diff options
Diffstat (limited to 'net/ipv4/netfilter/ip_nat_helper_pptp.c')
| -rw-r--r-- | net/ipv4/netfilter/ip_nat_helper_pptp.c | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/net/ipv4/netfilter/ip_nat_helper_pptp.c b/net/ipv4/netfilter/ip_nat_helper_pptp.c index 329fdcd7d70..ec957bbb536 100644 --- a/net/ipv4/netfilter/ip_nat_helper_pptp.c +++ b/net/ipv4/netfilter/ip_nat_helper_pptp.c @@ -101,7 +101,7 @@ static void pptp_nat_expected(struct ip_conntrack *ct, DEBUGP("trying to unexpect other dir: "); DUMP_TUPLE(&t); - other_exp = ip_conntrack_expect_find(&t); + other_exp = ip_conntrack_expect_find_get(&t); if (other_exp) { ip_conntrack_unexpect_related(other_exp); ip_conntrack_expect_put(other_exp); @@ -315,17 +315,17 @@ static int __init ip_nat_helper_pptp_init(void) if (ret < 0) return ret; - BUG_ON(ip_nat_pptp_hook_outbound); - ip_nat_pptp_hook_outbound = &pptp_outbound_pkt; + BUG_ON(rcu_dereference(ip_nat_pptp_hook_outbound)); + rcu_assign_pointer(ip_nat_pptp_hook_outbound, pptp_outbound_pkt); - BUG_ON(ip_nat_pptp_hook_inbound); - ip_nat_pptp_hook_inbound = &pptp_inbound_pkt; + BUG_ON(rcu_dereference(ip_nat_pptp_hook_inbound)); + rcu_assign_pointer(ip_nat_pptp_hook_inbound, pptp_inbound_pkt); - BUG_ON(ip_nat_pptp_hook_exp_gre); - ip_nat_pptp_hook_exp_gre = &pptp_exp_gre; + BUG_ON(rcu_dereference(ip_nat_pptp_hook_exp_gre)); + rcu_assign_pointer(ip_nat_pptp_hook_exp_gre, pptp_exp_gre); - BUG_ON(ip_nat_pptp_hook_expectfn); - ip_nat_pptp_hook_expectfn = &pptp_nat_expected; + BUG_ON(rcu_dereference(ip_nat_pptp_hook_expectfn)); + rcu_assign_pointer(ip_nat_pptp_hook_expectfn, pptp_nat_expected); printk("ip_nat_pptp version %s loaded\n", IP_NAT_PPTP_VERSION); return 0; @@ -335,14 +335,13 @@ static void __exit ip_nat_helper_pptp_fini(void) { DEBUGP("cleanup_module\n" ); - ip_nat_pptp_hook_expectfn = NULL; - ip_nat_pptp_hook_exp_gre = NULL; - ip_nat_pptp_hook_inbound = NULL; - ip_nat_pptp_hook_outbound = NULL; + rcu_assign_pointer(ip_nat_pptp_hook_expectfn, NULL); + rcu_assign_pointer(ip_nat_pptp_hook_exp_gre, NULL); + rcu_assign_pointer(ip_nat_pptp_hook_inbound, NULL); + rcu_assign_pointer(ip_nat_pptp_hook_outbound, NULL); + synchronize_rcu(); ip_nat_proto_gre_fini(); - /* Make sure noone calls it, meanwhile */ - synchronize_net(); printk("ip_nat_pptp version %s unloaded\n", IP_NAT_PPTP_VERSION); } |