* [LTP] [PATCH v3] fcntl/fcntl31.c: add I/O availability signals test for fcntl(2)
@ 2014-02-20 8:45 Xiaoguang Wang
2014-03-17 18:00 ` chrubis
0 siblings, 1 reply; 3+ messages in thread
From: Xiaoguang Wang @ 2014-02-20 8:45 UTC (permalink / raw)
To: ltp-list
Hi，please review this v2 patch and ignore the previous:)
create a new case to test F_GETOWN, F_SETOWN, F_GETOWN_EX,
F_SETOWN_EX, F_GETSIG, F_SETSIG for fcntl(2)
Signed-off-by: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
---
configure.ac | 1 +
m4/ltp-fcntl.m4 | 40 +++
runtest/ltplite | 1 +
runtest/stress.part3 | 1 +
runtest/syscalls | 2 +
testcases/kernel/syscalls/.gitignore | 2 +
testcases/kernel/syscalls/fcntl/fcntl31.c | 389 ++++++++++++++++++++++++++++++
7 files changed, 436 insertions(+)
create mode 100644 m4/ltp-fcntl.m4
create mode 100644 testcases/kernel/syscalls/fcntl/fcntl31.c
diff --git a/configure.ac b/configure.ac
index 89a86b3..dd162d6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -171,5 +171,6 @@ LTP_CHECK_KERNEL_DEVEL
LTP_CHECK_XFS_QUOTACTL
LTP_CHECK_CLONE_SUPPORTS_7_ARGS
LTP_CHECK_MKDIRAT
+LTP_CHECK_SYSCALL_FCNTL
AC_OUTPUT
diff --git a/m4/ltp-fcntl.m4 b/m4/ltp-fcntl.m4
new file mode 100644
index 0000000..6401bb8
--- /dev/null
+++ b/m4/ltp-fcntl.m4
@@ -0,0 +1,40 @@
+dnl
+dnl Copyright (c) 2014 Fujitsu Ltd.
+dnl Author: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
+dnl
+dnl This program is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 2 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+dnl the GNU General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software
+dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+dnl
+
+dnl
+dnl LTP_CHECK_SYSCALL_FCNTL
+dnl ----------------------------
+dnl
+AC_DEFUN([LTP_CHECK_SYSCALL_FCNTL],[dnl
+ AC_MSG_CHECKING([for fcntl f_owner_ex])
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+#define _GNU_SOURCE
+#include <fcntl.h>
+int main(void) {
+ struct f_owner_ex tst_own_ex;
+ return 0;
+}])],[has_f_owner_ex="yes"])
+
+if test "x$has_f_owner_ex" = xyes; then
+ AC_DEFINE(HAVE_STRUCT_F_OWNER_EX,1,[Define to 1 if you have struct f_owner_ex])
+ AC_MSG_RESULT(yes)
+else
+ AC_MSG_RESULT(no)
+fi
+])
diff --git a/runtest/ltplite b/runtest/ltplite
index c6d647d..6268dc4 100644
--- a/runtest/ltplite
+++ b/runtest/ltplite
@@ -225,6 +225,7 @@ fcntl26 fcntl26
# fcntl28 fcntl28
fcntl29 fcntl29
fcntl30 fcntl30
+fcntl31 fcntl31
fdatasync01 fdatasync01
fdatasync02 fdatasync02
diff --git a/runtest/stress.part3 b/runtest/stress.part3
index b9b8d7a..84b10a5 100644
--- a/runtest/stress.part3
+++ b/runtest/stress.part3
@@ -164,6 +164,7 @@ fcntl26 fcntl26
# fcntl28 fcntl28
fcntl29 fcntl29
fcntl30 fcntl30
+fcntl31 fcntl31
fdatasync01 fdatasync01
fdatasync02 fdatasync02
diff --git a/runtest/syscalls b/runtest/syscalls
index 13716d7..594a14c 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -256,6 +256,8 @@ fcntl29 fcntl29
fcntl29_64 fcntl29_64
fcntl30 fcntl30
fcntl30_64 fcntl30_64
+fcntl31 fcntl31
+fcntl31_64 fcntl31_64
fdatasync01 fdatasync01
fdatasync02 fdatasync02
diff --git a/testcases/kernel/syscalls/.gitignore b/testcases/kernel/syscalls/.gitignore
index 42b0eed..d847013 100644
--- a/testcases/kernel/syscalls/.gitignore
+++ b/testcases/kernel/syscalls/.gitignore
@@ -218,6 +218,8 @@
/fcntl/fcntl29_64
/fcntl/fcntl30
/fcntl/fcntl30_64
+/fcntl/fcntl31
+/fcntl/fcntl31_64
/fdatasync/fdatasync01
/fdatasync/fdatasync02
/flock/flock01
diff --git a/testcases/kernel/syscalls/fcntl/fcntl31.c b/testcases/kernel/syscalls/fcntl/fcntl31.c
new file mode 100644
index 0000000..0d3cb6c
--- /dev/null
+++ b/testcases/kernel/syscalls/fcntl/fcntl31.c
@@ -0,0 +1,389 @@
+/*
+ * Copyright (c) 2014 Fujitsu Ltd.
