lib, sharpd, zebra: Add new enum for lsp type and pass it through.

Add the ability to pass the lsp owner type through the zapi
and in addition add a new label type for the sharp protocol
for testing.

Finally modify zebra_mpls.h to not have defaults specified
for the enum.  That way when we add a new LSP type the
compile fails and the person doing the addition knows
where he has to touch shit.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

lib/mpls.h

@@ -115,7 +115,8 @@ enum lsp_types_t {
 	ZEBRA_LSP_STATIC = 1, /* Static LSP. */
 	ZEBRA_LSP_LDP = 2,    /* LDP LSP. */
 	ZEBRA_LSP_BGP = 3,    /* BGP LSP. */
-	ZEBRA_LSP_SR = 4      /* Segment Routing LSP. */
+	ZEBRA_LSP_SR = 4,     /* Segment Routing LSP. */
+	ZEBRA_LSP_SHARP = 5,  /* Identifier for test protocol */
 };
 
 /* Functions for basic label operations. */

lib/zclient.c

@@ -364,7 +364,7 @@ static int zebra_hello_send(struct zclient *zclient)
 }
 
 void zclient_send_vrf_label(struct zclient *zclient, vrf_id_t vrf_id,
-			    mpls_label_t label)
+			    mpls_label_t label, enum lsp_types_t ltype)
 {
 	struct stream *s;
 
@@ -373,6 +373,7 @@ void zclient_send_vrf_label(struct zclient *zclient, vrf_id_t vrf_id,
 
 	zclient_create_header(s, ZEBRA_VRF_LABEL, vrf_id);
 	stream_putl(s, label);
+	stream_putc(s, ltype);
 	stream_putw_at(s, 0, stream_get_endp(s));
 	zclient_send_message(zclient);
 }

lib/zclient.h

@@ -392,7 +392,7 @@ extern void redist_del_instance(struct redist_proto *, u_short);
  * operation.
  */
 extern void zclient_send_vrf_label(struct zclient *zclient, vrf_id_t vrf_id,
-				   mpls_label_t label);
+				   mpls_label_t label, enum lsp_types_t ltype);
 
 extern void zclient_send_reg_requests(struct zclient *, vrf_id_t);
 extern void zclient_send_dereg_requests(struct zclient *, vrf_id_t);

sharpd/sharp_zebra.c

@@ -154,7 +154,7 @@ static void zebra_connected(struct zclient *zclient)
 
 void vrf_label_add(vrf_id_t vrf_id, mpls_label_t label)
 {
-	zclient_send_vrf_label(zclient, vrf_id, label);
+	zclient_send_vrf_label(zclient, vrf_id, label, ZEBRA_LSP_SHARP);
 }
 
 void route_add(struct prefix *p, struct nexthop *nh)

zebra/zebra_mpls.h

@@ -428,9 +428,19 @@ static inline u_char lsp_distance(enum lsp_types_t type)
 		return (route_distance(ZEBRA_ROUTE_LDP));
 	case ZEBRA_LSP_BGP:
 		return (route_distance(ZEBRA_ROUTE_BGP));
-	default:
+	case ZEBRA_LSP_NONE:
+	case ZEBRA_LSP_SHARP:
+	case ZEBRA_LSP_SR:
 		return 150;
 	}
+
+	/*
+	 * For some reason certain compilers do not believe
+	 * that all the cases have been handled.  And
+	 * WTF does this work differently than when I removed
+	 * the default case????
+	 */
+	return 150;
 }
 
 /*
@@ -444,6 +454,8 @@ static inline enum lsp_types_t lsp_type_from_re_type(int re_type)
 		return ZEBRA_LSP_STATIC;
 	case ZEBRA_ROUTE_BGP:
 		return ZEBRA_LSP_BGP;
+	case ZEBRA_ROUTE_SHARP:
+		return ZEBRA_LSP_SHARP;
 	default:
 		return ZEBRA_LSP_NONE;
 	}
@@ -464,9 +476,18 @@ static inline int re_type_from_lsp_type(enum lsp_types_t lsp_type)
 	case ZEBRA_LSP_SR:
 		return ZEBRA_ROUTE_OSPF;
 	case ZEBRA_LSP_NONE:
-	default:
 		return ZEBRA_ROUTE_KERNEL;
+	case ZEBRA_LSP_SHARP:
+		return ZEBRA_ROUTE_SHARP;
 	}
+
+	/*
+	 * For some reason certain compilers do not believe
+	 * that all the cases have been handled.  And
+	 * WTF does this work differently than when I removed
+	 * the default case????
+	 */
+	return ZEBRA_ROUTE_KERNEL;
 }
 
 /* NHLFE type as printable string. */
@@ -481,9 +502,19 @@ static inline const char *nhlfe_type2str(enum lsp_types_t lsp_type)
 		return "BGP";
 	case ZEBRA_LSP_SR:
 		return "SR";
-	default:
+	case ZEBRA_LSP_SHARP:
+		return "SHARP";
+	case ZEBRA_LSP_NONE:
 		return "Unknown";
 	}
+
+	/*
+	 * For some reason certain compilers do not believe
+	 * that all the cases have been handled.  And
+	 * WTF does this work differently than when I removed
+	 * the default case????
+	 */
+	return "Unknown";
 }
 
 static inline void mpls_mark_lsps_for_processing(struct zebra_vrf *zvrf)

zebra/zserv.c

@@ -2493,16 +2493,17 @@ static void zread_vrf_label(struct zserv *client,
 	mpls_label_t nlabel;
 	struct stream *s;
 	struct zebra_vrf *def_zvrf;
+	enum lsp_types_t ltype;
 
 	s = client->ibuf;
 	STREAM_GETL(s, nlabel);
-
 	if (nlabel == zvrf->label) {
 		/*
 		 * Nothing to do here move along
 		 */
 		return;
 	}
+	STREAM_GETC(s, ltype);
 
 	if (zvrf->vrf->vrf_id != VRF_DEFAULT)
 		ifp = if_lookup_by_name(zvrf->vrf->name, zvrf->vrf->vrf_id);
@@ -2518,13 +2519,12 @@ static void zread_vrf_label(struct zserv *client,
 	def_zvrf = zebra_vrf_lookup_by_id(VRF_DEFAULT);
 
 	if (zvrf->label != MPLS_LABEL_IPV4_EXPLICIT_NULL)
-		mpls_lsp_uninstall(def_zvrf, ZEBRA_LSP_STATIC,
+		mpls_lsp_uninstall(def_zvrf, ltype, zvrf->label,
-				   zvrf->label, NEXTHOP_TYPE_IFINDEX,
+				   NEXTHOP_TYPE_IFINDEX, NULL, ifp->ifindex);
-				   NULL, ifp->ifindex);
 
 	if (nlabel != MPLS_LABEL_IPV4_EXPLICIT_NULL)
-		mpls_lsp_install(def_zvrf, ZEBRA_LSP_STATIC, nlabel,
+		mpls_lsp_install(def_zvrf, ltype, nlabel, MPLS_LABEL_IMPLICIT_NULL,
-				 MPLS_LABEL_IMPLICIT_NULL, NEXTHOP_TYPE_IFINDEX, NULL, ifp->ifindex);
+				 NEXTHOP_TYPE_IFINDEX, NULL, ifp->ifindex);
 
 	zvrf->label = nlabel;
 stream_failure: