d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

24882e06c135584f16f31ba8a00fecde8b7f6fadLennart Poettering#include <stdlib.h>

24882e06c135584f16f31ba8a00fecde8b7f6fadLennart Poettering#include <errno.h>

24882e06c135584f16f31ba8a00fecde8b7f6fadLennart Poettering#include <fcntl.h>

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#include <unistd.h>

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#include <string.h>

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#include <time.h>

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#include <math.h>

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include <arpa/inet.h>

24882e06c135584f16f31ba8a00fecde8b7f6fadLennart Poettering#include <netinet/in.h>

b4bbcaa9c44260e88402cb8f9a5fb8ac7f35e123Thomas Hindoe Paaboel Andersen#include <netinet/ip.h>

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#include <sys/timerfd.h>

74df0fca09b3c31ed19e14ba80f996fdff772417Lennart Poettering#include <sys/timex.h>

74df0fca09b3c31ed19e14ba80f996fdff772417Lennart Poettering#include <sys/socket.h>

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#include <resolv.h>

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#include <sys/prctl.h>

b5efdb8af40ea759a1ea584c1bc44ecc81dd00ceLennart Poettering#include <sys/types.h>

430f0182b72373145c839dbfe99d2382855cb8f8Lennart Poettering#include <grp.h>

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include "missing.h"

a09561746f15b84da9471b5c4be74e53d19e4f3fLennart Poettering#include "util.h"

0dec689b098cf62b948d43dc78bde859665056ecTom Gundersen#include "sparse-endian.h"

3ffd4af22052963e7a29431721ee204e634bea75Lennart Poettering#include "log.h"

33d52ab92f2f0bfd706e6f343d172618d1e03f3dLennart Poettering#include "socket-util.h"

958b66ea16deddd794b3a52643bd44633e165eadLennart Poettering#include "list.h"

f4f15635ec05293ffcc83a5b39f624bbabbd8fd0Lennart Poettering#include "ratelimit.h"

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#include "strv.h"

958b66ea16deddd794b3a52643bd44633e165eadLennart Poettering#include "conf-parser.h"

afc5dbf37fd2399d37976388d9dd9ab470ecf446Lennart Poettering#include "sd-daemon.h"

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#include "event-util.h"

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#include "network-util.h"

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include "clock-util.h"

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include "capability.h"

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#include "mkdir.h"

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include "timesyncd-conf.h"

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#include "timesyncd-manager.h"

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

3ffd4af22052963e7a29431721ee204e634bea75Lennart Poettering#define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1)

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#ifndef ADJ_SETOFFSET

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#define ADJ_SETOFFSET 0x0100 /* add 'time' to current time */

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#endif

6bedfcbb2970e06a4d3280c8fb62083d252ede73Lennart Poettering

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#define NTP_ACCURACY_SEC 0.2

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#define NTP_POLL_INTERVAL_MIN_SEC 32

4a0b58c4a30ecaa61202f845ed86f75b36370cd0Lennart Poettering#define NTP_POLL_INTERVAL_MAX_SEC 2048

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

e150e82097211f09b911c7784a89ef9efed713caMichał Bartoszkiewicz#define NTP_MAX_ADJUST 0.4

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#define NTP_LEAP_PLUSSEC 1

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering#define NTP_LEAP_MINUSSEC 2

e22aa3d3284709234f086ebebc13a905a295b7a7Lennart Poettering#define NTP_LEAP_NOTINSYNC 3

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#define NTP_MODE_CLIENT 3

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#define NTP_MODE_SERVER 4

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#define NTP_FIELD_LEAP(f) (((f) >> 6) & 3)

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#define NTP_FIELD_VERSION(f) (((f) >> 3) & 7)

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#define NTP_FIELD_MODE(f) ((f) & 7)

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#define NTP_FIELD(l, v, m) (((l) << 6) | ((v) << 3) | (m))

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

7fd1b19bc9e9f5574f2877936b8ac267c7706947Harald Hoyer#define OFFSET_1900_1970 2208988800UL

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#define RETRY_USEC (30*USEC_PER_SEC)

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#define RATELIMIT_INTERVAL_USEC (10*USEC_PER_SEC)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek#define RATELIMIT_BURST 10

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering#define TIMEOUT_USEC (10*USEC_PER_SEC)

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poetteringstruct ntp_ts {

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering be32_t sec;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek be32_t frac;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering} _packed_;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poetteringstruct ntp_ts_short {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek be16_t sec;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering be16_t frac;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering} _packed_;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poetteringstruct ntp_msg {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek uint8_t field;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek uint8_t stratum;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering int8_t poll;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek int8_t precision;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering struct ntp_ts_short root_delay;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct ntp_ts_short root_dispersion;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek char refid[4];

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering struct ntp_ts reference_time;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct ntp_ts origin_time;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct ntp_ts recv_time;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering struct ntp_ts trans_time;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek} _packed_;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int manager_arm_timer(Manager *m, usec_t next);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int manager_clock_watch_setup(Manager *m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic double ntp_ts_to_d(const struct ntp_ts *ts) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return be32toh(ts->sec) + ((double)be32toh(ts->frac) / UINT_MAX);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poetteringstatic double ts_to_d(const struct timespec *ts) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return ts->tv_sec + (1.0e-9 * ts->tv_nsec);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering}

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic double tv_to_d(const struct timeval *tv) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return tv->tv_sec + (1.0e-6 * tv->tv_usec);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic double square(double d) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return d * d;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering}

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poetteringstatic int manager_timeout(sd_event_source *source, usec_t usec, void *userdata) {

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering _cleanup_free_ char *pretty = NULL;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering Manager *m = userdata;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(m);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering assert(m->current_server_name);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering assert(m->current_server_address);

