1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* X.509 certificate parser internal definitions
4 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
11 #include <linux/time.h>
12 #include <crypto/public_key.h>
13 #include <keys/asymmetric-type.h>
15 struct x509_certificate {
16 struct x509_certificate *next;
17 struct x509_certificate *signer; /* Certificate that signed this one */
18 struct public_key *pub; /* Public key details */
19 struct public_key_signature *sig; /* Signature parameters */
20 char *issuer; /* Name of certificate issuer */
21 char *subject; /* Name of certificate subject */
22 struct asymmetric_key_id *id; /* Issuer + Serial number */
23 struct asymmetric_key_id *skid; /* Subject + subjectKeyId (optional) */
26 const void *tbs; /* Signed data */
27 unsigned tbs_size; /* Size of signed data */
28 unsigned raw_sig_size; /* Size of sigature */
29 const void *raw_sig; /* Signature data */
30 const void *raw_serial; /* Raw serial number in ASN.1 */
31 unsigned raw_serial_size;
32 unsigned raw_issuer_size;
33 const void *raw_issuer; /* Raw issuer name in ASN.1 */
34 const void *raw_subject; /* Raw subject name in ASN.1 */
35 unsigned raw_subject_size;
36 unsigned raw_skid_size;
37 const void *raw_skid; /* Raw subjectKeyId in ASN.1 */
39 bool seen; /* Infinite recursion prevention */
41 bool self_signed; /* T if self-signed (check unsupported_sig too) */
42 bool unsupported_key; /* T if key uses unsupported crypto */
43 bool unsupported_sig; /* T if signature uses unsupported crypto */
50 extern void x509_free_certificate(struct x509_certificate *cert);
51 extern struct x509_certificate *x509_cert_parse(const void *data, size_t datalen);
52 extern int x509_decode_time(time64_t *_t, size_t hdrlen,
54 const unsigned char *value, size_t vlen);
59 extern int x509_get_sig_params(struct x509_certificate *cert);
60 extern int x509_check_for_self_signed(struct x509_certificate *cert);
61 #endif /* _X509_PARSER_H */