system call msgrcv() from 32-bit application shows error:
"msgrcv: No message of desired type"
This simple program is writen for the issue as an regression case.
Signed-off-by: Li Wang <liw...@redhat.com>
---
runtest/ltplite | 1 +
runtest/syscalls | 1 +
runtest/syscalls-ipc | 1 +
testcases/kernel/syscalls/.gitignore | 1 +
testcases/kernel/syscalls/ipc/msgrcv/msgrcv08.c | 135 ++++++++++++++++++++++++
5 files changed, 139 insertions(+)
create mode 100644 testcases/kernel/syscalls/ipc/msgrcv/msgrcv08.c
diff --git a/runtest/ltplite b/runtest/ltplite
index 3bc681c..2b204e8 100644
--- a/runtest/ltplite
+++ b/runtest/ltplite
@@ -496,6 +496,7 @@ msgrcv04 msgrcv04
msgrcv05 msgrcv05
msgrcv06 msgrcv06
msgrcv07 msgrcv07
+msgrcv08 msgrcv08
msgsnd01 msgsnd01
msgsnd02 msgsnd02
diff --git a/runtest/syscalls b/runtest/syscalls
index 70d4945..abdb146 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -662,6 +662,7 @@ msgrcv04 msgrcv04
msgrcv05 msgrcv05
msgrcv06 msgrcv06
msgrcv07 msgrcv07
+msgrcv08 msgrcv08
msgsnd01 msgsnd01
msgsnd02 msgsnd02
diff --git a/runtest/syscalls-ipc b/runtest/syscalls-ipc
index bd9bf30..5592a00 100644
--- a/runtest/syscalls-ipc
+++ b/runtest/syscalls-ipc
@@ -24,6 +24,7 @@ msgrcv04 msgrcv04
msgrcv05 msgrcv05
msgrcv06 msgrcv06
msgrcv07 msgrcv07
+msgrcv08 msgrcv08
msgsnd01 msgsnd01
msgsnd02 msgsnd02
diff --git a/testcases/kernel/syscalls/.gitignore
b/testcases/kernel/syscalls/.gitignore
index 172aeec..3d38d86 100644
--- a/testcases/kernel/syscalls/.gitignore
+++ b/testcases/kernel/syscalls/.gitignore
@@ -400,6 +400,7 @@
/ipc/msgrcv/msgrcv05
/ipc/msgrcv/msgrcv06
/ipc/msgrcv/msgrcv07
+/ipc/msgrcv/msgrcv08
/ipc/msgsnd/msgsnd01
/ipc/msgsnd/msgsnd02
/ipc/msgsnd/msgsnd03
diff --git a/testcases/kernel/syscalls/ipc/msgrcv/msgrcv08.c
b/testcases/kernel/syscalls/ipc/msgrcv/msgrcv08.c
new file mode 100644
index 0000000..89bfe2c
--- /dev/null
+++ b/testcases/kernel/syscalls/ipc/msgrcv/msgrcv08.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2015 Author: Gabriellla Schmidt <g...@bruker.de>
+ * Modify: Li Wang <liw...@redhat.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:
+ *
+ * A regression test for:
+ * commit e7ca2552369c1dfe0216c626baf82c3d83ec36bb
+ * Author: Mateusz Guzik <mgu...@redhat.com>
+ * Date: Mon Jan 27 17:07:11 2014 -0800
+ *
+ * ipc: fix compat msgrcv with negative msgtyp
+ *
+ * Reproduce:
+ *
+ * 32-bit application using the msgrcv() system call
+ * gives the error message:
+ *
+ * msgrcv: No message of desired type
+ *
+ * If this progarm is compiled as 64-bit application it works.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/msg.h>
+#include "test.h"
+
+const char *TCID = "msgrcv08";
+const int TST_TOTAL = 1;
+
+#if __WORDSIZE == 32
+
+struct msgbuf {
+ long mtype; /* message type, must be > 0 */
+ char mtext[16]; /* message data */
+};
+
+static void setup(void)
+{
+ tst_require_root(NULL);
+
+ TEST_PAUSE;
+}
+
+static void cleanup(void)
+{
+}
+
+static int msr(int msqid)
+{
+ struct msgbuf msbs;
+ struct msgbuf msbr;
+ ssize_t sret;
+ long mtype = 121;
+
+ memset(&msbs, 0, sizeof(msbs));
+ msbs.mtype = mtype;
+
+ if (msgsnd(msqid, &msbs, sizeof(msbs.mtext), IPC_NOWAIT))
+ tst_brkm(TBROK, NULL, "msgsnd error");
+
+ sret = msgrcv(msqid, &msbr, sizeof(msbr.mtext), -mtype, IPC_NOWAIT |
MSG_NOERROR);
+
+ if (sret < 0) {
+ tst_resm(TFAIL, "Bug: No message of desired type.");
+ return -1;
+ }
+
+ if (msbr.mtype != mtype)
+ tst_brkm(TBROK, NULL,
+ "found mtype %ld, expected %ld\n", msbr.mtype, mtype);
+
+ if ((size_t)sret != sizeof(msbs.mtext))
+ tst_brkm(TBROK, NULL, "received %lu, expected %lu\n",
+ (unsigned long)sret, (unsigned long)sizeof(msbs.mtext));
+
+ return 0;
+}
+
+static void msgrcv_test(void)
+{
+ int ret;
+ int msqid = msgget(IPC_PRIVATE, IPC_CREAT | IPC_EXCL | 0666);
+
+ if (msqid < 0)
+ tst_brkm(TBROK, NULL, "msgget error");
+
+ ret = msr(msqid);
+
+ if (msgctl(msqid, IPC_RMID, 0))
+ tst_brkm(TBROK, NULL, "msgctl error");
+
+ if (!ret)
+ tst_resm(TPASS, "Hi, no regression found!");
+}
+
+int main(int argc, char *argv[])
+{
+ int lc;
+
+ tst_parse_opts(argc, argv, NULL, NULL);
+
+ setup();
+
+ for (lc = 0; TEST_LOOPING(lc); lc++)
+ msgrcv_test();
+
+ cleanup();
+ tst_exit();
+}
+
+#else /* no 64-bit */
+int main(void)
+{
+ tst_brkm(TCONF, NULL, "not works when compiled as 64-bit
application.");
+}
+#endif
--
1.8.3.1
------------------------------------------------------------------------------
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