Line data Source code
1 : /* Copyright (C) 2020 Wildfire Games.
2 : *
3 : * Permission is hereby granted, free of charge, to any person obtaining
4 : * a copy of this software and associated documentation files (the
5 : * "Software"), to deal in the Software without restriction, including
6 : * without limitation the rights to use, copy, modify, merge, publish,
7 : * distribute, sublicense, and/or sell copies of the Software, and to
8 : * permit persons to whom the Software is furnished to do so, subject to
9 : * the following conditions:
10 : *
11 : * The above copyright notice and this permission notice shall be included
12 : * in all copies or substantial portions of the Software.
13 : *
14 : * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
15 : * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16 : * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
17 : * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
18 : * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
19 : * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
20 : * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 : */
22 :
23 : /*
24 : * provide access to System Management BIOS information
25 : */
26 :
27 : #include "precompiled.h"
28 : #include "lib/sysdep/smbios.h"
29 :
30 : #include "lib/bits.h"
31 : #include "lib/alignment.h"
32 : #include "lib/byte_order.h" // FOURCC_BE
33 : #include "lib/module_init.h"
34 :
35 : #if OS_WIN
36 : # include "lib/sysdep/os/win/wutil.h"
37 : # include "lib/sysdep/os/win/wfirmware.h"
38 : #endif
39 :
40 : #include <cstring>
41 : #include <sstream>
42 : #include <vector>
43 :
44 : namespace SMBIOS {
45 :
46 : //-----------------------------------------------------------------------------
47 : // GetTable
48 :
49 : #if OS_WIN
50 :
51 : static Status GetTable(wfirmware::Table& table)
52 : {
53 : // (MSDN mentions 'RSMB', but multi-character literals are implementation-defined.)
54 : const DWORD provider = FOURCC_BE('R','S','M','B');
55 :
56 : // (MSDN says this will be 0, but we'll retrieve it for 100% correctness.)
57 : wfirmware::TableIds tableIds = wfirmware::GetTableIDs(provider);
58 : if(tableIds.empty())
59 : return ERR::_1; // NOWARN (happens on 32-bit XP)
60 :
61 : table = wfirmware::GetTable(provider, tableIds[0]);
62 : if(table.empty())
63 : WARN_RETURN(ERR::_2);
64 :
65 : // strip the WmiHeader
66 : struct WmiHeader
67 : {
68 : u8 used20CallingMethod;
69 : u8 majorVersion;
70 : u8 minorVersion;
71 : u8 dmiRevision;
72 : u32 length;
73 : };
74 : const WmiHeader* wmiHeader = (const WmiHeader*)&table[0];
75 : ENSURE(table.size() == sizeof(WmiHeader) + wmiHeader->length);
76 : memmove(&table[0], &table[sizeof(WmiHeader)], table.size()-sizeof(WmiHeader));
77 :
78 : return INFO::OK;
79 : }
80 :
81 : #endif // OS_WIN
82 :
83 :
84 : //-----------------------------------------------------------------------------
85 : // strings
86 :
87 : // pointers to the strings (if any) at the end of an SMBIOS structure
88 : typedef std::vector<const char*> Strings;
89 :
90 0 : static Strings ExtractStrings(const Header* header, const char* end, const Header*& next)
91 : {
92 0 : Strings strings;
93 :
94 0 : const char* pos = ((const char*)header) + header->length;
95 0 : while(pos <= end-2)
96 : {
97 0 : if(*pos == '\0')
98 : {
99 0 : pos++;
100 0 : if(*pos == 0)
101 : {
102 0 : pos++;
103 0 : break;
104 : }
105 : }
