[mirror_iproute2.git] / bridge / fdb.c

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * 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 <stdbool.h>

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

static unsigned int filter_index, filter_vlan, filter_state;

static void usage(void)
{
	fprintf(stderr,
		"Usage: bridge fdb { add | append | del | replace } ADDR dev DEV\n"
		"              [ self ] [ master ] [ use ] [ router ] [ extern_learn ]\n"
		"              [ sticky ] [ local | static | dynamic ] [ dst IPADDR ]\n"
		"              [ vlan VID ] [ port PORT] [ vni VNI ] [ via DEV ]\n"
		"       bridge fdb [ show [ br BRDEV ] [ brport DEV ] [ vlan VID ] [ state STATE ] ]\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;
}

static int state_a2n(unsigned int *s, const char *arg)
{
	if (matches(arg, "permanent") == 0)
		*s = NUD_PERMANENT;
	else if (matches(arg, "static") == 0 || matches(arg, "temp") == 0)
		*s = NUD_NOARP;
	else if (matches(arg, "stale") == 0)
		*s = NUD_STALE;
	else if (matches(arg, "reachable") == 0 || matches(arg, "dynamic") == 0)
		*s = NUD_REACHABLE;
	else if (strcmp(arg, "all") == 0)
		*s = ~0;
	else if (get_unsigned(s, arg, 0))
		return -1;

	return 0;
}

static void fdb_print_flags(FILE *fp, unsigned int flags)
{
	open_json_array(PRINT_JSON,
			is_json_context() ?  "flags" : "");

	if (flags & NTF_SELF)
		print_string(PRINT_ANY, NULL, "%s ", "self");

	if (flags & NTF_ROUTER)
		print_string(PRINT_ANY, NULL, "%s ", "router");

	if (flags & NTF_EXT_LEARNED)
		print_string(PRINT_ANY, NULL, "%s ", "extern_learn");

	if (flags & NTF_OFFLOADED)
		print_string(PRINT_ANY, NULL, "%s ", "offload");

	if (flags & NTF_MASTER)
		print_string(PRINT_ANY, NULL, "%s ", "master");

	if (flags & NTF_STICKY)
		print_string(PRINT_ANY, NULL, "%s ", "sticky");

	close_json_array(PRINT_JSON, NULL);
}

static void fdb_print_stats(FILE *fp, const struct nda_cacheinfo *ci)
{
	static int hz;

	if (!hz)
		hz = get_user_hz();

	if (is_json_context()) {
		print_uint(PRINT_JSON, "used", NULL,
				 ci->ndm_used / hz);
		print_uint(PRINT_JSON, "updated", NULL,
				ci->ndm_updated / hz);
	} else {
		fprintf(fp, "used %d/%d ", ci->ndm_used / hz,
					ci->ndm_updated / hz);

	}
}

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;

	if (filter_state && !(r->ndm_state & filter_state))
		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;

	open_json_object(NULL);
	if (n->nlmsg_type == RTM_DELNEIGH)
		print_bool(PRINT_ANY, "deleted", "Deleted ", true);

	if (tb[NDA_LLADDR]) {
		const char *lladdr;
		SPRINT_BUF(b1);

		lladdr = ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
				     RTA_PAYLOAD(tb[NDA_LLADDR]),
				     ll_index_to_type(r->ndm_ifindex),
				     b1, sizeof(b1));

		print_color_string(PRINT_ANY, COLOR_MAC,
				   "mac", "%s ", lladdr);
	}

	if (!filter_index && r->ndm_ifindex) {
		if (!is_json_context())
			fprintf(fp, "dev ");
		print_color_string(PRINT_ANY, COLOR_IFNAME,
				   "ifname", "%s ",
				   ll_index_to_name(r->ndm_ifindex));
	}

	if (tb[NDA_DST]) {
		int family = AF_INET;
		const char *dst;

