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> |
Bernhard Thaler | efb6de9 | 2015-05-30 15:30:16 +0200 | [diff] [blame] | 21 | #include <net/ip6_fib.h> |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 22 | #include <linux/if_vlan.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | |
| 24 | #define BR_HASH_BITS 8 |
| 25 | #define BR_HASH_SIZE (1 << BR_HASH_BITS) |
| 26 | |
| 27 | #define BR_HOLD_TIME (1*HZ) |
| 28 | |
| 29 | #define BR_PORT_BITS 10 |
| 30 | #define BR_MAX_PORTS (1<<BR_PORT_BITS) |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 31 | #define BR_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | |
Stephen Hemminger | 9cde070 | 2007-03-21 14:22:44 -0700 | [diff] [blame] | 33 | #define BR_VERSION "2.3" |
| 34 | |
stephen hemminger | 515853c | 2011-10-03 18:14:46 +0000 | [diff] [blame] | 35 | /* Control of forwarding link local multicast */ |
| 36 | #define BR_GROUPFWD_DEFAULT 0 |
Bernhard Thaler | 784b58a | 2015-05-04 22:47:13 +0200 | [diff] [blame] | 37 | /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ |
| 38 | #define BR_GROUPFWD_RESTRICTED 0x0007u |
Toshiaki Makita | f2808d2 | 2014-06-10 20:59:24 +0900 | [diff] [blame] | 39 | /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ |
| 40 | #define BR_GROUPFWD_8021AD 0xB801u |
stephen hemminger | 515853c | 2011-10-03 18:14:46 +0000 | [diff] [blame] | 41 | |
Stephen Hemminger | 9cde070 | 2007-03-21 14:22:44 -0700 | [diff] [blame] | 42 | /* Path to usermode spanning tree program */ |
| 43 | #define BR_STP_PROG "/sbin/bridge-stp" |
Stephen Hemminger | 8cbb512e | 2005-12-21 19:01:30 -0800 | [diff] [blame] | 44 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | typedef struct bridge_id bridge_id; |
| 46 | typedef struct mac_addr mac_addr; |
| 47 | typedef __u16 port_id; |
| 48 | |
| 49 | struct bridge_id |
| 50 | { |
| 51 | unsigned char prio[2]; |
Joe Perches | e5a727f | 2014-02-23 00:05:25 -0800 | [diff] [blame] | 52 | unsigned char addr[ETH_ALEN]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | }; |
| 54 | |
| 55 | struct mac_addr |
| 56 | { |
Joe Perches | e5a727f | 2014-02-23 00:05:25 -0800 | [diff] [blame] | 57 | unsigned char addr[ETH_ALEN]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | }; |
| 59 | |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 60 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| 61 | /* our own querier */ |
Linus Lüssing | 90010b3 | 2014-06-07 18:26:26 +0200 | [diff] [blame] | 62 | struct bridge_mcast_own_query { |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 63 | struct timer_list timer; |
| 64 | u32 startup_sent; |
| 65 | }; |
| 66 | |
| 67 | /* other querier */ |
Linus Lüssing | 90010b3 | 2014-06-07 18:26:26 +0200 | [diff] [blame] | 68 | struct bridge_mcast_other_query { |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 69 | struct timer_list timer; |
| 70 | unsigned long delay_time; |
| 71 | }; |
Linus Lüssing | dc4eb53 | 2014-06-07 18:26:27 +0200 | [diff] [blame] | 72 | |
| 73 | /* selected querier */ |
| 74 | struct bridge_mcast_querier { |
| 75 | struct br_ip addr; |
Linus Lüssing | 2cd4143 | 2014-06-07 18:26:29 +0200 | [diff] [blame] | 76 | struct net_bridge_port __rcu *port; |
Linus Lüssing | dc4eb53 | 2014-06-07 18:26:27 +0200 | [diff] [blame] | 77 | }; |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 78 | #endif |
| 79 | |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 80 | struct net_port_vlans { |
| 81 | u16 port_idx; |
Vlad Yasevich | 7885198 | 2013-02-13 12:00:14 +0000 | [diff] [blame] | 82 | u16 pvid; |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 83 | union { |
| 84 | struct net_bridge_port *port; |
| 85 | struct net_bridge *br; |
| 86 | } parent; |
| 87 | struct rcu_head rcu; |
| 88 | unsigned long vlan_bitmap[BR_VLAN_BITMAP_LEN]; |
Vlad Yasevich | 35e03f3 | 2013-02-13 12:00:20 +0000 | [diff] [blame] | 89 | unsigned long untagged_bitmap[BR_VLAN_BITMAP_LEN]; |
Vlad Yasevich | 6cbdcee | 2013-02-13 12:00:13 +0000 | [diff] [blame] | 90 | u16 num_vlans; |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 91 | }; |
| 92 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | struct net_bridge_fdb_entry |
| 94 | { |
| 95 | struct hlist_node hlist; |
| 96 | struct net_bridge_port *dst; |
| 97 | |
| 98 | struct rcu_head rcu; |
stephen hemminger | 7cd8861 | 2011-04-04 14:03:28 +0000 | [diff] [blame] | 99 | unsigned long updated; |
| 100 | unsigned long used; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | mac_addr addr; |
Jiri Pirko | 93859b1 | 2014-11-28 14:34:14 +0100 | [diff] [blame] | 102 | unsigned char is_local:1, |
| 103 | is_static:1, |
Scott Feldman | cf6b8e1 | 2014-11-28 14:34:21 +0100 | [diff] [blame] | 104 | added_by_user:1, |
| 105 | added_by_external_learn:1; |
Vlad Yasevich | 2ba071e | 2013-02-13 12:00:16 +0000 | [diff] [blame] | 106 | __u16 vlan_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | }; |
| 108 | |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 109 | struct net_bridge_port_group { |
| 110 | struct net_bridge_port *port; |
Eric Dumazet | e805168 | 2010-11-15 06:38:10 +0000 | [diff] [blame] | 111 | struct net_bridge_port_group __rcu *next; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 112 | struct hlist_node mglist; |
| 113 | struct rcu_head rcu; |
| 114 | struct timer_list timer; |
YOSHIFUJI Hideaki | 8ef2a9a | 2010-04-18 12:42:07 +0900 | [diff] [blame] | 115 | struct br_ip addr; |
Amerigo Wang | ccb1c31 | 2012-12-14 22:09:51 +0000 | [diff] [blame] | 116 | unsigned char state; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 117 | }; |
| 118 | |
| 119 | struct net_bridge_mdb_entry |
| 120 | { |
| 121 | struct hlist_node hlist[2]; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 122 | struct net_bridge *br; |
Eric Dumazet | e805168 | 2010-11-15 06:38:10 +0000 | [diff] [blame] | 123 | struct net_bridge_port_group __rcu *ports; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 124 | struct rcu_head rcu; |
