sharpd: add support for setting protodown

Add support for setting protodown via sharpd. This is just useful
for testing. We can make use of this in topotests.

Signed-off-by: Stephen Worley <sworley@nvidia.com>

sharpd/sharp_vty.c

@@ -1258,6 +1258,67 @@ DEFPY (show_sharp_cspf,
 	return CMD_SUCCESS;
 }
 
+static struct interface *if_lookup_vrf_all(const char *ifname)
+{
+	struct interface *ifp;
+	struct vrf *vrf;
+
+	RB_FOREACH(vrf, vrf_name_head, &vrfs_by_name) {
+		ifp = if_lookup_by_name(ifname, vrf->vrf_id);
+		if (ifp)
+			return ifp;
+	}
+
+	return NULL;
+}
+
+DEFPY (sharp_interface_protodown,
+       sharp_interface_protodown_cmd,
+       "sharp interface IFNAME$ifname protodown",
+       SHARP_STR
+       INTERFACE_STR
+       IFNAME_STR
+       "Set interface protodown\n")
+{
+	struct interface *ifp;
+
+	ifp = if_lookup_vrf_all(ifname);
+
+	if (!ifp) {
+		vty_out(vty, "%% Can't find interface %s\n", ifname);
+		return CMD_WARNING;
+	}
+
+	if (sharp_zebra_send_interface_protodown(ifp, true) != 0)
+		return CMD_WARNING;
+
+	return CMD_SUCCESS;
+}
+
+DEFPY (no_sharp_interface_protodown,
+       no_sharp_interface_protodown_cmd,
+       "no sharp interface IFNAME$ifname protodown",
+       NO_STR
+       SHARP_STR
+       INTERFACE_STR
+       IFNAME_STR
+       "Set interface protodown\n")
+{
+	struct interface *ifp;
+
+	ifp = if_lookup_vrf_all(ifname);
+
+	if (!ifp) {
+		vty_out(vty, "%% Can't find interface %s\n", ifname);
+		return CMD_WARNING;
+	}
+
+	if (sharp_zebra_send_interface_protodown(ifp, false) != 0)
+		return CMD_WARNING;
+
+	return CMD_SUCCESS;
+}
+
 void sharp_vty_init(void)
 {
 	install_element(ENABLE_NODE, &install_routes_data_dump_cmd);
@@ -1290,5 +1351,8 @@ void sharp_vty_init(void)
 			&sharp_srv6_manager_release_locator_chunk_cmd);
 	install_element(ENABLE_NODE, &show_sharp_segment_routing_srv6_cmd);
 
+	install_element(ENABLE_NODE, &sharp_interface_protodown_cmd);
+	install_element(ENABLE_NODE, &no_sharp_interface_protodown_cmd);
+
 	return;
 }

sharpd/sharp_zebra.c

@@ -968,6 +968,18 @@ static int sharp_zebra_process_srv6_locator_chunk(ZAPI_CALLBACK_ARGS)
 	return 0;
 }
 
+int sharp_zebra_send_interface_protodown(struct interface *ifp, bool down)
+{
+	zlog_debug("Sending zebra to set %s protodown %s", ifp->name,
+		   down ? "on" : "off");
+
+	if (zclient_send_interface_protodown(zclient, ifp->vrf->vrf_id, ifp,
+					     down) == ZCLIENT_SEND_FAILURE)
+		return -1;
+
+	return 0;
+}
+
 static zclient_handler *const sharp_handlers[] = {
 	[ZEBRA_INTERFACE_ADDRESS_ADD] = interface_address_add,
 	[ZEBRA_INTERFACE_ADDRESS_DELETE] = interface_address_delete,

sharpd/sharp_zebra.h

@@ -73,4 +73,6 @@ extern void sharp_install_seg6local_route_helper(struct prefix *p,
 						 enum seg6local_action_t act,
 						 struct seg6local_context *ctx);
 
+extern int sharp_zebra_send_interface_protodown(struct interface *ifp,
+						bool down);
 #endif