freebsd-skq/crypto/heimdal/lib/asn1/asn1parse.y
Stanislav Sedov ae77177087 - Update FreeBSD Heimdal distribution to version 1.5.1. This also brings
several new kerberos related libraries and applications to FreeBSD:
  o kgetcred(1) allows one to manually get a ticket for a particular service.
  o kf(1) securily forwards ticket to another host through an authenticated
    and encrypted stream.
  o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1)
    and other user kerberos operations. klist and kswitch are just symlinks
    to kcc(1) now.
  o kswitch(1) allows you to easily switch between kerberos credentials if
    you're running KCM.
  o hxtool(1) is a certificate management tool to use with PKINIT.
  o string2key(1) maps a password into key.
  o kdigest(8) is a userland tool to access the KDC's digest interface.
  o kimpersonate(8) creates a "fake" ticket for a service.

  We also now install manpages for some lirbaries that were not installed
  before, libheimntlm and libhx509.

- The new HEIMDAL version no longer supports Kerberos 4.  All users are
  recommended to switch to Kerberos 5.

- Weak ciphers are now disabled by default.  To enable DES support (used
  by telnet(8)), use "allow_weak_crypto" option in krb5.conf.

- libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings
  disabled due to the function they use (krb5_get_err_text(3)) being
  deprecated.  I plan to work on this next.

- Heimdal's KDC now require sqlite to operate.  We use the bundled version
  and install it as libheimsqlite.  If some other FreeBSD components will
  require it in the future we can rename it to libbsdsqlite and use for these
  components as well.

- This is not a latest Heimdal version, the new one was released while I was
  working on the update.  I will update it to 1.5.2 soon, as it fixes some
  important bugs and security issues.
2012-03-22 08:48:42 +00:00

1038 lines
21 KiB
Plaintext

/*
* Copyright (c) 1997 - 2007 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Portions Copyright (c) 2009 Apple Inc. 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE 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.
*/
/* $Id$ */
%{
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "symbol.h"
#include "lex.h"
#include "gen_locl.h"
#include "der.h"
RCSID("$Id$");
static Type *new_type (Typetype t);
static struct constraint_spec *new_constraint_spec(enum ctype);
static Type *new_tag(int tagclass, int tagvalue, int tagenv, Type *oldtype);
void yyerror (const char *);
static struct objid *new_objid(const char *label, int value);
static void add_oid_to_tail(struct objid *, struct objid *);
static void fix_labels(Symbol *s);
struct string_list {
char *string;
struct string_list *next;
};
/* Declarations for Bison */
#define YYMALLOC malloc
#define YYFREE free
%}
%union {
int constant;
struct value *value;
struct range *range;
char *name;
Type *type;
Member *member;
struct objid *objid;
char *defval;
struct string_list *sl;
struct tagtype tag;
struct memhead *members;
struct constraint_spec *constraint_spec;
}
%token kw_ABSENT
%token kw_ABSTRACT_SYNTAX
%token kw_ALL
%token kw_APPLICATION
%token kw_AUTOMATIC
%token kw_BEGIN
%token kw_BIT
%token kw_BMPString
%token kw_BOOLEAN
%token kw_BY
%token kw_CHARACTER
