plugins/openconnect.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <string.h>
  27 #include <errno.h>
  28 #include <unistd.h>
  29
  30 #define CONNMAN_API_SUBJECT_TO_CHANGE
  31 #include <connman/plugin.h>
  32 #include <connman/provider.h>
  33 #include <connman/log.h>
  34 #include <connman/task.h>
  35
  36 #include "vpn.h"
  37
  38 static int oc_notify(DBusMessage *msg, struct connman_provider *provider)
  39 {
  40         DBusMessageIter iter, dict;
  41         struct oc_data *data;
  42         const char *reason, *key, *value;
  43         const char *domain = NULL;
  44
  45         dbus_message_iter_init(msg, &iter);
  46
  47         dbus_message_iter_get_basic(&iter, &reason);
  48         dbus_message_iter_next(&iter);
  49
  50         if (!provider) {
  51                 connman_error("No provider found");
  52                 return VPN_STATE_FAILURE;
  53         }
  54
  55         data = connman_provider_get_data(provider);
  56         if (!data) {
  57                 DBG("provider %p no data", provider);
  58                 return VPN_STATE_FAILURE;
  59         }
  60
  61         if (strcmp(reason, "connect"))
  62                 return VPN_STATE_DISCONNECT;
  63
  64         domain = connman_provider_get_string(provider, "VPN.Domain");
  65
  66         dbus_message_iter_recurse(&iter, &dict);
  67
  68         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
  69                 DBusMessageIter entry;
  70
  71                 dbus_message_iter_recurse(&dict, &entry);
  72                 dbus_message_iter_get_basic(&entry, &key);
  73                 dbus_message_iter_next(&entry);
  74                 dbus_message_iter_get_basic(&entry, &value);
  75
  76                 if (strcmp(key, "CISCO_CSTP_OPTIONS"))
  77                         DBG("%s = %s", key, value);
  78
  79                 if (!strcmp(key, "VPNGATEWAY"))
  80                         connman_provider_set_string(provider, "Gateway", value);
  81
  82                 if (!strcmp(key, "INTERNAL_IP4_ADDRESS"))
  83                         connman_provider_set_string(provider, "Address", value);
  84
  85                 if (!strcmp(key, "INTERNAL_IP4_NETMASK"))
  86                         connman_provider_set_string(provider, "Netmask", value);
  87
  88                 if (!strcmp(key, "INTERNAL_IP4_DNS"))
  89                         connman_provider_set_string(provider, "DNS", value);
  90
  91                 if (!strcmp(key, "CISCO_PROXY_PAC"))
  92                         connman_provider_set_string(provider, "PAC", value);
  93
  94                 if (domain == NULL && !strcmp(key, "CISCO_DEF_DOMAIN"))
  95                         domain = value;
  96
  97                 dbus_message_iter_next(&dict);
  98         }
  99
 100         connman_provider_set_string(provider, "Domain", domain);
 101
 102         return VPN_STATE_CONNECT;
 103 }
 104
 105 static int oc_connect(struct connman_provider *provider,
 106                         struct connman_task *task, const char *if_name)
 107 {
 108         const char *vpnhost, *vpncookie, *cafile, *mtu;
 109         int fd, err;
 110
 111         vpnhost = connman_provider_get_string(provider, "Host");
 112         if (!vpnhost) {
 113                 connman_error("Host not set; cannot enable VPN");
 114                 return -EINVAL;
 115         }
 116
 117         vpncookie = connman_provider_get_string(provider, "OpenConnect.Cookie");
 118         if (!vpncookie) {
 119                 connman_error("OpenConnect.Cookie not set; cannot enable VPN");
 120                 return -EINVAL;
 121         }
 122
 123         cafile = connman_provider_get_string(provider, "OpenConnect.CACert");
 124         mtu = connman_provider_get_string(provider, "VPN.MTU");
 125
 126         if (cafile)
 127                 connman_task_add_argument(task, "--cafile",
 128                                                         (char *)cafile);
 129         if (mtu)
 130                 connman_task_add_argument(task, "--mtu", (char *)mtu);
 131
 132         connman_task_add_argument(task, "--syslog", NULL);
 133         connman_task_add_argument(task, "--cookie-on-stdin", NULL);
 134
 135         connman_task_add_argument(task, "--script",
 136                                   SCRIPTDIR "/openconnect-script");
 137
 138         connman_task_add_argument(task, "--interface", if_name);
 139
 140         connman_task_add_argument(task, (char *)vpnhost, NULL);
 141
 142         err = connman_task_run(task, vpn_died, provider,
 143                                &fd, NULL, NULL);
 144         if (err < 0) {
 145                 connman_error("openconnect failed to start");
 146                 return -EIO;
 147         }
 148
 149         if (write(fd, vpncookie, strlen(vpncookie)) !=
 150                         (ssize_t)strlen(vpncookie) ||
 151                         write(fd, "\n", 1) != 1) {
 152                 connman_error("openconnect failed to take cookie on stdin");
 153                 return -EIO;
 154         }
 155
 156         return 0;
 157 }
 158
 159 static struct vpn_driver vpn_driver = {
 160         .notify         = oc_notify,
 161         .connect        = oc_connect,
 162 };
 163
 164 static int openconnect_init(void)
 165 {
 166         return vpn_register("openconnect", &vpn_driver, OPENCONNECT);
 167 }
 168
 169 static void openconnect_exit(void)
 170 {
 171         vpn_unregister("openconnect");
 172 }
 173
 174 CONNMAN_PLUGIN_DEFINE(openconnect, "OpenConnect VPN plugin", VERSION,
 175         CONNMAN_PLUGIN_PRIORITY_DEFAULT, openconnect_init, openconnect_exit)