examples: Add a simple private-network driver

Makefile.am

@@ -357,6 +357,9 @@ builtin_sources += examples/provision.c
 
 builtin_modules += example_emulator
 builtin_sources += examples/emulator.c
+
+builtin_modules += example_private_network
+builtin_sources += examples/private-network.c
 endif
 
 builtin_modules += smart_messaging

examples/private-network.c

@@ -0,0 +1,137 @@
+/*
+ *
+ *  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 <string.h>
+#include <glib.h>
+
+#include <fcntl.h>
+#include <errno.h>
+#include <net/if.h>
+#include <linux/if_tun.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <stdio.h>
+
+#define OFONO_API_SUBJECT_TO_CHANGE
+
+#include <ofono/modem.h>
+#include <ofono/types.h>
+#include <ofono/plugin.h>
+#include <ofono/log.h>
+#include <ofono/private-network.h>
+
+#define SERVER_ADDRESS		"192.168.1.1"
+#define DNS_SERVER_1		"10.10.10.10"
+#define DNS_SERVER_2		"10.10.10.11"
+#define PEER_ADDRESS_PREFIX	"192.168.1."
+
+static int next_peer = 2;
+
+struct req_data {
+	ofono_private_network_cb_t cb;
+	void *userdata;
+};
+
+static gboolean request_cb(gpointer data)
+{
+	struct req_data *rd = data;
+	struct ofono_private_network_settings pns;
+	struct ifreq ifr;
+	int fd, err;
+	char ip[16];
+
+	fd = open("/dev/net/tun", O_RDWR);
+	if (fd < 0)
+		goto error;
+
+	memset(&ifr, 0, sizeof(ifr));
+	ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
+	strcpy(ifr.ifr_name, "ppp%d");
+
+	err = ioctl(fd, TUNSETIFF, (void *) &ifr);
+	if (err < 0)
+		goto error;
+
+	sprintf(ip, "%s%d", PEER_ADDRESS_PREFIX, next_peer++);
+
+	pns.fd = fd;
+	pns.server_ip = SERVER_ADDRESS;
+	pns.peer_ip = ip;
+	pns.primary_dns = DNS_SERVER_1;
+	pns.secondary_dns = DNS_SERVER_2;
+
+	rd->cb(&pns, rd->userdata);
+
+	return FALSE;
+
+error:
+	if (fd >= 0)
+		close(fd);
+
+	rd->cb(NULL, rd->userdata);
+
+	return FALSE;
+}
+
+static int example_request(ofono_private_network_cb_t cb, void *data)
+{
+	struct req_data *rd = g_new0(struct req_data, 1);
+
+	DBG("");
+
+	rd->cb = cb;
+	rd->userdata = data;
+
+	return g_timeout_add_seconds_full(G_PRIORITY_DEFAULT, 2, request_cb,
+						rd, (GDestroyNotify) g_free);
+}
+
+static void example_release(int id)
+{
+	DBG("");
+
+	g_source_remove(id);
+}
+
+static struct ofono_private_network_driver example_driver = {
+	.name		= "Example Private Network Driver",
+	.request	= example_request,
+	.release	= example_release,
+};
+
+static int example_private_network_init(void)
+{
+	return ofono_private_network_driver_register(&example_driver);
+}
+
+static void example_private_network_exit(void)
+{
+	ofono_private_network_driver_unregister(&example_driver);
+}
+
+OFONO_PLUGIN_DEFINE(example_private_network, "Example Private Network Plugin",
+			VERSION, OFONO_PLUGIN_PRIORITY_LOW,
+			example_private_network_init,
+			example_private_network_exit)