Split in two: agl-identity-service and uds-ble-id-init-service

The binding is splitted in two parts and packeged as widgets.
The two parts are:

 - uds-ble-id-init-service

    This service provides a UDS (User Data Service) over
    BLE. It detects writes to the email of the user to
    initiate the authentication process.

 - agl-identity-service

    This service queries the Forgerock's Edge Controller
    to fill user data and make it available.

The actual code is not fully functionnal.

Signed-off-by: José Bollo <jose.bollo@iot.bzh>

9 files changed, 1089 insertions, 0 deletions

diff --git a/uds-ble-id-init-service/CMakeLists.txt b/uds-ble-id-init-service/CMakeLists.txt
new file mode 100644
index 0000000..14b6d55
--- /dev/null
+++ b/uds-ble-id-init-service/CMakeLists.txt
@@ -0,0 +1,21 @@
+###########################################################################
+# Copyright 2017 IoT.bzh
+#
+# author: Jose Bollo <jose.bollo@iot.bzh>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+###########################################################################
+
+cmake_minimum_required(VERSION 3.6)
+SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/conf.d/cmake/)
+include(${CMAKE_CURRENT_SOURCE_DIR}/conf.d/cmake/config.cmake)
diff --git a/uds-ble-id-init-service/btle-advise.service b/uds-ble-id-init-service/btle-advise.service
new file mode 100644
index 0000000..1a34237
--- /dev/null
+++ b/uds-ble-id-init-service/btle-advise.service
@@ -0,0 +1,8 @@
+[Unit]
+Description=activates advertising of BlueTooth Low-Energy on hci0
+
+[Service]
+Type=oneshot
+ExecStart=/bin/bash -c "rfkill list|sed '/[bB]luetooth/!d;s/:.*//'|xargs -n1 rfkill unblock"
+ExecStart=/bin/bash -c "hcitool dev|tail -n+2|cut -f2|xargs -n1 -IX hciconfig X leadv"
+
diff --git a/uds-ble-id-init-service/btle-advise.timer b/uds-ble-id-init-service/btle-advise.timer
new file mode 100644
index 0000000..b02594c
--- /dev/null
+++ b/uds-ble-id-init-service/btle-advise.timer
@@ -0,0 +1,6 @@
+[Unit]
+Description=Ensure BLE advise is up
+
+[Timer]
+AccuracySec=1min
+OnUnitActiveSec=1min
diff --git a/uds-ble-id-init-service/conf.d/cmake/config.cmake b/uds-ble-id-init-service/conf.d/cmake/config.cmake
new file mode 100644
index 0000000..4ea1d79
--- /dev/null
+++ b/uds-ble-id-init-service/conf.d/cmake/config.cmake
@@ -0,0 +1,201 @@
+###########################################################################
+# Copyright 2015, 2016, 2017 IoT.bzh
+#
+# author: Fulup Ar Foll <fulup@iot.bzh>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+###########################################################################
+
+# Project Info
+# ------------------
+set(PROJECT_NAME uds-ble-id-init)
+set(PROJECT_VERSION "0.1")
+set(PROJECT_PRETTY_NAME "AGL Identitity initiator above BLE's User Data Service")
+set(PROJECT_DESCRIPTION "AGL Identitity initiator above BLE's User Data Service")
+set(PROJECT_URL "https://github.com/iotbzh/aia-binding")
+set(PROJECT_ICON "icon.png")
+set(PROJECT_AUTHOR "José Bollo")
+set(PROJECT_AUTHOR_MAIL "jose.bollo@iot.bzh")
+set(PROJECT_LICENSE "APL2.0")
+set(PROJECT_LANGUAGES,"C")
+
+# Where are stored default templates files from submodule or subtree app-templates in your project tree
+# relative to the root project directory
+set(PROJECT_APP_TEMPLATES_DIR "../conf.d/app-templates")
+
+# Where are stored your external libraries for your project. This is 3rd party library that you don't maintain
+# but used and must be built and linked.
+# set(PROJECT_LIBDIR "libs")
+
+# Where are stored data for your application. Pictures, static resources must be placed in that folder.
+# set(PROJECT_RESOURCES "data")
+
+# Which directories inspect to find CMakeLists.txt target files
+# set(PROJECT_SRC_DIR_PATTERN "*")
+
+# Compilation Mode (DEBUG, RELEASE)
+# ----------------------------------
+
+# Kernel selection if needed. You can choose between a
+# mandatory version to impose a minimal version.
+# Or check Kernel minimal version and just print a Warning
+# about missing features and define a preprocessor variable
+# to be used as preprocessor condition in code to disable
+# incompatibles features. Preprocessor define is named
+# KERNEL_MINIMAL_VERSION_OK.
