/*
 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
 */
/*
 * Copyright (C) 1989,1990,1991,1992,1993,1994,1995,2000,2001, 2003,2006,2009 by the Massachusetts Institute of Technology,
 * Cambridge, MA, USA.  All Rights Reserved.
 *
 * This software is being provided to you, the LICENSEE, by the
 * Massachusetts Institute of Technology (M.I.T.) under the following
 * license.  By obtaining, using and/or copying this software, you agree
 * that you have read, understood, and will comply with these terms and
 * conditions:
 *
 * Export of this software from the United States of America may
 * require a specific license from the United States Government.
 * It is the responsibility of any person or organization contemplating
 * export to obtain such a license before exporting.
 *
 * WITHIN THAT CONSTRAINT, permission to use, copy, modify and distribute
 * this software and its documentation for any purpose and without fee or
 * royalty is hereby granted, provided that you agree to comply with the
 * following copyright notice and statements, including the disclaimer, and
 * that the same appear on ALL copies of the software and documentation,
 * including modifications that you make for internal use or for
 * distribution:
 *
 * THIS SOFTWARE IS PROVIDED "AS IS", AND M.I.T. MAKES NO REPRESENTATIONS
 * OR WARRANTIES, EXPRESS OR IMPLIED.  By way of example, but not
 * limitation, M.I.T. MAKES NO REPRESENTATIONS OR WARRANTIES OF
 * MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF
 * THE LICENSED SOFTWARE OR DOCUMENTATION WILL NOT INFRINGE ANY THIRD PARTY
 * PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS.
 *
 * The name of the Massachusetts Institute of Technology or M.I.T. may NOT
 * be used in advertising or publicity pertaining to distribution of the
 * software.  Title to copyright in this software and any associated
 * documentation shall at all times remain with M.I.T., and USER agrees to
 * preserve same.
 *
 * Furthermore if you modify this software you must label
 * your software as modified software and not distribute it in such a
 * fashion that it might be confused with the original M.I.T. software.
 */

/*
 * Copyright (C) 1998 by the FundsXpress, INC.
 *
 * All rights reserved.
 *
 * Export of this software from the United States of America may require
 * a specific license from the United States Government.  It is the
 * responsibility of any person or organization contemplating export to
 * obtain such a license before exporting.
 *
 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
 * distribute this software and its documentation for any purpose and
 * without fee is hereby granted, provided that the above copyright
 * notice appear in all copies and that both that copyright notice and
 * this permission notice appear in supporting documentation, and that
 * the name of FundsXpress. not be used in advertising or publicity pertaining
 * to distribution of the software without specific, written prior
 * permission.  FundsXpress makes no representations about the suitability of
 * this software for any purpose.  It is provided "as is" without express
 * or implied warranty.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

/*
 * This prototype for k5-int.h (Krb5 internals include file)
 * includes the user-visible definitions from krb5.h and then
 * includes other definitions that are not user-visible but are
 * required for compiling Kerberos internal routines.
 *
 * John Gilmore, Cygnus Support, Sat Jan 21 22:45:52 PST 1995
 */

#ifndef _KRB5_INT_H
#define _KRB5_INT_H

#ifdef KRB5_GENERAL__
#error krb5.h included before k5-int.h
#endif /* KRB5_GENERAL__ */

#ifndef _KERNEL
#include <osconf.h>
#include <security/cryptoki.h>
#else
#include <sys/crypto/common.h>
#include <sys/crypto/api.h>
#endif

#ifdef  DEBUG
#if !defined(KRB5_DEBUG)
#define KRB5_DEBUG
#endif
#ifndef  KRB5_LOG_LVL
#define KRB5_LOG_LVL KRB5_ERR
#endif
#endif  /* DEBUG */

#ifdef  _KERNEL

#ifdef  DEBUG
#include        <sys/types.h>
#include        <sys/cmn_err.h>
 extern  void prom_printf();
#endif  /* DEBUG */

#else   /* !_KERNEL */

#define prom_printf printf

#endif /* !_KERNEL */

#ifdef KRB5_LOG_LVL

/* krb5_log is used to set the logging level to determine what class of messages
 * are output by the mech.  Note, more than one logging level can be used by
 * bit or'ing the log values together.
 *
 * All log messages are captured by syslog.
 */

extern unsigned int krb5_log;

/* Note, these defines should be mutually exclusive bit fields */
#define KRB5_ERR  1   /* Use this debug log level for error path logging. */
#define KRB5_INFO 2   /* Use this debug log level for informational messages. */

#ifdef  _KERNEL

#define KRB5_LOG1(A, B, C, D) \
     ((void)((krb5_log) && (krb5_log & (A)) && (printf((B), (C), (D)), TRUE)))
#define KRB5_LOG(A, B, C) \
     ((void)((krb5_log) && (krb5_log & (A)) && (printf((B), (C)), TRUE)))
#define KRB5_LOG0(A, B)   \
     ((void)((krb5_log) && (krb5_log & (A)) && (printf((B)), TRUE)))

#else   /* !_KERNEL */

#include <syslog.h>

#define KRB5_LOG1(A, B, C, D) \
        ((void)((krb5_log) && (krb5_log & (A)) && \
                (syslog(LOG_DEBUG, (B), (C), (D)), TRUE)))
#define KRB5_LOG(A, B, C) \
        ((void)((krb5_log) && (krb5_log & (A)) && \
                (syslog(LOG_DEBUG, (B), (C)), TRUE)))
#define KRB5_LOG0(A, B)   \
        ((void)((krb5_log) && (krb5_log & (A)) && \
                (syslog(LOG_DEBUG, B), TRUE)))

#endif  /* _KERNEL */

#else /* ! KRB5_LOG_LVL */

#define KRB5_LOG1(A, B, C, D)
#define KRB5_LOG(A, B, C)
#define KRB5_LOG0(A, B)

#endif /* KRB5_LOG_LVL */

#ifdef POSIX_TYPES
#define timetype time_t
#else
#define timetype long
#endif

/*
 * Begin "k5-config.h"
 */
#ifndef KRB5_CONFIG__
#define KRB5_CONFIG__

/*
 * Machine-type definitions: PC Clone 386 running Microloss Windows
 */

#if defined(_MSDOS) || defined(_WIN32)
#include "win-mac.h"

/* Kerberos Windows initialization file */
#define KERBEROS_INI    "kerberos.ini"
#define INI_FILES       "Files"
#define INI_KRB_CCACHE  "krb5cc"        /* Location of the ccache */
#define INI_KRB5_CONF   "krb5.ini"      /* Location of krb5.conf file */
#define ANSI_STDIO
#endif

#ifndef _KERNEL
#ifndef KRB5_AUTOCONF__
#define KRB5_AUTOCONF__
#include "autoconf.h"
#endif
#endif          /* !_KERNEL  */

#ifndef KRB5_SYSTYPES__
#define KRB5_SYSTYPES__

#ifndef _KERNEL
#ifdef HAVE_SYS_TYPES_H         /* From autoconf.h */
#include <sys/types.h>
#else /* HAVE_SYS_TYPES_H */
typedef unsigned long   u_long;
typedef unsigned int    u_int;
typedef unsigned short  u_short;
typedef unsigned char   u_char;
#endif /* HAVE_SYS_TYPES_H */
#endif /* KRB5_SYSTYPES__ */
#endif          /* !_KERNEL  */


/* #include "k5-platform.h" SUNW XXX */
/* not used in krb5.h (yet) */
typedef uint64_t krb5_ui_8;
typedef int64_t krb5_int64;



#define DEFAULT_PWD_STRING1 "Enter password:"
#define DEFAULT_PWD_STRING2 "Re-enter password for verification:"
#define KRB5_KDB_MAX_LIFE       (60*60*24) /* one day */
#define KRB5_KDB_MAX_RLIFE      (60*60*24*365) /* one year */
#define KRB5_KDB_EXPIRATION     2145830400 /* Thu Jan  1 00:00:00 2038 UTC */
#define KRB5_DEFAULT_LIFE 60*60*10 /* 10 hours */
#define KRB5_DEFAULT_RENEW_LIFE 7*24*60*60 /* 7 Days */

/*
 * Windows requires a different api interface to each function. Here
 * just define it as NULL.
 */
#ifndef KRB5_CALLCONV
#define KRB5_CALLCONV
#define KRB5_CALLCONV_C
#endif
#ifndef O_BINARY
#define O_BINARY 0
#endif

#endif /* KRB5_CONFIG__ */

/*
 * End "k5-config.h"
 */

/*
 * After loading the configuration definitions, load the Kerberos definitions.
 */
#ifndef _KERNEL
#include <errno.h>
#include "profile.h"
#endif

#include <krb5.h>

#ifndef _KERNEL
#if 1 /* def NEED_SOCKETS */
#include <port-sockets.h>
#include <socket-utils.h>
#else
#ifndef SOCK_DGRAM
struct sockaddr;
#endif
#endif
#endif

/* Get mutex support; currently used only for the replay cache.  */
#include "k5-thread.h"


/* krb5/krb5.h includes many other .h files in the krb5 subdirectory.
   The ones that it doesn't include, we include below.  */

/*
 * Begin "k5-errors.h"
 */
#ifndef KRB5_ERRORS__
#define KRB5_ERRORS__


/* Error codes used in KRB_ERROR protocol messages.
   Return values of library routines are based on a different error table
   (which allows non-ambiguous error codes between subsystems) */

/* KDC errors */
#define KDC_ERR_NONE                    0 /* No error */
#define KDC_ERR_NAME_EXP                1 /* Client's entry in DB expired */
#define KDC_ERR_SERVICE_EXP             2 /* Server's entry in DB expired */
#define KDC_ERR_BAD_PVNO                3 /* Requested pvno not supported */
#define KDC_ERR_C_OLD_MAST_KVNO         4 /* C's key encrypted in old master */
#define KDC_ERR_S_OLD_MAST_KVNO         5 /* S's key encrypted in old master */
#define KDC_ERR_C_PRINCIPAL_UNKNOWN     6 /* Client not found in Kerberos DB */
#define KDC_ERR_S_PRINCIPAL_UNKNOWN     7 /* Server not found in Kerberos DB */
#define KDC_ERR_PRINCIPAL_NOT_UNIQUE    8 /* Multiple entries in Kerberos DB */
#define KDC_ERR_NULL_KEY                9 /* The C or S has a null key */
#define KDC_ERR_CANNOT_POSTDATE         10 /* Tkt ineligible for postdating */
#define KDC_ERR_NEVER_VALID             11 /* Requested starttime > endtime */
#define KDC_ERR_POLICY                  12 /* KDC policy rejects request */
#define KDC_ERR_BADOPTION               13 /* KDC can't do requested opt. */
#define KDC_ERR_ENCTYPE_NOSUPP          14 /* No support for encryption type */
#define KDC_ERR_SUMTYPE_NOSUPP          15 /* No support for checksum type */
#define KDC_ERR_PADATA_TYPE_NOSUPP      16 /* No support for padata type */
#define KDC_ERR_TRTYPE_NOSUPP           17 /* No support for transited type */
#define KDC_ERR_CLIENT_REVOKED          18 /* C's creds have been revoked */
#define KDC_ERR_SERVICE_REVOKED         19 /* S's creds have been revoked */
#define KDC_ERR_TGT_REVOKED             20 /* TGT has been revoked */
#define KDC_ERR_CLIENT_NOTYET           21 /* C not yet valid */
#define KDC_ERR_SERVICE_NOTYET          22 /* S not yet valid */
#define KDC_ERR_KEY_EXP                 23 /* Password has expired */
#define KDC_ERR_PREAUTH_FAILED          24 /* Preauthentication failed */
#define KDC_ERR_PREAUTH_REQUIRED        25 /* Additional preauthentication */
                                           /* required */
#define KDC_ERR_SERVER_NOMATCH          26 /* Requested server and */
                                           /* ticket don't match*/
#define KDC_ERR_MUST_USE_USER2USER      27 /* Server principal valid for */
                                           /*   user2user only */
#define KDC_ERR_PATH_NOT_ACCEPTED       28 /* KDC policy rejected transited */
                                           /*   path */
#define KDC_ERR_SVC_UNAVAILABLE         29 /* A service is not
                                            * available that is
                                            * required to process the
                                            * request */
/* Application errors */
#define KRB_AP_ERR_BAD_INTEGRITY 31     /* Decrypt integrity check failed */
#define KRB_AP_ERR_TKT_EXPIRED  32      /* Ticket expired */
#define KRB_AP_ERR_TKT_NYV      33      /* Ticket not yet valid */
#define KRB_AP_ERR_REPEAT       34      /* Request is a replay */
#define KRB_AP_ERR_NOT_US       35      /* The ticket isn't for us */
#define KRB_AP_ERR_BADMATCH     36      /* Ticket/authenticator don't match */
#define KRB_AP_ERR_SKEW         37      /* Clock skew too great */
#define KRB_AP_ERR_BADADDR      38      /* Incorrect net address */
#define KRB_AP_ERR_BADVERSION   39      /* Protocol version mismatch */
#define KRB_AP_ERR_MSG_TYPE     40      /* Invalid message type */
#define KRB_AP_ERR_MODIFIED     41      /* Message stream modified */
#define KRB_AP_ERR_BADORDER     42      /* Message out of order */
#define KRB_AP_ERR_BADKEYVER    44      /* Key version is not available */
#define KRB_AP_ERR_NOKEY        45      /* Service key not available */
#define KRB_AP_ERR_MUT_FAIL     46      /* Mutual authentication failed */
#define KRB_AP_ERR_BADDIRECTION 47      /* Incorrect message direction */
#define KRB_AP_ERR_METHOD       48      /* Alternative authentication */
                                        /* method required */
#define KRB_AP_ERR_BADSEQ       49      /* Incorrect sequence numnber */
                                        /* in message */
#define KRB_AP_ERR_INAPP_CKSUM  50      /* Inappropriate type of */
                                        /* checksum in message */
#define KRB_AP_PATH_NOT_ACCEPTED 51     /* Policy rejects transited path */
#define KRB_ERR_RESPONSE_TOO_BIG 52     /* Response too big for UDP, */
                                        /*   retry with TCP */

