From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 net/bridge/br_private.h | 244 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 244 insertions(+)
 create mode 100644 net/bridge/br_private.h

(limited to 'net/bridge/br_private.h')

diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
new file mode 100644
index 0000000..54d63f13
--- /dev/null
+++ b/net/bridge/br_private.h
@@ -0,0 +1,244 @@
+/*
+ *	Linux ethernet bridge
+ *
+ *	Authors:
+ *	Lennert Buytenhek		<buytenh@gnu.org>
+ *
+ *	$Id: br_private.h,v 1.7 2001/12/24 00:59:55 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>
+
+#define BR_HASH_BITS 8
+#define BR_HASH_SIZE (1 << BR_HASH_BITS)
+
+#define BR_HOLD_TIME (1*HZ)
+
+#define BR_PORT_BITS	10
+#define BR_MAX_PORTS	(1<<BR_PORT_BITS)
+
+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];
+};
+
+struct net_bridge_fdb_entry
+{
+	struct hlist_node		hlist;
+	struct net_bridge_port		*dst;
+
+	struct rcu_head			rcu;
+	atomic_t			use_count;
+	unsigned long			ageing_timer;
+	mac_addr			addr;
+	unsigned char			is_local;
+	unsigned char			is_static;
+};
+
+struct net_bridge_port
+{
+	struct net_bridge		*br;
+	struct net_device		*dev;
+	struct list_head		list;
+
+	/* STP */
+	u8				priority;
+	u8				state;
+	u16				port_no;
+	unsigned char			topology_change_ack;
+	unsigned char			config_pending;
+	port_id				port_id;
+	port_id				designated_port;
+	bridge_id			designated_root;
+	bridge_id			designated_bridge;
+	u32				path_cost;
+	u32				designated_cost;
+
+	struct timer_list		forward_delay_timer;
+	struct timer_list		hold_timer;
+	struct timer_list		message_age_timer;
+	struct kobject			kobj;
+	struct rcu_head			rcu;
+};
+
+struct net_bridge
+{
+	spinlock_t			lock;
+	struct list_head		port_list;
+	struct net_device		*dev;
+	struct net_device_stats		statistics;
+	spinlock_t			hash_lock;
+	struct hlist_head		hash[BR_HASH_SIZE];
+	struct list_head		age_list;
+
+	/* STP */
+	bridge_id			designated_root;
+	bridge_id			bridge_id;
+	u32				root_path_cost;
+	unsigned long			max_age;
+	unsigned long			hello_time;
+	unsigned long			forward_delay;
+	unsigned long			bridge_max_age;
+	unsigned long			ageing_time;
+	unsigned long			bridge_hello_time;
+	unsigned long			bridge_forward_delay;
+
+	u16				root_port;
+	unsigned char			stp_enabled;
+	unsigned char			topology_change;
+	unsigned char			topology_change_detected;
+
+	struct timer_list		hello_timer;
+	struct timer_list		tcn_timer;
+	struct timer_list		topology_change_timer;
+	struct timer_list		gc_timer;
+	struct kobject			ifobj;
+};
+
+extern struct notifier_block br_device_notifier;
+extern const unsigned char bridge_ula[6];
+
+/* 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);
+}
+
+
+/* br_device.c */
+extern void br_dev_setup(struct net_device *dev);
+extern int br_dev_xmit(struct sk_buff *skb, struct net_device *dev);
+
+/* br_fdb.c */
+extern void br_fdb_init(void);
+extern void br_fdb_fini(void);
+extern void br_fdb_changeaddr(struct net_bridge_port *p,
+			      const unsigned char *newaddr);
+extern void br_fdb_cleanup(unsigned long arg);
+extern void br_fdb_delete_by_port(struct net_bridge *br,
+			   struct net_bridge_port *p);
+extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
+						 const unsigned char *addr);
+extern struct net_bridge_fdb_entry *br_fdb_get(struct net_bridge *br,
+					       unsigned char *addr);
+extern void br_fdb_put(struct net_bridge_fdb_entry *ent);
+extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, 
+			  unsigned long count, unsigned long off);
