1*49cdfc7eSAndroid Build Coastguard Worker // SPDX-License-Identifier: GPL-2.0-or-later 2*49cdfc7eSAndroid Build Coastguard Worker /* 3*49cdfc7eSAndroid Build Coastguard Worker * Copyright (c) 2014 Fujitsu Ltd. 4*49cdfc7eSAndroid Build Coastguard Worker * Author: Zeng Linggang <[email protected]> 5*49cdfc7eSAndroid Build Coastguard Worker * Copyright (c) 2022 SUSE LLC Avinesh Kumar <[email protected]> 6*49cdfc7eSAndroid Build Coastguard Worker */ 7*49cdfc7eSAndroid Build Coastguard Worker 8*49cdfc7eSAndroid Build Coastguard Worker /*\ 9*49cdfc7eSAndroid Build Coastguard Worker * [Description] 10*49cdfc7eSAndroid Build Coastguard Worker * 11*49cdfc7eSAndroid Build Coastguard Worker * Verify that setegid() fails with EPERM when the calling process is not 12*49cdfc7eSAndroid Build Coastguard Worker * privileged and egid does not match the current real group ID, 13*49cdfc7eSAndroid Build Coastguard Worker * current effective group ID, or current saved set-group-ID. 14*49cdfc7eSAndroid Build Coastguard Worker */ 15*49cdfc7eSAndroid Build Coastguard Worker 16*49cdfc7eSAndroid Build Coastguard Worker #include <pwd.h> 17*49cdfc7eSAndroid Build Coastguard Worker #include "tst_test.h" 18*49cdfc7eSAndroid Build Coastguard Worker 19*49cdfc7eSAndroid Build Coastguard Worker static struct passwd *ltpuser; 20*49cdfc7eSAndroid Build Coastguard Worker setup(void)21*49cdfc7eSAndroid Build Coastguard Workerstatic void setup(void) 22*49cdfc7eSAndroid Build Coastguard Worker { 23*49cdfc7eSAndroid Build Coastguard Worker ltpuser = SAFE_GETPWNAM("nobody"); 24*49cdfc7eSAndroid Build Coastguard Worker SAFE_SETEUID(ltpuser->pw_uid); 25*49cdfc7eSAndroid Build Coastguard Worker } 26*49cdfc7eSAndroid Build Coastguard Worker setegid_verify(void)27*49cdfc7eSAndroid Build Coastguard Workerstatic void setegid_verify(void) 28*49cdfc7eSAndroid Build Coastguard Worker { 29*49cdfc7eSAndroid Build Coastguard Worker TST_EXP_FAIL(setegid(ltpuser->pw_gid), 30*49cdfc7eSAndroid Build Coastguard Worker EPERM, 31*49cdfc7eSAndroid Build Coastguard Worker "setegid(%d)", 32*49cdfc7eSAndroid Build Coastguard Worker ltpuser->pw_gid); 33*49cdfc7eSAndroid Build Coastguard Worker } 34*49cdfc7eSAndroid Build Coastguard Worker 35*49cdfc7eSAndroid Build Coastguard Worker static struct tst_test test = { 36*49cdfc7eSAndroid Build Coastguard Worker .setup = setup, 37*49cdfc7eSAndroid Build Coastguard Worker .test_all = setegid_verify, 38*49cdfc7eSAndroid Build Coastguard Worker .needs_root = 1 39*49cdfc7eSAndroid Build Coastguard Worker }; 40