+ * Author: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * Description:
+ * Verify that:
+ * Basic test for fcntl(2) using F_GETOWN, F_SETOWN, F_GETOWN_EX,
+ * F_SETOWN_EX, F_GETSIG, F_SETSIG argument.
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <pwd.h>
+#include <sched.h>
+
+#include "test.h"
+#include "config.h"
+#include "usctest.h"
+#include "linux_syscall_numbers.h"
+#include "safe_macros.h"
+
+
+static void setup(void);
+static void cleanup(void);
+
+static void setown_pid_test(void);
+static void setown_pgrp_test(void);
+
+#if defined(HAVE_STRUCT_F_OWNER_EX)
+static int ownex_enabled;
+static char *ownex_tconf_msg = "F_GETOWN_EX and F_SETOWN_EX only run on "
+ "kernels that are 2.6.32 and higher";
+static void setownex_tid_test(void);
+static void setownex_pid_test(void);
+static void setownex_pgrp_test(void);
+
+static struct f_owner_ex orig_own_ex;
+#endif
+
+static void signal_parent(void);
+static void check_io_signal(char *des);
+static void test_set_and_get_sig(int sig, char *des);
+
+static pid_t pid;
+static pid_t orig_pid;
+static pid_t pgrp_pid;
+
+static struct timespec timeout;
+static sigset_t newset, oldset;
+
+static int test_fd;
+static int pipe_fds[2];
+
+static void (*testfunc[])(void) = {
+ setown_pid_test, setown_pgrp_test,
+#if defined(HAVE_STRUCT_F_OWNER_EX)
+ setownex_tid_test, setownex_pid_test, setownex_pgrp_test
+#endif
+};
+
+char *TCID = "fcntl31";
+int TST_TOTAL = ARRAY_SIZE(testfunc);
+
+
+int main(int ac, char **av)
+{
+ int lc, i;
+ char *msg;
+
+ msg = parse_opts(ac, av, NULL, NULL);
+ if (msg != NULL)
+ tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
+
+ setup();
+
+ for (lc = 0; TEST_LOOPING(lc); lc++) {
+ tst_count = 0;
+
+ for (i = 0; i < TST_TOTAL; i++)
+ (*testfunc[i])();
+ }
+
+ cleanup();
+ tst_exit();
+}
+
+static void setup(void)
+{
+ int ret;
+
+ tst_sig(FORK, DEF_HANDLER, cleanup);
+
+ TEST_PAUSE;
+
+ /* we have these tests on pipe */
+ SAFE_PIPE(cleanup, pipe_fds);
+ test_fd = pipe_fds[0];
+ if (fcntl(test_fd, F_SETFL, O_ASYNC) < 0)
+ tst_brkm(TBROK | TERRNO, cleanup, "fcntl set O_ASYNC failed");
+
+ pid = getpid();
+
+ ret = setpgrp();
+ if (ret < 0)
+ tst_brkm(TBROK | TERRNO, cleanup, "setpgrp() failed");
+ pgrp_pid = getpgid(0);
+ if (pgrp_pid < 0)
+ tst_brkm(TBROK | TERRNO, cleanup, "getpgid() failed");
+
+#if defined(HAVE_STRUCT_F_OWNER_EX)
+ if ((tst_kvercmp(2, 6, 32)) >= 0) {
+ ownex_enabled = 1;
+
+ /* get original f_owner_ex info */
+ TEST(fcntl(test_fd, F_GETOWN_EX, &orig_own_ex));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl get original f_owner_ex info failed");
+ }
+ }
+#endif
+
+ /* get original pid info */
+ TEST(fcntl(test_fd, F_GETOWN));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl get original pid info failed");
+ }
+ orig_pid = TEST_RETURN;
+
+ sigemptyset(&newset);
+ sigaddset(&newset, SIGUSR1);
+ sigaddset(&newset, SIGIO);
