--- /dev/null
+/*
+ * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#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 static_ASN1_ITEM_start(itname) \
+ static 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) \
+ const ASN1_ITEM * itname##_it(void) \
+ { \
+ static const ASN1_ITEM local_it = {
+
+# define static_ASN1_ITEM_start(itname) \
+ static ASN1_ITEM_start(itname)
+
+# 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)
+# 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) \
+ static const ASN1_AUX tname##_aux = {NULL, ASN1_AFLG_REFCOUNT, offsetof(tname, references), offsetof(tname, lock), 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 static_ASN1_BROKEN_SEQUENCE_END(stname) \
+ static_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) }
+
+/* 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)
+/* Embedded simple type */
+# define ASN1_EMBED(stname, field, type) ASN1_EX_TYPE(ASN1_TFLG_EMBED,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[]
+
+# ifndef OPENSSL_EXPORT_VAR_AS_FUNCTION
+
+# define ASN1_ADB_END(name, flags, field, adb_cb, def, none) \
+ ;\
+ static const ASN1_ADB name##_adb = {\
+ flags,\
+ offsetof(name, field),\
+ adb_cb,\
+ name##_adbtbl,\
+ sizeof(name##_adbtbl) / sizeof(ASN1_ADB_TABLE),\
+ def,\
+ none\
+ }
+
+# else
+
+# define ASN1_ADB_END(name, flags, field, adb_cb, def, none) \
+ ;\
+ static const ASN1_ITEM *name##_adb(void) \
+ { \
+ static const ASN1_ADB internal_adb = \
+ {\
+ flags,\
+ offsetof(name, field),\
+ adb_cb,\
+ 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 */
+ const char *field_name; /* Field name */
+ 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 */
+ int (*adb_cb)(long *psel); /* Application callback */
+ 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 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)
+
+/* Field is embedded and not a pointer */
+# define ASN1_TFLG_EMBED (0x1 << 12)
+
+/* 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) */
+ const char *sname; /* Structure name */
+};
+
+/*-
+ * 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 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
+
+/* 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));\
+ }
+
+# define IMPLEMENT_STATIC_ASN1_ENCODE_FUNCTIONS(stname) \
+ static stname *d2i_##stname(stname **a, \
+ const unsigned char **in, long len) \
+ { \
+ return (stname *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, \
+ ASN1_ITEM_rptr(stname)); \
+ } \
+ static int i2d_##stname(stname *a, unsigned char **out) \
+ { \
+ return ASN1_item_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)
+
+/* 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)
+
+DEFINE_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_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);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
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