source: bootcd/isolinux/syslinux-6.03/com32/gpllib/dmi/dmi.c

Last change on this file was e16e8f2, checked in by Edwin Eefting <edwin@datux.nl>, 3 years ago

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1/* ----------------------------------------------------------------------- *
2 *
3 *   Copyright 2006 Erwan Velu - All Rights Reserved
4 *
5 *   Permission is hereby granted, free of charge, to any person
6 *   obtaining a copy of this software and associated documentation
7 *   files (the "Software"), to deal in the Software without
8 *   restriction, including without limitation the rights to use,
9 *   copy, modify, merge, publish, distribute, sublicense, and/or
10 *   sell copies of the Software, and to permit persons to whom
11 *   the Software is furnished to do so, subject to the following
12 *   conditions:
13 *
14 *   The above copyright notice and this permission notice shall
15 *   be included in all copies or substantial portions of the Software.
16 *
17 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
19 *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
21 *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
22 *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23 *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24 *   OTHER DEALINGS IN THE SOFTWARE.
25 *
26 * -----------------------------------------------------------------------
27*/
28
29#include <stdio.h>
30#include <string.h>
31#include "dmi/dmi.h"
32
33const char *out_of_spec = "<OUT OF SPEC>";
34const char *bad_index = "<BAD INDEX>";
35
36/*
37 * Misc. util stuff
38 */
39
40/*
41 * 3.3.11 On Board Devices Information (Type 10)
42 */
43
44static const char *dmi_on_board_devices_type(uint8_t code)
45{
46    /* 3.3.11.1 */
47    static const char *type[] = {
48        "Other",                /* 0x01 */
49        "Unknown",
50        "Video",
51        "SCSI Controller",
52        "Ethernet",
53        "Token Ring",
54        "Sound",
55        "PATA Controller",
56        "SATA Controller",
57        "SAS Controller"        /* 0x0A */
58    };
59
60    if (code >= 0x01 && code <= 0x0A)
61        return type[code - 0x01];
62    return out_of_spec;
63}
64
65static void dmi_on_board_devices(struct dmi_header *h, s_dmi * dmi)
66{
67    uint8_t *p = h->data + 4;
68    uint8_t count = (h->length - 0x04) / 2;
69    unsigned int i;
70
71    for (i = 0;
72         i < count
73         && i <
74         sizeof dmi->base_board.devices_information /
75         sizeof *dmi->base_board.devices_information; i++) {
76        strlcpy(dmi->base_board.devices_information[i].type,
77                dmi_on_board_devices_type(p[2 * i] & 0x7F),
78                sizeof dmi->base_board.devices_information[i].type);
79        dmi->base_board.devices_information[i].status = p[2 * i] & 0x80;
80        strlcpy(dmi->base_board.devices_information[i].description,
81                dmi_string(h, p[2 * i + 1]),
82                sizeof dmi->base_board.devices_information[i].description);
83    }
84}
85
86/*
87 * 3.3.24 System Reset (Type 23)
88 */
89
90static const char *dmi_system_reset_boot_option(uint8_t code)
91{
92    static const char *option[] = {
93        "Operating System",     /* 0x1 */
94        "System Utilities",
95        "Do Not Reboot"         /* 0x3 */
96    };
97
98    if (code >= 0x1)
99        return option[code - 0x1];
100    return out_of_spec;
101}
102
103static void dmi_system_reset_count(uint16_t code, char *array)
104{
105    if (code == 0xFFFF)
106        strlcpy(array, "Unknown", sizeof array);
107    else
108        snprintf(array, sizeof array, "%u", code);
109}
110
111static void dmi_system_reset_timer(uint16_t code, char *array)
112{
113    if (code == 0xFFFF)
114        strlcpy(array, "Unknown", sizeof array);
115    else
116        snprintf(array, sizeof array, "%u min", code);
117}
118
119/*
120 * 3.3.25 Hardware Security (Type 24)
121 */
122
123static const char *dmi_hardware_security_status(uint8_t code)
124{
125    static const char *status[] = {
126        "Disabled",             /* 0x00 */
127        "Enabled",
128        "Not Implemented",
129        "Unknown"               /* 0x03 */
130    };
131
132    return status[code];
133}
134
135/*
136 * 3.3.12 OEM Strings (Type 11)
137 */
138
139static void dmi_oem_strings(struct dmi_header *h, const char *prefix,
140                            s_dmi * dmi)
141{
142    uint8_t *p = h->data + 4;
143    uint8_t count = p[0x00];
144    int i;
145
146    for (i = 1; i <= count; i++)
147        snprintf(dmi->oem_strings, OEM_STRINGS_SIZE, "%s %s %s\n",
148                 dmi->oem_strings, prefix, dmi_string(h, i));
149}
150
151/*
152 * 3.3.13 System Configuration Options (Type 12)
153 */
154static void dmi_system_configuration_options(struct dmi_header *h,
155                                             const char *prefix, s_dmi * dmi)
156{
157    uint8_t *p = h->data + 4;
158    uint8_t count = p[0x00];
159    int i;
160
161    for (i = 1; i <= count; i++)
162        snprintf(dmi->system.configuration_options,
163                 SYSTEM_CONFIGURATION_OPTIONS_SIZE, "%s %s %s\n",
164                 dmi->system.configuration_options, prefix, dmi_string(h, i));
165}
166
167static void dmi_system_boot_status(uint8_t code, char *array)
168{
169    static const char *status[] = {
170        "No errors detected",   /* 0 */
171        "No bootable media",
172        "Operating system failed to load",