106 :
107 0 : strings.push_back(pos);
108 0 : pos += strlen(pos);
109 : }
110 :
111 0 : next = (const Header*)pos;
112 0 : return strings;
113 : }
114 :
115 :
116 : // storage for all structures' strings (must be copied from the original
117 : // wfirmware table since its std::vector container cannot be stored in a
118 : // static variable because we may be called before _cinit)
119 : static char* stringStorage;
120 : static char* stringStoragePos;
121 :
122 : // pointers to dynamically allocated structures
123 : static Structures g_Structures;
124 :
125 0 : static void Cleanup() // called via atexit
126 : {
127 0 : SAFE_FREE(stringStorage);
128 0 : stringStoragePos = 0;
129 :
130 : // free each allocated structure
131 : #define STRUCTURE(name, id)\
132 : while(g_Structures.name##_)\
133 : {\
134 : name* next = g_Structures.name##_->next;\
135 : SAFE_FREE(g_Structures.name##_);\
136 : g_Structures.name##_ = next;\
137 : }
138 0 : STRUCTURES
139 : #undef STRUCTURE
140 0 : }
141 :
142 :
143 : //-----------------------------------------------------------------------------
144 : // FieldInitializer
145 :
146 : // define function templates that invoke a Visitor for each of a structure's fields
147 : #define FIELD(flags, type, name, units) visitor(flags, p.name, #name, units);
148 : #define STRUCTURE(name, id) template<class Visitor> void VisitFields(name& p, Visitor& visitor) { name##_FIELDS }
149 0 : STRUCTURES
150 : #undef STRUCTURE
151 : #undef FIELD
152 :
153 :
154 : // initialize each of a structure's fields by copying from the SMBIOS data
155 : class FieldInitializer
156 : {
157 : NONCOPYABLE(FieldInitializer); // reference member
158 : public:
159 : FieldInitializer(const Header* header, const Strings& strings)
160 : : data((const u8*)(header+1))
161 : , end((const u8*)header + header->length)
162 : , strings(strings)
163 : {
164 : }
165 :
166 : template<typename Field>
167 0 : void operator()(size_t flags, Field& field, const char* UNUSED(name), const char* UNUSED(units))
168 : {
169 0 : if((flags & F_DERIVED) || data >= end)
170 : {
171 0 : field = Field();
172 0 : return;
173 : }
174 :
175 0 : Read(field, 0); // SFINAE
176 : }
177 :
178 : private:
179 : template<typename T>
180 0 : T ReadValue()
181 : {
182 : T value;
183 0 : memcpy(&value, data, sizeof(value));
184 0 : data += sizeof(value);
185 0 : return value;
186 : }
187 :
188 : // construct from SMBIOS representations that don't match the
189 : // actual type (e.g. enum)
190 : template<typename Field>
191 : void Read(Field& field, typename Field::T*)
192 : {
193 : field = Field(ReadValue<typename Field::T>());
194 : }
195 :
196 : template<typename Field>
197 0 : void Read(Field& field, ...)
198 : {
199 0 : field = ReadValue<Field>();
200 0 : }
201 :
202 : const u8* data;
203 : const u8* end;
204 : const Strings& strings;
205 : };
206 :
207 :
208 : // C++03 14.7.3(2): "An explicit specialization shall be declared [..] in the
209 : // namespace of which the enclosing class [..] is a member.
210 :
211 : // (this specialization avoids a "forcing value to bool true or false" warning)
212 : template<>
213 0 : void FieldInitializer::operator()<bool>(size_t flags, bool& UNUSED(t), const char* UNUSED(name), const char* UNUSED(units))
214 : {
215 : // SMBIOS doesn't specify any individual booleans, so we're only called for
216 : // derived fields and don't need to do anything.