| 125 | struct timer_list timer; |
YOSHIFUJI Hideaki | 8ef2a9a | 2010-04-18 12:42:07 +0900 | [diff] [blame] | 126 | struct br_ip addr; |
Herbert Xu | 8a87017 | 2011-02-12 01:05:42 -0800 | [diff] [blame] | 127 | bool mglist; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 128 | }; |
| 129 | |
| 130 | struct net_bridge_mdb_htable |
| 131 | { |
| 132 | struct hlist_head *mhash; |
| 133 | struct rcu_head rcu; |
| 134 | struct net_bridge_mdb_htable *old; |
| 135 | u32 size; |
| 136 | u32 max; |
| 137 | u32 secret; |
| 138 | u32 ver; |
| 139 | }; |
| 140 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | struct net_bridge_port |
| 142 | { |
| 143 | struct net_bridge *br; |
| 144 | struct net_device *dev; |
| 145 | struct list_head list; |
| 146 | |
| 147 | /* STP */ |
| 148 | u8 priority; |
| 149 | u8 state; |
| 150 | u16 port_no; |
| 151 | unsigned char topology_change_ack; |
| 152 | unsigned char config_pending; |
| 153 | port_id port_id; |
| 154 | port_id designated_port; |
| 155 | bridge_id designated_root; |
| 156 | bridge_id designated_bridge; |
| 157 | u32 path_cost; |
| 158 | u32 designated_cost; |
stephen hemminger | 0c03150 | 2011-07-22 07:47:06 +0000 | [diff] [blame] | 159 | unsigned long designated_age; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | |
| 161 | struct timer_list forward_delay_timer; |
| 162 | struct timer_list hold_timer; |
| 163 | struct timer_list message_age_timer; |
| 164 | struct kobject kobj; |
| 165 | struct rcu_head rcu; |
Fischer, Anna | 3982d3d | 2009-08-13 06:55:16 +0000 | [diff] [blame] | 166 | |
| 167 | unsigned long flags; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 168 | |
| 169 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
Linus Lüssing | 90010b3 | 2014-06-07 18:26:26 +0200 | [diff] [blame] | 170 | struct bridge_mcast_own_query ip4_own_query; |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 171 | #if IS_ENABLED(CONFIG_IPV6) |
Linus Lüssing | 90010b3 | 2014-06-07 18:26:26 +0200 | [diff] [blame] | 172 | struct bridge_mcast_own_query ip6_own_query; |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 173 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 174 | unsigned char multicast_router; |
| 175 | struct timer_list multicast_router_timer; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 176 | struct hlist_head mglist; |
| 177 | struct hlist_node rlist; |
| 178 | #endif |
Simon Arlott | e0f4375 | 2010-05-10 09:31:11 +0000 | [diff] [blame] | 179 | |
| 180 | #ifdef CONFIG_SYSFS |
| 181 | char sysfs_name[IFNAMSIZ]; |
| 182 | #endif |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 183 | |
| 184 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 185 | struct netpoll *np; |
| 186 | #endif |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 187 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
| 188 | struct net_port_vlans __rcu *vlan_info; |
| 189 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | }; |
| 191 | |
Vlad Yasevich | e028e4b | 2014-05-16 09:59:16 -0400 | [diff] [blame] | 192 | #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) |
Vlad Yasevich | f3a6ddf | 2014-05-16 09:59:18 -0400 | [diff] [blame] | 193 | #define br_promisc_port(p) ((p)->flags & BR_PROMISC) |
Vlad Yasevich | e028e4b | 2014-05-16 09:59:16 -0400 | [diff] [blame] | 194 | |
Jiri Pirko | f350a0a8 | 2010-06-15 06:50:45 +0000 | [diff] [blame] | 195 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
| 196 | |
stephen hemminger | b5ed54e | 2010-11-15 06:38:13 +0000 | [diff] [blame] | 197 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
| 198 | { |
Hong Zhiguo | 716ec05 | 2013-09-14 22:42:28 +0800 | [diff] [blame] | 199 | return rcu_dereference(dev->rx_handler_data); |
stephen hemminger | b5ed54e | 2010-11-15 06:38:13 +0000 | [diff] [blame] | 200 | } |
| 201 | |
Hong Zhiguo | 1fb1754 | 2013-09-14 22:42:27 +0800 | [diff] [blame] | 202 | static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) |
stephen hemminger | b5ed54e | 2010-11-15 06:38:13 +0000 | [diff] [blame] | 203 | { |
Eric Dumazet | ec1e561 | 2010-11-15 06:38:14 +0000 | [diff] [blame] | 204 | return br_port_exists(dev) ? |
| 205 | rtnl_dereference(dev->rx_handler_data) : NULL; |
stephen hemminger | b5ed54e | 2010-11-15 06:38:13 +0000 | [diff] [blame] | 206 | } |
| 207 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | struct net_bridge |
| 209 | { |
| 210 | spinlock_t lock; |
| 211 | struct list_head port_list; |
| 212 | struct net_device *dev; |
stephen hemminger | 14bb478 | 2010-03-02 13:32:09 +0000 | [diff] [blame] | 213 | |
Li RongQing | 8f84985 | 2014-01-04 13:57:59 +0800 | [diff] [blame] | 214 | struct pcpu_sw_netstats __percpu *stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | spinlock_t hash_lock; |
| 216 | struct hlist_head hash[BR_HASH_SIZE]; |
Pablo Neira Ayuso | 34666d4 | 2014-09-18 11:29:03 +0200 | [diff] [blame] | 217 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
Bernhard Thaler | efb6de9 | 2015-05-30 15:30:16 +0200 | [diff] [blame] | 218 | union { |
| 219 | struct rtable fake_rtable; |
| 220 | struct rt6_info fake_rt6_info; |
| 221 | }; |
Patrick McHardy | 4df53d8 | 2010-07-02 09:32:57 +0200 | [diff] [blame] | 222 | bool nf_call_iptables; |
| 223 | bool nf_call_ip6tables; |
| 224 | bool nf_call_arptables; |
Simon Wunderlich | 4adf0af | 2008-07-30 16:27:55 -0700 | [diff] [blame] | 225 | #endif |
stephen hemminger | 515853c | 2011-10-03 18:14:46 +0000 | [diff] [blame] | 226 | u16 group_fwd_mask; |
Toshiaki Makita | f2808d2 | 2014-06-10 20:59:24 +0900 | [diff] [blame] | 227 | u16 group_fwd_mask_required; |
stephen hemminger | 515853c | 2011-10-03 18:14:46 +0000 | [diff] [blame] | 228 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | /* STP */ |
| 230 | bridge_id designated_root; |
| 231 | bridge_id bridge_id; |
| 232 | u32 root_path_cost; |
| 233 | unsigned long max_age; |
