bgpd: BGP troubleshooting - Add a keyword self-originate to display only self-originated prefixes when looking at the BGP table for a given address-family

Add a keyword self-originate" to extend current CLI commands to filter out self-originated routes only

a\) CLI to show ipv4/ipv6 self-originated routes
	"show [ip] bgp [afi] [safi] [all] self-originate [wide|json]"

b\) CLI to show evpn self-originated routes
    "show bgp l2vpn evpn route [detail] [type <ead|macip|multicast|es|prefix|1|2|3|4|5>] self-originate [json]"

Signed-off-by: Karl Quan <kquan@nvidia.com>

5 files changed, 41 insertions, 5 deletions

diff --git a/bgpd/bgp_evpn_vty.c b/bgpd/bgp_evpn_vty.c
index 6b63c6e3aa..df1a1dd11a 100644
--- a/bgpd/bgp_evpn_vty.c
+++ b/bgpd/bgp_evpn_vty.c
@@ -3023,7 +3023,7 @@ static void evpn_show_route_rd_all_macip(struct vty *vty, struct bgp *bgp,
  * If 'type' is non-zero, only routes matching that type are shown.
  */
 static void evpn_show_all_routes(struct vty *vty, struct bgp *bgp, int type,
-				 json_object *json, int detail)
+				 json_object *json, int detail, bool self_orig)
 {
 	struct bgp_dest *rd_dest;
 	struct bgp_table *table;
@@ -3081,6 +3081,9 @@ static void evpn_show_all_routes(struct vty *vty, struct bgp *bgp, int type,
 
 			pi = bgp_dest_get_bgp_path_info(dest);
 			if (pi) {
+				if (self_orig && (pi->peer != bgp->peer_self))
+					continue;
+
 				/* Overall header/legend displayed once. */
 				if (header) {
 					bgp_evpn_show_route_header(vty, bgp,
@@ -3200,7 +3203,7 @@ int bgp_evpn_show_all_routes(struct vty *vty, struct bgp *bgp, int type,
 	if (use_json)
 		json = json_object_new_object();
 
-	evpn_show_all_routes(vty, bgp, type, json, detail);
+	evpn_show_all_routes(vty, bgp, type, json, detail, false);
 
 	if (use_json)
 		vty_json(vty, json);
@@ -4773,7 +4776,7 @@ int bgp_evpn_cli_parse_type(int *type, struct cmd_token **argv, int argc)
  */
 DEFUN(show_bgp_l2vpn_evpn_route,
       show_bgp_l2vpn_evpn_route_cmd,
-      "show bgp l2vpn evpn route [detail] [type "EVPN_TYPE_ALL_LIST"] [json]",
+      "show bgp l2vpn evpn route [detail] [type "EVPN_TYPE_ALL_LIST"] ["BGP_SELF_ORIG_CMD_STR"] [json]",
       SHOW_STR
       BGP_STR
       L2VPN_HELP_STR
@@ -4782,12 +4785,15 @@ DEFUN(show_bgp_l2vpn_evpn_route,
       "Display Detailed Information\n"
       EVPN_TYPE_HELP_STR
       EVPN_TYPE_ALL_LIST_HELP_STR
+      BGP_SELF_ORIG_HELP_STR
       JSON_STR)
 {
 	struct bgp *bgp;
 	int detail = 0;
 	int type = 0;
 	bool uj = false;
+	int arg_idx = 0;
+	bool self_orig = false;
 	json_object *json = NULL;
 
 	uj = use_json(argc, argv);
@@ -4805,7 +4811,10 @@ DEFUN(show_bgp_l2vpn_evpn_route,
 	if (argv_find(argv, argc, "detail", &detail))
 		detail = 1;
 
-	evpn_show_all_routes(vty, bgp, type, json, detail);
+	if (argv_find(argv, argc, BGP_SELF_ORIG_CMD_STR, &arg_idx))
+		self_orig = true;
+
+	evpn_show_all_routes(vty, bgp, type, json, detail, self_orig);
 
 	/*
 	 * This is an extremely expensive operation at scale
@@ -4871,7 +4880,7 @@ DEFUN(show_bgp_l2vpn_evpn_route_rd,
 		return CMD_WARNING;
 
 	if (rd_all)
-		evpn_show_all_routes(vty, bgp, type, json, 1);
+		evpn_show_all_routes(vty, bgp, type, json, 1, false);
 	else
 		evpn_show_route_rd(vty, bgp, &prd, type, json);
 
diff --git a/bgpd/bgp_route.c b/bgpd/bgp_route.c
index 23e6195d34..963a06fa0c 100644
--- a/bgpd/bgp_route.c
+++ b/bgpd/bgp_route.c
@@ -11458,6 +11458,10 @@ static int bgp_show_table(struct vty *vty, struct bgp *bgp, safi_t safi,
 				    || CHECK_FLAG(pi->flags, BGP_PATH_HISTORY))
 					continue;
 			}
+			if (type == bgp_show_type_self_originated) {
+				if (pi->peer != bgp->peer_self)
+					continue;
+			}
 
