Line data Source code
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
23 3258 : static const char * mlme_auth_alg_str(int alg)
24 : {
25 3258 : switch (alg) {
26 : case WLAN_AUTH_OPEN:
27 3045 : return "OPEN_SYSTEM";
28 : case WLAN_AUTH_SHARED_KEY:
29 26 : return "SHARED_KEY";
30 : case WLAN_AUTH_FT:
31 119 : return "FT";
32 : }
33 :
34 68 : 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 : */
53 3258 : void mlme_authenticate_indication(struct hostapd_data *hapd,
54 : struct sta_info *sta)
55 : {
56 22806 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
57 : HOSTAPD_LEVEL_DEBUG,
58 : "MLME-AUTHENTICATE.indication(" MACSTR ", %s)",
59 22806 : MAC2STR(sta->addr), mlme_auth_alg_str(sta->auth_alg));
60 3258 : if (sta->auth_alg != WLAN_AUTH_FT && !(sta->flags & WLAN_STA_MFP))
61 3127 : mlme_deletekeys_request(hapd, sta);
62 3258 : }
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 : */
77 3074 : void mlme_deauthenticate_indication(struct hostapd_data *hapd,
78 : struct sta_info *sta, u16 reason_code)
79 : {
80 21518 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
81 : HOSTAPD_LEVEL_DEBUG,
82 : "MLME-DEAUTHENTICATE.indication(" MACSTR ", %d)",
83 18444 : MAC2STR(sta->addr), reason_code);
84 3074 : if (!hapd->iface->driver_ap_teardown)
85 2860 : mlme_deletekeys_request(hapd, sta);
86 3074 : }
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 : */
101 2998 : void mlme_associate_indication(struct hostapd_data *hapd, struct sta_info *sta)
102 : {
103 17988 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
104 : HOSTAPD_LEVEL_DEBUG,
105 : "MLME-ASSOCIATE.indication(" MACSTR ")",
106 17988 : MAC2STR(sta->addr));
107 2998 : if (sta->auth_alg != WLAN_AUTH_FT)
108 2998 : mlme_deletekeys_request(hapd, sta);
109 2998 : }
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 : */
124 308 : void mlme_reassociate_indication(struct hostapd_data *hapd,
125 : struct sta_info *sta)
126 : {
127 1848 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
128 : HOSTAPD_LEVEL_DEBUG,
129 : "MLME-REASSOCIATE.indication(" MACSTR ")",
130 1848 : MAC2STR(sta->addr));
131 308 : if (sta->auth_alg != WLAN_AUTH_FT)
132 85 : mlme_deletekeys_request(hapd, sta);
133 308 : }
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 : */
148 14 : void mlme_disassociate_indication(struct hostapd_data *hapd,
149 : struct sta_info *sta, u16 reason_code)
150 : {
151 98 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
152 : HOSTAPD_LEVEL_DEBUG,
153 : "MLME-DISASSOCIATE.indication(" MACSTR ", %d)",
154 84 : MAC2STR(sta->addr), reason_code);
155 14 : mlme_deletekeys_request(hapd, sta);
156 14 : }
157 :
158 :
159 2 : void mlme_michaelmicfailure_indication(struct hostapd_data *hapd,
160 : const u8 *addr)
161 : {
162 12 : hostapd_logger(hapd, addr, HOSTAPD_MODULE_MLME,
163 : HOSTAPD_LEVEL_DEBUG,
164 : "MLME-MichaelMICFailure.indication(" MACSTR ")",
165 12 : MAC2STR(addr));
166 2 : }
167 :
168 :
169 9084 : void mlme_deletekeys_request(struct hostapd_data *hapd, struct sta_info *sta)
170 : {
171 54504 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
172 : HOSTAPD_LEVEL_DEBUG,
173 : "MLME-DELETEKEYS.request(" MACSTR ")",
174 54504 : MAC2STR(sta->addr));
175 :
176 9084 : if (sta->wpa_sm)
177 3925 : wpa_remove_ptk(sta->wpa_sm);
178 9084 : }
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