348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering server_address_pretty(m->current_server_address, &pretty);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering log_info("Timed out waiting for reply from %s (%s).", strna(pretty), m->current_server_name->string);

348ced909724a1331b85d57aede80a102a00e428Zbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering return manager_connect(m);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering}

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int manager_send_request(Manager *m) {

670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek _cleanup_free_ char *pretty = NULL;

670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek struct ntp_msg ntpmsg = {

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering /*

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering .field = NTP_FIELD(0, 4, NTP_MODE_CLIENT),

670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek };

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering ssize_t len;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering int r;

670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering assert(m);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering assert(m->current_server_name);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering assert(m->current_server_address);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering m->event_timeout = sd_event_source_unref(m->event_timeout);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering /*

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering assert_se(clock_gettime(clock_boottime_or_monotonic(), &m->trans_time_mon) >= 0);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering assert_se(clock_gettime(CLOCK_REALTIME, &m->trans_time) >= 0);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering ntpmsg.trans_time.sec = htobe32(m->trans_time.tv_sec + OFFSET_1900_1970);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering ntpmsg.trans_time.frac = htobe32(m->trans_time.tv_nsec);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering server_address_pretty(m->current_server_address, &pretty);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering len = sendto(m->server_socket, &ntpmsg, sizeof(ntpmsg), MSG_DONTWAIT, &m->current_server_address->sockaddr.sa, m->current_server_address->socklen);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering if (len == sizeof(ntpmsg)) {

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering m->pending = true;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering log_debug("Sent NTP request to %s (%s).", strna(pretty), m->current_server_name->string);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering } else {

670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek log_debug("Sending NTP request to %s (%s) failed: %m", strna(pretty), m->current_server_name->string);

670b110c3b59dfa335ac43065b2038400d1d04a9Zbigniew Jędrzejewski-Szmek return manager_connect(m);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* re-arm timer with increasing timeout, in case the packets never arrive back */

5c3bde3fa8613e09e694198862ea9038566af422Zbigniew Jędrzejewski-Szmek if (m->retry_interval > 0) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (m->retry_interval < NTP_POLL_INTERVAL_MAX_SEC * USEC_PER_SEC)

5c3bde3fa8613e09e694198862ea9038566af422Zbigniew Jędrzejewski-Szmek m->retry_interval *= 2;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } else

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->retry_interval = NTP_POLL_INTERVAL_MIN_SEC * USEC_PER_SEC;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = manager_arm_timer(m, m->retry_interval);

34c10968cbe3b5591b3c0ce225b8694edd9709d0Lennart Poettering if (r < 0) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to rearm timer: %s", strerror(-r));

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return r;

5c3bde3fa8613e09e694198862ea9038566af422Zbigniew Jędrzejewski-Szmek }

5c3bde3fa8613e09e694198862ea9038566af422Zbigniew Jędrzejewski-Szmek

5c3bde3fa8613e09e694198862ea9038566af422Zbigniew Jędrzejewski-Szmek r = sd_event_add_time(

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->event,

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek &m->event_timeout,

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek clock_boottime_or_monotonic(),

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek now(clock_boottime_or_monotonic()) + TIMEOUT_USEC, 0,

ed375bebf46c1251f4baa170b39ee93761dbdb19Zbigniew Jędrzejewski-Szmek manager_timeout, m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (r < 0) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to arm timeout timer: %s", strerror(-r));

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return r;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return 0;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int manager_timer(sd_event_source *source, usec_t usec, void *userdata) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek Manager *m = userdata;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return manager_send_request(m);

f7dc3ab9f43b67abcbd34062b9352ab42debec49Lennart Poettering}

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int manager_arm_timer(Manager *m, usec_t next) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek int r;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(m->event_receive);

4a0b58c4a30ecaa61202f845ed86f75b36370cd0Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (next == 0) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->event_timer = sd_event_source_unref(m->event_timer);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return 0;

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek }

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (m->event_timer) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_source_set_time(m->event_timer, now(clock_boottime_or_monotonic()) + next);

43cf8388ea4ffed1801468d4b650d6e48eefce9eMichal Schmidt if (r < 0)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return r;

43cf8388ea4ffed1801468d4b650d6e48eefce9eMichal Schmidt

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return sd_event_source_set_enabled(m->event_timer, SD_EVENT_ONESHOT);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return sd_event_add_time(

cbd671772c9ce053a7050ddd29de170eb9efac7eZbigniew Jędrzejewski-Szmek m->event,

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek &m->event_timer,

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek clock_boottime_or_monotonic(),

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek now(clock_boottime_or_monotonic()) + next, 0,

5c3bde3fa8613e09e694198862ea9038566af422Zbigniew Jędrzejewski-Szmek manager_timer, m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

4a0b58c4a30ecaa61202f845ed86f75b36370cd0Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int manager_clock_watch(sd_event_source *source, int fd, uint32_t revents, void *userdata) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek Manager *m = userdata;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* rearm timer */

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek manager_clock_watch_setup(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering /* skip our own jumps */

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering if (m->jumped) {

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering m->jumped = false;

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering return 0;

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering }

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering /* resync */

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek log_info("System time changed. Resyncing.");

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek m->poll_resync = true;

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek return manager_send_request(m);

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek}

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmekstatic int manager_clock_watch_setup(Manager *m) {

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering struct itimerspec its = {

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek .it_value.tv_sec = TIME_T_MAX

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering };

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek

5c3bde3fa8613e09e694198862ea9038566af422Zbigniew Jędrzejewski-Szmek int r;

2678031a179a9b91fc799f8ef951a548c66c4b49Lennart Poettering

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek assert(m);

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek m->event_clock_watch = sd_event_source_unref(m->event_clock_watch);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek safe_close(m->clock_watch_fd);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->clock_watch_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (m->clock_watch_fd < 0) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to create timerfd: %m");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return -errno;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering if (timerfd_settime(m->clock_watch_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) {

