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> | |
174cd4b1 | 22 | #include <linux/sched/signal.h> |
1da177e4 LT |
23 | |
24 | #include "br_private.h" | |
25 | ||
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 | ||
047831a9 XL |
47 | if (!rtnl_trylock()) |
48 | return restart_syscall(); | |
49 | ||
8d4698f7 | 50 | err = (*set)(br, val); |
047831a9 XL |
51 | if (!err) |
52 | netdev_state_change(br->dev); | |
53 | rtnl_unlock(); | |
54 | ||
8d4698f7 | 55 | return err ? err : len; |
1da177e4 LT |
56 | } |
57 | ||
58 | ||
fbf2671b | 59 | static ssize_t forward_delay_show(struct device *d, |
43cb76d9 | 60 | struct device_attribute *attr, char *buf) |
1da177e4 | 61 | { |
43cb76d9 | 62 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
63 | return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->forward_delay)); |
64 | } | |
65 | ||
fbf2671b | 66 | static ssize_t forward_delay_store(struct device *d, |
43cb76d9 GKH |
67 | struct device_attribute *attr, |
68 | const char *buf, size_t len) | |
1da177e4 | 69 | { |
14f98f25 | 70 | return store_bridge_parm(d, buf, len, br_set_forward_delay); |
1da177e4 | 71 | } |
fbf2671b | 72 | static DEVICE_ATTR_RW(forward_delay); |
1da177e4 | 73 | |
fbf2671b | 74 | static ssize_t hello_time_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 75 | char *buf) |
1da177e4 LT |
76 | { |
77 | return sprintf(buf, "%lu\n", | |
43cb76d9 | 78 | jiffies_to_clock_t(to_bridge(d)->hello_time)); |
1da177e4 LT |
79 | } |
80 | ||
fbf2671b | 81 | static ssize_t hello_time_store(struct device *d, |
43cb76d9 | 82 | struct device_attribute *attr, const char *buf, |
1da177e4 LT |
83 | size_t len) |
84 | { | |
14f98f25 | 85 | return store_bridge_parm(d, buf, len, br_set_hello_time); |
1da177e4 | 86 | } |
fbf2671b | 87 | static DEVICE_ATTR_RW(hello_time); |
1da177e4 | 88 | |
fbf2671b | 89 | static ssize_t max_age_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 90 | char *buf) |
1da177e4 LT |
91 | { |
92 | return sprintf(buf, "%lu\n", | |
43cb76d9 | 93 | jiffies_to_clock_t(to_bridge(d)->max_age)); |
1da177e4 LT |
94 | } |
95 | ||
fbf2671b | 96 | static ssize_t max_age_store(struct device *d, struct device_attribute *attr, |
43cb76d9 | 97 | const char *buf, size_t len) |
1da177e4 | 98 | { |
14f98f25 | 99 | return store_bridge_parm(d, buf, len, br_set_max_age); |
1da177e4 | 100 | } |
fbf2671b | 101 | static DEVICE_ATTR_RW(max_age); |
1da177e4 | 102 | |
fbf2671b | 103 | static ssize_t ageing_time_show(struct device *d, |
43cb76d9 | 104 | struct device_attribute *attr, char *buf) |
1da177e4 | 105 | { |
43cb76d9 | 106 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
107 | return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->ageing_time)); |
108 | } | |
109 | ||
8d4698f7 | 110 | static int set_ageing_time(struct net_bridge *br, unsigned long val) |
1da177e4 | 111 | { |
047831a9 | 112 | return br_set_ageing_time(br, val); |
1da177e4 LT |
113 | } |
114 | ||
fbf2671b | 115 | static ssize_t ageing_time_store(struct device *d, |
43cb76d9 GKH |
116 | struct device_attribute *attr, |
117 | const char *buf, size_t len) | |
1da177e4 | 118 | { |
43cb76d9 | 119 | return store_bridge_parm(d, buf, len, set_ageing_time); |
1da177e4 | 120 | } |
fbf2671b | 121 | static DEVICE_ATTR_RW(ageing_time); |
1da177e4 | 122 | |
fbf2671b | 123 | static ssize_t stp_state_show(struct device *d, |
43cb76d9 | 124 | struct device_attribute *attr, char *buf) |
1da177e4 | 125 | { |
43cb76d9 | 126 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
127 | return sprintf(buf, "%d\n", br->stp_enabled); |
128 | } | |
129 | ||
1da177e4 | 130 | |
4436156b | 131 | static int set_stp_state(struct net_bridge *br, unsigned long val) |
1da177e4 | 132 | { |
17120889 | 133 | br_stp_set_enabled(br, val); |
17120889 | 134 | |
4436156b XL |
135 | return 0; |
136 | } | |
137 | ||
138 | static ssize_t stp_state_store(struct device *d, | |
139 | struct device_attribute *attr, const char *buf, | |
140 | size_t len) | |
141 | { | |
142 | return store_bridge_parm(d, buf, len, set_stp_state); | |
1da177e4 | 143 | } |
fbf2671b | 144 | static DEVICE_ATTR_RW(stp_state); |
1da177e4 | 145 | |
fbf2671b | 146 | static ssize_t group_fwd_mask_show(struct device *d, |
147 | struct device_attribute *attr, | |
148 | char *buf) | |
515853cc | 149 | { |
150 | struct net_bridge *br = to_bridge(d); | |
151 | return sprintf(buf, "%#x\n", br->group_fwd_mask); | |
152 | } | |
153 | ||
347db6b4 | 154 | static int set_group_fwd_mask(struct net_bridge *br, unsigned long val) |
515853cc | 155 | { |