173        "Firmware-detected hardware failure",
174        "Operating system-detected hardware failure",
175        "User-requested boot",
176        "System security violation",
177        "Previously-requested image",
178        "System watchdog timer expired" /* 8 */
179    };
180
181    if (code <= 8)
182        strlcpy(array, status[code], SYSTEM_BOOT_STATUS_SIZE);
183    if (code >= 128 && code <= 191)
184        strlcpy(array, "OEM-specific", SYSTEM_BOOT_STATUS_SIZE);
185    if (code >= 192)
186        strlcpy(array, "Product-specific", SYSTEM_BOOT_STATUS_SIZE);
187}
188
189void dmi_bios_runtime_size(uint32_t code, s_dmi * dmi)
190{
191    if (code & 0x000003FF) {
192        dmi->bios.runtime_size = code;
193        strlcpy(dmi->bios.runtime_size_unit, "bytes",
194                sizeof(dmi->bios.runtime_size_unit));
195    } else {
196        dmi->bios.runtime_size = code >> 10;
197        strlcpy(dmi->bios.runtime_size_unit, "KB",
198                sizeof(dmi->bios.runtime_size_unit));
199
200    }
201}
202
203void dmi_bios_characteristics(uint64_t code, s_dmi * dmi)
204{
205    int i;
206    /*
207     * This isn't very clear what this bit is supposed to mean
208     */
209    //if(code.l&(1<<3))
210    if (code && (1 << 3)) {
211        ((bool *) (&dmi->bios.characteristics))[0] = true;
212        return;
213    }
214
215    for (i = 4; i <= 31; i++)
216        //if(code.l&(1<<i))
217        if (code & (1 << i))
218            ((bool *) (&dmi->bios.characteristics))[i - 3] = true;
219}
220
221void dmi_bios_characteristics_x1(uint8_t code, s_dmi * dmi)
222{
223    int i;
224
225    for (i = 0; i <= 7; i++)
226        if (code & (1 << i))
227            ((bool *) (&dmi->bios.characteristics_x1))[i] = true;
228}
229
230void dmi_bios_characteristics_x2(uint8_t code, s_dmi * dmi)
231{
232    int i;
233
234    for (i = 0; i <= 2; i++)
235        if (code & (1 << i))
236            ((bool *) (&dmi->bios.characteristics_x2))[i] = true;
237}
238
239void dmi_system_uuid(uint8_t * p, s_dmi * dmi)
240{
241    int only0xFF = 1, only0x00 = 1;
242    int i;
243
244    for (i = 0; i < 16 && (only0x00 || only0xFF); i++) {
245        if (p[i] != 0x00)
246            only0x00 = 0;
247        if (p[i] != 0xFF)
248            only0xFF = 0;
249    }
250
251    if (only0xFF) {
252        sprintf(dmi->system.uuid, "Not Present");
253        return;
254    }
255    if (only0x00) {
256        sprintf(dmi->system.uuid, "Not Settable");
257        return;
258    }
259
260    sprintf(dmi->system.uuid,
261            "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
262            p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], p[9], p[10],
263            p[11], p[12], p[13], p[14], p[15]);
264}
265
266void dmi_system_wake_up_type(uint8_t code, s_dmi * dmi)
267{
268    /* 3.3.2.1 */
269    static const char *type[] = {
270        "Reserved",             /* 0x00 */
271        "Other",
272        "Unknown",
273        "APM Timer",
274        "Modem Ring",
275        "LAN Remote",
276        "Power Switch",
277        "PCI PME#",
278        "AC Power Restored"     /* 0x08 */
279    };
280
281    if (code <= 0x08) {
282        strlcpy(dmi->system.wakeup_type, type[code],
283                sizeof(dmi->system.wakeup_type));
284    } else {
285        strlcpy(dmi->system.wakeup_type, out_of_spec,
286                sizeof(dmi->system.wakeup_type));
287    }
288    return;
289}
290
291static void dmi_base_board_features(uint8_t code, s_dmi * dmi)
292{
293    if ((code & 0x1F) != 0) {
294        int i;
295
296        for (i = 0; i <= 4; i++)
297            if (code & (1 << i))
298                ((bool *) (&dmi->base_board.features))[i] = true;
299    }
300}
301
302static void dmi_base_board_type(uint8_t code, s_dmi * dmi)
303{
304    /* 3.3.3.2 */
305    static const char *type[] = {
306            "Unknown", /* 0x01 */
307            "Other",
308            "Server Blade",
309            "Connectivity Switch",
310            "System Management Module",
311            "Processor Module",
312            "I/O Module",
313            "Memory Module",
314            "Daughter Board",
315            "Motherboard",
316            "Processor+Memory Module",
317            "Processor+I/O Module",
318            "Interconnect Board" /* 0x0D */
319    };
320
321    if (code >= 0x01 && code <= 0x0D) {
322        strlcpy(dmi->base_board.type, type[code],
323                sizeof(dmi->base_board.type));
324    } else {
325        strlcpy(dmi->base_board.type, out_of_spec,
326                sizeof(dmi->base_board.type));
327    }
328    return;
329}
330
331static void dmi_processor_voltage(uint8_t code, s_dmi * dmi)
332{
333    /* 3.3.5.4 */
334    static const uint16_t voltage[] = {
335        5000,
336        3300,
337        2900
338    };
339    int i;
340
341    if (code & 0x80)
342        dmi->processor.voltage_mv = (code & 0x7f) * 100;
343    else {
344        for (i = 0; i <= 2; i++)
345            if (code & (1 << i))
346                dmi->processor.voltage_mv = voltage[i];
347    }
348}
349
350static void dmi_processor_id(uint8_t type, uint8_t * p, const char *version,
351                             s_dmi * dmi)
352{
353    /*
354     * Extra flags are now returned in the ECX register when one calls
355     * the CPUID instruction. Their meaning is explained in table 6, but
356     * DMI doesn't support this yet.
