[mirror_ubuntu-artful-kernel.git] / include / linux / net.h

/*
 * NET		An implementation of the SOCKET network access protocol.
 *		This is the master header file for the Linux NET layer,
 *		or, in plain English: the networking handling part of the
 *		kernel.
 *
 * Version:	@(#)net.h	1.0.3	05/25/93
 *
 * Authors:	Orest Zborowski, <obz@Kodak.COM>
 *		Ross Biro
 *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 */
#ifndef _LINUX_NET_H
#define _LINUX_NET_H

#include <linux/stringify.h>
#include <linux/random.h>
#include <linux/wait.h>
#include <linux/fcntl.h>	/* For O_CLOEXEC and O_NONBLOCK */
#include <linux/kmemcheck.h>
#include <linux/rcupdate.h>
#include <linux/jump_label.h>
#include <uapi/linux/net.h>

struct poll_table_struct;
struct pipe_inode_info;
struct inode;
struct file;
struct net;

#define SOCK_ASYNC_NOSPACE	0
#define SOCK_ASYNC_WAITDATA	1
#define SOCK_NOSPACE		2
#define SOCK_PASSCRED		3
#define SOCK_PASSSEC		4
#define SOCK_EXTERNALLY_ALLOCATED 5

#ifndef ARCH_HAS_SOCKET_TYPES
/**
 * enum sock_type - Socket types
 * @SOCK_STREAM: stream (connection) socket
 * @SOCK_DGRAM: datagram (conn.less) socket
 * @SOCK_RAW: raw socket
 * @SOCK_RDM: reliably-delivered message
 * @SOCK_SEQPACKET: sequential packet socket
 * @SOCK_DCCP: Datagram Congestion Control Protocol socket
 * @SOCK_PACKET: linux specific way of getting packets at the dev level.
 *		  For writing rarp and other similar things on the user level.
 *
 * When adding some new socket type please
 * grep ARCH_HAS_SOCKET_TYPE include/asm-* /socket.h, at least MIPS
 * overrides this enum for binary compat reasons.
 */
enum sock_type {
	SOCK_STREAM	= 1,
	SOCK_DGRAM	= 2,
	SOCK_RAW	= 3,
	SOCK_RDM	= 4,
	SOCK_SEQPACKET	= 5,
	SOCK_DCCP	= 6,
	SOCK_PACKET	= 10,
};

#define SOCK_MAX (SOCK_PACKET + 1)
/* Mask which covers at least up to SOCK_MASK-1.  The
 * remaining bits are used as flags. */
#define SOCK_TYPE_MASK 0xf

/* Flags for socket, socketpair, accept4 */
#define SOCK_CLOEXEC	O_CLOEXEC
#ifndef SOCK_NONBLOCK
#define SOCK_NONBLOCK	O_NONBLOCK
#endif

#endif /* ARCH_HAS_SOCKET_TYPES */

enum sock_shutdown_cmd {
	SHUT_RD,
	SHUT_WR,
	SHUT_RDWR,
};

struct socket_wq {
	/* Note: wait MUST be first field of socket_wq */
	wait_queue_head_t	wait;
	struct fasync_struct	*fasync_list;
	struct rcu_head		rcu;
} ____cacheline_aligned_in_smp;

/**
 *  struct socket - general BSD socket
 *  @state: socket state (%SS_CONNECTED, etc)
 *  @type: socket type (%SOCK_STREAM, etc)
 *  @flags: socket flags (%SOCK_ASYNC_NOSPACE, etc)
 *  @ops: protocol specific socket operations
 *  @file: File back pointer for gc
 *  @sk: internal networking protocol agnostic socket representation
 *  @wq: wait queue for several uses
 */
struct socket {
	socket_state		state;

	kmemcheck_bitfield_begin(type);
	short			type;
	kmemcheck_bitfield_end(type);

	unsigned long		flags;

	struct socket_wq __rcu	*wq;

	struct file		*file;
	struct sock		*sk;
	const struct proto_ops	*ops;
};

struct vm_area_struct;
struct page;
struct kiocb;
struct sockaddr;
struct msghdr;
struct module;

