fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / net / ipv6 / xfrm6_output.c

diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index e9ea338..c260ea1 100644 (file)
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -14,66 +14,13 @@
 #include <linux/spinlock.h>
 #include <linux/icmpv6.h>
 #include <linux/netfilter_ipv6.h>
-#include <net/dsfield.h>
-#include <net/inet_ecn.h>
 #include <net/ipv6.h>
 #include <net/xfrm.h>
 
-/* Add encapsulation header.
- *
- * In transport mode, the IP header and mutable extension headers will be moved
- * forward to make space for the encapsulation header.
- *
- * In tunnel mode, the top IP header will be constructed per RFC 2401.
- * The following fields in it shall be filled in by x->type->output:
- *     payload_len
- *
- * 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 void xfrm6_encap(struct sk_buff *skb)
+int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb,
+                         u8 **prevhdr)
 {
-       struct dst_entry *dst = skb->dst;
-       struct xfrm_state *x = dst->xfrm;
-       struct ipv6hdr *iph, *top_iph;
-       int dsfield;
-
-       skb_push(skb, x->props.header_len);
-       iph = skb->nh.ipv6h;
-
-       if (!x->props.mode) {
-               u8 *prevhdr;
-               int hdr_len;
-
-               hdr_len = ip6_find_1stfragopt(skb, &prevhdr);
-               skb->nh.raw = prevhdr - x->props.header_len;
-               skb->h.raw = skb->data + hdr_len;
-               memmove(skb->data, iph, hdr_len);
-               return;
-       }
-
-       skb->nh.raw = skb->data;
-       top_iph = skb->nh.ipv6h;
-       skb->nh.raw = &top_iph->nexthdr;
-       skb->h.ipv6h = top_iph + 1;
-
-       top_iph->version = 6;
-       top_iph->priority = iph->priority;
-       top_iph->flow_lbl[0] = iph->flow_lbl[0];
-       top_iph->flow_lbl[1] = iph->flow_lbl[1];
-       top_iph->flow_lbl[2] = iph->flow_lbl[2];
-       dsfield = ipv6_get_dsfield(top_iph);
-       dsfield = INET_ECN_encapsulate(dsfield, dsfield);
-       if (x->props.flags & XFRM_STATE_NOECN)
-               dsfield &= ~INET_ECN_MASK;
-       ipv6_change_dsfield(top_iph, 0, dsfield);
-       top_iph->nexthdr = IPPROTO_IPV6; 
-       top_iph->hop_limit = dst_metric(dst->child, RTAX_HOPLIMIT);
-       ipv6_addr_copy(&top_iph->saddr, (struct in6_addr *)&x->props.saddr);
-       ipv6_addr_copy(&top_iph->daddr, (struct in6_addr *)&x->id.daddr);
+       return ip6_find_1stfragopt(skb, prevhdr);
 }
 
 static int xfrm6_tunnel_check_size(struct sk_buff *skb)
@@ -100,13 +47,13 @@ static int xfrm6_output_one(struct sk_buff *skb)
        struct xfrm_state *x = dst->xfrm;
        int err;
        
-       if (skb->ip_summed == CHECKSUM_HW) {
-               err = skb_checksum_help(skb, 0);
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
+               err = skb_checksum_help(skb);
                if (err)
                        goto error_nolock;
        }
 
-       if (x->props.mode) {
+       if (x->props.mode == XFRM_MODE_TUNNEL) {
                err = xfrm6_tunnel_check_size(skb);
                if (err)
                        goto error_nolock;
@@ -118,7 +65,9 @@ static int xfrm6_output_one(struct sk_buff *skb)
                if (err)
                        goto error;
 
-               xfrm6_encap(skb);
+               err = x->mode->output(x, skb);
+               if (err)
+                       goto error;
 
                err = x->type->output(x, skb);
                if (err)
@@ -126,6 +75,8 @@ static int xfrm6_output_one(struct sk_buff *skb)
 
                x->curlft.bytes += skb->len;
                x->curlft.packets++;
+               if (x->props.mode == XFRM_MODE_ROUTEOPTIMIZATION)
+                       x->lastused = (u64)xtime.tv_sec;
 
                spin_unlock_bh(&x->lock);
 
@@ -137,7 +88,7 @@ static int xfrm6_output_one(struct sk_buff *skb)
                }
                dst = skb->dst;
                x = dst->xfrm;
-       } while (x && !x->props.mode);
+       } while (x && (x->props.mode != XFRM_MODE_TUNNEL));
 
        IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
        err = 0;
@@ -182,7 +133,7 @@ static int xfrm6_output_finish(struct sk_buff *skb)
        if (!skb_is_gso(skb))
                return xfrm6_output_finish2(skb);
 
-       skb->protocol = htons(ETH_P_IP);
+       skb->protocol = htons(ETH_P_IPV6);
        segs = skb_gso_segment(skb, 0);
        kfree_skb(skb);
        if (unlikely(IS_ERR(segs)))