[mirror_iproute2.git] / bridge / mdb.c

/*
 * 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) < 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
e06c7f7e CW	1	/*
	2	* Get mdb table with netlink
	3	*/
	4
	5	#include <stdio.h>
	6	#include <stdlib.h>
	7	#include <unistd.h>
	8	#include <fcntl.h>
	9	#include <sys/socket.h>
	10	#include <net/if.h>
	11	#include <netinet/in.h>
	12	#include <linux/if_bridge.h>
	13	#include <linux/if_ether.h>
	14	#include <string.h>
	15	#include <arpa/inet.h>
44e0f6f3	16	#include <json_writer.h>
e06c7f7e CW	17
	18	#include "libnetlink.h"
	19	#include "br_common.h"
	20	#include "rt_names.h"
	21	#include "utils.h"
	22
	23	#ifndef MDBA_RTA
	24	#define MDBA_RTA(r) \
df4b043f	25	((struct rtattr )(((char )(r)) + NLMSG_ALIGN(sizeof(struct br_port_msg))))
e06c7f7e CW	26	#endif
e06c7f7e CW	27
24687d67	28	static unsigned int filter_index, filter_vlan;
44e0f6f3 NG	29	json_writer_t *jw_global;
	30	static bool print_mdb_entries = true;
	31	static bool print_mdb_router = true;
e06c7f7e CW	32
	33	static void usage(void)
	34	{
6aac8617	35	fprintf(stderr, "Usage: bridge mdb { add \| del } dev DEV port PORT grp GROUP [permanent \| temp] [vid VID]\n");
24687d67	36	fprintf(stderr, " bridge mdb {show} [ dev DEV ] [ vid VID ]\n");
e06c7f7e CW	37	exit(-1);
	38	}
	39
ba037267 NA	40	static bool is_temp_mcast_rtr(__u8 type)
	41	{
	42	return type == MDB_RTR_TYPE_TEMP_QUERY \|\| type == MDB_RTR_TYPE_TEMP;
	43	}
	44
	45	static void __print_router_port_stats(FILE f, struct rtattr pattr)
	46	{
	47	struct rtattr *tb[MDBA_ROUTER_PATTR_MAX + 1];
	48	struct timeval tv;
	49	__u8 type;
	50
	51	parse_rtattr(tb, MDBA_ROUTER_PATTR_MAX, MDB_RTR_RTA(RTA_DATA(pattr)),
	52	RTA_PAYLOAD(pattr) - RTA_ALIGN(sizeof(uint32_t)));
	53	if (tb[MDBA_ROUTER_PATTR_TIMER]) {
	54	__jiffies_to_tv(&tv,
	55	rta_getattr_u32(tb[MDBA_ROUTER_PATTR_TIMER]));
44e0f6f3 NG	56	if (jw_global) {
	57	char formatted_time[9];
	58
	59	snprintf(formatted_time, sizeof(formatted_time),
	60	"%4i.%.2i", (int)tv.tv_sec,
	61	(int)tv.tv_usec/10000);
	62	jsonw_string_field(jw_global, "timer", formatted_time);
	63	} else {
	64	fprintf(f, " %4i.%.2i",
	65	(int)tv.tv_sec, (int)tv.tv_usec/10000);
	66	}
ba037267 NA	67	}
	68	if (tb[MDBA_ROUTER_PATTR_TYPE]) {
	69	type = rta_getattr_u8(tb[MDBA_ROUTER_PATTR_TYPE]);
44e0f6f3 NG	70	if (jw_global)
	71	jsonw_string_field(jw_global, "type",
	72	is_temp_mcast_rtr(type) ? "temp" : "permanent");
	73	else
	74	fprintf(f, " %s",
	75	is_temp_mcast_rtr(type) ? "temp" : "permanent");
ba037267 NA	76	}
	77	}
	78
	79	static void br_print_router_ports(FILE f, struct rtattr attr, __u32 brifidx)
e06c7f7e CW	80	{
	81	uint32_t *port_ifindex;
	82	struct rtattr *i;
	83	int rem;
	84
	85	rem = RTA_PAYLOAD(attr);
44e0f6f3 NG	86	if (jw_global) {
	87	jsonw_name(jw_global, ll_index_to_name(brifidx));
	88	jsonw_start_array(jw_global);
	89	for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
