2014-01-30 15:38:04

by Andrei Emeltchenko

[permalink] [raw]
Subject: [RFC] unit/avrcp: First unit test for AVRCP profile

From: Andrei Emeltchenko <[email protected]>

Test TP/MPS/BV-01-C [SetAddressedPlayer – CT] verifies
SetAddressedPlayer command.
---
Makefile.am | 9 ++
unit/test-avrcp.c | 325 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 334 insertions(+)
create mode 100644 unit/test-avrcp.c

diff --git a/Makefile.am b/Makefile.am
index 1a44a9f..67b7167 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -281,6 +281,15 @@ unit_test_avctp_SOURCES = unit/test-avctp.c \
android/avctp.c android/avctp.h
unit_test_avctp_LDADD = @GLIB_LIBS@

+unit_tests += unit/test-avrcp
+
+unit_test_avrcp_SOURCES = unit/test-avrcp.c \
+ src/shared/util.h src/shared/util.c \
+ src/log.h src/log.c \
+ android/avctp.c android/avctp.h \
+ android/avrcp-lib.c android/avrcp-lib.h
+unit_test_avrcp_LDADD = @GLIB_LIBS@ lib/libbluetooth-internal.la
+
unit_tests += unit/test-gdbus-client

unit_test_gdbus_client_SOURCES = unit/test-gdbus-client.c
diff --git a/unit/test-avrcp.c b/unit/test-avrcp.c
new file mode 100644
index 0000000..2030b22
--- /dev/null
+++ b/unit/test-avrcp.c
@@ -0,0 +1,325 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2014 Intel Corporation. All rights reserved.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+
+#include <glib.h>
+
+#include "src/shared/util.h"
+#include "src/log.h"
+#include "lib/bluetooth.h"
+
+#include "android/avctp.h"
+#include "android/avrcp-lib.h"
+
+#define IEEEID_BTSIG 0x001958
+
+struct test_pdu {
+ bool valid;
+ bool fragmented;
+ const uint8_t *data;
+ size_t size;
+};
+
+struct test_data {
+ char *test_name;
+ struct test_pdu *pdu_list;
+};
+
+struct context {
+ GMainLoop *main_loop;
+ struct avrcp_device *dev;
+ guint source;
+ guint process;
+ int fd;
+ unsigned int pdu_offset;
+ const struct test_data *data;
+};
+
+#define data(args...) ((const unsigned char[]) { args })
+
+#define raw_pdu(args...) \
+ { \
+ .valid = true, \
+ .data = data(args), \
+ .size = sizeof(data(args)), \
+ }
+
+#define frg_pdu(args...) \
+ { \
+ .valid = true, \
+ .fragmented = true, \
+ .data = data(args), \
+ .size = sizeof(data(args)), \
+ }
+
+#define define_test(name, function, args...) \
+ do { \
+ const struct test_pdu pdus[] = { \
+ args, { } \
+ }; \
+ static struct test_data data; \
+ data.test_name = g_strdup(name); \
+ data.pdu_list = g_malloc(sizeof(pdus)); \
+ memcpy(data.pdu_list, pdus, sizeof(pdus)); \
+ g_test_add_data_func(name, &data, function); \
+ } while (0)
+
+static void test_debug(const char *str, void *user_data)
+{
+ const char *prefix = user_data;
+
+ g_print("%s%s\n", prefix, str);
+}
+
+static void test_free(gconstpointer user_data)
+{
+ const struct test_data *data = user_data;
+
+ g_free(data->test_name);
+ g_free(data->pdu_list);
+}
+
+static gboolean context_quit(gpointer user_data)
+{
+ struct context *context = user_data;
+
+ if (context->process > 0)
+ g_source_remove(context->process);
+
+ g_main_loop_quit(context->main_loop);
+
+ return FALSE;
+}
+
+static gboolean send_pdu(gpointer user_data)
+{
+ struct context *context = user_data;
+ const struct test_pdu *pdu;
+ ssize_t len;
+
+ pdu = &context->data->pdu_list[context->pdu_offset++];
+
+ len = write(context->fd, pdu->data, pdu->size);
+
+ if (g_test_verbose())
+ util_hexdump('<', pdu->data, len, test_debug, "AVCTP: ");
+
+ g_assert_cmpint(len, ==, pdu->size);
+
+ if (pdu->fragmented)
+ return send_pdu(user_data);
+
+ context->process = 0;
+ return FALSE;
+}
+
+static void context_process(struct context *context)
+{
+ if (!context->data->pdu_list[context->pdu_offset].valid) {
+ context_quit(context);
+ return;
+ }
+
+ context->process = g_idle_add(send_pdu, context);
+}
+
+static gboolean test_handler(GIOChannel *channel, GIOCondition cond,
