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sys_fs.h
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sys_fs.h
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#pragma once
#include "Emu/Memory/vm_ptr.h"
#include "Emu/Cell/ErrorCodes.h"
#include "Utilities/File.h"
#include "Utilities/mutex.h"
#include <string>
// Open Flags
enum : s32
{
CELL_FS_O_RDONLY = 000000,
CELL_FS_O_WRONLY = 000001,
CELL_FS_O_RDWR = 000002,
CELL_FS_O_ACCMODE = 000003,
CELL_FS_O_CREAT = 000100,
CELL_FS_O_EXCL = 000200,
CELL_FS_O_TRUNC = 001000,
CELL_FS_O_APPEND = 002000,
CELL_FS_O_MSELF = 010000,
CELL_FS_O_UNK = 01000000, // Tests have shown this is independent of other flags. Only known to be called in Rockband games.
};
// Seek Mode
enum : s32
{
CELL_FS_SEEK_SET,
CELL_FS_SEEK_CUR,
CELL_FS_SEEK_END,
};
enum : s32
{
CELL_FS_MAX_FS_PATH_LENGTH = 1024,
CELL_FS_MAX_FS_FILE_NAME_LENGTH = 255,
CELL_FS_MAX_MP_LENGTH = 31,
};
enum : s32
{
CELL_FS_S_IFMT = 0170000,
CELL_FS_S_IFDIR = 0040000, // directory
CELL_FS_S_IFREG = 0100000, // regular
CELL_FS_S_IFLNK = 0120000, // symbolic link
CELL_FS_S_IFWHT = 0160000, // unknown
CELL_FS_S_IRUSR = 0000400, // R for owner
CELL_FS_S_IWUSR = 0000200, // W for owner
CELL_FS_S_IXUSR = 0000100, // X for owner
CELL_FS_S_IRGRP = 0000040, // R for group
CELL_FS_S_IWGRP = 0000020, // W for group
CELL_FS_S_IXGRP = 0000010, // X for group
CELL_FS_S_IROTH = 0000004, // R for other
CELL_FS_S_IWOTH = 0000002, // W for other
CELL_FS_S_IXOTH = 0000001, // X for other
};
// CellFsDirent.d_type
enum : u8
{
CELL_FS_TYPE_UNKNOWN = 0,
CELL_FS_TYPE_DIRECTORY = 1,
CELL_FS_TYPE_REGULAR = 2,
CELL_FS_TYPE_SYMLINK = 3,
};
struct CellFsDirent
{
u8 d_type;
u8 d_namlen;
char d_name[256];
};
struct CellFsStat
{
be_t<s32> mode;
be_t<s32> uid;
be_t<s32> gid;
be_t<s64, 4> atime;
be_t<s64, 4> mtime;
be_t<s64, 4> ctime;
be_t<u64, 4> size;
be_t<u64, 4> blksize;
};
CHECK_SIZE_ALIGN(CellFsStat, 52, 4);
struct CellFsDirectoryEntry
{
CellFsStat attribute;
CellFsDirent entry_name;
};
struct CellFsUtimbuf
{
be_t<s64, 4> actime;
be_t<s64, 4> modtime;
};
CHECK_SIZE_ALIGN(CellFsUtimbuf, 16, 4);
// MSelf file structs
struct FsMselfHeader
{
be_t<u32> m_magic;
be_t<u32> m_format_version;
be_t<u64> m_file_size;
be_t<u32> m_entry_num;
be_t<u32> m_entry_size;
u8 m_reserve[40];
};
struct FsMselfEntry
{
char m_name[32];
be_t<u64> m_offset;
be_t<u64> m_size;
u8 m_reserve[16];
};
enum class lv2_mp_flag
{
read_only,
no_uid_gid,
strict_get_block_size,
__bitset_enum_max
};
enum class lv2_file_type
{
regular = 0,
npdrm,
};
struct lv2_fs_mount_point
{
const u32 sector_size = 512;
const u32 block_size = 4096;
const bs_t<lv2_mp_flag> flags{};
shared_mutex mutex;
};
struct lv2_fs_object
{
using id_type = lv2_fs_object;
static const u32 id_base = 3;
static const u32 id_step = 1;
static const u32 id_count = 255 - id_base;
// Mount Point
const std::add_pointer_t<lv2_fs_mount_point> mp;
