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rpcsx/kernel/cellos/src/sys_fs.cpp

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Move rpcs3/Emu/Cell/lv2 to kernel/cellos
2025-10-04 15:46:36 +02:00
#include "stdafx.h"
#include "sys_fs.h"
#include "sys_memory.h"
#include "sys_sync.h"
#include "util/asm.hpp"
#include "Crypto/unedat.h"
#include "Emu/Cell/PPUThread.h"
#include "Emu/IdManager.h"
#include "Emu/System.h"
#include "Emu/VFS.h"
#include "Emu/system_config.h"
#include "Emu/system_utils.hpp"
#include "Emu/vfs_config.h"
#include "cellos/sys_process.h"
#include <filesystem>
#include <shared_mutex>
#include <span>
LOG_CHANNEL(sys_fs);
// clang-format off
lv2_fs_mount_point g_mp_sys_dev_usb{"/dev_usb", "CELL_FS_FAT", "CELL_FS_IOS:USB_MASS_STORAGE", 512, 0x100, 4096, lv2_mp_flag::no_uid_gid};
lv2_fs_mount_point g_mp_sys_dev_dvd{"/dev_ps2disc", "CELL_FS_ISO9660", "CELL_FS_IOS:PATA1_BDVD_DRIVE", 2048, 0x100, 32768, lv2_mp_flag::read_only + lv2_mp_flag::no_uid_gid, &g_mp_sys_dev_usb};
lv2_fs_mount_point g_mp_sys_dev_bdvd{"/dev_bdvd", "CELL_FS_ISO9660", "CELL_FS_IOS:PATA0_BDVD_DRIVE", 2048, 0x4D955, 2048, lv2_mp_flag::read_only + lv2_mp_flag::no_uid_gid, &g_mp_sys_dev_dvd};
lv2_fs_mount_point g_mp_sys_dev_hdd1{"/dev_hdd1", "CELL_FS_FAT", "CELL_FS_UTILITY:HDD1", 512, 0x3FFFF8, 32768, lv2_mp_flag::no_uid_gid + lv2_mp_flag::cache, &g_mp_sys_dev_bdvd};
lv2_fs_mount_point g_mp_sys_dev_hdd0{"/dev_hdd0", "CELL_FS_UFS", "CELL_FS_UTILITY:HDD0", 512, 0x24FAEA98, 4096, {}, &g_mp_sys_dev_hdd1};
lv2_fs_mount_point g_mp_sys_dev_flash3{"/dev_flash3", "CELL_FS_FAT", "CELL_FS_IOS:BUILTIN_FLSH3", 512, 0x400, 8192, lv2_mp_flag::no_uid_gid, &g_mp_sys_dev_hdd0}; // TODO confirm
lv2_fs_mount_point g_mp_sys_dev_flash2{"/dev_flash2", "CELL_FS_FAT", "CELL_FS_IOS:BUILTIN_FLSH2", 512, 0x8000, 8192, lv2_mp_flag::no_uid_gid, &g_mp_sys_dev_flash3}; // TODO confirm
lv2_fs_mount_point g_mp_sys_dev_flash{"/dev_flash", "CELL_FS_FAT", "CELL_FS_IOS:BUILTIN_FLSH1", 512, 0x63E00, 8192, lv2_mp_flag::no_uid_gid, &g_mp_sys_dev_flash2};
lv2_fs_mount_point g_mp_sys_host_root{"/host_root", "CELL_FS_DUMMYFS", "CELL_FS_DUMMY:/", 512, 0x100, 512, lv2_mp_flag::strict_get_block_size + lv2_mp_flag::no_uid_gid, &g_mp_sys_dev_flash};
lv2_fs_mount_point g_mp_sys_app_home{"/app_home", "CELL_FS_DUMMYFS", "CELL_FS_DUMMY:", 512, 0x100, 512, lv2_mp_flag::strict_get_block_size + lv2_mp_flag::no_uid_gid, &g_mp_sys_host_root};
lv2_fs_mount_point g_mp_sys_dev_root{"/", "CELL_FS_ADMINFS", "CELL_FS_ADMINFS:", 512, 0x100, 512, lv2_mp_flag::read_only + lv2_mp_flag::strict_get_block_size + lv2_mp_flag::no_uid_gid, &g_mp_sys_app_home};
lv2_fs_mount_point g_mp_sys_no_device{};
lv2_fs_mount_info g_mi_sys_not_found{}; // wrapper for &g_mp_sys_no_device
// clang-format on
template <>
void fmt_class_string<lv2_file_type>::format(std::string &out, u64 arg) {
format_enum(out, arg, [](lv2_file_type type) {
switch (type) {
case lv2_file_type::regular:
return "Regular file";
case lv2_file_type::sdata:
return "SDATA";
case lv2_file_type::edata:
return "EDATA";
}
return unknown;
});
}
template <> void fmt_class_string<lv2_file>::format(std::string &out, u64 arg) {
const auto &file = get_object(arg);
auto get_size = [](u64 size) -> std::string {
if (size == umax) {
return "N/A";
}
std::string size_str;
switch (std::bit_width(size) / 10 * 10) {
case 0:
fmt::append(size_str, "%u", size);
break;
case 10:
fmt::append(size_str, "%gKB", size / 1024.);
break;
case 20:
fmt::append(size_str, "%gMB", size / (1024. * 1024));
break;
default:
case 30:
fmt::append(size_str, "%gGB", size / (1024. * 1024 * 1024));
break;
}
return size_str;
};
const usz pos = file.file ? file.file.pos() : umax;
const usz size = file.file ? file.file.size() : umax;
fmt::append(
out, u8"%s, '%s', Mode: 0x%x, Flags: 0x%x, Pos/Size: %s/%s (0x%x/0x%x)",
file.type, file.name.data(), file.mode, file.flags, get_size(pos),
get_size(size), pos, size);
}
template <> void fmt_class_string<lv2_dir>::format(std::string &out, u64 arg) {
const auto &dir = get_object(arg);
fmt::append(out, u8"Directory, '%s', Entries: %u/%u", dir.name.data(),
std::min<u64>(dir.pos, dir.entries.size()), dir.entries.size());
}
bool has_fs_write_rights(std::string_view vpath) {
// VSH has access to everything
if (g_ps3_process_info.has_root_perm())
return true;
const auto norm_vpath = lv2_fs_object::get_normalized_path(vpath);
const auto parent_dir = fs::get_parent_dir_view(norm_vpath);
// This is not exhaustive, PS3 has a unix filesystem with rights for each
// directory and files This is mostly meant to protect against games doing
// insane things(ie NPUB30003 => NPUB30008)
if (parent_dir == "/dev_hdd0" || parent_dir == "/dev_hdd0/game")
return false;
return true;
}
bool verify_mself(const fs::file &mself_file) {
FsMselfHeader mself_header;
if (!mself_file.read<FsMselfHeader>(mself_header)) {
sys_fs.error("verify_mself: Didn't read expected bytes for header.");
return false;
}
if (mself_header.m_magic != 0x4D534600u) {
sys_fs.error("verify_mself: Header magic is incorrect.");
return false;
}
if (mself_header.m_format_version != 1u) {
sys_fs.error("verify_mself: Unexpected header format version.");
return false;
}
// sanity check
if (mself_header.m_entry_size != sizeof(FsMselfEntry)) {
sys_fs.error("verify_mself: Unexpected header entry size.");
return false;
}
mself_file.seek(0);
return true;
}
lv2_fs_mount_info_map::lv2_fs_mount_info_map() {
for (auto mp = &g_mp_sys_dev_root; mp;
mp = mp->next) // Scan and keep track of pre-mounted devices
{
if (mp == &g_mp_sys_dev_usb) {
for (int i = 0; i < 8; i++) {
if (!vfs::get(fmt::format("%s%03d", mp->root, i)).empty()) {
add(fmt::format("%s%03d", mp->root, i), mp,
fmt::format("%s%03d", mp->device, i), mp->file_system, false);
}
}
} else if (mp == &g_mp_sys_dev_root || !vfs::get(mp->root).empty()) {
add(std::string(mp->root), mp, mp->device, mp->file_system,
mp == &g_mp_sys_dev_flash); // /dev_flash is mounted in read only mode
// initially
}
}
}
lv2_fs_mount_info_map::~lv2_fs_mount_info_map() {
for (const auto &[path, info] : map)
vfs_unmount(
path,
false); // Do not remove the value from the map we are iterating over.
}
bool lv2_fs_mount_info_map::remove(std::string_view path) {
if (const auto iterator = map.find(path); iterator != map.end()) {
map.erase(iterator);
return true;
}
return false;
}
const lv2_fs_mount_info &
lv2_fs_mount_info_map::lookup(std::string_view path, bool no_cell_fs_path,
std::string *mount_path) const {
if (path.starts_with("/"sv)) {
constexpr std::string_view cell_fs_path = "CELL_FS_PATH:"sv;
const std::string normalized_path =
lv2_fs_object::get_normalized_path(path);
std::string_view parent_dir;
u32 parent_level = 0;
do {
parent_dir = fs::get_parent_dir_view(normalized_path, parent_level++);
if (const auto iterator = map.find(parent_dir); iterator != map.end()) {
if (iterator->second == &g_mp_sys_dev_root && parent_level > 1)
break;
if (no_cell_fs_path &&
iterator->second.device.starts_with(cell_fs_path))
return lookup(
iterator->second.device.substr(cell_fs_path.size()),
no_cell_fs_path,
mount_path); // Recursively look up the parent mount info
if (mount_path)
*mount_path = iterator->first;
return iterator->second;
}
} while (parent_dir.length() >
1); // Exit the loop when parent_dir == "/" or empty
}
return g_mi_sys_not_found;
}
u64 lv2_fs_mount_info_map::get_all(CellFsMountInfo *info, u64 len) const {
if (!info)
return map.size();
u64 count = 0;
for (const auto &[path, mount_info] : map) {
if (count >= len)
break;
strcpy_trunc(info[count].mount_path, path);
strcpy_trunc(info[count].filesystem, mount_info.file_system);
strcpy_trunc(info[count].dev_name, mount_info.device);
if (mount_info.read_only)
info[count].unk[4] |= 0x10000000;
count++;
}
return count;
}
bool lv2_fs_mount_info_map::is_device_mounted(
std::string_view device_name) const {
return std::any_of(map.begin(), map.end(),
[&](const decltype(map)::value_type &info) {
return info.second.device == device_name;
});
}
bool lv2_fs_mount_info_map::vfs_unmount(std::string_view vpath,
bool remove_from_map) {
const std::string local_path = vfs::get(vpath);
if (local_path.empty())
return false;
if (fs::is_file(local_path)) {
if (fs::remove_file(local_path)) {
sys_fs.notice("Removed simplefs file \"%s\"", local_path);
} else {
sys_fs.error("Failed to remove simplefs file \"%s\"", local_path);
}
}
const bool result = vfs::unmount(vpath);
if (result && remove_from_map)
g_fxo->get<lv2_fs_mount_info_map>().remove(vpath);
return result;
}
std::string lv2_fs_object::get_normalized_path(std::string_view path) {
std::string normalized_path =
std::filesystem::path(path).lexically_normal().string();
#ifdef _WIN32
std::replace(normalized_path.begin(), normalized_path.end(), '\\', '/');
#endif
if (normalized_path.ends_with('/'))
normalized_path.pop_back();
return normalized_path.empty() ? "/" : normalized_path;
}
std::string lv2_fs_object::get_device_root(std::string_view filename) {
std::string path =
get_normalized_path(filename); // Prevent getting fooled by ".." trick
// such as "/dev_usb000/../dev_flash"
if (const auto first = path.find_first_not_of("/"sv); first != umax) {
if (const auto pos = path.substr(first).find_first_of("/"sv); pos != umax)
path = path.substr(0, first + pos);
path = path.substr(std::max<std::make_signed_t<usz>>(
0, first - 1)); // Remove duplicate leading '/' while keeping only one
} else {
path = path.substr(0, 1);
}
return path;
}
lv2_fs_mount_point *lv2_fs_object::get_mp(std::string_view filename,
std::string *vfs_path) {
constexpr std::string_view cell_fs_path = "CELL_FS_PATH:"sv;
const bool is_cell_fs_path = filename.starts_with(cell_fs_path);
if (is_cell_fs_path)
filename.remove_prefix(cell_fs_path.size());
const bool is_path = filename.starts_with("/"sv);
std::string mp_name =
is_path ? get_device_root(filename) : std::string(filename);
const auto check_mp = [&]() {
for (auto mp = &g_mp_sys_dev_root; mp; mp = mp->next) {
const auto &device_alias_check =
!is_path &&
((mp == &g_mp_sys_dev_hdd0 &&
mp_name == "CELL_FS_IOS:PATA0_HDD_DRIVE"sv) ||
(mp == &g_mp_sys_dev_hdd1 &&
mp_name == "CELL_FS_IOS:PATA1_HDD_DRIVE"sv) ||
(mp == &g_mp_sys_dev_flash2 &&
mp_name == "CELL_FS_IOS:BUILTIN_FLASH"sv)); // TODO confirm
if (mp == &g_mp_sys_dev_usb) {
if (mp_name.starts_with(is_path ? mp->root : mp->device)) {
if (!is_path)
mp_name = fmt::format("%s%s", mp->root,
mp_name.substr(mp->device.size()));
return mp;
}
} else if ((is_path ? mp->root : mp->device) == mp_name ||
device_alias_check) {
if (!is_path)
mp_name = mp->root;
return mp;
}
}
return &g_mp_sys_no_device; // Default fallback
};
const auto result = check_mp();
if (vfs_path) {
if (is_cell_fs_path)
*vfs_path = vfs::get(filename);
else if (result == &g_mp_sys_dev_hdd0)
*vfs_path =
g_cfg_vfs.get(g_cfg_vfs.dev_hdd0, rpcs3::utils::get_emu_dir());
else if (result == &g_mp_sys_dev_hdd1)
*vfs_path =
g_cfg_vfs.get(g_cfg_vfs.dev_hdd1, rpcs3::utils::get_emu_dir());
else if (result == &g_mp_sys_dev_usb)
*vfs_path = g_cfg_vfs
.get_device(g_cfg_vfs.dev_usb, mp_name,
rpcs3::utils::get_emu_dir())
.path;
else if (result == &g_mp_sys_dev_bdvd)
*vfs_path =
g_cfg_vfs.get(g_cfg_vfs.dev_bdvd, rpcs3::utils::get_emu_dir());
else if (result == &g_mp_sys_dev_dvd)
*vfs_path = g_cfg_vfs.get(
g_cfg_vfs.dev_bdvd, rpcs3::utils::get_emu_dir()); // For compatibility
else if (result == &g_mp_sys_app_home)
*vfs_path =
g_cfg_vfs.get(g_cfg_vfs.app_home, rpcs3::utils::get_emu_dir());
else if (result == &g_mp_sys_host_root && g_cfg.vfs.host_root)
*vfs_path = "/";
else if (result == &g_mp_sys_dev_flash)
*vfs_path = g_cfg_vfs.get_dev_flash();
else if (result == &g_mp_sys_dev_flash2)
*vfs_path = g_cfg_vfs.get_dev_flash2();
else if (result == &g_mp_sys_dev_flash3)
*vfs_path = g_cfg_vfs.get_dev_flash3();
else
*vfs_path = {};
if (is_path && !is_cell_fs_path && !vfs_path->empty())
vfs_path->append(filename.substr(mp_name.size()));
}
return result;
}
lv2_fs_object::lv2_fs_object(std::string_view filename)
: name(get_name(filename)),
mp(g_fxo->get<lv2_fs_mount_info_map>().lookup(name.data())) {}
lv2_fs_object::lv2_fs_object(utils::serial &ar, bool)
: name(ar), mp(g_fxo->get<lv2_fs_mount_info_map>().lookup(name.data())) {}
u64 lv2_file::op_read(const fs::file &file, vm::ptr<void> buf, u64 size,
u64 opt_pos) {
if (u64 region = buf.addr() >> 28,
region_end = (buf.addr() & 0xfff'ffff) + (size & 0xfff'ffff);
region == region_end && ((region >> 28) == 0 || region >= 0xC)) {
// Optimize reads from safe memory
return (opt_pos == umax ? file.read(buf.get_ptr(), size)
: file.read_at(opt_pos, buf.get_ptr(), size));
}
// Copy data from intermediate buffer (avoid passing vm pointer to a native
// API)
std::vector<uchar> local_buf(std::min<u64>(size, 65536));
u64 result = 0;
while (result < size) {
const u64 block = std::min<u64>(size - result, local_buf.size());
const u64 nread = (opt_pos == umax ? file.read(local_buf.data(), block)
: file.read_at(opt_pos + result,
local_buf.data(), block));
std::memcpy(static_cast<uchar *>(buf.get_ptr()) + result, local_buf.data(),
nread);
result += nread;
if (nread < block) {
break;
}
}
return result;
}
u64 lv2_file::op_write(const fs::file &file, vm::cptr<void> buf, u64 size) {
// Copy data to intermediate buffer (avoid passing vm pointer to a native API)
std::vector<uchar> local_buf(std::min<u64>(size, 65536));
u64 result = 0;
while (result < size) {
const u64 block = std::min<u64>(size - result, local_buf.size());
std::memcpy(local_buf.data(),
static_cast<const uchar *>(buf.get_ptr()) + result, block);
const u64 nwrite = file.write(+local_buf.data(), block);
result += nwrite;
if (nwrite < block) {
break;
}
}
return result;
}
lv2_file::lv2_file(utils::serial &ar)
: lv2_fs_object(ar, false), mode(ar), flags(ar), type(ar) {
[[maybe_unused]] const s32 version = GET_SERIALIZATION_VERSION(lv2_fs);
ar(lock);
be_t<u64> arg = 0;
u64 size = 0;
switch (type) {
case lv2_file_type::regular:
break;
case lv2_file_type::sdata:
arg = 0x18000000010, size = 8;
break; // TODO: Fix
case lv2_file_type::edata:
arg = 0x2, size = 8;
break;
}
const std::string retrieve_real = ar.pop<std::string>();
if (type == lv2_file_type::edata && version >= 2) {
ar(g_fxo->get<loaded_npdrm_keys>().one_time_key);
}
open_result_t res = lv2_file::open(retrieve_real, flags & CELL_FS_O_ACCMODE,
mode, size ? &arg : nullptr, size);
file = std::move(res.file);
real_path = std::move(res.real_path);
g_fxo->get<loaded_npdrm_keys>().npdrm_fds.raw() +=
type != lv2_file_type::regular;
g_fxo->get<loaded_npdrm_keys>().one_time_key = {};
if (ar.pop<bool>()) // see lv2_file::save in_mem
{
const fs::stat_t stat = ar;
std::vector<u8> buf(stat.size);
ar(std::span<u8>(buf.data(), buf.size()));
file = fs::make_stream<std::vector<u8>>(std::move(buf), stat);
}
if (!file) {
sys_fs.error("Failed to load \'%s\' file for savestates (res=%s, "
"vpath=\'%s\', real-path=\'%s\', type=%s, flags=0x%x)",
name.data(), res.error, retrieve_real, real_path, type, flags);
ar.pos += sizeof(u64);
ensure(!!g_cfg.savestate.state_inspection_mode);
return;
} else {
sys_fs.success("Loaded file descriptor \'%s\' file for savestates "
"(vpath=\'%s\', type=%s, flags=0x%x, id=%d)",
name.data(), retrieve_real, type, flags, idm::last_id());
}
file.seek(ar);
}
void lv2_file::save(utils::serial &ar) {
USING_SERIALIZATION_VERSION(lv2_fs);
ar(name, mode, flags, type, lock,
ensure(vfs::retrieve(real_path), FN(!x.empty())));
if (type == lv2_file_type::edata) {
auto file_ptr = file.release();
ar(static_cast<EDATADecrypter *>(file_ptr.get())->get_key());
file.reset(std::move(file_ptr));
}
if (!mp.read_only && flags & CELL_FS_O_ACCMODE) {
// Ensure accurate timestamps and content on disk
file.sync();
}
// UNIX allows deletion of files while descriptors are still opened
// descriptors shall keep the data in memory in this case
const bool in_mem = [&]() {
if (mp.read_only) {
return false;
}
fs::file test{real_path};
if (!test) {
if (fs::is_file(real_path + ".66600")) {
// May be a split-files descriptor, don't even bother
return false;
}
return true;
}
fs::file_id test_s = test.get_id();
fs::file_id file_s = file.get_id();
return !test_s.is_coherent_with(file_s);
}();
ar(in_mem);
if (in_mem) {
fs::stat_t stats = file.get_stat();
sys_fs.error("Saving \'%s\' LV2 file descriptor in memory! (exists=%s, "
"type=%s, flags=0x%x, size=0x%x)",
name.data(), fs::is_file(real_path), type, flags, stats.size);
const usz patch_stats_pos = ar.seek_end();
ar(stats);
const usz old_end = ar.pad_from_end(stats.size);
if (usz read_size = file.read_at(0, &ar.data[old_end], stats.size);
read_size != stats.size) {
ensure(read_size < stats.size);
sys_fs.error("Read less than expected! (new-size=0x%x)", read_size);
stats.size = read_size;
ar.data.resize(old_end + stats.size);
write_to_ptr<fs::stat_t>(&ar.data[patch_stats_pos], stats);
}
}
ar(file.pos());
}
lv2_dir::lv2_dir(utils::serial &ar)
: lv2_fs_object(ar, false), entries([&] {
std::vector<fs::dir_entry> entries;
u64 size = 0;
ar.deserialize_vle(size);
entries.resize(size);
for (auto &entry : entries) {
ar(entry.name, static_cast<fs::stat_t &>(entry));
}
return entries;
}()),
pos(ar) {}
void lv2_dir::save(utils::serial &ar) {
