[111] | 1 | /* |
---|
| 2 | * Copyright (C) 2008 Timothy D. Morgan |
---|
| 3 | * |
---|
| 4 | * This program is free software; you can redistribute it and/or modify |
---|
| 5 | * it under the terms of the GNU General Public License as published by |
---|
| 6 | * the Free Software Foundation; version 3 of the License. |
---|
| 7 | * |
---|
| 8 | * This program is distributed in the hope that it will be useful, |
---|
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
| 11 | * GNU General Public License for more details. |
---|
| 12 | * |
---|
| 13 | * You should have received a copy of the GNU General Public License |
---|
| 14 | * along with this program; if not, write to the Free Software |
---|
| 15 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
---|
| 16 | * |
---|
| 17 | * $Id: $ |
---|
| 18 | */ |
---|
| 19 | |
---|
| 20 | #include <stdio.h> |
---|
| 21 | #include <stdlib.h> |
---|
| 22 | #include <sysexits.h> |
---|
| 23 | |
---|
| 24 | #include "../include/regfi.h" |
---|
| 25 | #include "../include/range_list.h" |
---|
| 26 | #include "../include/lru_cache.h" |
---|
| 27 | |
---|
| 28 | |
---|
| 29 | /* Globals, influenced by command line parameters */ |
---|
| 30 | bool print_verbose = false; |
---|
| 31 | bool print_security = false; |
---|
| 32 | bool print_header = true; |
---|
| 33 | bool print_leftover = false; |
---|
| 34 | bool print_parsedraw = false; |
---|
| 35 | char* registry_file = NULL; |
---|
| 36 | |
---|
| 37 | |
---|
| 38 | #include "common.c" |
---|
| 39 | |
---|
| 40 | /* Output format: |
---|
| 41 | * real_offset,min_length,record_type,parent_path,name,data_type,mtime,num_values,value,data_length,raw_data |
---|
| 42 | */ |
---|
| 43 | |
---|
| 44 | void regfi_print_nk(REGF_NK_REC* nk) |
---|
| 45 | { |
---|
| 46 | printf("Found key at offset 0x%.8X:\n", nk->offset); |
---|
| 47 | printf(" keyname: \"%s\"\n", nk->keyname); |
---|
| 48 | printf(" parent_off (virtual): 0x%.8X\n", nk->parent_off); |
---|
| 49 | printf(" cell_size: %d\n", nk->cell_size); |
---|
| 50 | printf(" key_type: 0x%.4X\n", nk->key_type); |
---|
| 51 | printf(" magic: %c%c\n", nk->magic[0], nk->magic[1]); |
---|
| 52 | printf(" mtime: 0x%.8X 0x%.8X\n", nk->mtime.low, nk->mtime.high); |
---|
| 53 | printf(" name_length: %d\n", nk->name_length); |
---|
| 54 | printf(" classname_length: %d\n", nk->classname_length); |
---|
| 55 | printf(" classname_off (virtual): 0x%.8X\n", nk->classname_off); |
---|
| 56 | printf(" max_bytes_subkeyname: %d\n", nk->max_bytes_subkeyname); |
---|
| 57 | printf(" max_bytes_subkeyclassname: %d\n", nk->max_bytes_subkeyclassname); |
---|
| 58 | printf(" max_bytes_valuename: %d\n", nk->max_bytes_valuename); |
---|
| 59 | printf(" max_bytes_value: %d\n", nk->max_bytes_value); |
---|
| 60 | printf(" unknown1: 0x%.8X\n", nk->unknown1); |
---|
| 61 | printf(" unknown2: 0x%.8X\n", nk->unknown2); |
---|
| 62 | printf(" unknown3: 0x%.8X\n", nk->unknown3); |
---|
| 63 | printf(" unk_index: 0x%.8X\n", nk->unk_index); |
---|
| 64 | printf(" num_subkeys: %d\n", nk->num_subkeys); |
---|
| 65 | printf(" subkeys_off (virtual): 0x%.8X\n", nk->subkeys_off); |
---|
| 66 | printf(" num_values: %d\n", nk->num_values); |
---|
| 67 | printf(" values_off (virtual): 0x%.8X\n", nk->values_off); |
---|
| 68 | printf(" sk_off (virtual): 0x%.8X\n", nk->sk_off); |
---|
| 69 | printf("\n"); |
---|
| 70 | } |
---|
| 71 | |
---|
| 72 | |
---|
| 73 | char* getQuotedData(int fd, uint32 offset, uint32 length) |
---|
| 74 | { |
---|
| 75 | uint8* buf; |
---|
| 76 | char* quoted_buf; |
---|
| 77 | uint32 len; |
---|
| 78 | |
---|
| 79 | if((lseek(fd, offset, SEEK_SET)) == -1) |
---|
| 80 | return NULL; |
---|
| 81 | |
---|
| 82 | buf = (uint8*)malloc(length); |
---|
| 83 | if(buf == NULL) |
---|
| 84 | return NULL; |
---|
| 85 | |
---|
| 86 | len = length; |
---|
| 87 | if((regfi_read(fd, buf, &length) != 0) || length != len) |
---|
| 88 | { |
---|
| 89 | free(buf); |
---|
| 90 | return NULL; |
---|
| 91 | } |
---|
| 92 | |
---|
| 93 | quoted_buf = quote_buffer(buf, length, common_special_chars); |
---|
| 94 | free(buf); |
---|
| 95 | |
---|
| 96 | return quoted_buf; |
---|
| 97 | } |
---|
| 98 | |
---|
| 99 | |
---|
| 100 | void printKey(REGF_FILE* f, REGF_NK_REC* nk, const char* prefix) |
---|
| 101 | { |
---|
| 102 | char mtime[20]; |
---|
| 103 | time_t tmp_time[1]; |
---|
| 104 | struct tm* tmp_time_s = NULL; |
---|
| 105 | char* quoted_name = NULL; |
---|
| 106 | char* quoted_raw = ""; |
---|
| 107 | |
---|
| 108 | *tmp_time = nt_time_to_unix(&nk->mtime); |
---|
