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3aca683e06
Currently, there are various places in the bridge data path that check
whether neighbor suppression is enabled on a given bridge port.
As a preparation for per-{Port, VLAN} neighbor suppression, encapsulate
this logic in a function and pass the VLAN ID of the packet as an
argument.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2225 lines
63 KiB
C
2225 lines
63 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Linux ethernet bridge
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*
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* Authors:
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* Lennert Buytenhek <buytenh@gnu.org>
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*/
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#ifndef _BR_PRIVATE_H
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#define _BR_PRIVATE_H
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#include <linux/netdevice.h>
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#include <linux/if_bridge.h>
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#include <linux/netpoll.h>
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#include <linux/u64_stats_sync.h>
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#include <net/route.h>
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#include <net/ip6_fib.h>
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#include <linux/if_vlan.h>
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#include <linux/rhashtable.h>
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#include <linux/refcount.h>
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#define BR_HASH_BITS 8
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#define BR_HASH_SIZE (1 << BR_HASH_BITS)
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#define BR_HOLD_TIME (1*HZ)
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#define BR_PORT_BITS 10
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#define BR_MAX_PORTS (1<<BR_PORT_BITS)
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#define BR_MULTICAST_DEFAULT_HASH_MAX 4096
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#define BR_MULTICAST_QUERY_INTVL_MIN msecs_to_jiffies(1000)
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#define BR_MULTICAST_STARTUP_QUERY_INTVL_MIN BR_MULTICAST_QUERY_INTVL_MIN
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#define BR_HWDOM_MAX BITS_PER_LONG
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#define BR_VERSION "2.3"
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/* Control of forwarding link local multicast */
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#define BR_GROUPFWD_DEFAULT 0
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/* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */
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enum {
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BR_GROUPFWD_STP = BIT(0),
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BR_GROUPFWD_MACPAUSE = BIT(1),
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BR_GROUPFWD_LACP = BIT(2),
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};
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#define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \
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BR_GROUPFWD_LACP)
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/* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */
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#define BR_GROUPFWD_8021AD 0xB801u
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/* Path to usermode spanning tree program */
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#define BR_STP_PROG "/sbin/bridge-stp"
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#define BR_FDB_NOTIFY_SETTABLE_BITS (FDB_NOTIFY_BIT | FDB_NOTIFY_INACTIVE_BIT)
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typedef struct bridge_id bridge_id;
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typedef struct mac_addr mac_addr;
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typedef __u16 port_id;
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struct bridge_id {
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unsigned char prio[2];
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unsigned char addr[ETH_ALEN];
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};
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struct mac_addr {
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unsigned char addr[ETH_ALEN];
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};
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#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
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/* our own querier */
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struct bridge_mcast_own_query {
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struct timer_list timer;
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u32 startup_sent;
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};
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/* other querier */
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struct bridge_mcast_other_query {
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struct timer_list timer;
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unsigned long delay_time;
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};
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/* selected querier */
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struct bridge_mcast_querier {
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struct br_ip addr;
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int port_ifidx;
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seqcount_spinlock_t seq;
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};
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/* IGMP/MLD statistics */
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struct bridge_mcast_stats {
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struct br_mcast_stats mstats;
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struct u64_stats_sync syncp;
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};
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struct br_mdb_src_entry {
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struct br_ip addr;
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};
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struct br_mdb_config {
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struct net_bridge *br;
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struct net_bridge_port *p;
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struct br_mdb_entry *entry;
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struct br_ip group;
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bool src_entry;
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u8 filter_mode;
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u16 nlflags;
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struct br_mdb_src_entry *src_entries;
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int num_src_entries;
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u8 rt_protocol;
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};
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#endif
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/* net_bridge_mcast_port must be always defined due to forwarding stubs */
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struct net_bridge_mcast_port {
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#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
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struct net_bridge_port *port;
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struct net_bridge_vlan *vlan;
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struct bridge_mcast_own_query ip4_own_query;
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struct timer_list ip4_mc_router_timer;
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struct hlist_node ip4_rlist;
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#if IS_ENABLED(CONFIG_IPV6)
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struct bridge_mcast_own_query ip6_own_query;
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struct timer_list ip6_mc_router_timer;
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struct hlist_node ip6_rlist;
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#endif /* IS_ENABLED(CONFIG_IPV6) */
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unsigned char multicast_router;
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u32 mdb_n_entries;
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u32 mdb_max_entries;
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#endif /* CONFIG_BRIDGE_IGMP_SNOOPING */
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};
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/* net_bridge_mcast must be always defined due to forwarding stubs */
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struct net_bridge_mcast {
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#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
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struct net_bridge *br;
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struct net_bridge_vlan *vlan;
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u32 multicast_last_member_count;
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u32 multicast_startup_query_count;
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u8 multicast_querier;
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u8 multicast_igmp_version;
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u8 multicast_router;
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#if IS_ENABLED(CONFIG_IPV6)
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u8 multicast_mld_version;
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#endif
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unsigned long multicast_last_member_interval;
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unsigned long multicast_membership_interval;
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unsigned long multicast_querier_interval;
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unsigned long multicast_query_interval;
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unsigned long multicast_query_response_interval;
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unsigned long multicast_startup_query_interval;
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struct hlist_head ip4_mc_router_list;
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struct timer_list ip4_mc_router_timer;
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struct bridge_mcast_other_query ip4_other_query;
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struct bridge_mcast_own_query ip4_own_query;
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struct bridge_mcast_querier ip4_querier;
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#if IS_ENABLED(CONFIG_IPV6)
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struct hlist_head ip6_mc_router_list;
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struct timer_list ip6_mc_router_timer;
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struct bridge_mcast_other_query ip6_other_query;
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struct bridge_mcast_own_query ip6_own_query;
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struct bridge_mcast_querier ip6_querier;
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#endif /* IS_ENABLED(CONFIG_IPV6) */
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#endif /* CONFIG_BRIDGE_IGMP_SNOOPING */
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};
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struct br_tunnel_info {
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__be64 tunnel_id;
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struct metadata_dst __rcu *tunnel_dst;
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};
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/* private vlan flags */
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enum {
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BR_VLFLAG_PER_PORT_STATS = BIT(0),
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BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1),
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BR_VLFLAG_MCAST_ENABLED = BIT(2),
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BR_VLFLAG_GLOBAL_MCAST_ENABLED = BIT(3),
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BR_VLFLAG_NEIGH_SUPPRESS_ENABLED = BIT(4),
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};
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/**
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* struct net_bridge_vlan - per-vlan entry
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*
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* @vnode: rhashtable member
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* @vid: VLAN id
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* @flags: bridge vlan flags
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* @priv_flags: private (in-kernel) bridge vlan flags
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* @state: STP state (e.g. blocking, learning, forwarding)
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* @stats: per-cpu VLAN statistics
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* @br: if MASTER flag set, this points to a bridge struct
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* @port: if MASTER flag unset, this points to a port struct
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* @refcnt: if MASTER flag set, this is bumped for each port referencing it
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* @brvlan: if MASTER flag unset, this points to the global per-VLAN context
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* for this VLAN entry
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* @br_mcast_ctx: if MASTER flag set, this is the global vlan multicast context
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* @port_mcast_ctx: if MASTER flag unset, this is the per-port/vlan multicast
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* context
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* @msti: if MASTER flag set, this holds the VLANs MST instance
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* @vlist: sorted list of VLAN entries
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* @rcu: used for entry destruction
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*
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* This structure is shared between the global per-VLAN entries contained in
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* the bridge rhashtable and the local per-port per-VLAN entries contained in
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* the port's rhashtable. The union entries should be interpreted depending on
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* the entry flags that are set.
