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8c39db39 JP |
1 | /* |
2 | * iplink_bridge_slave.c Bridge slave device support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version | |
7 | * 2 of the License, or (at your option) any later version. | |
8 | * | |
9 | * Authors: Jiri Pirko <jiri@resnulli.us> | |
10 | */ | |
11 | ||
12 | #include <stdio.h> | |
13 | #include <sys/socket.h> | |
14 | #include <netinet/in.h> | |
15 | #include <linux/if_link.h> | |
16 | #include <linux/if_bridge.h> | |
17 | ||
18 | #include "rt_names.h" | |
19 | #include "utils.h" | |
20 | #include "ip_common.h" | |
21 | ||
a560d850 | 22 | static void print_explain(FILE *f) |
8c39db39 | 23 | { |
a560d850 | 24 | fprintf(f, |
d1b41236 HL |
25 | "Usage: ... bridge_slave [ fdb_flush ]\n" |
26 | " [ state STATE ]\n" | |
27 | " [ priority PRIO ]\n" | |
28 | " [ cost COST ]\n" | |
8c39db39 | 29 | " [ guard {on | off} ]\n" |
56f5daac | 30 | " [ hairpin {on | off} ]\n" |
8c39db39 JP |
31 | " [ fastleave {on | off} ]\n" |
32 | " [ root_block {on | off} ]\n" | |
33 | " [ learning {on | off} ]\n" | |
34 | " [ flood {on | off} ]\n" | |
f6e615de | 35 | " [ proxy_arp {on | off} ]\n" |
38b31a78 | 36 | " [ proxy_arp_wifi {on | off} ]\n" |
10759a90 | 37 | " [ mcast_router MULTICAST_ROUTER ]\n" |
478a8e59 | 38 | " [ mcast_fast_leave {on | off} ]\n" |
9208b4e7 | 39 | " [ mcast_flood {on | off} ]\n" |
fdbdd356 | 40 | " [ group_fwd_mask MASK ]\n" |
a5e3f41b | 41 | " [ neigh_suppress {on | off} ]\n" |
8cfde5c9 | 42 | " [ vlan_tunnel {on | off} ]\n" |
05001bcf | 43 | " [ isolated {on | off} ]\n" |
d13d52d0 | 44 | " [ backup_port DEVICE ] [ nobackup_port ]\n" |
8c39db39 JP |
45 | ); |
46 | } | |
47 | ||
a560d850 ZS |
48 | static void explain(void) |
49 | { | |
50 | print_explain(stderr); | |
51 | } | |
52 | ||
8c39db39 JP |
53 | static const char *port_states[] = { |
54 | [BR_STATE_DISABLED] = "disabled", | |
55 | [BR_STATE_LISTENING] = "listening", | |
56 | [BR_STATE_LEARNING] = "learning", | |
57 | [BR_STATE_FORWARDING] = "forwarding", | |
58 | [BR_STATE_BLOCKING] = "blocking", | |
59 | }; | |
60 | ||
fdbdd356 NA |
61 | static const char *fwd_mask_tbl[16] = { |
62 | [0] = "stp", | |
63 | [2] = "lacp", | |
64 | [14] = "lldp" | |
65 | }; | |
66 | ||
8c39db39 JP |
67 | static void print_portstate(FILE *f, __u8 state) |
68 | { | |
69 | if (state <= BR_STATE_BLOCKING) | |
165a7039 JF |
70 | print_string(PRINT_ANY, |
71 | "state", | |
72 | "state %s ", | |
73 | port_states[state]); | |
8c39db39 | 74 | else |
165a7039 | 75 | print_int(PRINT_ANY, "state_index", "state (%d) ", state); |
8c39db39 JP |
76 | } |
77 | ||
165a7039 | 78 | static void _print_onoff(FILE *f, char *json_flag, char *flag, __u8 val) |
8c39db39 | 79 | { |
165a7039 JF |
80 | if (is_json_context()) |
