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/*
* hostapd - IEEE 802.11i-2004 / WPA Authenticator
* Copyright (c) 2004-2017, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef WPA_AUTH_H
#define WPA_AUTH_H
#include "common/defs.h"
#include "common/eapol_common.h"
#include "common/wpa_common.h"
#include "common/ieee802_11_defs.h"
struct vlan_description;
#define MAX_OWN_IE_OVERRIDE 256
#ifdef _MSC_VER
#pragma pack(push, 1)
#endif /* _MSC_VER */
/* IEEE Std 802.11r-2008, 11A.10.3 - Remote request/response frame definition
*/
struct ft_rrb_frame {
u8 frame_type; /* RSN_REMOTE_FRAME_TYPE_FT_RRB */
u8 packet_type; /* FT_PACKET_REQUEST/FT_PACKET_RESPONSE */
le16 action_length; /* little endian length of action_frame */
u8 ap_address[ETH_ALEN];
/*
* Followed by action_length bytes of FT Action frame (from Category
* field to the end of Action Frame body.
*/
} STRUCT_PACKED;
#define RSN_REMOTE_FRAME_TYPE_FT_RRB 1
#define FT_PACKET_REQUEST 0
#define FT_PACKET_RESPONSE 1
/* Vendor-specific types for R0KH-R1KH protocol; not defined in 802.11r. These
* use OUI Extended EtherType as the encapsulating format. */
#define FT_PACKET_R0KH_R1KH_PULL 0x01
#define FT_PACKET_R0KH_R1KH_RESP 0x02
#define FT_PACKET_R0KH_R1KH_PUSH 0x03
#define FT_PACKET_R0KH_R1KH_SEQ_REQ 0x04
#define FT_PACKET_R0KH_R1KH_SEQ_RESP 0x05
/* packet layout
* IEEE 802 extended OUI ethertype frame header
* u16 authlen (little endian)
* multiple of struct ft_rrb_tlv (authenticated only, length = authlen)
* multiple of struct ft_rrb_tlv (AES-SIV encrypted, AES-SIV needs an extra
* blocksize length)
*
* AES-SIV AAD;
* source MAC address (6)
* authenticated-only TLVs (authlen)
* subtype (1; FT_PACKET_*)
*/
#define FT_RRB_NONCE_LEN 16
#define FT_RRB_LAST_EMPTY 0 /* placeholder or padding */
#define FT_RRB_SEQ 1 /* struct ft_rrb_seq */
#define FT_RRB_NONCE 2 /* size FT_RRB_NONCE_LEN */
#define FT_RRB_TIMESTAMP 3 /* le32 unix seconds */
#define FT_RRB_R0KH_ID 4 /* FT_R0KH_ID_MAX_LEN */
#define FT_RRB_R1KH_ID 5 /* FT_R1KH_ID_LEN */
#define FT_RRB_S1KH_ID 6 /* ETH_ALEN */
#define FT_RRB_PMK_R0_NAME 7 /* WPA_PMK_NAME_LEN */
#define FT_RRB_PMK_R0 8 /* PMK_LEN */
#define FT_RRB_PMK_R1_NAME 9 /* WPA_PMK_NAME_LEN */
#define FT_RRB_PMK_R1 10 /* PMK_LEN */
#define FT_RRB_PAIRWISE 11 /* le16 */
#define FT_RRB_EXPIRES_IN 12 /* le16 seconds */
#define FT_RRB_VLAN_UNTAGGED 13 /* le16 */
#define FT_RRB_VLAN_TAGGED 14 /* n times le16 */
#define FT_RRB_IDENTITY 15
#define FT_RRB_RADIUS_CUI 16
#define FT_RRB_SESSION_TIMEOUT 17 /* le32 seconds */
struct ft_rrb_tlv {
le16 type;
le16 len;
/* followed by data of length len */
} STRUCT_PACKED;
struct ft_rrb_seq {
le32 dom;
le32 seq;
le32 ts;
} STRUCT_PACKED;
/* session TLVs:
* required: PMK_R1, PMK_R1_NAME, PAIRWISE
* optional: VLAN_UNTAGGED, VLAN_TAGGED, EXPIRES_IN, IDENTITY, RADIUS_CUI,
* SESSION_TIMEOUT
*
* pull frame TLVs:
* auth:
* required: SEQ, NONCE, R0KH_ID, R1KH_ID
* encrypted:
* required: PMK_R0_NAME, S1KH_ID
*
* response frame TLVs:
* auth:
* required: SEQ, NONCE, R0KH_ID, R1KH_ID
* encrypted:
* required: S1KH_ID
* optional: session TLVs
*
* push frame TLVs:
* auth:
* required: SEQ, R0KH_ID, R1KH_ID
* encrypted:
* required: S1KH_ID, PMK_R0_NAME, session TLVs
*
* sequence number request frame TLVs:
