[zeromq-dev] Implementing zeromq security

Riskybiz riskybizlive at live.com
Sun Dec 14 14:24:40 CET 2014

Thanks for the suggestions on how to build zeromq-4.0.4 with libsodium curve
security on Windows using the Visual Studio 2013 solution file.  


Getting warmer but there are still some issues...


I've made this modification;


builds/msvc/platform.hpp  added: #define HAVE_LIBSODIUM 1


And also set the added these configuration options in the Visual Studio 2013
zeromq solution for the libzmq project;


Set to 'Release' mode.


C/C++ -> General-> Additional Include Directories ->


Linker -> General -> Additional Library Directories ->
C:\libsodium\bin\Win32\Release\v120\static  N.B. Also tried the \dynamic
folder but without luck.


Linker -> Input -> AdditionalDependencies -> libsodium.lib


The zeromq build is now looking for the libsodium files but gives the build


Error      4              error LNK1120: 3 unresolved externals
C:\zeromq-4.0.4\bin\Win32\libzmq.dll   libzmq

Error      2              error LNK2001: unresolved external symbol "public:
__thiscall zmq::curve_client_t::curve_client_t(struct zmq::options_t const
&)" (??0curve_client_t at zmq@@QAE at ABUoptions_t@1@@Z)
C:\zeromq-4.0.4\builds\msvc\libzmq\stream_engine.obj    libzmq

Error      1              error LNK2001: unresolved external symbol "public:
__thiscall zmq::curve_server_t::curve_server_t(class zmq::session_base_t
*,class std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char> > const &,struct zmq::options_t const &)"
(??0curve_server_t at zmq@@QAE at PAVsession_base_t@1 at ABV?$basic_string at DU?$char_t
raits at D@std@@V?$allocator at D@2@@std@@ABUoptions_t at 1@@Z)
C:\zeromq-4.0.4\builds\msvc\libzmq\stream_engine.obj    libzmq

Error      3              error LNK2001: unresolved external symbol
C:\zeromq-4.0.4\builds\msvc\libzmq\zmq_utils.obj               libzmq



I'm not really sure of which build options to set there is the choice of:
Debug, Release, Static Debug, Static Release, WithOpenPGM in the zeromq
build and then the dynamic, static or ltcg folders to link against in the
libsodium structure.  I've tried various options which seem sensible but am
really just pressing the buttons without understanding the implications of
the differences!


Anyone have any further suggestions?






P.S. I've also considered the suggested options at
http://lists.zeromq.org/pipermail/zeromq-dev/2014-November/027804.html but
am unable to find any project or solution configuration setting relating to;


(1) Properties->Configuration Properties->ZMQ Options->sodium->Enable

Sodium value to 'No'

(2) Properties->Configuration Properties->Local

Dependencies->libsodium->Linkage to 'Not Linked'


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