[mirror_iproute2.git] / bridge / mdb.c

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Get mdb table with netlink
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <linux/if_bridge.h>
#include <linux/if_ether.h>
#include <string.h>
#include <arpa/inet.h>
#include <json_writer.h>

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

#ifndef MDBA_RTA
#define MDBA_RTA(r) \
	((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct br_port_msg))))
#endif

static unsigned int filter_index, filter_vlan;
json_writer_t *jw_global;
static bool print_mdb_entries = true;
static bool print_mdb_router = true;

static void usage(void)
{
	fprintf(stderr, "Usage: bridge mdb { add | del } dev DEV port PORT grp GROUP [permanent | temp] [vid VID]\n");
	fprintf(stderr, "       bridge mdb {show} [ dev DEV ] [ vid VID ]\n");
	exit(-1);
}

static bool is_temp_mcast_rtr(__u8 type)
{
	return type == MDB_RTR_TYPE_TEMP_QUERY || type == MDB_RTR_TYPE_TEMP;
}

static void __print_router_port_stats(FILE *f, struct rtattr *pattr)
{
	struct rtattr *tb[MDBA_ROUTER_PATTR_MAX + 1];
	struct timeval tv;
	__u8 type;

	parse_rtattr(tb, MDBA_ROUTER_PATTR_MAX, MDB_RTR_RTA(RTA_DATA(pattr)),
		     RTA_PAYLOAD(pattr) - RTA_ALIGN(sizeof(uint32_t)));
	if (tb[MDBA_ROUTER_PATTR_TIMER]) {
		__jiffies_to_tv(&tv,
				rta_getattr_u32(tb[MDBA_ROUTER_PATTR_TIMER]));
		if (jw_global) {
			char formatted_time[9];

			snprintf(formatted_time, sizeof(formatted_time),
				 "%4i.%.2i", (int)tv.tv_sec,
				 (int)tv.tv_usec/10000);
			jsonw_string_field(jw_global, "timer", formatted_time);
		} else {
			fprintf(f, " %4i.%.2i",
				(int)tv.tv_sec, (int)tv.tv_usec/10000);
		}
	}
	if (tb[MDBA_ROUTER_PATTR_TYPE]) {
		type = rta_getattr_u8(tb[MDBA_ROUTER_PATTR_TYPE]);
		if (jw_global)
			jsonw_string_field(jw_global, "type",
				is_temp_mcast_rtr(type) ? "temp" : "permanent");
		else
			fprintf(f, " %s",
				is_temp_mcast_rtr(type) ? "temp" : "permanent");
	}
}

static void br_print_router_ports(FILE *f, struct rtattr *attr, __u32 brifidx)
{
	uint32_t *port_ifindex;
	struct rtattr *i;
	int rem;

	rem = RTA_PAYLOAD(attr);
	if (jw_global) {
		jsonw_name(jw_global, ll_index_to_name(brifidx));
		jsonw_start_array(jw_global);
		for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
			port_ifindex = RTA_DATA(i);
			jsonw_start_object(jw_global);
			jsonw_string_field(jw_global,
					   "port",
					   ll_index_to_name(*port_ifindex));
			if (show_stats)
				__print_router_port_stats(f, i);
			jsonw_end_object(jw_global);
		}
		jsonw_end_array(jw_global);
	} else {
		if (!show_stats)
			fprintf(f, "router ports on %s: ",
				ll_index_to_name(brifidx));
		for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
			port_ifindex = RTA_DATA(i);
			if (show_stats) {
				fprintf(f, "router ports on %s: %s",
					ll_index_to_name(brifidx),
					ll_index_to_name(*port_ifindex));
				__print_router_port_stats(f, i);
				fprintf(f, "\n");
			} else{
				fprintf(f, "%s ",
					ll_index_to_name(*port_ifindex));
			}
		}
		if (!show_stats)
			fprintf(f, "\n");
	}
}

static void start_json_mdb_flags_array(bool *mdb_flags)
{
	if (*mdb_flags)
		return;
	jsonw_name(jw_global, "flags");
	jsonw_start_array(jw_global);
	*mdb_flags = true;
}

static void print_mdb_entry(FILE *f, int ifindex, struct br_mdb_entry *e,
			    struct nlmsghdr *n, struct rtattr **tb)
{
	SPRINT_BUF(abuf);
	const void *src;
	int af;
	bool mdb_flags = false;

