# ktcpvs: Kernel TCP Virtaul Server Module

NAME	= ktcpvs
VERSION	= 0.1.0


# uncomment the following line for DEBUG
DEBUGFLAGS	= -g -DCONFIG_TCP_VS_DEBUG

# need to specify the path of kernel source
KERNELSOURCE	= /usr/src/linux

KERNELRELEASE	= $(shell echo -e "\#include <linux/version.h>\nUTS_RELEASE" \
		    > conftest.c &&					     \
		    gcc -E -I$(KERNELSOURCE)/include conftest.c | tail -1    \
		    | cut -d '"' -f 2 && rm -f conftest.c)

KERNELSYMS	= /boot/System.map-$(KERNELRELEASE)

# As per the Linux Kernel's Makefile:
# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
# relocations required by build roots.  This is not defined in the
# makefile but the arguement can be passed to make if needed.

MODLIB		= $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)/kernel/net/ktcpvs/

# If System.map exists, run depmod.  This deliberately does not have a
# dependency on System.map since that would run the dependency tree on
# vmlinux.  This depmod is only for convenience to give the initial
# boot a modules.dep even before / is mounted read-write.  However the
# boot script depmod is the master version.
ifeq "$(strip $(INSTALL_MOD_PATH))" ""
depmod_opts     :=
else
depmod_opts     := -b $(INSTALL_MOD_PATH) -r
endif

CC		= gcc
CFLAGS		= -D__KERNEL__ -DMODULE  -DEXPORT_SYMTAB -DMODVERSIONS	\
		$(SMPFLAGS) $(DEBUGFLAGS) -O2 -Wall			\
		-Wstrict-prototypes -I$(KERNELSOURCE)/include		\
		-include $(KERNELSOURCE)/include/linux/modversions.h

LIBS		= regex/librxspencer.a
TARGETS		= ktcpvs.o ktcpvs_wlc.o ktcpvs_http.o ktcpvs_phttp.o ktcpvs_chttp.o

all:		$(TARGETS)
		make -C userspace

ktcpvs.o:	tcp_vs_ctl.o tcp_vs_sched.o tcp_vs_srvconn.o tcp_vs.o\
		misc.o redirect.o tcp_vs_timer.o tcp_vs_logger.o $(LIBS)
		$(LD) -r $^ -o $@

ktcpvs_wlc.o:	tcp_vs_wlc.o
		$(LD) -r $^ -o $@

ktcpvs_http.o:	tcp_vs_http.o $(LIBS)
		$(LD) -r $^ -o $@

ktcpvs_phttp.o:	tcp_vs_phttp.o tcp_vs_http_parser.o tcp_vs_http_trans.o $(LIBS)
		$(LD) -r $^ -o $@

ktcpvs_chttp.o:	tcp_vs_chttp.o tcp_vs_http_parser.o tcp_vs_http_trans.o avl.o $(LIBS)
		$(LD) -r $^ -o $@

tcp_vs_http.o:	tcp_vs_http.c tcp_vs.h $(LIBS)

tcp_vs_phttp.o:	tcp_vs_phttp.c tcp_vs.h $(LIBS)

tcp_vs_chttp.o: tcp_vs_chttp.c tcp_vs.h $(LIBS)

tcp_vs_logger.o: tcp_vs_logger.c tcp_vs.h

tcp_vs_ctl.o:	tcp_vs_ctl.c tcp_vs.h

tcp_vs_http_parser.o: tcp_vs_http_parser.c tcp_vs.h

tcp_vs_http_trans.o: tcp_vs_http_trans.c tcp_vs.h

tcp_vs_timer.o: tcp_vs_timer.c tcp_vs.h

tcp_vs_sched.o:	tcp_vs_sched.c tcp_vs.h

tcp_vs_srvconn.o: tcp_vs_srvconn.c tcp_vs.h

tcp_vs.o:	tcp_vs.c tcp_vs.h

misc.o:		misc.c tcp_vs.h

redirect.o:	redirect.c tcp_vs.h

avl.o:		avl.c avl.h

tcp_vs.h:	$(LIBS)

$(LIBS):
		(cd regex && ./configure && make)

install:	ktcpvs.o
		-rmmod ktcpvs
		insmod ktcpvs.o
		lsmod

modules_install: $(TARGETS)
		if [ ! -d "$(MODLIB)" ]; then mkdir -p "$(MODLIB)"; fi
		install -m 600 -c $(TARGETS) "$(MODLIB)"
		depmod -ae -F $(KERNELSYMS) $(depmod_opts) $(KERNELRELEASE)

modules_uninstall:
		(cd "$(MODLIB)"; rm -f $(TARGETS))
		rmdir "$(MODLIB)"

clean:
		rm -f *.o *~ *.bak *.orig *.rej $(NAME)-$(VERSION).tar.gz
		make -C userspace clean

distclean:	clean
		rm -f TAGS tags
		-make -C regex distclean

dist:		distclean
		(cd .. ; tar czvf $(NAME)-$(VERSION).tar.gz --exclude CVS ktcpvs)
		mv ../$(NAME)-$(VERSION).tar.gz .

#
# Coding style (Kernighan & Ritchie) plus -i8 and --procnames-start-lines
#
#indent:
#		find . -name "*.[ch]" | xargs indent -kr -i8 -psl