/* other errors */
#define KRB_ERR_GENERIC         60      /* Generic error (description */
                                        /* in e-text) */
#define KRB_ERR_FIELD_TOOLONG   61      /* Field is too long for impl. */

/* PKINIT server-reported errors */
#define KDC_ERR_CLIENT_NOT_TRUSTED              62 /* client cert not trusted */
#define KDC_ERR_INVALID_SIG                     64 /* client signature verify failed */
#define KDC_ERR_DH_KEY_PARAMETERS_NOT_ACCEPTED  65 /* invalid Diffie-Hellman parameters */
#define KDC_ERR_CERTIFICATE_MISMATCH            66
#define KRB_AP_ERR_NO_TGT                       67
#define KDC_ERR_WRONG_REALM                     68
#define KRB_AP_ERR_USER_TO_USER_REQUIRED        69
#define KDC_ERR_CANT_VERIFY_CERTIFICATE         70 /* client cert not verifiable
 to */
                                                   /* trusted root cert */
#define KDC_ERR_INVALID_CERTIFICATE             71 /* client cert had invalid signature */
#define KDC_ERR_REVOKED_CERTIFICATE             72 /* client cert was revoked */
#define KDC_ERR_REVOCATION_STATUS_UNKNOWN       73 /* client cert revoked, reason unknown */
#define KDC_ERR_CLIENT_NAME_MISMATCH            75 /* mismatch between client cert and */
                                                   /* principal name */
#define KDC_ERR_INCONSISTENT_KEY_PURPOSE        77 /* bad extended key use */
#define KDC_ERR_DIGEST_IN_CERT_NOT_ACCEPTED     78 /* bad digest algorithm in client cert */
#define KDC_ERR_PA_CHECKSUM_MUST_BE_INCLUDED    79 /* missing paChecksum in PA-PK-AS-REQ */
#define KDC_ERR_DIGEST_IN_SIGNED_DATA_NOT_ACCEPTED 80 /* bad digest algorithm in SignedData */
#define KDC_ERR_PUBLIC_KEY_ENCRYPTION_NOT_SUPPORTED 81

#endif /* KRB5_ERRORS__ */
/*
 * End "k5-errors.h"
 */

/*
 * This structure is returned in the e-data field of the KRB-ERROR
 * message when the error calling for an alternative form of
 * authentication is returned, KRB_AP_METHOD.
 */
typedef struct _krb5_alt_method {
        krb5_magic      magic;
        krb5_int32      method;
        unsigned int    length;
        krb5_octet      *data;
} krb5_alt_method;

/*
 * A null-terminated array of this structure is returned by the KDC as
 * the data part of the ETYPE_INFO preauth type.  It informs the
 * client which encryption types are supported.
 * The  same data structure is used by both etype-info and etype-info2
 * but s2kparams must be null when encoding etype-info.
 */
typedef struct _krb5_etype_info_entry {
        krb5_magic      magic;
        krb5_enctype    etype;
        unsigned int    length;
        krb5_octet      *salt;
    krb5_data s2kparams;
} krb5_etype_info_entry;

/*
 *  This is essentially -1 without sign extension which can screw up
 *  comparisons on 64 bit machines. If the length is this value, then
 *  the salt data is not present. This is to distinguish between not
 *  being set and being of 0 length.
 */
#define KRB5_ETYPE_NO_SALT VALID_UINT_BITS

typedef krb5_etype_info_entry ** krb5_etype_info;

/* RFC 4537 */
typedef struct _krb5_etype_list {
        int             length;
        krb5_enctype    *etypes;
} krb5_etype_list;

/*
 * a sam_challenge is returned for alternate preauth
 */
/*
          SAMFlags ::= BIT STRING {
              use-sad-as-key[0],
              send-encrypted-sad[1],
              must-pk-encrypt-sad[2]
          }
 */
/*
          PA-SAM-CHALLENGE ::= SEQUENCE {
              sam-type[0]                 INTEGER,
              sam-flags[1]                SAMFlags,
              sam-type-name[2]            GeneralString OPTIONAL,
              sam-track-id[3]             GeneralString OPTIONAL,
              sam-challenge-label[4]      GeneralString OPTIONAL,
              sam-challenge[5]            GeneralString OPTIONAL,
              sam-response-prompt[6]      GeneralString OPTIONAL,
              sam-pk-for-sad[7]           EncryptionKey OPTIONAL,
              sam-nonce[8]                INTEGER OPTIONAL,
              sam-cksum[9]                Checksum OPTIONAL
          }
*/
/* sam_type values -- informational only */
#define PA_SAM_TYPE_ENIGMA     1   /*  Enigma Logic */
#define PA_SAM_TYPE_DIGI_PATH  2   /*  Digital Pathways */
#define PA_SAM_TYPE_SKEY_K0    3   /*  S/key where  KDC has key 0 */
#define PA_SAM_TYPE_SKEY       4   /*  Traditional S/Key */
#define PA_SAM_TYPE_SECURID    5   /*  Security Dynamics */
#define PA_SAM_TYPE_CRYPTOCARD 6   /*  CRYPTOCard */
#if 1 /* XXX need to figure out who has which numbers assigned */
#define PA_SAM_TYPE_ACTIVCARD_DEC  6   /*  ActivCard decimal mode */
#define PA_SAM_TYPE_ACTIVCARD_HEX  7   /*  ActivCard hex mode */
#define PA_SAM_TYPE_DIGI_PATH_HEX  8   /*  Digital Pathways hex mode */
#endif
#define PA_SAM_TYPE_EXP_BASE    128 /* experimental */
#define PA_SAM_TYPE_GRAIL               (PA_SAM_TYPE_EXP_BASE+0) /* testing */
#define PA_SAM_TYPE_SECURID_PREDICT     (PA_SAM_TYPE_EXP_BASE+1) /* special */

typedef struct _krb5_predicted_sam_response {
        krb5_magic      magic;
        krb5_keyblock   sam_key;
        krb5_flags      sam_flags; /* Makes key munging easier */
        krb5_timestamp  stime;  /* time on server, for replay detection */
        krb5_int32      susec;
        krb5_principal  client;
        krb5_data       msd;    /* mechanism specific data */
} krb5_predicted_sam_response;

typedef struct _krb5_sam_challenge {
        krb5_magic      magic;
        krb5_int32      sam_type; /* information */
        krb5_flags      sam_flags; /* KRB5_SAM_* values */
        krb5_data       sam_type_name;
        krb5_data       sam_track_id;
        krb5_data       sam_challenge_label;
        krb5_data       sam_challenge;
        krb5_data       sam_response_prompt;
        krb5_data       sam_pk_for_sad;
        krb5_int32      sam_nonce;
        krb5_checksum   sam_cksum;
} krb5_sam_challenge;

typedef struct _krb5_sam_key {  /* reserved for future use */
        krb5_magic      magic;
        krb5_keyblock   sam_key;
} krb5_sam_key;

typedef struct _krb5_enc_sam_response_enc {
        krb5_magic      magic;
        krb5_int32      sam_nonce;
        krb5_timestamp  sam_timestamp;
        krb5_int32      sam_usec;
        krb5_data       sam_sad;
} krb5_enc_sam_response_enc;

typedef struct _krb5_sam_response {
        krb5_magic      magic;
        krb5_int32      sam_type; /* informational */
        krb5_flags      sam_flags; /* KRB5_SAM_* values */
        krb5_data       sam_track_id; /* copied */
        krb5_enc_data   sam_enc_key; /* krb5_sam_key - future use */
        krb5_enc_data   sam_enc_nonce_or_ts; /* krb5_enc_sam_response_enc */
        krb5_int32      sam_nonce;
        krb5_timestamp  sam_patimestamp;
} krb5_sam_response;

typedef struct _krb5_sam_challenge_2 {
        krb5_data       sam_challenge_2_body;
        krb5_checksum   **sam_cksum;            /* Array of checksums */
} krb5_sam_challenge_2;

typedef struct _krb5_sam_challenge_2_body {
        krb5_magic      magic;
        krb5_int32      sam_type; /* information */
        krb5_flags      sam_flags; /* KRB5_SAM_* values */
        krb5_data       sam_type_name;
        krb5_data       sam_track_id;
        krb5_data       sam_challenge_label;
        krb5_data       sam_challenge;
        krb5_data       sam_response_prompt;
        krb5_data       sam_pk_for_sad;
        krb5_int32      sam_nonce;
        krb5_enctype    sam_etype;
} krb5_sam_challenge_2_body;

typedef struct _krb5_sam_response_2 {
        krb5_magic      magic;
        krb5_int32      sam_type; /* informational */
        krb5_flags      sam_flags; /* KRB5_SAM_* values */
        krb5_data       sam_track_id; /* copied */
        krb5_enc_data   sam_enc_nonce_or_sad; /* krb5_enc_sam_response_enc */
        krb5_int32      sam_nonce;
} krb5_sam_response_2;

typedef struct _krb5_enc_sam_response_enc_2 {
        krb5_magic      magic;
        krb5_int32      sam_nonce;
        krb5_data       sam_sad;
} krb5_enc_sam_response_enc_2;

/*
 * Keep the pkinit definitions in a separate file so that the plugin
 * only has to include k5-int-pkinit.h rather than k5-int.h
 */

#include "k5-int-pkinit.h"

/*
 * Begin "dbm.h"
 */
#ifndef _KERNEL

/*
 * Since we are always using db, use the db-ndbm include header file.
 */

#include "db-ndbm.h"

#endif /* !KERNEL */
/*
 * End "dbm.h"
 */

/*
 * Begin "ext-proto.h"
 */
#ifndef KRB5_EXT_PROTO__
#define KRB5_EXT_PROTO__

#ifndef _KERNEL
#include <stdlib.h>
#include <string.h>
#endif /* !_KERNEL */

#ifndef HAVE_STRDUP
extern char *strdup (const char *);
#endif

#ifndef _KERNEL
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#endif /* !_KERNEL */

#endif /* KRB5_EXT_PROTO__ */
/*
 * End "ext-proto.h"
 */

/*
 * Begin "sysincl.h"
 */
#ifndef KRB5_SYSINCL__
#define KRB5_SYSINCL__

#ifndef KRB5_SYSTYPES__
#define KRB5_SYSTYPES__
/* needed for much of the rest -- but already handled in krb5.h? */
/* #include <sys/types.h> */
#endif /* KRB5_SYSTYPES__ */

#ifdef  _KERNEL
#include <sys/time.h>
#else
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#ifdef TIME_WITH_SYS_TIME
#include <time.h>
#endif
#else
#include <time.h>
#endif
#endif /* _KERNEL */

#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>                   /* struct stat, stat() */
#endif

#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>                  /* MAXPATHLEN */
#endif

#ifdef HAVE_SYS_FILE_H
#include <sys/file.h>                   /* prototypes for file-related
                                           syscalls; flags for open &
                                           friends */
#endif

#ifdef _KERNEL
#include <sys/fcntl.h>
#else
#include <fcntl.h>
#endif

#endif /* KRB5_SYSINCL__ */
/*
 * End "sysincl.h"
 */

/*
 * Begin "los-proto.h"
 */
#ifndef KRB5_LIBOS_PROTO__
#define KRB5_LIBOS_PROTO__
#endif

#ifndef _KERNEL
#include <stdio.h>

struct addrlist;
struct sendto_callback_info;
#endif

/* libos.spec */
krb5_error_code krb5_lock_file (krb5_context, int, int);
krb5_error_code krb5_unlock_file (krb5_context, int);
krb5_error_code krb5_sendto_kdc (krb5_context, const krb5_data *,
                                 const krb5_data *, krb5_data *, int *, int);
/* Solaris Kerberos */
krb5_error_code krb5_sendto_kdc2 (krb5_context, const krb5_data *,
                                const krb5_data *, krb5_data *, int *, int,
                                char **);


krb5_error_code krb5_get_krbhst (krb5_context, const krb5_data *, char *** );
krb5_error_code krb5_free_krbhst (krb5_context, char * const * );
krb5_error_code krb5_create_secure_file (krb5_context, const char * pathname);

int krb5_net_read (krb5_context, int , char *, int);

int krb5_net_write
        (krb5_context, int , const char *, int);


krb5_error_code krb5_gen_replay_name
    (krb5_context, const krb5_address *, const char *, char **);