	if (filter_vlan && e->vid != filter_vlan)
		return;
	af = e->addr.proto == htons(ETH_P_IP) ? AF_INET : AF_INET6;
	src = af == AF_INET ? (const void *)&e->addr.u.ip4 :
			      (const void *)&e->addr.u.ip6;
	if (jw_global)
		jsonw_start_object(jw_global);
	if (n->nlmsg_type == RTM_DELMDB) {
		if (jw_global)
			jsonw_string_field(jw_global, "opCode", "deleted");
		else
			fprintf(f, "Deleted ");
	}
	if (jw_global) {
		jsonw_string_field(jw_global, "dev", ll_index_to_name(ifindex));
		jsonw_string_field(jw_global,
				   "port",
				   ll_index_to_name(e->ifindex));
		jsonw_string_field(jw_global, "grp", inet_ntop(af, src,
			abuf, sizeof(abuf)));
		jsonw_string_field(jw_global, "state",
			(e->state & MDB_PERMANENT) ? "permanent" : "temp");
		if (e->flags & MDB_FLAGS_OFFLOAD) {
			start_json_mdb_flags_array(&mdb_flags);
			jsonw_string(jw_global, "offload");
		}
		if (mdb_flags)
			jsonw_end_array(jw_global);
	} else{
		fprintf(f, "dev %s port %s grp %s %s %s",
			ll_index_to_name(ifindex),
			ll_index_to_name(e->ifindex),
			inet_ntop(af, src, abuf, sizeof(abuf)),
			(e->state & MDB_PERMANENT) ? "permanent" : "temp",
			(e->flags & MDB_FLAGS_OFFLOAD) ? "offload" : "");
	}
	if (e->vid) {
		if (jw_global)
			jsonw_uint_field(jw_global, "vid", e->vid);
		else
			fprintf(f, " vid %hu", e->vid);
	}
	if (show_stats && tb && tb[MDBA_MDB_EATTR_TIMER]) {
		struct timeval tv;

		__jiffies_to_tv(&tv, rta_getattr_u32(tb[MDBA_MDB_EATTR_TIMER]));
		if (jw_global) {
			char formatted_time[9];

			snprintf(formatted_time, sizeof(formatted_time),
				 "%4i.%.2i", (int)tv.tv_sec,
				 (int)tv.tv_usec/10000);
			jsonw_string_field(jw_global, "timer", formatted_time);
		} else {
			fprintf(f, "%4i.%.2i", (int)tv.tv_sec,
				(int)tv.tv_usec/10000);
		}
	}
	if (jw_global)
		jsonw_end_object(jw_global);
	else
		fprintf(f, "\n");
}

static void br_print_mdb_entry(FILE *f, int ifindex, struct rtattr *attr,
			       struct nlmsghdr *n)
{
	struct rtattr *etb[MDBA_MDB_EATTR_MAX + 1];
	struct br_mdb_entry *e;
	struct rtattr *i;
	int rem;

	rem = RTA_PAYLOAD(attr);
	for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
		e = RTA_DATA(i);
		parse_rtattr(etb, MDBA_MDB_EATTR_MAX, MDB_RTA(RTA_DATA(i)),
			     RTA_PAYLOAD(i) - RTA_ALIGN(sizeof(*e)));
		print_mdb_entry(f, ifindex, e, n, etb);
	}
}

int print_mdb(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
	FILE *fp = arg;
	struct br_port_msg *r = NLMSG_DATA(n);
	int len = n->nlmsg_len;
	struct rtattr *tb[MDBA_MAX+1], *i;

	if (n->nlmsg_type != RTM_GETMDB && n->nlmsg_type != RTM_NEWMDB && n->nlmsg_type != RTM_DELMDB) {
		fprintf(stderr, "Not RTM_GETMDB, RTM_NEWMDB or RTM_DELMDB: %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 (filter_index && filter_index != r->ifindex)
		return 0;

	parse_rtattr(tb, MDBA_MAX, MDBA_RTA(r), n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));

	if (tb[MDBA_MDB] && print_mdb_entries) {
		int rem = RTA_PAYLOAD(tb[MDBA_MDB]);

		for (i = RTA_DATA(tb[MDBA_MDB]); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
			br_print_mdb_entry(fp, r->ifindex, i, n);
	}

	if (tb[MDBA_ROUTER] && print_mdb_router) {
		if (n->nlmsg_type == RTM_GETMDB) {
			if (show_details)
				br_print_router_ports(fp, tb[MDBA_ROUTER],
						      r->ifindex);
		} else {
			uint32_t *port_ifindex;

