--- /dev/null
+/*
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+
+#include <common/compat/errno.h>
+#include <bin/lttng-sessiond/trace-kernel.h>
+#include <common/defaults.h>
+
+#include <tap/tap.h>
+
+#define RANDOM_STRING_LEN 11
+
+/* Number of TAP tests in this file */
+#define NUM_TESTS 11
+
+#ifdef HAVE_LIBLTTNG_UST_CTL
+#include <lttng/ust-sigbus.h>
+DEFINE_LTTNG_UST_SIGBUS_STATE();
+#endif
+
+static const char alphanum[] =
+ "0123456789"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz";
+
+static struct ltt_kernel_session *kern;
+static char random_string[RANDOM_STRING_LEN];
+
+/*
+ * Return random string of 10 characters.
+ * Not thread-safe.
+ */
+static char *get_random_string(void)
+{
+ int i;
+
+ for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
+ random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
+ }
+
+ random_string[RANDOM_STRING_LEN - 1] = '\0';
+
+ return random_string;
+}
+
+static void test_create_one_kernel_session(void)
+{
+ kern = trace_kernel_create_session();
+ ok(kern != NULL, "Create kernel session");
+
+ if (!kern) {
+ skip(1, "Kernel session is null");
+ return;
+ }
+ ok(kern->fd == -1 &&
+ kern->metadata_stream_fd == -1 &&
+ kern->consumer_fds_sent == 0 &&
+ kern->channel_count == 0 &&
+ kern->stream_count_global == 0 &&
+ kern->metadata == NULL,
+ "Validate kernel session");
+}
+
+static void test_create_kernel_metadata(void)
+{
+ LTTNG_ASSERT(kern != NULL);
+
+ kern->metadata = trace_kernel_create_metadata();
+ ok(kern->metadata != NULL, "Create kernel metadata");
+
+ ok(kern->metadata->fd == -1 &&
+ kern->metadata->conf != NULL &&
+ kern->metadata->conf->attr.overwrite
+ == DEFAULT_METADATA_OVERWRITE &&
+ kern->metadata->conf->attr.subbuf_size
+ == default_get_metadata_subbuf_size() &&
+ kern->metadata->conf->attr.num_subbuf
+ == DEFAULT_METADATA_SUBBUF_NUM &&
+ kern->metadata->conf->attr.switch_timer_interval
+ == DEFAULT_METADATA_SWITCH_TIMER &&
+ kern->metadata->conf->attr.read_timer_interval
+ == DEFAULT_METADATA_READ_TIMER &&
+ kern->metadata->conf->attr.output
+ == LTTNG_EVENT_MMAP,
+ "Validate kernel session metadata");
+
+ trace_kernel_destroy_metadata(kern->metadata);
+}
+
+static void test_create_kernel_channel(void)
+{
+ struct ltt_kernel_channel *chan;
+ struct lttng_channel attr;
+ struct lttng_channel_extended extended;
+
+ memset(&attr, 0, sizeof(attr));
+ memset(&extended, 0, sizeof(extended));
+ attr.attr.extended.ptr = &extended;
+
+ chan = trace_kernel_create_channel(&attr);
+ ok(chan != NULL, "Create kernel channel");
+
+ if (!chan) {
+ skip(1, "Channel is null");
+ return;
+ }
+
+ ok(chan->fd == -1 &&
+ chan->enabled == 1 &&
+ chan->stream_count == 0 &&
+ chan->channel->attr.overwrite == attr.attr.overwrite,
+ "Validate kernel channel");
+
+ /* Init list in order to avoid sefaults from cds_list_del */
+ CDS_INIT_LIST_HEAD(&chan->list);
+ trace_kernel_destroy_channel(chan);
+}
+
+static void test_create_kernel_event(void)
+{
+ enum lttng_error_code ret;
+ struct ltt_kernel_event *event;
+ struct lttng_event ev;
+
+ memset(&ev, 0, sizeof(ev));
+ ok(!lttng_strncpy(ev.name, get_random_string(),
+ RANDOM_STRING_LEN),
+ "Validate string length");
+ ev.type = LTTNG_EVENT_TRACEPOINT;
+ ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
+
+ ret = trace_kernel_create_event(&ev, NULL, NULL, &event);
+ ok(ret == LTTNG_OK, "Create kernel event");
+
+ if (!event) {
+ skip(1, "Event is null");
+ return;
+ }
+
+ ok(event->fd == -1 &&
+ event->enabled == 1 &&
+ event->event->instrumentation == LTTNG_KERNEL_ABI_TRACEPOINT &&
+ strlen(event->event->name),
+ "Validate kernel event");
+
+ /* Init list in order to avoid sefaults from cds_list_del */
+ CDS_INIT_LIST_HEAD(&event->list);
+ trace_kernel_destroy_event(event);
+}
+
+static void test_create_kernel_stream(void)
+{
+ struct ltt_kernel_stream *stream;
+
+ stream = trace_kernel_create_stream("stream1", 0);
+ ok(stream != NULL, "Create kernel stream");
+
+ if (!stream) {
+ skip(1, "Stream is null");
+ return;
+ }
+
+ ok(stream->fd == -1 &&
+ stream->state == 0,
+ "Validate kernel stream");
+
+ /* Init list in order to avoid sefaults from cds_list_del */
+ CDS_INIT_LIST_HEAD(&stream->list);
+ trace_kernel_destroy_stream(stream);
+}
+
+int main(int argc, char **argv)
+{
+ plan_tests(NUM_TESTS);
+
+ diag("Kernel data structure unit test");
+
+ test_create_one_kernel_session();
+ test_create_kernel_metadata();
+ test_create_kernel_channel();
+ test_create_kernel_event();
+ test_create_kernel_stream();
+
+ return exit_status();
+}