[patch] patch adding support for resuming from encrypted swap

genkernel-3.4.4.patch (text/plain), 2.78 KB, created by bmgomail on 2006-10-29 09:31:49 UTC

diff -ur genkernel-3.4.4.org/generic/initrd.scripts genkernel-3.4.4/generic/initrd.scripts
--- genkernel-3.4.4.org/generic/initrd.scripts	2006-10-26 00:53:04.000000000 +0200
+++ genkernel-3.4.4/generic/initrd.scripts	2006-10-29 18:25:47.000000000 +0100
@@ -549,35 +549,73 @@
 	fi
 }
 
-startLUKS() {
-	if [ -n "${LUKS_ROOT}" ]
-	then
-		if [ -e /sbin/cryptsetup ]
-		then
-			if cryptsetup isLuks ${LUKS_ROOT}
+# Open a LUKS device
+# $1 LUKS device
+# $2 LUKS name
+openLUKS() {
+	LUKS_DEVICE="$1"
+	LUKS_NAME="$2"
+	if [ -e /sbin/cryptsetup ]
+	then
+		while [ 1 ]
+		do
+			if [ "${LUKS_DEVICE}" = '' ]
 			then
-				good_msg "Opening LUKS device ${LUKS_ROOT}"
-
-				cryptsetup luksOpen ${LUKS_ROOT} root
-				if [ ! "$?" -eq '0' ]
-				then
-					bad_msg "Failed open LUKS device ${LUKS_ROOT}"
-				fi
-
-				if [ -n "${REAL_ROOT}" ]
+				# LUKS device could not be opened. Prompt user for device.
+				bad_msg "The LUKS ${LUKS_NAME} block device is not detected."
+				echo "   Please specify a ${LUKS_NAME} LUKS device to open, "q" to skip, or "shell" for a shell..."
+				echo -n "LUKS ${LUKS_NAME}() :: "
+				read LUKS_DEVICE
+				continue
+			elif [ "${LUKS_DEVICE}" = 'shell' ]
+			then
+				run_shell
+				
+				LUKS_DEVICE=''
+				continue
+			elif [ "${LUKS_DEVICE}" = 'q' ]
+			then
+				break
+			else
+				if cryptsetup isLuks ${LUKS_DEVICE}
 				then
-					# Rescan volumes
-					startVolumes
+					good_msg "Opening LUKS device ${LUKS_DEVICE}"
+					
+					cryptsetup luksOpen ${LUKS_DEVICE} ${LUKS_NAME}
+					if [ ! "$?" -eq '0' ]
+					then
+						bad_msg "Failed open LUKS device ${LUKS_DEVICE}"
+					else
+						break
+					fi
 				else
-					REAL_ROOT="/dev/mapper/root"
+					bad_msg "The LUKS device ${LUKS_DEVICE} does not contain a LUKS header"
 				fi
-			else
-				bad_msg "The LUKS device ${LUKS_ROOT} does not contain a LUKS hearder"
 			fi
+			LUKS_DEVICE=''
+		done
+	else
+		bad_msg "The initrd does not support LUKS"
+	fi
+}
+
+startLUKS() {
+	if [ -n "${LUKS_ROOT}" ]
+	then
+		openLUKS "${LUKS_ROOT}" "root" 
+		if [ -n "${REAL_ROOT}" ]
+		then
+			# Rescan volumes
+			startVolumes
 		else
-			bad_msg "The initrd does not support LUKS"
+			REAL_ROOT="/dev/mapper/root"
 		fi
 	fi
+	if [ -n "${LUKS_SWAP}" ]
+	then
+		openLUKS "${LUKS_SWAP}" "swap" 
+		break
+	fi
 }
 
 sdelay() {
diff -ur genkernel-3.4.4.org/generic/linuxrc genkernel-3.4.4/generic/linuxrc
--- genkernel-3.4.4.org/generic/linuxrc	2006-10-26 00:53:04.000000000 +0200
+++ genkernel-3.4.4/generic/linuxrc	2006-10-29 17:38:02.000000000 +0100
@@ -175,6 +175,9 @@
 		crypt_root\=*)
 			LUKS_ROOT=`parse_opt "${x}"`
 		;;
+		crypt_swap\=*)
+			LUKS_SWAP=`parse_opt "${x}"`
+		;;
 	esac
 done
 
@@ -226,7 +229,7 @@
 # Scan volumes
 startVolumes
 
-# Iinitialize LUKS root device
+# Initialize LUKS root device
 startLUKS
 
 # Set up unionfs