Fix some error path logic in i2v_AUTHORITY_INFO_ACCESS and i2v_GENERAL_NAME
[openssl.git] / crypto / x509v3 / v3_extku.c
1 /*
2  * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the OpenSSL license (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
17 static void *v2i_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method,
18                                     X509V3_CTX *ctx,
19                                     STACK_OF(CONF_VALUE) *nval);
20 static STACK_OF(CONF_VALUE) *i2v_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD
21                                                     *method, void *eku, STACK_OF(CONF_VALUE)
22                                                     *extlist);
23
24 const 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 */
36 const 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
47 ASN1_ITEM_TEMPLATE(EXTENDED_KEY_USAGE) =
48         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, EXTENDED_KEY_USAGE, ASN1_OBJECT)
49 ASN1_ITEM_TEMPLATE_END(EXTENDED_KEY_USAGE)
50
51 IMPLEMENT_ASN1_FUNCTIONS(EXTENDED_KEY_USAGE)
52
53 static 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
69 static 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     int i;
78
79     if ((extku = sk_ASN1_OBJECT_new_null()) == NULL) {
80         X509V3err(X509V3_F_V2I_EXTENDED_KEY_USAGE, ERR_R_MALLOC_FAILURE);
81         return NULL;
82     }
83
84     for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
85         val = sk_CONF_VALUE_value(nval, i);
86         if (val->value)
87             extval = val->value;
88         else
89             extval = val->name;
90         if ((objtmp = OBJ_txt2obj(extval, 0)) == NULL) {
91             sk_ASN1_OBJECT_pop_free(extku, ASN1_OBJECT_free);
92             X509V3err(X509V3_F_V2I_EXTENDED_KEY_USAGE,
93                       X509V3_R_INVALID_OBJECT_IDENTIFIER);
94             X509V3_conf_err(val);
95             return NULL;
96         }
97         sk_ASN1_OBJECT_push(extku, objtmp);
98     }
99     return extku;
100 }