1 /*
2 * hostapd / IEEE 802.11 MLME
3 * Copyright 2003-2006, Jouni Malinen <j@w1.fi>
4 * Copyright 2003-2004, Instant802 Networks, Inc.
5 * Copyright 2005-2006, Devicescape Software, Inc.
6 *
7 * This software may be distributed under the terms of the BSD license.
8 * See README for more details.
9 */
10
11 #include "utils/includes.h"
12
13 #include "utils/common.h"
14 #include "common/ieee802_11_defs.h"
15 #include "ieee802_11.h"
16 #include "wpa_auth.h"
17 #include "sta_info.h"
18 #include "ap_mlme.h"
19 #include "hostapd.h"
20
21
22 #ifndef CONFIG_NO_HOSTAPD_LOGGER
mlme_auth_alg_str(int alg)23 static const char * mlme_auth_alg_str(int alg)
24 {
25 switch (alg) {
26 case WLAN_AUTH_OPEN:
27 return "OPEN_SYSTEM";
28 case WLAN_AUTH_SHARED_KEY:
29 return "SHARED_KEY";
30 case WLAN_AUTH_FT:
31 return "FT";
32 }
33
34 return "unknown";
35 }
36 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
37
38
39 /**
40 * mlme_authenticate_indication - Report the establishment of an authentication
41 * relationship with a specific peer MAC entity
42 * @hapd: BSS data
43 * @sta: peer STA data
44 *
45 * MLME calls this function as a result of the establishment of an
46 * authentication relationship with a specific peer MAC entity that
47 * resulted from an authentication procedure that was initiated by
48 * that specific peer MAC entity.
49 *
50 * PeerSTAAddress = sta->addr
51 * AuthenticationType = sta->auth_alg (WLAN_AUTH_OPEN / WLAN_AUTH_SHARED_KEY)
52 */
mlme_authenticate_indication(struct hostapd_data * hapd,struct sta_info * sta)53 void mlme_authenticate_indication(struct hostapd_data *hapd,
54 struct sta_info *sta)
55 {
56 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
57 HOSTAPD_LEVEL_DEBUG,
58 "MLME-AUTHENTICATE.indication(" MACSTR ", %s)",
59 MAC2STR(sta->addr), mlme_auth_alg_str(sta->auth_alg));
60 if (sta->auth_alg != WLAN_AUTH_FT && !(sta->flags & WLAN_STA_MFP))
61 mlme_deletekeys_request(hapd, sta);
62 ap_sta_clear_disconnect_timeouts(hapd, sta);
63 }
64
65
66 /**
67 * mlme_deauthenticate_indication - Report the invalidation of an
68 * authentication relationship with a specific peer MAC entity
69 * @hapd: BSS data
70 * @sta: Peer STA data
71 * @reason_code: ReasonCode from Deauthentication frame
72 *
73 * MLME calls this function as a result of the invalidation of an
74 * authentication relationship with a specific peer MAC entity.
75 *
76 * PeerSTAAddress = sta->addr
77 */
mlme_deauthenticate_indication(struct hostapd_data * hapd,struct sta_info * sta,u16 reason_code)78 void mlme_deauthenticate_indication(struct hostapd_data *hapd,
79 struct sta_info *sta, u16 reason_code)
80 {
81 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
82 HOSTAPD_LEVEL_DEBUG,
83 "MLME-DEAUTHENTICATE.indication(" MACSTR ", %d)",
84 MAC2STR(sta->addr), reason_code);
85 if (!hapd->iface->driver_ap_teardown)
86 mlme_deletekeys_request(hapd, sta);
87 }
88
89
90 /**
91 * mlme_associate_indication - Report the establishment of an association with
92 * a specific peer MAC entity
93 * @hapd: BSS data
94 * @sta: peer STA data
95 *
96 * MLME calls this function as a result of the establishment of an
97 * association with a specific peer MAC entity that resulted from an
98 * association procedure that was initiated by that specific peer MAC entity.
99 *
100 * PeerSTAAddress = sta->addr
101 */
mlme_associate_indication(struct hostapd_data * hapd,struct sta_info * sta)102 void mlme_associate_indication(struct hostapd_data *hapd, struct sta_info *sta)
103 {
104 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
105 HOSTAPD_LEVEL_DEBUG,
106 "MLME-ASSOCIATE.indication(" MACSTR ")",
107 MAC2STR(sta->addr));
108 if (sta->auth_alg != WLAN_AUTH_FT)
109 mlme_deletekeys_request(hapd, sta);
110 ap_sta_clear_disconnect_timeouts(hapd, sta);
111 }
112
113
114 /**
115 * mlme_reassociate_indication - Report the establishment of an reassociation
116 * with a specific peer MAC entity
117 * @hapd: BSS data
118 * @sta: peer STA data
119 *
120 * MLME calls this function as a result of the establishment of an
121 * reassociation with a specific peer MAC entity that resulted from a
122 * reassociation procedure that was initiated by that specific peer MAC entity.
123 *
124 * PeerSTAAddress = sta->addr
125 */
mlme_reassociate_indication(struct hostapd_data * hapd,struct sta_info * sta)126 void mlme_reassociate_indication(struct hostapd_data *hapd,
127 struct sta_info *sta)
128 {
129 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
130 HOSTAPD_LEVEL_DEBUG,
131 "MLME-REASSOCIATE.indication(" MACSTR ")",
132 MAC2STR(sta->addr));
133 if (sta->auth_alg != WLAN_AUTH_FT)
134 mlme_deletekeys_request(hapd, sta);
135 ap_sta_clear_disconnect_timeouts(hapd, sta);
136 }
137
138
139 /**
140 * mlme_disassociate_indication - Report disassociation with a specific peer
141 * MAC entity
142 * @hapd: BSS data
143 * @sta: Peer STA data
144 * @reason_code: ReasonCode from Disassociation frame
145 *
146 * MLME calls this function as a result of the invalidation of an association
147 * relationship with a specific peer MAC entity.
148 *
149 * PeerSTAAddress = sta->addr
150 */
mlme_disassociate_indication(struct hostapd_data * hapd,struct sta_info * sta,u16 reason_code)151 void mlme_disassociate_indication(struct hostapd_data *hapd,
152 struct sta_info *sta, u16 reason_code)
153 {
154 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
155 HOSTAPD_LEVEL_DEBUG,
156 "MLME-DISASSOCIATE.indication(" MACSTR ", %d)",
157 MAC2STR(sta->addr), reason_code);
158 mlme_deletekeys_request(hapd, sta);
159 }
160
161
mlme_michaelmicfailure_indication(struct hostapd_data * hapd,const u8 * addr)162 void mlme_michaelmicfailure_indication(struct hostapd_data *hapd,
163 const u8 *addr)
164 {
165 hostapd_logger(hapd, addr, HOSTAPD_MODULE_MLME,
166 HOSTAPD_LEVEL_DEBUG,
167 "MLME-MichaelMICFailure.indication(" MACSTR ")",
168 MAC2STR(addr));
169 }
170
171
mlme_deletekeys_request(struct hostapd_data * hapd,struct sta_info * sta)172 void mlme_deletekeys_request(struct hostapd_data *hapd, struct sta_info *sta)
173 {
174 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
175 HOSTAPD_LEVEL_DEBUG,
176 "MLME-DELETEKEYS.request(" MACSTR ")",
177 MAC2STR(sta->addr));
178
179 if (sta->wpa_sm)
180 wpa_remove_ptk(sta->wpa_sm);
181 }
182