2 * Sysfs attributes of bridge ports
3 * Linux ethernet bridge
6 * Stephen Hemminger <shemminger@osdl.org>
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.
14 #include <linux/capability.h>
15 #include <linux/kernel.h>
16 #include <linux/netdevice.h>
17 #include <linux/if_bridge.h>
18 #include <linux/rtnetlink.h>
19 #include <linux/spinlock.h>
20 #include <linux/times.h>
22 #include "br_private.h"
24 #define to_dev(obj) container_of(obj, struct device, kobj)
25 #define to_bridge(cd) ((struct net_bridge *)netdev_priv(to_net_dev(cd)))
28 * Common code for storing bridge parameters.
30 static ssize_t store_bridge_parm(struct device *d,
31 const char *buf, size_t len,
32 int (*set)(struct net_bridge *, unsigned long))
34 struct net_bridge *br = to_bridge(d);
39 if (!capable(CAP_NET_ADMIN))
42 val = simple_strtoul(buf, &endp, 0);
46 err = (*set)(br, val);
47 return err ? err : len;
51 static ssize_t show_forward_delay(struct device *d,
52 struct device_attribute *attr, char *buf)
54 struct net_bridge *br = to_bridge(d);
55 return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->forward_delay));
58 static ssize_t store_forward_delay(struct device *d,
59 struct device_attribute *attr,
60 const char *buf, size_t len)
62 return store_bridge_parm(d, buf, len, br_set_forward_delay);
64 static DEVICE_ATTR(forward_delay, S_IRUGO | S_IWUSR,
65 show_forward_delay, store_forward_delay);
67 static ssize_t show_hello_time(struct device *d, struct device_attribute *attr,
70 return sprintf(buf, "%lu\n",
71 jiffies_to_clock_t(to_bridge(d)->hello_time));
74 static ssize_t store_hello_time(struct device *d,
75 struct device_attribute *attr, const char *buf,
78 return store_bridge_parm(d, buf, len, br_set_hello_time);
80 static DEVICE_ATTR(hello_time, S_IRUGO | S_IWUSR, show_hello_time,
83 static ssize_t show_max_age(struct device *d, struct device_attribute *attr,
86 return sprintf(buf, "%lu\n",
87 jiffies_to_clock_t(to_bridge(d)->max_age));
90 static ssize_t store_max_age(struct device *d, struct device_attribute *attr,
91 const char *buf, size_t len)
93 return store_bridge_parm(d, buf, len, br_set_max_age);
95 static DEVICE_ATTR(max_age, S_IRUGO | S_IWUSR, show_max_age, store_max_age);
97 static ssize_t show_ageing_time(struct device *d,
98 struct device_attribute *attr, char *buf)
100 struct net_bridge *br = to_bridge(d);
101 return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->ageing_time));
104 static int set_ageing_time(struct net_bridge *br, unsigned long val)
106 br->ageing_time = clock_t_to_jiffies(val);
110 static ssize_t store_ageing_time(struct device *d,
111 struct device_attribute *attr,
112 const char *buf, size_t len)
114 return store_bridge_parm(d, buf, len, set_ageing_time);
116 static DEVICE_ATTR(ageing_time, S_IRUGO | S_IWUSR, show_ageing_time,
119 static ssize_t show_stp_state(struct device *d,
120 struct device_attribute *attr, char *buf)
122 struct net_bridge *br = to_bridge(d);
123 return sprintf(buf, "%d\n", br->stp_enabled);
127 static ssize_t store_stp_state(struct device *d,
128 struct device_attribute *attr, const char *buf,
131 struct net_bridge *br = to_bridge(d);
135 if (!capable(CAP_NET_ADMIN))
138 val = simple_strtoul(buf, &endp, 0);
143 return restart_syscall();
144 br_stp_set_enabled(br, val);
149 static DEVICE_ATTR(stp_state, S_IRUGO | S_IWUSR, show_stp_state,
152 static ssize_t show_group_fwd_mask(struct device *d,
153 struct device_attribute *attr, char *buf)
155 struct net_bridge *br = to_bridge(d);
156 return sprintf(buf, "%#x\n", br->group_fwd_mask);
160 static ssize_t store_group_fwd_mask(struct device *d,
161 struct device_attribute *attr, const char *buf,
164 struct net_bridge *br = to_bridge(d);
168 if (!capable(CAP_NET_ADMIN))