USING_SERIALIZATION_VERSION(lv2_fs);
ar(name);
ar.serialize_vle(entries.size());
for (auto &entry : entries) {
ar(entry.name, static_cast<const fs::stat_t &>(entry));
}
ar(pos);
}
loaded_npdrm_keys::loaded_npdrm_keys(utils::serial &ar) { save(ar); }
void loaded_npdrm_keys::save(utils::serial &ar) {
ar(dec_keys_pos);
ar(std::span(dec_keys, std::min<usz>(std::size(dec_keys), dec_keys_pos)));
}
struct lv2_file::file_view : fs::file_base {
const shared_ptr<lv2_file> m_file;
const u64 m_off;
u64 m_pos;
explicit file_view(const shared_ptr<lv2_file> &_file, u64 offset)
: m_file(_file), m_off(offset), m_pos(0) {}
~file_view() override {}
fs::stat_t get_stat() override {
fs::stat_t stat = m_file->file.get_stat();
// TODO: Check this on realhw
// stat.size = utils::sub_saturate<u64>(stat.size, m_off);
stat.is_writable = false;
return stat;
}
bool trunc(u64) override { return false; }
u64 read(void *buffer, u64 size) override {
const u64 result = file_view::read_at(m_pos, buffer, size);
m_pos += result;
return result;
}
u64 read_at(u64 offset, void *buffer, u64 size) override {
return m_file->file.read_at(m_off + offset, buffer, size);
}
u64 write(const void *, u64) override { return 0; }
u64 seek(s64 offset, fs::seek_mode whence) override {
const s64 new_pos = whence == fs::seek_set ? offset
: whence == fs::seek_cur ? offset + m_pos
: whence == fs::seek_end ? offset + size()
: -1;
if (new_pos < 0) {
fs::g_tls_error = fs::error::inval;
return -1;
}
m_pos = new_pos;
return m_pos;
}
u64 size() override {
return utils::sub_saturate<u64>(m_file->file.size(), m_off);
}
fs::file_id get_id() override {
fs::file_id id = m_file->file.get_id();
be_t<u64> off = m_off;
const auto ptr = reinterpret_cast<u8 *>(&off);
id.data.insert(id.data.end(), ptr, ptr + sizeof(off));
id.type.insert(0, "lv2_file::file_view: "sv);
return id;
}
};
fs::file lv2_file::make_view(const shared_ptr<lv2_file> &_file, u64 offset) {
fs::file result;
result.reset(std::make_unique<lv2_file::file_view>(_file, offset));
return result;
}
std::pair<CellError, std::string> translate_to_str(vm::cptr<char> ptr,
bool is_path = true) {
constexpr usz max_length = CELL_FS_MAX_FS_PATH_LENGTH + 1;
std::string path;
if (!vm::read_string(ptr.addr(), max_length, path, true)) {
// Null character lookup has ended whilst pointing at invalid memory
return {CELL_EFAULT, std::move(path)};
}
if (path.size() == max_length) {
return {CELL_ENAMETOOLONG, {}};
}
if (is_path && !path.starts_with("/"sv)) {
return {CELL_ENOENT, std::move(path)};
}
return {{}, std::move(path)};
}
error_code sys_fs_test(ppu_thread &, u32 arg1, u32 arg2, vm::ptr<u32> arg3,
u32 arg4, vm::ptr<char> buf, u32 buf_size) {
sys_fs.trace("sys_fs_test(arg1=0x%x, arg2=0x%x, arg3=*0x%x, arg4=0x%x, "
"buf=*0x%x, buf_size=0x%x)",
arg1, arg2, arg3, arg4, buf, buf_size);
if (arg1 != 6 || arg2 != 0 || arg4 != sizeof(u32)) {
sys_fs.todo("sys_fs_test: unknown arguments (arg1=0x%x, arg2=0x%x, "
"arg3=*0x%x, arg4=0x%x)",
arg1, arg2, arg3, arg4);
}
if (!arg3) {
return CELL_EFAULT;
}
const auto file = idm::get_unlocked<lv2_fs_object>(*arg3);
if (!file) {
return CELL_EBADF;
}
for (u32 i = 0; i < buf_size; i++) {
if (!(buf[i] = file->name[i])) {
return CELL_OK;
}
}
buf[buf_size - 1] = 0;
return CELL_OK;
}
lv2_file::open_raw_result_t lv2_file::open_raw(const std::string &local_path,
s32 flags, s32 /*mode*/,
lv2_file_type type,
const lv2_fs_mount_info &mp) {
// TODO: other checks for path
if (fs::is_dir(local_path)) {
return {CELL_EISDIR};
}
replace bs_t with rx::EnumBitSet
2025-10-04 21:19:57 +02:00
rx::EnumBitSet<fs::open_mode> open_mode{};
Move rpcs3/Emu/Cell/lv2 to kernel/cellos
2025-10-04 15:46:36 +02:00
switch (flags & CELL_FS_O_ACCMODE) {
case CELL_FS_O_RDONLY:
open_mode += fs::read;
break;
case CELL_FS_O_WRONLY:
open_mode += fs::write;
break;
case CELL_FS_O_RDWR:
open_mode += fs::read + fs::write;
break;
default:
break;
}
if (mp.read_only) {
if ((flags & CELL_FS_O_ACCMODE) != CELL_FS_O_RDONLY &&
fs::is_file(local_path)) {
return {CELL_EPERM};
}
}
if (flags & CELL_FS_O_CREAT) {
open_mode += fs::create;
if (flags & CELL_FS_O_EXCL) {
open_mode += fs::excl;
}
}
if (flags & CELL_FS_O_TRUNC) {
open_mode += fs::trunc;
}
if (flags & CELL_FS_O_MSELF) {
open_mode = fs::read;
// mself can be mself or mself | rdonly
if (flags & ~(CELL_FS_O_MSELF | CELL_FS_O_RDONLY)) {
open_mode = {};
}
}
if (flags & CELL_FS_O_UNK) {
sys_fs.warning(
"lv2_file::open() called with CELL_FS_O_UNK flag enabled. FLAGS: %#o",
flags);
}
if (mp.read_only) {
// Deactivate mutating flags on read-only FS
open_mode = fs::read;
}
// Tests have shown that invalid combinations get resolved internally (without
// exceptions), but that would complicate code with minimal accuracy gains.
// For example, no games are known to try and call TRUNCATE | APPEND | RW, or
// APPEND | READ, which currently would cause an exception.
if (flags &
~(CELL_FS_O_UNK | CELL_FS_O_ACCMODE | CELL_FS_O_CREAT | CELL_FS_O_TRUNC |
CELL_FS_O_APPEND | CELL_FS_O_EXCL | CELL_FS_O_MSELF)) {
open_mode = {}; // error
}
if ((flags & CELL_FS_O_ACCMODE) == CELL_FS_O_ACCMODE) {
open_mode = {}; // error
}
if (!open_mode) {
fmt::throw_exception(
"lv2_file::open_raw(): Invalid or unimplemented flags: %#o", flags);
}
std::lock_guard lock(mp->mutex);
fs::file file(local_path, open_mode);
if (!file && open_mode == fs::read && fs::g_tls_error == fs::error::noent) {
// Try to gather split file (TODO)
std::vector<fs::file> fragments;
for (u32 i = 66600; i <= 66699; i++) {
if (fs::file fragment{fmt::format("%s.%u", local_path, i)}) {
fragments.emplace_back(std::move(fragment));
} else {
break;
}
}
if (!fragments.empty()) {
file = fs::make_gather(std::move(fragments));
}
}
if (!file) {
if (mp.read_only) {
// Failed to create file on read-only FS (file doesn't exist)
if (flags & CELL_FS_O_ACCMODE && flags & CELL_FS_O_CREAT) {
return {CELL_EPERM};
}
}
if (open_mode & fs::excl && fs::g_tls_error == fs::error::exist) {
return {CELL_EEXIST};
}
switch (auto error = fs::g_tls_error) {
case fs::error::noent:
return {CELL_ENOENT};
default:
sys_fs.error("lv2_file::open(): unknown error %s", error);
}
return {CELL_EIO};
}
if (flags & CELL_FS_O_MSELF && !verify_mself(file)) {
return {CELL_ENOTMSELF};
}
if (type >= lv2_file_type::sdata) {
// check for sdata
switch (type) {
case lv2_file_type::sdata: {
// check if the file has the NPD header, or else assume its not encrypted
u32 magic;
file.read<u32>(magic);
file.seek(0);
if (magic == "NPD\0"_u32) {
auto sdata_file = std::make_unique<EDATADecrypter>(std::move(file));
if (!sdata_file->ReadHeader()) {
return {CELL_EFSSPECIFIC};
}
file.reset(std::move(sdata_file));
}
break;
}
// edata
case lv2_file_type::edata: {
// check if the file has the NPD header, or else assume its not encrypted
u32 magic;
file.read<u32>(magic);
file.seek(0);
if (magic == "NPD\0"_u32) {
auto &edatkeys = g_fxo->get<loaded_npdrm_keys>();
const u64 init_pos = edatkeys.dec_keys_pos;
const auto &dec_keys = edatkeys.dec_keys;
const u64 max_i = std::min<u64>(std::size(dec_keys), init_pos);
if (edatkeys.one_time_key) {
auto edata_file = std::make_unique<EDATADecrypter>(
std::move(file), edatkeys.one_time_key);
edatkeys.one_time_key = {};
if (!edata_file->ReadHeader()) {
// Read failure
return {CELL_EFSSPECIFIC};
}
file.reset(std::move(edata_file));
break;
}
for (u64 i = 0;; i++) {
if (i == max_i) {
// Run out of keys to try
return {CELL_EFSSPECIFIC};
}
// Try all registered keys
auto edata_file = std::make_unique<EDATADecrypter>(
std::move(file),
dec_keys[(init_pos - i - 1) % std::size(dec_keys)].load());
if (!edata_file->ReadHeader()) {
// Prepare file for the next iteration
file = std::move(edata_file->m_edata_file);
continue;
}
file.reset(std::move(edata_file));
break;
}
}
break;
}
default:
break;
}
}
return {.error = {}, .file = std::move(file)};
}
lv2_file::open_result_t lv2_file::open(std::string_view vpath, s32 flags,
s32 mode, const void *arg, u64 size) {
if (vpath.empty()) {
return {CELL_ENOENT};
}
std::string path;
std::string local_path = vfs::get(vpath, nullptr, &path);
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath);
if (mp == &g_mp_sys_dev_root) {
return {CELL_EISDIR, path};
}
if (local_path.empty()) {
return {CELL_ENOTMOUNTED, path};
}
if (flags & CELL_FS_O_CREAT && !has_fs_write_rights(vpath) &&
!fs::is_dir(local_path)) {
return {CELL_EACCES};
}
lv2_file_type type = lv2_file_type::regular;
if (size == 8) {
// see lv2_file::open_raw
switch (*static_cast<const be_t<u64, 1> *>(arg)) {
case 0x18000000010:
type = lv2_file_type::sdata;
break;
case 0x2:
type = lv2_file_type::edata;
break;
default:
break;
}
}
auto [error, file] = open_raw(local_path, flags, mode, type, mp);
return {.error = error,
.ppath = std::move(path),
.real_path = std::move(local_path),
.file = std::move(file),
.type = type};
}
error_code sys_fs_open(ppu_thread &ppu, vm::cptr<char> path, s32 flags,
vm::ptr<u32> fd, s32 mode, vm::cptr<void> arg,
u64 size) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_open(path=%s, flags=%#o, fd=*0x%x, mode=%#o, "
"arg=*0x%x, size=0x%llx)",
path, flags, fd, mode, arg, size);
const auto [path_error, vpath] = translate_to_str(path);
if (path_error) {
return {path_error, vpath};
}
auto [error, ppath, real, file, type] =
lv2_file::open(vpath, flags, mode, arg.get_ptr(), size);
if (error) {
if (error == CELL_EEXIST) {
return not_an_error(CELL_EEXIST);
}
return {g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath) ==
&g_mp_sys_dev_hdd1
? sys_fs.warning
: sys_fs.error,
error, path};
}
if (const u32 id = idm::import <lv2_fs_object, lv2_file>(
[&ppath = ppath, &file = file, mode, flags, &real = real,
&type = type]() -> shared_ptr<lv2_file> {
shared_ptr<lv2_file> result;
if (type >= lv2_file_type::sdata &&
!g_fxo->get<loaded_npdrm_keys>().npdrm_fds.try_inc(16)) {
return result;
}
result = stx::make_shared<lv2_file>(ppath, std::move(file), mode,
flags, real, type);
sys_fs.warning("sys_fs_open(): fd=%u, %s", idm::last_id(), *result);
return result;
})) {
ppu.check_state();
*fd = id;
return CELL_OK;
}
// Out of file descriptors
return {CELL_EMFILE, path};
}
error_code sys_fs_read(ppu_thread &ppu, u32 fd, vm::ptr<void> buf, u64 nbytes,
vm::ptr<u64> nread) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.trace("sys_fs_read(fd=%d, buf=*0x%x, nbytes=0x%llx, nread=*0x%x)", fd,
buf, nbytes, nread);
if (!nread) {
return CELL_EFAULT;
}
if (!buf) {
nread.try_write(0);
return CELL_EFAULT;
}
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file || (nbytes && file->flags & CELL_FS_O_WRONLY)) {
nread.try_write(
0); // nread writing is allowed to fail, error code is unchanged
return CELL_EBADF;
}
if (!nbytes) {
// Whole function is skipped, only EBADF and EBUSY are checked
if (file->lock == 1) {
nread.try_write(0);
return CELL_EBUSY;
}
ppu.check_state();
*nread = 0;
return CELL_OK;
}
std::unique_lock lock(file->mp->mutex);
if (!file->file) {
return CELL_EBADF;
}
if (file->lock == 2) {
nread.try_write(0);
return CELL_EIO;
}
const u64 read_bytes = file->op_read(buf, nbytes);
