###############################################################################
# This file is part of the IPCop Firewall.                                    #
#                                                                             #
# IPCop is free software; you can redistribute it and/or modify               #
# it under the terms of the GNU General Public License as published by        #
# the Free Software Foundation; either version 2 of the License, or           #
# (at your option) any later version.                                         #
#                                                                             #
# IPCop is distributed in the hope that it will be useful,                    #
# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
# GNU General Public License for more details.                                #
#                                                                             #
# You should have received a copy of the GNU General Public License           #
# along with IPCop; if not, write to the Free Software                        #
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA    #
#                                                                             #
# Makefiles are based on LFSMake, which is                                    #
# Copyright (C) 2002 Rod Roard <rod@sunsetsystems.com>                        #
#                                                                             #
# Modifications by:                                                           #
# ??-12-2003 Mark Wormgoor < mark@wormgoor.com>                               #
#          - Modified Makefile for IPCop build                                #
#                                                                             #
# $Id: linux,v 1.42.2.63 2006/01/30 12:51:21 franck78 Exp $
#                                                                             #
###############################################################################

###############################################################################
# Definitions
###############################################################################

include Config

VER        = 2.4.31

THISAPP    = linux-$(VER)
DL_FILE    = $(THISAPP).tar.gz
DL_FROM    = $(URL_KERNEL)/linux/kernel/v2.4
DIR_APP    = $(DIR_SRC)/$(THISAPP)
CFLAGS     =
CXXFLAGS   =

# Normal build or /tools build.
#
ifeq "$(ROOT)" ""
ifeq "$(LFS_PASS)" "ipcop"
ifeq "$(SMP)" ""
  TARGET = $(DIR_INFO)/$(THISAPP)-ipcop
endif
ifeq "$(SMP)" "1"
  TARGET = $(DIR_INFO)/$(THISAPP)-ipcop-smp
endif
ifeq "$(SMP)" "installer"
  TARGET = $(DIR_INFO)/$(THISAPP)-ipcop-installer
endif
else
  TARGET = $(DIR_INFO)/$(THISAPP)
endif
else
  TARGET = $(DIR_INFO)/$(THISAPP)-tools
endif

# make a kernel/iptables diff in build/usr/src to control patch system when DIFFCONTROL = yes
DIFFCONTROL = yes
###############################################################################
# Top-level Rules
###############################################################################
objects =$(DL_FILE) \
	openswan-1.0.10.tar.gz \
	iptables-1.3.4.tar.bz2 \
	patch-o-matic-ng-20050918.tar.bz2 \
	patch-o-matic-ng-20051229.tar.bz2

$(DL_FILE)				= $(DL_FROM)/$(DL_FILE)
openswan-1.0.10.tar.gz			= http://www.openswan.org/download/openswan-1.0.10.tar.gz
iptables-1.3.4.tar.bz2			= http://www.netfilter.org/projects/iptables/files/iptables-1.3.4.tar.bz2
patch-o-matic-ng-20050918.tar.bz2	= http://ftp.netfilter.org/pub/patch-o-matic-ng/snapshot/patch-o-matic-ng-20050918.tar.bz2
patch-o-matic-ng-20051229.tar.bz2	= http://ftp.netfilter.org/pub/patch-o-matic-ng/snapshot/patch-o-matic-ng-20051229.tar.bz2

$(DL_FILE)_MD5				= ea3f99fc82617886059d58d0644dab26
openswan-1.0.10.tar.gz_MD5		= 3767814e3c080d146a8c7233dc31e0a9
iptables-1.3.4.tar.bz2_MD5		= fdff8abe890807968226b0c374335305
patch-o-matic-ng-20050918.tar.bz2_MD5	= 5af06b5d1430a8ce6f2c6d8ead2f8365
patch-o-matic-ng-20051229.tar.bz2_MD5	= f68169268dbfc30acfeab159be279752

install : $(TARGET)

check : $(patsubst %,$(DIR_CHK)/%,$(objects))

download :$(patsubst %,$(DIR_DL)/%,$(objects))

md5 : $(subst %,%_MD5,$(objects))

###############################################################################
# Downloading, checking, md5sum
###############################################################################

$(patsubst %,$(DIR_CHK)/%,$(objects)) :
	@$(CHECK)

$(patsubst %,$(DIR_DL)/%,$(objects)) :
	@$(LOAD)

$(subst %,%_MD5,$(objects)) :
	@$(MD5)

###############################################################################
# Installation Details
###############################################################################

