1/*
2 * Copyright 1999-2016 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 <stdio.h>
11#include "internal/cryptlib.h"
12#include <openssl/asn1t.h>
13#include <openssl/conf.h>
14#include <openssl/x509v3.h>
15#include "ext_dat.h"
16
17static void *v2i_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method,
18 X509V3_CTX *ctx,
19 STACK_OF(CONF_VALUE) *nval);
20static STACK_OF(CONF_VALUE) *i2v_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD
21 *method, void *eku, STACK_OF(CONF_VALUE)
22 *extlist);
23
24const X509V3_EXT_METHOD v3_ext_ku = {
25 NID_ext_key_usage, 0,
26 ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
27 0, 0, 0, 0,
28 0, 0,
29 i2v_EXTENDED_KEY_USAGE,
30 v2i_EXTENDED_KEY_USAGE,
31 0, 0,
32 NULL
33};
34
35/* NB OCSP acceptable responses also is a SEQUENCE OF OBJECT */
36const X509V3_EXT_METHOD v3_ocsp_accresp = {
37 NID_id_pkix_OCSP_acceptableResponses, 0,
38 ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
39 0, 0, 0, 0,
40 0, 0,
41 i2v_EXTENDED_KEY_USAGE,
42 v2i_EXTENDED_KEY_USAGE,
43 0, 0,
44 NULL
45};
46
47ASN1_ITEM_TEMPLATE(EXTENDED_KEY_USAGE) =
48 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, EXTENDED_KEY_USAGE, ASN1_OBJECT)
49ASN1_ITEM_TEMPLATE_END(EXTENDED_KEY_USAGE)
50
51IMPLEMENT_ASN1_FUNCTIONS(EXTENDED_KEY_USAGE)
52
53static STACK_OF(CONF_VALUE) *i2v_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD
54 *method, void *a, STACK_OF(CONF_VALUE)
55 *ext_list)
56{
57 EXTENDED_KEY_USAGE *eku = a;
58 int i;
59 ASN1_OBJECT *obj;
60 char obj_tmp[80];
61 for (i = 0; i < sk_ASN1_OBJECT_num(eku); i++) {
62 obj = sk_ASN1_OBJECT_value(eku, i);
63 i2t_ASN1_OBJECT(obj_tmp, 80, obj);
64 X509V3_add_value(NULL, obj_tmp, &ext_list);
65 }
66 return ext_list;
67}
68
69static void *v2i_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method,
70 X509V3_CTX *ctx,
71 STACK_OF(CONF_VALUE) *nval)
72{
73 EXTENDED_KEY_USAGE *extku;
74 char *extval;
75 ASN1_OBJECT *objtmp;
76 CONF_VALUE *val;
77 const int num = sk_CONF_VALUE_num(nval);
78 int i;
79
80 extku = sk_ASN1_OBJECT_new_reserve(NULL, num);
81 if (extku == NULL) {
82 X509V3err(X509V3_F_V2I_EXTENDED_KEY_USAGE, ERR_R_MALLOC_FAILURE);
83 sk_ASN1_OBJECT_free(extku);
84 return NULL;
85 }
86
87 for (i = 0; i < num; i++) {
88 val = sk_CONF_VALUE_value(nval, i);
89 if (val->value)
90 extval = val->value;
91 else
92 extval = val->name;
93 if ((objtmp = OBJ_txt2obj(extval, 0)) == NULL) {
94 sk_ASN1_OBJECT_pop_free(extku, ASN1_OBJECT_free);
95 X509V3err(X509V3_F_V2I_EXTENDED_KEY_USAGE,
96 X509V3_R_INVALID_OBJECT_IDENTIFIER);
97 X509V3_conf_err(val);
98 return NULL;
99 }
100 sk_ASN1_OBJECT_push(extku, objtmp); /* no failure as it was reserved */
101 }
102 return extku;
103}
104