77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2001
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* 07/2001 ported by John George
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* Copyright (C) 2021 SUSE LLC <mdoucha@suse.cz>
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*/
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/*\
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* [Description]
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*
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* Test that the setresuid system call sets the proper errno values when
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* a non-root user attempts to change the real, effective or saved uid
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* to a value other than one of the current uid, the current effective uid
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* or the current saved uid.
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*/
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#include "tst_test.h"
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#include "tst_uid.h"
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#include "compat_tst_16.h"
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static uid_t root_uid, main_uid, other_uid, neg_one = -1;
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static struct test_data_t {
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uid_t *real_uid;
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uid_t *eff_uid;
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uid_t *sav_uid;
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int exp_errno;
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uid_t *exp_real_uid;
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uid_t *exp_eff_uid;
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uid_t *exp_sav_uid;
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char *test_msg;
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} test_data[] = {
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{&other_uid, &neg_one, &neg_one, EPERM, &root_uid, &main_uid,
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&main_uid, "setresuid(other, -1, -1)"},
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{&neg_one, &neg_one, &other_uid, EPERM, &root_uid, &main_uid,
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&main_uid, "setresuid(-1, -1, other)"},
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{&neg_one, &other_uid, &neg_one, EPERM, &root_uid, &main_uid,
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&main_uid, "setresuid(-1, other, -1)"}
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};
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static void setup(void)
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{
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uid_t test_users[2];
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root_uid = getuid();
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tst_get_uids(test_users, 0, 2);
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main_uid = test_users[0];
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other_uid = test_users[1];
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UID16_CHECK(root_uid, setresuid);
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UID16_CHECK(main_uid, setresuid);
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UID16_CHECK(other_uid, setresuid);
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SAFE_SETRESUID(root_uid, main_uid, main_uid);
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}
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static void run(unsigned int n)
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{
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const struct test_data_t *tc = test_data + n;
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TST_EXP_FAIL(SETRESUID(*tc->real_uid, *tc->eff_uid, *tc->sav_uid),
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tc->exp_errno, "%s", tc->test_msg);
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if (!TST_PASS)
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return;
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tst_check_resuid(tc->test_msg, *tc->exp_real_uid, *tc->exp_eff_uid,
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*tc->exp_sav_uid);
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}
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static struct tst_test test = {
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.test = run,
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.tcnt = ARRAY_SIZE(test_data),
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.setup = setup,
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.needs_root = 1,
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};
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