			i = RTA_DATA(tb[MDBA_ROUTER]);
			port_ifindex = RTA_DATA(i);
			if (n->nlmsg_type == RTM_DELMDB) {
				if (jw_global)
					jsonw_string_field(jw_global,
							   "opCode",
							   "deleted");
				else
					fprintf(fp, "Deleted ");
			}
			if (jw_global) {
				jsonw_name(jw_global,
					   ll_index_to_name(r->ifindex));
				jsonw_start_array(jw_global);
				jsonw_start_object(jw_global);
				jsonw_string_field(jw_global, "port",
					ll_index_to_name(*port_ifindex));
				jsonw_end_object(jw_global);
				jsonw_end_array(jw_global);
			} else {
				fprintf(fp, "router port dev %s master %s\n",
					ll_index_to_name(*port_ifindex),
					ll_index_to_name(r->ifindex));
			}
		}
	}

	if (!jw_global)
		fflush(fp);

	return 0;
}

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

	while (argc > 0) {
		if (strcmp(*argv, "dev") == 0) {
			NEXT_ARG();
			if (filter_dev)
				duparg("dev", *argv);
			filter_dev = *argv;
		} else if (strcmp(*argv, "vid") == 0) {
			NEXT_ARG();
			if (filter_vlan)
				duparg("vid", *argv);
			filter_vlan = atoi(*argv);
		}
		argc--; argv++;
	}

	if (filter_dev) {
		filter_index = if_nametoindex(filter_dev);
		if (filter_index == 0) {
			fprintf(stderr, "Cannot find device \"%s\"\n",
				filter_dev);
			return -1;
		}
	}

	/* get mdb entries*/
	if (rtnl_wilddump_request(&rth, PF_BRIDGE, RTM_GETMDB) < 0) {
		perror("Cannot send dump request");
		return -1;
	}

	if (!json_output) {
		/* Normal output */
		if (rtnl_dump_filter(&rth, print_mdb, stdout) < 0) {
			fprintf(stderr, "Dump terminated\n");
			return -1;
		}
		return 0;
	}
	/* Json output */
	jw_global = jsonw_new(stdout);
	jsonw_pretty(jw_global, 1);
	jsonw_start_object(jw_global);
	jsonw_name(jw_global, "mdb");
	jsonw_start_array(jw_global);

	/* print mdb entries */
	print_mdb_entries = true;
	print_mdb_router = false;
	if (rtnl_dump_filter(&rth, print_mdb, stdout) < 0) {
		fprintf(stderr, "Dump terminated\n");
		return -1;
	}
	jsonw_end_array(jw_global);

	/* get router ports */
	if (rtnl_wilddump_request(&rth, PF_BRIDGE, RTM_GETMDB) < 0) {
		perror("Cannot send dump request");
		return -1;
	}
	jsonw_name(jw_global, "router");
	jsonw_start_object(jw_global);

	/* print router ports */
	print_mdb_entries = false;
	print_mdb_router = true;
	if (rtnl_dump_filter(&rth, print_mdb, stdout) < 0) {
		fprintf(stderr, "Dump terminated\n");
		return -1;
	}
	jsonw_end_object(jw_global);
	jsonw_end_object(jw_global);
	jsonw_destroy(&jw_global);

	return 0;
}

static int mdb_modify(int cmd, int flags, int argc, char **argv)
{
	struct {
		struct nlmsghdr	n;
		struct br_port_msg	bpm;
		char			buf[1024];
	} req = {
		.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct br_port_msg)),
		.n.nlmsg_flags = NLM_F_REQUEST | flags,
		.n.nlmsg_type = cmd,
		.bpm.family = PF_BRIDGE,
	};
	struct br_mdb_entry entry = {};
	char *d = NULL, *p = NULL, *grp = NULL;
	short vid = 0;

	while (argc > 0) {
		if (strcmp(*argv, "dev") == 0) {
			NEXT_ARG();
			d = *argv;
		} else if (strcmp(*argv, "grp") == 0) {
			NEXT_ARG();
			grp = *argv;
		} else if (strcmp(*argv, "port") == 0) {
			NEXT_ARG();
			p = *argv;
		} else if (strcmp(*argv, "permanent") == 0) {
			if (cmd == RTM_NEWMDB)
				entry.state |= MDB_PERMANENT;
		} else if (strcmp(*argv, "temp") == 0) {
			;/* nothing */
		} else if (strcmp(*argv, "vid") == 0) {
			NEXT_ARG();
			vid = atoi(*argv);
		} else {
			if (matches(*argv, "help") == 0)
				usage();
		}
		argc--; argv++;
	}

	if (d == NULL || grp == NULL || p == NULL) {
		fprintf(stderr, "Device, group address and port name are required arguments.\n");
		return -1;
	}

