Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Linux ethernet bridge |
| 3 | * |
| 4 | * Authors: |
| 5 | * Lennert Buytenhek <buytenh@gnu.org> |
| 6 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version |
| 10 | * 2 of the License, or (at your option) any later version. |
| 11 | */ |
| 12 | |
| 13 | #ifndef _BR_PRIVATE_H |
| 14 | #define _BR_PRIVATE_H |
| 15 | |
| 16 | #include <linux/netdevice.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include <linux/if_bridge.h> |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 18 | #include <linux/netpoll.h> |
Eric Dumazet | 406818f | 2010-06-23 13:00:48 -0700 | [diff] [blame] | 19 | #include <linux/u64_stats_sync.h> |
Simon Wunderlich | 4adf0af | 2008-07-30 16:27:55 -0700 | [diff] [blame] | 20 | #include <net/route.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | |
| 22 | #define BR_HASH_BITS 8 |
| 23 | #define BR_HASH_SIZE (1 << BR_HASH_BITS) |
| 24 | |
| 25 | #define BR_HOLD_TIME (1*HZ) |
| 26 | |
| 27 | #define BR_PORT_BITS 10 |
| 28 | #define BR_MAX_PORTS (1<<BR_PORT_BITS) |
| 29 | |
Stephen Hemminger | 9cde070 | 2007-03-21 14:22:44 -0700 | [diff] [blame] | 30 | #define BR_VERSION "2.3" |
| 31 | |
stephen hemminger | 515853c | 2011-10-03 18:14:46 +0000 | [diff] [blame^] | 32 | /* Control of forwarding link local multicast */ |
| 33 | #define BR_GROUPFWD_DEFAULT 0 |
| 34 | /* Don't allow forwarding control protocols like STP and LLDP */ |
| 35 | #define BR_GROUPFWD_RESTRICTED 0x4007u |
| 36 | |
Stephen Hemminger | 9cde070 | 2007-03-21 14:22:44 -0700 | [diff] [blame] | 37 | /* Path to usermode spanning tree program */ |
| 38 | #define BR_STP_PROG "/sbin/bridge-stp" |
Stephen Hemminger | 8cbb512 | 2005-12-21 19:01:30 -0800 | [diff] [blame] | 39 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | typedef struct bridge_id bridge_id; |
| 41 | typedef struct mac_addr mac_addr; |
| 42 | typedef __u16 port_id; |
| 43 | |
| 44 | struct bridge_id |
| 45 | { |
| 46 | unsigned char prio[2]; |
| 47 | unsigned char addr[6]; |
| 48 | }; |
| 49 | |
| 50 | struct mac_addr |
| 51 | { |
| 52 | unsigned char addr[6]; |
| 53 | }; |
| 54 | |
YOSHIFUJI Hideaki | 8ef2a9a | 2010-04-18 12:42:07 +0900 | [diff] [blame] | 55 | struct br_ip |
| 56 | { |
| 57 | union { |
| 58 | __be32 ip4; |
YOSHIFUJI Hideaki | 08b202b | 2010-04-23 01:54:22 +0900 | [diff] [blame] | 59 | #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) |
| 60 | struct in6_addr ip6; |
| 61 | #endif |
YOSHIFUJI Hideaki | 8ef2a9a | 2010-04-18 12:42:07 +0900 | [diff] [blame] | 62 | } u; |
| 63 | __be16 proto; |
| 64 | }; |
| 65 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | struct net_bridge_fdb_entry |
| 67 | { |
| 68 | struct hlist_node hlist; |
| 69 | struct net_bridge_port *dst; |
| 70 | |
| 71 | struct rcu_head rcu; |
stephen hemminger | 7cd8861 | 2011-04-04 14:03:28 +0000 | [diff] [blame] | 72 | unsigned long updated; |
| 73 | unsigned long used; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | mac_addr addr; |
| 75 | unsigned char is_local; |
| 76 | unsigned char is_static; |
| 77 | }; |
| 78 | |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 79 | struct net_bridge_port_group { |
| 80 | struct net_bridge_port *port; |
Eric Dumazet | e805168 | 2010-11-15 06:38:10 +0000 | [diff] [blame] | 81 | struct net_bridge_port_group __rcu *next; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 82 | struct hlist_node mglist; |
| 83 | struct rcu_head rcu; |
| 84 | struct timer_list timer; |
| 85 | struct timer_list query_timer; |
YOSHIFUJI Hideaki | 8ef2a9a | 2010-04-18 12:42:07 +0900 | [diff] [blame] | 86 | struct br_ip addr; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 87 | u32 queries_sent; |
