Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/x509v3/v3_alt.c	Lines:	0	268	0.0 %
Date:	2017-11-13	Branches:	0	199	0.0 %


/* $OpenBSD: v3_alt.c,v 1.27 2017/01/29 17:49:23 beck Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
 * project.
 */
/* ====================================================================
 * Copyright (c) 1999-2003 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 <string.h>

#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/x509v3.h>

static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
    X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
    X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p);
static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens);
static int do_othername(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx);
static int do_dirname(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx);

const X509V3_EXT_METHOD v3_alt[] = {
	{
		.ext_nid = NID_subject_alt_name,
		.ext_flags = 0,
		.it = &GENERAL_NAMES_it,
		.ext_new = NULL,
		.ext_free = NULL,
		.d2i = NULL,
		.i2d = NULL,
		.i2s = NULL,
		.s2i = NULL,
		.i2v = (X509V3_EXT_I2V)i2v_GENERAL_NAMES,
		.v2i = (X509V3_EXT_V2I)v2i_subject_alt,
		.i2r = NULL,
		.r2i = NULL,
		.usr_data = NULL,
	},
	{
		.ext_nid = NID_issuer_alt_name,
		.ext_flags = 0,
		.it = &GENERAL_NAMES_it,
		.ext_new = NULL,
		.ext_free = NULL,
		.d2i = NULL,
		.i2d = NULL,
		.i2s = NULL,
		.s2i = NULL,
		.i2v = (X509V3_EXT_I2V)i2v_GENERAL_NAMES,
		.v2i = (X509V3_EXT_V2I)v2i_issuer_alt,
		.i2r = NULL,
		.r2i = NULL,
		.usr_data = NULL,
	},
	{
		.ext_nid = NID_certificate_issuer,
		.ext_flags = 0,
		.it = &GENERAL_NAMES_it,
		.ext_new = NULL,
		.ext_free = NULL,
		.d2i = NULL,
		.i2d = NULL,
		.i2s = NULL,
		.s2i = NULL,
		.i2v = (X509V3_EXT_I2V)i2v_GENERAL_NAMES,
		.v2i = NULL,
		.i2r = NULL,
		.r2i = NULL,
		.usr_data = NULL,
	},
};

STACK_OF(CONF_VALUE) *
i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method, GENERAL_NAMES *gens,
    STACK_OF(CONF_VALUE) *ret)
{
	int i;
	GENERAL_NAME *gen;

	for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
		gen = sk_GENERAL_NAME_value(gens, i);
		ret = i2v_GENERAL_NAME(method, gen, ret);
	}
	if (!ret)
		return sk_CONF_VALUE_new_null();
	return ret;
}

STACK_OF(CONF_VALUE) *
i2v_GENERAL_NAME(X509V3_EXT_METHOD *method, GENERAL_NAME *gen,
    STACK_OF(CONF_VALUE) *ret)
{
	unsigned char *p;
	char oline[256], htmp[5];
	int i;

	switch (gen->type) {
	case GEN_OTHERNAME:
		X509V3_add_value("othername", "<unsupported>", &ret);
		break;

	case GEN_X400:
		X509V3_add_value("X400Name", "<unsupported>", &ret);
		break;

	case GEN_EDIPARTY:
		X509V3_add_value("EdiPartyName", "<unsupported>", &ret);
		break;

	case GEN_EMAIL:
		X509V3_add_value_uchar("email", gen->d.ia5->data, &ret);
		break;

	case GEN_DNS:
		X509V3_add_value_uchar("DNS", gen->d.ia5->data, &ret);
		break;

	case GEN_URI:
		X509V3_add_value_uchar("URI", gen->d.ia5->data, &ret);
		break;

	case GEN_DIRNAME:
		X509_NAME_oneline(gen->d.dirn, oline, 256);
		X509V3_add_value("DirName", oline, &ret);
		break;

	case GEN_IPADD:
		p = gen->d.ip->data;
		if (gen->d.ip->length == 4)
			(void) snprintf(oline, sizeof oline,
			    "%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
		else if (gen->d.ip->length == 16) {
			oline[0] = 0;
			for (i = 0; i < 8; i++) {
				(void) snprintf(htmp, sizeof htmp,
				    "%X", p[0] << 8 | p[1]);
				p += 2;
				strlcat(oline, htmp, sizeof(oline));
				if (i != 7)
					strlcat(oline, ":", sizeof(oline));
			}
		} else {
			X509V3_add_value("IP Address", "<invalid>", &ret);
			break;
		}
		X509V3_add_value("IP Address", oline, &ret);
		break;

	case GEN_RID:
		i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
		X509V3_add_value("Registered ID", oline, &ret);
		break;
	}
	return ret;
}

