[linux.git] / include / linux / socket.h

#ifndef _LINUX_SOCKET_H
#define _LINUX_SOCKET_H

/*
 * Desired design of maximum size and alignment (see RFC2553)
 */
#define _K_SS_MAXSIZE	128	/* Implementation specific max size */
#define _K_SS_ALIGNSIZE	(__alignof__ (struct sockaddr *))
				/* Implementation specific desired alignment */

struct __kernel_sockaddr_storage {
	unsigned short	ss_family;		/* address family */
	/* Following field(s) are implementation specific */
	char		__data[_K_SS_MAXSIZE - sizeof(unsigned short)];
				/* space to achieve desired size, */
				/* _SS_MAXSIZE value minus size of ss_family */
} __attribute__ ((aligned(_K_SS_ALIGNSIZE)));	/* force desired alignment */

#ifdef __KERNEL__

#include <asm/socket.h>			/* arch-dependent defines	*/
#include <linux/sockios.h>		/* the SIOCxxx I/O controls	*/
#include <linux/uio.h>			/* iovec support		*/
#include <linux/types.h>		/* pid_t			*/
#include <linux/compiler.h>		/* __user			*/

#define __sockaddr_check_size(size)	\
	BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage)))

#ifdef __KERNEL__
# ifdef CONFIG_PROC_FS
struct seq_file;
extern void socket_seq_show(struct seq_file *seq);
# endif
#endif /* __KERNEL__ */

typedef unsigned short	sa_family_t;

/*
 *	1003.1g requires sa_family_t and that sa_data is char.
 */
 
struct sockaddr {
	sa_family_t	sa_family;	/* address family, AF_xxx	*/
	char		sa_data[14];	/* 14 bytes of protocol address	*/
};

struct linger {
	int		l_onoff;	/* Linger active		*/
	int		l_linger;	/* How long to linger for	*/
};

#define sockaddr_storage __kernel_sockaddr_storage

/*
 *	As we do 4.4BSD message passing we use a 4.4BSD message passing
 *	system, not 4.3. Thus msg_accrights(len) are now missing. They
 *	belong in an obscure libc emulation or the bin.
 */
 
struct msghdr {
	void	*	msg_name;	/* Socket name			*/
	int		msg_namelen;	/* Length of name		*/
	struct iovec *	msg_iov;	/* Data blocks			*/
	__kernel_size_t	msg_iovlen;	/* Number of blocks		*/
	void 	*	msg_control;	/* Per protocol magic (eg BSD file descriptor passing) */
	__kernel_size_t	msg_controllen;	/* Length of cmsg list */
	unsigned	msg_flags;
};

/* For recvmmsg/sendmmsg */
struct mmsghdr {
	struct msghdr   msg_hdr;
	unsigned        msg_len;
};

/*
 *	POSIX 1003.1g - ancillary data object information
 *	Ancillary data consits of a sequence of pairs of
 *	(cmsghdr, cmsg_data[])
 */

struct cmsghdr {
	__kernel_size_t	cmsg_len;	/* data byte count, including hdr */
        int		cmsg_level;	/* originating protocol */
        int		cmsg_type;	/* protocol-specific type */
};

/*
 *	Ancilliary data object information MACROS
 *	Table 5-14 of POSIX 1003.1g
 */

#define __CMSG_NXTHDR(ctl, len, cmsg) __cmsg_nxthdr((ctl),(len),(cmsg))
#define CMSG_NXTHDR(mhdr, cmsg) cmsg_nxthdr((mhdr), (cmsg))

#define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) )

#define CMSG_DATA(cmsg)	((void *)((char *)(cmsg) + CMSG_ALIGN(sizeof(struct cmsghdr))))
#define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len))
#define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))