struct proto_ops {
	int		family;
	struct module	*owner;
	int		(*release)   (struct socket *sock);
	int		(*bind)	     (struct socket *sock,
				      struct sockaddr *myaddr,
				      int sockaddr_len);
	int		(*connect)   (struct socket *sock,
				      struct sockaddr *vaddr,
				      int sockaddr_len, int flags);
	int		(*socketpair)(struct socket *sock1,
				      struct socket *sock2);
	int		(*accept)    (struct socket *sock,
				      struct socket *newsock, int flags);
	int		(*getname)   (struct socket *sock,
				      struct sockaddr *addr,
				      int *sockaddr_len, int peer);
	unsigned int	(*poll)	     (struct file *file, struct socket *sock,
				      struct poll_table_struct *wait);
	int		(*ioctl)     (struct socket *sock, unsigned int cmd,
				      unsigned long arg);
#ifdef CONFIG_COMPAT
	int	 	(*compat_ioctl) (struct socket *sock, unsigned int cmd,
				      unsigned long arg);
#endif
	int		(*listen)    (struct socket *sock, int len);
	int		(*shutdown)  (struct socket *sock, int flags);
	int		(*setsockopt)(struct socket *sock, int level,
				      int optname, char __user *optval, unsigned int optlen);
	int		(*getsockopt)(struct socket *sock, int level,
				      int optname, char __user *optval, int __user *optlen);
#ifdef CONFIG_COMPAT
	int		(*compat_setsockopt)(struct socket *sock, int level,
				      int optname, char __user *optval, unsigned int optlen);
	int		(*compat_getsockopt)(struct socket *sock, int level,
				      int optname, char __user *optval, int __user *optlen);
#endif
	int		(*sendmsg)   (struct kiocb *iocb, struct socket *sock,
				      struct msghdr *m, size_t total_len);
	/* Notes for implementing recvmsg:
	 * ===============================
	 * msg->msg_namelen should get updated by the recvmsg handlers
	 * iff msg_name != NULL. It is by default 0 to prevent
	 * returning uninitialized memory to user space.  The recvfrom
	 * handlers can assume that msg.msg_name is either NULL or has
	 * a minimum size of sizeof(struct sockaddr_storage).
	 */
	int		(*recvmsg)   (struct kiocb *iocb, struct socket *sock,
				      struct msghdr *m, size_t total_len,
				      int flags);
	int		(*mmap)	     (struct file *file, struct socket *sock,
				      struct vm_area_struct * vma);
	ssize_t		(*sendpage)  (struct socket *sock, struct page *page,
				      int offset, size_t size, int flags);
	ssize_t 	(*splice_read)(struct socket *sock,  loff_t *ppos,
				       struct pipe_inode_info *pipe, size_t len, unsigned int flags);
	int		(*set_peek_off)(struct sock *sk, int val);
};

#define DECLARE_SOCKADDR(type, dst, src)	\
	type dst = ({ __sockaddr_check_size(sizeof(*dst)); (type) src; })

struct net_proto_family {
	int		family;
	int		(*create)(struct net *net, struct socket *sock,
				  int protocol, int kern);
	struct module	*owner;
};

struct iovec;
struct kvec;

enum {
	SOCK_WAKE_IO,
	SOCK_WAKE_WAITD,
	SOCK_WAKE_SPACE,
	SOCK_WAKE_URG,
};

int sock_wake_async(struct socket *sk, int how, int band);
int sock_register(const struct net_proto_family *fam);
void sock_unregister(int family);
int __sock_create(struct net *net, int family, int type, int proto,
		  struct socket **res, int kern);
int sock_create(int family, int type, int proto, struct socket **res);
int sock_create_kern(int family, int type, int proto, struct socket **res);
int sock_create_lite(int family, int type, int proto, struct socket **res);
void sock_release(struct socket *sock);
int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len);
int sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
		 int flags);
struct file *sock_alloc_file(struct socket *sock, int flags, const char *dname);
struct socket *sockfd_lookup(int fd, int *err);
struct socket *sock_from_file(struct file *file, int *err);
#define		     sockfd_put(sock) fput(sock->file)
int net_ratelimit(void);

#define net_ratelimited_function(function, ...)			\
do {								\
	if (net_ratelimit())					\
		function(__VA_ARGS__);				\
} while (0)