int
GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen)
{
	unsigned char *p;
	int i;

	switch (gen->type) {
	case GEN_OTHERNAME:
		BIO_printf(out, "othername:<unsupported>");
		break;

	case GEN_X400:
		BIO_printf(out, "X400Name:<unsupported>");
		break;

	case GEN_EDIPARTY:
		/* Maybe fix this: it is supported now */
		BIO_printf(out, "EdiPartyName:<unsupported>");
		break;

	case GEN_EMAIL:
		BIO_printf(out, "email:%s", gen->d.ia5->data);
		break;

	case GEN_DNS:
		BIO_printf(out, "DNS:%s", gen->d.ia5->data);
		break;

	case GEN_URI:
		BIO_printf(out, "URI:%s", gen->d.ia5->data);
		break;

	case GEN_DIRNAME:
		BIO_printf(out, "DirName: ");
		X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE);
		break;

	case GEN_IPADD:
		p = gen->d.ip->data;
		if (gen->d.ip->length == 4)
			BIO_printf(out, "IP Address:%d.%d.%d.%d",
			    p[0], p[1], p[2], p[3]);
		else if (gen->d.ip->length == 16) {
			BIO_printf(out, "IP Address");
			for (i = 0; i < 8; i++) {
				BIO_printf(out, ":%X", p[0] << 8 | p[1]);
				p += 2;
			}
			BIO_puts(out, "\n");
		} else {
			BIO_printf(out, "IP Address:<invalid>");
			break;
		}
		break;

	case GEN_RID:
		BIO_printf(out, "Registered ID");
		i2a_ASN1_OBJECT(out, gen->d.rid);
		break;
	}
	return 1;
}

static GENERAL_NAMES *
v2i_issuer_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
    STACK_OF(CONF_VALUE) *nval)
{
	GENERAL_NAMES *gens = NULL;
	CONF_VALUE *cnf;
	int i;

	if ((gens = sk_GENERAL_NAME_new_null()) == NULL) {
		X509V3error(ERR_R_MALLOC_FAILURE);
		return NULL;
	}
	for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
		cnf = sk_CONF_VALUE_value(nval, i);
		if (name_cmp(cnf->name, "issuer") == 0 && cnf->value != NULL &&
		    strcmp(cnf->value, "copy") == 0) {
			if (!copy_issuer(ctx, gens))
				goto err;
		} else {
			GENERAL_NAME *gen;
			if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
				goto err;
			if (sk_GENERAL_NAME_push(gens, gen) == 0) {
				GENERAL_NAME_free(gen);
				goto err;
			}
		}
	}
	return gens;

err:
	sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
	return NULL;
}

/* Append subject altname of issuer to issuer alt name of subject */

static int
copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens)
{
	GENERAL_NAMES *ialt;
	GENERAL_NAME *gen;
	X509_EXTENSION *ext;
	int i;

	if (ctx && (ctx->flags == CTX_TEST))
		return 1;
	if (!ctx || !ctx->issuer_cert) {
		X509V3error(X509V3_R_NO_ISSUER_DETAILS);
		goto err;
	}
	i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
	if (i < 0)
		return 1;
	if (!(ext = X509_get_ext(ctx->issuer_cert, i)) ||
	    !(ialt = X509V3_EXT_d2i(ext))) {
		X509V3error(X509V3_R_ISSUER_DECODE_ERROR);
		goto err;
	}

	for (i = 0; i < sk_GENERAL_NAME_num(ialt); i++) {
		gen = sk_GENERAL_NAME_value(ialt, i);
		if (!sk_GENERAL_NAME_push(gens, gen)) {
			X509V3error(ERR_R_MALLOC_FAILURE);
			goto err;
		}
	}
	sk_GENERAL_NAME_free(ialt);

	return 1;

err:
	return 0;

}

static GENERAL_NAMES *
v2i_subject_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
    STACK_OF(CONF_VALUE) *nval)
{
	GENERAL_NAMES *gens = NULL;
	CONF_VALUE *cnf;
	int i;

	if (!(gens = sk_GENERAL_NAME_new_null())) {
		X509V3error(ERR_R_MALLOC_FAILURE);
		return NULL;
	}
	for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
		cnf = sk_CONF_VALUE_value(nval, i);
		if (!name_cmp(cnf->name, "email") && cnf->value &&
		    !strcmp(cnf->value, "copy")) {
			if (!copy_email(ctx, gens, 0))
				goto err;
		} else if (!name_cmp(cnf->name, "email") && cnf->value &&
		    !strcmp(cnf->value, "move")) {
			if (!copy_email(ctx, gens, 1))
				goto err;
		} else {
			GENERAL_NAME *gen;
			if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
				goto err;
			if (sk_GENERAL_NAME_push(gens, gen) == 0) {
				GENERAL_NAME_free(gen);
				goto err;
			}
		}
	}
	return gens;

