[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 <limits.h>

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

static unsigned 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} [ br BRDEV ] [ brport 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);
		int family = AF_INET;

		if (RTA_PAYLOAD(tb[NDA_DST]) == sizeof(struct in6_addr))
			family = AF_INET6;

		fprintf(fp, "dst %s ",
			format_host(family,
				    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 (!tb[NDA_LINK_NETNSID] &&
			    if_indextoname(ifindex, ifname))
				fprintf(fp, "via %s ", ifname);
			else
				fprintf(fp, "via ifindex %u ", ifindex);
		}
	}
	if (tb[NDA_LINK_NETNSID])
		fprintf(fp, "link-netnsid %d ",
			rta_getattr_u32(tb[NDA_LINK_NETNSID]));

	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 (tb[NDA_MASTER])
		fprintf(fp, "master %s ",
			ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER])));
	else if (r->ndm_flags & NTF_MASTER)
		fprintf(fp, "master ");
	if (r->ndm_flags & NTF_ROUTER)
		fprintf(fp, "router ");
	if (r->ndm_flags & NTF_EXT_LEARNED)
		fprintf(fp, "external ");

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

static int fdb_show(int argc, char **argv)
{
	struct {
		struct nlmsghdr 	n;
		struct ifinfomsg	ifm;
		char   			buf[256];
	} req;

	char *filter_dev = NULL;
	char *br = NULL;
	int msg_size = sizeof(struct ifinfomsg);

	memset(&req, 0, sizeof(req));
	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
	req.ifm.ifi_family = PF_BRIDGE;

	while (argc > 0) {
		if ((strcmp(*argv, "brport") == 0) || strcmp(*argv, "dev") == 0) {
			NEXT_ARG();
			filter_dev = *argv;
		} else if (strcmp(*argv, "br") == 0) {
			NEXT_ARG();
			br = *argv;
		} else {
			if (matches(*argv, "help") == 0)
				usage();
		}
		argc--; argv++;
	}

	if (br) {
		int br_ifindex = ll_name_to_index(br);
		if (br_ifindex == 0) {
			fprintf(stderr, "Cannot find bridge device \"%s\"\n", br);
			return -1;
		}
		addattr32(&req.n, sizeof(req), IFLA_MASTER, br_ifindex);
		msg_size += RTA_LENGTH(4);
	}

	/*we'll keep around filter_dev for older kernels */
	if (filter_dev) {
		filter_index = if_nametoindex(filter_dev);
		if (filter_index == 0) {
			fprintf(stderr, "Cannot find device \"%s\"\n",
				filter_dev);
			return -1;
		}
		req.ifm.ifi_index = filter_index;
	}

