connman/src/agent-connman.c - nest-learning-thermostat/5.1.6/connman - Git at Google

 /*
  *
  *  Connection Manager
  *
  *  Copyright (C) 2012-2013  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 version 2 as
  *  published by the Free Software Foundation.
  *
  *  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 <errno.h>
 #include <stdlib.h>
 #include <string.h>

 #include <gdbus.h>
 #include <connman/agent.h>
 #include <connman/setting.h>
 #include <connman/service.h>

 #include "connman.h"

 static bool check_reply_has_dict(DBusMessage *reply)
 {
 	const char *signature = DBUS_TYPE_ARRAY_AS_STRING
 		DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 		DBUS_TYPE_STRING_AS_STRING
 		DBUS_TYPE_VARIANT_AS_STRING
 		DBUS_DICT_ENTRY_END_CHAR_AS_STRING;

 	if (dbus_message_has_signature(reply, signature))
 		return true;

 	connman_warn("Reply %s to %s from %s has wrong signature %s",
 			signature,
 			dbus_message_get_interface(reply),
 			dbus_message_get_sender(reply),
 			dbus_message_get_signature(reply));

 	return false;
 }

 struct request_input_reply {
 	struct connman_service *service;
 	struct connman_peer *peer;
 	union {
 		authentication_cb_t service_callback;
 		peer_wps_cb_t peer_callback;
 	};
 	bool wps_requested;
 	void *user_data;
 };

 static void request_input_passphrase_reply(DBusMessage *reply, void *user_data)
 {
 	struct request_input_reply *passphrase_reply = user_data;
 	bool values_received = false;
 	bool wps = false;
 	const char *error = NULL;
 	char *identity = NULL;
 	char *passphrase = NULL;
 	char *wpspin = NULL;
 	char *key;
 	char *name = NULL;
 	int name_len = 0;
 	DBusMessageIter iter, dict;

 	if (!reply) {
 		error = CONNMAN_ERROR_INTERFACE ".OperationAborted";
 		goto done;
 	}

 	if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 		error = dbus_message_get_error_name(reply);
 		goto done;
 	}

 	if (!check_reply_has_dict(reply))
 		goto done;

 	values_received = true;

 	dbus_message_iter_init(reply, &iter);
 	dbus_message_iter_recurse(&iter, &dict);
 	while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
 		DBusMessageIter entry, value;

 		dbus_message_iter_recurse(&dict, &entry);
 		if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
 			break;

 		dbus_message_iter_get_basic(&entry, &key);

 		if (g_str_equal(key, "Identity")) {
 			dbus_message_iter_next(&entry);
 			if (dbus_message_iter_get_arg_type(&entry)
 							!= DBUS_TYPE_VARIANT)
 				break;
 			dbus_message_iter_recurse(&entry, &value);
 			dbus_message_iter_get_basic(&value, &identity);

 		} else if (g_str_equal(key, "Passphrase")) {
 			dbus_message_iter_next(&entry);
 			if (dbus_message_iter_get_arg_type(&entry)
 							!= DBUS_TYPE_VARIANT)
 				break;
 			dbus_message_iter_recurse(&entry, &value);
 			dbus_message_iter_get_basic(&value, &passphrase);

 		} else if (g_str_equal(key, "WPS")) {
 			wps = true;

 			dbus_message_iter_next(&entry);
 			if (dbus_message_iter_get_arg_type(&entry)
 							!= DBUS_TYPE_VARIANT)
 				break;
 			dbus_message_iter_recurse(&entry, &value);
 			dbus_message_iter_get_basic(&value, &wpspin);
 			break;
 		} else if (g_str_equal(key, "Name")) {
 			dbus_message_iter_next(&entry);
 			if (dbus_message_iter_get_arg_type(&entry)
 							!= DBUS_TYPE_VARIANT)
 				break;
 			dbus_message_iter_recurse(&entry, &value);
 			dbus_message_iter_get_basic(&value, &name);
 			name_len = strlen(name);
 		} else if (g_str_equal(key, "SSID")) {
 			dbus_message_iter_next(&entry);
 			if (dbus_message_iter_get_arg_type(&entry)
 							!= DBUS_TYPE_VARIANT)
 				break;
 			dbus_message_iter_recurse(&entry, &value);
 			if (dbus_message_iter_get_arg_type(&value)
 							!= DBUS_TYPE_VARIANT)
 				break;
 			if (dbus_message_iter_get_element_type(&value)
 							!= DBUS_TYPE_VARIANT)
 				break;
 			dbus_message_iter_get_fixed_array(&value, &name,
 							&name_len);
 		}
 		dbus_message_iter_next(&dict);
 	}

 done:
 	passphrase_reply->service_callback(passphrase_reply->service,
 					values_received, name, name_len,
 					identity, passphrase, wps, wpspin,
 					error, passphrase_reply->user_data);

 	g_free(passphrase_reply);
 }

 static void request_input_append_alternates(DBusMessageIter *iter,
 							void *user_data)
 {
 	const char *str = user_data;
 	char **alternates, **alternative;

 	if (!str)
 		return;

 	alternates = g_strsplit(str, ",", 0);
 	if (!alternates)
 		return;

 	for (alternative = alternates; *alternative; alternative++)
 		dbus_message_iter_append_basic(iter, DBUS_TYPE_STRING,
 								alternative);

 	g_strfreev(alternates);
 }

 static void request_input_append_identity(DBusMessageIter *iter,
 							void *user_data)
 {
 	char *str = "string";

 	connman_dbus_dict_append_basic(iter, "Type",
 				DBUS_TYPE_STRING, &str);
 	str = "mandatory";
 	connman_dbus_dict_append_basic(iter, "Requirement",
 				DBUS_TYPE_STRING, &str);
 }

