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## SECTION=networking
menuconfig NTP
tristate
prompt "ntp "
select LIBCAP
select LIBEVENT
select OPENSSL if NTP_CRYPTO
select ROOTFS_VAR_CACHE if NTP_NTPD
select LIBC_M
select LIBC_RT
select GCCLIBS_GCC_S
help
Build the standard NTP Daemon Process and supplementary programs.
This conflicts with BSD openntpd.
# ----- Compile Options
if NTP
comment "Compile Options"
config NTP_DEBUGGING
bool
prompt "include debugging code"
help
Include a lot of debugging code.
config NTP_BANCOMM
bool
prompt "Datum/Bancomm bc635/VME interface"
help
FIXME: This item needs to be documented
config NTP_GPSVME
bool
prompt "TrueTime GPS receiver/VME interface"
help
FIXME: This item needs to be documented
config NTP_SLEW_ALWAYS
bool
prompt "always slew the time"
help
Slew the clock back into line by making gradual adjustments to the
clock over a couple of minutes.
(The slew rate of typical Unix kernels is limited to 0.5 ms/s.)
config NTP_STEP_SLEW
bool
prompt "step and slew the time"
help
Slew the clock back into line by making step adjustments to the
clock over a couple of minutes.
config NTP_NTPDATE_STEP
bool
prompt "ntpdate should step the time"
help
FIXME: This item needs to be documented
config NTP_HOURLY_TODR_SYNC
bool
prompt "sync TODR hourly"
help
If we should sync TODR hourly (the Solaris hardware clock).
When unsure, say no here.
config NTP_IRIG_SAWTOOTH
bool
prompt "enable the IRIG sawtooth filter"
help
The Sun kernel driver has a sawtooth modulation with
amplitude over 5 ms peak-peak and period 5.5 s. The crafty
IRIG driver uses a transverse filter to remove the
modulation and something called a botttom-fisher to remove
incidental positive spikes especially prevalent with Sun
Blade 1000 and possibly other systems.
config NTP_NIST
bool
prompt "enable the NIST lockclock scheme"
help
The NIST lockclock program synchronizes the local clock
via a telephone modem and the NIST Automated Computer
Time Service (ACTS), or the Digital Time Synchronization
Service (DTSS), which runs on DCE machines.
config NTP_CRYPTO
bool
prompt "use openssl"
help
FIXME: This item needs to be documented
comment "Clock drivers"
config NTP_ALL_CLOCK_DRIVERS
bool
prompt "build all clock drivers"
default y
help
Disabling this entry will only build a set of selected clock drivers.
Else all clock drivers are included into the ntpd.
source "generated/networking_ntp.in"
# ---------- Install Options
comment "Install Options"
config NTP_NTPDATE
bool
prompt "install ntpdate"
help
ntpdate sets the local date and time by polling the Network
Time Protocol (NTP) server(s) given as the server arguments
to determine the correct time.
config NTP_NTPD
bool
prompt "install ntpd"
depends on !BUSYBOX_NTPD || ALLYES
help
The ntpd program is an operating system daemon which sets and
maintains the system time of day in synchronism with Internet
standard time servers.
comment "BusyBox' ntpd is selected"
depends on BUSYBOX_NTPD
config NTP_NTPD_STARTSCRIPT
bool
default y
depends on NTP_NTPD
prompt "install /etc/init.d/ntp-server"
config NTP_NTPD_SYSTEMD_UNIT
bool
default y
depends on NTP_NTPD && SYSTEMD
prompt "install systemd service file"
config NTP_NTPDC
bool
prompt "install ntpdc"
help
ntpdc is used to query the ntpd daemon about its
current state and to request changes in that state.
config NTP_NTPC_STARTSCRIPT
bool
default y
depends on NTP_NTPDC
prompt "install /etc/init.d/ntp-client"
config NTP_NTPQ
bool
prompt "install ntpq"
help
The ntpq utility program is used to monitor NTP daemon ntpd
operations and determine performance.
config NTP_NTPTIME
bool
prompt "install ntptime"
help
The ntptime utility program is used to read the kernel's NTP time
variables.
endif
comment "NTP conflicts with OpenNTPD"
depends on NTP && OPENNTPD
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