improved Makefile and configure script

2 files changed, 103 insertions, 64 deletions

diff --git a/src/Makefile b/src/Makefile
index bdee4fe..f5eea2c 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -32,88 +32,51 @@
 ##  along with ľAnytun. If not, see <http://www.gnu.org/licenses/>.
 ##
 
-TARGET=$(shell uname -s)
-CC = gcc
-CCFLAGS = -g -O2 -DANYTUN_02_COMPAT #-DUSE_SSL_CRYPTO #-DNO_CRYPT
-LD = gcc
-LDFLAGS = -g -Wall -O2 -lgcrypt -lgpg-error #-lcrypto
-
-ifeq ($(TARGET),Linux)
-  LDFLAGS += -ldl
-endif
-ifeq ($(TARGET),OpenBSD)
-  CCFLAGS += -I/usr/local/include -DNO_UDPV6
-  LDFLAGS += -L/usr/local/lib
-endif
-
-CRYPT_OBJS = key_derivation.o \
-             auth_algo.o
-
-OBJS = log.o \
-       signal.o \
-       options.o \
-       tun.o \
-       udp.o \
-       plain_packet.o \
-       encrypted_packet.o \
-       seq_window.o \
-       cipher.o \
-       uanytun.o
-
-OBJS += $(CRYPT_OBJS)
+include include.mk
 
+DEPENDFILE = .depend
 EXECUTABLE = uanytun
 
-all: $(EXECUTABLE)
-
-uanytun: $(OBJS)
-	$(LD) $(OBJS) -o $@ $(LDFLAGS)
-
-uanytun.o: uanytun.c
-	$(CC) $(CCFLAGS) $< -c
-
-log.o: log.c log.h
-	$(CC) $(CCFLAGS) $< -c
-
-signal.o: signal.c signal.h
-	$(CC) $(CCFLAGS) $< -c
+CRYPT_OBJ = key_derivation.o \
+             auth_algo.o
+OBJ = log.o \
+      signal.o \
+      options.o \
+      tun.o \
+      udp.o \
+      plain_packet.o \
+      encrypted_packet.o \
+      seq_window.o \
+      cipher.o \
+      uanytun.o
 
-options.o: options.c options.h
-	$(CC) $(CCFLAGS) $< -c
+OBJ += $(CRYPT_OBJ)
 
-tun.o: tun.c tun.h
-	$(CC) $(CCFLAGS) $< -c
+SRC = $(OBJ:%.o=%.c)
 
-udp.o: udp.c udp.h
-	$(CC) $(CCFLAGS) $< -c
+.PHONY: dep distclean clean
 
-plain_packet.o: plain_packet.c plain_packet.h
-	$(CC) $(CCFLAGS) $< -c
+all: dep $(EXECUTABLE)
 
-encrypted_packet.o: encrypted_packet.c encrypted_packet.h
-	$(CC) $(CCFLAGS) $< -c
+dep: $(SRC)
+	$(CC) -MM $(SRC) > $(DEPENDFILE)
 
-seq_window.o: seq_window.c seq_window.h
-	$(CC) $(CCFLAGS) $< -c
+-include $(DEPENDFILE)
 
-key_derivation.o: key_derivation.c key_derivation.h
-	$(CC) $(CCFLAGS) $< -c
+uanytun: $(OBJ)
+	$(LD) $(OBJ) -o $@ $(LDFLAGS)
 
-cipher.o: cipher.c cipher.h
-	$(CC) $(CCFLAGS) $< -c
+%.o: %.c
+	$(CC) $(CFLAGS) -c $<
 
-auth_algo.o: auth_algo.c auth_algo.h
-	$(CC) $(CCFLAGS) $< -c
 
 distclean: clean
 	find . -name *.o -exec rm -f {} \;
 	find . -name "*.\~*" -exec rm -rf {} \;
+	rm -f include.mk
 	rm -f tun.c
 
 clean:
 	rm -f *.o
+	rm -f $(DEPENDFILE)
 	rm -f $(EXECUTABLE)
-
-ctags:
-	ctags -R --c++-kinds=+p --fields=+iaS --extra=+q .
-
diff --git a/src/configure b/src/configure
index e17d6e3..3246ca0 100755
--- a/src/configure
+++ b/src/configure
@@ -35,16 +35,92 @@
 
 TARGET=`uname -s`
 
+CFLAGS='-g -O2'
+LDFLAGS='-g -Wall -O2'
+
+CRYPTO_LIB='gcrypt'
+ANYTUN_02_COMPAT=0
+V4_MAPPED=1
+
+for arg
+do
+  case $arg in
+  --use-ssl-crypto)
+    CRYPTO_LIB='ssl'
+  ;;
+  --disable-crypto)
+    CRYPTO_LIB='none'
+  ;; 
+  --enable-anytun02-compat)
+    ANYTUN_02_COMPAT=1
+  ;;
+  --disable-v4-mapped)
+    V4_MAPPED=0 
+  ;; 
+  *)
+    echo "Unknown argument: $arg"
+    exit 1
+  ;;
+  esac
+done
+
+rm -f include.mk
 case $TARGET in 
 	Linux)
 		rm -rf tun.c
 		ln -sf linux/tun.c
+    echo "loading Linux specific TUN Device"
+    LDFLAGS=$LDFLAGS" -ldl"
 	;;
 	OpenBSD|FreeBSD|NetBSD)
 		rm -rf tun.c
 		ln -sf bsd/tun.c
+    echo "loading BSD specific TUN Device"
+    CFLAGS=$CFLAGS' -I/usr/local/include'
+    LDFLAGS=$LDFLAGS' -L/usr/local/lib'
+    if [ '$TARGET' == 'OpenBSD' ]; then
+      V4_MAPPED=0
+    fi
 	;;
 	*)
 		echo "Plattform not supported"
+    exit 1;
 	;;
 esac
+
+
+case $CRYPTO_LIB in
+  gcrypt)
+    LDFLAGS=$LDFLAGS' -lgcrypt -lgpg-error'
+    echo "Using libgcrypt library"
+  ;;
+  ssl)
+    CFLAGS=$CFLAGS' -DUSE_SSL_CRYPTO'
+    LDFLAGS=$LDFLAGS' -lcrypto'
+    echo "Using ssl crypto library"
+  ;;
+  none)
+    CFLAGS=$CFLAGS' -DNO_CRYPT'
+    echo "Disabling crypto"
+  ;;
+esac
+
+if [ $ANYTUN_02_COMPAT -eq 1 ]; then
+  CFLAGS=$CFLAGS' -DANYTUN_02_COMPAT'
+  echo "enbabling anytun 0.2 crypto compatiblity mode"
+fi
+
+if [ $V4_MAPPED -eq 0 ]; then
+  CFLAGS=$CFLAGS' -DNO_UDPV6'
+  echo "WARNING: disabling V4 mapped addresses, this prevents uanytun from using IPv6 as outer Protocol"
+fi
+
+cat >> include.mk <<EOF
+TARGET = $TARGET
+CC = gcc
+CFLAGS = $CFLAGS
+LD = gcc
+LDFLAGS = $LDFLAGS
+EOF
+
+exit 0