#define net_emerg_ratelimited(fmt, ...)				\
	net_ratelimited_function(pr_emerg, fmt, ##__VA_ARGS__)
#define net_alert_ratelimited(fmt, ...)				\
	net_ratelimited_function(pr_alert, fmt, ##__VA_ARGS__)
#define net_crit_ratelimited(fmt, ...)				\
	net_ratelimited_function(pr_crit, fmt, ##__VA_ARGS__)
#define net_err_ratelimited(fmt, ...)				\
	net_ratelimited_function(pr_err, fmt, ##__VA_ARGS__)
#define net_notice_ratelimited(fmt, ...)			\
	net_ratelimited_function(pr_notice, fmt, ##__VA_ARGS__)
#define net_warn_ratelimited(fmt, ...)				\
	net_ratelimited_function(pr_warn, fmt, ##__VA_ARGS__)
#define net_info_ratelimited(fmt, ...)				\
	net_ratelimited_function(pr_info, fmt, ##__VA_ARGS__)
#define net_dbg_ratelimited(fmt, ...)				\
	net_ratelimited_function(pr_debug, fmt, ##__VA_ARGS__)

bool __net_get_random_once(void *buf, int nbytes, bool *done,
			   struct static_key *done_key);

#define net_get_random_once(buf, nbytes)				\
	({								\
		bool ___ret = false;					\
		static bool ___done = false;				\
		static struct static_key ___once_key =			\
			STATIC_KEY_INIT_TRUE;				\
		if (static_key_true(&___once_key))			\
			___ret = __net_get_random_once(buf,		\
						       nbytes,		\
						       &___done,	\
						       &___once_key);	\
		___ret;							\
	})

int kernel_sendmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec,
		   size_t num, size_t len);
int kernel_recvmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec,
		   size_t num, size_t len, int flags);

int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen);
int kernel_listen(struct socket *sock, int backlog);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
		   int flags);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
		       int *addrlen);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
		       int *addrlen);
int kernel_getsockopt(struct socket *sock, int level, int optname, char *optval,
		      int *optlen);
int kernel_setsockopt(struct socket *sock, int level, int optname, char *optval,
		      unsigned int optlen);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
		    size_t size, int flags);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how);

#define MODULE_ALIAS_NETPROTO(proto) \
	MODULE_ALIAS("net-pf-" __stringify(proto))

#define MODULE_ALIAS_NET_PF_PROTO(pf, proto) \
	MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto))

#define MODULE_ALIAS_NET_PF_PROTO_TYPE(pf, proto, type) \
	MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto) \
		     "-type-" __stringify(type))

