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Memory overflow detection when packing/unpacking BLOB added

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This commit is contained in:
Simon Rozman
2016-07-20 19:29:21 +02:00
parent 2f4425f38c
commit 51428d290f
14 changed files with 168 additions and 119 deletions
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24
lib/EAPBase/include/Config.h
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@@ -53,7 +53,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[in] val Configuration to pack
///
inline void pack(_Inout_ unsigned char *&cursor, _In_ const eap::config &val);
inline void pack(_Inout_ cursor_out &cursor, _In_ const eap::config &val);
///
/// Returns packed size of a configuration
@@ -70,7 +70,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[out] val Configuration to unpack to
///
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ eap::config &val);
inline void unpack(_Inout_ cursor_in &cursor, _Out_ eap::config &val);
}
#pragma once
@@ -181,7 +181,7 @@ namespace eap
///
/// \param[inout] cursor Memory cursor
///
virtual void pack(_Inout_ unsigned char *&cursor) const;
virtual void pack(_Inout_ eapserial::cursor_out &cursor) const;
///
/// Returns packed size of a configuration
@@ -195,7 +195,7 @@ namespace eap
///
/// \param[inout] cursor Memory cursor
///
virtual void unpack(_Inout_ const unsigned char *&cursor);
virtual void unpack(_Inout_ eapserial::cursor_in &cursor);
/// @}
@@ -288,7 +288,7 @@ namespace eap
///
/// \param[inout] cursor Memory cursor
///
virtual void pack(_Inout_ unsigned char *&cursor) const;
virtual void pack(_Inout_ eapserial::cursor_out &cursor) const;
///
/// Returns packed size of a configuration
@@ -302,7 +302,7 @@ namespace eap
///
/// \param[inout] cursor Memory cursor
///
virtual void unpack(_Inout_ const unsigned char *&cursor);
virtual void unpack(_Inout_ eapserial::cursor_in &cursor);
/// @}
@@ -412,7 +412,7 @@ namespace eap
///
/// \param[inout] cursor Memory cursor
///
virtual void pack(_Inout_ unsigned char *&cursor) const;
virtual void pack(_Inout_ eapserial::cursor_out &cursor) const;
///
/// Returns packed size of a configuration
@@ -426,7 +426,7 @@ namespace eap
///
/// \param[inout] cursor Memory cursor
///
virtual void unpack(_Inout_ const unsigned char *&cursor);
virtual void unpack(_Inout_ eapserial::cursor_in &cursor);
/// @}
@@ -531,7 +531,7 @@ namespace eap
///
/// \param[inout] cursor Memory cursor
///
virtual void pack(_Inout_ unsigned char *&cursor) const;
virtual void pack(_Inout_ eapserial::cursor_out &cursor) const;
///
/// Returns packed size of a configuration
@@ -545,7 +545,7 @@ namespace eap
///
/// \param[inout] cursor Memory cursor
///
virtual void unpack(_Inout_ const unsigned char *&cursor);
virtual void unpack(_Inout_ eapserial::cursor_in &cursor);
/// @}
@@ -557,7 +557,7 @@ namespace eap
namespace eapserial
{
inline void pack(_Inout_ unsigned char *&cursor, _In_ const eap::config &val)
inline void pack(_Inout_ cursor_out &cursor, _In_ const eap::config &val)
{
val.pack(cursor);
}
@@ -569,7 +569,7 @@ namespace eapserial
}
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ eap::config &val)
inline void unpack(_Inout_ cursor_in &cursor, _Out_ eap::config &val)
{
val.unpack(cursor);
}

4
lib/EAPBase/include/Credentials.h
View File

@@ -293,7 +293,7 @@ namespace eap
///
/// \param[inout] cursor Memory cursor
///
virtual void pack(_Inout_ unsigned char *&cursor) const;
virtual void pack(_Inout_ eapserial::cursor_out &cursor) const;
///
/// Returns packed size of a configuration
@@ -307,7 +307,7 @@ namespace eap
///
/// \param[inout] cursor Memory cursor
///
virtual void unpack(_Inout_ const unsigned char *&cursor);
virtual void unpack(_Inout_ eapserial::cursor_in &cursor);
/// @}

193
lib/EAPBase/include/EAP.h
