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Split lptools into vendor_lptools

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This commit is contained in:
Pierre-Hugues Husson 2021-11-19 10:50:35 -05:00
parent b66b7aa968
commit f179d6c320
2 changed files with 0 additions and 368 deletions
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59
cmds/Android.bp
View File

@ -183,65 +183,6 @@ cc_binary {
],
}
cc_binary {
name: "lptools",
cflags: [
"-Werror",
"-Wextra",
],
device_supported: true,
shared_libs: [
"libbase",
"liblog",
"liblp",
"libsparse",
"libfs_mgr",
"libutils",
"libcutils",
"android.hardware.boot@1.1",
"libhidlbase",
],
static_libs: [
"libdm",
],
srcs: [
"lptools.cc",
],
cppflags: [
"-D_FILE_OFFSET_BITS=64",
],
}
cc_binary {
name: "lptools_static",
cflags: [
"-Werror",
"-Wextra",
"-DLPTOOLS_STATIC",
],
device_supported: true,
shared_libs: [
"libcrypto",
],
static_libs: [
"libbase",
"liblog",
"liblp",
"libsparse",
"libfs_mgr",
"libutils",
"libcutils",
"libdm",
"libext4_utils",
],
srcs: [
"lptools.cc",
],
cppflags: [
"-D_FILE_OFFSET_BITS=64",
],
}
cc_binary {
name: "sec-camera-list",
srcs: [

309
cmds/lptools.cc
View File

@ -1,309 +0,0 @@
/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <getopt.h>
#include <inttypes.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <sys/types.h>
#include <sysexits.h>
#include <unistd.h>
#include <iostream>
#include <optional>
#include <regex>
#include <string>
#include <vector>
#include <chrono>
#include <android-base/parseint.h>
#include <android-base/properties.h>
#include <android-base/strings.h>
#include <cutils/android_get_control_file.h>
#include <fs_mgr.h>
#include <liblp/builder.h>
#include <liblp/liblp.h>
#include <fs_mgr_dm_linear.h>
#include <libdm/dm.h>
#ifndef LPTOOLS_STATIC
#include <android/hardware/boot/1.1/IBootControl.h>
#include <android/hardware/boot/1.1/types.h>
#endif
using namespace android;
using namespace android::fs_mgr;
class FileOrBlockDeviceOpener final : public PartitionOpener {
public:
android::base::unique_fd Open(const std::string& path, int flags) const override {
// Try a local file first.
android::base::unique_fd fd;
#ifdef __ANDROID__
fd.reset(android_get_control_file(path.c_str()));
if (fd >= 0) return fd;
#endif
fd.reset(open(path.c_str(), flags));
if (fd >= 0) return fd;
return PartitionOpener::Open(path, flags);
}
};
static FileOrBlockDeviceOpener opener;
std::unique_ptr<MetadataBuilder> makeBuilder() {
auto builder = MetadataBuilder::New(opener, "super", 0);
if(builder == nullptr) {
std::cout << "Failed creating super builder" << std::endl;
}
return builder;
}
void saveToDisk(std::unique_ptr<MetadataBuilder> builder) {
auto newMetadata = builder->Export();
int nSlots = 2;//pt->geometry.metadata_slot_count;
for(int slot=0; slot < nSlots; slot++) {
std::cout << "Saving the updated partition table " << UpdatePartitionTable(opener, "super", *newMetadata, slot) << " for slot " << slot << std::endl;
}
}
inline bool ends_with(std::string const & value, std::string const & ending)
{
if (ending.size() > value.size()) return false;
return std::equal(ending.rbegin(), ending.rend(), value.rbegin());
}
std::string findGroup(std::unique_ptr<MetadataBuilder>& builder) {
auto groups = builder->ListGroups();
auto partitionName = "system" + ::android::base::GetProperty("ro.boot.slot_suffix", "");
for(auto groupName: groups) {
auto partitions = builder->ListPartitionsInGroup(groupName);
for (const auto& partition : partitions) {
if(partition->name() == partitionName) {
