From c9b3b81716c5b92132a6c1d4ac3c48a7b44082ab Mon Sep 17 00:00:00 2001 From: Tobias Brunner Date: Fri, 15 Mar 2024 15:35:40 +0100 Subject: ipv4: raw: Fix sending packets from raw sockets via IPsec tunnels Since the referenced commit, the xfrm_inner_extract_output() function uses the protocol field to determine the address family. So not setting it for IPv4 raw sockets meant that such packets couldn't be tunneled via IPsec anymore. IPv6 raw sockets are not affected as they already set the protocol since 9c9c9ad5fae7 ("ipv6: set skb->protocol on tcp, raw and ip6_append_data genereated skbs"). Fixes: f4796398f21b ("xfrm: Remove inner/outer modes from output path") Signed-off-by: Tobias Brunner Reviewed-by: David Ahern Reviewed-by: Nicolas Dichtel Link: https://lore.kernel.org/r/c5d9a947-eb19-4164-ac99-468ea814ce20@strongswan.org Signed-off-by: Paolo Abeni --- net/ipv4/raw.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/ipv4/raw.c') diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 12b3740393ba..dcb11f22cbf2 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -357,6 +357,7 @@ static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4, goto error; skb_reserve(skb, hlen); + skb->protocol = htons(ETH_P_IP); skb->priority = READ_ONCE(sk->sk_priority); skb->mark = sockc->mark; skb->tstamp = sockc->transmit_time; -- cgit v1.2.3-59-g8ed1b