along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <dbus/dbus.h>
-
#include <errno.h>
#include <string.h>
#include <unistd.h>
+#include <sys/capability.h>
+
+#include "sd-id128.h"
+#include "sd-messages.h"
+#include "sd-event.h"
+#include "sd-bus.h"
-#include "systemd/sd-id128.h"
-#include "systemd/sd-messages.h"
#include "util.h"
#include "strv.h"
-#include "dbus-common.h"
-#include "polkit.h"
#include "def.h"
-#include "hwclock.h"
+#include "clock-util.h"
#include "conf-files.h"
#include "path-util.h"
#include "fileio-label.h"
#include "label.h"
+#include "bus-util.h"
+#include "bus-errors.h"
+#include "event-util.h"
#define NULL_ADJTIME_UTC "0.0 0 0\n0\nUTC\n"
#define NULL_ADJTIME_LOCAL "0.0 0 0\n0\nLOCAL\n"
-#define INTERFACE \
- " <interface name=\"org.freedesktop.timedate1\">\n" \
- " <property name=\"Timezone\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"LocalRTC\" type=\"b\" access=\"read\"/>\n" \
- " <property name=\"CanNTP\" type=\"b\" access=\"read\"/>\n" \
- " <property name=\"NTP\" type=\"b\" access=\"read\"/>\n" \
- " <method name=\"SetTime\">\n" \
- " <arg name=\"usec_utc\" type=\"x\" direction=\"in\"/>\n" \
- " <arg name=\"relative\" type=\"b\" direction=\"in\"/>\n" \
- " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
- " </method>\n" \
- " <method name=\"SetTimezone\">\n" \
- " <arg name=\"timezone\" type=\"s\" direction=\"in\"/>\n" \
- " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
- " </method>\n" \
- " <method name=\"SetLocalRTC\">\n" \
- " <arg name=\"local_rtc\" type=\"b\" direction=\"in\"/>\n" \
- " <arg name=\"fix_system\" type=\"b\" direction=\"in\"/>\n" \
- " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
- " </method>\n" \
- " <method name=\"SetNTP\">\n" \
- " <arg name=\"use_ntp\" type=\"b\" direction=\"in\"/>\n" \
- " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
- " </method>\n" \
- " </interface>\n"
-
-#define INTROSPECTION \
- DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
- "<node>\n" \
- INTERFACE \
- BUS_PROPERTIES_INTERFACE \
- BUS_INTROSPECTABLE_INTERFACE \
- BUS_PEER_INTERFACE \
- "</node>\n"
-
-#define INTERFACES_LIST \
- BUS_GENERIC_INTERFACES_LIST \
- "org.freedesktop.timedate1\0"
-
-const char timedate_interface[] _introspect_("timedate1") = INTERFACE;
-
-typedef struct TZ {
+typedef struct Context {
char *zone;
bool local_rtc;
- int can_ntp;
- int use_ntp;
-} TZ;
-
-static TZ tz = {
- .can_ntp = -1,
- .use_ntp = -1,
-};
+ bool can_ntp;
+ bool use_ntp;
+ Hashmap *polkit_registry;
+} Context;
-static usec_t remain_until;
+static void context_free(Context *c) {
+ assert(c);
-static void free_data(void) {
- free(tz.zone);
- tz.zone = NULL;
-
- tz.local_rtc = false;
+ free(c->zone);
+ bus_verify_polkit_async_registry_free(c->polkit_registry);
}
-static bool valid_timezone(const char *name) {
- const char *p;
- char *t;
- bool slash = false;
- int r;
- struct stat st;
-
- assert(name);
-
- if (*name == '/' || *name == 0)
- return false;
-
- for (p = name; *p; p++) {
- if (!(*p >= '0' && *p <= '9') &&
- !(*p >= 'a' && *p <= 'z') &&
- !(*p >= 'A' && *p <= 'Z') &&
- !(*p == '-' || *p == '_' || *p == '+' || *p == '/'))
- return false;
-
- if (*p == '/') {
-
- if (slash)
- return false;
-
- slash = true;
- } else
- slash = false;
- }
-
- if (slash)
- return false;
-
- t = strappend("/usr/share/zoneinfo/", name);
- if (!t)
- return false;
-
- r = stat(t, &st);
- free(t);
-
- if (r < 0)
- return false;
-
- if (!S_ISREG(st.st_mode))
- return false;
-
- return true;
-}
-
-static int read_data(void) {
- int r;
+static int context_read_data(Context *c) {
_cleanup_free_ char *t = NULL;
+ int r;
- free_data();
+ assert(c);
r = readlink_malloc("/etc/localtime", &t);
if (r < 0) {
if (r == -EINVAL)
- log_warning("/etc/localtime should be a symbolic link to a timezone data file in /usr/share/zoneinfo/.");
+ log_warning("/etc/localtime should be a symbolic link to a time zone data file in /usr/share/zoneinfo/.");
else
log_warning("Failed to get target of /etc/localtime: %s", strerror(-r));
} else {
e = path_startswith(t, "../usr/share/zoneinfo/");
if (!e)
- log_warning("/etc/localtime should be a symbolic link to a timezone data file in /usr/share/zoneinfo/.");
