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287 lines
7.3 KiB
C
287 lines
7.3 KiB
C
/*
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* wpa_supplicant - WPA definitions
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* Copyright (c) 2003-2005, Jouni Malinen <jkmaline@cc.hut.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#ifndef WPA_H
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#define WPA_H
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#include "defs.h"
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#define BIT(n) (1 << (n))
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struct ieee802_1x_hdr {
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u8 version;
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u8 type;
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u16 length;
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/* followed by length octets of data */
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} __attribute__ ((packed));
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#define EAPOL_VERSION 2
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enum { IEEE802_1X_TYPE_EAP_PACKET = 0,
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IEEE802_1X_TYPE_EAPOL_START = 1,
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IEEE802_1X_TYPE_EAPOL_LOGOFF = 2,
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IEEE802_1X_TYPE_EAPOL_KEY = 3,
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IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT = 4
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};
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enum { EAPOL_KEY_TYPE_RC4 = 1, EAPOL_KEY_TYPE_RSN = 2,
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EAPOL_KEY_TYPE_WPA = 254 };
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#define WPA_CAPABILITY_PREAUTH BIT(0)
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#define GENERIC_INFO_ELEM 0xdd
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#define RSN_INFO_ELEM 0x30
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enum {
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REASON_UNSPECIFIED = 1,
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REASON_DEAUTH_LEAVING = 3,
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REASON_INVALID_IE = 13,
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REASON_MICHAEL_MIC_FAILURE = 14,
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REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
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REASON_GROUP_KEY_UPDATE_TIMEOUT = 16,
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REASON_IE_IN_4WAY_DIFFERS = 17,
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REASON_GROUP_CIPHER_NOT_VALID = 18,
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REASON_PAIRWISE_CIPHER_NOT_VALID = 19,
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REASON_AKMP_NOT_VALID = 20,
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REASON_UNSUPPORTED_RSN_IE_VERSION = 21,
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REASON_INVALID_RSN_IE_CAPAB = 22,
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REASON_IEEE_802_1X_AUTH_FAILED = 23,
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REASON_CIPHER_SUITE_REJECTED = 24
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};
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#define PMKID_LEN 16
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struct wpa_sm;
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struct wpa_ssid;
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struct eapol_sm;
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struct wpa_config_blob;
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struct wpa_sm_ctx {
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void *ctx; /* pointer to arbitrary upper level context */
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void (*set_state)(void *ctx, wpa_states state);
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wpa_states (*get_state)(void *ctx);
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void (*req_scan)(void *ctx, int sec, int usec);
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void (*deauthenticate)(void * ctx, int reason_code);
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void (*disassociate)(void *ctx, int reason_code);
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int (*set_key)(void *ctx, wpa_alg alg,
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const u8 *addr, int key_idx, int set_tx,
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const u8 *seq, size_t seq_len,
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const u8 *key, size_t key_len);
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void (*scan)(void *eloop_ctx, void *timeout_ctx);
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struct wpa_ssid * (*get_ssid)(void *ctx);
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int (*get_bssid)(void *ctx, u8 *bssid);
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int (*ether_send)(void *ctx, const u8 *dest, u16 proto, const u8 *buf,
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size_t len);
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int (*get_beacon_ie)(void *ctx);
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void (*cancel_auth_timeout)(void *ctx);
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u8 * (*alloc_eapol)(void *ctx, u8 type, const void *data, u16 data_len,
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size_t *msg_len, void **data_pos);
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int (*add_pmkid)(void *ctx, const u8 *bssid, const u8 *pmkid);
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int (*remove_pmkid)(void *ctx, const u8 *bssid, const u8 *pmkid);
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void (*set_config_blob)(void *ctx, struct wpa_config_blob *blob);
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const struct wpa_config_blob * (*get_config_blob)(void *ctx,
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const char *name);
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};
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enum wpa_sm_conf_params {
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RSNA_PMK_LIFETIME /* dot11RSNAConfigPMKLifetime */,
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RSNA_PMK_REAUTH_THRESHOLD /* dot11RSNAConfigPMKReauthThreshold */,
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RSNA_SA_TIMEOUT /* dot11RSNAConfigSATimeout */,
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WPA_PARAM_PROTO,
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WPA_PARAM_PAIRWISE,
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WPA_PARAM_GROUP,
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WPA_PARAM_KEY_MGMT
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};
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struct wpa_ie_data {
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int proto;
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int pairwise_cipher;
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int group_cipher;
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int key_mgmt;
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int capabilities;
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int num_pmkid;
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const u8 *pmkid;
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};
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#ifndef CONFIG_NO_WPA
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struct wpa_sm * wpa_sm_init(struct wpa_sm_ctx *ctx);
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void wpa_sm_deinit(struct wpa_sm *sm);
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void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid);
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void wpa_sm_notify_disassoc(struct wpa_sm *sm);
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void wpa_sm_set_pmk(struct wpa_sm *sm, const u8 *pmk, size_t pmk_len);
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void wpa_sm_set_pmk_from_pmksa(struct wpa_sm *sm);
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void wpa_sm_set_fast_reauth(struct wpa_sm *sm, int fast_reauth);
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void wpa_sm_set_scard_ctx(struct wpa_sm *sm, void *scard_ctx);
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void wpa_sm_set_config(struct wpa_sm *sm, struct wpa_ssid *config);
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void wpa_sm_set_own_addr(struct wpa_sm *sm, const u8 *addr);
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void wpa_sm_set_ifname(struct wpa_sm *sm, const char *ifname);
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void wpa_sm_set_eapol(struct wpa_sm *sm, struct eapol_sm *eapol);
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int wpa_sm_set_assoc_wpa_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
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int wpa_sm_set_assoc_wpa_ie_default(struct wpa_sm *sm, u8 *wpa_ie,
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size_t *wpa_ie_len);
