* [LTP] [PATCH v2 1/1] syscalls/mq_open: fix old tests + convert to use new API
@ 2016-12-06 8:19 Petr Vorel
2016-12-06 12:31 ` Cyril Hrubis
0 siblings, 1 reply; 2+ messages in thread
From: Petr Vorel @ 2016-12-06 8:19 UTC (permalink / raw)
To: ltp
Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
Changes v1->v2:
* Fix using ttype constants.
* Getting struct passwd with SAFE_GETPWNAM() in setup().
* Using only single non-root user => have it as int flag in struct test_case.
---
testcases/kernel/syscalls/mq_open/mq_open01.c | 602 ++++++++++----------------
testcases/kernel/syscalls/utils/common_j_h.c | 107 -----
testcases/kernel/syscalls/utils/include_j_h.h | 6 -
3 files changed, 230 insertions(+), 485 deletions(-)
diff --git a/testcases/kernel/syscalls/mq_open/mq_open01.c b/testcases/kernel/syscalls/mq_open/mq_open01.c
index 1ab818535..5ac6abcde 100644
--- a/testcases/kernel/syscalls/mq_open/mq_open01.c
+++ b/testcases/kernel/syscalls/mq_open/mq_open01.c
@@ -1,129 +1,43 @@
-/******************************************************************************/
-/* Copyright (c) Crackerjack Project., 2007-2008 ,Hitachi, Ltd */
-/* Author(s): Takahiro Yasui <takahiro.yasui.mp@hitachi.com>, */
-/* Yumiko Sugita <yumiko.sugita.yf@hitachi.com>, */
-/* Satoshi Fujiwara <sa-fuji@sdl.hitachi.co.jp> */
-/* */
-/* 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: mq_open01.c */
-/* */
-/* Description: This tests the mq_open() syscall */
-/* */
-/* */
-/* */
-/* */
-/* */
-/* */
-/* Usage: <for command-line> */
-/* mq_open01 [-c n] [-e][-i n] [-I x] [-p x] [-t] */
-/* where, -c n : Run n copies concurrently. */
-/* -e : Turn on errno logging. */
-/* -i n : Execute test n times. */
-/* -I x : Execute test for x seconds. */
-/* -P x : Pause for x seconds between iterations. */
-/* -t : Turn on syscall timing. */
-/* */
-/* Total Tests: 1 */
-/* */
-/* Test Name: mq_open01 */
-/* History: Porting from Crackerjack to LTP is done by */
-/* Manas Kumar Nayak maknayak@in.ibm.com> */
-/******************************************************************************/
-#include <sys/syscall.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/uio.h>
-#include <getopt.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <mqueue.h>
-#include <limits.h>
+/*
+ * Copyright (c) Crackerjack Project., 2007-2008 ,Hitachi, Ltd
+ * Author(s): Takahiro Yasui <takahiro.yasui.mp@hitachi.com>,
+ * Yumiko Sugita <yumiko.sugita.yf@hitachi.com>,
+ * Satoshi Fujiwara <sa-fuji@sdl.hitachi.co.jp>
+ * Copyright (c) 2016 Linux Test Project
+ *
+ * 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 would 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 the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
-#include "../utils/include_j_h.h"
-#include "../utils/common_j_h.c"
+#include <pwd.h>
+#include <mqueue.h>
-#include "test.h"
+#include "tst_test.h"
#include "linux_syscall_numbers.h"
-char *TCID = "mq_open01";
-int testno;
-int TST_TOTAL = 1;
-
-/* Extern Global Functions */
-/******************************************************************************/
-/* */
-/* Function: cleanup */
-/* */
-/* Description: Performs all one time clean up for this test on successful */
-/* completion, premature exit or failure. Closes all temporary */
-/* files, removes all temporary directories exits the test with */
-/* appropriate return code by calling tst_exit() function. */
-/* */
-/* Input: None. */
-/* */
-/* Output: None. */
-/* */
-/* Return: On failure - Exits calling tst_exit(). Non '0' return code. */
-/* On success - Exits calling tst_exit(). With '0' return code. */
-/* */
-/******************************************************************************/
-void cleanup(void)
-{
+#define FILE_SCANF(path, fmt, ...) \
+ file_scanf(__FILE__, __LINE__, \
+ (path), (fmt), ## __VA_ARGS__)
- tst_rmdir();
-}
+#define FILE_PRINTF(path, fmt, ...) \
+ file_printf(__FILE__, __LINE__, \
+ (path), (fmt), ## __VA_ARGS__)
-/* Local Functions */
-/******************************************************************************/
-/* */
-/* Function: setup */
-/* */
-/* Description: Performs all one time setup for this test. This function is */
-/* typically used to capture signals, create temporary dirs */
-/* and temporary files that may be used in the course of this */
-/* test. */
-/* */
-/* Input: None. */
-/* */
-/* Output: None. */
-/* */
-/* Return: On failure - Exits by calling cleanup(). */
-/* On success - returns 0. */
-/* */
-/******************************************************************************/
-void setup(void)
-{
- tst_require_root();
-
- /* Capture signals if any */
- /* Create temporary directories */
- TEST_PAUSE;
- tst_tmpdir();
-}
+#define QUEUE_NAME "/test_mqueue"
-/*
- * Macros
- */
-#define SYSCALL_NAME "mq_open"
+static uid_t euid;
+static struct passwd *pw;
enum test_type {
NORMAL,
@@ -131,307 +45,251 @@ enum test_type {
NO_SPACE,
};
-/*
- * Data Structure
- */
+#define TYPE_NAME(x) .ttype = x, .desc = #x
struct test_case {
int ttype;
- char *user;
+ const char *desc;
+ int as_nobody;
char *qname;
int oflag;
- long mq_maxmsg; // Maximum numebr of messages.
