Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/x509v3/v3_ncons.c

Index: openssl/crypto/x509v3/v3_ncons.c
diff --git a/openssl/crypto/x509v3/v3_ncons.c b/openssl/crypto/x509v3/v3_ncons.c
deleted file mode 100644
index a01dc64dd22e83443f03d883ed765e12d54c162e..0000000000000000000000000000000000000000
--- a/openssl/crypto/x509v3/v3_ncons.c
+++ /dev/null
@@ -1,505 +0,0 @@
-/* v3_ncons.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) 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(const X509V3_EXT_METHOD *method,
-				  X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
-static int i2r_NAME_CONSTRAINTS(const X509V3_EXT_METHOD *method, 
-				void *a, BIO *bp, int ind);
-static int do_i2r_name_constraints(const 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);
-
-static int nc_match(GENERAL_NAME *gen, NAME_CONSTRAINTS *nc);
-static int nc_match_single(GENERAL_NAME *sub, GENERAL_NAME *gen);
-static int nc_dn(X509_NAME *sub, X509_NAME *nm);
-static int nc_dns(ASN1_IA5STRING *sub, ASN1_IA5STRING *dns);
-static int nc_email(ASN1_IA5STRING *sub, ASN1_IA5STRING *eml);
-static int nc_uri(ASN1_IA5STRING *uri, ASN1_IA5STRING *base);
-
-const 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(const 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(const 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(const 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);
-		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;
-	}
-
-/* Check a certificate conforms to a specified set of constraints.
- * Return values:
- *  X509_V_OK: All constraints obeyed.
- *  X509_V_ERR_PERMITTED_VIOLATION: Permitted subtree violation.
- *  X509_V_ERR_EXCLUDED_VIOLATION: Excluded subtree violation.
- *  X509_V_ERR_SUBTREE_MINMAX: Min or max values present and matching type.
- *  X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE:  Unsupported constraint type.
- *  X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX: bad unsupported constraint syntax.
- *  X509_V_ERR_UNSUPPORTED_NAME_SYNTAX: bad or unsupported syntax of name
-
- */
-
-int NAME_CONSTRAINTS_check(X509 *x, NAME_CONSTRAINTS *nc)
-	{
-	int r, i;
-	X509_NAME *nm;
-
-	nm = X509_get_subject_name(x);
-
-	if (X509_NAME_entry_count(nm) > 0)
-		{
-		GENERAL_NAME gntmp;
-		gntmp.type = GEN_DIRNAME;
-		gntmp.d.directoryName = nm;
-
-		r = nc_match(&gntmp, nc);
-
-		if (r != X509_V_OK)
-			return r;
-
-		gntmp.type = GEN_EMAIL;
-
-
-		/* Process any email address attributes in subject name */
-
-		for (i = -1;;)
-			{
-			X509_NAME_ENTRY *ne;
-			i = X509_NAME_get_index_by_NID(nm,
-						       NID_pkcs9_emailAddress,
-						       i);
-			if (i == -1)
-				break;
-			ne = X509_NAME_get_entry(nm, i);
-			gntmp.d.rfc822Name = X509_NAME_ENTRY_get_data(ne);
-			if (gntmp.d.rfc822Name->type != V_ASN1_IA5STRING)
-				return X509_V_ERR_UNSUPPORTED_NAME_SYNTAX;
-
-			r = nc_match(&gntmp, nc);
-
-			if (r != X509_V_OK)
-				return r;
-			}
-		
-		}
-
-	for (i = 0; i < sk_GENERAL_NAME_num(x->altname); i++)
-		{
-		GENERAL_NAME *gen = sk_GENERAL_NAME_value(x->altname, i);
-		r = nc_match(gen, nc);
-		if (r != X509_V_OK)
-			return r;
-		}
-
-	return X509_V_OK;
-
-	}
-
-static int nc_match(GENERAL_NAME *gen, NAME_CONSTRAINTS *nc)
-	{
-	GENERAL_SUBTREE *sub;
-	int i, r, match = 0;
-
-	/* Permitted subtrees: if any subtrees exist of matching the type
-	 * at least one subtree must match.
-	 */
-
-	for (i = 0; i < sk_GENERAL_SUBTREE_num(nc->permittedSubtrees); i++)
-		{
-		sub = sk_GENERAL_SUBTREE_value(nc->permittedSubtrees, i);
-		if (gen->type != sub->base->type)
-			continue;
-		if (sub->minimum || sub->maximum)
-			return X509_V_ERR_SUBTREE_MINMAX;
-		/* If we already have a match don't bother trying any more */
-		if (match == 2)
-			continue;
-		if (match == 0)
-			match = 1;
-		r = nc_match_single(gen, sub->base);
-		if (r == X509_V_OK)
-			match = 2;
-		else if (r != X509_V_ERR_PERMITTED_VIOLATION)
-			return r;
-		}
-
-	if (match == 1)
-		return X509_V_ERR_PERMITTED_VIOLATION;
-
-	/* Excluded subtrees: must not match any of these */
-
-	for (i = 0; i < sk_GENERAL_SUBTREE_num(nc->excludedSubtrees); i++)
-		{
-		sub = sk_GENERAL_SUBTREE_value(nc->excludedSubtrees, i);
-		if (gen->type != sub->base->type)
-			continue;
-		if (sub->minimum || sub->maximum)
-			return X509_V_ERR_SUBTREE_MINMAX;
-
-		r = nc_match_single(gen, sub->base);
-		if (r == X509_V_OK)
-			return X509_V_ERR_EXCLUDED_VIOLATION;
-		else if (r != X509_V_ERR_PERMITTED_VIOLATION)
-			return r;
-
-		}
-
-	return X509_V_OK;
-
-	}
-
-static int nc_match_single(GENERAL_NAME *gen, GENERAL_NAME *base)
-	{
-	switch(base->type)
-		{
-		case GEN_DIRNAME:
-		return nc_dn(gen->d.directoryName, base->d.directoryName);
-
-		case GEN_DNS:
-		return nc_dns(gen->d.dNSName, base->d.dNSName);
-
-		case GEN_EMAIL:
-		return nc_email(gen->d.rfc822Name, base->d.rfc822Name);
-
-		case GEN_URI:
-		return nc_uri(gen->d.uniformResourceIdentifier,
-					base->d.uniformResourceIdentifier);
-
-		default:
-		return X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE;
-		}
-
-	}
-
-/* directoryName name constraint matching.
