* [LTP] [PATCH v4 01/11] Add KEYCTL_WATCH_KEY to lapi/keyctl.h fallback
2022-01-07 21:20 [LTP] [PATCH v4 00/11] watchqueue testing suite Andrea Cervesato
@ 2022-01-07 21:20 ` Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 02/11] Add lapi/watch_queue.h header fallback Andrea Cervesato
` (9 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Andrea Cervesato @ 2022-01-07 21:20 UTC (permalink / raw)
To: ltp
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
include/lapi/keyctl.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/lapi/keyctl.h b/include/lapi/keyctl.h
index d899345c9..3be782494 100644
--- a/include/lapi/keyctl.h
+++ b/include/lapi/keyctl.h
@@ -140,6 +140,10 @@ static inline key_serial_t keyctl_join_session_keyring(const char *name) {
# define KEYCTL_INVALIDATE 21
#endif
+#ifndef KEYCTL_WATCH_KEY
+# define KEYCTL_WATCH_KEY 32
+#endif
+
/* key permissions */
#ifndef KEY_POS_VIEW
# define KEY_POS_VIEW 0x01000000
--
2.34.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 13+ messages in thread* [LTP] [PATCH v4 02/11] Add lapi/watch_queue.h header fallback
2022-01-07 21:20 [LTP] [PATCH v4 00/11] watchqueue testing suite Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 01/11] Add KEYCTL_WATCH_KEY to lapi/keyctl.h fallback Andrea Cervesato
@ 2022-01-07 21:20 ` Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 03/11] Add wqueue01 test Andrea Cervesato
` (8 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Andrea Cervesato @ 2022-01-07 21:20 UTC (permalink / raw)
To: ltp
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
include/lapi/watch_queue.h | 112 +++++++++++++++++++++++++++++++++++++
1 file changed, 112 insertions(+)
create mode 100644 include/lapi/watch_queue.h
diff --git a/include/lapi/watch_queue.h b/include/lapi/watch_queue.h
new file mode 100644
index 000000000..438e62239
--- /dev/null
+++ b/include/lapi/watch_queue.h
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ *
+ * This file is created to resolve conflicts between user space and kernel
+ * space fctnl.h declaration. linux/watch_queue.h is not handled, since
+ * user space fcntl.h redefines kernel space structures.
+ */
+
+#ifndef LAPI_WATCH_QUEUE_H__
+#define LAPI_WATCH_QUEUE_H__
+
+#include <stdint.h>
+#include "lapi/ioctl.h"
+#include "lapi/fcntl.h"
+
+#define O_NOTIFICATION_PIPE O_EXCL /* Parameter to pipe2() selecting notification pipe */
+
+#define IOC_WATCH_QUEUE_SET_SIZE _IO('W', 0x60) /* Set the size in pages */
+#define IOC_WATCH_QUEUE_SET_FILTER _IO('W', 0x61) /* Set the filter */
+
+enum watch_notification_type {
+ WATCH_TYPE_META = 0, /* Special record */
+ WATCH_TYPE_KEY_NOTIFY = 1, /* Key change event notification */
+ WATCH_TYPE__NR = 2
+};
+
+enum watch_meta_notification_subtype {
+ WATCH_META_REMOVAL_NOTIFICATION = 0, /* Watched object was removed */
+ WATCH_META_LOSS_NOTIFICATION = 1, /* Data loss occurred */
+};
+
+/*
+ * Notification record header. This is aligned to 64-bits so that subclasses
+ * can contain __u64 fields.
+ */
+struct watch_notification {
+ uint32_t type:24; /* enum watch_notification_type */
+ uint32_t subtype:8; /* Type-specific subtype (filterable) */
+ uint32_t info;
+#define WATCH_INFO_LENGTH 0x0000007f /* Length of record */
+#define WATCH_INFO_LENGTH__SHIFT 0
+#define WATCH_INFO_ID 0x0000ff00 /* ID of watchpoint */
+#define WATCH_INFO_ID__SHIFT 8
+#define WATCH_INFO_TYPE_INFO 0xffff0000 /* Type-specific info */
+#define WATCH_INFO_TYPE_INFO__SHIFT 16
+#define WATCH_INFO_FLAG_0 0x00010000 /* Type-specific info, flag bit 0 */
+#define WATCH_INFO_FLAG_1 0x00020000 /* ... */
+#define WATCH_INFO_FLAG_2 0x00040000
+#define WATCH_INFO_FLAG_3 0x00080000
+#define WATCH_INFO_FLAG_4 0x00100000
+#define WATCH_INFO_FLAG_5 0x00200000
+#define WATCH_INFO_FLAG_6 0x00400000
+#define WATCH_INFO_FLAG_7 0x00800000
+};
+
+/*
+ * Notification filtering rules (IOC_WATCH_QUEUE_SET_FILTER).
+ */
+struct watch_notification_type_filter {
+ uint32_t type; /* Type to apply filter to */
+ uint32_t info_filter; /* Filter on watch_notification::info */
+ uint32_t info_mask; /* Mask of relevant bits in info_filter */
+ uint32_t subtype_filter[8]; /* Bitmask of subtypes to filter on */
+};
+
+struct watch_notification_filter {
+ uint32_t nr_filters; /* Number of filters */
+ uint32_t __reserved; /* Must be 0 */
+ struct watch_notification_type_filter filters[];
+};
+
+
+/*
+ * Extended watch removal notification. This is used optionally if the type
+ * wants to indicate an identifier for the object being watched, if there is
+ * such. This can be distinguished by the length.
