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 2010 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 /*
  28  * SMBIOS Information Routines
  29  *
  30  * The routines in this file are used to convert from the SMBIOS data format to
  31  * a more reasonable and stable set of structures offered as part of our ABI.
  32  * These functions take the general form:
  33  *
  34  *      stp = smb_lookup_type(shp, foo);
  35  *      smb_foo_t foo;
  36  *
  37  *      smb_info_bcopy(stp->smbst_hdr, &foo, sizeof (foo));
  38  *      bzero(caller's struct);
  39  *
  40  *      copy/convert foo members into caller's struct
  41  *
  42  * We copy the internal structure on to an automatic variable so as to avoid
  43  * checks everywhere for structures that the BIOS has improperly truncated, and
  44  * also to automatically handle the case of a structure that has been extended.
  45  * When necessary, this code can use smb_gteq() to determine whether the SMBIOS
  46  * data is of a particular revision that is supposed to contain a new field.
  47  */
  48 
  49 #include <sys/smbios_impl.h>
  50 
  51 #ifdef _KERNEL
  52 #include <sys/sunddi.h>
  53 #else
  54 #include <fcntl.h>
  55 #include <unistd.h>
  56 #include <string.h>
  57 #endif
  58 
  59 /*
  60  * A large number of SMBIOS structures contain a set of common strings used to
  61  * describe a h/w component's serial number, manufacturer, etc.  These fields
  62  * helpfully have different names and offsets and sometimes aren't consistent.
  63  * To simplify life for our clients, we factor these common things out into
  64  * smbios_info_t, which can be retrieved for any structure.  The following
  65  * table describes the mapping from a given structure to the smbios_info_t.
  66  * Multiple SMBIOS stuctures' contained objects are also handled here.
  67  */
  68 static const struct smb_infospec {
  69         uint8_t is_type;                /* structure type */
  70         uint8_t is_manu;                /* manufacturer offset */
  71         uint8_t is_product;             /* product name offset */
  72         uint8_t is_version;             /* version offset */
  73         uint8_t is_serial;              /* serial number offset */
  74         uint8_t is_asset;               /* asset tag offset */
  75         uint8_t is_location;            /* location string offset */
  76         uint8_t is_part;                /* part number offset */
  77         uint8_t is_contc;               /* contained count */
  78         uint8_t is_contsz;              /* contained size */
  79         uint8_t is_contv;               /* contained objects */
  80 } _smb_infospecs[] = {
  81         { SMB_TYPE_SYSTEM,
  82                 offsetof(smb_system_t, smbsi_manufacturer),
  83                 offsetof(smb_system_t, smbsi_product),
  84                 offsetof(smb_system_t, smbsi_version),
  85                 offsetof(smb_system_t, smbsi_serial),
  86                 0,
  87                 0,
  88                 0,
  89                 0,
  90                 0,
  91                 0 },
  92         { SMB_TYPE_BASEBOARD,
  93                 offsetof(smb_bboard_t, smbbb_manufacturer),
  94                 offsetof(smb_bboard_t, smbbb_product),
  95                 offsetof(smb_bboard_t, smbbb_version),
  96                 offsetof(smb_bboard_t, smbbb_serial),
  97                 offsetof(smb_bboard_t, smbbb_asset),
  98                 offsetof(smb_bboard_t, smbbb_location),
  99                 0,
 100                 offsetof(smb_bboard_t, smbbb_cn),
 101                 SMB_CONT_WORD,
 102                 offsetof(smb_bboard_t, smbbb_cv) },
 103         { SMB_TYPE_CHASSIS,
 104                 offsetof(smb_chassis_t, smbch_manufacturer),
 105                 0,
 106                 offsetof(smb_chassis_t, smbch_version),
 107                 offsetof(smb_chassis_t, smbch_serial),
 108                 offsetof(smb_chassis_t, smbch_asset),
 109                 0,
 110                 0,
 111                 offsetof(smb_chassis_t, smbch_cn),
 112                 SMB_CONT_BYTE,
 113                 offsetof(smb_chassis_t, smbch_cv) },
 114         { SMB_TYPE_PROCESSOR,
 115                 offsetof(smb_processor_t, smbpr_manufacturer),
 116                 0,
 117                 offsetof(smb_processor_t, smbpr_version),
 118                 offsetof(smb_processor_t, smbpr_serial),
 119                 offsetof(smb_processor_t, smbpr_asset),
 120                 offsetof(smb_processor_t, smbpr_socket),
 121                 offsetof(smb_processor_t, smbpr_part),
 122                 0,
 123                 0,
 124                 0 },
 125         { SMB_TYPE_CACHE,
 126                 0,
 127                 0,
 128                 0,
 129                 0,
 130                 0,
 131                 offsetof(smb_cache_t, smbca_socket),
 132                 0,
 133                 0,
 134                 0,
 135                 0 },
 136         { SMB_TYPE_PORT,
 137                 0,
 138                 0,
 139                 0,
 140                 0,
 141                 0,
 142                 offsetof(smb_port_t, smbpo_iref),
 143                 0,
 144                 0,
 145                 0,
 146                 0 },
 147         { SMB_TYPE_SLOT,
 148                 0,
 149                 0,
 150                 0,
 151                 0,
 152                 0,
 153                 offsetof(smb_slot_t, smbsl_name),
 154                 0,
 155                 0,
 156                 0,
 157                 0 },
 158         { SMB_TYPE_MEMDEVICE,
 159                 offsetof(smb_memdevice_t, smbmdev_manufacturer),
 160                 0,
 161                 0,
 162                 offsetof(smb_memdevice_t, smbmdev_serial),
 163                 offsetof(smb_memdevice_t, smbmdev_asset),
 164                 offsetof(smb_memdevice_t, smbmdev_dloc),
 165                 offsetof(smb_memdevice_t, smbmdev_part),
 166                 0,
 167                 0,
 168                 0 },
 169         { SMB_TYPE_POWERSUP,
 170                 offsetof(smb_powersup_t, smbpsup_manufacturer),
 171                 offsetof(smb_powersup_t, smbpsup_devname),
 172                 offsetof(smb_powersup_t, smbpsup_rev),
 173                 offsetof(smb_powersup_t, smbpsup_serial),
 174                 offsetof(smb_powersup_t, smbpsup_asset),
 175                 offsetof(smb_powersup_t, smbpsup_loc),
 176                 offsetof(smb_powersup_t, smbpsup_part),