357     */
358    uint32_t eax, edx;
359    int sig = 0;
360
361    /*
362     * This might help learn about new processors supporting the
363     * CPUID instruction or another form of identification.
364     */
365    sprintf(dmi->processor.id, "ID: %02X %02X %02X %02X %02X %02X %02X %02X\n",
366            p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
367
368    if (type == 0x05) {         /* 80386 */
369        uint16_t dx = WORD(p);
370        /*
371         * 80386 have a different signature.
372         */
373        dmi->processor.signature.type = (dx >> 12);
374        dmi->processor.signature.family = ((dx >> 8) & 0xF);
375        dmi->processor.signature.stepping = (dx >> 4) & 0xF;
376        dmi->processor.signature.minor_stepping = (dx & 0xF);
377        return;
378    }
379    if (type == 0x06) {         /* 80486 */
380        uint16_t dx = WORD(p);
381        /*
382         * Not all 80486 CPU support the CPUID instruction, we have to find
383         * wether the one we have here does or not. Note that this trick
384         * works only because we know that 80486 must be little-endian.
385         */
386        if ((dx & 0x0F00) == 0x0400
387            && ((dx & 0x00F0) == 0x0040 || (dx & 0x00F0) >= 0x0070)
388            && ((dx & 0x000F) >= 0x0003))
389            sig = 1;
390        else {
391            dmi->processor.signature.type = ((dx >> 12) & 0x3);
392            dmi->processor.signature.family = ((dx >> 8) & 0xF);
393            dmi->processor.signature.model = ((dx >> 4) & 0xF);
394            dmi->processor.signature.stepping = (dx & 0xF);
395            return;
396        }
397    } else if ((type >= 0x0B && type <= 0x13)   /* Intel, Cyrix */
398               ||(type >= 0xB0 && type <= 0xB3) /* Intel */
399               ||type == 0xB5   /* Intel */
400               || type == 0xB9) /* Intel */
401        sig = 1;
402    else if ((type >= 0x18 && type <= 0x1D)     /* AMD */
403             ||type == 0x1F     /* AMD */
404             || (type >= 0xB6 && type <= 0xB7)  /* AMD */
405             ||(type >= 0x83 && type <= 0x85))  /* AMD */
406        sig = 2;
407    else if (type == 0x01 || type == 0x02) {
408        /*
409         * Some X86-class CPU have family "Other" or "Unknown". In this case,
410         * we use the version string to determine if they are known to
411         * support the CPUID instruction.
412         */
413        if (strncmp(version, "Pentium III MMX", 15) == 0)
414            sig = 1;
415        else if (strncmp(version, "AMD Athlon(TM)", 14) == 0
416                 || strncmp(version, "AMD Opteron(tm)", 15) == 0)
417            sig = 2;
418        else
419            return;
420    } else                      /* not X86-class */
421        return;
422
423    eax = DWORD(p);
424    edx = DWORD(p + 4);
425    switch (sig) {
426    case 1:                     /* Intel */
427        dmi->processor.signature.type = ((eax >> 12) & 0x3);
428        dmi->processor.signature.family =
429            (((eax >> 16) & 0xFF0) + ((eax >> 8) & 0x00F));
430        dmi->processor.signature.model =
431            (((eax >> 12) & 0xF0) + ((eax >> 4) & 0x0F));
432        dmi->processor.signature.stepping = (eax & 0xF);
433        break;
434    case 2:                     /* AMD */
435        dmi->processor.signature.family =
436            (((eax >> 8) & 0xF) == 0xF ? (eax >> 20) & 0xFF : (eax >> 8) & 0xF);
437        dmi->processor.signature.model =
438            (((eax >> 4) & 0xF) == 0xF ? (eax >> 16) & 0xF : (eax >> 4) & 0xF);
439        dmi->processor.signature.stepping = (eax & 0xF);
440        break;
441    }
442
443    edx = DWORD(p + 4);
444    if ((edx & 0x3FF7FDFF) != 0) {
445        int i;
446        for (i = 0; i <= 31; i++)
447            if (cpu_flags_strings[i] != NULL && edx & (1 << i))
448                ((bool *) (&dmi->processor.cpu_flags))[i] = true;
449    }
450}
451
452void to_dmi_header(struct dmi_header *h, uint8_t * data)
453{
454    h->type = data[0];
455    h->length = data[1];
456    h->handle = WORD(data + 2);
457    h->data = data;
458}
459
460const char *dmi_string(struct dmi_header *dm, uint8_t s)
461{
462    char *bp = (char *)dm->data;
463    size_t i, len;
464
465    if (s == 0)
466        return "Not Specified";
467
468    bp += dm->length;
469    while (s > 1 && *bp) {
470        bp += strlen(bp);
471        bp++;
472        s--;
473    }
474
475    if (!*bp)
476        return bad_index;
477
478    /* ASCII filtering */
479    len = strlen(bp);
480    for (i = 0; i < len; i++)
481        if (bp[i] < 32 || bp[i] == 127)
482            bp[i] = '.';
483
484    return bp;
485}
486
487int checksum(uint8_t * buf, int len)
488{
489    uint8_t sum = 0;
490    int a;
491
492    for (a = 0; a < len; a++)
493        sum += buf[a];
494    return (sum == 0);
495}
496
497static int smbios_decode(s_dmi * dmi, uint8_t * buf)
498{
499
500    dmi->dmitable.ver = (buf[0x06] << 8) + buf[0x07];
501    /* Some BIOS report weird SMBIOS version, fix that up */
502    switch (dmi->dmitable.ver) {
503    case 0x021F:
504        dmi->dmitable.ver = 0x0203;
505        break;
506    case 0x0233:
507        dmi->dmitable.ver = 0x0206;
508        break;
509    }
510    dmi->dmitable.major_version = dmi->dmitable.ver >> 8;
511    dmi->dmitable.minor_version = dmi->dmitable.ver & 0xFF;
512
513    return DMI_TABLE_PRESENT;
514}
515
516static int legacy_decode(s_dmi * dmi, uint8_t * buf)
517{
518    dmi->dmitable.num = buf[13] << 8 | buf[12];
519    dmi->dmitable.len = buf[7] << 8 | buf[6];
520    dmi->dmitable.base = buf[11] << 24 | buf[10] << 16 | buf[9] << 8 | buf[8];
521
522    /* Version already found? */
523    if (dmi->dmitable.ver > 0)
524        return DMI_TABLE_PRESENT;
525
526    dmi->dmitable.ver = (buf[0x06] << 8) + buf[0x07];
527
528    /*
529     * DMI version 0.0 means that the real version is taken from
530     * the SMBIOS version, which we don't know at this point.