return groupName;
}
}
}
std::string maxGroup = "";
uint64_t maxGroupSize = 0;
for(auto groupName: groups) {
auto group = builder->FindGroup(groupName);
if(group->maximum_size() > maxGroupSize) {
maxGroup = groupName;
maxGroupSize = group->maximum_size();
}
}
return maxGroup;
}
int main(int argc, char **argv) {
if(argc<=1) {
std::cerr << "Usage: " << argv[0] << " <create|remove|resize|rename>" << std::endl;
exit(1);
}
auto builder = makeBuilder();
auto group = findGroup(builder);
std::cout << "Best group seems to be " << group << std::endl;
if(strcmp(argv[1], "create") == 0) {
if(argc != 4) {
std::cerr << "Usage: " << argv[0] << " create <partition name> <partition size>" << std::endl;
exit(1);
}
auto partName = argv[2];
auto size = strtoll(argv[3], NULL, 0);
auto partition = builder->FindPartition(partName);
if(partition != nullptr) {
std::cerr << "Partition " << partName << " already exists." << std::endl;
exit(1);
}
partition = builder->AddPartition(partName, group, 0);
auto result = builder->ResizePartition(partition, size);
std::cout << "Growing partition " << result << std::endl;
if(!result) return 1;
saveToDisk(std::move(builder));
std::string dmPath;
CreateLogicalPartitionParams params {
.block_device = "/dev/block/by-name/super",
.metadata_slot = 0,
.partition_name = partName,
.timeout_ms = std::chrono::milliseconds(10000),
.force_writable = true,
};
auto dmCreateRes = android::fs_mgr::CreateLogicalPartition(params, &dmPath);
std::cout << "Creating dm partition for " << partName << " answered " << dmCreateRes << " at " << dmPath << std::endl;
exit(0);
} else if(strcmp(argv[1], "remove") == 0) {
if(argc != 3) {
std::cerr << "Usage: " << argv[0] << " remove <partition name>" << std::endl;
exit(1);
}
auto partName = argv[2];
auto dmState = android::dm::DeviceMapper::Instance().GetState(partName);
if(dmState == android::dm::DmDeviceState::ACTIVE) {
android::fs_mgr::DestroyLogicalPartition(partName);
}
builder->RemovePartition(partName);
saveToDisk(std::move(builder));
exit(0);
} else if(strcmp(argv[1], "resize") == 0) {
if(argc != 4) {
std::cerr << "Usage: " << argv[0] << " resize <partition name> <newsize>" << std::endl;
exit(1);
}
auto partName = argv[2];
auto size = strtoll(argv[3], NULL, 0);
auto partition = builder->FindPartition(partName);
std::cout << "Resizing partition " << builder->ResizePartition(partition, size) << std::endl;
saveToDisk(std::move(builder));
exit(0);
} else if(strcmp(argv[1], "replace") == 0) {
if(argc != 4) {
std::cerr << "Usage: " << argv[0] << " replace <original partition name> <new partition name>" << std::endl;
std::cerr << "This will delete <new partition name> and rename <original partition name> to <new partition name>" << std::endl;
exit(1);
}
auto src = argv[2];
auto dst = argv[3];
auto srcPartition = builder->FindPartition(src);
if(srcPartition == nullptr) {
srcPartition = builder->FindPartition(src + ::android::base::GetProperty("ro.boot.slot_suffix", ""));
}
auto dstPartition = builder->FindPartition(dst);
if(dstPartition == nullptr) {
dstPartition = builder->FindPartition(dst + ::android::base::GetProperty("ro.boot.slot_suffix", ""));
}
std::string dstPartitionName = dst;
if(dstPartition != nullptr) {
dstPartitionName = dstPartition->name();
}
std::vector<std::unique_ptr<Extent>> originalExtents;
const auto& extents = srcPartition->extents();
for(unsigned i=0; i<extents.size(); i++) {
const auto& extend = extents[i];
auto linear = extend->AsLinearExtent();
if(linear != nullptr) {
