af_netlink.c File Reference

Go to the source code of this file.

Classes

struct netlink_sock

struct nl_pid_hash

struct netlink_table

struct netlink_broadcast_data

struct netlink_set_err_data

Defines

#define NLGRPSZ(x)   (ALIGN(x, sizeof(unsigned long) * 8) / 8)

#define NLGRPLONGS(x)   (NLGRPSZ(x)/sizeof(unsigned long))

#define NETLINK_KERNEL_SOCKET   0x1

#define NETLINK_RECV_PKTINFO   0x2

Functions

static struct netlink_sock * nlk_sk (struct sock *sk)

static int netlink_is_kernel (struct sock *sk)

static DECLARE_WAIT_QUEUE_HEAD (nl_table_wait)

static int netlink_dump (struct sock *sk)

static void netlink_destroy_callback (struct netlink_callback *cb)

static DEFINE_RWLOCK (nl_table_lock)

static ATOMIC_NOTIFIER_HEAD (netlink_chain)

static u32 netlink_group_mask (u32 group)

static struct hlist_head * nl_pid_hashfn (struct nl_pid_hash *hash, u32 pid)

static void netlink_sock_destruct (struct sock *sk)

static void netlink_table_grab (void)

static void netlink_table_ungrab (void)

static void netlink_lock_table (void)

static void netlink_unlock_table (void)

static struct sock * netlink_lookup (struct net *net, int protocol, u32 pid)

static struct hlist_head * nl_pid_hash_zalloc (size_t size)

static void nl_pid_hash_free (struct hlist_head *table, size_t size)

static int nl_pid_hash_rehash (struct nl_pid_hash *hash, int grow)

static int nl_pid_hash_dilute (struct nl_pid_hash *hash, int len)

static void netlink_update_listeners (struct sock *sk)

static int netlink_insert (struct sock *sk, struct net *net, u32 pid)

static void netlink_remove (struct sock *sk)

static int __netlink_create (struct net *net, struct socket *sock, struct mutex *cb_mutex, int protocol)

static int netlink_create (struct net *net, struct socket *sock, int protocol)

static int netlink_release (struct socket *sock)

static int netlink_autobind (struct socket *sock)

static int netlink_capable (struct socket *sock, unsigned int flag)

static void netlink_update_subscriptions (struct sock *sk, unsigned int subscriptions)

static int netlink_realloc_groups (struct sock *sk)

static int netlink_bind (struct socket *sock, struct sockaddr *addr, int addr_len)

static int netlink_connect (struct socket *sock, struct sockaddr *addr, int alen, int flags)

static int netlink_getname (struct socket *sock, struct sockaddr *addr, int *addr_len, int peer)

static void netlink_overrun (struct sock *sk)

static struct sock * netlink_getsockbypid (struct sock *ssk, u32 pid)

struct sock * netlink_getsockbyfilp (struct file *filp)

int netlink_attachskb (struct sock *sk, struct sk_buff *skb, long *timeo, struct sock *ssk)

int netlink_sendskb (struct sock *sk, struct sk_buff *skb)

void netlink_detachskb (struct sock *sk, struct sk_buff *skb)

static struct sk_buff * netlink_trim (struct sk_buff *skb, gfp_t allocation)

static void netlink_rcv_wake (struct sock *sk)

static int netlink_unicast_kernel (struct sock *sk, struct sk_buff *skb)

int netlink_unicast (struct sock *ssk, struct sk_buff *skb, u32 pid, int nonblock)

EXPORT_SYMBOL (netlink_unicast)

int netlink_has_listeners (struct sock *sk, unsigned int group)

EXPORT_SYMBOL_GPL (netlink_has_listeners)

static int netlink_broadcast_deliver (struct sock *sk, struct sk_buff *skb)

static int do_one_broadcast (struct sock *sk, struct netlink_broadcast_data *p)

int netlink_broadcast (struct sock *ssk, struct sk_buff *skb, u32 pid, u32 group, gfp_t allocation)

EXPORT_SYMBOL (netlink_broadcast)

static int do_one_set_err (struct sock *sk, struct netlink_set_err_data *p)

Variables

static struct netlink_table * nl_table

static atomic_t nl_table_users = ATOMIC_INIT(0)

static struct proto_ops netlink_ops

static struct proto netlink_proto

Define Documentation

#define NETLINK_KERNEL_SOCKET 0x1

Definition at line 86 of file af_netlink.c.