+#
+# NOTE*** FOR NOW IT CHECKS KERNEL Yocto environment and
+# Yocto SDK Kernel version.
+# -----------------------------------------------
+#set (kernel_mandatory_version 4.8)
+#set (kernel_minimal_version 4.8)
+
+# Compiler selection if needed. Impose a minimal version.
+# -----------------------------------------------
+set (gcc_minimal_version 4.9)
+
+# PKG_CONFIG required packages
+# -----------------------------
+set (PKG_REQUIRED_LIST
+	json-c
+	libsystemd>=222
+	afb-daemon
+)
+
+# Prefix path where will be installed the files
+# Default: /usr/local (need root permission to write in)
+# ------------------------------------------------------
+#set(CMAKE_INSTALL_PREFIX $ENV{HOME}/opt)
+
+# Customize link option
+# -----------------------------
+#list(APPEND link_libraries -an-option)
+
+# Compilation options definition
+# Use CMake generator expressions to specify only for a specific language
+# Values are prefilled with default options that is currently used.
+# Either separate options with ";", or each options must be quoted separately
+# DO NOT PUT ALL OPTION QUOTED AT ONCE , COMPILATION COULD FAILED !
+# ----------------------------------------------------------------------------
+#set(COMPILE_OPTIONS
+# -Wall
+# -Wextra
+# -Wconversion
+# -Wno-unused-parameter
+# -Wno-sign-compare
+# -Wno-sign-conversion
+# -Werror=maybe-uninitialized
+# -Werror=implicit-function-declaration
+# -ffunction-sections
+# -fdata-sections
+# -fPIC
+# CACHE STRING "Compilation flags")
+#set(C_COMPILE_OPTIONS "" CACHE STRING "Compilation flags for C language.")
+#set(CXX_COMPILE_OPTIONS "" CACHE STRING "Compilation flags for C++ language.")
+#set(PROFILING_COMPILE_OPTIONS
+# -g
+# -O0
+# -pg
+# -Wp,-U_FORTIFY_SOURCE
+# CACHE STRING "Compilation flags for PROFILING build type.")
+#set(DEBUG_COMPILE_OPTIONS
+# -g
+# -ggdb
+# -Wp,-U_FORTIFY_SOURCE
+# CACHE STRING "Compilation flags for DEBUG build type.")
+#set(CCOV_COMPILE_OPTIONS
+# -g
+# -O2
+# --coverage
+# CACHE STRING "Compilation flags for CCOV build type.")
+#set(RELEASE_COMPILE_OPTIONS
+# -g
+# -O2
+# CACHE STRING "Compilation flags for RELEASE build type.")
+
+# (BUG!!!) as PKG_CONFIG_PATH does not work [should be an env variable]
+# ---------------------------------------------------------------------
+set(CMAKE_PREFIX_PATH ${CMAKE_INSTALL_PREFIX}/lib64/pkgconfig ${CMAKE_INSTALL_PREFIX}/lib/pkgconfig)
+set(LD_LIBRARY_PATH ${CMAKE_INSTALL_PREFIX}/lib64 ${CMAKE_INSTALL_PREFIX}/lib)
+
+# Optional location for config.xml.in
+# -----------------------------------
+#set(WIDGET_ICON conf.d/wgt/${PROJECT_ICON} CACHE PATH "Path to the widget icon")
+set(WIDGET_CONFIG_TEMPLATE ${CMAKE_CURRENT_SOURCE_DIR}/conf.d/wgt/config.xml.in CACHE PATH "Path to widget config file template (config.xml.in)")
+
+# Mandatory widget Mimetype specification of the main unit
+# --------------------------------------------------------------------------
+# Choose between :
+#- text/html : HTML application,
+#	content.src designates the home page of the application
+#
+#- application/vnd.agl.native : AGL compatible native,
+#	content.src designates the relative path of the binary.
+#
+# - application/vnd.agl.service: AGL service, content.src is not used.
+#
+#- ***application/x-executable***: Native application,
+#	content.src designates the relative path of the binary.
+#	For such application, only security setup is made.
+#
+set(WIDGET_TYPE application/vnd.agl.service)
+
+# Mandatory Widget entry point file of the main unit
+# --------------------------------------------------------------
+# This is the file that will be executed, loaded,
+# at launch time by the application framework.