| 88 | }; |
| 89 | |
| 90 | struct net_bridge_mdb_entry |
| 91 | { |
| 92 | struct hlist_node hlist[2]; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 93 | struct net_bridge *br; |
Eric Dumazet | e805168 | 2010-11-15 06:38:10 +0000 | [diff] [blame] | 94 | struct net_bridge_port_group __rcu *ports; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 95 | struct rcu_head rcu; |
| 96 | struct timer_list timer; |
| 97 | struct timer_list query_timer; |
YOSHIFUJI Hideaki | 8ef2a9a | 2010-04-18 12:42:07 +0900 | [diff] [blame] | 98 | struct br_ip addr; |
Herbert Xu | 8a87017 | 2011-02-12 01:05:42 -0800 | [diff] [blame] | 99 | bool mglist; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 100 | u32 queries_sent; |
| 101 | }; |
| 102 | |
| 103 | struct net_bridge_mdb_htable |
| 104 | { |
| 105 | struct hlist_head *mhash; |
| 106 | struct rcu_head rcu; |
| 107 | struct net_bridge_mdb_htable *old; |
| 108 | u32 size; |
| 109 | u32 max; |
| 110 | u32 secret; |
| 111 | u32 ver; |
| 112 | }; |
| 113 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | struct net_bridge_port |
| 115 | { |
| 116 | struct net_bridge *br; |
| 117 | struct net_device *dev; |
| 118 | struct list_head list; |
| 119 | |
| 120 | /* STP */ |
| 121 | u8 priority; |
| 122 | u8 state; |
| 123 | u16 port_no; |
| 124 | unsigned char topology_change_ack; |
| 125 | unsigned char config_pending; |
| 126 | port_id port_id; |
| 127 | port_id designated_port; |
| 128 | bridge_id designated_root; |
| 129 | bridge_id designated_bridge; |
| 130 | u32 path_cost; |
| 131 | u32 designated_cost; |
stephen hemminger | 0c03150 | 2011-07-22 07:47:06 +0000 | [diff] [blame] | 132 | unsigned long designated_age; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | |
| 134 | struct timer_list forward_delay_timer; |
| 135 | struct timer_list hold_timer; |
| 136 | struct timer_list message_age_timer; |
| 137 | struct kobject kobj; |
| 138 | struct rcu_head rcu; |
Fischer, Anna | 3982d3d | 2009-08-13 06:55:16 +0000 | [diff] [blame] | 139 | |
| 140 | unsigned long flags; |
| 141 | #define BR_HAIRPIN_MODE 0x00000001 |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 142 | |
| 143 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| 144 | u32 multicast_startup_queries_sent; |
| 145 | unsigned char multicast_router; |
| 146 | struct timer_list multicast_router_timer; |
| 147 | struct timer_list multicast_query_timer; |
| 148 | struct hlist_head mglist; |
| 149 | struct hlist_node rlist; |
| 150 | #endif |
Simon Arlott | e0f4375 | 2010-05-10 09:31:11 +0000 | [diff] [blame] | 151 | |
| 152 | #ifdef CONFIG_SYSFS |
| 153 | char sysfs_name[IFNAMSIZ]; |
| 154 | #endif |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 155 | |
| 156 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 157 | struct netpoll *np; |
| 158 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | }; |
| 160 | |
Jiri Pirko | f350a0a | 2010-06-15 06:50:45 +0000 | [diff] [blame] | 161 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
| 162 | |
stephen hemminger | b5ed54e | 2010-11-15 06:38:13 +0000 | [diff] [blame] | 163 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
| 164 | { |
| 165 | struct net_bridge_port *port = rcu_dereference(dev->rx_handler_data); |
| 166 | return br_port_exists(dev) ? port : NULL; |
| 167 | } |
| 168 | |
Eric Dumazet | ec1e561 | 2010-11-15 06:38:14 +0000 | [diff] [blame] | 169 | static inline struct net_bridge_port *br_port_get_rtnl(struct net_device *dev) |
stephen hemminger | b5ed54e | 2010-11-15 06:38:13 +0000 | [diff] [blame] | 170 | { |