#define __CMSG_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr) ? \
				  (struct cmsghdr *)(ctl) : \
				  (struct cmsghdr *)NULL)
#define CMSG_FIRSTHDR(msg)	__CMSG_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen)
#define CMSG_OK(mhdr, cmsg) ((cmsg)->cmsg_len >= sizeof(struct cmsghdr) && \
			     (cmsg)->cmsg_len <= (unsigned long) \
			     ((mhdr)->msg_controllen - \
			      ((char *)(cmsg) - (char *)(mhdr)->msg_control)))

/*
 *	Get the next cmsg header
 *
 *	PLEASE, do not touch this function. If you think, that it is
 *	incorrect, grep kernel sources and think about consequences
 *	before trying to improve it.
 *
 *	Now it always returns valid, not truncated ancillary object
 *	HEADER. But caller still MUST check, that cmsg->cmsg_len is
 *	inside range, given by msg->msg_controllen before using
 *	ancillary object DATA.				--ANK (980731)
 */
 
static inline struct cmsghdr * __cmsg_nxthdr(void *__ctl, __kernel_size_t __size,
					       struct cmsghdr *__cmsg)
{
	struct cmsghdr * __ptr;

	__ptr = (struct cmsghdr*)(((unsigned char *) __cmsg) +  CMSG_ALIGN(__cmsg->cmsg_len));
	if ((unsigned long)((char*)(__ptr+1) - (char *) __ctl) > __size)
		return (struct cmsghdr *)0;

	return __ptr;
}

static inline struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr *__cmsg)
{
	return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg);
}

/* "Socket"-level control message types: */

#define	SCM_RIGHTS	0x01		/* rw: access rights (array of int) */
#define SCM_CREDENTIALS 0x02		/* rw: struct ucred		*/
#define SCM_SECURITY	0x03		/* rw: security label		*/

struct ucred {
	__u32	pid;
	__u32	uid;
	__u32	gid;
};

/* Supported address families. */
#define AF_UNSPEC	0
#define AF_UNIX		1	/* Unix domain sockets 		*/
#define AF_LOCAL	1	/* POSIX name for AF_UNIX	*/
#define AF_INET		2	/* Internet IP Protocol 	*/
#define AF_AX25		3	/* Amateur Radio AX.25 		*/
#define AF_IPX		4	/* Novell IPX 			*/
#define AF_APPLETALK	5	/* AppleTalk DDP 		*/
#define AF_NETROM	6	/* Amateur Radio NET/ROM 	*/
#define AF_BRIDGE	7	/* Multiprotocol bridge 	*/
#define AF_ATMPVC	8	/* ATM PVCs			*/
#define AF_X25		9	/* Reserved for X.25 project 	*/
#define AF_INET6	10	/* IP version 6			*/
#define AF_ROSE		11	/* Amateur Radio X.25 PLP	*/
#define AF_DECnet	12	/* Reserved for DECnet project	*/
#define AF_NETBEUI	13	/* Reserved for 802.2LLC project*/
#define AF_SECURITY	14	/* Security callback pseudo AF */
#define AF_KEY		15      /* PF_KEY key management API */
#define AF_NETLINK	16
#define AF_ROUTE	AF_NETLINK /* Alias to emulate 4.4BSD */
#define AF_PACKET	17	/* Packet family		*/
#define AF_ASH		18	/* Ash				*/
#define AF_ECONET	19	/* Acorn Econet			*/
#define AF_ATMSVC	20	/* ATM SVCs			*/
#define AF_RDS		21	/* RDS sockets 			*/
#define AF_SNA		22	/* Linux SNA Project (nutters!) */
#define AF_IRDA		23	/* IRDA sockets			*/
#define AF_PPPOX	24	/* PPPoX sockets		*/
#define AF_WANPIPE	25	/* Wanpipe API Sockets */
#define AF_LLC		26	/* Linux LLC			*/
#define AF_CAN		29	/* Controller Area Network      */
#define AF_TIPC		30	/* TIPC sockets			*/
#define AF_BLUETOOTH	31	/* Bluetooth sockets 		*/
#define AF_IUCV		32	/* IUCV sockets			*/
#define AF_RXRPC	33	/* RxRPC sockets 		*/
#define AF_ISDN		34	/* mISDN sockets 		*/
#define AF_PHONET	35	/* Phonet sockets		*/
#define AF_IEEE802154	36	/* IEEE802154 sockets		*/
#define AF_CAIF		37	/* CAIF sockets			*/
#define AF_MAX		38	/* For now.. */

