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https://github.com/linuxboot/heads.git
synced 2024-12-24 07:06:42 +00:00
remove older qubes-specific files, no longer required in generic boot env
This commit is contained in:
Trammell Hudson
parent
22282da905
commit
831dca5124
@ -1,27 +0,0 @@
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# Configuration for a x230 running Qubes OS
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BOARD=x230
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CONFIG_CRYPTSETUP=y
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CONFIG_FLASHROM=y
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CONFIG_GPG=y
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CONFIG_KEXEC=y
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CONFIG_UTIL_LINUX=y
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CONFIG_LVM2=y
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CONFIG_MBEDTLS=y
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CONFIG_PCIUTILS=y
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CONFIG_POPT=y
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CONFIG_QRENCODE=y
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CONFIG_TPMTOTP=y
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CONFIG_XEN=y
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CONFIG_DROPBEAR=y
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CONFIG_LINUX_USB=y
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CONFIG_LINUX_E1000E=y
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CONFIG_BOOTSCRIPT=/bin/qubes-init
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CONFIG_USB_BOOT_DEV="/dev/sdb1"
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# Disks encrypted by the TPM LUKS key
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CONFIG_QUBES_BOOT_DEV="/dev/sda1"
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CONFIG_QUBES_VG="qubes_dom0"
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@ -1,11 +0,0 @@
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#!/bin/sh
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# Generate a crypttab file for all the devices that are
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# present on the system. This is a total hack since the
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# rd.luks.key=/secret.key should be sufficient.
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keyfile=/secret.key
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for dev in /dev/sd*; do
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uuid=`cryptsetup luksUUID "$dev" 2>/dev/null` || continue
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echo "luks-$uuid /dev/disk/by-uuid/$uuid $keyfile luks"
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done
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@ -1,38 +0,0 @@
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#!/bin/sh
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# Final stage to start qubes given a Xen, dom0 kernel and initrd
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# get the UUID of the root file system
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# busybox blkid doesn't have a "just the UUID" option
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. /etc/functions
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. /etc/config
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XEN="$1"
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KERNEL="$2"
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INITRD="$3"
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if [ -z "$XEN" -o -z "$KERNEL" -o -z "$INITRD" ]; then
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die "Usage: $0 /boot/xen... /boot/vmlinuz... /boot/initramfs..."
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fi
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# Activate the dom0 group, if it isn't already active
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lvm vgchange -a y "$CONFIG_QUBES_VG" \
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|| die "$CONFIG_QUBES_VG: LVM volume group activate failed"
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ROOT_UUID=`blkid /dev/$CONFIG_QUBES_VG/00 | cut -d\" -f2`
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if [ -z "$ROOT_UUID" ]; then
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die "$CONFIG_QUBES_VG/00: No UUID for /"
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fi
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echo "$CONFIG_QUBES_VG/00: UUID=$ROOT_UUID"
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# command line arguments are include in the signature on this script,
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echo '+++ Loading kernel and initrd'
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kexec \
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-l \
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--module "$KERNEL root=/dev/mapper/luks-$ROOT_UUID ro rd.qubes.hide_all_usb" \
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--module "$INITRD" \
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--command-line "no-real-mode reboot=no" \
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"${XEN}" \
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|| die "kexec load failed"
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echo "+++ Starting Qubes..."
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exec kexec -e
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@ -1,83 +0,0 @@
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#!/bin/sh
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# Boot a Qubes installation that has already been setup.
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# This depends on the PCR 4 being "normal-boot":
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# f8fa3b6e32e7c6fe04c366e74636e505b28f3b0d
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# which is only set if the top level /init script has started
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# without user intervention or dropping into a recovery shell.
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. /etc/functions
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. /etc/config
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if [ "$1" = "recovery" ]; then
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warn "Recovery mode boot; ignoring key failures"
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RECOVERY=1
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fi
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# TODO: Allow /boot to be encrypted?
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# This would require a different TPM key, a user passphrase to decrypt it,
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# or loading the USB modules to talk to a Yubikey to get the thing.
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if ! grep -q /boot /proc/mounts ; then
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mount -o ro "$CONFIG_QUBES_BOOT_DEV" /boot \
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|| recovery '$CONFIG_BOOT_DEV: Unable to mount /boot'
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fi
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BOOT_HASHES=/boot/boot.hashes
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if [ ! -r "$BOOT_HASHES" ]; then
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recovery "$BOOT_HASHES does not exist; re-run qubes-update"
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fi
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# Verify the signature on the hashes
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gpgv "$BOOT_HASHES.asc" "$BOOT_HASHES" \
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|| recovery 'boot hashes signature failed'
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# Retrieve the TPM counter ID and generate its current value
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TPM_COUNTER=`grep counter $BOOT_HASHES | cut -d- -f2`
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if [ -z "$TPM_COUNTER" ]; then
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recovery "$BOOT_HASHES: TPM counter not found?"