| 234 | unsigned long hello_time; |
| 235 | unsigned long forward_delay; |
| 236 | unsigned long bridge_max_age; |
| 237 | unsigned long ageing_time; |
| 238 | unsigned long bridge_hello_time; |
| 239 | unsigned long bridge_forward_delay; |
| 240 | |
Stephen Hemminger | fda93d9 | 2006-03-20 22:59:21 -0800 | [diff] [blame] | 241 | u8 group_addr[ETH_ALEN]; |
Toshiaki Makita | 204177f | 2014-06-10 20:59:25 +0900 | [diff] [blame] | 242 | bool group_addr_set; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | u16 root_port; |
Stephen Hemminger | 9cde070 | 2007-03-21 14:22:44 -0700 | [diff] [blame] | 244 | |
| 245 | enum { |
| 246 | BR_NO_STP, /* no spanning tree */ |
| 247 | BR_KERNEL_STP, /* old STP in kernel */ |
| 248 | BR_USER_STP, /* new RSTP in userspace */ |
| 249 | } stp_enabled; |
| 250 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | unsigned char topology_change; |
| 252 | unsigned char topology_change_detected; |
| 253 | |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 254 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| 255 | unsigned char multicast_router; |
| 256 | |
| 257 | u8 multicast_disabled:1; |
Herbert Xu | c5c2326 | 2012-04-13 02:37:42 +0000 | [diff] [blame] | 258 | u8 multicast_querier:1; |
Cong Wang | 1c8ad5b | 2013-05-21 21:52:54 +0000 | [diff] [blame] | 259 | u8 multicast_query_use_ifaddr:1; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 260 | |
| 261 | u32 hash_elasticity; |
| 262 | u32 hash_max; |
| 263 | |
| 264 | u32 multicast_last_member_count; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 265 | u32 multicast_startup_query_count; |
| 266 | |
| 267 | unsigned long multicast_last_member_interval; |
| 268 | unsigned long multicast_membership_interval; |
| 269 | unsigned long multicast_querier_interval; |
| 270 | unsigned long multicast_query_interval; |
| 271 | unsigned long multicast_query_response_interval; |
| 272 | unsigned long multicast_startup_query_interval; |
| 273 | |
| 274 | spinlock_t multicast_lock; |
Eric Dumazet | e805168 | 2010-11-15 06:38:10 +0000 | [diff] [blame] | 275 | struct net_bridge_mdb_htable __rcu *mdb; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 276 | struct hlist_head router_list; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 277 | |
| 278 | struct timer_list multicast_router_timer; |
Linus Lüssing | 90010b3 | 2014-06-07 18:26:26 +0200 | [diff] [blame] | 279 | struct bridge_mcast_other_query ip4_other_query; |
| 280 | struct bridge_mcast_own_query ip4_own_query; |
Linus Lüssing | dc4eb53 | 2014-06-07 18:26:27 +0200 | [diff] [blame] | 281 | struct bridge_mcast_querier ip4_querier; |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 282 | #if IS_ENABLED(CONFIG_IPV6) |
Linus Lüssing | 90010b3 | 2014-06-07 18:26:26 +0200 | [diff] [blame] | 283 | struct bridge_mcast_other_query ip6_other_query; |
| 284 | struct bridge_mcast_own_query ip6_own_query; |
Linus Lüssing | dc4eb53 | 2014-06-07 18:26:27 +0200 | [diff] [blame] | 285 | struct bridge_mcast_querier ip6_querier; |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 286 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 287 | #endif |
| 288 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | struct timer_list hello_timer; |
| 290 | struct timer_list tcn_timer; |
| 291 | struct timer_list topology_change_timer; |
| 292 | struct timer_list gc_timer; |
Greg Kroah-Hartman | 43b98c4 | 2007-12-17 15:54:39 -0400 | [diff] [blame] | 293 | struct kobject *ifobj; |
Vlad Yasevich | e028e4b | 2014-05-16 09:59:16 -0400 | [diff] [blame] | 294 | u32 auto_cnt; |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 295 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
| 296 | u8 vlan_enabled; |
Toshiaki Makita | 8580e21 | 2014-06-10 20:59:23 +0900 | [diff] [blame] | 297 | __be16 vlan_proto; |
Vlad Yasevich | 96a20d9 | 2014-10-03 11:29:16 -0400 | [diff] [blame] | 298 | u16 default_pvid; |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 299 | struct net_port_vlans __rcu *vlan_info; |
| 300 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | }; |
| 302 | |
Herbert Xu | 68b7c89 | 2010-02-27 19:41:40 +0000 | [diff] [blame] | 303 | struct br_input_skb_cb { |
| 304 | struct net_device *brdev; |
Herbert Xu | 93fdd47 | 2014-10-05 12:00:22 +0800 | [diff] [blame] | 305 | |
YOSHIFUJI Hideaki / 吉藤英明 | 32dec5d | 2010-03-15 21:51:18 +0000 | [diff] [blame] | 306 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 307 | int igmp; |
| 308 | int mrouters_only; |
YOSHIFUJI Hideaki / 吉藤英明 | 32dec5d | 2010-03-15 21:51:18 +0000 | [diff] [blame] | 309 | #endif |
Herbert Xu | 93fdd47 | 2014-10-05 12:00:22 +0800 | [diff] [blame] | 310 | |
Jouni Malinen | 842a9ae | 2015-03-04 12:54:21 +0200 | [diff] [blame] | 311 | bool proxyarp_replied; |
Herbert Xu | 93fdd47 | 2014-10-05 12:00:22 +0800 | [diff] [blame] | 312 | |
Vlad Yasevich | 20adfa1 | 2014-09-12 16:26:16 -0400 | [diff] [blame] | 313 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
| 314 | bool vlan_filtered; |
| 315 | #endif |
Herbert Xu | 68b7c89 | 2010-02-27 19:41:40 +0000 | [diff] [blame] | 316 | }; |
| 317 | |
| 318 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) |
| 319 | |
YOSHIFUJI Hideaki / 吉藤英明 | 32dec5d | 2010-03-15 21:51:18 +0000 | [diff] [blame] | 320 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
| 321 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) |
| 322 | #else |
| 323 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) |
| 324 | #endif |
| 325 | |
stephen hemminger | 28a16c9 | 2010-05-10 09:31:09 +0000 | [diff] [blame] | 326 | #define br_printk(level, br, format, args...) \ |
| 327 | printk(level "%s: " format, (br)->dev->name, ##args) |
| 328 | |
| 329 | #define br_err(__br, format, args...) \ |
| 330 | br_printk(KERN_ERR, __br, format, ##args) |
| 331 | #define br_warn(__br, format, args...) \ |
| 332 | br_printk(KERN_WARNING, __br, format, ##args) |
