zebra: start pseudowire support

Signed-off-by: Mark Stapp <mjs@voltanet.io>

zebra/zebra_dplane.c

@@ -101,6 +101,23 @@ struct dplane_route_info {
 
 };
 
+/*
+ * Pseudowire info for the dataplane
+ */
+struct dplane_pw_info {
+	char ifname[IF_NAMESIZE];
+	ifindex_t ifindex;
+	int type;
+	int af;
+	int status;
+	uint32_t flags;
+	union g_addr nexthop;
+	mpls_label_t local_label;
+	mpls_label_t remote_label;
+
+	union pw_protocol_fields fields;
+};
+
 /*
  * The context block used to exchange info about route updates across
  * the boundary between the zebra main context (and pthread) and the
@@ -136,6 +153,7 @@ struct zebra_dplane_ctx {
 	union {
 		struct dplane_route_info rinfo;
 		zebra_lsp_t lsp;
+		struct dplane_pw_info pw;
 	} u;
 
 	/* Namespace info, used especially for netlink kernel communication */
@@ -735,6 +753,71 @@ uint32_t dplane_ctx_get_lsp_num_ecmp(const struct zebra_dplane_ctx *ctx)
 	return ctx->u.lsp.num_ecmp;
 }
 
+const char *dplane_ctx_get_pw_ifname(const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.pw.ifname;
+}
+
+mpls_label_t dplane_ctx_get_pw_local_label(const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.pw.local_label;
+}
+
+mpls_label_t dplane_ctx_get_pw_remote_label(const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.pw.remote_label;
+}
+
+int dplane_ctx_get_pw_type(const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.pw.type;
+}
+
+int dplane_ctx_get_pw_af(const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.pw.af;
+}
+
+uint32_t dplane_ctx_get_pw_flags(const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.pw.flags;
+}
+
+int dplane_ctx_get_pw_status(const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.pw.status;
+}
+
+const union g_addr *dplane_ctx_get_pw_nexthop(
+	const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return &(ctx->u.pw.nexthop);
+}
+
+const union pw_protocol_fields *dplane_ctx_get_pw_proto(
+	const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return &(ctx->u.pw.fields);
+}
+
 /*
  * End of dplane context accessors
  */

zebra/zebra_dplane.h

@@ -203,6 +203,19 @@ zebra_nhlfe_t *dplane_ctx_get_nhlfe(struct zebra_dplane_ctx *ctx);
 zebra_nhlfe_t *dplane_ctx_get_best_nhlfe(struct zebra_dplane_ctx *ctx);
 uint32_t dplane_ctx_get_lsp_num_ecmp(const struct zebra_dplane_ctx *ctx);
 
+/* Accessors for pseudowire information */
+const char *dplane_ctx_get_pw_ifname(const struct zebra_dplane_ctx *ctx);
+mpls_label_t dplane_ctx_get_pw_local_label(const struct zebra_dplane_ctx *ctx);
+mpls_label_t dplane_ctx_get_pw_remote_label(const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_get_pw_type(const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_get_pw_af(const struct zebra_dplane_ctx *ctx);
+uint32_t dplane_ctx_get_pw_flags(const struct zebra_dplane_ctx *ctx);
+int dplane_ctx_get_pw_status(const struct zebra_dplane_ctx *ctx);
+const union g_addr *dplane_ctx_get_pw_nexthop(
+	const struct zebra_dplane_ctx *ctx);
+const union pw_protocol_fields *dplane_ctx_get_pw_proto(
+	const struct zebra_dplane_ctx *ctx);
+
 /* Namespace info - esp. for netlink communication */
 const struct zebra_dplane_info *dplane_ctx_get_ns(
 	const struct zebra_dplane_ctx *ctx);