12874c5fdSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * Linux ethernet bridge 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Authors: 61da177e4SLinus Torvalds * Lennert Buytenhek <buytenh@gnu.org> 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds #ifndef _BR_PRIVATE_H 101da177e4SLinus Torvalds #define _BR_PRIVATE_H 111da177e4SLinus Torvalds 121da177e4SLinus Torvalds #include <linux/netdevice.h> 131da177e4SLinus Torvalds #include <linux/if_bridge.h> 1491d2c34aSHerbert Xu #include <linux/netpoll.h> 15406818ffSEric Dumazet #include <linux/u64_stats_sync.h> 164adf0af6SSimon Wunderlich #include <net/route.h> 17efb6de9bSBernhard Thaler #include <net/ip6_fib.h> 187b4858dfSIdo Schimmel #include <net/pkt_cls.h> 19243a2e63SVlad Yasevich #include <linux/if_vlan.h> 202594e906SNikolay Aleksandrov #include <linux/rhashtable.h> 2125127759SReshetova, Elena #include <linux/refcount.h> 221da177e4SLinus Torvalds 231da177e4SLinus Torvalds #define BR_HASH_BITS 8 241da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds #define BR_PORT_BITS 10 291da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 301da177e4SLinus Torvalds 31d08c6bc0SNikolay Aleksandrov #define BR_MULTICAST_DEFAULT_HASH_MAX 4096 3299b40610SNikolay Aleksandrov #define BR_MULTICAST_QUERY_INTVL_MIN msecs_to_jiffies(1000) 33f83a112bSNikolay Aleksandrov #define BR_MULTICAST_STARTUP_QUERY_INTVL_MIN BR_MULTICAST_QUERY_INTVL_MIN 34d08c6bc0SNikolay Aleksandrov 3585826610STobias Waldekranz #define BR_HWDOM_MAX BITS_PER_LONG 3685826610STobias Waldekranz 379cde0708SStephen Hemminger #define BR_VERSION "2.3" 389cde0708SStephen Hemminger 39515853ccSstephen hemminger /* Control of forwarding link local multicast */ 40515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 41784b58a3SBernhard Thaler /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ 425af48b59SNikolay Aleksandrov enum { 435af48b59SNikolay Aleksandrov BR_GROUPFWD_STP = BIT(0), 445af48b59SNikolay Aleksandrov BR_GROUPFWD_MACPAUSE = BIT(1), 455af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP = BIT(2), 465af48b59SNikolay Aleksandrov }; 475af48b59SNikolay Aleksandrov 485af48b59SNikolay Aleksandrov #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ 495af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP) 50f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 51f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 52515853ccSstephen hemminger 539cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 549cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 558cbb512eSStephen Hemminger 5631cbc39bSNikolay Aleksandrov #define BR_FDB_NOTIFY_SETTABLE_BITS (FDB_NOTIFY_BIT | FDB_NOTIFY_INACTIVE_BIT) 5731cbc39bSNikolay Aleksandrov 581da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 591da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 601da177e4SLinus Torvalds typedef __u16 port_id; 611da177e4SLinus Torvalds 621c1cb6d0SNikolay Aleksandrov struct bridge_id { 631da177e4SLinus Torvalds unsigned char prio[2]; 64e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 651da177e4SLinus Torvalds }; 661da177e4SLinus Torvalds 671c1cb6d0SNikolay Aleksandrov struct mac_addr { 68e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 691da177e4SLinus Torvalds }; 701da177e4SLinus Torvalds 71cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 72cc0fdd80SLinus Lüssing /* our own querier */ 7390010b36SLinus Lüssing struct bridge_mcast_own_query { 74cc0fdd80SLinus Lüssing struct timer_list timer; 75cc0fdd80SLinus Lüssing u32 startup_sent; 76cc0fdd80SLinus Lüssing }; 77cc0fdd80SLinus Lüssing 78cc0fdd80SLinus Lüssing /* other querier */ 7990010b36SLinus Lüssing struct bridge_mcast_other_query { 80cc0fdd80SLinus Lüssing struct timer_list timer; 81cc0fdd80SLinus Lüssing unsigned long delay_time; 82cc0fdd80SLinus Lüssing }; 83dc4eb53aSLinus Lüssing 84dc4eb53aSLinus Lüssing /* selected querier */ 85dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 86dc4eb53aSLinus Lüssing struct br_ip addr; 87bb18ef8eSNikolay Aleksandrov int port_ifidx; 88f936bb42SThomas Gleixner seqcount_spinlock_t seq; 89dc4eb53aSLinus Lüssing }; 901080ab95SNikolay Aleksandrov 911080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 921080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 931080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 941080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 951080ab95SNikolay Aleksandrov }; 96cb453926SIdo Schimmel 97b1c8fec8SIdo Schimmel struct br_mdb_src_entry { 98b1c8fec8SIdo Schimmel struct br_ip addr; 99b1c8fec8SIdo Schimmel }; 100b1c8fec8SIdo Schimmel 101cb453926SIdo Schimmel struct br_mdb_config { 102cb453926SIdo Schimmel struct net_bridge *br; 103cb453926SIdo Schimmel struct net_bridge_port *p; 104cb453926SIdo Schimmel struct br_mdb_entry *entry; 105cb453926SIdo Schimmel struct br_ip group; 106079afd66SIdo Schimmel bool src_entry; 107b1c8fec8SIdo Schimmel u8 filter_mode; 10861f21835SIdo Schimmel u16 nlflags; 109b1c8fec8SIdo Schimmel struct br_mdb_src_entry *src_entries; 110b1c8fec8SIdo Schimmel int num_src_entries; 1111d7b66a7SIdo Schimmel u8 rt_protocol; 112cb453926SIdo Schimmel }; 113cc0fdd80SLinus Lüssing #endif 114cc0fdd80SLinus Lüssing 1159632233eSNikolay Aleksandrov /* net_bridge_mcast_port must be always defined due to forwarding stubs */ 1169632233eSNikolay Aleksandrov struct net_bridge_mcast_port { 1179632233eSNikolay Aleksandrov #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 1189632233eSNikolay Aleksandrov struct net_bridge_port *port; 119613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan; 1209632233eSNikolay Aleksandrov 1219632233eSNikolay Aleksandrov struct bridge_mcast_own_query ip4_own_query; 1229632233eSNikolay Aleksandrov struct timer_list ip4_mc_router_timer; 1239632233eSNikolay Aleksandrov struct hlist_node ip4_rlist; 1249632233eSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 1259632233eSNikolay Aleksandrov struct bridge_mcast_own_query ip6_own_query; 1269632233eSNikolay Aleksandrov struct timer_list ip6_mc_router_timer; 1279632233eSNikolay Aleksandrov struct hlist_node ip6_rlist; 1289632233eSNikolay Aleksandrov #endif /* IS_ENABLED(CONFIG_IPV6) */ 1299632233eSNikolay Aleksandrov unsigned char multicast_router; 130b57e8d87SPetr Machata u32 mdb_n_entries; 131b57e8d87SPetr Machata u32 mdb_max_entries; 1329632233eSNikolay Aleksandrov #endif /* CONFIG_BRIDGE_IGMP_SNOOPING */ 1339632233eSNikolay Aleksandrov }; 1349632233eSNikolay Aleksandrov 135d3d065c0SNikolay Aleksandrov /* net_bridge_mcast must be always defined due to forwarding stubs */ 136d3d065c0SNikolay Aleksandrov struct net_bridge_mcast { 137d3d065c0SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 138d3d065c0SNikolay Aleksandrov struct net_bridge *br; 139613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan; 140d3d065c0SNikolay Aleksandrov 141d3d065c0SNikolay Aleksandrov u32 multicast_last_member_count; 142d3d065c0SNikolay Aleksandrov u32 multicast_startup_query_count; 143d3d065c0SNikolay Aleksandrov 1444d5b4e84SNikolay Aleksandrov u8 multicast_querier; 145d3d065c0SNikolay Aleksandrov u8 multicast_igmp_version; 146d3d065c0SNikolay Aleksandrov u8 multicast_router; 147d3d065c0SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 148d3d065c0SNikolay Aleksandrov u8 multicast_mld_version; 149d3d065c0SNikolay Aleksandrov #endif 150d3d065c0SNikolay Aleksandrov unsigned long multicast_last_member_interval; 151d3d065c0SNikolay Aleksandrov unsigned long multicast_membership_interval; 152d3d065c0SNikolay Aleksandrov unsigned long multicast_querier_interval; 153d3d065c0SNikolay Aleksandrov unsigned long multicast_query_interval; 154d3d065c0SNikolay Aleksandrov unsigned long multicast_query_response_interval; 155d3d065c0SNikolay Aleksandrov unsigned long multicast_startup_query_interval; 156d3d065c0SNikolay Aleksandrov struct hlist_head ip4_mc_router_list; 157d3d065c0SNikolay Aleksandrov struct timer_list ip4_mc_router_timer; 158d3d065c0SNikolay Aleksandrov struct bridge_mcast_other_query ip4_other_query; 159d3d065c0SNikolay Aleksandrov struct bridge_mcast_own_query ip4_own_query; 160d3d065c0SNikolay Aleksandrov struct bridge_mcast_querier ip4_querier; 161d3d065c0SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 162d3d065c0SNikolay Aleksandrov struct hlist_head ip6_mc_router_list; 163d3d065c0SNikolay Aleksandrov struct timer_list ip6_mc_router_timer; 164d3d065c0SNikolay Aleksandrov struct bridge_mcast_other_query ip6_other_query; 165d3d065c0SNikolay Aleksandrov struct bridge_mcast_own_query ip6_own_query; 166d3d065c0SNikolay Aleksandrov struct bridge_mcast_querier ip6_querier; 167d3d065c0SNikolay Aleksandrov #endif /* IS_ENABLED(CONFIG_IPV6) */ 168d3d065c0SNikolay Aleksandrov #endif /* CONFIG_BRIDGE_IGMP_SNOOPING */ 169d3d065c0SNikolay Aleksandrov }; 170d3d065c0SNikolay Aleksandrov 171efa5356bSRoopa Prabhu struct br_tunnel_info { 172efa5356bSRoopa Prabhu __be64 tunnel_id; 17358e20717SNikolay Aleksandrov struct metadata_dst __rcu *tunnel_dst; 174efa5356bSRoopa Prabhu }; 175efa5356bSRoopa Prabhu 1769d332e69SNikolay Aleksandrov /* private vlan flags */ 1779d332e69SNikolay Aleksandrov enum { 1789d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 17927973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1807b54aaafSNikolay Aleksandrov BR_VLFLAG_MCAST_ENABLED = BIT(2), 1817b54aaafSNikolay Aleksandrov BR_VLFLAG_GLOBAL_MCAST_ENABLED = BIT(3), 182a714e3ecSIdo Schimmel BR_VLFLAG_NEIGH_SUPPRESS_ENABLED = BIT(4), 1839d332e69SNikolay Aleksandrov }; 1849d332e69SNikolay Aleksandrov 1852594e906SNikolay Aleksandrov /** 1862594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1872594e906SNikolay Aleksandrov * 1882594e906SNikolay Aleksandrov * @vnode: rhashtable member 1892594e906SNikolay Aleksandrov * @vid: VLAN id 1902594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1919d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 192a580c76dSNikolay Aleksandrov * @state: STP state (e.g. blocking, learning, forwarding) 1936dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1942594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1952594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1962594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1972594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1982594e906SNikolay Aleksandrov * for this VLAN entry 199613d61dbSNikolay Aleksandrov * @br_mcast_ctx: if MASTER flag set, this is the global vlan multicast context 200613d61dbSNikolay Aleksandrov * @port_mcast_ctx: if MASTER flag unset, this is the per-port/vlan multicast 201613d61dbSNikolay Aleksandrov * context 202ec7328b5STobias Waldekranz * @msti: if MASTER flag set, this holds the VLANs MST instance 2032594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 2042594e906SNikolay Aleksandrov * @rcu: used for entry destruction 2052594e906SNikolay Aleksandrov * 2062594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 2072594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 2082594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 2092594e906SNikolay Aleksandrov * the entry flags that are set. 2102594e906SNikolay Aleksandrov */ 2112594e906SNikolay Aleksandrov struct net_bridge_vlan { 2122594e906SNikolay Aleksandrov struct rhash_head vnode; 213efa5356bSRoopa Prabhu struct rhash_head tnode; 2142594e906SNikolay Aleksandrov u16 vid; 2152594e906SNikolay Aleksandrov u16 flags; 2169d332e69SNikolay Aleksandrov u16 priv_flags; 217a580c76dSNikolay Aleksandrov u8 state; 218281cc284SHeiner Kallweit struct pcpu_sw_netstats __percpu *stats; 219243a2e63SVlad Yasevich union { 220243a2e63SVlad Yasevich struct net_bridge *br; 2212594e906SNikolay Aleksandrov struct net_bridge_port *port; 2222594e906SNikolay Aleksandrov }; 2232594e906SNikolay Aleksandrov union { 22425127759SReshetova, Elena refcount_t refcnt; 2252594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 2262594e906SNikolay Aleksandrov }; 227efa5356bSRoopa Prabhu 228efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 229efa5356bSRoopa Prabhu 230613d61dbSNikolay Aleksandrov union { 231613d61dbSNikolay Aleksandrov struct net_bridge_mcast br_mcast_ctx; 232613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port port_mcast_ctx; 233613d61dbSNikolay Aleksandrov }; 234613d61dbSNikolay Aleksandrov 235ec7328b5STobias Waldekranz u16 msti; 236ec7328b5STobias Waldekranz 2372594e906SNikolay Aleksandrov struct list_head vlist; 2382594e906SNikolay Aleksandrov 239243a2e63SVlad Yasevich struct rcu_head rcu; 2402594e906SNikolay Aleksandrov }; 2412594e906SNikolay Aleksandrov 2422594e906SNikolay Aleksandrov /** 2432594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 2442594e906SNikolay Aleksandrov * 2452594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 2462594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 2472594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 24877751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 249a580c76dSNikolay Aleksandrov * @pvid_state: PVID's STP state (e.g. forwarding, learning, blocking) 2502594e906SNikolay Aleksandrov * 2512594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 2522594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 2532594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 2542594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 2552594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 2562594e906SNikolay Aleksandrov */ 2572594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 2582594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 259efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 2602594e906SNikolay Aleksandrov struct list_head vlan_list; 2616cbdceebSVlad Yasevich u16 num_vlans; 26277751ee8SNikolay Aleksandrov u16 pvid; 263a580c76dSNikolay Aleksandrov u8 pvid_state; 264243a2e63SVlad Yasevich }; 265243a2e63SVlad Yasevich 2666869c3b0SNikolay Aleksandrov /* bridge fdb flags */ 2676869c3b0SNikolay Aleksandrov enum { 2686869c3b0SNikolay Aleksandrov BR_FDB_LOCAL, 26929e63fffSNikolay Aleksandrov BR_FDB_STATIC, 270e0458d9aSNikolay Aleksandrov BR_FDB_STICKY, 271ac3ca6afSNikolay Aleksandrov BR_FDB_ADDED_BY_USER, 272b5cd9f7cSNikolay Aleksandrov BR_FDB_ADDED_BY_EXT_LEARN, 273d38c6e3dSNikolay Aleksandrov BR_FDB_OFFLOADED, 27431cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY, 275a35ec8e3SHans J. Schultz BR_FDB_NOTIFY_INACTIVE, 276a35ec8e3SHans J. Schultz BR_FDB_LOCKED, 2776869c3b0SNikolay Aleksandrov }; 2786869c3b0SNikolay Aleksandrov 279eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 280eb793583SNikolay Aleksandrov mac_addr addr; 