[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, filter_vlan;

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 ] [ vlan VID ] ]\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];
	__u16 vid = 0;

	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 (tb[NDA_VLAN])
		vid = rta_getattr_u16(tb[NDA_VLAN]);

	if (filter_vlan && filter_vlan != vid)
		return 0;

	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 (vid)
		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 (strcmp(*argv, "vlan") == 0) {
			NEXT_ARG();
			if (filter_vlan)
				duparg("vlan", *argv);
			filter_vlan = atoi(*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
ae6eb907	30	static unsigned int filter_index, filter_vlan;
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");
ae6eb907	38	fprintf(stderr, " bridge fdb [ show [ br BRDEV ] [ brport DEV ] [ vlan VID ] ]\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];
ae6eb907	68	__u16 vid = 0;
0849e60a SH	69
	70	if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH) {
	71	fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n",
	72	n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
	73
	74	return 0;
	75	}
d04bc300 SH	76
	77	len -= NLMSG_LENGTH(sizeof(*r));
	78	if (len < 0) {
	79	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	80	return -1;
	81	}
	82
	83	if (r->ndm_family != AF_BRIDGE)
	84	return 0;
	85
	86	if (filter_index && filter_index != r->ndm_ifindex)
	87	return 0;
	88
	89	parse_rtattr(tb, NDA_MAX, NDA_RTA(r),
	90	n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
	91
ae6eb907 NA	92	if (tb[NDA_VLAN])
	93	vid = rta_getattr_u16(tb[NDA_VLAN]);
	94
	95	if (filter_vlan && filter_vlan != vid)
	96	return 0;
	97
d04bc300	98	if (n->nlmsg_type == RTM_DELNEIGH)
0849e60a SH	99	fprintf(fp, "Deleted ");
	100
	101	if (tb[NDA_LLADDR]) {
	102	SPRINT_BUF(b1);
	103	fprintf(fp, "%s ",
	104	ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
	105	RTA_PAYLOAD(tb[NDA_LLADDR]),
	106	ll_index_to_type(r->ndm_ifindex),
	107	b1, sizeof(b1)));
d04bc300	108	}
38df7ac9	109
0849e60a SH	110	if (!filter_index && r->ndm_ifindex)
	111	fprintf(fp, "dev %s ", ll_index_to_name(r->ndm_ifindex));
	112
	113	if (tb[NDA_DST]) {
9e763fa5 MR	114	int family = AF_INET;
	115
	116	if (RTA_PAYLOAD(tb[NDA_DST]) == sizeof(struct in6_addr))
	117	family = AF_INET6;
	118
0849e60a	119	fprintf(fp, "dst %s ",
9e763fa5	120	format_host(family,
0849e60a	121	RTA_PAYLOAD(tb[NDA_DST]),
a418e451	122	RTA_DATA(tb[NDA_DST])));
0849e60a	123	}
38df7ac9	124
ae6eb907	125	if (vid)
fd08839c	126	fprintf(fp, "vlan %hu ", vid);
fd08839c	127
5f409678 DS	128	if (tb[NDA_PORT])
	129	fprintf(fp, "port %d ", ntohs(rta_getattr_u16(tb[NDA_PORT])));
	130	if (tb[NDA_VNI])
	131	fprintf(fp, "vni %d ", rta_getattr_u32(tb[NDA_VNI]));
	132	if (tb[NDA_IFINDEX]) {
	133	unsigned int ifindex = rta_getattr_u32(tb[NDA_IFINDEX]);
	134
	135	if (ifindex) {
	136	char ifname[IF_NAMESIZE];
	137
a4797670 ND	138	if (!tb[NDA_LINK_NETNSID] &&
