/* crypto/asn1/asn1.h *//* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. *  * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to.  The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code.  The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). *  * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. *  * 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 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 acknowledgement: *    "This product includes cryptographic software written by *     Eric Young (eay@cryptsoft.com)" *    The word 'cryptographic' can be left out if the rouines from the library *    being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from  *    the apps directory (application code) you must include an acknowledgement: *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" *  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS 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 AUTHOR OR 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. *  * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed.  i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */#ifndef HEADER_ASN1_H#define HEADER_ASN1_H#include <time.h>#ifndef OPENSSL_NO_BIO#include <openssl/bio.h>#endif#include <openssl/e_os2.h>#include <openssl/bn.h>#include <openssl/stack.h>#include <openssl/safestack.h>#include <openssl/symhacks.h>#include <openssl/ossl_typ.h>#ifdef OPENSSL_BUILD_SHLIBCRYPTO# undef OPENSSL_EXTERN# define OPENSSL_EXTERN OPENSSL_EXPORT#endif#ifdef  __cplusplusextern "C" {#endif#define V_ASN1_UNIVERSAL		0x00#define	V_ASN1_APPLICATION		0x40#define V_ASN1_CONTEXT_SPECIFIC		0x80#define V_ASN1_PRIVATE			0xc0#define V_ASN1_CONSTRUCTED		0x20#define V_ASN1_PRIMITIVE_TAG		0x1f#define V_ASN1_PRIMATIVE_TAG		0x1f#define V_ASN1_APP_CHOOSE		-2	/* let the recipient choose */#define V_ASN1_OTHER			-3	/* used in ASN1_TYPE */#define V_ASN1_ANY			-4	/* used in ASN1 template code */#define V_ASN1_NEG			0x100	/* negative flag */#define V_ASN1_UNDEF			-1#define V_ASN1_EOC			0#define V_ASN1_BOOLEAN			1	/**/#define V_ASN1_INTEGER			2#define V_ASN1_NEG_INTEGER		(2 | V_ASN1_NEG)#define V_ASN1_BIT_STRING		3#define V_ASN1_OCTET_STRING		4#define V_ASN1_NULL			5#define V_ASN1_OBJECT			6#define V_ASN1_OBJECT_DESCRIPTOR	7#define V_ASN1_EXTERNAL			8#define V_ASN1_REAL			9#define V_ASN1_ENUMERATED		10#define V_ASN1_NEG_ENUMERATED		(10 | V_ASN1_NEG)#define V_ASN1_UTF8STRING		12#define V_ASN1_SEQUENCE			16#define V_ASN1_SET			17#define V_ASN1_NUMERICSTRING		18	/**/#define V_ASN1_PRINTABLESTRING		19#define V_ASN1_T61STRING		20#define V_ASN1_TELETEXSTRING		20	/* alias */#define V_ASN1_VIDEOTEXSTRING		21	/**/#define V_ASN1_IA5STRING		22#define V_ASN1_UTCTIME			23#define V_ASN1_GENERALIZEDTIME		24	/**/#define V_ASN1_GRAPHICSTRING		25	/**/#define V_ASN1_ISO64STRING		26	/**/#define V_ASN1_VISIBLESTRING		26	/* alias */#define V_ASN1_GENERALSTRING		27	/**/#define V_ASN1_UNIVERSALSTRING		28	/**/#define V_ASN1_BMPSTRING		30/* For use with d2i_ASN1_type_bytes() */#define B_ASN1_NUMERICSTRING	0x0001#define B_ASN1_PRINTABLESTRING	0x0002#define B_ASN1_T61STRING	0x0004#define B_ASN1_TELETEXSTRING	0x0004#define B_ASN1_VIDEOTEXSTRING	0x0008#define B_ASN1_IA5STRING	0x0010#define B_ASN1_GRAPHICSTRING	0x0020#define B_ASN1_ISO64STRING	0x0040#define B_ASN1_VISIBLESTRING	0x0040#define B_ASN1_GENERALSTRING	0x0080#define B_ASN1_UNIVERSALSTRING	