281eb793583SNikolay Aleksandrov u16 vlan_id; 282eb793583SNikolay Aleksandrov }; 283eb793583SNikolay Aleksandrov 2841214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 285eb793583SNikolay Aleksandrov struct rhash_head rhnode; 2861da177e4SLinus Torvalds struct net_bridge_port *dst; 2871da177e4SLinus Torvalds 288eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 289eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 2906869c3b0SNikolay Aleksandrov unsigned long flags; 2911214628cSNikolay Aleksandrov 2921214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 2931214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 2941214628cSNikolay Aleksandrov unsigned long used; 2951214628cSNikolay Aleksandrov 296b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2971da177e4SLinus Torvalds }; 2981da177e4SLinus Torvalds 2991f78ee14SNikolay Aleksandrov struct net_bridge_fdb_flush_desc { 3001f78ee14SNikolay Aleksandrov unsigned long flags; 3011f78ee14SNikolay Aleksandrov unsigned long flags_mask; 3021f78ee14SNikolay Aleksandrov int port_ifindex; 3031f78ee14SNikolay Aleksandrov u16 vlan_id; 3041f78ee14SNikolay Aleksandrov }; 3051f78ee14SNikolay Aleksandrov 3069d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 3079d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 3083247b272SNikolay Aleksandrov #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) 3098266a049SNikolay Aleksandrov #define MDB_PG_FLAGS_STAR_EXCL BIT(3) 3109116ffbfSNikolay Aleksandrov #define MDB_PG_FLAGS_BLOCKED BIT(4) 3119d06b6d8SElad Raz 3128b671779SNikolay Aleksandrov #define PG_SRC_ENT_LIMIT 32 3138b671779SNikolay Aleksandrov 3148b671779SNikolay Aleksandrov #define BR_SGRP_F_DELETE BIT(0) 3158b671779SNikolay Aleksandrov #define BR_SGRP_F_SEND BIT(1) 316b0812368SNikolay Aleksandrov #define BR_SGRP_F_INSTALLED BIT(2) 317a01ecb17SIdo Schimmel #define BR_SGRP_F_USER_ADDED BIT(3) 3188b671779SNikolay Aleksandrov 319e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc { 320e12cec65SNikolay Aleksandrov struct hlist_node gc_node; 321e12cec65SNikolay Aleksandrov void (*destroy)(struct net_bridge_mcast_gc *gc); 322e12cec65SNikolay Aleksandrov }; 323e12cec65SNikolay Aleksandrov 3248b671779SNikolay Aleksandrov struct net_bridge_group_src { 3258b671779SNikolay Aleksandrov struct hlist_node node; 3268b671779SNikolay Aleksandrov 3278b671779SNikolay Aleksandrov struct br_ip addr; 3288b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 3298b671779SNikolay Aleksandrov u8 flags; 330438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 3318b671779SNikolay Aleksandrov struct timer_list timer; 3328b671779SNikolay Aleksandrov 3338b671779SNikolay Aleksandrov struct net_bridge *br; 334e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 3358b671779SNikolay Aleksandrov struct rcu_head rcu; 3368b671779SNikolay Aleksandrov }; 3378b671779SNikolay Aleksandrov 338085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key { 339eb1d1641SHerbert Xu struct net_bridge_port *port; 3408ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 341085b53c8SNikolay Aleksandrov }; 342085b53c8SNikolay Aleksandrov 343085b53c8SNikolay Aleksandrov struct net_bridge_port_group { 344085b53c8SNikolay Aleksandrov struct net_bridge_port_group __rcu *next; 345085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key key; 346206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 3479d06b6d8SElad Raz unsigned char flags; 3488b671779SNikolay Aleksandrov unsigned char filter_mode; 34942c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 3508f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 3516ec0d0eeSNikolay Aleksandrov 3528b671779SNikolay Aleksandrov struct hlist_head src_list; 3538b671779SNikolay Aleksandrov unsigned int src_ents; 3546ec0d0eeSNikolay Aleksandrov struct timer_list timer; 35542c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 3566ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 3578f07b831SNikolay Aleksandrov struct rb_root eht_set_tree; 3588f07b831SNikolay Aleksandrov struct rb_root eht_host_tree; 3596ec0d0eeSNikolay Aleksandrov 360085b53c8SNikolay Aleksandrov struct rhash_head rhnode; 361e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 3626ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 363eb1d1641SHerbert Xu }; 364eb1d1641SHerbert Xu 3651c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 36619e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 367eb1d1641SHerbert Xu struct net_bridge *br; 368e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 3698ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 370ff0fd34eSAndrew Lunn bool host_joined; 3716ec0d0eeSNikolay Aleksandrov 3726ec0d0eeSNikolay Aleksandrov struct timer_list timer; 37319e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 3746ec0d0eeSNikolay Aleksandrov 375e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 3766ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 377eb1d1641SHerbert Xu }; 378eb1d1641SHerbert Xu 3791f90c7f3SNikolay Aleksandrov struct net_bridge_port { 3801da177e4SLinus Torvalds struct net_bridge *br; 3811da177e4SLinus Torvalds struct net_device *dev; 382b2dcdc7fSEric Dumazet netdevice_tracker dev_tracker; 3831da177e4SLinus Torvalds struct list_head list; 3841da177e4SLinus Torvalds 3851f90c7f3SNikolay Aleksandrov unsigned long flags; 3861f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3871f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3881f90c7f3SNikolay Aleksandrov #endif 3892756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 390*29cfb2aaSIdo Schimmel u32 backup_nhid; 3911f90c7f3SNikolay Aleksandrov 3921da177e4SLinus Torvalds /* STP */ 3931da177e4SLinus Torvalds u8 priority; 3941da177e4SLinus Torvalds u8 state; 3951da177e4SLinus Torvalds u16 port_no; 3961da177e4SLinus Torvalds unsigned char topology_change_ack; 3971da177e4SLinus Torvalds unsigned char config_pending; 3981da177e4SLinus Torvalds port_id port_id; 3991da177e4SLinus Torvalds port_id designated_port; 4001da177e4SLinus Torvalds bridge_id designated_root; 4011da177e4SLinus Torvalds bridge_id designated_bridge; 4021da177e4SLinus Torvalds u32 path_cost; 4031da177e4SLinus Torvalds u32 designated_cost; 4040c03150eSstephen hemminger unsigned long designated_age; 4051da177e4SLinus Torvalds 4061da177e4SLinus Torvalds struct timer_list forward_delay_timer; 4071da177e4SLinus Torvalds struct timer_list hold_timer; 4081da177e4SLinus Torvalds struct timer_list message_age_timer; 4091da177e4SLinus Torvalds struct kobject kobj; 4101da177e4SLinus Torvalds struct rcu_head rcu; 4113982d3d2SFischer, Anna 4129632233eSNikolay Aleksandrov struct net_bridge_mcast_port multicast_ctx; 4139632233eSNikolay Aleksandrov 414eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4159632233eSNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 4169632233eSNikolay Aleksandrov 41789268b05SNikolay Aleksandrov u32 multicast_eht_hosts_limit; 41889268b05SNikolay Aleksandrov u32 multicast_eht_hosts_cnt; 419eb1d1641SHerbert Xu struct hlist_head mglist; 420eb1d1641SHerbert Xu #endif 421e0f43752SSimon Arlott 422e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 423e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 424e0f43752SSimon Arlott #endif 42591d2c34aSHerbert Xu 42691d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 42791d2c34aSHerbert Xu struct netpoll *np; 42891d2c34aSHerbert Xu #endif 4296bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 430f7cf972fSTobias Waldekranz /* Identifier used to group ports that share the same switchdev 431f7cf972fSTobias Waldekranz * hardware domain. 432f7cf972fSTobias Waldekranz */ 433f7cf972fSTobias Waldekranz int hwdom; 4342f5dc00fSVladimir Oltean int offload_count; 4352f5dc00fSVladimir Oltean struct netdev_phys_item_id ppid; 4366bc506b4SIdo Schimmel #endif 4375af48b59SNikolay Aleksandrov u16 group_fwd_mask; 4382756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 439de179966SVivien Didelot 440de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 4411da177e4SLinus Torvalds }; 4421da177e4SLinus Torvalds 443705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 444705e0deaSTyler Hicks 445e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 446f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 447e028e4b8SVlad Yasevich 448b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 449b5ed54e9Sstephen hemminger { 450716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 451b5ed54e9Sstephen hemminger } 452b5ed54e9Sstephen hemminger 4531fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 454b5ed54e9Sstephen hemminger { 45535f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 456ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 457b5ed54e9Sstephen hemminger } 458b5ed54e9Sstephen hemminger 4590baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 4600baa10ffSArkadi Sharshevsky { 46135f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 4620baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 4630baa10ffSArkadi Sharshevsky } 4640baa10ffSArkadi Sharshevsky 465ae75767eSNikolay Aleksandrov enum net_bridge_opts { 466ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 467ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 4688df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 4698df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 4708df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 471be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 47213cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 473675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 474675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 475675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 476c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 4773341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 4789163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 47970e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 4809c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 481f4b7002aSNikolay Aleksandrov BROPT_MCAST_VLAN_SNOOPING_ENABLED, 482ec7328b5STobias Waldekranz BROPT_MST_ENABLED, 483ae75767eSNikolay Aleksandrov }; 484ae75767eSNikolay Aleksandrov 4851f90c7f3SNikolay Aleksandrov struct net_bridge { 4861da177e4SLinus Torvalds spinlock_t lock; 4871f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 48890c628ddSHenrik Bjoernlund struct hlist_head frame_type_list; 4891da177e4SLinus Torvalds struct net_device *dev; 490ae75767eSNikolay Aleksandrov unsigned long options; 4911f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 4921f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 4931f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 4941f90c7f3SNikolay Aleksandrov u16 default_pvid; 4951f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 4961f90c7f3SNikolay Aleksandrov #endif 4971f90c7f3SNikolay Aleksandrov 498eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 49990c628ddSHenrik Bjoernlund struct list_head port_list; 50034666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 501efb6de9bSBernhard Thaler union { 5024adf0af6SSimon Wunderlich struct rtable fake_rtable; 503efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 504efb6de9bSBernhard Thaler }; 5054adf0af6SSimon Wunderlich #endif 506515853ccSstephen hemminger u16 group_fwd_mask; 507f2808d22SToshiaki Makita u16 group_fwd_mask_required; 508515853ccSstephen hemminger 5091da177e4SLinus Torvalds /* STP */ 5101da177e4SLinus Torvalds bridge_id designated_root; 5111da177e4SLinus Torvalds bridge_id bridge_id; 5121f90c7f3SNikolay Aleksandrov unsigned char topology_change; 5131f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 5141f90c7f3SNikolay Aleksandrov u16 root_port; 5151da177e4SLinus Torvalds unsigned long max_age; 5161da177e4SLinus Torvalds unsigned long hello_time; 5171da177e4SLinus Torvalds unsigned long forward_delay; 5181da177e4SLinus Torvalds unsigned long ageing_time; 51934d8acd8SVivien Didelot unsigned long bridge_max_age; 5201da177e4SLinus Torvalds unsigned long bridge_hello_time; 5211da177e4SLinus Torvalds unsigned long bridge_forward_delay; 52234d8acd8SVivien Didelot unsigned long bridge_ageing_time; 52335750b0bSNikolay Aleksandrov u32 root_path_cost; 5241da177e4SLinus Torvalds 525fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 5269cde0708SStephen Hemminger 5279cde0708SStephen Hemminger enum { 5289cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 5299cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 5309cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 5319cde0708SStephen Hemminger } stp_enabled; 5329cde0708SStephen Hemminger 533d3d065c0SNikolay Aleksandrov struct net_bridge_mcast multicast_ctx; 534d3d065c0SNikolay Aleksandrov 535eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 536d3d065c0SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 537eb1d1641SHerbert Xu 538eb1d1641SHerbert Xu u32 hash_max; 539eb1d1641SHerbert Xu 54035750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 541eb1d1641SHerbert Xu 54219e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 543085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 54419e3a9c9SNikolay Aleksandrov 545e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 54619e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 547eb1d1641SHerbert Xu 548e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 549eb1d1641SHerbert Xu #endif 550eb1d1641SHerbert Xu 5511da177e4SLinus Torvalds struct timer_list hello_timer; 5521da177e4SLinus Torvalds struct timer_list tcn_timer; 5531da177e4SLinus Torvalds struct timer_list topology_change_timer; 554f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 55543b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 556e028e4b8SVlad Yasevich u32 auto_cnt; 5576bc506b4SIdo Schimmel 5586bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 559f7cf972fSTobias Waldekranz /* Counter used to make sure that hardware domains get unique 560f7cf972fSTobias Waldekranz * identifiers in case a bridge spans multiple switchdev instances. 