1 // SPDX-License-Identifier: GPL-2.0-or-later
31 static ssize_t store_bridge_parm(struct device *d,  in store_bridge_parm()  argument
36 	struct net_bridge *br = to_bridge(d);  in store_bridge_parm()
41 	if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN))  in store_bridge_parm()
42 		return -EPERM;  in store_bridge_parm()
53 		netdev_state_change(br->dev);  in store_bridge_parm()
66 static ssize_t forward_delay_show(struct device *d,  in forward_delay_show()  argument
69 	struct net_bridge *br = to_bridge(d);  in forward_delay_show()
70 	return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->forward_delay));  in forward_delay_show()
79 static ssize_t forward_delay_store(struct device *d,  in forward_delay_store()  argument
83 	return store_bridge_parm(d, buf, len, set_forward_delay);  in forward_delay_store()
87 static ssize_t hello_time_show(struct device *d, struct device_attribute *attr,  in hello_time_show()  argument
91 		       jiffies_to_clock_t(to_bridge(d)->hello_time));  in hello_time_show()
100 static ssize_t hello_time_store(struct device *d,  in hello_time_store()  argument
104 	return store_bridge_parm(d, buf, len, set_hello_time);  in hello_time_store()
108 static ssize_t max_age_show(struct device *d, struct device_attribute *attr,  in max_age_show()  argument
112 		       jiffies_to_clock_t(to_bridge(d)->max_age));  in max_age_show()
121 static ssize_t max_age_store(struct device *d, struct device_attribute *attr,  in max_age_store()  argument
124 	return store_bridge_parm(d, buf, len, set_max_age);  in max_age_store()
128 static ssize_t ageing_time_show(struct device *d,  in ageing_time_show()  argument
131 	struct net_bridge *br = to_bridge(d);  in ageing_time_show()
132 	return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->ageing_time));  in ageing_time_show()
141 static ssize_t ageing_time_store(struct device *d,  in ageing_time_store()  argument
145 	return store_bridge_parm(d, buf, len, set_ageing_time);  in ageing_time_store()
149 static ssize_t stp_state_show(struct device *d,  in stp_state_show()  argument
152 	struct net_bridge *br = to_bridge(d);  in stp_state_show()
153 	return sprintf(buf, "%d\n", br->stp_enabled);  in stp_state_show()
163 static ssize_t stp_state_store(struct device *d,  in stp_state_store()  argument
167 	return store_bridge_parm(d, buf, len, set_stp_state);  in stp_state_store()
171 static ssize_t group_fwd_mask_show(struct device *d,  in group_fwd_mask_show()  argument
175 	struct net_bridge *br = to_bridge(d);  in group_fwd_mask_show()
176 	return sprintf(buf, "%#x\n", br->group_fwd_mask);  in group_fwd_mask_show()
183 		return -EINVAL;  in set_group_fwd_mask()
185 	br->group_fwd_mask = val;  in set_group_fwd_mask()
190 static ssize_t group_fwd_mask_store(struct device *d,  in group_fwd_mask_store()  argument
195 	return store_bridge_parm(d, buf, len, set_group_fwd_mask);  in group_fwd_mask_store()
199 static ssize_t priority_show(struct device *d, struct device_attribute *attr,  in priority_show()  argument
202 	struct net_bridge *br = to_bridge(d);  in priority_show()
203 	return sprintf(buf, "%d\n",  in priority_show()
204 		       (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1]);  in priority_show()
214 static ssize_t priority_store(struct device *d, struct device_attribute *attr,  in priority_store()  argument
217 	return store_bridge_parm(d, buf, len, set_priority);  in priority_store()
221 static ssize_t root_id_show(struct device *d, struct device_attribute *attr,  in root_id_show()  argument
224 	return br_show_bridge_id(buf, &to_bridge(d)->designated_root);  in root_id_show()
228 static ssize_t bridge_id_show(struct device *d, struct device_attribute *attr,  in bridge_id_show()  argument
231 	return br_show_bridge_id(buf, &to_bridge(d)->bridge_id);  in bridge_id_show()
235 static ssize_t root_port_show(struct device *d, struct device_attribute *attr,  in root_port_show()  argument
238 	return sprintf(buf, "%d\n", to_bridge(d)->root_port);  in root_port_show()
242 static ssize_t root_path_cost_show(struct device *d,  in root_path_cost_show()  argument
245 	return sprintf(buf, "%d\n", to_bridge(d)->root_path_cost);  in root_path_cost_show()
