iSCSI patch for genkernel

arch/alpha/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

arch/ia64/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

arch/mips/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

arch/parisc/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

arch/parisc64/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

arch/ppc/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

arch/ppc64/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

arch/sparc/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

arch/sparc64/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

arch/um/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

arch/x86/modules_load

@@ -17,6 +17,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

arch/x86_64/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

defaults/initrd.defaults

@@ -78,4 +78,4 @@ LOOPS='/livecd.loop /zisofs /livecd.squashfs /image.squashfs /livecd.gcloop'
 # Only sections that are in by default or those that
 # are not module groups need to be defined here...
 HWOPTS='keymap cache modules pata sata scsi usb firewire waitscan slowusb evms lvm dmraid mdadm fs net'
-MY_HWOPTS='modules pata sata scsi usb firewire waitscan dmraid mdadm fs net'
+MY_HWOPTS='modules pata sata scsi usb firewire waitscan dmraid mdadm fs net iscsi'

defaults/initrd.scripts

@@ -628,6 +628,17 @@ startVolumes() {
 	fi
 }
 
+startiscsi() {
+	
+	if [ -n "${ISCSI_I}" ] && [ -n "${ISCSI_T}" ] && [ -n "${ISCSI_A}" ]
+	then
+		good_msg "Activating ISCSI"
+		iscsistart -i "${ISCSI_I}" -t "${ISCSI_T}" -g 1 -a ${ISCSI_A}
+	fi
+
+}
+
+
 # Open a LUKS device
 # It is either the root or a swap, other devices are supported in the scripts provided with sys-fs/cryptsetup-luks
 # $1 - root/swap

defaults/linuxrc

@@ -149,6 +149,17 @@ do
 		nfsroot\=*)
 			NFSROOT=`parse_opt "${x}"`
 		;;
+		# ISCSI
+		iscsi_i\=*)
+			ISCSI_I=`parse_opt "${x}"`
+		;;
+		iscsi_t\=*)
+			ISCSI_T=`parse_opt "${x}"`
+		;;
+		iscsi_a\=*)
+			ISCSI_A=`parse_opt "${x}"`
+		;;
+		# Crypto
 		crypt_root\=*)
 			CRYPT_ROOT=`parse_opt "${x}"`
 		;;
@@ -263,6 +274,9 @@ setup_md_device
 # Scan volumes
 startVolumes
 
+# Start ISCSI
+startiscsi
+
 setup_keymap
 
 # Initialize LUKS root device except for livecd's

defaults/modules_load

@@ -16,6 +16,9 @@ MODULES_WAITSCAN="scsi_wait_scan"
 # Hardware (Network)
 MODULES_NET="e1000 tg3"
 
+# iSCSI support
+MODULES_ISCSI="scsi_transport_iscsi libiscsi iscsi_tcp"
+
 # Hardware (Pluggable)
 MODULES_FIREWIRE="ieee1394 ohci1394 sbp2"
 MODULES_PCMCIA="pcmcia pcmcia_core yenta_socket pd6729 i82092 i82365 tcic ds ide-cs firmware_class"

gen_cmdline.sh

@@ -84,6 +84,7 @@ longusage() {
   echo "	--mdadm			Copy /etc/mdadm.conf to initramfs"
   echo "	--dmraid		Include DMRAID support"
   echo "	--multipath		Include Multipath support"
+  echo "	--iscsi			Include ISCSI support"
   echo "	--slowusb		Enables extra pauses for slow USB CD boots"
   echo "	--bootloader=grub	Add new kernel to GRUB configuration"
   echo "	--linuxrc=<file>	Specifies a user created linuxrc"
@@ -289,6 +290,9 @@ parse_cmdline() {
 		--bootloader=*)
 			CMD_BOOTLOADER=`parse_opt "$*"`
 			print_info 2 "CMD_BOOTLOADER: ${CMD_BOOTLOADER}"
+		--iscsi)
+			CMD_ISCSI=1
+			print_info 2 "CMD_ISCSI: ${CMD_ISCSI}"
 			;;
 		--loglevel=*)
 			CMD_LOGLEVEL=`parse_opt "$*"`

