From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Martin Varghese <martin.varghese@nokia.com>,
"David S. Miller" <davem@davemloft.net>
Subject: [PATCH 5.4 26/37] net: Fixed updating of ethertype in skb_mpls_push()
Date: Tue, 17 Dec 2019 21:09:47 +0100 [thread overview]
Message-ID: <20191217200731.277722200@linuxfoundation.org> (raw)
In-Reply-To: <20191217200721.741054904@linuxfoundation.org>
From: Martin Varghese <martin.varghese@nokia.com>
[ Upstream commit d04ac224b1688f005a84f764cfe29844f8e9da08 ]
The skb_mpls_push 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_push 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(0x0800),ipv4(tos=0/0xfc,ttl=64,frag=no),
actions:push_eth(src=00:00:00:00:00:00,dst=00:00:00:00:00:00),
push_mpls(label=13,tc=0,ttl=64,bos=1,eth_type=0x8847),4
Fixes: 8822e270d697 ("net: core: move push MPLS functionality from OvS to core helper")
Signed-off-by: Martin Varghese <martin.varghese@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/skbuff.h | 2 +-
net/core/skbuff.c | 4 ++--
net/openvswitch/actions.c | 3 ++-
net/sched/act_mpls.c | 3 ++-
4 files changed, 7 insertions(+), 5 deletions(-)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3527,7 +3527,7 @@ int __skb_vlan_pop(struct sk_buff *skb,
int skb_vlan_pop(struct sk_buff *skb);
int skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci);
int skb_mpls_push(struct sk_buff *skb, __be32 mpls_lse, __be16 mpls_proto,
- int mac_len);
+ int mac_len, bool ethernet);
int skb_mpls_pop(struct sk_buff *skb, __be16 next_proto, int mac_len,
bool ethernet);
int skb_mpls_update_lse(struct sk_buff *skb, __be32 mpls_lse);
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -5484,7 +5484,7 @@ static void skb_mod_eth_type(struct sk_b
* Returns 0 on success, -errno otherwise.
*/
int skb_mpls_push(struct sk_buff *skb, __be32 mpls_lse, __be16 mpls_proto,
- int mac_len)
+ int mac_len, bool ethernet)
{
struct mpls_shim_hdr *lse;
int err;
@@ -5515,7 +5515,7 @@ int skb_mpls_push(struct sk_buff *skb, _
lse->label_stack_entry = mpls_lse;
skb_postpush_rcsum(skb, lse, MPLS_HLEN);
- if (skb->dev && skb->dev->type == ARPHRD_ETHER)
+ if (ethernet)
skb_mod_eth_type(skb, eth_hdr(skb), mpls_proto);
skb->protocol = mpls_proto;
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -166,7 +166,8 @@ static int push_mpls(struct sk_buff *skb
int err;
err = skb_mpls_push(skb, mpls->mpls_lse, mpls->mpls_ethertype,
- skb->mac_len);
+ skb->mac_len,
+ ovs_key_mac_proto(key) == MAC_PROTO_ETHERNET);
if (err)
return err;
--- a/net/sched/act_mpls.c
+++ b/net/sched/act_mpls.c
@@ -83,7 +83,8 @@ static int tcf_mpls_act(struct sk_buff *
break;
case TCA_MPLS_ACT_PUSH:
new_lse = tcf_mpls_get_lse(NULL, p, !eth_p_mpls(skb->protocol));
- if (skb_mpls_push(skb, new_lse, p->tcfm_proto, mac_len))
+ if (skb_mpls_push(skb, new_lse, p->tcfm_proto, mac_len,
+ skb->dev && skb->dev->type == ARPHRD_ETHER))
goto drop;
break;
case TCA_MPLS_ACT_MODIFY:
next prev parent reply other threads:[~2019-12-17 20:12 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-17 20:09 [PATCH 5.4 00/37] 5.4.5-stable review Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 01/37] inet: protect against too small mtu values Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 02/37] mqprio: Fix out-of-bounds access in mqprio_dump Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 03/37] net: bridge: deny dev_set_mac_address() when unregistering Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 04/37] net: dsa: fix flow dissection on Tx path Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 05/37] net: ethernet: ti: cpsw: fix extra rx interrupt Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 06/37] net: sched: fix dump qlen for sch_mq/sch_mqprio with NOLOCK subqueues Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 07/37] net_sched: validate TCA_KIND attribute in tc_chain_tmplt_add() Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 08/37] net-sysfs: Call dev_hold always in netdev_queue_add_kobject Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 09/37] net: thunderx: start phy before starting autonegotiation Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 10/37] net/tls: Fix return values to avoid ENOTSUPP Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 11/37] openvswitch: support asymmetric conntrack Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 12/37] tcp: md5: fix potential overestimation of TCP option space Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 13/37] tipc: fix ordering of tipc module init and exit routine Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 14/37] net/mlx5e: Query global pause state before setting prio2buffer Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 15/37] net: ipv6: add net argument to ip6_dst_lookup_flow Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 16/37] net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 17/37] tcp: fix rejected syncookies due to stale timestamps Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 18/37] tcp: tighten acceptance of ACKs not matching a child socket Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 19/37] tcp: Protect accesses to .ts_recent_stamp with {READ,WRITE}_ONCE() Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 20/37] net: core: rename indirect block ingress cb function Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 21/37] net: sched: allow indirect blocks to bind to clsact in TC Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 22/37] cls_flower: Fix the behavior using port ranges with hw-offload Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 23/37] gre: refetch erspan header from skb->data after pskb_may_pull() Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 24/37] Fixed updating of ethertype in function skb_mpls_pop Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 25/37] hsr: fix a NULL pointer dereference in hsr_dev_xmit() Greg Kroah-Hartman
2019-12-17 20:09 ` Greg Kroah-Hartman [this message]
2019-12-17 20:09 ` [PATCH 5.4 27/37] net/mlx5e: Fix TXQ indices to be sequential Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 28/37] act_ct: support asymmetric conntrack Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 29/37] net/mlx5e: Fix SFF 8472 eeprom length Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 30/37] net/mlx5e: Fix freeing flow with kfree() and not kvfree() Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 31/37] net/mlx5e: Fix translation of link mode into speed Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 32/37] net/mlx5e: ethtool, Fix analysis of speed setting Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 33/37] page_pool: do not release pool until inflight == 0 Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 34/37] xdp: obtain the mem_id mutex before trying to remove an entry Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 35/37] ionic: keep users rss hash across lif reset Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 36/37] net: mscc: ocelot: unregister the PTP clock on deinit Greg Kroah-Hartman
2019-12-17 20:09 ` [PATCH 5.4 37/37] r8169: add missing RX enabling for WoL on RTL8125 Greg Kroah-Hartman
2019-12-18 10:24 ` [PATCH 5.4 00/37] 5.4.5-stable review Jon Hunter
2019-12-18 14:34 ` Greg Kroah-Hartman
2019-12-18 14:22 ` Naresh Kamboju
2019-12-18 14:35 ` Greg Kroah-Hartman
2019-12-18 14:48 ` Guenter Roeck
2019-12-18 14:53 ` Greg Kroah-Hartman
2019-12-18 20:59 ` shuah
2019-12-19 8:44 ` Greg Kroah-Hartman
2019-12-18 21:02 ` Geert Uytterhoeven
2019-12-19 8:45 ` Greg Kroah-Hartman
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