+ log_warning("/etc/localtime should be a symbolic link to a time zone data file in /usr/share/zoneinfo/.");
else {
- tz.zone = strdup(e);
- if (!tz.zone)
+ c->zone = strdup(e);
+ if (!c->zone)
return log_oom();
goto have_timezone;
}
have_timezone:
- if (isempty(tz.zone)) {
- free(tz.zone);
- tz.zone = NULL;
+ if (isempty(c->zone)) {
+ free(c->zone);
+ c->zone = NULL;
}
- tz.local_rtc = hwclock_is_localtime() > 0;
+ c->local_rtc = clock_is_localtime() > 0;
return 0;
}
-static int write_data_timezone(void) {
- int r = 0;
+static int context_write_data_timezone(Context *c) {
_cleanup_free_ char *p = NULL;
+ int r = 0;
+
+ assert(c);
- if (!tz.zone) {
+ if (isempty(c->zone)) {
if (unlink("/etc/localtime") < 0 && errno != ENOENT)
r = -errno;
return r;
}
- p = strappend("../usr/share/zoneinfo/", tz.zone);
+ p = strappend("../usr/share/zoneinfo/", c->zone);
if (!p)
return log_oom();
return 0;
}
-static int write_data_local_rtc(void) {
+static int context_write_data_local_rtc(Context *c) {
int r;
- char _cleanup_free_ *s = NULL, *w = NULL;
+ _cleanup_free_ char *s = NULL, *w = NULL;
+
+ assert(c);
r = read_full_file("/etc/adjtime", &s, NULL);
if (r < 0) {
if (r != -ENOENT)
return r;
- if (!tz.local_rtc)
+ if (!c->local_rtc)
return 0;
w = strdup(NULL_ADJTIME_LOCAL);
a = p - s;
b = strlen(e);
- w = new(char, a + (tz.local_rtc ? 5 : 3) + b + 1);
+ w = new(char, a + (c->local_rtc ? 5 : 3) + b + 1);
if (!w)
return -ENOMEM;
- *(char*) mempcpy(stpcpy(mempcpy(w, s, a), tz.local_rtc ? "LOCAL" : "UTC"), e, b) = 0;
+ *(char*) mempcpy(stpcpy(mempcpy(w, s, a), c->local_rtc ? "LOCAL" : "UTC"), e, b) = 0;
if (streq(w, NULL_ADJTIME_UTC)) {
if (unlink("/etc/adjtime") < 0)
return 0;
}
}
+
label_init("/etc");
return write_string_file_atomic_label("/etc/adjtime", w);
}
-static char** get_ntp_services(void) {
- char _cleanup_strv_free_ **r = NULL, **files;
- char **i;
- int k;
+static int context_read_ntp(Context *c, sd_bus *bus) {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ sd_bus_message *reply = NULL;
+ const char *s;
+ int r;
- k = conf_files_list(&files, ".list", NULL,
- "/etc/systemd/ntp-units.d",
- "/run/systemd/ntp-units.d",
- "/usr/local/lib/systemd/ntp-units.d",
- "/usr/lib/systemd/ntp-units.d",
- NULL);
- if (k < 0)
- return NULL;
+ assert(c);
+ assert(bus);
- STRV_FOREACH(i, files) {
- FILE _cleanup_fclose_ *f;
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "GetUnitFileState",
+ &error,
+ &reply,
+ "s",
+ "systemd-timesyncd.service");
- f = fopen(*i, "re");
- if (!f)
- continue;
+ if (r < 0) {
+ if (sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND) ||
+ sd_bus_error_has_name(&error, "org.freedesktop.systemd1.LoadFailed") ||
+ sd_bus_error_has_name(&error, "org.freedesktop.systemd1.NoSuchUnit"))
+ return 0;
- for (;;) {
- char line[PATH_MAX], *l;
+ return r;
+ }
- if (!fgets(line, sizeof(line), f)) {
+ r = sd_bus_message_read(reply, "s", &s);
+ if (r < 0)
+ return r;
+
+ c->can_ntp = true;
+ c->use_ntp = STR_IN_SET(s, "enabled", "enabled-runtime");
- if (ferror(f))
- log_error("Failed to read NTP units file: %m");
+ return 0;
+}
- break;
- }
+static int context_start_ntp(Context *c, sd_bus *bus, sd_bus_error *error) {
+ int r;
- l = strstrip(line);
- if (l[0] == 0 || l[0] == '#')
- continue;
+ assert(c);
+ assert(bus);
+ assert(error);
- if (strv_extend(&r, l) < 0)
- log_oom();
- return NULL;
+ if (c->use_ntp)
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StartUnit",
+ error,
+ NULL,
+ "ss",
+ "systemd-timesyncd.service",
+ "replace");
+ else
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StopUnit",
+ error,
+ NULL,
+ "ss",
+ "systemd-timesyncd.service",
+ "replace");
+
+ if (r < 0) {
+ if (sd_bus_error_has_name(error, SD_BUS_ERROR_FILE_NOT_FOUND) ||
+ sd_bus_error_has_name(error, "org.freedesktop.systemd1.LoadFailed") ||
+ sd_bus_error_has_name(error, "org.freedesktop.systemd1.NoSuchUnit")) {
+ sd_bus_error_set_const(error, "org.freedesktop.timedate1.NoNTPSupport", "NTP not supported.");
+ return -ENOTSUP;
}
- }
- i = r;
- r = NULL; /* avoid cleanup */
+ return r;
+ }
- return strv_uniq(i);
+ return 0;
}
-static int read_ntp(DBusConnection *bus) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