/* Protocol families, same as address families. */
#define PF_UNSPEC	AF_UNSPEC
#define PF_UNIX		AF_UNIX
#define PF_LOCAL	AF_LOCAL
#define PF_INET		AF_INET
#define PF_AX25		AF_AX25
#define PF_IPX		AF_IPX
#define PF_APPLETALK	AF_APPLETALK
#define	PF_NETROM	AF_NETROM
#define PF_BRIDGE	AF_BRIDGE
#define PF_ATMPVC	AF_ATMPVC
#define PF_X25		AF_X25
#define PF_INET6	AF_INET6
#define PF_ROSE		AF_ROSE
#define PF_DECnet	AF_DECnet
#define PF_NETBEUI	AF_NETBEUI
#define PF_SECURITY	AF_SECURITY
#define PF_KEY		AF_KEY
#define PF_NETLINK	AF_NETLINK
#define PF_ROUTE	AF_ROUTE
#define PF_PACKET	AF_PACKET
#define PF_ASH		AF_ASH
#define PF_ECONET	AF_ECONET
#define PF_ATMSVC	AF_ATMSVC
#define PF_RDS		AF_RDS
#define PF_SNA		AF_SNA
#define PF_IRDA		AF_IRDA
#define PF_PPPOX	AF_PPPOX
#define PF_WANPIPE	AF_WANPIPE
#define PF_LLC		AF_LLC
#define PF_CAN		AF_CAN
#define PF_TIPC		AF_TIPC
#define PF_BLUETOOTH	AF_BLUETOOTH
#define PF_IUCV		AF_IUCV
#define PF_RXRPC	AF_RXRPC
#define PF_ISDN		AF_ISDN
#define PF_PHONET	AF_PHONET
#define PF_IEEE802154	AF_IEEE802154
#define PF_CAIF		AF_CAIF
#define PF_MAX		AF_MAX

/* Maximum queue length specifiable by listen.  */
#define SOMAXCONN	128

/* Flags we can use with send/ and recv. 
   Added those for 1003.1g not all are supported yet
 */
 
#define MSG_OOB		1
#define MSG_PEEK	2
#define MSG_DONTROUTE	4
#define MSG_TRYHARD     4       /* Synonym for MSG_DONTROUTE for DECnet */
#define MSG_CTRUNC	8
#define MSG_PROBE	0x10	/* Do not send. Only probe path f.e. for MTU */
#define MSG_TRUNC	0x20
#define MSG_DONTWAIT	0x40	/* Nonblocking io		 */
#define MSG_EOR         0x80	/* End of record */
#define MSG_WAITALL	0x100	/* Wait for a full request */
#define MSG_FIN         0x200
#define MSG_SYN		0x400
#define MSG_CONFIRM	0x800	/* Confirm path validity */
#define MSG_RST		0x1000
#define MSG_ERRQUEUE	0x2000	/* Fetch message from error queue */
#define MSG_NOSIGNAL	0x4000	/* Do not generate SIGPIPE */
#define MSG_MORE	0x8000	/* Sender will send more */
#define MSG_WAITFORONE	0x10000	/* recvmmsg(): block until 1+ packets avail */

#define MSG_EOF         MSG_FIN

#define MSG_CMSG_CLOEXEC 0x40000000	/* Set close_on_exit for file
					   descriptor received through
					   SCM_RIGHTS */
#if defined(CONFIG_COMPAT)
#define MSG_CMSG_COMPAT	0x80000000	/* This message needs 32 bit fixups */
#else
#define MSG_CMSG_COMPAT	0		/* We never have 32 bit fixups */
#endif


/* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */
#define SOL_IP		0
/* #define SOL_ICMP	1	No-no-no! Due to Linux :-) we cannot use SOL_ICMP=1 */
#define SOL_TCP		6
#define SOL_UDP		17
#define SOL_IPV6	41
#define SOL_ICMPV6	58
#define SOL_SCTP	132
#define SOL_UDPLITE	136     /* UDP-Lite (RFC 3828) */
#define SOL_RAW		255
#define SOL_IPX		256
#define SOL_AX25	257
#define SOL_ATALK	258
#define SOL_NETROM	259
#define SOL_ROSE	260
#define SOL_DECNET	261
#define	SOL_X25		262
#define SOL_PACKET	263
#define SOL_ATM		264	/* ATM layer (cell level) */
#define SOL_AAL		265	/* ATM Adaption Layer (packet level) */
#define SOL_IRDA        266
#define SOL_NETBEUI	267
#define SOL_LLC		268
#define SOL_DCCP	269
#define SOL_NETLINK	270
#define SOL_TIPC	271
#define SOL_RXRPC	272
#define SOL_PPPOL2TP	273
#define SOL_BLUETOOTH	274
#define SOL_PNPIPE	275
#define SOL_RDS		276
#define SOL_IUCV	277
#define SOL_CAIF	278

/* IPX options */
#define IPX_TYPE	1

#ifdef __KERNEL__
extern int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len);
extern int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov,
			       int offset, int len);
extern int csum_partial_copy_fromiovecend(unsigned char *kdata, 
					  struct iovec *iov, 
					  int offset, 
					  unsigned int len, __wsum *csump);

extern int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address, int mode);
extern int memcpy_toiovec(struct iovec *v, unsigned char *kdata, int len);
extern int memcpy_toiovecend(const struct iovec *v, unsigned char *kdata,
			     int offset, int len);
extern int move_addr_to_user(struct sockaddr *kaddr, int klen, void __user *uaddr, int __user *ulen);
extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr *kaddr);
extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);

struct timespec;

extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen,
			  unsigned int flags, struct timespec *timeout);
#endif
#endif /* not kernel and not glibc */
#endif /* _LINUX_SOCKET_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_SOCKET_H
	2	#define _LINUX_SOCKET_H
	3
	4	/*
	5	* Desired design of maximum size and alignment (see RFC2553)
	6	*/
	7	#define _K_SS_MAXSIZE 128 /* Implementation specific max size */
	8	#define _K_SS_ALIGNSIZE (__alignof__ (struct sockaddr *))
	9	/* Implementation specific desired alignment */
	10
	11	struct __kernel_sockaddr_storage {
	12	unsigned short ss_family; /* address family */
	13	/* Following field(s) are implementation specific */
	14	char __data[_K_SS_MAXSIZE - sizeof(unsigned short)];
	15	/* space to achieve desired size, */
	16	/* _SS_MAXSIZE value minus size of ss_family */
	17	} __attribute__ ((aligned(_K_SS_ALIGNSIZE))); /* force desired alignment */
	18
9c501935	19	#ifdef __KERNEL__
1da177e4	20
1da177e4 LT	21	#include <asm/socket.h> /* arch-dependent defines */
	22	#include <linux/sockios.h> /* the SIOCxxx I/O controls */
	23	#include <linux/uio.h> /* iovec support */
	24	#include <linux/types.h> /* pid_t */
	25	#include <linux/compiler.h> /* __user */
	26
38bfd8f5 CG	27	#define __sockaddr_check_size(size) \
	28	BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage)))
	29
7d7dc0d6 JSR	30	#ifdef __KERNEL__
7d7dc0d6 JSR	31	# ifdef CONFIG_PROC_FS
20380731 ACM	32	struct seq_file;
20380731 ACM	33	extern void socket_seq_show(struct seq_file *seq);
7d7dc0d6 JSR	34	# endif
7d7dc0d6 JSR	35	#endif /* __KERNEL__ */
20380731	36
1da177e4 LT	37	typedef unsigned short sa_family_t;
	38
	39	/*
	40	* 1003.1g requires sa_family_t and that sa_data is char.
	41	*/
	42
	43	struct sockaddr {
	44	sa_family_t sa_family; /* address family, AF_xxx */
	45	char sa_data[14]; /* 14 bytes of protocol address */
	46	};
	47
	48	struct linger {
	49	int l_onoff; /* Linger active */
	50	int l_linger; /* How long to linger for */
	51	};
	52
	53	#define sockaddr_storage __kernel_sockaddr_storage
	54
	55	/*
	56	* As we do 4.4BSD message passing we use a 4.4BSD message passing
	57	* system, not 4.3. Thus msg_accrights(len) are now missing. They
	58	* belong in an obscure libc emulation or the bin.
	59	*/
	60
	61	struct msghdr {
	62	void * msg_name; /* Socket name */
	63	int msg_namelen; /* Length of name */
	64	struct iovec * msg_iov; /* Data blocks */
	65	__kernel_size_t msg_iovlen; /* Number of blocks */
	66	void * msg_control; /* Per protocol magic (eg BSD file descriptor passing) */
	67	__kernel_size_t msg_controllen; /* Length of cmsg list */
	68	unsigned msg_flags;
	69	};
	70
a2e27255 ACM	71	/* For recvmmsg/sendmmsg */
	72	struct mmsghdr {
	73	struct msghdr msg_hdr;
	74	unsigned msg_len;
	75	};
	76
1da177e4 LT	77	/*
	78	* POSIX 1003.1g - ancillary data object information
	79	* Ancillary data consits of a sequence of pairs of
	80	* (cmsghdr, cmsg_data[])
	81	*/
	82
	83	struct cmsghdr {
	84	__kernel_size_t cmsg_len; /* data byte count, including hdr */
	85	int cmsg_level; /* originating protocol */
	86	int cmsg_type; /* protocol-specific type */
	87	};
	88
	89	/*
	90	* Ancilliary data object information MACROS
	91	* Table 5-14 of POSIX 1003.1g
	92	*/
	93