| 333 | #define br_notice(__br, format, args...) \ |
| 334 | br_printk(KERN_NOTICE, __br, format, ##args) |
| 335 | #define br_info(__br, format, args...) \ |
| 336 | br_printk(KERN_INFO, __br, format, ##args) |
| 337 | |
| 338 | #define br_debug(br, format, args...) \ |
| 339 | pr_debug("%s: " format, (br)->dev->name, ##args) |
| 340 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | /* called under bridge lock */ |
| 342 | static inline int br_is_root_bridge(const struct net_bridge *br) |
| 343 | { |
| 344 | return !memcmp(&br->bridge_id, &br->designated_root, 8); |
| 345 | } |
| 346 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | /* br_device.c */ |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 348 | void br_dev_setup(struct net_device *dev); |
| 349 | void br_dev_delete(struct net_device *dev, struct list_head *list); |
| 350 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); |
stephen hemminger | cfb478d | 2010-05-10 09:31:08 +0000 | [diff] [blame] | 351 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 352 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
| 353 | struct sk_buff *skb) |
| 354 | { |
| 355 | struct netpoll *np = p->np; |
| 356 | |
| 357 | if (np) |
| 358 | netpoll_send_skb(np, skb); |
| 359 | } |
| 360 | |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 361 | int br_netpoll_enable(struct net_bridge_port *p); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 362 | void br_netpoll_disable(struct net_bridge_port *p); |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 363 | #else |
Herbert Xu | 9f70b0f | 2010-06-15 21:43:48 -0700 | [diff] [blame] | 364 | 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] | 365 | struct sk_buff *skb) |
| 366 | { |
| 367 | } |
| 368 | |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 369 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 370 | { |
| 371 | return 0; |
| 372 | } |
| 373 | |
| 374 | static inline void br_netpoll_disable(struct net_bridge_port *p) |
| 375 | { |
| 376 | } |
stephen hemminger | cfb478d | 2010-05-10 09:31:08 +0000 | [diff] [blame] | 377 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | |
| 379 | /* br_fdb.c */ |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 380 | int br_fdb_init(void); |
| 381 | void br_fdb_fini(void); |
| 382 | void br_fdb_flush(struct net_bridge *br); |
Toshiaki Makita | 424bb9c | 2014-02-07 16:48:25 +0900 | [diff] [blame] | 383 | void br_fdb_find_delete_local(struct net_bridge *br, |
| 384 | const struct net_bridge_port *p, |
| 385 | const unsigned char *addr, u16 vid); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 386 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
| 387 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); |
| 388 | void br_fdb_cleanup(unsigned long arg); |
| 389 | void br_fdb_delete_by_port(struct net_bridge *br, |
Nikolay Aleksandrov | 1ea2d02 | 2015-06-23 05:28:16 -0700 | [diff] [blame] | 390 | const struct net_bridge_port *p, u16 vid, int do_all); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 391 | struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, |
| 392 | const unsigned char *addr, __u16 vid); |
| 393 | int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); |
| 394 | int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, |
| 395 | unsigned long off); |
| 396 | int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, |
| 397 | const unsigned char *addr, u16 vid); |
| 398 | void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, |
Toshiaki Makita | a5642ab | 2014-02-07 16:48:18 +0900 | [diff] [blame] | 399 | const unsigned char *addr, u16 vid, bool added_by_user); |
John Fastabend | 7716202 | 2012-04-15 06:43:56 +0000 | [diff] [blame] | 400 | |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 401 | int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], |
Jiri Pirko | f6f6424 | 2014-11-28 14:34:15 +0100 | [diff] [blame] | 402 | struct net_device *dev, const unsigned char *addr, u16 vid); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 403 | int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, |
Jiri Pirko | f6f6424 | 2014-11-28 14:34:15 +0100 | [diff] [blame] | 404 | const unsigned char *addr, u16 vid, u16 nlh_flags); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 405 | int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, |
Jamal Hadi Salim | 5d5eacb | 2014-07-10 07:01:58 -0400 | [diff] [blame] | 406 | struct net_device *dev, struct net_device *fdev, int idx); |
Vlad Yasevich | 8db24af | 2014-05-16 09:59:17 -0400 | [diff] [blame] | 407 | int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); |
| 408 | void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); |
Jiri Pirko | 3aeb661 | 2015-01-15 23:49:37 +0100 | [diff] [blame] | 409 | int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, |
| 410 | const unsigned char *addr, u16 vid); |
| 411 | int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, |
| 412 | const unsigned char *addr, u16 vid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | |
| 414 | /* br_forward.c */ |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 415 | void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); |
David Miller | 7026b1d | 2015-04-05 22:19:04 -0400 | [diff] [blame] | 416 | int br_dev_queue_push_xmit(struct sock *sk, struct sk_buff *skb); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 417 | void br_forward(const struct net_bridge_port *to, |
Michael Braun | 7f7708f | 2010-03-16 00:26:22 -0700 | [diff] [blame] | 418 | struct sk_buff *skb, struct sk_buff *skb0); |
David Miller | 7026b1d | 2015-04-05 22:19:04 -0400 | [diff] [blame] | 419 | int br_forward_finish(struct sock *sk, struct sk_buff *skb); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 420 | void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); |
| 421 | void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, |