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

		dst = format_host(family,
				  RTA_PAYLOAD(tb[NDA_DST]),
				  RTA_DATA(tb[NDA_DST]));

		print_color_string(PRINT_ANY,
				   ifa_family_color(family),
				    "dst", "%s ", dst);
	}

	if (vid)
		print_uint(PRINT_ANY,
				 "vlan", "vlan %hu ", vid);

	if (tb[NDA_PORT])
		print_uint(PRINT_ANY,
				 "port", "port %u ",
				 rta_getattr_be16(tb[NDA_PORT]));

	if (tb[NDA_VNI])
		print_uint(PRINT_ANY,
				 "vni", "vni %u ",
				 rta_getattr_u32(tb[NDA_VNI]));

	if (tb[NDA_SRC_VNI])
		print_uint(PRINT_ANY,
				 "src_vni", "src_vni %u ",
				rta_getattr_u32(tb[NDA_SRC_VNI]));

	if (tb[NDA_IFINDEX]) {
		unsigned int ifindex = rta_getattr_u32(tb[NDA_IFINDEX]);

		if (tb[NDA_LINK_NETNSID])
			print_uint(PRINT_ANY,
					 "viaIfIndex", "via ifindex %u ",
					 ifindex);
		else
			print_string(PRINT_ANY,
					   "viaIf", "via %s ",
					   ll_index_to_name(ifindex));
	}

	if (tb[NDA_LINK_NETNSID])
		print_uint(PRINT_ANY,
				 "linkNetNsId", "link-netnsid %d ",
				 rta_getattr_u32(tb[NDA_LINK_NETNSID]));

	if (show_stats && tb[NDA_CACHEINFO])
		fdb_print_stats(fp, RTA_DATA(tb[NDA_CACHEINFO]));

	fdb_print_flags(fp, r->ndm_flags);


	if (tb[NDA_MASTER])
		print_string(PRINT_ANY, "master", "%s ",
			     ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER])));

	print_string(PRINT_ANY, "state", "%s\n",
			   state_n2a(r->ndm_state));
	close_json_object();
	fflush(fp);
	return 0;
}

static int fdb_show(int argc, char **argv)
{
	struct {
		struct nlmsghdr	n;
		struct ifinfomsg	ifm;
		char			buf[256];
	} req = {
		.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
		.ifm.ifi_family = PF_BRIDGE,
	};

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

	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 (strcmp(*argv, "state") == 0) {
			unsigned int state;

			NEXT_ARG();
			if (state_a2n(&state, *argv))
				invarg("invalid state", *argv);
			filter_state |= state;
		} 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 = ll_name_to_index(filter_dev);
		if (!filter_index)
			return nodev(filter_dev);
		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);
	}

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

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

	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 = ll_name_to_index(*argv);
			if (!via)
				exit(nodev(*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 (matches(*argv, "extern_learn") == 0) {
			req.ndm.ndm_flags |= NTF_EXT_LEARNED;
		} else if (matches(*argv, "sticky") == 0) {
			req.ndm.ndm_flags |= NTF_STICKY;
		} 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)
		return nodev(d);

