From 57a9c8a831e72be92ba751c2fe2f3f9ab9fba5a8 Mon Sep 17 00:00:00 2001
From: Donald Sharp <sharpd@cumulusnetworks.com>
Date: Tue, 10 Oct 2017 16:30:36 -0400
Subject: [PATCH] bgpd: Add ability to display information about bestpath in
 json

When retrieving information about neighbors or summary in json
add some information about what bestPath particulars we have for
this bgp session.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
---
 bgpd/bgp_vty.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/bgpd/bgp_vty.c b/bgpd/bgp_vty.c
index 355d1037b8..ea6632bf13 100644
--- a/bgpd/bgp_vty.c
+++ b/bgpd/bgp_vty.c
@@ -6652,6 +6652,48 @@ DEFUN (show_bgp_memory,
 	return CMD_SUCCESS;
 }
 
+static void bgp_show_bestpath_json(struct bgp *bgp, json_object *json)
+{
+	json_object *bestpath = json_object_new_object();
+
+	if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_IGNORE))
+		json_object_string_add(bestpath, "asPath", "ignore");
+
+	if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_CONFED))
+		json_object_string_add(bestpath, "asPath", "confed");
+
+	if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_MULTIPATH_RELAX)) {
+		if (bgp_flag_check(bgp,
+				   BGP_FLAG_MULTIPATH_RELAX_AS_SET))
+			json_object_string_add(bestpath,
+					       "multiPathRelax",
+					       "as-set");
+		else
+			json_object_string_add(bestpath,
+					       "multiPathRelax",
+					       "true");
+	} else
+		json_object_string_add(bestpath,
+				       "multiPathRelax",
+				       "false");
+
+	if (bgp_flag_check(bgp, BGP_FLAG_COMPARE_ROUTER_ID))
+		json_object_string_add(bestpath, "compareRouterId", "true");
+	if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED)
+	    || bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) {
+		if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED))
+			json_object_string_add(bestpath, "med",
+					       "confed");
+		if (bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST))
+			json_object_string_add(bestpath, "med",
+					       "missing-as-worst");
+		else
+			json_object_string_add(bestpath, "med", "true");
+	}
+
+	json_object_object_add(json, "bestPath", bestpath);
+}
+
 /* Show BGP peer's summary information. */
 static int bgp_show_summary(struct vty *vty, struct bgp *bgp, int afi, int safi,
 			    u_char use_json, json_object *json)
@@ -7048,6 +7090,8 @@ static int bgp_show_summary(struct vty *vty, struct bgp *bgp, int afi, int safi,
 		json_object_int_add(json, "totalPeers", count);
 		json_object_int_add(json, "dynamicPeers", dn_count);
 
+		bgp_show_bestpath_json(bgp, json);
+
 		vty_out(vty, "%s\n", json_object_to_json_string_ext(
 					     json, JSON_C_TO_STRING_PRETTY));
 		json_object_free(json);
@@ -9745,6 +9789,7 @@ static int bgp_show_neighbor(struct vty *vty, struct bgp *bgp,
 	}
 
 	if (use_json) {
+		bgp_show_bestpath_json(bgp, json);
 		vty_out(vty, "%s\n", json_object_to_json_string_ext(
 					     json, JSON_C_TO_STRING_PRETTY));
 		json_object_free(json);
-- 
2.39.5