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