//+-----------------------------------------------------------------------
//
// Microsoft Windows
//
// Copyright (c) Microsoft Corporation 1992 - 1996
//
// File:        userapi.h
//
// Contents:    Structures and prototypes for user mode Kerberos functions
//
//
// History:     3-May-1996      Created         MikeSw
//
//------------------------------------------------------------------------

#ifndef __USERAPI_H__
#define __USERAPI_H__

#include "krbprgma.h"
#include <gssapiP.h>

#ifdef EXTERN
#undef EXTERN
#endif

#ifdef USERAPI_ALLOCATE
#define EXTERN
#else
#define EXTERN extern
#endif // USERAPI_ALLOCATE


#ifndef WIN32_CHICAGO
EXTERN PSID KerbGlobalLocalSystemSid;
EXTERN PSID KerbGlobalAliasAdminsSid;
#endif // WIN32_CHICAGO

extern gss_OID_desc * gss_mech_krb5;
extern gss_OID_desc * gss_mech_krb5_new;
extern gss_OID_desc * gss_mech_krb5_u2u;
extern gss_OID_desc * gss_mech_krb5_spnego;


typedef struct _KERB_GSS_SIGNATURE {
    BYTE SignatureAlgorithm[2];           // see below table for values
    union {
        BYTE SignFiller[4];               // filler, must be ff ff ff ff
        struct {
            BYTE SealAlgorithm[2];
            BYTE SealFiller[2];
        };
    };
    BYTE SequenceNumber[8];
    BYTE Checksum[8];
} KERB_GSS_SIGNATURE, *PKERB_GSS_SIGNATURE;

#define KERB_GSS_SIG_CONFOUNDER_SIZE    8

typedef struct _KERB_GSS_SEAL_SIGNATURE {
    KERB_GSS_SIGNATURE Signature;
    BYTE Confounder[KERB_GSS_SIG_CONFOUNDER_SIZE];
} KERB_GSS_SEAL_SIGNATURE, *PKERB_GSS_SEAL_SIGNATURE;

typedef ULONG KERB_NULL_SIGNATURE, *PKERB_NULL_SIGNATURE;



//
// This value goes in the second bye of the signature algorithm
//

#define KERB_GSS_SIG_SECOND 0x00

//
// These values go in the first byte
//

#define KERB_GSS_SIG_DES_MAC_MD5        0x00
#define KERB_GSS_SIG_MD25               0x01
#define KERB_GSS_SIG_DES_MAC            0x02


#define KERB_GSS_SIG_HMAC               0x11

//
// These are sealing algorithm values
//

#define KERB_GSS_SEAL_DES_CBC           0x00
#define KERB_GSS_SEAL_RC4_OLD           0x11
#define KERB_GSS_SEAL_RC4               0x10
#define KERB_GSS_NO_SEAL                0xff
#define KERB_GSS_NO_SEAL_SECOND         0xff

//
// These are the flags passed in to MakeSignature and VerifySignature
// corresponding to the above flags, taken from RFC 1964
//

#define GSS_KRB5_INTEG_C_QOP_DEFAULT    0x0
#define GSS_KRB5_INTEG_C_QOP_MD5        0x1
#define GSS_KRB5_INTEG_C_QOP_DES_MD5    0x2
#define GSS_KRB5_INTEG_C_QOP_DES_MAC    0x3


/** constants **/

#define CKSUMTYPE_KG_CB         0x8003

#define KG_TOK_CTX_AP_REQ       0x0100
#define KG_TOK_CTX_AP_REP       0x0200
#define KG_TOK_CTX_ERROR        0x0300
#define KG_TOK_SIGN_MSG         0x0101
#define KG_TOK_SEAL_MSG         0x0201
#define KG_TOK_MIC_MSG          0x0101
#define KG_TOK_WRAP_MSG         0x0201
#define KG_TOK_DEL_CTX          0x0102
#define KG_TOK_CTX_TGT_REQ      0x0400
#define KG_TOK_CTX_TGT_REP      0x0401

#define KRB5_GSS_FOR_CREDS_OPTION 1

#define KERB_SIGN_FLAGS (ISC_RET_INTEGRITY | ISC_RET_SEQUENCE_DETECT | ISC_RET_REPLAY_DETECT)

#define KERB_IS_DES_ENCRYPTION(_x_) ((((_x_) >= KERB_ETYPE_DES_CBC_CRC) && \
                                      ((_x_) <= KERB_ETYPE_DES_CBC_MD5)) || \
                                     ((_x_) == KERB_ETYPE_DES_PLAIN))
#endif // __USERAPI_H__