+extern int br_fdb_insert(struct net_bridge *br,
+			 struct net_bridge_port *source,
+			 const unsigned char *addr);
+extern void br_fdb_update(struct net_bridge *br,
+			  struct net_bridge_port *source,
+			  const unsigned char *addr);
+
+/* br_forward.c */
+extern void br_deliver(const struct net_bridge_port *to,
+		struct sk_buff *skb);
+extern int br_dev_queue_push_xmit(struct sk_buff *skb);
+extern void br_forward(const struct net_bridge_port *to,
+		struct sk_buff *skb);
+extern int br_forward_finish(struct sk_buff *skb);
+extern void br_flood_deliver(struct net_bridge *br,
+		      struct sk_buff *skb,
+		      int clone);
+extern void br_flood_forward(struct net_bridge *br,
+		      struct sk_buff *skb,
+		      int clone);
+
+/* br_if.c */
+extern int br_add_bridge(const char *name);
+extern int br_del_bridge(const char *name);
+extern void br_cleanup_bridges(void);
+extern int br_add_if(struct net_bridge *br,
+	      struct net_device *dev);
+extern int br_del_if(struct net_bridge *br,
+	      struct net_device *dev);
+extern int br_min_mtu(const struct net_bridge *br);
+
+/* br_input.c */
+extern int br_handle_frame_finish(struct sk_buff *skb);
+extern int br_handle_frame(struct net_bridge_port *p, struct sk_buff **pskb);
+
+/* br_ioctl.c */
+extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+extern int br_ioctl_deviceless_stub(unsigned int cmd, void __user *arg);
+
+/* br_netfilter.c */
+extern int br_netfilter_init(void);
+extern void br_netfilter_fini(void);
+
+/* br_stp.c */
+extern void br_log_state(const struct net_bridge_port *p);
+extern struct net_bridge_port *br_get_port(struct net_bridge *br,
+				    	   u16 port_no);
+extern void br_init_port(struct net_bridge_port *p);
+extern void br_become_designated_port(struct net_bridge_port *p);
+
+/* br_stp_if.c */
+extern void br_stp_enable_bridge(struct net_bridge *br);
+extern void br_stp_disable_bridge(struct net_bridge *br);
+extern void br_stp_enable_port(struct net_bridge_port *p);
+extern void br_stp_disable_port(struct net_bridge_port *p);
+extern void br_stp_recalculate_bridge_id(struct net_bridge *br);
+extern void br_stp_set_bridge_priority(struct net_bridge *br,
+				       u16 newprio);
+extern void br_stp_set_port_priority(struct net_bridge_port *p,
+				     u8 newprio);
+extern void br_stp_set_path_cost(struct net_bridge_port *p,
+				 u32 path_cost);
+extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id);
+
+/* br_stp_bpdu.c */
+extern int br_stp_handle_bpdu(struct sk_buff *skb);
+
+/* br_stp_timer.c */
+extern void br_stp_timer_init(struct net_bridge *br);
+extern void br_stp_port_timer_init(struct net_bridge_port *p);
+extern unsigned long br_timer_value(const struct timer_list *timer);
+
+/* br.c */
+extern struct net_bridge_fdb_entry *(*br_fdb_get_hook)(struct net_bridge *br,
+						       unsigned char *addr);
+extern void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent);
+
+
+#ifdef CONFIG_SYSFS
+/* br_sysfs_if.c */
+extern int br_sysfs_addif(struct net_bridge_port *p);
+extern void br_sysfs_removeif(struct net_bridge_port *p);
+extern void br_sysfs_freeif(struct net_bridge_port *p);
+
+/* br_sysfs_br.c */
+extern int br_sysfs_addbr(struct net_device *dev);
+extern void br_sysfs_delbr(struct net_device *dev);
+
+#else
+
+#define br_sysfs_addif(p)	(0)
+#define br_sysfs_removeif(p)	do { } while(0)
+#define br_sysfs_freeif(p)	kfree(p)
+#define br_sysfs_addbr(dev)	(0)
+#define br_sysfs_delbr(dev)	do { } while(0)
+#endif /* CONFIG_SYSFS */
+
+#endif
-- 
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