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From 9c54932f590fd7accadc780c6ee946a94286b7e6 Mon Sep 17 00:00:00 2001
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From: Lukas Nykryn <lnykryn@redhat.com>
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Date: Tue, 14 May 2019 09:23:55 +0200
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Subject: [PATCH] fips: split loading the crypto modules and checking the
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kernel
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In e54ab383 we moved the fips script to a later pahse of boot, since
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the /boot might not be available early on.
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The problem is that systemd-cryptsetup* services could be run now
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started before the do_fips is executed and need the crypto modules
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to decrypted the devices.
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So let's split the do_fips and load the module before udev does the
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trigger.
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---
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modules.d/01fips/fips-load-crypto.sh | 8 ++++++++
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modules.d/01fips/fips.sh | 19 +++++++++++--------
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modules.d/01fips/module-setup.sh | 1 +
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3 files changed, 20 insertions(+), 8 deletions(-)
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diff --git a/modules.d/01fips/fips-load-crypto.sh b/modules.d/01fips/fips-load-crypto.sh
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new file mode 100644
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index 00000000..82cbeee4
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--- /dev/null
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+++ b/modules.d/01fips/fips-load-crypto.sh
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@@ -0,0 +1,8 @@
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+#!/bin/sh
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+
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+if ! fipsmode=$(getarg fips) || [ $fipsmode = "0" ]; then
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+ rm -f -- /etc/modprobe.d/fips.conf >/dev/null 2>&1
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+else
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+ . /sbin/fips.sh
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+ fips_load_crypto || die "FIPS integrity test failed"
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+fi
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diff --git a/modules.d/01fips/fips.sh b/modules.d/01fips/fips.sh
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index 9bc089f2..beaa692b 100755
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--- a/modules.d/01fips/fips.sh
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+++ b/modules.d/01fips/fips.sh
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@@ -69,15 +69,8 @@ do_rhevh_check()
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return 0
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}
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-do_fips()
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+fips_load_crypto()
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{
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- local _v
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- local _s
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- local _v
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- local _module
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-
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- KERNEL=$(uname -r)
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-
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FIPSMODULES=$(cat /etc/fipsmodules)
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info "Loading and integrity checking all crypto modules"
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@@ -102,6 +95,16 @@ do_fips()
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info "Self testing crypto algorithms"
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modprobe tcrypt || return 1
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rmmod tcrypt
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+}
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+
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+do_fips()
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+{
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+ local _v
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+ local _s
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+ local _v
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+ local _module
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+
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+ KERNEL=$(uname -r)
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info "Checking integrity of kernel"
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if [ -e "/run/initramfs/live/vmlinuz0" ]; then
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diff --git a/modules.d/01fips/module-setup.sh b/modules.d/01fips/module-setup.sh
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index f3af4d90..18186d62 100755
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--- a/modules.d/01fips/module-setup.sh
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+++ b/modules.d/01fips/module-setup.sh
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@@ -54,6 +54,7 @@ install() {
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local _dir
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inst_hook pre-trigger 01 "$moddir/fips-boot.sh"
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inst_hook pre-pivot 01 "$moddir/fips-noboot.sh"
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+ inst_hook pre-udev 01 "$moddir/fips-load-crypto.sh"
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inst_script "$moddir/fips.sh" /sbin/fips.sh
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inst_multiple sha512hmac rmmod insmod mount uname umount
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