Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

[linux-drm-fsl-dcu.git] / net / ipv6 / xfrm6_output.c

diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 16e84254a252e60daeb29821acc12429fd66520b..d6d786b89d2bb5e9ec529fec0ac1888f5ea83e31 100644 (file)
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -2,7 +2,7 @@
  * xfrm6_output.c - Common IPsec encapsulation code for IPv6.
  * Copyright (C) 2002 USAGI/WIDE Project
  * Copyright (c) 2004 Herbert Xu <herbert@gondor.apana.org.au>
- * 
+ *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version
@@ -17,6 +17,12 @@
 #include <net/ipv6.h>
 #include <net/xfrm.h>
 
+int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb,
+                         u8 **prevhdr)
+{
+       return ip6_find_1stfragopt(skb, prevhdr);
+}
+
 static int xfrm6_tunnel_check_size(struct sk_buff *skb)
 {
        int mtu, ret = 0;
@@ -40,14 +46,14 @@ static int xfrm6_output_one(struct sk_buff *skb)
        struct dst_entry *dst = skb->dst;
        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;
@@ -59,7 +65,7 @@ static int xfrm6_output_one(struct sk_buff *skb)
                if (err)
                        goto error;
 
-               err = x->mode->output(skb);
+               err = x->mode->output(x, skb);
                if (err)
                        goto error;
 
@@ -69,18 +75,20 @@ 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);
 
                skb->nh.raw = skb->data;
-               
+
                if (!(skb->dst = dst_pop(dst))) {
                        err = -EHOSTUNREACH;
                        goto error_nolock;
                }
                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;
@@ -94,13 +102,13 @@ error_nolock:
        goto out_exit;
 }
 
-static int xfrm6_output_finish(struct sk_buff *skb)
+static int xfrm6_output_finish2(struct sk_buff *skb)
 {
        int err;
 
        while (likely((err = xfrm6_output_one(skb)) == 0)) {
                nf_reset(skb);
-       
+
                err = nf_hook(PF_INET6, NF_IP6_LOCAL_OUT, &skb, NULL,
                              skb->dst->dev, dst_output);
                if (unlikely(err != 1))
@@ -110,7 +118,7 @@ static int xfrm6_output_finish(struct sk_buff *skb)
                        return dst_output(skb);
 
                err = nf_hook(PF_INET6, NF_IP6_POST_ROUTING, &skb, NULL,
-                             skb->dst->dev, xfrm6_output_finish);
+                             skb->dst->dev, xfrm6_output_finish2);
                if (unlikely(err != 1))
                        break;
        }
@@ -118,6 +126,41 @@ static int xfrm6_output_finish(struct sk_buff *skb)
        return err;
 }
 
+static int xfrm6_output_finish(struct sk_buff *skb)
+{
+       struct sk_buff *segs;
+
+       if (!skb_is_gso(skb))
+               return xfrm6_output_finish2(skb);
+
+       skb->protocol = htons(ETH_P_IPV6);
+       segs = skb_gso_segment(skb, 0);
+       kfree_skb(skb);
+       if (unlikely(IS_ERR(segs)))
+               return PTR_ERR(segs);
+
+       do {
+               struct sk_buff *nskb = segs->next;
+               int err;
+
+               segs->next = NULL;
+               err = xfrm6_output_finish2(segs);
+
+               if (unlikely(err)) {
+                       while ((segs = nskb)) {
+                               nskb = segs->next;
+                               segs->next = NULL;
+                               kfree_skb(segs);
+                       }
+                       return err;
+               }
+
+               segs = nskb;
+       } while (segs);
+
+       return 0;
+}
+
 int xfrm6_output(struct sk_buff *skb)
 {
        return NF_HOOK(PF_INET6, NF_IP6_POST_ROUTING, skb, NULL, skb->dst->dev,