assembly.c 28.9 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
/*
 * assembly parser
 *
 * Copyright 2008 James Hawkins
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <stdarg.h>
#include <stdio.h>

#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winver.h"
#include "wincrypt.h"
#include "dbghelp.h"
#include "ole2.h"
#include "fusion.h"
32
#include "corhdr.h"
33 34 35 36 37

#include "fusionpriv.h"
#include "wine/debug.h"
#include "wine/unicode.h"

38
#define TableFromToken(tk) (TypeFromToken(tk) >> 24)
39
#define TokenFromTable(idx) (idx << 24)
40

41 42
#define MAX_CLR_TABLES  64

43 44 45 46
#define MD_STRINGS_BIT 0x1
#define MD_GUIDS_BIT   0x2
#define MD_BLOBS_BIT   0x4

47 48
typedef struct tagCLRTABLE
{
49
    INT rows;
50 51 52 53 54
    DWORD offset;
} CLRTABLE;

struct tagASSEMBLY
{
55
    LPWSTR path;
56 57 58 59 60

    HANDLE hfile;
    HANDLE hmap;
    BYTE *data;

61
    IMAGE_NT_HEADERS *nthdr;
62 63 64 65 66 67 68 69 70
    IMAGE_COR20_HEADER *corhdr;

    METADATAHDR *metadatahdr;

    METADATATABLESHDR *tableshdr;
    DWORD numtables;
    DWORD *numrows;
    CLRTABLE tables[MAX_CLR_TABLES];

71 72 73 74
    DWORD stringsz;
    DWORD guidsz;
    DWORD blobsz;

75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139
    BYTE *strings;
    BYTE *blobs;
};

static DWORD rva_to_offset(IMAGE_NT_HEADERS *nthdrs, DWORD rva)
{
    DWORD offset = rva, limit;
    IMAGE_SECTION_HEADER *img;
    WORD i;

    img = IMAGE_FIRST_SECTION(nthdrs);

    if (rva < img->PointerToRawData)
        return rva;

    for (i = 0; i < nthdrs->FileHeader.NumberOfSections; i++)
    {
        if (img[i].SizeOfRawData)
            limit = img[i].SizeOfRawData;
        else
            limit = img[i].Misc.VirtualSize;

        if (rva >= img[i].VirtualAddress &&
            rva < (img[i].VirtualAddress + limit))
        {
            if (img[i].PointerToRawData != 0)
            {
                offset -= img[i].VirtualAddress;
                offset += img[i].PointerToRawData;
            }

            return offset;
        }
    }

    return 0;
}

static BYTE *GetData(BYTE *pData, ULONG *pLength)
{
    if ((*pData & 0x80) == 0x00)
    {
        *pLength = (*pData & 0x7f);
        return pData + 1;
    }

    if ((*pData & 0xC0) == 0x80)
    {
        *pLength = ((*pData & 0x3f) << 8 | *(pData + 1));
        return pData + 2;
    }

    if ((*pData & 0xE0) == 0xC0)
    {
        *pLength = ((*pData & 0x1f) << 24 | *(pData + 1) << 16 |
                    *(pData + 2) << 8 | *(pData + 3));
        return pData + 4;
    }

    *pLength = (ULONG)-1;
    return 0;
}

static VOID *assembly_data_offset(ASSEMBLY *assembly, ULONG offset)
{
140
    return &assembly->data[offset];
141 142
}

143 144 145 146 147 148
#define MAX_TABLES_WORD 0xFFFF
#define MAX_TABLES_1BIT_ENCODE 32767
#define MAX_TABLES_2BIT_ENCODE 16383
#define MAX_TABLES_3BIT_ENCODE 8191
#define MAX_TABLES_5BIT_ENCODE 2047

149
static inline ULONG get_table_size(const ASSEMBLY *assembly, DWORD index)
150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234
{
    DWORD size;
    INT tables;

    switch (TokenFromTable(index))
    {
        case mdtModule:
        {
            size = sizeof(MODULETABLE) + (assembly->stringsz - sizeof(WORD)) +
                   2 * (assembly->guidsz - sizeof(WORD));
            break;
        }
        case mdtTypeRef:
        {
            size = sizeof(TYPEREFTABLE) + 2 * (assembly->stringsz - sizeof(WORD));

