3 * Copyright (c) 2010, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
9 #include "utils/includes.h"
11 #include "utils/common.h"
12 #include "common/defs.h"
13 #include "common/ieee802_11_defs.h"
14 #include "common/ieee802_11_common.h"
15 #include "crypto/sha1.h"
19 struct wlantest_bss * bss_find(struct wlantest *wt, const u8 *bssid)
21 struct wlantest_bss *bss;
23 dl_list_for_each(bss, &wt->bss, struct wlantest_bss, list) {
24 if (os_memcmp(bss->bssid, bssid, ETH_ALEN) == 0)
32 struct wlantest_bss * bss_get(struct wlantest *wt, const u8 *bssid)
34 struct wlantest_bss *bss;
37 return NULL; /* Skip group addressed frames */
39 bss = bss_find(wt, bssid);
43 bss = os_zalloc(sizeof(*bss));
46 dl_list_init(&bss->sta);
47 dl_list_init(&bss->pmk);
48 dl_list_init(&bss->tdls);
49 os_memcpy(bss->bssid, bssid, ETH_ALEN);
50 dl_list_add(&wt->bss, &bss->list);
51 wpa_printf(MSG_DEBUG, "Discovered new BSS - " MACSTR,
57 void pmk_deinit(struct wlantest_pmk *pmk)
59 dl_list_del(&pmk->list);
64 void tdls_deinit(struct wlantest_tdls *tdls)
66 dl_list_del(&tdls->list);
71 void bss_deinit(struct wlantest_bss *bss)
73 struct wlantest_sta *sta, *n;
74 struct wlantest_pmk *pmk, *np;
75 struct wlantest_tdls *tdls, *nt;
76 dl_list_for_each_safe(sta, n, &bss->sta, struct wlantest_sta, list)
78 dl_list_for_each_safe(pmk, np, &bss->pmk, struct wlantest_pmk, list)
80 dl_list_for_each_safe(tdls, nt, &bss->tdls, struct wlantest_tdls, list)
82 dl_list_del(&bss->list);
87 int bss_add_pmk_from_passphrase(struct wlantest_bss *bss,
88 const char *passphrase)
90 struct wlantest_pmk *pmk;
92 pmk = os_zalloc(sizeof(*pmk));
95 if (pbkdf2_sha1(passphrase, (char *) bss->ssid, bss->ssid_len, 4096,
96 pmk->pmk, sizeof(pmk->pmk)) < 0) {
101 wpa_printf(MSG_INFO, "Add possible PMK for BSSID " MACSTR
102 " based on passphrase '%s'",
103 MAC2STR(bss->bssid), passphrase);
104 wpa_hexdump(MSG_DEBUG, "Possible PMK", pmk->pmk, sizeof(pmk->pmk));
105 dl_list_add(&bss->pmk, &pmk->list);
111 static void bss_add_pmk(struct wlantest *wt, struct wlantest_bss *bss)
113 struct wlantest_passphrase *p;
115 dl_list_for_each(p, &wt->passphrase, struct wlantest_passphrase, list)
117 if (!is_zero_ether_addr(p->bssid) &&
118 os_memcmp(p->bssid, bss->bssid, ETH_ALEN) != 0)
121 (p->ssid_len != bss->ssid_len ||
122 os_memcmp(p->ssid, bss->ssid, p->ssid_len) != 0))
125 if (bss_add_pmk_from_passphrase(bss, p->passphrase) < 0)
131 void bss_update(struct wlantest *wt, struct wlantest_bss *bss,
132 struct ieee802_11_elems *elems)
134 struct wpa_ie_data data;
137 if (bss->capab_info != bss->prev_capab_info)
140 if (elems->ssid == NULL || elems->ssid_len > 32) {
141 wpa_printf(MSG_INFO, "Invalid or missing SSID in a Beacon "
142 "frame for " MACSTR, MAC2STR(bss->bssid));
143 bss->parse_error_reported = 1;
147 if (bss->ssid_len != elems->ssid_len ||
148 os_memcmp(bss->ssid, elems->ssid, bss->ssid_len) != 0) {
149 wpa_printf(MSG_DEBUG, "Store SSID '%s' for BSSID " MACSTR,
150 wpa_ssid_txt(elems->ssid, elems->ssid_len),
151 MAC2STR(bss->bssid));
152 os_memcpy(bss->ssid, elems->ssid, elems->ssid_len);
153 bss->ssid_len = elems->ssid_len;
154 bss_add_pmk(wt, bss);
158 if (elems->rsn_ie == NULL) {
160 wpa_printf(MSG_INFO, "BSS " MACSTR " - RSN IE removed",
161 MAC2STR(bss->bssid));
166 if (bss->rsnie[0] == 0 ||
167 os_memcmp(bss->rsnie, elems->rsn_ie - 2,
168 elems->rsn_ie_len + 2) != 0) {
169 wpa_printf(MSG_INFO, "BSS " MACSTR " - RSN IE "
170 "stored", MAC2STR(bss->bssid));
171 wpa_hexdump(MSG_DEBUG, "RSN IE", elems->rsn_ie - 2,