	if (rtnl_talk(&rth, &req.n, NULL) < 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
6054c1eb	1	/* SPDX-License-Identifier: GPL-2.0 */
d04bc300 SH	2	/*
	3	* Get/set/delete fdb table with netlink
	4	*
0849e60a SH	5	* TODO: merge/replace this with ip neighbour
0849e60a SH	6	*
d04bc300 SH	7	* Authors: Stephen Hemminger <shemminger@vyatta.com>
	8	*/
	9
	10	#include <stdio.h>
	11	#include <stdlib.h>
	12	#include <unistd.h>
5f409678	13	#include <netdb.h>
d04bc300 SH	14	#include <time.h>
	15	#include <fcntl.h>
	16	#include <sys/socket.h>
	17	#include <sys/time.h>
	18	#include <net/if.h>
	19	#include <netinet/in.h>
	20	#include <linux/if_bridge.h>
	21	#include <linux/if_ether.h>
	22	#include <linux/neighbour.h>
	23	#include <string.h>
dd9cc0ee	24	#include <limits.h>
b239c56e	25	#include <stdbool.h>
d04bc300	26
c7c1a1ef	27	#include "json_print.h"
d04bc300 SH	28	#include "libnetlink.h"
d04bc300 SH	29	#include "br_common.h"
0849e60a	30	#include "rt_names.h"
d04bc300 SH	31	#include "utils.h"
d04bc300 SH	32
7f10090b	33	static unsigned int filter_index, filter_vlan, filter_state;
d04bc300 SH	34
	35	static void usage(void)
	36	{
bcddcddd SH	37	fprintf(stderr,
bcddcddd SH	38	"Usage: bridge fdb { add \| append \| del \| replace } ADDR dev DEV\n"
b4f84bf8	39	" [ self ] [ master ] [ use ] [ router ] [ extern_learn ]\n"
c3ded6e4 NA	40	" [ sticky ] [ local \| static \| dynamic ] [ dst IPADDR ]\n"
c3ded6e4 NA	41	" [ vlan VID ] [ port PORT] [ vni VNI ] [ via DEV ]\n"
bcddcddd	42	" bridge fdb [ show [ br BRDEV ] [ brport DEV ] [ vlan VID ] [ state STATE ] ]\n");
d04bc300 SH	43	exit(-1);
	44	}
	45
df4b043f	46	static const char *state_n2a(unsigned int s)
d04bc300 SH	47	{
	48	static char buf[32];
	49
0849e60a SH	50	if (s & NUD_PERMANENT)
0849e60a SH	51	return "permanent";
d04bc300 SH	52
	53	if (s & NUD_NOARP)
	54	return "static";
	55
	56	if (s & NUD_STALE)
	57	return "stale";
0849e60a	58
d04bc300 SH	59	if (s & NUD_REACHABLE)
	60	return "";
	61
	62	sprintf(buf, "state=%#x", s);
	63	return buf;
	64	}
	65
7f10090b NA	66	static int state_a2n(unsigned int s, const char arg)
	67	{
	68	if (matches(arg, "permanent") == 0)
	69	*s = NUD_PERMANENT;
	70	else if (matches(arg, "static") == 0 \|\| matches(arg, "temp") == 0)
	71	*s = NUD_NOARP;
	72	else if (matches(arg, "stale") == 0)
	73	*s = NUD_STALE;
	74	else if (matches(arg, "reachable") == 0 \|\| matches(arg, "dynamic") == 0)
	75	*s = NUD_REACHABLE;
	76	else if (strcmp(arg, "all") == 0)
	77	*s = ~0;
	78	else if (get_unsigned(s, arg, 0))
	79	return -1;
	80
	81	return 0;
	82	}
	83
c7c1a1ef SH	84	static void fdb_print_flags(FILE *fp, unsigned int flags)
	85	{
	86	open_json_array(PRINT_JSON,
	87	is_json_context() ? "flags" : "");
	88
	89	if (flags & NTF_SELF)
	90	print_string(PRINT_ANY, NULL, "%s ", "self");
	91
	92	if (flags & NTF_ROUTER)
	93	print_string(PRINT_ANY, NULL, "%s ", "router");
	94
	95	if (flags & NTF_EXT_LEARNED)
	96	print_string(PRINT_ANY, NULL, "%s ", "extern_learn");
	97
	98	if (flags & NTF_OFFLOADED)
	99	print_string(PRINT_ANY, NULL, "%s ", "offload");
	100
	101	if (flags & NTF_MASTER)
	102	print_string(PRINT_ANY, NULL, "%s ", "master");
	103
c3ded6e4 NA	104	if (flags & NTF_STICKY)
