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branch master updated: system: Allow separated /boot and encrypted root.
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branch master updated: system: Allow separated /boot and encrypted root. |
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Mon, 21 Dec 2020 15:17:32 -0500 |
This is an automated email from the git hooks/post-receive script.
m1gu3l pushed a commit to branch master
in repository guix.
The following commit(s) were added to refs/heads/master by this push:
new f00e68a system: Allow separated /boot and encrypted root.
f00e68a is described below
commit f00e68ace070fd5240a4b5874e61c26f6e909b6c
Author: Miguel Ángel Arruga Vivas <rosen644835@gmail.com>
AuthorDate: Mon Dec 21 13:02:01 2020 +0100
system: Allow separated /boot and encrypted root.
* gnu/bootloader/grub.scm (grub-configuration-file): New parameter
store-crypto-devices.
[crypto-devices]: New helper function.
[builder]: Use crypto-devices.
* gnu/machine/ssh.scm (roll-back-managed-host): Use
boot-parameters-store-crypto-devices to provide its contents to the
bootloader configuration generation process.
* gnu/tests/install.scm (%encrypted-root-not-boot-os,
%encrypted-root-not-boot-os): New os declaration.
(%encrypted-root-not-boot-installation-script): New script, whose contents
were initially taken from %encrypted-root-installation-script.
(%test-encrypted-root-not-boot-os): New test.
* gnu/system.scm (define-module): Export
operating-system-bootoader-crypto-devices and
boot-parameters-store-crypto-devices.
(<boot-parameters>): Add field store-crypto-devices.
(read-boot-parameters): Parse store-crypto-devices field.
[uuid-sexp->uuid]: New helper function extracted from
device-sexp->device.
(operating-system-bootloader-crypto-devices): New function.
(operating-system-bootcfg): Use
operating-system-bootloader-crypto-devices to provide its contents to
the bootloader configuration generation process.
(operating-system-boot-parameters): Add store-crypto-devices to the
generated boot-parameters.
(operating-system-boot-parameters-file): Likewise to the file with
the serialized structure.
* guix/scripts/system.scm (reinstall-bootloader): Use
boot-parameters-store-crypto-devices to provide its contents to the
bootloader configuration generation process.
* tests/boot-parameters.scm (%default-store-crypto-devices): New
variable.
(%grub-boot-parameters, test-read-boot-parameters): Use
%default-store-crypto-devices.
(tests store-crypto-devices): New tests.
---
gnu/bootloader/grub.scm | 21 +++++++++-
gnu/machine/ssh.scm | 3 ++
gnu/system.scm | 59 ++++++++++++++++++++++++++-
gnu/tests/install.scm | 102 ++++++++++++++++++++++++++++++++++++++++++++++
guix/scripts/system.scm | 2 +
tests/boot-parameters.scm | 30 +++++++++++++-
6 files changed, 212 insertions(+), 5 deletions(-)
diff --git a/gnu/bootloader/grub.scm b/gnu/bootloader/grub.scm
index af7b756..29c81ae 100644
--- a/gnu/bootloader/grub.scm
+++ b/gnu/bootloader/grub.scm
@@ -4,7 +4,7 @@
;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
;;; Copyright © 2017, 2020 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019, 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
-;;; Copyright © 2019 Miguel Ángel Arruga Vivas <rosen644835@gmail.com>
+;;; Copyright © 2019, 2020 Miguel Ángel Arruga Vivas <rosen644835@gmail.com>
;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2020 Stefan <stefan-guix@vodafonemail.de>
;;;
@@ -359,11 +359,14 @@ code."
(locale #f)
(system (%current-system))
(old-entries '())
+ (store-crypto-devices '())
store-directory-prefix)
"Return the GRUB configuration file corresponding to CONFIG, a
<bootloader-configuration> object, and where the store is available at
STORE-FS, a <file-system> object. OLD-ENTRIES is taken to be a list of menu
entries corresponding to old generations of the system.
+STORE-CRYPTO-DEVICES contain the UUIDs of the encrypted units that must
+be unlocked to access the store contents.
STORE-DIRECTORY-PREFIX may be used to specify a store prefix, as is required
when booting a root file system on a Btrfs subvolume."
