mirror of
https://github.com/vanhoefm/fragattacks.git
synced 2024-11-29 18:58:21 -05:00
231 lines
6.6 KiB
C
231 lines
6.6 KiB
C
/*
|
|
* hostapd - IEEE 802.11i-2004 / WPA Authenticator: Internal definitions
|
|
* Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of BSD
|
|
* license.
|
|
*
|
|
* See README and COPYING for more details.
|
|
*/
|
|
|
|
#ifndef WPA_AUTH_I_H
|
|
#define WPA_AUTH_I_H
|
|
|
|
/* max(dot11RSNAConfigGroupUpdateCount,dot11RSNAConfigPairwiseUpdateCount) */
|
|
#define RSNA_MAX_EAPOL_RETRIES 4
|
|
|
|
struct wpa_group;
|
|
|
|
struct wpa_stsl_negotiation {
|
|
struct wpa_stsl_negotiation *next;
|
|
u8 initiator[ETH_ALEN];
|
|
u8 peer[ETH_ALEN];
|
|
};
|
|
|
|
|
|
struct wpa_state_machine {
|
|
struct wpa_authenticator *wpa_auth;
|
|
struct wpa_group *group;
|
|
|
|
u8 addr[ETH_ALEN];
|
|
|
|
enum {
|
|
WPA_PTK_INITIALIZE, WPA_PTK_DISCONNECT, WPA_PTK_DISCONNECTED,
|
|
WPA_PTK_AUTHENTICATION, WPA_PTK_AUTHENTICATION2,
|
|
WPA_PTK_INITPMK, WPA_PTK_INITPSK, WPA_PTK_PTKSTART,
|
|
WPA_PTK_PTKCALCNEGOTIATING, WPA_PTK_PTKCALCNEGOTIATING2,
|
|
WPA_PTK_PTKINITNEGOTIATING, WPA_PTK_PTKINITDONE
|
|
} wpa_ptk_state;
|
|
|
|
enum {
|
|
WPA_PTK_GROUP_IDLE = 0,
|
|
WPA_PTK_GROUP_REKEYNEGOTIATING,
|
|
WPA_PTK_GROUP_REKEYESTABLISHED,
|
|
WPA_PTK_GROUP_KEYERROR
|
|
} wpa_ptk_group_state;
|
|
|
|
Boolean Init;
|
|
Boolean DeauthenticationRequest;
|
|
Boolean AuthenticationRequest;
|
|
Boolean ReAuthenticationRequest;
|
|
Boolean Disconnect;
|
|
int TimeoutCtr;
|
|
int GTimeoutCtr;
|
|
Boolean TimeoutEvt;
|
|
Boolean EAPOLKeyReceived;
|
|
Boolean EAPOLKeyPairwise;
|
|
Boolean EAPOLKeyRequest;
|
|
Boolean MICVerified;
|
|
Boolean GUpdateStationKeys;
|
|
u8 ANonce[WPA_NONCE_LEN];
|
|
u8 SNonce[WPA_NONCE_LEN];
|
|
u8 PMK[PMK_LEN];
|
|
struct wpa_ptk PTK;
|
|
Boolean PTK_valid;
|
|
Boolean pairwise_set;
|
|
int keycount;
|
|
Boolean Pair;
|
|
struct {
|
|
u8 counter[WPA_REPLAY_COUNTER_LEN];
|
|
Boolean valid;
|
|
} key_replay[RSNA_MAX_EAPOL_RETRIES];
|
|
Boolean PInitAKeys; /* WPA only, not in IEEE 802.11i */
|
|
Boolean PTKRequest; /* not in IEEE 802.11i state machine */
|
|
Boolean has_GTK;
|
|
Boolean PtkGroupInit; /* init request for PTK Group state machine */
|
|
|
|
u8 *last_rx_eapol_key; /* starting from IEEE 802.1X header */
|
|
size_t last_rx_eapol_key_len;
|
|
|
|
unsigned int changed:1;
|
|
unsigned int in_step_loop:1;
|
|
unsigned int pending_deinit:1;
|
|
