1/* asn1t.h */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2006.
4 */
5/* ====================================================================
6 * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in
17 *    the documentation and/or other materials provided with the
18 *    distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 *    software must display the following acknowledgment:
22 *    "This product includes software developed by the OpenSSL Project
23 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 *    endorse or promote products derived from this software without
27 *    prior written permission. For written permission, please contact
28 *    licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 *    nor may "OpenSSL" appear in their names without prior written
32 *    permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 *    acknowledgment:
36 *    "This product includes software developed by the OpenSSL Project
37 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com).  This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59/* Internal ASN1 structures and functions: not for application use */
60
61/* ASN1 print context structure */
62
63struct asn1_pctx_st
64	{
65	unsigned long flags;
66	unsigned long nm_flags;
67	unsigned long cert_flags;
68	unsigned long oid_flags;
69	unsigned long str_flags;
70	} /* ASN1_PCTX */;
71
72/* ASN1 public key method structure */
73
74struct evp_pkey_asn1_method_st
75	{
76	int pkey_id;
77	int pkey_base_id;
78	unsigned long pkey_flags;
79
80	char *pem_str;
81	char *info;
82
83	int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub);
84	int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk);
85	int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
86	int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent,
87							ASN1_PCTX *pctx);
88
89	int (*priv_decode)(EVP_PKEY *pk, PKCS8_PRIV_KEY_INFO *p8inf);
90	int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk);
91	int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent,
92							ASN1_PCTX *pctx);
93
94	int (*pkey_size)(const EVP_PKEY *pk);
95	int (*pkey_bits)(const EVP_PKEY *pk);
96
97	int (*param_decode)(EVP_PKEY *pkey,
98				const unsigned char **pder, int derlen);
99	int (*param_encode)(const EVP_PKEY *pkey, unsigned char **pder);
100	int (*param_missing)(const EVP_PKEY *pk);
101	int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from);
102	int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
103	int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
104							ASN1_PCTX *pctx);
105	int (*sig_print)(BIO *out,
106			 const X509_ALGOR *sigalg, const ASN1_STRING *sig,
107					 int indent, ASN1_PCTX *pctx);
108
109
110	void (*pkey_free)(EVP_PKEY *pkey);
111	int (*pkey_ctrl)(EVP_PKEY *pkey, int op, long arg1, void *arg2);
112
113	/* Legacy functions for old PEM */
114
115	int (*old_priv_decode)(EVP_PKEY *pkey,
116				const unsigned char **pder, int derlen);
117	int (*old_priv_encode)(const EVP_PKEY *pkey, unsigned char **pder);
118	/* Custom ASN1 signature verification */
119	int (*item_verify)(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn,
120				X509_ALGOR *a, ASN1_BIT_STRING *sig,
121				EVP_PKEY *pkey);
122	int (*item_sign)(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn,
123				X509_ALGOR *alg1, X509_ALGOR *alg2,
124				ASN1_BIT_STRING *sig);
125
126	} /* EVP_PKEY_ASN1_METHOD */;
127
128/* Method to handle CRL access.
129 * In general a CRL could be very large (several Mb) and can consume large
130 * amounts of resources if stored in memory by multiple processes.
131 * This method allows general CRL operations to be redirected to more
132 * efficient callbacks: for example a CRL entry database.
133 */
134
135#define X509_CRL_METHOD_DYNAMIC		1
136
137struct x509_crl_method_st
138	{
139	int flags;
140	int (*crl_init)(X509_CRL *crl);
141	int (*crl_free)(X509_CRL *crl);
142	int (*crl_lookup)(X509_CRL *crl, X509_REVOKED **ret,
143				ASN1_INTEGER *ser, X509_NAME *issuer);
144	int (*crl_verify)(X509_CRL *crl, EVP_PKEY *pk);
145	};
146