/* asn1t.h */

 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL

  * project 2000.

  */

 /* ====================================================================

  * Copyright (c) 2000 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).

  *

  */

 #ifndef HEADER_ASN1T_H

 #define HEADER_ASN1T_H

 #include <stddef.h>

 #include <openssl/e_os2.h>

 #include <openssl/asn1.h>

 #ifdef OPENSSL_BUILD_SHLIBCRYPTO

 # undef OPENSSL_EXTERN

 # define OPENSSL_EXTERN OPENSSL_EXPORT

 #endif

 /* ASN1 template defines, structures and functions */

 #ifdef  __cplusplus

 extern "C" {

 #endif

 #ifndef OPENSSL_EXPORT_VAR_AS_FUNCTION

 /* Macro to obtain ASN1_ADB pointer from a type (only used internally) */

 #define ASN1_ADB_ptr(iptr) ((const ASN1_ADB *)(iptr))

 /* Macros for start and end of ASN1_ITEM definition */

 #define ASN1_ITEM_start(itname) \

 	OPENSSL_GLOBAL const ASN1_ITEM itname##_it = {

 #define ASN1_ITEM_end(itname) \

 		};

 #else

 /* Macro to obtain ASN1_ADB pointer from a type (only used internally) */

 #define ASN1_ADB_ptr(iptr) ((const ASN1_ADB *)(iptr()))

 /* Macros for start and end of ASN1_ITEM definition */

 #define ASN1_ITEM_start(itname) \

 	EXPORT_C const ASN1_ITEM * itname##_it(void) \

 	{ \

 		static const ASN1_ITEM local_it = { 

 #define ASN1_ITEM_end(itname) \

 		}; \

 	return &local_it; \

 	}

 #endif

 /* Macros to aid ASN1 template writing */

 #define ASN1_ITEM_TEMPLATE(tname) \

 	static const ASN1_TEMPLATE tname##_item_tt 

 #define ASN1_ITEM_TEMPLATE_END(tname) \

 	;\

 	ASN1_ITEM_start(tname) \

 		ASN1_ITYPE_PRIMITIVE,\

 		-1,\

 		&tname##_item_tt,\

 		0,\

 		NULL,\

 		0,\

 		#tname \

 	ASN1_ITEM_end(tname)

 /* This is a ASN1 type which just embeds a template */

 /* This pair helps declare a SEQUENCE. We can do:

  *

  * 	ASN1_SEQUENCE(stname) = {

  * 		... SEQUENCE components ...

  * 	} ASN1_SEQUENCE_END(stname)

  *

  * 	This will produce an ASN1_ITEM called stname_it

  *	for a structure called stname.

  *

  * 	If you want the same structure but a different

  *	name then use:

  *

  * 	ASN1_SEQUENCE(itname) = {

  * 		... SEQUENCE components ...

  * 	} ASN1_SEQUENCE_END_name(stname, itname)

  *

  *	This will create an item called itname_it using

  *	a structure called stname.

  */

 #define ASN1_SEQUENCE(tname) \

 	static const ASN1_TEMPLATE tname##_seq_tt[] 

 #define ASN1_SEQUENCE_END(stname) ASN1_SEQUENCE_END_name(stname, stname)

 #define ASN1_SEQUENCE_END_name(stname, tname) \

 	;\

 	ASN1_ITEM_start(tname) \

 		ASN1_ITYPE_SEQUENCE,\

 		V_ASN1_SEQUENCE,\

 		tname##_seq_tt,\

 		sizeof(tname##_seq_tt) / sizeof(ASN1_TEMPLATE),\

 		NULL,\

 		sizeof(stname),\

 		#stname \

 	ASN1_ITEM_end(tname)

 #define ASN1_NDEF_SEQUENCE(tname) \

 	ASN1_SEQUENCE(tname)

 #define ASN1_SEQUENCE_cb(tname, cb) \

 	static const ASN1_AUX tname##_aux = {NULL, 0, 0, 0, cb, 0}; \

 	ASN1_SEQUENCE(tname)

 #define ASN1_BROKEN_SEQUENCE(tname) \

 	static const ASN1_AUX tname##_aux = {NULL, ASN1_AFLG_BROKEN, 0, 0, 0, 0}; \

 	ASN1_SEQUENCE(tname)

