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authorLennart Poettering <lennart@poettering.net>2014-05-06 17:02:11 +0200
committerLennart Poettering <lennart@poettering.net>2014-05-06 17:02:11 +0200
commite8af69739a629708d2c155ebcd4fa57b8fd5006a (patch)
tree70a5b7e27eca1850db1dba950fb82db5214213c8
parent16c058ba014e210fd8f6833a56787815c1059e1f (diff)
timesyncd: read server settings from a configuration file
Also, allow compiling in a default server list via a configure command line item.
-rw-r--r--Makefile.am29
-rw-r--r--configure.ac10
-rw-r--r--src/timesync/.gitignore2
l---------src/timesync/Makefile1
-rw-r--r--src/timesync/timesyncd-gperf.gperf17
-rw-r--r--src/timesync/timesyncd.c164
-rw-r--r--src/timesync/timesyncd.conf.in11
-rw-r--r--src/timesync/timesyncd.h97
8 files changed, 252 insertions, 79 deletions
diff --git a/Makefile.am b/Makefile.am
index cbb405b15e..dc5737e06a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -128,6 +128,7 @@ polkitpolicy_in_files =
polkitpolicy_files =
dist_udevrules_DATA =
nodist_udevrules_DATA =
+nodist_pkgsysconf_DATA =
dist_pkgsysconf_DATA =
dist_pkgdata_DATA =
dist_dbuspolicy_DATA =
@@ -4017,7 +4018,17 @@ EXTRA_DIST += \
# ------------------------------------------------------------------------------
if ENABLE_TIMESYNCD
systemd_timesyncd_SOURCES = \
- src/timesync/timesyncd.c
+ src/timesync/timesyncd.c \
+ src/timesync/timesyncd.h
+
+nodist_systemd_timesyncd_SOURCES = \
+ src/timesync/timesyncd-gperf.c
+
+EXTRA_DIST += \
+ src/timesync/timesyncd-gperf.gperf
+
+CLEANFILES += \
+ src/timesync/timesyncd-gperf.c
systemd_timesyncd_LDADD = \
libsystemd-label.la \
@@ -4034,6 +4045,16 @@ nodist_systemunit_DATA += \
EXTRA_DIST += \
units/systemd-timesyncd.service.in
+
+nodist_pkgsysconf_DATA += \
+ src/timesync/timesyncd.conf
+
+EXTRA_DIST += \
+ src/timesync/timesyncd.conf.in
+
+CLEANFILES += \
+ src/timesync/timesyncd.conf
+
endif
# ------------------------------------------------------------------------------
@@ -4763,7 +4784,8 @@ substitutions = \
'|RC_LOCAL_SCRIPT_PATH_START=$(RC_LOCAL_SCRIPT_PATH_START)|' \
'|RC_LOCAL_SCRIPT_PATH_STOP=$(RC_LOCAL_SCRIPT_PATH_STOP)|' \
'|PYTHON=$(PYTHON)|' \
- '|PYTHON_BINARY=$(PYTHON_BINARY)|'
+ '|PYTHON_BINARY=$(PYTHON_BINARY)|' \
+ '|NTP_SERVERS=$(NTP_SERVERS)|'
SED_PROCESS = \
$(AM_V_GEN)$(MKDIR_P) $(dir $@) && \
@@ -4791,6 +4813,9 @@ src/%.policy.in: src/%.policy.in.in
%.rules: %.rules.in
$(SED_PROCESS)
+%.conf: %.conf.in
+ $(SED_PROCESS)
+
%.sh: %.sh.in
$(SED_PROCESS)
$(AM_V_GEN)chmod +x $@
diff --git a/configure.ac b/configure.ac
index ead697b84c..318d77b302 100644
--- a/configure.ac
+++ b/configure.ac
@@ -827,6 +827,15 @@ if test "x$enable_timesyncd" != "xno"; then
fi
AM_CONDITIONAL(ENABLE_TIMESYNCD, [test "$have_timesyncd" = "yes"])
+AC_ARG_WITH(ntp-servers,
+ AS_HELP_STRING([--with-ntp-servers=NTPSERVERS],
+ [Space-separated list of default NTP servers]),
+ [NTP_SERVERS="$withval"],
+ [NTP_SERVERS="time1.google.com time2.google.com time3.google.com time4.google.com"])
+
+AC_DEFINE_UNQUOTED(NTP_SERVERS, ["$NTP_SERVERS"], [Default NTP Servers])
+AC_SUBST(NTP_SERVERS)
+
# ------------------------------------------------------------------------------
have_localed=no
AC_ARG_ENABLE(localed, AS_HELP_STRING([--disable-localed], [disable locale daemon]))
@@ -1159,6 +1168,7 @@ AC_MSG_RESULT([
hostnamed: ${have_hostnamed}
timedated: ${have_timedated}
timesyncd: ${have_timesyncd}
+ default NTP servers: ${NTP_SERVERS}
localed: ${have_localed}
networkd: ${have_networkd}
coredump: ${have_coredump}
diff --git a/src/timesync/.gitignore b/src/timesync/.gitignore
new file mode 100644
index 0000000000..35f4d76f79
--- /dev/null
+++ b/src/timesync/.gitignore
@@ -0,0 +1,2 @@
+/timesyncd.conf
+/timesyncd-gperf.c
diff --git a/src/timesync/Makefile b/src/timesync/Makefile
new file mode 120000
index 0000000000..d0b0e8e008
--- /dev/null
+++ b/src/timesync/Makefile
