mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-29 23:32:23 +00:00
304 lines
8.7 KiB
C++
304 lines
8.7 KiB
C++
/*
|
|
* Copyright (c) 2018-2019 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <unordered_map>
|
|
#include <switch.h>
|
|
#include "dmnt_service.hpp"
|
|
|
|
enum TIOCreateOption : u32 {
|
|
TIOCreateOption_CreateNew = 1,
|
|
TIOCreateOption_CreateAlways = 2,
|
|
TIOCreateOption_OpenExisting = 3,
|
|
TIOCreateOption_OpenAlways = 4,
|
|
TIOCreateOption_ResetSize = 5,
|
|
};
|
|
|
|
/* Nintendo uses actual pointers as file handles. We'll add a layer of indirection... */
|
|
static bool g_sd_initialized = false;
|
|
static HosMutex g_sd_lock;
|
|
static FsFileSystem g_sd_fs;
|
|
|
|
static HosMutex g_file_handle_lock;
|
|
static u64 g_cur_fd = 0;
|
|
static std::unordered_map<u64, FsFile> g_file_handles;
|
|
|
|
static Result EnsureSdInitialized() {
|
|
std::scoped_lock<HosMutex> lk(g_sd_lock);
|
|
if (g_sd_initialized) {
|
|
return ResultSuccess;
|
|
}
|
|
|
|
Result rc = fsMountSdcard(&g_sd_fs);
|
|
if (R_SUCCEEDED(rc)) {
|
|
g_sd_initialized = true;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static u64 GetFileHandle(FsFile f) {
|
|
std::scoped_lock<HosMutex> lk(g_file_handle_lock);
|
|
|
|
u64 fd = g_cur_fd++;
|
|
g_file_handles[fd] = f;
|
|
return fd;
|
|
}
|
|
|
|
static Result GetFileByHandle(FsFile *out, u64 handle) {
|
|
std::scoped_lock<HosMutex> lk(g_file_handle_lock);
|
|
if (g_file_handles.find(handle) != g_file_handles.end()) {
|
|
*out = g_file_handles[handle];
|
|
return ResultSuccess;
|
|
}
|
|
return ResultFsInvalidArgument;
|
|
}
|
|
|
|
static Result CloseFileByHandle(u64 handle) {
|
|
std::scoped_lock<HosMutex> lk(g_file_handle_lock);
|
|
if (g_file_handles.find(handle) != g_file_handles.end()) {
|
|
fsFileClose(&g_file_handles[handle]);
|
|
g_file_handles.erase(handle);
|
|
return ResultSuccess;
|
|
}
|
|
return ResultFsInvalidArgument;
|
|
}
|
|
|
|
static void FixPath(char *dst, size_t dst_size, InBuffer<char> &path) {
|
|
dst[dst_size - 1] = 0;
|
|
strncpy(dst, "/", dst_size - 1);
|
|
|
|
const char *src = path.buffer;
|
|
size_t src_idx = 0;
|
|
size_t dst_idx = 1;
|
|
while (src_idx < path.num_elements && (src[src_idx] == '/' || src[src_idx] == '\\')) {
|
|
src_idx++;
|
|
}
|
|
|
|
while (src_idx < path.num_elements && dst_idx < dst_size - 1 && src[src_idx] != 0) {
|
|
if (src[src_idx] == '\\') {
|
|
dst[dst_idx] = '/';
|
|
} else {
|
|
dst[dst_idx] = src[src_idx];
|
|
}
|
|
|
|
src_idx++;
|
|
dst_idx++;
|
|
}
|
|
|
|
if (dst_idx < dst_size) {
|
|
dst[dst_idx] = 0;
|
|
}
|
|
}
|
|
|
|
Result DebugMonitorService::TargetIO_FileOpen(OutBuffer<u64> out_hnd, InBuffer<char> path, int open_mode, u32 create_mode) {
|
|
if (out_hnd.num_elements != 1) {
|
|
/* Serialization error. */
|
|