+ *
+ * type -> WATCH_TYPE_META
+ * subtype -> WATCH_META_REMOVAL_NOTIFICATION
+ */
+struct watch_notification_removal {
+ struct watch_notification watch;
+ uint64_t id; /* Type-dependent identifier */
+};
+
+/*
+ * Type of key/keyring change notification.
+ */
+enum key_notification_subtype {
+ NOTIFY_KEY_INSTANTIATED = 0, /* Key was instantiated (aux is error code) */
+ NOTIFY_KEY_UPDATED = 1, /* Key was updated */
+ NOTIFY_KEY_LINKED = 2, /* Key (aux) was added to watched keyring */
+ NOTIFY_KEY_UNLINKED = 3, /* Key (aux) was removed from watched keyring */
+ NOTIFY_KEY_CLEARED = 4, /* Keyring was cleared */
+ NOTIFY_KEY_REVOKED = 5, /* Key was revoked */
+ NOTIFY_KEY_INVALIDATED = 6, /* Key was invalidated */
+ NOTIFY_KEY_SETATTR = 7, /* Key's attributes got changed */
+};
+
+/*
+ * Key/keyring notification record.
+ * - watch.type = WATCH_TYPE_KEY_NOTIFY
+ * - watch.subtype = enum key_notification_type
+ */
+struct key_notification {
+ struct watch_notification watch;
+ uint32_t key_id; /* The key/keyring affected */
+ uint32_t aux; /* Per-type auxiliary data */
+};
+
+#endif /* LAPI_WATCH_QUEUE_H__ */
--
2.34.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 13+ messages in thread* [LTP] [PATCH v4 03/11] Add wqueue01 test
2022-01-07 21:20 [LTP] [PATCH v4 00/11] watchqueue testing suite Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 01/11] Add KEYCTL_WATCH_KEY to lapi/keyctl.h fallback Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 02/11] Add lapi/watch_queue.h header fallback Andrea Cervesato
@ 2022-01-07 21:20 ` Andrea Cervesato
2022-01-26 11:58 ` Cyril Hrubis
2022-01-07 21:20 ` [LTP] [PATCH v4 04/11] Add wqueue02 test Andrea Cervesato
` (7 subsequent siblings)
10 siblings, 1 reply; 13+ messages in thread
From: Andrea Cervesato @ 2022-01-07 21:20 UTC (permalink / raw)
To: ltp
This test is testing NOTIFY_KEY_UPDATED event
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
runtest/watchqueue | 9 ++
scenario_groups/default | 1 +
testcases/kernel/Makefile | 1 +
testcases/kernel/watchqueue/.gitignore | 9 ++
testcases/kernel/watchqueue/Makefile | 8 ++
testcases/kernel/watchqueue/common.h | 149 +++++++++++++++++++++++++
testcases/kernel/watchqueue/wqueue01.c | 40 +++++++
7 files changed, 217 insertions(+)
create mode 100644 runtest/watchqueue
create mode 100644 testcases/kernel/watchqueue/.gitignore
create mode 100644 testcases/kernel/watchqueue/Makefile
create mode 100644 testcases/kernel/watchqueue/common.h
create mode 100644 testcases/kernel/watchqueue/wqueue01.c
diff --git a/runtest/watchqueue b/runtest/watchqueue
new file mode 100644
index 000000000..bd6b0a423
--- /dev/null
+++ b/runtest/watchqueue
@@ -0,0 +1,9 @@
+wqueue01 wqueue01
+wqueue02 wqueue02
+wqueue03 wqueue03
+wqueue04 wqueue04
+wqueue05 wqueue05
+wqueue06 wqueue06
+wqueue07 wqueue07
+wqueue08 wqueue08
+wqueue09 wqueue09
diff --git a/scenario_groups/default b/scenario_groups/default
index 1dc2987d5..68bd5300d 100644
--- a/scenario_groups/default
+++ b/scenario_groups/default
@@ -30,3 +30,4 @@ cve
crypto
kernel_misc
uevent
+watchqueue
diff --git a/testcases/kernel/Makefile b/testcases/kernel/Makefile
index 4604f1f38..d44856c57 100644
--- a/testcases/kernel/Makefile
+++ b/testcases/kernel/Makefile
@@ -38,6 +38,7 @@ SUBDIRS += connectors \
sound \
tracing \
uevents \
+ watchqueue \
ifeq ($(WITH_POWER_MANAGEMENT_TESTSUITE),yes)
SUBDIRS += power_management
diff --git a/testcases/kernel/watchqueue/.gitignore b/testcases/kernel/watchqueue/.gitignore
new file mode 100644
index 000000000..dcfcd8272
--- /dev/null
+++ b/testcases/kernel/watchqueue/.gitignore
@@ -0,0 +1,9 @@
+wqueue01
+wqueue02
+wqueue03
+wqueue04
+wqueue05
+wqueue06
+wqueue07
+wqueue08
+wqueue09
diff --git a/testcases/kernel/watchqueue/Makefile b/testcases/kernel/watchqueue/Makefile
new file mode 100644
index 000000000..896d66d42
--- /dev/null
+++ b/testcases/kernel/watchqueue/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+top_srcdir ?= ../../..