171 val = simple_strtoul(buf, &endp, 0);
175 if (val & BR_GROUPFWD_RESTRICTED)
178 br->group_fwd_mask = val;
182 static DEVICE_ATTR(group_fwd_mask, S_IRUGO | S_IWUSR, show_group_fwd_mask,
183 store_group_fwd_mask);
185 static ssize_t show_priority(struct device *d, struct device_attribute *attr,
188 struct net_bridge *br = to_bridge(d);
189 return sprintf(buf, "%d\n",
190 (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1]);
193 static int set_priority(struct net_bridge *br, unsigned long val)
195 br_stp_set_bridge_priority(br, (u16) val);
199 static ssize_t store_priority(struct device *d, struct device_attribute *attr,
200 const char *buf, size_t len)
202 return store_bridge_parm(d, buf, len, set_priority);
204 static DEVICE_ATTR(priority, S_IRUGO | S_IWUSR, show_priority, store_priority);
206 static ssize_t show_root_id(struct device *d, struct device_attribute *attr,
209 return br_show_bridge_id(buf, &to_bridge(d)->designated_root);
211 static DEVICE_ATTR(root_id, S_IRUGO, show_root_id, NULL);
213 static ssize_t show_bridge_id(struct device *d, struct device_attribute *attr,
216 return br_show_bridge_id(buf, &to_bridge(d)->bridge_id);
218 static DEVICE_ATTR(bridge_id, S_IRUGO, show_bridge_id, NULL);
220 static ssize_t show_root_port(struct device *d, struct device_attribute *attr,
223 return sprintf(buf, "%d\n", to_bridge(d)->root_port);
225 static DEVICE_ATTR(root_port, S_IRUGO, show_root_port, NULL);
227 static ssize_t show_root_path_cost(struct device *d,
228 struct device_attribute *attr, char *buf)
230 return sprintf(buf, "%d\n", to_bridge(d)->root_path_cost);
232 static DEVICE_ATTR(root_path_cost, S_IRUGO, show_root_path_cost, NULL);
234 static ssize_t show_topology_change(struct device *d,
235 struct device_attribute *attr, char *buf)
237 return sprintf(buf, "%d\n", to_bridge(d)->topology_change);
239 static DEVICE_ATTR(topology_change, S_IRUGO, show_topology_change, NULL);
241 static ssize_t show_topology_change_detected(struct device *d,
242 struct device_attribute *attr,
245 struct net_bridge *br = to_bridge(d);
246 return sprintf(buf, "%d\n", br->topology_change_detected);
248 static DEVICE_ATTR(topology_change_detected, S_IRUGO,
249 show_topology_change_detected, NULL);
251 static ssize_t show_hello_timer(struct device *d,
252 struct device_attribute *attr, char *buf)
254 struct net_bridge *br = to_bridge(d);
255 return sprintf(buf, "%ld\n", br_timer_value(&br->hello_timer));
257 static DEVICE_ATTR(hello_timer, S_IRUGO, show_hello_timer, NULL);
259 static ssize_t show_tcn_timer(struct device *d, struct device_attribute *attr,
262 struct net_bridge *br = to_bridge(d);
263 return sprintf(buf, "%ld\n", br_timer_value(&br->tcn_timer));
265 static DEVICE_ATTR(tcn_timer, S_IRUGO, show_tcn_timer, NULL);
267 static ssize_t show_topology_change_timer(struct device *d,
268 struct device_attribute *attr,
271 struct net_bridge *br = to_bridge(d);
272 return sprintf(buf, "%ld\n", br_timer_value(&br->topology_change_timer));
274 static DEVICE_ATTR(topology_change_timer, S_IRUGO, show_topology_change_timer,
277 static ssize_t show_gc_timer(struct device *d, struct device_attribute *attr,
280 struct net_bridge *br = to_bridge(d);
281 return sprintf(buf, "%ld\n", br_timer_value(&br->gc_timer));
283 static DEVICE_ATTR(gc_timer, S_IRUGO, show_gc_timer, NULL);
285 static ssize_t show_group_addr(struct device *d,
286 struct device_attribute *attr, char *buf)
288 struct net_bridge *br = to_bridge(d);
289 return sprintf(buf, "%x:%x:%x:%x:%x:%x\n",
290 br->group_addr[0], br->group_addr[1],
291 br->group_addr[2], br->group_addr[3],
292 br->group_addr[4], br->group_addr[5]);
295 static ssize_t store_group_addr(struct device *d,
296 struct device_attribute *attr,
297 const char *buf, size_t len)
