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AKASHI Takahiroe85a7872019-11-13 09:45:01 +09001/* SPDX-License-Identifier: GPL-2.0-or-later */
2/* PKCS#7 crypto data parser internal definitions
3 *
4 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
6 */
7
AKASHI Takahiro7b8b63f2020-04-21 09:37:52 +09008#ifndef _PKCS7_PARSER_H
9#define _PKCS7_PARSER_H
10
AKASHI Takahiroe85a7872019-11-13 09:45:01 +090011#include <linux/oid_registry.h>
12#include <crypto/pkcs7.h>
Heinrich Schuchardtb9f217a2020-07-08 07:48:06 +020013#include <crypto/x509_parser.h>
Simon Glass1e94b462023-09-14 18:21:46 -060014#include <linux/printk.h>
AKASHI Takahiroe85a7872019-11-13 09:45:01 +090015
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 unsupported_crypto; /* T if not usable due to missing crypto */
26 bool blacklisted;
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 unsigned long aa_set;
36#define sinfo_has_content_type 0
37#define sinfo_has_signing_time 1
38#define sinfo_has_message_digest 2
39#define sinfo_has_smime_caps 3
40#define sinfo_has_ms_opus_info 4
41#define sinfo_has_ms_statement_type 5
42 time64_t signing_time;
43
44 /* Message signature.
45 *
46 * This contains the generated digest of _either_ the Content Data or
47 * the Authenticated Attributes [RFC2315 9.3]. If the latter, one of
48 * the attributes contains the digest of the the Content Data within
49 * it.
50 *
51 * THis also contains the issuing cert serial number and issuer's name
52 * [PKCS#7 or CMS ver 1] or issuing cert's SKID [CMS ver 3].
53 */
54 struct public_key_signature *sig;
55};
56
57struct pkcs7_message {
58 struct x509_certificate *certs; /* Certificate list */
59 struct x509_certificate *crl; /* Revocation list */
60 struct pkcs7_signed_info *signed_infos;
61 u8 version; /* Version of cert (1 -> PKCS#7 or CMS; 3 -> CMS) */
62 bool have_authattrs; /* T if have authattrs */
63
64 /* Content Data (or NULL) */
65 enum OID data_type; /* Type of Data */
66 size_t data_len; /* Length of Data */
67 size_t data_hdrlen; /* Length of Data ASN.1 header */
68 const void *data; /* Content Data (or 0) */
69};
AKASHI Takahiro7b8b63f2020-04-21 09:37:52 +090070#endif /* _PKCS7_PARSER_H */