[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 ]\n"
		"              [ local | static | dynamic ] [ dst IPADDR ] [ vlan VID ]\n"
		"              [ 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");

	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 (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,
	38	"Usage: bridge fdb { add \| append \| del \| replace } ADDR dev DEV\n"
	39	" [ self ] [ master ] [ use ] [ router ]\n"
	40	" [ local \| static \| dynamic ] [ dst IPADDR ] [ vlan VID ]\n"
	41	" [ port PORT] [ vni VNI ] [ via DEV ]\n"
	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
	104	close_json_array(PRINT_JSON, NULL);
	105	}
	106
	107	static void fdb_print_stats(FILE fp, const struct nda_cacheinfo ci)
b239c56e	108	{
c7c1a1ef SH	109	static int hz;
	110
	111	if (!hz)
	112	hz = get_user_hz();
	113
	114	if (is_json_context()) {
	115	print_uint(PRINT_JSON, "used", NULL,
	116	ci->ndm_used / hz);
	117	print_uint(PRINT_JSON, "updated", NULL,
	118	ci->ndm_updated / hz);
	119	} else {
	120	fprintf(fp, "used %d/%d ", ci->ndm_used / hz,
	121	ci->ndm_updated / hz);
	122
	123	}
b239c56e AK	124	}
b239c56e AK	125
d04bc300 SH	126	int print_fdb(const struct sockaddr_nl who, struct nlmsghdr n, void *arg)
d04bc300 SH	127	{
0849e60a	128	FILE *fp = arg;
d04bc300 SH	129	struct ndmsg *r = NLMSG_DATA(n);
d04bc300 SH	130	int len = n->nlmsg_len;
df4b043f	131	struct rtattr *tb[NDA_MAX+1];
ae6eb907	132	__u16 vid = 0;
0849e60a SH	133
	134	if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH) {
	135	fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n",
	136	n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
0849e60a SH	137	return 0;
0849e60a SH	138	}
d04bc300 SH	139
	140	len -= NLMSG_LENGTH(sizeof(*r));
	141	if (len < 0) {
	142	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	143	return -1;
	144	}
	145
	146	if (r->ndm_family != AF_BRIDGE)
	147	return 0;
	148
	149	if (filter_index && filter_index != r->ndm_ifindex)
	150	return 0;
	151
7f10090b NA	152	if (filter_state && !(r->ndm_state & filter_state))
	153	return 0;
	154
d04bc300 SH	155	parse_rtattr(tb, NDA_MAX, NDA_RTA(r),
	156	n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
	157
ae6eb907 NA	158	if (tb[NDA_VLAN])
	159	vid = rta_getattr_u16(tb[NDA_VLAN]);
	160
	161	if (filter_vlan && filter_vlan != vid)
	162	return 0;
	163
c7c1a1ef SH	164	open_json_object(NULL);
	165	if (n->nlmsg_type == RTM_DELNEIGH)
	166	print_bool(PRINT_ANY, "deleted", "Deleted ", true);
0849e60a SH	167
0849e60a SH	168	if (tb[NDA_LLADDR]) {
c7c1a1ef	169	const char *lladdr;
0849e60a	170	SPRINT_BUF(b1);
c7c1a1ef SH	171
	172	lladdr = ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
	173	RTA_PAYLOAD(tb[NDA_LLADDR]),
	174	ll_index_to_type(r->ndm_ifindex),
	175	b1, sizeof(b1));
	176
	177	print_color_string(PRINT_ANY, COLOR_MAC,