View File

@@ -48,13 +48,23 @@ namespace eap
namespace eapserial
{
///
/// Output BLOB cursor
///
struct cursor_out;
///
/// Input BLOB cursor
///
struct cursor_in;
///
/// Packs a boolean
///
/// \param[inout] cursor Memory cursor
/// \param[in] val Variable with data to pack
///
inline void pack(_Inout_ unsigned char *&cursor, _In_ const bool &val);
inline void pack(_Inout_ cursor_out &cursor, _In_ const bool &val);
///
/// Returns packed size of a boolean
@@ -71,7 +81,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[out] val Variable to receive unpacked value
///
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ bool &val);
inline void unpack(_Inout_ cursor_in &cursor, _Out_ bool &val);
///
/// Packs a byte
@@ -79,7 +89,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[in] val Variable with data to pack
///
inline void pack(_Inout_ unsigned char *&cursor, _In_ const unsigned char &val);
inline void pack(_Inout_ cursor_out &cursor, _In_ const unsigned char &val);
///
/// Returns packed size of a byte
@@ -96,7 +106,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[out] val Variable to receive unpacked value
///
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ unsigned char &val);
inline void unpack(_Inout_ cursor_in &cursor, _Out_ unsigned char &val);
///
/// Packs an unsigned int
@@ -104,7 +114,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[in] val Variable with data to pack
///
inline void pack(_Inout_ unsigned char *&cursor, _In_ const unsigned int &val);
inline void pack(_Inout_ cursor_out &cursor, _In_ const unsigned int &val);
///
/// Returns packed size of an unsigned int
@@ -121,7 +131,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[out] val Variable to receive unpacked value
///
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ unsigned int &val);
inline void unpack(_Inout_ cursor_in &cursor, _Out_ unsigned int &val);
#ifdef _WIN64
///
@@ -130,7 +140,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[in] val Variable with data to pack
///
inline void pack(_Inout_ unsigned char *&cursor, _In_ const size_t &val);
inline void pack(_Inout_ cursor_out &cursor, _In_ const size_t &val);
///
/// Returns packed size of a size_t
@@ -147,7 +157,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[out] val Variable to receive unpacked value
///
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ size_t &val);
inline void unpack(_Inout_ cursor_in &cursor, _Out_ size_t &val);
#endif
///
@@ -156,7 +166,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[in] val String to pack
///
template<class _Elem, class _Traits, class _Ax> inline void pack(_Inout_ unsigned char *&cursor, _In_ const std::basic_string<_Elem, _Traits, _Ax> &val);
template<class _Elem, class _Traits, class _Ax> inline void pack(_Inout_ cursor_out &cursor, _In_ const std::basic_string<_Elem, _Traits, _Ax> &val);
///
/// Returns packed size of a string
@@ -173,7 +183,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[out] val String to unpack to
///
template<class _Elem, class _Traits, class _Ax> inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ std::basic_string<_Elem, _Traits, _Ax> &val);
template<class _Elem, class _Traits, class _Ax> inline void unpack(_Inout_ cursor_in &cursor, _Out_ std::basic_string<_Elem, _Traits, _Ax> &val);
///
/// Packs a wide string
@@ -181,7 +191,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[in] val String to pack
///
template<class _Traits, class _Ax> inline void pack(_Inout_ unsigned char *&cursor, _In_ const std::basic_string<wchar_t, _Traits, _Ax> &val);
template<class _Traits, class _Ax> inline void pack(_Inout_ cursor_out &cursor, _In_ const std::basic_string<wchar_t, _Traits, _Ax> &val);
///
/// Returns packed size of a wide string
@@ -198,7 +208,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[out] val String to unpack to
