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authorDavid S. Miller <davem@davemloft.net>2011-03-01 14:59:04 -0800
committerDavid S. Miller <davem@davemloft.net>2011-03-01 14:59:04 -0800
commit2774c131b1d19920b4587db1cfbd6f0750ad1f15 (patch)
tree3a0482c727cf4dcc046a211214f12459dcba8271 /net/ipv6
parent69ead7afdf6028184f713a77376ee26f8aaafdcd (diff)
downloadlinux-2774c131b1d19920b4587db1cfbd6f0750ad1f15.tar.bz2
xfrm: Handle blackhole route creation via afinfo.
That way we don't have to potentially do this in every xfrm_lookup() caller. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ip6_output.c32
-rw-r--r--net/ipv6/route.c3
-rw-r--r--net/ipv6/xfrm6_policy.c1
3 files changed, 12 insertions, 24 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index ac16f3b2a029..35a4ad90a0f5 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1025,18 +1025,12 @@ struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi *fl,
return ERR_PTR(err);
if (final_dst)
ipv6_addr_copy(&fl->fl6_dst, final_dst);
- if (can_sleep) {
+ if (can_sleep)
fl->flags |= FLOWI_FLAG_CAN_SLEEP;
- err = __xfrm_lookup(sock_net(sk), &dst, fl, sk, 0);
- if (err == -EREMOTE)
- return ip6_dst_blackhole(sock_net(sk), dst);
- if (err)
- return ERR_PTR(err);
- } else {
- err = xfrm_lookup(sock_net(sk), &dst, fl, sk, 0);
- if (err)
- return ERR_PTR(err);
- }
+
+ err = xfrm_lookup(sock_net(sk), &dst, fl, sk, 0);
+ if (err)
+ return ERR_PTR(err);
return dst;
}
EXPORT_SYMBOL_GPL(ip6_dst_lookup_flow);
@@ -1070,18 +1064,12 @@ struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi *fl,
return ERR_PTR(err);
if (final_dst)
ipv6_addr_copy(&fl->fl6_dst, final_dst);
- if (can_sleep) {
+ if (can_sleep)
fl->flags |= FLOWI_FLAG_CAN_SLEEP;
- err = __xfrm_lookup(sock_net(sk), &dst, fl, sk, 0);
- if (err == -EREMOTE)
- return ip6_dst_blackhole(sock_net(sk), dst);
- if (err)
- return ERR_PTR(err);
- } else {
- err = xfrm_lookup(sock_net(sk), &dst, fl, sk, 0);
- if (err)
- return ERR_PTR(err);
- }
+
+ err = xfrm_lookup(sock_net(sk), &dst, fl, sk, 0);
+ if (err)
+ return ERR_PTR(err);
return dst;
}
EXPORT_SYMBOL_GPL(ip6_sk_dst_lookup_flow);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index cf6fdeabb6f2..053a92ebf2d5 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -870,7 +870,7 @@ struct dst_entry * ip6_route_output(struct net *net, struct sock *sk,
EXPORT_SYMBOL(ip6_route_output);
-struct dst_entry *ip6_dst_blackhole(struct net *net, struct dst_entry *dst_orig)
+struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_orig)
{
struct rt6_info *rt = dst_alloc(&ip6_dst_blackhole_ops, 1);
struct rt6_info *ort = (struct rt6_info *) dst_orig;
@@ -907,7 +907,6 @@ struct dst_entry *ip6_dst_blackhole(struct net *net, struct dst_entry *dst_orig)
dst_release(dst_orig);
return new ? new : ERR_PTR(-ENOMEM);
}
-EXPORT_SYMBOL_GPL(ip6_dst_blackhole);
/*
* Destination cache support functions
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index c128ca1affe3..48ce496802fd 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -274,6 +274,7 @@ static struct xfrm_policy_afinfo xfrm6_policy_afinfo = {
.get_tos = xfrm6_get_tos,
.init_path = xfrm6_init_path,
.fill_dst = xfrm6_fill_dst,
+ .blackhole_route = ip6_blackhole_route,
};
static int __init xfrm6_policy_init(void)