 static void request_input_append_passphrase(DBusMessageIter *iter,
 							void *user_data)
 {
 	struct connman_service *service = user_data;
 	char *value;
 	const char *phase2;

 	switch (__connman_service_get_security(service)) {
 	case CONNMAN_SERVICE_SECURITY_WEP:
 		value = "wep";
 		break;
 	case CONNMAN_SERVICE_SECURITY_PSK:
 		value = "psk";
 		break;
 	case CONNMAN_SERVICE_SECURITY_8021X:
 		phase2 = __connman_service_get_phase2(service);

 		if (phase2 && (
 				g_str_has_suffix(phase2, "GTC") ||
 				g_str_has_suffix(phase2, "OTP")))
 			value = "response";
 		else
 			value = "passphrase";

 		break;
 	default:
 		value = "string";
 		break;
 	}
 	connman_dbus_dict_append_basic(iter, "Type",
 				DBUS_TYPE_STRING, &value);
 	value = "mandatory";
 	connman_dbus_dict_append_basic(iter, "Requirement",
 				DBUS_TYPE_STRING, &value);

 	if (__connman_service_wps_enabled(service)) {
 		connman_dbus_dict_append_array(iter, "Alternates",
 					DBUS_TYPE_STRING,
 					request_input_append_alternates,
 					"WPS");
 	}
 }

 struct request_wps_data {
 	bool peer;
 };

 static void request_input_append_wps(DBusMessageIter *iter, void *user_data)
 {
 	struct request_wps_data *wps = user_data;
 	const char *str = "wpspin";

 	connman_dbus_dict_append_basic(iter, "Type",
 				DBUS_TYPE_STRING, &str);
 	if (wps && wps->peer)
 		str = "mandatory";
 	else
 		str = "alternate";
 	connman_dbus_dict_append_basic(iter, "Requirement",
 				DBUS_TYPE_STRING, &str);
 }

 static void request_input_append_name(DBusMessageIter *iter, void *user_data)
 {
 	const char *str = "string";

 	connman_dbus_dict_append_basic(iter, "Type",
 				DBUS_TYPE_STRING, &str);
 	str = "mandatory";
 	connman_dbus_dict_append_basic(iter, "Requirement",
 				DBUS_TYPE_STRING, &str);
 	connman_dbus_dict_append_array(iter, "Alternates",
 				DBUS_TYPE_STRING,
 				request_input_append_alternates,
 				"SSID");
 }

 static void request_input_append_ssid(DBusMessageIter *iter, void *user_data)
 {
 	const char *str = "ssid";

 	connman_dbus_dict_append_basic(iter, "Type",
 				DBUS_TYPE_STRING, &str);
 	str = "alternate";
 	connman_dbus_dict_append_basic(iter, "Requirement",
 				DBUS_TYPE_STRING, &str);
 }

 static void request_input_append_password(DBusMessageIter *iter,
 							void *user_data)
 {
 	char *str = "passphrase";

 	connman_dbus_dict_append_basic(iter, "Type",
 				DBUS_TYPE_STRING, &str);
 	str = "mandatory";
 	connman_dbus_dict_append_basic(iter, "Requirement",
 				DBUS_TYPE_STRING, &str);
 }

 struct previous_passphrase_data {
 	const char *passphrase;
 	const char *type;
 };

 static void request_input_append_previouspassphrase(DBusMessageIter *iter,
 							void *user_data)
 {
 	struct previous_passphrase_data *data = user_data;
 	const char *requirement = "informational";

 	connman_dbus_dict_append_basic(iter, "Type",
 				DBUS_TYPE_STRING, &data->type);

 	connman_dbus_dict_append_basic(iter, "Requirement",
 				DBUS_TYPE_STRING, &requirement);

 	connman_dbus_dict_append_basic(iter, "Value",
 				DBUS_TYPE_STRING, &data->passphrase);
 }

 static void previous_passphrase_handler(DBusMessageIter *iter,
 					struct connman_service *service)
 {
 	enum connman_service_security security;
 	struct previous_passphrase_data data;
 	struct connman_network *network;

 	network = __connman_service_get_network(service);
 	data.passphrase = connman_network_get_string(network, "WiFi.PinWPS");

 	if (connman_network_get_bool(network, "WiFi.UseWPS") &&
 						data.passphrase) {
 		data.type = "wpspin";
 	} else {
 		data.passphrase = __connman_service_get_passphrase(service);
 		if (!data.passphrase)
 			return;

 		security = __connman_service_get_security(service);
 		switch (security) {
 		case CONNMAN_SERVICE_SECURITY_WEP:
 			data.type = "wep";
 			break;
 		case CONNMAN_SERVICE_SECURITY_PSK:
 			data.type  = "psk";
 			break;
 		/*
 		 * This should never happen: no passphrase is set if security
 		 * is not one of the above. */
 		default:
 			break;
 		}
 	}

 	connman_dbus_dict_append_dict(iter, "PreviousPassphrase",
 			request_input_append_previouspassphrase, &data);
 }

 static void request_input_login_reply(DBusMessage *reply, void *user_data)
 {
 	struct request_input_reply *username_password_reply = user_data;
 	const char *error = NULL;
 	bool values_received = false;
 	char *username = NULL;
 	char *password = NULL;
 	char *key;
 	DBusMessageIter iter, dict;

 	if (!reply) {
 		error = CONNMAN_ERROR_INTERFACE ".OperationAborted";
 		goto done;
 	}

 	if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 		error = dbus_message_get_error_name(reply);
 		goto done;
 	}

 	if (!check_reply_has_dict(reply))
 		goto done;

 	values_received = true;

 	dbus_message_iter_init(reply, &iter);
 	dbus_message_iter_recurse(&iter, &dict);
 	while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
 		DBusMessageIter entry, value;

 		dbus_message_iter_recurse(&dict, &entry);
 		if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
 			break;

 		dbus_message_iter_get_basic(&entry, &key);

 		if (g_str_equal(key, "Username")) {
 			dbus_message_iter_next(&entry);
 			if (dbus_message_iter_get_arg_type(&entry)
 							!= DBUS_TYPE_VARIANT)
 				break;
 			dbus_message_iter_recurse(&entry, &value);
 			dbus_message_iter_get_basic(&value, &username);

