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https://github.com/Lime3DS/Lime3DS
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FS: Implement OpenArchive, OpenDirectory, OpenFile and OpenFileDirectly calls.
This commit is contained in:
Emmanuel Gil Peyrot
parent
c197ce2180
commit
99bfa4ae1f
1 changed files with 176 additions and 19 deletions
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@ -12,35 +12,192 @@
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namespace FS_User {
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// Command to access archive file
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enum class LowPathType : u32 {
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Invalid = 0,
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Empty = 1,
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Binary = 2,
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Char = 3,
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Wchar = 4
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};
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std::string GetStringFromCmdBuff(const u32 pointer, const u32 size) {
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auto data = reinterpret_cast<const char*>(Memory::GetPointer(pointer));
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return std::string(data, size - 1);
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}
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// We currently return 0 for success and -1 for failure in cmd_buff[1]. -1 was chosen because it
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// puts all the sections of the http://3dbrew.org/wiki/Error_codes to something non-zero, to make
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// sure we don't mislead the application into thinking something worked.
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void Initialize(Service::Interface* self) {
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u32* cmd_buff = Service::GetCommandBuffer();
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cmd_buff[1] = 0; // No error
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// TODO(Link Mauve): check the behavior when cmd_buff[1] isn't 32, as per
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// http://3dbrew.org/wiki/FS:Initialize#Request
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cmd_buff[1] = 0;
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DEBUG_LOG(KERNEL, "called");
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}
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void OpenFile(Service::Interface* self) {
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u32* cmd_buff = Service::GetCommandBuffer();
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u32 transaction = cmd_buff[1];
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// TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
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// 3dmoo's or ctrulib's implementations. Triple check if it's really the case.
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Handle archive_handle = static_cast<Handle>(cmd_buff[3]);
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LowPathType type = static_cast<LowPathType>(cmd_buff[4]);
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u32 size = cmd_buff[5];
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FileSys::Mode mode; mode.hex = cmd_buff[6];
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u32 attributes = cmd_buff[7]; // TODO(Link Mauve): do something with those attributes.
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u32 pointer = cmd_buff[9];
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if (type != LowPathType::Char) {
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ERROR_LOG(KERNEL, "file LowPath type other than char is currently unsupported");
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cmd_buff[1] = -1;
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return;
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}
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std::string file_name = GetStringFromCmdBuff(pointer, size);
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DEBUG_LOG(KERNEL, "type=%d size=%d mode=%d attrs=%d data=%s", type, size, mode, attributes, file_name.c_str());
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Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_name, mode);
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if (handle) {
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cmd_buff[1] = 0;
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cmd_buff[3] = handle;
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} else {
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ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_name.c_str());
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// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
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cmd_buff[1] = -1;
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}
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DEBUG_LOG(KERNEL, "called");
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}
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void OpenFileDirectly(Service::Interface* self) {
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u32* cmd_buff = Service::GetCommandBuffer();
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FileSys::Archive::IdCode arch_id = static_cast<FileSys::Archive::IdCode>(cmd_buff[2]);
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u32 transaction = cmd_buff[1];
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auto archive_id = static_cast<FileSys::Archive::IdCode>(cmd_buff[2]);
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LowPathType archive_type = static_cast<LowPathType>(cmd_buff[3]);
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u32 archive_size = cmd_buff[4];
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LowPathType type = static_cast<LowPathType>(cmd_buff[5]);
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u32 size = cmd_buff[6];
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FileSys::Mode mode; mode.hex = cmd_buff[7];
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u32 attributes = cmd_buff[8]; // TODO(Link Mauve): do something with those attributes.
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u32 archive_pointer = cmd_buff[10];
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u32 pointer = cmd_buff[12];
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// TODO(bunnei): Properly implement use of these...
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//u32 transaction = cmd_buff[1];
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//u32 arch_lowpath_type = cmd_buff[3];
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//u32 arch_lowpath_sz = cmd_buff[4];
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//u32 file_lowpath_type = cmd_buff[5];
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//u32 file_lowpath_sz = cmd_buff[6];
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//u32 flags = cmd_buff[7];
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//u32 attr = cmd_buff[8];
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//u32 arch_lowpath_desc = cmd_buff[9];
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//u32 arch_lowpath_ptr = cmd_buff[10];
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//u32 file_lowpath_desc = cmd_buff[11];
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//u32 file_lowpath_ptr = cmd_buff[12];
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if (archive_type != LowPathType::Empty) {
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ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
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cmd_buff[1] = -1;
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return;
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}
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if (type != LowPathType::Char) {
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ERROR_LOG(KERNEL, "file LowPath type other than char is currently unsupported");
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cmd_buff[1] = -1;
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return;
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}
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std::string archive_name = GetStringFromCmdBuff(archive_pointer, archive_size);
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std::string file_name = GetStringFromCmdBuff(pointer, size);
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DEBUG_LOG(KERNEL, "archive_type=%d archive_size=%d archive_data=%s"
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"file_type=%d file_size=%d file_mode=%d file_attrs=%d file_data=%s",
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archive_type, archive_size, archive_name.c_str(),
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type, size, mode, attributes, file_name.c_str());
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// TODO(Link Mauve): check if we should even get a handle for the archive, and don't leak it.
