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#ifndef _LINUX_SOCKET_H
#define _LINUX_SOCKET_H

#include "ll/sys/cdefs.h"

__BEGIN_DECLS

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    */
#define AF_INET6        10      /* IP version 6                 */
#define AF_MAX          12      /* For now.. */

/* 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
#define PF_INET6        AF_INET6

#define PF_MAX          AF_MAX

/* 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_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

#define SIOCDEVPRIVATE 0x89f0

#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

__END_DECLS
#endif /* _LINUX_SOCKET_H */