	req.bpm.ifindex = ll_name_to_index(d);
	if (req.bpm.ifindex == 0) {
		fprintf(stderr, "Cannot find device \"%s\"\n", d);
		return -1;
	}

	entry.ifindex = ll_name_to_index(p);
	if (entry.ifindex == 0) {
		fprintf(stderr, "Cannot find device \"%s\"\n", p);
		return -1;
	}

	if (!inet_pton(AF_INET, grp, &entry.addr.u.ip4)) {
		if (!inet_pton(AF_INET6, grp, &entry.addr.u.ip6)) {
			fprintf(stderr, "Invalid address \"%s\"\n", grp);
			return -1;
		} else
			entry.addr.proto = htons(ETH_P_IPV6);
	} else
		entry.addr.proto = htons(ETH_P_IP);

	entry.vid = vid;
	addattr_l(&req.n, sizeof(req), MDBA_SET_ENTRY, &entry, sizeof(entry));

	if (rtnl_talk(&rth, &req.n, NULL) < 0)
		return -1;

	return 0;
}

int do_mdb(int argc, char **argv)
{
	ll_init_map(&rth);

	if (argc > 0) {
		if (matches(*argv, "add") == 0)
			return mdb_modify(RTM_NEWMDB, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
		if (matches(*argv, "delete") == 0)
			return mdb_modify(RTM_DELMDB, 0, argc-1, argv+1);

		if (matches(*argv, "show") == 0 ||
		    matches(*argv, "lst") == 0 ||
		    matches(*argv, "list") == 0)
			return mdb_show(argc-1, argv+1);
		if (matches(*argv, "help") == 0)
			usage();
	} else
		return mdb_show(0, NULL);

