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authorMasahide NAKAMURA <nakam@linux-ipv6.org>2006-08-23 17:57:28 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-09-22 15:06:36 -0700
commitaee5adb4307c4c63a4dc5f3b49984d76f8a71b5b (patch)
treeb2daac197259c535d66749617ede6f8479b355a4 /net
parenteb2971b68a7d17a7d0fa2c7fc6fbc4bfe41cd694 (diff)
downloadop-kernel-dev-aee5adb4307c4c63a4dc5f3b49984d76f8a71b5b.zip
op-kernel-dev-aee5adb4307c4c63a4dc5f3b49984d76f8a71b5b.tar.gz
[XFRM] STATE: Add a hook to find offset to be inserted header in outbound.
On current kernel, ip6_find_1stfragopt() is used by IPv6 IPsec to find offset to be inserted header in outbound for transport mode. (BTW, no usage may be needed for IPv4 case.) Mobile IPv6 requires another logic for routing header and destination options header respectively. This patch is common platform for the offset and adopts it to IPsec. Based on MIPL2 kernel patch. Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/ah6.c3
-rw-r--r--net/ipv6/esp6.c3
-rw-r--r--net/ipv6/ipcomp6.c1
-rw-r--r--net/ipv6/ipv6_syms.c1
-rw-r--r--net/ipv6/xfrm6_mode_transport.c2
-rw-r--r--net/ipv6/xfrm6_output.c6
6 files changed, 13 insertions, 3 deletions
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 60954fc..6c0aa51 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -435,7 +435,8 @@ static struct xfrm_type ah6_type =
.init_state = ah6_init_state,
.destructor = ah6_destroy,
.input = ah6_input,
- .output = ah6_output
+ .output = ah6_output,
+ .hdr_offset = xfrm6_find_1stfragopt,
};
static struct inet6_protocol ah6_protocol = {
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 2b8e52e1..ae50b95 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -379,7 +379,8 @@ static struct xfrm_type esp6_type =
.destructor = esp6_destroy,
.get_max_size = esp6_get_max_size,
.input = esp6_input,
- .output = esp6_output
+ .output = esp6_output,
+ .hdr_offset = xfrm6_find_1stfragopt,
};
static struct inet6_protocol esp6_protocol = {
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 19eba8d..ad9c6e8 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -461,6 +461,7 @@ static struct xfrm_type ipcomp6_type =
.destructor = ipcomp6_destroy,
.input = ipcomp6_input,
.output = ipcomp6_output,
+ .hdr_offset = xfrm6_find_1stfragopt,
};
static struct inet6_protocol ipcomp6_protocol =
diff --git a/net/ipv6/ipv6_syms.c b/net/ipv6/ipv6_syms.c
index dd4d1ce..e1a7416 100644
--- a/net/ipv6/ipv6_syms.c
+++ b/net/ipv6/ipv6_syms.c
@@ -31,6 +31,7 @@ EXPORT_SYMBOL(ipv6_chk_addr);
EXPORT_SYMBOL(in6_dev_finish_destroy);
#ifdef CONFIG_XFRM
EXPORT_SYMBOL(xfrm6_rcv);
+EXPORT_SYMBOL(xfrm6_find_1stfragopt);
#endif
EXPORT_SYMBOL(rt6_lookup);
EXPORT_SYMBOL(ipv6_push_nfrag_opts);
diff --git a/net/ipv6/xfrm6_mode_transport.c b/net/ipv6/xfrm6_mode_transport.c
index 711d713..a5dce21 100644
--- a/net/ipv6/xfrm6_mode_transport.c
+++ b/net/ipv6/xfrm6_mode_transport.c
@@ -35,7 +35,7 @@ static int xfrm6_transport_output(struct sk_buff *skb)
skb_push(skb, x->props.header_len);
iph = skb->nh.ipv6h;
- hdr_len = ip6_find_1stfragopt(skb, &prevhdr);
+ hdr_len = x->type->hdr_offset(x, skb, &prevhdr);
skb->nh.raw = prevhdr - x->props.header_len;
skb->h.raw = skb->data + hdr_len;
memmove(skb->data, iph, hdr_len);
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 26f1886..b4628fb 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -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;
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