	105	print_string(PRINT_ANY, NULL, "%s ", "sticky");
	106
c7c1a1ef SH	107	close_json_array(PRINT_JSON, NULL);
	108	}
	109
	110	static void fdb_print_stats(FILE fp, const struct nda_cacheinfo ci)
b239c56e	111	{
c7c1a1ef SH	112	static int hz;
	113
	114	if (!hz)
	115	hz = get_user_hz();
	116
	117	if (is_json_context()) {
	118	print_uint(PRINT_JSON, "used", NULL,
	119	ci->ndm_used / hz);
	120	print_uint(PRINT_JSON, "updated", NULL,
	121	ci->ndm_updated / hz);
	122	} else {
	123	fprintf(fp, "used %d/%d ", ci->ndm_used / hz,
	124	ci->ndm_updated / hz);
	125
	126	}
b239c56e AK	127	}
b239c56e AK	128
d04bc300 SH	129	int print_fdb(const struct sockaddr_nl who, struct nlmsghdr n, void *arg)
d04bc300 SH	130	{
0849e60a	131	FILE *fp = arg;
d04bc300 SH	132	struct ndmsg *r = NLMSG_DATA(n);
d04bc300 SH	133	int len = n->nlmsg_len;
df4b043f	134	struct rtattr *tb[NDA_MAX+1];
ae6eb907	135	__u16 vid = 0;
0849e60a SH	136
	137	if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH) {
	138	fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n",
	139	n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
0849e60a SH	140	return 0;
0849e60a SH	141	}
d04bc300 SH	142
	143	len -= NLMSG_LENGTH(sizeof(*r));
	144	if (len < 0) {
	145	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	146	return -1;
	147	}
	148
	149	if (r->ndm_family != AF_BRIDGE)
	150	return 0;
	151
	152	if (filter_index && filter_index != r->ndm_ifindex)
	153	return 0;
	154
7f10090b NA	155	if (filter_state && !(r->ndm_state & filter_state))
	156	return 0;
	157
d04bc300 SH	158	parse_rtattr(tb, NDA_MAX, NDA_RTA(r),
	159	n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
	160
ae6eb907 NA	161	if (tb[NDA_VLAN])
	162	vid = rta_getattr_u16(tb[NDA_VLAN]);
	163
	164	if (filter_vlan && filter_vlan != vid)
	165	return 0;
	166
c7c1a1ef SH	167	open_json_object(NULL);
	168	if (n->nlmsg_type == RTM_DELNEIGH)
	169	print_bool(PRINT_ANY, "deleted", "Deleted ", true);
0849e60a SH	170
0849e60a SH	171	if (tb[NDA_LLADDR]) {
c7c1a1ef	172	const char *lladdr;
0849e60a	173	SPRINT_BUF(b1);
c7c1a1ef SH	174
	175	lladdr = ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
	176	RTA_PAYLOAD(tb[NDA_LLADDR]),
	177	ll_index_to_type(r->ndm_ifindex),
	178	b1, sizeof(b1));
	179
	180	print_color_string(PRINT_ANY, COLOR_MAC,
	181	"mac", "%s ", lladdr);
d04bc300	182	}
38df7ac9	183
b239c56e	184	if (!filter_index && r->ndm_ifindex) {
c7c1a1ef SH	185	if (!is_json_context())
	186	fprintf(fp, "dev ");
	187	print_color_string(PRINT_ANY, COLOR_IFNAME,
	188	"ifname", "%s ",
	189	ll_index_to_name(r->ndm_ifindex));
b239c56e	190	}
0849e60a SH	191
0849e60a SH	192	if (tb[NDA_DST]) {
9e763fa5	193	int family = AF_INET;
c7c1a1ef	194	const char *dst;
9e763fa5 MR	195
	196	if (RTA_PAYLOAD(tb[NDA_DST]) == sizeof(struct in6_addr))
	197	family = AF_INET6;
	198
c7c1a1ef SH	199	dst = format_host(family,
	200	RTA_PAYLOAD(tb[NDA_DST]),
	201	RTA_DATA(tb[NDA_DST]));
b239c56e	202
c7c1a1ef SH	203	print_color_string(PRINT_ANY,
	204	ifa_family_color(family),
	205	"dst", "%s ", dst);
b239c56e AK	206	}
b239c56e AK	207
c7c1a1ef SH	208	if (vid)
	209	print_uint(PRINT_ANY,
	210	"vlan", "vlan %hu ", vid);
38df7ac9	211
c7c1a1ef SH	212	if (tb[NDA_PORT])
