From: Amir Goldstein <amir73il@gmail.com>
To: Petr Vorel <pvorel@suse.cz>
Cc: Matthew Bobrowski <repnop@google.com>, Jan Kara <jack@suse.cz>,
ltp@lists.linux.it
Subject: [LTP] [PATCH 1/5] syscalls/inotify12: Introduce test for inotify mask flags
Date: Mon, 13 Jun 2022 17:38:22 +0300 [thread overview]
Message-ID: <20220613143826.1328830-2-amir73il@gmail.com> (raw)
In-Reply-To: <20220613143826.1328830-1-amir73il@gmail.com>
Test behavior of IN_ONESHOT and IN_EXCL_UNLINK.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
---
runtest/syscalls | 1 +
testcases/kernel/syscalls/inotify/.gitignore | 1 +
testcases/kernel/syscalls/inotify/inotify12.c | 168 ++++++++++++++++++
3 files changed, 170 insertions(+)
create mode 100644 testcases/kernel/syscalls/inotify/inotify12.c
diff --git a/runtest/syscalls b/runtest/syscalls
index 3b26d19e6..1259e41f1 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -588,6 +588,7 @@ inotify08 inotify08
inotify09 inotify09
inotify10 inotify10
inotify11 inotify11
+inotify12 inotify12
fanotify01 fanotify01
fanotify02 fanotify02
diff --git a/testcases/kernel/syscalls/inotify/.gitignore b/testcases/kernel/syscalls/inotify/.gitignore
index 593cf6c04..f6e5c546a 100644
--- a/testcases/kernel/syscalls/inotify/.gitignore
+++ b/testcases/kernel/syscalls/inotify/.gitignore
@@ -9,3 +9,4 @@
/inotify09
/inotify10
/inotify11
+/inotify12
diff --git a/testcases/kernel/syscalls/inotify/inotify12.c b/testcases/kernel/syscalls/inotify/inotify12.c
new file mode 100644
index 000000000..fe72771c5
--- /dev/null
+++ b/testcases/kernel/syscalls/inotify/inotify12.c
@@ -0,0 +1,168 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2022 CTERA Networks. All Rights Reserved.
+ *
+ * Author: Amir Goldstein <amir73il@gmail.com>
+ */
+
+/*\
+ * [Description]
+ * Test special inotify mask flags.
+ *
+ * Regression test for kernel commit a32e697cda27:
+ *
+ * inotify: show inotify mask flags in proc fdinfo
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/wait.h>
+
+#include "tst_test.h"
+#include "tst_safe_macros.h"
+#include "inotify.h"
+
+#if defined(HAVE_SYS_INOTIFY_H)
+#include <sys/inotify.h>
+
+#define EVENT_MAX 32
+/* Size of the event structure, not including the name */
+#define EVENT_SIZE (sizeof(struct inotify_event))
+#define EVENT_BUF_LEN (EVENT_MAX * (EVENT_SIZE + 16))
+
+#define TEST_FILE "test_file"
+
+static char event_buf[EVENT_BUF_LEN];
+
+static struct tcase {
+ const char *tname;
+ unsigned int mask;
+ int expect_events;
+} tcases[] = {
+ {
+ "Watch for multi events",
+ IN_MODIFY,
+ 2,
+ },
+ {
+ "Watch for single event",
+ IN_MODIFY | IN_ONESHOT,
+ 1,
+ },
+ {
+ "Watch for events on linked file",
+ IN_MODIFY | IN_EXCL_UNLINK,
+ 1,
+ },
+};
+
+int fd_notify;
+
+static void verify_inotify(unsigned int n)
+{
+ struct tcase *tc = &tcases[n];
+ int fd, len;
+ unsigned int tmpmask;
+ char procfdinfo[100];
+ struct inotify_event *event = (struct inotify_event *)event_buf;
+
+ tst_res(TINFO, "Test #%d: %s", n, tc->tname);
+
+ fd_notify = SAFE_MYINOTIFY_INIT1(O_NONBLOCK);
+
+ SAFE_FILE_PRINTF(TEST_FILE, "1");
+
+ SAFE_MYINOTIFY_ADD_WATCH(fd_notify, ".", tc->mask);
+
+ sprintf(procfdinfo, "/proc/%d/fdinfo/%d", (int)getpid(), fd_notify);
+ if (FILE_LINES_SCANF(procfdinfo, "inotify wd:%*d ino:%*x sdev:%*x mask:%x",
+ &tmpmask)) {
+ tst_res(TFAIL, "Could not parse inotify fdinfo");
+ } else if (tmpmask != tc->mask) {
+ tst_res(TFAIL, "Incorrect mask %x in inotify fdinfo (expected %x)",
+ tmpmask, tc->mask);
+ } else {
+ tst_res(TPASS, "Correct mask in inotify fdinfo");
+ }
+
+ fd = SAFE_OPEN(TEST_FILE, O_RDWR);
+ SAFE_WRITE(1, fd, "2", 1);
+
+ /*
+ * Read the 1st IN_MODIFY event
+ */
+ len = SAFE_READ(0, fd_notify, event_buf, EVENT_BUF_LEN);
+
+ if (len < (int)sizeof(*event)) {
+ tst_res(TFAIL, "Got no events");
+ } else if (event->mask == IN_MODIFY) {
+ tst_res(TPASS, "Got 1st event as expected");
+ } else {
+ tst_res(TFAIL, "Got event 0x%x (expected 0x%x)",
+ event->mask, IN_MODIFY);
+ }
+
+ /*
+ * Unlink file so IN_EXCL_UNLINK won't get IN_ACCESS event.
