Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
15401946 | 2 | * Sysfs attributes of bridge |
1da177e4 LT |
3 | * Linux ethernet bridge |
4 | * | |
5 | * Authors: | |
6 | * Stephen Hemminger <shemminger@osdl.org> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License | |
10 | * as published by the Free Software Foundation; either version | |
11 | * 2 of the License, or (at your option) any later version. | |
12 | */ | |
13 | ||
4fc268d2 | 14 | #include <linux/capability.h> |
1da177e4 LT |
15 | #include <linux/kernel.h> |
16 | #include <linux/netdevice.h> | |
b3343a2a | 17 | #include <linux/etherdevice.h> |
1da177e4 LT |
18 | #include <linux/if_bridge.h> |
19 | #include <linux/rtnetlink.h> | |
20 | #include <linux/spinlock.h> | |
21 | #include <linux/times.h> | |
22 | ||
23 | #include "br_private.h" | |
24 | ||
43cb76d9 | 25 | #define to_dev(obj) container_of(obj, struct device, kobj) |
524ad0a7 | 26 | #define to_bridge(cd) ((struct net_bridge *)netdev_priv(to_net_dev(cd))) |
1da177e4 LT |
27 | |
28 | /* | |
29 | * Common code for storing bridge parameters. | |
30 | */ | |
43cb76d9 | 31 | static ssize_t store_bridge_parm(struct device *d, |
1da177e4 | 32 | const char *buf, size_t len, |
8d4698f7 | 33 | int (*set)(struct net_bridge *, unsigned long)) |
1da177e4 | 34 | { |
43cb76d9 | 35 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
36 | char *endp; |
37 | unsigned long val; | |
8d4698f7 | 38 | int err; |
1da177e4 | 39 | |
cb990503 | 40 | if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN)) |
1da177e4 LT |
41 | return -EPERM; |
42 | ||
43 | val = simple_strtoul(buf, &endp, 0); | |
44 | if (endp == buf) | |
45 | return -EINVAL; | |
46 | ||
8d4698f7 | 47 | err = (*set)(br, val); |
8d4698f7 | 48 | return err ? err : len; |
1da177e4 LT |
49 | } |
50 | ||
51 | ||
fbf2671b | 52 | static ssize_t forward_delay_show(struct device *d, |
43cb76d9 | 53 | struct device_attribute *attr, char *buf) |
1da177e4 | 54 | { |
43cb76d9 | 55 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
56 | return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->forward_delay)); |
57 | } | |
58 | ||
fbf2671b | 59 | static ssize_t forward_delay_store(struct device *d, |
43cb76d9 GKH |
60 | struct device_attribute *attr, |
61 | const char *buf, size_t len) | |
1da177e4 | 62 | { |
14f98f25 | 63 | return store_bridge_parm(d, buf, len, br_set_forward_delay); |
1da177e4 | 64 | } |
fbf2671b | 65 | static DEVICE_ATTR_RW(forward_delay); |
1da177e4 | 66 | |
fbf2671b | 67 | static ssize_t hello_time_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 68 | char *buf) |
1da177e4 LT |
69 | { |
70 | return sprintf(buf, "%lu\n", | |
43cb76d9 | 71 | jiffies_to_clock_t(to_bridge(d)->hello_time)); |
1da177e4 LT |
72 | } |
73 | ||
fbf2671b | 74 | static ssize_t hello_time_store(struct device *d, |
43cb76d9 | 75 | struct device_attribute *attr, const char *buf, |
1da177e4 LT |
76 | size_t len) |
77 | { | |
14f98f25 | 78 | return store_bridge_parm(d, buf, len, br_set_hello_time); |
1da177e4 | 79 | } |
fbf2671b | 80 | static DEVICE_ATTR_RW(hello_time); |
1da177e4 | 81 | |
fbf2671b | 82 | static ssize_t max_age_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 83 | char *buf) |
1da177e4 LT |
84 | { |
85 | return sprintf(buf, "%lu\n", | |
43cb76d9 | 86 | jiffies_to_clock_t(to_bridge(d)->max_age)); |
1da177e4 LT |
87 | } |
88 | ||
fbf2671b | 89 | static ssize_t max_age_store(struct device *d, struct device_attribute *attr, |
43cb76d9 | 90 | const char *buf, size_t len) |
1da177e4 | 91 | { |
14f98f25 | 92 | return store_bridge_parm(d, buf, len, br_set_max_age); |
1da177e4 | 93 | } |
fbf2671b | 94 | static DEVICE_ATTR_RW(max_age); |
1da177e4 | 95 | |
fbf2671b | 96 | static ssize_t ageing_time_show(struct device *d, |
43cb76d9 | 97 | struct device_attribute *attr, char *buf) |
1da177e4 | 98 | { |
43cb76d9 | 99 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
100 | return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->ageing_time)); |
101 | } | |
102 | ||
8d4698f7 | 103 | static int set_ageing_time(struct net_bridge *br, unsigned long val) |
1da177e4 LT |
104 | { |
105 | br->ageing_time = clock_t_to_jiffies(val); | |
8d4698f7 | 106 | return 0; |
1da177e4 LT |
107 | } |
108 | ||
fbf2671b | 109 | static ssize_t ageing_time_store(struct device *d, |
43cb76d9 GKH |
110 | struct device_attribute *attr, |
111 | const char *buf, size_t len) | |
