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 software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10
  11 #include "common.h"
  12 #include "eloop.h"
  13 #include "uuid.h"
  14 #include "wps_i.h"
  15 #include "wps_upnp.h"
  16 #include "wps_upnp_i.h"
  17
  18
  19 static void upnp_er_set_selected_timeout(void *eloop_ctx, void *timeout_ctx)
  20 {
  21         struct subscription *s = eloop_ctx;
  22         struct wps_registrar *reg = timeout_ctx;
  23         wpa_printf(MSG_DEBUG, "WPS: SetSelectedRegistrar from ER timed out");
  24         s->selected_registrar = 0;
  25         wps_registrar_selected_registrar_changed(reg);
  26 }
  27
  28
  29 int upnp_er_set_selected_registrar(struct wps_registrar *reg,
  30                                    struct subscription *s,
  31                                    const struct wpabuf *msg)
  32 {
  33         struct wps_parse_attr attr;
  34
  35         wpa_hexdump_buf(MSG_MSGDUMP, "WPS: SetSelectedRegistrar attributes",
  36                         msg);
  37         if (wps_validate_upnp_set_selected_registrar(msg) < 0)
  38                 return -1;
  39
  40         if (wps_parse_msg(msg, &attr) < 0)
  41                 return -1;
  42
  43         s->reg = reg;
  44         eloop_cancel_timeout(upnp_er_set_selected_timeout, s, reg);
  45
  46         os_memset(s->authorized_macs, 0, sizeof(s->authorized_macs));
  47         if (attr.selected_registrar == NULL || *attr.selected_registrar == 0) {
  48                 wpa_printf(MSG_DEBUG, "WPS: SetSelectedRegistrar: Disable "
  49                            "Selected Registrar");
  50                 s->selected_registrar = 0;
  51         } else {
  52                 s->selected_registrar = 1;
  53                 s->dev_password_id = attr.dev_password_id ?
  54                         WPA_GET_BE16(attr.dev_password_id) : DEV_PW_DEFAULT;
  55                 s->config_methods = attr.sel_reg_config_methods ?
  56                         WPA_GET_BE16(attr.sel_reg_config_methods) : -1;
  57                 if (attr.authorized_macs) {
  58                         int count = attr.authorized_macs_len / ETH_ALEN;
  59                         if (count > WPS_MAX_AUTHORIZED_MACS)
  60                                 count = WPS_MAX_AUTHORIZED_MACS;
  61                         os_memcpy(s->authorized_macs, attr.authorized_macs,
  62                                   count * ETH_ALEN);
  63                 } else if (!attr.version2) {
  64 #ifdef CONFIG_WPS2
  65                         wpa_printf(MSG_DEBUG, "WPS: Add broadcast "
  66                                    "AuthorizedMACs for WPS 1.0 ER");
  67                         os_memset(s->authorized_macs, 0xff, ETH_ALEN);
  68 #endif /* CONFIG_WPS2 */
  69                 }
  70                 eloop_register_timeout(WPS_PBC_WALK_TIME, 0,
  71                                        upnp_er_set_selected_timeout, s, reg);
  72         }
  73
  74         wps_registrar_selected_registrar_changed(reg);
  75
  76         return 0;
  77 }
  78
  79
  80 void upnp_er_remove_notification(struct wps_registrar *reg,
  81                                  struct subscription *s)
  82 {
  83         s->selected_registrar = 0;
  84         eloop_cancel_timeout(upnp_er_set_selected_timeout, s, reg);
  85         if (reg)
  86                 wps_registrar_selected_registrar_changed(reg);
  87 }