ripd: support BFD integration

Implement RIP peer monitoring with BFD.

RFC 5882 Generic Application of Bidirectional Forwarding Detection
(BFD), Section 10.3 Interactions with RIP.

Co-authored-by: Renato Westphal <renato@opensourcerouting.org>
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>

1 files changed, 135 insertions, 0 deletions

diff --git a/ripd/rip_nb_config.c b/ripd/rip_nb_config.c
index 343bb9bb57..cbc62f9f1f 100644
--- a/ripd/rip_nb_config.c
+++ b/ripd/rip_nb_config.c
@@ -23,6 +23,9 @@
 #include "ripd/rip_nb.h"
 #include "ripd/rip_debug.h"
 #include "ripd/rip_interface.h"
+#include "ripd/rip_bfd.h"
+
+DEFINE_MTYPE_STATIC(RIPD, RIP_BFD_PROFILE, "RIP BFD profile name");
 
 /*
  * XPath: /frr-ripd:ripd/instance
@@ -906,6 +909,40 @@ int ripd_instance_version_send_modify(struct nb_cb_modify_args *args)
 }
 
 /*
+ * XPath: /frr-ripd:ripd/instance/default-bfd-profile
+ */
+int ripd_instance_default_bfd_profile_modify(struct nb_cb_modify_args *args)
+{
+	struct rip *rip;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	rip = nb_running_get_entry(args->dnode, NULL, true);
+	XFREE(MTYPE_RIP_BFD_PROFILE, rip->default_bfd_profile);
+	rip->default_bfd_profile =
+		XSTRDUP(MTYPE_RIP_BFD_PROFILE,
+			yang_dnode_get_string(args->dnode, NULL));
+	rip_bfd_instance_update(rip);
+
+	return NB_OK;
+}
+
+int ripd_instance_default_bfd_profile_destroy(struct nb_cb_destroy_args *args)
+{
+	struct rip *rip;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	rip = nb_running_get_entry(args->dnode, NULL, true);
+	XFREE(MTYPE_RIP_BFD_PROFILE, rip->default_bfd_profile);
+	rip_bfd_instance_update(rip);
+
+	return NB_OK;
+}
+
+/*
  * XPath: /frr-interface:lib/interface/frr-ripd:rip/split-horizon
  */
 int lib_interface_rip_split_horizon_modify(struct nb_cb_modify_args *args)
@@ -1071,6 +1108,104 @@ int lib_interface_rip_authentication_password_destroy(
 }
 
 /*
+ * XPath: /frr-interface:lib/interface/frr-ripd:rip/bfd-monitoring
+ */
+int lib_interface_rip_bfd_create(struct nb_cb_create_args *args)
+{
+	struct interface *ifp;
+	struct rip_interface *ri;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	ifp = nb_running_get_entry(args->dnode, NULL, true);
+	ri = ifp->info;
+	ri->bfd.enabled = yang_dnode_get_bool(args->dnode, "./enable");
+	XFREE(MTYPE_RIP_BFD_PROFILE, ri->bfd.profile);
+	if (yang_dnode_exists(args->dnode, "./profile"))
+		ri->bfd.profile = XSTRDUP(
+			MTYPE_RIP_BFD_PROFILE,
+			yang_dnode_get_string(args->dnode, "./profile"));
+
+	rip_bfd_interface_update(ri);
+
+	return NB_OK;
+}
+
+int lib_interface_rip_bfd_destroy(struct nb_cb_destroy_args *args)
+{
+	struct interface *ifp;
+	struct rip_interface *ri;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	ifp = nb_running_get_entry(args->dnode, NULL, true);
+	ri = ifp->info;
+	ri->bfd.enabled = false;
+	XFREE(MTYPE_RIP_BFD_PROFILE, ri->bfd.profile);
+	rip_bfd_interface_update(ri);
+
+	return NB_OK;
+}
+
+/*
+ * XPath: /frr-interface:lib/interface/frr-ripd:rip/bfd-monitoring/enable
+ */
+int lib_interface_rip_bfd_enable_modify(struct nb_cb_modify_args *args)
+{
+	struct interface *ifp;
+	struct rip_interface *ri;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	ifp = nb_running_get_entry(args->dnode, NULL, true);
+	ri = ifp->info;
+	ri->bfd.enabled = yang_dnode_get_bool(args->dnode, NULL);
+	rip_bfd_interface_update(ri);
+
+	return NB_OK;
+}
+
+/*
+ * XPath: /frr-interface:lib/interface/frr-ripd:rip/bfd-monitoring/profile
+ */
+int lib_interface_rip_bfd_profile_modify(struct nb_cb_modify_args *args)
+{
+	struct interface *ifp;
+	struct rip_interface *ri;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	ifp = nb_running_get_entry(args->dnode, NULL, true);
+	ri = ifp->info;
+	XFREE(MTYPE_RIP_BFD_PROFILE, ri->bfd.profile);
+	ri->bfd.profile = XSTRDUP(MTYPE_RIP_BFD_PROFILE,
+				  yang_dnode_get_string(args->dnode, NULL));
+	rip_bfd_interface_update(ri);
+
+	return NB_OK;
+}
+
+int lib_interface_rip_bfd_profile_destroy(struct nb_cb_destroy_args *args)
+{
+	struct interface *ifp;
+	struct rip_interface *ri;
+
+	if (args->event != NB_EV_APPLY)
+		return NB_OK;
+
+	ifp = nb_running_get_entry(args->dnode, NULL, true);
+	ri = ifp->info;
+	XFREE(MTYPE_RIP_BFD_PROFILE, ri->bfd.profile);
+	rip_bfd_interface_update(ri);
+
+	return NB_OK;
+}
+
+/*
  * XPath: /frr-interface:lib/interface/frr-ripd:rip/authentication-key-chain
  */
 int lib_interface_rip_authentication_key_chain_modify(