[LTP] [PATCH 7/9] syscalls/ipc: Add shmctl07 test

[Cyril Hrubis]

A new test for SHM_LOCK and SHM_UNLOCK.

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
---
 runtest/syscalls                              |  1 +
 runtest/syscalls-ipc                          |  1 +
 .../kernel/syscalls/ipc/shmctl/.gitignore     |  1 +
 .../kernel/syscalls/ipc/shmctl/shmctl07.c     | 66 +++++++++++++++++++
 4 files changed, 69 insertions(+)
 create mode 100644 testcases/kernel/syscalls/ipc/shmctl/shmctl07.c

diff --git a/runtest/syscalls b/runtest/syscalls
index 819e8d8ee..1dc4973e7 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -1359,6 +1359,7 @@ shmctl03 shmctl03
 shmctl04 shmctl04
 shmctl05 shmctl05
 shmctl06 shmctl06
+shmctl07 shmctl07
 
 shmdt01 shmdt01
 shmdt02 shmdt02
diff --git a/runtest/syscalls-ipc b/runtest/syscalls-ipc
index c3a35896c..613987589 100644
--- a/runtest/syscalls-ipc
+++ b/runtest/syscalls-ipc
@@ -57,6 +57,7 @@ shmctl03 shmctl03
 shmctl04 shmctl04
 shmctl05 shmctl05
 shmctl06 shmctl06
+shmctl07 shmctl07
 
 shmdt01 shmdt01
 shmdt02 shmdt02
diff --git a/testcases/kernel/syscalls/ipc/shmctl/.gitignore b/testcases/kernel/syscalls/ipc/shmctl/.gitignore
index 46b107344..4322d03b7 100644
--- a/testcases/kernel/syscalls/ipc/shmctl/.gitignore
+++ b/testcases/kernel/syscalls/ipc/shmctl/.gitignore
@@ -4,3 +4,4 @@
 /shmctl04
 /shmctl05
 /shmctl06
+/shmctl07
diff --git a/testcases/kernel/syscalls/ipc/shmctl/shmctl07.c b/testcases/kernel/syscalls/ipc/shmctl/shmctl07.c
new file mode 100644
index 000000000..409203db7
--- /dev/null
+++ b/testcases/kernel/syscalls/ipc/shmctl/shmctl07.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2020 Cyril Hrubis <chrubis@suse.cz>
+ */
+/*
+ * Test for a SHM_LOCK and SHM_UNLOCK.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include "tst_test.h"
+#include "tst_safe_sysv_ipc.h"
+#include "libnewipc.h"
+
+#define SHM_SIZE 2048
+
+static int shm_id = -1;
+
+static void verify_shmlock(void)
+{
+	struct shmid_ds ds;
+
+	TEST(shmctl(shm_id, SHM_LOCK, NULL));
+
+	if (TST_RET != 0)
+		tst_res(TFAIL | TTERRNO, "shmctl(%i, SHM_LOCK, NULL)", shm_id);
+	else
+		tst_res(TPASS, "shmctl(%i, SHM_LOCK, NULL)", shm_id);
+
+
+	SAFE_SHMCTL(shm_id, IPC_STAT, &ds);
+
+	if (ds.shm_perm.mode & SHM_LOCKED)
+		tst_res(TPASS, "SMH_LOCKED bit is on in shm_perm.mode");
+	else
+		tst_res(TFAIL, "SHM_LOCKED bit is off in shm_perm.mode");
+
+	TEST(shmctl(shm_id, SHM_UNLOCK, NULL));
+
+	if (TST_RET != 0)
+		tst_res(TFAIL | TTERRNO, "shmctl(%i, SHM_UNLOCK, NULL)", shm_id);
+	else
+		tst_res(TPASS, "shmctl(%i, SHM_UNLOCK, NULL)", shm_id);
+
+	if (ds.shm_perm.mode & SHM_LOCKED)
+		tst_res(TPASS, "SHM_LOCKED bit is off in shm_perm.mode");
+	else
+		tst_res(TFAIL, "SMH_LOCKED bit is on in shm_perm.mode");
+}
+
+static void setup(void)
+{
+	shm_id = SAFE_SHMGET(IPC_PRIVATE, SHM_SIZE, IPC_CREAT | SHM_RW);
+}
+
+static void cleanup(void)
+{
+	if (shm_id >= 0)
+		SAFE_SHMCTL(shm_id, IPC_RMID, NULL);
+}
+
+static struct tst_test test = {
+	.setup = setup,
+	.cleanup = cleanup,
+	.test_all = verify_shmlock,
+};
-- 
2.26.2