mirror of
https://github.com/moparisthebest/socat
synced 2024-11-13 20:45:02 -05:00
68 lines
2.6 KiB
Plaintext
68 lines
2.6 KiB
Plaintext
|
|
||
|
|
David Acker has patched socat to add OpenSSL FIPS.
|
||
|
|
See http://oss-institute.org/fips-faq.html and
|
||
|
|
http://linuxdevices.com/news/NS4742716157.html for more information.
|
||
|
|
|
||
|
|
The patch that is integrated into socat 1.5 does the following:
|
||
|
|
|
||
|
|
Add support for LDFLAGS in Makefile. LDFLAGS can be specified on the
|
||
|
|
configure command line and then will be carried over into the make.
|
||
|
|
|
||
|
|
Add fips support. Requires OpenSSL 0.9.7j-fips-dev from
|
||
|
|
http://www.openssl.org/source/OpenSSL-fips-1.0.tar.gz built with fips
|
||
|
|
support turned on. use ./Configure fips [os-arc], for example
|
||
|
|
./Configure fips linux-pentium
|
||
|
|
|
||
|
|
The LDFLAGS is needed to point a build against a library
|
||
|
|
located in a non-standard location. For example, if you download and
|
||
|
|
build openssl manually, it gets installed in /usr/local/ssl by default.
|
||
|
|
|
||
|
|
The FIPS support patches involve adding an option to enable/disable fips
|
||
|
|
in configure (enabled by default), checking the system for FIPS support
|
||
|
|
during configure, and then adding a fips option to socats openssl address
|
||
|
|
to turn on fips mode. The openssl binary uses an environment variable
|
||
|
|
instead of a command line flag.
|
||
|
|
FIPS mode requires both a compile time flag of OPENSSL_FIPS and a
|
||
|
|
runtime call of FIPS_mode_set(1). Fips mode requires building with the
|
||
|
|
fipsld script provided by OpenSSL. FIPS tracks the pid of the process that
|
||
|
|
initializes things so after a fork, the child must reinitialize. When the
|
||
|
|
ssl code detects a forks occur and if FIPS mode was enabled, it reinitializes
|
||
|
|
FIPS by disabling and then enabling it again.
|
||
|
|
|
||
|
|
To produce Davids enviroment, do the following:
|
||
|
|
To build openssl
|
||
|
|
download OpenSSL 0.9.7j-fips-dev from
|
||
|
|
http://www.openssl.org/source/OpenSSL-fips-1.0.tar.gz
|
||
|
|
tar xzf OpenSSL-fips-1.0.tar.gz
|
||
|
|
cd openssl
|
||
|
|
./Configure fips linux-pentium
|
||
|
|
make
|
||
|
|
make test
|
||
|
|
(become root)
|
||
|
|
make install
|
||
|
|
This leaves an install in /usr/local/ssl
|
||
|
|
|
||
|
|
To build socat:
|
||
|
|
setup directory with socat 1.5 or higher.
|
||
|
|
cd socat-1.5.0.0
|
||
|
|
./configure CPPFLAGS=-I/usr/local/ssl/include/ LDFLAGS=-L/usr/local/ssl/lib/ FIPSLD=/usr/local/ssl/bin/fipsld
|
||
|
|
make
|
||
|
|
(become root)
|
||
|
|
make install
|
||
|
|
|
||
|
|
To run tests we make sure the new openssl is used:
|
||
|
|
|
||
|
|
export PATH=/usr/local/ssl/bin:$PATH
|
||
|
|
./test.sh fips
|
||
|
|
|
||
|
|
There are two tests in test.sh that depend on fips:
|
||
|
|
|
||
|
|
OPENSSL_FIPS_BOTHAUTH performs a SSL client to server connection with
|
||
|
|
certificate based authentication in both directions. If it works FIPS mode
|
||
|
|
seems to be ok.
|
||
|
|
|
||
|
|
OPENSSL_FIPS_SECURITY generates a certificaet/key pair without fips support. It
|
||
|
|
then tries a SSL connection in "normal" mode which is expected to work. In the
|
||
|
|
second phase it uses fips mode with these credentials which is expected to
|
||
|
|
fail. If so, the test succeeded.
|