+
+include $(top_srcdir)/include/mk/testcases.mk
+include $(top_srcdir)/include/mk/generic_leaf_target.mk
+
+LDLIBS += $(KEYUTILS_LIBS)
diff --git a/testcases/kernel/watchqueue/common.h b/testcases/kernel/watchqueue/common.h
new file mode 100644
index 000000000..00d19b5bc
--- /dev/null
+++ b/testcases/kernel/watchqueue/common.h
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+#ifndef WQUEUE_COMMON_H__
+#define WQUEUE_COMMON_H__
+
+#include "tst_test.h"
+#include "lapi/watch_queue.h"
+#include "lapi/keyctl.h"
+
+static struct watch_notification_filter wqueue_filter = {
+ .nr_filters = 2,
+ .filters = {
+ [0] = {
+ .type = WATCH_TYPE_META,
+ .subtype_filter[0] = UINT_MAX,
+ },
+ [1] = {
+ .type = WATCH_TYPE_KEY_NOTIFY,
+ .subtype_filter[0] = UINT_MAX,
+ },
+ },
+};
+
+static inline int wqueue_key_event(struct watch_notification *n, size_t len, unsigned int wtype, int type)
+{
+ struct key_notification *k;
+ const char* msg;
+
+ if (wtype != WATCH_TYPE_KEY_NOTIFY)
+ return 0;
+
+ if (len != sizeof(struct key_notification))
+ tst_brk(TBROK, "Incorrect key message length");
+
+ switch (n->subtype) {
+ case NOTIFY_KEY_INSTANTIATED:
+ msg = "instantiated";
+ break;
+ case NOTIFY_KEY_UPDATED:
+ msg = "updated";
+ break;
+ case NOTIFY_KEY_LINKED:
+ msg = "linked";
+ break;
+ case NOTIFY_KEY_UNLINKED:
+ msg = "unlinked";
+ break;
+ case NOTIFY_KEY_CLEARED:
+ msg = "cleared";
+ break;
+ case NOTIFY_KEY_REVOKED:
+ msg = "revoked";
+ break;
+ case NOTIFY_KEY_INVALIDATED:
+ msg = "invalidated";
+ break;
+ case NOTIFY_KEY_SETATTR:
+ msg = "setattr";
+ break;
+ default:
+ msg = "Invalid notification";
+ break;
+ };
+
+ k = (struct key_notification *)n;
+ tst_res(TINFO, "KEY %08x change=%u[%s] aux=%u",
+ k->key_id, n->subtype, msg, k->aux);
+
+ if (n->subtype == type)
+ return 1;
+
+ return 0;
+}
+
+static inline key_serial_t wqueue_add_key(int fd)
+{
+ key_serial_t key;
+
+ key = add_key("user", "ltptestkey", "a", 1, KEY_SPEC_SESSION_KEYRING);
+ if (key == -1)
+ tst_brk(TBROK, "add_key error: %s", tst_strerrno(errno));
+
+ keyctl(KEYCTL_WATCH_KEY, key, fd, 0x01);
+ keyctl(KEYCTL_WATCH_KEY, KEY_SPEC_SESSION_KEYRING, fd, 0x02);
+
+ return key;
+}
+
+static inline int wqueue_watch(int buf_size, struct watch_notification_filter *filter)
+{
+ int pipefd[2];
+ int fd;
+
+ SAFE_PIPE2(pipefd, O_NOTIFICATION_PIPE);
+
+ fd = pipefd[0];
+
+ SAFE_IOCTL(fd, IOC_WATCH_QUEUE_SET_SIZE, buf_size);
+ SAFE_IOCTL(fd, IOC_WATCH_QUEUE_SET_FILTER, filter);
+
+ return fd;
+}
+
+typedef void (*wqueue_callback) (struct watch_notification *n, size_t len, unsigned int wtype);
+
+static void wqueue_consumer(int fd, wqueue_callback cb)
+{
+ unsigned char buffer[433], *p, *end;
+ union {
+ struct watch_notification n;
+ unsigned char buf1[128];
+ } n;
+ ssize_t buf_len;
+
+ tst_res(TINFO, "Reading watch queue events");
+
+ buf_len = SAFE_READ(0, fd, buffer, sizeof(buffer));
+
+ p = buffer;
+ end = buffer + buf_len;
+ while (p < end) {
+ size_t largest, len;
+
+ largest = end - p;
+ if (largest > 128)
+ largest = 128;
+
+ if (largest < sizeof(struct watch_notification))
+ tst_brk(TBROK, "Short message header: %zu", largest);
+
+ memcpy(&n, p, largest);
+
+ tst_res(TINFO, "NOTIFY[%03zx]: ty=%06x sy=%02x i=%08x",
+ p - buffer, n.n.type, n.n.subtype, n.n.info);
+
+ len = n.n.info & WATCH_INFO_LENGTH;
+ if (len < sizeof(n.n) || len > largest)
+ tst_brk(TBROK, "Bad message length: %zu/%zu", len, largest);
+
+ cb(&n.n, len, n.n.type);
+
+ p += len;
+ }
+}
+
+#endif
diff --git a/testcases/kernel/watchqueue/wqueue01.c b/testcases/kernel/watchqueue/wqueue01.c
new file mode 100644
index 000000000..24c3908ce
--- /dev/null
+++ b/testcases/kernel/watchqueue/wqueue01.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * Test if keyctl update is correctly recognized by watch queue.