515853cc | 156 | if (val & BR_GROUPFWD_RESTRICTED) |
157 | return -EINVAL; | |
158 | ||
159 | br->group_fwd_mask = val; | |
160 | ||
347db6b4 XL |
161 | return 0; |
162 | } | |
163 | ||
164 | static ssize_t group_fwd_mask_store(struct device *d, | |
165 | struct device_attribute *attr, | |
166 | const char *buf, | |
167 | size_t len) | |
168 | { | |
169 | return store_bridge_parm(d, buf, len, set_group_fwd_mask); | |
515853cc | 170 | } |
fbf2671b | 171 | static DEVICE_ATTR_RW(group_fwd_mask); |
515853cc | 172 | |
fbf2671b | 173 | static ssize_t priority_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 174 | char *buf) |
1da177e4 | 175 | { |
43cb76d9 | 176 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
177 | return sprintf(buf, "%d\n", |
178 | (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1]); | |
179 | } | |
180 | ||
8d4698f7 | 181 | static int set_priority(struct net_bridge *br, unsigned long val) |
1da177e4 LT |
182 | { |
183 | br_stp_set_bridge_priority(br, (u16) val); | |
8d4698f7 | 184 | return 0; |
1da177e4 LT |
185 | } |
186 | ||
fbf2671b | 187 | static ssize_t priority_store(struct device *d, struct device_attribute *attr, |
188 | const char *buf, size_t len) | |
1da177e4 | 189 | { |
43cb76d9 | 190 | return store_bridge_parm(d, buf, len, set_priority); |
1da177e4 | 191 | } |
fbf2671b | 192 | static DEVICE_ATTR_RW(priority); |
1da177e4 | 193 | |
fbf2671b | 194 | static ssize_t root_id_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 195 | char *buf) |
1da177e4 | 196 | { |
43cb76d9 | 197 | return br_show_bridge_id(buf, &to_bridge(d)->designated_root); |
1da177e4 | 198 | } |
fbf2671b | 199 | static DEVICE_ATTR_RO(root_id); |
1da177e4 | 200 | |
fbf2671b | 201 | static ssize_t bridge_id_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 202 | char *buf) |
1da177e4 | 203 | { |
43cb76d9 | 204 | return br_show_bridge_id(buf, &to_bridge(d)->bridge_id); |
1da177e4 | 205 | } |
fbf2671b | 206 | static DEVICE_ATTR_RO(bridge_id); |
1da177e4 | 207 | |
fbf2671b | 208 | static ssize_t root_port_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 209 | char *buf) |
1da177e4 | 210 | { |
43cb76d9 | 211 | return sprintf(buf, "%d\n", to_bridge(d)->root_port); |
1da177e4 | 212 | } |
fbf2671b | 213 | static DEVICE_ATTR_RO(root_port); |
1da177e4 | 214 | |
fbf2671b | 215 | static ssize_t root_path_cost_show(struct device *d, |
43cb76d9 | 216 | struct device_attribute *attr, char *buf) |
1da177e4 | 217 | { |
43cb76d9 | 218 | return sprintf(buf, "%d\n", to_bridge(d)->root_path_cost); |
1da177e4 | 219 | } |
fbf2671b | 220 | static DEVICE_ATTR_RO(root_path_cost); |
1da177e4 | 221 | |
fbf2671b | 222 | static ssize_t topology_change_show(struct device *d, |
43cb76d9 | 223 | struct device_attribute *attr, char *buf) |
1da177e4 | 224 | { |
43cb76d9 | 225 | return sprintf(buf, "%d\n", to_bridge(d)->topology_change); |
1da177e4 | 226 | } |
fbf2671b | 227 | static DEVICE_ATTR_RO(topology_change); |
1da177e4 | 228 | |
fbf2671b | 229 | static ssize_t topology_change_detected_show(struct device *d, |
43cb76d9 GKH |
230 | struct device_attribute *attr, |
231 | char *buf) | |
1da177e4 | 232 | { |
43cb76d9 | 233 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
234 | return sprintf(buf, "%d\n", br->topology_change_detected); |
235 | } | |
fbf2671b | 236 | static DEVICE_ATTR_RO(topology_change_detected); |
1da177e4 | 237 | |
fbf2671b | 238 | static ssize_t hello_timer_show(struct device *d, |
43cb76d9 | 239 | struct device_attribute *attr, char *buf) |
1da177e4 | 240 | { |
43cb76d9 | 241 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
242 | return sprintf(buf, "%ld\n", br_timer_value(&br->hello_timer)); |
243 | } | |
fbf2671b | 244 | static DEVICE_ATTR_RO(hello_timer); |
1da177e4 | 245 | |
fbf2671b | 246 | static ssize_t tcn_timer_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 247 | char *buf) |
1da177e4 | 248 | { |
43cb76d9 | 249 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
250 | return sprintf(buf, "%ld\n", br_timer_value(&br->tcn_timer)); |
251 | } | |
fbf2671b | 252 | static DEVICE_ATTR_RO(tcn_timer); |
1da177e4 | 253 | |
fbf2671b | 254 | static ssize_t topology_change_timer_show(struct device *d, |
43cb76d9 GKH |
255 | struct device_attribute *attr, |
256 | char *buf) | |
1da177e4 | 257 | { |
43cb76d9 | 258 | struct net_bridge *br = to_bridge(d); |
1da177e4 LT |
259 | return sprintf(buf, "%ld\n", br_timer_value(&br->topology_change_timer)); |
260 | } | |
fbf2671b | 261 | static DEVICE_ATTR_RO(topology_change_timer); |
1da177e4 | 262 | |