 #define ASN1_SEQUENCE_ref(tname, cb, lck) \

 	static const ASN1_AUX tname##_aux = {NULL, ASN1_AFLG_REFCOUNT, offsetof(tname, references), lck, cb, 0}; \

 	ASN1_SEQUENCE(tname)

 #define ASN1_SEQUENCE_enc(tname, enc, cb) \

 	static const ASN1_AUX tname##_aux = {NULL, ASN1_AFLG_ENCODING, 0, 0, cb, offsetof(tname, enc)}; \

 	ASN1_SEQUENCE(tname)

 #define ASN1_NDEF_SEQUENCE_END(tname) \

 	;\

 	ASN1_ITEM_start(tname) \

 		ASN1_ITYPE_NDEF_SEQUENCE,\

 		V_ASN1_SEQUENCE,\

 		tname##_seq_tt,\

 		sizeof(tname##_seq_tt) / sizeof(ASN1_TEMPLATE),\

 		NULL,\

 		sizeof(tname),\

 		#tname \

 	ASN1_ITEM_end(tname)

 #define ASN1_BROKEN_SEQUENCE_END(stname) ASN1_SEQUENCE_END_ref(stname, stname)

 #define ASN1_SEQUENCE_END_enc(stname, tname) ASN1_SEQUENCE_END_ref(stname, tname)

 #define ASN1_SEQUENCE_END_cb(stname, tname) ASN1_SEQUENCE_END_ref(stname, tname)

 #define ASN1_SEQUENCE_END_ref(stname, tname) \

 	;\

 	ASN1_ITEM_start(tname) \

 		ASN1_ITYPE_SEQUENCE,\

 		V_ASN1_SEQUENCE,\

 		tname##_seq_tt,\

 		sizeof(tname##_seq_tt) / sizeof(ASN1_TEMPLATE),\

 		&tname##_aux,\

 		sizeof(stname),\

 		#stname \

 	ASN1_ITEM_end(tname)

 /* This pair helps declare a CHOICE type. We can do:

  *

  * 	ASN1_CHOICE(chname) = {

  * 		... CHOICE options ...

  * 	ASN1_CHOICE_END(chname)

  *

  * 	This will produce an ASN1_ITEM called chname_it

  *	for a structure called chname. The structure

  *	definition must look like this:

  *	typedef struct {

  *		int type;

  *		union {

  *			ASN1_SOMETHING *opt1;

  *			ASN1_SOMEOTHER *opt2;

  *		} value;

  *	} chname;

  *	

  *	the name of the selector must be 'type'.

  * 	to use an alternative selector name use the

  *      ASN1_CHOICE_END_selector() version.

  */

 #define ASN1_CHOICE(tname) \

 	static const ASN1_TEMPLATE tname##_ch_tt[] 

 #define ASN1_CHOICE_cb(tname, cb) \

 	static const ASN1_AUX tname##_aux = {NULL, 0, 0, 0, cb, 0}; \

 	ASN1_CHOICE(tname)

 #define ASN1_CHOICE_END(stname) ASN1_CHOICE_END_name(stname, stname)

 #define ASN1_CHOICE_END_name(stname, tname) ASN1_CHOICE_END_selector(stname, tname, type)

 #define ASN1_CHOICE_END_selector(stname, tname, selname) \

 	;\

 	ASN1_ITEM_start(tname) \

 		ASN1_ITYPE_CHOICE,\

 		offsetof(stname,selname) ,\

 		tname##_ch_tt,\

 		sizeof(tname##_ch_tt) / sizeof(ASN1_TEMPLATE),\

 		NULL,\

 		sizeof(stname),\

 		#stname \

 	ASN1_ITEM_end(tname)

 #define ASN1_CHOICE_END_cb(stname, tname, selname) \

 	;\

 	ASN1_ITEM_start(tname) \

 		ASN1_ITYPE_CHOICE,\

 		offsetof(stname,selname) ,\

 		tname##_ch_tt,\

 		sizeof(tname##_ch_tt) / sizeof(ASN1_TEMPLATE),\

 		&tname##_aux,\

 		sizeof(stname),\

 		#stname \

 	ASN1_ITEM_end(tname)

