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
  46         s->reg = reg;
  47         eloop_cancel_timeout(upnp_er_set_selected_timeout, s, NULL);
  48
  49         os_memset(s->authorized_macs, 0, sizeof(s->authorized_macs));
  50         if (attr.selected_registrar == NULL || *attr.selected_registrar == 0) {
  51                 wpa_printf(MSG_DEBUG, "WPS: SetSelectedRegistrar: Disable "
  52                            "Selected Registrar");
  53                 s->selected_registrar = 0;
  54         } else {
  55                 s->selected_registrar = 1;
  56                 s->dev_password_id = attr.dev_password_id ?
  57                         WPA_GET_BE16(attr.dev_password_id) : DEV_PW_DEFAULT;
  58                 s->config_methods = attr.sel_reg_config_methods ?
  59                         WPA_GET_BE16(attr.sel_reg_config_methods) : -1;
  60                 if (attr.authorized_macs) {
  61                         int count = attr.authorized_macs_len / ETH_ALEN;
  62                         if (count > WPS_MAX_AUTHORIZED_MACS)
  63                                 count = WPS_MAX_AUTHORIZED_MACS;
  64                         os_memcpy(s->authorized_macs, attr.authorized_macs,
  65                                   count * ETH_ALEN);
  66                 }
  67                 eloop_register_timeout(WPS_PBC_WALK_TIME, 0,
  68                                        upnp_er_set_selected_timeout, s, NULL);
  69         }
  70
  71         wps_registrar_selected_registrar_changed(reg);
  72
  73         return 0;
  74 }
  75
  76
  77 void upnp_er_remove_notification(struct subscription *s)
  78 {
  79         s->selected_registrar = 0;
  80         eloop_cancel_timeout(upnp_er_set_selected_timeout, s, NULL);
  81         if (s->reg)
  82                 wps_registrar_selected_registrar_changed(s->reg);
  83 }