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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 */