 		} else if (g_str_equal(key, "Password")) {
 			dbus_message_iter_next(&entry);
 			if (dbus_message_iter_get_arg_type(&entry) !=
 							DBUS_TYPE_VARIANT)
 				break;
 			dbus_message_iter_recurse(&entry, &value);
 			dbus_message_iter_get_basic(&value, &password);
 		}

 		dbus_message_iter_next(&dict);
 	}

 done:
 	username_password_reply->service_callback(
 			username_password_reply->service, values_received,
 			NULL, 0, username, password, FALSE, NULL, error,
 			username_password_reply->user_data);

 	g_free(username_password_reply);
 }

 int __connman_agent_request_passphrase_input(struct connman_service *service,
 				authentication_cb_t callback,
 				const char *dbus_sender, void *user_data)
 {
 	DBusMessage *message;
 	const char *path, *agent_sender, *agent_path;
 	DBusMessageIter iter;
 	DBusMessageIter dict;
 	struct request_input_reply *passphrase_reply;
 	int err;
 	void *agent;

 	agent = connman_agent_get_info(dbus_sender, &agent_sender,
 							&agent_path);

 	DBG("agent %p service %p path %s", agent, service, agent_path);

 	if (!service || !agent || !agent_path || !callback)
 		return -ESRCH;

 	message = dbus_message_new_method_call(agent_sender, agent_path,
 					CONNMAN_AGENT_INTERFACE,
 					"RequestInput");
 	if (!message)
 		return -ENOMEM;

 	dbus_message_iter_init_append(message, &iter);

 	path = __connman_service_get_path(service);
 	dbus_message_iter_append_basic(&iter,
 				DBUS_TYPE_OBJECT_PATH, &path);

 	connman_dbus_dict_open(&iter, &dict);

 	if (__connman_service_is_hidden(service)) {
 		connman_dbus_dict_append_dict(&dict, "Name",
 					request_input_append_name, NULL);
 		connman_dbus_dict_append_dict(&dict, "SSID",
 					request_input_append_ssid, NULL);
 	}

 	if (__connman_service_get_security(service) ==
 			CONNMAN_SERVICE_SECURITY_8021X) {
 		connman_dbus_dict_append_dict(&dict, "Identity",
 					request_input_append_identity, service);
 	}

 	if (__connman_service_get_security(service) !=
 			CONNMAN_SERVICE_SECURITY_NONE) {
 		connman_dbus_dict_append_dict(&dict, "Passphrase",
 				request_input_append_passphrase, service);

 		previous_passphrase_handler(&dict, service);
 	}

 	if (__connman_service_wps_enabled(service))
 		connman_dbus_dict_append_dict(&dict, "WPS",
 				request_input_append_wps, NULL);

 	connman_dbus_dict_close(&iter, &dict);

 	passphrase_reply = g_try_new0(struct request_input_reply, 1);
 	if (!passphrase_reply) {
 		dbus_message_unref(message);
 		return -ENOMEM;
 	}

 	passphrase_reply->service = service;
 	passphrase_reply->service_callback = callback;
 	passphrase_reply->user_data = user_data;

 	err = connman_agent_queue_message(service, message,
 			connman_timeout_input_request(),
 			request_input_passphrase_reply,
 			passphrase_reply, agent);

 	if (err < 0 && err != -EBUSY) {
 		DBG("error %d sending agent message", err);
 		dbus_message_unref(message);
 		g_free(passphrase_reply);
 		return err;
 	}

 	dbus_message_unref(message);

 	return -EINPROGRESS;
 }

 int __connman_agent_request_login_input(struct connman_service *service,
 				authentication_cb_t callback, void *user_data)
 {
 	DBusMessage *message;
 	const char *path, *agent_sender, *agent_path;
 	DBusMessageIter iter;
 	DBusMessageIter dict;
 	struct request_input_reply *username_password_reply;
 	int err;
 	void *agent;

 	agent = connman_agent_get_info(NULL, &agent_sender, &agent_path);

 	if (!service || !agent || !agent_path || !callback)
 		return -ESRCH;

 	message = dbus_message_new_method_call(agent_sender, agent_path,
 					CONNMAN_AGENT_INTERFACE,
 					"RequestInput");
 	if (!message)
 		return -ENOMEM;

 	dbus_message_iter_init_append(message, &iter);

 	path = __connman_service_get_path(service);
 	dbus_message_iter_append_basic(&iter,
 				DBUS_TYPE_OBJECT_PATH, &path);

 	connman_dbus_dict_open(&iter, &dict);

 	connman_dbus_dict_append_dict(&dict, "Username",
 				request_input_append_identity, service);

 	connman_dbus_dict_append_dict(&dict, "Password",
 				request_input_append_password, service);

 	connman_dbus_dict_close(&iter, &dict);

 	username_password_reply = g_try_new0(struct request_input_reply, 1);
 	if (!username_password_reply) {
 		dbus_message_unref(message);
 		return -ENOMEM;
 	}

 	username_password_reply->service = service;
 	username_password_reply->service_callback = callback;
 	username_password_reply->user_data = user_data;

 	err = connman_agent_queue_message(service, message,
 			connman_timeout_input_request(),
 			request_input_login_reply, username_password_reply,
 			agent);
 	if (err < 0 && err != -EBUSY) {
 		DBG("error %d sending agent request", err);
 		dbus_message_unref(message);
 		g_free(username_password_reply);
 		return err;
 	}