const bool failure = !read_bytes && file->file.pos() < file->file.size();
lock.unlock();
ppu.check_state();
*nread = read_bytes;
if (failure) {
// EDATA corruption perhaps
return CELL_EFSSPECIFIC;
}
return CELL_OK;
}
error_code sys_fs_write(ppu_thread &ppu, u32 fd, vm::cptr<void> buf, u64 nbytes,
vm::ptr<u64> nwrite) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.trace("sys_fs_write(fd=%d, buf=*0x%x, nbytes=0x%llx, nwrite=*0x%x)",
fd, buf, nbytes, nwrite);
if (!nwrite) {
return CELL_EFAULT;
}
if (!buf) {
nwrite.try_write(0);
return CELL_EFAULT;
}
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file || (nbytes && !(file->flags & CELL_FS_O_ACCMODE))) {
nwrite.try_write(
0); // nwrite writing is allowed to fail, error code is unchanged
return CELL_EBADF;
}
if (!nbytes) {
// Whole function is skipped, only EBADF and EBUSY are checked
if (file->lock == 1) {
nwrite.try_write(0);
return CELL_EBUSY;
}
ppu.check_state();
*nwrite = 0;
return CELL_OK;
}
if (file->type != lv2_file_type::regular) {
sys_fs.error("%s type: Writing %u bytes to FD=%d (path=%s)", file->type,
nbytes, file->name.data());
}
if (file->mp.read_only) {
nwrite.try_write(0);
return CELL_EROFS;
}
std::unique_lock lock(file->mp->mutex);
if (!file->file) {
return CELL_EBADF;
}
if (file->lock) {
if (file->lock == 2) {
nwrite.try_write(0);
return CELL_EIO;
}
nwrite.try_write(0);
return CELL_EBUSY;
}
if (file->flags & CELL_FS_O_APPEND) {
file->file.seek(0, fs::seek_end);
}
const u64 written = file->op_write(buf, nbytes);
lock.unlock();
ppu.check_state();
*nwrite = written;
return CELL_OK;
}
error_code sys_fs_close(ppu_thread &ppu, u32 fd) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file) {
return {CELL_EBADF, fd};
}
std::string FD_state_log;
if (sys_fs.warning) {
FD_state_log = fmt::format("sys_fs_close(fd=%u)", fd);
}
{
std::lock_guard lock(file->mp->mutex);
if (!file->file) {
sys_fs.warning("%s", FD_state_log);
return {CELL_EBADF, fd};
}
if (!(file->mp.read_only && file->mp->flags & lv2_mp_flag::cache) &&
file->flags & CELL_FS_O_ACCMODE) {
// Special: Ensure temporary directory for gamedata writes will remain on
// disk before final gamedata commitment
file->file.sync(); // For cellGameContentPermit atomicity
}
if (!FD_state_log.empty()) {
sys_fs.warning("%s: %s", FD_state_log, *file);
}
// Free memory associated with fd if any
if (file->ct_id && file->ct_used) {
auto &default_container = g_fxo->get<default_sys_fs_container>();
std::lock_guard lock(default_container.mutex);
if (auto ct = idm::get_unlocked<lv2_memory_container>(file->ct_id)) {
ct->free(file->ct_used);
if (default_container.id == file->ct_id) {
default_container.used -= file->ct_used;
}
}
}
// Ensure Host file handle won't be kept open after this syscall
file->file.close();
}
ensure(idm::withdraw<lv2_fs_object, lv2_file>(
fd, [&](lv2_file &_file) -> CellError {
if (_file.type >= lv2_file_type::sdata) {
g_fxo->get<loaded_npdrm_keys>().npdrm_fds--;
}
return {};
}));
if (file->lock == 1) {
return {CELL_EBUSY, fd};
}
return CELL_OK;
}
error_code sys_fs_opendir(ppu_thread &ppu, vm::cptr<char> path,
vm::ptr<u32> fd) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_opendir(path=%s, fd=*0x%x)", path, fd);
const auto [path_error, vpath] = translate_to_str(path);
if (path_error) {
return {path_error, vpath};
}
std::string processed_path;
std::vector<std::string> ext;
const std::string local_path = vfs::get(vpath, &ext, &processed_path);
processed_path += "/";
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath);
if (local_path.empty() && ext.empty()) {
return {CELL_ENOTMOUNTED, path};
}
// TODO: other checks for path
if (fs::is_file(local_path)) {
return {CELL_ENOTDIR, path};
}
std::unique_lock lock(mp->mutex);
const fs::dir dir(local_path);
if (!dir) {
switch (const auto error = fs::g_tls_error) {
case fs::error::noent: {
if (ext.empty()) {
return {mp == &g_mp_sys_dev_hdd1 ? sys_fs.warning : sys_fs.error,
CELL_ENOENT, path};
}
break;
}
default: {
sys_fs.error("sys_fs_opendir(): unknown error %s", error);
return {CELL_EIO, path};
}
}
}
// Build directory as a vector of entries
std::vector<fs::dir_entry> data;
if (dir) {
// Add real directories
while (dir.read(data.emplace_back())) {
// Preprocess entries
data.back().name = vfs::unescape(data.back().name);
if (!data.back().is_directory && data.back().name == "."sv) {
// Files hidden from emulation
data.resize(data.size() - 1);
continue;
}
// Add additional entries for split file candidates (while ends with
// .66600)
while (data.back().name.ends_with(".66600")) {
data.emplace_back(data.back()).name.resize(data.back().name.size() - 6);
}
}
data.resize(data.size() - 1);
} else {
data.emplace_back().name += '.';
data.back().is_directory = true;
data.emplace_back().name = "..";
data.back().is_directory = true;
}
// Add mount points (TODO)
for (auto &&ex : ext) {
data.emplace_back().name = std::move(ex);
data.back().is_directory = true;
}
// Sort files, keeping . and ..
std::stable_sort(data.begin() + 2, data.end(), FN(x.name < y.name));
// Remove duplicates
data.erase(std::unique(data.begin(), data.end(), FN(x.name == y.name)),
data.end());
if (const u32 id =
idm::make<lv2_fs_object, lv2_dir>(processed_path, std::move(data))) {
lock.unlock();
ppu.check_state();
*fd = id;
return CELL_OK;
}
// Out of file descriptors
return CELL_EMFILE;
}
error_code sys_fs_readdir(ppu_thread &ppu, u32 fd, vm::ptr<CellFsDirent> dir,
vm::ptr<u64> nread) {
ppu.state += cpu_flag::wait;
sys_fs.warning("sys_fs_readdir(fd=%d, dir=*0x%x, nread=*0x%x)", fd, dir,
nread);
if (!dir || !nread) {
return CELL_EFAULT;
}
const auto directory = idm::get_unlocked<lv2_fs_object, lv2_dir>(fd);
if (!directory) {
return CELL_EBADF;
}
ppu.check_state();
auto *info = directory->dir_read();
u64 nread_to_write = 0;
if (info) {
nread_to_write = sizeof(CellFsDirent);
} else {
// It does actually write polling the last entry. Seems consistent across
// HDD0 and HDD1 (TODO: check more partitions)
info = &directory->entries.back();
nread_to_write = 0;
}
CellFsDirent dir_write{};
dir_write.d_type =
info->is_directory ? CELL_FS_TYPE_DIRECTORY : CELL_FS_TYPE_REGULAR;
dir_write.d_namlen =
u8(std::min<usz>(info->name.size(), CELL_FS_MAX_FS_FILE_NAME_LENGTH));
strcpy_trunc(dir_write.d_name, info->name);
// TODO: Check more partitions (HDD1 is known to differ in actual filesystem
// implementation)
if (directory->mp != &g_mp_sys_dev_hdd1 && nread_to_write == 0) {
// First 3 bytes are being set to 0 here
dir_write.d_type = 0;
dir_write.d_namlen = 0;
dir_write.d_name[0] = '\0';
}
*dir = dir_write;
// Write after dir
*nread = nread_to_write;
return CELL_OK;
}
error_code sys_fs_closedir(ppu_thread &ppu, u32 fd) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_closedir(fd=%d)", fd);
if (!idm::remove<lv2_fs_object, lv2_dir>(fd)) {
return CELL_EBADF;
}
return CELL_OK;
}
error_code sys_fs_stat(ppu_thread &ppu, vm::cptr<char> path,
vm::ptr<CellFsStat> sb) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_stat(path=%s, sb=*0x%x)", path, sb);
const auto [path_error, vpath] = translate_to_str(path);
if (path_error) {
return {path_error, vpath};
}
const std::string local_path = vfs::get(vpath);
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath);
if (mp == &g_mp_sys_dev_root) {
sb->mode = CELL_FS_S_IFDIR | 0711;
sb->uid = -1;
sb->gid = -1;
sb->atime = -1;
sb->mtime = -1;
sb->ctime = -1;
sb->size = 258;
sb->blksize = 512;
return CELL_OK;
}
if (local_path.empty()) {
// This syscall can be used by games and VSH to test the presence of
// dev_usb000 ~ dev_usb127 Thus there is no need to fuss about
// CELL_ENOTMOUNTED in this case
return {sys_fs.warning, CELL_ENOTMOUNTED, path};
}
std::unique_lock lock(mp->mutex);
fs::stat_t info{};
if (!fs::get_stat(local_path, info)) {
switch (auto error = fs::g_tls_error) {
case fs::error::noent: {
// Try to analyse split file (TODO)
u64 total_size = 0;
for (u32 i = 66601; i <= 66699; i++) {
if (fs::get_stat(fmt::format("%s.%u", local_path, i), info) &&
!info.is_directory) {
total_size += info.size;
} else {
break;
}
}
// Use attributes from the first fragment (consistently with
// sys_fs_open+fstat)
if (fs::get_stat(local_path + ".66600", info) && !info.is_directory) {
// Success
info.size += total_size;
break;
}
return {mp == &g_mp_sys_dev_hdd1 ? sys_fs.warning : sys_fs.error,
CELL_ENOENT, path};
}
default: {
sys_fs.error("sys_fs_stat(): unknown error %s", error);
return {CELL_EIO, path};
}
}
}
lock.unlock();
ppu.check_state();
s32 mode =
info.is_directory ? CELL_FS_S_IFDIR | 0777 : CELL_FS_S_IFREG | 0666;
if (mp.read_only) {
// Remove write permissions
mode &= ~0222;
}
sb->mode = mode;
sb->uid = mp->flags & lv2_mp_flag::no_uid_gid ? -1 : 0;
sb->gid = mp->flags & lv2_mp_flag::no_uid_gid ? -1 : 0;
sb->atime = info.atime;
sb->mtime = info.mtime;
sb->ctime = info.ctime;
sb->size = info.is_directory ? mp->block_size : info.size;
sb->blksize = mp->block_size;
return CELL_OK;
}
error_code sys_fs_fstat(ppu_thread &ppu, u32 fd, vm::ptr<CellFsStat> sb) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_fstat(fd=%d, sb=*0x%x)", fd, sb);
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file) {
return CELL_EBADF;
}
std::unique_lock lock(file->mp->mutex);
if (!file->file) {
return CELL_EBADF;
}
if (file->lock == 2) {
return CELL_EIO;
}
const fs::stat_t info = file->file.get_stat();
lock.unlock();
ppu.check_state();
s32 mode =
info.is_directory ? CELL_FS_S_IFDIR | 0777 : CELL_FS_S_IFREG | 0666;
if (file->mp.read_only) {
// Remove write permissions
mode &= ~0222;
}
sb->mode = mode;
sb->uid = file->mp->flags & lv2_mp_flag::no_uid_gid ? -1 : 0;
sb->gid = file->mp->flags & lv2_mp_flag::no_uid_gid ? -1 : 0;
sb->atime = info.atime;
sb->mtime = info.mtime;
sb->ctime = info.ctime; // ctime may be incorrect
sb->size = info.size;
sb->blksize = file->mp->block_size;
return CELL_OK;
}
error_code sys_fs_link(ppu_thread &, vm::cptr<char> from, vm::cptr<char> to) {
sys_fs.todo("sys_fs_link(from=%s, to=%s)", from, to);
return CELL_OK;
}
error_code sys_fs_mkdir(ppu_thread &ppu, vm::cptr<char> path, s32 mode) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_mkdir(path=%s, mode=%#o)", path, mode);
const auto [path_error, vpath] = translate_to_str(path);
if (path_error) {
return {path_error, vpath};
}
const std::string local_path = vfs::get(vpath);
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath);
if (mp == &g_mp_sys_dev_root) {
return {CELL_EEXIST, path};
}
if (local_path.empty()) {
return {CELL_ENOTMOUNTED, path};
}
if (mp.read_only) {
return {CELL_EROFS, path};
}
if (!fs::exists(local_path) && !has_fs_write_rights(path.get_ptr())) {
return {CELL_EACCES, path};
}
std::lock_guard lock(mp->mutex);
if (!fs::create_dir(local_path)) {
switch (auto error = fs::g_tls_error) {
case fs::error::noent: {
return {mp == &g_mp_sys_dev_hdd1 ? sys_fs.warning : sys_fs.error,
CELL_ENOENT, path};
}
case fs::error::exist: {
return {sys_fs.warning, CELL_EEXIST, path};
}
default:
sys_fs.error("sys_fs_mkdir(): unknown error %s", error);
}
return {CELL_EIO, path}; // ???
