]>
git.proxmox.com Git - mirror_iproute2.git/blob - bridge/mdb.c
1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Get mdb table with netlink
10 #include <sys/socket.h>
12 #include <netinet/in.h>
13 #include <linux/if_bridge.h>
14 #include <linux/if_ether.h>
16 #include <arpa/inet.h>
18 #include "libnetlink.h"
19 #include "br_common.h"
22 #include "json_print.h"
26 ((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct br_port_msg))))
29 static unsigned int filter_index
, filter_vlan
;
31 static void usage(void)
33 fprintf(stderr
, "Usage: bridge mdb { add | del } dev DEV port PORT grp GROUP [permanent | temp] [vid VID]\n");
34 fprintf(stderr
, " bridge mdb {show} [ dev DEV ] [ vid VID ]\n");
38 static bool is_temp_mcast_rtr(__u8 type
)
40 return type
== MDB_RTR_TYPE_TEMP_QUERY
|| type
== MDB_RTR_TYPE_TEMP
;
43 static const char *format_timer(__u32 ticks
)
48 __jiffies_to_tv(&tv
, ticks
);
49 snprintf(tbuf
, sizeof(tbuf
), "%4lu.%.2lu",
50 (unsigned long)tv
.tv_sec
,
51 (unsigned long)tv
.tv_usec
/ 10000);
56 static void __print_router_port_stats(FILE *f
, struct rtattr
*pattr
)
58 struct rtattr
*tb
[MDBA_ROUTER_PATTR_MAX
+ 1];
60 parse_rtattr(tb
, MDBA_ROUTER_PATTR_MAX
, MDB_RTR_RTA(RTA_DATA(pattr
)),
61 RTA_PAYLOAD(pattr
) - RTA_ALIGN(sizeof(uint32_t)));
63 if (tb
[MDBA_ROUTER_PATTR_TIMER
]) {
64 __u32 timer
= rta_getattr_u32(tb
[MDBA_ROUTER_PATTR_TIMER
]);
66 print_string(PRINT_ANY
, "timer", " %s",
70 if (tb
[MDBA_ROUTER_PATTR_TYPE
]) {
71 __u8 type
= rta_getattr_u8(tb
[MDBA_ROUTER_PATTR_TYPE
]);
73 print_string(PRINT_ANY
, "type", " %s",
74 is_temp_mcast_rtr(type
) ? "temp" : "permanent");
78 static void br_print_router_ports(FILE *f
, struct rtattr
*attr
,
81 int rem
= RTA_PAYLOAD(attr
);
84 if (is_json_context())
85 open_json_array(PRINT_JSON
, brifname
);
87 fprintf(f
, "router ports on %s: ", brifname
);
89 for (i
= RTA_DATA(attr
); RTA_OK(i
, rem
); i
= RTA_NEXT(i
, rem
)) {
90 uint32_t *port_ifindex
= RTA_DATA(i
);
91 const char *port_ifname
= ll_index_to_name(*port_ifindex
);
93 if (is_json_context()) {
94 open_json_object(NULL
);
95 print_string(PRINT_JSON
, "port", NULL
, port_ifname
);
98 __print_router_port_stats(f
, i
);
100 } else if (show_stats
) {
101 fprintf(f
, "router ports on %s: %s",
102 brifname
, port_ifname
);
104 __print_router_port_stats(f
, i
);
107 fprintf(f
, "%s ", port_ifname
);
110 close_json_array(PRINT_JSON
, NULL
);
113 static void print_mdb_entry(FILE *f
, int ifindex
, const struct br_mdb_entry
*e
,
114 struct nlmsghdr
*n
, struct rtattr
**tb
)
121 if (filter_vlan
&& e
->vid
!= filter_vlan
)
124 af
= e
->addr
.proto
== htons(ETH_P_IP
) ? AF_INET
: AF_INET6
;
125 src
= af
== AF_INET
? (const void *)&e
->addr
.u
.ip4
:
126 (const void *)&e
->addr
.u
.ip6
;
127 dev
= ll_index_to_name(ifindex
);
129 open_json_object(NULL
);
131 if (n
->nlmsg_type
== RTM_DELMDB
)
132 print_bool(PRINT_ANY
, "deleted", "Deleted ", true);