 	dbus_message_unref(message);

 	return -EINPROGRESS;
 }

 struct request_browser_reply_data {
 	struct connman_service *service;
 	browser_authentication_cb_t callback;
 	void *user_data;
 };

 static void request_browser_reply(DBusMessage *reply, void *user_data)
 {
 	struct request_browser_reply_data *browser_reply_data = user_data;
 	bool result = false;
 	const char *error = NULL;

 	if (!reply) {
 		error = CONNMAN_ERROR_INTERFACE ".OperationAborted";
 		goto done;
 	}

 	if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 		error = dbus_message_get_error_name(reply);
 		goto done;
 	}

 	result = true;

 done:
 	browser_reply_data->callback(browser_reply_data->service, result,
 					error, browser_reply_data->user_data);
 	g_free(browser_reply_data);
 }

 int __connman_agent_request_browser(struct connman_service *service,
 				browser_authentication_cb_t callback,
 				const char *url, void *user_data)
 {
 	struct request_browser_reply_data *browser_reply_data;
 	DBusMessage *message;
 	DBusMessageIter iter;
 	const char *path, *agent_sender, *agent_path;
 	int err;
 	void *agent;

 	agent = connman_agent_get_info(NULL, &agent_sender, &agent_path);

 	if (!service || !agent || !agent_path || !callback)
 		return -ESRCH;

 	if (!url)
 		url = "";

 	message = dbus_message_new_method_call(agent_sender, agent_path,
 					CONNMAN_AGENT_INTERFACE,
 					"RequestBrowser");
 	if (!message)
 		return -ENOMEM;

 	dbus_message_iter_init_append(message, &iter);

 	path = __connman_service_get_path(service);
 	dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH, &path);

 	dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &url);

 	browser_reply_data = g_try_new0(struct request_browser_reply_data, 1);
 	if (!browser_reply_data) {
 		dbus_message_unref(message);
 		return -ENOMEM;
 	}

 	browser_reply_data->service = service;
 	browser_reply_data->callback = callback;
 	browser_reply_data->user_data = user_data;

 	err = connman_agent_queue_message(service, message,
 				connman_timeout_browser_launch(),
 				request_browser_reply, browser_reply_data,
 				agent);

 	if (err < 0 && err != -EBUSY) {
 		DBG("error %d sending browser request", err);
 		dbus_message_unref(message);
 		g_free(browser_reply_data);
 		return err;
 	}

 	dbus_message_unref(message);

 	return -EINPROGRESS;
 }

 int __connman_agent_report_peer_error(struct connman_peer *peer,
 					const char *path, const char *error,
 					report_error_cb_t callback,
 					const char *dbus_sender,
 					void *user_data)
 {
 	return connman_agent_report_error_full(peer, path, "ReportPeerError",
 				error, callback, dbus_sender, user_data);
 }

 static void request_peer_authorization_reply(DBusMessage *reply,
 							void *user_data)
 {
 	struct request_input_reply *auth_reply = user_data;
 	DBusMessageIter iter, dict;
 	const char *error = NULL;
 	bool choice_done = false;
 	char *wpspin = NULL;
 	char *key;

 	if (!reply) {
 		error = CONNMAN_ERROR_INTERFACE ".OperationAborted";
 		goto done;
 	}

 	if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 		error = dbus_message_get_error_name(reply);
 		goto done;
 	}

 	if (!check_reply_has_dict(reply))
 		goto done;

 	dbus_message_iter_init(reply, &iter);
 	dbus_message_iter_recurse(&iter, &dict);
 	while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
 		DBusMessageIter entry, value;

 		dbus_message_iter_recurse(&dict, &entry);
 		if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
 			break;

 		dbus_message_iter_get_basic(&entry, &key);

 		if (g_str_equal(key, "WPS")) {
 			choice_done = true;

 			dbus_message_iter_next(&entry);
 			if (dbus_message_iter_get_arg_type(&entry)
 							!= DBUS_TYPE_VARIANT)
 				break;
 			dbus_message_iter_recurse(&entry, &value);
 			dbus_message_iter_get_basic(&value, &wpspin);
 			break;
 		}
 		dbus_message_iter_next(&dict);
 	}

 	if (!auth_reply->wps_requested)
 		choice_done = true;

 done:
 	auth_reply->peer_callback(auth_reply->peer, choice_done, wpspin,
 						error, auth_reply->user_data);

 	g_free(auth_reply);
 }

 int __connman_agent_request_peer_authorization(struct connman_peer *peer,
 						peer_wps_cb_t callback,
 						bool wps_requested,
 						const char *dbus_sender,
 						void *user_data)
 {
 	struct request_wps_data wps = { .peer = true };
 	const char *path, *agent_sender, *agent_path;
 	struct request_input_reply *auth_reply;
 	DBusMessageIter dict, iter;
 	DBusMessage *message;
 	void *agent;
 	int err;

 	agent = connman_agent_get_info(dbus_sender, &agent_sender,
 							&agent_path);
 	DBG("agent %p peer %p path %s", agent, peer, agent_path);

 	if (!peer || !agent || !agent_path || !callback)
 		return -ESRCH;

 	message = dbus_message_new_method_call(agent_sender, agent_path,
 			CONNMAN_AGENT_INTERFACE, "RequestPeerAuthorization");
 	if (!message)
 		return -ENOMEM;

 	dbus_message_iter_init_append(message, &iter);

 	path = __connman_peer_get_path(peer);
 	dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH, &path);

 	connman_dbus_dict_open(&iter, &dict);

 	if (wps_requested)
 		connman_dbus_dict_append_dict(&dict, "WPS",
 					request_input_append_wps, &wps);

 	connman_dbus_dict_close(&iter, &dict);