fbf2671b | 263 | static ssize_t gc_timer_show(struct device *d, struct device_attribute *attr, |
43cb76d9 | 264 | char *buf) |
1da177e4 | 265 | { |
43cb76d9 | 266 | struct net_bridge *br = to_bridge(d); |
f7cdee8a | 267 | return sprintf(buf, "%ld\n", br_timer_value(&br->gc_work.timer)); |
1da177e4 | 268 | } |
fbf2671b | 269 | static DEVICE_ATTR_RO(gc_timer); |
1da177e4 | 270 | |
fbf2671b | 271 | static ssize_t group_addr_show(struct device *d, |
43cb76d9 | 272 | struct device_attribute *attr, char *buf) |
fda93d92 | 273 | { |
43cb76d9 | 274 | struct net_bridge *br = to_bridge(d); |
223b229b | 275 | return sprintf(buf, "%pM\n", br->group_addr); |
fda93d92 SH |
276 | } |
277 | ||
fbf2671b | 278 | static ssize_t group_addr_store(struct device *d, |
43cb76d9 GKH |
279 | struct device_attribute *attr, |
280 | const char *buf, size_t len) | |
fda93d92 | 281 | { |
43cb76d9 | 282 | struct net_bridge *br = to_bridge(d); |
4197f24b | 283 | u8 new_addr[6]; |
fda93d92 | 284 | |
cb990503 | 285 | if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN)) |
fda93d92 SH |
286 | return -EPERM; |
287 | ||
223b229b | 288 | if (!mac_pton(buf, new_addr)) |
fda93d92 SH |
289 | return -EINVAL; |
290 | ||
46acc460 | 291 | if (!is_link_local_ether_addr(new_addr)) |
fda93d92 SH |
292 | return -EINVAL; |
293 | ||
f64f9e71 JP |
294 | if (new_addr[5] == 1 || /* 802.3x Pause address */ |
295 | new_addr[5] == 2 || /* 802.3ad Slow protocols */ | |
296 | new_addr[5] == 3) /* 802.1X PAE address */ | |
fda93d92 SH |
297 | return -EINVAL; |
298 | ||
204177f3 TM |
299 | if (!rtnl_trylock()) |
300 | return restart_syscall(); | |
301 | ||
fda93d92 | 302 | spin_lock_bh(&br->lock); |
223b229b | 303 | ether_addr_copy(br->group_addr, new_addr); |
fda93d92 | 304 | spin_unlock_bh(&br->lock); |
204177f3 TM |
305 | |
306 | br->group_addr_set = true; | |
307 | br_recalculate_fwd_mask(br); | |
047831a9 | 308 | netdev_state_change(br->dev); |
204177f3 TM |
309 | |
310 | rtnl_unlock(); | |
311 | ||
fda93d92 SH |
312 | return len; |
313 | } | |
314 | ||
fbf2671b | 315 | static DEVICE_ATTR_RW(group_addr); |
fda93d92 | 316 | |
14f31bb3 XL |
317 | static int set_flush(struct net_bridge *br, unsigned long val) |
318 | { | |
319 | br_fdb_flush(br); | |
320 | return 0; | |
321 | } | |
322 | ||
fbf2671b | 323 | static ssize_t flush_store(struct device *d, |
9cf63747 SH |
324 | struct device_attribute *attr, |
325 | const char *buf, size_t len) | |
326 | { | |
14f31bb3 | 327 | return store_bridge_parm(d, buf, len, set_flush); |
9cf63747 | 328 | } |
fbf2671b | 329 | static DEVICE_ATTR_WO(flush); |
fda93d92 | 330 | |
0909e117 | 331 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
fbf2671b | 332 | static ssize_t multicast_router_show(struct device *d, |
0909e117 HX |
333 | struct device_attribute *attr, char *buf) |
334 | { | |
335 | struct net_bridge *br = to_bridge(d); | |
336 | return sprintf(buf, "%d\n", br->multicast_router); | |
337 | } | |
338 | ||
fbf2671b | 339 | static ssize_t multicast_router_store(struct device *d, |
0909e117 HX |
340 | struct device_attribute *attr, |
341 | const char *buf, size_t len) | |
342 | { | |
343 | return store_bridge_parm(d, buf, len, br_multicast_set_router); | |
344 | } | |
fbf2671b | 345 | static DEVICE_ATTR_RW(multicast_router); |
561f1103 | 346 | |
fbf2671b | 347 | static ssize_t multicast_snooping_show(struct device *d, |
561f1103 HX |
348 | struct device_attribute *attr, |
349 | char *buf) | |
350 | { | |
351 | struct net_bridge *br = to_bridge(d); | |
352 | return sprintf(buf, "%d\n", !br->multicast_disabled); | |
353 | } | |
354 | ||
fbf2671b | 355 | static ssize_t multicast_snooping_store(struct device *d, |
561f1103 HX |
356 | struct device_attribute *attr, |
357 | const char *buf, size_t len) | |
358 | { | |
359 | return store_bridge_parm(d, buf, len, br_multicast_toggle); | |
360 | } | |
fbf2671b | 361 | static DEVICE_ATTR_RW(multicast_snooping); |
b195167f | 362 | |
fbf2671b | 363 | static ssize_t multicast_query_use_ifaddr_show(struct device *d, |
364 | struct device_attribute *attr, | |
365 | char *buf) | |
1c8ad5bf CW |
366 | { |
367 | struct net_bridge *br = to_bridge(d); | |
368 | return sprintf(buf, "%d\n", br->multicast_query_use_ifaddr); | |
369 | } | |
370 | ||
371 | static int set_query_use_ifaddr(struct net_bridge *br, unsigned long val) | |
372 | { | |
373 | br->multicast_query_use_ifaddr = !!val; | |
374 | return 0; | |
375 | } | |
376 | ||
377 | static ssize_t | |
fbf2671b | 378 | multicast_query_use_ifaddr_store(struct device *d, |
1c8ad5bf CW |