            /* ResolutionScope:ResolutionScope */
            tables = max(assembly->tables[TableFromToken(mdtModule)].rows,
                         assembly->tables[TableFromToken(mdtModuleRef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtAssemblyRef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtTypeRef)].rows);
            size += (tables > MAX_TABLES_2BIT_ENCODE) ? sizeof(WORD) : 0;
            break;
        }
        case mdtTypeDef:
        {
            size = sizeof(TYPEDEFTABLE) + 2 * (assembly->stringsz - sizeof(WORD));

            /* Extends:TypeDefOrRef */
            tables = max(assembly->tables[TableFromToken(mdtTypeDef)].rows,
                         assembly->tables[TableFromToken(mdtTypeRef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtTypeSpec)].rows);
            size += (tables > MAX_TABLES_2BIT_ENCODE) ? sizeof(WORD) : 0;

            size += (assembly->tables[TableFromToken(mdtFieldDef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            size += (assembly->tables[TableFromToken(mdtMethodDef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
        case mdtFieldDef:
        {
            size = sizeof(FIELDTABLE) + (assembly->stringsz - sizeof(WORD)) +
                   (assembly->blobsz - sizeof(WORD));
            break;
        }
        case mdtMethodDef:
        {
            size = sizeof(METHODDEFTABLE) + (assembly->stringsz - sizeof(WORD)) +
                   (assembly->blobsz - sizeof(WORD));

            size += (assembly->tables[TableFromToken(mdtParamDef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
        case mdtParamDef:
        {
            size = sizeof(PARAMTABLE) + (assembly->stringsz - sizeof(WORD));
            break;
        }
        case mdtInterfaceImpl:
        {
            size = sizeof(INTERFACEIMPLTABLE);

            /* Interface:TypeDefOrRef */
            tables = max(assembly->tables[TableFromToken(mdtTypeDef)].rows,
                         assembly->tables[TableFromToken(mdtTypeRef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtTypeSpec)].rows);
            size += (tables > MAX_TABLES_2BIT_ENCODE) ? sizeof(WORD) : 0;
            break;
        }
        case mdtMemberRef:
        {
            size = sizeof(MEMBERREFTABLE) + (assembly->stringsz - sizeof(WORD)) +
                   (assembly->blobsz - sizeof(WORD));

            /* Class:MemberRefParent */
            tables = max(assembly->tables[TableFromToken(mdtTypeRef)].rows,
                         assembly->tables[TableFromToken(mdtModuleRef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtMethodDef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtTypeSpec)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtTypeDef)].rows);
            size += (tables > MAX_TABLES_3BIT_ENCODE) ? sizeof(WORD) : 0;
            break;
        }
235
        case 0x0B000000: /* FIXME */
236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275
        {
            size = sizeof(CONSTANTTABLE) + (assembly->blobsz - sizeof(WORD));

            /* Parent:HasConstant */
            tables = max(assembly->tables[TableFromToken(mdtParamDef)].rows,
                         assembly->tables[TableFromToken(mdtFieldDef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtProperty)].rows);
            size += (tables > MAX_TABLES_2BIT_ENCODE) ? sizeof(WORD) : 0;
            break;
        }
        case mdtCustomAttribute:
        {
            size = sizeof(CUSTOMATTRIBUTETABLE) + (assembly->blobsz - sizeof(WORD));

            /* Parent:HasCustomAttribute */
            tables = max(assembly->tables[TableFromToken(mdtMethodDef)].rows,
                         assembly->tables[TableFromToken(mdtFieldDef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtTypeRef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtTypeDef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtParamDef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtInterfaceImpl)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtMemberRef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtPermission)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtProperty)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtEvent)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtSignature)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtModuleRef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtTypeSpec)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtAssembly)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtFile)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtExportedType)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtManifestResource)].rows);
            size += (tables > MAX_TABLES_5BIT_ENCODE) ? sizeof(WORD) : 0;

            /* Type:CustomAttributeType */
            tables = max(assembly->tables[TableFromToken(mdtMethodDef)].rows,
                         assembly->tables[TableFromToken(mdtMemberRef)].rows);
            size += (tables > MAX_TABLES_3BIT_ENCODE) ? sizeof(WORD) : 0;
            break;
        }
276
        case 0x0D000000: /* FIXME */
277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296
        {
            size = sizeof(FIELDMARSHALTABLE) + (assembly->blobsz - sizeof(WORD));

