1 /*
2 * Copyright 1999-2021 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/asn1.h>
13 #include <openssl/asn1t.h>
14 #include <openssl/conf.h>
15 #include <openssl/x509v3.h>
16 #include "ext_dat.h"
17 #include "x509_local.h"
18
19 static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
20 BASIC_CONSTRAINTS *bcons,
21 STACK_OF(CONF_VALUE)
22 *extlist);
23 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
24 X509V3_CTX *ctx,
25 STACK_OF(CONF_VALUE) *values);
26
27 const X509V3_EXT_METHOD ossl_v3_bcons = {
28 NID_basic_constraints, 0,
29 ASN1_ITEM_ref(BASIC_CONSTRAINTS),
30 0, 0, 0, 0,
31 0, 0,
32 (X509V3_EXT_I2V) i2v_BASIC_CONSTRAINTS,
33 (X509V3_EXT_V2I)v2i_BASIC_CONSTRAINTS,
34 NULL, NULL,
35 NULL
36 };
37
38 ASN1_SEQUENCE(BASIC_CONSTRAINTS) = {
39 ASN1_OPT(BASIC_CONSTRAINTS, ca, ASN1_FBOOLEAN),
40 ASN1_OPT(BASIC_CONSTRAINTS, pathlen, ASN1_INTEGER)
41 } ASN1_SEQUENCE_END(BASIC_CONSTRAINTS)
42
43 IMPLEMENT_ASN1_FUNCTIONS(BASIC_CONSTRAINTS)
44
45 static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
46 BASIC_CONSTRAINTS *bcons,
47 STACK_OF(CONF_VALUE)
48 *extlist)
49 {
50 X509V3_add_value_bool("CA", bcons->ca, &extlist);
51 X509V3_add_value_int("pathlen", bcons->pathlen, &extlist);
52 return extlist;
53 }
54
v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD * method,X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* values)55 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
56 X509V3_CTX *ctx,
57 STACK_OF(CONF_VALUE) *values)
58 {
59 BASIC_CONSTRAINTS *bcons = NULL;
60 CONF_VALUE *val;
61 int i;
62
63 if ((bcons = BASIC_CONSTRAINTS_new()) == NULL) {
64 ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
65 return NULL;
66 }
67 for (i = 0; i < sk_CONF_VALUE_num(values); i++) {
68 val = sk_CONF_VALUE_value(values, i);
69 if (strcmp(val->name, "CA") == 0) {
70 if (!X509V3_get_value_bool(val, &bcons->ca))
71 goto err;
72 } else if (strcmp(val->name, "pathlen") == 0) {
73 if (!X509V3_get_value_int(val, &bcons->pathlen))
74 goto err;
75 } else {
76 ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_NAME);
77 X509V3_conf_add_error_name_value(val);
78 goto err;
79 }
80 }
81 return bcons;
82 err:
83 BASIC_CONSTRAINTS_free(bcons);
84 return NULL;
85 }
86