	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge mdb help\".\n", *argv);
	exit(-1);
}
Commit	Line	Data
6054c1eb	1	/* SPDX-License-Identifier: GPL-2.0 */
e06c7f7e CW	2	/*
	3	* Get mdb table with netlink
	4	*/
	5
	6	#include <stdio.h>
	7	#include <stdlib.h>
	8	#include <unistd.h>
	9	#include <fcntl.h>
	10	#include <sys/socket.h>
	11	#include <net/if.h>
	12	#include <netinet/in.h>
	13	#include <linux/if_bridge.h>
	14	#include <linux/if_ether.h>
	15	#include <string.h>
	16	#include <arpa/inet.h>
44e0f6f3	17	#include <json_writer.h>
e06c7f7e CW	18
	19	#include "libnetlink.h"
	20	#include "br_common.h"
	21	#include "rt_names.h"
	22	#include "utils.h"
	23
	24	#ifndef MDBA_RTA
	25	#define MDBA_RTA(r) \
df4b043f	26	((struct rtattr )(((char )(r)) + NLMSG_ALIGN(sizeof(struct br_port_msg))))
e06c7f7e CW	27	#endif
e06c7f7e CW	28
24687d67	29	static unsigned int filter_index, filter_vlan;
44e0f6f3 NG	30	json_writer_t *jw_global;
	31	static bool print_mdb_entries = true;
	32	static bool print_mdb_router = true;
e06c7f7e CW	33
	34	static void usage(void)
	35	{
6aac8617	36	fprintf(stderr, "Usage: bridge mdb { add \| del } dev DEV port PORT grp GROUP [permanent \| temp] [vid VID]\n");
24687d67	37	fprintf(stderr, " bridge mdb {show} [ dev DEV ] [ vid VID ]\n");
e06c7f7e CW	38	exit(-1);
	39	}
	40
ba037267 NA	41	static bool is_temp_mcast_rtr(__u8 type)
	42	{
	43	return type == MDB_RTR_TYPE_TEMP_QUERY \|\| type == MDB_RTR_TYPE_TEMP;
	44	}
	45
	46	static void __print_router_port_stats(FILE f, struct rtattr pattr)
	47	{
	48	struct rtattr *tb[MDBA_ROUTER_PATTR_MAX + 1];
	49	struct timeval tv;
	50	__u8 type;
	51
	52	parse_rtattr(tb, MDBA_ROUTER_PATTR_MAX, MDB_RTR_RTA(RTA_DATA(pattr)),
	53	RTA_PAYLOAD(pattr) - RTA_ALIGN(sizeof(uint32_t)));
	54	if (tb[MDBA_ROUTER_PATTR_TIMER]) {
	55	__jiffies_to_tv(&tv,
	56	rta_getattr_u32(tb[MDBA_ROUTER_PATTR_TIMER]));
44e0f6f3 NG	57	if (jw_global) {
	58	char formatted_time[9];
	59
	60	snprintf(formatted_time, sizeof(formatted_time),
	61	"%4i.%.2i", (int)tv.tv_sec,
	62	(int)tv.tv_usec/10000);
	63	jsonw_string_field(jw_global, "timer", formatted_time);
	64	} else {
	65	fprintf(f, " %4i.%.2i",
	66	(int)tv.tv_sec, (int)tv.tv_usec/10000);
	67	}
ba037267 NA	68	}
	69	if (tb[MDBA_ROUTER_PATTR_TYPE]) {
	70	type = rta_getattr_u8(tb[MDBA_ROUTER_PATTR_TYPE]);
44e0f6f3 NG	71	if (jw_global)
	72	jsonw_string_field(jw_global, "type",
	73	is_temp_mcast_rtr(type) ? "temp" : "permanent");
	74	else
	75	fprintf(f, " %s",
	76	is_temp_mcast_rtr(type) ? "temp" : "permanent");
ba037267 NA	77	}
	78	}
	79
	80	static void br_print_router_ports(FILE f, struct rtattr attr, __u32 brifidx)
e06c7f7e CW	81	{
	82	uint32_t *port_ifindex;
	83	struct rtattr *i;
	84	int rem;
	85
	86	rem = RTA_PAYLOAD(attr);
44e0f6f3 NG	87	if (jw_global) {
	88	jsonw_name(jw_global, ll_index_to_name(brifidx));
	89	jsonw_start_array(jw_global);
	90	for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
	91	port_ifindex = RTA_DATA(i);
	92	jsonw_start_object(jw_global);
	93	jsonw_string_field(jw_global,
	94	"port",
	95	ll_index_to_name(*port_ifindex));
	96	if (show_stats)
	97	__print_router_port_stats(f, i);
	98	jsonw_end_object(jw_global);
	99	}
	100	jsonw_end_array(jw_global);
	101	} else {
	102	if (!show_stats)
	103	fprintf(f, "router ports on %s: ",
	104	ll_index_to_name(brifidx));
	105	for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
	106	port_ifindex = RTA_DATA(i);
	107	if (show_stats) {
	108	fprintf(f, "router ports on %s: %s",
	109	ll_index_to_name(brifidx),
	110	ll_index_to_name(*port_ifindex));
	111	__print_router_port_stats(f, i);
	112	fprintf(f, "\n");
	113	} else{
	114	fprintf(f, "%s ",