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering log_error("Failed to set up timerfd: %m");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return -errno;

43cf8388ea4ffed1801468d4b650d6e48eefce9eMichal Schmidt }

4a0b58c4a30ecaa61202f845ed86f75b36370cd0Lennart Poettering

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek r = sd_event_add_io(m->event, &m->event_clock_watch, m->clock_watch_fd, EPOLLIN, manager_clock_watch, m);

43cf8388ea4ffed1801468d4b650d6e48eefce9eMichal Schmidt if (r < 0) {

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek log_error("Failed to create clock watch event source: %s", strerror(-r));

fc55baee9964a118afbddbf82b8e667a0ad80b99Zbigniew Jędrzejewski-Szmek return r;

43cf8388ea4ffed1801468d4b650d6e48eefce9eMichal Schmidt }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return 0;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchukstatic int manager_adjust_clock(Manager *m, double offset, int leap_sec) {

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk struct timex tmx = {};

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk int r;

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk assert(m);

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk /*

65c1d46b0923771955519329160a1e4c7cd027b0Lennart Poettering if (fabs(offset) < NTP_MAX_ADJUST) {

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk tmx.modes = ADJ_STATUS | ADJ_NANO | ADJ_OFFSET | ADJ_TIMECONST | ADJ_MAXERROR | ADJ_ESTERROR;

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk tmx.status = STA_PLL;

65089b82401cd395786a7987c470056ff3f01151Lennart Poettering tmx.offset = offset * NSEC_PER_SEC;

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk tmx.constant = log2i(m->poll_interval_usec / USEC_PER_SEC) - 4;

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk tmx.maxerror = 0;

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering tmx.esterror = 0;

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering log_debug(" adjust (slew): %+.3f sec\n", offset);

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering } else {

da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt tmx.modes = ADJ_STATUS | ADJ_NANO | ADJ_SETOFFSET;

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk /* ADJ_NANO uses nanoseconds in the microseconds field */

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk tmx.time.tv_sec = (long)offset;

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk tmx.time.tv_usec = (offset - tmx.time.tv_sec) * NSEC_PER_SEC;

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering /* the kernel expects -0.3s as {-1, 7000.000.000} */

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering if (tmx.time.tv_usec < 0) {

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering tmx.time.tv_sec -= 1;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering tmx.time.tv_usec += NSEC_PER_SEC;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering }

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering m->jumped = true;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering log_debug(" adjust (jump): %+.3f sec\n", offset);

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering }

ea69bd41c5923f4f278a09bb7d8cb1abcfa122e1Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering /*

63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek if (m->rtc_local_time)

63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek tmx.status |= STA_UNSYNC;

63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering switch (leap_sec) {

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering case 1:

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering tmx.status |= STA_INS;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering break;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering case -1:

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering tmx.status |= STA_DEL;

63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek break;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering }

63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek

63c8666b824e8762ffb73647e1caee165dfbc868Zbigniew Jędrzejewski-Szmek r = clock_adjtime(CLOCK_REALTIME, &tmx);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering if (r < 0)

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering return r;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek touch("/var/lib/systemd/clock");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->drift_ppm = tmx.freq / 65536;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering log_debug(" status : %04i %s\n"

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering " time now : %li.%03llu\n"

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek " constant : %li\n"

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering " offset : %+.3f sec\n"

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering " freq offset : %+li (%i ppm)\n",

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering tmx.status, tmx.status & STA_UNSYNC ? "unsync" : "sync",

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek tmx.time.tv_sec, (unsigned long long) (tmx.time.tv_usec / NSEC_PER_MSEC),

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering tmx.constant,

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek (double)tmx.offset / NSEC_PER_SEC,

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek tmx.freq, m->drift_ppm);

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering return 0;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering}

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poetteringstatic bool manager_sample_spike_detection(Manager *m, double offset, double delay) {

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering unsigned int i, idx_cur, idx_new, idx_min;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering double jitter;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering double j;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering assert(m);

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering m->packet_count++;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering /* ignore initial sample */

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering if (m->packet_count == 1)

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering return false;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering /* store the current data in our samples array */

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering idx_cur = m->samples_idx;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering idx_new = (idx_cur + 1) % ELEMENTSOF(m->samples);

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering m->samples_idx = idx_new;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering m->samples[idx_new].offset = offset;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering m->samples[idx_new].delay = delay;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering /* calculate new jitter value from the RMS differences relative to the lowest delay sample */

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering jitter = m->samples_jitter;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering for (idx_min = idx_cur, i = 0; i < ELEMENTSOF(m->samples); i++)

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering if (m->samples[i].delay > 0 && m->samples[i].delay < m->samples[idx_min].delay)

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering idx_min = i;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering j = 0;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering for (i = 0; i < ELEMENTSOF(m->samples); i++)

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering j += square(m->samples[i].offset - m->samples[idx_min].offset);

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering m->samples_jitter = sqrt(j / (ELEMENTSOF(m->samples) - 1));

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering /* ignore samples when resyncing */

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering if (m->poll_resync)

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering return false;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering /* always accept offset if we are farther off than the round-trip delay */

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering if (fabs(offset) > delay)

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering return false;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering /* we need a few samples before looking at them */

8531ae707d4d0203e83304d4af948b8169a5fce1Lennart Poettering if (m->packet_count < 4)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return false;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* do not accept anything worse than the maximum possible error of the best sample */

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (fabs(offset) > m->samples[idx_min].delay)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return true;

fa6ac76083b8ffc1309876459f54f9f0e2843731Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* compare the difference between the current offset to the previous offset and jitter */