135 if (is_json_context()) {
136 print_int(PRINT_JSON
, "index", NULL
, ifindex
);
137 print_string(PRINT_JSON
, "dev", NULL
, dev
);
139 fprintf(f
, "%u: ", ifindex
);
140 color_fprintf(f
, COLOR_IFNAME
, "%s ", dev
);
143 print_string(PRINT_ANY
, "port", " %s ",
144 ll_index_to_name(e
->ifindex
));
146 print_color_string(PRINT_ANY
, ifa_family_color(af
),
148 inet_ntop(af
, src
, abuf
, sizeof(abuf
)));
150 print_string(PRINT_ANY
, "state", " %s ",
151 (e
->state
& MDB_PERMANENT
) ? "permanent" : "temp");
153 open_json_array(PRINT_JSON
, "flags");
154 if (e
->flags
& MDB_FLAGS_OFFLOAD
)
155 print_string(PRINT_ANY
, NULL
, "%s ", "offload");
156 close_json_array(PRINT_JSON
, NULL
);
159 print_uint(PRINT_ANY
, "vid", " vid %u", e
->vid
);
161 if (show_stats
&& tb
&& tb
[MDBA_MDB_EATTR_TIMER
]) {
162 __u32 timer
= rta_getattr_u32(tb
[MDBA_MDB_EATTR_TIMER
]);
164 print_string(PRINT_ANY
, "timer", " %s",
165 format_timer(timer
));
170 static void br_print_mdb_entry(FILE *f
, int ifindex
, struct rtattr
*attr
,
173 struct rtattr
*etb
[MDBA_MDB_EATTR_MAX
+ 1];
174 struct br_mdb_entry
*e
;
178 rem
= RTA_PAYLOAD(attr
);
179 for (i
= RTA_DATA(attr
); RTA_OK(i
, rem
); i
= RTA_NEXT(i
, rem
)) {
181 parse_rtattr(etb
, MDBA_MDB_EATTR_MAX
, MDB_RTA(RTA_DATA(i
)),
182 RTA_PAYLOAD(i
) - RTA_ALIGN(sizeof(*e
)));
183 print_mdb_entry(f
, ifindex
, e
, n
, etb
);
187 static void print_mdb_entries(FILE *fp
, struct nlmsghdr
*n
,
188 int ifindex
, struct rtattr
*mdb
)
190 int rem
= RTA_PAYLOAD(mdb
);
193 open_json_array(PRINT_JSON
, "mdb");
194 for (i
= RTA_DATA(mdb
); RTA_OK(i
, rem
); i
= RTA_NEXT(i
, rem
))
195 br_print_mdb_entry(fp
, ifindex
, i
, n
);
196 close_json_array(PRINT_JSON
, NULL
);
199 static void print_router_entries(FILE *fp
, struct nlmsghdr
*n
,
200 int ifindex
, struct rtattr
*router
)
202 const char *brifname
= ll_index_to_name(ifindex
);
204 open_json_array(PRINT_JSON
, "router");
205 if (n
->nlmsg_type
== RTM_GETMDB
) {
207 br_print_router_ports(fp
, router
, brifname
);
209 struct rtattr
*i
= RTA_DATA(router
);
210 uint32_t *port_ifindex
= RTA_DATA(i
);
211 const char *port_name
= ll_index_to_name(*port_ifindex
);
213 if (is_json_context()) {
214 open_json_array(PRINT_JSON
, brifname
);
215 open_json_object(NULL
);
217 print_string(PRINT_JSON
, "port", NULL
,
220 close_json_array(PRINT_JSON
, NULL
);
222 fprintf(fp
, "router port dev %s master %s\n",
223 port_name
, brifname
);
226 close_json_array(PRINT_JSON
, NULL
);
229 int print_mdb(const struct sockaddr_nl
*who
, struct nlmsghdr
*n
, void *arg
)
232 struct br_port_msg
*r
= NLMSG_DATA(n
);
233 int len
= n
->nlmsg_len
;
234 struct rtattr
*tb
[MDBA_MAX
+1];
236 if (n
->nlmsg_type
!= RTM_GETMDB
&&
237 n
->nlmsg_type
!= RTM_NEWMDB
&&
238 n
->nlmsg_type
!= RTM_DELMDB
) {
240 "Not RTM_GETMDB, RTM_NEWMDB or RTM_DELMDB: %08x %08x %08x\n",
241 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
246 len
-= NLMSG_LENGTH(sizeof(*r