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*/
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struct net_bridge_vlan {
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struct rhash_head vnode;
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struct rhash_head tnode;
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u16 vid;
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u16 flags;
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u16 priv_flags;
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u8 state;
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struct pcpu_sw_netstats __percpu *stats;
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union {
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struct net_bridge *br;
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struct net_bridge_port *port;
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};
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union {
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refcount_t refcnt;
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struct net_bridge_vlan *brvlan;
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};
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struct br_tunnel_info tinfo;
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union {
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struct net_bridge_mcast br_mcast_ctx;
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struct net_bridge_mcast_port port_mcast_ctx;
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};
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u16 msti;
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struct list_head vlist;
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struct rcu_head rcu;
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};
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/**
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* struct net_bridge_vlan_group
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*
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* @vlan_hash: VLAN entry rhashtable
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* @vlan_list: sorted VLAN entry list
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* @num_vlans: number of total VLAN entries
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* @pvid: PVID VLAN id
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* @pvid_state: PVID's STP state (e.g. forwarding, learning, blocking)
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*
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* IMPORTANT: Be careful when checking if there're VLAN entries using list
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* primitives because the bridge can have entries in its list which
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* are just for global context but not for filtering, i.e. they have
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* the master flag set but not the brentry flag. If you have to check
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* if there're "real" entries in the bridge please test @num_vlans
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*/
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struct net_bridge_vlan_group {
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struct rhashtable vlan_hash;
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struct rhashtable tunnel_hash;
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struct list_head vlan_list;
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u16 num_vlans;
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u16 pvid;
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u8 pvid_state;
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};
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/* bridge fdb flags */
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enum {
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BR_FDB_LOCAL,
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BR_FDB_STATIC,
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BR_FDB_STICKY,
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BR_FDB_ADDED_BY_USER,
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BR_FDB_ADDED_BY_EXT_LEARN,
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BR_FDB_OFFLOADED,
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BR_FDB_NOTIFY,
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BR_FDB_NOTIFY_INACTIVE,
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BR_FDB_LOCKED,
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};
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struct net_bridge_fdb_key {
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mac_addr addr;
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u16 vlan_id;
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};
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struct net_bridge_fdb_entry {
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struct rhash_head rhnode;
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struct net_bridge_port *dst;
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struct net_bridge_fdb_key key;
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struct hlist_node fdb_node;
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unsigned long flags;
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/* write-heavy members should not affect lookups */
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unsigned long updated ____cacheline_aligned_in_smp;
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unsigned long used;
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struct rcu_head rcu;
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};
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struct net_bridge_fdb_flush_desc {
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unsigned long flags;
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unsigned long flags_mask;
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int port_ifindex;
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u16 vlan_id;
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};
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#define MDB_PG_FLAGS_PERMANENT BIT(0)
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#define MDB_PG_FLAGS_OFFLOAD BIT(1)
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#define MDB_PG_FLAGS_FAST_LEAVE BIT(2)
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#define MDB_PG_FLAGS_STAR_EXCL BIT(3)
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#define MDB_PG_FLAGS_BLOCKED BIT(4)
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#define PG_SRC_ENT_LIMIT 32
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#define BR_SGRP_F_DELETE BIT(0)
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#define BR_SGRP_F_SEND BIT(1)
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#define BR_SGRP_F_INSTALLED BIT(2)
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#define BR_SGRP_F_USER_ADDED BIT(3)
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struct net_bridge_mcast_gc {
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struct hlist_node gc_node;
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void (*destroy)(struct net_bridge_mcast_gc *gc);
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};
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struct net_bridge_group_src {
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struct hlist_node node;
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struct br_ip addr;
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struct net_bridge_port_group *pg;
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u8 flags;
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u8 src_query_rexmit_cnt;
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struct timer_list timer;
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struct net_bridge *br;
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struct net_bridge_mcast_gc mcast_gc;
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struct rcu_head rcu;
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};
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struct net_bridge_port_group_sg_key {
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struct net_bridge_port *port;
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struct br_ip addr;
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};
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struct net_bridge_port_group {
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struct net_bridge_port_group __rcu *next;
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struct net_bridge_port_group_sg_key key;
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unsigned char eth_addr[ETH_ALEN] __aligned(2);
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unsigned char flags;
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unsigned char filter_mode;
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unsigned char grp_query_rexmit_cnt;
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unsigned char rt_protocol;
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struct hlist_head src_list;
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unsigned int src_ents;
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struct timer_list timer;
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struct timer_list rexmit_timer;
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struct hlist_node mglist;
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struct rb_root eht_set_tree;
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struct rb_root eht_host_tree;
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struct rhash_head rhnode;
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struct net_bridge_mcast_gc mcast_gc;
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struct rcu_head rcu;
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};
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struct net_bridge_mdb_entry {
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struct rhash_head rhnode;
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struct net_bridge *br;
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struct net_bridge_port_group __rcu *ports;
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struct br_ip addr;
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bool host_joined;
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struct timer_list timer;
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struct hlist_node mdb_node;
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struct net_bridge_mcast_gc mcast_gc;
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struct rcu_head rcu;
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};
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struct net_bridge_port {
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struct net_bridge *br;
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struct net_device *dev;
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netdevice_tracker dev_tracker;
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struct list_head list;
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unsigned long flags;
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#ifdef CONFIG_BRIDGE_VLAN_FILTERING
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struct net_bridge_vlan_group __rcu *vlgrp;
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#endif
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struct net_bridge_port __rcu *backup_port;
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/* STP */
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u8 priority;
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u8 state;
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u16 port_no;
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unsigned char topology_change_ack;
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unsigned char config_pending;
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port_id port_id;
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port_id designated_port;
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bridge_id designated_root;
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bridge_id designated_bridge;
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u32 path_cost;
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u32 designated_cost;
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unsigned long designated_age;
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struct timer_list forward_delay_timer;
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struct timer_list hold_timer;
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struct timer_list message_age_timer;
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struct kobject kobj;
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struct rcu_head rcu;
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struct net_bridge_mcast_port multicast_ctx;
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#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
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struct bridge_mcast_stats __percpu *mcast_stats;
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u32 multicast_eht_hosts_limit;
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u32 multicast_eht_hosts_cnt;
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struct hlist_head mglist;
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#endif
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#ifdef CONFIG_SYSFS
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char sysfs_name[IFNAMSIZ];
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#endif
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#ifdef CONFIG_NET_POLL_CONTROLLER
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struct netpoll *np;
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#endif
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#ifdef CONFIG_NET_SWITCHDEV
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/* Identifier used to group ports that share the same switchdev
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* hardware domain.
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*/
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int hwdom;
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int offload_count;
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struct netdev_phys_item_id ppid;
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#endif
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u16 group_fwd_mask;
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u16 backup_redirected_cnt;
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struct bridge_stp_xstats stp_xstats;
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};
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#define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj)
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#define br_auto_port(p) ((p)->flags & BR_AUTO_MASK)
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#define br_promisc_port(p) ((p)->flags & BR_PROMISC)
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static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev)
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{
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return rcu_dereference(dev->rx_handler_data);
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}
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static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev)
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{
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return netif_is_bridge_port(dev) ?
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rtnl_dereference(dev->rx_handler_data) : NULL;
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}
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static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev)
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{
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return netif_is_bridge_port(dev) ?
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rcu_dereference_rtnl(dev->rx_handler_data) : NULL;
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}
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enum net_bridge_opts {
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BROPT_VLAN_ENABLED,
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BROPT_VLAN_STATS_ENABLED,
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BROPT_NF_CALL_IPTABLES,
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BROPT_NF_CALL_IP6TABLES,
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BROPT_NF_CALL_ARPTABLES,
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BROPT_GROUP_ADDR_SET,
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BROPT_MULTICAST_ENABLED,
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BROPT_MULTICAST_QUERY_USE_IFADDR,
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BROPT_MULTICAST_STATS_ENABLED,
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BROPT_HAS_IPV6_ADDR,
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BROPT_NEIGH_SUPPRESS_ENABLED,
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BROPT_MTU_SET_BY_USER,
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BROPT_VLAN_STATS_PER_PORT,
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BROPT_NO_LL_LEARN,
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BROPT_VLAN_BRIDGE_BINDING,
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BROPT_MCAST_VLAN_SNOOPING_ENABLED,
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BROPT_MST_ENABLED,
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};
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struct net_bridge {
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spinlock_t lock;
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spinlock_t hash_lock;
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struct hlist_head frame_type_list;
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struct net_device *dev;
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unsigned long options;
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/* These fields are accessed on each packet */
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#ifdef CONFIG_BRIDGE_VLAN_FILTERING
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__be16 vlan_proto;
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u16 default_pvid;
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struct net_bridge_vlan_group __rcu *vlgrp;
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#endif
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struct rhashtable fdb_hash_tbl;
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struct list_head port_list;
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#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
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|
union {
|
|
struct rtable fake_rtable;
|
|
struct rt6_info fake_rt6_info;
|
|
};
|
|
#endif
|
|
u16 group_fwd_mask;
|
|
u16 group_fwd_mask_required;
|
|
|
|
/* STP */
|
|
bridge_id designated_root;
|
|
bridge_id bridge_id;
|
|
unsigned char topology_change;
|
|
unsigned char topology_change_detected;
|
|
u16 root_port;
|
|
unsigned long max_age;
|
|
unsigned long hello_time;
|
|
unsigned long forward_delay;
|
|
unsigned long ageing_time;
|
|
unsigned long bridge_max_age;
|
|
unsigned long bridge_hello_time;
|
|
unsigned long bridge_forward_delay;
|
|
unsigned long bridge_ageing_time;
|
|
u32 root_path_cost;
|
|
|
|
u8 group_addr[ETH_ALEN];
|
|
|
|
enum {
|
|
BR_NO_STP, /* no spanning tree */
|
|
BR_KERNEL_STP, /* old STP in kernel */
|
|
BR_USER_STP, /* new RSTP in userspace */
|
|
} stp_enabled;
|
|
|
|
struct net_bridge_mcast multicast_ctx;
|
|
|
|
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
|
|
struct bridge_mcast_stats __percpu *mcast_stats;
|
|
|
|
u32 hash_max;
|
|
|
|
spinlock_t multicast_lock;
|
|
|
|
struct rhashtable mdb_hash_tbl;
|
|
struct rhashtable sg_port_tbl;
|
|
|
|
struct hlist_head mcast_gc_list;
|
|
struct hlist_head mdb_list;
|
|
|
|
struct work_struct mcast_gc_work;
|
|
#endif
|
|
|
|
struct timer_list hello_timer;
|
|
struct timer_list tcn_timer;
|
|
struct timer_list topology_change_timer;
|
|
struct delayed_work gc_work;
|
|
struct kobject *ifobj;
|
|
u32 auto_cnt;
|
|
|
|
#ifdef CONFIG_NET_SWITCHDEV
|
|
/* Counter used to make sure that hardware domains get unique
|
|
* identifiers in case a bridge spans multiple switchdev instances.