+static int context_enable_ntp(Context*c, sd_bus *bus, sd_bus_error *error) {
int r;
- char **i, **l;
+ assert(c);
assert(bus);
+ assert(error);
- dbus_error_init(&error);
-
- l = get_ntp_services();
- STRV_FOREACH(i, l) {
- const char *s;
-
- if (m)
- dbus_message_unref(m);
- m = dbus_message_new_method_call(
+ if (c->use_ntp)
+ r = sd_bus_call_method(
+ bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
- "GetUnitFileState");
- if (!m) {
- r = log_oom();
- goto finish;
- }
+ "EnableUnitFiles",
+ error,
+ NULL,
+ "asbb", 1,
+ "systemd-timesyncd.service",
+ false, true);
+ else
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "DisableUnitFiles",
+ error,
+ NULL,
+ "asb", 1,
+ "systemd-timesyncd.service",
+ false);
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, i,
- DBUS_TYPE_INVALID)) {
- r = log_oom();
- goto finish;
+ if (r < 0) {
+ if (sd_bus_error_has_name(error, SD_BUS_ERROR_FILE_NOT_FOUND)) {
+ sd_bus_error_set_const(error, "org.freedesktop.timedate1.NoNTPSupport", "NTP not supported.");
+ return -ENOTSUP;
}
- reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
- if (!reply) {
- if (streq(error.name, "org.freedesktop.DBus.Error.FileNotFound")) {
- /* This implementation does not exist, try next one */
- dbus_error_free(&error);
- continue;
- }
-
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
+ return r;
+ }
- if (!dbus_message_get_args(reply, &error,
- DBUS_TYPE_STRING, &s,
- DBUS_TYPE_INVALID)) {
- log_error("Failed to parse reply: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "Reload",
+ error,
+ NULL,
+ NULL);
+ if (r < 0)
+ return r;
- tz.can_ntp = 1;
- tz.use_ntp =
- streq(s, "enabled") ||
- streq(s, "enabled-runtime");
- r = 0;
- goto finish;
- }
+ return 0;
+}
- /* NTP is not installed. */
- tz.can_ntp = 0;
- tz.use_ntp = 0;
- r = 0;
+static int property_get_rtc_time(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ struct tm tm;
+ usec_t t;
+ int r;
-finish:
- if (m)
- dbus_message_unref(m);
+ zero(tm);
+ r = clock_get_hwclock(&tm);
+ if (r == -EBUSY) {
+ log_warning("/dev/rtc is busy. Is somebody keeping it open continuously? That's not a good idea... Returning a bogus RTC timestamp.");
+ t = 0;
+ } else if (r == -ENOENT) {
+ log_debug("/dev/rtc not found.");
+ t = 0; /* no RTC found */
+ } else if (r < 0)
+ return sd_bus_error_set_errnof(error, r, "Failed to read RTC: %s", strerror(-r));
+ else
+ t = (usec_t) timegm(&tm) * USEC_PER_SEC;
+
+ return sd_bus_message_append(reply, "t", t);
+}
- if (reply)
- dbus_message_unref(reply);
+static int property_get_time(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
- strv_free(l);
+ return sd_bus_message_append(reply, "t", now(CLOCK_REALTIME));
+}
- dbus_error_free(&error);
+static int property_get_ntp_sync(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
- return r;
+ return sd_bus_message_append(reply, "b", ntp_synced());
}
-static int start_ntp(DBusConnection *bus, DBusError *error) {
- DBusMessage *m = NULL, *reply = NULL;
- const char *mode = "replace";
- char **i, **l;
+static int method_set_timezone(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) {
+ Context *c = userdata;
+ const char *z;
+ int interactive;
+ char *t;
int r;
assert(bus);
- assert(error);
+ assert(m);
+ assert(c);
- l = get_ntp_services();
- STRV_FOREACH(i, l) {
- if (m)
- dbus_message_unref(m);
- m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- tz.use_ntp ? "StartUnit" : "StopUnit");
- if (!m) {
- log_error("Could not allocate message.");
- r = -ENOMEM;
- goto finish;
- }
+ r = sd_bus_message_read(m, "sb", &z, &interactive);
+ if (r < 0)
+ return r;
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, i,
- DBUS_TYPE_STRING, &mode,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
+ if (!timezone_is_valid(z))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid time zone '%s'", z);
- reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error);
- if (!reply) {
- if (streq(error->name, "org.freedesktop.DBus.Error.FileNotFound") ||
- streq(error->name, "org.freedesktop.systemd1.LoadFailed") ||
- streq(error->name, "org.freedesktop.systemd1.NoSuchUnit")) {
- /* This implementation does not exist, try next one */