379 | struct device_attribute *attr, |
380 | const char *buf, size_t len) | |
381 | { | |
382 | return store_bridge_parm(d, buf, len, set_query_use_ifaddr); | |
383 | } | |
fbf2671b | 384 | static DEVICE_ATTR_RW(multicast_query_use_ifaddr); |
1c8ad5bf | 385 | |
fbf2671b | 386 | static ssize_t multicast_querier_show(struct device *d, |
c5c23260 HX |
387 | struct device_attribute *attr, |
388 | char *buf) | |
389 | { | |
390 | struct net_bridge *br = to_bridge(d); | |
391 | return sprintf(buf, "%d\n", br->multicast_querier); | |
392 | } | |
393 | ||
fbf2671b | 394 | static ssize_t multicast_querier_store(struct device *d, |
c5c23260 HX |
395 | struct device_attribute *attr, |
396 | const char *buf, size_t len) | |
397 | { | |
398 | return store_bridge_parm(d, buf, len, br_multicast_set_querier); | |
399 | } | |
fbf2671b | 400 | static DEVICE_ATTR_RW(multicast_querier); |
c5c23260 | 401 | |
fbf2671b | 402 | static ssize_t hash_elasticity_show(struct device *d, |
b195167f HX |
403 | struct device_attribute *attr, char *buf) |
404 | { | |
405 | struct net_bridge *br = to_bridge(d); | |
406 | return sprintf(buf, "%u\n", br->hash_elasticity); | |
407 | } | |
408 | ||
409 | static int set_elasticity(struct net_bridge *br, unsigned long val) | |
410 | { | |
411 | br->hash_elasticity = val; | |
412 | return 0; | |
413 | } | |
414 | ||
fbf2671b | 415 | static ssize_t hash_elasticity_store(struct device *d, |
b195167f HX |
416 | struct device_attribute *attr, |
417 | const char *buf, size_t len) | |
418 | { | |
419 | return store_bridge_parm(d, buf, len, set_elasticity); | |
420 | } | |
fbf2671b | 421 | static DEVICE_ATTR_RW(hash_elasticity); |
b195167f | 422 | |
fbf2671b | 423 | static ssize_t hash_max_show(struct device *d, struct device_attribute *attr, |
b195167f HX |
424 | char *buf) |
425 | { | |
426 | struct net_bridge *br = to_bridge(d); | |
427 | return sprintf(buf, "%u\n", br->hash_max); | |
428 | } | |
429 | ||
fbf2671b | 430 | static ssize_t hash_max_store(struct device *d, struct device_attribute *attr, |
b195167f HX |
431 | const char *buf, size_t len) |
432 | { | |
433 | return store_bridge_parm(d, buf, len, br_multicast_set_hash_max); | |
434 | } | |
fbf2671b | 435 | static DEVICE_ATTR_RW(hash_max); |
d902eee4 | 436 | |
5e923585 NA |
437 | static ssize_t multicast_igmp_version_show(struct device *d, |
438 | struct device_attribute *attr, | |
439 | char *buf) | |
440 | { | |
441 | struct net_bridge *br = to_bridge(d); | |
442 | ||
443 | return sprintf(buf, "%u\n", br->multicast_igmp_version); | |
444 | } | |
445 | ||
446 | static ssize_t multicast_igmp_version_store(struct device *d, | |
447 | struct device_attribute *attr, | |
448 | const char *buf, size_t len) | |
449 | { | |
450 | return store_bridge_parm(d, buf, len, br_multicast_set_igmp_version); | |
451 | } | |
452 | static DEVICE_ATTR_RW(multicast_igmp_version); | |
453 | ||
fbf2671b | 454 | static ssize_t multicast_last_member_count_show(struct device *d, |
d902eee4 HX |
455 | struct device_attribute *attr, |
456 | char *buf) | |
457 | { | |
458 | struct net_bridge *br = to_bridge(d); | |
459 | return sprintf(buf, "%u\n", br->multicast_last_member_count); | |
460 | } | |
461 | ||
462 | static int set_last_member_count(struct net_bridge *br, unsigned long val) | |
463 | { | |
464 | br->multicast_last_member_count = val; | |
465 | return 0; | |
466 | } | |
467 | ||
fbf2671b | 468 | static ssize_t multicast_last_member_count_store(struct device *d, |
d902eee4 HX |
469 | struct device_attribute *attr, |
470 | const char *buf, size_t len) | |
471 | { | |
472 | return store_bridge_parm(d, buf, len, set_last_member_count); | |
473 | } | |
fbf2671b | 474 | static DEVICE_ATTR_RW(multicast_last_member_count); |
d902eee4 | 475 | |
fbf2671b | 476 | static ssize_t multicast_startup_query_count_show( |
d902eee4 HX |
477 | struct device *d, struct device_attribute *attr, char *buf) |
478 | { | |
479 | struct net_bridge *br = to_bridge(d); | |
480 | return sprintf(buf, "%u\n", br->multicast_startup_query_count); | |
481 | } | |
482 | ||
483 | static int set_startup_query_count(struct net_bridge *br, unsigned long val) | |
484 | { | |
485 | br->multicast_startup_query_count = val; | |
486 | return 0; | |
487 | } | |
488 | ||
fbf2671b | 489 | static ssize_t multicast_startup_query_count_store( |
d902eee4 HX |
490 | struct device *d, struct device_attribute *attr, const char *buf, |
491 | size_t len) | |
492 | { | |
493 | return store_bridge_parm(d, buf, len, set_startup_query_count); | |
494 | } | |
fbf2671b | 495 | static DEVICE_ATTR_RW(multicast_startup_query_count); |
