a7d6098fb4
This avoids compiler format-nonliteral warnings ("format string is not a
string literal").
Signed-off-by: Jouni Malinen <j@w1.fi>
309 lines
8.6 KiB
C
309 lines
8.6 KiB
C
/*
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* hostapd - IEEE 802.11i-2004 / WPA Authenticator: Internal definitions
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* Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#ifndef WPA_AUTH_I_H
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#define WPA_AUTH_I_H
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#include "utils/list.h"
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/* max(dot11RSNAConfigGroupUpdateCount,dot11RSNAConfigPairwiseUpdateCount) */
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#define RSNA_MAX_EAPOL_RETRIES 4
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struct wpa_group;
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struct wpa_state_machine {
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struct wpa_authenticator *wpa_auth;
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struct wpa_group *group;
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u8 addr[ETH_ALEN];
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u8 p2p_dev_addr[ETH_ALEN];
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u16 auth_alg;
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enum {
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WPA_PTK_INITIALIZE, WPA_PTK_DISCONNECT, WPA_PTK_DISCONNECTED,
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WPA_PTK_AUTHENTICATION, WPA_PTK_AUTHENTICATION2,
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WPA_PTK_INITPMK, WPA_PTK_INITPSK, WPA_PTK_PTKSTART,
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WPA_PTK_PTKCALCNEGOTIATING, WPA_PTK_PTKCALCNEGOTIATING2,
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WPA_PTK_PTKINITNEGOTIATING, WPA_PTK_PTKINITDONE
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} wpa_ptk_state;
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enum {
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WPA_PTK_GROUP_IDLE = 0,
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WPA_PTK_GROUP_REKEYNEGOTIATING,
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WPA_PTK_GROUP_REKEYESTABLISHED,
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WPA_PTK_GROUP_KEYERROR
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} wpa_ptk_group_state;
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bool Init;
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bool DeauthenticationRequest;
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bool AuthenticationRequest;
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bool ReAuthenticationRequest;
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bool Disconnect;
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u16 disconnect_reason; /* specific reason code to use with Disconnect */
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u32 TimeoutCtr;
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u32 GTimeoutCtr;
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bool TimeoutEvt;
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bool EAPOLKeyReceived;
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bool EAPOLKeyPairwise;
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bool EAPOLKeyRequest;
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bool MICVerified;
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bool GUpdateStationKeys;
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u8 ANonce[WPA_NONCE_LEN];
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u8 SNonce[WPA_NONCE_LEN];
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u8 alt_SNonce[WPA_NONCE_LEN];
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u8 alt_replay_counter[WPA_REPLAY_COUNTER_LEN];
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u8 PMK[PMK_LEN_MAX];
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unsigned int pmk_len;
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u8 pmkid[PMKID_LEN]; /* valid if pmkid_set == 1 */
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struct wpa_ptk PTK;
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u8 keyidx_active;
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bool use_ext_key_id;
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bool PTK_valid;
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bool pairwise_set;
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bool tk_already_set;
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int keycount;
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bool Pair;
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struct wpa_key_replay_counter {
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u8 counter[WPA_REPLAY_COUNTER_LEN];
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bool valid;
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} key_replay[RSNA_MAX_EAPOL_RETRIES],
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prev_key_replay[RSNA_MAX_EAPOL_RETRIES];
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bool PInitAKeys; /* WPA only, not in IEEE 802.11i */
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bool PTKRequest; /* not in IEEE 802.11i state machine */
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bool has_GTK;
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bool PtkGroupInit; /* init request for PTK Group state machine */
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u8 *last_rx_eapol_key; /* starting from IEEE 802.1X header */
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size_t last_rx_eapol_key_len;
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unsigned int changed:1;
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unsigned int in_step_loop:1;
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unsigned int pending_deinit:1;
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unsigned int started:1;
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unsigned int mgmt_frame_prot:1;
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unsigned int rx_eapol_key_secure:1;
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unsigned int update_snonce:1;
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unsigned int alt_snonce_valid:1;
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#ifdef CONFIG_IEEE80211R_AP
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unsigned int ft_completed:1;
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unsigned int pmk_r1_name_valid:1;
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#endif /* CONFIG_IEEE80211R_AP */
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unsigned int is_wnmsleep:1;
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unsigned int pmkid_set:1;
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#ifdef CONFIG_OCV
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unsigned int ocv_enabled:1;
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#endif /* CONFIG_OCV */
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u8 req_replay_counter[WPA_REPLAY_COUNTER_LEN];
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int req_replay_counter_used;
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u8 *wpa_ie;
