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Commit | Line | Data |
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4f22f405 | 1 | /* |
924663c3 | 2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. |
58964a49 | 3 | * |
365a2d99 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
4f22f405 RS |
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 | |
58964a49 RE |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
b39fc560 | 11 | #include "internal/cryptlib.h" |
ec577822 | 12 | #include <openssl/asn1.h> |
b9395187 | 13 | #include <openssl/asn1t.h> |
924663c3 | 14 | #include "crypto/asn1.h" |
58964a49 | 15 | |
6343829a | 16 | int ASN1_TYPE_set_octetstring(ASN1_TYPE *a, unsigned char *data, int len) |
0f113f3e MC |
17 | { |
18 | ASN1_STRING *os; | |
19 | ||
f422a514 | 20 | if ((os = ASN1_OCTET_STRING_new()) == NULL) |
26a7d938 | 21 | return 0; |
f422a514 DSH |
22 | if (!ASN1_OCTET_STRING_set(os, data, len)) { |
23 | ASN1_OCTET_STRING_free(os); | |
0f113f3e MC |
24 | return 0; |
25 | } | |
26 | ASN1_TYPE_set(a, V_ASN1_OCTET_STRING, os); | |
208fb891 | 27 | return 1; |
0f113f3e | 28 | } |
58964a49 | 29 | |
6b691a5c | 30 | /* int max_len: for returned value */ |
08275a29 | 31 | int ASN1_TYPE_get_octetstring(const ASN1_TYPE *a, unsigned char *data, int max_len) |
0f113f3e MC |
32 | { |
33 | int ret, num; | |
17ebf85a | 34 | const unsigned char *p; |
0f113f3e MC |
35 | |
36 | if ((a->type != V_ASN1_OCTET_STRING) || (a->value.octet_string == NULL)) { | |
9311d0c4 | 37 | ERR_raise(ERR_LIB_ASN1, ASN1_R_DATA_IS_WRONG); |
26a7d938 | 38 | return -1; |
0f113f3e | 39 | } |
17ebf85a | 40 | p = ASN1_STRING_get0_data(a->value.octet_string); |
f422a514 | 41 | ret = ASN1_STRING_length(a->value.octet_string); |
0f113f3e MC |
42 | if (ret < max_len) |
43 | num = ret; | |
44 | else | |
45 | num = max_len; | |
46 | memcpy(data, p, num); | |
26a7d938 | 47 | return ret; |
0f113f3e | 48 | } |
58964a49 | 49 | |
924663c3 JZ |
50 | static ossl_inline void asn1_type_init_oct(ASN1_OCTET_STRING *oct, |
51 | unsigned char *data, int len) | |
52 | { | |
53 | oct->data = data; | |
54 | oct->type = V_ASN1_OCTET_STRING; | |
55 | oct->length = len; | |
56 | oct->flags = 0; | |
57 | } | |
58 | ||
59 | static int asn1_type_get_int_oct(ASN1_OCTET_STRING *oct, int32_t anum, | |
60 | long *num, unsigned char *data, int max_len) | |
61 | { | |
62 | int ret = ASN1_STRING_length(oct), n; | |
63 | ||
64 | if (num != NULL) | |
65 | *num = anum; | |
66 | ||
67 | if (max_len > ret) | |
68 | n = ret; | |
69 | else | |
70 | n = max_len; | |
71 | ||
72 | if (data != NULL) | |
73 | memcpy(data, ASN1_STRING_get0_data(oct), n); | |
74 | ||
75 | return ret; | |
76 | } | |
77 | ||
b9395187 | 78 | typedef struct { |
6a32a3c0 | 79 | int32_t num; |
b9395187 DSH |
80 | ASN1_OCTET_STRING *oct; |
81 | } asn1_int_oct; | |
0f113f3e | 82 | |
b9395187 | 83 | ASN1_SEQUENCE(asn1_int_oct) = { |
9612e157 | 84 | ASN1_EMBED(asn1_int_oct, num, INT32), |
b9395187 | 85 | ASN1_SIMPLE(asn1_int_oct, oct, ASN1_OCTET_STRING) |
df2ee0e2 | 86 | } static_ASN1_SEQUENCE_END(asn1_int_oct) |
0f113f3e | 87 | |
b9395187 | 88 | DECLARE_ASN1_ITEM(asn1_int_oct) |
0f113f3e | 89 | |
b9395187 DSH |