299 struct net_bridge *br = to_bridge(d);
300 unsigned int new_addr[6];
303 if (!capable(CAP_NET_ADMIN))
306 if (sscanf(buf, "%x:%x:%x:%x:%x:%x",
307 &new_addr[0], &new_addr[1], &new_addr[2],
308 &new_addr[3], &new_addr[4], &new_addr[5]) != 6)
311 /* Must be 01:80:c2:00:00:0X */
312 for (i = 0; i < 5; i++)
313 if (new_addr[i] != br_group_address[i])
316 if (new_addr[5] & ~0xf)
319 if (new_addr[5] == 1 || /* 802.3x Pause address */
320 new_addr[5] == 2 || /* 802.3ad Slow protocols */
321 new_addr[5] == 3) /* 802.1X PAE address */
324 spin_lock_bh(&br->lock);
325 for (i = 0; i < 6; i++)
326 br->group_addr[i] = new_addr[i];
327 spin_unlock_bh(&br->lock);
331 static DEVICE_ATTR(group_addr, S_IRUGO | S_IWUSR,
332 show_group_addr, store_group_addr);
334 static ssize_t store_flush(struct device *d,
335 struct device_attribute *attr,
336 const char *buf, size_t len)
338 struct net_bridge *br = to_bridge(d);
340 if (!capable(CAP_NET_ADMIN))
346 static DEVICE_ATTR(flush, S_IWUSR, NULL, store_flush);
348 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
349 static ssize_t show_multicast_router(struct device *d,
350 struct device_attribute *attr, char *buf)
352 struct net_bridge *br = to_bridge(d);
353 return sprintf(buf, "%d\n", br->multicast_router);
356 static ssize_t store_multicast_router(struct device *d,
357 struct device_attribute *attr,
358 const char *buf, size_t len)
360 return store_bridge_parm(d, buf, len, br_multicast_set_router);
362 static DEVICE_ATTR(multicast_router, S_IRUGO | S_IWUSR, show_multicast_router,
363 store_multicast_router);
365 static ssize_t show_multicast_snooping(struct device *d,
366 struct device_attribute *attr,
369 struct net_bridge *br = to_bridge(d);
370 return sprintf(buf, "%d\n", !br->multicast_disabled);
373 static ssize_t store_multicast_snooping(struct device *d,
374 struct device_attribute *attr,
375 const char *buf, size_t len)
377 return store_bridge_parm(d, buf, len, br_multicast_toggle);
379 static DEVICE_ATTR(multicast_snooping, S_IRUGO | S_IWUSR,
380 show_multicast_snooping, store_multicast_snooping);
382 static ssize_t show_multicast_querier(struct device *d,
383 struct device_attribute *attr,
386 struct net_bridge *br = to_bridge(d);
387 return sprintf(buf, "%d\n", br->multicast_querier);
390 static ssize_t store_multicast_querier(struct device *d,
391 struct device_attribute *attr,
392 const char *buf, size_t len)
394 return store_bridge_parm(d, buf, len, br_multicast_set_querier);
396 static DEVICE_ATTR(multicast_querier, S_IRUGO | S_IWUSR,
397 show_multicast_querier, store_multicast_querier);
399 static ssize_t show_hash_elasticity(struct device *d,
400 struct device_attribute *attr, char *buf)
402 struct net_bridge *br = to_bridge(d);
403 return sprintf(buf, "%u\n", br->hash_elasticity);
406 static int set_elasticity(struct net_bridge *br, unsigned long val)
408 br->hash_elasticity = val;
412 static ssize_t store_hash_elasticity(struct device *d,
413 struct device_attribute *attr,
414 const char *buf, size_t len)
416 return store_bridge_parm(d, buf, len, set_elasticity);
418 static DEVICE_ATTR(hash_elasticity, S_IRUGO | S_IWUSR, show_hash_elasticity,
419 store_hash_elasticity);
421 static ssize_t show_hash_max(struct device *d, struct device_attribute *attr,
424 struct net_bridge *br = to_bridge(d);
425 return sprintf(buf, "%u\n", br->hash_max);
428 static ssize_t store_hash_max(struct device *d, struct device_attribute *attr,
429 const char *buf, size_t len)
431 return store_bridge_parm(d, buf, len, br_multicast_set_hash_max);
433 static DEVICE_ATTR(hash_max, S_IRUGO | S_IWUSR, show_hash_max,
436 static ssize_t show_multicast_last_member_count(struct device *d,
437 struct device_attribute *attr,
440 struct net_bridge *br = to_bridge(d);