));
248 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
252 if (filter_index
&& filter_index
!= r
->ifindex
)
255 parse_rtattr(tb
, MDBA_MAX
, MDBA_RTA(r
), n
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
257 if (n
->nlmsg_type
== RTM_DELMDB
)
258 print_bool(PRINT_ANY
, "deleted", "Deleted ", true);
261 print_mdb_entries(fp
, n
, r
->ifindex
, tb
[MDBA_MDB
]);
264 print_router_entries(fp
, n
, r
->ifindex
, tb
[MDBA_ROUTER
]);
269 static int mdb_show(int argc
, char **argv
)
271 char *filter_dev
= NULL
;
274 if (strcmp(*argv
, "dev") == 0) {
277 duparg("dev", *argv
);
279 } else if (strcmp(*argv
, "vid") == 0) {
282 duparg("vid", *argv
);
283 filter_vlan
= atoi(*argv
);
289 filter_index
= ll_name_to_index(filter_dev
);
291 return nodev(filter_dev
);
297 if (rtnl_wilddump_request(&rth
, PF_BRIDGE
, RTM_GETMDB
) < 0) {
298 perror("Cannot send dump request");
302 if (rtnl_dump_filter(&rth
, print_mdb
, stdout
) < 0) {
303 fprintf(stderr
, "Dump terminated\n");
313 static int mdb_modify(int cmd
, int flags
, int argc
, char **argv
)
317 struct br_port_msg bpm
;
320 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(struct br_port_msg
)),
321 .n
.nlmsg_flags
= NLM_F_REQUEST
| flags
,
323 .bpm
.family
= PF_BRIDGE
,
325 struct br_mdb_entry entry
= {};
326 char *d
= NULL
, *p
= NULL
, *grp
= NULL
;
330 if (strcmp(*argv
, "dev") == 0) {
333 } else if (strcmp(*argv
, "grp") == 0) {
336 } else if (strcmp(*argv
, "port") == 0) {
339 } else if (strcmp(*argv
, "permanent") == 0) {
340 if (cmd
== RTM_NEWMDB
)
341 entry
.state
|= MDB_PERMANENT
;
342 } else if (strcmp(*argv
, "temp") == 0) {
344 } else if (strcmp(*argv
, "vid") == 0) {
348 if (matches(*argv
, "help") == 0)
354 if (d
== NULL
|| grp
== NULL
|| p
== NULL
) {
355 fprintf(stderr
, "Device, group address and port name are required arguments.\n");
359 req
.bpm
.ifindex
= ll_name_to_index(d
);
360 if (!req
.bpm
.ifindex
)
363 entry
.ifindex
= ll_name_to_index(p
);
367 if (!inet_pton(AF_INET
, grp
, &entry
.addr
.u
.ip4
)) {
368 if (!inet_pton(AF_INET6
, grp
, &entry
.addr
.u
.ip6
)) {
369 fprintf(stderr
, "Invalid address \"%s\"\n", grp
);
372 entry
.addr
.proto
= htons(ETH_P_IPV6
);
374 entry
.addr
.proto
= htons(ETH_P_IP
);
377 addattr_l(&req
.n
, sizeof(req
), MDBA_SET_ENTRY
, &entry
, sizeof(entry
));
379 if (rtnl_talk(&rth
, &req
.n
, NULL
) < 0)
385 int do_mdb(int argc
, char **argv
)
390 if (matches(*argv
, "add") == 0)
391 return mdb_modify(RTM_NEWMDB
, NLM_F_CREATE
|NLM_F_EXCL
, argc
-1, argv
+1);
392 if (matches(*argv
, "delete") == 0)
393 return mdb_modify(RTM_DELMDB
, 0, argc
-1, argv
+1);
395 if (matches(*argv
, "show") == 0 ||
396 matches(*argv
, "lst") == 0 ||
397 matches(*argv
, "list") == 0)
398 return mdb_show(argc
-1, argv
+1);
399 if (matches(*argv
, "help") == 0)
402 return mdb_show(0, NULL
);
404 fprintf(stderr
, "Command \"%s\" is unknown, try \"bridge mdb help\".\n", *argv
);