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>
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index ac16f3b..35a4ad9 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1025,18 +1025,12 @@
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 @@
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 cf6fdea..053a92e 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -870,7 +870,7 @@
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 @@
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 c128ca1..48ce496 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -274,6 +274,7 @@
.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)