	if (rtnl_dump_request(&rth, RTM_GETNEIGH, &req.ifm, msg_size) < 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>
dd9cc0ee	23	#include <limits.h>
d04bc300 SH	24
	25	#include "libnetlink.h"
	26	#include "br_common.h"
0849e60a	27	#include "rt_names.h"
d04bc300 SH	28	#include "utils.h"
d04bc300 SH	29
9dca899b	30	static unsigned int filter_index;
d04bc300 SH	31
	32	static void usage(void)
	33	{
5464049b	34	fprintf(stderr, "Usage: bridge fdb { add \| append \| del \| replace } ADDR dev DEV {self\|master} [ temp ]\n"
7578ae88	35	" [router] [ dst IPADDR] [ vlan VID ]\n"
5f409678	36	" [ port PORT] [ vni VNI ] [via DEV]\n");
aeb14eb0	37	fprintf(stderr, " bridge fdb {show} [ br BRDEV ] [ brport DEV ]\n");
d04bc300 SH	38	exit(-1);
	39	}
	40
	41	static const char *state_n2a(unsigned s)
	42	{
	43	static char buf[32];
	44
0849e60a SH	45	if (s & NUD_PERMANENT)
0849e60a SH	46	return "permanent";
d04bc300 SH	47
	48	if (s & NUD_NOARP)
	49	return "static";
	50
	51	if (s & NUD_STALE)
	52	return "stale";
0849e60a	53
d04bc300 SH	54	if (s & NUD_REACHABLE)
	55	return "";
	56
	57	sprintf(buf, "state=%#x", s);
	58	return buf;
	59	}
	60
d04bc300 SH	61	int print_fdb(const struct sockaddr_nl who, struct nlmsghdr n, void *arg)
d04bc300 SH	62	{
0849e60a	63	FILE *fp = arg;
d04bc300 SH	64	struct ndmsg *r = NLMSG_DATA(n);
	65	int len = n->nlmsg_len;
	66	struct rtattr * tb[NDA_MAX+1];
0849e60a SH	67
	68	if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH) {
	69	fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n",
	70	n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
	71
	72	return 0;
	73	}
d04bc300 SH	74
	75	len -= NLMSG_LENGTH(sizeof(*r));
	76	if (len < 0) {
	77	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	78	return -1;
	79	}
	80
	81	if (r->ndm_family != AF_BRIDGE)
	82	return 0;
	83
	84	if (filter_index && filter_index != r->ndm_ifindex)
	85	return 0;
	86
	87	parse_rtattr(tb, NDA_MAX, NDA_RTA(r),
	88	n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
	89
	90	if (n->nlmsg_type == RTM_DELNEIGH)
0849e60a SH	91	fprintf(fp, "Deleted ");
	92
	93	if (tb[NDA_LLADDR]) {
	94	SPRINT_BUF(b1);
	95	fprintf(fp, "%s ",
	96	ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
	97	RTA_PAYLOAD(tb[NDA_LLADDR]),
	98	ll_index_to_type(r->ndm_ifindex),
	99	b1, sizeof(b1)));
d04bc300	100	}
38df7ac9	101
0849e60a SH	102	if (!filter_index && r->ndm_ifindex)
	103	fprintf(fp, "dev %s ", ll_index_to_name(r->ndm_ifindex));
	104
	105	if (tb[NDA_DST]) {
	106	SPRINT_BUF(abuf);
9e763fa5 MR	107	int family = AF_INET;
	108
	109	if (RTA_PAYLOAD(tb[NDA_DST]) == sizeof(struct in6_addr))
	110	family = AF_INET6;
	111
0849e60a	112	fprintf(fp, "dst %s ",
9e763fa5	113	format_host(family,
0849e60a SH	114	RTA_PAYLOAD(tb[NDA_DST]),
	115	RTA_DATA(tb[NDA_DST]),
	116	abuf, sizeof(abuf)));
	117	}
38df7ac9	118
fd08839c VY	119	if (tb[NDA_VLAN]) {
	120	__u16 vid = rta_getattr_u16(tb[NDA_VLAN]);
	121	fprintf(fp, "vlan %hu ", vid);
	122	}
	123
5f409678 DS	124	if (tb[NDA_PORT])
	125	fprintf(fp, "port %d ", ntohs(rta_getattr_u16(tb[NDA_PORT])));
	126	if (tb[NDA_VNI])
	127	fprintf(fp, "vni %d ", rta_getattr_u32(tb[NDA_VNI]));
	128	if (tb[NDA_IFINDEX]) {
	129	unsigned int ifindex = rta_getattr_u32(tb[NDA_IFINDEX]);
	130
	131	if (ifindex) {
	132	char ifname[IF_NAMESIZE];
	133
a4797670 ND	134	if (!tb[NDA_LINK_NETNSID] &&
a4797670 ND	135	if_indextoname(ifindex, ifname))
5f409678 DS	136	fprintf(fp, "via %s ", ifname);
	137	else
	138	fprintf(fp, "via ifindex %u ", ifindex);
	139	}
	140	}
a4797670 ND	141	if (tb[NDA_LINK_NETNSID])
	142	fprintf(fp, "link-netnsid %d ",
	143	rta_getattr_u32(tb[NDA_LINK_NETNSID]));
5f409678	144
d04bc300 SH	145	if (show_stats && tb[NDA_CACHEINFO]) {
d04bc300 SH	146	struct nda_cacheinfo *ci = RTA_DATA(tb[NDA_CACHEINFO]);
0849e60a	147	int hz = get_user_hz();
d04bc300	148
85c1807f	149	fprintf(fp, "used %d/%d ", ci->ndm_used/hz,
