mirror of
https://git.sr.ht/~grimler/Heimdall
synced 2025-03-01 03:01:16 +00:00
f8001bce66
The unknown string is "COM_TAR2" in all devices I have access to. The CPU/bootloader string looks something like: * LSI7420 - Seen in Exynos 7420, 8890, 8895 devices (and probably others) * LSI5410 - Seen in Exynos 5420, 5433 devices (and probably others) * LSI7880 - Seen in a5y17lte (exynos 7880) and probably others * Mx - Seen in Galaxy S3 (device codename is m0/m3) * MSM8916 - Seen in MSM8916 devices * MSM8960 - Seen in jflte (and probably in others, jflte has a APQ8064AB CPU)
275 lines
7.7 KiB
C++
275 lines
7.7 KiB
C++
/* Copyright (c) 2010-2017 Benjamin Dobell, Glass Echidna
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.*/
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// libpit
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#include "libpit.h"
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using namespace libpit;
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PitEntry::PitEntry()
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{
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binaryType = false;
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deviceType = 0;
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identifier = 0;
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attributes = 0;
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updateAttributes = 0;
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blockSizeOrOffset = 0;
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blockCount = 0;
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fileOffset = 0;
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fileSize = 0;
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memset(partitionName, 0, PitEntry::kPartitionNameMaxLength);
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memset(flashFilename, 0, PitEntry::kFlashFilenameMaxLength);
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memset(fotaFilename, 0, PitEntry::kFotaFilenameMaxLength);
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}
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PitEntry::~PitEntry()
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{
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}
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bool PitEntry::Matches(const PitEntry *otherPitEntry) const
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{
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if (binaryType == otherPitEntry->binaryType && deviceType == otherPitEntry->deviceType && identifier == otherPitEntry->identifier
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&& attributes == otherPitEntry->attributes && updateAttributes == otherPitEntry->updateAttributes && blockSizeOrOffset == otherPitEntry->blockSizeOrOffset
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&& blockCount == otherPitEntry->blockCount && fileOffset == otherPitEntry->fileOffset && fileSize == otherPitEntry->fileSize
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&& strcmp(partitionName, otherPitEntry->partitionName) == 0 && strcmp(flashFilename, otherPitEntry->flashFilename) == 0
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&& strcmp(fotaFilename, otherPitEntry->fotaFilename) == 0)
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{
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return (true);
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}
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else
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{
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return (false);
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}
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}
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PitData::PitData()
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{
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entryCount = 0;
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com_tar2[0] = '\0';
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cpu_bl_id[0] = '\0';
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unknown = 0;
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}
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PitData::~PitData()
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{
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for (unsigned int i = 0; i < entries.size(); i++)
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delete entries[i];
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}
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bool PitData::Unpack(const unsigned char *data)
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{
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if (PitData::UnpackInteger(data, 0) != PitData::kFileIdentifier)
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return (false);
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// Remove existing entries
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for (unsigned int i = 0; i < entries.size(); i++)
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delete entries[i];
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entryCount = PitData::UnpackInteger(data, 4);
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entries.resize(entryCount);
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if (!memcpy(com_tar2, &data[8], 8))
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return (false);
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com_tar2[8]='\0';
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if (!memcpy(cpu_bl_id, &data[16], 8))
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return (false);
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cpu_bl_id[8]='\0';
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unknown = PitData::UnpackShort(data, 24);
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unsigned int integerValue;
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unsigned int entryOffset;
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for (unsigned int i = 0; i < entryCount; i++)
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{
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entryOffset = PitData::kHeaderDataSize + i * PitEntry::kDataSize;
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entries[i] = new PitEntry();
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integerValue = PitData::UnpackInteger(data, entryOffset);
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entries[i]->SetBinaryType(integerValue);
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integerValue = PitData::UnpackInteger(data, entryOffset + 4);
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entries[i]->SetDeviceType(integerValue);
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integerValue = PitData::UnpackInteger(data, entryOffset + 8);
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entries[i]->SetIdentifier(integerValue);
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integerValue = PitData::UnpackInteger(data, entryOffset + 12);
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entries[i]->SetAttributes(integerValue);
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integerValue = PitData::UnpackInteger(data, entryOffset + 16);
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entries[i]->SetUpdateAttributes(integerValue);
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integerValue = PitData::UnpackInteger(data, entryOffset + 20);
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entries[i]->SetBlockSizeOrOffset(integerValue);
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integerValue = PitData::UnpackInteger(data, entryOffset + 24);
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entries[i]->SetBlockCount(integerValue);
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integerValue = PitData::UnpackInteger(data, entryOffset + 28);
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entries[i]->SetFileOffset(integerValue);
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integerValue = PitData::UnpackInteger(data, entryOffset + 32);
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entries[i]->SetFileSize(integerValue);
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entries[i]->SetPartitionName((const char *)data + entryOffset + 36);
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entries[i]->SetFlashFilename((const char *)data + entryOffset + 36 + PitEntry::kPartitionNameMaxLength);
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entries[i]->SetFotaFilename((const char *)data + entryOffset + 36 + PitEntry::kPartitionNameMaxLength + PitEntry::kFlashFilenameMaxLength);