| 109 | tmp_time_s = gmtime(tmp_time); |
---|
| 110 | strftime(mtime, sizeof(mtime), "%Y-%m-%d %H:%M:%S", tmp_time_s); |
---|
| 111 | |
---|
| 112 | quoted_name = quote_string(nk->keyname, key_special_chars); |
---|
| 113 | if (quoted_name == NULL) |
---|
| 114 | { |
---|
| 115 | quoted_name = malloc(1*sizeof(char)); |
---|
| 116 | if(quoted_name == NULL) |
---|
| 117 | bailOut(EX_OSERR, "ERROR: Could not allocate sufficient memory.\n"); |
---|
| 118 | quoted_name[0] = '\0'; |
---|
| 119 | |
---|
| 120 | fprintf(stderr, "WARNING: NULL key name in NK record at offset %.8X.\n", |
---|
| 121 | nk->offset); |
---|
| 122 | } |
---|
| 123 | |
---|
| 124 | if(print_parsedraw) |
---|
| 125 | quoted_raw = getQuotedData(f->fd, nk->offset, nk->cell_size); |
---|
| 126 | |
---|
| 127 | printf("%.8X,%.8X,KEY,%s,%s,%s,%d,,,,,,,,%s\n", nk->offset, nk->cell_size, |
---|
| 128 | prefix, quoted_name, mtime, nk->num_values, quoted_raw); |
---|
| 129 | |
---|
| 130 | if(print_parsedraw) |
---|
| 131 | free(quoted_raw); |
---|
| 132 | } |
---|
| 133 | |
---|
| 134 | |
---|
| 135 | void printValue(REGF_FILE* f, const REGF_VK_REC* vk, const char* prefix) |
---|
| 136 | { |
---|
| 137 | char* quoted_value = NULL; |
---|
| 138 | char* quoted_name = NULL; |
---|
| 139 | char* quoted_raw = ""; |
---|
| 140 | char* conv_error = NULL; |
---|
| 141 | const char* str_type = NULL; |
---|
| 142 | uint32 size = vk->data_size; |
---|
| 143 | |
---|
| 144 | /* Microsoft's documentation indicates that "available memory" is |
---|
| 145 | * the limit on value sizes. Annoying. We limit it to 1M which |
---|
| 146 | * should rarely be exceeded, unless the file is corrupt or |
---|
| 147 | * malicious. For more info, see: |
---|
| 148 | * http://msdn2.microsoft.com/en-us/library/ms724872.aspx |
---|
| 149 | */ |
---|
| 150 | /* TODO: should probably do something different here for this tool.*/ |
---|
| 151 | if(size > VK_MAX_DATA_LENGTH) |
---|
| 152 | { |
---|
| 153 | fprintf(stderr, "WARNING: value data size %d larger than " |
---|
| 154 | "%d, truncating...\n", size, VK_MAX_DATA_LENGTH); |
---|
| 155 | size = VK_MAX_DATA_LENGTH; |
---|
| 156 | } |
---|
| 157 | |
---|
| 158 | quoted_name = quote_string(vk->valuename, key_special_chars); |
---|
| 159 | if (quoted_name == NULL) |
---|
| 160 | { /* Value names are NULL when we're looking at the "(default)" value. |
---|
| 161 | * Currently we just return a 0-length string to try an eliminate |
---|
| 162 | * ambiguity with a literal "(default)" value. The data type of a line |
---|
| 163 | * in the output allows one to differentiate between the parent key and |
---|
| 164 | * this value. |
---|
| 165 | */ |
---|
| 166 | quoted_name = malloc(1*sizeof(char)); |
---|
| 167 | if(quoted_name == NULL) |
---|
| 168 | bailOut(EX_OSERR, "ERROR: Could not allocate sufficient memory.\n"); |
---|
| 169 | quoted_name[0] = '\0'; |
---|
| 170 | } |
---|
| 171 | |
---|
| 172 | quoted_value = data_to_ascii(vk->data, size, vk->type, &conv_error); |
---|
| 173 | if(quoted_value == NULL) |
---|
| 174 | { |
---|
| 175 | quoted_value = malloc(1*sizeof(char)); |
---|
| 176 | if(quoted_value == NULL) |
---|
| 177 | bailOut(EX_OSERR, "ERROR: Could not allocate sufficient memory.\n"); |
---|
| 178 | quoted_value[0] = '\0'; |
---|
| 179 | |
---|
| 180 | if(conv_error == NULL) |
---|
| 181 | fprintf(stderr, "WARNING: Could not quote value for '%s/%s'. " |
---|
| 182 | "Memory allocation failure likely.\n", prefix, quoted_name); |
---|
| 183 | else if(print_verbose) |
---|
| 184 | fprintf(stderr, "WARNING: Could not quote value for '%s/%s'. " |
---|
| 185 | "Returned error: %s\n", prefix, quoted_name, conv_error); |
---|
| 186 | } |
---|
| 187 | /* XXX: should these always be printed? */ |
---|
| 188 | else if(conv_error != NULL && print_verbose) |
---|
| 189 | fprintf(stderr, "VERBOSE: While quoting value for '%s/%s', " |
---|
| 190 | "warning returned: %s\n", prefix, quoted_name, conv_error); |
---|
| 191 | |
---|
| 192 | |
---|
| 193 | if(print_parsedraw) |
---|
| 194 | quoted_raw = getQuotedData(f->fd, vk->offset, vk->cell_size); |
---|
| 195 | |
---|
| 196 | str_type = regfi_type_val2str(vk->type); |
---|
| 197 | if(str_type == NULL) |
---|
| 198 | printf("%.8X,%.8X,VALUE,%s,%s,,,0x%.8X,%s,%d,,,,,%s\n", |
---|
| 199 | vk->offset, vk->cell_size, prefix, quoted_name, |
---|
| 200 | vk->type, quoted_value, vk->data_size, quoted_raw); |
---|
| 201 | else |
---|
| 202 | printf("%.8X,%.8X,VALUE,%s,%s,,,%s,%s,%d,,,,,%s\n", |
---|
| 203 | vk->offset, vk->cell_size, prefix, quoted_name, |
---|
