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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 __FIB_ENTRY_SRC_H__
#define __FIB_ENTRY_SRC_H__
#include "fib_entry.h"
#include "fib_path_list.h"
#include "fib_internal.h"
/**
* Debug macro
*/
#ifdef FIB_DEBUG
#define FIB_ENTRY_DBG(_e, _fmt, _args...) \
{ \
u8*__tmp = NULL; \
__tmp = format(__tmp, "e:[%d:%U", \
fib_entry_get_index(_e), \
format_ip46_address, \
&_e->fe_prefix.fp_addr, \
IP46_TYPE_ANY); \
__tmp = format(__tmp, "/%d]:", \
_e->fe_prefix.fp_len); \
__tmp = format(__tmp, _fmt, ##_args); \
clib_warning("%s", __tmp); \
vec_free(__tmp); \
}
#else
#define FIB_ENTRY_DBG(_e, _fmt, _args...)
#endif
/**
* Source initialisation Function
*/
typedef void (*fib_entry_src_init_t)(fib_entry_src_t *src);
/**
* Source deinitialisation Function
*/
typedef void (*fib_entry_src_deinit_t)(fib_entry_src_t *src);
/**
* Source activation. Called when the source is the new best source on the entry.
* Return non-zero if the entry can now install, 0 otherwise
*/
typedef int (*fib_entry_src_activate_t)(fib_entry_src_t *src,
const fib_entry_t *fib_entry);
/**
* Source Deactivate.
* Called when the source is no longer best source on the entry
*/
typedef void (*fib_entry_src_deactivate_t)(fib_entry_src_t *src,
const fib_entry_t *fib_entry);
/**
* Source Add.
* Called when the source is added to the entry
*/
typedef void (*fib_entry_src_add_t)(fib_entry_src_t *src,
const fib_entry_t *entry,
fib_entry_flag_t flags,
dpo_proto_t proto,
const dpo_id_t *dpo);
/**
* Source Remove.
*/
typedef void (*fib_entry_src_remove_t)(fib_entry_src_t *src);
/**
* Result from a cover update/change
*/
typedef struct fib_entry_src_cover_res_t_ {
u16 install;
fib_node_bw_reason_flag_t bw_reason;
} fib_entry_src_cover_res_t;
/**
* Cover changed. the source should re-evaluate its cover.
*/
typedef fib_entry_src_cover_res_t (*fib_entry_src_cover_change_t)(
fib_entry_src_t *src,
const fib_entry_t *fib_entry);
/**
* Cover updated. The cover the source has, has updated (i.e. its forwarding)
* the source may need to re-evaluate.
*/
typedef fib_entry_src_cover_res_t (*fib_entry_src_cover_update_t)(
fib_entry_src_t *src,
const fib_entry_t *fib_entry);
/**
* Installed. Notification that the source is now installed as
* the entry's forwarding source.
*/
typedef void (*fib_entry_src_installed_t)(fib_entry_src_t *src,
const fib_entry_t *fib_entry);
/**
* format.
*/
typedef u8* (*fib_entry_src_format_t)(fib_entry_src_t *src,
u8* s);
/**
* Source path add
* the source is adding a new path
*/
typedef void (*fib_entry_src_path_add_t)(fib_entry_src_t *src,
const fib_entry_t *fib_entry,
fib_path_list_flags_t pl_flags,
const fib_route_path_t *path);
/**
* Source path remove
* the source is remoinvg a path
*/
typedef void (*fib_entry_src_path_remove_t)(fib_entry_src_t *src,
fib_path_list_flags_t pl_flags,
const fib_route_path_t *path);
/**
* Source path replace/swap
* the source is providing a new set of paths
*/
typedef void (*fib_entry_src_path_swap_t)(fib_entry_src_t *src,
const fib_entry_t *fib_entry,
fib_path_list_flags_t pl_flags,
const fib_route_path_t *path);
/**
* Set source specific opaque data
*/
typedef void (*fib_entry_src_set_data_t)(fib_entry_src_t *src,
const fib_entry_t *fib_entry,
const void *data);
/**
* Get source specific opaque data
*/
typedef const void* (*fib_entry_src_get_data_t)(fib_entry_src_t *src,
const fib_entry_t *fib_entry);
/**
* Virtual function table each FIB entry source will register
*/
typedef struct fib_entry_src_vft_t_ {
fib_entry_src_init_t fesv_init;
fib_entry_src_deinit_t fesv_deinit;
fib_entry_src_activate_t fesv_activate;
fib_entry_src_deactivate_t fesv_deactivate;
fib_entry_src_add_t fesv_add;
fib_entry_src_remove_t fesv_remove;
fib_entry_src_path_swap_t fesv_path_swap;
fib_entry_src_path_add_t fesv_path_add;
fib_entry_src_path_remove_t fesv_path_remove;
fib_entry_src_cover_change_t fesv_cover_change;
fib_entry_src_cover_update_t fesv_cover_update;
fib_entry_src_format_t fesv_format;
fib_entry_src_installed_t fesv_installed;
fib_entry_src_get_data_t fesv_get_data;