$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
	@$(PREBUILD)
	@rm -rf $(DIR_APP) $(DIR_SRC)/linux && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
	cd $(DIR_SRC) && ln -sf linux-$(VER) linux
	cd $(DIR_APP) && sed -i -e 's/-Werror//' drivers/scsi/aic7xxx/Makefile
	# fix 2.4.31 invalid assembler code. Patch is included in 2.4.32 kernel source
	cd $(DIR_SRC) && patch -p0  < $(DIR_SRC)/src/patches/linux-2.4-seg-4.patch

	# Openswan
	cd $(DIR_SRC) && rm -rf openswan-*
	cd $(DIR_SRC) && tar xfz $(DIR_DL)/openswan-1.0.10.tar.gz
	cd $(DIR_SRC)/openswan-1.0.10 && patch -Np1 < $(DIR_SRC)/src/patches/openswan-1.0.1-plutoctl.patch
	cd $(DIR_SRC)/openswan-1.0.10 && patch -Np1 < $(DIR_SRC)/src/patches/openswan-1.0.6-numif.patch
	cd $(DIR_SRC)/openswan-1.0.10 && sed -i 's+^KERNELSRC.*$$+KERNELSRC=$(ROOT)/usr/src/linux-$(VER)+' Makefile.inc
	cd $(DIR_SRC)/openswan-1.0.10 && sed -i -e 's/local\/sbin/local\/sbin:\/tools\/bin/' utils/patcher
	cd $(DIR_SRC)/openswan-1.0.10 && make insert

	# Iptables
	cd $(DIR_SRC) && rm -rf iptables-* $(DIR_SRC)/iptables
	cd $(DIR_SRC) && tar xfj $(DIR_DL)/iptables-1.3.4.tar.bz2
	cd $(DIR_SRC) && ln -sf iptables-1.3.4 iptables
	
ifeq "$(DIFFCONTROL)" "yes"
	# optional control of patching system
	cd $(DIR_APP) && make distclean 	# After patching, distclean remove .c~ .h~ but add .config.default
	cd $(DIR_SRC) && rm -rf linux-$(VER)-origin iptables-1.3.4-origin
	cd $(DIR_SRC) && cp -rf linux-$(VER) linux-$(VER)-origin
	cd $(DIR_SRC) && cp -rf iptables-1.3.4 iptables-1.3.4-origin
endif
	# Used to revert to old 'string' implementation as it is the only one know by pom for kernel 2.4
	cd $(DIR_SRC)/iptables-1.3.4 && patch -Np1 -R < $(DIR_SRC)/src/patches/iptables-1.3.4-old-string.patch

	# Patch-o-matic
	cd $(DIR_SRC) && rm -rf patch-o-matic*

	# Install extensions no more available on later pom snapshots,
	# 20050918 is the last with old extensions
	cd $(DIR_SRC) && tar xfj $(DIR_DL)/patch-o-matic-ng-20050918.tar.bz2
	cd $(DIR_SRC)/patch-o-matic-ng-20050918/patchlets && \
		cp -f $(DIR_SRC)/src/patches/patch-o-matic-ng-20040621_nf-log_2.4.29.patch nf-log/linux-2.4.patch

	cd $(DIR_SRC)/patch-o-matic-ng-20050918 && ./runme --batch \
						--kernel-path=$(ROOT)/usr/src/linux/ \
						--iptables-path=$(ROOT)/usr/src/iptables/ \
			IPV4OPTSSTRIP NETLINK NETMAP REJECT SAME TARPIT TTL connlimit cuseeme-nat dstlimit \
			fuzzy h323-conntrack-nat iprange mms-conntrack-nat mport nf-log nth pool \
			pptp-conntrack-nat psd quake3-conntrack-nat quota random raw realm rtsp-conntrack \
			set string time u32

	# More recent pom-ng snapshot with updates for
	# ipv4options, osf
	cd $(DIR_SRC) && rm -rf patch-o-matic*
	cd $(DIR_SRC) && tar xfj $(DIR_DL)/patch-o-matic-ng-20051229.tar.bz2

	cd $(DIR_SRC)/patch-o-matic-ng-20051229 && ./runme --batch \
						--kernel-path=$(ROOT)/usr/src/linux/ \
						--iptables-path=$(ROOT)/usr/src/iptables/ \
						ipv4options osf