}
sys_fs.notice("sys_fs_mkdir(): directory %s created", path);
return CELL_OK;
}
error_code sys_fs_rename(ppu_thread &ppu, vm::cptr<char> from,
vm::cptr<char> to) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_rename(from=%s, to=%s)", from, to);
const auto [from_error, vfrom] = translate_to_str(from);
if (from_error) {
return {from_error, vfrom};
}
const auto [to_error, vto] = translate_to_str(to);
if (to_error) {
return {to_error, vto};
}
const std::string local_from = vfs::get(vfrom);
const std::string local_to = vfs::get(vto);
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vfrom);
const auto &mp_to = g_fxo->get<lv2_fs_mount_info_map>().lookup(vto);
if (mp == &g_mp_sys_dev_root || mp_to == &g_mp_sys_dev_root) {
return CELL_EPERM;
}
if (local_from.empty() || local_to.empty()) {
return CELL_ENOTMOUNTED;
}
if (mp != mp_to) {
return CELL_EXDEV;
}
if (mp.read_only) {
return CELL_EROFS;
}
// Done in vfs::host::rename
// std::lock_guard lock(mp->mutex);
if (!vfs::host::rename(local_from, local_to, mp.mp, false)) {
switch (auto error = fs::g_tls_error) {
case fs::error::noent:
return {CELL_ENOENT, from};
case fs::error::exist:
return {CELL_EEXIST, to};
default:
sys_fs.error("sys_fs_rename(): unknown error %s", error);
}
return {CELL_EIO, from}; // ???
}
sys_fs.notice("sys_fs_rename(): %s renamed to %s", from, to);
return CELL_OK;
}
error_code sys_fs_rmdir(ppu_thread &ppu, vm::cptr<char> path) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_rmdir(path=%s)", path);
const auto [path_error, vpath] = translate_to_str(path);
if (path_error) {
return {path_error, vpath};
}
const std::string local_path = vfs::get(vpath);
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath);
if (mp == &g_mp_sys_dev_root) {
return {CELL_EPERM, path};
}
if (local_path.empty()) {
return {CELL_ENOTMOUNTED, path};
}
if (mp.read_only) {
return {CELL_EROFS, path};
}
if (fs::is_dir(local_path) && !has_fs_write_rights(path.get_ptr())) {
return {CELL_EACCES};
}
std::lock_guard lock(mp->mutex);
if (!fs::remove_dir(local_path)) {
switch (auto error = fs::g_tls_error) {
case fs::error::noent:
return {CELL_ENOENT, path};
case fs::error::notempty:
return {CELL_ENOTEMPTY, path};
default:
sys_fs.error("sys_fs_rmdir(): unknown error %s", error);
}
return {CELL_EIO, path}; // ???
}
sys_fs.notice("sys_fs_rmdir(): directory %s removed", path);
return CELL_OK;
}
error_code sys_fs_unlink(ppu_thread &ppu, vm::cptr<char> path) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_unlink(path=%s)", path);
const auto [path_error, vpath] = translate_to_str(path);
if (path_error) {
return {path_error, vpath};
}
const std::string local_path = vfs::get(vpath);
std::string mount_path =
fs::get_parent_dir(vpath); // Use its parent directory as fallback
const auto &mp =
g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath, true, &mount_path);
if (mp == &g_mp_sys_dev_root) {
return {CELL_EISDIR, path};
}
if (local_path.empty()) {
return {CELL_ENOTMOUNTED, path};
}
if (fs::is_dir(local_path)) {
return {CELL_EISDIR, path};
}
if (mp.read_only) {
return {CELL_EROFS, path};
}
std::lock_guard lock(mp->mutex);
if (!vfs::host::unlink(local_path, vfs::get(mount_path))) {
switch (auto error = fs::g_tls_error) {
case fs::error::noent: {
return {mp == &g_mp_sys_dev_hdd1 ? sys_fs.warning : sys_fs.error,
CELL_ENOENT, path};
}
default:
sys_fs.error("sys_fs_unlink(): unknown error %s", error);
}
return {CELL_EIO, path}; // ???
}
sys_fs.notice("sys_fs_unlink(): file %s deleted", path);
return CELL_OK;
}
error_code sys_fs_access(ppu_thread &, vm::cptr<char> path, s32 mode) {
sys_fs.todo("sys_fs_access(path=%s, mode=%#o)", path, mode);
return CELL_OK;
}
error_code sys_fs_fcntl(ppu_thread &ppu, u32 fd, u32 op, vm::ptr<void> _arg,
u32 _size) {
ppu.state += cpu_flag::wait;
sys_fs.trace("sys_fs_fcntl(fd=%d, op=0x%x, arg=*0x%x, size=0x%x)", fd, op,
_arg, _size);
switch (op) {
case 0x80000004: // Unknown
{
if (_size > 4) {
return CELL_EINVAL;
}
const auto arg = vm::static_ptr_cast<u32>(_arg);
*arg = 0;
break;
}
case 0x80000006: // cellFsAllocateFileAreaByFdWithInitialData
{
break;
}
case 0x80000007: // cellFsAllocateFileAreaByFdWithoutZeroFill
{
break;
}
case 0x80000008: // cellFsChangeFileSizeByFdWithoutAllocation
{
break;
}
case 0x8000000a: // cellFsReadWithOffset
case 0x8000000b: // cellFsWriteWithOffset
{
lv2_obj::sleep(ppu);
const auto arg = vm::static_ptr_cast<lv2_file_op_rw>(_arg);
if (_size < arg.size()) {
return CELL_EINVAL;
}
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file) {
return CELL_EBADF;
}
if (op == 0x8000000a && file->flags & CELL_FS_O_WRONLY) {
return CELL_EBADF;
}
if (op == 0x8000000b && !(file->flags & CELL_FS_O_ACCMODE)) {
return CELL_EBADF;
}
if (op == 0x8000000b && file->flags & CELL_FS_O_APPEND) {
return CELL_EBADF;
}
if (op == 0x8000000b && file->mp.read_only) {
return CELL_EROFS;
}
if (op == 0x8000000b && file->type != lv2_file_type::regular && arg->size) {
sys_fs.error("%s type: Writing %u bytes to FD=%d (path=%s)", file->type,
arg->size, file->name.data());
}
std::unique_lock wlock(file->mp->mutex, std::defer_lock);
std::shared_lock rlock(file->mp->mutex, std::defer_lock);
if (op == 0x8000000b) {
// Writer lock
wlock.lock();
} else {
// Reader lock (not needing exclusivity in this special case because the
// state should not change)
rlock.lock();
}
if (!file->file) {
return CELL_EBADF;
}
if (file->lock == 2) {
return CELL_EIO;
}
if (op == 0x8000000b && file->lock) {
return CELL_EBUSY;
}
u64 old_pos = umax;
const u64 op_pos = arg->offset;
if (op == 0x8000000b) {
old_pos = file->file.pos();
file->file.seek(op_pos);
}
arg->out_size = op == 0x8000000a
? file->op_read(arg->buf, arg->size, op_pos)
: file->op_write(arg->buf, arg->size);
if (op == 0x8000000b) {
ensure(old_pos == file->file.seek(old_pos));
}
// TODO: EDATA corruption detection
arg->out_code = CELL_OK;
return CELL_OK;
}
case 0x80000009: // cellFsSdataOpenByFd
{
lv2_obj::sleep(ppu);
const auto arg = vm::static_ptr_cast<lv2_file_op_09>(_arg);
if (_size < arg.size()) {
return CELL_EINVAL;
}
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file) {
return {CELL_EBADF, "fd=%u", fd};
}
sys_fs.warning("sys_fs_fcntl(0x80000009): fd=%d, arg->offset=0x%x, "
"size=0x%x (file: %s)",
fd, arg->offset, _size, *file);
std::lock_guard lock(file->mp->mutex);
if (!file->file) {
return {CELL_EBADF, "fd=%u", fd};
}
auto sdata_file = std::make_unique<EDATADecrypter>(
lv2_file::make_view(file, arg->offset));
if (!sdata_file->ReadHeader()) {
return {CELL_EFSSPECIFIC, "fd=%u", fd};
}
fs::file stream;
stream.reset(std::move(sdata_file));
if (const u32 id = idm::import <lv2_fs_object, lv2_file>(
[&file = *file, &stream = stream]() -> shared_ptr<lv2_file> {
if (!g_fxo->get<loaded_npdrm_keys>().npdrm_fds.try_inc(16)) {
return null_ptr;
}
return stx::make_shared<lv2_file>(
file, std::move(stream), file.mode, CELL_FS_O_RDONLY,
file.real_path, lv2_file_type::sdata);
})) {
arg->out_code = CELL_OK;
arg->out_fd = id;
return CELL_OK;
}
// Out of file descriptors
return CELL_EMFILE;
}
case 0xc0000002: // cellFsGetFreeSize (TODO)
{
lv2_obj::sleep(ppu);
const auto arg = vm::static_ptr_cast<lv2_file_c0000002>(_arg);
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup("/dev_hdd0");
arg->out_block_size = mp->block_size;
arg->out_block_count =
(40ull * 1024 * 1024 * 1024 - 1) /
mp->block_size; // Read explanation in cellHddGameCheck
return CELL_OK;
}
case 0xc0000003: // cellFsUtilitySetFakeSize
{
break;
}
case 0xc0000004: // cellFsUtilityGetFakeSize
{
break;
}
case 0xc0000006: // Unknown
{
const auto arg = vm::static_ptr_cast<lv2_file_c0000006>(_arg);
if (arg->size != 0x20u) {
sys_fs.error("sys_fs_fcntl(0xc0000006): invalid size (0x%x)", arg->size);
break;
}
if (arg->_x4 != 0x10u || arg->_x8 != 0x18u) {
sys_fs.error("sys_fs_fcntl(0xc0000006): invalid args (0x%x, 0x%x)",
arg->_x4, arg->_x8);
break;
}
// Load mountpoint (doesn't support multiple // at the start)
std::string_view vpath{arg->name.get_ptr(), arg->name_size};
sys_fs.notice("sys_fs_fcntl(0xc0000006): %s", vpath);
// Check only mountpoint
vpath = vpath.substr(0, vpath.find_first_of("/", 1));
// Some mountpoints seem to be handled specially
if (false) {
// TODO: /dev_hdd1, /dev_usb000, /dev_flash
// arg->out_code = CELL_OK;
// arg->out_id = 0x1b5;
}
arg->out_code = CELL_ENOTSUP;
arg->out_id = 0;
return CELL_OK;
}
case 0xc0000007: // cellFsArcadeHddSerialNumber
{
const auto arg = vm::static_ptr_cast<lv2_file_c0000007>(_arg);
arg->out_code = CELL_OK;
if (const auto size = arg->model_size; size > 0)
strcpy_trunc(
std::span(arg->model.get_ptr(), size),
fmt::format("%-*s", size - 1,
g_cfg.sys.hdd_model
.to_string())); // Example: "TOSHIBA MK3265GSX H "
if (const auto size = arg->serial_size; size > 0)
strcpy_trunc(
std::span(arg->serial.get_ptr(), size),
fmt::format(
"%*s", size - 1,
g_cfg.sys.hdd_serial.to_string())); // Example: " 0A1B2C3D4"
else
return CELL_EFAULT; // CELL_EFAULT is returned only when arg->serial_size
// == 0
return CELL_OK;
}
case 0xc0000008: // cellFsSetDefaultContainer, cellFsSetIoBuffer,