+
+ if (sigprocmask(SIG_SETMASK, &newset, &oldset) < 0)
+ tst_brkm(TBROK | TERRNO, cleanup, "sigprocmask failed");
+
+ timeout.tv_sec = 5;
+ timeout.tv_nsec = 0;
+}
+
+static void setown_pid_test(void)
+{
+ TEST(fcntl(test_fd, F_SETOWN, pid));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl(F_SETOWN) set process id failed");
+ }
+ test_set_and_get_sig(SIGUSR1, "F_GETOWN, F_SETOWN for process ID");
+
+ TEST(fcntl(test_fd, F_SETOWN, orig_pid));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl(F_SETOWN) restore orig_pid failed");
+ }
+}
+
+static void setown_pgrp_test(void)
+{
+ TEST(fcntl(test_fd, F_SETOWN, -pgrp_pid));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl(F_SETOWN) set process group id failed");
+ }
+ test_set_and_get_sig(SIGUSR1,
+ "F_GETOWN, F_SETOWN for process group ID");
+
+ TEST(fcntl(test_fd, F_SETOWN, orig_pid));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl(F_SETOWN) restore orig_pid failed");
+ }
+}
+
+#if defined(HAVE_STRUCT_F_OWNER_EX)
+static void setownex_cleanup(void)
+{
+ TEST(fcntl(test_fd, F_SETOWN_EX, &orig_own_ex));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl F_SETOWN_EX restore orig_own_ex failed");
+ }
+}
+
+static void setownex_tid_test(void)
+{
+ static struct f_owner_ex tst_own_ex;
+
+ if (ownex_enabled == 0) {
+ tst_resm(TCONF, ownex_tconf_msg);
+ return;
+ }
+
+ tst_own_ex.type = F_OWNER_TID;
+ tst_own_ex.pid = ltp_syscall(__NR_gettid);
+
+ TEST(fcntl(test_fd, F_SETOWN_EX, &tst_own_ex));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl F_SETOWN_EX failed");
+ }
+ test_set_and_get_sig(SIGUSR1, "F_GETOWN_EX, F_SETOWN_EX for thread ID");
+
+ setownex_cleanup();
+}
+
+static void setownex_pid_test(void)
+{
+ static struct f_owner_ex tst_own_ex;
+
+ if (ownex_enabled == 0) {
+ tst_resm(TCONF, ownex_tconf_msg);
+ return;
+ }
+
+ tst_own_ex.type = F_OWNER_PID;
+ tst_own_ex.pid = pid;
+
+ TEST(fcntl(test_fd, F_SETOWN_EX, &tst_own_ex));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl F_SETOWN_EX failed");
+ }
+ test_set_and_get_sig(SIGUSR1,
+ "F_GETOWN_EX, F_SETOWN_EX for process ID");
+
+ setownex_cleanup();
+}
+
+static void setownex_pgrp_test(void)
+{
+ static struct f_owner_ex tst_own_ex;
+
+ if (ownex_enabled == 0) {
+ tst_resm(TCONF, ownex_tconf_msg);
+ return;
+ }
+
+ tst_own_ex.type = F_OWNER_PGRP;
+ tst_own_ex.pid = pgrp_pid;
+
+ TEST(fcntl(test_fd, F_SETOWN_EX, &tst_own_ex));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl F_SETOWN_EX failed");
+ }
+ test_set_and_get_sig(SIGUSR1,
+ "F_GETOWN_EX, F_SETOWN_EX for process group ID");
+
+ setownex_cleanup();
+}
+#endif
+
+static void test_set_and_get_sig(int sig, char *des)
+{
+ int orig_sig;
+
+ TEST(fcntl(test_fd, F_GETSIG));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl(fd, F_GETSIG) get orig_sig failed");
+ }
+ orig_sig = TEST_RETURN;
+
+ if (orig_sig == 0 || orig_sig == SIGIO)