531     */
532    if (buf[14] != 0) {
533        dmi->dmitable.major_version = buf[14] >> 4;
534        dmi->dmitable.minor_version = buf[14] & 0x0F;
535    } else {
536        dmi->dmitable.major_version = 0;
537        dmi->dmitable.minor_version = 0;
538    }
539    return DMI_TABLE_PRESENT;
540}
541
542int dmi_iterate(s_dmi * dmi)
543{
544    uint8_t *p, *q;
545    int found = 0;
546
547    /* Cleaning structures */
548    memset(dmi, 0, sizeof(s_dmi));
549
550    memset(&dmi->base_board, 0, sizeof(s_base_board));
551    memset(&dmi->battery, 0, sizeof(s_battery));
552    memset(&dmi->bios, 0, sizeof(s_bios));
553    memset(&dmi->chassis, 0, sizeof(s_chassis));
554    for (int i = 0; i < MAX_DMI_MEMORY_ITEMS; i++)
555        memset(&dmi->memory[i], 0, sizeof(s_memory));
556    memset(&dmi->processor, 0, sizeof(s_processor));
557    memset(&dmi->system, 0, sizeof(s_system));
558
559    /* Until we found this elements in the dmitable, we consider them as not filled */
560    dmi->base_board.filled = false;
561    dmi->battery.filled = false;
562    dmi->bios.filled = false;
563    dmi->chassis.filled = false;
564    for (int i = 0; i < MAX_DMI_MEMORY_ITEMS; i++)
565        dmi->memory[i].filled = false;
566    dmi->processor.filled = false;
567    dmi->system.filled = false;
568
569    p = (uint8_t *) 0xF0000;    /* The start address to look at the dmi table */
570    /* The anchor-string is 16-bytes aligned */
571    for (q = p; q < p + 0x10000; q += 16) {
572        /* To validate the presence of SMBIOS:
573         * + the overall checksum must be correct
574         * + the intermediate anchor-string must be _DMI_
575         * + the intermediate checksum must be correct
576         */
577        if (memcmp(q, "_SM_", 4) == 0 &&
578            checksum(q, q[0x05]) &&
579            memcmp(q + 0x10, "_DMI_", 5) == 0 && checksum(q + 0x10, 0x0F)) {
580            /* Do not return, legacy_decode will need to be called
581             * on the intermediate structure to get the table length
582             * and address
583             */
584            smbios_decode(dmi, q);
585        } else if (memcmp(q, "_DMI_", 5) == 0 && checksum(q, 0x0F)) {
586            found = 1;
587            legacy_decode(dmi, q);
588        }
589    }
590
591    if (found)
592        return DMI_TABLE_PRESENT;
593
594    dmi->dmitable.base = 0;
595    dmi->dmitable.num = 0;
596    dmi->dmitable.ver = 0;
597    dmi->dmitable.len = 0;
598    return -ENODMITABLE;
599}
600
601void dmi_decode(struct dmi_header *h, uint16_t ver, s_dmi * dmi)
602{
603    uint8_t *data = h->data;
604
605    /*
606     * Note: DMI types 37, 38 and 39 are untested
607     */
608    switch (h->type) {
609    case 0:                     /* 3.3.1 BIOS Information */
610        if (h->length < 0x12)
611            break;
612        dmi->bios.filled = true;
613        strlcpy(dmi->bios.vendor, dmi_string(h, data[0x04]),
614                sizeof(dmi->bios.vendor));
615        strlcpy(dmi->bios.version, dmi_string(h, data[0x05]),
616                sizeof(dmi->bios.version));
617        strlcpy(dmi->bios.release_date, dmi_string(h, data[0x08]),
618                sizeof(dmi->bios.release_date));
619        dmi->bios.address = WORD(data + 0x06);
620        dmi_bios_runtime_size((0x10000 - WORD(data + 0x06)) << 4, dmi);
621        dmi->bios.rom_size = (data[0x09] + 1) << 6;
622        strlcpy(dmi->bios.rom_size_unit, "kB", sizeof(dmi->bios.rom_size_unit));
623        dmi_bios_characteristics(QWORD(data + 0x0A), dmi);
624
625        if (h->length < 0x13)
626            break;
627        dmi_bios_characteristics_x1(data[0x12], dmi);
628        if (h->length < 0x14)
629            break;
630        dmi_bios_characteristics_x2(data[0x13], dmi);
631        if (h->length < 0x18)
632            break;
633        if (data[0x14] != 0xFF && data[0x15] != 0xFF)
634            snprintf(dmi->bios.bios_revision, sizeof(dmi->bios.bios_revision),
635                     "%u.%u", data[0x14], data[0x15]);
636        if (data[0x16] != 0xFF && data[0x17] != 0xFF)
637            snprintf(dmi->bios.firmware_revision,
638                     sizeof(dmi->bios.firmware_revision), "%u.%u", data[0x16],
639                     data[0x17]);
640        break;
641    case 1:                     /* 3.3.2 System Information */
642        if (h->length < 0x08)
643            break;
644        dmi->system.filled = true;
645        strlcpy(dmi->system.manufacturer, dmi_string(h, data[0x04]),
646                sizeof(dmi->system.manufacturer));
647        strlcpy(dmi->system.product_name, dmi_string(h, data[0x05]),
648                sizeof(dmi->system.product_name));
649        strlcpy(dmi->system.version, dmi_string(h, data[0x06]),
650                sizeof(dmi->system.version));
651        strlcpy(dmi->system.serial, dmi_string(h, data[0x07]),
652                sizeof(dmi->system.serial));
653        if (h->length < 0x19)
