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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Process.h>
namespace Kernel {
ErrorOr<FlatPtr> Process::sys$getuid()
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio));
auto credentials = this->credentials();
return credentials->uid().value();
}
ErrorOr<FlatPtr> Process::sys$getgid()
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio));
auto credentials = this->credentials();
return credentials->gid().value();
}
ErrorOr<FlatPtr> Process::sys$geteuid()
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio));
auto credentials = this->credentials();
return credentials->euid().value();
}
ErrorOr<FlatPtr> Process::sys$getegid()
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio));
auto credentials = this->credentials();
return credentials->egid().value();
}
ErrorOr<FlatPtr> Process::sys$getresuid(Userspace<UserID*> user_ruid, Userspace<UserID*> user_euid, Userspace<UserID*> user_suid)
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio));
auto credentials = this->credentials();
auto uid = credentials->uid();
auto euid = credentials->euid();
auto suid = credentials->suid();
TRY(copy_to_user(user_ruid, &uid));
TRY(copy_to_user(user_euid, &euid));
TRY(copy_to_user(user_suid, &suid));
return 0;
}
ErrorOr<FlatPtr> Process::sys$getresgid(Userspace<GroupID*> user_rgid, Userspace<GroupID*> user_egid, Userspace<GroupID*> user_sgid)
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio));
auto credentials = this->credentials();
auto gid = credentials->gid();
auto egid = credentials->egid();
auto sgid = credentials->sgid();
TRY(copy_to_user(user_rgid, &gid));
TRY(copy_to_user(user_egid, &egid));
TRY(copy_to_user(user_sgid, &sgid));
return 0;
}
ErrorOr<FlatPtr> Process::sys$getgroups(size_t count, Userspace<GroupID*> user_gids)
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio));
auto credentials = this->credentials();
if (!count)
return credentials->extra_gids().size();
if (count != credentials->extra_gids().size())
return EINVAL;
TRY(copy_to_user(user_gids, credentials->extra_gids().data(), sizeof(GroupID) * count));
return 0;
}
}
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