return ResultKernelConnectionClosed;
|
|
}
|
|
|
|
Result rc = EnsureSdInitialized();
|
|
if (R_FAILED(rc)) {
|
|
return rc;
|
|
}
|
|
|
|
char fs_path[FS_MAX_PATH];
|
|
FixPath(fs_path, sizeof(fs_path), path);
|
|
|
|
if (create_mode == TIOCreateOption_CreateAlways) {
|
|
fsFsDeleteFile(&g_sd_fs, fs_path);
|
|
rc = fsFsCreateFile(&g_sd_fs, fs_path, 0, 0);
|
|
} else if (create_mode == TIOCreateOption_CreateNew) {
|
|
rc = fsFsCreateFile(&g_sd_fs, fs_path, 0, 0);
|
|
}
|
|
|
|
if (R_FAILED(rc)) {
|
|
return rc;
|
|
}
|
|
|
|
FsFile f;
|
|
rc = fsFsOpenFile(&g_sd_fs, fs_path, open_mode, &f);
|
|
if (R_FAILED(rc)) {
|
|
if (create_mode == TIOCreateOption_OpenAlways) {
|
|
fsFsCreateFile(&g_sd_fs, fs_path, 0, 0);
|
|
rc = fsFsOpenFile(&g_sd_fs, fs_path, open_mode, &f);
|
|
}
|
|
}
|
|
|
|
if (R_SUCCEEDED(rc)) {
|
|
if (create_mode == TIOCreateOption_ResetSize) {
|
|
rc = fsFileSetSize(&f, 0);
|
|
}
|
|
if (R_SUCCEEDED(rc)) {
|
|
out_hnd[0] = GetFileHandle(f);
|
|
} else {
|
|
fsFileClose(&f);
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
Result DebugMonitorService::TargetIO_FileClose(InBuffer<u64> hnd) {
|
|
if (hnd.num_elements != 1) {
|
|
/* Serialization error. */
|
|
return ResultKernelConnectionClosed;
|
|
}
|
|
|
|
return CloseFileByHandle(hnd[0]);
|
|
}
|
|
|
|
Result DebugMonitorService::TargetIO_FileRead(InBuffer<u64> hnd, OutBuffer<u8, BufferType_Type1> out_data, Out<u32> out_read, u64 offset) {
|
|
if (hnd.num_elements != 1) {
|
|
/* Serialization error. */
|
|
return ResultKernelConnectionClosed;
|
|
}
|
|
|
|
FsFile f;
|
|
Result rc = GetFileByHandle(&f, hnd[0]);
|
|
if (R_FAILED(rc)) {
|
|
return rc;
|
|
}
|
|
|
|
size_t read = 0;
|
|
rc = fsFileRead(&f, offset, out_data.buffer, out_data.num_elements, &read);
|
|
out_read.SetValue(static_cast<u32>(read));
|
|
return rc;
|
|
}
|
|
|
|
Result DebugMonitorService::TargetIO_FileWrite(InBuffer<u64> hnd, InBuffer<u8, BufferType_Type1> data, Out<u32> out_written, u64 offset) {
|
|
if (hnd.num_elements != 1) {
|
|
/* Serialization error. */
|
|
return ResultKernelConnectionClosed;
|
|
}
|
|
|
|
FsFile f;
|
|
Result rc = GetFileByHandle(&f, hnd[0]);
|
|
if (R_FAILED(rc)) {
|
|
return rc;
|
|
}
|
|
|
|
rc = fsFileWrite(&f, offset, data.buffer, data.num_elements);
|
|
if (R_SUCCEEDED(rc)) {
|
|
out_written.SetValue(data.num_elements);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
Result DebugMonitorService::TargetIO_FileSetAttributes(InBuffer<char> path, InBuffer<u8> attributes) {
|
|
/* I don't really know why this command exists, Horizon doesn't allow you to set any attributes. */
|
|
/* N just returns ResultSuccess unconditionally here. */
|
|
return ResultSuccess;
|
|
}
|
|
|
|
Result DebugMonitorService::TargetIO_FileGetInformation(InBuffer<char> path, OutBuffer<u64> out_info, Out<int> is_directory) {
