From 7118c07a844d367560ee91adb2071bde2fabcdbf Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Sat, 14 Apr 2012 12:37:46 -0400 Subject: ipvs: Verify that IP_VS protocol has been registered The registration of a protocol might fail, there were no checks and all registrations were assumed to be correct. This lead to NULL ptr dereferences when apps tried registering. For example: [ 1293.226051] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 [ 1293.227038] IP: [] tcp_register_app+0x60/0xb0 [ 1293.227038] PGD 391de067 PUD 6c20b067 PMD 0 [ 1293.227038] Oops: 0000 [#1] PREEMPT SMP [ 1293.227038] CPU 1 [ 1293.227038] Pid: 19609, comm: trinity Tainted: G W 3.4.0-rc1-next-20120405-sasha-dirty #57 [ 1293.227038] RIP: 0010:[] [] tcp_register_app+0x60/0xb0 [ 1293.227038] RSP: 0018:ffff880038c1dd18 EFLAGS: 00010286 [ 1293.227038] RAX: ffffffffffffffc0 RBX: 0000000000001500 RCX: 0000000000010000 [ 1293.227038] RDX: 0000000000000000 RSI: ffff88003a2d5888 RDI: 0000000000000282 [ 1293.227038] RBP: ffff880038c1dd48 R08: 0000000000000000 R09: 0000000000000000 [ 1293.227038] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88003a2d5668 [ 1293.227038] R13: ffff88003a2d5988 R14: ffff8800696a8ff8 R15: 0000000000000000 [ 1293.227038] FS: 00007f01930d9700(0000) GS:ffff88007ce00000(0000) knlGS:0000000000000000 [ 1293.227038] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 1293.227038] CR2: 0000000000000018 CR3: 0000000065dfc000 CR4: 00000000000406e0 [ 1293.227038] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1293.227038] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 1293.227038] Process trinity (pid: 19609, threadinfo ffff880038c1c000, task ffff88002dc73000) [ 1293.227038] Stack: [ 1293.227038] ffff880038c1dd48 00000000fffffff4 ffff8800696aada0 ffff8800694f5580 [ 1293.227038] ffffffff8369f1e0 0000000000001500 ffff880038c1dd98 ffffffff822a716b [ 1293.227038] 0000000000000000 ffff8800696a8ff8 0000000000000015 ffff8800694f5580 [ 1293.227038] Call Trace: [ 1293.227038] [] ip_vs_app_inc_new+0xdb/0x180 [ 1293.227038] [] register_ip_vs_app_inc+0x48/0x70 [ 1293.227038] [] __ip_vs_ftp_init+0xba/0x140 [ 1293.227038] [] ops_init+0x80/0x90 [ 1293.227038] [] setup_net+0x5b/0xe0 [ 1293.227038] [] copy_net_ns+0x76/0x100 [ 1293.227038] [] create_new_namespaces+0xfb/0x190 [ 1293.227038] [] unshare_nsproxy_namespaces+0x61/0x80 [ 1293.227038] [] sys_unshare+0xff/0x290 [ 1293.227038] [] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 1293.227038] [] system_call_fastpath+0x16/0x1b [ 1293.227038] Code: 89 c7 e8 34 91 3b 00 89 de 66 c1 ee 04 31 de 83 e6 0f 48 83 c6 22 48 c1 e6 04 4a 8b 14 26 49 8d 34 34 48 8d 42 c0 48 39 d6 74 13 <66> 39 58 58 74 22 48 8b 48 40 48 8d 41 c0 48 39 ce 75 ed 49 8d [ 1293.227038] RIP [] tcp_register_app+0x60/0xb0 [ 1293.227038] RSP [ 1293.227038] CR2: 0000000000000018 [ 1293.379284] ---[ end trace 364ab40c7011a009 ]--- [ 1293.381182] Kernel panic - not syncing: Fatal exception in interrupt Signed-off-by: Sasha Levin Acked-by: Julian Anastasov Signed-off-by: Simon Horman Signed-off-by: Pablo Neira Ayuso --- net/netfilter/ipvs/ip_vs_proto.c | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-) (limited to 'net') diff --git a/net/netfilter/ipvs/ip_vs_proto.c