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authorBenjamin Dobell <benjamin.dobell+git@glassechidna.com.au>2015-02-18 17:13:56 +0100
committerBenjamin Dobell <benjamin.dobell+git@glassechidna.com.au>2015-02-18 18:13:33 +0100
commitb22ae7b89f7993f632e10e18c116f293f314575f (patch)
tree03161ccff78d3c9353e860e5cd9b74b84d07810b /libpit/source/libpit.cpp
parentUpgrade Heimdall Frontend to Qt5 and build with cmake (diff)
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Diffstat (limited to 'libpit/source/libpit.cpp')
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diff --git a/libpit/source/libpit.cpp b/libpit/source/libpit.cpp
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+/* Copyright (c) 2010-2014 Benjamin Dobell, Glass Echidna
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.*/
+
+// libpit
+#include "libpit.h"
+
+using namespace libpit;
+
+PitEntry::PitEntry()
+{
+ binaryType = false;
+ deviceType = 0;
+ identifier = 0;
+ attributes = 0;
+ updateAttributes = 0;
+ blockSizeOrOffset = 0;
+ blockCount = 0;
+ fileOffset = 0;
+ fileSize = 0;
+
+ memset(partitionName, 0, PitEntry::kPartitionNameMaxLength);
+ memset(flashFilename, 0, PitEntry::kFlashFilenameMaxLength);
+ memset(fotaFilename, 0, PitEntry::kFotaFilenameMaxLength);
+}
+
+PitEntry::~PitEntry()
+{
+}
+
+bool PitEntry::Matches(const PitEntry *otherPitEntry) const
+{
+ if (binaryType == otherPitEntry->binaryType && deviceType == otherPitEntry->deviceType && identifier == otherPitEntry->identifier
+ && attributes == otherPitEntry->attributes && updateAttributes == otherPitEntry->updateAttributes && blockSizeOrOffset == otherPitEntry->blockSizeOrOffset
+ && blockCount == otherPitEntry->blockCount && fileOffset == otherPitEntry->fileOffset && fileSize == otherPitEntry->fileSize
+ && strcmp(partitionName, otherPitEntry->partitionName) == 0 && strcmp(flashFilename, otherPitEntry->flashFilename) == 0
+ && strcmp(fotaFilename, otherPitEntry->fotaFilename) == 0)
+ {
+ return (true);
+ }
+ else
+ {
+ return (false);
+ }
+}
+
+
+
+PitData::PitData()
+{
+ entryCount = 0;
+
+ unknown1 = 0;
+ unknown2 = 0;
+
+ unknown3 = 0;
+ unknown4 = 0;
+
+ unknown5 = 0;
+ unknown6 = 0;
+
+ unknown7 = 0;
+ unknown8 = 0;
+}
+
+PitData::~PitData()
+{
+ for (unsigned int i = 0; i < entries.size(); i++)
+ delete entries[i];
+}
+
+bool PitData::Unpack(const unsigned char *data)
+{
+ if (PitData::UnpackInteger(data, 0) != PitData::kFileIdentifier)
+ return (false);
+
+ // Remove existing entries
+ for (unsigned int i = 0; i < entries.size(); i++)
+ delete entries[i];
+
+ entryCount = PitData::UnpackInteger(data, 4);
+
+ entries.resize(entryCount);
+
+ unknown1 = PitData::UnpackInteger(data, 8);
+ unknown2 = PitData::UnpackInteger(data, 12);
+
+ unknown3 = PitData::UnpackShort(data, 16);
+ unknown4 = PitData::UnpackShort(data, 18);
+
+ unknown5 = PitData::UnpackShort(data, 20);
+ unknown6 = PitData::UnpackShort(data, 22);
+
+ unknown7 = PitData::UnpackShort(data, 24);
+ unknown8 = PitData::UnpackShort(data, 26);
+
+ unsigned int integerValue;
+ unsigned int entryOffset;
+
+ for (unsigned int i = 0; i < entryCount; i++)
+ {
+ entryOffset = PitData::kHeaderDataSize + i * PitEntry::kDataSize;
+
+ entries[i] = new PitEntry();
+
+ integerValue = PitData::UnpackInteger(data, entryOffset);
+ entries[i]->SetBinaryType(integerValue);
+
+ integerValue = PitData::UnpackInteger(data, entryOffset + 4);
+ entries[i]->SetDeviceType(integerValue);
+
+ integerValue = PitData::UnpackInteger(data, entryOffset + 8);
+ entries[i]->SetIdentifier(integerValue);
+
+ integerValue = PitData::UnpackInteger(data, entryOffset + 12);
+ entries[i]->SetAttributes(integerValue);
+
+ integerValue = PitData::UnpackInteger(data, entryOffset + 16);
+ entries[i]->SetUpdateAttributes(integerValue);
+
+ integerValue = PitData::UnpackInteger(data, entryOffset + 20);
+ entries[i]->SetBlockSizeOrOffset(integerValue);
+
+ integerValue = PitData::UnpackInteger(data, entryOffset + 24);
+ entries[i]->SetBlockCount(integerValue);
+
+ integerValue = PitData::UnpackInteger(data, entryOffset + 28);
+ entries[i]->SetFileOffset(integerValue);
+
+ integerValue = PitData::UnpackInteger(data, entryOffset + 32);
+ entries[i]->SetFileSize(integerValue);
+