249 static ssize_t topology_change_show(struct device *d,  in topology_change_show()  argument
252 	return sprintf(buf, "%d\n", to_bridge(d)->topology_change);  in topology_change_show()
256 static ssize_t topology_change_detected_show(struct device *d,  in topology_change_detected_show()  argument
260 	struct net_bridge *br = to_bridge(d);  in topology_change_detected_show()
261 	return sprintf(buf, "%d\n", br->topology_change_detected);  in topology_change_detected_show()
265 static ssize_t hello_timer_show(struct device *d,  in hello_timer_show()  argument
268 	struct net_bridge *br = to_bridge(d);  in hello_timer_show()
269 	return sprintf(buf, "%ld\n", br_timer_value(&br->hello_timer));  in hello_timer_show()
273 static ssize_t tcn_timer_show(struct device *d, struct device_attribute *attr,  in tcn_timer_show()  argument
276 	struct net_bridge *br = to_bridge(d);  in tcn_timer_show()
277 	return sprintf(buf, "%ld\n", br_timer_value(&br->tcn_timer));  in tcn_timer_show()
281 static ssize_t topology_change_timer_show(struct device *d,  in topology_change_timer_show()  argument
285 	struct net_bridge *br = to_bridge(d);  in topology_change_timer_show()
286 	return sprintf(buf, "%ld\n", br_timer_value(&br->topology_change_timer));  in topology_change_timer_show()
290 static ssize_t gc_timer_show(struct device *d, struct device_attribute *attr,  in gc_timer_show()  argument
293 	struct net_bridge *br = to_bridge(d);  in gc_timer_show()
294 	return sprintf(buf, "%ld\n", br_timer_value(&br->gc_work.timer));  in gc_timer_show()
298 static ssize_t group_addr_show(struct device *d,  in group_addr_show()  argument
301 	struct net_bridge *br = to_bridge(d);  in group_addr_show()
302 	return sprintf(buf, "%pM\n", br->group_addr);  in group_addr_show()
305 static ssize_t group_addr_store(struct device *d,  in group_addr_store()  argument
309 	struct net_bridge *br = to_bridge(d);  in group_addr_store()
312 	if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN))  in group_addr_store()
313 		return -EPERM;  in group_addr_store()
316 		return -EINVAL;  in group_addr_store()
319 		return -EINVAL;  in group_addr_store()
324 		return -EINVAL;  in group_addr_store()
329 	spin_lock_bh(&br->lock);  in group_addr_store()
330 	ether_addr_copy(br->group_addr, new_addr);  in group_addr_store()
331 	spin_unlock_bh(&br->lock);  in group_addr_store()
335 	netdev_state_change(br->dev);  in group_addr_store()
355 static ssize_t flush_store(struct device *d,  in flush_store()  argument
359 	return store_bridge_parm(d, buf, len, set_flush);  in flush_store()
363 static ssize_t no_linklocal_learn_show(struct device *d,  in no_linklocal_learn_show()  argument
367 	struct net_bridge *br = to_bridge(d);  in no_linklocal_learn_show()
368 	return sprintf(buf, "%d\n", br_boolopt_get(br, BR_BOOLOPT_NO_LL_LEARN));  in no_linklocal_learn_show()
377 static ssize_t no_linklocal_learn_store(struct device *d,  in no_linklocal_learn_store()  argument
381 	return store_bridge_parm(d, buf, len, set_no_linklocal_learn);  in no_linklocal_learn_store()
386 static ssize_t multicast_router_show(struct device *d,  in multicast_router_show()  argument
389 	struct net_bridge *br = to_bridge(d);  in multicast_router_show()
390 	return sprintf(buf, "%d\n", br->multicast_ctx.multicast_router);  in multicast_router_show()
396 	return br_multicast_set_router(&br->multicast_ctx, val);  in set_multicast_router()
399 static ssize_t multicast_router_store(struct device *d,  in multicast_router_store()  argument
403 	return store_bridge_parm(d, buf, len, set_multicast_router);  in multicast_router_store()
407 static ssize_t multicast_snooping_show(struct device *d,  in multicast_snooping_show()  argument
411 	struct net_bridge *br = to_bridge(d);  in multicast_snooping_show()
412 	return sprintf(buf, "%d\n", br_opt_get(br, BROPT_MULTICAST_ENABLED));  in multicast_snooping_show()
415 static ssize_t multicast_snooping_store(struct device *d,  in multicast_snooping_store()  argument
419 	return store_bridge_parm(d, buf, len, br_multicast_toggle);  in multicast_snooping_store()
423 static ssize_t multicast_query_use_ifaddr_show(struct device *d,  in multicast_query_use_ifaddr_show()  argument