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size_t wpa_ie_len;
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u8 *rsnxe;
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size_t rsnxe_len;
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enum {
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WPA_VERSION_NO_WPA = 0 /* WPA not used */,
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WPA_VERSION_WPA = 1 /* WPA / IEEE 802.11i/D3.0 */,
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WPA_VERSION_WPA2 = 2 /* WPA2 / IEEE 802.11i */
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} wpa;
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int pairwise; /* Pairwise cipher suite, WPA_CIPHER_* */
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int wpa_key_mgmt; /* the selected WPA_KEY_MGMT_* */
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struct rsn_pmksa_cache_entry *pmksa;
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u32 dot11RSNAStatsTKIPLocalMICFailures;
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u32 dot11RSNAStatsTKIPRemoteMICFailures;
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#ifdef CONFIG_IEEE80211R_AP
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u8 xxkey[PMK_LEN_MAX]; /* PSK or the second 256 bits of MSK, or the
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* first 384 bits of MSK */
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size_t xxkey_len;
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u8 pmk_r1[PMK_LEN_MAX];
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unsigned int pmk_r1_len;
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u8 pmk_r1_name[WPA_PMK_NAME_LEN]; /* PMKR1Name derived from FT Auth
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* Request */
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u8 r0kh_id[FT_R0KH_ID_MAX_LEN]; /* R0KH-ID from FT Auth Request */
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size_t r0kh_id_len;
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u8 sup_pmk_r1_name[WPA_PMK_NAME_LEN]; /* PMKR1Name from EAPOL-Key
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* message 2/4 */
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u8 *assoc_resp_ftie;
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void (*ft_pending_cb)(void *ctx, const u8 *dst, const u8 *bssid,
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u16 auth_transaction, u16 status,
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const u8 *ies, size_t ies_len);
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void *ft_pending_cb_ctx;
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struct wpabuf *ft_pending_req_ies;
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u8 ft_pending_pull_nonce[FT_RRB_NONCE_LEN];
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u8 ft_pending_auth_transaction;
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u8 ft_pending_current_ap[ETH_ALEN];
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int ft_pending_pull_left_retries;
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#endif /* CONFIG_IEEE80211R_AP */
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int pending_1_of_4_timeout;
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#ifdef CONFIG_P2P
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u8 ip_addr[4];
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#endif /* CONFIG_P2P */
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#ifdef CONFIG_FILS
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u8 fils_key_auth_sta[FILS_MAX_KEY_AUTH_LEN];
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u8 fils_key_auth_ap[FILS_MAX_KEY_AUTH_LEN];
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size_t fils_key_auth_len;
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unsigned int fils_completed:1;
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#endif /* CONFIG_FILS */
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#ifdef CONFIG_DPP2
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struct wpabuf *dpp_z;
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#endif /* CONFIG_DPP2 */
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#ifdef CONFIG_TESTING_OPTIONS
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void (*eapol_status_cb)(void *ctx1, void *ctx2);
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void *eapol_status_cb_ctx1;
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void *eapol_status_cb_ctx2;
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#endif /* CONFIG_TESTING_OPTIONS */
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};
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/* per group key state machine data */
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struct wpa_group {
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struct wpa_group *next;
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int vlan_id;
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bool GInit;
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int GKeyDoneStations;
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bool GTKReKey;
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int GTK_len;
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int GN, GM;
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bool GTKAuthenticator;
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u8 Counter[WPA_NONCE_LEN];
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enum {
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WPA_GROUP_GTK_INIT = 0,
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WPA_GROUP_SETKEYS, WPA_GROUP_SETKEYSDONE,
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WPA_GROUP_FATAL_FAILURE
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} wpa_group_state;
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u8 GMK[WPA_GMK_LEN];
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u8 GTK[2][WPA_GTK_MAX_LEN];
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u8 GNonce[WPA_NONCE_LEN];
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bool changed;
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bool first_sta_seen;
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bool reject_4way_hs_for_entropy;
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u8 IGTK[2][WPA_IGTK_MAX_LEN];
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u8 BIGTK[2][WPA_IGTK_MAX_LEN];
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int GN_igtk, GM_igtk;
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int GN_bigtk, GM_bigtk;
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/* Number of references except those in struct wpa_group->next */
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unsigned int references;
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unsigned int num_setup_iface;
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};
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struct wpa_ft_pmk_cache;
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/* per authenticator data */
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struct wpa_authenticator {
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struct wpa_group *group;