err:
	sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
	return NULL;
}

/* Copy any email addresses in a certificate or request to
 * GENERAL_NAMES
 */

static int
copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p)
{
	X509_NAME *nm;
	ASN1_IA5STRING *email = NULL;
	X509_NAME_ENTRY *ne;
	GENERAL_NAME *gen = NULL;
	int i;

	if (ctx != NULL && ctx->flags == CTX_TEST)
		return 1;
	if (!ctx || (!ctx->subject_cert && !ctx->subject_req)) {
		X509V3error(X509V3_R_NO_SUBJECT_DETAILS);
		goto err;
	}
	/* Find the subject name */
	if (ctx->subject_cert)
		nm = X509_get_subject_name(ctx->subject_cert);
	else
		nm = X509_REQ_get_subject_name(ctx->subject_req);

	/* Now add any email address(es) to STACK */
	i = -1;
	while ((i = X509_NAME_get_index_by_NID(nm,
	    NID_pkcs9_emailAddress, i)) >= 0) {
		ne = X509_NAME_get_entry(nm, i);
		email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne));
		if (move_p) {
			X509_NAME_delete_entry(nm, i);
			X509_NAME_ENTRY_free(ne);
			i--;
		}
		if (!email || !(gen = GENERAL_NAME_new())) {
			X509V3error(ERR_R_MALLOC_FAILURE);
			goto err;
		}
		gen->d.ia5 = email;
		email = NULL;
		gen->type = GEN_EMAIL;
		if (!sk_GENERAL_NAME_push(gens, gen)) {
			X509V3error(ERR_R_MALLOC_FAILURE);
			goto err;
		}
		gen = NULL;
	}

	return 1;

err:
	GENERAL_NAME_free(gen);
	ASN1_IA5STRING_free(email);
	return 0;
}

GENERAL_NAMES *
v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
    STACK_OF(CONF_VALUE) *nval)
{
	GENERAL_NAME *gen;
	GENERAL_NAMES *gens = NULL;
	CONF_VALUE *cnf;
	int i;

	if (!(gens = sk_GENERAL_NAME_new_null())) {
		X509V3error(ERR_R_MALLOC_FAILURE);
		return NULL;
	}
	for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
		cnf = sk_CONF_VALUE_value(nval, i);
		if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
			goto err;
		if (sk_GENERAL_NAME_push(gens, gen) == 0) {
			GENERAL_NAME_free(gen);
			goto err;
		}
	}
	return gens;

err:
	sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
	return NULL;
}

GENERAL_NAME *
v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
    CONF_VALUE *cnf)
{
	return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0);
}

GENERAL_NAME *
a2i_GENERAL_NAME(GENERAL_NAME *out, const X509V3_EXT_METHOD *method,
    X509V3_CTX *ctx, int gen_type, char *value, int is_nc)
{
	char is_string = 0;
	GENERAL_NAME *gen = NULL;

	if (!value) {
		X509V3error(X509V3_R_MISSING_VALUE);
		return NULL;
	}

	if (out)
		gen = out;
	else {
		gen = GENERAL_NAME_new();
		if (gen == NULL) {
			X509V3error(ERR_R_MALLOC_FAILURE);
			return NULL;
		}
	}

	switch (gen_type) {
	case GEN_URI:
	case GEN_EMAIL:
	case GEN_DNS:
		is_string = 1;
		break;

	case GEN_RID:
		{
			ASN1_OBJECT *obj;
			if (!(obj = OBJ_txt2obj(value, 0))) {
				X509V3error(X509V3_R_BAD_OBJECT);
				ERR_asprintf_error_data("value=%s", value);
				goto err;
			}
			gen->d.rid = obj;
		}
		break;

	case GEN_IPADD:
		if (is_nc)
			gen->d.ip = a2i_IPADDRESS_NC(value);
		else
			gen->d.ip = a2i_IPADDRESS(value);
		if (gen->d.ip == NULL) {
			X509V3error(X509V3_R_BAD_IP_ADDRESS);
			ERR_asprintf_error_data("value=%s", value);
			goto err;
		}
		break;

	case GEN_DIRNAME:
		if (!do_dirname(gen, value, ctx)) {
			X509V3error(X509V3_R_DIRNAME_ERROR);
			goto err;
		}
		break;

	case GEN_OTHERNAME:
		if (!do_othername(gen, value, ctx)) {
			X509V3error(X509V3_R_OTHERNAME_ERROR);
			goto err;
		}
		break;