#ifndef _KERNEL

krb5_error_code krb5_sync_disk_file (krb5_context, FILE *fp);

krb5_error_code
krb5_open_pkcs11_session(CK_SESSION_HANDLE *);


krb5_error_code krb5_read_message
        (krb5_context, krb5_pointer, krb5_data *);

krb5_error_code krb5_write_message
        (krb5_context, krb5_pointer, krb5_data *);
krb5_error_code krb5int_sendto (krb5_context context, const krb5_data *message,
                const struct addrlist *addrs, struct sendto_callback_info* callback_info,
                                krb5_data *reply, struct sockaddr *localaddr, socklen_t *localaddrlen,
                struct sockaddr *remoteaddr, socklen_t *remoteaddrlen, int *addr_used,
                int (*msg_handler)(krb5_context, const krb5_data *, void *),
                void *msg_handler_data);

krb5_error_code krb5int_get_fq_local_hostname (char *, size_t);

krb5_error_code krb5_set_debugging_time
        (krb5_context, krb5_timestamp, krb5_int32);
krb5_error_code krb5_use_natural_time
        (krb5_context);
krb5_error_code krb5_set_time_offsets
        (krb5_context, krb5_timestamp, krb5_int32);
krb5_error_code krb5int_check_clockskew(krb5_context, krb5_timestamp);
#endif

/*
 * Solaris Kerberos
 * The following two functions are needed for better realm
 * determination based on the DNS domain name.
 */
krb5_error_code krb5int_lookup_host(int , const char *, char **);

krb5_error_code krb5int_domain_get_realm(krb5_context, const char *,
    char **);
krb5_error_code krb5int_fqdn_get_realm(krb5_context, const char *,
    char **);

krb5_error_code krb5int_init_context_kdc(krb5_context *);

krb5_error_code krb5_os_init_context (krb5_context, krb5_boolean);

void krb5_os_free_context (krb5_context);

/* This function is needed by KfM's KerberosPreferences API
 * because it needs to be able to specify "secure" */
#ifndef _KERNEL
krb5_error_code os_get_default_config_files
    (profile_filespec_t **pfiles, krb5_boolean secure);
#endif

krb5_error_code krb5_os_hostaddr
        (krb5_context, const char *, krb5_address ***);

#ifndef _KERNEL
/* N.B.: You need to include fake-addrinfo.h *before* k5-int.h if you're
   going to use this structure.  */
struct addrlist {
    struct {
#ifdef FAI_DEFINED
        struct addrinfo *ai;
#else
        struct undefined_addrinfo *ai;
#endif
        void (*freefn)(void *);
        void *data;
    } *addrs;
    int naddrs;
    int space;
};
#define ADDRLIST_INIT { 0, 0, 0 }
extern void krb5int_free_addrlist (struct addrlist *);
extern int krb5int_grow_addrlist (struct addrlist *, int);
extern int krb5int_add_host_to_list (struct addrlist *, const char *,
                                     int, int, int, int);

#include <locate_plugin.h>
krb5_error_code
krb5int_locate_server (krb5_context, const krb5_data *realm,
                       struct addrlist *, enum locate_service_type svc,
                       int sockettype, int family);

#endif /* _KERNEL */

/* new encryption provider api */

struct krb5_enc_provider {
    /* keybytes is the input size to make_key;
       keylength is the output size */
    size_t block_size, keybytes, keylength;

    /* cipher-state == 0 fresh state thrown away at end */
    krb5_error_code (*encrypt) (
        krb5_context context,
        krb5_const krb5_keyblock *key, krb5_const krb5_data *ivec,
        krb5_const krb5_data *input, krb5_data *output);

    krb5_error_code (*decrypt) (
        krb5_context context,
        krb5_const krb5_keyblock *key, krb5_const krb5_data *ivec,
        krb5_const krb5_data *input, krb5_data *output);

    krb5_error_code (*make_key)
    (krb5_context, krb5_const krb5_data *, krb5_keyblock *);

    krb5_error_code (*init_state) (krb5_context,
                        const krb5_keyblock *,
                        krb5_keyusage, krb5_data *);
    krb5_error_code (*free_state) (krb5_context, krb5_data *);

};

struct krb5_hash_provider {
    size_t hashsize, blocksize;

    /* this takes multiple inputs to avoid lots of copying. */
    krb5_error_code (*hash) (krb5_context context,
        unsigned int icount, krb5_const krb5_data *input,
        krb5_data *output);
};

struct krb5_keyhash_provider {
    size_t hashsize;

    krb5_error_code (*hash) (
        krb5_context context,
        krb5_const krb5_keyblock *key,
        krb5_keyusage keyusage,
        krb5_const krb5_data *ivec,
        krb5_const krb5_data *input, krb5_data *output);

    krb5_error_code (*verify) (
        krb5_context context,
        krb5_const krb5_keyblock *key,
        krb5_keyusage keyusage,
        krb5_const krb5_data *ivec,
        krb5_const krb5_data *input,
        krb5_const krb5_data *hash,
        krb5_boolean *valid);

};

typedef void (*krb5_encrypt_length_func) (const struct krb5_enc_provider *enc,
  const struct krb5_hash_provider *hash,
  size_t inputlen, size_t *length);

typedef krb5_error_code (*krb5_crypt_func) (
  krb5_context context,
  krb5_const struct krb5_enc_provider *enc,
  krb5_const struct krb5_hash_provider *hash,
  krb5_const krb5_keyblock *key, krb5_keyusage usage,
  krb5_const krb5_data *ivec,
  krb5_const krb5_data *input, krb5_data *output);

#ifndef _KERNEL
typedef krb5_error_code (*krb5_str2key_func) (
  krb5_context context,
  krb5_const struct krb5_enc_provider *enc, krb5_const krb5_data *string,
  krb5_const krb5_data *salt, krb5_const krb5_data *params,
  krb5_keyblock *key);
#endif  /* _KERNEL */

typedef krb5_error_code (*krb5_prf_func)(
                                         const struct krb5_enc_provider *enc,
                                         const struct krb5_hash_provider *hash,
                                         const krb5_keyblock *key,
                                         const krb5_data *in, krb5_data *out);

struct krb5_keytypes {
    krb5_enctype etype;
    char *in_string;
    char *out_string;
    const struct krb5_enc_provider *enc;
    const struct krb5_hash_provider *hash;
    krb5_encrypt_length_func encrypt_len;
    krb5_crypt_func encrypt;
    krb5_crypt_func decrypt;
    krb5_cksumtype required_ctype;
#ifndef _KERNEL
    /* Solaris Kerberos:  strings to key conversion not done in the kernel */
    krb5_str2key_func str2key;
#else   /* _KERNEL */
    char *mt_e_name;
    char *mt_h_name;
    crypto_mech_type_t kef_cipher_mt;
    crypto_mech_type_t kef_hash_mt;
#endif  /* _KERNEL */
};

struct krb5_cksumtypes {
    krb5_cksumtype ctype;
    unsigned int flags;
    char *in_string;
    char *out_string;
    /* if the hash is keyed, this is the etype it is keyed with.
       Actually, it can be keyed by any etype which has the same
       enc_provider as the specified etype.  DERIVE checksums can
       be keyed with any valid etype. */
    krb5_enctype keyed_etype;
    /* I can't statically initialize a union, so I'm just going to use
       two pointers here.  The keyhash is used if non-NULL.  If NULL,
       then HMAC/hash with derived keys is used if the relevant flag
       is set.  Otherwise, a non-keyed hash is computed.  This is all
       kind of messy, but so is the krb5 api. */
    const struct krb5_keyhash_provider *keyhash;
    const struct krb5_hash_provider *hash;
    /* This just gets uglier and uglier.  In the key derivation case,
       we produce an hmac.  To make the hmac code work, we can't hack
       the output size indicated by the hash provider, but we may want
       a truncated hmac.  If we want truncation, this is the number of
       bytes we truncate to; it should be 0 otherwise.  */
    unsigned int trunc_size;
#ifdef _KERNEL
    char *mt_c_name;
    crypto_mech_type_t kef_cksum_mt;
#endif /* _KERNEL */
};

#define KRB5_CKSUMFLAG_DERIVE           0x0001
#define KRB5_CKSUMFLAG_NOT_COLL_PROOF   0x0002

/*
 * in here to deal with stuff from lib/crypto
 */

void krb5_nfold
(unsigned int inbits, const unsigned char *in,
                unsigned int outbits, unsigned char *out);

krb5_error_code krb5int_pbkdf2_hmac_sha1 (krb5_context,
                                           const krb5_data *,
                                           unsigned long,
                                           krb5_enctype,
                                           const krb5_data *,
                                           const krb5_data *);

/* Make this a function eventually?  */
#ifdef _WIN32
# define krb5int_zap_data(ptr, len) SecureZeroMemory(ptr, len)
#elif defined(__palmos__) && !defined(__GNUC__)
/* CodeWarrior 8.3 complains about passing a pointer to volatile in to
   memset.  On the other hand, we probably want it for gcc.  */
# define krb5int_zap_data(ptr, len) memset(ptr, 0, len)
#else
# define krb5int_zap_data(ptr, len) memset((void *)ptr, 0, len)
# if defined(__GNUC__) && defined(__GLIBC__)
/* GNU libc generates multiple bogus initialization warnings if we
   pass memset a volatile pointer.  The compiler should do well enough
   with memset even without GNU libc's attempt at optimization.  */
# undef memset
# endif
#endif /* WIN32 */
#define zap(p,l) krb5int_zap_data(p,l)


krb5_error_code krb5int_des_init_state
( krb5_context,
        const krb5_keyblock *,
        krb5_keyusage, krb5_data *);

krb5_error_code krb5int_c_mandatory_cksumtype(
        krb5_context,
        krb5_enctype,
        krb5_cksumtype *);

/*
 * normally to free a cipher_state you can just memset the length to zero and
 * free it.
 */
krb5_error_code krb5int_default_free_state
(krb5_context, krb5_data *);


/*
 * Combine two keys (normally used by the hardware preauth mechanism)
 */
krb5_error_code krb5int_c_combine_keys
(krb5_context context, krb5_keyblock *key1, krb5_keyblock *key2,
                krb5_keyblock *outkey);


#ifdef _KERNEL

int k5_ef_crypto(
        const char *, char *,
        long, krb5_keyblock *,
        const krb5_data *, int);

krb5_error_code
krb5_hmac(krb5_context, const krb5_keyblock *,
        krb5_const krb5_data *, krb5_data *);

#else
krb5_error_code krb5_hmac
        (krb5_context,
        krb5_const struct krb5_hash_provider *,
        krb5_const krb5_keyblock *, krb5_const unsigned int,
        krb5_const krb5_data *, krb5_data *);

#endif /* _KERNEL */


/*
 * These declarations are here, so both krb5 and k5crypto
 * can get to them.
 * krb5 needs to get to them so it can  make them available to libgssapi.
 */
extern const struct krb5_enc_provider krb5int_enc_arcfour;
extern const struct krb5_hash_provider krb5int_hash_md5;


/* #ifdef KRB5_OLD_CRYPTO XXX SUNW14resync */

krb5_error_code krb5_crypto_us_timeofday
        (krb5_int32 *,
                krb5_int32 *);

#ifndef _KERNEL
/* Solaris kerberos: for convenience */
time_t krb5int_gmt_mktime (struct tm *);
#endif /* ! _KERNEL */

/* #endif KRB5_OLD_CRYPTO */

/* this helper fct is in libkrb5, but it makes sense declared here. */

krb5_error_code krb5_encrypt_helper
(krb5_context context, const krb5_keyblock *key,
                krb5_keyusage keyusage, const krb5_data *plain,
                krb5_enc_data *cipher);

/*
 * End "los-proto.h"
 */

/*
 * Begin "libos.h"
 */
#ifndef KRB5_LIBOS__
#define KRB5_LIBOS__

typedef struct _krb5_os_context {
        krb5_magic              magic;
        krb5_int32              time_offset;
        krb5_int32              usec_offset;
        krb5_int32              os_flags;
        char *                  default_ccname;
} *krb5_os_context;

/*
 * Flags for the os_flags field
 *
 * KRB5_OS_TOFFSET_VALID means that the time offset fields are valid.
 * The intention is that this facility to correct the system clocks so
 * that they reflect the "real" time, for systems where for some
 * reason we can't set the system clock.  Instead we calculate the
 * offset between the system time and real time, and store the offset
 * in the os context so that we can correct the system clock as necessary.
 *
 * KRB5_OS_TOFFSET_TIME means that the time offset fields should be
 * returned as the time by the krb5 time routines.  This should only
 * be used for testing purposes (obviously!)
 */
#define KRB5_OS_TOFFSET_VALID   1
#define KRB5_OS_TOFFSET_TIME    2

/* lock mode flags */
#define KRB5_LOCKMODE_SHARED    0x0001
#define KRB5_LOCKMODE_EXCLUSIVE 0x0002
#define KRB5_LOCKMODE_DONTBLOCK 0x0004
#define KRB5_LOCKMODE_UNLOCK    0x0008

