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    /*
     * This file is subject to the terms and conditions of the GNU General Public
     * License.  See the file "COPYING" in the main directory of this archive
     * for more details.
     *
     * Copyright (C) 1997, 1999, 2000, 2001 Ralf Baechle
     * Copyright (C) 2000, 2001 Silicon Graphics, Inc.
     */
    #ifndef _ASM_SOCKET_H
    #define _ASM_SOCKET_H
    
    #include <asm/sockios.h>
    
    /*
     * For setsockopt(2)
     *
     * This defines are ABI conformant as far as Linux supports these ...
     */
    #define SOL_SOCKET	0xffff
    
    #define SO_DEBUG	0x0001	/* Record debugging information.  */
    #define SO_REUSEADDR	0x0004	/* Allow reuse of local addresses.  */
    #define SO_KEEPALIVE	0x0008	/* Keep connections alive and send
    				   SIGPIPE when they die.  */
    #define SO_DONTROUTE	0x0010	/* Don't do local routing.  */
    #define SO_BROADCAST	0x0020	/* Allow transmission of
    				   broadcast messages.  */
    #define SO_LINGER	0x0080	/* Block on close of a reliable
    				   socket to transmit pending data.  */
    #define SO_OOBINLINE 0x0100	/* Receive out-of-band data in-band.  */
    #if 0
    To add: #define SO_REUSEPORT 0x0200	/* Allow local address and port reuse.  */
    #endif
    
    #define SO_TYPE		0x1008	/* Compatible name for SO_STYLE.  */
    #define SO_STYLE	SO_TYPE	/* Synonym */
    #define SO_ERROR	0x1007	/* get error status and clear */
    #define SO_SNDBUF	0x1001	/* Send buffer size. */
    #define SO_RCVBUF	0x1002	/* Receive buffer. */
    #define SO_SNDLOWAT	0x1003	/* send low-water mark */
    #define SO_RCVLOWAT	0x1004	/* receive low-water mark */
    #define SO_SNDTIMEO	0x1005	/* send timeout */
    #define SO_RCVTIMEO 	0x1006	/* receive timeout */
    #define SO_ACCEPTCONN	0x1009
    
    #define SO_PROTOCOL	0x1028	/* protocol type */
    
    #define SO_DOMAIN	0x1029	/* domain/socket family */
    
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    /* linux-specific, might as well be the same as on i386 */
    #define SO_NO_CHECK	11
    #define SO_PRIORITY	12
    #define SO_BSDCOMPAT	14
    
    #define SO_PASSCRED	17
    #define SO_PEERCRED	18
    
    /* Security levels - as per NRL IPv6 - don't actually do anything */
    #define SO_SECURITY_AUTHENTICATION		22
    #define SO_SECURITY_ENCRYPTION_TRANSPORT	23
    #define SO_SECURITY_ENCRYPTION_NETWORK		24
    
    #define SO_BINDTODEVICE		25
    
    /* Socket filtering */
    #define SO_ATTACH_FILTER        26
    #define SO_DETACH_FILTER        27
    
    #define SO_PEERNAME             28
    #define SO_TIMESTAMP		29
    #define SCM_TIMESTAMP		SO_TIMESTAMP
    
    #define SO_PEERSEC		30
    
    #define SO_SNDBUFFORCE		31
    #define SO_RCVBUFFORCE		33
    
    #define SO_PASSSEC		34
    
    #define SO_TIMESTAMPNS		35
    #define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
    
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    #define SO_TIMESTAMPING		37
    #define SCM_TIMESTAMPING	SO_TIMESTAMPING
    
    
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    #ifdef __KERNEL__
    
    /** sock_type - Socket types
     *
     * Please notice that for binary compat reasons MIPS has to
     * override the enum sock_type in include/linux/net.h, so
     * we define ARCH_HAS_SOCKET_TYPES here.
     *
     * @SOCK_DGRAM - datagram (conn.less) socket
     * @SOCK_STREAM - stream (connection) socket
     * @SOCK_RAW - raw socket
     * @SOCK_RDM - reliably-delivered message
    
     * @SOCK_SEQPACKET - sequential packet socket
    
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     * @SOCK_PACKET - linux specific way of getting packets at the dev level.
     *		  For writing rarp and other similar things on the user level.
     */
    enum sock_type {
    	SOCK_DGRAM	= 1,
    	SOCK_STREAM	= 2,
    	SOCK_RAW	= 3,
    	SOCK_RDM	= 4,
    	SOCK_SEQPACKET	= 5,
    
    	SOCK_DCCP	= 6,
    
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    	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, paccept */
    #define SOCK_CLOEXEC	O_CLOEXEC
    #define SOCK_NONBLOCK	O_NONBLOCK
    
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    #define ARCH_HAS_SOCKET_TYPES 1
    
    #endif /* __KERNEL__ */
    
    #endif /* _ASM_SOCKET_H */