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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 |
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) |
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 | } |
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 | { |
134 | SPRINT_BUF(abuf); | |
6aac8617 NA |
135 | const void *src; |
136 | int af; | |
44e0f6f3 | 137 | bool mdb_flags = false; |
6aac8617 | 138 | |
24687d67 NA |
139 | if (filter_vlan && e->vid != filter_vlan) |
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 | } |
202 | ||
90d73159 NA |
203 | static void br_print_mdb_entry(FILE *f, int ifindex, struct rtattr *attr, |
204 | struct nlmsghdr *n) | |
e06c7f7e | 205 | { |
05d4f64d NA |
206 | struct rtattr *etb[MDBA_MDB_EATTR_MAX + 1]; |
207 | struct br_mdb_entry *e; | |
e06c7f7e CW |
208 | struct rtattr *i; |
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) { |
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 | } |
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) |
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) { |
353 | perror("Cannot send dump request"); | |
42ecedd4 | 354 | return -1; |
e06c7f7e | 355 | } |
44e0f6f3 NG |
356 | jsonw_name(jw_global, "router"); |
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) { |
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)); |
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 | } |