bsd/netat/aurp_cfg.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_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 License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  *      Copyright (c) 1996 Apple Computer, Inc.
  30  *
  31  *              Created April 8, 1996 by Tuyen Nguyen
  32  *   Modified, March 17, 1997 by Tuyen Nguyen for MacOSX.
  33  *
  34  *      File: cfg.c
  35  */
  36
  37 #ifdef AURP_SUPPORT
  38
  39 #define RESOLVE_DBG
  40 #include <sys/errno.h>
  41 #include <sys/types.h>
  42 #include <sys/param.h>
  43 #include <machine/spl.h>
  44 #include <sys/systm.h>
  45 #include <sys/kernel.h>
  46 #include <sys/proc.h>
  47 #include <sys/filedesc.h>
  48 #include <sys/fcntl.h>
  49 #include <sys/mbuf.h>
  50 #include <sys/socket.h>
  51 #include <sys/socketvar.h>
  52 #include <net/if.h>
  53
  54 #include <netat/sysglue.h>
  55 #include <netat/appletalk.h>
  56 #include <netat/at_pcb.h>
  57 #include <netat/at_var.h>
  58 #include <netat/routing_tables.h>
  59 #include <netat/at_pcb.h>
  60 #include <netat/aurp.h>
  61
  62 static int aurp_inited = 0;
  63 static char aurp_minor_no[4];
  64
  65 int aurp_open(gref)
  66         gref_t *gref;
  67 {
  68         extern void AURPcmdx();
  69         int i;
  70
  71         if (!aurp_inited)
  72                 aurp_inited = 1;
  73
  74         for (i=1; i < sizeof(aurp_minor_no); i++) {
  75                 if (aurp_minor_no[i] == 0) {
  76                         aurp_minor_no[i] = (char )i;
  77                         break;
  78                 }
  79         }
  80         if (i == sizeof(aurp_minor_no))
  81                 return EAGAIN;
  82         if (i == 1) {
  83                 aurp_gref = gref;
  84                 if (ddp_AURPfuncx(AURPCODE_REG, AURPcmdx, 0)) {
  85                         aurp_gref = 0;
  86                         aurp_minor_no[i] = 0;
  87                         return EPROTOTYPE;
  88                 }
  89         }
  90
  91         gref->info = (void *)&aurp_minor_no[i];
  92         return 0;
  93 }
  94
  95 int aurp_close(gref)
  96         gref_t *gref;
  97 {
  98         if (*(char *)gref->info == 1) {
  99                 aurp_gref = 0;
 100                 aurp_inited = 0;
 101                 ddp_AURPfuncx(AURPCODE_REG, 0, 0);
 102         }
 103
 104         *(char *)gref->info = 0;
 105         gref->info = 0;
 106         return 0;
 107 }
 108
 109 #endif  /* AURP_SUPPORT */