bsd/netat/adsp_Init.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  *      Copyright (c) 1990, 1996-1998 Apple Computer, Inc.
  32  *      All Rights Reserved.
  33  */
  34
  35 /* dspInit.c
  36  *
  37  * From Mike Shoemaker v01.20 06/29/90 mbs
  38  *    Modified for MP, 1996 by Tuyen Nguyen
  39  *   Modified, April 9, 1997 by Tuyen Nguyen for MacOSX.
  40  */
  41 #include <sys/errno.h>
  42 #include <sys/types.h>
  43 #include <sys/param.h>
  44 #include <machine/spl.h>
  45 #include <sys/systm.h>
  46 #include <sys/kernel.h>
  47 #include <sys/proc.h>
  48 #include <sys/filedesc.h>
  49 #include <sys/fcntl.h>
  50 #include <sys/mbuf.h>
  51 #include <sys/socket.h>
  52 #include <sys/time.h>
  53
  54 #include <netat/sysglue.h>
  55 #include <netat/appletalk.h>
  56 #include <netat/at_pcb.h>
  57 #include <netat/debug.h>
  58 #include <netat/adsp.h>
  59 #include <netat/adsp_internal.h>
  60
  61
  62 /*
  63  * InitContinue
  64  *
  65  * Handle 2nd half of code for dsp init.  We could be called directly by
  66  * the dsp Init routine, or if a socket has to be opened, we get called
  67  * by the completion routine of the dsp open socket.
  68  *
  69  * INPUTS:
  70  *              sp      The stream we're initing (not yet on list of streams)
  71  *              pb      The user's dsp Init param block
  72  *              soc The socket we're going to use
  73  * OUTPUTS:
  74  *              none
  75 */
  76 static void InitContinue(sp, pb) /* (CCBPtr sp, DSPPBPtr pb, int soc) */
  77     CCBPtr sp;
  78     struct adspcmd *pb;
  79 {
  80
  81     /* Save connection's socket # in CCB */
  82     sp->localSocket = pb->socket;
  83
  84     /*
  85      * Link the new ccb onto queue.  Must be done with interrupts off.
  86      */
  87     qAddToEnd(AT_ADSP_STREAMS, sp); /* Put on linked list of connections */
  88     return;
  89 }
  90
  91 /*
  92  * dspInit
  93  *
  94  * Create and initialize a connection end.  return ccbRefNum so that client can
  95  * reference this ccb in later calls.  The caller provides a pointer to
  96  * ccb which belongs to adsp until the connection end is removed.
  97  *
  98  * If we have to open a socket, we'll have to do an async open socket, and
  99  * finish up in the completion routine
 100  *
 101  * INPUTS:
 102  *      --> ccbPtr              Pointer to connection control block
 103  *      --> adspcmdPtr          Pointer to user request block
 104  *
 105  * OUTPUTS:
 106  *      <-- ccbRefNum           refnum assigned to this connection.
 107  *
 108  * ERRORS:
 109  *      EADDRINUSE or 0
 110  */
 111 int adspInit(sp, ap)            /* (DSPPBPtr pb) */
 112     CCBPtr sp;
 113     struct adspcmd *ap;
 114 {
 115     /*
 116      * Set connection end defaults
 117      */
 118     sp->badSeqMax = 3;          /* # of out-of-sequence packets received */
 119                                 /* until a retransmit advice packet is sent */
 120     sp->probeInterval = 6 * 30; /* 30 second probe interval */
 121     sp->rtmtInterval = 6 * 5;   /* Just a guess --- 5 seconds */
 122     sp->sendBlocking = 16;
 123     sp->sendInterval = 6;
 124     sp->badSeqMax = 3;          /* This is the default */
 125
 126     sp->ProbeTimer.type = kProbeTimerType;
 127     sp->FlushTimer.type = kFlushTimerType;
 128     sp->RetryTimer.type = kRetryTimerType;
 129     sp->AttnTimer.type  = kAttnTimerType;
 130     sp->ResetTimer.type = kResetTimerType;
 131
 132     if (ap->csCode == dspInit) { /* Only do this if not connection Listener */
 133         /*
 134          * Initialize send and receive queue.  Make sure they are the
 135          * right size
 136          */
 137         sp->rbuflen = RecvQSize;
 138         sp->rbuf_mb = 0;
 139         sp->sbuflen = SendQSize;
 140         sp->sbuf_mb = 0;
 141         sp->csbuf_mb = 0;
 142
 143         /*
 144          * Initialize send and receive defaults
 145          */
 146
 147         sp->attn_mb = 0;
 148         sp->state = sClosed;    /* Set state for connection end */
 149         /* end dspInit */
 150     } else {
 151
 152         /* dspCLInit */
 153         sp->state = sListening;               /* Set state for conn end */
 154     }      /* end dspCLInit */
 155     /*
 156      * User opens the socket, so continue with the init stuff
 157      */
 158     InitContinue(sp, ap);
 159     return(0);
 160 }
 161
 162
 163 /*
 164  * AdspBad
 165  *
 166  *
 167  * INPUTS:
 168  *      -->     ap                              Parameter block
 169  *
 170  */
 171 int AdspBad(ap)                 /* (DSPPBPtr pb) */
 172     struct adspcmd *ap;
 173 {
 174         dPrintf(D_M_ADSP, D_L_ERROR,
 175                 ("Hey! Do you have the right AuthToolbox?"));
 176         ap->ioResult = controlErr; /* Unknown csCode in the param block */
 177         return EINVAL;
 178 }