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 }
63
64
65 /**
66 * mlme_deauthenticate_indication - Report the invalidation of an
67 * authentication relationship with a specific peer MAC entity
68 * @hapd: BSS data
69 * @sta: Peer STA data
70 * @reason_code: ReasonCode from Deauthentication frame
71 *
72 * MLME calls this function as a result of the invalidation of an
73 * authentication relationship with a specific peer MAC entity.
74 *
75 * PeerSTAAddress = sta->addr
76 */
mlme_deauthenticate_indication(struct hostapd_data * hapd,struct sta_info * sta,u16 reason_code)77 void mlme_deauthenticate_indication(struct hostapd_data *hapd,
78 struct sta_info *sta, u16 reason_code)
79 {
80 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
81 HOSTAPD_LEVEL_DEBUG,
82 "MLME-DEAUTHENTICATE.indication(" MACSTR ", %d)",
83 MAC2STR(sta->addr), reason_code);
84 if (!hapd->iface->driver_ap_teardown)
85 mlme_deletekeys_request(hapd, sta);
86 }
87
88
89 /**
90 * mlme_associate_indication - Report the establishment of an association with
91 * a specific peer MAC entity
92 * @hapd: BSS data
93 * @sta: peer STA data
94 *
95 * MLME calls this function as a result of the establishment of an
96 * association with a specific peer MAC entity that resulted from an
97 * association procedure that was initiated by that specific peer MAC entity.
98 *
99 * PeerSTAAddress = sta->addr
100 */
mlme_associate_indication(struct hostapd_data * hapd,struct sta_info * sta)101 void mlme_associate_indication(struct hostapd_data *hapd, struct sta_info *sta)
102 {
103 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
104 HOSTAPD_LEVEL_DEBUG,
105 "MLME-ASSOCIATE.indication(" MACSTR ")",
106 MAC2STR(sta->addr));
107 if (sta->auth_alg != WLAN_AUTH_FT)
108 mlme_deletekeys_request(hapd, sta);
109 }
110
111
112 /**
113 * mlme_reassociate_indication - Report the establishment of an reassociation
114 * with a specific peer MAC entity
115 * @hapd: BSS data
116 * @sta: peer STA data
117 *
118 * MLME calls this function as a result of the establishment of an
119 * reassociation with a specific peer MAC entity that resulted from a
120 * reassociation procedure that was initiated by that specific peer MAC entity.
121 *
122 * PeerSTAAddress = sta->addr
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