#define NETLINK_RECV_PKTINFO 0x2

Definition at line 87 of file af_netlink.c.

#define NLGRPLONGS ( x ) (NLGRPSZ(x)/sizeof(unsigned long))

Definition at line 65 of file af_netlink.c.

#define NLGRPSZ ( x ) (ALIGN(x, sizeof(unsigned long) * 8) / 8)

Definition at line 64 of file af_netlink.c.

Function Documentation

static int __netlink_create	(	struct net *	net,
		struct socket *	sock,
		struct mutex *	cb_mutex,
		int	protocol
	)			`[static]`

Definition at line 394 of file af_netlink.c.

static ATOMIC_NOTIFIER_HEAD ( netlink_chain ) [static]

static DECLARE_WAIT_QUEUE_HEAD ( nl_table_wait ) [static]

static DEFINE_RWLOCK ( nl_table_lock ) [static]

static int do_one_broadcast	(	struct sock *	sk,
		struct netlink_broadcast_data *	p
	)			`[inline, static]`

Definition at line 959 of file af_netlink.c.

static int do_one_set_err	(	struct sock *	sk,
		struct netlink_set_err_data *	p
	)			`[inline, static]`

Definition at line 1066 of file af_netlink.c.

EXPORT_SYMBOL ( netlink_broadcast )

EXPORT_SYMBOL ( netlink_unicast )

EXPORT_SYMBOL_GPL ( netlink_has_listeners )

int netlink_attachskb	(	struct sock *	sk,
		struct sk_buff *	skb,
		long *	timeo,
		struct sock *	ssk
	)

Definition at line 770 of file af_netlink.c.

static int netlink_autobind ( struct socket * sock ) [static]

Definition at line 525 of file af_netlink.c.

static int netlink_bind	(	struct socket *	sock,
		struct sockaddr *	addr,
		int	addr_len
	)			`[static]`

Definition at line 617 of file af_netlink.c.

int netlink_broadcast	(	struct sock *	ssk,
		struct sk_buff *	skb,
		u32	pid,
		u32	group,
		gfp_t	allocation
	)

Definition at line 1013 of file af_netlink.c.

static int netlink_broadcast_deliver	(	struct sock *	sk,
		struct sk_buff *	skb
	)			`[inline, static]`

Definition at line 932 of file af_netlink.c.

static int netlink_capable	(	struct socket *	sock,
		unsigned int	flag
	)			`[inline, static]`

Definition at line 566 of file af_netlink.c.

static int netlink_connect	(	struct socket *	sock,
		struct sockaddr *	addr,
		int	alen,
		int	flags
	)			`[static]`

Definition at line 663 of file af_netlink.c.

static int netlink_create	(	struct net *	net,
		struct socket *	sock,
		int	protocol
	)			`[static]`

Definition at line 422 of file af_netlink.c.

static void netlink_destroy_callback ( struct netlink_callback * cb ) [static]

void netlink_detachskb	(	struct sock *	sk,
		struct sk_buff *	skb
	)

Definition at line 820 of file af_netlink.c.

static int netlink_dump ( struct sock * sk ) [static]

static int netlink_getname	(	struct socket *	sock,
		struct sockaddr *	addr,
		int *	addr_len,
		int	peer
	)			`[static]`

Definition at line 696 of file af_netlink.c.

struct sock* netlink_getsockbyfilp ( struct file * filp ) [read]

Definition at line 744 of file af_netlink.c.

static struct sock* netlink_getsockbypid	(	struct sock *	ssk,
		u32	pid
	)			`[static, read]`

Definition at line 725 of file af_netlink.c.

static u32 netlink_group_mask ( u32 group ) [static]

Definition at line 135 of file af_netlink.c.

int netlink_has_listeners	(	struct sock *	sk,
		unsigned int	group
	)

Definition at line 913 of file af_netlink.c.