	213	print_uint(PRINT_ANY,
	214	"port", "port %u ",
	215	rta_getattr_be16(tb[NDA_PORT]));
fd08839c	216
c7c1a1ef SH	217	if (tb[NDA_VNI])
	218	print_uint(PRINT_ANY,
	219	"vni", "vni %u ",
	220	rta_getattr_u32(tb[NDA_VNI]));
	221
	222	if (tb[NDA_SRC_VNI])
	223	print_uint(PRINT_ANY,
	224	"src_vni", "src_vni %u ",
86d0988b	225	rta_getattr_u32(tb[NDA_SRC_VNI]));
86d0988b	226
5f409678 DS	227	if (tb[NDA_IFINDEX]) {
	228	unsigned int ifindex = rta_getattr_u32(tb[NDA_IFINDEX]);
	229
c7c1a1ef SH	230	if (tb[NDA_LINK_NETNSID])
	231	print_uint(PRINT_ANY,
	232	"viaIfIndex", "via ifindex %u ",
	233	ifindex);
b239c56e	234	else
c7c1a1ef SH	235	print_string(PRINT_ANY,
	236	"viaIf", "via %s ",
	237	ll_index_to_name(ifindex));
b239c56e	238	}
5f409678	239
c7c1a1ef SH	240	if (tb[NDA_LINK_NETNSID])
	241	print_uint(PRINT_ANY,
	242	"linkNetNsId", "link-netnsid %d ",
	243	rta_getattr_u32(tb[NDA_LINK_NETNSID]));
d04bc300	244
c7c1a1ef SH	245	if (show_stats && tb[NDA_CACHEINFO])
c7c1a1ef SH	246	fdb_print_stats(fp, RTA_DATA(tb[NDA_CACHEINFO]));
b239c56e	247
c7c1a1ef	248	fdb_print_flags(fp, r->ndm_flags);
b239c56e	249
b239c56e	250
c7c1a1ef SH	251	if (tb[NDA_MASTER])
	252	print_string(PRINT_ANY, "master", "%s ",
	253	ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER])));
4d45bf3b	254
c7c1a1ef SH	255	print_string(PRINT_ANY, "state", "%s\n",
	256	state_n2a(r->ndm_state));
	257	close_json_object();
	258	fflush(fp);
d04bc300 SH	259	return 0;
	260	}
	261
	262	static int fdb_show(int argc, char **argv)
	263	{
aeb14eb0	264	struct {
df4b043f	265	struct nlmsghdr n;
aeb14eb0	266	struct ifinfomsg ifm;
df4b043f	267	char buf[256];
d17b136f PS	268	} req = {
	269	.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
	270	.ifm.ifi_family = PF_BRIDGE,
	271	};
aeb14eb0	272
d04bc300	273	char *filter_dev = NULL;
aeb14eb0 JHS	274	char *br = NULL;
	275	int msg_size = sizeof(struct ifinfomsg);
	276
d04bc300	277	while (argc > 0) {
aeb14eb0	278	if ((strcmp(argv, "brport") == 0) \|\| strcmp(argv, "dev") == 0) {
d04bc300	279	NEXT_ARG();
d04bc300	280	filter_dev = *argv;
aeb14eb0 JHS	281	} else if (strcmp(*argv, "br") == 0) {
	282	NEXT_ARG();
	283	br = *argv;
ae6eb907 NA	284	} else if (strcmp(*argv, "vlan") == 0) {
	285	NEXT_ARG();
	286	if (filter_vlan)
	287	duparg("vlan", *argv);
	288	filter_vlan = atoi(*argv);
7f10090b NA	289	} else if (strcmp(*argv, "state") == 0) {
	290	unsigned int state;
	291
	292	NEXT_ARG();
	293	if (state_a2n(&state, *argv))
	294	invarg("invalid state", *argv);
	295	filter_state \|= state;
aeb14eb0 JHS	296	} else {
	297	if (matches(*argv, "help") == 0)
	298	usage();
d04bc300 SH	299	}
	300	argc--; argv++;
	301	}
	302
aeb14eb0 JHS	303	if (br) {
aeb14eb0 JHS	304	int br_ifindex = ll_name_to_index(br);
df4b043f	305
aeb14eb0 JHS	306	if (br_ifindex == 0) {
	307	fprintf(stderr, "Cannot find bridge device \"%s\"\n", br);
	308	return -1;
	309	}
	310	addattr32(&req.n, sizeof(req), IFLA_MASTER, br_ifindex);
	311	msg_size += RTA_LENGTH(4);
	312	}
	313
	314	/we'll keep around filter_dev for older kernels /
d04bc300	315	if (filter_dev) {
7a14358b	316	filter_index = ll_name_to_index(filter_dev);
fe99adbc SP	317	if (!filter_index)
fe99adbc SP	318	return nodev(filter_dev);