 /* This helps with the template wrapper form of ASN1_ITEM */

 #define ASN1_EX_TEMPLATE_TYPE(flags, tag, name, type) { \

 	(flags), (tag), 0,\

 	#name, ASN1_ITEM_ref(type) }

 /* These help with SEQUENCE or CHOICE components */

 /* used to declare other types */

 #define ASN1_EX_TYPE(flags, tag, stname, field, type) { \

 	(flags), (tag), offsetof(stname, field),\

 	#field, ASN1_ITEM_ref(type) }

 /* used when the structure is combined with the parent */

 #define ASN1_EX_COMBINE(flags, tag, type) { \

 	(flags)|ASN1_TFLG_COMBINE, (tag), 0, NULL, ASN1_ITEM_ref(type) }

 /* implicit and explicit helper macros */

 #define ASN1_IMP_EX(stname, field, type, tag, ex) \

 		ASN1_EX_TYPE(ASN1_TFLG_IMPLICIT | ex, tag, stname, field, type)

 #define ASN1_EXP_EX(stname, field, type, tag, ex) \

 		ASN1_EX_TYPE(ASN1_TFLG_EXPLICIT | ex, tag, stname, field, type)

 /* Any defined by macros: the field used is in the table itself */

 #ifndef OPENSSL_EXPORT_VAR_AS_FUNCTION

 #define ASN1_ADB_OBJECT(tblname) { ASN1_TFLG_ADB_OID, -1, 0, #tblname, (const ASN1_ITEM *)&(tblname##_adb) }

 #define ASN1_ADB_INTEGER(tblname) { ASN1_TFLG_ADB_INT, -1, 0, #tblname, (const ASN1_ITEM *)&(tblname##_adb) }

 #else

 #define ASN1_ADB_OBJECT(tblname) { ASN1_TFLG_ADB_OID, -1, 0, #tblname, tblname##_adb }

 #define ASN1_ADB_INTEGER(tblname) { ASN1_TFLG_ADB_INT, -1, 0, #tblname, tblname##_adb }

 #endif

 /* Plain simple type */

 #define ASN1_SIMPLE(stname, field, type) ASN1_EX_TYPE(0,0, stname, field, type)

 /* OPTIONAL simple type */

 #define ASN1_OPT(stname, field, type) ASN1_EX_TYPE(ASN1_TFLG_OPTIONAL, 0, stname, field, type)

 /* IMPLICIT tagged simple type */

 #define ASN1_IMP(stname, field, type, tag) ASN1_IMP_EX(stname, field, type, tag, 0)

 /* IMPLICIT tagged OPTIONAL simple type */

 #define ASN1_IMP_OPT(stname, field, type, tag) ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_OPTIONAL)

 /* Same as above but EXPLICIT */

 #define ASN1_EXP(stname, field, type, tag) ASN1_EXP_EX(stname, field, type, tag, 0)

 #define ASN1_EXP_OPT(stname, field, type, tag) ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_OPTIONAL)

 /* SEQUENCE OF type */

 #define ASN1_SEQUENCE_OF(stname, field, type) \

 		ASN1_EX_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, stname, field, type)

 /* OPTIONAL SEQUENCE OF */

 #define ASN1_SEQUENCE_OF_OPT(stname, field, type) \

 		ASN1_EX_TYPE(ASN1_TFLG_SEQUENCE_OF|ASN1_TFLG_OPTIONAL, 0, stname, field, type)

 /* Same as above but for SET OF */

 #define ASN1_SET_OF(stname, field, type) \

 		ASN1_EX_TYPE(ASN1_TFLG_SET_OF, 0, stname, field, type)

 #define ASN1_SET_OF_OPT(stname, field, type) \

 		ASN1_EX_TYPE(ASN1_TFLG_SET_OF|ASN1_TFLG_OPTIONAL, 0, stname, field, type)

 /* Finally compound types of SEQUENCE, SET, IMPLICIT, EXPLICIT and OPTIONAL */

 #define ASN1_IMP_SET_OF(stname, field, type, tag) \

 			ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF)

 #define ASN1_EXP_SET_OF(stname, field, type, tag) \

 			ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF)

 #define ASN1_IMP_SET_OF_OPT(stname, field, type, tag) \

 			ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF|ASN1_TFLG_OPTIONAL)

 #define ASN1_EXP_SET_OF_OPT(stname, field, type, tag) \

 			ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF|ASN1_TFLG_OPTIONAL)

 #define ASN1_IMP_SEQUENCE_OF(stname, field, type, tag) \

 			ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF)

 #define ASN1_IMP_SEQUENCE_OF_OPT(stname, field, type, tag) \

 			ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF|ASN1_TFLG_OPTIONAL)

