2012-10-13 16:46:48 +07:00
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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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _UAPI_LINUX_IF_BRIDGE_H
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#define _UAPI_LINUX_IF_BRIDGE_H
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#include <linux/types.h>
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2013-08-02 06:17:47 +07:00
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#include <linux/if_ether.h>
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2014-11-05 02:21:21 +07:00
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#include <linux/in6.h>
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2012-10-13 16:46:48 +07:00
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#define SYSFS_BRIDGE_ATTR "bridge"
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#define SYSFS_BRIDGE_FDB "brforward"
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#define SYSFS_BRIDGE_PORT_SUBDIR "brif"
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#define SYSFS_BRIDGE_PORT_ATTR "brport"
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#define SYSFS_BRIDGE_PORT_LINK "bridge"
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#define BRCTL_VERSION 1
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#define BRCTL_GET_VERSION 0
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#define BRCTL_GET_BRIDGES 1
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#define BRCTL_ADD_BRIDGE 2
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#define BRCTL_DEL_BRIDGE 3
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#define BRCTL_ADD_IF 4
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#define BRCTL_DEL_IF 5
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#define BRCTL_GET_BRIDGE_INFO 6
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#define BRCTL_GET_PORT_LIST 7
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#define BRCTL_SET_BRIDGE_FORWARD_DELAY 8
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#define BRCTL_SET_BRIDGE_HELLO_TIME 9
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#define BRCTL_SET_BRIDGE_MAX_AGE 10
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#define BRCTL_SET_AGEING_TIME 11
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#define BRCTL_SET_GC_INTERVAL 12
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#define BRCTL_GET_PORT_INFO 13
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#define BRCTL_SET_BRIDGE_STP_STATE 14
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#define BRCTL_SET_BRIDGE_PRIORITY 15
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#define BRCTL_SET_PORT_PRIORITY 16
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#define BRCTL_SET_PATH_COST 17
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#define BRCTL_GET_FDB_ENTRIES 18
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#define BR_STATE_DISABLED 0
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#define BR_STATE_LISTENING 1
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#define BR_STATE_LEARNING 2
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#define BR_STATE_FORWARDING 3
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#define BR_STATE_BLOCKING 4
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struct __bridge_info {
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__u64 designated_root;
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__u64 bridge_id;
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__u32 root_path_cost;
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__u32 max_age;
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__u32 hello_time;
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__u32 forward_delay;
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__u32 bridge_max_age;
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__u32 bridge_hello_time;
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__u32 bridge_forward_delay;
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__u8 topology_change;
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__u8 topology_change_detected;
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__u8 root_port;
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__u8 stp_enabled;
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__u32 ageing_time;
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__u32 gc_interval;
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__u32 hello_timer_value;
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__u32 tcn_timer_value;
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__u32 topology_change_timer_value;
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__u32 gc_timer_value;
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};
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struct __port_info {
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__u64 designated_root;
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__u64 designated_bridge;
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__u16 port_id;
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__u16 designated_port;
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__u32 path_cost;
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__u32 designated_cost;
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__u8 state;
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__u8 top_change_ack;
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__u8 config_pending;
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__u8 unused0;
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__u32 message_age_timer_value;
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__u32 forward_delay_timer_value;
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__u32 hold_timer_value;
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};
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struct __fdb_entry {
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2013-08-02 06:17:47 +07:00