* auth:
* required: R0KH_ID, R1KH_ID, NONCE
*
* sequence number response frame TLVs:
* auth:
* required: SEQ, NONCE, R0KH_ID, R1KH_ID
*/
#ifdef _MSC_VER
#pragma pack(pop)
#endif /* _MSC_VER */
/* per STA state machine data */
struct wpa_authenticator;
struct wpa_state_machine;
struct rsn_pmksa_cache_entry;
struct eapol_state_machine;
struct ft_remote_seq;
struct ft_remote_r0kh {
struct ft_remote_r0kh *next;
u8 addr[ETH_ALEN];
u8 id[FT_R0KH_ID_MAX_LEN];
size_t id_len;
u8 key[32];
struct ft_remote_seq *seq;
};
struct ft_remote_r1kh {
struct ft_remote_r1kh *next;
u8 addr[ETH_ALEN];
u8 id[FT_R1KH_ID_LEN];
u8 key[32];
struct ft_remote_seq *seq;
};
struct wpa_auth_config {
int wpa;
int wpa_key_mgmt;
int wpa_pairwise;
int wpa_group;
int wpa_group_rekey;
int wpa_strict_rekey;
int wpa_gmk_rekey;
int wpa_ptk_rekey;
u32 wpa_group_update_count;
u32 wpa_pairwise_update_count;
int wpa_disable_eapol_key_retries;
int rsn_pairwise;
int rsn_preauth;
int eapol_version;
int wmm_enabled;
int wmm_uapsd;
int disable_pmksa_caching;
int okc;
int tx_status;
#ifdef CONFIG_IEEE80211W
enum mfp_options ieee80211w;
int group_mgmt_cipher;
int sae_require_mfp;
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_IEEE80211R_AP
u8 ssid[SSID_MAX_LEN];
size_t ssid_len;
u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN];
u8 r0_key_holder[FT_R0KH_ID_MAX_LEN];
size_t r0_key_holder_len;
u8 r1_key_holder[FT_R1KH_ID_LEN];
u32 r0_key_lifetime; /* PMK-R0 lifetime seconds */
int rkh_pos_timeout;
int rkh_neg_timeout;
int rkh_pull_timeout; /* ms */
int rkh_pull_retries;
int r1_max_key_lifetime;
u32 reassociation_deadline;
struct ft_remote_r0kh **r0kh_list;
struct ft_remote_r1kh **r1kh_list;
int pmk_r1_push;
int ft_over_ds;
int ft_psk_generate_local;
#endif /* CONFIG_IEEE80211R_AP */
int disable_gtk;
int ap_mlme;
#ifdef CONFIG_TESTING_OPTIONS
double corrupt_gtk_rekey_mic_probability;
u8 own_ie_override[MAX_OWN_IE_OVERRIDE];
size_t own_ie_override_len;
#endif /* CONFIG_TESTING_OPTIONS */
#ifdef CONFIG_P2P
u8 ip_addr_go[4];
u8 ip_addr_mask[4];
u8 ip_addr_start[4];
u8 ip_addr_end[4];
#endif /* CONFIG_P2P */
#ifdef CONFIG_FILS
unsigned int fils_cache_id_set:1;
u8 fils_cache_id[FILS_CACHE_ID_LEN];
#endif /* CONFIG_FILS */
};
typedef enum {
LOGGER_DEBUG, LOGGER_INFO, LOGGER_WARNING
} logger_level;
typedef enum {
WPA_EAPOL_portEnabled, WPA_EAPOL_portValid, WPA_EAPOL_authorized,
WPA_EAPOL_portControl_Auto, WPA_EAPOL_keyRun, WPA_EAPOL_keyAvailable,
WPA_EAPOL_keyDone, WPA_EAPOL_inc_EapolFramesTx
} wpa_eapol_variable;
struct wpa_auth_callbacks {
void (*logger)(void *ctx, const u8 *addr, logger_level level,
const char *txt);
void (*disconnect)(void *ctx, const u8 *addr, u16 reason);
int (*mic_failure_report)(void *ctx, const u8 *addr);
void (*psk_failure_report)(void *ctx, const u8 *addr);
void (*set_eapol)(void *ctx, const u8 *addr, wpa_eapol_variable var,
int value);
int (*get_eapol)(void *ctx, const u8 *addr, wpa_eapol_variable var);
const u8 * (*get_psk)(void *ctx, const u8 *addr, const u8 *p2p_dev_addr,
const u8 *prev_psk, size_t *psk_len);
int (*get_msk)(void *ctx, const u8 *addr, u8 *msk, size_t *len);
int (*set_key)(void *ctx, int vlan_id, enum wpa_alg alg,
const u8 *addr, int idx, u8 *key, size_t key_len);