 177                 0,
 178                 0,
 179                 0 },
 180         { SMB_TYPE_EOT }
 181 };
 182 
 183 static const char *
 184 smb_info_strptr(const smb_struct_t *stp, uint8_t off, int *n)
 185 {
 186         const uint8_t *sp = (const uint8_t *)(uintptr_t)stp->smbst_hdr;
 187 
 188         if (off != 0 && sp + off < stp->smbst_end) {
 189                 (*n)++; /* indicate success for caller */
 190                 return (smb_strptr(stp, sp[off]));
 191         }
 192 
 193         return (smb_strptr(stp, 0));
 194 }
 195 
 196 static void
 197 smb_info_bcopy(const smb_header_t *hp, void *dst, size_t dstlen)
 198 {
 199         if (dstlen > hp->smbh_len) {
 200                 bcopy(hp, dst, hp->smbh_len);
 201                 bzero((char *)dst + hp->smbh_len, dstlen - hp->smbh_len);
 202         } else
 203                 bcopy(hp, dst, dstlen);
 204 }
 205 
 206 void
 207 smbios_info_smbios(smbios_hdl_t *shp, smbios_entry_t *ep)
 208 {
 209         bcopy(&shp->sh_ent, ep, sizeof (smbios_entry_t));
 210 }
 211 
 212 #ifndef _KERNEL
 213 static char smbios_product_override[256];
 214 static boolean_t smbios_product_checked;
 215 #endif
 216 
 217 int
 218 smbios_info_common(smbios_hdl_t *shp, id_t id, smbios_info_t *ip)
 219 {
 220         const smb_struct_t *stp = smb_lookup_id(shp, id);
 221         const struct smb_infospec *isp;
 222         int n = 0;
 223 
 224         if (stp == NULL)
 225                 return (-1); /* errno is set for us */
 226 
 227         for (isp = _smb_infospecs; isp->is_type != SMB_TYPE_EOT; isp++) {
 228                 if (isp->is_type == stp->smbst_hdr->smbh_type)
 229                         break;
 230         }
 231 
 232         ip->smbi_manufacturer = smb_info_strptr(stp, isp->is_manu, &n);
 233         ip->smbi_product = smb_info_strptr(stp, isp->is_product, &n);
 234         ip->smbi_version = smb_info_strptr(stp, isp->is_version, &n);
 235         ip->smbi_serial = smb_info_strptr(stp, isp->is_serial, &n);
 236         ip->smbi_asset = smb_info_strptr(stp, isp->is_asset, &n);
 237         ip->smbi_location = smb_info_strptr(stp, isp->is_location, &n);
 238         ip->smbi_part = smb_info_strptr(stp, isp->is_part, &n);
 239 
 240         /*
 241          * This private file allows developers to experiment with reporting
 242          * different platform strings from SMBIOS.  It is not a supported
 243          * mechanism in the long term, and does not work in the kernel.
 244          */
 245 #ifndef _KERNEL
 246         if (isp->is_type == SMB_TYPE_SYSTEM) {
 247                 if (!smbios_product_checked) {
 248                         int fd = open("/etc/smbios_product", O_RDONLY);
 249                         if (fd >= 0) {
 250                                 (void) read(fd, smbios_product_override,
 251                                     sizeof (smbios_product_override) - 1);
 252                                 (void) close(fd);
 253                         }
 254                         smbios_product_checked = B_TRUE;
 255                 }
 256 
 257                 if (smbios_product_override[0] != '\0')
 258                         ip->smbi_product = smbios_product_override;
 259         }
 260 #endif
 261 
 262         /*
 263          * If we have a port with an empty internal reference designator string
 264          * try using the external reference designator string instead.
 265          */
 266         if (isp->is_type == SMB_TYPE_PORT && ip->smbi_location[0] == '\0') {
 267                 ip->smbi_location = smb_info_strptr(stp,
 268                     offsetof(smb_port_t, smbpo_eref), &n);
 269         }
 270 
 271         return (n ? 0 : smb_set_errno(shp, ESMB_NOINFO));
 272 }
 273 
 274 /*
 275  * Returns the actual number of contained objects.
 276  *
 277  * idc - number of contained objects
 278  * idv - returned array of contained objects
 279  */
 280 int
 281 smbios_info_contains(smbios_hdl_t *shp, id_t id, uint_t idc, id_t *idv)
 282 {
 283         const smb_struct_t *stp = smb_lookup_id(shp, id);
 284         const struct smb_infospec *isp;
 285         id_t *cp;
 286         uint_t size;
 287         uint8_t cnt;
 288         int i, n;
 289 
 290         if (stp == NULL) {
 291                 return (-1); /* errno is set for us */
 292         }
 293 
 294         for (isp = _smb_infospecs; isp->is_type != SMB_TYPE_EOT; isp++) {
 295                 if (isp->is_type == stp->smbst_hdr->smbh_type)
 296                         break;
 297         }
 298         if (isp->is_type == SMB_TYPE_EOT)
 299                 return (smb_set_errno(shp, ESMB_TYPE));
 300 
 301         size = isp->is_contsz;
 302         cnt = *((uint8_t *)(uintptr_t)stp->smbst_hdr + isp->is_contc);
 303         cp = (id_t *)((uintptr_t)stp->smbst_hdr + isp->is_contv);
 304 
 305         n = MIN(cnt, idc);
 306         for (i = 0; i < n; i++) {
 307                 if (size == SMB_CONT_WORD)
 308                         idv[i] = *((uint8_t *)(uintptr_t)cp + (i * 2));
 309                 else if (size == SMB_CONT_BYTE)
 310                         idv[i] = *((uint8_t *)(uintptr_t)cp + (i * 3));
 311                 else
 312                         return (smb_set_errno(shp, ESMB_INVAL));
 313         }
 314 
 315         return (cnt);
 316 }
 317 
 318 id_t
 319 smbios_info_bios(smbios_hdl_t *shp, smbios_bios_t *bp)
 320 {
 321         const smb_struct_t *stp = smb_lookup_type(shp, SMB_TYPE_BIOS);
 322         const smb_bios_t *bip;
 323 
 324         if (stp == NULL)
 325                 return (-1); /* errno is set for us */
 326 
 327         if (stp->smbst_hdr->smbh_len < sizeof (smb_bios_t) - sizeof (uint8_t))
 328                 return (smb_set_errno(shp, ESMB_CORRUPT));
 329 
 330         bip = (smb_bios_t *)(uintptr_t)stp->smbst_hdr;
 331         bzero(bp, sizeof (smbios_bios_t));
 332 
 333         bp->smbb_vendor = smb_strptr(stp, bip->smbbi_vendor);
 334         bp->smbb_version = smb_strptr(stp, bip->smbbi_version);
 335         bp->smbb_segment = bip->smbbi_segment;
 336         bp->smbb_reldate = smb_strptr(stp, bip->smbbi_reldate);
 337         bp->smbb_romsize = 64 * 1024 * ((uint32_t)bip->smbbi_romsize + 1);
 338         bp->smbb_runsize = 16 * (0x10000 - (uint32_t)bip->smbbi_segment);
 339         bp->smbb_cflags = bip->smbbi_cflags;
 340 
 341         /*
 342          * If one or more extension bytes are present, reset smbb_xcflags to
 343          * point to them.  Otherwise leave this member set to NULL.
