LCOM1920-T02G10

/* ssl/kssl.h -*- mode: C; c-file-style: "eay" -*- */

/*

 * Written by Vern Staats <staatsvr@asc.hpc.mil> for the OpenSSL project

 * 2000. project 2000.

 */

/* ====================================================================

 * Copyright (c) 2000 The OpenSSL Project.  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. All advertising materials mentioning features or use of this

 *    software must display the following acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

 *

 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

 *    endorse or promote products derived from this software without

 *    prior written permission. For written permission, please contact

 *    licensing@OpenSSL.org.

 *

 * 5. Products derived from this software may not be called "OpenSSL"

 *    nor may "OpenSSL" appear in their names without prior written

 *    permission of the OpenSSL Project.

 *

 * 6. Redistributions of any form whatsoever must retain the following

 *    acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

 *

 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR

 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

 * OF THE POSSIBILITY OF SUCH DAMAGE.

 * ====================================================================

 *

 * This product includes cryptographic software written by Eric Young

 * (eay@cryptsoft.com).  This product includes software written by Tim

 * Hudson (tjh@cryptsoft.com).

 *

 */

/*

 **      19990701        VRS     Started.

 */

#ifndef KSSL_H

# define KSSL_H

# include <openssl/opensslconf.h>

# ifndef OPENSSL_NO_KRB5

#  include <stdio.h>

#  include <ctype.h>

#  include <krb5.h>

#  ifdef OPENSSL_SYS_WIN32

/*

 * These can sometimes get redefined indirectly by krb5 header files after

 * they get undefed in ossl_typ.h

 */

#   undef X509_NAME

#   undef X509_EXTENSIONS

#   undef OCSP_REQUEST

#   undef OCSP_RESPONSE

#  endif

#ifdef  __cplusplus

extern "C" {

#endif

/*

 *      Depending on which KRB5 implementation used, some types from

 *      the other may be missing.  Resolve that here and now

 */

#  ifdef KRB5_HEIMDAL

typedef unsigned char krb5_octet;

#   define FAR

#  else

#   ifndef FAR

#    define FAR

#   endif

#  endif

/*-

 *      Uncomment this to debug kssl problems or

 *      to trace usage of the Kerberos session key

 *

 *      #define         KSSL_DEBUG

 */

#  ifndef KRB5SVC

#   define KRB5SVC "host"

#  endif

#  ifndef KRB5KEYTAB

#   define KRB5KEYTAB      "/etc/krb5.keytab"

#  endif

#  ifndef KRB5SENDAUTH

#   define KRB5SENDAUTH    1

#  endif

#  ifndef KRB5CHECKAUTH

#   define KRB5CHECKAUTH   1

#  endif

#  ifndef KSSL_CLOCKSKEW

#   define KSSL_CLOCKSKEW  300;

#  endif

#  define KSSL_ERR_MAX    255

typedef struct kssl_err_st {

    int reason;

    char text[KSSL_ERR_MAX + 1];

} KSSL_ERR;

/*-     Context for passing

 *              (1) Kerberos session key to SSL, and

 *              (2)     Config data between application and SSL lib

 */

typedef struct kssl_ctx_st {

    /*      used by:    disposition:            */

    char *service_name;         /* C,S default ok (kssl) */

    char *service_host;         /* C input, REQUIRED */

    char *client_princ;         /* S output from krb5 ticket */

    char *keytab_file;          /* S NULL (/etc/krb5.keytab) */

    char *cred_cache;           /* C NULL (default) */

    krb5_enctype enctype;

    int length;

    krb5_octet FAR *key;

} KSSL_CTX;

#  define KSSL_CLIENT     1

#  define KSSL_SERVER     2

#  define KSSL_SERVICE    3

#  define KSSL_KEYTAB     4

#  define KSSL_CTX_OK     0

#  define KSSL_CTX_ERR    1

#  define KSSL_NOMEM      2

/* Public (for use by applications that use OpenSSL with Kerberos 5 support */

krb5_error_code kssl_ctx_setstring(KSSL_CTX *kssl_ctx, int which, char *text);

KSSL_CTX *kssl_ctx_new(void);

KSSL_CTX *kssl_ctx_free(KSSL_CTX *kssl_ctx);

void kssl_ctx_show(KSSL_CTX *kssl_ctx);

krb5_error_code kssl_ctx_setprinc(KSSL_CTX *kssl_ctx, int which,

                                  krb5_data *realm, krb5_data *entity,

                                  int nentities);

krb5_error_code kssl_cget_tkt(KSSL_CTX *kssl_ctx, krb5_data **enc_tktp,

                              krb5_data *authenp, KSSL_ERR *kssl_err);

krb5_error_code kssl_sget_tkt(KSSL_CTX *kssl_ctx, krb5_data *indata,

                              krb5_ticket_times *ttimes, KSSL_ERR *kssl_err);

krb5_error_code kssl_ctx_setkey(KSSL_CTX *kssl_ctx, krb5_keyblock *session);

void kssl_err_set(KSSL_ERR *kssl_err, int reason, char *text);

void kssl_krb5_free_data_contents(krb5_context context, krb5_data *data);

krb5_error_code kssl_build_principal_2(krb5_context context,

                                       krb5_principal *princ, int rlen,

                                       const char *realm, int slen,

                                       const char *svc, int hlen,

                                       const char *host);

krb5_error_code kssl_validate_times(krb5_timestamp atime,

                                    krb5_ticket_times *ttimes);

krb5_error_code kssl_check_authent(KSSL_CTX *kssl_ctx, krb5_data *authentp,

                                   krb5_timestamp *atimep,

                                   KSSL_ERR *kssl_err);

unsigned char *kssl_skip_confound(krb5_enctype enctype, unsigned char *authn);

void SSL_set0_kssl_ctx(SSL *s, KSSL_CTX *kctx);

KSSL_CTX *SSL_get0_kssl_ctx(SSL *s);

char *kssl_ctx_get0_client_princ(KSSL_CTX *kctx);

#ifdef  __cplusplus

}

#endif

# endif                         /* OPENSSL_NO_KRB5 */

#endif                          /* KSSL_H */