[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 <json_writer.h>
#include <stdbool.h>

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

static unsigned int filter_index, filter_vlan, filter_state;

json_writer_t *jw_global;

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 start_json_fdb_flags_array(bool *fdb_flags)
{
	if (*fdb_flags)
		return;
	jsonw_name(jw_global, "flags");
	jsonw_start_array(jw_global);
	*fdb_flags = true;
}

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;
	bool fdb_flags = false;
	const char *state_s;

	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;

	if (jw_global) {
		jsonw_pretty(jw_global, 1);
		jsonw_start_object(jw_global);
	}

	if (n->nlmsg_type == RTM_DELNEIGH) {
		if (jw_global)
			jsonw_string_field(jw_global, "opCode", "deleted");
		else
			fprintf(fp, "Deleted ");
	}

	if (tb[NDA_LLADDR]) {
		SPRINT_BUF(b1);
		ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
			    RTA_PAYLOAD(tb[NDA_LLADDR]),
			    ll_index_to_type(r->ndm_ifindex),
			    b1, sizeof(b1));
		if (jw_global)
			jsonw_string_field(jw_global, "mac", b1);
		else
			fprintf(fp, "%s ", b1);
	}

	if (!filter_index && r->ndm_ifindex) {
		if (jw_global)
			jsonw_string_field(jw_global, "dev",
					   ll_index_to_name(r->ndm_ifindex));
		else
			fprintf(fp, "dev %s ",
				ll_index_to_name(r->ndm_ifindex));
	}

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

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

		abuf_s = format_host(family,
				     RTA_PAYLOAD(tb[NDA_DST]),
				     RTA_DATA(tb[NDA_DST]));
		if (jw_global)
			jsonw_string_field(jw_global, "dst", abuf_s);
		else
			fprintf(fp, "dst %s ", abuf_s);
	}

	if (vid) {
		if (jw_global)
			jsonw_uint_field(jw_global, "vlan", vid);
		else
			fprintf(fp, "vlan %hu ", vid);
	}

	if (tb[NDA_PORT]) {
		if (jw_global)
			jsonw_uint_field(jw_global, "port",
					 rta_getattr_be16(tb[NDA_PORT]));
		else
			fprintf(fp, "port %d ",
				rta_getattr_be16(tb[NDA_PORT]));
	}

	if (tb[NDA_VNI]) {
		if (jw_global)
			jsonw_uint_field(jw_global, "vni",
					 rta_getattr_u32(tb[NDA_VNI]));
		else
			fprintf(fp, "vni %d ",
				rta_getattr_u32(tb[NDA_VNI]));
	}

	if (tb[NDA_SRC_VNI]) {
		if (jw_global)
			jsonw_uint_field(jw_global, "src_vni",
					 rta_getattr_u32(tb[NDA_SRC_VNI]));
		else
			fprintf(fp, "src_vni %d ",
				rta_getattr_u32(tb[NDA_SRC_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)) {
				if (jw_global)
					jsonw_string_field(jw_global, "viaIf",
							   ifname);
				else
					fprintf(fp, "via %s ", ifname);
			} else {
				if (jw_global)
					jsonw_uint_field(jw_global, "viaIfIndex",
							 ifindex);
				else
					fprintf(fp, "via ifindex %u ", ifindex);
			}
		}
	}

	if (tb[NDA_LINK_NETNSID]) {
		if (jw_global)
			jsonw_uint_field(jw_global, "linkNetNsId",
					 rta_getattr_u32(tb[NDA_LINK_NETNSID]));
		else
			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();

		if (jw_global) {
			jsonw_uint_field(jw_global, "used",
				ci->ndm_used/hz);
			jsonw_uint_field(jw_global, "updated",
				ci->ndm_updated/hz);
		} else {
			fprintf(fp, "used %d/%d ", ci->ndm_used/hz,
					ci->ndm_updated/hz);
		}
	}

	if (jw_global) {
		if (r->ndm_flags & NTF_SELF) {
			start_json_fdb_flags_array(&fdb_flags);
			jsonw_string(jw_global, "self");
		}
		if (r->ndm_flags & NTF_ROUTER) {
			start_json_fdb_flags_array(&fdb_flags);
			jsonw_string(jw_global, "router");
		}
		if (r->ndm_flags & NTF_EXT_LEARNED) {
			start_json_fdb_flags_array(&fdb_flags);
			jsonw_string(jw_global, "extern_learn");
		}
		if (r->ndm_flags & NTF_OFFLOADED) {
			start_json_fdb_flags_array(&fdb_flags);
			jsonw_string(jw_global, "offload");
		}
		if (r->ndm_flags & NTF_MASTER)
			jsonw_string(jw_global, "master");
		if (fdb_flags)
			jsonw_end_array(jw_global);

		if (tb[NDA_MASTER])
			jsonw_string_field(jw_global,
					   "master",
					   ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER])));

