diff options
| author | Xin Long <lucien.xin@gmail.com> | 2020-04-19 16:10:00 +0800 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2020-04-21 07:18:14 +0200 |
| commit | 25a44ae93d1a490f36d88a180f11aa2650bef074 (patch) | |
| tree | a1561a9fbf5b65df6842c2483db3f8b92f671c5d /net/ipv6/esp6_offload.c | |
| parent | 9f0cadc32d738f0f0c8e30be83be7087c7b85ee5 (diff) | |
esp6: support ipv6 nexthdrs process for beet gso segment
For beet mode, when it's ipv6 inner address with nexthdrs set,
the packet format might be:
----------------------------------------------------
| outer | | dest | | | ESP | ESP |
| IP6 hdr| ESP | opts.| TCP | Data | Trailer | ICV |
----------------------------------------------------
Before doing gso segment in xfrm6_beet_gso_segment(), it should
skip all nexthdrs and get the real transport proto, and set
transport_header properly.
This patch is to fix it by simply calling ipv6_skip_exthdr()
in xfrm6_beet_gso_segment().
v1->v2:
- remove skb_transport_offset(), as it will always return 0
in xfrm6_beet_gso_segment(), thank Sabrina's check.
Fixes: 7f9e40eb18a9 ("esp6: add gso_segment for esp6 beet mode")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/ipv6/esp6_offload.c')
| -rw-r--r-- | net/ipv6/esp6_offload.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/ipv6/esp6_offload.c b/net/ipv6/esp6_offload.c index b92372b104ba..9c03460b2760 100644 --- a/net/ipv6/esp6_offload.c +++ b/net/ipv6/esp6_offload.c @@ -171,7 +171,7 @@ static struct sk_buff *xfrm6_beet_gso_segment(struct xfrm_state *x, struct xfrm_offload *xo = xfrm_offload(skb); struct sk_buff *segs = ERR_PTR(-EINVAL); const struct net_offload *ops; - int proto = xo->proto; + u8 proto = xo->proto; skb->transport_header += x->props.header_len; @@ -182,7 +182,12 @@ static struct sk_buff *xfrm6_beet_gso_segment(struct xfrm_state *x, proto = ph->nexthdr; } - if (x->sel.family != AF_INET6) { + if (x->sel.family == AF_INET6) { + __be16 frag; + + skb->transport_header += + ipv6_skip_exthdr(skb, 0, &proto, &frag); + } else { skb->transport_header -= (sizeof(struct ipv6hdr) - sizeof(struct iphdr)); |