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fi
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read_tpm_counter $TPM_COUNTER
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# Check the hashes of all the files
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sha256sum -c "$BOOT_HASHES" \
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|| recovery "$BOOT_HASHES: hash mismatch"
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XEN=`grep /boot/xen $BOOT_HASHES | cut -d\ -f3 | tail -1`
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KERNEL=`grep /boot/vmlin $BOOT_HASHES | cut -d\ -f3 | tail -1`
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INITRD=`grep /boot/initram $BOOT_HASHES | cut -d\ -f3 | tail -1`
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# Activate the dom0 group
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lvm vgchange -a y "$CONFIG_QUBES_VG" \
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|| recovery "$CONFIG_QUBES_VG: LVM volume group activate failed"
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# Measure the LUKS headers before we unseal the disk key
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qubes-measure-luks /dev/$CONFIG_QUBES_VG/* \
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|| recovery "LUKS measure failed"
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# Unpack the initrd and fixup the /etc/crypttab
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# this is a hack to split it into two parts since
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# we know that the first 0x3400 bytes are the microcode
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INITRD_DIR=/tmp/secret/initrd
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SECRET_CPIO=/tmp/secret/initrd.cpio
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mkdir -p "$INITRD_DIR/etc"
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# Attempt to unseal the disk key from the TPM
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# should we give this some number of tries?
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if ! unseal-key "$INITRD_DIR/secret.key" ; then
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warn 'Unseal disk key failed'
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if [ -z "$RECOVERY" ]; then
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recovery 'Starting recovery shell'
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fi
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fi
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# Override PCR 4 so that user can't read the key
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tpm extend -ix 4 -ic qubes \
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|| recovery 'Unable to scramble PCR'
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echo '+++ Building initrd'
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( cd "$INITRD_DIR" ; find . | cpio -H newc -o ) > "$SECRET_CPIO"
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cat "$INITRD" >> "$SECRET_CPIO"
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/bin/qubes-boot "$XEN" "$KERNEL" "$SECRET_CPIO"
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recovery "Something failed..."
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@ -1,29 +0,0 @@
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#!/bin/sh
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# Attempt to install qubes using the recovery shell and the pre-built
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# version of Xen
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. /etc/functions
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DEV="$1"
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if [ -z "$DEV" ]; then
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DEV="/dev/sdb2"
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fi
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mount-usb "$DEV" \
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|| die "$DEV: Unable to mount?"
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cd /media/efi/boot \
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|| die "$DEV: cd to /media/efi/boot failed?"
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kexec -l \
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--module "./vmlinuz inst.stage2=hd:LABEL=Qubes-R3.2-x86_64" \
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--module "./initrd.img" \
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--command-line "no-real-mode reboot=no" \
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/bin/xen.gz \
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|| die "$DEV: kexec -l failed?"
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warn "Starting installer..."
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sleep 1
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kexec -e
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die "$DEV: kexec -e failed?"
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@ -1,45 +0,0 @@
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#!/bin/sh
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# Update the /boot partition signatures
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set -o pipefail
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. /etc/functions
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XEN="$1"
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KERNEL="$2"
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INITRD="$3"
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BOOT_HASHES="/boot/boot.hashes"
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if [ -z "$XEN" -o -z "$KERNEL" -o -z "$INITRD" ]; then
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die "Usage: $0 /boot/xen... /boot/vmlinuz... /boot/initramfs..."
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fi
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confirm_gpg_card
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check_tpm_counter $BOOT_HASHES
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mount -o rw,remount /boot \
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|| die "Could not remount /boot"
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increment_tpm_counter $TPM_COUNTER
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sha256sum \
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"$XEN" \
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"$KERNEL" \
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"$INITRD" \
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"/tmp/counter-$TPM_COUNTER" \
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| tee "$BOOT_HASHES"
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for tries in 1 2 3; do
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if gpg \
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--digest-algo SHA256 \
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--detach-sign \
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-a \
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"$BOOT_HASHES" \
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; then
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mount -o ro,remount /boot
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exit 0
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fi
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done
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warn "$BOOT_HASHES: Unable to sign boot hashes"
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mount -o ro,remount /boot
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exit 1
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@ -1,126 +0,0 @@
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#!/bin/sh
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# This will generate a disk encryption key and seal / ecncrypt
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# with the current PCRs and then store it in the TPM NVRAM.