|
|
*/
|
|
int last_hwdom;
|
|
/* Bit mask of hardware domain numbers in use */
|
|
unsigned long busy_hwdoms;
|
|
#endif
|
|
struct hlist_head fdb_list;
|
|
|
|
#if IS_ENABLED(CONFIG_BRIDGE_MRP)
|
|
struct hlist_head mrp_list;
|
|
#endif
|
|
#if IS_ENABLED(CONFIG_BRIDGE_CFM)
|
|
struct hlist_head mep_list;
|
|
#endif
|
|
};
|
|
|
|
struct br_input_skb_cb {
|
|
struct net_device *brdev;
|
|
|
|
u16 frag_max_size;
|
|
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
|
|
u8 igmp;
|
|
u8 mrouters_only:1;
|
|
#endif
|
|
u8 proxyarp_replied:1;
|
|
u8 src_port_isolated:1;
|
|
#ifdef CONFIG_BRIDGE_VLAN_FILTERING
|
|
u8 vlan_filtered:1;
|
|
#endif
|
|
#ifdef CONFIG_NETFILTER_FAMILY_BRIDGE
|
|
u8 br_netfilter_broute:1;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_SWITCHDEV
|
|
/* Set if TX data plane offloading is used towards at least one
|
|
* hardware domain.
|
|
*/
|
|
u8 tx_fwd_offload:1;
|
|
/* The switchdev hardware domain from which this packet was received.
|
|
* If skb->offload_fwd_mark was set, then this packet was already
|
|
* forwarded by hardware to the other ports in the source hardware
|
|
* domain, otherwise it wasn't.
|
|
*/
|
|
int src_hwdom;
|
|
/* Bit mask of hardware domains towards this packet has already been
|
|
* transmitted using the TX data plane offload.
|
|
*/
|
|
unsigned long fwd_hwdoms;
|
|
#endif
|
|
};
|
|
|
|
#define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb)
|
|
|
|
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
|
|
# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only)
|
|
#else
|
|
# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0)
|
|
#endif
|
|
|
|
#define br_printk(level, br, format, args...) \
|
|
printk(level "%s: " format, (br)->dev->name, ##args)
|
|
|
|
#define br_err(__br, format, args...) \
|
|
br_printk(KERN_ERR, __br, format, ##args)
|
|
#define br_warn(__br, format, args...) \
|
|
br_printk(KERN_WARNING, __br, format, ##args)
|
|
#define br_notice(__br, format, args...) \
|
|
br_printk(KERN_NOTICE, __br, format, ##args)
|
|
#define br_info(__br, format, args...) \
|
|
br_printk(KERN_INFO, __br, format, ##args)
|
|
|
|
#define br_debug(br, format, args...) \
|
|
pr_debug("%s: " format, (br)->dev->name, ##args)
|
|
|
|
/* called under bridge lock */
|
|
static inline int br_is_root_bridge(const struct net_bridge *br)
|
|
{
|
|
return !memcmp(&br->bridge_id, &br->designated_root, 8);
|
|
}
|
|
|
|
/* check if a VLAN entry is global */
|
|
static inline bool br_vlan_is_master(const struct net_bridge_vlan *v)
|
|
{
|
|
return v->flags & BRIDGE_VLAN_INFO_MASTER;
|
|
}
|
|
|
|
/* check if a VLAN entry is used by the bridge */
|
|
static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v)
|
|
{
|
|
return v->flags & BRIDGE_VLAN_INFO_BRENTRY;
|
|
}
|
|
|
|
/* check if we should use the vlan entry, returns false if it's only context */
|
|
static inline bool br_vlan_should_use(const struct net_bridge_vlan *v)
|
|
{
|
|
if (br_vlan_is_master(v)) {
|
|
if (br_vlan_is_brentry(v))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static inline bool nbp_state_should_learn(const struct net_bridge_port *p)
|
|
{
|
|
return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING;
|
|
}
|
|
|
|
static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack)
|
|
{
|
|
bool ret = vid > 0 && vid < VLAN_VID_MASK;
|
|
|
|
if (!ret)
|
|
NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur,
|
|
const struct bridge_vlan_info *last,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
/* pvid flag is not allowed in ranges */
|
|
if (cur->flags & BRIDGE_VLAN_INFO_PVID) {
|
|
NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range");
|
|
return false;
|
|
}
|
|
|
|
/* when cur is the range end, check if:
|
|
* - it has range start flag
|
|
* - range ids are invalid (end is equal to or before start)
|
|
*/
|
|
if (last) {
|
|
if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
|
|
NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one");
|
|
return false;
|
|
} else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) {
|
|
NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing");
|
|
return false;
|
|
} else if (cur->vid <= last->vid) {
|
|
NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* check for required range flags */
|
|
if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN |
|
|
BRIDGE_VLAN_INFO_RANGE_END))) {
|
|
NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static inline u8 br_vlan_multicast_router(const struct net_bridge_vlan *v)
|
|
{
|
|
u8 mcast_router = MDB_RTR_TYPE_DISABLED;
|
|
|
|
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
|
|
if (!br_vlan_is_master(v))
|
|
mcast_router = v->port_mcast_ctx.multicast_router;
|
|
else
|
|
mcast_router = v->br_mcast_ctx.multicast_router;
|
|
#endif
|
|
|
|
return mcast_router;
|
|
}
|
|
|
|
static inline int br_afspec_cmd_to_rtm(int cmd)
|
|
{
|
|
switch (cmd) {
|
|
case RTM_SETLINK:
|
|
return RTM_NEWVLAN;
|
|
case RTM_DELLINK:
|
|
return RTM_DELVLAN;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int br_opt_get(const struct net_bridge *br,
|
|
enum net_bridge_opts opt)
|
|
{
|
|
return test_bit(opt, &br->options);
|
|
}
|
|
|
|
int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on,
|
|
struct netlink_ext_ack *extack);
|
|
int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt);
|
|
int br_boolopt_multi_toggle(struct net_bridge *br,
|
|
struct br_boolopt_multi *bm,
|
|
struct netlink_ext_ack *extack);
|
|
void br_boolopt_multi_get(const struct net_bridge *br,
|
|
struct br_boolopt_multi *bm);
|
|
void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on);
|
|
|
|
/* br_device.c */
|
|
void br_dev_setup(struct net_device *dev);
|
|
void br_dev_delete(struct net_device *dev, struct list_head *list);
|
|
netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev);
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
|
|
struct sk_buff *skb)
|
|
{
|
|
netpoll_send_skb(p->np, skb);
|
|
}
|
|
|
|
int br_netpoll_enable(struct net_bridge_port *p);
|
|
void br_netpoll_disable(struct net_bridge_port *p);
|
|
#else
|
|
static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
|
|
struct sk_buff *skb)
|
|
{
|
|
}
|
|
|
|
static inline int br_netpoll_enable(struct net_bridge_port *p)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void br_netpoll_disable(struct net_bridge_port *p)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/* br_fdb.c */
|
|
#define FDB_FLUSH_IGNORED_NDM_FLAGS (NTF_MASTER | NTF_SELF)
|
|
#define FDB_FLUSH_ALLOWED_NDM_STATES (NUD_PERMANENT | NUD_NOARP)
|
|
#define FDB_FLUSH_ALLOWED_NDM_FLAGS (NTF_USE | NTF_EXT_LEARNED | \
|
|
NTF_STICKY | NTF_OFFLOADED)
|
|
|
|
int br_fdb_init(void);
|
|
void br_fdb_fini(void);
|
|
int br_fdb_hash_init(struct net_bridge *br);
|
|
void br_fdb_hash_fini(struct net_bridge *br);
|
|
void br_fdb_flush(struct net_bridge *br,
|
|
const struct net_bridge_fdb_flush_desc *desc);
|
|
void br_fdb_find_delete_local(struct net_bridge *br,
|
|
const struct net_bridge_port *p,
|
|
const unsigned char *addr, u16 vid);
|
|
void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr);
|
|
void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr);
|
|
void br_fdb_cleanup(struct work_struct *work);
|
|
void br_fdb_delete_by_port(struct net_bridge *br,
|
|
const struct net_bridge_port *p, u16 vid, int do_all);
|
|
struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br,
|
|
const unsigned char *addr,
|
|
__u16 vid);
|
|
int br_fdb_test_addr(struct net_device *dev, unsigned char *addr);
|
|
int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count,
|
|
unsigned long off);
|
|
int br_fdb_add_local(struct net_bridge *br, struct net_bridge_port *source,
|
|
const unsigned char *addr, u16 vid);
|
|
void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
|
|
const unsigned char *addr, u16 vid, unsigned long flags);
|
|
|
|
int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
|
|
struct net_device *dev, const unsigned char *addr, u16 vid,
|
|
struct netlink_ext_ack *extack);
|
|
int br_fdb_delete_bulk(struct ndmsg *ndm, struct nlattr *tb[],
|
|
struct net_device *dev, u16 vid,
|
|
struct netlink_ext_ack *extack);
|
|
int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev,
|
|
const unsigned char *addr, u16 vid, u16 nlh_flags,
|
|
struct netlink_ext_ack *extack);
