[PATCH 3/8] gprs-provision: add driver API sources

[Jukka Saunamaki <jukka.saunamaki@nokia.com>]

[-- Attachment #1: Type: text/plain, Size: 7150 bytes --]

---
 Makefile.am          |    2 +-
 src/gprs-provision.c |  236 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 237 insertions(+), 1 deletions(-)
 create mode 100644 src/gprs-provision.c

diff --git a/Makefile.am b/Makefile.am
index 22ec95d..e792851 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -354,7 +354,7 @@ src_ofonod_SOURCES = $(gdbus_sources) $(builtin_sources) src/ofono.ver \
 			src/nettime.c src/stkagent.c src/stkagent.h \
 			src/simfs.c src/simfs.h src/audio-settings.c \
 			src/smsagent.c src/smsagent.h src/ctm.c \
-			src/cdma-voicecall.c
+			src/cdma-voicecall.c src/gprs-provision.c
 
 src_ofonod_LDADD = $(builtin_libadd) @GLIB_LIBS@ @DBUS_LIBS@ @CAPNG_LIBS@ -ldl
 
diff --git a/src/gprs-provision.c b/src/gprs-provision.c
new file mode 100644
index 0000000..1690bc7
--- /dev/null
+++ b/src/gprs-provision.c
@@ -0,0 +1,236 @@
+/*
+ *
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2011  Nokia Corporation and/or its subsidiary(-ies).
+ *
+ *  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 <stdlib.h>
+#include <glib.h>
+
+#include "ofono.h"
+#include "gprs-provision.h"
+
+static GSList *g_drivers = NULL;
+static GSList *provision_requests = NULL;
+
+struct gprs_provision_request {
+	GSList *drivers; /* Provisioning drivers to be called */
+	struct ofono_modem *modem;
+	ofono_gprs_provision_cb_t cb;
+	void *user_data;
+};
+
+static void settings_cb(GSList *settings, void *user_data);
+
+static struct ofono_gprs_provision_context *gprs_provision_context_create(
+			struct ofono_modem *modem,
+			struct ofono_gprs_provision_driver *driver)
+{
+	struct ofono_gprs_provision_context *context;
+
+	if (driver->probe == NULL)
+		return NULL;
+
+	context = g_try_new0(struct ofono_gprs_provision_context, 1);
+
+	if (context == NULL)
+		return NULL;
+
+	context->driver = driver;
+	context->modem = modem;
+
+	if (driver->probe(context) < 0) {
+		g_free(context);
+		return NULL;
+	}
+
+	return context;
+}
+
+static void clean_active_requests(gpointer data, gpointer user_data)
+{
+	struct gprs_provision_request *req = data;
+	struct ofono_gprs_provision_context *context = user_data;
+
+	req->drivers = g_slist_remove(req->drivers, context);
+}
+
+static void context_remove(struct ofono_atom *atom)
+{
+	struct ofono_gprs_provision_context *context =
+		__ofono_atom_get_data(atom);
+
+	g_slist_foreach(provision_requests, clean_active_requests, context);
+
+	if (context->driver->remove)
+		context->driver->remove(context);
+
+	g_free(context);
+}
+
+void __ofono_gprs_provision_probe_drivers(struct ofono_modem *modem)
+{
+	struct ofono_gprs_provision_driver *driver;
+	struct ofono_gprs_provision_context *context;
+	GSList *l;
+
+	for (l = g_drivers; l; l = l->next) {
+		driver = l->data;
+
+		context = gprs_provision_context_create(modem, driver);
+		if (context == NULL)
+			continue;
+
+		__ofono_modem_add_atom(modem, OFONO_ATOM_TYPE_GPRS_PROVISION,
+						context_remove, context);
+	}
+}
+
+void ofono_gprs_provision_data_free(struct ofono_gprs_provision_data *data)
+{
+	if (data == NULL)
+		return;
+
+	free(data->name);
+	free(data->apn);
+	free(data->username);
+	free(data->password);
+	free(data->message_proxy);
+	free(data->message_center);
+	g_free(data);
+}
+
+/*
+ * Calls next driver that has callable get_settings()
+ * Returns TRUE if a driver was called.
+ */
+static gboolean call_driver_get_settings(struct gprs_provision_request *req,
+						ofono_gprs_provision_cb_t cb)
+{
+	struct ofono_gprs_provision_context *context;
+
+	if (req->drivers == NULL)
+		return FALSE;
+
+	do {
+		context = req->drivers->data;
+		req->drivers = g_slist_delete_link(req->drivers, req->drivers);
+
+		if (context->driver->get_settings != NULL) {
+			DBG("Calling provisioning plugin '%s'",
+				context->driver->name);
+
+			provision_requests = g_slist_append(provision_requests,
+								req);
+			context->driver->get_settings(context, cb, req);
+			return TRUE;
+		}
+
+	} while (req->drivers != NULL);
+
+	return FALSE;
+}
+
+static void settings_cb(GSList *settings, void *user_data)
+{
+	struct gprs_provision_request *req = user_data;
+
+	provision_requests = g_slist_remove(provision_requests, req);
+	if (settings == NULL) {
+		DBG("Provisioning plugin returned no settings");
+
+		/* No success from this driver, try next */
+		if (call_driver_get_settings(req, settings_cb) == TRUE)
+			return;
+	} else
+		DBG("Provisioning plugin returned settings for %d contexts",
+			g_slist_length(settings));
+
+	req->cb(settings, req->user_data);
+	g_slist_free(req->drivers);
+	g_free(req);
+}
+
+static void prepend_provision_driver(struct ofono_atom *atom, void *data)
+{
+	struct ofono_gprs_provision_context *context =
+		__ofono_atom_get_data(atom);
+	GSList **drivers = data;
+
+	*drivers = g_slist_prepend(*drivers, context);
+}
+
+void __ofono_gprs_provision_get_settings(struct ofono_modem *modem,
+						ofono_gprs_provision_cb_t cb,
+						void *user_data)
+{
+	struct gprs_provision_request *req;
+
+	req = g_try_new0(struct gprs_provision_request, 1);
+	if (req == NULL)
+		goto error;
+
+	req->modem = modem;
+	req->cb = cb;
+	req->user_data = user_data;
+
+	__ofono_modem_foreach_atom(modem, OFONO_ATOM_TYPE_GPRS_PROVISION,
+					prepend_provision_driver,
+					&req->drivers);
+
+	if (call_driver_get_settings(req, settings_cb) == TRUE)
+		return;
+
+	DBG("No callable GPRS provision drivers");
+
+	g_slist_free(req->drivers);
+
+error:
+	g_free(req);
+	cb(NULL, user_data);
+}
+
+static gint compare_priority(gconstpointer a, gconstpointer b)
+{
+	const struct ofono_gprs_provision_driver *plugin1 = a;
+	const struct ofono_gprs_provision_driver *plugin2 = b;
+
+	return plugin2->priority - plugin1->priority;
+}
+
+int ofono_gprs_provision_driver_register(
+			const struct ofono_gprs_provision_driver *driver)
+{
+	DBG("driver: %p name: %s", driver, driver->name);
+
+	g_drivers = g_slist_insert_sorted(g_drivers, (void *) driver,
+						compare_priority);
+	return 0;
+}
+
+void ofono_gprs_provision_driver_unregister(
+			const struct ofono_gprs_provision_driver *driver)
+{
+	DBG("driver: %p name: %s", driver, driver->name);
+
+	g_drivers = g_slist_remove(g_drivers, driver);
+}
-- 
1.7.1