diff options
| -rw-r--r-- | include/net/netns/ipv4.h | 2 | ||||
| -rw-r--r-- | net/ipv4/icmp.c | 49 |
2 files changed, 34 insertions, 17 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index a9b4f6086294..504fde174525 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -26,6 +26,8 @@ struct netns_ipv4 { struct hlist_head *fib_table_hash; struct sock *fibnl; + struct sock **icmp_sk; + struct netns_frags frags; #ifdef CONFIG_NETFILTER struct xt_table *iptable_filter; diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index 97d97ada4ce6..b51f4b0a3264 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -229,8 +229,10 @@ static const struct icmp_control icmp_pointers[NR_ICMP_TYPES+1]; * * On SMP we have one ICMP socket per-cpu. */ -static struct sock **__icmp_sk = NULL; -#define icmp_sk (__icmp_sk[smp_processor_id()]) +static struct sock *icmp_sk(struct net *net) +{ + return net->ipv4.icmp_sk[smp_processor_id()]; +} static inline int icmp_xmit_lock(struct sock *sk) { @@ -349,7 +351,7 @@ static void icmp_push_reply(struct icmp_bxm *icmp_param, struct sock *sk; struct sk_buff *skb; - sk = icmp_sk; + sk = icmp_sk(rt->u.dst.dev->nd_net); if (ip_append_data(sk, icmp_glue_bits, icmp_param, icmp_param->data_len+icmp_param->head_len, icmp_param->head_len, @@ -378,10 +380,11 @@ static void icmp_push_reply(struct icmp_bxm *icmp_param, static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb) { - struct sock *sk = icmp_sk; - struct inet_sock *inet = inet_sk(sk); struct ipcm_cookie ipc; struct rtable *rt = (struct rtable *)skb->dst; + struct net *net = rt->u.dst.dev->nd_net; + struct sock *sk = icmp_sk(net); + struct inet_sock *inet = inet_sk(sk); __be32 daddr; if (ip_options_echo(&icmp_param->replyopts, skb)) @@ -407,7 +410,7 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb) .tos = RT_TOS(ip_hdr(skb)->tos) } }, .proto = IPPROTO_ICMP }; security_skb_classify_flow(skb, &fl); - if (ip_route_output_key(rt->u.dst.dev->nd_net, &rt, &fl)) + if (ip_route_output_key(net, &rt, &fl)) goto out_unlock; } if (icmpv4_xrlim_allow(rt, icmp_param->data.icmph.type, @@ -440,11 +443,12 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info) __be32 saddr; u8 tos; struct net *net; - struct sock *sk = icmp_sk; + struct sock *sk; if (!rt) goto out; net = rt->u.dst.dev->nd_net; + sk = icmp_sk(net); /* * Find the original header. It is expected to be valid, of course. @@ -1142,22 +1146,23 @@ static const struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = { }, }; -static void __exit icmp_exit(void) +static void __net_exit icmp_sk_exit(struct net *net) { int i; for_each_possible_cpu(i) - sk_release_kernel(__icmp_sk[i]); - kfree(__icmp_sk); - __icmp_sk = NULL; + sk_release_kernel(net->ipv4.icmp_sk[i]); + kfree(net->ipv4.icmp_sk); + net->ipv4.icmp_sk = NULL; } -int __init icmp_init(void) +int __net_init icmp_sk_init(struct net *net) { int i, err; - __icmp_sk = kzalloc(nr_cpu_ids * sizeof(struct sock *), GFP_KERNEL); - if (__icmp_sk == NULL) + net->ipv4.icmp_sk = + kzalloc(nr_cpu_ids * sizeof(struct sock *), GFP_KERNEL); + if (net->ipv4.icmp_sk == NULL) return -ENOMEM; for_each_possible_cpu(i) { @@ -1169,8 +1174,8 @@ int __init icmp_init(void) if (err < 0) goto fail; - __icmp_sk[i] = sk = sock->sk; - sk_change_net(sk, &init_net); + net->ipv4.icmp_sk[i] = sk = sock->sk; + sk_change_net(sk, net); sk->sk_allocation = GFP_ATOMIC; @@ -1193,10 +1198,20 @@ int __init icmp_init(void) return 0; fail: - icmp_exit(); + icmp_sk_exit(net); return err; } +static struct pernet_operations __net_initdata icmp_sk_ops = { + .init = icmp_sk_init, + .exit = icmp_sk_exit, +}; + +int __init icmp_init(void) +{ + return register_pernet_device(&icmp_sk_ops); +} + EXPORT_SYMBOL(icmp_err_convert); EXPORT_SYMBOL(icmp_send); EXPORT_SYMBOL(icmp_statistics); |