+ gpointer user_data)
+{
+ struct context *context = user_data;
+ const struct test_pdu *pdu;
+ unsigned char buf[512];
+ ssize_t len;
+ int fd;
+
+ pdu = &context->data->pdu_list[context->pdu_offset++];
+
+ if (cond & (G_IO_NVAL | G_IO_ERR | G_IO_HUP)) {
+ context->source = 0;
+ g_print("%s: cond %x\n", __func__, cond);
+ return FALSE;
+ }
+
+ fd = g_io_channel_unix_get_fd(channel);
+
+ len = read(fd, buf, sizeof(buf));
+
+ g_assert(len > 0);
+
+ if (g_test_verbose())
+ util_hexdump('>', buf, len, test_debug, "AVCTP: ");
+
+ g_assert_cmpint(len, ==, pdu->size);
+
+ g_assert(memcmp(buf, pdu->data, pdu->size) == 0);
+
+ if (!pdu->fragmented)
+ context_process(context);
+
+ return TRUE;
+}
+
+static struct context *create_context(uint16_t version, gconstpointer data)
+{
+ struct context *context = g_new0(struct context, 1);
+ GIOChannel *channel;
+ int err, sv[2];
+ bdaddr_t dst;
+
+ context->main_loop = g_main_loop_new(NULL, FALSE);
+ g_assert(context->main_loop);
+
+ err = socketpair(AF_UNIX, SOCK_SEQPACKET | SOCK_CLOEXEC, 0, sv);
+ g_assert(err == 0);
+
+ context->dev = avrcp_device_new(&dst);
+ context->dev->session = avctp_new(sv[0], 672, 672, version);
+ g_assert(context->dev->session != NULL);
+
+ channel = g_io_channel_unix_new(sv[1]);
+
+ g_io_channel_set_close_on_unref(channel, TRUE);
+ g_io_channel_set_encoding(channel, NULL, NULL);
+ g_io_channel_set_buffered(channel, FALSE);
+
+ context->source = g_io_add_watch(channel,
+ G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
+ test_handler, context);
+ g_assert(context->source > 0);
+
+ g_io_channel_unref(channel);
+
+ context->fd = sv[1];
+ context->data = data;
+
+ return context;
+}
+
+static void execute_context(struct context *context)
+{
+ g_main_loop_run(context->main_loop);
+
+ if (context->source > 0)
+ g_source_remove(context->source);
+
+ avrcp_device_free(context->dev);
+
+ g_main_loop_unref(context->main_loop);
+
+ test_free(context->data);
+ g_free(context);
+}
+
+#define AVRCP_SET_ADDRESSED_PLAYER 0x60
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+
+struct avrcp_header {
+ uint8_t company_id[3];
+ uint8_t pdu_id;
+ uint8_t packet_type:2;
+ uint8_t rsvd:6;
+ uint16_t params_len;
+ uint8_t params[0];
+} __attribute__ ((packed));
+#define AVRCP_HEADER_LENGTH 7
+
+#elif __BYTE_ORDER == __BIG_ENDIAN
+
+struct avrcp_header {
+ uint8_t company_id[3];
+ uint8_t pdu_id;
+ uint8_t rsvd:6;
+ uint8_t packet_type:2;
+ uint16_t params_len;
+ uint8_t params[0];
+} __attribute__ ((packed));
+#define AVRCP_HEADER_LENGTH 7
+
+#else
+#error "Unknown byte order"
+#endif
+
+static void set_company_id(uint8_t cid[3], const uint32_t cid_in)
+{
+ cid[0] = cid_in >> 16;
+ cid[1] = cid_in >> 8;
+ cid[2] = cid_in;
+}
+
+static int avrcp_sent_set_addr_player(struct context *context)
+{
+ uint8_t buf[AVRCP_HEADER_LENGTH + 2];
+ struct avrcp_header *pdu = (void *) buf;
+
+ memset(buf, 0, sizeof(buf));
+
+ set_company_id(pdu->company_id, IEEEID_BTSIG);
+
+ pdu->pdu_id = AVRCP_SET_ADDRESSED_PLAYER;
+ pdu->params[0] = 0xab;
+ pdu->params[1] = 0xcd;
+ pdu->params_len = htons(2);
+
+ return avctp_send_vendordep_req(context->dev->session,
+ AVC_CTYPE_CONTROL, AVC_SUBUNIT_PANEL,
+ buf, sizeof(buf),
+ NULL, NULL);
+}
+
+static void test_client(gconstpointer data)
+{
+ struct context *context = create_context(0x0100, data);
+
+ avrcp_sent_set_addr_player(context);
+
+ execute_context(context);
+}
+
+int main(int argc, char *argv[])
+{
+ g_test_init(&argc, &argv, NULL);
+
+ if (g_test_verbose())
+ __btd_log_init("*", 0);
+
+ /* Media Player Selection Commands and Notifications tests */
+
+ define_test("/TP/MPS/BV-01-C", test_client,
+ raw_pdu(0x00, 0x11, 0x0e, 0x00, 0x48, 0x00,
+ 0x00, 0x19, 0x58, 0x60, 0x00, 0x00,
+ 0x02, 0xab, 0xcd));
+
+ return g_test_run();
+}
--
1.8.3.2