net_namespace.h File Reference

#include <linux/atomic.h>
#include <linux/workqueue.h>
#include <linux/list.h>
#include <linux/sysctl.h>
#include <net/netns/core.h>
#include <net/netns/mib.h>
#include <net/netns/unix.h>
#include <net/netns/packet.h>
#include <net/netns/ipv4.h>
#include <net/netns/ipv6.h>
#include <net/netns/sctp.h>
#include <net/netns/dccp.h>
#include <net/netns/x_tables.h>
#include <net/netns/xfrm.h>
#include <linux/seq_file_net.h>

Go to the source code of this file.

Data Structures
struct	net
struct	pernet_operations

Macros
#define	NETDEV_HASHBITS   8
#define	NETDEV_HASHENTRIES   (1 << NETDEV_HASHBITS)
#define	LOOPBACK_IFINDEX   1
#define	net_drop_ns   NULL
#define	write_pnet(pnet, net)   do { (void)(net);} while (0)
#define	read_pnet(pnet)   (&init_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)
#define	__net_init   __init
#define	__net_exit   __exit_refok
#define	__net_initdata   __initdata
#define	__net_initconst   __initconst

Functions
struct net *	get_net_ns_by_pid (pid_t pid)
struct net *	get_net_ns_by_fd (int pid)
int	register_pernet_subsys (struct pernet_operations *)
void	unregister_pernet_subsys (struct pernet_operations *)
int	register_pernet_device (struct pernet_operations *)
void	unregister_pernet_device (struct pernet_operations *)

Variables
struct net	init_net
struct list_head	net_namespace_list

Macro Definition Documentation

#define __net_exit   __exit_refok

Definition at line 263 of file net_namespace.h.

#define __net_init   __init

Definition at line 262 of file net_namespace.h.

#define __net_initconst   __initconst

Definition at line 265 of file net_namespace.h.

#define __net_initdata   __initdata

Definition at line 264 of file net_namespace.h.

#define for_each_net

(

VAR

)

list_for_each_entry(VAR, &net_namespace_list, list)

Definition at line 250 of file net_namespace.h.

#define for_each_net_rcu

(

VAR

)

list_for_each_entry_rcu(VAR, &net_namespace_list, list)

Definition at line 253 of file net_namespace.h.

#define LOOPBACK_IFINDEX   1

Definition at line 122 of file net_namespace.h.

#define net_drop_ns   NULL

Definition at line 203 of file net_namespace.h.

#define NETDEV_HASHBITS   8

Definition at line 35 of file net_namespace.h.

#define NETDEV_HASHENTRIES   (1 << NETDEV_HASHBITS)

Definition at line 36 of file net_namespace.h.

#define read_pnet

(

pnet

)

(&init_net)

Definition at line 246 of file net_namespace.h.

#define write_pnet	(		pnet,
			net
	)		do { (void)(net);} while (0)

Definition at line 245 of file net_namespace.h.

Function Documentation

struct net* get_net_ns_by_fd ( int  pid )

read

Definition at line 357 of file net_namespace.c.

struct net* get_net_ns_by_pid ( pid_t  pid )

read

Definition at line 363 of file net_namespace.c.

int register_pernet_device

(

struct pernet_operations *

ops

)

register_pernet_device - register a network namespace device

: pernet operations structure for the subsystem

Register a device which has init and exit functions that are called when network namespaces are created and destroyed respectively.

When registered all network namespace init functions are called for every existing network namespace. Allowing kernel modules to have a race free view of the set of network namespaces.

When a new network namespace is created all of the init methods are called in the order in which they were registered.

When a network namespace is destroyed all of the exit methods are called in the reverse of the order with which they were registered.

Definition at line 579 of file net_namespace.c.

int register_pernet_subsys

(

struct pernet_operations *

ops

)

register_pernet_subsys - register a network namespace subsystem

: pernet operations structure for the subsystem

Register a subsystem which has init and exit functions that are called when network namespaces are created and destroyed respectively.

When registered all network namespace init functions are called for every existing network namespace. Allowing kernel modules to have a race free view of the set of network namespaces.

When a new network namespace is created all of the init methods are called in the order in which they were registered.

When a network namespace is destroyed all of the exit methods are called in the reverse of the order with which they were registered.

Definition at line 533 of file net_namespace.c.

void unregister_pernet_device

(

struct pernet_operations *

ops

)

unregister_pernet_device - unregister a network namespace netdevice

: pernet operations structure to manipulate

Remove the pernet operations structure from the list to be used when network namespaces are created or destroyed. In addition run the exit method for all existing network namespaces.

Definition at line 600 of file net_namespace.c.

void unregister_pernet_subsys

(

struct pernet_operations *

ops

)

unregister_pernet_subsys - unregister a network namespace subsystem

: pernet operations structure to manipulate

Remove the pernet operations structure from the list to be used when network namespaces are created or destroyed. In addition run the exit method for all existing network namespaces.

Definition at line 552 of file net_namespace.c.

Variable Documentation

struct net init_net

Definition at line 30 of file net_namespace.c.

struct list_head net_namespace_list