1 /*
2 * STA list
3 * Copyright (c) 2010-2015, 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 "utils/includes.h"
10
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 "wlantest.h"
16
17
sta_find(struct wlantest_bss * bss,const u8 * addr)18 struct wlantest_sta * sta_find(struct wlantest_bss *bss, const u8 *addr)
19 {
20 struct wlantest_sta *sta;
21
22 dl_list_for_each(sta, &bss->sta, struct wlantest_sta, list) {
23 if (os_memcmp(sta->addr, addr, ETH_ALEN) == 0)
24 return sta;
25 }
26
27 return NULL;
28 }
29
30
sta_get(struct wlantest_bss * bss,const u8 * addr)31 struct wlantest_sta * sta_get(struct wlantest_bss *bss, const u8 *addr)
32 {
33 struct wlantest_sta *sta;
34
35 if (addr[0] & 0x01)
36 return NULL; /* Skip group addressed frames */
37
38 sta = sta_find(bss, addr);
39 if (sta)
40 return sta;
41
42 sta = os_zalloc(sizeof(*sta));
43 if (sta == NULL)
44 return NULL;
45 os_memset(sta->seq_ctrl_to_sta, 0xff, sizeof(sta->seq_ctrl_to_sta));
46 os_memset(sta->seq_ctrl_to_ap, 0xff, sizeof(sta->seq_ctrl_to_ap));
47 sta->bss = bss;
48 os_memcpy(sta->addr, addr, ETH_ALEN);
49 dl_list_add(&bss->sta, &sta->list);
50 wpa_printf(MSG_DEBUG, "Discovered new STA " MACSTR " in BSS " MACSTR,
51 MAC2STR(sta->addr), MAC2STR(bss->bssid));
52 return sta;
53 }
54
55
sta_deinit(struct wlantest_sta * sta)56 void sta_deinit(struct wlantest_sta *sta)
57 {
58 dl_list_del(&sta->list);
59 os_free(sta->assocreq_ies);
60 os_free(sta);
61 }
62
63
sta_update_assoc(struct wlantest_sta * sta,struct ieee802_11_elems * elems)64 void sta_update_assoc(struct wlantest_sta *sta, struct ieee802_11_elems *elems)
65 {
66 struct wpa_ie_data data;
67 struct wlantest_bss *bss = sta->bss;
68
69 if (elems->wpa_ie && !bss->wpaie[0] &&
70 (bss->beacon_seen || bss->proberesp_seen)) {
71 wpa_printf(MSG_INFO, "WPA IE included in Association Request "
72 "frame from " MACSTR " even though BSS does not "
73 "use WPA - ignore IE",
74 MAC2STR(sta->addr));
75 elems->wpa_ie = NULL;
76 }
77
78 if (elems->rsn_ie && !bss->rsnie[0] &&
79 (bss->beacon_seen || bss->proberesp_seen)) {
80 wpa_printf(MSG_INFO, "RSN IE included in Association Request "
81 "frame from " MACSTR " even though BSS does not "
82 "use RSN - ignore IE",
83 MAC2STR(sta->addr));
84 elems->rsn_ie = NULL;
85 }
86
87 if (elems->osen && !bss->osenie[0] &&
88 (bss->beacon_seen || bss->proberesp_seen)) {
89 wpa_printf(MSG_INFO, "OSEN IE included in Association Request "
90 "frame from " MACSTR " even though BSS does not "
91 "use OSEN - ignore IE",
92 MAC2STR(sta->addr));
93 elems->osen = NULL;
94 }
95
96 if (elems->wpa_ie && elems->rsn_ie) {
97 wpa_printf(MSG_INFO, "Both WPA IE and RSN IE included in "