- long mq_msgsize; // Maximum message size.
+ long mq_maxmsg; /* max number of messages */
+ long mq_msgsize; /* max message size */
int ret;
int err;
};
-#define ULIMIT_FNUM 0
+#define NOFILE_LIMIT 0
#define PROC_MAX_QUEUES "/proc/sys/fs/mqueue/queues_max"
-/* Test cases
- *
- * test status of errors on man page
- *
- * EACCES v (permission is denied)
- * EEXIST v (named message queue already exists)
- * EINTR --- (interrupted by a signal)
- * EINVAL v (not supported for the given name, or invalid
- * arguments)
- * EMFILE v (process file table overflow)
- * ENAMETOOLONG v (too long name length)
- * ENFILE can't check because it's difficult to create no-fd
- * ENOENT v (O_CREAT is not set and the named message queue
- * does not exist)
- * ENOSPC v (no space for the new message queue)
- */
-
static struct test_case tcase[] = {
-#if 1
- { // case00
- .ttype = NORMAL,
- .qname = QUEUE_NAME,
- .oflag = O_CREAT,
- .mq_maxmsg = 20,
- .mq_msgsize = 16384,
- .ret = 0,
- .err = 0,
- },
-#else
- { // case00
- .ttype = NORMAL,
- .qname = QUEUE_NAME,
- .oflag = O_CREAT,
- .ret = 0,
- .err = 0,
- },
- { // case01
- .ttype = NORMAL,
- // 0 1 2 3
- // 0123456789012345678901234567890123456789
- "aaaaaaaaaaaaaaa",
- .oflag = O_CREAT,
- .ret = 0,
- .err = 0,
- },
- { // case02
- .ttype = NORMAL,
- // 0 1 2 3
- // 0123456789012345678901234567890123456789
- "aaaaaaaaaaaaaaaa",
- .oflag = O_CREAT,
- .ret = -1,
- .err = ENAMETOOLONG,
- },
-
- { // case03
- .ttype = NORMAL,
- .qname = "",
- .oflag = O_CREAT,
- .ret = -1,
- .err = EINVAL,
- },
- { // case04
- .ttype = NORMAL,
- .user = "nobody",
- .qname = QUEUE_NAME,
- .ret = -1,
- .err = EACCES,
- },
- { // case05
- .ttype = NORMAL,
- .qname = QUEUE_NAME,
- .oflag = O_CREAT | O_EXCL,
- .ret = -1,
- .err = EEXIST,
- },
- { // case06
- .ttype = NO_FILE,
- .qname = QUEUE_NAME,
- .oflag = O_CREAT,
- .ret = -1,
- .err = EMFILE,
- },
- { // case07
- .ttype = NORMAL,
- .qname = "/notexist",
- .oflag = 0,
- .ret = -1,
- .err = ENOENT,
- },
-
- { // case08
- .ttype = NO_SPACE,
- .user = "nobody",
- .qname = QUEUE_NAME,
- .oflag = O_CREAT,
- .ret = -1,
- .err = ENOSPC,
- },
-#endif
+ {
+ TYPE_NAME(NORMAL),
+ .qname = QUEUE_NAME,
+ .oflag = O_CREAT,
+ .mq_maxmsg = 20,
+ .mq_msgsize = 16384,
+ .ret = 0,
+ .err = 0,
+ },
+ {
+ TYPE_NAME(NORMAL),
+ .qname = QUEUE_NAME,
+ .oflag = O_CREAT,
+ .ret = 0,
+ .err = 0,
+ },
+ {
+ TYPE_NAME(NORMAL),
+ .qname = "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaa",
+ .oflag = O_CREAT,
+ .ret = 0,
+ .err = 0,
+ },
+ {
+ TYPE_NAME(NORMAL),
+ .qname = "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+ "aaaaaaaaaaaaaaaa",
+ .oflag = O_CREAT,
+ .ret = -1,
+ .err = ENAMETOOLONG,
+ },
+
+ {
+ TYPE_NAME(NORMAL),
+ .qname = "",
+ .oflag = O_CREAT,
+ .ret = -1,
+ .err = EINVAL,
+ },
+ {
+ TYPE_NAME(NORMAL),
+ .as_nobody = 1,
+ .qname = QUEUE_NAME,
+ .ret = -1,
+ .err = EACCES,
+ },
+ {
+ TYPE_NAME(NORMAL),
+ .qname = QUEUE_NAME,
+ .oflag = O_CREAT | O_EXCL,
+ .ret = -1,
+ .err = EEXIST,
+ },
+ {
+ TYPE_NAME(NO_FILE),
+ .qname = QUEUE_NAME,
+ .oflag = O_CREAT,
+ .ret = -1,
+ .err = EMFILE,
+ },
+ {
+ TYPE_NAME(NORMAL),
+ .qname = "/notexist",
+ .oflag = 0,
+ .ret = -1,
+ .err = ENOENT,
+ },
+ {
+ TYPE_NAME(NO_SPACE),
+ .as_nobody = 1,
+ .qname = QUEUE_NAME,
+ .oflag = O_CREAT,
+ .ret = -1,
+ .err = ENOSPC,
+ }
};
-/*
- * do_test()
- *
- * Input : TestCase Data
- * Return : RESULT_OK(0), RESULT_NG(1)
- *
- */
+void setup(void)
+{
+ euid = geteuid();
+ pw = SAFE_GETPWNAM("nobody");
+}
-static int do_test(struct test_case *tc)
+static void do_test(unsigned int i)
{
- int sys_ret;
- int sys_errno;
- int result = RESULT_OK;
- int rc, fd1 = -1, fd2 = -1, cmp_ok = 1;
- uid_t old_uid = -1;
- rlim_t oldlim = -1;
- int oldval = -1;
+ struct test_case *tc = &tcase[i];
+ struct rlimit rlim;
+ int oldlim = -1;
+
+ int max_queues;
+
+ int fd1 = -1, fd2 = -1;
struct mq_attr new, old, *p_attr;
+ tst_res(TINFO, "queue name \"%s\"", tc->qname);
+
/*
* When test ended with SIGTERM etc, mq descriptor is left remains.
