Hello,
I have tried to run tinc on a platform that uses connman (OpenELEC), and I
came to the conclusion that a connman tinc vpn plugin is appropriate.
I have attached a proposal, for discussion. I am no programmer, so please
bare with me.
The purpose of the attached (untested) code is merely to start a tinc
daemon (tincd -n name).
Tinc triggers scripts upon events, e.g. tinc-up after tinc comes up,
tinc-down before tinc comes down, etc. This feature could advantageously be
used to keep the tinc vpn plugin to a bare minimum, e.g. tinc-up could call
"connmanctl config service ipv4...", rather than the tinc vpn plugin.
Does this correspond to the philosophy of connman?
Additional questions:
Is it possible to configure a service without a gateway?
Is it possible to tether a vpn?
Thank you for your attention and support,
Anton Voyl
/*
*
* ConnMan VPN daemon
*
* Copyright (C) 2010-2014 BMW Car IT GmbH.
*
* 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 <string.h>
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <net/if.h>
#include <glib.h>
#define CONNMAN_API_SUBJECT_TO_CHANGE
#include <connman/plugin.h>
#include <connman/log.h>
#include <connman/task.h>
#include <connman/dbus.h>
#include <connman/ipconfig.h>
#include "../vpn-provider.h"
#include "vpn.h"
#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
static DBusConnection *connection;
static int tinc_notify(DBusMessage *msg, struct vpn_provider *provider)
{
DBusMessageIter iter;
const char *reason;
dbus_message_iter_init(msg, &iter);
dbus_message_iter_get_basic(&iter, &reason);
dbus_message_iter_next(&iter);
if (!provider) {
connman_error("No provider found");
return VPN_STATE_FAILURE;
}
if (strcmp(reason, "Ready"))
return VPN_STATE_DISCONNECT;
}
static int tinc_connect(struct vpn_provider *provider,
struct connman_task *task, const char *if_name,
vpn_provider_connect_cb_t cb, const char *dbus_sender,
void *user_data)
{
int err = 0, fd;
const char *name;
task_append_config_data(provider, task);
name = vpn_provider_get_string(provider, "Name");
if (name)
connman_task_add_argument(task, "-n", name);
fd = fileno(stderr);
err = connman_task_run(task, vpn_died, provider,
NULL, &fd, &fd);
if (err < 0) {
connman_error("tinc failed to start");
err = -EIO;
goto done;
}
done:
if (cb)
cb(provider, user_data, err);
return err;
}
static struct vpn_driver vpn_driver = {
.notify = tinc_notify,
.connect = tinc_connect,
};
static int tinc_init(void)
{
connection = connman_dbus_get_connection();
return vpn_register("tinc", &vpn_driver, TINC);
}
static void tinc_exit(void)
{
vpn_unregister("tinc");
dbus_connection_unref(connection);
}
CONNMAN_PLUGIN_DEFINE(tinc, "tinc plugin", VERSION,
CONNMAN_PLUGIN_PRIORITY_DEFAULT, tinc_init, tinc_exit)
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