// cellFsSetIoBufferFromDefaultContainer
{
// Allocates memory from a container/default container to a specific fd or
// default IO processing
const auto arg = vm::static_ptr_cast<lv2_file_c0000008>(_arg);
auto &default_container = g_fxo->get<default_sys_fs_container>();
std::lock_guard def_container_lock(default_container.mutex);
if (fd == 0xFFFFFFFF) {
// No check on container is done when setting default container
default_container.id = arg->size ? ::narrow<u32>(arg->container_id) : 0u;
default_container.cap = arg->size;
default_container.used = 0;
arg->out_code = CELL_OK;
return CELL_OK;
}
auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file) {
return CELL_EBADF;
}
if (auto ct = idm::get_unlocked<lv2_memory_container>(file->ct_id)) {
ct->free(file->ct_used);
if (default_container.id == file->ct_id) {
default_container.used -= file->ct_used;
}
}
file->ct_id = 0;
file->ct_used = 0;
// Aligns on lower bound
u32 actual_size =
arg->size -
(arg->size % ((arg->page_type & CELL_FS_IO_BUFFER_PAGE_SIZE_64KB)
? 0x10000
: 0x100000));
if (!actual_size) {
arg->out_code = CELL_OK;
return CELL_OK;
}
u32 new_container_id = arg->container_id == 0xFFFFFFFF
? default_container.id
: ::narrow<u32>(arg->container_id);
if (default_container.id == new_container_id &&
(default_container.used + actual_size) > default_container.cap) {
return CELL_ENOMEM;
}
const auto ct = idm::get<lv2_memory_container>(
new_container_id, [&](lv2_memory_container &ct) -> CellError {
if (!ct.take(actual_size)) {
return CELL_ENOMEM;
}
return {};
});
if (!ct) {
return CELL_ESRCH;
}
if (ct.ret) {
return ct.ret;
}
if (default_container.id == new_container_id) {
default_container.used += actual_size;
}
file->ct_id = new_container_id;
file->ct_used = actual_size;
arg->out_code = CELL_OK;
return CELL_OK;
}
case 0xc0000015: // USB Vid/Pid query
case 0xc000001c: // USB Vid/Pid/Serial query
{
const auto arg = vm::static_ptr_cast<lv2_file_c0000015>(_arg);
const bool with_serial = op == 0xc000001c;
if (arg->size !=
(with_serial ? sizeof(lv2_file_c000001c) : sizeof(lv2_file_c0000015))) {
sys_fs.error("sys_fs_fcntl(0x%08x): invalid size (0x%x)", op, arg->size);
break;
}
if (arg->_x4 != 0x10u || arg->_x8 != 0x18u) {
sys_fs.error("sys_fs_fcntl(0x%08x): invalid args (0x%x, 0x%x)", op,
arg->_x4, arg->_x8);
break;
}
std::string_view vpath{arg->path.get_ptr(), arg->path_size};
if (vpath.size() == 0)
return CELL_ENOMEM;
// Trim trailing '\0'
if (const auto trim_pos = vpath.find('\0'); trim_pos != umax)
vpath.remove_suffix(vpath.size() - trim_pos);
arg->out_code =
CELL_ENOTMOUNTED; // arg->out_code is set to CELL_ENOTMOUNTED on real
// hardware when the device doesn't exist or when the
// device isn't USB
if (!vfs::get(vpath).empty()) {
if (const auto &mp =
g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath, true);
mp == &g_mp_sys_dev_usb) {
const cfg::device_info device = g_cfg_vfs.get_device(
g_cfg_vfs.dev_usb,
fmt::format("%s%s", mp->root, mp.device.substr(mp->device.size())));
const auto usb_ids = device.get_usb_ids();
std::tie(arg->vendorID, arg->productID) = usb_ids;
if (with_serial) {
const auto arg_c000001c =
vm::static_ptr_cast<lv2_file_c000001c>(_arg);
const std::u16string serial = utf8_to_utf16(
device.serial); // Serial needs to be encoded to utf-16 BE
std::copy_n(serial.begin(),
std::min(serial.size(),
sizeof(arg_c000001c->serial) / sizeof(u16)),
arg_c000001c->serial);
}
arg->out_code = CELL_OK;
sys_fs.trace("sys_fs_fcntl(0x%08x): found device \"%s\" (vid=0x%04x, "
"pid=0x%04x, serial=\"%s\")",
op, mp.device, usb_ids.first, usb_ids.second,
device.serial);
}
}
return CELL_OK;
}
case 0xc0000016: // ps2disc_8160A811
{
break;
}
case 0xc000001a: // cellFsSetDiscReadRetrySetting, 5731DF45
{
[[maybe_unused]] const auto arg =
vm::static_ptr_cast<lv2_file_c000001a>(_arg);
return CELL_OK;
}
case 0xc0000021: // 9FDBBA89
{
break;
}
case 0xe0000000: // Unknown (cellFsGetBlockSize)
{
break;
}
case 0xe0000001: // Unknown (cellFsStat)
{
break;
}
case 0xe0000003: // Unknown
{
break;
}
case 0xe0000004: // Unknown
{
break;
}
case 0xe0000005: // Unknown (cellFsMkdir)
{
break;
}
case 0xe0000006: // Unknown
{
break;
}
case 0xe0000007: // Unknown
{
break;
}
case 0xe0000008: // Unknown (cellFsAclRead)
{
break;
}
case 0xe0000009: // Unknown (cellFsAccess)
{
break;
}
case 0xe000000a: // Unknown (E3D28395)
{
break;
}
case 0xe000000b: // Unknown (cellFsRename, FF29F478)
{
break;
}
case 0xe000000c: // Unknown (cellFsTruncate)
{
break;
}
case 0xe000000d: // Unknown (cellFsUtime)
{
break;
}
case 0xe000000e: // Unknown (cellFsAclWrite)
{
break;
}
case 0xe000000f: // Unknown (cellFsChmod)
{
break;
}
case 0xe0000010: // Unknown (cellFsChown)
{
break;
}
case 0xe0000011: // Unknown
{
break;
}
case 0xe0000012: // cellFsGetDirectoryEntries
{
lv2_obj::sleep(ppu);
const auto arg = vm::static_ptr_cast<lv2_file_op_dir::dir_info>(_arg);
if (_size < arg.size()) {
return CELL_EINVAL;
}
const auto directory = idm::get_unlocked<lv2_fs_object, lv2_dir>(fd);
if (!directory) {
return CELL_EBADF;
}
ppu.check_state();
u32 read_count = 0;
// NOTE: This function is actually capable of reading only one entry at a
// time
if (const u32 max = arg->max) {
const auto arg_ptr = +arg->ptr;
if (auto *info = directory->dir_read()) {
auto &entry = arg_ptr[read_count++];
s32 mode = info->is_directory ? CELL_FS_S_IFDIR | 0777
: CELL_FS_S_IFREG | 0666;
if (directory->mp.read_only) {
// Remove write permissions
mode &= ~0222;
}
entry.attribute.mode = mode;
entry.attribute.uid =
directory->mp->flags & lv2_mp_flag::no_uid_gid ? -1 : 0;
entry.attribute.gid =
directory->mp->flags & lv2_mp_flag::no_uid_gid ? -1 : 0;
entry.attribute.atime = info->atime;
entry.attribute.mtime = info->mtime;
entry.attribute.ctime = info->ctime;
entry.attribute.size = info->size;
entry.attribute.blksize = directory->mp->block_size;
entry.entry_name.d_type =
info->is_directory ? CELL_FS_TYPE_DIRECTORY : CELL_FS_TYPE_REGULAR;
entry.entry_name.d_namlen = u8(
std::min<usz>(info->name.size(), CELL_FS_MAX_FS_FILE_NAME_LENGTH));
strcpy_trunc(entry.entry_name.d_name, info->name);
}
// Apparently all this function does to additional buffer elements is to
// zeroize them
std::memset(arg_ptr.get_ptr() + read_count, 0,
(max - read_count) * arg->ptr.size());
}
arg->_size = read_count;
arg->_code = CELL_OK;
return CELL_OK;
}
case 0xe0000015: // Unknown
{
break;
}
case 0xe0000016: // cellFsAllocateFileAreaWithInitialData
{
break;
}
case 0xe0000017: // cellFsAllocateFileAreaWithoutZeroFill
{
const auto arg = vm::static_ptr_cast<lv2_file_e0000017>(_arg);
if (_size < arg->size || arg->_x4 != 0x10u || arg->_x8 != 0x20u) {
return CELL_EINVAL;
}
arg->out_code = sys_fs_truncate(ppu, arg->file_path, arg->file_size);
return CELL_OK;
}
case 0xe0000018: // cellFsChangeFileSizeWithoutAllocation
{
break;
}
case 0xe0000019: // Unknown
{
break;
}
case 0xe000001b: // Unknown
{
break;
}
case 0xe000001d: // Unknown
{
break;
}
case 0xe000001e: // Unknown
{
break;
}
case 0xe000001f: // Unknown
{
break;
}
case 0xe0000020: // Unknown
{
break;
}
case 0xe0000025: // cellFsSdataOpenWithVersion
{
const auto arg = vm::static_ptr_cast<lv2_file_e0000025>(_arg);
if (arg->size != 0x30u) {
sys_fs.error("sys_fs_fcntl(0xe0000025): invalid size (0x%x)", arg->size);
break;
}
if (arg->_x4 != 0x10u || arg->_x8 != 0x28u) {
sys_fs.error("sys_fs_fcntl(0xe0000025): invalid args (0x%x, 0x%x)",
arg->_x4, arg->_x8);
break;
}
std::string_view vpath{arg->name.get_ptr(), arg->name_size};
vpath = vpath.substr(0, vpath.find_first_of('\0'));
sys_fs.notice("sys_fs_fcntl(0xe0000025): %s", vpath);
be_t<u64> sdata_identifier = 0x18000000010;
lv2_file::open_result_t result =
lv2_file::open(vpath, 0, 0, &sdata_identifier, 8);
if (result.error) {
return result.error;
}
if (const u32 id = idm::import <lv2_fs_object, lv2_file>(
[&]() -> shared_ptr<lv2_file> {
if (!g_fxo->get<loaded_npdrm_keys>().npdrm_fds.try_inc(16)) {
return null_ptr;
}
return stx::make_shared<lv2_file>(
result.ppath, std::move(result.file), 0, 0,
std::move(result.real_path), lv2_file_type::sdata);
})) {
arg->out_code = CELL_OK;
arg->fd = id;
return CELL_OK;
}
// Out of file descriptors
return CELL_EMFILE;
}
}
sys_fs.error(
"sys_fs_fcntl(): Unknown operation 0x%08x (fd=%d, arg=*0x%x, size=0x%x)",
op, fd, _arg, _size);
return CELL_OK;
}
error_code sys_fs_lseek(ppu_thread &ppu, u32 fd, s64 offset, s32 whence,
vm::ptr<u64> pos) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.trace("sys_fs_lseek(fd=%d, offset=0x%llx, whence=0x%x, pos=*0x%x)", fd,
offset, whence, pos);
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file) {
return CELL_EBADF;
}
std::unique_lock lock(file->mp->mutex);
if (!file->file) {
return CELL_EBADF;
}
if (whence + 0u >= 3) {
return {CELL_EINVAL, whence};
}
const u64 result =
file->file.seek(offset, static_cast<fs::seek_mode>(whence));
if (result == umax) {
switch (auto error = fs::g_tls_error) {
case fs::error::inval:
return {CELL_EINVAL, "fd=%u, offset=0x%x, whence=%d", fd, offset, whence};
default:
sys_fs.error("sys_fs_lseek(): unknown error %s", error);
}
return CELL_EIO; // ???