// File Name (max 1055)
const std::array<char, 0x420> name;
lv2_fs_object(lv2_fs_mount_point* mp, std::string_view filename)
: mp(mp)
, name(get_name(filename))
{
}
static lv2_fs_mount_point* get_mp(std::string_view filename);
static std::array<char, 0x420> get_name(std::string_view filename)
{
std::array<char, 0x420> name;
if (filename.size() >= 0x420)
{
filename = filename.substr(0, 0x420 - 1);
}
filename.copy(name.data(), filename.size());
name[filename.size()] = 0;
return name;
}
};
struct lv2_file final : lv2_fs_object
{
const fs::file file;
const s32 mode;
const s32 flags;
const lv2_file_type type;
// Stream lock
atomic_t<u32> lock{0};
lv2_file(std::string_view filename, fs::file&& file, s32 mode, s32 flags, lv2_file_type type = {})
: lv2_fs_object(lv2_fs_object::get_mp(filename), filename)
, file(std::move(file))
, mode(mode)
, flags(flags)
, type(type)
{
}
lv2_file(const lv2_file& host, fs::file&& file, s32 mode, s32 flags, lv2_file_type type = {})
: lv2_fs_object(host.mp, host.name.data())
, file(std::move(file))
, mode(mode)
, flags(flags)
, type(type)
{
}
struct open_result_t
{
CellError error;
std::string ppath;
fs::file file;
};
// Open a file with wrapped logic of sys_fs_open
static open_result_t open(std::string_view path, s32 flags, s32 mode, const void* arg = {}, u64 size = 0);
// File reading with intermediate buffer
static u64 op_read(const fs::file& file, vm::ptr<void> buf, u64 size);
u64 op_read(vm::ptr<void> buf, u64 size)
{
return op_read(file, buf, size);
}
// File writing with intermediate buffer
static u64 op_write(const fs::file& file, vm::cptr<void> buf, u64 size);
u64 op_write(vm::cptr<void> buf, u64 size)
{
return op_write(file, buf, size);
}
// For MSELF support
struct file_view;
// Make file view from lv2_file object (for MSELF support)
static fs::file make_view(const std::shared_ptr<lv2_file>& _file, u64 offset);
};
struct lv2_dir final : lv2_fs_object
{
const std::vector<fs::dir_entry> entries;
// Current reading position
atomic_t<u64> pos{0};
lv2_dir(std::string_view filename, std::vector<fs::dir_entry>&& entries)
: lv2_fs_object(lv2_fs_object::get_mp(filename), filename)
, entries(std::move(entries))
{
}
// Read next
const fs::dir_entry* dir_read()
{
if (const u64 cur = pos++; cur < entries.size())
{
return &entries[cur];
}
return nullptr;
}
};
// sys_fs_fcntl arg base class (left empty for PODness)
struct lv2_file_op
{
};
namespace vtable
{
struct lv2_file_op
{
// Speculation
vm::bptrb<vm::ptrb<void>(vm::ptrb<lv2_file_op>)> get_data;
vm::bptrb<u32(vm::ptrb<lv2_file_op>)> get_size;
vm::bptrb<void(vm::ptrb<lv2_file_op>)> _dtor1;
vm::bptrb<void(vm::ptrb<lv2_file_op>)> _dtor2;
};
}
// sys_fs_fcntl: read with offset, write with offset
struct lv2_file_op_rw : lv2_file_op
{
vm::bptrb<vtable::lv2_file_op> _vtable;
be_t<u32> op;
be_t<u32> _x8; // ???
be_t<u32> _xc; // ???
