bsd/netat/adsp_Options.c

   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  * dspOptions.c
  24  *
  25  * From v01.06 04/19/90 mbs
  26  *   Modified, April 9, 1997 by Tuyen Nguyen for MacOSX.
  27  */
  28
  29 #include <sys/errno.h>
  30 #include <sys/types.h>
  31 #include <sys/param.h>
  32 #include <machine/spl.h>
  33 #include <sys/systm.h>
  34 #include <sys/kernel.h>
  35 #include <sys/proc.h>
  36 #include <sys/filedesc.h>
  37 #include <sys/fcntl.h>
  38 #include <sys/mbuf.h>
  39 #include <sys/socket.h>
  40
  41 #include <netat/sysglue.h>
  42 #include <netat/appletalk.h>
  43 #include <netat/at_pcb.h>
  44 #include <netat/debug.h>
  45 #include <netat/adsp.h>
  46 #include <netat/adsp_internal.h>
  47
  48 /*
  49  * dspOptions
  50  *
  51  * INPUTS:
  52  *      --> ccbRefNum           refnum of connection end
  53  *      --> sendBlocking        send blocking threshold
  54  *      --> sendTimer           send timer interval
  55  *      --> rtmtTimer           retransmit timer interval
  56  *      --> badSeqMax           retransmit advice send threshold
  57  *      --> useCheckSum         generate DDP checksum on internet packets
  58  *
  59  * OUTPUTS:
  60  *      none
  61  *
  62  * ERRORS:
  63  *      errRefNum               bad connection refnum
  64 */
  65 int adspOptions(sp, pb) /* (DSPPBPtr pb) */
  66     CCBPtr              sp;
  67     struct adspcmd *pb;
  68 {
  69     short err;
  70
  71     if (sp == 0) {
  72         pb->ioResult = errRefNum;
  73         return EINVAL;
  74     }
  75
  76     if (pb->u.optionParams.sendBlocking)
  77         sp->sendBlocking = pb->u.optionParams.sendBlocking;
  78
  79     if (pb->u.optionParams.sendTimer)
  80         sp->sendInterval = pb->u.optionParams.sendTimer;
  81
  82     /* No longer allowed to set retransmit timer as of ADSP 1.5 */
  83     /* Use it to specify a command blocking request specific to MacOS
  84      * emulation. */
  85     if (pb->u.optionParams.rtmtTimer)
  86         sp->delay = pb->u.optionParams.rtmtTimer;
  87     KERNEL_DEBUG(DBG_ADSP_MISC, 0, sp, sp->delay, pb, pb->u.optionParams.rtmtTimer);
  88
  89     if (pb->u.optionParams.badSeqMax)
  90         sp->badSeqMax = pb->u.optionParams.badSeqMax;
  91
  92     sp->useCheckSum = pb->u.optionParams.useCheckSum;
  93     if (pb->u.optionParams.newPID)
  94         sp->pid = pb->u.optionParams.newPID;
  95     pb->ioResult = 0;
  96     adspioc_ack(0, pb->ioc, pb->gref);
  97     return 0;
  98
  99 }