///
template<class _Traits, class _Ax> inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ std::basic_string<wchar_t, _Traits, _Ax> &val);
template<class _Traits, class _Ax> inline void unpack(_Inout_ cursor_in &cursor, _Out_ std::basic_string<wchar_t, _Traits, _Ax> &val);
///
/// Packs a vector
@@ -206,7 +216,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[in] val Vector to pack
///
template<class _Ty, class _Ax> inline void pack(_Inout_ unsigned char *&cursor, _In_ const std::vector<_Ty, _Ax> &val);
template<class _Ty, class _Ax> inline void pack(_Inout_ cursor_out &cursor, _In_ const std::vector<_Ty, _Ax> &val);
///
/// Returns packed size of a vector
@@ -223,7 +233,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[out] val Vector to unpack to
///
template<class _Ty, class _Ax> inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ std::vector<_Ty, _Ax> &val);
template<class _Ty, class _Ax> inline void unpack(_Inout_ cursor_in &cursor, _Out_ std::vector<_Ty, _Ax> &val);
///
/// Packs a list
@@ -231,7 +241,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[in] val List to pack
///
template<class _Ty, class _Ax> inline void pack(_Inout_ unsigned char *&cursor, _In_ const std::list<_Ty, _Ax> &val);
template<class _Ty, class _Ax> inline void pack(_Inout_ cursor_out &cursor, _In_ const std::list<_Ty, _Ax> &val);
///
/// Returns packed size of a list
@@ -248,7 +258,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[out] val List to unpack to
///
template<class _Ty, class _Ax> inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ std::list<_Ty, _Ax> &val);
template<class _Ty, class _Ax> inline void unpack(_Inout_ cursor_in &cursor, _Out_ std::list<_Ty, _Ax> &val);
///
/// Packs a std::unique_ptr
@@ -256,7 +266,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[in] val std::unique_ptr to pack
///
template<class _Ty, class _Dx> inline void pack(_Inout_ unsigned char *&cursor, _In_ const std::unique_ptr<_Ty, _Dx> &val);
template<class _Ty, class _Dx> inline void pack(_Inout_ cursor_out &cursor, _In_ const std::unique_ptr<_Ty, _Dx> &val);
///
/// Returns packed size of a std::unique_ptr
@@ -275,7 +285,7 @@ namespace eapserial
///// \param[inout] cursor Memory cursor
///// \param[out] val std::unique_ptr to unpack to
/////
//template<class _Ty, class _Dx> inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ std::unique_ptr<_Ty, _Dx> &val);
//template<class _Ty, class _Dx> inline void unpack(_Inout_ cursor_in &cursor, _Out_ std::unique_ptr<_Ty, _Dx> &val);
///
/// Packs a certificate context
@@ -283,7 +293,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[in] val Certificate context to pack
///
inline void pack(_Inout_ unsigned char *&cursor, _In_ const winstd::cert_context &val);
inline void pack(_Inout_ cursor_out &cursor, _In_ const winstd::cert_context &val);
///
/// Returns packed size of a certificate context
@@ -300,7 +310,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[out] val Certificate context to unpack to
///
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ winstd::cert_context &val);
inline void unpack(_Inout_ cursor_in &cursor, _Out_ winstd::cert_context &val);
///
/// Packs an EAP method type
@@ -308,7 +318,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[in] val EAP method type to pack
///
inline void pack(_Inout_ unsigned char *&cursor, _In_ const eap::type_t &val);
inline void pack(_Inout_ cursor_out &cursor, _In_ const eap::type_t &val);
///
/// Returns packed size of an EAP method type
@@ -325,7 +335,7 @@ namespace eapserial
/// \param[inout] cursor Memory cursor
/// \param[out] val EAP method type to unpack to
///
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ eap::type_t &val);
inline void unpack(_Inout_ cursor_in &cursor, _Out_ eap::type_t &val);
}
#pragma once