 #define ASN1_EXP_SEQUENCE_OF(stname, field, type, tag) \

 			ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF)

 #define ASN1_EXP_SEQUENCE_OF_OPT(stname, field, type, tag) \

 			ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF|ASN1_TFLG_OPTIONAL)

 /* EXPLICIT OPTIONAL using indefinite length constructed form */

 #define ASN1_NDEF_EXP_OPT(stname, field, type, tag) \

 			ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_OPTIONAL|ASN1_TFLG_NDEF)

 /* Macros for the ASN1_ADB structure */

 #define ASN1_ADB(name) \

 	static const ASN1_ADB_TABLE name##_adbtbl[] 

 #ifndef OPENSSL_EXPORT_VAR_AS_FUNCTION

 #define ASN1_ADB_END(name, flags, field, app_table, def, none) \

 	;\

 	static const ASN1_ADB name##_adb = {\

 		flags,\

 		offsetof(name, field),\

 		app_table,\

 		name##_adbtbl,\

 		sizeof(name##_adbtbl) / sizeof(ASN1_ADB_TABLE),\

 		def,\

 		none\

 	}

 #else

 #define ASN1_ADB_END(name, flags, field, app_table, def, none) \

 	;\

 	EXPORT_C static const ASN1_ITEM *name##_adb(void) \

 	{ \

 	static const ASN1_ADB internal_adb = \

 		{\

 		flags,\

 		offsetof(name, field),\

 		app_table,\

 		name##_adbtbl,\

 		sizeof(name##_adbtbl) / sizeof(ASN1_ADB_TABLE),\

 		def,\

 		none\

 		}; \

 		return (const ASN1_ITEM *) &internal_adb; \

 	} \

 	void dummy_function(void)

 #endif

 #define ADB_ENTRY(val, template) {val, template}

 #define ASN1_ADB_TEMPLATE(name) \

 	static const ASN1_TEMPLATE name##_tt 

 /* This is the ASN1 template structure that defines

  * a wrapper round the actual type. It determines the

  * actual position of the field in the value structure,

  * various flags such as OPTIONAL and the field name.

  */

 struct ASN1_TEMPLATE_st {

 unsigned long flags;		/* Various flags */

 long tag;			/* tag, not used if no tagging */

 unsigned long offset;		/* Offset of this field in structure */

 #ifndef NO_ASN1_FIELD_NAMES

 const char *field_name;		/* Field name */

 #endif

 ASN1_ITEM_EXP *item;		/* Relevant ASN1_ITEM or ASN1_ADB */

 };

 /* Macro to extract ASN1_ITEM and ASN1_ADB pointer from ASN1_TEMPLATE */

 #define ASN1_TEMPLATE_item(t) (t->item_ptr)

 #define ASN1_TEMPLATE_adb(t) (t->item_ptr)

 typedef struct ASN1_ADB_TABLE_st ASN1_ADB_TABLE;

 typedef struct ASN1_ADB_st ASN1_ADB;

 struct ASN1_ADB_st {

 	unsigned long flags;	/* Various flags */

 	unsigned long offset;	/* Offset of selector field */

 	STACK_OF(ASN1_ADB_TABLE) **app_items; /* Application defined items */

 	const ASN1_ADB_TABLE *tbl;	/* Table of possible types */

 	long tblcount;		/* Number of entries in tbl */

 	const ASN1_TEMPLATE *default_tt;  /* Type to use if no match */

 	const ASN1_TEMPLATE *null_tt;  /* Type to use if selector is NULL */

 };

 struct ASN1_ADB_TABLE_st {

 	long value;		/* NID for an object or value for an int */

 	const ASN1_TEMPLATE tt;		/* item for this value */

 };

 /* template flags */

 /* Field is optional */

 #define ASN1_TFLG_OPTIONAL	(0x1)

 /* Field is a SET OF */

 #define ASN1_TFLG_SET_OF	(0x1 << 1)

 /* Field is a SEQUENCE OF */

 #define ASN1_TFLG_SEQUENCE_OF	(0x2 << 1)

 /* Special case: this refers to a SET OF that

  * will be sorted into DER order when encoded *and*

  * the corresponding STACK will be modified to match

  * the new order.

