vpn: New vpn daemon that handles vpn connections and clients

1 files changed, 0 insertions, 534 deletions

diff --git a/plugins/vpn.c b/plugins/vpn.c
deleted file mode 100644
index 165c3251..00000000
--- a/plugins/vpn.c
+++ /dev/null
@@ -1,534 +0,0 @@
-/*
- *
- *  Connection Manager
- *
- *  Copyright (C) 2007-2012  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
-
-#define _GNU_SOURCE
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <stdio.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <linux/if_tun.h>
-#include <net/if.h>
-
-#include <dbus/dbus.h>
-
-#include <glib/gprintf.h>
-
-#include <connman/provider.h>
-#include <connman/log.h>
-#include <connman/rtnl.h>
-#include <connman/task.h>
-#include <connman/inet.h>
-
-#include "vpn.h"
-
-struct vpn_data {
-	struct connman_provider *provider;
-	char *if_name;
-	unsigned flags;
-	unsigned int watch;
-	unsigned int state;
-	struct connman_task *task;
-};
-
-struct vpn_driver_data {
-	const char *name;
-	const char *program;
-	struct vpn_driver *vpn_driver;
-	struct connman_provider_driver provider_driver;
-};
-
-GHashTable *driver_hash = NULL;
-
-static int stop_vpn(struct connman_provider *provider)
-{
-	struct vpn_data *data = connman_provider_get_data(provider);
-	struct vpn_driver_data *vpn_driver_data;
-	const char *name;
-	struct ifreq ifr;
-	int fd, err;
-
-	if (data == NULL)
-		return -EINVAL;
-
-	name = connman_provider_get_driver_name(provider);
-	if (name == NULL)
-		return -EINVAL;
-
-	vpn_driver_data = g_hash_table_lookup(driver_hash, name);
-
-	if (vpn_driver_data != NULL && vpn_driver_data->vpn_driver != NULL &&
-			vpn_driver_data->vpn_driver->flags == VPN_FLAG_NO_TUN)
-		return 0;
-
-	memset(&ifr, 0, sizeof(ifr));
-	ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
-	sprintf(ifr.ifr_name, "%s", data->if_name);
-
-	fd = open("/dev/net/tun", O_RDWR | O_CLOEXEC);
-	if (fd < 0) {
-		err = -errno;
-		connman_error("Failed to open /dev/net/tun to device %s: %s",
-			      data->if_name, strerror(errno));
-		return err;
-	}
-
-	if (ioctl(fd, TUNSETIFF, (void *)&ifr)) {
-		err = -errno;
-		connman_error("Failed to TUNSETIFF for device %s to it: %s",
-			      data->if_name, strerror(errno));
-		close(fd);
-		return err;
-	}
-
-	if (ioctl(fd, TUNSETPERSIST, 0)) {
-		err = -errno;
-		connman_error("Failed to set tun device %s nonpersistent: %s",
-			      data->if_name, strerror(errno));
-		close(fd);
-		return err;
-	}
-	close(fd);
-	DBG("Killed tun device %s", data->if_name);
-	return 0;
-}
-
-void vpn_died(struct connman_task *task, int exit_code, void *user_data)
-{
-	struct connman_provider *provider = user_data;
-	struct vpn_data *data = connman_provider_get_data(provider);
-	int state = VPN_STATE_FAILURE;
-	enum connman_provider_error ret;
-
-	DBG("provider %p data %p", provider, data);
-
-	if (data == NULL)
-		goto vpn_exit;
-
-	state = data->state;
-
-	stop_vpn(provider);
-	connman_provider_set_data(provider, NULL);
-
-	if (data->watch != 0) {
-		connman_provider_unref(provider);
-		connman_rtnl_remove_watch(data->watch);
