Description: This patch implements a basic test for /proc directory
which has been opened by parent namespace and see inside
container. Container is able to open /proc directory after
mount /proc directory inside container.
<Signed-off By>: Rishikesh K Rajak <[EMAIL PROTECTED]>
---
Index: ltp-full-20071130/testcases/kernel/containers/pidns/pidns03.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ ltp-full-20071130/testcases/kernel/containers/pidns/pidns03.c 2007-12-27 16:29:04.000000000 +0530
@@ -0,0 +1,189 @@
+/*
+* Copyright (c) International Business Machines Corp., 2007
+* 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
+*
+***************************************************************************
+
+* File: pidns03.c
+*
+* Description:
+* The pidns03.c testcase builds into the ltp framework to verify
+* the basic functionality of PID Namespace.
+*
+* Verify that:
+* 1. When parent, clone a process with flag CLONE_NEWPID, see the process id
+* of the parent is existing after mounting /proc
+*
+* Total Tests: 6 assertions
+*
+* Test Name: pidns03
+*
+* Test Assertion & Strategy:
+*
+* From main() clone a new child process with passing the clone_flag as CLONE_NEWPID,
+* Pass the main() process id as an argument of cloned function.
+* mount the /proc directory inside container
+* Verify with checking /proc/arg1 directory inside container, it should see after mounting
+* /proc but it the actual value of parent process id is zero.
+*
+* Usage: <for command-line>
+* pidns03
+*
+* History:
+*
+* FLAG DATE NAME DESCRIPTION
+* 27/12/07 RISHIKESH K RAJAK <[EMAIL PROTECTED]> Created this test
+*
+*******************************************************************************************/
+#include <sys/wait.h>
+#include <sys/mount.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <dirent.h>
+#ifndef NO_LTP
+#include <usctest.h>
+#include <test.h>
+#include <libclone.h>
+#else
+#include "../../../../include/usctest.h"
+#include "../libclone/libclone.h"
+#endif
+
+char *TCID = "pid_namespace3";
+int TST_TOTAL;
+
+static void setup();
+static void cleanup();
+static int child_fn();
+
+
+#ifdef NO_LTP
+#define TFAIL "FAILURE: "
+#define TPASS "PASS: "
+#define TINFO "INFO: "
+#define TWARN "WARN: "
+#define tst_resm(x, format, arg...) printf("%s:" format, x, ## arg)
+#define tst_exit() exit(1)
+#endif
+
+/***********************************************************************
+* M A I N
+***********************************************************************/
+int
+main(argc, argv)
+int argc;
+char **argv;
+{
+ int ret,status;
+ pid_t ppid;
+
+ /* Store the value of parent process ID and pass them as argument */
+ ppid = getpid();
+
+ /* Create a Container and execute to test the functionality */
+ ret = do_clone_unshare_test(T_CLONE, CLONE_NEWPID, child_fn, ppid);
+
+ /* check return code */
+ if (ret == -1) {
+ tst_resm(TFAIL, "clone() Failed, errno = %d :"
+ " %s", ret,
+ strerror(ret));
+ /* Cleanup & continue with next test case */
+ cleanup();
+ }
+ /* Wait for child to finish */
+ if ((wait(&status)) < 0) {
+ tst_resm(TWARN, "wait() failed, skipping this"
+ " test case");
+ /* Cleanup & continue with next test case */
+ cleanup();
+ }
+
+ if (WTERMSIG(status)) {
+ tst_resm(TWARN, "child exited with signal %d",
+ WTERMSIG(status));
+ }
+
+ /* cleanup and exit */
+ cleanup();
+
+ /*NOTREACHED*/
+ return 0;
+
+} /* End main */
+
+/*
+ * child_fn() - child function
+ */
+
+int
+child_fn(pid_t Ppid)
+{
+ char dirnam[50];
+ DIR *d;
+ pid_t parent_pid, cloned_pid;
+
+ parent_pid = getppid();
+ cloned_pid = getpid();
+
+ tst_resm(TINFO, " Checking pid for parent ns and container-init\n"
+ "\t\t\t\tParent namespace pid = %d,"
+ "container parent pid = %d,"
+ "and container pid = %d\n",
+ Ppid, parent_pid, cloned_pid);
+
+ /* do any /proc setup which winds up being necessary. */
+ if (mount("proc", "/proc", "proc", 0, NULL) < 0)
+ tst_resm(TFAIL, "mount failed : \n");
+
+ /* Check for the parent pid is existing still? */
+ sprintf(dirnam, "/proc/%d", Ppid);
+
+ d = opendir(dirnam);
+ if (!d) {
+ tst_resm(TPASS, \
+ "Got the proc file directory created by parent ns %d\n", Ppid);
+ umount("/proc");
+ } else {
+ tst_resm(TFAIL, "Failed to open /proc directory \n");
+ closedir(d);
+ }
+
+ cleanup();
+}
+
+/*
+ *cleanup() - performs all ONE TIME cleanup for this test at
+ * completion or premature exit.
+ */
+void
+cleanup()
+{
+
+#ifndef NO_LTP
+ /*
+ * print timing stats if that option was specified.
+ * print errno log if that option was specified.
+ */
+ TEST_CLEANUP;
+#endif
+
+ /* exit with return code appropriate for results */
+ tst_exit();
+
+} /* End cleanup() */
Index: ltp-full-20071130/testcases/kernel/containers/pidns/Makefile
===================================================================
--- ltp-full-20071130.orig/testcases/kernel/containers/pidns/Makefile 2007-12-27 16:28:40.000000000 +0530
+++ ltp-full-20071130/testcases/kernel/containers/pidns/Makefile 2007-12-27 16:29:57.000000000 +0530
@@ -3,7 +3,7 @@
LDLIBS += -L../../../../lib -L../libclone ../libclone/libclone.a -lltp
SRCS = $(wildcard *.c)
-NOLTPSRCS = pidns01.c pidns02.c
+NOLTPSRCS = pidns01.c pidns02.c pidns03.c
TARGETS = $(patsubst %.c,%,$(SRCS))
NOLTP_TARGETS = $(patsubst %.c,%_noltp,$(NOLTPSRCS))
Index: ltp-full-20071130/testcases/kernel/containers/pidns/runpidnstest.sh
===================================================================
--- ltp-full-20071130.orig/testcases/kernel/containers/pidns/runpidnstest.sh 2007-12-27 16:28:40.000000000 +0530
+++ ltp-full-20071130/testcases/kernel/containers/pidns/runpidnstest.sh 2007-12-27 16:30:08.000000000 +0530
@@ -11,3 +11,9 @@
exit_code="$?"
exit $exit_code
fi
+pidns03
+if [ $? -ne 0 ]; then
+ exit_code="$?"
+ exit $exit_code
+fi
+exit $exit_code
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