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sys_fs: adjust permissions for /dev_bdvd

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Remove write permissions returned by stat, fstat, etc.
Also make sys_fs_open return CELL_EPERM on write attempt.
This commit is contained in:
Nekotekina 2020-01-11 04:48:42 +03:00
commit aeed349a99
1 changed files with 26 additions and 0 deletions
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26
rpcs3/Emu/Cell/lv2/sys_fs.cpp
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@ -251,6 +251,14 @@ error_code sys_fs_open(ppu_thread& ppu, vm::cptr<char> path, s32 flags, vm::ptr<
case CELL_FS_O_RDWR: open_mode += fs::read + fs::write; break; case CELL_FS_O_RDWR: open_mode += fs::read + fs::write; break;
} }
if (mp->flags & lv2_mp_flag::read_only)
{
if (flags & CELL_FS_O_ACCMODE || flags & (CELL_FS_O_CREAT | CELL_FS_O_TRUNC))
{
return {CELL_EPERM, path};
}
}
if (flags & CELL_FS_O_CREAT) if (flags & CELL_FS_O_CREAT)
{ {
open_mode += fs::create; open_mode += fs::create;
@ -771,6 +779,12 @@ error_code sys_fs_stat(ppu_thread& ppu, vm::cptr<char> path, vm::ptr<CellFsStat>
sb->size = info.size; sb->size = info.size;
sb->blksize = mp->block_size; sb->blksize = mp->block_size;
if (mp->flags & lv2_mp_flag::read_only)
{
// Remove write permissions
sb->mode &= ~0222;
}
return CELL_OK; return CELL_OK;
} }
@ -805,6 +819,12 @@ error_code sys_fs_fstat(ppu_thread& ppu, u32 fd, vm::ptr<CellFsStat> sb)
sb->size = info.size; sb->size = info.size;
sb->blksize = file->mp->block_size; sb->blksize = file->mp->block_size;
if (file->mp->flags & lv2_mp_flag::read_only)
{
// Remove write permissions
sb->mode &= ~0222;
}
return CELL_OK; return CELL_OK;
} }
@ -1339,6 +1359,12 @@ error_code sys_fs_fcntl(ppu_thread& ppu, u32 fd, u32 op, vm::ptr<void> _arg, u32
entry.attribute.size = info->size; entry.attribute.size = info->size;
entry.attribute.blksize = directory->mp->block_size; entry.attribute.blksize = directory->mp->block_size;
if (directory->mp->flags & lv2_mp_flag::read_only)
{
// Remove write permissions
entry.attribute.mode &= ~0222;
}
entry.entry_name.d_type = info->is_directory ? CELL_FS_TYPE_DIRECTORY : CELL_FS_TYPE_REGULAR; entry.entry_name.d_type = info->is_directory ? CELL_FS_TYPE_DIRECTORY : CELL_FS_TYPE_REGULAR;
entry.entry_name.d_namlen = u8(std::min<size_t>(info->name.size(), CELL_FS_MAX_FS_FILE_NAME_LENGTH)); entry.entry_name.d_namlen = u8(std::min<size_t>(info->name.size(), CELL_FS_MAX_FS_FILE_NAME_LENGTH));
strcpy_trunc(entry.entry_name.d_name, info->name); strcpy_trunc(entry.entry_name.d_name, info->name);