            /* Parent:HasFieldMarshal */
            tables = max(assembly->tables[TableFromToken(mdtFieldDef)].rows,
                         assembly->tables[TableFromToken(mdtParamDef)].rows);
            size += (tables > MAX_TABLES_1BIT_ENCODE) ? sizeof(WORD) : 0;
            break;
        }
        case mdtPermission:
        {
            size = sizeof(DECLSECURITYTABLE) + (assembly->blobsz - sizeof(WORD));

            /* Parent:HasDeclSecurity */
            tables = max(assembly->tables[TableFromToken(mdtTypeDef)].rows,
                         assembly->tables[TableFromToken(mdtMethodDef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtAssembly)].rows);
            size += (tables > MAX_TABLES_2BIT_ENCODE) ? sizeof(WORD) : 0;
            break;
        }
297
        case 0x0F000000: /* FIXME */
298 299 300 301 302 303
        {
            size = sizeof(CLASSLAYOUTTABLE);
            size += (assembly->tables[TableFromToken(mdtTypeDef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
304
        case 0x10000000: /* FIXME */
305 306 307 308 309 310 311 312 313 314 315
        {
            size = sizeof(FIELDLAYOUTTABLE);
            size += (assembly->tables[TableFromToken(mdtFieldDef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
        case mdtSignature:
        {
            size = sizeof(STANDALONESIGTABLE) + (assembly->blobsz - sizeof(WORD));
            break;
        }
316
        case 0x12000000: /* FIXME */
317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335
        {
            size = sizeof(EVENTMAPTABLE);
            size += (assembly->tables[TableFromToken(mdtTypeDef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            size += (assembly->tables[TableFromToken(mdtEvent)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
        case mdtEvent:
        {
            size = sizeof(EVENTTABLE) + (assembly->stringsz - sizeof(WORD));

            /* EventType:TypeDefOrRef */
            tables = max(assembly->tables[TableFromToken(mdtTypeDef)].rows,
                         assembly->tables[TableFromToken(mdtTypeRef)].rows);
            tables = max(tables, assembly->tables[TableFromToken(mdtTypeSpec)].rows);
            size += (tables > MAX_TABLES_2BIT_ENCODE) ? sizeof(WORD) : 0;
            break;
        }
336
        case 0x15000000:/* FIXME */
337 338 339 340 341 342 343 344 345 346 347 348 349 350
        {
            size = sizeof(PROPERTYMAPTABLE);
            size += (assembly->tables[TableFromToken(mdtTypeDef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            size += (assembly->tables[TableFromToken(mdtProperty)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
        case mdtProperty:
        {
            size = sizeof(PROPERTYTABLE) + (assembly->stringsz - sizeof(WORD)) +
                   (assembly->blobsz - sizeof(WORD));
            break;
        }
351
        case 0x18000000: /* FIXME */
352 353 354 355 356 357 358 359 360 361 362 363
        {
            size = sizeof(METHODSEMANTICSTABLE);

            /* Association:HasSemantics */
            tables = max(assembly->tables[TableFromToken(mdtEvent)].rows,
                         assembly->tables[TableFromToken(mdtProperty)].rows);
            size += (tables > MAX_TABLES_1BIT_ENCODE) ? sizeof(WORD) : 0;

            size += (assembly->tables[TableFromToken(mdtMethodDef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
364
        case 0x19000000: /* FIXME */
365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386
        {
            size = sizeof(METHODIMPLTABLE);

            /* MethodBody:MethodDefOrRef, MethodDeclaration:MethodDefOrRef */
            tables = max(assembly->tables[TableFromToken(mdtMethodDef)].rows,
                         assembly->tables[TableFromToken(mdtMemberRef)].rows);
            size += (tables > MAX_TABLES_1BIT_ENCODE) ? 2 * sizeof(WORD) : 0;

            size += (assembly->tables[TableFromToken(mdtTypeDef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
        case mdtModuleRef:
        {
            size = sizeof(MODULEREFTABLE) + (assembly->stringsz - sizeof(WORD));
            break;
        }
        case mdtTypeSpec:
        {
            size = sizeof(TYPESPECTABLE) + (assembly->blobsz - sizeof(WORD));
            break;
        }
387
        case 0x1C000000: /* FIXME */
388 389 390 391 392 393 394 395 396 397 398 399
        {
            size = sizeof(IMPLMAPTABLE) + (assembly->stringsz - sizeof(WORD));