	90	port_ifindex = RTA_DATA(i);
	91	jsonw_start_object(jw_global);
	92	jsonw_string_field(jw_global,
	93	"port",
	94	ll_index_to_name(*port_ifindex));
	95	if (show_stats)
	96	__print_router_port_stats(f, i);
	97	jsonw_end_object(jw_global);
	98	}
	99	jsonw_end_array(jw_global);
	100	} else {
	101	if (!show_stats)
	102	fprintf(f, "router ports on %s: ",
	103	ll_index_to_name(brifidx));
	104	for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
	105	port_ifindex = RTA_DATA(i);
	106	if (show_stats) {
	107	fprintf(f, "router ports on %s: %s",
	108	ll_index_to_name(brifidx),
	109	ll_index_to_name(*port_ifindex));
	110	__print_router_port_stats(f, i);
	111	fprintf(f, "\n");
	112	} else{
	113	fprintf(f, "%s ",
	114	ll_index_to_name(*port_ifindex));
	115	}
ba037267	116	}
44e0f6f3 NG	117	if (!show_stats)
44e0f6f3 NG	118	fprintf(f, "\n");
e06c7f7e	119	}
44e0f6f3 NG	120	}
	121
	122	static void start_json_mdb_flags_array(bool *mdb_flags)
	123	{
	124	if (*mdb_flags)
	125	return;
	126	jsonw_name(jw_global, "flags");
	127	jsonw_start_array(jw_global);
	128	*mdb_flags = true;
e06c7f7e CW	129	}
e06c7f7e CW	130
90d73159	131	static void print_mdb_entry(FILE f, int ifindex, struct br_mdb_entry e,
05d4f64d	132	struct nlmsghdr n, struct rtattr *tb)
e06c7f7e CW	133	{
e06c7f7e CW	134	SPRINT_BUF(abuf);
6aac8617 NA	135	const void *src;
6aac8617 NA	136	int af;
44e0f6f3	137	bool mdb_flags = false;
6aac8617	138
24687d67 NA	139	if (filter_vlan && e->vid != filter_vlan)
24687d67 NA	140	return;
6aac8617 NA	141	af = e->addr.proto == htons(ETH_P_IP) ? AF_INET : AF_INET6;
	142	src = af == AF_INET ? (const void *)&e->addr.u.ip4 :
	143	(const void *)&e->addr.u.ip6;
44e0f6f3 NG	144	if (jw_global)
	145	jsonw_start_object(jw_global);
	146	if (n->nlmsg_type == RTM_DELMDB) {
	147	if (jw_global)
	148	jsonw_string_field(jw_global, "opCode", "deleted");
	149	else
	150	fprintf(f, "Deleted ");
	151	}
	152	if (jw_global) {
	153	jsonw_string_field(jw_global, "dev", ll_index_to_name(ifindex));
	154	jsonw_string_field(jw_global,
	155	"port",
	156	ll_index_to_name(e->ifindex));
	157	jsonw_string_field(jw_global, "grp", inet_ntop(af, src,
	158	abuf, sizeof(abuf)));
	159	jsonw_string_field(jw_global, "state",
	160	(e->state & MDB_PERMANENT) ? "permanent" : "temp");
	161	if (e->flags & MDB_FLAGS_OFFLOAD) {
	162	start_json_mdb_flags_array(&mdb_flags);
	163	jsonw_string(jw_global, "offload");
	164	}
	165	if (mdb_flags)
	166	jsonw_end_array(jw_global);
	167	} else{
	168	fprintf(f, "dev %s port %s grp %s %s %s",
	169	ll_index_to_name(ifindex),
	170	ll_index_to_name(e->ifindex),
	171	inet_ntop(af, src, abuf, sizeof(abuf)),
	172	(e->state & MDB_PERMANENT) ? "permanent" : "temp",
	173	(e->flags & MDB_FLAGS_OFFLOAD) ? "offload" : "");
	174	}
	175	if (e->vid) {
	176	if (jw_global)
	177	jsonw_uint_field(jw_global, "vid", e->vid);
	178	else
	179	fprintf(f, " vid %hu", e->vid);
	180	}
