tport_tls.h

/*
 * This file is part of the Sofia-SIP package
 *
 * Copyright (C) 2005 Nokia Corporation.
 *
 * Contact: Pekka Pessi <pekka.pessi@nokia-email.address.hidden>
 *
 * 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
#define TPORT_TLS_H
#ifndef SU_TYPES_H
#include <sofia-sip/su_types.h>
#endif
 
#include "tport_internal.h"
 
SOFIA_BEGIN_DECLS
 
#define TLS_MAX_HOSTS (16)
 
typedef struct tls_s tls_t;
 
extern char const tls_version[];
 
typedef struct tls_issues_s {
  unsigned policy;      /* refer to tport_tag.h, tport_tls_verify_policy */
  unsigned verify_depth;/* if 0, revert to default (2) */
  unsigned verify_date; /* if 0, notBefore and notAfter dates are ignored */
  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 *passphrase;     /* Passphrase for password protected private key */
  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 *ciphers;         /* Should be one of the above defined ciphers *
             * or NULL (default: !eNULL:!aNULL:!EXP:!LOW:!MD5:ALL:@STRENGTH)
                         */
  int   version;    /* For tls1, version is 1. When ssl3/ssl2 is
             * used, it is 0. */
  unsigned timeout; /* Maximum session lifetime in seconds */
} tls_issues_t;
 
typedef struct tport_tls_s {
  tport_t  tlstp_tp[1];
  tls_t   *tlstp_context;
  char    *tlstp_buffer;
} tport_tls_t;
 
typedef struct tport_tls_primary_s {
  tport_primary_t tlspri_pri[1];
  tls_t *tlspri_master;
} tport_tls_primary_t;
 
tls_t *tls_init_master(tls_issues_t *tls_issues);
tls_t *tls_init_secondary(tls_t *tls_master, int sock, int accept);
void tls_free(tls_t *tls);
int tls_get_socket(tls_t *tls);
void tls_log_errors(unsigned level, char const *s, unsigned long e);
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);
 
int tls_connect(su_root_magic_t *magic, su_wait_t *w, tport_t *self);
ssize_t tls_write(tls_t *tls, void *buf, size_t size);
int tls_want_write(tls_t *tls, int events);
 
int tls_events(tls_t const *tls, int flags);
void tls_init(void);
 
SOFIA_END_DECLS
 
#endif