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# It will then need to be bundled into initrd that is booted with Qubes.
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TPM_INDEX=3
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TPM_SIZE=312
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KEY_FILE="/tmp/secret/secret.key"
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TPM_SEALED="/tmp/secret/secret.sealed"
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RECOVERY_KEY="/tmp/secret/recovery.key"
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. /etc/functions
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. /etc/config
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# Activate the LVM volume group
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VOLUME_GROUP=qubes_dom0
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lvm vgchange -a y $VOLUME_GROUP \
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|| die "$VOLUME_GROUP: unable to activate volume group"
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# Key slot 0 is the manual recovery pass phrase
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# that they user entered when they installed Qubes,
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# key slot 1 is the one that we've generated.
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read -s -p "Enter disk recovery key: " disk_password
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echo -n "$disk_password" > "$RECOVERY_KEY"
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echo
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# Remove all the old keys from slot 1
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for dev in /dev/$VOLUME_GROUP/*; do
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echo "++++++ $dev: Removing old key slot"
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cryptsetup luksKillSlot \
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--key-file "$RECOVERY_KEY" \
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$dev 1 \
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|| warn "$dev: ignoring problem"
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done
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read -s -p "New disk unlock password for booting: " key_password
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echo
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read -s -p "Repeat unlock code: " key_password2
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echo
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if [ "$key_password" != "$key_password2" ]; then
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die "Key passwords do not match"
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fi
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dd \
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if=/dev/urandom \
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of="$KEY_FILE" \
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bs=1 \
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count=128 \
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2>/dev/null \
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|| die "Unable to generate 128 random bytes"
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for dev in /dev/$VOLUME_GROUP/*; do
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echo "+++++ $dev: Adding key"
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cryptsetup luksAddKey \
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--key-file "$RECOVERY_KEY" \
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--key-slot 1 \
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$dev "$KEY_FILE" \
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|| die "$dev: Unable to add key"
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done
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# Now that we have setup the new keys, measure the PCRs
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# We don't care what ends up in PCR 6; we just want
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# to get the /tmp/luksDump.txt file. We use PCR16
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# since it should still be zero
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/bin/qubes-measure-luks /dev/$VOLUME_GROUP/* \
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|| die "Unable to measure the LUKS headers"
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luks_pcr=`tpm calcfuturepcr -ix 16 -if /tmp/luksDump.txt`
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# Note that PCR 4 needs to be set with the "normal-boot"
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# path value, which we do not have right now since we are
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# in a recovery shell.
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# used to be -ix 4 f8fa3b6e32e7c6fe04c366e74636e505b28f3b0d \
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# now just all zeros in a normal boot
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# PCR 5 must be all zero since no kernel modules should have
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# been loaded during a normal boot, but might have been
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# loaded in the recovery shell.
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# Otherwise use the current values of the PCRs, which will be read
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# from the TPM as part of the sealing ("X").
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tpm sealfile2 \
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-if "$KEY_FILE" \
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-of "$TPM_SEALED" \
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-pwdd "$key_password" \
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-hk 40000000 \
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-ix 0 X \
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-ix 1 X \
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-ix 2 X \
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-ix 3 X \
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-ix 4 0000000000000000000000000000000000000000 \
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-ix 5 0000000000000000000000000000000000000000 \
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-ix 6 $luks_pcr \
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|| die "Unable to seal secret"
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rm -f "$KEY_FILE"
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# try it without the owner password first
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if ! tpm nv_writevalue \
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-in $TPM_INDEX \
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-if "$TPM_SEALED" \
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; then
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# to create an nvram space we need the TPM owner password
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# and the TPM physical presence must be asserted.
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#
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# The permissions are 0 since there is nothing special
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# about the sealed file
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tpm physicalpresence -s \
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|| warn "Warning: Unable to assert physical presence"
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read -s -p "TPM Owner password: " tpm_password
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echo
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tpm nv_definespace \
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-in $TPM_INDEX \
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-sz $TPM_SIZE \
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-pwdo "$tpm_password" \
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-per 0 \
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|| warn "Warning: Unable to define NVRAM space; trying anyway"
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tpm nv_writevalue \
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-in $TPM_INDEX \
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-if "$TPM_SEALED" \
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|| die "Unable to write sealed secret to NVRAM"
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fi
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rm "$TPM_SEALED" \
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@ -1,30 +0,0 @@
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#!/bin/sh
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mount -o ro -t ext4 /dev/sda1 /boot
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die() { echo >&2 "$*"; exit 1; }
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XEN=/boot/xen-4.6.3.gz
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INITRD=/boot/initramfs-4.4.14-11.pvops.qubes.x86_64.img
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KERNEL=/boot/vmlinuz-4.4.14-11.pvops.qubes.x86_64
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echo "+++ Checking $XEN"
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gpgv "${XEN}.asc" "${XEN}" || die "Xen signature failed"
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echo "+++ Checking $INITRD"
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gpgv "${INITRD}.asc" "${INITRD}" || die "Initrd signature failed"
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echo "+++ Checking $KERNEL"
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gpgv "${KERNEL}.asc" "${KERNEL}" || die "Kernel signature failed"
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# should also check xen command line arguments!