* So we delete it first.
*/
- TEST(mq_unlink(QUEUE_NAME));
+ mq_unlink(QUEUE_NAME);
- /*
- * Execute system call
- */
-
- if (tc->ttype != NO_SPACE && !(tc->oflag & O_CREAT)) {
- errno = 0;
- TEST(sys_ret =
- mq_open(QUEUE_NAME, O_CREAT | O_EXCL | O_RDWR, S_IRWXU,
- NULL));
- sys_errno = errno;
- if (sys_ret < 0)
+ if (tc->ttype != NO_SPACE &&
+ (!(tc->oflag & O_CREAT) || tc->oflag & O_EXCL)) {
+ TEST(fd1 = mq_open(QUEUE_NAME, O_CREAT | O_EXCL | O_RDWR,
+ S_IRWXU, NULL));
+ if (fd1 < 0)
goto TEST_END;
- fd1 = sys_ret;
}
+
if (tc->ttype == NO_FILE) {
- TEST(rc = setup_ulimit_fnum(ULIMIT_FNUM, &oldlim));
- if (rc < 0) {
- result = 1;
- goto EXIT;
+ if (getrlimit(RLIMIT_NOFILE, &rlim) == -1) {
+ tst_res(TBROK | TERRNO, "getrlimit failed");
+ goto CLEANUP;
+ }
+ if (rlim.rlim_cur > NOFILE_LIMIT) {
+ oldlim = rlim.rlim_cur;
+ rlim.rlim_cur = NOFILE_LIMIT;
+ if (setrlimit(RLIMIT_NOFILE, &rlim) == -1) {
+ tst_res(TBROK | TERRNO, "setrlimit %d to %ld failed",
+ RLIMIT_NOFILE, rlim.rlim_cur);
+ goto CLEANUP;
+ }
}
}
- /*
- * Change /proc/sys/fs/mqueue/queues_max
- */
if (tc->ttype == NO_SPACE) {
- TEST(rc = setup_proc_fs(PROC_MAX_QUEUES, 0, &oldval));
- if (rc < 0) {
- result = 1;
- goto EXIT;
+ if (FILE_SCANF(PROC_MAX_QUEUES, "%d", &max_queues)) {
+ tst_res(TBROK | TERRNO, "Read %s failed",
+ PROC_MAX_QUEUES);
+ goto CLEANUP;
+ }
+ if (FILE_PRINTF(PROC_MAX_QUEUES, "%d", 0)) {
+ tst_res(TBROK | TERRNO, "Write %s failed",
+ PROC_MAX_QUEUES);
+ goto CLEANUP;
}
}
- /*
- * Change effective user id
- */
- if (tc->user != NULL) {
- TEST(rc = setup_euid(tc->user, &old_uid));
- if (rc < 0) {
- result = 1;
- goto EXIT;
- }
+ if (tc->as_nobody && seteuid(pw->pw_uid)) {
+ tst_res(TBROK | TERRNO, "seteuid failed");
+ goto CLEANUP;
}
- /*
- * Execute system call
- */
- //tst_resm(TINFO,"PATH_MAX: %d\n", PATH_MAX);
- //tst_resm(TINFO,"NAME_MAX: %d", NAME_MAX);
p_attr = NULL;
if (tc->mq_maxmsg || tc->mq_msgsize) {
new.mq_maxmsg = tc->mq_maxmsg;
new.mq_msgsize = tc->mq_msgsize;
p_attr = &new;
}
- errno = 0;
+
if (tc->oflag & O_CREAT)
- TEST(sys_ret = mq_open(tc->qname, tc->oflag, S_IRWXU, p_attr));
+ TEST(fd2 = mq_open(tc->qname, tc->oflag, S_IRWXU, p_attr));
else
- TEST(sys_ret = mq_open(tc->qname, tc->oflag));
- sys_errno = errno;
- if (sys_ret < 0)
- goto TEST_END;
- fd2 = sys_ret;
-
- if (p_attr) {
- TEST(rc = ltp_syscall(__NR_mq_getsetattr, fd2, NULL, &old));
- if (TEST_RETURN < 0) {
- tst_resm(TFAIL,
- "mq_getsetattr failed - errno = %d : %s",
- TEST_ERRNO, strerror(TEST_ERRNO));
- result = 1;
- goto EXIT;
+ TEST(fd2 = mq_open(tc->qname, tc->oflag));
+
+ if (fd2 > 0 && p_attr) {
+ if (tst_syscall(__NR_mq_getsetattr, fd2, NULL, &old) < 0) {
+ tst_res(TFAIL | TERRNO, "mq_getsetattr failed");
+ goto CLEANUP;
+ }
+
+ if (old.mq_maxmsg != new.mq_maxmsg
+ || old.mq_msgsize != new.mq_msgsize) {
+ tst_res(TFAIL | TERRNO, "wrong mq_attr: "
+ "mq_maxmsg expected %ld return %ld, "
+ "mq_msgsize expected %ld return %ld",
+ new.mq_maxmsg, old.mq_maxmsg, new.mq_msgsize,
+ old.mq_msgsize);
+ goto CLEANUP;
}
- tst_resm(TINFO, "mq_maxmsg E:%ld,\tR:%ld", new.mq_maxmsg,
- old.mq_maxmsg);
- tst_resm(TINFO, "mq_msgsize E:%ld,\tR:%ld", new.mq_msgsize,
- old.mq_msgsize);
- cmp_ok = old.mq_maxmsg == new.mq_maxmsg
- && old.mq_msgsize == new.mq_msgsize;
}
TEST_END:
- /*
- * Check results
- */