1da177e4 | 112 | { |
43cb76d9 | 113 | return store_bridge_parm(d, buf, len, set_ageing_time); |
1da177e4 | 114 | } |
fbf2671b | 115 | static DEVICE_ATTR_RW(ageing_time); |
1da177e4 | 116 | |
fbf2671b | 117 | static ssize_t stp_state_show(struct device *d, |
43cb76d9 | 118 | struct device_attribute *attr, char *buf) |
1da177e4 | 119 | { |
43cb76d9 | 120 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
121 | return sprintf(buf, "%d\n", br->stp_enabled); |
122 | } | |
123 | ||
1da177e4 | 124 | |
fbf2671b | 125 | static ssize_t stp_state_store(struct device *d, |
43cb76d9 GKH |
126 | struct device_attribute *attr, const char *buf, |
127 | size_t len) | |
1da177e4 | 128 | { |
17120889 SH |
129 | struct net_bridge *br = to_bridge(d); |
130 | char *endp; | |
131 | unsigned long val; | |
132 | ||
cb990503 | 133 | if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN)) |
17120889 SH |
134 | return -EPERM; |
135 | ||
136 | val = simple_strtoul(buf, &endp, 0); | |
137 | if (endp == buf) | |
138 | return -EINVAL; | |
139 | ||
af38f298 EB |
140 | if (!rtnl_trylock()) |
141 | return restart_syscall(); | |
17120889 SH |
142 | br_stp_set_enabled(br, val); |
143 | rtnl_unlock(); | |
144 | ||
35b426c3 | 145 | return len; |
1da177e4 | 146 | } |
fbf2671b | 147 | static DEVICE_ATTR_RW(stp_state); |
1da177e4 | 148 | |
fbf2671b | 149 | static ssize_t group_fwd_mask_show(struct device *d, |
150 | struct device_attribute *attr, | |
151 | char *buf) | |
515853cc | 152 | { |
153 | struct net_bridge *br = to_bridge(d); | |
154 | return sprintf(buf, "%#x\n", br->group_fwd_mask); | |
155 | } | |
156 | ||
157 | ||
fbf2671b | 158 | static ssize_t group_fwd_mask_store(struct device *d, |
159 | struct device_attribute *attr, | |
160 | const char *buf, | |
161 | size_t len) | |
515853cc | 162 | { |
163 | struct net_bridge *br = to_bridge(d); | |
164 | char *endp; | |
165 | unsigned long val; | |
166 | ||
cb990503 | 167 | if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN)) |
515853cc | 168 | return -EPERM; |
169 | ||
170 | val = simple_strtoul(buf, &endp, 0); | |
171 | if (endp == buf) | |
172 | return -EINVAL; | |
173 | ||
174 | if (val & BR_GROUPFWD_RESTRICTED) | |
175 | return -EINVAL; | |
176 | ||
177 | br->group_fwd_mask = val; | |
178 | ||
179 | return len; | |
180 | } | |
fbf2671b | 181 | static DEVICE_ATTR_RW(group_fwd_mask); |
515853cc | 182 | |
fbf2671b | 183 | static ssize_t priority_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 184 | char *buf) |
1da177e4 | 185 | { |
43cb76d9 | 186 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
187 | return sprintf(buf, "%d\n", |
188 | (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1]); | |
189 | } | |
190 | ||
8d4698f7 | 191 | static int set_priority(struct net_bridge *br, unsigned long val) |
1da177e4 LT |
192 | { |
193 | br_stp_set_bridge_priority(br, (u16) val); | |
8d4698f7 | 194 | return 0; |
1da177e4 LT |
195 | } |
196 | ||
fbf2671b | 197 | static ssize_t priority_store(struct device *d, struct device_attribute *attr, |
198 | const char *buf, size_t len) | |
1da177e4 | 199 | { |
43cb76d9 | 200 | return store_bridge_parm(d, buf, len, set_priority); |
1da177e4 | 201 | } |
fbf2671b | 202 | static DEVICE_ATTR_RW(priority); |
1da177e4 | 203 | |
fbf2671b | 204 | static ssize_t root_id_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 205 | char *buf) |
1da177e4 | 206 | { |
43cb76d9 | 207 | return br_show_bridge_id(buf, &to_bridge(d)->designated_root); |
1da177e4 | 208 | } |
fbf2671b | 209 | static DEVICE_ATTR_RO(root_id); |
1da177e4 | 210 | |
fbf2671b | 211 | static ssize_t bridge_id_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 212 | char *buf) |
1da177e4 | 213 | { |
43cb76d9 | 214 | return br_show_bridge_id(buf, &to_bridge(d)->bridge_id); |
1da177e4 | 215 | } |
fbf2671b | 216 | static DEVICE_ATTR_RO(bridge_id); |
1da177e4 | 217 | |
fbf2671b | 218 | static ssize_t root_port_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 219 | char *buf) |
1da177e4 | 220 | { |
43cb76d9 | 221 | return sprintf(buf, "%d\n", to_bridge(d)->root_port); |
1da177e4 | 222 | } |
fbf2671b | 223 | static DEVICE_ATTR_RO(root_port); |
1da177e4 | 224 | |
fbf2671b | 225 | static ssize_t root_path_cost_show(struct device *d, |
43cb76d9 | 226 | struct device_attribute *attr, char *buf) |
1da177e4 | 227 | { |
43cb76d9 | 228 | return sprintf(buf, "%d\n", to_bridge(d)->root_path_cost); |
1da177e4 | 229 | } |
