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
15struct 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) */
24	struct asymmetric_key_id *akid_id;	/* CA AuthKeyId matching ->id (optional) */
25	struct asymmetric_key_id *akid_skid;	/* CA AuthKeyId matching ->skid (optional) */
26	time64_t	valid_from;
27	time64_t	valid_to;
28	const void	*tbs;			/* Signed data */
29	unsigned	tbs_size;		/* Size of signed data */
30	unsigned	raw_sig_size;		/* Size of sigature */
31	const void	*raw_sig;		/* Signature data */
32	const void	*raw_serial;		/* Raw serial number in ASN.1 */
33	unsigned	raw_serial_size;
34	unsigned	raw_issuer_size;
35	const void	*raw_issuer;		/* Raw issuer name in ASN.1 */
36	const void	*raw_subject;		/* Raw subject name in ASN.1 */
37	unsigned	raw_subject_size;
38	unsigned	raw_skid_size;
39	const void	*raw_skid;		/* Raw subjectKeyId in ASN.1 */
40	unsigned	index;
41	bool		seen;			/* Infinite recursion prevention */
42	bool		verified;
43	bool		trusted;
44	bool		unsupported_crypto;	/* T if can't be verified due to missing crypto */
45};
46
47/*
48 * x509_cert_parser.c
49 */
50extern void x509_free_certificate(struct x509_certificate *cert);
51extern struct x509_certificate *x509_cert_parse(const void *data, size_t datalen);
52extern int x509_decode_time(time64_t *_t,  size_t hdrlen,
53			    unsigned char tag,
54			    const unsigned char *value, size_t vlen);
55
56/*
57 * x509_public_key.c
58 */
59extern int x509_get_sig_params(struct x509_certificate *cert);
60extern int x509_check_signature(const struct public_key *pub,
61				struct x509_certificate *cert);
62