1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/*
* Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/conf.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/x509v3.h>
#include "ext_dat.h"
static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
AUTHORITY_KEYID *akeyid,
STACK_OF(CONF_VALUE)
*extlist);
static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
X509V3_CTX *ctx,
STACK_OF(CONF_VALUE) *values);
const X509V3_EXT_METHOD v3_akey_id = {
NID_authority_key_identifier,
X509V3_EXT_MULTILINE, ASN1_ITEM_ref(AUTHORITY_KEYID),
0, 0, 0, 0,
0, 0,
(X509V3_EXT_I2V) i2v_AUTHORITY_KEYID,
(X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
0, 0,
NULL
};
static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
AUTHORITY_KEYID *akeyid,
STACK_OF(CONF_VALUE)
*extlist)
{
char *tmp;
if (akeyid->keyid) {
tmp = OPENSSL_buf2hexstr(akeyid->keyid->data, akeyid->keyid->length);
X509V3_add_value("keyid", tmp, &extlist);
OPENSSL_free(tmp);
}
if (akeyid->issuer)
extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
if (akeyid->serial) {
tmp = OPENSSL_buf2hexstr(akeyid->serial->data, akeyid->serial->length);
X509V3_add_value("serial", tmp, &extlist);
OPENSSL_free(tmp);
}
return extlist;
}
/*-
* Currently two options:
* keyid: use the issuers subject keyid, the value 'always' means its is
* an error if the issuer certificate doesn't have a key id.
* issuer: use the issuers cert issuer and serial number. The default is
* to only use this if keyid is not present. With the option 'always'
* this is always included.
*/
static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
X509V3_CTX *ctx,
STACK_OF(CONF_VALUE) *values)
{
char keyid = 0, issuer = 0;
int i;
CONF_VALUE *cnf;
ASN1_OCTET_STRING *ikeyid = NULL;
X509_NAME *isname = NULL;
GENERAL_NAMES *gens = NULL;
GENERAL_NAME *gen = NULL;
ASN1_INTEGER *serial = NULL;
X509_EXTENSION *ext;
X509 *cert;
AUTHORITY_KEYID *akeyid;
for (i = 0; i < sk_CONF_VALUE_num(values); i++) {
cnf = sk_CONF_VALUE_value(values, i);
if (strcmp(cnf->name, "keyid") == 0) {
keyid = 1;
if (cnf->value && strcmp(cnf->value, "always") == 0)
keyid = 2;
} else if (strcmp(cnf->name, "issuer") == 0) {
issuer = 1;
if (cnf->value && strcmp(cnf->value, "always") == 0)
issuer = 2;
} else {
X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, X509V3_R_UNKNOWN_OPTION);
ERR_add_error_data(2, "name=", cnf->name);
return NULL;
}
}
if (!ctx || !ctx->issuer_cert) {
if (ctx && (ctx->flags == CTX_TEST))
return AUTHORITY_KEYID_new();
X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,
X509V3_R_NO_ISSUER_CERTIFICATE);
return NULL;
}
cert = ctx->issuer_cert;
if (keyid) {
i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
if ((i >= 0) && (ext = X509_get_ext(cert, i)))
ikeyid = X509V3_EXT_d2i(ext);
if (keyid == 2 && !ikeyid) {
X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,
X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
return NULL;
}
}
if ((issuer && !ikeyid) || (issuer == 2)) {
isname = X509_NAME_dup(X509_get_issuer_name(cert));
serial = ASN1_INTEGER_dup(X509_get_serialNumber(cert));
if (!isname || !serial) {
X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,
X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
goto err;
}
}
if ((akeyid = AUTHORITY_KEYID_new()) == NULL)
goto err;
if (isname) {
if ((gens = sk_GENERAL_NAME_new_null()) == NULL
|| (gen = GENERAL_NAME_new()) == NULL
|| !sk_GENERAL_NAME_push(gens, gen)) {
X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, ERR_R_MALLOC_FAILURE);
goto err;
}
gen->type = GEN_DIRNAME;
gen->d.dirn = isname;
}
akeyid->issuer = gens;
gen = NULL;
gens = NULL;
akeyid->serial = serial;
akeyid->keyid = ikeyid;
return akeyid;
err:
sk_GENERAL_NAME_free(gens);
GENERAL_NAME_free(gen);
X509_NAME_free(isname);
ASN1_INTEGER_free(serial);
ASN1_OCTET_STRING_free(ikeyid);
return NULL;
}
|