[LTP] [PATCH v5] syscalls/fanotify11: new test for report thread id
nixiaoming
nixiaoming@huawei.com
Fri Sep 28 08:24:11 CEST 2018
syscalls/fanotify11
test fanotify_init with FAN_EVENT_INFO_TID
data->pid is ID(pid) of the thread that caused the event
test fanotify_init without FAN_EVENT_INFO_TID
data->pid is ID(tgid) of the process that caused the event
Signed-off-by: nixiaoming <nixiaoming@huawei.com>
---
this is not testing an upstream feature, only RFC.
runtest/syscalls | 1 +
testcases/kernel/syscalls/fanotify/.gitignore | 1 +
testcases/kernel/syscalls/fanotify/Makefile | 2 +-
testcases/kernel/syscalls/fanotify/fanotify11.c | 131 ++++++++++++++++++++++++
4 files changed, 134 insertions(+), 1 deletion(-)
create mode 100644 testcases/kernel/syscalls/fanotify/fanotify11.c
diff --git a/runtest/syscalls b/runtest/syscalls
index 0d0be77..84b0d6e 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -497,6 +497,7 @@ fanotify06 fanotify06
fanotify07 fanotify07
fanotify08 fanotify08
fanotify09 fanotify09
+fanotify11 fanotify11
ioperm01 ioperm01
ioperm02 ioperm02
diff --git a/testcases/kernel/syscalls/fanotify/.gitignore b/testcases/kernel/syscalls/fanotify/.gitignore
index ec75539..62180ab 100644
--- a/testcases/kernel/syscalls/fanotify/.gitignore
+++ b/testcases/kernel/syscalls/fanotify/.gitignore
@@ -7,3 +7,4 @@
/fanotify07
/fanotify08
/fanotify09
+/fanotify11
diff --git a/testcases/kernel/syscalls/fanotify/Makefile b/testcases/kernel/syscalls/fanotify/Makefile
index bb58878..5d01b48 100644
--- a/testcases/kernel/syscalls/fanotify/Makefile
+++ b/testcases/kernel/syscalls/fanotify/Makefile
@@ -17,7 +17,7 @@
#
top_srcdir ?= ../../../..
-
+fanotify11: CFLAGS+=-pthread
include $(top_srcdir)/include/mk/testcases.mk
include $(top_srcdir)/include/mk/generic_leaf_target.mk
diff --git a/testcases/kernel/syscalls/fanotify/fanotify11.c b/testcases/kernel/syscalls/fanotify/fanotify11.c
new file mode 100644
index 0000000..3de4531
--- /dev/null
+++ b/testcases/kernel/syscalls/fanotify/fanotify11.c
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2018 Huawei. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 or any later 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.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like. Any license provided herein, whether implied or
+ * otherwise, applies only to this software file. Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * 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.
+ *
+ * Started by nixiaoming <nixiaoming@huawei.com>
+ *
+ * DESCRIPTION
+ * After fanotify_init adds flags FAN_EVENT_INFO_TID,
+ * check whether the program can accurately identify which thread id
+ * in the multithreaded program triggered the event..
+ *
+ */
+#define _GNU_SOURCE
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <pthread.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <linux/limits.h>
+#include "tst_test.h"
+#include "tst_safe_pthread.h"
+#include "fanotify.h"
+
+#if defined(HAVE_SYS_FANOTIFY_H)
+#include <sys/fanotify.h>
+#ifdef FAN_EVENT_INFO_TID
+
+#define gettid() syscall(SYS_gettid)
+static int tid;
+
+void *thread_create_file(void *arg LTP_ATTRIBUTE_UNUSED)
+{
+ char tid_file[64] = {0};
+
+ tid = gettid();
+ snprintf(tid_file, sizeof(tid_file), "test_tid_%d", tid);
+ SAFE_FILE_PRINTF(tid_file, "1");
+
+ pthread_exit(0);
+}
+
+static unsigned int tcases[] = {
+ FAN_CLASS_NOTIF,
+ FAN_CLASS_NOTIF | FAN_EVENT_INFO_TID
+};
+
+void test01(unsigned int i)
+{
+ int ret;
+ pthread_t p_id;
+ struct fanotify_event_metadata data;
+ int fd_notify;
+ int tgid = getpid();
+
+ fd_notify = fanotify_init(tcases[i], 0);
+ if (fd_notify < 0) {
+ if (errno == EINVAL && (tcases[i] & FAN_EVENT_INFO_TID))
+ return;
+ tst_brk(TBROK | TERRNO, "fanotify_init(0x%x, 0) failed",
+ tcases[i]);
+ }
+
+ ret = fanotify_mark(fd_notify, FAN_MARK_ADD,
+ FAN_ALL_EVENTS | FAN_EVENT_ON_CHILD, AT_FDCWD, ".");
+ if (ret != 0)
+ tst_brk(TBROK, "fanotify_mark FAN_MARK_ADD fail ret=%d\n", ret);
+
+ SAFE_PTHREAD_CREATE(&p_id, NULL, thread_create_file, NULL);
+
+ SAFE_READ(0, fd_notify, &data, sizeof(struct fanotify_event_metadata));
+ tst_res(TINFO, "%s FAN_EVENT_INFO_TID: tgid=%d, tid=%d, data.pid=%d\n",
+ (tcases[i] & FAN_EVENT_INFO_TID) ? "with" : "without",
+ tgid, tid, data.pid);
+ if ((tcases[i] & FAN_EVENT_INFO_TID) && (data.pid == tid))
+ tst_res(TPASS, "data.pid == tid\n");
+ else if (!(tcases[i] & FAN_EVENT_INFO_TID) && (data.pid == tgid))
+ tst_res(TPASS, "data.pid == tgid\n");
+ else
+ tst_res(TFAIL, "fail..");
+
+ if (data.fd != FAN_NOFD)
+ SAFE_CLOSE(data.fd);
+ SAFE_CLOSE(fd_notify);
+ SAFE_PTHREAD_JOIN(p_id, NULL);
+}
+
+
+static struct tst_test test = {
+ .test = test01,
+ .tcnt = ARRAY_SIZE(tcases),
+ .needs_tmpdir = 1,
+ .needs_root = 1,
+};
+
+
+#else
+TST_TEST_TCONF("system doesn't support flags: FAN_EVENT_INFO_TID");
+
+#endif /* ifdef FAN_EVENT_INFO_TID */
+
+#else
+TST_TEST_TCONF("system doesn't have required fanotify support");
+#endif
--
2.10.1
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