diff options
author | jc_gargma <jc_gargma@iserlohn-fortress.net> | 2020-08-02 19:36:17 -0700 |
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committer | jc_gargma <jc_gargma@iserlohn-fortress.net> | 2020-08-02 19:36:17 -0700 |
commit | 792aed4512d5a3630de3ceb16ac489a197f2c7bc (patch) | |
tree | 1f6784322037948c8064588ffddccb83158fa186 | |
download | cryptsetup-raid-792aed4512d5a3630de3ceb16ac489a197f2c7bc.tar.xz |
Initial commit
-rw-r--r-- | PKGBUILD | 33 | ||||
-rw-r--r-- | encrypt.install | 48 | ||||
-rw-r--r-- | encrypt2.hook | 143 | ||||
-rw-r--r-- | encrypt3.hook | 143 | ||||
-rw-r--r-- | encrypt4.hook | 143 |
5 files changed, 510 insertions, 0 deletions
diff --git a/PKGBUILD b/PKGBUILD new file mode 100644 index 0000000..d06875a --- /dev/null +++ b/PKGBUILD @@ -0,0 +1,33 @@ +# Maintainer: jc_gargma <jc_gargma@iserlohn-fortress.net> + +# # I maintain this because: +# Artix lacks this init script entirely + +pkgname=cryptsetup-raid +pkgver=202008802 +pkgrel=1 +pkgdesc="Extra encrypt hooks for raids" +arch=('any') +url="https://library.iserlohn-fortress.net/arc4/cryptsetup-raid" +license=('GPL') +depends=('cryptsetup') +source=( + "encrypt2.hook" + "encrypt3.hook" + "encrypt4.hook" + "encrypt.install" + ) +b2sums=('e5a14b05aea56629c04cbe2795917f4d4e6fefb8bfec3076caff322f86e993fb286020d4b611960a1c0c1c3787f09942cd7127b1565c2a59b7923c6423d922a1' + 'b2bd6cd6f4514293fe35ec2142ebe3e705b3defd6955508d9526cabd515c0d3306ef33be0a389214398a9586f3c31786e46c1165675a9e4f483b4cfe5fd84a12' + 'd1f918fc7ca54afdd2306fc7f75b7affbb5396df621b72986f118902d90b05c61fd5b37393ab5a2abfc155ee937ffc37325827c29ba908b3c3490523e149e9a4' + '6b0a9368e491757ef6e4f67a44b518741253e702d16e3502f51634333069ff676032f4afc61151bdf29f3c2a8d4afd4f4c1b804ececb353bce8707bf8008519b') + +package() { + install -Dm644 ${srcdir}/encrypt2.hook ${pkgdir}/usr/lib/initcpio/hooks/encrypt2 + install -Dm644 ${srcdir}/encrypt3.hook ${pkgdir}/usr/lib/initcpio/hooks/encrypt3 + install -Dm644 ${srcdir}/encrypt3.hook ${pkgdir}/usr/lib/initcpio/hooks/encrypt4 + + install -Dm644 ${srcdir}/encrypt.install ${pkgdir}/usr/lib/initcpio/install/encrypt2 + install -Dm644 ${srcdir}/encrypt.install ${pkgdir}/usr/lib/initcpio/install/encrypt3 + install -Dm644 ${srcdir}/encrypt.install ${pkgdir}/usr/lib/initcpio/install/encrypt4 +} diff --git a/encrypt.install b/encrypt.install new file mode 100644 index 0000000..4cffb4f --- /dev/null +++ b/encrypt.install @@ -0,0 +1,48 @@ +#!/bin/bash + +build() { + local mod + + add_module "dm-crypt" + add_module "dm-integrity" + if [[ $CRYPTO_MODULES ]]; then + for mod in $CRYPTO_MODULES; do + add_module "$mod" + done + else + add_all_modules "/crypto/" + fi + + add_binary "cryptsetup" + add_binary "dmsetup" + add_file "/usr/lib/udev/rules.d/10-dm.rules" + add_file "/usr/lib/udev/rules.d/13-dm-disk.rules" + add_file "/usr/lib/udev/rules.d/95-dm-notify.rules" + add_file "/usr/lib/initcpio/udev/11-dm-initramfs.rules" "/usr/lib/udev/rules.d/11-dm-initramfs.rules" + + # cryptsetup calls pthread_create(), which dlopen()s libgcc_s.so.1 + add_binary "/usr/lib/libgcc_s.so.1" + + add_runscript +} + +help() { + cat <<HELPEOF +This hook allows for an encrypted root device. Users should specify the device +to be unlocked using 'cryptdevice=device:dmname' on the kernel command line, +where 'device' is the path to the raw device, and 'dmname' is the name given to +the device after unlocking, and