4 #define WPA_NONCE_LEN 32
5 #define WPA_PMK_LEN PMK_LEN
6 #define WPA_REPLAY_COUNTER_LEN 8
8 #define WPA_GTK_MAX_LEN 32
9 #define WPA_KEY_RSC_LEN 8
12 struct rsn_pmksa_cache {
13 struct rsn_pmksa_cache *next, *hnext;
17 int akmp; /* WPA_KEY_MGMT_* */
21 struct radius_class_data radius_class;
24 struct rsn_preauth_interface {
25 struct rsn_preauth_interface *next;
26 struct hostapd_data *hapd;
27 struct l2_packet_data *l2;
32 struct wpa_eapol_key {
36 u8 replay_counter[WPA_REPLAY_COUNTER_LEN];
37 u8 key_nonce[WPA_NONCE_LEN];
39 u8 key_rsc[WPA_KEY_RSC_LEN];
40 u8 key_id[8]; /* Reserved */
43 /* followed by key_data_length bytes of key_data */
44 } __attribute__ ((packed));
46 #define WPA_KEY_INFO_TYPE_MASK (BIT(0) | BIT(1) | BIT(2))
47 #define WPA_KEY_INFO_TYPE_HMAC_MD5_RC4 BIT(0)
48 #define WPA_KEY_INFO_TYPE_HMAC_SHA1_AES BIT(1)
49 #define WPA_KEY_INFO_KEY_TYPE BIT(3) /* 1 = Pairwise, 0 = Group key */
50 /* bit4..5 is used in WPA, but is reserved in IEEE 802.11i/RSN */
51 #define WPA_KEY_INFO_KEY_INDEX_MASK (BIT(4) | BIT(5))
52 #define WPA_KEY_INFO_KEY_INDEX_SHIFT 4
53 #define WPA_KEY_INFO_INSTALL BIT(6) /* pairwise */
54 #define WPA_KEY_INFO_TXRX BIT(6) /* group */
55 #define WPA_KEY_INFO_ACK BIT(7)
56 #define WPA_KEY_INFO_MIC BIT(8)
57 #define WPA_KEY_INFO_SECURE BIT(9)
58 #define WPA_KEY_INFO_ERROR BIT(10)
59 #define WPA_KEY_INFO_REQUEST BIT(11)
60 #define WPA_KEY_INFO_ENCR_KEY_DATA BIT(12)
63 /* per STA state machine data */
66 u8 mic_key[16]; /* EAPOL-Key MIC Key (MK) */
67 u8 encr_key[16]; /* EAPOL-Key Encryption Key (EK) */
68 u8 tk1[16]; /* Temporal Key 1 (TK1) */
70 u8 tk2[16]; /* Temporal Key 2 (TK2) */
76 } __attribute__ ((packed));
78 struct wpa_state_machine {
79 struct hostapd_data *hapd;
83 WPA_PTK_INITIALIZE, WPA_PTK_DISCONNECT, WPA_PTK_DISCONNECTED,
84 WPA_PTK_AUTHENTICATION, WPA_PTK_AUTHENTICATION2,
85 WPA_PTK_INITPMK, WPA_PTK_INITPSK, WPA_PTK_PTKSTART,
86 WPA_PTK_PTKCALCNEGOTIATING, WPA_PTK_PTKCALCNEGOTIATING2,
87 WPA_PTK_PTKINITNEGOTIATING, WPA_PTK_PTKINITDONE
91 WPA_PTK_GROUP_IDLE = 0,
92 WPA_PTK_GROUP_REKEYNEGOTIATING,
93 WPA_PTK_GROUP_REKEYESTABLISHED,
94 WPA_PTK_GROUP_KEYERROR
95 } wpa_ptk_group_state;
98 Boolean DeauthenticationRequest;
99 Boolean AuthenticationRequest;
100 Boolean ReAuthenticationRequest;
105 Boolean EAPOLKeyReceived;
106 Boolean EAPOLKeyPairwise;
107 Boolean EAPOLKeyRequest;
109 Boolean GUpdateStationKeys;
110 u8 ANonce[WPA_NONCE_LEN];
111 u8 SNonce[WPA_NONCE_LEN];
115 Boolean pairwise_set;
118 u8 key_replay_counter[WPA_REPLAY_COUNTER_LEN];
119 Boolean key_replay_counter_valid;
120 Boolean PInitAKeys; /* WPA only, not in IEEE 802.11i/D8 */
121 Boolean PTKRequest; /* not in IEEE 802.11i state machine */
124 u8 *last_rx_eapol_key; /* starting from IEEE 802.1X header */
125 size_t last_rx_eapol_key_len;
130 /* per authenticator data */
131 struct wpa_authenticator {
134 int GKeyDoneStations;
138 Boolean GTKAuthenticator;
139 u8 Counter[WPA_NONCE_LEN];
142 WPA_GROUP_GTK_INIT = 0,
143 WPA_GROUP_SETKEYS, WPA_GROUP_SETKEYSDONE
147 u8 GTK[2][WPA_GTK_MAX_LEN];
148 u8 GNonce[WPA_NONCE_LEN];
151 unsigned int dot11RSNAStatsTKIPRemoteMICFailures;
152 u8 dot11RSNAAuthenticationSuiteSelected[4];
153 u8 dot11RSNAPairwiseCipherSelected[4];
154 u8 dot11RSNAGroupCipherSelected[4];
155 u8 dot11RSNAPMKIDUsed[PMKID_LEN];
156 u8 dot11RSNAAuthenticationSuiteRequested[4]; /* FIX: update */
157 u8 dot11RSNAPairwiseCipherRequested[4]; /* FIX: update */
158 u8 dot11RSNAGroupCipherRequested[4]; /* FIX: update */
159 unsigned int dot11RSNATKIPCounterMeasuresInvoked;
160 unsigned int dot11RSNA4WayHandshakeFailures;
164 int wpa_init(struct hostapd_data *hapd);
165 void wpa_deinit(struct hostapd_data *hapd);
168 WPA_IE_OK, WPA_INVALID_IE, WPA_INVALID_GROUP, WPA_INVALID_PAIRWISE,
172 int wpa_validate_wpa_ie(struct hostapd_data *hapd, struct sta_info *sta,
173 const u8 *wpa_ie, size_t wpa_ie_len, int version);
174 void wpa_new_station(struct hostapd_data *hapd, struct sta_info *sta);
175 void wpa_free_station(struct sta_info *sta);
176 void wpa_receive(struct hostapd_data *hapd, struct sta_info *sta,
177 u8 *data, size_t data_len);
179 WPA_AUTH, WPA_ASSOC, WPA_DISASSOC, WPA_DEAUTH, WPA_REAUTH,
182 void wpa_sm_event(struct hostapd_data *hapd, struct sta_info *sta,
184 void wpa_sm_notify(struct hostapd_data *hapd, struct sta_info *sta);
185 void pmksa_cache_add(struct hostapd_data *hapd, struct sta_info *sta, u8 *pmk,
186 int session_timeout);
187 void rsn_preauth_finished(struct hostapd_data *hapd, struct sta_info *sta,
189 void rsn_preauth_send(struct hostapd_data *hapd, struct sta_info *sta,
190 u8 *buf, size_t len);
191 void wpa_gtk_rekey(struct hostapd_data *hapd);
192 int wpa_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen);
193 int wpa_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
194 char *buf, size_t buflen);