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unsigned int dot11RSNAStatsTKIPRemoteMICFailures;
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u32 dot11RSNAAuthenticationSuiteSelected;
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u32 dot11RSNAPairwiseCipherSelected;
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u32 dot11RSNAGroupCipherSelected;
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u8 dot11RSNAPMKIDUsed[PMKID_LEN];
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u32 dot11RSNAAuthenticationSuiteRequested; /* FIX: update */
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u32 dot11RSNAPairwiseCipherRequested; /* FIX: update */
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u32 dot11RSNAGroupCipherRequested; /* FIX: update */
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unsigned int dot11RSNATKIPCounterMeasuresInvoked;
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unsigned int dot11RSNA4WayHandshakeFailures;
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struct wpa_auth_config conf;
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const struct wpa_auth_callbacks *cb;
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void *cb_ctx;
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u8 *wpa_ie;
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size_t wpa_ie_len;
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u8 addr[ETH_ALEN];
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struct rsn_pmksa_cache *pmksa;
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struct wpa_ft_pmk_cache *ft_pmk_cache;
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#ifdef CONFIG_P2P
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struct bitfield *ip_pool;
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#endif /* CONFIG_P2P */
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};
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#ifdef CONFIG_IEEE80211R_AP
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#define FT_REMOTE_SEQ_BACKLOG 16
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struct ft_remote_seq_rx {
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u32 dom;
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struct os_reltime time_offset; /* local time - offset = remote time */
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/* accepted sequence numbers: (offset ... offset + 0x40000000]
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* (except those in last)
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* dropped sequence numbers: (offset - 0x40000000 ... offset]
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* all others trigger SEQ_REQ message (except first message)
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*/
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u32 last[FT_REMOTE_SEQ_BACKLOG];
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unsigned int num_last;
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u32 offsetidx;
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struct dl_list queue; /* send nonces + rrb msgs awaiting seq resp */
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};
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struct ft_remote_seq_tx {
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u32 dom; /* non zero if initialized */
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u32 seq;
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};
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struct ft_remote_seq {
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struct ft_remote_seq_rx rx;
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struct ft_remote_seq_tx tx;
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};
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#endif /* CONFIG_IEEE80211R_AP */
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int wpa_write_rsn_ie(struct wpa_auth_config *conf, u8 *buf, size_t len,
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const u8 *pmkid);
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int wpa_write_rsnxe(struct wpa_auth_config *conf, u8 *buf, size_t len);
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void wpa_auth_logger(struct wpa_authenticator *wpa_auth, const u8 *addr,
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logger_level level, const char *txt);
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void wpa_auth_vlogger(struct wpa_authenticator *wpa_auth, const u8 *addr,
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logger_level level, const char *fmt, ...)
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PRINTF_FORMAT(4, 5);
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void __wpa_send_eapol(struct wpa_authenticator *wpa_auth,
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struct wpa_state_machine *sm, int key_info,
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const u8 *key_rsc, const u8 *nonce,
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const u8 *kde, size_t kde_len,
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int keyidx, int encr, int force_version);
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int wpa_auth_for_each_sta(struct wpa_authenticator *wpa_auth,
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int (*cb)(struct wpa_state_machine *sm, void *ctx),
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void *cb_ctx);
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int wpa_auth_for_each_auth(struct wpa_authenticator *wpa_auth,
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int (*cb)(struct wpa_authenticator *a, void *ctx),
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void *cb_ctx);
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#ifdef CONFIG_IEEE80211R_AP
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int wpa_write_mdie(struct wpa_auth_config *conf, u8 *buf, size_t len);
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int wpa_write_ftie(struct wpa_auth_config *conf, int use_sha384,
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const u8 *r0kh_id, size_t r0kh_id_len,
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const u8 *anonce, const u8 *snonce,
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u8 *buf, size_t len, const u8 *subelem,
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size_t subelem_len, int rsnxe_used);
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int wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, struct wpa_ptk *ptk);
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struct wpa_ft_pmk_cache * wpa_ft_pmk_cache_init(void);
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void wpa_ft_pmk_cache_deinit(struct wpa_ft_pmk_cache *cache);
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void wpa_ft_install_ptk(struct wpa_state_machine *sm, int retry);
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int wpa_ft_store_pmk_fils(struct wpa_state_machine *sm, const u8 *pmk_r0,
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const u8 *pmk_r0_name);
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#endif /* CONFIG_IEEE80211R_AP */
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#endif /* WPA_AUTH_I_H */
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