 			if (!use_json && header) {
 				vty_out(vty,
@@ -12610,6 +12614,7 @@ DEFPY(show_ip_bgp, show_ip_bgp_cmd,
           |alias ALIAS_NAME\
           |A.B.C.D/M longer-prefixes\
           |X:X::X:X/M longer-prefixes\
+          |"BGP_SELF_ORIG_CMD_STR"\
           |detail-routes$detail_routes\
           ] [json$uj [detail$detail_json] | wide$wide]",
       SHOW_STR IP_STR BGP_STR BGP_INSTANCE_HELP_STR BGP_AFI_HELP_STR
@@ -12659,6 +12664,7 @@ DEFPY(show_ip_bgp, show_ip_bgp_cmd,
       "Display route and more specific routes\n"
       "IPv6 prefix\n"
       "Display route and more specific routes\n"
+      BGP_SELF_ORIG_HELP_STR
       "Display detailed version of all routes\n"
       JSON_STR
       "Display detailed version of JSON output\n"
@@ -12853,6 +12859,10 @@ DEFPY(show_ip_bgp, show_ip_bgp_cmd,
 		output_arg = &p;
 	}
 
+	/* self originated only */
+	if (argv_find(argv, argc, BGP_SELF_ORIG_CMD_STR, &idx))
+		sh_type = bgp_show_type_self_originated;
+
 	if (!all) {
 		/* show bgp: AFI_IP6, show ip bgp: AFI_IP */
 		if (community)
diff --git a/bgpd/bgp_route.h b/bgpd/bgp_route.h
index 452282926f..33255924ba 100644
--- a/bgpd/bgp_route.h
+++ b/bgpd/bgp_route.h
@@ -61,6 +61,7 @@ enum bgp_show_type {
 	bgp_show_type_detail,
 	bgp_show_type_rpki,
 	bgp_show_type_prefix_version,
+	bgp_show_type_self_originated,
 };
 
 enum bgp_show_adj_route_type {
diff --git a/bgpd/bgp_vty.h b/bgpd/bgp_vty.h
index 019789dff8..e3e3c0d884 100644
--- a/bgpd/bgp_vty.h
+++ b/bgpd/bgp_vty.h
@@ -43,6 +43,9 @@ struct bgp;
 	BGP_AF_MODIFIER_STR BGP_AF_MODIFIER_STR BGP_AF_MODIFIER_STR            \
 		BGP_AF_MODIFIER_STR BGP_AF_MODIFIER_STR
 
+#define BGP_SELF_ORIG_CMD_STR       "self-originate"
+#define BGP_SELF_ORIG_HELP_STR      "Display only self-originated routes\n"
+
 #define SHOW_GR_HEADER \
 	"Codes: GR - Graceful Restart," \
 	" * -  Inheriting Global GR Config,\n" \
diff --git a/doc/user/bgp.rst b/doc/user/bgp.rst
index b17442f641..dc0e96abd0 100644
--- a/doc/user/bgp.rst
+++ b/doc/user/bgp.rst
@@ -3887,6 +3887,10 @@ structure is extended with :clicmd:`show bgp [afi] [safi]`.
 
    EVPN prefixes can also be filtered by EVPN route type.
 
+.. clicmd:: show bgp l2vpn evpn route [detail] [type <ead|1|macip|2|multicast|3|es|4|prefix|5>] self-originate [json]
+
+   Display self-originated EVPN prefixes which can also be filtered by EVPN route type.
+
 .. clicmd:: show bgp vni <all|VNI> [vtep VTEP] [type <ead|1|macip|2|multicast|3>] [<detail|json>]
 
    Display per-VNI EVPN routing table in bgp. Filter route-type, vtep, or VNI.
@@ -4043,6 +4047,15 @@ structure is extended with :clicmd:`show bgp [afi] [safi]`.
 
    If the ``json`` option is specified, output is displayed in JSON format.
 
+.. clicmd:: show [ip] bgp [afi] [safi] [all] self-originate [wide|json]
+
+   Display self-originated routes.
+
+   If ``wide`` option is specified, then the prefix table's width is increased
+   to fully display the prefix and the nexthop.
+
+   If the ``json`` option is specified, output is displayed in JSON format.
+
 .. clicmd:: show [ip] bgp [afi] [safi] [all] neighbors A.B.C.D [advertised-routes|received-routes|filtered-routes] [<A.B.C.D/M|X:X::X:X/M> | detail] [json|wide]
 
    Display the routes advertised to a BGP neighbor or received routes