linux-kernel - [PATCH v4 24/27] selftests: ntsync: Add some tests for wakeup signaling via alerts.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240416010837.333694-25-zfigura@codeweavers.com>
Date: Mon, 15 Apr 2024 20:08:34 -0500
From: Elizabeth Figura <zfigura@...eweavers.com>
To: Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jonathan Corbet <corbet@....net>,
	Shuah Khan <shuah@...nel.org>
Cc: linux-kernel@...r.kernel.org,
	linux-api@...r.kernel.org,
	wine-devel@...ehq.org,
	André Almeida <andrealmeid@...lia.com>,
	Wolfram Sang <wsa@...nel.org>,
	Arkadiusz Hiler <ahiler@...eweavers.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Andy Lutomirski <luto@...nel.org>,
	linux-doc@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	Randy Dunlap <rdunlap@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Will Deacon <will@...nel.org>,
	Waiman Long <longman@...hat.com>,
	Boqun Feng <boqun.feng@...il.com>,
	Elizabeth Figura <zfigura@...eweavers.com>
Subject: [PATCH v4 24/27] selftests: ntsync: Add some tests for wakeup signaling via alerts.

Expand the alert tests to cover alerting a thread mid-wait, to test that the
relevant scheduling logic works correctly.

Signed-off-by: Elizabeth Figura <zfigura@...eweavers.com>
---
 .../testing/selftests/drivers/ntsync/ntsync.c | 62 +++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/tools/testing/selftests/drivers/ntsync/ntsync.c b/tools/testing/selftests/drivers/ntsync/ntsync.c
index 5465a16d38b3..968874d7e325 100644
--- a/tools/testing/selftests/drivers/ntsync/ntsync.c
+++ b/tools/testing/selftests/drivers/ntsync/ntsync.c
@@ -1113,9 +1113,12 @@ TEST(wake_all)
 TEST(alert_any)
 {
 	struct ntsync_event_args event_args = {0};
+	struct ntsync_wait_args wait_args = {0};
 	struct ntsync_sem_args sem_args = {0};
 	__u32 index, count, signaled;
+	struct wait_args thread_args;
 	int objs[2], fd, ret;
+	pthread_t thread;
 
 	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
 	ASSERT_LE(0, fd);
@@ -1163,6 +1166,34 @@ TEST(alert_any)
 	EXPECT_EQ(0, ret);
 	EXPECT_EQ(2, index);
 
+	/* test wakeup via alert */
+
+	ret = ioctl(event_args.event, NTSYNC_IOC_EVENT_RESET, &signaled);
+	EXPECT_EQ(0, ret);
+
+	wait_args.timeout = get_abs_timeout(1000);
+	wait_args.objs = (uintptr_t)objs;
+	wait_args.count = 2;
+	wait_args.owner = 123;
+	wait_args.index = 0xdeadbeef;
+	wait_args.alert = event_args.event;
+	thread_args.fd = fd;
+	thread_args.args = &wait_args;
+	thread_args.request = NTSYNC_IOC_WAIT_ANY;
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	ret = ioctl(event_args.event, NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, thread_args.ret);
+	EXPECT_EQ(2, wait_args.index);
+
 	close(event_args.event);
 
 	/* test with an auto-reset event */
@@ -1199,9 +1230,12 @@ TEST(alert_any)
 TEST(alert_all)
 {
 	struct ntsync_event_args event_args = {0};
+	struct ntsync_wait_args wait_args = {0};
 	struct ntsync_sem_args sem_args = {0};
+	struct wait_args thread_args;
 	__u32 index, count, signaled;
 	int objs[2], fd, ret;
+	pthread_t thread;
 
 	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
 	ASSERT_LE(0, fd);
@@ -1235,6 +1269,34 @@ TEST(alert_all)
 	EXPECT_EQ(0, ret);
 	EXPECT_EQ(2, index);
 
+	/* test wakeup via alert */
+
+	ret = ioctl(event_args.event, NTSYNC_IOC_EVENT_RESET, &signaled);
+	EXPECT_EQ(0, ret);
+
+	wait_args.timeout = get_abs_timeout(1000);
+	wait_args.objs = (uintptr_t)objs;
+	wait_args.count = 2;
+	wait_args.owner = 123;
+	wait_args.index = 0xdeadbeef;
+	wait_args.alert = event_args.event;
+	thread_args.fd = fd;
+	thread_args.args = &wait_args;
+	thread_args.request = NTSYNC_IOC_WAIT_ALL;
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	ret = ioctl(event_args.event, NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, thread_args.ret);
+	EXPECT_EQ(2, wait_args.index);
+
 	close(event_args.event);
 
 	/* test with an auto-reset event */
-- 
2.43.0