d902eee4 | 496 | |
fbf2671b | 497 | static ssize_t multicast_last_member_interval_show( |
d902eee4 HX |
498 | struct device *d, struct device_attribute *attr, char *buf) |
499 | { | |
500 | struct net_bridge *br = to_bridge(d); | |
501 | return sprintf(buf, "%lu\n", | |
502 | jiffies_to_clock_t(br->multicast_last_member_interval)); | |
503 | } | |
504 | ||
505 | static int set_last_member_interval(struct net_bridge *br, unsigned long val) | |
506 | { | |
507 | br->multicast_last_member_interval = clock_t_to_jiffies(val); | |
508 | return 0; | |
509 | } | |
510 | ||
fbf2671b | 511 | static ssize_t multicast_last_member_interval_store( |
d902eee4 HX |
512 | struct device *d, struct device_attribute *attr, const char *buf, |
513 | size_t len) | |
514 | { | |
515 | return store_bridge_parm(d, buf, len, set_last_member_interval); | |
516 | } | |
fbf2671b | 517 | static DEVICE_ATTR_RW(multicast_last_member_interval); |
d902eee4 | 518 | |
fbf2671b | 519 | static ssize_t multicast_membership_interval_show( |
d902eee4 HX |
520 | struct device *d, struct device_attribute *attr, char *buf) |
521 | { | |
522 | struct net_bridge *br = to_bridge(d); | |
523 | return sprintf(buf, "%lu\n", | |
524 | jiffies_to_clock_t(br->multicast_membership_interval)); | |
525 | } | |
526 | ||
527 | static int set_membership_interval(struct net_bridge *br, unsigned long val) | |
528 | { | |
529 | br->multicast_membership_interval = clock_t_to_jiffies(val); | |
530 | return 0; | |
531 | } | |
532 | ||
fbf2671b | 533 | static ssize_t multicast_membership_interval_store( |
d902eee4 HX |
534 | struct device *d, struct device_attribute *attr, const char *buf, |
535 | size_t len) | |
536 | { | |
537 | return store_bridge_parm(d, buf, len, set_membership_interval); | |
538 | } | |
fbf2671b | 539 | static DEVICE_ATTR_RW(multicast_membership_interval); |
d902eee4 | 540 | |
fbf2671b | 541 | static ssize_t multicast_querier_interval_show(struct device *d, |
d902eee4 HX |
542 | struct device_attribute *attr, |
543 | char *buf) | |
544 | { | |
545 | struct net_bridge *br = to_bridge(d); | |
546 | return sprintf(buf, "%lu\n", | |
547 | jiffies_to_clock_t(br->multicast_querier_interval)); | |
548 | } | |
549 | ||
550 | static int set_querier_interval(struct net_bridge *br, unsigned long val) | |
551 | { | |
552 | br->multicast_querier_interval = clock_t_to_jiffies(val); | |
553 | return 0; | |
554 | } | |
555 | ||
fbf2671b | 556 | static ssize_t multicast_querier_interval_store(struct device *d, |
d902eee4 HX |
557 | struct device_attribute *attr, |
558 | const char *buf, size_t len) | |
559 | { | |
560 | return store_bridge_parm(d, buf, len, set_querier_interval); | |
561 | } | |
fbf2671b | 562 | static DEVICE_ATTR_RW(multicast_querier_interval); |
d902eee4 | 563 | |
fbf2671b | 564 | static ssize_t multicast_query_interval_show(struct device *d, |
d902eee4 HX |
565 | struct device_attribute *attr, |
566 | char *buf) | |
567 | { | |
568 | struct net_bridge *br = to_bridge(d); | |
569 | return sprintf(buf, "%lu\n", | |
570 | jiffies_to_clock_t(br->multicast_query_interval)); | |
571 | } | |
572 | ||
573 | static int set_query_interval(struct net_bridge *br, unsigned long val) | |
574 | { | |
575 | br->multicast_query_interval = clock_t_to_jiffies(val); | |
576 | return 0; | |
577 | } | |
578 | ||
fbf2671b | 579 | static ssize_t multicast_query_interval_store(struct device *d, |
d902eee4 HX |
580 | struct device_attribute *attr, |
581 | const char *buf, size_t len) | |
582 | { | |
583 | return store_bridge_parm(d, buf, len, set_query_interval); | |
584 | } | |
fbf2671b | 585 | static DEVICE_ATTR_RW(multicast_query_interval); |
d902eee4 | 586 | |
fbf2671b | 587 | static ssize_t multicast_query_response_interval_show( |
d902eee4 HX |
588 | struct device *d, struct device_attribute *attr, char *buf) |
589 | { | |
590 | struct net_bridge *br = to_bridge(d); | |
591 | return sprintf( | |
592 | buf, "%lu\n", | |
593 | jiffies_to_clock_t(br->multicast_query_response_interval)); | |
594 | } | |
595 | ||
596 | static int set_query_response_interval(struct net_bridge *br, unsigned long val) | |
597 | { | |
598 | br->multicast_query_response_interval = clock_t_to_jiffies(val); | |
599 | return 0; | |
600 | } | |
601 | ||
fbf2671b | 602 | static ssize_t multicast_query_response_interval_store( |
d902eee4 HX |
603 | struct device *d, struct device_attribute *attr, const char *buf, |
604 | size_t len) | |
605 | { | |
606 | return store_bridge_parm(d, buf, len, set_query_response_interval); | |
