| 1 | /* $NetBSD: platform.c,v 1.15 2014/03/26 08:04:19 christos Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2007 Jared D. McNeill <jmcneill@invisible.ca> |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 17 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 18 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 26 | * POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include "isa.h" |
| 30 | |
| 31 | #include <sys/cdefs.h> |
| 32 | __KERNEL_RCSID(0, "$NetBSD: platform.c,v 1.15 2014/03/26 08:04:19 christos Exp $" ); |
| 33 | |
| 34 | #include <sys/types.h> |
| 35 | #include <sys/param.h> |
| 36 | #include <sys/kernel.h> |
| 37 | #include <sys/sysctl.h> |
| 38 | #include <sys/uuid.h> |
| 39 | #include <sys/pmf.h> |
| 40 | |
| 41 | #if NISA > 0 |
| 42 | #include <dev/isa/isavar.h> |
| 43 | #endif |
| 44 | |
| 45 | #include <arch/x86/include/smbiosvar.h> |
| 46 | |
| 47 | static int platform_dminode = CTL_EOL; |
| 48 | |
| 49 | void platform_init(void); /* XXX */ |
| 50 | static void platform_add(struct smbtable *, const char *, int); |
| 51 | static void platform_add_date(struct smbtable *, const char *, int); |
| 52 | static void platform_add_uuid(struct smbtable *, const char *, |
| 53 | const uint8_t *); |
| 54 | static int platform_dmi_sysctl(SYSCTLFN_PROTO); |
| 55 | static void platform_print(void); |
| 56 | |
| 57 | /* list of private DMI sysctl nodes */ |
| 58 | static const char *platform_private_nodes[] = { |
| 59 | "board-serial" , |
| 60 | "system-serial" , |
| 61 | "system-uuid" , |
| 62 | NULL |
| 63 | }; |
| 64 | |
| 65 | void |
| 66 | platform_init(void) |
| 67 | { |
| 68 | struct smbtable smbios; |
| 69 | struct smbios_sys *psys; |
| 70 | struct smbios_struct_bios *pbios; |
| 71 | struct smbios_board *pboard; |
| 72 | struct smbios_slot *pslot; |
| 73 | int nisa, nother; |
| 74 | |
| 75 | smbios.cookie = 0; |
| 76 | if (smbios_find_table(SMBIOS_TYPE_SYSTEM, &smbios)) { |
| 77 | psys = smbios.tblhdr; |
| 78 | |
| 79 | platform_add(&smbios, "system-vendor" , psys->vendor); |
| 80 | platform_add(&smbios, "system-product" , psys->product); |
| 81 | platform_add(&smbios, "system-version" , psys->version); |
| 82 | platform_add(&smbios, "system-serial" , psys->serial); |
| 83 | platform_add_uuid(&smbios, "system-uuid" , psys->uuid); |
| 84 | } |
| 85 | |
| 86 | smbios.cookie = 0; |
| 87 | if (smbios_find_table(SMBIOS_TYPE_BIOS, &smbios)) { |
| 88 | pbios = smbios.tblhdr; |
| 89 | |
| 90 | platform_add(&smbios, "bios-vendor" , pbios->vendor); |
| 91 | platform_add(&smbios, "bios-version" , pbios->version); |
| 92 | platform_add_date(&smbios, "bios-date" , pbios->release); |
| 93 | } |
| 94 | |
| 95 | smbios.cookie = 0; |
| 96 | if (smbios_find_table(SMBIOS_TYPE_BASEBOARD, &smbios)) { |
| 97 | pboard = smbios.tblhdr; |
| 98 | |
| 99 | platform_add(&smbios, "board-vendor" , pboard->vendor); |
| 100 | platform_add(&smbios, "board-product" , pboard->product); |
| 101 | platform_add(&smbios, "board-version" , pboard->version); |
