diff options
| author | Martin Varghese <martin.varghese@nokia.com> | 2019-12-02 10:49:51 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-18 16:08:53 +0100 |
| commit | 2cbaf5fb573a5f150109c11d9e4a99006b885702 (patch) | |
| tree | f2642db2e51a0181fdf0b8fdf9c715ca060c5769 /net/sched | |
| parent | 23fbdd5d1e826454a1ce199e716e2015033212c4 (diff) | |
Fixed updating of ethertype in function skb_mpls_pop
[ Upstream commit 040b5cfbcefa263ccf2c118c4938308606bb7ed8 ]
The skb_mpls_pop was not updating ethertype of an ethernet packet if the
packet was originally received from a non ARPHRD_ETHER device.
In the below OVS data path flow, since the device corresponding to port 7
is an l3 device (ARPHRD_NONE) the skb_mpls_pop function does not update
the ethertype of the packet even though the previous push_eth action had
added an ethernet header to the packet.
recirc_id(0),in_port(7),eth_type(0x8847),
mpls(label=12/0xfffff,tc=0/0,ttl=0/0x0,bos=1/1),
actions:push_eth(src=00:00:00:00:00:00,dst=00:00:00:00:00:00),
pop_mpls(eth_type=0x800),4
Fixes: ed246cee09b9 ("net: core: move pop MPLS functionality from OvS to core helper")
Signed-off-by: Martin Varghese <martin.varghese@nokia.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/act_mpls.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/sched/act_mpls.c b/net/sched/act_mpls.c index 4cf6c553bb0bb..bf74a6c4990c7 100644 --- a/net/sched/act_mpls.c +++ b/net/sched/act_mpls.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) /* Copyright (C) 2019 Netronome Systems, Inc. */ +#include <linux/if_arp.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> @@ -76,7 +77,8 @@ static int tcf_mpls_act(struct sk_buff *skb, const struct tc_action *a, switch (p->tcfm_action) { case TCA_MPLS_ACT_POP: - if (skb_mpls_pop(skb, p->tcfm_proto, mac_len)) + if (skb_mpls_pop(skb, p->tcfm_proto, mac_len, + skb->dev && skb->dev->type == ARPHRD_ETHER)) goto drop; break; case TCA_MPLS_ACT_PUSH: |