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1d39620b RL |
1 | /* |
2 | * Copyright 2020 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use | |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
8 | */ | |
9 | ||
10 | #include <openssl/bn.h> | |
11 | #include "internal/packet.h" | |
12 | ||
13 | /* | |
14 | * NOTE: X.690 numbers the identifier octet bits 1 to 8. | |
15 | * We use the same numbering in comments here. | |
16 | */ | |
17 | ||
18 | /* Well known primitive tags */ | |
19 | ||
20 | /* | |
21 | * DER UNIVERSAL tags, occupying bits 1-5 in the DER identifier byte | |
22 | * These are only valid for the UNIVERSAL class. With the other classes, | |
23 | * these bits have a different meaning. | |
24 | */ | |
25 | #define DER_P_EOC 0 /* BER End Of Contents tag */ | |
26 | #define DER_P_BOOLEAN 1 | |
27 | #define DER_P_INTEGER 2 | |
28 | #define DER_P_BIT_STRING 3 | |
29 | #define DER_P_OCTET_STRING 4 | |
30 | #define DER_P_NULL 5 | |
31 | #define DER_P_OBJECT 6 | |
32 | #define DER_P_OBJECT_DESCRIPTOR 7 | |
33 | #define DER_P_EXTERNAL 8 | |
34 | #define DER_P_REAL 9 | |
35 | #define DER_P_ENUMERATED 10 | |
36 | #define DER_P_UTF8STRING 12 | |
37 | #define DER_P_SEQUENCE 16 | |
38 | #define DER_P_SET 17 | |
39 | #define DER_P_NUMERICSTRING 18 | |
40 | #define DER_P_PRINTABLESTRING 19 | |
41 | #define DER_P_T61STRING 20 | |
42 | #define DER_P_VIDEOTEXSTRING 21 | |
43 | #define DER_P_IA5STRING 22 | |
44 | #define DER_P_UTCTIME 23 | |
45 | #define DER_P_GENERALIZEDTIME 24 | |
46 | #define DER_P_GRAPHICSTRING 25 | |
47 | #define DER_P_ISO64STRING 26 | |
48 | #define DER_P_GENERALSTRING 27 | |
49 | #define DER_P_UNIVERSALSTRING 28 | |
50 | #define DER_P_BMPSTRING 30 | |
51 | ||
52 | /* DER Flags, occupying bit 6 in the DER identifier byte */ | |
53 | #define DER_F_PRIMITIVE 0x00 | |
54 | #define DER_F_CONSTRUCTED 0x20 | |
55 | ||
56 | /* DER classes tags, occupying bits 7-8 in the DER identifier byte */ | |
57 | #define DER_C_UNIVERSAL 0x00 | |
58 | #define DER_C_APPLICATION 0x40 | |
59 | #define DER_C_CONTEXT 0x80 | |
60 | #define DER_C_PRIVATE 0xC0 | |
61 | ||
62 | /* | |
63 | * Run-time constructors. | |
64 | * | |
65 | * They all construct DER backwards, so care should be taken to use them | |
66 | * that way. | |
67 | */ | |
68 | ||
69 | /* This can be used for all items that don't have a context */ | |
70 | #define DER_NO_CONTEXT -1 | |
71 | ||
72 | int DER_w_precompiled(WPACKET *pkt, int tag, | |
73 | const unsigned char *precompiled, size_t precompiled_n); | |
74 | ||
75 | int DER_w_boolean(WPACKET *pkt, int tag, int b); | |
76 | int DER_w_ulong(WPACKET *pkt, int tag, unsigned long v); | |
77 | int DER_w_bn(WPACKET *pkt, int tag, const BIGNUM *v); | |
78 | int DER_w_null(WPACKET *pkt, int tag); | |
79 | ||
80 | /* | |
81 | * All constructors for constructed elements have a begin and a end function | |
82 | */ | |
83 | int DER_w_begin_sequence(WPACKET *pkt, int tag); | |
84 | int DER_w_end_sequence(WPACKET *pkt, int tag); |