+#
+set(WIDGET_ENTRY_POINT irrelevant)
+
+# Optional dependencies order
+# ---------------------------
+#set(EXTRA_DEPENDENCIES_ORDER)
+
+# Optional Extra global include path
+# -----------------------------------
+#set(EXTRA_INCLUDE_DIRS)
+
+# Optional extra libraries
+# -------------------------
+#set(EXTRA_LINK_LIBRARIES)
+
+# Optional force binding Linking flag
+# ------------------------------------
+# set(BINDINGS_LINK_FLAG LinkOptions )
+
+# Optional force package prefix generation, like widget
+# -----------------------------------------------------
+# set(PKG_PREFIX DestinationPath)
+
+# Optional Application Framework security token
+# and port use for remote debugging.
+#------------------------------------------------------------
+set(AFB_TOKEN   ""     CACHE PATH "Default binder security token")
+set(AFB_REMPORT "1234" CACHE PATH "Default binder listening port")
+
+# Print a helper message when every thing is finished
+# ----------------------------------------------------
+set(CLOSING_MESSAGE "Typical binding launch: afb-daemon --port=${AFB_REMPORT} --workdir=${CMAKE_BINARY_DIR}/package --ldpaths=lib --roothttp=htdocs  --token=\"${AFB_TOKEN}\" --tracereq=common --verbose")
+set(PACKAGE_MESSAGE "Install widget file using in the target : afm-util install ${PROJECT_NAME}.wgt")
+
+# Optional schema validator about now only XML, LUA and JSON
+# are supported
+#------------------------------------------------------------
+#set(LUA_CHECKER "luac" "-p" CACHE STRING "LUA compiler")
+#set(XML_CHECKER "xmllint" CACHE STRING "XML linter")
+#set(JSON_CHECKER "json_verify" CACHE STRING "JSON linter")
+
+# This include is mandatory and MUST happens at the end
+# of this file, else you expose you to unexpected behavior
+# -----------------------------------------------------------
+include(${PROJECT_APP_TEMPLATES_DIR}/cmake/common.cmake)
diff --git a/uds-ble-id-init-service/conf.d/wgt/config.xml.in b/uds-ble-id-init-service/conf.d/wgt/config.xml.in
new file mode 100644
index 0000000..0ccd9b5
--- /dev/null
+++ b/uds-ble-id-init-service/conf.d/wgt/config.xml.in
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<widget xmlns="http://www.w3.org/ns/widgets" id="@PROJECT_NAME@" version="@PROJECT_VERSION@">
+  <name>@PROJECT_NAME@</name>
+  <icon src="@PROJECT_ICON@"/>
+  <content src="@WIDGET_ENTRY_POINT@" type="@WIDGET_TYPE@"/>
+  <description>@PROJECT_DESCRIPTION@</description>
+  <author>@PROJECT_AUTHOR@ &lt;@PROJECT_AUTHOR_MAIL@&gt;</author>
+  <license>@PROJECT_LICENSE@</license>
+  <feature name="urn:AGL:widget:required-permission">
+    <param name="urn:AGL:permission::public:hidden" value="required" />
+    <param name="urn:AGL:permission::system:run-by-default" value="required" />
+  </feature>
+  <feature name="urn:AGL:widget:provided-api">
+     <param name="windowmanager" value="ws" />
+  </feature>     
+  <feature name="urn:AGL:widget:required-api">
+    <param name="lib/afb-ll-database-binding.so" value="local" />
+  </feature>
+</widget>
diff --git a/uds-ble-id-init-service/src/CMakeLists.txt b/uds-ble-id-init-service/src/CMakeLists.txt
new file mode 100644
index 0000000..97e229a
--- /dev/null
+++ b/uds-ble-id-init-service/src/CMakeLists.txt
@@ -0,0 +1,35 @@
+###########################################################################
+# Copyright 2017 IoT.bzh
+#
+# author: Jose Bollo <jose.bollo@iot.bzh>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+###########################################################################
+
+PROJECT_TARGET_ADD(afb-uds-ble-id-init-binding)
+
+add_library(afb-uds-ble-id-init-binding MODULE
+	uds-ble-id-init-service.c
+	aia-uds-bluez.c
+)
+
+set_target_properties(afb-uds-ble-id-init-binding PROPERTIES
+        LABELS "BINDING"
+	PREFIX ""
+	COMPILE_FLAGS "${libsystemd_CFLAGS}"
+	INCLUDE_DIRECTORIES "${libsystemd_INCLUDE_DIRS}"
+        LINK_FLAGS "${BINDINGS_LINK_FLAG}"
+	LINK_LIBRARIES "${libsystemd_LIBRARIES}"
+        OUTPUT_NAME "${TARGET_NAME}"
+)
+
diff --git a/uds-ble-id-init-service/src/aia-uds-bluez.c b/uds-ble-id-init-service/src/aia-uds-bluez.c
