv, "lst") == 0 \|\|
	343	matches(*argv, "list") == 0)
	344	return fdb_show(argc-1, argv+1);
	345	if (matches(*argv, "help") == 0)
	346	usage();
	347	} else
	348	return fdb_show(0, NULL);
	349
083b46bb	350	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv);
d04bc300 SH	351	exit(-1);
d04bc300 SH	352	}