	} else {
		if (r->ndm_flags & NTF_SELF)
			fprintf(fp, "self ");
		if (r->ndm_flags & NTF_ROUTER)
			fprintf(fp, "router ");
		if (r->ndm_flags & NTF_EXT_LEARNED)
			fprintf(fp, "extern_learn ");
		if (r->ndm_flags & NTF_OFFLOADED)
			fprintf(fp, "offload ");
		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 ");
		}
	}

	state_s = state_n2a(r->ndm_state);
	if (jw_global) {
		if (state_s[0])
			jsonw_string_field(jw_global, "state", state_s);

		jsonw_end_object(jw_global);
	} else {
		fprintf(fp, "%s\n", state_s);

		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 = 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 (json_output) {
		jw_global = jsonw_new(stdout);
		if (!jw_global) {
			fprintf(stderr, "Error allocation json object\n");
			exit(1);
		}
		jsonw_start_array(jw_global);
	}
	if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) {
		fprintf(stderr, "Dump terminated\n");
		exit(1);
	}
	if (jw_global) {
		jsonw_end_array(jw_global);
		jsonw_destroy(&jw_global);
	}

	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 = 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)
		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>
b239c56e AK	24	#include <json_writer.h>
b239c56e AK	25	#include <stdbool.h>
d04bc300 SH	26
	27	#include "libnetlink.h"
	28	#include "br_common.h"
0849e60a	29	#include "rt_names.h"
d04bc300 SH	30	#include "utils.h"
d04bc300 SH	31
7f10090b	32	static unsigned int filter_index, filter_vlan, filter_state;
d04bc300	33
b239c56e AK	34	json_writer_t *jw_global;
b239c56e AK	35
d04bc300 SH	36	static void usage(void)
d04bc300 SH	37	{
bcddcddd SH	38	fprintf(stderr,
	39	"Usage: bridge fdb { add \| append \| del \| replace } ADDR dev DEV\n"
	40	" [ self ] [ master ] [ use ] [ router ]\n"
	41	" [ local \| static \| dynamic ] [ dst IPADDR ] [ vlan VID ]\n"
	42	" [ port PORT] [ vni VNI ] [ via DEV ]\n"
	43	" bridge fdb [ show [ br BRDEV ] [ brport DEV ] [ vlan VID ] [ state STATE ] ]\n");
d04bc300 SH	44	exit(-1);
	45	}
	46
df4b043f	47	static const char *state_n2a(unsigned int s)
d04bc300 SH	48	{
	49	static char buf[32];
	50
0849e60a SH	51	if (s & NUD_PERMANENT)
0849e60a SH	52	return "permanent";
d04bc300 SH	53
	54	if (s & NUD_NOARP)
	55	return "static";
	56
	57	if (s & NUD_STALE)
	58	return "stale";
0849e60a	59
d04bc300 SH	60	if (s & NUD_REACHABLE)
	61	return "";
	62
	63	sprintf(buf, "state=%#x", s);
	64	return buf;
	65	}
	66
7f10090b NA	67	static int state_a2n(unsigned int s, const char arg)
	68	{
	69	if (matches(arg, "permanent") == 0)
	70	*s = NUD_PERMANENT;
	71	else if (matches(arg, "static") == 0 \|\| matches(arg, "temp") == 0)
	72	*s = NUD_NOARP;
	73	else if (matches(arg, "stale") == 0)
	74	*s = NUD_STALE;
	75	else if (matches(arg, "reachable") == 0 \|\| matches(arg, "dynamic") == 0)
	76	*s = NUD_REACHABLE;
	77	else if (strcmp(arg, "all") == 0)
	78	*s = ~0;
	79	else if (get_unsigned(s, arg, 0))
	80	return -1;
	81
	82	return 0;
	83	}
	84
b239c56e AK	85	static void start_json_fdb_flags_array(bool *fdb_flags)
