Generate a random IID if one is not specified.

- Add code to generate a random IPv6 address that's
  checksum-neutral with the NAT64 prefix and clat IPv4 address.
- Only calculate the IP address after the NAT64 prefix is known.
- Because the clat IPv6 address is no longer determinisitic,
  modify interface_poll so it checks whether the prefix has
  changed instead of checking whether the IPv6 address has
  changed.
- Add/update unit tests.

Change-Id: Ia53716ca5315ebdd0eaa3ad3a07552bf18e9dd5c

1 files changed, 4 insertions, 0 deletions

diff --git a/checksum.h b/checksum.h
index 6195810..d0af88e 100644
--- a/checksum.h
+++ b/checksum.h
@@ -18,6 +18,10 @@
 #ifndef __CHECKSUM_H__
 #define __CHECKSUM_H__
 
+#include <stdint.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+
 uint32_t ip_checksum_add(uint32_t current, const void *data, int len);
 uint16_t ip_checksum_finish(uint32_t temp_sum);
 uint16_t ip_checksum(const void *data, int len);