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| author | David S. Miller <davem@davemloft.net> | 2011-03-01 14:59:04 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-01 14:59:04 -0800 |
| commit | 2774c131b1d19920b4587db1cfbd6f0750ad1f15 (patch) | |
| tree | 3a0482c727cf4dcc046a211214f12459dcba8271 /net/ipv6 | |
| parent | 69ead7afdf6028184f713a77376ee26f8aaafdcd (diff) | |
| download | linux-2774c131b1d19920b4587db1cfbd6f0750ad1f15.tar.gz linux-2774c131b1d19920b4587db1cfbd6f0750ad1f15.tar.bz2 linux-2774c131b1d19920b4587db1cfbd6f0750ad1f15.zip | |
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.c | 32 | ||||
| -rw-r--r-- | net/ipv6/route.c | 3 | ||||
| -rw-r--r-- | net/ipv6/xfrm6_policy.c | 1 |
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) |