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return fabs(offset - m->samples[idx_cur].offset) > 3 * jitter;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic void manager_adjust_poll(Manager *m, double offset, bool spike) {

2678031a179a9b91fc799f8ef951a548c66c4b49Lennart Poettering assert(m);

2678031a179a9b91fc799f8ef951a548c66c4b49Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (m->poll_resync) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->poll_interval_usec = NTP_POLL_INTERVAL_MIN_SEC * USEC_PER_SEC;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->poll_resync = false;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* set to minimal poll interval */

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!spike && fabs(offset) > NTP_ACCURACY_SEC) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->poll_interval_usec = NTP_POLL_INTERVAL_MIN_SEC * USEC_PER_SEC;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

fa6ac76083b8ffc1309876459f54f9f0e2843731Lennart Poettering

fa6ac76083b8ffc1309876459f54f9f0e2843731Lennart Poettering /* increase polling interval */

2678031a179a9b91fc799f8ef951a548c66c4b49Lennart Poettering if (fabs(offset) < NTP_ACCURACY_SEC * 0.25) {

2678031a179a9b91fc799f8ef951a548c66c4b49Lennart Poettering if (m->poll_interval_usec < NTP_POLL_INTERVAL_MAX_SEC * USEC_PER_SEC)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->poll_interval_usec *= 2;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* decrease polling interval */

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (spike || fabs(offset) > NTP_ACCURACY_SEC * 0.75) {

d07f7b9ef2835c290d6beadebd17d15308608eeaLennart Poettering if (m->poll_interval_usec > NTP_POLL_INTERVAL_MIN_SEC * USEC_PER_SEC)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->poll_interval_usec /= 2;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int manager_receive_response(sd_event_source *source, int fd, uint32_t revents, void *userdata) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek Manager *m = userdata;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct ntp_msg ntpmsg;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct iovec iov = {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek .iov_base = &ntpmsg,

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek .iov_len = sizeof(ntpmsg),

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek };

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek union {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct cmsghdr cmsghdr;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering uint8_t buf[CMSG_SPACE(sizeof(struct timeval))];

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } control;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek union sockaddr_union server_addr;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct msghdr msghdr = {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek .msg_iov = &iov,

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek .msg_iovlen = 1,

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek .msg_control = &control,

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek .msg_controllen = sizeof(control),

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek .msg_name = &server_addr,

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk .msg_namelen = sizeof(server_addr),

d07f7b9ef2835c290d6beadebd17d15308608eeaLennart Poettering };

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct cmsghdr *cmsg;

26687bf8a907009dedcff79346860ed41511405eOleksii Shevchuk struct timespec now_ts;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek struct timeval *recv_time;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek ssize_t len;

8266e1c04db8cabe3c68510a0c1f07c09ecdb2e8Lennart Poettering double origin, receive, trans, dest;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek double delay, offset;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek bool spike;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek int leap_sec;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek int r;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(source);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (revents & (EPOLLHUP|EPOLLERR)) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("Server connection returned error.");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return manager_connect(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

8266e1c04db8cabe3c68510a0c1f07c09ecdb2e8Lennart Poettering

8266e1c04db8cabe3c68510a0c1f07c09ecdb2e8Lennart Poettering len = recvmsg(fd, &msghdr, MSG_DONTWAIT);

8266e1c04db8cabe3c68510a0c1f07c09ecdb2e8Lennart Poettering if (len < 0) {

d07f7b9ef2835c290d6beadebd17d15308608eeaLennart Poettering if (errno == EAGAIN)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return 0;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("Error receiving message. Disconnecting.");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return manager_connect(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering if (iov.iov_len < sizeof(struct ntp_msg)) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_warning("Invalid response from server. Disconnecting.");

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek return manager_connect(m);

d07f7b9ef2835c290d6beadebd17d15308608eeaLennart Poettering }

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!m->current_server_name ||

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek !m->current_server_address ||

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering !sockaddr_equal(&server_addr, &m->current_server_address->sockaddr)) {

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering log_debug("Response from unknown server.");

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering return 0;

d378991747d67fff1d4dc39e7fb2bc8f49f1b561Mirco Tischler }

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek recv_time = NULL;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg; cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (cmsg->cmsg_level != SOL_SOCKET)

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek continue;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek switch (cmsg->cmsg_type) {

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering case SCM_TIMESTAMP:

82499507b369fea3033a74c22813bf423301aef4Lennart Poettering recv_time = (struct timeval *) CMSG_DATA(cmsg);

82499507b369fea3033a74c22813bf423301aef4Lennart Poettering break;

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering }

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek }

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (!recv_time) {

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek log_error("Invalid packet timestamp.");

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek return -EINVAL;

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering }

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering if (!m->pending) {

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering log_debug("Unexpected reply. Ignoring.");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return 0;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* check our "time cookie" (we just stored nanoseconds in the fraction field) */

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (be32toh(ntpmsg.origin_time.sec) != m->trans_time.tv_sec + OFFSET_1900_1970 ||

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek be32toh(ntpmsg.origin_time.frac) != m->trans_time.tv_nsec) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("Invalid reply; not our transmit time. Ignoring.");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return 0;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek

c2457105d76e3daf159f554a9bafb9751b23d756Holger Hans Peter Freyther m->event_timeout = sd_event_source_unref(m->event_timeout);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek if (be32toh(ntpmsg.recv_time.sec) < TIME_EPOCH + OFFSET_1900_1970 ||

c2457105d76e3daf159f554a9bafb9751b23d756Holger Hans Peter Freyther be32toh(ntpmsg.trans_time.sec) < TIME_EPOCH + OFFSET_1900_1970) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("Invalid reply, returned times before epoch. Ignoring.");