 344          */
 345         if (stp->smbst_hdr->smbh_len >= sizeof (smb_bios_t)) {
 346                 bp->smbb_xcflags = bip->smbbi_xcflags;
 347                 bp->smbb_nxcflags = stp->smbst_hdr->smbh_len -
 348                     sizeof (smb_bios_t) + 1;
 349 
 350                 if (bp->smbb_nxcflags > SMB_BIOSXB_ECFW_MIN &&
 351                     smb_gteq(shp, SMB_VERSION_24)) {
 352                         bp->smbb_biosv.smbv_major =
 353                             bip->smbbi_xcflags[SMB_BIOSXB_BIOS_MAJ];
 354                         bp->smbb_biosv.smbv_minor =
 355                             bip->smbbi_xcflags[SMB_BIOSXB_BIOS_MIN];
 356                         bp->smbb_ecfwv.smbv_major =
 357                             bip->smbbi_xcflags[SMB_BIOSXB_ECFW_MAJ];
 358                         bp->smbb_ecfwv.smbv_minor =
 359                             bip->smbbi_xcflags[SMB_BIOSXB_ECFW_MIN];
 360                 }
 361         }
 362 
 363         return (stp->smbst_hdr->smbh_hdl);
 364 }
 365 
 366 id_t
 367 smbios_info_system(smbios_hdl_t *shp, smbios_system_t *sip)
 368 {
 369         const smb_struct_t *stp = smb_lookup_type(shp, SMB_TYPE_SYSTEM);
 370         smb_system_t si;
 371 
 372         if (stp == NULL)
 373                 return (-1); /* errno is set for us */
 374 
 375         smb_info_bcopy(stp->smbst_hdr, &si, sizeof (si));
 376         bzero(sip, sizeof (smbios_system_t));
 377 
 378         sip->smbs_uuid = ((smb_system_t *)stp->smbst_hdr)->smbsi_uuid;
 379         sip->smbs_uuidlen = sizeof (si.smbsi_uuid);
 380         sip->smbs_wakeup = si.smbsi_wakeup;
 381         sip->smbs_sku = smb_strptr(stp, si.smbsi_sku);
 382         sip->smbs_family = smb_strptr(stp, si.smbsi_family);
 383 
 384         return (stp->smbst_hdr->smbh_hdl);
 385 }
 386 
 387 int
 388 smbios_info_bboard(smbios_hdl_t *shp, id_t id, smbios_bboard_t *bbp)
 389 {
 390         const smb_struct_t *stp = smb_lookup_id(shp, id);
 391         smb_bboard_t bb;
 392 
 393         if (stp == NULL)
 394                 return (-1); /* errno is set for us */
 395 
 396         if (stp->smbst_hdr->smbh_type != SMB_TYPE_BASEBOARD)
 397                 return (smb_set_errno(shp, ESMB_TYPE));
 398 
 399         smb_info_bcopy(stp->smbst_hdr, &bb, sizeof (bb));
 400         bzero(bbp, sizeof (smbios_bboard_t));
 401 
 402         bbp->smbb_chassis = bb.smbbb_chassis;
 403         bbp->smbb_flags = bb.smbbb_flags;
 404         bbp->smbb_type = bb.smbbb_type;
 405         bbp->smbb_contn = bb.smbbb_cn;
 406 
 407         return (0);
 408 }
 409 
 410 int
 411 smbios_info_chassis(smbios_hdl_t *shp, id_t id, smbios_chassis_t *chp)
 412 {
 413         const smb_struct_t *stp = smb_lookup_id(shp, id);
 414         smb_chassis_t ch;
 415 
 416         if (stp == NULL)
 417                 return (-1); /* errno is set for us */
 418 
 419         if (stp->smbst_hdr->smbh_type != SMB_TYPE_CHASSIS)
 420                 return (smb_set_errno(shp, ESMB_TYPE));
 421 
 422         smb_info_bcopy(stp->smbst_hdr, &ch, sizeof (ch));
 423         bzero(chp, sizeof (smbios_chassis_t));
 424 
 425         chp->smbc_oemdata = ch.smbch_oemdata;
 426         chp->smbc_lock = (ch.smbch_type & SMB_CHT_LOCK) != 0;
 427         chp->smbc_type = ch.smbch_type & ~SMB_CHT_LOCK;
 428         chp->smbc_bustate = ch.smbch_bustate;
 429         chp->smbc_psstate = ch.smbch_psstate;
 430         chp->smbc_thstate = ch.smbch_thstate;
 431         chp->smbc_security = ch.smbch_security;
 432         chp->smbc_uheight = ch.smbch_uheight;
 433         chp->smbc_cords = ch.smbch_cords;
 434         chp->smbc_elems = ch.smbch_cn;
 435         chp->smbc_elemlen = ch.smbch_cm;
 436 
 437         return (0);
 438 }
 439 
 440 int
 441 smbios_info_processor(smbios_hdl_t *shp, id_t id, smbios_processor_t *pp)
 442 {
 443         const smb_struct_t *stp = smb_lookup_id(shp, id);
 444         smb_processor_t p;
 445 
 446         if (stp == NULL)
 447                 return (-1); /* errno is set for us */
 448 
 449         if (stp->smbst_hdr->smbh_type != SMB_TYPE_PROCESSOR)
 450                 return (smb_set_errno(shp, ESMB_TYPE));
 451 
 452         smb_info_bcopy(stp->smbst_hdr, &p, sizeof (p));
 453         bzero(pp, sizeof (smbios_processor_t));
 454 
 455         pp->smbp_cpuid = p.smbpr_cpuid;
 456         pp->smbp_type = p.smbpr_type;
 457         pp->smbp_family = p.smbpr_family;
 458         pp->smbp_voltage = p.smbpr_voltage;
 459         pp->smbp_maxspeed = p.smbpr_maxspeed;
 460         pp->smbp_curspeed = p.smbpr_curspeed;
 461         pp->smbp_status = p.smbpr_status;
 462         pp->smbp_upgrade = p.smbpr_upgrade;
 463         pp->smbp_l1cache = p.smbpr_l1cache;
 464         pp->smbp_l2cache = p.smbpr_l2cache;
 465         pp->smbp_l3cache = p.smbpr_l3cache;
 466 
 467         return (0);
 468 }
 469 
 470 int
 471 smbios_info_cache(smbios_hdl_t *shp, id_t id, smbios_cache_t *cap)
 472 {
 473         const smb_struct_t *stp = smb_lookup_id(shp, id);
 474         smb_cache_t c;
 475 
 476         if (stp == NULL)
 477                 return (-1); /* errno is set for us */
