Linux-libre 4.8.2-gnupck-4.8.2-gnu

4 files changed, 17 insertions, 14 deletions

diff --git a/net/ipv6/ila/ila.h b/net/ipv6/ila/ila.h
index d08fd2d48..e0170f62b 100644
--- a/net/ipv6/ila/ila.h
+++ b/net/ipv6/ila/ila.h
@@ -109,7 +109,8 @@ static inline bool ila_csum_neutral_set(struct ila_identifier ident)
 	return !!(ident.csum_neutral);
 }
 
-void ila_update_ipv6_locator(struct sk_buff *skb, struct ila_params *p);
+void ila_update_ipv6_locator(struct sk_buff *skb, struct ila_params *p,
+			     bool set_csum_neutral);
 
 void ila_init_saved_csum(struct ila_params *p);
 
diff --git a/net/ipv6/ila/ila_common.c b/net/ipv6/ila/ila_common.c
index 0e94042d1..ec9efbcda 100644
--- a/net/ipv6/ila/ila_common.c
+++ b/net/ipv6/ila/ila_common.c
@@ -34,12 +34,12 @@ static void ila_csum_do_neutral(struct ila_addr *iaddr,
 	if (p->locator_match.v64) {
 		diff = p->csum_diff;
 	} else {
-		diff = compute_csum_diff8((__be32 *)iaddr,
-					  (__be32 *)&p->locator);
+		diff = compute_csum_diff8((__be32 *)&p->locator,
+					  (__be32 *)iaddr);
 	}
 
 	fval = (__force __wsum)(ila_csum_neutral_set(iaddr->ident) ?
-			~CSUM_NEUTRAL_FLAG : CSUM_NEUTRAL_FLAG);
+			CSUM_NEUTRAL_FLAG : ~CSUM_NEUTRAL_FLAG);
 
 	diff = csum_add(diff, fval);
 
@@ -103,7 +103,8 @@ static void ila_csum_adjust_transport(struct sk_buff *skb,
 	iaddr->loc = p->locator;
 }
 
-void ila_update_ipv6_locator(struct sk_buff *skb, struct ila_params *p)
+void ila_update_ipv6_locator(struct sk_buff *skb, struct ila_params *p,
+			     bool set_csum_neutral)
 {
 	struct ipv6hdr *ip6h = ipv6_hdr(skb);
 	struct ila_addr *iaddr = ila_a2i(&ip6h->daddr);
@@ -114,7 +115,8 @@ void ila_update_ipv6_locator(struct sk_buff *skb, struct ila_params *p)
 		 * is a locator being translated to a SIR address.
 		 * Perform (receiver) checksum-neutral translation.
 		 */
-		ila_csum_do_neutral(iaddr, p);
+		if (!set_csum_neutral)
+			ila_csum_do_neutral(iaddr, p);
 	} else {
 		switch (p->csum_mode) {
 		case ILA_CSUM_ADJUST_TRANSPORT:
@@ -138,8 +140,8 @@ void ila_init_saved_csum(struct ila_params *p)
 		return;
 
 	p->csum_diff = compute_csum_diff8(
-				(__be32 *)&p->locator_match,
-				(__be32 *)&p->locator);
+				(__be32 *)&p->locator,
+				(__be32 *)&p->locator_match);
 }
 
 static int __init ila_init(void)
diff --git a/net/ipv6/ila/ila_lwt.c b/net/ipv6/ila/ila_lwt.c
index 1dfb64166..c8314c6b6 100644
--- a/net/ipv6/ila/ila_lwt.c
+++ b/net/ipv6/ila/ila_lwt.c
@@ -26,7 +26,7 @@ static int ila_output(struct net *net, struct sock *sk, struct sk_buff *skb)
 	if (skb->protocol != htons(ETH_P_IPV6))
 		goto drop;
 
-	ila_update_ipv6_locator(skb, ila_params_lwtunnel(dst->lwtstate));
+	ila_update_ipv6_locator(skb, ila_params_lwtunnel(dst->lwtstate), true);
 
 	return dst->lwtstate->orig_output(net, sk, skb);
 
@@ -42,7 +42,7 @@ static int ila_input(struct sk_buff *skb)
 	if (skb->protocol != htons(ETH_P_IPV6))
 		goto drop;
 
-	ila_update_ipv6_locator(skb, ila_params_lwtunnel(dst->lwtstate));
+	ila_update_ipv6_locator(skb, ila_params_lwtunnel(dst->lwtstate), false);
 
 	return dst->lwtstate->orig_input(skb);
 
diff --git a/net/ipv6/ila/ila_xlat.c b/net/ipv6/ila/ila_xlat.c
index a90e57229..e6eca5fdf 100644
--- a/net/ipv6/ila/ila_xlat.c
+++ b/net/ipv6/ila/ila_xlat.c
@@ -210,14 +210,14 @@ static void ila_free_cb(void *ptr, void *arg)
 	}
 }
 
-static int ila_xlat_addr(struct sk_buff *skb);
+static int ila_xlat_addr(struct sk_buff *skb, bool set_csum_neutral);
 
 static unsigned int
 ila_nf_input(void *priv,
 	     struct sk_buff *skb,
 	     const struct nf_hook_state *state)
 {
-	ila_xlat_addr(skb);
+	ila_xlat_addr(skb, false);
 	return NF_ACCEPT;
 }
 
@@ -597,7 +597,7 @@ static struct pernet_operations ila_net_ops = {
 	.size = sizeof(struct ila_net),
 };
 
-static int ila_xlat_addr(struct sk_buff *skb)
+static int ila_xlat_addr(struct sk_buff *skb, bool set_csum_neutral)
 {
 	struct ila_map *ila;
 	struct ipv6hdr *ip6h = ipv6_hdr(skb);
@@ -616,7 +616,7 @@ static int ila_xlat_addr(struct sk_buff *skb)
 
 	ila = ila_lookup_wildcards(iaddr, skb->dev->ifindex, ilan);
 	if (ila)
-		ila_update_ipv6_locator(skb, &ila->xp.ip);
+		ila_update_ipv6_locator(skb, &ila->xp.ip, set_csum_neutral);
 
 	rcu_read_unlock();