| 204 | str_type, quoted_value, vk->data_size, quoted_raw); |
---|
| 205 | |
---|
| 206 | if(print_parsedraw) |
---|
| 207 | free(quoted_raw); |
---|
| 208 | if(quoted_value != NULL) |
---|
| 209 | free(quoted_value); |
---|
| 210 | if(quoted_name != NULL) |
---|
| 211 | free(quoted_name); |
---|
| 212 | if(conv_error != NULL) |
---|
| 213 | free(conv_error); |
---|
| 214 | } |
---|
| 215 | |
---|
| 216 | |
---|
| 217 | void printSK(REGF_FILE* f, REGF_SK_REC* sk) |
---|
| 218 | { |
---|
| 219 | char* quoted_raw = NULL; |
---|
| 220 | char* empty_str = ""; |
---|
| 221 | char* owner = regfi_get_owner(sk->sec_desc); |
---|
| 222 | char* group = regfi_get_group(sk->sec_desc); |
---|
| 223 | char* sacl = regfi_get_sacl(sk->sec_desc); |
---|
| 224 | char* dacl = regfi_get_dacl(sk->sec_desc); |
---|
| 225 | |
---|
| 226 | if(print_parsedraw) |
---|
| 227 | quoted_raw = getQuotedData(f->fd, sk->offset, sk->cell_size); |
---|
| 228 | |
---|
| 229 | if(owner == NULL) |
---|
| 230 | owner = empty_str; |
---|
| 231 | if(group == NULL) |
---|
| 232 | group = empty_str; |
---|
| 233 | if(sacl == NULL) |
---|
| 234 | sacl = empty_str; |
---|
| 235 | if(dacl == NULL) |
---|
| 236 | dacl = empty_str; |
---|
| 237 | |
---|
| 238 | printf("%.8X,%.8X,SK,,,,,,,,%s,%s,%s,%s,%s\n", sk->offset, sk->cell_size, |
---|
| 239 | owner, group, sacl, dacl, quoted_raw); |
---|
| 240 | |
---|
| 241 | if(owner != empty_str) |
---|
| 242 | free(owner); |
---|
| 243 | if(group != empty_str) |
---|
| 244 | free(group); |
---|
| 245 | if(sacl != empty_str) |
---|
| 246 | free(sacl); |
---|
| 247 | if(dacl != empty_str) |
---|
| 248 | free(dacl); |
---|
| 249 | |
---|
| 250 | if(print_parsedraw) |
---|
| 251 | free(quoted_raw); |
---|
| 252 | } |
---|
| 253 | |
---|
| 254 | |
---|
| 255 | int printCell(REGF_FILE* f, uint32 offset) |
---|
| 256 | { |
---|
| 257 | char* quoted_buf; |
---|
| 258 | uint32 cell_length; |
---|
| 259 | bool unalloc; |
---|
| 260 | |
---|
| 261 | if(!regfi_parse_cell(f->fd, offset, NULL, 0, &cell_length, &unalloc)) |
---|
| 262 | return 1; |
---|
| 263 | |
---|
| 264 | quoted_buf = getQuotedData(f->fd, offset, cell_length); |
---|
| 265 | if(quoted_buf == NULL) |
---|
| 266 | return 2; |
---|
| 267 | |
---|
| 268 | printf("%.8X,%.8X,RAW,,,,,,,,,,,,%s\n", offset, cell_length, quoted_buf); |
---|
| 269 | |
---|
| 270 | free(quoted_buf); |
---|
| 271 | return 0; |
---|
| 272 | } |
---|
| 273 | |
---|
| 274 | |
---|
[112] | 275 | /* This function returns a properly quoted parent path or partial parent |
---|
| 276 | * path for a given key. Returns NULL on error, "" if no path was available. |
---|
| 277 | * Paths returned must be free()d. |
---|
| 278 | */ |
---|
| 279 | /* TODO: This is not terribly efficient, as it may reparse many keys |
---|
| 280 | * repeatedly. Should try to add caching. Also, piecing the path |
---|
| 281 | * together is slow and redundant. |
---|
| 282 | */ |
---|
| 283 | char* getParentPath(REGF_FILE* f, REGF_NK_REC* nk) |
---|
| 284 | { |
---|
| 285 | void_stack* path_stack = void_stack_new(REGF_MAX_DEPTH); |
---|
| 286 | REGF_HBIN* hbin; |
---|
| 287 | REGF_NK_REC* cur_ancestor; |
---|
| 288 | char* ret_val; |
---|
| 289 | char* path_element; |
---|
| 290 | char* tmp_str; |
---|
| 291 | uint32 virt_offset, i, stack_size, ret_val_size, ret_val_left, element_size; |
---|
| 292 | uint32 max_length; |
---|
| 293 | |
---|
| 294 | virt_offset = nk->parent_off; |
---|
| 295 | while(virt_offset != REGF_OFFSET_NONE) |
---|
| 296 | { |
---|
| 297 | /* TODO: Need to add checks for infinite loops and/or add depth limit */ |
---|
| 298 | hbin = regfi_lookup_hbin(f, virt_offset); |
---|
| 299 | if(hbin == NULL) |
---|
| 300 | virt_offset = REGF_OFFSET_NONE; |
---|
| 301 | else |
---|
| 302 | { |
---|
| 303 | max_length = hbin->block_size + hbin->file_off |
---|
| 304 | - (virt_offset+REGF_BLOCKSIZE); |
---|
| 305 | cur_ancestor = regfi_parse_nk(f, virt_offset+REGF_BLOCKSIZE, |
---|
| 306 | max_length, true); |
---|
| 307 | if(cur_ancestor == NULL) |
---|
| 308 | virt_offset = REGF_OFFSET_NONE; |
---|
| 309 | else |
---|
| 310 | { |
---|
| 311 | if(cur_ancestor->key_type == NK_TYPE_ROOTKEY) |
---|
| 312 | virt_offset = REGF_OFFSET_NONE; |
---|
| 313 | else |
---|
| 314 | virt_offset = cur_ancestor->parent_off; |
---|
| 315 | |
---|
| 316 | path_element = quote_string(cur_ancestor->keyname, key_special_chars); |
---|
| 317 | if(path_element == NULL || !void_stack_push(path_stack, path_element)) |
---|
| 318 | { |
---|
| 319 | free(cur_ancestor->keyname); |
---|
| 320 | free(cur_ancestor); |
---|
