1 /* -*- mode: c; indent-tabs-mode: nil -*- */
2 /*
3 * src/lib/krb5/asn.1/krb5_encode.c
4 *
5 * Copyright 1994, 2008 by the Massachusetts Institute of Technology.
6 * All Rights Reserved.
7 *
8 * Export of this software from the United States of America may
9 * require a specific license from the United States Government.
10 * It is the responsibility of any person or organization contemplating
11 * export to obtain such a license before exporting.
12 *
13 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
14 * distribute this software and its documentation for any purpose and
15 * without fee is hereby granted, provided that the above copyright
16 * notice appear in all copies and that both that copyright notice and
17 * this permission notice appear in supporting documentation, and that
18 * the name of M.I.T. not be used in advertising or publicity pertaining
19 * to distribution of the software without specific, written prior
20 * permission. Furthermore if you modify this software you must label
21 * your software as modified software and not distribute it in such a
22 * fashion that it might be confused with the original M.I.T. software.
23 * M.I.T. makes no representations about the suitability of
24 * this software for any purpose. It is provided "as is" without express
25 * or implied warranty.
26 */
27
28 #include "k5-int.h"
29 #include "asn1_k_encode.h"
30 #include "asn1_encode.h"
31 #include "krbasn1.h"
32 #include "asn1buf.h"
33 #include "asn1_make.h"
34
35 /**************** Macros (these save a lot of typing) ****************/
36
37 /* setup() -- create and initialize bookkeeping variables
38 retval: stores error codes returned from subroutines
39 buf: the coding buffer
40 length: length of the most-recently produced encoding
41 sum: cumulative length of the entire encoding */
42 #define krb5_setup()\
43 asn1_error_code retval;\
44 unsigned int length, sum = 0;\
45 asn1buf *buf=NULL;\
46 krb5_data *tmpcode;\
47 \
48 *code = NULL;\
49 \
50 if (rep == NULL) return ASN1_MISSING_FIELD;\
51 \
52 retval = asn1buf_create(&buf);\
53 if (retval) return retval
54
55 /* produce the final output and clean up the workspace */
56 #define krb5_cleanup()\
57 retval = asn12krb5_buf(buf,&tmpcode);\
58 error:\
59 asn1buf_destroy(&buf);\
60 if (retval)\
61 return retval;\
62 *code = tmpcode;\
63 return 0
64
65 #ifndef DISABLE_PKINIT
encode_krb5_pa_pk_as_req(const krb5_pa_pk_as_req * rep,krb5_data ** code)66 krb5_error_code encode_krb5_pa_pk_as_req(const krb5_pa_pk_as_req *rep, krb5_data **code)
67 {
68 krb5_setup();
69 retval = asn1_encode_pa_pk_as_req(buf,rep,&length);
70 if (retval) goto error;
71 sum += length;
72 krb5_cleanup();
73 }
74
encode_krb5_pa_pk_as_req_draft9(const krb5_pa_pk_as_req_draft9 * rep,krb5_data ** code)75 krb5_error_code encode_krb5_pa_pk_as_req_draft9(const krb5_pa_pk_as_req_draft9 *rep, krb5_data **code)
76 {
77 krb5_setup();
78 retval = asn1_encode_pa_pk_as_req_draft9(buf,rep,&length);
79 if (retval) goto error;
80 sum += length;
81 krb5_cleanup();
82 }
83
encode_krb5_pa_pk_as_rep(const krb5_pa_pk_as_rep * rep,krb5_data ** code)84 krb5_error_code encode_krb5_pa_pk_as_rep(const krb5_pa_pk_as_rep *rep, krb5_data **code)
85 {
86 krb5_setup();
87 retval = asn1_encode_pa_pk_as_rep(buf,rep,&length);
