diff options
| author | stephen hemminger <shemminger@vyatta.com> | 2012-12-28 18:15:22 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-12-30 02:31:43 -0800 |
| commit | 576eb62598f10c8c7fd75703fe89010cdcfff596 (patch) | |
| tree | 47317f7bc68dc06ad06735eb7c9ba4e271dcd793 | |
| parent | aa1113d9f85da59dcbdd32aeb5d71da566e46def (diff) | |
bridge: respect RFC2863 operational state
The bridge link detection should follow the operational state
of the lower device, rather than the carrier bit. This allows devices
like tunnels that are controlled by userspace control plane to work
with bridge STP link management.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Reviewed-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/bridge/br_if.c | 6 | ||||
| -rw-r--r-- | net/bridge/br_netlink.c | 5 | ||||
| -rw-r--r-- | net/bridge/br_notify.c | 2 | ||||
| -rw-r--r-- | net/bridge/br_stp_if.c | 2 |
4 files changed, 9 insertions, 6 deletions
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index 37fe693471a..1edd71d44a4 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -66,14 +66,14 @@ void br_port_carrier_check(struct net_bridge_port *p) struct net_device *dev = p->dev; struct net_bridge *br = p->br; - if (netif_running(dev) && netif_carrier_ok(dev)) + if (netif_running(dev) && netif_oper_up(dev)) p->path_cost = port_cost(dev); if (!netif_running(br->dev)) return; spin_lock_bh(&br->lock); - if (netif_running(dev) && netif_carrier_ok(dev)) { + if (netif_running(dev) && netif_oper_up(dev)) { if (p->state == BR_STATE_DISABLED) br_stp_enable_port(p); } else { @@ -383,7 +383,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev) spin_lock_bh(&br->lock); changed_addr = br_stp_recalculate_bridge_id(br); - if ((dev->flags & IFF_UP) && netif_carrier_ok(dev) && + if (netif_running(dev) && netif_oper_up(dev) && (br->dev->flags & IFF_UP)) br_stp_enable_port(p); spin_unlock_bh(&br->lock); diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index 97ba0189c6f..caa3f691943 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -181,8 +181,11 @@ static int br_set_port_state(struct net_bridge_port *p, u8 state) if (p->br->stp_enabled == BR_KERNEL_STP) return -EBUSY; + /* if device is not up, change is not allowed + * if link is not present, only allowable state is disabled + */ if (!netif_running(p->dev) || - (!netif_carrier_ok(p->dev) && state != BR_STATE_DISABLED)) + (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED)) return -ENETDOWN; p->state = state; diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c index a76b6213555..1644b3e1f94 100644 --- a/net/bridge/br_notify.c +++ b/net/bridge/br_notify.c @@ -82,7 +82,7 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v break; case NETDEV_UP: - if (netif_carrier_ok(dev) && (br->dev->flags & IFF_UP)) { + if (netif_running(br->dev) && netif_oper_up(dev)) { spin_lock_bh(&br->lock); br_stp_enable_port(p); spin_unlock_bh(&br->lock); diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c index 9d5a414a394..7b5197c7de1 100644 --- a/net/bridge/br_stp_if.c +++ b/net/bridge/br_stp_if.c @@ -54,7 +54,7 @@ void br_stp_enable_bridge(struct net_bridge *br) br_config_bpdu_generation(br); list_for_each_entry(p, &br->port_list, list) { - if ((p->dev->flags & IFF_UP) && netif_carrier_ok(p->dev)) + if (netif_running(p->dev) && netif_oper_up(p->dev)) br_stp_enable_port(p); } |