crypto/asymmetric_keys/x509_parser.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /* X.509 certificate 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/cleanup.h>
   9 #include <linux/time.h>
  10 #include <crypto/public_key.h>
  11 #include <keys/asymmetric-type.h>
  12
  13 struct x509_certificate {
  14         struct x509_certificate *next;
  15         struct x509_certificate *signer;        /* Certificate that signed this one */
  16         struct public_key *pub;                 /* Public key details */
  17         struct public_key_signature *sig;       /* Signature parameters */
  18         char            *issuer;                /* Name of certificate issuer */
  19         char            *subject;               /* Name of certificate subject */
  20         struct asymmetric_key_id *id;           /* Issuer + Serial number */
  21         struct asymmetric_key_id *skid;         /* Subject + subjectKeyId (optional) */
  22         time64_t        valid_from;
  23         time64_t        valid_to;
  24         const void      *tbs;                   /* Signed data */
  25         unsigned        tbs_size;               /* Size of signed data */
  26         unsigned        raw_sig_size;           /* Size of signature */
  27         const void      *raw_sig;               /* Signature data */
  28         const void      *raw_serial;            /* Raw serial number in ASN.1 */
  29         unsigned        raw_serial_size;
  30         unsigned        raw_issuer_size;
  31         const void      *raw_issuer;            /* Raw issuer name in ASN.1 */
  32         const void      *raw_subject;           /* Raw subject name in ASN.1 */
  33         unsigned        raw_subject_size;
  34         unsigned        raw_skid_size;
  35         const void      *raw_skid;              /* Raw subjectKeyId in ASN.1 */
  36         unsigned        index;
  37         bool            seen;                   /* Infinite recursion prevention */
  38         bool            verified;
  39         bool            self_signed;            /* T if self-signed (check unsupported_sig too) */
  40         bool            unsupported_sig;        /* T if signature uses unsupported crypto */
  41         bool            blacklisted;
  42 };
  43
  44 /*
  45  * x509_cert_parser.c
  46  */
  47 extern void x509_free_certificate(struct x509_certificate *cert);
  48 DEFINE_FREE(x509_free_certificate, struct x509_certificate *,
  49             if (!IS_ERR(_T)) x509_free_certificate(_T))
  50 extern struct x509_certificate *x509_cert_parse(const void *data, size_t datalen);
  51 extern int x509_decode_time(time64_t *_t,  size_t hdrlen,
  52                             unsigned char tag,
  53                             const unsigned char *value, size_t vlen);
  54
  55 /*
  56  * x509_public_key.c
  57  */
  58 extern int x509_get_sig_params(struct x509_certificate *cert);
  59 extern int x509_check_for_self_signed(struct x509_certificate *cert);