%token kw_CHOICE
%token kw_CLASS
%token kw_COMPONENT
%token kw_COMPONENTS
%token kw_CONSTRAINED
%token kw_CONTAINING
%token kw_DEFAULT
%token kw_DEFINITIONS
%token kw_EMBEDDED
%token kw_ENCODED
%token kw_END
%token kw_ENUMERATED
%token kw_EXCEPT
%token kw_EXPLICIT
%token kw_EXPORTS
%token kw_EXTENSIBILITY
%token kw_EXTERNAL
%token kw_FALSE
%token kw_FROM
%token kw_GeneralString
%token kw_GeneralizedTime
%token kw_GraphicString
%token kw_IA5String
%token kw_IDENTIFIER
%token kw_IMPLICIT
%token kw_IMPLIED
%token kw_IMPORTS
%token kw_INCLUDES
%token kw_INSTANCE
%token kw_INTEGER
%token kw_INTERSECTION
%token kw_ISO646String
%token kw_MAX
%token kw_MIN
%token kw_MINUS_INFINITY
%token kw_NULL
%token kw_NumericString
%token kw_OBJECT
%token kw_OCTET
%token kw_OF
%token kw_OPTIONAL
%token kw_ObjectDescriptor
%token kw_PATTERN
%token kw_PDV
%token kw_PLUS_INFINITY
%token kw_PRESENT
%token kw_PRIVATE
%token kw_PrintableString
%token kw_REAL
%token kw_RELATIVE_OID
%token kw_SEQUENCE
%token kw_SET
%token kw_SIZE
%token kw_STRING
%token kw_SYNTAX
%token kw_T61String
%token kw_TAGS
%token kw_TRUE
%token kw_TYPE_IDENTIFIER
%token kw_TeletexString
%token kw_UNION
%token kw_UNIQUE
%token kw_UNIVERSAL
%token kw_UTCTime
%token kw_UTF8String
%token kw_UniversalString
%token kw_VideotexString
%token kw_VisibleString
%token kw_WITH
%token RANGE
%token EEQUAL
%token ELLIPSIS
%token <name> IDENTIFIER referencename
%token <name> STRING
%token <constant> NUMBER
%type <constant> SignedNumber
%type <constant> Class tagenv
%type <value> Value
%type <value> BuiltinValue
%type <value> IntegerValue
%type <value> BooleanValue
%type <value> ObjectIdentifierValue
%type <value> CharacterStringValue
%type <value> NullValue
%type <value> DefinedValue
%type <value> ReferencedValue
%type <value> Valuereference
%type <type> Type
%type <type> BuiltinType
%type <type> BitStringType
%type <type> BooleanType
%type <type> ChoiceType
%type <type> ConstrainedType
%type <type> EnumeratedType
%type <type> IntegerType
%type <type> NullType
%type <type> OctetStringType
%type <type> SequenceType
%type <type> SequenceOfType
%type <type> SetType
%type <type> SetOfType
%type <type> TaggedType
%type <type> ReferencedType
%type <type> DefinedType
%type <type> UsefulType
%type <type> ObjectIdentifierType
%type <type> CharacterStringType
%type <type> RestrictedCharactedStringType
%type <tag> Tag
%type <member> ComponentType
%type <member> NamedBit
%type <member> NamedNumber
%type <member> NamedType
%type <members> ComponentTypeList
%type <members> Enumerations
%type <members> NamedBitList
%type <members> NamedNumberList
%type <objid> objid objid_list objid_element objid_opt
%type <range> range size
%type <sl> referencenames
%type <constraint_spec> Constraint
%type <constraint_spec> ConstraintSpec
%type <constraint_spec> GeneralConstraint
%type <constraint_spec> ContentsConstraint
%type <constraint_spec> UserDefinedConstraint
%start ModuleDefinition
%%
ModuleDefinition: IDENTIFIER objid_opt kw_DEFINITIONS TagDefault ExtensionDefault
EEQUAL kw_BEGIN ModuleBody kw_END
{
checkundefined();
}
;
TagDefault : kw_EXPLICIT kw_TAGS
| kw_IMPLICIT kw_TAGS
{ lex_error_message("implicit tagging is not supported"); }
| kw_AUTOMATIC kw_TAGS
{ lex_error_message("automatic tagging is not supported"); }