+ tst_resm(TINFO, "default io events signal is SIGIO");
+
+ TEST(fcntl(test_fd, F_SETSIG, sig));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl(fd, F_SETSIG, SIG: %d) failed", sig);
+ }
+
+ TEST(fcntl(test_fd, F_GETSIG));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl(fd, F_GETSIG) get the set signal failed");
+ }
+ if (TEST_RETURN != sig) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl F_SETSIG set SIG: %d failed", sig);
+ }
+
+ check_io_signal(des);
+
+ /* restore the default signal*/
+ TEST(fcntl(test_fd, F_SETSIG, orig_sig));
+ if (TEST_RETURN < 0) {
+ tst_brkm(TFAIL | TTERRNO, cleanup,
+ "fcntl restore default signal failed");
+ }
+}
+
+static void signal_parent(void)
+{
+ int ret, fd;
+
+ fd = pipe_fds[1];
+ close(pipe_fds[0]);
+
+ ret = setpgrp();
+ if (ret < 0) {
+ fprintf(stderr, "child process(%d) setpgrp() failed \n",
+ getpid());
+ }
+
+ ret = write(fd, "c", 1);
+
+ switch (ret) {
+ case 0:
+ fprintf(stderr, "No data written, something is wrong\n");
+ break;
+ case -1:
+ fprintf(stderr, "Failed to write to pipe: %s\n",
+ strerror(errno));
+ break;
+ }
+
+ close(fd);
+ return;
+}
+
+static void check_io_signal(char *des)
+{
+ int ret;
+ pid_t child;
+
+ child = tst_fork();
+ if (child < 0)
+ tst_brkm(TBROK | TERRNO, cleanup, "fork failed");
+
+ if (child == 0) {
+ signal_parent();
+ exit(0);
+ } else {
+ ret = sigtimedwait(&newset, NULL, &timeout);
+ if (ret == -1) {
+ tst_brkm(TBROK | TERRNO, NULL,
+ "sigtimedwait() failed.");
+ }
+
+ switch (ret) {
+ case SIGUSR1:
+ tst_resm(TPASS, "fcntl test %s success", des);
+ break;
+ case SIGIO:
+ tst_resm(TFAIL, "received default SIGIO, fcntl test "
+ "%s failed", des);
+ break;
+ default:
+ tst_brkm(TBROK, cleanup, "fcntl io events "
+ "signal mechanism work abnormally");
+ }
+ wait(NULL);
+ }
+}
+
+static void cleanup(void)
+{
+ TEST_CLEANUP;
+
+ if (sigprocmask(SIG_SETMASK, &oldset, NULL) < 0)
+ tst_resm(TWARN | TERRNO, "sigprocmask restore oldset failed");
+
+ if (pipe_fds[0] > 0 && close(pipe_fds[0]) == -1)
+ tst_resm(TWARN | TERRNO, "close(%d) failed", pipe_fds[0]);
+ if (pipe_fds[1] > 0 && close(pipe_fds[1]) == -1)
+ tst_resm(TWARN | TERRNO, "close(%d) failed", pipe_fds[1]);
+}
--
1.8.2.1
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^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [LTP] [PATCH v3] fcntl/fcntl31.c: add I/O availability signals test for fcntl(2)
2014-02-20 8:45 [LTP] [PATCH v3] fcntl/fcntl31.c: add I/O availability signals test for fcntl(2) Xiaoguang Wang
@ 2014-03-17 18:00 ` chrubis
[not found] ` <53292C9E.6080207@cn.fujitsu.com>
0 siblings, 1 reply; 3+ messages in thread
From: chrubis @ 2014-03-17 18:00 UTC (permalink / raw)
To: Xiaoguang Wang; +Cc: ltp-list
Hi!
> Hi???please review this v2 patch and ignore the previous:)
>
> create a new case to test F_GETOWN, F_SETOWN, F_GETOWN_EX,
> F_SETOWN_EX, F_GETSIG, F_SETSIG for fcntl(2)
>
...
