/*
 * Copyright (C) 2006  American Registry for Internet Numbers ("ARIN")
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND ARIN DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS.  IN NO EVENT SHALL ARIN BE LIABLE FOR ANY SPECIAL, DIRECT,
 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

/* $Id$ */

/*
 * Initial attempt to implement RFC 3779 section 2.  I'd be very
 * surprised if this even compiled yet, as I'm still figuring out
 * OpenSSL's ASN.1 template goop.
 */

#include <stdio.h>
#include <assert.h>
#include "cryptlib.h"
#include <openssl/conf.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/x509v3.h>

ASN1_SEQUENCE(IPAddressRange) = {
  ASN1_SIMPLE(IPAddressRange, min, ASN1_BIT_STRING),
  ASN1_SIMPLE(IPAddressRange, max, ASN1_BIT_STRING)
} ASN1_SEQUENCE_END(IPAddressRange)

ASN1_CHOICE(IPAddressOrRange) = {
  ASN1_SIMPLE(IPAddressOrRange, u.addressPrefix, ASN1_BIT_STRING),
  ASN1_SIMPLE(IPAddressOrRange, u.addressRange,  IPAddressRange)
} ASN1_CHOICE_END(IPAddressOrRange)

ASN1_CHOICE(IPAddressChoice) = {
  ASN1_SIMPLE(IPAddressChoice,      u.inherit,           ASN1_NULL),
  ASN1_SEQUENCE_OF(IPAddressChoice, u.addressesOrRanges, IPAddressOrRange)
} ASN1_CHOICE_END(IPAddressChoice)

ASN1_SEQUENCE(IPAddressFamily) = {
  ASN1_SIMPLE(IPAddressFamily,      addressFamily,   ASN1_OCTET_STRING),
  ASN1_SEQUENCE_OF(IPAddressFamily, ipAddressChoice, IPAddressChoice)
} ASN1_SEQUENCE_END(IPAddressFamily)

ASN1_ITEM_TEMPLATE(IPAddrBlocks) = 
  ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, IPAddrBlocks, IPAddressFamily)
ASN1_ITEM_TEMPLATE_END(IPAddrBlocks)

IMPLEMENT_ASN1_FUNCTIONS(IPAddressRange)
IMPLEMENT_ASN1_FUNCTIONS(IPAddressOrRange)
IMPLEMENT_ASN1_FUNCTIONS(IPAddressChoice)
IMPLEMENT_ASN1_FUNCTIONS(IPAddressFamily)
IMPLEMENT_ASN1_FUNCTIONS(IPAddrBlocks)

X509V3_EXT_METHOD v3_addr = {
  NID_IPAddrBlocks,		/* nid */
  0,				/* flags */
  ASN1_ITEM_ref(IPAddrBlocks),	/* template */
  0, 0, 0, 0,			/* old functions, ignored */
  0,				/* i2s */
  0,				/* s2i */
  0,				/* i2v */
  v2i_IPAddrBlocks,		/* v2i */
  i2r_IPAddrBlocks,		/* i2r */
  0,				/* r2i */
  NULL				/* extension-specific data */
};