diff options
Diffstat (limited to 'util/ich9utils/src/demefactory.c')
| -rw-r--r-- | util/ich9utils/src/demefactory.c | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/util/ich9utils/src/demefactory.c b/util/ich9utils/src/demefactory.c deleted file mode 100644 index 596118cf..00000000 --- a/util/ich9utils/src/demefactory.c +++ /dev/null @@ -1,141 +0,0 @@ -/* - * demefactory.c - * This file is part of the demefactory utility from the libreboot project - * - * Purpose: disable ME on GM45 factory firmware, but leave region intact - * enable read-write on all regions - * - * Copyright (C) 2014, 2015 Leah Rowe <info@minifree.org> - * Copyright (C) 2014 Steve Shenton <sgsit@libreboot.org> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -/* - * demfactory utility - main - */ - -#include "demefactory.h" - -int main() -{ - struct DESCRIPTORREGIONRECORD descriptorStruct; - uint8_t* descriptorBuffer = (uint8_t*)&descriptorStruct; - - struct GBEREGIONRECORD_8K gbeStruct8k; /* not needed, except for compatibility checking */ - - char* romFilename = "factory.rom"; - char* descriptorFilename = "demefactory_4kdescriptor.bin"; - - unsigned int bufferLength; - unsigned int romSize; - - /* - * ------------------------------------------------------------------ - * Compatibility checks. This version of ich9deblob is not yet portable. - * ------------------------------------------------------------------ - */ - - if (systemOrCompilerIncompatible(descriptorStruct, gbeStruct8k)) return 1; - /* If true, fail with error message */ - - /* - * ------------------------------------------------------------------ - * Extract the descriptor region from the factory.rom dump - * ------------------------------------------------------------------ - */ - FILE* fp = NULL; - fp = fopen(romFilename, "rb"); /* open factory.rom */ - if (NULL == fp) - { - printf("\nerror: could not open %s\n", romFilename); - fclose(fp); - return 1; - } - printf("\n%s opened successfully\n", romFilename); - - /* - * Get the descriptor region dump from the factory.rom - * (goes in factoryDescriptorBuffer variable) - */ - bufferLength = fread(descriptorBuffer, 1, DESCRIPTORREGIONSIZE, fp); - if (DESCRIPTORREGIONSIZE != bufferLength) // - { - printf("\nerror: could not read descriptor from %s (%i) bytes read\n", romFilename, bufferLength); - fclose(fp); - return 1; - } - printf("\ndescriptor region read successfully\n"); - - /* ------------------------------------------------- */ - - fseek(fp, 0L, SEEK_END); - romSize = ftell(fp); - printf("\n%s size: [%i] bytes\n", romFilename, romSize); - - /* -------------------------------------------------- */ - - fclose(fp); - - /* Debugging (before modification) */ - printDescriptorRegionLocations(descriptorStruct, "Original"); - - /* - * ------------------------------------------------------------------ - * Modify the descriptor region, ready to go in the modified factory.rom - * ------------------------------------------------------------------ - */ - - // Disable the ME/TPM: - descriptorStruct = descriptorDisableMe(descriptorStruct); - descriptorStruct = descriptorDisableTpm(descriptorStruct); - - /* Host/CPU is allowed to read/write all regions. */ - descriptorStruct = descriptorHostRegionsUnlocked(descriptorStruct); - /* The ME is disallowed read-write access to all regions - * (this is probably redundant, since the ME is already removed from libreboot) */ - descriptorStruct = descriptorMeRegionsForbidden(descriptorStruct); - - /* Debugging (after modifying the descriptor region) */ - printDescriptorRegionLocations(descriptorStruct, "Modified"); - - /* - * ------------------------------------------------------------------ - * Create the file with the modified descriptor inside - * ------------------------------------------------------------------ - */ - - printf("\n"); - if (notCreated4kDescriptorFile(descriptorStruct, descriptorFilename)) { - return 1; - } - - /* - * ------------------------------------------------------------------ - * Generate ich9gen data (C code that will recreate the deactivatedME descriptor from scratch) - * ------------------------------------------------------------------ - */ - /* Code for generating the Descriptor struct */ - /* mkdescriptor.h */ - if (notCreatedHFileForDescriptorCFile("mkdescriptor.h", "mkdescriptor.c")) { - return 1; - } /* and now mkdescriptor.c */ - if (notCreatedCFileFromDescriptorStruct(descriptorStruct, "mkdescriptor.c", "mkdescriptor.h")) { - return 1; - } - - printf("The modified descriptor region has also been dumped as src files: mkdescriptor.c, mkdescriptor.h\n\n"); - - return 0; -} |