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#ifndef _LINUX_SOCKET_H
#define _LINUX_SOCKET_H
 
#include <asm/socket.h>			/* arch-dependent defines	*/
#include <linux/sockios.h>		/* the SIOCxxx I/O controls	*/
#include <linux/uio.h>			/* iovec support		*/
 
struct sockaddr 
{
	unsigned short	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	*/
};
 
/*
 *	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			*/
	int 		msg_iovlen;	/* Number of blocks		*/
	void 	*	msg_control;	/* Per protocol magic (eg BSD file descriptor passing) */
	int		msg_controllen;	/* Length of rights list */
	int		msg_flags;	/* 4.4 BSD item we dont use      */
};
 
/* Control Messages */
 
#define SCM_RIGHTS		1
 
/* Socket types. */
#define SOCK_STREAM	1		/* stream (connection) socket	*/
#define SOCK_DGRAM	2		/* datagram (conn.less) socket	*/
#define SOCK_RAW	3		/* raw socket			*/
#define SOCK_RDM	4		/* reliably-delivered message	*/
#define SOCK_SEQPACKET	5		/* sequential packet socket	*/
#define SOCK_PACKET	10		/* linux specific way of	*/
					/* getting packets at the dev	*/
					/* level.  For writing rarp and	*/
					/* other similar things on the	*/
					/* user level.			*/
 
/* Supported address families. */
#define AF_UNSPEC	0
#define AF_UNIX		1	/* Unix domain sockets 		*/
#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 NetROM 	*/
#define AF_BRIDGE	7	/* Multiprotocol bridge 	*/
#define AF_AAL5		8	/* Reserved for Werner's ATM 	*/
#define AF_X25		9	/* Reserved for X.25 project 	*/
#ifdef LINUX_2_1_X
#define AF_INET6	10	/* IP version 6			*/
#endif
#define AF_ROSE		11	/* Amateur Radio X.25 PLP       */
#define AF_MAX		13	/* For now.. */
#define AF_PACKET	17	/* Forward compat hook		*/
 
/* Protocol families, same as address families. */
#define PF_UNSPEC	AF_UNSPEC
#define PF_UNIX		AF_UNIX
#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_AAL5		AF_AAL5
#define PF_X25		AF_X25
#ifdef LINUX_2_1_X
#define PF_INET6	AF_INET6
#endif
#define	PF_ROSE		AF_ROSE
#define PF_MAX		AF_MAX
#define PF_PACKET	AF_PACKET
/* Maximum queue length specifiable by listen.  */
#define SOMAXCONN	128
 
/* Flags we can use with send/ and recv. */
#define MSG_OOB		1
#define MSG_PEEK	2
#define MSG_DONTROUTE	4
/*#define MSG_CTRUNC	8	- We need to support this for BSD oddments */
#define MSG_PROXY	16	/* Supply or ask second address. */
 
/* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */
#define SOL_IP		0
#define SOL_IPX		256
#define SOL_AX25	257
#define SOL_ATALK	258
#define	SOL_NETROM	259
#define	SOL_ROSE	260
#define SOL_TCP		6
#define SOL_UDP		17
 
/* IP options */
#define IP_TOS		1
#define	IPTOS_LOWDELAY		0x10
#define	IPTOS_THROUGHPUT	0x08
#define	IPTOS_RELIABILITY	0x04
#define	IPTOS_MINCOST		0x02
#define IP_TTL		2
#define IP_HDRINCL	3
#define IP_OPTIONS	4
 
#define IP_MULTICAST_IF			32
#define IP_MULTICAST_TTL 		33
#define IP_MULTICAST_LOOP 		34
#define IP_ADD_MEMBERSHIP		35
#define IP_DROP_MEMBERSHIP		36
 
/* These need to appear somewhere around here */
#define IP_DEFAULT_MULTICAST_TTL        1
#define IP_DEFAULT_MULTICAST_LOOP       1
#define IP_MAX_MEMBERSHIPS              20
 
/* IPX options */
#define IPX_TYPE	1
 
/* TCP options - this way around because someone left a set in the c library includes */
#define TCP_NODELAY	1
#define TCP_MAXSEG	2
 
/* The various priorities. */
#define SOPRI_INTERACTIVE	0
#define SOPRI_NORMAL		1
#define SOPRI_BACKGROUND	2
 
#ifdef __KERNEL__
extern void memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len);
extern int verify_iovec(struct msghdr *m, struct iovec *iov, char *address, int mode);
extern void memcpy_toiovec(struct iovec *v, unsigned char *kdata, int len);
extern int move_addr_to_user(void *kaddr, int klen, void *uaddr, int *ulen);
extern int move_addr_to_kernel(void *uaddr, int ulen, void *kaddr);
#endif
#endif /* _LINUX_SOCKET_H */