[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, filter_master;

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(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)
		print_color_string(PRINT_ANY, COLOR_IFNAME,
				   "ifname", "dev %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", "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", "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_dump_filter(struct nlmsghdr *nlh, int reqlen)
{
	int err;

	if (filter_index) {
		struct ndmsg *ndm = NLMSG_DATA(nlh);

		ndm->ndm_ifindex = filter_index;
	}

	if (filter_master) {
		err = addattr32(nlh, reqlen, NDA_MASTER, filter_master);
		if (err)
			return err;
	}

	return 0;
}

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

	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;
		}
		filter_master = br_ifindex;
	}

	/*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);
	}

	if (rtnl_neighdump_req(&rth, PF_BRIDGE, fdb_dump_filter) < 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
66b4199f	33	static unsigned int filter_index, filter_vlan, filter_state, filter_master;
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
cd554f2c	129	int print_fdb(struct nlmsghdr n, void arg)
d04bc300	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
a795211f	184	if (!filter_index && r->ndm_ifindex)
c7c1a1ef	185	print_color_string(PRINT_ANY, COLOR_IFNAME,
4abb8c72	186	"ifname", "dev %s ",
c7c1a1ef	187	ll_index_to_name(r->ndm_ifindex));
0849e60a SH	188
0849e60a SH	189	if (tb[NDA_DST]) {
9e763fa5	190	int family = AF_INET;
c7c1a1ef	191	const char *dst;
9e763fa5 MR	192
	193	if (RTA_PAYLOAD(tb[NDA_DST]) == sizeof(struct in6_addr))
	194	family = AF_INET6;
	195
c7c1a1ef SH	196	dst = format_host(family,
	197	RTA_PAYLOAD(tb[NDA_DST]),
	198	RTA_DATA(tb[NDA_DST]));
b239c56e	199
c7c1a1ef SH	200	print_color_string(PRINT_ANY,
c7c1a1ef SH	201	ifa_family_color(family),
4abb8c72	202	"dst", "dst %s ", dst);
b239c56e AK	203	}
b239c56e AK	204
c7c1a1ef SH	205	if (vid)
	206	print_uint(PRINT_ANY,
	207	"vlan", "vlan %hu ", vid);
38df7ac9	208
c7c1a1ef SH	209	if (tb[NDA_PORT])
	210	print_uint(PRINT_ANY,
	211	"port", "port %u ",
	212	rta_getattr_be16(tb[NDA_PORT]));
fd08839c	213
c7c1a1ef SH	214	if (tb[NDA_VNI])
	215	print_uint(PRINT_ANY,
	216	"vni", "vni %u ",
	217	rta_getattr_u32(tb[NDA_VNI]));
	218
	219	if (tb[NDA_SRC_VNI])
	220	print_uint(PRINT_ANY,
	221	"src_vni", "src_vni %u ",
86d0988b	222	rta_getattr_u32(tb[NDA_SRC_VNI]));
86d0988b	223
5f409678 DS	224	if (tb[NDA_IFINDEX]) {
	225	unsigned int ifindex = rta_getattr_u32(tb[NDA_IFINDEX]);
	226
c7c1a1ef SH	227	if (tb[NDA_LINK_NETNSID])
	228	print_uint(PRINT_ANY,
	229	"viaIfIndex", "via ifindex %u ",
	230	ifindex);
b239c56e	231	else
c7c1a1ef SH	232	print_string(PRINT_ANY,
	233	"viaIf", "via %s ",
	234	ll_index_to_name(ifindex));
b239c56e	235	}
5f409678	236
c7c1a1ef SH	237	if (tb[NDA_LINK_NETNSID])
	238	print_uint(PRINT_ANY,