-		data->watch = 0;
-	}
-
-vpn_exit:
-	if (state != VPN_STATE_READY && state != VPN_STATE_DISCONNECT) {
-		const char *name;
-		struct vpn_driver_data *vpn_data = NULL;
-
-		name = connman_provider_get_driver_name(provider);
-		if (name != NULL)
-			vpn_data = g_hash_table_lookup(driver_hash, name);
-
-		if (vpn_data != NULL &&
-				vpn_data->vpn_driver->error_code != NULL)
-			ret = vpn_data->vpn_driver->error_code(exit_code);
-		else
-			ret = CONNMAN_PROVIDER_ERROR_UNKNOWN;
-
-		connman_provider_indicate_error(provider, ret);
-	} else
-		connman_provider_set_state(provider,
-						CONNMAN_PROVIDER_STATE_IDLE);
-
-	connman_provider_set_index(provider, -1);
-
-	if (data != NULL) {
-		connman_provider_unref(data->provider);
-		g_free(data->if_name);
-		g_free(data);
-	}
-
-	connman_task_destroy(task);
-}
-
-int vpn_set_ifname(struct connman_provider *provider, const char *ifname)
-{
-	struct vpn_data *data = connman_provider_get_data(provider);
-	int index;
-
-	if (ifname == NULL || data == NULL)
-		return  -EIO;
-
-	index = connman_inet_ifindex(ifname);
-	if (index < 0)
-		return  -EIO;
-
-	if (data->if_name != NULL)
-		g_free(data->if_name);
-
-	data->if_name = (char *)g_strdup(ifname);
-	connman_provider_set_index(provider, index);
-
-	return 0;
-}
-
-static void vpn_newlink(unsigned flags, unsigned change, void *user_data)
-{
-	struct connman_provider *provider = user_data;
-	struct vpn_data *data = connman_provider_get_data(provider);
-
-	if ((data->flags & IFF_UP) != (flags & IFF_UP)) {
-		if (flags & IFF_UP) {
-			data->state = VPN_STATE_READY;
-			connman_provider_set_state(provider,
-					CONNMAN_PROVIDER_STATE_READY);
-		}
-	}
-	data->flags = flags;
-}
-
-static DBusMessage *vpn_notify(struct connman_task *task,
-			DBusMessage *msg, void *user_data)
-{
-	struct connman_provider *provider = user_data;
-	struct vpn_data *data;
-	struct vpn_driver_data *vpn_driver_data;
-	const char *name;
-	int state, index;
-
-	data = connman_provider_get_data(provider);
-
-	name = connman_provider_get_driver_name(provider);
-	if (name == NULL)
-		return NULL;
-
-	vpn_driver_data = g_hash_table_lookup(driver_hash, name);
-	if (vpn_driver_data == NULL)
-		return NULL;
-
-	state = vpn_driver_data->vpn_driver->notify(msg, provider);
-	switch (state) {
-	case VPN_STATE_CONNECT:
-	case VPN_STATE_READY:
-		index = connman_provider_get_index(provider);
-		connman_provider_ref(provider);
-		data->watch = connman_rtnl_add_newlink_watch(index,
-						     vpn_newlink, provider);
-		connman_inet_ifup(index);
-		break;
-
-	case VPN_STATE_UNKNOWN:
-	case VPN_STATE_IDLE:
-	case VPN_STATE_DISCONNECT:
-	case VPN_STATE_FAILURE:
-		connman_provider_set_state(provider,
-					CONNMAN_PROVIDER_STATE_DISCONNECT);
-		break;
-
-	case VPN_STATE_AUTH_FAILURE:
-		connman_provider_indicate_error(provider,
-					CONNMAN_PROVIDER_ERROR_AUTH_FAILED);
-		break;
-	}
-
-	return NULL;
-}
-
-static int vpn_create_tun(struct connman_provider *provider)
-{
-	struct vpn_data *data = connman_provider_get_data(provider);
-	struct ifreq ifr;
-	int i, fd, index;
-	int ret = 0;
-
-	if (data == NULL)
-		return -EISCONN;
-
-	fd = open("/dev/net/tun", O_RDWR | O_CLOEXEC);
-	if (fd < 0) {
-		i = -errno;
-		connman_error("Failed to open /dev/net/tun: %s",
-			      strerror(errno));
-		ret = i;
-		goto exist_err;
-	}
-
-	memset(&ifr, 0, sizeof(ifr));
-	ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
-
-	for (i = 0; i < 256; i++) {
-		sprintf(ifr.ifr_name, "vpn%d", i);
-
-		if (!ioctl(fd, TUNSETIFF, (void *)&ifr))
-			break;
-	}
-
-	if (i == 256) {
-		connman_error("Failed to find available tun device");
-		close(fd);
-		ret = -ENODEV;
-		goto exist_err;
-	}
-
-	data->if_name = (char *)g_strdup(ifr.ifr_name);
-	if (data->if_name == NULL) {
-		connman_error("Failed to allocate memory");
-		close(fd);
-		ret = -ENOMEM;
-		goto exist_err;
-	}
-
-	if (ioctl(fd, TUNSETPERSIST, 1)) {
-		i = -errno;
-		connman_error("Failed to set tun persistent: %s",
-			      strerror(errno));
-		close(fd);
-		ret = i;
-		goto exist_err;
-	}
-
-	close(fd);
-
-	index = connman_inet_ifindex(data->if_name);
-	if (index < 0) {
-		connman_error("Failed to get tun ifindex");
-		stop_vpn(provider);
-		ret = -EIO;
-		goto exist_err;
-	}
-	connman_provider_set_index(provider, index);
-
-	return 0;
-
-exist_err:
-	return ret;
-}
-
-static int vpn_connect(struct connman_provider *provider)
-{
-	struct vpn_data *data = connman_provider_get_data(provider);
-	struct vpn_driver_data *vpn_driver_data;
-	const char *name;
-	int ret = 0;
-
-	if (data != NULL)
-		return -EISCONN;
-
-	data = g_try_new0(struct vpn_data, 1);
-	if (data == NULL)
-		return -ENOMEM;
-
-	data->provider = connman_provider_ref(provider);
-	data->watch = 0;
-	data->flags = 0;
-	data->task = NULL;
-	data->state = VPN_STATE_IDLE;
-
-	connman_provider_set_data(provider, data);
-
-	name = connman_provider_get_driver_name(provider);
-	if (name == NULL)
-		return -EINVAL;
-
-	vpn_driver_data = g_hash_table_lookup(driver_hash, name);
-
-	if (vpn_driver_data == NULL || vpn_driver_data->vpn_driver == NULL) {
-		ret = -EINVAL;
-		goto exist_err;
-	}
-
-	if (vpn_driver_data->vpn_driver->flags != VPN_FLAG_NO_TUN) {
-		ret = vpn_create_tun(provider);
-		if (ret < 0)
-			goto exist_err;
-	}
-
-	data->task = connman_task_create(vpn_driver_data->program);
-
-	if (data->task == NULL) {
-		ret = -ENOMEM;
-		stop_vpn(provider);
-		goto exist_err;
-	}
-
-	if (connman_task_set_notify(data->task, "notify",
-					vpn_notify, provider)) {
-		ret = -ENOMEM;
-		stop_vpn(provider);
-		connman_task_destroy(data->task);
-		data->task = NULL;
-		goto exist_err;
-	}
-
-	ret = vpn_driver_data->vpn_driver->connect(provider, data->task,
-							data->if_name);
-	if (ret < 0) {
-		stop_vpn(provider);
-		connman_task_destroy(data->task);
-		data->task = NULL;
-		goto exist_err;
-	}
-
-	DBG("%s started with dev %s",
-		vpn_driver_data->provider_driver.name, data->if_name);
-
-	data->state = VPN_STATE_CONNECT;
-
-	return -EINPROGRESS;
-
-exist_err:
-	connman_provider_set_index(provider, -1);
-	connman_provider_set_data(provider, NULL);