auto copyLinear = std::make_unique<LinearExtent>(linear->num_sectors(), linear->device_index(), linear->physical_sector());
originalExtents.push_back(std::move(copyLinear));
} else {
auto copyZero = std::make_unique<ZeroExtent>(extend->num_sectors());
originalExtents.push_back(std::move(copyZero));
}
}
builder->RemovePartition(srcPartition->name());
builder->RemovePartition(dstPartitionName);
auto newDstPartition = builder->AddPartition(dstPartitionName, group, 0);
for(auto&& extent: originalExtents) {
newDstPartition->AddExtent(std::move(extent));
}
saveToDisk(std::move(builder));
exit(0);
} else if(strcmp(argv[1], "map") == 0) {
if(argc != 3) {
std::cerr << "Usage: " << argv[0] << " map <partition name>" << std::endl;
exit(1);
}
auto partName = argv[2];
std::string dmPath;
CreateLogicalPartitionParams params {
.block_device = "/dev/block/by-name/super",
.metadata_slot = 0,
.partition_name = partName,
.timeout_ms = std::chrono::milliseconds(10000),
.force_writable = true,
};
auto dmCreateRes = android::fs_mgr::CreateLogicalPartition(params, &dmPath);
std::cout << "Creating dm partition for " << partName << " answered " << dmCreateRes << " at " << dmPath << std::endl;
exit(0);
} else if(strcmp(argv[1], "unmap") == 0) {
if(argc != 3) {
std::cerr << "Usage: " << argv[0] << " unmap <partition name>" << std::endl;
exit(1);
}
auto partName = argv[2];
auto dmState = android::dm::DeviceMapper::Instance().GetState(partName);
if(dmState == android::dm::DmDeviceState::ACTIVE) {
android::fs_mgr::DestroyLogicalPartition(partName);
}
exit(0);
} else if(strcmp(argv[1], "free") == 0) {
if(argc != 2) {
std::cerr << "Usage: " << argv[0] << " free" << std::endl;
exit(1);
}
auto groupO = builder->FindGroup(group);
uint64_t maxSize = groupO->maximum_size();
uint64_t total = 0;
auto partitions = builder->ListPartitionsInGroup(group);
for (const auto& partition : partitions) {
total += partition->BytesOnDisk();
}
uint64_t groupAllocatable = maxSize - total;
uint64_t superFreeSpace = builder->AllocatableSpace() - builder->UsedSpace();
if(groupAllocatable > superFreeSpace || maxSize == 0)
groupAllocatable = superFreeSpace;
printf("Free space: %" PRIu64 "\n", groupAllocatable);
exit(0);
} else if(strcmp(argv[1], "unlimited-group") == 0) {
builder->ChangeGroupSize(group, 0);
saveToDisk(std::move(builder));
return 0;
} else if(strcmp(argv[1], "clear-cow") == 0) {
#ifndef LPTOOLS_STATIC
// Ensure this is a V AB device, and that no merging is taking place (merging? in gsi? uh)
auto svc1_1 = ::android::hardware::boot::V1_1::IBootControl::tryGetService();
if(svc1_1 == nullptr) {
std::cerr << "Couldn't get a bootcontrol HAL. You can clear cow only on V AB devices" << std::endl;
return 1;
}
auto mergeStatus = svc1_1->getSnapshotMergeStatus();
if(mergeStatus != ::android::hardware::boot::V1_1::MergeStatus::NONE) {
std::cerr << "Merge status is NOT none, meaning a merge is pending. Clearing COW isn't safe" << std::endl;
return 1;
}
#endif
uint64_t superFreeSpace = builder->AllocatableSpace() - builder->UsedSpace();
std::cerr << "Super allocatable " << superFreeSpace << std::endl;
uint64_t total = 0;
auto partitions = builder->ListPartitionsInGroup("cow");
for (const auto& partition : partitions) {
std::cout << "Deleting partition? " << partition->name() << std::endl;
if(ends_with(partition->name(), "-cow")) {
std::cout << "Deleting partition " << partition->name() << std::endl;
builder->RemovePartition(partition->name());
}
}
saveToDisk(std::move(builder));
return 0;
}
return 0;
}