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fs/fs_dev: Added fsOpenReadOnlySaveDataFileSystem and fsOpen_SaveDataReadOnly/fsdevMountSaveDataReadOnly. Minor adjustments.

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yellows8 2020-04-03 19:46:38 -04:00
parent fa52f9b046
commit c82c8b8760
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4 changed files with 53 additions and 3 deletions
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4
nx/include/switch/runtime/devices/fs_dev.h
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@ -33,6 +33,10 @@ Result fsdevMountSdmc(void);
/// Mounts the specified SaveData.
Result fsdevMountSaveData(const char *name, u64 application_id, AccountUid uid);
/// Mounts the specified SaveData as ReadOnly.
/// Only available on [2.0.0+].
Result fsdevMountSaveDataReadOnly(const char *name, u64 application_id, AccountUid uid);
/// Mounts the specified BcatSaveData.
Result fsdevMountBcatSaveData(const char *name, u64 application_id);

12
nx/include/switch/services/fs.h
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@ -323,16 +323,17 @@ Result fsOpenBisStorage(FsStorage* out, FsBisPartitionId partitionId);
Result fsOpenSdCardFileSystem(FsFileSystem* out);
Result fsCreateSaveDataFileSystemBySystemSaveDataId(const FsSaveDataAttribute* attr, const FsSaveDataCreationInfo* creation_info);
Result fsDeleteSaveDataFileSystemBySaveDataSpaceId(FsSaveDataSpaceId save_data_space_id, u64 saveID); /// [2.0.0+]
Result fsDeleteSaveDataFileSystemBySaveDataSpaceId(FsSaveDataSpaceId save_data_space_id, u64 saveID); ///< [2.0.0+]
Result fsIsExFatSupported(bool* out);
Result fsOpenGameCardFileSystem(FsFileSystem* out, const FsGameCardHandle* handle, FsGameCardPartition partition);
Result fsExtendSaveDataFileSystem(FsSaveDataSpaceId save_data_space_id, u64 saveID, s64 dataSize, s64 journalSize); /// [3.0.0+]
Result fsExtendSaveDataFileSystem(FsSaveDataSpaceId save_data_space_id, u64 saveID, s64 dataSize, s64 journalSize); ///< [3.0.0+]
Result fsOpenSaveDataFileSystem(FsFileSystem* out, FsSaveDataSpaceId save_data_space_id, const FsSaveDataAttribute *attr);
Result fsOpenSaveDataFileSystemBySystemSaveDataId(FsFileSystem* out, FsSaveDataSpaceId save_data_space_id, const FsSaveDataAttribute *attr);
Result fsOpenReadOnlySaveDataFileSystem(FsFileSystem* out, FsSaveDataSpaceId save_data_space_id, const FsSaveDataAttribute *attr); ///< [2.0.0+].
Result fsReadSaveDataFileSystemExtraDataBySaveDataSpaceId(void* buf, size_t len, FsSaveDataSpaceId save_data_space_id, u64 saveID);
Result fsReadSaveDataFileSystemExtraData(void* buf, size_t len, u64 saveID);
@ -342,7 +343,7 @@ Result fsOpenSaveDataInfoReader(FsSaveDataInfoReader* out, FsSaveDataSpaceId sav
Result fsOpenImageDirectoryFileSystem(FsFileSystem* out, FsImageDirectoryId image_directory_id);
Result fsOpenContentStorageFileSystem(FsFileSystem* out, FsContentStorageId content_storage_id);
Result fsOpenCustomStorageFileSystem(FsFileSystem* out, FsCustomStorageId custom_storage_id); /// [7.0.0+]
Result fsOpenCustomStorageFileSystem(FsFileSystem* out, FsCustomStorageId custom_storage_id); ///< [7.0.0+]
Result fsOpenDataStorageByCurrentProcess(FsStorage* out);
Result fsOpenDataStorageByDataId(FsStorage* out, u64 dataId, NcmStorageId storageId);
@ -371,6 +372,11 @@ Result fsCreate_SystemSaveData(FsSaveDataSpaceId save_data_space_id, u64 system_
/// See \ref FsSaveDataAttribute for application_id and uid.
Result fsOpen_SaveData(FsFileSystem* out, u64 application_id, AccountUid uid);
/// Wrapper for fsOpenReadOnlySaveDataFileSystem.
/// Only available on [2.0.0+].
/// See \ref FsSaveDataAttribute for application_id and uid.
Result fsOpen_SaveDataReadOnly(FsFileSystem* out, u64 application_id, AccountUid uid);
/// Wrapper for fsOpenSaveDataFileSystem, for opening BcatSaveData.
Result fsOpen_BcatSaveData(FsFileSystem* out, u64 application_id);

13
nx/source/runtime/devices/fs_dev.c
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@ -465,6 +465,19 @@ Result fsdevMountSaveData(const char *name, u64 application_id, AccountUid uid)
return rc;
}
Result fsdevMountSaveDataReadOnly(const char *name, u64 application_id, AccountUid uid)
{
FsFileSystem fs;
Result rc = fsOpen_SaveDataReadOnly(&fs, application_id, uid);
if(R_SUCCEEDED(rc))
{
int ret = fsdevMountDevice(name, fs);
if(ret==-1)
rc = MAKERESULT(Module_Libnx, LibnxError_OutOfMemory);
}
return rc;
}
Result fsdevMountBcatSaveData(const char *name, u64 application_id)
{
FsFileSystem fs;

27
nx/source/services/fs.c
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@ -293,6 +293,22 @@ Result fsOpenSaveDataFileSystemBySystemSaveDataId(FsFileSystem* out, FsSaveDataS
);
}
Result fsOpenReadOnlySaveDataFileSystem(FsFileSystem* out, FsSaveDataSpaceId save_data_space_id, const FsSaveDataAttribute *attr) {
if (hosversionBefore(2,0,0))
return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
const struct {
u8 save_data_space_id;
u8 pad[7];
FsSaveDataAttribute attr;
} in = { (u8)save_data_space_id, {0}, *attr };
return _fsObjectDispatchIn(&g_fsSrv, 53, in,
.out_num_objects = 1,
.out_objects = &out->s,
);
}
Result fsReadSaveDataFileSystemExtraDataBySaveDataSpaceId(void* buf, size_t len, FsSaveDataSpaceId save_data_space_id, u64 saveID) {
if (hosversionBefore(3,0,0))
return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
@ -494,6 +510,17 @@ Result fsOpen_SaveData(FsFileSystem* out, u64 application_id, AccountUid uid) {
return fsOpenSaveDataFileSystem(out, FsSaveDataSpaceId_User, &attr);
}
Result fsOpen_SaveDataReadOnly(FsFileSystem* out, u64 application_id, AccountUid uid) {
FsSaveDataAttribute attr;
memset(&attr, 0, sizeof(attr));
attr.application_id = application_id;
attr.uid = uid;
attr.save_data_type = FsSaveDataType_Account;
return fsOpenReadOnlySaveDataFileSystem(out, FsSaveDataSpaceId_User, &attr);
}
Result fsOpen_BcatSaveData(FsFileSystem* out, u64 application_id) {
FsSaveDataAttribute attr;