> +static void setownex_pid_test(void)
> +{
> + static struct f_owner_ex tst_own_ex;
> +
> + if (ownex_enabled == 0) {
> + tst_resm(TCONF, ownex_tconf_msg);
We should change this to tst_resm(TCONF, "%s", ownex_tconf_msg);
otherwise this produces warnings because compiler cannot inspect the
format string...
> + return;
> + }
> +
> + tst_own_ex.type = F_OWNER_PID;
> + tst_own_ex.pid = pid;
> +
> + TEST(fcntl(test_fd, F_SETOWN_EX, &tst_own_ex));
> + if (TEST_RETURN < 0) {
> + tst_brkm(TFAIL | TTERRNO, cleanup,
> + "fcntl F_SETOWN_EX failed");
> + }
> + test_set_and_get_sig(SIGUSR1,
> + "F_GETOWN_EX, F_SETOWN_EX for process ID");
> +
> + setownex_cleanup();
> +}
...
> +static void signal_parent(void)
> +{
> + int ret, fd;
> +
> + fd = pipe_fds[1];
> + close(pipe_fds[0]);
> +
> + ret = setpgrp();
> + if (ret < 0) {
> + fprintf(stderr, "child process(%d) setpgrp() failed \n",
> + getpid());
> + }
> +
> + ret = write(fd, "c", 1);
> +
> + switch (ret) {
> + case 0:
> + fprintf(stderr, "No data written, something is wrong\n");
> + break;
> + case -1:
> + fprintf(stderr, "Failed to write to pipe: %s\n",
> + strerror(errno));
> + break;
> + }
> +
> + close(fd);
> + return;
> +}
> +
> +static void check_io_signal(char *des)
> +{
> + int ret;
> + pid_t child;
> +
> + child = tst_fork();
> + if (child < 0)
> + tst_brkm(TBROK | TERRNO, cleanup, "fork failed");
> +
> + if (child == 0) {
> + signal_parent();
> + exit(0);
> + } else {
> + ret = sigtimedwait(&newset, NULL, &timeout);
> + if (ret == -1) {
> + tst_brkm(TBROK | TERRNO, NULL,
> + "sigtimedwait() failed.");
> + }
> +
> + switch (ret) {
> + case SIGUSR1:
> + tst_resm(TPASS, "fcntl test %s success", des);
> + break;
> + case SIGIO:
> + tst_resm(TFAIL, "received default SIGIO, fcntl test "
> + "%s failed", des);
> + break;
> + default:
> + tst_brkm(TBROK, cleanup, "fcntl io events "
> + "signal mechanism work abnormally");
> + }
> + wait(NULL);
> + }
> +}
There is a problem with a pipe capacity, if you run the test with enough
iterations you will get failure beceause the child cannot write to the full
pipe.
fcntl31 1 TPASS : fcntl test F_GETOWN, F_SETOWN for process ID success
fcntl31 0 TINFO : default io events signal is SIGIO
fcntl31 2 TBROK : sigtimedwait() failed.: errno=EAGAIN(11): Resource temporarily unavailable
fcntl31 3 TBROK : Remaining cases broken
fcntl31 2 TBROK : unexpected signal 13 received (pid = 4293).
fcntl31 3 TBROK : Remaining cases broken
fcntl31 0 TWARN : close(3) failed: errno=EBADF(9): Bad file descriptor
I can reproduce the problem with:
$ ./fcntl31 -i 100000 &> log.txt
$ tail log.txt
You can easily fix this problem if you read the byte from pipe in the parent
process (before or after the wait()).
And there is a small synchronization problem too. If the write() in the
signal_parent() is entered before the parent sleeps in sigtimedwait() the
signal is lost and the test fails.
What we need to do is to ensure parents sleeps in sigtimedwait() before we
execute the write(). I guess that TST_PROCESS_STATE_WAIT() in child should work
here.
--
Cyril Hrubis
chrubis@suse.cz
------------------------------------------------------------------------------
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-02-20 8:45 [LTP] [PATCH v3] fcntl/fcntl31.c: add I/O availability signals test for fcntl(2) Xiaoguang Wang
2014-03-17 18:00 ` chrubis
[not found] ` <53292C9E.6080207@cn.fujitsu.com>
2014-03-19 13:31 ` chrubis
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