src/wispr.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 <errno.h>
  27 #include <stdlib.h>
  28
  29 #include <gweb/gweb.h>
  30
  31 #include "connman.h"
  32
  33 #define STATUS_URL  "http://www.connman.net/online/status.html"
  34
  35 struct connman_wispr_portal_context {
  36         struct connman_service *service;
  37         enum connman_ipconfig_type type;
  38
  39         /* Portal/WISPr common */
  40         GWeb *web;
  41         unsigned int token;
  42 };
  43
  44 struct connman_wispr_portal {
  45         struct connman_wispr_portal_context *ipv4_context;
  46         struct connman_wispr_portal_context *ipv6_context;
  47 };
  48
  49 static GHashTable *wispr_portal_list = NULL;
  50
  51 static void free_connman_wispr_portal_context(struct connman_wispr_portal_context *wp_context)
  52 {
  53         DBG("");
  54
  55         if (wp_context == NULL)
  56                 return;
  57
  58         if (wp_context->token > 0)
  59                 connman_proxy_lookup_cancel(wp_context->token);
  60
  61         g_web_unref(wp_context->web);
  62
  63         g_free(wp_context);
  64 }
  65
  66 static void free_connman_wispr_portal(gpointer data)
  67 {
  68         struct connman_wispr_portal *wispr_portal = data;
  69
  70         DBG("");
  71
  72         if (wispr_portal == NULL)
  73                 return;
  74
  75         free_connman_wispr_portal_context(wispr_portal->ipv4_context);
  76         free_connman_wispr_portal_context(wispr_portal->ipv6_context);
  77
  78         g_free(wispr_portal);
  79 }
  80
  81 static void web_debug(const char *str, void *data)
  82 {
  83         connman_info("%s: %s\n", (const char *) data, str);
  84 }
  85
  86 static void proxy_callback(const char *proxy, void *user_data)
  87 {
  88         struct connman_wispr_portal_context *wp_context = user_data;
  89
  90         DBG("proxy %s", proxy);
  91
  92         wp_context->token = 0;
  93
  94         if (proxy == NULL)
  95                 proxy = getenv("http_proxy");
  96
  97         if (getenv("CONNMAN_WEB_DEBUG"))
  98                 g_web_set_debug(wp_context->web, web_debug, "WEB");
  99
 100         if (proxy != NULL && g_strcmp0(proxy, "DIRECT") != 0)
 101                 g_web_set_proxy(wp_context->web, proxy);
 102
 103         g_web_set_accept(wp_context->web, NULL);
 104         g_web_set_user_agent(wp_context->web, "ConnMan/%s", VERSION);
 105         g_web_set_close_connection(wp_context->web, TRUE);
 106 }
 107
 108 static int wispr_portal_detect(struct connman_wispr_portal_context *wp_context)
 109 {
 110         enum connman_service_type service_type;
 111         char *interface = NULL;
 112         int err = 0;
 113
 114         DBG("wispr/portal context %p", wp_context);
 115         DBG("service %p", wp_context->service);
 116
 117         service_type = connman_service_get_type(wp_context->service);
 118
 119         switch (service_type) {
 120         case CONNMAN_SERVICE_TYPE_ETHERNET:
 121         case CONNMAN_SERVICE_TYPE_WIFI:
 122         case CONNMAN_SERVICE_TYPE_WIMAX:
 123         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 124         case CONNMAN_SERVICE_TYPE_CELLULAR:
 125                 break;
 126         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 127         case CONNMAN_SERVICE_TYPE_SYSTEM:
 128         case CONNMAN_SERVICE_TYPE_GPS:
 129         case CONNMAN_SERVICE_TYPE_VPN:
 130         case CONNMAN_SERVICE_TYPE_GADGET:
 131                 return -EOPNOTSUPP;
 132         }
 133
 134         interface = connman_service_get_interface(wp_context->service);
 135         if (interface == NULL)
 136                 return -EINVAL;
 137
 138         DBG("interface %s", interface);
 139
 140         wp_context->web = g_web_new(0);
 141         if (wp_context->web == NULL) {
 142                 err = -ENOMEM;
 143                 goto done;
 144         }
 145
 146         if (wp_context->type == CONNMAN_IPCONFIG_TYPE_IPV4)
 147                 g_web_set_address_family(wp_context->web, AF_INET);
 148         else
 149                 g_web_set_address_family(wp_context->web, AF_INET6);
 150
 151         wp_context->token = connman_proxy_lookup(interface,
 152                                         STATUS_URL, wp_context->service,
 153                                         proxy_callback, wp_context);
 154         if (wp_context->token == 0)
 155                 err = -EINVAL;
 156
 157 done:
 158         g_free(interface);
 159         return err;
 160 }
 161
 162 int __connman_wispr_start(struct connman_service *service,
 163                                         enum connman_ipconfig_type type)
 164 {
 165         struct connman_wispr_portal_context *wp_context = NULL;
 166         struct connman_wispr_portal *wispr_portal = NULL;
 167         int index;
 168
 169         DBG("service %p", service);
 170
 171         if (wispr_portal_list == NULL)
 172                 return -EINVAL;
 173
 174         index = __connman_service_get_index(service);
 175         if (index < 0)
 176                 return -EINVAL;
 177
 178         wispr_portal = g_hash_table_lookup(wispr_portal_list,
 179                                         GINT_TO_POINTER(index));
 180         if (wispr_portal == NULL) {
 181                 wispr_portal = g_try_new0(struct connman_wispr_portal, 1);
 182                 if (wispr_portal == NULL)
 183                         return -ENOMEM;
 184
 185                 g_hash_table_replace(wispr_portal_list,
 186                                         GINT_TO_POINTER(index), wispr_portal);
 187         }
 188
 189         if (type == CONNMAN_IPCONFIG_TYPE_IPV4)
 190                 wp_context = wispr_portal->ipv4_context;
 191         else if (type == CONNMAN_IPCONFIG_TYPE_IPV6)
 192                 wp_context = wispr_portal->ipv6_context;
 193         else
 194                 return -EINVAL;
 195
 196         if (wp_context == NULL) {
 197                 wp_context = g_try_new0(struct connman_wispr_portal_context, 1);
 198                 if (wp_context == NULL)
 199                         return -ENOMEM;
 200
 201                 wp_context->service = service;
 202                 wp_context->type = type;
 203
 204                 if (type == CONNMAN_IPCONFIG_TYPE_IPV4)
 205                         wispr_portal->ipv4_context = wp_context;
 206                 else
 207                         wispr_portal->ipv6_context = wp_context;
 208
 209                 return wispr_portal_detect(wp_context);
 210         }
 211
 212         return 0;
 213 }
 214
 215 void __connman_wispr_stop(struct connman_service *service)
 216 {
 217         int index;
 218
 219         DBG("service %p", service);
 220
 221         if (wispr_portal_list == NULL)
 222                 return;
 223
 224         index = __connman_service_get_index(service);
 225         if (index < 0)
 226                 return;
 227
 228         g_hash_table_remove(wispr_portal_list, GINT_TO_POINTER(index));
 229 }
 230
 231 int __connman_wispr_init(void)
 232 {
 233         DBG("");
 234
 235         wispr_portal_list = g_hash_table_new_full(g_direct_hash,
 236                                                 g_direct_equal, NULL,
 237                                                 free_connman_wispr_portal);
 238
 239         return 0;
 240 }
 241
 242 void __connman_wispr_cleanup(void)
 243 {
 244         DBG("");
 245
 246         g_hash_table_destroy(wispr_portal_list);
 247         wispr_portal_list = NULL;
 248 }