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/*
* Copyright (c) 2021-2022 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 listener.c
* \brief Implementation of listener.
*/
#include <string.h>
#include <hicn/ctrl/api.h>
#include <hicn/ctrl/object.h>
#include <hicn/ctrl/objects/listener.h>
#include <hicn/util/log.h>
#include "../object_vft.h"
#include "../object_private.h"
#include "base.h"
bool hc_listener_is_local(const hc_listener_t *listener) {
return (strncmp(listener->interface_name, "lo", INTERFACE_LEN) == 0);
}
/* LISTENER VALIDATE */
int hc_listener_validate(const hc_listener_t *listener, bool allow_partial) {
// if a field is specified it should be valid
// then we allow different specification, by key or by attributes, if
// allow_partial
int has_id = 0;
int has_name = 0;
#if 0
int has_interface_name = 0;
#endif
int has_type = 0;
int has_family = 0;
int has_local_addr = 0;
int has_local_port = 0;
if (listener->id == ~0) {
ERROR("[hc_listener_validate] Invalid id specified");
return -1;
}
has_id = 1;
if (!isempty(listener->name)) {
if (!IS_VALID_NAME(listener->name)) {
ERROR("[hc_listener_validate] Invalid name specified");
return -1;
}
has_name = 1;
}
#if 0
if (!isempty(listener->interface_name)) {
if (!IS_VALID_INTERFACE_NAME(listener->interface_name)) {
ERROR("[hc_listener_validate] Invalid interface_name specified");
return -1;
}
has_interface_name = 1;
}
#endif
if (listener->type != FACE_TYPE_UNDEFINED) {
if (!IS_VALID_TYPE(listener->type)) {
ERROR("[hc_listener_validate] Invalid type specified");
return -1;
}
has_type = 1;
}
if (listener->family != AF_UNSPEC) {
if (!IS_VALID_FAMILY(listener->family)) {
ERROR("[hc_listener_validat] Invalid family specified");
return -1;
}
has_family = 1;
}
if (!hicn_ip_address_empty(&listener->local_addr)) {
if (!IS_VALID_ADDRESS(listener->local_addr)) {
ERROR("[hc_listener_validate] Invalid local_addr specified");
return -1;
}
has_local_addr = 1;
}
if (listener->local_port != 0) {
if (!IS_VALID_PORT(listener->local_port)) {
ERROR("[hc_listener_validate] Invalid local_port specified");
return -1;
}
has_local_port = 1;
}
if (allow_partial) {
if ((has_id || has_name) && !has_type && !has_family && !has_local_port &&
!has_local_port)
return 0;
else if (has_name && has_type && has_family && has_local_addr &&
has_local_port)
return 0;
else
return -1;
} else {
/* name and interface are optional */
if (has_id && has_type && has_family && has_local_addr && has_local_port)
return 0;
return -1;
}
}
int _hc_listener_validate(const hc_object_t *object, bool allow_partial) {
return hc_listener_validate(&object->listener, allow_partial);
}
/* LISTENER CMP */
int hc_listener_cmp(const hc_listener_t *l1, const hc_listener_t *l2) {
int rc;
rc = INT_CMP(l1->type, l2->type);
if (rc != 0) return rc;
rc = INT_CMP(l1->family, l2->family);
if (rc != 0) return rc;
if (!isempty(l1->interface_name) && !isempty(l2->interface_name)) {
rc = strncmp(l1->interface_name, l2->interface_name, INTERFACE_LEN);
if (rc != 0) return rc;
}
rc = hicn_ip_address_cmp(&l1->local_addr, &l2->local_addr);
if (rc != 0) return rc;
rc = INT_CMP(l1->local_port, l2->local_port);
if (rc != 0) return rc;
return 0;
}
int _hc_listener_cmp(const hc_object_t *object1, const hc_object_t *object2) {
return hc_listener_cmp(&object1->listener, &object2->listener);
}
/* LISTENER SNPRINTF */
/* /!\ Please update constants in header file upon changes */
int hc_listener_snprintf(char *s, size_t size, const hc_listener_t *listener) {
char local[MAXSZ_URL];
int rc;
rc = url_snprintf(local, MAXSZ_URL, &listener->local_addr,
listener->local_port);
if (rc >= MAXSZ_URL)
WARN("[hc_listener_snprintf] Unexpected truncation of URL string");
if (rc < 0) return rc;
return snprintf(s, size, "%s %s %s interface=%s", listener->name, local,
face_type_str(listener->type), listener->interface_name);
}
int _hc_listener_snprintf(char *s, size_t size, const hc_object_t *object) {
return hc_listener_snprintf(s, size, &object->listener);
}
/* OPERATIONS */
int hc_listener_create(hc_sock_t *s, hc_listener_t *listener) {
hc_object_t object;
memset(&object, 0, sizeof(hc_object_t));
object.listener = *listener;
return hc_execute(s, ACTION_CREATE, OBJECT_TYPE_LISTENER, &object, NULL);
}
int hc_listener_get(hc_sock_t *s, hc_listener_t *listener, hc_data_t **pdata) {
hc_object_t object;
memset(&object, 0, sizeof(hc_object_t));
object.listener = *listener;
return hc_execute(s, ACTION_GET, OBJECT_TYPE_LISTENER, &object, pdata);
}
int hc_listener_delete(hc_sock_t *s, hc_listener_t *listener) {
hc_object_t object;
memset(&object, 0, sizeof(hc_object_t));
object.listener = *listener;
return hc_execute(s, ACTION_DELETE, OBJECT_TYPE_LISTENER, &object, NULL);
}
int hc_listener_list(hc_sock_t *s, hc_data_t **pdata) {
return hc_execute(s, ACTION_LIST, OBJECT_TYPE_LISTENER, NULL, pdata);
}
GENERATE_FIND(listener);
DECLARE_OBJECT_OPS(OBJECT_TYPE_LISTENER, listener);
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