81 | print_bool(PRINT_JSON, flag, NULL, val); | |
82 | else | |
83 | fprintf(f, "%s %s ", flag, val ? "on" : "off"); | |
84 | } | |
85 | ||
165a7039 JF |
86 | static void _print_timer(FILE *f, const char *attr, struct rtattr *timer) |
87 | { | |
88 | struct timeval tv; | |
89 | ||
90 | __jiffies_to_tv(&tv, rta_getattr_u64(timer)); | |
91 | if (is_json_context()) { | |
92 | json_writer_t *jw = get_json_writer(); | |
93 | ||
94 | jsonw_name(jw, attr); | |
95 | jsonw_printf(jw, "%i.%.2i", | |
96 | (int)tv.tv_sec, (int)tv.tv_usec / 10000); | |
97 | } else { | |
98 | fprintf(f, "%s %4i.%.2i ", attr, (int)tv.tv_sec, | |
99 | (int)tv.tv_usec / 10000); | |
100 | } | |
8c39db39 JP |
101 | } |
102 | ||
fdbdd356 NA |
103 | static void _bitmask2str(__u16 bitmask, char *dst, size_t dst_size, |
104 | const char **tbl) | |
105 | { | |
106 | int len, i; | |
107 | ||
108 | for (i = 0, len = 0; bitmask; i++, bitmask >>= 1) { | |
109 | if (bitmask & 0x1) { | |
110 | if (tbl[i]) | |
111 | len += snprintf(dst + len, dst_size - len, "%s,", | |
112 | tbl[i]); | |
113 | else | |
114 | len += snprintf(dst + len, dst_size - len, "0x%x,", | |
115 | (1 << i)); | |
116 | } | |
117 | } | |
118 | ||
119 | if (!len) | |
120 | snprintf(dst, dst_size, "0x0"); | |
121 | else | |
122 | dst[len - 1] = 0; | |
123 | } | |
124 | ||
8c39db39 JP |
125 | static void bridge_slave_print_opt(struct link_util *lu, FILE *f, |
126 | struct rtattr *tb[]) | |
127 | { | |
128 | if (!tb) | |
129 | return; | |
130 | ||
131 | if (tb[IFLA_BRPORT_STATE]) | |
132 | print_portstate(f, rta_getattr_u8(tb[IFLA_BRPORT_STATE])); | |
133 | ||
134 | if (tb[IFLA_BRPORT_PRIORITY]) | |
165a7039 JF |
135 | print_int(PRINT_ANY, |
136 | "priority", | |
137 | "priority %d ", | |
138 | rta_getattr_u16(tb[IFLA_BRPORT_PRIORITY])); | |
8c39db39 JP |
139 | |
140 | if (tb[IFLA_BRPORT_COST]) | |
165a7039 JF |
141 | print_int(PRINT_ANY, |
142 | "cost", | |
143 | "cost %d ", | |
144 | rta_getattr_u32(tb[IFLA_BRPORT_COST])); | |
8c39db39 JP |
145 | |
146 | if (tb[IFLA_BRPORT_MODE]) | |
165a7039 JF |
147 | _print_onoff(f, "mode", "hairpin", |
148 | rta_getattr_u8(tb[IFLA_BRPORT_MODE])); | |
8c39db39 JP |
149 | |
150 | if (tb[IFLA_BRPORT_GUARD]) | |
165a7039 JF |
151 | _print_onoff(f, "guard", "guard", |
152 | rta_getattr_u8(tb[IFLA_BRPORT_GUARD])); | |
8c39db39 JP |
153 | |
154 | if (tb[IFLA_BRPORT_PROTECT]) | |
165a7039 JF |
155 | _print_onoff(f, "protect", "root_block", |
156 | rta_getattr_u8(tb[IFLA_BRPORT_PROTECT])); | |
8c39db39 JP |
157 | |
158 | if (tb[IFLA_BRPORT_FAST_LEAVE]) | |
165a7039 JF |
159 | _print_onoff(f, "fast_leave", "fastleave", |
160 | rta_getattr_u8(tb[IFLA_BRPORT_FAST_LEAVE])); | |
8c39db39 JP |
161 | |
162 | if (tb[IFLA_BRPORT_LEARNING]) | |
165a7039 JF |
