diff options
| author | Balazs Scheidler <bazsi@balabit.hu> | 2010-10-21 12:47:34 +0200 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2010-10-21 12:47:34 +0200 |
| commit | 6006db84a91838813cdad8a6622a4e39efe9ea47 (patch) | |
| tree | 842b0a7efaf2d826c82e04ae5552e9b94c6de858 /net/netfilter/nf_tproxy_core.c | |
| parent | 106e4c26b1529e559d1aae777f11b4f8f7bafc26 (diff) | |
tproxy: add lookup type checks for UDP in nf_tproxy_get_sock_v4()
Also, inline this function as the lookup_type is always a literal
and inlining removes branches performed at runtime.
Signed-off-by: Balazs Scheidler <bazsi@balabit.hu>
Signed-off-by: KOVACS Krisztian <hidden@balabit.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'net/netfilter/nf_tproxy_core.c')
| -rw-r--r-- | net/netfilter/nf_tproxy_core.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/net/netfilter/nf_tproxy_core.c b/net/netfilter/nf_tproxy_core.c index 8589e5e08115..db655638d76d 100644 --- a/net/netfilter/nf_tproxy_core.c +++ b/net/netfilter/nf_tproxy_core.c @@ -18,54 +18,6 @@ #include <net/udp.h> #include <net/netfilter/nf_tproxy_core.h> -struct sock * -nf_tproxy_get_sock_v4(struct net *net, const u8 protocol, - const __be32 saddr, const __be32 daddr, - const __be16 sport, const __be16 dport, - const struct net_device *in, int lookup_type) -{ - struct sock *sk; - - /* look up socket */ - switch (protocol) { - case IPPROTO_TCP: - switch (lookup_type) { - case NFT_LOOKUP_ANY: - sk = __inet_lookup(net, &tcp_hashinfo, - saddr, sport, daddr, dport, - in->ifindex); - break; - case NFT_LOOKUP_LISTENER: - sk = inet_lookup_listener(net, &tcp_hashinfo, - daddr, dport, - in->ifindex); - break; - case NFT_LOOKUP_ESTABLISHED: - sk = inet_lookup_established(net, &tcp_hashinfo, - saddr, sport, daddr, dport, - in->ifindex); - break; - default: - WARN_ON(1); - sk = NULL; - break; - } - break; - case IPPROTO_UDP: - sk = udp4_lib_lookup(net, saddr, sport, daddr, dport, - in->ifindex); - break; - default: - WARN_ON(1); - sk = NULL; - } - - pr_debug("tproxy socket lookup: proto %u %08x:%u -> %08x:%u, lookup type: %d, sock %p\n", - protocol, ntohl(saddr), ntohs(sport), ntohl(daddr), ntohs(dport), lookup_type, sk); - - return sk; -} -EXPORT_SYMBOL_GPL(nf_tproxy_get_sock_v4); static void nf_tproxy_destructor(struct sk_buff *skb) |