crypto/asymmetric_keys/pkcs7_parser.h

   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 the Content Data within
  45          * it.
  46          *
  47          * THis also contains the issuing cert serial number and issuer's name
  48          * [PKCS#7 or CMS ver 1] or issuing cert's SKID [CMS ver 3].
  49          */
  50         struct public_key_signature *sig;
  51 };
  52
  53 struct pkcs7_message {
  54         struct x509_certificate *certs; /* Certificate list */
  55         struct x509_certificate *crl;   /* Revocation list */
  56         struct pkcs7_signed_info *signed_infos;
  57         u8              version;        /* Version of cert (1 -> PKCS#7 or CMS; 3 -> CMS) */
  58         bool            have_authattrs; /* T if have authattrs */
  59
  60         /* Content Data (or NULL) */
  61         enum OID        data_type;      /* Type of Data */
  62         size_t          data_len;       /* Length of Data */
  63         size_t          data_hdrlen;    /* Length of Data ASN.1 header */
  64         const void      *data;          /* Content Data (or 0) */
  65 };