1/* PKCS#7 crypto data 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/oid_registry.h>
13#include <crypto/pkcs7.h>
14#include "x509_parser.h"
15
16#define kenter(FMT, ...) \
17	pr_devel("==> %s("FMT")\n", __func__, ##__VA_ARGS__)
18#define kleave(FMT, ...) \
19	pr_devel("<== %s()"FMT"\n", __func__, ##__VA_ARGS__)
20
21struct pkcs7_signed_info {
22	struct pkcs7_signed_info *next;
23	struct x509_certificate *signer; /* Signing certificate (in msg->certs) */
24	unsigned index;
25	bool trusted;
26	bool unsupported_crypto;	/* T if not usable due to missing crypto */
27
28	/* Message digest - the digest of the Content Data (or NULL) */
29	const void	*msgdigest;
30	unsigned	msgdigest_len;
31
32	/* Authenticated Attribute data (or NULL) */
33	unsigned	authattrs_len;
34	const void	*authattrs;
35
36	/* Issuing cert serial number and issuer's name */
37	struct asymmetric_key_id *signing_cert_id;
38
39	/* Message signature.
40	 *
41	 * This contains the generated digest of _either_ the Content Data or
42	 * the Authenticated Attributes [RFC2315 9.3].  If the latter, one of
43	 * the attributes contains the digest of the the Content Data within
44	 * it.
45	 */
46	struct public_key_signature sig;
47};
48
49struct pkcs7_message {
50	struct x509_certificate *certs;	/* Certificate list */
51	struct x509_certificate *crl;	/* Revocation list */
52	struct pkcs7_signed_info *signed_infos;
53
54	/* Content Data (or NULL) */
55	enum OID	data_type;	/* Type of Data */
56	size_t		data_len;	/* Length of Data */
57	size_t		data_hdrlen;	/* Length of Data ASN.1 header */
58	const void	*data;		/* Content Data (or 0) */
59};
60