On Tue, 2009-03-03 at 17:02 -0600, Serge E. Hallyn wrote:
> >From d94e82179644f02d3561da104a054f099bc72416 Mon Sep 17 00:00:00 2001
> From: Nadia Derbey <nadia.der...@bull.net>
> Date: Tue, 16 Dec 2008 22:00:40 +0000
> Subject: [PATCH 2/4] ltp: posix mqns: test parent to child mq access
>
> It's kind of redundant with test 01 since there is no hierarchical
> relationship between ipc namespaces - they are all completely isolated.
> But heck it can't hurt.
>
> Signed-off-by: Nadia Derbey <nadia.der...@bull.net>
> Signed-off-by: Serge Hallyn <se...@us.ibm.com>
Thanks. Merged.
Regards--
Subrata
> ---
> testcases/kernel/containers/mqns/mqns_02.c | 139
> +++++++++++++++++++++++
> testcases/kernel/containers/mqns/runmqnstest.sh | 2 +-
> 2 files changed, 140 insertions(+), 1 deletions(-)
> create mode 100644 testcases/kernel/containers/mqns/mqns_02.c
> mode change 100644 => 100755 testcases/kernel/containers/mqns/runmqnstest.sh
>
> diff --git a/testcases/kernel/containers/mqns/mqns_02.c
> b/testcases/kernel/containers/mqns/mqns_02.c
> new file mode 100644
> index 0000000..5e0645f
> --- /dev/null
> +++ b/testcases/kernel/containers/mqns/mqns_02.c
> @@ -0,0 +1,139 @@
> +/*
> +* Copyright (c) International Business Machines Corp., 2009
> +* Copyright (c) Nadia Derbey, 2009
> +* This program is free software; you can redistribute it and/or modify
> +* it under the terms of the GNU General Public License as published by
> +* the Free Software Foundation; either version 2 of the License, or
> +* (at your option) any later version.
> +*
> +* This program is distributed in the hope that it will be useful,
> +* but WITHOUT ANY WARRANTY; without even the implied warranty of
> +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
> +* the GNU General Public License for more details.
> +* You should have received a copy of the GNU General Public License
> +* along with this program; if not, write to the Free Software
> +* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
> +*
> +* Author: Nadia Derbey <nadia.der...@bull.net>
> +*
> +* Check mqns isolation: child mqns cannot be accessed from father
> +*
> +* Mount mqueue fs
> +* unshare
> +* In unshared process:
> +* Mount newinstance mqueuefs
> +* Create a posix mq -->mq1
> +* Check that mq1 is not readable from father
> +*
> +* Changelog:
> +* Dec 16: accomodate new mqns semantics (Serge Hallyn)
> +
> +***************************************************************************/
> +
> +#define _GNU_SOURCE 1
> +#include <sys/wait.h>
> +#include <assert.h>
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <unistd.h>
> +#include <string.h>
> +#include <errno.h>
> +#include "mqns.h"
> +
> +char *TCID = "posixmq_namespace_02";
> +int TST_TOTAL=1;
> +
> +int p1[2];
> +int p2[2];
> +
> +int check_mqueue(void *vtest)
> +{
> + char buf[30];
> + mqd_t mqd;
> +
> + close(p1[1]);
> + close(p2[0]);
> +
> + read(p1[0], buf, 3);
> +
> + mqd = mq_open(SLASH_MQ1, O_RDWR|O_CREAT|O_EXCL, 0777, NULL);
> + if (mqd == -1) {
> + write(p2[1], "mqfail", 7);
> + tst_exit(3);
> + }
> +
> + write(p2[1], "mqopen", 7);
> +
> + read(p1[0], buf, 5);
> +
> + /* destroy the mqueue */
> + mq_close(mqd);
> + mq_unlink(SLASH_MQ1);
> +
> + write(p2[1], "done", 5);
> +
> + tst_exit(0);
> +
> + /* NOT REACHED */
> + return 0;
> +}
> +
> +
> +int main(int argc, char *argv[])
> +{
> + int r;
> + mqd_t mqd;
> + char buf[30];
> + int use_clone = T_UNSHARE;
> +
> + if (argc == 2 && strcmp(argv[1], "-clone") == 0) {
> + tst_resm(TINFO, "Testing posix mq namespaces through
> clone(2).\n");
> + use_clone = T_CLONE;
> + } else
> + tst_resm(TINFO, "Testing posix mq namespaces through
> unshare(2).\n");
> +
> + if (pipe(p1) == -1) { perror("pipe"); exit(EXIT_FAILURE); }
> + if (pipe(p2) == -1) { perror("pipe"); exit(EXIT_FAILURE); }
> +
> + /* fire off the test */
> + r = do_clone_unshare_test(use_clone, CLONE_NEWIPC, check_mqueue, NULL);
> + if (r < 0) {
> + tst_resm(TFAIL, "failed clone/unshare\n");
> + tst_exit(1);
> + }
> +
> + tst_resm(TINFO, "Checking namespaces isolation (child to parent)\n");
> +
> + close(p1[0]);
> + close(p2[1]);
> + write(p1[1], "go", 3);
> +
> + read(p2[0], buf, 7);
> + if (!strcmp(buf, "mqfail")) {
> + tst_resm(TFAIL, "child process could not create mqueue\n");
> + umount(DEV_MQUEUE);
> + tst_exit(TFAIL);
> + } else if (strcmp(buf, "mqopen")) {
> + tst_resm(TFAIL, "child process could not create mqueue\n");
> + umount(DEV_MQUEUE);
> + tst_exit(TFAIL);
> + }
> +
> + mqd = mq_open(SLASH_MQ1, O_RDONLY);
> + if (mqd == -1) {
> + r = TPASS;
> + tst_resm(TPASS, "Father process doesn't see mqueue\n");
> + } else {
> + r = TFAIL;
> + tst_resm(TFAIL, "Father process found mqueue\n");
> + mq_close(mqd);
> + }
> +
> + write(p1[1], "cont", 5);
> + read(p2[0], buf, 7);
> +
> + tst_exit(r);
> +
> + /* NOT REACHED */
> + return 0;
> +}
> diff --git a/testcases/kernel/containers/mqns/runmqnstest.sh
> b/testcases/kernel/containers/mqns/runmqnstest.sh
> old mode 100644
> new mode 100755
> index e3b334c..1252352
> --- a/testcases/kernel/containers/mqns/runmqnstest.sh
> +++ b/testcases/kernel/containers/mqns/runmqnstest.sh
> @@ -21,7 +21,7 @@
>
> ################################################################################
>
> exit_code=0
> -tests_list='mqns_01'
> +tests_list='mqns_01 mqns_02'
>
> for t in $tests_list
> do
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