diff options
| author | Julien Massonneau <julien.massonneau@6wind.com> | 2021-03-11 16:53:18 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-11 16:09:21 -0800 |
| commit | ee90c6ba341f7f72858196f15912c8b6b7d032e8 (patch) | |
| tree | 563afd664c62fedd293ca11bbdc6e0216be48c94 /net/ipv6/exthdrs.c | |
| parent | 6c6095214a6c3d822d9b2561eccf8ee52e91107b (diff) | |
| download | linux-ee90c6ba341f7f72858196f15912c8b6b7d032e8.tar.gz | |
seg6: add support for IPv4 decapsulation in ipv6_srh_rcv()
As specified in IETF RFC 8754, section 4.3.1.2, if the upper layer
header is IPv4 or IPv6, perform IPv6 decapsulation and resubmit the
decapsulated packet to the IPv4 or IPv6 module.
Only IPv6 decapsulation was implemented. This patch adds support for IPv4
decapsulation.
Link: https://tools.ietf.org/html/rfc8754#section-4.3.1.2
Signed-off-by: Julien Massonneau <julien.massonneau@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/exthdrs.c')
| -rw-r--r-- | net/ipv6/exthdrs.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index 6126f8bf94b39..56e479d158b7c 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -381,7 +381,7 @@ static int ipv6_srh_rcv(struct sk_buff *skb) looped_back: if (hdr->segments_left == 0) { - if (hdr->nexthdr == NEXTHDR_IPV6) { + if (hdr->nexthdr == NEXTHDR_IPV6 || hdr->nexthdr == NEXTHDR_IPV4) { int offset = (hdr->hdrlen + 1) << 3; skb_postpull_rcsum(skb, skb_network_header(skb), @@ -397,7 +397,8 @@ looped_back: skb_reset_network_header(skb); skb_reset_transport_header(skb); skb->encapsulation = 0; - + if (hdr->nexthdr == NEXTHDR_IPV4) + skb->protocol = htons(ETH_P_IP); __skb_tunnel_rx(skb, skb->dev, net); netif_rx(skb); |