- dbus_error_free(error);
- continue;
- }
-
- log_error("Failed to issue method call: %s", bus_error_message(error));
- r = -EIO;
- goto finish;
- }
+ if (streq_ptr(z, c->zone))
+ return sd_bus_reply_method_return(m, NULL);
- r = 0;
- goto finish;
+ r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-timezone", interactive, error, method_set_timezone, c);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+
+ t = strdup(z);
+ if (!t)
+ return -ENOMEM;
+
+ free(c->zone);
+ c->zone = t;
+
+ /* 1. Write new configuration file */
+ r = context_write_data_timezone(c);
+ if (r < 0) {
+ log_error("Failed to set time zone: %s", strerror(-r));
+ return sd_bus_error_set_errnof(error, r, "Failed to set time zone: %s", strerror(-r));
}
- /* No implementaiton available... */
- r = -ENOENT;
+ /* 2. Tell the kernel our timezone */
+ clock_set_timezone(NULL);
-finish:
- if (m)
- dbus_message_unref(m);
+ if (c->local_rtc) {
+ struct timespec ts;
+ struct tm *tm;
- if (reply)
- dbus_message_unref(reply);
+ /* 3. Sync RTC from system clock, with the new delta */
+ assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0);
+ assert_se(tm = localtime(&ts.tv_sec));
+ clock_set_hwclock(tm);
+ }
+
+ log_struct(LOG_INFO,
+ MESSAGE_ID(SD_MESSAGE_TIMEZONE_CHANGE),
+ "TIMEZONE=%s", c->zone,
+ "MESSAGE=Changed time zone to '%s'.", c->zone,
+ NULL);
- strv_free(l);
+ sd_bus_emit_properties_changed(bus, "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "Timezone", NULL);
- return r;
+ return sd_bus_reply_method_return(m, NULL);
}
-static int enable_ntp(DBusConnection *bus, DBusError *error) {
- DBusMessage *m = NULL, *reply = NULL;
+static int method_set_local_rtc(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) {
+ int lrtc, fix_system, interactive;
+ Context *c = userdata;
+ struct timespec ts;
int r;
- DBusMessageIter iter;
- dbus_bool_t f = FALSE, t = TRUE;
- char **i, **l;
assert(bus);
- assert(error);
-
- l = get_ntp_services();
- STRV_FOREACH(i, l) {
- char* k[2];
+ assert(m);
+ assert(c);
- if (m)
- dbus_message_unref(m);
- m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- tz.use_ntp ? "EnableUnitFiles" : "DisableUnitFiles");
- if (!m) {
- log_error("Could not allocate message.");
- r = -ENOMEM;
- goto finish;
- }
-
- dbus_message_iter_init_append(m, &iter);
+ r = sd_bus_message_read(m, "bbb", &lrtc, &fix_system, &interactive);
+ if (r < 0)
+ return r;
- k[0] = *i;
- k[1] = NULL;
+ if (lrtc == c->local_rtc)
+ return sd_bus_reply_method_return(m, NULL);
- r = bus_append_strv_iter(&iter, k);
- if (r < 0) {
- log_error("Failed to append unit files.");
- goto finish;
- }
+ r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-local-rtc", interactive, error, method_set_local_rtc, c);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1;
- /* send runtime bool */
- if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &f)) {
- log_error("Failed to append runtime boolean.");
- r = -ENOMEM;
- goto finish;
- }
+ c->local_rtc = lrtc;
- if (tz.use_ntp) {
- /* send force bool */
- if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &t)) {
- log_error("Failed to append force boolean.");
- r = -ENOMEM;
- goto finish;
- }
- }
+ /* 1. Write new configuration file */
+ r = context_write_data_local_rtc(c);
+ if (r < 0) {
+ log_error("Failed to set RTC to local/UTC: %s", strerror(-r));
+ return sd_bus_error_set_errnof(error, r, "Failed to set RTC to local/UTC: %s", strerror(-r));
+ }
- reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error);
- if (!reply) {
- if (streq(error->name, "org.freedesktop.DBus.Error.FileNotFound")) {
- /* This implementation does not exist, try next one */
- dbus_error_free(error);
- continue;
- }
-
- log_error("Failed to issue method call: %s", bus_error_message(error));
- r = -EIO;
- goto finish;
- }
+ /* 2. Tell the kernel our timezone */
+ clock_set_timezone(NULL);
- dbus_message_unref(m);
- m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "Reload");
- if (!m) {
- log_error("Could not allocate message.");
- r = -ENOMEM;
- goto finish;
- }
+ /* 3. Synchronize clocks */
+ assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0);
- dbus_message_unref(reply);
- reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error);
