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423 giacomo 1
/*
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 *  linux/include/linux/sunrpc/gss_krb5_types.h
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 *
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 *  Adapted from MIT Kerberos 5-1.2.1 lib/include/krb5.h,
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 *  lib/gssapi/krb5/gssapiP_krb5.h, and others
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 *
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 *  Copyright (c) 2000 The Regents of the University of Michigan.
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 *  All rights reserved.
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 *
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 *  Andy Adamson   <andros@umich.edu>
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 *  Bruce Fields   <bfields@umich.edu>
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 */
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/*
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 * Copyright 1995 by the Massachusetts Institute of Technology.
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 * All Rights Reserved.
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 *
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 * Export of this software from the United States of America may
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 *   require a specific license from the United States Government.
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 *   It is the responsibility of any person or organization contemplating
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 *   export to obtain such a license before exporting.
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 *
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 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
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 * distribute this software and its documentation for any purpose and
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 * without fee is hereby granted, provided that the above copyright
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 * notice appear in all copies and that both that copyright notice and
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 * this permission notice appear in supporting documentation, and that
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 * the name of M.I.T. not be used in advertising or publicity pertaining
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 * to distribution of the software without specific, written prior
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 * permission.  Furthermore if you modify this software you must label
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 * your software as modified software and not distribute it in such a
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 * fashion that it might be confused with the original M.I.T. software.
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 * M.I.T. makes no representations about the suitability of
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 * this software for any purpose.  It is provided "as is" without express
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 * or implied warranty.
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 *
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 */
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#include <linux/sunrpc/auth_gss.h>
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#include <linux/sunrpc/gss_err.h>
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#include <linux/sunrpc/gss_asn1.h>
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struct krb5_ctx {
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        int                     initiate; /* 1 = initiating, 0 = accepting */
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        int                     seed_init;
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        unsigned char           seed[16];
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        int                     signalg;
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        int                     sealalg;
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        struct crypto_tfm       *enc;
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        struct crypto_tfm       *seq;
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        s32                     endtime;
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        u32                     seq_send;
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        u32                     seq_recv;
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        struct xdr_netobj       mech_used;
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};
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#define KG_TOK_MIC_MSG    0x0101
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#define KG_TOK_WRAP_MSG   0x0201
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enum sgn_alg {
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        SGN_ALG_DES_MAC_MD5 = 0x0000,
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        SGN_ALG_MD2_5 = 0x0001,
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        SGN_ALG_DES_MAC = 0x0002,
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        SGN_ALG_3 = 0x0003,             /* not published */
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        SGN_ALG_HMAC_MD5 = 0x0011,      /* microsoft w2k; no support */
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        SGN_ALG_HMAC_SHA1_DES3_KD = 0x0004
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};
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enum seal_alg {
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        SEAL_ALG_NONE = 0xffff,
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        SEAL_ALG_DES = 0x0000,
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        SEAL_ALG_1 = 0x0001,            /* not published */
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        SEAL_ALG_MICROSOFT_RC4 = 0x0010,/* microsoft w2k; no support */
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        SEAL_ALG_DES3KD = 0x0002
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};
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#define RSA_MD5_CKSUM_LENGTH 16
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#define CKSUMTYPE_CRC32                 0x0001
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#define CKSUMTYPE_RSA_MD4               0x0002
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#define CKSUMTYPE_RSA_MD4_DES           0x0003
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#define CKSUMTYPE_DESCBC                0x0004
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#define CKSUMTYPE_RSA_MD5               0x0007
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#define CKSUMTYPE_RSA_MD5_DES           0x0008
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#define CKSUMTYPE_NIST_SHA              0x0009
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#define CKSUMTYPE_HMAC_SHA1_DES3        0x000c
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/* from gssapi_err_krb5.h */
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#define KG_CCACHE_NOMATCH                        (39756032L)
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#define KG_KEYTAB_NOMATCH                        (39756033L)
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#define KG_TGT_MISSING                           (39756034L)
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#define KG_NO_SUBKEY                             (39756035L)
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#define KG_CONTEXT_ESTABLISHED                   (39756036L)
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#define KG_BAD_SIGN_TYPE                         (39756037L)
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#define KG_BAD_LENGTH                            (39756038L)
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#define KG_CTX_INCOMPLETE                        (39756039L)
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#define KG_CONTEXT                               (39756040L)
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#define KG_CRED                                  (39756041L)
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#define KG_ENC_DESC                              (39756042L)
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#define KG_BAD_SEQ                               (39756043L)
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#define KG_EMPTY_CCACHE                          (39756044L)
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#define KG_NO_CTYPES                             (39756045L)
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#define KV5M_PRINCIPAL                           (-1760647423L)
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#define KV5M_KEYBLOCK                            (-1760647421L)
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#define KV5M_CHECKSUM                            (-1760647420L)
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#define KV5M_ADDRESS                             (-1760647390L)
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#define KV5M_AUTHENTICATOR                       (-1760647410L)
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#define KV5M_AUTH_CONTEXT                        (-1760647383L)
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#define KV5M_AUTHDATA                            (-1760647414L)
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#define KV5M_GSS_OID                             (-1760647372L)
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#define KV5M_GSS_QUEUE                           (-1760647371L)
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/* per Kerberos v5 protocol spec crypto types from the wire.
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 * these get mapped to linux kernel crypto routines.  
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 */
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#define ENCTYPE_NULL            0x0000
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#define ENCTYPE_DES_CBC_CRC     0x0001  /* DES cbc mode with CRC-32 */
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#define ENCTYPE_DES_CBC_MD4     0x0002  /* DES cbc mode with RSA-MD4 */
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#define ENCTYPE_DES_CBC_MD5     0x0003  /* DES cbc mode with RSA-MD5 */
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#define ENCTYPE_DES_CBC_RAW     0x0004  /* DES cbc mode raw */
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/* XXX deprecated? */
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#define ENCTYPE_DES3_CBC_SHA    0x0005  /* DES-3 cbc mode with NIST-SHA */
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#define ENCTYPE_DES3_CBC_RAW    0x0006  /* DES-3 cbc mode raw */
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#define ENCTYPE_DES_HMAC_SHA1   0x0008
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#define ENCTYPE_DES3_CBC_SHA1   0x0010
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#define ENCTYPE_UNKNOWN         0x01ff
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s32
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krb5_make_checksum(s32 cksumtype,
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                   struct xdr_netobj *input,
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                   struct xdr_netobj *cksum);
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u32
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krb5_make_token(struct krb5_ctx *context_handle, int qop_req,
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        struct xdr_netobj * input_message_buffer,
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        struct xdr_netobj * output_message_buffer, int toktype);
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u32
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krb5_read_token(struct krb5_ctx *context_handle,
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          struct xdr_netobj *input_token_buffer,
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          struct xdr_netobj *message_buffer,
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          int *qop_state, int toktype);
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u32
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krb5_encrypt(struct crypto_tfm * key,
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             void *iv, void *in, void *out, int length);
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u32
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krb5_decrypt(struct crypto_tfm * key,
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             void *iv, void *in, void *out, int length);
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s32
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krb5_make_seq_num(struct crypto_tfm * key,
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                int direction,
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                s32 seqnum, unsigned char *cksum, unsigned char *buf);
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s32
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krb5_get_seq_num(struct crypto_tfm * key,
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               unsigned char *cksum,
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               unsigned char *buf, int *direction, s32 * seqnum);