217 0 : ENSURE(flags & F_DERIVED);
218 0 : }
219 :
220 : template<>
221 0 : void FieldInitializer::operator()<const char*>(size_t flags, const char*& t, const char* UNUSED(name), const char* UNUSED(units))
222 : {
223 0 : t = 0; // (allow immediate `return' when the string is found to be invalid)
224 :
225 : u8 number;
226 0 : operator()(flags, number, 0, 0);
227 0 : if(number == 0) // no string given
228 0 : return;
229 :
230 0 : if(number > strings.size())
231 : {
232 0 : debug_printf("SMBIOS: invalid string number %d (count=%d)\n", number, (int)strings.size());
233 0 : return;
234 : }
235 :
236 : // copy to stringStorage
237 0 : strcpy(stringStoragePos, strings[number-1]);
238 0 : t = stringStoragePos;
239 0 : stringStoragePos += strlen(t)+1;
240 : }
241 :
242 :
243 : //-----------------------------------------------------------------------------
244 : // Fixup (e.g. compute derived fields)
245 :
246 : template<class Structure>
247 : void Fixup(Structure& UNUSED(structure))
248 : {
249 : // primary template: do nothing
250 : }
251 :
252 : template<>
253 0 : void Fixup<Bios>(Bios& p)
254 : {
255 0 : p.size = size_t(p.encodedSize+1) * 64*KiB;
256 0 : }
257 :
258 : template<>
259 0 : void Fixup<Processor>(Processor& p)
260 : {
261 0 : p.populated = (p.status & 0x40) != 0;
262 0 : p.status = (ProcessorStatus)bits(p.status, 0, 2);
263 :
264 0 : if(p.voltage & 0x80)
265 0 : p.voltage &= ~0x80;
266 : else
267 : {
268 : // (arbitrarily) report the lowest supported value
269 0 : if(IsBitSet(p.voltage, 0))
270 0 : p.voltage = 50;
271 0 : if(IsBitSet(p.voltage, 1))
272 0 : p.voltage = 33;
273 0 : if(IsBitSet(p.voltage, 2))
274 0 : p.voltage = 29;
275 : }
276 0 : }
277 :
278 : template<>
279 0 : void Fixup<Cache>(Cache& p)
280 : {
281 : struct DecodeSize
282 : {
283 0 : u64 operator()(u16 size) const
284 : {
285 0 : const size_t granularity = IsBitSet(size, 15)? 64*KiB : 1*KiB;
286 0 : return u64(bits(size, 0, 14)) * granularity;
287 : }
288 : };
289 0 : p.maxSize = DecodeSize()(p.maxSize16);
290 0 : p.installedSize = DecodeSize()(p.installedSize16);
291 0 : p.level = bits(p.configuration, 0, 2)+1;
292 0 : p.location = (CacheLocation)bits(p.configuration, 5, 6);
293 0 : p.mode = (CacheMode)bits(p.configuration, 8, 9);
294 0 : p.configuration = (CacheConfigurationFlags)(p.configuration & ~0x367);
295 0 : }
296 :
297 : template<>
298 0 : void Fixup<SystemSlot>(SystemSlot& p)
299 : {
300 : // (only initialize function and device numbers if functionAndDeviceNumber is valid)
301 0 : if(p.functionAndDeviceNumber != 0xFF)
302 : {
303 0 : p.functionNumber = bits(p.functionAndDeviceNumber, 0, 2);
304 0 : p.deviceNumber = bits(p.functionAndDeviceNumber, 3, 7);
305 : }
306 0 : }
307 :
308 : template<>
309 0 : void Fixup<OnBoardDevices>(OnBoardDevices& p)
310 : {
311 0 : p.enabled = (p.type.value & 0x80) != 0;
312 0 : p.type = (OnBoardDeviceType)(p.type & ~0x80);
313 0 : }
314 :
315 : template<>
316 0 : void Fixup<MemoryArray>(MemoryArray& p)
317 : {
318 0 : if(p.maxCapacity32 != (u32)INT32_MIN)
319 0 : p.maxCapacity = u64(p.maxCapacity32) * KiB;
320 0 : }
321 :
322 : template<>
323 0 : void Fixup<MemoryDevice>(MemoryDevice& p)
324 : {
325 0 : if(p.size16 != INT16_MAX)
326 0 : p.size = u64(bits(p.size16, 0, 14)) * (IsBitSet(p.size16, 15)? 1*KiB : 1*MiB);