            /* MemberForwarded:MemberForwarded */
            tables = max(assembly->tables[TableFromToken(mdtFieldDef)].rows,
                         assembly->tables[TableFromToken(mdtMethodDef)].rows);
            size += (tables > MAX_TABLES_1BIT_ENCODE) ? sizeof(WORD) : 0;

            size += (assembly->tables[TableFromToken(mdtModuleRef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
400
        case 0x1D000000: /* FIXME */
401 402 403 404 405 406 407 408 409 410 411 412
        {
            size = sizeof(FIELDRVATABLE);
            size += (assembly->tables[TableFromToken(mdtFieldDef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
        case mdtAssembly:
        {
            size = sizeof(ASSEMBLYTABLE) + 2 * (assembly->stringsz - sizeof(WORD)) +
                   (assembly->blobsz - sizeof(WORD));
            break;
        }
413
        case 0x20000001: /* FIXME */
414 415 416 417
        {
            size = sizeof(ASSEMBLYPROCESSORTABLE);
            break;
        }
418
        case 0x22000000: /* FIXME */
419 420 421 422 423 424 425 426 427 428
        {
            size = sizeof(ASSEMBLYOSTABLE);
            break;
        }
        case mdtAssemblyRef:
        {
            size = sizeof(ASSEMBLYREFTABLE) + 2 * (assembly->stringsz - sizeof(WORD)) +
                   2 * (assembly->blobsz - sizeof(WORD));
            break;
        }
429
        case 0x24000000: /* FIXME */
430 431 432 433 434 435
        {
            size = sizeof(ASSEMBLYREFPROCESSORTABLE);
            size += (assembly->tables[TableFromToken(mdtAssemblyRef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
436
        case 0x25000000: /* FIXME */
437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468
        {
            size = sizeof(ASSEMBLYREFOSTABLE);
            size += (assembly->tables[TableFromToken(mdtAssemblyRef)].rows >
                     MAX_TABLES_WORD) ? sizeof(WORD) : 0;
            break;
        }
        case mdtFile:
        {
            size = sizeof(FILETABLE) + (assembly->stringsz - sizeof(WORD)) +
                   (assembly->blobsz - sizeof(WORD));
            break;
        }
        case mdtExportedType:
        {
            size = sizeof(EXPORTEDTYPETABLE) + 2 * (assembly->stringsz - sizeof(WORD));

            /* Implementation:Implementation */
            tables = max(assembly->tables[TableFromToken(mdtFile)].rows,
                         assembly->tables[TableFromToken(mdtMethodDef)].rows);
            size += (tables > MAX_TABLES_2BIT_ENCODE) ? sizeof(WORD) : 0;
            break;
        }
        case mdtManifestResource:
        {
            size = sizeof(MANIFESTRESTABLE) + (assembly->stringsz - sizeof(WORD));

            /* Implementation:Implementation */
            tables = max(assembly->tables[TableFromToken(mdtFile)].rows,
                         assembly->tables[TableFromToken(mdtAssemblyRef)].rows);
            size += (tables > MAX_TABLES_2BIT_ENCODE) ? sizeof(WORD) : 0;
            break;
        }
469
        case 0x29000000: /* FIXME */
470 471 472 473 474 475 476 477 478 479 480 481 482
        {
            size = sizeof(NESTEDCLASSTABLE);
            size += (assembly->tables[TableFromToken(mdtTypeDef)].rows >
                     MAX_TABLES_WORD) ? 2 * sizeof(WORD) : 0;
            break;
        }
        default:
            return 0;
    }

    return size;
}

483 484
static HRESULT parse_clr_tables(ASSEMBLY *assembly, ULONG offset)
{
485
    DWORD i, count;
486
    ULONG currofs;
487
    ULONGLONG mask;
488 489

    currofs = offset;
490
    assembly->tableshdr = assembly_data_offset(assembly, currofs);
491 492 493
    if (!assembly->tableshdr)
        return E_FAIL;

