create a new case to test PROT_NONE, PROT_EXEC flag for mprotect(2)
Signed-off-by: Xing Gu <gux.f...@cn.fujitsu.com>
Reviewed-by: Jan Stancek <jstan...@redhat.com>
---
runtest/ltplite | 1 +
runtest/stress.part3 | 1 +
runtest/syscalls | 1 +
testcases/kernel/syscalls/.gitignore | 1 +
testcases/kernel/syscalls/mprotect/mprotect04.c | 171 ++++++++++++++++++++++++
5 files changed, 175 insertions(+)
create mode 100644 testcases/kernel/syscalls/mprotect/mprotect04.c
diff --git a/runtest/ltplite b/runtest/ltplite
index c6d647d..a9686a0 100644
--- a/runtest/ltplite
+++ b/runtest/ltplite
@@ -463,6 +463,7 @@ modify_ldt02 modify_ldt02
mprotect01 mprotect01
mprotect02 mprotect02
mprotect03 mprotect03
+mprotect04 mprotect04
mremap01 mremap01
mremap02 mremap02
diff --git a/runtest/stress.part3 b/runtest/stress.part3
index b9b8d7a..6f521cf 100644
--- a/runtest/stress.part3
+++ b/runtest/stress.part3
@@ -386,6 +386,7 @@ modify_ldt02 modify_ldt02
mprotect01 mprotect01
mprotect02 mprotect02
mprotect03 mprotect03
+mprotect04 mprotect04
mremap01 mremap01
mremap02 mremap02
diff --git a/runtest/syscalls b/runtest/syscalls
index 13716d7..d803987 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -606,6 +606,7 @@ move_pages11 cd $LTPROOT/testcases/bin && chown root
move_pages11 && chmod 04755
mprotect01 mprotect01
mprotect02 mprotect02
mprotect03 mprotect03
+mprotect04 mprotect04
mq_notify01 mq_notify01
mq_open01 mq_open01
diff --git a/testcases/kernel/syscalls/.gitignore
b/testcases/kernel/syscalls/.gitignore
index 42b0eed..7642b11 100644
--- a/testcases/kernel/syscalls/.gitignore
+++ b/testcases/kernel/syscalls/.gitignore
@@ -550,6 +550,7 @@
/mprotect/mprotect01
/mprotect/mprotect02
/mprotect/mprotect03
+/mprotect/mprotect04
/mq_notify/mq_notify01
/mq_open/mq_open01
/mq_timedreceive/mq_timedreceive01
diff --git a/testcases/kernel/syscalls/mprotect/mprotect04.c
b/testcases/kernel/syscalls/mprotect/mprotect04.c
new file mode 100644
index 0000000..17ee73d
--- /dev/null
+++ b/testcases/kernel/syscalls/mprotect/mprotect04.c
@@ -0,0 +1,171 @@
+/*
+ * Copyright (c) 2014 Fujitsu Ltd.
+ * Author: Xing Gu <gux.f...@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,
+ * 1) mprotect() succeeds to set a region of memory with no access,
+ * when 'prot' is set to PROT_NONE. An attempt to access the contents
+ * of the region gives rise to the signal SIGSEGV.
+ * 2) mprotect() succeeds to set a region of memory to be executed, when
+ * 'prot' is set to PROT_EXEC.
+ */
+
+#include <signal.h>
+#include <setjmp.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <stdlib.h>
+
+#include "test.h"
+#include "usctest.h"
+#include "safe_macros.h"
+
+static void sighandler(int sig);
+
+static void setup(void);
+static void cleanup(void);
+
+static void testfunc_protnone(void);
+
+static void exec_func(void);
+static void testfunc_protexec(void);
+
+static void (*testfunc[])(void) = { testfunc_protnone, testfunc_protexec };
+
+char *TCID = "mprotect04";
+int TST_TOTAL = ARRAY_SIZE(testfunc);
+
+static volatile int sigsegv_caught;
+static sigjmp_buf env;
+
+int main(int ac, char **av)
+{
+ int lc;
+ int 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 sighandler(int sig)
+{
+ if (sig == SIGSEGV) {
+ sigsegv_caught = 1;
+ siglongjmp(env, 1);
+ } else {
+ tst_brkm(TBROK, cleanup, "received an unexpected signal: %d",
+ sig);
+ }
+}
+
+static void setup(void)
+{
+ tst_sig(NOFORK, sighandler, cleanup);
+
+ TEST_PAUSE;
+}
+
+static void testfunc_protnone(void)
+{
+ char *addr;
+ int page_sz;
+
+ sigsegv_caught = 0;
+
+ page_sz = getpagesize();
+
+ addr = SAFE_MMAP(cleanup, 0, page_sz, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+ /* Change the protection to PROT_NONE. */
+ TEST(mprotect(addr, page_sz, PROT_NONE));
+
+ if (TEST_RETURN == -1) {
+ tst_resm(TFAIL | TTERRNO, "mprotect failed");
+ } else {
+ if (sigsetjmp(env, 1) == 0)
+ addr[0] = 1;
+
+ if (sigsegv_caught)
+ tst_resm(TPASS, "test PROT_NONE for mprotect success");
+ else
+ tst_resm(TFAIL, "test PROT_NONE for mprotect failed");
+ }
+
+ SAFE_MUNMAP(cleanup, addr, page_sz);
+}
+
+static void exec_func(void)
+{
+ return;
+}
+
+static void testfunc_protexec(void)
+{
+ int page_sz;
+ int (*func)(void);
+
+ sigsegv_caught = 0;
+
+ page_sz = getpagesize();
+
+ func = SAFE_MMAP(cleanup, 0, page_sz, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+ memcpy(func, exec_func, page_sz);
+
+ /* Change the protection to PROT_EXEC. */
+ TEST(mprotect(func, page_sz, PROT_EXEC));
+
+ if (TEST_RETURN == -1) {
+ tst_resm(TFAIL | TTERRNO, "mprotect failed");
+ } else {
+ if (sigsetjmp(env, 1) == 0)
+ (*func)();
+
+ if (sigsegv_caught)
+ tst_resm(TFAIL, "test PROT_EXEC for mprotect failed");
+ else
+ tst_resm(TPASS, "test PROT_EXEC for mprotect success");
+ }
+
+ SAFE_MUNMAP(cleanup, func, page_sz);
+}
+
+static void cleanup(void)
+{
+ TEST_CLEANUP;
+}
--
1.8.3.1
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