	239	"linkNetNsId", "link-netnsid %d ",
	240	rta_getattr_u32(tb[NDA_LINK_NETNSID]));
d04bc300	241
c7c1a1ef SH	242	if (show_stats && tb[NDA_CACHEINFO])
c7c1a1ef SH	243	fdb_print_stats(fp, RTA_DATA(tb[NDA_CACHEINFO]));
b239c56e	244
c7c1a1ef	245	fdb_print_flags(fp, r->ndm_flags);
b239c56e	246
b239c56e	247
c7c1a1ef	248	if (tb[NDA_MASTER])
4abb8c72	249	print_string(PRINT_ANY, "master", "master %s ",
c7c1a1ef	250	ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER])));
4d45bf3b	251
c7c1a1ef SH	252	print_string(PRINT_ANY, "state", "%s\n",
	253	state_n2a(r->ndm_state));
	254	close_json_object();
	255	fflush(fp);
d04bc300 SH	256	return 0;
	257	}
	258
66b4199f	259	static int fdb_dump_filter(struct nlmsghdr *nlh, int reqlen)
d04bc300	260	{
66b4199f DA	261	int err;
	262
	263	if (filter_index) {
	264	struct ndmsg *ndm = NLMSG_DATA(nlh);
aeb14eb0	265
66b4199f DA	266	ndm->ndm_ifindex = filter_index;
	267	}
	268
	269	if (filter_master) {
	270	err = addattr32(nlh, reqlen, NDA_MASTER, filter_master);
	271	if (err)
	272	return err;
	273	}
	274
	275	return 0;
	276	}
	277
	278	static int fdb_show(int argc, char **argv)
	279	{
d04bc300	280	char *filter_dev = NULL;
aeb14eb0	281	char *br = NULL;
aeb14eb0	282
d04bc300	283	while (argc > 0) {
aeb14eb0	284	if ((strcmp(argv, "brport") == 0) \|\| strcmp(argv, "dev") == 0) {
d04bc300	285	NEXT_ARG();
d04bc300	286	filter_dev = *argv;
aeb14eb0 JHS	287	} else if (strcmp(*argv, "br") == 0) {
	288	NEXT_ARG();
	289	br = *argv;
ae6eb907 NA	290	} else if (strcmp(*argv, "vlan") == 0) {
	291	NEXT_ARG();
	292	if (filter_vlan)
	293	duparg("vlan", *argv);
	294	filter_vlan = atoi(*argv);
7f10090b NA	295	} else if (strcmp(*argv, "state") == 0) {
	296	unsigned int state;
	297
	298	NEXT_ARG();
	299	if (state_a2n(&state, *argv))
	300	invarg("invalid state", *argv);
	301	filter_state \|= state;
aeb14eb0 JHS	302	} else {
	303	if (matches(*argv, "help") == 0)
	304	usage();
d04bc300 SH	305	}
	306	argc--; argv++;
	307	}
	308
aeb14eb0 JHS	309	if (br) {
aeb14eb0 JHS	310	int br_ifindex = ll_name_to_index(br);
df4b043f	311
aeb14eb0 JHS	312	if (br_ifindex == 0) {
	313	fprintf(stderr, "Cannot find bridge device \"%s\"\n", br);
	314	return -1;
	315	}
66b4199f	316	filter_master = br_ifindex;
aeb14eb0 JHS	317	}
	318
	319	/we'll keep around filter_dev for older kernels /
d04bc300	320	if (filter_dev) {
7a14358b	321	filter_index = ll_name_to_index(filter_dev);
fe99adbc SP	322	if (!filter_index)
fe99adbc SP	323	return nodev(filter_dev);
d04bc300 SH	324	}
d04bc300 SH	325
66b4199f	326	if (rtnl_neighdump_req(&rth, PF_BRIDGE, fdb_dump_filter) < 0) {
d04bc300 SH	327	perror("Cannot send dump request");
	328	exit(1);
	329	}
d04bc300	330
c7c1a1ef	331	new_json_obj(json);
0849e60a	332	if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) {
d04bc300 SH	333	fprintf(stderr, "Dump terminated\n");
	334	exit(1);
	335	}
c7c1a1ef SH	336	delete_json_obj();
c7c1a1ef SH	337	fflush(stdout);
d04bc300 SH	338