}
lock.unlock();
ppu.check_state();
*pos = result;
return CELL_OK;
}
error_code sys_fs_fdatasync(ppu_thread &ppu, u32 fd) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.trace("sys_fs_fdadasync(fd=%d)", fd);
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file || !(file->flags & CELL_FS_O_ACCMODE)) {
return CELL_EBADF;
}
std::lock_guard lock(file->mp->mutex);
if (!file->file) {
return CELL_EBADF;
}
file->file.sync();
return CELL_OK;
}
error_code sys_fs_fsync(ppu_thread &ppu, u32 fd) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.trace("sys_fs_fsync(fd=%d)", fd);
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file || !(file->flags & CELL_FS_O_ACCMODE)) {
return CELL_EBADF;
}
std::lock_guard lock(file->mp->mutex);
if (!file->file) {
return CELL_EBADF;
}
file->file.sync();
return CELL_OK;
}
error_code sys_fs_fget_block_size(ppu_thread &ppu, u32 fd,
vm::ptr<u64> sector_size,
vm::ptr<u64> block_size, vm::ptr<u64> arg4,
vm::ptr<s32> out_flags) {
ppu.state += cpu_flag::wait;
sys_fs.warning("sys_fs_fget_block_size(fd=%d, sector_size=*0x%x, "
"block_size=*0x%x, arg4=*0x%x, out_flags=*0x%x)",
fd, sector_size, block_size, arg4, out_flags);
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file) {
return CELL_EBADF;
}
static_cast<void>(ppu.test_stopped());
// TODO
*sector_size = file->mp->sector_size;
*block_size = file->mp->block_size;
*arg4 = file->mp->sector_size;
*out_flags = file->flags;
return CELL_OK;
}
error_code sys_fs_get_block_size(ppu_thread &ppu, vm::cptr<char> path,
vm::ptr<u64> sector_size,
vm::ptr<u64> block_size, vm::ptr<u64> arg4) {
ppu.state += cpu_flag::wait;
sys_fs.warning("sys_fs_get_block_size(path=%s, sector_size=*0x%x, "
"block_size=*0x%x, arg4=*0x%x)",
path, sector_size, block_size, arg4);
const auto [path_error, vpath] = translate_to_str(path);
if (path_error) {
return {path_error, vpath};
}
const std::string local_path = vfs::get(vpath);
if (vpath.find_first_not_of('/') == umax) {
return {CELL_EISDIR, path};
}
if (local_path.empty()) {
return {CELL_ENOTMOUNTED, path};
}
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath);
// It appears that /dev_hdd0 mount point is special in this function
if (mp != &g_mp_sys_dev_hdd0 &&
(mp->flags & lv2_mp_flag::strict_get_block_size
? !fs::is_file(local_path)
: !fs::exists(local_path))) {
switch (auto error = fs::g_tls_error) {
case fs::error::exist:
return {CELL_EISDIR, path};
case fs::error::noent:
return {CELL_ENOENT, path};
default:
sys_fs.error("sys_fs_get_block_size(): unknown error %s", error);
}
return {CELL_EIO, path}; // ???
}
static_cast<void>(ppu.test_stopped());
// TODO
*sector_size = mp->sector_size;
*block_size = mp->block_size;
*arg4 = mp->sector_size;
return CELL_OK;
}
error_code sys_fs_truncate(ppu_thread &ppu, vm::cptr<char> path, u64 size) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_truncate(path=%s, size=0x%llx)", path, size);
const auto [path_error, vpath] = translate_to_str(path);
if (path_error) {
return {path_error, vpath};
}
const std::string local_path = vfs::get(vpath);
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath);
if (mp == &g_mp_sys_dev_root) {
return {CELL_EISDIR, path};
}
if (local_path.empty()) {
return {CELL_ENOTMOUNTED, path};
}
if (mp.read_only) {
return {CELL_EROFS, path};
}
std::lock_guard lock(mp->mutex);
if (!fs::truncate_file(local_path, size)) {
switch (auto error = fs::g_tls_error) {
case fs::error::noent: {
return {mp == &g_mp_sys_dev_hdd1 ? sys_fs.warning : sys_fs.error,
CELL_ENOENT, path};
}
default:
sys_fs.error("sys_fs_truncate(): unknown error %s", error);
}
return {CELL_EIO, path}; // ???
}
return CELL_OK;
}
error_code sys_fs_ftruncate(ppu_thread &ppu, u32 fd, u64 size) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_ftruncate(fd=%d, size=0x%llx)", fd, size);
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file || !(file->flags & CELL_FS_O_ACCMODE)) {
return CELL_EBADF;
}
if (file->mp.read_only) {
return CELL_EROFS;
}
std::lock_guard lock(file->mp->mutex);
if (!file->file) {
return CELL_EBADF;
}
if (file->lock == 2) {
return CELL_EIO;
}
if (file->lock) {
return CELL_EBUSY;
}
if (!file->file.trunc(size)) {
switch (auto error = fs::g_tls_error) {
case fs::error::ok:
default:
sys_fs.error("sys_fs_ftruncate(): unknown error %s", error);
}
return CELL_EIO; // ???
}
return CELL_OK;
}
error_code sys_fs_symbolic_link(ppu_thread &, vm::cptr<char> target,
vm::cptr<char> linkpath) {
sys_fs.todo("sys_fs_symbolic_link(target=%s, linkpath=%s)", target, linkpath);
return CELL_OK;
}
error_code sys_fs_chmod(ppu_thread &, vm::cptr<char> path, s32 mode) {
sys_fs.todo("sys_fs_chmod(path=%s, mode=%#o)", path, mode);
const auto [path_error, vpath] = translate_to_str(path);
if (path_error) {
return {path_error, vpath};
}
const std::string local_path = vfs::get(vpath);
const auto mp = lv2_fs_object::get_mp(vpath);
if (local_path.empty()) {
return {CELL_ENOTMOUNTED, path};
}
if (mp->flags & lv2_mp_flag::read_only) {
return {CELL_EROFS, path};
}
std::unique_lock lock(mp->mutex);
fs::stat_t info{};
if (!fs::get_stat(local_path, info)) {
switch (auto error = fs::g_tls_error) {
case fs::error::noent: {
// Try to locate split files
for (u32 i = 66601; i <= 66699; i++) {
if (!fs::get_stat(fmt::format("%s.%u", local_path, i), info) &&
!info.is_directory) {
break;
}
}
if (fs::get_stat(local_path + ".66600", info) && !info.is_directory) {
break;
}
return {CELL_ENOENT, path};
}
default: {
sys_fs.error("sys_fs_chmod(): unknown error %s", error);
return {CELL_EIO, path};
}
}
}
return CELL_OK;
}
error_code sys_fs_chown(ppu_thread &, vm::cptr<char> path, s32 uid, s32 gid) {
sys_fs.todo("sys_fs_chown(path=%s, uid=%d, gid=%d)", path, uid, gid);
return CELL_OK;
}
error_code sys_fs_disk_free(ppu_thread &ppu, vm::cptr<char> path,
vm::ptr<u64> total_free, vm::ptr<u64> avail_free) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_disk_free(path=%s total_free=*0x%x avail_free=*0x%x)",
path, total_free, avail_free);
if (!path)
return CELL_EFAULT;
if (!path[0])
return CELL_EINVAL;
const std::string_view vpath = path.get_ptr();
if (vpath == "/"sv) {
return CELL_ENOTSUP;
}
// It seems max length is 31, and multiple / at the start aren't supported
if (vpath.size() > CELL_FS_MAX_MP_LENGTH) {
return {CELL_ENAMETOOLONG, path};
}
if (vpath.find_first_not_of('/') != 1) {
return {CELL_EINVAL, path};
}
// Get only device path
const std::string local_path =
vfs::get(vpath.substr(0, vpath.find_first_of('/', 1)));
if (local_path.empty()) {
return {CELL_EINVAL, path};
}
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath);
if (mp->flags & lv2_mp_flag::strict_get_block_size) {
// TODO:
return {CELL_ENOTSUP, path};
}
if (mp.read_only) {
// TODO: check /dev_bdvd
ppu.check_state();
*total_free = 0;
*avail_free = 0;
return CELL_OK;
}
u64 available = 0;
// avail_free is the only value used by cellFsGetFreeSize
if (mp == &g_mp_sys_dev_hdd1) {
available =
(1u << 31) - mp->sector_size; // 2GB (TODO: Should be the total size)
} else // if (mp == &g_mp_sys_dev_hdd0)
{
available = (40ull * 1024 * 1024 * 1024 -
mp->sector_size); // Read explanation in cellHddGameCheck
}
// HACK: Hopefully nothing uses this value or once at max because its hacked
// here: The total size can change based on the size of the directory
const u64 total = available + fs::get_dir_size(local_path, mp->sector_size);
ppu.check_state();
*total_free = total;
*avail_free = available;
return CELL_OK;
}
error_code sys_fs_utime(ppu_thread &ppu, vm::cptr<char> path,
vm::cptr<CellFsUtimbuf> timep) {
ppu.state += cpu_flag::wait;
lv2_obj::sleep(ppu);
sys_fs.warning("sys_fs_utime(path=%s, timep=*0x%x)", path, timep);
sys_fs.warning("** actime=%u, modtime=%u", timep->actime, timep->modtime);
const auto [path_error, vpath] = translate_to_str(path);
if (path_error) {
return {path_error, vpath};
}
const std::string local_path = vfs::get(vpath);
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath);
if (mp == &g_mp_sys_dev_root) {
return {CELL_EISDIR, path};
}
if (local_path.empty()) {
return {CELL_ENOTMOUNTED, path};
}
if (mp.read_only) {
return {CELL_EROFS, path};
}
std::lock_guard lock(mp->mutex);
if (!fs::utime(local_path, timep->actime, timep->modtime)) {
switch (auto error = fs::g_tls_error) {
case fs::error::noent: {
return {mp == &g_mp_sys_dev_hdd1 ? sys_fs.warning : sys_fs.error,
CELL_ENOENT, path};
}
default:
sys_fs.error("sys_fs_utime(): unknown error %s", error);
}
return {CELL_EIO, path}; // ???
