[POWERPC] Make OF irq map code detect more error cases

[safe/jmp/linux-2.6] / net / ipv6 / xfrm6_input.c

diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index 1079e47..0405d74 100644 (file)
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -11,27 +11,16 @@
 
 #include <linux/module.h>
 #include <linux/string.h>
-#include <net/dsfield.h>
-#include <net/inet_ecn.h>
-#include <net/ip.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv6.h>
 #include <net/ipv6.h>
 #include <net/xfrm.h>
 
-static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
+int xfrm6_rcv_spi(struct sk_buff *skb, u32 spi)
 {
-       struct ipv6hdr *outer_iph = skb->nh.ipv6h;
-       struct ipv6hdr *inner_iph = skb->h.ipv6h;
-
-       if (INET_ECN_is_ce(ipv6_get_dsfield(outer_iph)))
-               IP6_ECN_set_ce(inner_iph);
-}
-
-int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi)
-{
-       struct sk_buff *skb = *pskb;
        int err;
        u32 seq;
-       struct sec_decap_state xfrm_vec[XFRM_MAX_DEPTH];
+       struct xfrm_state *xfrm_vec[XFRM_MAX_DEPTH];
        struct xfrm_state *x;
        int xfrm_nr = 0;
        int decaps = 0;
@@ -64,7 +53,7 @@ int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi)
                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;
 
@@ -78,23 +67,12 @@ int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi)
 
                spin_unlock(&x->lock);
 
-               xfrm_vec[xfrm_nr++].xvec = x;
+               xfrm_vec[xfrm_nr++] = x;
+
+               if (x->mode->input(x, skb))
+                       goto drop;
 
                if (x->props.mode) { /* XXX */
-                       if (nexthdr != IPPROTO_IPV6)
-                               goto drop;
-                       if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
-                               goto drop;
-                       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,
-                                              skb->mac.raw, skb->mac_len);
-                       skb->nh.raw = skb->data;
                        decaps = 1;
                        break;
                }
@@ -117,10 +95,13 @@ int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi)
        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);
@@ -129,7 +110,16 @@ int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi)
                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:
@@ -137,7 +127,7 @@ 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;
 }
@@ -146,5 +136,5 @@ EXPORT_SYMBOL(xfrm6_rcv_spi);
 
 int xfrm6_rcv(struct sk_buff **pskb)
 {
-       return xfrm6_rcv_spi(pskb, 0);
+       return xfrm6_rcv_spi(*pskb, 0);
 }