|
|
int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
|
|
struct net_device *dev, struct net_device *fdev, int *idx);
|
|
int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev,
|
|
const unsigned char *addr, u16 vid, u32 portid, u32 seq,
|
|
struct netlink_ext_ack *extack);
|
|
int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p);
|
|
void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p);
|
|
int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p,
|
|
const unsigned char *addr, u16 vid,
|
|
bool locked, bool swdev_notify);
|
|
int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p,
|
|
const unsigned char *addr, u16 vid,
|
|
bool swdev_notify);
|
|
void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p,
|
|
const unsigned char *addr, u16 vid, bool offloaded);
|
|
|
|
/* br_forward.c */
|
|
enum br_pkt_type {
|
|
BR_PKT_UNICAST,
|
|
BR_PKT_MULTICAST,
|
|
BR_PKT_BROADCAST
|
|
};
|
|
int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb);
|
|
void br_forward(const struct net_bridge_port *to, struct sk_buff *skb,
|
|
bool local_rcv, bool local_orig);
|
|
int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb);
|
|
void br_flood(struct net_bridge *br, struct sk_buff *skb,
|
|
enum br_pkt_type pkt_type, bool local_rcv, bool local_orig,
|
|
u16 vid);
|
|
|
|
/* return true if both source port and dest port are isolated */
|
|
static inline bool br_skb_isolated(const struct net_bridge_port *to,
|
|
const struct sk_buff *skb)
|
|
{
|
|
return BR_INPUT_SKB_CB(skb)->src_port_isolated &&
|
|
(to->flags & BR_ISOLATED);
|
|
}
|
|
|
|
/* br_if.c */
|
|
void br_port_carrier_check(struct net_bridge_port *p, bool *notified);
|
|
int br_add_bridge(struct net *net, const char *name);
|
|
int br_del_bridge(struct net *net, const char *name);
|
|
int br_add_if(struct net_bridge *br, struct net_device *dev,
|
|
struct netlink_ext_ack *extack);
|
|
int br_del_if(struct net_bridge *br, struct net_device *dev);
|
|
void br_mtu_auto_adjust(struct net_bridge *br);
|
|
netdev_features_t br_features_recompute(struct net_bridge *br,
|
|
netdev_features_t features);
|
|
void br_port_flags_change(struct net_bridge_port *port, unsigned long mask);
|
|
void br_manage_promisc(struct net_bridge *br);
|
|
int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev);
|
|
|
|
/* br_input.c */
|
|
int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb);
|
|
rx_handler_func_t *br_get_rx_handler(const struct net_device *dev);
|
|
|
|
struct br_frame_type {
|
|
__be16 type;
|
|
int (*frame_handler)(struct net_bridge_port *port,
|
|
struct sk_buff *skb);
|
|
struct hlist_node list;
|
|
};
|
|
|
|
void br_add_frame(struct net_bridge *br, struct br_frame_type *ft);
|
|
void br_del_frame(struct net_bridge *br, struct br_frame_type *ft);
|
|
|
|
static inline bool br_rx_handler_check_rcu(const struct net_device *dev)
|
|
{
|
|
return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev);
|
|
}
|
|
|
|
static inline bool br_rx_handler_check_rtnl(const struct net_device *dev)
|
|
{
|
|
return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev);
|
|
}
|
|
|
|
static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev)
|
|
{
|
|
return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL;
|
|
}
|
|
|
|
static inline struct net_bridge_port *
|
|
br_port_get_check_rtnl(const struct net_device *dev)
|
|
{
|
|
return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL;
|
|
}
|
|
|
|
/* br_ioctl.c */
|
|
int br_dev_siocdevprivate(struct net_device *dev, struct ifreq *rq,
|
|
void __user *data, int cmd);
|
|
int br_ioctl_stub(struct net *net, struct net_bridge *br, unsigned int cmd,
|
|
struct ifreq *ifr, void __user *uarg);
|
|
|
|
/* br_multicast.c */
|
|
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
|
|
int br_multicast_rcv(struct net_bridge_mcast **brmctx,
|
|
struct net_bridge_mcast_port **pmctx,
|
|
struct net_bridge_vlan *vlan,
|
|
struct sk_buff *skb, u16 vid);
|
|
struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx,
|
|
struct sk_buff *skb, u16 vid);
|
|
int br_multicast_add_port(struct net_bridge_port *port);
|
|
void br_multicast_del_port(struct net_bridge_port *port);
|
|
void br_multicast_enable_port(struct net_bridge_port *port);
|
|
void br_multicast_disable_port(struct net_bridge_port *port);
|
|
void br_multicast_init(struct net_bridge *br);
|
|
void br_multicast_join_snoopers(struct net_bridge *br);
|
|
void br_multicast_leave_snoopers(struct net_bridge *br);
|
|
void br_multicast_open(struct net_bridge *br);
|
|
void br_multicast_stop(struct net_bridge *br);
|
|
void br_multicast_dev_del(struct net_bridge *br);
|
|
void br_multicast_flood(struct net_bridge_mdb_entry *mdst, struct sk_buff *skb,
|
|
struct net_bridge_mcast *brmctx,
|
|
bool local_rcv, bool local_orig);
|
|
int br_multicast_set_router(struct net_bridge_mcast *brmctx, unsigned long val);
|
|
int br_multicast_set_port_router(struct net_bridge_mcast_port *pmctx,
|
|
unsigned long val);
|
|
int br_multicast_set_vlan_router(struct net_bridge_vlan *v, u8 mcast_router);
|
|
int br_multicast_toggle(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack);
|
|
int br_multicast_set_querier(struct net_bridge_mcast *brmctx, unsigned long val);
|
|
int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
|
|
int br_multicast_set_igmp_version(struct net_bridge_mcast *brmctx,
|
|
unsigned long val);
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
int br_multicast_set_mld_version(struct net_bridge_mcast *brmctx,
|
|
unsigned long val);
|
|
#endif
|
|
struct net_bridge_mdb_entry *
|
|
br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst);
|
|
struct net_bridge_mdb_entry *
|
|
br_multicast_new_group(struct net_bridge *br, struct br_ip *group);
|
|
struct net_bridge_port_group *
|
|
br_multicast_new_port_group(struct net_bridge_port *port,
|
|
const struct br_ip *group,
|
|
struct net_bridge_port_group __rcu *next,
|
|
unsigned char flags, const unsigned char *src,
|
|
u8 filter_mode, u8 rt_protocol,
|
|
struct netlink_ext_ack *extack);
|
|
void br_multicast_del_port_group(struct net_bridge_port_group *p);
|
|
int br_mdb_hash_init(struct net_bridge *br);
|
|
void br_mdb_hash_fini(struct net_bridge *br);
|
|
void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp,
|
|
struct net_bridge_port_group *pg, int type);
|
|
void br_rtr_notify(struct net_device *dev, struct net_bridge_mcast_port *pmctx,
|
|
int type);
|
|
void br_multicast_del_pg(struct net_bridge_mdb_entry *mp,
|
|
struct net_bridge_port_group *pg,
|
|
struct net_bridge_port_group __rcu **pp);
|
|
void br_multicast_count(struct net_bridge *br,
|
|
const struct net_bridge_port *p,
|
|
const struct sk_buff *skb, u8 type, u8 dir);
|
|
int br_multicast_init_stats(struct net_bridge *br);
|
|
void br_multicast_uninit_stats(struct net_bridge *br);
|
|
void br_multicast_get_stats(const struct net_bridge *br,
|
|
const struct net_bridge_port *p,
|
|
struct br_mcast_stats *dest);
|
|
u32 br_multicast_ngroups_get(const struct net_bridge_mcast_port *pmctx);
|
|
void br_multicast_ngroups_set_max(struct net_bridge_mcast_port *pmctx, u32 max);
|
|
u32 br_multicast_ngroups_get_max(const struct net_bridge_mcast_port *pmctx);
|
|
int br_mdb_add(struct net_device *dev, struct nlattr *tb[], u16 nlmsg_flags,
|
|
struct netlink_ext_ack *extack);
|
|
int br_mdb_del(struct net_device *dev, struct nlattr *tb[],
|
|
struct netlink_ext_ack *extack);
|
|
int br_mdb_dump(struct net_device *dev, struct sk_buff *skb,
|
|
struct netlink_callback *cb);
|
|
void br_multicast_host_join(const struct net_bridge_mcast *brmctx,
|
|
struct net_bridge_mdb_entry *mp, bool notify);
|
|
void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify);
|
|
void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg,
|
|
u8 filter_mode);
|
|
void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp,
|
|
struct net_bridge_port_group *sg);
|
|
struct net_bridge_group_src *
|
|
br_multicast_find_group_src(struct net_bridge_port_group *pg, struct br_ip *ip);
|
|
struct net_bridge_group_src *
|
|
br_multicast_new_group_src(struct net_bridge_port_group *pg,
|
|
struct br_ip *src_ip);
|
|
void __br_multicast_del_group_src(struct net_bridge_group_src *src);
|
|
void br_multicast_del_group_src(struct net_bridge_group_src *src,
|
|
bool fastleave);
|
|