 478 
 479         if (stp->smbst_hdr->smbh_type != SMB_TYPE_CACHE)
 480                 return (smb_set_errno(shp, ESMB_TYPE));
 481 
 482         smb_info_bcopy(stp->smbst_hdr, &c, sizeof (c));
 483         bzero(cap, sizeof (smbios_cache_t));
 484 
 485         cap->smba_maxsize = SMB_CACHE_SIZE(c.smbca_maxsize);
 486         cap->smba_size = SMB_CACHE_SIZE(c.smbca_size);
 487         cap->smba_stype = c.smbca_stype;
 488         cap->smba_ctype = c.smbca_ctype;
 489         cap->smba_speed = c.smbca_speed;
 490         cap->smba_etype = c.smbca_etype;
 491         cap->smba_ltype = c.smbca_ltype;
 492         cap->smba_assoc = c.smbca_assoc;
 493         cap->smba_level = SMB_CACHE_CFG_LEVEL(c.smbca_config);
 494         cap->smba_mode = SMB_CACHE_CFG_MODE(c.smbca_config);
 495         cap->smba_location = SMB_CACHE_CFG_LOCATION(c.smbca_config);
 496 
 497         if (SMB_CACHE_CFG_ENABLED(c.smbca_config))
 498                 cap->smba_flags |= SMB_CAF_ENABLED;
 499 
 500         if (SMB_CACHE_CFG_SOCKETED(c.smbca_config))
 501                 cap->smba_flags |= SMB_CAF_SOCKETED;
 502 
 503         return (0);
 504 }
 505 
 506 int
 507 smbios_info_port(smbios_hdl_t *shp, id_t id, smbios_port_t *pop)
 508 {
 509         const smb_struct_t *stp = smb_lookup_id(shp, id);
 510         smb_port_t p;
 511 
 512         if (stp == NULL)
 513                 return (-1); /* errno is set for us */
 514 
 515         if (stp->smbst_hdr->smbh_type != SMB_TYPE_PORT)
 516                 return (smb_set_errno(shp, ESMB_TYPE));
 517 
 518         smb_info_bcopy(stp->smbst_hdr, &p, sizeof (p));
 519         bzero(pop, sizeof (smbios_port_t));
 520 
 521         pop->smbo_iref = smb_strptr(stp, p.smbpo_iref);
 522         pop->smbo_eref = smb_strptr(stp, p.smbpo_eref);
 523 
 524         pop->smbo_itype = p.smbpo_itype;
 525         pop->smbo_etype = p.smbpo_etype;
 526         pop->smbo_ptype = p.smbpo_ptype;
 527 
 528         return (0);
 529 }
 530 
 531 int
 532 smbios_info_slot(smbios_hdl_t *shp, id_t id, smbios_slot_t *sp)
 533 {
 534         const smb_struct_t *stp = smb_lookup_id(shp, id);
 535         smb_slot_t s;
 536 
 537         if (stp == NULL)
 538                 return (-1); /* errno is set for us */
 539 
 540         if (stp->smbst_hdr->smbh_type != SMB_TYPE_SLOT)
 541                 return (smb_set_errno(shp, ESMB_TYPE));
 542 
 543         smb_info_bcopy(stp->smbst_hdr, &s, sizeof (s));
 544         bzero(sp, sizeof (smbios_slot_t));
 545 
 546         sp->smbl_name = smb_strptr(stp, s.smbsl_name);
 547         sp->smbl_type = s.smbsl_type;
 548         sp->smbl_width = s.smbsl_width;
 549         sp->smbl_usage = s.smbsl_usage;
 550         sp->smbl_length = s.smbsl_length;
 551         sp->smbl_id = s.smbsl_id;
 552         sp->smbl_ch1 = s.smbsl_ch1;
 553         sp->smbl_ch2 = s.smbsl_ch2;
 554         sp->smbl_sg = s.smbsl_sg;
 555         sp->smbl_bus = s.smbsl_bus;
 556         sp->smbl_df = s.smbsl_df;
 557 
 558         return (0);
 559 }
 560 
 561 int
 562 smbios_info_obdevs_ext(smbios_hdl_t *shp, id_t id, smbios_obdev_ext_t *oep)
 563 {
 564         const smb_struct_t *stp = smb_lookup_id(shp, id);
 565         smb_obdev_ext_t obe;
 566 
 567         if (stp == NULL)
 568                 return (-1); /* errno is set for us */
 569 
 570         if (stp->smbst_hdr->smbh_type != SMB_TYPE_OBDEVEXT)
 571                 return (smb_set_errno(shp, ESMB_TYPE));
 572 
 573         smb_info_bcopy(stp->smbst_hdr, &obe, sizeof (obe));
 574         bzero(oep, sizeof (smbios_obdev_ext_t));
 575 
 576         oep->smboe_name = smb_strptr(stp, obe.smbobe_name);
 577         oep->smboe_dtype = obe.smbobe_dtype;
 578         oep->smboe_dti = obe.smbobe_dti;
 579         oep->smboe_sg = obe.smbobe_sg;
 580         oep->smboe_bus = obe.smbobe_bus;
 581         oep->smboe_df = obe.smbobe_df;
 582 
 583         return (0);
 584 }
 585 
 586 int
 587 smbios_info_obdevs(smbios_hdl_t *shp, id_t id, int obc, smbios_obdev_t *obp)
 588 {
 589         const smb_struct_t *stp = smb_lookup_id(shp, id);
 590         const smb_obdev_t *op;
 591         int i, m, n;
 592 
 593         if (stp == NULL)
 594                 return (-1); /* errno is set for us */
 595 
 596         if (stp->smbst_hdr->smbh_type != SMB_TYPE_OBDEVS)
 597                 return (smb_set_errno(shp, ESMB_TYPE));
 598 
 599         op = (smb_obdev_t *)((uintptr_t)stp->smbst_hdr + sizeof (smb_header_t));
 600         m = (stp->smbst_hdr->smbh_len - sizeof (smb_header_t)) / sizeof (*op);
 601         n = MIN(m, obc);
 602 
 603         for (i = 0; i < n; i++, op++, obp++) {
 604                 obp->smbd_name = smb_strptr(stp, op->smbob_name);
 605                 obp->smbd_type = op->smbob_type & ~SMB_OBT_ENABLED;
 606                 obp->smbd_enabled = (op->smbob_type & SMB_OBT_ENABLED) != 0;
 607         }
 608 
 609         return (m);
 610 }
 611 
 612 /*
 613  * The implementation structures for OEMSTR, SYSCONFSTR, and LANG all use the
 614  * first byte to indicate the size of a string table at the end of the record.
