sys/cddl/compat/opensolaris/kern/opensolaris_sysevent.c

   1 /*-
   2  * Copyright (c) 2010 Pawel Jakub Dawidek <pjd@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 #include <sys/param.h>
  31 #include <sys/kernel.h>
  32 #include <sys/systm.h>
  33 #include <sys/malloc.h>
  34 #include <sys/kmem.h>
  35 #include <sys/sbuf.h>
  36 #include <sys/bus.h>
  37 #include <sys/nvpair.h>
  38 #include <sys/sunddi.h>
  39 #include <sys/sysevent.h>
  40 #include <sys/fm/protocol.h>
  41
  42 struct sysevent {
  43         nvlist_t        *se_nvl;
  44         char             se_class[128];
  45         char             se_subclass[128];
  46         char             se_pub[128];
  47 };
  48
  49 sysevent_t *
  50 sysevent_alloc(char *class, char *subclass, char *pub, int flag)
  51 {
  52         struct sysevent *ev;
  53
  54         ASSERT(class != NULL);
  55         ASSERT(subclass != NULL);
  56         ASSERT(pub != NULL);
  57         ASSERT(flag == SE_SLEEP);
  58
  59         ev = kmem_alloc(sizeof(*ev), KM_SLEEP);
  60         ev->se_nvl = NULL;
  61         strlcpy(ev->se_class, class, sizeof(ev->se_class));
  62         strlcpy(ev->se_subclass, subclass, sizeof(ev->se_subclass));
  63         strlcpy(ev->se_pub, pub, sizeof(ev->se_pub));
  64
  65         return ((sysevent_t *)ev);
  66 }
  67
  68 void
  69 sysevent_free(sysevent_t *evp)
  70 {
  71         struct sysevent *ev = (struct sysevent *)evp;
  72
  73         ASSERT(evp != NULL);
  74
  75         if (ev->se_nvl != NULL)
  76                 sysevent_free_attr(ev->se_nvl);
  77         kmem_free(ev, sizeof(*ev));
  78 }
  79
  80 int
  81 sysevent_add_attr(sysevent_attr_list_t **ev_attr_list, char *name,
  82     sysevent_value_t *se_value, int flag)
  83 {
  84         nvlist_t *nvl;
  85         int error;
  86
  87         ASSERT(ev_attr_list != NULL);
  88         ASSERT(name != NULL);
  89         ASSERT(se_value != NULL);
  90         ASSERT(flag == SE_SLEEP);
  91
  92         if (strlen(name) >= MAX_ATTR_NAME)
  93                 return (SE_EINVAL);
  94
  95         nvl = *ev_attr_list;
  96         if (nvl == NULL) {
  97                 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME_TYPE, KM_SLEEP) != 0)
  98                         return (SE_ENOMEM);
  99         }
 100
 101         error = 0;
 102
 103         switch (se_value->value_type) {
 104         case SE_DATA_TYPE_UINT64:
 105                 error = nvlist_add_uint64(nvl, name, se_value->value.sv_uint64);
 106                 break;
 107         case SE_DATA_TYPE_STRING:
 108                 if (strlen(se_value->value.sv_string) >= MAX_STRING_SZ)
 109                         error = SE_EINVAL;
 110                 if (error == 0) {
 111                         error = nvlist_add_string(nvl, name,
 112                             se_value->value.sv_string);
 113                 }
 114                 break;
 115         default:
 116                 printf("%s: type %d is not implemented\n", __func__,
 117                     se_value->value_type);
 118                 break;
 119         }
 120
 121         if (error != 0) {
 122                 nvlist_free(nvl);
 123                 return (error);
 124         }
 125
 126         *ev_attr_list = nvl;
 127
 128         return (0);
 129 }
 130
 131 void
 132 sysevent_free_attr(sysevent_attr_list_t *ev_attr_list)
 133 {
 134
 135         nvlist_free(ev_attr_list);
 136 }
 137
 138 int
 139 sysevent_attach_attributes(sysevent_t *evp, sysevent_attr_list_t *ev_attr_list)
 140 {
 141         struct sysevent *ev = (struct sysevent *)evp;
 142
 143         ASSERT(ev->se_nvl == NULL);
 144
 145         ev->se_nvl = ev_attr_list;
 146
 147         return (0);
 148 }
 149
 150 void
 151 sysevent_detach_attributes(sysevent_t *evp)
 152 {
 153         struct sysevent *ev = (struct sysevent *)evp;
 154
 155         ASSERT(ev->se_nvl != NULL);
 156
 157         ev->se_nvl = NULL;
 158 }
 159
 160 int
 161 log_sysevent(sysevent_t *evp, int flag, sysevent_id_t *eid)
 162 {
 163         struct sysevent *ev = (struct sysevent *)evp;
 164         struct sbuf *sb;
 165         const char *type;
 166         char typestr[128];
 167         nvpair_t *elem = NULL;
 168
 169         ASSERT(evp != NULL);
 170         ASSERT(ev->se_nvl != NULL);
 171         ASSERT(flag == SE_SLEEP);
 172         ASSERT(eid != NULL);
 173
 174         sb = sbuf_new_auto();
 175         if (sb == NULL)
 176                 return (SE_ENOMEM);
 177         type = NULL;
 178
 179         while ((elem = nvlist_next_nvpair(ev->se_nvl, elem)) != NULL) {
 180                 switch (nvpair_type(elem)) {
 181                 case DATA_TYPE_BOOLEAN:
 182                     {
 183                         boolean_t value;
 184
 185                         (void) nvpair_value_boolean_value(elem, &value);
 186                         sbuf_printf(sb, " %s=%s", nvpair_name(elem),
 187                             value ? "true" : "false");
 188                         break;
 189                     }
 190                 case DATA_TYPE_UINT8:
 191                     {
 192                         uint8_t value;
 193
 194                         (void) nvpair_value_uint8(elem, &value);
 195                         sbuf_printf(sb, " %s=%hhu", nvpair_name(elem), value);
 196                         break;
 197                     }
 198                 case DATA_TYPE_INT32:
 199                     {
 200                         int32_t value;
 201
 202                         (void) nvpair_value_int32(elem, &value);