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek return manager_connect(m);

c2457105d76e3daf159f554a9bafb9751b23d756Holger Hans Peter Freyther }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (NTP_FIELD_LEAP(ntpmsg.field) == NTP_LEAP_NOTINSYNC) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("Server is not synchronized. Disconnecting.");

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering return manager_connect(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!IN_SET(NTP_FIELD_VERSION(ntpmsg.field), 3, 4)) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("Response NTPv%d. Disconnecting.", NTP_FIELD_VERSION(ntpmsg.field));

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return manager_connect(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (NTP_FIELD_MODE(ntpmsg.field) != NTP_MODE_SERVER) {

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek log_debug("Unsupported mode %d. Disconnecting.", NTP_FIELD_MODE(ntpmsg.field));

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return manager_connect(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

9bdbc2e2ec523dbefe1c1c7e164b5544aff0b185Lukas Nykryn

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* valid packet */

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering m->pending = false;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->retry_interval = 0;

3a83211689bdf4ab617a4fb79e11980c50918123Shawn Landden

3a83211689bdf4ab617a4fb79e11980c50918123Shawn Landden /* announce leap seconds */

3a83211689bdf4ab617a4fb79e11980c50918123Shawn Landden if (NTP_FIELD_LEAP(ntpmsg.field) & NTP_LEAP_PLUSSEC)

3a83211689bdf4ab617a4fb79e11980c50918123Shawn Landden leap_sec = 1;

3a83211689bdf4ab617a4fb79e11980c50918123Shawn Landden else if (NTP_FIELD_LEAP(ntpmsg.field) & NTP_LEAP_MINUSSEC)

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering leap_sec = -1;

3a83211689bdf4ab617a4fb79e11980c50918123Shawn Landden else

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek leap_sec = 0;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /*

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering assert_se(clock_gettime(clock_boottime_or_monotonic(), &now_ts) >= 0);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek origin = tv_to_d(recv_time) - (ts_to_d(&now_ts) - ts_to_d(&m->trans_time_mon)) + OFFSET_1900_1970;

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering receive = ntp_ts_to_d(&ntpmsg.recv_time);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek trans = ntp_ts_to_d(&ntpmsg.trans_time);

e9174f29c7e3ee45137537b126458718913a3ec5Lennart Poettering dest = tv_to_d(recv_time) + OFFSET_1900_1970;

7027ff61a34a12487712b382a061c654acc3a679Lennart Poettering

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek offset = ((receive - origin) + (trans - dest)) / 2;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek delay = (dest - origin) - (trans - receive);

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek spike = manager_sample_spike_detection(m, offset, delay);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering manager_adjust_poll(m, offset, spike);

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering log_debug("NTP response:\n"

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering " leap : %u\n"

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek " version : %u\n"

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering " mode : %u\n"

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering " stratum : %u\n"

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering " precision : %.6f sec (%d)\n"

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering " reference : %.4s\n"

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek " origin : %.3f\n"

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek " receive : %.3f\n"

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek " transmit : %.3f\n"

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering " dest : %.3f\n"

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek " offset : %+.3f sec\n"

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering " delay : %+.3f sec\n"

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering " packet count : %"PRIu64"\n"

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering " jitter : %.3f%s\n"

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering " poll interval: " USEC_FMT "\n",

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering NTP_FIELD_LEAP(ntpmsg.field),

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering NTP_FIELD_VERSION(ntpmsg.field),

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering NTP_FIELD_MODE(ntpmsg.field),

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering ntpmsg.stratum,

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering exp2(ntpmsg.precision), ntpmsg.precision,

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering ntpmsg.stratum == 1 ? ntpmsg.refid : "n/a",

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering origin - OFFSET_1900_1970,

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering receive - OFFSET_1900_1970,

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek trans - OFFSET_1900_1970,

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering dest - OFFSET_1900_1970,

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering offset, delay,

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering m->packet_count,

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering m->samples_jitter, spike ? " spike" : "",

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering m->poll_interval_usec / USEC_PER_SEC);

0a244b8ecb6dfcb381fe831dc2aa9bacb2c12975Lennart Poettering

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering if (!spike) {

0a244b8ecb6dfcb381fe831dc2aa9bacb2c12975Lennart Poettering m->sync = true;

0a244b8ecb6dfcb381fe831dc2aa9bacb2c12975Lennart Poettering r = manager_adjust_clock(m, offset, leap_sec);

0a244b8ecb6dfcb381fe831dc2aa9bacb2c12975Lennart Poettering if (r < 0)

0a244b8ecb6dfcb381fe831dc2aa9bacb2c12975Lennart Poettering log_error("Failed to call clock_adjtime(): %m");

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering }

2d43b190901902dbd98ccea77c1d1ddc9e2a9955Dan McGee

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering log_info("interval/delta/delay/jitter/drift " USEC_FMT "s/%+.3fs/%.3fs/%.3fs/%+ippm%s",

2d43b190901902dbd98ccea77c1d1ddc9e2a9955Dan McGee m->poll_interval_usec / USEC_PER_SEC, offset, delay, m->samples_jitter, m->drift_ppm,

ef1673d16907726d83bdff2e57b5261997a85020Mirco Tischler spike ? " (ignored)" : "");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = manager_arm_timer(m, m->poll_interval_usec);

6355e75610a8d47fc3ba5ab8bd442172a2cfe574Lennart Poettering if (r < 0) {

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering log_error("Failed to rearm timer: %s", strerror(-r));

f8294e4175918117ca6c131720bcf287eadcd029Josh Triplett return r;

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering }

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering return 0;

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering}

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int manager_listen_setup(Manager *m) {

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering union sockaddr_union addr = {};

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering static const int tos = IPTOS_LOWDELAY;

e7ff4e7fe9f3abd2297e4ef7b95dcb2804e051c3Greg Kroah-Hartman static const int on = 1;

