[stunnel-users] Windows Firewall has blocked some features of thisprogram

Tue Mar 22 19:17:35 CET 2011

Hi Josealf,

Thank you for your response and for this information. Is there a VB script
or other method I can use for this purpose? I use a signed Java applet to
download, install, and execute stunnel, but can insert a step to run a VB
or other script on the host prior. I suspect the stunnel installer may do
this already, but after looking, did not see anything.

Thank you

> You can add the required firewall exceptions as part of your installation
> tasks. You just need to allow connections to the incoming port(s) your
> stunnel config use.
>
> -----Original Message-----
> From: jay at experts-exchange.com
> Sender: stunnel-users-bounces at stunnel.org
> Date: Mon, 21 Mar 2011 17:39:11
> To: <stunnel-users at stunnel.org>
> Subject: [stunnel-users] Windows Firewall has blocked some features of
> this
> 	program
>
> Folks,
>
> While bundling stunnel with my user application, upon kick off I see this
> error message.*1 Is there a way to avoid this security warning? I am
> trying to figure out if signing the binaries will escape this situation,
> or if it is related to the binary not containing a string table. I
> investigated linking the win32 binary with MS Visual Studio 2005 to see
> if
> the presence of the version string info in the binary would help*2, but
> so
> far I have been unable to directly link. I originally built stunnel using
> cygwin's mingw32-gcc*3, so linking using MSDEV is not too easy.*4
>
> Thanks
>
>
> Refs:
> *1 "Windows Security Alert. To help protect your computer, Windows
> Firewall has blocked some features of this program. Do you want to keep
> blocking this program? Name:      stunnel Publisher: Unknown"
>
> *2 stunnel/src/version.rc,
>
> // pdelaage TODO 20101111: this file works with MS VC / EVC
> // But with MINGW, properties are NOT displayed in Windows Explorer
> // although they are embedded in the final exe program.
> // anyway, using a .o coming from MS VC does not change anything,
> // and linking the gcc version.o with ms tools works!
> // so the problem is in fact in gcc-linking, not in version.o.
>
>
> *2 mingw64-i686-gcc-core     4.5.1-2
>
> Administrator at MSDN-2005-DEV /cygdrive/c/dl/stunnel/stunnel-4.35/src
> $ i686-w64-mingw32-gcc-4.5.1 -s -o stunnel.exe file.obj client.obj
> log.obj
> options.obj protocol.obj network.obj resolver.obj ssl.obj ctx.obj
> verify.obj sthreads.obj stunnel.obj gui.obj resources.obj
> -L/cygdrive/c/openssl/lib -L/cygdrive/c/dl/stunnel/zlib-1.2.5
> -lcrypto.dll
> -lssl.dll  -lz -lws2_32 -lgdi32 -mwindows -v
> Using built-in specs.
> COLLECT_GCC=i686-w64-mingw32-gcc-4.5.1
> COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-w64-mingw32/4.5.1/lto-wrapper.exe
> Target: i686-w64-mingw32
> Configured with:
> /cygdrive/c/nnnew/gcc32/mingw64-i686-gcc-4.5.1-2/src/gcc-4.5.1/configure
> --srcdir=/cygdrive/c/nnnew/gcc32/mingw64-i686-gcc-4.5.1-2/src/gcc-4.5.1
> --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin
> --libexecdir=/usr/lib --datadir=/usr/share --localstatedir=/var
> --sysconfdir=/etc --datarootdir=/usr/share
> --docdir=/usr/share/doc/mingw64-i686-gcc -C --build=i686-pc-cygwin
> --host=i686-pc-cygwin --target=i686-w64-mingw32
> --with-sysroot=/usr/i686-w64-mingw32/sys-root
> --with-build-sysroot=/usr/i686-w64-mingw32/sys-root --disable-multilib
> --disable-win32-registry
> --enable-languages=c,ada,c++,fortran,objc,obj-c++
> --enable-fully-dynamic-strings --enable-libgomp --enable-sjlj-exceptions
> --enable-version-specific-runtime-libs --with-dwarf2