fib_entry_src_set_data_t fesv_set_data;
} fib_entry_src_vft_t;
#define FOR_EACH_SRC_ADDED(_entry, _src, _source, action) \
{ \
if (fib_entry_has_multiple_srcs(_entry)) \
{ \
vec_foreach(_src, _entry->fe_u_src.fe_srcs) \
{ \
if (_src->fes_flags & FIB_ENTRY_SRC_FLAG_ADDED) { \
_source = _src->fes_src; \
do { \
action; \
} while(0); \
} \
} \
} \
else \
{ \
_src = &_entry->fe_u_src.fe_src; \
if (_src->fes_flags & FIB_ENTRY_SRC_FLAG_ADDED) { \
_source = _src->fes_src; \
do { \
action; \
} while(0); \
} \
} \
}
#define FOR_EACH_SRC(_entry, _src, _source, action) \
{ \
if (fib_entry_has_multiple_srcs(_entry)) \
{ \
vec_foreach(_src, _entry->fe_u_src.fe_srcs) \
{ \
_source = _src->fes_src; \
do { \
action; \
} while(0); \
} \
} \
else \
{ \
_src = &_entry->fe_u_src.fe_src; \
_source = _src->fes_src; \
do { \
action; \
} while(0); \
} \
}
extern u8* fib_entry_src_format(fib_entry_t *entry,
fib_source_t source,
u8* s);
extern void fib_entry_src_register(fib_source_t source,
const fib_entry_src_vft_t *vft);
extern void fib_entry_src_action_init(fib_entry_t *entry,
fib_source_t source);
extern void fib_entry_src_action_deinit(fib_entry_t *fib_entry,
fib_source_t source);
extern fib_entry_src_cover_res_t fib_entry_src_action_cover_change(
fib_entry_t *entry,
fib_source_t source);
extern fib_entry_src_cover_res_t fib_entry_src_action_cover_update(
fib_entry_t *fib_entry,
fib_source_t source);
extern void fib_entry_src_action_activate(fib_entry_t *fib_entry,
fib_source_t source);
extern void fib_entry_src_action_deactivate(fib_entry_t *fib_entry,
fib_source_t source);
extern void fib_entry_src_action_reactivate(fib_entry_t *fib_entry,
fib_source_t source);
extern fib_entry_t* fib_entry_src_action_add(fib_entry_t *fib_entry,
fib_source_t source,
fib_entry_flag_t flags,
const dpo_id_t *dpo);
extern fib_entry_t* fib_entry_src_action_update(fib_entry_t *fib_entry,
fib_source_t source,
fib_entry_flag_t flags,
const dpo_id_t *dpo);
extern fib_entry_src_flag_t fib_entry_src_action_remove(fib_entry_t *fib_entry,
fib_source_t source);
extern void fib_entry_src_action_install(fib_entry_t *fib_entry,
fib_source_t source);
extern void fib_entry_src_action_uninstall(fib_entry_t *fib_entry);
extern fib_entry_t* fib_entry_src_action_path_add(fib_entry_t *fib_entry,
fib_source_t source,
fib_entry_flag_t flags,
const fib_route_path_t *path);
extern fib_entry_t* fib_entry_src_action_path_swap(fib_entry_t *fib_entry,
fib_source_t source,
fib_entry_flag_t flags,
const fib_route_path_t *path);
extern fib_entry_src_flag_t fib_entry_src_action_path_remove(fib_entry_t *fib_entry,
fib_source_t source,
const fib_route_path_t *path);
extern void fib_entry_src_action_installed(fib_entry_t *fib_entry,
fib_source_t source);
extern fib_forward_chain_type_t fib_entry_get_default_chain_type(
const fib_entry_t *fib_entry);
extern fib_entry_flag_t fib_entry_get_flags_i(const fib_entry_t *fib_entry);
extern fib_path_list_flags_t fib_entry_src_flags_2_path_list_flags(
fib_entry_flag_t eflags);
extern fib_forward_chain_type_t fib_entry_chain_type_fixup(const fib_entry_t *entry,
fib_forward_chain_type_t fct);
extern void fib_entry_src_mk_lb (fib_entry_t *fib_entry,
const fib_entry_src_t *esrc,
fib_forward_chain_type_t fct,
dpo_id_t *dpo_lb);
extern fib_protocol_t fib_entry_get_proto(const fib_entry_t * fib_entry);
extern dpo_proto_t fib_entry_get_dpo_proto(const fib_entry_t * fib_entry);
extern u32 fib_entry_has_multiple_srcs(const fib_entry_t * fib_entry);
/*
* Per-source registration. declared here so we save a separate .h file for each
*/
extern void fib_entry_src_default_register(void);
extern void fib_entry_src_rr_register(void);
extern void fib_entry_src_interface_register(void);
extern void fib_entry_src_default_route_register(void);
extern void fib_entry_src_special_register(void);
extern void fib_entry_src_api_register(void);
extern void fib_entry_src_adj_register(void);
extern void fib_entry_src_mpls_register(void);
extern void fib_entry_src_lisp_register(void);
extern void fib_entry_src_module_init(void);
#endif
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