#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/skbuff.h>
+#include <linux/spinlock.h>
#include <linux/stringify.h>
+#include <linux/time.h>
#include <net/ipv6.h>
#include <net/xfrm.h>
*
* The IP header and mutable extension headers will be moved forward to make
* space for the route optimization header.
- *
- * On exit, skb->h will be set to the start of the encapsulation header to be
- * filled in by x->type->output and skb->nh will be set to the nextheader field
- * of the extension header directly preceding the encapsulation header, or in
- * its absence, that of the top IP header. The value of skb->data will always
- * point to the top IP header.
*/
static int xfrm6_ro_output(struct xfrm_state *x, struct sk_buff *skb)
{
u8 *prevhdr;
int hdr_len;
- skb_push(skb, x->props.header_len);
iph = ipv6_hdr(skb);
hdr_len = x->type->hdr_offset(x, skb, &prevhdr);
- skb_set_network_header(skb,
- (prevhdr - x->props.header_len) - skb->data);
- skb_set_transport_header(skb, hdr_len);
- memmove(skb->data, iph, hdr_len);
- return 0;
-}
+ skb_set_mac_header(skb, (prevhdr - x->props.header_len) - skb->data);
+ skb_set_network_header(skb, -x->props.header_len);
+ skb->transport_header = skb->network_header + hdr_len;
+ __skb_pull(skb, hdr_len);
+ memmove(ipv6_hdr(skb), iph, hdr_len);
+
+ x->lastused = get_seconds();
-/*
- * Do nothing about routing optimization header unlike IPsec.
- */
-static int xfrm6_ro_input(struct xfrm_state *x, struct sk_buff *skb)
-{
return 0;
}
static struct xfrm_mode xfrm6_ro_mode = {
- .input = xfrm6_ro_input,
.output = xfrm6_ro_output,
.owner = THIS_MODULE,
.encap = XFRM_MODE_ROUTEOPTIMIZATION,