| 422 | struct sk_buff *skb2, bool unicast); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | |
| 424 | /* br_if.c */ |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 425 | void br_port_carrier_check(struct net_bridge_port *p); |
| 426 | int br_add_bridge(struct net *net, const char *name); |
| 427 | int br_del_bridge(struct net *net, const char *name); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 428 | int br_add_if(struct net_bridge *br, struct net_device *dev); |
| 429 | int br_del_if(struct net_bridge *br, struct net_device *dev); |
| 430 | int br_min_mtu(const struct net_bridge *br); |
| 431 | netdev_features_t br_features_recompute(struct net_bridge *br, |
| 432 | netdev_features_t features); |
Vlad Yasevich | e028e4b | 2014-05-16 09:59:16 -0400 | [diff] [blame] | 433 | void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); |
Vlad Yasevich | 2796d0c | 2014-05-16 09:59:20 -0400 | [diff] [blame] | 434 | void br_manage_promisc(struct net_bridge *br); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | |
| 436 | /* br_input.c */ |
David Miller | 7026b1d | 2015-04-05 22:19:04 -0400 | [diff] [blame] | 437 | int br_handle_frame_finish(struct sock *sk, struct sk_buff *skb); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 438 | rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | |
Jiri Pirko | 859828c | 2013-12-05 16:27:37 +0100 | [diff] [blame] | 440 | static inline bool br_rx_handler_check_rcu(const struct net_device *dev) |
| 441 | { |
| 442 | return rcu_dereference(dev->rx_handler) == br_handle_frame; |
| 443 | } |
| 444 | |
| 445 | static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) |
| 446 | { |
| 447 | return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; |
| 448 | } |
| 449 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | /* br_ioctl.c */ |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 451 | int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
| 452 | int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, |
| 453 | void __user *arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 455 | /* br_multicast.c */ |
| 456 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
Cong Wang | 2ce297f | 2012-12-10 02:15:35 +0000 | [diff] [blame] | 457 | extern unsigned int br_mdb_rehash_seq; |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 458 | int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, |
David S. Miller | 394efd1 | 2013-11-04 13:48:30 -0500 | [diff] [blame] | 459 | struct sk_buff *skb, u16 vid); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 460 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
| 461 | struct sk_buff *skb, u16 vid); |
| 462 | void br_multicast_add_port(struct net_bridge_port *port); |
| 463 | void br_multicast_del_port(struct net_bridge_port *port); |
| 464 | void br_multicast_enable_port(struct net_bridge_port *port); |
| 465 | void br_multicast_disable_port(struct net_bridge_port *port); |
| 466 | void br_multicast_init(struct net_bridge *br); |
| 467 | void br_multicast_open(struct net_bridge *br); |
| 468 | void br_multicast_stop(struct net_bridge *br); |
| 469 | void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, |
| 470 | struct sk_buff *skb); |
| 471 | void br_multicast_forward(struct net_bridge_mdb_entry *mdst, |
| 472 | struct sk_buff *skb, struct sk_buff *skb2); |
| 473 | int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
| 474 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); |
| 475 | int br_multicast_toggle(struct net_bridge *br, unsigned long val); |
| 476 | int br_multicast_set_querier(struct net_bridge *br, unsigned long val); |
| 477 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); |
| 478 | struct net_bridge_mdb_entry * |
| 479 | br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); |
| 480 | struct net_bridge_mdb_entry * |
| 481 | br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, |
| 482 | struct br_ip *group); |
| 483 | void br_multicast_free_pg(struct rcu_head *head); |
| 484 | struct net_bridge_port_group * |
| 485 | br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, |
| 486 | struct net_bridge_port_group __rcu *next, |
| 487 | unsigned char state); |
| 488 | void br_mdb_init(void); |
| 489 | void br_mdb_uninit(void); |
| 490 | void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
| 491 | struct br_ip *group, int type); |
Sridhar Samudrala | 85b3526 | 2010-03-01 09:53:04 +0000 | [diff] [blame] | 492 | |
Cong Wang | cfd5675 | 2012-12-11 22:23:08 +0000 | [diff] [blame] | 493 | #define mlock_dereference(X, br) \ |
| 494 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) |
| 495 | |
Sridhar Samudrala | 85b3526 | 2010-03-01 09:53:04 +0000 | [diff] [blame] | 496 | static inline bool br_multicast_is_router(struct net_bridge *br) |
| 497 | { |
| 498 | return br->multicast_router == 2 || |
| 499 | (br->multicast_router == 1 && |
| 500 | timer_pending(&br->multicast_router_timer)); |
| 501 | } |
Linus Lüssing | b00589a | 2013-08-01 01:06:20 +0200 | [diff] [blame] | 502 | |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 503 | static inline bool |
| 504 | __br_multicast_querier_exists(struct net_bridge *br, |
Linus Lüssing | 90010b3 | 2014-06-07 18:26:26 +0200 | [diff] [blame] | 505 | struct bridge_mcast_other_query *querier) |
Linus Lüssing | b00589a | 2013-08-01 01:06:20 +0200 | [diff] [blame] | 506 | { |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 507 | return time_is_before_jiffies(querier->delay_time) && |
| 508 | (br->multicast_querier || timer_pending(&querier->timer)); |
| 509 | } |
| 510 | |
| 511 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
| 512 | struct ethhdr *eth) |
| 513 | { |
| 514 | switch (eth->h_proto) { |
| 515 | case (htons(ETH_P_IP)): |
Linus Lüssing | 90010b3 | 2014-06-07 18:26:26 +0200 | [diff] [blame] | 516 | return __br_multicast_querier_exists(br, &br->ip4_other_query); |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 517 | #if IS_ENABLED(CONFIG_IPV6) |