607 | } | |
fbf2671b | 608 | static DEVICE_ATTR_RW(multicast_query_response_interval); |
d902eee4 | 609 | |
fbf2671b | 610 | static ssize_t multicast_startup_query_interval_show( |
d902eee4 HX |
611 | struct device *d, struct device_attribute *attr, char *buf) |
612 | { | |
613 | struct net_bridge *br = to_bridge(d); | |
614 | return sprintf( | |
615 | buf, "%lu\n", | |
616 | jiffies_to_clock_t(br->multicast_startup_query_interval)); | |
617 | } | |
618 | ||
619 | static int set_startup_query_interval(struct net_bridge *br, unsigned long val) | |
620 | { | |
621 | br->multicast_startup_query_interval = clock_t_to_jiffies(val); | |
622 | return 0; | |
623 | } | |
624 | ||
fbf2671b | 625 | static ssize_t multicast_startup_query_interval_store( |
d902eee4 HX |
626 | struct device *d, struct device_attribute *attr, const char *buf, |
627 | size_t len) | |
628 | { | |
629 | return store_bridge_parm(d, buf, len, set_startup_query_interval); | |
630 | } | |
fbf2671b | 631 | static DEVICE_ATTR_RW(multicast_startup_query_interval); |
1080ab95 NA |
632 | |
633 | static ssize_t multicast_stats_enabled_show(struct device *d, | |
634 | struct device_attribute *attr, | |
635 | char *buf) | |
636 | { | |
637 | struct net_bridge *br = to_bridge(d); | |
638 | ||
639 | return sprintf(buf, "%u\n", br->multicast_stats_enabled); | |
640 | } | |
641 | ||
642 | static int set_stats_enabled(struct net_bridge *br, unsigned long val) | |
643 | { | |
644 | br->multicast_stats_enabled = !!val; | |
645 | return 0; | |
646 | } | |
647 | ||
648 | static ssize_t multicast_stats_enabled_store(struct device *d, | |
649 | struct device_attribute *attr, | |
650 | const char *buf, | |
651 | size_t len) | |
652 | { | |
653 | return store_bridge_parm(d, buf, len, set_stats_enabled); | |
654 | } | |
655 | static DEVICE_ATTR_RW(multicast_stats_enabled); | |
aa2ae3e7 NA |
656 | |
657 | #if IS_ENABLED(CONFIG_IPV6) | |
658 | static ssize_t multicast_mld_version_show(struct device *d, | |
659 | struct device_attribute *attr, | |
660 | char *buf) | |
661 | { | |
662 | struct net_bridge *br = to_bridge(d); | |
663 | ||
664 | return sprintf(buf, "%u\n", br->multicast_mld_version); | |
665 | } | |
666 | ||
667 | static ssize_t multicast_mld_version_store(struct device *d, | |
668 | struct device_attribute *attr, | |
669 | const char *buf, size_t len) | |
670 | { | |
671 | return store_bridge_parm(d, buf, len, br_multicast_set_mld_version); | |
672 | } | |
673 | static DEVICE_ATTR_RW(multicast_mld_version); | |
674 | #endif | |
0909e117 | 675 | #endif |
34666d46 | 676 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
fbf2671b | 677 | static ssize_t nf_call_iptables_show( |
4df53d8b PM |
678 | struct device *d, struct device_attribute *attr, char *buf) |
679 | { | |
680 | struct net_bridge *br = to_bridge(d); | |
681 | return sprintf(buf, "%u\n", br->nf_call_iptables); | |
682 | } | |
683 | ||
684 | static int set_nf_call_iptables(struct net_bridge *br, unsigned long val) | |
685 | { | |
686 | br->nf_call_iptables = val ? true : false; | |
687 | return 0; | |
688 | } | |
689 | ||
fbf2671b | 690 | static ssize_t nf_call_iptables_store( |
4df53d8b PM |
691 | struct device *d, struct device_attribute *attr, const char *buf, |
692 | size_t len) | |
693 | { | |
694 | return store_bridge_parm(d, buf, len, set_nf_call_iptables); | |
695 | } | |
fbf2671b | 696 | static DEVICE_ATTR_RW(nf_call_iptables); |
4df53d8b | 697 | |
fbf2671b | 698 | static ssize_t nf_call_ip6tables_show( |
4df53d8b PM |
699 | struct device *d, struct device_attribute *attr, char *buf) |
700 | { | |
701 | struct net_bridge *br = to_bridge(d); | |
702 | return sprintf(buf, "%u\n", br->nf_call_ip6tables); | |
703 | } | |
704 | ||
705 | static int set_nf_call_ip6tables(struct net_bridge *br, unsigned long val) | |
706 | { | |
707 | br->nf_call_ip6tables = val ? true : false; | |
708 | return 0; | |
709 | } | |
710 | ||
fbf2671b | 711 | static ssize_t nf_call_ip6tables_store( |
4df53d8b PM |
712 | struct device *d, struct device_attribute *attr, const char *buf, |
713 | size_t len) | |
714 | { | |
715 | return store_bridge_parm(d, buf, len, set_nf_call_ip6tables); | |
716 | } | |
fbf2671b | 717 | static DEVICE_ATTR_RW(nf_call_ip6tables); |
4df53d8b | 718 | |
fbf2671b | 719 | static ssize_t nf_call_arptables_show( |
4df53d8b PM |
720 | struct device *d, struct device_attribute *attr, char *buf) |
721 | { | |
722 | struct net_bridge *br = to_bridge(d); | |
723 | return sprintf(buf, "%u\n", br->nf_call_arptables); | |
724 | } | |
725 | ||