fbf2671b | 230 | static DEVICE_ATTR_RO(root_path_cost); |
1da177e4 | 231 | |
fbf2671b | 232 | static ssize_t topology_change_show(struct device *d, |
43cb76d9 | 233 | struct device_attribute *attr, char *buf) |
1da177e4 | 234 | { |
43cb76d9 | 235 | return sprintf(buf, "%d\n", to_bridge(d)->topology_change); |
1da177e4 | 236 | } |
fbf2671b | 237 | static DEVICE_ATTR_RO(topology_change); |
1da177e4 | 238 | |
fbf2671b | 239 | static ssize_t topology_change_detected_show(struct device *d, |
43cb76d9 GKH |
240 | struct device_attribute *attr, |
241 | char *buf) | |
1da177e4 | 242 | { |
43cb76d9 | 243 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
244 | return sprintf(buf, "%d\n", br->topology_change_detected); |
245 | } | |
fbf2671b | 246 | static DEVICE_ATTR_RO(topology_change_detected); |
1da177e4 | 247 | |
fbf2671b | 248 | static ssize_t hello_timer_show(struct device *d, |
43cb76d9 | 249 | struct device_attribute *attr, char *buf) |
1da177e4 | 250 | { |
43cb76d9 | 251 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
252 | return sprintf(buf, "%ld\n", br_timer_value(&br->hello_timer)); |
253 | } | |
fbf2671b | 254 | static DEVICE_ATTR_RO(hello_timer); |
1da177e4 | 255 | |
fbf2671b | 256 | static ssize_t tcn_timer_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 257 | char *buf) |
1da177e4 | 258 | { |
43cb76d9 | 259 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
260 | return sprintf(buf, "%ld\n", br_timer_value(&br->tcn_timer)); |
261 | } | |
fbf2671b | 262 | static DEVICE_ATTR_RO(tcn_timer); |
1da177e4 | 263 | |
fbf2671b | 264 | static ssize_t topology_change_timer_show(struct device *d, |
43cb76d9 GKH |
265 | struct device_attribute *attr, |
266 | char *buf) | |
1da177e4 | 267 | { |
43cb76d9 | 268 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
269 | return sprintf(buf, "%ld\n", br_timer_value(&br->topology_change_timer)); |
270 | } | |
fbf2671b | 271 | static DEVICE_ATTR_RO(topology_change_timer); |
1da177e4 | 272 | |
fbf2671b | 273 | static ssize_t gc_timer_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 274 | char *buf) |
1da177e4 | 275 | { |
43cb76d9 | 276 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
277 | return sprintf(buf, "%ld\n", br_timer_value(&br->gc_timer)); |
278 | } | |
fbf2671b | 279 | static DEVICE_ATTR_RO(gc_timer); |
1da177e4 | 280 | |
fbf2671b | 281 | static ssize_t group_addr_show(struct device *d, |
43cb76d9 | 282 | struct device_attribute *attr, char *buf) |
fda93d92 | 283 | { |
43cb76d9 | 284 | struct net_bridge *br = to_bridge(d); |
fda93d92 SH |
285 | return sprintf(buf, "%x:%x:%x:%x:%x:%x\n", |
286 | br->group_addr[0], br->group_addr[1], | |
287 | br->group_addr[2], br->group_addr[3], | |
288 | br->group_addr[4], br->group_addr[5]); | |
289 | } | |
290 | ||
fbf2671b | 291 | static ssize_t group_addr_store(struct device *d, |
43cb76d9 GKH |
292 | struct device_attribute *attr, |
293 | const char *buf, size_t len) | |
fda93d92 | 294 | { |
43cb76d9 | 295 | struct net_bridge *br = to_bridge(d); |
4197f24b | 296 | u8 new_addr[6]; |
fda93d92 SH |
297 | int i; |
298 | ||
cb990503 | 299 | if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN)) |
fda93d92 SH |
300 | return -EPERM; |
301 | ||
4197f24b | 302 | if (sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", |
fda93d92 SH |
303 | &new_addr[0], &new_addr[1], &new_addr[2], |
304 | &new_addr[3], &new_addr[4], &new_addr[5]) != 6) | |
305 | return -EINVAL; | |
306 | ||
46acc460 | 307 | if (!is_link_local_ether_addr(new_addr)) |
fda93d92 SH |
308 | return -EINVAL; |
309 | ||
f64f9e71 JP |
310 | if (new_addr[5] == 1 || /* 802.3x Pause address */ |
311 | new_addr[5] == 2 || /* 802.3ad Slow protocols */ | |
312 | new_addr[5] == 3) /* 802.1X PAE address */ | |
fda93d92 SH |
313 | return -EINVAL; |
314 | ||
204177f3 TM |
315 | if (!rtnl_trylock()) |
316 | return restart_syscall(); | |
317 | ||
fda93d92 SH |
318 | spin_lock_bh(&br->lock); |
319 | for (i = 0; i < 6; i++) | |
320 | br->group_addr[i] = new_addr[i]; | |
321 | spin_unlock_bh(&br->lock); | |
204177f3 TM |
322 | |
323 | br->group_addr_set = true; | |
324 | br_recalculate_fwd_mask(br); | |
325 | ||
326 | rtnl_unlock(); | |
327 | ||
fda93d92 SH |
328 | return len; |
329 | } | |
330 | ||
fbf2671b | 331 | static DEVICE_ATTR_RW(group_addr); |
fda93d92 | 332 | |
fbf2671b | 333 | static ssize_t flush_store(struct device *d, |
9cf63747 SH |
