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https://git.wownero.com/wownero/wownero.git
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7175dcb107
This reduces the attack surface for data that can come from malicious sources (exported output and key images, multisig transactions...) since the monero serialization is already exposed to the outside, and the boost lib we were using had a few known crashers. For interoperability, a new load-deprecated-formats wallet setting is added (off by default). This allows loading boost format data if there is no alternative. It will likely go at some point, along with the ability to load those. Notably, the peer lists file still uses the boost serialization code, as the data it stores is define in epee, while the new serialization code is in monero, and migrating it was fairly hairy. Since this file is local and not obtained from anyone else, the marginal risk is minimal, but it could be migrated later if needed. Some tests and tools also do, this will stay as is for now.
398 lines
12 KiB
C++
398 lines
12 KiB
C++
// Copyright (c) 2014-2020, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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/*! \file serialization.h
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* \brief Simple DSL AAPI based on
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*
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* \detailed is_blob_type and has_free_serializer are
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* both descriptors for dispatching on to the serialize function.
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*
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* The API itself defines a domain specific language via dirty macro
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* hacks. Greenspun's tenth rule is very much in action throughout
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* this entire code base.
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*/
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#pragma once
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#include <vector>
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#include <deque>
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#include <list>
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#include <set>
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#include <unordered_set>
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#include <string>
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#include <boost/type_traits/is_integral.hpp>
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#include <boost/type_traits/integral_constant.hpp>
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#include <boost/mpl/bool.hpp>
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/*! \struct is_blob_type
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*
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* \brief a descriptor for dispatching serialize
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*/
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template <class T>
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struct is_blob_type { typedef boost::false_type type; };
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/*! \struct has_free_serializer
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*
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* \brief a descriptor for dispatching serialize
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*/
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template <class T>
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struct has_free_serializer { typedef boost::true_type type; };
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/*! \struct is_basic_type
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*
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* \brief a descriptor for dispatching serialize
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*/
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template <class T>
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struct is_basic_type { typedef boost::false_type type; };
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template<typename F, typename S>
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struct is_basic_type<std::pair<F,S>> { typedef boost::true_type type; };
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template<>
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struct is_basic_type<std::string> { typedef boost::true_type type; };
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/*! \struct serializer
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*
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* \brief ... wouldn't a class be better?
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*
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* \detailed The logic behind serializing data. Places the archive
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* data into the supplied parameter. This dispatches based on the
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* supplied \a T template parameter's traits of is_blob_type or it is
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* an integral (as defined by the is_integral trait). Depends on the
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* \a Archive parameter to have overloaded the serialize_blob(T v,
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* size_t size) and serialize_int(T v) base on which trait it
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* applied. When the class has neither types, it falls to the
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* overloaded method do_serialize(Archive ar) in T to do the work.
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*/
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template <class Archive, class T>
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struct serializer{
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static bool serialize(Archive &ar, T &v) {
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return serialize(ar, v, typename boost::is_integral<T>::type(), typename is_blob_type<T>::type(), typename is_basic_type<T>::type());
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}
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template<typename A>
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static bool serialize(Archive &ar, T &v, boost::false_type, boost::true_type, A a) {
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ar.serialize_blob(&v, sizeof(v));
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return true;
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}
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template<typename A>
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static bool serialize(Archive &ar, T &v, boost::true_type, boost::false_type, A a) {
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ar.serialize_int(v);
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return true;
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}
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static bool serialize(Archive &ar, T &v, boost::false_type, boost::false_type, boost::false_type) {
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//serialize_custom(ar, v, typename has_free_serializer<T>::type());
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return v.do_serialize(ar);
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}
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static bool serialize(Archive &ar, T &v, boost::false_type, boost::false_type, boost::true_type) {
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//serialize_custom(ar, v, typename has_free_serializer<T>::type());
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return do_serialize(ar, v);
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}
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static void serialize_custom(Archive &ar, T &v, boost::true_type) {
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}
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};
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/*! \fn do_serialize(Archive &ar, T &v)
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*
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* \brief just calls the serialize function defined for ar and v...
