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Diffstat (limited to 'crypto/heimdal/lib/krb5/codec.c')
| -rw-r--r-- | crypto/heimdal/lib/krb5/codec.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/krb5/codec.c b/crypto/heimdal/lib/krb5/codec.c new file mode 100644 index 0000000..1d94613 --- /dev/null +++ b/crypto/heimdal/lib/krb5/codec.c @@ -0,0 +1,251 @@ +/* + * Copyright (c) 1998 - 1999 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb5_locl.h" + +RCSID("$Id: codec.c,v 1.6 1999/12/02 17:05:08 joda Exp $"); + +/* these functions does what the normal asn.1-functions does, but + converts the keytype to/from the on-the-wire enctypes */ + +#if 1 +#define DECODE(T, K) return decode_ ## T(data, length, t, len) +#define ENCODE(T, K) return encode_ ## T(data, length, t, len) +#else +#define DECODE(T, K) \ +{ \ + krb5_error_code ret; \ + ret = decode_ ## T((void*)data, length, t, len); \ + if(ret) \ + return ret; \ + if(K) \ + ret = krb5_decode_keyblock(context, (K), 1); \ + return ret; \ +} + +#define ENCODE(T, K) \ +{ \ + krb5_error_code ret = 0; \ + if(K) \ + ret = krb5_decode_keyblock(context, (K), 0); \ + if(ret) \ + return ret; \ + return encode_ ## T(data, length, t, len); \ +} +#endif + +krb5_error_code +krb5_decode_EncTicketPart (krb5_context context, + const void *data, + size_t length, + EncTicketPart *t, + size_t *len) +{ + DECODE(EncTicketPart, &t->key); +} + +krb5_error_code +krb5_encode_EncTicketPart (krb5_context context, + void *data, + size_t length, + EncTicketPart *t, + size_t *len) +{ + ENCODE(EncTicketPart, &t->key); +} + +krb5_error_code +krb5_decode_EncASRepPart (krb5_context context, + const void *data, + size_t length, + EncASRepPart *t, + size_t *len) +{ + DECODE(EncASRepPart, &t->key); +} + +krb5_error_code +krb5_encode_EncASRepPart (krb5_context context, + void *data, + size_t length, + EncASRepPart *t, + size_t *len) +{ + ENCODE(EncASRepPart, &t->key); +} + +krb5_error_code +krb5_decode_EncTGSRepPart (krb5_context context, + const void *data, + size_t length, + EncTGSRepPart *t, + size_t *len) +{ + DECODE(EncTGSRepPart, &t->key); +} + +krb5_error_code +krb5_encode_EncTGSRepPart (krb5_context context, + void *data, + size_t length, + EncTGSRepPart *t, + size_t *len) +{ + ENCODE(EncTGSRepPart, &t->key); +} + +krb5_error_code +krb5_decode_EncAPRepPart (krb5_context context, + const void *data, + size_t length, + EncAPRepPart *t, + size_t *len) +{ + DECODE(EncAPRepPart, t->subkey); +} + +krb5_error_code +krb5_encode_EncAPRepPart (krb5_context context, + void *data, + size_t length, + EncAPRepPart *t, + size_t *len) +{ + ENCODE(EncAPRepPart, t->subkey); +} + +krb5_error_code +krb5_decode_Authenticator (krb5_context context, + const void *data, + size_t length, + Authenticator *t, + size_t *len) +{ + DECODE(Authenticator, t->subkey); +} + +krb5_error_code +krb5_encode_Authenticator (krb5_context context, + void *data, + size_t length, + Authenticator *t, + size_t *len) +{ + ENCODE(Authenticator, t->subkey); +} + +krb5_error_code +krb5_decode_EncKrbCredPart (krb5_context context, + const void *data, + size_t length, + EncKrbCredPart *t, + size_t *len) +{ +#if 1 + return decode_EncKrbCredPart(data, length, t, len); +#else + krb5_error_code ret; + int i; + ret = decode_EncKrbCredPart((void*)data, length, t, len); + if(ret) + return ret; + for(i = 0; i < t->ticket_info.len; i++) + if((ret = krb5_decode_keyblock(context, &t->ticket_info.val[i].key, 1))) + break; + return ret; +#endif +} + +krb5_error_code +krb5_encode_EncKrbCredPart (krb5_context context, + void *data, + size_t length, + EncKrbCredPart *t, + size_t *len) +{ +#if 0 + krb5_error_code ret = 0; + int i; + + for(i = 0; i < t->ticket_info.len; i++) + if((ret = krb5_decode_keyblock(context, &t->ticket_info.val[i].key, 0))) + break; + if(ret) return ret; +#endif + return encode_EncKrbCredPart (data, length, t, len); +} + +krb5_error_code +krb5_decode_ETYPE_INFO (krb5_context context, + const void *data, + size_t length, + ETYPE_INFO *t, + size_t *len) +{ +#if 1 + return decode_ETYPE_INFO(data, length, t, len); +#else + krb5_error_code ret; + int i; + + ret = decode_ETYPE_INFO((void*)data, length, t, len); + if(ret) + return ret; + for(i = 0; i < t->len; i++) { + if((ret = krb5_decode_keytype(context, &t->val[i].etype, 1))) + break; + } + return ret; +#endif +} + +krb5_error_code +krb5_encode_ETYPE_INFO (krb5_context context, + void *data, + size_t length, + ETYPE_INFO *t, + size_t *len) +{ +#if 0 + krb5_error_code ret = 0; + + int i; + /* XXX this will break, since we need one key-info for each enctype */ + /* XXX or do we? */ + for(i = 0; i < t->len; i++) + if((ret = krb5_decode_keytype(context, &t->val[i].etype, 0))) + break; + if(ret) return ret; +#endif + return encode_ETYPE_INFO (data, length, t, len); +} |