| /* empty */
;
ExtensionDefault: kw_EXTENSIBILITY kw_IMPLIED
{ lex_error_message("no extensibility options supported"); }
| /* empty */
;
ModuleBody : Exports Imports AssignmentList
| /* empty */
;
Imports : kw_IMPORTS SymbolsImported ';'
| /* empty */
;
SymbolsImported : SymbolsFromModuleList
| /* empty */
;
SymbolsFromModuleList: SymbolsFromModule
| SymbolsFromModuleList SymbolsFromModule
;
SymbolsFromModule: referencenames kw_FROM IDENTIFIER objid_opt
{
struct string_list *sl;
for(sl = $1; sl != NULL; sl = sl->next) {
Symbol *s = addsym(sl->string);
s->stype = Stype;
gen_template_import(s);
}
add_import($3);
}
;
Exports : kw_EXPORTS referencenames ';'
{
struct string_list *sl;
for(sl = $2; sl != NULL; sl = sl->next)
add_export(sl->string);
}
| kw_EXPORTS kw_ALL
| /* empty */
;
AssignmentList : Assignment
| Assignment AssignmentList
;
Assignment : TypeAssignment
| ValueAssignment
;
referencenames : IDENTIFIER ',' referencenames
{
$$ = emalloc(sizeof(*$$));
$$->string = $1;
$$->next = $3;
}
| IDENTIFIER
{
$$ = emalloc(sizeof(*$$));
$$->string = $1;
$$->next = NULL;
}
;
TypeAssignment : IDENTIFIER EEQUAL Type
{
Symbol *s = addsym ($1);
s->stype = Stype;
s->type = $3;
fix_labels(s);
generate_type (s);
}
;
Type : BuiltinType
| ReferencedType
| ConstrainedType
;
BuiltinType : BitStringType
| BooleanType
| CharacterStringType
| ChoiceType
| EnumeratedType
| IntegerType
| NullType
| ObjectIdentifierType
| OctetStringType
| SequenceType
| SequenceOfType
| SetType
| SetOfType
| TaggedType
;
BooleanType : kw_BOOLEAN
{
$$ = new_tag(ASN1_C_UNIV, UT_Boolean,
TE_EXPLICIT, new_type(TBoolean));
}
;
range : '(' Value RANGE Value ')'
{
if($2->type != integervalue)
lex_error_message("Non-integer used in first part of range");
if($2->type != integervalue)
lex_error_message("Non-integer in second part of range");
$$ = ecalloc(1, sizeof(*$$));
$$->min = $2->u.integervalue;
$$->max = $4->u.integervalue;
}
| '(' Value RANGE kw_MAX ')'
{
if($2->type != integervalue)
lex_error_message("Non-integer in first part of range");
$$ = ecalloc(1, sizeof(*$$));
$$->min = $2->u.integervalue;
$$->max = $2->u.integervalue - 1;
}
| '(' kw_MIN RANGE Value ')'
{
if($4->type != integervalue)
lex_error_message("Non-integer in second part of range");
$$ = ecalloc(1, sizeof(*$$));
$$->min = $4->u.integervalue + 2;
$$->max = $4->u.integervalue;
}
| '(' Value ')'
{
if($2->type != integervalue)
lex_error_message("Non-integer used in limit");
$$ = ecalloc(1, sizeof(*$$));
$$->min = $2->u.integervalue;
$$->max = $2->u.integervalue;
}
;
IntegerType : kw_INTEGER
{
$$ = new_tag(ASN1_C_UNIV, UT_Integer,
TE_EXPLICIT, new_type(TInteger));
}
| kw_INTEGER range
{
$$ = new_type(TInteger);
$$->range = $2;
$$ = new_tag(ASN1_C_UNIV, UT_Integer, TE_EXPLICIT, $$);
}
| kw_INTEGER '{' NamedNumberList '}'
{
$$ = new_type(TInteger);
$$->members = $3;
$$ = new_tag(ASN1_C_UNIV, UT_Integer, TE_EXPLICIT, $$);
}
;
NamedNumberList : NamedNumber
{
$$ = emalloc(sizeof(*$$));
ASN1_TAILQ_INIT($$);
ASN1_TAILQ_INSERT_HEAD($$, $1, members);
}
| NamedNumberList ',' NamedNumber
{
ASN1_TAILQ_INSERT_TAIL($1, $3, members);
$$ = $1;
}
| NamedNumberList ',' ELLIPSIS
{ $$ = $1; } /* XXX used for Enumerations */
;
NamedNumber : IDENTIFIER '(' SignedNumber ')'
{
$$ = emalloc(sizeof(*$$));