334 | struct device_attribute *attr, |
335 | const char *buf, size_t len) | |
336 | { | |
337 | struct net_bridge *br = to_bridge(d); | |
338 | ||
cb990503 | 339 | if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN)) |
9cf63747 SH |
340 | return -EPERM; |
341 | ||
342 | br_fdb_flush(br); | |
343 | return len; | |
344 | } | |
fbf2671b | 345 | static DEVICE_ATTR_WO(flush); |
fda93d92 | 346 | |
0909e117 | 347 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
fbf2671b | 348 | static ssize_t multicast_router_show(struct device *d, |
0909e117 HX |
349 | struct device_attribute *attr, char *buf) |
350 | { | |
351 | struct net_bridge *br = to_bridge(d); | |
352 | return sprintf(buf, "%d\n", br->multicast_router); | |
353 | } | |
354 | ||
fbf2671b | 355 | static ssize_t multicast_router_store(struct device *d, |
0909e117 HX |
356 | struct device_attribute *attr, |
357 | const char *buf, size_t len) | |
358 | { | |
359 | return store_bridge_parm(d, buf, len, br_multicast_set_router); | |
360 | } | |
fbf2671b | 361 | static DEVICE_ATTR_RW(multicast_router); |
561f1103 | 362 | |
fbf2671b | 363 | static ssize_t multicast_snooping_show(struct device *d, |
561f1103 HX |
364 | struct device_attribute *attr, |
365 | char *buf) | |
366 | { | |
367 | struct net_bridge *br = to_bridge(d); | |
368 | return sprintf(buf, "%d\n", !br->multicast_disabled); | |
369 | } | |
370 | ||
fbf2671b | 371 | static ssize_t multicast_snooping_store(struct device *d, |
561f1103 HX |
372 | struct device_attribute *attr, |
373 | const char *buf, size_t len) | |
374 | { | |
375 | return store_bridge_parm(d, buf, len, br_multicast_toggle); | |
376 | } | |
fbf2671b | 377 | static DEVICE_ATTR_RW(multicast_snooping); |
b195167f | 378 | |
fbf2671b | 379 | static ssize_t multicast_query_use_ifaddr_show(struct device *d, |
380 | struct device_attribute *attr, | |
381 | char *buf) | |
1c8ad5bf CW |
382 | { |
383 | struct net_bridge *br = to_bridge(d); | |
384 | return sprintf(buf, "%d\n", br->multicast_query_use_ifaddr); | |
385 | } | |
386 | ||
387 | static int set_query_use_ifaddr(struct net_bridge *br, unsigned long val) | |
388 | { | |
389 | br->multicast_query_use_ifaddr = !!val; | |
390 | return 0; | |
391 | } | |
392 | ||
393 | static ssize_t | |
fbf2671b | 394 | multicast_query_use_ifaddr_store(struct device *d, |
1c8ad5bf CW |
395 | struct device_attribute *attr, |
396 | const char *buf, size_t len) | |
397 | { | |
398 | return store_bridge_parm(d, buf, len, set_query_use_ifaddr); | |
399 | } | |
fbf2671b | 400 | static DEVICE_ATTR_RW(multicast_query_use_ifaddr); |
1c8ad5bf | 401 | |
fbf2671b | 402 | static ssize_t multicast_querier_show(struct device *d, |
c5c23260 HX |
403 | struct device_attribute *attr, |
404 | char *buf) | |
405 | { | |
406 | struct net_bridge *br = to_bridge(d); | |
407 | return sprintf(buf, "%d\n", br->multicast_querier); | |
408 | } | |
409 | ||
fbf2671b | 410 | static ssize_t multicast_querier_store(struct device *d, |
c5c23260 HX |
411 | struct device_attribute *attr, |
412 | const char *buf, size_t len) | |
413 | { | |
414 | return store_bridge_parm(d, buf, len, br_multicast_set_querier); | |
415 | } | |
fbf2671b | 416 | static DEVICE_ATTR_RW(multicast_querier); |
c5c23260 | 417 | |
fbf2671b | 418 | static ssize_t hash_elasticity_show(struct device *d, |
b195167f HX |
419 | struct device_attribute *attr, char *buf) |
420 | { | |
421 | struct net_bridge *br = to_bridge(d); | |
422 | return sprintf(buf, "%u\n", br->hash_elasticity); | |
423 | } | |
424 | ||
425 | static int set_elasticity(struct net_bridge *br, unsigned long val) | |
426 | { | |
427 | br->hash_elasticity = val; | |
428 | return 0; | |
429 | } | |
430 | ||
fbf2671b | 431 | static ssize_t hash_elasticity_store(struct device *d, |
b195167f HX |
432 | struct device_attribute *attr, |
433 | const char *buf, size_t len) | |
434 | { | |
435 | return store_bridge_parm(d, buf, len, set_elasticity); | |
436 | } | |
fbf2671b | 437 | static DEVICE_ATTR_RW(hash_elasticity); |
b195167f | 438 | |
fbf2671b | 439 | static ssize_t hash_max_show(struct device *d, struct device_attribute *attr, |
b195167f HX |
440 | char *buf) |
441 | { | |
442 | struct net_bridge *br = to_bridge(d); | |
443 | return sprintf(buf, "%u\n", br->hash_max); | |
444 | } | |
445 | ||
fbf2671b | 446 | static ssize_t hash_max_store(struct device *d, struct device_attribute *attr, |
b195167f HX |
447 | const char *buf, size_t len) |
