zebra: dump label table information

Add the new command "show debugging labeltable" to show allocated label
chunks in the lablel table managed with label_manager.c

Signed-off-by: Farid Mihoub <[email protected]>

zebra/label_manager.c

@@ -33,6 +33,7 @@
 #include "lib/stream.h"
 #include "lib/zclient.h"
 #include "lib/libfrr.h"
+#include "lib/vty.h"
 
 //#include "zebra/zserv.h"
 #include "zebra/zebra_router.h"
@@ -158,6 +159,21 @@ void lm_hooks_unregister(void)
 	hook_unregister(lm_release_chunk, label_manager_release_label_chunk);
 }
 
+DEFUN(show_label_table, show_label_table_cmd, "show debugging labeltable",
+      SHOW_STR DEBUG_STR "Display LABLE Chunks allocated\n")
+{
+        struct label_manager_chunk *lmc;
+        struct listnode *node;
+
+        for (ALL_LIST_ELEMENTS_RO(lbl_mgr.lc_list, node, lmc)) {
+                vty_out(vty, "Proto %s: [%u/%u]\n",
+                        zebra_route_string(lmc->proto), lmc->start, lmc->end);
+        }
+
+        return CMD_SUCCESS;
+}
+
+
 /**
  * Init label manager (or proxy to an external one)
  */
@@ -172,6 +188,8 @@ void label_manager_init(void)
 
 	/* notify any external module that we are done */
 	hook_call(lm_cbs_inited);
+
+	install_element(VIEW_NODE, &show_label_table_cmd);
 }
 
 /* alloc and fill a label chunk */

zebra/subdir.am

@@ -121,6 +121,7 @@ clippy_scan += \
 	zebra/zebra_srv6_vty.c \
 	zebra/zebra_vrf.c \
 	zebra/dpdk/zebra_dplane_dpdk_vty.c \
+	zebra/label_manager.c \
 	# end
 
 noinst_HEADERS += \