  */

 #define ASN1_TFLG_SET_ORDER	(0x3 << 1)

 /* Mask for SET OF or SEQUENCE OF */

 #define ASN1_TFLG_SK_MASK	(0x3 << 1)

 /* These flags mean the tag should be taken from the

  * tag field. If EXPLICIT then the underlying type

  * is used for the inner tag.

  */

 /* IMPLICIT tagging */

 #define ASN1_TFLG_IMPTAG	(0x1 << 3)

 /* EXPLICIT tagging, inner tag from underlying type */

 #define ASN1_TFLG_EXPTAG	(0x2 << 3)

 #define ASN1_TFLG_TAG_MASK	(0x3 << 3)

 /* context specific IMPLICIT */

 #define ASN1_TFLG_IMPLICIT	ASN1_TFLG_IMPTAG|ASN1_TFLG_CONTEXT

 /* context specific EXPLICIT */

 #define ASN1_TFLG_EXPLICIT	ASN1_TFLG_EXPTAG|ASN1_TFLG_CONTEXT

 /* If tagging is in force these determine the

  * type of tag to use. Otherwise the tag is

  * determined by the underlying type. These 

  * values reflect the actual octet format.

  */

 /* Universal tag */ 

 #define ASN1_TFLG_UNIVERSAL	(0x0<<6)

 /* Application tag */ 

 #define ASN1_TFLG_APPLICATION	(0x1<<6)

 /* Context specific tag */ 

 #define ASN1_TFLG_CONTEXT	(0x2<<6)

 /* Private tag */ 

 #define ASN1_TFLG_PRIVATE	(0x3<<6)

 #define ASN1_TFLG_TAG_CLASS	(0x3<<6)

 /* These are for ANY DEFINED BY type. In this case

  * the 'item' field points to an ASN1_ADB structure

  * which contains a table of values to decode the

  * relevant type

  */

 #define ASN1_TFLG_ADB_MASK	(0x3<<8)

 #define ASN1_TFLG_ADB_OID	(0x1<<8)

 #define ASN1_TFLG_ADB_INT	(0x1<<9)

 /* This flag means a parent structure is passed

  * instead of the field: this is useful is a

  * SEQUENCE is being combined with a CHOICE for

  * example. Since this means the structure and

  * item name will differ we need to use the

  * ASN1_CHOICE_END_name() macro for example.

  */

 #define ASN1_TFLG_COMBINE	(0x1<<10)

 /* This flag when present in a SEQUENCE OF, SET OF

  * or EXPLICIT causes indefinite length constructed

  * encoding to be used if required.

  */

 #define ASN1_TFLG_NDEF		(0x1<<11)

 /* This is the actual ASN1 item itself */

 struct ASN1_ITEM_st {

 char itype;			/* The item type, primitive, SEQUENCE, CHOICE or extern */

 long utype;			/* underlying type */

 const ASN1_TEMPLATE *templates;	/* If SEQUENCE or CHOICE this contains the contents */

 long tcount;			/* Number of templates if SEQUENCE or CHOICE */

 const void *funcs;		/* functions that handle this type */

 long size;			/* Structure size (usually)*/

 #ifndef NO_ASN1_FIELD_NAMES

 const char *sname;		/* Structure name */

 #endif

 };

 /* These are values for the itype field and

  * determine how the type is interpreted.

  *

  * For PRIMITIVE types the underlying type

  * determines the behaviour if items is NULL.

  *

  * Otherwise templates must contain a single 

  * template and the type is treated in the

  * same way as the type specified in the template.

  *

  * For SEQUENCE types the templates field points

  * to the members, the size field is the

  * structure size.

  *

  * For CHOICE types the templates field points

  * to each possible member (typically a union)

  * and the 'size' field is the offset of the

  * selector.

  *

  * The 'funcs' field is used for application

  * specific functions. 

  *

  * For COMPAT types the funcs field gives a

  * set of functions that handle this type, this

  * supports the old d2i, i2d convention.

  *

  * The EXTERN type uses a new style d2i/i2d.

  * The new style should be used where possible

  * because it avoids things like the d2i IMPLICIT

  * hack.

  *

  * MSTRING is a multiple string type, it is used

  * for a CHOICE of character strings where the

  * actual strings all occupy an ASN1_STRING

  * structure. In this case the 'utype' field

  * has a special meaning, it is used as a mask

  * of acceptable types using the B_ASN1 constants.