	94	#define __CMSG_NXTHDR(ctl, len, cmsg) __cmsg_nxthdr((ctl),(len),(cmsg))
	95	#define CMSG_NXTHDR(mhdr, cmsg) cmsg_nxthdr((mhdr), (cmsg))
	96
	97	#define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) )
	98
	99	#define CMSG_DATA(cmsg) ((void )((char )(cmsg) + CMSG_ALIGN(sizeof(struct cmsghdr))))
	100	#define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len))
	101	#define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
	102
	103	#define __CMSG_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr) ? \
	104	(struct cmsghdr *)(ctl) : \
	105	(struct cmsghdr *)NULL)
	106	#define CMSG_FIRSTHDR(msg) __CMSG_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen)
	107	#define CMSG_OK(mhdr, cmsg) ((cmsg)->cmsg_len >= sizeof(struct cmsghdr) && \
	108	(cmsg)->cmsg_len <= (unsigned long) \
	109	((mhdr)->msg_controllen - \
	110	((char )(cmsg) - (char )(mhdr)->msg_control)))
	111
1da177e4 LT	112	/*
	113	* Get the next cmsg header
	114	*
	115	* PLEASE, do not touch this function. If you think, that it is
	116	* incorrect, grep kernel sources and think about consequences
	117	* before trying to improve it.
	118	*
	119	* Now it always returns valid, not truncated ancillary object
	120	* HEADER. But caller still MUST check, that cmsg->cmsg_len is
	121	* inside range, given by msg->msg_controllen before using
	122	* ancillary object DATA. --ANK (980731)
	123	*/
	124
9c501935	125	static inline struct cmsghdr * __cmsg_nxthdr(void *__ctl, __kernel_size_t __size,
1da177e4 LT	126	struct cmsghdr *__cmsg)
	127	{
	128	struct cmsghdr * __ptr;
	129
	130	__ptr = (struct cmsghdr)(((unsigned char ) __cmsg) + CMSG_ALIGN(__cmsg->cmsg_len));
	131	if ((unsigned long)((char)(__ptr+1) - (char ) __ctl) > __size)
	132	return (struct cmsghdr *)0;
	133
	134	return __ptr;
	135	}
	136
9c501935	137	static inline struct cmsghdr * cmsg_nxthdr (struct msghdr __msg, struct cmsghdr __cmsg)
1da177e4 LT	138	{
	139	return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg);
	140	}
	141
	142	/* "Socket"-level control message types: */
	143
	144	#define SCM_RIGHTS 0x01 /* rw: access rights (array of int) */
	145	#define SCM_CREDENTIALS 0x02 /* rw: struct ucred */
2c7946a7	146	#define SCM_SECURITY 0x03 /* rw: security label */
1da177e4 LT	147
	148	struct ucred {
	149	__u32 pid;
	150	__u32 uid;
	151	__u32 gid;
	152	};
	153
	154	/* Supported address families. */
	155	#define AF_UNSPEC 0
	156	#define AF_UNIX 1 /* Unix domain sockets */
	157	#define AF_LOCAL 1 /* POSIX name for AF_UNIX */
	158	#define AF_INET 2 /* Internet IP Protocol */
	159	#define AF_AX25 3 /* Amateur Radio AX.25 */
	160	#define AF_IPX 4 /* Novell IPX */
	161	#define AF_APPLETALK 5 /* AppleTalk DDP */
	162	#define AF_NETROM 6 /* Amateur Radio NET/ROM */
	163	#define AF_BRIDGE 7 /* Multiprotocol bridge */
	164	#define AF_ATMPVC 8 /* ATM PVCs */
	165	#define AF_X25 9 /* Reserved for X.25 project */
	166	#define AF_INET6 10 /* IP version 6 */
	167	#define AF_ROSE 11 /* Amateur Radio X.25 PLP */
	168	#define AF_DECnet 12 /* Reserved for DECnet project */
	169	#define AF_NETBEUI 13 /* Reserved for 802.2LLC project*/
	170	#define AF_SECURITY 14 /* Security callback pseudo AF */
	171	#define AF_KEY 15 /* PF_KEY key management API */
	172	#define AF_NETLINK 16
