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[FS] Start implementing CreateFile

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wheremyfoodat 2023-01-22 14:53:23 +02:00
parent ee11a9e7c6
commit 93d2d300b9
3 changed files with 33 additions and 2 deletions
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1
include/services/fs.hpp
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@ -30,6 +30,7 @@ class FSService {
FSPath readPath(u32 type, u32 pointer, u32 size);
// Service commands
void createFile(u32 messagePointer);
void closeArchive(u32 messagePointer);
void getPriority(u32 messagePointer);
void initialize(u32 messagePointer);

4
src/core/fs/archive_ext_save_data.cpp
View file

@ -9,13 +9,13 @@ FileDescriptor ExtSaveDataArchive::openFile(const FSPath& path, const FilePerms&
Helpers::panic("Unsafe path in ExtSaveData::OpenFile");
if (perms.create())
Helpers::panic("[ExtSaveData] CAn't open file with create flag");
Helpers::panic("[ExtSaveData] Can't open file with create flag");
fs::path p = IOFile::getAppData() / "NAND";
p += fs::path(path.utf16_string).make_preferred();
if (fs::exists(p)) { // Return file descriptor if the file exists
IOFile file(p.string().c_str(), "r+b"); // According to Citra, this ignores the OpenFile flags and always opens as r+b? TODO: Check
IOFile file(p.string().c_str(), "r+b"); // According to Citra, this ignores the OpenFlags field and always opens as r+b? TODO: Check
return file.isOpen() ? file.getHandle() : FileError;
} else {
return FileError;

30
src/core/services/fs.cpp
View file

@ -1,11 +1,16 @@
#include "services/fs.hpp"
#include "kernel/kernel.hpp"
#ifdef CreateFile // windows.h defines this because of course it does.
#undef CreateFile
#endif
namespace FSCommands {
enum : u32 {
Initialize = 0x08010002,
OpenFile = 0x080201C2,
OpenFileDirectly = 0x08030204,
CreateFile = 0x08080202,
OpenArchive = 0x080C00C2,
CloseArchive = 0x080E0080,
IsSdmcDetected = 0x08170000,
@ -87,6 +92,7 @@ FSPath FSService::readPath(u32 type, u32 pointer, u32 size) {
void FSService::handleSyncRequest(u32 messagePointer) {
const u32 command = mem.read32(messagePointer);
switch (command) {
case FSCommands::CreateFile: createFile(messagePointer); break;
case FSCommands::CloseArchive: closeArchive(messagePointer); break;
case FSCommands::GetPriority: getPriority(messagePointer); break;
case FSCommands::Initialize: initialize(messagePointer); break;
@ -214,6 +220,30 @@ void FSService::openFileDirectly(u32 messagePointer) {
}
}
void FSService::createFile(u32 messagePointer) {
const u32 archiveHandle = mem.read64(messagePointer + 8);
const u32 filePathType = mem.read32(messagePointer + 16);
const u32 filePathSize = mem.read32(messagePointer + 20);
const u32 attributes = mem.read32(messagePointer + 24);
const u64 bytesToZero = mem.read64(messagePointer + 28); // Bytes to fill with zeroes in the file
const u32 filePathPointer = mem.read32(messagePointer + 40);
log("FS::CreateFile\n");
auto archiveObject = kernel.getObject(archiveHandle, KernelObjectType::Archive);
if (archiveObject == nullptr) [[unlikely]] {
log("FS::OpenFile: Invalid archive handle %d\n", archiveHandle);
mem.write32(messagePointer + 4, Result::Failure);
return;
}
ArchiveBase* archive = archiveObject->getData<ArchiveSession>()->archive;
auto filePath = readPath(filePathType, filePathPointer, filePathSize);
for (auto c : filePath.utf16_string) std::cout << (char)c;
Helpers::panic("Tried to create file");
}
void FSService::getPriority(u32 messagePointer) {
log("FS::GetPriority\n");