@@ -0,0 +1 @@
+../Makefile \ No newline at end of file
diff --git a/src/timesync/timesyncd-gperf.gperf b/src/timesync/timesyncd-gperf.gperf
new file mode 100644
index 0000000000..887dc68b50
--- /dev/null
+++ b/src/timesync/timesyncd-gperf.gperf
@@ -0,0 +1,17 @@
+%{
+#include <stddef.h>
+#include "conf-parser.h"
+#include "timesyncd.h"
+%}
+struct ConfigPerfItem;
+%null_strings
+%language=ANSI-C
+%define slot-name section_and_lvalue
+%define hash-function-name timesyncdd_gperf_hash
+%define lookup-function-name timesyncd_gperf_lookup
+%readonly-tables
+%omit-struct-type
+%struct-type
+%includes
+%%
+Time.Servers, config_parse_servers, 0, 0
diff --git a/src/timesync/timesyncd.c b/src/timesync/timesyncd.c
index f2206cc2ac..6e38a2cb89 100644
--- a/src/timesync/timesyncd.c
+++ b/src/timesync/timesyncd.c
@@ -3,7 +3,7 @@
/***
This file is part of systemd.
- Copyright 2014 Kay Sievers
+ Copyright 2014 Kay Sievers, Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
@@ -42,9 +42,11 @@
#include "list.h"
#include "ratelimit.h"
#include "strv.h"
+#include "conf-parser.h"
#include "sd-event.h"
#include "sd-resolve.h"
#include "sd-daemon.h"
+#include "timesyncd.h"
#define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1)
@@ -116,73 +118,6 @@ struct ntp_msg {
struct ntp_ts trans_time;
} _packed_;
-typedef struct Manager Manager;
-typedef struct ServerAddress ServerAddress;
-typedef struct ServerName ServerName;
-
-struct ServerAddress {
- union sockaddr_union sockaddr;
- socklen_t socklen;
- LIST_FIELDS(ServerAddress, addresses);
-};
-
-struct ServerName {
- char *string;
- LIST_HEAD(ServerAddress, addresses);
- LIST_FIELDS(ServerName, names);
-};
-
-struct Manager {
- sd_event *event;
- sd_resolve *resolve;
-
- LIST_HEAD(ServerName, servers);
-
- RateLimit ratelimit;
-
- /* peer */
- sd_resolve_query *resolve_query;
- sd_event_source *event_receive;
- ServerName *current_server_name;
- ServerAddress *current_server_address;
- int server_socket;
- uint64_t packet_count;
- sd_event_source *event_timeout;
-
- /* last sent packet */
- struct timespec trans_time_mon;
- struct timespec trans_time;
- usec_t retry_interval;
- bool pending;
-
- /* poll timer */
- sd_event_source *event_timer;
- usec_t poll_interval_usec;
- bool poll_resync;
-
- /* history data */
- struct {
- double offset;
- double delay;
- } samples[8];
- unsigned int samples_idx;
- double samples_jitter;
-
- /* last change */
- bool jumped;
- int drift_ppm;
-
- /* watch for time changes */
- sd_event_source *event_clock_watch;
- int clock_watch_fd;
-
- /* Retry connections */
- sd_event_source *event_retry;
-
- /* Handle SIGINT/SIGTERM */
- sd_event_source *sigterm, *sigint;
-};
-
static void manager_free(Manager *m);
DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
#define _cleanup_manager_free_ _cleanup_(manager_freep)
@@ -974,6 +909,28 @@ static int manager_add_server(Manager *m, const char *server) {
return 0;
}
+static int manager_add_server_string(Manager *m, const char *string) {
+ char *w, *state;
+ size_t l;
+ int r;
+
+ assert(m);
+ assert(string);
+
+ FOREACH_WORD_QUOTED(w, l, string, state) {
+ char t[l+1];
+
+ memcpy(t, w, l);
+ t[l] = 0;
+
+ r = manager_add_server(m, t);
+ if (r < 0)
+ log_error("Failed to add server %s to configuration, ignoring: %s", t, strerror(-r));
+ }
+
+ return 0;
+}
+
static void manager_disconnect(Manager *m) {
assert(m);
@@ -1047,15 +1004,70 @@ static void manager_free(Manager *m) {
free(m);
}
+int config_parse_servers(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Manager *m = userdata;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ manager_flush_names(m);
+ manager_add_server_string(m, rvalue);
+
+ return 0;
+}
+
+static int manager_parse_config_file(Manager *m) {
+ static const char fn[] = "/etc/systemd/timesyncd.conf";
+ _cleanup_fclose_ FILE *f = NULL;
+ int r;
+
+ assert(m);
+
