Problem building Linux shared library with static FIPS capable OpenSSL
Pankaj Sarode
pankajnsarode at gmail.com
Tue Nov 19 06:39:40 UTC 2019
Hi,
I am using following openssl versions
openssl-1.0.2r.tar.gz
openssl-fips-2.0.5.tar.gz
Following are my files,
*foo.c* :
[root at data-domain-dev-vm poc]# cat foo.c
#include <stdio.h>
#include <openssl/evp.h>
#include <openssl/err.h>
int foo_func()
{
int rc, mode;
mode = FIPS_mode();
if(mode == 0)
{
rc = FIPS_mode_set(1);
if(rc == 0) {
printf("Failed to enable FIPS mode, ");
printf("%s\n",ERR_error_string(ERR_get_error(),NULL));
} else {
printf("Enabled FIPS mode");
}
}
else
{
printf("Already in FIPS mode");
}
return 0;
}
*poc.c* :
[root at data-domain-dev-vm poc]# cat poc.c
#include <stdio.h>
#include "foo.h"
int main(int argc, char* argv[])
{
foo_func();
return 0;
}
*Makefile* :
[root at data-domain-dev-vm poc]# cat Makefile
OPENSSLDIR = /usr/local/ssl/fips2.0
OPENSSL_INCLUDEDIR = /root/poc/openssl-1.0.2r/include/
FIPSMODULE = $(OPENSSLDIR)/lib/fipscanister.o
CC = /usr/bin/gcc
FIPSLD = /usr/local/ssl/fips-2.0/bin/fipsld
OBJS = poc.o
LIBCRYPTO = /root/poc/openssl-1.0.2r/libcrypto.a
LIBSSL = /root/poc/openssl-1.0.2r/libssl.a
libfoo.so:
env FIPSLD_CC=/usr/bin/gcc $(FIPSLD) -fPIC -shared -o libfoo.so
foo.c $(LIBCRYPTO) $(LIBSSL) # Working
poc.o:
/usr/bin/gcc -I$(OPENSSL_INCLUDEDIR) -Wall -c poc.c
POC: libfoo.so $(OBJS)
env FIPSLD_CC=/usr/bin/gcc $(FIPSLD) $(OBJS) $(LIBCRYPTO) $(LIBSSL)
-L/root/poc -lfoo -ldl -o POC #working
#/usr/bin/gcc $(OBJS) -L/root/poc -lfoo -ldl -o POC #notworking
#env FIPSLD_CC=/usr/bin/gcc $(FIPSLD) $(OBJS) -L/root/poc -lfoo
-ldl -o POC #notworking
What I am not able to understand is why any of the red colored lines are
not working. when I try to do the FIPS_mode_set() when compiled using red
highlighted tex, I get an error
Failed to enable FIPS mode, error:2D06B06F:lib(45):func(107):reason(111)
I actually want to compile the POC application without $(LIBCRYPTO) and
$(LIBSSL) what can be the done to have $(LIBCRYPTO) and $(LIBSSL) linked to
only foo.so and POC application can only use foo.so for successful
operation.
Some more details:
[root at data-domain-dev-vm poc]# OPENSSL_FIPS=1 openssl md5 /dev/null
Error setting digest md5
140539482445728:error:060800A3:digital envelope
routines:EVP_DigestInit_ex:disabled for fips:digest.c:256:
[root at data-domain-dev-vm poc]# OPENSSL_FIPS=1 openssl sha1 /dev/null
SHA1(/dev/null)= da39a3ee5e6b4b0d3255bfef95601890afd80709
Any help is appreciated, Please let me know where in code i am going wrong.
Thanks a lot,
Pankaj
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