bda850cd21
Make the determination of the trustworthiness of a key dependent on whether a key that can verify it is present in the supplied ring of trusted keys rather than whether or not the verifying key has KEY_FLAG_TRUSTED set. verify_pkcs7_signature() will return -ENOKEY if the PKCS#7 message trust chain cannot be verified. Signed-off-by: David Howells <dhowells@redhat.com>
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/* PKCS#7 crypto data parser internal definitions
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*
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* Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public Licence
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* as published by the Free Software Foundation; either version
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* 2 of the Licence, or (at your option) any later version.
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*/
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#include <linux/oid_registry.h>
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#include <crypto/pkcs7.h>
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#include "x509_parser.h"
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#define kenter(FMT, ...) \
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pr_devel("==> %s("FMT")\n", __func__, ##__VA_ARGS__)
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#define kleave(FMT, ...) \
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pr_devel("<== %s()"FMT"\n", __func__, ##__VA_ARGS__)
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struct pkcs7_signed_info {
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struct pkcs7_signed_info *next;
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struct x509_certificate *signer; /* Signing certificate (in msg->certs) */
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unsigned index;
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bool unsupported_crypto; /* T if not usable due to missing crypto */
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/* Message digest - the digest of the Content Data (or NULL) */
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const void *msgdigest;
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unsigned msgdigest_len;
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/* Authenticated Attribute data (or NULL) */
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unsigned authattrs_len;
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const void *authattrs;
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unsigned long aa_set;
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#define sinfo_has_content_type 0
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#define sinfo_has_signing_time 1
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#define sinfo_has_message_digest 2
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#define sinfo_has_smime_caps 3
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#define sinfo_has_ms_opus_info 4
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#define sinfo_has_ms_statement_type 5
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time64_t signing_time;
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/* Message signature.
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*
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* This contains the generated digest of _either_ the Content Data or
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* the Authenticated Attributes [RFC2315 9.3]. If the latter, one of
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* the attributes contains the digest of the the Content Data within
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* it.
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*
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* THis also contains the issuing cert serial number and issuer's name
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* [PKCS#7 or CMS ver 1] or issuing cert's SKID [CMS ver 3].
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*/
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struct public_key_signature *sig;
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};
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struct pkcs7_message {
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struct x509_certificate *certs; /* Certificate list */
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struct x509_certificate *crl; /* Revocation list */
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struct pkcs7_signed_info *signed_infos;
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u8 version; /* Version of cert (1 -> PKCS#7 or CMS; 3 -> CMS) */
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bool have_authattrs; /* T if have authattrs */
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/* Content Data (or NULL) */
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enum OID data_type; /* Type of Data */
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size_t data_len; /* Length of Data */
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size_t data_hdrlen; /* Length of Data ASN.1 header */
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const void *data; /* Content Data (or 0) */
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};
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