usr/src/cmd/fm/schemes/dev/scheme.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 <fm/fmd_fmri.h>
  30 #include <fm/libtopo.h>
  31 #include <fm/topo_mod.h>
  32 #include <libdevinfo.h>
  33 #include <alloca.h>
  34 #include <string.h>
  35
  36 int
  37 fmd_fmri_init(void)
  38 {
  39         return (0);
  40 }
  41
  42 void
  43 fmd_fmri_fini(void)
  44 {
  45 }
  46
  47 ssize_t
  48 fmd_fmri_nvl2str(nvlist_t *nvl, char *buf, size_t buflen)
  49 {
  50         int err;
  51         ssize_t len;
  52         topo_hdl_t *thp;
  53         char *str;
  54
  55         if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
  56                 return (fmd_fmri_set_errno(EINVAL));
  57
  58         if (topo_fmri_nvl2str(thp, nvl, &str, &err) != 0) {
  59                 fmd_fmri_topo_rele(thp);
  60                 return (fmd_fmri_set_errno(EINVAL));
  61         }
  62
  63         if (buf != NULL)
  64                 len = snprintf(buf, buflen, "%s", str);
  65         else
  66                 len = strlen(str);
  67
  68         topo_hdl_strfree(thp, str);
  69         fmd_fmri_topo_rele(thp);
  70
  71         return (len);
  72 }
  73
  74 int
  75 fmd_fmri_present(nvlist_t *nvl)
  76 {
  77         int err, present;
  78         topo_hdl_t *thp;
  79
  80         if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
  81                 return (fmd_fmri_set_errno(EINVAL));
  82         err = 0;
  83         present = topo_fmri_present(thp, nvl, &err);
  84         fmd_fmri_topo_rele(thp);
  85
  86         return (present);
  87 }
  88
  89 int
  90 fmd_fmri_replaced(nvlist_t *nvl)
  91 {
  92         int err, rval;
  93         topo_hdl_t *thp;
  94
  95         if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
  96                 return (fmd_fmri_set_errno(EINVAL));
  97         err = 0;
  98         rval = topo_fmri_replaced(thp, nvl, &err);
  99         fmd_fmri_topo_rele(thp);
 100
 101         return (rval);
 102 }
 103
 104 int
 105 fmd_fmri_unusable(nvlist_t *nvl)
 106 {
 107         uint8_t version;
 108         int err, unusable;
 109         topo_hdl_t *thp;
 110
 111         if (nvlist_lookup_uint8(nvl, FM_VERSION, &version) != 0 ||
 112             version > FM_DEV_SCHEME_VERSION)
 113                 return (fmd_fmri_set_errno(EINVAL));
 114
 115         if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
 116                 return (fmd_fmri_set_errno(EINVAL));
 117         err = 0;
 118         unusable = topo_fmri_unusable(thp, nvl, &err);
 119         fmd_fmri_topo_rele(thp);
 120
 121         if (err != 0)
 122                 return (0);
 123         else
 124                 return (unusable);
 125 }
 126
 127 int
 128 fmd_fmri_service_state(nvlist_t *nvl)
 129 {
 130         uint8_t version;
 131         int err, service_state;
 132         topo_hdl_t *thp;
 133
 134         if (nvlist_lookup_uint8(nvl, FM_VERSION, &version) != 0 ||
 135             version > FM_DEV_SCHEME_VERSION)
 136                 return (fmd_fmri_set_errno(EINVAL));
 137
 138         if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
 139                 return (fmd_fmri_set_errno(EINVAL));
 140         err = 0;
 141         service_state = topo_fmri_service_state(thp, nvl, &err);
 142         fmd_fmri_topo_rele(thp);
 143
 144         if (err != 0)
 145                 return (FMD_SERVICE_STATE_UNKNOWN);
 146         else
 147                 return (service_state);
 148 }