usr/src/cmd/fm/fmd/common/fmd_builtin.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 (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
  24  */
  25
  26 #include <fmd_module.h>
  27 #include <fmd_subr.h>
  28 #include <fmd_error.h>
  29 #include <fmd_string.h>
  30 #include <fmd_event.h>
  31 #include <fmd_builtin.h>
  32 #include <zone.h>
  33
  34 static const struct fmd_builtin _fmd_builtins[] = {
  35         { "fmd-self-diagnosis", self_init, self_fini, FMD_BUILTIN_ALLCTXT },
  36         { "sysevent-transport", sysev_init, sysev_fini,
  37                 FMD_BUILTIN_CTXT_GLOBALZONE },
  38         { NULL, NULL, NULL, 0 }
  39 };
  40
  41 static int
  42 bltin_init(fmd_module_t *mp)
  43 {
  44         const fmd_builtin_t *bp;
  45
  46         for (bp = _fmd_builtins; bp->bltin_name != NULL; bp++) {
  47                 if (strcmp(mp->mod_name, bp->bltin_name) == 0)
  48                         break;
  49         }
  50
  51         if (bp == NULL)
  52                 return (fmd_set_errno(EFMD_BLTIN_NAME));
  53
  54         if (bp->bltin_init == NULL)
  55                 return (fmd_set_errno(EFMD_BLTIN_INIT));
  56
  57         mp->mod_data = (void *)bp;
  58         (void) pthread_mutex_unlock(&mp->mod_lock);
  59
  60         /*
  61          * Call _fmd_init() in the module.  If this causes a module abort and
  62          * mod_info has been registered, unregister it on behalf of the module.
  63          */
  64         if (fmd_module_enter(mp, bp->bltin_init) != 0 && mp->mod_info != NULL)
  65                 fmd_hdl_unregister((fmd_hdl_t *)mp);
  66
  67         fmd_module_exit(mp);
  68         (void) pthread_mutex_lock(&mp->mod_lock);
  69
  70         if (mp->mod_info == NULL)
  71                 return (fmd_set_errno(EFMD_HDL_INIT));
  72
  73         return (0);
  74 }
  75
  76 static int
  77 bltin_fini(fmd_module_t *mp)
  78 {
  79         fmd_builtin_t *bp = mp->mod_data;
  80
  81         if (mp->mod_info != NULL) {
  82                 (void) fmd_module_enter(mp, bp->bltin_fini);
  83
  84                 if (mp->mod_info != NULL) {
  85                         fmd_module_lock(mp);
  86                         fmd_module_unregister(mp);
  87                         fmd_module_unlock(mp);
  88                 }
  89
  90                 fmd_module_exit(mp);
  91         }
  92
  93         return (0);
  94 }
  95
  96 const fmd_modops_t fmd_bltin_ops = {
  97         bltin_init,
  98         bltin_fini,
  99         fmd_module_dispatch,
 100         fmd_module_transport,
 101 };
 102
 103 int
 104 fmd_builtin_loadall(fmd_modhash_t *mhp)
 105 {
 106         const fmd_builtin_t *bp;
 107         uint32_t ctxt = 0;
 108         int err = 0;
 109
 110         ctxt |= (getzoneid() == GLOBAL_ZONEID) ? FMD_BUILTIN_CTXT_GLOBALZONE :
 111             FMD_BUILTIN_CTXT_NONGLOBALZONE;
 112
 113         for (bp = _fmd_builtins; bp->bltin_name != NULL; bp++) {
 114                 if (!(ctxt & bp->bltin_ctxts))
 115                         continue;
 116
 117                 if (fmd_modhash_load(mhp, bp->bltin_name,
 118                     &fmd_bltin_ops) == NULL)
 119                         err = -1;
 120         }
 121
 122         return (err);
 123 }