[zebra] Bug #351: Don't redistribute routes to ipv4 link-local prefixes
2007-04-07 Paul Jakma <paul.jakma@sun.com>
* lib/prefix.h: Add define to match IPv4 Link-Local addresses
* zebra/redistribute.c: (zebra_check_addr) Don't redistribute routes
to IPv4 link-local prefixes, fixes bug #351.
* zebra/redistribute.h: Export zebra_check_addr.
* zebra/router-id.c: (router_id_bad_address) re-use zebra_check_addr
rather than implementing similar logic.
diff --git a/lib/ChangeLog b/lib/ChangeLog
index 99b82b1..c58fef2 100644
--- a/lib/ChangeLog
+++ b/lib/ChangeLog
@@ -1,3 +1,7 @@
+2007-04-07 Paul Jakma <paul.jakma@sun.com>
+
+ * prefix.h: Add define to match IPv4 Link-Local addresses
+
2007-03-20 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* log.c: (mes_lookup) Make the function more robust: check for
diff --git a/lib/prefix.h b/lib/prefix.h
index f2a2adf..9cfc155 100644
--- a/lib/prefix.h
+++ b/lib/prefix.h
@@ -111,6 +111,7 @@
#define IPV4_NET0(a) ((((u_int32_t) (a)) & 0xff000000) == 0x00000000)
#define IPV4_NET127(a) ((((u_int32_t) (a)) & 0xff000000) == 0x7f000000)
+#define IPV4_LINKLOCAL(a) ((((u_int32_t) (a)) & 0xffff0000) == 0xa9fe0000)
/* Max bit/byte length of IPv6 address. */
#define IPV6_MAX_BYTELEN 16