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| author | Alexander Duyck <alexander.h.duyck@redhat.com> | 2015-05-27 07:16:49 -0700 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-08-27 13:26:13 -0400 |
| commit | cfcf92c2f029f48d3681df800abb6f31d06e1a86 (patch) | |
| tree | 112722aee1dd29d272c49d91bb097984b4a1c39e /net/xfrm | |
| parent | 5508c2605a492642fec53a4f77e354dde2e99e8c (diff) | |
| download | linux-stable-cfcf92c2f029f48d3681df800abb6f31d06e1a86.tar.gz linux-stable-cfcf92c2f029f48d3681df800abb6f31d06e1a86.tar.bz2 linux-stable-cfcf92c2f029f48d3681df800abb6f31d06e1a86.zip | |
xfrm: Override skb->mark with tunnel->parm.i_key in xfrm_input
[ Upstream commit 049f8e2e28d9c3dac0744cc2f19d3157c7fb5646 ]
This change makes it so that if a tunnel is defined we just use the mark
from the tunnel instead of the mark from the skb header. By doing this we
can avoid the need to set skb->mark inside of the tunnel receive functions.
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'net/xfrm')
| -rw-r--r-- | net/xfrm/xfrm_input.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 85d1d4764612..00977873300c 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -13,6 +13,8 @@ #include <net/dst.h> #include <net/ip.h> #include <net/xfrm.h> +#include <net/ip_tunnels.h> +#include <net/ip6_tunnel.h> static struct kmem_cache *secpath_cachep __read_mostly; @@ -186,6 +188,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) struct xfrm_state *x = NULL; xfrm_address_t *daddr; struct xfrm_mode *inner_mode; + u32 mark = skb->mark; unsigned int family; int decaps = 0; int async = 0; @@ -203,6 +206,18 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) XFRM_SPI_SKB_CB(skb)->daddroff); family = XFRM_SPI_SKB_CB(skb)->family; + /* if tunnel is present override skb->mark value with tunnel i_key */ + if (XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip4) { + switch (family) { + case AF_INET: + mark = be32_to_cpu(XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip4->parms.i_key); + break; + case AF_INET6: + mark = be32_to_cpu(XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip6->parms.i_key); + break; + } + } + /* Allocate new secpath or COW existing one. */ if (!skb->sp || atomic_read(&skb->sp->refcnt) != 1) { struct sec_path *sp; @@ -229,7 +244,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) goto drop; } - x = xfrm_state_lookup(net, skb->mark, daddr, spi, nexthdr, family); + x = xfrm_state_lookup(net, mark, daddr, spi, nexthdr, family); if (x == NULL) { XFRM_INC_STATS(net, LINUX_MIB_XFRMINNOSTATES); xfrm_audit_state_notfound(skb, family, spi, seq); |