05d4f64d NA	181	if (show_stats && tb && tb[MDBA_MDB_EATTR_TIMER]) {
	182	struct timeval tv;
	183
	184	__jiffies_to_tv(&tv, rta_getattr_u32(tb[MDBA_MDB_EATTR_TIMER]));
44e0f6f3 NG	185	if (jw_global) {
	186	char formatted_time[9];
	187
	188	snprintf(formatted_time, sizeof(formatted_time),
	189	"%4i.%.2i", (int)tv.tv_sec,
	190	(int)tv.tv_usec/10000);
	191	jsonw_string_field(jw_global, "timer", formatted_time);
	192	} else {
	193	fprintf(f, "%4i.%.2i", (int)tv.tv_sec,
	194	(int)tv.tv_usec/10000);
	195	}
05d4f64d	196	}
44e0f6f3 NG	197	if (jw_global)
	198	jsonw_end_object(jw_global);
	199	else
	200	fprintf(f, "\n");
e06c7f7e CW	201	}
e06c7f7e CW	202
90d73159 NA	203	static void br_print_mdb_entry(FILE f, int ifindex, struct rtattr attr,
90d73159 NA	204	struct nlmsghdr *n)
e06c7f7e	205	{
05d4f64d NA	206	struct rtattr *etb[MDBA_MDB_EATTR_MAX + 1];
05d4f64d NA	207	struct br_mdb_entry *e;
e06c7f7e CW	208	struct rtattr *i;
e06c7f7e CW	209	int rem;
e06c7f7e CW	210
	211	rem = RTA_PAYLOAD(attr);
	212	for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
	213	e = RTA_DATA(i);
05d4f64d NA	214	parse_rtattr(etb, MDBA_MDB_EATTR_MAX, MDB_RTA(RTA_DATA(i)),
	215	RTA_PAYLOAD(i) - RTA_ALIGN(sizeof(*e)));
	216	print_mdb_entry(f, ifindex, e, n, etb);
e06c7f7e CW	217	}
	218	}
	219
	220	int print_mdb(const struct sockaddr_nl who, struct nlmsghdr n, void *arg)
	221	{
	222	FILE *fp = arg;
	223	struct br_port_msg *r = NLMSG_DATA(n);
	224	int len = n->nlmsg_len;
6b4867e6	225	struct rtattr tb[MDBA_MAX+1], i;
e06c7f7e	226
4a4ee616 CW	227	if (n->nlmsg_type != RTM_GETMDB && n->nlmsg_type != RTM_NEWMDB && n->nlmsg_type != RTM_DELMDB) {
4a4ee616 CW	228	fprintf(stderr, "Not RTM_GETMDB, RTM_NEWMDB or RTM_DELMDB: %08x %08x %08x\n",
e06c7f7e CW	229	n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
	230
	231	return 0;
	232	}
	233
	234	len -= NLMSG_LENGTH(sizeof(*r));
	235	if (len < 0) {
	236	fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
	237	return -1;
	238	}
	239
	240	if (filter_index && filter_index != r->ifindex)
	241	return 0;
	242
	243	parse_rtattr(tb, MDBA_MAX, MDBA_RTA(r), n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
	244
44e0f6f3	245	if (tb[MDBA_MDB] && print_mdb_entries) {
e06c7f7e CW	246	int rem = RTA_PAYLOAD(tb[MDBA_MDB]);
	247
	248	for (i = RTA_DATA(tb[MDBA_MDB]); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
90d73159	249	br_print_mdb_entry(fp, r->ifindex, i, n);
e06c7f7e CW	250	}
e06c7f7e CW	251
44e0f6f3	252	if (tb[MDBA_ROUTER] && print_mdb_router) {
6b4867e6	253	if (n->nlmsg_type == RTM_GETMDB) {
ba037267 NA	254	if (show_details)
	255	br_print_router_ports(fp, tb[MDBA_ROUTER],
	256	r->ifindex);
6b4867e6 NA	257	} else {
	258	uint32_t *port_ifindex;
	259
	260	i = RTA_DATA(tb[MDBA_ROUTER]);
	261	port_ifindex = RTA_DATA(i);
44e0f6f3 NG	262	if (n->nlmsg_type == RTM_DELMDB) {
	263	if (jw_global)
	264	jsonw_string_field(jw_global,
	265	"opCode",
	266	"deleted");
	267	else