b/net/netfilter/ipvs/ip_vs_proto.c index f843a8833250..a62360e29037 100644 --- a/net/netfilter/ipvs/ip_vs_proto.c +++ b/net/netfilter/ipvs/ip_vs_proto.c @@ -59,9 +59,6 @@ static int __used __init register_ip_vs_protocol(struct ip_vs_protocol *pp) return 0; } -#if defined(CONFIG_IP_VS_PROTO_TCP) || defined(CONFIG_IP_VS_PROTO_UDP) || \ - defined(CONFIG_IP_VS_PROTO_SCTP) || defined(CONFIG_IP_VS_PROTO_AH) || \ - defined(CONFIG_IP_VS_PROTO_ESP) /* * register an ipvs protocols netns related data */ @@ -86,7 +83,6 @@ register_ip_vs_proto_netns(struct net *net, struct ip_vs_protocol *pp) return 0; } -#endif /* * unregister an ipvs protocol @@ -316,22 +312,35 @@ ip_vs_tcpudp_debug_packet(int af, struct ip_vs_protocol *pp, */ int __net_init ip_vs_protocol_net_init(struct net *net) { + int i, ret; + static struct ip_vs_protocol *protos[] = { #ifdef CONFIG_IP_VS_PROTO_TCP - register_ip_vs_proto_netns(net, &ip_vs_protocol_tcp); + &ip_vs_protocol_tcp, #endif #ifdef CONFIG_IP_VS_PROTO_UDP - register_ip_vs_proto_netns(net, &ip_vs_protocol_udp); + &ip_vs_protocol_udp, #endif #ifdef CONFIG_IP_VS_PROTO_SCTP - register_ip_vs_proto_netns(net, &ip_vs_protocol_sctp); + &ip_vs_protocol_sctp, #endif #ifdef CONFIG_IP_VS_PROTO_AH - register_ip_vs_proto_netns(net, &ip_vs_protocol_ah); + &ip_vs_protocol_ah, #endif #ifdef CONFIG_IP_VS_PROTO_ESP - register_ip_vs_proto_netns(net, &ip_vs_protocol_esp); + &ip_vs_protocol_esp, #endif + }; + + for (i = 0; i < ARRAY_SIZE(protos); i++) { + ret = register_ip_vs_proto_netns(net, protos[i]); + if (ret < 0) + goto cleanup; + } return 0; + +cleanup: + ip_vs_protocol_net_cleanup(net); + return ret; } void __net_exit ip_vs_protocol_net_cleanup(struct net *net) -- cgit v1.2.3 From 8f9b9a2fad47af27e14b037395e03cd8278d96d7 Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Fri, 13 Apr 2012 18:08:43 +0300 Subject: ipvs: fix crash in ip_vs_control_net_cleanup on unload commit 14e405461e664b777e2a5636e10b2ebf36a686ec (2.6.39) ("Add __ip_vs_control_{init,cleanup}_sysctl()") introduced regression due to wrong __net_init for __ip_vs_control_cleanup_sysctl. This leads to crash when the ip_vs module is unloaded. Fix it by changing __net_init to __net_exit for the function that is already renamed to ip_vs_control_net_cleanup_sysctl. Signed-off-by: Julian Anastasov Signed-off-by: Hans Schillstrom Signed-off-by: Simon Horman Signed-off-by: Pablo Neira Ayuso --- net/netfilter/ipvs/ip_vs_ctl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'net') diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index b3afe189af61..376d2b12d581 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -3680,7 +3680,7 @@ int __net_init ip_vs_control_net_init_sysctl(struct net *net) return 0; } -void __net_init ip_vs_control_net_cleanup_sysctl(struct net *net) +void __net_exit ip_vs_control_net_cleanup_sysctl(struct net *net) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -3692,7 +3692,7 @@ void __net_init ip_vs_control_net_cleanup_sysctl(struct net *net) #else int __net_init ip_vs_control_net_init_sysctl(struct net *net) { return 0; } -void __net_init ip_vs_control_net_cleanup_sysctl(struct net *net) { } +void __net_exit ip_vs_control_net_cleanup_sysctl(struct net *net) { } #endif -- cgit v1.2.3 From 8d08d71ce59438a6ef06be5db07966e0c144b74e Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Wed, 25 Apr 2012 00:29:59 +0300 Subject: ipvs: add check in ftp for initialized core Avoid crash when registering ip_vs_ftp after the IPVS core initialization for netns fails. Do this by checking for present core (net->ipvs). Signed-off-by: Julian Anastasov Acked-by: Hans Schillstrom Signed-off-by: Simon Horman --- net/netfilter/ipvs/ip_vs_ftp.