+ f = fopen(fn, "re");
+ if (!f) {
+ if (errno == ENOENT)
+ return 0;
+
+ log_warning("Failed to open configuration file %s: %m", fn);
+ return -errno;
+ }
+
+ r = config_parse(NULL, fn, f, "Time\0", config_item_perf_lookup,
+ (void*) timesyncd_gperf_lookup, false, false, m);
+ if (r < 0)
+ log_warning("Failed to parse configuration file: %s", strerror(-r));
+
+ return r;
+}
+
int main(int argc, char *argv[]) {
_cleanup_manager_free_ Manager *m = NULL;
- const char *x;
int r;
+ if (argc > 1) {
+ log_error("This program does not take arguments.");
+ return EXIT_FAILURE;
+ }
+
log_set_target(LOG_TARGET_AUTO);
+ log_set_facility(LOG_CRON);
log_parse_environment();
log_open();
+ umask(0022);
+
assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
r = manager_new(&m);
@@ -1064,15 +1076,11 @@ int main(int argc, char *argv[]) {
goto out;
}
- sd_notify(false, "READY=1");
+ manager_add_server_string(m, NTP_SERVERS);
+ manager_parse_config_file(m);
- FOREACH_STRING(x, "8.8.8.8", "172.31.0.1", "time1.google.com", "time2.google.com", "time3.google.com", "time4.google.com", "0.fedora.pool.ntp.org") {
- r = manager_add_server(m, x);
- if (r < 0) {
- log_error("Failed to add server %s: %s", x, strerror(-r));
- goto out;
- }
- }
+ log_debug("systemd-timesyncd running as pid %lu", (unsigned long) getpid());
+ sd_notify(false, "READY=1");
r = manager_connect(m);
if (r < 0)
@@ -1087,5 +1095,7 @@ int main(int argc, char *argv[]) {
sd_event_get_exit_code(m->event, &r);
out:
+ sd_notify(false, "STATUS=Shutting down...");
+
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
diff --git a/src/timesync/timesyncd.conf.in b/src/timesync/timesyncd.conf.in
new file mode 100644
index 0000000000..a0caa1d40d
--- /dev/null
+++ b/src/timesync/timesyncd.conf.in
@@ -0,0 +1,11 @@
+# This file is part of systemd.
+#
+# systemd is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# See timesyncd.conf(5) for details
+
+[Time]
+#Servers=@NTP_SERVERS@
diff --git a/src/timesync/timesyncd.h b/src/timesync/timesyncd.h
new file mode 100644
index 0000000000..6dd1388ea8
--- /dev/null
+++ b/src/timesync/timesyncd.h
@@ -0,0 +1,97 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Kay Sievers, Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "list.h"
+#include "socket-util.h"
+#include "ratelimit.h"
+#include "sd-event.h"
+#include "sd-resolve.h"
+
+typedef struct Manager Manager;
+typedef struct ServerAddress ServerAddress;
+typedef struct ServerName ServerName;
+
+struct ServerAddress {
+ union sockaddr_union sockaddr;
+ socklen_t socklen;
+ LIST_FIELDS(ServerAddress, addresses);
+};
+
+struct ServerName {
+ char *string;
+ LIST_HEAD(ServerAddress, addresses);
+ LIST_FIELDS(ServerName, names);
+};
+
+struct Manager {
+ sd_event *event;
+ sd_resolve *resolve;
+
+ LIST_HEAD(ServerName, servers);
+
+ RateLimit ratelimit;
+
+ /* peer */
+ sd_resolve_query *resolve_query;
+ sd_event_source *event_receive;
+ ServerName *current_server_name;
+ ServerAddress *current_server_address;
+ int server_socket;
+ uint64_t packet_count;
+ sd_event_source *event_timeout;
+
+ /* last sent packet */
+ struct timespec trans_time_mon;
+ struct timespec trans_time;
+ usec_t retry_interval;
+ bool pending;
+
+ /* poll timer */
+ sd_event_source *event_timer;
+ usec_t poll_interval_usec;
+ bool poll_resync;
+
+ /* history data */
+ struct {
+ double offset;
+ double delay;
+ } samples[8];
+ unsigned int samples_idx;
+ double samples_jitter;
+
+ /* last change */
+ bool jumped;
+ int drift_ppm;
+
+ /* watch for time changes */
+ sd_event_source *event_clock_watch;
+ int clock_watch_fd;
+
+ /* Retry connections */
+ sd_event_source *event_retry;
+
+ /* Handle SIGINT/SIGTERM */
+ sd_event_source *sigterm, *sigint;
+};
+
+const struct ConfigPerfItem* timesyncd_gperf_lookup(const char *key, unsigned length);
+
+int config_parse_servers(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);