bsd/netat/adsp_Options.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * dspOptions.c
  27  *
  28  * From v01.06 04/19/90 mbs
  29  *   Modified, April 9, 1997 by Tuyen Nguyen for MacOSX.
  30  */
  31
  32 #include <sys/errno.h>
  33 #include <sys/types.h>
  34 #include <sys/param.h>
  35 #include <machine/spl.h>
  36 #include <sys/systm.h>
  37 #include <sys/kernel.h>
  38 #include <sys/proc.h>
  39 #include <sys/filedesc.h>
  40 #include <sys/fcntl.h>
  41 #include <sys/mbuf.h>
  42 #include <sys/socket.h>
  43
  44 #include <netat/sysglue.h>
  45 #include <netat/appletalk.h>
  46 #include <netat/at_pcb.h>
  47 #include <netat/debug.h>
  48 #include <netat/adsp.h>
  49 #include <netat/adsp_internal.h>
  50
  51 /*
  52  * dspOptions
  53  *
  54  * INPUTS:
  55  *      --> ccbRefNum           refnum of connection end
  56  *      --> sendBlocking        send blocking threshold
  57  *      --> sendTimer           send timer interval
  58  *      --> rtmtTimer           retransmit timer interval
  59  *      --> badSeqMax           retransmit advice send threshold
  60  *      --> useCheckSum         generate DDP checksum on internet packets
  61  *
  62  * OUTPUTS:
  63  *      none
  64  *
  65  * ERRORS:
  66  *      errRefNum               bad connection refnum
  67 */
  68 int adspOptions(sp, pb) /* (DSPPBPtr pb) */
  69     CCBPtr              sp;
  70     struct adspcmd *pb;
  71 {
  72     short err;
  73
  74     if (sp == 0) {
  75         pb->ioResult = errRefNum;
  76         return EINVAL;
  77     }
  78
  79     if (pb->u.optionParams.sendBlocking)
  80         sp->sendBlocking = pb->u.optionParams.sendBlocking;
  81
  82     if (pb->u.optionParams.sendTimer)
  83         sp->sendInterval = pb->u.optionParams.sendTimer;
  84
  85     /* No longer allowed to set retransmit timer as of ADSP 1.5 */
  86     /* Use it to specify a command blocking request specific to MacOS
  87      * emulation. */
  88     if (pb->u.optionParams.rtmtTimer)
  89         sp->delay = pb->u.optionParams.rtmtTimer;
  90     KERNEL_DEBUG(DBG_ADSP_MISC, 0, sp, sp->delay, pb, pb->u.optionParams.rtmtTimer);
  91
  92     if (pb->u.optionParams.badSeqMax)
  93         sp->badSeqMax = pb->u.optionParams.badSeqMax;
  94
  95     sp->useCheckSum = pb->u.optionParams.useCheckSum;
  96     if (pb->u.optionParams.newPID)
  97         sp->pid = pb->u.optionParams.newPID;
  98     pb->ioResult = 0;
  99     adspioc_ack(0, pb->ioc, pb->gref);
 100     return 0;
 101
 102 }