GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-04-02 04:24:05 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

xfrm: add route lookup to xfrm4_rcv_encap

Browse source 
At this point, with TCP encapsulation, the dst may be gone, but
xfrm_input needs one.

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Sabrina Dubroca 2019-11-25 14:48:59 +01:00 • committed by Steffen Klassert
parent 7b3801927e
commit cac3c71604
1 changed files with 9 additions and 0 deletions

9
net/ipv4/xfrm4_protocol.c
View file

@ -72,6 +72,14 @@ int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi,
if (!head) if (!head)
goto out; goto out;
if (!skb_dst(skb)) {
const struct iphdr *iph = ip_hdr(skb);
if (ip_route_input_noref(skb, iph->daddr, iph->saddr,
iph->tos, skb->dev))
goto drop;
}
for_each_protocol_rcu(*head, handler) for_each_protocol_rcu(*head, handler)
if ((ret = handler->input_handler(skb, nexthdr, spi, encap_type)) != -EINVAL) if ((ret = handler->input_handler(skb, nexthdr, spi, encap_type)) != -EINVAL)
return ret; return ret;
@ -79,6 +87,7 @@ int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi,
out: out:
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0); icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
drop:
kfree_skb(skb); kfree_skb(skb);
return 0; return 0;
} }