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path: root/net/ipv4/xfrm4_mode_beet.c
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Diffstat (limited to 'net/ipv4/xfrm4_mode_beet.c')
-rw-r--r--net/ipv4/xfrm4_mode_beet.c37
1 files changed, 17 insertions, 20 deletions
diff --git a/net/ipv4/xfrm4_mode_beet.c b/net/ipv4/xfrm4_mode_beet.c
index d419e15d9803..a73e710740c2 100644
--- a/net/ipv4/xfrm4_mode_beet.c
+++ b/net/ipv4/xfrm4_mode_beet.c
@@ -29,20 +29,21 @@
*/
static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
{
- struct iphdr *iph, *top_iph = NULL;
+ struct iphdr *iph, *top_iph;
int hdrlen, optlen;
- iph = skb->nh.iph;
- skb->h.ipiph = iph;
+ iph = ip_hdr(skb);
+ skb->transport_header = skb->network_header;
hdrlen = 0;
optlen = iph->ihl * 4 - sizeof(*iph);
if (unlikely(optlen))
hdrlen += IPV4_BEET_PHMAXLEN - (optlen & 4);
- skb->nh.raw = skb_push(skb, x->props.header_len + hdrlen);
- top_iph = skb->nh.iph;
- skb->h.raw += sizeof(*iph) - hdrlen;
+ skb_push(skb, x->props.header_len - IPV4_BEET_PHMAXLEN + hdrlen);
+ skb_reset_network_header(skb);
+ top_iph = ip_hdr(skb);
+ skb->transport_header += sizeof(*iph) - hdrlen;
memmove(top_iph, iph, sizeof(*iph));
if (unlikely(optlen)) {
@@ -50,7 +51,7 @@ static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
BUG_ON(optlen < 0);
- ph = (struct ip_beet_phdr *)skb->h.raw;
+ ph = (struct ip_beet_phdr *)skb_transport_header(skb);
ph->padlen = 4 - (optlen & 4);
ph->hdrlen = optlen / 8;
ph->nexthdr = top_iph->protocol;
@@ -69,20 +70,18 @@ static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
static int xfrm4_beet_input(struct xfrm_state *x, struct sk_buff *skb)
{
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
int phlen = 0;
int optlen = 0;
- __u8 ph_nexthdr = 0, protocol = 0;
+ u8 ph_nexthdr = 0;
int err = -EINVAL;
- protocol = iph->protocol;
-
if (unlikely(iph->protocol == IPPROTO_BEETPH)) {
struct ip_beet_phdr *ph;
if (!pskb_may_pull(skb, sizeof(*ph)))
goto out;
- ph = (struct ip_beet_phdr *)(skb->h.ipiph + 1);
+ ph = (struct ip_beet_phdr *)(ipip_hdr(skb) + 1);
phlen = sizeof(*ph) + ph->padlen;
optlen = ph->hdrlen * 8 + (IPV4_BEET_PHMAXLEN - phlen);
@@ -96,22 +95,20 @@ static int xfrm4_beet_input(struct xfrm_state *x, struct sk_buff *skb)
ph_nexthdr = ph->nexthdr;
}
- skb->nh.raw = skb->data + (phlen - sizeof(*iph));
- memmove(skb->nh.raw, iph, sizeof(*iph));
- skb->h.raw = skb->data + (phlen + optlen);
- skb->data = skb->h.raw;
+ skb_set_network_header(skb, phlen - sizeof(*iph));
+ memmove(skb_network_header(skb), iph, sizeof(*iph));
+ skb_set_transport_header(skb, phlen + optlen);
+ skb->data = skb_transport_header(skb);
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
iph->ihl = (sizeof(*iph) + optlen) / 4;
iph->tot_len = htons(skb->len + iph->ihl * 4);
iph->daddr = x->sel.daddr.a4;
iph->saddr = x->sel.saddr.a4;
if (ph_nexthdr)
iph->protocol = ph_nexthdr;
- else
- iph->protocol = protocol;
iph->check = 0;
- iph->check = ip_fast_csum(skb->nh.raw, iph->ihl);
+ iph->check = ip_fast_csum(skb_network_header(skb), iph->ihl);
err = 0;
out:
return err;