494 495 496 497 498 499 500
    assembly->stringsz = (assembly->tableshdr->HeapOffsetSizes & MD_STRINGS_BIT) ?
                         sizeof(DWORD) : sizeof(WORD);
    assembly->guidsz = (assembly->tableshdr->HeapOffsetSizes & MD_GUIDS_BIT) ?
                       sizeof(DWORD) : sizeof(WORD);
    assembly->blobsz = (assembly->tableshdr->HeapOffsetSizes & MD_BLOBS_BIT) ?
                       sizeof(DWORD) : sizeof(WORD);

501
    currofs += sizeof(METADATATABLESHDR);
502
    assembly->numrows = assembly_data_offset(assembly, currofs);
503 504 505 506 507
    if (!assembly->numrows)
        return E_FAIL;

    memset(assembly->tables, -1, MAX_CLR_TABLES * sizeof(CLRTABLE));

508
    for (i = count = 0, mask = 1; i < MAX_CLR_TABLES; i++, mask <<= 1)
509
    {
510 511
        if (assembly->tableshdr->MaskValid.QuadPart & mask)
            assembly->tables[i].rows = assembly->numrows[count++];
512
    }
513 514
    assembly->numtables = count;
    currofs += assembly->numtables * sizeof(DWORD);
515

516
    for (i = 0, mask = 1; i < MAX_CLR_TABLES; i++, mask <<= 1)
517
    {
518
        if (assembly->tableshdr->MaskValid.QuadPart & mask)
519 520
        {
            assembly->tables[i].offset = currofs;
521
            currofs += get_table_size(assembly, i) * assembly->tables[i].rows;
522 523 524 525 526 527
        }
    }

    return S_OK;
}

528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548
static HRESULT parse_metadata_header(ASSEMBLY *assembly, DWORD *hdrsz)
{
    METADATAHDR *metadatahdr;
    BYTE *ptr, *dest;
    DWORD size, ofs;
    ULONG rva;

    rva = assembly->corhdr->MetaData.VirtualAddress;
    ptr = ImageRvaToVa(assembly->nthdr, assembly->data, rva, NULL);
    if (!ptr)
        return E_FAIL;

    metadatahdr = (METADATAHDR *)ptr;

    assembly->metadatahdr = HeapAlloc(GetProcessHeap(), 0, sizeof(METADATAHDR));
    if (!assembly->metadatahdr)
        return E_OUTOFMEMORY;

    size = FIELD_OFFSET(METADATAHDR, Version);
    memcpy(assembly->metadatahdr, metadatahdr, size);

549
    assembly->metadatahdr->Version = (LPSTR)&metadatahdr->Version;
550 551 552 553 554 555 556 557 558 559 560

    ofs = FIELD_OFFSET(METADATAHDR, Flags);
    ptr += FIELD_OFFSET(METADATAHDR, Version) + metadatahdr->VersionLength + 1;
    dest = (BYTE *)assembly->metadatahdr + ofs;
    memcpy(dest, ptr, sizeof(METADATAHDR) - ofs);

    *hdrsz = sizeof(METADATAHDR) - sizeof(LPSTR) + metadatahdr->VersionLength + 1;

    return S_OK;
}

561 562 563 564 565 566
static HRESULT parse_clr_metadata(ASSEMBLY *assembly)
{
    METADATASTREAMHDR *streamhdr;
    ULONG rva, i, ofs;
    LPSTR stream;
    HRESULT hr;
567
    DWORD hdrsz;
568 569
    BYTE *ptr;

570 571 572
    hr = parse_metadata_header(assembly, &hdrsz);
    if (FAILED(hr))
        return hr;
573