	178	"mac", "%s ", lladdr);
d04bc300	179	}
38df7ac9	180
b239c56e	181	if (!filter_index && r->ndm_ifindex) {
c7c1a1ef SH	182	if (!is_json_context())
	183	fprintf(fp, "dev ");
	184	print_color_string(PRINT_ANY, COLOR_IFNAME,
	185	"ifname", "%s ",
	186	ll_index_to_name(r->ndm_ifindex));
b239c56e	187	}
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,
	201	ifa_family_color(family),
	202	"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 SH	248	if (tb[NDA_MASTER])
	249	print_string(PRINT_ANY, "master", "%s ",
	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
	259	static int fdb_show(int argc, char **argv)
	260	{
aeb14eb0	261	struct {
df4b043f	262	struct nlmsghdr n;
aeb14eb0	263	struct ifinfomsg ifm;
df4b043f	264	char buf[256];
d17b136f PS	265	} req = {
	266	.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
	267	.ifm.ifi_family = PF_BRIDGE,
	268	};
aeb14eb0	269
d04bc300	270	char *filter_dev = NULL;
aeb14eb0 JHS	271	char *br = NULL;
	272	int msg_size = sizeof(struct ifinfomsg);
	273
d04bc300	274	while (argc > 0) {
aeb14eb0	275	if ((strcmp(argv, "brport") == 0) \|\| strcmp(argv, "dev") == 0) {
d04bc300	276	NEXT_ARG();
d04bc300	277	filter_dev = *argv;
aeb14eb0 JHS	278	} else if (strcmp(*argv, "br") == 0) {
	279	NEXT_ARG();
	280	br = *argv;
ae6eb907 NA	281	} else if (strcmp(*argv, "vlan") == 0) {
	282	NEXT_ARG();
	283	if (filter_vlan)
	284	duparg("vlan", *argv);
	285	filter_vlan = atoi(*argv);
7f10090b NA	286	} else if (strcmp(*argv, "state") == 0) {
	287	unsigned int state;
	288
	289	NEXT_ARG();
	290	if (state_a2n(&state, *argv))
	291	invarg("invalid state", *argv);
	292	filter_state \|= state;
aeb14eb0 JHS	293	} else {
	294	if (matches(*argv, "help") == 0)
	295	usage();
d04bc300 SH	296	}
	297	argc--; argv++;
	298	}
	299
aeb14eb0 JHS	300	if (br) {
aeb14eb0 JHS	301	int br_ifindex = ll_name_to_index(br);
df4b043f	302
aeb14eb0 JHS	303	if (br_ifindex == 0) {
	304	fprintf(stderr, "Cannot find bridge device \"%s\"\n", br);
	305	return -1;
	306	}
	307	addattr32(&req.n, sizeof(req), IFLA_MASTER, br_ifindex);
	308	msg_size += RTA_LENGTH(4);
	309	}
	310
	311	/we'll keep around filter_dev for older kernels /
d04bc300	312	if (filter_dev) {
7a14358b	313	filter_index = ll_name_to_index(filter_dev);
fe99adbc SP	314	if (!filter_index)
fe99adbc SP	315	return nodev(filter_dev);
aeb14eb0	316	req.ifm.ifi_index = filter_index;
d04bc300 SH	317	}
d04bc300 SH	318
aeb14eb0	319	if (rtnl_dump_request(&rth, RTM_GETNEIGH, &req.ifm, msg_size) < 0) {
d04bc300 SH	320	perror("Cannot send dump request");
	321	exit(1);
	322	}
d04bc300	323
c7c1a1ef	324	new_json_obj(json);
0849e60a	325	if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) {
d04bc300 SH	326	fprintf(stderr, "Dump terminated\n");
	327	exit(1);
	328	}
c7c1a1ef SH	329	delete_json_obj();
c7c1a1ef SH	330	fflush(stdout);