163 | _print_onoff(f, "learning", "learning", |
164 | rta_getattr_u8(tb[IFLA_BRPORT_LEARNING])); | |
8c39db39 JP |
165 | |
166 | if (tb[IFLA_BRPORT_UNICAST_FLOOD]) | |
165a7039 JF |
167 | _print_onoff(f, "unicast_flood", "flood", |
168 | rta_getattr_u8(tb[IFLA_BRPORT_UNICAST_FLOOD])); | |
3069539f NA |
169 | |
170 | if (tb[IFLA_BRPORT_ID]) | |
db2b8b6e SP |
171 | print_0xhex(PRINT_ANY, "id", "port_id 0x%x ", |
172 | rta_getattr_u16(tb[IFLA_BRPORT_ID])); | |
3069539f NA |
173 | |
174 | if (tb[IFLA_BRPORT_NO]) | |
db2b8b6e | 175 | print_0xhex(PRINT_ANY, "no", "port_no 0x%x ", |
165a7039 | 176 | rta_getattr_u16(tb[IFLA_BRPORT_NO])); |
3069539f NA |
177 | |
178 | if (tb[IFLA_BRPORT_DESIGNATED_PORT]) | |
165a7039 JF |
179 | print_uint(PRINT_ANY, |
180 | "designated_port", | |
181 | "designated_port %u ", | |
182 | rta_getattr_u16(tb[IFLA_BRPORT_DESIGNATED_PORT])); | |
3069539f NA |
183 | |
184 | if (tb[IFLA_BRPORT_DESIGNATED_COST]) | |
165a7039 JF |
185 | print_uint(PRINT_ANY, |
186 | "designated_cost", | |
187 | "designated_cost %u ", | |
188 | rta_getattr_u16(tb[IFLA_BRPORT_DESIGNATED_COST])); | |
3069539f NA |
189 | |
190 | if (tb[IFLA_BRPORT_BRIDGE_ID]) { | |
191 | char bridge_id[32]; | |
192 | ||
193 | br_dump_bridge_id(RTA_DATA(tb[IFLA_BRPORT_BRIDGE_ID]), | |
194 | bridge_id, sizeof(bridge_id)); | |
165a7039 JF |
195 | print_string(PRINT_ANY, |
196 | "bridge_id", | |
197 | "designated_bridge %s ", | |
198 | bridge_id); | |
3069539f NA |
199 | } |
200 | ||
201 | if (tb[IFLA_BRPORT_ROOT_ID]) { | |
202 | char root_id[32]; | |
203 | ||
204 | br_dump_bridge_id(RTA_DATA(tb[IFLA_BRPORT_ROOT_ID]), | |
205 | root_id, sizeof(root_id)); | |
165a7039 JF |
206 | print_string(PRINT_ANY, |
207 | "root_id", | |
208 | "designated_root %s ", root_id); | |
3069539f NA |
209 | } |
210 | ||
165a7039 JF |
211 | if (tb[IFLA_BRPORT_HOLD_TIMER]) |
212 | _print_timer(f, "hold_timer", tb[IFLA_BRPORT_HOLD_TIMER]); | |
3069539f | 213 | |
165a7039 JF |
214 | if (tb[IFLA_BRPORT_MESSAGE_AGE_TIMER]) |
215 | _print_timer(f, "message_age_timer", | |
216 | tb[IFLA_BRPORT_MESSAGE_AGE_TIMER]); | |
3069539f | 217 | |
165a7039 JF |
218 | if (tb[IFLA_BRPORT_FORWARD_DELAY_TIMER]) |
219 | _print_timer(f, "forward_delay_timer", | |
220 | tb[IFLA_BRPORT_FORWARD_DELAY_TIMER]); | |
3069539f NA |
221 | |
222 | if (tb[IFLA_BRPORT_TOPOLOGY_CHANGE_ACK]) | |
165a7039 JF |
223 | print_uint(PRINT_ANY, |
224 | "topology_change_ack", | |
225 | "topology_change_ack %u ", | |
226 | rta_getattr_u8(tb[IFLA_BRPORT_TOPOLOGY_CHANGE_ACK])); | |
3069539f NA |
227 | |
228 | if (tb[IFLA_BRPORT_CONFIG_PENDING]) | |
165a7039 JF |
229 | print_uint(PRINT_ANY, |
230 | "config_pending", | |
231 | "config_pending %u ", | |
232 | rta_getattr_u8(tb[IFLA_BRPORT_CONFIG_PENDING])); | |
233 | ||
