[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\n"
			"              [ self ] [ master ] [ use ] [ router ]\n"
			"              [ local | static | dynamic ] [ 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 int 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]) {
		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])));
	}

	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, "offload ");

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

	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 ||
			   matches(*argv, "static") == 0) {
			req.ndm.ndm_state |= NUD_REACHABLE;
		} else if (matches(*argv, "dynamic") == 0) {
			req.ndm.ndm_state |= NUD_REACHABLE;
			req.ndm.ndm_state &= ~NUD_NOARP;
		} else if (matches(*argv, "vlan") == 0) {
			if (vid >= 0)
				duparg2("vlan", *argv);
			NEXT_ARG();
			vid = atoi(*argv);
		} else if (matches(*argv, "use") == 0) {
			req.ndm.ndm_flags |= NTF_USE;
		} 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");
		return -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);
		return -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, NULL, 0) < 0)
		return -1;

	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	{
bd5bbad4	34	fprintf(stderr, "Usage: bridge fdb { add \| append \| del \| replace } ADDR dev DEV\n"
cd8df30b	35	" [ self ] [ master ] [ use ] [ router ]\n"
c6d0cfb5	36	" [ local \| static \| dynamic ] [ dst IPADDR ] [ vlan VID ]\n"
df4b043f	37	" [ port PORT] [ vni VNI ] [ via DEV ]\n");
bd5bbad4	38	fprintf(stderr, " bridge fdb [ show [ br BRDEV ] [ brport DEV ] ]\n");
d04bc300 SH	39	exit(-1);
	40	}
	41
df4b043f	42	static const char *state_n2a(unsigned int s)
d04bc300 SH	43	{
	44	static char buf[32];
	45
0849e60a SH	46	if (s & NUD_PERMANENT)
0849e60a SH	47	return "permanent";
d04bc300 SH	48
	49	if (s & NUD_NOARP)
	50	return "static";
	51
	52	if (s & NUD_STALE)
	53	return "stale";
0849e60a	54
d04bc300 SH	55	if (s & NUD_REACHABLE)
	56	return "";
	57
	58	sprintf(buf, "state=%#x", s);
	59	return buf;
	60	}
	61
d04bc300 SH	62	int print_fdb(const struct sockaddr_nl who, struct nlmsghdr n, void *arg)
d04bc300 SH	63	{
0849e60a	64	FILE *fp = arg;
d04bc300 SH	65	struct ndmsg *r = NLMSG_DATA(n);
d04bc300 SH	66	int len = n->nlmsg_len;
df4b043f	67	struct rtattr *tb[NDA_MAX+1];
0849e60a SH	68
	69	if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH) {
	70	fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n",
	71	n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
	72
	73	return 0;
	74	}
d04bc300 SH	75
	76	len -= NLMSG_LENGTH(sizeof(*r));
	77	if (len < 0) {
	78	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	79	return -1;
	80	}
	81
	82	if (r->ndm_family != AF_BRIDGE)
	83	return 0;
	84
	85	if (filter_index && filter_index != r->ndm_ifindex)
	86	return 0;
	87
	88	parse_rtattr(tb, NDA_MAX, NDA_RTA(r),
	89	n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
