usr/src/uts/common/idmap/idmap_mod.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <sys/ddi.h>
  30 #include <sys/sunddi.h>
  31 #include <sys/modctl.h>
  32 #ifdef  DEBUG
  33 #include <sys/cmn_err.h>
  34 #endif  /* DEBUG */
  35 #include <sys/kidmap.h>
  36 #include "kidmap_priv.h"
  37
  38
  39
  40
  41 extern struct mod_ops mod_miscops;
  42
  43 static struct modlmisc misc =
  44 {
  45         &mod_miscops,
  46         "ID Mapping kernel module"
  47 };
  48
  49 static struct modlinkage linkage =
  50 {
  51         MODREV_1,
  52         (void *) &misc,
  53         NULL
  54 };
  55
  56
  57 int
  58 _init()
  59 {
  60         int i;
  61
  62         if ((i =  mod_install(&linkage)) != 0) {
  63 #ifdef  DEBUG
  64                 cmn_err(CE_WARN, "idmap: Failed to load kernel module");
  65 #endif  /* DEBUG */
  66                 return (i);
  67         }
  68
  69         if (kidmap_start() != 0) {
  70 #ifdef  DEBUG
  71                 cmn_err(CE_WARN, "idmap: Failed to start");
  72 #endif  /* DEBUG */
  73                 return (i);
  74         }
  75
  76         return (i);
  77 }
  78
  79 int
  80 _info(struct modinfo *modinfop)
  81 {
  82         return (mod_info(&linkage, modinfop));
  83 }
  84
  85 int
  86 _fini()
  87 {
  88         int i;
  89
  90         if ((i = kidmap_stop()) != 0) {
  91                 return (i);
  92         }
  93
  94         if ((i = mod_remove(&linkage)) != 0) {
  95 #ifdef  DEBUG
  96                 cmn_err(CE_WARN, "idmap: Failed to remove kernel module");
  97 #endif  /* DEBUG */
  98                 return (i);
  99         }
 100
 101         return (0);
 102 }