aeb14eb0	319	req.ifm.ifi_index = filter_index;
d04bc300 SH	320	}
d04bc300 SH	321
aeb14eb0	322	if (rtnl_dump_request(&rth, RTM_GETNEIGH, &req.ifm, msg_size) < 0) {
d04bc300 SH	323	perror("Cannot send dump request");
	324	exit(1);
	325	}
d04bc300	326
c7c1a1ef	327	new_json_obj(json);
0849e60a	328	if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) {
d04bc300 SH	329	fprintf(stderr, "Dump terminated\n");
	330	exit(1);
	331	}
c7c1a1ef SH	332	delete_json_obj();
c7c1a1ef SH	333	fflush(stdout);
d04bc300 SH	334
	335	return 0;
	336	}
	337
	338	static int fdb_modify(int cmd, int flags, int argc, char **argv)
	339	{
	340	struct {
df4b043f SH	341	struct nlmsghdr n;
	342	struct ndmsg ndm;
	343	char buf[256];
d17b136f PS	344	} req = {
	345	.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg)),
	346	.n.nlmsg_flags = NLM_F_REQUEST \| flags,
	347	.n.nlmsg_type = cmd,
	348	.ndm.ndm_family = PF_BRIDGE,
	349	.ndm.ndm_state = NUD_NOARP,
	350	};
d04bc300 SH	351	char *addr = NULL;
	352	char *d = NULL;
	353	char abuf[ETH_ALEN];
0849e60a SH	354	int dst_ok = 0;
0849e60a SH	355	inet_prefix dst;
5f409678 DS	356	unsigned long port = 0;
	357	unsigned long vni = ~0;
	358	unsigned int via = 0;
	359	char *endptr;
fd08839c	360	short vid = -1;
d04bc300	361
d04bc300 SH	362	while (argc > 0) {
	363	if (strcmp(*argv, "dev") == 0) {
	364	NEXT_ARG();
	365	d = *argv;
0849e60a SH	366	} else if (strcmp(*argv, "dst") == 0) {
	367	NEXT_ARG();
	368	if (dst_ok)
	369	duparg2("dst", *argv);
	370	get_addr(&dst, *argv, preferred_family);
	371	dst_ok = 1;
5f409678 DS	372	} else if (strcmp(*argv, "port") == 0) {
	373
	374	NEXT_ARG();
	375	port = strtoul(*argv, &endptr, 0);
	376	if (endptr && *endptr) {
	377	struct servent *pse;
	378
	379	pse = getservbyname(*argv, "udp");
	380	if (!pse)
	381	invarg("invalid port\n", *argv);
	382	port = ntohs(pse->s_port);
	383	} else if (port > 0xffff)
	384	invarg("invalid port\n", *argv);
	385	} else if (strcmp(*argv, "vni") == 0) {
	386	NEXT_ARG();
	387	vni = strtoul(*argv, &endptr, 0);
	388	if ((endptr && *endptr) \|\|
	389	(vni >> 24) \|\| vni == ULONG_MAX)
	390	invarg("invalid VNI\n", *argv);
	391	} else if (strcmp(*argv, "via") == 0) {
	392	NEXT_ARG();
7a14358b	393	via = ll_name_to_index(*argv);
fe99adbc SP	394	if (!via)
fe99adbc SP	395	exit(nodev(*argv));
dc6a6a25 JF	396	} else if (strcmp(*argv, "self") == 0) {
dc6a6a25 JF	397	req.ndm.ndm_flags \|= NTF_SELF;
0849e60a	398	} else if (matches(*argv, "master") == 0) {
dc6a6a25	399	req.ndm.ndm_flags \|= NTF_MASTER;
5b8a1d4a DS	400	} else if (matches(*argv, "router") == 0) {
5b8a1d4a DS	401	req.ndm.ndm_flags \|= NTF_ROUTER;
e9e9365b	402	} else if (matches(*argv, "local") == 0 \|\|
0849e60a SH	403	matches(*argv, "permanent") == 0) {
0849e60a SH	404	req.ndm.ndm_state \|= NUD_PERMANENT;
a1987cd1 RP	405	} else if (matches(*argv, "temp") == 0 \|\|
a1987cd1 RP	406	matches(*argv, "static") == 0) {
0849e60a	407	req.ndm.ndm_state \|= NUD_REACHABLE;
c6d0cfb5 RP	408	} else if (matches(*argv, "dynamic") == 0) {
	409	req.ndm.ndm_state \|= NUD_REACHABLE;
	410	req.ndm.ndm_state &= ~NUD_NOARP;
fd08839c VY	411	} else if (matches(*argv, "vlan") == 0) {
	412	if (vid >= 0)
	413	duparg2("vlan", *argv);
	414	NEXT_ARG();