$$->name = $1;
$$->gen_name = estrdup($1);
output_name ($$->gen_name);
$$->val = $3;
$$->optional = 0;
$$->ellipsis = 0;
$$->type = NULL;
}
;
EnumeratedType : kw_ENUMERATED '{' Enumerations '}'
{
$$ = new_type(TInteger);
$$->members = $3;
$$ = new_tag(ASN1_C_UNIV, UT_Enumerated, TE_EXPLICIT, $$);
}
;
Enumerations : NamedNumberList /* XXX */
;
BitStringType : kw_BIT kw_STRING
{
$$ = new_type(TBitString);
$$->members = emalloc(sizeof(*$$->members));
ASN1_TAILQ_INIT($$->members);
$$ = new_tag(ASN1_C_UNIV, UT_BitString, TE_EXPLICIT, $$);
}
| kw_BIT kw_STRING '{' NamedBitList '}'
{
$$ = new_type(TBitString);
$$->members = $4;
$$ = new_tag(ASN1_C_UNIV, UT_BitString, TE_EXPLICIT, $$);
}
;
ObjectIdentifierType: kw_OBJECT kw_IDENTIFIER
{
$$ = new_tag(ASN1_C_UNIV, UT_OID,
TE_EXPLICIT, new_type(TOID));
}
;
OctetStringType : kw_OCTET kw_STRING size
{
Type *t = new_type(TOctetString);
t->range = $3;
$$ = new_tag(ASN1_C_UNIV, UT_OctetString,
TE_EXPLICIT, t);
}
;
NullType : kw_NULL
{
$$ = new_tag(ASN1_C_UNIV, UT_Null,
TE_EXPLICIT, new_type(TNull));
}
;
size :
{ $$ = NULL; }
| kw_SIZE range
{ $$ = $2; }
;
SequenceType : kw_SEQUENCE '{' /* ComponentTypeLists */ ComponentTypeList '}'
{
$$ = new_type(TSequence);
$$->members = $3;
$$ = new_tag(ASN1_C_UNIV, UT_Sequence, TE_EXPLICIT, $$);
}
| kw_SEQUENCE '{' '}'
{
$$ = new_type(TSequence);
$$->members = NULL;
$$ = new_tag(ASN1_C_UNIV, UT_Sequence, TE_EXPLICIT, $$);
}
;
SequenceOfType : kw_SEQUENCE size kw_OF Type
{
$$ = new_type(TSequenceOf);
$$->range = $2;
$$->subtype = $4;
$$ = new_tag(ASN1_C_UNIV, UT_Sequence, TE_EXPLICIT, $$);
}
;
SetType : kw_SET '{' /* ComponentTypeLists */ ComponentTypeList '}'
{
$$ = new_type(TSet);
$$->members = $3;
$$ = new_tag(ASN1_C_UNIV, UT_Set, TE_EXPLICIT, $$);
}
| kw_SET '{' '}'
{
$$ = new_type(TSet);
$$->members = NULL;
$$ = new_tag(ASN1_C_UNIV, UT_Set, TE_EXPLICIT, $$);
}
;
SetOfType : kw_SET kw_OF Type
{
$$ = new_type(TSetOf);
$$->subtype = $3;
$$ = new_tag(ASN1_C_UNIV, UT_Set, TE_EXPLICIT, $$);
}
;
ChoiceType : kw_CHOICE '{' /* AlternativeTypeLists */ ComponentTypeList '}'
{
$$ = new_type(TChoice);
$$->members = $3;
}
;
ReferencedType : DefinedType
| UsefulType
;
DefinedType : IDENTIFIER
{
Symbol *s = addsym($1);
$$ = new_type(TType);
if(s->stype != Stype && s->stype != SUndefined)
lex_error_message ("%s is not a type\n", $1);
else
$$->symbol = s;
}
;
UsefulType : kw_GeneralizedTime
{
$$ = new_tag(ASN1_C_UNIV, UT_GeneralizedTime,
TE_EXPLICIT, new_type(TGeneralizedTime));
}
| kw_UTCTime
{
$$ = new_tag(ASN1_C_UNIV, UT_UTCTime,
TE_EXPLICIT, new_type(TUTCTime));
}
;
ConstrainedType : Type Constraint
{
/* if (Constraint.type == contentConstrant) {
assert(Constraint.u.constraint.type == octetstring|bitstring-w/o-NamedBitList); // remember to check type reference too
if (Constraint.u.constraint.type) {
assert((Constraint.u.constraint.type.length % 8) == 0);
}
}
if (Constraint.u.constraint.encoding) {
type == der-oid|ber-oid
}
*/
}
;
Constraint : '(' ConstraintSpec ')'
{
$$ = $2;
}
;
ConstraintSpec : GeneralConstraint
;
GeneralConstraint: ContentsConstraint
| UserDefinedConstraint
;
ContentsConstraint: kw_CONTAINING Type
{
$$ = new_constraint_spec(CT_CONTENTS);
$$->u.content.type = $2;
$$->u.content.encoding = NULL;
}
| kw_ENCODED kw_BY Value
{