int (*get_seqnum)(void *ctx, const u8 *addr, int idx, u8 *seq);
int (*send_eapol)(void *ctx, const u8 *addr, const u8 *data,
size_t data_len, int encrypt);
int (*for_each_sta)(void *ctx, int (*cb)(struct wpa_state_machine *sm,
void *ctx), void *cb_ctx);
int (*for_each_auth)(void *ctx, int (*cb)(struct wpa_authenticator *a,
void *ctx), void *cb_ctx);
int (*send_ether)(void *ctx, const u8 *dst, u16 proto, const u8 *data,
size_t data_len);
int (*send_oui)(void *ctx, const u8 *dst, u8 oui_suffix, const u8 *data,
size_t data_len);
#ifdef CONFIG_IEEE80211R_AP
struct wpa_state_machine * (*add_sta)(void *ctx, const u8 *sta_addr);
int (*set_vlan)(void *ctx, const u8 *sta_addr,
struct vlan_description *vlan);
int (*get_vlan)(void *ctx, const u8 *sta_addr,
struct vlan_description *vlan);
int (*set_identity)(void *ctx, const u8 *sta_addr,
const u8 *identity, size_t identity_len);
size_t (*get_identity)(void *ctx, const u8 *sta_addr, const u8 **buf);
int (*set_radius_cui)(void *ctx, const u8 *sta_addr,
const u8 *radius_cui, size_t radius_cui_len);
size_t (*get_radius_cui)(void *ctx, const u8 *sta_addr, const u8 **buf);
void (*set_session_timeout)(void *ctx, const u8 *sta_addr,
int session_timeout);
int (*get_session_timeout)(void *ctx, const u8 *sta_addr);
int (*send_ft_action)(void *ctx, const u8 *dst,
const u8 *data, size_t data_len);
int (*add_tspec)(void *ctx, const u8 *sta_addr, u8 *tspec_ie,
size_t tspec_ielen);
#endif /* CONFIG_IEEE80211R_AP */
#ifdef CONFIG_MESH
int (*start_ampe)(void *ctx, const u8 *sta_addr);
#endif /* CONFIG_MESH */
};
struct wpa_authenticator * wpa_init(const u8 *addr,
struct wpa_auth_config *conf,
const struct wpa_auth_callbacks *cb,
void *cb_ctx);
int wpa_init_keys(struct wpa_authenticator *wpa_auth);
void wpa_deinit(struct wpa_authenticator *wpa_auth);
int wpa_reconfig(struct wpa_authenticator *wpa_auth,
struct wpa_auth_config *conf);
enum {
WPA_IE_OK, WPA_INVALID_IE, WPA_INVALID_GROUP, WPA_INVALID_PAIRWISE,
WPA_INVALID_AKMP, WPA_NOT_ENABLED, WPA_ALLOC_FAIL,
WPA_MGMT_FRAME_PROTECTION_VIOLATION, WPA_INVALID_MGMT_GROUP_CIPHER,
WPA_INVALID_MDIE, WPA_INVALID_PROTO, WPA_INVALID_PMKID
};
int wpa_validate_wpa_ie(struct wpa_authenticator *wpa_auth,
struct wpa_state_machine *sm,
const u8 *wpa_ie, size_t wpa_ie_len,
const u8 *mdie, size_t mdie_len,
const u8 *owe_dh, size_t owe_dh_len);
int wpa_validate_osen(struct wpa_authenticator *wpa_auth,
struct wpa_state_machine *sm,
const u8 *osen_ie, size_t osen_ie_len);
int wpa_auth_uses_mfp(struct wpa_state_machine *sm);
struct wpa_state_machine *
wpa_auth_sta_init(struct wpa_authenticator *wpa_auth, const u8 *addr,
const u8 *p2p_dev_addr);
int wpa_auth_sta_associated(struct wpa_authenticator *wpa_auth,
struct wpa_state_machine *sm);
void wpa_auth_sta_no_wpa(struct wpa_state_machine *sm);
void wpa_auth_sta_deinit(struct wpa_state_machine *sm);
void wpa_receive(struct wpa_authenticator *wpa_auth,
struct wpa_state_machine *sm,
u8 *data, size_t data_len);
enum wpa_event {
WPA_AUTH, WPA_ASSOC, WPA_DISASSOC, WPA_DEAUTH, WPA_REAUTH,
WPA_REAUTH_EAPOL, WPA_ASSOC_FT, WPA_ASSOC_FILS, WPA_DRV_STA_REMOVED
};
void wpa_remove_ptk(struct wpa_state_machine *sm);
int wpa_auth_sm_event(struct wpa_state_machine *sm, enum wpa_event event);
