#include <net/addrconf.h>
#include <net/icmp.h>
#include <net/xfrm.h>
+#include <net/inet_common.h>
#include <asm/uaccess.h>
#include <asm/system.h>
*
* On SMP we have one ICMP socket per-cpu.
*/
-static DEFINE_PER_CPU(struct sock *, __icmpv6_sk) = NULL;
-#define icmpv6_sk __get_cpu_var(__icmpv6_sk)
+static inline struct sock *icmpv6_sk(struct net *net)
+{
+ return net->ipv6.icmp_sk[smp_processor_id()];
+}
static int icmpv6_rcv(struct sk_buff *skb);
struct flowi *fl)
{
struct dst_entry *dst;
+ struct net *net = sock_net(sk);
int res = 0;
/* Informational messages are not limited. */
* XXX: perhaps the expire for routing entries cloned by
* this lookup should be more aggressive (not longer than timeout).
*/
- dst = ip6_route_output(sk, fl);
+ dst = ip6_route_output(net, sk, fl);
if (dst->error) {
IP6_INC_STATS(ip6_dst_idev(dst),
IPSTATS_MIB_OUTNOROUTES);
res = 1;
} else {
struct rt6_info *rt = (struct rt6_info *)dst;
- int tmo = init_net.ipv6.sysctl.icmpv6_time;
+ int tmo = net->ipv6.sysctl.icmpv6_time;
/* Give more bandwidth to wider prefixes. */
if (rt->rt6i_dst.plen < 128)
void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
struct net_device *dev)
{
+ struct net *net = dev_net(skb->dev);
struct inet6_dev *idev = NULL;
struct ipv6hdr *hdr = ipv6_hdr(skb);
struct sock *sk;
*/
addr_type = ipv6_addr_type(&hdr->daddr);
- if (ipv6_chk_addr(&init_net, &hdr->daddr, skb->dev, 0))
+ if (ipv6_chk_addr(net, &hdr->daddr, skb->dev, 0))
saddr = &hdr->daddr;
/*
fl.fl_icmp_code = code;
security_skb_classify_flow(skb, &fl);
- sk = icmpv6_sk;
+ sk = icmpv6_sk(net);
np = inet6_sk(sk);
if (icmpv6_xmit_lock(sk))
}
if (xfrm_decode_session_reverse(skb, &fl2, AF_INET6))
- goto out;
+ goto relookup_failed;
if (ip6_dst_lookup(sk, &dst2, &fl))
- goto out;
+ goto relookup_failed;
err = xfrm_lookup(&dst2, &fl, sk, XFRM_LOOKUP_ICMP);
- if (err == -ENOENT) {
+ switch (err) {
+ case 0:
+ dst_release(dst);
+ dst = dst2;
+ break;
+ case -EPERM:
+ goto out_dst_release;
+ default:
+relookup_failed:
if (!dst)
goto out;
- goto route_done;
+ break;
}
- dst_release(dst);
- dst = dst2;
-
- if (err)
- goto out;
-
route_done:
if (ipv6_addr_is_multicast(&fl.fl6_dst))
hlimit = np->mcast_hops;
else
hlimit = np->hop_limit;
if (hlimit < 0)
- hlimit = dst_metric(dst, RTAX_HOPLIMIT);
- if (hlimit < 0)
- hlimit = ipv6_get_hoplimit(dst->dev);
+ hlimit = ip6_dst_hoplimit(dst);
tclass = np->tclass;
if (tclass < 0)
static void icmpv6_echo_reply(struct sk_buff *skb)
{
+ struct net *net = dev_net(skb->dev);
struct sock *sk;
struct inet6_dev *idev;
struct ipv6_pinfo *np;
fl.fl_icmp_type = ICMPV6_ECHO_REPLY;
security_skb_classify_flow(skb, &fl);
- sk = icmpv6_sk;
+ sk = icmpv6_sk(net);
np = inet6_sk(sk);
if (icmpv6_xmit_lock(sk))
else
hlimit = np->hop_limit;
if (hlimit < 0)
- hlimit = dst_metric(dst, RTAX_HOPLIMIT);
- if (hlimit < 0)
- hlimit = ipv6_get_hoplimit(dst->dev);
+ hlimit = ip6_dst_hoplimit(dst);
tclass = np->tclass;
if (tclass < 0)