561f7cf972fSTobias Waldekranz */ 562f7cf972fSTobias Waldekranz int last_hwdom; 56385826610STobias Waldekranz /* Bit mask of hardware domain numbers in use */ 56485826610STobias Waldekranz unsigned long busy_hwdoms; 5656bc506b4SIdo Schimmel #endif 566eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 5674b8d7d4cSHoratiu Vultur 5684b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 5690169b820SHoratiu Vultur struct hlist_head mrp_list; 5704b8d7d4cSHoratiu Vultur #endif 571f323aa54SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 572f323aa54SHenrik Bjoernlund struct hlist_head mep_list; 573f323aa54SHenrik Bjoernlund #endif 5741da177e4SLinus Torvalds }; 5751da177e4SLinus Torvalds 57668b7c895SHerbert Xu struct br_input_skb_cb { 57768b7c895SHerbert Xu struct net_device *brdev; 57893fdd47eSHerbert Xu 5793c171f49SPablo Neira Ayuso u16 frag_max_size; 58032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 581f12064d1SFlorian Westphal u8 igmp; 582f12064d1SFlorian Westphal u8 mrouters_only:1; 58332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 584f12064d1SFlorian Westphal u8 proxyarp_replied:1; 585f12064d1SFlorian Westphal u8 src_port_isolated:1; 58620adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 587f12064d1SFlorian Westphal u8 vlan_filtered:1; 58820adfa1aSVlad Yasevich #endif 589223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 590223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 591223fd0adSFlorian Westphal #endif 5926bc506b4SIdo Schimmel 5936bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 59447211192STobias Waldekranz /* Set if TX data plane offloading is used towards at least one 59547211192STobias Waldekranz * hardware domain. 59647211192STobias Waldekranz */ 59747211192STobias Waldekranz u8 tx_fwd_offload:1; 598f7cf972fSTobias Waldekranz /* The switchdev hardware domain from which this packet was received. 599f7cf972fSTobias Waldekranz * If skb->offload_fwd_mark was set, then this packet was already 600f7cf972fSTobias Waldekranz * forwarded by hardware to the other ports in the source hardware 601f7cf972fSTobias Waldekranz * domain, otherwise it wasn't. 602f7cf972fSTobias Waldekranz */ 603f7cf972fSTobias Waldekranz int src_hwdom; 60447211192STobias Waldekranz /* Bit mask of hardware domains towards this packet has already been 60547211192STobias Waldekranz * transmitted using the TX data plane offload. 60647211192STobias Waldekranz */ 60747211192STobias Waldekranz unsigned long fwd_hwdoms; 6086bc506b4SIdo Schimmel #endif 609*29cfb2aaSIdo Schimmel 610*29cfb2aaSIdo Schimmel u32 backup_nhid; 61168b7c895SHerbert Xu }; 61268b7c895SHerbert Xu 61368b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 61468b7c895SHerbert Xu 61532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 61632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 61732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 61832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 61932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 62032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 62128a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 62228a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 62328a16c97Sstephen hemminger 62428a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 62528a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 62628a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 62728a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 62828a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 62928a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 63028a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 63128a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 63228a16c97Sstephen hemminger 63328a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 63428a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 63528a16c97Sstephen hemminger 6361da177e4SLinus Torvalds /* called under bridge lock */ 6371da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 6381da177e4SLinus Torvalds { 6391da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 6401da177e4SLinus Torvalds } 6411da177e4SLinus Torvalds 6422594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 6432594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 6442594e906SNikolay Aleksandrov { 6452594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 6462594e906SNikolay Aleksandrov } 6472594e906SNikolay Aleksandrov 6482594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 6492594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 6502594e906SNikolay Aleksandrov { 6512594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 6522594e906SNikolay Aleksandrov } 6532594e906SNikolay Aleksandrov 6546be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 6552594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 6562594e906SNikolay Aleksandrov { 6572594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 6582594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 6592594e906SNikolay Aleksandrov return true; 6602594e906SNikolay Aleksandrov else 6612594e906SNikolay Aleksandrov return false; 6622594e906SNikolay Aleksandrov } 6632594e906SNikolay Aleksandrov 6642594e906SNikolay Aleksandrov return true; 6652594e906SNikolay Aleksandrov } 6662594e906SNikolay Aleksandrov 6675d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 6685d1fcaf3SNikolay Aleksandrov { 6695d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 6705d1fcaf3SNikolay Aleksandrov } 6715d1fcaf3SNikolay Aleksandrov 6728f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 6735a46facbSNikolay Aleksandrov { 6748f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 6758f4cc940SNikolay Aleksandrov 6768f4cc940SNikolay Aleksandrov if (!ret) 6778f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 6788f4cc940SNikolay Aleksandrov 6798f4cc940SNikolay Aleksandrov return ret; 6805a46facbSNikolay Aleksandrov } 6815a46facbSNikolay Aleksandrov 6825a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 6838f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 6848f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 6855a46facbSNikolay Aleksandrov { 6865a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 6878f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 6888f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 6895a46facbSNikolay Aleksandrov return false; 6908f4cc940SNikolay Aleksandrov } 6915a46facbSNikolay Aleksandrov 6925a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 6935a46facbSNikolay Aleksandrov * - it has range start flag 6945a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 6955a46facbSNikolay Aleksandrov */ 6965a46facbSNikolay Aleksandrov if (last) { 6978f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 6988f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 6995a46facbSNikolay Aleksandrov return false; 7008f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 7018f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 7028f4cc940SNikolay Aleksandrov return false; 7038f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 7048f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 7058f4cc940SNikolay Aleksandrov return false; 7068f4cc940SNikolay Aleksandrov } 7078f4cc940SNikolay Aleksandrov } 7088f4cc940SNikolay Aleksandrov 7098f4cc940SNikolay Aleksandrov /* check for required range flags */ 7108f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 7118f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 7128f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 7135a46facbSNikolay Aleksandrov return false; 7145a46facbSNikolay Aleksandrov } 7155a46facbSNikolay Aleksandrov 7165a46facbSNikolay Aleksandrov return true; 7175a46facbSNikolay Aleksandrov } 7185a46facbSNikolay Aleksandrov 7192796d846SNikolay Aleksandrov static inline u8 br_vlan_multicast_router(const struct net_bridge_vlan *v) 7202796d846SNikolay Aleksandrov { 7212796d846SNikolay Aleksandrov u8 mcast_router = MDB_RTR_TYPE_DISABLED; 7222796d846SNikolay Aleksandrov 7232796d846SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 7242796d846SNikolay Aleksandrov if (!br_vlan_is_master(v)) 7252796d846SNikolay Aleksandrov mcast_router = v->port_mcast_ctx.multicast_router; 7262796d846SNikolay Aleksandrov else 7272796d846SNikolay Aleksandrov mcast_router = v->br_mcast_ctx.multicast_router; 7282796d846SNikolay Aleksandrov #endif 7292796d846SNikolay Aleksandrov 7302796d846SNikolay Aleksandrov return mcast_router; 7312796d846SNikolay Aleksandrov } 7322796d846SNikolay Aleksandrov 733f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 734f545923bSNikolay Aleksandrov { 735f545923bSNikolay Aleksandrov switch (cmd) { 736f545923bSNikolay Aleksandrov case RTM_SETLINK: 737f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 738f545923bSNikolay Aleksandrov case RTM_DELLINK: 739f545923bSNikolay Aleksandrov return RTM_DELVLAN; 740f545923bSNikolay Aleksandrov } 741f545923bSNikolay Aleksandrov 742f545923bSNikolay Aleksandrov return 0; 743f545923bSNikolay Aleksandrov } 744f545923bSNikolay Aleksandrov 745ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 746ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 747ae75767eSNikolay Aleksandrov { 748ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 749ae75767eSNikolay Aleksandrov } 750ae75767eSNikolay Aleksandrov 751a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 752a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 753a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 754a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 755a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 756a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 757a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 758a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 759ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 760ae75767eSNikolay Aleksandrov 7617b4858dfSIdo Schimmel #if IS_ENABLED(CONFIG_NET_TC_SKB_EXT) 7627b4858dfSIdo Schimmel static inline void br_tc_skb_miss_set(struct sk_buff *skb, bool miss) 7637b4858dfSIdo Schimmel { 7647b4858dfSIdo Schimmel struct tc_skb_ext *ext; 7657b4858dfSIdo Schimmel 7667b4858dfSIdo Schimmel if (!tc_skb_ext_tc_enabled()) 7677b4858dfSIdo Schimmel return; 7687b4858dfSIdo Schimmel 7697b4858dfSIdo Schimmel ext = skb_ext_find(skb, TC_SKB_EXT); 7707b4858dfSIdo Schimmel if (ext) { 7717b4858dfSIdo Schimmel ext->l2_miss = miss; 7727b4858dfSIdo Schimmel return; 7737b4858dfSIdo Schimmel } 7747b4858dfSIdo Schimmel if (!miss) 7757b4858dfSIdo Schimmel return; 7767b4858dfSIdo Schimmel ext = tc_skb_ext_alloc(skb); 7777b4858dfSIdo Schimmel if (!ext) 7787b4858dfSIdo Schimmel return; 7797b4858dfSIdo Schimmel ext->l2_miss = true; 7807b4858dfSIdo Schimmel } 7817b4858dfSIdo Schimmel #else 7827b4858dfSIdo Schimmel static inline void br_tc_skb_miss_set(struct sk_buff *skb, bool miss) 7837b4858dfSIdo Schimmel { 7847b4858dfSIdo Schimmel } 7857b4858dfSIdo Schimmel #endif 7867b4858dfSIdo Schimmel 7871da177e4SLinus Torvalds /* br_device.c */ 788348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 789348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 790348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 791cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 79291d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 79391d2c34aSHerbert Xu struct sk_buff *skb) 79491d2c34aSHerbert Xu { 795f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 79691d2c34aSHerbert Xu } 79791d2c34aSHerbert Xu 798a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 799348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 80091d2c34aSHerbert Xu #else 8019f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 80291d2c34aSHerbert Xu struct sk_buff *skb) 80391d2c34aSHerbert Xu { 80491d2c34aSHerbert Xu } 80591d2c34aSHerbert Xu 806a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 80791d2c34aSHerbert Xu { 80891d2c34aSHerbert Xu return 0; 80991d2c34aSHerbert Xu } 81091d2c34aSHerbert Xu 81191d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 81291d2c34aSHerbert Xu { 81391d2c34aSHerbert Xu } 814cfb478daSstephen hemminger #endif 8151da177e4SLinus Torvalds 8161da177e4SLinus Torvalds /* br_fdb.c */ 817564445fbSNikolay Aleksandrov #define FDB_FLUSH_IGNORED_NDM_FLAGS (NTF_MASTER | NTF_SELF) 818564445fbSNikolay Aleksandrov #define FDB_FLUSH_ALLOWED_NDM_STATES (NUD_PERMANENT | NUD_NOARP) 819564445fbSNikolay Aleksandrov #define FDB_FLUSH_ALLOWED_NDM_FLAGS (NTF_USE | NTF_EXT_LEARNED | \ 820564445fbSNikolay Aleksandrov NTF_STICKY | NTF_OFFLOADED) 821564445fbSNikolay Aleksandrov 822348662a1SJoe Perches int br_fdb_init(void); 823348662a1SJoe Perches void br_fdb_fini(void); 824eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 825eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 8261f78ee14SNikolay Aleksandrov void br_fdb_flush(struct net_bridge *br, 8271f78ee14SNikolay Aleksandrov const struct net_bridge_fdb_flush_desc *desc); 828424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 829424bb9c9SToshiaki Makita const struct net_bridge_port *p, 830424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 831348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 832348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 833f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 834348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 8351ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 836bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 837bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 838bfd0aeacSNikolay Aleksandrov __u16 vid); 839348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 840348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 841348662a1SJoe Perches unsigned long off); 842f6814fdcSVladimir Oltean int br_fdb_add_local(struct net_bridge *br, struct net_bridge_port *source, 843348662a1SJoe Perches const unsigned char *addr, u16 vid); 844348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 845be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 84677162022SJohn Fastabend 847348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 848ca4567f1SAlaa Mohamed struct net_device *dev, const unsigned char *addr, u16 vid, 849ca4567f1SAlaa Mohamed struct netlink_ext_ack *extack); 850edaef191SNikolay Aleksandrov int br_fdb_delete_bulk(struct ndmsg *ndm, struct nlattr *tb[], 851edaef191SNikolay Aleksandrov struct net_device *dev, u16 vid, 852edaef191SNikolay Aleksandrov struct netlink_ext_ack *extack); 853348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 85487b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 85587b0984eSPetr Machata struct netlink_ext_ack *extack); 856348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 857d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 85847674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 85947674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 86047674562SRoopa Prabhu struct netlink_ext_ack *extack); 8618db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 8628db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 