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}
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return (true);
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}
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void PitData::Pack(unsigned char *data) const
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{
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PitData::PackInteger(data, 0, PitData::kFileIdentifier);
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PitData::PackInteger(data, 4, entryCount);
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memcpy(&data[8], com_tar2, 8);
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memcpy(&data[16], cpu_bl_id, 8);
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PitData::PackShort(data, 24, unknown);
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int entryOffset;
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for (unsigned int i = 0; i < entryCount; i++)
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{
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entryOffset = PitData::kHeaderDataSize + i * PitEntry::kDataSize;
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PitData::PackInteger(data, entryOffset, entries[i]->GetBinaryType());
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PitData::PackInteger(data, entryOffset + 4, entries[i]->GetDeviceType());
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PitData::PackInteger(data, entryOffset + 8, entries[i]->GetIdentifier());
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PitData::PackInteger(data, entryOffset + 12, entries[i]->GetAttributes());
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PitData::PackInteger(data, entryOffset + 16, entries[i]->GetUpdateAttributes());
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PitData::PackInteger(data, entryOffset + 20, entries[i]->GetBlockSizeOrOffset());
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PitData::PackInteger(data, entryOffset + 24, entries[i]->GetBlockCount());
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PitData::PackInteger(data, entryOffset + 28, entries[i]->GetFileOffset());
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PitData::PackInteger(data, entryOffset + 32, entries[i]->GetFileSize());
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memcpy(data + entryOffset + 36, entries[i]->GetPartitionName(), PitEntry::kPartitionNameMaxLength);
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memcpy(data + entryOffset + 36 + PitEntry::kPartitionNameMaxLength, entries[i]->GetFlashFilename(), PitEntry::kFlashFilenameMaxLength);
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memcpy(data + entryOffset + 36 + PitEntry::kPartitionNameMaxLength + PitEntry::kFlashFilenameMaxLength,
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entries[i]->GetFotaFilename(), PitEntry::kFotaFilenameMaxLength);
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}
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}
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bool PitData::Matches(const PitData *otherPitData) const
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{
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if (entryCount == otherPitData->entryCount &&
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(strncmp(com_tar2, otherPitData->com_tar2, 8) == 0) &&
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(strncmp(cpu_bl_id, otherPitData->cpu_bl_id, 8) == 0) &&
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unknown == otherPitData->unknown)
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{
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for (unsigned int i = 0; i < entryCount; i++)
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{
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if (!entries[i]->Matches(otherPitData->entries[i]))
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return (false);
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}
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return (true);
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}
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else
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{
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return (false);
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}
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}
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void PitData::Clear(void)
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{
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entryCount = 0;
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com_tar2[0] = '\0';
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cpu_bl_id[0] = '\0';
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unknown = 0;
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for (unsigned int i = 0; i < entries.size(); i++)
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delete entries[i];
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entries.clear();
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}
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PitEntry *PitData::GetEntry(unsigned int index)
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{
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return (entries[index]);
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}
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const PitEntry *PitData::GetEntry(unsigned int index) const
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{
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return (entries[index]);
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}
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PitEntry *PitData::FindEntry(const char *partitionName)
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{
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for (unsigned int i = 0; i < entries.size(); i++)
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{
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if (entries[i]->IsFlashable() && strcmp(entries[i]->GetPartitionName(), partitionName) == 0)
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return (entries[i]);
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}
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return (nullptr);
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}
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const PitEntry *PitData::FindEntry(const char *partitionName) const
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{
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for (unsigned int i = 0; i < entries.size(); i++)
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{
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if (entries[i]->IsFlashable() && strcmp(entries[i]->GetPartitionName(), partitionName) == 0)
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return (entries[i]);
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}
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return (nullptr);
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}
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PitEntry *PitData::FindEntry(unsigned int partitionIdentifier)
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{
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for (unsigned int i = 0; i < entries.size(); i++)
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{
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if (entries[i]->IsFlashable() && entries[i]->GetIdentifier() == partitionIdentifier)
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return (entries[i]);
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}
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return (nullptr);
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}
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const PitEntry *PitData::FindEntry(unsigned int partitionIdentifier) const
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{
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for (unsigned int i = 0; i < entries.size(); i++)
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{
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if (entries[i]->IsFlashable() && entries[i]->GetIdentifier() == partitionIdentifier)
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return (entries[i]);
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}
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return (nullptr);
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}
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