#!/bin/bash # called by dracut check() { return 255 } # called by dracut depends() { return 0 } # called by dracut installkernel() { local _fipsmodules _mod _bootfstype if [[ -f "${srcmods}/modules.fips" ]]; then read -d '' -r _fipsmodules < "${srcmods}/modules.fips" else _fipsmodules="" # Hashes: _fipsmodules+="sha1 sha224 sha256 sha384 sha512 " _fipsmodules+="sha3-224 sha3-256 sha3-384 sha3-512 " _fipsmodules+="crc32c crct10dif ghash " # Ciphers: _fipsmodules+="cipher_null des3_ede aes cfb dh ecdh " # Modes/templates: _fipsmodules+="ecb cbc ctr xts gcm ccm authenc hmac cmac ofb cts " # Compression algs: _fipsmodules+="deflate lzo zlib " # PRNG algs: _fipsmodules+="ansi_cprng " # Misc: _fipsmodules+="aead cryptomgr tcrypt crypto_user " fi # shellcheck disable=SC2174 mkdir -m 0755 -p "${initdir}/etc/modprobe.d" for _mod in $_fipsmodules; do if hostonly='' instmods -c -s "$_mod"; then echo "$_mod" >> "${initdir}/etc/fipsmodules" echo "blacklist $_mod" >> "${initdir}/etc/modprobe.d/fips.conf" fi done # with hostonly_default_device fs module for /boot is not installed by default if [[ $hostonly ]] && [[ $hostonly_default_device == "no" ]]; then _bootfstype=$(find_mp_fstype /boot) if [[ -n $_bootfstype ]]; then hostonly='' instmods "$_bootfstype" else dwarning "Can't determine fs type for /boot, FIPS check may fail." fi fi } # called by dracut install() { inst_hook pre-pivot 00 "$moddir/fips-boot.sh" inst_hook pre-pivot 01 "$moddir/fips-noboot.sh" inst_hook pre-udev 01 "$moddir/fips-load-crypto.sh" inst_script "$moddir/fips.sh" /sbin/fips.sh inst_multiple sha512hmac rmmod insmod mount uname umount grep sed cut find sort inst_simple /etc/system-fips [ -c "${initdir}"/dev/random ] || mknod "${initdir}"/dev/random c 1 8 \ || { dfatal "Cannot create /dev/random" dfatal "To create an initramfs with fips support, dracut has to run as root" return 1 } [ -c "${initdir}"/dev/urandom ] || mknod "${initdir}"/dev/urandom c 1 9 \ || { dfatal "Cannot create /dev/urandom" dfatal "To create an initramfs with fips support, dracut has to run as root" return 1 } }