gen_compile.sh

@@ -619,3 +619,45 @@ compile_unionfs_fuse() {
 		rm -rf "${UNIONFS_FUSE_DIR}" > /dev/null
 	fi
 }
+
+compile_iscsi() {
+	if [ ! -f "${ISCSI_BINCACHE}" ]
+	then
+		[ ! -f "${ISCSI_SRCTAR}" ] &&
+			gen_die "Could not find ISCSI source tarball: ${ISCSI_SRCTAR}. Please place it there, or place another version, changing /etc/genkernel.conf as necessary!"
+		cd "${TEMP}"
+		rm -rf "${ISCSI_DIR}"
+		tar -zxpf "${ISCSI_SRCTAR}"
+		[ ! -d "${ISCSI_DIR}" ] &&
+			gen_die "ISCSI directory ${ISCSI_DIR} invalid"
+				print_info 1 'ISCSI: >> Compiling...'
+		cd "${TEMP}/${ISCSI_DIR}/utils/fwparam_ibft"
+		MAKE=${UTILS_MAKE} compile_generic "" ""
+		cd "${TEMP}/${ISCSI_DIR}/usr"
+		MAKE=${UTILS_MAKE} compile_generic "" ""
+		cd "${TEMP}/${ISCSI_DIR}/kernel"
+
+		# Find out target kernel Version, make modules for that version
+		RELEASE=$(head -n 4 ${CMD_KERNEL_DIR}/Makefile | sed  -r -e 's/^VERSION = (.*)/\1./g' -e 's/PATCHLEVEL = (.*)/\1./g' -e 's/SUBLEVEL = (.*)/\1/g' -e 's/EXTRAVERSION = (.*)/\1/g' | tr -d '\n')
+		KERNELRELEASE=${RELEASE} MAKE=${UTILS_MAKE} compile_generic "" ""
+
+		# copy kernel modules to initramfs
+		mkdir -p "${TEMP}/initramfs-iscsi-temp/lib/modules/${RELEASE}/kernel/drivers/scsi/"
+		cp *.ko "${TEMP}/initramfs-iscsi-temp/lib/modules/${RELEASE}/kernel/drivers/scsi/"
+
+	        cd "${TEMP}/initramfs-iscsi-temp/"
+		print_info 1 'iscsistart: >> Copying to cache...'
+		[ -f "${TEMP}/${ISCSI_DIR}/usr/iscsistart" ] ||
+			gen_die 'iscsistart executable does not exist!'
+		strip "${TEMP}/${ISCSI_DIR}/usr/iscsistart" ||
+			gen_die 'Could not strip iscsistart binary!'
+		bzip2 "${TEMP}/${ISCSI_DIR}/usr/iscsistart" ||
+			gen_die 'bzip2 compression of iscsistart failed!'
+		mv "${TEMP}/${ISCSI_DIR}/usr/iscsistart.bz2" "${ISCSI_BINCACHE}" ||
+			gen_die 'Could not copy the iscsistart binary to the package directory, does the directory exist?'
+
+		cd "${TEMP}"
+		rm -rf "${ISCSI_DIR}" > /dev/null
+	fi
+}
+

gen_configkernel.sh

@@ -100,6 +100,15 @@ config_kernel() {
 		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_BLK_DEV_DM is.*/CONFIG_BLK_DEV_DM=m/g'
 	fi
 
+	# Make sure the iscsi modules are off if --iscsi
+	# CONFIG_SCSI_ISCSI_ATTRS
+	# CONFIG_ISCSI_TCP
+	if isTrue ${CMD_ISCSI}
+	then
+		sed -i ${KERNEL_DIR}/.config -e 's/^CONFIG_SCSI_ISCSI_ATTRS=\(.*\)/\# CONFIG_SCSI_ISCSI_ATTRS is not set/g'
+		sed -i ${KERNEL_DIR}/.config -e 's/^CONFIG_ISCSI_TCP=\(.*\)/\# CONFIG_ISCSI_TCP is not set/g'
+	fi
+
 	if isTrue ${SPLASH}
 	then
 		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_FB_SPLASH is.*/CONFIG_FB_SPLASH=y/g'

gen_determineargs.sh

@@ -102,6 +102,7 @@ determine_real_args() {
 	set_config_with_override 1 LVM                  CMD_LVM
 	set_config_with_override 1 EVMS                 CMD_EVMS
 	set_config_with_override 1 DMRAID               CMD_DMRAID
+	set_config_with_override 1 ISCSI                CMD_ISCSI
 	set_config_with_override 1 BUSYBOX              CMD_BUSYBOX              "yes"
 	set_config_with_override 1 UNIONFS				CMD_UNIONFS
 	set_config_with_override 1 NETBOOT				CMD_NETBOOT
@@ -127,6 +128,7 @@ determine_real_args() {
 	DEVICE_MAPPER_BINCACHE=`cache_replace "${DEVICE_MAPPER_BINCACHE}"`
 	LVM_BINCACHE=`cache_replace "${LVM_BINCACHE}"`
 	DMRAID_BINCACHE=`cache_replace "${DMRAID_BINCACHE}"`
+	ISCSI_BINCACHE=`cache_replace "${ISCSI_BINCACHE}"`
 	BLKID_BINCACHE=`cache_replace "${BLKID_BINCACHE}"`
 	FUSE_BINCACHE=`cache_replace "${FUSE_BINCACHE}"`
 	UNIONFS_FUSE_BINCACHE=`cache_replace "${UNIONFS_FUSE_BINCACHE}"`
@@ -137,6 +139,7 @@ determine_real_args() {
 	DEVICE_MAPPER_BINCACHE=`arch_replace "${DEVICE_MAPPER_BINCACHE}"`
 	LVM_BINCACHE=`arch_replace "${LVM_BINCACHE}"`
 	DMRAID_BINCACHE=`arch_replace "${DMRAID_BINCACHE}"`
+	ISCSI_BINCACHE=`arch_replace "${ISCSI_BINCACHE}"`
 	BLKID_BINCACHE=`arch_replace "${BLKID_BINCACHE}"`
 	FUSE_BINCACHE=`arch_replace "${FUSE_BINCACHE}"`
 	UNIONFS_FUSE_BINCACHE=`arch_replace "${UNIONFS_FUSE_BINCACHE}"`