void br_multicast_ctx_init(struct net_bridge *br,
|
|
struct net_bridge_vlan *vlan,
|
|
struct net_bridge_mcast *brmctx);
|
|
void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx);
|
|
void br_multicast_port_ctx_init(struct net_bridge_port *port,
|
|
struct net_bridge_vlan *vlan,
|
|
struct net_bridge_mcast_port *pmctx);
|
|
void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx);
|
|
void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, bool on);
|
|
int br_multicast_toggle_vlan_snooping(struct net_bridge *br, bool on,
|
|
struct netlink_ext_ack *extack);
|
|
bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, bool on);
|
|
|
|
int br_rports_fill_info(struct sk_buff *skb,
|
|
const struct net_bridge_mcast *brmctx);
|
|
int br_multicast_dump_querier_state(struct sk_buff *skb,
|
|
const struct net_bridge_mcast *brmctx,
|
|
int nest_attr);
|
|
size_t br_multicast_querier_state_size(void);
|
|
size_t br_rports_size(const struct net_bridge_mcast *brmctx);
|
|
void br_multicast_set_query_intvl(struct net_bridge_mcast *brmctx,
|
|
unsigned long val);
|
|
void br_multicast_set_startup_query_intvl(struct net_bridge_mcast *brmctx,
|
|
unsigned long val);
|
|
|
|
static inline bool br_group_is_l2(const struct br_ip *group)
|
|
{
|
|
return group->proto == 0;
|
|
}
|
|
|
|
#define mlock_dereference(X, br) \
|
|
rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
|
|
|
|
static inline struct hlist_node *
|
|
br_multicast_get_first_rport_node(struct net_bridge_mcast *brmctx,
|
|
struct sk_buff *skb)
|
|
{
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
if (skb->protocol == htons(ETH_P_IPV6))
|
|
return rcu_dereference(hlist_first_rcu(&brmctx->ip6_mc_router_list));
|
|
#endif
|
|
return rcu_dereference(hlist_first_rcu(&brmctx->ip4_mc_router_list));
|
|
}
|
|
|
|
static inline struct net_bridge_port *
|
|
br_multicast_rport_from_node_skb(struct hlist_node *rp, struct sk_buff *skb)
|
|
{
|
|
struct net_bridge_mcast_port *mctx;
|
|
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
if (skb->protocol == htons(ETH_P_IPV6))
|
|
mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port,
|
|
ip6_rlist);
|
|
else
|
|
#endif
|
|
mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port,
|
|
ip4_rlist);
|
|
|
|
if (mctx)
|
|
return mctx->port;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
static inline bool br_ip4_multicast_is_router(struct net_bridge_mcast *brmctx)
|
|
{
|
|
return timer_pending(&brmctx->ip4_mc_router_timer);
|
|
}
|
|
|
|
static inline bool br_ip6_multicast_is_router(struct net_bridge_mcast *brmctx)
|
|
{
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
return timer_pending(&brmctx->ip6_mc_router_timer);
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_is_router(struct net_bridge_mcast *brmctx, struct sk_buff *skb)
|
|
{
|
|
switch (brmctx->multicast_router) {
|
|
case MDB_RTR_TYPE_PERM:
|
|
return true;
|
|
case MDB_RTR_TYPE_TEMP_QUERY:
|
|
if (skb) {
|
|
if (skb->protocol == htons(ETH_P_IP))
|
|
return br_ip4_multicast_is_router(brmctx);
|
|
else if (skb->protocol == htons(ETH_P_IPV6))
|
|
return br_ip6_multicast_is_router(brmctx);
|
|
} else {
|
|
return br_ip4_multicast_is_router(brmctx) ||
|
|
br_ip6_multicast_is_router(brmctx);
|
|
}
|
|
fallthrough;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static inline bool
|
|
__br_multicast_querier_exists(struct net_bridge_mcast *brmctx,
|
|
struct bridge_mcast_other_query *querier,
|
|
const bool is_ipv6)
|
|
{
|
|
bool own_querier_enabled;
|
|
|
|
if (brmctx->multicast_querier) {
|
|
if (is_ipv6 && !br_opt_get(brmctx->br, BROPT_HAS_IPV6_ADDR))
|
|
own_querier_enabled = false;
|
|
else
|
|
own_querier_enabled = true;
|
|
} else {
|
|
own_querier_enabled = false;
|
|
}
|
|
|
|
return time_is_before_jiffies(querier->delay_time) &&
|
|
(own_querier_enabled || timer_pending(&querier->timer));
|
|
}
|
|
|
|
static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx,
|
|
struct ethhdr *eth,
|
|
const struct net_bridge_mdb_entry *mdb)
|
|
{
|
|
switch (eth->h_proto) {
|
|
case (htons(ETH_P_IP)):
|
|
return __br_multicast_querier_exists(brmctx,
|
|
&brmctx->ip4_other_query, false);
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
case (htons(ETH_P_IPV6)):
|
|
return __br_multicast_querier_exists(brmctx,
|
|
&brmctx->ip6_other_query, true);
|
|
#endif
|
|
default:
|
|
return !!mdb && br_group_is_l2(&mdb->addr);
|
|
}
|
|
}
|
|
|
|
static inline bool br_multicast_is_star_g(const struct br_ip *ip)
|
|
{
|
|
switch (ip->proto) {
|
|
case htons(ETH_P_IP):
|
|
return ipv4_is_zeronet(ip->src.ip4);
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
case htons(ETH_P_IPV6):
|
|
return ipv6_addr_any(&ip->src.ip6);
|
|
#endif
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_should_handle_mode(const struct net_bridge_mcast *brmctx,
|
|
__be16 proto)
|
|
{
|
|
switch (proto) {
|
|
case htons(ETH_P_IP):
|
|
return !!(brmctx->multicast_igmp_version == 3);
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
case htons(ETH_P_IPV6):
|
|
return !!(brmctx->multicast_mld_version == 2);
|
|
#endif
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static inline int br_multicast_igmp_type(const struct sk_buff *skb)
|
|
{
|
|
return BR_INPUT_SKB_CB(skb)->igmp;
|
|
}
|
|
|
|
static inline unsigned long br_multicast_lmqt(const struct net_bridge_mcast *brmctx)
|
|
{
|
|
return brmctx->multicast_last_member_interval *
|
|
brmctx->multicast_last_member_count;
|
|
}
|
|
|
|
static inline unsigned long br_multicast_gmi(const struct net_bridge_mcast *brmctx)
|
|
{
|
|
return brmctx->multicast_membership_interval;
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_ctx_is_vlan(const struct net_bridge_mcast *brmctx)
|
|
{
|
|
return !!brmctx->vlan;
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_port_ctx_is_vlan(const struct net_bridge_mcast_port *pmctx)
|
|
{
|
|
return !!pmctx->vlan;
|
|
}
|
|
|
|
static inline struct net_bridge_mcast *
|
|
br_multicast_port_ctx_get_global(const struct net_bridge_mcast_port *pmctx)
|
|
{
|
|
if (!br_multicast_port_ctx_is_vlan(pmctx))
|
|
return &pmctx->port->br->multicast_ctx;
|
|
else
|
|
return &pmctx->vlan->brvlan->br_mcast_ctx;
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_ctx_vlan_global_disabled(const struct net_bridge_mcast *brmctx)
|
|
{
|
|
return br_multicast_ctx_is_vlan(brmctx) &&
|
|
(!br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) ||
|
|
!(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED));
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_ctx_vlan_disabled(const struct net_bridge_mcast *brmctx)
|
|
{
|
|
return br_multicast_ctx_is_vlan(brmctx) &&
|
|
!(brmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED);
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_port_ctx_vlan_disabled(const struct net_bridge_mcast_port *pmctx)
|
|
{
|
|
return br_multicast_port_ctx_is_vlan(pmctx) &&
|
|
!(pmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED);
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_port_ctx_state_disabled(const struct net_bridge_mcast_port *pmctx)
|
|
{
|
|
return pmctx->port->state == BR_STATE_DISABLED ||
|
|
(br_multicast_port_ctx_is_vlan(pmctx) &&
|
|
(br_multicast_port_ctx_vlan_disabled(pmctx) ||
|
|
pmctx->vlan->state == BR_STATE_DISABLED));
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_port_ctx_state_stopped(const struct net_bridge_mcast_port *pmctx)
|
|
{
|
|
return br_multicast_port_ctx_state_disabled(pmctx) ||
|
|
pmctx->port->state == BR_STATE_BLOCKING ||
|
|
(br_multicast_port_ctx_is_vlan(pmctx) &&
|
|
pmctx->vlan->state == BR_STATE_BLOCKING);
|
|
}
|
|
|
|
static inline bool
|
|
br_rports_have_mc_router(const struct net_bridge_mcast *brmctx)
|
|
{
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
return !hlist_empty(&brmctx->ip4_mc_router_list) ||
|
|
!hlist_empty(&brmctx->ip6_mc_router_list);
|
|
#else
|
|
return !hlist_empty(&brmctx->ip4_mc_router_list);
|
|
#endif
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_ctx_options_equal(const struct net_bridge_mcast *brmctx1,
|
|
const struct net_bridge_mcast *brmctx2)
|
|
{
|
|
return brmctx1->multicast_igmp_version ==
|
|
brmctx2->multicast_igmp_version &&
|
|
brmctx1->multicast_last_member_count ==
|
|
brmctx2->multicast_last_member_count &&
|
|
brmctx1->multicast_startup_query_count ==
|
|
