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sceKernelGetdents,sceKernelGetdirentries and some directory support

This commit is contained in:
georgemoralis 2024-06-09 20:43:21 +03:00
parent 4c0e24b076
commit b30bedd0ae
5 changed files with 124 additions and 16 deletions
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15
src/core/file_sys/fs.cpp
View File

@ -28,15 +28,13 @@ void MntPoints::UnmountAll() {
std::string MntPoints::GetHostDirectory(const std::string& guest_directory) {
std::scoped_lock lock{m_mutex};
for (auto& pair : m_mnt_pairs) {
if (pair.guest_path.starts_with(guest_directory)) {
return pair.host_path + guest_directory;
}
}
// hack for relative path , get app0 and assuming it goes from there
for (auto& pair : m_mnt_pairs) {
if (pair.guest_path.starts_with("/app0")) {
// horrible code but it works :D
int find = guest_directory.find(pair.guest_path);
if (find == 0) {
std::string npath =
guest_directory.substr(pair.guest_path.size(), guest_directory.size() - 1);
std::replace(pair.host_path.begin(), pair.host_path.end(), '\\', '/');
return pair.host_path + guest_directory;
return pair.host_path + npath;
}
}
return "";
@ -97,4 +95,5 @@ File* HandleTable::getFile(const std::string& host_name) {
}
return nullptr;
}
} // namespace Core::FileSys

7
src/core/file_sys/fs.h
View File

@ -32,13 +32,18 @@ private:
std::mutex m_mutex;
};
struct DirEntry {
std::string name;
bool isFile;
};
struct File {
std::atomic_bool is_opened{};
std::atomic_bool is_directory{};
std::string m_host_name;
std::string m_guest_name;
Common::FS::IOFile f;
// std::vector<Common::FS::DirEntry> dirents;
std::vector<DirEntry> dirents;
u32 dirents_index;
std::mutex m_mutex;
};

98
src/core/libraries/kernel/file_system.cpp
View File

@ -11,6 +11,29 @@
namespace Libraries::Kernel {
std::vector<Core::FileSys::DirEntry> GetDirectoryEntries(const std::string& path) {
std::string curpath = path;
if (!curpath.ends_with("/")) {
curpath = std::string(curpath + "/");
}
std::vector<Core::FileSys::DirEntry> files;
for (const auto& entry : std::filesystem::directory_iterator(curpath)) {
Core::FileSys::DirEntry e = {};
if (std::filesystem::is_regular_file(entry.path().string())) {
e.name = entry.path().filename().string();
e.isFile = true;
} else {
Core::FileSys::DirEntry e = {};
e.name = entry.path().filename().string() +
"/"; // hmmm not sure if it has to be like this...
e.isFile = false;
}
files.push_back(e);
}
return files;
}
int PS4_SYSV_ABI sceKernelOpen(const char* path, int flags, u16 mode) {
LOG_INFO(Kernel_Fs, "path = {} flags = {:#x} mode = {}", path, flags, mode);
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
@ -31,11 +54,23 @@ int PS4_SYSV_ABI sceKernelOpen(const char* path, int flags, u16 mode) {
bool direct = (flags & ORBIS_KERNEL_O_DIRECT) != 0;
bool directory = (flags & ORBIS_KERNEL_O_DIRECTORY) != 0;
if (directory) {
UNREACHABLE(); // not supported yet
} else {
u32 handle = h->CreateHandle();
auto* file = h->GetFile(handle);
if (directory) {
file->is_directory = true;
file->m_guest_name = path;
file->m_host_name = mnt->GetHostDirectory(file->m_guest_name);
if (!std::filesystem::is_directory(file->m_host_name)) { // directory doesn't exist
UNREACHABLE(); // not supported yet
} else {
if (create) {
return handle; // dir already exists
} else {
file->dirents = GetDirectoryEntries(file->m_host_name);
file->dirents_index = 0;
}
}
} else {
file->m_guest_name = path;
file->m_host_name = mnt->GetHostFile(file->m_guest_name);
if (read) {
@ -57,10 +92,62 @@ int PS4_SYSV_ABI sceKernelOpen(const char* path, int flags, u16 mode) {
h->DeleteHandle(handle);
return SCE_KERNEL_ERROR_EACCES;
}
}
file->is_opened = true;
return handle;
}
int PS4_SYSV_ABI sceKernelGetdents(int fd, char* buf, int nbytes) {
// TODO error codes
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(fd);
if (file->dirents_index == file->dirents.size()) {
return 0;
}
return -1; // dummy
const auto& entry = file->dirents.at(file->dirents_index++);
auto str = entry.name;
auto str_size = str.size() - 1;
static int fileno = 1000; // random
OrbisKernelDirent* sce_ent = (OrbisKernelDirent*)buf;
sce_ent->d_fileno = fileno++; // TODO this should be unique but atm it changes maybe switch to a
// hash or something?
sce_ent->d_reclen = sizeof(OrbisKernelDirent);
sce_ent->d_type = (entry.isFile ? 8 : 4);
sce_ent->d_namlen = str_size;
strncpy(sce_ent->d_name, str.c_str(), ORBIS_MAX_PATH);
sce_ent->d_name[ORBIS_MAX_PATH] = '\0';
return sizeof(OrbisKernelDirent);
}
int PS4_SYSV_ABI sceKernelGetdirentries(int fd, char* buf, int nbytes, s64* basep) {
// TODO error codes
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(fd);
if (basep != nullptr) {
*basep = file->dirents_index;
}
if (file->dirents_index == file->dirents.size()) {
return 0;
}
const auto& entry = file->dirents.at(file->dirents_index++);
auto str = entry.name;
auto str_size = str.size() - 1;
static int fileno = 1000; // random
OrbisKernelDirent* sce_ent = (OrbisKernelDirent*)buf;
sce_ent->d_fileno = fileno++; // TODO this should be unique but atm it changes maybe switch to a
// hash or something?
sce_ent->d_reclen = sizeof(OrbisKernelDirent);
sce_ent->d_type = (entry.isFile ? 8 : 4);
sce_ent->d_namlen = str_size;
strncpy(sce_ent->d_name, str.c_str(), ORBIS_MAX_PATH);
sce_ent->d_name[ORBIS_MAX_PATH] = '\0';
return sizeof(OrbisKernelDirent);
}
int PS4_SYSV_ABI posix_open(const char* path, int flags, /* SceKernelMode*/ u16 mode) {
@ -277,6 +364,9 @@ void fileSystemSymbolsRegister(Core::Loader::SymbolsResolver* sym) {
LIB_FUNCTION("1-LFLmRFxxM", "libkernel", 1, "libkernel", 1, 1, sceKernelMkdir);
LIB_FUNCTION("eV9wAD2riIA", "libkernel", 1, "libkernel", 1, 1, sceKernelStat);
LIB_FUNCTION("kBwCPsYX-m4", "libkernel", 1, "libkernel", 1, 1, sceKernelFStat);
LIB_FUNCTION("j2AIqSqJP0w", "libkernel", 1, "libkernel", 1, 1, sceKernelGetdents);
LIB_FUNCTION("taRWhTJFTgE", "libkernel", 1, "libkernel", 1, 1, sceKernelGetdirentries);
LIB_FUNCTION("E6ao34wPw+U", "libScePosix", 1, "libkernel", 1, 1, posix_stat);
LIB_FUNCTION("+r3rMFwItV4", "libkernel", 1, "libkernel", 1, 1, sceKernelPread);

