src/wpad.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 <stdlib.h>
  27
  28 #include <gresolv/gresolv.h>
  29
  30 #include "connman.h"
  31
  32 struct connman_wpad {
  33         struct connman_service *service;
  34         GResolv *resolv;
  35         char *hostname;
  36 };
  37
  38 static GHashTable *wpad_list = NULL;
  39
  40 static void resolv_debug(const char *str, void *data)
  41 {
  42         connman_info("%s: %s\n", (const char *) data, str);
  43 }
  44
  45 static void free_wpad(gpointer data)
  46 {
  47         struct connman_wpad *wpad = data;
  48
  49         g_resolv_unref(wpad->resolv);
  50
  51         g_free(wpad->hostname);
  52         g_free(wpad);
  53 }
  54
  55 static void wpad_result(GResolvResultStatus status,
  56                                         char **results, gpointer user_data)
  57 {
  58         struct connman_wpad *wpad = user_data;
  59
  60         DBG("status %d", status);
  61
  62         if (status == G_RESOLV_RESULT_STATUS_SUCCESS)
  63                 connman_info("PAC: http://%s/wpad.dat", wpad->hostname);
  64 }
  65
  66 void __connman_wpad_start(struct connman_service *service)
  67 {
  68         struct connman_wpad *wpad;
  69         const char *domainname, *nameserver;
  70         int index;
  71
  72         DBG("service %p", service);
  73
  74         if (wpad_list == NULL)
  75                 return;
  76
  77         index = __connman_service_get_index(service);
  78         if (index < 0)
  79                 return;
  80
  81         domainname = __connman_service_get_domainname(service);
  82         if (domainname == NULL)
  83                 return;
  84
  85         nameserver = __connman_service_get_nameserver(service);
  86         if (nameserver == NULL)
  87                 return;
  88
  89         wpad = g_try_new0(struct connman_wpad, 1);
  90         if (wpad == NULL)
  91                 return;
  92
  93         wpad->service = service;
  94         wpad->resolv = g_resolv_new(index);
  95         if (wpad->resolv == NULL) {
  96                 g_free(wpad);
  97                 return;
  98         }
  99
 100         if (getenv("CONNMAN_RESOLV_DEBUG"))
 101                 g_resolv_set_debug(wpad->resolv, resolv_debug, "RESOLV");
 102
 103         g_resolv_add_nameserver(wpad->resolv, nameserver, 53, 0);
 104
 105         wpad->hostname = g_strdup_printf("wpad.%s", domainname);
 106
 107         g_resolv_lookup_hostname(wpad->resolv, wpad->hostname,
 108                                                         wpad_result, wpad);
 109
 110         g_hash_table_insert(wpad_list, GINT_TO_POINTER(index), wpad);
 111 }
 112
 113 void __connman_wpad_stop(struct connman_service *service)
 114 {
 115         int index;
 116
 117         DBG("service %p", service);
 118
 119         if (wpad_list == NULL)
 120                 return;
 121
 122         index = __connman_service_get_index(service);
 123         if (index < 0)
 124                 return;
 125
 126         g_hash_table_remove(wpad_list, GINT_TO_POINTER(index));
 127 }
 128
 129 int __connman_wpad_init(void)
 130 {
 131         DBG("");
 132
 133         wpad_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
 134                                                         NULL, free_wpad);
 135
 136         return 0;
 137 }
 138
 139 void __connman_wpad_cleanup(void)
 140 {
 141         DBG("");
 142
 143         g_hash_table_destroy(wpad_list);
 144         wpad_list = NULL;
 145 }