v3_ncons.c
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上传日期:2020-08-09
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- /* v3_ncons.c */
- /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project.
- */
- /* ====================================================================
- * Copyright (c) 2003 The OpenSSL Project. 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. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
- #include <stdio.h>
- #include "cryptlib.h"
- #include <openssl/asn1t.h>
- #include <openssl/conf.h>
- #include <openssl/x509v3.h>
- static void *v2i_NAME_CONSTRAINTS(X509V3_EXT_METHOD *method,
- X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
- static int i2r_NAME_CONSTRAINTS(X509V3_EXT_METHOD *method,
- void *a, BIO *bp, int ind);
- static int do_i2r_name_constraints(X509V3_EXT_METHOD *method,
- STACK_OF(GENERAL_SUBTREE) *trees,
- BIO *bp, int ind, char *name);
- static int print_nc_ipadd(BIO *bp, ASN1_OCTET_STRING *ip);
- X509V3_EXT_METHOD v3_name_constraints = {
- NID_name_constraints, 0,
- ASN1_ITEM_ref(NAME_CONSTRAINTS),
- 0,0,0,0,
- 0,0,
- 0, v2i_NAME_CONSTRAINTS,
- i2r_NAME_CONSTRAINTS,0,
- NULL
- };
- ASN1_SEQUENCE(GENERAL_SUBTREE) = {
- ASN1_SIMPLE(GENERAL_SUBTREE, base, GENERAL_NAME),
- ASN1_IMP_OPT(GENERAL_SUBTREE, minimum, ASN1_INTEGER, 0),
- ASN1_IMP_OPT(GENERAL_SUBTREE, maximum, ASN1_INTEGER, 1)
- } ASN1_SEQUENCE_END(GENERAL_SUBTREE)
- ASN1_SEQUENCE(NAME_CONSTRAINTS) = {
- ASN1_IMP_SEQUENCE_OF_OPT(NAME_CONSTRAINTS, permittedSubtrees,
- GENERAL_SUBTREE, 0),
- ASN1_IMP_SEQUENCE_OF_OPT(NAME_CONSTRAINTS, excludedSubtrees,
- GENERAL_SUBTREE, 1),
- } ASN1_SEQUENCE_END(NAME_CONSTRAINTS)
-
- IMPLEMENT_ASN1_ALLOC_FUNCTIONS(GENERAL_SUBTREE)
- IMPLEMENT_ASN1_ALLOC_FUNCTIONS(NAME_CONSTRAINTS)
- static void *v2i_NAME_CONSTRAINTS(X509V3_EXT_METHOD *method,
- X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
- {
- int i;
- CONF_VALUE tval, *val;
- STACK_OF(GENERAL_SUBTREE) **ptree = NULL;
- NAME_CONSTRAINTS *ncons = NULL;
- GENERAL_SUBTREE *sub = NULL;
- ncons = NAME_CONSTRAINTS_new();
- if (!ncons)
- goto memerr;
- for(i = 0; i < sk_CONF_VALUE_num(nval); i++)
- {
- val = sk_CONF_VALUE_value(nval, i);
- if (!strncmp(val->name, "permitted", 9) && val->name[9])
- {
- ptree = &ncons->permittedSubtrees;
- tval.name = val->name + 10;
- }
- else if (!strncmp(val->name, "excluded", 8) && val->name[8])
- {
- ptree = &ncons->excludedSubtrees;
- tval.name = val->name + 9;
- }
- else
- {
- X509V3err(X509V3_F_V2I_NAME_CONSTRAINTS, X509V3_R_INVALID_SYNTAX);
- goto err;
- }
- tval.value = val->value;
- sub = GENERAL_SUBTREE_new();
- if (!v2i_GENERAL_NAME_ex(sub->base, method, ctx, &tval, 1))
- goto err;
- if (!*ptree)
- *ptree = sk_GENERAL_SUBTREE_new_null();
- if (!*ptree || !sk_GENERAL_SUBTREE_push(*ptree, sub))
- goto memerr;
- sub = NULL;
- }
- return ncons;
- memerr:
- X509V3err(X509V3_F_V2I_NAME_CONSTRAINTS, ERR_R_MALLOC_FAILURE);
- err:
- if (ncons)
- NAME_CONSTRAINTS_free(ncons);
- if (sub)
- GENERAL_SUBTREE_free(sub);
- return NULL;
- }
-
-
- static int i2r_NAME_CONSTRAINTS(X509V3_EXT_METHOD *method,
- void *a, BIO *bp, int ind)
- {
- NAME_CONSTRAINTS *ncons = a;
- do_i2r_name_constraints(method, ncons->permittedSubtrees,
- bp, ind, "Permitted");
- do_i2r_name_constraints(method, ncons->excludedSubtrees,
- bp, ind, "Excluded");
- return 1;
- }
- static int do_i2r_name_constraints(X509V3_EXT_METHOD *method,
- STACK_OF(GENERAL_SUBTREE) *trees,
- BIO *bp, int ind, char *name)
- {
- GENERAL_SUBTREE *tree;
- int i;
- if (sk_GENERAL_SUBTREE_num(trees) > 0)
- BIO_printf(bp, "%*s%s:n", ind, "", name);
- for(i = 0; i < sk_GENERAL_SUBTREE_num(trees); i++)
- {
- tree = sk_GENERAL_SUBTREE_value(trees, i);
- BIO_printf(bp, "%*s", ind + 2, "");
- if (tree->base->type == GEN_IPADD)
- print_nc_ipadd(bp, tree->base->d.ip);
- else
- GENERAL_NAME_print(bp, tree->base);
- tree = sk_GENERAL_SUBTREE_value(trees, i);
- BIO_puts(bp, "n");
- }
- return 1;
- }
- static int print_nc_ipadd(BIO *bp, ASN1_OCTET_STRING *ip)
- {
- int i, len;
- unsigned char *p;
- p = ip->data;
- len = ip->length;
- BIO_puts(bp, "IP:");
- if(len == 8)
- {
- BIO_printf(bp, "%d.%d.%d.%d/%d.%d.%d.%d",
- p[0], p[1], p[2], p[3],
- p[4], p[5], p[6], p[7]);
- }
- else if(len == 32)
- {
- for (i = 0; i < 16; i++)
- {
- BIO_printf(bp, "%X", p[0] << 8 | p[1]);
- p += 2;
- if (i == 7)
- BIO_puts(bp, "/");
- else if (i != 15)
- BIO_puts(bp, ":");
- }
- }
- else
- BIO_printf(bp, "IP Address:<invalid>");
- return 1;
- }