441 return sprintf(buf, "%u\n", br->multicast_last_member_count);
444 static int set_last_member_count(struct net_bridge *br, unsigned long val)
446 br->multicast_last_member_count = val;
450 static ssize_t store_multicast_last_member_count(struct device *d,
451 struct device_attribute *attr,
452 const char *buf, size_t len)
454 return store_bridge_parm(d, buf, len, set_last_member_count);
456 static DEVICE_ATTR(multicast_last_member_count, S_IRUGO | S_IWUSR,
457 show_multicast_last_member_count,
458 store_multicast_last_member_count);
460 static ssize_t show_multicast_startup_query_count(
461 struct device *d, struct device_attribute *attr, char *buf)
463 struct net_bridge *br = to_bridge(d);
464 return sprintf(buf, "%u\n", br->multicast_startup_query_count);
467 static int set_startup_query_count(struct net_bridge *br, unsigned long val)
469 br->multicast_startup_query_count = val;
473 static ssize_t store_multicast_startup_query_count(
474 struct device *d, struct device_attribute *attr, const char *buf,
477 return store_bridge_parm(d, buf, len, set_startup_query_count);
479 static DEVICE_ATTR(multicast_startup_query_count, S_IRUGO | S_IWUSR,
480 show_multicast_startup_query_count,
481 store_multicast_startup_query_count);
483 static ssize_t show_multicast_last_member_interval(
484 struct device *d, struct device_attribute *attr, char *buf)
486 struct net_bridge *br = to_bridge(d);
487 return sprintf(buf, "%lu\n",
488 jiffies_to_clock_t(br->multicast_last_member_interval));
491 static int set_last_member_interval(struct net_bridge *br, unsigned long val)
493 br->multicast_last_member_interval = clock_t_to_jiffies(val);
497 static ssize_t store_multicast_last_member_interval(
498 struct device *d, struct device_attribute *attr, const char *buf,
501 return store_bridge_parm(d, buf, len, set_last_member_interval);
503 static DEVICE_ATTR(multicast_last_member_interval, S_IRUGO | S_IWUSR,
504 show_multicast_last_member_interval,
505 store_multicast_last_member_interval);
507 static ssize_t show_multicast_membership_interval(
508 struct device *d, struct device_attribute *attr, char *buf)
510 struct net_bridge *br = to_bridge(d);
511 return sprintf(buf, "%lu\n",
512 jiffies_to_clock_t(br->multicast_membership_interval));
515 static int set_membership_interval(struct net_bridge *br, unsigned long val)
517 br->multicast_membership_interval = clock_t_to_jiffies(val);
521 static ssize_t store_multicast_membership_interval(
522 struct device *d, struct device_attribute *attr, const char *buf,
525 return store_bridge_parm(d, buf, len, set_membership_interval);
527 static DEVICE_ATTR(multicast_membership_interval, S_IRUGO | S_IWUSR,
528 show_multicast_membership_interval,
529 store_multicast_membership_interval);
531 static ssize_t show_multicast_querier_interval(struct device *d,
532 struct device_attribute *attr,
535 struct net_bridge *br = to_bridge(d);
536 return sprintf(buf, "%lu\n",
537 jiffies_to_clock_t(br->multicast_querier_interval));
540 static int set_querier_interval(struct net_bridge *br, unsigned long val)
542 br->multicast_querier_interval = clock_t_to_jiffies(val);
546 static ssize_t store_multicast_querier_interval(struct device *d,
547 struct device_attribute *attr,
548 const char *buf, size_t len)
550 return store_bridge_parm(d, buf, len, set_querier_interval);
552 static DEVICE_ATTR(multicast_querier_interval, S_IRUGO | S_IWUSR,
553 show_multicast_querier_interval,
554 store_multicast_querier_interval);
556 static ssize_t show_multicast_query_interval(struct device *d,
557 struct device_attribute *attr,
560 struct net_bridge *br = to_bridge(d);
561 return sprintf(buf, "%lu\n",
562 jiffies_to_clock_t(br->multicast_query_interval));
565 static int set_query_interval(struct net_bridge *br, unsigned long val)