  *

  * NDEF_SEQUENCE is the same as SEQUENCE except

  * that it will use indefinite length constructed

  * encoding if requested.

  *

  */

 #define ASN1_ITYPE_PRIMITIVE		0x0

 #define ASN1_ITYPE_SEQUENCE		0x1

 #define ASN1_ITYPE_CHOICE		0x2

 #define ASN1_ITYPE_COMPAT		0x3

 #define ASN1_ITYPE_EXTERN		0x4

 #define ASN1_ITYPE_MSTRING		0x5

 #define ASN1_ITYPE_NDEF_SEQUENCE	0x6

 /* Cache for ASN1 tag and length, so we

  * don't keep re-reading it for things

  * like CHOICE

  */

 struct ASN1_TLC_st{

 	char valid;	/* Values below are valid */

 	int ret;	/* return value */

 	long plen;	/* length */

 	int ptag;	/* class value */

 	int pclass;	/* class value */

 	int hdrlen;	/* header length */

 };

 /* Typedefs for ASN1 function pointers */

 typedef ASN1_VALUE * ASN1_new_func(void);

 typedef void ASN1_free_func(ASN1_VALUE *a);

 typedef ASN1_VALUE * ASN1_d2i_func(ASN1_VALUE **a, const unsigned char ** in, long length);

 typedef int ASN1_i2d_func(ASN1_VALUE * a, unsigned char **in);

 typedef int ASN1_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, const ASN1_ITEM *it,

 					int tag, int aclass, char opt, ASN1_TLC *ctx);

 typedef int ASN1_ex_i2d(ASN1_VALUE **pval, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass);

 typedef int ASN1_ex_new_func(ASN1_VALUE **pval, const ASN1_ITEM *it);

 typedef void ASN1_ex_free_func(ASN1_VALUE **pval, const ASN1_ITEM *it);

 typedef int ASN1_primitive_i2c(ASN1_VALUE **pval, unsigned char *cont, int *putype, const ASN1_ITEM *it);

 typedef int ASN1_primitive_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len, int utype, char *free_cont, const ASN1_ITEM *it);

 typedef struct ASN1_COMPAT_FUNCS_st {

 	ASN1_new_func *asn1_new;

 	ASN1_free_func *asn1_free;

 	ASN1_d2i_func *asn1_d2i;

 	ASN1_i2d_func *asn1_i2d;

 } ASN1_COMPAT_FUNCS;

 typedef struct ASN1_EXTERN_FUNCS_st {

 	void *app_data;

 	ASN1_ex_new_func *asn1_ex_new;

 	ASN1_ex_free_func *asn1_ex_free;

 	ASN1_ex_free_func *asn1_ex_clear;

 	ASN1_ex_d2i *asn1_ex_d2i;

 	ASN1_ex_i2d *asn1_ex_i2d;

 } ASN1_EXTERN_FUNCS;

 typedef struct ASN1_PRIMITIVE_FUNCS_st {

 	void *app_data;

 	unsigned long flags;

 	ASN1_ex_new_func *prim_new;

 	ASN1_ex_free_func *prim_free;

 	ASN1_ex_free_func *prim_clear;

 	ASN1_primitive_c2i *prim_c2i;

 	ASN1_primitive_i2c *prim_i2c;

 } ASN1_PRIMITIVE_FUNCS;

 /* This is the ASN1_AUX structure: it handles various

  * miscellaneous requirements. For example the use of

  * reference counts and an informational callback.

  *

  * The "informational callback" is called at various

  * points during the ASN1 encoding and decoding. It can

  * be used to provide minor customisation of the structures

  * used. This is most useful where the supplied routines

  * *almost* do the right thing but need some extra help

  * at a few points. If the callback returns zero then

  * it is assumed a fatal error has occurred and the 

  * main operation should be abandoned.

  *

  * If major changes in the default behaviour are required

  * then an external type is more appropriate.