 615  * Therefore, smbios_info_strtab() can be used to retrieve the table size and
 616  * strings for any of these underlying record types.
 617  */
 618 int
 619 smbios_info_strtab(smbios_hdl_t *shp, id_t id, int argc, const char *argv[])
 620 {
 621         const smb_struct_t *stp = smb_lookup_id(shp, id);
 622         smb_strtab_t s;
 623         int i, n;
 624 
 625         if (stp == NULL)
 626                 return (-1); /* errno is set for us */
 627 
 628         if (stp->smbst_hdr->smbh_type != SMB_TYPE_OEMSTR &&
 629             stp->smbst_hdr->smbh_type != SMB_TYPE_SYSCONFSTR &&
 630             stp->smbst_hdr->smbh_type != SMB_TYPE_LANG)
 631                 return (smb_set_errno(shp, ESMB_TYPE));
 632 
 633         smb_info_bcopy(stp->smbst_hdr, &s, sizeof (s));
 634         n = MIN(s.smbtb_count, argc);
 635 
 636         for (i = 0; i < n; i++)
 637                 argv[i] = smb_strptr(stp, i + 1);
 638 
 639         return (s.smbtb_count);
 640 }
 641 
 642 id_t
 643 smbios_info_lang(smbios_hdl_t *shp, smbios_lang_t *lp)
 644 {
 645         const smb_struct_t *stp = smb_lookup_type(shp, SMB_TYPE_LANG);
 646         smb_lang_t l;
 647 
 648         if (stp == NULL)
 649                 return (-1); /* errno is set for us */
 650 
 651         smb_info_bcopy(stp->smbst_hdr, &l, sizeof (l));
 652         bzero(lp, sizeof (smbios_lang_t));
 653 
 654         lp->smbla_cur = smb_strptr(stp, l.smblang_cur);
 655         lp->smbla_fmt = l.smblang_flags & 1;
 656         lp->smbla_num = l.smblang_num;
 657 
 658         return (stp->smbst_hdr->smbh_hdl);
 659 }
 660 
 661 id_t
 662 smbios_info_eventlog(smbios_hdl_t *shp, smbios_evlog_t *evp)
 663 {
 664         const smb_struct_t *stp = smb_lookup_type(shp, SMB_TYPE_EVENTLOG);
 665         const smb_sel_t *sel;
 666         size_t len;
 667 
 668         if (stp == NULL)
 669                 return (-1); /* errno is set for us */
 670 
 671         if (stp->smbst_hdr->smbh_len < sizeof (smb_sel_t) - sizeof (uint8_t))
 672                 return (smb_set_errno(shp, ESMB_CORRUPT));
 673 
 674         sel = (smb_sel_t *)(uintptr_t)stp->smbst_hdr;
 675         len = stp->smbst_hdr->smbh_len - sizeof (smb_sel_t) + sizeof (uint8_t);
 676         bzero(evp, sizeof (smbios_evlog_t));
 677 
 678         if (len < sel->smbsel_typec * sel->smbsel_typesz)
 679                 return (smb_set_errno(shp, ESMB_CORRUPT));
 680 
 681         evp->smbev_size = sel->smbsel_len;
 682         evp->smbev_hdr = sel->smbsel_hdroff;
 683         evp->smbev_data = sel->smbsel_dataoff;
 684         evp->smbev_method = sel->smbsel_method;
 685         evp->smbev_flags = sel->smbsel_status;
 686         evp->smbev_format = sel->smbsel_format;
 687         evp->smbev_token = sel->smbsel_token;
 688         evp->smbev_addr.eva_addr = sel->smbsel_addr;
 689 
 690         if (sel->smbsel_typesz == sizeof (smbios_evtype_t)) {
 691                 evp->smbev_typec = sel->smbsel_typec;
 692                 evp->smbev_typev = (void *)(uintptr_t)sel->smbsel_typev;
 693         }
 694 
 695         return (stp->smbst_hdr->smbh_hdl);
 696 }
 697 
 698 int
 699 smbios_info_memarray(smbios_hdl_t *shp, id_t id, smbios_memarray_t *map)
 700 {
 701         const smb_struct_t *stp = smb_lookup_id(shp, id);
 702         smb_memarray_t m;
 703 
 704         if (stp == NULL)
 705                 return (-1); /* errno is set for us */
 706 
 707         if (stp->smbst_hdr->smbh_type != SMB_TYPE_MEMARRAY)
 708                 return (smb_set_errno(shp, ESMB_TYPE));
 709 
 710         smb_info_bcopy(stp->smbst_hdr, &m, sizeof (m));
 711         bzero(map, sizeof (smbios_memarray_t));
 712 
 713         map->smbma_location = m.smbmarr_loc;
 714         map->smbma_use = m.smbmarr_use;
 715         map->smbma_ecc = m.smbmarr_ecc;
 716         map->smbma_ndevs = m.smbmarr_ndevs;
 717         map->smbma_err = m.smbmarr_err;
 718 
 719         if (m.smbmarr_cap != 0x80000000)
 720                 map->smbma_size = (uint64_t)m.smbmarr_cap * 1024;
 721         else
 722                 map->smbma_size = 0; /* unknown */
 723 
 724         return (0);
 725 }
 726 
 727 int
 728 smbios_info_memarrmap(smbios_hdl_t *shp, id_t id, smbios_memarrmap_t *map)
 729 {
 730         const smb_struct_t *stp = smb_lookup_id(shp, id);
 731         smb_memarrmap_t m;
 732 
 733         if (stp == NULL)
 734                 return (-1); /* errno is set for us */