if ($3->type != objectidentifiervalue)
lex_error_message("Non-OID used in ENCODED BY constraint");
$$ = new_constraint_spec(CT_CONTENTS);
$$->u.content.type = NULL;
$$->u.content.encoding = $3;
}
| kw_CONTAINING Type kw_ENCODED kw_BY Value
{
if ($5->type != objectidentifiervalue)
lex_error_message("Non-OID used in ENCODED BY constraint");
$$ = new_constraint_spec(CT_CONTENTS);
$$->u.content.type = $2;
$$->u.content.encoding = $5;
}
;
UserDefinedConstraint: kw_CONSTRAINED kw_BY '{' '}'
{
$$ = new_constraint_spec(CT_USER);
}
;
TaggedType : Tag tagenv Type
{
$$ = new_type(TTag);
$$->tag = $1;
$$->tag.tagenv = $2;
if($3->type == TTag && $2 == TE_IMPLICIT) {
$$->subtype = $3->subtype;
free($3);
} else
$$->subtype = $3;
}
;
Tag : '[' Class NUMBER ']'
{
$$.tagclass = $2;
$$.tagvalue = $3;
$$.tagenv = TE_EXPLICIT;
}
;
Class : /* */
{
$$ = ASN1_C_CONTEXT;
}
| kw_UNIVERSAL
{
$$ = ASN1_C_UNIV;
}
| kw_APPLICATION
{
$$ = ASN1_C_APPL;
}
| kw_PRIVATE
{
$$ = ASN1_C_PRIVATE;
}
;
tagenv : /* */
{
$$ = TE_EXPLICIT;
}
| kw_EXPLICIT
{
$$ = TE_EXPLICIT;
}
| kw_IMPLICIT
{
$$ = TE_IMPLICIT;
}
;
ValueAssignment : IDENTIFIER Type EEQUAL Value
{
Symbol *s;
s = addsym ($1);
s->stype = SValue;
s->value = $4;
generate_constant (s);
}
;
CharacterStringType: RestrictedCharactedStringType
;
RestrictedCharactedStringType: kw_GeneralString
{
$$ = new_tag(ASN1_C_UNIV, UT_GeneralString,
TE_EXPLICIT, new_type(TGeneralString));
}
| kw_TeletexString
{
$$ = new_tag(ASN1_C_UNIV, UT_TeletexString,
TE_EXPLICIT, new_type(TTeletexString));
}
| kw_UTF8String
{
$$ = new_tag(ASN1_C_UNIV, UT_UTF8String,
TE_EXPLICIT, new_type(TUTF8String));
}
| kw_PrintableString
{
$$ = new_tag(ASN1_C_UNIV, UT_PrintableString,
TE_EXPLICIT, new_type(TPrintableString));
}
| kw_VisibleString
{
$$ = new_tag(ASN1_C_UNIV, UT_VisibleString,
TE_EXPLICIT, new_type(TVisibleString));
}
| kw_IA5String
{
$$ = new_tag(ASN1_C_UNIV, UT_IA5String,
TE_EXPLICIT, new_type(TIA5String));
}
| kw_BMPString
{
$$ = new_tag(ASN1_C_UNIV, UT_BMPString,
TE_EXPLICIT, new_type(TBMPString));
}
| kw_UniversalString
{
$$ = new_tag(ASN1_C_UNIV, UT_UniversalString,
TE_EXPLICIT, new_type(TUniversalString));
}
;
ComponentTypeList: ComponentType
{
$$ = emalloc(sizeof(*$$));
ASN1_TAILQ_INIT($$);
ASN1_TAILQ_INSERT_HEAD($$, $1, members);
}
| ComponentTypeList ',' ComponentType
{
ASN1_TAILQ_INSERT_TAIL($1, $3, members);
$$ = $1;
}
| ComponentTypeList ',' ELLIPSIS
{
struct member *m = ecalloc(1, sizeof(*m));
m->name = estrdup("...");
m->gen_name = estrdup("asn1_ellipsis");
m->ellipsis = 1;
ASN1_TAILQ_INSERT_TAIL($1, m, members);
$$ = $1;
}
;
NamedType : IDENTIFIER Type
{
$$ = emalloc(sizeof(*$$));
$$->name = $1;
$$->gen_name = estrdup($1);
output_name ($$->gen_name);
$$->type = $2;
$$->ellipsis = 0;
}
;
ComponentType : NamedType
{
$$ = $1;
$$->optional = 0;
$$->defval = NULL;
}
| NamedType kw_OPTIONAL
{
$$ = $1;
$$->optional = 1;
$$->defval = NULL;
}
| NamedType kw_DEFAULT Value
{
$$ = $1;
$$->optional = 0;
$$->defval = $3;
}
;
NamedBitList : NamedBit
{
$$ = emalloc(sizeof(*$$));
ASN1_TAILQ_INIT($$);
ASN1_TAILQ_INSERT_HEAD($$, $1, members);
}
| NamedBitList ',' NamedBit
{
ASN1_TAILQ_INSERT_TAIL($1, $3, members);
$$ = $1;
}
;
NamedBit : IDENTIFIER '(' NUMBER ')'
{
$$ = emalloc(sizeof(*$$));
$$->name = $1;
$$->gen_name = estrdup($1);
