/* $OpenBSD: x_attrib.c,v 1.15 2021/11/01 20:53:08 tb Exp $ */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * 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 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ #include #include #include #include #include "x509_lcl.h" /* X509_ATTRIBUTE: this has the following form: * * typedef struct x509_attributes_st * { * ASN1_OBJECT *object; * int single; * union { * char *ptr; * STACK_OF(ASN1_TYPE) *set; * ASN1_TYPE *single; * } value; * } X509_ATTRIBUTE; * * this needs some extra thought because the CHOICE type is * merged with the main structure and because the value can * be anything at all we *must* try the SET OF first because * the ASN1_ANY type will swallow anything including the whole * SET OF structure. */ static const ASN1_TEMPLATE X509_ATTRIBUTE_SET_ch_tt[] = { { .flags = ASN1_TFLG_SET_OF, .tag = 0, .offset = offsetof(X509_ATTRIBUTE, value.set), .field_name = "value.set", .item = &ASN1_ANY_it, }, { .flags = 0, .tag = 0, .offset = offsetof(X509_ATTRIBUTE, value.single), .field_name = "value.single", .item = &ASN1_ANY_it, }, }; const ASN1_ITEM X509_ATTRIBUTE_SET_it = { .itype = ASN1_ITYPE_CHOICE, .utype = offsetof(X509_ATTRIBUTE, single), .templates = X509_ATTRIBUTE_SET_ch_tt, .tcount = sizeof(X509_ATTRIBUTE_SET_ch_tt) / sizeof(ASN1_TEMPLATE), .funcs = NULL, .size = sizeof(X509_ATTRIBUTE), .sname = "X509_ATTRIBUTE", }; static const ASN1_TEMPLATE X509_ATTRIBUTE_seq_tt[] = { { .flags = 0, .tag = 0, .offset = offsetof(X509_ATTRIBUTE, object), .field_name = "object", .item = &ASN1_OBJECT_it, }, /* CHOICE type merged with parent */ { .flags = 0 | ASN1_TFLG_COMBINE, .tag = 0, .offset = 0, .field_name = NULL, .item = &X509_ATTRIBUTE_SET_it, }, }; const ASN1_ITEM X509_ATTRIBUTE_it = { .itype = ASN1_ITYPE_SEQUENCE, .utype = V_ASN1_SEQUENCE, .templates = X509_ATTRIBUTE_seq_tt, .tcount = sizeof(X509_ATTRIBUTE_seq_tt) / sizeof(ASN1_TEMPLATE), .funcs = NULL, .size = sizeof(X509_ATTRIBUTE), .sname = "X509_ATTRIBUTE", }; X509_ATTRIBUTE * d2i_X509_ATTRIBUTE(X509_ATTRIBUTE **a, const unsigned char **in, long len) { return (X509_ATTRIBUTE *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, &X509_ATTRIBUTE_it); } int i2d_X509_ATTRIBUTE(X509_ATTRIBUTE *a, unsigned char **out) { return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_ATTRIBUTE_it); } X509_ATTRIBUTE * X509_ATTRIBUTE_new(void) { return (X509_ATTRIBUTE *)ASN1_item_new(&X509_ATTRIBUTE_it); } void X509_ATTRIBUTE_free(X509_ATTRIBUTE *a) { ASN1_item_free((ASN1_VALUE *)a, &X509_ATTRIBUTE_it); } X509_ATTRIBUTE * X509_ATTRIBUTE_dup(X509_ATTRIBUTE *x) { return ASN1_item_dup(&X509_ATTRIBUTE_it, x); } X509_ATTRIBUTE * X509_ATTRIBUTE_create(int nid, int atrtype, void *value) { X509_ATTRIBUTE *ret = NULL; ASN1_TYPE *val = NULL; ASN1_OBJECT *oid; if ((oid = OBJ_nid2obj(nid)) == NULL) return (NULL); if ((ret = X509_ATTRIBUTE_new()) == NULL) return (NULL); ret->object = oid; ret->single = 0; if ((ret->value.set = sk_ASN1_TYPE_new_null()) == NULL) goto err; if ((val = ASN1_TYPE_new()) == NULL) goto err; if (!sk_ASN1_TYPE_push(ret->value.set, val)) goto err; ASN1_TYPE_set(val, atrtype, value); return (ret); err: if (ret != NULL) X509_ATTRIBUTE_free(ret); if (val != NULL) ASN1_TYPE_free(val); return (NULL); }