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/* Copyright 2017 R. Thomas
* Copyright 2017 Quarkslab
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LIEF_PE_CONTENT_INFO_H_
#define LIEF_PE_CONTENT_INFO_H_
#include "LIEF/Object.hpp"
#include "LIEF/visibility.h"
#include "LIEF/PE/signature/types.hpp"
#include "LIEF/PE/enums.hpp"
namespace LIEF {
namespace PE {
class Parser;
class SignatureParser;
/** ContentInfo as described in the RFC2315 (https://tools.ietf.org/html/rfc2315#section-7)
*
* ```raw
* ContentInfo ::= SEQUENCE {
* contentType ContentType,
* content [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL
* }
*
* ContentType ::= OBJECT IDENTIFIER
* ```
*
* In the case of PE signature, ContentType **must** be set to SPC_INDIRECT_DATA_OBJID
* OID: ``1.3.6.1.4.1.311.2.1.4`` and content is defined by the structure: ``SpcIndirectDataContent``
* ```raw
* SpcIndirectDataContent ::= SEQUENCE {
* data SpcAttributeTypeAndOptionalValue,
* messageDigest DigestInfo
* }
*
* SpcAttributeTypeAndOptionalValue ::= SEQUENCE {
* type ObjectID,
* value [0] EXPLICIT ANY OPTIONAL
* }
* ```
*
* For PE signature, ``SpcAttributeTypeAndOptionalValue.type``
* is set to ``SPC_PE_IMAGE_DATAOBJ`` (OID: ``1.3.6.1.4.1.311.2.1.15``) and the value is defined by
* ``SpcPeImageData``
*
* ```raw
* DigestInfo ::= SEQUENCE {
* digestAlgorithm AlgorithmIdentifier,
* digest OCTETSTRING
* }
*
* AlgorithmIdentifier ::= SEQUENCE {
* algorithm ObjectID,
* parameters [0] EXPLICIT ANY OPTIONAL
* }
* ```
*/
class LIEF_API ContentInfo : public Object {
friend class Parser;
friend class SignatureParser;
public:
ContentInfo(void);
ContentInfo(const ContentInfo&);
ContentInfo& operator=(const ContentInfo&);
//! Return the OID that describes the content wrapped by this object.
//! It should match SPC_INDIRECT_DATA_OBJID (1.3.6.1.4.1.311.2.1.4)
inline oid_t content_type() const {
return content_type_;
}
//! Digest used to hash the file
//!
//! It should match LIEF::PE::SignerInfo::digest_algorithm
inline ALGORITHMS digest_algorithm() const {
return this->digest_algorithm_;
}
//! PE's authentihash
//!
//! @see LIEF::PE::Binary::authentihash
inline const std::vector<uint8_t>& digest() const {
return this->digest_;
}
inline const std::string& file() const {
return this->file_;
}
virtual void accept(Visitor& visitor) const override;
virtual ~ContentInfo(void);
LIEF_API friend std::ostream& operator<<(std::ostream& os, const ContentInfo& content_info);
private:
oid_t content_type_;
std::string file_;
uint8_t flags_ = 0;
ALGORITHMS digest_algorithm_ = ALGORITHMS::UNKNOWN;
std::vector<uint8_t> digest_;
};
}
}
#endif