327 : else
328 0 : p.size = u64(bits(p.size32, 0, 30)) * MiB;
329 0 : p.rank = bits(p.attributes, 0, 3);
330 0 : }
331 :
332 : template<>
333 0 : void Fixup<MemoryArrayMappedAddress>(MemoryArrayMappedAddress& p)
334 : {
335 0 : if(p.startAddress32 != UINT32_MAX)
336 0 : p.startAddress = u64(p.startAddress32) * KiB;
337 0 : if(p.endAddress32 != UINT32_MAX)
338 0 : p.endAddress = u64(p.endAddress32) * KiB;
339 0 : }
340 :
341 : template<>
342 0 : void Fixup<MemoryDeviceMappedAddress>(MemoryDeviceMappedAddress& p)
343 : {
344 0 : if(p.startAddress32 != UINT32_MAX)
345 0 : p.startAddress = u64(p.startAddress32) * KiB;
346 0 : if(p.endAddress32 != UINT32_MAX)
347 0 : p.endAddress = u64(p.endAddress32) * KiB;
348 0 : }
349 :
350 : template<>
351 0 : void Fixup<VoltageProbe>(VoltageProbe& p)
352 : {
353 0 : p.location = (VoltageProbeLocation)bits(p.locationAndStatus, 0, 4);
354 0 : p.status = (State)bits(p.locationAndStatus, 5, 7);
355 0 : }
356 :
357 : template<>
358 0 : void Fixup<CoolingDevice>(CoolingDevice& p)
359 : {
360 0 : p.type = (CoolingDeviceType)bits(p.typeAndStatus, 0, 4);
361 0 : p.status = (State)bits(p.typeAndStatus, 5, 7);
362 0 : }
363 :
364 : template<>
365 0 : void Fixup<TemperatureProbe>(TemperatureProbe& p)
366 : {
367 0 : p.location = (TemperatureProbeLocation)bits(p.locationAndStatus, 0, 4);
368 0 : p.status = (State)bits(p.locationAndStatus, 5, 7);
369 0 : }
370 :
371 : template<>
372 0 : void Fixup<SystemPowerSupply>(SystemPowerSupply& p)
373 : {
374 0 : p.type = (SystemPowerSupplyType)bits(p.characteristics, 10, 13);
375 0 : p.status = (State)bits(p.characteristics, 7, 9);
376 0 : p.inputSwitching = (SystemPowerSupplyInputSwitching)bits(p.characteristics, 3, 6);
377 0 : p.characteristics = bits(p.characteristics, 0, 2);
378 0 : }
379 :
380 : template<>
381 0 : void Fixup<OnboardDevices2>(OnboardDevices2& p)
382 : {
383 0 : p.enabled = IsBitSet(p.type, 7);
384 0 : p.type = (OnBoardDeviceType)bits(p.type, 0, 6);
385 0 : p.deviceNumber = bits(p.functionAndDeviceNumber, 3, 7);
386 0 : p.functionNumber = bits(p.functionAndDeviceNumber, 0, 2);
387 0 : }
388 :
389 :
390 : //-----------------------------------------------------------------------------
391 : // InitStructures
392 :
393 : template<class Structure>
394 : void AddStructure(const Header* header, const Strings& strings, Structure*& listHead)
395 : {
396 : Structure* const p = (Structure*)calloc(1, sizeof(Structure)); // freed in Cleanup
397 : p->header = *header;
398 :
399 : if(listHead)
400 : {
401 : // insert at end of list to preserve order of caches/slots
402 : Structure* last = listHead;
403 : while(last->next)
404 : last = last->next;
405 : last->next = p;
406 : }
407 : else
408 : listHead = p;
409 :
410 : FieldInitializer fieldInitializer(header, strings);
411 : VisitFields(*p, fieldInitializer);
412 :
413 : Fixup(*p);
414 : }
415 :
416 :
417 0 : static Status InitStructures()
418 : {
419 : #if OS_WIN
420 : wfirmware::Table table;
421 : RETURN_STATUS_IF_ERR(GetTable(table));
422 : #else
423 0 : std::vector<u8> table;
424 0 : return ERR::NOT_SUPPORTED;
425 : #endif
426 :
427 : // (instead of counting the total string size, just use the
428 : // SMBIOS size - typically 1-2 KB - as an upper bound.)