172 elems->rsn_ie_len + 2);
175 os_memcpy(bss->rsnie, elems->rsn_ie - 2,
176 elems->rsn_ie_len + 2);
179 if (elems->wpa_ie == NULL) {
181 wpa_printf(MSG_INFO, "BSS " MACSTR " - WPA IE removed",
182 MAC2STR(bss->bssid));
187 if (bss->wpaie[0] == 0 ||
188 os_memcmp(bss->wpaie, elems->wpa_ie - 2,
189 elems->wpa_ie_len + 2) != 0) {
190 wpa_printf(MSG_INFO, "BSS " MACSTR " - WPA IE "
191 "stored", MAC2STR(bss->bssid));
192 wpa_hexdump(MSG_DEBUG, "WPA IE", elems->wpa_ie - 2,
193 elems->wpa_ie_len + 2);
196 os_memcpy(bss->wpaie, elems->wpa_ie - 2,
197 elems->wpa_ie_len + 2);
203 bss->prev_capab_info = bss->capab_info;
205 bss->pairwise_cipher = 0;
206 bss->group_cipher = 0;
209 bss->mgmt_group_cipher = 0;
212 if (wpa_parse_wpa_ie_wpa(bss->wpaie, 2 + bss->wpaie[1], &data)
214 wpa_printf(MSG_INFO, "Failed to parse WPA IE from "
215 MACSTR, MAC2STR(bss->bssid));
217 bss->proto |= data.proto;
218 bss->pairwise_cipher |= data.pairwise_cipher;
219 bss->group_cipher |= data.group_cipher;
220 bss->key_mgmt |= data.key_mgmt;
221 bss->rsn_capab = data.capabilities;
222 bss->mgmt_group_cipher |= data.mgmt_group_cipher;
227 if (wpa_parse_wpa_ie_rsn(bss->rsnie, 2 + bss->rsnie[1], &data)
229 wpa_printf(MSG_INFO, "Failed to parse RSN IE from "
230 MACSTR, MAC2STR(bss->bssid));
232 bss->proto |= data.proto;
233 bss->pairwise_cipher |= data.pairwise_cipher;
234 bss->group_cipher |= data.group_cipher;
235 bss->key_mgmt |= data.key_mgmt;
236 bss->rsn_capab = data.capabilities;
237 bss->mgmt_group_cipher |= data.mgmt_group_cipher;
241 if (!(bss->proto & WPA_PROTO_RSN) ||
242 !(bss->rsn_capab & WPA_CAPABILITY_MFPC))
243 bss->mgmt_group_cipher = 0;
245 if (!bss->wpaie[0] && !bss->rsnie[0] &&
246 (bss->capab_info & WLAN_CAPABILITY_PRIVACY))
247 bss->group_cipher = WPA_CIPHER_WEP40;
249 wpa_printf(MSG_INFO, "BSS " MACSTR
253 "mgmt_group_cipher=%s"
254 "key_mgmt=%s%s%s%s%s%s%s%s"
255 "rsn_capab=%s%s%s%s%s",
257 bss->proto == 0 ? "OPEN " : "",
258 bss->proto & WPA_PROTO_WPA ? "WPA " : "",
259 bss->proto & WPA_PROTO_RSN ? "WPA2 " : "",
260 bss->pairwise_cipher == 0 ? "N/A " : "",
261 bss->pairwise_cipher & WPA_CIPHER_NONE ? "NONE " : "",
262 bss->pairwise_cipher & WPA_CIPHER_TKIP ? "TKIP " : "",
263 bss->pairwise_cipher & WPA_CIPHER_CCMP ? "CCMP " : "",
264 bss->group_cipher == 0 ? "N/A " : "",
265 bss->group_cipher & WPA_CIPHER_NONE ? "NONE " : "",
266 bss->group_cipher & WPA_CIPHER_WEP40 ? "WEP40 " : "",
267 bss->group_cipher & WPA_CIPHER_WEP104 ? "WEP104 " : "",
268 bss->group_cipher & WPA_CIPHER_TKIP ? "TKIP " : "",
269 bss->group_cipher & WPA_CIPHER_CCMP ? "CCMP " : "",
270 bss->mgmt_group_cipher & WPA_CIPHER_AES_128_CMAC ? "BIP " :
272 bss->key_mgmt == 0 ? "N/A " : "",
273 bss->key_mgmt & WPA_KEY_MGMT_IEEE8021X ? "EAP " : "",
274 bss->key_mgmt & WPA_KEY_MGMT_PSK ? "PSK " : "",
275 bss->key_mgmt & WPA_KEY_MGMT_WPA_NONE ? "WPA-NONE " : "",
276 bss->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X ? "FT-EAP " : "",
277 bss->key_mgmt & WPA_KEY_MGMT_FT_PSK ? "FT-PSK " : "",
278 bss->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256 ?
280 bss->key_mgmt & WPA_KEY_MGMT_PSK_SHA256 ?
282 bss->rsn_capab & WPA_CAPABILITY_PREAUTH ? "PREAUTH " : "",
283 bss->rsn_capab & WPA_CAPABILITY_NO_PAIRWISE ?
285 bss->rsn_capab & WPA_CAPABILITY_MFPR ? "MFPR " : "",
286 bss->rsn_capab & WPA_CAPABILITY_MFPC ? "MFPC " : "",
287 bss->rsn_capab & WPA_CAPABILITY_PEERKEY_ENABLED ?
292 void bss_flush(struct wlantest *wt)
294 struct wlantest_bss *bss, *n;
295 dl_list_for_each_safe(bss, n, &wt->bss, struct wlantest_bss, list)