From fafec575427d5dbac8333f6605e34f0384b73991 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Sun, 19 Sep 2021 10:29:51 +0200
Subject: cryptfs.bin: check, that raid is "clean" before mounting

---
 cryptfs.bin.in | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/cryptfs.bin.in b/cryptfs.bin.in
index 8465c70..4057651 100644
--- a/cryptfs.bin.in
+++ b/cryptfs.bin.in
@@ -189,22 +189,32 @@ do_mount() {
   fi
   inner_fs=$(inner_fs_to_mountorder "$1")
 
+  mount_dev=$(mount_details dev "$1")
+
+  if md_dev=$(readlink -e "${mount_dev}" \
+  | grep -x '/dev/md[0-9]\+'); then
+    if ! grep -qxF 'clean' '/sys/block/'"${md_dev##*/}"'/md/array_state'; then
+      >&2 printf '%s is not clean - will not mount\n' "${md_dev}"
+      exit 1
+    fi
+  fi
+
   case "$(mount_details fs "$1")" in
     'ext'*)
-      if cryptsetup status $(mount_details dev "$1") \
+      if cryptsetup status "${mount_dev}" \
       | grep -q '^\s*mode:\s\+readonly$'; then
         e2fsck_option='-n'
       else
         e2fsck_option='-p'
       fi
-      e2fsck ${e2fsck_option} $(mount_details dev "$1")
+      e2fsck ${e2fsck_option} "${mount_dev}"
     ;;
     'fuse.sshfs'|'fuse.ftps')
       local max_wait
       local host
       max_wait=$(($(date +%s)+120))
       host=$(
-        mount_details dev "$1" | \
+        echo "${mount_dev}" | \
           sed 's>^\([^:@]*@\)\?\([^:@]\+\):\S*$>\2>'
       )
       host=$(extract_ssh_host "${host}")
-- 
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