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering int r;

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering assert(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(m->server_socket < 0);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(!m->event_receive);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(m->current_server_address);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek addr.sa.sa_family = m->current_server_address->sockaddr.sa.sa_family;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek m->server_socket = socket(addr.sa.sa_family, SOCK_DGRAM | SOCK_CLOEXEC, 0);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (m->server_socket < 0)

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek return -errno;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek r = bind(m->server_socket, &addr.sa, m->current_server_address->socklen);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (r < 0)

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek return -errno;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek r = setsockopt(m->server_socket, SOL_SOCKET, SO_TIMESTAMP, &on, sizeof(on));

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (r < 0)

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek return -errno;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek setsockopt(m->server_socket, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering return sd_event_add_io(m->event, &m->event_receive, m->server_socket, EPOLLIN, manager_receive_response, m);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek}

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmekstatic int manager_begin(Manager *m) {

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek _cleanup_free_ char *pretty = NULL;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek int r;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering assert(m);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek assert_return(m->current_server_name, -EHOSTUNREACH);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek assert_return(m->current_server_address, -EHOSTUNREACH);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek m->poll_interval_usec = NTP_POLL_INTERVAL_MIN_SEC * USEC_PER_SEC;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek server_address_pretty(m->current_server_address, &pretty);

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering log_info("Using NTP server %s (%s).", strna(pretty), m->current_server_name->string);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek sd_notifyf(false, "STATUS=Using Time Server %s (%s).", strna(pretty), m->current_server_name->string);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek r = manager_listen_setup(m);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (r < 0) {

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek log_warning("Failed to setup connection socket: %s", strerror(-r));

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek return r;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek }

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek r = manager_clock_watch_setup(m);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (r < 0)

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek return r;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek return manager_send_request(m);

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek}

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmekvoid manager_set_server_name(Manager *m, ServerName *n) {

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek assert(m);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

e9174f29c7e3ee45137537b126458718913a3ec5Lennart Poettering if (m->current_server_name == n)

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek return;

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek m->current_server_name = n;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek m->current_server_address = NULL;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek manager_disconnect(m);

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (n)

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek log_debug("Selected server %s.", n->string);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek}

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmekvoid manager_set_server_address(Manager *m, ServerAddress *a) {

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek assert(m);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (m->current_server_address == a)

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek return;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering m->current_server_name = a ? a->name : NULL;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek m->current_server_address = a;

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering manager_disconnect(m);

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering if (a) {

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering _cleanup_free_ char *pretty = NULL;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek server_address_pretty(a, &pretty);

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek log_debug("Selected address %s of server %s.", strna(pretty), a->name->string);

19cace379f3f680d3201cd257ab3ca6708b2d45dLennart Poettering }

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek}

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmekstatic int manager_resolve_handler(sd_resolve_query *q, int ret, const struct addrinfo *ai, void *userdata) {

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek Manager *m = userdata;

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek int r;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(q);

ae018d9bc900d6355dea4af05119b49c67945184Lennart Poettering assert(m);

a569398925430de1f8479262e8ab39502054f2e9Lennart Poettering assert(m->current_server_name);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->resolve_query = sd_resolve_query_unref(m->resolve_query);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (ret != 0) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("Failed to resolve %s: %s", m->current_server_name->string, gai_strerror(ret));

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering /* Try next host */

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return manager_connect(m);

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering }

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek for (; ai; ai = ai->ai_next) {

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering _cleanup_free_ char *pretty = NULL;

0c24bb2346b6b6232d67aacd5236b56ea4989de4Lennart Poettering ServerAddress *a;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(ai->ai_addr);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(ai->ai_addrlen >= offsetof(struct sockaddr, sa_data));

da4993920cdf5527b8528f0a483b54ab3cbc1971Kay Sievers

40adcda869bda55f44b57fd3a2bd71d006dfb51bLennart Poettering if (!IN_SET(ai->ai_addr->sa_family, AF_INET, AF_INET6)) {

759c945a43577d56e85a927f15e7d9aaa94a4e4aColin Walters log_warning("Unsuitable address protocol for %s", m->current_server_name->string);

82499507b369fea3033a74c22813bf423301aef4Lennart Poettering continue;

edc3797f7cd9e37c24e5241cac3263e7c918f732Lennart Poettering }

edc3797f7cd9e37c24e5241cac3263e7c918f732Lennart Poettering

edc3797f7cd9e37c24e5241cac3263e7c918f732Lennart Poettering r = server_address_new(m->current_server_name, &a, (const union sockaddr_union*) ai->ai_addr, ai->ai_addrlen);

edc3797f7cd9e37c24e5241cac3263e7c918f732Lennart Poettering if (r < 0) {

7517e17443225fafea86b21e42a36af69feb1dbcTorstein Husebø log_error("Failed to add server address: %s", strerror(-r));