 	auth_reply = g_try_new0(struct request_input_reply, 1);
 	if (!auth_reply) {
 		dbus_message_unref(message);
 		return -ENOMEM;
 	}

 	auth_reply->peer = peer;
 	auth_reply->peer_callback = callback;
 	auth_reply->wps_requested = wps_requested;
 	auth_reply->user_data = user_data;

 	err = connman_agent_queue_message(peer, message,
 					connman_timeout_input_request(),
 					request_peer_authorization_reply,
 					auth_reply, agent);
 	if (err < 0 && err != -EBUSY) {
 		DBG("error %d sending agent message", err);
 		dbus_message_unref(message);
 		g_free(auth_reply);
 		return err;
 	}

 	dbus_message_unref(message);

 	return -EINPROGRESS;
 }
	/*
	*
	* Connection Manager
	*
	* Copyright (C) 2012-2013 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 version 2 as
	* published by the Free Software Foundation.
	*
	* 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 <errno.h>
	#include <stdlib.h>
	#include <string.h>

	#include <gdbus.h>
	#include <connman/agent.h>
	#include <connman/setting.h>
	#include <connman/service.h>

	#include "connman.h"

	static bool check_reply_has_dict(DBusMessage *reply)
	{
	const char *signature = DBUS_TYPE_ARRAY_AS_STRING
	DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
	DBUS_TYPE_STRING_AS_STRING
	DBUS_TYPE_VARIANT_AS_STRING
	DBUS_DICT_ENTRY_END_CHAR_AS_STRING;

	if (dbus_message_has_signature(reply, signature))
	return true;

	connman_warn("Reply %s to %s from %s has wrong signature %s",
	signature,
	dbus_message_get_interface(reply),
	dbus_message_get_sender(reply),
	dbus_message_get_signature(reply));

	return false;
	}

	struct request_input_reply {
	struct connman_service *service;
	struct connman_peer *peer;
	union {
	authentication_cb_t service_callback;
	peer_wps_cb_t peer_callback;
	};
	bool wps_requested;
	void *user_data;
	};

	static void request_input_passphrase_reply(DBusMessage reply, void user_data)
	{
	struct request_input_reply *passphrase_reply = user_data;
	bool values_received = false;
	bool wps = false;
	const char *error = NULL;
	char *identity = NULL;
	char *passphrase = NULL;
	char *wpspin = NULL;
	char *key;
	char *name = NULL;
	int name_len = 0;
	DBusMessageIter iter, dict;

	if (!reply) {
	error = CONNMAN_ERROR_INTERFACE ".OperationAborted";
	goto done;
	}

	if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
	error = dbus_message_get_error_name(reply);
	goto done;
	}

	if (!check_reply_has_dict(reply))
	goto done;

	values_received = true;

	dbus_message_iter_init(reply, &iter);
	dbus_message_iter_recurse(&iter, &dict);
	while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
	DBusMessageIter entry, value;

	dbus_message_iter_recurse(&dict, &entry);
	if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
	break;

	dbus_message_iter_get_basic(&entry, &key);

	if (g_str_equal(key, "Identity")) {
	dbus_message_iter_next(&entry);
	if (dbus_message_iter_get_arg_type(&entry)
	!= DBUS_TYPE_VARIANT)
	break;
	dbus_message_iter_recurse(&entry, &value);
	dbus_message_iter_get_basic(&value, &identity);

	} else if (g_str_equal(key, "Passphrase")) {
	dbus_message_iter_next(&entry);
	if (dbus_message_iter_get_arg_type(&entry)
	!= DBUS_TYPE_VARIANT)
	break;
	dbus_message_iter_recurse(&entry, &value);
	dbus_message_iter_get_basic(&value, &passphrase);

	} else if (g_str_equal(key, "WPS")) {
	wps = true;

	dbus_message_iter_next(&entry);
	if (dbus_message_iter_get_arg_type(&entry)
	!= DBUS_TYPE_VARIANT)
	break;
	dbus_message_iter_recurse(&entry, &value);
	dbus_message_iter_get_basic(&value, &wpspin);
	break;
	} else if (g_str_equal(key, "Name")) {
	dbus_message_iter_next(&entry);
	if (dbus_message_iter_get_arg_type(&entry)
	!= DBUS_TYPE_VARIANT)
	break;
	dbus_message_iter_recurse(&entry, &value);
	dbus_message_iter_get_basic(&value, &name);
	name_len = strlen(name);
	} else if (g_str_equal(key, "SSID")) {
	dbus_message_iter_next(&entry);
	if (dbus_message_iter_get_arg_type(&entry)
	!= DBUS_TYPE_VARIANT)
	break;
	dbus_message_iter_recurse(&entry, &value);
	if (dbus_message_iter_get_arg_type(&value)
	!= DBUS_TYPE_VARIANT)
	break;
	if (dbus_message_iter_get_element_type(&value)
	!= DBUS_TYPE_VARIANT)
	break;
	dbus_message_iter_get_fixed_array(&value, &name,
	&name_len);
	}
	dbus_message_iter_next(&dict);
	}

	done:
	passphrase_reply->service_callback(passphrase_reply->service,
	values_received, name, name_len,
	identity, passphrase, wps, wpspin,
	error, passphrase_reply->user_data);

	g_free(passphrase_reply);
	}

	static void request_input_append_alternates(DBusMessageIter *iter,
	void *user_data)
	{
	const char *str = user_data;
	char alternates, alternative;

	if (!str)
	return;

	alternates = g_strsplit(str, ",", 0);
	if (!alternates)
	return;

	for (alternative = alternates; *alternative; alternative++)
	dbus_message_iter_append_basic(iter, DBUS_TYPE_STRING,
	alternative);

	g_strfreev(alternates);
	}

	static void request_input_append_identity(DBusMessageIter *iter,
	void *user_data)
	{
	char *str = "string";

