netdev - [IPSEC]: Move all calls to xfrm_audit_state_icvfail to xfrm

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Date:	Mon, 31 Dec 2007 15:23:55 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: [IPSEC]: Move all calls to xfrm_audit_state_icvfail to xfrm_input

Hi Dave:

While refreshing the async IPsec patches I noticed some fresh code
duplication.

[IPSEC]: Move all calls to xfrm_audit_state_icvfail to xfrm_input
    
Let's nip the code duplication in the bud :)
    
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index ec8de0a..d76803a 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -179,10 +179,8 @@ static int ah_input(struct xfrm_state *x, struct sk_buff *skb)
 		err = ah_mac_digest(ahp, skb, ah->auth_data);
 		if (err)
 			goto unlock;
-		if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len)) {
-			xfrm_audit_state_icvfail(x, skb, IPPROTO_AH);
+		if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len))
 			err = -EBADMSG;
-		}
 	}
 unlock:
 	spin_unlock(&x->lock);
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index b334c76..28ea5c7 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -191,7 +191,6 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
 			BUG();
 
 		if (unlikely(memcmp(esp->auth.work_icv, sum, alen))) {
-			xfrm_audit_state_icvfail(x, skb, IPPROTO_ESP);
 			err = -EBADMSG;
 			goto unlock;
 		}
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 2d32772..fb0d07a 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -380,10 +380,8 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
 		err = ah_mac_digest(ahp, skb, ah->auth_data);
 		if (err)
 			goto unlock;
-		if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len)) {
-			xfrm_audit_state_icvfail(x, skb, IPPROTO_AH);
+		if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len))
 			err = -EBADMSG;
-		}
 	}
 unlock:
 	spin_unlock(&x->lock);
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index e10f10b..5bd5292 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -186,7 +186,6 @@ static int esp6_input(struct xfrm_state *x, struct sk_buff *skb)
 			BUG();
 
 		if (unlikely(memcmp(esp->auth.work_icv, sum, alen))) {
-			xfrm_audit_state_icvfail(x, skb, IPPROTO_ESP);
 			ret = -EBADMSG;
 			goto unlock;
 		}
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c
index 1b250f3..039e701 100644
--- a/net/xfrm/xfrm_input.c
+++ b/net/xfrm/xfrm_input.c
@@ -186,8 +186,11 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
 resume:
 		spin_lock(&x->lock);
 		if (nexthdr <= 0) {
-			if (nexthdr == -EBADMSG)
+			if (nexthdr == -EBADMSG) {
+				xfrm_audit_state_icvfail(x, skb,
+							 x->type->proto);
 				x->stats.integrity_failed++;
+			}
 			XFRM_INC_STATS(LINUX_MIB_XFRMINSTATEPROTOERROR);
 			goto drop_unlock;
 		}

Thanks,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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