- if (!reply) {
- log_error("Failed to issue method call: %s", bus_error_message(error));
- r = -EIO;
- goto finish;
- }
+ if (fix_system) {
+ struct tm tm;
- r = 0;
- goto finish;
- }
-
- r = -ENOENT;
+ /* Sync system clock from RTC; first,
+ * initialize the timezone fields of
+ * struct tm. */
+ if (c->local_rtc)
+ tm = *localtime(&ts.tv_sec);
+ else
+ tm = *gmtime(&ts.tv_sec);
-finish:
- if (m)
- dbus_message_unref(m);
+ /* Override the main fields of
+ * struct tm, but not the timezone
+ * fields */
+ if (clock_get_hwclock(&tm) >= 0) {
- if (reply)
- dbus_message_unref(reply);
+ /* And set the system clock
+ * with this */
+ if (c->local_rtc)
+ ts.tv_sec = mktime(&tm);
+ else
+ ts.tv_sec = timegm(&tm);
- strv_free(l);
+ clock_settime(CLOCK_REALTIME, &ts);
+ }
- return r;
-}
+ } else {
+ struct tm *tm;
-static int property_append_can_ntp(DBusMessageIter *i, const char *property, void *data) {
- dbus_bool_t db;
+ /* Sync RTC from system clock */
+ if (c->local_rtc)
+ tm = localtime(&ts.tv_sec);
+ else
+ tm = gmtime(&ts.tv_sec);
- assert(i);
- assert(property);
+ clock_set_hwclock(tm);
+ }
- db = tz.can_ntp > 0;
+ log_info("RTC configured to %s time.", c->local_rtc ? "local" : "UTC");
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &db))
- return -ENOMEM;
+ sd_bus_emit_properties_changed(bus, "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "LocalRTC", NULL);
- return 0;
+ return sd_bus_reply_method_return(m, NULL);
}
-static int property_append_ntp(DBusMessageIter *i, const char *property, void *data) {
- dbus_bool_t db;
-
- assert(i);
- assert(property);
+static int method_set_time(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) {
+ int relative, interactive;
+ Context *c = userdata;
+ int64_t utc;
+ struct timespec ts;
+ struct tm* tm;
+ int r;
- db = tz.use_ntp > 0;
+ assert(bus);
+ assert(m);
+ assert(c);
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &db))
- return -ENOMEM;
+ if (c->use_ntp)
+ return sd_bus_error_setf(error, BUS_ERROR_AUTOMATIC_TIME_SYNC_ENABLED, "Automatic time synchronization is enabled");
- return 0;
-}
+ r = sd_bus_message_read(m, "xbb", &utc, &relative, &interactive);
+ if (r < 0)
+ return r;
-static const BusProperty bus_timedate_properties[] = {
- { "Timezone", bus_property_append_string, "s", offsetof(TZ, zone), true },
- { "LocalRTC", bus_property_append_bool, "b", offsetof(TZ, local_rtc) },
- { "CanNTP", property_append_can_ntp, "b", offsetof(TZ, can_ntp) },
- { "NTP", property_append_ntp, "b", offsetof(TZ, use_ntp) },
- { NULL, }
-};
+ if (!relative && utc <= 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid absolute time");
-static const BusBoundProperties bps[] = {
- { "org.freedesktop.timedate1", bus_timedate_properties, &tz },
- { NULL, }
-};
+ if (relative && utc == 0)
+ return sd_bus_reply_method_return(m, NULL);
-static DBusHandlerResult timedate_message_handler(
- DBusConnection *connection,
- DBusMessage *message,
- void *userdata) {
+ if (relative) {
+ usec_t n, x;
- DBusMessage *reply = NULL, *changed = NULL;
- DBusError error;
- int r;
+ n = now(CLOCK_REALTIME);
+ x = n + utc;
- assert(connection);
- assert(message);
-
- dbus_error_init(&error);
-
- if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetTimezone")) {
- const char *z;
- dbus_bool_t interactive;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_STRING, &z,
- DBUS_TYPE_BOOLEAN, &interactive,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(connection, message, &error, -EINVAL);
-
- if (!valid_timezone(z))
- return bus_send_error_reply(connection, message, NULL, -EINVAL);
-
- if (!streq_ptr(z, tz.zone)) {
- char *t;
-
- r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-timezone", interactive, NULL, &error);
- if (r < 0)
- return bus_send_error_reply(connection, message, &error, r);
-
- t = strdup(z);
- if (!t)
- goto oom;
-
- free(tz.zone);
- tz.zone = t;
-
- /* 1. Write new configuration file */
- r = write_data_timezone();
- if (r < 0) {
- log_error("Failed to set timezone: %s", strerror(-r));
- return bus_send_error_reply(connection, message, NULL, r);
- }
-
- /* 2. Tell the kernel our time zone */
- hwclock_set_timezone(NULL);
-
