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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <sys/timex.h>
#include "sd-bus.h"
#include "sd-event.h"
#include "sd-network.h"
#include "sd-resolve.h"
#include "hashmap.h"
#include "list.h"
#include "ratelimit.h"
#include "time-util.h"
#include "timesyncd-ntp-message.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)
#define NTP_RETRY_INTERVAL_MIN_USEC (15 * USEC_PER_SEC)
#define NTP_RETRY_INTERVAL_MAX_USEC (6 * 60 * USEC_PER_SEC) /* 6 minutes */
#define DEFAULT_CONNECTION_RETRY_USEC (30 * USEC_PER_SEC)
#define DEFAULT_SAVE_TIME_INTERVAL_USEC (60 * USEC_PER_SEC)
#define STATE_DIR "/var/lib/systemd/timesync"
#define CLOCK_FILE STATE_DIR "/clock"
struct Manager {
sd_bus *bus;
sd_event *event;
sd_resolve *resolve;
LIST_HEAD(ServerName, system_servers);
LIST_HEAD(ServerName, link_servers);
LIST_HEAD(ServerName, runtime_servers);
LIST_HEAD(ServerName, fallback_servers);
RateLimit ratelimit;
bool exhausted_servers;
bool have_fallbacks;
/* 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 talking;
/* PolicyKit */
Hashmap *polkit_registry;
/* last sent packet */
struct timespec trans_time_mon;
struct timespec trans_time;
struct ntp_ts request_nonce;
usec_t retry_interval;
usec_t connection_retry_usec;
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 samples_idx;
double samples_jitter;
usec_t root_distance_max_usec;
/* last change */
bool jumped;
int64_t drift_freq;
/* watch for time changes */
sd_event_source *event_clock_watch;
/* Retry connections */
sd_event_source *event_retry;
/* RTC runs in local time, leave it alone */
bool rtc_local_time;
/* NTP response */
struct ntp_msg ntpmsg;
struct timespec origin_time, dest_time;
bool spike;
/* Indicates whether we ever managed to set the local clock from NTP */
bool synchronized;
/* save time event */
sd_event_source *event_save_time;
usec_t save_time_interval_usec;
bool save_on_exit;
/* Used to coalesce bus PropertiesChanged events */
sd_event_source *deferred_ntp_server_event_source;
unsigned ntp_server_change_mask;
};
int manager_new(Manager **ret);
Manager* 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);
void manager_flush_runtime_servers(Manager *m);
int manager_connect(Manager *m);
void manager_disconnect(Manager *m);
bool manager_is_connected(Manager *m);
int manager_setup_save_time_event(Manager *m);
int bus_manager_emit_ntp_server_changed(Manager *m);
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