	115	ll_index_to_name(*port_ifindex));
	116	}
ba037267	117	}
44e0f6f3 NG	118	if (!show_stats)
44e0f6f3 NG	119	fprintf(f, "\n");
e06c7f7e	120	}
44e0f6f3 NG	121	}
	122
	123	static void start_json_mdb_flags_array(bool *mdb_flags)
	124	{
	125	if (*mdb_flags)
	126	return;
	127	jsonw_name(jw_global, "flags");
	128	jsonw_start_array(jw_global);
	129	*mdb_flags = true;
e06c7f7e CW	130	}
e06c7f7e CW	131
90d73159	132	static void print_mdb_entry(FILE f, int ifindex, struct br_mdb_entry e,
05d4f64d	133	struct nlmsghdr n, struct rtattr *tb)
e06c7f7e CW	134	{
e06c7f7e CW	135	SPRINT_BUF(abuf);
6aac8617 NA	136	const void *src;
6aac8617 NA	137	int af;
44e0f6f3	138	bool mdb_flags = false;
6aac8617	139
24687d67 NA	140	if (filter_vlan && e->vid != filter_vlan)
24687d67 NA	141	return;
6aac8617 NA	142	af = e->addr.proto == htons(ETH_P_IP) ? AF_INET : AF_INET6;
	143	src = af == AF_INET ? (const void *)&e->addr.u.ip4 :
	144	(const void *)&e->addr.u.ip6;
44e0f6f3 NG	145	if (jw_global)
	146	jsonw_start_object(jw_global);
	147	if (n->nlmsg_type == RTM_DELMDB) {
	148	if (jw_global)
	149	jsonw_string_field(jw_global, "opCode", "deleted");
	150	else
	151	fprintf(f, "Deleted ");
	152	}
	153	if (jw_global) {
	154	jsonw_string_field(jw_global, "dev", ll_index_to_name(ifindex));
	155	jsonw_string_field(jw_global,
	156	"port",
	157	ll_index_to_name(e->ifindex));
	158	jsonw_string_field(jw_global, "grp", inet_ntop(af, src,
	159	abuf, sizeof(abuf)));
	160	jsonw_string_field(jw_global, "state",
	161	(e->state & MDB_PERMANENT) ? "permanent" : "temp");
	162	if (e->flags & MDB_FLAGS_OFFLOAD) {
	163	start_json_mdb_flags_array(&mdb_flags);
	164	jsonw_string(jw_global, "offload");
	165	}
	166	if (mdb_flags)
	167	jsonw_end_array(jw_global);
	168	} else{
	169	fprintf(f, "dev %s port %s grp %s %s %s",
	170	ll_index_to_name(ifindex),
	171	ll_index_to_name(e->ifindex),
	172	inet_ntop(af, src, abuf, sizeof(abuf)),
	173	(e->state & MDB_PERMANENT) ? "permanent" : "temp",
	174	(e->flags & MDB_FLAGS_OFFLOAD) ? "offload" : "");
	175	}
	176	if (e->vid) {
	177	if (jw_global)
	178	jsonw_uint_field(jw_global, "vid", e->vid);
	179	else
	180	fprintf(f, " vid %hu", e->vid);
	181	}
05d4f64d NA	182	if (show_stats && tb && tb[MDBA_MDB_EATTR_TIMER]) {
	183	struct timeval tv;
	184
	185	__jiffies_to_tv(&tv, rta_getattr_u32(tb[MDBA_MDB_EATTR_TIMER]));
44e0f6f3 NG	186	if (jw_global) {
	187	char formatted_time[9];
	188
	189	snprintf(formatted_time, sizeof(formatted_time),
	190	"%4i.%.2i", (int)tv.tv_sec,
	191	(int)tv.tv_usec/10000);
	192	jsonw_string_field(jw_global, "timer", formatted_time);
	193	} else {
	194	fprintf(f, "%4i.%.2i", (int)tv.tv_sec,
	195	(int)tv.tv_usec/10000);
	196	}
05d4f64d	197	}
44e0f6f3 NG	198	if (jw_global)
	199	jsonw_end_object(jw_global);
	200	else
	201	fprintf(f, "\n");
e06c7f7e CW	202	}
e06c7f7e CW	203
90d73159 NA	204	static void br_print_mdb_entry(FILE f, int ifindex, struct rtattr attr,
90d73159 NA	205	struct nlmsghdr *n)
e06c7f7e	206	{
05d4f64d NA	207	struct rtattr *etb[MDBA_MDB_EATTR_MAX + 1];
05d4f64d NA	208	struct br_mdb_entry *e;
e06c7f7e CW	209	struct rtattr *i;
e06c7f7e CW	210	int rem;
e06c7f7e CW	211
	212	rem = RTA_PAYLOAD(attr);
	213	for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
	214	e = RTA_DATA(i);
05d4f64d NA	215	parse_rtattr(etb, MDBA_MDB_EATTR_MAX, MDB_RTA(RTA_DATA(i)),
	216	RTA_PAYLOAD(i) - RTA_ALIGN(sizeof(*e)));
	217	print_mdb_entry(f, ifindex, e, n, etb);
e06c7f7e CW	218	}
	219	}
	220
	221	int print_mdb(const struct sockaddr_nl who, struct nlmsghdr n, void *arg)
	222	{
	223	FILE *fp = arg;
	224	struct br_port_msg *r = NLMSG_DATA(n);
	225	int len = n->nlmsg_len;
