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tport_tls.h

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/*
 * This file is part of the Sofia-SIP package
 *
 * Copyright (C) 2005 Nokia Corporation.
 *
 * Contact: Pekka Pessi <pekka.pessi@nokia.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#ifndef TPORT_TLS_H
/** Defined when <tport_tls.h> has been included. */
#define TPORT_TLS_H
/**@internal
 * @file tport_tls.h
 * @brief Internal TLS interface
 *
 * @author Mikko Haataja <ext-Mikko.A.Haataja@nokia.com>
 *
 * Copyright 2001, 2002 Nokia Research Center.  All rights reserved.
 *
 */

#ifndef SU_TYPES_H
#include <sofia-sip/su_types.h>
#endif

SOFIA_BEGIN_DECLS

#define TLS_MAX_HOSTS (16)

typedef struct tls_s tls_t;

extern char const tls_version[];

typedef struct tls_issues_s {
  int   verify_peer;    /* 0: no verify certificate, *
                         * 1: if fail the TLS/SSL handshake is terminated. */
  int   verify_depth;   /* if 0, then do nothing                      */
  int   configured;     /* If non-zero, complain about certificate errors */
  char *cert;           /* CERT file name. File format is PEM         */
  char *key;            /* Private key file. PEM format               */
  char *randFile;       /* Seed file for the PRNG (default: tls_seed.dat) */
  char *CAfile;         /* PEM file of CA's                           */
  char *CApath;         /* PEM file path of CA's                  */
  char *cipher;         /* Should be one of the above defined ciphers *
                   * or NULL (default: "ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH
                         */
  int   version;  /* For tls1, version is 1. When ssl3/ssl2 is
                   * used, it is 0. */
} tls_issues_t;

tls_t *tls_init_master(tls_issues_t *tls_issues);
tls_t *tls_init_slave(tls_t *tls_master, int sock);
tls_t *tls_init_client(tls_t *tls_master, int sock);
void tls_free(tls_t *tls);
int tls_get_socket(tls_t *tls);
ssize_t tls_read(tls_t *tls);
void *tls_read_buffer(tls_t *tls, size_t N);
int tls_want_read(tls_t *tls, int events);
int tls_pending(tls_t const *tls);

ssize_t tls_write(tls_t *tls, void *buf, size_t size);
int tls_want_write(tls_t *tls, int events);

int tls_check_hosts(tls_t *tls, char const *hosts[TLS_MAX_HOSTS]);

int tls_events(tls_t const *tls, int flags);

SOFIA_END_DECLS

#endif

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