	86	{
	87	if (*fdb_flags)
	88	return;
	89	jsonw_name(jw_global, "flags");
	90	jsonw_start_array(jw_global);
	91	*fdb_flags = true;
	92	}
	93
d04bc300 SH	94	int print_fdb(const struct sockaddr_nl who, struct nlmsghdr n, void *arg)
d04bc300 SH	95	{
0849e60a	96	FILE *fp = arg;
d04bc300 SH	97	struct ndmsg *r = NLMSG_DATA(n);
d04bc300 SH	98	int len = n->nlmsg_len;
df4b043f	99	struct rtattr *tb[NDA_MAX+1];
ae6eb907	100	__u16 vid = 0;
b239c56e AK	101	bool fdb_flags = false;
b239c56e AK	102	const char *state_s;
0849e60a SH	103
	104	if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH) {
	105	fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n",
	106	n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
0849e60a SH	107	return 0;
0849e60a SH	108	}
d04bc300 SH	109
	110	len -= NLMSG_LENGTH(sizeof(*r));
	111	if (len < 0) {
	112	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	113	return -1;
	114	}
	115
	116	if (r->ndm_family != AF_BRIDGE)
	117	return 0;
	118
	119	if (filter_index && filter_index != r->ndm_ifindex)
	120	return 0;
	121
7f10090b NA	122	if (filter_state && !(r->ndm_state & filter_state))
	123	return 0;
	124
d04bc300 SH	125	parse_rtattr(tb, NDA_MAX, NDA_RTA(r),
	126	n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
	127
ae6eb907 NA	128	if (tb[NDA_VLAN])
	129	vid = rta_getattr_u16(tb[NDA_VLAN]);
	130
	131	if (filter_vlan && filter_vlan != vid)
	132	return 0;
	133
afd3921e	134	if (jw_global) {
	135	jsonw_pretty(jw_global, 1);
	136	jsonw_start_object(jw_global);
	137	}
	138
b239c56e AK	139	if (n->nlmsg_type == RTM_DELNEIGH) {
	140	if (jw_global)
	141	jsonw_string_field(jw_global, "opCode", "deleted");
	142	else
	143	fprintf(fp, "Deleted ");
	144	}
0849e60a SH	145
	146	if (tb[NDA_LLADDR]) {
	147	SPRINT_BUF(b1);
b239c56e AK	148	ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
	149	RTA_PAYLOAD(tb[NDA_LLADDR]),
	150	ll_index_to_type(r->ndm_ifindex),
	151	b1, sizeof(b1));
	152	if (jw_global)
	153	jsonw_string_field(jw_global, "mac", b1);
	154	else
	155	fprintf(fp, "%s ", b1);
d04bc300	156	}
38df7ac9	157
b239c56e AK	158	if (!filter_index && r->ndm_ifindex) {
	159	if (jw_global)
	160	jsonw_string_field(jw_global, "dev",
	161	ll_index_to_name(r->ndm_ifindex));
	162	else
	163	fprintf(fp, "dev %s ",
	164	ll_index_to_name(r->ndm_ifindex));
	165	}
0849e60a SH	166
0849e60a SH	167	if (tb[NDA_DST]) {
9e763fa5	168	int family = AF_INET;
b239c56e	169	const char *abuf_s;
9e763fa5 MR	170
	171	if (RTA_PAYLOAD(tb[NDA_DST]) == sizeof(struct in6_addr))
	172	family = AF_INET6;
	173
b239c56e AK	174	abuf_s = format_host(family,
	175	RTA_PAYLOAD(tb[NDA_DST]),
	176	RTA_DATA(tb[NDA_DST]));
	177	if (jw_global)
	178	jsonw_string_field(jw_global, "dst", abuf_s);
	179	else
	180	fprintf(fp, "dst %s ", abuf_s);
	181	}
	182
	183	if (vid) {
	184	if (jw_global)
	185	jsonw_uint_field(jw_global, "vlan", vid);
	186	else
	187	fprintf(fp, "vlan %hu ", vid);
	188	}
	189
	190	if (tb[NDA_PORT]) {
	191	if (jw_global)