- result |= (sys_errno != tc->err) || !cmp_ok;
- PRINT_RESULT_CMP(sys_ret >= 0, tc->ret, tc->err, sys_ret, sys_errno,
- cmp_ok);
-
-EXIT:
- if (tc->user != NULL && old_uid != -1)
- TEST(cleanup_euid(old_uid));
-
- if (tc->ttype == NO_SPACE && oldval != -1)
- TEST(cleanup_proc_fs(PROC_MAX_QUEUES, oldval));
-
- if (tc->ttype == NO_FILE && oldlim != -1)
- TEST(cleanup_ulimit_fnum(oldlim));
- if (fd1 >= 0)
- TEST(close(fd1));
- if (fd2 >= 0)
- TEST(close(fd2));
- if (fd1 >= 0)
- TEST(mq_unlink(QUEUE_NAME));
- if (fd2 >= 0 && strcmp(tc->qname, QUEUE_NAME) != 0)
- TEST(mq_unlink(tc->qname));
-
- return result;
-}
-
-/*
- * main()
- */
+ if (TEST_ERRNO != tc->err || (tc->ret < 0 && TEST_RETURN != tc->ret) ||
+ (tc->ret >= 0 && TEST_RETURN < 0)) {
+ tst_res(TFAIL | TTERRNO, "%s returned: %ld, "
+ "expected: %d, expected errno: %s (%d)", tc->desc,
+ TEST_RETURN, tc->ret, tst_strerrno(tc->err), tc->err);
+ } else {
+ tst_res(TPASS | TTERRNO, "%s returned: %ld", tc->desc,
+ TEST_RETURN);
+ }
-int main(int ac, char **av)
-{
- int result = RESULT_OK;
- int i;
- int lc;
-
- tst_parse_opts(ac, av, NULL, NULL);
-
- setup();
-
- for (lc = 0; TEST_LOOPING(lc); ++lc) {
- tst_count = 0;
- for (testno = 0; testno < TST_TOTAL; ++testno) {
-
- /*
- * Execute test
- */
- for (i = 0; i < (int)ARRAY_SIZE(tcase); i++) {
- int ret;
- tst_resm(TINFO, "(case%02d) START", i);
- ret = do_test(&tcase[i]);
- tst_resm(TINFO, "(case%02d) END => %s", i,
- (ret == 0) ? "OK" : "NG");
- result |= ret;
- }
+CLEANUP:
+ if (tc->as_nobody && seteuid(euid) == -1)
+ tst_res(TWARN | TERRNO, "seteuid back to %d failed", euid);
- /*
- * Check results
- */
- switch (result) {
- case RESULT_OK:
- tst_resm(TPASS, "mq_open call succeeded ");
- break;
-
- default:
- tst_brkm(TFAIL | TTERRNO, cleanup,
- "mq_open failed");
- break;
- }
+ if (tc->ttype == NO_SPACE && max_queues != -1 &&
+ FILE_PRINTF(PROC_MAX_QUEUES, "%d", max_queues))
+ tst_res(TWARN | TERRNO, "restoring max_queues back to %d failed",
+ max_queues);
- }
+ if (tc->ttype == NO_FILE && oldlim != -1) {
+ rlim.rlim_cur = oldlim;
+ if (setrlimit(RLIMIT_NOFILE, &rlim) == -1)
+ tst_res(TWARN | TERRNO, "Restore limit %d back to %lu failed",
+ RLIMIT_NOFILE, rlim.rlim_cur);
}
- cleanup();
- tst_exit();
+
+ if (fd1 > 0 && close(fd1))
+ tst_res(TWARN | TTERRNO, "close(fd1) failed");
+
+ if (fd2 > 0 && close(fd2))
+ tst_res(TWARN | TTERRNO, "close(fd2) failed");
+
+ if (fd1 > 0)
+ mq_unlink(QUEUE_NAME);
+
+ if (fd2 > 0 && strcmp(tc->qname, QUEUE_NAME) != 0)
+ mq_unlink(tc->qname);
}
+
+static struct tst_test test = {
+ .tid = "mq_open01",
+ .tcnt = ARRAY_SIZE(tcase),
+ .test = do_test,
+ .needs_root = 1,
+ .setup = setup,
+};
diff --git a/testcases/kernel/syscalls/utils/common_j_h.c b/testcases/kernel/syscalls/utils/common_j_h.c
index 43165ca20..dbdbc117a 100644
--- a/testcases/kernel/syscalls/utils/common_j_h.c
+++ b/testcases/kernel/syscalls/utils/common_j_h.c
@@ -227,113 +227,6 @@ int cleanup_swapfile(char *path)
return 0;
}
-/*
- * Change user limit that the calling process can open
- */
-int setup_ulimit_fnum(rlim_t newlim, rlim_t * oldlim)
-{
- int rc;
- struct rlimit rlim;
-
- rc = getrlimit(RLIMIT_NOFILE, &rlim);
- if (rc < 0) {
- EPRINTF("getrlimit failed.\n");
- return -1;
- }
- *oldlim = rlim.rlim_cur;
- if (newlim > rlim.rlim_max) {