#endif /* KRB5_LIBOS__ */
/*
 * End "libos.h"
 */

/*
 * Define our view of the size of a DES key.
 */
#define KRB5_MIT_DES_KEYSIZE            8
/*
 * Define a couple of SHA1 constants
 */
#define SHS_DATASIZE    64
#define SHS_DIGESTSIZE  20

/*
 * Check if des_int.h has been included before us.  If so, then check to see
 * that our view of the DES key size is the same as des_int.h's.
 */
#ifdef  MIT_DES_KEYSIZE
#if     MIT_DES_KEYSIZE != KRB5_MIT_DES_KEYSIZE
error(MIT_DES_KEYSIZE does not equal KRB5_MIT_DES_KEYSIZE)
#endif  /* MIT_DES_KEYSIZE != KRB5_MIT_DES_KEYSIZE */
#endif  /* MIT_DES_KEYSIZE */

#ifndef _KERNEL
/* Solaris Kerberos: only define PROVIDE_DES3_CBC_SHA if the following are
 * defined.
 */
#define PROVIDE_DES3_CBC_SHA 1
#define PROVIDE_NIST_SHA 1

#endif /* !_KERNEL */

/*
 * Begin "preauth.h"
 *
 * (Originally written by Glen Machin at Sandia Labs.)
 */
/*
 * Sandia National Laboratories also makes no representations about the
 * suitability of the modifications, or additions to this software for
 * any purpose.  It is provided "as is" without express or implied warranty.
 *
 */
#ifndef KRB5_PREAUTH__
#define KRB5_PREAUTH__

#include <preauth_plugin.h>

#define CLIENT_ROCK_MAGIC 0x4352434b
/* This structure is passed into the client preauth functions and passed
 * back to the "get_data_proc" function so that it can locate the
 * requested information.  It is opaque to the plugin code and can be
 * expanded in the future as new types of requests are defined which
 * may require other things to be passed through. */
typedef struct _krb5_preauth_client_rock {
        krb5_magic      magic;
        krb5_kdc_rep    *as_reply;
} krb5_preauth_client_rock;

/* This structure lets us keep track of all of the modules which are loaded,
 * turning the list of modules and their lists of implemented preauth types
 * into a single list which we can walk easily. */
typedef struct _krb5_preauth_context {
    int n_modules;
    struct _krb5_preauth_context_module {
        /* Which of the possibly more than one preauth types which the
         * module supports we're using at this point in the list. */
        krb5_preauthtype pa_type;
        /* Encryption types which the client claims to support -- we
         * copy them directly into the krb5_kdc_req structure during
         * krb5_preauth_prepare_request(). */
        krb5_enctype *enctypes;
        /* The plugin's per-plugin context and a function to clear it. */
        void *plugin_context;
        preauth_client_plugin_fini_proc client_fini;
        /* The module's table, and some of its members, copied here for
         * convenience when we populated the list. */
        struct krb5plugin_preauth_client_ftable_v1 *ftable;
        const char *name;
        int flags, use_count;
        preauth_client_process_proc client_process;
        preauth_client_tryagain_proc client_tryagain;
        preauth_client_supply_gic_opts_proc client_supply_gic_opts;
        preauth_client_request_init_proc client_req_init;
        preauth_client_request_fini_proc client_req_fini;
        /* The per-request context which the client_req_init() function
         * might allocate, which we'll need to clean up later by
         * calling the client_req_fini() function. */
        void *request_context;
        /* A pointer to the request_context pointer.  All modules within
         * a plugin will point at the request_context of the first
         * module within the plugin. */
        void **request_context_pp;
    } *modules;
} krb5_preauth_context;

typedef struct _krb5_pa_enc_ts {
    krb5_timestamp      patimestamp;
    krb5_int32          pausec;
} krb5_pa_enc_ts;

typedef struct _krb5_pa_for_user {
    krb5_principal      user;
    krb5_checksum       cksum;
    krb5_data           auth_package;
} krb5_pa_for_user;

enum {
  KRB5_FAST_ARMOR_AP_REQUEST = 0x1
};

typedef struct _krb5_fast_armor {
    krb5_int32 armor_type;
    krb5_data armor_value;
} krb5_fast_armor;
typedef struct _krb5_fast_armored_req {
    krb5_magic magic;
    krb5_fast_armor *armor;
    krb5_checksum req_checksum;
    krb5_enc_data enc_part;
} krb5_fast_armored_req;

typedef struct _krb5_fast_req {
    krb5_magic magic;
    krb5_flags fast_options;
    /* padata from req_body is used*/
   krb5_kdc_req *req_body;
} krb5_fast_req;


/* Bits 0-15 are critical in fast options.*/
#define UNSUPPORTED_CRITICAL_FAST_OPTIONS 0x00ff
#define KRB5_FAST_OPTION_HIDE_CLIENT_NAMES 0x01

typedef struct _krb5_fast_finished {
    krb5_timestamp timestamp;
    krb5_int32 usec;
    krb5_principal client;
    krb5_checksum ticket_checksum;
} krb5_fast_finished;

typedef struct _krb5_fast_response {
    krb5_magic magic;
    krb5_pa_data **padata;
    krb5_keyblock *strengthen_key;
    krb5_fast_finished *finished;
    krb5_int32 nonce;
} krb5_fast_response;

typedef krb5_error_code (*krb5_preauth_obtain_proc)
    (krb5_context,
                    krb5_pa_data *,
                    krb5_etype_info,
                    krb5_keyblock *,
                    krb5_error_code ( * )(krb5_context,
                                          const krb5_enctype,
                                          krb5_data *,
                                          krb5_const_pointer,
                                          krb5_keyblock **),
                    krb5_const_pointer,
                    krb5_creds *,
                    krb5_kdc_req *,
                    krb5_pa_data **);

typedef krb5_error_code (*krb5_preauth_process_proc)
    (krb5_context,
                    krb5_pa_data *,
                    krb5_kdc_req *,
                    krb5_kdc_rep *,
                    krb5_error_code ( * )(krb5_context,
                                          const krb5_enctype,
                                          krb5_data *,
                                          krb5_const_pointer,
                                          krb5_keyblock **),
                    krb5_const_pointer,
                    krb5_error_code ( * )(krb5_context,
                                          const krb5_keyblock *,
                                          krb5_const_pointer,
                                          krb5_kdc_rep * ),
                    krb5_keyblock **,
                    krb5_creds *,
                    krb5_int32 *,
                    krb5_int32 *);

typedef struct _krb5_preauth_ops {
    krb5_magic magic;
    int     type;
    int flags;
    krb5_preauth_obtain_proc    obtain;
    krb5_preauth_process_proc   process;
} krb5_preauth_ops;


krb5_error_code krb5_obtain_padata
        (krb5_context,
                krb5_pa_data **,
                krb5_error_code ( * )(krb5_context,
                                                      const krb5_enctype,
                                                      krb5_data *,
                                                      krb5_const_pointer,
                                                      krb5_keyblock **),
                krb5_const_pointer,
                krb5_creds *,
                krb5_kdc_req *);

krb5_error_code krb5_process_padata
        (krb5_context,
                krb5_kdc_req *,
                krb5_kdc_rep *,
                krb5_error_code ( * )(krb5_context,
                                                      const krb5_enctype,
                                                      krb5_data *,
                                                      krb5_const_pointer,
                                                      krb5_keyblock **),
                krb5_const_pointer,
                krb5_error_code ( * )(krb5_context,
                                                      const krb5_keyblock *,
                                                      krb5_const_pointer,
                                                      krb5_kdc_rep * ),
                krb5_keyblock **,
                krb5_creds *,
                krb5_int32 *);

void krb5_free_etype_info (krb5_context, krb5_etype_info);

/*
 * Preauthentication property flags
 */
#define KRB5_PREAUTH_FLAGS_ENCRYPT      0x00000001
#define KRB5_PREAUTH_FLAGS_HARDWARE     0x00000002

#endif /* KRB5_PREAUTH__ */
/*
 * End "preauth.h"
 */

/*
 * Extending the krb5_get_init_creds_opt structure.  The original
 * krb5_get_init_creds_opt structure is defined publicly.  The
 * new extended version is private.  The original interface
 * assumed a pre-allocated structure which was passed to
 * krb5_get_init_creds_init().  The new interface assumes that
 * the caller will call krb5_get_init_creds_alloc() and
 * krb5_get_init_creds_free().
 *
 * Callers MUST NOT call krb5_get_init_creds_init() after allocating an
 * opts structure using krb5_get_init_creds_alloc().  To do so will
 * introduce memory leaks.  Unfortunately, there is no way to enforce
 * this behavior.
 *
 * Two private flags are added for backward compatibility.
 * KRB5_GET_INIT_CREDS_OPT_EXTENDED says that the structure was allocated
 * with the new krb5_get_init_creds_opt_alloc() function.
 * KRB5_GET_INIT_CREDS_OPT_SHADOWED is set to indicate that the extended
 * structure is a shadow copy of an original krb5_get_init_creds_opt
 * structure.
 * If KRB5_GET_INIT_CREDS_OPT_SHADOWED is set after a call to
 * krb5int_gic_opt_to_opte(), the resulting extended structure should be
 * freed (using krb5_get_init_creds_free).  Otherwise, the original
 * structure was already extended and there is no need to free it.
 */

#define KRB5_GET_INIT_CREDS_OPT_EXTENDED 0x80000000
#define KRB5_GET_INIT_CREDS_OPT_SHADOWED 0x40000000

#define krb5_gic_opt_is_extended(s) \
    ((s) && ((s)->flags & KRB5_GET_INIT_CREDS_OPT_EXTENDED) ? 1 : 0)
#define krb5_gic_opt_is_shadowed(s) \
    ((s) && ((s)->flags & KRB5_GET_INIT_CREDS_OPT_SHADOWED) ? 1 : 0)


typedef struct _krb5_gic_opt_private {
    int num_preauth_data;
    krb5_gic_opt_pa_data *preauth_data;
} krb5_gic_opt_private;

typedef struct _krb5_gic_opt_ext {
    krb5_flags flags;
    krb5_deltat tkt_life;
    krb5_deltat renew_life;
    int forwardable;
    int proxiable;
    krb5_enctype *etype_list;
    int etype_list_length;
    krb5_address **address_list;
    krb5_preauthtype *preauth_list;
    int preauth_list_length;
    krb5_data *salt;
    /*
     * Do not change anything above this point in this structure.
     * It is identical to the public krb5_get_init_creds_opt structure.
     * New members must be added below.
     */
    krb5_gic_opt_private *opt_private;
} krb5_gic_opt_ext;

krb5_error_code
krb5int_gic_opt_to_opte(krb5_context context,
                        krb5_get_init_creds_opt *opt,
                        krb5_gic_opt_ext **opte,
                        unsigned int force,
                        const char *where);

krb5_error_code
krb5int_copy_data_contents (krb5_context, const krb5_data *, krb5_data *);
krb5_error_code
krb5int_copy_data_contents_add0 (krb5_context, const krb5_data *, krb5_data *);

#ifndef _KERNEL /* needed for lib/krb5/krb/ */
typedef krb5_error_code (*krb5_gic_get_as_key_fct)
    (krb5_context,
                     krb5_principal,
                     krb5_enctype,
                     krb5_prompter_fct,
                     void *prompter_data,
                     krb5_data *salt,
     krb5_data *s2kparams,
                     krb5_keyblock *as_key,
                     void *gak_data);

krb5_error_code KRB5_CALLCONV
krb5_get_init_creds
(krb5_context context,
                krb5_creds *creds,
                krb5_principal client,
                krb5_prompter_fct prompter,
                void *prompter_data,
                krb5_deltat start_time,
                char *in_tkt_service,
                krb5_gic_opt_ext *gic_options,
                krb5_gic_get_as_key_fct gak,
                void *gak_data,
                int *master,
                krb5_kdc_rep **as_reply);

krb5_error_code krb5int_populate_gic_opt (
    krb5_context, krb5_gic_opt_ext **,
    krb5_flags options, krb5_address * const *addrs, krb5_enctype *ktypes,
    krb5_preauthtype *pre_auth_types, krb5_creds *creds);


krb5_error_code KRB5_CALLCONV krb5_do_preauth
        (krb5_context context,
         krb5_kdc_req *request,
         krb5_data *encoded_request_body,
         krb5_data *encoded_previous_request,
         krb5_pa_data **in_padata, krb5_pa_data ***out_padata,
         krb5_data *salt, krb5_data *s2kparams,
         krb5_enctype *etype, krb5_keyblock *as_key,
         krb5_prompter_fct prompter, void *prompter_data,
         krb5_gic_get_as_key_fct gak_fct, void *gak_data,
         krb5_preauth_client_rock *get_data_rock,
         krb5_gic_opt_ext *opte);
krb5_error_code KRB5_CALLCONV krb5_do_preauth_tryagain
        (krb5_context context,
         krb5_kdc_req *request,
         krb5_data *encoded_request_body,
         krb5_data *encoded_previous_request,
         krb5_pa_data **in_padata, krb5_pa_data ***out_padata,
         krb5_error *err_reply,
         krb5_data *salt, krb5_data *s2kparams,
         krb5_enctype *etype, krb5_keyblock *as_key,
         krb5_prompter_fct prompter, void *prompter_data,
         krb5_gic_get_as_key_fct gak_fct, void *gak_data,
         krb5_preauth_client_rock *get_data_rock,
         krb5_gic_opt_ext *opte);
void KRB5_CALLCONV krb5_init_preauth_context
        (krb5_context);
void KRB5_CALLCONV krb5_free_preauth_context
        (krb5_context);
void KRB5_CALLCONV krb5_clear_preauth_context_use_counts
        (krb5_context);
void KRB5_CALLCONV krb5_preauth_prepare_request
        (krb5_context, krb5_gic_opt_ext *, krb5_kdc_req *);
void KRB5_CALLCONV krb5_preauth_request_context_init
        (krb5_context);
void KRB5_CALLCONV krb5_preauth_request_context_fini
        (krb5_context);

