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| author |   Jakub Kicinski <kuba@kernel.org> | 2022-01-09 16:59:30 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-01-09 17:00:17 -0800 |
| commit | 8aaaf2f3af2ae212428f4db1af34214225f5cec3 (patch) | |
| tree | 43c7f4f8af2fad7919f169b0924dba5e43147d97 /net/xfrm/xfrm_policy.c | |
| parent | tcp: tcp_send_challenge_ack delete useless param `skb` (diff) | |
| parent | amt: fix wrong return type of amt_send_membership_update() (diff) | |
| download | linux-dev-8aaaf2f3af2ae212428f4db1af34214225f5cec3.tar.xz linux-dev-8aaaf2f3af2ae212428f4db1af34214225f5cec3.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Merge in fixes directly in prep for the 5.17 merge window.
No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/xfrm/xfrm_policy.c')
| -rw-r--r-- | net/xfrm/xfrm_policy.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 9341298b2a70..dccb8f3318ef 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -33,6 +33,7 @@ #include <net/flow.h> #include <net/xfrm.h> #include <net/ip.h> +#include <net/gre.h> #if IS_ENABLED(CONFIG_IPV6_MIP6) #include <net/mip6.h> #endif @@ -3421,6 +3422,26 @@ decode_session6(struct sk_buff *skb, struct flowi *fl, bool reverse) } fl6->flowi6_proto = nexthdr; return; + case IPPROTO_GRE: + if (!onlyproto && + (nh + offset + 12 < skb->data || + pskb_may_pull(skb, nh + offset + 12 - skb->data))) { + struct gre_base_hdr *gre_hdr; + __be32 *gre_key; + + nh = skb_network_header(skb); + gre_hdr = (struct gre_base_hdr *)(nh + offset); + gre_key = (__be32 *)(gre_hdr + 1); + + if (gre_hdr->flags & GRE_KEY) { + if (gre_hdr->flags & GRE_CSUM) + gre_key++; + fl6->fl6_gre_key = *gre_key; + } + } + fl6->flowi6_proto = nexthdr; + return; + #if IS_ENABLED(CONFIG_IPV6_MIP6) case IPPROTO_MH: offset += ipv6_optlen(exthdr); |