| 321 | void_stack_free_deep(path_stack); |
---|
| 322 | return NULL; |
---|
| 323 | } |
---|
| 324 | |
---|
| 325 | regfi_key_free(cur_ancestor); |
---|
| 326 | } |
---|
| 327 | } |
---|
| 328 | } |
---|
| 329 | |
---|
| 330 | stack_size = void_stack_size(path_stack); |
---|
| 331 | ret_val_size = 16*stack_size; |
---|
| 332 | if(ret_val_size == 0) |
---|
| 333 | ret_val_size = 1; |
---|
| 334 | ret_val_left = ret_val_size; |
---|
| 335 | ret_val = malloc(ret_val_size); |
---|
| 336 | if(ret_val == NULL) |
---|
| 337 | { |
---|
| 338 | void_stack_free_deep(path_stack); |
---|
| 339 | return NULL; |
---|
| 340 | } |
---|
| 341 | ret_val[0] = '\0'; |
---|
| 342 | |
---|
| 343 | for(i=0; i<stack_size; i++) |
---|
| 344 | { |
---|
| 345 | path_element = void_stack_pop(path_stack); |
---|
| 346 | element_size = strlen(path_element); |
---|
| 347 | if(ret_val_left < element_size+2) |
---|
| 348 | { |
---|
| 349 | ret_val_size += element_size+16; |
---|
| 350 | ret_val_left += element_size+16; |
---|
| 351 | tmp_str = (char*)realloc(ret_val, ret_val_size); |
---|
| 352 | if(tmp_str == NULL) |
---|
| 353 | { |
---|
| 354 | free(ret_val); |
---|
| 355 | void_stack_free_deep(path_stack); |
---|
| 356 | return NULL; |
---|
| 357 | } |
---|
| 358 | ret_val = tmp_str; |
---|
| 359 | } |
---|
| 360 | |
---|
| 361 | ret_val_left -= snprintf(ret_val+ret_val_size-ret_val_left,ret_val_left, "/%s", path_element); |
---|
| 362 | free(path_element); |
---|
| 363 | } |
---|
| 364 | void_stack_free(path_stack); |
---|
| 365 | |
---|
| 366 | return ret_val; |
---|
| 367 | } |
---|
| 368 | |
---|
| 369 | |
---|
[111] | 370 | /* |
---|
| 371 | void dump_cell(int fd, uint32 offset) |
---|
| 372 | { |
---|
| 373 | uint8* buf; |
---|
| 374 | uint32 length, j; |
---|
| 375 | int32 cell_length; |
---|
| 376 | |
---|
| 377 | if((lseek(fd, offset, SEEK_SET)) == -1) |
---|
| 378 | exit(8); |
---|
| 379 | |
---|
| 380 | length = 4; |
---|
| 381 | regfi_read(fd, (void*)&cell_length, &length); |
---|
| 382 | if(cell_length < 0) |
---|
| 383 | cell_length *= -1; |
---|
| 384 | |
---|
| 385 | buf = (uint8*)malloc(cell_length); |
---|
| 386 | if(buf == NULL) |
---|
| 387 | exit(9); |
---|
| 388 | if((lseek(fd, offset, SEEK_SET)) == -1) |
---|
| 389 | exit(8); |
---|
| 390 | |
---|
| 391 | length = cell_length; |
---|
| 392 | regfi_read(fd, buf, &length); |
---|
| 393 | for(j=0; j < length; j++) |
---|
| 394 | { |
---|
| 395 | printf("%.2X", buf[j]); |
---|
| 396 | if(j%4 == 3) |
---|
| 397 | printf(" "); |
---|
| 398 | } |
---|
| 399 | printf("\n"); |
---|
| 400 | free(buf); |
---|
| 401 | } |
---|
| 402 | */ |
---|
| 403 | |
---|
| 404 | static void usage(void) |
---|
| 405 | { |
---|
| 406 | fprintf(stderr, "Usage: reglookup-recover [options] <REGISTRY_FILE>\n"); |
---|
| 407 | fprintf(stderr, "Version: %s\n", REGLOOKUP_VERSION); |
---|
| 408 | fprintf(stderr, "Options:\n"); |
---|
| 409 | fprintf(stderr, "\t-v\t sets verbose mode.\n"); |
---|
| 410 | fprintf(stderr, "\t-h\t enables header row. (default)\n"); |
---|
| 411 | fprintf(stderr, "\t-H\t disables header row.\n"); |
---|
| 412 | fprintf(stderr, "\t-l\t enables leftover(raw) cell output.\n"); |
---|
| 413 | fprintf(stderr, "\t-L\t disables leftover(raw) cell output. (default)\n"); |
---|
| 414 | fprintf(stderr, "\t-r\t enables raw cell output for parsed cells.\n"); |
---|
| 415 | fprintf(stderr, "\t-R\t disables raw cell output for parsed cells. (default)\n"); |
---|
| 416 | fprintf(stderr, "\n"); |
---|
| 417 | } |
---|
| 418 | |
---|
| 419 | |
---|
[113] | 420 | bool removeRange(range_list* rl, uint32 offset, uint32 length) |
---|
[111] | 421 | { |
---|
[113] | 422 | int32 rm_idx; |
---|
| 423 | const range_list_element* cur_elem; |
---|
[115] | 424 | |
---|
[113] | 425 | rm_idx = range_list_find(rl, offset); |
---|
| 426 | if(rm_idx < 0) |
---|
| 427 | return false; |
---|
| 428 | |
---|
| 429 | cur_elem = range_list_get(rl, rm_idx); |
---|
[111] | 430 | if(cur_elem == NULL) |
---|
| 431 | { |
---|
| 432 | printf("removeRange: cur_elem == NULL. rm_idx=%d\n", rm_idx); |
---|
| 433 | return false; |
---|
| 434 | } |
---|
| 435 | |
---|
| 436 | if(offset > cur_elem->offset) |
---|
| 437 | { |
---|
| 438 | if(!range_list_split_element(rl, rm_idx, offset)) |
---|
| 439 | { |
---|
| 440 | printf("removeRange: first split failed\n"); |
---|
| 441 | return false; |
---|
| 442 | } |
---|
| 443 | rm_idx++; |
---|
| 444 | } |
---|
| 445 | |
---|
| 446 | if(offset+length < cur_elem->offset+cur_elem->length) |
---|
| 447 | { |
---|
| 448 | if(!range_list_split_element(rl, rm_idx, offset+length)) |