0x0100#define B_ASN1_OCTET_STRING	0x0200#define B_ASN1_BIT_STRING	0x0400#define B_ASN1_BMPSTRING	0x0800#define B_ASN1_UNKNOWN		0x1000#define B_ASN1_UTF8STRING	0x2000#define B_ASN1_UTCTIME		0x4000#define B_ASN1_GENERALIZEDTIME	0x8000/* For use with ASN1_mbstring_copy() */#define MBSTRING_FLAG		0x1000#define MBSTRING_ASC		(MBSTRING_FLAG|1)#define MBSTRING_BMP		(MBSTRING_FLAG|2)#define MBSTRING_UNIV		(MBSTRING_FLAG|3)#define MBSTRING_UTF8		(MBSTRING_FLAG|4)struct X509_algor_st;#define DECLARE_ASN1_SET_OF(type) /* filled in by mkstack.pl */#define IMPLEMENT_ASN1_SET_OF(type) /* nothing, no longer needed */typedef struct asn1_ctx_st	{	unsigned char *p;/* work char pointer */	int eos;	/* end of sequence read for indefinite encoding */	int error;	/* error code to use when returning an error */	int inf;	/* constructed if 0x20, indefinite is 0x21 */	int tag;	/* tag from last 'get object' */	int xclass;	/* class from last 'get object' */	long slen;	/* length of last 'get object' */	unsigned char *max; /* largest value of p allowed */	unsigned char *q;/* temporary variable */	unsigned char **pp;/* variable */	int line;	/* used in error processing */	} ASN1_CTX;/* These are used internally in the ASN1_OBJECT to keep track of * whether the names and data need to be free()ed */#define ASN1_OBJECT_FLAG_DYNAMIC	 0x01	/* internal use */#define ASN1_OBJECT_FLAG_CRITICAL	 0x02	/* critical x509v3 object id */#define ASN1_OBJECT_FLAG_DYNAMIC_STRINGS 0x04	/* internal use */#define ASN1_OBJECT_FLAG_DYNAMIC_DATA 	 0x08	/* internal use */typedef struct asn1_object_st	{	const char *sn,*ln;	int nid;	int length;	unsigned char *data;	int flags;	/* Should we free this one */	} ASN1_OBJECT;#define ASN1_STRING_FLAG_BITS_LEFT 0x08 /* Set if 0x07 has bits left value *//* This is the base type that holds just about everything :-) */typedef struct asn1_string_st	{	int length;	int type;	unsigned char *data;	/* The value of the following field depends on the type being	 * held.  It is mostly being used for BIT_STRING so if the	 * input data has a non-zero 'unused bits' value, it will be	 * handled correctly */	long flags;	} ASN1_STRING;/* ASN1_ENCODING structure: this is used to save the received * encoding of an ASN1 type. This is useful to get round * problems with invalid encodings which can break signatures. */typedef struct ASN1_ENCODING_st	{	unsigned char *enc;	/* DER encoding */	long len;		/* Length of encoding */	int modified;		 /* set to 1 if 'enc' is invalid */	} ASN1_ENCODING;/* Used with ASN1 LONG type: if a long is set to this it is omitted */#define ASN1_LONG_UNDEF	0x7fffffffL#define STABLE_FLAGS_MALLOC	0x01#define STABLE_NO_MASK		0x02#define DIRSTRING_TYPE	\ (B_ASN1_PRINTABLESTRING|B_ASN1_T61STRING|B_ASN1_BMPSTRING|B_ASN1_UTF8STRING)#define PKCS9STRING_TYPE (DIRSTRING_TYPE|B_ASN1_IA5STRING)typedef struct asn1_string_table_st {	int nid;	long minsize;	long maxsize;	unsigned long mask;	unsigned long flags;} ASN1_STRING_TABLE;DECLARE_STACK_OF(ASN1_STRING_TABLE)/* size limits: this stuff is taken straight from RFC2459 */#define ub_name				32768#define ub_common_name			64#define ub_locality_name		128#define ub_state_name			128#define ub_organization_name		64#define ub_organization_unit_name	64#define ub_title			64#define ub_email_address		128/* Declarations for template structures: for full definitions * see asn1t.h */typedef struct