	192	jsonw_uint_field(jw_global, "port",
aab0f610	193	rta_getattr_be16(tb[NDA_PORT]));
b239c56e AK	194	else
b239c56e AK	195	fprintf(fp, "port %d ",
aab0f610	196	rta_getattr_be16(tb[NDA_PORT]));
0849e60a	197	}
38df7ac9	198
b239c56e AK	199	if (tb[NDA_VNI]) {
	200	if (jw_global)
	201	jsonw_uint_field(jw_global, "vni",
	202	rta_getattr_u32(tb[NDA_VNI]));
	203	else
	204	fprintf(fp, "vni %d ",
	205	rta_getattr_u32(tb[NDA_VNI]));
	206	}
fd08839c	207
86d0988b RP	208	if (tb[NDA_SRC_VNI]) {
	209	if (jw_global)
	210	jsonw_uint_field(jw_global, "src_vni",
	211	rta_getattr_u32(tb[NDA_SRC_VNI]));
	212	else
	213	fprintf(fp, "src_vni %d ",
	214	rta_getattr_u32(tb[NDA_SRC_VNI]));
	215	}
	216
5f409678 DS	217	if (tb[NDA_IFINDEX]) {
	218	unsigned int ifindex = rta_getattr_u32(tb[NDA_IFINDEX]);
	219
	220	if (ifindex) {
	221	char ifname[IF_NAMESIZE];
	222
a4797670	223	if (!tb[NDA_LINK_NETNSID] &&
b239c56e AK	224	if_indextoname(ifindex, ifname)) {
	225	if (jw_global)
	226	jsonw_string_field(jw_global, "viaIf",
	227	ifname);
	228	else
	229	fprintf(fp, "via %s ", ifname);
	230	} else {
	231	if (jw_global)
	232	jsonw_uint_field(jw_global, "viaIfIndex",
	233	ifindex);
	234	else
	235	fprintf(fp, "via ifindex %u ", ifindex);
	236	}
5f409678 DS	237	}
5f409678 DS	238	}
b239c56e AK	239
	240	if (tb[NDA_LINK_NETNSID]) {
	241	if (jw_global)
	242	jsonw_uint_field(jw_global, "linkNetNsId",
	243	rta_getattr_u32(tb[NDA_LINK_NETNSID]));
	244	else
	245	fprintf(fp, "link-netnsid %d ",
	246	rta_getattr_u32(tb[NDA_LINK_NETNSID]));
	247	}
5f409678	248
d04bc300 SH	249	if (show_stats && tb[NDA_CACHEINFO]) {
d04bc300 SH	250	struct nda_cacheinfo *ci = RTA_DATA(tb[NDA_CACHEINFO]);
0849e60a	251	int hz = get_user_hz();
d04bc300	252
b239c56e AK	253	if (jw_global) {
	254	jsonw_uint_field(jw_global, "used",
	255	ci->ndm_used/hz);
	256	jsonw_uint_field(jw_global, "updated",
	257	ci->ndm_updated/hz);
	258	} else {
	259	fprintf(fp, "used %d/%d ", ci->ndm_used/hz,
	260	ci->ndm_updated/hz);
	261	}
	262	}
	263
	264	if (jw_global) {
	265	if (r->ndm_flags & NTF_SELF) {
	266	start_json_fdb_flags_array(&fdb_flags);
	267	jsonw_string(jw_global, "self");
	268	}
	269	if (r->ndm_flags & NTF_ROUTER) {
	270	start_json_fdb_flags_array(&fdb_flags);
	271	jsonw_string(jw_global, "router");
	272	}
	273	if (r->ndm_flags & NTF_EXT_LEARNED) {
8a38e44f AS	274	start_json_fdb_flags_array(&fdb_flags);
	275	jsonw_string(jw_global, "extern_learn");
	276	}
	277	if (r->ndm_flags & NTF_OFFLOADED) {
b239c56e AK	278	start_json_fdb_flags_array(&fdb_flags);
	279	jsonw_string(jw_global, "offload");
	280	}
	281	if (r->ndm_flags & NTF_MASTER)
	282	jsonw_string(jw_global, "master");
	283	if (fdb_flags)
	284	jsonw_end_array(jw_global);
	285
	286	if (tb[NDA_MASTER])
	287	jsonw_string_field(jw_global,
	288	"master",
	289	ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER])));
	290
	291	} else {
	292	if (r->ndm_flags & NTF_SELF)
	293	fprintf(fp, "self ");
	294	if (r->ndm_flags & NTF_ROUTER)
	295	fprintf(fp, "router ");