be_t<u32> fd; // File descriptor (3..255)
vm::bptrb<void> buf; // Buffer for data
be_t<u64> offset; // File offset
be_t<u64> size; // Access size
be_t<s32> out_code; // Op result
be_t<u64> out_size; // Size processed
};
CHECK_SIZE(lv2_file_op_rw, 0x38);
// sys_fs_fcntl: cellFsSdataOpenByFd
struct lv2_file_op_09 : lv2_file_op
{
vm::bptrb<vtable::lv2_file_op> _vtable;
be_t<u32> op;
be_t<u32> _x8;
be_t<u32> _xc;
be_t<u32> fd;
be_t<u64> offset;
be_t<u32> _vtabl2;
be_t<u32> arg1; // 0x180
be_t<u32> arg2; // 0x10
be_t<u32> arg_size; // 6th arg
be_t<u32> arg_ptr; // 5th arg
be_t<u32> _x34;
be_t<s32> out_code;
be_t<u32> out_fd;
};
CHECK_SIZE(lv2_file_op_09, 0x40);
// sys_fs_fnctl: cellFsGetDirectoryEntries
struct lv2_file_op_dir : lv2_file_op
{
struct dir_info : lv2_file_op
{
be_t<s32> _code; // Op result
be_t<u32> _size; // Number of entries written
vm::bptrb<CellFsDirectoryEntry> ptr;
be_t<u32> max;
};
CHECK_SIZE(dir_info, 0x10);
vm::bptrb<vtable::lv2_file_op> _vtable;
be_t<u32> op;
be_t<u32> _x8;
dir_info arg;
};
CHECK_SIZE(lv2_file_op_dir, 0x1c);
// sys_fs_fcntl: cellFsGetFreeSize (for dev_hdd0)
struct lv2_file_c0000002 : lv2_file_op
{
vm::bptrb<vtable::lv2_file_op> _vtable;
be_t<u32> op;
be_t<u32> _x8;
vm::bcptr<char> path;
be_t<u32> _x10; // 0
be_t<u32> _x14;
be_t<u32> out_code; // CELL_ENOSYS
be_t<u32> out_block_size;
be_t<u64> out_block_count;
};
CHECK_SIZE(lv2_file_c0000002, 0x28);
// sys_fs_fcntl: unknown (called before cellFsOpen, for example)
struct lv2_file_c0000006 : lv2_file_op
{
be_t<u32> size; // 0x20
be_t<u32> _x4; // 0x10
be_t<u32> _x8; // 0x18 - offset of out_code
be_t<u32> name_size;
vm::bcptr<char> name;
be_t<u32> _x14; // 0
be_t<u32> out_code; // 0x80010003
be_t<u32> out_id; // set to 0, may return 0x1b5
};
CHECK_SIZE(lv2_file_c0000006, 0x20);
// sys_fs_fcntl: cellFsAllocateFileAreaWithoutZeroFill
struct lv2_file_e0000017 : lv2_file_op
{
be_t<u32> size; // 0x28
be_t<u32> _x4; // 0x10, offset
be_t<u32> _x8; // 0x20, offset
be_t<u32> _xc; // -
vm::bcptr<char> file_path;
be_t<u64> file_size;
be_t<u32> out_code;
};
CHECK_SIZE(lv2_file_e0000017, 0x28);
struct CellFsMountInfo
{
char mount_path[0x20]; // 0x0
char filesystem[0x20]; // 0x20
char dev_name[0x40]; // 0x40
be_t<u32> unk1; // 0x80
be_t<u32> unk2; // 0x84
be_t<u32> unk3; // 0x88
be_t<u32> unk4; // 0x8C
be_t<u32> unk5; // 0x90
};
CHECK_SIZE(CellFsMountInfo, 0x94);
// Syscalls
error_code sys_fs_test(ppu_thread& ppu, u32 arg1, u32 arg2, vm::ptr<u32> arg3, u32 arg4, vm::ptr<char> buf, u32 buf_size);
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);
error_code sys_fs_read(ppu_thread& ppu, u32 fd, vm::ptr<void> buf, u64 nbytes, vm::ptr<u64> nread);
error_code sys_fs_write(ppu_thread& ppu, u32 fd, vm::cptr<void> buf, u64 nbytes, vm::ptr<u64> nwrite);
error_code sys_fs_close(ppu_thread& ppu, u32 fd);
error_code sys_fs_opendir(ppu_thread& ppu, vm::cptr<char> path, vm::ptr<u32> fd);
