aboutsummaryrefslogtreecommitdiffstats
path: root/include/x509_ext.h
blob: 2e7370fbd3ee4bc0c8eae620b62fa55638074cac (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
/*************************************************
* X.509 Certificate Extensions Header File       *
* (C) 1999-2007 The Botan Project                *
*************************************************/

#ifndef BOTAN_X509_EXTENSIONS_H__
#define BOTAN_X509_EXTENSIONS_H__

#include <botan/asn1_int.h>
#include <botan/asn1_oid.h>
#include <botan/asn1_obj.h>
#include <botan/datastor.h>
#include <botan/enums.h>

namespace Botan {

/*************************************************
* X.509 Certificate Extension                    *
*************************************************/
class Certificate_Extension
   {
   public:
      OID oid_of() const;

      virtual Certificate_Extension* copy() const = 0;

      virtual void contents_to(Data_Store&, Data_Store&) const = 0;
      virtual std::string config_id() const = 0;
      virtual std::string oid_name() const = 0;

      virtual ~Certificate_Extension() {}
   protected:
      friend class Extensions;
      virtual bool should_encode() const { return true; }
      virtual MemoryVector<byte> encode_inner() const = 0;
      virtual void decode_inner(const MemoryRegion<byte>&) = 0;
   };

/*************************************************
* X.509 Certificate Extension List               *
*************************************************/
class Extensions : public ASN1_Object
   {
   public:
      void encode_into(class DER_Encoder&) const;
      void decode_from(class BER_Decoder&);

      void contents_to(Data_Store&, Data_Store&) const;

      void add(Certificate_Extension* extn)
         { extensions.push_back(extn); }

      Extensions& operator=(const Extensions& e)
         { return copy_this(e); }

      Extensions(bool st = true) : should_throw(st) {}
      Extensions(const Extensions& e) : ASN1_Object() { copy_this(e); }
      ~Extensions();
   private:
      Extensions& copy_this(const Extensions&);
      std::vector<Certificate_Extension*> extensions;
      bool should_throw;
   };

namespace Cert_Extension {

/*************************************************
* Basic Constraints Extension                    *
*************************************************/
class Basic_Constraints : public Certificate_Extension
   {
   public:
      Basic_Constraints* copy() const
         { return new Basic_Constraints(is_ca, path_limit); }

      Basic_Constraints(bool ca = false, u32bit limit = 0) :
         is_ca(ca), path_limit(limit) {}

      bool get_is_ca() const { return is_ca; }
      u32bit get_path_limit() const;
   private:
      std::string config_id() const { return "basic_constraints"; }
      std::string oid_name() const { return "X509v3.BasicConstraints"; }

      MemoryVector<byte> encode_inner() const;
      void decode_inner(const MemoryRegion<byte>&);
      void contents_to(Data_Store&, Data_Store&) const;

      bool is_ca;
      u32bit path_limit;
   };

/*************************************************
* Key Usage Constraints Extension                *
*************************************************/
class Key_Usage : public Certificate_Extension
   {
   public:
      Key_Usage* copy() const { return new Key_Usage(constraints); }

      Key_Usage(Key_Constraints c = NO_CONSTRAINTS) : constraints(c) {}

      Key_Constraints get_constraints() const { return constraints; }
   private:
      std::string config_id() const { return "key_usage"; }
      std::string oid_name() const { return "X509v3.KeyUsage"; }

      bool should_encode() const { return (constraints != NO_CONSTRAINTS); }
      MemoryVector<byte> encode_inner() const;
      void decode_inner(const MemoryRegion<byte>&);
      void contents_to(Data_Store&, Data_Store&) const;

      Key_Constraints constraints;
   };

/*************************************************
* Subject Key Identifier Extension               *
*************************************************/
class Subject_Key_ID : public Certificate_Extension
   {
   public:
      Subject_Key_ID* copy() const { return new Subject_Key_ID(key_id); }

      Subject_Key_ID() {}
      Subject_Key_ID(const MemoryRegion<byte>&);

      MemoryVector<byte> get_key_id() const { return key_id; }
   private:
      std::string config_id() const { return "subject_key_id"; }
      std::string oid_name() const { return "X509v3.SubjectKeyIdentifier"; }

      bool should_encode() const { return (key_id.size() > 0); }
      MemoryVector<byte> encode_inner() const;
      void decode_inner(const MemoryRegion<byte>&);
      void contents_to(Data_Store&, Data_Store&) const;

      MemoryVector<byte> key_id;
   };

/*************************************************
* Authority Key Identifier Extension             *
*************************************************/
class Authority_Key_ID : public Certificate_Extension
   {
   public:
      Authority_Key_ID* copy() const { return new Authority_Key_ID(key_id); }

      Authority_Key_ID() {}
      Authority_Key_ID(const MemoryRegion<byte>& k) : key_id(k) {}