+ */
+
+#include "tst_test.h"
+#include "lapi/keyctl.h"
+#include "common.h"
+
+static void saw_key_updated(struct watch_notification *n, size_t len, unsigned int wtype)
+{
+ if (wqueue_key_event(n, len, wtype, NOTIFY_KEY_UPDATED))
+ tst_res(TPASS, "keyctl update has been recognized");
+ else
+ tst_res(TFAIL, "keyctl update has not been recognized");
+}
+
+static void run(void)
+{
+ int fd;
+ key_serial_t key;
+
+ fd = wqueue_watch(256, &wqueue_filter);
+ key = wqueue_add_key(fd);
+
+ keyctl(KEYCTL_UPDATE, key, "b", 1);
+ wqueue_consumer(fd, saw_key_updated);
+
+ SAFE_CLOSE(fd);
+}
+
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.34.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [LTP] [PATCH v4 03/11] Add wqueue01 test
2022-01-07 21:20 ` [LTP] [PATCH v4 03/11] Add wqueue01 test Andrea Cervesato
@ 2022-01-26 11:58 ` Cyril Hrubis
0 siblings, 0 replies; 13+ messages in thread
From: Cyril Hrubis @ 2022-01-26 11:58 UTC (permalink / raw)
To: Andrea Cervesato; +Cc: ltp
Hi!
> Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
> ---
> runtest/watchqueue | 9 ++
> scenario_groups/default | 1 +
> testcases/kernel/Makefile | 1 +
> testcases/kernel/watchqueue/.gitignore | 9 ++
> testcases/kernel/watchqueue/Makefile | 8 ++
> testcases/kernel/watchqueue/common.h | 149 +++++++++++++++++++++++++
> testcases/kernel/watchqueue/wqueue01.c | 40 +++++++
> 7 files changed, 217 insertions(+)
> create mode 100644 runtest/watchqueue
> create mode 100644 testcases/kernel/watchqueue/.gitignore
> create mode 100644 testcases/kernel/watchqueue/Makefile
> create mode 100644 testcases/kernel/watchqueue/common.h
> create mode 100644 testcases/kernel/watchqueue/wqueue01.c
>
> diff --git a/runtest/watchqueue b/runtest/watchqueue
> new file mode 100644
> index 000000000..bd6b0a423
> --- /dev/null
> +++ b/runtest/watchqueue
> @@ -0,0 +1,9 @@
> +wqueue01 wqueue01
> +wqueue02 wqueue02
> +wqueue03 wqueue03
> +wqueue04 wqueue04
> +wqueue05 wqueue05
> +wqueue06 wqueue06
> +wqueue07 wqueue07
> +wqueue08 wqueue08
> +wqueue09 wqueue09
While this is minor, such entries should be added with each respective
test.
> diff --git a/scenario_groups/default b/scenario_groups/default
> index 1dc2987d5..68bd5300d 100644
> --- a/scenario_groups/default
> +++ b/scenario_groups/default
> @@ -30,3 +30,4 @@ cve
> crypto
> kernel_misc
> uevent
> +watchqueue
> diff --git a/testcases/kernel/Makefile b/testcases/kernel/Makefile
> index 4604f1f38..d44856c57 100644
> --- a/testcases/kernel/Makefile
> +++ b/testcases/kernel/Makefile
> @@ -38,6 +38,7 @@ SUBDIRS += connectors \
> sound \
> tracing \
> uevents \
> + watchqueue \
>
> ifeq ($(WITH_POWER_MANAGEMENT_TESTSUITE),yes)
> SUBDIRS += power_management
> diff --git a/testcases/kernel/watchqueue/.gitignore b/testcases/kernel/watchqueue/.gitignore
> new file mode 100644
> index 000000000..dcfcd8272
> --- /dev/null
> +++ b/testcases/kernel/watchqueue/.gitignore
> @@ -0,0 +1,9 @@
> +wqueue01
> +wqueue02
> +wqueue03
> +wqueue04
> +wqueue05
> +wqueue06
> +wqueue07
> +wqueue08
> +wqueue09
Same here.
> diff --git a/testcases/kernel/watchqueue/Makefile b/testcases/kernel/watchqueue/Makefile
> new file mode 100644
> index 000000000..896d66d42
> --- /dev/null
> +++ b/testcases/kernel/watchqueue/Makefile
> @@ -0,0 +1,8 @@
> +# SPDX-License-Identifier: GPL-2.0-or-later
> +
> +top_srcdir ?= ../../..
> +
> +include $(top_srcdir)/include/mk/testcases.mk
> +include $(top_srcdir)/include/mk/generic_leaf_target.mk
> +
> +LDLIBS += $(KEYUTILS_LIBS)
> diff --git a/testcases/kernel/watchqueue/common.h b/testcases/kernel/watchqueue/common.h
> new file mode 100644
> index 000000000..00d19b5bc
> --- /dev/null
> +++ b/testcases/kernel/watchqueue/common.h
> @@ -0,0 +1,149 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
> + */
> +
> +#ifndef WQUEUE_COMMON_H__
> +#define WQUEUE_COMMON_H__
> +
> +#include "tst_test.h"
> +#include "lapi/watch_queue.h"
> +#include "lapi/keyctl.h"
> +
> +static struct watch_notification_filter wqueue_filter = {
> + .nr_filters = 2,
> + .filters = {
> + [0] = {
> + .type = WATCH_TYPE_META,
> + .subtype_filter[0] = UINT_MAX,
> + },
> + [1] = {
> + .type = WATCH_TYPE_KEY_NOTIFY,
> + .subtype_filter[0] = UINT_MAX,
> + },
> + },
> +};
> +
