[patch] patched patch for LUKS support in genkernel.

genkernel.diff (text/plain), 3.33 KB, created by Clemens Fruhwirth on 2006-02-18 11:17:58 UTC

--- /i686/usr/share/genkernel/gen_initramfs.sh	2006-02-18 09:01:51.000000000 +0100
+++ /x86_64/usr/share/genkernel/gen_initramfs.sh	2006-02-18 19:55:18.040974750 +0100
@@ -317,6 +317,12 @@
 	done
 }
 
+# check for static linked file with objdump
+is_static() {
+	objdump -T $1 2>&1 | grep "not a dynamic object" > /dev/null
+	return $?
+}
+
 create_initramfs_modules() {
 	local group
 	local group_modules
@@ -368,6 +374,7 @@
 	fi
 	mkdir -p "${TEMP}/initramfs-aux-temp/etc"	
 	mkdir -p "${TEMP}/initramfs-aux-temp/sbin"	
+	mkdir -p "${TEMP}/initramfs-aux-temp/bin"
 	if [ -f "${CMD_LINUXRC}" ]
 	then
 		cp "${CMD_LINUXRC}" "${TEMP}/initramfs-aux-temp/init"
@@ -430,6 +437,14 @@
 	chmod +x "${TEMP}/initramfs-aux-temp/etc/initrd.scripts"
 	chmod +x "${TEMP}/initramfs-aux-temp/etc/initrd.defaults"
 	chmod +x "${TEMP}/initramfs-aux-temp/sbin/modprobe"
+
+	if [ "${LUKS}" = '1' ] 
+        then 
+            is_static /bin/cryptsetup || gen_die "LUKS support requires static cryptsetup-luks. USE=-dynamic emerge cryptsetup-luks"
+            rm -f ${TEMP}/initramfs-aux-temp/bin/cryptsetup
+            cp /bin/cryptsetup ${TEMP}/initramfs-aux-temp/bin/cryptsetup
+        fi
+
 	cd "${TEMP}/initramfs-aux-temp/"
 	find . -print | cpio --quiet -o -H newc | gzip -9 > ${CACHE_CPIO_DIR}/initramfs-aux.cpio.gz
 	rm -r "${TEMP}/initramfs-aux-temp/"	
--- /i686/usr/share/genkernel/gen_initrd.sh	2006-02-18 09:01:51.000000000 +0100
+++ /x86_64/usr/share/genkernel/gen_initrd.sh	2006-02-18 20:01:05.898714500 +0100
@@ -1,5 +1,11 @@
 #!/bin/bash
 
+# check for static linked file with objdump
+is_static() {
+	objdump -T $1 2>&1 | grep "not a dynamic object" > /dev/null
+	return $?
+}
+
 # create_initrd_loop(size)
 create_initrd_loop() {
 	local inodes
@@ -212,6 +218,14 @@
 		ln  ${TEMP}/initrd-temp/bin/busybox ${TEMP}/initrd-temp/bin/$i ||
 			gen_die "Busybox error: could not link ${i}!"
 	done
+
+	# LUKS
+	if [ "${LUKS}" = '1' ] 
+	then
+		is_static /bin/cryptsetup || gen_die "LUKS support requires static cryptsetup-luks. USE=-dynamic emerge cryptsetup-luks"
+		rm -f ${TEMP}/initramfs-aux-temp/bin/cryptsetup
+		cp /bin/cryptsetup ${TEMP}/initramfs-aux-temp/bin/cryptsetup
+	fi
 }
 
 print_list()
--- /i686/usr/share/genkernel/generic/linuxrc	2006-02-18 09:01:51.000000000 +0100
+++ /x86_64/usr/share/genkernel/generic/linuxrc	2006-02-18 20:04:10.002220250 +0100
@@ -385,6 +385,25 @@
 		elif [ -b "${REAL_ROOT}" ] || [ "${REAL_ROOT}" = "/dev/nfs" ]
 		then
 			got_good_root=1
+		elif [ `echo ${REAL_ROOT} | sed -e "s/\([^:]*\):.*/\1/"` = "luks" ]
+		then
+		    LUKSdev=`echo ${REAL_ROOT} | sed -e "s/luks:\(.*\)/\1/"`
+		    if [ -e /bin/cryptsetup ]
+                    then
+			if cryptsetup isLuks ${LUKSdev}
+			then
+			    echo "LUKS partition - opening $LUKSdev"
+			    cryptsetup luksOpen ${LUKSdev} root &&
+			    REAL_ROOT=/dev/mapper/root &&
+			    got_good_root=1
+			else
+			    echo "${LUKSDEV} is not a LUKS partition"
+			    REAL_ROOT=""
+			fi
+		    else
+			echo "This initrd does not support LUKS"
+			REAL_ROOT=""
+		    fi
 		else
 			bad_msg "Block device ${REAL_ROOT} is not a valid root device..."
 			REAL_ROOT=""
--- /tmp/genkernel.conf	2006-02-18 20:06:28.094850500 +0100
+++ /x86_64/etc/genkernel.conf	2006-02-17 08:33:48.000000000 +0100
@@ -33,6 +33,9 @@
 # Add new kernel to grub?
 # BOOTLOADER="grub"
 
+# Add LUKS support?
+LUKS="1"
+
 # Add UDEV support?
 UDEV="1"