(define all-entries
@@ -411,6 +414,21 @@ menuentry ~s {
(string-join (map string-join '#$modules)
"\n module " 'prefix))))))
+ (define (crypto-devices)
+ (define (crypto-device->cryptomount dev)
+ (if (uuid? dev)
+ #~(format port "cryptomount -u ~a~%"
+ ;; cryptomount only accepts UUID without the hypen.
+ #$(string-delete #\- (uuid->string dev)))
+ ;; Other type of devices aren't implemented.
+ #~()))
+ (let ((devices (map crypto-device->cryptomount store-crypto-devices))
+ ;; XXX: Add luks2 when grub 2.06 is packaged.
+ (modules #~(format port "insmod luks~%")))
+ (if (null? devices)
+ devices
+ (cons modules devices))))
+
(define (sugar)
(let* ((entry (first all-entries))
(device (menu-entry-device entry))
@@ -474,6 +492,7 @@ keymap ~a~%" #$keymap))))
"# This file was generated from your Guix configuration.
Any changes
# will be lost upon reconfiguration.
")
+ #$@(crypto-devices)
#$(sugar)
#$locale-config
#$keyboard-layout-config
diff --git a/gnu/machine/ssh.scm b/gnu/machine/ssh.scm
index 1b748c8..08c653b 100644
--- a/gnu/machine/ssh.scm
+++ b/gnu/machine/ssh.scm
@@ -484,6 +484,8 @@ an environment type of 'managed-host."
(list (second boot-parameters))))
(locale -> (boot-parameters-locale
(second boot-parameters)))
+ (crypto-dev -> (boot-parameters-store-crypto-devices
+ (second boot-parameters)))
(store-dir -> (boot-parameters-store-directory-prefix
(second boot-parameters)))
(old-entries -> (map boot-parameters->menu-entry
@@ -496,6 +498,7 @@ an environment type of 'managed-host."
bootloader))
bootloader entries
#:locale locale
+ #:store-crypto-devices crypto-dev
#:store-directory-prefix store-dir
#:old-entries old-entries)))
(remote-result (machine-remote-eval machine
remote-exp)))
diff --git a/gnu/system.scm b/gnu/system.scm
index fcf3310..c284a18 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -5,7 +5,7 @@
;;; Copyright © 2016 Chris Marusich <cmmarusich@gmail.com>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019 Meiyo Peng <meiyo.peng@gmail.com>
-;;; Copyright © 2019 Miguel Ángel Arruga Vivas <rosen644835@gmail.com>
+;;; Copyright © 2019, 2020 Miguel Ángel Arruga Vivas <rosen644835@gmail.com>
;;; Copyright © 2020 Danny Milosavljevic <dannym@scratchpost.org>
;;; Copyright © 2020 Brice Waegeneire <brice@waegenei.re>
;;; Copyright © 2020 Florian Pelz <pelzflorian@pelzflorian.de>
@@ -112,6 +112,7 @@
operating-system-store-file-system
operating-system-user-mapped-devices
operating-system-boot-mapped-devices
+ operating-system-bootloader-crypto-devices
operating-system-activation-script
operating-system-user-accounts
operating-system-shepherd-service-names
@@ -147,6 +148,7 @@
boot-parameters-root-device
boot-parameters-bootloader-name
boot-parameters-bootloader-menu-entries
+ boot-parameters-store-crypto-devices
boot-parameters-store-device
boot-parameters-store-directory-prefix
boot-parameters-store-mount-point
@@ -305,6 +307,8 @@ directly by the user."
(store-device boot-parameters-store-device)
(store-mount-point boot-parameters-store-mount-point)
(store-directory-prefix boot-parameters-store-directory-prefix)
+ (store-crypto-devices boot-parameters-store-crypto-devices
+ (default '()))
(locale boot-parameters-locale)
(kernel boot-parameters-kernel)
(kernel-arguments boot-parameters-kernel-arguments)
@@ -338,6 +342,13 @@ file system labels."
(if (string-prefix? "/" device)
device
(file-system-label device))))))
+ (define uuid-sexp->uuid
+ (match-lambda
+ (('uuid (? symbol? type) (? bytevector? bv))
+ (bytevector->uuid bv type))
+ (x
+ (warning (G_ "unrecognized uuid ~a at '~a'~%") x (port-filename port))
+ #f)))
(match (read port)
(('boot-parameters ('version 0)
@@ -411,6 +422,23 @@ file system labels."