	# This patch changes /proc/net/ip_conntrack to mode 0440
	# and messes up the connections.cgi page. So remove it for now.
	# As of 2.4.27 it's in as standard, use the patch to reverse the change.
	cd $(DIR_APP) && patch -Np1 -R < $(DIR_SRC)/src/patches/pom-ng_proc-net-conntrack-permissions.patch


ifeq "$(DIFFCONTROL)" "yes"
	# optional control of patching system
	cd $(DIR_APP) && make distclean				# remove .c~ .h~ due to patches
	cd $(DIR_SRC)/iptables-1.3.4 && make distclean
	# ignore error on difference as we patch for that
	-cd $(DIR_SRC) && diff -Nur linux-$(VER)-origin linux-$(VER) > pom-ng.diff
	-cd $(DIR_SRC) && diff -Nur iptables-1.3.4-origin iptables-1.3.4 >> pom-ng.diff
	cd $(DIR_SRC) && rm -rf linux-$(VER)-origin iptables-1.3.4-origin
endif

ifeq "$(SMP)" ""
	# Only do this once on the non-SMP pass
	cd $(DIR_SRC) && tar czf $(DIR_DL)/iptables-fixed.tar.gz iptables-1.3.4
endif

	# Olitec isdn gazel patch
	cd $(DIR_APP) && patch -Np0 < $(DIR_SRC)/src/patches/linux-2.4.23-olitec-isdn.patch

	# Fix /proc/stat output
	cd $(DIR_APP) && patch -Np2 < $(DIR_SRC)/src/patches/linux-2.4.26-proc-stat.patch

	# Fix libata-core.c
	# cd $(DIR_APP) && patch -Np0 < $(DIR_SRC)/src/patches/linux-2.4.26-scsi.patch

	# frandom patch
	cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.4.27-frandom-2.patch

	# Propolice
	cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.4.27-ssp-1.patch

	# Support ppp-2.4.3 multilink behavior (terminate when no channel is connected)
	# need updated libpcap older than 0.8.3
	# cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/ppp_generic-ppp-2.4.3_multilink.patch

	# R8169 clone D-link GSE-528T
	cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.4.29_r8169clone.patch

	# Cleanup kernel source
	cd $(DIR_APP) && make mrproper
ifeq "$(ROOT)" ""
ifeq "$(LFS_PASS)" "ipcop"
ifeq "$(SMP)" ""
	cp $(DIR_SRC)/config/kernel/kernel.config.$(MACHINE) $(DIR_APP)/.config
endif
ifeq "$(SMP)" "1"
	cp $(DIR_SRC)/config/kernel/kernel.config.$(MACHINE).smp $(DIR_APP)/.config
endif
ifeq "$(SMP)" "installer"
	cp $(DIR_SRC)/config/kernel/kernel.config.$(MACHINE).installer $(DIR_APP)/.config
	cd $(DIR_APP) && sed -i -e 's/-O2/-Os/g' Makefile
endif

	cd $(DIR_APP) && make CC="$(KGCC)" oldconfig
	cd $(DIR_APP) && make CC="$(KGCC)" dep
	cd $(DIR_APP) && make CC="$(KGCC)" clean
	if [ "$(MACHINE)" = "i386" -a "$(SMP)" = "" ]; then \
		cd $(DIR_APP) && make -j 3 CC="$(KGCC)" bzImage; \
		cd $(DIR_APP) && cp arch/$(MACHINE)/boot/bzImage /boot/vmlinuz-$(VER); \
		cd $(DIR_APP) && cp System.map /boot/System.map-$(VER); \
		ln -sf vmlinuz-$(VER) /boot/vmlinuz; \
		ln -sf System.map-$(VER) /boot/System.map; \
		cd $(DIR_APP) && make CC="$(KGCC)" modules; \
		cd $(DIR_APP) && make CC="$(KGCC)" modules_install; \
	elif [ "$(MACHINE)" = "i386" -a "$(SMP)" = "1" ]; then \
		cd $(DIR_APP) && sed -i -e 's/EXTRAVERSION\ =/EXTRAVERSION\ =\ -smp/' Makefile; \
		cd $(DIR_APP) && make -j 3 CC="$(KGCC)" bzImage; \
		cd $(DIR_APP) && cp arch/$(MACHINE)/boot/bzImage /boot/vmlinuz-$(VER)-smp; \
		cd $(DIR_APP) && cp System.map /boot/System.map-$(VER)-smp; \
		ln -sf vmlinuz-$(VER)-smp /boot/vmlinuz-smp; \
		cd $(DIR_APP) && make CC="$(KGCC)" modules; \
		cd $(DIR_APP) && make CC="$(KGCC)" modules_install; \
	elif [ "$(MACHINE)" = "i386" -a "$(SMP)" = "installer" ]; then \
		cd $(DIR_APP) && make -j 3 CC="$(KGCC)" bzImage; \
		cd $(DIR_APP) && cp arch/$(MACHINE)/boot/bzImage /boot/vmlinuz-installer; \
	elif [ "$(MACHINE)" = "alpha" ]; then \
		cd $(DIR_APP) && make -j 3 CC="$(KGCC)" vmlinux; \
		cd $(DIR_APP) && gzip -9c vmlinux > /boot/vmlinuz-$(VER); \
		cd $(DIR_APP) && cp System.map /boot/System.map-$(VER); \
		ln -sf vmlinuz-$(VER) /boot/vmlinuz; \
		ln -sf System.map-$(VER) /boot/System.map; \
		cd $(DIR_APP) && make CC="$(KGCC)" modules; \
		cd $(DIR_APP) && make CC="$(KGCC)" modules_install; \
	fi
	# remove symlinked pcmcia directory
ifeq "$(SMP)" ""
	rm -rf /lib/modules/$(VER)/pcmcia
	find /lib/modules/$(VER)/ -name '*.o' -a -type f | xargs gzip -f9