98 "Association Request frame from " MACSTR,
99 MAC2STR(sta->addr));
100 }
101
102 if (elems->rsn_ie) {
103 wpa_hexdump(MSG_DEBUG, "RSN IE", elems->rsn_ie - 2,
104 elems->rsn_ie_len + 2);
105 os_memcpy(sta->rsnie, elems->rsn_ie - 2,
106 elems->rsn_ie_len + 2);
107 if (wpa_parse_wpa_ie_rsn(sta->rsnie, 2 + sta->rsnie[1], &data)
108 < 0) {
109 wpa_printf(MSG_INFO, "Failed to parse RSN IE from "
110 MACSTR, MAC2STR(sta->addr));
111 }
112 } else if (elems->wpa_ie) {
113 wpa_hexdump(MSG_DEBUG, "WPA IE", elems->wpa_ie - 2,
114 elems->wpa_ie_len + 2);
115 os_memcpy(sta->rsnie, elems->wpa_ie - 2,
116 elems->wpa_ie_len + 2);
117 if (wpa_parse_wpa_ie_wpa(sta->rsnie, 2 + sta->rsnie[1], &data)
118 < 0) {
119 wpa_printf(MSG_INFO, "Failed to parse WPA IE from "
120 MACSTR, MAC2STR(sta->addr));
121 }
122 } else if (elems->osen) {
123 wpa_hexdump(MSG_DEBUG, "OSEN IE", elems->osen - 2,
124 elems->osen_len + 2);
125 os_memcpy(sta->osenie, elems->osen - 2, elems->osen_len + 2);
126 sta->proto = WPA_PROTO_OSEN;
127 sta->pairwise_cipher = WPA_CIPHER_CCMP;
128 sta->key_mgmt = WPA_KEY_MGMT_OSEN;
129 sta->rsn_capab = 0;
130 goto skip_rsn_wpa;
131 } else {
132 sta->rsnie[0] = 0;
133 sta->proto = 0;
134 sta->pairwise_cipher = 0;
135 sta->key_mgmt = 0;
136 sta->rsn_capab = 0;
137 if (sta->assocreq_capab_info & WLAN_CAPABILITY_PRIVACY)
138 sta->pairwise_cipher = WPA_CIPHER_WEP40;
139 goto skip_rsn_wpa;
140 }
141
142 sta->proto = data.proto;
143 sta->pairwise_cipher = data.pairwise_cipher;
144 sta->key_mgmt = data.key_mgmt;
145 sta->rsn_capab = data.capabilities;
146 if (bss->proto && (sta->proto & bss->proto) == 0) {
147 wpa_printf(MSG_INFO, "Mismatch in WPA/WPA2 proto: STA "
148 MACSTR " 0x%x BSS " MACSTR " 0x%x",
149 MAC2STR(sta->addr), sta->proto,
150 MAC2STR(bss->bssid), bss->proto);
151 }
152 if (bss->pairwise_cipher &&
153 (sta->pairwise_cipher & bss->pairwise_cipher) == 0) {
154 wpa_printf(MSG_INFO, "Mismatch in pairwise cipher: STA "
155 MACSTR " 0x%x BSS " MACSTR " 0x%x",
156 MAC2STR(sta->addr), sta->pairwise_cipher,
157 MAC2STR(bss->bssid), bss->pairwise_cipher);
158 }
159 if (sta->proto && data.group_cipher != bss->group_cipher &&
160 bss->ies_set) {
161 wpa_printf(MSG_INFO, "Mismatch in group cipher: STA "
162 MACSTR " 0x%x != BSS " MACSTR " 0x%x",
163 MAC2STR(sta->addr), data.group_cipher,
164 MAC2STR(bss->bssid), bss->group_cipher);
165 }
166 if ((bss->rsn_capab & WPA_CAPABILITY_MFPR) &&
167 !(sta->rsn_capab & WPA_CAPABILITY_MFPC)) {
168 wpa_printf(MSG_INFO, "STA " MACSTR " tries to associate "
169 "without MFP to BSS " MACSTR " that advertises "
170 "MFPR", MAC2STR(sta->addr), MAC2STR(bss->bssid));
171 }
172 if ((sta->rsn_capab & WPA_CAPABILITY_OCVC) &&