#define MODULE_ALIAS_NET_PF_PROTO_NAME(pf, proto, name) \
	MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto) \
		     name)
#endif	/* _LINUX_NET_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* NET An implementation of the SOCKET network access protocol.
	3	* This is the master header file for the Linux NET layer,
	4	* or, in plain English: the networking handling part of the
	5	* kernel.
	6	*
	7	* Version: @(#)net.h 1.0.3 05/25/93
	8	*
	9	* Authors: Orest Zborowski, <obz@Kodak.COM>
02c30a84	10	* Ross Biro
1da177e4 LT	11	* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
	12	*
	13	* This program is free software; you can redistribute it and/or
	14	* modify it under the terms of the GNU General Public License
	15	* as published by the Free Software Foundation; either version
	16	* 2 of the License, or (at your option) any later version.
	17	*/
	18	#ifndef _LINUX_NET_H
	19	#define _LINUX_NET_H
	20
eacf17bd	21	#include <linux/stringify.h>
cb4db4c2	22	#include <linux/random.h>
5770a3fb DW	23	#include <linux/wait.h>
5770a3fb DW	24	#include <linux/fcntl.h> /* For O_CLOEXEC and O_NONBLOCK */
29a020d3	25	#include <linux/kmemcheck.h>
43815482	26	#include <linux/rcupdate.h>
c68c7f5a	27	#include <linux/jump_label.h>
607ca46e	28	#include <uapi/linux/net.h>
5770a3fb DW	29
	30	struct poll_table_struct;
	31	struct pipe_inode_info;
	32	struct inode;
56b31d1c	33	struct file;
5770a3fb	34	struct net;
1da177e4 LT	35
	36	#define SOCK_ASYNC_NOSPACE 0
	37	#define SOCK_ASYNC_WAITDATA 1
	38	#define SOCK_NOSPACE 2
	39	#define SOCK_PASSCRED 3
877ce7c1	40	#define SOCK_PASSSEC 4
b09e786b	41	#define SOCK_EXTERNALLY_ALLOCATED 5
1da177e4 LT	42
1da177e4 LT	43	#ifndef ARCH_HAS_SOCKET_TYPES
4dc3b16b PP	44	/**
	45	* enum sock_type - Socket types
	46	* @SOCK_STREAM: stream (connection) socket
	47	* @SOCK_DGRAM: datagram (conn.less) socket
	48	* @SOCK_RAW: raw socket
	49	* @SOCK_RDM: reliably-delivered message
	50	* @SOCK_SEQPACKET: sequential packet socket
8f2709b5	51	* @SOCK_DCCP: Datagram Congestion Control Protocol socket
4dc3b16b PP	52	* @SOCK_PACKET: linux specific way of getting packets at the dev level.
	53	* For writing rarp and other similar things on the user level.
	54	*
1da177e4 LT	55	* When adding some new socket type please
	56	* grep ARCH_HAS_SOCKET_TYPE include/asm-* /socket.h, at least MIPS
	57	* overrides this enum for binary compat reasons.
1da177e4 LT	58	*/
	59	enum sock_type {
	60	SOCK_STREAM = 1,
	61	SOCK_DGRAM = 2,
	62	SOCK_RAW = 3,
	63	SOCK_RDM = 4,
	64	SOCK_SEQPACKET = 5,
7c657876	65	SOCK_DCCP = 6,
1da177e4 LT	66	SOCK_PACKET = 10,
	67	};
	68
	69	#define SOCK_MAX (SOCK_PACKET + 1)
a677a039 UD	70	/* Mask which covers at least up to SOCK_MASK-1. The
	71	* remaining bits are used as flags. */
	72	#define SOCK_TYPE_MASK 0xf
	73
de11defe	74	/* Flags for socket, socketpair, accept4 */
a677a039	75	#define SOCK_CLOEXEC O_CLOEXEC
c019bbc6 UD	76	#ifndef SOCK_NONBLOCK
	77	#define SOCK_NONBLOCK O_NONBLOCK
	78	#endif
1da177e4 LT	79
	80	#endif /* ARCH_HAS_SOCKET_TYPES */
	81
91cf45f0	82	enum sock_shutdown_cmd {
0e9649c1 JS	83	SHUT_RD,
	84	SHUT_WR,
	85	SHUT_RDWR,
91cf45f0 TM	86	};
91cf45f0 TM	87
43815482	88	struct socket_wq {
eaefd110	89	/* Note: wait MUST be first field of socket_wq */
43815482 ED	90	wait_queue_head_t wait;
	91	struct fasync_struct *fasync_list;
	92	struct rcu_head rcu;
	93	} ____cacheline_aligned_in_smp;
	94
1da177e4 LT	95	/**
1da177e4 LT	96	* struct socket - general BSD socket
4dc3b16b	97	* @state: socket state (%SS_CONNECTED, etc)
2c693610	98	* @type: socket type (%SOCK_STREAM, etc)
4dc3b16b PP	99	* @flags: socket flags (%SOCK_ASYNC_NOSPACE, etc)
4dc3b16b PP	100	* @ops: protocol specific socket operations
4dc3b16b PP	101	* @file: File back pointer for gc
4dc3b16b PP	102	* @sk: internal networking protocol agnostic socket representation
e2aec372	103	* @wq: wait queue for several uses
1da177e4 LT	104	*/
	105	struct socket {
	106	socket_state state;
29a020d3 ED	107
29a020d3 ED	108	kmemcheck_bitfield_begin(type);
2c693610	109	short type;