void wpa_auth_sm_notify(struct wpa_state_machine *sm);
void wpa_gtk_rekey(struct wpa_authenticator *wpa_auth);
int wpa_get_mib(struct wpa_authenticator *wpa_auth, char *buf, size_t buflen);
int wpa_get_mib_sta(struct wpa_state_machine *sm, char *buf, size_t buflen);
void wpa_auth_countermeasures_start(struct wpa_authenticator *wpa_auth);
int wpa_auth_pairwise_set(struct wpa_state_machine *sm);
int wpa_auth_get_pairwise(struct wpa_state_machine *sm);
int wpa_auth_sta_key_mgmt(struct wpa_state_machine *sm);
int wpa_auth_sta_wpa_version(struct wpa_state_machine *sm);
int wpa_auth_sta_ft_tk_already_set(struct wpa_state_machine *sm);
int wpa_auth_sta_fils_tk_already_set(struct wpa_state_machine *sm);
int wpa_auth_sta_clear_pmksa(struct wpa_state_machine *sm,
struct rsn_pmksa_cache_entry *entry);
struct rsn_pmksa_cache_entry *
wpa_auth_sta_get_pmksa(struct wpa_state_machine *sm);
void wpa_auth_sta_local_mic_failure_report(struct wpa_state_machine *sm);
const u8 * wpa_auth_get_wpa_ie(struct wpa_authenticator *wpa_auth,
size_t *len);
int wpa_auth_pmksa_add(struct wpa_state_machine *sm, const u8 *pmk,
unsigned int pmk_len,
int session_timeout, struct eapol_state_machine *eapol);
int wpa_auth_pmksa_add_preauth(struct wpa_authenticator *wpa_auth,
const u8 *pmk, size_t len, const u8 *sta_addr,
int session_timeout,
struct eapol_state_machine *eapol);
int wpa_auth_pmksa_add_sae(struct wpa_authenticator *wpa_auth, const u8 *addr,
const u8 *pmk, const u8 *pmkid);
void wpa_auth_add_sae_pmkid(struct wpa_state_machine *sm, const u8 *pmkid);
int wpa_auth_pmksa_add2(struct wpa_authenticator *wpa_auth, const u8 *addr,
const u8 *pmk, size_t pmk_len, const u8 *pmkid,
int session_timeout, int akmp);
void wpa_auth_pmksa_remove(struct wpa_authenticator *wpa_auth,
const u8 *sta_addr);
int wpa_auth_pmksa_list(struct wpa_authenticator *wpa_auth, char *buf,
size_t len);
void wpa_auth_pmksa_flush(struct wpa_authenticator *wpa_auth);
int wpa_auth_pmksa_list_mesh(struct wpa_authenticator *wpa_auth, const u8 *addr,
char *buf, size_t len);
struct rsn_pmksa_cache_entry *
wpa_auth_pmksa_create_entry(const u8 *aa, const u8 *spa, const u8 *pmk,
const u8 *pmkid, int expiration);
int wpa_auth_pmksa_add_entry(struct wpa_authenticator *wpa_auth,
struct rsn_pmksa_cache_entry *entry);
struct rsn_pmksa_cache_entry *
wpa_auth_pmksa_get(struct wpa_authenticator *wpa_auth, const u8 *sta_addr,
const u8 *pmkid);
struct rsn_pmksa_cache_entry *
wpa_auth_pmksa_get_fils_cache_id(struct wpa_authenticator *wpa_auth,
const u8 *sta_addr, const u8 *pmkid);
void wpa_auth_pmksa_set_to_sm(struct rsn_pmksa_cache_entry *pmksa,
struct wpa_state_machine *sm,
struct wpa_authenticator *wpa_auth,
u8 *pmkid, u8 *pmk);
int wpa_auth_sta_set_vlan(struct wpa_state_machine *sm, int vlan_id);
void wpa_auth_eapol_key_tx_status(struct wpa_authenticator *wpa_auth,
struct wpa_state_machine *sm, int ack);
#ifdef CONFIG_IEEE80211R_AP
u8 * wpa_sm_write_assoc_resp_ies(struct wpa_state_machine *sm, u8 *pos,
size_t max_len, int auth_alg,
const u8 *req_ies, size_t req_ies_len);
void wpa_ft_process_auth(struct wpa_state_machine *sm, const u8 *bssid,
u16 auth_transaction, const u8 *ies, size_t ies_len,
void (*cb)(void *ctx, const u8 *dst, const u8 *bssid,
u16 auth_transaction, u16 resp,