@@ -346,10 +356,29 @@ namespace eap
namespace eapserial
{
inline void pack(_Inout_ unsigned char *&cursor, _In_ const bool &val)
struct cursor_out
{
*cursor = val ? 1 : 0;
cursor++;
typedef unsigned char *ptr_type;
ptr_type ptr; ///< Pointer to first data unwritten
ptr_type ptr_end; ///< Pointer to the end of available memory
};
struct cursor_in
{
typedef const unsigned char *ptr_type;
ptr_type ptr; ///< Pointer to first data unread
ptr_type ptr_end; ///< Pointer to the end of BLOB
};
inline void pack(_Inout_ cursor_out &cursor, _In_ const bool &val)
{
cursor_out::ptr_type ptr_end = cursor.ptr + 1;
assert(ptr_end <= cursor.ptr_end);
*cursor.ptr = val ? 1 : 0;
cursor.ptr = ptr_end;
}
@@ -360,17 +389,21 @@ namespace eapserial
}
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ bool &val)
inline void unpack(_Inout_ cursor_in &cursor, _Out_ bool &val)
{
val = *cursor ? true : false;
cursor++;
cursor_in::ptr_type ptr_end = cursor.ptr + 1;
assert(ptr_end <= cursor.ptr_end);
val = *cursor.ptr ? true : false;
cursor.ptr = ptr_end;
}
inline void pack(_Inout_ unsigned char *&cursor, _In_ const unsigned char &val)
inline void pack(_Inout_ cursor_out &cursor, _In_ const unsigned char &val)
{
*cursor = val;
cursor++;
cursor_out::ptr_type ptr_end = cursor.ptr + 1;
assert(ptr_end <= cursor.ptr_end);
*cursor.ptr = val;
cursor.ptr = ptr_end;
}
@@ -381,17 +414,21 @@ namespace eapserial
}
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ unsigned char &val)
inline void unpack(_Inout_ cursor_in &cursor, _Out_ unsigned char &val)
{
val = *cursor;
cursor++;
cursor_in::ptr_type ptr_end = cursor.ptr + 1;
assert(ptr_end <= cursor.ptr_end);
val = *cursor.ptr;
cursor.ptr = ptr_end;
}
inline void pack(_Inout_ unsigned char *&cursor, _In_ const unsigned int &val)
inline void pack(_Inout_ cursor_out &cursor, _In_ const unsigned int &val)
{
*(unsigned int*)cursor = val;
cursor += sizeof(unsigned int);
cursor_out::ptr_type ptr_end = cursor.ptr + sizeof(unsigned int);
assert(ptr_end <= cursor.ptr_end);
*(unsigned int*)cursor.ptr = val;
cursor.ptr = ptr_end;
}
@@ -402,18 +439,22 @@ namespace eapserial
}
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ unsigned int &val)
inline void unpack(_Inout_ cursor_in &cursor, _Out_ unsigned int &val)
{
val = *(unsigned int*)cursor;
cursor += sizeof(unsigned int);
cursor_in::ptr_type ptr_end = cursor.ptr + sizeof(unsigned int);
assert(ptr_end <= cursor.ptr_end);
val = *(unsigned int*)cursor.ptr;
cursor.ptr = ptr_end;
}
#ifdef _WIN64
inline void pack(_Inout_ unsigned char *&cursor, _In_ const size_t &val)
inline void pack(_Inout_ cursor_out &cursor, _In_ const size_t &val)
{
*(size_t*)cursor = val;
cursor += sizeof(size_t);
cursor_out::ptr_type ptr_end = cursor.ptr + sizeof(size_t);
assert(ptr_end <= cursor.ptr_end);
*(size_t*)cursor.ptr = val;
cursor.ptr = ptr_end;
}
@@ -424,22 +465,26 @@ namespace eapserial
}
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ size_t &val)
inline void unpack(_Inout_ cursor_in &cursor, _Out_ size_t &val)
{
val = *(size_t*)cursor;
cursor += sizeof(size_t);
cursor_in::ptr_type ptr_end = cursor.ptr + sizeof(size_t);
assert(ptr_end <= cursor.ptr_end);
val = *(size_t*)cursor.ptr;
cursor.ptr = ptr_end;
}
#endif
template<class _Elem, class _Traits, class _Ax>
inline void pack(_Inout_ unsigned char *&cursor, _In_ const std::basic_string<_Elem, _Traits, _Ax> &val)
inline void pack(_Inout_ cursor_out &cursor, _In_ const std::basic_string<_Elem, _Traits, _Ax> &val)
{
std::basic_string<_Elem, _Traits, _Ax>::size_type count = val.length();
assert(strlen(val.c_str()) == count); // String should not contain null characters
size_t nSize = sizeof(_Elem)*(count + 1);
memcpy(cursor, (const _Elem*)val.c_str(), nSize);
cursor += nSize;
assert(strlen(val.c_str()) == count); // String should not contain zero terminators.