- EPRINTF("can't set ulimit value: %ld.\n", newlim);
- return -1;
- }
- rlim.rlim_cur = newlim;
- rc = setrlimit(RLIMIT_NOFILE, &rlim);
- if (rc < 0) {
- EPRINTF("setrlimit failed.\n");
- return -1;
- }
- return 0;
-}
-
-int cleanup_ulimit_fnum(rlim_t oldlim)
-{
- int rc;
- struct rlimit rlim;
-
- rc = getrlimit(RLIMIT_NOFILE, &rlim);
- if (rc < 0) {
- EPRINTF("getrlimit failed.\n");
- return -1;
- }
- if (oldlim > rlim.rlim_max) {
- EPRINTF("can't set ulimit value: %ld.\n", oldlim);
- return -1;
- }
- rlim.rlim_cur = oldlim;
- rc = setrlimit(RLIMIT_NOFILE, &rlim);
- if (rc < 0) {
- EPRINTF("setrlimit failed.\n");
- return -1;
- }
- return 0;
-}
-
-/*
- * Change /proc or /sys setting
- */
-int setup_proc_fs(char *path, int newval, int *oldval)
-{
- int fd = -1, rc, len;
- char buf[32];
-
- fd = open(path, O_RDWR);
- if (fd < 0) {
- EPRINTF("open %s failed.\n", path);
- return -1;
- }
-
- do {
- rc = read(fd, buf, 32);
- } while (rc < 0 && errno == EAGAIN);
- if (rc < 0) {
- EPRINTF("read failed.\n");
- close(fd);
- return -1;
- }
-
- *oldval = atoi(buf);
- sprintf(buf, "%d\n", newval);
- len = strlen(buf);
- rc = write(fd, buf, len);
- close(fd);
- if (rc != len) {
- EPRINTF("write failed.\n");
- return -1;
- }
- return 0;
-}
-
-int cleanup_proc_fs(char *path, int oldval)
-{
- int fd = -1, rc, len;
- char buf[32];
-
- fd = open(path, O_RDWR);
- if (fd < 0) {
- EPRINTF("open %s failed.\n", path);
- return -1;
- }
-
- sprintf(buf, "%d\n", oldval);
- len = strlen(buf);
- rc = write(fd, buf, len);
- close(fd);
- if (rc != len) {
- EPRINTF("write failed.\n");
- return -1;
- }
- return 0;
-}
-
#if 0
/*
* Check max nodes from /sys/devices/system/node/node* files (for NUMA)
diff --git a/testcases/kernel/syscalls/utils/include_j_h.h b/testcases/kernel/syscalls/utils/include_j_h.h
index ff6aaf42d..742d96401 100644
--- a/testcases/kernel/syscalls/utils/include_j_h.h
+++ b/testcases/kernel/syscalls/utils/include_j_h.h
@@ -135,12 +135,6 @@ int cleanup_file(char *path);
int setup_swapfile(char *testdir, char *fname, char *path, size_t size);
int cleanup_swapfile(char *path);
-int setup_ulimit_fnum(rlim_t newlim, rlim_t *oldlim);
-int cleanup_ulimit_fnum(rlim_t oldlim);
-
-int setup_proc_fs(char *path, int newval, int *oldval);
-int cleanup_proc_fs(char *path, int oldval);
-
#define QUEUE_NAME "/test_mqueue"
pid_t create_echo_msg_proc(void);
--
2.11.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [LTP] [PATCH v2 1/1] syscalls/mq_open: fix old tests + convert to use new API
2016-12-06 8:19 [LTP] [PATCH v2 1/1] syscalls/mq_open: fix old tests + convert to use new API Petr Vorel
@ 2016-12-06 12:31 ` Cyril Hrubis
0 siblings, 0 replies; 2+ messages in thread
From: Cyril Hrubis @ 2016-12-06 12:31 UTC (permalink / raw)
To: ltp
Hi!
> +#define FILE_SCANF(path, fmt, ...) \
> + file_scanf(__FILE__, __LINE__, \
> + (path), (fmt), ## __VA_ARGS__)
>
> - tst_rmdir();
> -}
> +#define FILE_PRINTF(path, fmt, ...) \
> + file_printf(__FILE__, __LINE__, \
> + (path), (fmt), ## __VA_ARGS__)
If needed these should rather be added into the
include/tst_safe_file_ops.h
However these versions without the SAFE_ in name (these are the ones
that will not call tst_brk()) are supposed to be used in the test
cleanup only. You are supposed to use use SAFE_MACROS() as much as
possible as that simplifies the code quite a lot...