Eric Dumazet | ec1e561 | 2010-11-15 06:38:14 +0000 | [diff] [blame] | 171 | return br_port_exists(dev) ? |
| 172 | rtnl_dereference(dev->rx_handler_data) : NULL; |
stephen hemminger | b5ed54e | 2010-11-15 06:38:13 +0000 | [diff] [blame] | 173 | } |
| 174 | |
Eric Dumazet | 0eae88f | 2010-04-20 19:06:52 -0700 | [diff] [blame] | 175 | struct br_cpu_netstats { |
Eric Dumazet | 406818f | 2010-06-23 13:00:48 -0700 | [diff] [blame] | 176 | u64 rx_packets; |
| 177 | u64 rx_bytes; |
| 178 | u64 tx_packets; |
| 179 | u64 tx_bytes; |
| 180 | struct u64_stats_sync syncp; |
Eric Dumazet | 0eae88f | 2010-04-20 19:06:52 -0700 | [diff] [blame] | 181 | }; |
| 182 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | struct net_bridge |
| 184 | { |
| 185 | spinlock_t lock; |
| 186 | struct list_head port_list; |
| 187 | struct net_device *dev; |
stephen hemminger | 14bb478 | 2010-03-02 13:32:09 +0000 | [diff] [blame] | 188 | |
Eric Dumazet | 0eae88f | 2010-04-20 19:06:52 -0700 | [diff] [blame] | 189 | struct br_cpu_netstats __percpu *stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | spinlock_t hash_lock; |
| 191 | struct hlist_head hash[BR_HASH_SIZE]; |
Simon Wunderlich | 4adf0af | 2008-07-30 16:27:55 -0700 | [diff] [blame] | 192 | #ifdef CONFIG_BRIDGE_NETFILTER |
| 193 | struct rtable fake_rtable; |
Patrick McHardy | 4df53d8 | 2010-07-02 09:32:57 +0200 | [diff] [blame] | 194 | bool nf_call_iptables; |
| 195 | bool nf_call_ip6tables; |
| 196 | bool nf_call_arptables; |
Simon Wunderlich | 4adf0af | 2008-07-30 16:27:55 -0700 | [diff] [blame] | 197 | #endif |
Stephen Hemminger | 92c0574 | 2008-06-17 16:10:06 -0700 | [diff] [blame] | 198 | unsigned long flags; |
| 199 | #define BR_SET_MAC_ADDR 0x00000001 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
stephen hemminger | 515853c | 2011-10-03 18:14:46 +0000 | [diff] [blame^] | 201 | u16 group_fwd_mask; |
| 202 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | /* STP */ |
| 204 | bridge_id designated_root; |
| 205 | bridge_id bridge_id; |
| 206 | u32 root_path_cost; |
| 207 | unsigned long max_age; |
| 208 | unsigned long hello_time; |
| 209 | unsigned long forward_delay; |
| 210 | unsigned long bridge_max_age; |
| 211 | unsigned long ageing_time; |
| 212 | unsigned long bridge_hello_time; |
| 213 | unsigned long bridge_forward_delay; |
| 214 | |
Stephen Hemminger | fda93d9 | 2006-03-20 22:59:21 -0800 | [diff] [blame] | 215 | u8 group_addr[ETH_ALEN]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | u16 root_port; |
Stephen Hemminger | 9cde070 | 2007-03-21 14:22:44 -0700 | [diff] [blame] | 217 | |
| 218 | enum { |
| 219 | BR_NO_STP, /* no spanning tree */ |
| 220 | BR_KERNEL_STP, /* old STP in kernel */ |
| 221 | BR_USER_STP, /* new RSTP in userspace */ |
| 222 | } stp_enabled; |
| 223 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | unsigned char topology_change; |
| 225 | unsigned char topology_change_detected; |
| 226 | |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 227 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| 228 | unsigned char multicast_router; |
| 229 | |
| 230 | u8 multicast_disabled:1; |
| 231 | |
| 232 | u32 hash_elasticity; |
| 233 | u32 hash_max; |
| 234 | |
| 235 | u32 multicast_last_member_count; |
| 236 | u32 multicast_startup_queries_sent; |
| 237 | u32 multicast_startup_query_count; |
| 238 | |
| 239 | unsigned long multicast_last_member_interval; |
| 240 | unsigned long multicast_membership_interval; |
| 241 | unsigned long multicast_querier_interval; |
| 242 | unsigned long multicast_query_interval; |
| 243 | unsigned long multicast_query_response_interval; |