unsigned int started:1;
|
|
unsigned int mgmt_frame_prot:1;
|
|
#ifdef CONFIG_IEEE80211R
|
|
unsigned int ft_completed:1;
|
|
unsigned int pmk_r1_name_valid:1;
|
|
#endif /* CONFIG_IEEE80211R */
|
|
|
|
u8 req_replay_counter[WPA_REPLAY_COUNTER_LEN];
|
|
int req_replay_counter_used;
|
|
|
|
u8 *wpa_ie;
|
|
size_t wpa_ie_len;
|
|
|
|
enum {
|
|
WPA_VERSION_NO_WPA = 0 /* WPA not used */,
|
|
WPA_VERSION_WPA = 1 /* WPA / IEEE 802.11i/D3.0 */,
|
|
WPA_VERSION_WPA2 = 2 /* WPA2 / IEEE 802.11i */
|
|
} wpa;
|
|
int pairwise; /* Pairwise cipher suite, WPA_CIPHER_* */
|
|
int wpa_key_mgmt; /* the selected WPA_KEY_MGMT_* */
|
|
struct rsn_pmksa_cache_entry *pmksa;
|
|
|
|
u32 dot11RSNAStatsTKIPLocalMICFailures;
|
|
u32 dot11RSNAStatsTKIPRemoteMICFailures;
|
|
|
|
#ifdef CONFIG_IEEE80211R
|
|
u8 xxkey[PMK_LEN]; /* PSK or the second 256 bits of MSK */
|
|
size_t xxkey_len;
|
|
u8 pmk_r1_name[WPA_PMK_NAME_LEN]; /* PMKR1Name derived from FT Auth
|
|
* Request */
|
|
u8 r0kh_id[FT_R0KH_ID_MAX_LEN]; /* R0KH-ID from FT Auth Request */
|
|
size_t r0kh_id_len;
|
|
u8 sup_pmk_r1_name[WPA_PMK_NAME_LEN]; /* PMKR1Name from EAPOL-Key
|
|
* message 2/4 */
|
|
u8 *assoc_resp_ftie;
|
|
#endif /* CONFIG_IEEE80211R */
|
|
};
|
|
|
|
|
|
/* per group key state machine data */
|
|
struct wpa_group {
|
|
struct wpa_group *next;
|
|
int vlan_id;
|
|
|
|
Boolean GInit;
|
|
int GKeyDoneStations;
|
|
Boolean GTKReKey;
|
|
int GTK_len;
|
|
int GN, GM;
|
|
Boolean GTKAuthenticator;
|
|
u8 Counter[WPA_NONCE_LEN];
|
|
|
|
enum {
|
|
WPA_GROUP_GTK_INIT = 0,
|
|
WPA_GROUP_SETKEYS, WPA_GROUP_SETKEYSDONE
|
|
} wpa_group_state;
|
|
|
|
u8 GMK[WPA_GMK_LEN];
|
|
u8 GTK[2][WPA_GTK_MAX_LEN];
|
|
u8 GNonce[WPA_NONCE_LEN];
|
|
Boolean changed;
|
|
#ifdef CONFIG_IEEE80211W
|
|
u8 IGTK[2][WPA_IGTK_LEN];
|
|
int GN_igtk, GM_igtk;
|
|
#endif /* CONFIG_IEEE80211W */
|
|
};
|
|
|
|
|
|
struct wpa_ft_pmk_cache;
|
|
|
|
/* per authenticator data */
|
|
struct wpa_authenticator {
|
|
struct wpa_group *group;
|
|
|
|
unsigned int dot11RSNAStatsTKIPRemoteMICFailures;
|
|
u32 dot11RSNAAuthenticationSuiteSelected;
|
|
u32 dot11RSNAPairwiseCipherSelected;
|
|
u32 dot11RSNAGroupCipherSelected;
|
|
u8 dot11RSNAPMKIDUsed[PMKID_LEN];
|
|
u32 dot11RSNAAuthenticationSuiteRequested; /* FIX: update */
|
|
u32 dot11RSNAPairwiseCipherRequested; /* FIX: update */
|
|
u32 dot11RSNAGroupCipherRequested; /* FIX: update */
|
|
unsigned int dot11RSNATKIPCounterMeasuresInvoked;