error_code sys_fs_readdir(ppu_thread& ppu, u32 fd, vm::ptr<CellFsDirent> dir, vm::ptr<u64> nread);
error_code sys_fs_closedir(ppu_thread& ppu, u32 fd);
error_code sys_fs_stat(ppu_thread& ppu, vm::cptr<char> path, vm::ptr<CellFsStat> sb);
error_code sys_fs_fstat(ppu_thread& ppu, u32 fd, vm::ptr<CellFsStat> sb);
error_code sys_fs_link(ppu_thread& ppu, vm::cptr<char> from, vm::cptr<char> to);
error_code sys_fs_mkdir(ppu_thread& ppu, vm::cptr<char> path, s32 mode);
error_code sys_fs_rename(ppu_thread& ppu, vm::cptr<char> from, vm::cptr<char> to);
error_code sys_fs_rmdir(ppu_thread& ppu, vm::cptr<char> path);
error_code sys_fs_unlink(ppu_thread& ppu, vm::cptr<char> path);
error_code sys_fs_access(ppu_thread& ppu, vm::cptr<char> path, s32 mode);
error_code sys_fs_fcntl(ppu_thread& ppu, u32 fd, u32 op, vm::ptr<void> arg, u32 size);
error_code sys_fs_lseek(ppu_thread& ppu, u32 fd, s64 offset, s32 whence, vm::ptr<u64> pos);
error_code sys_fs_fdatasync(ppu_thread& ppu, u32 fd);
error_code sys_fs_fsync(ppu_thread& ppu, u32 fd);
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);
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);
error_code sys_fs_truncate(ppu_thread& ppu, vm::cptr<char> path, u64 size);
error_code sys_fs_ftruncate(ppu_thread& ppu, u32 fd, u64 size);
error_code sys_fs_symbolic_link(ppu_thread& ppu, vm::cptr<char> target, vm::cptr<char> linkpath);
error_code sys_fs_chmod(ppu_thread& ppu, vm::cptr<char> path, s32 mode);
error_code sys_fs_chown(ppu_thread& ppu, vm::cptr<char> path, s32 uid, s32 gid);
error_code sys_fs_disk_free(ppu_thread& ppu, vm::cptr<char> path, vm::ptr<u64> total_free, vm::ptr<u64> avail_free);
error_code sys_fs_utime(ppu_thread& ppu, vm::cptr<char> path, vm::cptr<CellFsUtimbuf> timep);
error_code sys_fs_acl_read(ppu_thread& ppu, vm::cptr<char> path, vm::ptr<void>);
error_code sys_fs_acl_write(ppu_thread& ppu, vm::cptr<char> path, vm::ptr<void>);
error_code sys_fs_lsn_get_cda_size(ppu_thread& ppu, u32 fd, vm::ptr<u64> ptr);
error_code sys_fs_lsn_get_cda(ppu_thread& ppu, u32 fd, vm::ptr<void>, u64, vm::ptr<u64>);
error_code sys_fs_lsn_lock(ppu_thread& ppu, u32 fd);
error_code sys_fs_lsn_unlock(ppu_thread& ppu, u32 fd);
error_code sys_fs_lsn_read(ppu_thread& ppu, u32 fd, vm::cptr<void>, u64);
error_code sys_fs_lsn_write(ppu_thread& ppu, u32 fd, vm::cptr<void>, u64);
error_code sys_fs_mapped_allocate(ppu_thread& ppu, u32 fd, u64, vm::pptr<void> out_ptr);
error_code sys_fs_mapped_free(ppu_thread& ppu, u32 fd, vm::ptr<void> ptr);
error_code sys_fs_truncate2(ppu_thread& ppu, u32 fd, u64 size);
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 unk3, vm::cptr<char> str1, u32 str_len);
error_code sys_fs_get_mount_info_size(ppu_thread& ppu, vm::ptr<u64> len);
error_code sys_fs_get_mount_info(ppu_thread& ppu, vm::ptr<CellFsMountInfo> info, u32 len, vm::ptr<u64> out_len);