diff options
Diffstat (limited to '')
-rw-r--r-- | src/timesync/timesyncd.c | 55 |
1 files changed, 26 insertions, 29 deletions
diff --git a/src/timesync/timesyncd.c b/src/timesync/timesyncd.c index 709c64375e..c34f0dba81 100644 --- a/src/timesync/timesyncd.c +++ b/src/timesync/timesyncd.c @@ -27,48 +27,45 @@ static int load_clock_timestamp(uid_t uid, gid_t gid) { _cleanup_close_ int fd = -EBADF; int r; - /* Let's try to make sure that the clock is always - * monotonically increasing, by saving the clock whenever we - * have a new NTP time, or when we shut down, and restoring it - * when we start again. This is particularly helpful on - * systems lacking a battery backed RTC. We also will adjust - * the time to at least the build time of systemd. */ + /* Let's try to make sure that the clock is always monotonically increasing, by saving the clock + * whenever we have a new NTP time, or when we shut down, and restoring it when we start again. This + * is particularly helpful on systems lacking a battery backed RTC. We also will adjust the time to + * at least the build time of systemd. */ fd = open(CLOCK_FILE, O_RDWR|O_CLOEXEC, 0644); - if (fd >= 0) { - struct stat st; - usec_t stamp; - - /* check if the recorded time is later than the compiled-in one */ - if (fstat(fd, &st) >= 0) { - stamp = timespec_load(&st.st_mtim); - if (stamp > min) - min = stamp; - } - - if (geteuid() == 0) { - /* Try to fix the access mode, so that we can still - touch the file after dropping privileges */ - r = fchmod_and_chown(fd, 0644, uid, gid); - if (r < 0) - log_warning_errno(r, "Failed to chmod or chown %s, ignoring: %m", CLOCK_FILE); - } + if (fd < 0) { + if (errno != ENOENT) + log_debug_errno(errno, "Unable to open timestamp file '" CLOCK_FILE "', ignoring: %m"); - } else { r = mkdir_safe_label(STATE_DIR, 0755, uid, gid, MKDIR_FOLLOW_SYMLINK | MKDIR_WARN_MODE); - if (r < 0) { + if (r < 0) log_debug_errno(r, "Failed to create state directory, ignoring: %m"); - goto settime; - } /* create stamp file with the compiled-in date */ r = touch_file(CLOCK_FILE, /* parents= */ false, min, uid, gid, 0644); if (r < 0) log_debug_errno(r, "Failed to create %s, ignoring: %m", CLOCK_FILE); + } else { + struct stat st; + usec_t stamp; + + /* check if the recorded time is later than the compiled-in one */ + if (fstat(fd, &st) < 0) + return log_error_errno(errno, "Unable to stat timestamp file '" CLOCK_FILE "': %m"); + + stamp = timespec_load(&st.st_mtim); + if (stamp > min) + min = stamp; + + /* Try to fix the access mode, so that we can still touch the file after dropping + * privileges */ + r = fchmod_and_chown(fd, 0644, uid, gid); + if (r < 0) + log_full_errno(ERRNO_IS_PRIVILEGE(r) ? LOG_DEBUG : LOG_WARNING, r, + "Failed to chmod or chown %s, ignoring: %m", CLOCK_FILE); } -settime: ct = now(CLOCK_REALTIME); if (ct > min) return 0; |