10
src/core/libraries/kernel/file_system.h
View File

@ -12,6 +12,8 @@ class SymbolsResolver;
namespace Libraries::Kernel {
constexpr int ORBIS_MAX_PATH = 255;
struct SceKernelIovec {
void* iov_base;
std::size_t iov_len;
@ -39,6 +41,14 @@ struct OrbisKernelStat {
unsigned int : (8 / 2) * (16 - static_cast<int>(sizeof(SceKernelTimespec)));
};
struct OrbisKernelDirent {
u32 d_fileno; /* file number of entry */
u16 d_reclen; /* length of this record */
u8 d_type; /* file type, see below */
u8 d_namlen; /* length of string in d_name */
char d_name[ORBIS_MAX_PATH + 1]; /* name must be no longer than this */
};
// flags for Open
constexpr int ORBIS_KERNEL_O_RDONLY = 0x0000;
constexpr int ORBIS_KERNEL_O_WRONLY = 0x0001;

6
src/core/libraries/pad/pad.cpp
View File

@ -113,12 +113,16 @@ s32 PS4_SYSV_ABI scePadSetMotionSensorState(s32 handle, bool enable) {
return SCE_OK;
}
int PS4_SYSV_ABI scePadGetHandle(s32 userId, int32_t type, int32_t index) {
return 1;
}
void padSymbolsRegister(Core::Loader::SymbolsResolver* sym) {
LIB_FUNCTION("hv1luiJrqQM", "libScePad", 1, "libScePad", 1, 1, scePadInit);
LIB_FUNCTION("xk0AcarP3V4", "libScePad", 1, "libScePad", 1, 1, scePadOpen);
LIB_FUNCTION("YndgXqQVV7c", "libScePad", 1, "libScePad", 1, 1, scePadReadState);
LIB_FUNCTION("q1cHNfGycLI", "libScePad", 1, "libScePad", 1, 1, scePadRead);
LIB_FUNCTION("u1GRHp+oWoY", "libScePad", 1, "libScePad", 1, 1, scePadGetHandle);
LIB_FUNCTION("gjP9-KQzoUk", "libScePad", 1, "libScePad", 1, 1, scePadGetControllerInformation);
LIB_FUNCTION("clVvL4ZDntw", "libScePad", 1, "libScePad", 1, 1, scePadSetMotionSensorState);
}