 735 
 736         if (stp->smbst_hdr->smbh_type != SMB_TYPE_MEMARRAYMAP)
 737                 return (smb_set_errno(shp, ESMB_TYPE));
 738 
 739         smb_info_bcopy(stp->smbst_hdr, &m, sizeof (m));
 740         bzero(map, sizeof (smbios_memarrmap_t));
 741 
 742         map->smbmam_array = m.smbamap_array;
 743         map->smbmam_width = m.smbamap_width;
 744         map->smbmam_addr = (uint64_t)m.smbamap_start * 1024;
 745         map->smbmam_size = (uint64_t)
 746             (m.smbamap_end - m.smbamap_start + 1) * 1024;
 747 
 748         return (0);
 749 }
 750 
 751 int
 752 smbios_info_memdevice(smbios_hdl_t *shp, id_t id, smbios_memdevice_t *mdp)
 753 {
 754         const smb_struct_t *stp = smb_lookup_id(shp, id);
 755         smb_memdevice_t m;
 756 
 757         if (stp == NULL)
 758                 return (-1); /* errno is set for us */
 759 
 760         if (stp->smbst_hdr->smbh_type != SMB_TYPE_MEMDEVICE)
 761                 return (smb_set_errno(shp, ESMB_TYPE));
 762 
 763         smb_info_bcopy(stp->smbst_hdr, &m, sizeof (m));
 764         bzero(mdp, sizeof (smbios_memdevice_t));
 765 
 766         mdp->smbmd_array = m.smbmdev_array;
 767         mdp->smbmd_error = m.smbmdev_error;
 768         mdp->smbmd_twidth = m.smbmdev_twidth == 0xFFFF ? -1U : m.smbmdev_twidth;
 769         mdp->smbmd_dwidth = m.smbmdev_dwidth == 0xFFFF ? -1U : m.smbmdev_dwidth;
 770 
 771         if (mdp->smbmd_size != 0xFFFF) {
 772                 mdp->smbmd_size = (uint64_t)(m.smbmdev_size & ~SMB_MDS_KBYTES);
 773                 if (m.smbmdev_size & SMB_MDS_KBYTES)
 774                         mdp->smbmd_size *= 1024;
 775                 else
 776                         mdp->smbmd_size *= 1024 * 1024;
 777         } else
 778                 mdp->smbmd_size = -1ULL; /* size unknown */
 779 
 780         mdp->smbmd_form = m.smbmdev_form;
 781         mdp->smbmd_set = m.smbmdev_set;
 782         mdp->smbmd_type = m.smbmdev_type;
 783         mdp->smbmd_flags = m.smbmdev_flags;
 784         mdp->smbmd_dloc = smb_strptr(stp, m.smbmdev_dloc);
 785         mdp->smbmd_bloc = smb_strptr(stp, m.smbmdev_bloc);
 786 
 787         if (m.smbmdev_speed != 0)
 788                 mdp->smbmd_speed = 1000 / m.smbmdev_speed; /* MHz -> nsec */
 789 
 790         return (0);
 791 }
 792 
 793 int
 794 smbios_info_memdevmap(smbios_hdl_t *shp, id_t id, smbios_memdevmap_t *mdp)
 795 {
 796         const smb_struct_t *stp = smb_lookup_id(shp, id);
 797         smb_memdevmap_t m;
 798 
 799         if (stp == NULL)
 800                 return (-1); /* errno is set for us */
 801 
 802         if (stp->smbst_hdr->smbh_type != SMB_TYPE_MEMDEVICEMAP)
 803                 return (smb_set_errno(shp, ESMB_TYPE));
 804 
 805         smb_info_bcopy(stp->smbst_hdr, &m, sizeof (m));
 806         bzero(mdp, sizeof (smbios_memdevmap_t));
 807 
 808         mdp->smbmdm_device = m.smbdmap_device;
 809         mdp->smbmdm_arrmap = m.smbdmap_array;
 810         mdp->smbmdm_addr = (uint64_t)m.smbdmap_start * 1024;
 811         mdp->smbmdm_size = (uint64_t)
 812             (m.smbdmap_end - m.smbdmap_start + 1) * 1024;
 813         mdp->smbmdm_rpos = m.smbdmap_rpos;
 814         mdp->smbmdm_ipos = m.smbdmap_ipos;
 815         mdp->smbmdm_idepth = m.smbdmap_idepth;
 816 
 817         return (0);
 818 }
 819 
 820 id_t
 821 smbios_info_hwsec(smbios_hdl_t *shp, smbios_hwsec_t *hsp)
 822 {
 823         const smb_struct_t *stp = smb_lookup_type(shp, SMB_TYPE_SECURITY);
 824         smb_hwsec_t hs;
 825 
 826         if (stp == NULL)
 827                 return (-1); /* errno is set for us */
 828 
 829         smb_info_bcopy(stp->smbst_hdr, &hs, sizeof (hs));
 830         bzero(hsp, sizeof (smbios_hwsec_t));
 831 
 832         hsp->smbh_pwr_ps = SMB_HWS_PWR_PS(hs.smbhs_settings);
 833         hsp->smbh_kbd_ps = SMB_HWS_KBD_PS(hs.smbhs_settings);
 834         hsp->smbh_adm_ps = SMB_HWS_ADM_PS(hs.smbhs_settings);
 835         hsp->smbh_pan_ps = SMB_HWS_PAN_PS(hs.smbhs_settings);
 836 
 837         return (stp->smbst_hdr->smbh_hdl);
 838 }
 839 
 840 id_t
 841 smbios_info_boot(smbios_hdl_t *shp, smbios_boot_t *bp)
 842 {
 843         const smb_struct_t *stp = smb_lookup_type(shp, SMB_TYPE_BOOT);
 844         const smb_boot_t *b = (smb_boot_t *)(uintptr_t)stp->smbst_hdr;
 845 
 846         if (stp == NULL)
 847                 return (-1); /* errno is set for us */
 848 
