plugins: Initial vpnc support

diff --git a/plugins/vpnc.c b/plugins/vpnc.c
new file mode 100644 (file)
index 0000000..b04ad24
--- /dev/null
+++ b/plugins/vpnc.c
@@ -0,0 +1,277 @@
+/*
+ *
+ *  Connection Manager
+ *
+ *  Copyright (C) 2010  BMW Car IT GmbH. 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
+
+#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/provider.h>
+#include <connman/log.h>
+#include <connman/task.h>
+#include <connman/dbus.h>
+
+#include "vpn.h"
+
+#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
+
+static DBusConnection *connection;
+
+enum {
+       OPT_STRING = 1,
+       OPT_BOOLEAN = 2,
+};
+
+struct {
+       const char *cm_opt;
+       const char *vpnc_opt;
+       const char *vpnc_default;
+       int type;
+} vpnc_options[] = {
+       { "Host", "IPSec gateway", NULL, OPT_STRING },
+       { "VPNC.IPSec.ID", "IPSec ID", NULL, OPT_STRING },
+       { "VPNC.IPSec.Secret", "IPSec secret", NULL, OPT_STRING },
+       { "VPNC.Xauth.Username", "Xauth username", NULL, OPT_STRING },
+       { "VPNC.Xauth.Password", "Xauth password", NULL, OPT_STRING },
+       { "VPNC.IKE.Authmode", "IKE Authmode", NULL, OPT_STRING },
+       { "VPNC.IKE.DHGroup", "IKE DH Group", NULL, OPT_STRING },
+       { "VPNC.PFS", "Perfect Forward Secrecy", NULL, OPT_STRING },
+       { "VPNC.Domain", "Domain", NULL, OPT_STRING },
+       { "VPNC.Vendor", "Vendor", NULL, OPT_STRING },
+       { "VPNC.LocalPort", "Local Port", "0", OPT_STRING },
+       { "VPNC.CiscoPort","Cisco UDP Encapsulation Port", "0", OPT_STRING },
+       { "VPNC.AppVersion", "Application Version", NULL, OPT_STRING },
+       { "VPNC.NATTMode", "NAT Traversal Mode", "cisco-udp", OPT_STRING },
+       { "VPNC.DPDTimeout", "DPD idle timeout (our side)", NULL, OPT_STRING },
+       { "VPNC.SingleDES", "Enable Single DES", NULL, OPT_BOOLEAN },
+       { "VPNC.NoEncryption", "Enable no encryption", NULL, OPT_BOOLEAN },
+};
+
+static int vc_notify(DBusMessage *msg, struct connman_provider *provider)
+{
+       DBusMessageIter iter, dict;
+       const char *reason, *key, *value;
+
+       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, "connect"))
+               return VPN_STATE_DISCONNECT;
+
+       dbus_message_iter_recurse(&iter, &dict);
+
+       while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
+               DBusMessageIter entry;
+
+               dbus_message_iter_recurse(&dict, &entry);
+               dbus_message_iter_get_basic(&entry, &key);
+               dbus_message_iter_next(&entry);
+               dbus_message_iter_get_basic(&entry, &value);
+
+               DBG("%s = %s", key, value);
+
+               if (!strcmp(key, "VPNGATEWAY"))
+                       connman_provider_set_string(provider, "Gateway", value);
+
+               if (!strcmp(key, "INTERNAL_IP4_ADDRESS"))
+                       connman_provider_set_string(provider, "Address", value);
+
+               if (!strcmp(key, "INTERNAL_IP4_NETMASK"))
+                       connman_provider_set_string(provider, "Netmask", value);
+
+               if (!strcmp(key, "INTERNAL_IP4_DNS"))
+                       connman_provider_set_string(provider, "DNS", value);
+
+               if (!strcmp(key, "CISCO_DEF_DOMAIN"))
+                       connman_provider_set_string(provider, "Domain", value);
+
+               if (g_str_has_prefix(key, "CISCO_SPLIT_INC") == TRUE ||
+                       g_str_has_prefix(key, "CISCO_IPV6_SPLIT_INC") == TRUE)
+                       connman_provider_append_route(provider, key, value);
+
+               dbus_message_iter_next(&dict);
+       }
+
+       return VPN_STATE_CONNECT;
+}
+
+static ssize_t full_write(int fd, const void *buf, size_t len)
+{
+       ssize_t byte_write;
+
+       while (len) {
+               byte_write = write(fd, buf, len);
+               if (byte_write < 0) {
+                       connman_error("failed to write config to vpnc: %s\n",
+                                       strerror(errno));
+                       return byte_write;
+               }
+               len -= byte_write;
+               buf += byte_write;
+       }
+
+       return 0;
+}
+
+static ssize_t write_option(int fd, const char *key, const char *value)
+{
+       gchar *buf;
