121 lines
3.1 KiB
Bash
Executable File
121 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# $FreeBSD$
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#
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# PROVIDE: ntpd
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# REQUIRE: DAEMON ntpdate FILESYSTEMS devfs
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# BEFORE: LOGIN
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# KEYWORD: nojail shutdown
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. /etc/rc.subr
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name="ntpd"
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rcvar="ntpd_enable"
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command="/usr/sbin/${name}"
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pidfile="/var/run/${name}.pid"
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extra_commands="fetch"
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fetch_cmd="ntpd_fetch_leapfile"
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start_precmd="ntpd_precmd"
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load_rc_config $name
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ntpd_precmd()
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{
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rc_flags="-c ${ntpd_config} ${ntpd_flags}"
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if checkyesno ntpd_sync_on_start; then
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rc_flags="-g $rc_flags"
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fi
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if [ ! -f $ntp_db_leapfile ]; then
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ntpd_fetch_leapfile
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fi
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if [ -z "$ntpd_chrootdir" ]; then
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return 0;
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fi
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# If running in a chroot cage, ensure that the appropriate files
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# exist inside the cage, as well as helper symlinks into the cage
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# from outside.
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#
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# As this is called after the is_running and required_dir checks
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# are made in run_rc_command(), we can safely assume ${ntpd_chrootdir}
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# exists and ntpd isn't running at this point (unless forcestart
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# is used).
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#
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if [ ! -c "${ntpd_chrootdir}/dev/clockctl" ]; then
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rm -f "${ntpd_chrootdir}/dev/clockctl"
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( cd /dev ; /bin/pax -rw -pe clockctl "${ntpd_chrootdir}/dev" )
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fi
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ln -fs "${ntpd_chrootdir}/var/db/ntp.drift" /var/db/ntp.drift
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ln -fs "${ntpd_chrootdir}${ntp_tmp_leapfile}" ${ntp_tmp_leapfile}
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# Change run_rc_commands()'s internal copy of $ntpd_flags
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#
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rc_flags="-u ntpd:ntpd -i ${ntpd_chrootdir} $rc_flags"
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}
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current_ntp_ts() {
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# Seconds between 1900-01-01 and 1970-01-01
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# echo $(((70*365+17)*86400))
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ntp_to_unix=2208988800
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echo $(($(date -u +%s)+$ntp_to_unix))
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}
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get_ntp_leapfile_ver() {
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expr "$(awk '$1 == "#$" { print $2 }' "$1" 2>/dev/null)" : \
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'^\([1-9][0-9]*\)$' \| 0
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}
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get_ntp_leapfile_expiry() {
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expr "$(awk '$1 == "#@" { print $2 }' "$1" 2>/dev/null)" : \
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'^\([1-9][0-9]*\)$' \| 0
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}
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ntpd_fetch_leapfile() {
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local ntp_tmp_leapfile rc verbose
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if checkyesno ntp_leapfile_fetch_verbose; then
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verbose=echo
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else
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verbose=:
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fi
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ntp_tmp_leapfile="/var/run/ntpd.leap-seconds.list"
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ntp_ver_no_src=$(get_ntp_leapfile_ver $ntp_src_leapfile)
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ntp_ver_no_db=$(get_ntp_leapfile_ver $ntp_db_leapfile)
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$verbose ntp_src_leapfile version is $ntp_ver_no_src
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$verbose ntp_db_leapfile version is $ntp_ver_no_db
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if [ "$ntp_ver_no_src" -gt "$ntp_ver_no_db" ]; then
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$verbose replacing $ntp_db_leapfile with $ntp_src_leapfile
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cp -p $ntp_src_leapfile $ntp_db_leapfile
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ntp_ver_no_db=$ntp_ver_no_src
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else
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$verbose not replacing $ntp_db_leapfile with $ntp_src_leapfile
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fi
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ntp_leap_expiry=$(get_ntp_leapfile_expiry $ntp_db_leapfile)
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ntp_leapfile_expiry_seconds=$((ntp_leapfile_expiry_days*86400))
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ntp_leap_fetch_date=$((ntp_leap_expiry-ntp_leapfile_expiry_seconds))
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if [ $(current_ntp_ts) -ge $ntp_leap_fetch_date ]; then
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$verbose Within ntp leapfile expiry limit, initiating fetch
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for url in $ntp_leapfile_sources ; do
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$verbose fetching $url
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fetch $ntp_leapfile_fetch_opts -o $ntp_tmp_leapfile $url && break
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done
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ntp_ver_no_tmp=$(get_ntp_leapfile_ver $ntp_tmp_leapfile)
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if [ "$ntp_ver_no_tmp" -gt "$ntp_ver_no_db" ]; then
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$verbose using $url as $ntp_db_leapfile
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mv $ntp_tmp_leapfile $ntp_db_leapfile
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else
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$verbose using existing $ntp_db_leapfile
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fi
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fi
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}
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run_rc_command "$1"
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