61 lines
1.1 KiB
C
61 lines
1.1 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() syscall.
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*
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* [Algorithm]
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*
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* Calls unshare() for different CLONE_* flags in a child process and expects
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* them to succeed.
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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 "tst_test.h"
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#include "config.h"
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#ifdef HAVE_UNSHARE
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static struct test_case_t {
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int mode;
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const char *desc;
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} tc[] = {
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{CLONE_FILES, "CLONE_FILES"},
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{CLONE_FS, "CLONE_FS"},
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{CLONE_NEWNS, "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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TST_EXP_PASS(unshare(tc[i].mode), "unshare(%s)", tc[i].desc);
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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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.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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