+       ssize_t ret = 0;
+
+       if (key != NULL && value != NULL) {
+               buf = g_strdup_printf("%s %s\n", key, value);
+               ret = full_write(fd, buf, strlen(buf));
+
+               g_free(buf);
+       }
+
+       return ret;
+}
+
+static ssize_t write_bool_option(int fd, const char *key, const char *value)
+{
+       gchar *buf;
+       ssize_t ret = 0;
+
+       if (key != NULL && value != NULL) {
+               if (strcmp(value, "yes") == 0) {
+                       buf = g_strdup_printf("%s\n", key);
+                       ret = full_write(fd, buf, strlen(buf));
+
+                       g_free(buf);
+               }
+       }
+
+       return ret;
+}
+
+static int vc_write_config_data(struct connman_provider *provider, int fd)
+{
+       const char *opt_s;
+       int i;
+
+       for (i = 0; i < (int)ARRAY_SIZE(vpnc_options); i++) {
+               opt_s = connman_provider_get_string(provider,
+                                       vpnc_options[i].cm_opt);
+               if (!opt_s)
+                       opt_s= vpnc_options[i].vpnc_default;
+
+               if(!opt_s)
+                       continue;
+
+               if (vpnc_options[i].type == OPT_STRING) {
+                       if (write_option(fd,
+                                       vpnc_options[i].vpnc_opt, opt_s) < 0)
+                               return -EIO;
+               } else if (vpnc_options[i].type == OPT_BOOLEAN) {
+                       if (write_bool_option(fd,
+                                       vpnc_options[i].vpnc_opt, opt_s) < 0)
+                               return -EIO;
+               }
+
+       }
+
+       return 0;
+}
+
+static int vc_connect(struct connman_provider *provider,
+               struct connman_task *task, const char *if_name)
+{
+       const char *option;
+       int err, fd;
+
+       option = connman_provider_get_string(provider, "Host");
+       if (option == NULL) {
+               connman_error("Host not set; cannot enable VPN");
+               return -EINVAL;
+       }
+       option = connman_provider_get_string(provider, "VPNC.IPSec.ID");
+       if (option == NULL) {
+               connman_error("Group not set; cannot enable VPN");
+               return -EINVAL;
+       }
+
+       connman_task_add_argument(task, "--non-inter", NULL);
+       connman_task_add_argument(task, "--no-detach", NULL);
+
+       connman_task_add_argument(task, "--ifname", if_name);
+       connman_task_add_argument(task, "--ifmode", "tun");
+
+       connman_task_add_argument(task, "--script",
+                               SCRIPTDIR "/openconnect-script");
+
+       option = connman_provider_get_string(provider, "VPNC.Debug");
+       if (option != NULL)
+               connman_task_add_argument(task, "--debug", option);
+
+       connman_task_add_argument(task, "-", NULL);
+
+       err = connman_task_run(task, vpn_died, provider,
+                               &fd, NULL, NULL);
+       if (err < 0) {
+               connman_error("vpnc failed to start");
+               return -EIO;
+       }
+
+       err = vc_write_config_data(provider, fd);
+
+       close(fd);
+
+       return err;
+}
+
+static struct vpn_driver vpn_driver = {
+       .notify         = vc_notify,
+       .connect        = vc_connect,
+};
+
+static int vpnc_init(void)
+{
+       connection = connman_dbus_get_connection();
+
+       return vpn_register("vpnc", &vpn_driver, VPNC);
+}
+
+static void vpnc_exit(void)
+{
+       vpn_unregister("vpnc");
+
+       dbus_connection_unref(connection);
+}
+
+CONNMAN_PLUGIN_DEFINE(vpnc, "vpnc plugin", VERSION,
+       CONNMAN_PLUGIN_PRIORITY_DEFAULT, vpnc_init, vpnc_exit)

diff --git a/scripts/openconnect-script.c b/scripts/openconnect-script.c
index 565bda7453aedd37fc2f8e75e9bb7201b22f251f..509fc9584d8390b8643e92253ffa8460a1cd0557 100644 (file)
--- a/scripts/openconnect-script.c
+++ b/scripts/openconnect-script.c
@@ -79,6 +79,10 @@ int main(int argc, char *argv[])
                fprintf(stderr, "Required environment variables not set\n");
                return 1;
        }
+
+       if (strcmp(reason, "pre-init") == 0)
+               return 0;
+
        dbus_error_init(&error);
 
        conn = dbus_bus_get(DBUS_BUS_SYSTEM, &error);