> --enable-decimal-float=bid --enable-lto
> Thread model: win32
> gcc version 4.5.1 (GCC)
> COMPILER_PATH=/usr/lib/gcc/i686-w64-mingw32/4.5.1/:/usr/lib/gcc/i686-w64-mingw32/4.5.1/:/usr/lib/gcc/i686-w64-mingw32/:/usr/lib/gcc/i686-w64-mingw32/4.5.1/:/usr/lib/gcc/i686-w64-mingw32/:/usr/lib/gcc/i686-w64-mingw32/4.5.1/../../../../i686-w64-mingw32/bin/
> LIBRARY_PATH=/usr/lib/gcc/i686-w64-mingw32/4.5.1/:/usr/lib/gcc/i686-w64-mingw32/4.5.1/../../../../i686-w64-mingw32/lib/../lib32/:/usr/lib/gcc/i686-w64-mingw32/4.5.1/../../../../i686-w64-mingw32/lib/:/usr/i686-w64-mingw32/sys-root/mingw/lib/
> COLLECT_GCC_OPTIONS='-s' '-o' 'stunnel.exe' '-L/cygdrive/c/openssl/lib'
> '-L/cygdrive/c/dl/stunnel/zlib-1.2.5' '-mwindows' '-v' '-mtune=generic'
> '-march=pentiumpro'
>  /usr/lib/gcc/i686-w64-mingw32/4.5.1/collect2.exe
> --sysroot=/usr/i686-w64-mingw32/sys-root -m i386pe --subsystem windows
> -Bdynamic -o stunnel.exe -s
> /usr/i686-w64-mingw32/sys-root/mingw/lib/crt2.o
> /usr/lib/gcc/i686-w64-mingw32/4.5.1/crtbegin.o -L/cygdrive/c/openssl/lib
> -L/cygdrive/c/dl/stunnel/zlib-1.2.5 -L/usr/lib/gcc/i686-w64-mingw32/4.5.1
> -L/usr/lib/gcc/i686-w64-mingw32/4.5.1/../../../../i686-w64-mingw32/lib/../lib32
> -L/usr/lib/gcc/i686-w64-mingw32/4.5.1/../../../../i686-w64-mingw32/lib
> -L/usr/i686-w64-mingw32/sys-root/mingw/lib file.obj client.obj log.obj
> options.obj protocol.obj network.obj resolver.obj ssl.obj ctx.obj
> verify.obj sthreads.obj stunnel.obj gui.obj resources.obj -lcrypto.dll
> -lssl.dll -lz -lws2_32 -lgdi32 -lmingw32 -lgcc_eh -lgcc -lmoldname
> -lmingwex -lmsvcrt -lgdi32 -lcomdlg32 -luser32 -lkernel32 -ladvapi32
> -lshell32 -lmingw32 -lgcc_eh -lgcc -lmoldname -lmingwex -lmsvcrt
> /usr/lib/gcc/i686-w64-mingw32/4.5.1/crtend.o
>
> Administrator at MSDN-2005-DEV /cygdrive/c/dl/stunnel/stunnel-4.35/src
> $
>
> *4 Link attempt under windows:
>
> C:\dl\stunnel\stunnel-4.35\src>link /libpath:"C:\openssl\lib"
> /libpath:"c:\dl\stunnel\zlib-1.2.5" /machine:I386 /nologo
> /out:"stunnel.exe" /incremental:no /release /mapinfo:exports
> /subsystem:windows /opt:ref /opt:icf wsock32.lib kernel32.lib user32.lib
> gdi32.lib comdlg32.lib advapi32.lib shell32.lib msvcrt.lib libcmt.lib
> libcrypto.a libssl.a libz.a file.obj client.obj log.obj options.obj
> protocol.obj network.obj resolver.obj ssl.obj ctx.obj verify.obj
> sthreads.obj stunnel.obj gui.obj resources.obj
> msvcrt.lib(_stat.obj) : warning LNK4078: multiple '.drectve' sections
> found with different attributes (00000A00)
> options.obj : error LNK2019: unresolved external symbol ___chkstk
> referenced in function _parse_conf
> gui.obj : error LNK2019: unresolved external symbol _strdup referenced in
> function _WinMain at 16
> libcrypto.a(asn_mime.o) : error LNK2001: unresolved external symbol
> __alloca
> libcrypto.a(bss_file.o) : error LNK2019: unresolved external symbol
> __alloca referenced in function _BIO_new_file
> libcrypto.a(cryptlib.o) : error LNK2001: unresolved external symbol
> __alloca
> libcrypto.a(err_prn.o) : error LNK2001: unresolved external symbol
> __alloca
> libcrypto.a(bn_prime.o) : error LNK2001: unresolved external symbol
> __alloca
> libcrypto.a(b_print.o) : error LNK2019: unresolved external symbol
> ___umoddi3 referenced in function _fmtint
> libcrypto.a(bn_word.o) : error LNK2001: unresolved external symbol
> ___umoddi3
> libcrypto.a(b_print.o) : error LNK2019: unresolved external symbol
> ___udivdi3 referenced in function _fmtint
> stunnel.exe : fatal error LNK1120: 5 unresolved externals
>
> C:\dl\stunnel\stunnel-4.35\src>
>
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