90 | int ASN1_TYPE_set_int_octetstring(ASN1_TYPE *a, long num, unsigned char *data, |
91 | int len) | |
92 | { | |
93 | asn1_int_oct atmp; | |
94 | ASN1_OCTET_STRING oct; | |
95 | ||
96 | atmp.num = num; | |
97 | atmp.oct = &oct; | |
924663c3 | 98 | asn1_type_init_oct(&oct, data, len); |
b9395187 DSH |
99 | |
100 | if (ASN1_TYPE_pack_sequence(ASN1_ITEM_rptr(asn1_int_oct), &atmp, &a)) | |
101 | return 1; | |
102 | return 0; | |
0f113f3e MC |
103 | } |
104 | ||
08275a29 | 105 | int ASN1_TYPE_get_int_octetstring(const ASN1_TYPE *a, long *num, |
0f113f3e MC |
106 | unsigned char *data, int max_len) |
107 | { | |
b9395187 | 108 | asn1_int_oct *atmp = NULL; |
924663c3 | 109 | int ret = -1; |
0f113f3e MC |
110 | |
111 | if ((a->type != V_ASN1_SEQUENCE) || (a->value.sequence == NULL)) { | |
112 | goto err; | |
113 | } | |
0f113f3e | 114 | |
b9395187 | 115 | atmp = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(asn1_int_oct), a); |
0f113f3e | 116 | |
b9395187 | 117 | if (atmp == NULL) |
0f113f3e MC |
118 | goto err; |
119 | ||
924663c3 | 120 | ret = asn1_type_get_int_oct(atmp->oct, atmp->num, num, data, max_len); |
0f113f3e | 121 | |
b9395187 | 122 | if (ret == -1) { |
0f113f3e | 123 | err: |
9311d0c4 | 124 | ERR_raise(ERR_LIB_ASN1, ASN1_R_DATA_IS_WRONG); |
0f113f3e | 125 | } |
b9395187 DSH |
126 | M_ASN1_free_of(atmp, asn1_int_oct); |
127 | return ret; | |
0f113f3e | 128 | } |
924663c3 JZ |
129 | |
130 | typedef struct { | |
131 | ASN1_OCTET_STRING *oct; | |
132 | int32_t num; | |
133 | } asn1_oct_int; | |
134 | ||
135 | /* | |
136 | * Defined in RFC 5084 - | |
137 | * Section 2. "Content-Authenticated Encryption Algorithms" | |
138 | */ | |
139 | ASN1_SEQUENCE(asn1_oct_int) = { | |
140 | ASN1_SIMPLE(asn1_oct_int, oct, ASN1_OCTET_STRING), | |
141 | ASN1_EMBED(asn1_oct_int, num, INT32) | |
142 | } static_ASN1_SEQUENCE_END(asn1_oct_int) | |
143 | ||
144 | DECLARE_ASN1_ITEM(asn1_oct_int) | |
145 | ||
adf7e6d1 SL |
146 | int ossl_asn1_type_set_octetstring_int(ASN1_TYPE *a, long num, |
147 | unsigned char *data, int len) | |
924663c3 JZ |
148 | { |
149 | asn1_oct_int atmp; | |
150 | ASN1_OCTET_STRING oct; | |
151 | ||
152 | atmp.num = num; | |
153 | atmp.oct = &oct; | |
154 | asn1_type_init_oct(&oct, data, len); | |
155 | ||
156 | if (ASN1_TYPE_pack_sequence(ASN1_ITEM_rptr(asn1_oct_int), &atmp, &a)) | |
157 | return 1; | |
158 | return 0; | |
159 | } | |
160 | ||
adf7e6d1 SL |
161 | int ossl_asn1_type_get_octetstring_int(const ASN1_TYPE *a, long *num, |
162 | unsigned char *data, int max_len) | |
924663c3 JZ |
163 | { |
164 | asn1_oct_int *atmp = NULL; | |
165 | int ret = -1; | |
166 | ||
167 | if ((a->type != V_ASN1_SEQUENCE) || (a->value.sequence == NULL)) | |
168 | goto err; | |
169 | ||
170 | atmp = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(asn1_oct_int), a); | |
171 | ||
172 | if (atmp == NULL) | |
173 | goto err; | |
174 | ||
175 | ret = asn1_type_get_int_oct(atmp->oct, atmp->num, num, data, max_len); | |
176 | ||
177 | if (ret == -1) { | |
178 | err: | |
9311d0c4 | 179 | ERR_raise(ERR_LIB_ASN1, ASN1_R_DATA_IS_WRONG); |
924663c3 JZ |
180 | } |
181 | M_ASN1_free_of(atmp, asn1_oct_int); | |
182 | return ret; | |
183 | } |