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ipv6: udp: Use ip6_sk_redirect() for tunnel sockets

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After commit cd51b74bdd ("ipv6: Fix redirect exception creation for
UDP/RAW sockets") the two redirect calls are now equivalent and there is
no need to specifically call ip6_redirect() for tunnel sockets. Simplify
and call ip6_sk_redirect() for both tunnel sockets and regular sockets.

Note that for ICMPv6 Redirect Message packets the VRF driver does not
reset skb->dev to the VRF device, so skb->dev->ifindex is equivalent to
inet6_iif(skb), even when the packet was received from a VRF port.

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260907101358.596953-1-idosch@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Ido Schimmel 2026-09-07 13:13:58 +03:00 committed by Paolo Abeni
parent 1773727507
commit 4596be8a15
1 changed files with 1 additions and 7 deletions
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8
net/ipv6/udp.c
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@ -751,13 +751,7 @@ static int udpv6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
harderr = 1;
}
if (type == NDISC_REDIRECT) {
if (tunnel) {
ip6_redirect(skb, sock_net(sk), inet6_iif(skb),
READ_ONCE(sk->sk_mark),
sk_uid(sk));
} else {
ip6_sk_redirect(skb, sk);
}
ip6_sk_redirect(skb, sk);
goto out;
}