wpa_supplicant_node: utils.c Source File

00001 /*
00002  * AP mode helper functions
00003  * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License version 2 as
00007  * published by the Free Software Foundation.
00008  *
00009  * Alternatively, this software may be distributed under the terms of BSD
00010  * license.
00011  *
00012  * See README and COPYING for more details.
00013  */
00014 
00015 #include "includes.h"
00016 
00017 #include "common.h"
00018 #include "common/ieee802_11_defs.h"
00019 #include "sta_info.h"
00020 #include "hostapd.h"
00021 
00022 
00023 int hostapd_register_probereq_cb(struct hostapd_data *hapd,
00024                                  int (*cb)(void *ctx, const u8 *sa,
00025                                            const u8 *ie, size_t ie_len),
00026                                  void *ctx)
00027 {
00028         struct hostapd_probereq_cb *n;
00029 
00030         n = os_realloc(hapd->probereq_cb, (hapd->num_probereq_cb + 1) *
00031                        sizeof(struct hostapd_probereq_cb));
00032         if (n == NULL)
00033                 return -1;
00034 
00035         hapd->probereq_cb = n;
00036         n = &hapd->probereq_cb[hapd->num_probereq_cb];
00037         hapd->num_probereq_cb++;
00038 
00039         n->cb = cb;
00040         n->ctx = ctx;
00041 
00042         return 0;
00043 }
00044 
00045 
00046 struct prune_data {
00047         struct hostapd_data *hapd;
00048         const u8 *addr;
00049 };
00050 
00051 static int prune_associations(struct hostapd_iface *iface, void *ctx)
00052 {
00053         struct prune_data *data = ctx;
00054         struct sta_info *osta;
00055         struct hostapd_data *ohapd;
00056         size_t j;
00057 
00058         for (j = 0; j < iface->num_bss; j++) {
00059                 ohapd = iface->bss[j];
00060                 if (ohapd == data->hapd)
00061                         continue;
00062                 osta = ap_get_sta(ohapd, data->addr);
00063                 if (!osta)
00064                         continue;
00065 
00066                 ap_sta_disassociate(ohapd, osta, WLAN_REASON_UNSPECIFIED);
00067         }
00068 
00069         return 0;
00070 }
00071 
00080 void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr)
00081 {
00082         struct prune_data data;
00083         data.hapd = hapd;
00084         data.addr = addr;
00085         if (hapd->iface->for_each_interface)
00086                 hapd->iface->for_each_interface(hapd->iface->interfaces,
00087                                                 prune_associations, &data);
00088 }