	339	return 0;
	340	}
	341
	342	static int fdb_modify(int cmd, int flags, int argc, char **argv)
	343	{
	344	struct {
df4b043f SH	345	struct nlmsghdr n;
	346	struct ndmsg ndm;
	347	char buf[256];
d17b136f PS	348	} req = {
	349	.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg)),
	350	.n.nlmsg_flags = NLM_F_REQUEST \| flags,
	351	.n.nlmsg_type = cmd,
	352	.ndm.ndm_family = PF_BRIDGE,
	353	.ndm.ndm_state = NUD_NOARP,
	354	};
d04bc300 SH	355	char *addr = NULL;
	356	char *d = NULL;
	357	char abuf[ETH_ALEN];
0849e60a SH	358	int dst_ok = 0;
0849e60a SH	359	inet_prefix dst;
5f409678 DS	360	unsigned long port = 0;
	361	unsigned long vni = ~0;
	362	unsigned int via = 0;
	363	char *endptr;
fd08839c	364	short vid = -1;
d04bc300	365
d04bc300 SH	366	while (argc > 0) {
	367	if (strcmp(*argv, "dev") == 0) {
	368	NEXT_ARG();
	369	d = *argv;
0849e60a SH	370	} else if (strcmp(*argv, "dst") == 0) {
	371	NEXT_ARG();
	372	if (dst_ok)
	373	duparg2("dst", *argv);
	374	get_addr(&dst, *argv, preferred_family);
	375	dst_ok = 1;
5f409678 DS	376	} else if (strcmp(*argv, "port") == 0) {
	377
	378	NEXT_ARG();
	379	port = strtoul(*argv, &endptr, 0);
	380	if (endptr && *endptr) {
	381	struct servent *pse;
	382
	383	pse = getservbyname(*argv, "udp");
	384	if (!pse)
	385	invarg("invalid port\n", *argv);
	386	port = ntohs(pse->s_port);
	387	} else if (port > 0xffff)
	388	invarg("invalid port\n", *argv);
	389	} else if (strcmp(*argv, "vni") == 0) {
	390	NEXT_ARG();
	391	vni = strtoul(*argv, &endptr, 0);
	392	if ((endptr && *endptr) \|\|
	393	(vni >> 24) \|\| vni == ULONG_MAX)
	394	invarg("invalid VNI\n", *argv);
	395	} else if (strcmp(*argv, "via") == 0) {
	396	NEXT_ARG();
7a14358b	397	via = ll_name_to_index(*argv);
fe99adbc SP	398	if (!via)
fe99adbc SP	399	exit(nodev(*argv));
dc6a6a25 JF	400	} else if (strcmp(*argv, "self") == 0) {
dc6a6a25 JF	401	req.ndm.ndm_flags \|= NTF_SELF;
0849e60a	402	} else if (matches(*argv, "master") == 0) {
dc6a6a25	403	req.ndm.ndm_flags \|= NTF_MASTER;
5b8a1d4a DS	404	} else if (matches(*argv, "router") == 0) {
5b8a1d4a DS	405	req.ndm.ndm_flags \|= NTF_ROUTER;
e9e9365b	406	} else if (matches(*argv, "local") == 0 \|\|
0849e60a SH	407	matches(*argv, "permanent") == 0) {
0849e60a SH	408	req.ndm.ndm_state \|= NUD_PERMANENT;
a1987cd1 RP	409	} else if (matches(*argv, "temp") == 0 \|\|
a1987cd1 RP	410	matches(*argv, "static") == 0) {
0849e60a	411	req.ndm.ndm_state \|= NUD_REACHABLE;
c6d0cfb5 RP	412	} else if (matches(*argv, "dynamic") == 0) {
	413	req.ndm.ndm_state \|= NUD_REACHABLE;
	414	req.ndm.ndm_state &= ~NUD_NOARP;
fd08839c VY	415	} else if (matches(*argv, "vlan") == 0) {
	416	if (vid >= 0)
	417	duparg2("vlan", *argv);
	418	NEXT_ARG();
	419	vid = atoi(*argv);
cd8df30b RP	420	} else if (matches(*argv, "use") == 0) {
cd8df30b RP	421	req.ndm.ndm_flags \|= NTF_USE;
b4f84bf8 RP	422	} else if (matches(*argv, "extern_learn") == 0) {
b4f84bf8 RP	423	req.ndm.ndm_flags \|= NTF_EXT_LEARNED;
