/* * Copyright (C) 2014, 2015 Leah Rowe <info@minifree.org> * Copyright (C) 2016 Swift Geek <swiftgeek@gmail.com> * * 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/>. */ /* Generate deblobbed descriptor and gbe 12KiB file from scratch * without relying on a factory.rom dump */ #include "ich9gen.h" int main(int argc, char *argv[]) { int i, j; struct GBEREGIONRECORD_8K gbeStruct8k = generatedGbeStruct8k(); struct DESCRIPTORREGIONRECORD descriptorStruct4M = generatedDescriptorStruct(ROMSIZE_4MB, WITHGBE); struct DESCRIPTORREGIONRECORD descriptorStruct8M = generatedDescriptorStruct(ROMSIZE_8MB, WITHGBE); struct DESCRIPTORREGIONRECORD descriptorStruct16M = generatedDescriptorStruct(ROMSIZE_16MB, WITHGBE); struct DESCRIPTORREGIONRECORD descriptorStructNoGbe4M = generatedDescriptorStruct(ROMSIZE_4MB, WITHOUTGBE); struct DESCRIPTORREGIONRECORD descriptorStructNoGbe8M = generatedDescriptorStruct(ROMSIZE_8MB, WITHOUTGBE); struct DESCRIPTORREGIONRECORD descriptorStructNoGbe16M = generatedDescriptorStruct(ROMSIZE_16MB, WITHOUTGBE); /* Only for the compatibility checks */ struct DESCRIPTORREGIONRECORD dummyDescriptorStruct; struct GBEREGIONRECORD_8K dummyGbeStruct8k; /* * ------------------------------------------------------------------ * Compatibility checks. This version of ich9deblob is not yet portable. * ------------------------------------------------------------------ */ if (systemOrCompilerIncompatible(dummyDescriptorStruct, dummyGbeStruct8k)) return 1; /* If true, fail with error message */ /* * ------------------------------------------------------------------ * Arguments given on the terminal * ------------------------------------------------------------------ */ if(argc==3) { /* If user provides their own MAC address, it will be used. * Otherwise, ich9gen will simply use the default one. * * However, if the user provides an invalid MAC address, then ich9gen * will exit. */ if(0==strcmp(argv[1],"--macaddress")) { /* 6 hex chars format (example): AA:BB:CC:DD:EE:FF */ if (strlen(argv[2]) != 17) { printf("ich9gen: invalid mac address format (wrong length)\n"); return 1; } for(i=2; i<14; i+=3) { if(argv[2][i]!=':') { printf("ich9gen: invalid mac address format (non-colon characters used as spacing)\n"); return 1; } } for(i=0; i<6; i++) { gbeStruct8k.main.macAddress[i] = 0; /* Go through each nibble of the byte */ for(j=0; j<2; j++) { if(argv[2][(i*3)+j]>='a' && argv[2][(i*3)+j]<='f') gbeStruct8k.main.macAddress[i] |= (uint8_t)((argv[2][(i*3)+j] - 87) << ((j^1) << 2)); else if(argv[2][(i*3)+j]>='A' && argv[2][(i*3)+j]<='F') gbeStruct8k.main.macAddress[i] |= (uint8_t)((argv[2][(i*3)+j] - 55) << ((j^1) << 2)); else if(argv[2][(i*3)+j]>='0' && argv[2][(i*3)+j]<='9') gbeStruct8k.main.macAddress[i] |= (uint8_t)((argv[2][(i*3)+j] - 48) << ((j^1) << 2)); else { printf("ich9gen: invalid mac address format (non-hex characters)\n"); return 1; } } } gbeStruct8k.main.checkSum = gbeGetChecksumFrom4kStruct(gbeStruct8k.main, GBECHECKSUMTOTAL); /* Fix the checksum */ memcpy(&gbeStruct8k.backup, &gbeStruct8k.main, GBEREGIONSIZE_4K); /* Copy to the backup */ /* Generate ich9gen data (C code for Gbe region): */ /* mkgbe.h */ if (notCreatedHFileForGbeCFile("mkgbe.h", "mkgbe.c")) { return 1; } /* and now mkgbe.c */ if (notCreatedCFileFromGbeStruct4k(gbeStruct8k.backup, "mkgbe.c", "mkgbe.h")) { return 1; } printf("You selected to change the MAC address in the Gbe section. This has been done.\n\n"); printf("The modified gbe region has also been dumped as src files: mkgbe.c, mkgbe.h\n"); printf("To use these in ich9gen, place them in src/ich9gen/ and re-build ich9gen.\n\n"); } } /* * ------------------------------------------------------------------ * Generate the 12KiB files, ready to be used in a libreboot image * ------------------------------------------------------------------ */ if (notCreatedDescriptorGbeFile(descriptorStruct4M, gbeStruct8k, "ich9fdgbe_4m.bin")) { return 1; } if (notCreatedDescriptorGbeFile(descriptorStruct8M, gbeStruct8k, "ich9fdgbe_8m.bin")) { return 1; } if (notCreatedDescriptorGbeFile(descriptorStruct16M, gbeStruct8k, "ich9fdgbe_16m.bin")) { return 1; } /* * ------------------------------------------------------------------ * Generate the 4KiB files (descriptors without GbE), ready to be used in a libreboot image * In these descriptors, the onboard Intel GbE NIC is disabled; a discrete one is used instead * ------------------------------------------------------------------ */ if (notCreated4kDescriptorFile(descriptorStructNoGbe4M, "ich9fdnogbe_4m.bin")) { return 1; } if (notCreated4kDescriptorFile(descriptorStructNoGbe8M, "ich9fdnogbe_8m.bin")) { return 1; } if (notCreated4kDescriptorFile(descriptorStructNoGbe16M, "ich9fdnogbe_16m.bin")) { return 1; } return 0; }