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__u8 mac_addr[ETH_ALEN];
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2012-10-13 16:46:48 +07:00
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__u8 port_no;
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__u8 is_local;
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__u32 ageing_timer_value;
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__u8 port_hi;
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__u8 pad0;
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__u16 unused;
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};
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2012-10-24 15:13:03 +07:00
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/* Bridge Flags */
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#define BRIDGE_FLAGS_MASTER 1 /* Bridge command to/from master */
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#define BRIDGE_FLAGS_SELF 2 /* Bridge command to/from lowerdev */
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2012-10-13 16:46:48 +07:00
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2012-10-24 15:13:03 +07:00
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#define BRIDGE_MODE_VEB 0 /* Default loopback mode */
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#define BRIDGE_MODE_VEPA 1 /* 802.1Qbg defined VEPA mode */
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2014-12-09 05:04:19 +07:00
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#define BRIDGE_MODE_UNDEF 0xFFFF /* mode undefined */
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2012-10-24 15:13:03 +07:00
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/* Bridge management nested attributes
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* [IFLA_AF_SPEC] = {
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* [IFLA_BRIDGE_FLAGS]
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* [IFLA_BRIDGE_MODE]
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2013-02-13 19:00:12 +07:00
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* [IFLA_BRIDGE_VLAN_INFO]
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2012-10-24 15:13:03 +07:00
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* }
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*/
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enum {
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IFLA_BRIDGE_FLAGS,
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IFLA_BRIDGE_MODE,
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2013-02-13 19:00:12 +07:00
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IFLA_BRIDGE_VLAN_INFO,
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2012-10-24 15:13:03 +07:00
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__IFLA_BRIDGE_MAX,
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};
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#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
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2012-12-07 07:04:48 +07:00
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2013-02-13 19:00:12 +07:00
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#define BRIDGE_VLAN_INFO_MASTER (1<<0) /* Operate on Bridge device as well */
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2013-02-13 19:00:15 +07:00
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#define BRIDGE_VLAN_INFO_PVID (1<<1) /* VLAN is PVID, ingress untagged */
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2013-02-13 19:00:20 +07:00
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#define BRIDGE_VLAN_INFO_UNTAGGED (1<<2) /* VLAN egresses untagged */
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2015-01-10 22:31:12 +07:00
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#define BRIDGE_VLAN_INFO_RANGE_BEGIN (1<<3) /* VLAN is start of vlan range */
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#define BRIDGE_VLAN_INFO_RANGE_END (1<<4) /* VLAN is end of vlan range */
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bridge: vlan: add per-vlan struct and move to rhashtables
This patch changes the bridge vlan implementation to use rhashtables
instead of bitmaps. The main motivation behind this change is that we
need extensible per-vlan structures (both per-port and global) so more
advanced features can be introduced and the vlan support can be
extended. I've tried to break this up but the moment net_port_vlans is
changed and the whole API goes away, thus this is a larger patch.
A few short goals of this patch are:
- Extensible per-vlan structs stored in rhashtables and a sorted list
- Keep user-visible behaviour (compressed vlans etc)
- Keep fastpath ingress/egress logic the same (optimizations to come
later)
Here's a brief list of some of the new features we'd like to introduce:
- per-vlan counters
- vlan ingress/egress mapping
- per-vlan igmp configuration
- vlan priorities
- avoid fdb entries replication (e.g. local fdb scaling issues)
The structure is kept single for both global and per-port entries so to
avoid code duplication where possible and also because we'll soon introduce
"port0 / aka bridge as port" which should simplify things further
(thanks to Vlad for the suggestion!).
Now we have per-vlan global rhashtable (bridge-wide) and per-vlan port
rhashtable, if an entry is added to a port it'll get a pointer to its
global context so it can be quickly accessed later. There's also a
sorted vlan list which is used for stable walks and some user-visible
behaviour such as the vlan ranges, also for error paths.
VLANs are stored in a "vlan group" which currently contains the
rhashtable, sorted vlan list and the number of "real" vlan entries.
A good side-effect of this change is that it resembles how hw keeps
per-vlan data.
One important note after this change is that if a VLAN is being looked up
in the bridge's rhashtable for filtering purposes (or to check if it's an
existing usable entry, not just a global context) then the new helper
br_vlan_should_use() needs to be used if the vlan is found. In case the
lookup is done only with a port's vlan group, then this check can be
skipped.