c3ded6e4 NA	424	} else if (matches(*argv, "sticky") == 0) {
c3ded6e4 NA	425	req.ndm.ndm_flags \|= NTF_STICKY;
d04bc300	426	} else {
bcddcddd	427	if (strcmp(*argv, "to") == 0)
d04bc300	428	NEXT_ARG();
bcddcddd	429
0849e60a SH	430	if (matches(*argv, "help") == 0)
0849e60a SH	431	usage();
d04bc300 SH	432	if (addr)
	433	duparg2("to", *argv);
	434	addr = *argv;
	435	}
	436	argc--; argv++;
	437	}
	438
	439	if (d == NULL \|\| addr == NULL) {
	440	fprintf(stderr, "Device and address are required arguments.\n");
42ecedd4	441	return -1;
d04bc300 SH	442	}
d04bc300 SH	443
0849e60a SH	444	/* Assume self */
	445	if (!(req.ndm.ndm_flags&(NTF_SELF\|NTF_MASTER)))
	446	req.ndm.ndm_flags \|= NTF_SELF;
	447
	448	/* Assume permanent */
	449	if (!(req.ndm.ndm_state&(NUD_PERMANENT\|NUD_REACHABLE)))
	450	req.ndm.ndm_state \|= NUD_PERMANENT;
	451
	452	if (sscanf(addr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
d04bc300 SH	453	abuf, abuf+1, abuf+2,
	454	abuf+3, abuf+4, abuf+5) != 6) {
	455	fprintf(stderr, "Invalid mac address %s\n", addr);
42ecedd4	456	return -1;
d04bc300 SH	457	}
	458
	459	addattr_l(&req.n, sizeof(req), NDA_LLADDR, abuf, ETH_ALEN);
0849e60a SH	460	if (dst_ok)
0849e60a SH	461	addattr_l(&req.n, sizeof(req), NDA_DST, &dst.data, dst.bytelen);
d04bc300	462
fd08839c	463	if (vid >= 0)
8ae66094	464	addattr16(&req.n, sizeof(req), NDA_VLAN, vid);
fd08839c	465
5f409678 DS	466	if (port) {
	467	unsigned short dport;
	468
	469	dport = htons((unsigned short)port);
	470	addattr16(&req.n, sizeof(req), NDA_PORT, dport);
	471	}
	472	if (vni != ~0)
	473	addattr32(&req.n, sizeof(req), NDA_VNI, vni);
	474	if (via)
	475	addattr32(&req.n, sizeof(req), NDA_IFINDEX, via);
	476
d04bc300	477	req.ndm.ndm_ifindex = ll_name_to_index(d);
fe99adbc SP	478	if (!req.ndm.ndm_ifindex)
fe99adbc SP	479	return nodev(d);
d04bc300	480
86bf43c7	481	if (rtnl_talk(&rth, &req.n, NULL) < 0)
42ecedd4	482	return -1;
d04bc300 SH	483
	484	return 0;
	485	}
	486
	487	int do_fdb(int argc, char **argv)
	488	{
	489	ll_init_map(&rth);
	490
	491	if (argc > 0) {
	492	if (matches(*argv, "add") == 0)
	493	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_EXCL, argc-1, argv+1);
5f409678 DS	494	if (matches(*argv, "append") == 0)
5f409678 DS	495	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_APPEND, argc-1, argv+1);
5464049b TR	496	if (matches(*argv, "replace") == 0)
5464049b TR	497	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_REPLACE, argc-1, argv+1);
d04bc300 SH	498	if (matches(*argv, "delete") == 0)
	499	return fdb_modify(RTM_DELNEIGH, 0, argc-1, argv+1);
	500	if (matches(*argv, "show") == 0 \|\|
	501	matches(*argv, "lst") == 0 \|\|
	502	matches(*argv, "list") == 0)
	503	return fdb_show(argc-1, argv+1);
	504	if (matches(*argv, "help") == 0)
	505	usage();
	506	} else
	507	return fdb_show(0, NULL);
	508
083b46bb	509	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv);
d04bc300 SH	510	exit(-1);
d04bc300 SH	511	}