> -static int do_test(struct test_case *tc)
> +static void do_test(unsigned int i)
> {
> - int sys_ret;
> - int sys_errno;
> - int result = RESULT_OK;
> - int rc, fd1 = -1, fd2 = -1, cmp_ok = 1;
> - uid_t old_uid = -1;
> - rlim_t oldlim = -1;
> - int oldval = -1;
> + struct test_case *tc = &tcase[i];
> + struct rlimit rlim;
> + int oldlim = -1;
> +
> + int max_queues;
> +
> + int fd1 = -1, fd2 = -1;
> struct mq_attr new, old, *p_attr;
>
> + tst_res(TINFO, "queue name \"%s\"", tc->qname);
> +
> /*
> * When test ended with SIGTERM etc, mq descriptor is left remains.
> * So we delete it first.
> */
> - TEST(mq_unlink(QUEUE_NAME));
> + mq_unlink(QUEUE_NAME);
>
> - /*
> - * Execute system call
> - */
> -
> - if (tc->ttype != NO_SPACE && !(tc->oflag & O_CREAT)) {
> - errno = 0;
> - TEST(sys_ret =
> - mq_open(QUEUE_NAME, O_CREAT | O_EXCL | O_RDWR, S_IRWXU,
> - NULL));
> - sys_errno = errno;
> - if (sys_ret < 0)
> + if (tc->ttype != NO_SPACE &&
> + (!(tc->oflag & O_CREAT) || tc->oflag & O_EXCL)) {
> + TEST(fd1 = mq_open(QUEUE_NAME, O_CREAT | O_EXCL | O_RDWR,
> + S_IRWXU, NULL));
> + if (fd1 < 0)
> goto TEST_END;
> - fd1 = sys_ret;
> }
> +
> if (tc->ttype == NO_FILE) {
> - TEST(rc = setup_ulimit_fnum(ULIMIT_FNUM, &oldlim));
> - if (rc < 0) {
> - result = 1;
> - goto EXIT;
> + if (getrlimit(RLIMIT_NOFILE, &rlim) == -1) {
> + tst_res(TBROK | TERRNO, "getrlimit failed");
> + goto CLEANUP;
> + }
> + if (rlim.rlim_cur > NOFILE_LIMIT) {
> + oldlim = rlim.rlim_cur;
> + rlim.rlim_cur = NOFILE_LIMIT;
> + if (setrlimit(RLIMIT_NOFILE, &rlim) == -1) {
> + tst_res(TBROK | TERRNO, "setrlimit %d to %ld failed",
> + RLIMIT_NOFILE, rlim.rlim_cur);
> + goto CLEANUP;
> + }
> }
> }
>
> - /*
> - * Change /proc/sys/fs/mqueue/queues_max
> - */
> if (tc->ttype == NO_SPACE) {
> - TEST(rc = setup_proc_fs(PROC_MAX_QUEUES, 0, &oldval));
> - if (rc < 0) {
> - result = 1;
> - goto EXIT;
> + if (FILE_SCANF(PROC_MAX_QUEUES, "%d", &max_queues)) {
> + tst_res(TBROK | TERRNO, "Read %s failed",
> + PROC_MAX_QUEUES);
> + goto CLEANUP;
> + }
> + if (FILE_PRINTF(PROC_MAX_QUEUES, "%d", 0)) {
> + tst_res(TBROK | TERRNO, "Write %s failed",
> + PROC_MAX_QUEUES);
> + goto CLEANUP;
> }
> }
>
> - /*
> - * Change effective user id
> - */
> - if (tc->user != NULL) {
> - TEST(rc = setup_euid(tc->user, &old_uid));
> - if (rc < 0) {
> - result = 1;
> - goto EXIT;
> - }
> + if (tc->as_nobody && seteuid(pw->pw_uid)) {
> + tst_res(TBROK | TERRNO, "seteuid failed");
> + goto CLEANUP;
> }
>
> - /*
> - * Execute system call
> - */
> - //tst_resm(TINFO,"PATH_MAX: %d\n", PATH_MAX);
> - //tst_resm(TINFO,"NAME_MAX: %d", NAME_MAX);
> p_attr = NULL;
> if (tc->mq_maxmsg || tc->mq_msgsize) {
> new.mq_maxmsg = tc->mq_maxmsg;
> new.mq_msgsize = tc->mq_msgsize;
> p_attr = &new;
> }
> - errno = 0;
> +
> if (tc->oflag & O_CREAT)
> - TEST(sys_ret = mq_open(tc->qname, tc->oflag, S_IRWXU, p_attr));
> + TEST(fd2 = mq_open(tc->qname, tc->oflag, S_IRWXU, p_attr));
> else
> - TEST(sys_ret = mq_open(tc->qname, tc->oflag));
> - sys_errno = errno;
> - if (sys_ret < 0)
> - goto TEST_END;
> - fd2 = sys_ret;
> -
> - if (p_attr) {
> - TEST(rc = ltp_syscall(__NR_mq_getsetattr, fd2, NULL, &old));
> - if (TEST_RETURN < 0) {
> - tst_resm(TFAIL,
> - "mq_getsetattr failed - errno = %d : %s",
> - TEST_ERRNO, strerror(TEST_ERRNO));
> - result = 1;
> - goto EXIT;
> + TEST(fd2 = mq_open(tc->qname, tc->oflag));
> +
> + if (fd2 > 0 && p_attr) {
> + if (tst_syscall(__NR_mq_getsetattr, fd2, NULL, &old) < 0) {
> + tst_res(TFAIL | TERRNO, "mq_getsetattr failed");
> + goto CLEANUP;
> + }
Hmm, we should rather call mq_getattr() here, or is there a reason to
call the raw syscall instead of the library function?