8633aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 86445a68787SNikolay Aleksandrov const unsigned char *addr, u16 vid, 86527fabd02SHans J. Schultz bool locked, bool swdev_notify); 8663aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 867161d82deSPetr Machata const unsigned char *addr, u16 vid, 868161d82deSPetr Machata bool swdev_notify); 8699fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 870e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 8711da177e4SLinus Torvalds 8721da177e4SLinus Torvalds /* br_forward.c */ 8738addd5e7SNikolay Aleksandrov enum br_pkt_type { 8748addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 8758addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 8768addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 8778addd5e7SNikolay Aleksandrov }; 8780c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 879b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 88037b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 8810c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 88237b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 883e408336aSIdo Schimmel enum br_pkt_type pkt_type, bool local_rcv, bool local_orig, 884e408336aSIdo Schimmel u16 vid); 8851da177e4SLinus Torvalds 8867d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 8877d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 8887d850abdSNikolay Aleksandrov const struct sk_buff *skb) 8897d850abdSNikolay Aleksandrov { 8907d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 8917d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 8927d850abdSNikolay Aleksandrov } 8937d850abdSNikolay Aleksandrov 8941da177e4SLinus Torvalds /* br_if.c */ 895faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 896348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 897348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 898ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 899ca752be0SDavid Ahern struct netlink_ext_ack *extack); 900348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 901804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 902348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 903c8f44affSMichał Mirosław netdev_features_t features); 904e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 9052796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 9062756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 9071da177e4SLinus Torvalds 9081da177e4SLinus Torvalds /* br_input.c */ 9090c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 9109eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 9111da177e4SLinus Torvalds 91290c628ddSHenrik Bjoernlund struct br_frame_type { 91390c628ddSHenrik Bjoernlund __be16 type; 91490c628ddSHenrik Bjoernlund int (*frame_handler)(struct net_bridge_port *port, 91590c628ddSHenrik Bjoernlund struct sk_buff *skb); 91690c628ddSHenrik Bjoernlund struct hlist_node list; 91790c628ddSHenrik Bjoernlund }; 91890c628ddSHenrik Bjoernlund 91990c628ddSHenrik Bjoernlund void br_add_frame(struct net_bridge *br, struct br_frame_type *ft); 92090c628ddSHenrik Bjoernlund void br_del_frame(struct net_bridge *br, struct br_frame_type *ft); 92190c628ddSHenrik Bjoernlund 922859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 923859828c0SJiri Pirko { 9249eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 925859828c0SJiri Pirko } 926859828c0SJiri Pirko 9274d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 9284d4fd361SPetr Machata { 9299eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 9304d4fd361SPetr Machata } 9314d4fd361SPetr Machata 932859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 933859828c0SJiri Pirko { 934859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 935859828c0SJiri Pirko } 936859828c0SJiri Pirko 9374d4fd361SPetr Machata static inline struct net_bridge_port * 9384d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 9394d4fd361SPetr Machata { 9404d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 9414d4fd361SPetr Machata } 9424d4fd361SPetr Machata 9431da177e4SLinus Torvalds /* br_ioctl.c */ 944561d8352SArnd Bergmann int br_dev_siocdevprivate(struct net_device *dev, struct ifreq *rq, 945561d8352SArnd Bergmann void __user *data, int cmd); 946ad2f99aeSArnd Bergmann int br_ioctl_stub(struct net *net, struct net_bridge *br, unsigned int cmd, 947ad2f99aeSArnd Bergmann struct ifreq *ifr, void __user *uarg); 9481da177e4SLinus Torvalds 949eb1d1641SHerbert Xu /* br_multicast.c */ 950eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 951f4b7002aSNikolay Aleksandrov int br_multicast_rcv(struct net_bridge_mcast **brmctx, 952f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 953f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 954fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 955adc47037SNikolay Aleksandrov struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 956eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 9571080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 958348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 959348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 960348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 961348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 962851d0a73SJoseph Huang void br_multicast_join_snoopers(struct net_bridge *br); 963851d0a73SJoseph Huang void br_multicast_leave_snoopers(struct net_bridge *br); 964348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 965348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 966e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 967adc47037SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, struct sk_buff *skb, 968adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 969adc47037SNikolay Aleksandrov bool local_rcv, bool local_orig); 970a97df080SNikolay Aleksandrov int br_multicast_set_router(struct net_bridge_mcast *brmctx, unsigned long val); 971a53581d5SNikolay Aleksandrov int br_multicast_set_port_router(struct net_bridge_mcast_port *pmctx, 972a53581d5SNikolay Aleksandrov unsigned long val); 9732796d846SNikolay Aleksandrov int br_multicast_set_vlan_router(struct net_bridge_vlan *v, u8 mcast_router); 974ae1ea84bSFlorian Fainelli int br_multicast_toggle(struct net_bridge *br, unsigned long val, 975ae1ea84bSFlorian Fainelli struct netlink_ext_ack *extack); 97662938182SNikolay Aleksandrov int br_multicast_set_querier(struct net_bridge_mcast *brmctx, unsigned long val); 977348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 978df271cd6SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge_mcast *brmctx, 979df271cd6SNikolay Aleksandrov unsigned long val); 980aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 981df271cd6SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge_mcast *brmctx, 982df271cd6SNikolay Aleksandrov unsigned long val); 983aa2ae3e7SNikolay Aleksandrov #endif 984348662a1SJoe Perches struct net_bridge_mdb_entry * 98519e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 986348662a1SJoe Perches struct net_bridge_mdb_entry * 98719e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 988348662a1SJoe Perches struct net_bridge_port_group * 989f86c3e2cSIdo Schimmel br_multicast_new_port_group(struct net_bridge_port *port, 990f86c3e2cSIdo Schimmel const struct br_ip *group, 991762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 9928b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 99360977a0cSPetr Machata u8 filter_mode, u8 rt_protocol, 99460977a0cSPetr Machata struct netlink_ext_ack *extack); 995976b3858SPetr Machata void br_multicast_del_port_group(struct net_bridge_port_group *p); 99619e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 99719e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 99881f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 99981f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 10001e9ca456SNikolay Aleksandrov void br_rtr_notify(struct net_device *dev, struct net_bridge_mcast_port *pmctx, 1001949f1e39SSatish Ashok int type); 1002681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 1003681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 1004681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 1005adc47037SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, 1006adc47037SNikolay Aleksandrov const struct net_bridge_port *p, 1007a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 10081080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 1009b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 10101080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 10111080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 10121080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 1013a1aee20dSPetr Machata u32 br_multicast_ngroups_get(const struct net_bridge_mcast_port *pmctx); 1014a1aee20dSPetr Machata void br_multicast_ngroups_set_max(struct net_bridge_mcast_port *pmctx, u32 max); 1015a1aee20dSPetr Machata u32 br_multicast_ngroups_get_max(const struct net_bridge_mcast_port *pmctx); 1016cc7f5022SIdo Schimmel int br_mdb_add(struct net_device *dev, struct nlattr *tb[], u16 nlmsg_flags, 1017c009de10SIdo Schimmel struct netlink_ext_ack *extack); 1018cc7f5022SIdo Schimmel int br_mdb_del(struct net_device *dev, struct nlattr *tb[], 1019c009de10SIdo Schimmel struct netlink_ext_ack *extack); 1020cc7f5022SIdo Schimmel int br_mdb_dump(struct net_device *dev, struct sk_buff *skb, 1021c009de10SIdo Schimmel struct netlink_callback *cb); 102258d913a3SNikolay Aleksandrov void br_multicast_host_join(const struct net_bridge_mcast *brmctx, 102358d913a3SNikolay Aleksandrov struct net_bridge_mdb_entry *mp, bool notify); 10241bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 10258266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 10268266a049SNikolay Aleksandrov u8 filter_mode); 10278266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 10288266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 1029474ddb37SNikolay Aleksandrov struct net_bridge_group_src * 1030474ddb37SNikolay Aleksandrov br_multicast_find_group_src(struct net_bridge_port_group *pg, struct br_ip *ip); 1031fd0c6961SIdo Schimmel struct net_bridge_group_src * 1032fd0c6961SIdo Schimmel br_multicast_new_group_src(struct net_bridge_port_group *pg, 1033fd0c6961SIdo Schimmel struct br_ip *src_ip); 1034083e3534SIdo Schimmel void __br_multicast_del_group_src(struct net_bridge_group_src *src); 1035d5a10222SNikolay Aleksandrov void br_multicast_del_group_src(struct net_bridge_group_src *src, 1036d5a10222SNikolay Aleksandrov bool fastleave); 1037613d61dbSNikolay Aleksandrov void br_multicast_ctx_init(struct net_bridge *br, 1038613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1039613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx); 1040613d61dbSNikolay Aleksandrov void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx); 1041613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_init(struct net_bridge_port *port, 1042613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1043613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx); 1044613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx); 10457b54aaafSNikolay Aleksandrov void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, bool on); 1046f4b7002aSNikolay Aleksandrov int br_multicast_toggle_vlan_snooping(struct net_bridge *br, bool on, 1047f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack); 10489dee572cSNikolay Aleksandrov bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, bool on); 104985b35269SSridhar Samudrala 1050dc002875SNikolay Aleksandrov int br_rports_fill_info(struct sk_buff *skb, 1051dc002875SNikolay Aleksandrov const struct net_bridge_mcast *brmctx); 1052c7fa1d9bSNikolay Aleksandrov int br_multicast_dump_querier_state(struct sk_buff *skb, 1053c7fa1d9bSNikolay Aleksandrov const struct net_bridge_mcast *brmctx, 1054c7fa1d9bSNikolay Aleksandrov int nest_attr); 1055c7fa1d9bSNikolay Aleksandrov size_t br_multicast_querier_state_size(void); 105605d6f38eSNikolay Aleksandrov size_t br_rports_size(const struct net_bridge_mcast *brmctx); 105799b40610SNikolay Aleksandrov void br_multicast_set_query_intvl(struct net_bridge_mcast *brmctx, 105899b40610SNikolay Aleksandrov unsigned long val); 1059f83a112bSNikolay Aleksandrov void br_multicast_set_startup_query_intvl(struct net_bridge_mcast *brmctx, 1060f83a112bSNikolay Aleksandrov unsigned long val); 10614e51bf44SVladimir Oltean 1062955062b0SNikolay Aleksandrov static inline bool br_group_is_l2(const struct br_ip *group) 1063955062b0SNikolay Aleksandrov { 1064955062b0SNikolay Aleksandrov return group->proto == 0; 1065955062b0SNikolay Aleksandrov } 1066955062b0SNikolay Aleksandrov 1067cfd56754SCong Wang #define mlock_dereference(X, br) \ 1068cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 1069cfd56754SCong Wang 107044ebb081SLinus Lüssing static inline struct hlist_node * 1071adc47037SNikolay Aleksandrov br_multicast_get_first_rport_node(struct net_bridge_mcast *brmctx, 1072adc47037SNikolay Aleksandrov struct sk_buff *skb) 1073d3d065c0SNikolay Aleksandrov { 1074a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 1075a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 1076d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip6_mc_router_list)); 1077a3c02e76SLinus Lüssing #endif 1078d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip4_mc_router_list)); 107944ebb081SLinus Lüssing } 108044ebb081SLinus Lüssing 108144ebb081SLinus Lüssing static inline struct net_bridge_port * 1082d3d065c0SNikolay Aleksandrov br_multicast_rport_from_node_skb(struct hlist_node *rp, struct sk_buff *skb) 1083d3d065c0SNikolay Aleksandrov { 10849632233eSNikolay Aleksandrov struct net_bridge_mcast_port *mctx; 10859632233eSNikolay Aleksandrov 1086a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 1087a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 10889632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 10899632233eSNikolay Aleksandrov ip6_rlist); 10909632233eSNikolay Aleksandrov else 1091a3c02e76SLinus Lüssing #endif 10929632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 10939632233eSNikolay Aleksandrov ip4_rlist); 10949632233eSNikolay Aleksandrov 10959632233eSNikolay Aleksandrov if (mctx) 10969632233eSNikolay Aleksandrov return mctx->port; 10979632233eSNikolay Aleksandrov else 10989632233eSNikolay Aleksandrov return NULL; 109944ebb081SLinus Lüssing } 110044ebb081SLinus Lüssing 1101d3d065c0SNikolay Aleksandrov static inline bool br_ip4_multicast_is_router(struct net_bridge_mcast *brmctx) 110285b35269SSridhar Samudrala { 