654            break;
655        dmi_system_uuid(data + 0x08, dmi);
656        dmi_system_wake_up_type(data[0x18], dmi);
657        if (h->length < 0x1B)
658            break;
659        strlcpy(dmi->system.sku_number, dmi_string(h, data[0x19]),
660                sizeof(dmi->system.sku_number));
661        strlcpy(dmi->system.family, dmi_string(h, data[0x1A]),
662                sizeof(dmi->system.family));
663        break;
664
665    case 2:                     /* 3.3.3 Base Board Information */
666        if (h->length < 0x08)
667            break;
668        dmi->base_board.filled = true;
669        strlcpy(dmi->base_board.manufacturer, dmi_string(h, data[0x04]),
670                sizeof(dmi->base_board.manufacturer));
671        strlcpy(dmi->base_board.product_name, dmi_string(h, data[0x05]),
672                sizeof(dmi->base_board.product_name));
673        strlcpy(dmi->base_board.version, dmi_string(h, data[0x06]),
674                sizeof(dmi->base_board.version));
675        strlcpy(dmi->base_board.serial, dmi_string(h, data[0x07]),
676                sizeof(dmi->base_board.serial));
677        if (h->length < 0x0F)
678            break;
679        strlcpy(dmi->base_board.asset_tag, dmi_string(h, data[0x08]),
680                sizeof(dmi->base_board.asset_tag));
681        dmi_base_board_features(data[0x09], dmi);
682        strlcpy(dmi->base_board.location, dmi_string(h, data[0x0A]),
683                sizeof(dmi->base_board.location));
684        dmi_base_board_type(data[0x0D], dmi);
685        if (h->length < 0x0F + data[0x0E] * sizeof(uint16_t))
686            break;
687        break;
688    case 3:                     /* 3.3.4 Chassis Information */
689        if (h->length < 0x09)
690            break;
691        dmi->chassis.filled = true;
692        strlcpy(dmi->chassis.manufacturer, dmi_string(h, data[0x04]),
693                sizeof(dmi->chassis.manufacturer));
694        strlcpy(dmi->chassis.type, dmi_chassis_type(data[0x05] & 0x7F),
695                sizeof(dmi->chassis.type));
696        strlcpy(dmi->chassis.lock, dmi_chassis_lock(data[0x05] >> 7),
697                sizeof(dmi->chassis.lock));
698        strlcpy(dmi->chassis.version, dmi_string(h, data[0x06]),
699                sizeof(dmi->chassis.version));
700        strlcpy(dmi->chassis.serial, dmi_string(h, data[0x07]),
701                sizeof(dmi->chassis.serial));
702        strlcpy(dmi->chassis.asset_tag, dmi_string(h, data[0x08]),
703                sizeof(dmi->chassis.asset_tag));
704        if (h->length < 0x0D)
705            break;
706        strlcpy(dmi->chassis.boot_up_state, dmi_chassis_state(data[0x09]),
707                sizeof(dmi->chassis.boot_up_state));
708        strlcpy(dmi->chassis.power_supply_state,
709                dmi_chassis_state(data[0x0A]),
710                sizeof(dmi->chassis.power_supply_state));
711        strlcpy(dmi->chassis.thermal_state,
712                dmi_chassis_state(data[0x0B]),
713                sizeof(dmi->chassis.thermal_state));
714        strlcpy(dmi->chassis.security_status,
715                dmi_chassis_security_status(data[0x0C]),
716                sizeof(dmi->chassis.security_status));
717        if (h->length < 0x11)
718            break;
719        snprintf(dmi->chassis.oem_information,
720                 sizeof(dmi->chassis.oem_information), "0x%08X",
721                 DWORD(data + 0x0D));
722        if (h->length < 0x15)
723            break;
724        dmi->chassis.height = data[0x11];
725        dmi->chassis.nb_power_cords = data[0x12];
726        break;
727    case 4:                     /* 3.3.5 Processor Information */
728        if (h->length < 0x1A)
729            break;
730        dmi->processor.filled = true;
731        strlcpy(dmi->processor.socket_designation,
732                dmi_string(h, data[0x04]),
733                sizeof(dmi->processor.socket_designation));
734        strlcpy(dmi->processor.type,
735                dmi_processor_type(data[0x05]), sizeof(dmi->processor.type));
736        strlcpy(dmi->processor.manufacturer,
737                dmi_string(h, data[0x07]), sizeof(dmi->processor.manufacturer));
738        strlcpy(dmi->processor.family,
739                dmi_processor_family(data[0x06],
740                                     dmi->processor.manufacturer),
741                sizeof(dmi->processor.family));
742        dmi_processor_id(data[0x06], data + 8, dmi_string(h, data[0x10]), dmi);
743        strlcpy(dmi->processor.version,
744                dmi_string(h, data[0x10]), sizeof(dmi->processor.version));
745        dmi_processor_voltage(data[0x11], dmi);
746        dmi->processor.external_clock = WORD(data + 0x12);
747        dmi->processor.max_speed = WORD(data + 0x14);
748        dmi->processor.current_speed = WORD(data + 0x16);
749        if (data[0x18] & (1 << 6))
750            strlcpy(dmi->processor.status,