	415	vid = atoi(*argv);
cd8df30b RP	416	} else if (matches(*argv, "use") == 0) {
cd8df30b RP	417	req.ndm.ndm_flags \|= NTF_USE;
b4f84bf8 RP	418	} else if (matches(*argv, "extern_learn") == 0) {
b4f84bf8 RP	419	req.ndm.ndm_flags \|= NTF_EXT_LEARNED;
c3ded6e4 NA	420	} else if (matches(*argv, "sticky") == 0) {
c3ded6e4 NA	421	req.ndm.ndm_flags \|= NTF_STICKY;
d04bc300	422	} else {
bcddcddd	423	if (strcmp(*argv, "to") == 0)
d04bc300	424	NEXT_ARG();
bcddcddd	425
0849e60a SH	426	if (matches(*argv, "help") == 0)
0849e60a SH	427	usage();
d04bc300 SH	428	if (addr)
	429	duparg2("to", *argv);
	430	addr = *argv;
	431	}
	432	argc--; argv++;
	433	}
	434
	435	if (d == NULL \|\| addr == NULL) {
	436	fprintf(stderr, "Device and address are required arguments.\n");
42ecedd4	437	return -1;
d04bc300 SH	438	}
d04bc300 SH	439
0849e60a SH	440	/* Assume self */
	441	if (!(req.ndm.ndm_flags&(NTF_SELF\|NTF_MASTER)))
	442	req.ndm.ndm_flags \|= NTF_SELF;
	443
	444	/* Assume permanent */
	445	if (!(req.ndm.ndm_state&(NUD_PERMANENT\|NUD_REACHABLE)))
	446	req.ndm.ndm_state \|= NUD_PERMANENT;
	447
	448	if (sscanf(addr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
d04bc300 SH	449	abuf, abuf+1, abuf+2,
	450	abuf+3, abuf+4, abuf+5) != 6) {
	451	fprintf(stderr, "Invalid mac address %s\n", addr);
42ecedd4	452	return -1;
d04bc300 SH	453	}
	454
	455	addattr_l(&req.n, sizeof(req), NDA_LLADDR, abuf, ETH_ALEN);
0849e60a SH	456	if (dst_ok)
0849e60a SH	457	addattr_l(&req.n, sizeof(req), NDA_DST, &dst.data, dst.bytelen);
d04bc300	458
fd08839c	459	if (vid >= 0)
8ae66094	460	addattr16(&req.n, sizeof(req), NDA_VLAN, vid);
fd08839c	461
5f409678 DS	462	if (port) {
	463	unsigned short dport;
	464
	465	dport = htons((unsigned short)port);
	466	addattr16(&req.n, sizeof(req), NDA_PORT, dport);
	467	}
	468	if (vni != ~0)
	469	addattr32(&req.n, sizeof(req), NDA_VNI, vni);
	470	if (via)
	471	addattr32(&req.n, sizeof(req), NDA_IFINDEX, via);
	472
d04bc300	473	req.ndm.ndm_ifindex = ll_name_to_index(d);
fe99adbc SP	474	if (!req.ndm.ndm_ifindex)
fe99adbc SP	475	return nodev(d);
d04bc300	476
86bf43c7	477	if (rtnl_talk(&rth, &req.n, NULL) < 0)
42ecedd4	478	return -1;
d04bc300 SH	479
	480	return 0;
	481	}
	482
	483	int do_fdb(int argc, char **argv)
	484	{
	485	ll_init_map(&rth);
	486
	487	if (argc > 0) {
	488	if (matches(*argv, "add") == 0)
	489	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_EXCL, argc-1, argv+1);
5f409678 DS	490	if (matches(*argv, "append") == 0)
5f409678 DS	491	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_APPEND, argc-1, argv+1);
5464049b TR	492	if (matches(*argv, "replace") == 0)
5464049b TR	493	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_REPLACE, argc-1, argv+1);
d04bc300 SH	494	if (matches(*argv, "delete") == 0)
	495	return fdb_modify(RTM_DELNEIGH, 0, argc-1, argv+1);
	496	if (matches(*argv, "show") == 0 \|\|
	497	matches(*argv, "lst") == 0 \|\|
	498	matches(*argv, "list") == 0)
	499	return fdb_show(argc-1, argv+1);
	500	if (matches(*argv, "help") == 0)
	501	usage();
	502	} else
	503	return fdb_show(0, NULL);
	504
083b46bb	505	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv);
d04bc300 SH	506	exit(-1);
d04bc300 SH	507	}