| 518 | case (htons(ETH_P_IPV6)): |
Linus Lüssing | 90010b3 | 2014-06-07 18:26:26 +0200 | [diff] [blame] | 519 | return __br_multicast_querier_exists(br, &br->ip6_other_query); |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 520 | #endif |
| 521 | default: |
| 522 | return false; |
| 523 | } |
Linus Lüssing | b00589a | 2013-08-01 01:06:20 +0200 | [diff] [blame] | 524 | } |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 525 | #else |
| 526 | static inline int br_multicast_rcv(struct net_bridge *br, |
| 527 | struct net_bridge_port *port, |
Vlad Yasevich | 0649909 | 2013-10-28 15:45:07 -0400 | [diff] [blame] | 528 | struct sk_buff *skb, |
| 529 | u16 vid) |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 530 | { |
| 531 | return 0; |
| 532 | } |
| 533 | |
| 534 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
Cong Wang | fbca58a | 2013-03-07 03:05:33 +0000 | [diff] [blame] | 535 | struct sk_buff *skb, u16 vid) |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 536 | { |
| 537 | return NULL; |
| 538 | } |
| 539 | |
| 540 | static inline void br_multicast_add_port(struct net_bridge_port *port) |
| 541 | { |
| 542 | } |
| 543 | |
| 544 | static inline void br_multicast_del_port(struct net_bridge_port *port) |
| 545 | { |
| 546 | } |
| 547 | |
| 548 | static inline void br_multicast_enable_port(struct net_bridge_port *port) |
| 549 | { |
| 550 | } |
| 551 | |
| 552 | static inline void br_multicast_disable_port(struct net_bridge_port *port) |
| 553 | { |
| 554 | } |
| 555 | |
| 556 | static inline void br_multicast_init(struct net_bridge *br) |
| 557 | { |
| 558 | } |
| 559 | |
| 560 | static inline void br_multicast_open(struct net_bridge *br) |
| 561 | { |
| 562 | } |
| 563 | |
| 564 | static inline void br_multicast_stop(struct net_bridge *br) |
| 565 | { |
| 566 | } |
Herbert Xu | 5cb5e94 | 2010-02-27 19:41:46 +0000 | [diff] [blame] | 567 | |
| 568 | static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, |
| 569 | struct sk_buff *skb) |
| 570 | { |
| 571 | } |
| 572 | |
| 573 | static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, |
| 574 | struct sk_buff *skb, |
| 575 | struct sk_buff *skb2) |
| 576 | { |
| 577 | } |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 578 | static inline bool br_multicast_is_router(struct net_bridge *br) |
| 579 | { |
Sridhar Samudrala | 85b3526 | 2010-03-01 09:53:04 +0000 | [diff] [blame] | 580 | return 0; |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 581 | } |
Linus Lüssing | cc0fdd8 | 2013-08-30 17:28:17 +0200 | [diff] [blame] | 582 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
| 583 | struct ethhdr *eth) |
Linus Lüssing | b00589a | 2013-08-01 01:06:20 +0200 | [diff] [blame] | 584 | { |
| 585 | return false; |
| 586 | } |
Rami Rosen | fdb184d | 2013-01-03 13:30:43 +0200 | [diff] [blame] | 587 | static inline void br_mdb_init(void) |
| 588 | { |
| 589 | } |
| 590 | static inline void br_mdb_uninit(void) |
| 591 | { |
| 592 | } |
Sridhar Samudrala | 85b3526 | 2010-03-01 09:53:04 +0000 | [diff] [blame] | 593 | #endif |
Herbert Xu | eb1d164 | 2010-02-27 19:41:45 +0000 | [diff] [blame] | 594 | |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 595 | /* br_vlan.c */ |
| 596 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 597 | bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, |
| 598 | struct sk_buff *skb, u16 *vid); |
| 599 | bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v, |
| 600 | const struct sk_buff *skb); |
Toshiaki Makita | e0d7968 | 2014-05-26 15:15:53 +0900 | [diff] [blame] | 601 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 602 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
| 603 | const struct net_port_vlans *v, |
| 604 | struct sk_buff *skb); |
| 605 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); |
| 606 | int br_vlan_delete(struct net_bridge *br, u16 vid); |
| 607 | void br_vlan_flush(struct net_bridge *br); |
Toshiaki Makita | 2b292fb | 2014-02-07 16:48:22 +0900 | [diff] [blame] | 608 | bool br_vlan_find(struct net_bridge *br, u16 vid); |
Toshiaki Makita | 204177f | 2014-06-10 20:59:25 +0900 | [diff] [blame] | 609 | void br_recalculate_fwd_mask(struct net_bridge *br); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 610 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
Toshiaki Makita | 204177f | 2014-06-10 20:59:25 +0900 | [diff] [blame] | 611 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
Vlad Yasevich | 5be5a2d | 2014-10-03 11:29:18 -0400 | [diff] [blame] | 612 | int br_vlan_init(struct net_bridge *br); |
Vlad Yasevich | 96a20d9 | 2014-10-03 11:29:16 -0400 | [diff] [blame] | 613 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 614 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); |
| 615 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); |
| 616 | void nbp_vlan_flush(struct net_bridge_port *port); |
| 617 | bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); |
Vlad Yasevich | 5be5a2d | 2014-10-03 11:29:18 -0400 | [diff] [blame] | 618 | int nbp_vlan_init(struct net_bridge_port *port); |
Vlad Yasevich | a37b85c | 2013-02-13 12:00:10 +0000 | [diff] [blame] | 619 | |
| 620 | static inline struct net_port_vlans *br_get_vlan_info( |
| 621 | const struct net_bridge *br) |
| 622 | { |
Vlad Yasevich | 1690be6 | 2013-02-13 12:00:18 +0000 | [diff] [blame] | 623 | return rcu_dereference_rtnl(br->vlan_info); |
Vlad Yasevich | a37b85c | 2013-02-13 12:00:10 +0000 | [diff] [blame] | 624 | } |
| 625 | |
| 626 | static inline struct net_port_vlans *nbp_get_vlan_info( |
| 627 | const struct net_bridge_port *p) |
| 628 | { |
Vlad Yasevich | 1690be6 | 2013-02-13 12:00:18 +0000 | [diff] [blame] | 629 | return rcu_dereference_rtnl(p->vlan_info); |
Vlad Yasevich | a37b85c | 2013-02-13 12:00:10 +0000 | [diff] [blame] | 630 | } |
| 631 | |
