Merge quagga mainline into the google ISIS code.

The steps were:

  $ git checkout google-is-is
  $ git merge quagga
  $ git checkout google-is-is -- isisd

  # Resolve conflicts in the following:
  lib/md5.h
  zebra/rt_netlink.c
  zebra/zebra_rib.c
  zebra/zserv.c

Note that the content in the isisd directory is left unchanged in the
merge. As a result, changes made to isisd as part of the following
commits on the quagga mainline are dropped.

  # 8ced4e82 is the merge base, e96b3121 is the current quagga master
  $ git log --oneline --reverse 8ced4e82..e96b3121 -- isisd
  5574999 isisd: fix crash on "no router isis" (BZ#536)
  8998075 isisd: raise hello rate for DIS (BZ#539)
  306ca83 isisd: include hash.h, not hash.c
  b82cdeb delete CVS keywords
  2f65867 isisd: indent longopts array
  b511468 quagga: option "-z" ("--socket <path>") added
  05e54ee build: delete .cvsignore files
  b4e45f6 fix zebra protocol after MP-BGP changes
  7fd6cd8 isisd: fix circuit state machine
  907fd95 isisd: send proper LSP after DIS election
  d034aa0 isisd: fix wrong next-hops from SPF
  c25eaff isisd: unexpected kernel routing table (BZ#544)
  e6b03b7 isisd: implement MD5 circuit authentication

1 files changed, 9 insertions, 19 deletions

diff --git a/lib/zebra.h b/lib/zebra.h
index 2dc84514..ab072d6e 100644
--- a/lib/zebra.h
+++ b/lib/zebra.h
@@ -237,10 +237,6 @@ typedef int socklen_t;
 #define UINT32_MAX	(4294967295U)
 #endif
 
-#ifdef HAVE_LIBUTIL_H
-#include <libutil.h>
-#endif /* HAVE_LIBUTIL_H */
-
 #ifdef HAVE_GLIBC_BACKTRACE
 #include <execinfo.h>
 #endif /* HAVE_GLIBC_BACKTRACE */
@@ -421,7 +417,8 @@ struct in_pktinfo
 #define ZEBRA_ROUTER_ID_ADD               20
 #define ZEBRA_ROUTER_ID_DELETE            21
 #define ZEBRA_ROUTER_ID_UPDATE            22
-#define ZEBRA_MESSAGE_MAX                 23
+#define ZEBRA_HELLO                       23
+#define ZEBRA_MESSAGE_MAX                 24
 
 /* Marker value used in new Zserv, in the byte location corresponding
  * the command value in the old zserv header. To allow old and new
@@ -429,19 +426,8 @@ struct in_pktinfo
  */
 #define ZEBRA_HEADER_MARKER              255
 
-/* Zebra route's types. */
-#define ZEBRA_ROUTE_SYSTEM               0
-#define ZEBRA_ROUTE_KERNEL               1
-#define ZEBRA_ROUTE_CONNECT              2
-#define ZEBRA_ROUTE_STATIC               3
-#define ZEBRA_ROUTE_RIP                  4
-#define ZEBRA_ROUTE_RIPNG                5
-#define ZEBRA_ROUTE_OSPF                 6
-#define ZEBRA_ROUTE_OSPF6                7
-#define ZEBRA_ROUTE_ISIS                 8
-#define ZEBRA_ROUTE_BGP                  9
-#define ZEBRA_ROUTE_HSLS		 10
-#define ZEBRA_ROUTE_MAX                  11
+/* Zebra route's types are defined in route_types.h */
+#include "route_types.h"
 
 /* Note: whenever a new route-type or zserv-command is added the
  * corresponding {command,route}_types[] table in lib/log.c MUST be
@@ -455,6 +441,10 @@ extern char zebra_route_char(unsigned int route_type);
  * e.g. ZEBRA_INTERFACE_ADD -> "ZEBRA_INTERFACE_ADD" */
 /* Map a protocol name to its number. e.g. ZEBRA_ROUTE_BGP->9*/
 extern int proto_name2num(const char *s);
+/* Map redistribute X argument to protocol number.
+ * unlike proto_name2num, this accepts shorthands and takes
+ * an AFI value to restrict input */
+extern int proto_redistnum(int afi, const char *s);
 
 extern const char *zserv_command_string (unsigned int command);
 
@@ -504,7 +494,7 @@ extern const char *zserv_command_string (unsigned int command);
 /* Subsequent Address Family Identifier. */
 #define SAFI_UNICAST              1
 #define SAFI_MULTICAST            2
-#define SAFI_UNICAST_MULTICAST    3
+#define SAFI_RESERVED_3           3
 #define SAFI_MPLS_VPN             4
 #define SAFI_MAX                  5