427 	struct net_bridge *br = to_bridge(d);  in multicast_query_use_ifaddr_show()
428 	return sprintf(buf, "%d\n",  in multicast_query_use_ifaddr_show()
440 multicast_query_use_ifaddr_store(struct device *d,  in multicast_query_use_ifaddr_store()  argument
444 	return store_bridge_parm(d, buf, len, set_query_use_ifaddr);  in multicast_query_use_ifaddr_store()
448 static ssize_t multicast_querier_show(struct device *d,  in multicast_querier_show()  argument
452 	struct net_bridge *br = to_bridge(d);  in multicast_querier_show()
453 	return sprintf(buf, "%d\n", br->multicast_ctx.multicast_querier);  in multicast_querier_show()
459 	return br_multicast_set_querier(&br->multicast_ctx, val);  in set_multicast_querier()
462 static ssize_t multicast_querier_store(struct device *d,  in multicast_querier_store()  argument
466 	return store_bridge_parm(d, buf, len, set_multicast_querier);  in multicast_querier_store()
470 static ssize_t hash_elasticity_show(struct device *d,  in hash_elasticity_show()  argument
485 static ssize_t hash_elasticity_store(struct device *d,  in hash_elasticity_store()  argument
489 	return store_bridge_parm(d, buf, len, set_elasticity);  in hash_elasticity_store()
493 static ssize_t hash_max_show(struct device *d, struct device_attribute *attr,  in hash_max_show()  argument
496 	struct net_bridge *br = to_bridge(d);  in hash_max_show()
497 	return sprintf(buf, "%u\n", br->hash_max);  in hash_max_show()
503 	br->hash_max = val;  in set_hash_max()
507 static ssize_t hash_max_store(struct device *d, struct device_attribute *attr,  in hash_max_store()  argument
510 	return store_bridge_parm(d, buf, len, set_hash_max);  in hash_max_store()
514 static ssize_t multicast_igmp_version_show(struct device *d,  in multicast_igmp_version_show()  argument
518 	struct net_bridge *br = to_bridge(d);  in multicast_igmp_version_show()
520 	return sprintf(buf, "%u\n", br->multicast_ctx.multicast_igmp_version);  in multicast_igmp_version_show()
526 	return br_multicast_set_igmp_version(&br->multicast_ctx, val);  in set_multicast_igmp_version()
529 static ssize_t multicast_igmp_version_store(struct device *d,  in multicast_igmp_version_store()  argument
533 	return store_bridge_parm(d, buf, len, set_multicast_igmp_version);  in multicast_igmp_version_store()
537 static ssize_t multicast_last_member_count_show(struct device *d,  in multicast_last_member_count_show()  argument
541 	struct net_bridge *br = to_bridge(d);  in multicast_last_member_count_show()
542 	return sprintf(buf, "%u\n", br->multicast_ctx.multicast_last_member_count);  in multicast_last_member_count_show()
548 	br->multicast_ctx.multicast_last_member_count = val;  in set_last_member_count()
552 static ssize_t multicast_last_member_count_store(struct device *d,  in multicast_last_member_count_store()  argument
556 	return store_bridge_parm(d, buf, len, set_last_member_count);  in multicast_last_member_count_store()
561 	struct device *d, struct device_attribute *attr, char *buf)  in multicast_startup_query_count_show()  argument
563 	struct net_bridge *br = to_bridge(d);  in multicast_startup_query_count_show()
564 	return sprintf(buf, "%u\n", br->multicast_ctx.multicast_startup_query_count);  in multicast_startup_query_count_show()
570 	br->multicast_ctx.multicast_startup_query_count = val;  in set_startup_query_count()
575 	struct device *d, struct device_attribute *attr, const char *buf,  in multicast_startup_query_count_store()  argument
578 	return store_bridge_parm(d, buf, len, set_startup_query_count);  in multicast_startup_query_count_store()
583 	struct device *d, struct device_attribute *attr, char *buf)  in multicast_last_member_interval_show()  argument
585 	struct net_bridge *br = to_bridge(d);  in multicast_last_member_interval_show()
587 		       jiffies_to_clock_t(br->multicast_ctx.multicast_last_member_interval));  in multicast_last_member_interval_show()
593 	br->multicast_ctx.multicast_last_member_interval = clock_t_to_jiffies(val);  in set_last_member_interval()
598 	struct device *d, struct device_attribute *attr, const char *buf,  in multicast_last_member_interval_store()  argument
601 	return store_bridge_parm(d, buf, len, set_last_member_interval);  in multicast_last_member_interval_store()
