Commit d7d5a55d authored by Dr. Stephen Henson's avatar Dr. Stephen Henson
Browse files

Support routines for ASN1 scanning function, doesn't do much yet.

parent cc4c2306
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+2 −2
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@@ -25,7 +25,7 @@ LIBSRC= a_object.c a_bitstr.c a_utctm.c a_gentm.c a_time.c a_int.c a_octet.c \
	x_nx509.c d2i_pu.c d2i_pr.c i2d_pu.c i2d_pr.c\
	t_req.c t_x509.c t_x509a.c t_crl.c t_pkey.c t_spki.c t_bitst.c \
	tasn_new.c tasn_fre.c tasn_enc.c tasn_dec.c tasn_utl.c tasn_typ.c \
	tasn_prn.c ameth_lib.c \
	tasn_prn.c tasn_scn.c ameth_lib.c \
	f_int.c f_string.c n_pkey.c \
	f_enum.c x_pkey.c a_bool.c x_exten.c bio_asn1.c bio_ndef.c asn_mime.c \
	asn1_gen.c asn1_par.c asn1_lib.c asn1_err.c a_bytes.c a_strnid.c \
@@ -38,7 +38,7 @@ LIBOBJ= a_object.o a_bitstr.o a_utctm.o a_gentm.o a_time.o a_int.o a_octet.o \
	x_nx509.o d2i_pu.o d2i_pr.o i2d_pu.o i2d_pr.o \
	t_req.o t_x509.o t_x509a.o t_crl.o t_pkey.o t_spki.o t_bitst.o \
	tasn_new.o tasn_fre.o tasn_enc.o tasn_dec.o tasn_utl.o tasn_typ.o \
	tasn_prn.o ameth_lib.o \
	tasn_prn.o tasn_scn.o ameth_lib.o \
	f_int.o f_string.o n_pkey.o \
	f_enum.o x_pkey.o a_bool.o x_exten.o bio_asn1.o bio_ndef.o asn_mime.o \
	asn1_gen.o asn1_par.o asn1_lib.o asn1_err.o a_bytes.o a_strnid.o \
+1 −1
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@@ -60,7 +60,6 @@
#include <time.h>

#include "cryptlib.h"
#include "asn1_locl.h"

#ifndef NO_SYS_TYPES_H
# include <sys/types.h>
@@ -71,6 +70,7 @@
#include <openssl/objects.h>
#include <openssl/buffer.h>
#include <openssl/evp.h>
#include "asn1_locl.h"

#ifndef NO_ASN1_OLD

+8 −0
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@@ -1130,6 +1130,14 @@ void ASN1_PCTX_set_oid_flags(ASN1_PCTX *p, unsigned long flags);
unsigned long ASN1_PCTX_get_str_flags(ASN1_PCTX *p);
void ASN1_PCTX_set_str_flags(ASN1_PCTX *p, unsigned long flags);

ASN1_SCTX *ASN1_SCTX_new(int (*scan_cb)(ASN1_SCTX *ctx));
void ASN1_SCTX_free(ASN1_SCTX *p);
const ASN1_ITEM *ASN1_SCTX_get_item(ASN1_SCTX *p);
const ASN1_TEMPLATE * ASN1_SCTX_get_template(ASN1_SCTX *p);
unsigned long ASN1_SCTX_get_flags(ASN1_SCTX *p);
void ASN1_SCTX_set_app_data(ASN1_SCTX *p, void *data);
void *ASN1_SCTX_get_app_data(ASN1_SCTX *p);

BIO_METHOD *BIO_f_asn1(void);

BIO *BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it);
+26 −0
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@@ -69,6 +69,32 @@ struct asn1_pctx_st
	unsigned long str_flags;
	} /* ASN1_PCTX */;

/* ASN1 scan context structure */

struct asn1_sctx_st
	{
	/* The ASN1_ITEM associated with this field */
	const ASN1_ITEM *it;
	/* If ASN1_TEMPLATE associated with this field */
	const ASN1_TEMPLATE *tt;
	/* Various flags associated with field and context */
	unsigned long flags;
	/* If SEQUENCE OF or SET OF, field index */
	int skidx;
	/* ASN1 depth of field */
	int depth;
	/* Structure and field name */
	const char *sname, *fname;
	/* If a primitive type the type of underlying field */
	int prim_type;
	/* The field value itself */
	ASN1_VALUE **field;
	/* Callback to pass information to */
	int (*scan_cb)(ASN1_SCTX *ctx);
	/* Context specific application data */
	void *app_data;
	} /* ASN1_SCTX */;

/* ASN1 public key method structure */

struct evp_pkey_asn1_method_st

crypto/asn1/tasn_scn.c

0 → 100644
+117 −0
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/* tasn_scn.c */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
 * project 2010.
 */
/* ====================================================================
 * Copyright (c) 2010 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 <stddef.h>
#include "cryptlib.h"
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/objects.h>
#include <openssl/buffer.h>
#include <openssl/err.h>
#include <openssl/x509v3.h>
#include "asn1_locl.h"

/* General ASN1 structure recursive scanner: iterate through all
 * fields passing details to a callback.
 */

ASN1_SCTX *ASN1_SCTX_new(int (*scan_cb)(ASN1_SCTX *ctx))
	{
	ASN1_SCTX *ret;
	ret = OPENSSL_malloc(sizeof(ASN1_SCTX));
	if (ret == NULL)
		{
		ASN1err(ASN1_F_ASN1_PCTX_NEW, ERR_R_MALLOC_FAILURE);
		return NULL;
		}
	ret->scan_cb = scan_cb;
	return ret;
	}

void ASN1_SCTX_free(ASN1_SCTX *p)
	{
	OPENSSL_free(p);
	}

const ASN1_ITEM *ASN1_SCTX_get_item(ASN1_SCTX *p)
	{
	return p->it;
	}

const ASN1_TEMPLATE * ASN1_SCTX_get_template(ASN1_SCTX *p)
	{
	return p->tt;
	}

unsigned long ASN1_SCTX_get_flags(ASN1_SCTX *p)
	{
	return p->flags;
	}

void ASN1_SCTX_set_app_data(ASN1_SCTX *p, void *data)
	{
	p->app_data = data;
	}

void *ASN1_SCTX_get_app_data(ASN1_SCTX *p)
	{
	return p->app_data;
	}

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