brmctx2->multicast_startup_query_count &&
|
|
brmctx1->multicast_last_member_interval ==
|
|
brmctx2->multicast_last_member_interval &&
|
|
brmctx1->multicast_membership_interval ==
|
|
brmctx2->multicast_membership_interval &&
|
|
brmctx1->multicast_querier_interval ==
|
|
brmctx2->multicast_querier_interval &&
|
|
brmctx1->multicast_query_interval ==
|
|
brmctx2->multicast_query_interval &&
|
|
brmctx1->multicast_query_response_interval ==
|
|
brmctx2->multicast_query_response_interval &&
|
|
brmctx1->multicast_startup_query_interval ==
|
|
brmctx2->multicast_startup_query_interval &&
|
|
brmctx1->multicast_querier == brmctx2->multicast_querier &&
|
|
brmctx1->multicast_router == brmctx2->multicast_router &&
|
|
!br_rports_have_mc_router(brmctx1) &&
|
|
!br_rports_have_mc_router(brmctx2) &&
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
brmctx1->multicast_mld_version ==
|
|
brmctx2->multicast_mld_version &&
|
|
#endif
|
|
true;
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_ctx_matches_vlan_snooping(const struct net_bridge_mcast *brmctx)
|
|
{
|
|
bool vlan_snooping_enabled;
|
|
|
|
vlan_snooping_enabled = !!br_opt_get(brmctx->br,
|
|
BROPT_MCAST_VLAN_SNOOPING_ENABLED);
|
|
|
|
return !!(vlan_snooping_enabled == br_multicast_ctx_is_vlan(brmctx));
|
|
}
|
|
#else
|
|
static inline int br_multicast_rcv(struct net_bridge_mcast **brmctx,
|
|
struct net_bridge_mcast_port **pmctx,
|
|
struct net_bridge_vlan *vlan,
|
|
struct sk_buff *skb,
|
|
u16 vid)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx,
|
|
struct sk_buff *skb, u16 vid)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int br_multicast_add_port(struct net_bridge_port *port)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void br_multicast_del_port(struct net_bridge_port *port)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_enable_port(struct net_bridge_port *port)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_disable_port(struct net_bridge_port *port)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_init(struct net_bridge *br)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_join_snoopers(struct net_bridge *br)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_leave_snoopers(struct net_bridge *br)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_open(struct net_bridge *br)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_stop(struct net_bridge *br)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_dev_del(struct net_bridge *br)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst,
|
|
struct sk_buff *skb,
|
|
struct net_bridge_mcast *brmctx,
|
|
bool local_rcv, bool local_orig)
|
|
{
|
|
}
|
|
|
|
static inline bool br_multicast_is_router(struct net_bridge_mcast *brmctx,
|
|
struct sk_buff *skb)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx,
|
|
struct ethhdr *eth,
|
|
const struct net_bridge_mdb_entry *mdb)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline int br_mdb_add(struct net_device *dev, struct nlattr *tb[],
|
|
u16 nlmsg_flags, struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int br_mdb_del(struct net_device *dev, struct nlattr *tb[],
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int br_mdb_dump(struct net_device *dev, struct sk_buff *skb,
|
|
struct netlink_callback *cb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int br_mdb_hash_init(struct net_bridge *br)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void br_mdb_hash_fini(struct net_bridge *br)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_count(struct net_bridge *br,
|
|
const struct net_bridge_port *p,
|
|
const struct sk_buff *skb,
|
|
u8 type, u8 dir)
|
|
{
|
|
}
|
|
|
|
static inline int br_multicast_init_stats(struct net_bridge *br)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void br_multicast_uninit_stats(struct net_bridge *br)
|
|
{
|
|
}
|
|
|
|
static inline int br_multicast_igmp_type(const struct sk_buff *skb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void br_multicast_ctx_init(struct net_bridge *br,
|
|
struct net_bridge_vlan *vlan,
|
|
struct net_bridge_mcast *brmctx)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_port_ctx_init(struct net_bridge_port *port,
|
|
struct net_bridge_vlan *vlan,
|
|
struct net_bridge_mcast_port *pmctx)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx)
|
|
{
|
|
}
|
|
|
|
static inline void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan,
|
|
bool on)
|
|
{
|
|
}
|
|
|
|
static inline int br_multicast_toggle_vlan_snooping(struct net_bridge *br,
|
|
bool on,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan,
|
|
bool on)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool
|
|
br_multicast_ctx_options_equal(const struct net_bridge_mcast *brmctx1,
|
|
const struct net_bridge_mcast *brmctx2)
|
|
{
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
/* br_vlan.c */
|
|
#ifdef CONFIG_BRIDGE_VLAN_FILTERING
|
|
bool br_allowed_ingress(const struct net_bridge *br,
|
|
struct net_bridge_vlan_group *vg, struct sk_buff *skb,
|
|
u16 *vid, u8 *state,
|
|
struct net_bridge_vlan **vlan);
|
|
bool br_allowed_egress(struct net_bridge_vlan_group *vg,
|
|
const struct sk_buff *skb);
|
|
bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid);
|
|
struct sk_buff *br_handle_vlan(struct net_bridge *br,
|
|
const struct net_bridge_port *port,
|
|
struct net_bridge_vlan_group *vg,
|
|
struct sk_buff *skb);
|
|
int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags,
|
|
bool *changed, struct netlink_ext_ack *extack);
|
|
int br_vlan_delete(struct net_bridge *br, u16 vid);
|
|
void br_vlan_flush(struct net_bridge *br);
|
|
struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid);
|
|
void br_recalculate_fwd_mask(struct net_bridge *br);
|
|
int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack);
|
|
int __br_vlan_set_proto(struct net_bridge *br, __be16 proto,
|
|
struct netlink_ext_ack *extack);
|
|
int br_vlan_set_proto(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack);
|
|
int br_vlan_set_stats(struct net_bridge *br, unsigned long val);
|
|
int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val);
|
|
int br_vlan_init(struct net_bridge *br);
|
|
int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack);
|
|
int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid,
|
|
struct netlink_ext_ack *extack);
|
|
int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags,
|
|
bool *changed, struct netlink_ext_ack *extack);
|
|
int nbp_vlan_delete(struct net_bridge_port *port, u16 vid);
|
|
void nbp_vlan_flush(struct net_bridge_port *port);
|
|
int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack);
|
|
int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask);
|
|
void br_vlan_get_stats(const struct net_bridge_vlan *v,
|
|
struct pcpu_sw_netstats *stats);
|
|
void br_vlan_port_event(struct net_bridge_port *p, unsigned long event);
|
|
int br_vlan_bridge_event(struct net_device *dev, unsigned long event,
|
|
void *ptr);
|
|
void br_vlan_rtnl_init(void);
|
|
void br_vlan_rtnl_uninit(void);
|
|
void br_vlan_notify(const struct net_bridge *br,
|
|
const struct net_bridge_port *p,
|
|
u16 vid, u16 vid_range,
|
|
int cmd);
|
|
bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr,
|
|
const struct net_bridge_vlan *range_end);
|
|
|
|
void br_vlan_fill_forward_path_pvid(struct net_bridge *br,
|
|
struct net_device_path_ctx *ctx,
|
|
struct net_device_path *path);
|
|
int br_vlan_fill_forward_path_mode(struct net_bridge *br,
|
|
struct net_bridge_port *dst,
|
|
struct net_device_path *path);
|
|
|
|
static inline struct net_bridge_vlan_group *br_vlan_group(
|
|
const struct net_bridge *br)
|
|
{
|
|
return rtnl_dereference(br->vlgrp);
|
|
}
|
|
|
|
static inline struct net_bridge_vlan_group *nbp_vlan_group(
|
|
const struct net_bridge_port *p)
|
|
{
|
|
return rtnl_dereference(p->vlgrp);
|
|
}
|
|
|
|
static inline struct net_bridge_vlan_group *br_vlan_group_rcu(
|
|
const struct net_bridge *br)
|
|
{
|
|
return rcu_dereference(br->vlgrp);
|
|
}
|
|
|
|
static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu(
|
|
const struct net_bridge_port *p)
|
|
{
|
|
return rcu_dereference(p->vlgrp);
|
|
}
|
|
|
|
/* Since bridge now depends on 8021Q module, but the time bridge sees the
|
|
* skb, the vlan tag will always be present if the frame was tagged.