| 244 | unsigned long multicast_startup_query_interval; |
| 245 | |
| 246 | spinlock_t multicast_lock; |
Eric Dumazet | e805168 | 2010-11-15 06:38:10 +0000 | [diff] [blame] | 247 | struct net_bridge_mdb_htable __rcu *mdb; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 248 | struct hlist_head router_list; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 249 | |
| 250 | struct timer_list multicast_router_timer; |
| 251 | struct timer_list multicast_querier_timer; |
| 252 | struct timer_list multicast_query_timer; |
| 253 | #endif |
| 254 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | struct timer_list hello_timer; |
| 256 | struct timer_list tcn_timer; |
| 257 | struct timer_list topology_change_timer; |
| 258 | struct timer_list gc_timer; |
Greg Kroah-Hartman | 43b98c4 | 2007-12-17 15:54:39 -0400 | [diff] [blame] | 259 | struct kobject *ifobj; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | }; |
| 261 | |
Herbert Xu | 68b7c89 | 2010-02-27 19:41:40 +0000 | [diff] [blame] | 262 | struct br_input_skb_cb { |
| 263 | struct net_device *brdev; |
YOSHIFUJI Hideaki / 吉藤英明 | 32dec5d | 2010-03-15 21:51:18 +0000 | [diff] [blame] | 264 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 265 | int igmp; |
| 266 | int mrouters_only; |
YOSHIFUJI Hideaki / 吉藤英明 | 32dec5d | 2010-03-15 21:51:18 +0000 | [diff] [blame] | 267 | #endif |
Herbert Xu | 68b7c89 | 2010-02-27 19:41:40 +0000 | [diff] [blame] | 268 | }; |
| 269 | |
| 270 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) |
| 271 | |
YOSHIFUJI Hideaki / 吉藤英明 | 32dec5d | 2010-03-15 21:51:18 +0000 | [diff] [blame] | 272 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| 273 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) |
| 274 | #else |
| 275 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) |
| 276 | #endif |
| 277 | |
stephen hemminger | 28a16c9 | 2010-05-10 09:31:09 +0000 | [diff] [blame] | 278 | #define br_printk(level, br, format, args...) \ |
| 279 | printk(level "%s: " format, (br)->dev->name, ##args) |
| 280 | |
| 281 | #define br_err(__br, format, args...) \ |
| 282 | br_printk(KERN_ERR, __br, format, ##args) |
| 283 | #define br_warn(__br, format, args...) \ |
| 284 | br_printk(KERN_WARNING, __br, format, ##args) |
| 285 | #define br_notice(__br, format, args...) \ |
| 286 | br_printk(KERN_NOTICE, __br, format, ##args) |
| 287 | #define br_info(__br, format, args...) \ |
| 288 | br_printk(KERN_INFO, __br, format, ##args) |
| 289 | |
| 290 | #define br_debug(br, format, args...) \ |
| 291 | pr_debug("%s: " format, (br)->dev->name, ##args) |
| 292 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | extern struct notifier_block br_device_notifier; |
Stephen Hemminger | fda93d9 | 2006-03-20 22:59:21 -0800 | [diff] [blame] | 294 | extern const u8 br_group_address[ETH_ALEN]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | |
| 296 | /* called under bridge lock */ |
| 297 | static inline int br_is_root_bridge(const struct net_bridge *br) |
| 298 | { |
| 299 | return !memcmp(&br->bridge_id, &br->designated_root, 8); |
| 300 | } |
| 301 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | /* br_device.c */ |
| 303 | extern void br_dev_setup(struct net_device *dev); |
Stephen Hemminger | 6fef4c0 | 2009-08-31 19:50:41 +0000 | [diff] [blame] | 304 | extern netdev_tx_t br_dev_xmit(struct sk_buff *skb, |
| 305 | struct net_device *dev); |
stephen hemminger | cfb478d | 2010-05-10 09:31:08 +0000 | [diff] [blame] | 306 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 307 | static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) |
| 308 | { |