a4797670 ND	139	if_indextoname(ifindex, ifname))
5f409678 DS	140	fprintf(fp, "via %s ", ifname);
	141	else
	142	fprintf(fp, "via ifindex %u ", ifindex);
	143	}
	144	}
a4797670 ND	145	if (tb[NDA_LINK_NETNSID])
	146	fprintf(fp, "link-netnsid %d ",
	147	rta_getattr_u32(tb[NDA_LINK_NETNSID]));
5f409678	148
d04bc300 SH	149	if (show_stats && tb[NDA_CACHEINFO]) {
d04bc300 SH	150	struct nda_cacheinfo *ci = RTA_DATA(tb[NDA_CACHEINFO]);
0849e60a	151	int hz = get_user_hz();
d04bc300	152
85c1807f	153	fprintf(fp, "used %d/%d ", ci->ndm_used/hz,
0849e60a	154	ci->ndm_updated/hz);
d04bc300	155	}
0849e60a SH	156	if (r->ndm_flags & NTF_SELF)
0849e60a SH	157	fprintf(fp, "self ");
cc273a51 RP	158	if (tb[NDA_MASTER])
	159	fprintf(fp, "master %s ",
	160	ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER])));
	161	else if (r->ndm_flags & NTF_MASTER)
0849e60a	162	fprintf(fp, "master ");
5b8a1d4a DS	163	if (r->ndm_flags & NTF_ROUTER)
5b8a1d4a DS	164	fprintf(fp, "router ");
28467b7f	165	if (r->ndm_flags & NTF_EXT_LEARNED)
aa05b988	166	fprintf(fp, "offload ");
d04bc300	167
0849e60a	168	fprintf(fp, "%s\n", state_n2a(r->ndm_state));
4d45bf3b WK	169	fflush(fp);
4d45bf3b WK	170
d04bc300 SH	171	return 0;
	172	}
	173
	174	static int fdb_show(int argc, char **argv)
	175	{
aeb14eb0	176	struct {
df4b043f	177	struct nlmsghdr n;
aeb14eb0	178	struct ifinfomsg ifm;
df4b043f	179	char buf[256];
aeb14eb0 JHS	180	} req;
aeb14eb0 JHS	181
d04bc300	182	char *filter_dev = NULL;
aeb14eb0 JHS	183	char *br = NULL;
	184	int msg_size = sizeof(struct ifinfomsg);
	185
	186	memset(&req, 0, sizeof(req));
	187	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
	188	req.ifm.ifi_family = PF_BRIDGE;
0849e60a	189
d04bc300	190	while (argc > 0) {
aeb14eb0	191	if ((strcmp(argv, "brport") == 0) \|\| strcmp(argv, "dev") == 0) {
d04bc300	192	NEXT_ARG();
d04bc300	193	filter_dev = *argv;
aeb14eb0 JHS	194	} else if (strcmp(*argv, "br") == 0) {
	195	NEXT_ARG();
	196	br = *argv;
ae6eb907 NA	197	} else if (strcmp(*argv, "vlan") == 0) {
	198	NEXT_ARG();
	199	if (filter_vlan)
	200	duparg("vlan", *argv);
	201	filter_vlan = atoi(*argv);
aeb14eb0 JHS	202	} else {
	203	if (matches(*argv, "help") == 0)
	204	usage();
d04bc300 SH	205	}
	206	argc--; argv++;
	207	}
	208
aeb14eb0 JHS	209	if (br) {
aeb14eb0 JHS	210	int br_ifindex = ll_name_to_index(br);
df4b043f	211
aeb14eb0 JHS	212	if (br_ifindex == 0) {
	213	fprintf(stderr, "Cannot find bridge device \"%s\"\n", br);
	214	return -1;
	215	}
	216	addattr32(&req.n, sizeof(req), IFLA_MASTER, br_ifindex);
	217	msg_size += RTA_LENGTH(4);
	218	}
	219
	220	/we'll keep around filter_dev for older kernels /
d04bc300	221	if (filter_dev) {
0849e60a SH	222	filter_index = if_nametoindex(filter_dev);
	223	if (filter_index == 0) {
	224	fprintf(stderr, "Cannot find device \"%s\"\n",
	225	filter_dev);
d04bc300 SH	226	return -1;
d04bc300 SH	227	}
aeb14eb0	228	req.ifm.ifi_index = filter_index;
d04bc300 SH	229	}
d04bc300 SH	230
aeb14eb0	231	if (rtnl_dump_request(&rth, RTM_GETNEIGH, &req.ifm, msg_size) < 0) {