-	connman_provider_unref(data->provider);
-	g_free(data->if_name);
-	g_free(data);
-
-	return ret;
-}
-
-static int vpn_probe(struct connman_provider *provider)
-{
-	return 0;
-}
-
-static int vpn_disconnect(struct connman_provider *provider)
-{
-	struct vpn_data *data = connman_provider_get_data(provider);
-	struct vpn_driver_data *vpn_driver_data;
-	const char *name;
-
-	DBG("disconnect provider %p:", provider);
-
-	if (data == NULL)
-		return 0;
-
-	name = connman_provider_get_driver_name(provider);
-	if (name == NULL)
-		return 0;
-
-	vpn_driver_data = g_hash_table_lookup(driver_hash, name);
-	if (vpn_driver_data->vpn_driver->disconnect)
-		vpn_driver_data->vpn_driver->disconnect();
-
-	if (data->watch != 0) {
-		connman_provider_unref(provider);
-		connman_rtnl_remove_watch(data->watch);
-		data->watch = 0;
-	}
-
-	data->state = VPN_STATE_DISCONNECT;
-	connman_task_stop(data->task);
-
-	return 0;
-}
-
-static int vpn_remove(struct connman_provider *provider)
-{
-	struct vpn_data *data;
-
-	data = connman_provider_get_data(provider);
-	if (data == NULL)
-		return 0;
-
-	if (data->watch != 0) {
-		connman_provider_unref(provider);
-		connman_rtnl_remove_watch(data->watch);
-		data->watch = 0;
-	}
-
-	connman_task_stop(data->task);
-
-	g_usleep(G_USEC_PER_SEC);
-	stop_vpn(provider);
-	return 0;
-}
-
-static int vpn_save (struct connman_provider *provider, GKeyFile *keyfile)
-{
-	struct vpn_driver_data *vpn_driver_data;
-	const char *name;
-
-	name = connman_provider_get_driver_name(provider);
-	vpn_driver_data = g_hash_table_lookup(driver_hash, name);
-	if (vpn_driver_data != NULL &&
-			vpn_driver_data->vpn_driver->save != NULL)
-		return vpn_driver_data->vpn_driver->save(provider, keyfile);
-
-	return 0;
-}
-
-int vpn_register(const char *name, struct vpn_driver *vpn_driver,
-			const char *program)
-{
-	struct vpn_driver_data *data;
-
-	data = g_try_new0(struct vpn_driver_data, 1);
-	if (data == NULL)
-		return -ENOMEM;
-
-	data->name = name;
-	data->program = program;
-
-	data->vpn_driver = vpn_driver;
-
-	data->provider_driver.name = name;
-	data->provider_driver.disconnect = vpn_disconnect;
-	data->provider_driver.connect = vpn_connect;
-	data->provider_driver.probe = vpn_probe;
-	data->provider_driver.remove = vpn_remove;
-	data->provider_driver.save = vpn_save;
-
-	if (driver_hash == NULL)
-		driver_hash = g_hash_table_new_full(g_str_hash,
-							g_str_equal,
-							NULL, g_free);
-
-	if (driver_hash == NULL) {
-		connman_error("driver_hash not initialized for %s", name);
-		g_free(data);
-		return -ENOMEM;
-	}
-
-	g_hash_table_replace(driver_hash, (char *)name, data);
-
-	connman_provider_driver_register(&data->provider_driver);
-
-	return 0;
-}
-
-void vpn_unregister(const char *name)
-{
-	struct vpn_driver_data *data;
-
-	data = g_hash_table_lookup(driver_hash, name);
-	if (data == NULL)
-		return;
-
-	connman_provider_driver_unregister(&data->provider_driver);
-
-	g_hash_table_remove(driver_hash, name);
-
-	if (g_hash_table_size(driver_hash) == 0)
-		g_hash_table_destroy(driver_hash);
-}