mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-07-29 20:29:18 +00:00
c3351d4b9f
Instead of getting credentials from Process::current(), we now require that they be provided as input to the various VFS functions. This ensures that an atomic set of credentials is used throughout an entire VFS operation.
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/RefPtr.h>
|
|
#include <Kernel/FileSystem/Custody.h>
|
|
#include <Kernel/FileSystem/OpenFileDescription.h>
|
|
#include <Kernel/Library/NonnullLockRefPtrVector.h>
|
|
#include <Kernel/Process.h>
|
|
|
|
namespace Kernel {
|
|
|
|
ErrorOr<FlatPtr> Process::sys$fchown(int fd, UserID uid, GroupID gid)
|
|
{
|
|
VERIFY_NO_PROCESS_BIG_LOCK(this);
|
|
TRY(require_promise(Pledge::chown));
|
|
auto description = TRY(open_file_description(fd));
|
|
TRY(description->chown(uid, gid));
|
|
return 0;
|
|
}
|
|
|
|
ErrorOr<FlatPtr> Process::sys$chown(Userspace<Syscall::SC_chown_params const*> user_params)
|
|
{
|
|
VERIFY_NO_PROCESS_BIG_LOCK(this);
|
|
TRY(require_promise(Pledge::chown));
|
|
auto params = TRY(copy_typed_from_user(user_params));
|
|
auto path = TRY(get_syscall_path_argument(params.path));
|
|
|
|
RefPtr<Custody> base;
|
|
if (params.dirfd == AT_FDCWD) {
|
|
base = current_directory();
|
|
} else {
|
|
auto base_description = TRY(open_file_description(params.dirfd));
|
|
if (!base_description->custody())
|
|
return EINVAL;
|
|
base = base_description->custody();
|
|
}
|
|
|
|
TRY(VirtualFileSystem::the().chown(credentials(), path->view(), params.uid, params.gid, *base, params.follow_symlinks ? 0 : O_NOFOLLOW_NOERROR));
|
|
return 0;
|
|
}
|
|
|
|
}
|