diff options
Diffstat (limited to 'net/bridge/br_private.h')
| -rw-r--r-- | net/bridge/br_private.h | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h new file mode 100644 index 000000000..084e81b4b --- /dev/null +++ b/net/bridge/br_private.h @@ -0,0 +1,199 @@ +/* + * Linux ethernet bridge + * + * Authors: + * Lennert Buytenhek <buytenh@gnu.org> + * + * $Id: br_private.h,v 1.1 2000/02/18 16:47:12 davem Exp $ + * + * 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 _BR_PRIVATE_H +#define _BR_PRIVATE_H + +#include <linux/netdevice.h> +#include <linux/miscdevice.h> +#include <linux/if_bridge.h> +#include "br_private_timer.h" + +#define BR_HASH_BITS 8 +#define BR_HASH_SIZE (1 << BR_HASH_BITS) + +#define BR_HOLD_TIME (1*HZ) + +typedef struct bridge_id bridge_id; +typedef struct mac_addr mac_addr; +typedef __u16 port_id; + +struct bridge_id +{ + unsigned char prio[2]; + unsigned char addr[6]; +}; + +struct mac_addr +{ + unsigned char addr[6]; + unsigned char pad[2]; +}; + +struct net_bridge_fdb_entry +{ + struct net_bridge_fdb_entry *next_hash; + struct net_bridge_fdb_entry **pprev_hash; + atomic_t use_count; + mac_addr addr; + struct net_bridge_port *dst; + unsigned long ageing_timer; + unsigned is_local:1; + unsigned is_static:1; +}; + +struct net_bridge_port +{ + struct net_bridge_port *next; + struct net_bridge *br; + struct net_device *dev; + int port_no; + + /* STP */ + port_id port_id; + int state; + int path_cost; + bridge_id designated_root; + int designated_cost; + bridge_id designated_bridge; + port_id designated_port; + unsigned topology_change_ack:1; + unsigned config_pending:1; + int priority; + + struct br_timer forward_delay_timer; + struct br_timer hold_timer; + struct br_timer message_age_timer; +}; + +struct net_bridge +{ + struct net_bridge *next; + rwlock_t lock; + struct net_bridge_port *port_list; + char name[IFNAMSIZ]; + struct net_device dev; + struct net_device_stats statistics; + rwlock_t hash_lock; + struct net_bridge_fdb_entry *hash[BR_HASH_SIZE]; + struct timer_list tick; + + /* STP */ + bridge_id designated_root; + int root_path_cost; + int root_port; + int max_age; + int hello_time; + int forward_delay; + bridge_id bridge_id; + int bridge_max_age; + int bridge_hello_time; + int bridge_forward_delay; + unsigned stp_enabled:1; + unsigned topology_change:1; + unsigned topology_change_detected:1; + + struct br_timer hello_timer; + struct br_timer tcn_timer; + struct br_timer topology_change_timer; + struct br_timer gc_timer; + + int ageing_time; + int gc_interval; +}; + +struct notifier_block br_device_notifier; +unsigned char bridge_ula[5]; + +/* br.c */ +void br_dec_use_count(void); +void br_inc_use_count(void); + +/* br_device.c */ +void br_dev_setup(struct net_device *dev); + +/* br_fdb.c */ +void br_fdb_changeaddr(struct net_bridge_port *p, + unsigned char *newaddr); +void br_fdb_cleanup(struct net_bridge *br); +void br_fdb_delete_by_port(struct net_bridge *br, + struct net_bridge_port *p); +struct net_bridge_fdb_entry *br_fdb_get(struct net_bridge *br, + unsigned char *addr); +void br_fdb_put(struct net_bridge_fdb_entry *ent); +int br_fdb_get_entries(struct net_bridge *br, + unsigned char *_buf, + int maxnum, + int offset); +void br_fdb_insert(struct net_bridge *br, + struct net_bridge_port *source, + unsigned char *addr, + int is_local); + +/* br_forward.c */ +void br_forward(struct net_bridge_port *to, + struct sk_buff *skb); +void br_flood(struct net_bridge *br, + struct sk_buff *skb, + int clone); + +/* br_if.c */ +int br_add_bridge(char *name); +int br_del_bridge(char *name); +int br_add_if(struct net_bridge *br, + struct net_device *dev); +int br_del_if(struct net_bridge *br, + struct net_device *dev); +int br_get_bridge_ifindices(int *indices, + int num); +void br_get_port_ifindices(struct net_bridge *br, + int *ifindices); + +/* br_input.c */ +void br_handle_frame(struct sk_buff *skb); + +/* br_ioctl.c */ +void br_call_ioctl_atomic(void (*fn)(void)); +int br_ioctl(struct net_bridge *br, + unsigned int cmd, + unsigned long arg0, + unsigned long arg1, + unsigned long arg2); +int br_ioctl_deviceless_stub(unsigned long arg); + +/* br_stp.c */ +int br_is_root_bridge(struct net_bridge *br); +struct net_bridge_port *br_get_port(struct net_bridge *br, + int port_no); +void br_init_port(struct net_bridge_port *p); +port_id br_make_port_id(struct net_bridge_port *p); +void br_become_designated_port(struct net_bridge_port *p); + +/* br_stp_if.c */ +void br_stp_enable_bridge(struct net_bridge *br); +void br_stp_disable_bridge(struct net_bridge *br); +void br_stp_enable_port(struct net_bridge_port *p); +void br_stp_disable_port(struct net_bridge_port *p); +void br_stp_recalculate_bridge_id(struct net_bridge *br); +void br_stp_set_bridge_priority(struct net_bridge *br, + int newprio); +void br_stp_set_port_priority(struct net_bridge_port *p, + int newprio); +void br_stp_set_path_cost(struct net_bridge_port *p, + int path_cost); + +/* br_stp_bpdu.c */ +void br_stp_handle_bpdu(struct sk_buff *skb); + +#endif |