| /* |
| * 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: pidns02.c |
| * |
| * Description: |
| * The pidns02.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 session ID of |
| * child should be always one. |
| * |
| * 2. When parent clone a process with flag CLONE_NEWPID, the parent process group ID |
| * should be always one. |
| * |
| * Total Tests |
| * |
| * Test Name: pidns02 |
| * |
| * Test Assertion & Strategy: |
| * |
| * From main() clone a new child process with passing the clone_flag as CLONE_NEWPID, |
| * Call the setid() inside container. |
| * Inside the cloned pid check for the getsid(0) and getpgid(0) |
| * Verify with global macro defined value for parent pid & child pid. |
| * |
| * Usage: <for command-line> |
| * pidns02 |
| */ |
| |
| #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_namespace2"; |
| int TST_TOTAL = 1; |
| |
| #define PGID 1 |
| #define SID 1 |
| |
| /* |
| * child_fn1() - Inside container |
| */ |
| int child_fn1(void *vtest) |
| { |
| pid_t pgid, sid; |
| |
| setsid(); |
| |
| pgid = getpgid(0); |
| sid = getsid(0); |
| |
| printf("Checking session id & group id inside container\n"); |
| if (pgid == PGID && sid == SID) { |
| printf("Success: Got Group ID = %d & Session ID = %d\n", |
| pgid, sid); |
| exit(0); |
| } else { |
| printf("Got unexpected result of Group ID = %d & Session ID = " |
| "%d\n", pgid, sid); |
| exit(1); |
| } |
| } |
| |
| 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(TFAIL | TERRNO, CLEANUP, "wait failed"); |
| } |
| |
| if (WIFEXITED(status) && WEXITSTATUS(status) != 0) { |
| tst_resm(TFAIL | TERRNO, "child exited abnormally"); |
| } else if (WIFSIGNALED(status)) { |
| tst_resm(TFAIL | TERRNO, "child exited with signal %d", |
| WTERMSIG(status)); |
| } |
| |
| CLEANUP(); |
| tst_exit(); |
| |
| } |
| |
| /* |
| * CLEANUP() - performs all ONE TIME CLEANUP for this test at |
| * completion or premature exit. |
| */ |
| void cleanup() |
| { |
| } |