Package: guix-patches;
Reported by: Lilah Tascheter <lilah <at> lunabee.space>
Date: Sun, 4 Aug 2024 03:52:01 UTC
Severity: normal
Tags: patch
Fix blocked by 73202: [PATCH] Preparation for bootloader rewrite.
Message #146 received at 72457 <at> debbugs.gnu.org (full text, mbox):
From: Lilah Tascheter <lilah <at> lunabee.space> To: 72457 <at> debbugs.gnu.org Cc: Lilah Tascheter <lilah <at> lunabee.space>, Sergey Trofimov <sarg <at> sarg.org.ru> Subject: [PATCH v3 11/15] gnu: bootloaders: Add uki-efi-bootloader. Date: Sun, 4 Aug 2024 15:31:57 -0500
* gnu/bootloader.scm (<bootloader-configuration>): New keypair field.
* gnu/bootloader/uki.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add bootloader/uki.scm.
Change-Id: I2097da9f3dd35137b3419f6d0545de26d53cb6da
---
gnu/bootloader.scm | 3 ++
gnu/bootloader/uki.scm | 96 ++++++++++++++++++++++++++++++++++++++++++
gnu/local.mk | 1 +
3 files changed, 100 insertions(+)
create mode 100644 gnu/bootloader/uki.scm
diff --git a/gnu/bootloader.scm b/gnu/bootloader.scm
index 6d1ecd9f00..b8116339ab 100644
--- a/gnu/bootloader.scm
+++ b/gnu/bootloader.scm
@@ -101,6 +101,7 @@ (define-module (gnu bootloader)
bootloader-configuration-default-entry
bootloader-configuration-efi-removable?
bootloader-configuration-32bit?
+ bootloader-configuration-keypair
bootloader-configuration-timeout
bootloader-configuration-keyboard-layout
bootloader-configuration-theme
@@ -524,6 +525,8 @@ (define-record-type* <bootloader-configuration>
(default #f)) ;bool
(32bit? bootloader-configuration-32bit?
(default #f)) ;bool
+ (keypair bootloader-configuration-keypair
+ (default #f)) ;(cert . priv) pair
(timeout bootloader-configuration-timeout
(default 5)) ;seconds as integer
(keyboard-layout bootloader-configuration-keyboard-layout
diff --git a/gnu/bootloader/uki.scm b/gnu/bootloader/uki.scm
new file mode 100644
index 0000000000..4871dbe037
--- /dev/null
+++ b/gnu/bootloader/uki.scm
@@ -0,0 +1,96 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2024 Lilah Tascheter <lilah <at> lunabee.space>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu bootloader uki)
+ #:use-module (gnu bootloader)
+ #:use-module (gnu packages bootloaders)
+ #:use-module (gnu packages efi)
+ #:use-module (gnu packages linux)
+ #:use-module (gnu system boot)
+ #:use-module (guix gexp)
+ #:use-module (guix diagnostics)
+ #:use-module (guix i18n)
+ #:use-module (guix records)
+ #:export (uki-efi-bootloader))
+
+;; TODO: support 32bit/mixed-mode UEFI.
+;; https://github.com/systemd/systemd/issues/17056 may be relevant
+(define bootcfg->menu-entry->builder
+ (match-record-lambda <bootloader-configuration> (32bit? theme keypair)
+ (match-record-lambda <menu-entry>
+ (label linux linux-arguments initrd chain-loader)
+ ;; support chainloader in order to allow arbitrary signed EFI binaries
+ (cond
+ ((and chain-loader keypair)
+ #~(lambda (dest)
+ (invoke/quiet #+(sbsigntools "/bin/sbsign")
+ "--cert" #$(car keypair) "--key" #$(cdr keypair)
+ "--output" dest #$chain-loader)
+ (invoke/quiet #+(sbsigntools "/bin/sbverify")
+ "--cert" #$(car keypair) dest)))
+ (chain-loader #~(lambda (dest) (copy-file #$chain-loader dest)))
+ (linux
+ (let* ((arch (efi-arch #:32? 32bit?))
+ (stub (file-append systemd-stub
+ "/libexec/linux" arch ".efi.stub")))
+ #~(lambda (dest)
+ (invoke/quiet #+(file-append ukify "/bin/ukify")
+ "build" "--output" dest
+ "--linux" #$linux "--initrd" #$initrd
+ "--cmdline" (string-join (list #$@linux-arguments))
+ "--os-release" #$label "--stub" #$stub "--efi-arch" #$arch
+ #$@(if theme #~("--splash" #$theme) '())
+ #$@(if keypair #~("--secureboot-certificate" #$(car keypair)
+ "--secureboot-private-key" #$(cdr keypair))
+ '())))))
+ (else (leave (G_ "uki-efi-bootloader doesn't support multiboot")))))))
+
+;; we cannot use guix's build system to make UKI images for two reasons:
+;; 1. signing is necessarily non-reproducable, especially since keys should not
+;; be in the store, or else risk being publically accessible.
+;; 2. menu-entries may reference files which do not exist in the store.
+(define* (install-uki #:key bootloader-config
+ current-boot-alternative
+ old-boot-alternatives
+ #:allow-other-keys)
+ (define* (menu-entry->plan entry num #:optional (prefix "menu-entry"))
+ #~(cons* #$((bootcfg->menu-entry->builder bootloader-config) entry)
+ #$(string-append prefix "-" (number->string num) ".efi")
+ #$(menu-entry-label entry)))
+
+ (define (boot-alternative->plan alt)
+ (menu-entry->plan (boot-alternative->menu-entry alt)
+ (boot-alternative-generation alt)
+ "generation"))
+
+ (install-efi bootloader-config
+ (let ((entries (bootloader-configuration-menu-entries bootloader-config)))
+ #~(list #$(boot-alternative->plan current-boot-alternative)
+ #$@(map menu-entry->plan entries (iota (length entries)))
+ #$@(map boot-alternative->plan old-boot-alternatives)))))
+
+
+
+(define uki-efi-bootloader
+ (bootloader
+ (name 'uki-efi)
+ (default-targets (list (bootloader-target
+ (type 'vendir)
+ (offset 'esp)
+ (path "EFI/Guix"))))
+ (installer install-uki)))
diff --git a/gnu/local.mk b/gnu/local.mk
index 8375e13709..32ed753ee2 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -93,6 +93,7 @@ GNU_SYSTEM_MODULES = \
%D%/bootloader/extlinux.scm \
%D%/bootloader/u-boot.scm \
%D%/bootloader/depthcharge.scm \
+ %D%/bootloader/uki.scm \
%D%/ci.scm \
%D%/compression.scm \
%D%/home.scm \
--
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1994-97 Ian Jackson.