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*/
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template <class Archive, class T>
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inline bool do_serialize(Archive &ar, T &v)
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{
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return ::serializer<Archive, T>::serialize(ar, v);
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}
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template <class Archive>
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inline bool do_serialize(Archive &ar, bool &v)
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{
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ar.serialize_blob(&v, sizeof(v));
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return true;
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}
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// Never used in the code base
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// #ifndef __GNUC__
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// #ifndef constexpr
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// #define constexpr
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// #endif
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// #endif
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/* the following add a trait to a set and define the serialization DSL*/
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/*! \macro BLOB_SERIALIZER
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*
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* \brief makes the type have a blob serializer trait defined
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*/
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#define BLOB_SERIALIZER(T) \
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template<> \
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struct is_blob_type<T> { \
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typedef boost::true_type type; \
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}
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/*! \macro FREE_SERIALIZER
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*
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* \brief adds the has_free_serializer to the type
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*/
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#define FREE_SERIALIZER(T) \
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template<> \
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struct has_free_serializer<T> { \
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typedef boost::true_type type; \
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}
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/*! \macro VARIANT_TAG
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*
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* \brief Adds the tag \tag to the \a Archive of \a Type
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*/
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#define VARIANT_TAG(Archive, Type, Tag) \
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template <bool W> \
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struct variant_serialization_traits<Archive<W>, Type> { \
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static inline typename Archive<W>::variant_tag_type get_tag() { \
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return Tag; \
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} \
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}
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/*! \macro BEGIN_SERIALIZE
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*
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* \brief Begins the environment of the DSL
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* \detailed for describing how to
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* serialize an of an archive type
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*/
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#define BEGIN_SERIALIZE() \
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template <bool W, template <bool> class Archive> \
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bool do_serialize(Archive<W> &ar) {
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/*! \macro BEGIN_SERIALIZE_OBJECT
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*
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* \brief begins the environment of the DSL
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* \detailed for described the serialization of an object
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*/
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#define BEGIN_SERIALIZE_OBJECT() \
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template <bool W, template <bool> class Archive> \
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bool do_serialize(Archive<W> &ar) { \
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ar.begin_object(); \
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bool r = do_serialize_object(ar); \
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ar.end_object(); \
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return r; \
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} \
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template <bool W, template <bool> class Archive> \
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bool do_serialize_object(Archive<W> &ar){
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/*! \macro PREPARE_CUSTOM_VECTOR_SERIALIZATION
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*/
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#define PREPARE_CUSTOM_VECTOR_SERIALIZATION(size, vec) \
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::serialization::detail::prepare_custom_vector_serialization(size, vec, typename Archive<W>::is_saving())
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/*! \macro PREPARE_CUSTOM_DEQUE_SERIALIZATION
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*/
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#define PREPARE_CUSTOM_DEQUE_SERIALIZATION(size, vec) \
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::serialization::detail::prepare_custom_deque_serialization(size, vec, typename Archive<W>::is_saving())
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/*! \macro END_SERIALIZE
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* \brief self-explanatory
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*/
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#define END_SERIALIZE() \
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return ar.stream().good(); \
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}
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/*! \macro VALUE(f)
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* \brief the same as FIELD(f)
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*/
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#define VALUE(f) \
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do { \
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ar.tag(#f); \
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bool r = ::do_serialize(ar, f); \
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if (!r || !ar.stream().good()) return false; \
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} while(0);
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/*! \macro FIELD_N(t,f)
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*
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* \brief serializes a field \a f tagged \a t
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*/
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#define FIELD_N(t, f) \
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do { \
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ar.tag(t); \
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bool r = ::do_serialize(ar, f); \
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if (!r || !ar.stream().good()) return false; \
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} while(0);
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/*! \macro FIELD(f)
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*
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* \brief tags the field with the variable name and then serializes it
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*/
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#define FIELD(f) \
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do { \
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ar.tag(#f); \
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bool r = ::do_serialize(ar, f); \
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if (!r || !ar.stream().good()) return false; \
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} while(0);
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/*! \macro FIELDS(f)
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*
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* \brief does not add a tag to the serialized value
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*/
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#define FIELDS(f) \
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do { \
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bool r = ::do_serialize(ar, f); \
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if (!r || !ar.stream().good()) return false; \
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} while(0);