- if (tz.local_rtc) {
- struct timespec ts;
- struct tm *tm;
-
- /* 3. Sync RTC from system clock, with the new delta */
- assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0);
- assert_se(tm = localtime(&ts.tv_sec));
- hwclock_set_time(tm);
- }
-
- log_struct(LOG_INFO,
- MESSAGE_ID(SD_MESSAGE_TIMEZONE_CHANGE),
- "TIMEZONE=%s", tz.zone,
- "MESSAGE=Changed timezone to '%s'.", tz.zone,
- NULL);
-
- changed = bus_properties_changed_new(
- "/org/freedesktop/timedate1",
- "org.freedesktop.timedate1",
- "Timezone\0");
- if (!changed)
- goto oom;
- }
+ if ((utc > 0 && x < n) ||
+ (utc < 0 && x > n))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Time value overflow");
- } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetLocalRTC")) {
- dbus_bool_t lrtc;
- dbus_bool_t fix_system;
- dbus_bool_t interactive;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_BOOLEAN, &lrtc,
- DBUS_TYPE_BOOLEAN, &fix_system,
- DBUS_TYPE_BOOLEAN, &interactive,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(connection, message, &error, -EINVAL);
-
- if (lrtc != tz.local_rtc) {
- struct timespec ts;
-
- r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-local-rtc", interactive, NULL, &error);
- if (r < 0)
- return bus_send_error_reply(connection, message, &error, r);
-
- tz.local_rtc = lrtc;
-
- /* 1. Write new configuration file */
- r = write_data_local_rtc();
- if (r < 0) {
- log_error("Failed to set RTC to local/UTC: %s", strerror(-r));
- return bus_send_error_reply(connection, message, NULL, r);
- }
-
- /* 2. Tell the kernel our time zone */
- hwclock_set_timezone(NULL);
-
- /* 3. Synchronize clocks */
- assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0);
-
- if (fix_system) {
- struct tm tm;
-
- /* Sync system clock from RTC; first,
- * initialize the timezone fields of
- * struct tm. */
- if (tz.local_rtc)
- tm = *localtime(&ts.tv_sec);
- else
- tm = *gmtime(&ts.tv_sec);
-
- /* Override the main fields of
- * struct tm, but not the timezone
- * fields */
- if (hwclock_get_time(&tm) >= 0) {
-
- /* And set the system clock
- * with this */
- if (tz.local_rtc)
- ts.tv_sec = mktime(&tm);
- else
- ts.tv_sec = timegm(&tm);
-
- clock_settime(CLOCK_REALTIME, &ts);
- }
-
- } else {
- struct tm *tm;
-
- /* Sync RTC from system clock */
- if (tz.local_rtc)
- tm = localtime(&ts.tv_sec);
- else
- tm = gmtime(&ts.tv_sec);
-
- hwclock_set_time(tm);
- }
-
- log_info("RTC configured to %s time.", tz.local_rtc ? "local" : "UTC");
-
- changed = bus_properties_changed_new(
- "/org/freedesktop/timedate1",
- "org.freedesktop.timedate1",
- "LocalRTC\0");
- if (!changed)
- goto oom;
- }
+ timespec_store(&ts, x);
+ } else
+ timespec_store(&ts, (usec_t) utc);
- } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetTime")) {
- int64_t utc;
- dbus_bool_t relative;
- dbus_bool_t interactive;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_INT64, &utc,
- DBUS_TYPE_BOOLEAN, &relative,
- DBUS_TYPE_BOOLEAN, &interactive,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(connection, message, &error, -EINVAL);
-
- if (!relative && utc <= 0)
- return bus_send_error_reply(connection, message, NULL, -EINVAL);
-
- if (!relative || utc != 0) {
- struct timespec ts;
- struct tm* tm;
-
- if (relative) {
- usec_t n, x;
-
- n = now(CLOCK_REALTIME);
- x = n + utc;
-
- if ((utc > 0 && x < n) ||
- (utc < 0 && x > n))
- return bus_send_error_reply(connection, message, NULL, -EOVERFLOW);
-
- timespec_store(&ts, x);
- } else
- timespec_store(&ts, (usec_t) utc);
-
- r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-time", interactive, NULL, &error);
- if (r < 0)
- return bus_send_error_reply(connection, message, &error, r);
-
- /* Set system clock */
- if (clock_settime(CLOCK_REALTIME, &ts) < 0) {
- log_error("Failed to set local time: %m");
- return bus_send_error_reply(connection, message, NULL, -errno);
- }
-
- /* Sync down to RTC */
- if (tz.local_rtc)
- tm = localtime(&ts.tv_sec);
- else
- tm = gmtime(&ts.tv_sec);
+ r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-time", interactive, error, method_set_time, c);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1;
- hwclock_set_time(tm);
+ /* Set system clock */
+ if (clock_settime(CLOCK_REALTIME, &ts) < 0) {