429 : stringStoragePos = stringStorage = (char*)calloc(table.size(), sizeof(char)); // freed in Cleanup
430 : if(!stringStorage)
431 : WARN_RETURN(ERR::NO_MEM);
432 :
433 : atexit(Cleanup);
434 :
435 : const Header* header = (const Header*)&table[0];
436 : const Header* const end = (const Header*)(&table[0] + table.size());
437 : for(;;)
438 : {
439 : if(header+1 > end)
440 : {
441 : debug_printf("SMBIOS: table not terminated\n");
442 : break;
443 : }
444 : if(header->id == 127) // end
445 : break;
446 : if(header->length < sizeof(Header))
447 : return ERR::_3; // NOWARN (happens on some unknown BIOS, see http://trac.wildfiregames.com/ticket/2985)
448 :
449 : const Header* next;
450 : const Strings strings = ExtractStrings(header, (const char*)end, next);
451 :
452 : switch(header->id)
453 : {
454 : #define STRUCTURE(name, id) case id: AddStructure(header, strings, g_Structures.name##_); break;
455 : STRUCTURES
456 : #undef STRUCTURE
457 :
458 : default:
459 : if(32 < header->id && header->id < 126) // only mention non-proprietary structures of which we are not aware
460 : debug_printf("SMBIOS: unknown structure type %d\n", header->id);
461 : break;
462 : }
463 :
464 : header = next;
465 : }
466 :
467 : return INFO::OK;
468 : }
469 :
470 :
471 : //-----------------------------------------------------------------------------
472 : // StringFromEnum
473 :
474 : template<class Enum>
475 : std::string StringFromEnum(Enum UNUSED(field))
476 : {
477 : return "(unknown enumeration)";
478 : }
479 :
480 : #define ENUM(enumerator, VALUE)\
481 : if(field.value == VALUE) /* single bit flag or matching enumerator */\
482 : return #enumerator;\
483 : if(!is_pow2(VALUE)) /* these aren't bit flags */\
484 : {\
485 : allowFlags = false;\
486 : string.clear();\
487 : }\
488 : if(allowFlags && (field.value & (VALUE)))\
489 : {\
490 : if(!string.empty())\
491 : string += "|";\
492 : string += #enumerator;\
493 : }
494 : #define ENUMERATION(name, type)\
495 : template<>\
496 : std::string StringFromEnum<name>(name field)\
497 : {\
498 : std::string string;\
499 : bool allowFlags = true;\
500 : name##_ENUMERATORS\
501 : /* (don't warn about the value 0, e.g. optional fields) */\
502 : if(string.empty() && field != 0)\
503 : {\
504 : std::stringstream ss;\
505 : ss << "(unknown " << #name << " " << field.value << ")";\
506 : return ss.str();\
507 : }\
508 : return string;\
509 : }
510 0 : ENUMERATIONS
511 : #undef ENUMERATION
512 : #undef ENUM
513 :
514 :
515 : //-----------------------------------------------------------------------------
516 : // FieldStringizer
517 :
518 : class FieldStringizer
519 : {
520 : NONCOPYABLE(FieldStringizer); // reference member
521 : public:
522 0 : FieldStringizer(std::stringstream& ss)
523 0 : : ss(ss)
524 : {
525 0 : }
526 :
527 : template<typename Field>
528 0 : void operator()(size_t flags, Field& field, const char* name, const char* units)
529 : {
530 0 : if(flags & F_INTERNAL)
531 0 : return;
532 :
533 0 : Write(flags, field, name, units, 0); // SFINAE
534 : }
535 :
536 : // special case for sizes [bytes]
537 : template<typename T>
538 0 : void operator()(size_t flags, Size<T>& size, const char* name, const char* units)
539 : {
540 0 : if(flags & F_INTERNAL)
541 0 : return;
542 :
543 0 : const u64 value = (u64)size.value;
544 0 : if(value == 0)
545 0 : return;
546 :
547 : u64 divisor;
548 0 : if(value > GiB)
549 : {
550 0 : divisor = GiB;
551 0 : units = " GiB";
552 : }
553 0 : else if(value > MiB)
554 : {
555 0 : divisor = MiB;
556 0 : units = " MiB";
557 : }
558 0 : else if(value > KiB)
559 : {
560 0 : divisor = KiB;
561 0 : units = " KiB";
562 : }
563 : else
564 : {
565 0 : divisor = 1;
566 0 : units = " bytes";
567 : }
568 :
569 0 : WriteName(name);
570 :
571 : // (avoid floating-point output unless division would truncate the value)
572 0 : if(value % divisor == 0)
573 0 : ss << (value/divisor);
574 : else
575 0 : ss << (double(value)/divisor);
576 :
577 0 : WriteUnits(units);
578 : }
579 :
580 : private:
581 0 : void WriteName(const char* name)
582 : {
583 0 : ss << " "; // indent
584 0 : ss << name << ": ";
585 0 : }
586 :
587 0 : void WriteUnits(const char* units)
588 : {
589 0 : ss << units;
590 0 : ss << "\n";
591 0 : }
592 :
593 : // enumerations and bit flags
594 : template<typename Field>
595 0 : void Write(size_t UNUSED(flags), Field& field, const char* name, const char* units, typename Field::Enum*)
596 : {
597 : // 0 usually means "not included in structure", but some packed
598 : // enumerations actually use that value. therefore, only skip this
599 : // field if it is zero AND no matching enumerator is found.
