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/*
* Copyright (c) 2016 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 __MFIB_ENTRY_H__
#define __MFIB_ENTRY_H__
#include <vnet/fib/fib_node.h>
#include <vnet/mfib/mfib_types.h>
#include <vnet/mfib/mfib_itf.h>
#include <vnet/mfib/mfib_entry_delegate.h>
#include <vnet/ip/ip.h>
#include <vnet/dpo/dpo.h>
/**
* An entry in a FIB table.
*
* This entry represents a route added to the FIB that is stored
* in one of the FIB tables.
*/
typedef struct mfib_entry_t_ {
CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
/**
* Base class. The entry's node representation in the graph.
*/
fib_node_t mfe_node;
/**
* The prefix of the route
*/
mfib_prefix_t mfe_prefix;
/**
* The index of the FIB table this entry is in
*/
u32 mfe_fib_index;
/**
* A vector of sources contributing forwarding
*/
struct mfib_entry_src_t_ *mfe_srcs;
/**
* The path-list of which this entry is a child
*/
fib_node_index_t mfe_pl;
/**
* The sibling index on the path-list
*/
u32 mfe_sibling;
/**
* 2nd cache line has the members used in the data plane
*/
CLIB_CACHE_LINE_ALIGN_MARK(cacheline1);
/**
* The DPO used for forwarding; replicate, drop, etc..
*/
dpo_id_t mfe_rep;
/**
* Route flags
*/
mfib_entry_flags_t mfe_flags;
/**
* RPF-ID used when the packets ingress not from an interface
*/
fib_rpf_id_t mfe_rpf_id;
/**
* A hash table of interfaces
*/
mfib_itf_t *mfe_itfs;
/**
* A vector of delegates.
*/
mfib_entry_delegate_t *fe_delegates;
} mfib_entry_t;
/**
* Debug macro
*/
extern vlib_log_class_t mfib_entry_logger;
#define MFIB_ENTRY_DBG(_e, _fmt, _args...) \
{ \
vlib_log_debug(mfib_entry_logger, \
"e:[%d:%U]: " _fmt, \
mfib_entry_get_index(_e), \
format_mfib_prefix, \
&_e->mfe_prefix, \
##_args); \
}
#define MFIB_ENTRY_FORMAT_BRIEF (0x0)
#define MFIB_ENTRY_FORMAT_DETAIL (0x1)
#define MFIB_ENTRY_FORMAT_DETAIL2 (0x2)
extern u8 *format_mfib_entry(u8 * s, va_list * args);
extern fib_node_index_t mfib_entry_create(u32 fib_index,
mfib_source_t source,
const mfib_prefix_t *prefix,
fib_rpf_id_t rpf_id,
mfib_entry_flags_t entry_flags,
index_t repi);
extern int mfib_entry_update(fib_node_index_t fib_entry_index,
mfib_source_t source,
mfib_entry_flags_t entry_flags,
fib_rpf_id_t rpf_id,
index_t rep_dpo);
extern int mfib_entry_special_add(fib_node_index_t fib_entry_index,
mfib_source_t source,
mfib_entry_flags_t entry_flags,
fib_rpf_id_t rpf_id,
index_t rep_dpo);
extern void mfib_entry_path_update(fib_node_index_t fib_entry_index,
mfib_source_t source,
const fib_route_path_t *rpath);
extern int mfib_entry_path_remove(fib_node_index_t fib_entry_index,
mfib_source_t source,
const fib_route_path_t *rpath);
extern int mfib_entry_delete(fib_node_index_t mfib_entry_index,
mfib_source_t source);
extern int mfib_entry_cmp_for_sort(void *i1, void *i2);
extern u32 mfib_entry_child_add(fib_node_index_t mfib_entry_index,
fib_node_type_t type,
fib_node_index_t child_index);
extern void mfib_entry_child_remove(fib_node_index_t mfib_entry_index,
u32 sibling_index);
extern void mfib_entry_lock(fib_node_index_t fib_entry_index);
extern void mfib_entry_unlock(fib_node_index_t fib_entry_index);
extern const mfib_prefix_t *mfib_entry_get_prefix(fib_node_index_t fib_entry_index);
extern u32 mfib_entry_get_fib_index(fib_node_index_t fib_entry_index);
extern int mfib_entry_is_sourced(fib_node_index_t fib_entry_index,
mfib_source_t source);
extern int mfib_entry_is_host(fib_node_index_t fib_entry_index);
extern u32 mfib_entry_get_stats_index(fib_node_index_t fib_entry_index);
extern void mfib_entry_cover_changed(fib_node_index_t fib_entry_index);
extern void mfib_entry_cover_updated(fib_node_index_t fib_entry_index);
extern const dpo_id_t*mfib_entry_contribute_ip_forwarding(
fib_node_index_t mfib_entry_index);
/**
* Flags to control what is present in the replicate DPO returned when
* the entry contributes forwarding
*/
typedef enum mfib_entry_fwd_flags_t_
{
MFIB_ENTRY_FWD_FLAG_NONE,
/**
* Do not reutrn any local replications in the set
*/
MFIB_ENTRY_FWD_FLAG_NO_LOCAL,
} mfib_entry_fwd_flags_t;
extern void mfib_entry_contribute_forwarding(
fib_node_index_t mfib_entry_index,
fib_forward_chain_type_t type,
mfib_entry_fwd_flags_t flags,
dpo_id_t *dpo);
extern fib_route_path_t* mfib_entry_encode(fib_node_index_t fib_entry_index);
extern void mfib_entry_module_init(void);
extern mfib_entry_t *mfib_entry_pool;
static inline mfib_entry_t *
mfib_entry_get (fib_node_index_t index)
{
return (pool_elt_at_index(mfib_entry_pool, index));
}
static inline fib_node_index_t
mfib_entry_get_index (const mfib_entry_t *mfe)
{
return (mfe - mfib_entry_pool);
}
static inline mfib_itf_t *
mfib_entry_itf_find (mfib_itf_t *itfs,
u32 sw_if_index)
{
uword *p;
p = hash_get(itfs, sw_if_index);
if (NULL != p)
{
return (mfib_itf_get(p[0]));
}
return (NULL);
}
static inline mfib_itf_t *
mfib_entry_get_itf (const mfib_entry_t *mfe,
u32 sw_if_index)
{
return (mfib_entry_itf_find(mfe->mfe_itfs, sw_if_index));
}
#endif
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