;; No store found, old format.
#f)))
+ (store-crypto-devices
+ (match (assq 'store rest)
+ (('store . store-data)
+ (match (assq 'crypto-devices store-data)
+ (('crypto-devices (devices ...))
+ (map uuid-sexp->uuid devices))
+ (('crypto-devices dev)
+ (warning (G_ "unrecognized crypto-devices ~S at '~a'~%")
+ dev (port-filename port))
+ '())
+ (_
+ ;; No crypto-devices found.
+ '())))
+ (_
+ ;; No store found, old format.
+ '())))
+
(store-mount-point
(match (assq 'store rest)
(('store ('device _) ('mount-point mount-point) _ ...)
@@ -525,6 +553,26 @@ from the initrd."
(any file-system-needed-for-boot? users)))
devices)))
+(define (operating-system-bootloader-crypto-devices os)
+ "Return the subset of mapped devices that the bootloader must open.
+Only devices specified by uuid are supported."
+ (define (valid-crypto-device? dev)
+ (or (uuid? dev)
+ (begin
+ (warning (G_ "\
+mapped-device '~a' may not be mounted by the bootloader.~%")
+ dev)
+ #f)))
+ (filter-map (match-lambda
+ ((and (= mapped-device-type type)
+ (= mapped-device-source source))
+ (and (eq? luks-device-mapping type)
+ (valid-crypto-device? source)
+ source))
+ (_ #f))
+ ;; XXX: Ordering is important, we trust the returned one.
+ (operating-system-boot-mapped-devices os)))
+
(define (device-mapping-services os)
"Return the list of device-mapping services for OS as a list."
(map device-mapping-service
@@ -1261,6 +1309,7 @@ a list of <menu-entry>, to populate the \"old entries\"
menu."
(root-fs (operating-system-root-file-system os))
(root-device (file-system-device root-fs))
(locale (operating-system-locale os))
+ (crypto-devices (operating-system-bootloader-crypto-devices os))
(params (operating-system-boot-parameters
os root-device
#:system-kernel-arguments? #t))
@@ -1274,6 +1323,7 @@ a list of <menu-entry>, to populate the \"old entries\"
menu."
(generate-config-file bootloader-conf (list entry)
#:old-entries old-entries
#:locale locale
+ #:store-crypto-devices crypto-devices
#:store-directory-prefix
(btrfs-store-subvolume-file-name file-systems))))
@@ -1313,6 +1363,7 @@ such as '--root' and '--load' to <boot-parameters>."
(operating-system-initrd-file os)))
(store (operating-system-store-file-system os))
(file-systems (operating-system-file-systems os))
+ (crypto-devices (operating-system-bootloader-crypto-devices os))
(locale (operating-system-locale os))
(bootloader (bootloader-configuration-bootloader
(operating-system-bootloader os)))
@@ -1335,6 +1386,7 @@ such as '--root' and '--load' to <boot-parameters>."
(locale locale)
(store-device (ensure-not-/dev (file-system-device store)))
(store-directory-prefix (btrfs-store-subvolume-file-name file-systems))
+ (store-crypto-devices crypto-devices)
(store-mount-point (file-system-mount-point store)))))
(define (device->sexp device)
@@ -1393,7 +1445,10 @@ being stored into the \"parameters\" file)."
(mount-point #$(boot-parameters-store-mount-point
params))
(directory-prefix
- #$(boot-parameters-store-directory-prefix params))))
+ #$(boot-parameters-store-directory-prefix params))
+ (crypto-devices
+ #$(map device->sexp
+ (boot-parameters-store-crypto-devices params)))))
#:set-load-path? #f)))
(define-gexp-compiler (operating-system-compiler (os <operating-system>)
diff --git a/gnu/tests/install.scm b/gnu/tests/install.scm
index 71caa3a..bf94e97 100644
--- a/gnu/tests/install.scm
+++ b/gnu/tests/install.scm
@@ -63,6 +63,7 @@
%test-separate-home-os
%test-raid-root-os
%test-encrypted-root-os
+ %test-encrypted-root-not-boot-os
%test-btrfs-root-os
%test-btrfs-root-on-subvolume-os
%test-jfs-root-os
@@ -885,6 +886,107 @@ reboot\n")
;;;
+;;; LUKS-encrypted root file system and /boot in a non-encrypted partition.
