hostapd/src/eap_server/eap_tls_common.h

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/*
* hostapd / EAP-TLS/PEAP/TTLS/FAST common functions
* Copyright (c) 2004-2008, 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 EAP_TLS_COMMON_H
#define EAP_TLS_COMMON_H
struct eap_ssl_data {
struct tls_connection *conn;
size_t tls_out_limit;
int phase2;
struct eap_sm *eap;
enum { MSG, FRAG_ACK, WAIT_FRAG_ACK } state;
struct wpabuf *in_buf;
struct wpabuf *out_buf;
size_t out_used;
struct wpabuf tmpbuf;
};
/* EAP TLS Flags */
#define EAP_TLS_FLAGS_LENGTH_INCLUDED 0x80
#define EAP_TLS_FLAGS_MORE_FRAGMENTS 0x40
#define EAP_TLS_FLAGS_START 0x20
#define EAP_PEAP_VERSION_MASK 0x07
/* could be up to 128 bytes, but only the first 64 bytes are used */
#define EAP_TLS_KEY_LEN 64
int eap_server_tls_ssl_init(struct eap_sm *sm, struct eap_ssl_data *data,
int verify_peer);
void eap_server_tls_ssl_deinit(struct eap_sm *sm, struct eap_ssl_data *data);
u8 * eap_server_tls_derive_key(struct eap_sm *sm, struct eap_ssl_data *data,
char *label, size_t len);
struct wpabuf * eap_server_tls_build_msg(struct eap_ssl_data *data,
int eap_type, int peap_version,
u8 id);
struct wpabuf * eap_server_tls_build_ack(u8 id, int eap_type,
int peap_version);
int eap_server_tls_phase1(struct eap_sm *sm, struct eap_ssl_data *data);
int eap_server_tls_reassemble(struct eap_ssl_data *data, u8 flags,
const u8 **pos, size_t *left);
void eap_server_tls_free_in_buf(struct eap_ssl_data *data);
struct wpabuf * eap_server_tls_encrypt(struct eap_sm *sm,
struct eap_ssl_data *data,
const u8 *plain, size_t plain_len);
#endif /* EAP_TLS_COMMON_H */