	default:
		X509V3error(X509V3_R_UNSUPPORTED_TYPE);
		goto err;
	}

	if (is_string) {
		if (!(gen->d.ia5 = ASN1_IA5STRING_new()) ||
		    !ASN1_STRING_set(gen->d.ia5, (unsigned char*)value,
			strlen(value))) {
			X509V3error(ERR_R_MALLOC_FAILURE);
			goto err;
		}
	}

	gen->type = gen_type;

	return gen;

err:
	if (out == NULL)
		GENERAL_NAME_free(gen);
	return NULL;
}

GENERAL_NAME *
v2i_GENERAL_NAME_ex(GENERAL_NAME *out, const X509V3_EXT_METHOD *method,
    X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc)
{
	int type;
	char *name, *value;

	name = cnf->name;
	value = cnf->value;

	if (!value) {
		X509V3error(X509V3_R_MISSING_VALUE);
		return NULL;
	}

	if (!name_cmp(name, "email"))
		type = GEN_EMAIL;
	else if (!name_cmp(name, "URI"))
		type = GEN_URI;
	else if (!name_cmp(name, "DNS"))
		type = GEN_DNS;
	else if (!name_cmp(name, "RID"))
		type = GEN_RID;
	else if (!name_cmp(name, "IP"))
		type = GEN_IPADD;
	else if (!name_cmp(name, "dirName"))
		type = GEN_DIRNAME;
	else if (!name_cmp(name, "otherName"))
		type = GEN_OTHERNAME;
	else {
		X509V3error(X509V3_R_UNSUPPORTED_OPTION);
		ERR_asprintf_error_data("name=%s", name);
		return NULL;
	}

	return a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc);
}

static int
do_othername(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx)
{
	char *objtmp = NULL, *p;
	int objlen;

	if (!(p = strchr(value, ';')))
		return 0;
	if (!(gen->d.otherName = OTHERNAME_new()))
		return 0;
	/* Free this up because we will overwrite it.
	 * no need to free type_id because it is static
	 */
	ASN1_TYPE_free(gen->d.otherName->value);
	if (!(gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx)))
		return 0;
	objlen = p - value;
	objtmp = malloc(objlen + 1);
	if (objtmp) {
		strlcpy(objtmp, value, objlen + 1);
		gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0);
		free(objtmp);
	} else
		gen->d.otherName->type_id = NULL;
	if (!gen->d.otherName->type_id)
		return 0;
	return 1;
}

static int
do_dirname(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx)
{
	int ret;
	STACK_OF(CONF_VALUE) *sk;
	X509_NAME *nm;

	if (!(nm = X509_NAME_new()))
		return 0;
	sk = X509V3_get_section(ctx, value);
	if (!sk) {
		X509V3error(X509V3_R_SECTION_NOT_FOUND);
		ERR_asprintf_error_data("section=%s", value);
		X509_NAME_free(nm);
		return 0;
	}
	/* FIXME: should allow other character types... */
	ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC);
	if (!ret)
		X509_NAME_free(nm);
	gen->d.dirn = nm;
	X509V3_section_free(ctx, sk);

