1*49cdfc7eSAndroid Build Coastguard Worker /*
2*49cdfc7eSAndroid Build Coastguard Worker * Copyright (C) International Business Machines Corp., 2001
3*49cdfc7eSAndroid Build Coastguard Worker * Ported by Wayne Boyer
4*49cdfc7eSAndroid Build Coastguard Worker * Adapted by Dustin Kirkland ([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 setfsuid() correctly updates the filesystem uid
12*49cdfc7eSAndroid Build Coastguard Worker * when caller is a non-root user and provided fsuid matches
13*49cdfc7eSAndroid Build Coastguard Worker * caller's real user ID.
14*49cdfc7eSAndroid Build Coastguard Worker */
15*49cdfc7eSAndroid Build Coastguard Worker
16*49cdfc7eSAndroid Build Coastguard Worker #include <pwd.h>
17*49cdfc7eSAndroid Build Coastguard Worker
18*49cdfc7eSAndroid Build Coastguard Worker #include "tst_test.h"
19*49cdfc7eSAndroid Build Coastguard Worker #include "compat_tst_16.h"
20*49cdfc7eSAndroid Build Coastguard Worker
21*49cdfc7eSAndroid Build Coastguard Worker static uid_t nobody_uid;
22*49cdfc7eSAndroid Build Coastguard Worker
setup(void)23*49cdfc7eSAndroid Build Coastguard Worker static void setup(void)
24*49cdfc7eSAndroid Build Coastguard Worker {
25*49cdfc7eSAndroid Build Coastguard Worker struct passwd *nobody;
26*49cdfc7eSAndroid Build Coastguard Worker
27*49cdfc7eSAndroid Build Coastguard Worker nobody = SAFE_GETPWNAM("nobody");
28*49cdfc7eSAndroid Build Coastguard Worker nobody_uid = nobody->pw_uid;
29*49cdfc7eSAndroid Build Coastguard Worker }
30*49cdfc7eSAndroid Build Coastguard Worker
run(void)31*49cdfc7eSAndroid Build Coastguard Worker static void run(void)
32*49cdfc7eSAndroid Build Coastguard Worker {
33*49cdfc7eSAndroid Build Coastguard Worker uid_t ruid, euid, suid;
34*49cdfc7eSAndroid Build Coastguard Worker
35*49cdfc7eSAndroid Build Coastguard Worker SAFE_GETRESUID(&ruid, &euid, &suid);
36*49cdfc7eSAndroid Build Coastguard Worker SAFE_SETEUID(nobody_uid);
37*49cdfc7eSAndroid Build Coastguard Worker UID16_CHECK(ruid, setfsuid);
38*49cdfc7eSAndroid Build Coastguard Worker
39*49cdfc7eSAndroid Build Coastguard Worker TST_EXP_VAL_SILENT(SETFSUID(ruid), nobody_uid);
40*49cdfc7eSAndroid Build Coastguard Worker TST_EXP_VAL(SETFSUID(-1), ruid, "setfsuid(fsuid) by non-root user:");
41*49cdfc7eSAndroid Build Coastguard Worker }
42*49cdfc7eSAndroid Build Coastguard Worker
43*49cdfc7eSAndroid Build Coastguard Worker static struct tst_test test = {
44*49cdfc7eSAndroid Build Coastguard Worker .needs_root = 1,
45*49cdfc7eSAndroid Build Coastguard Worker .setup = setup,
46*49cdfc7eSAndroid Build Coastguard Worker .test_all = run
47*49cdfc7eSAndroid Build Coastguard Worker };
48