448 | { | |
449 | return store_bridge_parm(d, buf, len, br_multicast_set_hash_max); | |
450 | } | |
fbf2671b | 451 | static DEVICE_ATTR_RW(hash_max); |
d902eee4 | 452 | |
fbf2671b | 453 | static ssize_t multicast_last_member_count_show(struct device *d, |
d902eee4 HX |
454 | struct device_attribute *attr, |
455 | char *buf) | |
456 | { | |
457 | struct net_bridge *br = to_bridge(d); | |
458 | return sprintf(buf, "%u\n", br->multicast_last_member_count); | |
459 | } | |
460 | ||
461 | static int set_last_member_count(struct net_bridge *br, unsigned long val) | |
462 | { | |
463 | br->multicast_last_member_count = val; | |
464 | return 0; | |
465 | } | |
466 | ||
fbf2671b | 467 | static ssize_t multicast_last_member_count_store(struct device *d, |
d902eee4 HX |
468 | struct device_attribute *attr, |
469 | const char *buf, size_t len) | |
470 | { | |
471 | return store_bridge_parm(d, buf, len, set_last_member_count); | |
472 | } | |
fbf2671b | 473 | static DEVICE_ATTR_RW(multicast_last_member_count); |
d902eee4 | 474 | |
fbf2671b | 475 | static ssize_t multicast_startup_query_count_show( |
d902eee4 HX |
476 | struct device *d, struct device_attribute *attr, char *buf) |
477 | { | |
478 | struct net_bridge *br = to_bridge(d); | |
479 | return sprintf(buf, "%u\n", br->multicast_startup_query_count); | |
480 | } | |
481 | ||
482 | static int set_startup_query_count(struct net_bridge *br, unsigned long val) | |
483 | { | |
484 | br->multicast_startup_query_count = val; | |
485 | return 0; | |
486 | } | |
487 | ||
fbf2671b | 488 | static ssize_t multicast_startup_query_count_store( |
d902eee4 HX |
489 | struct device *d, struct device_attribute *attr, const char *buf, |
490 | size_t len) | |
491 | { | |
492 | return store_bridge_parm(d, buf, len, set_startup_query_count); | |
493 | } | |
fbf2671b | 494 | static DEVICE_ATTR_RW(multicast_startup_query_count); |
d902eee4 | 495 | |
fbf2671b | 496 | static ssize_t multicast_last_member_interval_show( |
d902eee4 HX |
497 | struct device *d, struct device_attribute *attr, char *buf) |
498 | { | |
499 | struct net_bridge *br = to_bridge(d); | |
500 | return sprintf(buf, "%lu\n", | |
501 | jiffies_to_clock_t(br->multicast_last_member_interval)); | |
502 | } | |
503 | ||
504 | static int set_last_member_interval(struct net_bridge *br, unsigned long val) | |
505 | { | |
506 | br->multicast_last_member_interval = clock_t_to_jiffies(val); | |
507 | return 0; | |
508 | } | |
509 | ||
fbf2671b | 510 | static ssize_t multicast_last_member_interval_store( |
d902eee4 HX |
511 | struct device *d, struct device_attribute *attr, const char *buf, |
512 | size_t len) | |
513 | { | |
514 | return store_bridge_parm(d, buf, len, set_last_member_interval); | |
515 | } | |
fbf2671b | 516 | static DEVICE_ATTR_RW(multicast_last_member_interval); |
d902eee4 | 517 | |
fbf2671b | 518 | static ssize_t multicast_membership_interval_show( |
d902eee4 HX |
519 | struct device *d, struct device_attribute *attr, char *buf) |
520 | { | |
521 | struct net_bridge *br = to_bridge(d); | |
522 | return sprintf(buf, "%lu\n", | |
523 | jiffies_to_clock_t(br->multicast_membership_interval)); | |
524 | } | |
525 | ||
526 | static int set_membership_interval(struct net_bridge *br, unsigned long val) | |
527 | { | |
528 | br->multicast_membership_interval = clock_t_to_jiffies(val); | |
529 | return 0; | |
530 | } | |
531 | ||
fbf2671b | 532 | static ssize_t multicast_membership_interval_store( |
d902eee4 HX |
533 | struct device *d, struct device_attribute *attr, const char *buf, |
534 | size_t len) | |
535 | { | |
536 | return store_bridge_parm(d, buf, len, set_membership_interval); | |
537 | } | |
fbf2671b | 538 | static DEVICE_ATTR_RW(multicast_membership_interval); |
d902eee4 | 539 | |
fbf2671b | 540 | static ssize_t multicast_querier_interval_show(struct device *d, |
d902eee4 HX |
541 | struct device_attribute *attr, |
542 | char *buf) | |
543 | { | |
544 | struct net_bridge *br = to_bridge(d); | |
545 | return sprintf(buf, "%lu\n", | |
546 | jiffies_to_clock_t(br->multicast_querier_interval)); | |
547 | } | |
548 | ||
549 | static int set_querier_interval(struct net_bridge *br, unsigned long val) | |
550 | { | |
551 | br->multicast_querier_interval = clock_t_to_jiffies(val); | |
552 | return 0; | |
553 | } | |
554 | ||
fbf2671b | 555 | static ssize_t multicast_querier_interval_store(struct device *d, |
d902eee4 HX |