	return ret;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: v3_alt.c,v 1.27 2017/01/29 17:49:23 beck Exp $ */
2			/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3			* project.
4			*/
5			/* ====================================================================
6			* Copyright (c) 1999-2003 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			#include <stdio.h>
60			#include <string.h>
61
62			#include <openssl/conf.h>
63			#include <openssl/err.h>
64			#include <openssl/x509v3.h>
65
66			static GENERAL_NAMES v2i_subject_alt(X509V3_EXT_METHOD method,
67			X509V3_CTX ctx, STACK_OF(CONF_VALUE) nval);
68			static GENERAL_NAMES v2i_issuer_alt(X509V3_EXT_METHOD method,
69			X509V3_CTX ctx, STACK_OF(CONF_VALUE) nval);
70			static int copy_email(X509V3_CTX ctx, GENERAL_NAMES gens, int move_p);
71			static int copy_issuer(X509V3_CTX ctx, GENERAL_NAMES gens);
72			static int do_othername(GENERAL_NAME gen, char value, X509V3_CTX *ctx);
73			static int do_dirname(GENERAL_NAME gen, char value, X509V3_CTX *ctx);
74
75			const X509V3_EXT_METHOD v3_alt[] = {
76			{
77			.ext_nid = NID_subject_alt_name,
78			.ext_flags = 0,
79			.it = &GENERAL_NAMES_it,
80			.ext_new = NULL,
81			.ext_free = NULL,
82			.d2i = NULL,
83			.i2d = NULL,
84			.i2s = NULL,
85			.s2i = NULL,
86			.i2v = (X509V3_EXT_I2V)i2v_GENERAL_NAMES,
87			.v2i = (X509V3_EXT_V2I)v2i_subject_alt,
88			.i2r = NULL,
89			.r2i = NULL,
90			.usr_data = NULL,
91			},
92			{
93			.ext_nid = NID_issuer_alt_name,
94			.ext_flags = 0,
95			.it = &GENERAL_NAMES_it,
96			.ext_new = NULL,
97			.ext_free = NULL,
98			.d2i = NULL,
99			.i2d = NULL,
100			.i2s = NULL,
101			.s2i = NULL,
102			.i2v = (X509V3_EXT_I2V)i2v_GENERAL_NAMES,
103			.v2i = (X509V3_EXT_V2I)v2i_issuer_alt,
104			.i2r = NULL,
105			.r2i = NULL,
106			.usr_data = NULL,
107			},
108			{
109			.ext_nid = NID_certificate_issuer,
110			.ext_flags = 0,
111			.it = &GENERAL_NAMES_it,
112			.ext_new = NULL,
113			.ext_free = NULL,
114			.d2i = NULL,
115			.i2d = NULL,
116			.i2s = NULL,
117			.s2i = NULL,
118			.i2v = (X509V3_EXT_I2V)i2v_GENERAL_NAMES,
119			.v2i = NULL,
120			.i2r = NULL,
121			.r2i = NULL,
122			.usr_data = NULL,
123			},
124			};
125
126			STACK_OF(CONF_VALUE) *
127			i2v_GENERAL_NAMES(X509V3_EXT_METHOD method, GENERAL_NAMES gens,
128			STACK_OF(CONF_VALUE) *ret)
129			{
130			int i;
131			GENERAL_NAME *gen;
132
133			for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
134			gen = sk_GENERAL_NAME_value(gens, i);
135			ret = i2v_GENERAL_NAME(method, gen, ret);
136			}
137			if (!ret)
138			return sk_CONF_VALUE_new_null();
139			return ret;
140			}
141
142			STACK_OF(CONF_VALUE) *
143			i2v_GENERAL_NAME(X509V3_EXT_METHOD method, GENERAL_NAME gen,
144			STACK_OF(CONF_VALUE) *ret)
145			{
146			unsigned char *p;
147			char oline[256], htmp[5];
148			int i;
149
150			switch (gen->type) {
151			case GEN_OTHERNAME:
152			X509V3_add_value("othername", "<unsupported>", &ret);
153			break;
154
155			case GEN_X400:
156			X509V3_add_value("X400Name", "<unsupported>", &ret);
157			break;
158
159			case GEN_EDIPARTY:
160			X509V3_add_value("EdiPartyName", "<unsupported>", &ret);
161			break;
162
163			case GEN_EMAIL:
164			X509V3_add_value_uchar("email", gen->d.ia5->data, &ret);
165			break;
166
167			case GEN_DNS:
168			X509V3_add_value_uchar("DNS", gen->d.ia5->data, &ret);
169			break;
170
171			case GEN_URI:
172			X509V3_add_value_uchar("URI", gen->d.ia5->data, &ret);
173			break;
174
175			case GEN_DIRNAME:
176			X509_NAME_oneline(gen->d.dirn, oline, 256);
177			X509V3_add_value("DirName", oline, &ret);
178			break;
179
180			case GEN_IPADD:
181			p = gen->d.ip->data;
182			if (gen->d.ip->length == 4)
183			(void) snprintf(oline, sizeof oline,
184			"%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
185			else if (gen->d.ip->length == 16) {
186			oline[0] = 0;
187			for (i = 0; i < 8; i++) {
188			(void) snprintf(htmp, sizeof htmp,
189			"%X", p[0] << 8 \| p[1]);
190			p += 2;
191			strlcat(oline, htmp, sizeof(oline));