|
|
unsigned int dot11RSNA4WayHandshakeFailures;
|
|
|
|
struct wpa_stsl_negotiation *stsl_negotiations;
|
|
|
|
struct wpa_auth_config conf;
|
|
struct wpa_auth_callbacks cb;
|
|
|
|
u8 *wpa_ie;
|
|
size_t wpa_ie_len;
|
|
|
|
u8 addr[ETH_ALEN];
|
|
|
|
struct rsn_pmksa_cache *pmksa;
|
|
struct wpa_ft_pmk_cache *ft_pmk_cache;
|
|
};
|
|
|
|
|
|
int wpa_write_rsn_ie(struct wpa_auth_config *conf, u8 *buf, size_t len,
|
|
const u8 *pmkid);
|
|
void wpa_auth_logger(struct wpa_authenticator *wpa_auth, const u8 *addr,
|
|
logger_level level, const char *txt);
|
|
void wpa_auth_vlogger(struct wpa_authenticator *wpa_auth, const u8 *addr,
|
|
logger_level level, const char *fmt, ...);
|
|
void __wpa_send_eapol(struct wpa_authenticator *wpa_auth,
|
|
struct wpa_state_machine *sm, int key_info,
|
|
const u8 *key_rsc, const u8 *nonce,
|
|
const u8 *kde, size_t kde_len,
|
|
int keyidx, int encr, int force_version);
|
|
int wpa_auth_for_each_sta(struct wpa_authenticator *wpa_auth,
|
|
int (*cb)(struct wpa_state_machine *sm, void *ctx),
|
|
void *cb_ctx);
|
|
int wpa_auth_for_each_auth(struct wpa_authenticator *wpa_auth,
|
|
int (*cb)(struct wpa_authenticator *a, void *ctx),
|
|
void *cb_ctx);
|
|
|
|
#ifdef CONFIG_PEERKEY
|
|
int wpa_stsl_remove(struct wpa_authenticator *wpa_auth,
|
|
struct wpa_stsl_negotiation *neg);
|
|
void wpa_smk_error(struct wpa_authenticator *wpa_auth,
|
|
struct wpa_state_machine *sm, struct wpa_eapol_key *key);
|
|
void wpa_smk_m1(struct wpa_authenticator *wpa_auth,
|
|
struct wpa_state_machine *sm, struct wpa_eapol_key *key);
|
|
void wpa_smk_m3(struct wpa_authenticator *wpa_auth,
|
|
struct wpa_state_machine *sm, struct wpa_eapol_key *key);
|
|
#endif /* CONFIG_PEERKEY */
|
|
|
|
#ifdef CONFIG_IEEE80211R
|
|
int wpa_write_mdie(struct wpa_auth_config *conf, u8 *buf, size_t len);
|
|
int wpa_write_ftie(struct wpa_auth_config *conf, const u8 *r0kh_id,
|
|
size_t r0kh_id_len,
|
|
const u8 *anonce, const u8 *snonce,
|
|
u8 *buf, size_t len, const u8 *subelem,
|
|
size_t subelem_len);
|
|
int wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, const u8 *pmk,
|
|
struct wpa_ptk *ptk, size_t ptk_len);
|
|
struct wpa_ft_pmk_cache * wpa_ft_pmk_cache_init(void);
|
|
void wpa_ft_pmk_cache_deinit(struct wpa_ft_pmk_cache *cache);
|
|
void wpa_ft_install_ptk(struct wpa_state_machine *sm);
|
|
#endif /* CONFIG_IEEE80211R */
|
|
|
|
#endif /* WPA_AUTH_I_H */
|