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Commit 7c7fedd5 authored by Tobias Brunner's avatar Tobias Brunner Committed by Steffen Klassert
Browse files

esp4: Fix integrity verification when ESN are used 



When handling inbound packets, the two halves of the sequence number
stored on the skb are already in network order.

Fixes: 7021b2e1 ("esp4: Switch to new AEAD interface")
Signed-off-by: default avatarTobias Brunner <tobias@strongswan.org>
Acked-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
parent 83e2d058

net/ipv4/esp4.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -476,7 +476,7 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb) 
		esph = (void *)skb_push(skb, 4);

		esph = (void *)skb_push(skb, 4);

		*seqhi = esph->spi;

		*seqhi = esph->spi;

		esph->spi = esph->seq_no;

		esph->spi = esph->seq_no;

		esph->seq_no = htonl(XFRM_SKB_CB(skb)->seq.input.hi);

		esph->seq_no = XFRM_SKB_CB(skb)->seq.input.hi;

		aead_request_set_callback(req, 0, esp_input_done_esn, skb);

		aead_request_set_callback(req, 0, esp_input_done_esn, skb);

	}

	}