| 102 | platform_add(&smbios, "board-serial" , pboard->serial); |
| 103 | platform_add(&smbios, "board-asset-tag" , pboard->asset); |
| 104 | } |
| 105 | |
| 106 | smbios.cookie = 0; |
| 107 | nisa = 0; |
| 108 | nother = 0; |
| 109 | while (smbios_find_table(SMBIOS_TYPE_SLOTS, &smbios)) { |
| 110 | pslot = smbios.tblhdr; |
| 111 | switch (pslot->type) { |
| 112 | case SMBIOS_SLOT_ISA: |
| 113 | case SMBIOS_SLOT_EISA: |
| 114 | nisa++; |
| 115 | break; |
| 116 | default: |
| 117 | nother++; |
| 118 | break; |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | #if NISA > 0 |
| 123 | if ((nother | nisa) != 0) { |
| 124 | /* Only if there seems to be good expansion slot info. */ |
| 125 | isa_set_slotcount(nisa); |
| 126 | } |
| 127 | #endif |
| 128 | |
| 129 | platform_print(); |
| 130 | } |
| 131 | |
| 132 | static void |
| 133 | platform_print(void) |
| 134 | { |
| 135 | const char *vend, *prod, *ver; |
| 136 | |
| 137 | vend = pmf_get_platform("system-vendor" ); |
| 138 | prod = pmf_get_platform("system-product" ); |
| 139 | ver = pmf_get_platform("system-version" ); |
| 140 | |
| 141 | if (vend == NULL) |
| 142 | aprint_verbose("Generic" ); |
| 143 | else |
| 144 | aprint_verbose("%s" , vend); |
| 145 | if (prod == NULL) |
| 146 | aprint_verbose(" PC" ); |
| 147 | else |
| 148 | aprint_verbose(" %s" , prod); |
| 149 | if (ver != NULL) |
| 150 | aprint_verbose(" (%s)" , ver); |
| 151 | aprint_verbose("\n" ); |
| 152 | } |
| 153 | |
| 154 | static bool |
| 155 | platform_sysctl_is_private(const char *key) |
| 156 | { |
| 157 | unsigned int n; |
| 158 | |
| 159 | for (n = 0; platform_private_nodes[n] != NULL; n++) { |
| 160 | if (strcmp(key, platform_private_nodes[n]) == 0) { |
| 161 | return true; |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | return false; |
| 166 | } |
| 167 | |
| 168 | static void |
| 169 | platform_create_sysctl(const char *key) |
| 170 | { |
| 171 | int flags = 0, err; |
| 172 | |
| 173 | if (pmf_get_platform(key) == NULL) |
| 174 | return; |
| 175 | |
| 176 | /* If the key is marked private, set CTLFLAG_PRIVATE flag */ |
| 177 | if (platform_sysctl_is_private(key)) |
| 178 | flags |= CTLFLAG_PRIVATE; |
| 179 | |
| 180 | err = sysctl_createv(NULL, 0, NULL, NULL, |
| 181 | CTLFLAG_READONLY | flags, CTLTYPE_STRING, |
| 182 | key, NULL, platform_dmi_sysctl, 0, NULL, 0, |
| 183 | CTL_MACHDEP, platform_dminode, CTL_CREATE, CTL_EOL); |
| 184 | if (err != 0) |
| 185 | printf("platform: sysctl_createv " |
| 186 | "(machdep.dmi.%s) failed, err = %d\n" , |
| 187 | key, err); |
| 188 | } |
| 189 | |
| 190 | static void |
| 191 | platform_add(struct smbtable *tbl, const char *key, int idx) |
| 192 | { |
| 193 | char tmpbuf[128]; /* XXX is this long enough? */ |
| 194 | |
| 195 | if (smbios_get_string(tbl, idx, tmpbuf, 128) != NULL) { |
| 196 | /* add to platform dictionary */ |
| 197 | pmf_set_platform(key, tmpbuf); |
| 198 | |
| 199 | /* create sysctl node */ |
| 200 | platform_create_sysctl(key); |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | static int |