output_name ($$->gen_name);
$$->val = $3;
$$->optional = 0;
$$->ellipsis = 0;
$$->type = NULL;
}
;
objid_opt : objid
| /* empty */ { $$ = NULL; }
;
objid : '{' objid_list '}'
{
$$ = $2;
}
;
objid_list : /* empty */
{
$$ = NULL;
}
| objid_element objid_list
{
if ($2) {
$$ = $2;
add_oid_to_tail($2, $1);
} else {
$$ = $1;
}
}
;
objid_element : IDENTIFIER '(' NUMBER ')'
{
$$ = new_objid($1, $3);
}
| IDENTIFIER
{
Symbol *s = addsym($1);
if(s->stype != SValue ||
s->value->type != objectidentifiervalue) {
lex_error_message("%s is not an object identifier\n",
s->name);
exit(1);
}
$$ = s->value->u.objectidentifiervalue;
}
| NUMBER
{
$$ = new_objid(NULL, $1);
}
;
Value : BuiltinValue
| ReferencedValue
;
BuiltinValue : BooleanValue
| CharacterStringValue
| IntegerValue
| ObjectIdentifierValue
| NullValue
;
ReferencedValue : DefinedValue
;
DefinedValue : Valuereference
;
Valuereference : IDENTIFIER
{
Symbol *s = addsym($1);
if(s->stype != SValue)
lex_error_message ("%s is not a value\n",
s->name);
else
$$ = s->value;
}
;
CharacterStringValue: STRING
{
$$ = emalloc(sizeof(*$$));
$$->type = stringvalue;
$$->u.stringvalue = $1;
}
;
BooleanValue : kw_TRUE
{
$$ = emalloc(sizeof(*$$));
$$->type = booleanvalue;
$$->u.booleanvalue = 0;
}
| kw_FALSE
{
$$ = emalloc(sizeof(*$$));
$$->type = booleanvalue;
$$->u.booleanvalue = 0;
}
;
IntegerValue : SignedNumber
{
$$ = emalloc(sizeof(*$$));
$$->type = integervalue;
$$->u.integervalue = $1;
}
;
SignedNumber : NUMBER
;
NullValue : kw_NULL
{
}
;
ObjectIdentifierValue: objid
{
$$ = emalloc(sizeof(*$$));
$$->type = objectidentifiervalue;
$$->u.objectidentifiervalue = $1;
}
;
%%
void
yyerror (const char *s)
{
lex_error_message ("%s\n", s);
}
static Type *
new_tag(int tagclass, int tagvalue, int tagenv, Type *oldtype)
{
Type *t;
if(oldtype->type == TTag && oldtype->tag.tagenv == TE_IMPLICIT) {
t = oldtype;
oldtype = oldtype->subtype; /* XXX */
} else
t = new_type (TTag);
t->tag.tagclass = tagclass;
t->tag.tagvalue = tagvalue;
t->tag.tagenv = tagenv;
t->subtype = oldtype;
return t;
}
static struct objid *
new_objid(const char *label, int value)
{
struct objid *s;
s = emalloc(sizeof(*s));
s->label = label;
s->value = value;
s->next = NULL;
return s;
}
static void
add_oid_to_tail(struct objid *head, struct objid *tail)
{
struct objid *o;
o = head;
while (o->next)
o = o->next;
o->next = tail;
}
static Type *
new_type (Typetype tt)
{
Type *t = ecalloc(1, sizeof(*t));
t->type = tt;
return t;
}
static struct constraint_spec *
new_constraint_spec(enum ctype ct)
{
struct constraint_spec *c = ecalloc(1, sizeof(*c));
c->ctype = ct;
return c;
}
static void fix_labels2(Type *t, const char *prefix);
static void fix_labels1(struct memhead *members, const char *prefix)
{
Member *m;
if(members == NULL)
return;
ASN1_TAILQ_FOREACH(m, members, members) {
if (asprintf(&m->label, "%s_%s", prefix, m->gen_name) < 0)
errx(1, "malloc");
if (m->label == NULL)
errx(1, "malloc");
if(m->type != NULL)
fix_labels2(m->type, m->label);
}
}
static void fix_labels2(Type *t, const char *prefix)
{
for(; t; t = t->subtype)
fix_labels1(t->members, prefix);
}
static void
fix_labels(Symbol *s)
{
char *p = NULL;
if (asprintf(&p, "choice_%s", s->gen_name) < 0 || p == NULL)
errx(1, "malloc");
fix_labels2(s->type, p);
free(p);
}