606 	struct device *d, struct device_attribute *attr, char *buf)  in multicast_membership_interval_show()  argument
608 	struct net_bridge *br = to_bridge(d);  in multicast_membership_interval_show()
610 		       jiffies_to_clock_t(br->multicast_ctx.multicast_membership_interval));  in multicast_membership_interval_show()
616 	br->multicast_ctx.multicast_membership_interval = clock_t_to_jiffies(val);  in set_membership_interval()
621 	struct device *d, struct device_attribute *attr, const char *buf,  in multicast_membership_interval_store()  argument
624 	return store_bridge_parm(d, buf, len, set_membership_interval);  in multicast_membership_interval_store()
628 static ssize_t multicast_querier_interval_show(struct device *d,  in multicast_querier_interval_show()  argument
632 	struct net_bridge *br = to_bridge(d);  in multicast_querier_interval_show()
634 		       jiffies_to_clock_t(br->multicast_ctx.multicast_querier_interval));  in multicast_querier_interval_show()
640 	br->multicast_ctx.multicast_querier_interval = clock_t_to_jiffies(val);  in set_querier_interval()
644 static ssize_t multicast_querier_interval_store(struct device *d,  in multicast_querier_interval_store()  argument
648 	return store_bridge_parm(d, buf, len, set_querier_interval);  in multicast_querier_interval_store()
652 static ssize_t multicast_query_interval_show(struct device *d,  in multicast_query_interval_show()  argument
656 	struct net_bridge *br = to_bridge(d);  in multicast_query_interval_show()
658 		       jiffies_to_clock_t(br->multicast_ctx.multicast_query_interval));  in multicast_query_interval_show()
664 	br_multicast_set_query_intvl(&br->multicast_ctx, val);  in set_query_interval()
668 static ssize_t multicast_query_interval_store(struct device *d,  in multicast_query_interval_store()  argument
672 	return store_bridge_parm(d, buf, len, set_query_interval);  in multicast_query_interval_store()
677 	struct device *d, struct device_attribute *attr, char *buf)  in multicast_query_response_interval_show()  argument
679 	struct net_bridge *br = to_bridge(d);  in multicast_query_response_interval_show()
682 		jiffies_to_clock_t(br->multicast_ctx.multicast_query_response_interval));  in multicast_query_response_interval_show()
688 	br->multicast_ctx.multicast_query_response_interval = clock_t_to_jiffies(val);  in set_query_response_interval()
693 	struct device *d, struct device_attribute *attr, const char *buf,  in multicast_query_response_interval_store()  argument
696 	return store_bridge_parm(d, buf, len, set_query_response_interval);  in multicast_query_response_interval_store()
701 	struct device *d, struct device_attribute *attr, char *buf)  in multicast_startup_query_interval_show()  argument
703 	struct net_bridge *br = to_bridge(d);  in multicast_startup_query_interval_show()
706 		jiffies_to_clock_t(br->multicast_ctx.multicast_startup_query_interval));  in multicast_startup_query_interval_show()
712 	br_multicast_set_startup_query_intvl(&br->multicast_ctx, val);  in set_startup_query_interval()
717 	struct device *d, struct device_attribute *attr, const char *buf,  in multicast_startup_query_interval_store()  argument
720 	return store_bridge_parm(d, buf, len, set_startup_query_interval);  in multicast_startup_query_interval_store()
724 static ssize_t multicast_stats_enabled_show(struct device *d,  in multicast_stats_enabled_show()  argument
728 	struct net_bridge *br = to_bridge(d);  in multicast_stats_enabled_show()
730 	return sprintf(buf, "%d\n",  in multicast_stats_enabled_show()
741 static ssize_t multicast_stats_enabled_store(struct device *d,  in multicast_stats_enabled_store()  argument
746 	return store_bridge_parm(d, buf, len, set_stats_enabled);  in multicast_stats_enabled_store()
751 static ssize_t multicast_mld_version_show(struct device *d,  in multicast_mld_version_show()  argument
755 	struct net_bridge *br = to_bridge(d);  in multicast_mld_version_show()
757 	return sprintf(buf, "%u\n", br->multicast_ctx.multicast_mld_version);  in multicast_mld_version_show()
763 	return br_multicast_set_mld_version(&br->multicast_ctx, val);  in set_multicast_mld_version()