| 205 | platform_scan_date(char *buf, unsigned int *month, unsigned int *day, |
| 206 | unsigned int *year) |
| 207 | { |
| 208 | char *p, *s; |
| 209 | |
| 210 | s = buf; |
| 211 | p = strchr(s, '/'); |
| 212 | if (p) *p = '\0'; |
| 213 | *month = strtoul(s, NULL, 10); |
| 214 | if (!p) return 1; |
| 215 | |
| 216 | s = p + 1; |
| 217 | p = strchr(s, '/'); |
| 218 | if (p) *p = '\0'; |
| 219 | *day = strtoul(s, NULL, 10); |
| 220 | if (!p) return 2; |
| 221 | |
| 222 | s = p + 1; |
| 223 | *year = strtoul(s, NULL, 10); |
| 224 | return 3; |
| 225 | } |
| 226 | |
| 227 | static void |
| 228 | platform_add_date(struct smbtable *tbl, const char *key, int idx) |
| 229 | { |
| 230 | unsigned int month, day, year; |
| 231 | char tmpbuf[128], datestr[9]; |
| 232 | |
| 233 | if (smbios_get_string(tbl, idx, tmpbuf, 128) == NULL) |
| 234 | return; |
| 235 | if (platform_scan_date(tmpbuf, &month, &day, &year) != 3) |
| 236 | return; |
| 237 | if (month == 0 || month > 12 || day == 0 || day > 31) |
| 238 | return; |
| 239 | if (year > 9999) |
| 240 | return; |
| 241 | if (year < 70) |
| 242 | year += 2000; |
| 243 | else if (year < 100) |
| 244 | year += 1900; |
| 245 | snprintf(datestr, sizeof(datestr), "%04u%02u%02u" , year, month, day); |
| 246 | pmf_set_platform(key, datestr); |
| 247 | platform_create_sysctl(key); |
| 248 | } |
| 249 | |
| 250 | static void |
| 251 | platform_add_uuid(struct smbtable *tbl, const char *key, const uint8_t *buf) |
| 252 | { |
| 253 | struct uuid uuid; |
| 254 | char tmpbuf[UUID_STR_LEN]; |
| 255 | |
| 256 | uuid_dec_le(buf, &uuid); |
| 257 | uuid_snprintf(tmpbuf, sizeof(tmpbuf), &uuid); |
| 258 | |
| 259 | pmf_set_platform(key, tmpbuf); |
| 260 | platform_create_sysctl(key); |
| 261 | } |
| 262 | |
| 263 | static int |
| 264 | platform_dmi_sysctl(SYSCTLFN_ARGS) |
| 265 | { |
| 266 | struct sysctlnode node; |
| 267 | const char *v; |
| 268 | int err = 0; |
| 269 | |
| 270 | node = *rnode; |
| 271 | |
| 272 | v = pmf_get_platform(node.sysctl_name); |
| 273 | if (v == NULL) |
| 274 | return ENOENT; |
| 275 | |
| 276 | node.sysctl_data = __UNCONST(v); |
| 277 | err = sysctl_lookup(SYSCTLFN_CALL(&node)); |
| 278 | if (err || newp == NULL) |
| 279 | return err; |
| 280 | |
| 281 | return 0; |
| 282 | } |
| 283 | |
| 284 | SYSCTL_SETUP(sysctl_dmi_setup, "sysctl machdep.dmi subtree setup" ) |
| 285 | { |
| 286 | const struct sysctlnode *rnode; |
| 287 | int err; |
| 288 | |
| 289 | err = sysctl_createv(clog, 0, NULL, &rnode, |
| 290 | CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep" , |
| 291 | NULL, NULL, 0, NULL, 0, |
| 292 | CTL_MACHDEP, CTL_EOL); |
| 293 | if (err) |
| 294 | return; |
| 295 | |
| 296 | err = sysctl_createv(clog, 0, &rnode, &rnode, |
| 297 | CTLFLAG_PERMANENT, CTLTYPE_NODE, "dmi" , |
| 298 | SYSCTL_DESCR("DMI table information" ), |
| 299 | NULL, 0, NULL, 0, |
| 300 | CTL_CREATE, CTL_EOL); |
| 301 | if (err) |
| 302 | return; |
| 303 | |
| 304 | platform_dminode = rnode->sysctl_num; |
| 305 | } |
| 306 | |