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net') diff --git a/net/netfilter/ipvs/ip_vs_ftp.c b/net/netfilter/ipvs/ip_vs_ftp.c index 538d74ee4f68..e39f693dd3e4 100644 --- a/net/netfilter/ipvs/ip_vs_ftp.c +++ b/net/netfilter/ipvs/ip_vs_ftp.c @@ -439,6 +439,8 @@ static int __net_init __ip_vs_ftp_init(struct net *net) struct ip_vs_app *app; struct netns_ipvs *ipvs = net_ipvs(net); + if (!ipvs) + return -ENOENT; app = kmemdup(&ip_vs_ftp, sizeof(struct ip_vs_app), GFP_KERNEL); if (!app) return -ENOMEM; -- cgit v1.2.3 From 39f618b4fd95ae243d940ec64c961009c74e3333 Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Wed, 25 Apr 2012 00:29:58 +0300 Subject: ipvs: reset ipvs pointer in netns Make sure net->ipvs is reset on netns cleanup or failed initialization. It is needed for IPVS applications to know that IPVS core is not loaded in netns. Signed-off-by: Julian Anastasov Acked-by: Hans Schillstrom Signed-off-by: Simon Horman --- net/netfilter/ipvs/ip_vs_core.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net') diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c index 2555816e7788..260b9ef88775 100644 --- a/net/netfilter/ipvs/ip_vs_core.c +++ b/net/netfilter/ipvs/ip_vs_core.c @@ -1924,6 +1924,7 @@ protocol_fail: control_fail: ip_vs_estimator_net_cleanup(net); estimator_fail: + net->ipvs = NULL; return -ENOMEM; } @@ -1936,6 +1937,7 @@ static void __net_exit __ip_vs_cleanup(struct net *net) ip_vs_control_net_cleanup(net); ip_vs_estimator_net_cleanup(net); IP_VS_DBG(2, "ipvs netns %d released\n", net_ipvs(net)->gen); + net->ipvs = NULL; } static void __net_exit __ip_vs_dev_cleanup(struct net *net) -- cgit v1.2.3 From 4b984cd50bc1b6d492175cd77bfabb78e76ffa67 Mon Sep 17 00:00:00 2001 From: Hans Schillstrom Date: Thu, 26 Apr 2012 09:45:34 +0200 Subject: ipvs: null check of net->ipvs in lblc(r) shedulers Avoid crash when registering shedulers after the IPVS core initialization for netns fails. Do this by checking for present core (net->ipvs). Signed-off-by: Hans Schillstrom Acked-by: Julian Anastasov Signed-off-by: Simon Horman --- net/netfilter/ipvs/ip_vs_lblc.c | 3 +++ net/netfilter/ipvs/ip_vs_lblcr.c | 3 +++ 2 files changed, 6 insertions(+) (limited to 'net') diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c index 0f16283fd058..caa43704e55e 100644 --- a/net/netfilter/ipvs/ip_vs_lblc.c +++ b/net/netfilter/ipvs/ip_vs_lblc.c @@ -551,6 +551,9 @@ static int __net_init __ip_vs_lblc_init(struct net *net) { struct netns_ipvs *ipvs = net_ipvs(net); + if (!ipvs) + return -ENOENT; + if (!net_eq(net, &init_net)) { ipvs->lblc_ctl_table = kmemdup(vs_vars_table, sizeof(vs_vars_table), diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c index eec797f8cce7..548bf37aa29e 100644 --- a/net/netfilter/ipvs/ip_vs_lblcr.c +++ b/net/netfilter/ipvs/ip_vs_lblcr.c @@ -745,6 +745,9 @@ static int __net_init __ip_vs_lblcr_init(struct net *net) { struct netns_ipvs *ipvs = net_ipvs(net); + if (!ipvs) + return -ENOENT; + if (!net_eq(net, &init_net)) { ipvs->lblcr_ctl_table = kmemdup(vs_vars_table, sizeof(vs_vars_table), -- cgit v1.2.3 From 582b8e3eadaec77788c1aa188081a8d5059c42a6 Mon Sep 17 00:00:00 2001 From: Hans Schillstrom Date: Thu, 26 Apr 2012 09:45:35 +0200 Subject: ipvs: take care of return value from protocol init_netns ip_vs_create_timeout_table() can return NULL All functions protocol init_netns is affected of this patch. Signed-off-by: Hans Schillstrom Acked-by: Julian Anastasov Signed-off-by: Simon Horman --- include/net/ip_vs.h | 2 +- net/netfilter/ipvs/ip_vs_proto.c | 11 +++++++++-- net/netfilter/ipvs/ip_vs_proto_sctp.c | 5 ++++- net/netfilter/ipvs/ip_vs_proto_tcp.c | 5 ++++- net/netfilter/ipvs/ip_vs_proto_udp.c | 5 ++++- 5 files changed, 22 insertions(+), 6 deletions(-) (limited to 'net') diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index 2bdee51ba30d..6d90dda2ddb5 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -393,7 +393,7 @@ struct ip_vs_protocol { void (*exit)(struct ip_vs_protocol *pp); - void (*init_netns)(struct net *net, struct ip_vs_proto_data *pd); + int (*init_netns)(struct net *net, struct ip_vs_proto_data *pd); void (*exit_netns)(struct net *net, struct ip_vs_proto_data *pd); diff --git a/net/netfilter/ipvs/ip_vs_proto.c b/net/netfilter/ipvs/ip_vs_proto.c index a62360e29037..ed835e67a07e 100644 --- a/net/netfilter/ipvs/ip_vs_proto.c +++ b/net/netfilter/ipvs/ip_vs_proto.c @@ -78,8 +78,15 @@ register_ip_vs_proto_netns(struct net *net, struct ip_vs_protocol *pp) ipvs->proto_data_table[hash] = pd; atomic_set(&pd->appcnt, 0); /* Init app counter */ - if (pp->init_netns != NULL) - pp->init_netns(net, pd); + if (pp->init_netns != NULL) { + int ret = pp->init_netns(net, pd); + if (ret) { + /* unlink an free proto data */ + ipvs->proto_data_table[hash] = pd->next; + kfree(pd); + return ret; + } + } return 0; } diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c index 1fbf7a2816f5..9f3fb751c491 100644 --- a/net/netfilter/ipvs/ip_vs_proto_sctp.c +++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c @@ -1090,7 +1090,7 @@ out: * timeouts is netns related now. * --------------------------------------------- */ -static void __ip_vs_sctp_init(struct net *net, struct ip_vs_proto_data *pd) +static int __ip_vs_sctp_init(struct net *net, struct ip_vs_proto_data *pd) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -1098,6 +1098,9 @@ static void __ip_vs_sctp_init(struct net *net, struct ip_vs_proto_data *pd) spin_lock_init(&ipvs->sctp_app_lock); pd->timeout_table = ip_vs_create_timeout_table((int *)sctp_timeouts, sizeof(sctp_timeouts)); + if (!pd->timeout_table) + return -ENOMEM; + return 0; } static void __ip_vs_sctp_exit(struct net *net, struct ip_vs_proto_data *pd) diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c index ef8641f7af83..cd609cc62721 100644 --- a/net/netfilter/ipvs/ip_vs_proto_tcp.c +++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c @@ -677,7 +677,7 @@ void ip_vs_tcp_conn_listen(struct net *net, struct ip_vs_conn *cp) * timeouts is netns related now. * --------------------------------------------- */ -static void __ip_vs_tcp_init(struct net *net, struct ip_vs_proto_data *pd) +static int __ip_vs_tcp_init(struct net *net, struct ip_vs_proto_data *pd) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -685,7 +685,10 @@ static void __ip_vs_tcp_init(struct net *net, struct ip_vs_proto_data *pd) spin_lock_init(&ipvs->tcp_app_lock); pd->timeout_table = ip_vs_create_timeout_table((int *)tcp_timeouts, sizeof(tcp_timeouts)); + if (!pd->timeout_table) + return -ENOMEM; pd->tcp_state_table = tcp_states; + return 0; } static void __ip_vs_tcp_exit(struct net *net, struct ip_vs_proto_data *pd) diff --git a/net/netfilter/ipvs/ip_vs_proto_udp.c b/net/netfilter/ipvs/ip_vs_proto_udp.c index f4b7262896bb..2fedb2dcb3d1 100644 --- a/net/netfilter/ipvs/ip_vs_proto_udp.c +++ b/net/netfilter/ipvs/ip_vs_proto_udp.c @@ -467,7 +467,7 @@ udp_state_transition(struct ip_vs_conn *cp, int direction, cp->timeout = pd->timeout_table[IP_VS_UDP_S_NORMAL]; } -static void __udp_init(struct net *net, struct ip_vs_proto_data *pd) +static int __udp_init(struct net *net, struct ip_vs_proto_data *pd) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -475,6 +475,9 @@ static void __udp_init(struct net *net, struct ip_vs_proto_data *pd) spin_lock_init(&ipvs->udp_app_lock); pd->timeout_table = ip_vs_create_timeout_table((int *)udp_timeouts, sizeof(udp_timeouts)); + if (!pd->timeout_table) + return -ENOMEM; + return 0; } static void __udp_exit(struct net *net, struct ip_vs_proto_data *pd) -- cgit v1.2.3 From 8537de8a7ab6681cc72fb0411ab1ba7fdba62dd0 Mon Sep 17 00:00:00 2001 From: Hans Schillstrom Date: Thu, 26 Apr 2012 07:47:44 +0200 Subject: ipvs: kernel oops - do_ip_vs_get_ctl Change order of init so netns init is ready when register ioctl and netlink. Ver2 Whitespace fixes and __init added. Reported-by: "Ryan O'Hara" Signed-off-by: Hans Schillstrom Acked-by: Julian Anastasov Signed-off-by: Jesper Dangaard Brouer Signed-off-by: Simon Horman --- include/net/ip_vs.h | 2 ++ net/netfilter/ipvs/ip_vs_core.c | 9 +++++++ net/netfilter/ipvs/ip_vs_ctl.c | 52 ++++++++++++++++++++++++----------------- 3 files changed, 41 insertions(+), 22 deletions(-) (limited to 'net') diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index 6d90dda2ddb5..72522f087375 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -1203,6 +1203,8 @@ ip_vs_lookup_real_service(struct net *net, int af, __u16 protocol, extern int ip_vs_use_count_inc(void); extern void ip_vs_use_count_dec(void); +extern int ip_vs_register_nl_ioctl(void); +extern void ip_vs_unregister_nl_ioctl(void); extern int ip_vs_control_init(void); extern void ip_vs_control_cleanup(void); extern struct ip_vs_dest * diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c index 260b9ef88775..00bdb1d9d690 100644 --- a/net/netfilter/ipvs/ip_vs_core.c +++ b/net/netfilter/ipvs/ip_vs_core.c @@ -1995,10 +1995,18 @@ static int __init ip_vs_init(void) goto cleanup_dev; } + ret = ip_vs_register_nl_ioctl(); + if (ret < 0) { + pr_err("can't register netlink/ioctl.\n"); + goto cleanup_hooks; + } + pr_info("ipvs loaded.