1103d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip4_mc_router_timer); 11041a3065a2SLinus Lüssing } 11051a3065a2SLinus Lüssing 1106d3d065c0SNikolay Aleksandrov static inline bool br_ip6_multicast_is_router(struct net_bridge_mcast *brmctx) 11071a3065a2SLinus Lüssing { 11081a3065a2SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 1109d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip6_mc_router_timer); 11101a3065a2SLinus Lüssing #else 11111a3065a2SLinus Lüssing return false; 11121a3065a2SLinus Lüssing #endif 11131a3065a2SLinus Lüssing } 11141a3065a2SLinus Lüssing 11151a3065a2SLinus Lüssing static inline bool 1116adc47037SNikolay Aleksandrov br_multicast_is_router(struct net_bridge_mcast *brmctx, struct sk_buff *skb) 11171a3065a2SLinus Lüssing { 1118d3d065c0SNikolay Aleksandrov switch (brmctx->multicast_router) { 11191a3065a2SLinus Lüssing case MDB_RTR_TYPE_PERM: 11201a3065a2SLinus Lüssing return true; 11211a3065a2SLinus Lüssing case MDB_RTR_TYPE_TEMP_QUERY: 11221a3065a2SLinus Lüssing if (skb) { 11231a3065a2SLinus Lüssing if (skb->protocol == htons(ETH_P_IP)) 1124d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx); 11251a3065a2SLinus Lüssing else if (skb->protocol == htons(ETH_P_IPV6)) 1126d3d065c0SNikolay Aleksandrov return br_ip6_multicast_is_router(brmctx); 11271a3065a2SLinus Lüssing } else { 1128d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx) || 1129d3d065c0SNikolay Aleksandrov br_ip6_multicast_is_router(brmctx); 11301a3065a2SLinus Lüssing } 11311a3065a2SLinus Lüssing fallthrough; 11321a3065a2SLinus Lüssing default: 11331a3065a2SLinus Lüssing return false; 11341a3065a2SLinus Lüssing } 113585b35269SSridhar Samudrala } 1136b00589afSLinus Lüssing 1137cc0fdd80SLinus Lüssing static inline bool 1138adc47037SNikolay Aleksandrov __br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 11390888d5f3Sdaniel struct bridge_mcast_other_query *querier, 11400888d5f3Sdaniel const bool is_ipv6) 1141b00589afSLinus Lüssing { 11420888d5f3Sdaniel bool own_querier_enabled; 11430888d5f3Sdaniel 114462938182SNikolay Aleksandrov if (brmctx->multicast_querier) { 1145adc47037SNikolay Aleksandrov if (is_ipv6 && !br_opt_get(brmctx->br, BROPT_HAS_IPV6_ADDR)) 11460888d5f3Sdaniel own_querier_enabled = false; 11470888d5f3Sdaniel else 11480888d5f3Sdaniel own_querier_enabled = true; 11490888d5f3Sdaniel } else { 11500888d5f3Sdaniel own_querier_enabled = false; 11510888d5f3Sdaniel } 11520888d5f3Sdaniel 1153cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 11540888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 1155cc0fdd80SLinus Lüssing } 1156cc0fdd80SLinus Lüssing 1157adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1158955062b0SNikolay Aleksandrov struct ethhdr *eth, 1159955062b0SNikolay Aleksandrov const struct net_bridge_mdb_entry *mdb) 1160cc0fdd80SLinus Lüssing { 1161cc0fdd80SLinus Lüssing switch (eth->h_proto) { 1162cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 1163adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1164adc47037SNikolay Aleksandrov &brmctx->ip4_other_query, false); 1165cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 1166cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 1167adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1168adc47037SNikolay Aleksandrov &brmctx->ip6_other_query, true); 1169cc0fdd80SLinus Lüssing #endif 1170cc0fdd80SLinus Lüssing default: 1171955062b0SNikolay Aleksandrov return !!mdb && br_group_is_l2(&mdb->addr); 1172cc0fdd80SLinus Lüssing } 1173b00589afSLinus Lüssing } 11741080ab95SNikolay Aleksandrov 117588d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 117688d4bd18SNikolay Aleksandrov { 117788d4bd18SNikolay Aleksandrov switch (ip->proto) { 117888d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 117988d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 118088d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 118188d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 118288d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 118388d4bd18SNikolay Aleksandrov #endif 118488d4bd18SNikolay Aleksandrov default: 118588d4bd18SNikolay Aleksandrov return false; 118688d4bd18SNikolay Aleksandrov } 118788d4bd18SNikolay Aleksandrov } 118888d4bd18SNikolay Aleksandrov 1189adc47037SNikolay Aleksandrov static inline bool 1190adc47037SNikolay Aleksandrov br_multicast_should_handle_mode(const struct net_bridge_mcast *brmctx, 11918266a049SNikolay Aleksandrov __be16 proto) 11928266a049SNikolay Aleksandrov { 11938266a049SNikolay Aleksandrov switch (proto) { 11948266a049SNikolay Aleksandrov case htons(ETH_P_IP): 1195adc47037SNikolay Aleksandrov return !!(brmctx->multicast_igmp_version == 3); 11968266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 11978266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 1198adc47037SNikolay Aleksandrov return !!(brmctx->multicast_mld_version == 2); 11998266a049SNikolay Aleksandrov #endif 12008266a049SNikolay Aleksandrov default: 12018266a049SNikolay Aleksandrov return false; 12028266a049SNikolay Aleksandrov } 12038266a049SNikolay Aleksandrov } 12048266a049SNikolay Aleksandrov 12051080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 12061080ab95SNikolay Aleksandrov { 12071080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 12081080ab95SNikolay Aleksandrov } 120942c11ccfSNikolay Aleksandrov 1210adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge_mcast *brmctx) 121142c11ccfSNikolay Aleksandrov { 1212adc47037SNikolay Aleksandrov return brmctx->multicast_last_member_interval * 1213adc47037SNikolay Aleksandrov brmctx->multicast_last_member_count; 121442c11ccfSNikolay Aleksandrov } 12150436862eSNikolay Aleksandrov 1216adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge_mcast *brmctx) 12170436862eSNikolay Aleksandrov { 1218fac3cb82SNikolay Aleksandrov return brmctx->multicast_membership_interval; 12190436862eSNikolay Aleksandrov } 12207b54aaafSNikolay Aleksandrov 12217b54aaafSNikolay Aleksandrov static inline bool 12227b54aaafSNikolay Aleksandrov br_multicast_ctx_is_vlan(const struct net_bridge_mcast *brmctx) 12237b54aaafSNikolay Aleksandrov { 12247b54aaafSNikolay Aleksandrov return !!brmctx->vlan; 12257b54aaafSNikolay Aleksandrov } 12267b54aaafSNikolay Aleksandrov 12277b54aaafSNikolay Aleksandrov static inline bool 12287b54aaafSNikolay Aleksandrov br_multicast_port_ctx_is_vlan(const struct net_bridge_mcast_port *pmctx) 12297b54aaafSNikolay Aleksandrov { 12307b54aaafSNikolay Aleksandrov return !!pmctx->vlan; 12317b54aaafSNikolay Aleksandrov } 12327b54aaafSNikolay Aleksandrov 12337b54aaafSNikolay Aleksandrov static inline struct net_bridge_mcast * 12347b54aaafSNikolay Aleksandrov br_multicast_port_ctx_get_global(const struct net_bridge_mcast_port *pmctx) 12357b54aaafSNikolay Aleksandrov { 12367b54aaafSNikolay Aleksandrov if (!br_multicast_port_ctx_is_vlan(pmctx)) 12377b54aaafSNikolay Aleksandrov return &pmctx->port->br->multicast_ctx; 12387b54aaafSNikolay Aleksandrov else 12397b54aaafSNikolay Aleksandrov return &pmctx->vlan->brvlan->br_mcast_ctx; 12407b54aaafSNikolay Aleksandrov } 12417b54aaafSNikolay Aleksandrov 12427b54aaafSNikolay Aleksandrov static inline bool 12437b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_global_disabled(const struct net_bridge_mcast *brmctx) 12447b54aaafSNikolay Aleksandrov { 1245168fed98SNikolay Aleksandrov return br_multicast_ctx_is_vlan(brmctx) && 1246168fed98SNikolay Aleksandrov (!br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) || 1247168fed98SNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED)); 12487b54aaafSNikolay Aleksandrov } 12497b54aaafSNikolay Aleksandrov 12507b54aaafSNikolay Aleksandrov static inline bool 12517b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_disabled(const struct net_bridge_mcast *brmctx) 12527b54aaafSNikolay Aleksandrov { 12537b54aaafSNikolay Aleksandrov return br_multicast_ctx_is_vlan(brmctx) && 12547b54aaafSNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 12557b54aaafSNikolay Aleksandrov } 12567b54aaafSNikolay Aleksandrov 12577b54aaafSNikolay Aleksandrov static inline bool 12587b54aaafSNikolay Aleksandrov br_multicast_port_ctx_vlan_disabled(const struct net_bridge_mcast_port *pmctx) 12597b54aaafSNikolay Aleksandrov { 12607b54aaafSNikolay Aleksandrov return br_multicast_port_ctx_is_vlan(pmctx) && 12617b54aaafSNikolay Aleksandrov !(pmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 12627b54aaafSNikolay Aleksandrov } 12634cdd0d10SNikolay Aleksandrov 12644cdd0d10SNikolay Aleksandrov static inline bool 12654cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_disabled(const struct net_bridge_mcast_port *pmctx) 12664cdd0d10SNikolay Aleksandrov { 12674cdd0d10SNikolay Aleksandrov return pmctx->port->state == BR_STATE_DISABLED || 12684cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 12694cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_vlan_disabled(pmctx) || 12704cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_DISABLED)); 12714cdd0d10SNikolay Aleksandrov } 12724cdd0d10SNikolay Aleksandrov 12734cdd0d10SNikolay Aleksandrov static inline bool 12744cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_stopped(const struct net_bridge_mcast_port *pmctx) 12754cdd0d10SNikolay Aleksandrov { 12764cdd0d10SNikolay Aleksandrov return br_multicast_port_ctx_state_disabled(pmctx) || 12774cdd0d10SNikolay Aleksandrov pmctx->port->state == BR_STATE_BLOCKING || 12784cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 12794cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_BLOCKING); 12804cdd0d10SNikolay Aleksandrov } 1281df271cd6SNikolay Aleksandrov 1282df271cd6SNikolay Aleksandrov static inline bool 1283dc002875SNikolay Aleksandrov br_rports_have_mc_router(const struct net_bridge_mcast *brmctx) 1284dc002875SNikolay Aleksandrov { 1285dc002875SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 1286dc002875SNikolay Aleksandrov return !hlist_empty(&brmctx->ip4_mc_router_list) || 1287dc002875SNikolay Aleksandrov !hlist_empty(&brmctx->ip6_mc_router_list); 1288dc002875SNikolay Aleksandrov #else 1289dc002875SNikolay Aleksandrov return !hlist_empty(&brmctx->ip4_mc_router_list); 1290dc002875SNikolay Aleksandrov #endif 1291dc002875SNikolay Aleksandrov } 1292dc002875SNikolay Aleksandrov 1293dc002875SNikolay Aleksandrov static inline bool 1294df271cd6SNikolay Aleksandrov br_multicast_ctx_options_equal(const struct net_bridge_mcast *brmctx1, 1295df271cd6SNikolay Aleksandrov const struct net_bridge_mcast *brmctx2) 1296df271cd6SNikolay Aleksandrov { 1297df271cd6SNikolay Aleksandrov return brmctx1->multicast_igmp_version == 1298df271cd6SNikolay Aleksandrov brmctx2->multicast_igmp_version && 1299931ba87dSNikolay Aleksandrov brmctx1->multicast_last_member_count == 1300931ba87dSNikolay Aleksandrov brmctx2->multicast_last_member_count && 130150725f6eSNikolay Aleksandrov brmctx1->multicast_startup_query_count == 130250725f6eSNikolay Aleksandrov brmctx2->multicast_startup_query_count && 130377f6ababSNikolay Aleksandrov brmctx1->multicast_last_member_interval == 130477f6ababSNikolay Aleksandrov brmctx2->multicast_last_member_interval && 13052da0aea2SNikolay Aleksandrov brmctx1->multicast_membership_interval == 13062da0aea2SNikolay Aleksandrov brmctx2->multicast_membership_interval && 1307cd9269d4SNikolay Aleksandrov brmctx1->multicast_querier_interval == 1308cd9269d4SNikolay Aleksandrov brmctx2->multicast_querier_interval && 1309d6c08abaSNikolay Aleksandrov brmctx1->multicast_query_interval == 1310d6c08abaSNikolay Aleksandrov brmctx2->multicast_query_interval && 131142521450SNikolay Aleksandrov brmctx1->multicast_query_response_interval == 131242521450SNikolay Aleksandrov brmctx2->multicast_query_response_interval && 1313941121eeSNikolay Aleksandrov brmctx1->multicast_startup_query_interval == 1314941121eeSNikolay Aleksandrov brmctx2->multicast_startup_query_interval && 131562938182SNikolay Aleksandrov brmctx1->multicast_querier == brmctx2->multicast_querier && 1316a97df080SNikolay Aleksandrov brmctx1->multicast_router == brmctx2->multicast_router && 1317dc002875SNikolay Aleksandrov !br_rports_have_mc_router(brmctx1) && 1318dc002875SNikolay Aleksandrov !br_rports_have_mc_router(brmctx2) && 1319df271cd6SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 1320df271cd6SNikolay Aleksandrov brmctx1->multicast_mld_version == 1321df271cd6SNikolay Aleksandrov brmctx2->multicast_mld_version && 1322df271cd6SNikolay Aleksandrov #endif 1323df271cd6SNikolay Aleksandrov true; 1324df271cd6SNikolay Aleksandrov } 1325cb486ce9SNikolay Aleksandrov 1326cb486ce9SNikolay Aleksandrov static inline bool 1327cb486ce9SNikolay Aleksandrov br_multicast_ctx_matches_vlan_snooping(const struct net_bridge_mcast *brmctx) 1328cb486ce9SNikolay Aleksandrov { 1329cb486ce9SNikolay Aleksandrov bool vlan_snooping_enabled; 1330cb486ce9SNikolay Aleksandrov 1331cb486ce9SNikolay Aleksandrov vlan_snooping_enabled = !!br_opt_get(brmctx->br, 1332cb486ce9SNikolay Aleksandrov BROPT_MCAST_VLAN_SNOOPING_ENABLED); 1333cb486ce9SNikolay Aleksandrov 1334cb486ce9SNikolay Aleksandrov return !!