src/wps/wps_upnp_ap.c

   1 /*
   2  * Wi-Fi Protected Setup - UPnP AP functionality
   3  * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "includes.h"
  16
  17 #include "common.h"
  18 #include "eloop.h"
  19 #include "uuid.h"
  20 #include "wps_i.h"
  21 #include "wps_upnp.h"
  22 #include "wps_upnp_i.h"
  23
  24
  25 static void upnp_er_set_selected_timeout(void *eloop_ctx, void *timeout_ctx)
  26 {
  27         struct subscription *s = eloop_ctx;
  28         wpa_printf(MSG_DEBUG, "WPS: SetSelectedRegistrar from ER timed out");
  29         s->selected_registrar = 0;
  30         wps_registrar_selected_registrar_changed(s->reg);
  31 }
  32
  33
  34 int upnp_er_set_selected_registrar(struct wps_registrar *reg,
  35                                    struct subscription *s,
  36                                    const struct wpabuf *msg)
  37 {
  38         struct wps_parse_attr attr;
  39
  40         wpa_hexdump_buf(MSG_MSGDUMP, "WPS: SetSelectedRegistrar attributes",
  41                         msg);
  42
  43         if (wps_parse_msg(msg, &attr) < 0)
  44                 return -1;
  45         if (!wps_version_supported(attr.version)) {
  46                 wpa_printf(MSG_DEBUG, "WPS: Unsupported SetSelectedRegistrar "
  47                            "version 0x%x", attr.version ? *attr.version : 0);
  48                 return -1;
  49         }
  50
  51         s->reg = reg;
  52         eloop_cancel_timeout(upnp_er_set_selected_timeout, s, NULL);
  53
  54         if (attr.selected_registrar == NULL || *attr.selected_registrar == 0) {
  55                 wpa_printf(MSG_DEBUG, "WPS: SetSelectedRegistrar: Disable "
  56                            "Selected Registrar");
  57                 s->selected_registrar = 0;
  58         } else {
  59                 s->selected_registrar = 1;
  60                 s->dev_password_id = attr.dev_password_id ?
  61                         WPA_GET_BE16(attr.dev_password_id) : DEV_PW_DEFAULT;
  62                 s->config_methods = attr.sel_reg_config_methods ?
  63                         WPA_GET_BE16(attr.sel_reg_config_methods) : -1;
  64                 eloop_register_timeout(WPS_PBC_WALK_TIME, 0,
  65                                        upnp_er_set_selected_timeout, s, NULL);
  66         }
  67
  68         wps_registrar_selected_registrar_changed(reg);
  69
  70         return 0;
  71 }
  72
  73
  74 void upnp_er_remove_notification(struct subscription *s)
  75 {
  76         s->selected_registrar = 0;
  77         eloop_cancel_timeout(upnp_er_set_selected_timeout, s, NULL);
  78         if (s->reg)
  79                 wps_registrar_selected_registrar_changed(s->reg);
  80 }