[331] | 1 | /*
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| 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include "internal/cryptlib.h"
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| 12 | #include <openssl/asn1t.h>
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| 13 | #include <openssl/objects.h>
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| 14 | #include "asn1_locl.h"
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| 15 |
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| 16 | int ASN1_TYPE_get(const ASN1_TYPE *a)
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| 17 | {
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| 18 | if ((a->value.ptr != NULL) || (a->type == V_ASN1_NULL))
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| 19 | return (a->type);
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| 20 | else
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| 21 | return (0);
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| 22 | }
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| 23 |
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| 24 | void ASN1_TYPE_set(ASN1_TYPE *a, int type, void *value)
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| 25 | {
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| 26 | if (a->value.ptr != NULL) {
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| 27 | ASN1_TYPE **tmp_a = &a;
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| 28 | asn1_primitive_free((ASN1_VALUE **)tmp_a, NULL, 0);
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| 29 | }
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| 30 | a->type = type;
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| 31 | if (type == V_ASN1_BOOLEAN)
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| 32 | a->value.boolean = value ? 0xff : 0;
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| 33 | else
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| 34 | a->value.ptr = value;
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| 35 | }
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| 36 |
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| 37 | int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value)
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| 38 | {
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| 39 | if (!value || (type == V_ASN1_BOOLEAN)) {
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| 40 | void *p = (void *)value;
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| 41 | ASN1_TYPE_set(a, type, p);
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| 42 | } else if (type == V_ASN1_OBJECT) {
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| 43 | ASN1_OBJECT *odup;
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| 44 | odup = OBJ_dup(value);
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| 45 | if (!odup)
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| 46 | return 0;
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| 47 | ASN1_TYPE_set(a, type, odup);
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| 48 | } else {
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| 49 | ASN1_STRING *sdup;
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| 50 | sdup = ASN1_STRING_dup(value);
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| 51 | if (!sdup)
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| 52 | return 0;
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| 53 | ASN1_TYPE_set(a, type, sdup);
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| 54 | }
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| 55 | return 1;
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| 56 | }
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| 57 |
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| 58 | /* Returns 0 if they are equal, != 0 otherwise. */
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| 59 | int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b)
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| 60 | {
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| 61 | int result = -1;
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| 62 |
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| 63 | if (!a || !b || a->type != b->type)
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| 64 | return -1;
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| 65 |
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| 66 | switch (a->type) {
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| 67 | case V_ASN1_OBJECT:
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| 68 | result = OBJ_cmp(a->value.object, b->value.object);
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| 69 | break;
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| 70 | case V_ASN1_BOOLEAN:
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| 71 | result = a->value.boolean - b->value.boolean;
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| 72 | break;
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| 73 | case V_ASN1_NULL:
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| 74 | result = 0; /* They do not have content. */
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| 75 | break;
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| 76 | case V_ASN1_INTEGER:
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| 77 | case V_ASN1_ENUMERATED:
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| 78 | case V_ASN1_BIT_STRING:
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| 79 | case V_ASN1_OCTET_STRING:
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| 80 | case V_ASN1_SEQUENCE:
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| 81 | case V_ASN1_SET:
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| 82 | case V_ASN1_NUMERICSTRING:
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| 83 | case V_ASN1_PRINTABLESTRING:
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| 84 | case V_ASN1_T61STRING:
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| 85 | case V_ASN1_VIDEOTEXSTRING:
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| 86 | case V_ASN1_IA5STRING:
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| 87 | case V_ASN1_UTCTIME:
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| 88 | case V_ASN1_GENERALIZEDTIME:
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| 89 | case V_ASN1_GRAPHICSTRING:
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| 90 | case V_ASN1_VISIBLESTRING:
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| 91 | case V_ASN1_GENERALSTRING:
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| 92 | case V_ASN1_UNIVERSALSTRING:
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| 93 | case V_ASN1_BMPSTRING:
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| 94 | case V_ASN1_UTF8STRING:
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| 95 | case V_ASN1_OTHER:
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| 96 | default:
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| 97 | result = ASN1_STRING_cmp((ASN1_STRING *)a->value.ptr,
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| 98 | (ASN1_STRING *)b->value.ptr);
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| 99 | break;
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| 100 | }
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| 101 |
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| 102 | return result;
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| 103 | }
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| 104 |
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| 105 | ASN1_TYPE *ASN1_TYPE_pack_sequence(const ASN1_ITEM *it, void *s, ASN1_TYPE **t)
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| 106 | {
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| 107 | ASN1_OCTET_STRING *oct;
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| 108 | ASN1_TYPE *rt;
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| 109 |
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| 110 | oct = ASN1_item_pack(s, it, NULL);
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| 111 | if (oct == NULL)
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| 112 | return NULL;
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| 113 |
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| 114 | if (t && *t) {
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| 115 | rt = *t;
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| 116 | } else {
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| 117 | rt = ASN1_TYPE_new();
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| 118 | if (rt == NULL) {
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| 119 | ASN1_OCTET_STRING_free(oct);
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| 120 | return NULL;
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| 121 | }
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| 122 | if (t)
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| 123 | *t = rt;
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| 124 | }
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| 125 | ASN1_TYPE_set(rt, V_ASN1_SEQUENCE, oct);
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| 126 | return rt;
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| 127 | }
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| 128 |
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| 129 | void *ASN1_TYPE_unpack_sequence(const ASN1_ITEM *it, const ASN1_TYPE *t)
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| 130 | {
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| 131 | if (t == NULL || t->type != V_ASN1_SEQUENCE || t->value.sequence == NULL)
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| 132 | return NULL;
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| 133 | return ASN1_item_unpack(t->value.sequence, it);
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| 134 | }
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