new file mode 100644
index 0000000..35ba61d
--- /dev/null
+++ b/uds-ble-id-init-service/src/aia-uds-bluez.c
@@ -0,0 +1,607 @@
+/*
+ * Copyright (C) 2015, 2016, 2017 "IoT.bzh"
+ * Author: José Bollo <jose.bollo@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define _GNU_SOURCE
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+
+#include <systemd/sd-bus.h>
+
+#include "aia-uds-bluez.h"
+
+#define ROOT	"/uds"
+
+#define ITF_SERVICE		"org.bluez.GattService1"
+#define ITF_CHARACTERISTIC	"org.bluez.GattCharacteristic1"
+#define ITF_DESCRIPTOR		"org.bluez.GattDescriptor1"
+
+/****** internal types **********/
+
+struct item
+{
+	const char *uuid;
+	const char *path;
+	struct item *parent;
+	struct aia_uds_value *value;
+};
+
+/****** internal data **********/
+
+static sd_bus *busini;
+static int activation;
+
+static aia_uds_on_change on_change_callback;
+
+static struct aia_uds uds;
+
+static struct aia_uds uds_descs = 
+{
+	.first_name = { .data = "First name of the user" },
+	.last_name = { .data = "Last name of the user" },
+	.email = { .data = "Email of the user" },
+	.language = { .data = "The Language definition is based on ISO639-1" }
+};
+
+static struct aia_uds_value woutf8 = { .data = "\031\000\047\000\001\000\000", .length = 7 };
+
+static struct item services[1] =
+{
+	{
+		.uuid = "0000181C-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0"
+	}
+};
+
+static struct item characteristics[4] =
+{
+	{
+		.uuid = "00002A8A-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char0",
+		.parent = &services[0],
+		.value = &uds.first_name
+	}, {
+		.uuid = "00002A90-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char1",
+		.parent = &services[0],
+		.value = &uds.last_name
+	}, {
+		.uuid = "00002A87-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char2",
+		.parent = &services[0],
+		.value = &uds.email
+	}, {
+		.uuid = "00002AA2-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char3",
+		.parent = &services[0],
+		.value = &uds.language
+	}
+};
+
+static struct item descriptors[8] =
+{
+	{
+		.uuid = "00002901-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char0/desc0",
+		.parent = &characteristics[0],
+		.value = &uds_descs.first_name
+	}, {
+		.uuid = "00002904-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char0/desc1",
+		.parent = &characteristics[0],
+		.value = &woutf8
+	}, {
+		.uuid = "00002901-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char1/desc0",
+		.parent = &characteristics[1],
+		.value = &uds_descs.last_name
+	}, {
+		.uuid = "00002904-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char1/desc1",
+		.parent = &characteristics[1],
+		.value = &woutf8
+	}, {
+		.uuid = "00002901-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char2/desc0",
+		.parent = &characteristics[2],
+		.value = &uds_descs.email
+	}, {
+		.uuid = "00002904-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char2/desc1",
+		.parent = &characteristics[2],
+		.value = &woutf8
+	}, {
+		.uuid = "00002901-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char3/desc0",
+		.parent = &characteristics[3],
+		.value = &uds_descs.language
+	}, {
+		.uuid = "00002904-0000-1000-8000-00805f9b34fb",
+		.path = ROOT"/service0/char3/desc1",
+		.parent = &characteristics[3],
+		.value = &woutf8
+	}
+};
+
+/****** utility ***********/
+
+static uint16_t get_offset(sd_bus_message *m)
+{
+	uint16_t offset;
+	const char *key;
+
+	if (0 < sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) {
+		while (sd_bus_message_read_basic(m, 's', &key) > 0) {
+			if (strcmp(key,"offset"))
+				sd_bus_message_skip(m, "v");
+			else {
+				if (sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, "q")) {
+					sd_bus_message_read_basic(m, 'q', &offset);
+					sd_bus_message_exit_container(m);
+					return offset;
+				}
+			}
+		}
+		sd_bus_message_exit_container(m);
+	}
+	return 0;
+}
+
+static int message_append_strings(sd_bus_message *m, const char **s)
+{
+	int rc = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "s");
