dracut/0144-90crypt-Fixed-crypttab_contains-to-also-work-with-de.patch

From 7f4dea242398cc369ff3fecd599faa00d81a522c Mon Sep 17 00:00:00 2001
From: Julian Wolf <juwolf@suse.de>
Date: Tue, 19 Aug 2014 16:23:59 +0200
Subject: 90crypt: Fixed crypttab_contains() to also work with device path in
 /etc/crypttab

blkid is not available when this function is called, so block_uuid.map is put into
the initrd, mapping block devices from /etc/crypttab to UUIDs.

This fixes a bug where udev rules were created by mistake as crypttab_contains()
returned false for devices specified by path in /etc/crypttab which resulted in
error messages during boot.

Signed-off-by: Julian Wolf <juwolf@suse.de>
---
 modules.d/90crypt/crypt-lib.sh    | 9 +++++++++
 modules.d/90crypt/module-setup.sh | 4 ++++
 2 files changed, 13 insertions(+)

Index: dracut-042/modules.d/90crypt/crypt-lib.sh
===================================================================
--- dracut-042.orig/modules.d/90crypt/crypt-lib.sh	2015-06-11 17:39:47.000000000 +0200
+++ dracut-042/modules.d/90crypt/crypt-lib.sh	2015-06-24 18:02:28.878483104 +0200
@@ -5,11 +5,20 @@ command -v getarg >/dev/null || . /lib/d
 # check if the crypttab contains an entry for a LUKS UUID
 crypttab_contains() {
     local luks="$1"
+    local _uuid _line
     local l d rest
     if [ -f /etc/crypttab ]; then
         while read l d rest || [ -n "$l" ]; do
             strstr "${l##luks-}" "${luks##luks-}" && return 0
             strstr "$d" "${luks##luks-}" && return 0
+            if [ -e /usr/lib/dracut/modules.d/90crypt/block_uuid.map ]; then
+                # search for line starting with $d
+                _line=$(sed -n "\,^$d .*$,{p}" /usr/lib/dracut/modules.d/90crypt/block_uuid.map)
+                [ -z "$_line" ] && continue
+                # get second column with uuid
+                _uuid="$(echo $_line | sed 's,^.* \(.*$\),\1,')"
+	        strstr "$_uuid" "${luks##luks-}" && return 0
+            fi
         done < /etc/crypttab
     fi
     return 1
Index: dracut-042/modules.d/90crypt/module-setup.sh
===================================================================
--- dracut-042.orig/modules.d/90crypt/module-setup.sh	2015-06-11 17:39:47.000000000 +0200
+++ dracut-042/modules.d/90crypt/module-setup.sh	2015-06-24 18:02:28.882483333 +0200
@@ -63,6 +63,8 @@ install() {
         inst_hook cleanup 30 "$moddir/crypt-cleanup.sh"
     fi
 
+    # Have to use exit here, return value gets ignored in dracut.sh...
+    uuid_map_file=$(mktemp /tmp/dracut.XXXXXXXXXX) || exit 1
     if [[ $hostonly ]] && [[ -f /etc/crypttab ]]; then
         # filter /etc/crypttab for the devices we need
         while read _mapper _dev _rest || [ -n "$_mapper" ]; do
@@ -72,6 +73,8 @@ install() {
             [[ $_dev == UUID=* ]] && \
                 _dev="/dev/disk/by-uuid/${_dev#UUID=}"
 
+            echo "$_dev $(blkid $_dev -s UUID -o value)" >> $uuid_map_file
+
             for _hdev in "${!host_fs_types[@]}"; do
                 [[ ${host_fs_types[$_hdev]} == "crypto_LUKS" ]] || continue
                 if [[ $_hdev -ef $_dev ]] || [[ /dev/block/$_hdev -ef $_dev ]]; then
@@ -84,6 +87,8 @@ install() {
     fi
 
     inst_simple "$moddir/crypt-lib.sh" "/lib/dracut-crypt-lib.sh"
+    inst_simple $uuid_map_file "/usr/lib/dracut/modules.d/90crypt/block_uuid.map"
+    rm -f $uuid_map_file
 
     inst_multiple -o \
         $systemdutildir/system-generators/systemd-cryptsetup-generator \