size_t size = sizeof(_Elem)*(count + 1);
cursor_out::ptr_type ptr_end = cursor.ptr + size;
assert(ptr_end <= cursor.ptr_end);
memcpy(cursor.ptr, (const _Elem*)val.c_str(), size);
cursor.ptr = ptr_end;
}
@@ -451,16 +496,18 @@ namespace eapserial
template<class _Elem, class _Traits, class _Ax>
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ std::basic_string<_Elem, _Traits, _Ax> &val)
inline void unpack(_Inout_ cursor_in &cursor, _Out_ std::basic_string<_Elem, _Traits, _Ax> &val)
{
std::basic_string<_Elem, _Traits, _Ax>::size_type count = strlen((const _Elem*&)cursor);
val.assign((const _Elem*&)cursor, count);
cursor += sizeof(_Elem)*(count + 1);
size_t count_max = cursor.ptr_end - cursor.ptr;
std::basic_string<_Elem, _Traits, _Ax>::size_type count = strnlen((const _Elem*&)cursor.ptr, count_max);
assert(count < count_max); // String should be zero terminated.
val.assign((const _Elem*&)cursor.ptr, count);
cursor.ptr += sizeof(_Elem)*(count + 1);
}
template<class _Traits, class _Ax>
inline void pack(_Inout_ unsigned char *&cursor, _In_ const std::basic_string<wchar_t, _Traits, _Ax> &val)
inline void pack(_Inout_ cursor_out &cursor, _In_ const std::basic_string<wchar_t, _Traits, _Ax> &val)
{
std::string val_utf8;
WideCharToMultiByte(CP_UTF8, 0, val.c_str(), (int)val.length(), val_utf8, NULL, NULL);
@@ -471,12 +518,12 @@ namespace eapserial
template<class _Traits, class _Ax>
inline size_t get_pk_size(const std::basic_string<wchar_t, _Traits, _Ax> &val)
{
return sizeof(std::string::size_type) + WideCharToMultiByte(CP_UTF8, 0, val.c_str(), (int)val.length(), NULL, 0, NULL, NULL);
return sizeof(char)*(WideCharToMultiByte(CP_UTF8, 0, val.c_str(), (int)val.length(), NULL, 0, NULL, NULL) + 1);
}
template<class _Traits, class _Ax>
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ std::basic_string<wchar_t, _Traits, _Ax> &val)
inline void unpack(_Inout_ cursor_in &cursor, _Out_ std::basic_string<wchar_t, _Traits, _Ax> &val)
{
std::string val_utf8;
unpack(cursor, val_utf8);
@@ -485,7 +532,7 @@ namespace eapserial
template<class _Ty, class _Ax>
inline void pack(_Inout_ unsigned char *&cursor, _In_ const std::vector<_Ty, _Ax> &val)
inline void pack(_Inout_ cursor_out &cursor, _In_ const std::vector<_Ty, _Ax> &val)
{
std::vector<_Ty, _Ax>::size_type count = val.size();
pack(cursor, count);
@@ -511,7 +558,7 @@ namespace eapserial
template<class _Ty, class _Ax>
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ std::vector<_Ty, _Ax> &val)
inline void unpack(_Inout_ cursor_in &cursor, _Out_ std::vector<_Ty, _Ax> &val)
{
std::vector<_Ty, _Ax>::size_type count;
unpack(cursor, count);
@@ -529,7 +576,7 @@ namespace eapserial
template<class _Ty, class _Ax>
inline void pack(_Inout_ unsigned char *&cursor, _In_ const std::list<_Ty, _Ax> &val)
inline void pack(_Inout_ cursor_out &cursor, _In_ const std::list<_Ty, _Ax> &val)
{
std::list<_Ty, _Ax>::size_type count = val.size();
pack(cursor, count);
@@ -555,7 +602,7 @@ namespace eapserial
template<class _Ty, class _Ax>
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ std::list<_Ty, _Ax> &val)
inline void unpack(_Inout_ cursor_in &cursor, _Out_ std::list<_Ty, _Ax> &val)
{
std::list<_Ty, _Ax>::size_type count;
unpack(cursor, count);
@@ -572,7 +619,7 @@ namespace eapserial
template<class _Ty, class _Dx>
