diff options
Diffstat (limited to 'libressl/include/openssl/asn1t.h')
| -rw-r--r-- | libressl/include/openssl/asn1t.h | 951 |
1 files changed, 0 insertions, 951 deletions
diff --git a/libressl/include/openssl/asn1t.h b/libressl/include/openssl/asn1t.h deleted file mode 100644 index d6168b65..00000000 --- a/libressl/include/openssl/asn1t.h +++ /dev/null @@ -1,951 +0,0 @@ -/* $OpenBSD: asn1t.h,v 1.15 2019/08/20 13:10:09 inoguchi Exp $ */ -/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL - * project 2000. - */ -/* ==================================================================== - * Copyright (c) 2000-2005 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/opensslconf.h> - -#include <openssl/asn1.h> - -/* ASN1 template defines, structures and functions */ - -#ifdef __cplusplus -extern "C" { -#endif - -#ifndef LIBRESSL_INTERNAL - -/* 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) \ - const ASN1_ITEM itname##_it = { - -#define static_ASN1_ITEM_start(itname) \ - static const ASN1_ITEM itname##_it = { - -#define ASN1_ITEM_end(itname) \ - }; - - - -/* 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) - -#define static_ASN1_ITEM_TEMPLATE_END(tname) \ - ;\ - static_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 static_ASN1_SEQUENCE_END(stname) static_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 static_ASN1_SEQUENCE_END_name(stname, tname) \ - ;\ - static_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_NDEF_SEQUENCE_cb(tname, cb) \ - ASN1_SEQUENCE_cb(tname, cb) - -#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 static_ASN1_NDEF_SEQUENCE_END(tname) \ - ;\ - static_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 static_ASN1_SEQUENCE_END_cb(stname, tname) static_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) - -#define static_ASN1_SEQUENCE_END_ref(stname, tname) \ - ;\ - static_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) - -#define ASN1_NDEF_SEQUENCE_END_cb(stname, tname) \ - ;\ - ASN1_ITEM_start(tname) \ - ASN1_ITYPE_NDEF_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 static_ASN1_CHOICE_END(stname) static_ASN1_CHOICE_END_name(stname, stname) - -#define ASN1_CHOICE_END_name(stname, tname) ASN1_CHOICE_END_selector(stname, tname, type) - -#define static_ASN1_CHOICE_END_name(stname, tname) static_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 static_ASN1_CHOICE_END_selector(stname, tname, selname) \ - ;\ - static_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 */ - -#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) } -/* 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 using indefinite length constructed form */ -#define ASN1_NDEF_EXP(stname, field, type, tag) \ - ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_NDEF) - -/* 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[] - - -#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\ - } - - -#define ADB_ENTRY(val, template) {val, template} - -#define ASN1_ADB_TEMPLATE(name) \ - static const ASN1_TEMPLATE name##_tt - -#endif /* !LIBRESSL_INTERNAL */ - -/* 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. - * - * 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_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_ex_print_func(BIO *out, ASN1_VALUE **pval, - int indent, const char *fname, - const ASN1_PCTX *pctx); - -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 int ASN1_primitive_print(BIO *out, ASN1_VALUE **pval, const ASN1_ITEM *it, int indent, const ASN1_PCTX *pctx); - -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_ex_print_func *asn1_ex_print; -} 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_print *prim_print; -} 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, - void *exarg); - -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; - -/* For print related callbacks exarg points to this structure */ -typedef struct ASN1_PRINT_ARG_st { - BIO *out; - int indent; - const ASN1_PCTX *pctx; -} ASN1_PRINT_ARG; - -/* For streaming related callbacks exarg points to this structure */ -typedef struct ASN1_STREAM_ARG_st { - /* BIO to stream through */ - BIO *out; - /* BIO with filters appended */ - BIO *ndef_bio; - /* Streaming I/O boundary */ - unsigned char **boundary; -} ASN1_STREAM_ARG; - -/* 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 -#define ASN1_OP_PRINT_PRE 8 -#define ASN1_OP_PRINT_POST 9 -#define ASN1_OP_STREAM_PRE 10 -#define ASN1_OP_STREAM_POST 11 -#define ASN1_OP_DETACHED_PRE 12 -#define ASN1_OP_DETACHED_POST 13 - -#ifndef LIBRESSL_INTERNAL - -/* 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) -#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_STATIC_ASN1_ALLOC_FUNCTIONS(stname) \ - IMPLEMENT_ASN1_ALLOC_FUNCTIONS_pfname(static, stname, stname, stname) - -#define IMPLEMENT_ASN1_ALLOC_FUNCTIONS(stname) \ - IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, stname, stname) - -#define IMPLEMENT_ASN1_ALLOC_FUNCTIONS_pfname(pre, stname, itname, fname) \ - pre stname *fname##_new(void) \ - { \ - return (stname *)ASN1_item_new(ASN1_ITEM_rptr(itname)); \ - } \ - pre void fname##_free(stname *a) \ - { \ - ASN1_item_free((ASN1_VALUE *)a, ASN1_ITEM_rptr(itname)); \ - } - -#define IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname) \ - stname *fname##_new(void) \ - { \ - return (stname *)ASN1_item_new(ASN1_ITEM_rptr(itname)); \ - } \ - 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) \ - 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));\ - } \ - 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) \ - 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) \ - 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));\ - } \ - 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) \ - stname * stname##_dup(stname *x) \ - { \ - return ASN1_item_dup(ASN1_ITEM_rptr(stname), x); \ - } - -#define IMPLEMENT_ASN1_PRINT_FUNCTION(stname) \ - IMPLEMENT_ASN1_PRINT_FUNCTION_fname(stname, stname, stname) - -#define IMPLEMENT_ASN1_PRINT_FUNCTION_fname(stname, itname, fname) \ - int fname##_print_ctx(BIO *out, stname *x, int indent, \ - const ASN1_PCTX *pctx) \ - { \ - return ASN1_item_print(out, (ASN1_VALUE *)x, indent, \ - ASN1_ITEM_rptr(itname), pctx); \ - } - -#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) - -#endif /* !LIBRESSL_INTERNAL */ - -/* external definitions for primitive types */ - -extern const ASN1_ITEM ASN1_BOOLEAN_it; -extern const ASN1_ITEM ASN1_TBOOLEAN_it; -extern const ASN1_ITEM ASN1_FBOOLEAN_it; -extern const ASN1_ITEM ASN1_SEQUENCE_it; -extern const ASN1_ITEM CBIGNUM_it; -extern const ASN1_ITEM BIGNUM_it; -extern const ASN1_ITEM LONG_it; -extern const ASN1_ITEM ZLONG_it; - -DECLARE_STACK_OF(ASN1_VALUE) - -/* Functions used internally by the ASN1 code */ - -int ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it); -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); - -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); -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); - -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); -void ASN1_primitive_free(ASN1_VALUE **pval, 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); - -int asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it); -int asn1_set_choice_selector(ASN1_VALUE **pval, int value, const ASN1_ITEM *it); - -ASN1_VALUE ** asn1_get_field_ptr(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt); - -const ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt, int nullerr); - -int asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it); - -void asn1_enc_init(ASN1_VALUE **pval, const ASN1_ITEM *it); -void asn1_enc_free(ASN1_VALUE **pval, const ASN1_ITEM *it); -int asn1_enc_restore(int *len, unsigned char **out, ASN1_VALUE **pval, const ASN1_ITEM *it); -int asn1_enc_save(ASN1_VALUE **pval, const unsigned char *in, int inlen, const ASN1_ITEM *it); - -#ifdef __cplusplus -} -#endif -#endif |