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authorRuss White <russ@riw.us>2023-02-21 08:03:06 -0500
committerGitHub <noreply@github.com>2023-02-21 08:03:06 -0500
commit62bd2580e3e7934d3512b6a88aaf93528a1d2f26 (patch)
treea41517de9fb95bd4e1620dc16c0be7e64f9b6de3 /ospfd/ospf_packet.c
parentba755d35e508c2452e5459bdd7c0dd67a70a88a4 (diff)
parent044561b1bb14432f20e3e9d5077964f4e7486972 (diff)
Merge pull request #12366 from manojvn/ospfv2-flood-reduction
ospfd: Support OSPF Refresh and Flooding Reduction RFC4136.
Diffstat (limited to 'ospfd/ospf_packet.c')
-rw-r--r--ospfd/ospf_packet.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/ospfd/ospf_packet.c b/ospfd/ospf_packet.c
index 4c2f5d72b3..5268c9896b 100644
--- a/ospfd/ospf_packet.c
+++ b/ospfd/ospf_packet.c
@@ -28,6 +28,7 @@
#include "ospfd/ospf_network.h"
#include "ospfd/ospf_interface.h"
#include "ospfd/ospf_ism.h"
+#include "ospfd/ospf_abr.h"
#include "ospfd/ospf_asbr.h"
#include "ospfd/ospf_lsa.h"
#include "ospfd/ospf_lsdb.h"
@@ -3317,6 +3318,14 @@ static int ospf_make_hello(struct ospf_interface *oi, struct stream *s)
else
stream_putw(s, 0); /* hello-interval of 0 for fast-hellos */
+ /* Check if flood-reduction is enabled,
+ * if yes set the DC bit in the options.
+ */
+ if (OSPF_FR_CONFIG(oi->ospf, oi->area))
+ SET_FLAG(OPTIONS(oi), OSPF_OPTION_DC);
+ else if (CHECK_FLAG(OPTIONS(oi), OSPF_OPTION_DC))
+ UNSET_FLAG(OPTIONS(oi), OSPF_OPTION_DC);
+
if (IS_DEBUG_OSPF_EVENT)
zlog_debug("%s: options: %x, int: %s", __func__, OPTIONS(oi),
IF_NAME(oi));
@@ -3405,6 +3414,8 @@ static int ospf_make_db_desc(struct ospf_interface *oi,
options = OPTIONS(oi);
if (CHECK_FLAG(oi->ospf->config, OSPF_OPAQUE_CAPABLE))
SET_FLAG(options, OSPF_OPTION_O);
+ if (OSPF_FR_CONFIG(oi->ospf, oi->area))
+ SET_FLAG(options, OSPF_OPTION_DC);
stream_putc(s, options);
/* DD flags */