| 632 | /* Since bridge now depends on 8021Q module, but the time bridge sees the |
| 633 | * skb, the vlan tag will always be present if the frame was tagged. |
| 634 | */ |
| 635 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) |
| 636 | { |
| 637 | int err = 0; |
| 638 | |
Jiri Pirko | df8a39d | 2015-01-13 17:13:44 +0100 | [diff] [blame] | 639 | if (skb_vlan_tag_present(skb)) |
| 640 | *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; |
Vlad Yasevich | a37b85c | 2013-02-13 12:00:10 +0000 | [diff] [blame] | 641 | else { |
| 642 | *vid = 0; |
| 643 | err = -EINVAL; |
| 644 | } |
| 645 | |
| 646 | return err; |
| 647 | } |
Vlad Yasevich | 7885198 | 2013-02-13 12:00:14 +0000 | [diff] [blame] | 648 | |
| 649 | static inline u16 br_get_pvid(const struct net_port_vlans *v) |
| 650 | { |
Vlad Yasevich | 5be5a2d | 2014-10-03 11:29:18 -0400 | [diff] [blame] | 651 | if (!v) |
| 652 | return 0; |
| 653 | |
Vlad Yasevich | 7885198 | 2013-02-13 12:00:14 +0000 | [diff] [blame] | 654 | smp_rmb(); |
Vlad Yasevich | 3df6bf4 | 2014-10-03 11:29:17 -0400 | [diff] [blame] | 655 | return v->pvid; |
Vlad Yasevich | 7885198 | 2013-02-13 12:00:14 +0000 | [diff] [blame] | 656 | } |
| 657 | |
Vlad Yasevich | 2796d0c | 2014-05-16 09:59:20 -0400 | [diff] [blame] | 658 | static inline int br_vlan_enabled(struct net_bridge *br) |
| 659 | { |
| 660 | return br->vlan_enabled; |
| 661 | } |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 662 | #else |
Vlad Yasevich | a37b85c | 2013-02-13 12:00:10 +0000 | [diff] [blame] | 663 | static inline bool br_allowed_ingress(struct net_bridge *br, |
| 664 | struct net_port_vlans *v, |
Vlad Yasevich | 7885198 | 2013-02-13 12:00:14 +0000 | [diff] [blame] | 665 | struct sk_buff *skb, |
| 666 | u16 *vid) |
Vlad Yasevich | a37b85c | 2013-02-13 12:00:10 +0000 | [diff] [blame] | 667 | { |
| 668 | return true; |
| 669 | } |
| 670 | |
Vlad Yasevich | 85f46c6 | 2013-02-13 12:00:11 +0000 | [diff] [blame] | 671 | static inline bool br_allowed_egress(struct net_bridge *br, |
| 672 | const struct net_port_vlans *v, |
| 673 | const struct sk_buff *skb) |
| 674 | { |
| 675 | return true; |
| 676 | } |
| 677 | |
Toshiaki Makita | e0d7968 | 2014-05-26 15:15:53 +0900 | [diff] [blame] | 678 | static inline bool br_should_learn(struct net_bridge_port *p, |
| 679 | struct sk_buff *skb, u16 *vid) |
| 680 | { |
| 681 | return true; |
| 682 | } |
| 683 | |
Vlad Yasevich | 7885198 | 2013-02-13 12:00:14 +0000 | [diff] [blame] | 684 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
| 685 | const struct net_port_vlans *v, |
| 686 | struct sk_buff *skb) |
| 687 | { |
| 688 | return skb; |
| 689 | } |
| 690 | |
Vlad Yasevich | 552406c | 2013-02-13 12:00:15 +0000 | [diff] [blame] | 691 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 692 | { |
| 693 | return -EOPNOTSUPP; |
| 694 | } |
| 695 | |
| 696 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) |
| 697 | { |
| 698 | return -EOPNOTSUPP; |
| 699 | } |
| 700 | |
| 701 | static inline void br_vlan_flush(struct net_bridge *br) |
| 702 | { |
| 703 | } |
| 704 | |
Toshiaki Makita | 2b292fb | 2014-02-07 16:48:22 +0900 | [diff] [blame] | 705 | static inline bool br_vlan_find(struct net_bridge *br, u16 vid) |
| 706 | { |
| 707 | return false; |
| 708 | } |
| 709 | |
Toshiaki Makita | 204177f | 2014-06-10 20:59:25 +0900 | [diff] [blame] | 710 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
| 711 | { |
| 712 | } |
| 713 | |
Vlad Yasevich | 5be5a2d | 2014-10-03 11:29:18 -0400 | [diff] [blame] | 714 | static inline int br_vlan_init(struct net_bridge *br) |
Toshiaki Makita | 8580e21 | 2014-06-10 20:59:23 +0900 | [diff] [blame] | 715 | { |
Vlad Yasevich | 5be5a2d | 2014-10-03 11:29:18 -0400 | [diff] [blame] | 716 | return 0; |
Toshiaki Makita | 8580e21 | 2014-06-10 20:59:23 +0900 | [diff] [blame] | 717 | } |
| 718 | |
Vlad Yasevich | 552406c | 2013-02-13 12:00:15 +0000 | [diff] [blame] | 719 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 720 | { |
| 721 | return -EOPNOTSUPP; |
| 722 | } |
| 723 | |
| 724 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) |
| 725 | { |
| 726 | return -EOPNOTSUPP; |
| 727 | } |
| 728 | |
| 729 | static inline void nbp_vlan_flush(struct net_bridge_port *port) |
| 730 | { |
| 731 | } |
| 732 | |
Vlad Yasevich | a37b85c | 2013-02-13 12:00:10 +0000 | [diff] [blame] | 733 | static inline struct net_port_vlans *br_get_vlan_info( |
| 734 | const struct net_bridge *br) |
| 735 | { |
| 736 | return NULL; |
| 737 | } |
| 738 | static inline struct net_port_vlans *nbp_get_vlan_info( |
| 739 | const struct net_bridge_port *p) |
| 740 | { |
| 741 | return NULL; |
| 742 | } |
| 743 | |
Vlad Yasevich | bc9a25d | 2013-02-13 12:00:19 +0000 | [diff] [blame] | 744 | static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) |
| 745 | { |
| 746 | return false; |
| 747 | } |
| 748 | |
Vlad Yasevich | 5be5a2d | 2014-10-03 11:29:18 -0400 | [diff] [blame] | 749 | static inline int nbp_vlan_init(struct net_bridge_port *port) |
| 750 | { |
| 751 | return 0; |
| 752 | } |
| 753 | |
Vlad Yasevich | 7885198 | 2013-02-13 12:00:14 +0000 | [diff] [blame] | 754 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
Vlad Yasevich | a37b85c | 2013-02-13 12:00:10 +0000 | [diff] [blame] | 755 | { |
| 756 | return 0; |
| 757 | } |
Vlad Yasevich | 7885198 | 2013-02-13 12:00:14 +0000 | [diff] [blame] | 758 | static inline u16 br_get_pvid(const struct net_port_vlans *v) |
| 759 | { |
Vlad Yasevich | 3df6bf4 | 2014-10-03 11:29:17 -0400 | [diff] [blame] | 760 | return 0; |
Vlad Yasevich | 7885198 | 2013-02-13 12:00:14 +0000 | [diff] [blame] | 761 | } |
Vlad Yasevich | 2796d0c | 2014-05-16 09:59:20 -0400 | [diff] [blame] | 762 | |
Alexei Starovoitov | d4f0e09 | 2014-05-18 10:30:28 -0700 | [diff] [blame] | 763 | static inline int br_vlan_enabled(struct net_bridge *br) |
Vlad Yasevich | 2796d0c | 2014-05-16 09:59:20 -0400 | [diff] [blame] | 764 | { |
