darwin-xnu/bsd/netat/at_pcb.h
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   1/*
   2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3 *
   4 * @APPLE_LICENSE_HEADER_START@
   5 * 
   6 * The contents of this file constitute Original Code as defined in and
   7 * are subject to the Apple Public Source License Version 1.1 (the
   8 * "License").  You may not use this file except in compliance with the
   9 * License.  Please obtain a copy of the License at
  10 * http://www.apple.com/publicsource and read it before using this file.
  11 * 
  12 * This Original Code and all software distributed under the License are
  13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17 * License for the specific language governing rights and limitations
  18 * under the License.
  19 * 
  20 * @APPLE_LICENSE_HEADER_END@
  21 */
  22/*
  23 *      Copyright (c) 1997-1999 Apple Computer, Inc.
  24 *      All Rights Reserved.
  25 */
  26/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  27/*
  28 * Copyright (c) 1982, 1986, 1990, 1993
  29 *      The Regents of the University of California.  All rights reserved.
  30 *
  31 * Redistribution and use in source and binary forms, with or without
  32 * modification, are permitted provided that the following conditions
  33 * are met:
  34 * 1. Redistributions of source code must retain the above copyright
  35 *    notice, this list of conditions and the following disclaimer.
  36 * 2. Redistributions in binary form must reproduce the above copyright
  37 *    notice, this list of conditions and the following disclaimer in the
  38 *    documentation and/or other materials provided with the distribution.
  39 * 3. All advertising materials mentioning features or use of this software
  40 *    must display the following acknowledgement:
  41 *      This product includes software developed by the University of
  42 *      California, Berkeley and its contributors.
  43 * 4. Neither the name of the University nor the names of its contributors
  44 *    may be used to endorse or promote products derived from this software
  45 *    without specific prior written permission.
  46 *
  47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  50 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  57 * SUCH DAMAGE.
  58 */
  59
  60/* at_pcb.h */
  61#include <sys/appleapiopts.h>
  62
  63#ifdef __APPLE_API_OBSOLETE
  64#ifdef KERNEL_PRIVATE
  65/*
  66 * Common structure pcb for internet protocol implementation.
  67 * Here are stored pointers to local and foreign host table
  68 * entries, local and foreign socket numbers, and pointers
  69 * up (to a socket structure) and down (to a protocol-specific)
  70 * control block.
  71 */
  72struct atpcb;
  73typedef struct atpcb gref_t;
  74struct atpcb {
  75        struct atpcb    *atpcb_next,    /* pointers to other pcb's */
  76                        *atpcb_prev,
  77                        *atpcb_head;    /* pointer back to chain of atpcb's
  78                                           for this protocol */
  79        struct socket   *atpcb_socket;  /* back pointer to socket */
  80        u_char          ddptype,        /* DDP type */
  81                        lport,          /* local DDP socket */
  82                        rport;          /* remote DDP socket */
  83        struct at_addr  laddr,          /* local net and node */
  84                        raddr;          /* remote net and node */
  85        int             ddp_flags;      /* generic IP/datagram flags */
  86        caddr_t         at_ppcb;        /* pointer to per-protocol pcb */
  87
  88  /* from the gref structure */
  89
  90        void *info;
  91        gbuf_t *ichead;
  92        gbuf_t *ictail;
  93        gbuf_t *rdhead;
  94        gbuf_t *rdtail;
  95        unsigned char   proto;          /* old-style ATPROTO_* */
  96        unsigned char  errno;
  97        unsigned short sevents;
  98        int pid;
  99        atlock_t lock;
 100        atevent_t event;
 101        atevent_t iocevent;
 102        int (*writeable)(gref_t *gref);
 103        int (*readable)(gref_t *gref);
 104        struct selinfo si;      /* BSD 4.4 selinfo structure for 
 105                                   selrecord/selwakeup */
 106};
 107
 108#define sotoatpcb(so)((struct atpcb *)(so)->so_pcb)
 109
 110/* ddp_flags */
 111#define DDPFLG_CHKSUM    0x01   /* DDP checksums to be used on this connection */
 112#define DDPFLG_SLFSND    0x02   /* packets sent to the cable-multicast address
 113                                   on this socket should be looped back */
 114#define DDPFLG_HDRINCL   0x08   /* user supplies entire DDP header */
 115#define DDPFLG_STRIPHDR 0x200   /* drop DDP header on receive (raw) */
 116
 117int     at_pcballoc(struct socket *, struct atpcb *);
 118int     at_pcbdetach(struct atpcb *);
 119int     at_pcbbind(struct atpcb *, struct sockaddr *);
 120
 121int atalk_getref(struct fileproc *, int , gref_t ** , struct proc *, int);
 122int atalk_getref_locked(struct fileproc *, int , gref_t ** , struct proc *, int);
 123
 124
 125#endif /* KERNEL_PRIVATE */
 126#endif /* __APPLE_API_OBSOLETE */
 127
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