+;;;
+
+(define-os-with-source (%encrypted-root-not-boot-os
+ %encrypted-root-not-boot-os-source)
+ ;; The OS we want to install.
+ (use-modules (gnu) (gnu tests) (srfi srfi-1))
+
+ (operating-system
+ (host-name "bootroot")
+ (timezone "Europe/Madrid")
+ (locale "en_US.UTF-8")
+
+ (bootloader (bootloader-configuration
+ (bootloader grub-bootloader)
+ (target "/dev/vdb")))
+
+ (mapped-devices (list (mapped-device
+ (source
+ (uuid "12345678-1234-1234-1234-123456789abc"))
+ (target "root")
+ (type luks-device-mapping))))
+ (file-systems (cons* (file-system
+ (device (file-system-label "my-boot"))
+ (mount-point "/boot")
+ (type "ext4"))
+ (file-system
+ (device "/dev/mapper/root")
+ (mount-point "/")
+ (type "ext4"))
+ %base-file-systems))
+ (users (cons (user-account
+ (name "alice")
+ (group "users")
+ (supplementary-groups '("wheel" "audio" "video")))
+ %base-user-accounts))
+ (services (cons (service marionette-service-type
+ (marionette-configuration
+ (imported-modules '((gnu services herd)
+ (guix combinators)))))
+ %base-services))))
+
+(define %encrypted-root-not-boot-installation-script
+ ;; Shell script for an installation with boot not encrypted but root
+ ;; encrypted.
+ (format #f "\
+. /etc/profile
+set -e -x
+guix --version
+
+export GUIX_BUILD_OPTIONS=--no-grafts
+ls -l /run/current-system/gc-roots
+parted --script /dev/vdb mklabel gpt \\
+ mkpart primary ext2 1M 3M \\
+ mkpart primary ext2 3M 50M \\
+ mkpart primary ext2 50M 1.6G \\
+ set 1 boot on \\
+ set 1 bios_grub on
+echo -n \"~a\" | cryptsetup luksFormat --uuid=\"~a\" -q /dev/vdb3 -
+echo -n \"~a\" | cryptsetup open --type luks --key-file - /dev/vdb3 root
+mkfs.ext4 -L my-root /dev/mapper/root
+mkfs.ext4 -L my-boot /dev/vdb2
+mount LABEL=my-root /mnt
+mkdir /mnt/boot
+mount LABEL=my-boot /mnt/boot
+echo \"Checking mounts\"
+mount
+herd start cow-store /mnt
+mkdir /mnt/etc
+cp /etc/target-config.scm /mnt/etc/config.scm
+guix system build /mnt/etc/config.scm
+guix system init /mnt/etc/config.scm /mnt --no-substitutes
+sync
+echo \"Debugging info\"
+blkid
+cat /mnt/boot/grub/grub.cfg
+reboot\n"
+ %luks-passphrase "12345678-1234-1234-1234-123456789abc"
+ %luks-passphrase))
+
+(define %test-encrypted-root-not-boot-os
+ (system-test
+ (name "encrypted-root-not-boot-os")
+ (description
+ "Test the manual installation on an OS with / in an encrypted partition
+but /boot on a different, non-encrypted partition. This test is expensive in
+terms of CPU and storage usage since we need to build (current-guix) and then
+store a couple of full system images.")
+ (value
+ (mlet* %store-monad
+ ((image (run-install %encrypted-root-not-boot-os
+ %encrypted-root-not-boot-os-source
+ #:script
+ %encrypted-root-not-boot-installation-script))
+ (command (qemu-command/writable-image image)))
+ (run-basic-test %encrypted-root-not-boot-os command
+ "encrypted-root-not-boot-os"
+ #:initialization enter-luks-passphrase)))))
+
+
+;;;
;;; Btrfs root file system.
;;;
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm
index 5427f87..0dcf2b3 100644
--- a/guix/scripts/system.scm
+++ b/guix/scripts/system.scm
@@ -391,6 +391,7 @@ STORE is an open connection to the store."
