Second night's commit.

We're a bit closer to something sane, now. We can wrap, but not unwrap,
packets.

Asymmetric encryption is *big*. encrypted text with a 4096-bit RSA
public key is 512 bytes. We can't fragment yet. Fortunately, this
isn't an infinite regress once we *can* fragment.

Performance is still a big question mark, of course.

There may still be endianness issues hanging around.

The eid<->rloc map is almost certainly far, far too slow to be of
any use in the real world.

pass-1/Makefile

@@ -1,12 +1,15 @@
 #!/usr/bin/make -f
+CFLAGS := $(CFLAGS) -Wall -Werror --std=c99
 
-CFLAGS=-Wall -Werror --std=gnu99
-
-LDFLAGS=-ljson-c -lpcap
+LDFLAGS := $(LDFLAGS) -ljson-c -lssl -lcrypto
 
 .PHONY: clean
 
 all: wrapper unwrapper
 
+rlocs.o: util.o
+
+wrapper: util.o rlocs.o
+
 clean:
-	rm -f wrapper unwrapper
+	rm -f wrapper unwrapper *.o