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.
Signed-off-by: Nadia Derbey <[EMAIL PROTECTED]>
---
testcases/kernel/containers/pidns/Makefile | 4
testcases/kernel/containers/pidns/pidns04.c | 331 ++++++++++++++++++++++++++++
2 files changed, 333 insertions(+), 2 deletions(-)
Index: ltp-full-20080831/testcases/kernel/containers/pidns/Makefile
===================================================================
--- ltp-full-20080831.orig/testcases/kernel/containers/pidns/Makefile
2008-08-31 16:33:01.000000000 +0200
+++ ltp-full-20080831/testcases/kernel/containers/pidns/Makefile
2008-12-04 13:44:31.000000000 +0100
@@ -20,10 +20,10 @@
CFLAGS += -Wall
CPPFLAGS += -I../../../../include -I../libclone
-LDLIBS += -L../../../../lib -L../libclone ../libclone/libclone.a -lltp
+LDLIBS += -L../../../../lib -L../libclone ../libclone/libclone.a -lltp -lrt
SRCS = $(wildcard *.c)
-NOLTPSRCS = pidns01.c pidns02.c pidns03.c
+NOLTPSRCS = pidns01.c pidns02.c pidns03.c pidns04.c
TARGETS = $(patsubst %.c,%,$(SRCS))
NOLTP_TARGETS = $(patsubst %.c,%_noltp,$(NOLTPSRCS))
Index: ltp-full-20080831/testcases/kernel/containers/pidns/pidns04.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ ltp-full-20080831/testcases/kernel/containers/pidns/pidns04.c
2008-12-04 13:44:04.000000000 +0100
@@ -0,0 +1,331 @@
+/*
+* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*
+***************************************************************************
+* File: pidns04.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>
+* pidns04
+*
+* History:
+* DATE NAME DESCRIPTION
+* 01/12/08 Nadia Derbey Creation of this test.
+* <[EMAIL PROTECTED]>
+*
+******************************************************************************/
+#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 <usctest.h>
+#include <test.h>
+#include <libclone.h>
+
+char *TCID = "pidns04";
+int TST_TOTAL = 1;
+
+char *mqname = "/mq1";
+int result = TFAIL;
+
+int errno;
+int father_to_child[2];
+int child_to_father[2];
+
+#define CHILD_PID 1
+#define PARENT_PID 0
+
+#define MSG "HOW ARE YOU"
+#define MSG_PRIO 1
+
+/*
+ * cleanup() - performs all ONE TIME cleanup for this test at
+ * completion or premature exit.
+ */
+static void cleanup(int r)
+{
+ /* Clean the test testcase as LTP wants*/
+ TEST_CLEANUP;
+
+ /* exit with return code appropriate for results */
+ tst_exit(r);
+}
+
+/*
+ * child_signal_handler() - to handle SIGUSR1
+ */
+static void child_signal_handler(int sig, siginfo_t *si, void *unused)
+{
+ char buf[256];
+ mqd_t rc;
+ struct mq_attr attr;
+
+ if (si->si_signo != SIGUSR1) {
+ tst_resm(TBROK, "cinit: received %s unexpectedly",
+ strsignal(si->si_signo));
+ return;
+ }
+
+ if (si->si_code != SI_MESGQ) {
+ tst_resm(TBROK, "cinit: expected signal code SI_MESGQ - Got %d",
+ si->si_code);
+ return;
+ }
+
+ if (si->si_pid) {
+ tst_resm(TFAIL,
+ "cinit: expected signal originator PID = 0 - Got %d",
+ si->si_pid);
+ return;
+ }
+
+ tst_resm(TPASS, "cinit: signal originator PID = 0");
+ result = TPASS;
+
+ /*
+ * Now read the message - Be silent on errors since this is not the
+ * test purpose.
+ */
+ rc = mq_getattr((mqd_t)si->si_int, &attr);
+ if (rc == (mqd_t)-1)
+ return;
+
+ mq_receive((mqd_t)si->si_int, buf, attr.mq_msgsize, NULL);
+}
+
+
+/*
+ * child_fn() - Inside container
+ */
+int child_fn(void *arg)
+{
+ pid_t pid, ppid;
+ struct sigaction sa;
+ mqd_t mqd;
+ struct sigevent notif;
+ char buf[5];
+
+ /* Set process id and parent pid */
+ pid = getpid();
+ ppid = getppid();
+
+ if (pid != CHILD_PID || ppid != PARENT_PID) {
+ tst_resm(TBROK, "cinit: pidns is not created");
+ cleanup(TBROK);
+ }
+
+ /* Close the appropriate end of each pipe */
+ close(child_to_father[0]);
+ close(father_to_child[1]);
+
+ mqd = mq_open(mqname, O_RDONLY);
+ if (mqd == (mqd_t)-1) {
+ tst_resm(TBROK, "cinit: mq_open() failed (%s)",
+ strerror(errno));
+ cleanup(TBROK);
+ }
+ tst_resm(TINFO, "cinit: mq_open succeeded");
+
+ /* Register for notification on message arrival */
+ notif.sigev_notify = SIGEV_SIGNAL;
+ notif.sigev_signo = SIGUSR1;
+ notif.sigev_value.sival_int = mqd;
+ if (mq_notify(mqd, ¬if) == (mqd_t)-1) {
+ tst_resm(TBROK, "cinit: mq_notify() failed (%s)",
+ strerror(errno));