556 | struct device_attribute *attr, |
557 | const char *buf, size_t len) | |
558 | { | |
559 | return store_bridge_parm(d, buf, len, set_querier_interval); | |
560 | } | |
fbf2671b | 561 | static DEVICE_ATTR_RW(multicast_querier_interval); |
d902eee4 | 562 | |
fbf2671b | 563 | static ssize_t multicast_query_interval_show(struct device *d, |
d902eee4 HX |
564 | struct device_attribute *attr, |
565 | char *buf) | |
566 | { | |
567 | struct net_bridge *br = to_bridge(d); | |
568 | return sprintf(buf, "%lu\n", | |
569 | jiffies_to_clock_t(br->multicast_query_interval)); | |
570 | } | |
571 | ||
572 | static int set_query_interval(struct net_bridge *br, unsigned long val) | |
573 | { | |
574 | br->multicast_query_interval = clock_t_to_jiffies(val); | |
575 | return 0; | |
576 | } | |
577 | ||
fbf2671b | 578 | static ssize_t multicast_query_interval_store(struct device *d, |
d902eee4 HX |
579 | struct device_attribute *attr, |
580 | const char *buf, size_t len) | |
581 | { | |
582 | return store_bridge_parm(d, buf, len, set_query_interval); | |
583 | } | |
fbf2671b | 584 | static DEVICE_ATTR_RW(multicast_query_interval); |
d902eee4 | 585 | |
fbf2671b | 586 | static ssize_t multicast_query_response_interval_show( |
d902eee4 HX |
587 | struct device *d, struct device_attribute *attr, char *buf) |
588 | { | |
589 | struct net_bridge *br = to_bridge(d); | |
590 | return sprintf( | |
591 | buf, "%lu\n", | |
592 | jiffies_to_clock_t(br->multicast_query_response_interval)); | |
593 | } | |
594 | ||
595 | static int set_query_response_interval(struct net_bridge *br, unsigned long val) | |
596 | { | |
597 | br->multicast_query_response_interval = clock_t_to_jiffies(val); | |
598 | return 0; | |
599 | } | |
600 | ||
fbf2671b | 601 | static ssize_t multicast_query_response_interval_store( |
d902eee4 HX |
602 | struct device *d, struct device_attribute *attr, const char *buf, |
603 | size_t len) | |
604 | { | |
605 | return store_bridge_parm(d, buf, len, set_query_response_interval); | |
606 | } | |
fbf2671b | 607 | static DEVICE_ATTR_RW(multicast_query_response_interval); |
d902eee4 | 608 | |
fbf2671b | 609 | static ssize_t multicast_startup_query_interval_show( |
d902eee4 HX |
610 | struct device *d, struct device_attribute *attr, char *buf) |
611 | { | |
612 | struct net_bridge *br = to_bridge(d); | |
613 | return sprintf( | |
614 | buf, "%lu\n", | |
615 | jiffies_to_clock_t(br->multicast_startup_query_interval)); | |
616 | } | |
617 | ||
618 | static int set_startup_query_interval(struct net_bridge *br, unsigned long val) | |
619 | { | |
620 | br->multicast_startup_query_interval = clock_t_to_jiffies(val); | |
621 | return 0; | |
622 | } | |
623 | ||
fbf2671b | 624 | static ssize_t multicast_startup_query_interval_store( |
d902eee4 HX |
625 | struct device *d, struct device_attribute *attr, const char *buf, |
626 | size_t len) | |
627 | { | |
628 | return store_bridge_parm(d, buf, len, set_startup_query_interval); | |
629 | } | |
fbf2671b | 630 | static DEVICE_ATTR_RW(multicast_startup_query_interval); |
0909e117 | 631 | #endif |
34666d46 | 632 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
fbf2671b | 633 | static ssize_t nf_call_iptables_show( |
4df53d8b PM |
634 | struct device *d, struct device_attribute *attr, char *buf) |
635 | { | |
636 | struct net_bridge *br = to_bridge(d); | |
637 | return sprintf(buf, "%u\n", br->nf_call_iptables); | |
638 | } | |
639 | ||
640 | static int set_nf_call_iptables(struct net_bridge *br, unsigned long val) | |
641 | { | |
642 | br->nf_call_iptables = val ? true : false; | |
643 | return 0; | |
644 | } | |
645 | ||
fbf2671b | 646 | static ssize_t nf_call_iptables_store( |
4df53d8b PM |
647 | struct device *d, struct device_attribute *attr, const char *buf, |
648 | size_t len) | |
649 | { | |
650 | return store_bridge_parm(d, buf, len, set_nf_call_iptables); | |
651 | } | |
fbf2671b | 652 | static DEVICE_ATTR_RW(nf_call_iptables); |
4df53d8b | 653 | |
fbf2671b | 654 | static ssize_t nf_call_ip6tables_show( |
4df53d8b PM |
655 | struct device *d, struct device_attribute *attr, char *buf) |
656 | { | |
657 | struct net_bridge *br = to_bridge(d); | |
658 | return sprintf(buf, "%u\n", br->nf_call_ip6tables); | |
659 | } | |
660 | ||
661 | static int set_nf_call_ip6tables(struct net_bridge *br, unsigned long val) | |
662 | { | |
663 | br->nf_call_ip6tables = val ? true : false; | |
664 | return 0; | |
