| /* |
| * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| *************************************************************************** |
| |
| * File: pidns01.c |
| * |
| * Description: |
| * The pidns01.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, the process ID of |
| * child should be always one. |
| * |
| * 2. When parent clone a process with flag CLONE_NEWPID, the parent process ID of |
| * should be always zero. |
| * |
| * Total Tests: |
| * |
| * Test Name: pidns01 |
| * |
| * Test Assertion & Strategy: |
| * |
| * From main() clone a new child process with passing the clone_flag as CLONE_NEWPID, |
| * Inside the cloned pid check for the getpid() and getppid() |
| * Verify with global macro defined value for parent pid & child pid. |
| * |
| * Usage: <for command-line> |
| * pidns01 |
| * |
| * History: |
| * |
| * FLAG DATE NAME DESCRIPTION |
| * 27/12/07 RISHIKESH K RAJAK <risrajak@in.ibm.com> Created this test |
| * |
| *******************************************************************************************/ |
| #define _GNU_SOURCE |
| #include <sys/wait.h> |
| #include <assert.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <string.h> |
| #include <errno.h> |
| #include "test.h" |
| #define CLEANUP cleanup |
| #include "libclone.h" |
| #include "pidns_helper.h" |
| |
| char *TCID = "pid_namespace1"; |
| int TST_TOTAL = 1; |
| |
| #define CHILD_PID 1 |
| #define PARENT_PID 0 |
| |
| /* |
| * child_fn1() - Inside container |
| */ |
| int child_fn1(void *ttype) |
| { |
| int exit_val; |
| pid_t cpid, ppid; |
| cpid = getpid(); |
| ppid = getppid(); |
| |
| tst_resm(TINFO, "PIDNS test is running inside container"); |
| if (cpid == CHILD_PID && ppid == PARENT_PID) { |
| printf("Got expected cpid and ppid\n"); |
| exit_val = 0; |
| } else { |
| printf("Got unexpected result of cpid=%d ppid=%d\n", |
| cpid, ppid); |
| exit_val = 1; |
| } |
| |
| return exit_val; |
| } |
| |
| static void setup(void) |
| { |
| tst_require_root(NULL); |
| check_newpid(); |
| } |
| |
| int main(int argc, char *argv[]) |
| { |
| int status; |
| |
| setup(); |
| |
| TEST(do_clone_unshare_test(T_CLONE, CLONE_NEWPID, child_fn1, NULL)); |
| |
| if (TEST_RETURN == -1) { |
| tst_brkm(TFAIL | TTERRNO, cleanup, "clone failed"); |
| } else if ((wait(&status)) == -1) { |
| tst_brkm(TWARN | TERRNO, cleanup, "wait failed"); |
| } |
| |
| if (WIFEXITED(status) && WEXITSTATUS(status) != 0) |
| tst_resm(TFAIL, "child exited abnormally"); |
| else if (WIFSIGNALED(status)) { |
| tst_resm(TFAIL, "child was killed with signal = %d", |
| WTERMSIG(status)); |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| static void cleanup() |
| { |
| } |