(vlan_snooping_enabled == br_multicast_ctx_is_vlan(brmctx)); 1335cb486ce9SNikolay Aleksandrov } 1336eb1d1641SHerbert Xu #else 1337f4b7002aSNikolay Aleksandrov static inline int br_multicast_rcv(struct net_bridge_mcast **brmctx, 1338f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 1339f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 134006499098SVlad Yasevich struct sk_buff *skb, 134106499098SVlad Yasevich u16 vid) 1342eb1d1641SHerbert Xu { 1343eb1d1641SHerbert Xu return 0; 1344eb1d1641SHerbert Xu } 1345eb1d1641SHerbert Xu 1346adc47037SNikolay Aleksandrov static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 1347fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 1348eb1d1641SHerbert Xu { 1349eb1d1641SHerbert Xu return NULL; 1350eb1d1641SHerbert Xu } 1351eb1d1641SHerbert Xu 13521080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 1353eb1d1641SHerbert Xu { 13541080ab95SNikolay Aleksandrov return 0; 1355eb1d1641SHerbert Xu } 1356eb1d1641SHerbert Xu 1357eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 1358eb1d1641SHerbert Xu { 1359eb1d1641SHerbert Xu } 1360eb1d1641SHerbert Xu 1361eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 1362eb1d1641SHerbert Xu { 1363eb1d1641SHerbert Xu } 1364eb1d1641SHerbert Xu 1365eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 1366eb1d1641SHerbert Xu { 1367eb1d1641SHerbert Xu } 1368eb1d1641SHerbert Xu 1369eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 1370eb1d1641SHerbert Xu { 1371eb1d1641SHerbert Xu } 1372eb1d1641SHerbert Xu 1373851d0a73SJoseph Huang static inline void br_multicast_join_snoopers(struct net_bridge *br) 1374851d0a73SJoseph Huang { 1375851d0a73SJoseph Huang } 1376851d0a73SJoseph Huang 1377851d0a73SJoseph Huang static inline void br_multicast_leave_snoopers(struct net_bridge *br) 1378851d0a73SJoseph Huang { 1379851d0a73SJoseph Huang } 1380851d0a73SJoseph Huang 1381eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 1382eb1d1641SHerbert Xu { 1383eb1d1641SHerbert Xu } 1384eb1d1641SHerbert Xu 1385eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 1386eb1d1641SHerbert Xu { 1387eb1d1641SHerbert Xu } 13885cb5e947SHerbert Xu 1389a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 1390a7ce45a7SNikolay Aleksandrov { 1391a7ce45a7SNikolay Aleksandrov } 1392a7ce45a7SNikolay Aleksandrov 139337b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 139437b090e6SNikolay Aleksandrov struct sk_buff *skb, 1395adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 139637b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 13975cb5e947SHerbert Xu { 13985cb5e947SHerbert Xu } 13995cb5e947SHerbert Xu 1400adc47037SNikolay Aleksandrov static inline bool br_multicast_is_router(struct net_bridge_mcast *brmctx, 1401bbc6f2ccSNikolay Aleksandrov struct sk_buff *skb) 1402eb1d1641SHerbert Xu { 140303aaa9e2SGustavo A. R. Silva return false; 1404eb1d1641SHerbert Xu } 140537b090e6SNikolay Aleksandrov 1406adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1407c43fd36fSVladimir Oltean struct ethhdr *eth, 1408c43fd36fSVladimir Oltean const struct net_bridge_mdb_entry *mdb) 1409b00589afSLinus Lüssing { 1410b00589afSLinus Lüssing return false; 1411b00589afSLinus Lüssing } 141237b090e6SNikolay Aleksandrov 1413cc7f5022SIdo Schimmel static inline int br_mdb_add(struct net_device *dev, struct nlattr *tb[], 1414cc7f5022SIdo Schimmel u16 nlmsg_flags, struct netlink_ext_ack *extack) 1415cc7f5022SIdo Schimmel { 1416cc7f5022SIdo Schimmel return -EOPNOTSUPP; 1417cc7f5022SIdo Schimmel } 1418cc7f5022SIdo Schimmel 1419cc7f5022SIdo Schimmel static inline int br_mdb_del(struct net_device *dev, struct nlattr *tb[], 1420c009de10SIdo Schimmel struct netlink_ext_ack *extack) 1421c009de10SIdo Schimmel { 1422c009de10SIdo Schimmel return -EOPNOTSUPP; 1423c009de10SIdo Schimmel } 1424c009de10SIdo Schimmel 1425cc7f5022SIdo Schimmel static inline int br_mdb_dump(struct net_device *dev, struct sk_buff *skb, 1426c009de10SIdo Schimmel struct netlink_callback *cb) 1427c009de10SIdo Schimmel { 1428c009de10SIdo Schimmel return 0; 1429c009de10SIdo Schimmel } 1430c009de10SIdo Schimmel 143119e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 143219e3a9c9SNikolay Aleksandrov { 143319e3a9c9SNikolay Aleksandrov return 0; 143419e3a9c9SNikolay Aleksandrov } 143519e3a9c9SNikolay Aleksandrov 143619e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 143719e3a9c9SNikolay Aleksandrov { 143819e3a9c9SNikolay Aleksandrov } 143919e3a9c9SNikolay Aleksandrov 14401080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 14411080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1442a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1443a65056ecSNikolay Aleksandrov u8 type, u8 dir) 14441080ab95SNikolay Aleksandrov { 14451080ab95SNikolay Aleksandrov } 14461080ab95SNikolay Aleksandrov 14471080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 14481080ab95SNikolay Aleksandrov { 14491080ab95SNikolay Aleksandrov return 0; 14501080ab95SNikolay Aleksandrov } 14511080ab95SNikolay Aleksandrov 1452b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1453b6fe0440SIdo Schimmel { 1454b6fe0440SIdo Schimmel } 1455b6fe0440SIdo Schimmel 14561080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 14571080ab95SNikolay Aleksandrov { 14581080ab95SNikolay Aleksandrov return 0; 14591080ab95SNikolay Aleksandrov } 1460613d61dbSNikolay Aleksandrov 1461613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_init(struct net_bridge *br, 1462613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1463613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx) 1464613d61dbSNikolay Aleksandrov { 1465613d61dbSNikolay Aleksandrov } 1466613d61dbSNikolay Aleksandrov 1467613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx) 1468613d61dbSNikolay Aleksandrov { 1469613d61dbSNikolay Aleksandrov } 1470613d61dbSNikolay Aleksandrov 1471613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_init(struct net_bridge_port *port, 1472613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1473613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx) 1474613d61dbSNikolay Aleksandrov { 1475613d61dbSNikolay Aleksandrov } 1476613d61dbSNikolay Aleksandrov 1477613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx) 1478613d61dbSNikolay Aleksandrov { 1479613d61dbSNikolay Aleksandrov } 14807b54aaafSNikolay Aleksandrov 14817b54aaafSNikolay Aleksandrov static inline void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, 14827b54aaafSNikolay Aleksandrov bool on) 14837b54aaafSNikolay Aleksandrov { 14847b54aaafSNikolay Aleksandrov } 1485f4b7002aSNikolay Aleksandrov 1486f4b7002aSNikolay Aleksandrov static inline int br_multicast_toggle_vlan_snooping(struct net_bridge *br, 1487f4b7002aSNikolay Aleksandrov bool on, 1488f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack) 1489f4b7002aSNikolay Aleksandrov { 1490f4b7002aSNikolay Aleksandrov return -EOPNOTSUPP; 1491f4b7002aSNikolay Aleksandrov } 14929dee572cSNikolay Aleksandrov 14939dee572cSNikolay Aleksandrov static inline bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, 14949dee572cSNikolay Aleksandrov bool on) 14959dee572cSNikolay Aleksandrov { 14969dee572cSNikolay Aleksandrov return false; 14979dee572cSNikolay Aleksandrov } 14984e51bf44SVladimir Oltean 1499df271cd6SNikolay Aleksandrov static inline bool 1500df271cd6SNikolay Aleksandrov br_multicast_ctx_options_equal(const struct net_bridge_mcast *brmctx1, 1501df271cd6SNikolay Aleksandrov const struct net_bridge_mcast *brmctx2) 1502df271cd6SNikolay Aleksandrov { 1503df271cd6SNikolay Aleksandrov return true; 1504df271cd6SNikolay Aleksandrov } 150585b35269SSridhar Samudrala #endif 1506eb1d1641SHerbert Xu 1507243a2e63SVlad Yasevich /* br_vlan.c */ 1508243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 150977751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 151077751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1511f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1512f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan); 151377751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 151485f46c6bSVlad Yasevich const struct sk_buff *skb); 1515e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1516348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 151711538d03SRoopa Prabhu const struct net_bridge_port *port, 15182594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 151978851988SVlad Yasevich struct sk_buff *skb); 1520f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1521169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1522348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1523348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 15242594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1525204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 15269e781401SVladimir Oltean int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val, 15279e781401SVladimir Oltean struct netlink_ext_ack *extack); 1528dcbdf135SVladimir Oltean int __br_vlan_set_proto(struct net_bridge *br, __be16 proto, 1529dcbdf135SVladimir Oltean struct netlink_ext_ack *extack); 15309e781401SVladimir Oltean int br_vlan_set_proto(struct net_bridge *br, unsigned long val, 15319e781401SVladimir Oltean struct netlink_ext_ack *extack); 15326dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 15339163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 15345be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 15359e781401SVladimir Oltean int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val, 15369e781401SVladimir Oltean struct netlink_ext_ack *extack); 1537169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1538169327d5SPetr Machata struct netlink_ext_ack *extack); 1539f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1540169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1541348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1542348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1543169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 15442594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1545a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1546281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats); 15479c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1548091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 15499c0ec2e7SMike Manning void *ptr); 15508dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 15518dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1552cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1553cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1554cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1555cf5bddb9SNikolay Aleksandrov int cmd); 1556a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1557a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1558a37b85c9SVlad Yasevich 1559bcf2766bSFelix Fietkau void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1560bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1561bcf2766bSFelix Fietkau struct net_device_path *path); 1562bcf2766bSFelix Fietkau int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1563bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1564bcf2766bSFelix Fietkau struct net_device_path *path); 1565bcf2766bSFelix Fietkau 15662594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1567a37b85c9SVlad Yasevich const struct net_bridge *br) 1568a37b85c9SVlad Yasevich { 1569907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1570a37b85c9SVlad Yasevich } 1571a37b85c9SVlad Yasevich 15722594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1573a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1574a37b85c9SVlad Yasevich { 1575907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1576907b1e6eSNikolay Aleksandrov } 1577907b1e6eSNikolay Aleksandrov 1578907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1579907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1580907b1e6eSNikolay Aleksandrov { 1581907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1582907b1e6eSNikolay Aleksandrov } 1583907b1e6eSNikolay Aleksandrov 1584907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1585907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1586907b1e6eSNikolay Aleksandrov { 1587907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1588a37b85c9SVlad Yasevich } 1589a37b85c9SVlad Yasevich 1590a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1591a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1592a37b85c9SVlad Yasevich */ 1593a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1594a37b85c9SVlad Yasevich { 1595a37b85c9SVlad Yasevich int err = 0; 1596a37b85c9SVlad Yasevich 15972594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 15985978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 15992594e906SNikolay Aleksandrov } else { 1600a37b85c9SVlad Yasevich *vid = 0; 1601a37b85c9SVlad Yasevich err = -EINVAL; 1602a37b85c9SVlad Yasevich } 1603a37b85c9SVlad Yasevich 1604a37b85c9SVlad Yasevich return err; 1605a37b85c9SVlad Yasevich } 160678851988SVlad Yasevich 160777751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 160878851988SVlad Yasevich { 160977751ee8SNikolay Aleksandrov if (!vg) 16105be5a2dfSVlad Yasevich return 0; 16115be5a2dfSVlad Yasevich 161278851988SVlad Yasevich smp_rmb(); 161377751ee8SNikolay Aleksandrov return vg->pvid; 161478851988SVlad Yasevich } 161578851988SVlad Yasevich 16168dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 16178dcea187SNikolay Aleksandrov { 16188dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 16198dcea187SNikolay Aleksandrov } 1620243a2e63SVlad Yasevich #else 162177751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 162277751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 16232594e906SNikolay Aleksandrov struct sk_buff *skb, 1624f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1625f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan) 1626f4b7002aSNikolay Aleksandrov 16272594e906SNikolay Aleksandrov { 1628f4b7002aSNikolay Aleksandrov *vlan = NULL; 16292594e906SNikolay Aleksandrov return true; 16302594e906SNikolay Aleksandrov } 16312594e906SNikolay Aleksandrov 16322594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 163385f46c6bSVlad Yasevich const struct sk_buff *skb) 163485f46c6bSVlad Yasevich { 163585f46c6bSVlad Yasevich return true; 163685f46c6bSVlad Yasevich } 163785f46c6bSVlad Yasevich 1638e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1639e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1640e0d7968aSToshiaki Makita { 1641e0d7968aSToshiaki Makita return true; 1642e0d7968aSToshiaki Makita } 1643e0d7968aSToshiaki Makita 164478851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 164511538d03SRoopa Prabhu const struct net_bridge_port *port, 16462594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 164778851988SVlad Yasevich struct sk_buff *skb) 164878851988SVlad Yasevich { 164978851988SVlad Yasevich return skb; 165078851988SVlad Yasevich } 165178851988SVlad Yasevich 1652f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1653169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1654243a2e63SVlad Yasevich { 1655f418af63SNikolay Aleksandrov *changed = false; 1656243a2e63SVlad Yasevich return -EOPNOTSUPP; 1657243a2e63SVlad Yasevich } 1658243a2e63SVlad Yasevich 1659243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1660243a2e63SVlad Yasevich { 1661243a2e63SVlad Yasevich return -EOPNOTSUPP; 1662243a2e63SVlad Yasevich } 1663243a2e63SVlad Yasevich 1664243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1665243a2e63SVlad Yasevich { 1666243a2e63SVlad Yasevich } 1667243a2e63SVlad Yasevich 1668204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1669204177f3SToshiaki Makita { 1670204177f3SToshiaki Makita } 1671204177f3SToshiaki Makita 16725be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 16738580e211SToshiaki Makita { 16745be5a2dfSVlad Yasevich return 0; 16758580e211SToshiaki Makita } 16768580e211SToshiaki Makita 1677f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1678169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1679243a2e63SVlad