(params (first (profile-boot-parameters %system-profile
(list number))))
(locale (boot-parameters-locale params))
+ (store-crypto-devices (boot-parameters-store-crypto-devices params))
(store-directory-prefix
(boot-parameters-store-directory-prefix params))
(old-generations
@@ -406,6 +407,7 @@ STORE is an open connection to the store."
((bootloader-configuration-file-generator bootloader)
bootloader-config entries
#:locale locale
+ #:store-crypto-devices store-crypto-devices
#:store-directory-prefix store-directory-prefix
#:old-entries old-entries)))
(drvs -> (list bootcfg)))
diff --git a/tests/boot-parameters.scm b/tests/boot-parameters.scm
index a00b227..3deae56 100644
--- a/tests/boot-parameters.scm
+++ b/tests/boot-parameters.scm
@@ -50,6 +50,9 @@
(define %default-store-directory-prefix
(string-append "/" %default-btrfs-subvolume))
(define %default-store-mount-point (%store-prefix))
+(define %default-store-crypto-devices
+ (list (uuid "00000000-1111-2222-3333-444444444444")
+ (uuid "55555555-6666-7777-8888-999999999999")))
(define %default-multiboot-modules '())
(define %default-locale "es_ES.utf8")
(define %root-path "/")
@@ -67,6 +70,7 @@
(locale %default-locale)
(store-device %default-store-device)
(store-directory-prefix %default-store-directory-prefix)
+ (store-crypto-devices %default-store-crypto-devices)
(store-mount-point %default-store-mount-point)))
(define %default-operating-system
@@ -110,6 +114,8 @@
(with-store #t)
(store-device
(quote-uuid %default-store-device))
+ (store-crypto-devices
+ (map quote-uuid %default-store-crypto-devices))
(store-directory-prefix %default-store-directory-prefix)
(store-mount-point %default-store-mount-point))
(define (generate-boot-parameters)
@@ -125,12 +131,14 @@
(sexp-or-nothing " (kernel-arguments ~S)" kernel-arguments)
(sexp-or-nothing " (initrd ~S)" initrd)
(if with-store
- (format #false " (store~a~a~a)"
+ (format #false " (store~a~a~a~a)"
(sexp-or-nothing " (device ~S)" store-device)
(sexp-or-nothing " (mount-point ~S)"
store-mount-point)
(sexp-or-nothing " (directory-prefix ~S)"
- store-directory-prefix))
+ store-directory-prefix)
+ (sexp-or-nothing " (crypto-devices ~S)"
+ store-crypto-devices))
"")
(sexp-or-nothing " (locale ~S)" locale)
(sexp-or-nothing " (bootloader-name ~a)" bootloader-name)
@@ -158,6 +166,7 @@
(test-read-boot-parameters #:with-store #false)
(test-read-boot-parameters #:store-device #false)
(test-read-boot-parameters #:store-device 'false)
+ (test-read-boot-parameters #:store-crypto-devices #false)
(test-read-boot-parameters #:store-mount-point #false)
(test-read-boot-parameters #:store-directory-prefix #false)
(test-read-boot-parameters #:multiboot-modules #false)
@@ -254,6 +263,23 @@
(boot-parameters-store-mount-point
(test-read-boot-parameters #:with-store #false)))
+(test-equal "read, store-crypto-devices, default"
+ '()
+ (boot-parameters-store-crypto-devices
+ (test-read-boot-parameters #:store-crypto-devices #false)))
+
+;; XXX: <warning: unrecognized crypto-devices #f at '#f'>
+(test-equal "read, store-crypto-devices, false"
+ '()
+ (boot-parameters-store-crypto-devices
+ (test-read-boot-parameters #:store-crypto-devices 'false)))
+
+;; XXX: <warning: unrecognized crypto-device "bad" at '#f'>
+(test-equal "read, store-crypto-devices, string"
+ '()
+ (boot-parameters-store-crypto-devices
+ (test-read-boot-parameters #:store-crypto-devices "bad")))
+
;; For whitebox testing
(define operating-system-boot-parameters
(@@ (gnu system) operating-system-boot-parameters))
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- branch master updated: system: Allow separated /boot and encrypted root.,
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