1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2024-12-13 14:02:07 +00:00
Atmosphere/stratosphere/ams_mitm/source/amsmitm_fs_utils.cpp

262 lines
10 KiB
C++
Raw Normal View History

2019-11-21 09:48:47 +00:00
/*
* Copyright (c) Atmosphère-NX
2019-11-21 09:48:47 +00:00
*
* 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 <stratosphere.hpp>
#include "amsmitm_initialization.hpp"
#include "amsmitm_fs_utils.hpp"
namespace ams::mitm::fs {
2019-12-04 14:53:52 +00:00
using namespace ams::fs;
2019-11-21 09:48:47 +00:00
namespace {
/* Globals. */
FsFileSystem g_sd_filesystem;
/* Helpers. */
Result EnsureSdInitialized() {
R_UNLESS(serviceIsActive(std::addressof(g_sd_filesystem.s)), ams::fs::ResultSdCardNotPresent());
2022-03-26 07:14:36 +00:00
R_SUCCEED();
2019-11-21 09:48:47 +00:00
}
2019-12-04 14:53:52 +00:00
void FormatAtmosphereRomfsPath(char *dst_path, size_t dst_path_size, ncm::ProgramId program_id, const char *src_path) {
return FormatAtmosphereSdPath(dst_path, dst_path_size, program_id, "romfs", src_path);
}
2019-11-21 09:48:47 +00:00
}
void OpenGlobalSdCardFileSystem() {
R_ABORT_UNLESS(fsOpenSdCardFileSystem(std::addressof(g_sd_filesystem)));
2019-11-21 09:48:47 +00:00
}
Result CreateSdFile(const char *path, s64 size, s32 option) {
R_TRY(EnsureSdInitialized());
R_RETURN(fsFsCreateFile(std::addressof(g_sd_filesystem), path, size, option));
}
Result DeleteSdFile(const char *path) {
R_TRY(EnsureSdInitialized());
R_RETURN(fsFsDeleteFile(std::addressof(g_sd_filesystem), path));
}
bool HasSdFile(const char *path) {
if (R_FAILED(EnsureSdInitialized())) {
return false;
}
FsDirEntryType type;
if (R_FAILED(fsFsGetEntryType(std::addressof(g_sd_filesystem), path, std::addressof(type)))) {
return false;
}
return type == FsDirEntryType_File;
}
bool HasAtmosphereSdFile(const char *path) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), path);
return HasSdFile(fixed_path);
}
Result DeleteAtmosphereSdFile(const char *path) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), path);
R_RETURN(DeleteSdFile(fixed_path));
}
Result CreateAtmosphereSdFile(const char *path, s64 size, s32 option) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), path);
R_RETURN(CreateSdFile(fixed_path, size, option));
}
2019-11-21 09:48:47 +00:00
Result OpenSdFile(FsFile *out, const char *path, u32 mode) {
R_TRY(EnsureSdInitialized());
R_RETURN(fsFsOpenFile(std::addressof(g_sd_filesystem), path, mode, out));
2019-11-21 09:48:47 +00:00
}
Result OpenAtmosphereSdFile(FsFile *out, const char *path, u32 mode) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
2019-11-21 09:48:47 +00:00
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), path);
R_RETURN(OpenSdFile(out, fixed_path, mode));
2019-11-21 09:48:47 +00:00
}
Result OpenAtmosphereSdFile(FsFile *out, ncm::ProgramId program_id, const char *path, u32 mode) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
2019-11-21 09:48:47 +00:00
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), program_id, path);
R_RETURN(OpenSdFile(out, fixed_path, mode));
2019-11-21 09:48:47 +00:00
}
2019-12-04 14:53:52 +00:00
Result OpenAtmosphereSdRomfsFile(FsFile *out, ncm::ProgramId program_id, const char *path, u32 mode) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