#endif /* _KERNEL */
void KRB5_CALLCONV krb5_free_sam_challenge
        (krb5_context, krb5_sam_challenge * );
void KRB5_CALLCONV krb5_free_sam_challenge_2
        (krb5_context, krb5_sam_challenge_2 * );
void KRB5_CALLCONV krb5_free_sam_challenge_2_body
        (krb5_context, krb5_sam_challenge_2_body *);
void KRB5_CALLCONV krb5_free_sam_response
        (krb5_context, krb5_sam_response * );
void KRB5_CALLCONV krb5_free_sam_response_2
        (krb5_context, krb5_sam_response_2 * );
void KRB5_CALLCONV krb5_free_predicted_sam_response
        (krb5_context, krb5_predicted_sam_response * );
void KRB5_CALLCONV krb5_free_enc_sam_response_enc
        (krb5_context, krb5_enc_sam_response_enc * );
void KRB5_CALLCONV krb5_free_enc_sam_response_enc_2
        (krb5_context, krb5_enc_sam_response_enc_2 * );
void KRB5_CALLCONV krb5_free_sam_challenge_contents
        (krb5_context, krb5_sam_challenge * );
void KRB5_CALLCONV krb5_free_sam_challenge_2_contents
        (krb5_context, krb5_sam_challenge_2 * );
void KRB5_CALLCONV krb5_free_sam_challenge_2_body_contents
        (krb5_context, krb5_sam_challenge_2_body * );
void KRB5_CALLCONV krb5_free_sam_response_contents
        (krb5_context, krb5_sam_response * );
void KRB5_CALLCONV krb5_free_sam_response_2_contents
        (krb5_context, krb5_sam_response_2 *);
void KRB5_CALLCONV krb5_free_predicted_sam_response_contents
        (krb5_context, krb5_predicted_sam_response * );
void KRB5_CALLCONV krb5_free_enc_sam_response_enc_contents
        (krb5_context, krb5_enc_sam_response_enc * );
void KRB5_CALLCONV krb5_free_enc_sam_response_enc_2_contents
        (krb5_context, krb5_enc_sam_response_enc_2 * );

void KRB5_CALLCONV krb5_free_pa_enc_ts
        (krb5_context, krb5_pa_enc_ts *);

/* #include "krb5/wordsize.h" -- comes in through base-defs.h. */
#ifndef _KERNEL
#include "com_err.h"
#include <krb5/k5-plugin.h>
#endif /* _KERNEL */

/*
 * Solaris Kerberos: moved from sendto_kdc.c so other code can reference
 */
#define DEFAULT_UDP_PREF_LIMIT   1465

#ifndef _KERNEL
#include "profile.h"
#include <strings.h>
#endif /* _KERNEL */

#define KEY_CHANGED(k1, k2) \
(k1 == NULL || \
 k1 != k2 || \
 k1->enctype != k2->enctype || \
 k1->length != k2->length || \
 bcmp(k1->contents, k2->contents, k1->length))

#ifndef _KERNEL
typedef struct _arcfour_ctx {
        CK_SESSION_HANDLE eSession; /* encrypt session handle */
        CK_SESSION_HANDLE dSession; /* decrypt session handle */
        CK_OBJECT_HANDLE  eKey; /* encrypt key object */
        CK_OBJECT_HANDLE  dKey; /* decrype key object */
        uchar_t           initialized;
}arcfour_ctx_rec;

#endif /* !_KERNEL */

struct _krb5_context {
        krb5_magic      magic;
        krb5_enctype    *in_tkt_ktypes;
        unsigned int    in_tkt_ktype_count;
        krb5_enctype    *tgs_ktypes;
        unsigned int    tgs_ktype_count;
        /* This used to be a void*, but since we always allocate them
           together (though in different source files), and the types
           are declared in the same header, might as well just combine
           them.

           The array[1] is so the existing code treating the field as
           a pointer will still work.  For cleanliness, it should
           eventually get changed to a single element instead of an
           array.  */
        struct _krb5_os_context os_context[1];
        char            *default_realm;
        int             ser_ctx_count;
        krb5_boolean    profile_secure;
        void            *ser_ctx;
#ifndef _KERNEL
        profile_t       profile;
        void            *db_context;
        void            *kdblog_context;
        /* allowable clock skew */
        krb5_deltat     clockskew;
        krb5_cksumtype  kdc_req_sumtype;
        krb5_cksumtype  default_ap_req_sumtype;
        krb5_cksumtype  default_safe_sumtype;
        krb5_flags      kdc_default_options;
        krb5_flags      library_options;
        int             fcc_default_format;
        int             scc_default_format;
        krb5_prompt_type *prompt_types;
        /* Message size above which we'll try TCP first in send-to-kdc
           type code.  Aside from the 2**16 size limit, we put no
           absolute limit on the UDP packet size.  */
        int             udp_pref_limit;

        /* This is the tgs_ktypes list as read from the profile, or
           set to compiled-in defaults.  The application code cannot
           override it.  This is used for session keys for
           intermediate ticket-granting tickets used to acquire the
           requested ticket (the session key of which may be
           constrained by tgs_ktypes above).  */
        krb5_enctype    *conf_tgs_ktypes;
        int             conf_tgs_ktypes_count;

        /* Use the _configured version?  */
        krb5_boolean    use_conf_ktypes;

#ifdef KRB5_DNS_LOOKUP
        krb5_boolean    profile_in_memory;
#endif /* KRB5_DNS_LOOKUP */

    /* locate_kdc module stuff */
    struct plugin_dir_handle libkrb5_plugins;
    struct krb5plugin_service_locate_ftable *vtbl;
    void (**locate_fptrs)(void);

        pid_t pid;  /* fork safety: PID of process that did last PKCS11 init */

        /* Solaris Kerberos: handles for PKCS#11 crypto */
        /*
         * Warning, do not access hSession directly as this is not fork() safe.
         * Instead use the krb_ctx_hSession() macro below.
         */
        CK_SESSION_HANDLE hSession;
        int             cryptoki_initialized;

        /* arcfour_ctx: used only for rcmd stuff so no fork safety issues apply */
        arcfour_ctx_rec arcfour_ctx;

        /* preauth module stuff */
        struct plugin_dir_handle preauth_plugins;
        krb5_preauth_context *preauth_context;

        /* error detail info */
        struct errinfo err;
#else /* ! KERNEL */
        crypto_mech_type_t kef_cipher_mt;
        crypto_mech_type_t kef_hash_mt;
        crypto_mech_type_t kef_cksum_mt;
#endif /* ! KERNEL */
};

#ifndef  _KERNEL
extern pid_t __krb5_current_pid;

CK_SESSION_HANDLE krb5_reinit_ef_handle(krb5_context);

/*
 * fork safety: barring the ef_init code, every other function must use the
 * krb_ctx_hSession() macro to access the hSession field in a krb context.
 * Note, if the pid of the krb ctx == the current global pid then it is safe to
 * use the ctx hSession otherwise it needs to be re-inited before it is returned
 * to the caller.
 */
#define krb_ctx_hSession(ctx) \
    ((ctx)->pid == __krb5_current_pid) ? (ctx)->hSession : krb5_reinit_ef_handle((ctx))
#endif

#define MD5_CKSUM_LENGTH 16
#define RSA_MD5_CKSUM_LENGTH 16
#define MD5_BLOCKSIZE 64


/*
 * Solaris Kerberos:
 * This next section of prototypes and constants
 * are all unique to the Solaris Kerberos implementation.
 * Because Solaris uses the native encryption framework
 * to provide crypto support, the following routines
 * are needed to support this system.
 */

/*
 * Begin Solaris Crypto Prototypes
 */

/*
 * define constants that are used for creating the constant
 * which is used to make derived keys.
 */
#define DK_ENCR_KEY_BYTE 0xAA
#define DK_HASH_KEY_BYTE 0x55
#define DK_CKSUM_KEY_BYTE 0x99

int init_derived_keydata(krb5_context, const struct krb5_enc_provider *,
                        krb5_keyblock *, krb5_keyusage,
                        krb5_keyblock **, krb5_keyblock **);

krb5_error_code add_derived_key(krb5_keyblock *, krb5_keyusage, uchar_t,
                                krb5_keyblock *);

krb5_keyblock *find_derived_key(krb5_keyusage, uchar_t, krb5_keyblock *);
krb5_keyblock *krb5_create_derived_keyblock(int);

#ifdef _KERNEL
int k5_ef_hash(krb5_context, int, const krb5_data *, krb5_data *);

int k5_ef_mac(krb5_context, krb5_keyblock *, krb5_data *,
        const krb5_data *, krb5_data *);

void make_kef_key(krb5_keyblock *);
int init_key_kef(crypto_mech_type_t, krb5_keyblock *);
int update_key_template(krb5_keyblock *);
void setup_kef_keytypes();
void setup_kef_cksumtypes();
crypto_mech_type_t get_cipher_mech_type(krb5_context, krb5_keyblock *);
crypto_mech_type_t get_hash_mech_type(krb5_context, krb5_keyblock *);

#else
/*
 * This structure is used to map Kerberos supported OID's,
 * to PKCS11 mechanisms
 */
#define USE_ENCR        0x01
#define USE_HASH        0x02

typedef struct krb5_mech_2_pkcs {
        uchar_t         flags;
        CK_MECHANISM_TYPE enc_algo;
        CK_MECHANISM_TYPE hash_algo;
        CK_MECHANISM_TYPE str2key_algo;
} KRB5_MECH_TO_PKCS;

#define ENC_DEFINED(x)  (((x).flags & USE_ENCR))
#define HASH_DEFINED(x) (((x).flags & USE_HASH))

extern CK_RV get_algo(krb5_enctype etype, KRB5_MECH_TO_PKCS * algos);
extern CK_RV get_key_type (krb5_enctype etype, CK_KEY_TYPE * keyType);
extern krb5_error_code slot_supports_krb5 (CK_SLOT_ID_PTR slotid);

krb5_error_code init_key_uef(CK_SESSION_HANDLE, krb5_keyblock *);

krb5_error_code k5_ef_hash(krb5_context, CK_MECHANISM *,
        unsigned int, const krb5_data *, krb5_data *);

krb5_error_code k5_ef_mac(krb5_context context,
        krb5_keyblock *key, krb5_data *ivec,
        krb5_const krb5_data *input, krb5_data *output);

#endif  /* !_KERNEL */

krb5_error_code
derive_3des_keys(krb5_context, struct krb5_enc_provider *,
                krb5_keyblock *, krb5_keyusage,
                krb5_keyblock *, krb5_keyblock *);

/*
 * End Solaris Crypto Prototypes
 */

#define KRB5_LIBOPT_SYNC_KDCTIME        0x0001

/* internal message representations */

typedef struct _krb5_safe {
    krb5_magic magic;
    krb5_data user_data;                /* user data */
    krb5_timestamp timestamp;           /* client time, optional */
    krb5_int32 usec;                    /* microsecond portion of time,
                                           optional */
    krb5_ui_4 seq_number;               /* sequence #, optional */
    krb5_address *s_address;    /* sender address */
    krb5_address *r_address;    /* recipient address, optional */
    krb5_checksum *checksum;    /* data integrity checksum */
} krb5_safe;

typedef struct _krb5_priv {
    krb5_magic magic;
    krb5_enc_data enc_part;             /* encrypted part */
} krb5_priv;

typedef struct _krb5_priv_enc_part {
    krb5_magic magic;
    krb5_data user_data;                /* user data */
    krb5_timestamp timestamp;           /* client time, optional */
    krb5_int32 usec;                    /* microsecond portion of time, opt. */
    krb5_ui_4 seq_number;               /* sequence #, optional */
    krb5_address *s_address;    /* sender address */
    krb5_address *r_address;    /* recipient address, optional */
} krb5_priv_enc_part;

void KRB5_CALLCONV krb5_free_safe
        (krb5_context, krb5_safe * );
void KRB5_CALLCONV krb5_free_priv
        (krb5_context, krb5_priv * );
void KRB5_CALLCONV krb5_free_priv_enc_part
        (krb5_context, krb5_priv_enc_part * );