	# Move these SCSI drivers into same directory for probescsi.sh
	mv -f  /lib/modules/$(VER)/kernel/drivers/scsi/aic7xxx/*     /lib/modules/$(VER)/kernel/drivers/scsi
	rm -rf /lib/modules/$(VER)/kernel/drivers/scsi/aic7xxx
	mv -f  /lib/modules/$(VER)/kernel/drivers/scsi/aacraid/*     /lib/modules/$(VER)/kernel/drivers/scsi
	rm -rf /lib/modules/$(VER)/kernel/drivers/scsi/aacraid
	mv -f  /lib/modules/$(VER)/kernel/drivers/scsi/sym53c8xx_2/* /lib/modules/$(VER)/kernel/drivers/scsi
	rm -rf /lib/modules/$(VER)/kernel/drivers/scsi/sym53c8xx_2
endif
ifeq "$(SMP)" "1"
	rm -rf /lib/modules/$(VER)-smp/pcmcia
	find /lib/modules/$(VER)-smp/ -name '*.o' -a -type f | xargs gzip -f9

	# Move these SCSI drivers into same directory for probescsi.sh
	mv -f  /lib/modules/$(VER)-smp/kernel/drivers/scsi/aic7xxx/*     /lib/modules/$(VER)-smp/kernel/drivers/scsi
	rm -rf /lib/modules/$(VER)-smp/kernel/drivers/scsi/aic7xxx
	mv -f  /lib/modules/$(VER)-smp/kernel/drivers/scsi/aacraid/*     /lib/modules/$(VER)-smp/kernel/drivers/scsi
	rm -rf /lib/modules/$(VER)-smp/kernel/drivers/scsi/aacraid
	mv -f  /lib/modules/$(VER)-smp/kernel/drivers/scsi/sym53c8xx_2/* /lib/modules/$(VER)-smp/kernel/drivers/scsi
	rm -rf /lib/modules/$(VER)-smp/kernel/drivers/scsi/sym53c8xx_2
endif

ifeq "$(SMP)" ""
	# Only do this once on the non-SMP pass
	cd $(DIR_APP) && make mandocs
	-mkdir -p /usr/share/man/man9/
	cd $(DIR_APP) && cp -af Documentation/man/* /usr/share/man/man9/
endif
else
	cd $(DIR_APP) && make include/linux/version.h
	cd $(DIR_APP) && make symlinks
	cd $(DIR_APP) && cp -HRf include/asm /usr/include
	cd $(DIR_APP) && cp -Rf include/asm-generic /usr/include
	cd $(DIR_APP) && cp -Rf include/linux /usr/include
	touch /usr/include/linux/autoconf.h
endif
else
	cd $(DIR_APP) && make include/linux/version.h
	cd $(DIR_APP) && make symlinks
	-mkdir -p /tools/include/asm
	cd $(DIR_APP) && cp -f include/asm/* /tools/include/asm
	cd $(DIR_APP) && cp -Rf include/asm-generic /tools/include
	cd $(DIR_APP) && cp -Rf include/linux /tools/include
	cd $(DIR_APP) && touch /tools/include/linux/autoconf.h
endif
	@rm -rf $(DIR_SRC)/patch-o-matic* $(DIR_SRC)/iptables*
	@$(POSTBUILD)