192			if (i != 7)
193			strlcat(oline, ":", sizeof(oline));
194			}
195			} else {
196			X509V3_add_value("IP Address", "<invalid>", &ret);
197			break;
198			}
199			X509V3_add_value("IP Address", oline, &ret);
200			break;
201
202			case GEN_RID:
203			i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
204			X509V3_add_value("Registered ID", oline, &ret);
205			break;
206			}
207			return ret;
208			}
209
210			int
211			GENERAL_NAME_print(BIO out, GENERAL_NAME gen)
212			{
213			unsigned char *p;
214			int i;
215
216			switch (gen->type) {
217			case GEN_OTHERNAME:
218			BIO_printf(out, "othername:<unsupported>");
219			break;
220
221			case GEN_X400:
222			BIO_printf(out, "X400Name:<unsupported>");
223			break;
224
225			case GEN_EDIPARTY:
226			/* Maybe fix this: it is supported now */
227			BIO_printf(out, "EdiPartyName:<unsupported>");
228			break;
229
230			case GEN_EMAIL:
231			BIO_printf(out, "email:%s", gen->d.ia5->data);
232			break;
233
234			case GEN_DNS:
235			BIO_printf(out, "DNS:%s", gen->d.ia5->data);
236			break;
237
238			case GEN_URI:
239			BIO_printf(out, "URI:%s", gen->d.ia5->data);
240			break;
241
242			case GEN_DIRNAME:
243			BIO_printf(out, "DirName: ");
244			X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE);
245			break;
246
247			case GEN_IPADD:
248			p = gen->d.ip->data;
249			if (gen->d.ip->length == 4)
250			BIO_printf(out, "IP Address:%d.%d.%d.%d",
251			p[0], p[1], p[2], p[3]);
252			else if (gen->d.ip->length == 16) {
253			BIO_printf(out, "IP Address");
254			for (i = 0; i < 8; i++) {
255			BIO_printf(out, ":%X", p[0] << 8 \| p[1]);
256			p += 2;
257			}
258			BIO_puts(out, "\n");
259			} else {
260			BIO_printf(out, "IP Address:<invalid>");
261			break;
262			}
263			break;
264
265			case GEN_RID:
266			BIO_printf(out, "Registered ID");
267			i2a_ASN1_OBJECT(out, gen->d.rid);
268			break;
269			}
270			return 1;
271			}
272
273			static GENERAL_NAMES *
274			v2i_issuer_alt(X509V3_EXT_METHOD method, X509V3_CTX ctx,
275			STACK_OF(CONF_VALUE) *nval)
276			{
277			GENERAL_NAMES *gens = NULL;
278			CONF_VALUE *cnf;
279			int i;
280
281			if ((gens = sk_GENERAL_NAME_new_null()) == NULL) {
282			X509V3error(ERR_R_MALLOC_FAILURE);
283			return NULL;
284			}
285			for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
286			cnf = sk_CONF_VALUE_value(nval, i);
287			if (name_cmp(cnf->name, "issuer") == 0 && cnf->value != NULL &&
288			strcmp(cnf->value, "copy") == 0) {
289			if (!copy_issuer(ctx, gens))
290			goto err;
291			} else {
292			GENERAL_NAME *gen;
293			if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
294			goto err;
295			if (sk_GENERAL_NAME_push(gens, gen) == 0) {
296			GENERAL_NAME_free(gen);
297			goto err;
298			}
299			}
300			}
301			return gens;
302
303			err:
304			sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
305			return NULL;
306			}
307
308			/* Append subject altname of issuer to issuer alt name of subject */
309
310			static int
311			copy_issuer(X509V3_CTX ctx, GENERAL_NAMES gens)
312			{
313			GENERAL_NAMES *ialt;
314			GENERAL_NAME *gen;
315			X509_EXTENSION *ext;
316			int i;
317
318			if (ctx && (ctx->flags == CTX_TEST))
319			return 1;
320			if (!ctx \|\| !ctx->issuer_cert) {
321			X509V3error(X509V3_R_NO_ISSUER_DETAILS);
322			goto err;
323			}
324			i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
325			if (i < 0)
326			return 1;
327			if (!(ext = X509_get_ext(ctx->issuer_cert, i)) \|\|
328			!(ialt = X509V3_EXT_d2i(ext))) {
329			X509V3error(X509V3_R_ISSUER_DECODE_ERROR);
330			goto err;
331			}
332
333			for (i = 0; i < sk_GENERAL_NAME_num(ialt); i++) {
334			gen = sk_GENERAL_NAME_value(ialt, i);
335			if (!sk_GENERAL_NAME_push(gens, gen)) {
336			X509V3error(ERR_R_MALLOC_FAILURE);
337			goto err;
338			}
339			}
340			sk_GENERAL_NAME_free(ialt);
341
342			return 1;
343
344			err:
345			return 0;
346
347			}
348
349			static GENERAL_NAMES *
350			v2i_subject_alt(X509V3_EXT_METHOD method, X509V3_CTX ctx,
