dde7644292
and checks if ntp leapfile needs fetching before entering into the anticongestion sleep. Unfortunately some ports still use their own sleeps so, this commit doesn't address the complete problem which is compounded by every port that uses its own anticongestion mechanism. Discussed with: asomers
159 lines
4.2 KiB
Bash
Executable File
159 lines
4.2 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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desc="Network Time Protocol daemon"
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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 needfetch"
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fetch_cmd="ntpd_fetch_leapfile"
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needfetch_cmd="ntpd_needfetch_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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ntpd_init_leapfile
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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)+$ntp_to_unix))
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}
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get_ntp_leapfile_ver() {
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# Leapfile update date (version number).
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expr "$(awk '$1 == "#$" { print $2 }' "$1" 2>/dev/null)" : \
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'^\([1-9][0-9]*\)$' \| 0
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}
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get_ntp_leapfile_expiry() {
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# Leapfile expiry date.
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expr "$(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_init_leapfile() {
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# Refresh working leapfile with an invalid hash due to
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# FreeBSD id header. Ntpd will ignore leapfiles with a
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# mismatch hash. The file must be the virgin file from
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# the source.
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if [ ! -f $ntp_db_leapfile ]; then
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cp -p $ntp_src_leapfile $ntp_db_leapfile
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fi
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}
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ntpd_needfetch_leapfile() {
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local ntp_tmp_leapfile rc verbose
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if checkyesno ntp_leapfile_fetch_verbose; then
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verbose=echo
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else
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verbose=:
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fi
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ntp_tmp_leapfile="/var/run/ntpd.leap-seconds.list"
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ntp_ver_no_src=$(get_ntp_leapfile_ver $ntp_src_leapfile)
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ntp_expiry_src=$(get_ntp_leapfile_expiry $ntp_src_leapfile)
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ntp_ver_no_db=$(get_ntp_leapfile_ver $ntp_db_leapfile)
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ntp_expiry_db=$(get_ntp_leapfile_expiry $ntp_db_leapfile)
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$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 "$ntp_ver_no_db" -o \
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"$ntp_ver_no_src" -eq "$ntp_ver_no_db" -a \
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"$ntp_expiry_src" -gt "$ntp_expiry_db" ]; then
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$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 $ntp_src_leapfile
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fi
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ntp_leapfile_expiry_seconds=$((ntp_leapfile_expiry_days*86400))
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ntp_leap_expiry=$(get_ntp_leapfile_expiry $ntp_db_leapfile)
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ntp_leap_fetch_date=$((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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# Return code 0: ntp leapfile fetch needed
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return 0
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fi
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# Return code 1: ntp leapfile fetch not needed
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return 1
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}
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ntpd_fetch_leapfile() {
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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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if ntpd_needfetch_leapfile ; then
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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 $ntp_tmp_leapfile)
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ntp_expiry_tmp=$(get_ntp_leapfile_expiry $ntp_tmp_leapfile)
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if [ "$ntp_ver_no_tmp" -gt "$ntp_ver_no_db" -o \
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"$ntp_ver_no_tmp" -eq "$ntp_ver_no_db" -a \
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"$ntp_expiry_tmp" -gt "$ntp_expiry_db" ]; then
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$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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