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 #ifndef _PKCS7_PARSER_H 9 #define _PKCS7_PARSER_H 10 11 #include <linux/oid_registry.h> 12 #include <crypto/pkcs7.h> 13 #include <crypto/x509_parser.h> 14 15 #define kenter(FMT, ...) \ 16 pr_devel("==> %s("FMT")\n", __func__, ##__VA_ARGS__) 17 #define kleave(FMT, ...) \ 18 pr_devel("<== %s()"FMT"\n", __func__, ##__VA_ARGS__) 19 20 struct pkcs7_signed_info { 21 struct pkcs7_signed_info *next; 22 struct x509_certificate *signer; /* Signing certificate (in msg->certs) */ 23 unsigned index; 24 bool unsupported_crypto; /* T if not usable due to missing crypto */ 25 bool blacklisted; 26 27 /* Message digest - the digest of the Content Data (or NULL) */ 28 const void *msgdigest; 29 unsigned msgdigest_len; 30 31 /* Authenticated Attribute data (or NULL) */ 32 unsigned authattrs_len; 33 const void *authattrs; 34 unsigned long aa_set; 35 #define sinfo_has_content_type 0 36 #define sinfo_has_signing_time 1 37 #define sinfo_has_message_digest 2 38 #define sinfo_has_smime_caps 3 39 #define sinfo_has_ms_opus_info 4 40 #define sinfo_has_ms_statement_type 5 41 time64_t signing_time; 42 43 /* Message signature. 44 * 45 * This contains the generated digest of _either_ the Content Data or 46 * the Authenticated Attributes [RFC2315 9.3]. If the latter, one of 47 * the attributes contains the digest of the the Content Data within 48 * it. 49 * 50 * THis also contains the issuing cert serial number and issuer's name 51 * [PKCS#7 or CMS ver 1] or issuing cert's SKID [CMS ver 3]. 52 */ 53 struct public_key_signature *sig; 54 }; 55 56 struct pkcs7_message { 57 struct x509_certificate *certs; /* Certificate list */ 58 struct x509_certificate *crl; /* Revocation list */ 59 struct pkcs7_signed_info *signed_infos; 60 u8 version; /* Version of cert (1 -> PKCS#7 or CMS; 3 -> CMS) */ 61 bool have_authattrs; /* T if have authattrs */ 62 63 /* Content Data (or NULL) */ 64 enum OID data_type; /* Type of Data */ 65 size_t data_len; /* Length of Data */ 66 size_t data_hdrlen; /* Length of Data ASN.1 header */ 67 const void *data; /* Content Data (or 0) */ 68 }; 69 #endif /* _PKCS7_PARSER_H */ 70