[rsbac] Problem with compiling rsbac-admin-v1.21

[Patrique Wolfrum]

Hello,

Thank you very much for your answer.

> > (Here a little side-question: Has someone tried successfully to patch a
> Suse-kernel ?)
>
> People have tried, but it was some time ago. I cannot recall whether it
was
> successful - for security reasons I recommend not to use such a heavily
> patched kernel.

So I'll stick with the vanilla/prepatched kernels.

> > As we tried to compile the admin-tools for rsbac (according the
> install-documentation on the website), we got the following error-message
> during 'make':
> >
> > acl_grant.o(.text+0x45c): In function 'process'.
> > /inst/rsbac-admin-v1.2.1/src/acl_grant.c:183 undefined reference to
'errno'
> > librsbac.a(syscall_wrapper.o)(.text+0x23): In function 'rsbac':
> > undefined reference to 'errno'
> > collect2: ld returned 1 exit status
> > make[2] *** [acl_grant] Error 1
> >
> > We then tried this on a second computer with Redhat 9.0 installed. Again
> the same result.
> > But with a system with Redhat 8.0 installed (my home-server), the
compile
> went without any problems.
> >
> > After this, we thought of the problem is probably related to the version
of
> the GCC used (Suse 8.2 uses GCC 3.33 and Redhat 9 GCC 3.22, while Redhat
8.0
> uses 3.2). So perhaps there is a problem with RSBAC and newer
GCC-versions.
>
> Please add the line
>        #include <errno.h>
> to <kerneldir>/include/rsbac/syscalls.h and retry.

I tried this (modified the line to #include <asm-i386/errno.h> since he
couldn't find errno.h otherwise) and recompiled the kernel, which went
flawlessly. But the compile of the admin-tools breaks as before with a
slightly modified error-message:

/bin/sh ../libtool --mode=link gcc  -g -O2  -o acl_grant  acl_grant.o
getname.o helpers.o acl_getname.o librsbac.a
gcc -g -O2 -o acl_grant acl_grant.o getname.o helpers.o acl_getname.o
librsbac.a
acl_grant.o(.text+0x19d): In function `process':
/installing/rsbac-admin-v1.2.1/src/acl_grant.c:183: undefined reference to
`errno'
librsbac.a(syscall_wrapper.o)(.text+0x23): In function `rsbac':
: undefined reference to `errno'
collect2: ld returned 1 exit status

With best regards,
    Patrique Wolfrum (Chair of Information Management)