static int netlink_insert	(	struct sock *	sk,
		struct net *	net,
		u32	pid
	)			`[static]`

Definition at line 338 of file af_netlink.c.

static int netlink_is_kernel ( struct sock * sk ) [inline, static]

Definition at line 94 of file af_netlink.c.

static void netlink_lock_table ( void ) [inline, static]

Definition at line 204 of file af_netlink.c.

static struct sock* netlink_lookup	(	struct net *	net,
		int	protocol,
		u32	pid
	)			`[static, read]`

Definition at line 220 of file af_netlink.c.

static void netlink_overrun ( struct sock * sk ) [static]

Definition at line 717 of file af_netlink.c.

static void netlink_rcv_wake ( struct sock * sk ) [inline, static]

Definition at line 851 of file af_netlink.c.

static int netlink_realloc_groups ( struct sock * sk ) [static]

Definition at line 584 of file af_netlink.c.

static int netlink_release ( struct socket * sock ) [static]

Definition at line 469 of file af_netlink.c.

static void netlink_remove ( struct sock * sk ) [static]

Definition at line 378 of file af_netlink.c.

int netlink_sendskb	(	struct sock *	sk,
		struct sk_buff *	skb
	)

Definition at line 810 of file af_netlink.c.

static void netlink_sock_destruct ( struct sock * sk ) [static]

Definition at line 145 of file af_netlink.c.

static void netlink_table_grab ( void ) [static]

Definition at line 173 of file af_netlink.c.

static void netlink_table_ungrab ( void ) [static]

Definition at line 196 of file af_netlink.c.

static struct sk_buff* netlink_trim	(	struct sk_buff *	skb,
		gfp_t	allocation
	)			`[static, read]`

Definition at line 826 of file af_netlink.c.

int netlink_unicast	(	struct sock *	ssk,
		struct sk_buff *	skb,
		u32	pid,
		int	nonblock
	)

Definition at line 877 of file af_netlink.c.

static int netlink_unicast_kernel	(	struct sock *	sk,
		struct sk_buff *	skb
	)			`[inline, static]`

Definition at line 861 of file af_netlink.c.

static void netlink_unlock_table ( void ) [inline, static]

Definition at line 214 of file af_netlink.c.

static void netlink_update_listeners ( struct sock * sk ) [static]

Definition at line 319 of file af_netlink.c.

static void netlink_update_subscriptions	(	struct sock *	sk,
		unsigned int	subscriptions
	)			`[static]`

Definition at line 573 of file af_netlink.c.

static int nl_pid_hash_dilute	(	struct nl_pid_hash *	hash,
		int	len
	)			`[inline, static]`

Definition at line 301 of file af_netlink.c.

static void nl_pid_hash_free	(	struct hlist_head *	table,
		size_t	size
	)			`[inline, static]`

Definition at line 252 of file af_netlink.c.

static int nl_pid_hash_rehash	(	struct nl_pid_hash *	hash,
		int	grow
	)			`[static]`

Definition at line 260 of file af_netlink.c.

static struct hlist_head* nl_pid_hash_zalloc ( size_t size ) [static, read]

Definition at line 242 of file af_netlink.c.

static struct hlist_head* nl_pid_hashfn	(	struct nl_pid_hash *	hash,
		u32	pid
	)			`[static, read]`

Definition at line 140 of file af_netlink.c.

static struct netlink_sock* nlk_sk ( struct sock * sk ) [static, read]

Definition at line 89 of file af_netlink.c.

Variable Documentation

struct proto_ops netlink_ops [static]

Definition at line 316 of file af_netlink.c.

struct proto netlink_proto [static]

Initial value:

 {
        .name     = "NETLINK",
        .owner    = THIS_MODULE,
        .obj_size = sizeof(struct netlink_sock),
}

Definition at line 388 of file af_netlink.c.

struct netlink_table* nl_table [static]

Definition at line 123 of file af_netlink.c.

atomic_t nl_table_users = ATOMIC_INIT(0) [static]

Definition at line 131 of file af_netlink.c.