ASN1_TEMPLATE_st ASN1_TEMPLATE;typedef struct ASN1_ITEM_st ASN1_ITEM;typedef struct ASN1_TLC_st ASN1_TLC;/* This is just an opaque pointer */typedef struct ASN1_VALUE_st ASN1_VALUE;/* Declare ASN1 functions: the implement macro in in asn1t.h */#define DECLARE_ASN1_FUNCTIONS(type) DECLARE_ASN1_FUNCTIONS_name(type, type)#define DECLARE_ASN1_FUNCTIONS_name(type, name) \	type *name##_new(void); \	void name##_free(type *a); \	DECLARE_ASN1_ENCODE_FUNCTIONS(type, name, name)#define DECLARE_ASN1_FUNCTIONS_fname(type, itname, name) \	type *name##_new(void); \	void name##_free(type *a); \	DECLARE_ASN1_ENCODE_FUNCTIONS(type, itname, name)#define	DECLARE_ASN1_ENCODE_FUNCTIONS(type, itname, name) \	type *d2i_##name(type **a, unsigned char **in, long len); \	int i2d_##name(type *a, unsigned char **out); \	DECLARE_ASN1_ITEM(itname)#define	DECLARE_ASN1_ENCODE_FUNCTIONS_const(type, name) \	type *d2i_##name(type **a, const unsigned char **in, long len); \	int i2d_##name(const type *a, unsigned char **out); \	DECLARE_ASN1_ITEM(name)#define DECLARE_ASN1_FUNCTIONS_const(name) \	name *name##_new(void); \	void name##_free(name *a);/* The following macros and typedefs allow an ASN1_ITEM * to be embedded in a structure and referenced. Since * the ASN1_ITEM pointers need to be globally accessible * (possibly from shared libraries) they may exist in * different forms. On platforms that support it the * ASN1_ITEM structure itself will be globally exported. * Other platforms will export a function that returns * an ASN1_ITEM pointer. * * To handle both cases transparently the macros below * should be used instead of hard coding an ASN1_ITEM * pointer in a structure. * * The structure will look like this: * * typedef struct SOMETHING_st { *      ... *      ASN1_ITEM_EXP *iptr; *      ... * } SOMETHING;  * * It would be initialised as e.g.: * * SOMETHING somevar = {...,ASN1_ITEM_ref(X509),...}; * * and the actual pointer extracted with: * * const ASN1_ITEM *it = ASN1_ITEM_ptr(somevar.iptr); * * Finally an ASN1_ITEM pointer can be extracted from an * appropriate reference with: ASN1_ITEM_rptr(X509). This * would be used when a function takes an ASN1_ITEM * argument. * */#ifndef OPENSSL_EXPORT_VAR_AS_FUNCTION/* ASN1_ITEM pointer exported type */typedef const ASN1_ITEM ASN1_ITEM_EXP;/* Macro to obtain ASN1_ITEM pointer from exported type */#define ASN1_ITEM_ptr(iptr) (iptr)/* Macro to include ASN1_ITEM pointer from base type */#define ASN1_ITEM_ref(iptr) (&(iptr##_it))#define ASN1_ITEM_rptr(ref) (&(ref##_it))#define DECLARE_ASN1_ITEM(name) \	OPENSSL_EXTERN const ASN1_ITEM name##_it;#else/* Platforms that can't easily handle shared global variables are declared * as functions returning ASN1_ITEM pointers. *//* ASN1_ITEM pointer exported type */typedef const ASN1_ITEM * ASN1_ITEM_EXP(void);/* Macro to obtain ASN1_ITEM pointer from exported type */#define ASN1_ITEM_ptr(iptr) (iptr())/* Macro to include ASN1_ITEM pointer from base type */#define ASN1_ITEM_ref(iptr) (iptr##_it)#define ASN1_ITEM_rptr(ref) (ref##_it())#define DECLARE_ASN1_ITEM(name) \	const ASN1_ITEM * name##_it(void);#endif/* Parameters used by ASN1_STRING_print_ex() *//* These determine which characters to escape: * RFC2253 special characters, control characters and * MSB set characters */#define ASN1_STRFLGS_ESC_2253		1#define ASN1_STRFLGS_ESC_CTRL		2#define ASN1_STRFLGS_ESC_MSB		4