> +static inline int wqueue_key_event(struct watch_notification *n, size_t len, unsigned int wtype, int type)
> +{
> + struct key_notification *k;
> + const char* msg;
> +
> + if (wtype != WATCH_TYPE_KEY_NOTIFY)
> + return 0;
> +
> + if (len != sizeof(struct key_notification))
> + tst_brk(TBROK, "Incorrect key message length");
> +
> + switch (n->subtype) {
> + case NOTIFY_KEY_INSTANTIATED:
> + msg = "instantiated";
> + break;
> + case NOTIFY_KEY_UPDATED:
> + msg = "updated";
> + break;
> + case NOTIFY_KEY_LINKED:
> + msg = "linked";
> + break;
> + case NOTIFY_KEY_UNLINKED:
> + msg = "unlinked";
> + break;
> + case NOTIFY_KEY_CLEARED:
> + msg = "cleared";
> + break;
> + case NOTIFY_KEY_REVOKED:
> + msg = "revoked";
> + break;
> + case NOTIFY_KEY_INVALIDATED:
> + msg = "invalidated";
> + break;
> + case NOTIFY_KEY_SETATTR:
> + msg = "setattr";
> + break;
> + default:
> + msg = "Invalid notification";
> + break;
> + };
> +
> + k = (struct key_notification *)n;
> + tst_res(TINFO, "KEY %08x change=%u[%s] aux=%u",
> + k->key_id, n->subtype, msg, k->aux);
> +
> + if (n->subtype == type)
> + return 1;
> +
> + return 0;
> +}
> +
> +static inline key_serial_t wqueue_add_key(int fd)
> +{
> + key_serial_t key;
> +
> + key = add_key("user", "ltptestkey", "a", 1, KEY_SPEC_SESSION_KEYRING);
> + if (key == -1)
> + tst_brk(TBROK, "add_key error: %s", tst_strerrno(errno));
> +
> + keyctl(KEYCTL_WATCH_KEY, key, fd, 0x01);
> + keyctl(KEYCTL_WATCH_KEY, KEY_SPEC_SESSION_KEYRING, fd, 0x02);
> +
> + return key;
> +}
> +
> +static inline int wqueue_watch(int buf_size, struct watch_notification_filter *filter)
> +{
> + int pipefd[2];
> + int fd;
> +
> + SAFE_PIPE2(pipefd, O_NOTIFICATION_PIPE);
We can get two different errors here that should be translated to TCONF.
If you look at watch_queue.h in the linux kernel sources it looks like:
#ifdef CONFIG_WATCH_QUEUE
...
#else
static inline int watch_queue_init(struct pipe_inode_info *pipe)
{
return -ENOPKG;
}
#endif
So in the case that CONFIG_WATCH_QUEUE is not set pipe2() with
O_NOTIFICATION_PIPE will fail with errno set to ENOPKG.
And on kernels that are older than the watch queue implementation we will
trip over:
if (flags & ~(O_CLOEXEC | O_NONBLOCK | O_DIRECT))
return -EINVAL;
In the __do_pipe_flags() function and the call will fail with EINVAL
instead.
So this code should look like:
TEST(pipe2(pipefd, O_NOTIFICATION_PIPE));
if (TST_RET) {
switch (TST_ERR) {
case ENOPKG:
tst_brk(TCONF | TTERRNO, "CONFIG_WATCH_QUEUE is not set");
break;
case EINVAL:
tst_brk(TCONF | TTERRNO, "O_NOTIFICATION_PIPE is not supported");
break;
default:
tst_brk(TBROK | TTERRNO, "pipe2() returned %ld", TST_RET);
}
}
> + fd = pipefd[0];
> +
> + SAFE_IOCTL(fd, IOC_WATCH_QUEUE_SET_SIZE, buf_size);
> + SAFE_IOCTL(fd, IOC_WATCH_QUEUE_SET_FILTER, filter);
> +
> + return fd;
> +}
> +
> +typedef void (*wqueue_callback) (struct watch_notification *n, size_t len, unsigned int wtype);
> +
> +static void wqueue_consumer(int fd, wqueue_callback cb)
> +{
> + unsigned char buffer[433], *p, *end;
> + union {
> + struct watch_notification n;
> + unsigned char buf1[128];
> + } n;
> + ssize_t buf_len;
> +
> + tst_res(TINFO, "Reading watch queue events");
> +
> + buf_len = SAFE_READ(0, fd, buffer, sizeof(buffer));
> +
> + p = buffer;
> + end = buffer + buf_len;
> + while (p < end) {
> + size_t largest, len;
> +
> + largest = end - p;
> + if (largest > 128)
> + largest = 128;
> +
> + if (largest < sizeof(struct watch_notification))
> + tst_brk(TBROK, "Short message header: %zu", largest);
> +
> + memcpy(&n, p, largest);
> +
> + tst_res(TINFO, "NOTIFY[%03zx]: ty=%06x sy=%02x i=%08x",
> + p - buffer, n.n.type, n.n.subtype, n.n.info);
> +
> + len = n.n.info & WATCH_INFO_LENGTH;
> + if (len < sizeof(n.n) || len > largest)
> + tst_brk(TBROK, "Bad message length: %zu/%zu", len, largest);
> +
> + cb(&n.n, len, n.n.type);
> +
> + p += len;
> + }
> +}
> +
> +#endif
> diff --git a/testcases/kernel/watchqueue/wqueue01.c b/testcases/kernel/watchqueue/wqueue01.c
> new file mode 100644
> index 000000000..24c3908ce
> --- /dev/null
> +++ b/testcases/kernel/watchqueue/wqueue01.c
> @@ -0,0 +1,40 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
> + */
> +
> +/*\
> + * [Description]
> + *
> + * Test if keyctl update is correctly recognized by watch queue.