+	while (rc >= 0 && *s)
+		rc = sd_bus_message_append_basic(m, 's', *s++);
+	if (rc >= 0)
+		rc = sd_bus_message_close_container(m);
+	return rc;
+}
+
+/****** common callbacks ***********/
+
+static int get_uuid(
+		struct sd_bus *bus,
+		const char *path,
+		const char *interface,
+		const char *property,
+		sd_bus_message *reply,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	struct item *item = userdata;
+	return sd_bus_message_append_basic(reply, 's', item->uuid);
+}
+
+static int get_parent(
+		struct sd_bus *bus,
+		const char *path,
+		const char *interface,
+		const char *property,
+		sd_bus_message *reply,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	struct item *item = userdata;
+	return sd_bus_message_append_basic(reply, 'o', item->parent->path);
+}
+
+static int get_children(
+		struct sd_bus *bus,
+		const char *path,
+		const char *interface,
+		const char *property,
+		sd_bus_message *reply,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	size_t i, n;
+	int rc;
+
+	rc = sd_bus_message_open_container(reply, SD_BUS_TYPE_ARRAY, "o");
+	n = sizeof characteristics / sizeof *characteristics;
+	i = 0;
+	while (rc >= 0 && i < n) {
+		if (characteristics[i].parent == userdata)
+			rc = sd_bus_message_append_basic(reply, 'o', characteristics[i].path);
+		i++;
+	}
+	n = sizeof descriptors / sizeof *descriptors;
+	i = 0;
+	while (rc >= 0 && i < n) {
+		if (descriptors[i].parent == userdata)
+			rc = sd_bus_message_append_basic(reply, 'o', descriptors[i].path);
+		i++;
+	}
+	if (rc >= 0)
+		rc = sd_bus_message_close_container(reply);
+	return rc;
+}
+
+static int read_value_offset(
+		struct item *item,
+		size_t offset,
+		sd_bus_message *reply)
+{
+	struct aia_uds_value *value = item->value;
+	const char *data = value ? value->data : NULL;
+	size_t size = !value ? 0 : value->length ? value->length : data ? strlen(data) : 0;
+	return sd_bus_message_append_array(reply, 'y', &data[offset], offset > size ? 0 : size - offset);
+}
+
+static int read_value(
+		sd_bus_message *m,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	int rc;
+	sd_bus_message *r;
+
+	rc = sd_bus_message_new_method_return(m, &r);
+	rc = read_value_offset(userdata, get_offset(m), r);
+	rc = sd_bus_send(NULL, r, NULL);
+	return 1;
+}
+
+static int write_value_offset(
+		struct item *item,
+		size_t offset,
+		const char *buffer,
+		size_t length)
+{
+	struct aia_uds_value *value = item->value;
+	const char *data = value ? value->data : NULL;
+	size_t size = !value ? 0 : value->length ? value->length : data ? strlen(data) : 0;
+
+
+	char *next = malloc(offset + length + 1);
+	if (!next)
+		return -ENOMEM;
+	if (offset) {
+		if (size >= offset)
+			memcpy(next, data, offset);
+		else {
+			memcpy(next, data, size);
+			memset(&next[size], 0, offset - size);
+		}
+	}
+	memcpy(&next[offset], buffer, length);
+	next[offset + length] = 0;
+	value->data = next;
+	value->length = offset + length;
+	free((char*)data);
+
+	return 0;
+}
+
+static int write_value(
+		sd_bus_message *m,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	int rc;
+	struct item *item = userdata;
+	const void *data;
+	size_t size;
+	sd_bus_message *r;
+
+	rc = sd_bus_message_read_array(m, 'y', &data, &size);
+	rc = write_value_offset(item, get_offset(m), data, size);
+
+	rc = sd_bus_message_new_method_return(m, &r);
+	rc = sd_bus_send(NULL, r, NULL);
+
+	sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), item->path, ITF_CHARACTERISTIC, "Value", NULL);
+
+	if (on_change_callback) {
+		item->value->changed = 1;
+		on_change_callback(&uds);
+		item->value->changed = 0;
+	}
+
+	return 1;
+}
+
+static int get_value(
+		struct sd_bus *bus,
+		const char *path,
+		const char *interface,
+		const char *property,
+		sd_bus_message *reply,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	return read_value_offset(userdata, 0, reply);
+}
+
+static int get_true(
+		struct sd_bus *bus,
+		const char *path,
+		const char *interface,
+		const char *property,