| 309 | return br->dev->npinfo; |
| 310 | } |
stephen hemminger | cfb478d | 2010-05-10 09:31:08 +0000 | [diff] [blame] | 311 | |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 312 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
| 313 | struct sk_buff *skb) |
| 314 | { |
| 315 | struct netpoll *np = p->np; |
| 316 | |
| 317 | if (np) |
| 318 | netpoll_send_skb(np, skb); |
| 319 | } |
| 320 | |
| 321 | extern int br_netpoll_enable(struct net_bridge_port *p); |
| 322 | extern void br_netpoll_disable(struct net_bridge_port *p); |
| 323 | #else |
| 324 | static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) |
| 325 | { |
| 326 | return NULL; |
| 327 | } |
| 328 | |
Herbert Xu | 9f70b0f | 2010-06-15 21:43:48 -0700 | [diff] [blame] | 329 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 330 | struct sk_buff *skb) |
| 331 | { |
| 332 | } |
| 333 | |
| 334 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
| 335 | { |
| 336 | return 0; |
| 337 | } |
| 338 | |
| 339 | static inline void br_netpoll_disable(struct net_bridge_port *p) |
| 340 | { |
| 341 | } |
stephen hemminger | cfb478d | 2010-05-10 09:31:08 +0000 | [diff] [blame] | 342 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | |
| 344 | /* br_fdb.c */ |
Akinobu Mita | 87a596e | 2007-04-07 18:57:07 +0900 | [diff] [blame] | 345 | extern int br_fdb_init(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | extern void br_fdb_fini(void); |
Stephen Hemminger | 9cf6374 | 2007-04-09 12:57:54 -0700 | [diff] [blame] | 347 | extern void br_fdb_flush(struct net_bridge *br); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | extern void br_fdb_changeaddr(struct net_bridge_port *p, |
| 349 | const unsigned char *newaddr); |
| 350 | extern void br_fdb_cleanup(unsigned long arg); |
| 351 | extern void br_fdb_delete_by_port(struct net_bridge *br, |
Stephen Hemminger | 1a62069 | 2006-10-12 14:45:38 -0700 | [diff] [blame] | 352 | const struct net_bridge_port *p, int do_all); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, |
| 354 | const unsigned char *addr); |
Michał Mirosław | da67829 | 2009-06-05 05:35:28 +0000 | [diff] [blame] | 355 | extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); |
YOSHIFUJI Hideaki | 9d6f229 | 2007-02-09 23:24:35 +0900 | [diff] [blame] | 356 | extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | unsigned long count, unsigned long off); |
| 358 | extern int br_fdb_insert(struct net_bridge *br, |
| 359 | struct net_bridge_port *source, |
| 360 | const unsigned char *addr); |
| 361 | extern void br_fdb_update(struct net_bridge *br, |
| 362 | struct net_bridge_port *source, |
| 363 | const unsigned char *addr); |
stephen hemminger | b078f0d | 2011-04-04 14:03:30 +0000 | [diff] [blame] | 364 | extern int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb); |
stephen hemminger | 36fd2b6 | 2011-04-04 14:03:31 +0000 | [diff] [blame] | 365 | extern int br_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg); |
| 366 | extern int br_fdb_delete(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | |
| 368 | /* br_forward.c */ |
| 369 | extern void br_deliver(const struct net_bridge_port *to, |
| 370 | struct sk_buff *skb); |
| 371 | extern int br_dev_queue_push_xmit(struct sk_buff *skb); |
| 372 | extern void br_forward(const struct net_bridge_port *to, |
Michael Braun | 7f7708f | 2010-03-16 00:26:22 -0700 | [diff] [blame] | 373 | struct sk_buff *skb, struct sk_buff *skb0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | extern int br_forward_finish(struct sk_buff *skb); |
Herbert Xu | e081e1e | 2007-09-16 16:20:48 -0700 | [diff] [blame] | 375 | extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb); |
