Update Traffic Engineering Support for OSPFD

NOTE: I am squashing several commits together because they
do not independently compile and we need this ability to
do any type of sane testing on the patches.  Since this
series builds together I am doing this. -DBS

This new structure is the basis to get new link parameters for
Traffic Engineering from Zebra/interface layer to OSPFD and ISISD
for the support of Traffic Engineering

* lib/if.[c,h]: link parameters struture and get/set functions
* lib/command.[c,h]: creation of a new link-node
* lib/zclient.[c,h]: modification to the ZBUS message to convey the
link parameters structure
* lib/zebra.h: New ZBUS message

Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>

Add support for IEEE 754 format

* lib/stream.[c,h]: Add stream_get{f,d} and stream_put{f,d}) demux and muxers to
  safely convert between big-endian IEEE-754 single and double binary
  format, as used in IETF RFCs, and C99.  Implementation depends on host
  using __STDC_IEC_559__, which should be everything we care about.  Should
  correctly error out otherwise.
* lib/network.[c,h]: Add ntohf and htonf converter
* lib/memtypes.c: Add new memeory type for Traffic Engineering support

Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>

Add link parameters support to Zebra

* zebra/interface.c:
   - Add new link-params CLI commands
   - Add new functions to set/get link parameters for interface
* zebra/redistribute.[c,h]: Add new function to propagate link parameters
to routing daemon (essentially OSPFD and ISISD) for Traffic Engineering.
* zebra/redistribute_null.c: Add new function
zebra_interface_parameters_update()
* zebra/zserv.[c,h]: Add new functions to send link parameters

Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>

Add support of new link-params CLI to vtysh

In vtysh_config.c/vtysh_config_parse_line(), it is not possible to continue
to use the ordered version for adding line i.e. config_add_line_uniq() to print
Interface CLI commands as it completely break the new LINK_PARAMS_NODE.

Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>

Update Traffic Engineering support for OSPFD

These patches update original code to RFC3630 (OSPF-TE) and add support of
RFC5392 (Inter-AS v2) & RFC7471 (TE metric extensions) and partial support
of RFC6827 (ASON - GMPLS).

* ospfd/ospf_dump.[c,h]: Add new dump functions for Traffic Engineering
* ospfd/ospf_opaque.[c,h]: Add new TLV code points for RFC5392
* ospfd/ospf_packet.c: Update checking of OSPF_OPTION
* ospfd/ospf_vty.[c,h]: Update ospf_str2area_id
* ospfd/ospf_zebra.c: Add new function ospf_interface_link_params() to get
Link Parameters information from the interface to populate Traffic Engineering
metrics
* ospfd/ospfd.[c,h]: Update OSPF_OPTION flags (T -> MT and new DN)
* ospfd/ospf_te.[c,h]: Major modifications to update the code to new
link parameters structure and new RFCs

Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>

tmp

1 files changed, 21 insertions, 0 deletions

diff --git a/ospfd/ospf_zebra.c b/ospfd/ospf_zebra.c
index a31ef5f707..c0b94a3360 100644
--- a/ospfd/ospf_zebra.c
+++ b/ospfd/ospf_zebra.c
@@ -53,6 +53,7 @@
 #ifdef HAVE_SNMP
 #include "ospfd/ospf_snmp.h"
 #endif /* HAVE_SNMP */
+#include "ospfd/ospf_te.h"
 
 /* Zebra structure to hold current status. */
 struct zclient *zclient = NULL;
@@ -331,6 +332,24 @@ ospf_interface_address_delete (int command, struct zclient *zclient,
   return 0;
 }
 
+static int
+ospf_interface_link_params (int command, struct zclient *zclient,
+                        zebra_size_t length)
+{
+  struct interface *ifp;
+
+  ifp = zebra_interface_link_params_read (zclient->ibuf);
+
+  if (ifp == NULL)
+    return 0;
+
+  /* Update TE TLV */
+  ospf_mpls_te_update_if (ifp);
+
+  return 0;
+}
+
+
 void
 ospf_zebra_add (struct prefix_ipv4 *p, struct ospf_route *or)
 {
@@ -1580,6 +1599,8 @@ ospf_zebra_init (struct thread_master *master, u_short instance)
   zclient->interface_down = ospf_interface_state_down;
   zclient->interface_address_add = ospf_interface_address_add;
   zclient->interface_address_delete = ospf_interface_address_delete;
+  zclient->interface_link_params = ospf_interface_link_params;
+
   zclient->ipv4_route_add = ospf_zebra_read_ipv4;
   zclient->ipv4_route_delete = ospf_zebra_read_ipv4;
   zclient->redistribute_route_ipv4_add = ospf_zebra_read_ipv4;