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
20
21 #ifndef CONFIG_NO_HOSTAPD_LOGGER
mlme_auth_alg_str(int alg)22 static const char * mlme_auth_alg_str(int alg)
23 {
24 switch (alg) {
25 case WLAN_AUTH_OPEN:
26 return "OPEN_SYSTEM";
27 case WLAN_AUTH_SHARED_KEY:
28 return "SHARED_KEY";
29 case WLAN_AUTH_FT:
30 return "FT";
31 }
32
33 return "unknown";
34 }
35 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
36
37
38 /**
39 * mlme_authenticate_indication - Report the establishment of an authentication
40 * relationship with a specific peer MAC entity
41 * @hapd: BSS data
42 * @sta: peer STA data
43 *
44 * MLME calls this function as a result of the establishment of an
45 * authentication relationship with a specific peer MAC entity that
46 * resulted from an authentication procedure that was initiated by
47 * that specific peer MAC entity.
48 *
49 * PeerSTAAddress = sta->addr
50 * AuthenticationType = sta->auth_alg (WLAN_AUTH_OPEN / WLAN_AUTH_SHARED_KEY)
51 */
mlme_authenticate_indication(struct hostapd_data * hapd,struct sta_info * sta)52 void mlme_authenticate_indication(struct hostapd_data *hapd,
53 struct sta_info *sta)
54 {
55 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
56 HOSTAPD_LEVEL_DEBUG,
57 "MLME-AUTHENTICATE.indication(" MACSTR ", %s)",
58 MAC2STR(sta->addr), mlme_auth_alg_str(sta->auth_alg));
59 if (sta->auth_alg != WLAN_AUTH_FT && !(sta->flags & WLAN_STA_MFP))
60 mlme_deletekeys_request(hapd, sta);
61 }
62
63
64 /**
65 * mlme_deauthenticate_indication - Report the invalidation of an
66 * authentication relationship with a specific peer MAC entity
67 * @hapd: BSS data
68 * @sta: Peer STA data
69 * @reason_code: ReasonCode from Deauthentication frame
70 *
71 * MLME calls this function as a result of the invalidation of an
72 * authentication relationship with a specific peer MAC entity.
73 *
74 * PeerSTAAddress = sta->addr
75 */
mlme_deauthenticate_indication(struct hostapd_data * hapd,struct sta_info * sta,u16 reason_code)76 void mlme_deauthenticate_indication(struct hostapd_data *hapd,
77 struct sta_info *sta, u16 reason_code)
78 {
79 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
80 HOSTAPD_LEVEL_DEBUG,
81 "MLME-DEAUTHENTICATE.indication(" MACSTR ", %d)",
82 MAC2STR(sta->addr), reason_code);
83 mlme_deletekeys_request(hapd, sta);
84 }
85
86
87 /**
88 * mlme_associate_indication - Report the establishment of an association with
89 * a specific peer MAC entity
90 * @hapd: BSS data
91 * @sta: peer STA data
92 *
93 * MLME calls this function as a result of the establishment of an
94 * association with a specific peer MAC entity that resulted from an
95 * association procedure that was initiated by that specific peer MAC entity.
96 *
97 * PeerSTAAddress = sta->addr
98 */
mlme_associate_indication(struct hostapd_data * hapd,struct sta_info * sta)99 void mlme_associate_indication(struct hostapd_data *hapd, struct sta_info *sta)
100 {
101 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
102 HOSTAPD_LEVEL_DEBUG,
103 "MLME-ASSOCIATE.indication(" MACSTR ")",
104 MAC2STR(sta->addr));
105 if (sta->auth_alg != WLAN_AUTH_FT)
106 mlme_deletekeys_request(hapd, sta);
107 }
108
109
110 /**
111 * mlme_reassociate_indication - Report the establishment of an reassociation
112 * with a specific peer MAC entity
113 * @hapd: BSS data
114 * @sta: peer STA data
115 *
116 * MLME calls this function as a result of the establishment of an
117 * reassociation with a specific peer MAC entity that resulted from a
118 * reassociation procedure that was initiated by that specific peer MAC entity.
119 *
120 * PeerSTAAddress = sta->addr
121 *
122 * sta->previous_ap contains the "Current AP" information from ReassocReq.
123 */
mlme_reassociate_indication(struct hostapd_data * hapd,struct sta_info * sta)124 void mlme_reassociate_indication(struct hostapd_data *hapd,
125 struct sta_info *sta)
126 {
127 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
128 HOSTAPD_LEVEL_DEBUG,
129 "MLME-REASSOCIATE.indication(" MACSTR ")",
130 MAC2STR(sta->addr));
131 if (sta->auth_alg != WLAN_AUTH_FT)
132 mlme_deletekeys_request(hapd, sta);
133 }
134
135
136 /**
137 * mlme_disassociate_indication - Report disassociation with a specific peer
138 * MAC entity
139 * @hapd: BSS data
140 * @sta: Peer STA data
141 * @reason_code: ReasonCode from Disassociation frame
142 *
143 * MLME calls this function as a result of the invalidation of an association
144 * relationship with a specific peer MAC entity.
145 *
146 * PeerSTAAddress = sta->addr
147 */
mlme_disassociate_indication(struct hostapd_data * hapd,struct sta_info * sta,u16 reason_code)148 void mlme_disassociate_indication(struct hostapd_data *hapd,
149 struct sta_info *sta, u16 reason_code)
150 {
151 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
152 HOSTAPD_LEVEL_DEBUG,
153 "MLME-DISASSOCIATE.indication(" MACSTR ", %d)",
154 MAC2STR(sta->addr), reason_code);
155 mlme_deletekeys_request(hapd, sta);
156 }
157
158
mlme_michaelmicfailure_indication(struct hostapd_data * hapd,const u8 * addr)159 void mlme_michaelmicfailure_indication(struct hostapd_data *hapd,
160 const u8 *addr)
161 {
162 hostapd_logger(hapd, addr, HOSTAPD_MODULE_MLME,
163 HOSTAPD_LEVEL_DEBUG,
164 "MLME-MichaelMICFailure.indication(" MACSTR ")",
165 MAC2STR(addr));
166 }
167
168
mlme_deletekeys_request(struct hostapd_data * hapd,struct sta_info * sta)169 void mlme_deletekeys_request(struct hostapd_data *hapd, struct sta_info *sta)
170 {
171 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
172 HOSTAPD_LEVEL_DEBUG,
173 "MLME-DELETEKEYS.request(" MACSTR ")",
174 MAC2STR(sta->addr));
175
176 if (sta->wpa_sm)
177 wpa_remove_ptk(sta->wpa_sm);
178 }
179