return 0;
}
+void icmpv6_flow_init(struct sock *sk, struct flowi *fl,
+ u8 type,
+ const struct in6_addr *saddr,
+ const struct in6_addr *daddr,
+ int oif)
+{
+ memset(fl, 0, sizeof(*fl));
+ ipv6_addr_copy(&fl->fl6_src, saddr);
+ ipv6_addr_copy(&fl->fl6_dst, daddr);
+ fl->proto = IPPROTO_ICMPV6;
+ fl->fl_icmp_type = type;
+ fl->fl_icmp_code = 0;
+ fl->oif = oif;
+ security_sk_classify_flow(sk, fl);
+}
+
/*
* Special lock-class for __icmpv6_sk:
*/
static struct lock_class_key icmpv6_socket_sk_dst_lock_key;
-int __init icmpv6_init(void)
+static int __net_init icmpv6_sk_init(struct net *net)
{
struct sock *sk;
int err, i, j;
+ net->ipv6.icmp_sk =
+ kzalloc(nr_cpu_ids * sizeof(struct sock *), GFP_KERNEL);
+ if (net->ipv6.icmp_sk == NULL)
+ return -ENOMEM;
+
for_each_possible_cpu(i) {
- struct socket *sock;
- err = sock_create_kern(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6,
- &sock);
+ err = inet_ctl_sock_create(&sk, PF_INET6,
+ SOCK_RAW, IPPROTO_ICMPV6, net);
if (err < 0) {
printk(KERN_ERR
"Failed to initialize the ICMP6 control socket "
goto fail;
}
- per_cpu(__icmpv6_sk, i) = sk = sock->sk;
- sk->sk_allocation = GFP_ATOMIC;
+ net->ipv6.icmp_sk[i] = sk;
+
/*
* Split off their lock-class, because sk->sk_dst_lock
* gets used from softirqs, which is safe for
*/
sk->sk_sndbuf =
(2 * ((64 * 1024) + sizeof(struct sk_buff)));
-
- sk->sk_prot->unhash(sk);
}
-
-
- if (inet6_add_protocol(&icmpv6_protocol, IPPROTO_ICMPV6) < 0) {
- printk(KERN_ERR "Failed to register ICMP6 protocol\n");
- err = -EAGAIN;
- goto fail;
- }
-
return 0;
fail:
- for (j = 0; j < i; j++) {
- if (!cpu_possible(j))
- continue;
- sock_release(per_cpu(__icmpv6_sk, j)->sk_socket);
- }
-
+ for (j = 0; j < i; j++)
+ inet_ctl_sock_destroy(net->ipv6.icmp_sk[j]);
+ kfree(net->ipv6.icmp_sk);
return err;
}
-void icmpv6_cleanup(void)
+static void __net_exit icmpv6_sk_exit(struct net *net)
{
int i;
for_each_possible_cpu(i) {
- sock_release(per_cpu(__icmpv6_sk, i)->sk_socket);
+ inet_ctl_sock_destroy(net->ipv6.icmp_sk[i]);
}
+ kfree(net->ipv6.icmp_sk);
+}
+
+static struct pernet_operations icmpv6_sk_ops = {
+ .init = icmpv6_sk_init,
+ .exit = icmpv6_sk_exit,
+};
+
+int __init icmpv6_init(void)
+{
+ int err;
+
+ err = register_pernet_subsys(&icmpv6_sk_ops);
+ if (err < 0)
+ return err;
+
+ err = -EAGAIN;
+ if (inet6_add_protocol(&icmpv6_protocol, IPPROTO_ICMPV6) < 0)
+ goto fail;
+ return 0;
+
+fail:
+ printk(KERN_ERR "Failed to register ICMP6 protocol\n");
+ unregister_pernet_subsys(&icmpv6_sk_ops);
+ return err;
+}
+
+void icmpv6_cleanup(void)
+{
+ unregister_pernet_subsys(&icmpv6_sk_ops);
inet6_del_protocol(&icmpv6_protocol, IPPROTO_ICMPV6);
}
+
static const struct icmp6_err {
int err;
int fatal;
table = kmemdup(ipv6_icmp_table_template,
sizeof(ipv6_icmp_table_template),
GFP_KERNEL);
+
+ if (table)
+ table[0].data = &net->ipv6.sysctl.icmpv6_time;
+
return table;
}
#endif
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff