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authorStephen Hemminger <shemminger@linux-foundation.org>2007-03-21 14:22:44 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:28:48 -0700
commit9cde070874b822d4677f4f01fe146991785813b1 (patch)
tree2e3a444ad82e026237ce99a4f8cad201f6ca807d /net/bridge/br_private.h
parent9cf637473c8535b5abe27fee79254c2d552e042a (diff)
downloadlinux-9cde070874b822d4677f4f01fe146991785813b1.tar.bz2
bridge: add support for user mode STP
This patchset based on work by Aji_Srinivas@emc.com provides allows spanning tree to be controled from userspace. Like hotplug, it uses call_usermodehelper when spanning tree is enabled so there is no visible API change. If call to start usermode STP fails it falls back to existing kernel STP. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Diffstat (limited to 'net/bridge/br_private.h')
-rw-r--r--net/bridge/br_private.h15
1 files changed, 12 insertions, 3 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 3adacdf3406f..974feccd28b1 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -26,7 +26,10 @@
#define BR_PORT_BITS 10
#define BR_MAX_PORTS (1<<BR_PORT_BITS)
-#define BR_VERSION "2.2"
+#define BR_VERSION "2.3"
+
+/* Path to usermode spanning tree program */
+#define BR_STP_PROG "/sbin/bridge-stp"
typedef struct bridge_id bridge_id;
typedef struct mac_addr mac_addr;
@@ -107,7 +110,13 @@ struct net_bridge
u8 group_addr[ETH_ALEN];
u16 root_port;
- unsigned char stp_enabled;
+
+ enum {
+ BR_NO_STP, /* no spanning tree */
+ BR_KERNEL_STP, /* old STP in kernel */
+ BR_USER_STP, /* new RSTP in userspace */
+ } stp_enabled;
+
unsigned char topology_change;
unsigned char topology_change_detected;
@@ -127,7 +136,6 @@ 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);
@@ -209,6 +217,7 @@ 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_set_enabled(struct net_bridge *br, unsigned long val);
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);