From 4ecbac84b5b8c4ad033b473782582568810baf61 Mon Sep 17 00:00:00 2001 From: Mike Yu Date: Fri, 12 Jul 2024 10:51:24 +0800 Subject: xfrm: Support crypto offload for inbound IPv4 UDP-encapsulated ESP packet If xfrm_input() is called with UDP_ENCAP_ESPINUDP, the packet is already processed in UDP layer that removes the UDP header. Therefore, there should be no much difference to treat it as an ESP packet in the XFRM stack. Test: Enabled dir=in IPsec crypto offload, and verified IPv4 UDP-encapsulated ESP packets on both wifi/cellular network Signed-off-by: Mike Yu Signed-off-by: Steffen Klassert --- net/xfrm/xfrm_input.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'net/xfrm') diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index ba8deb0235ba..7cee9c0a2cdc 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -471,7 +471,8 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) struct xfrm_offload *xo = xfrm_offload(skb); struct sec_path *sp; - if (encap_type < 0 || (xo && (xo->flags & XFRM_GRO || encap_type == 0))) { + if (encap_type < 0 || (xo && (xo->flags & XFRM_GRO || encap_type == 0 || + encap_type == UDP_ENCAP_ESPINUDP))) { x = xfrm_input_state(skb); if (unlikely(x->dir && x->dir != XFRM_SA_DIR_IN)) { -- cgit v1.2.3