567 br->multicast_query_interval = clock_t_to_jiffies(val);
571 static ssize_t store_multicast_query_interval(struct device *d,
572 struct device_attribute *attr,
573 const char *buf, size_t len)
575 return store_bridge_parm(d, buf, len, set_query_interval);
577 static DEVICE_ATTR(multicast_query_interval, S_IRUGO | S_IWUSR,
578 show_multicast_query_interval,
579 store_multicast_query_interval);
581 static ssize_t show_multicast_query_response_interval(
582 struct device *d, struct device_attribute *attr, char *buf)
584 struct net_bridge *br = to_bridge(d);
587 jiffies_to_clock_t(br->multicast_query_response_interval));
590 static int set_query_response_interval(struct net_bridge *br, unsigned long val)
592 br->multicast_query_response_interval = clock_t_to_jiffies(val);
596 static ssize_t store_multicast_query_response_interval(
597 struct device *d, struct device_attribute *attr, const char *buf,
600 return store_bridge_parm(d, buf, len, set_query_response_interval);
602 static DEVICE_ATTR(multicast_query_response_interval, S_IRUGO | S_IWUSR,
603 show_multicast_query_response_interval,
604 store_multicast_query_response_interval);
606 static ssize_t show_multicast_startup_query_interval(
607 struct device *d, struct device_attribute *attr, char *buf)
609 struct net_bridge *br = to_bridge(d);
612 jiffies_to_clock_t(br->multicast_startup_query_interval));
615 static int set_startup_query_interval(struct net_bridge *br, unsigned long val)
617 br->multicast_startup_query_interval = clock_t_to_jiffies(val);
621 static ssize_t store_multicast_startup_query_interval(
622 struct device *d, struct device_attribute *attr, const char *buf,
625 return store_bridge_parm(d, buf, len, set_startup_query_interval);
627 static DEVICE_ATTR(multicast_startup_query_interval, S_IRUGO | S_IWUSR,
628 show_multicast_startup_query_interval,
629 store_multicast_startup_query_interval);
631 #ifdef CONFIG_BRIDGE_NETFILTER
632 static ssize_t show_nf_call_iptables(
633 struct device *d, struct device_attribute *attr, char *buf)
635 struct net_bridge *br = to_bridge(d);
636 return sprintf(buf, "%u\n", br->nf_call_iptables);
639 static int set_nf_call_iptables(struct net_bridge *br, unsigned long val)
641 br->nf_call_iptables = val ? true : false;
645 static ssize_t store_nf_call_iptables(
646 struct device *d, struct device_attribute *attr, const char *buf,
649 return store_bridge_parm(d, buf, len, set_nf_call_iptables);
651 static DEVICE_ATTR(nf_call_iptables, S_IRUGO | S_IWUSR,
652 show_nf_call_iptables, store_nf_call_iptables);
654 static ssize_t show_nf_call_ip6tables(
655 struct device *d, struct device_attribute *attr, char *buf)
657 struct net_bridge *br = to_bridge(d);
658 return sprintf(buf, "%u\n", br->nf_call_ip6tables);
661 static int set_nf_call_ip6tables(struct net_bridge *br, unsigned long val)
663 br->nf_call_ip6tables = val ? true : false;
667 static ssize_t store_nf_call_ip6tables(
668 struct device *d, struct device_attribute *attr, const char *buf,
671 return store_bridge_parm(d, buf, len, set_nf_call_ip6tables);
673 static DEVICE_ATTR(nf_call_ip6tables, S_IRUGO | S_IWUSR,
674 show_nf_call_ip6tables, store_nf_call_ip6tables);
676 static ssize_t show_nf_call_arptables(
677 struct device *d, struct device_attribute *attr, char *buf)
679 struct net_bridge *br = to_bridge(d);
680 return sprintf(buf, "%u\n", br->nf_call_arptables);
683 static int set_nf_call_arptables(struct net_bridge *br, unsigned long val)
685 br->nf_call_arptables = val ? true : false;
689 static ssize_t store_nf_call_arptables(
690 struct device *d, struct device_attribute *attr, const char *buf,
693 return store_bridge_parm(d, buf, len, set_nf_call_arptables);
695 static DEVICE_ATTR(nf_call_arptables, S_IRUGO | S_IWUSR,
