X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Ftimedate%2Ftimedated.c;h=9ca2eec5a8aa18ea3ae7ad0443c8c5721a3f14ff;hb=92c4ef2d357baeef78b6f82f119b92f7ed12ac77;hp=6a7d980c3e9e9b484d3e79748756f766e9c32583;hpb=19c5f19d69bb5f520fa7213239490c55de06d99d;p=elogind.git
diff --git a/src/timedate/timedated.c b/src/timedate/timedated.c
index 6a7d980c3..9ca2eec5a 100644
--- a/src/timedate/timedated.c
+++ b/src/timedate/timedated.c
@@ -6,16 +6,16 @@
Copyright 2011 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ 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
- General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see .
***/
@@ -25,11 +25,15 @@
#include
#include
+#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 "conf-files.h"
#define NULL_ADJTIME_UTC "0.0 0 0\n0\nUTC\n"
#define NULL_ADJTIME_LOCAL "0.0 0 0\n0\nLOCAL\n"
@@ -72,6 +76,9 @@
BUS_GENERIC_INTERFACES_LIST \
"org.freedesktop.timedate1\0"
+/* Must start and end with '/' */
+#define ZONEINFO_PATH "/usr/share/zoneinfo/"
+
const char timedate_interface[] _introspect_("timedate1") = INTERFACE;
typedef struct TZ {
@@ -125,7 +132,7 @@ static bool valid_timezone(const char *name) {
if (slash)
return false;
- t = strappend("/usr/share/zoneinfo/", name);
+ t = strappend(ZONEINFO_PATH, name);
if (!t)
return false;
@@ -149,17 +156,17 @@ static void verify_timezone(void) {
if (!tz.zone)
return;
- p = strappend("/usr/share/zoneinfo/", tz.zone);
+ p = strappend(ZONEINFO_PATH, tz.zone);
if (!p) {
- log_error("Out of memory");
+ log_oom();
return;
}
- j = read_full_file("/etc/localtime", &a, &l);
k = read_full_file(p, &b, &q);
-
free(p);
+ j = read_full_file("/etc/localtime", &a, &l);
+
if (j < 0 || k < 0 || l != q || memcmp(a, b, l)) {
log_warning("/etc/localtime and /etc/timezone out of sync.");
free(tz.zone);
@@ -172,9 +179,34 @@ static void verify_timezone(void) {
static int read_data(void) {
int r;
+ char *t = NULL;
free_data();
+ 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 " ZONEINFO_PATH);
+ else
+ log_warning("Failed to get target of %s: %s", "/etc/localtime", strerror(-r));
+ } else {
+ /* we only support the trivial relative link of (/etc/)..$ABSOLUTE */
+ int rel_link_offset = startswith(t, "..") ? strlen("..") : 0;
+
+ if (!startswith(t + rel_link_offset, ZONEINFO_PATH))
+ log_warning("/etc/localtime should be a symbolic link to a timezone data file in " ZONEINFO_PATH);
+ else {
+ tz.zone = strdup(t + rel_link_offset + strlen(ZONEINFO_PATH));
+ free(t);
+ if (!tz.zone)
+ return log_oom();
+
+ goto have_timezone;
+ }
+ }
+
+ free(t);
+
r = read_one_line_file("/etc/timezone", &tz.zone);
if (r < 0) {
if (r != -ENOENT)
@@ -190,6 +222,7 @@ static int read_data(void) {
#endif
}
+have_timezone:
if (isempty(tz.zone)) {
free(tz.zone);
tz.zone = NULL;
@@ -205,6 +238,7 @@ static int read_data(void) {
static int write_data_timezone(void) {
int r = 0;
char *p;
+ struct stat st;
if (!tz.zone) {
if (unlink("/etc/timezone") < 0 && errno != ENOENT)
@@ -216,21 +250,21 @@ static int write_data_timezone(void) {
return r;
}
- p = strappend("/usr/share/zoneinfo/", tz.zone);
- if (!p) {
- log_error("Out of memory");
- return -ENOMEM;
- }
+ p = strappend(ZONEINFO_PATH, tz.zone);
+ if (!p)
+ return log_oom();
- r = symlink_or_copy_atomic(p, "/etc/localtime");
+ r = symlink(p, "/etc/localtime");
free(p);
if (r < 0)
- return r;
+ return -errno;
- r = write_one_line_file_atomic("/etc/timezone", tz.zone);
- if (r < 0)
- return r;
+ if (stat("/etc/timezone", &st) == 0 && S_ISREG(st.st_mode)) {
+ r = write_one_line_file_atomic("/etc/timezone", tz.zone);
+ if (r < 0)
+ return r;
+ }
return 0;
}
@@ -302,62 +336,124 @@ static int write_data_local_rtc(void) {
return r;
}
+static char** get_ntp_services(void) {
+ char **r = NULL, **files, **i;
+ int k;
+
+ k = conf_files_list(&files, ".list",
+ "/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;
+
+ STRV_FOREACH(i, files) {
+ FILE *f;
+
+ f = fopen(*i, "re");
+ if (!f)
+ continue;
+
+ for (;;) {
+ char line[PATH_MAX], *l, **q;
+
+ if (!fgets(line, sizeof(line), f)) {
+
+ if (ferror(f))
+ log_error("Failed to read NTP units file: %m");
+
+ break;
+ }
+
+ l = strstrip(line);
+ if (l[0] == 0 || l[0] == '#')
+ continue;
+
+ q = strv_append(r, l);
+ if (!q) {
+ log_oom();
+ break;
+ }
+
+ strv_free(r);
+ r = q;
+ }
+
+ fclose(f);
+ }
+
+ strv_free(files);
+
+ return strv_uniq(r);
+}
+
static int read_ntp(DBusConnection *bus) {
DBusMessage *m = NULL, *reply = NULL;
- const char *name = "ntpd.service", *s;
DBusError error;
int r;
+ char **i, **l;
assert(bus);
dbus_error_init(&error);
- m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "GetUnitFileState");
-
- if (!m) {
- log_error("Out of memory");
- r = -ENOMEM;
- goto finish;
- }
+ l = get_ntp_services();
+ STRV_FOREACH(i, l) {
+ const char *s;
+
+ if (m)
+ dbus_message_unref(m);
