* IPv6 support
*/
+#include <linux/module.h>
#include <linux/string.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv6.h>
+#include <net/dsfield.h>
#include <net/inet_ecn.h>
#include <net/ip.h>
#include <net/ipv6.h>
struct ipv6hdr *outer_iph = skb->nh.ipv6h;
struct ipv6hdr *inner_iph = skb->h.ipv6h;
- if (INET_ECN_is_ce(ip6_get_dsfield(outer_iph)) &&
- INET_ECN_is_not_ce(ip6_get_dsfield(inner_iph)))
+ if (INET_ECN_is_ce(ipv6_get_dsfield(outer_iph)))
IP6_ECN_set_ce(inner_iph);
}
-int xfrm6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
+int xfrm6_rcv_spi(struct sk_buff *skb, u32 spi)
{
- struct sk_buff *skb = *pskb;
int err;
- u32 spi, seq;
- struct sec_decap_state xfrm_vec[XFRM_MAX_DEPTH];
+ u32 seq;
+ struct xfrm_state *xfrm_vec[XFRM_MAX_DEPTH];
struct xfrm_state *x;
int xfrm_nr = 0;
int decaps = 0;
int nexthdr;
unsigned int nhoff;
- nhoff = *nhoffp;
+ nhoff = IP6CB(skb)->nhoff;
nexthdr = skb->nh.raw[nhoff];
- if ((err = xfrm_parse_spi(skb, nexthdr, &spi, &seq)) != 0)
+ seq = 0;
+ if (!spi && (err = xfrm_parse_spi(skb, nexthdr, &spi, &seq)) != 0)
goto drop;
do {
if (xfrm_state_check_expire(x))
goto drop_unlock;
- nexthdr = x->type->input(x, &(xfrm_vec[xfrm_nr].decap), skb);
+ nexthdr = x->type->input(x, skb);
if (nexthdr <= 0)
goto drop_unlock;
spin_unlock(&x->lock);
- xfrm_vec[xfrm_nr++].xvec = x;
+ xfrm_vec[xfrm_nr++] = x;
if (x->props.mode) { /* XXX */
if (nexthdr != IPPROTO_IPV6)
if (skb_cloned(skb) &&
pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
goto drop;
+ if (x->props.flags & XFRM_STATE_DECAP_DSCP)
+ ipv6_copy_dscp(skb->nh.ipv6h, skb->h.ipv6h);
if (!(x->props.flags & XFRM_STATE_NOECN))
ipip6_ecn_decapsulate(skb);
skb->mac.raw = memmove(skb->data - skb->mac_len,
if (xfrm_nr + skb->sp->len > XFRM_MAX_DEPTH)
goto drop;
- memcpy(skb->sp->x+skb->sp->len, xfrm_vec, xfrm_nr*sizeof(struct sec_decap_state));
+ memcpy(skb->sp->xvec + skb->sp->len, xfrm_vec,
+ xfrm_nr * sizeof(xfrm_vec[0]));
skb->sp->len += xfrm_nr;
skb->ip_summed = CHECKSUM_NONE;
+ nf_reset(skb);
+
if (decaps) {
if (!(skb->dev->flags&IFF_LOOPBACK)) {
dst_release(skb->dst);
netif_rx(skb);
return -1;
} else {
+#ifdef CONFIG_NETFILTER
+ skb->nh.ipv6h->payload_len = htons(skb->len);
+ __skb_push(skb, skb->data - skb->nh.raw);
+
+ NF_HOOK(PF_INET6, NF_IP6_PRE_ROUTING, skb, skb->dev, NULL,
+ ip6_rcv_finish);
+ return -1;
+#else
return 1;
+#endif
}
drop_unlock:
xfrm_state_put(x);
drop:
while (--xfrm_nr >= 0)
- xfrm_state_put(xfrm_vec[xfrm_nr].xvec);
+ xfrm_state_put(xfrm_vec[xfrm_nr]);
kfree_skb(skb);
return -1;
}
+
+EXPORT_SYMBOL(xfrm6_rcv_spi);
+
+int xfrm6_rcv(struct sk_buff **pskb)
+{
+ return xfrm6_rcv_spi(*pskb, 0);
+}