DESTDIR =
bindir = /usr/sbin
etcdir = /etc/l2tpns
libdir = /usr/lib/l2tpns
man5dir = /usr/share/man/man5
man8dir = /usr/share/man/man8
statedir = /var/lib/l2tpns

DEFINES =
DEFINES += -DLIBDIR='"$(libdir)"'
DEFINES += -DETCDIR='"$(etcdir)"'
DEFINES += -DSTATEDIR='"$(statedir)"'

OPTIM =
OPTIM += -g
OPTIM += -O3
OPTIM += -funroll-loops
OPTIM += -fomit-frame-pointer
OPTIM += -finline-functions
#OPTIM += -fstrength-reduce

CC = gcc
LD = gcc
INCLUDES = -I.
CPPFLAGS = $(INCLUDES) $(DEFINES)
CFLAGS = -Wall -Wformat-security -Wno-format-zero-length $(OPTIM)
LDFLAGS =
LDLIBS =
INSTALL = install -c -D -o root -g root

l2tpns.LIBS = -lm -lcli -ldl

OBJS = arp.o cli.o cluster.o constants.o control.o icmp.o l2tpns.o \
    ll.o md5.o ppp.o radius.o tbf.o util.o

PROGRAMS = l2tpns nsctl
PLUGINS = garden.so throttlectl.so autothrottle.so snoopctl.so \
    autosnoop.so stripdomain.so setrxspeed.so

TESTS = generateload bounce 

DEFINES += -DSTATISTICS
DEFINES += -DSTAT_CALLS
DEFINES += -DRINGBUFFER

DEFINES += -DBGP
OBJS += bgp.o

all: programs plugins tests
programs: $(PROGRAMS)
plugins: $(PLUGINS)
tests: $(TESTS)

clean:
	rm -f *.o test/*.o $(PROGRAMS) $(PLUGINS) $(TESTS) Makefile.tmp Makefile.bak

depend:
	(sed -n 'p; /^## Dependencies: (autogenerated) ##/q' Makefile && \
	    gcc -MM $(CPPFLAGS) $(OBJS:.o=.c) && \
	    gcc -MM $(CPPFLAGS) $(PLUGINS:.so=.c) | sed 's/\.o/.so/') >Makefile.tmp
	mv Makefile Makefile.bak
	mv Makefile.tmp Makefile

l2tpns:	$(OBJS)
	$(LD) $(LDFLAGS) -o $@ $^ $(LDLIBS) $($@.LIBS)

nsctl:	nsctl.o control.o
	$(LD) $(LDFLAGS) -o $@ $^ $(LDLIBS) $($@.LIBS)

generateload:	test/generateload.o
	$(LD) $(LDFLAGS) -o $@ $^ $(LDLIBS) $($@.LIBS)

bounce:	test/bounce.o
	$(LD) $(LDFLAGS) -o $@ $^ $(LDLIBS) $($@.LIBS)

%.o: %.c
	$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<

%.so: %.c
	$(CC) -fPIC -shared $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -o $@ $<

# install config files only if a startup-config does not exist yet
# this does not interfere when building rpms or debs and makes
# fast upgrading via make install possible

install: all
	$(INSTALL) -m 0755 l2tpns $(DESTDIR)$(bindir)/l2tpns
	$(INSTALL) -m 0755 nsctl $(DESTDIR)$(bindir)/nsctl

	$(INSTALL) -m 0644 Docs/startup-config.5 $(DESTDIR)$(man5dir)/startup-config.5
	$(INSTALL) -m 0644 Docs/l2tpns.8 $(DESTDIR)$(man8dir)/l2tpns.8
	$(INSTALL) -m 0644 Docs/nsctl.8 $(DESTDIR)$(man8dir)/nsctl.8

	gzip --best $(DESTDIR)$(man5dir)/*.5 $(DESTDIR)$(man8dir)/*.8

	@if [ -f $(DESTDIR)$(etcdir)/startup-config ]; then \
		echo '***' Installing default config files in $(DESTDIR)$(etcdir) as .defaults; \
		suffix=.default; \
	else \
		echo '***' Installing default config files in $(DESTDIR)$(etcdir) - remember to adjust them; \
		suffix=; \
	fi; \

	$(INSTALL) -m 0600 etc/startup-config.default $(DESTDIR)$(etcdir)/startup-config$$suffix; \
	$(INSTALL) -m 0644 etc/ip_pool.default $(DESTDIR)$(etcdir)/ip_pool$$suffix; \
	$(INSTALL) -m 0600 etc/users.default $(DESTDIR)$(etcdir)/users$$suffix

	for plugin in $(PLUGINS); do \
		$(INSTALL) -m 0755 $$plugin $(DESTDIR)$(libdir)/$$plugin; \
	done

	if [ -z $(DESTDIR) ] && [ ! -e /dev/net/tun ]; then \
		mkdir /dev/net; \
		mknod /dev/net/tun c 10 200; \
	fi

.PHONY: all clean depend install

## Dependencies: (autogenerated) ##
arp.o: arp.c l2tpns.h
cli.o: cli.c l2tpns.h util.h cluster.h tbf.h ll.h bgp.h
cluster.o: cluster.c l2tpns.h cluster.h util.h tbf.h bgp.h
constants.o: constants.c constants.h
control.o: control.c l2tpns.h control.h
icmp.o: icmp.c l2tpns.h
l2tpns.o: l2tpns.c md5.h l2tpns.h cluster.h plugin.h ll.h constants.h \
  control.h util.h tbf.h bgp.h
ll.o: ll.c ll.h
md5.o: md5.c md5.h
ppp.o: ppp.c l2tpns.h constants.h plugin.h util.h tbf.h cluster.h
radius.o: radius.c md5.h constants.h l2tpns.h plugin.h util.h
tbf.o: tbf.c l2tpns.h util.h tbf.h
util.o: util.c l2tpns.h bgp.h
bgp.o: bgp.c l2tpns.h bgp.h util.h
garden.so: garden.c l2tpns.h plugin.h control.h
throttlectl.so: throttlectl.c l2tpns.h plugin.h control.h
autothrottle.so: autothrottle.c l2tpns.h plugin.h
snoopctl.so: snoopctl.c l2tpns.h plugin.h control.h
autosnoop.so: autosnoop.c l2tpns.h plugin.h
stripdomain.so: stripdomain.c l2tpns.h plugin.h
setrxspeed.so: setrxspeed.c l2tpns.h plugin.h