61 bool DeviceMapper::CreateDevice(const std::string& name, const std::string& uuid) {  in CreateDevice()  argument
62     if (name.empty()) {  in CreateDevice()
66     if (name.size() >= DM_NAME_LEN) {  in CreateDevice()
67         LOG(ERROR) << "[" << name << "] is too long to be device mapper name";  in CreateDevice()
72     InitIo(&io, name);  in CreateDevice()
78         PLOG(ERROR) << "DM_DEV_CREATE failed for [" << name << "]";  in CreateDevice()
84     CHECK(io.target_count == 0) << "Unexpected targets for newly created [" << name << "] device";  in CreateDevice()
85     CHECK(io.open_count == 0) << "Unexpected opens for newly created [" << name << "] device";  in CreateDevice()
91 bool DeviceMapper::DeleteDeviceIfExists(const std::string& name,  in DeleteDeviceIfExists()  argument
93     if (GetState(name) == DmDeviceState::INVALID) {  in DeleteDeviceIfExists()
96     return DeleteDevice(name, timeout_ms);  in DeleteDeviceIfExists()
99 bool DeviceMapper::DeleteDeviceIfExists(const std::string& name) {  in DeleteDeviceIfExists()  argument
100     return DeleteDeviceIfExists(name, 0ms);  in DeleteDeviceIfExists()
103 bool DeviceMapper::DeleteDevice(const std::string& name,  in DeleteDevice()  argument
106     if (!GetDeviceUniquePath(name, &unique_path)) {  in DeleteDevice()
107         LOG(ERROR) << "Failed to get unique path for device " << name;  in DeleteDevice()
110     InitIo(&io, name);  in DeleteDevice()
113         PLOG(ERROR) << "DM_DEV_REMOVE failed for [" << name << "]";  in DeleteDevice()
120         LOG(ERROR) << "Didn't generate uevent for [" << name << "] removal";  in DeleteDevice()
137 bool DeviceMapper::DeleteDevice(const std::string& name) {  in DeleteDevice()  argument
138     return DeleteDevice(name, 0ms);  in DeleteDevice()
141 bool DeviceMapper::DeleteDeviceDeferred(const std::string& name) {  in DeleteDeviceDeferred()  argument
143     InitIo(&io, name);  in DeleteDeviceDeferred()
147         PLOG(ERROR) << "DM_DEV_REMOVE with DM_DEFERRED_REMOVE failed for [" << name << "]";  in DeleteDeviceDeferred()
153 bool DeviceMapper::DeleteDeviceIfExistsDeferred(const std::string& name) {  in DeleteDeviceIfExistsDeferred()  argument
154     if (GetState(name) == DmDeviceState::INVALID) {  in DeleteDeviceIfExistsDeferred()
157     return DeleteDeviceDeferred(name);  in DeleteDeviceIfExistsDeferred()
174 bool DeviceMapper::CreateEmptyDevice(const std::string& name) {  in CreateEmptyDevice()  argument
176     return CreateDevice(name, uuid);  in CreateEmptyDevice()
179 bool DeviceMapper::WaitForDevice(const std::string& name,  in WaitForDevice()  argument
185     if (!GetDeviceUniquePath(name, &unique_path) || !GetDmDevicePathByName(name, path)) {  in WaitForDevice()
186         DeleteDevice(name);  in WaitForDevice()
205         DeleteDevice(name);  in WaitForDevice()
211 bool DeviceMapper::CreateDevice(const std::string& name, const DmTable& table, std::string* path,  in CreateDevice()  argument
213     if (!CreateEmptyDevice(name)) {  in CreateDevice()
217     if (!LoadTableAndActivate(name, table)) {  in CreateDevice()
218         DeleteDevice(name);  in CreateDevice()
222     if (!WaitForDevice(name, timeout_ms, path)) {  in CreateDevice()
223         DeleteDevice(name);  in CreateDevice()
230 bool DeviceMapper::GetDeviceUniquePath(const std::string& name, std::string* path) {  in GetDeviceUniquePath()  argument
232     InitIo(&io, name);  in GetDeviceUniquePath()
234         PLOG(ERROR) << "Failed to get device path: " << name;  in GetDeviceUniquePath()
239         LOG(ERROR) << "Device does not have a unique path: " << name;  in GetDeviceUniquePath()
246 bool DeviceMapper::GetDeviceNameAndUuid(dev_t dev, std::string* name, std::string* uuid) {  in GetDeviceNameAndUuid()  argument
256     if (name) {  in GetDeviceNameAndUuid()
257         *name = io.name;  in GetDeviceNameAndUuid()
265 std::optional<DeviceMapper::Info> DeviceMapper::GetDetailedInfo(const std::string& name) const {  in GetDetailedInfo()
267     InitIo(&io, name);  in GetDetailedInfo()
