1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/* X.509 certificate parser internal definitions
 3 *
 4 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
 5 * Written by David Howells (dhowells@redhat.com)
 
 
 
 
 
 6 */
 7
 8#include <linux/time.h>
 9#include <crypto/public_key.h>
10#include <keys/asymmetric-type.h>
11
12struct x509_certificate {
13	struct x509_certificate *next;
14	struct x509_certificate *signer;	/* Certificate that signed this one */
15	struct public_key *pub;			/* Public key details */
16	struct public_key_signature *sig;	/* Signature parameters */
17	char		*issuer;		/* Name of certificate issuer */
18	char		*subject;		/* Name of certificate subject */
19	struct asymmetric_key_id *id;		/* Issuer + Serial number */
20	struct asymmetric_key_id *skid;		/* Subject + subjectKeyId (optional) */
21	time64_t	valid_from;
22	time64_t	valid_to;
23	const void	*tbs;			/* Signed data */
24	unsigned	tbs_size;		/* Size of signed data */
25	unsigned	raw_sig_size;		/* Size of sigature */
26	const void	*raw_sig;		/* Signature data */
27	const void	*raw_serial;		/* Raw serial number in ASN.1 */
28	unsigned	raw_serial_size;
29	unsigned	raw_issuer_size;
30	const void	*raw_issuer;		/* Raw issuer name in ASN.1 */
31	const void	*raw_subject;		/* Raw subject name in ASN.1 */
32	unsigned	raw_subject_size;
33	unsigned	raw_skid_size;
34	const void	*raw_skid;		/* Raw subjectKeyId in ASN.1 */
35	unsigned	index;
36	bool		seen;			/* Infinite recursion prevention */
37	bool		verified;
38	bool		self_signed;		/* T if self-signed (check unsupported_sig too) */
39	bool		unsupported_key;	/* T if key uses unsupported crypto */
40	bool		unsupported_sig;	/* T if signature uses unsupported crypto */
41	bool		blacklisted;
42};
43
44/*
45 * x509_cert_parser.c
46 */
47extern void x509_free_certificate(struct x509_certificate *cert);
48extern struct x509_certificate *x509_cert_parse(const void *data, size_t datalen);
49extern int x509_decode_time(time64_t *_t,  size_t hdrlen,
50			    unsigned char tag,
51			    const unsigned char *value, size_t vlen);
52
53/*
54 * x509_public_key.c
55 */
56extern int x509_get_sig_params(struct x509_certificate *cert);
57extern int x509_check_for_self_signed(struct x509_certificate *cert);

 
 1/* X.509 certificate parser internal definitions
 2 *
 3 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
 4 * Written by David Howells (dhowells@redhat.com)
 5 *
 6 * This program is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public Licence
 8 * as published by the Free Software Foundation; either version
 9 * 2 of the Licence, or (at your option) any later version.
10 */
11
12#include <linux/time.h>
13#include <crypto/public_key.h>
14#include <keys/asymmetric-type.h>
15
16struct x509_certificate {
17	struct x509_certificate *next;
18	struct x509_certificate *signer;	/* Certificate that signed this one */
19	struct public_key *pub;			/* Public key details */
20	struct public_key_signature *sig;	/* Signature parameters */
21	char		*issuer;		/* Name of certificate issuer */
22	char		*subject;		/* Name of certificate subject */
23	struct asymmetric_key_id *id;		/* Issuer + Serial number */
24	struct asymmetric_key_id *skid;		/* Subject + subjectKeyId (optional) */
25	time64_t	valid_from;
26	time64_t	valid_to;
27	const void	*tbs;			/* Signed data */
28	unsigned	tbs_size;		/* Size of signed data */
29	unsigned	raw_sig_size;		/* Size of sigature */
30	const void	*raw_sig;		/* Signature data */
31	const void	*raw_serial;		/* Raw serial number in ASN.1 */
32	unsigned	raw_serial_size;
33	unsigned	raw_issuer_size;
34	const void	*raw_issuer;		/* Raw issuer name in ASN.1 */
35	const void	*raw_subject;		/* Raw subject name in ASN.1 */
36	unsigned	raw_subject_size;
37	unsigned	raw_skid_size;
38	const void	*raw_skid;		/* Raw subjectKeyId in ASN.1 */
39	unsigned	index;
40	bool		seen;			/* Infinite recursion prevention */
41	bool		verified;
42	bool		self_signed;		/* T if self-signed (check unsupported_sig too) */
43	bool		unsupported_key;	/* T if key uses unsupported crypto */
44	bool		unsupported_sig;	/* T if signature uses unsupported crypto */
45	bool		blacklisted;
46};
47
48/*
49 * x509_cert_parser.c
50 */
51extern void x509_free_certificate(struct x509_certificate *cert);
52extern struct x509_certificate *x509_cert_parse(const void *data, size_t datalen);
53extern int x509_decode_time(time64_t *_t,  size_t hdrlen,
54			    unsigned char tag,
55			    const unsigned char *value, size_t vlen);
56
57/*
58 * x509_public_key.c
59 */
60extern int x509_get_sig_params(struct x509_certificate *cert);
61extern int x509_check_for_self_signed(struct x509_certificate *cert);