will be available as /dev/mapper/dmname. + +For unlocking via keyfile, 'cryptkey=device:fstype:path' should be specified on +the kernel cmdline, where 'device' represents the raw block device where the key +exists, 'fstype' is the filesystem type of 'device' (or auto), and 'path' is +the absolute path of the keyfile within the device. + +Without specifying a keyfile, you will be prompted for the password at runtime. +This means you must have a keyboard available to input it, and you may need +the keymap hook as well to ensure that the keyboard is using the layout you +expect. +HELPEOF +} + +# vim: set ft=sh ts=4 sw=4 et: diff --git a/encrypt2.hook b/encrypt2.hook new file mode 100644 index 0000000..22f7fef --- /dev/null +++ b/encrypt2.hook @@ -0,0 +1,143 @@ +#!/usr/bin/ash + +run_hook() { + modprobe -a -q dm-crypt >/dev/null 2>&1 + [ "${quiet}" = "y" ] && CSQUIET=">/dev/null" + + # Get keyfile if specified + ckeyfile="/crypto_keyfile.bin" + if [ -n "$cryptkey2" ]; then + IFS=: read ckdev ckarg1 ckarg2 <<EOF +$cryptkey2 +EOF + + if [ "$ckdev" = "rootfs" ]; then + ckeyfile=$ckarg1 + elif resolved=$(resolve_device "${ckdev}" ${rootdelay}); then + case ${ckarg1} in + *[!0-9]*) + # Use a file on the device + # ckarg1 is not numeric: ckarg1=filesystem, ckarg2=path + mount -r -t "$ckarg1" "$resolved" /ckey + dd if="/ckey/$ckarg2" of="$ckeyfile" >/dev/null 2>&1 + umount /ckey + ;; + *) + # Read raw data from the block device + # ckarg1 is numeric: ckarg1=offset, ckarg2=length + dd if="$resolved" of="$ckeyfile" bs=1 skip="$ckarg1" count="$ckarg2" >/dev/null 2>&1 + ;; + esac + fi + [ ! -f ${ckeyfile} ] && echo "Keyfile could not be opened. Reverting to passphrase." + fi + + if [ -n "${cryptdevice}" ]; then + DEPRECATED_CRYPT=0 + IFS=: read cryptdev cryptname cryptoptions <<EOF +$cryptdevice2 +EOF + else + DEPRECATED_CRYPT=1 + cryptdev="${root}" + cryptname="root" + fi + + # This may happen if third party hooks do the crypt setup + if [ -b "/dev/mapper/${cryptname}" ]; then + echo "Device ${cryptname} already exists, not doing any crypt setup." + return 0 + fi + + warn_deprecated() { + echo "The syntax 'root=${root}' where '${root}' is an encrypted volume is deprecated" + echo "Use 'cryptdevice=${root}:root root=/dev/mapper/root' instead." + } + + for cryptopt in ${cryptoptions//,/ }; do + case ${cryptopt} in + allow-discards) + cryptargs="${cryptargs} --allow-discards" + ;; + *) + echo "Encryption option '${cryptopt}' not known, ignoring." >&2 + ;; + esac + done + + if resolved=$(resolve_device "${cryptdev}" ${rootdelay}); then + if cryptsetup isLuks ${resolved} >/dev/null 2>&1; then + [ ${DEPRECATED_CRYPT} -eq 1 ] && warn_deprecated + dopassphrase=1 + # If keyfile exists, try to use that + if [ -f ${ckeyfile} ]; then + if eval cryptsetup --key-file ${ckeyfile} open --type luks ${resolved} ${cryptname} ${cryptargs} ${CSQUIET}; then + dopassphrase=0 + else + echo "Invalid keyfile. Reverting to passphrase." + fi + fi + # Ask for a passphrase + if [ ${dopassphrase} -gt 0 ]; then + echo "" + echo "A password is required to access the ${cryptname} volume:" + + #loop until we get a real password + while ! eval cryptsetup open --type luks ${resolved} ${cryptname} ${cryptargs} ${CSQUIET}; do + sleep 2; + done + fi + if [ -e "/dev/mapper/${cryptname}" ]; then + if [ ${DEPRECATED_CRYPT} -eq 1 ]; then + export root="/dev/mapper/root" + fi + else + err "Password