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/*
* eap-tls.h
*
* Copyright (c) Beniamino Galvani 2005 All rights reserved.
* Jan Just Keijser 2006-2019 All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name(s) of the authors of this software must not be used to
* endorse or promote products derived from this software without
* prior written permission.
*
* THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifndef PPP_EAP_TLS_H
#define PPP_EAP_TLS_H
#include "pppdconf.h"
#include "eap.h"
#include <openssl/ssl.h>
#include <openssl/bio.h>
#define EAP_TLS_FLAGS_LI 128 /* length included flag */
#define EAP_TLS_FLAGS_MF 64 /* more fragments flag */
#define EAP_TLS_FLAGS_START 32 /* start flag */
#define EAP_TLS_MAX_LEN 65536 /* max eap tls packet size */
struct tls_info;
struct eaptls_session
{
u_char *data; /* buffered data */
int datalen; /* buffered data len */
int offset; /* from where to send */
int tlslen; /* total length of tls data */
bool frag; /* packet is fragmented */
bool tls_v13; /* whether we've negotiated TLSv1.3 */
SSL_CTX *ctx;
SSL *ssl; /* ssl connection */
BIO *from_ssl;
BIO *into_ssl;
char peercertfile[MAXWORDLEN];
bool alert_sent;
u_char alert_sent_desc;
bool alert_recv;
u_char alert_recv_desc;
char rtx[EAP_TLS_MAX_LEN]; /* retransmission buffer */
int rtx_len;
int mtu; /* unit mtu */
struct tls_info *info;
};
SSL_CTX *eaptls_init_ssl(int init_server, char *cacertfile, char *capath,
char *certfile, char *privkeyfile, char *pkcs12);
int eaptls_init_ssl_server(eap_state * esp);
int eaptls_init_ssl_client(eap_state * esp);
void eaptls_free_session(struct eaptls_session *ets);
int eaptls_is_init_finished(struct eaptls_session *ets);
int eaptls_receive(struct eaptls_session *ets, u_char * inp, int len);
int eaptls_send(struct eaptls_session *ets, u_char ** outp);
void eaptls_retransmit(struct eaptls_session *ets, u_char ** outp);
int get_eaptls_secret(int unit, char *client, char *server,
char *clicertfile, char *servcertfile, char *cacertfile,
char *capath, char *pkfile, char *pkcs12, int am_server);
#ifdef PPP_WITH_MPPE
void eaptls_gen_mppe_keys(struct eaptls_session *ets, int client);
#endif
#endif
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