	296	if (r->ndm_flags & NTF_EXT_LEARNED)
8a38e44f AS	297	fprintf(fp, "extern_learn ");
8a38e44f AS	298	if (r->ndm_flags & NTF_OFFLOADED)
b239c56e AK	299	fprintf(fp, "offload ");
	300	if (tb[NDA_MASTER]) {
	301	fprintf(fp, "master %s ",
	302	ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER])));
	303	} else if (r->ndm_flags & NTF_MASTER) {
	304	fprintf(fp, "master ");
	305	}
	306	}
	307
	308	state_s = state_n2a(r->ndm_state);
	309	if (jw_global) {
	310	if (state_s[0])
	311	jsonw_string_field(jw_global, "state", state_s);
	312
	313	jsonw_end_object(jw_global);
	314	} else {
	315	fprintf(fp, "%s\n", state_s);
	316
	317	fflush(fp);
d04bc300	318	}
4d45bf3b	319
d04bc300 SH	320	return 0;
	321	}
	322
	323	static int fdb_show(int argc, char **argv)
	324	{
aeb14eb0	325	struct {
df4b043f	326	struct nlmsghdr n;
aeb14eb0	327	struct ifinfomsg ifm;
df4b043f	328	char buf[256];
d17b136f PS	329	} req = {
	330	.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
	331	.ifm.ifi_family = PF_BRIDGE,
	332	};
aeb14eb0	333
d04bc300	334	char *filter_dev = NULL;
aeb14eb0 JHS	335	char *br = NULL;
	336	int msg_size = sizeof(struct ifinfomsg);
	337
d04bc300	338	while (argc > 0) {
aeb14eb0	339	if ((strcmp(argv, "brport") == 0) \|\| strcmp(argv, "dev") == 0) {
d04bc300	340	NEXT_ARG();
d04bc300	341	filter_dev = *argv;
aeb14eb0 JHS	342	} else if (strcmp(*argv, "br") == 0) {
	343	NEXT_ARG();
	344	br = *argv;
ae6eb907 NA	345	} else if (strcmp(*argv, "vlan") == 0) {
	346	NEXT_ARG();
	347	if (filter_vlan)
	348	duparg("vlan", *argv);
	349	filter_vlan = atoi(*argv);
7f10090b NA	350	} else if (strcmp(*argv, "state") == 0) {
	351	unsigned int state;
	352
	353	NEXT_ARG();
	354	if (state_a2n(&state, *argv))
	355	invarg("invalid state", *argv);
	356	filter_state \|= state;
aeb14eb0 JHS	357	} else {
	358	if (matches(*argv, "help") == 0)
	359	usage();
d04bc300 SH	360	}
	361	argc--; argv++;
	362	}
	363
aeb14eb0 JHS	364	if (br) {
aeb14eb0 JHS	365	int br_ifindex = ll_name_to_index(br);
df4b043f	366
aeb14eb0 JHS	367	if (br_ifindex == 0) {
	368	fprintf(stderr, "Cannot find bridge device \"%s\"\n", br);
	369	return -1;
	370	}
	371	addattr32(&req.n, sizeof(req), IFLA_MASTER, br_ifindex);
	372	msg_size += RTA_LENGTH(4);
	373	}
	374
	375	/we'll keep around filter_dev for older kernels /
d04bc300	376	if (filter_dev) {
0849e60a SH	377	filter_index = if_nametoindex(filter_dev);
	378	if (filter_index == 0) {
	379	fprintf(stderr, "Cannot find device \"%s\"\n",
	380	filter_dev);
d04bc300 SH	381	return -1;
d04bc300 SH	382	}
aeb14eb0	383	req.ifm.ifi_index = filter_index;
d04bc300 SH	384	}
d04bc300 SH	385
aeb14eb0	386	if (rtnl_dump_request(&rth, RTM_GETNEIGH, &req.ifm, msg_size) < 0) {
d04bc300 SH	387	perror("Cannot send dump request");
	388	exit(1);
	389	}
d04bc300	390
b239c56e AK	391	if (json_output) {
	392	jw_global = jsonw_new(stdout);
	393	if (!jw_global) {
	394	fprintf(stderr, "Error allocation json object\n");
	395	exit(1);
	396	}
	397	jsonw_start_array(jw_global);