> + if (old.mq_maxmsg != new.mq_maxmsg
> + || old.mq_msgsize != new.mq_msgsize) {
> + tst_res(TFAIL | TERRNO, "wrong mq_attr: "
> + "mq_maxmsg expected %ld return %ld, "
> + "mq_msgsize expected %ld return %ld",
> + new.mq_maxmsg, old.mq_maxmsg, new.mq_msgsize,
> + old.mq_msgsize);
> + goto CLEANUP;
> }
> - tst_resm(TINFO, "mq_maxmsg E:%ld,\tR:%ld", new.mq_maxmsg,
> - old.mq_maxmsg);
> - tst_resm(TINFO, "mq_msgsize E:%ld,\tR:%ld", new.mq_msgsize,
> - old.mq_msgsize);
> - cmp_ok = old.mq_maxmsg == new.mq_maxmsg
> - && old.mq_msgsize == new.mq_msgsize;
> }
>
> TEST_END:
> - /*
> - * Check results
> - */
> - result |= (sys_errno != tc->err) || !cmp_ok;
> - PRINT_RESULT_CMP(sys_ret >= 0, tc->ret, tc->err, sys_ret, sys_errno,
> - cmp_ok);
> -
> -EXIT:
> - if (tc->user != NULL && old_uid != -1)
> - TEST(cleanup_euid(old_uid));
> -
> - if (tc->ttype == NO_SPACE && oldval != -1)
> - TEST(cleanup_proc_fs(PROC_MAX_QUEUES, oldval));
> -
> - if (tc->ttype == NO_FILE && oldlim != -1)
> - TEST(cleanup_ulimit_fnum(oldlim));
> - if (fd1 >= 0)
> - TEST(close(fd1));
> - if (fd2 >= 0)
> - TEST(close(fd2));
> - if (fd1 >= 0)
> - TEST(mq_unlink(QUEUE_NAME));
> - if (fd2 >= 0 && strcmp(tc->qname, QUEUE_NAME) != 0)
> - TEST(mq_unlink(tc->qname));
> -
> - return result;
> -}
> -
> -/*
> - * main()
> - */
> + if (TEST_ERRNO != tc->err || (tc->ret < 0 && TEST_RETURN != tc->ret) ||
> + (tc->ret >= 0 && TEST_RETURN < 0)) {
> + tst_res(TFAIL | TTERRNO, "%s returned: %ld, "
> + "expected: %d, expected errno: %s (%d)", tc->desc,
> + TEST_RETURN, tc->ret, tst_strerrno(tc->err), tc->err);
> + } else {
> + tst_res(TPASS | TTERRNO, "%s returned: %ld", tc->desc,
> + TEST_RETURN);
> + }
>
> -int main(int ac, char **av)
> -{
> - int result = RESULT_OK;
> - int i;
> - int lc;
> -
> - tst_parse_opts(ac, av, NULL, NULL);
> -
> - setup();
> -
> - for (lc = 0; TEST_LOOPING(lc); ++lc) {
> - tst_count = 0;
> - for (testno = 0; testno < TST_TOTAL; ++testno) {
> -
> - /*
> - * Execute test
> - */
> - for (i = 0; i < (int)ARRAY_SIZE(tcase); i++) {
> - int ret;
> - tst_resm(TINFO, "(case%02d) START", i);
> - ret = do_test(&tcase[i]);
> - tst_resm(TINFO, "(case%02d) END => %s", i,
> - (ret == 0) ? "OK" : "NG");
> - result |= ret;
> - }
> +CLEANUP:
> + if (tc->as_nobody && seteuid(euid) == -1)
> + tst_res(TWARN | TERRNO, "seteuid back to %d failed", euid);
>
> - /*
> - * Check results
> - */
> - switch (result) {
> - case RESULT_OK:
> - tst_resm(TPASS, "mq_open call succeeded ");
> - break;
> -
> - default:
> - tst_brkm(TFAIL | TTERRNO, cleanup,
> - "mq_open failed");
> - break;
> - }
> + if (tc->ttype == NO_SPACE && max_queues != -1 &&
> + FILE_PRINTF(PROC_MAX_QUEUES, "%d", max_queues))
> + tst_res(TWARN | TERRNO, "restoring max_queues back to %d failed",
> + max_queues);
>
> - }
> + if (tc->ttype == NO_FILE && oldlim != -1) {
> + rlim.rlim_cur = oldlim;
> + if (setrlimit(RLIMIT_NOFILE, &rlim) == -1)
> + tst_res(TWARN | TERRNO, "Restore limit %d back to %lu failed",
> + RLIMIT_NOFILE, rlim.rlim_cur);
> }
> - cleanup();
> - tst_exit();
> +
> + if (fd1 > 0 && close(fd1))
> + tst_res(TWARN | TTERRNO, "close(fd1) failed");
> +
> + if (fd2 > 0 && close(fd2))
> + tst_res(TWARN | TTERRNO, "close(fd2) failed");
> +
> + if (fd1 > 0)
> + mq_unlink(QUEUE_NAME);
> +
> + if (fd2 > 0 && strcmp(tc->qname, QUEUE_NAME) != 0)
> + mq_unlink(tc->qname);
> }
This is quite a maze of ifs and gotos. Maybe it would be a bit easier if
we used SAFE_MACROS() here much more and move the cleanup into the test
cleanup function. FYI the SAFE_CLOSE() also resets the fd to invalid
value, so we easily can do SAFE_CLOSE() at the end of the do_test()
function and if (fd > 0) close(fd); in the test cleanup function as
well.