29a020d3 ED	110	kmemcheck_bitfield_end(type);
29a020d3 ED	111
1da177e4	112	unsigned long flags;
43815482	113
eaefd110	114	struct socket_wq __rcu *wq;
8bdd663a	115
1da177e4 LT	116	struct file *file;
1da177e4 LT	117	struct sock *sk;
8bdd663a	118	const struct proto_ops *ops;
1da177e4 LT	119	};
	120
	121	struct vm_area_struct;
	122	struct page;
	123	struct kiocb;
	124	struct sockaddr;
	125	struct msghdr;
	126	struct module;
	127
	128	struct proto_ops {
	129	int family;
	130	struct module *owner;
	131	int (release) (struct socket sock);
	132	int (bind) (struct socket sock,
	133	struct sockaddr *myaddr,
	134	int sockaddr_len);
	135	int (connect) (struct socket sock,
	136	struct sockaddr *vaddr,
	137	int sockaddr_len, int flags);
	138	int (socketpair)(struct socket sock1,
	139	struct socket *sock2);
	140	int (accept) (struct socket sock,
	141	struct socket *newsock, int flags);
	142	int (getname) (struct socket sock,
	143	struct sockaddr *addr,
	144	int *sockaddr_len, int peer);
	145	unsigned int (poll) (struct file file, struct socket *sock,
	146	struct poll_table_struct *wait);
	147	int (ioctl) (struct socket sock, unsigned int cmd,
	148	unsigned long arg);
1621e094	149	#ifdef CONFIG_COMPAT
89bbfc95 SP	150	int (compat_ioctl) (struct socket sock, unsigned int cmd,
89bbfc95 SP	151	unsigned long arg);
1621e094	152	#endif
1da177e4 LT	153	int (listen) (struct socket sock, int len);
	154	int (shutdown) (struct socket sock, int flags);
	155	int (setsockopt)(struct socket sock, int level,
b7058842	156	int optname, char __user *optval, unsigned int optlen);
1da177e4 LT	157	int (getsockopt)(struct socket sock, int level,
1da177e4 LT	158	int optname, char __user optval, int __user optlen);
1621e094	159	#ifdef CONFIG_COMPAT
3fdadf7d	160	int (compat_setsockopt)(struct socket sock, int level,
b7058842	161	int optname, char __user *optval, unsigned int optlen);
3fdadf7d DM	162	int (compat_getsockopt)(struct socket sock, int level,
3fdadf7d DM	163	int optname, char __user optval, int __user optlen);
1621e094	164	#endif
1da177e4 LT	165	int (sendmsg) (struct kiocb iocb, struct socket *sock,
1da177e4 LT	166	struct msghdr *m, size_t total_len);
f3d33426 HFS	167	/* Notes for implementing recvmsg:
	168	* ===============================
	169	* msg->msg_namelen should get updated by the recvmsg handlers
	170	* iff msg_name != NULL. It is by default 0 to prevent
	171	* returning uninitialized memory to user space. The recvfrom
	172	* handlers can assume that msg.msg_name is either NULL or has
	173	* a minimum size of sizeof(struct sockaddr_storage).
	174	*/
1da177e4 LT	175	int (recvmsg) (struct kiocb iocb, struct socket *sock,
	176	struct msghdr *m, size_t total_len,
	177	int flags);
	178	int (mmap) (struct file file, struct socket *sock,
	179	struct vm_area_struct * vma);
	180	ssize_t (sendpage) (struct socket sock, struct page *page,
	181	int offset, size_t size, int flags);
9c55e01c JA	182	ssize_t (splice_read)(struct socket sock, loff_t *ppos,
9c55e01c JA	183	struct pipe_inode_info *pipe, size_t len, unsigned int flags);
12663bfc	184	int (set_peek_off)(struct sock sk, int val);
1da177e4 LT	185	};
1da177e4 LT	186
38bfd8f5 CG	187	#define DECLARE_SOCKADDR(type, dst, src) \
	188	type dst = ({ __sockaddr_check_size(sizeof(*dst)); (type) src; })
	189
1da177e4 LT	190	struct net_proto_family {
1da177e4 LT	191	int family;
3f378b68 EP	192	int (create)(struct net net, struct socket *sock,
3f378b68 EP	193	int protocol, int kern);
1da177e4 LT	194	struct module *owner;
	195	};
	196
	197	struct iovec;
	198	struct kvec;
	199
8d8ad9d7 PE	200	enum {
	201	SOCK_WAKE_IO,
	202	SOCK_WAKE_WAITD,
	203	SOCK_WAKE_SPACE,
	204	SOCK_WAKE_URG,
	205	};
	206
7965bd4d JP	207	int sock_wake_async(struct socket *sk, int how, int band);
	208	int sock_register(const struct net_proto_family *fam);
	209	void sock_unregister(int family);
	210	int __sock_create(struct net *net, int family, int type, int proto,
	211	struct socket **res, int kern);
	212	int sock_create(int family, int type, int proto, struct socket **res);