 203                         sbuf_printf(sb, " %s=%jd", nvpair_name(elem),
 204                             (intmax_t)value);
 205                         break;
 206                     }
 207                 case DATA_TYPE_UINT32:
 208                     {
 209                         uint32_t value;
 210
 211                         (void) nvpair_value_uint32(elem, &value);
 212                         sbuf_printf(sb, " %s=%ju", nvpair_name(elem),
 213                             (uintmax_t)value);
 214                         break;
 215                     }
 216                 case DATA_TYPE_INT64:
 217                     {
 218                         int64_t value;
 219
 220                         (void) nvpair_value_int64(elem, &value);
 221                         sbuf_printf(sb, " %s=%jd", nvpair_name(elem),
 222                             (intmax_t)value);
 223                         break;
 224                     }
 225                 case DATA_TYPE_UINT64:
 226                     {
 227                         uint64_t value;
 228
 229                         (void) nvpair_value_uint64(elem, &value);
 230                         sbuf_printf(sb, " %s=%ju", nvpair_name(elem),
 231                             (uintmax_t)value);
 232                         break;
 233                     }
 234                 case DATA_TYPE_STRING:
 235                     {
 236                         char *value;
 237
 238                         (void) nvpair_value_string(elem, &value);
 239                         sbuf_printf(sb, " %s=%s", nvpair_name(elem), value);
 240                         if (strcmp(FM_CLASS, nvpair_name(elem)) == 0)
 241                                 type = value;
 242                         break;
 243                     }
 244                 case DATA_TYPE_UINT8_ARRAY:
 245                     {
 246                         uint8_t *value;
 247                         uint_t ii, nelem;
 248
 249                         (void) nvpair_value_uint8_array(elem, &value, &nelem);
 250                         sbuf_printf(sb, " %s=", nvpair_name(elem));
 251                         for (ii = 0; ii < nelem; ii++)
 252                                 sbuf_printf(sb, "%02hhx", value[ii]);
 253                         break;
 254                     }
 255                 case DATA_TYPE_UINT16_ARRAY:
 256                     {
 257                         uint16_t *value;
 258                         uint_t ii, nelem;
 259
 260                         (void) nvpair_value_uint16_array(elem, &value, &nelem);
 261                         sbuf_printf(sb, " %s=", nvpair_name(elem));
 262                         for (ii = 0; ii < nelem; ii++)
 263                                 sbuf_printf(sb, "%04hx", value[ii]);
 264                         break;
 265                     }
 266                 case DATA_TYPE_UINT32_ARRAY:
 267                     {
 268                         uint32_t *value;
 269                         uint_t ii, nelem;
 270
 271                         (void) nvpair_value_uint32_array(elem, &value, &nelem);
 272                         sbuf_printf(sb, " %s=", nvpair_name(elem));
 273                         for (ii = 0; ii < nelem; ii++)
 274                                 sbuf_printf(sb, "%08jx", (uintmax_t)value[ii]);
 275                         break;
 276                     }
 277                 case DATA_TYPE_UINT64_ARRAY:
 278                     {
 279                         uint64_t *value;
 280                         uint_t ii, nelem;
 281
 282                         (void) nvpair_value_uint64_array(elem, &value, &nelem);
 283                         sbuf_printf(sb, " %s=", nvpair_name(elem));
 284                         for (ii = 0; ii < nelem; ii++)
 285                                 sbuf_printf(sb, "%016jx", (uintmax_t)value[ii]);
 286                         break;
 287                     }
 288                 default:
 289                         printf("%s: type %d is not implemented\n", __func__,
 290                             nvpair_type(elem));
 291                         break;
 292                 }
 293         }
 294
 295         sbuf_finish(sb);
 296         if (sbuf_overflowed(sb)) {
 297                 sbuf_delete(sb);
 298                 return (SE_ENOMEM);
 299         }
 300
 301         if (type == NULL)
 302                 type = ev->se_subclass;
 303         if (strncmp(type, "ESC_ZFS_", 8) == 0) {
 304                 snprintf(typestr, sizeof(typestr), "misc.fs.zfs.%s", type + 8);
 305                 type = typestr;
 306         }
 307         devctl_notify("ZFS", "ZFS", type, sbuf_data(sb));
 308         sbuf_delete(sb);
 309
 310         return (0);
 311 }
 312
 313 int
 314 _ddi_log_sysevent(char *vendor, char *class, char *subclass,
 315     nvlist_t *attr_list, sysevent_id_t *eidp, int flag)
 316 {
 317         sysevent_t *ev;
 318         int ret;
 319
 320         ASSERT(vendor != NULL);
 321         ASSERT(class != NULL);
 322         ASSERT(subclass != NULL);
 323         ASSERT(attr_list != NULL);
 324         ASSERT(eidp != NULL);
 325         ASSERT(flag == DDI_SLEEP);
 326
 327         ev = sysevent_alloc(class, subclass, vendor, SE_SLEEP);
 328         ASSERT(ev != NULL);
 329         (void)sysevent_attach_attributes(ev, attr_list);
 330         ret = log_sysevent(ev, SE_SLEEP, eidp);
 331         sysevent_detach_attributes(ev);
 332         sysevent_free(ev);
 333
 334         return (ret);
 335 }