Disconnect hostapd from building in base
[dragonfly.git] / contrib / hostapd / src / ap / utils.c
1 /*
2  * AP mode helper functions
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 "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                                            int ssi_signal),
22                                  void *ctx)
23 {
24         struct hostapd_probereq_cb *n;
25
26         n = os_realloc_array(hapd->probereq_cb, hapd->num_probereq_cb + 1,
27                              sizeof(struct hostapd_probereq_cb));
28         if (n == NULL)
29                 return -1;
30
31         hapd->probereq_cb = n;
32         n = &hapd->probereq_cb[hapd->num_probereq_cb];
33         hapd->num_probereq_cb++;
34
35         n->cb = cb;
36         n->ctx = ctx;
37
38         return 0;
39 }
40
41
42 struct prune_data {
43         struct hostapd_data *hapd;
44         const u8 *addr;
45 };
46
47 static int prune_associations(struct hostapd_iface *iface, void *ctx)
48 {
49         struct prune_data *data = ctx;
50         struct sta_info *osta;
51         struct hostapd_data *ohapd;
52         size_t j;
53
54         for (j = 0; j < iface->num_bss; j++) {
55                 ohapd = iface->bss[j];
56                 if (ohapd == data->hapd)
57                         continue;
58                 osta = ap_get_sta(ohapd, data->addr);
59                 if (!osta)
60                         continue;
61
62                 ap_sta_disassociate(ohapd, osta, WLAN_REASON_UNSPECIFIED);
63         }
64
65         return 0;
66 }
67
68 /**
69  * hostapd_prune_associations - Remove extraneous associations
70  * @hapd: Pointer to BSS data for the most recent association
71  * @addr: Associated STA address
72  *
73  * This function looks through all radios and BSS's for previous
74  * (stale) associations of STA. If any are found they are removed.
75  */
76 void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr)
77 {
78         struct prune_data data;
79         data.hapd = hapd;
80         data.addr = addr;
81         if (hapd->iface->interfaces &&
82             hapd->iface->interfaces->for_each_interface)
83                 hapd->iface->interfaces->for_each_interface(
84                         hapd->iface->interfaces, prune_associations, &data);
85 }