Yasevich { 1680f418af63SNikolay Aleksandrov *changed = false; 1681243a2e63SVlad Yasevich return -EOPNOTSUPP; 1682243a2e63SVlad Yasevich } 1683243a2e63SVlad Yasevich 1684243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1685243a2e63SVlad Yasevich { 1686243a2e63SVlad Yasevich return -EOPNOTSUPP; 1687243a2e63SVlad Yasevich } 1688243a2e63SVlad Yasevich 1689243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1690243a2e63SVlad Yasevich { 1691243a2e63SVlad Yasevich } 1692243a2e63SVlad Yasevich 16932594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 16942594e906SNikolay Aleksandrov u16 vid) 1695a37b85c9SVlad Yasevich { 1696a37b85c9SVlad Yasevich return NULL; 1697a37b85c9SVlad Yasevich } 1698bc9a25d2SVlad Yasevich 1699169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1700169327d5SPetr Machata struct netlink_ext_ack *extack) 17015be5a2dfSVlad Yasevich { 17025be5a2dfSVlad Yasevich return 0; 17035be5a2dfSVlad Yasevich } 17045be5a2dfSVlad Yasevich 170578851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1706a37b85c9SVlad Yasevich { 1707a37b85c9SVlad Yasevich return 0; 1708a37b85c9SVlad Yasevich } 17092594e906SNikolay Aleksandrov 171077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 171178851988SVlad Yasevich { 17123df6bf45SVlad Yasevich return 0; 171378851988SVlad Yasevich } 17142796d0c6SVlad Yasevich 17157a572964SVladimir Oltean static inline int br_vlan_filter_toggle(struct net_bridge *br, 1716c97f47e3SVladimir Oltean unsigned long val, 1717c97f47e3SVladimir Oltean struct netlink_ext_ack *extack) 1718a7854037SNikolay Aleksandrov { 1719a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1720a7854037SNikolay Aleksandrov } 17212594e906SNikolay Aleksandrov 17222594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 17232594e906SNikolay Aleksandrov u32 filter_mask) 17242594e906SNikolay Aleksandrov { 17252594e906SNikolay Aleksandrov return 0; 17262594e906SNikolay Aleksandrov } 17272594e906SNikolay Aleksandrov 1728bcf2766bSFelix Fietkau static inline void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1729bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1730bcf2766bSFelix Fietkau struct net_device_path *path) 1731bcf2766bSFelix Fietkau { 1732bcf2766bSFelix Fietkau } 1733bcf2766bSFelix Fietkau 1734bcf2766bSFelix Fietkau static inline int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1735bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1736bcf2766bSFelix Fietkau struct net_device_path *path) 1737bcf2766bSFelix Fietkau { 1738bcf2766bSFelix Fietkau return 0; 1739bcf2766bSFelix Fietkau } 1740bcf2766bSFelix Fietkau 17412594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 17422594e906SNikolay Aleksandrov const struct net_bridge *br) 17432594e906SNikolay Aleksandrov { 17442594e906SNikolay Aleksandrov return NULL; 17452594e906SNikolay Aleksandrov } 17462594e906SNikolay Aleksandrov 17472594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 17482594e906SNikolay Aleksandrov const struct net_bridge_port *p) 17492594e906SNikolay Aleksandrov { 17502594e906SNikolay Aleksandrov return NULL; 17512594e906SNikolay Aleksandrov } 1752907b1e6eSNikolay Aleksandrov 1753907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1754907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1755907b1e6eSNikolay Aleksandrov { 1756907b1e6eSNikolay Aleksandrov return NULL; 1757907b1e6eSNikolay Aleksandrov } 1758907b1e6eSNikolay Aleksandrov 1759907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1760907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1761907b1e6eSNikolay Aleksandrov { 1762907b1e6eSNikolay Aleksandrov return NULL; 1763907b1e6eSNikolay Aleksandrov } 1764a60c0903SNikolay Aleksandrov 1765a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1766281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats) 1767a60c0903SNikolay Aleksandrov { 1768a60c0903SNikolay Aleksandrov } 17699c0ec2e7SMike Manning 17709c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 17719c0ec2e7SMike Manning unsigned long event) 17729c0ec2e7SMike Manning { 17739c0ec2e7SMike Manning } 17749c0ec2e7SMike Manning 1775091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 17769c0ec2e7SMike Manning unsigned long event, void *ptr) 17779c0ec2e7SMike Manning { 1778091adf9bSNikolay Aleksandrov return 0; 17799c0ec2e7SMike Manning } 17808dcea187SNikolay Aleksandrov 17818dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 17828dcea187SNikolay Aleksandrov { 17838dcea187SNikolay Aleksandrov } 17848dcea187SNikolay Aleksandrov 17858dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 17868dcea187SNikolay Aleksandrov { 17878dcea187SNikolay Aleksandrov } 1788cf5bddb9SNikolay Aleksandrov 1789cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1790cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1791cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1792cf5bddb9SNikolay Aleksandrov int cmd) 1793cf5bddb9SNikolay Aleksandrov { 1794cf5bddb9SNikolay Aleksandrov } 1795528ae84aSNikolay Aleksandrov 1796528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1797528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1798528ae84aSNikolay Aleksandrov { 1799528ae84aSNikolay Aleksandrov return true; 1800528ae84aSNikolay Aleksandrov } 18014e51bf44SVladimir Oltean 1802c5f6e5ebSVladimir Oltean static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 1803c5f6e5ebSVladimir Oltean { 1804c5f6e5ebSVladimir Oltean return 0; 1805c5f6e5ebSVladimir Oltean } 1806c5f6e5ebSVladimir Oltean 1807243a2e63SVlad Yasevich #endif 1808243a2e63SVlad Yasevich 18097a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 18107a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 181199f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 181299f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1813a1aee20dSPetr Machata bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v, 1814a1aee20dSPetr Machata const struct net_bridge_port *p); 18157a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1816a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1817a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1818a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1819a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1820a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1821a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 182247ecd2dbSNikolay Aleksandrov int br_vlan_rtm_process_global_options(struct net_device *dev, 182347ecd2dbSNikolay Aleksandrov const struct nlattr *attr, 182447ecd2dbSNikolay Aleksandrov int cmd, 182547ecd2dbSNikolay Aleksandrov struct netlink_ext_ack *extack); 1826743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr, 1827743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *r_end); 1828743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range, 1829743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *v_opts); 1830a580c76dSNikolay Aleksandrov 1831a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1832a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1833a580c76dSNikolay Aleksandrov { 1834a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1835a580c76dSNikolay Aleksandrov } 1836a580c76dSNikolay Aleksandrov 1837a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1838a580c76dSNikolay Aleksandrov { 1839a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1840a580c76dSNikolay Aleksandrov } 1841a580c76dSNikolay Aleksandrov 1842a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1843a580c76dSNikolay Aleksandrov { 1844a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1845a580c76dSNikolay Aleksandrov } 1846a580c76dSNikolay Aleksandrov 1847a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1848a580c76dSNikolay Aleksandrov u8 state) 1849a580c76dSNikolay Aleksandrov { 1850a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1851a580c76dSNikolay Aleksandrov } 1852a580c76dSNikolay Aleksandrov 1853a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1854a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1855a580c76dSNikolay Aleksandrov { 1856a580c76dSNikolay Aleksandrov switch (state) { 1857a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1858a580c76dSNikolay Aleksandrov return learn_allow; 1859a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1860a580c76dSNikolay Aleksandrov return true; 1861a580c76dSNikolay Aleksandrov default: 1862a580c76dSNikolay Aleksandrov return false; 1863a580c76dSNikolay Aleksandrov } 1864a580c76dSNikolay Aleksandrov } 18657a53e718SNikolay Aleksandrov #endif 18667a53e718SNikolay Aleksandrov 1867ec7328b5STobias Waldekranz /* br_mst.c */ 1868ec7328b5STobias Waldekranz #ifdef CONFIG_BRIDGE_VLAN_FILTERING 1869ec7328b5STobias Waldekranz DECLARE_STATIC_KEY_FALSE(br_mst_used); 1870ec7328b5STobias Waldekranz static inline bool br_mst_is_enabled(struct net_bridge *br) 1871ec7328b5STobias Waldekranz { 1872ec7328b5STobias Waldekranz return static_branch_unlikely(&br_mst_used) && 1873ec7328b5STobias Waldekranz br_opt_get(br, BROPT_MST_ENABLED); 1874ec7328b5STobias Waldekranz } 1875ec7328b5STobias Waldekranz 1876ec7328b5STobias Waldekranz int br_mst_set_state(struct net_bridge_port *p, u16 msti, u8 state, 1877ec7328b5STobias Waldekranz struct netlink_ext_ack *extack); 18788c678d60STobias Waldekranz int br_mst_vlan_set_msti(struct net_bridge_vlan *v, u16 msti); 1879ec7328b5STobias Waldekranz void br_mst_vlan_init_state(struct net_bridge_vlan *v); 1880ec7328b5STobias Waldekranz int br_mst_set_enabled(struct net_bridge *br, bool on, 1881ec7328b5STobias Waldekranz struct netlink_ext_ack *extack); 1882122c2948STobias Waldekranz size_t br_mst_info_size(const struct net_bridge_vlan_group *vg); 1883122c2948STobias Waldekranz int br_mst_fill_info(struct sk_buff *skb, 1884122c2948STobias Waldekranz const struct net_bridge_vlan_group *vg); 1885122c2948STobias Waldekranz int br_mst_process(struct net_bridge_port *p, const struct nlattr *mst_attr, 1886122c2948STobias Waldekranz struct netlink_ext_ack *extack); 1887ec7328b5STobias Waldekranz #else 1888ec7328b5STobias Waldekranz static inline bool br_mst_is_enabled(struct net_bridge *br) 1889ec7328b5STobias Waldekranz { 1890ec7328b5STobias Waldekranz return false; 1891ec7328b5STobias Waldekranz } 1892ec7328b5STobias Waldekranz 1893ec7328b5STobias Waldekranz static inline int br_mst_set_state(struct net_bridge_port *p, u16 msti, 1894ec7328b5STobias Waldekranz u8 state, struct netlink_ext_ack *extack) 1895ec7328b5STobias Waldekranz { 1896ec7328b5STobias Waldekranz return -EOPNOTSUPP; 1897ec7328b5STobias Waldekranz } 1898ec7328b5STobias Waldekranz 1899ec7328b5STobias Waldekranz static inline int br_mst_set_enabled(struct net_bridge *br, bool on, 1900ec7328b5STobias Waldekranz struct netlink_ext_ack *extack) 1901ec7328b5STobias Waldekranz { 1902ec7328b5STobias Waldekranz return -EOPNOTSUPP; 1903ec7328b5STobias Waldekranz } 1904122c2948STobias Waldekranz 1905122c2948STobias Waldekranz static inline size_t br_mst_info_size(const struct net_bridge_vlan_group *vg) 1906122c2948STobias Waldekranz { 1907122c2948STobias Waldekranz return 0; 1908122c2948STobias Waldekranz } 1909122c2948STobias Waldekranz 1910122c2948STobias Waldekranz static inline int br_mst_fill_info(struct sk_buff *skb, 1911122c2948STobias Waldekranz const struct net_bridge_vlan_group *vg) 1912122c2948STobias Waldekranz { 1913122c2948STobias Waldekranz return -EOPNOTSUPP; 1914122c2948STobias Waldekranz } 1915122c2948STobias Waldekranz 1916122c2948STobias Waldekranz static inline int br_mst_process(struct net_bridge_port *p, 1917122c2948STobias Waldekranz const struct nlattr *mst_attr, 1918122c2948STobias Waldekranz struct netlink_ext_ack *extack) 1919122c2948STobias Waldekranz { 1920122c2948STobias Waldekranz return -EOPNOTSUPP; 1921122c2948STobias Waldekranz } 1922ec7328b5STobias Waldekranz #endif 1923ec7328b5STobias Waldekranz 19241a4ba64dSPablo Neira Ayuso struct nf_br_ops { 19251a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 19261a4ba64dSPablo Neira Ayuso }; 19271a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 19281a4ba64dSPablo Neira Ayuso 19291da177e4SLinus Torvalds /* br_netfilter.c */ 193034666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 193134666d46SPablo Neira Ayuso int br_nf_core_init(void); 193234666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1933348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1934c0909713SStephen Hemminger #else 193534666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 193634666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 19374adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1938c0909713SStephen Hemminger #endif 19391da177e4SLinus Torvalds 19401da177e4SLinus Torvalds /* br_stp.c */ 1941775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1942348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1943348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1944348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 19451da177e4SLinus Torvalds 1946348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1947348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1948348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1949348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 195082dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 19519e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 195214f98f25Sstephen hemminger 195314f98f25Sstephen hemminger 19541da177e4SLinus Torvalds /* br_stp_if.c */ 1955348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1956348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1957419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1958419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1959348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1960348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1961348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1962348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1963348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1964348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1965348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1966348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 19671da177e4SLinus Torvalds 19681da177e4SLinus Torvalds /* br_stp_bpdu.c */ 19697c85fbf0SPatrick McHardy struct stp_proto; 1970348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 19717c85fbf0SPatrick McHardy struct net_device *dev); 19721da177e4SLinus Torvalds 19731da177e4SLinus Torvalds /* br_stp_timer.c */ 1974348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1975348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1976348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 