|
|
*/
|
|
static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid)
|
|
{
|
|
int err = 0;
|
|
|
|
if (skb_vlan_tag_present(skb)) {
|
|
*vid = skb_vlan_tag_get_id(skb);
|
|
} else {
|
|
*vid = 0;
|
|
err = -EINVAL;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg)
|
|
{
|
|
if (!vg)
|
|
return 0;
|
|
|
|
smp_rmb();
|
|
return vg->pvid;
|
|
}
|
|
|
|
static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid)
|
|
{
|
|
return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags;
|
|
}
|
|
#else
|
|
static inline bool br_allowed_ingress(const struct net_bridge *br,
|
|
struct net_bridge_vlan_group *vg,
|
|
struct sk_buff *skb,
|
|
u16 *vid, u8 *state,
|
|
struct net_bridge_vlan **vlan)
|
|
|
|
{
|
|
*vlan = NULL;
|
|
return true;
|
|
}
|
|
|
|
static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg,
|
|
const struct sk_buff *skb)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static inline bool br_should_learn(struct net_bridge_port *p,
|
|
struct sk_buff *skb, u16 *vid)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static inline struct sk_buff *br_handle_vlan(struct net_bridge *br,
|
|
const struct net_bridge_port *port,
|
|
struct net_bridge_vlan_group *vg,
|
|
struct sk_buff *skb)
|
|
{
|
|
return skb;
|
|
}
|
|
|
|
static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags,
|
|
bool *changed, struct netlink_ext_ack *extack)
|
|
{
|
|
*changed = false;
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int br_vlan_delete(struct net_bridge *br, u16 vid)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline void br_vlan_flush(struct net_bridge *br)
|
|
{
|
|
}
|
|
|
|
static inline void br_recalculate_fwd_mask(struct net_bridge *br)
|
|
{
|
|
}
|
|
|
|
static inline int br_vlan_init(struct net_bridge *br)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags,
|
|
bool *changed, struct netlink_ext_ack *extack)
|
|
{
|
|
*changed = false;
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline void nbp_vlan_flush(struct net_bridge_port *port)
|
|
{
|
|
}
|
|
|
|
static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg,
|
|
u16 vid)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int nbp_vlan_init(struct net_bridge_port *port,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int br_vlan_filter_toggle(struct net_bridge *br,
|
|
unsigned long val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p,
|
|
u32 filter_mask)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void br_vlan_fill_forward_path_pvid(struct net_bridge *br,
|
|
struct net_device_path_ctx *ctx,
|
|
struct net_device_path *path)
|
|
{
|
|
}
|
|
|
|
static inline int br_vlan_fill_forward_path_mode(struct net_bridge *br,
|
|
struct net_bridge_port *dst,
|
|
struct net_device_path *path)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline struct net_bridge_vlan_group *br_vlan_group(
|
|
const struct net_bridge *br)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct net_bridge_vlan_group *nbp_vlan_group(
|
|
const struct net_bridge_port *p)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct net_bridge_vlan_group *br_vlan_group_rcu(
|
|
const struct net_bridge *br)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu(
|
|
const struct net_bridge_port *p)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void br_vlan_get_stats(const struct net_bridge_vlan *v,
|
|
struct pcpu_sw_netstats *stats)
|
|
{
|
|
}
|
|
|
|
static inline void br_vlan_port_event(struct net_bridge_port *p,
|
|
unsigned long event)
|
|
{
|
|
}
|
|
|
|
static inline int br_vlan_bridge_event(struct net_device *dev,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void br_vlan_rtnl_init(void)
|
|
{
|
|
}
|
|
|
|
static inline void br_vlan_rtnl_uninit(void)
|
|
{
|
|
}
|
|
|
|
static inline void br_vlan_notify(const struct net_bridge *br,
|
|
const struct net_bridge_port *p,
|
|
u16 vid, u16 vid_range,
|
|
int cmd)
|
|
{
|
|
}
|
|
|
|
static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr,
|
|
const struct net_bridge_vlan *range_end)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
/* br_vlan_options.c */
|
|
#ifdef CONFIG_BRIDGE_VLAN_FILTERING
|
|
bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr,
|
|
const struct net_bridge_vlan *range_end);
|
|
bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v,
|
|
const struct net_bridge_port *p);
|
|
size_t br_vlan_opts_nl_size(void);
|
|
int br_vlan_process_options(const struct net_bridge *br,
|
|
const struct net_bridge_port *p,
|
|
struct net_bridge_vlan *range_start,
|
|
struct net_bridge_vlan *range_end,
|
|
struct nlattr **tb,
|
|
struct netlink_ext_ack *extack);
|
|
int br_vlan_rtm_process_global_options(struct net_device *dev,
|
|
const struct nlattr *attr,
|
|
int cmd,
|
|
struct netlink_ext_ack *extack);
|
|
bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr,
|
|
const struct net_bridge_vlan *r_end);
|
|
bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range,
|
|
const struct net_bridge_vlan *v_opts);
|
|
|
|
/* vlan state manipulation helpers using *_ONCE to annotate lock-free access */
|
|
static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v)
|
|
{
|
|
return READ_ONCE(v->state);
|
|
}
|
|
|
|
static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state)
|
|
{
|
|
WRITE_ONCE(v->state, state);
|
|
}
|
|
|
|
static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg)
|
|
{
|
|
return READ_ONCE(vg->pvid_state);
|
|
}
|
|
|
|
static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg,
|
|
u8 state)
|
|
{
|
|
WRITE_ONCE(vg->pvid_state, state);
|
|
}
|
|
|
|
/* learn_allow is true at ingress and false at egress */
|
|
static inline bool br_vlan_state_allowed(u8 state, bool learn_allow)
|
|
{
|
|
switch (state) {
|
|
case BR_STATE_LEARNING:
|
|
return learn_allow;
|
|
case BR_STATE_FORWARDING:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* br_mst.c */
|
|
#ifdef CONFIG_BRIDGE_VLAN_FILTERING
|
|
DECLARE_STATIC_KEY_FALSE(br_mst_used);
|
|
static inline bool br_mst_is_enabled(struct net_bridge *br)
|
|
{
|
|
return static_branch_unlikely(&br_mst_used) &&
|
|
br_opt_get(br, BROPT_MST_ENABLED);
|
|
}
|
|
|
|
int br_mst_set_state(struct net_bridge_port *p, u16 msti, u8 state,
|
|
struct netlink_ext_ack *extack);
|
|
int br_mst_vlan_set_msti(struct net_bridge_vlan *v, u16 msti);
|
|
void br_mst_vlan_init_state(struct net_bridge_vlan *v);
|
|
int br_mst_set_enabled(struct net_bridge *br, bool on,
|
|
struct netlink_ext_ack *extack);
|
|
size_t br_mst_info_size(const struct net_bridge_vlan_group *vg);
|
|
int br_mst_fill_info(struct sk_buff *skb,
|
|
const struct net_bridge_vlan_group *vg);
|
|
int br_mst_process(struct net_bridge_port *p, const struct nlattr *mst_attr,
|
|
struct netlink_ext_ack *extack);
|
|
#else
|
|
static inline bool br_mst_is_enabled(struct net_bridge *br)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline int br_mst_set_state(struct net_bridge_port *p, u16 msti,
|
|
u8 state, struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int br_mst_set_enabled(struct net_bridge *br, bool on,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline size_t br_mst_info_size(const struct net_bridge_vlan_group *vg)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int br_mst_fill_info(struct sk_buff *skb,
|
|
const struct net_bridge_vlan_group *vg)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int br_mst_process(struct net_bridge_port *p,
|
|
const struct nlattr *mst_attr,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
#endif
|
|
|
|
struct nf_br_ops {
|
|
int (*br_dev_xmit_hook)(struct sk_buff *skb);
|
|
};
|
|
extern const struct nf_br_ops __rcu *nf_br_ops;
|
|
|
|
/* br_netfilter.c */
|
|
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
|
|
int br_nf_core_init(void);
|
|
void br_nf_core_fini(void);
|
|
void br_netfilter_rtable_init(struct net_bridge *);
|
|
#else
|
|
static inline int br_nf_core_init(void) { return 0; }
|
|
static inline void br_nf_core_fini(void) {}
|
|
#define br_netfilter_rtable_init(x)
|
|
#endif
|
|
|
|
/* br_stp.c */
|
|
void br_set_state(struct net_bridge_port *p, unsigned int state);
|
|
struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no);
|
|
void br_init_port(struct net_bridge_port *p);
|
|
void br_become_designated_port(struct net_bridge_port *p);
|
|
|
|
void __br_set_forward_delay(struct net_bridge *br, unsigned long t);
|
|
int br_set_forward_delay(struct net_bridge *br, unsigned long x);
|
|
int br_set_hello_time(struct net_bridge *br, unsigned long x);
|
|
int br_set_max_age(struct net_bridge *br, unsigned long x);
|
|
int __set_ageing_time(struct net_device *dev, unsigned long t);
|
|
int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time);
|
|
|
|
|
|
/* br_stp_if.c */
|
|
void br_stp_enable_bridge(struct net_bridge *br);
|
|
void br_stp_disable_bridge(struct net_bridge *br);
|
|
int br_stp_set_enabled(struct net_bridge *br, unsigned long val,
|
|
struct netlink_ext_ack *extack);
|
|