f6e615de | 234 | if (tb[IFLA_BRPORT_PROXYARP]) |
165a7039 JF |
235 | _print_onoff(f, "proxyarp", "proxy_arp", |
236 | rta_getattr_u8(tb[IFLA_BRPORT_PROXYARP])); | |
38b31a78 NA |
237 | |
238 | if (tb[IFLA_BRPORT_PROXYARP_WIFI]) | |
165a7039 JF |
239 | _print_onoff(f, "proxyarp_wifi", "proxy_arp_wifi", |
240 | rta_getattr_u8(tb[IFLA_BRPORT_PROXYARP_WIFI])); | |
10759a90 NA |
241 | |
242 | if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) | |
165a7039 JF |
243 | print_uint(PRINT_ANY, |
244 | "multicast_router", | |
245 | "mcast_router %u ", | |
246 | rta_getattr_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER])); | |
478a8e59 NA |
247 | |
248 | if (tb[IFLA_BRPORT_FAST_LEAVE]) | |
165a7039 JF |
249 | // not printing any json here because |
250 | // we already printed fast_leave before | |
251 | print_string(PRINT_FP, | |
252 | NULL, | |
253 | "mcast_fast_leave %s ", | |
254 | rta_getattr_u8(tb[IFLA_BRPORT_FAST_LEAVE]) ? "on" : "off"); | |
9208b4e7 NA |
255 | |
256 | if (tb[IFLA_BRPORT_MCAST_FLOOD]) | |
165a7039 JF |
257 | _print_onoff(f, "mcast_flood", "mcast_flood", |
258 | rta_getattr_u8(tb[IFLA_BRPORT_MCAST_FLOOD])); | |
41973a47 RP |
259 | |
260 | if (tb[IFLA_BRPORT_NEIGH_SUPPRESS]) | |
261 | _print_onoff(f, "neigh_suppress", "neigh_suppress", | |
262 | rta_getattr_u8(tb[IFLA_BRPORT_NEIGH_SUPPRESS])); | |
fdbdd356 NA |
263 | |
264 | if (tb[IFLA_BRPORT_GROUP_FWD_MASK]) { | |
265 | char convbuf[256]; | |
266 | __u16 fwd_mask; | |
267 | ||
268 | fwd_mask = rta_getattr_u16(tb[IFLA_BRPORT_GROUP_FWD_MASK]); | |
db2b8b6e SP |
269 | print_0xhex(PRINT_ANY, "group_fwd_mask", |
270 | "group_fwd_mask 0x%x ", fwd_mask); | |
fdbdd356 NA |
271 | _bitmask2str(fwd_mask, convbuf, sizeof(convbuf), fwd_mask_tbl); |
272 | print_string(PRINT_ANY, "group_fwd_mask_str", | |
273 | "group_fwd_mask_str %s ", convbuf); | |
274 | } | |
8cfde5c9 RP |
275 | |
276 | if (tb[IFLA_BRPORT_VLAN_TUNNEL]) | |
277 | _print_onoff(f, "vlan_tunnel", "vlan_tunnel", | |
278 | rta_getattr_u8(tb[IFLA_BRPORT_VLAN_TUNNEL])); | |
05001bcf NA |
279 | |
280 | if (tb[IFLA_BRPORT_ISOLATED]) | |
281 | _print_onoff(f, "isolated", "isolated", | |
282 | rta_getattr_u8(tb[IFLA_BRPORT_ISOLATED])); | |
d13d52d0 NA |
283 | |
284 | if (tb[IFLA_BRPORT_BACKUP_PORT]) { | |
285 | int backup_p = rta_getattr_u32(tb[IFLA_BRPORT_BACKUP_PORT]); | |
286 | ||
287 | print_string(PRINT_ANY, "backup_port", "backup_port %s ", | |
288 | ll_index_to_name(backup_p)); | |
289 | } | |
8c39db39 JP |
290 | } |
291 | ||
292 | static void bridge_slave_parse_on_off(char *arg_name, char *arg_val, | |
293 | struct nlmsghdr *n, int type) | |
294 | { | |
295 | __u8 val; | |
296 | ||
297 | if (strcmp(arg_val, "on") == 0) | |
298 | val = 1; | |
299 | else if (strcmp(arg_val, "off") == 0) | |