/*
 * Begin "asn1.h"
 */
#ifndef KRB5_ASN1__
#define KRB5_ASN1__

/* ASN.1 encoding knowledge; KEEP IN SYNC WITH ASN.1 defs! */
/* here we use some knowledge of ASN.1 encodings */
/*
  Ticket is APPLICATION 1.
  Authenticator is APPLICATION 2.
  AS_REQ is APPLICATION 10.
  AS_REP is APPLICATION 11.
  TGS_REQ is APPLICATION 12.
  TGS_REP is APPLICATION 13.
  AP_REQ is APPLICATION 14.
  AP_REP is APPLICATION 15.
  KRB_SAFE is APPLICATION 20.
  KRB_PRIV is APPLICATION 21.
  KRB_CRED is APPLICATION 22.
  EncASRepPart is APPLICATION 25.
  EncTGSRepPart is APPLICATION 26.
  EncAPRepPart is APPLICATION 27.
  EncKrbPrivPart is APPLICATION 28.
  EncKrbCredPart is APPLICATION 29.
  KRB_ERROR is APPLICATION 30.
 */
/* allow either constructed or primitive encoding, so check for bit 6
   set or reset */
#define krb5_is_krb_ticket(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x61 ||\
                                    (dat)->data[0] == 0x41))
#define krb5_is_krb_authenticator(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x62 ||\
                                    (dat)->data[0] == 0x42))
#define krb5_is_as_req(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x6a ||\
                                    (dat)->data[0] == 0x4a))
#define krb5_is_as_rep(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x6b ||\
                                    (dat)->data[0] == 0x4b))
#define krb5_is_tgs_req(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x6c ||\
                                    (dat)->data[0] == 0x4c))
#define krb5_is_tgs_rep(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x6d ||\
                                    (dat)->data[0] == 0x4d))
#define krb5_is_ap_req(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x6e ||\
                                    (dat)->data[0] == 0x4e))
#define krb5_is_ap_rep(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x6f ||\
                                    (dat)->data[0] == 0x4f))
#define krb5_is_krb_safe(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x74 ||\
                                    (dat)->data[0] == 0x54))
#define krb5_is_krb_priv(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x75 ||\
                                    (dat)->data[0] == 0x55))
#define krb5_is_krb_cred(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x76 ||\
                                    (dat)->data[0] == 0x56))
#define krb5_is_krb_enc_as_rep_part(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x79 ||\
                                    (dat)->data[0] == 0x59))
#define krb5_is_krb_enc_tgs_rep_part(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x7a ||\
                                    (dat)->data[0] == 0x5a))
#define krb5_is_krb_enc_ap_rep_part(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x7b ||\
                                    (dat)->data[0] == 0x5b))
#define krb5_is_krb_enc_krb_priv_part(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x7c ||\
                                    (dat)->data[0] == 0x5c))
#define krb5_is_krb_enc_krb_cred_part(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x7d ||\
                                    (dat)->data[0] == 0x5d))
#define krb5_is_krb_error(dat)\
        ((dat) && (dat)->length && ((dat)->data[0] == 0x7e ||\
                                    (dat)->data[0] == 0x5e))

/*************************************************************************
 * Prototypes for krb5_encode.c
 *************************************************************************/

/*
   krb5_error_code encode_krb5_structure(const krb5_structure *rep,
                                         krb5_data **code);
   modifies  *code
   effects   Returns the ASN.1 encoding of *rep in **code.
             Returns ASN1_MISSING_FIELD if a required field is emtpy in *rep.
             Returns ENOMEM if memory runs out.
*/

krb5_error_code encode_krb5_authenticator
        (const krb5_authenticator *rep, krb5_data **code);

krb5_error_code encode_krb5_ticket
        (const krb5_ticket *rep, krb5_data **code);

krb5_error_code encode_krb5_encryption_key
        (const krb5_keyblock *rep, krb5_data **code);

krb5_error_code encode_krb5_enc_tkt_part
        (const krb5_enc_tkt_part *rep, krb5_data **code);

krb5_error_code encode_krb5_enc_kdc_rep_part
        (const krb5_enc_kdc_rep_part *rep, krb5_data **code);

/* yes, the translation is identical to that used for KDC__REP */
krb5_error_code encode_krb5_as_rep
        (const krb5_kdc_rep *rep, krb5_data **code);

/* yes, the translation is identical to that used for KDC__REP */
krb5_error_code encode_krb5_tgs_rep
        (const krb5_kdc_rep *rep, krb5_data **code);

krb5_error_code encode_krb5_ap_req
        (const krb5_ap_req *rep, krb5_data **code);

krb5_error_code encode_krb5_ap_rep
        (const krb5_ap_rep *rep, krb5_data **code);

krb5_error_code encode_krb5_ap_rep_enc_part
        (const krb5_ap_rep_enc_part *rep, krb5_data **code);

krb5_error_code encode_krb5_as_req
        (const krb5_kdc_req *rep, krb5_data **code);

krb5_error_code encode_krb5_tgs_req
        (const krb5_kdc_req *rep, krb5_data **code);

krb5_error_code encode_krb5_kdc_req_body
        (const krb5_kdc_req *rep, krb5_data **code);

krb5_error_code encode_krb5_safe
        (const krb5_safe *rep, krb5_data **code);

struct krb5_safe_with_body {
        krb5_safe *safe;
        krb5_data *body;
};

krb5_error_code encode_krb5_safe_with_body
        (const struct krb5_safe_with_body *rep, krb5_data **code);

krb5_error_code encode_krb5_priv
        (const krb5_priv *rep, krb5_data **code);

krb5_error_code encode_krb5_enc_priv_part
        (const krb5_priv_enc_part *rep, krb5_data **code);

krb5_error_code encode_krb5_cred
        (const krb5_cred *rep, krb5_data **code);

krb5_error_code encode_krb5_enc_cred_part
        (const krb5_cred_enc_part *rep, krb5_data **code);

krb5_error_code encode_krb5_error
        (const krb5_error *rep, krb5_data **code);

krb5_error_code encode_krb5_authdata
        (krb5_authdata *const *rep, krb5_data **code);

krb5_error_code encode_krb5_authdata_elt
        (const krb5_authdata *rep, krb5_data **code);

krb5_error_code encode_krb5_pwd_sequence
        (const passwd_phrase_element *rep, krb5_data **code);

krb5_error_code encode_krb5_pwd_data
        (const krb5_pwd_data *rep, krb5_data **code);

krb5_error_code encode_krb5_padata_sequence
        (krb5_pa_data *const *rep, krb5_data **code);

krb5_error_code encode_krb5_alt_method
        (const krb5_alt_method *, krb5_data **code);

krb5_error_code encode_krb5_etype_info
        (krb5_etype_info_entry *const *, krb5_data **code);
krb5_error_code encode_krb5_etype_info2
        (krb5_etype_info_entry *const *, krb5_data **code);

krb5_error_code encode_krb5_enc_data
        (const krb5_enc_data *, krb5_data **);

krb5_error_code encode_krb5_pa_enc_ts
        (const krb5_pa_enc_ts *, krb5_data **);

krb5_error_code encode_krb5_sam_challenge
        (const krb5_sam_challenge * , krb5_data **);

krb5_error_code encode_krb5_sam_key
        (const krb5_sam_key * , krb5_data **);

krb5_error_code encode_krb5_enc_sam_response_enc
        (const krb5_enc_sam_response_enc * , krb5_data **);

krb5_error_code encode_krb5_sam_response
        (const krb5_sam_response * , krb5_data **);

krb5_error_code encode_krb5_sam_challenge_2
        (const krb5_sam_challenge_2 * , krb5_data **);

krb5_error_code encode_krb5_sam_challenge_2_body
        (const krb5_sam_challenge_2_body * , krb5_data **);

krb5_error_code encode_krb5_enc_sam_response_enc_2
        (const krb5_enc_sam_response_enc_2 * , krb5_data **);

krb5_error_code encode_krb5_sam_response_2
        (const krb5_sam_response_2 * , krb5_data **);

krb5_error_code encode_krb5_predicted_sam_response
        (const krb5_predicted_sam_response * , krb5_data **);

struct krb5_setpw_req {
    krb5_principal target;
    krb5_data password;
};
krb5_error_code encode_krb5_setpw_req
        (const struct krb5_setpw_req *rep, krb5_data **code);

/*************************************************************************
 * End of prototypes for krb5_encode.c
 *************************************************************************/

krb5_error_code decode_krb5_sam_challenge
       (const krb5_data *, krb5_sam_challenge **);

krb5_error_code decode_krb5_enc_sam_key
       (const krb5_data *, krb5_sam_key **);

krb5_error_code decode_krb5_enc_sam_response_enc
       (const krb5_data *, krb5_enc_sam_response_enc **);

krb5_error_code decode_krb5_sam_response
       (const krb5_data *, krb5_sam_response **);

krb5_error_code decode_krb5_predicted_sam_response
       (const krb5_data *, krb5_predicted_sam_response **);

krb5_error_code decode_krb5_sam_challenge_2
        (const krb5_data *, krb5_sam_challenge_2 **);

krb5_error_code decode_krb5_sam_challenge_2_body
        (const krb5_data *, krb5_sam_challenge_2_body **);

krb5_error_code decode_krb5_enc_sam_response_enc_2
        (const krb5_data *, krb5_enc_sam_response_enc_2 **);

krb5_error_code decode_krb5_sam_response_2
        (const krb5_data *, krb5_sam_response_2 **);


/*************************************************************************
 * Prototypes for krb5_decode.c
 *************************************************************************/

krb5_error_code krb5_validate_times
       (krb5_context,
                       krb5_ticket_times *);

/*
   krb5_error_code decode_krb5_structure(const krb5_data *code,
                                         krb5_structure **rep);

   requires  Expects **rep to not have been allocated;
              a new *rep is allocated regardless of the old value.
   effects   Decodes *code into **rep.
             Returns ENOMEM if memory is exhausted.
             Returns asn1 and krb5 errors.
*/

krb5_error_code decode_krb5_authenticator
        (const krb5_data *code, krb5_authenticator **rep);

krb5_error_code decode_krb5_ticket
        (const krb5_data *code, krb5_ticket **rep);

krb5_error_code decode_krb5_encryption_key
        (const krb5_data *output, krb5_keyblock **rep);

krb5_error_code decode_krb5_enc_tkt_part
        (const krb5_data *output, krb5_enc_tkt_part **rep);

krb5_error_code decode_krb5_enc_kdc_rep_part
        (const krb5_data *output, krb5_enc_kdc_rep_part **rep);

krb5_error_code decode_krb5_as_rep
        (const krb5_data *output, krb5_kdc_rep **rep);

krb5_error_code decode_krb5_tgs_rep
        (const krb5_data *output, krb5_kdc_rep **rep);

krb5_error_code decode_krb5_ap_req
        (const krb5_data *output, krb5_ap_req **rep);

krb5_error_code decode_krb5_ap_rep
        (const krb5_data *output, krb5_ap_rep **rep);

krb5_error_code decode_krb5_ap_rep_enc_part
        (const krb5_data *output, krb5_ap_rep_enc_part **rep);

krb5_error_code decode_krb5_as_req
        (const krb5_data *output, krb5_kdc_req **rep);

krb5_error_code decode_krb5_tgs_req
        (const krb5_data *output, krb5_kdc_req **rep);

krb5_error_code decode_krb5_kdc_req_body
        (const krb5_data *output, krb5_kdc_req **rep);

krb5_error_code decode_krb5_safe
        (const krb5_data *output, krb5_safe **rep);

krb5_error_code decode_krb5_safe_with_body
        (const krb5_data *output, krb5_safe **rep, krb5_data *body);

krb5_error_code decode_krb5_priv
        (const krb5_data *output, krb5_priv **rep);

krb5_error_code decode_krb5_enc_priv_part
        (const krb5_data *output, krb5_priv_enc_part **rep);

krb5_error_code decode_krb5_cred
        (const krb5_data *output, krb5_cred **rep);

krb5_error_code decode_krb5_enc_cred_part
        (const krb5_data *output, krb5_cred_enc_part **rep);

krb5_error_code decode_krb5_error
        (const krb5_data *output, krb5_error **rep);

krb5_error_code decode_krb5_authdata
        (const krb5_data *output, krb5_authdata ***rep);

krb5_error_code decode_krb5_pwd_sequence
        (const krb5_data *output, passwd_phrase_element **rep);

krb5_error_code decode_krb5_pwd_data
        (const krb5_data *output, krb5_pwd_data **rep);

krb5_error_code decode_krb5_padata_sequence
        (const krb5_data *output, krb5_pa_data ***rep);

krb5_error_code decode_krb5_alt_method
        (const krb5_data *output, krb5_alt_method **rep);

krb5_error_code decode_krb5_etype_info
        (const krb5_data *output, krb5_etype_info_entry ***rep);

krb5_error_code decode_krb5_etype_info2
        (const krb5_data *output, krb5_etype_info_entry ***rep);

krb5_error_code decode_krb5_enc_data
        (const krb5_data *output, krb5_enc_data **rep);

krb5_error_code decode_krb5_pa_enc_ts
        (const krb5_data *output, krb5_pa_enc_ts **rep);

krb5_error_code decode_krb5_sam_key
        (const krb5_data *, krb5_sam_key **);

struct _krb5_key_data;          /* kdb.h */
krb5_error_code
krb5int_ldap_encode_sequence_of_keys (struct _krb5_key_data *key_data,
                                      krb5_int16 n_key_data,
                                      krb5_int32 mkvno,
                                      krb5_data **code);

krb5_error_code
krb5int_ldap_decode_sequence_of_keys (krb5_data *in,
                                      struct _krb5_key_data **out,
                                      krb5_int16 *n_key_data,
                                      int *mkvno);