---|
| 449 | { |
---|
| 450 | printf("removeRange: second split failed\n"); |
---|
| 451 | return false; |
---|
| 452 | } |
---|
| 453 | } |
---|
| 454 | |
---|
| 455 | if(!range_list_remove(rl, rm_idx)) |
---|
| 456 | { |
---|
| 457 | printf("removeRange: remove failed\n"); |
---|
| 458 | return false; |
---|
| 459 | } |
---|
| 460 | |
---|
| 461 | return true; |
---|
| 462 | } |
---|
| 463 | |
---|
| 464 | |
---|
| 465 | int extractKeys(REGF_FILE* f, |
---|
| 466 | range_list* unalloc_cells, |
---|
| 467 | range_list* unalloc_keys) |
---|
| 468 | { |
---|
| 469 | const range_list_element* cur_elem; |
---|
| 470 | REGF_NK_REC* key; |
---|
| 471 | uint32 i, j; |
---|
| 472 | |
---|
| 473 | for(i=0; i < range_list_size(unalloc_cells); i++) |
---|
| 474 | { |
---|
| 475 | cur_elem = range_list_get(unalloc_cells, i); |
---|
[115] | 476 | for(j=0; cur_elem->length > REGFI_NK_MIN_LENGTH |
---|
| 477 | && j <= cur_elem->length-REGFI_NK_MIN_LENGTH; j+=8) |
---|
[111] | 478 | { |
---|
[115] | 479 | key = regfi_parse_nk(f, cur_elem->offset+j, |
---|
| 480 | cur_elem->length-j, false); |
---|
[111] | 481 | if(key != NULL) |
---|
| 482 | { |
---|
| 483 | if(!range_list_add(unalloc_keys, key->offset, |
---|
| 484 | key->cell_size, key)) |
---|
| 485 | { |
---|
| 486 | fprintf(stderr, "ERROR: Couldn't add key to unalloc_keys.\n"); |
---|
| 487 | return 20; |
---|
| 488 | } |
---|
| 489 | |
---|
[115] | 490 | if(removeRange(unalloc_cells, key->offset, key->cell_size)) |
---|
| 491 | { |
---|
| 492 | /* TODO: This ugly hack is needed because unalloc_cells is changing |
---|
| 493 | * underneath us when we find things. Need a better approach |
---|
| 494 | * so we can parse things single-pass. |
---|
| 495 | */ |
---|
| 496 | i=0; |
---|
| 497 | break; |
---|
| 498 | } |
---|
| 499 | else |
---|
[111] | 500 | return 30; |
---|
| 501 | } |
---|
| 502 | } |
---|
| 503 | } |
---|
| 504 | |
---|
| 505 | return 0; |
---|
| 506 | } |
---|
| 507 | |
---|
| 508 | |
---|
| 509 | int extractValueLists(REGF_FILE* f, |
---|
| 510 | range_list* unalloc_cells, |
---|
| 511 | range_list* unalloc_keys) |
---|
| 512 | { |
---|
| 513 | REGF_NK_REC* nk; |
---|
| 514 | REGF_HBIN* hbin; |
---|
| 515 | const range_list_element* cur_elem; |
---|
| 516 | uint32 i, j, num_keys, off, values_length, max_length; |
---|
| 517 | |
---|
| 518 | num_keys=range_list_size(unalloc_keys); |
---|
| 519 | for(i=0; i<num_keys; i++) |
---|
| 520 | { |
---|
| 521 | cur_elem = range_list_get(unalloc_keys, i); |
---|
| 522 | if(cur_elem == NULL) |
---|
| 523 | return 10; |
---|
| 524 | nk = cur_elem->data; |
---|
| 525 | |
---|
| 526 | if(nk->num_values && (nk->values_off!=REGF_OFFSET_NONE)) |
---|
| 527 | { |
---|
| 528 | hbin = regfi_lookup_hbin(f, nk->values_off); |
---|
| 529 | |
---|
| 530 | if(hbin != NULL) |
---|
| 531 | { |
---|
| 532 | off = nk->values_off + REGF_BLOCKSIZE; |
---|
| 533 | max_length = hbin->block_size + hbin->file_off - off; |
---|
| 534 | /* TODO: This is kind of a hack. We parse all value-lists, VK records, |
---|
| 535 | * and data records without regard for current allocation status. |
---|
| 536 | * On the off chance that such a record correctly parsed but is |
---|
| 537 | * actually a reallocated structure used by something else, we |
---|
| 538 | * simply prune it after the fact. Would be faster to check this |
---|
| 539 | * up front somehow. |
---|
| 540 | */ |
---|
| 541 | nk->values = regfi_load_valuelist(f, off, nk->num_values, max_length, |
---|
| 542 | false); |
---|
[115] | 543 | values_length = (nk->num_values+1)*sizeof(uint32); |
---|
| 544 | if(values_length != (values_length & 0xFFFFFFF8)) |
---|
| 545 | values_length = (values_length & 0xFFFFFFF8) + 8; |
---|
[111] | 546 | |
---|
| 547 | if(nk->values != NULL) |
---|
| 548 | { |
---|
[115] | 549 | if(!range_list_has_range(unalloc_cells, off, values_length)) |
---|
[111] | 550 | { /* We've parsed a values-list which isn't in the unallocated list, |
---|
| 551 | * so prune it. |
---|
| 552 | */ |
---|
| 553 | for(j=0; j<nk->num_values; j++) |
---|
| 554 | { |
---|
| 555 | if(nk->values[j] != NULL) |
---|
| 556 | { |
---|
| 557 | if(nk->values[j]->data != NULL) |
---|
| 558 | free(nk->values[j]->data); |
---|
| 559 | free(nk->values[j]); |
---|
| 560 | } |
---|
| 561 | } |
---|
[115] | 562 | free(nk->values); |
---|
| 563 | nk->values = NULL; |
---|
[111] | 564 | } |
---|
| 565 | else |
---|
| 566 | { /* Values-list was recovered. Remove from unalloc_cells and |
---|
| 567 | * inspect values. |
---|
| 568 | */ |
---|