d04bc300 SH	232	perror("Cannot send dump request");
	233	exit(1);
	234	}
d04bc300	235
0849e60a	236	if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) {
d04bc300 SH	237	fprintf(stderr, "Dump terminated\n");
	238	exit(1);
	239	}
	240
	241	return 0;
	242	}
	243
	244	static int fdb_modify(int cmd, int flags, int argc, char **argv)
	245	{
	246	struct {
df4b043f SH	247	struct nlmsghdr n;
	248	struct ndmsg ndm;
	249	char buf[256];
d04bc300 SH	250	} req;
	251	char *addr = NULL;
	252	char *d = NULL;
	253	char abuf[ETH_ALEN];
0849e60a SH	254	int dst_ok = 0;
0849e60a SH	255	inet_prefix dst;
5f409678 DS	256	unsigned long port = 0;
	257	unsigned long vni = ~0;
	258	unsigned int via = 0;
	259	char *endptr;
fd08839c	260	short vid = -1;
d04bc300 SH	261
	262	memset(&req, 0, sizeof(req));
	263
	264	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg));
	265	req.n.nlmsg_flags = NLM_F_REQUEST\|flags;
	266	req.n.nlmsg_type = cmd;
	267	req.ndm.ndm_family = PF_BRIDGE;
	268	req.ndm.ndm_state = NUD_NOARP;
	269
	270	while (argc > 0) {
	271	if (strcmp(*argv, "dev") == 0) {
	272	NEXT_ARG();
	273	d = *argv;
0849e60a SH	274	} else if (strcmp(*argv, "dst") == 0) {
	275	NEXT_ARG();
	276	if (dst_ok)
	277	duparg2("dst", *argv);
	278	get_addr(&dst, *argv, preferred_family);
	279	dst_ok = 1;
5f409678 DS	280	} else if (strcmp(*argv, "port") == 0) {
	281
	282	NEXT_ARG();
	283	port = strtoul(*argv, &endptr, 0);
	284	if (endptr && *endptr) {
	285	struct servent *pse;
	286
	287	pse = getservbyname(*argv, "udp");
	288	if (!pse)
	289	invarg("invalid port\n", *argv);
	290	port = ntohs(pse->s_port);
	291	} else if (port > 0xffff)
	292	invarg("invalid port\n", *argv);
	293	} else if (strcmp(*argv, "vni") == 0) {
	294	NEXT_ARG();
	295	vni = strtoul(*argv, &endptr, 0);
	296	if ((endptr && *endptr) \|\|
	297	(vni >> 24) \|\| vni == ULONG_MAX)
	298	invarg("invalid VNI\n", *argv);
	299	} else if (strcmp(*argv, "via") == 0) {
	300	NEXT_ARG();
	301	via = if_nametoindex(*argv);
	302	if (via == 0)
	303	invarg("invalid device\n", *argv);
dc6a6a25 JF	304	} else if (strcmp(*argv, "self") == 0) {
dc6a6a25 JF	305	req.ndm.ndm_flags \|= NTF_SELF;
0849e60a	306	} else if (matches(*argv, "master") == 0) {
dc6a6a25	307	req.ndm.ndm_flags \|= NTF_MASTER;
5b8a1d4a DS	308	} else if (matches(*argv, "router") == 0) {
5b8a1d4a DS	309	req.ndm.ndm_flags \|= NTF_ROUTER;
e9e9365b	310	} else if (matches(*argv, "local") == 0 \|\|
0849e60a SH	311	matches(*argv, "permanent") == 0) {
0849e60a SH	312	req.ndm.ndm_state \|= NUD_PERMANENT;
a1987cd1 RP	313	} else if (matches(*argv, "temp") == 0 \|\|
a1987cd1 RP	314	matches(*argv, "static") == 0) {
0849e60a	315	req.ndm.ndm_state \|= NUD_REACHABLE;
c6d0cfb5 RP	316	} else if (matches(*argv, "dynamic") == 0) {
	317	req.ndm.ndm_state \|= NUD_REACHABLE;
	318	req.ndm.ndm_state &= ~NUD_NOARP;
fd08839c VY	319	} else if (matches(*argv, "vlan") == 0) {
	320	if (vid >= 0)
	321	duparg2("vlan", *argv);
	322	NEXT_ARG();
