# $Id: Makefile.linux,v 1.95 2017/12/12 11:40:14 nanard Exp $
# MiniUPnP project
# (c) 2006-2020 Thomas Bernard
# http://miniupnp.free.fr/ or https://miniupnp.tuxfamily.org/
# Author : Thomas Bernard
# for use with GNU Make
#
# options can be passed to configure through CONFIG_OPTIONS :
# $ CONFIG_OPTIONS="--ipv6 --igd2" make
#
# To install use :
# $ DESTDIR=/dummyinstalldir make install
# or :
# $ INSTALLPREFIX=/usr/local make install
# or :
# $ make install
# (default INSTALLPREFIX is /usr)
#
# if your system hasn't iptables libiptc headers and binary correctly
# installed, you need to get iptables sources from http://netfilter.org/
# ./configure them and build them then miniupnpd will build using :
# $ IPTABLESPATH=/path/to/iptables-1.4.1 make
#
CONFIG_OPTIONS ?= $(cat .configure.cache)
CONFIG_OPTIONS += --firewall=iptables
#CFLAGS = -O -g -DDEBUG
CFLAGS ?= -Os
CFLAGS += -fno-strict-aliasing
CFLAGS += -fno-common
CFLAGS += -fstack-protector -fPIE
CFLAGS += -D_FORTIFY_SOURCE=2
CPPFLAGS += -D_GNU_SOURCE
CFLAGS += -Wall
CFLAGS += -Wextra -Wstrict-prototypes -Wdeclaration-after-statement
#CFLAGS += -Wno-missing-field-initializers
#CFLAGS += -ansi	# iptables headers does use typeof which is a gcc extension
LDFLAGS += -Wl,-z,now -Wl,-z,relro -pie
CC ?= gcc
RM = rm -f
INSTALL = install
STRIP ?= strip
PKG_CONFIG ?= pkg-config
CP = cp
DOXYGEN ?= doxygen

DEPFLAGS = -MM -MG -MT $(patsubst %.d,%.o,$@) -MT $@
# -M : with system headers, -MM : without

INSTALLPREFIX ?= $(PREFIX)/usr
SBININSTALLDIR = $(INSTALLPREFIX)/sbin
ETCINSTALLDIR = $(PREFIX)/etc/miniupnpd
MANINSTALLDIR = $(INSTALLPREFIX)/share/man/man8

include config.mk
include $(SRCDIR)/gitrev.mk
include $(SRCDIR)/objects.mk

# sources in netfilter/ directory
NETFILTEROBJS = iptcrdr.o iptpinhole.o nfct_get.o

ALLOBJS = $(BASEOBJS) $(LNXOBJS) $(NETFILTEROBJS)

DEP = $(ALLOBJS:.o=.d)

NETFILTER_SCRIPTS = $(addprefix $(SRCDIR)/netfilter/, \
	iptables_init.sh iptables_removeall.sh \
	ip6tables_init.sh ip6tables_removeall.sh \
	miniupnpd_functions.sh)

ifneq ($(IPTABLES_PCFILE_FOUND),1)

ifeq "$(wildcard /etc/gentoo-release )" ""
LDLIBS ?= -liptc
else # gentoo
# the following is better, at least on gentoo with iptables 1.4.6
# see http://miniupnp.tuxfamily.org/forum/viewtopic.php?p=1618
# and http://miniupnp.tuxfamily.org/forum/viewtopic.php?p=2183
LDLIBS ?= -lip4tc
CPPFLAGS := -DIPTABLES_143 $(CPPFLAGS)
endif

endif # ifneq ($(IPTABLES_PCFILE_FOUND),1)

#LDLIBS += -lnfnetlink

# OpenWrt packager disables https server for IGD v2 and hardcodes libuuid support
ifeq ($(TARGET_OPENWRT),)
LDLIBS += $(shell $(PKG_CONFIG) --static --libs-only-l libssl)

TEST := $(shell $(PKG_CONFIG) --exists uuid && echo 1)
ifeq ($(TEST),1)
LDLIBS += $(shell $(PKG_CONFIG) --static --libs-only-l uuid)
else
$(info please install uuid-dev package / libuuid)
endif # ($(TEST),1)
endif # ($(TARGET_OPENWRT,)

ifneq ($(shell ldd --version | grep GLIBC),)
GLIBC_VERSION := $(shell ldd --version | head -n 1 | sed 's/^.* //')
GLIBC_VERSION_MAJOR = $(shell echo $(GLIBC_VERSION) | cut -f 1 -d . )
GLIBC_VERSION_MINOR = $(shell echo $(GLIBC_VERSION) | cut -f 2 -d . )
# clock_gettime() needs -lrt when glibc version < 2.17
LDLIBS += $(shell if [ $(GLIBC_VERSION_MAJOR) -lt 2 ] \
  || [ \( $(GLIBC_VERSION_MAJOR) -eq 2 \) -a \( $(GLIBC_VERSION_MINOR) -lt 17 \) ] ; \
  then echo "-lrt" ; fi )
endif

TESTUPNPDESCGENOBJS = testupnpdescgen.o upnpdescgen.o

EXECUTABLES = miniupnpd testupnpdescgen testgetifstats \
              testupnppermissions miniupnpdctl testgetifaddr \
              testgetroute testasyncsendto testportinuse \
              testssdppktgen testminissdp

