/* $OpenBSD: x509_info.c,v 1.1 2020/06/04 15:19:31 jsing Exp $ */

/* 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 <string.h>

#include <openssl/asn1.h>

#include <openssl/asn1t.h>

#include <openssl/conf.h>

#include <openssl/err.h>

#include <openssl/x509v3.h>

static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(

    X509V3_EXT_METHOD *method, AUTHORITY_INFO_ACCESS *ainfo,

    STACK_OF(CONF_VALUE) *ret);

static AUTHORITY_INFO_ACCESS *v2i_AUTHORITY_INFO_ACCESS(

    X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);

const X509V3_EXT_METHOD v3_info = {

  .ext_nid = NID_info_access,

  .ext_flags = X509V3_EXT_MULTILINE,

  .it = &AUTHORITY_INFO_ACCESS_it,

  .ext_new = NULL,

  .ext_free = NULL,

  .d2i = NULL,

  .i2d = NULL,

  .i2s = NULL,

  .s2i = NULL,

  .i2v = (X509V3_EXT_I2V)i2v_AUTHORITY_INFO_ACCESS,

  .v2i = (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,

  .i2r = NULL,

  .r2i = NULL,

  .usr_data = NULL,

};

const X509V3_EXT_METHOD v3_sinfo = {

  .ext_nid = NID_sinfo_access,

  .ext_flags = X509V3_EXT_MULTILINE,

  .it = &AUTHORITY_INFO_ACCESS_it,

  .ext_new = NULL,

  .ext_free = NULL,

  .d2i = NULL,

  .i2d = NULL,

  .i2s = NULL,

  .s2i = NULL,

  .i2v = (X509V3_EXT_I2V)i2v_AUTHORITY_INFO_ACCESS,

  .v2i = (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,

  .i2r = NULL,

  .r2i = NULL,

  .usr_data = NULL,

};

static const ASN1_TEMPLATE ACCESS_DESCRIPTION_seq_tt[] = {

  {

    .flags = 0,

    .tag = 0,

    .offset = offsetof(ACCESS_DESCRIPTION, method),

    .field_name = "method",

    .item = &ASN1_OBJECT_it,

  },

  {

    .flags = 0,

    .tag = 0,

    .offset = offsetof(ACCESS_DESCRIPTION, location),

    .field_name = "location",

    .item = &GENERAL_NAME_it,

  },

};

const ASN1_ITEM ACCESS_DESCRIPTION_it = {

  .itype = ASN1_ITYPE_SEQUENCE,

  .utype = V_ASN1_SEQUENCE,

  .templates = ACCESS_DESCRIPTION_seq_tt,

  .tcount = sizeof(ACCESS_DESCRIPTION_seq_tt) / sizeof(ASN1_TEMPLATE),

  .funcs = NULL,

  .size = sizeof(ACCESS_DESCRIPTION),

  .sname = "ACCESS_DESCRIPTION",

};

ACCESS_DESCRIPTION *

d2i_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION **a, const unsigned char **in, long len)

{

  return (ACCESS_DESCRIPTION *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,

      &ACCESS_DESCRIPTION_it);

}

int

i2d_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION *a, unsigned char **out)

{

  return ASN1_item_i2d((ASN1_VALUE *)a, out, &ACCESS_DESCRIPTION_it);

}

ACCESS_DESCRIPTION *

ACCESS_DESCRIPTION_new(void)

{

  return (ACCESS_DESCRIPTION *)ASN1_item_new(&ACCESS_DESCRIPTION_it);

}

void

ACCESS_DESCRIPTION_free(ACCESS_DESCRIPTION *a)

{

  ASN1_item_free((ASN1_VALUE *)a, &ACCESS_DESCRIPTION_it);

}

static const ASN1_TEMPLATE AUTHORITY_INFO_ACCESS_item_tt = {

  .flags = ASN1_TFLG_SEQUENCE_OF,

  .tag = 0,

  .offset = 0,

  .field_name = "GeneralNames",

  .item = &ACCESS_DESCRIPTION_it,

};

const ASN1_ITEM AUTHORITY_INFO_ACCESS_it = {

  .itype = ASN1_ITYPE_PRIMITIVE,

  .utype = -1,

  .templates = &AUTHORITY_INFO_ACCESS_item_tt,

  .tcount = 0,

  .funcs = NULL,

  .size = 0,

  .sname = "AUTHORITY_INFO_ACCESS",

};

AUTHORITY_INFO_ACCESS *

d2i_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS **a, const unsigned char **in, long len)