	323	vid = atoi(*argv);
cd8df30b RP	324	} else if (matches(*argv, "use") == 0) {
cd8df30b RP	325	req.ndm.ndm_flags \|= NTF_USE;
d04bc300 SH	326	} else {
	327	if (strcmp(*argv, "to") == 0) {
	328	NEXT_ARG();
	329	}
0849e60a SH	330	if (matches(*argv, "help") == 0)
0849e60a SH	331	usage();
d04bc300 SH	332	if (addr)
	333	duparg2("to", *argv);
	334	addr = *argv;
	335	}
	336	argc--; argv++;
	337	}
	338
	339	if (d == NULL \|\| addr == NULL) {
	340	fprintf(stderr, "Device and address are required arguments.\n");
42ecedd4	341	return -1;
d04bc300 SH	342	}
d04bc300 SH	343
0849e60a SH	344	/* Assume self */
	345	if (!(req.ndm.ndm_flags&(NTF_SELF\|NTF_MASTER)))
	346	req.ndm.ndm_flags \|= NTF_SELF;
	347
	348	/* Assume permanent */
	349	if (!(req.ndm.ndm_state&(NUD_PERMANENT\|NUD_REACHABLE)))
	350	req.ndm.ndm_state \|= NUD_PERMANENT;
	351
	352	if (sscanf(addr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
d04bc300 SH	353	abuf, abuf+1, abuf+2,
	354	abuf+3, abuf+4, abuf+5) != 6) {
	355	fprintf(stderr, "Invalid mac address %s\n", addr);
42ecedd4	356	return -1;
d04bc300 SH	357	}
	358
	359	addattr_l(&req.n, sizeof(req), NDA_LLADDR, abuf, ETH_ALEN);
0849e60a SH	360	if (dst_ok)
0849e60a SH	361	addattr_l(&req.n, sizeof(req), NDA_DST, &dst.data, dst.bytelen);
d04bc300	362
fd08839c	363	if (vid >= 0)
8ae66094	364	addattr16(&req.n, sizeof(req), NDA_VLAN, vid);
fd08839c	365
5f409678 DS	366	if (port) {
	367	unsigned short dport;
	368
	369	dport = htons((unsigned short)port);
	370	addattr16(&req.n, sizeof(req), NDA_PORT, dport);
	371	}
	372	if (vni != ~0)
	373	addattr32(&req.n, sizeof(req), NDA_VNI, vni);
	374	if (via)
	375	addattr32(&req.n, sizeof(req), NDA_IFINDEX, via);
	376
d04bc300 SH	377	req.ndm.ndm_ifindex = ll_name_to_index(d);
	378	if (req.ndm.ndm_ifindex == 0) {
	379	fprintf(stderr, "Cannot find device \"%s\"\n", d);
	380	return -1;
	381	}
	382
c079e121	383	if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
42ecedd4	384	return -1;
d04bc300 SH	385
	386	return 0;
	387	}
	388
	389	int do_fdb(int argc, char **argv)
	390	{
	391	ll_init_map(&rth);
	392
	393	if (argc > 0) {
	394	if (matches(*argv, "add") == 0)
	395	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_EXCL, argc-1, argv+1);
5f409678 DS	396	if (matches(*argv, "append") == 0)
5f409678 DS	397	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_APPEND, argc-1, argv+1);
5464049b TR	398	if (matches(*argv, "replace") == 0)
5464049b TR	399	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_REPLACE, argc-1, argv+1);
d04bc300 SH	400	if (matches(*argv, "delete") == 0)
	401	return fdb_modify(RTM_DELNEIGH, 0, argc-1, argv+1);
	402	if (matches(*argv, "show") == 0 \|\|
	403	matches(*argv, "lst") == 0 \|\|
	404	matches(*argv, "list") == 0)
	405	return fdb_show(argc-1, argv+1);
	406	if (matches(*argv, "help") == 0)
	407	usage();
	408	} else
	409	return fdb_show(0, NULL);
	410
083b46bb	411	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv);
d04bc300 SH	412	exit(-1);
d04bc300 SH	413	}