+ * IN_ONESHOT won't get IN_ACCESS event because IN_MODIFY
+ * was already generated.
+ */
+ SAFE_UNLINK(TEST_FILE);
+ SAFE_WRITE(1, fd, "3", 1);
+ SAFE_CLOSE(fd);
+
+ /*
+ * Possibly read the 2nd IN_MODIFY event
+ */
+ errno = 0;
+ len = read(fd_notify, event_buf, EVENT_BUF_LEN);
+ SAFE_CLOSE(fd_notify);
+ if (len < 0 && errno == EAGAIN) {
+ /* Treat no event same as we treat IN_IGNORED */
+ event->mask = IN_IGNORED;
+ } else if (len < (int)sizeof(*event)) {
+ tst_res(TFAIL | TERRNO, "Failed to read events");
+ return;
+ }
+
+ if (event->mask == IN_MODIFY) {
+ if (tc->expect_events > 1)
+ tst_res(TPASS, "Got 2nd event as expected");
+ else
+ tst_res(TFAIL, "Got unexpected 2nd event");
+ } else if (event->mask == IN_IGNORED) {
+ if (tc->expect_events == 1)
+ tst_res(TPASS, "Got no more events as expected");
+ else
+ tst_res(TFAIL, "Got only one event (expected %d)",
+ tc->expect_events);
+ } else {
+ tst_res(TFAIL, "Got unexpected event 0x%x",
+ event->mask);
+ }
+}
+
+static void cleanup(void)
+{
+ if (fd_notify > 0)
+ SAFE_CLOSE(fd_notify);
+}
+
+static struct tst_test test = {
+ .timeout = 10,
+ .needs_tmpdir = 1,
+ .cleanup = cleanup,
+ .test = verify_inotify,
+ .tcnt = ARRAY_SIZE(tcases),
+ .tags = (const struct tst_tag[]) {
+ {"linux-git", "a32e697cda27"},
+ {}
+};
+
+#else
+ TST_TEST_TCONF("system doesn't have required inotify support");
+#endif
--
2.25.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
next prev parent reply other threads:[~2022-06-13 14:38 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-13 14:38 [LTP] [PATCH 0/5] Fanotify tests for FAN_MARK_EVICTABLE Amir Goldstein
2022-06-13 14:38 ` Amir Goldstein [this message]
2022-06-13 14:58 ` [LTP] [PATCH 1/5] syscalls/inotify12: Introduce test for inotify mask flags Amir Goldstein
2022-06-13 15:23 ` Petr Vorel
2022-06-13 16:03 ` Amir Goldstein
2022-06-13 16:05 ` Petr Vorel
2022-06-13 15:48 ` Petr Vorel
2022-06-14 10:19 ` Jan Kara
2022-06-14 11:28 ` Petr Vorel
2022-06-13 14:38 ` [LTP] [PATCH 2/5] syscalls/fanotify23: Introduce FAN_MARK_EVICTABLE test Amir Goldstein
2022-06-14 10:19 ` Jan Kara
2022-06-16 8:36 ` Petr Vorel
2022-06-16 8:50 ` Amir Goldstein
2022-06-16 13:28 ` Petr Vorel
2022-06-13 14:38 ` [LTP] [PATCH 3/5] syscalls/fanotify10: Watch directory that is not the mount path Amir Goldstein
2022-06-14 10:26 ` Jan Kara
2022-06-14 11:10 ` Amir Goldstein
2022-06-16 13:31 ` Petr Vorel
2022-06-16 13:46 ` Amir Goldstein
2022-06-16 16:57 ` Petr Vorel
2022-06-13 14:38 ` [LTP] [PATCH 4/5] syscalls/fanotify10: Mount cycle between test cases Amir Goldstein
2022-06-14 10:47 ` Jan Kara
2022-06-13 14:38 ` [LTP] [PATCH 5/5] syscalls/fanotify10: Add test cases for evictable ignore mark Amir Goldstein
2022-06-14 13:04 ` Jan Kara
2022-06-30 6:27 ` Jan Stancek
2022-06-30 8:20 ` Amir Goldstein
2022-07-07 12:49 ` Jan Stancek
2022-07-09 10:09 ` Amir Goldstein
2022-07-12 8:19 ` Jan Stancek
2022-08-24 15:24 ` Jan Kara
2022-08-24 18:13 ` Amir Goldstein
2022-08-25 9:33 ` Jan Kara
2022-08-25 12:53 ` Jan Stancek
2022-08-25 13:47 ` Amir Goldstein
2022-08-25 14:03 ` Jan Kara
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