Herbert Xu | b33084b | 2010-02-27 19:41:41 +0000 | [diff] [blame] | 376 | extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, |
| 377 | struct sk_buff *skb2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | |
| 379 | /* br_if.c */ |
Stephen Hemminger | 269def7 | 2007-02-22 01:10:18 -0800 | [diff] [blame] | 380 | extern void br_port_carrier_check(struct net_bridge_port *p); |
Alexey Dobriyan | 4aa678b | 2008-09-08 16:19:58 -0700 | [diff] [blame] | 381 | extern int br_add_bridge(struct net *net, const char *name); |
| 382 | extern int br_del_bridge(struct net *net, const char *name); |
Alexey Dobriyan | 712d695 | 2008-09-08 16:20:18 -0700 | [diff] [blame] | 383 | extern void br_net_exit(struct net *net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | extern int br_add_if(struct net_bridge *br, |
| 385 | struct net_device *dev); |
| 386 | extern int br_del_if(struct net_bridge *br, |
| 387 | struct net_device *dev); |
| 388 | extern int br_min_mtu(const struct net_bridge *br); |
Michał Mirosław | c4d27ef | 2011-04-22 06:31:16 +0000 | [diff] [blame] | 389 | extern u32 br_features_recompute(struct net_bridge *br, u32 features); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | |
| 391 | /* br_input.c */ |
| 392 | extern int br_handle_frame_finish(struct sk_buff *skb); |
Jiri Pirko | 8a4eb57 | 2011-03-12 03:14:39 +0000 | [diff] [blame] | 393 | extern rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | |
| 395 | /* br_ioctl.c */ |
| 396 | extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
Eric W. Biederman | 881d966 | 2007-09-17 11:56:21 -0700 | [diff] [blame] | 397 | extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 399 | /* br_multicast.c */ |
| 400 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| 401 | extern int br_multicast_rcv(struct net_bridge *br, |
| 402 | struct net_bridge_port *port, |
| 403 | struct sk_buff *skb); |
| 404 | extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
| 405 | struct sk_buff *skb); |
| 406 | extern void br_multicast_add_port(struct net_bridge_port *port); |
| 407 | extern void br_multicast_del_port(struct net_bridge_port *port); |
| 408 | extern void br_multicast_enable_port(struct net_bridge_port *port); |
| 409 | extern void br_multicast_disable_port(struct net_bridge_port *port); |
| 410 | extern void br_multicast_init(struct net_bridge *br); |
| 411 | extern void br_multicast_open(struct net_bridge *br); |
| 412 | extern void br_multicast_stop(struct net_bridge *br); |
Herbert Xu | 5cb5e94 | 2010-02-27 19:41:46 +0000 | [diff] [blame] | 413 | extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, |
| 414 | struct sk_buff *skb); |
| 415 | extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst, |
| 416 | struct sk_buff *skb, struct sk_buff *skb2); |
Herbert Xu | 0909e11 | 2010-02-27 19:41:49 +0000 | [diff] [blame] | 417 | extern int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
| 418 | extern int br_multicast_set_port_router(struct net_bridge_port *p, |
| 419 | unsigned long val); |
Herbert Xu | 561f1103 | 2010-02-27 19:41:50 +0000 | [diff] [blame] | 420 | extern int br_multicast_toggle(struct net_bridge *br, unsigned long val); |
Herbert Xu | b195167 | 2010-02-27 19:41:51 +0000 | [diff] [blame] | 421 | extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); |
Sridhar Samudrala | 85b3526 | 2010-03-01 09:53:04 +0000 | [diff] [blame] | 422 | |
| 423 | static inline bool br_multicast_is_router(struct net_bridge *br) |
| 424 | { |
| 425 | return br->multicast_router == 2 || |
| 426 | (br->multicast_router == 1 && |
