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authorDavid S. Miller <davem@davemloft.net>2013-02-05 14:42:23 -0500
committerDavid S. Miller <davem@davemloft.net>2013-02-05 14:42:23 -0500
commit547472b8e1da72ae226430c0c4273e36fc8ca768 (patch)
tree2300023f8d0fa943725e1b4ea3b2b95c91de4430 /net/ipv4/af_inet.c
parent9d6ddb19905223828485d8c40deaec76e4dea3a5 (diff)
downloadlinux-547472b8e1da72ae226430c0c4273e36fc8ca768.tar.bz2
ipv4: Disallow non-namespace aware protocols to register.
All in-tree ipv4 protocol implementations are now namespace aware. Therefore all the run-time checks are superfluous. Reject registry of any non-namespace aware ipv4 protocol. Eventually we'll remove prot->netns_ok and this registry time check as well. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/af_inet.c')
-rw-r--r--net/ipv4/af_inet.c19
1 files changed, 0 insertions, 19 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 49ddca31c4da..1aec92bf8018 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -263,21 +263,6 @@ void build_ehash_secret(void)
}
EXPORT_SYMBOL(build_ehash_secret);
-static inline int inet_netns_ok(struct net *net, __u8 protocol)
-{
- const struct net_protocol *ipprot;
-
- if (net_eq(net, &init_net))
- return 1;
-
- ipprot = rcu_dereference(inet_protos[protocol]);
- if (ipprot == NULL) {
- /* raw IP is OK */
- return 1;
- }
- return ipprot->netns_ok;
-}
-
/*
* Create an inet socket.
*/
@@ -350,10 +335,6 @@ lookup_protocol:
!ns_capable(net->user_ns, CAP_NET_RAW))
goto out_rcu_unlock;
- err = -EAFNOSUPPORT;
- if (!inet_netns_ok(net, protocol))
- goto out_rcu_unlock;
-
sock->ops = answer->ops;
answer_prot = answer->prot;
answer_no_check = answer->no_check;