	213	int sock_create_kern(int family, int type, int proto, struct socket **res);
	214	int sock_create_lite(int family, int type, int proto, struct socket **res);
	215	void sock_release(struct socket *sock);
	216	int sock_sendmsg(struct socket sock, struct msghdr msg, size_t len);
	217	int sock_recvmsg(struct socket sock, struct msghdr msg, size_t size,
	218	int flags);
	219	struct file sock_alloc_file(struct socket sock, int flags, const char *dname);
	220	struct socket sockfd_lookup(int fd, int err);
	221	struct socket sock_from_file(struct file file, int *err);
1da177e4	222	#define sockfd_put(sock) fput(sock->file)
7965bd4d	223	int net_ratelimit(void);
aaa248f6	224
3a3bfb61 JP	225	#define net_ratelimited_function(function, ...) \
	226	do { \
	227	if (net_ratelimit()) \
	228	function(__VA_ARGS__); \
	229	} while (0)
	230
	231	#define net_emerg_ratelimited(fmt, ...) \
	232	net_ratelimited_function(pr_emerg, fmt, ##__VA_ARGS__)
	233	#define net_alert_ratelimited(fmt, ...) \
	234	net_ratelimited_function(pr_alert, fmt, ##__VA_ARGS__)
	235	#define net_crit_ratelimited(fmt, ...) \
	236	net_ratelimited_function(pr_crit, fmt, ##__VA_ARGS__)
	237	#define net_err_ratelimited(fmt, ...) \
	238	net_ratelimited_function(pr_err, fmt, ##__VA_ARGS__)
	239	#define net_notice_ratelimited(fmt, ...) \
	240	net_ratelimited_function(pr_notice, fmt, ##__VA_ARGS__)
	241	#define net_warn_ratelimited(fmt, ...) \
	242	net_ratelimited_function(pr_warn, fmt, ##__VA_ARGS__)
	243	#define net_info_ratelimited(fmt, ...) \
	244	net_ratelimited_function(pr_info, fmt, ##__VA_ARGS__)
	245	#define net_dbg_ratelimited(fmt, ...) \
	246	net_ratelimited_function(pr_debug, fmt, ##__VA_ARGS__)
	247
a48e4292 HFS	248	bool __net_get_random_once(void buf, int nbytes, bool done,
	249	struct static_key *done_key);
	250
a48e4292 HFS	251	#define net_get_random_once(buf, nbytes) \
	252	({ \
	253	bool ___ret = false; \
	254	static bool ___done = false; \
3d440522 HFS	255	static struct static_key ___once_key = \
	256	STATIC_KEY_INIT_TRUE; \
	257	if (static_key_true(&___once_key)) \
a48e4292 HFS	258	___ret = __net_get_random_once(buf, \
	259	nbytes, \
	260	&___done, \
3d440522	261	&___once_key); \
a48e4292 HFS	262	___ret; \
	263	})
	264
7965bd4d JP	265	int kernel_sendmsg(struct socket sock, struct msghdr msg, struct kvec *vec,
	266	size_t num, size_t len);
	267	int kernel_recvmsg(struct socket sock, struct msghdr msg, struct kvec *vec,
	268	size_t num, size_t len, int flags);
1da177e4	269
7965bd4d JP	270	int kernel_bind(struct socket sock, struct sockaddr addr, int addrlen);
	271	int kernel_listen(struct socket *sock, int backlog);
	272	int kernel_accept(struct socket sock, struct socket *newsock, int flags);
	273	int kernel_connect(struct socket sock, struct sockaddr addr, int addrlen,
	274	int flags);
	275	int kernel_getsockname(struct socket sock, struct sockaddr addr,
	276	int *addrlen);
	277	int kernel_getpeername(struct socket sock, struct sockaddr addr,
	278	int *addrlen);
	279	int kernel_getsockopt(struct socket sock, int level, int optname, char optval,
	280	int *optlen);
	281	int kernel_setsockopt(struct socket sock, int level, int optname, char optval,
	282	unsigned int optlen);
	283	int kernel_sendpage(struct socket sock, struct page page, int offset,
	284	size_t size, int flags);
	285	int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg);
	286	int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how);
ac5a488e	287
1da177e4 LT	288	#define MODULE_ALIAS_NETPROTO(proto) \
	289	MODULE_ALIAS("net-pf-" __stringify(proto))
	290
4fdb3bb7 HW	291	#define MODULE_ALIAS_NET_PF_PROTO(pf, proto) \
	292	MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto))
	293
305e1e96 JD	294	#define MODULE_ALIAS_NET_PF_PROTO_TYPE(pf, proto, type) \
	295	MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto) \
	296	"-type-" __stringify(type))
	297
2033e9bf NH	298	#define MODULE_ALIAS_NET_PF_PROTO_NAME(pf, proto, name) \
	299	MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto) \
	300	name)
1da177e4	301	#endif /* _LINUX_NET_H */