d04bc300 SH	331
	332	return 0;
	333	}
	334
	335	static int fdb_modify(int cmd, int flags, int argc, char **argv)
	336	{
	337	struct {
df4b043f SH	338	struct nlmsghdr n;
	339	struct ndmsg ndm;
	340	char buf[256];
d17b136f PS	341	} req = {
	342	.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg)),
	343	.n.nlmsg_flags = NLM_F_REQUEST \| flags,
	344	.n.nlmsg_type = cmd,
	345	.ndm.ndm_family = PF_BRIDGE,
	346	.ndm.ndm_state = NUD_NOARP,
	347	};
d04bc300 SH	348	char *addr = NULL;
	349	char *d = NULL;
	350	char abuf[ETH_ALEN];
0849e60a SH	351	int dst_ok = 0;
0849e60a SH	352	inet_prefix dst;
5f409678 DS	353	unsigned long port = 0;
	354	unsigned long vni = ~0;
	355	unsigned int via = 0;
	356	char *endptr;
fd08839c	357	short vid = -1;
d04bc300	358
d04bc300 SH	359	while (argc > 0) {
	360	if (strcmp(*argv, "dev") == 0) {
	361	NEXT_ARG();
	362	d = *argv;
0849e60a SH	363	} else if (strcmp(*argv, "dst") == 0) {
	364	NEXT_ARG();
	365	if (dst_ok)
	366	duparg2("dst", *argv);
	367	get_addr(&dst, *argv, preferred_family);
	368	dst_ok = 1;
5f409678 DS	369	} else if (strcmp(*argv, "port") == 0) {
	370
	371	NEXT_ARG();
	372	port = strtoul(*argv, &endptr, 0);
	373	if (endptr && *endptr) {
	374	struct servent *pse;
	375
	376	pse = getservbyname(*argv, "udp");
	377	if (!pse)
	378	invarg("invalid port\n", *argv);
	379	port = ntohs(pse->s_port);
	380	} else if (port > 0xffff)
	381	invarg("invalid port\n", *argv);
	382	} else if (strcmp(*argv, "vni") == 0) {
	383	NEXT_ARG();
	384	vni = strtoul(*argv, &endptr, 0);
	385	if ((endptr && *endptr) \|\|
	386	(vni >> 24) \|\| vni == ULONG_MAX)
	387	invarg("invalid VNI\n", *argv);
	388	} else if (strcmp(*argv, "via") == 0) {
	389	NEXT_ARG();
7a14358b	390	via = ll_name_to_index(*argv);
fe99adbc SP	391	if (!via)
fe99adbc SP	392	exit(nodev(*argv));
dc6a6a25 JF	393	} else if (strcmp(*argv, "self") == 0) {
dc6a6a25 JF	394	req.ndm.ndm_flags \|= NTF_SELF;
0849e60a	395	} else if (matches(*argv, "master") == 0) {
dc6a6a25	396	req.ndm.ndm_flags \|= NTF_MASTER;
5b8a1d4a DS	397	} else if (matches(*argv, "router") == 0) {
5b8a1d4a DS	398	req.ndm.ndm_flags \|= NTF_ROUTER;
e9e9365b	399	} else if (matches(*argv, "local") == 0 \|\|
0849e60a SH	400	matches(*argv, "permanent") == 0) {
0849e60a SH	401	req.ndm.ndm_state \|= NUD_PERMANENT;
a1987cd1 RP	402	} else if (matches(*argv, "temp") == 0 \|\|
a1987cd1 RP	403	matches(*argv, "static") == 0) {
0849e60a	404	req.ndm.ndm_state \|= NUD_REACHABLE;
c6d0cfb5 RP	405	} else if (matches(*argv, "dynamic") == 0) {
	406	req.ndm.ndm_state \|= NUD_REACHABLE;
	407	req.ndm.ndm_state &= ~NUD_NOARP;
fd08839c VY	408	} else if (matches(*argv, "vlan") == 0) {
	409	if (vid >= 0)
	410	duparg2("vlan", *argv);
	411	NEXT_ARG();
	412	vid = atoi(*argv);
cd8df30b RP	413	} else if (matches(*argv, "use") == 0) {
cd8df30b RP	414	req.ndm.ndm_flags \|= NTF_USE;