726 | static int set_nf_call_arptables(struct net_bridge *br, unsigned long val) | |
727 | { | |
728 | br->nf_call_arptables = val ? true : false; | |
729 | return 0; | |
730 | } | |
731 | ||
fbf2671b | 732 | static ssize_t nf_call_arptables_store( |
4df53d8b PM |
733 | struct device *d, struct device_attribute *attr, const char *buf, |
734 | size_t len) | |
735 | { | |
736 | return store_bridge_parm(d, buf, len, set_nf_call_arptables); | |
737 | } | |
fbf2671b | 738 | static DEVICE_ATTR_RW(nf_call_arptables); |
4df53d8b | 739 | #endif |
243a2e63 | 740 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
fbf2671b | 741 | static ssize_t vlan_filtering_show(struct device *d, |
243a2e63 VY |
742 | struct device_attribute *attr, |
743 | char *buf) | |
744 | { | |
745 | struct net_bridge *br = to_bridge(d); | |
746 | return sprintf(buf, "%d\n", br->vlan_enabled); | |
747 | } | |
748 | ||
fbf2671b | 749 | static ssize_t vlan_filtering_store(struct device *d, |
243a2e63 VY |
750 | struct device_attribute *attr, |
751 | const char *buf, size_t len) | |
752 | { | |
753 | return store_bridge_parm(d, buf, len, br_vlan_filter_toggle); | |
754 | } | |
fbf2671b | 755 | static DEVICE_ATTR_RW(vlan_filtering); |
204177f3 TM |
756 | |
757 | static ssize_t vlan_protocol_show(struct device *d, | |
758 | struct device_attribute *attr, | |
759 | char *buf) | |
760 | { | |
761 | struct net_bridge *br = to_bridge(d); | |
762 | return sprintf(buf, "%#06x\n", ntohs(br->vlan_proto)); | |
763 | } | |
764 | ||
765 | static ssize_t vlan_protocol_store(struct device *d, | |
766 | struct device_attribute *attr, | |
767 | const char *buf, size_t len) | |
768 | { | |
769 | return store_bridge_parm(d, buf, len, br_vlan_set_proto); | |
770 | } | |
771 | static DEVICE_ATTR_RW(vlan_protocol); | |
96a20d9d VY |
772 | |
773 | static ssize_t default_pvid_show(struct device *d, | |
774 | struct device_attribute *attr, | |
775 | char *buf) | |
776 | { | |
777 | struct net_bridge *br = to_bridge(d); | |
778 | return sprintf(buf, "%d\n", br->default_pvid); | |
779 | } | |
780 | ||
781 | static ssize_t default_pvid_store(struct device *d, | |
782 | struct device_attribute *attr, | |
783 | const char *buf, size_t len) | |
784 | { | |
785 | return store_bridge_parm(d, buf, len, br_vlan_set_default_pvid); | |
786 | } | |
787 | static DEVICE_ATTR_RW(default_pvid); | |
6dada9b1 NA |
788 | |
789 | static ssize_t vlan_stats_enabled_show(struct device *d, | |
790 | struct device_attribute *attr, | |
791 | char *buf) | |
792 | { | |
793 | struct net_bridge *br = to_bridge(d); | |
794 | return sprintf(buf, "%u\n", br->vlan_stats_enabled); | |
795 | } | |
796 | ||
797 | static ssize_t vlan_stats_enabled_store(struct device *d, | |
798 | struct device_attribute *attr, | |
799 | const char *buf, size_t len) | |
800 | { | |
801 | return store_bridge_parm(d, buf, len, br_vlan_set_stats); | |
802 | } | |
803 | static DEVICE_ATTR_RW(vlan_stats_enabled); | |
243a2e63 | 804 | #endif |
0909e117 | 805 | |
1da177e4 | 806 | static struct attribute *bridge_attrs[] = { |
43cb76d9 GKH |
807 | &dev_attr_forward_delay.attr, |
808 | &dev_attr_hello_time.attr, | |
809 | &dev_attr_max_age.attr, | |
810 | &dev_attr_ageing_time.attr, | |
811 | &dev_attr_stp_state.attr, | |
515853cc | 812 | &dev_attr_group_fwd_mask.attr, |
43cb76d9 GKH |
813 | &dev_attr_priority.attr, |
814 | &dev_attr_bridge_id.attr, | |
815 | &dev_attr_root_id.attr, | |
816 | &dev_attr_root_path_cost.attr, | |
817 | &dev_attr_root_port.attr, | |
818 | &dev_attr_topology_change.attr, | |
819 | &dev_attr_topology_change_detected.attr, | |
820 | &dev_attr_hello_timer.attr, | |
821 | &dev_attr_tcn_timer.attr, | |
822 | &dev_attr_topology_change_timer.attr, | |
823 | &dev_attr_gc_timer.attr, | |
824 | &dev_attr_group_addr.attr, | |
9cf63747 | 825 | &dev_attr_flush.attr, |
0909e117 HX |
826 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
827 | &dev_attr_multicast_router.attr, | |
561f1103 | 828 | &dev_attr_multicast_snooping.attr, |
c5c23260 | 829 | &dev_attr_multicast_querier.attr, |
1c8ad5bf | 830 | &dev_attr_multicast_query_use_ifaddr.attr, |
b195167f HX |
831 | &dev_attr_hash_elasticity.attr, |
832 | &dev_attr_hash_max.attr, | |
d902eee4 HX |
833 | &dev_attr_multicast_last_member_count.attr, |
834 | &dev_attr_multicast_startup_query_count.attr, | |
835 | &dev_attr_multicast_last_member_interval.attr, | |
836 | &dev_attr_multicast_membership_interval.attr, | |
837 | &dev_attr_multicast_querier_interval.attr, | |
838 | &dev_attr_multicast_query_interval.attr, | |
