On 27.6.2016 08:38, Florence Blanc-Renaud wrote:
> Hi,
>
> this fix is a port of Bug 1131570 - Do not allow IdM server/replica/client
> installation in a FIPS-140 mode
> It prevents installation of FreeIPA if the host is fips-enabled.
>
> https://fedorahosted.org/freeipa/ticket/5761
>
> freeipa-frenaud-0008-Do-not-allow-installation-in-FIPS-mode.patch
>
>
>>From afecbb3d228cf1d6cee59da53bf7a803f030d0b1 Mon Sep 17 00:00:00 2001
> From: Florence Blanc-Renaud <fren...@redhat.com>
> Date: Fri, 24 Jun 2016 16:16:22 +0200
> Subject: [PATCH] Do not allow installation in FIPS mode
>
> https://fedorahosted.org/freeipa/ticket/5761
> ---
> client/ipa-client-install | 4 ++++
> install/tools/ipactl | 6 ++++++
> ipaserver/install/server/install.py | 5 +++++
> ipaserver/install/server/replicainstall.py | 5 +++++
> 4 files changed, 20 insertions(+)
>
> diff --git a/client/ipa-client-install b/client/ipa-client-install
> index
> 0a601b63118b0a3568066495837121c65e5df04f..f80ff9c469709ea3b63902610b3b8b5c35448904
> 100755
> --- a/client/ipa-client-install
> +++ b/client/ipa-client-install
> @@ -3064,6 +3064,10 @@ def main():
>
> if not os.getegid() == 0:
> sys.exit("\nYou must be root to run ipa-client-install.\n")
> + if os.path.exists('/proc/sys/crypto/fips_enabled'):
> + with open('/proc/sys/crypto/fips_enabled', 'r') as f:
Usually it is safer to call open() and catch exception if the file does not
exist. The code above has inherent problem with race-conditions between time
of check (path.exists) and time of use (open).
Of course it is not a problem here because this file is part of kernel's
interface but in general please use the try: open() except: form.
> + if f.read().strip() != '0':
> + sys.exit("Cannot install IPA client in FIPS mode")
Personally I would like to see more informative messages.
I would recommend something like "<something> is not supported in FIPS mode".
In my eyes it is difference between "How do I ...? You dont!" vs "How do I
...? Sorry, we do not support that right now."
Sorry for nitpicking! :-)
Petr^2 Spacek
> tasks.check_selinux_status()
> logging_setup(options)
> root_logger.debug(
> diff --git a/install/tools/ipactl b/install/tools/ipactl
> index
> 547b21d875dff7231fae8dfc10faf995b0ca230b..9c68fffe73bfdd97789907226f8765c09707d552
> 100755
> --- a/install/tools/ipactl
> +++ b/install/tools/ipactl
> @@ -545,6 +545,12 @@ def main():
> elif args[0] != "start" and args[0] != "stop" and args[0] != "restart"
> and args[0] != "status":
> raise IpactlError("Unrecognized action [" + args[0] + "]", 2)
>
> + if (args[0] in ('start', 'restart') and
> + os.path.exists('/proc/sys/crypto/fips_enabled')):
> + with open('/proc/sys/crypto/fips_enabled', 'r') as f:
> + if f.read().strip() != '0':
> + raise IpactlError("Cannot start IPA server in FIPS mode")
> +
> # check if IPA is configured at all
> try:
> check_IPA_configuration()
> diff --git a/ipaserver/install/server/install.py
> b/ipaserver/install/server/install.py
> index
> 930cca7b31ca06c04ab92deff49b6a4f198c2b6e..0c0683733ef38444a82d085f771596a9b066ef1d
> 100644
> --- a/ipaserver/install/server/install.py
> +++ b/ipaserver/install/server/install.py
> @@ -319,6 +319,11 @@ def install_check(installer):
> external_ca_file = installer._external_ca_file
> http_ca_cert = installer._ca_cert
>
> + if os.path.exists('/proc/sys/crypto/fips_enabled'):
> + with open('/proc/sys/crypto/fips_enabled', 'r') as f:
> + if f.read().strip() != '0':
> + sys.exit("Cannot install IPA server in FIPS mode")
> +
> tasks.check_selinux_status()
>
> if options.master_password:
> diff --git a/ipaserver/install/server/replicainstall.py
> b/ipaserver/install/server/replicainstall.py
> index
> 52b2ea5b0691cd99c6cb566af5a15af3b2dffb14..a2946339c7aeee8529f6ecf8ec4d85c9291fd291
> 100644
> --- a/ipaserver/install/server/replicainstall.py
> +++ b/ipaserver/install/server/replicainstall.py
> @@ -485,6 +485,11 @@ def install_check(installer):
> options = installer
> filename = installer.replica_file
>
> + if os.path.exists('/proc/sys/crypto/fips_enabled'):
> + with open('/proc/sys/crypto/fips_enabled', 'r') as f:
> + if f.read().strip() != '0':
> + sys.exit("Cannot install IPA server in FIPS mode")
> +
> tasks.check_selinux_status()
>
> if is_ipa_configured():
> -- 2.7.4
--
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