| 427 | timer_pending(&br->multicast_router_timer)); |
| 428 | } |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 429 | #else |
| 430 | static inline int br_multicast_rcv(struct net_bridge *br, |
| 431 | struct net_bridge_port *port, |
| 432 | struct sk_buff *skb) |
| 433 | { |
| 434 | return 0; |
| 435 | } |
| 436 | |
| 437 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
| 438 | struct sk_buff *skb) |
| 439 | { |
| 440 | return NULL; |
| 441 | } |
| 442 | |
| 443 | static inline void br_multicast_add_port(struct net_bridge_port *port) |
| 444 | { |
| 445 | } |
| 446 | |
| 447 | static inline void br_multicast_del_port(struct net_bridge_port *port) |
| 448 | { |
| 449 | } |
| 450 | |
| 451 | static inline void br_multicast_enable_port(struct net_bridge_port *port) |
| 452 | { |
| 453 | } |
| 454 | |
| 455 | static inline void br_multicast_disable_port(struct net_bridge_port *port) |
| 456 | { |
| 457 | } |
| 458 | |
| 459 | static inline void br_multicast_init(struct net_bridge *br) |
| 460 | { |
| 461 | } |
| 462 | |
| 463 | static inline void br_multicast_open(struct net_bridge *br) |
| 464 | { |
| 465 | } |
| 466 | |
| 467 | static inline void br_multicast_stop(struct net_bridge *br) |
| 468 | { |
| 469 | } |
Herbert Xu | 5cb5e94 | 2010-02-27 19:41:46 +0000 | [diff] [blame] | 470 | |
| 471 | static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, |
| 472 | struct sk_buff *skb) |
| 473 | { |
| 474 | } |
| 475 | |
| 476 | static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, |
| 477 | struct sk_buff *skb, |
| 478 | struct sk_buff *skb2) |
| 479 | { |
| 480 | } |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 481 | static inline bool br_multicast_is_router(struct net_bridge *br) |
| 482 | { |
Sridhar Samudrala | 85b3526 | 2010-03-01 09:53:04 +0000 | [diff] [blame] | 483 | return 0; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 484 | } |
Sridhar Samudrala | 85b3526 | 2010-03-01 09:53:04 +0000 | [diff] [blame] | 485 | #endif |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 486 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | /* br_netfilter.c */ |
Stephen Hemminger | c090971 | 2006-05-25 15:59:33 -0700 | [diff] [blame] | 488 | #ifdef CONFIG_BRIDGE_NETFILTER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | extern int br_netfilter_init(void); |
| 490 | extern void br_netfilter_fini(void); |
Simon Wunderlich | 4adf0af | 2008-07-30 16:27:55 -0700 | [diff] [blame] | 491 | extern void br_netfilter_rtable_init(struct net_bridge *); |
Stephen Hemminger | c090971 | 2006-05-25 15:59:33 -0700 | [diff] [blame] | 492 | #else |
| 493 | #define br_netfilter_init() (0) |
| 494 | #define br_netfilter_fini() do { } while(0) |
Simon Wunderlich | 4adf0af | 2008-07-30 16:27:55 -0700 | [diff] [blame] | 495 | #define br_netfilter_rtable_init(x) |
Stephen Hemminger | c090971 | 2006-05-25 15:59:33 -0700 | [diff] [blame] | 496 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | |
| 498 | /* br_stp.c */ |
| 499 | extern void br_log_state(const struct net_bridge_port *p); |
| 500 | extern struct net_bridge_port *br_get_port(struct net_bridge *br, |
YOSHIFUJI Hideaki | 9d6f229 | 2007-02-09 23:24:35 +0900 | [diff] [blame] | 501 | u16 port_no); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | extern void br_init_port(struct net_bridge_port *p); |
| 503 | extern void br_become_designated_port(struct net_bridge_port *p); |
| 504 | |
stephen hemminger | 14f98f2 | 2011-04-04 14:03:33 +0000 | [diff] [blame] | 505 | extern int br_set_forward_delay(struct net_bridge *br, unsigned long x); |
| 506 | extern int br_set_hello_time(struct net_bridge *br, unsigned long x); |
