sctp: Make the address lists per network namespace

- Move the address lists into struct net
- Add per network namespace initialization and cleanup
- Pass around struct net so it is everywhere I need it.
- Rename all of the global variable references into references
  to the variables moved into struct net

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 3 deletions

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 4316b0f988d4..5b6dd0e3d1f6 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -3471,7 +3471,7 @@ static int sctp_setsockopt_auto_asconf(struct sock *sk, char __user *optval,
                 sp->do_auto_asconf = 0;
         } else if (val && !sp->do_auto_asconf) {
                 list_add_tail(&sp->auto_asconf_list,
-                    &sctp_auto_asconf_splist);
+                    &sock_net(sk)->sctp.auto_asconf_splist);
                 sp->do_auto_asconf = 1;
         }
         return 0;
@@ -3964,7 +3964,7 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
         sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
         if (sctp_default_auto_asconf) {
                 list_add_tail(&sp->auto_asconf_list,
-                    &sctp_auto_asconf_splist);
+                    &sock_net(sk)->sctp.auto_asconf_splist);
                 sp->do_auto_asconf = 1;
         } else
                 sp->do_auto_asconf = 0;
@@ -4653,9 +4653,10 @@ static int sctp_copy_laddrs(struct sock *sk, __u16 port, void *to,
         union sctp_addr temp;
         int cnt = 0;
         int addrlen;
+        struct net *net = sock_net(sk);
 
         rcu_read_lock();
-        list_for_each_entry_rcu(addr, &sctp_local_addr_list, list) {
+        list_for_each_entry_rcu(addr, &net->sctp.local_addr_list, list) {
                 if (!addr->valid)
                         continue;