351			STACK_OF(CONF_VALUE) *nval)
352			{
353			GENERAL_NAMES *gens = NULL;
354			CONF_VALUE *cnf;
355			int i;
356
357			if (!(gens = sk_GENERAL_NAME_new_null())) {
358			X509V3error(ERR_R_MALLOC_FAILURE);
359			return NULL;
360			}
361			for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
362			cnf = sk_CONF_VALUE_value(nval, i);
363			if (!name_cmp(cnf->name, "email") && cnf->value &&
364			!strcmp(cnf->value, "copy")) {
365			if (!copy_email(ctx, gens, 0))
366			goto err;
367			} else if (!name_cmp(cnf->name, "email") && cnf->value &&
368			!strcmp(cnf->value, "move")) {
369			if (!copy_email(ctx, gens, 1))
370			goto err;
371			} else {
372			GENERAL_NAME *gen;
373			if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
374			goto err;
375			if (sk_GENERAL_NAME_push(gens, gen) == 0) {
376			GENERAL_NAME_free(gen);
377			goto err;
378			}
379			}
380			}
381			return gens;
382
383			err:
384			sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
385			return NULL;
386			}
387
388			/* Copy any email addresses in a certificate or request to
389			* GENERAL_NAMES
390			*/
391
392			static int
393			copy_email(X509V3_CTX ctx, GENERAL_NAMES gens, int move_p)
394			{
395			X509_NAME *nm;
396			ASN1_IA5STRING *email = NULL;
397			X509_NAME_ENTRY *ne;
398			GENERAL_NAME *gen = NULL;
399			int i;
400
401			if (ctx != NULL && ctx->flags == CTX_TEST)
402			return 1;
403			if (!ctx \|\| (!ctx->subject_cert && !ctx->subject_req)) {
404			X509V3error(X509V3_R_NO_SUBJECT_DETAILS);
405			goto err;
406			}
407			/* Find the subject name */
408			if (ctx->subject_cert)
409			nm = X509_get_subject_name(ctx->subject_cert);
410			else
411			nm = X509_REQ_get_subject_name(ctx->subject_req);
412
413			/* Now add any email address(es) to STACK */
414			i = -1;
415			while ((i = X509_NAME_get_index_by_NID(nm,
416			NID_pkcs9_emailAddress, i)) >= 0) {
417			ne = X509_NAME_get_entry(nm, i);
418			email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne));
419			if (move_p) {
420			X509_NAME_delete_entry(nm, i);
421			X509_NAME_ENTRY_free(ne);
422			i--;
423			}
424			if (!email \|\| !(gen = GENERAL_NAME_new())) {
425			X509V3error(ERR_R_MALLOC_FAILURE);
426			goto err;
427			}
428			gen->d.ia5 = email;
429			email = NULL;
430			gen->type = GEN_EMAIL;
431			if (!sk_GENERAL_NAME_push(gens, gen)) {
432			X509V3error(ERR_R_MALLOC_FAILURE);
433			goto err;
434			}
435			gen = NULL;
436			}
437
438			return 1;
439
440			err:
441			GENERAL_NAME_free(gen);
442			ASN1_IA5STRING_free(email);
443			return 0;
444			}
445
446			GENERAL_NAMES *
447			v2i_GENERAL_NAMES(const X509V3_EXT_METHOD method, X509V3_CTX ctx,
448			STACK_OF(CONF_VALUE) *nval)
449			{
450			GENERAL_NAME *gen;
451			GENERAL_NAMES *gens = NULL;
452			CONF_VALUE *cnf;
453			int i;
454
455			if (!(gens = sk_GENERAL_NAME_new_null())) {
456			X509V3error(ERR_R_MALLOC_FAILURE);
457			return NULL;
458			}
459			for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
460			cnf = sk_CONF_VALUE_value(nval, i);
461			if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
462			goto err;
463			if (sk_GENERAL_NAME_push(gens, gen) == 0) {
464			GENERAL_NAME_free(gen);
465			goto err;
466			}
467			}
468			return gens;
469
470			err:
471			sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
472			return NULL;
473			}
474
475			GENERAL_NAME *
476			v2i_GENERAL_NAME(const X509V3_EXT_METHOD method, X509V3_CTX ctx,
477			CONF_VALUE *cnf)
478			{
479			return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0);
480			}
481
482			GENERAL_NAME *
483			a2i_GENERAL_NAME(GENERAL_NAME out, const X509V3_EXT_METHOD method,
484			X509V3_CTX ctx, int gen_type, char value, int is_nc)
485			{
486			char is_string = 0;
487			GENERAL_NAME *gen = NULL;
488
489			if (!value) {
490			X509V3error(X509V3_R_MISSING_VALUE);
491			return NULL;
492			}
493
494			if (out)
495			gen = out;
496			else {
497			gen = GENERAL_NAME_new();
498			if (gen == NULL) {
499			X509V3error(ERR_R_MALLOC_FAILURE);
500			return NULL;
501			}
502			}