	173	#define AF_ROUTE AF_NETLINK /* Alias to emulate 4.4BSD */
	174	#define AF_PACKET 17 /* Packet family */
	175	#define AF_ASH 18 /* Ash */
	176	#define AF_ECONET 19 /* Acorn Econet */
	177	#define AF_ATMSVC 20 /* ATM SVCs */
8a7c4c77	178	#define AF_RDS 21 /* RDS sockets */
1da177e4 LT	179	#define AF_SNA 22 /* Linux SNA Project (nutters!) */
	180	#define AF_IRDA 23 /* IRDA sockets */
	181	#define AF_PPPOX 24 /* PPPoX sockets */
	182	#define AF_WANPIPE 25 /* Wanpipe API Sockets */
	183	#define AF_LLC 26 /* Linux LLC */
cd05acfe	184	#define AF_CAN 29 /* Controller Area Network */
b97bf3fd	185	#define AF_TIPC 30 /* TIPC sockets */
1da177e4	186	#define AF_BLUETOOTH 31 /* Bluetooth sockets */
eac3731b	187	#define AF_IUCV 32 /* IUCV sockets */
17926a79	188	#define AF_RXRPC 33 /* RxRPC sockets */
04578dd3	189	#define AF_ISDN 34 /* mISDN sockets */
bce7b154	190	#define AF_PHONET 35 /* Phonet sockets */
fcb94e42	191	#define AF_IEEE802154 36 /* IEEE802154 sockets */
70596b61 SB	192	#define AF_CAIF 37 /* CAIF sockets */
70596b61 SB	193	#define AF_MAX 38 /* For now.. */
1da177e4 LT	194
	195	/* Protocol families, same as address families. */
	196	#define PF_UNSPEC AF_UNSPEC
	197	#define PF_UNIX AF_UNIX
	198	#define PF_LOCAL AF_LOCAL
	199	#define PF_INET AF_INET
	200	#define PF_AX25 AF_AX25
	201	#define PF_IPX AF_IPX
	202	#define PF_APPLETALK AF_APPLETALK
	203	#define PF_NETROM AF_NETROM
	204	#define PF_BRIDGE AF_BRIDGE
	205	#define PF_ATMPVC AF_ATMPVC
	206	#define PF_X25 AF_X25
	207	#define PF_INET6 AF_INET6
	208	#define PF_ROSE AF_ROSE
	209	#define PF_DECnet AF_DECnet
	210	#define PF_NETBEUI AF_NETBEUI
	211	#define PF_SECURITY AF_SECURITY
	212	#define PF_KEY AF_KEY
	213	#define PF_NETLINK AF_NETLINK
	214	#define PF_ROUTE AF_ROUTE
	215	#define PF_PACKET AF_PACKET
	216	#define PF_ASH AF_ASH
	217	#define PF_ECONET AF_ECONET
	218	#define PF_ATMSVC AF_ATMSVC
8a7c4c77	219	#define PF_RDS AF_RDS
1da177e4 LT	220	#define PF_SNA AF_SNA
	221	#define PF_IRDA AF_IRDA
	222	#define PF_PPPOX AF_PPPOX
	223	#define PF_WANPIPE AF_WANPIPE
	224	#define PF_LLC AF_LLC
cd05acfe	225	#define PF_CAN AF_CAN
b97bf3fd	226	#define PF_TIPC AF_TIPC
1da177e4	227	#define PF_BLUETOOTH AF_BLUETOOTH
eac3731b	228	#define PF_IUCV AF_IUCV
17926a79	229	#define PF_RXRPC AF_RXRPC
04578dd3	230	#define PF_ISDN AF_ISDN
bce7b154	231	#define PF_PHONET AF_PHONET
fcb94e42	232	#define PF_IEEE802154 AF_IEEE802154
70596b61	233	#define PF_CAIF AF_CAIF
1da177e4 LT	234	#define PF_MAX AF_MAX
	235
	236	/* Maximum queue length specifiable by listen. */
	237	#define SOMAXCONN 128
	238
	239	/* Flags we can use with send/ and recv.
	240	Added those for 1003.1g not all are supported yet
	241	*/
	242
	243	#define MSG_OOB 1
	244	#define MSG_PEEK 2
	245	#define MSG_DONTROUTE 4
	246	#define MSG_TRYHARD 4 /* Synonym for MSG_DONTROUTE for DECnet */
	247	#define MSG_CTRUNC 8
	248	#define MSG_PROBE 0x10 /* Do not send. Only probe path f.e. for MTU */
	249	#define MSG_TRUNC 0x20
	250	#define MSG_DONTWAIT 0x40 /* Nonblocking io */
	251	#define MSG_EOR 0x80 /* End of record */
	252	#define MSG_WAITALL 0x100 /* Wait for a full request */
	253	#define MSG_FIN 0x200
	254	#define MSG_SYN 0x400
	255	#define MSG_CONFIRM 0x800 /* Confirm path validity */
	256	#define MSG_RST 0x1000