gen_funcs.sh

@@ -516,7 +516,7 @@ set_config_with_override() {
 }
 
 check_distfiles() {
-	for i in $BUSYBOX_SRCTAR $DEVICE_MAPPER_SRCTAR $MULTIPATH_SRCTAR $LVM_SRCTAR $DMRAID_SRCTAR $E2FSPROGS_SRCTAR
+	for i in $BUSYBOX_SRCTAR $DEVICE_MAPPER_SRCTAR $MULTIPATH_SRCTAR $LVM_SRCTAR $DMRAID_SRCTAR $E2FSPROGS_SRCTAR $ISCSI_SRCTAR
 	do
 		if [ ! -f "${i}" ]
 		then

gen_initramfs.sh

@@ -192,6 +192,23 @@ append_dmraid(){
 	rm -r "${TEMP}/initramfs-dmraid-temp/"
 }
 
+append_iscsi(){
+	if [ -d "${TEMP}/initramfs-iscsi-temp" ]
+	then
+		rm -r "${TEMP}/initramfs-iscsi-temp/"
+	fi
+	print_info 1 'ISCSI: Adding support (compiling binaries)...'
+	compile_iscsi
+	cd ${TEMP}
+	mkdir -p "${TEMP}/initramfs-iscsi-temp/bin/"
+	/bin/bzip2 -dc "${ISCSI_BINCACHE}" > "${TEMP}/initramfs-iscsi-temp/bin/iscsistart" ||
+		gen_die "Could not extract iscsi binary cache!"
+	chmod a+x "${TEMP}/initramfs-iscsi-temp/bin/iscsistart"
+	cd "${TEMP}/initramfs-iscsi-temp/"
+	find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
+	rm -rf "${TEMP}/initramfs-iscsi-temp" > /dev/null
+}
+
 append_lvm(){
 	if [ -d "${TEMP}/initramfs-lvm-temp" ]
 	then
@@ -578,6 +595,7 @@ create_initramfs() {
 	append_data 'busybox' "${BUSYBOX}"
 	append_data 'lvm' "${LVM}"
 	append_data 'dmraid' "${DMRAID}"
+	append_data 'iscsi' "${ISCSI}"
 	append_data 'evms' "${EVMS}"
 	append_data 'mdadm' "${MDADM}"
 	append_data 'luks' "${LUKS}"

genkernel

@@ -364,6 +364,7 @@ then
 	[ "${EVMS}" -eq '1' ] && print_info 1 'add "doevms" for evms support'
 	[ "${DMRAID}" -eq '1' ] && print_info 1 'add "dodmraid" for dmraid support'
 	[ "${DMRAID}" -eq '1' ] && print_info 1 '	or "dodmraid=<additional options>"'
+	[ "${ISCSI}" -eq '1' ] && print_info 1 'add "iscsi_i=<initiator name> iscsi_t=<target name> iscsi_a=<target ip>" for iscsi support'
 fi
 
 [ "${BOOTRW}" != '' ] && mount -o remount,ro ${BOOTDIR}

genkernel.conf

@@ -160,6 +160,11 @@ DMRAID_DIR="dmraid/${DMRAID_VER}"
 DMRAID_SRCTAR="${DISTDIR}/dmraid-${DMRAID_VER}.tar.bz2"
 DMRAID_BINCACHE="%%CACHE%%/dmraid-${DMRAID_VER}-%%ARCH%%.tar.bz2"
 
+ISCSI_VER="VERSION_ISCSI"
+ISCSI_DIR="open-iscsi-${ISCSI_VER}"
+ISCSI_SRCTAR="${DISTDIR}/open-iscsi-${ISCSI_VER}.tar.gz"
+ISCSI_BINCACHE="%%CACHE%%/iscsi-${ISCSI_VER}-%%ARCH%%.bz2"
+
 E2FSPROGS_VER="VERSION_E2FSPROGS"
 E2FSPROGS_DIR="e2fsprogs-${E2FSPROGS_VER}"
 E2FSPROGS_SRCTAR="${DISTDIR}/e2fsprogs-${E2FSPROGS_VER}.tar.gz"