d04bc300	415	} else {
bcddcddd	416	if (strcmp(*argv, "to") == 0)
d04bc300	417	NEXT_ARG();
bcddcddd	418
0849e60a SH	419	if (matches(*argv, "help") == 0)
0849e60a SH	420	usage();
d04bc300 SH	421	if (addr)
	422	duparg2("to", *argv);
	423	addr = *argv;
	424	}
	425	argc--; argv++;
	426	}
	427
	428	if (d == NULL \|\| addr == NULL) {
	429	fprintf(stderr, "Device and address are required arguments.\n");
42ecedd4	430	return -1;
d04bc300 SH	431	}
d04bc300 SH	432
0849e60a SH	433	/* Assume self */
	434	if (!(req.ndm.ndm_flags&(NTF_SELF\|NTF_MASTER)))
	435	req.ndm.ndm_flags \|= NTF_SELF;
	436
	437	/* Assume permanent */
	438	if (!(req.ndm.ndm_state&(NUD_PERMANENT\|NUD_REACHABLE)))
	439	req.ndm.ndm_state \|= NUD_PERMANENT;
	440
	441	if (sscanf(addr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
d04bc300 SH	442	abuf, abuf+1, abuf+2,
	443	abuf+3, abuf+4, abuf+5) != 6) {
	444	fprintf(stderr, "Invalid mac address %s\n", addr);
42ecedd4	445	return -1;
d04bc300 SH	446	}
	447
	448	addattr_l(&req.n, sizeof(req), NDA_LLADDR, abuf, ETH_ALEN);
0849e60a SH	449	if (dst_ok)
0849e60a SH	450	addattr_l(&req.n, sizeof(req), NDA_DST, &dst.data, dst.bytelen);
d04bc300	451
fd08839c	452	if (vid >= 0)
8ae66094	453	addattr16(&req.n, sizeof(req), NDA_VLAN, vid);
fd08839c	454
5f409678 DS	455	if (port) {
	456	unsigned short dport;
	457
	458	dport = htons((unsigned short)port);
	459	addattr16(&req.n, sizeof(req), NDA_PORT, dport);
	460	}
	461	if (vni != ~0)
	462	addattr32(&req.n, sizeof(req), NDA_VNI, vni);
	463	if (via)
	464	addattr32(&req.n, sizeof(req), NDA_IFINDEX, via);
	465
d04bc300	466	req.ndm.ndm_ifindex = ll_name_to_index(d);
fe99adbc SP	467	if (!req.ndm.ndm_ifindex)
fe99adbc SP	468	return nodev(d);
d04bc300	469
86bf43c7	470	if (rtnl_talk(&rth, &req.n, NULL) < 0)
42ecedd4	471	return -1;
d04bc300 SH	472
	473	return 0;
	474	}
	475
	476	int do_fdb(int argc, char **argv)
	477	{
	478	ll_init_map(&rth);
	479
	480	if (argc > 0) {
	481	if (matches(*argv, "add") == 0)
	482	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_EXCL, argc-1, argv+1);
5f409678 DS	483	if (matches(*argv, "append") == 0)
5f409678 DS	484	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_APPEND, argc-1, argv+1);
5464049b TR	485	if (matches(*argv, "replace") == 0)
5464049b TR	486	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_REPLACE, argc-1, argv+1);
d04bc300 SH	487	if (matches(*argv, "delete") == 0)
	488	return fdb_modify(RTM_DELNEIGH, 0, argc-1, argv+1);
	489	if (matches(*argv, "show") == 0 \|\|
	490	matches(*argv, "lst") == 0 \|\|
	491	matches(*argv, "list") == 0)
	492	return fdb_show(argc-1, argv+1);
	493	if (matches(*argv, "help") == 0)
	494	usage();
	495	} else
	496	return fdb_show(0, NULL);
	497
083b46bb	498	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv);
d04bc300 SH	499	exit(-1);
d04bc300 SH	500	}