OpenSSL 1.0.0-FIPS Symbol Lookup Error

I wrote a C++ SSL Socket class that uses the OpenSSL API. The version of OpenSSL I am using is "OpenSSL 1.0.0-fips" if that matters. This class belongs to a shared library that I have written.

I am trying to write a bare bones unit test of my class and I cannot get the SSL_CTX structure to allocate.

Here is my header file:

#ifndef __TDLS_SSL_SOCKET_HPP__
#define __TDLS_SSL_SOCKET_HPP__

#include <stdexcept>

#include <openssl/ssl.h>
#include <openssl/x509v3.h>
#include <openssl/err.h>

class TdlsSSLSocket
{
public:
  TdlsSSLSocket(const SSL_METHOD* method);
protected:
  SSL_CTX* ctx;
};

#endif

Here is the implementation of the constructor:

#include "TdlsSSLSocket.hpp"

TdlsSSLSocket::TdlsSSLSocket(const SSL_METHOD* method)
{
  ctx = SSL_CTX_new(method);
  if(!ctx)
  {
    throw std::runtime_error("Failed to initialize SSL CTX object");
  }
}

Here is how I compile this source code:

g++  -fPIC -g -O2 -Wall  -c -o TdlsSSLSocket.o TdlsSSLSocket.cpp
ld -r TdlsTCPSocket.o TdlsTCPClient.o TdlsTCPServer.o ReferenceCounter.o TdlsSSLSocket.o -o socket.o

Here is how I create the shared library:

g++ -shared -Wl,-soname,libttshared.so.2 -lssl -o libttshared.so.2.0 logger/log.o conf/conf_objs.o seq/seq.o socket/socket.o

Here is my C++ unit test where I attempt to exercise the class.

#include <iostream>

#include "TdlsSSLSocket.hpp"

using namespace std;

int main(int argc, char* argv[])
{

  SSL_library_init();
  SSL_load_error_strings();

  TdlsSSLSocket ssl_server(TLSv1_method());

}

And I build it like so:

g++ -o TestSSLServer TestSSLServer.o ../../libttshared.so -L../.. -lttshared

And when I execute the unit test, I get the following error:

[tlytle@vraptor3 test]$ TestSSLServer
TestSSLServer: symbol lookup error: TestSSLServer: undefined symbol: _ZN13TdlsSSLSocketC1EPK13ssl_method_st

The strange undefined symbol _ZN13TdlsSSLSocketC1EPK13ssl_method_st almost looks like C++ name mangling could be the culprit. But, I tried wrapping the class in extern "C" but I got the same error.

Any suggestions?

Solution

For anyone who reads this, the problem was not the OpenSSL library. The undefined symbol problem means that the linker could not resolve the given symbol. I performed a ldd on the unit test binary TestSSLServer and it revealed that I was not linking to the current version of libttshared.so. I set my LD_LIBRARY_PATH variable to include the directory of the new shared library and the program executed successfully.