1 files changed, 156 insertions, 0 deletions

diff --git a/include/libimobiledevice/bt_packet_logger.h b/include/libimobiledevice/bt_packet_logger.h
new file mode 100644
index 0000000..590e5c1
--- /dev/null
+++ b/include/libimobiledevice/bt_packet_logger.h
@@ -0,0 +1,156 @@
+/**
+ * @file libimobiledevice/bt_packet_logger.h
+ * @brief Capture the Bluetooth HCI trace from a device
+ * \internal
+ *
+ * Copyright (c) 2021 Geoffrey Kruse, All Rights Reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef IBT_PACKET_LOGGER_H
+#define IBT_PACKET_LOGGER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <libimobiledevice/libimobiledevice.h>
+#include <libimobiledevice/lockdown.h>
+
+#define BT_PACKETLOGGER_SERVICE_NAME "com.apple.bluetooth.BTPacketLogger"
+#define BT_MAX_PACKET_SIZE 65535
+
+/** Error Codes */
+typedef enum {
+        BT_PACKET_LOGGER_E_SUCCESS         =  0,
+        BT_PACKET_LOGGER_E_INVALID_ARG     = -1,
+        BT_PACKET_LOGGER_E_MUX_ERROR       = -2,
+        BT_PACKET_LOGGER_E_SSL_ERROR       = -3,
+        BT_PACKET_LOGGER_E_NOT_ENOUGH_DATA = -4,
+        BT_PACKET_LOGGER_E_TIMEOUT         = -5,
+        BT_PACKET_LOGGER_E_UNKNOWN_ERROR   = -256
+} bt_packet_logger_error_t;
+
+typedef struct {
+        uint32_t length;
+        uint32_t ts_secs;
+        uint32_t ts_usecs;
+} bt_packet_logger_header_t;
+
+typedef struct bt_packet_logger_client_private bt_packet_logger_client_private;
+typedef bt_packet_logger_client_private *bt_packet_logger_client_t; /**< The client handle. */
+
+/** Receives each hci packet received from the device. */
+typedef void (*bt_packet_logger_receive_cb_t)(uint8_t * data, uint16_t len, void *user_data);
+
+/* Interface */
+
+/**
+ * Connects to the bt_packet_logger service on the specified device.
+ *
+ * @param device The device to connect to.
+ * @param service The service descriptor returned by lockdownd_start_service.
+ * @param client Pointer that will point to a newly allocated
+ *     bt_packet_logger_client_t upon successful return. Must be freed using
+ *     bt_packet_logger_client_free() after use.
+ *
+ * @return BT_PACKET_LOGGER_E_SUCCESS on success, BT_PACKET_LOGGER_E_INVALID_ARG when
+ *     client is NULL, or an BT_PACKET_LOGGER_E_* error code otherwise.
+ */
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_client_new(idevice_t device, lockdownd_service_descriptor_t service, bt_packet_logger_client_t * client);
+
+/**
+ * Starts a new bt_packet_logger service on the specified device and connects to it.
+ *
+ * @param device The device to connect to.
+ * @param client Pointer that will point to a newly allocated
+ *     bt_packet_logger_client_t upon successful return. Must be freed using
+ *     bt_packet_logger_client_free() after use.
+ * @param label The label to use for communication. Usually the program name.
+ *  Pass NULL to disable sending the label in requests to lockdownd.
+ *
+ * @return BT_PACKET_LOGGER_E_SUCCESS on success, or an BT_PACKET_LOGGER_E_* error
+ *     code otherwise.
+ */
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_client_start_service(idevice_t device, bt_packet_logger_client_t * client, const char* label);
+
+/**
+ * Disconnects a bt_packet_logger client from the device and frees up the
+ * bt_packet_logger client data.
+ *
+ * @param client The bt_packet_logger client to disconnect and free.
+ *
+ * @return BT_PACKET_LOGGER_E_SUCCESS on success, BT_PACKET_LOGGER_E_INVALID_ARG when
+ *     client is NULL, or an BT_PACKET_LOGGER_E_* error code otherwise.
+ */
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_client_free(bt_packet_logger_client_t client);
+
+
+/**
+ * Starts capturing the hci interface from the device using a callback.
+ *
+ * Use bt_packet_logger_stop_capture() to stop receiving hci data.
+ *
+ * @param client The bt_packet_logger client to use
+ * @param callback Callback to receive each packet from the hci interface.
+ * @param user_data Custom pointer passed to the callback function.
+ *
+ * @return BT_PACKET_LOGGER_E_SUCCESS on success,
+ *      BT_PACKET_LOGGER_E_INVALID_ARG when one or more parameters are
+ *      invalid or BT_PACKET_LOGGER_E_UNKNOWN_ERROR when an unspecified
+ *      error occurs or an hci capture has already been started.
+ */
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_start_capture(bt_packet_logger_client_t client, bt_packet_logger_receive_cb_t callback, void* user_data);
+
+/**
+ * Stops capturing the hci interface from the device.
+ *
+ * Use bt_packet_logger_start_capture() to start receiving the hci data.
+ *
+ * @param client The bt_packet_logger client to use
+ *
+ * @return BT_PACKET_LOGGER_E_SUCCESS on success,
+ *      BT_PACKET_LOGGER_E_INVALID_ARG when one or more parameters are
+ *      invalid or BT_PACKET_LOGGER_E_UNKNOWN_ERROR when an unspecified
+ *      error occurs or an hci capture has already been started.
+ */
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_stop_capture(bt_packet_logger_client_t client);
+
+/* Receiving */
+
+/**
+ * Receives data using the given bt_packet_logger client with specified timeout.
+ *
+ * @param client The bt_packet_logger client to use for receiving
+ * @param data Buffer that will be filled with the data received
+ * @param size Number of bytes to receive
+ * @param received Number of bytes received (can be NULL to ignore)
+ * @param timeout Maximum time in milliseconds to wait for data.
+ *
+ * @return BT_PACKET_LOGGER_E_SUCCESS on success,
+ *      BT_PACKET_LOGGER_E_INVALID_ARG when one or more parameters are
+ *      invalid, BT_PACKET_LOGGER_E_MUX_ERROR when a communication error
+ *      occurs, or BT_PACKET_LOGGER_E_UNKNOWN_ERROR when an unspecified
+ *      error occurs.
+ */
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_receive_with_timeout(bt_packet_logger_client_t client, char *data, uint32_t size, uint32_t *received, unsigned int timeout);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif