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asn1.h
1
20#ifndef WINPR_ASN1_H_
21#define WINPR_ASN1_H_
22
23#include <winpr/winpr.h>
24#include <winpr/wtypes.h>
25#include <winpr/stream.h>
26
27#define ER_TAG_MASK 0x1F
28
29enum
30{
31 ER_TAG_BOOLEAN = 0x01,
32 ER_TAG_INTEGER = 0x02,
33 ER_TAG_BIT_STRING = 0x03,
34 ER_TAG_OCTET_STRING = 0x04,
35 ER_TAG_NULL = 0x05,
36 ER_TAG_OBJECT_IDENTIFIER = 0x06,
37 ER_TAG_ENUMERATED = 0x0A,
38 ER_TAG_UTF8STRING = 0x0C,
39 ER_TAG_PRINTABLE_STRING = 0x13,
40 ER_TAG_IA5STRING = 0x16,
41 ER_TAG_UTCTIME = 0x17,
42 ER_TAG_GENERAL_STRING = 0x1B,
43 ER_TAG_GENERALIZED_TIME = 0x18,
44
45 ER_TAG_APP = 0x60,
46 ER_TAG_SEQUENCE = 0x30,
47 ER_TAG_SEQUENCE_OF = 0x30,
48 ER_TAG_SET = 0x31,
49 ER_TAG_SET_OF = 0x31,
50
51 ER_TAG_CONTEXTUAL = 0xA0
52};
53
55typedef enum
56{
57 WINPR_ASN1_BER,
58 WINPR_ASN1_DER
59} WinPrAsn1EncodingRule;
60
61typedef struct WinPrAsn1Encoder WinPrAsn1Encoder;
62
63struct WinPrAsn1Decoder
64{
65 WinPrAsn1EncodingRule encoding;
66 wStream source;
67};
68
69typedef struct WinPrAsn1Decoder WinPrAsn1Decoder;
70
76static inline WinPrAsn1Decoder WinPrAsn1Decoder_init(void)
77{
78 const wStream stream = Stream_Init();
79 const WinPrAsn1Decoder empty = { WINPR_ASN1_BER, stream };
80 return empty;
81}
82
83typedef BYTE WinPrAsn1_tag;
84typedef BYTE WinPrAsn1_tagId;
85typedef BOOL WinPrAsn1_BOOL;
86typedef INT32 WinPrAsn1_INTEGER;
87typedef INT32 WinPrAsn1_ENUMERATED;
88typedef char* WinPrAsn1_STRING;
89typedef char* WinPrAsn1_IA5STRING;
90typedef struct
91{
92 size_t len;
93 BYTE* data;
94} WinPrAsn1_MemoryChunk;
95
96typedef WinPrAsn1_MemoryChunk WinPrAsn1_OID;
97typedef WinPrAsn1_MemoryChunk WinPrAsn1_OctetString;
98
99typedef struct
100{
101 UINT16 year;
102 UINT8 month;
103 UINT8 day;
104 UINT8 hour;
105 UINT8 minute;
106 UINT8 second;
107 char tz;
108} WinPrAsn1_UTCTIME;
109
110#ifdef __cplusplus
111extern "C"
112{
113#endif /* __cplusplus */
114
115 WINPR_API void WinPrAsn1FreeOID(WinPrAsn1_OID* poid);
116 WINPR_API void WinPrAsn1FreeOctetString(WinPrAsn1_OctetString* octets);
117
118 /* decoder functions */
119
120 WINPR_API void WinPrAsn1Decoder_Init(WinPrAsn1Decoder* dec, WinPrAsn1EncodingRule encoding,
121 wStream* source);
122 WINPR_API void WinPrAsn1Decoder_InitMem(WinPrAsn1Decoder* dec, WinPrAsn1EncodingRule encoding,
123 const BYTE* source, size_t len);
124
125 WINPR_API BOOL WinPrAsn1DecPeekTag(WinPrAsn1Decoder* dec, WinPrAsn1_tag* tag);
126 WINPR_API size_t WinPrAsn1DecReadTagAndLen(WinPrAsn1Decoder* dec, WinPrAsn1_tag* tag,
127 size_t* len);
128 WINPR_API size_t WinPrAsn1DecPeekTagAndLen(WinPrAsn1Decoder* dec, WinPrAsn1_tag* tag,
129 size_t* len);
130 WINPR_API size_t WinPrAsn1DecReadTagLenValue(WinPrAsn1Decoder* dec, WinPrAsn1_tag* tag,
131 size_t* len, WinPrAsn1Decoder* value);
132 WINPR_API size_t WinPrAsn1DecReadBoolean(WinPrAsn1Decoder* dec, WinPrAsn1_BOOL* target);
133 WINPR_API size_t WinPrAsn1DecReadInteger(WinPrAsn1Decoder* dec, WinPrAsn1_INTEGER* target);
134 WINPR_API size_t WinPrAsn1DecReadEnumerated(WinPrAsn1Decoder* dec,
135 WinPrAsn1_ENUMERATED* target);
136 WINPR_API size_t WinPrAsn1DecReadOID(WinPrAsn1Decoder* dec, WinPrAsn1_OID* target,
137 BOOL allocate);
138 WINPR_API size_t WinPrAsn1DecReadOctetString(WinPrAsn1Decoder* dec,
139 WinPrAsn1_OctetString* target, BOOL allocate);
140 WINPR_API size_t WinPrAsn1DecReadIA5String(WinPrAsn1Decoder* dec, WinPrAsn1_IA5STRING* target);
141 WINPR_API size_t WinPrAsn1DecReadGeneralString(WinPrAsn1Decoder* dec, WinPrAsn1_STRING* target);
142 WINPR_API size_t WinPrAsn1DecReadUtcTime(WinPrAsn1Decoder* dec, WinPrAsn1_UTCTIME* target);
143 WINPR_API size_t WinPrAsn1DecReadNull(WinPrAsn1Decoder* dec);
144
145 WINPR_API size_t WinPrAsn1DecReadApp(WinPrAsn1Decoder* dec, WinPrAsn1_tagId* tagId,
146 WinPrAsn1Decoder* setDec);
147 WINPR_API size_t WinPrAsn1DecReadSequence(WinPrAsn1Decoder* dec, WinPrAsn1Decoder* seqDec);
148 WINPR_API size_t WinPrAsn1DecReadSet(WinPrAsn1Decoder* dec, WinPrAsn1Decoder* setDec);
149
150 WINPR_API size_t WinPrAsn1DecReadContextualTag(WinPrAsn1Decoder* dec, WinPrAsn1_tagId* tagId,
151 WinPrAsn1Decoder* ctxtDec);
152 WINPR_API size_t WinPrAsn1DecPeekContextualTag(WinPrAsn1Decoder* dec, WinPrAsn1_tagId* tagId,
153 WinPrAsn1Decoder* ctxtDec);
154
155 WINPR_API size_t WinPrAsn1DecReadContextualBool(WinPrAsn1Decoder* dec, WinPrAsn1_tagId tagId,
156 BOOL* error, WinPrAsn1_BOOL* target);
157 WINPR_API size_t WinPrAsn1DecReadContextualInteger(WinPrAsn1Decoder* dec, WinPrAsn1_tagId tagId,
158 BOOL* error, WinPrAsn1_INTEGER* target);
159 WINPR_API size_t WinPrAsn1DecReadContextualOID(WinPrAsn1Decoder* dec, WinPrAsn1_tagId tagId,
160 BOOL* error, WinPrAsn1_OID* target,
161 BOOL allocate);
162 WINPR_API size_t WinPrAsn1DecReadContextualOctetString(WinPrAsn1Decoder* dec,
163 WinPrAsn1_tagId tagId, BOOL* error,
164 WinPrAsn1_OctetString* target,
165 BOOL allocate);
166 WINPR_API size_t WinPrAsn1DecReadContextualSequence(WinPrAsn1Decoder* dec,
167 WinPrAsn1_tagId tagId, BOOL* error,
168 WinPrAsn1Decoder* target);
169 WINPR_API wStream WinPrAsn1DecGetStream(WinPrAsn1Decoder* dec);
170
171 /* encoder functions */
172
173 WINPR_API void WinPrAsn1Encoder_Free(WinPrAsn1Encoder** penc);
174 WINPR_API WinPrAsn1Encoder* WinPrAsn1Encoder_New(WinPrAsn1EncodingRule encoding);
175
176 WINPR_API void WinPrAsn1Encoder_Reset(WinPrAsn1Encoder* enc);
177
178 WINPR_API BOOL WinPrAsn1EncAppContainer(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId);
179 WINPR_API BOOL WinPrAsn1EncSeqContainer(WinPrAsn1Encoder* enc);
180 WINPR_API BOOL WinPrAsn1EncContextualSeqContainer(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId);