| 507 | extern int br_set_max_age(struct net_bridge *br, unsigned long x); |
| 508 | |
| 509 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | /* br_stp_if.c */ |
| 511 | extern void br_stp_enable_bridge(struct net_bridge *br); |
| 512 | extern void br_stp_disable_bridge(struct net_bridge *br); |
Stephen Hemminger | 9cde070 | 2007-03-21 14:22:44 -0700 | [diff] [blame] | 513 | extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | extern void br_stp_enable_port(struct net_bridge_port *p); |
| 515 | extern void br_stp_disable_port(struct net_bridge_port *p); |
stephen hemminger | edf947f | 2011-03-24 13:24:01 +0000 | [diff] [blame] | 516 | extern bool br_stp_recalculate_bridge_id(struct net_bridge *br); |
Stephen Hemminger | 4505a3e | 2005-12-21 18:51:49 -0800 | [diff] [blame] | 517 | extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | extern void br_stp_set_bridge_priority(struct net_bridge *br, |
| 519 | u16 newprio); |
stephen hemminger | 14f98f2 | 2011-04-04 14:03:33 +0000 | [diff] [blame] | 520 | extern int br_stp_set_port_priority(struct net_bridge_port *p, |
| 521 | unsigned long newprio); |
| 522 | extern int br_stp_set_path_cost(struct net_bridge_port *p, |
| 523 | unsigned long path_cost); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); |
| 525 | |
| 526 | /* br_stp_bpdu.c */ |
Patrick McHardy | 7c85fbf | 2008-07-05 21:25:56 -0700 | [diff] [blame] | 527 | struct stp_proto; |
| 528 | extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
| 529 | struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | |
| 531 | /* br_stp_timer.c */ |
| 532 | extern void br_stp_timer_init(struct net_bridge *br); |
| 533 | extern void br_stp_port_timer_init(struct net_bridge_port *p); |
| 534 | extern unsigned long br_timer_value(const struct timer_list *timer); |
| 535 | |
| 536 | /* br.c */ |
Michał Mirosław | da67829 | 2009-06-05 05:35:28 +0000 | [diff] [blame] | 537 | #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE) |
| 538 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
| 539 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | |
Stephen Hemminger | 11dc1f3 | 2006-05-25 16:00:12 -0700 | [diff] [blame] | 541 | /* br_netlink.c */ |
Thomas Graf | 32fe21c | 2007-03-22 11:59:03 -0700 | [diff] [blame] | 542 | extern int br_netlink_init(void); |
Stephen Hemminger | 11dc1f3 | 2006-05-25 16:00:12 -0700 | [diff] [blame] | 543 | extern void br_netlink_fini(void); |
| 544 | extern void br_ifinfo_notify(int event, struct net_bridge_port *port); |
| 545 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | #ifdef CONFIG_SYSFS |
| 547 | /* br_sysfs_if.c */ |
Emese Revfy | 52cf25d | 2010-01-19 02:58:23 +0100 | [diff] [blame] | 548 | extern const struct sysfs_ops brport_sysfs_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | extern int br_sysfs_addif(struct net_bridge_port *p); |
Simon Arlott | e0f4375 | 2010-05-10 09:31:11 +0000 | [diff] [blame] | 550 | extern int br_sysfs_renameif(struct net_bridge_port *p); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | |
| 552 | /* br_sysfs_br.c */ |
| 553 | extern int br_sysfs_addbr(struct net_device *dev); |
| 554 | extern void br_sysfs_delbr(struct net_device *dev); |
| 555 | |
| 556 | #else |
| 557 | |
| 558 | #define br_sysfs_addif(p) (0) |
Simon Arlott | e0f4375 | 2010-05-10 09:31:11 +0000 | [diff] [blame] | 559 | #define br_sysfs_renameif(p) (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | #define br_sysfs_addbr(dev) (0) |
| 561 | #define br_sysfs_delbr(dev) do { } while(0) |
| 562 | #endif /* CONFIG_SYSFS */ |
| 563 | |
| 564 | #endif |