+ m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "GetUnitFileState");
+ if (!m) {
+ r = log_oom();
+ goto finish;
+ }
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, i,
+ DBUS_TYPE_INVALID)) {
+ r = log_oom();
+ goto finish;
+ }
- reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
- if (!reply) {
+ if (reply)
+ dbus_message_unref(reply);
+ 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;
+ }
- if (streq(error.name, "org.freedesktop.DBus.Error.FileNotFound")) {
- /* NTP is not installed. */
- tz.use_ntp = false;
- r = 0;
+ log_error("Failed to issue method call: %s", bus_error_message(&error));
+ r = -EIO;
goto finish;
}
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
+ 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;
+ }
- 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;
+ tz.use_ntp =
+ streq(s, "enabled") ||
+ streq(s, "enabled-runtime");
+ r = 0;
goto finish;
}
- tz.use_ntp =
- streq(s, "enabled") ||
- streq(s, "enabled-runtime");
+ /* NTP is not installed. */
+ tz.use_ntp = 0;
r = 0;
finish:
@@ -367,6 +463,8 @@ finish:
if (reply)
dbus_message_unref(reply);
+ strv_free(l);
+
dbus_error_free(&error);
return r;
@@ -374,40 +472,60 @@ finish:
static int start_ntp(DBusConnection *bus, DBusError *error) {
DBusMessage *m = NULL, *reply = NULL;
- const char *name = "ntpd.service", *mode = "replace";
+ const char *mode = "replace";
+ char **i, **l;
int r;
assert(bus);
assert(error);
- 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;
- }
+ 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;
+ }
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_STRING, &mode,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
+ 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;
+ }
- 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;
+ if (reply)
+ dbus_message_unref(reply);
+ 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;
+ }
+
+ r = 0;
goto finish;
}
- r = 0;
+ /* No implementaiton available... */
+ r = -ENOENT;
finish:
if (m)
@@ -416,82 +534,105 @@ finish:
if (reply)
dbus_message_unref(reply);
+ strv_free(l);
+
return r;
}
static int enable_ntp(DBusConnection *bus, DBusError *error) {
DBusMessage *m = NULL, *reply = NULL;
- const char * const names[] = { "ntpd.service", NULL };
int r;
DBusMessageIter iter;
dbus_bool_t f = FALSE, t = TRUE;
+ char **i, **l;
assert(bus);
assert(error);
- m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- tz.use_ntp ? "EnableUnitFiles" : "DisableUnitFiles");
+ l = get_ntp_services();
+ STRV_FOREACH(i, l) {
+ char* k[2];
+
+ 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;
+ }
- if (!m) {
- log_error("Could not allocate message.");
- r = -ENOMEM;
- goto finish;
- }
+ dbus_message_iter_init_append(m, &iter);
- dbus_message_iter_init_append(m, &iter);
+ k[0] = *i;
+ k[1] = NULL;
- r = bus_append_strv_iter(&iter, (char**) names);
- if (r < 0) {
- log_error("Failed to append unit files.");
- goto finish;
- }
- /* 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;
- }
+ r = bus_append_strv_iter(&iter, k);
+ if (r < 0) {
+ log_error("Failed to append unit files.");
+ goto finish;
+ }
- 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.");
+ /* 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;
}
- }
- 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 (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;
+ }
+ }
- 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;
- }
+ if (reply)
+ dbus_message_unref(reply);
+ 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;
+ }
- 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;
+ log_error("Failed to issue method call: %s", bus_error_message(error));
+ r = -EIO;
+ goto finish;
+ }
+
+ 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;
+ }
+
+ 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;
+ }
+
+ r = 0;
goto finish;
}
- r = 0;
+ r = -ENOENT;
finish:
if (m)
@@ -500,6 +641,8 @@ finish:
if (reply)
dbus_message_unref(reply);
+ strv_free(l);
+
return r;
}
@@ -592,7 +735,11 @@ static DBusHandlerResult timedate_message_handler(
hwclock_set_time(tm);
}
- log_info("Changed timezone to '%s'.", tz.zone);
+ log_struct(LOG_INFO,
+ "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(SD_MESSAGE_TIMEZONE_CHANGE),
+ "TIMEZONE=%s", tz.zone,
+ "MESSAGE=Changed timezone to '%s'.", tz.zone,
+ NULL);
changed = bus_properties_changed_new(
"/org/freedesktop/timedate1",
@@ -733,7 +880,11 @@ static DBusHandlerResult timedate_message_handler(
hwclock_set_time(tm);
- log_info("Changed local time to %s", ctime(&ts.tv_sec));
+ log_struct(LOG_INFO,
+ "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(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;
@@ -830,8 +981,7 @@ static int connect_bus(DBusConnection **_bus) {
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)) {
- log_error("Not enough memory");
- r = -ENOMEM;
+ r = log_oom();
goto fail;
}