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	struct asymmetric_key_id *akid_id;	/* CA AuthKeyId matching ->id (optional) */
26	struct asymmetric_key_id *akid_skid;	/* CA AuthKeyId matching ->skid (optional) */
27	time64_t	valid_from;
28	time64_t	valid_to;
29	const void	*tbs;			/* Signed data */
30	unsigned	tbs_size;		/* Size of signed data */
31	unsigned	raw_sig_size;		/* Size of sigature */
32	const void	*raw_sig;		/* Signature data */
33	const void	*raw_serial;		/* Raw serial number in ASN.1 */
34	unsigned	raw_serial_size;
35	unsigned	raw_issuer_size;
36	const void	*raw_issuer;		/* Raw issuer name in ASN.1 */
37	const void	*raw_subject;		/* Raw subject name in ASN.1 */
38	unsigned	raw_subject_size;
39	unsigned	raw_skid_size;
40	const void	*raw_skid;		/* Raw subjectKeyId in ASN.1 */
41	unsigned	index;
42	bool		seen;			/* Infinite recursion prevention */
43	bool		verified;
44	bool		trusted;
45	bool		unsupported_crypto;	/* T if can't be verified due to missing crypto */
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_signature(const struct public_key *pub,
62				struct x509_certificate *cert);
63