+ log_error("Failed to set local time: %m");
+ return sd_bus_error_set_errnof(error, errno, "Failed to set local time: %m");
+ }
- log_struct(LOG_INFO,
- MESSAGE_ID(SD_MESSAGE_TIME_CHANGE),
- "REALTIME=%llu", (unsigned long long) timespec_load(&ts),
- "MESSAGE=Changed local time to %s", ctime(&ts.tv_sec),
- NULL);
- }
- } else if (dbus_message_is_method_call(message, "org.freedesktop.timedate1", "SetNTP")) {
- dbus_bool_t ntp;
- dbus_bool_t interactive;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_BOOLEAN, &ntp,
- DBUS_TYPE_BOOLEAN, &interactive,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(connection, message, &error, -EINVAL);
-
- if (ntp != !!tz.use_ntp) {
-
- r = verify_polkit(connection, message, "org.freedesktop.timedate1.set-ntp", interactive, NULL, &error);
- if (r < 0)
- return bus_send_error_reply(connection, message, &error, r);
-
- tz.use_ntp = !!ntp;
-
- r = enable_ntp(connection, &error);
- if (r < 0)
- return bus_send_error_reply(connection, message, &error, r);
-
- r = start_ntp(connection, &error);
- if (r < 0)
- return bus_send_error_reply(connection, message, &error, r);
-
- log_info("Set NTP to %s", tz.use_ntp ? "enabled" : "disabled");
-
- changed = bus_properties_changed_new(
- "/org/freedesktop/timedate1",
- "org.freedesktop.timedate1",
- "NTP\0");
- if (!changed)
- goto oom;
- }
+ /* Sync down to RTC */
+ if (c->local_rtc)
+ tm = localtime(&ts.tv_sec);
+ else
+ tm = gmtime(&ts.tv_sec);
+ clock_set_hwclock(tm);
- } else
- return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps);
+ log_struct(LOG_INFO,
+ MESSAGE_ID(SD_MESSAGE_TIME_CHANGE),
+ "REALTIME="USEC_FMT, timespec_load(&ts),
+ "MESSAGE=Changed local time to %s", ctime(&ts.tv_sec),
+ NULL);
- if (!(reply = dbus_message_new_method_return(message)))
- goto oom;
+ return sd_bus_reply_method_return(m, NULL);
+}
- if (!bus_maybe_send_reply(connection, message, reply))
- goto oom;
+static int method_set_ntp(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) {
+ int ntp, interactive;
+ Context *c = userdata;
+ int r;
- dbus_message_unref(reply);
- reply = NULL;
+ r = sd_bus_message_read(m, "bb", &ntp, &interactive);
+ if (r < 0)
+ return r;
- if (changed) {
+ if ((bool)ntp == c->use_ntp)
+ return sd_bus_reply_method_return(m, NULL);
- if (!dbus_connection_send(connection, changed, NULL))
- goto oom;
+ r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-ntp", interactive, error, method_set_ntp, c);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1;
- dbus_message_unref(changed);
- }
+ c->use_ntp = ntp;
- return DBUS_HANDLER_RESULT_HANDLED;
+ r = context_enable_ntp(c, bus, error);
+ if (r < 0)
+ return r;
-oom:
- if (reply)
- dbus_message_unref(reply);
+ r = context_start_ntp(c, bus, error);
+ if (r < 0)
+ return r;
- if (changed)
- dbus_message_unref(changed);
+ log_info("Set NTP to %s", c->use_ntp ? "enabled" : "disabled");
- dbus_error_free(&error);
+ sd_bus_emit_properties_changed(bus, "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "NTP", NULL);
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
+ return sd_bus_reply_method_return(m, NULL);
}
-static int connect_bus(DBusConnection **_bus) {
- static const DBusObjectPathVTable timedate_vtable = {
- .message_function = timedate_message_handler
- };
- DBusError error;
- DBusConnection *bus = NULL;
+static const sd_bus_vtable timedate_vtable[] = {
+ SD_BUS_VTABLE_START(0),
+ SD_BUS_PROPERTY("Timezone", "s", NULL, offsetof(Context, zone), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("LocalRTC", "b", bus_property_get_bool, offsetof(Context, local_rtc), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("CanNTP", "b", bus_property_get_bool, offsetof(Context, can_ntp), 0),
+ SD_BUS_PROPERTY("NTP", "b", bus_property_get_bool, offsetof(Context, use_ntp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("NTPSynchronized", "b", property_get_ntp_sync, 0, 0),
+ SD_BUS_PROPERTY("TimeUSec", "t", property_get_time, 0, 0),
+ SD_BUS_PROPERTY("RTCTimeUSec", "t", property_get_rtc_time, 0, 0),