	90
	91	if (n->nlmsg_type == RTM_DELNEIGH)
0849e60a SH	92	fprintf(fp, "Deleted ");
	93
	94	if (tb[NDA_LLADDR]) {
	95	SPRINT_BUF(b1);
	96	fprintf(fp, "%s ",
	97	ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
	98	RTA_PAYLOAD(tb[NDA_LLADDR]),
	99	ll_index_to_type(r->ndm_ifindex),
	100	b1, sizeof(b1)));
d04bc300	101	}
38df7ac9	102
0849e60a SH	103	if (!filter_index && r->ndm_ifindex)
	104	fprintf(fp, "dev %s ", ll_index_to_name(r->ndm_ifindex));
	105
	106	if (tb[NDA_DST]) {
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	114	RTA_PAYLOAD(tb[NDA_DST]),
a418e451	115	RTA_DATA(tb[NDA_DST])));
0849e60a	116	}
38df7ac9	117
fd08839c VY	118	if (tb[NDA_VLAN]) {
fd08839c VY	119	__u16 vid = rta_getattr_u16(tb[NDA_VLAN]);
df4b043f	120
fd08839c VY	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	161	if (r->ndm_flags & NTF_EXT_LEARNED)
aa05b988	162	fprintf(fp, "offload ");
d04bc300	163
0849e60a	164	fprintf(fp, "%s\n", state_n2a(r->ndm_state));
4d45bf3b WK	165	fflush(fp);
4d45bf3b WK	166
d04bc300 SH	167	return 0;
	168	}
	169
	170	static int fdb_show(int argc, char **argv)
	171	{
aeb14eb0	172	struct {
df4b043f	173	struct nlmsghdr n;
aeb14eb0	174	struct ifinfomsg ifm;
df4b043f	175	char buf[256];
aeb14eb0 JHS	176	} req;
aeb14eb0 JHS	177
d04bc300	178	char *filter_dev = NULL;
aeb14eb0 JHS	179	char *br = NULL;
	180	int msg_size = sizeof(struct ifinfomsg);
	181
	182	memset(&req, 0, sizeof(req));
	183	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
	184	req.ifm.ifi_family = PF_BRIDGE;
0849e60a	185
d04bc300	186	while (argc > 0) {
aeb14eb0	187	if ((strcmp(argv, "brport") == 0) \|\| strcmp(argv, "dev") == 0) {
d04bc300	188	NEXT_ARG();
d04bc300	189	filter_dev = *argv;
aeb14eb0 JHS	190	} else if (strcmp(*argv, "br") == 0) {
	191	NEXT_ARG();
	192	br = *argv;
	193	} else {
	194	if (matches(*argv, "help") == 0)
	195	usage();
d04bc300 SH	196	}
	197	argc--; argv++;
	198	}
	199
aeb14eb0 JHS	200	if (br) {
aeb14eb0 JHS	201	int br_ifindex = ll_name_to_index(br);
df4b043f	202
aeb14eb0 JHS	203	if (br_ifindex == 0) {
	204	fprintf(stderr, "Cannot find bridge device \"%s\"\n", br);
	205	return -1;
	206	}
	207	addattr32(&req.n, sizeof(req), IFLA_MASTER, br_ifindex);
	208	msg_size += RTA_LENGTH(4);
	209	}
	210
	211	/we'll keep around filter_dev for older kernels /
d04bc300	212	if (filter_dev) {
0849e60a SH	213	filter_index = if_nametoindex(filter_dev);
	214	if (filter_index == 0) {
	215	fprintf(stderr, "Cannot find device \"%s\"\n",
	216	filter_dev);
d04bc300 SH	217	return -1;
d04bc300 SH	218	}
aeb14eb0	219	req.ifm.ifi_index = filter_index;
d04bc300 SH	220	}
d04bc300 SH	221
aeb14eb0	222	if (rtnl_dump_request(&rth, RTM_GETNEIGH, &req.ifm, msg_size) < 0) {
d04bc300 SH	223	perror("Cannot send dump request");
	224	exit(1);
	225	}
d04bc300	226
0849e60a	227	if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) {