+		sd_bus_message *reply,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	int v = 1;
+	return sd_bus_message_append_basic(reply, 'b', &v);
+}
+
+static int get_false(
+		struct sd_bus *bus,
+		const char *path,
+		const char *interface,
+		const char *property,
+		sd_bus_message *reply,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	int v = 0;
+	return sd_bus_message_append_basic(reply, 'b', &v);
+}
+
+static int not_supported(
+		sd_bus_message *m,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	return sd_bus_reply_method_errorf(m, "org.bluez.Error.NotSupported", "not supported");
+}
+
+static int not_permitted(
+		sd_bus_message *m,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	return sd_bus_reply_method_errorf(m, "org.bluez.Error.NotPermitted", "not permitted");
+}
+
+static int failed(
+		sd_bus_message *m,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	return sd_bus_reply_method_errorf(m, "org.bluez.Error.Failed", "failed");
+}
+
+/****** service's callbacks ***********/
+
+static int get_srv_includes(
+		struct sd_bus *bus,
+		const char *path,
+		const char *interface,
+		const char *property,
+		sd_bus_message *reply,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	int rc = sd_bus_message_open_container(reply, SD_BUS_TYPE_ARRAY, "o");
+	if (rc >= 0)
+		rc = sd_bus_message_close_container(reply);
+	return rc;
+}
+
+/****** characteristic's callbacks ***********/
+
+static int get_char_flags(
+		struct sd_bus *bus,
+		const char *path,
+		const char *interface,
+		const char *property,
+		sd_bus_message *reply,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	static const char *flags[] = { "read", "write", NULL };
+	return message_append_strings(reply, flags);
+}
+
+/****** descriptor's callbacks ***********/
+
+static int get_desc_flags(
+		struct sd_bus *bus,
+		const char *path,
+		const char *interface,
+		const char *property,
+		sd_bus_message *reply,
+		void *userdata,
+		sd_bus_error *ret_error)
+{
+	static const char *flags[] = { "read", NULL };
+	return message_append_strings(reply, flags);
+}
+
+/****** description ***********/
+
+static struct sd_bus_vtable vservice[] = {
+	SD_BUS_VTABLE_START(0),
+
+	SD_BUS_PROPERTY("UUID", "s", get_uuid, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+	SD_BUS_PROPERTY("Primary", "b", get_true, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+	SD_BUS_PROPERTY("Includes", "ao", get_srv_includes, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+	SD_BUS_PROPERTY("Characteristics", "ao", get_children, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+
+	SD_BUS_VTABLE_END
+};
+
+
+static struct sd_bus_vtable vcharacteristic[] = {
+	SD_BUS_VTABLE_START(0),
+
+	SD_BUS_METHOD("ReadValue", "a{sv}", "ay", read_value, 0),
+	SD_BUS_METHOD("WriteValue", "aya{sv}", "", write_value, 0),
+	SD_BUS_METHOD("StartNotify", "", "", not_supported, 0),
+	SD_BUS_METHOD("StopNotify", "", "", failed, 0),
+
+	SD_BUS_PROPERTY("UUID", "s", get_uuid, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+	SD_BUS_PROPERTY("Service", "o", get_parent, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+	SD_BUS_PROPERTY("Value", "ay", get_value, 0, 0),
+	SD_BUS_PROPERTY("WriteAcquired", "b", get_false, 0, 0),
+	SD_BUS_PROPERTY("NotifyAcquired", "b", get_false, 0, 0),
+	SD_BUS_PROPERTY("Notifying", "b", get_false, 0, 0),
+	SD_BUS_PROPERTY("Flags", "as", get_char_flags, 0, 0),
+	SD_BUS_PROPERTY("Descriptors", "ao", get_children, 0, 0),
+
+	SD_BUS_VTABLE_END
+};
+
+
+static struct sd_bus_vtable vdescriptor[] = {
+	SD_BUS_VTABLE_START(0),
+
+	SD_BUS_METHOD("ReadValue", "a{sv}", "ay", read_value, 0),
+	SD_BUS_METHOD("WriteValue", "aya{sv}", "", not_permitted, 0),
+
+	SD_BUS_PROPERTY("UUID", "s", get_uuid, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+	SD_BUS_PROPERTY("Characteristic", "o", get_parent, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+	SD_BUS_PROPERTY("Value", "ay", get_value, 0, 0),
+	SD_BUS_PROPERTY("Flags", "as", get_desc_flags, 0, 0),
+
+	SD_BUS_VTABLE_END
+};
+
+
