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 #include <net/if.h>
  30
  31 #include <glib.h>
  32
  33 #define CONNMAN_API_SUBJECT_TO_CHANGE
  34 #include <connman/plugin.h>
  35 #include <connman/provider.h>
  36 #include <connman/log.h>
  37 #include <connman/task.h>
  38 #include <connman/ipconfig.h>
  39
  40 #include "vpn.h"
  41
  42 static int oc_notify(DBusMessage *msg, struct connman_provider *provider)
  43 {
  44         DBusMessageIter iter, dict;
  45         const char *reason, *key, *value;
  46         const char *domain = NULL;
  47         char *address = NULL, *netmask = NULL, *gateway = NULL;
  48         struct connman_ipaddress *ipaddress;
  49
  50         dbus_message_iter_init(msg, &iter);
  51
  52         dbus_message_iter_get_basic(&iter, &reason);
  53         dbus_message_iter_next(&iter);
  54
  55         if (!provider) {
  56                 connman_error("No provider found");
  57                 return VPN_STATE_FAILURE;
  58         }
  59
  60         if (strcmp(reason, "connect"))
  61                 return VPN_STATE_DISCONNECT;
  62
  63         domain = connman_provider_get_string(provider, "VPN.Domain");
  64
  65         dbus_message_iter_recurse(&iter, &dict);
  66
  67         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
  68                 DBusMessageIter entry;
  69
  70                 dbus_message_iter_recurse(&dict, &entry);
  71                 dbus_message_iter_get_basic(&entry, &key);
  72                 dbus_message_iter_next(&entry);
  73                 dbus_message_iter_get_basic(&entry, &value);
  74
  75                 if (strcmp(key, "CISCO_CSTP_OPTIONS"))
  76                         DBG("%s = %s", key, value);
  77
  78                 if (!strcmp(key, "VPNGATEWAY"))
  79                         gateway = g_strdup(value);
  80
  81                 if (!strcmp(key, "INTERNAL_IP4_ADDRESS"))
  82                         address = g_strdup(value);
  83
  84                 if (!strcmp(key, "INTERNAL_IP4_NETMASK"))
  85                         netmask = g_strdup(value);
  86
  87                 if (!strcmp(key, "INTERNAL_IP4_DNS"))
  88                         connman_provider_set_nameservers(provider, value);
  89
  90                 if (!strcmp(key, "CISCO_PROXY_PAC"))
  91                         connman_provider_set_pac(provider, value);
  92
  93                 if (domain == NULL && !strcmp(key, "CISCO_DEF_DOMAIN"))
  94                         domain = value;
  95
  96                 if (g_str_has_prefix(key, "CISCO_SPLIT_INC") == TRUE ||
  97                         g_str_has_prefix(key, "CISCO_IPV6_SPLIT_INC") == TRUE)
  98                         connman_provider_append_route(provider, key, value);
  99
 100                 dbus_message_iter_next(&dict);
 101         }
 102
 103         ipaddress = connman_ipaddress_alloc(AF_INET);
 104         if (ipaddress == NULL) {
 105                 g_free(address);
 106                 g_free(netmask);
 107                 g_free(gateway);
 108
 109                 return VPN_STATE_FAILURE;
 110         }
 111
 112         connman_ipaddress_set_ipv4(ipaddress, address, netmask, gateway);
 113         connman_provider_set_ipaddress(provider, ipaddress);
 114         connman_provider_set_domain(provider, domain);
 115
 116         g_free(address);
 117         g_free(netmask);
 118         g_free(gateway);
 119         connman_ipaddress_free(ipaddress);
 120
 121         return VPN_STATE_CONNECT;
 122 }
 123
 124 static int oc_connect(struct connman_provider *provider,
 125                         struct connman_task *task, const char *if_name)
 126 {
 127         const char *vpnhost, *vpncookie, *cafile, *certsha1, *mtu;
 128         int fd, err;
 129
 130         vpnhost = connman_provider_get_string(provider, "Host");
 131         if (!vpnhost) {
 132                 connman_error("Host not set; cannot enable VPN");
 133                 return -EINVAL;
 134         }
 135
 136         vpncookie = connman_provider_get_string(provider, "OpenConnect.Cookie");
 137         if (!vpncookie) {
 138                 connman_error("OpenConnect.Cookie not set; cannot enable VPN");
 139                 return -EINVAL;
 140         }
 141
 142         certsha1 = connman_provider_get_string(provider,
 143                                                 "OpenConnect.ServerCert");
 144         if (certsha1)
 145                 connman_task_add_argument(task, "--servercert",
 146                                                         (char *)certsha1);
 147
 148         cafile = connman_provider_get_string(provider, "OpenConnect.CACert");
 149         mtu = connman_provider_get_string(provider, "VPN.MTU");
 150
 151         if (cafile)
 152                 connman_task_add_argument(task, "--cafile",
 153                                                         (char *)cafile);
 154         if (mtu)
 155                 connman_task_add_argument(task, "--mtu", (char *)mtu);
 156
 157         connman_task_add_argument(task, "--syslog", NULL);
 158         connman_task_add_argument(task, "--cookie-on-stdin", NULL);
 159
 160         connman_task_add_argument(task, "--script",
 161                                   SCRIPTDIR "/openconnect-script");
 162
 163         connman_task_add_argument(task, "--interface", if_name);
 164
 165         connman_task_add_argument(task, (char *)vpnhost, NULL);
 166
 167         err = connman_task_run(task, vpn_died, provider,
 168                                &fd, NULL, NULL);
 169         if (err < 0) {
 170                 connman_error("openconnect failed to start");
 171                 return -EIO;
 172         }
 173
 174         if (write(fd, vpncookie, strlen(vpncookie)) !=
 175                         (ssize_t)strlen(vpncookie) ||
 176                         write(fd, "\n", 1) != 1) {
 177                 connman_error("openconnect failed to take cookie on stdin");
 178                 return -EIO;
 179         }
 180
 181         return 0;
 182 }
 183
 184 static int oc_error_code(int exit_code)
 185 {
 186
 187         switch (exit_code) {
 188         case 1:
 189                 return CONNMAN_PROVIDER_ERROR_CONNECT_FAILED;
 190         case 2:
 191                 return CONNMAN_PROVIDER_ERROR_LOGIN_FAILED;
 192         default:
 193                 return CONNMAN_PROVIDER_ERROR_UNKNOWN;
 194         }
 195 }
 196
 197 static struct vpn_driver vpn_driver = {
 198         .notify         = oc_notify,
 199         .connect        = oc_connect,
 200         .error_code     = oc_error_code,
 201 };
 202
 203 static int openconnect_init(void)
 204 {
 205         return vpn_register("openconnect", &vpn_driver, OPENCONNECT);
 206 }
 207
 208 static void openconnect_exit(void)
 209 {
 210         vpn_unregister("openconnect");
 211 }
 212
 213 CONNMAN_PLUGIN_DEFINE(openconnect, "OpenConnect VPN plugin", VERSION,
 214         CONNMAN_PLUGIN_PRIORITY_DEFAULT, openconnect_init, openconnect_exit)