751                    dmi_processor_status(data[0x18] & 0x07),
752                    sizeof(dmi->processor.status));
753        else
754            sprintf(dmi->processor.status, "Unpopulated");
755        strlcpy(dmi->processor.upgrade,
756                dmi_processor_upgrade(data[0x19]),
757                sizeof(dmi->processor.upgrade));
758        if (h->length < 0x20)
759            break;
760        dmi_processor_cache(WORD(data + 0x1A), "L1", ver,
761                            dmi->processor.cache1);
762        dmi_processor_cache(WORD(data + 0x1C), "L2", ver,
763                            dmi->processor.cache2);
764        dmi_processor_cache(WORD(data + 0x1E), "L3", ver,
765                            dmi->processor.cache3);
766        if (h->length < 0x23)
767            break;
768        strlcpy(dmi->processor.serial, dmi_string(h, data[0x20]),
769                sizeof(dmi->processor.serial));
770        strlcpy(dmi->processor.asset_tag, dmi_string(h, data[0x21]),
771                sizeof(dmi->processor.asset_tag));
772        strlcpy(dmi->processor.part_number, dmi_string(h, data[0x22]),
773                sizeof(dmi->processor.part_number));
774        dmi->processor.core_count = 0;
775        dmi->processor.core_enabled = 0;
776        dmi->processor.thread_count = 0;
777        if (h->length < 0x28)
778            break;
779        dmi->processor.core_count = data[0x23];
780        dmi->processor.core_enabled = data[0x24];
781        dmi->processor.thread_count = data[0x25];
782        break;
783    case 6:                     /* 3.3.7 Memory Module Information */
784        if (h->length < 0x0C)
785            break;
786        dmi->memory_module_count++;
787        s_memory_module *module =
788            &dmi->memory_module[dmi->memory_module_count - 1];
789        dmi->memory_module[dmi->memory_module_count - 1].filled = true;
790        strlcpy(module->socket_designation, dmi_string(h, data[0x04]),
791                sizeof(module->socket_designation));
792        dmi_memory_module_connections(data[0x05], module->bank_connections, sizeof(module->bank_connections));
793        dmi_memory_module_speed(data[0x06], module->speed);
794        dmi_memory_module_types(WORD(data + 0x07), " ", module->type, sizeof(module->type));
795        dmi_memory_module_size(data[0x09], module->installed_size, sizeof(module->installed_size));
796        dmi_memory_module_size(data[0x0A], module->enabled_size, sizeof(module->enabled_size));
797        dmi_memory_module_error(data[0x0B], "\t\t", module->error_status);
798        break;
799    case 7:                     /* 3.3.8 Cache Information */
800        if (h->length < 0x0F)
801            break;
802        dmi->cache_count++;
803        if (dmi->cache_count > MAX_DMI_CACHE_ITEMS)
804            break;
805        strlcpy(dmi->cache[dmi->cache_count - 1].socket_designation,
806                dmi_string(h, data[0x04]),
807                sizeof(dmi->cache[dmi->cache_count - 1].socket_designation));
808        snprintf(dmi->cache[dmi->cache_count - 1].configuration,
809                 sizeof(dmi->cache[dmi->cache_count - 1].configuration),
810                 "%s, %s, %u",
811                 WORD(data + 0x05) & 0x0080 ? "Enabled" : "Disabled",
812                 WORD(data +
813                      0x05) & 0x0008 ? "Socketed" : "Not Socketed",
814                 (WORD(data + 0x05) & 0x0007) + 1);
815        strlcpy(dmi->cache[dmi->cache_count - 1].mode,
816                dmi_cache_mode((WORD(data + 0x05) >> 8) & 0x0003),
817                sizeof(dmi->cache[dmi->cache_count - 1].mode));
818        strlcpy(dmi->cache[dmi->cache_count - 1].location,
819                dmi_cache_location((WORD(data + 0x05) >> 5) & 0x0003),
820                sizeof(dmi->cache[dmi->cache_count - 1].location));
821        dmi->cache[dmi->cache_count - 1].installed_size =
822            dmi_cache_size(WORD(data + 0x09));
823        dmi->cache[dmi->cache_count - 1].max_size =
824            dmi_cache_size(WORD(data + 0x07));
825        dmi_cache_types(WORD(data + 0x0B), " ",
826                        dmi->cache[dmi->cache_count - 1].supported_sram_types);
827        dmi_cache_types(WORD(data + 0x0D), " ",
828                        dmi->cache[dmi->cache_count - 1].installed_sram_types);
829        if (h->length < 0x13)
830            break;
831        dmi->cache[dmi->cache_count - 1].speed = data[0x0F];    /* ns */
832        strlcpy(dmi->cache[dmi->cache_count - 1].error_correction_type,
833                dmi_cache_ec_type(data[0x10]),
834                sizeof(dmi->cache[dmi->cache_count - 1].error_correction_type));
835        strlcpy(dmi->cache[dmi->cache_count - 1].system_type,
836                dmi_cache_type(data[0x11]),
837                sizeof(dmi->cache[dmi->cache_count - 1].system_type));
838        strlcpy(dmi->cache[dmi->cache_count - 1].associativity,
839                dmi_cache_associativity(data[0x12]),
