From a3ff3dff3fcf3e264d4484a1ce5bbe40db3edcb7 Mon Sep 17 00:00:00 2001
From: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
Date: Thu, 27 Oct 2022 20:01:24 +0200
Subject: [PATCH] lib,zebra: Add SRv6 uSID info to VTY output

In this commit, we extend to print the `SRV6_LOCATOR_USID` flag.
The output appears as follows:

```
{
  "locators":[
    {
      "name":"loc1",
      "prefix":"fc00:0:1::/48",
      "blockBitsLength":32,
      "nodeBitsLength":16,
      "functionBitsLength":16,
      "argumentBitsLength":0,
      "uSID":true,
      "statusUp":true,
      "chunks":[
        {
          "prefix":"fc00:0:1::/48",
          "proto":"bgp"
        }
      ]
    }
  ]
}
```

Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
---
 lib/srv6.c             | 8 ++++++++
 zebra/zebra_srv6_vty.c | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/lib/srv6.c b/lib/srv6.c
index 306d92ae30..b7142d618c 100644
--- a/lib/srv6.c
+++ b/lib/srv6.c
@@ -245,6 +245,10 @@ json_object *srv6_locator_json(const struct srv6_locator *loc)
 	json_object_int_add(jo_root, "argumentBitsLength",
 			    loc->argument_bits_length);
 
+	/* set true if the locator is a Micro-segment (uSID) locator */
+	if (CHECK_FLAG(loc->flags, SRV6_LOCATOR_USID))
+		json_object_string_add(jo_root, "behavior", "usid");
+
 	/* set status_up */
 	json_object_boolean_add(jo_root, "statusUp",
 				loc->status_up);
@@ -290,6 +294,10 @@ json_object *srv6_locator_detailed_json(const struct srv6_locator *loc)
 	json_object_int_add(jo_root, "argumentBitsLength",
 			    loc->argument_bits_length);
 
+	/* set true if the locator is a Micro-segment (uSID) locator */
+	if (CHECK_FLAG(loc->flags, SRV6_LOCATOR_USID))
+		json_object_string_add(jo_root, "behavior", "usid");
+
 	/* set algonum */
 	json_object_int_add(jo_root, "algoNum", loc->algonum);
 
diff --git a/zebra/zebra_srv6_vty.c b/zebra/zebra_srv6_vty.c
index 9adfc6550a..956669af56 100644
--- a/zebra/zebra_srv6_vty.c
+++ b/zebra/zebra_srv6_vty.c
@@ -174,6 +174,9 @@ DEFUN (show_srv6_locator_detail,
 		vty_out(vty, "Argument-Bit-Len: %u\n",
 			locator->argument_bits_length);
 
+		if (CHECK_FLAG(locator->flags, SRV6_LOCATOR_USID))
+			vty_out(vty, "Behavior: uSID\n");
+
 		vty_out(vty, "Chunks:\n");
 		for (ALL_LIST_ELEMENTS_RO((struct list *)locator->chunks, node,
 					  chunk)) {