	268	fprintf(fp, "Deleted ");
	269	}
	270	if (jw_global) {
	271	jsonw_name(jw_global,
	272	ll_index_to_name(r->ifindex));
	273	jsonw_start_array(jw_global);
	274	jsonw_start_object(jw_global);
	275	jsonw_string_field(jw_global, "port",
	276	ll_index_to_name(*port_ifindex));
	277	jsonw_end_object(jw_global);
	278	jsonw_end_array(jw_global);
	279	} else {
	280	fprintf(fp, "router port dev %s master %s\n",
	281	ll_index_to_name(*port_ifindex),
	282	ll_index_to_name(r->ifindex));
	283	}
e06c7f7e CW	284	}
	285	}
	286
44e0f6f3 NG	287	if (!jw_global)
44e0f6f3 NG	288	fflush(fp);
4d45bf3b	289
e06c7f7e CW	290	return 0;
	291	}
	292
	293	static int mdb_show(int argc, char **argv)
	294	{
	295	char *filter_dev = NULL;
	296
	297	while (argc > 0) {
	298	if (strcmp(*argv, "dev") == 0) {
	299	NEXT_ARG();
	300	if (filter_dev)
	301	duparg("dev", *argv);
	302	filter_dev = *argv;
24687d67 NA	303	} else if (strcmp(*argv, "vid") == 0) {
	304	NEXT_ARG();
	305	if (filter_vlan)
	306	duparg("vid", *argv);
	307	filter_vlan = atoi(*argv);
e06c7f7e CW	308	}
	309	argc--; argv++;
	310	}
	311
	312	if (filter_dev) {
	313	filter_index = if_nametoindex(filter_dev);
	314	if (filter_index == 0) {
	315	fprintf(stderr, "Cannot find device \"%s\"\n",
	316	filter_dev);
	317	return -1;
	318	}
	319	}
	320
44e0f6f3 NG	321	/* get mdb entries*/
	322	if (rtnl_wilddump_request(&rth, PF_BRIDGE, RTM_GETMDB) < 0) {
	323	perror("Cannot send dump request");
	324	return -1;
	325	}
	326
	327	if (!json_output) {
	328	/* Normal output */
	329	if (rtnl_dump_filter(&rth, print_mdb, stdout) < 0) {
	330	fprintf(stderr, "Dump terminated\n");
	331	return -1;
	332	}
	333	return 0;
	334	}
	335	/* Json output */
	336	jw_global = jsonw_new(stdout);
	337	jsonw_pretty(jw_global, 1);
	338	jsonw_start_object(jw_global);
	339	jsonw_name(jw_global, "mdb");
	340	jsonw_start_array(jw_global);
	341
	342	/* print mdb entries */
	343	print_mdb_entries = true;
	344	print_mdb_router = false;
	345	if (rtnl_dump_filter(&rth, print_mdb, stdout) < 0) {
	346	fprintf(stderr, "Dump terminated\n");
	347	return -1;
	348	}
	349	jsonw_end_array(jw_global);
	350
	351	/* get router ports */
e06c7f7e CW	352	if (rtnl_wilddump_request(&rth, PF_BRIDGE, RTM_GETMDB) < 0) {
e06c7f7e CW	353	perror("Cannot send dump request");
42ecedd4	354	return -1;
e06c7f7e	355	}
44e0f6f3 NG	356	jsonw_name(jw_global, "router");
44e0f6f3 NG	357	jsonw_start_object(jw_global);
e06c7f7e	358
44e0f6f3 NG	359	/* print router ports */
	360	print_mdb_entries = false;
	361	print_mdb_router = true;
e06c7f7e CW	362	if (rtnl_dump_filter(&rth, print_mdb, stdout) < 0) {
e06c7f7e CW	363	fprintf(stderr, "Dump terminated\n");
42ecedd4	364	return -1;
e06c7f7e	365	}
44e0f6f3 NG	366	jsonw_end_object(jw_global);
	367	jsonw_end_object(jw_global);
	368	jsonw_destroy(&jw_global);
e06c7f7e CW	369
	370	return 0;
	371	}
	372
9dca6767 CW	373	static int mdb_modify(int cmd, int flags, int argc, char **argv)
	374	{