274 DmDeviceState DeviceMapper::GetState(const std::string& name) const {  in GetState()
276     InitIo(&io, name);  in GetState()
286 bool DeviceMapper::ChangeState(const std::string& name, DmDeviceState state) {  in ChangeState()  argument
292     InitIo(&io, name);  in ChangeState()
304 bool DeviceMapper::CreateDevice(const std::string& name, const DmTable& table) {  in CreateDevice()  argument
306     if (!CreateDevice(name, table, &ignore_path, 0ms)) {  in CreateDevice()
312 bool DeviceMapper::LoadTable(const std::string& name, const DmTable& table) {  in LoadTable()  argument
317     InitIo(io, name);  in LoadTable()
331 bool DeviceMapper::LoadTableAndActivate(const std::string& name, const DmTable& table) {  in LoadTableAndActivate()  argument
332     if (!LoadTable(name, table)) {  in LoadTableAndActivate()
337     InitIo(&io, name);  in LoadTableAndActivate()
409 bool DeviceMapper::GetTargetByName(const std::string& name, DmTargetTypeInfo* info) {  in GetTargetByName()  argument
415         if (target.name() == name) {  in GetTargetByName()
488 bool DeviceMapper::GetDmDevicePathByName(const std::string& name, std::string* path) {  in GetDmDevicePathByName()  argument
490     InitIo(&io, name);  in GetDmDevicePathByName()
492         PLOG(WARNING) << "DM_DEV_STATUS failed for " << name;  in GetDmDevicePathByName()
503 bool DeviceMapper::GetDmDeviceUuidByName(const std::string& name, std::string* uuid) {  in GetDmDeviceUuidByName()  argument
505     InitIo(&io, name);  in GetDmDeviceUuidByName()
507         PLOG(WARNING) << "DM_DEV_STATUS failed for " << name;  in GetDmDeviceUuidByName()
515 bool DeviceMapper::GetDeviceNumber(const std::string& name, dev_t* dev) {  in GetDeviceNumber()  argument
517     InitIo(&io, name);  in GetDeviceNumber()
519         PLOG(WARNING) << "DM_DEV_STATUS failed for " << name;  in GetDeviceNumber()
526 bool DeviceMapper::GetDeviceString(const std::string& name, std::string* dev) {  in GetDeviceString()  argument
528     if (!GetDeviceNumber(name, &num)) {  in GetDeviceString()
535 bool DeviceMapper::GetTableStatus(const std::string& name, std::vector<TargetInfo>* table) {  in GetTableStatus()  argument
536     return GetTable(name, 0, table);  in GetTableStatus()
539 bool DeviceMapper::GetTableInfo(const std::string& name, std::vector<TargetInfo>* table) {  in GetTableInfo()  argument
540     return GetTable(name, DM_STATUS_TABLE_FLAG, table);  in GetTableInfo()
544 bool DeviceMapper::GetTable(const std::string& name, uint32_t flags,  in GetTable()  argument
552         InitIo(io, name);  in GetTable()
557             PLOG(ERROR) << "DM_TABLE_STATUS failed for " << name;  in GetTable()
587 void DeviceMapper::InitIo(struct dm_ioctl* io, const std::string& name) const {  in InitIo()
596     if (!name.empty()) {  in InitIo()
597         snprintf(io->name, sizeof(io->name), "%s", name.c_str());  in InitIo()
618     std::optional<std::string> name = ExtractBlockDeviceName(path);  in IsDmBlockDevice()  local
619     return name && android::base::StartsWith(*name, "dm-");  in IsDmBlockDevice()
623     std::optional<std::string> name = ExtractBlockDeviceName(path);  in GetDmDeviceNameByPath()  local
624     if (!name) {  in GetDmDeviceNameByPath()
628     if (!android::base::StartsWith(*name, "dm-")) {  in GetDmDeviceNameByPath()
632     std::string dm_name_file = "/sys/block/" + *name + "/dm/name";  in GetDmDeviceNameByPath()
643     std::optional<std::string> name = ExtractBlockDeviceName(path);  in GetParentBlockDeviceByPath()  local
644     if (!name) {  in GetParentBlockDeviceByPath()
648     if (!android::base::StartsWith(*name, "dm-")) {  in GetParentBlockDeviceByPath()
652     auto slaves_dir = "/sys/block/" + *name + "/slaves";  in GetParentBlockDeviceByPath()
734 bool DeviceMapper::CreatePlaceholderDevice(const std::string& name) {  in CreatePlaceholderDevice()  argument
735     if (!CreateEmptyDevice(name)) {  in CreatePlaceholderDevice()
750         if (!LoadTable(name, table)) {  in CreatePlaceholderDevice()