+/******** Integration ***************/
+
+aia_uds_on_change aia_uds_set_on_change(aia_uds_on_change callback)
+{
+	aia_uds_on_change prev = on_change_callback;
+	on_change_callback = callback;
+	return prev;
+}
+
+int aia_uds_init(struct sd_bus *bus)
+{
+	int rc;
+
+	if (busini)
+		return 0;
+
+	rc = sd_bus_add_object_manager(bus, NULL, ROOT);
+
+	rc = sd_bus_add_object_vtable(bus, NULL, services[0].path,
+				ITF_SERVICE, vservice, &services[0]);
+
+	rc = sd_bus_add_object_vtable(bus, NULL, characteristics[0].path,
+				ITF_CHARACTERISTIC, vcharacteristic, &characteristics[0]);
+	rc = sd_bus_add_object_vtable(bus, NULL, characteristics[1].path,
+				ITF_CHARACTERISTIC, vcharacteristic, &characteristics[1]);
+	rc = sd_bus_add_object_vtable(bus, NULL, characteristics[2].path,
+				ITF_CHARACTERISTIC, vcharacteristic, &characteristics[2]);
+	rc = sd_bus_add_object_vtable(bus, NULL, characteristics[3].path,
+				ITF_CHARACTERISTIC, vcharacteristic, &characteristics[3]);
+
+	rc = sd_bus_add_object_vtable(bus, NULL, descriptors[0].path,
+				ITF_DESCRIPTOR, vdescriptor, &descriptors[0]);
+	rc = sd_bus_add_object_vtable(bus, NULL, descriptors[1].path,
+				ITF_DESCRIPTOR, vdescriptor, &descriptors[1]);
+	rc = sd_bus_add_object_vtable(bus, NULL, descriptors[2].path,
+				ITF_DESCRIPTOR, vdescriptor, &descriptors[2]);
+	rc = sd_bus_add_object_vtable(bus, NULL, descriptors[3].path,
+				ITF_DESCRIPTOR, vdescriptor, &descriptors[3]);
+	rc = sd_bus_add_object_vtable(bus, NULL, descriptors[4].path,
+				ITF_DESCRIPTOR, vdescriptor, &descriptors[4]);
+	rc = sd_bus_add_object_vtable(bus, NULL, descriptors[5].path,
+				ITF_DESCRIPTOR, vdescriptor, &descriptors[5]);
+	rc = sd_bus_add_object_vtable(bus, NULL, descriptors[6].path,
+				ITF_DESCRIPTOR, vdescriptor, &descriptors[6]);
+	rc = sd_bus_add_object_vtable(bus, NULL, descriptors[7].path,
+				ITF_DESCRIPTOR, vdescriptor, &descriptors[7]);
+
+	busini = sd_bus_ref(bus);
+	return 0;
+}
+
+struct cb {
+	void *callback;
+	void *closure;
+	int onoff;
+};
+
+static struct cb *alloccb(void *callback, void *closure, int onoff)
+{
+	struct cb *cb = malloc(sizeof *cb);
+	if (cb) {
+		cb->callback = callback;
+		cb->closure = closure;
+	}
+	return cb;
+}
+
+static int register_uds_cb(sd_bus_message *m, void *userdata, sd_bus_error *ret_error)
+{
+	struct cb *cb = userdata;
+	void (*callback)(void *closure, int error, int state);
+	int iserr;
+
+	iserr = sd_bus_message_is_method_error(m, NULL);
+	if (!iserr)
+		activation = cb->onoff;
+	callback = cb->callback;
+	if (callback)
+		callback(cb->closure, iserr, activation);
+	free(cb);
+
+	return 1;
+}
+
+static int register_uds(int onoff, void *data)
+{
+	int rc;
+	sd_bus_message *m;
+
+	rc = sd_bus_message_new_method_call(busini, &m, "org.bluez",
+			"/org/bluez/hci0", "org.bluez.GattManager1",
+			onoff ? "RegisterApplication" : "UnregisterApplication" );
+	rc = sd_bus_message_append_basic(m, 'o', ROOT);
+	if (onoff) {
+		rc = sd_bus_message_open_container(m, 'a', "{sv}");
+		rc = sd_bus_message_close_container(m);
+	}
+	rc = sd_bus_call_async(busini, NULL, m, register_uds_cb, data, 5*1000*1000);
+	sd_bus_message_unref(m);
+	return rc;
+}
+
+int aia_uds_activate(int onoff, void (*callback)(void *closure, int error, int state), void *closure)
+{
+	int rc;
+	struct cb *cb;
+
+	if (!busini)
+		return -EINVAL;
+
+	onoff = !!onoff;
+	if (activation == onoff)
+		return 0;
+
+	cb = alloccb(callback, closure, onoff);
+	if (!cb)
+		return -ENOMEM;
+
+	rc = register_uds(onoff, cb);
+	if (rc < 0)
+		free(cb);
+
+	return rc < 0 ? rc : 1;
+}
+
+int aia_uds_advise(int onoff, void (*callback)(void *closure, int error, int state), void *closure)
+{
+	return aia_uds_activate(onoff, callback, closure);
+}
+
diff --git a/uds-ble-id-init-service/src/aia-uds-bluez.h b/uds-ble-id-init-service/src/aia-uds-bluez.h
new file mode 100644
index 0000000..856da4e
--- /dev/null
+++ b/uds-ble-id-init-service/src/aia-uds-bluez.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2015, 2016, 2017 "IoT.bzh"