	398	}
0849e60a	399	if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) {
d04bc300 SH	400	fprintf(stderr, "Dump terminated\n");
	401	exit(1);
	402	}
b239c56e AK	403	if (jw_global) {
	404	jsonw_end_array(jw_global);
	405	jsonw_destroy(&jw_global);
	406	}
d04bc300 SH	407
	408	return 0;
	409	}
	410
	411	static int fdb_modify(int cmd, int flags, int argc, char **argv)
	412	{
	413	struct {
df4b043f SH	414	struct nlmsghdr n;
	415	struct ndmsg ndm;
	416	char buf[256];
d17b136f PS	417	} req = {
	418	.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg)),
	419	.n.nlmsg_flags = NLM_F_REQUEST \| flags,
	420	.n.nlmsg_type = cmd,
	421	.ndm.ndm_family = PF_BRIDGE,
	422	.ndm.ndm_state = NUD_NOARP,
	423	};
d04bc300 SH	424	char *addr = NULL;
	425	char *d = NULL;
	426	char abuf[ETH_ALEN];
0849e60a SH	427	int dst_ok = 0;
0849e60a SH	428	inet_prefix dst;
5f409678 DS	429	unsigned long port = 0;
	430	unsigned long vni = ~0;
	431	unsigned int via = 0;
	432	char *endptr;
fd08839c	433	short vid = -1;
d04bc300	434
d04bc300 SH	435	while (argc > 0) {
	436	if (strcmp(*argv, "dev") == 0) {
	437	NEXT_ARG();
	438	d = *argv;
0849e60a SH	439	} else if (strcmp(*argv, "dst") == 0) {
	440	NEXT_ARG();
	441	if (dst_ok)
	442	duparg2("dst", *argv);
	443	get_addr(&dst, *argv, preferred_family);
	444	dst_ok = 1;
5f409678 DS	445	} else if (strcmp(*argv, "port") == 0) {
	446
	447	NEXT_ARG();
	448	port = strtoul(*argv, &endptr, 0);
	449	if (endptr && *endptr) {
	450	struct servent *pse;
	451
	452	pse = getservbyname(*argv, "udp");
	453	if (!pse)
	454	invarg("invalid port\n", *argv);
	455	port = ntohs(pse->s_port);
	456	} else if (port > 0xffff)
	457	invarg("invalid port\n", *argv);
	458	} else if (strcmp(*argv, "vni") == 0) {
	459	NEXT_ARG();
	460	vni = strtoul(*argv, &endptr, 0);
	461	if ((endptr && *endptr) \|\|
	462	(vni >> 24) \|\| vni == ULONG_MAX)
	463	invarg("invalid VNI\n", *argv);
	464	} else if (strcmp(*argv, "via") == 0) {
	465	NEXT_ARG();
	466	via = if_nametoindex(*argv);
	467	if (via == 0)
	468	invarg("invalid device\n", *argv);
dc6a6a25 JF	469	} else if (strcmp(*argv, "self") == 0) {
dc6a6a25 JF	470	req.ndm.ndm_flags \|= NTF_SELF;
0849e60a	471	} else if (matches(*argv, "master") == 0) {
dc6a6a25	472	req.ndm.ndm_flags \|= NTF_MASTER;
5b8a1d4a DS	473	} else if (matches(*argv, "router") == 0) {
5b8a1d4a DS	474	req.ndm.ndm_flags \|= NTF_ROUTER;
e9e9365b	475	} else if (matches(*argv, "local") == 0 \|\|
0849e60a SH	476	matches(*argv, "permanent") == 0) {
0849e60a SH	477	req.ndm.ndm_state \|= NUD_PERMANENT;
a1987cd1 RP	478	} else if (matches(*argv, "temp") == 0 \|\|
a1987cd1 RP	479	matches(*argv, "static") == 0) {
0849e60a	480	req.ndm.ndm_state \|= NUD_REACHABLE;
c6d0cfb5 RP	481	} else if (matches(*argv, "dynamic") == 0) {
	482	req.ndm.ndm_state \|= NUD_REACHABLE;
	483	req.ndm.ndm_state &= ~NUD_NOARP;
fd08839c VY	484	} else if (matches(*argv, "vlan") == 0) {
	485	if (vid >= 0)
	486	duparg2("vlan", *argv);
	487	NEXT_ARG();
	488	vid = atoi(*argv);
