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* [BRIDGE]: if no STP then forward all BPDUsStephen Hemminger2007-04-251-2/+8
| | | | | | | | | | | | If a bridge is not running STP, then it has no way to detect a cycle in the network. But if it is not running STP and some other machine or device is running STP, then if STP BPDU's get forwarded to it can detect the cycle. This is how the old 2.4 and early 2.6 code worked. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: drop PAUSE framesStephen Hemminger2007-04-251-1/+6
| | | | | | | | | Pause frames should never make it out of the network device into the stack. But if a device was misconfigured, it might happen. So drop pause frames in bridge. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: don't change packet typeStephen Hemminger2007-04-251-4/+1
| | | | | | | | | | The change to forward STP bpdu's (for usermode STP) through normal path, changed the packet type in the process. Since link local stuff is multicast, it should stay pkt_type = PACKET_MULTICAST. The code was probably copy/pasted incorrectly from the bridge pseudo-device receive path. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* bridge: don't route packets while learningStephen Hemminger2007-04-251-7/+10
| | | | | | | | | While in the STP learning state, don't route packets; wait until forwarding delay has expired. The purpose of the forwarding delay is to detect loops in the network, and if a brouter started up and started forwarding, it could cause a flood. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
* bridge: eliminate call by referenceStephen Hemminger2007-04-251-11/+9
| | | | | | | | Change the bridging hook to be simple function with return value rather than modifying the skb argument. This could generate better code and is cleaner. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
* [BRIDGE]: faster compare for link local addressesStephen Hemminger2007-04-251-1/+5
| | | | | | | | Use logic operations rather than memcmp() to compare destination address with link local multicast addresses. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] BRIDGE: Fix whitespace errors.YOSHIFUJI Hideaki2007-02-101-2/+2
| | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: keep track of received multicast packetsStephen Hemminger2006-05-051-0/+1
| | | | | | | | It makes sense to add this simple statistic to keep track of received multicast packets. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: receive link-local on disabled ports.Stephen Hemminger2006-04-111-3/+0
| | | | | | | | | | This change allows link local packets (like 802.3ad and Spanning Tree Protocol) to be processed even when the bridge is not using the port. It fixes the chicken-egg problem for bridging a bonded device, and may also fix problems with spanning tree failover. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: Remove duplicate const from is_link_local() argument type.Andrew Morton2006-03-201-1/+1
| | | | | Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: allow show/store of group multicast addressStephen Hemminger2006-03-201-3/+4
| | | | | | | | | | | | | | Bridge's communicate with each other using Spanning Tree Protocol over a standard multicast address. There are times when testing or layering bridges over existing topologies or tunnels, when it is useful to use alternative multicast addresses for STP packets. The 802.1d standard has some unused addresses, that can be used for this. This patch is restrictive in that it only allows one of the possible addresses in the standard. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: use llc for receiving STP packetsStephen Hemminger2006-03-201-9/+23
| | | | | | | | | | | | | | | Use LLC for the receive path of Spanning Tree Protocol packets. This allows link local multicast packets to be received by other protocols (if they care), and uses the existing LLC code to get STP packets back into bridge code. The bridge multicast address is also checked, so bridges using other link local multicast addresses are ignored. This allows for use of different multicast addresses to define separate STP domains. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: optimize frame pass upStephen Hemminger2006-03-201-7/+1
| | | | | | | | | The netfilter hook that is used to receive frames doesn't need to be a stub. It is only called in two ways, both of which ignore the return value. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: fix for RCU and deadlock on device removalStephen Hemminger2006-02-091-7/+12
| | | | | | | | | Change Bridge receive path to correctly handle RCU removal of device from bridge. Also fixes deadlock between carrier_check and del_nbp. This replaces the previous deleted flag fix. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Use newer is_multicast_ether_addr() in some filesKris Katterjohn2006-01-061-1/+1
| | | | | | | | This uses is_multicast_ether_addr() because it has recently been changed to do the same thing these seperate tests are doing. Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: filter packets in learning stateStephen Hemminger2006-01-031-4/+7
| | | | | | | | While in the learning state, run filters but drop the result. This prevents us from acquiring bad fdb entries in learning state. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: Use ether_compareStephen Hemminger2005-10-311-1/+1
| | | | | | | Use compare_ether_addr in bridge code. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
* [NETFILTER]: Kill nf_debugPatrick McHardy2005-06-211-4/+0
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: receive path optimizationStephen Hemminger2005-05-291-1/+1
| | | | | | | | | | | | This improves the bridge local receive path by avoiding going through another softirq. The bridge receive path is already being called from a netif_receive_skb() there is no point in going through another receiveq round trip. Recursion is limited because bridge can never be a port of a bridge so handle_bridge() always returns. Signed-off-by: David S. Miller <davem@davemloft.net>
* [BRIDGE]: prevent bad forwarding table updatesStephen Hemminger2005-05-291-2/+4
| | | | | | | | | | Avoid poisoning of the bridge forwarding table by frames that have been dropped by filtering. This prevents spoofed source addresses on hostile side of bridge from causing packet leakage, a small but possible security risk. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+144
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!
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