	connman_dbus_dict_append_basic(iter, "Type",
	DBUS_TYPE_STRING, &str);
	str = "mandatory";
	connman_dbus_dict_append_basic(iter, "Requirement",
	DBUS_TYPE_STRING, &str);
	}

	static void request_input_append_passphrase(DBusMessageIter *iter,
	void *user_data)
	{
	struct connman_service *service = user_data;
	char *value;
	const char *phase2;

	switch (__connman_service_get_security(service)) {
	case CONNMAN_SERVICE_SECURITY_WEP:
	value = "wep";
	break;
	case CONNMAN_SERVICE_SECURITY_PSK:
	value = "psk";
	break;
	case CONNMAN_SERVICE_SECURITY_8021X:
	phase2 = __connman_service_get_phase2(service);

	if (phase2 && (
	g_str_has_suffix(phase2, "GTC") \|\|
	g_str_has_suffix(phase2, "OTP")))
	value = "response";
	else
	value = "passphrase";

	break;
	default:
	value = "string";
	break;
	}
	connman_dbus_dict_append_basic(iter, "Type",
	DBUS_TYPE_STRING, &value);
	value = "mandatory";
	connman_dbus_dict_append_basic(iter, "Requirement",
	DBUS_TYPE_STRING, &value);

	if (__connman_service_wps_enabled(service)) {
	connman_dbus_dict_append_array(iter, "Alternates",
	DBUS_TYPE_STRING,
	request_input_append_alternates,
	"WPS");
	}
	}

	struct request_wps_data {
	bool peer;
	};

	static void request_input_append_wps(DBusMessageIter iter, void user_data)
	{
	struct request_wps_data *wps = user_data;
	const char *str = "wpspin";

	connman_dbus_dict_append_basic(iter, "Type",
	DBUS_TYPE_STRING, &str);
	if (wps && wps->peer)
	str = "mandatory";
	else
	str = "alternate";
	connman_dbus_dict_append_basic(iter, "Requirement",
	DBUS_TYPE_STRING, &str);
	}

	static void request_input_append_name(DBusMessageIter iter, void user_data)
	{
	const char *str = "string";

	connman_dbus_dict_append_basic(iter, "Type",
	DBUS_TYPE_STRING, &str);
	str = "mandatory";
	connman_dbus_dict_append_basic(iter, "Requirement",
	DBUS_TYPE_STRING, &str);
	connman_dbus_dict_append_array(iter, "Alternates",
	DBUS_TYPE_STRING,
	request_input_append_alternates,
	"SSID");
	}

	static void request_input_append_ssid(DBusMessageIter iter, void user_data)
	{
	const char *str = "ssid";

	connman_dbus_dict_append_basic(iter, "Type",
	DBUS_TYPE_STRING, &str);
	str = "alternate";
	connman_dbus_dict_append_basic(iter, "Requirement",
	DBUS_TYPE_STRING, &str);
	}

	static void request_input_append_password(DBusMessageIter *iter,
	void *user_data)
	{
	char *str = "passphrase";

	connman_dbus_dict_append_basic(iter, "Type",
	DBUS_TYPE_STRING, &str);
	str = "mandatory";
	connman_dbus_dict_append_basic(iter, "Requirement",
	DBUS_TYPE_STRING, &str);
	}

	struct previous_passphrase_data {
	const char *passphrase;
	const char *type;
	};

	static void request_input_append_previouspassphrase(DBusMessageIter *iter,
	void *user_data)
	{
	struct previous_passphrase_data *data = user_data;
	const char *requirement = "informational";

	connman_dbus_dict_append_basic(iter, "Type",
	DBUS_TYPE_STRING, &data->type);

	connman_dbus_dict_append_basic(iter, "Requirement",
	DBUS_TYPE_STRING, &requirement);

	connman_dbus_dict_append_basic(iter, "Value",
	DBUS_TYPE_STRING, &data->passphrase);
	}

	static void previous_passphrase_handler(DBusMessageIter *iter,
	struct connman_service *service)
	{
	enum connman_service_security security;
	struct previous_passphrase_data data;
	struct connman_network *network;

	network = __connman_service_get_network(service);
	data.passphrase = connman_network_get_string(network, "WiFi.PinWPS");

	if (connman_network_get_bool(network, "WiFi.UseWPS") &&
	data.passphrase) {
	data.type = "wpspin";
	} else {
	data.passphrase = __connman_service_get_passphrase(service);
	if (!data.passphrase)
	return;

	security = __connman_service_get_security(service);
	switch (security) {
	case CONNMAN_SERVICE_SECURITY_WEP:
	data.type = "wep";
	break;
	case CONNMAN_SERVICE_SECURITY_PSK:
	data.type = "psk";
	break;
	/*
	* This should never happen: no passphrase is set if security
	* is not one of the above. */
	default:
	break;
	}
	}

	connman_dbus_dict_append_dict(iter, "PreviousPassphrase",
	request_input_append_previouspassphrase, &data);
	}

	static void request_input_login_reply(DBusMessage reply, void user_data)
	{
	struct request_input_reply *username_password_reply = user_data;
	const char *error = NULL;
	bool values_received = false;
	char *username = NULL;
	char *password = NULL;
	char *key;
	DBusMessageIter iter, dict;

	if (!reply) {
	error = CONNMAN_ERROR_INTERFACE ".OperationAborted";
	goto done;
	}

	if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
	error = dbus_message_get_error_name(reply);
	goto done;
	}

	if (!check_reply_has_dict(reply))
	goto done;

	values_received = true;

	dbus_message_iter_init(reply, &iter);
	dbus_message_iter_recurse(&iter, &dict);
	while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
	DBusMessageIter entry, value;

	dbus_message_iter_recurse(&dict, &entry);
	if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
	break;

	dbus_message_iter_get_basic(&entry, &key);

	if (g_str_equal(key, "Username")) {
	dbus_message_iter_next(&entry);
	if (dbus_message_iter_get_arg_type(&entry)
	!= DBUS_TYPE_VARIANT)
	break;
	dbus_message_iter_recurse(&entry, &value);
	dbus_message_iter_get_basic(&value, &username);

