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 #include <glib.h>
  31
  32 #define CONNMAN_API_SUBJECT_TO_CHANGE
  33 #include <connman/plugin.h>
  34 #include <connman/provider.h>
  35 #include <connman/log.h>
  36 #include <connman/task.h>
  37
  38 #include "vpn.h"
  39
  40 static int oc_notify(DBusMessage *msg, struct connman_provider *provider)
  41 {
  42         DBusMessageIter iter, dict;
  43         const char *reason, *key, *value;
  44         const char *domain = NULL;
  45
  46         dbus_message_iter_init(msg, &iter);
  47
  48         dbus_message_iter_get_basic(&iter, &reason);
  49         dbus_message_iter_next(&iter);
  50
  51         if (!provider) {
  52                 connman_error("No provider found");
  53                 return VPN_STATE_FAILURE;
  54         }
  55
  56         if (strcmp(reason, "connect"))
  57                 return VPN_STATE_DISCONNECT;
  58
  59         domain = connman_provider_get_string(provider, "VPN.Domain");
  60
  61         dbus_message_iter_recurse(&iter, &dict);
  62
  63         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
  64                 DBusMessageIter entry;
  65
  66                 dbus_message_iter_recurse(&dict, &entry);
  67                 dbus_message_iter_get_basic(&entry, &key);
  68                 dbus_message_iter_next(&entry);
  69                 dbus_message_iter_get_basic(&entry, &value);
  70
  71                 if (strcmp(key, "CISCO_CSTP_OPTIONS"))
  72                         DBG("%s = %s", key, value);
  73
  74                 if (!strcmp(key, "VPNGATEWAY"))
  75                         connman_provider_set_string(provider, "Gateway", value);
  76
  77                 if (!strcmp(key, "INTERNAL_IP4_ADDRESS"))
  78                         connman_provider_set_string(provider, "Address", value);
  79
  80                 if (!strcmp(key, "INTERNAL_IP4_NETMASK"))
  81                         connman_provider_set_string(provider, "Netmask", value);
  82
  83                 if (!strcmp(key, "INTERNAL_IP4_DNS"))
  84                         connman_provider_set_string(provider, "DNS", value);
  85
  86                 if (!strcmp(key, "CISCO_PROXY_PAC"))
  87                         connman_provider_set_string(provider, "PAC", value);
  88
  89                 if (domain == NULL && !strcmp(key, "CISCO_DEF_DOMAIN"))
  90                         domain = value;
  91
  92                 if (g_str_has_prefix(key, "CISCO_SPLIT_INC") == TRUE ||
  93                         g_str_has_prefix(key, "CISCO_IPV6_SPLIT_INC") == TRUE)
  94                         connman_provider_append_route(provider, key, value);
  95
  96                 dbus_message_iter_next(&dict);
  97         }
  98
  99         connman_provider_set_string(provider, "Domain", domain);
 100
 101         return VPN_STATE_CONNECT;
 102 }
 103
 104 static int oc_connect(struct connman_provider *provider,
 105                         struct connman_task *task, const char *if_name)
 106 {
 107         const char *vpnhost, *vpncookie, *cafile, *certsha1, *mtu;
 108         int fd, err;
 109
 110         vpnhost = connman_provider_get_string(provider, "Host");
 111         if (!vpnhost) {
 112                 connman_error("Host not set; cannot enable VPN");
 113                 return -EINVAL;
 114         }
 115
 116         vpncookie = connman_provider_get_string(provider, "OpenConnect.Cookie");
 117         if (!vpncookie) {
 118                 connman_error("OpenConnect.Cookie not set; cannot enable VPN");
 119                 return -EINVAL;
 120         }
 121
 122         certsha1 = connman_provider_get_string(provider,
 123                                                 "OpenConnect.ServerCert");
 124         if (certsha1)
 125                 connman_task_add_argument(task, "--servercert",
 126                                                         (char *)certsha1);
 127
 128         cafile = connman_provider_get_string(provider, "OpenConnect.CACert");
 129         mtu = connman_provider_get_string(provider, "VPN.MTU");
 130
 131         if (cafile)
 132                 connman_task_add_argument(task, "--cafile",
 133                                                         (char *)cafile);
 134         if (mtu)
 135                 connman_task_add_argument(task, "--mtu", (char *)mtu);
 136
 137         connman_task_add_argument(task, "--syslog", NULL);
 138         connman_task_add_argument(task, "--cookie-on-stdin", NULL);
 139
 140         connman_task_add_argument(task, "--script",
 141                                   SCRIPTDIR "/openconnect-script");
 142
 143         connman_task_add_argument(task, "--interface", if_name);
 144
 145         connman_task_add_argument(task, (char *)vpnhost, NULL);
 146
 147         err = connman_task_run(task, vpn_died, provider,
 148                                &fd, NULL, NULL);
 149         if (err < 0) {
 150                 connman_error("openconnect failed to start");
 151                 return -EIO;
 152         }
 153
 154         if (write(fd, vpncookie, strlen(vpncookie)) !=
 155                         (ssize_t)strlen(vpncookie) ||
 156                         write(fd, "\n", 1) != 1) {
 157                 connman_error("openconnect failed to take cookie on stdin");
 158                 return -EIO;
 159         }
 160
 161         return 0;
 162 }
 163
 164 static int oc_error_code(int exit_code)
 165 {
 166
 167         switch (exit_code) {
 168         case 1:
 169                 return CONNMAN_PROVIDER_ERROR_CONNECT_FAILED;
 170         case 2:
 171                 return CONNMAN_PROVIDER_ERROR_LOGIN_FAILED;
 172         default:
 173                 return CONNMAN_PROVIDER_ERROR_UNKNOWN;
 174         }
 175 }
 176
 177 static struct vpn_driver vpn_driver = {
 178         .notify         = oc_notify,
 179         .connect        = oc_connect,
 180         .error_code     = oc_error_code,
 181 };
 182
 183 static int openconnect_init(void)
 184 {
 185         return vpn_register("openconnect", &vpn_driver, OPENCONNECT);
 186 }
 187
 188 static void openconnect_exit(void)
 189 {
 190         vpn_unregister("openconnect");
 191 }
 192
 193 CONNMAN_PLUGIN_DEFINE(openconnect, "OpenConnect VPN plugin", VERSION,
 194         CONNMAN_PLUGIN_PRIORITY_DEFAULT, openconnect_init, openconnect_exit)