d04bc300 SH	228	fprintf(stderr, "Dump terminated\n");
	229	exit(1);
	230	}
	231
	232	return 0;
	233	}
	234
	235	static int fdb_modify(int cmd, int flags, int argc, char **argv)
	236	{
	237	struct {
df4b043f SH	238	struct nlmsghdr n;
	239	struct ndmsg ndm;
	240	char buf[256];
d04bc300 SH	241	} req;
	242	char *addr = NULL;
	243	char *d = NULL;
	244	char abuf[ETH_ALEN];
0849e60a SH	245	int dst_ok = 0;
0849e60a SH	246	inet_prefix dst;
5f409678 DS	247	unsigned long port = 0;
	248	unsigned long vni = ~0;
	249	unsigned int via = 0;
	250	char *endptr;
fd08839c	251	short vid = -1;
d04bc300 SH	252
	253	memset(&req, 0, sizeof(req));
	254
	255	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg));
	256	req.n.nlmsg_flags = NLM_F_REQUEST\|flags;
	257	req.n.nlmsg_type = cmd;
	258	req.ndm.ndm_family = PF_BRIDGE;
	259	req.ndm.ndm_state = NUD_NOARP;
	260
	261	while (argc > 0) {
	262	if (strcmp(*argv, "dev") == 0) {
	263	NEXT_ARG();
	264	d = *argv;
0849e60a SH	265	} else if (strcmp(*argv, "dst") == 0) {
	266	NEXT_ARG();
	267	if (dst_ok)
	268	duparg2("dst", *argv);
	269	get_addr(&dst, *argv, preferred_family);
	270	dst_ok = 1;
5f409678 DS	271	} else if (strcmp(*argv, "port") == 0) {
	272
	273	NEXT_ARG();
	274	port = strtoul(*argv, &endptr, 0);
	275	if (endptr && *endptr) {
	276	struct servent *pse;
	277
	278	pse = getservbyname(*argv, "udp");
	279	if (!pse)
	280	invarg("invalid port\n", *argv);
	281	port = ntohs(pse->s_port);
	282	} else if (port > 0xffff)
	283	invarg("invalid port\n", *argv);
	284	} else if (strcmp(*argv, "vni") == 0) {
	285	NEXT_ARG();
	286	vni = strtoul(*argv, &endptr, 0);
	287	if ((endptr && *endptr) \|\|
	288	(vni >> 24) \|\| vni == ULONG_MAX)
	289	invarg("invalid VNI\n", *argv);
	290	} else if (strcmp(*argv, "via") == 0) {
	291	NEXT_ARG();
	292	via = if_nametoindex(*argv);
	293	if (via == 0)
	294	invarg("invalid device\n", *argv);
dc6a6a25 JF	295	} else if (strcmp(*argv, "self") == 0) {
dc6a6a25 JF	296	req.ndm.ndm_flags \|= NTF_SELF;
0849e60a	297	} else if (matches(*argv, "master") == 0) {
dc6a6a25	298	req.ndm.ndm_flags \|= NTF_MASTER;
5b8a1d4a DS	299	} else if (matches(*argv, "router") == 0) {
5b8a1d4a DS	300	req.ndm.ndm_flags \|= NTF_ROUTER;
e9e9365b	301	} else if (matches(*argv, "local") == 0 \|\|
0849e60a SH	302	matches(*argv, "permanent") == 0) {
0849e60a SH	303	req.ndm.ndm_state \|= NUD_PERMANENT;
a1987cd1 RP	304	} else if (matches(*argv, "temp") == 0 \|\|
a1987cd1 RP	305	matches(*argv, "static") == 0) {
0849e60a	306	req.ndm.ndm_state \|= NUD_REACHABLE;
c6d0cfb5 RP	307	} else if (matches(*argv, "dynamic") == 0) {
	308	req.ndm.ndm_state \|= NUD_REACHABLE;
	309	req.ndm.ndm_state &= ~NUD_NOARP;
fd08839c VY	310	} else if (matches(*argv, "vlan") == 0) {
	311	if (vid >= 0)
	312	duparg2("vlan", *argv);
	313	NEXT_ARG();
	314	vid = atoi(*argv);
cd8df30b RP	315	} else if (matches(*argv, "use") == 0) {
cd8df30b RP	316	req.ndm.ndm_flags \|= NTF_USE;