8a0889dfdafa3054c894e54852d8a9e3a7e8390bLennart Poettering return r;

da4993920cdf5527b8528f0a483b54ab3cbc1971Kay Sievers }

da4993920cdf5527b8528f0a483b54ab3cbc1971Kay Sievers

759c945a43577d56e85a927f15e7d9aaa94a4e4aColin Walters server_address_pretty(a, &pretty);

d07f7b9ef2835c290d6beadebd17d15308608eeaLennart Poettering log_debug("Resolved address %s for %s.", pretty, m->current_server_name->string);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!m->current_server_name->addresses) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to find suitable address for host %s.", m->current_server_name->string);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

b6fa25552e538eca207072e12d223e3523b21a19Evgeny Vereshchagin /* Try next host */

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return manager_connect(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek manager_set_server_address(m, m->current_server_name->addresses);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return manager_begin(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

b6fa25552e538eca207072e12d223e3523b21a19Evgeny Vereshchagin

b6fa25552e538eca207072e12d223e3523b21a19Evgeny Vereshchaginstatic int manager_retry_connect(sd_event_source *source, usec_t usec, void *userdata) {

b6fa25552e538eca207072e12d223e3523b21a19Evgeny Vereshchagin Manager *m = userdata;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return manager_connect(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekint manager_connect(Manager *m) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek int r;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(m);

e2cc6eca73cd1df8be552d7c23f9ff3d69c06f1eLennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek manager_disconnect(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->event_retry = sd_event_source_unref(m->event_retry);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!ratelimit_test(&m->ratelimit)) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("Slowing down attempts to contact servers.");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_add_time(m->event, &m->event_retry, clock_boottime_or_monotonic(), now(clock_boottime_or_monotonic()) + RETRY_USEC, 0, manager_retry_connect, m);

d07f7b9ef2835c290d6beadebd17d15308608eeaLennart Poettering if (r < 0) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to create retry timer: %s", strerror(-r));

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return r;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return 0;

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering }

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* If we already are operating on some address, switch to the

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek if (m->current_server_address && m->current_server_address->addresses_next)

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek manager_set_server_address(m, m->current_server_address->addresses_next);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek else {

7027ff61a34a12487712b382a061c654acc3a679Lennart Poettering struct addrinfo hints = {

7fd1b19bc9e9f5574f2877936b8ac267c7706947Harald Hoyer .ai_flags = AI_NUMERICSERV|AI_ADDRCONFIG,

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering .ai_socktype = SOCK_DGRAM,

db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek };

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Hmm, we are through all addresses, let's look for the next host instead */

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (m->current_server_name && m->current_server_name->names_next)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek manager_set_server_name(m, m->current_server_name->names_next);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek else {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek ServerName *f;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Our current server name list is exhausted,

2f5df74a5ec135ab2baebf26af6f088e5b4b8205Holger Hans Peter Freyther if (!m->current_server_name || m->current_server_name->type == SERVER_LINK) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek f = m->system_servers;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!f)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek f = m->link_servers;

e9174f29c7e3ee45137537b126458718913a3ec5Lennart Poettering } else {

7027ff61a34a12487712b382a061c654acc3a679Lennart Poettering f = m->link_servers;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!f)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek f = m->system_servers;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!f)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek f = m->fallback_servers;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!f) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek manager_set_server_name(m, NULL);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("No server found.");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return 0;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek manager_set_server_name(m, f);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* Tell the resolver to reread /etc/resolv.conf, in

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering res_init();

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek /* Flush out any previously resolved addresses */

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_name_flush_addresses(m->current_server_name);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_debug("Resolving %s...", m->current_server_name->string);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek r = sd_resolve_getaddrinfo(m->resolve, &m->resolve_query, m->current_server_name->string, "123", &hints, manager_resolve_handler, m);

db91ea32aa223d1b087d99811226a9c59a1bb281Zbigniew Jędrzejewski-Szmek if (r < 0) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_error("Failed to create resolver: %s", strerror(-r));

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return r;

d07f7b9ef2835c290d6beadebd17d15308608eeaLennart Poettering }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return 1;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

caa2f4c0c9613b2e02aafa308c8fb092576014a9Zbigniew Jędrzejewski-Szmek

84267e4043cf88bf540b5bf9cd65e194670a4ffaLennart Poettering r = manager_begin(m);

09eba4d46b1119c758fba38a520a38c8d19af739Lennart Poettering if (r < 0)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return r;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return 1;

caa2f4c0c9613b2e02aafa308c8fb092576014a9Zbigniew Jędrzejewski-Szmek}

caa2f4c0c9613b2e02aafa308c8fb092576014a9Zbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekvoid manager_disconnect(Manager *m) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->resolve_query = sd_resolve_query_unref(m->resolve_query);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->event_timer = sd_event_source_unref(m->event_timer);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->event_receive = sd_event_source_unref(m->event_receive);

ac892057c2ddd8f06323c73ebd80423cc3ec7190Dimitri John Ledkov m->server_socket = safe_close(m->server_socket);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering m->event_clock_watch = sd_event_source_unref(m->event_clock_watch);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek m->clock_watch_fd = safe_close(m->clock_watch_fd);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering m->event_timeout = sd_event_source_unref(m->event_timeout);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering sd_notifyf(false, "STATUS=Idle.");

5c3bde3fa8613e09e694198862ea9038566af422Zbigniew Jędrzejewski-Szmek}

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poetteringvoid manager_flush_server_names(Manager *m, ServerType t) {

433dd100442e8197868def975c6fd38b48dc6439Lukas Nykryn assert(m);

da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt

e40ec7aec5e64cd0cfa5fc556d6a9747229b5794Zbigniew Jędrzejewski-Szmek if (t == SERVER_SYSTEM)

433dd100442e8197868def975c6fd38b48dc6439Lukas Nykryn while (m->system_servers)

433dd100442e8197868def975c6fd38b48dc6439Lukas Nykryn server_name_free(m->system_servers);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (t == SERVER_LINK)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek while (m->link_servers)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_name_free(m->link_servers);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering if (t == SERVER_FALLBACK)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek while (m->fallback_servers)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_name_free(m->fallback_servers);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekvoid manager_free(Manager *m) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!m)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek manager_disconnect(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek manager_flush_server_names(m, SERVER_SYSTEM);

da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt manager_flush_server_names(m, SERVER_LINK);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek manager_flush_server_names(m, SERVER_FALLBACK);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sd_event_source_unref(m->event_retry);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sd_event_source_unref(m->network_event_source);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sd_network_monitor_unref(m->network_monitor);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sd_resolve_unref(m->resolve);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sd_event_unref(m->event);

fc1d70af2101e16c9e6f3c5bfd5ab315ee9e6daeLennart Poettering

fc1d70af2101e16c9e6f3c5bfd5ab315ee9e6daeLennart Poettering free(m);

fc1d70af2101e16c9e6f3c5bfd5ab315ee9e6daeLennart Poettering}

fc1d70af2101e16c9e6f3c5bfd5ab315ee9e6daeLennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int manager_network_read_link_servers(Manager *m) {