[113] | 569 | if(!removeRange(unalloc_cells, off, values_length)) |
---|
[111] | 570 | return 20; |
---|
| 571 | |
---|
| 572 | for(j=0; j < nk->num_values; j++) |
---|
| 573 | { |
---|
| 574 | if(nk->values[j] != NULL) |
---|
| 575 | { |
---|
[113] | 576 | if(!range_list_has_range(unalloc_cells, nk->values[j]->offset, |
---|
| 577 | nk->values[j]->cell_size)) |
---|
[111] | 578 | { /* We've parsed a value which isn't in the unallocated list, |
---|
| 579 | * so prune it. |
---|
| 580 | */ |
---|
| 581 | if(nk->values[j]->data != NULL) |
---|
| 582 | free(nk->values[j]->data); |
---|
| 583 | free(nk->values[j]); |
---|
| 584 | nk->values[j] = NULL; |
---|
| 585 | } |
---|
| 586 | else |
---|
| 587 | { |
---|
| 588 | /* A VK record was recovered. Remove from unalloc_cells |
---|
| 589 | * and inspect data. |
---|
| 590 | */ |
---|
[113] | 591 | if(!removeRange(unalloc_cells, nk->values[j]->offset, |
---|
[111] | 592 | nk->values[j]->cell_size)) |
---|
| 593 | return 21; |
---|
| 594 | |
---|
| 595 | /* Don't bother pruning or removing from unalloc_cells if |
---|
[113] | 596 | * there is no data, or it is stored in the offset. |
---|
[111] | 597 | */ |
---|
| 598 | if(nk->values[j]->data != NULL && !nk->values[j]->data_in_offset) |
---|
| 599 | { |
---|
| 600 | off = nk->values[j]->data_off+REGF_BLOCKSIZE; |
---|
[113] | 601 | if(!range_list_has_range(unalloc_cells, off, |
---|
| 602 | nk->values[j]->data_size)) |
---|
[111] | 603 | { /* We've parsed a data cell which isn't in the unallocated |
---|
| 604 | * list, so prune it. |
---|
| 605 | */ |
---|
| 606 | free(nk->values[j]->data); |
---|
| 607 | nk->values[j]->data = NULL; |
---|
| 608 | } |
---|
| 609 | else |
---|
| 610 | { /*A data record was recovered. Remove from unalloc_cells.*/ |
---|
[113] | 611 | if(!removeRange(unalloc_cells, off, |
---|
[111] | 612 | nk->values[j]->data_size)) |
---|
| 613 | return 22; |
---|
| 614 | } |
---|
| 615 | } |
---|
| 616 | } |
---|
| 617 | } |
---|
| 618 | } |
---|
| 619 | } |
---|
| 620 | } |
---|
| 621 | } |
---|
| 622 | } |
---|
| 623 | } |
---|
| 624 | |
---|
| 625 | return 0; |
---|
| 626 | } |
---|
| 627 | |
---|
| 628 | |
---|
| 629 | |
---|
| 630 | int extractValues(REGF_FILE* f, |
---|
| 631 | range_list* unalloc_cells, |
---|
| 632 | range_list* unalloc_values) |
---|
| 633 | { |
---|
| 634 | const range_list_element* cur_elem; |
---|
| 635 | REGF_VK_REC* vk; |
---|
[115] | 636 | uint32 i, j, off; |
---|
[111] | 637 | |
---|
| 638 | for(i=0; i < range_list_size(unalloc_cells); i++) |
---|
| 639 | { |
---|
| 640 | cur_elem = range_list_get(unalloc_cells, i); |
---|
| 641 | for(j=0; j <= cur_elem->length; j+=8) |
---|
| 642 | { |
---|
| 643 | vk = regfi_parse_vk(f, cur_elem->offset+j, |
---|
| 644 | cur_elem->length-j, false); |
---|
| 645 | if(vk != NULL) |
---|
| 646 | { |
---|
| 647 | if(!range_list_add(unalloc_values, vk->offset, |
---|
| 648 | vk->cell_size, vk)) |
---|
| 649 | { |
---|
| 650 | fprintf(stderr, "ERROR: Couldn't add value to unalloc_values.\n"); |
---|
| 651 | return 20; |
---|
| 652 | } |
---|
| 653 | |
---|
[113] | 654 | if(!removeRange(unalloc_cells, vk->offset, vk->cell_size)) |
---|
[111] | 655 | return 30; |
---|
[115] | 656 | |
---|
| 657 | if(vk->data != NULL && !vk->data_in_offset) |
---|
| 658 | { |
---|
| 659 | off = vk->data_off+REGF_BLOCKSIZE; |
---|
| 660 | if(!range_list_has_range(unalloc_cells, off, |
---|
| 661 | vk->data_size)) |
---|
| 662 | { /* We've parsed a data cell which isn't in the unallocated |
---|
| 663 | * list, so prune it. |
---|
| 664 | */ |
---|
| 665 | free(vk->data); |
---|
| 666 | vk->data = NULL; |
---|
| 667 | } |
---|
| 668 | else |
---|
| 669 | { /*A data record was recovered. Remove from unalloc_cells.*/ |
---|
| 670 | if(!removeRange(unalloc_cells, off, vk->data_size)) |
---|
| 671 | return 40; |
---|
| 672 | } |
---|
| 673 | } |
---|
| 674 | |
---|
| 675 | /* TODO: This ugly hack is needed because unalloc_cells is changing |
---|
| 676 | * underneath us when we find things. Need a better approach |
---|
| 677 | * so we can parse things single-pass. |
---|
| 678 | */ |
---|
| 679 | i=0; |
---|
| 680 | break; |
---|
[111] | 681 | } |
---|
| 682 | } |
---|
| 683 | } |
---|
| 684 | |
---|
| 685 | return 0; |
---|
| 686 | } |
---|
| 687 | |
---|
| 688 | |
---|
| 689 | int extractSKs(REGF_FILE* f, |
---|
| 690 | range_list* unalloc_cells, |
---|
| 691 | range_list* unalloc_sks) |
---|
| 692 | { |
---|
| 693 | const range_list_element* cur_elem; |
---|
| 694 | REGF_SK_REC* sk; |
---|
| 695 | uint32 i, j; |
---|
| 696 | |
---|
