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-rw-r--r--src/vnet/mpls/mpls.h172
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diff --git a/src/vnet/mpls/mpls.h b/src/vnet/mpls/mpls.h
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+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef included_vnet_mpls_h
+#define included_vnet_mpls_h
+
+#include <vnet/vnet.h>
+#include <vnet/mpls/packet.h>
+#include <vnet/mpls/mpls_types.h>
+#include <vnet/ip/ip4_packet.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/fib/fib_node.h>
+#include <vnet/adj/adj.h>
+
+typedef enum {
+#define mpls_error(n,s) MPLS_ERROR_##n,
+#include <vnet/mpls/error.def>
+#undef mpls_error
+ MPLS_N_ERROR,
+} mpls_error_t;
+
+#define MPLS_FIB_DEFAULT_TABLE_ID 0
+
+/**
+ * Type exposure is to allow the DP fast/inlined access
+ */
+#define MPLS_FIB_KEY_SIZE 21
+#define MPLS_FIB_DB_SIZE (1 << (MPLS_FIB_KEY_SIZE-1))
+
+typedef struct mpls_fib_t_
+{
+ /**
+ * A hash table of entries. 21 bit key
+ * Hash table for reduced memory footprint
+ */
+ uword * mf_entries;
+
+ /**
+ * The load-balance indeices keyed by 21 bit label+eos bit.
+ * A flat array for maximum lookup performace.
+ */
+ index_t mf_lbs[MPLS_FIB_DB_SIZE];
+} mpls_fib_t;
+
+/**
+ * @brief Definition of a callback for receiving MPLS interface state change
+ * notifications
+ */
+typedef void (*mpls_interface_state_change_callback_t)(u32 sw_if_index,
+ u32 is_enable);
+
+typedef struct {
+ /* MPLS FIB index for each software interface */
+ u32 *fib_index_by_sw_if_index;
+
+ /** A pool of all the MPLS FIBs */
+ struct fib_table_t_ *fibs;
+
+ /** A hash table to lookup the mpls_fib by table ID */
+ uword *fib_index_by_table_id;
+
+ /* Feature arc indices */
+ u8 input_feature_arc_index;
+ u8 output_feature_arc_index;
+
+ /* IP4 enabled count by software interface */
+ u8 * mpls_enabled_by_sw_if_index;
+
+ /* convenience */
+ vlib_main_t * vlib_main;
+ vnet_main_t * vnet_main;
+} mpls_main_t;
+
+extern mpls_main_t mpls_main;
+
+extern clib_error_t * mpls_feature_init(vlib_main_t * vm);
+
+format_function_t format_mpls_protocol;
+format_function_t format_mpls_encap_index;
+
+format_function_t format_mpls_eos_bit;
+format_function_t format_mpls_unicast_header_net_byte_order;
+format_function_t format_mpls_unicast_label;
+format_function_t format_mpls_header;
+
+extern vlib_node_registration_t mpls_input_node;
+extern vlib_node_registration_t mpls_policy_encap_node;
+extern vlib_node_registration_t mpls_output_node;
+extern vlib_node_registration_t mpls_midchain_node;
+
+/* Parse mpls protocol as 0xXXXX or protocol name.
+ In either host or network byte order. */
+unformat_function_t unformat_mpls_protocol_host_byte_order;
+unformat_function_t unformat_mpls_protocol_net_byte_order;
+unformat_function_t unformat_mpls_label_net_byte_order;
+unformat_function_t unformat_mpls_unicast_label;
+
+/* Parse mpls header. */
+unformat_function_t unformat_mpls_header;
+unformat_function_t unformat_pg_mpls_header;
+
+void mpls_sw_interface_enable_disable (mpls_main_t * mm,
+ u32 sw_if_index,
+ u8 is_enable);
+
+u8 mpls_sw_interface_is_enabled (u32 sw_if_index);
+
+int mpls_fib_reset_labels (u32 fib_id);
+
+#define foreach_mpls_input_next \
+_(DROP, "error-drop") \
+_(LOOKUP, "mpls-lookup")
+
+typedef enum {
+#define _(s,n) MPLS_INPUT_NEXT_##s,
+ foreach_mpls_input_next
+#undef _
+ MPLS_INPUT_N_NEXT,
+} mpls_input_next_t;
+
+#define foreach_mpls_lookup_next \
+_(DROP, "error-drop") \
+_(IP4_INPUT, "ip4-input") \
+_(L2_OUTPUT, "l2-output")
+
+// FIXME remove.
+typedef enum {
+#define _(s,n) MPLS_LOOKUP_NEXT_##s,
+ foreach_mpls_lookup_next
+#undef _
+ MPLS_LOOKUP_N_NEXT,
+} mpls_lookup_next_t;
+
+#define foreach_mpls_output_next \
+_(DROP, "error-drop")
+
+typedef enum {
+#define _(s,n) MPLS_OUTPUT_NEXT_##s,
+ foreach_mpls_output_next
+#undef _
+ MPLS_OUTPUT_N_NEXT,
+} mpls_output_next_t;
+
+typedef struct {
+ u32 fib_index;
+ u32 entry_index;
+ u32 dest;
+ u32 s_bit;
+ u32 label;
+} show_mpls_fib_t;
+
+int
+mpls_dest_cmp(void * a1, void * a2);
+
+int
+mpls_fib_index_cmp(void * a1, void * a2);
+
+int
+mpls_label_cmp(void * a1, void * a2);
+
+#endif /* included_vnet_mpls_h */