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