--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+ * Linux ethernet bridge
+ *
+ * Authors:
+ * Lennert Buytenhek <buytenh@gnu.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_IF_BRIDGE_H
+#define _LINUX_IF_BRIDGE_H
+
+#include <linux/types.h>
+#include <linux/if_ether.h>
+#include <linux/in6.h>
+
+#define SYSFS_BRIDGE_ATTR "bridge"
+#define SYSFS_BRIDGE_FDB "brforward"
+#define SYSFS_BRIDGE_PORT_SUBDIR "brif"
+#define SYSFS_BRIDGE_PORT_ATTR "brport"
+#define SYSFS_BRIDGE_PORT_LINK "bridge"
+
+#define BRCTL_VERSION 1
+
+#define BRCTL_GET_VERSION 0
+#define BRCTL_GET_BRIDGES 1
+#define BRCTL_ADD_BRIDGE 2
+#define BRCTL_DEL_BRIDGE 3
+#define BRCTL_ADD_IF 4
+#define BRCTL_DEL_IF 5
+#define BRCTL_GET_BRIDGE_INFO 6
+#define BRCTL_GET_PORT_LIST 7
+#define BRCTL_SET_BRIDGE_FORWARD_DELAY 8
+#define BRCTL_SET_BRIDGE_HELLO_TIME 9
+#define BRCTL_SET_BRIDGE_MAX_AGE 10
+#define BRCTL_SET_AGEING_TIME 11
+#define BRCTL_SET_GC_INTERVAL 12
+#define BRCTL_GET_PORT_INFO 13
+#define BRCTL_SET_BRIDGE_STP_STATE 14
+#define BRCTL_SET_BRIDGE_PRIORITY 15
+#define BRCTL_SET_PORT_PRIORITY 16
+#define BRCTL_SET_PATH_COST 17
+#define BRCTL_GET_FDB_ENTRIES 18
+
+#define BR_STATE_DISABLED 0
+#define BR_STATE_LISTENING 1
+#define BR_STATE_LEARNING 2
+#define BR_STATE_FORWARDING 3
+#define BR_STATE_BLOCKING 4
+
+struct __bridge_info {
+ __u64 designated_root;
+ __u64 bridge_id;
+ __u32 root_path_cost;
+ __u32 max_age;
+ __u32 hello_time;
+ __u32 forward_delay;
+ __u32 bridge_max_age;
+ __u32 bridge_hello_time;
+ __u32 bridge_forward_delay;
+ __u8 topology_change;
+ __u8 topology_change_detected;
+ __u8 root_port;
+ __u8 stp_enabled;
+ __u32 ageing_time;
+ __u32 gc_interval;
+ __u32 hello_timer_value;
+ __u32 tcn_timer_value;
+ __u32 topology_change_timer_value;
+ __u32 gc_timer_value;
+};
+
+struct __port_info {
+ __u64 designated_root;
+ __u64 designated_bridge;
+ __u16 port_id;
+ __u16 designated_port;
+ __u32 path_cost;
+ __u32 designated_cost;
+ __u8 state;
+ __u8 top_change_ack;
+ __u8 config_pending;
+ __u8 unused0;
+ __u32 message_age_timer_value;
+ __u32 forward_delay_timer_value;
+ __u32 hold_timer_value;
+};
+
+struct __fdb_entry {
+ __u8 mac_addr[ETH_ALEN];
+ __u8 port_no;
+ __u8 is_local;
+ __u32 ageing_timer_value;
+ __u8 port_hi;
+ __u8 pad0;
+ __u16 unused;
+};
+
+/* Bridge Flags */
+#define BRIDGE_FLAGS_MASTER 1 /* Bridge command to/from master */
+#define BRIDGE_FLAGS_SELF 2 /* Bridge command to/from lowerdev */
+
+#define BRIDGE_MODE_VEB 0 /* Default loopback mode */
+#define BRIDGE_MODE_VEPA 1 /* 802.1Qbg defined VEPA mode */
+#define BRIDGE_MODE_UNDEF 0xFFFF /* mode undefined */
+
+/* Bridge management nested attributes
+ * [IFLA_AF_SPEC] = {
+ * [IFLA_BRIDGE_FLAGS]
+ * [IFLA_BRIDGE_MODE]
+ * [IFLA_BRIDGE_VLAN_INFO]
+ * }
+ */
+enum {
+ IFLA_BRIDGE_FLAGS,
+ IFLA_BRIDGE_MODE,
+ IFLA_BRIDGE_VLAN_INFO,
+ IFLA_BRIDGE_VLAN_TUNNEL_INFO,
+ __IFLA_BRIDGE_MAX,
+};
+#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
+
+#define BRIDGE_VLAN_INFO_MASTER (1<<0) /* Operate on Bridge device as well */
+#define BRIDGE_VLAN_INFO_PVID (1<<1) /* VLAN is PVID, ingress untagged */
+#define BRIDGE_VLAN_INFO_UNTAGGED (1<<2) /* VLAN egresses untagged */
+#define BRIDGE_VLAN_INFO_RANGE_BEGIN (1<<3) /* VLAN is start of vlan range */
+#define BRIDGE_VLAN_INFO_RANGE_END (1<<4) /* VLAN is end of vlan range */
+#define BRIDGE_VLAN_INFO_BRENTRY (1<<5) /* Global bridge VLAN entry */