840                sizeof(dmi->cache[dmi->cache_count - 1].associativity));
841        break;
842    case 10:                    /* 3.3.11 On Board Devices Information */
843        dmi_on_board_devices(h, dmi);
844        break;
845    case 11:                    /* 3.3.12 OEM Strings */
846        if (h->length < 0x05)
847            break;
848        dmi_oem_strings(h, "\t", dmi);
849        break;
850    case 12:                    /* 3.3.13 System Configuration Options */
851        if (h->length < 0x05)
852            break;
853        dmi_system_configuration_options(h, "\t", dmi);
854        break;
855    case 17:                    /* 3.3.18 Memory Device */
856        if (h->length < 0x15)
857            break;
858        dmi->memory_count++;
859        if (dmi->memory_count > MAX_DMI_MEMORY_ITEMS)
860            break;
861        s_memory *mem = &dmi->memory[dmi->memory_count - 1];
862        dmi->memory[dmi->memory_count - 1].filled = true;
863        dmi_memory_array_error_handle(WORD(data + 0x06), mem->error);
864        dmi_memory_device_width(WORD(data + 0x08), mem->total_width);
865        dmi_memory_device_width(WORD(data + 0x0A), mem->data_width);
866        dmi_memory_device_size(WORD(data + 0x0C), mem->size);
867        strlcpy(mem->form_factor,
868                dmi_memory_device_form_factor(data[0x0E]),
869                sizeof(mem->form_factor));
870        dmi_memory_device_set(data[0x0F], mem->device_set);
871        strlcpy(mem->device_locator, dmi_string(h, data[0x10]),
872                sizeof(mem->device_locator));
873        strlcpy(mem->bank_locator, dmi_string(h, data[0x11]),
874                sizeof(mem->bank_locator));
875        strlcpy(mem->type, dmi_memory_device_type(data[0x12]),
876                sizeof(mem->type));
877        dmi_memory_device_type_detail(WORD(data + 0x13), mem->type_detail, sizeof(mem->type_detail));
878        if (h->length < 0x17)
879            break;
880        dmi_memory_device_speed(WORD(data + 0x15), mem->speed);
881        if (h->length < 0x1B)
882            break;
883        strlcpy(mem->manufacturer, dmi_string(h, data[0x17]),
884                sizeof(mem->manufacturer));
885        strlcpy(mem->serial, dmi_string(h, data[0x18]), sizeof(mem->serial));
886        strlcpy(mem->asset_tag, dmi_string(h, data[0x19]),
887                sizeof(mem->asset_tag));
888        strlcpy(mem->part_number, dmi_string(h, data[0x1A]),
889                sizeof(mem->part_number));
890        break;
891    case 22:                    /* 3.3.23 Portable Battery */
892        if (h->length < 0x10)
893            break;
894        dmi->battery.filled = true;
895        strlcpy(dmi->battery.location, dmi_string(h, data[0x04]),
896                sizeof(dmi->battery.location));
897        strlcpy(dmi->battery.manufacturer, dmi_string(h, data[0x05]),
898                sizeof(dmi->battery.manufacturer));
899        if (data[0x06] || h->length < 0x1A)
900            strlcpy(dmi->battery.manufacture_date,
901                    dmi_string(h, data[0x06]),
902                    sizeof(dmi->battery.manufacture_date));
903        if (data[0x07] || h->length < 0x1A)
904            strlcpy(dmi->battery.serial, dmi_string(h, data[0x07]),
905                    sizeof(dmi->battery.serial));
906        strlcpy(dmi->battery.name, dmi_string(h, data[0x08]),
907                sizeof(dmi->battery.name));
908        if (data[0x09] != 0x02 || h->length < 0x1A)
909            strlcpy(dmi->battery.chemistry,
910                    dmi_battery_chemistry(data[0x09]),
911                    sizeof(dmi->battery.chemistry));
912        if (h->length < 0x1A)
913            dmi_battery_capacity(WORD(data + 0x0A), 1,
914                                 dmi->battery.design_capacity);
915        else
916            dmi_battery_capacity(WORD(data + 0x0A), data[0x15],
917                                 dmi->battery.design_capacity);
918        dmi_battery_voltage(WORD(data + 0x0C), dmi->battery.design_voltage);
919        strlcpy(dmi->battery.sbds, dmi_string(h, data[0x0E]),
920                sizeof(dmi->battery.sbds));
921        dmi_battery_maximum_error(data[0x0F], dmi->battery.maximum_error);
922        if (h->length < 0x1A)
923            break;
924        if (data[0x07] == 0)
925            sprintf(dmi->battery.sbds_serial, "%04X", WORD(data + 0x10));
926        if (data[0x06] == 0)
927            sprintf(dmi->battery.sbds_manufacture_date, "%u-%02u-%02u",
928                    1980 + (WORD(data + 0x12) >> 9),
929                    (WORD(data + 0x12) >> 5) & 0x0F, WORD(data + 0x12) & 0x1F);
930        if (data[0x09] == 0x02)
931            strlcpy(dmi->battery.sbds_chemistry, dmi_string(h, data[0x14]),
932                    sizeof(dmi->battery.sbds_chemistry));
933        //      sprintf(dmi->battery.oem_info,"0x%08X",DWORD(h, data+0x16));
934        break;
935    case 23:                    /* 3.3.24 System Reset */
