struct sock;
struct ctl_table_header;
struct net_generic;
+struct sock;
struct net {
atomic_t count; /* To decided when the network
spinlock_t rules_mod_lock;
struct sock *rtnl; /* rtnetlink socket */
+ struct sock *genl_sock;
struct netns_core core;
struct netns_mib mib;
#endif
#ifdef CONFIG_XFRM
struct netns_xfrm xfrm;
+#endif
+#ifdef CONFIG_WIRELESS_EXT
+ struct sk_buff_head wext_nlevents;
#endif
struct net_generic *gen;
};
extern struct list_head net_namespace_list;
+extern struct net *get_net_ns_by_pid(pid_t pid);
+
#ifdef CONFIG_NET_NS
extern void __put_net(struct net *net);
#define for_each_net(VAR) \
list_for_each_entry(VAR, &net_namespace_list, list)
+#define for_each_net_rcu(VAR) \
+ list_for_each_entry_rcu(VAR, &net_namespace_list, list)
+
#ifdef CONFIG_NET_NS
#define __net_init
#define __net_exit
* needs per network namespace operations use device pernet operations,
* otherwise use pernet subsys operations.
*
- * This is critically important. Most of the network code cleanup
- * runs with the assumption that dev_remove_pack has been called so no
- * new packets will arrive during and after the cleanup functions have
- * been called. dev_remove_pack is not per namespace so instead the
- * guarantee of no more packets arriving in a network namespace is
- * provided by ensuring that all network devices and all sockets have
- * left the network namespace before the cleanup methods are called.
+ * Network interfaces need to be removed from a dying netns _before_
+ * subsys notifiers can be called, as most of the network code cleanup
+ * (which is done from subsys notifiers) runs with the assumption that
+ * dev_remove_pack has been called so no new packets will arrive during
+ * and after the cleanup functions have been called. dev_remove_pack
+ * is not per namespace so instead the guarantee of no more packets
+ * arriving in a network namespace is provided by ensuring that all
+ * network devices and all sockets have left the network namespace
+ * before the cleanup methods are called.
*
* For the longest time the ipv4 icmp code was registered as a pernet
* device which caused kernel oops, and panics during network