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      1 /*
      2  * Copyright (c) International Business Machines Corp., 2009
      3  * Copyright (c) Nadia Derbey, 2009
      4  * This program is free software; you can redistribute it and/or modify
      5  * it under the terms of the GNU General Public License as published by
      6  * the Free Software Foundation; either version 2 of the License, or
      7  * (at your option) any later version.
      8  *
      9  * This program is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
     12  * the GNU General Public License for more details.
     13  * You should have received a copy of the GNU General Public License
     14  * along with this program; if not, write to the Free Software
     15  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     16  *
     17  * Author: Serge Hallyn <serue (at) us.ibm.com>
     18  ***************************************************************************/
     19 #include <sys/mount.h>
     20 #include <sys/stat.h>
     21 #include <sys/types.h>
     22 #include <mqueue.h>
     23 #include "../libclone/libclone.h"
     24 #include "linux_syscall_numbers.h"
     25 #include "safe_macros.h"
     26 #include "test.h"
     27 
     28 static int dummy_child(void *v)
     29 {
     30 	(void) v;
     31 	return 0;
     32 }
     33 
     34 static void check_mqns(void)
     35 {
     36 	int pid, status;
     37 	mqd_t mqd;
     38 
     39 	if (tst_kvercmp(2, 6, 30) < 0)
     40 		tst_brkm(TCONF, NULL, "Kernel version is lower than expected");
     41 
     42 	mq_unlink("/checkmqnsenabled");
     43 	mqd =
     44 	    mq_open("/checkmqnsenabled", O_RDWR | O_CREAT | O_EXCL, 0777, NULL);
     45 	if (mqd == -1)
     46 		tst_brkm(TCONF, NULL, "mq_open check failed");
     47 
     48 	mq_close(mqd);
     49 	mq_unlink("/checkmqnsenabled");
     50 
     51 	pid = do_clone_unshare_test(T_CLONE, CLONE_NEWIPC, dummy_child, NULL);
     52 	if (pid == -1)
     53 		tst_brkm(TCONF | TERRNO, NULL, "CLONE_NEWIPC not supported");
     54 
     55 	SAFE_WAIT(NULL, &status);
     56 }
     57