      MemoryVector<byte> get_key_id() const { return key_id; }
   private:
      std::string config_id() const { return "authority_key_id"; }
      std::string oid_name() const { return "X509v3.AuthorityKeyIdentifier"; }

      bool should_encode() const { return (key_id.size() > 0); }
      MemoryVector<byte> encode_inner() const;
      void decode_inner(const MemoryRegion<byte>&);
      void contents_to(Data_Store&, Data_Store&) const;

      MemoryVector<byte> key_id;
   };

/*************************************************
* Alternative Name Extension Base Class          *
*************************************************/
class Alternative_Name : public Certificate_Extension
   {
   public:
      AlternativeName get_alt_name() const { return alt_name; }

   protected:
      Alternative_Name(const AlternativeName&,
                       const std::string&, const std::string&);

      Alternative_Name(const std::string&, const std::string&);
   private:
      std::string config_id() const { return config_name_str; }
      std::string oid_name() const { return oid_name_str; }

      bool should_encode() const { return alt_name.has_items(); }
      MemoryVector<byte> encode_inner() const;
      void decode_inner(const MemoryRegion<byte>&);
      void contents_to(Data_Store&, Data_Store&) const;

      std::string config_name_str, oid_name_str;
      AlternativeName alt_name;
   };

/*************************************************
* Subject Alternative Name Extension             *
*************************************************/
class Subject_Alternative_Name : public Alternative_Name
   {
   public:
      Subject_Alternative_Name* copy() const
         { return new Subject_Alternative_Name(get_alt_name()); }

      Subject_Alternative_Name(const AlternativeName& = AlternativeName());
   };

/*************************************************
* Issuer Alternative Name Extension              *
*************************************************/
class Issuer_Alternative_Name : public Alternative_Name
   {
   public:
      Issuer_Alternative_Name* copy() const
         { return new Issuer_Alternative_Name(get_alt_name()); }

      Issuer_Alternative_Name(const AlternativeName& = AlternativeName());
   };

/*************************************************
* Extended Key Usage Extension                   *
*************************************************/
class Extended_Key_Usage : public Certificate_Extension
   {
   public:
      Extended_Key_Usage* copy() const { return new Extended_Key_Usage(oids); }

      Extended_Key_Usage() {}
      Extended_Key_Usage(const std::vector<OID>& o) : oids(o) {}

      std::vector<OID> get_oids() const { return oids; }
   private:
      std::string config_id() const { return "extended_key_usage"; }
      std::string oid_name() const { return "X509v3.ExtendedKeyUsage"; }

      bool should_encode() const { return (oids.size() > 0); }
      MemoryVector<byte> encode_inner() const;
      void decode_inner(const MemoryRegion<byte>&);
      void contents_to(Data_Store&, Data_Store&) const;

      std::vector<OID> oids;
   };

/*************************************************
* Certificate Policies Extension                 *
*************************************************/
class Certificate_Policies : public Certificate_Extension
   {
   public:
      Certificate_Policies* copy() const
         { return new Certificate_Policies(oids); }

      Certificate_Policies() {}
      Certificate_Policies(const std::vector<OID>& o) : oids(o) {}

      std::vector<OID> get_oids() const { return oids; }
   private:
      std::string config_id() const { return "policy_info"; }
      std::string oid_name() const { return "X509v3.CertificatePolicies"; }

      bool should_encode() const { return (oids.size() > 0); }
      MemoryVector<byte> encode_inner() const;
      void decode_inner(const MemoryRegion<byte>&);
      void contents_to(Data_Store&, Data_Store&) const;

      std::vector<OID> oids;
   };

/*************************************************
* CRL Number Extension                           *
*************************************************/
class CRL_Number : public Certificate_Extension
   {
   public:
      CRL_Number* copy() const;

      CRL_Number() : has_value(false), crl_number(0) {}
      CRL_Number(u32bit n) : has_value(true), crl_number(n) {}

      u32bit get_crl_number() const;
   private:
      std::string config_id() const { return "crl_number"; }
      std::string oid_name() const { return "X509v3.CRLNumber"; }

      bool should_encode() const { return has_value; }
      MemoryVector<byte> encode_inner() const;
      void decode_inner(const MemoryRegion<byte>&);
      void contents_to(Data_Store&, Data_Store&) const;

      bool has_value;
      u32bit crl_number;
   };

/*************************************************
* CRL Entry Reason Code Extension                *
*************************************************/
class CRL_ReasonCode : public Certificate_Extension
   {
   public:
      CRL_ReasonCode* copy() const { return new CRL_ReasonCode(reason); }

      CRL_ReasonCode(CRL_Code r = UNSPECIFIED) : reason(r) {}

      CRL_Code get_reason() const { return reason; }
   private:
      std::string config_id() const { return "crl_reason"; }
      std::string oid_name() const { return "X509v3.ReasonCode"; }

      bool should_encode() const { return (reason != UNSPECIFIED); }
      MemoryVector<byte> encode_inner() const;
      void decode_inner(const MemoryRegion<byte>&);
      void contents_to(Data_Store&, Data_Store&) const;

      CRL_Code reason;
   };

}

}

#endif