574 575
    rva = assembly->corhdr->MetaData.VirtualAddress;
    ptr = ImageRvaToVa(assembly->nthdr, assembly->data, rva + hdrsz, NULL);
576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592
    if (!ptr)
        return E_FAIL;

    for (i = 0; i < assembly->metadatahdr->Streams; i++)
    {
        streamhdr = (METADATASTREAMHDR *)ptr;
        ofs = rva_to_offset(assembly->nthdr, rva + streamhdr->Offset);

        ptr += sizeof(METADATASTREAMHDR);
        stream = (LPSTR)ptr;

        if (!lstrcmpA(stream, "#~"))
        {
            hr = parse_clr_tables(assembly, ofs);
            if (FAILED(hr))
                return hr;
        }
593
        else if (!lstrcmpA(stream, "#Strings") || !lstrcmpA(stream, "Strings"))
594
            assembly->strings = assembly_data_offset(assembly, ofs);
595
        else if (!lstrcmpA(stream, "#Blob") || !lstrcmpA(stream, "Blob"))
596
            assembly->blobs = assembly_data_offset(assembly, ofs);
597

598
        ptr += ((lstrlenA(stream) + 1) + 3) & ~3; /* align on DWORD boundary */
599 600 601 602 603 604 605 606 607 608 609 610 611
    }

    return S_OK;
}

static HRESULT parse_pe_header(ASSEMBLY *assembly)
{
    IMAGE_DATA_DIRECTORY *datadirs;

    assembly->nthdr = ImageNtHeader(assembly->data);
    if (!assembly->nthdr)
        return E_FAIL;

612
    if (assembly->nthdr->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
613 614 615 616 617 618
    {
        IMAGE_OPTIONAL_HEADER64 *opthdr =
                (IMAGE_OPTIONAL_HEADER64 *)&assembly->nthdr->OptionalHeader;
        datadirs = opthdr->DataDirectory;
    }
    else
619 620 621 622 623
    {
        IMAGE_OPTIONAL_HEADER32 *opthdr =
                (IMAGE_OPTIONAL_HEADER32 *)&assembly->nthdr->OptionalHeader;
        datadirs = opthdr->DataDirectory;
    }
624

625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648
    if (!datadirs)
        return E_FAIL;

    if (!datadirs[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress ||
        !datadirs[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].Size)
    {
        return E_FAIL;
    }

    assembly->corhdr = ImageRvaToVa(assembly->nthdr, assembly->data,
        datadirs[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress, NULL);
    if (!assembly->corhdr)
        return E_FAIL;

    return S_OK;
}

HRESULT assembly_create(ASSEMBLY **out, LPCWSTR file)
{
    ASSEMBLY *assembly;
    HRESULT hr;

    *out = NULL;

649
    assembly = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ASSEMBLY));
650 651 652
    if (!assembly)
        return E_OUTOFMEMORY;

653
    assembly->path = strdupW(file);
654
    if (!assembly->path)
655 656 657 658
    {
        hr = E_OUTOFMEMORY;
        goto failed;
    }
659 660 661

    assembly->hfile = CreateFileW(file, GENERIC_READ, FILE_SHARE_READ,
                                  NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
662 663 664 665 666
    if (assembly->hfile == INVALID_HANDLE_VALUE)
    {
        hr = HRESULT_FROM_WIN32(GetLastError());
        goto failed;
    }
667 668 669 670

    assembly->hmap = CreateFileMappingW(assembly->hfile, NULL, PAGE_READONLY,
                                        0, 0, NULL);
    if (!assembly->hmap)
671 672 673 674
    {
        hr = HRESULT_FROM_WIN32(GetLastError());
        goto failed;
    }
675 676 677

    assembly->data = MapViewOfFile(assembly->hmap, FILE_MAP_READ, 0, 0, 0);
    if (!assembly->data)
678 679 680 681
    {
        hr = HRESULT_FROM_WIN32(GetLastError());
        goto failed;
    }
682 683

    hr = parse_pe_header(assembly);
684
    if (FAILED(hr)) goto failed;
685 686

    hr = parse_clr_metadata(assembly);
687
    if (FAILED(hr)) goto failed;
688 689 690

    *out = assembly;
    return S_OK;
691 692

failed:
693
    assembly_release(assembly);
694
    return hr;
695 696 697 698 699 700 701
}

HRESULT assembly_release(ASSEMBLY *assembly)
{
    if (!assembly)
        return S_OK;

