Andy Polyakov <appro <at> openssl.org> writes:
>
> > I tested this on the x86 version of the DLL and I imagine it will fix
> > the x64 DLL as well (they both reported the same error). It looks
> > like this setting will need to be added for VS2010.
>
> As mentioned [in another reply], I was under impression that x64 code is
> always position-independent, i.e. I'd expect x64 to work even if
> relocated. Oh well... Closer look revealed that .text segment, code
> itself, *is* indeed position-independent, but not .rdata, which is also
> fingerprinted. In order for this to work it is implied that compiler
> moves relocatable data from .rdata segment. Unix compiler actually do
> that, but apparently not Windows A.
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>
>
I am facing same issue when I built x64 version of FIPS object module (1.2.3)and
openSSL 0.9.8.u on Windows 7 with Visual Studio 2010.
As suggested in this thread, I have edited the openssl-0.9.8u\ms\ntdll.mak and
added /FIXED flag in LFLAGS as below.
LFLAGS=/FIXED /nologo /subsystem:console /opt:ref
Now, out32dll/fips_test_suite.exe running successfully after compiling with
/FIXED linker option.
However, my sample application which is linking dynamically with libeay32.dll is
returning same finger print mismatch error.Sample application also links with
/FIXED linker option.
dumpbin shows no randomization code in "DLL characteristics" for both
libeay32.dll and sample application.
Here is the link lines for libeay32.dll:
----------------------------------------------------
perl util\fipslink.pl /FIXED /nologo /subsystem:console /opt:ref /dll /map
/base:0xFB00000 /out:out32dll\libeay32.dll /def:ms/LIBEAY32.def
@C:\Users\VIMOL_~1\AppData\Local\Temp\nm9209.tmp
----------------------------------------------------
Value of DLL characteristics from dumpbin:
----------------------------------------------------
100 DLL characteristics
NX compatible
----------------------------------------------------
Is the above value of link line and DLL characteristics correct? Or did I miss
anything? Or is OS forcefully loading the libeay32.DLL at randomized address?
Thanks,
-Vimol
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