7 # REQUIRE: DAEMON ntpdate FILESYSTEMS devfs
9 # KEYWORD: nojail shutdown
14 desc="Network Time Protocol daemon"
16 command="/usr/sbin/${name}"
17 extra_commands="fetch needfetch"
18 fetch_cmd="ntpd_fetch_leapfile"
19 needfetch_cmd="ntpd_needfetch_leapfile"
20 start_precmd="ntpd_precmd"
22 _ntp_tmp_leapfile="/var/run/ntpd.leap-seconds.list"
23 _ntp_default_dir="/var/db/ntp"
24 _ntp_default_driftfile="${_ntp_default_dir}/ntpd.drift"
25 _ntp_old_driftfile="/var/db/ntpd.drift"
27 pidfile="${_ntp_default_dir}/${name}.pid"
33 # If the admin set what uid to use, we don't change it.
34 if [ -n "${ntpd_user}" ]; then
38 # If the admin set any command line options involving files, we
39 # may not be able to access them as user ntpd.
41 *-f* | *--driftfile* | *-i* | *--jaildir* | \
42 *-k* | *--keyfile* | *-l* | *--logfile* | \
43 *-p* | *--pidfile* | *-s* | *--statsdir* )
47 # If the admin set any options in ntp.conf involving files,
48 # we may not be able to access them as user ntpd.
49 local fileopts="^[ \t]*crypto|^[ \t]*driftfile|^[ \t]*key|^[ \t]*logfile|^[ \t]*statsdir"
50 grep -E -q "${fileopts}" "${ntpd_config}" && return 1
52 # Try to set up the the MAC ntpd policy so ntpd can run with reduced
53 # privileges. Detect whether MAC is compiled into the kernel, load
54 # the policy module if not already present, then check whether the
55 # policy has been disabled via tunable or sysctl.
56 [ -n "$(sysctl -qn security.mac.version)" ] || return 1
57 sysctl -qn security.mac.ntpd >/dev/null || kldload -qn mac_ntpd || return 1
58 [ "$(sysctl -qn security.mac.ntpd.enabled)" == "1" ] || return 1
60 # On older existing systems, the ntp dir may by owned by root, change
61 # it to ntpd to give the daemon create/write access to the driftfile.
62 if [ "$(stat -f %u ${_ntp_default_dir})" = "0" ]; then
63 chown ntpd:ntpd "${_ntp_default_dir}" || return 1
64 chmod 0755 "${_ntp_default_dir}" || return 1
65 logger -s -t "rc.d/ntpd" -p daemon.notice \
66 "${_ntp_default_dir} updated to owner ntpd:ntpd, mode 0755"
69 # If the driftfile exists in the standard location for older existing
70 # systems, move it into the ntp dir and fix the ownership if we can.
71 if [ -f "${_ntp_old_driftfile}" ] && [ ! -L "${_ntp_old_driftfile}" ]; then
72 mv "${_ntp_old_driftfile}" "${_ntp_default_driftfile}" &&
73 chown ntpd:ntpd "${_ntp_default_driftfile}" || return 1
74 logger -s -t "rc.d/ntpd" -p daemon.notice \
75 "${_ntp_default_driftfile} updated to owner ntpd:ntpd"
76 logger -s -t "rc.d/ntpd" -p daemon.notice \
77 "${_ntp_old_driftfile} moved to ${_ntp_default_driftfile}"
85 # If we can run as a non-root user, switch uid to ntpd and use the
86 # new default location for the driftfile inside the ntpd-owned dir.
87 # Otherwise, figure out what to do about the driftfile option. If set
88 # by the admin, we don't add the option. If the file exists in the old
89 # default location we use that, else we use the new default location.
90 if can_run_nonroot; then
92 driftopt="-f ${_ntp_default_driftfile}"
93 elif [ -z "${rc_flags##*-f*}" ] ||
94 [ -z "${rc_flags##*--driftfile*}" ] ||
95 grep -q "^[ \t]*driftfile" "${ntpd_config}"; then
96 driftopt="" # admin set the option, we don't need to add it.
97 elif [ -f "${_ntp_old_driftfile}" ]; then
98 driftopt="-f ${_ntp_old_driftfile}"
100 driftopt="-f ${_ntp_default_driftfile}"
103 # Set command_args based on the various config vars.