> + */
> +
> +#include "tst_test.h"
> +#include "lapi/keyctl.h"
> +#include "common.h"
> +
> +static void saw_key_updated(struct watch_notification *n, size_t len, unsigned int wtype)
> +{
> + if (wqueue_key_event(n, len, wtype, NOTIFY_KEY_UPDATED))
> + tst_res(TPASS, "keyctl update has been recognized");
> + else
> + tst_res(TFAIL, "keyctl update has not been recognized");
> +}
> +
> +static void run(void)
> +{
> + int fd;
> + key_serial_t key;
> +
> + fd = wqueue_watch(256, &wqueue_filter);
> + key = wqueue_add_key(fd);
> +
> + keyctl(KEYCTL_UPDATE, key, "b", 1);
> + wqueue_consumer(fd, saw_key_updated);
> +
> + SAFE_CLOSE(fd);
> +}
> +
> +static struct tst_test test = {
> + .test_all = run,
> +};
> --
> 2.34.1
>
>
> --
> Mailing list info: https://lists.linux.it/listinfo/ltp
--
Cyril Hrubis
chrubis@suse.cz
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 13+ messages in thread
* [LTP] [PATCH v4 04/11] Add wqueue02 test
2022-01-07 21:20 [LTP] [PATCH v4 00/11] watchqueue testing suite Andrea Cervesato
` (2 preceding siblings ...)
2022-01-07 21:20 ` [LTP] [PATCH v4 03/11] Add wqueue01 test Andrea Cervesato
@ 2022-01-07 21:20 ` Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 05/11] Add wqueue03 test Andrea Cervesato
` (6 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Andrea Cervesato @ 2022-01-07 21:20 UTC (permalink / raw)
To: ltp
This test is testing NOTIFY_KEY_UNLINKED event
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
testcases/kernel/watchqueue/wqueue02.c | 40 ++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100644 testcases/kernel/watchqueue/wqueue02.c
diff --git a/testcases/kernel/watchqueue/wqueue02.c b/testcases/kernel/watchqueue/wqueue02.c
new file mode 100644
index 000000000..cf012fd15
--- /dev/null
+++ b/testcases/kernel/watchqueue/wqueue02.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * Test if keyctl unlink is correctly recognized by watch queue.
+ */
+
+#include "tst_test.h"
+#include "lapi/keyctl.h"
+#include "common.h"
+
+static void saw_key_unlinked(struct watch_notification *n, size_t len, unsigned int wtype)
+{
+ if (wqueue_key_event(n, len, wtype, NOTIFY_KEY_UNLINKED))
+ tst_res(TPASS, "keyctl unlink has been recognized");
+ else
+ tst_res(TFAIL, "keyctl unlink has not been recognized");
+}
+
+static void run(void)
+{
+ int fd;
+ key_serial_t key;
+
+ fd = wqueue_watch(256, &wqueue_filter);
+ key = wqueue_add_key(fd);
+
+ keyctl(KEYCTL_UNLINK, key, KEY_SPEC_SESSION_KEYRING);
+ wqueue_consumer(fd, saw_key_unlinked);
+
+ SAFE_CLOSE(fd);
+}
+
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.34.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
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2022-01-07 21:20 ` [LTP] [PATCH v4 04/11] Add wqueue02 test Andrea Cervesato
@ 2022-01-07 21:20 ` Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 06/11] Add wqueue04 test Andrea Cervesato
` (5 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Andrea Cervesato @ 2022-01-07 21:20 UTC (permalink / raw)
To: ltp
This test is testing NOTIFY_KEY_REVOKED event
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
testcases/kernel/watchqueue/wqueue03.c | 40 ++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100644 testcases/kernel/watchqueue/wqueue03.c
diff --git a/testcases/kernel/watchqueue/wqueue03.c b/testcases/kernel/watchqueue/wqueue03.c
new file mode 100644
index 000000000..50beaefdc
--- /dev/null
+++ b/testcases/kernel/watchqueue/wqueue03.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * Test if keyctl revoke is correctly recognized by watch queue.
+ */
+
+#include "tst_test.h"
+#include "lapi/keyctl.h"
+#include "common.h"
+
+static void saw_key_revoked(struct watch_notification *n, size_t len, unsigned int wtype)
+{
+ if (wqueue_key_event(n, len, wtype, NOTIFY_KEY_REVOKED))
+ tst_res(TPASS, "keyctl revoke has been recognized");
+ else
+ tst_res(TFAIL, "keyctl revoke has not been recognized");
+}
+
+static void run(void)
+{
+ int fd;
+ key_serial_t key;
+
+ fd = wqueue_watch(256, &wqueue_filter);
+ key = wqueue_add_key(fd);
+
+ keyctl(KEYCTL_REVOKE, key);
+ wqueue_consumer(fd, saw_key_revoked);
+
+ SAFE_CLOSE(fd);
+}
+
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.34.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
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2022-01-07 21:20 [LTP] [PATCH v4 00/11] watchqueue testing suite Andrea Cervesato
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2022-01-07 21:20 ` [LTP] [PATCH v4 05/11] Add wqueue03 test Andrea Cervesato
@ 2022-01-07 21:20 ` Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 07/11] Add wqueue05 test Andrea Cervesato
` (4 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Andrea Cervesato @ 2022-01-07 21:20 UTC (permalink / raw)
To: ltp
This test is testing NOTIFY_KEY_LINKED event
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
testcases/kernel/watchqueue/wqueue04.c | 40 ++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100644 testcases/kernel/watchqueue/wqueue04.c
diff --git a/testcases/kernel/watchqueue/wqueue04.c b/testcases/kernel/watchqueue/wqueue04.c
new file mode 100644
index 000000000..04e99e891
--- /dev/null
+++ b/testcases/kernel/watchqueue/wqueue04.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * Test if keyctl link is correctly recognized by watch queue.