+ * Author: José Bollo <jose.bollo@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define _GNU_SOURCE
+
+
+#pragma once
+
+struct aia_uds_value
+{
+	const char *data;
+	size_t length;
+	int changed;
+};
+
+struct aia_uds
+{
+	struct aia_uds_value first_name;
+	struct aia_uds_value last_name;
+	struct aia_uds_value email;
+	struct aia_uds_value language;
+};
+
+typedef void (*aia_uds_on_change)(const struct aia_uds *);
+
+extern aia_uds_on_change aia_uds_set_on_change(aia_uds_on_change callback);
+
+extern int aia_uds_activate(int onoff, void (*callback)(void *closure, int error, int state), void *closure);
+
+extern int aia_uds_advise(int onoff, void (*callback)(void *closure, int error, int state), void *closure);
+
+extern int aia_uds_init(struct sd_bus *bus);
+
diff --git a/uds-ble-id-init-service/src/uds-ble-id-init-service.c b/uds-ble-id-init-service/src/uds-ble-id-init-service.c
new file mode 100644
index 0000000..f887963
--- /dev/null
+++ b/uds-ble-id-init-service/src/uds-ble-id-init-service.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2015, 2016, 2017 "IoT.bzh"
+ * Author: José Bollo <jose.bollo@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <json-c/json.h>
+#include <systemd/sd-bus.h>
+
+#define AFB_BINDING_VERSION 2
+#include <afb/afb-binding.h>
+
+#include "aia-uds-bluez.h"
+
+#if !defined(AUTO_START_ADVISE)
+#define AUTO_START_ADVISE 1
+#endif
+
+static int advising;
+
+static struct afb_event event;
+
+static int autoadvise = AUTO_START_ADVISE;
+
+/****************************************************************/
+
+static void on_uds_change(const struct aia_uds *uds)
+{
+	struct json_object *object;
+
+	AFB_INFO("UDS changed"
+		" first-name%s[%.*s]"
+		" last-name%s[%.*s]"
+		" email%s[%.*s]"
+		" language%s[%.*s]",
+		uds->first_name.changed ? "*" : "", (int)uds->first_name.length, uds->first_name.data ?:"",
+		uds->last_name.changed ? "*" : "", (int)uds->last_name.length, uds->last_name.data ?:"",
+		uds->email.changed ? "*" : "", (int)uds->email.length, uds->email.data ?:"",
+		uds->language.changed ? "*" : "", (int)uds->language.length, uds->language.data ?:"");
+
+	if (uds->email.changed) {
+		object = json_object_new_object();
+		json_object_object_add(object, "incoming", json_object_new_string(uds->email.data));
+		afb_event_push(event, object);
+	}
+}
+
+static void start (struct afb_req request)
+{
+	int rc;
+
+	if (!advising) {
+		rc = aia_uds_advise(1, NULL, NULL);
+		if (rc < 0) {
+/*
+TODO: solve the issue
+			afb_req_fail(request, "failed", "start scan failed");
+			return;
+*/
+			AFB_ERROR("Ignoring scan start failed, because probably already in progress");
+		}
+	}
+	advising = advising + 1;
+	afb_req_subscribe(request, event);
+	afb_req_success(request, NULL, NULL);
+}
+
+
+static void stop (struct afb_req request)
+{
+	if (advising) {
+		advising = advising - 1;
+		if (!advising)
+			aia_uds_advise(0, NULL, NULL);
+	}
+	afb_req_success(request, NULL, NULL);
+}
+
+static int init()
+{
+	sd_bus *bus;
+	int rc;
+
+	bus = afb_daemon_get_system_bus();
+	rc = bus ? aia_uds_init(bus) : -ENOTSUP;	
+	if (rc < 0) {
+		errno = -rc;
+		return -1;
+	}
+
+	aia_uds_set_on_change(on_uds_change);
+
+	event = afb_daemon_make_event("event");
+	if (!afb_event_is_valid(event))
+		return -1;
+
+	rc = aia_uds_advise(autoadvise, NULL, NULL);
+	advising = autoadvise && rc >= 0;
+	return rc < 0 ? rc : 0;
+}
+
+
+// NOTE: this sample does not use session to keep test a basic as possible
+//     in real application most APIs should be protected with AFB_SESSION_CHECK
+static const struct afb_verb_v2 verbs[]=
+{
+  {"start"  , start, NULL, "start User Data Service", AFB_SESSION_NONE },
+  {"stop"   , stop , NULL, "stop User Data Service" , AFB_SESSION_NONE },
+  {NULL}
+};
+
+const struct afb_binding_v2 afbBindingV2 =
+{
+	.api = "uds-ble-init-id",
+	.specification = NULL,
+	.info = "AGL Identitity initiator above BLE's User Data Service",
+	.verbs = verbs,
+	.preinit = NULL,
+	.init = init,
+	.onevent = NULL,
+	.noconcurrency = 1
+};
+
+/* vim: set colorcolumn=80: */
+