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| author |   Joe Stringer <joe@wand.net.nz> | 2018-10-15 10:27:45 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2018-10-15 16:08:39 -0700 |
| commit | 8a615c6b0352a9ec56151b6c95d68e0a2eef5cf0 (patch) | |
| tree | 5e4183735b9873f4f54c5556bf748d9775bd6d01 /net/core | |
| parent | Merge branch 'sockmap_and_ktls' (diff) | |
| download | linux-dev-8a615c6b0352a9ec56151b6c95d68e0a2eef5cf0.tar.xz linux-dev-8a615c6b0352a9ec56151b6c95d68e0a2eef5cf0.zip | |
bpf: Allow sk_lookup with IPv6 module
This is a more complete fix than d71019b54bff ("net: core: Fix build
with CONFIG_IPV6=m"), so that IPv6 sockets may be looked up if the IPv6
module is loaded (not just if it's compiled in).
Signed-off-by: Joe Stringer <joe@wand.net.nz>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/filter.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index 0f5260b04bfe..f76ba31a8cc7 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -4717,7 +4717,7 @@ static struct sock *sk_lookup(struct net *net, struct bpf_sock_tuple *tuple, sk = __udp4_lib_lookup(net, src4, tuple->ipv4.sport, dst4, tuple->ipv4.dport, dif, sdif, &udp_table, skb); -#if IS_REACHABLE(CONFIG_IPV6) +#if IS_ENABLED(CONFIG_IPV6) } else { struct in6_addr *src6 = (struct in6_addr *)&tuple->ipv6.saddr; struct in6_addr *dst6 = (struct in6_addr *)&tuple->ipv6.daddr; @@ -4728,10 +4728,12 @@ static struct sock *sk_lookup(struct net *net, struct bpf_sock_tuple *tuple, src6, tuple->ipv6.sport, dst6, tuple->ipv6.dport, dif, sdif, &refcounted); - else - sk = __udp6_lib_lookup(net, src6, tuple->ipv6.sport, - dst6, tuple->ipv6.dport, - dif, sdif, &udp_table, skb); + else if (likely(ipv6_bpf_stub)) + sk = ipv6_bpf_stub->udp6_lib_lookup(net, + src6, tuple->ipv6.sport, + dst6, tuple->ipv6.dport, + dif, sdif, + &udp_table, skb); #endif } |