xref: /freebsd/crypto/heimdal/lib/asn1/symbol.h (revision 1b748759)
1 /*
2  * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
3  * (Royal Institute of Technology, Stockholm, Sweden).
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * 3. Neither the name of the Institute nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 /* $Id$ */
35 
36 #ifndef _SYMBOL_H
37 #define _SYMBOL_H
38 
39 #include "asn1_queue.h"
40 
41 enum typetype {
42     TBitString,
43     TBoolean,
44     TChoice,
45     TEnumerated,
46     TGeneralString,
47     TTeletexString,
48     TGeneralizedTime,
49     TIA5String,
50     TInteger,
51     TNull,
52     TOID,
53     TOctetString,
54     TPrintableString,
55     TSequence,
56     TSequenceOf,
57     TSet,
58     TSetOf,
59     TTag,
60     TType,
61     TUTCTime,
62     TUTF8String,
63     TBMPString,
64     TUniversalString,
65     TVisibleString
66 };
67 
68 typedef enum typetype Typetype;
69 
70 struct type;
71 
72 struct value {
73     enum { booleanvalue,
74 	   nullvalue,
75 	   integervalue,
76 	   stringvalue,
77 	   objectidentifiervalue
78     } type;
79     union {
80 	int booleanvalue;
81 	int64_t integervalue;
82 	char *stringvalue;
83 	struct objid *objectidentifiervalue;
84     } u;
85 };
86 
87 struct member {
88     char *name;
89     char *gen_name;
90     char *label;
91     int val;
92     int optional;
93     int ellipsis;
94     struct type *type;
95     ASN1_TAILQ_ENTRY(member) members;
96     struct value *defval;
97 };
98 
99 typedef struct member Member;
100 
101 ASN1_TAILQ_HEAD(memhead, member);
102 
103 struct symbol;
104 
105 struct tagtype {
106     int tagclass;
107     int tagvalue;
108     enum { TE_IMPLICIT, TE_EXPLICIT } tagenv;
109 };
110 
111 struct range {
112     /*
113      * We can't represent unsigned 64-bit ranges because max might be
114      * negative...
115      */
116     int64_t min;
117     int64_t max;
118 };
119 
120 enum ctype { CT_CONTENTS, CT_USER } ;
121 
122 struct constraint_spec;
123 
124 struct type {
125     Typetype type;
126     struct memhead *members;
127     struct symbol *symbol;
128     struct type *subtype;
129     struct tagtype tag;
130     struct range *range;
131     struct constraint_spec *constraint;
132 };
133 
134 typedef struct type Type;
135 
136 struct constraint_spec {
137     enum ctype ctype;
138     union {
139 	struct {
140 	    Type *type;
141 	    struct value *encoding;
142 	} content;
143     } u;
144 };
145 
146 struct objid {
147     const char *label;
148     int value;
149     struct objid *next;
150 };
151 
152 struct symbol {
153     char *name;
154     char *gen_name;
155     enum { SUndefined, SValue, Stype } stype;
156     struct value *value;
157     Type *type;
158 };
159 
160 typedef struct symbol Symbol;
161 
162 void initsym (void);
163 Symbol *addsym (char *);
164 void output_name (char *);
165 int checkundefined(void);
166 #endif
167