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/*! \macro VARINT_FIELD(f)
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* \brief tags and serializes the varint \a f
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*/
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#define VARINT_FIELD(f) \
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do { \
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ar.tag(#f); \
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ar.serialize_varint(f); \
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if (!ar.stream().good()) return false; \
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} while(0);
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/*! \macro VARINT_FIELD_N(t, f)
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*
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* \brief tags (as \a t) and serializes the varint \a f
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*/
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#define VARINT_FIELD_N(t, f) \
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do { \
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ar.tag(t); \
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ar.serialize_varint(f); \
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if (!ar.stream().good()) return false; \
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} while(0);
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/*! \macro MAGIC_FIELD(m)
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*/
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#define MAGIC_FIELD(m) \
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std::string magic = m; \
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do { \
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ar.tag("magic"); \
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ar.serialize_blob((void*)magic.data(), magic.size()); \
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if (!ar.stream().good()) return false; \
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if (magic != m) return false; \
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} while(0);
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/*! \macro VERSION_FIELD(v)
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*/
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#define VERSION_FIELD(v) \
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uint32_t version = v; \
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do { \
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ar.tag("version"); \
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ar.serialize_varint(version); \
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if (!ar.stream().good()) return false; \
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} while(0);
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namespace serialization {
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/*! \namespace detail
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*
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* \brief declaration and default definition for the functions used the API
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*
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*/
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namespace detail
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{
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/*! \fn prepare_custom_vector_serialization
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*
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* prepares the vector /vec for serialization
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*/
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template <typename T>
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void prepare_custom_vector_serialization(size_t size, std::vector<T>& vec, const boost::mpl::bool_<true>& /*is_saving*/)
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{
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}
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template <typename T>
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void prepare_custom_vector_serialization(size_t size, std::vector<T>& vec, const boost::mpl::bool_<false>& /*is_saving*/)
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{
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vec.resize(size);
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}
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template <typename T>
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void prepare_custom_deque_serialization(size_t size, std::deque<T>& vec, const boost::mpl::bool_<true>& /*is_saving*/)
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{
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}
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template <typename T>
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void prepare_custom_deque_serialization(size_t size, std::deque<T>& vec, const boost::mpl::bool_<false>& /*is_saving*/)
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{
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vec.resize(size);
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}
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/*! \fn do_check_stream_state
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*
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* \brief self explanatory
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*/
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template<class Stream>
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bool do_check_stream_state(Stream& s, boost::mpl::bool_<true>, bool noeof)
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{
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return s.good();
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}
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/*! \fn do_check_stream_state
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*
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* \brief self explanatory
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*
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* \detailed Also checks to make sure that the stream is not at EOF
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*/
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template<class Stream>
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bool do_check_stream_state(Stream& s, boost::mpl::bool_<false>, bool noeof)
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{
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bool result = false;
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if (s.good())
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{
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std::ios_base::iostate state = s.rdstate();
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result = noeof || EOF == s.peek();
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s.clear(state);
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}
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return result;
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}
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}
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/*! \fn check_stream_state
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*
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* \brief calls detail::do_check_stream_state for ar
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*/
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template<class Archive>
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bool check_stream_state(Archive& ar, bool noeof = false)
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{
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return detail::do_check_stream_state(ar.stream(), typename Archive::is_saving(), noeof);
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}
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/*! \fn serialize
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*
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* \brief serializes \a v into \a ar
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*/
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template <class Archive, class T>
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inline bool serialize(Archive &ar, T &v)
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{
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bool r = do_serialize(ar, v);
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return r && check_stream_state(ar, false);
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}
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/*! \fn serialize
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*
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* \brief serializes \a v into \a ar
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*/
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template <class Archive, class T>
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inline bool serialize_noeof(Archive &ar, T &v)
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{
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bool r = do_serialize(ar, v);
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return r && check_stream_state(ar, true);
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}
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}
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