  */

 typedef int ASN1_aux_cb(int operation, ASN1_VALUE **in, const ASN1_ITEM *it);

 typedef struct ASN1_AUX_st {

 	void *app_data;

 	int flags;

 	int ref_offset;		/* Offset of reference value */

 	int ref_lock;		/* Lock type to use */

 	ASN1_aux_cb *asn1_cb;

 	int enc_offset;		/* Offset of ASN1_ENCODING structure */

 } ASN1_AUX;

 /* Flags in ASN1_AUX */

 /* Use a reference count */

 #define ASN1_AFLG_REFCOUNT	1

 /* Save the encoding of structure (useful for signatures) */

 #define ASN1_AFLG_ENCODING	2

 /* The Sequence length is invalid */

 #define ASN1_AFLG_BROKEN	4

 /* operation values for asn1_cb */

 #define ASN1_OP_NEW_PRE		0

 #define ASN1_OP_NEW_POST	1

 #define ASN1_OP_FREE_PRE	2

 #define ASN1_OP_FREE_POST	3

 #define ASN1_OP_D2I_PRE		4

 #define ASN1_OP_D2I_POST	5

 #define ASN1_OP_I2D_PRE		6

 #define ASN1_OP_I2D_POST	7

 /* Macro to implement a primitive type */

 #define IMPLEMENT_ASN1_TYPE(stname) IMPLEMENT_ASN1_TYPE_ex(stname, stname, 0)

 #define IMPLEMENT_ASN1_TYPE_ex(itname, vname, ex) \

 				ASN1_ITEM_start(itname) \

 					ASN1_ITYPE_PRIMITIVE, V_##vname, NULL, 0, NULL, ex, #itname \

 				ASN1_ITEM_end(itname)

 /* Macro to implement a multi string type */

 #define IMPLEMENT_ASN1_MSTRING(itname, mask) \

 				ASN1_ITEM_start(itname) \

 					ASN1_ITYPE_MSTRING, mask, NULL, 0, NULL, sizeof(ASN1_STRING), #itname \

 				ASN1_ITEM_end(itname)

 /* Macro to implement an ASN1_ITEM in terms of old style funcs */

 #define IMPLEMENT_COMPAT_ASN1(sname) IMPLEMENT_COMPAT_ASN1_type(sname, V_ASN1_SEQUENCE)

 #define IMPLEMENT_COMPAT_ASN1_type(sname, tag) \

 	static const ASN1_COMPAT_FUNCS sname##_ff = { \

 		(ASN1_new_func *)sname##_new, \

 		(ASN1_free_func *)sname##_free, \

 		(ASN1_d2i_func *)d2i_##sname, \

 		(ASN1_i2d_func *)i2d_##sname, \

 	}; \

 	ASN1_ITEM_start(sname) \

 		ASN1_ITYPE_COMPAT, \

 		tag, \

 		NULL, \

 		0, \

 		&sname##_ff, \

 		0, \

 		#sname \

 	ASN1_ITEM_end(sname)

 #define IMPLEMENT_EXTERN_ASN1(sname, tag, fptrs) \

 	ASN1_ITEM_start(sname) \

 		ASN1_ITYPE_EXTERN, \

 		tag, \

 		NULL, \

 		0, \

 		&fptrs, \

 		0, \

 		#sname \

 	ASN1_ITEM_end(sname)

 /* Macro to implement standard functions in terms of ASN1_ITEM structures */

 #define IMPLEMENT_ASN1_FUNCTIONS(stname) IMPLEMENT_ASN1_FUNCTIONS_fname(stname, stname, stname)

 #define IMPLEMENT_ASN1_FUNCTIONS_name(stname, itname) IMPLEMENT_ASN1_FUNCTIONS_fname(stname, itname, itname)

 #define IMPLEMENT_ASN1_FUNCTIONS_ENCODE_name(stname, itname) \

 			IMPLEMENT_ASN1_FUNCTIONS_ENCODE_fname(stname, itname, itname)

 #define IMPLEMENT_ASN1_ALLOC_FUNCTIONS(stname) \

 		IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, stname, stname)

 #define IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname) \

 	EXPORT_C stname *fname##_new(void) \

 	{ \

 		return (stname *)ASN1_item_new(ASN1_ITEM_rptr(itname)); \

 	} \

 	EXPORT_C void fname##_free(stname *a) \

 	{ \

 		ASN1_item_free((ASN1_VALUE *)a, ASN1_ITEM_rptr(itname)); \

 	}

 #define IMPLEMENT_ASN1_FUNCTIONS_fname(stname, itname, fname) \

 	IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(stname, itname, fname) \

 	IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname)

 #define IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(stname, itname, fname) \

 	EXPORT_C stname *d2i_##fname(stname **a, const unsigned char **in, long len) \

 	{ \

 		return (stname *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, ASN1_ITEM_rptr(itname));\

