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