/* v3_crld.c */
/*
 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
 * 1999.
 */
/* ====================================================================
 * Copyright (c) 1999 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/conf.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/x509v3.h>

static STACK_OF(CONF_VALUE) *i2v_crld(X509V3_EXT_METHOD *method,
                                      STACK_OF(DIST_POINT) *crld,
                                      STACK_OF(CONF_VALUE) *extlist);
static STACK_OF(DIST_POINT) *v2i_crld(X509V3_EXT_METHOD *method,
                                      X509V3_CTX *ctx,
                                      STACK_OF(CONF_VALUE) *nval);

const X509V3_EXT_METHOD v3_crld = {
    NID_crl_distribution_points, X509V3_EXT_MULTILINE,
    ASN1_ITEM_ref(CRL_DIST_POINTS),
    0, 0, 0, 0,
    0, 0,
    (X509V3_EXT_I2V) i2v_crld,
    (X509V3_EXT_V2I)v2i_crld,
    0, 0,
    NULL
};

static STACK_OF(CONF_VALUE) *i2v_crld(X509V3_EXT_METHOD *method,
                                      STACK_OF(DIST_POINT) *crld,
                                      STACK_OF(CONF_VALUE) *exts)
{
    DIST_POINT *point;
    int i;
    for (i = 0; i < sk_DIST_POINT_num(crld); i++) {
        point = sk_DIST_POINT_value(crld, i);
        if (point->distpoint) {
            if (point->distpoint->type == 0)
                exts = i2v_GENERAL_NAMES(NULL,
                                         point->distpoint->name.fullname,
                                         exts);
            else
                X509V3_add_value("RelativeName", "<UNSUPPORTED>", &exts);
        }
        if (point->reasons)
            X509V3_add_value("reasons", "<UNSUPPORTED>", &exts);
        if (point->CRLissuer)
            X509V3_add_value("CRLissuer", "<UNSUPPORTED>", &exts);
    }
    return exts;
}

static STACK_OF(DIST_POINT) *v2i_crld(X509V3_EXT_METHOD *method,
                                      X509V3_CTX *ctx,
                                      STACK_OF(CONF_VALUE) *nval)
{
    STACK_OF(DIST_POINT) *crld = NULL;
    GENERAL_NAMES *gens = NULL;
    GENERAL_NAME *gen = NULL;
    CONF_VALUE *cnf;
    int i;
    if (!(crld = sk_DIST_POINT_new_null()))
        goto merr;
    for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
        DIST_POINT *point;
        cnf = sk_CONF_VALUE_value(nval, i);
        if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
            goto err;
        if (!(gens = GENERAL_NAMES_new()))
            goto merr;
        if (!sk_GENERAL_NAME_push(gens, gen))
            goto merr;
        gen = NULL;
        if (!(point = DIST_POINT_new()))
            goto merr;
        if (!sk_DIST_POINT_push(crld, point)) {
            DIST_POINT_free(point);
            goto merr;
        }
        if (!(point->distpoint = DIST_POINT_NAME_new()))
            goto merr;
        point->distpoint->name.fullname = gens;
        point->distpoint->type = 0;
        gens = NULL;
    }
    return crld;

 merr:
    X509V3err(X509V3_F_V2I_CRLD, ERR_R_MALLOC_FAILURE);
 err:
    GENERAL_NAME_free(gen);
    GENERAL_NAMES_free(gens);
    sk_DIST_POINT_pop_free(crld, DIST_POINT_free);
    return NULL;
}

IMPLEMENT_STACK_OF(DIST_POINT)

IMPLEMENT_ASN1_SET_OF(DIST_POINT)


ASN1_CHOICE(DIST_POINT_NAME) = {
        ASN1_IMP_SEQUENCE_OF(DIST_POINT_NAME, name.fullname, GENERAL_NAME, 0),
        ASN1_IMP_SET_OF(DIST_POINT_NAME, name.relativename, X509_NAME_ENTRY, 1)
} ASN1_CHOICE_END(DIST_POINT_NAME)

IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT_NAME)

ASN1_SEQUENCE(DIST_POINT) = {
        ASN1_EXP_OPT(DIST_POINT, distpoint, DIST_POINT_NAME, 0),
        ASN1_IMP_OPT(DIST_POINT, reasons, ASN1_BIT_STRING, 1),
        ASN1_IMP_SEQUENCE_OF_OPT(DIST_POINT, CRLissuer, GENERAL_NAME, 2)
} ASN1_SEQUENCE_END(DIST_POINT)

IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT)

ASN1_ITEM_TEMPLATE(CRL_DIST_POINTS) =
        ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CRLDistributionPoints, DIST_POINT)
ASN1_ITEM_TEMPLATE_END(CRL_DIST_POINTS)

IMPLEMENT_ASN1_FUNCTIONS(CRL_DIST_POINTS)