0849e60a	150	ci->ndm_updated/hz);
d04bc300	151	}
0849e60a SH	152	if (r->ndm_flags & NTF_SELF)
0849e60a SH	153	fprintf(fp, "self ");
cc273a51 RP	154	if (tb[NDA_MASTER])
	155	fprintf(fp, "master %s ",
	156	ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER])));
	157	else if (r->ndm_flags & NTF_MASTER)
0849e60a	158	fprintf(fp, "master ");
5b8a1d4a DS	159	if (r->ndm_flags & NTF_ROUTER)
5b8a1d4a DS	160	fprintf(fp, "router ");
28467b7f SF	161	if (r->ndm_flags & NTF_EXT_LEARNED)
28467b7f SF	162	fprintf(fp, "external ");
d04bc300	163
0849e60a	164	fprintf(fp, "%s\n", state_n2a(r->ndm_state));
d04bc300 SH	165	return 0;
	166	}
	167
	168	static int fdb_show(int argc, char **argv)
	169	{
aeb14eb0 JHS	170	struct {
	171	struct nlmsghdr n;
	172	struct ifinfomsg ifm;
	173	char buf[256];
	174	} req;
	175
d04bc300	176	char *filter_dev = NULL;
aeb14eb0 JHS	177	char *br = NULL;
	178	int msg_size = sizeof(struct ifinfomsg);
	179
	180	memset(&req, 0, sizeof(req));
	181	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
	182	req.ifm.ifi_family = PF_BRIDGE;
0849e60a	183
d04bc300	184	while (argc > 0) {
aeb14eb0	185	if ((strcmp(argv, "brport") == 0) \|\| strcmp(argv, "dev") == 0) {
d04bc300	186	NEXT_ARG();
d04bc300	187	filter_dev = *argv;
aeb14eb0 JHS	188	} else if (strcmp(*argv, "br") == 0) {
	189	NEXT_ARG();
	190	br = *argv;
	191	} else {
	192	if (matches(*argv, "help") == 0)
	193	usage();
d04bc300 SH	194	}
	195	argc--; argv++;
	196	}
	197
aeb14eb0 JHS	198	if (br) {
	199	int br_ifindex = ll_name_to_index(br);
	200	if (br_ifindex == 0) {
	201	fprintf(stderr, "Cannot find bridge device \"%s\"\n", br);
	202	return -1;
	203	}
	204	addattr32(&req.n, sizeof(req), IFLA_MASTER, br_ifindex);
	205	msg_size += RTA_LENGTH(4);
	206	}
	207
	208	/we'll keep around filter_dev for older kernels /
d04bc300	209	if (filter_dev) {
0849e60a SH	210	filter_index = if_nametoindex(filter_dev);
	211	if (filter_index == 0) {
	212	fprintf(stderr, "Cannot find device \"%s\"\n",
	213	filter_dev);
d04bc300 SH	214	return -1;
d04bc300 SH	215	}
aeb14eb0	216	req.ifm.ifi_index = filter_index;
d04bc300 SH	217	}
d04bc300 SH	218
aeb14eb0	219	if (rtnl_dump_request(&rth, RTM_GETNEIGH, &req.ifm, msg_size) < 0) {
d04bc300 SH	220	perror("Cannot send dump request");
	221	exit(1);
	222	}
d04bc300	223
0849e60a	224	if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) {
d04bc300 SH	225	fprintf(stderr, "Dump terminated\n");
	226	exit(1);
	227	}
	228
	229	return 0;
	230	}
	231
	232	static int fdb_modify(int cmd, int flags, int argc, char **argv)
	233	{
	234	struct {
	235	struct nlmsghdr n;
	236	struct ndmsg ndm;
	237	char buf[256];
	238	} req;
	239	char *addr = NULL;
	240	char *d = NULL;
	241	char abuf[ETH_ALEN];
0849e60a SH	242	int dst_ok = 0;
0849e60a SH	243	inet_prefix dst;
5f409678 DS	244	unsigned long port = 0;
	245	unsigned long vni = ~0;
	246	unsigned int via = 0;
	247	char *endptr;
fd08839c	248	short vid = -1;
d04bc300 SH	249
	250	memset(&req, 0, sizeof(req));
	251
	252	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg));
	253	req.n.nlmsg_flags = NLM_F_REQUEST\|flags;
	254	req.n.nlmsg_type = cmd;
	255	req.ndm.ndm_family = PF_BRIDGE;
	256	req.ndm.ndm_state = NUD_NOARP;
	257
	258	while (argc > 0) {
	259	if (strcmp(*argv, "dev") == 0) {
	260	NEXT_ARG();
	261	d = *argv;
0849e60a SH	262	} else if (strcmp(*argv, "dst") == 0) {
	263	NEXT_ARG();
	264	if (dst_ok)
	265	duparg2("dst", *argv);
	266	get_addr(&dst, *argv, preferred_family);
	267	dst_ok = 1;
5f409678 DS	268	} else if (strcmp(*argv, "port") == 0) {
	269
	270	NEXT_ARG();
	271	port = strtoul(*argv, &endptr, 0);
	272	if (endptr && *endptr) {
	273	struct servent *pse;
	274
	275	pse = getservbyname(*argv, "udp");
	276	if (!pse)
	277	invarg("invalid port\n", *argv);
	278	port = ntohs(pse->s_port);
	279	} else if (port > 0xffff)
	280	invarg("invalid port\n", *argv);
