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/*
* Copyright (c) 2017-2019 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.
*/
/**
* \file facelet.h
* \brief Facelet
*
* A facelet consists in partial information and annotations collected towards
* the contruction of the final face that will be sent to the forwarder.
*
* It might also consist in a pattern allowing the deletion of a group of face
* for instance.
*/
#ifndef FACEMGR_FACELET_H
#define FACEMGR_FACELET_H
#include <stdbool.h>
#include <hicn/ctrl/face.h>
#include <hicn/facemgr.h>
#define MAXSZ_FACELET 1024
/* NOTE: Any test should be sufficient */
#define IS_VALID_NETDEVICE(netdevice) ((netdevice.index != 0) && (netdevice.name[0] != '\0'))
typedef struct facelet_s facelet_t;
/* Facelet status */
#define foreach_facelet_status \
_(UNDEFINED) \
_(NEW) \
_(CLEAN) \
_(DIRTY) \
_(CONFLICT) \
_(DELETED) \
_(IGNORED) \
_(ERROR) \
_(N)
typedef enum {
#define _(x) FACELET_STATUS_ ## x,
foreach_facelet_status
#undef _
} facelet_status_t;
extern const char * facelet_status_str[];
/* Facelet attribute status */
/*
* We expect an attribute in the cache to be able to take any value but
* UNDEFINED and N, which facelet events should either be UNSET or CLEAN
*/
#define foreach_facelet_attr_status \
_(UNDEFINED, '?') \
_(UNSET, 'X') \
_(CLEAN, ' ') \
_(DIRTY, '*') \
_(PENDING, 'P') \
_(CONFLICT, '!') \
_(N, '-')
typedef enum {
#define _(x, y) FACELET_ATTR_STATUS_ ## x,
foreach_facelet_attr_status
#undef _
} facelet_attr_status_t;
extern const char * facelet_attr_status_str[];
extern const char * facelet_attr_status_str_short[];
/* Facelet attribute */
#define foreach_facelet_attr \
_(netdevice_type_t, netdevice_type) \
_(netdevice_t, netdevice) \
_(int, family) \
_(ip_address_t, local_addr) \
_(u16, local_port) \
_(ip_address_t, remote_addr) \
_(u16, remote_port) \
_(face_state_t, admin_state) \
_(face_state_t, state) \
_(facemgr_face_type_t, face_type)
#define foreach_facelet_event \
_(UNDEFINED) \
_(GET) \
_(CREATE) \
_(UPDATE) \
_(DELETE) \
_(SET_PARAMS) \
_(SET_UP) \
_(SET_DOWN) \
_(SET_TAGS) \
_(CLEAR_TAGS) \
_(ADD_TAG) \
_(REMOVE_TAG) \
_(N)
#define MAXSZ_EVENT__ 10
#define MAXSZ_EVENT_ MAXSZ_EVENT_ + 1
/**
* \brief Enumeration of the possible types of event
*/
typedef enum {
#define _(x) FACELET_EVENT_ ## x,
foreach_facelet_event
#undef _
} facelet_event_t;
extern const char * facelet_event_str[];
/**
* \brief Create a facelet.
*/
facelet_t * facelet_create();
facelet_t * facelet_create_from_netdevice(netdevice_t * netdevice);
int facelet_validate_face(const facelet_t * facelet);
facelet_t * facelet_create_from_face(face_t * face);
void facelet_free(facelet_t * facelet);
facelet_t * facelet_dup(const facelet_t * current_facelet);
int facelet_cmp(const facelet_t * f1, const facelet_t * f2);
/* NOTE: only clean attributes are matched */
bool facelet_match(const facelet_t * facelet, const facelet_t * facelet_match);
/**
* \brief Returns whether the specified facelet has all key attributes defined.
*
* Key attributes are netdevice and family. If both are present, this allows to
* uniquely identify a facelet, otherwise it is a 'wildcard' facelet
* specification and might match several facelets.
*/
bool facelet_has_key(const facelet_t * facelet);
#define FACELET_ACCESSORS_H(TYPE, NAME) \
bool facelet_has_ ## NAME(const facelet_t * facelet); \
facelet_attr_status_t facelet_get_ ## NAME ## _status(const facelet_t * facelet);\
int facelet_get_ ## NAME(const facelet_t * facelet, TYPE * NAME); \
int facelet_set_ ## NAME(facelet_t * facelet, TYPE NAME); \
int facelet_unset_ ## NAME(facelet_t * facelet);
#define _(TYPE, NAME) FACELET_ACCESSORS_H(TYPE, NAME)
foreach_facelet_attr
#undef _
int facelet_get_face(const facelet_t * facelet, face_t ** pface);
int facelet_merge(facelet_t * facelet, const facelet_t * facelet_to_merge);
facelet_status_t facelet_get_status(const facelet_t * facelet);
void facelet_set_status(facelet_t * facelet, facelet_status_t status);
void facelet_set_bj_done(facelet_t * facelet);
void facelet_unset_bj_done(facelet_t * facelet);
bool facelet_is_bj_done(const facelet_t * facelet);
void facelet_set_au_done(facelet_t * facelet);
bool facelet_is_au_done(const facelet_t * facelet);
facelet_event_t facelet_get_event(const facelet_t * facelet);
void facelet_set_event(facelet_t * facelet, facelet_event_t event);
int facelet_snprintf(char * buf, size_t size, facelet_t * facelet);
#define DUMP_FACELET(msg, facelet) do { \
char buf[MAXSZ_FACELET]; \
facelet_snprintf(buf, MAXSZ_FACELET, facelet); \
DEBUG("%s : %s", msg, buf); \
} while(0)
#endif /* FACEMGR_FACELET_H */
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