 849         bzero(bp, sizeof (smbios_boot_t));
 850 
 851         bp->smbt_status = b->smbbo_status[0];
 852         bp->smbt_size = stp->smbst_hdr->smbh_len - sizeof (smb_boot_t);
 853         bp->smbt_data = bp->smbt_size ? &b->smbbo_status[1] : NULL;
 854 
 855         return (stp->smbst_hdr->smbh_hdl);
 856 }
 857 
 858 id_t
 859 smbios_info_ipmi(smbios_hdl_t *shp, smbios_ipmi_t *ip)
 860 {
 861         const smb_struct_t *stp = smb_lookup_type(shp, SMB_TYPE_IPMIDEV);
 862         smb_ipmi_t i;
 863 
 864         if (stp == NULL)
 865                 return (-1); /* errno is set for us */
 866 
 867         smb_info_bcopy(stp->smbst_hdr, &i, sizeof (i));
 868         bzero(ip, sizeof (smbios_ipmi_t));
 869 
 870         ip->smbip_type = i.smbipm_type;
 871         ip->smbip_vers.smbv_major = SMB_IPM_SPEC_MAJOR(i.smbipm_spec);
 872         ip->smbip_vers.smbv_minor = SMB_IPM_SPEC_MINOR(i.smbipm_spec);
 873         ip->smbip_i2c = i.smbipm_i2c;
 874         ip->smbip_addr = i.smbipm_addr & ~SMB_IPM_ADDR_IO;
 875         ip->smbip_intr = i.smbipm_intr;
 876 
 877         if (i.smbipm_bus != (uint8_t)-1)
 878                 ip->smbip_bus = i.smbipm_bus;
 879         else
 880                 ip->smbip_bus = -1u;
 881 
 882         if (SMB_IPM_INFO_LSB(i.smbipm_info))
 883                 ip->smbip_addr |= 1; /* turn on least-significant bit of addr */
 884 
 885         if (i.smbipm_addr & SMB_IPM_ADDR_IO) {
 886                 switch (SMB_IPM_INFO_REGS(i.smbipm_info)) {
 887                 case SMB_IPM_REGS_1B:
 888                         ip->smbip_regspacing = 1;
 889                         break;
 890                 case SMB_IPM_REGS_4B:
 891                         ip->smbip_regspacing = 4;
 892                         break;
 893                 case SMB_IPM_REGS_16B:
 894                         ip->smbip_regspacing = 16;
 895                         break;
 896                 default:
 897                         ip->smbip_regspacing = 1;
 898                 }
 899                 ip->smbip_flags |= SMB_IPMI_F_IOADDR;
 900         }
 901 
 902         if (SMB_IPM_INFO_ISPEC(i.smbipm_info))
 903                 ip->smbip_flags |= SMB_IPMI_F_INTRSPEC;
 904 
 905         if (SMB_IPM_INFO_IPOL(i.smbipm_info) == SMB_IPM_IPOL_HI)
 906                 ip->smbip_flags |= SMB_IPMI_F_INTRHIGH;
 907 
 908         if (SMB_IPM_INFO_IMODE(i.smbipm_info) == SMB_IPM_IMODE_EDGE)
 909                 ip->smbip_flags |= SMB_IPMI_F_INTREDGE;
 910 
 911         return (stp->smbst_hdr->smbh_hdl);
 912 }
 913 
 914 static boolean_t
 915 smbios_has_oemstr(smbios_hdl_t *shp, const char *oemstr)
 916 {
 917         const smb_struct_t *stp = shp->sh_structs;
 918         smb_strtab_t s;
 919         int i, j;
 920 
 921         for (i = 0; i < shp->sh_nstructs; i++, stp++) {
 922                 if (stp->smbst_hdr->smbh_type != SMB_TYPE_OEMSTR)
 923                         continue;
 924 
 925                 smb_info_bcopy(stp->smbst_hdr, &s, sizeof (s));
 926                 for (j = 0; j < s.smbtb_count; j++)
 927                         if (strcmp(smb_strptr(stp, j + 1), oemstr) == 0)
 928                                 return (B_TRUE);
 929         }
 930 
 931         return (B_FALSE);
 932 }
 933 
 934 static const char *
 935 smb_serial_valid(const char *serial)
 936 {
 937         char buf[MAXNAMELEN];
 938         int i = 0;
 939 
 940         if (serial == NULL)
 941                 return (NULL);
 942 
 943         (void) strlcpy(buf, serial, sizeof (buf));
 944 
 945         while (buf[i] != '\0' && buf[i] == ' ')
 946                 i++;
 947 
 948         if (buf[i] == '\0' || strstr(buf, SMB_DEFAULT1) != NULL ||
 949             strstr(buf, SMB_DEFAULT2) != NULL)
 950                 return (NULL);
 951 
 952         return (serial);
 953 }
 954 
 955 /*
 956  * Get chassis SN or product SN
 957  */
 958 static int
 959 smb_get_sn(smbios_hdl_t *shp, const char **psnp, const char **csnp)
 960 {
 961         const smb_struct_t *stp;
 962         smbios_info_t s1, s3;
 963 
 964         if (psnp == NULL || csnp == NULL)
 965                 return (smb_set_errno(shp, ESMB_INVAL));
 966 
 967         *psnp = *csnp = NULL;
 968 
 969         /*
 970          * If SMBIOS meets Sun's PRMS requirements, retrieve product SN
 971          * from type 1 structure, and chassis SN from type 3 structure.
 972          * Otherwise return SN in type 1 structure as chassis SN.