d04bc300 SH	317	} else {
	318	if (strcmp(*argv, "to") == 0) {
	319	NEXT_ARG();
	320	}
0849e60a SH	321	if (matches(*argv, "help") == 0)
0849e60a SH	322	usage();
d04bc300 SH	323	if (addr)
	324	duparg2("to", *argv);
	325	addr = *argv;
	326	}
	327	argc--; argv++;
	328	}
	329
	330	if (d == NULL \|\| addr == NULL) {
	331	fprintf(stderr, "Device and address are required arguments.\n");
42ecedd4	332	return -1;
d04bc300 SH	333	}
d04bc300 SH	334
0849e60a SH	335	/* Assume self */
	336	if (!(req.ndm.ndm_flags&(NTF_SELF\|NTF_MASTER)))
	337	req.ndm.ndm_flags \|= NTF_SELF;
	338
	339	/* Assume permanent */
	340	if (!(req.ndm.ndm_state&(NUD_PERMANENT\|NUD_REACHABLE)))
	341	req.ndm.ndm_state \|= NUD_PERMANENT;
	342
	343	if (sscanf(addr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
d04bc300 SH	344	abuf, abuf+1, abuf+2,
	345	abuf+3, abuf+4, abuf+5) != 6) {
	346	fprintf(stderr, "Invalid mac address %s\n", addr);
42ecedd4	347	return -1;
d04bc300 SH	348	}
	349
	350	addattr_l(&req.n, sizeof(req), NDA_LLADDR, abuf, ETH_ALEN);
0849e60a SH	351	if (dst_ok)
0849e60a SH	352	addattr_l(&req.n, sizeof(req), NDA_DST, &dst.data, dst.bytelen);
d04bc300	353
fd08839c	354	if (vid >= 0)
8ae66094	355	addattr16(&req.n, sizeof(req), NDA_VLAN, vid);
fd08839c	356
5f409678 DS	357	if (port) {
	358	unsigned short dport;
	359
	360	dport = htons((unsigned short)port);
	361	addattr16(&req.n, sizeof(req), NDA_PORT, dport);
	362	}
	363	if (vni != ~0)
	364	addattr32(&req.n, sizeof(req), NDA_VNI, vni);
	365	if (via)
	366	addattr32(&req.n, sizeof(req), NDA_IFINDEX, via);
	367
d04bc300 SH	368	req.ndm.ndm_ifindex = ll_name_to_index(d);
	369	if (req.ndm.ndm_ifindex == 0) {
	370	fprintf(stderr, "Cannot find device \"%s\"\n", d);
	371	return -1;
	372	}
	373
c079e121	374	if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
42ecedd4	375	return -1;
d04bc300 SH	376
	377	return 0;
	378	}
	379
	380	int do_fdb(int argc, char **argv)
	381	{
	382	ll_init_map(&rth);
	383
	384	if (argc > 0) {
	385	if (matches(*argv, "add") == 0)
	386	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_EXCL, argc-1, argv+1);
5f409678 DS	387	if (matches(*argv, "append") == 0)
5f409678 DS	388	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_APPEND, argc-1, argv+1);
5464049b TR	389	if (matches(*argv, "replace") == 0)
5464049b TR	390	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_REPLACE, argc-1, argv+1);
d04bc300 SH	391	if (matches(*argv, "delete") == 0)
	392	return fdb_modify(RTM_DELNEIGH, 0, argc-1, argv+1);
	393	if (matches(*argv, "show") == 0 \|\|
	394	matches(*argv, "lst") == 0 \|\|
	395	matches(*argv, "list") == 0)
	396	return fdb_show(argc-1, argv+1);
	397	if (matches(*argv, "help") == 0)
	398	usage();
	399	} else
	400	return fdb_show(0, NULL);
	401
083b46bb	402	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv);
d04bc300 SH	403	exit(-1);
d04bc300 SH	404	}