diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-10-18 04:35:51 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-10-18 04:35:51 (GMT) |
| commit | 13996378e6585fb25e582afe7489bf52dde78deb (patch) | |
| tree | 4a1eb75c81a5a9d23c68f9818259f3b357dc8265 /net/ipv4 | |
| parent | ca68145f16359f71cd62b2671aa3e8c58f45ef19 (diff) | |
| download | linux-13996378e6585fb25e582afe7489bf52dde78deb.tar.xz | |
[IPSEC]: Rename mode to outer_mode and add inner_mode
This patch adds a new field to xfrm states called inner_mode. The existing
mode object is renamed to outer_mode.
This is the first part of an attempt to fix inter-family transforms. As it
is we always use the outer family when determining which mode to use. As a
result we may end up shoving IPv4 packets into netfilter6 and vice versa.
What we really want is to use the inner family for the first part of outbound
processing and the outer family for the second part. For inbound processing
we'd use the opposite pairing.
I've also added a check to prevent silly combinations such as transport mode
with inter-family transforms.
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_input.c | 4 | ||||
| -rw-r--r-- | net/ipv4/xfrm4_output.c | 2 | ||||
| -rw-r--r-- | net/ipv4/xfrm4_policy.c | 2 |
3 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c index bc5dc07..5e95c8a 100644 --- a/net/ipv4/xfrm4_input.c +++ b/net/ipv4/xfrm4_input.c @@ -91,10 +91,10 @@ int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi, xfrm_vec[xfrm_nr++] = x; - if (x->mode->input(x, skb)) + if (x->outer_mode->input(x, skb)) goto drop; - if (x->mode->flags & XFRM_MODE_FLAG_TUNNEL) { + if (x->outer_mode->flags & XFRM_MODE_FLAG_TUNNEL) { decaps = 1; break; } diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c index dcbc274..c4a7156 100644 --- a/net/ipv4/xfrm4_output.c +++ b/net/ipv4/xfrm4_output.c @@ -47,7 +47,7 @@ static inline int xfrm4_output_one(struct sk_buff *skb) struct iphdr *iph; int err; - if (x->mode->flags & XFRM_MODE_FLAG_TUNNEL) { + if (x->outer_mode->flags & XFRM_MODE_FLAG_TUNNEL) { err = xfrm4_tunnel_check_size(skb); if (err) goto error_nolock; diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c index 1f0ea0e..cc86fb1 100644 --- a/net/ipv4/xfrm4_policy.c +++ b/net/ipv4/xfrm4_policy.c @@ -168,7 +168,7 @@ __xfrm4_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int /* Copy neighbout for reachability confirmation */ dst_prev->neighbour = neigh_clone(rt->u.dst.neighbour); dst_prev->input = rt->u.dst.input; - dst_prev->output = dst_prev->xfrm->mode->afinfo->output; + dst_prev->output = dst_prev->xfrm->outer_mode->afinfo->output; if (rt0->peer) atomic_inc(&rt0->peer->refcnt); x->u.rt.peer = rt0->peer; |