/*************************************************************************
 * End of prototypes for krb5_decode.c
 *************************************************************************/

#endif /* KRB5_ASN1__ */
/*
 * End "asn1.h"
 */


/*
 * Internal krb5 library routines
 */
krb5_error_code krb5_encrypt_tkt_part
        (krb5_context,
                const krb5_keyblock *,
                krb5_ticket * );


krb5_error_code krb5_encode_kdc_rep
        (krb5_context,
                const krb5_msgtype,
                const krb5_enc_kdc_rep_part *,
                int using_subkey,
                const krb5_keyblock *,
                krb5_kdc_rep *,
                krb5_data ** );

krb5_boolean krb5int_auth_con_chkseqnum
        (krb5_context ctx, krb5_auth_context ac, krb5_ui_4 in_seq);
/*
 * [De]Serialization Handle and operations.
 */
struct __krb5_serializer {
    krb5_magic          odtype;
    krb5_error_code     (*sizer) (krb5_context,
                                                  krb5_pointer,
                                                  size_t *);
    krb5_error_code     (*externalizer) (krb5_context,
                                                         krb5_pointer,
                                                         krb5_octet **,
                                                         size_t *);
    krb5_error_code     (*internalizer) (krb5_context,
                                                         krb5_pointer *,
                                                         krb5_octet **,
                                                         size_t *);
};
typedef const struct __krb5_serializer * krb5_ser_handle;
typedef struct __krb5_serializer krb5_ser_entry;

krb5_ser_handle krb5_find_serializer
        (krb5_context,
                krb5_magic);
krb5_error_code krb5_register_serializer
        (krb5_context,
                        const krb5_ser_entry *);

/* Determine the external size of a particular opaque structure */
krb5_error_code KRB5_CALLCONV krb5_size_opaque
        (krb5_context,
                krb5_magic,
                krb5_pointer,
                size_t *);

/* Serialize the structure into a buffer */
krb5_error_code KRB5_CALLCONV krb5_externalize_opaque
        (krb5_context,
                krb5_magic,
                krb5_pointer,
                krb5_octet **,
                size_t *);

/* Deserialize the structure from a buffer */
krb5_error_code KRB5_CALLCONV krb5_internalize_opaque
        (krb5_context,
                krb5_magic,
                krb5_pointer *,
                krb5_octet **,
                size_t *);

/* Serialize data into a buffer */
krb5_error_code krb5_externalize_data
        (krb5_context,
                krb5_pointer,
                krb5_octet **,
                size_t *);
/*
 * Initialization routines.
 */

/* Initialize serialization for krb5_[os_]context */
krb5_error_code KRB5_CALLCONV krb5_ser_context_init
        (krb5_context);

/* Initialize serialization for krb5_auth_context */
krb5_error_code KRB5_CALLCONV krb5_ser_auth_context_init
        (krb5_context);

/* Initialize serialization for krb5_keytab */
krb5_error_code KRB5_CALLCONV krb5_ser_keytab_init
        (krb5_context);

/* Initialize serialization for krb5_ccache */
krb5_error_code KRB5_CALLCONV krb5_ser_ccache_init
        (krb5_context);

/* Initialize serialization for krb5_rcache */
krb5_error_code KRB5_CALLCONV krb5_ser_rcache_init
        (krb5_context);

/* [De]serialize 4-byte integer */
krb5_error_code KRB5_CALLCONV krb5_ser_pack_int32
        (krb5_int32,
                krb5_octet **,
                size_t *);
krb5_error_code KRB5_CALLCONV krb5_ser_unpack_int32
        (krb5_int32 *,
                krb5_octet **,
                size_t *);
/* [De]serialize 8-byte integer */
krb5_error_code KRB5_CALLCONV krb5_ser_pack_int64
        (krb5_int64, krb5_octet **, size_t *);
krb5_error_code KRB5_CALLCONV krb5_ser_unpack_int64
        (krb5_int64 *, krb5_octet **, size_t *);
/* [De]serialize byte string */
krb5_error_code KRB5_CALLCONV krb5_ser_pack_bytes
        (krb5_octet *,
                size_t,
                krb5_octet **,
                size_t *);
krb5_error_code KRB5_CALLCONV krb5_ser_unpack_bytes
        (krb5_octet *,
                size_t,
                krb5_octet **,
                size_t *);

krb5_error_code KRB5_CALLCONV krb5int_cc_default
        (krb5_context, krb5_ccache *);

krb5_error_code KRB5_CALLCONV krb5_cc_retrieve_cred_default
        (krb5_context, krb5_ccache, krb5_flags,
                        krb5_creds *, krb5_creds *);

krb5_boolean KRB5_CALLCONV
krb5_creds_compare (krb5_context in_context,
                    krb5_creds *in_creds,
                    krb5_creds *in_compare_creds);

void krb5int_set_prompt_types
        (krb5_context, krb5_prompt_type *);

krb5_error_code
krb5int_generate_and_save_subkey (krb5_context, krb5_auth_context,
                                  krb5_keyblock * /* Old keyblock, not new!  */);

/* set and change password helpers */

krb5_error_code krb5int_mk_chpw_req
        (krb5_context context, krb5_auth_context auth_context,
                        krb5_data *ap_req, char *passwd, krb5_data *packet);
krb5_error_code krb5int_rd_chpw_rep
        (krb5_context context, krb5_auth_context auth_context,
                       krb5_data *packet, int *result_code,
                       krb5_data *result_data);
krb5_error_code KRB5_CALLCONV krb5_chpw_result_code_string
        (krb5_context context, int result_code,
                        char **result_codestr);
krb5_error_code  krb5int_mk_setpw_req
        (krb5_context context, krb5_auth_context auth_context,
                        krb5_data *ap_req, krb5_principal targetprinc, char *passwd, krb5_data *packet);
krb5_error_code krb5int_rd_setpw_rep
        (krb5_context context, krb5_auth_context auth_context,
                       krb5_data *packet, int *result_code,
                       krb5_data *result_data);
krb5_error_code krb5int_setpw_result_code_string
        (krb5_context context, int result_code,
                        const char **result_codestr);

struct srv_dns_entry {
    struct srv_dns_entry *next;
    int priority;
    int weight;
    unsigned short port;
    char *host;
};
#ifdef KRB5_DNS_LOOKUP
krb5_error_code
krb5int_make_srv_query_realm(const krb5_data *realm,
                             const char *service,
                             const char *protocol,
                             struct srv_dns_entry **answers);
void krb5int_free_srv_dns_data(struct srv_dns_entry *);
#endif

/*
 * Convenience function for structure magic number
 */
#define KRB5_VERIFY_MAGIC(structure,magic_number) \
    if ((structure)->magic != (magic_number)) return (magic_number);


/* SUNW14resync XXX - see k5-util.h */
#if 0
int krb5_seteuid  (int);
#endif

char * krb5_getenv(const char *);
int krb5_setenv  (const char *, const char *, int);
void krb5_unsetenv  (const char *);


/* SUNW14resync - (from here to EOF) not sure if we need this but will add it
   for future resync sake */

/* To keep happy libraries which are (for now) accessing internal stuff */

/* Make sure to increment by one when changing the struct */
#define KRB5INT_ACCESS_STRUCT_VERSION 12

#ifndef ANAME_SZ
struct ktext;                   /* from krb.h, for krb524 support */
#endif
typedef struct _krb5int_access {
    /* crypto stuff */
    const struct krb5_hash_provider *md5_hash_provider;
    const struct krb5_enc_provider *arcfour_enc_provider;
    krb5_error_code (* krb5_hmac) (krb5_context, const struct krb5_hash_provider *hash,
                                   const krb5_keyblock *key,
                                   unsigned int icount, const krb5_data *input,
                                   krb5_data *output);
    /* service location and communication */
#ifndef _KERNEL
    krb5_error_code (*sendto_udp) (krb5_context, const krb5_data *msg,
                                   const struct addrlist *, struct sendto_callback_info*, krb5_data *reply,
                                   struct sockaddr *, socklen_t *,struct sockaddr *,
                                   socklen_t *, int *,
                                   int (*msg_handler)(krb5_context, const krb5_data *, void *),
                                   void *msg_handler_data);
    krb5_error_code (*add_host_to_list)(struct addrlist *lp,
                                        const char *hostname,
                                        int port, int secport,
                                        int socktype, int family);
    void (*free_addrlist) (struct addrlist *);
#endif /* _KERNEL */

    krb5_error_code (*make_srv_query_realm)(const krb5_data *realm,
                                            const char *service,
                                            const char *protocol,
                                            struct srv_dns_entry **answers);
    void (*free_srv_dns_data)(struct srv_dns_entry *);
    int (*use_dns_kdc)(krb5_context);
    krb5_error_code (*clean_hostname)(krb5_context, const char *, char *, size_t);

    /* krb4 compatibility stuff -- may be null if not enabled */
    krb5_int32 (*krb_life_to_time)(krb5_int32, int);
    int (*krb_time_to_life)(krb5_int32, krb5_int32);
    int (*krb524_encode_v4tkt)(struct ktext *, char *, unsigned int *);
    krb5_error_code (*krb5int_c_mandatory_cksumtype)
        (krb5_context, krb5_enctype, krb5_cksumtype *);
    krb5_error_code (KRB5_CALLCONV *krb5_ser_pack_int64)
        (krb5_int64, krb5_octet **, size_t *);
    krb5_error_code (KRB5_CALLCONV *krb5_ser_unpack_int64)
        (krb5_int64 *, krb5_octet **, size_t *);

    /* Used for KDB LDAP back end.  */
    krb5_error_code
    (*asn1_ldap_encode_sequence_of_keys) (struct _krb5_key_data *key_data,
                                          krb5_int16 n_key_data,
                                          krb5_int32 mkvno,
                                          krb5_data **code);

    krb5_error_code
    (*asn1_ldap_decode_sequence_of_keys) (krb5_data *in,
                                          struct _krb5_key_data **out,
                                          krb5_int16 *n_key_data,
                                          int *mkvno);

    /*
     * pkinit asn.1 encode/decode functions
     */
    krb5_error_code (*encode_krb5_auth_pack)
        (const krb5_auth_pack *rep, krb5_data **code);
    krb5_error_code (*encode_krb5_auth_pack_draft9)
        (const krb5_auth_pack_draft9 *rep, krb5_data **code);
    krb5_error_code (*encode_krb5_kdc_dh_key_info)
        (const krb5_kdc_dh_key_info *rep, krb5_data **code);
    krb5_error_code (*encode_krb5_pa_pk_as_rep)
        (const krb5_pa_pk_as_rep *rep, krb5_data **code);
    krb5_error_code (*encode_krb5_pa_pk_as_rep_draft9)
        (const krb5_pa_pk_as_rep_draft9 *rep, krb5_data **code);
    krb5_error_code (*encode_krb5_pa_pk_as_req)
        (const krb5_pa_pk_as_req *rep, krb5_data **code);
    krb5_error_code (*encode_krb5_pa_pk_as_req_draft9)
        (const krb5_pa_pk_as_req_draft9 *rep, krb5_data **code);
    krb5_error_code (*encode_krb5_reply_key_pack)
        (const krb5_reply_key_pack *, krb5_data **code);
    krb5_error_code (*encode_krb5_reply_key_pack_draft9)
        (const krb5_reply_key_pack_draft9 *, krb5_data **code);
    krb5_error_code (*encode_krb5_td_dh_parameters)
        (const krb5_algorithm_identifier **, krb5_data **code);
    krb5_error_code (*encode_krb5_td_trusted_certifiers)
        (const krb5_external_principal_identifier **, krb5_data **code);
    krb5_error_code (*encode_krb5_typed_data)
        (const krb5_typed_data **, krb5_data **code);

    krb5_error_code (*decode_krb5_auth_pack)
        (const krb5_data *, krb5_auth_pack **);
    krb5_error_code (*decode_krb5_auth_pack_draft9)
        (const krb5_data *, krb5_auth_pack_draft9 **);
    krb5_error_code (*decode_krb5_pa_pk_as_req)
        (const krb5_data *, krb5_pa_pk_as_req **);
    krb5_error_code (*decode_krb5_pa_pk_as_req_draft9)
        (const krb5_data *, krb5_pa_pk_as_req_draft9 **);
    krb5_error_code (*decode_krb5_pa_pk_as_rep)
        (const krb5_data *, krb5_pa_pk_as_rep **);
    krb5_error_code (*decode_krb5_pa_pk_as_rep_draft9)
        (const krb5_data *, krb5_pa_pk_as_rep_draft9 **);
    krb5_error_code (*decode_krb5_kdc_dh_key_info)
        (const krb5_data *, krb5_kdc_dh_key_info **);
    krb5_error_code (*decode_krb5_principal_name)
        (const krb5_data *, krb5_principal_data **);
    krb5_error_code (*decode_krb5_reply_key_pack)
        (const krb5_data *, krb5_reply_key_pack **);
    krb5_error_code (*decode_krb5_reply_key_pack_draft9)
        (const krb5_data *, krb5_reply_key_pack_draft9 **);
    krb5_error_code (*decode_krb5_td_dh_parameters)
        (const krb5_data *, krb5_algorithm_identifier ***);
    krb5_error_code (*decode_krb5_td_trusted_certifiers)
        (const krb5_data *, krb5_external_principal_identifier ***);
    krb5_error_code (*decode_krb5_typed_data)
        (const krb5_data *, krb5_typed_data ***);

    krb5_error_code (*decode_krb5_as_req)
        (const krb5_data *output, krb5_kdc_req **rep);
    krb5_error_code (*encode_krb5_kdc_req_body)
        (const krb5_kdc_req *rep, krb5_data **code);
    void (KRB5_CALLCONV *krb5_free_kdc_req)
        (krb5_context, krb5_kdc_req * );
    void (*krb5int_set_prompt_types)
        (krb5_context, krb5_prompt_type *);
    krb5_error_code (*encode_krb5_authdata_elt)
        (const krb5_authdata *rep, krb5_data **code);