Or alternatively we can split the test function into separate functions
per testcases. Given that half of them needs non-trivial setup and
cleanup it may be much easier to write it that way.
> +static struct tst_test test = {
> + .tid = "mq_open01",
> + .tcnt = ARRAY_SIZE(tcase),
> + .test = do_test,
> + .needs_root = 1,
> + .setup = setup,
> +};
> diff --git a/testcases/kernel/syscalls/utils/common_j_h.c b/testcases/kernel/syscalls/utils/common_j_h.c
> index 43165ca20..dbdbc117a 100644
> --- a/testcases/kernel/syscalls/utils/common_j_h.c
> +++ b/testcases/kernel/syscalls/utils/common_j_h.c
> @@ -227,113 +227,6 @@ int cleanup_swapfile(char *path)
> return 0;
> }
>
> -/*
> - * Change user limit that the calling process can open
> - */
> -int setup_ulimit_fnum(rlim_t newlim, rlim_t * oldlim)
> -{
> - int rc;
> - struct rlimit rlim;
> -
> - rc = getrlimit(RLIMIT_NOFILE, &rlim);
> - if (rc < 0) {
> - EPRINTF("getrlimit failed.\n");
> - return -1;
> - }
> - *oldlim = rlim.rlim_cur;
> - if (newlim > rlim.rlim_max) {
> - EPRINTF("can't set ulimit value: %ld.\n", newlim);
> - return -1;
> - }
> - rlim.rlim_cur = newlim;
> - rc = setrlimit(RLIMIT_NOFILE, &rlim);
> - if (rc < 0) {
> - EPRINTF("setrlimit failed.\n");
> - return -1;
> - }
> - return 0;
> -}
> -
> -int cleanup_ulimit_fnum(rlim_t oldlim)
> -{
> - int rc;
> - struct rlimit rlim;
> -
> - rc = getrlimit(RLIMIT_NOFILE, &rlim);
> - if (rc < 0) {
> - EPRINTF("getrlimit failed.\n");
> - return -1;
> - }
> - if (oldlim > rlim.rlim_max) {
> - EPRINTF("can't set ulimit value: %ld.\n", oldlim);
> - return -1;
> - }
> - rlim.rlim_cur = oldlim;
> - rc = setrlimit(RLIMIT_NOFILE, &rlim);
> - if (rc < 0) {
> - EPRINTF("setrlimit failed.\n");
> - return -1;
> - }
> - return 0;
> -}
> -
> -/*
> - * Change /proc or /sys setting
> - */
> -int setup_proc_fs(char *path, int newval, int *oldval)
> -{
> - int fd = -1, rc, len;
> - char buf[32];
> -
> - fd = open(path, O_RDWR);
> - if (fd < 0) {
> - EPRINTF("open %s failed.\n", path);
> - return -1;
> - }
> -
> - do {
> - rc = read(fd, buf, 32);
> - } while (rc < 0 && errno == EAGAIN);
> - if (rc < 0) {
> - EPRINTF("read failed.\n");
> - close(fd);
> - return -1;
> - }
> -
> - *oldval = atoi(buf);
> - sprintf(buf, "%d\n", newval);
> - len = strlen(buf);
> - rc = write(fd, buf, len);
> - close(fd);
> - if (rc != len) {
> - EPRINTF("write failed.\n");
> - return -1;
> - }
> - return 0;
> -}
> -
> -int cleanup_proc_fs(char *path, int oldval)
> -{
> - int fd = -1, rc, len;
> - char buf[32];
> -
> - fd = open(path, O_RDWR);
> - if (fd < 0) {
> - EPRINTF("open %s failed.\n", path);
> - return -1;
> - }
> -
> - sprintf(buf, "%d\n", oldval);
> - len = strlen(buf);
> - rc = write(fd, buf, len);
> - close(fd);
> - if (rc != len) {
> - EPRINTF("write failed.\n");
> - return -1;
> - }
> - return 0;
> -}
> -
> #if 0
> /*
> * Check max nodes from /sys/devices/system/node/node* files (for NUMA)
> diff --git a/testcases/kernel/syscalls/utils/include_j_h.h b/testcases/kernel/syscalls/utils/include_j_h.h
> index ff6aaf42d..742d96401 100644
> --- a/testcases/kernel/syscalls/utils/include_j_h.h
> +++ b/testcases/kernel/syscalls/utils/include_j_h.h
> @@ -135,12 +135,6 @@ int cleanup_file(char *path);
> int setup_swapfile(char *testdir, char *fname, char *path, size_t size);
> int cleanup_swapfile(char *path);
>
> -int setup_ulimit_fnum(rlim_t newlim, rlim_t *oldlim);
> -int cleanup_ulimit_fnum(rlim_t oldlim);
> -
> -int setup_proc_fs(char *path, int newval, int *oldval);
> -int cleanup_proc_fs(char *path, int oldval);
> -
> #define QUEUE_NAME "/test_mqueue"
> pid_t create_echo_msg_proc(void);
>
> --
> 2.11.0
>
>
> --
> Mailing list info: https://lists.linux.it/listinfo/ltp
--
Cyril Hrubis
chrubis@suse.cz
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2016-12-06 12:31 UTC | newest]
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2016-12-06 8:19 [LTP] [PATCH v2 1/1] syscalls/mq_open: fix old tests + convert to use new API Petr Vorel
2016-12-06 12:31 ` Cyril Hrubis
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