| 697 | for(i=0; i < range_list_size(unalloc_cells); i++) |
---|
| 698 | { |
---|
| 699 | cur_elem = range_list_get(unalloc_cells, i); |
---|
| 700 | for(j=0; j <= cur_elem->length; j+=8) |
---|
| 701 | { |
---|
| 702 | sk = regfi_parse_sk(f, cur_elem->offset+j, |
---|
| 703 | cur_elem->length-j, false); |
---|
| 704 | if(sk != NULL) |
---|
| 705 | { |
---|
| 706 | if(!range_list_add(unalloc_sks, sk->offset, |
---|
| 707 | sk->cell_size, sk)) |
---|
| 708 | { |
---|
| 709 | fprintf(stderr, "ERROR: Couldn't add sk to unalloc_sks.\n"); |
---|
| 710 | return 20; |
---|
| 711 | } |
---|
| 712 | |
---|
[115] | 713 | if(removeRange(unalloc_cells, sk->offset, sk->cell_size)) |
---|
| 714 | { |
---|
| 715 | /* TODO: This ugly hack is needed because unalloc_cells is changing |
---|
| 716 | * underneath us when we find things. Need a better approach |
---|
| 717 | * so we can parse things single-pass. |
---|
| 718 | */ |
---|
| 719 | i = 0; |
---|
| 720 | break; |
---|
| 721 | } |
---|
| 722 | else |
---|
[111] | 723 | return 30; |
---|
| 724 | } |
---|
| 725 | } |
---|
| 726 | } |
---|
| 727 | |
---|
| 728 | return 0; |
---|
| 729 | } |
---|
| 730 | |
---|
| 731 | |
---|
| 732 | int main(int argc, char** argv) |
---|
| 733 | { |
---|
| 734 | REGF_FILE* f; |
---|
| 735 | const range_list_element* cur_elem; |
---|
| 736 | range_list* unalloc_cells; |
---|
| 737 | range_list* unalloc_keys; |
---|
| 738 | range_list* unalloc_values; |
---|
| 739 | range_list* unalloc_sks; |
---|
[112] | 740 | char** parent_paths; |
---|
| 741 | char* tmp_name; |
---|
| 742 | char* tmp_path; |
---|
[111] | 743 | REGF_NK_REC* tmp_key; |
---|
| 744 | REGF_VK_REC* tmp_value; |
---|
[115] | 745 | uint32 argi, arge, i, j, k, ret, num_unalloc_keys; |
---|
[111] | 746 | /* uint32 test_offset;*/ |
---|
| 747 | |
---|
| 748 | /* Process command line arguments */ |
---|
| 749 | if(argc < 2) |
---|
| 750 | { |
---|
| 751 | usage(); |
---|
| 752 | bailOut(EX_USAGE, "ERROR: Requires at least one argument.\n"); |
---|
| 753 | } |
---|
| 754 | |
---|
| 755 | arge = argc-1; |
---|
| 756 | for(argi = 1; argi < arge; argi++) |
---|
| 757 | { |
---|
| 758 | if (strcmp("-v", argv[argi]) == 0) |
---|
| 759 | print_verbose = true; |
---|
| 760 | else if (strcmp("-h", argv[argi]) == 0) |
---|
| 761 | print_header = true; |
---|
| 762 | else if (strcmp("-H", argv[argi]) == 0) |
---|
| 763 | print_header = false; |
---|
| 764 | else if (strcmp("-l", argv[argi]) == 0) |
---|
| 765 | print_leftover = true; |
---|
| 766 | else if (strcmp("-L", argv[argi]) == 0) |
---|
| 767 | print_leftover = false; |
---|
| 768 | else if (strcmp("-r", argv[argi]) == 0) |
---|
| 769 | print_parsedraw = true; |
---|
| 770 | else if (strcmp("-R", argv[argi]) == 0) |
---|
| 771 | print_parsedraw = false; |
---|
| 772 | else |
---|
| 773 | { |
---|
| 774 | usage(); |
---|
| 775 | fprintf(stderr, "ERROR: Unrecognized option: %s\n", argv[argi]); |
---|
| 776 | bailOut(EX_USAGE, ""); |
---|
| 777 | } |
---|
| 778 | } |
---|
| 779 | /*test_offset = strtol(argv[argi++], NULL, 16);*/ |
---|
| 780 | |
---|
| 781 | if((registry_file = strdup(argv[argi])) == NULL) |
---|
| 782 | bailOut(EX_OSERR, "ERROR: Memory allocation problem.\n"); |
---|
| 783 | |
---|
| 784 | f = regfi_open(registry_file); |
---|
| 785 | if(f == NULL) |
---|
| 786 | { |
---|
| 787 | fprintf(stderr, "ERROR: Couldn't open registry file: %s\n", registry_file); |
---|
| 788 | bailOut(EX_NOINPUT, ""); |
---|
| 789 | } |
---|
| 790 | |
---|
| 791 | if(print_header) |
---|
| 792 | printf("OFFSET,REC_LENGTH,REC_TYPE,PATH,NAME," |
---|
| 793 | "NK_MTIME,NK_NVAL,VK_TYPE,VK_VALUE,VK_DATA_LEN," |
---|
| 794 | "SK_OWNER,SK_GROUP,SK_SACL,SK_DACL,RAW_CELL\n"); |
---|
| 795 | |
---|
| 796 | unalloc_cells = regfi_parse_unalloc_cells(f); |
---|
| 797 | if(unalloc_cells == NULL) |
---|
| 798 | { |
---|
| 799 | fprintf(stderr, "ERROR: Could not obtain list of unallocated cells.\n"); |
---|
| 800 | return 1; |
---|
| 801 | } |
---|
| 802 | |
---|
[115] | 803 | /*XXX |
---|
| 804 | for(i=0,k=0; i < range_list_size(unalloc_cells); i++) |
---|
| 805 | { |
---|
| 806 | cur_elem = range_list_get(unalloc_cells, i); |
---|
| 807 | k+=cur_elem->length; |
---|
| 808 | } |
---|
| 809 | printf("UNALLOC=%d\n", k); |
---|
| 810 | printf("UNALLOC_CELL_COUNT=%d\n", range_list_size(unalloc_cells)); |
---|
| 811 | XXX*/ |
---|
| 812 | |
---|
[111] | 813 | unalloc_keys = range_list_new(); |
---|
| 814 | if(unalloc_keys == NULL) |
---|
| 815 | return 10; |
---|
| 816 | |
---|
| 817 | unalloc_values = range_list_new(); |
---|
| 818 | if(unalloc_values == NULL) |
---|
| 819 | return 10; |
---|
| 820 | |
---|
| 821 | unalloc_sks = range_list_new(); |
---|
| 822 | if(unalloc_sks == NULL) |
---|
| 823 | return 10; |
---|
| 824 | |
---|
| 825 | ret = extractKeys(f, unalloc_cells, unalloc_keys); |
---|
| 826 | if(ret != 0) |
---|
| 827 | { |
---|
| 828 | fprintf(stderr, "ERROR: extractKeys() failed with %d.\n", ret); |
---|
| 829 | return ret; |
---|
| 830 | } |
---|
| 831 | |
---|
| 832 | ret = extractValueLists(f, unalloc_cells, unalloc_keys); |
---|
| 833 | if(ret != 0) |
---|
| 834 | { |
---|
| 835 | fprintf(stderr, "ERROR: extractValueLists() failed with %d.\n", ret); |
---|
| 836 | return ret; |
---|
| 837 | } |
---|
| 838 | |
---|
| 839 | /* Carve any orphan values and associated data */ |
---|
| 840 | ret = extractValues(f, unalloc_cells, unalloc_values); |
---|
| 841 | if(ret != 0) |
---|
| 842 | { |
---|
| 843 | fprintf(stderr, "ERROR: extractValues() failed with %d.\n", ret); |
---|
| 844 | return ret; |
---|
| 845 | } |
---|
| 846 | |
---|
| 847 | /* Carve any SK records */ |
---|
| 848 | ret = extractSKs(f, unalloc_cells, unalloc_sks); |
---|
| 849 | if(ret != 0) |
---|
| 850 | { |
---|
| 851 | fprintf(stderr, "ERROR: extractSKs() failed with %d.\n", ret); |
---|
| 852 | return ret; |
---|
| 853 | } |
---|
| 854 | |
---|
[112] | 855 | /* Now that we're done carving, associate recovered keys with parents, |
---|
| 856 | * if at all possible. |
---|
| 857 | */ |
---|
| 858 | num_unalloc_keys = range_list_size(unalloc_keys); |
---|
| 859 | parent_paths = (char**)malloc(sizeof(char*)*num_unalloc_keys); |
---|
| 860 | if(parent_paths == NULL) |
---|
| 861 | return 10; |
---|
[111] | 862 | |
---|
[112] | 863 | for(i=0; i < num_unalloc_keys; i++) |
---|
[111] | 864 | { |
---|
| 865 | cur_elem = range_list_get(unalloc_keys, i); |
---|
| 866 | tmp_key = (REGF_NK_REC*)cur_elem->data; |
---|
| 867 | |
---|
[112] | 868 | if(tmp_key == NULL) |
---|
| 869 | return 20; |
---|
| 870 | |
---|
| 871 | parent_paths[i] = getParentPath(f, tmp_key); |
---|
| 872 | if(parent_paths[i] == NULL) |
---|
| 873 | return 20; |
---|
| 874 | } |
---|
| 875 | |
---|
| 876 | /* Now start the output */ |
---|
[111] | 877 | |
---|
[112] | 878 | for(i=0; i < num_unalloc_keys; i++) |
---|
| 879 | { |
---|
| 880 | cur_elem = range_list_get(unalloc_keys, i); |
---|
| 881 | tmp_key = (REGF_NK_REC*)cur_elem->data; |
---|
| 882 | |
---|
| 883 | printKey(f, tmp_key, parent_paths[i]); |
---|
[114] | 884 | if(tmp_key->num_values > 0 && tmp_key->values != NULL) |
---|
[111] | 885 | { |
---|
[112] | 886 | tmp_name = quote_string(tmp_key->keyname, key_special_chars); |
---|
| 887 | tmp_path = (char*)malloc(strlen(parent_paths[i])+strlen(tmp_name)+2); |
---|
| 888 | if(tmp_path == NULL) |
---|
| 889 | return 10; |
---|
| 890 | sprintf(tmp_path, "%s/%s", parent_paths[i], tmp_name); |
---|
| 891 | for(j=0; j < tmp_key->num_values; j++) |
---|
| 892 | { |
---|
| 893 | tmp_value = tmp_key->values[j]; |
---|
| 894 | if(tmp_value != NULL) |
---|
| 895 | printValue(f, tmp_value, tmp_path); |
---|
| 896 | } |
---|
| 897 | free(tmp_path); |
---|
| 898 | free(tmp_name); |
---|
| 899 | free(parent_paths[i]); |
---|
[111] | 900 | } |
---|
| 901 | } |
---|
[112] | 902 | free(parent_paths); |
---|
[111] | 903 | |
---|
| 904 | /* Print out orphaned values */ |
---|
| 905 | for(i=0; i < range_list_size(unalloc_values); i++) |
---|
| 906 | { |
---|
| 907 | cur_elem = range_list_get(unalloc_values, i); |
---|
| 908 | tmp_value = (REGF_VK_REC*)cur_elem->data; |
---|
| 909 | |
---|
| 910 | printValue(f, tmp_value, ""); |
---|
| 911 | } |
---|
| 912 | |
---|
[115] | 913 | /*XXX |
---|
| 914 | for(i=0,j=0; i < range_list_size(unalloc_cells); i++) |
---|
| 915 | { |
---|
| 916 | cur_elem = range_list_get(unalloc_cells, i); |
---|
| 917 | j+=cur_elem->length; |
---|
| 918 | } |
---|
| 919 | printf("PARSED_UNALLOC=%d\n", k-j); |
---|
| 920 | XXX*/ |
---|
| 921 | |
---|
[111] | 922 | if(print_leftover) |
---|
| 923 | { |
---|
| 924 | for(i=0; i < range_list_size(unalloc_cells); i++) |
---|
| 925 | { |
---|
| 926 | cur_elem = range_list_get(unalloc_cells, i); |
---|
| 927 | printCell(f, cur_elem->offset); |
---|
| 928 | } |
---|
| 929 | } |
---|
| 930 | |
---|
| 931 | /* |
---|
| 932 | printf("Analyzing test_offset...\n"); |
---|
| 933 | if((tmp_key = regfi_parse_nk(f, test_offset, 4096, false)) != NULL) |
---|
| 934 | regfi_print_nk(tmp_key); |
---|
| 935 | else |
---|
| 936 | dump_cell(f->fd, test_offset); |
---|
| 937 | */ |
---|
| 938 | |
---|
| 939 | return 0; |
---|
| 940 | } |
---|