Classes
struct	netlink_sock
struct	nl_pid_hash
struct	netlink_table
struct	netlink_broadcast_data
struct	netlink_set_err_data
Defines
#define	NLGRPSZ(x) (ALIGN(x, sizeof(unsigned long) * 8) / 8)
#define	NLGRPLONGS(x) (NLGRPSZ(x)/sizeof(unsigned long))
#define	NETLINK_KERNEL_SOCKET 0x1
#define	NETLINK_RECV_PKTINFO 0x2
Functions
static struct netlink_sock *	nlk_sk (struct sock *sk)
static int	netlink_is_kernel (struct sock *sk)
static	DECLARE_WAIT_QUEUE_HEAD (nl_table_wait)
static int	netlink_dump (struct sock *sk)
static void	netlink_destroy_callback (struct netlink_callback *cb)
static	DEFINE_RWLOCK (nl_table_lock)
static	ATOMIC_NOTIFIER_HEAD (netlink_chain)
static u32	netlink_group_mask (u32 group)
static struct hlist_head *	nl_pid_hashfn (struct nl_pid_hash *hash, u32 pid)
static void	netlink_sock_destruct (struct sock *sk)
static void	netlink_table_grab (void)
static void	netlink_table_ungrab (void)
static void	netlink_lock_table (void)
static void	netlink_unlock_table (void)
static struct sock *	netlink_lookup (struct net *net, int protocol, u32 pid)
static struct hlist_head *	nl_pid_hash_zalloc (size_t size)
static void	nl_pid_hash_free (struct hlist_head *table, size_t size)
static int	nl_pid_hash_rehash (struct nl_pid_hash *hash, int grow)
static int	nl_pid_hash_dilute (struct nl_pid_hash *hash, int len)
static void	netlink_update_listeners (struct sock *sk)
static int	netlink_insert (struct sock sk, struct net net, u32 pid)
static void	netlink_remove (struct sock *sk)
static int	__netlink_create (struct net net, struct socket sock, struct mutex *cb_mutex, int protocol)
static int	netlink_create (struct net net, struct socket sock, int protocol)
static int	netlink_release (struct socket *sock)
static int	netlink_autobind (struct socket *sock)
static int	netlink_capable (struct socket *sock, unsigned int flag)
static void	netlink_update_subscriptions (struct sock *sk, unsigned int subscriptions)
static int	netlink_realloc_groups (struct sock *sk)
static int	netlink_bind (struct socket sock, struct sockaddr addr, int addr_len)
static int	netlink_connect (struct socket sock, struct sockaddr addr, int alen, int flags)
static int	netlink_getname (struct socket sock, struct sockaddr addr, int *addr_len, int peer)
static void	netlink_overrun (struct sock *sk)
static struct sock *	netlink_getsockbypid (struct sock *ssk, u32 pid)
struct sock *	netlink_getsockbyfilp (struct file *filp)
int	netlink_attachskb (struct sock sk, struct sk_buff skb, long timeo, struct sock ssk)
int	netlink_sendskb (struct sock sk, struct sk_buff skb)
void	netlink_detachskb (struct sock sk, struct sk_buff skb)
static struct sk_buff *	netlink_trim (struct sk_buff *skb, gfp_t allocation)
static void	netlink_rcv_wake (struct sock *sk)
static int	netlink_unicast_kernel (struct sock sk, struct sk_buff skb)
int	netlink_unicast (struct sock ssk, struct sk_buff skb, u32 pid, int nonblock)
	EXPORT_SYMBOL (netlink_unicast)
int	netlink_has_listeners (struct sock *sk, unsigned int group)
	EXPORT_SYMBOL_GPL (netlink_has_listeners)
static int	netlink_broadcast_deliver (struct sock sk, struct sk_buff skb)
static int	do_one_broadcast (struct sock sk, struct netlink_broadcast_data p)
int	netlink_broadcast (struct sock ssk, struct sk_buff skb, u32 pid, u32 group, gfp_t allocation)
	EXPORT_SYMBOL (netlink_broadcast)
static int	do_one_set_err (struct sock sk, struct netlink_set_err_data p)
Variables
static struct netlink_table *	nl_table
static atomic_t	nl_table_users = ATOMIC_INIT(0)
static struct proto_ops	netlink_ops
static struct proto	netlink_proto