} krb5int_access;

#define KRB5INT_ACCESS_VERSION \
    (((krb5_int32)((sizeof(krb5int_access) & 0xFFFF) | \
                   (KRB5INT_ACCESS_STRUCT_VERSION << 16))) & 0xFFFFFFFF)

krb5_error_code KRB5_CALLCONV krb5int_accessor
        (krb5int_access*, krb5_int32);

/* Ick -- some krb524 and krb4 support placed in the krb5 library,
   because AFS (and potentially other applications?) use the krb4
   object as an opaque token, which (in some implementations) is not
   in fact a krb4 ticket, so we don't want to drag in the krb4 support
   just to enable this.  */

#define KRB524_SERVICE "krb524"
#define KRB524_PORT 4444

/* v4lifetime.c */
extern krb5_int32 krb5int_krb_life_to_time(krb5_int32, int);
extern int krb5int_krb_time_to_life(krb5_int32, krb5_int32);

/* conv_creds.c */
int krb5int_encode_v4tkt
        (struct ktext *v4tkt, char *buf, unsigned int *encoded_len);

/* send524.c */
int krb5int_524_sendto_kdc
        (krb5_context context, const krb5_data * message,
         const krb5_data * realm, krb5_data * reply,
         struct sockaddr *, socklen_t *);

/* temporary -- this should be under lib/krb5/ccache somewhere */

struct _krb5_ccache {
    krb5_magic magic;
    const struct _krb5_cc_ops *ops;
    krb5_pointer data;
};

/*
 * Per-type ccache cursor.
 */
struct krb5_cc_ptcursor {
    const struct _krb5_cc_ops *ops;
    krb5_pointer data;
};
typedef struct krb5_cc_ptcursor *krb5_cc_ptcursor;

struct _krb5_cc_ops {
    krb5_magic magic;
    char *prefix;
    const char * (KRB5_CALLCONV *get_name) (krb5_context, krb5_ccache);
    krb5_error_code (KRB5_CALLCONV *resolve) (krb5_context, krb5_ccache *,
                                            const char *);
    krb5_error_code (KRB5_CALLCONV *gen_new) (krb5_context, krb5_ccache *);
    krb5_error_code (KRB5_CALLCONV *init) (krb5_context, krb5_ccache,
                                            krb5_principal);
    krb5_error_code (KRB5_CALLCONV *destroy) (krb5_context, krb5_ccache);
    krb5_error_code (KRB5_CALLCONV *close) (krb5_context, krb5_ccache);
    krb5_error_code (KRB5_CALLCONV *store) (krb5_context, krb5_ccache,
                                            krb5_creds *);
    krb5_error_code (KRB5_CALLCONV *retrieve) (krb5_context, krb5_ccache,
                                            krb5_flags, krb5_creds *,
                                            krb5_creds *);
    krb5_error_code (KRB5_CALLCONV *get_princ) (krb5_context, krb5_ccache,
                                            krb5_principal *);
    krb5_error_code (KRB5_CALLCONV *get_first) (krb5_context, krb5_ccache,
                                            krb5_cc_cursor *);
    krb5_error_code (KRB5_CALLCONV *get_next) (krb5_context, krb5_ccache,
                                            krb5_cc_cursor *, krb5_creds *);
    krb5_error_code (KRB5_CALLCONV *end_get) (krb5_context, krb5_ccache,
                                            krb5_cc_cursor *);
    krb5_error_code (KRB5_CALLCONV *remove_cred) (krb5_context, krb5_ccache,
                                            krb5_flags, krb5_creds *);
    krb5_error_code (KRB5_CALLCONV *set_flags) (krb5_context, krb5_ccache,
                                            krb5_flags);
    krb5_error_code (KRB5_CALLCONV *get_flags) (krb5_context, krb5_ccache,
                                                krb5_flags *);
    krb5_error_code (KRB5_CALLCONV *ptcursor_new)(krb5_context,
                                                  krb5_cc_ptcursor *);
    krb5_error_code (KRB5_CALLCONV *ptcursor_next)(krb5_context,
                                                   krb5_cc_ptcursor,
                                                   krb5_ccache *);
    krb5_error_code (KRB5_CALLCONV *ptcursor_free)(krb5_context,
                                                   krb5_cc_ptcursor *);
    krb5_error_code (KRB5_CALLCONV *move)(krb5_context, krb5_ccache);
    krb5_error_code (KRB5_CALLCONV *lastchange)(krb5_context,
                                                krb5_ccache, krb5_timestamp *);
    krb5_error_code (KRB5_CALLCONV *wasdefault)(krb5_context, krb5_ccache,
                                                krb5_timestamp *);
};

extern const krb5_cc_ops *krb5_cc_dfl_ops;

krb5_error_code
krb5int_cc_os_default_name(krb5_context context, char **name);

/*
 * Cursor for iterating over ccache types
 */
struct krb5_cc_typecursor;
typedef struct krb5_cc_typecursor *krb5_cc_typecursor;

krb5_error_code
krb5int_cc_typecursor_new(krb5_context context, krb5_cc_typecursor *cursor);

krb5_error_code
krb5int_cc_typecursor_next(
    krb5_context context,
    krb5_cc_typecursor cursor,
    const struct _krb5_cc_ops **ops);

krb5_error_code
krb5int_cc_typecursor_free(
    krb5_context context,
    krb5_cc_typecursor *cursor);

typedef struct _krb5_donot_replay {
    krb5_magic magic;
    krb5_ui_4 hash;
    char *server;                       /* null-terminated */
    char *client;                       /* null-terminated */
    char *msghash;                      /* null-terminated */
    krb5_int32 cusec;
    krb5_timestamp ctime;
} krb5_donot_replay;

krb5_error_code krb5_rc_default
        (krb5_context,
                krb5_rcache *);
krb5_error_code krb5_rc_resolve_type
        (krb5_context,
                krb5_rcache *,char *);
krb5_error_code krb5_rc_resolve_full
        (krb5_context,
                krb5_rcache *,char *);
char * krb5_rc_get_type
        (krb5_context,
                krb5_rcache);
char * krb5_rc_default_type
        (krb5_context);
char * krb5_rc_default_name
        (krb5_context);
krb5_error_code krb5_auth_to_rep
        (krb5_context,
                krb5_tkt_authent *,
                krb5_donot_replay *);


krb5_error_code KRB5_CALLCONV krb5_rc_initialize
        (krb5_context, krb5_rcache,krb5_deltat);
krb5_error_code KRB5_CALLCONV krb5_rc_recover_or_initialize
        (krb5_context, krb5_rcache,krb5_deltat);
krb5_error_code KRB5_CALLCONV krb5_rc_recover
        (krb5_context, krb5_rcache);
krb5_error_code KRB5_CALLCONV krb5_rc_destroy
        (krb5_context, krb5_rcache);
krb5_error_code KRB5_CALLCONV krb5_rc_close
        (krb5_context, krb5_rcache);
krb5_error_code KRB5_CALLCONV krb5_rc_store
        (krb5_context, krb5_rcache,krb5_donot_replay *);
krb5_error_code KRB5_CALLCONV krb5_rc_expunge
        (krb5_context, krb5_rcache);
krb5_error_code KRB5_CALLCONV krb5_rc_get_lifespan
        (krb5_context, krb5_rcache,krb5_deltat *);
char *KRB5_CALLCONV krb5_rc_get_name
        (krb5_context, krb5_rcache);
krb5_error_code KRB5_CALLCONV krb5_rc_resolve
        (krb5_context, krb5_rcache, char *);

typedef struct _krb5_kt_ops {
    krb5_magic magic;
    char *prefix;
    /* routines always present */
    krb5_error_code (KRB5_CALLCONV *resolve)
        (krb5_context,
                 const char *,
                 krb5_keytab *);
    krb5_error_code (KRB5_CALLCONV *get_name)
        (krb5_context,
                 krb5_keytab,
                 char *,
                 unsigned int);
    krb5_error_code (KRB5_CALLCONV *close)
        (krb5_context,
                 krb5_keytab);
    krb5_error_code (KRB5_CALLCONV *get)
        (krb5_context,
                 krb5_keytab,
                 krb5_const_principal,
                 krb5_kvno,
                 krb5_enctype,
                 krb5_keytab_entry *);
    krb5_error_code (KRB5_CALLCONV *start_seq_get)
        (krb5_context,
                 krb5_keytab,
                 krb5_kt_cursor *);
    krb5_error_code (KRB5_CALLCONV *get_next)
        (krb5_context,
                 krb5_keytab,
                 krb5_keytab_entry *,
                 krb5_kt_cursor *);
    krb5_error_code (KRB5_CALLCONV *end_get)
        (krb5_context,
                 krb5_keytab,
                 krb5_kt_cursor *);
    /* routines to be included on extended version (write routines) */
    krb5_error_code (KRB5_CALLCONV *add)
        (krb5_context,
                 krb5_keytab,
                 krb5_keytab_entry *);
    krb5_error_code (KRB5_CALLCONV *remove)
        (krb5_context,
                 krb5_keytab,
                  krb5_keytab_entry *);

    /* Handle for serializer */
    const krb5_ser_entry *serializer;
} krb5_kt_ops;

extern const krb5_kt_ops krb5_kt_dfl_ops;

extern krb5_error_code krb5int_translate_gai_error (int);

/* Not sure it's ready for exposure just yet.  */
extern krb5_error_code
krb5int_c_mandatory_cksumtype (krb5_context, krb5_enctype, krb5_cksumtype *);

extern int krb5int_crypto_init (void);
extern int krb5int_prng_init(void);


/*
 * SUNW14resync
 * Hack (?) to neuter C99 "inline" which causes warnings w/our build.
 */
#define inline

/* Some data comparison and conversion functions.  */
#if 0
static inline int data_cmp(krb5_data d1, krb5_data d2)
{
    if (d1.length < d2.length) return -1;
    if (d1.length > d2.length) return 1;
    return memcmp(d1.data, d2.data, d1.length);
}
static inline int data_eq (krb5_data d1, krb5_data d2)
{
    return data_cmp(d1, d2) == 0;
}
#else
static inline int data_eq (krb5_data d1, krb5_data d2)
{
    return (d1.length == d2.length
            && !memcmp(d1.data, d2.data, d1.length));
}
#endif
static inline krb5_data string2data (char *str)
{
    krb5_data d;
    d.magic = KV5M_DATA;
    d.length = strlen(str);
    d.data = str;
    return d;
}
/*LINTED*/
static inline int data_eq_string (krb5_data d, char *s)
{
    return data_eq(d, string2data(s));
}
/*LINTED*/
static inline int authdata_eq (krb5_authdata a1, krb5_authdata a2)
{
    return (a1.ad_type == a2.ad_type
            && a1.length == a2.length
            && !memcmp(a1.contents, a2.contents, a1.length));
}


/* Solaris kerberos */
krb5_boolean KRB5_CALLCONV is_in_keytype
        (krb5_const krb5_enctype *keytype,
        int numkeytypes, krb5_enctype enctype);

/*
 * Solaris Kerberos
 * Use krb5_getuid() to select the mechanism to obtain the uid.
 */
extern uid_t    krb5_getuid();

/*
 * Referral definitions, debugging hooks, and subfunctions.
 */
#define        KRB5_REFERRAL_MAXHOPS    5
/* #define DEBUG_REFERRALS */

#ifdef DEBUG_REFERRALS
void krb5int_dbgref_dump_principal(char *, krb5_principal);
#endif

/* Common hostname-parsing code. */
krb5_error_code KRB5_CALLCONV krb5int_clean_hostname
        (krb5_context,
                const char *,
                char *,
                size_t);

/*
 * Solaris Kerberos
 * Kernel & user space realloc.
 */
void *krb5int_realloc
        (void *oldp,
         size_t new_size,
         size_t old_size);
#endif /* _KRB5_INT_H */