839 | &dev_attr_multicast_query_response_interval.attr, | |
840 | &dev_attr_multicast_startup_query_interval.attr, | |
1080ab95 | 841 | &dev_attr_multicast_stats_enabled.attr, |
5e923585 | 842 | &dev_attr_multicast_igmp_version.attr, |
aa2ae3e7 NA |
843 | #if IS_ENABLED(CONFIG_IPV6) |
844 | &dev_attr_multicast_mld_version.attr, | |
845 | #endif | |
4df53d8b | 846 | #endif |
34666d46 | 847 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
4df53d8b PM |
848 | &dev_attr_nf_call_iptables.attr, |
849 | &dev_attr_nf_call_ip6tables.attr, | |
850 | &dev_attr_nf_call_arptables.attr, | |
243a2e63 VY |
851 | #endif |
852 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
853 | &dev_attr_vlan_filtering.attr, | |
204177f3 | 854 | &dev_attr_vlan_protocol.attr, |
96a20d9d | 855 | &dev_attr_default_pvid.attr, |
6dada9b1 | 856 | &dev_attr_vlan_stats_enabled.attr, |
0909e117 | 857 | #endif |
1da177e4 LT |
858 | NULL |
859 | }; | |
860 | ||
cddbb79f | 861 | static const struct attribute_group bridge_group = { |
1da177e4 LT |
862 | .name = SYSFS_BRIDGE_ATTR, |
863 | .attrs = bridge_attrs, | |
864 | }; | |
865 | ||
866 | /* | |
867 | * Export the forwarding information table as a binary file | |
868 | * The records are struct __fdb_entry. | |
869 | * | |
870 | * Returns the number of bytes read. | |
871 | */ | |
2c3c8bea | 872 | static ssize_t brforward_read(struct file *filp, struct kobject *kobj, |
91a69029 ZR |
873 | struct bin_attribute *bin_attr, |
874 | char *buf, loff_t off, size_t count) | |
1da177e4 | 875 | { |
aeb7ed14 | 876 | struct device *dev = kobj_to_dev(kobj); |
43cb76d9 | 877 | struct net_bridge *br = to_bridge(dev); |
1da177e4 LT |
878 | int n; |
879 | ||
880 | /* must read whole records */ | |
881 | if (off % sizeof(struct __fdb_entry) != 0) | |
882 | return -EINVAL; | |
883 | ||
9d6f229f | 884 | n = br_fdb_fillbuf(br, buf, |
1da177e4 LT |
885 | count / sizeof(struct __fdb_entry), |
886 | off / sizeof(struct __fdb_entry)); | |
887 | ||
888 | if (n > 0) | |
889 | n *= sizeof(struct __fdb_entry); | |
9d6f229f | 890 | |
1da177e4 LT |
891 | return n; |
892 | } | |
893 | ||
894 | static struct bin_attribute bridge_forward = { | |
895 | .attr = { .name = SYSFS_BRIDGE_FDB, | |
d6444062 | 896 | .mode = 0444, }, |
1da177e4 LT |
897 | .read = brforward_read, |
898 | }; | |
899 | ||
900 | /* | |
901 | * Add entries in sysfs onto the existing network class device | |
902 | * for the bridge. | |
903 | * Adds a attribute group "bridge" containing tuning parameters. | |
904 | * Binary attribute containing the forward table | |
905 | * Sub directory to hold links to interfaces. | |
906 | * | |
907 | * Note: the ifobj exists only to be a subdirectory | |
908 | * to hold links. The ifobj exists in same data structure | |
909 | * as it's parent the bridge so reference counting works. | |
910 | */ | |
911 | int br_sysfs_addbr(struct net_device *dev) | |
912 | { | |
43cb76d9 | 913 | struct kobject *brobj = &dev->dev.kobj; |
1da177e4 LT |
914 | struct net_bridge *br = netdev_priv(dev); |
915 | int err; | |
916 | ||
917 | err = sysfs_create_group(brobj, &bridge_group); | |
918 | if (err) { | |
919 | pr_info("%s: can't create group %s/%s\n", | |
0dc47877 | 920 | __func__, dev->name, bridge_group.name); |
1da177e4 LT |
921 | goto out1; |
922 | } | |
923 | ||
924 | err = sysfs_create_bin_file(brobj, &bridge_forward); | |
925 | if (err) { | |
1842c4be | 926 | pr_info("%s: can't create attribute file %s/%s\n", |
0dc47877 | 927 | __func__, dev->name, bridge_forward.attr.name); |
1da177e4 LT |
928 | goto out2; |
929 | } | |
930 | ||
43b98c4a GKH |
931 | br->ifobj = kobject_create_and_add(SYSFS_BRIDGE_PORT_SUBDIR, brobj); |
932 | if (!br->ifobj) { | |
1da177e4 | 933 | pr_info("%s: can't add kobject (directory) %s/%s\n", |
0dc47877 | 934 | __func__, dev->name, SYSFS_BRIDGE_PORT_SUBDIR); |
b5958963 | 935 | err = -ENOMEM; |
1da177e4 LT |
936 | goto out3; |
937 | } | |
938 | return 0; | |
939 | out3: | |
43cb76d9 | 940 | sysfs_remove_bin_file(&dev->dev.kobj, &bridge_forward); |
1da177e4 | 941 | out2: |
43cb76d9 | 942 | sysfs_remove_group(&dev->dev.kobj, &bridge_group); |
1da177e4 LT |
943 | out1: |
944 | return err; | |
945 | ||
946 | } | |
947 | ||
948 | void br_sysfs_delbr(struct net_device *dev) | |
949 | { | |
43cb76d9 | 950 | struct kobject *kobj = &dev->dev.kobj; |
1da177e4 LT |
951 | struct net_bridge *br = netdev_priv(dev); |
952 | ||
78a2d906 | 953 | kobject_put(br->ifobj); |
1da177e4 LT |
954 | sysfs_remove_bin_file(kobj, &bridge_forward); |
955 | sysfs_remove_group(kobj, &bridge_group); | |
956 | } |