88 if (retval) goto error;
89 sum += length;
90 krb5_cleanup();
91 }
92
encode_krb5_pa_pk_as_rep_draft9(const krb5_pa_pk_as_rep_draft9 * rep,krb5_data ** code)93 krb5_error_code encode_krb5_pa_pk_as_rep_draft9(const krb5_pa_pk_as_rep_draft9 *rep, krb5_data **code)
94 {
95 krb5_setup();
96 retval = asn1_encode_pa_pk_as_rep_draft9(buf,rep,&length);
97 if (retval) goto error;
98 sum += length;
99 krb5_cleanup();
100 }
101
encode_krb5_auth_pack(const krb5_auth_pack * rep,krb5_data ** code)102 krb5_error_code encode_krb5_auth_pack(const krb5_auth_pack *rep, krb5_data **code)
103 {
104 krb5_setup();
105 retval = asn1_encode_auth_pack(buf,rep,&length);
106 if (retval) goto error;
107 sum += length;
108 krb5_cleanup();
109 }
110
encode_krb5_auth_pack_draft9(const krb5_auth_pack_draft9 * rep,krb5_data ** code)111 krb5_error_code encode_krb5_auth_pack_draft9(const krb5_auth_pack_draft9 *rep, krb5_data **code)
112 {
113 krb5_setup();
114 retval = asn1_encode_auth_pack_draft9(buf,rep,&length);
115 if (retval) goto error;
116 sum += length;
117 krb5_cleanup();
118 }
119
encode_krb5_kdc_dh_key_info(const krb5_kdc_dh_key_info * rep,krb5_data ** code)120 krb5_error_code encode_krb5_kdc_dh_key_info(const krb5_kdc_dh_key_info *rep, krb5_data **code)
121 {
122 krb5_setup();
123 retval = asn1_encode_kdc_dh_key_info(buf,rep,&length);
124 if (retval) goto error;
125 sum += length;
126 krb5_cleanup();
127 }
128
encode_krb5_reply_key_pack(const krb5_reply_key_pack * rep,krb5_data ** code)129 krb5_error_code encode_krb5_reply_key_pack(const krb5_reply_key_pack *rep, krb5_data **code)
130 {
131 krb5_setup();
132 retval = asn1_encode_reply_key_pack(buf,rep,&length);
133 if (retval) goto error;
134 sum += length;
135 krb5_cleanup();
136 }
137
encode_krb5_reply_key_pack_draft9(const krb5_reply_key_pack_draft9 * rep,krb5_data ** code)138 krb5_error_code encode_krb5_reply_key_pack_draft9(const krb5_reply_key_pack_draft9 *rep, krb5_data **code)
139 {
140 krb5_setup();
141 retval = asn1_encode_reply_key_pack_draft9(buf,rep,&length);
142 if (retval) goto error;
143 sum += length;
144 krb5_cleanup();
145 }
146
encode_krb5_td_trusted_certifiers(const krb5_external_principal_identifier ** rep,krb5_data ** code)147 krb5_error_code encode_krb5_td_trusted_certifiers(const krb5_external_principal_identifier **rep, krb5_data **code)
148 {
149 krb5_setup();
150 retval = asn1_encode_td_trusted_certifiers(buf,rep,&length);
151 if (retval) goto error;
152 sum += length;
153 krb5_cleanup();
154 }
155
encode_krb5_td_dh_parameters(const krb5_algorithm_identifier ** rep,krb5_data ** code)156 krb5_error_code encode_krb5_td_dh_parameters(const krb5_algorithm_identifier **rep, krb5_data **code)
157 {
158 krb5_setup();
159 retval = asn1_encode_sequence_of_algorithm_identifier(buf,rep,&length);
160 if (retval) goto error;
161 sum += length;
162 krb5_cleanup();
163 }
164 #endif /* DISABLE_PKINIT */
165
encode_krb5_typed_data(const krb5_typed_data ** rep,krb5_data ** code)166 krb5_error_code encode_krb5_typed_data(const krb5_typed_data **rep, krb5_data **code)
167 {
168 krb5_setup();
169 retval = asn1_encode_sequence_of_typed_data(buf,rep,&length);
170 if (retval) goto error;
171 sum += length;
172 krb5_cleanup();
173 }
174
175