	257	#define MSG_ERRQUEUE 0x2000 /* Fetch message from error queue */
	258	#define MSG_NOSIGNAL 0x4000 /* Do not generate SIGPIPE */
	259	#define MSG_MORE 0x8000 /* Sender will send more */
71c5c159	260	#define MSG_WAITFORONE 0x10000 /* recvmmsg(): block until 1+ packets avail */
1da177e4 LT	261
	262	#define MSG_EOF MSG_FIN
	263
4a19542e UD	264	#define MSG_CMSG_CLOEXEC 0x40000000 /* Set close_on_exit for file
	265	descriptor received through
	266	SCM_RIGHTS */
1da177e4 LT	267	#if defined(CONFIG_COMPAT)
	268	#define MSG_CMSG_COMPAT 0x80000000 /* This message needs 32 bit fixups */
	269	#else
	270	#define MSG_CMSG_COMPAT 0 /* We never have 32 bit fixups */
	271	#endif
	272
	273
	274	/* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */
	275	#define SOL_IP 0
	276	/* #define SOL_ICMP 1 No-no-no! Due to Linux :-) we cannot use SOL_ICMP=1 */
	277	#define SOL_TCP 6
	278	#define SOL_UDP 17
	279	#define SOL_IPV6 41
	280	#define SOL_ICMPV6 58
	281	#define SOL_SCTP 132
ba4e58ec	282	#define SOL_UDPLITE 136 /* UDP-Lite (RFC 3828) */
1da177e4 LT	283	#define SOL_RAW 255
	284	#define SOL_IPX 256
	285	#define SOL_AX25 257
	286	#define SOL_ATALK 258
	287	#define SOL_NETROM 259
	288	#define SOL_ROSE 260
	289	#define SOL_DECNET 261
	290	#define SOL_X25 262
	291	#define SOL_PACKET 263
	292	#define SOL_ATM 264 /* ATM layer (cell level) */
	293	#define SOL_AAL 265 /* ATM Adaption Layer (packet level) */
	294	#define SOL_IRDA 266
	295	#define SOL_NETBEUI 267
	296	#define SOL_LLC 268
7c657876	297	#define SOL_DCCP 269
9a4595bc	298	#define SOL_NETLINK 270
b97bf3fd	299	#define SOL_TIPC 271
17926a79	300	#define SOL_RXRPC 272
cf14a4d0	301	#define SOL_PPPOL2TP 273
2cb3377a	302	#define SOL_BLUETOOTH 274
02a47617	303	#define SOL_PNPIPE 275
8a7c4c77	304	#define SOL_RDS 276
9d5c5d8f	305	#define SOL_IUCV 277
70596b61	306	#define SOL_CAIF 278
1da177e4 LT	307
	308	/* IPX options */
	309	#define IPX_TYPE 1
	310
	311	#ifdef __KERNEL__
	312	extern int memcpy_fromiovec(unsigned char kdata, struct iovec iov, int len);
6f26c9a7 MT	313	extern int memcpy_fromiovecend(unsigned char kdata, const struct iovec iov,
6f26c9a7 MT	314	int offset, int len);
1da177e4 LT	315	extern int csum_partial_copy_fromiovecend(unsigned char *kdata,
	316	struct iovec *iov,
	317	int offset,
44bb9363	318	unsigned int len, __wsum *csump);
1da177e4	319
230b1839	320	extern int verify_iovec(struct msghdr m, struct iovec iov, struct sockaddr *address, int mode);
1da177e4	321	extern int memcpy_toiovec(struct iovec v, unsigned char kdata, int len);
0a1ec07a MT	322	extern int memcpy_toiovecend(const struct iovec v, unsigned char kdata,
0a1ec07a MT	323	int offset, int len);
230b1839 YH	324	extern int move_addr_to_user(struct sockaddr kaddr, int klen, void __user uaddr, int __user *ulen);
230b1839 YH	325	extern int move_addr_to_kernel(void __user uaddr, int ulen, struct sockaddr kaddr);
1da177e4 LT	326	extern int put_cmsg(struct msghdr, int level, int type, int len, void data);
1da177e4 LT	327
a2e27255 ACM	328	struct timespec;
	329
	330	extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen,
	331	unsigned int flags, struct timespec *timeout);
1da177e4 LT	332	#endif
	333	#endif /* not kernel and not glibc */
	334	#endif /* _LINUX_SOCKET_H */