[LTP] [PATCH 2/2] shmctl/shmctl01.c: Test features IPC_INFO, SHM_STAT, SHM_LOCK and SHM_UNLOCK.

[DAN LI <li.dan@cn.fujitsu.com>]

Additional tests for features IPC_INFO, SHM_STAT, SHM_LOCK and SHM_UNLOCK.


Signed-off-by: DAN LI <li.dan@cn.fujitsu.com>
---
 testcases/kernel/syscalls/ipc/shmctl/shmctl01.c | 83 ++++++++++++++++++++++---
 1 file changed, 75 insertions(+), 8 deletions(-)

diff --git a/testcases/kernel/syscalls/ipc/shmctl/shmctl01.c b/testcases/kernel/syscalls/ipc/shmctl/shmctl01.c
index 34ff30c..c0f2c81 100644
--- a/testcases/kernel/syscalls/ipc/shmctl/shmctl01.c
+++ b/testcases/kernel/syscalls/ipc/shmctl/shmctl01.c
@@ -43,13 +43,18 @@
  *	call cleanup
  */

+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
 #include "ipcshm.h"
 #include "libtestsuite.h"

 char *TCID = "shmctl01";

 static int shm_id_1 = -1;
+static int shm_index;
 static struct shmid_ds buf;
+static struct shminfo info;
 static long save_time;

 #define FIRST	0
@@ -64,12 +69,24 @@ static pid_t pid_arr[N_ATTACH];
 static int sync_pipes[2];

 /* Setup, cleanup and check routines for IPC_STAT */
-static void stat_setup(void), func_stat(void);
+static void stat_setup(void), func_istat(void);
 static void stat_cleanup(void);

 /* Setup and check routines for IPC_SET */
 static void set_setup(void), func_set(void);

+/* Check routine for IPC_INFO */
+static void func_info(void);
+
+/* Check routine for SHM_STAT */
+static void func_sstat(void);
+
+/* Check routine for SHM_LOCK */
+static void func_lock(void);
+
+/* Check routine for SHM_UNLOCK */
+static void func_unlock(void);
+
 /* Check routine for IPC_RMID */
 static void func_rmid(void);

@@ -77,21 +94,27 @@ static void func_rmid(void);
 static void do_child(void);

 static struct test_case_t {
+	int *shmid;
 	int cmd;
+	struct shmid_ds *arg;
 	void (*func_test) ();
 	void (*func_setup) ();
 } TC[] = {
-	{IPC_STAT, func_stat, stat_setup},
+	{&shm_id_1, IPC_STAT, &buf, func_istat, stat_setup},
 #ifndef UCLINUX
 	    /*
 	     * The second test is not applicable to uClinux;
 	     * shared memory segments are detached on exec(),
 	     * so cannot be passed to uClinux children.
 	     */
-	{IPC_STAT, func_stat, stat_setup},
+	{&shm_id_1, IPC_STAT, &buf, func_istat, stat_setup},
 #endif
-	{IPC_SET, func_set, set_setup},
-	{IPC_RMID, func_rmid, NULL},
+	{&shm_id_1, IPC_SET, &buf, func_set, set_setup},
+	{&shm_id_1, IPC_INFO, (struct shmid_ds *) &info, func_info, NULL},
+	{&shm_index, SHM_STAT, &buf, func_sstat, NULL},
+	{&shm_id_1, SHM_LOCK, &buf, func_lock, NULL},
+	{&shm_id_1, SHM_UNLOCK, &buf, func_unlock, NULL},
+	{&shm_id_1, IPC_RMID, &buf, func_rmid, NULL},
 };

 static int TST_TOTAL = ARRAY_SIZE(TC);
@@ -146,7 +169,7 @@ int main(int argc, char *argv[])
 			if (TC[i].func_setup != NULL)
 				(*TC[i].func_setup) ();

-			TEST(shmctl(shm_id_1, TC[i].cmd, &buf));
+			TEST(shmctl(*(TC[i].shmid), TC[i].cmd, TC[i].arg));

 			if (TEST_RETURN == -1) {
 				tst_resm(TFAIL, "%s call failed - errno "
@@ -294,11 +317,11 @@ void do_child(void)
 }

 /*
- * func_stat() - check the functionality of the IPC_STAT command with shmctl()
+ * func_istat() - check the functionality of the IPC_STAT command with shmctl()
  *		 by looking at the pid of the creator, the segement size,
  *		 the number of attaches and the mode.
  */
-void func_stat(void)
+void func_istat(void)
 {
 	int fail = 0;
 	pid_t pid;
@@ -419,6 +442,50 @@ void func_set(void)
 	tst_resm(TPASS, "new mode and change time are correct");
 }

+
+static void func_info(void)
+{
+	if (info.shmmin != 1)
+		tst_resm(TFAIL, "value of shmmin is incorrect");
+	else
+		tst_resm(TPASS, "get correct shared memory limits");
+}
+
+static void func_sstat(void)
+{
+	if (buf.shm_segsz != SHM_SIZE)
+		tst_resm(TFAIL, "segment size is incorrect");
+	else
+		tst_resm(TPASS, "size of attache is correct");
+}
+
+static void func_lock(void)
+{
+	if (shmctl(shm_id_1, IPC_STAT, &buf) == -1) {
+		tst_resm(TBROK, "stat failed in func_lock()");
+		return;
+	}
+
+	if (buf.shm_perm.mode & SHM_LOCKED)
+		tst_resm(TPASS, "SHM_LOCK is setted");
+	else
+		tst_resm(TFAIL, "SHM_LOCK is not setted");
+}
+
+static void func_unlock(void)
+{
+	if (shmctl(shm_id_1, IPC_STAT, &buf) == -1) {
+		tst_resm(TBROK, "stat failed in func_unlock()");
+		return;
+	}
+
+	if (buf.shm_perm.mode & SHM_LOCKED)
+		tst_resm(TFAIL, "SHM_LOCK is not cleared");
+	else
+		tst_resm(TPASS, "SHM_LOCK is cleared");
+}
+
+
 /*
  * func_rmid() - check the functionality of the IPC_RMID command with shmctl()
  */
-- 
1.8.1

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