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         const char *reason, *key, *value;
  42         const char *domain = NULL;
  43
  44         dbus_message_iter_init(msg, &iter);
  45
  46         dbus_message_iter_get_basic(&iter, &reason);
  47         dbus_message_iter_next(&iter);
  48
  49         if (!provider) {
  50                 connman_error("No provider found");
  51                 return VPN_STATE_FAILURE;
  52         }
  53
  54         if (strcmp(reason, "connect"))
  55                 return VPN_STATE_DISCONNECT;
  56
  57         domain = connman_provider_get_string(provider, "VPN.Domain");
  58
  59         dbus_message_iter_recurse(&iter, &dict);
  60
  61         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
  62                 DBusMessageIter entry;
  63
  64                 dbus_message_iter_recurse(&dict, &entry);
  65                 dbus_message_iter_get_basic(&entry, &key);
  66                 dbus_message_iter_next(&entry);
  67                 dbus_message_iter_get_basic(&entry, &value);
  68
  69                 if (strcmp(key, "CISCO_CSTP_OPTIONS"))
  70                         DBG("%s = %s", key, value);
  71
  72                 if (!strcmp(key, "VPNGATEWAY"))
  73                         connman_provider_set_string(provider, "Gateway", value);
  74
  75                 if (!strcmp(key, "INTERNAL_IP4_ADDRESS"))
  76                         connman_provider_set_string(provider, "Address", value);
  77
  78                 if (!strcmp(key, "INTERNAL_IP4_NETMASK"))
  79                         connman_provider_set_string(provider, "Netmask", value);
  80
  81                 if (!strcmp(key, "INTERNAL_IP4_DNS"))
  82                         connman_provider_set_string(provider, "DNS", value);
  83
  84                 if (!strcmp(key, "CISCO_PROXY_PAC"))
  85                         connman_provider_set_string(provider, "PAC", value);
  86
  87                 if (domain == NULL && !strcmp(key, "CISCO_DEF_DOMAIN"))
  88                         domain = value;
  89
  90                 dbus_message_iter_next(&dict);
  91         }
  92
  93         connman_provider_set_string(provider, "Domain", domain);
  94
  95         return VPN_STATE_CONNECT;
  96 }
  97
  98 static int oc_connect(struct connman_provider *provider,
  99                         struct connman_task *task, const char *if_name)
 100 {
 101         const char *vpnhost, *vpncookie, *cafile, *certsha1, *mtu;
 102         int fd, err;
 103
 104         vpnhost = connman_provider_get_string(provider, "Host");
 105         if (!vpnhost) {
 106                 connman_error("Host not set; cannot enable VPN");
 107                 return -EINVAL;
 108         }
 109
 110         vpncookie = connman_provider_get_string(provider, "OpenConnect.Cookie");
 111         if (!vpncookie) {
 112                 connman_error("OpenConnect.Cookie not set; cannot enable VPN");
 113                 return -EINVAL;
 114         }
 115
 116         certsha1 = connman_provider_get_string(provider,
 117                                                 "OpenConnect.ServerCert");
 118         if (certsha1)
 119                 connman_task_add_argument(task, "--servercert",
 120                                                         (char *)certsha1);
 121
 122         cafile = connman_provider_get_string(provider, "OpenConnect.CACert");
 123         mtu = connman_provider_get_string(provider, "VPN.MTU");
 124
 125         if (cafile)
 126                 connman_task_add_argument(task, "--cafile",
 127                                                         (char *)cafile);
 128         if (mtu)
 129                 connman_task_add_argument(task, "--mtu", (char *)mtu);
 130
 131         connman_task_add_argument(task, "--syslog", NULL);
 132         connman_task_add_argument(task, "--cookie-on-stdin", NULL);
 133
 134         connman_task_add_argument(task, "--script",
 135                                   SCRIPTDIR "/openconnect-script");
 136
 137         connman_task_add_argument(task, "--interface", if_name);
 138
 139         connman_task_add_argument(task, (char *)vpnhost, NULL);
 140
 141         err = connman_task_run(task, vpn_died, provider,
 142                                &fd, NULL, NULL);
 143         if (err < 0) {
 144                 connman_error("openconnect failed to start");
 145                 return -EIO;
 146         }
 147
 148         if (write(fd, vpncookie, strlen(vpncookie)) !=
 149                         (ssize_t)strlen(vpncookie) ||
 150                         write(fd, "\n", 1) != 1) {
 151                 connman_error("openconnect failed to take cookie on stdin");
 152                 return -EIO;
 153         }
 154
 155         return 0;
 156 }
 157
 158 static struct vpn_driver vpn_driver = {
 159         .notify         = oc_notify,
 160         .connect        = oc_connect,
 161 };
 162
 163 static int openconnect_init(void)
 164 {
 165         return vpn_register("openconnect", &vpn_driver, OPENCONNECT);
 166 }
 167
 168 static void openconnect_exit(void)
 169 {
 170         vpn_unregister("openconnect");
 171 }
 172
 173 CONNMAN_PLUGIN_DEFINE(openconnect, "OpenConnect VPN plugin", VERSION,
 174         CONNMAN_PLUGIN_PRIORITY_DEFAULT, openconnect_init, openconnect_exit)