181 WINPR_API BOOL WinPrAsn1EncSetContainer(WinPrAsn1Encoder* enc);
182 WINPR_API BOOL WinPrAsn1EncContextualSetContainer(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId);
183 WINPR_API BOOL WinPrAsn1EncContextualContainer(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId);
184 WINPR_API BOOL WinPrAsn1EncOctetStringContainer(WinPrAsn1Encoder* enc);
185 WINPR_API BOOL WinPrAsn1EncContextualOctetStringContainer(WinPrAsn1Encoder* enc,
186 WinPrAsn1_tagId tagId);
187 WINPR_API size_t WinPrAsn1EncEndContainer(WinPrAsn1Encoder* enc);
188
189 WINPR_API size_t WinPrAsn1EncRawContent(WinPrAsn1Encoder* enc, const WinPrAsn1_MemoryChunk* c);
190 WINPR_API size_t WinPrAsn1EncContextualRawContent(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId,
191 const WinPrAsn1_MemoryChunk* c);
192 WINPR_API size_t WinPrAsn1EncInteger(WinPrAsn1Encoder* enc, WinPrAsn1_INTEGER integer);
193 WINPR_API size_t WinPrAsn1EncContextualInteger(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId,
194 WinPrAsn1_INTEGER integer);
195 WINPR_API size_t WinPrAsn1EncBoolean(WinPrAsn1Encoder* enc, WinPrAsn1_BOOL b);
196 WINPR_API size_t WinPrAsn1EncContextualBoolean(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId,
197 WinPrAsn1_BOOL b);
198 WINPR_API size_t WinPrAsn1EncEnumerated(WinPrAsn1Encoder* enc, WinPrAsn1_ENUMERATED e);
199 WINPR_API size_t WinPrAsn1EncContextualEnumerated(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId,
200 WinPrAsn1_ENUMERATED e);
201
202 WINPR_API size_t WinPrAsn1EncOID(WinPrAsn1Encoder* enc, const WinPrAsn1_OID* oid);
203 WINPR_API size_t WinPrAsn1EncContextualOID(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId,
204 const WinPrAsn1_OID* oid);
205 WINPR_API size_t WinPrAsn1EncOctetString(WinPrAsn1Encoder* enc,
206 const WinPrAsn1_OctetString* octetstring);
207 WINPR_API size_t WinPrAsn1EncContextualOctetString(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId,
208 const WinPrAsn1_OctetString* octetstring);
209 WINPR_API size_t WinPrAsn1EncIA5String(WinPrAsn1Encoder* enc, WinPrAsn1_IA5STRING ia5);
210 WINPR_API size_t WinPrAsn1EncGeneralString(WinPrAsn1Encoder* enc, WinPrAsn1_STRING str);
211 WINPR_API size_t WinPrAsn1EncContextualIA5String(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId,
212 WinPrAsn1_IA5STRING ia5);
213 WINPR_API size_t WinPrAsn1EncUtcTime(WinPrAsn1Encoder* enc, const WinPrAsn1_UTCTIME* utc);
214 WINPR_API size_t WinPrAsn1EncContextualUtcTime(WinPrAsn1Encoder* enc, WinPrAsn1_tagId tagId,
215 const WinPrAsn1_UTCTIME* utc);
216
217 WINPR_API BOOL WinPrAsn1EncStreamSize(WinPrAsn1Encoder* enc, size_t* s);
218 WINPR_API BOOL WinPrAsn1EncToStream(WinPrAsn1Encoder* enc, wStream* s);
219
220#ifdef __cplusplus
221}
222#endif /* __cplusplus */
223
224#endif /* WINPR_ASN1_H_ */
WinPrAsn1_MemoryChunk
Definition asn1.h:91
WinPrAsn1_UTCTIME
Definition asn1.h:100