LXR linux/crypto/asymmetric_keys/x509

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