665 | } | |
666 | ||
fbf2671b | 667 | static ssize_t nf_call_ip6tables_store( |
4df53d8b PM |
668 | struct device *d, struct device_attribute *attr, const char *buf, |
669 | size_t len) | |
670 | { | |
671 | return store_bridge_parm(d, buf, len, set_nf_call_ip6tables); | |
672 | } | |
fbf2671b | 673 | static DEVICE_ATTR_RW(nf_call_ip6tables); |
4df53d8b | 674 | |
fbf2671b | 675 | static ssize_t nf_call_arptables_show( |
4df53d8b PM |
676 | struct device *d, struct device_attribute *attr, char *buf) |
677 | { | |
678 | struct net_bridge *br = to_bridge(d); | |
679 | return sprintf(buf, "%u\n", br->nf_call_arptables); | |
680 | } | |
681 | ||
682 | static int set_nf_call_arptables(struct net_bridge *br, unsigned long val) | |
683 | { | |
684 | br->nf_call_arptables = val ? true : false; | |
685 | return 0; | |
686 | } | |
687 | ||
fbf2671b | 688 | static ssize_t nf_call_arptables_store( |
4df53d8b PM |
689 | struct device *d, struct device_attribute *attr, const char *buf, |
690 | size_t len) | |
691 | { | |
692 | return store_bridge_parm(d, buf, len, set_nf_call_arptables); | |
693 | } | |
fbf2671b | 694 | static DEVICE_ATTR_RW(nf_call_arptables); |
4df53d8b | 695 | #endif |
243a2e63 | 696 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
fbf2671b | 697 | static ssize_t vlan_filtering_show(struct device *d, |
243a2e63 VY |
698 | struct device_attribute *attr, |
699 | char *buf) | |
700 | { | |
701 | struct net_bridge *br = to_bridge(d); | |
702 | return sprintf(buf, "%d\n", br->vlan_enabled); | |
703 | } | |
704 | ||
fbf2671b | 705 | static ssize_t vlan_filtering_store(struct device *d, |
243a2e63 VY |
706 | struct device_attribute *attr, |
707 | const char *buf, size_t len) | |
708 | { | |
709 | return store_bridge_parm(d, buf, len, br_vlan_filter_toggle); | |
710 | } | |
fbf2671b | 711 | static DEVICE_ATTR_RW(vlan_filtering); |
204177f3 TM |
712 | |
713 | static ssize_t vlan_protocol_show(struct device *d, | |
714 | struct device_attribute *attr, | |
715 | char *buf) | |
716 | { | |
717 | struct net_bridge *br = to_bridge(d); | |
718 | return sprintf(buf, "%#06x\n", ntohs(br->vlan_proto)); | |
719 | } | |
720 | ||
721 | static ssize_t vlan_protocol_store(struct device *d, | |
722 | struct device_attribute *attr, | |
723 | const char *buf, size_t len) | |
724 | { | |
725 | return store_bridge_parm(d, buf, len, br_vlan_set_proto); | |
726 | } | |
727 | static DEVICE_ATTR_RW(vlan_protocol); | |
96a20d9d VY |
728 | |
729 | static ssize_t default_pvid_show(struct device *d, | |
730 | struct device_attribute *attr, | |
731 | char *buf) | |
732 | { | |
733 | struct net_bridge *br = to_bridge(d); | |
734 | return sprintf(buf, "%d\n", br->default_pvid); | |
735 | } | |
736 | ||
737 | static ssize_t default_pvid_store(struct device *d, | |
738 | struct device_attribute *attr, | |
739 | const char *buf, size_t len) | |
740 | { | |
741 | return store_bridge_parm(d, buf, len, br_vlan_set_default_pvid); | |
742 | } | |
743 | static DEVICE_ATTR_RW(default_pvid); | |
243a2e63 | 744 | #endif |
0909e117 | 745 | |
1da177e4 | 746 | static struct attribute *bridge_attrs[] = { |
43cb76d9 GKH |
747 | &dev_attr_forward_delay.attr, |
748 | &dev_attr_hello_time.attr, | |
749 | &dev_attr_max_age.attr, | |
750 | &dev_attr_ageing_time.attr, | |
751 | &dev_attr_stp_state.attr, | |
515853cc | 752 | &dev_attr_group_fwd_mask.attr, |
43cb76d9 GKH |
753 | &dev_attr_priority.attr, |
754 | &dev_attr_bridge_id.attr, | |
755 | &dev_attr_root_id.attr, | |
756 | &dev_attr_root_path_cost.attr, | |
757 | &dev_attr_root_port.attr, | |
758 | &dev_attr_topology_change.attr, | |
759 | &dev_attr_topology_change_detected.attr, | |
760 | &dev_attr_hello_timer.attr, | |
761 | &dev_attr_tcn_timer.attr, | |
762 | &dev_attr_topology_change_timer.attr, | |
763 | &dev_attr_gc_timer.attr, | |
764 | &dev_attr_group_addr.attr, | |
9cf63747 | 765 | &dev_attr_flush.attr, |
0909e117 HX |
766 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
767 | &dev_attr_multicast_router.attr, | |
561f1103 | 768 | &dev_attr_multicast_snooping.attr, |
c5c23260 | 769 | &dev_attr_multicast_querier.attr, |
1c8ad5bf | 770 | &dev_attr_multicast_query_use_ifaddr.attr, |
b195167f HX |
771 | &dev_attr_hash_elasticity.attr, |
772 | &dev_attr_hash_max.attr, | |
d902eee4 HX |
773 | &dev_attr_multicast_last_member_count.attr, |
774 | &dev_attr_multicast_startup_query_count.attr, | |