104 command_args="-p ${pidfile} -c ${ntpd_config} ${driftopt}"
105 if checkyesno ntpd_sync_on_start; then
106 command_args="${command_args} -g"
109 # Make sure the leapfile is ready to use.
111 if [ ! -f "${ntp_db_leapfile}" ]; then
117 # Seconds between 1900-01-01 and 1970-01-01
118 # echo $(((70*365+17)*86400))
119 ntp_to_unix=2208988800
121 echo $(($(date -u +%s)+$ntp_to_unix))
124 get_ntp_leapfile_ver() {
125 # Leapfile update date (version number).
126 expr "$(awk '$1 == "#$" { print $2 }' "$1" 2>/dev/null)" : \
127 '^\([1-9][0-9]*\)$' \| 0
130 get_ntp_leapfile_expiry() {
131 # Leapfile expiry date.
132 expr "$(awk '$1 == "#@" { print $2 }' "$1" 2>/dev/null)" : \
133 '^\([1-9][0-9]*\)$' \| 0
136 ntpd_init_leapfile() {
137 # Refresh working leapfile with an invalid hash due to
138 # FreeBSD id header. Ntpd will ignore leapfiles with a
139 # mismatch hash. The file must be the virgin file from
141 if [ ! -f $ntp_db_leapfile ]; then
142 cp -p $ntp_src_leapfile $ntp_db_leapfile
146 ntpd_needfetch_leapfile() {
149 if checkyesno ntp_leapfile_fetch_verbose; then
155 ntp_ver_no_src=$(get_ntp_leapfile_ver $ntp_src_leapfile)
156 ntp_expiry_src=$(get_ntp_leapfile_expiry $ntp_src_leapfile)
157 ntp_ver_no_db=$(get_ntp_leapfile_ver $ntp_db_leapfile)
158 ntp_expiry_db=$(get_ntp_leapfile_expiry $ntp_db_leapfile)
159 $verbose ntp_src_leapfile version is $ntp_ver_no_src expires $ntp_expiry_src
160 $verbose ntp_db_leapfile version is $ntp_ver_no_db expires $ntp_expiry_db
162 if [ "$ntp_ver_no_src" -gt "$ntp_ver_no_db" -o \
163 "$ntp_ver_no_src" -eq "$ntp_ver_no_db" -a \
164 "$ntp_expiry_src" -gt "$ntp_expiry_db" ]; then
165 $verbose replacing $ntp_db_leapfile with $ntp_src_leapfile
166 cp -p $ntp_src_leapfile $ntp_db_leapfile
167 ntp_ver_no_db=$ntp_ver_no_src
169 $verbose not replacing $ntp_db_leapfile with $ntp_src_leapfile
171 ntp_leapfile_expiry_seconds=$((ntp_leapfile_expiry_days*86400))
172 ntp_leap_expiry=$(get_ntp_leapfile_expiry $ntp_db_leapfile)
173 ntp_leap_fetch_date=$((ntp_leap_expiry-ntp_leapfile_expiry_seconds))
174 if [ $(current_ntp_ts) -ge $ntp_leap_fetch_date ]; then
175 $verbose Within ntp leapfile expiry limit, initiating fetch
176 # Return code 0: ntp leapfile fetch needed
179 # Return code 1: ntp leapfile fetch not needed
183 ntpd_fetch_leapfile() {
184 if checkyesno ntp_leapfile_fetch_verbose; then
190 if ntpd_needfetch_leapfile ; then
191 for url in $ntp_leapfile_sources ; do
192 $verbose fetching $url
193 fetch $ntp_leapfile_fetch_opts -o $_ntp_tmp_leapfile $url && break
195 ntp_ver_no_tmp=$(get_ntp_leapfile_ver $_ntp_tmp_leapfile)
196 ntp_expiry_tmp=$(get_ntp_leapfile_expiry $_ntp_tmp_leapfile)
197 if [ "$ntp_expiry_tmp" -gt "$ntp_expiry_db" -o \
198 "$ntp_expiry_tmp" -eq "$ntp_expiry_db" -a \
199 "$ntp_ver_no_tmp" -gt "$ntp_ver_no_db" ]; then
200 $verbose using $url as $ntp_db_leapfile
201 mv -f $_ntp_tmp_leapfile $ntp_db_leapfile ||
202 $verbose "warning: cannot replace $ntp_db_leapfile (read-only fs?)"
204 $verbose using existing $ntp_db_leapfile