usr.sbin/uefisign/magic.h

   1 /*-
   2  * Copyright (c) 2014 The FreeBSD Foundation
   3  * All rights reserved.
   4  *
   5  * This software was developed by Edward Tomasz Napierala under sponsorship
   6  * from the FreeBSD Foundation.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * $FreeBSD: head/usr.sbin/uefisign/magic.h 289677 2015-10-21 05:37:09Z eadler $
  30  *
  31  */
  32
  33 /*
  34  * This file contains Authenticode-specific ASN.1 "configuration", used,
  35  * after being processed by asprintf(3), as an input to ASN1_generate_nconf(3).
  36  */
  37 static const char *magic_fmt =
  38 "asn1 = SEQUENCE:SpcIndirectDataContent\n"
  39 "\n"
  40 "[SpcIndirectDataContent]\n"
  41 "a = SEQUENCE:SpcAttributeTypeAndOptionalValue\n"
  42 "b = SEQUENCE:DigestInfo\n"
  43 "\n"
  44 "[SpcAttributeTypeAndOptionalValue]\n"
  45 "# SPC_PE_IMAGE_DATAOBJ\n"
  46 "a = OID:1.3.6.1.4.1.311.2.1.15\n"
  47 "b = SEQUENCE:SpcPeImageData\n"
  48 "\n"
  49 "[SpcPeImageData]\n"
  50 "a = FORMAT:HEX,BITSTRING:00\n"
  51 /*
  52  * Well, there should be some other struct here, "SPCLink", but it doesn't
  53  * appear to be necessary for UEFI, and I have no idea how to synthesize it,
  54  * as it uses the CHOICE type.
  55  */
  56 "\n"
  57 "[DigestInfo]\n"
  58 "a = SEQUENCE:AlgorithmIdentifier\n"
  59 /*
  60  * Here goes the digest computed from PE headers and sections.
  61  */
  62 "b = FORMAT:HEX,OCTETSTRING:%s\n"
  63 "\n"
  64 "[AlgorithmIdentifier]\n"
  65 "a = OBJECT:sha256\n"
  66 "b = NULL\n";