| 765 | return 0; |
| 766 | } |
Vlad Yasevich | 243a2e6 | 2013-02-13 12:00:09 +0000 | [diff] [blame] | 767 | #endif |
| 768 | |
Pablo Neira Ayuso | 1a4ba64 | 2015-03-10 10:27:18 +0100 | [diff] [blame] | 769 | struct nf_br_ops { |
| 770 | int (*br_dev_xmit_hook)(struct sk_buff *skb); |
| 771 | }; |
| 772 | extern const struct nf_br_ops __rcu *nf_br_ops; |
| 773 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | /* br_netfilter.c */ |
Pablo Neira Ayuso | 34666d4 | 2014-09-18 11:29:03 +0200 | [diff] [blame] | 775 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
| 776 | int br_nf_core_init(void); |
| 777 | void br_nf_core_fini(void); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 778 | void br_netfilter_rtable_init(struct net_bridge *); |
Stephen Hemminger | c090971 | 2006-05-25 15:59:33 -0700 | [diff] [blame] | 779 | #else |
Pablo Neira Ayuso | 34666d4 | 2014-09-18 11:29:03 +0200 | [diff] [blame] | 780 | static inline int br_nf_core_init(void) { return 0; } |
| 781 | static inline void br_nf_core_fini(void) {} |
Simon Wunderlich | 4adf0af | 2008-07-30 16:27:55 -0700 | [diff] [blame] | 782 | #define br_netfilter_rtable_init(x) |
Stephen Hemminger | c090971 | 2006-05-25 15:59:33 -0700 | [diff] [blame] | 783 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | |
| 785 | /* br_stp.c */ |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 786 | void br_log_state(const struct net_bridge_port *p); |
Florian Fainelli | 775dd69 | 2014-09-30 16:13:19 -0700 | [diff] [blame] | 787 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 788 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
| 789 | void br_init_port(struct net_bridge_port *p); |
| 790 | void br_become_designated_port(struct net_bridge_port *p); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 792 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
| 793 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); |
| 794 | int br_set_hello_time(struct net_bridge *br, unsigned long x); |
| 795 | int br_set_max_age(struct net_bridge *br, unsigned long x); |
stephen hemminger | 14f98f2 | 2011-04-04 14:03:33 +0000 | [diff] [blame] | 796 | |
| 797 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 798 | /* br_stp_if.c */ |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 799 | void br_stp_enable_bridge(struct net_bridge *br); |
| 800 | void br_stp_disable_bridge(struct net_bridge *br); |
| 801 | void br_stp_set_enabled(struct net_bridge *br, unsigned long val); |
| 802 | void br_stp_enable_port(struct net_bridge_port *p); |
| 803 | void br_stp_disable_port(struct net_bridge_port *p); |
| 804 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); |
| 805 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); |
| 806 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); |
| 807 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); |
| 808 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); |
| 809 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | |
| 811 | /* br_stp_bpdu.c */ |
Patrick McHardy | 7c85fbf | 2008-07-05 21:25:56 -0700 | [diff] [blame] | 812 | struct stp_proto; |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 813 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
| 814 | struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | |
| 816 | /* br_stp_timer.c */ |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 817 | void br_stp_timer_init(struct net_bridge *br); |
| 818 | void br_stp_port_timer_init(struct net_bridge_port *p); |
| 819 | unsigned long br_timer_value(const struct timer_list *timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | |
| 821 | /* br.c */ |
Igor Maravić | e6373c4 | 2011-12-12 02:58:25 +0000 | [diff] [blame] | 822 | #if IS_ENABLED(CONFIG_ATM_LANE) |
Michał Mirosław | da67829 | 2009-06-05 05:35:28 +0000 | [diff] [blame] | 823 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
| 824 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | |
Stephen Hemminger | 11dc1f3 | 2006-05-25 16:00:12 -0700 | [diff] [blame] | 826 | /* br_netlink.c */ |
stephen hemminger | 149ddd8 | 2012-06-26 05:48:45 +0000 | [diff] [blame] | 827 | extern struct rtnl_link_ops br_link_ops; |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 828 | int br_netlink_init(void); |
| 829 | void br_netlink_fini(void); |
| 830 | void br_ifinfo_notify(int event, struct net_bridge_port *port); |
Roopa Prabhu | add511b | 2015-01-29 22:40:12 -0800 | [diff] [blame] | 831 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
| 832 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 833 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
Nicolas Dichtel | 46c264d | 2015-04-28 18:33:49 +0200 | [diff] [blame] | 834 | u32 filter_mask, int nlflags); |
Stephen Hemminger | 11dc1f3 | 2006-05-25 16:00:12 -0700 | [diff] [blame] | 835 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | #ifdef CONFIG_SYSFS |
| 837 | /* br_sysfs_if.c */ |
Emese Revfy | 52cf25d | 2010-01-19 02:58:23 +0100 | [diff] [blame] | 838 | extern const struct sysfs_ops brport_sysfs_ops; |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 839 | int br_sysfs_addif(struct net_bridge_port *p); |
| 840 | int br_sysfs_renameif(struct net_bridge_port *p); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | |
| 842 | /* br_sysfs_br.c */ |
Joe Perches | 348662a | 2013-10-18 13:48:22 -0700 | [diff] [blame] | 843 | int br_sysfs_addbr(struct net_device *dev); |
| 844 | void br_sysfs_delbr(struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | |
| 846 | #else |
| 847 | |
Lee Jones | 0cb2bbb | 2012-11-03 23:02:30 +0100 | [diff] [blame] | 848 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
| 849 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } |
| 850 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } |
| 851 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | #endif /* CONFIG_SYSFS */ |
| 853 | |
| 854 | #endif |