+ */
+
+#include "tst_test.h"
+#include "lapi/keyctl.h"
+#include "common.h"
+
+static void saw_key_linked(struct watch_notification *n, size_t len, unsigned int wtype)
+{
+ if (wqueue_key_event(n, len, wtype, NOTIFY_KEY_LINKED))
+ tst_res(TPASS, "keyctl link has been recognized");
+ else
+ tst_res(TFAIL, "keyctl link has not been recognized");
+}
+
+static void run(void)
+{
+ int fd;
+ key_serial_t key;
+
+ fd = wqueue_watch(256, &wqueue_filter);
+ key = wqueue_add_key(fd);
+
+ keyctl(KEYCTL_LINK, key, KEY_SPEC_SESSION_KEYRING);
+ wqueue_consumer(fd, saw_key_linked);
+
+ SAFE_CLOSE(fd);
+}
+
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.34.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 13+ messages in thread* [LTP] [PATCH v4 07/11] Add wqueue05 test
2022-01-07 21:20 [LTP] [PATCH v4 00/11] watchqueue testing suite Andrea Cervesato
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2022-01-07 21:20 ` [LTP] [PATCH v4 06/11] Add wqueue04 test Andrea Cervesato
@ 2022-01-07 21:20 ` Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 08/11] Add wqueue06 test Andrea Cervesato
` (3 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Andrea Cervesato @ 2022-01-07 21:20 UTC (permalink / raw)
To: ltp
This test is testing NOTIFY_KEY_INVALIDATED event
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
testcases/kernel/watchqueue/wqueue05.c | 40 ++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100644 testcases/kernel/watchqueue/wqueue05.c
diff --git a/testcases/kernel/watchqueue/wqueue05.c b/testcases/kernel/watchqueue/wqueue05.c
new file mode 100644
index 000000000..43e401512
--- /dev/null
+++ b/testcases/kernel/watchqueue/wqueue05.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * Test if keyctl invalidate is correctly recognized by watch queue.
+ */
+
+#include "tst_test.h"
+#include "lapi/keyctl.h"
+#include "common.h"
+
+static void saw_key_invalidated(struct watch_notification *n, size_t len, unsigned int wtype)
+{
+ if (wqueue_key_event(n, len, wtype, NOTIFY_KEY_INVALIDATED))
+ tst_res(TPASS, "keyctl invalidate has been recognized");
+ else
+ tst_res(TFAIL, "keyctl invalidate has not been recognized");
+}
+
+static void run(void)
+{
+ int fd;
+ key_serial_t key;
+
+ fd = wqueue_watch(256, &wqueue_filter);
+ key = wqueue_add_key(fd);
+
+ keyctl(KEYCTL_INVALIDATE, key);
+ wqueue_consumer(fd, saw_key_invalidated);
+
+ SAFE_CLOSE(fd);
+}
+
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.34.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 13+ messages in thread* [LTP] [PATCH v4 08/11] Add wqueue06 test
2022-01-07 21:20 [LTP] [PATCH v4 00/11] watchqueue testing suite Andrea Cervesato
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2022-01-07 21:20 ` [LTP] [PATCH v4 07/11] Add wqueue05 test Andrea Cervesato
@ 2022-01-07 21:20 ` Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 09/11] Add wqueue07 test Andrea Cervesato
` (2 subsequent siblings)
10 siblings, 0 replies; 13+ messages in thread
From: Andrea Cervesato @ 2022-01-07 21:20 UTC (permalink / raw)
To: ltp
This test is testing NOTIFY_KEY_CLEARED event
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
testcases/kernel/watchqueue/wqueue06.c | 39 ++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
create mode 100644 testcases/kernel/watchqueue/wqueue06.c
diff --git a/testcases/kernel/watchqueue/wqueue06.c b/testcases/kernel/watchqueue/wqueue06.c
new file mode 100644
index 000000000..eb8fab82f
--- /dev/null
+++ b/testcases/kernel/watchqueue/wqueue06.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * Test if keyctl clear is correctly recognized by watch queue.
+ */
+
+#include "tst_test.h"
+#include "lapi/keyctl.h"
+#include "common.h"
+
+static void saw_key_cleared(struct watch_notification *n, size_t len, unsigned int wtype)
+{
+ if (wqueue_key_event(n, len, wtype, NOTIFY_KEY_CLEARED))
+ tst_res(TPASS, "keyctl clear has been recognized");
+ else
+ tst_res(TFAIL, "keyctl clear has not been recognized");
+}
+
+static void run(void)
+{
+ int fd;
+
+ fd = wqueue_watch(256, &wqueue_filter);
+ wqueue_add_key(fd);
+
+ keyctl(KEYCTL_CLEAR, KEY_SPEC_SESSION_KEYRING);
+ wqueue_consumer(fd, saw_key_cleared);
+
+ SAFE_CLOSE(fd);
+}
+
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.34.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 13+ messages in thread* [LTP] [PATCH v4 09/11] Add wqueue07 test
2022-01-07 21:20 [LTP] [PATCH v4 00/11] watchqueue testing suite Andrea Cervesato
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2022-01-07 21:20 ` [LTP] [PATCH v4 08/11] Add wqueue06 test Andrea Cervesato
@ 2022-01-07 21:20 ` Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 10/11] Add wqueue08 test Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 11/11] Add wqueue09 test Andrea Cervesato
10 siblings, 0 replies; 13+ messages in thread
From: Andrea Cervesato @ 2022-01-07 21:20 UTC (permalink / raw)
To: ltp
This test is testing NOTIFY_KEY_SETATTR event
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
testcases/kernel/watchqueue/wqueue07.c | 40 ++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100644 testcases/kernel/watchqueue/wqueue07.c
diff --git a/testcases/kernel/watchqueue/wqueue07.c b/testcases/kernel/watchqueue/wqueue07.c
new file mode 100644
index 000000000..1dbaee3e9
--- /dev/null
+++ b/testcases/kernel/watchqueue/wqueue07.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * Test if keyctl setperm is correctly recognized by watch queue.