702
    HeapFree(GetProcessHeap(), 0, assembly->metadatahdr);
703 704 705 706 707 708 709 710 711
    HeapFree(GetProcessHeap(), 0, assembly->path);
    UnmapViewOfFile(assembly->data);
    CloseHandle(assembly->hmap);
    CloseHandle(assembly->hfile);
    HeapFree(GetProcessHeap(), 0, assembly);

    return S_OK;
}

712
static LPWSTR assembly_dup_str(const ASSEMBLY *assembly, DWORD index)
713
{
714 715
    int len;
    LPWSTR cpy;
716
    LPCSTR str = (LPCSTR)&assembly->strings[index];
717 718 719 720 721 722

    len = MultiByteToWideChar(CP_ACP, 0, str, -1, NULL, 0);

    if ((cpy = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR))))
       MultiByteToWideChar(CP_ACP, 0, str, -1, cpy, len);

723
    return cpy;
724 725
}

726
HRESULT assembly_get_name(ASSEMBLY *assembly, LPWSTR *name)
727
{
728
    BYTE *ptr;
729
    LONG offset;
730
    DWORD stridx;
731

732
    offset = assembly->tables[TableFromToken(mdtAssembly)].offset;
733
    if (offset == -1)
734 735
        return E_FAIL;

736 737
    ptr = assembly_data_offset(assembly, offset);
    if (!ptr)
738 739
        return E_FAIL;

740 741
    ptr += FIELD_OFFSET(ASSEMBLYTABLE, PublicKey) + assembly->blobsz;
    if (assembly->stringsz == sizeof(DWORD))
742
        stridx = *(DWORD *)ptr;
743
    else
744
        stridx = *(WORD *)ptr;
745 746

    *name = assembly_dup_str(assembly, stridx);
747 748 749 750 751 752
    if (!*name)
        return E_OUTOFMEMORY;

    return S_OK;
}

753
HRESULT assembly_get_path(const ASSEMBLY *assembly, LPWSTR *path)
754
{
755
    LPWSTR cpy = HeapAlloc(GetProcessHeap(), 0, (strlenW(assembly->path) + 1) * sizeof(WCHAR));
756 757
    *path = cpy;
    if (cpy)
758
        strcpyW(cpy, assembly->path);
759
    else
760 761 762 763 764
        return E_OUTOFMEMORY;

    return S_OK;
}

765
HRESULT assembly_get_version(ASSEMBLY *assembly, LPWSTR *version)
766
{
767 768
    static const WCHAR format[] = {'%','u','.','%','u','.','%','u','.','%','u',0};

769 770
    ASSEMBLYTABLE *asmtbl;
    LONG offset;
771

772
    *version = NULL;
773

774 775 776
    offset = assembly->tables[TableFromToken(mdtAssembly)].offset;
    if (offset == -1)
        return E_FAIL;
777

778 779 780
    asmtbl = assembly_data_offset(assembly, offset);
    if (!asmtbl)
        return E_FAIL;
781

782
    *version = HeapAlloc(GetProcessHeap(), 0, sizeof(format) + 4 * strlen("65535") * sizeof(WCHAR));
783
    if (!*version)
784
        return E_OUTOFMEMORY;
785

786 787
    sprintfW(*version, format, asmtbl->MajorVersion, asmtbl->MinorVersion,
             asmtbl->BuildNumber, asmtbl->RevisionNumber);
788

789
    return S_OK;
790 791
}

792
PEKIND assembly_get_architecture(ASSEMBLY *assembly)
793 794
{
    if ((assembly->corhdr->MajorRuntimeVersion == 2) && (assembly->corhdr->MinorRuntimeVersion == 0))
795
        return peNone; /* .NET 1.x assembly */
796 797 798 799 800 801 802 803 804 805

    if (assembly->nthdr->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
        return peAMD64; /* AMD64/IA64 assembly */

    if ((assembly->corhdr->Flags & COMIMAGE_FLAGS_ILONLY) && !(assembly->corhdr->Flags & COMIMAGE_FLAGS_32BITREQUIRED))
        return peMSIL; /* MSIL assembly */

    return peI386; /* x86 assembly */
}

806
static BYTE *assembly_get_blob(ASSEMBLY *assembly, DWORD index, ULONG *size)
807 808 809 810
{
    return GetData(&assembly->blobs[index], size);
}

