diff options
Diffstat (limited to 'testcases/kernel/containers/pidns/pidns30.c')
-rw-r--r-- | testcases/kernel/containers/pidns/pidns30.c | 325 |
1 files changed, 75 insertions, 250 deletions
diff --git a/testcases/kernel/containers/pidns/pidns30.c b/testcases/kernel/containers/pidns/pidns30.c index c8b0806c0..4a8bc5e2b 100644 --- a/testcases/kernel/containers/pidns/pidns30.c +++ b/testcases/kernel/containers/pidns/pidns30.c @@ -1,296 +1,121 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* -* Copyright (c) Bull S.A.S. 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA -* -*************************************************************************** -* File: pidns30.c -* -* Description: -* This testcase checks if the si_pid is correctly set when a process -* that has registered for notification on a posix mqueue is in a -* descendant namespace wrt the process that sends a message to that posix -* mqueue. -* -* Test Assertion & Strategy: -* Parent Child -* -------------------------------------------------------------------------- -* Create a POSIX mqueue. -* Create a PID namespace container. -* Open that mqueue for reading -* Register for notification when a -* message arrives in that mqueue -* Install a handler for SIGUSR1. -* Write something to the mqueue. -* Inside the handler, check that -* si_pid is set to 0 -* -* Usage: <for command-line> -* pidns30 -* -* History: -* DATE NAME DESCRIPTION -* 01/12/08 Nadia Derbey Creation of this test. -* <Nadia.Derbey@bull.net> -* -******************************************************************************/ -#define _GNU_SOURCE 1 -#include <sys/wait.h> -#include <sys/types.h> -#include <signal.h> -#include <stdlib.h> -#include <unistd.h> -#include <stdio.h> -#include <mqueue.h> -#include "lapi/syscalls.h" -#include "pidns_helper.h" -#include "test.h" - -char *TCID = "pidns30"; -int TST_TOTAL = 1; - -char *mqname = "mq1"; -int result = TFAIL; - -int father_to_child[2]; -int child_to_father[2]; - -#define CHILD_PID 1 -#define PARENT_PID 0 + * Copyright (c) Bull S.A.S. 2008 + * 01/12/08 Nadia Derbey <Nadia.Derbey@bull.net> + * Copyright (C) 2023 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com> + */ -#define MSG "HOW ARE YOU" -#define MSG_PRIO 1 +/*\ + * [Description] + * + * Clone a process with CLONE_NEWPID flag, register notification on a posix + * mqueue and send a mqueue message from the parent. Then check if signal + * notification contains si_pid of the parent. + */ -#define NO_STEP -1 -#define F_STEP_0 0x00 -#define F_STEP_1 0x01 -#define F_STEP_2 0x02 -#define F_STEP_3 0x03 -#define C_STEP_0 0x10 -#define C_STEP_1 0x11 -#define C_STEP_2 0x12 +#define _GNU_SOURCE +#include <signal.h> +#include <mqueue.h> +#include "tst_test.h" +#include "tst_safe_posix_ipc.h" +#include "lapi/sched.h" -mqd_t rc = -1; -mqd_t mqd = -1; +#define MQNAME "/LTP_PIDNS30_MQ" -static void remove_pipe(int *fd) -{ - close(fd[0]); - close(fd[1]); -} +static mqd_t mqd = -1; +static siginfo_t info; +static volatile int received; static void remove_mqueue(mqd_t mqd) { - mq_close(mqd); - tst_syscall(__NR_mq_unlink, mqname); -} + if (mqd != -1) + SAFE_MQ_CLOSE(mqd); -static void cleanup(void) -{ - if (mqd != -1) { - remove_mqueue(mqd); - } - if (rc != -1) { - remove_mqueue(rc); - } - remove_pipe(father_to_child); - remove_pipe(child_to_father); + mq_unlink(MQNAME); } -static void cleanup_child(void) +static void child_signal_handler(LTP_ATTRIBUTE_UNUSED int sig, siginfo_t *si, LTP_ATTRIBUTE_UNUSED void *unused) { - if (mqd != -1) { - tst_syscall(__NR_mq_notify, mqd, NULL); - } - cleanup(); + received = 1; + memcpy(&info, si, sizeof(info)); } -/* - * child_signal_handler() - to handle SIGUSR1 - * - * XXX (garrcoop): add calls to cleanup_child() -- or should this be handled - * from the libltp signal handler? - */ -static void child_signal_handler(int sig, siginfo_t * si, void *unused) +static void child_func(void) { - char buf[256]; - struct mq_attr attr; - - if (si->si_signo != SIGUSR1) { - printf("received signal = %d unexpectedly\n", si->si_signo); - return; - } - - if (si->si_code != SI_MESGQ) { - printf("expected signal code SI_MESGQ; got %d instead\n", - si->si_code); - return; - } - - if (si->si_pid) { - printf("expected signal originator PID = 0; got %d instead\n", - si->si_pid); - return; - } else { - printf("signal originator PID = 0\n"); - result = TPASS; - } - - /* - * Now read the message - Be silent on errors since this is not the - * test purpose. - */ - rc = mq_getattr(si->si_int, &attr); - if (rc != -1) - mq_receive(si->si_int, buf, attr.mq_msgsize, NULL); -} - -/* - * child_fn() - Inside