Hi
Submitting the testcase, which would try to kill the parent
namespace pid from the container init. Also this tests a scenario of
killing non existent pid from the container.
Regards
Veerendra C
[EMAIL PROTECTED] pidns]# ./pidns06
pidns06 0 INFO : Parent: Passing the pid of the process 21939
pidns06 1 PASS : Container: tried kill() on the parent pid 21939: errno set to 3 (No such process), as expected
pidns06 2 PASS : Container: While killing non existent pid errno set to 3 : No such process, as expected
Signed-off-by: Veerendra C <[EMAIL PROTECTED]>
Index: root/root/new/ltp-full-20080930/testcases/kernel/containers/pidns/pidns06.c
===================================================================
--- /dev/null
+++ root/root/new/ltp-full-20080930/testcases/kernel/containers/pidns/pidns06.c
@@ -0,0 +1,162 @@
+/*
+* Copyright (c) International Business Machines Corp., 2008
+* 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
+
+*************************************************************************
+* Description:
+* Testcase tries killing of the parent namespace pid by the container-init.
+* It also tries killing of non-existent PID, by the container-init.
+* Returns Success if Unable to kill, and proper error number is set.
+* else Returns Failure
+*
+* Steps:
+* 1. Parent process clone a process with flag CLONE_NEWPID
+* 2. The pid of the parent namespace is passed to the container.
+* 3. Container receieves the PID and passes SIGKILL to this PID.
+* 4. If kill() is unsuccessful and the errno is set to 'No Such process'
+* then sets PASS
+* else,
+* sets FAIL
+* 5. It also verifies by passing SIGKILL to FAKE_PID
+* 6. If kill() is unsuccessful and the errno is set to 'No Such process'
+* then sets PASS
+* else,
+* sets FAIL
+*
+* History:
+*
+* FLAG DATE NAME Description.
+* 21/10/08 Veerendra C <[EMAIL PROTECTED]> Verifies killing of processes
+* in container.
+*******************************************************************************/
+#define _GNU_SOURCE 1
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+#include <assert.h>
+#include <unistd.h>
+#include <errno.h>
+#include <usctest.h>
+#include <test.h>
+#include <libclone.h>
+#include <signal.h>
+
+#define CINIT_PID 1
+#define PARENT_PID 0
+#define FAKE_PID 1230
+
+char *TCID = "pidns06";
+int TST_TOTAL = 1;
+
+/*
+ * cleanup() - performs all ONE TIME cleanup for this test at
+ * completion or premature exit.
+ */
+void cleanup()
+{
+ /* Clean the test testcase as LTP wants*/
+ TEST_CLEANUP;
+
+ /* exit with return code appropriate for results */
+ tst_exit();
+}
+
+/*
+ * kill_pid_in_childfun()
+ * Cont-init tries to kill the parent-process using parent's global Pid.
+ * Also checks passing SIGKILL to non existent PID in the container.
+ */
+static int kill_pid_in_childfun(void *vtest)
+{
+ int cpid, ppid, *par_pid;
+ int ret = 0;
+ cpid = getpid();
+ ppid = getppid();
+ par_pid = (int *)vtest;
+
+ /* Checking the values to make sure pidns is created correctly */
+ if ((cpid != CINIT_PID) || (ppid != PARENT_PID)) {
+ tst_resm(TFAIL, "Unexpected result for Container: "
+ " init pid=%d parent pid=%d\n", cpid, ppid);
+ cleanup();
+ }
+
+ /*
+ * While trying kill() of the pid of the parent namespace..
+ * Check to see if the errno was set to the expected, value of 3 : ESRCH
+ */
+ ret = kill(*par_pid, SIGKILL);
+ if (ret == -1 && errno == ESRCH) {
+ tst_resm(TPASS, "Container: tried kill() on the parent "
+ "pid %d: errno set to %d (%s), as expected\n",
+ *par_pid, errno , strerror(errno));
+ } else {
+ tst_resm(TFAIL, "Container: tried kill() on the parent "
+ "pid %d, errno set to %d, (%s), expected %d, (%s). \n"
+ "\t\t\t\tReturn value is %d, expected -1.\n" ,
+ *par_pid, errno , strerror(errno), 3, strerror(3), ret);
+ }
+ /*
+ * While killing non-existent pid in the container,
+ * Check to see if the errno was set to the expected, value of 3 : ESRCH
+ */
+ ret = kill(FAKE_PID, SIGKILL);
+ if (ret == -1 && errno == ESRCH) {
+ tst_resm(TPASS, "Container: While killing non existent pid"
+ " errno set to %d : %s, as expected\n" ,
+ errno , strerror(errno));
+ } else {
+ tst_resm(TFAIL, "Container: While killing non-existent pid"
+ " errno set to %d : %s expected %d : %s. \n"
+ "\t\t\t\tReturn value is %d, expected -1.\n" ,
+ errno, strerror(errno), 3, strerror(3), ret);
+ }
+
+ cleanup();
+
+ /* NOT REACHED */
+ return 0;
+}
+
+/*********************************************************************
+* M A I N
+***********************************************************************/
+
+int main()
+{
+ int ret, status;
+ pid_t pid = getpid();
+
+ tst_resm(TINFO, "Parent: Passing the pid of the process %d", pid);
+ ret = do_clone_unshare_test(T_CLONE, CLONE_NEWPID,
+ kill_pid_in_childfun, (void *) &pid);
+
+ if (ret == -1) {
+ tst_resm(TFAIL, "clone() Failed, errno = %d : %s\n" ,
+ ret, strerror(ret));
+ cleanup();
+ }
+
+ /* Wait for child to finish */
+ if ((wait(&status)) < 0) {
+ tst_resm(TWARN, "wait() failed, skipping this test case");
+ cleanup();
+ }
+
+ /* cleanup and exit */
+ cleanup();
+
+ /*NOTREACHED*/
+ return 0;
+}
+
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