766 static ssize_t multicast_mld_version_store(struct device *d,  in multicast_mld_version_store()  argument
770 	return store_bridge_parm(d, buf, len, set_multicast_mld_version);  in multicast_mld_version_store()
777 	struct device *d, struct device_attribute *attr, char *buf)  in nf_call_iptables_show()  argument
779 	struct net_bridge *br = to_bridge(d);  in nf_call_iptables_show()
791 	struct device *d, struct device_attribute *attr, const char *buf,  in nf_call_iptables_store()  argument
794 	return store_bridge_parm(d, buf, len, set_nf_call_iptables);  in nf_call_iptables_store()
799 	struct device *d, struct device_attribute *attr, char *buf)  in nf_call_ip6tables_show()  argument
801 	struct net_bridge *br = to_bridge(d);  in nf_call_ip6tables_show()
813 	struct device *d, struct device_attribute *attr, const char *buf,  in nf_call_ip6tables_store()  argument
816 	return store_bridge_parm(d, buf, len, set_nf_call_ip6tables);  in nf_call_ip6tables_store()
821 	struct device *d, struct device_attribute *attr, char *buf)  in nf_call_arptables_show()  argument
823 	struct net_bridge *br = to_bridge(d);  in nf_call_arptables_show()
835 	struct device *d, struct device_attribute *attr, const char *buf,  in nf_call_arptables_store()  argument
838 	return store_bridge_parm(d, buf, len, set_nf_call_arptables);  in nf_call_arptables_store()
843 static ssize_t vlan_filtering_show(struct device *d,  in vlan_filtering_show()  argument
847 	struct net_bridge *br = to_bridge(d);  in vlan_filtering_show()
848 	return sprintf(buf, "%d\n", br_opt_get(br, BROPT_VLAN_ENABLED));  in vlan_filtering_show()
851 static ssize_t vlan_filtering_store(struct device *d,  in vlan_filtering_store()  argument
855 	return store_bridge_parm(d, buf, len, br_vlan_filter_toggle);  in vlan_filtering_store()
859 static ssize_t vlan_protocol_show(struct device *d,  in vlan_protocol_show()  argument
863 	struct net_bridge *br = to_bridge(d);  in vlan_protocol_show()
864 	return sprintf(buf, "%#06x\n", ntohs(br->vlan_proto));  in vlan_protocol_show()
867 static ssize_t vlan_protocol_store(struct device *d,  in vlan_protocol_store()  argument
871 	return store_bridge_parm(d, buf, len, br_vlan_set_proto);  in vlan_protocol_store()
875 static ssize_t default_pvid_show(struct device *d,  in default_pvid_show()  argument
879 	struct net_bridge *br = to_bridge(d);  in default_pvid_show()
880 	return sprintf(buf, "%d\n", br->default_pvid);  in default_pvid_show()
883 static ssize_t default_pvid_store(struct device *d,  in default_pvid_store()  argument
887 	return store_bridge_parm(d, buf, len, br_vlan_set_default_pvid);  in default_pvid_store()
891 static ssize_t vlan_stats_enabled_show(struct device *d,  in vlan_stats_enabled_show()  argument
895 	struct net_bridge *br = to_bridge(d);  in vlan_stats_enabled_show()
905 static ssize_t vlan_stats_enabled_store(struct device *d,  in vlan_stats_enabled_store()  argument
909 	return store_bridge_parm(d, buf, len, set_vlan_stats_enabled);  in vlan_stats_enabled_store()
913 static ssize_t vlan_stats_per_port_show(struct device *d,  in vlan_stats_per_port_show()  argument
917 	struct net_bridge *br = to_bridge(d);  in vlan_stats_per_port_show()
927 static ssize_t vlan_stats_per_port_store(struct device *d,  in vlan_stats_per_port_store()  argument
931 	return store_bridge_parm(d, buf, len, set_vlan_stats_per_port);  in vlan_stats_per_port_store()
1014 		return -EINVAL;  in brforward_read()
1045 	struct kobject *brobj = &dev->dev.kobj;  in br_sysfs_addbr()
1052 			__func__, dev->name, bridge_group.name);  in br_sysfs_addbr()
1059 			__func__, dev->name, bridge_forward.attr.name);  in br_sysfs_addbr()
1063 	br->ifobj = kobject_create_and_add(SYSFS_BRIDGE_PORT_SUBDIR, brobj);  in br_sysfs_addbr()
1064 	if (!br->ifobj) {  in br_sysfs_addbr()
1066 			__func__, dev->name, SYSFS_BRIDGE_PORT_SUBDIR);  in br_sysfs_addbr()
1067 		err = -ENOMEM;  in br_sysfs_addbr()
1072 	sysfs_remove_bin_file(&dev->dev.kobj, &bridge_forward);  in br_sysfs_addbr()
1074 	sysfs_remove_group(&dev->dev.kobj, &bridge_group);  in br_sysfs_addbr()
1082 	struct kobject *kobj = &dev->dev.kobj;  in br_sysfs_delbr()
1085 	kobject_put(br->ifobj);  in br_sysfs_delbr()