+
+struct bridge_vlan_info {
+ __u16 flags;
+ __u16 vid;
+};
+
+enum {
+ IFLA_BRIDGE_VLAN_TUNNEL_UNSPEC,
+ IFLA_BRIDGE_VLAN_TUNNEL_ID,
+ IFLA_BRIDGE_VLAN_TUNNEL_VID,
+ IFLA_BRIDGE_VLAN_TUNNEL_FLAGS,
+ __IFLA_BRIDGE_VLAN_TUNNEL_MAX,
+};
+
+#define IFLA_BRIDGE_VLAN_TUNNEL_MAX (__IFLA_BRIDGE_VLAN_TUNNEL_MAX - 1)
+
+struct bridge_vlan_xstats {
+ __u64 rx_bytes;
+ __u64 rx_packets;
+ __u64 tx_bytes;
+ __u64 tx_packets;
+ __u16 vid;
+ __u16 flags;
+ __u32 pad2;
+};
+
+/* Bridge multicast database attributes
+ * [MDBA_MDB] = {
+ * [MDBA_MDB_ENTRY] = {
+ * [MDBA_MDB_ENTRY_INFO] {
+ * struct br_mdb_entry
+ * [MDBA_MDB_EATTR attributes]
+ * }
+ * }
+ * }
+ * [MDBA_ROUTER] = {
+ * [MDBA_ROUTER_PORT] = {
+ * u32 ifindex
+ * [MDBA_ROUTER_PATTR attributes]
+ * }
+ * }
+ */
+enum {
+ MDBA_UNSPEC,
+ MDBA_MDB,
+ MDBA_ROUTER,
+ __MDBA_MAX,
+};
+#define MDBA_MAX (__MDBA_MAX - 1)
+
+enum {
+ MDBA_MDB_UNSPEC,
+ MDBA_MDB_ENTRY,
+ __MDBA_MDB_MAX,
+};
+#define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1)
+
+enum {
+ MDBA_MDB_ENTRY_UNSPEC,
+ MDBA_MDB_ENTRY_INFO,
+ __MDBA_MDB_ENTRY_MAX,
+};
+#define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1)
+
+/* per mdb entry additional attributes */
+enum {
+ MDBA_MDB_EATTR_UNSPEC,
+ MDBA_MDB_EATTR_TIMER,
+ __MDBA_MDB_EATTR_MAX
+};
+#define MDBA_MDB_EATTR_MAX (__MDBA_MDB_EATTR_MAX - 1)
+
+/* multicast router types */
+enum {
+ MDB_RTR_TYPE_DISABLED,
+ MDB_RTR_TYPE_TEMP_QUERY,
+ MDB_RTR_TYPE_PERM,
+ MDB_RTR_TYPE_TEMP
+};
+
+enum {
+ MDBA_ROUTER_UNSPEC,
+ MDBA_ROUTER_PORT,
+ __MDBA_ROUTER_MAX,
+};
+#define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1)
+
+/* router port attributes */
+enum {
+ MDBA_ROUTER_PATTR_UNSPEC,
+ MDBA_ROUTER_PATTR_TIMER,
+ MDBA_ROUTER_PATTR_TYPE,
+ __MDBA_ROUTER_PATTR_MAX
+};
+#define MDBA_ROUTER_PATTR_MAX (__MDBA_ROUTER_PATTR_MAX - 1)
+
+struct br_port_msg {
+ __u8 family;
+ __u32 ifindex;
+};
+
+struct br_mdb_entry {
+ __u32 ifindex;
+#define MDB_TEMPORARY 0
+#define MDB_PERMANENT 1
+ __u8 state;
+#define MDB_FLAGS_OFFLOAD (1 << 0)
+ __u8 flags;
+ __u16 vid;
+ struct {
+ union {
+ __be32 ip4;
+ struct in6_addr ip6;
+ } u;
+ __be16 proto;
+ } addr;
+};
+
+enum {
+ MDBA_SET_ENTRY_UNSPEC,
+ MDBA_SET_ENTRY,
+ __MDBA_SET_ENTRY_MAX,
+};
+#define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1)
+
+/* Embedded inside LINK_XSTATS_TYPE_BRIDGE */
+enum {
+ BRIDGE_XSTATS_UNSPEC,
+ BRIDGE_XSTATS_VLAN,
+ BRIDGE_XSTATS_MCAST,
+ BRIDGE_XSTATS_PAD,
+ __BRIDGE_XSTATS_MAX
+};
+#define BRIDGE_XSTATS_MAX (__BRIDGE_XSTATS_MAX - 1)
+
+enum {
+ BR_MCAST_DIR_RX,
+ BR_MCAST_DIR_TX,
+ BR_MCAST_DIR_SIZE
+};
+
+/* IGMP/MLD statistics */
+struct br_mcast_stats {
+ __u64 igmp_v1queries[BR_MCAST_DIR_SIZE];
+ __u64 igmp_v2queries[BR_MCAST_DIR_SIZE];
+ __u64 igmp_v3queries[BR_MCAST_DIR_SIZE];
+ __u64 igmp_leaves[BR_MCAST_DIR_SIZE];
+ __u64 igmp_v1reports[BR_MCAST_DIR_SIZE];
+ __u64 igmp_v2reports[BR_MCAST_DIR_SIZE];
+ __u64 igmp_v3reports[BR_MCAST_DIR_SIZE];
+ __u64 igmp_parse_errors;
+
+ __u64 mld_v1queries[BR_MCAST_DIR_SIZE];
+ __u64 mld_v2queries[BR_MCAST_DIR_SIZE];
+ __u64 mld_leaves[BR_MCAST_DIR_SIZE];
+ __u64 mld_v1reports[BR_MCAST_DIR_SIZE];
+ __u64 mld_v2reports[BR_MCAST_DIR_SIZE];
+ __u64 mld_parse_errors;
+
+ __u64 mcast_bytes[BR_MCAST_DIR_SIZE];
+ __u64 mcast_packets[BR_MCAST_DIR_SIZE];
+};
+#endif /* _LINUX_IF_BRIDGE_H */
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