300 | val = 0; | |
301 | else | |
302 | invarg("should be \"on\" or \"off\"", arg_name); | |
303 | ||
304 | addattr8(n, 1024, type, val); | |
305 | } | |
306 | ||
307 | static int bridge_slave_parse_opt(struct link_util *lu, int argc, char **argv, | |
308 | struct nlmsghdr *n) | |
309 | { | |
310 | __u8 state; | |
311 | __u16 priority; | |
312 | __u32 cost; | |
313 | ||
314 | while (argc > 0) { | |
d1b41236 HL |
315 | if (matches(*argv, "fdb_flush") == 0) { |
316 | addattr(n, 1024, IFLA_BRPORT_FLUSH); | |
317 | } else if (matches(*argv, "state") == 0) { | |
8c39db39 JP |
318 | NEXT_ARG(); |
319 | if (get_u8(&state, *argv, 0)) | |
320 | invarg("state is invalid", *argv); | |
321 | addattr8(n, 1024, IFLA_BRPORT_STATE, state); | |
322 | } else if (matches(*argv, "priority") == 0) { | |
323 | NEXT_ARG(); | |
324 | if (get_u16(&priority, *argv, 0)) | |
325 | invarg("priority is invalid", *argv); | |
326 | addattr16(n, 1024, IFLA_BRPORT_PRIORITY, priority); | |
327 | } else if (matches(*argv, "cost") == 0) { | |
328 | NEXT_ARG(); | |
329 | if (get_u32(&cost, *argv, 0)) | |
330 | invarg("cost is invalid", *argv); | |
331 | addattr32(n, 1024, IFLA_BRPORT_COST, cost); | |
332 | } else if (matches(*argv, "hairpin") == 0) { | |
333 | NEXT_ARG(); | |
334 | bridge_slave_parse_on_off("hairpin", *argv, n, | |
335 | IFLA_BRPORT_MODE); | |
336 | } else if (matches(*argv, "guard") == 0) { | |
337 | NEXT_ARG(); | |
338 | bridge_slave_parse_on_off("guard", *argv, n, | |
339 | IFLA_BRPORT_GUARD); | |
340 | } else if (matches(*argv, "root_block") == 0) { | |
341 | NEXT_ARG(); | |
342 | bridge_slave_parse_on_off("root_block", *argv, n, | |
343 | IFLA_BRPORT_PROTECT); | |
344 | } else if (matches(*argv, "fastleave") == 0) { | |
345 | NEXT_ARG(); | |
346 | bridge_slave_parse_on_off("fastleave", *argv, n, | |
347 | IFLA_BRPORT_FAST_LEAVE); | |
348 | } else if (matches(*argv, "learning") == 0) { | |
349 | NEXT_ARG(); | |
350 | bridge_slave_parse_on_off("learning", *argv, n, | |
351 | IFLA_BRPORT_LEARNING); | |
352 | } else if (matches(*argv, "flood") == 0) { | |
353 | NEXT_ARG(); | |
354 | bridge_slave_parse_on_off("flood", *argv, n, | |
355 | IFLA_BRPORT_UNICAST_FLOOD); | |
9208b4e7 NA |
356 | } else if (matches(*argv, "mcast_flood") == 0) { |
357 | NEXT_ARG(); | |
358 | bridge_slave_parse_on_off("mcast_flood", *argv, n, | |
359 | IFLA_BRPORT_MCAST_FLOOD); | |
f6e615de NA |
360 | } else if (matches(*argv, "proxy_arp") == 0) { |
361 | NEXT_ARG(); | |
362 | bridge_slave_parse_on_off("proxy_arp", *argv, n, | |
363 | IFLA_BRPORT_PROXYARP); | |
38b31a78 NA |
364 | } else if (matches(*argv, "proxy_arp_wifi") == 0) { |
365 | NEXT_ARG(); | |
366 | bridge_slave_parse_on_off("proxy_arp_wifi", *argv, n, | |
367 | IFLA_BRPORT_PROXYARP_WIFI); | |