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt _cleanup_strv_free_ char **ntp = NULL;

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt ServerName *n, *nx;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek char **i;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek int r;

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

5c3bde3fa8613e09e694198862ea9038566af422Zbigniew Jędrzejewski-Szmek assert(m);

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering r = sd_network_get_ntp(&ntp);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (r < 0)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek goto clear;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek LIST_FOREACH(names, n, m->link_servers)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek n->marked = true;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek STRV_FOREACH(i, ntp) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek bool found = false;

fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poettering

fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poettering LIST_FOREACH(names, n, m->link_servers)

fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poettering if (streq(n->string, *i)) {

fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poettering n->marked = false;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek found = true;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek break;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (!found) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = server_name_new(m, NULL, SERVER_LINK, *i);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (r < 0)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek goto clear;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek LIST_FOREACH_SAFE(names, n, nx, m->link_servers)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (n->marked)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek server_name_free(n);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return 0;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poetteringclear:

fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poettering manager_flush_server_names(m, SERVER_LINK);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return r;

00a168618906bea43c3c57e20b9152582c324bf8Olivier Brunel}

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekstatic int manager_network_event_handler(sd_event_source *s, int fd, uint32_t revents, void *userdata) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek Manager *m = userdata;

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt bool connected, online;

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt int r;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

93b73b064c663d6248bebfbbbd82989b5ca10fc5Lennart Poettering assert(m);

93b73b064c663d6248bebfbbbd82989b5ca10fc5Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek sd_network_monitor_flush(m->network_monitor);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek manager_network_read_link_servers(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek /* check if the machine is online */

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek online = network_is_online();

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poettering /* check if the client is currently connected */

fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poettering connected = m->server_socket >= 0 || m->resolve_query;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (connected && !online) {

da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt log_info("No network connectivity, watching for changes.");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek manager_disconnect(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek } else if (!connected && online) {

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek log_info("Network configuration changed, trying to establish connection.");

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (m->current_server_address)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = manager_begin(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek else

da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt r = manager_connect(m);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (r < 0)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return r;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek }

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

8580d1f73db36e9383e674e388b4fb55828c0c66Lennart Poettering return 0;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

253f59dff9c93ee1d2c33444b5715e42bc1c6889Lennart Poettering

253f59dff9c93ee1d2c33444b5715e42bc1c6889Lennart Poetteringstatic int manager_network_monitor_listen(Manager *m) {

253f59dff9c93ee1d2c33444b5715e42bc1c6889Lennart Poettering int r, fd, events;

253f59dff9c93ee1d2c33444b5715e42bc1c6889Lennart Poettering

253f59dff9c93ee1d2c33444b5715e42bc1c6889Lennart Poettering assert(m);

253f59dff9c93ee1d2c33444b5715e42bc1c6889Lennart Poettering

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_network_monitor_new(&m->network_monitor, NULL);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (r < 0)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return r;

da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek fd = sd_network_monitor_get_fd(m->network_monitor);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek if (fd < 0)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return fd;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

804ae586d475d77946debb22c1bc9ee049d4750cLennart Poettering events = sd_network_monitor_get_events(m->network_monitor);

804ae586d475d77946debb22c1bc9ee049d4750cLennart Poettering if (events < 0)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return events;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek r = sd_event_add_io(m->event, &m->network_event_source, fd, events, manager_network_event_handler, m);

804ae586d475d77946debb22c1bc9ee049d4750cLennart Poettering if (r < 0)

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek return r;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

c6878637502b1717a110a9a7e8bba32a8583fcdfLennart Poettering return 0;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

763c7aa288485cf5ab627fe1d25ff58e76f9dacbZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmekint manager_new(Manager **ret) {

fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poettering _cleanup_(manager_freep) Manager *m = NULL;

fbb634117d0b0ebd5b105e65b141e75ae9af7f8fLennart Poettering int r;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek assert(ret);

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek

8531ae707d4d0203e83304d4af948b8169a5fce1Lennart Poettering m = new0(Manager, 1);

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering if (!m)

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering return -ENOMEM;

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering m->server_socket = m->clock_watch_fd = -1;

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering RATELIMIT_INIT(m->ratelimit, RATELIMIT_INTERVAL_USEC, RATELIMIT_BURST);

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering r = manager_parse_server_string(m, SERVER_FALLBACK, NTP_SERVERS);

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering if (r < 0)

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering return r;

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering r = sd_event_default(&m->event);

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering if (r < 0)

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering return r;

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL);

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering sd_event_set_watchdog(m->event, true);

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering r = sd_resolve_default(&m->resolve);

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering if (r < 0)

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering return r;

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering r = sd_resolve_attach_event(m->resolve, m->event, 0);

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering if (r < 0)

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering return r;

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering r = manager_network_monitor_listen(m);

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering if (r < 0)

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering return r;

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering manager_network_read_link_servers(m);

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering *ret = m;

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering m = NULL;

a315ac4e076c4ce7ce3e5c95792cf916d5e918c5Lennart Poettering

f9a810bedacf1da7c505c1786a2416d592665926Lennart Poettering return 0;

d025f1e4dca8fc1436aff76f9e6185fe3e728daaZbigniew Jędrzejewski-Szmek}

875c2e220e2611165e09051c4747971811f1de58Lennart Poettering