\n"); return ret; +cleanup_hooks: + nf_unregister_hooks(ip_vs_ops, ARRAY_SIZE(ip_vs_ops)); cleanup_dev: unregister_pernet_device(&ipvs_core_dev_ops); cleanup_sub: @@ -2014,6 +2022,7 @@ exit: static void __exit ip_vs_cleanup(void) { + ip_vs_unregister_nl_ioctl(); nf_unregister_hooks(ip_vs_ops, ARRAY_SIZE(ip_vs_ops)); unregister_pernet_device(&ipvs_core_dev_ops); unregister_pernet_subsys(&ipvs_core_ops); /* free ip_vs struct */ diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index 376d2b12d581..f5589987fc80 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -3750,21 +3750,10 @@ void __net_exit ip_vs_control_net_cleanup(struct net *net) free_percpu(ipvs->tot_stats.cpustats); } -int __init ip_vs_control_init(void) +int __init ip_vs_register_nl_ioctl(void) { - int idx; int ret; - EnterFunction(2); - - /* Initialize svc_table, ip_vs_svc_fwm_table, rs_table */ - for(idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) { - INIT_LIST_HEAD(&ip_vs_svc_table[idx]); - INIT_LIST_HEAD(&ip_vs_svc_fwm_table[idx]); - } - - smp_wmb(); /* Do we really need it now ? */ - ret = nf_register_sockopt(&ip_vs_sockopts); if (ret) { pr_err("cannot register sockopt.\n"); @@ -3776,28 +3765,47 @@ int __init ip_vs_control_init(void) pr_err("cannot register Generic Netlink interface.\n"); goto err_genl; } - - ret = register_netdevice_notifier(&ip_vs_dst_notifier); - if (ret < 0) - goto err_notf; - - LeaveFunction(2); return 0; -err_notf: - ip_vs_genl_unregister(); err_genl: nf_unregister_sockopt(&ip_vs_sockopts); err_sock: return ret; } +void ip_vs_unregister_nl_ioctl(void) +{ + ip_vs_genl_unregister(); + nf_unregister_sockopt(&ip_vs_sockopts); +} + +int __init ip_vs_control_init(void) +{ + int idx; + int ret; + + EnterFunction(2); + + /* Initialize svc_table, ip_vs_svc_fwm_table, rs_table */ + for (idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) { + INIT_LIST_HEAD(&ip_vs_svc_table[idx]); + INIT_LIST_HEAD(&ip_vs_svc_fwm_table[idx]); + } + + smp_wmb(); /* Do we really need it now ? */ + + ret = register_netdevice_notifier(&ip_vs_dst_notifier); + if (ret < 0) + return ret; + + LeaveFunction(2); + return 0; +} + void ip_vs_control_cleanup(void) { EnterFunction(2); unregister_netdevice_notifier(&ip_vs_dst_notifier); - ip_vs_genl_unregister(); - nf_unregister_sockopt(&ip_vs_sockopts); LeaveFunction(2); } -- cgit v1.2.3 From 6cf51852486af3d79f57bf46d00209a14244dbaa Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Fri, 27 Apr 2012 02:00:50 +0200 Subject: netfilter: xt_CT: fix wrong checking in the timeout assignment path The current checking always succeeded. We have to check the first character of the string to check that it's empty, thus, skipping the timeout path. This fixes the use of the CT target without the timeout option. Signed-off-by: Pablo Neira Ayuso --- net/netfilter/xt_CT.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net') diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c index 59530e93fa58..3746d8b9a478 100644 --- a/net/netfilter/xt_CT.c +++ b/net/netfilter/xt_CT.c @@ -227,7 +227,7 @@ static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par) } #ifdef CONFIG_NF_CONNTRACK_TIMEOUT - if (info->timeout) { + if (info->timeout[0]) { typeof(nf_ct_timeout_find_get_hook) timeout_find_get; struct nf_conn_timeout *timeout_ext; -- cgit v1.2.3