Things tested so far:
- basic vlan ingress/egress
- pvids
- untagged vlans
- undef CONFIG_BRIDGE_VLAN_FILTERING
- adding/deleting vlans in different scenarios (with/without global ctx,
while transmitting traffic, in ranges etc)
- loading/removing the module while having/adding/deleting vlans
- extracting bridge vlan information (user ABI), compressed requests
- adding/deleting fdbs on vlans
- bridge mac change, promisc mode
- default pvid change
- kmemleak ON during the whole time
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-26 00:00:11 +07:00
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#define BRIDGE_VLAN_INFO_BRENTRY (1<<5) /* Global bridge VLAN entry */
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2013-02-13 19:00:12 +07:00
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struct bridge_vlan_info {
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2013-02-14 12:32:31 +07:00
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__u16 flags;
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__u16 vid;
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2013-02-13 19:00:12 +07:00
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};
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2012-12-07 07:04:48 +07:00
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/* Bridge multicast database attributes
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* [MDBA_MDB] = {
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* [MDBA_MDB_ENTRY] = {
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2016-02-16 18:46:54 +07:00
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* [MDBA_MDB_ENTRY_INFO] {
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* struct br_mdb_entry
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* [MDBA_MDB_EATTR attributes]
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* }
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2012-12-07 07:04:48 +07:00
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* }
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* }
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* [MDBA_ROUTER] = {
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2016-02-27 03:20:04 +07:00
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* [MDBA_ROUTER_PORT] = {
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* u32 ifindex
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* [MDBA_ROUTER_PATTR attributes]
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* }
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2012-12-07 07:04:48 +07:00
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* }
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*/
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enum {
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MDBA_UNSPEC,
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MDBA_MDB,
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MDBA_ROUTER,
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__MDBA_MAX,
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};
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#define MDBA_MAX (__MDBA_MAX - 1)
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enum {
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MDBA_MDB_UNSPEC,
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MDBA_MDB_ENTRY,
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__MDBA_MDB_MAX,
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};
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#define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1)
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enum {
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MDBA_MDB_ENTRY_UNSPEC,
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MDBA_MDB_ENTRY_INFO,
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__MDBA_MDB_ENTRY_MAX,
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};
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#define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1)
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2016-02-16 18:46:54 +07:00
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/* per mdb entry additional attributes */
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enum {
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MDBA_MDB_EATTR_UNSPEC,
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MDBA_MDB_EATTR_TIMER,
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__MDBA_MDB_EATTR_MAX
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};
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#define MDBA_MDB_EATTR_MAX (__MDBA_MDB_EATTR_MAX - 1)
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2016-02-27 03:20:01 +07:00
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/* multicast router types */
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enum {
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MDB_RTR_TYPE_DISABLED,
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MDB_RTR_TYPE_TEMP_QUERY,
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MDB_RTR_TYPE_PERM,
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2016-02-27 03:20:03 +07:00
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MDB_RTR_TYPE_TEMP
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2016-02-27 03:20:01 +07:00
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};
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2012-12-07 07:04:48 +07:00
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enum {
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MDBA_ROUTER_UNSPEC,
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MDBA_ROUTER_PORT,
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__MDBA_ROUTER_MAX,
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};
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#define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1)
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2016-02-27 03:20:04 +07:00
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/* router port attributes */
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enum {
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MDBA_ROUTER_PATTR_UNSPEC,
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MDBA_ROUTER_PATTR_TIMER,
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MDBA_ROUTER_PATTR_TYPE,
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__MDBA_ROUTER_PATTR_MAX
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};
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#define MDBA_ROUTER_PATTR_MAX (__MDBA_ROUTER_PATTR_MAX - 1)
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2012-12-07 07:04:48 +07:00
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struct br_port_msg {
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2012-12-12 05:23:08 +07:00
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__u8 family;
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2012-12-07 07:04:48 +07:00
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__u32 ifindex;
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};
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struct br_mdb_entry {
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__u32 ifindex;
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2012-12-15 05:09:51 +07:00
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#define MDB_TEMPORARY 0
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#define MDB_PERMANENT 1
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__u8 state;
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2016-02-03 15:57:04 +07:00
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#define MDB_FLAGS_OFFLOAD (1 << 0)
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__u8 flags;
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2015-07-10 22:02:08 +07:00
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__u16 vid;
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2012-12-07 07:04:48 +07:00
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struct {
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union {
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__be32 ip4;
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struct in6_addr ip6;
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} u;
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__be16 proto;
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} addr;
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};
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2012-12-12 05:23:08 +07:00
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enum {
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MDBA_SET_ENTRY_UNSPEC,
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MDBA_SET_ENTRY,
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__MDBA_SET_ENTRY_MAX,
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};
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#define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1)
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2012-10-13 16:46:48 +07:00
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#endif /* _UAPI_LINUX_IF_BRIDGE_H */
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