1 | /* 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 | |
8 | #include <linux/oid_registry.h> |
9 | #include <crypto/pkcs7.h> |
10 | #include "x509_parser.h" |
11 | |
12 | #define kenter(FMT, ...) \ |
13 | pr_devel("==> %s("FMT")\n", __func__, ##__VA_ARGS__) |
14 | #define kleave(FMT, ...) \ |
15 | pr_devel("<== %s()"FMT"\n", __func__, ##__VA_ARGS__) |
16 | |
17 | struct pkcs7_signed_info { |
18 | struct pkcs7_signed_info *next; |
19 | struct x509_certificate *signer; /* Signing certificate (in msg->certs) */ |
20 | unsigned index; |
21 | bool unsupported_crypto; /* T if not usable due to missing crypto */ |
22 | bool blacklisted; |
23 | |
24 | /* Message digest - the digest of the Content Data (or NULL) */ |
25 | const void *msgdigest; |
26 | unsigned msgdigest_len; |
27 | |
28 | /* Authenticated Attribute data (or NULL) */ |
29 | unsigned authattrs_len; |
30 | const void *authattrs; |
31 | unsigned long aa_set; |
32 | #define sinfo_has_content_type 0 |
33 | #define sinfo_has_signing_time 1 |
34 | #define sinfo_has_message_digest 2 |
35 | #define sinfo_has_smime_caps 3 |
36 | #define sinfo_has_ms_opus_info 4 |
37 | #define sinfo_has_ms_statement_type 5 |
38 | time64_t signing_time; |
39 | |
40 | /* Message signature. |
41 | * |
42 | * This contains the generated digest of _either_ the Content Data or |
43 | * the Authenticated Attributes [RFC2315 9.3]. If the latter, one of |
44 | * the attributes contains the digest of the Content Data within it. |
45 | * |
46 | * This also contains the issuing cert serial number and issuer's name |
47 | * [PKCS#7 or CMS ver 1] or issuing cert's SKID [CMS ver 3]. |
48 | */ |
49 | struct public_key_signature *sig; |
50 | }; |
51 | |
52 | struct pkcs7_message { |
53 | struct x509_certificate *certs; /* Certificate list */ |
54 | struct x509_certificate *crl; /* Revocation list */ |
55 | struct pkcs7_signed_info *signed_infos; |
56 | u8 version; /* Version of cert (1 -> PKCS#7 or CMS; 3 -> CMS) */ |
57 | bool have_authattrs; /* T if have authattrs */ |
58 | |
59 | /* Content Data (or NULL) */ |
60 | enum OID data_type; /* Type of Data */ |
61 | size_t data_len; /* Length of Data */ |
62 | size_t data_hdrlen; /* Length of Data ASN.1 header */ |
63 | const void *data; /* Content Data (or 0) */ |
64 | }; |
65 | |