6b4867e6	226	struct rtattr tb[MDBA_MAX+1], i;
e06c7f7e	227
4a4ee616 CW	228	if (n->nlmsg_type != RTM_GETMDB && n->nlmsg_type != RTM_NEWMDB && n->nlmsg_type != RTM_DELMDB) {
4a4ee616 CW	229	fprintf(stderr, "Not RTM_GETMDB, RTM_NEWMDB or RTM_DELMDB: %08x %08x %08x\n",
e06c7f7e CW	230	n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
	231
	232	return 0;
	233	}
	234
	235	len -= NLMSG_LENGTH(sizeof(*r));
	236	if (len < 0) {
	237	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	238	return -1;
	239	}
	240
	241	if (filter_index && filter_index != r->ifindex)
	242	return 0;
	243
	244	parse_rtattr(tb, MDBA_MAX, MDBA_RTA(r), n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
	245
44e0f6f3	246	if (tb[MDBA_MDB] && print_mdb_entries) {
e06c7f7e CW	247	int rem = RTA_PAYLOAD(tb[MDBA_MDB]);
	248
	249	for (i = RTA_DATA(tb[MDBA_MDB]); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
90d73159	250	br_print_mdb_entry(fp, r->ifindex, i, n);
e06c7f7e CW	251	}
e06c7f7e CW	252
44e0f6f3	253	if (tb[MDBA_ROUTER] && print_mdb_router) {
6b4867e6	254	if (n->nlmsg_type == RTM_GETMDB) {
ba037267 NA	255	if (show_details)
	256	br_print_router_ports(fp, tb[MDBA_ROUTER],
	257	r->ifindex);
6b4867e6 NA	258	} else {
	259	uint32_t *port_ifindex;
	260
	261	i = RTA_DATA(tb[MDBA_ROUTER]);
	262	port_ifindex = RTA_DATA(i);
44e0f6f3 NG	263	if (n->nlmsg_type == RTM_DELMDB) {
	264	if (jw_global)
	265	jsonw_string_field(jw_global,
	266	"opCode",
	267	"deleted");
	268	else
	269	fprintf(fp, "Deleted ");
	270	}
	271	if (jw_global) {
	272	jsonw_name(jw_global,
	273	ll_index_to_name(r->ifindex));
	274	jsonw_start_array(jw_global);
	275	jsonw_start_object(jw_global);
	276	jsonw_string_field(jw_global, "port",
	277	ll_index_to_name(*port_ifindex));
	278	jsonw_end_object(jw_global);
	279	jsonw_end_array(jw_global);
	280	} else {
	281	fprintf(fp, "router port dev %s master %s\n",
	282	ll_index_to_name(*port_ifindex),
	283	ll_index_to_name(r->ifindex));
	284	}
e06c7f7e CW	285	}
	286	}
	287
44e0f6f3 NG	288	if (!jw_global)
44e0f6f3 NG	289	fflush(fp);
4d45bf3b	290
e06c7f7e CW	291	return 0;
	292	}
	293
	294	static int mdb_show(int argc, char **argv)
	295	{
	296	char *filter_dev = NULL;
	297
	298	while (argc > 0) {
	299	if (strcmp(*argv, "dev") == 0) {
	300	NEXT_ARG();
	301	if (filter_dev)
	302	duparg("dev", *argv);
	303	filter_dev = *argv;
24687d67 NA	304	} else if (strcmp(*argv, "vid") == 0) {
	305	NEXT_ARG();
	306	if (filter_vlan)
	307	duparg("vid", *argv);
	308	filter_vlan = atoi(*argv);
e06c7f7e CW	309	}
	310	argc--; argv++;
	311	}
	312
	313	if (filter_dev) {
	314	filter_index = if_nametoindex(filter_dev);
	315	if (filter_index == 0) {
	316	fprintf(stderr, "Cannot find device \"%s\"\n",
	317	filter_dev);
	318	return -1;
	319	}
	320	}
	321
44e0f6f3 NG	322	/* get mdb entries*/
	323	if (rtnl_wilddump_request(&rth, PF_BRIDGE, RTM_GETMDB) < 0) {
	324	perror("Cannot send dump request");
	325	return -1;
	326	}
	327
	328	if (!json_output) {
	329	/* Normal output */
	330	if (rtnl_dump_filter(&rth, print_mdb, stdout) < 0) {
	331	fprintf(stderr, "Dump terminated\n");
	332	return -1;
	333	}
	334	return 0;
	335	}
	336	/* Json output */
	337	jw_global = jsonw_new(stdout);
	338	jsonw_pretty(jw_global, 1);
	339	jsonw_start_object(jw_global);
	340	jsonw_name(jw_global, "mdb");
	341	jsonw_start_array(jw_global);
	342
	343	/* print mdb entries */
	344	print_mdb_entries = true;
	345	print_mdb_router = false;
	346	if (rtnl_dump_filter(&rth, print_mdb, stdout) < 0) {
	347	fprintf(stderr, "Dump terminated\n");
	348	return -1;
	349	}
	350	jsonw_end_array(jw_global);
	351
	352	/* get router ports */
e06c7f7e CW	353	if (rtnl_wilddump_request(&rth, PF_BRIDGE, RTM_GETMDB) < 0) {