{

  return (AUTHORITY_INFO_ACCESS *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,

      &AUTHORITY_INFO_ACCESS_it);

}

int

i2d_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS *a, unsigned char **out)

{

  return ASN1_item_i2d((ASN1_VALUE *)a, out, &AUTHORITY_INFO_ACCESS_it);

}

AUTHORITY_INFO_ACCESS *

AUTHORITY_INFO_ACCESS_new(void)

{

  return (AUTHORITY_INFO_ACCESS *)ASN1_item_new(&AUTHORITY_INFO_ACCESS_it);

}

void

AUTHORITY_INFO_ACCESS_free(AUTHORITY_INFO_ACCESS *a)

{

  ASN1_item_free((ASN1_VALUE *)a, &AUTHORITY_INFO_ACCESS_it);

}

static STACK_OF(CONF_VALUE) *

i2v_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD *method,

    AUTHORITY_INFO_ACCESS *ainfo, STACK_OF(CONF_VALUE) *ret)

{

  ACCESS_DESCRIPTION *desc;

  CONF_VALUE *vtmp;

  STACK_OF(CONF_VALUE) *free_ret = NULL;

  char objtmp[80], *ntmp;

  int i;

  if (ret == NULL) {

    if ((free_ret = ret = sk_CONF_VALUE_new_null()) == NULL)

      return NULL;

  }

  for (i = 0; i < sk_ACCESS_DESCRIPTION_num(ainfo); i++) {

    if ((desc = sk_ACCESS_DESCRIPTION_value(ainfo, i)) == NULL)

      goto err;

    if ((ret = i2v_GENERAL_NAME(method, desc->location,

        ret)) == NULL)

      goto err;

    if ((vtmp = sk_CONF_VALUE_value(ret, i)) == NULL)

      goto err;

    if (!i2t_ASN1_OBJECT(objtmp, sizeof objtmp, desc->method))

      goto err;

    if (asprintf(&ntmp, "%s - %s", objtmp, vtmp->name) == -1) {

      ntmp = NULL;

      X509V3error(ERR_R_MALLOC_FAILURE);

      goto err;

    }

    free(vtmp->name);

    vtmp->name = ntmp;

  }

  return ret;

 err:

  sk_CONF_VALUE_pop_free(free_ret, X509V3_conf_free);

  return NULL;

}

static AUTHORITY_INFO_ACCESS *

v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,

    STACK_OF(CONF_VALUE) *nval)

{

  AUTHORITY_INFO_ACCESS *ainfo = NULL;

  CONF_VALUE *cnf, ctmp;

  ACCESS_DESCRIPTION *acc;

  int i, objlen;

  char *objtmp, *ptmp;

  if (!(ainfo = sk_ACCESS_DESCRIPTION_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 ((acc = ACCESS_DESCRIPTION_new()) == NULL) {

      X509V3error(ERR_R_MALLOC_FAILURE);

      goto err;

    }

    if (sk_ACCESS_DESCRIPTION_push(ainfo, acc) == 0) {

      ACCESS_DESCRIPTION_free(acc);

      X509V3error(ERR_R_MALLOC_FAILURE);

      goto err;

    }

    ptmp = strchr(cnf->name, ';');

    if (!ptmp) {

      X509V3error(X509V3_R_INVALID_SYNTAX);

      goto err;

    }

    objlen = ptmp - cnf->name;

    ctmp.name = ptmp + 1;

    ctmp.value = cnf->value;

    if (!v2i_GENERAL_NAME_ex(acc->location, method, ctx, &ctmp, 0))

      goto err;

    if (!(objtmp = malloc(objlen + 1))) {

      X509V3error(ERR_R_MALLOC_FAILURE);

      goto err;

    }

    strlcpy(objtmp, cnf->name, objlen + 1);

    acc->method = OBJ_txt2obj(objtmp, 0);

    if (!acc->method) {

      X509V3error(X509V3_R_BAD_OBJECT);

      ERR_asprintf_error_data("value=%s", objtmp);

      free(objtmp);

      goto err;

    }

    free(objtmp);

  }

  return ainfo;

err:

  sk_ACCESS_DESCRIPTION_pop_free(ainfo, ACCESS_DESCRIPTION_free);

  return NULL;

}

int

i2a_ACCESS_DESCRIPTION(BIO *bp, const ACCESS_DESCRIPTION* a)

{

  i2a_ASN1_OBJECT(bp, a->method);

  return 2;

}