115 lines
2.8 KiB
C
115 lines
2.8 KiB
C
/*
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* Copyright (c) International Business Machines Corp., 2007
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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***************************************************************************
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* File: pidns02.c
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*
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* Description:
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* The pidns02.c testcase builds into the ltp framework to verify
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* the basic functionality of PID Namespace.
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*
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* Verify that:
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* 1. When parent clone a process with flag CLONE_NEWPID, the session ID of
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* child should be always one.
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*
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* 2. When parent clone a process with flag CLONE_NEWPID, the parent process group ID
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* should be always one.
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*
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* Total Tests
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*
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* Test Name: pidns02
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*
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* Test Assertion & Strategy:
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*
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* From main() clone a new child process with passing the clone_flag as CLONE_NEWPID,
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* Call the setid() inside container.
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* Inside the cloned pid check for the getsid(0) and getpgid(0)
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* Verify with global macro defined value for parent pid & child pid.
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*
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* Usage: <for command-line>
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* pidns02
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*/
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#define _GNU_SOURCE
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#include <sys/wait.h>
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include "pidns_helper.h"
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#include "test.h"
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char *TCID = "pidns02";
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int TST_TOTAL = 1;
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#define PGID 1
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#define SID 1
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/*
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* child_fn1() - Inside container
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*/
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int child_fn1(void *vtest)
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{
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pid_t pgid, sid;
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setsid();
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pgid = getpgid(0);
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sid = getsid(0);
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printf("Checking session id & group id inside container\n");
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if (pgid == PGID && sid == SID) {
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printf("Success: Got Group ID = %d & Session ID = %d\n",
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pgid, sid);
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exit(0);
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} else {
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printf("Got unexpected result of Group ID = %d & Session ID = "
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"%d\n", pgid, sid);
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exit(1);
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}
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}
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static void setup(void)
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{
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tst_require_root();
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check_newpid();
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}
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int main(void)
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{
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int status;
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setup();
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TEST(do_clone_unshare_test(T_CLONE, CLONE_NEWPID, child_fn1, NULL));
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if (TEST_RETURN == -1) {
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tst_brkm(TFAIL | TTERRNO, NULL, "clone failed");
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} else if ((wait(&status)) == -1) {
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tst_brkm(TFAIL | TERRNO, NULL, "wait failed");
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}
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if (WIFEXITED(status) && WEXITSTATUS(status) != 0) {
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tst_resm(TFAIL | TERRNO, "child exited abnormally");
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} else if (WIFSIGNALED(status)) {
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tst_resm(TFAIL | TERRNO, "child exited with signal %d",
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WTERMSIG(status));
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}
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tst_exit();
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}
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