|
|
if (out_info.num_elements != 4) {
|
|
/* Serialization error. */
|
|
return ResultKernelConnectionClosed;
|
|
}
|
|
|
|
Result rc = EnsureSdInitialized();
|
|
if (R_FAILED(rc)) {
|
|
return rc;
|
|
}
|
|
|
|
char fs_path[FS_MAX_PATH];
|
|
FixPath(fs_path, sizeof(fs_path), path);
|
|
|
|
for (size_t i = 0; i < out_info.num_elements; i++) {
|
|
out_info[i] = 0;
|
|
}
|
|
is_directory.SetValue(0);
|
|
|
|
FsFile f;
|
|
rc = fsFsOpenFile(&g_sd_fs, fs_path, FS_OPEN_READ, &f);
|
|
if (R_SUCCEEDED(rc)) {
|
|
ON_SCOPE_EXIT { fsFileClose(&f); };
|
|
|
|
/* N doesn't check this return code. */
|
|
fsFileGetSize(&f, &out_info[0]);
|
|
|
|
/* TODO: N does not call fsFsGetFileTimestampRaw here, but we possibly could. */
|
|
} else {
|
|
FsDir dir;
|
|
rc = fsFsOpenDirectory(&g_sd_fs, fs_path, FS_DIROPEN_FILE | FS_DIROPEN_DIRECTORY, &dir);
|
|
if (R_SUCCEEDED(rc)) {
|
|
fsDirClose(&dir);
|
|
is_directory.SetValue(1);
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
Result DebugMonitorService::TargetIO_FileSetTime(InBuffer<char> path, u64 create, u64 access, u64 modify) {
|
|
/* This is another function that doesn't really need to exist, because Horizon doesn't let you set anything. */
|
|
return ResultSuccess;
|
|
}
|
|
|
|
Result DebugMonitorService::TargetIO_FileSetSize(InBuffer<char> input, u64 size) {
|
|
/* Why does this function take in a path and not a file handle? */
|
|
|
|
/* We will try to be better than N, here. N only treats input as a path. */
|
|
if (input.num_elements == sizeof(u64)) {
|
|
FsFile f;
|
|
if (R_SUCCEEDED(GetFileByHandle(&f, reinterpret_cast<u64 *>(input.buffer)[0]))) {
|
|
return fsFileSetSize(&f, size);
|
|
}
|
|
}
|
|
|
|
Result rc = EnsureSdInitialized();
|
|
if (R_FAILED(rc)) {
|
|
return rc;
|
|
}
|
|
|
|
char fs_path[FS_MAX_PATH];
|
|
FixPath(fs_path, sizeof(fs_path), input);
|
|
|
|
FsFile f;
|
|
rc = fsFsOpenFile(&g_sd_fs, fs_path, FS_OPEN_WRITE, &f);
|
|
if (R_SUCCEEDED(rc)) {
|
|
rc = fsFileSetSize(&f, size);
|
|
fsFileClose(&f);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
Result DebugMonitorService::TargetIO_FileDelete(InBuffer<char> path) {
|
|
Result rc = EnsureSdInitialized();
|
|
if (R_FAILED(rc)) {
|
|
return rc;
|
|
}
|
|
|
|
char fs_path[FS_MAX_PATH];
|
|
FixPath(fs_path, sizeof(fs_path), path);
|
|
|
|
return fsFsDeleteFile(&g_sd_fs, fs_path);
|
|
}
|
|
|
|
Result DebugMonitorService::TargetIO_FileMove(InBuffer<char> path0, InBuffer<char> path1) {
|
|
Result rc = EnsureSdInitialized();
|
|
if (R_FAILED(rc)) {
|
|
return rc;
|
|
}
|
|
|
|
char fs_path0[FS_MAX_PATH];
|
|
char fs_path1[FS_MAX_PATH];
|
|
FixPath(fs_path0, sizeof(fs_path0), path0);
|
|
FixPath(fs_path1, sizeof(fs_path1), path1);
|
|
|
|
return fsFsRenameFile(&g_sd_fs, fs_path0, fs_path1);
|
|
}
|