2019-12-04 14:53:52 +00:00
FormatAtmosphereRomfsPath(fixed_path, sizeof(fixed_path), program_id, path);
R_RETURN(OpenSdFile(out, fixed_path, mode));
2019-12-04 14:53:52 +00:00
}
Result OpenAtmosphereRomfsFile(FsFile *out, ncm::ProgramId program_id, const char *path, u32 mode, FsFileSystem *fs) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
2019-12-04 14:53:52 +00:00
FormatAtmosphereRomfsPath(fixed_path, sizeof(fixed_path), program_id, path);
R_RETURN(fsFsOpenFile(fs, fixed_path, mode, out));
2019-12-04 14:53:52 +00:00
}
Result CreateSdDirectory(const char *path) {
R_TRY(EnsureSdInitialized());
R_RETURN(fsFsCreateDirectory(std::addressof(g_sd_filesystem), path));
}
Result CreateAtmosphereSdDirectory(const char *path) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), path);
R_RETURN(CreateSdDirectory(fixed_path));
}
2019-12-04 14:53:52 +00:00
Result OpenSdDirectory(FsDir *out, const char *path, u32 mode) {
R_TRY(EnsureSdInitialized());
R_RETURN(fsFsOpenDirectory(std::addressof(g_sd_filesystem), path, mode, out));
2019-12-04 14:53:52 +00:00
}
Result OpenAtmosphereSdDirectory(FsDir *out, const char *path, u32 mode) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
2019-12-04 14:53:52 +00:00
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), path);
R_RETURN(OpenSdDirectory(out, fixed_path, mode));
2019-12-04 14:53:52 +00:00
}
Result OpenAtmosphereSdDirectory(FsDir *out, ncm::ProgramId program_id, const char *path, u32 mode) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
2019-12-04 14:53:52 +00:00
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), program_id, path);
R_RETURN(OpenSdDirectory(out, fixed_path, mode));
2019-12-04 14:53:52 +00:00
}
Result OpenAtmosphereSdRomfsDirectory(FsDir *out, ncm::ProgramId program_id, const char *path, u32 mode) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
2019-12-04 14:53:52 +00:00
FormatAtmosphereRomfsPath(fixed_path, sizeof(fixed_path), program_id, path);
R_RETURN(OpenSdDirectory(out, fixed_path, mode));
2019-12-04 14:53:52 +00:00
}
Result OpenAtmosphereRomfsDirectory(FsDir *out, ncm::ProgramId program_id, const char *path, u32 mode, FsFileSystem *fs) {
char fixed_path[ams::fs::EntryNameLengthMax + 1];
2019-12-04 14:53:52 +00:00
FormatAtmosphereRomfsPath(fixed_path, sizeof(fixed_path), program_id, path);
R_RETURN(fsFsOpenDirectory(fs, fixed_path, mode, out));
2019-12-04 14:53:52 +00:00
}
void FormatAtmosphereSdPath(char *dst_path, size_t dst_path_size, const char *src_path) {
if (src_path[0] == '/') {
util::SNPrintf(dst_path, dst_path_size, "/atmosphere%s", src_path);
} else {
util::SNPrintf(dst_path, dst_path_size, "/atmosphere/%s", src_path);
}
}
void FormatAtmosphereSdPath(char *dst_path, size_t dst_path_size, const char *subdir, const char *src_path) {
if (src_path[0] == '/') {
util::SNPrintf(dst_path, dst_path_size, "/atmosphere/%s%s", subdir, src_path);
} else {
util::SNPrintf(dst_path, dst_path_size, "/atmosphere/%s/%s", subdir, src_path);
}
}
void FormatAtmosphereSdPath(char *dst_path, size_t dst_path_size, ncm::ProgramId program_id, const char *src_path) {
if (src_path[0] == '/') {
util::SNPrintf(dst_path, dst_path_size, "/atmosphere/contents/%016lx%s", static_cast<u64>(program_id), src_path);
} else {
