1 /* 2 * AP mode helper functions 3 * Copyright (c) 2009, Jouni Malinen <j (at) 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 "common/ieee802_11_defs.h" 13 #include "sta_info.h" 14 #include "hostapd.h" 15 16 17 int hostapd_register_probereq_cb(struct hostapd_data *hapd, 18 int (*cb)(void *ctx, const u8 *sa, 19 const u8 *da, const u8 *bssid, 20 const u8 *ie, size_t ie_len), 21 void *ctx) 22 { 23 struct hostapd_probereq_cb *n; 24 25 n = os_realloc(hapd->probereq_cb, (hapd->num_probereq_cb + 1) * 26 sizeof(struct hostapd_probereq_cb)); 27 if (n == NULL) 28 return -1; 29 30 hapd->probereq_cb = n; 31 n = &hapd->probereq_cb[hapd->num_probereq_cb]; 32 hapd->num_probereq_cb++; 33 34 n->cb = cb; 35 n->ctx = ctx; 36 37 return 0; 38 } 39 40 41 struct prune_data { 42 struct hostapd_data *hapd; 43 const u8 *addr; 44 }; 45 46 static int prune_associations(struct hostapd_iface *iface, void *ctx) 47 { 48 struct prune_data *data = ctx; 49 struct sta_info *osta; 50 struct hostapd_data *ohapd; 51 size_t j; 52 53 for (j = 0; j < iface->num_bss; j++) { 54 ohapd = iface->bss[j]; 55 if (ohapd == data->hapd) 56 continue; 57 osta = ap_get_sta(ohapd, data->addr); 58 if (!osta) 59 continue; 60 61 ap_sta_disassociate(ohapd, osta, WLAN_REASON_UNSPECIFIED); 62 } 63 64 return 0; 65 } 66 67 /** 68 * hostapd_prune_associations - Remove extraneous associations 69 * @hapd: Pointer to BSS data for the most recent association 70 * @addr: Associated STA address 71 * 72 * This function looks through all radios and BSS's for previous 73 * (stale) associations of STA. If any are found they are removed. 74 */ 75 void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr) 76 { 77 struct prune_data data; 78 data.hapd = hapd; 79 data.addr = addr; 80 if (hapd->iface->for_each_interface) 81 hapd->iface->for_each_interface(hapd->iface->interfaces, 82 prune_associations, &data); 83 } 84