503
504			switch (gen_type) {
505			case GEN_URI:
506			case GEN_EMAIL:
507			case GEN_DNS:
508			is_string = 1;
509			break;
510
511			case GEN_RID:
512			{
513			ASN1_OBJECT *obj;
514			if (!(obj = OBJ_txt2obj(value, 0))) {
515			X509V3error(X509V3_R_BAD_OBJECT);
516			ERR_asprintf_error_data("value=%s", value);
517			goto err;
518			}
519			gen->d.rid = obj;
520			}
521			break;
522
523			case GEN_IPADD:
524			if (is_nc)
525			gen->d.ip = a2i_IPADDRESS_NC(value);
526			else
527			gen->d.ip = a2i_IPADDRESS(value);
528			if (gen->d.ip == NULL) {
529			X509V3error(X509V3_R_BAD_IP_ADDRESS);
530			ERR_asprintf_error_data("value=%s", value);
531			goto err;
532			}
533			break;
534
535			case GEN_DIRNAME:
536			if (!do_dirname(gen, value, ctx)) {
537			X509V3error(X509V3_R_DIRNAME_ERROR);
538			goto err;
539			}
540			break;
541
542			case GEN_OTHERNAME:
543			if (!do_othername(gen, value, ctx)) {
544			X509V3error(X509V3_R_OTHERNAME_ERROR);
545			goto err;
546			}
547			break;
548
549			default:
550			X509V3error(X509V3_R_UNSUPPORTED_TYPE);
551			goto err;
552			}
553
554			if (is_string) {
555			if (!(gen->d.ia5 = ASN1_IA5STRING_new()) \|\|
556			!ASN1_STRING_set(gen->d.ia5, (unsigned char*)value,
557			strlen(value))) {
558			X509V3error(ERR_R_MALLOC_FAILURE);
559			goto err;
560			}
561			}
562
563			gen->type = gen_type;
564
565			return gen;
566
567			err:
568			if (out == NULL)
569			GENERAL_NAME_free(gen);
570			return NULL;
571			}
572
573			GENERAL_NAME *
574			v2i_GENERAL_NAME_ex(GENERAL_NAME out, const X509V3_EXT_METHOD method,
575			X509V3_CTX ctx, CONF_VALUE cnf, int is_nc)
576			{
577			int type;
578			char name, value;
579
580			name = cnf->name;
581			value = cnf->value;
582
583			if (!value) {
584			X509V3error(X509V3_R_MISSING_VALUE);
585			return NULL;
586			}
587
588			if (!name_cmp(name, "email"))
589			type = GEN_EMAIL;
590			else if (!name_cmp(name, "URI"))
591			type = GEN_URI;
592			else if (!name_cmp(name, "DNS"))
593			type = GEN_DNS;
594			else if (!name_cmp(name, "RID"))
595			type = GEN_RID;
596			else if (!name_cmp(name, "IP"))
597			type = GEN_IPADD;
598			else if (!name_cmp(name, "dirName"))
599			type = GEN_DIRNAME;
600			else if (!name_cmp(name, "otherName"))
601			type = GEN_OTHERNAME;
602			else {
603			X509V3error(X509V3_R_UNSUPPORTED_OPTION);
604			ERR_asprintf_error_data("name=%s", name);
605			return NULL;
606			}
607
608			return a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc);
609			}
610
611			static int
612			do_othername(GENERAL_NAME gen, char value, X509V3_CTX *ctx)
613			{
614			char objtmp = NULL, p;
615			int objlen;
616
617			if (!(p = strchr(value, ';')))
618			return 0;
619			if (!(gen->d.otherName = OTHERNAME_new()))
620			return 0;
621			/* Free this up because we will overwrite it.
622			* no need to free type_id because it is static
623			*/
624			ASN1_TYPE_free(gen->d.otherName->value);
625			if (!(gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx)))
626			return 0;
627			objlen = p - value;
628			objtmp = malloc(objlen + 1);
629			if (objtmp) {
630			strlcpy(objtmp, value, objlen + 1);
631			gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0);
632			free(objtmp);
633			} else
634			gen->d.otherName->type_id = NULL;
635			if (!gen->d.otherName->type_id)
636			return 0;
637			return 1;
638			}
639
640			static int
641			do_dirname(GENERAL_NAME gen, char value, X509V3_CTX *ctx)
642			{
643			int ret;
644			STACK_OF(CONF_VALUE) *sk;
645			X509_NAME *nm;
646
647			if (!(nm = X509_NAME_new()))
648			return 0;
649			sk = X509V3_get_section(ctx, value);
650			if (!sk) {
651			X509V3error(X509V3_R_SECTION_NOT_FOUND);
652			ERR_asprintf_error_data("section=%s", value);
653			X509_NAME_free(nm);
654			return 0;
655			}
656			/* FIXME: should allow other character types... */
657			ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC);
658			if (!ret)
659			X509_NAME_free(nm);
660			gen->d.dirn = nm;
661			X509V3_section_free(ctx, sk);
662
663			return ret;
664			}