- * The canonical encoding of X509_NAME makes this comparison easy. It is
- * matched if the subtree is a subset of the name.
- */
-
-static int nc_dn(X509_NAME *nm, X509_NAME *base)
-	{
-	/* Ensure canonical encodings are up to date.  */
-	if (nm->modified && i2d_X509_NAME(nm, NULL) < 0)
-		return X509_V_ERR_OUT_OF_MEM;
-	if (base->modified && i2d_X509_NAME(base, NULL) < 0)
-		return X509_V_ERR_OUT_OF_MEM;
-	if (base->canon_enclen > nm->canon_enclen)
-		return X509_V_ERR_PERMITTED_VIOLATION;
-	if (memcmp(base->canon_enc, nm->canon_enc, base->canon_enclen))
-		return X509_V_ERR_PERMITTED_VIOLATION;
-	return X509_V_OK;
-	}
-
-static int nc_dns(ASN1_IA5STRING *dns, ASN1_IA5STRING *base)
-	{
-	char *baseptr = (char *)base->data;
-	char *dnsptr = (char *)dns->data;
-	/* Empty matches everything */
-	if (!*baseptr)
-		return X509_V_OK;
-	/* Otherwise can add zero or more components on the left so
-	 * compare RHS and if dns is longer and expect '.' as preceding
-	 * character.
-	 */
-	if (dns->length > base->length)
-		{
-		dnsptr += dns->length - base->length;
-		if (dnsptr[-1] != '.')
-			return X509_V_ERR_PERMITTED_VIOLATION;
-		}
-
-	if (strcasecmp(baseptr, dnsptr))
-			return X509_V_ERR_PERMITTED_VIOLATION;
-
-	return X509_V_OK;
-
-	}
-
-static int nc_email(ASN1_IA5STRING *eml, ASN1_IA5STRING *base)
-	{
-	const char *baseptr = (char *)base->data;
-	const char *emlptr = (char *)eml->data;
-
-	const char *baseat = strchr(baseptr, '@');
-	const char *emlat = strchr(emlptr, '@');
-	if (!emlat)
-		return X509_V_ERR_UNSUPPORTED_NAME_SYNTAX;
-	/* Special case: inital '.' is RHS match */
-	if (!baseat && (*baseptr == '.'))
-		{
-		if (eml->length > base->length)
-			{
-			emlptr += eml->length - base->length;
-			if (!strcasecmp(baseptr, emlptr))
-				return X509_V_OK;
-			}
-		return X509_V_ERR_PERMITTED_VIOLATION;
-		}
-
-	/* If we have anything before '@' match local part */
-
-	if (baseat)
-		{
-		if (baseat != baseptr)
-			{
-			if ((baseat - baseptr) != (emlat - emlptr))
-				return X509_V_ERR_PERMITTED_VIOLATION;
-			/* Case sensitive match of local part */
-			if (strncmp(baseptr, emlptr, emlat - emlptr))
-				return X509_V_ERR_PERMITTED_VIOLATION;
-			}
-		/* Position base after '@' */
-		baseptr = baseat + 1;
-		}
-	emlptr = emlat + 1;
-	/* Just have hostname left to match: case insensitive */
-	if (strcasecmp(baseptr, emlptr))
-		return X509_V_ERR_PERMITTED_VIOLATION;
-
-	return X509_V_OK;
-
-	}
-
-static int nc_uri(ASN1_IA5STRING *uri, ASN1_IA5STRING *base)
-	{
-	const char *baseptr = (char *)base->data;
-	const char *hostptr = (char *)uri->data;
-	const char *p = strchr(hostptr, ':');
-	int hostlen;
-	/* Check for foo:// and skip past it */
-	if (!p || (p[1] != '/') || (p[2] != '/'))
-		return X509_V_ERR_UNSUPPORTED_NAME_SYNTAX;
-	hostptr = p + 3;
-
-	/* Determine length of hostname part of URI */
-
-	/* Look for a port indicator as end of hostname first */
-
-	p = strchr(hostptr, ':');
-	/* Otherwise look for trailing slash */
-	if (!p)
-		p = strchr(hostptr, '/');
-
-	if (!p)
-		hostlen = strlen(hostptr);
-	else
-		hostlen = p - hostptr;
-
-	if (hostlen == 0)
-		return X509_V_ERR_UNSUPPORTED_NAME_SYNTAX;
-
-	/* Special case: inital '.' is RHS match */
-	if (*baseptr == '.')
-		{
-		if (hostlen > base->length)
-			{
-			p = hostptr + hostlen - base->length;
-			if (!strncasecmp(p, baseptr, base->length))
-				return X509_V_OK;
-			}
-		return X509_V_ERR_PERMITTED_VIOLATION;
-		}
-
-	if ((base->length != (int)hostlen) || strncasecmp(hostptr, baseptr, hostlen))
-		return X509_V_ERR_PERMITTED_VIOLATION;
-
-	return X509_V_OK;
-
-	}