.PHONY:	all clean install depend dox

all:	$(EXECUTABLES)

clean:
	$(RM) config.h
	$(RM) $(ALLOBJS)
	$(RM) $(DEP)
	$(RM) $(EXECUTABLES)
	$(RM) testupnpdescgen.o testgetifstats.o
	$(RM) testupnppermissions.o testgetifaddr.o
	$(RM) testgetroute.o testasyncsendto.o
	$(RM) testportinuse.o
	$(RM) testminissdp.o
	$(RM) testssdppktgen.o
	$(RM) miniupnpdctl.o
	$(RM) validateupnppermissions validategetifaddr validatessdppktgen
	$(RM) -r dox/

install:	miniupnpd $(SRCDIR)/miniupnpd.8 miniupnpd.conf \
	$(NETFILTER_SCRIPTS) \
	$(SRCDIR)/linux/miniupnpd.init.d.script
	$(STRIP) miniupnpd
	$(INSTALL) -d $(DESTDIR)$(SBININSTALLDIR)
	$(INSTALL) miniupnpd $(DESTDIR)$(SBININSTALLDIR)
	$(INSTALL) -d $(DESTDIR)$(ETCINSTALLDIR)
	$(INSTALL) $(SRCDIR)/netfilter/iptables_init.sh $(DESTDIR)$(ETCINSTALLDIR)
	$(INSTALL) $(SRCDIR)/netfilter/iptables_removeall.sh $(DESTDIR)$(ETCINSTALLDIR)
	$(INSTALL) $(SRCDIR)/netfilter/ip6tables_init.sh $(DESTDIR)$(ETCINSTALLDIR)
	$(INSTALL) $(SRCDIR)/netfilter/ip6tables_removeall.sh $(DESTDIR)$(ETCINSTALLDIR)
	$(INSTALL) $(SRCDIR)/netfilter/miniupnpd_functions.sh $(DESTDIR)$(ETCINSTALLDIR)
	$(INSTALL) --mode=0644 -b $(SRCDIR)/miniupnpd.conf $(DESTDIR)$(ETCINSTALLDIR)
	$(INSTALL) -d $(DESTDIR)$(PREFIX)/etc/init.d
	$(INSTALL) $(SRCDIR)/linux/miniupnpd.init.d.script $(DESTDIR)$(PREFIX)/etc/init.d/miniupnpd
	$(INSTALL) -d $(DESTDIR)$(MANINSTALLDIR)
	$(INSTALL) --mode=0644 $(SRCDIR)/miniupnpd.8 $(DESTDIR)$(MANINSTALLDIR)
	gzip -f $(DESTDIR)$(MANINSTALLDIR)/miniupnpd.8

# genuuid is using the uuidgen CLI tool which is part of libuuid
# from the e2fsprogs
# 'cat /proc/sys/kernel/random/uuid' could be also used
miniupnpd.conf:	$(SRCDIR)/miniupnpd.conf
ifeq ($(TARGET_OPENWRT),)
	sed -e "s/^uuid=[-0-9a-f]*/uuid=`(genuuid||uuidgen||uuid) 2>/dev/null`/" $< > $@.tmp
else
	sed -e "s/^uuid=[-0-9a-f]*/uuid=`($(STAGING_DIR_HOST)/bin/genuuid||$(STAGING_DIR_HOST)/bin/uuidgen||$(STAGING_DIR_HOST)/bin/uuid) 2>/dev/null`/" $< > $@.tmp
endif
	mv $@.tmp $@

include $(SRCDIR)/check.mk

miniupnpd:	$(BASEOBJS) $(LNXOBJS) $(NETFILTEROBJS)

testupnpdescgen:	$(TESTUPNPDESCGENOBJS)

testgetifstats:	testgetifstats.o getifstats.o

testupnppermissions:	testupnppermissions.o upnppermissions.o

testgetifaddr:	testgetifaddr.o getifaddr.o

testgetroute:	testgetroute.o getroute.o upnputils.o

testssdppktgen:	testssdppktgen.o

testasyncsendto:	testasyncsendto.o asyncsendto.o upnputils.o \
	getroute.o

testportinuse:	testportinuse.o portinuse.o getifaddr.o \
	iptcrdr.o

testminissdp:	testminissdp.o minissdp.o upnputils.o upnpglobalvars.o \
	asyncsendto.o getroute.o


miniupnpdctl:	miniupnpdctl.o

config.mk config.h:	$(SRCDIR)/configure $(SRCDIR)/VERSION
	$(SHELL) $< $(CONFIG_OPTIONS)

depend:	$(DEP)

%.d:	$(SRCDIR)/%.c
	$(CC) $(CPPFLAGS) $(DEPFLAGS) -o $@ $<

dox:	$(SRCDIR)/miniupnpd.doxyconf
	(cat $< ; echo "INPUT=$(SRCDIR)" ) | $(DOXYGEN) -

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

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

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

print-%:
	@echo "$* = $($*)"

ifneq ($(MAKECMDGOALS),clean)
-include $(DEP)
endif