wpa_supplicant/dbus/dbus_handlers_wps.c

   1 /*
   2  * WPA Supplicant / dbus-based control interface (WPS)
   3  * Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
   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 "../config.h"
  19 #include "../wpa_supplicant_i.h"
  20 #include "../wps_supplicant.h"
  21 #include "ctrl_iface_dbus.h"
  22 #include "ctrl_iface_dbus_handlers.h"
  23
  24 /**
  25  * wpas_dbus_iface_wps_pbc - Request credentials using WPS PBC method
  26  * @message: Pointer to incoming dbus message
  27  * @wpa_s: %wpa_supplicant data structure
  28  * Returns: A dbus message containing a UINT32 indicating success (1) or
  29  *          failure (0)
  30  *
  31  * Handler function for "wpsPbc" method call
  32  */
  33 DBusMessage * wpas_dbus_iface_wps_pbc(DBusMessage *message,
  34                                       struct wpa_supplicant *wpa_s)
  35 {
  36         char *arg_bssid = NULL;
  37         u8 bssid[ETH_ALEN];
  38         int ret = 0;
  39
  40         if (!dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &arg_bssid,
  41                                    DBUS_TYPE_INVALID))
  42                 return wpas_dbus_new_invalid_opts_error(message, NULL);
  43
  44         if (!os_strcmp(arg_bssid, "any"))
  45                 ret = wpas_wps_start_pbc(wpa_s, NULL);
  46         else if (!hwaddr_aton(arg_bssid, bssid))
  47                 ret = wpas_wps_start_pbc(wpa_s, bssid);
  48         else {
  49                 return wpas_dbus_new_invalid_opts_error(message,
  50                                                         "Invalid BSSID");
  51         }
  52
  53         if (ret < 0) {
  54                 return dbus_message_new_error(message,
  55                                               WPAS_ERROR_WPS_PBC_ERROR,
  56                                               "Could not start PBC "
  57                                               "negotiation");
  58         }
  59
  60         return wpas_dbus_new_success_reply(message);
  61 }
  62
  63
  64 /**
  65  * wpas_dbus_iface_wps_pin - Establish the PIN number of the enrollee
  66  * @message: Pointer to incoming dbus message
  67  * @wpa_s: %wpa_supplicant data structure
  68  * Returns: A dbus message containing a UINT32 indicating success (1) or
  69  *          failure (0)
  70  *
  71  * Handler function for "wpsPin" method call
  72  */
  73 DBusMessage * wpas_dbus_iface_wps_pin(DBusMessage *message,
  74                                       struct wpa_supplicant *wpa_s)
  75 {
  76         DBusMessage *reply = NULL;
  77         char *arg_bssid;
  78         char *pin = NULL;
  79         u8 bssid[ETH_ALEN], *_bssid = NULL;
  80         int ret = 0;
  81
  82         if (!dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &arg_bssid,
  83                                    DBUS_TYPE_STRING, &pin, DBUS_TYPE_INVALID))
  84                 return wpas_dbus_new_invalid_opts_error(message, NULL);
  85
  86         if (!os_strcmp(arg_bssid, "any"))
  87                 _bssid = NULL;
  88         else if (!hwaddr_aton(arg_bssid, bssid))
  89                 _bssid = bssid;
  90         else {
  91                 return wpas_dbus_new_invalid_opts_error(message,
  92                                                         "Invalid BSSID");
  93         }
  94
  95         if (os_strlen(pin) > 0)
  96                 ret = wpas_wps_start_pin(wpa_s, _bssid, pin);
  97         else
  98                 ret = wpas_wps_start_pin(wpa_s, _bssid, NULL);
  99
 100         if (ret < 0) {
 101                 return dbus_message_new_error(message,
 102                                               WPAS_ERROR_WPS_PIN_ERROR,
 103                                               "Could not init PIN");
 104         }
 105
 106         reply = dbus_message_new_method_return(message);
 107         if (reply == NULL)
 108                 return NULL;
 109
 110         if (ret == 0) {
 111                 dbus_message_append_args(reply, DBUS_TYPE_STRING, &pin,
 112                                          DBUS_TYPE_INVALID);
 113         } else {
 114                 char npin[9];
 115                 os_snprintf(npin, sizeof(npin), "%08d", ret);
 116                 dbus_message_append_args(reply, DBUS_TYPE_STRING, &npin,
 117                                          DBUS_TYPE_INVALID);
 118         }
 119         return reply;
 120 }
 121
 122
 123 /**
 124  * wpas_dbus_iface_wps_reg - Request credentials using the PIN of the AP
 125  * @message: Pointer to incoming dbus message
 126  * @wpa_s: %wpa_supplicant data structure
 127  * Returns: A dbus message containing a UINT32 indicating success (1) or
 128  *          failure (0)
 129  *
 130  * Handler function for "wpsReg" method call
 131  */
 132 DBusMessage * wpas_dbus_iface_wps_reg(DBusMessage *message,
 133                                       struct wpa_supplicant *wpa_s)
 134 {
 135         char *arg_bssid;
 136         char *pin = NULL;
 137         u8 bssid[ETH_ALEN];
 138         int ret = 0;
 139
 140         if (!dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &arg_bssid,
 141                                    DBUS_TYPE_STRING, &pin, DBUS_TYPE_INVALID))
 142                 return wpas_dbus_new_invalid_opts_error(message, NULL);
 143
 144         if (!os_strcmp(arg_bssid, "any"))
 145                 ret = wpas_wps_start_reg(wpa_s, NULL, pin, NULL);
 146         else if (!hwaddr_aton(arg_bssid, bssid))
 147                 ret = wpas_wps_start_reg(wpa_s, bssid, pin, NULL);
 148         else {
 149                 return wpas_dbus_new_invalid_opts_error(message,
 150                                                         "Invalid BSSID");
 151         }
 152
 153         if (ret < 0) {
 154                 return dbus_message_new_error(message,
 155                                               WPAS_ERROR_WPS_PBC_ERROR,
 156                                               "Could not request credentials");
 157         }
 158
 159         return wpas_dbus_new_success_reply(message);
 160 }