]>
git.proxmox.com Git - mirror_iproute2.git/blob - bridge/mdb.c
2 * Get mdb table with netlink
9 #include <sys/socket.h>
11 #include <netinet/in.h>
12 #include <linux/if_bridge.h>
13 #include <linux/if_ether.h>
15 #include <arpa/inet.h>
16 #include <json_writer.h>
18 #include "libnetlink.h"
19 #include "br_common.h"
25 ((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct br_port_msg))))
28 static unsigned int filter_index
, filter_vlan
;
29 json_writer_t
*jw_global
;
30 static bool print_mdb_entries
= true;
31 static bool print_mdb_router
= true;
33 static void usage(void)
35 fprintf(stderr
, "Usage: bridge mdb { add | del } dev DEV port PORT grp GROUP [permanent | temp] [vid VID]\n");
36 fprintf(stderr
, " bridge mdb {show} [ dev DEV ] [ vid VID ]\n");
40 static bool is_temp_mcast_rtr(__u8 type
)
42 return type
== MDB_RTR_TYPE_TEMP_QUERY
|| type
== MDB_RTR_TYPE_TEMP
;
45 static void __print_router_port_stats(FILE *f
, struct rtattr
*pattr
)
47 struct rtattr
*tb
[MDBA_ROUTER_PATTR_MAX
+ 1];
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
]) {
55 rta_getattr_u32(tb
[MDBA_ROUTER_PATTR_TIMER
]));
57 char formatted_time
[9];
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
);
64 fprintf(f
, " %4i.%.2i",
65 (int)tv
.tv_sec
, (int)tv
.tv_usec
/10000);
68 if (tb
[MDBA_ROUTER_PATTR_TYPE
]) {
69 type
= rta_getattr_u8(tb
[MDBA_ROUTER_PATTR_TYPE
]);
71 jsonw_string_field(jw_global
, "type",
72 is_temp_mcast_rtr(type
) ? "temp" : "permanent");
75 is_temp_mcast_rtr(type
) ? "temp" : "permanent");
79 static void br_print_router_ports(FILE *f
, struct rtattr
*attr
, __u32 brifidx
)
81 uint32_t *port_ifindex
;
85 rem
= RTA_PAYLOAD(attr
);
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
,
94 ll_index_to_name(*port_ifindex
));
96 __print_router_port_stats(f
, i
);
97 jsonw_end_object(jw_global
);
99 jsonw_end_array(jw_global
);
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
);
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
);
114 ll_index_to_name(*port_ifindex
));
122 static void start_json_mdb_flags_array(bool *mdb_flags
)
126 jsonw_name(jw_global
, "flags");
127 jsonw_start_array(jw_global
);
131 static void print_mdb_entry(FILE *f
, int ifindex
, struct br_mdb_entry
*e
,
132 struct nlmsghdr
*n
, struct rtattr
**tb
)
137 bool mdb_flags
= false;
139 if (filter_vlan
&& e
->vid
!= filter_vlan
)
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
;
145 jsonw_start_object(jw_global
);
146 if (n
->nlmsg_type
== RTM_DELMDB
) {
148 jsonw_string_field(jw_global
, "opCode", "deleted");
150 fprintf(f
, "Deleted ");
153 jsonw_string_field(jw_global
, "dev", ll_index_to_name(ifindex
));
154 jsonw_string_field(jw_global
,
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");
166 jsonw_end_array(jw_global
);
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" : "");
177 jsonw_uint_field(jw_global
, "vid", e
->vid
);
179 fprintf(f
, " vid %hu", e
->vid
);
181 if (show_stats
&& tb
&& tb
[MDBA_MDB_EATTR_TIMER
]) {
184 __jiffies_to_tv(&tv
, rta_getattr_u32(tb
[MDBA_MDB_EATTR_TIMER
]));
186 char formatted_time
[9];
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
);
193 fprintf(f
, "%4i.%.2i", (int)tv
.tv_sec
,
194 (int)tv
.tv_usec
/10000);
198 jsonw_end_object(jw_global
);
203 static void br_print_mdb_entry(FILE *f
, int ifindex
, struct rtattr
*attr
,
206 struct rtattr
*etb
[MDBA_MDB_EATTR_MAX
+ 1];
207 struct br_mdb_entry
*e
;
211 rem
= RTA_PAYLOAD(attr
);
212 for (i
= RTA_DATA(attr
); RTA_OK(i
, rem
); i
= RTA_NEXT(i
, rem
)) {
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
);
220 int print_mdb(const struct sockaddr_nl
*who
, struct nlmsghdr
*n
, void *arg
)
223 struct br_port_msg
*r
= NLMSG_DATA(n
);
224 int len
= n
->nlmsg_len
;
225 struct rtattr
*tb
[MDBA_MAX
+1], *i
;
227 if (n
->nlmsg_type
!= RTM_GETMDB
&& n
->nlmsg_type
!= RTM_NEWMDB
&& n
->nlmsg_type
!= RTM_DELMDB
) {
228 fprintf(stderr
, "Not RTM_GETMDB, RTM_NEWMDB or RTM_DELMDB: %08x %08x %08x\n",