e06c7f7e CW	354	perror("Cannot send dump request");
42ecedd4	355	return -1;
e06c7f7e	356	}
44e0f6f3 NG	357	jsonw_name(jw_global, "router");
44e0f6f3 NG	358	jsonw_start_object(jw_global);
e06c7f7e	359
44e0f6f3 NG	360	/* print router ports */
	361	print_mdb_entries = false;
	362	print_mdb_router = true;
e06c7f7e CW	363	if (rtnl_dump_filter(&rth, print_mdb, stdout) < 0) {
e06c7f7e CW	364	fprintf(stderr, "Dump terminated\n");
42ecedd4	365	return -1;
e06c7f7e	366	}
44e0f6f3 NG	367	jsonw_end_object(jw_global);
	368	jsonw_end_object(jw_global);
	369	jsonw_destroy(&jw_global);
e06c7f7e CW	370
	371	return 0;
	372	}
	373
9dca6767 CW	374	static int mdb_modify(int cmd, int flags, int argc, char **argv)
	375	{
	376	struct {
df4b043f	377	struct nlmsghdr n;
9dca6767	378	struct br_port_msg bpm;
df4b043f	379	char buf[1024];
d17b136f PS	380	} req = {
	381	.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct br_port_msg)),
	382	.n.nlmsg_flags = NLM_F_REQUEST \| flags,
	383	.n.nlmsg_type = cmd,
	384	.bpm.family = PF_BRIDGE,
	385	};
	386	struct br_mdb_entry entry = {};
9dca6767	387	char d = NULL, p = NULL, *grp = NULL;
6aac8617	388	short vid = 0;
9dca6767	389
9dca6767 CW	390	while (argc > 0) {
	391	if (strcmp(*argv, "dev") == 0) {
	392	NEXT_ARG();
	393	d = *argv;
	394	} else if (strcmp(*argv, "grp") == 0) {
	395	NEXT_ARG();
	396	grp = *argv;
d8b75d1a CW	397	} else if (strcmp(*argv, "port") == 0) {
	398	NEXT_ARG();
	399	p = *argv;
	400	} else if (strcmp(*argv, "permanent") == 0) {
	401	if (cmd == RTM_NEWMDB)
	402	entry.state \|= MDB_PERMANENT;
	403	} else if (strcmp(*argv, "temp") == 0) {
	404	;/* nothing */
6aac8617 NA	405	} else if (strcmp(*argv, "vid") == 0) {
	406	NEXT_ARG();
	407	vid = atoi(*argv);
9dca6767	408	} else {
9dca6767 CW	409	if (matches(*argv, "help") == 0)
	410	usage();
	411	}
	412	argc--; argv++;
	413	}
	414
	415	if (d == NULL \|\| grp == NULL \|\| p == NULL) {
	416	fprintf(stderr, "Device, group address and port name are required arguments.\n");
42ecedd4	417	return -1;
9dca6767 CW	418	}
	419
	420	req.bpm.ifindex = ll_name_to_index(d);
	421	if (req.bpm.ifindex == 0) {
	422	fprintf(stderr, "Cannot find device \"%s\"\n", d);
	423	return -1;
	424	}
	425
	426	entry.ifindex = ll_name_to_index(p);
	427	if (entry.ifindex == 0) {
	428	fprintf(stderr, "Cannot find device \"%s\"\n", p);
	429	return -1;
	430	}
	431
	432	if (!inet_pton(AF_INET, grp, &entry.addr.u.ip4)) {
	433	if (!inet_pton(AF_INET6, grp, &entry.addr.u.ip6)) {
	434	fprintf(stderr, "Invalid address \"%s\"\n", grp);
	435	return -1;
	436	} else
	437	entry.addr.proto = htons(ETH_P_IPV6);
	438	} else
	439	entry.addr.proto = htons(ETH_P_IP);
	440
6aac8617	441	entry.vid = vid;
9dca6767 CW	442	addattr_l(&req.n, sizeof(req), MDBA_SET_ENTRY, &entry, sizeof(entry));
9dca6767 CW	443
86bf43c7	444	if (rtnl_talk(&rth, &req.n, NULL) < 0)
42ecedd4	445	return -1;
9dca6767 CW	446
	447	return 0;
	448	}
	449
e06c7f7e CW	450	int do_mdb(int argc, char **argv)
	451	{
	452	ll_init_map(&rth);
	453
	454	if (argc > 0) {
9dca6767 CW	455	if (matches(*argv, "add") == 0)
	456	return mdb_modify(RTM_NEWMDB, NLM_F_CREATE\|NLM_F_EXCL, argc-1, argv+1);
	457	if (matches(*argv, "delete") == 0)
	458	return mdb_modify(RTM_DELMDB, 0, argc-1, argv+1);
	459
e06c7f7e CW	460	if (matches(*argv, "show") == 0 \|\|
	461	matches(*argv, "lst") == 0 \|\|
	462	matches(*argv, "list") == 0)
	463	return mdb_show(argc-1, argv+1);
	464	if (matches(*argv, "help") == 0)
	465	usage();
	466	} else
	467	return mdb_show(0, NULL);
	468
	469	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge mdb help\".\n", *argv);
	470	exit(-1);
	471	}