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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 */
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