229 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
234 len
-= NLMSG_LENGTH(sizeof(*r
));
236 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
240 if (filter_index
&& filter_index
!= r
->ifindex
)
243 parse_rtattr(tb
, MDBA_MAX
, MDBA_RTA(r
), n
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
245 if (tb
[MDBA_MDB
] && print_mdb_entries
) {
246 int rem
= RTA_PAYLOAD(tb
[MDBA_MDB
]);
248 for (i
= RTA_DATA(tb
[MDBA_MDB
]); RTA_OK(i
, rem
); i
= RTA_NEXT(i
, rem
))
249 br_print_mdb_entry(fp
, r
->ifindex
, i
, n
);
252 if (tb
[MDBA_ROUTER
] && print_mdb_router
) {
253 if (n
->nlmsg_type
== RTM_GETMDB
) {
255 br_print_router_ports(fp
, tb
[MDBA_ROUTER
],
258 uint32_t *port_ifindex
;
260 i
= RTA_DATA(tb
[MDBA_ROUTER
]);
261 port_ifindex
= RTA_DATA(i
);
262 if (n
->nlmsg_type
== RTM_DELMDB
) {
264 jsonw_string_field(jw_global
,
268 fprintf(fp
, "Deleted ");
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
);
280 fprintf(fp
, "router port dev %s master %s\n",
281 ll_index_to_name(*port_ifindex
),
282 ll_index_to_name(r
->ifindex
));
293 static int mdb_show(int argc
, char **argv
)
295 char *filter_dev
= NULL
;
298 if (strcmp(*argv
, "dev") == 0) {
301 duparg("dev", *argv
);
303 } else if (strcmp(*argv
, "vid") == 0) {
306 duparg("vid", *argv
);
307 filter_vlan
= atoi(*argv
);
313 filter_index
= if_nametoindex(filter_dev
);
314 if (filter_index
== 0) {
315 fprintf(stderr
, "Cannot find device \"%s\"\n",
322 if (rtnl_wilddump_request(&rth
, PF_BRIDGE
, RTM_GETMDB
) < 0) {
323 perror("Cannot send dump request");
329 if (rtnl_dump_filter(&rth
, print_mdb
, stdout
) < 0) {
330 fprintf(stderr
, "Dump terminated\n");
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
);
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");
349 jsonw_end_array(jw_global
);
351 /* get router ports */
352 if (rtnl_wilddump_request(&rth
, PF_BRIDGE
, RTM_GETMDB
) < 0) {
353 perror("Cannot send dump request");
356 jsonw_name(jw_global
, "router");
357 jsonw_start_object(jw_global
);
359 /* print router ports */
360 print_mdb_entries
= false;
361 print_mdb_router
= true;
362 if (rtnl_dump_filter(&rth
, print_mdb
, stdout
) < 0) {
363 fprintf(stderr
, "Dump terminated\n");
366 jsonw_end_object(jw_global
);
367 jsonw_end_object(jw_global
);
368 jsonw_destroy(&jw_global
);
373 static int mdb_modify(int cmd
, int flags
, int argc
, char **argv
)
377 struct br_port_msg bpm
;
380 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(struct br_port_msg
)),
381 .n
.nlmsg_flags
= NLM_F_REQUEST
| flags
,
383 .bpm
.family
= PF_BRIDGE
,
385 struct br_mdb_entry entry
= {};
386 char *d
= NULL
, *p
= NULL
, *grp
= NULL
;
390 if (strcmp(*argv
, "dev") == 0) {
393 } else if (strcmp(*argv
, "grp") == 0) {
396 } else if (strcmp(*argv
, "port") == 0) {
399 } else if (strcmp(*argv
, "permanent") == 0) {
400 if (cmd
== RTM_NEWMDB
)
401 entry
.state
|= MDB_PERMANENT
;
402 } else if (strcmp(*argv
, "temp") == 0) {
404 } else if (strcmp(*argv
, "vid") == 0) {
408 if (matches(*argv
, "help") == 0)
414 if (d
== NULL
|| grp
== NULL
|| p
== NULL
) {
415 fprintf(stderr
, "Device, group address and port name are required arguments.\n");
419 req
.bpm
.ifindex
= ll_name_to_index(d
);
420 if (req
.bpm
.ifindex
== 0) {
421 fprintf(stderr
, "Cannot find device \"%s\"\n", d
);
425 entry
.ifindex
= ll_name_to_index(p
);
426 if (entry
.ifindex
== 0) {
427 fprintf(stderr
, "Cannot find device \"%s\"\n", p
);
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
);
436 entry
.addr
.proto
= htons(ETH_P_IPV6
);
438 entry
.addr
.proto
= htons(ETH_P_IP
);
441 addattr_l(&req
.n
, sizeof(req
), MDBA_SET_ENTRY
, &entry
, sizeof(entry
));
443 if (rtnl_talk(&rth
, &req
.n
, NULL
, 0) < 0)
449 int do_mdb(int argc
, char **argv
)
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);
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)
466 return mdb_show(0, NULL
);
468 fprintf(stderr
, "Command \"%s\" is unknown, try \"bridge mdb help\".\n", *argv
);