 	} \

 	EXPORT_C int i2d_##fname(stname *a, unsigned char **out) \

 	{ \

 		return ASN1_item_i2d((ASN1_VALUE *)a, out, ASN1_ITEM_rptr(itname));\

 	} 

 #define IMPLEMENT_ASN1_NDEF_FUNCTION(stname) \

 	EXPORT_C int i2d_##stname##_NDEF(stname *a, unsigned char **out) \

 	{ \

 		return ASN1_item_ndef_i2d((ASN1_VALUE *)a, out, ASN1_ITEM_rptr(stname));\

 	} 

 /* This includes evil casts to remove const: they will go away when full

  * ASN1 constification is done.

  */

 #define IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(stname, itname, fname) \

 	EXPORT_C stname *d2i_##fname(stname **a, const unsigned char **in, long len) \

 	{ \

 		return (stname *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, ASN1_ITEM_rptr(itname));\

 	} \

 	EXPORT_C int i2d_##fname(const stname *a, unsigned char **out) \

 	{ \

 		return ASN1_item_i2d((ASN1_VALUE *)a, out, ASN1_ITEM_rptr(itname));\

 	} 

 #define IMPLEMENT_ASN1_DUP_FUNCTION(stname) \

 	EXPORT_C stname * stname##_dup(stname *x) \

         { \

         return ASN1_item_dup(ASN1_ITEM_rptr(stname), x); \

         }

 #define IMPLEMENT_ASN1_FUNCTIONS_const(name) \

 		IMPLEMENT_ASN1_FUNCTIONS_const_fname(name, name, name)

 #define IMPLEMENT_ASN1_FUNCTIONS_const_fname(stname, itname, fname) \

 	IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(stname, itname, fname) \

 	IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname)

 /* external definitions for primitive types */

 DECLARE_ASN1_ITEM(ASN1_BOOLEAN)

 DECLARE_ASN1_ITEM(ASN1_TBOOLEAN)

 DECLARE_ASN1_ITEM(ASN1_FBOOLEAN)

 DECLARE_ASN1_ITEM(ASN1_SEQUENCE)

 DECLARE_ASN1_ITEM(CBIGNUM)

 DECLARE_ASN1_ITEM(BIGNUM)

 DECLARE_ASN1_ITEM(LONG)

 DECLARE_ASN1_ITEM(ZLONG)

 DECLARE_STACK_OF(ASN1_VALUE)

 /* Functions used internally by the ASN1 code */

 IMPORT_C int ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it);

 IMPORT_C void ASN1_item_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it);

 int ASN1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);

 int ASN1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it);

 IMPORT_C void ASN1_template_free(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);

 int ASN1_template_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, const ASN1_TEMPLATE *tt);

 IMPORT_C int ASN1_item_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, const ASN1_ITEM *it,

 				int tag, int aclass, char opt, ASN1_TLC *ctx);

 IMPORT_C int ASN1_item_ex_i2d(ASN1_VALUE **pval, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass);

 int ASN1_template_i2d(ASN1_VALUE **pval, unsigned char **out, const ASN1_TEMPLATE *tt);

 IMPORT_C void ASN1_primitive_free(ASN1_VALUE **pval, const ASN1_ITEM *it);

 int asn1_ex_i2c(ASN1_VALUE **pval, unsigned char *cont, int *putype, const ASN1_ITEM *it);

 int asn1_ex_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len, int utype, char *free_cont, const ASN1_ITEM *it);

 IMPORT_C int asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it);

 IMPORT_C int asn1_set_choice_selector(ASN1_VALUE **pval, int value, const ASN1_ITEM *it);

 IMPORT_C ASN1_VALUE ** asn1_get_field_ptr(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);

 IMPORT_C const ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt, int nullerr);

 IMPORT_C int asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it);

 IMPORT_C void asn1_enc_init(ASN1_VALUE **pval, const ASN1_ITEM *it);

 IMPORT_C void asn1_enc_free(ASN1_VALUE **pval, const ASN1_ITEM *it);

 IMPORT_C int asn1_enc_restore(int *len, unsigned char **out, ASN1_VALUE **pval, const ASN1_ITEM *it);

 IMPORT_C int asn1_enc_save(ASN1_VALUE **pval, const unsigned char *in, int inlen, const ASN1_ITEM *it);

 #ifdef  __cplusplus

 }

 #endif

 #endif