From b1527c31c9aa5ed571909dcde0a4c6851e829bd3 Mon Sep 17 00:00:00 2001
From: Patrik Flykt <patrik.flykt@nokia.com>
Date: Tue, 21 Sep 2010 10:07:49 +0300
Subject: [PATCH] Agent API RequestInput method for requesting passphrases

request_input_passphrase_reply creates and sends an Agent API RequestInput
method call and waits for the method call return. The function expects a
passhphrase_cb_t to be supplied. Only the "Passphrase" dictionary field is
requested by the method call and only the "Passphrase" dictionary field in
the method call return is used.
---
 src/agent.c   | 130 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/connman.h |   2 +
 2 files changed, 132 insertions(+)

diff --git a/src/agent.c b/src/agent.c
index 2452b1b..c8341d4 100644
--- a/src/agent.c
+++ b/src/agent.c
@@ -113,6 +113,136 @@ int __connman_agent_request_passphrase(struct connman_service *service,
 	return -EIO;
 }
 
+struct request_input_reply {
+	struct connman_service *service;
+	passphrase_cb_t callback;
+	void *user_data;
+};
+
+static void request_input_passphrase_reply(DBusPendingCall *call, void *user_data)
+{
+	struct request_input_reply *passphrase_reply = user_data;
+	char *passphrase = NULL;
+	char *key;
+	DBusMessageIter iter, dict;
+	DBusMessage *reply = dbus_pending_call_steal_reply(call);
+
+	if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
+		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, "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);
+			break;
+		}
+		dbus_message_iter_next(&dict);
+	}
+
+done:
+	passphrase_reply->callback(passphrase_reply->service,
+				passphrase, passphrase_reply->user_data);
+	connman_service_unref(passphrase_reply->service);
+	dbus_message_unref(reply);
+	g_free(passphrase_reply);
+}
+
+static void request_input_append_passphrase(DBusMessageIter *iter, void *user_data)
+{
+	struct connman_service *service = user_data;
+	char *value;
+
+	switch (__connman_service_get_security(service)) {
+	case CONNMAN_SERVICE_SECURITY_WEP:
+		value = "wep";
+		break;
+	case CONNMAN_SERVICE_SECURITY_PSK:
+		value = "psk";
+		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);
+}
+
+int __connman_agent_request_input(struct connman_service *service,
+				passphrase_cb_t callback, void *user_data)
+{
+	DBusMessage *message;
+	const char *path;
+	DBusMessageIter iter;
+	DBusMessageIter dict;
+	DBusPendingCall *call;
+	struct request_input_reply *passphrase_reply;
+
+	if (service == NULL || agent_path == NULL || callback == NULL)
+		return -ESRCH;
+
+	message = dbus_message_new_method_call(agent_sender, agent_path,
+					CONNMAN_AGENT_INTERFACE,
+					"RequestInput");
+	if (message == NULL)
+		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, "Passphrase",
+				request_input_append_passphrase, service);
+	connman_dbus_dict_close(&iter, &dict);
+
+	passphrase_reply = g_try_new0(struct request_input_reply, 1);
+	if (passphrase_reply == NULL) {
+		dbus_message_unref(message);
+		return -ENOMEM;
+	}
+
+	if (dbus_connection_send_with_reply(connection, message,
+						&call, -1) == FALSE) {
+		dbus_message_unref(message);
+		g_free(passphrase_reply);
+		return -ESRCH;
+	}
+
+	if (call == NULL) {
+		dbus_message_unref(message);
+		g_free(passphrase_reply);
+		return -ESRCH;
+	}
+
+	passphrase_reply->service = connman_service_ref(service);
+	passphrase_reply->callback = callback;
+	passphrase_reply->user_data = user_data;
+
+	dbus_pending_call_set_notify(call, request_input_passphrase_reply,
+				passphrase_reply, NULL);
+
+	dbus_message_unref(message);
+
+	return -EIO;
+}
+
 int __connman_agent_init(void)
 {
 	DBG("");
diff --git a/src/connman.h b/src/connman.h
index f4ba942..1e5496a 100644
--- a/src/connman.h
+++ b/src/connman.h
@@ -82,6 +82,8 @@ typedef void (* passphrase_cb_t) (struct connman_service *service,
 
 int __connman_agent_request_passphrase(struct connman_service *service,
 				passphrase_cb_t callback, void *user_data);
+int __connman_agent_request_input(struct connman_service *service,
+				passphrase_cb_t callback, void *user_data);
 
 #include <connman/log.h>
 
-- 
2.7.4