775 | &dev_attr_multicast_last_member_interval.attr, | |
776 | &dev_attr_multicast_membership_interval.attr, | |
777 | &dev_attr_multicast_querier_interval.attr, | |
778 | &dev_attr_multicast_query_interval.attr, | |
779 | &dev_attr_multicast_query_response_interval.attr, | |
780 | &dev_attr_multicast_startup_query_interval.attr, | |
4df53d8b | 781 | #endif |
34666d46 | 782 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
4df53d8b PM |
783 | &dev_attr_nf_call_iptables.attr, |
784 | &dev_attr_nf_call_ip6tables.attr, | |
785 | &dev_attr_nf_call_arptables.attr, | |
243a2e63 VY |
786 | #endif |
787 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
788 | &dev_attr_vlan_filtering.attr, | |
204177f3 | 789 | &dev_attr_vlan_protocol.attr, |
96a20d9d | 790 | &dev_attr_default_pvid.attr, |
0909e117 | 791 | #endif |
1da177e4 LT |
792 | NULL |
793 | }; | |
794 | ||
795 | static struct attribute_group bridge_group = { | |
796 | .name = SYSFS_BRIDGE_ATTR, | |
797 | .attrs = bridge_attrs, | |
798 | }; | |
799 | ||
800 | /* | |
801 | * Export the forwarding information table as a binary file | |
802 | * The records are struct __fdb_entry. | |
803 | * | |
804 | * Returns the number of bytes read. | |
805 | */ | |
2c3c8bea | 806 | static ssize_t brforward_read(struct file *filp, struct kobject *kobj, |
91a69029 ZR |
807 | struct bin_attribute *bin_attr, |
808 | char *buf, loff_t off, size_t count) | |
1da177e4 | 809 | { |
43cb76d9 GKH |
810 | struct device *dev = to_dev(kobj); |
811 | struct net_bridge *br = to_bridge(dev); | |
1da177e4 LT |
812 | int n; |
813 | ||
814 | /* must read whole records */ | |
815 | if (off % sizeof(struct __fdb_entry) != 0) | |
816 | return -EINVAL; | |
817 | ||
9d6f229f | 818 | n = br_fdb_fillbuf(br, buf, |
1da177e4 LT |
819 | count / sizeof(struct __fdb_entry), |
820 | off / sizeof(struct __fdb_entry)); | |
821 | ||
822 | if (n > 0) | |
823 | n *= sizeof(struct __fdb_entry); | |
9d6f229f | 824 | |
1da177e4 LT |
825 | return n; |
826 | } | |
827 | ||
828 | static struct bin_attribute bridge_forward = { | |
829 | .attr = { .name = SYSFS_BRIDGE_FDB, | |
7b595756 | 830 | .mode = S_IRUGO, }, |
1da177e4 LT |
831 | .read = brforward_read, |
832 | }; | |
833 | ||
834 | /* | |
835 | * Add entries in sysfs onto the existing network class device | |
836 | * for the bridge. | |
837 | * Adds a attribute group "bridge" containing tuning parameters. | |
838 | * Binary attribute containing the forward table | |
839 | * Sub directory to hold links to interfaces. | |
840 | * | |
841 | * Note: the ifobj exists only to be a subdirectory | |
842 | * to hold links. The ifobj exists in same data structure | |
843 | * as it's parent the bridge so reference counting works. | |
844 | */ | |
845 | int br_sysfs_addbr(struct net_device *dev) | |
846 | { | |
43cb76d9 | 847 | struct kobject *brobj = &dev->dev.kobj; |
1da177e4 LT |
848 | struct net_bridge *br = netdev_priv(dev); |
849 | int err; | |
850 | ||
851 | err = sysfs_create_group(brobj, &bridge_group); | |
852 | if (err) { | |
853 | pr_info("%s: can't create group %s/%s\n", | |
0dc47877 | 854 | __func__, dev->name, bridge_group.name); |
1da177e4 LT |
855 | goto out1; |
856 | } | |
857 | ||
858 | err = sysfs_create_bin_file(brobj, &bridge_forward); | |
859 | if (err) { | |
1842c4be | 860 | pr_info("%s: can't create attribute file %s/%s\n", |
0dc47877 | 861 | __func__, dev->name, bridge_forward.attr.name); |
1da177e4 LT |
862 | goto out2; |
863 | } | |
864 | ||
43b98c4a GKH |
865 | br->ifobj = kobject_create_and_add(SYSFS_BRIDGE_PORT_SUBDIR, brobj); |
866 | if (!br->ifobj) { | |
1da177e4 | 867 | pr_info("%s: can't add kobject (directory) %s/%s\n", |
0dc47877 | 868 | __func__, dev->name, SYSFS_BRIDGE_PORT_SUBDIR); |
1da177e4 LT |
869 | goto out3; |
870 | } | |
871 | return 0; | |
872 | out3: | |
43cb76d9 | 873 | sysfs_remove_bin_file(&dev->dev.kobj, &bridge_forward); |
1da177e4 | 874 | out2: |
43cb76d9 | 875 | sysfs_remove_group(&dev->dev.kobj, &bridge_group); |
1da177e4 LT |
876 | out1: |
877 | return err; | |
878 | ||
879 | } | |
880 | ||
881 | void br_sysfs_delbr(struct net_device *dev) | |
882 | { | |
43cb76d9 | 883 | struct kobject *kobj = &dev->dev.kobj; |
1da177e4 LT |
884 | struct net_bridge *br = netdev_priv(dev); |
885 | ||
78a2d906 | 886 | kobject_put(br->ifobj); |
1da177e4 LT |
887 | sysfs_remove_bin_file(kobj, &bridge_forward); |
888 | sysfs_remove_group(kobj, &bridge_group); | |
889 | } |