83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2007
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* Serge Hallyn <serue@us.ibm.com>
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* Copyright (C) 2022 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
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*/
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/*\
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* [Description]
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*
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* Test if SysV IPC shared memory with a specific key is shared between
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* processes and namespaces.
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*/
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#define _GNU_SOURCE
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#include <sys/wait.h>
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#include <sys/msg.h>
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#include <sys/types.h>
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#include "tst_safe_sysv_ipc.h"
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#include "tst_test.h"
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#include "common.h"
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#define TESTKEY 0xEAEAEA
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static char *str_op;
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static int use_clone;
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static int ipc_id = -1;
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static int check_shmid(LTP_ATTRIBUTE_UNUSED void *vtest)
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{
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TEST(shmget(TESTKEY, 100, 0));
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if (TST_RET < 0) {
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if (use_clone == T_NONE)
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tst_res(TFAIL, "plain cloned process didn't find shmid");
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else
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tst_res(TPASS, "%s: child process didn't find shmid", str_op);
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} else {
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if (use_clone == T_NONE)
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tst_res(TPASS, "plain cloned process found shmid");
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else
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tst_res(TFAIL, "%s: child process found shmid", str_op);
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}
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return 0;
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}
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static void run(void)
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{
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clone_unshare_test(use_clone, CLONE_NEWIPC, check_shmid, NULL);
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}
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static void setup(void)
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{
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use_clone = get_clone_unshare_enum(str_op);
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if (use_clone != T_NONE)
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check_newipc();
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ipc_id = shmget(TESTKEY, 100, IPC_CREAT);
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}
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static void cleanup(void)
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{
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if (ipc_id != -1) {
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tst_res(TINFO, "Destroying shared memory");
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SAFE_SHMCTL(ipc_id, IPC_RMID, NULL);
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}
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}
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static struct tst_test test = {
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.test_all = run,
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.setup = setup,
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.cleanup = cleanup,
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.forks_child = 1,
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.needs_root = 1,
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.needs_checkpoints = 1,
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.options = (struct tst_option[]) {
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{ "m:", &str_op, "Test execution mode <clone|unshare|none>" },
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{},
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},
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};
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