1 files changed, 274 insertions, 0 deletions
diff --git a/libipt/test/src/ptunit-packet_decoder.c b/libipt/test/src/ptunit-packet_decoder.c
new file mode 100644
index 0000000000000..5659f9acec337
--- /dev/null
+++ b/libipt/test/src/ptunit-packet_decoder.c
@@ -0,0 +1,274 @@
+/*
+ * Copyright (c) 2019, Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  * Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "ptunit.h"
+
+#include "pt_packet_decoder.h"
+
+#include "intel-pt.h"
+
+
+/* A test fixture providing a decoder operating on a small buffer. */
+struct test_fixture {
+	/* The packet_decoder. */
+	struct pt_packet_decoder decoder;
+
+	/* The configuration. */
+	struct pt_config config;
+
+	/* The buffer it operates on. */
+	uint8_t buffer[24];
+
+	/* The test fixture initialization and finalization functions. */
+	struct ptunit_result (*init)(struct test_fixture *tfix);
+	struct ptunit_result (*fini)(struct test_fixture *tfix);
+};
+
+static struct ptunit_result tfix_init(struct test_fixture *tfix)
+{
+	struct pt_config *config;
+	uint8_t *buffer;
+	int errcode;
+
+	config = &tfix->config;
+	buffer = tfix->buffer;
+
+	memset(buffer, 0, sizeof(tfix->buffer));
+
+	pt_config_init(config);
+	config->begin = buffer;
+	config->end = buffer + sizeof(tfix->buffer);
+
+	errcode = pt_pkt_decoder_init(&tfix->decoder, config);
+	ptu_int_eq(errcode, 0);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result decoder_init_null(void)
+{
+	struct pt_packet_decoder decoder;
+	struct pt_config config;
+	int errcode;
+
+	errcode = pt_pkt_decoder_init(NULL, &config);
+	ptu_int_eq(errcode, -pte_invalid);
+
+	errcode = pt_pkt_decoder_init(&decoder, NULL);
+	ptu_int_eq(errcode, -pte_invalid);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result decoder_fini_null(void)
+{
+	pt_pkt_decoder_fini(NULL);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result alloc_decoder_null(void)
+{
+	struct pt_packet_decoder *decoder;
+
+	decoder = pt_pkt_alloc_decoder(NULL);
+	ptu_null(decoder);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result free_decoder_null(void)
+{
+	pt_pkt_free_decoder(NULL);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result sync_forward_null(void)
+{
+	int errcode;
+
+	errcode = pt_pkt_sync_forward(NULL);
+	ptu_int_eq(errcode, -pte_invalid);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result sync_backward_null(void)
+{
+	int errcode;
+
+	errcode = pt_pkt_sync_backward(NULL);
+	ptu_int_eq(errcode, -pte_invalid);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result sync_set_null(void)
+{
+	int errcode;
+
+	errcode = pt_pkt_sync_set(NULL, 0ull);
+	ptu_int_eq(errcode, -pte_invalid);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result sync_set_eos(struct test_fixture *tfix)
+{
+	int errcode;
+
+	errcode = pt_pkt_sync_set(&tfix->decoder, sizeof(tfix->buffer) + 1);
+	ptu_int_eq(errcode, -pte_eos);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result get_offset_null(void)
+{
+	struct pt_packet_decoder decoder;
+	uint64_t offset;
+	int errcode;
+
+	errcode = pt_pkt_get_offset(NULL, &offset);
+	ptu_int_eq(errcode, -pte_invalid);
+
+	errcode = pt_pkt_get_offset(&decoder, NULL);
+	ptu_int_eq(errcode, -pte_invalid);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result get_offset_init(struct test_fixture *tfix)
+{
+	uint64_t offset;
+	int errcode;
+
+	errcode = pt_pkt_get_offset(&tfix->decoder, &offset);
+	ptu_int_eq(errcode, -pte_nosync);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result sync_set_get_offset(struct test_fixture *tfix)
+{
+	uint64_t offset;
+	int errcode;
+
+	errcode = pt_pkt_sync_set(&tfix->decoder, 1ull);
+	ptu_int_eq(errcode, 0);
+
+	errcode = pt_pkt_get_offset(&tfix->decoder, &offset);
+	ptu_int_eq(errcode, 0);
+	ptu_uint_eq(offset, 1ull);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result get_sync_offset_null(void)
+{
+	struct pt_packet_decoder decoder;
+	uint64_t offset;
+	int errcode;
+
+	errcode = pt_pkt_get_sync_offset(NULL, &offset);
+	ptu_int_eq(errcode, -pte_invalid);
+
+	errcode = pt_pkt_get_sync_offset(&decoder, NULL);
+	ptu_int_eq(errcode, -pte_invalid);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result get_config_null(void)
+{
+	const struct pt_config *config;
+
+	config = pt_pkt_get_config(NULL);
+	ptu_null(config);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result get_config(struct test_fixture *tfix)
+{
+	const struct pt_config *config;
+
+	config = pt_pkt_get_config(&tfix->decoder);
+	ptu_ptr(config);
+
+	return ptu_passed();
+}
+
+static struct ptunit_result next_null(void)
+{
+	struct pt_packet_decoder decoder;
+	struct pt_packet packet;
+	int errcode;
+
+	errcode = pt_pkt_next(NULL, &packet, sizeof(packet));
+	ptu_int_eq(errcode, -pte_invalid);
+
+	errcode = pt_pkt_next(&decoder, NULL, sizeof(packet));
+	ptu_int_eq(errcode, -pte_invalid);
+
+	return ptu_passed();
+}
+
+int main(int argc, char **argv)
+{
+	struct test_fixture tfix;
+	struct ptunit_suite suite;
+
+	tfix.init = tfix_init;
+	tfix.fini = NULL;
+
+	suite = ptunit_mk_suite(argc, argv);
+
+	ptu_run(suite, decoder_init_null);
+	ptu_run(suite, decoder_fini_null);
+	ptu_run(suite, alloc_decoder_null);
+	ptu_run(suite, free_decoder_null);
+
+	ptu_run(suite, sync_forward_null);
+	ptu_run(suite, sync_backward_null);
+	ptu_run(suite, sync_set_null);
+	ptu_run_f(suite, sync_set_eos, tfix);
+
+	ptu_run(suite, get_offset_null);
+	ptu_run_f(suite, get_offset_init, tfix);
+	ptu_run_f(suite, sync_set_get_offset, tfix);
+	ptu_run(suite, get_sync_offset_null);
+
+	ptu_run(suite, get_config_null);
+	ptu_run_f(suite, get_config, tfix);
+
+	ptu_run(suite, next_null);
+
+	return ptunit_report(&suite);
+}