+ mq_close(mqd);
+ cleanup(TBROK);
+ }
+ tst_resm(TINFO, "cinit: successfully registered for notification");
+
+ /* Define handler for SIGUSR1 */
+ sa.sa_flags = SA_SIGINFO;
+ sigemptyset(&sa.sa_mask);
+ sa.sa_sigaction = child_signal_handler;
+ if (sigaction(SIGUSR1, &sa, NULL) == -1) {
+ tst_resm(TBROK, "cinit: sigaction() failed(%s)",
+ strerror(errno));
+ mq_notify(mqd, NULL);
+ mq_close(mqd);
+ cleanup(TBROK);
+ }
+ tst_resm(TINFO, "cinit: successfully registered handler for SIGUSR1");
+
+ /* Ask parent to send a message to the mqueue */
+ if (write(child_to_father[1], "c:ok", 5) != 5) {
+ tst_resm(TBROK, "cinit: pipe is broken (%s)", strerror(errno));
+ mq_notify(mqd, NULL);
+ mq_close(mqd);
+ cleanup(TBROK);
+ }
+
+ sleep(3);
+
+ /* Has parent sent a message? */
+ read(father_to_child[0], buf, 5);
+ if (strcmp(buf, "f:ok")) {
+ tst_resm(TBROK, "cinit: parent did not send the message!");
+ mq_notify(mqd, NULL);
+ mq_close(mqd);
+ cleanup(TBROK);
+ }
+ tst_resm(TINFO, "cinit: my father is done - cleaning");
+
+ /* Be silent on errors from now on */
+ mq_close(mqd);
+
+ /* Cleanup and exit */
+ close(child_to_father[1]);
+ close(father_to_child[0]);
+ exit(0);
+}
+
+static void remove_pipe(int *fd)
+{
+ close(fd[0]);
+ close(fd[1]);
+}
+
+/***********************************************************************
+* M A I N
+***********************************************************************/
+
+int main(int argc, char *argv[])
+{
+ int stack_size = getpagesize() * 4;
+ void *stack = malloc(stack_size);
+ void *childstack;
+ int status;
+ char buf[5];
+ pid_t cpid;
+ mqd_t mqd;
+ mqd_t rc;
+
+ if (!stack) {
+ tst_resm(TBROK, "parent: stack creation failed.");
+ cleanup(TBROK);
+ }
+
+ if (pipe(child_to_father) == -1) {
+ tst_resm(TBROK, "parent: pipe() failed. aborting!");
+ cleanup(TBROK);
+ }
+
+ if (pipe(father_to_child) == -1) {
+ tst_resm(TBROK, "parent: pipe() failed. aborting!");
+ remove_pipe(child_to_father);
+ cleanup(TBROK);
+ }
+
+ mq_unlink(mqname);
+ mqd = mq_open(mqname, O_RDWR|O_CREAT|O_EXCL, 0777, NULL);
+ if (mqd == (mqd_t)-1) {
+ tst_resm(TBROK, "parent: mq_open() failed (%s)",
+ strerror(errno));
+ remove_pipe(father_to_child);
+ remove_pipe(child_to_father);
+ cleanup(TBROK);
+ }
+ tst_resm(TINFO, "parent: successfully created posix mqueue");
+
+ /* container creation on PID namespace */
+ childstack = stack + stack_size;
+ cpid = clone(child_fn, childstack, CLONE_NEWPID|SIGCHLD, NULL);
+ if (cpid < 0) {
+ tst_resm(TBROK, "parent: clone() failed(%s)", strerror(errno));
+ mq_close(mqd);
+ mq_unlink(mqname);
+ remove_pipe(father_to_child);
+ remove_pipe(child_to_father);
+ cleanup(TBROK);
+ }
+
+ /* Close the appropriate end of each pipe */
+ close(child_to_father[1]);
+ close(father_to_child[0]);
+
+ /* Is container ready */
+ read(child_to_father[0], buf, 5);
+ if (strcmp(buf, "c:ok")) {
+ tst_resm(TBROK, "parent: container did not respond!");
+ mq_close(mqd);
+ mq_unlink(mqname);
+ remove_pipe(father_to_child);
+ remove_pipe(child_to_father);
+ cleanup(TBROK);
+ }
+
+ rc = mq_send(mqd, MSG, strlen(MSG), MSG_PRIO);
+ if (rc == (mqd_t)-1) {
+ tst_resm(TBROK, "parent: mq_send() failed (%s)",
+ strerror(errno));
+ mq_close(mqd);
+ mq_unlink(mqname);
+ remove_pipe(father_to_child);
+ remove_pipe(child_to_father);
+ cleanup(TBROK);
+ }
+ tst_resm(TINFO, "parent: mq_send() succeeded");
+
+ /* Tell the child the message has been sent */
+ if (write(father_to_child[1], "f:ok", 5) != 5) {
+ tst_resm(TBROK, "father: pipe is broken(%s)", strerror(errno));
+ mq_close(mqd);
+ mq_unlink(mqname);
+ remove_pipe(father_to_child);
+ remove_pipe(child_to_father);
+ cleanup(TBROK);
+ }
+
+ /* Wait for child to finish */
+ if (wait(&status) == -1) {
+ tst_resm(TBROK, "parent: wait() failed(%s)", strerror(errno));
+ mq_close(mqd);
+ mq_unlink(mqname);
+ remove_pipe(father_to_child);
+ remove_pipe(child_to_father);
+ cleanup(TBROK);
+ }
+
+ mq_close(mqd);
+ mq_unlink(mqname);
+ close(child_to_father[0]);
+ close(father_to_child[1]);
+ cleanup(result);
+
+ /* NOT REACHED */
+ return 0;
+} /* End main */
--
------------------------------------------------------------------------------
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