+ */
+
+#include "tst_test.h"
+#include "lapi/keyctl.h"
+#include "common.h"
+
+static void saw_key_setattr(struct watch_notification *n, size_t len, unsigned int wtype)
+{
+ if (wqueue_key_event(n, len, wtype, NOTIFY_KEY_SETATTR))
+ tst_res(TPASS, "keyctl setattr has been recognized");
+ else
+ tst_res(TFAIL, "keyctl setattr has not been recognized");
+}
+
+static void run(void)
+{
+ int fd;
+ key_serial_t key;
+
+ fd = wqueue_watch(256, &wqueue_filter);
+ key = wqueue_add_key(fd);
+
+ keyctl(KEYCTL_SETPERM, key, KEY_POS_ALL | KEY_USR_ALL);
+ wqueue_consumer(fd, saw_key_setattr);
+
+ SAFE_CLOSE(fd);
+}
+
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.34.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 13+ messages in thread* [LTP] [PATCH v4 10/11] Add wqueue08 test
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2022-01-07 21:20 ` [LTP] [PATCH v4 09/11] Add wqueue07 test Andrea Cervesato
@ 2022-01-07 21:20 ` Andrea Cervesato
2022-01-07 21:20 ` [LTP] [PATCH v4 11/11] Add wqueue09 test Andrea Cervesato
10 siblings, 0 replies; 13+ messages in thread
From: Andrea Cervesato @ 2022-01-07 21:20 UTC (permalink / raw)
To: ltp
This test is testing WATCH_META_REMOVAL_NOTIFICATION event
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
testcases/kernel/watchqueue/wqueue08.c | 44 ++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
create mode 100644 testcases/kernel/watchqueue/wqueue08.c
diff --git a/testcases/kernel/watchqueue/wqueue08.c b/testcases/kernel/watchqueue/wqueue08.c
new file mode 100644
index 000000000..a8e01fbd2
--- /dev/null
+++ b/testcases/kernel/watchqueue/wqueue08.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * Test if key watch removal is correctly recognized by watch queue.
+ */
+
+#include "tst_test.h"
+#include "lapi/keyctl.h"
+#include "common.h"
+
+static void saw_watch_removal(struct watch_notification *n, LTP_ATTRIBUTE_UNUSED size_t len, unsigned int wtype)
+{
+ if (wtype != WATCH_TYPE_META)
+ return;
+
+ if (n->subtype == WATCH_META_REMOVAL_NOTIFICATION)
+ tst_res(TPASS, "Meta removal notification received");
+ else
+ tst_res(TFAIL, "Event not recognized");
+}
+
+static void run(void)
+{
+ int fd;
+ key_serial_t key;
+
+ fd = wqueue_watch(256, &wqueue_filter);
+ key = wqueue_add_key(fd);
+
+ /* if watch_id = -1 key is removed from the watch queue */
+ keyctl(KEYCTL_WATCH_KEY, key, fd, -1);
+ wqueue_consumer(fd, saw_watch_removal);
+
+ SAFE_CLOSE(fd);
+}
+
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.34.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 13+ messages in thread* [LTP] [PATCH v4 11/11] Add wqueue09 test
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` (9 preceding siblings ...)
2022-01-07 21:20 ` [LTP] [PATCH v4 10/11] Add wqueue08 test Andrea Cervesato
@ 2022-01-07 21:20 ` Andrea Cervesato
10 siblings, 0 replies; 13+ messages in thread
From: Andrea Cervesato @ 2022-01-07 21:20 UTC (permalink / raw)
To: ltp
This test is testing WATCH_META_LOSS_NOTIFICATION event
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
testcases/kernel/watchqueue/wqueue09.c | 52 ++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
create mode 100644 testcases/kernel/watchqueue/wqueue09.c
diff --git a/testcases/kernel/watchqueue/wqueue09.c b/testcases/kernel/watchqueue/wqueue09.c
new file mode 100644
index 000000000..ac49bb8a0
--- /dev/null
+++ b/testcases/kernel/watchqueue/wqueue09.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * Fill the watch queue and wait for a notification loss.
+ */
+
+#include "tst_test.h"
+#include "lapi/keyctl.h"
+#include "common.h"
+
+static int data_lost;
+
+static void saw_data_loss(struct watch_notification *n, LTP_ATTRIBUTE_UNUSED size_t len, unsigned int wtype)
+{
+ if (wtype != WATCH_TYPE_META)
+ return;
+
+ if (n->subtype == WATCH_META_LOSS_NOTIFICATION)
+ data_lost = 1;
+}
+
+static void run(void)
+{
+ int fd;
+ key_serial_t key;
+
+ fd = wqueue_watch(1, &wqueue_filter);
+
+ key = wqueue_add_key(fd);
+ keyctl(KEYCTL_UPDATE, key, "b", 1);
+ keyctl(KEYCTL_REVOKE, key);
+
+ data_lost = 0;
+ while (!data_lost)
+ wqueue_consumer(fd, saw_data_loss);
+
+ SAFE_CLOSE(fd);
+
+ if (data_lost)
+ tst_res(TPASS, "Meta loss notification received");
+ else
+ tst_res(TFAIL, "Event not recognized");
+}
+
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.34.1
--
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