600 0 : const std::string string = StringFromEnum(field);
601 0 : if(string.empty())
602 0 : return;
603 :
604 0 : WriteName(name);
605 0 : ss << StringFromEnum(field);
606 0 : WriteUnits(units);
607 : }
608 :
609 : // all other field types
610 : template<typename Field>
611 0 : void Write(size_t flags, Field& field, const char* name, const char* units, ...)
612 : {
613 : // SMBIOS uses the smallest and sometimes also largest representable
614 : // signed/unsigned value to indicate `unknown' (except enumerators -
615 : // but those are handled in the other function overload), so skip them.
616 0 : if(field == std::numeric_limits<Field>::min() || field == std::numeric_limits<Field>::max())
617 0 : return;
618 :
619 0 : WriteName(name);
620 :
621 0 : if(flags & F_HEX)
622 0 : ss << std::hex << std::uppercase;
623 :
624 : if(sizeof(field) == 1) // avoid printing as a character
625 0 : ss << unsigned(field);
626 : else
627 0 : ss << field;
628 :
629 0 : if(flags & F_HEX)
630 0 : ss << std::dec; // (revert to decimal, e.g. for displaying sizes)
631 :
632 0 : WriteUnits(units);
633 : }
634 :
635 : std::stringstream& ss;
636 : };
637 :
638 : template<>
639 0 : void FieldStringizer::operator()<bool>(size_t flags, bool& value, const char* name, const char* units)
640 : {
641 0 : if(flags & F_INTERNAL)
642 0 : return;
643 :
644 0 : WriteName(name);
645 0 : ss << (value? "true" : "false");
646 0 : WriteUnits(units);
647 : }
648 :
649 : template<>
650 0 : void FieldStringizer::operator()<Handle>(size_t flags, Handle& handle, const char* name, const char* units)
651 : {
652 0 : if(flags & F_INTERNAL)
653 0 : return;
654 :
655 : // don't display useless handles
656 0 : if(handle.value == 0 || handle.value == 0xFFFE || handle.value == 0xFFFF)
657 0 : return;
658 :
659 0 : WriteName(name);
660 0 : ss << handle.value;
661 0 : WriteUnits(units);
662 : }
663 :
664 :
665 : template<>
666 0 : void FieldStringizer::operator()<const char*>(size_t flags, const char*& value, const char* name, const char* units)
667 : {
668 0 : if(flags & F_INTERNAL)
669 0 : return;
670 :
671 : // don't display useless strings
672 0 : if(value == 0)
673 0 : return;
674 0 : std::string string(value);
675 0 : const size_t lastChar = string.find_last_not_of(' ');
676 0 : if(lastChar == std::string::npos) // nothing but spaces
677 0 : return;
678 0 : string.resize(lastChar+1); // strip trailing spaces
679 0 : if(!strcasecmp(value, "To Be Filled By O.E.M."))
680 0 : return;
681 :
682 0 : WriteName(name);
683 0 : ss << "\"" << string << "\"";
684 0 : WriteUnits(units);
685 : }
686 :
687 :
688 : //-----------------------------------------------------------------------------
689 : // public interface
690 :
691 0 : const Structures* GetStructures()
692 : {
693 : static ModuleInitState initState;
694 0 : Status ret = ModuleInit(&initState, InitStructures);
695 : // (callers have to check if member pointers are nonzero anyway, so
696 : // we always return a valid pointer to simplify most use cases.)
697 : UNUSED2(ret);
698 0 : return &g_Structures;
699 : }
700 :
701 :
702 : template<class Structure>
703 0 : void StringizeStructure(const char* name, Structure* p, std::stringstream& ss)
704 : {
705 0 : for(; p; p = p->next)
706 : {
707 0 : ss << "\n[" << name << "]\n";
708 0 : FieldStringizer fieldStringizer(ss);
709 0 : VisitFields(*p, fieldStringizer);
710 : }
711 0 : }
712 :
713 0 : std::string StringizeStructures(const Structures* structures)
714 : {
715 0 : std::stringstream ss;
716 : #define STRUCTURE(name, id) StringizeStructure(#name, structures->name##_, ss);
717 0 : STRUCTURES
718 : #undef STRUCTURE
719 :
720 0 : return ss.str();
721 : }
722 :
723 3 : } // namespace SMBIOS
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