	} else if (g_str_equal(key, "Password")) {
	dbus_message_iter_next(&entry);
	if (dbus_message_iter_get_arg_type(&entry) !=
	DBUS_TYPE_VARIANT)
	break;
	dbus_message_iter_recurse(&entry, &value);
	dbus_message_iter_get_basic(&value, &password);
	}

	dbus_message_iter_next(&dict);
	}

	done:
	username_password_reply->service_callback(
	username_password_reply->service, values_received,
	NULL, 0, username, password, FALSE, NULL, error,
	username_password_reply->user_data);

	g_free(username_password_reply);
	}

	int __connman_agent_request_passphrase_input(struct connman_service *service,
	authentication_cb_t callback,
	const char dbus_sender, void user_data)
	{
	DBusMessage *message;
	const char path, agent_sender, *agent_path;
	DBusMessageIter iter;
	DBusMessageIter dict;
	struct request_input_reply *passphrase_reply;
	int err;
	void *agent;

	agent = connman_agent_get_info(dbus_sender, &agent_sender,
	&agent_path);

	DBG("agent %p service %p path %s", agent, service, agent_path);

	if (!service \|\| !agent \|\| !agent_path \|\| !callback)
	return -ESRCH;

	message = dbus_message_new_method_call(agent_sender, agent_path,
	CONNMAN_AGENT_INTERFACE,
	"RequestInput");
	if (!message)
	return -ENOMEM;

	dbus_message_iter_init_append(message, &iter);

	path = __connman_service_get_path(service);
	dbus_message_iter_append_basic(&iter,
	DBUS_TYPE_OBJECT_PATH, &path);

	connman_dbus_dict_open(&iter, &dict);

	if (__connman_service_is_hidden(service)) {
	connman_dbus_dict_append_dict(&dict, "Name",
	request_input_append_name, NULL);
	connman_dbus_dict_append_dict(&dict, "SSID",
	request_input_append_ssid, NULL);
	}

	if (__connman_service_get_security(service) ==
	CONNMAN_SERVICE_SECURITY_8021X) {
	connman_dbus_dict_append_dict(&dict, "Identity",
	request_input_append_identity, service);
	}

	if (__connman_service_get_security(service) !=
	CONNMAN_SERVICE_SECURITY_NONE) {
	connman_dbus_dict_append_dict(&dict, "Passphrase",
	request_input_append_passphrase, service);

	previous_passphrase_handler(&dict, service);
	}

	if (__connman_service_wps_enabled(service))
	connman_dbus_dict_append_dict(&dict, "WPS",
	request_input_append_wps, NULL);

	connman_dbus_dict_close(&iter, &dict);

	passphrase_reply = g_try_new0(struct request_input_reply, 1);
	if (!passphrase_reply) {
	dbus_message_unref(message);
	return -ENOMEM;
	}

	passphrase_reply->service = service;
	passphrase_reply->service_callback = callback;
	passphrase_reply->user_data = user_data;

	err = connman_agent_queue_message(service, message,
	connman_timeout_input_request(),
	request_input_passphrase_reply,
	passphrase_reply, agent);

	if (err < 0 && err != -EBUSY) {
	DBG("error %d sending agent message", err);
	dbus_message_unref(message);
	g_free(passphrase_reply);
	return err;
	}

	dbus_message_unref(message);

	return -EINPROGRESS;
	}

	int __connman_agent_request_login_input(struct connman_service *service,
	authentication_cb_t callback, void *user_data)
	{
	DBusMessage *message;
	const char path, agent_sender, *agent_path;
	DBusMessageIter iter;
	DBusMessageIter dict;
	struct request_input_reply *username_password_reply;
	int err;
	void *agent;

	agent = connman_agent_get_info(NULL, &agent_sender, &agent_path);

	if (!service \|\| !agent \|\| !agent_path \|\| !callback)
	return -ESRCH;

	message = dbus_message_new_method_call(agent_sender, agent_path,
	CONNMAN_AGENT_INTERFACE,
	"RequestInput");
	if (!message)
	return -ENOMEM;

	dbus_message_iter_init_append(message, &iter);

	path = __connman_service_get_path(service);
	dbus_message_iter_append_basic(&iter,
	DBUS_TYPE_OBJECT_PATH, &path);

	connman_dbus_dict_open(&iter, &dict);

	connman_dbus_dict_append_dict(&dict, "Username",
	request_input_append_identity, service);

	connman_dbus_dict_append_dict(&dict, "Password",
	request_input_append_password, service);

	connman_dbus_dict_close(&iter, &dict);

	username_password_reply = g_try_new0(struct request_input_reply, 1);
	if (!username_password_reply) {
	dbus_message_unref(message);
	return -ENOMEM;
	}

	username_password_reply->service = service;
	username_password_reply->service_callback = callback;
	username_password_reply->user_data = user_data;

	err = connman_agent_queue_message(service, message,
	connman_timeout_input_request(),
	request_input_login_reply, username_password_reply,
	agent);
	if (err < 0 && err != -EBUSY) {
	DBG("error %d sending agent request", err);
	dbus_message_unref(message);
	g_free(username_password_reply);
	return err;
	}

	dbus_message_unref(message);

	return -EINPROGRESS;
	}

	struct request_browser_reply_data {
	struct connman_service *service;
	browser_authentication_cb_t callback;
	void *user_data;
	};

	static void request_browser_reply(DBusMessage reply, void user_data)
	{
	struct request_browser_reply_data *browser_reply_data = user_data;
	bool result = false;
	const char *error = NULL;