+ SD_BUS_METHOD("SetTime", "xbb", NULL, method_set_time, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetTimezone", "sb", NULL, method_set_timezone, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetLocalRTC", "bbb", NULL, method_set_local_rtc, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetNTP", "bb", NULL, method_set_ntp, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_VTABLE_END,
+};
+
+static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) {
+ _cleanup_bus_close_unref_ sd_bus *bus = NULL;
int r;
+ assert(c);
+ assert(event);
assert(_bus);
- dbus_error_init(&error);
-
- bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
- if (!bus) {
- log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error));
- r = -ECONNREFUSED;
- goto fail2;
+ r = sd_bus_default_system(&bus);
+ if (r < 0) {
+ log_error("Failed to get system bus connection: %s", strerror(-r));
+ return r;
}
- dbus_connection_set_exit_on_disconnect(bus, FALSE);
-
- if (!dbus_connection_register_object_path(bus, "/org/freedesktop/timedate1", &timedate_vtable, NULL) ||
- !dbus_connection_add_filter(bus, bus_exit_idle_filter, &remain_until, NULL)) {
- r = log_oom();
- goto fail;
+ r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/timedate1", "org.freedesktop.timedate1", timedate_vtable, c);
+ if (r < 0) {
+ log_error("Failed to register object: %s", strerror(-r));
+ return r;
}
- r = dbus_bus_request_name(bus, "org.freedesktop.timedate1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error);
- if (dbus_error_is_set(&error)) {
- log_error("Failed to register name on bus: %s", bus_error_message(&error));
- r = -EEXIST;
- goto fail;
+ r = sd_bus_request_name(bus, "org.freedesktop.timedate1", 0);
+ if (r < 0) {
+ log_error("Failed to register name: %s", strerror(-r));
+ return r;
}
- if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
- log_error("Failed to acquire name.");
- r = -EEXIST;
- goto fail;
+ r = sd_bus_attach_event(bus, event, 0);
+ if (r < 0) {
+ log_error("Failed to attach bus to event loop: %s", strerror(-r));
+ return r;
}
- if (_bus)
- *_bus = bus;
+ *_bus = bus;
+ bus = NULL;
return 0;
-
-fail:
- dbus_connection_close(bus);
- dbus_connection_unref(bus);
-fail2:
- dbus_error_free(&error);
-
- return r;
}
int main(int argc, char *argv[]) {
+ Context context = {};
+ _cleanup_event_unref_ sd_event *event = NULL;
+ _cleanup_bus_close_unref_ sd_bus *bus = NULL;
int r;
- DBusConnection *bus = NULL;
- bool exiting = false;
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
umask(0022);
- if (argc == 2 && streq(argv[1], "--introspect")) {
- fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
- "<node>\n", stdout);
- fputs(timedate_interface, stdout);
- fputs("</node>\n", stdout);
- return 0;
- }
-
if (argc != 1) {
log_error("This program takes no arguments.");
r = -EINVAL;
goto finish;
}
- r = read_data();
+ r = sd_event_default(&event);
if (r < 0) {
- log_error("Failed to read timezone data: %s", strerror(-r));
+ log_error("Failed to allocate event loop: %s", strerror(-r));
goto finish;
}
- r = connect_bus(&bus);
+ sd_event_set_watchdog(event, true);
+
+ r = connect_bus(&context, event, &bus);
if (r < 0)
goto finish;
- r = read_ntp(bus);
+ r = context_read_data(&context);
if (r < 0) {
- log_error("Failed to determine whether NTP is enabled: %s", strerror(-r));
+ log_error("Failed to read time zone data: %s", strerror(-r));
goto finish;
}
- remain_until = now(CLOCK_MONOTONIC) + DEFAULT_EXIT_USEC;
- for (;;) {
-
- if (!dbus_connection_read_write_dispatch(bus, exiting ? -1 : (int) (DEFAULT_EXIT_USEC/USEC_PER_MSEC)))
- break;
-
- if (!exiting && remain_until < now(CLOCK_MONOTONIC)) {
- exiting = true;
- bus_async_unregister_and_exit(bus, "org.freedesktop.timedated1");
- }
+ r = context_read_ntp(&context, bus);
+ if (r < 0) {
+ log_error("Failed to determine whether NTP is enabled: %s", strerror(-r));
+ goto finish;
}
- r = 0;
+ r = bus_event_loop_with_idle(event, bus, "org.freedesktop.timedate1", DEFAULT_EXIT_USEC, NULL, NULL);
+ if (r < 0) {
+ log_error("Failed to run event loop: %s", strerror(-r));
+ goto finish;
+ }
finish:
- free_data();
-
- if (bus) {
- dbus_connection_flush(bus);
- dbus_connection_close(bus);
- dbus_connection_unref(bus);
- }
+ context_free(&context);
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
~ianmdlvl / elogind.git / blobdiff