cd8df30b RP	489	} else if (matches(*argv, "use") == 0) {
cd8df30b RP	490	req.ndm.ndm_flags \|= NTF_USE;
d04bc300	491	} else {
bcddcddd	492	if (strcmp(*argv, "to") == 0)
d04bc300	493	NEXT_ARG();
bcddcddd	494
0849e60a SH	495	if (matches(*argv, "help") == 0)
0849e60a SH	496	usage();
d04bc300 SH	497	if (addr)
	498	duparg2("to", *argv);
	499	addr = *argv;
	500	}
	501	argc--; argv++;
	502	}
	503
	504	if (d == NULL \|\| addr == NULL) {
	505	fprintf(stderr, "Device and address are required arguments.\n");
42ecedd4	506	return -1;
d04bc300 SH	507	}
d04bc300 SH	508
0849e60a SH	509	/* Assume self */
	510	if (!(req.ndm.ndm_flags&(NTF_SELF\|NTF_MASTER)))
	511	req.ndm.ndm_flags \|= NTF_SELF;
	512
	513	/* Assume permanent */
	514	if (!(req.ndm.ndm_state&(NUD_PERMANENT\|NUD_REACHABLE)))
	515	req.ndm.ndm_state \|= NUD_PERMANENT;
	516
	517	if (sscanf(addr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
d04bc300 SH	518	abuf, abuf+1, abuf+2,
	519	abuf+3, abuf+4, abuf+5) != 6) {
	520	fprintf(stderr, "Invalid mac address %s\n", addr);
42ecedd4	521	return -1;
d04bc300 SH	522	}
	523
	524	addattr_l(&req.n, sizeof(req), NDA_LLADDR, abuf, ETH_ALEN);
0849e60a SH	525	if (dst_ok)
0849e60a SH	526	addattr_l(&req.n, sizeof(req), NDA_DST, &dst.data, dst.bytelen);
d04bc300	527
fd08839c	528	if (vid >= 0)
8ae66094	529	addattr16(&req.n, sizeof(req), NDA_VLAN, vid);
fd08839c	530
5f409678 DS	531	if (port) {
	532	unsigned short dport;
	533
	534	dport = htons((unsigned short)port);
	535	addattr16(&req.n, sizeof(req), NDA_PORT, dport);
	536	}
	537	if (vni != ~0)
	538	addattr32(&req.n, sizeof(req), NDA_VNI, vni);
	539	if (via)
	540	addattr32(&req.n, sizeof(req), NDA_IFINDEX, via);
	541
d04bc300 SH	542	req.ndm.ndm_ifindex = ll_name_to_index(d);
	543	if (req.ndm.ndm_ifindex == 0) {
	544	fprintf(stderr, "Cannot find device \"%s\"\n", d);
	545	return -1;
	546	}
	547
86bf43c7	548	if (rtnl_talk(&rth, &req.n, NULL) < 0)
42ecedd4	549	return -1;
d04bc300 SH	550
	551	return 0;
	552	}
	553
	554	int do_fdb(int argc, char **argv)
	555	{
	556	ll_init_map(&rth);
	557
	558	if (argc > 0) {
	559	if (matches(*argv, "add") == 0)
	560	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_EXCL, argc-1, argv+1);
5f409678 DS	561	if (matches(*argv, "append") == 0)
5f409678 DS	562	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_APPEND, argc-1, argv+1);
5464049b TR	563	if (matches(*argv, "replace") == 0)
5464049b TR	564	return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE\|NLM_F_REPLACE, argc-1, argv+1);
d04bc300 SH	565	if (matches(*argv, "delete") == 0)
	566	return fdb_modify(RTM_DELNEIGH, 0, argc-1, argv+1);
	567	if (matches(*argv, "show") == 0 \|\|
	568	matches(*argv, "lst") == 0 \|\|
	569	matches(*argv, "list") == 0)
	570	return fdb_show(argc-1, argv+1);
	571	if (matches(*argv, "help") == 0)
	572	usage();
	573	} else
	574	return fdb_show(0, NULL);
	575
083b46bb	576	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv);
d04bc300 SH	577	exit(-1);
d04bc300 SH	578	}