BMC/Intel-BMC/linux.git/net/bridge/br_forward.c, branch dev-5.14-intel

net: bridge: mcast: add wrappers for router node retrieval

2021-05-13T21:04:31+00:00

In preparation for the upcoming split of multicast router state into their IPv4 and IPv6 variants and to avoid IPv6 #ifdef clutter later add two wrapper functions for router node retrieval in the payload forwarding code. Signed-off-by: Linus Lüssing Signed-off-by: David S. Miller

net: bridge: mcast: rename multicast router lists and timers

2021-05-13T21:04:31+00:00

In preparation for the upcoming split of multicast router state into their IPv4 and IPv6 variants, rename the affected variable to the IPv4 version first to avoid some renames in later commits. Signed-off-by: Linus Lüssing Signed-off-by: David S. Miller

net: bridge: check vlan with eth_type_vlan() method

2021-01-18T22:27:33+00:00

Replace some checks for ETH_P_8021Q and ETH_P_8021AD with eth_type_vlan(). Signed-off-by: Menglong Dong Acked-by: Nikolay Aleksandrov Link: https://lore.kernel.org/r/20210117080950.122761-1-dong.menglong@zte.com.cn Signed-off-by: Jakub Kicinski

net: bridge: mcast: when forwarding handle filter mode and blocked flag

2020-09-23T20:24:35+00:00

We need to avoid forwarding to ports in MCAST_INCLUDE filter mode when the mdst entry is a *,G or when the port has the blocked flag. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller

net: bridge: mcast: add sg_port rhashtable

2020-09-23T20:24:34+00:00

To speedup S,G forward handling we need to be able to quickly find out if a port is a member of an S,G group. To do that add a global S,G port rhashtable with key: source addr, group addr, protocol, vid (all br_ip fields) and port pointer. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller

net: bridge: check port state before br_allowed_egress

2020-01-24T11:58:14+00:00

If we make sure that br_allowed_egress is called only when we have BR_STATE_FORWARDING state then we can avoid a test later when we add per-vlan state. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32+00:00

Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

net: bridge: update multicast stats from maybe_deliver()

2019-04-04T17:49:27+00:00

Simplify this code by updating bridge multicast stats from maybe_deliver(). Note that commit 6db6f0eae605 ("bridge: multicast to unicast"), in case the port flag BR_MULTICAST_TO_UNICAST is set, never updates the previous port pointer, therefore it is always going to be different from the existing port in this deduplicated list iteration. Signed-off-by: Pablo Neira Ayuso Acked-by: Nikolay Aleksandrov Signed-off-by: David S. Miller

net: bridge: Fix ethernet header pointer before check skb forwardable

2019-01-18T05:55:15+00:00

The skb header should be set to ethernet header before using is_skb_forwardable. Because the ethernet header length has been considered in is_skb_forwardable(including dev->hard_header_len length). To reproduce the issue: 1, add 2 ports on linux bridge br using following commands: $ brctl addbr br $ brctl addif br eth0 $ brctl addif br eth1 2, the MTU of eth0 and eth1 is 1500 3, send a packet(Data 1480, UDP 8, IP 20, Ethernet 14, VLAN 4) from eth0 to eth1 So the expect result is packet larger than 1500 cannot pass through eth0 and eth1. But currently, the packet passes through success, it means eth1's MTU limit doesn't take effect. Fixes: f6367b4660dd ("bridge: use is_skb_forwardable in forward path") Cc: bridge@lists.linux-foundation.org Cc: Nkolay Aleksandrov Cc: Roopa Prabhu Cc: Stephen Hemminger Signed-off-by: Yunjian Wang Signed-off-by: David S. Miller

net: clear skb->tstamp in bridge forwarding path

2019-01-12T02:26:01+00:00

Matteo reported forwarding issues inside the linux bridge, if the enslaved interfaces use the fq qdisc. Similar to commit 8203e2d844d3 ("net: clear skb->tstamp in forwarding paths"), we need to clear the tstamp field in the bridge forwarding path. Fixes: 80b14dee2bea ("net: Add a new socket option for a future transmit time.") Fixes: fb420d5d91c1 ("tcp/fq: move back to CLOCK_MONOTONIC") Reported-and-tested-by: Matteo Croce Signed-off-by: Paolo Abeni Acked-by: Nikolay Aleksandrov Acked-by: Roopa Prabhu Reviewed-by: Eric Dumazet Signed-off-by: David S. Miller