	if (!reply) {
	error = CONNMAN_ERROR_INTERFACE ".OperationAborted";
	goto done;
	}

	if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
	error = dbus_message_get_error_name(reply);
	goto done;
	}

	result = true;

	done:
	browser_reply_data->callback(browser_reply_data->service, result,
	error, browser_reply_data->user_data);
	g_free(browser_reply_data);
	}

	int __connman_agent_request_browser(struct connman_service *service,
	browser_authentication_cb_t callback,
	const char url, void user_data)
	{
	struct request_browser_reply_data *browser_reply_data;
	DBusMessage *message;
	DBusMessageIter iter;
	const char path, agent_sender, *agent_path;
	int err;
	void *agent;

	agent = connman_agent_get_info(NULL, &agent_sender, &agent_path);

	if (!service \|\| !agent \|\| !agent_path \|\| !callback)
	return -ESRCH;

	if (!url)
	url = "";

	message = dbus_message_new_method_call(agent_sender, agent_path,
	CONNMAN_AGENT_INTERFACE,
	"RequestBrowser");
	if (!message)
	return -ENOMEM;

	dbus_message_iter_init_append(message, &iter);

	path = __connman_service_get_path(service);
	dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH, &path);

	dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &url);

	browser_reply_data = g_try_new0(struct request_browser_reply_data, 1);
	if (!browser_reply_data) {
	dbus_message_unref(message);
	return -ENOMEM;
	}

	browser_reply_data->service = service;
	browser_reply_data->callback = callback;
	browser_reply_data->user_data = user_data;

	err = connman_agent_queue_message(service, message,
	connman_timeout_browser_launch(),
	request_browser_reply, browser_reply_data,
	agent);

	if (err < 0 && err != -EBUSY) {
	DBG("error %d sending browser request", err);
	dbus_message_unref(message);
	g_free(browser_reply_data);
	return err;
	}

	dbus_message_unref(message);

	return -EINPROGRESS;
	}

	int __connman_agent_report_peer_error(struct connman_peer *peer,
	const char path, const char error,
	report_error_cb_t callback,
	const char *dbus_sender,
	void *user_data)
	{
	return connman_agent_report_error_full(peer, path, "ReportPeerError",
	error, callback, dbus_sender, user_data);
	}

	static void request_peer_authorization_reply(DBusMessage *reply,
	void *user_data)
	{
	struct request_input_reply *auth_reply = user_data;
	DBusMessageIter iter, dict;
	const char *error = NULL;
	bool choice_done = false;
	char *wpspin = NULL;
	char *key;

	if (!reply) {
	error = CONNMAN_ERROR_INTERFACE ".OperationAborted";
	goto done;
	}

	if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
	error = dbus_message_get_error_name(reply);
	goto done;
	}

	if (!check_reply_has_dict(reply))
	goto done;

	dbus_message_iter_init(reply, &iter);
	dbus_message_iter_recurse(&iter, &dict);
	while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
	DBusMessageIter entry, value;

	dbus_message_iter_recurse(&dict, &entry);
	if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
	break;

	dbus_message_iter_get_basic(&entry, &key);

	if (g_str_equal(key, "WPS")) {
	choice_done = true;

	dbus_message_iter_next(&entry);
	if (dbus_message_iter_get_arg_type(&entry)
	!= DBUS_TYPE_VARIANT)
	break;
	dbus_message_iter_recurse(&entry, &value);
	dbus_message_iter_get_basic(&value, &wpspin);
	break;
	}
	dbus_message_iter_next(&dict);
	}

	if (!auth_reply->wps_requested)
	choice_done = true;

	done:
	auth_reply->peer_callback(auth_reply->peer, choice_done, wpspin,
	error, auth_reply->user_data);

	g_free(auth_reply);
	}

	int __connman_agent_request_peer_authorization(struct connman_peer *peer,
	peer_wps_cb_t callback,
	bool wps_requested,
	const char *dbus_sender,
	void *user_data)
	{
	struct request_wps_data wps = { .peer = true };
	const char path, agent_sender, *agent_path;
	struct request_input_reply *auth_reply;
	DBusMessageIter dict, iter;
	DBusMessage *message;
	void *agent;
	int err;

	agent = connman_agent_get_info(dbus_sender, &agent_sender,
	&agent_path);
	DBG("agent %p peer %p path %s", agent, peer, agent_path);

	if (!peer \|\| !agent \|\| !agent_path \|\| !callback)
	return -ESRCH;

	message = dbus_message_new_method_call(agent_sender, agent_path,
	CONNMAN_AGENT_INTERFACE, "RequestPeerAuthorization");
	if (!message)
	return -ENOMEM;

	dbus_message_iter_init_append(message, &iter);

	path = __connman_peer_get_path(peer);
	dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH, &path);

	connman_dbus_dict_open(&iter, &dict);

	if (wps_requested)
	connman_dbus_dict_append_dict(&dict, "WPS",
	request_input_append_wps, &wps);

	connman_dbus_dict_close(&iter, &dict);

	auth_reply = g_try_new0(struct request_input_reply, 1);
	if (!auth_reply) {
	dbus_message_unref(message);
	return -ENOMEM;
	}

	auth_reply->peer = peer;
	auth_reply->peer_callback = callback;
	auth_reply->wps_requested = wps_requested;
	auth_reply->user_data = user_data;

	err = connman_agent_queue_message(peer, message,
	connman_timeout_input_request(),
	request_peer_authorization_reply,
	auth_reply, agent);
	if (err < 0 && err != -EBUSY) {
	DBG("error %d sending agent message", err);
	dbus_message_unref(message);
	g_free(auth_reply);
	return err;
	}

	dbus_message_unref(message);

	return -EINPROGRESS;
	}