const u8 *ies, size_t ies_len),
void *ctx);
u16 wpa_ft_validate_reassoc(struct wpa_state_machine *sm, const u8 *ies,
size_t ies_len);
int wpa_ft_action_rx(struct wpa_state_machine *sm, const u8 *data, size_t len);
int wpa_ft_rrb_rx(struct wpa_authenticator *wpa_auth, const u8 *src_addr,
const u8 *data, size_t data_len);
void wpa_ft_rrb_oui_rx(struct wpa_authenticator *wpa_auth, const u8 *src_addr,
const u8 *dst_addr, u8 oui_suffix, const u8 *data,
size_t data_len);
void wpa_ft_push_pmk_r1(struct wpa_authenticator *wpa_auth, const u8 *addr);
void wpa_ft_deinit(struct wpa_authenticator *wpa_auth);
void wpa_ft_sta_deinit(struct wpa_state_machine *sm);
#endif /* CONFIG_IEEE80211R_AP */
void wpa_wnmsleep_rekey_gtk(struct wpa_state_machine *sm);
void wpa_set_wnmsleep(struct wpa_state_machine *sm, int flag);
int wpa_wnmsleep_gtk_subelem(struct wpa_state_machine *sm, u8 *pos);
int wpa_wnmsleep_igtk_subelem(struct wpa_state_machine *sm, u8 *pos);
int wpa_auth_uses_sae(struct wpa_state_machine *sm);
int wpa_auth_uses_ft_sae(struct wpa_state_machine *sm);
int wpa_auth_get_ip_addr(struct wpa_state_machine *sm, u8 *addr);
struct radius_das_attrs;
int wpa_auth_radius_das_disconnect_pmksa(struct wpa_authenticator *wpa_auth,
struct radius_das_attrs *attr);
void wpa_auth_reconfig_group_keys(struct wpa_authenticator *wpa_auth);
int wpa_auth_ensure_group(struct wpa_authenticator *wpa_auth, int vlan_id);
int wpa_auth_release_group(struct wpa_authenticator *wpa_auth, int vlan_id);
int fils_auth_pmk_to_ptk(struct wpa_state_machine *sm, const u8 *pmk,
size_t pmk_len, const u8 *snonce, const u8 *anonce,
const u8 *dhss, size_t dhss_len,
struct wpabuf *g_sta, struct wpabuf *g_ap);
int fils_decrypt_assoc(struct wpa_state_machine *sm, const u8 *fils_session,
const struct ieee80211_mgmt *mgmt, size_t frame_len,
u8 *pos, size_t left);
int fils_encrypt_assoc(struct wpa_state_machine *sm, u8 *buf,
size_t current_len, size_t max_len,
const struct wpabuf *hlp);
int fils_set_tk(struct wpa_state_machine *sm);
u8 * hostapd_eid_assoc_fils_session(struct wpa_state_machine *sm, u8 *eid,
const u8 *fils_session,
struct wpabuf *fils_hlp_resp);
const u8 * wpa_fils_validate_fils_session(struct wpa_state_machine *sm,
const u8 *ies, size_t ies_len,
const u8 *fils_session);
int wpa_fils_validate_key_confirm(struct wpa_state_machine *sm, const u8 *ies,
size_t ies_len);
int wpa_auth_write_fte(struct wpa_authenticator *wpa_auth, int use_sha384,
u8 *buf, size_t len);
void wpa_auth_get_fils_aead_params(struct wpa_state_machine *sm,
u8 *fils_anonce, u8 *fils_snonce,
u8 *fils_kek, size_t *fils_kek_len);
u8 * wpa_auth_write_assoc_resp_owe(struct wpa_state_machine *sm,
u8 *pos, size_t max_len,
const u8 *req_ies, size_t req_ies_len);
int wpa_auth_resend_m1(struct wpa_state_machine *sm, int change_anonce,
void (*cb)(void *ctx1, void *ctx2),
void *ctx1, void *ctx2);
int wpa_auth_resend_m3(struct wpa_state_machine *sm,
void (*cb)(void *ctx1, void *ctx2),
void *ctx1, void *ctx2);
int wpa_auth_resend_group_m1(struct wpa_state_machine *sm,
void (*cb)(void *ctx1, void *ctx2),
void *ctx1, void *ctx2);
int wpa_auth_rekey_gtk(struct wpa_authenticator *wpa_auth);
#endif /* WPA_AUTH_H */
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