eive/fsfw
eive/fsfw
15
1
Fork 0
forked from fsfw/fsfw
Code Issues Pull Requests Releases 1 Wiki Activity

Removed old hacks and replaced by standard c++

Browse Source 
Added overflow check in SerializeAdapter
This commit is contained in:
Steffen Gaisser 2020-09-07 18:06:08 +02:00
parent 278053a342
commit b65789824c
2 changed files with 18 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
container/IsDerivedFrom.h
View File

@ -1,41 +0,0 @@
#ifndef ISDERIVEDFROM_H_
#define ISDERIVEDFROM_H_
template<typename D, typename B>
class IsDerivedFrom {
class No {
};
class Yes {
No no[3];
};
static Yes Test(B*); // declared, but not defined
static No Test(... ); // declared, but not defined
public:
enum {
Is = sizeof(Test(static_cast<D*>(0))) == sizeof(Yes)
};
};
template<typename, typename>
struct is_same {
static bool const value = false;
};
template<typename A>
struct is_same<A, A> {
static bool const value = true;
};
template<bool C, typename T = void>
struct enable_if {
typedef T type;
};
template<typename T>
struct enable_if<false, T> { };
#endif /* ISDERIVEDFROM_H_ */

32
serialize/SerializeAdapter.h
View File

@ -1,11 +1,11 @@
#ifndef SERIALIZEADAPTER_H_ #ifndef SERIALIZEADAPTER_H_
#define SERIALIZEADAPTER_H_ #define SERIALIZEADAPTER_H_
#include "../container/IsDerivedFrom.h"
#include "../returnvalues/HasReturnvaluesIF.h" #include "../returnvalues/HasReturnvaluesIF.h"
#include "EndianConverter.h" #include "EndianConverter.h"
#include "SerializeIF.h" #include "SerializeIF.h"
#include <string.h> #include <string.h>
#include <type_traits>
/** /**
* \ingroup serialize * \ingroup serialize
@ -15,34 +15,39 @@ class SerializeAdapter {
public: public:
template<typename T> template<typename T>
static ReturnValue_t serialize(const T *object, uint8_t **buffer, static ReturnValue_t serialize(const T *object, uint8_t **buffer,
size_t *size, size_t maxSize, SerializeIF::Endianness streamEndianness) { size_t *size, size_t maxSize,
InternalSerializeAdapter<T, IsDerivedFrom<T, SerializeIF>::Is> adapter; SerializeIF::Endianness streamEndianness) {
InternalSerializeAdapter<T, std::is_base_of<SerializeIF, T>::value> adapter;
return adapter.serialize(object, buffer, size, maxSize, return adapter.serialize(object, buffer, size, maxSize,
streamEndianness); streamEndianness);
} }
template<typename T> template<typename T>
static uint32_t getSerializedSize(const T *object) { static uint32_t getSerializedSize(const T *object) {
InternalSerializeAdapter<T, IsDerivedFrom<T, SerializeIF>::Is> adapter; InternalSerializeAdapter<T, std::is_base_of<SerializeIF, T>::value> adapter;
return adapter.getSerializedSize(object); return adapter.getSerializedSize(object);
} }
template<typename T> template<typename T>
static ReturnValue_t deSerialize(T *object, const uint8_t **buffer, static ReturnValue_t deSerialize(T *object, const uint8_t **buffer,
size_t *size, SerializeIF::Endianness streamEndianness) { size_t *size, SerializeIF::Endianness streamEndianness) {
InternalSerializeAdapter<T, IsDerivedFrom<T, SerializeIF>::Is> adapter; InternalSerializeAdapter<T, std::is_base_of<SerializeIF, T>::value> adapter;
return adapter.deSerialize(object, buffer, size, streamEndianness); return adapter.deSerialize(object, buffer, size, streamEndianness);
} }
private: private:
template<typename T, int> template<typename T, bool> class InternalSerializeAdapter;
class InternalSerializeAdapter {
template<typename T>
class InternalSerializeAdapter<T, false> {
public: public:
static ReturnValue_t serialize(const T *object, uint8_t **buffer, static ReturnValue_t serialize(const T *object, uint8_t **buffer,
size_t *size, size_t max_size, SerializeIF::Endianness streamEndianness) { size_t *size, size_t max_size,
SerializeIF::Endianness streamEndianness) {
size_t ignoredSize = 0; size_t ignoredSize = 0;
if (size == NULL) { if (size == NULL) {
size = &ignoredSize; size = &ignoredSize;
} }
//TODO check integer overflow of *size //Check remaining size is large enough and check integer overflow of *size
if (sizeof(T) + *size <= max_size) { size_t newSize = sizeof(T) + *size;
if ((newSize <= max_size) and (newSize > *size)) {
T tmp; T tmp;
switch (streamEndianness) { switch (streamEndianness) {
case SerializeIF::Endianness::BIG: case SerializeIF::Endianness::BIG:
@ -94,14 +99,13 @@ private:
uint32_t getSerializedSize(const T *object) { uint32_t getSerializedSize(const T *object) {
return sizeof(T); return sizeof(T);
} }
}; };
template<typename T> template<typename T>
class InternalSerializeAdapter<T, 1> { class InternalSerializeAdapter<T, true> {
public: public:
ReturnValue_t serialize(const T *object, uint8_t **buffer, ReturnValue_t serialize(const T *object, uint8_t **buffer, size_t *size,
size_t *size, size_t max_size, size_t max_size,
SerializeIF::Endianness streamEndianness) const { SerializeIF::Endianness streamEndianness) const {
size_t ignoredSize = 0; size_t ignoredSize = 0;
if (size == NULL) { if (size == NULL) {