811
HRESULT assembly_get_pubkey_token(ASSEMBLY *assembly, LPWSTR *token)
812
{
813 814
    ULONG i, size;
    LONG offset;
815
    BYTE *hashdata, *pubkey, *ptr;
816 817 818 819
    HCRYPTPROV crypt;
    HCRYPTHASH hash;
    BYTE tokbytes[BYTES_PER_TOKEN];
    HRESULT hr = E_FAIL;
820
    LPWSTR tok;
821
    DWORD idx;
822 823 824

    *token = NULL;

825
    offset = assembly->tables[TableFromToken(mdtAssembly)].offset;
826
    if (offset == -1)
827 828
        return E_FAIL;

829 830
    ptr = assembly_data_offset(assembly, offset);
    if (!ptr)
831 832
        return E_FAIL;

833 834 835 836 837 838 839
    ptr += FIELD_OFFSET(ASSEMBLYTABLE, PublicKey);
    if (assembly->blobsz == sizeof(DWORD))
        idx = *(DWORD *)ptr;
    else
        idx = *(WORD *)ptr;

    pubkey = assembly_get_blob(assembly, idx, &size);
840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867

    if (!CryptAcquireContextA(&crypt, NULL, NULL, PROV_RSA_FULL,
                              CRYPT_VERIFYCONTEXT))
        return E_FAIL;

    if (!CryptCreateHash(crypt, CALG_SHA1, 0, 0, &hash))
        return E_FAIL;

    if (!CryptHashData(hash, pubkey, size, 0))
        return E_FAIL;

    size = 0;
    if (!CryptGetHashParam(hash, HP_HASHVAL, NULL, &size, 0))
        return E_FAIL;

    hashdata = HeapAlloc(GetProcessHeap(), 0, size);
    if (!hashdata)
    {
        hr = E_OUTOFMEMORY;
        goto done;
    }

    if (!CryptGetHashParam(hash, HP_HASHVAL, hashdata, &size, 0))
        goto done;

    for (i = size - 1; i >= size - 8; i--)
        tokbytes[size - i - 1] = hashdata[i];

868
    tok = HeapAlloc(GetProcessHeap(), 0, (TOKEN_LENGTH + 1) * sizeof(WCHAR));
869 870 871 872 873 874
    if (!tok)
    {
        hr = E_OUTOFMEMORY;
        goto done;
    }

875
    token_to_str(tokbytes, tok);
876 877 878 879 880 881 882 883 884 885 886

    *token = tok;
    hr = S_OK;

done:
    HeapFree(GetProcessHeap(), 0, hashdata);
    CryptDestroyHash(hash);
    CryptReleaseContext(crypt, 0);

    return hr;
}
887 888 889 890 891 892

HRESULT assembly_get_runtime_version(ASSEMBLY *assembly, LPSTR *version)
{
    *version = assembly->metadatahdr->Version;
    return S_OK;
}
893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941

HRESULT assembly_get_external_files(ASSEMBLY *assembly, LPWSTR **files, DWORD *count)
{
    LONG offset;
    INT i, num_rows;
    WCHAR **ret;
    BYTE *ptr;
    DWORD idx;

    *count = 0;

    offset = assembly->tables[TableFromToken(mdtFile)].offset;
    if (offset == -1)
        return S_OK;

    ptr = assembly_data_offset(assembly, offset);
    if (!ptr)
        return S_OK;

    num_rows = assembly->tables[TableFromToken(mdtFile)].rows;
    if (num_rows <= 0)
        return S_OK;

    ret = HeapAlloc(GetProcessHeap(), 0, num_rows * sizeof(WCHAR *));
    if (!ret)
        return E_OUTOFMEMORY;

    for (i = 0; i < num_rows; i++)
    {
        ptr += sizeof(DWORD); /* skip Flags field */
        if (assembly->stringsz == sizeof(DWORD))
            idx = *(DWORD *)ptr;
        else
            idx = *(WORD *)ptr;

        ret[i] = assembly_dup_str(assembly, idx);
        if (!ret[i])
        {
            for (; i >= 0; i--) HeapFree(GetProcessHeap(), 0, ret[i]);
            HeapFree(GetProcessHeap(), 0, ret);
            return E_OUTOFMEMORY;
        }
        ptr += assembly->stringsz; /* skip Name field */
        ptr += assembly->blobsz; /* skip Hash field */
    }
    *count = num_rows;
    *files = ret;
    return S_OK;
}