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Handle archive_handle = Kernel::OpenArchive(archive_id);
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if (archive_handle) {
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cmd_buff[1] = 0;
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// cmd_buff[2] isn't used according to 3dmoo's implementation.
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cmd_buff[3] = archive_handle;
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} else {
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ERROR_LOG(KERNEL, "failed to get a handle for archive %s", archive_name.c_str());
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// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
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cmd_buff[1] = -1;
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return;
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}
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Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_name, mode);
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if (handle) {
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cmd_buff[1] = 0;
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cmd_buff[3] = handle;
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} else {
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ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_name.c_str());
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// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
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cmd_buff[1] = -1;
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}
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DEBUG_LOG(KERNEL, "called");
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}
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void OpenDirectory(Service::Interface* self) {
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u32* cmd_buff = Service::GetCommandBuffer();
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// TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
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// 3dmoo's or ctrulib's implementations. Triple check if it's really the case.
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Handle archive_handle = static_cast<Handle>(cmd_buff[2]);
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LowPathType type = static_cast<LowPathType>(cmd_buff[3]);
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u32 size = cmd_buff[4];
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u32 pointer = cmd_buff[6];
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if (type != LowPathType::Char) {
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ERROR_LOG(KERNEL, "directory LowPath type other than char is currently unsupported");
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cmd_buff[1] = -1;
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return;
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}
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std::string dir_name = GetStringFromCmdBuff(pointer, size);
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DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", type, size, dir_name.c_str());
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Handle handle = Kernel::OpenDirectoryFromArchive(archive_handle, dir_name);
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if (handle) {
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cmd_buff[1] = 0;
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cmd_buff[3] = handle;
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} else {
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ERROR_LOG(KERNEL, "failed to get a handle for directory %s", dir_name.c_str());
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// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
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cmd_buff[1] = -1;
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}
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DEBUG_LOG(KERNEL, "called");
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}
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void OpenArchive(Service::Interface* self) {
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u32* cmd_buff = Service::GetCommandBuffer();
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auto arch_id = static_cast<FileSys::Archive::IdCode>(cmd_buff[1]);
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LowPathType type = static_cast<LowPathType>(cmd_buff[2]);
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u32 size = cmd_buff[3];
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u32 pointer = cmd_buff[5];
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if (type != LowPathType::Empty) {
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ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
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cmd_buff[1] = -1;
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return;
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}
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std::string archive_name = GetStringFromCmdBuff(pointer, size);
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DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", type, size, archive_name.c_str());
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Handle handle = Kernel::OpenArchive(arch_id);
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if (0 != handle) {
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cmd_buff[1] = 0; // No error
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if (handle) {
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cmd_buff[1] = 0;
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// cmd_buff[2] isn't used according to 3dmoo's implementation.
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cmd_buff[3] = handle;
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} else {
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ERROR_LOG(KERNEL, "failed to get a handle for archive %s", archive_name.c_str());
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// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
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cmd_buff[1] = -1;
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}
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DEBUG_LOG(KERNEL, "called");
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}
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@ -48,7 +205,7 @@ const Interface::FunctionInfo FunctionTable[] = {
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{0x000100C6, nullptr, "Dummy1"},
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{0x040100C4, nullptr, "Control"},
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{0x08010002, Initialize, "Initialize"},
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{0x080201C2, nullptr, "OpenFile"},
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{0x080201C2, OpenFile, "OpenFile"},
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{0x08030204, OpenFileDirectly, "OpenFileDirectly"},
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{0x08040142, nullptr, "DeleteFile"},
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{0x08050244, nullptr, "RenameFile"},
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@ -57,8 +214,8 @@ const Interface::FunctionInfo FunctionTable[] = {
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{0x08080202, nullptr, "CreateFile"},
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{0x08090182, nullptr, "CreateDirectory"},
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{0x080A0244, nullptr, "RenameDirectory"},
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{0x080B0102, nullptr, "OpenDirectory"},
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{0x080C00C2, nullptr, "OpenArchive"},
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{0x080B0102, OpenDirectory, "OpenDirectory"},
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{0x080C00C2, OpenArchive, "OpenArchive"},
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{0x080D0144, nullptr, "ControlArchive"},
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{0x080E0080, nullptr, "CloseArchive"},
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{0x080F0180, nullptr, "FormatThisUserSaveData"},
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