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# should also check kernel command line arguments!
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kexec \
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-l \
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--module "${KERNEL} root=LABEL=root rhgb" \
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--module "${INITRD}" \
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--command-line "no-real-mode reboot=no console=vga dom0_mem=min:1024M dom0_mem=max:4096M" \
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"${XEN}"
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echo "Ready to start Xen: run 'kexec -e' to execute it"
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@ -1,92 +0,0 @@
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#!/bin/sh
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# This will unseal and unecncrypt the drive encryption key from the TPM
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# The TOTP secret will be shown to the user on each encryption attempt.
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# It will then need to be bundled into initrd that is booted with Qubes.
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TPM_INDEX=3
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TPM_SIZE=312
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. /etc/functions
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mkdir -p /tmp/secret
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sealed_file="/tmp/secret/sealed.key"
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key_file="$1"
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if [ -z "$key_file" ]; then
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key_file="/tmp/secret/secret.key"
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fi
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tpm nv_readvalue \
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-in "$TPM_INDEX" \
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-sz "$TPM_SIZE" \
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-of "$sealed_file" \
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|| die "Unable to read key from TPM NVRAM"
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get_password()
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{
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last_half=X
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while true; do
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# update the TOTP code every thirty seconds
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date=`date "+%Y-%m-%d %H:%M:%S"`
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seconds=`date "+%s"`
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half=`expr \( $seconds % 60 \) / 30`
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if [ "$half" != "$last_half" ]; then
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last_half=$half;
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TOTP=`unseal-totp` \
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|| die "TOTP code generation failed"
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fi
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echo -n "$date $TOTP: "
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# read the first character, non-blocking
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read \
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-t 1 \
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-n 1 \
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-s \
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-p "Enter unlock password: " \
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tpm_password_1 \
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&& break
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# nothing typed, redraw the line
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echo -ne '\r'
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done
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# they have started typing, read the rest, blocking
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if [ -z "$tpm_password_1" ]; then
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# they hit enter; we should exit gracefully
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tpm_password=""
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else
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# they hit something else, read the rest of the line
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read \
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-s \
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-p '' \
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tpm_password_2
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tpm_password="$tpm_password_1$tpm_password_2"
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fi
|
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|
||||
# clean up with a newline
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echo
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|
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}
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|
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for tries in 1 2 3; do
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get_password
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if tpm unsealfile \
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-if "$sealed_file" \
|
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-of "$key_file" \
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-pwdd "$tpm_password" \
|
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-hk 40000000 \
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; then
|
||||
rm -f /tmp/secret/sealed
|
||||
exit 0
|
||||
fi
|
||||
|
||||
pcrs
|
||||
warn "Unable to unseal disk encryption key"
|
||||
done
|
||||
|
||||
die "Retry count exceeded..."
|
||||
@ -1,21 +0,0 @@
|
||||
#!/bin/sh
|
||||
# Add additional files to the initrd cpio so that we can pass
|
||||
# new keys to the Qubes startup routines.
|
||||
# Usage:
|
||||
# wrap-cpio /boot/initrd.blah /tmp/root/ > /tmp/new.cpio
|
||||
|
||||
die() { echo >&2 "$@"; exit 1; }
|
||||
warn() { echo >&2 "$@"; }
|
||||
|
||||
cpio_file="$1"
|
||||
if [ -z "$cpio_file" ]; then
|
||||
die "Initial cpio must be specified"
|
||||
fi
|
||||
|
||||
new_dir="$2"
|
||||
if [ -z "$new_dir" ]; then
|
||||
die "Additional directory must be specified"
|
||||
fi
|
||||
|
||||
( cd "$new_dir" ; find . | cpio -H newc -ov )
|
||||
cat "$cpio_file"
|
||||
Loading…
Reference in New Issue
Block a user