936        if (h->length < 0x0D)
937            break;
938        dmi->system.system_reset.filled = true;
939        dmi->system.system_reset.status = data[0x04] & (1 << 0);
940        dmi->system.system_reset.watchdog = data[0x04] & (1 << 5);
941        if (!(data[0x04] & (1 << 5)))
942            break;
943        strlcpy(dmi->system.system_reset.boot_option,
944                dmi_system_reset_boot_option((data[0x04] >> 1) & 0x3),
945                sizeof dmi->system.system_reset.boot_option);
946        strlcpy(dmi->system.system_reset.boot_option_on_limit,
947                dmi_system_reset_boot_option((data[0x04] >> 3) & 0x3),
948                sizeof dmi->system.system_reset.boot_option_on_limit);
949        dmi_system_reset_count(WORD(data + 0x05),
950                               dmi->system.system_reset.reset_count);
951        dmi_system_reset_count(WORD(data + 0x07),
952                               dmi->system.system_reset.reset_limit);
953        dmi_system_reset_timer(WORD(data + 0x09),
954                               dmi->system.system_reset.timer_interval);
955        dmi_system_reset_timer(WORD(data + 0x0B),
956                               dmi->system.system_reset.timeout);
957        break;
958    case 24:                    /* 3.3.25 Hardware Security */
959        if (h->length < 0x05)
960            break;
961        dmi->hardware_security.filled = true;
962        strlcpy(dmi->hardware_security.power_on_passwd_status,
963                dmi_hardware_security_status(data[0x04] >> 6),
964                sizeof dmi->hardware_security.power_on_passwd_status);
965        strlcpy(dmi->hardware_security.keyboard_passwd_status,
966                dmi_hardware_security_status((data[0x04] >> 4) & 0x3),
967                sizeof dmi->hardware_security.keyboard_passwd_status);
968        strlcpy(dmi->hardware_security.administrator_passwd_status,
969                dmi_hardware_security_status((data[0x04] >> 2) & 0x3),
970                sizeof dmi->hardware_security.administrator_passwd_status);
971        strlcpy(dmi->hardware_security.front_panel_reset_status,
972                dmi_hardware_security_status(data[0x04] & 0x3),
973                sizeof dmi->hardware_security.front_panel_reset_status);
974        break;
975    case 32:                    /* 3.3.33 System Boot Information */
976        if (h->length < 0x0B)
977            break;
978        dmi_system_boot_status(data[0x0A], dmi->system.system_boot_status);
979    case 38:                    /* 3.3.39 IPMI Device Information */
980        if (h->length < 0x10)
981            break;
982        dmi->ipmi.filled = true;
983        snprintf(dmi->ipmi.interface_type,
984                 sizeof(dmi->ipmi.interface_type), "%s",
985                 dmi_ipmi_interface_type(data[0x04]));
986        dmi->ipmi.major_specification_version = data[0x05] >> 4;
987        dmi->ipmi.minor_specification_version = data[0x05] & 0x0F;
988        dmi->ipmi.I2C_slave_address = data[0x06] >> 1;
989        if (data[0x07] != 0xFF)
990            dmi->ipmi.nv_address = data[0x07];
991        else
992            dmi->ipmi.nv_address = 0;   /* Not Present */
993        dmi_ipmi_base_address(data[0x04], data + 0x08, &dmi->ipmi);
994        if (h->length < 0x12)
995            break;
996        if (data[0x11] != 0x00) {
997            dmi->ipmi.irq = data[0x11];
998        }
999        break;
1000    }
1001}
1002
1003void parse_dmitable(s_dmi * dmi)
1004{
1005    int i = 0;
1006    uint8_t *data = NULL;
1007    uint8_t buf[dmi->dmitable.len];
1008    memcpy(buf, (int *)dmi->dmitable.base, sizeof(uint8_t) * dmi->dmitable.len);
1009    data = buf;
1010    dmi->memory_count = 0;
1011    while (i < dmi->dmitable.num && data + 4 <= buf + dmi->dmitable.len) {      /* 4 is the length of an SMBIOS structure header */
1012        uint8_t *next;
1013        struct dmi_header h;
1014        to_dmi_header(&h, data);
1015        /*
1016         * If a short entry is found (less than 4 bytes), not only it
1017         * is invalid, but we cannot reliably locate the next entry.
1018         * Better stop at this point, and let the user know his/her
1019         * table is broken.
1020         */
1021        if (h.length < 4) {
1022            printf
1023                ("Invalid entry length (%u). DMI table is broken! Stop.\n\n",
1024                 (unsigned int)h.length);
1025            break;
1026        }
1027
1028        /* loo for the next handle */
1029        next = data + h.length;
1030        while (next - buf + 1 < dmi->dmitable.len
1031               && (next[0] != 0 || next[1] != 0))
1032            next++;
1033        next += 2;
1034        if (next - buf <= dmi->dmitable.len) {
1035            dmi_decode(&h, dmi->dmitable.ver, dmi);
1036        }
1037        data = next;
1038        i++;
1039    }
1040}
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