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int wpa_sm_set_ap_wpa_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
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int wpa_sm_set_ap_rsn_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
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int wpa_sm_get_mib(struct wpa_sm *sm, char *buf, size_t buflen);
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int wpa_sm_set_param(struct wpa_sm *sm, enum wpa_sm_conf_params param,
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unsigned int value);
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unsigned int wpa_sm_get_param(struct wpa_sm *sm,
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enum wpa_sm_conf_params param);
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int wpa_sm_get_status(struct wpa_sm *sm, char *buf, size_t buflen,
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int verbose);
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void wpa_sm_key_request(struct wpa_sm *sm, int error, int pairwise);
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int wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len,
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struct wpa_ie_data *data);
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int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr,
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const u8 *buf, size_t len);
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int wpa_sm_parse_own_wpa_ie(struct wpa_sm *sm, struct wpa_ie_data *data);
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#else /* CONFIG_NO_WPA */
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static inline struct wpa_sm * wpa_sm_init(struct wpa_sm_ctx *ctx)
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{
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return (struct wpa_sm *) 1;
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}
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static inline void wpa_sm_deinit(struct wpa_sm *sm)
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{
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}
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static inline void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid)
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{
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}
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static inline void wpa_sm_notify_disassoc(struct wpa_sm *sm)
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{
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}
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static inline void wpa_sm_set_pmk(struct wpa_sm *sm, const u8 *pmk,
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size_t pmk_len)
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{
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}
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static inline void wpa_sm_set_pmk_from_pmksa(struct wpa_sm *sm)
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{
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}
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static inline void wpa_sm_set_fast_reauth(struct wpa_sm *sm, int fast_reauth)
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{
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}
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static inline void wpa_sm_set_scard_ctx(struct wpa_sm *sm, void *scard_ctx)
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{
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}
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static inline void wpa_sm_set_config(struct wpa_sm *sm,
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struct wpa_ssid *config)
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{
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}
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static inline void wpa_sm_set_own_addr(struct wpa_sm *sm, const u8 *addr)
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{
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}
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static inline void wpa_sm_set_ifname(struct wpa_sm *sm, const char *ifname)
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{
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}
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static inline void wpa_sm_set_eapol(struct wpa_sm *sm, struct eapol_sm *eapol)
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{
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}
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static inline int wpa_sm_set_assoc_wpa_ie(struct wpa_sm *sm, const u8 *ie,
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size_t len)
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{
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return -1;
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}
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static inline int wpa_sm_set_assoc_wpa_ie_default(struct wpa_sm *sm,
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u8 *wpa_ie,
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size_t *wpa_ie_len)
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{
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return -1;
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}
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static inline int wpa_sm_set_ap_wpa_ie(struct wpa_sm *sm, const u8 *ie,
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size_t len)
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{
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return -1;
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}
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static inline int wpa_sm_set_ap_rsn_ie(struct wpa_sm *sm, const u8 *ie,
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size_t len)
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{
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return -1;
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}
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static inline int wpa_sm_get_mib(struct wpa_sm *sm, char *buf, size_t buflen)
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{
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return 0;
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}
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static inline int wpa_sm_set_param(struct wpa_sm *sm,
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enum wpa_sm_conf_params param,
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unsigned int value)
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{
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return -1;
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}
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static inline unsigned int wpa_sm_get_param(struct wpa_sm *sm,
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enum wpa_sm_conf_params param)
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{
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return 0;
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}
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static inline int wpa_sm_get_status(struct wpa_sm *sm, char *buf,
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size_t buflen, int verbose)
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{
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return 0;
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}
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static inline void wpa_sm_key_request(struct wpa_sm *sm, int error,
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int pairwise)
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{
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}
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static inline int wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len,
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struct wpa_ie_data *data)
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{
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return -1;
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}
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static inline int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr,
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const u8 *buf, size_t len)
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{
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return -1;
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}
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static inline int wpa_sm_parse_own_wpa_ie(struct wpa_sm *sm,
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struct wpa_ie_data *data)
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{
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return -1;
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}
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#endif /* CONFIG_NO_WPA */
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#endif /* WPA_H */
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