+ entries[i]->SetPartitionName((const char *)data + entryOffset + 36);
+ entries[i]->SetFlashFilename((const char *)data + entryOffset + 36 + PitEntry::kPartitionNameMaxLength);
+ entries[i]->SetFotaFilename((const char *)data + entryOffset + 36 + PitEntry::kPartitionNameMaxLength + PitEntry::kFlashFilenameMaxLength);
+ }
+
+ return (true);
+}
+
+void PitData::Pack(unsigned char *data) const
+{
+ PitData::PackInteger(data, 0, PitData::kFileIdentifier);
+
+ PitData::PackInteger(data, 4, entryCount);
+
+ PitData::PackInteger(data, 8, unknown1);
+ PitData::PackInteger(data, 12, unknown2);
+
+ PitData::PackShort(data, 16, unknown3);
+ PitData::PackShort(data, 18, unknown4);
+
+ PitData::PackShort(data, 20, unknown5);
+ PitData::PackShort(data, 22, unknown6);
+
+ PitData::PackShort(data, 24, unknown7);
+ PitData::PackShort(data, 26, unknown8);
+
+ int entryOffset;
+
+ for (unsigned int i = 0; i < entryCount; i++)
+ {
+ entryOffset = PitData::kHeaderDataSize + i * PitEntry::kDataSize;
+
+ PitData::PackInteger(data, entryOffset, entries[i]->GetBinaryType());
+
+ PitData::PackInteger(data, entryOffset + 4, entries[i]->GetDeviceType());
+ PitData::PackInteger(data, entryOffset + 8, entries[i]->GetIdentifier());
+ PitData::PackInteger(data, entryOffset + 12, entries[i]->GetAttributes());
+
+ PitData::PackInteger(data, entryOffset + 16, entries[i]->GetUpdateAttributes());
+
+ PitData::PackInteger(data, entryOffset + 20, entries[i]->GetBlockSizeOrOffset());
+ PitData::PackInteger(data, entryOffset + 24, entries[i]->GetBlockCount());
+
+ PitData::PackInteger(data, entryOffset + 28, entries[i]->GetFileOffset());
+ PitData::PackInteger(data, entryOffset + 32, entries[i]->GetFileSize());
+
+ memcpy(data + entryOffset + 36, entries[i]->GetPartitionName(), PitEntry::kPartitionNameMaxLength);
+ memcpy(data + entryOffset + 36 + PitEntry::kPartitionNameMaxLength, entries[i]->GetFlashFilename(), PitEntry::kFlashFilenameMaxLength);
+ memcpy(data + entryOffset + 36 + PitEntry::kPartitionNameMaxLength + PitEntry::kFlashFilenameMaxLength,
+ entries[i]->GetFotaFilename(), PitEntry::kFotaFilenameMaxLength);
+ }
+}
+
+bool PitData::Matches(const PitData *otherPitData) const
+{
+ if (entryCount == otherPitData->entryCount && unknown1 == otherPitData->unknown1 && unknown2 == otherPitData->unknown2
+ && unknown3 == otherPitData->unknown3 && unknown4 == otherPitData->unknown4 && unknown5 == otherPitData->unknown5
+ && unknown6 == otherPitData->unknown6 && unknown7 == otherPitData->unknown7 && unknown8 == otherPitData->unknown8)
+ {
+ for (unsigned int i = 0; i < entryCount; i++)
+ {
+ if (!entries[i]->Matches(otherPitData->entries[i]))
+ return (false);
+ }
+
+ return (true);
+ }
+ else
+ {
+ return (false);
+ }
+}
+
+void PitData::Clear(void)
+{
+ entryCount = 0;
+
+ unknown1 = 0;
+ unknown2 = 0;
+
+ unknown3 = 0;
+ unknown4 = 0;
+
+ unknown5 = 0;
+ unknown6 = 0;
+
+ unknown7 = 0;
+ unknown8 = 0;
+
+ for (unsigned int i = 0; i < entries.size(); i++)
+ delete entries[i];
+
+ entries.clear();
+}
+
+PitEntry *PitData::GetEntry(unsigned int index)
+{
+ return (entries[index]);
+}
+
+const PitEntry *PitData::GetEntry(unsigned int index) const
+{
+ return (entries[index]);
+}
+
+PitEntry *PitData::FindEntry(const char *partitionName)
+{
+ for (unsigned int i = 0; i < entries.size(); i++)
+ {
+ if (entries[i]->IsFlashable() && strcmp(entries[i]->GetPartitionName(), partitionName) == 0)
+ return (entries[i]);
+ }
+
+ return (nullptr);
+}
+
+const PitEntry *PitData::FindEntry(const char *partitionName) const
+{
+ for (unsigned int i = 0; i < entries.size(); i++)
+ {
+ if (entries[i]->IsFlashable() && strcmp(entries[i]->GetPartitionName(), partitionName) == 0)
+ return (entries[i]);
+ }
+
+ return (nullptr);
+}
+
+PitEntry *PitData::FindEntry(unsigned int partitionIdentifier)
+{
+ for (unsigned int i = 0; i < entries.size(); i++)
+ {
+ if (entries[i]->IsFlashable() && entries[i]->GetIdentifier() == partitionIdentifier)
+ return (entries[i]);
+ }
+
+ return (nullptr);
+}
+
+const PitEntry *PitData::FindEntry(unsigned int partitionIdentifier) const
+{
+ for (unsigned int i = 0; i < entries.size(); i++)
+ {
+ if (entries[i]->IsFlashable() && entries[i]->GetIdentifier() == partitionIdentifier)
+ return (entries[i]);
+ }
+
+ return (nullptr);
+}