	281	} else if (strcmp(*argv, "vni") == 0) {
	282	NEXT_ARG();
	283	vni = strtoul(*argv, &endptr, 0);
	284	if ((endptr && *endptr) \|\|
	285	(vni >> 24) \|\| vni == ULONG_MAX)
	286	invarg("invalid VNI\n", *argv);
	287	} else if (strcmp(*argv, "via") == 0) {
	288	NEXT_ARG();
	289	via = if_nametoindex(*argv);
	290	if (via == 0)
	291	invarg("invalid device\n", *argv);
dc6a6a25 JF	292	} else if (strcmp(*argv, "self") == 0) {
dc6a6a25 JF	293	req.ndm.ndm_flags \|= NTF_SELF;
0849e60a	294	} else if (matches(*argv, "master") == 0) {
dc6a6a25	295	req.ndm.ndm_flags \|= NTF_MASTER;
5b8a1d4a DS	296	} else if (matches(*argv, "router") == 0) {
5b8a1d4a DS	297	req.ndm.ndm_flags \|= NTF_ROUTER;
38df7ac9	298	} else if (matches(*argv, "local") == 0\|\|
0849e60a SH	299	matches(*argv, "permanent") == 0) {
	300	req.ndm.ndm_state \|= NUD_PERMANENT;
	301	} else if (matches(*argv, "temp") == 0) {
	302	req.ndm.ndm_state \|= NUD_REACHABLE;
fd08839c VY	303	} else if (matches(*argv, "vlan") == 0) {
	304	if (vid >= 0)
	305	duparg2("vlan", *argv);
	306	NEXT_ARG();
	307	vid = atoi(*argv);
d04bc300 SH	308	} else {
	309	if (strcmp(*argv, "to") == 0) {
	310	NEXT_ARG();
	311	}
0849e60a SH	312	if (matches(*argv, "help") == 0)
0849e60a SH	313	usage();
d04bc300 SH	314	if (addr)
	315	duparg2("to", *argv);
	316	addr = *argv;
	317	}
	318	argc--; argv++;
	319	}
	320
	321	if (d == NULL \|\| addr == NULL) {
	322	fprintf(stderr, "Device and address are required arguments.\n");
	323	exit(-1);
	324	}
	325
0849e60a SH	326	/* Assume self */
	327	if (!(req.ndm.ndm_flags&(NTF_SELF\|NTF_MASTER)))
	328	req.ndm.ndm_flags \|= NTF_SELF;
	329
	330	/* Assume permanent */
	331	if (!(req.ndm.ndm_state&(NUD_PERMANENT\|NUD_REACHABLE)))
	332	req.ndm.ndm_state \|= NUD_PERMANENT;
	333
	334	if (sscanf(addr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
d04bc300 SH	335	abuf, abuf+1, abuf+2,
	336	abuf+3, abuf+4, abuf+5) != 6) {
	337	fprintf(stderr, "Invalid mac address %s\n", addr);
	338	exit(-1);
	339	}
	340
	341	addattr_l(&req.n, sizeof(req), NDA_LLADDR, abuf, ETH_ALEN);
0849e60a SH	342	if (dst_ok)
0849e60a SH	343	addattr_l(&req.n, sizeof(req), NDA_DST, &dst.data, dst.bytelen);
d04bc300	344
fd08839c	345	if (vid >= 0)
8ae66094	346	addattr16(&req.n, sizeof(req), NDA_VLAN, vid);
fd08839c	347
5f409678 DS	348	if (port) {
	349	unsigned short dport;
	350
	351	dport = htons((unsigned short)port);
	352	addattr16(&req.n, sizeof(req), NDA_PORT, dport);
	353	}
	354	if (vni != ~0)
	355	addattr32(&req.n, sizeof(req), NDA_VNI, vni);
	356	if (via)
	357	addattr32(&req.n, sizeof(req), NDA_IFINDEX, via);
	358
d04bc300 SH	359	req.ndm.ndm_ifindex = ll_name_to_index(d);
	360	if (req.ndm.ndm_ifindex == 0) {
	361	fprintf(stderr, "Cannot find device \"%s\"\n", d);
	362	return -1;
	363	}
	364
	365	if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
	366	exit(2);
	367
	368	return 0;
	369	}
	370
	371	int do_fdb(int argc, char **argv)
	372	{
	373	ll_init_map(&rth);
	374
	375	if (argc > 0) {
	376	if (matches(*argv, "add") == 0)
	377	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_EXCL, argc-1, argv+1);
5f409678 DS	378	if (matches(*argv, "append") == 0)
5f409678 DS	379	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_APPEND, argc-1, argv+1);
5464049b TR	380	if (matches(*argv, "replace") == 0)
5464049b TR	381	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_REPLACE, argc-1, argv+1);
d04bc300 SH	382	if (matches(*argv, "delete") == 0)
	383	return fdb_modify(RTM_DELNEIGH, 0, argc-1, argv+1);
	384	if (matches(*argv, "show") == 0 \|\|
	385	matches(*argv, "lst") == 0 \|\|
	386	matches(*argv, "list") == 0)
	387	return fdb_show(argc-1, argv+1);
	388	if (matches(*argv, "help") == 0)
	389	usage();
	390	} else
	391	return fdb_show(0, NULL);
	392
083b46bb	393	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv);
d04bc300 SH	394	exit(-1);
d04bc300 SH	395	}