}
return CELL_OK;
}
error_code sys_fs_acl_read(ppu_thread &, vm::cptr<char> path,
vm::ptr<void> ptr) {
sys_fs.todo("sys_fs_acl_read(path=%s, ptr=*0x%x)", path, ptr);
return CELL_OK;
}
error_code sys_fs_acl_write(ppu_thread &, vm::cptr<char> path,
vm::ptr<void> ptr) {
sys_fs.todo("sys_fs_acl_write(path=%s, ptr=*0x%x)", path, ptr);
return CELL_OK;
}
error_code sys_fs_lsn_get_cda_size(ppu_thread &, u32 fd, vm::ptr<u64> ptr) {
sys_fs.warning("sys_fs_lsn_get_cda_size(fd=%d, ptr=*0x%x)", fd, ptr);
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file) {
return CELL_EBADF;
}
// TODO
*ptr = 0;
return CELL_OK;
}
error_code sys_fs_lsn_get_cda(ppu_thread &, u32 fd, vm::ptr<void> arg2,
u64 arg3, vm::ptr<u64> arg4) {
sys_fs.todo("sys_fs_lsn_get_cda(fd=%d, arg2=*0x%x, arg3=0x%x, arg4=*0x%x)",
fd, arg2, arg3, arg4);
return CELL_OK;
}
error_code sys_fs_lsn_lock(ppu_thread &, u32 fd) {
sys_fs.trace("sys_fs_lsn_lock(fd=%d)", fd);
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file) {
return CELL_EBADF;
}
// TODO: seems to do nothing on /dev_hdd0 or /host_root
if (file->mp == &g_mp_sys_dev_hdd0 ||
file->mp->flags & lv2_mp_flag::strict_get_block_size) {
return CELL_OK;
}
std::lock_guard lock(file->mp->mutex);
file->lock.compare_and_swap(0, 1);
return CELL_OK;
}
error_code sys_fs_lsn_unlock(ppu_thread &, u32 fd) {
sys_fs.trace("sys_fs_lsn_unlock(fd=%d)", fd);
const auto file = idm::get_unlocked<lv2_fs_object, lv2_file>(fd);
if (!file) {
return CELL_EBADF;
}
// See sys_fs_lsn_lock
if (file->mp == &g_mp_sys_dev_hdd0 ||
file->mp->flags & lv2_mp_flag::strict_get_block_size) {
return CELL_OK;
}
// Unlock unconditionally
std::lock_guard lock(file->mp->mutex);
file->lock.compare_and_swap(1, 0);
return CELL_OK;
}
error_code sys_fs_lsn_read(ppu_thread &, u32 fd, vm::cptr<void> ptr, u64 size) {
sys_fs.todo("sys_fs_lsn_read(fd=%d, ptr=*0x%x, size=0x%x)", fd, ptr, size);
return CELL_OK;
}
error_code sys_fs_lsn_write(ppu_thread &, u32 fd, vm::cptr<void> ptr,
u64 size) {
sys_fs.todo("sys_fs_lsn_write(fd=%d, ptr=*0x%x, size=0x%x)", fd, ptr, size);
return CELL_OK;
}
error_code sys_fs_mapped_allocate(ppu_thread &, u32 fd, u64 size,
vm::pptr<void> out_ptr) {
sys_fs.todo("sys_fs_mapped_allocate(fd=%d, arg2=0x%x, out_ptr=**0x%x)", fd,
size, out_ptr);
return CELL_OK;
}
error_code sys_fs_mapped_free(ppu_thread &, u32 fd, vm::ptr<void> ptr) {
sys_fs.todo("sys_fs_mapped_free(fd=%d, ptr=0x%#x)", fd, ptr);
return CELL_OK;
}
error_code sys_fs_truncate2(ppu_thread &, u32 fd, u64 size) {
sys_fs.todo("sys_fs_truncate2(fd=%d, size=0x%x)", fd, size);
return CELL_OK;
}
error_code sys_fs_get_mount_info_size(ppu_thread &, vm::ptr<u64> len) {
sys_fs.warning("sys_fs_get_mount_info_size(len=*0x%x)", len);
if (!len) {
return CELL_EFAULT;
}
*len = g_fxo->get<lv2_fs_mount_info_map>().get_all();
return CELL_OK;
}
error_code sys_fs_get_mount_info(ppu_thread &, vm::ptr<CellFsMountInfo> info,
u64 len, vm::ptr<u64> out_len) {
sys_fs.warning("sys_fs_get_mount_info(info=*0x%x, len=0x%x, out_len=*0x%x)",
info, len, out_len);
if (!info || !out_len) {
return CELL_EFAULT;
}
*out_len = g_fxo->get<lv2_fs_mount_info_map>().get_all(info.get_ptr(), len);
return CELL_OK;
}
error_code sys_fs_newfs(ppu_thread &ppu, vm::cptr<char> dev_name,
vm::cptr<char> file_system, s32 unk1,
vm::cptr<char> str1) {
ppu.state += cpu_flag::wait;
sys_fs.warning(
"sys_fs_newfs(dev_name=%s, file_system=%s, unk1=0x%x, str1=%s)", dev_name,
file_system, unk1, str1);
const auto [dev_error, device_name] = translate_to_str(dev_name, false);
if (dev_error) {
return {dev_error, device_name};
}
std::string vfs_path;
const auto mp = lv2_fs_object::get_mp(device_name, &vfs_path);
std::unique_lock lock(mp->mutex, std::defer_lock);
if (!g_ps3_process_info.has_root_perm() && mp != &g_mp_sys_dev_usb)
return {CELL_EPERM, device_name};
if (mp == &g_mp_sys_no_device)
return {CELL_ENXIO, device_name};
if (g_fxo->get<lv2_fs_mount_info_map>().is_device_mounted(device_name) ||
!lock.try_lock())
return {CELL_EBUSY, device_name};
if (vfs_path.empty())
return {CELL_ENOTSUP, device_name};
if (mp->flags & lv2_mp_flag::read_only)
return {CELL_EROFS, device_name};
if (mp == &g_mp_sys_dev_hdd1) {
const std::string_view appname = g_ps3_process_info.get_cellos_appname();
vfs_path = fmt::format("%s/caches/%s", vfs_path,
appname.substr(0, appname.find_last_of('.')));
}
if (!fs::remove_all(vfs_path, false)) {
sys_fs.error("sys_fs_newfs(): Failed to clear \"%s\" at \"%s\"",
device_name, vfs_path);
return {CELL_EIO, vfs_path};
}
sys_fs.success("sys_fs_newfs(): Successfully cleared \"%s\" at \"%s\"",
device_name, vfs_path);
return CELL_OK;
}
error_code sys_fs_mount(ppu_thread &ppu, vm::cptr<char> dev_name,
vm::cptr<char> file_system, vm::cptr<char> path,
s32 unk1, s32 prot, s32 unk2, vm::cptr<char> str1,
u32 str_len) {
ppu.state += cpu_flag::wait;
sys_fs.warning("sys_fs_mount(dev_name=%s, file_system=%s, path=%s, "
"unk1=0x%x, prot=%d, unk3=0x%x, str1=%s, str_len=%d)",
dev_name, file_system, path, unk1, prot, unk2, str1, str_len);
const auto [dev_error, device_name] = translate_to_str(dev_name, false);
if (dev_error) {
return {dev_error, device_name};
}
const auto [fs_error, filesystem] = translate_to_str(file_system, false);
if (fs_error) {
return {fs_error, filesystem};
}
const auto [path_error, path_sv] = translate_to_str(path);
if (path_error) {
return {path_error, path_sv};
}
const std::string vpath = lv2_fs_object::get_normalized_path(path_sv);
std::string vfs_path;
const auto mp = lv2_fs_object::get_mp(device_name, &vfs_path);
std::unique_lock lock(mp->mutex, std::defer_lock);
if (!g_ps3_process_info.has_root_perm() && mp != &g_mp_sys_dev_usb)
return {CELL_EPERM, device_name};
if (mp == &g_mp_sys_no_device)
return {CELL_ENXIO, device_name};
if (g_fxo->get<lv2_fs_mount_info_map>().is_device_mounted(device_name) ||
!lock.try_lock())
return {CELL_EBUSY, device_name};
if (vfs_path.empty())
return {CELL_ENOTSUP, device_name};
if (vpath.find_first_not_of('/') == umax || !vfs::get(vpath).empty())
return {CELL_EEXIST, vpath};
if (mp == &g_mp_sys_dev_hdd1) {
const std::string_view appname = g_ps3_process_info.get_cellos_appname();
vfs_path = fmt::format("%s/caches/%s", vfs_path,
appname.substr(0, appname.find_last_of('.')));
}
if (!vfs_path.ends_with('/'))
vfs_path += '/';
if (!fs::is_dir(vfs_path) && !fs::create_dir(vfs_path)) {
sys_fs.error("Failed to create directory \"%s\"", vfs_path);
return {CELL_EIO, vfs_path};
}
const bool is_simplefs = filesystem == "CELL_FS_SIMPLEFS"sv;
if (is_simplefs) {
vfs_path += "simplefs.tmp";
if (fs::file simplefs_file;
simplefs_file.open(vfs_path, fs::create + fs::read + fs::write +
fs::trunc + fs::lock)) {
const u64 file_size = mp->sector_size; // One sector's size is enough for
// VSH's simplefs check
simplefs_file.trunc(file_size);
sys_fs.notice("Created a simplefs file at \"%s\"", vfs_path);
} else {
sys_fs.error("Failed to create simplefs file \"%s\"", vfs_path);
return {CELL_EIO, vfs_path};
}
}
if (!vfs::mount(vpath, vfs_path, !is_simplefs)) {
if (is_simplefs) {
if (fs::remove_file(vfs_path)) {
sys_fs.notice("Removed simplefs file \"%s\"", vfs_path);
} else {
sys_fs.error("Failed to remove simplefs file \"%s\"", vfs_path);
}
}
return CELL_EIO;
}
g_fxo->get<lv2_fs_mount_info_map>().add(vpath, mp, device_name, filesystem,
prot);
return CELL_OK;
}
error_code sys_fs_unmount(ppu_thread &ppu, vm::cptr<char> path, s32 unk1,
s32 force) {
ppu.state += cpu_flag::wait;
sys_fs.warning("sys_fs_unmount(path=%s, unk1=0x%x, force=%d)", path, unk1,
force);
const auto [path_error, vpath] = translate_to_str(path);
if (path_error) {
return {path_error, vpath};
}
const auto &mp = g_fxo->get<lv2_fs_mount_info_map>().lookup(vpath);
std::unique_lock lock(mp->mutex, std::defer_lock);
if (!g_ps3_process_info.has_root_perm() && mp != &g_mp_sys_dev_usb)
return {CELL_EPERM, vpath};
if (mp == &g_mp_sys_no_device)
return {CELL_EINVAL, vpath};
if (mp == &g_mp_sys_dev_root || (!lock.try_lock() && !force))
return {CELL_EBUSY, vpath};
if (!lv2_fs_mount_info_map::vfs_unmount(vpath))
return {CELL_EIO, vpath};
return CELL_OK;
}
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