inline void pack(_Inout_ unsigned char *&cursor, _In_ const std::unique_ptr<_Ty, _Dx> &val)
inline void pack(_Inout_ cursor_out &cursor, _In_ const std::unique_ptr<_Ty, _Dx> &val)
{
if (val) {
pack(cursor, true);
@@ -593,13 +640,15 @@ namespace eapserial
}
inline void pack(_Inout_ unsigned char *&cursor, _In_ const winstd::cert_context &val)
inline void pack(_Inout_ cursor_out &cursor, _In_ const winstd::cert_context &val)
{
if (val) {
pack(cursor, (unsigned int)val->dwCertEncodingType);
pack(cursor, (unsigned int)val->cbCertEncoded );
memcpy(cursor, val->pbCertEncoded, val->cbCertEncoded);
cursor += val->cbCertEncoded;
cursor_out::ptr_type ptr_end = cursor.ptr + val->cbCertEncoded;
assert(ptr_end <= cursor.ptr_end);
memcpy(cursor.ptr, val->pbCertEncoded, val->cbCertEncoded);
cursor.ptr = ptr_end;
} else {
pack(cursor, (unsigned int)0);
pack(cursor, (unsigned int)0);
@@ -619,7 +668,7 @@ namespace eapserial
}
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ winstd::cert_context &val)
inline void unpack(_Inout_ cursor_in &cursor, _Out_ winstd::cert_context &val)
{
DWORD dwCertEncodingType;
unpack(cursor, (unsigned int&)dwCertEncodingType);
@@ -628,14 +677,16 @@ namespace eapserial
unpack(cursor, (unsigned int&)dwCertEncodedSize);
if (dwCertEncodedSize) {
val.create(dwCertEncodingType, (BYTE*)cursor, dwCertEncodedSize);
cursor += dwCertEncodedSize;
cursor_in::ptr_type ptr_end = cursor.ptr + dwCertEncodedSize;
assert(ptr_end <= cursor.ptr_end);
val.create(dwCertEncodingType, (BYTE*)cursor.ptr, dwCertEncodedSize);
cursor.ptr = ptr_end;
} else
val.free();
}
inline void pack(_Inout_ unsigned char *&cursor, _In_ const eap::type_t &val)
inline void pack(_Inout_ cursor_out &cursor, _In_ const eap::type_t &val)
{
pack(cursor, (unsigned char)val);
}
@@ -647,7 +698,7 @@ namespace eapserial
}
inline void unpack(_Inout_ const unsigned char *&cursor, _Out_ eap::type_t &val)
inline void unpack(_Inout_ cursor_in &cursor, _Out_ eap::type_t &val)
{
unsigned char t;
unpack(cursor, t);

14
lib/EAPBase/include/Module.h
View File

@@ -561,15 +561,13 @@ namespace eap
if (!decrypt_md5(cp, pDataIn, dwDataInSize, data, ppEapError))
return false;
const unsigned char *cursor = data.data();
eapserial::cursor_in cursor = { data.data(), data.data() + data.size() };
eapserial::unpack(cursor, record);
assert(cursor - data.data() <= (ptrdiff_t)data.size());
#else
UNREFERENCED_PARAMETER(ppEapError);
const unsigned char *cursor = pDataIn;
eapserial::cursor_in cursor = { pDataIn, pDataIn + dwDataInSize };
eapserial::unpack(cursor, record);
assert(cursor - pDataIn <= (ptrdiff_t)dwDataInSize);
#endif
return true;
@@ -601,9 +599,9 @@ namespace eap
data.resize(eapserial::get_pk_size(record));
// Pack to BLOB.
unsigned char *cursor = data.data();
eapserial::cursor_out cursor = { data.data(), data.data() + data.size() };
eapserial::pack(cursor, record);
data.resize(cursor - data.data());
data.resize(cursor.ptr - &data.front());
// Prepare cryptographics provider.
winstd::crypt_prov cp;
@@ -639,9 +637,9 @@ namespace eap
}
// Pack to BLOB.
unsigned char *cursor = *ppDataOut;
eapserial::cursor_out cursor = { *ppDataOut, *ppDataOut + *pdwDataOutSize };
eapserial::pack(cursor, record);
assert(cursor - *ppDataOut <= (ptrdiff_t)*pdwDataOutSize);
*pdwDataOutSize = cursor.ptr - *ppDataOut;
#endif
return true;