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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-03-10 12:40:27 -0300
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:24:37 -0700
commit39f69c6f922fbfb51e1ff24c9e196584a79f1484 (patch)
tree2d68a730ba5b89f895c28489872a1eea3b37db5a /net
parent48d49d0ccdaa9caff4636ef9c3410973d28131b5 (diff)
[SK_BUFF] xfrm: Use skb_set_mac_header in the memmove cases
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/xfrm4_mode_tunnel.c6
-rw-r--r--net/ipv6/xfrm6_mode_beet.c6
-rw-r--r--net/ipv6/xfrm6_mode_tunnel.c6
3 files changed, 12 insertions, 6 deletions
diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
index 4872b30ba5d..f09055d3a76 100644
--- a/net/ipv4/xfrm4_mode_tunnel.c
+++ b/net/ipv4/xfrm4_mode_tunnel.c
@@ -91,6 +91,7 @@ static int xfrm4_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
static int xfrm4_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
{
struct iphdr *iph = skb->nh.iph;
+ const unsigned char *old_mac;
int err = -EINVAL;
switch (iph->protocol){
@@ -125,8 +126,9 @@ static int xfrm4_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
skb->protocol = htons(ETH_P_IPV6);
}
#endif
- skb->mac.raw = memmove(skb->data - skb->mac_len,
- skb->mac.raw, skb->mac_len);
+ old_mac = skb->mac.raw;
+ skb_set_mac_header(skb, -skb->mac_len);
+ memmove(skb->mac.raw, old_mac, skb->mac_len);
skb->nh.raw = skb->data;
err = 0;
diff --git a/net/ipv6/xfrm6_mode_beet.c b/net/ipv6/xfrm6_mode_beet.c
index edcfffa9e87..53cfe1a10cc 100644
--- a/net/ipv6/xfrm6_mode_beet.c
+++ b/net/ipv6/xfrm6_mode_beet.c
@@ -59,6 +59,7 @@ static int xfrm6_beet_output(struct xfrm_state *x, struct sk_buff *skb)
static int xfrm6_beet_input(struct xfrm_state *x, struct sk_buff *skb)
{
struct ipv6hdr *ip6h;
+ const unsigned char *old_mac;
int size = sizeof(struct ipv6hdr);
int err = -EINVAL;
@@ -69,8 +70,9 @@ static int xfrm6_beet_input(struct xfrm_state *x, struct sk_buff *skb)
memmove(skb->data, skb->nh.raw, size);
skb->nh.raw = skb->data;
- skb->mac.raw = memmove(skb->data - skb->mac_len,
- skb->mac.raw, skb->mac_len);
+ old_mac = skb->mac.raw;
+ skb_set_mac_header(skb, -skb->mac_len);
+ memmove(skb->mac.raw, old_mac, skb->mac_len);
ip6h = skb->nh.ipv6h;
ip6h->payload_len = htons(skb->len - size);
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index 0bc866c0d83..d2c560c181a 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -86,6 +86,7 @@ static int xfrm6_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
{
int err = -EINVAL;
+ const unsigned char *old_mac;
if (skb->nh.raw[IP6CB(skb)->nhoff] != IPPROTO_IPV6
&& skb->nh.raw[IP6CB(skb)->nhoff] != IPPROTO_IPIP)
@@ -107,8 +108,9 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
ip6ip_ecn_decapsulate(skb);
skb->protocol = htons(ETH_P_IP);
}
- skb->mac.raw = memmove(skb->data - skb->mac_len,
- skb->mac.raw, skb->mac_len);
+ old_mac = skb->mac.raw;
+ skb_set_mac_header(skb, -skb->mac_len);
+ memmove(skb->mac.raw, old_mac, skb->mac_len);
skb->nh.raw = skb->data;
err = 0;