10759a90 NA |
368 | } else if (matches(*argv, "mcast_router") == 0) { |
369 | __u8 mcast_router; | |
370 | ||
371 | NEXT_ARG(); | |
372 | if (get_u8(&mcast_router, *argv, 0)) | |
373 | invarg("invalid mcast_router", *argv); | |
374 | addattr8(n, 1024, IFLA_BRPORT_MULTICAST_ROUTER, | |
375 | mcast_router); | |
478a8e59 NA |
376 | } else if (matches(*argv, "mcast_fast_leave") == 0) { |
377 | NEXT_ARG(); | |
378 | bridge_slave_parse_on_off("mcast_fast_leave", *argv, n, | |
379 | IFLA_BRPORT_FAST_LEAVE); | |
41973a47 RP |
380 | } else if (matches(*argv, "neigh_suppress") == 0) { |
381 | NEXT_ARG(); | |
382 | bridge_slave_parse_on_off("neigh_suppress", *argv, n, | |
383 | IFLA_BRPORT_NEIGH_SUPPRESS); | |
fdbdd356 NA |
384 | } else if (matches(*argv, "group_fwd_mask") == 0) { |
385 | __u16 mask; | |
386 | ||
387 | NEXT_ARG(); | |
388 | if (get_u16(&mask, *argv, 0)) | |
389 | invarg("invalid group_fwd_mask", *argv); | |
390 | addattr16(n, 1024, IFLA_BRPORT_GROUP_FWD_MASK, mask); | |
8cfde5c9 RP |
391 | } else if (matches(*argv, "vlan_tunnel") == 0) { |
392 | NEXT_ARG(); | |
393 | bridge_slave_parse_on_off("vlan_tunnel", *argv, n, | |
394 | IFLA_BRPORT_VLAN_TUNNEL); | |
05001bcf NA |
395 | } else if (matches(*argv, "isolated") == 0) { |
396 | NEXT_ARG(); | |
397 | bridge_slave_parse_on_off("isolated", *argv, n, | |
398 | IFLA_BRPORT_ISOLATED); | |
d13d52d0 NA |
399 | } else if (matches(*argv, "backup_port") == 0) { |
400 | int ifindex; | |
401 | ||
402 | NEXT_ARG(); | |
403 | ifindex = ll_name_to_index(*argv); | |
404 | if (!ifindex) | |
405 | invarg("Device does not exist\n", *argv); | |
406 | addattr32(n, 1024, IFLA_BRPORT_BACKUP_PORT, ifindex); | |
407 | } else if (matches(*argv, "nobackup_port") == 0) { | |
408 | addattr32(n, 1024, IFLA_BRPORT_BACKUP_PORT, 0); | |
8c39db39 JP |
409 | } else if (matches(*argv, "help") == 0) { |
410 | explain(); | |
411 | return -1; | |
412 | } else { | |
413 | fprintf(stderr, "bridge_slave: unknown option \"%s\"?\n", | |
414 | *argv); | |
415 | explain(); | |
416 | return -1; | |
417 | } | |
418 | argc--, argv++; | |
419 | } | |
420 | ||
421 | return 0; | |
422 | } | |
423 | ||
a560d850 ZS |
424 | static void bridge_slave_print_help(struct link_util *lu, int argc, char **argv, |
425 | FILE *f) | |
426 | { | |
427 | print_explain(f); | |
428 | } | |
429 | ||
8c39db39 | 430 | struct link_util bridge_slave_link_util = { |
22a84711 | 431 | .id = "bridge_slave", |
8c39db39 JP |
432 | .maxattr = IFLA_BRPORT_MAX, |
433 | .print_opt = bridge_slave_print_opt, | |
434 | .parse_opt = bridge_slave_parse_opt, | |
a560d850 | 435 | .print_help = bridge_slave_print_help, |
217264a0 NA |
436 | .parse_ifla_xstats = bridge_parse_xstats, |
437 | .print_ifla_xstats = bridge_print_xstats, | |
8c39db39 | 438 | }; |