	375	struct {
df4b043f	376	struct nlmsghdr n;
9dca6767	377	struct br_port_msg bpm;
df4b043f	378	char buf[1024];
d17b136f PS	379	} req = {
	380	.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct br_port_msg)),
	381	.n.nlmsg_flags = NLM_F_REQUEST \| flags,
	382	.n.nlmsg_type = cmd,
	383	.bpm.family = PF_BRIDGE,
	384	};
	385	struct br_mdb_entry entry = {};
9dca6767	386	char d = NULL, p = NULL, *grp = NULL;
6aac8617	387	short vid = 0;
9dca6767	388
9dca6767 CW	389	while (argc > 0) {
	390	if (strcmp(*argv, "dev") == 0) {
	391	NEXT_ARG();
	392	d = *argv;
	393	} else if (strcmp(*argv, "grp") == 0) {
	394	NEXT_ARG();
	395	grp = *argv;
d8b75d1a CW	396	} else if (strcmp(*argv, "port") == 0) {
	397	NEXT_ARG();
	398	p = *argv;
	399	} else if (strcmp(*argv, "permanent") == 0) {
	400	if (cmd == RTM_NEWMDB)
	401	entry.state \|= MDB_PERMANENT;
	402	} else if (strcmp(*argv, "temp") == 0) {
	403	;/* nothing */
6aac8617 NA	404	} else if (strcmp(*argv, "vid") == 0) {
	405	NEXT_ARG();
	406	vid = atoi(*argv);
9dca6767	407	} else {
9dca6767 CW	408	if (matches(*argv, "help") == 0)
	409	usage();
	410	}
	411	argc--; argv++;
	412	}
	413
	414	if (d == NULL \|\| grp == NULL \|\| p == NULL) {
	415	fprintf(stderr, "Device, group address and port name are required arguments.\n");
42ecedd4	416	return -1;
9dca6767 CW	417	}
	418
	419	req.bpm.ifindex = ll_name_to_index(d);
	420	if (req.bpm.ifindex == 0) {
	421	fprintf(stderr, "Cannot find device \"%s\"\n", d);
	422	return -1;
	423	}
	424
	425	entry.ifindex = ll_name_to_index(p);
	426	if (entry.ifindex == 0) {
	427	fprintf(stderr, "Cannot find device \"%s\"\n", p);
	428	return -1;
	429	}
	430
	431	if (!inet_pton(AF_INET, grp, &entry.addr.u.ip4)) {
	432	if (!inet_pton(AF_INET6, grp, &entry.addr.u.ip6)) {
	433	fprintf(stderr, "Invalid address \"%s\"\n", grp);
	434	return -1;
	435	} else
	436	entry.addr.proto = htons(ETH_P_IPV6);
	437	} else
	438	entry.addr.proto = htons(ETH_P_IP);
	439
6aac8617	440	entry.vid = vid;
9dca6767 CW	441	addattr_l(&req.n, sizeof(req), MDBA_SET_ENTRY, &entry, sizeof(entry));
9dca6767 CW	442
c079e121	443	if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
42ecedd4	444	return -1;
9dca6767 CW	445
	446	return 0;
	447	}
	448
e06c7f7e CW	449	int do_mdb(int argc, char **argv)
	450	{
	451	ll_init_map(&rth);
	452
	453	if (argc > 0) {
9dca6767 CW	454	if (matches(*argv, "add") == 0)
	455	return mdb_modify(RTM_NEWMDB, NLM_F_CREATE\|NLM_F_EXCL, argc-1, argv+1);
	456	if (matches(*argv, "delete") == 0)
	457	return mdb_modify(RTM_DELMDB, 0, argc-1, argv+1);
	458
e06c7f7e CW	459	if (matches(*argv, "show") == 0 \|\|
	460	matches(*argv, "lst") == 0 \|\|
	461	matches(*argv, "list") == 0)
	462	return mdb_show(argc-1, argv+1);
	463	if (matches(*argv, "help") == 0)
	464	usage();
	465	} else
	466	return mdb_show(0, NULL);
	467
	468	fprintf(stderr, "Command \"%s\" is unknown, try \"bridge mdb help\".\n", *argv);
	469	exit(-1);
	470	}