crypto/asymmetric_keys/x509_parser.h

   1 /* X.509 certificate parser internal definitions
   2  *
   3  * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public Licence
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the Licence, or (at your option) any later version.
  10  */
  11
  12 #include <linux/time.h>
  13 #include <crypto/public_key.h>
  14 #include <keys/asymmetric-type.h>
  15
  16 struct x509_certificate {
  17         struct x509_certificate *next;
  18         struct x509_certificate *signer;        /* Certificate that signed this one */
  19         struct public_key *pub;                 /* Public key details */
  20         struct public_key_signature sig;        /* Signature parameters */
  21         char            *issuer;                /* Name of certificate issuer */
  22         char            *subject;               /* Name of certificate subject */
  23         struct asymmetric_key_id *id;           /* Issuer + Serial number */
  24         struct asymmetric_key_id *skid;         /* Subject + subjectKeyId (optional) */
  25         struct asymmetric_key_id *akid_id;      /* CA AuthKeyId matching ->id (optional) */
  26         struct asymmetric_key_id *akid_skid;    /* CA AuthKeyId matching ->skid (optional) */
  27         time64_t        valid_from;
  28         time64_t        valid_to;
  29         const void      *tbs;                   /* Signed data */
  30         unsigned        tbs_size;               /* Size of signed data */
  31         unsigned        raw_sig_size;           /* Size of sigature */
  32         const void      *raw_sig;               /* Signature data */
  33         const void      *raw_serial;            /* Raw serial number in ASN.1 */
  34         unsigned        raw_serial_size;
  35         unsigned        raw_issuer_size;
  36         const void      *raw_issuer;            /* Raw issuer name in ASN.1 */
  37         const void      *raw_subject;           /* Raw subject name in ASN.1 */
  38         unsigned        raw_subject_size;
  39         unsigned        raw_skid_size;
  40         const void      *raw_skid;              /* Raw subjectKeyId in ASN.1 */
  41         unsigned        index;
  42         bool            seen;                   /* Infinite recursion prevention */
  43         bool            verified;
  44         bool            trusted;
  45         bool            unsupported_crypto;     /* T if can't be verified due to missing crypto */
  46 };
  47
  48 /*
  49  * x509_cert_parser.c
  50  */
  51 extern void x509_free_certificate(struct x509_certificate *cert);
  52 extern struct x509_certificate *x509_cert_parse(const void *data, size_t datalen);
  53 extern int x509_decode_time(time64_t *_t,  size_t hdrlen,
  54                             unsigned char tag,
  55                             const unsigned char *value, size_t vlen);
  56
  57 /*
  58  * x509_public_key.c
  59  */
  60 extern int x509_get_sig_params(struct x509_certificate *cert);
  61 extern int x509_check_signature(const struct public_key *pub,
  62                                 struct x509_certificate *cert);