succeeded, but ${cryptname} creation failed, aborting..." + return 1 + fi + elif [ -n "${crypto}" ]; then + [ ${DEPRECATED_CRYPT} -eq 1 ] && warn_deprecated + msg "Non-LUKS encrypted device found..." + if echo "$crypto" | awk -F: '{ exit(NF == 5) }'; then + err "Verify parameter format: crypto=hash:cipher:keysize:offset:skip" + err "Non-LUKS decryption not attempted..." + return 1 + fi + exe="cryptsetup open --type plain $resolved $cryptname $cryptargs" + IFS=: read c_hash c_cipher c_keysize c_offset c_skip <<EOF +$crypto +EOF + [ -n "$c_hash" ] && exe="$exe --hash '$c_hash'" + [ -n "$c_cipher" ] && exe="$exe --cipher '$c_cipher'" + [ -n "$c_keysize" ] && exe="$exe --key-size '$c_keysize'" + [ -n "$c_offset" ] && exe="$exe --offset '$c_offset'" + [ -n "$c_skip" ] && exe="$exe --skip '$c_skip'" + if [ -f "$ckeyfile" ]; then + exe="$exe --key-file $ckeyfile" + else + echo "" + echo "A password is required to access the ${cryptname} volume:" + fi + eval "$exe $CSQUIET" + + if [ $? -ne 0 ]; then + err "Non-LUKS device decryption failed. verify format: " + err " crypto=hash:cipher:keysize:offset:skip" + return 1 + fi + if [ -e "/dev/mapper/${cryptname}" ]; then + if [ ${DEPRECATED_CRYPT} -eq 1 ]; then + export root="/dev/mapper/root" + fi + else + err "Password succeeded, but ${cryptname} creation failed, aborting..." + return 1 + fi + else + err "Failed to open encryption mapping: The device ${cryptdev} is not a LUKS volume and the crypto= paramater was not specified." + fi + fi + rm -f ${ckeyfile} +} + +# vim: set ft=sh ts=4 sw=4 et: diff --git a/encrypt3.hook b/encrypt3.hook new file mode 100644 index 0000000..ba86efc --- /dev/null +++ b/encrypt3.hook @@ -0,0 +1,143 @@ +#!/usr/bin/ash + +run_hook() { + modprobe -a -q dm-crypt >/dev/null 2>&1 + [ "${quiet}" = "y" ] && CSQUIET=">/dev/null" + + # Get keyfile if specified + ckeyfile="/crypto_keyfile.bin" + if [ -n "$cryptkey3" ]; then + IFS=: read ckdev ckarg1 ckarg2 <<EOF +$cryptkey3 +EOF + + if [ "$ckdev" = "rootfs" ]; then + ckeyfile=$ckarg1 + elif resolved=$(resolve_device "${ckdev}" ${rootdelay}); then + case ${ckarg1} in + *[!0-9]*) + # Use a file on the device + # ckarg1 is not numeric: ckarg1=filesystem, ckarg2=path + mount -r -t "$ckarg1" "$resolved" /ckey + dd if="/ckey/$ckarg2" of="$ckeyfile" >/dev/null 2>&1 + umount /ckey + ;; + *) + # Read raw data from the block device + # ckarg1 is numeric: ckarg1=offset, ckarg2=length + dd if="$resolved" of="$ckeyfile" bs=1 skip="$ckarg1" count="$ckarg2" >/dev/null 2>&1 + ;; + esac + fi + [ ! -f ${ckeyfile} ] && echo "Keyfile could not be opened. Reverting to passphrase." + fi + + if [ -n "${cryptdevice}" ]; then + DEPRECATED_CRYPT=0 + IFS=: read cryptdev cryptname cryptoptions <<EOF +$cryptdevice3 +EOF + else + DEPRECATED_CRYPT=1 + cryptdev="${root}" + cryptname="root" + fi + + # This may happen if third party hooks do the crypt setup + if [ -b "/dev/mapper/${cryptname}" ]; then + echo "Device ${cryptname} already exists, not doing any crypt setup." + return 0 + fi + + warn_deprecated() { + echo "The syntax 'root=${root}' where '${root}' is an encrypted volume is deprecated" + echo "Use 'cryptdevice=${root}:root root=/dev/mapper/root' instead." + } + + for cryptopt in ${cryptoptions//,/ }; do + case ${cryptopt} in + allow-discards) + cryptargs="${cryptargs} --allow-discards" + ;; + *) + echo "Encryption option '${cryptopt}' not known, ignoring." >&2 + ;; + esac + done + + if resolved=$(resolve_device "${cryptdev}" ${rootdelay}); then + if cryptsetup isLuks ${resolved} >/dev/null 2>&1; then + [ ${DEPRECATED_CRYPT} -eq 1 ] && warn_deprecated + dopassphrase=1 + # If keyfile exists, try to use that + if [ -f ${ckeyfile} ]; then + if eval cryptsetup --key-file ${ckeyfile} open --type luks ${resolved} ${cryptname} ${cryptargs} ${CSQUIET}; then + dopassphrase=0 + else + echo "Invalid keyfile. Reverting to passphrase." + fi + fi + # Ask for a passphrase + if [ ${dopassphrase} -gt 0 ]; then + echo "" + echo "A password is required to access the ${cryptname} volume:" + + #loop until we get a real password + while ! eval cryptsetup open --type luks ${resolved} ${cryptname} ${cryptargs} ${CSQUIET}; do + sleep 2; + done + fi + if [ -e "/dev/mapper/${cryptname}" ]; then + if [ ${DEPRECATED_CRYPT} -eq 1 ]; then + export root="/dev/mapper/root" + fi + else + err "Password succeeded, but ${cryptname} creation failed, aborting..." + return 1 + fi + elif [ -n "${crypto}" ]; then + [ ${DEPRECATED_CRYPT} -eq 1 ] && warn_deprecated + msg "Non-LUKS encrypted device found..." + if echo "$crypto" | awk -F: '{ exit(NF == 5) }'; then + err "Verify parameter format: crypto=hash:cipher:keysize:offset:skip" + err "Non-LUKS decryption not attempted..." + return 1 + fi + exe="cryptsetup open --type plain $resolved $cryptname $cryptargs" + IFS=: read c_hash c_cipher c_keysize c_offset c_skip <<EOF +$crypto +EOF + [ -n "$c_hash" ] && exe="$exe --hash '$c_hash'" + [ -n "$c_cipher" ] && exe="$exe --cipher '$c_cipher'" + [ -n "$c_keysize" ] && exe="$exe --key-size '$c_keysize'" + [ -n "$c_offset" ] && exe="$exe --offset '$c_offset'" + [ -n "$c_skip" ] && exe="$exe --skip '$c_skip'" + if [ -f "$ckeyfile" ]; then + exe="$exe --key-file $ckeyfile" + else + echo "" + echo "A password is required to access the ${cryptname} volume:" + fi + eval "$exe $CSQUIET" + + if [ $? -ne 0 ]; then + err "Non-LUKS device decryption failed. verify format: " + err " crypto=hash:cipher:keysize:offset:skip" + return 1 + fi + if [ -e "/dev/mapper/${cryptname}" ]; then + if [ ${DEPRECATED_CRYPT} -eq 1 ]; then + export root="/dev/mapper/root" + fi + else + err "Password succeeded, but ${cryptname} creation failed, aborting..." + return 1 + fi + else + err "Failed to open encryption mapping: The device ${cryptdev} is not a LUKS volume and the crypto= paramater was not specified." + fi + fi + rm -f ${ckeyfile} +} + +# vim: set ft=sh ts=4 sw=4 et: diff --git a/encrypt4.hook b/encrypt4.hook new file mode 100644 index 0000000..2e241ef --- /dev/null +++ b/encrypt4.hook @@ -0,0 +1,143 @@ +#!/usr/bin/ash + +run_hook() { + modprobe -a -q dm-crypt >/dev/null 2>&1 + [ "${quiet}" = "y" ] && CSQUIET=">/dev/null" + + # Get keyfile if specified + ckeyfile="/crypto_keyfile.bin" + if [ -n "$cryptkey4" ]; then + IFS=: read ckdev ckarg1 ckarg2 <<EOF +$cryptkey4 +EOF + + if [ "$ckdev" = "rootfs" ]; then + ckeyfile=$ckarg1 + elif resolved=$(resolve_device "${ckdev}" ${rootdelay}); then + case ${ckarg1} in + *[!0-9]*) + # Use a file on the device + # ckarg1 is not numeric: ckarg1=filesystem, ckarg2=path + mount -r -t "$ckarg1" "$resolved" /ckey + dd if="/ckey/$ckarg2" of="$ckeyfile" >/dev/null 2>&1 + umount /ckey + ;; + *) + # Read raw data from the block device + # ckarg1 is numeric: ckarg1=offset, ckarg2=length + dd if="$resolved" of="$ckeyfile" bs=1 