88 lines
2.5 KiB
Diff
88 lines
2.5 KiB
Diff
From 2d3130c289b293269dcf558a26674f83f77729a6 Mon Sep 17 00:00:00 2001
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From: Michael Chang <mchang@suse.com>
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Date: Tue, 14 Jun 2022 17:10:01 +0800
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Subject: [PATCH 10/10] templates: import /etc/crypttab to grub.cfg
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The /etc/crypptab is used to setup location of encryption key files during
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boot, among other things. It is useful to make use the information by grub to
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determine where keys are being looked up.
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This script can be used to import relevant /etc/crypptab entry to grub.cfg.
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Signed-off-by: Michael Chang <mchang@suse.com>
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---
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Makefile.util.def | 7 ++++++
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util/grub.d/05_crypttab.in | 50 +++++++++++++++++++++++++++++++++++++++++++++
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2 files changed, 57 insertions(+)
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create mode 100644 util/grub.d/05_crypttab.in
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--- a/Makefile.util.def
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+++ b/Makefile.util.def
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@@ -483,6 +483,13 @@
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};
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script = {
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+ name = '05_crypttab';
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+ common = util/grub.d/05_crypttab.in;
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+ installdir = grubconf;
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+ condition = COND_HOST_LINUX;
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+};
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+
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+script = {
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name = '10_windows';
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common = util/grub.d/10_windows.in;
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installdir = grubconf;
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--- /dev/null
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+++ b/util/grub.d/05_crypttab.in
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@@ -0,0 +1,50 @@
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+#! /bin/sh
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+set -e
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+
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+# grub-mkconfig helper script.
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+# Copyright (C) 2022 Free Software Foundation, Inc.
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+#
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+# GRUB is free software: you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation, either version 3 of the License, or
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+# (at your option) any later version.
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+#
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+# GRUB is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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+
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+prefix="@prefix@"
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+exec_prefix="@exec_prefix@"
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+datarootdir="@datarootdir@"
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+
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+export TEXTDOMAIN=@PACKAGE@
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+export TEXTDOMAINDIR="@localedir@"
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+
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+. "$pkgdatadir/grub-mkconfig_lib"
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+
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+CRYPTTAB=/etc/crypttab
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+
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+if [ -r "$CRYPTTAB" ]; then
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+ awk '
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+ /^\s*#/ || $3 ~ /(^\/dev\/|^\/proc\/|^\/sys\/|:)/ { next }
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+ { key[0] = $3 }
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+ $3 ~ /(^$|none|-)/ {
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+ key[0] = "/etc/cryptsetup-keys.d/" $1 ".key"
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+ key[1] = "/run/cryptsetup-keys.d/" $1 ".key"
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+ }
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+ {
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+ for (d in key)
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+ if (system("test -f " key[d]) == 0)
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+ next
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+ }
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+ /UUID=/ {
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+ sub(/UUID=/,"",$2);
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+ gsub(/-/,"",$2);
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+ printf("crypttab_entry %s %s %s\n",$1,$2,$3)
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+ }
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+ ' "$CRYPTTAB"
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+fi
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