696 show_nf_call_arptables, store_nf_call_arptables);
699 static struct attribute *bridge_attrs[] = {
700 &dev_attr_forward_delay.attr,
701 &dev_attr_hello_time.attr,
702 &dev_attr_max_age.attr,
703 &dev_attr_ageing_time.attr,
704 &dev_attr_stp_state.attr,
705 &dev_attr_group_fwd_mask.attr,
706 &dev_attr_priority.attr,
707 &dev_attr_bridge_id.attr,
708 &dev_attr_root_id.attr,
709 &dev_attr_root_path_cost.attr,
710 &dev_attr_root_port.attr,
711 &dev_attr_topology_change.attr,
712 &dev_attr_topology_change_detected.attr,
713 &dev_attr_hello_timer.attr,
714 &dev_attr_tcn_timer.attr,
715 &dev_attr_topology_change_timer.attr,
716 &dev_attr_gc_timer.attr,
717 &dev_attr_group_addr.attr,
718 &dev_attr_flush.attr,
719 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
720 &dev_attr_multicast_router.attr,
721 &dev_attr_multicast_snooping.attr,
722 &dev_attr_multicast_querier.attr,
723 &dev_attr_hash_elasticity.attr,
724 &dev_attr_hash_max.attr,
725 &dev_attr_multicast_last_member_count.attr,
726 &dev_attr_multicast_startup_query_count.attr,
727 &dev_attr_multicast_last_member_interval.attr,
728 &dev_attr_multicast_membership_interval.attr,
729 &dev_attr_multicast_querier_interval.attr,
730 &dev_attr_multicast_query_interval.attr,
731 &dev_attr_multicast_query_response_interval.attr,
732 &dev_attr_multicast_startup_query_interval.attr,
734 #ifdef CONFIG_BRIDGE_NETFILTER
735 &dev_attr_nf_call_iptables.attr,
736 &dev_attr_nf_call_ip6tables.attr,
737 &dev_attr_nf_call_arptables.attr,
742 static struct attribute_group bridge_group = {
743 .name = SYSFS_BRIDGE_ATTR,
744 .attrs = bridge_attrs,
748 * Export the forwarding information table as a binary file
749 * The records are struct __fdb_entry.
751 * Returns the number of bytes read.
753 static ssize_t brforward_read(struct file *filp, struct kobject *kobj,
754 struct bin_attribute *bin_attr,
755 char *buf, loff_t off, size_t count)
757 struct device *dev = to_dev(kobj);
758 struct net_bridge *br = to_bridge(dev);
761 /* must read whole records */
762 if (off % sizeof(struct __fdb_entry) != 0)
765 n = br_fdb_fillbuf(br, buf,
766 count / sizeof(struct __fdb_entry),
767 off / sizeof(struct __fdb_entry));
770 n *= sizeof(struct __fdb_entry);
775 static struct bin_attribute bridge_forward = {
776 .attr = { .name = SYSFS_BRIDGE_FDB,
778 .read = brforward_read,
782 * Add entries in sysfs onto the existing network class device
784 * Adds a attribute group "bridge" containing tuning parameters.
785 * Binary attribute containing the forward table
786 * Sub directory to hold links to interfaces.
788 * Note: the ifobj exists only to be a subdirectory
789 * to hold links. The ifobj exists in same data structure
790 * as it's parent the bridge so reference counting works.
792 int br_sysfs_addbr(struct net_device *dev)
794 struct kobject *brobj = &dev->dev.kobj;
795 struct net_bridge *br = netdev_priv(dev);
798 err = sysfs_create_group(brobj, &bridge_group);
800 pr_info("%s: can't create group %s/%s\n",
801 __func__, dev->name, bridge_group.name);
805 err = sysfs_create_bin_file(brobj, &bridge_forward);
807 pr_info("%s: can't create attribute file %s/%s\n",
808 __func__, dev->name, bridge_forward.attr.name);
812 br->ifobj = kobject_create_and_add(SYSFS_BRIDGE_PORT_SUBDIR, brobj);
814 pr_info("%s: can't add kobject (directory) %s/%s\n",
815 __func__, dev->name, SYSFS_BRIDGE_PORT_SUBDIR);
820 sysfs_remove_bin_file(&dev->dev.kobj, &bridge_forward);
822 sysfs_remove_group(&dev->dev.kobj, &bridge_group);
828 void br_sysfs_delbr(struct net_device *dev)
830 struct kobject *kobj = &dev->dev.kobj;
831 struct net_bridge *br = netdev_priv(dev);
833 kobject_put(br->ifobj);
834 sysfs_remove_bin_file(kobj, &bridge_forward);
835 sysfs_remove_group(kobj, &bridge_group);