skip="$ckarg1" count="$ckarg2" >/dev/null 2>&1 + ;; + esac + fi + [ ! -f ${ckeyfile} ] && echo "Keyfile could not be opened. Reverting to passphrase." + fi + + if [ -n "${cryptdevice}" ]; then + DEPRECATED_CRYPT=0 + IFS=: read cryptdev cryptname cryptoptions <<EOF +$cryptdevice4 +EOF + else + DEPRECATED_CRYPT=1 + cryptdev="${root}" + cryptname="root" + fi + + # This may happen if third party hooks do the crypt setup + if [ -b "/dev/mapper/${cryptname}" ]; then + echo "Device ${cryptname} already exists, not doing any crypt setup." + return 0 + fi + + warn_deprecated() { + echo "The syntax 'root=${root}' where '${root}' is an encrypted volume is deprecated" + echo "Use 'cryptdevice=${root}:root root=/dev/mapper/root' instead." + } + + for cryptopt in ${cryptoptions//,/ }; do + case ${cryptopt} in + allow-discards) + cryptargs="${cryptargs} --allow-discards" + ;; + *) + echo "Encryption option '${cryptopt}' not known, ignoring." >&2 + ;; + esac + done + + if resolved=$(resolve_device "${cryptdev}" ${rootdelay}); then + if cryptsetup isLuks ${resolved} >/dev/null 2>&1; then + [ ${DEPRECATED_CRYPT} -eq 1 ] && warn_deprecated + dopassphrase=1 + # If keyfile exists, try to use that + if [ -f ${ckeyfile} ]; then + if eval cryptsetup --key-file ${ckeyfile} open --type luks ${resolved} ${cryptname} ${cryptargs} ${CSQUIET}; then + dopassphrase=0 + else + echo "Invalid keyfile. Reverting to passphrase." + fi + fi + # Ask for a passphrase + if [ ${dopassphrase} -gt 0 ]; then + echo "" + echo "A password is required to access the ${cryptname} volume:" + + #loop until we get a real password + while ! eval cryptsetup open --type luks ${resolved} ${cryptname} ${cryptargs} ${CSQUIET}; do + sleep 2; + done + fi + if [ -e "/dev/mapper/${cryptname}" ]; then + if [ ${DEPRECATED_CRYPT} -eq 1 ]; then + export root="/dev/mapper/root" + fi + else + err "Password succeeded, but ${cryptname} creation failed, aborting..." + return 1 + fi + elif [ -n "${crypto}" ]; then + [ ${DEPRECATED_CRYPT} -eq 1 ] && warn_deprecated + msg "Non-LUKS encrypted device found..." + if echo "$crypto" | awk -F: '{ exit(NF == 5) }'; then + err "Verify parameter format: crypto=hash:cipher:keysize:offset:skip" + err "Non-LUKS decryption not attempted..." + return 1 + fi + exe="cryptsetup open --type plain $resolved $cryptname $cryptargs" + IFS=: read c_hash c_cipher c_keysize c_offset c_skip <<EOF +$crypto +EOF + [ -n "$c_hash" ] && exe="$exe --hash '$c_hash'" + [ -n "$c_cipher" ] && exe="$exe --cipher '$c_cipher'" + [ -n "$c_keysize" ] && exe="$exe --key-size '$c_keysize'" + [ -n "$c_offset" ] && exe="$exe --offset '$c_offset'" + [ -n "$c_skip" ] && exe="$exe --skip '$c_skip'" + if [ -f "$ckeyfile" ]; then + exe="$exe --key-file $ckeyfile" + else + echo "" + echo "A password is required to access the ${cryptname} volume:" + fi + eval "$exe $CSQUIET" + + if [ $? -ne 0 ]; then + err "Non-LUKS device decryption failed. verify format: " + err " crypto=hash:cipher:keysize:offset:skip" + return 1 + fi + if [ -e "/dev/mapper/${cryptname}" ]; then + if [ ${DEPRECATED_CRYPT} -eq 1 ]; then + export root="/dev/mapper/root" + fi + else + err "Password succeeded, but ${cryptname} creation failed, aborting..." + return 1 + fi + else + err "Failed to open encryption mapping: The device ${cryptdev} is not a LUKS volume and the crypto= paramater was not specified." + fi + fi + rm -f ${ckeyfile} +} + +# vim: set ft=sh ts=4 sw=4 et: |