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authorHerbert Xu <herbert@gondor.apana.org.au>2007-10-08 17:16:30 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 16:54:53 -0700
commit406ef77c893ebd882209be4e393d64b01fe72054 (patch)
tree815d753889769b355fba7e648abef7ad1422559e /net/ipv4
parent[IPSEC] ah: Remove keys from ah_data structure (diff)
downloadlinux-dev-406ef77c893ebd882209be4e393d64b01fe72054.tar.xz
linux-dev-406ef77c893ebd882209be4e393d64b01fe72054.zip
[IPSEC]: Move common output code to xfrm_output
Most of the code in xfrm4_output_one and xfrm6_output_one are identical so this patch moves them into a common xfrm_output function which will live in net/xfrm. In fact this would seem to fix a bug as on IPv4 we never reset the network header after a transform which may upset netfilter later on. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/xfrm4_output.c40
1 files changed, 4 insertions, 36 deletions
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index 44ef208a75cb..04805c7d79c3 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -12,7 +12,6 @@
#include <linux/if_ether.h>
#include <linux/kernel.h>
#include <linux/skbuff.h>
-#include <linux/spinlock.h>
#include <linux/netfilter_ipv4.h>
#include <net/ip.h>
#include <net/xfrm.h>
@@ -41,58 +40,27 @@ out:
return ret;
}
-static int xfrm4_output_one(struct sk_buff *skb)
+static inline int xfrm4_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_PARTIAL) {
- err = skb_checksum_help(skb);
- if (err)
- goto error_nolock;
- }
-
if (x->props.mode == XFRM_MODE_TUNNEL) {
err = xfrm4_tunnel_check_size(skb);
if (err)
goto error_nolock;
}
- do {
- spin_lock_bh(&x->lock);
- err = xfrm_state_check(x, skb);
- if (err)
- goto error;
-
- err = x->mode->output(x, skb);
- if (err)
- goto error;
-
- err = x->type->output(x, skb);
- if (err)
- goto error;
-
- x->curlft.bytes += skb->len;
- x->curlft.packets++;
-
- spin_unlock_bh(&x->lock);
-
- if (!(skb->dst = dst_pop(dst))) {
- err = -EHOSTUNREACH;
- goto error_nolock;
- }
- dst = skb->dst;
- x = dst->xfrm;
- } while (x && (x->props.mode != XFRM_MODE_TUNNEL));
+ err = xfrm_output(skb);
+ if (err)
+ goto error_nolock;
IPCB(skb)->flags |= IPSKB_XFRM_TRANSFORMED;
err = 0;
out_exit:
return err;
-error:
- spin_unlock_bh(&x->lock);
error_nolock:
kfree_skb(skb);
goto out_exit;