173 !(sta->rsn_capab & WPA_CAPABILITY_MFPC)) {
174 wpa_printf(MSG_INFO, "STA " MACSTR " tries to associate "
175 "without MFP to BSS " MACSTR " while supporting "
176 "OCV", MAC2STR(sta->addr), MAC2STR(bss->bssid));
177 }
178
179 skip_rsn_wpa:
180 wpa_printf(MSG_INFO, "STA " MACSTR
181 " proto=%s%s%s%s"
182 "pairwise=%s%s%s%s%s%s%s"
183 "key_mgmt=%s%s%s%s%s%s%s%s%s%s%s%s%s%s"
184 "rsn_capab=%s%s%s%s%s%s%s%s%s%s",
185 MAC2STR(sta->addr),
186 sta->proto == 0 ? "OPEN " : "",
187 sta->proto & WPA_PROTO_WPA ? "WPA " : "",
188 sta->proto & WPA_PROTO_RSN ? "WPA2 " : "",
189 sta->proto & WPA_PROTO_OSEN ? "OSEN " : "",
190 sta->pairwise_cipher == 0 ? "N/A " : "",
191 sta->pairwise_cipher & WPA_CIPHER_NONE ? "NONE " : "",
192 sta->pairwise_cipher & WPA_CIPHER_TKIP ? "TKIP " : "",
193 sta->pairwise_cipher & WPA_CIPHER_CCMP ? "CCMP " : "",
194 bss->pairwise_cipher & WPA_CIPHER_CCMP_256 ? "CCMP-256 " :
195 "",
196 bss->pairwise_cipher & WPA_CIPHER_GCMP ? "GCMP " : "",
197 bss->pairwise_cipher & WPA_CIPHER_GCMP_256 ? "GCMP-256 " :
198 "",
199 sta->key_mgmt == 0 ? "N/A " : "",
200 sta->key_mgmt & WPA_KEY_MGMT_IEEE8021X ? "EAP " : "",
201 sta->key_mgmt & WPA_KEY_MGMT_PSK ? "PSK " : "",
202 sta->key_mgmt & WPA_KEY_MGMT_WPA_NONE ? "WPA-NONE " : "",
203 sta->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X ? "FT-EAP " : "",
204 sta->key_mgmt & WPA_KEY_MGMT_FT_PSK ? "FT-PSK " : "",
205 sta->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256 ?
206 "EAP-SHA256 " : "",
207 sta->key_mgmt & WPA_KEY_MGMT_PSK_SHA256 ?
208 "PSK-SHA256 " : "",
209 sta->key_mgmt & WPA_KEY_MGMT_OWE ? "OWE " : "",
210 sta->key_mgmt & WPA_KEY_MGMT_PASN ? "PASN " : "",
211 sta->key_mgmt & WPA_KEY_MGMT_OSEN ? "OSEN " : "",
212 sta->key_mgmt & WPA_KEY_MGMT_DPP ? "DPP " : "",
213 sta->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B ?
214 "EAP-SUITE-B " : "",
215 sta->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192 ?
216 "EAP-SUITE-B-192 " : "",
217 sta->rsn_capab & WPA_CAPABILITY_PREAUTH ? "PREAUTH " : "",
218 sta->rsn_capab & WPA_CAPABILITY_NO_PAIRWISE ?
219 "NO_PAIRWISE " : "",
220 sta->rsn_capab & WPA_CAPABILITY_MFPR ? "MFPR " : "",
221 sta->rsn_capab & WPA_CAPABILITY_MFPC ? "MFPC " : "",
222 sta->rsn_capab & WPA_CAPABILITY_PEERKEY_ENABLED ?
223 "PEERKEY " : "",
224 sta->rsn_capab & WPA_CAPABILITY_SPP_A_MSDU_CAPABLE ?
225 "SPP-A-MSDU-CAPAB " : "",
226 sta->rsn_capab & WPA_CAPABILITY_SPP_A_MSDU_REQUIRED ?
227 "SPP-A-MSDU-REQUIRED " : "",
228 sta->rsn_capab & WPA_CAPABILITY_PBAC ? "PBAC " : "",
229 sta->rsn_capab & WPA_CAPABILITY_OCVC ? "OCVC " : "",
230 sta->rsn_capab & WPA_CAPABILITY_EXT_KEY_ID_FOR_UNICAST ?
231 "ExtKeyID " : "");
232 }
233