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/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
/***
This file is part of systemd.
Copyright 2014 Kay Sievers, Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include "sd-event.h"
#include "sd-network.h"
#include "sd-resolve.h"
#include "list.h"
#include "ratelimit.h"
#include "time-util.h"
typedef struct Manager Manager;
#include "timesyncd-server.h"
/*
* "A client MUST NOT under any conditions use a poll interval less
* than 15 seconds."
*/
#define NTP_POLL_INTERVAL_MIN_USEC (32 * USEC_PER_SEC)
#define NTP_POLL_INTERVAL_MAX_USEC (2048 * USEC_PER_SEC)
struct Manager {
sd_event *event;
sd_resolve *resolve;
LIST_HEAD(ServerName, system_servers);
LIST_HEAD(ServerName, link_servers);
LIST_HEAD(ServerName, fallback_servers);
bool have_fallbacks:1;
RateLimit ratelimit;
bool exhausted_servers;
/* network */
sd_event_source *network_event_source;
sd_network_monitor *network_monitor;
/* peer */
sd_resolve_query *resolve_query;
sd_event_source *event_receive;
ServerName *current_server_name;
ServerAddress *current_server_address;
int server_socket;
int missed_replies;
uint64_t packet_count;
sd_event_source *event_timeout;
bool good;
/* last sent packet */
struct timespec trans_time_mon;
struct timespec trans_time;
usec_t retry_interval;
bool pending;
/* poll timer */
sd_event_source *event_timer;
usec_t poll_interval_usec;
usec_t poll_interval_min_usec;
usec_t poll_interval_max_usec;
bool poll_resync;
/* history data */
struct {
double offset;
double delay;
} samples[8];
unsigned int samples_idx;
double samples_jitter;
usec_t max_root_distance_usec;
/* last change */
bool jumped;
bool sync;
int drift_ppm;
/* watch for time changes */
sd_event_source *event_clock_watch;
int clock_watch_fd;
/* Retry connections */
sd_event_source *event_retry;
/* RTC runs in local time, leave it alone */
bool rtc_local_time;
};
int manager_new(Manager **ret);
void manager_free(Manager *m);
DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
void manager_set_server_name(Manager *m, ServerName *n);
void manager_set_server_address(Manager *m, ServerAddress *a);
void manager_flush_server_names(Manager *m, ServerType t);
int manager_connect(Manager *m);
void manager_disconnect(Manager *m);
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