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