19771da177e4SLinus Torvalds 19781da177e4SLinus Torvalds /* br.c */ 1979e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1980da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1981da678292SMichał Mirosław #endif 19821da177e4SLinus Torvalds 198365369933SHoratiu Vultur /* br_mrp.c */ 198465369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 198565369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 198665369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 198765369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 198865369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1989df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 199065369933SHoratiu Vultur #else 199165369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 199265369933SHoratiu Vultur struct nlattr *attr, int cmd, 199365369933SHoratiu Vultur struct netlink_ext_ack *extack) 199465369933SHoratiu Vultur { 199565369933SHoratiu Vultur return -EOPNOTSUPP; 199665369933SHoratiu Vultur } 199765369933SHoratiu Vultur 199865369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 199965369933SHoratiu Vultur { 20008741e184SJason Yan return false; 200165369933SHoratiu Vultur } 200265369933SHoratiu Vultur 200365369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 200465369933SHoratiu Vultur struct net_bridge_port *p) 200565369933SHoratiu Vultur { 200665369933SHoratiu Vultur } 2007df42ef22SHoratiu Vultur 2008df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 2009df42ef22SHoratiu Vultur { 2010df42ef22SHoratiu Vultur return 0; 2011df42ef22SHoratiu Vultur } 2012df42ef22SHoratiu Vultur 201365369933SHoratiu Vultur #endif 201465369933SHoratiu Vultur 20152be665c3SHenrik Bjoernlund /* br_cfm.c */ 201686a14b79SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 20172be665c3SHenrik Bjoernlund int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 20182be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 20192be665c3SHenrik Bjoernlund bool br_cfm_created(struct net_bridge *br); 202086a14b79SHenrik Bjoernlund void br_cfm_port_del(struct net_bridge *br, struct net_bridge_port *p); 20215e312fc0SHenrik Bjoernlund int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br); 2022b6d0425bSHenrik Bjoernlund int br_cfm_status_fill_info(struct sk_buff *skb, 2023b6d0425bSHenrik Bjoernlund struct net_bridge *br, 2024b6d0425bSHenrik Bjoernlund bool getlink); 2025b6d0425bSHenrik Bjoernlund int br_cfm_mep_count(struct net_bridge *br, u32 *count); 2026b6d0425bSHenrik Bjoernlund int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count); 202786a14b79SHenrik Bjoernlund #else 20282be665c3SHenrik Bjoernlund static inline int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 20292be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, 20302be665c3SHenrik Bjoernlund struct netlink_ext_ack *extack) 20312be665c3SHenrik Bjoernlund { 20322be665c3SHenrik Bjoernlund return -EOPNOTSUPP; 20332be665c3SHenrik Bjoernlund } 20342be665c3SHenrik Bjoernlund 20352be665c3SHenrik Bjoernlund static inline bool br_cfm_created(struct net_bridge *br) 20362be665c3SHenrik Bjoernlund { 20372be665c3SHenrik Bjoernlund return false; 20382be665c3SHenrik Bjoernlund } 20392be665c3SHenrik Bjoernlund 204086a14b79SHenrik Bjoernlund static inline void br_cfm_port_del(struct net_bridge *br, 204186a14b79SHenrik Bjoernlund struct net_bridge_port *p) 204286a14b79SHenrik Bjoernlund { 204386a14b79SHenrik Bjoernlund } 20445e312fc0SHenrik Bjoernlund 20455e312fc0SHenrik Bjoernlund static inline int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br) 20465e312fc0SHenrik Bjoernlund { 20475e312fc0SHenrik Bjoernlund return -EOPNOTSUPP; 20485e312fc0SHenrik Bjoernlund } 2049e77824d8SHenrik Bjoernlund 2050b6d0425bSHenrik Bjoernlund static inline int br_cfm_status_fill_info(struct sk_buff *skb, 2051b6d0425bSHenrik Bjoernlund struct net_bridge *br, 2052b6d0425bSHenrik Bjoernlund bool getlink) 2053b6d0425bSHenrik Bjoernlund { 2054b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 2055b6d0425bSHenrik Bjoernlund } 2056b6d0425bSHenrik Bjoernlund 2057b6d0425bSHenrik Bjoernlund static inline int br_cfm_mep_count(struct net_bridge *br, u32 *count) 2058b6d0425bSHenrik Bjoernlund { 2059829e050eSIvan Vecera *count = 0; 2060b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 2061b6d0425bSHenrik Bjoernlund } 2062b6d0425bSHenrik Bjoernlund 2063b6d0425bSHenrik Bjoernlund static inline int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count) 2064e77824d8SHenrik Bjoernlund { 2065829e050eSIvan Vecera *count = 0; 2066e77824d8SHenrik Bjoernlund return -EOPNOTSUPP; 2067e77824d8SHenrik Bjoernlund } 206886a14b79SHenrik Bjoernlund #endif 206986a14b79SHenrik Bjoernlund 207011dc1f36SStephen Hemminger /* br_netlink.c */ 2071149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 2072348662a1SJoe Perches int br_netlink_init(void); 2073348662a1SJoe Perches void br_netlink_fini(void); 207492899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 207592899063SNikolay Aleksandrov const struct net_bridge_port *port); 2076b6d0425bSHenrik Bjoernlund void br_info_notify(int event, const struct net_bridge *br, 2077b6d0425bSHenrik Bjoernlund const struct net_bridge_port *port, u32 filter); 20782fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 20792fd527b7SPetr Machata struct netlink_ext_ack *extack); 2080add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 2081348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 208246c264daSNicolas Dichtel u32 filter_mask, int nlflags); 2083f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 2084f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 2085f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 2086f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 2087f26b2965SNikolay Aleksandrov bool *changed, 2088f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 208911dc1f36SStephen Hemminger 20901da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 20911da177e4SLinus Torvalds /* br_sysfs_if.c */ 209252cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 2093348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 2094348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 20951da177e4SLinus Torvalds 20961da177e4SLinus Torvalds /* br_sysfs_br.c */ 2097348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 2098348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 20991da177e4SLinus Torvalds 21001da177e4SLinus Torvalds #else 21011da177e4SLinus Torvalds 21020cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 21030cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 21040cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 21050cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 21061da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 21071da177e4SLinus Torvalds 21086bc506b4SIdo Schimmel /* br_switchdev.c */ 21096bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2110957e2235SVladimir Oltean int br_switchdev_port_offload(struct net_bridge_port *p, 2111957e2235SVladimir Oltean struct net_device *dev, const void *ctx, 2112957e2235SVladimir Oltean struct notifier_block *atomic_nb, 2113957e2235SVladimir Oltean struct notifier_block *blocking_nb, 2114957e2235SVladimir Oltean bool tx_fwd_offload, 2115957e2235SVladimir Oltean struct netlink_ext_ack *extack); 2116957e2235SVladimir Oltean 2117957e2235SVladimir Oltean void br_switchdev_port_unoffload(struct net_bridge_port *p, const void *ctx, 2118957e2235SVladimir Oltean struct notifier_block *atomic_nb, 2119957e2235SVladimir Oltean struct notifier_block *blocking_nb); 2120957e2235SVladimir Oltean 212147211192STobias Waldekranz bool br_switchdev_frame_uses_tx_fwd_offload(struct sk_buff *skb); 212247211192STobias Waldekranz 2123c5381154SVladimir Oltean void br_switchdev_frame_set_offload_fwd_mark(struct sk_buff *skb); 2124c5381154SVladimir Oltean 212547211192STobias Waldekranz void nbp_switchdev_frame_mark_tx_fwd_offload(const struct net_bridge_port *p, 212647211192STobias Waldekranz struct sk_buff *skb); 212747211192STobias Waldekranz void nbp_switchdev_frame_mark_tx_fwd_to_hwdom(const struct net_bridge_port *p, 212847211192STobias Waldekranz struct sk_buff *skb); 21296bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 21306bc506b4SIdo Schimmel struct sk_buff *skb); 21316bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 21326bc506b4SIdo Schimmel const struct sk_buff *skb); 21333922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 21343922285dSArkadi Sharshevsky unsigned long flags, 2135078bbb85SVladimir Oltean unsigned long mask, 2136078bbb85SVladimir Oltean struct netlink_ext_ack *extack); 21376eb38bf8STobias Waldekranz void br_switchdev_fdb_notify(struct net_bridge *br, 21386eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type); 2139ae039350SVladimir Oltean void br_switchdev_mdb_notify(struct net_device *dev, 2140ae039350SVladimir Oltean struct net_bridge_mdb_entry *mp, 2141ae039350SVladimir Oltean struct net_bridge_port_group *pg, 2142ae039350SVladimir Oltean int type); 2143169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 21448d23a54fSVladimir Oltean bool changed, struct netlink_ext_ack *extack); 2145d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 214685826610STobias Waldekranz void br_switchdev_init(struct net_bridge *br); 2147f1c2eddfSIdo Schimmel 2148f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 2149f1c2eddfSIdo Schimmel { 2150f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 2151f1c2eddfSIdo Schimmel } 21526bc506b4SIdo Schimmel #else 2153957e2235SVladimir Oltean static inline int 2154957e2235SVladimir Oltean br_switchdev_port_offload(struct net_bridge_port *p, 2155957e2235SVladimir Oltean struct net_device *dev, const void *ctx, 2156957e2235SVladimir Oltean struct notifier_block *atomic_nb, 2157957e2235SVladimir Oltean struct notifier_block *blocking_nb, 2158957e2235SVladimir Oltean bool tx_fwd_offload, 2159957e2235SVladimir Oltean struct netlink_ext_ack *extack) 2160957e2235SVladimir Oltean { 2161957e2235SVladimir Oltean return -EOPNOTSUPP; 2162957e2235SVladimir Oltean } 2163957e2235SVladimir Oltean 2164957e2235SVladimir Oltean static inline void 2165957e2235SVladimir Oltean br_switchdev_port_unoffload(struct net_bridge_port *p, const void *ctx, 2166957e2235SVladimir Oltean struct notifier_block *atomic_nb, 2167957e2235SVladimir Oltean struct notifier_block *blocking_nb) 2168957e2235SVladimir Oltean { 2169957e2235SVladimir Oltean } 2170957e2235SVladimir Oltean 217147211192STobias Waldekranz static inline bool br_switchdev_frame_uses_tx_fwd_offload(struct sk_buff *skb) 217247211192STobias Waldekranz { 217347211192STobias Waldekranz return false; 217447211192STobias Waldekranz } 217547211192STobias Waldekranz 2176c5381154SVladimir Oltean static inline void br_switchdev_frame_set_offload_fwd_mark(struct sk_buff *skb) 2177c5381154SVladimir Oltean { 2178c5381154SVladimir Oltean } 2179c5381154SVladimir Oltean 218047211192STobias Waldekranz static inline void 218147211192STobias Waldekranz nbp_switchdev_frame_mark_tx_fwd_offload(const struct net_bridge_port *p, 218247211192STobias Waldekranz struct sk_buff *skb) 218347211192STobias Waldekranz { 218447211192STobias Waldekranz } 218547211192STobias Waldekranz 218647211192STobias Waldekranz static inline void 218747211192STobias Waldekranz nbp_switchdev_frame_mark_tx_fwd_to_hwdom(const struct net_bridge_port *p, 218847211192STobias Waldekranz struct sk_buff *skb) 218947211192STobias Waldekranz { 219047211192STobias Waldekranz } 219147211192STobias Waldekranz 21926bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 21936bc506b4SIdo Schimmel struct sk_buff *skb) 21946bc506b4SIdo Schimmel { 21956bc506b4SIdo Schimmel } 21966bc506b4SIdo Schimmel 21976bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 21986bc506b4SIdo Schimmel const struct sk_buff *skb) 21996bc506b4SIdo Schimmel { 22006bc506b4SIdo Schimmel return true; 22016bc506b4SIdo Schimmel } 22023922285dSArkadi Sharshevsky 22033922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 22043922285dSArkadi Sharshevsky unsigned long flags, 2205078bbb85SVladimir Oltean unsigned long mask, 2206078bbb85SVladimir Oltean struct netlink_ext_ack *extack) 22073922285dSArkadi Sharshevsky { 22083922285dSArkadi Sharshevsky return 0; 22093922285dSArkadi Sharshevsky } 22106b26b51bSArkadi Sharshevsky 22118d23a54fSVladimir Oltean static inline int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, 22128d23a54fSVladimir Oltean u16 flags, bool changed, 2213169327d5SPetr Machata struct netlink_ext_ack *extack) 2214d66e4348SPetr Machata { 2215d66e4348SPetr Machata return -EOPNOTSUPP; 2216d66e4348SPetr Machata } 2217d66e4348SPetr Machata 2218d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 2219d66e4348SPetr Machata { 2220d66e4348SPetr Machata return -EOPNOTSUPP; 2221d66e4348SPetr Machata } 2222d66e4348SPetr Machata 22236b26b51bSArkadi Sharshevsky static inline void 22246eb38bf8STobias Waldekranz br_switchdev_fdb_notify(struct net_bridge *br, 22256eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type) 22266b26b51bSArkadi Sharshevsky { 22276b26b51bSArkadi Sharshevsky } 2228f1c2eddfSIdo Schimmel 2229ae039350SVladimir Oltean static inline void br_switchdev_mdb_notify(struct net_device *dev, 2230ae039350SVladimir Oltean struct net_bridge_mdb_entry *mp, 2231ae039350SVladimir Oltean struct net_bridge_port_group *pg, 2232ae039350SVladimir Oltean int type) 2233ae039350SVladimir Oltean { 2234ae039350SVladimir Oltean } 2235ae039350SVladimir Oltean 2236f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 2237f1c2eddfSIdo Schimmel { 2238f1c2eddfSIdo Schimmel } 223985826610STobias Waldekranz 224085826610STobias Waldekranz static inline void br_switchdev_init(struct net_bridge *br) 224185826610STobias Waldekranz { 224285826610STobias Waldekranz } 224385826610STobias Waldekranz 22446bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 22456bc506b4SIdo Schimmel 2246057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 2247821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 2248057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 2249057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 2250ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 2251ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 2252ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 22533aca683eSIdo Schimmel bool br_is_neigh_suppress_enabled(const struct net_bridge_port *p, u16 vid); 22541da177e4SLinus Torvalds #endif 2255