container - * - * XXX (garrcoop): add more calls to cleanup_child()? - */ -int child_fn(void *arg) -{ - pid_t pid, ppid; + pid_t cpid, ppid; struct sigaction sa; struct sigevent notif; - char buf[5]; + mqd_t mqd_child; - /* Set process id and parent pid */ - pid = getpid(); + cpid = tst_getpid(); ppid = getppid(); - if (pid != CHILD_PID || ppid != PARENT_PID) { - printf("pidns was not created\n"); - return 1; - } - - /* Close the appropriate end of each pipe */ - close(child_to_father[0]); - close(father_to_child[1]); + TST_EXP_EQ_LI(cpid, 1); + TST_EXP_EQ_LI(ppid, 0); - while (read(father_to_child[0], buf, 1) != 1) - sleep(1); + TST_CHECKPOINT_WAIT(0); - mqd = tst_syscall(__NR_mq_open, mqname, O_RDONLY, 0, NULL); - if (mqd == -1) { - perror("mq_open failed"); - return 1; - } else - printf("mq_open succeeded\n"); + tst_res(TINFO, "Register notification on posix mqueue"); - /* Register for notification on message arrival */ + mqd_child = SAFE_MQ_OPEN(MQNAME, O_RDONLY, 0, NULL); notif.sigev_notify = SIGEV_SIGNAL; notif.sigev_signo = SIGUSR1; - notif.sigev_value.sival_int = mqd; - if (tst_syscall(__NR_mq_notify, mqd, ¬if) == -1) { - perror("mq_notify failed"); - return 1; - } else - printf("successfully registered for notification\n"); + notif.sigev_value.sival_int = mqd_child; + + SAFE_MQ_NOTIFY(mqd_child, ¬if); - /* Define handler for SIGUSR1 */ sa.sa_flags = SA_SIGINFO; - sigemptyset(&sa.sa_mask); + SAFE_SIGEMPTYSET(&sa.sa_mask); sa.sa_sigaction = child_signal_handler; - if (sigaction(SIGUSR1, &sa, NULL) == -1) { - perror("sigaction failed"); - return 1; - } else - printf("successfully registered handler for SIGUSR1\n"); - - /* Ask parent to send a message to the mqueue */ - if (write(child_to_father[1], "c:ok", 5) != 5) { - perror("write failed"); - return 1; - } + SAFE_SIGACTION(SIGUSR1, &sa, NULL); - sleep(3); + TST_CHECKPOINT_WAKE_AND_WAIT(0); - /* Has parent sent a message? */ - read(father_to_child[0], buf, 5); - if (strcmp(buf, "f:ok") != 0) { - printf("parent did not send the message!\n"); - return 1; - } - printf("parent is done - cleaning up\n"); - - cleanup_child(); + if (received) + tst_res(TPASS, "Signal notification has been received"); + else + tst_res(TFAIL, "Signal notification has not been received"); - exit(0); + TST_EXP_EQ_LI(info.si_signo, SIGUSR1); + TST_EXP_EQ_LI(info.si_code, SI_MESGQ); + TST_EXP_EQ_LI(info.si_pid, 0); } -static void setup(void) +static void cleanup(void) { - tst_require_root(); - check_newpid(); + remove_mqueue(mqd); } -int main(void) +static void run(void) { - int status; - char buf[5]; - pid_t cpid; + const struct tst_clone_args args = { + .flags = CLONE_NEWPID, + .exit_signal = SIGCHLD, + }; - setup(); + remove_mqueue(mqd); + received = 0; - if (pipe(child_to_father) == -1 || pipe(father_to_child) == -1) { - tst_brkm(TBROK | TERRNO, cleanup, "pipe failed"); + if (!SAFE_CLONE(&args)) { + child_func(); + return; } - tst_syscall(__NR_mq_unlink, mqname); - - /* container creation on PID namespace */ - cpid = ltp_clone_quick(CLONE_NEWPID | SIGCHLD, child_fn, NULL); - if (cpid == -1) - tst_brkm(TBROK | TERRNO, cleanup, "clone failed"); - - mqd = - tst_syscall(__NR_mq_open, mqname, O_RDWR | O_CREAT | O_EXCL, 0777, - NULL); - if (mqd == -1) - tst_brkm(TBROK | TERRNO, cleanup, "mq_open failed"); - else - tst_resm(TINFO, "successfully created posix mqueue"); - - if (write(father_to_child[1], buf, 1) != 1) - tst_brkm(TBROK | TERRNO, cleanup, "write failed"); + mqd = SAFE_MQ_OPEN(MQNAME, O_RDWR | O_CREAT | O_EXCL, 0777, 0); - /* Close the appropriate end of each pipe */ - close(child_to_father[1]); - close(father_to_child[0]); + TST_CHECKPOINT_WAKE_AND_WAIT(0); - /* Is container ready */ - read(child_to_father[0], buf, 5); - if (strcmp(buf, "c:ok") != 0) - tst_brkm(TBROK, cleanup, - "container did not respond as expected!"); - - rc = mq_send(mqd, MSG, strlen(MSG), MSG_PRIO); - if (rc == -1) - tst_brkm(TBROK | TERRNO, cleanup, "mq_send failed"); - else - tst_resm(TINFO, "mq_send succeeded"); + tst_res(TINFO, "Send mqueue message"); - /* Tell the child the message has been sent */ - if (write(father_to_child[1], "f:ok", 5) != 5) - tst_brkm(TBROK | TERRNO, cleanup, "write failed"); + SAFE_MQ_SEND(mqd, "pippo", 5, 1); - /* Wait for child to finish */ - if (wait(&status) == -1) - tst_resm(TBROK | TERRNO, "wait failed"); - - cleanup(); - - tst_exit(); + TST_CHECKPOINT_WAKE(0); } + +static struct tst_test test = { + .test_all = run, + .cleanup = cleanup, + .forks_child = 1, + .needs_root = 1, + .needs_checkpoints = 1, +}; |