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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
commit55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch)
tree33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/timesync/timesyncd-manager.h
parentInitial commit. (diff)
downloadsystemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz
systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/timesync/timesyncd-manager.h')
-rw-r--r--src/timesync/timesyncd-manager.h142
1 files changed, 142 insertions, 0 deletions
diff --git a/src/timesync/timesyncd-manager.h b/src/timesync/timesyncd-manager.h
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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);
+
+ 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 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);