util::SNPrintf(dst_path, dst_path_size, "/atmosphere/contents/%016lx/%s", static_cast<u64>(program_id), src_path);
}
}
void FormatAtmosphereSdPath(char *dst_path, size_t dst_path_size, ncm::ProgramId program_id, const char *subdir, const char *src_path) {
if (src_path[0] == '/') {
util::SNPrintf(dst_path, dst_path_size, "/atmosphere/contents/%016lx/%s%s", static_cast<u64>(program_id), subdir, src_path);
} else {
util::SNPrintf(dst_path, dst_path_size, "/atmosphere/contents/%016lx/%s/%s", static_cast<u64>(program_id), subdir, src_path);
}
}
2019-12-04 14:53:52 +00:00
bool HasSdRomfsContent(ncm::ProgramId program_id) {
/* Check if romfs.bin is present. */
{
FsFile romfs_file;
if (R_SUCCEEDED(OpenAtmosphereSdFile(std::addressof(romfs_file), program_id, "romfs.bin", OpenMode_Read))) {
fsFileClose(std::addressof(romfs_file));
2019-12-04 14:53:52 +00:00
return true;
}
}
/* Check for romfs folder with content. */
FsDir romfs_dir;
if (R_FAILED(OpenAtmosphereSdRomfsDirectory(std::addressof(romfs_dir), program_id, "", fs::OpenDirectoryMode_All))) {
2019-12-04 14:53:52 +00:00
return false;
}
ON_SCOPE_EXIT { fsDirClose(std::addressof(romfs_dir)); };
2019-12-04 14:53:52 +00:00
/* Verify the folder has at least one entry. */
s64 num_entries = 0;
return R_SUCCEEDED(fsDirGetEntryCount(std::addressof(romfs_dir), std::addressof(num_entries))) && num_entries > 0;
2019-12-04 14:53:52 +00:00
}
Result SaveAtmosphereSdFile(FsFile *out, ncm::ProgramId program_id, const char *path, void *data, size_t size) {
R_TRY(EnsureSdInitialized());
char fixed_path[ams::fs::EntryNameLengthMax + 1];
2019-12-04 14:53:52 +00:00
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), program_id, path);
/* Unconditionally create. */
/* Don't check error, as a failure here should be okay. */
FsFile f;
fsFsCreateFile(std::addressof(g_sd_filesystem), fixed_path, size, 0);
2019-12-04 14:53:52 +00:00
/* Try to open. */
R_TRY(fsFsOpenFile(std::addressof(g_sd_filesystem), fixed_path, OpenMode_ReadWrite, std::addressof(f)));
auto file_guard = SCOPE_GUARD { fsFileClose(std::addressof(f)); };
2019-12-04 14:53:52 +00:00
/* Try to set the size. */
R_TRY(fsFileSetSize(std::addressof(f), static_cast<s64>(size)));
2019-12-04 14:53:52 +00:00
/* Try to write data. */
R_TRY(fsFileWrite(std::addressof(f), 0, data, size, FsWriteOption_Flush));
2019-12-04 14:53:52 +00:00
/* Set output. */
file_guard.Cancel();
*out = f;
2022-03-26 07:14:36 +00:00
R_SUCCEED();
2019-12-04 14:53:52 +00:00
}
Result CreateAndOpenAtmosphereSdFile(FsFile *out, ncm::ProgramId program_id, const char *path, size_t size) {
R_TRY(EnsureSdInitialized());
char fixed_path[ams::fs::EntryNameLengthMax + 1];
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), program_id, path);
/* Unconditionally create. */
/* Don't check error, as a failure here should be okay. */
FsFile f;
fsFsCreateFile(std::addressof(g_sd_filesystem), fixed_path, size, 0);
/* Try to open. */
R_TRY(fsFsOpenFile(std::addressof(g_sd_filesystem), fixed_path, OpenMode_ReadWrite, std::addressof(f)));
auto file_guard = SCOPE_GUARD { fsFileClose(std::addressof(f)); };
/* Try to set the size. */
R_TRY(fsFileSetSize(std::addressof(f), static_cast<s64>(size)));
/* Set output. */
file_guard.Cancel();
*out = f;
2022-03-26 07:14:36 +00:00
R_SUCCEED();
}
2019-11-21 09:48:47 +00:00
}