 973          */
 974 
 975         /* Get type 1 SN */
 976         if ((stp = smb_lookup_type(shp, SMB_TYPE_SYSTEM)) == NULL ||
 977             smbios_info_common(shp, stp->smbst_hdr->smbh_hdl, &s1) == SMB_ERR)
 978                 s1.smbi_serial = NULL;
 979 
 980         /* Get type 3 SN */
 981         if ((stp = smb_lookup_type(shp, SMB_TYPE_CHASSIS)) == NULL ||
 982             smbios_info_common(shp, stp->smbst_hdr->smbh_hdl, &s3) == SMB_ERR)
 983                 s3.smbi_serial = NULL;
 984 
 985         if (smbios_has_oemstr(shp, SMB_PRMS1)) {
 986                 *psnp = smb_serial_valid(s1.smbi_serial);
 987                 *csnp = smb_serial_valid(s3.smbi_serial);
 988         } else {
 989                 *csnp = smb_serial_valid(s1.smbi_serial);
 990         }
 991 
 992         return (0);
 993 }
 994 
 995 const char *
 996 smbios_psn(smbios_hdl_t *shp)
 997 {
 998         const char *psn, *csn;
 999 
1000         return (smb_get_sn(shp, &psn, &csn) == SMB_ERR ? NULL : psn);
1001 }
1002 
1003 const char *
1004 smbios_csn(smbios_hdl_t *shp)
1005 {
1006         const char *psn, *csn;
1007 
1008         return (smb_get_sn(shp, &psn, &csn) == SMB_ERR ? NULL : csn);
1009 }
1010 
1011 int
1012 smbios_info_extprocessor(smbios_hdl_t *shp, id_t id,
1013     smbios_processor_ext_t *epp)
1014 {
1015         const smb_struct_t *stp = smb_lookup_id(shp, id);
1016         smb_processor_ext_t *exp;
1017 
1018         if (stp == NULL)
1019                 return (-1); /* errno is set for us */
1020 
1021         if (stp->smbst_hdr->smbh_type != SUN_OEM_EXT_PROCESSOR)
1022                 return (smb_set_errno(shp, ESMB_TYPE));
1023 
1024         exp = (smb_processor_ext_t *)(uintptr_t)stp->smbst_hdr;
1025         bzero(epp, sizeof (smbios_processor_ext_t));
1026 
1027         epp->smbpe_processor = exp->smbpre_processor;
1028         epp->smbpe_fru = exp->smbpre_fru;
1029         epp->smbpe_n = exp->smbpre_n;
1030         epp->smbpe_apicid = exp->smbpre_apicid;
1031 
1032         return (0);
1033 }
1034 
1035 int
1036 smbios_info_extport(smbios_hdl_t *shp, id_t id, smbios_port_ext_t *eportp)
1037 {
1038         const smb_struct_t *stp = smb_lookup_id(shp, id);
1039         smb_port_ext_t *ep;
1040 
1041         if (stp == NULL)
1042                 return (-1); /* errno is set for us */
1043 
1044         if (stp->smbst_hdr->smbh_type != SUN_OEM_EXT_PORT)
1045                 return (smb_set_errno(shp, ESMB_TYPE));
1046 
1047         ep = (smb_port_ext_t *)(uintptr_t)stp->smbst_hdr;
1048         bzero(eportp, sizeof (smbios_port_ext_t));
1049 
1050         eportp->smbporte_chassis = ep->smbpoe_chassis;
1051         eportp->smbporte_port = ep->smbpoe_port;
1052         eportp->smbporte_dtype = ep->smbpoe_dtype;
1053         eportp->smbporte_devhdl = ep->smbpoe_devhdl;
1054         eportp->smbporte_phy = ep->smbpoe_phy;
1055 
1056         return (0);
1057 }
1058 
1059 int
1060 smbios_info_pciexrc(smbios_hdl_t *shp, id_t id,
1061     smbios_pciexrc_t *rcp)
1062 {
1063         const smb_struct_t *stp = smb_lookup_id(shp, id);
1064         smb_pciexrc_t rc;
1065 
1066         if (stp == NULL)
1067                 return (-1); /* errno is set for us */
1068 
1069         if (stp->smbst_hdr->smbh_type != SUN_OEM_PCIEXRC)
1070                 return (smb_set_errno(shp, ESMB_TYPE));
1071 
1072         smb_info_bcopy(stp->smbst_hdr, &rc, sizeof (rc));
1073         bzero(rcp, sizeof (smbios_pciexrc_t));
1074 
1075         rcp->smbpcie_bb = rc.smbpciexrc_bboard;
1076         rcp->smbpcie_bdf = rc.smbpciexrc_bdf;
1077 
1078         return (0);
1079 }
1080 
1081 int
1082 smbios_info_extmemarray(smbios_hdl_t *shp, id_t id, smbios_memarray_ext_t *emap)
1083 {
1084         const smb_struct_t *stp = smb_lookup_id(shp, id);
1085         smb_memarray_ext_t exma;
1086 
1087         if (stp == NULL)
1088                 return (-1); /* errno is set for us */
1089 
1090         if (stp->smbst_hdr->smbh_type != SUN_OEM_EXT_MEMARRAY)
1091                 return (smb_set_errno(shp, ESMB_TYPE));
1092 
1093         smb_info_bcopy(stp->smbst_hdr, &exma, sizeof (exma));
1094         bzero(emap, sizeof (smbios_memarray_ext_t));
1095 
1096         emap->smbmae_ma = exma.smbmarre_ma;
1097         emap->smbmae_comp = exma.smbmarre_component;
1098         emap->smbmae_bdf = exma.smbmarre_bdf;
1099 
1100         return (0);
1101 }
1102 
1103 int
1104 smbios_info_extmemdevice(smbios_hdl_t *shp, id_t id,
1105     smbios_memdevice_ext_t *emdp)
1106 {
1107         const smb_struct_t *stp = smb_lookup_id(shp, id);
1108         smb_memdevice_ext_t exmd;
1109 
1110         if (stp == NULL)
1111                 return (-1); /* errno is set for us */
1112 
1113         if (stp->smbst_hdr->smbh_type != SUN_OEM_EXT_MEMDEVICE)
1114                 return (smb_set_errno(shp, ESMB_TYPE));
1115 
1116         smb_info_bcopy(stp->smbst_hdr, &exmd, sizeof (exmd));
1117         bzero(emdp, sizeof (smbios_memdevice_ext_t));
1118 
1119         emdp->smbmdeve_md = exmd.smbmdeve_mdev;
1120         emdp->smbmdeve_drch = exmd.smbmdeve_dchan;
1121         emdp->smbmdeve_ncs  = exmd.smbmdeve_ncs;
1122         emdp->smbmdeve_cs = exmd.smbmdeve_cs;
1123 
1124         return (0);
1125 }