void br_stp_enable_port(struct net_bridge_port *p);
|
|
void br_stp_disable_port(struct net_bridge_port *p);
|
|
bool br_stp_recalculate_bridge_id(struct net_bridge *br);
|
|
void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a);
|
|
void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio);
|
|
int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio);
|
|
int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost);
|
|
ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id);
|
|
|
|
/* br_stp_bpdu.c */
|
|
struct stp_proto;
|
|
void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
|
|
struct net_device *dev);
|
|
|
|
/* br_stp_timer.c */
|
|
void br_stp_timer_init(struct net_bridge *br);
|
|
void br_stp_port_timer_init(struct net_bridge_port *p);
|
|
unsigned long br_timer_value(const struct timer_list *timer);
|
|
|
|
/* br.c */
|
|
#if IS_ENABLED(CONFIG_ATM_LANE)
|
|
extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr);
|
|
#endif
|
|
|
|
/* br_mrp.c */
|
|
#if IS_ENABLED(CONFIG_BRIDGE_MRP)
|
|
int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p,
|
|
struct nlattr *attr, int cmd, struct netlink_ext_ack *extack);
|
|
bool br_mrp_enabled(struct net_bridge *br);
|
|
void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p);
|
|
int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br);
|
|
#else
|
|
static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p,
|
|
struct nlattr *attr, int cmd,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline bool br_mrp_enabled(struct net_bridge *br)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline void br_mrp_port_del(struct net_bridge *br,
|
|
struct net_bridge_port *p)
|
|
{
|
|
}
|
|
|
|
static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
/* br_cfm.c */
|
|
#if IS_ENABLED(CONFIG_BRIDGE_CFM)
|
|
int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p,
|
|
struct nlattr *attr, int cmd, struct netlink_ext_ack *extack);
|
|
bool br_cfm_created(struct net_bridge *br);
|
|
void br_cfm_port_del(struct net_bridge *br, struct net_bridge_port *p);
|
|
int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br);
|
|
int br_cfm_status_fill_info(struct sk_buff *skb,
|
|
struct net_bridge *br,
|
|
bool getlink);
|
|
int br_cfm_mep_count(struct net_bridge *br, u32 *count);
|
|
int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count);
|
|
#else
|
|
static inline int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p,
|
|
struct nlattr *attr, int cmd,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline bool br_cfm_created(struct net_bridge *br)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline void br_cfm_port_del(struct net_bridge *br,
|
|
struct net_bridge_port *p)
|
|
{
|
|
}
|
|
|
|
static inline int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int br_cfm_status_fill_info(struct sk_buff *skb,
|
|
struct net_bridge *br,
|
|
bool getlink)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int br_cfm_mep_count(struct net_bridge *br, u32 *count)
|
|
{
|
|
*count = 0;
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count)
|
|
{
|
|
*count = 0;
|
|
return -EOPNOTSUPP;
|
|
}
|
|
#endif
|
|
|
|
/* br_netlink.c */
|
|
extern struct rtnl_link_ops br_link_ops;
|
|
int br_netlink_init(void);
|
|
void br_netlink_fini(void);
|
|
void br_ifinfo_notify(int event, const struct net_bridge *br,
|
|
const struct net_bridge_port *port);
|
|
void br_info_notify(int event, const struct net_bridge *br,
|
|
const struct net_bridge_port *port, u32 filter);
|
|
int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags,
|
|
struct netlink_ext_ack *extack);
|
|
int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags);
|
|
int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev,
|
|
u32 filter_mask, int nlflags);
|
|
int br_process_vlan_info(struct net_bridge *br,
|
|
struct net_bridge_port *p, int cmd,
|
|
struct bridge_vlan_info *vinfo_curr,
|
|
struct bridge_vlan_info **vinfo_last,
|
|
bool *changed,
|
|
struct netlink_ext_ack *extack);
|
|
|
|
#ifdef CONFIG_SYSFS
|
|
/* br_sysfs_if.c */
|
|
extern const struct sysfs_ops brport_sysfs_ops;
|
|
int br_sysfs_addif(struct net_bridge_port *p);
|
|
int br_sysfs_renameif(struct net_bridge_port *p);
|
|
|
|
/* br_sysfs_br.c */
|
|
int br_sysfs_addbr(struct net_device *dev);
|
|
void br_sysfs_delbr(struct net_device *dev);
|
|
|
|
#else
|
|
|
|
static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; }
|
|
static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; }
|
|
static inline int br_sysfs_addbr(struct net_device *dev) { return 0; }
|
|
static inline void br_sysfs_delbr(struct net_device *dev) { return; }
|
|
#endif /* CONFIG_SYSFS */
|
|
|
|
/* br_switchdev.c */
|
|
#ifdef CONFIG_NET_SWITCHDEV
|
|
int br_switchdev_port_offload(struct net_bridge_port *p,
|
|
struct net_device *dev, const void *ctx,
|
|
struct notifier_block *atomic_nb,
|
|
struct notifier_block *blocking_nb,
|
|
bool tx_fwd_offload,
|
|
struct netlink_ext_ack *extack);
|
|
|
|
void br_switchdev_port_unoffload(struct net_bridge_port *p, const void *ctx,
|
|
struct notifier_block *atomic_nb,
|
|
struct notifier_block *blocking_nb);
|
|
|
|
bool br_switchdev_frame_uses_tx_fwd_offload(struct sk_buff *skb);
|
|
|
|
void br_switchdev_frame_set_offload_fwd_mark(struct sk_buff *skb);
|
|
|
|
void nbp_switchdev_frame_mark_tx_fwd_offload(const struct net_bridge_port *p,
|
|
struct sk_buff *skb);
|
|
void nbp_switchdev_frame_mark_tx_fwd_to_hwdom(const struct net_bridge_port *p,
|
|
struct sk_buff *skb);
|
|
void nbp_switchdev_frame_mark(const struct net_bridge_port *p,
|
|
struct sk_buff *skb);
|
|
bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p,
|
|
const struct sk_buff *skb);
|
|
int br_switchdev_set_port_flag(struct net_bridge_port *p,
|
|
unsigned long flags,
|
|
unsigned long mask,
|
|
struct netlink_ext_ack *extack);
|
|
void br_switchdev_fdb_notify(struct net_bridge *br,
|
|
const struct net_bridge_fdb_entry *fdb, int type);
|
|
void br_switchdev_mdb_notify(struct net_device *dev,
|
|
struct net_bridge_mdb_entry *mp,
|
|
struct net_bridge_port_group *pg,
|
|
int type);
|
|
int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags,
|
|
bool changed, struct netlink_ext_ack *extack);
|
|
int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid);
|
|
void br_switchdev_init(struct net_bridge *br);
|
|
|
|
static inline void br_switchdev_frame_unmark(struct sk_buff *skb)
|
|
{
|
|
skb->offload_fwd_mark = 0;
|
|
}
|
|
#else
|
|
static inline int
|
|
br_switchdev_port_offload(struct net_bridge_port *p,
|
|
struct net_device *dev, const void *ctx,
|
|
struct notifier_block *atomic_nb,
|
|
struct notifier_block *blocking_nb,
|
|
bool tx_fwd_offload,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline void
|
|
br_switchdev_port_unoffload(struct net_bridge_port *p, const void *ctx,
|
|
struct notifier_block *atomic_nb,
|
|
struct notifier_block *blocking_nb)
|
|
{
|
|
}
|
|
|
|
static inline bool br_switchdev_frame_uses_tx_fwd_offload(struct sk_buff *skb)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline void br_switchdev_frame_set_offload_fwd_mark(struct sk_buff *skb)
|
|
{
|
|
}
|
|
|
|
static inline void
|
|
nbp_switchdev_frame_mark_tx_fwd_offload(const struct net_bridge_port *p,
|
|
struct sk_buff *skb)
|
|
{
|
|
}
|
|
|
|
static inline void
|
|
nbp_switchdev_frame_mark_tx_fwd_to_hwdom(const struct net_bridge_port *p,
|
|
struct sk_buff *skb)
|
|
{
|
|
}
|
|
|
|
static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p,
|
|
struct sk_buff *skb)
|
|
{
|
|
}
|
|
|
|
static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p,
|
|
const struct sk_buff *skb)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static inline int br_switchdev_set_port_flag(struct net_bridge_port *p,
|
|
unsigned long flags,
|
|
unsigned long mask,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid,
|
|
u16 flags, bool changed,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline void
|
|
br_switchdev_fdb_notify(struct net_bridge *br,
|
|
const struct net_bridge_fdb_entry *fdb, int type)
|
|
{
|
|
}
|
|
|
|
static inline void br_switchdev_mdb_notify(struct net_device *dev,
|
|
struct net_bridge_mdb_entry *mp,
|
|
struct net_bridge_port_group *pg,
|
|
int type)
|
|
{
|
|
}
|
|
|
|
static inline void br_switchdev_frame_unmark(struct sk_buff *skb)
|
|
{
|
|
}
|
|
|
|
static inline void br_switchdev_init(struct net_bridge *br)
|
|
{
|
|
}
|
|
|
|
#endif /* CONFIG_NET_SWITCHDEV */
|
|
|
|
/* br_arp_nd_proxy.c */
|
|
void br_recalculate_neigh_suppress_enabled(struct net_bridge *br);
|
|
void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br,
|
|
u16 vid, struct net_bridge_port *p);
|
|
void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br,
|
|
u16 vid, struct net_bridge_port *p, struct nd_msg *msg);
|
|
struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m);
|
|
bool br_is_neigh_suppress_enabled(const struct net_bridge_port *p, u16 vid);
|
|
#endif
|