74 lines
1.3 KiB
C
74 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) Crackerjack Project., 2007
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* Ported from Crackerjack to LTP by Manas Kumar Nayak maknayak@in.ibm.com>
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*/
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/*\
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* [Description]
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*
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* Basic tests for the unshare() errors.
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*
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* - EINVAL on invalid flags
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* - EPERM when process is missing required privileges
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*/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <sys/wait.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/syscall.h>
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#include <sched.h>
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#include <limits.h>
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#include <unistd.h>
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#include <pwd.h>
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#include "tst_test.h"
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#include "config.h"
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#ifdef HAVE_UNSHARE
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static uid_t nobody_uid;
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static struct test_case_t {
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int mode;
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int expected_error;
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const char *desc;
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} tc[] = {
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{-1, EINVAL, "-1"},
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{CLONE_NEWNS, EPERM, "CLONE_NEWNS"}
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};
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static void run(unsigned int i)
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{
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pid_t pid = SAFE_FORK();
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if (pid == 0) {
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if (tc[i].expected_error == EPERM)
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SAFE_SETUID(nobody_uid);
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TST_EXP_FAIL(unshare(tc[i].mode), tc[i].expected_error,
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"unshare(%s)", tc[i].desc);
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}
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}
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static void setup(void)
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{
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struct passwd *ltpuser = SAFE_GETPWNAM("nobody");
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nobody_uid = ltpuser->pw_uid;
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}
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static struct tst_test test = {
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.tcnt = ARRAY_SIZE(tc),
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.forks_child = 1,
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.needs_tmpdir = 1,
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.needs_root = 1,
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.setup = setup,
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.test = run,
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};
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#else
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TST_TEST_TCONF("unshare is undefined.");
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#endif
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