Date: Sat, 17 Oct 2015 13:19:44 -0600 From: Warner Losh <imp@bsdimp.com> To: Cy Schubert <cy@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r289421 - in head/etc: . mtree ntp Message-ID: <8154492E-C29E-41B1-A13B-34E33586DEC6@bsdimp.com> In-Reply-To: <201510161404.t9GE4GqM046436@repo.freebsd.org> References: <201510161404.t9GE4GqM046436@repo.freebsd.org>
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--Apple-Mail=_60572A67-97E7-4200-AEF6-88DC6354712B Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Until the next leap second=E2=80=A6. It would be better to just always try to grab the latest one=E2=80=A6 Can we put something in periodic to do that so users that have releases that are older than 6 months aren=E2=80=99t screwed? Warner > On Oct 16, 2015, at 8:04 AM, Cy Schubert <cy@FreeBSD.org> wrote: >=20 > Author: cy > Date: Fri Oct 16 14:04:16 2015 > New Revision: 289421 > URL: https://svnweb.freebsd.org/changeset/base/289421 >=20 > Log: > Add default leap-seconds file. This should help ntp networks get the > leap second date correct >=20 > Updates to the file can be obtained from ftp://time.nist.gov/pub/ or > ftp://tycho.usno.navy.mil/pub/ntp/. >=20 > Suggested by: dwmalone > Reviewed by: roberto, dwmalone, delphij > Approved by: roberto > MFC after: 1 week >=20 > Added: > head/etc/ntp/ > head/etc/ntp/Makefile (contents, props changed) > head/etc/ntp/leap-seconds (contents, props changed) > Modified: > head/etc/Makefile > head/etc/mtree/BSD.var.dist > head/etc/ntp.conf >=20 > Modified: head/etc/Makefile > = =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D > --- head/etc/Makefile Fri Oct 16 12:53:22 2015 (r289420) > +++ head/etc/Makefile Fri Oct 16 14:04:16 2015 (r289421) > @@ -240,6 +240,9 @@ distribution: > ${_+_}cd ${.CURDIR}/defaults; ${MAKE} install > ${_+_}cd ${.CURDIR}/devd; ${MAKE} install > ${_+_}cd ${.CURDIR}/gss; ${MAKE} install > +.if ${MK_NTP} !=3D "no" > + ${_+_}cd ${.CURDIR}/ntp; ${MAKE} install > +.endif > ${_+_}cd ${.CURDIR}/periodic; ${MAKE} install > .if ${MK_PKGBOOTSTRAP} !=3D "no" > ${_+_}cd ${.CURDIR}/pkg; ${MAKE} install >=20 > Modified: head/etc/mtree/BSD.var.dist > = =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D > --- head/etc/mtree/BSD.var.dist Fri Oct 16 12:53:22 2015 = (r289420) > +++ head/etc/mtree/BSD.var.dist Fri Oct 16 14:04:16 2015 = (r289421) > @@ -46,6 +46,8 @@ > .. > ipf mode=3D0700 > .. > + ntp mode=3D0700 > + .. > pkg > .. > ports >=20 > Modified: head/etc/ntp.conf > = =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D > --- head/etc/ntp.conf Fri Oct 16 12:53:22 2015 (r289420) > +++ head/etc/ntp.conf Fri Oct 16 14:04:16 2015 (r289421) > @@ -77,3 +77,8 @@ restrict 127.127.1.0 > # > #server 127.127.1.0 > #fudge 127.127.1.0 stratum 10 > + > +# See = http://support.ntp.org/bin/view/Support/ConfiguringNTP#Section_6.14. > +# for documentation regarding leapfile. Updates to the file can be = obtained > +# from ftp://time.nist.gov/pub/ or = ftp://tycho.usno.navy.mil/pub/ntp/. > +leapfile "/etc/ntp/leap-seconds" >=20 > Added: head/etc/ntp/Makefile > = =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D > --- /dev/null 00:00:00 1970 (empty, because file is newly added) > +++ head/etc/ntp/Makefile Fri Oct 16 14:04:16 2015 = (r289421) > @@ -0,0 +1,10 @@ > +# $FreeBSD$ > + > +NO_OBJ=3D > + > +FILES=3D leap-seconds > + > +FILESDIR=3D /etc/ntp > +FILESMODE=3D 644 > + > +.include <bsd.prog.mk> >=20 > Added: head/etc/ntp/leap-seconds > = =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D > --- /dev/null 00:00:00 1970 (empty, because file is newly added) > +++ head/etc/ntp/leap-seconds Fri Oct 16 14:04:16 2015 = (r289421) > @@ -0,0 +1,119 @@ > +# > +# $FreeBSD$ > +# > +# ATOMIC TIME. > +# The Coordinated Universal Time (UTC) is the reference time scale = derived > +# from The "Temps Atomique International" (TAI) calculated by the = Bureau > +# International des Poids et Mesures (BIPM) using a worldwide = network of atomic > +# clocks. UTC differs from TAI by an integer number of seconds; it = is the basis > +# of all activities in the world. > +# > +# > +# ASTRONOMICAL TIME (UT1) is the time scale based on the rate of = rotation of the earth. > +# It is now mainly derived from Very Long Baseline Interferometry = (VLBI). The various > +# irregular fluctuations progressively detected in the rotation = rate of the Earth lead > +# in 1972 to the replacement of UT1 by UTC as the reference time = scale. > +# > +# > +# LEAP SECOND > +# Atomic clocks are more stable than the rate of the earth = rotatiob since the later > +# undergoes a full range of geophysical perturbations at various = time scales (lunisolar > +# and core-mantle torques,atmospheric and oceanic effetcs, ...) > +# Leap seconds are needed to keep the two time scales in = agreement, i.e. UT1-UTC smaller > +# than 0.9 second. So, when necessary a "leap second" is = introduced in UTC. > +# Since the adoption of this system in 1972 it has been necessary = to add 26 seconds to UTC, > +# firstly due to the initial choice of the value of the second = (1/86400 mean solar day of > +# the year 1820) and secondly to the general slowing down of the = Earth's rotation. It is > +# theorically possible to have a negative leap second (a second = removed from UTC), but so far, > +# all leap seconds have been positive (a second has been added to = UTC). Based on what we know about the earth's rotation, > +# it is unlikely that we will ever have a negative leap second. > +# > +# > +# HISTORY > +# The first leap second was added on June 30, 1972. Until 2000, it = was necessary in average to add a leap second at a rate > +# of 1 to 2 years. Since 2000, due to the fact that the earth rate = of rotation is accelerating, leap seconds are introduced > +# with an average frequency of 3 to 4 years. > +# > +# > +# RESPONSABILITY OF THE DECISION TO INTRODUCE A LEAP SECOND IN UTC > +# The decision to introduce a leap second in UTC is the = responsibility of the Earth Orientation Center of > +# the International Earth Rotation and reference System Service = (IERS). This center is located at Paris > +# Observatory. According to international agreements, leap second = date have to occur at fixed date : > +# first preference is given to the end of December and June, and = second preference at the end of March > +# and September. Since the system was introduced in 1972, only = dates in June and December were used. > +# > +# Questions or comments to: > +# Daniel Gambis, daniel.gambis@obspm.fr > +# Christian Bizouard: christian.bizouard@obspm.fr > +# Earth orientation Center of the IERS > +# Paris Observatory, France > +# > +# > +# > +# VALIDITY OF THE FILE > +# It is important to express the validity of the file. These next = two dates are > +# given in units of seconds since 1900.0. > +# > +# 1) Last update of the file. > +# > +# Updated through IERS Bulletin C = (ftp://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat) > +# > +# The following line shows the last update of this file in NTP = timestamp: > +# > +#$ 3645216000 > +# > +# 2) Expiration date of the file given on a semi-annual basis: = last June or last December > +# > +# File expires on 28 December 2015 > +# > +# Expire date in NTP timestamp: > +# > +#@ 3660249600 > +# > +# > +# LIST OF LEAP SECONDS > +# NTP timestamp (X parameter) is the number of seconds since = 1900.0 > +# > +# MJD: The Modified Julian Day number. MJD =3D X/86400 + 15020 > +# > +# DTAI: The difference DTAI=3D TAI-UTC in units of seconds > +# It is the quantity to add to UTC to get the time in TAI > +# > +# Day Month Year : epoch in clear > +# > +#NTP Time DTAI Day Month Year > +# > +2272060800 10 # 1 Jan 1972 > +2287785600 11 # 1 Jul 1972 > +2303683200 12 # 1 Jan 1973 > +2335219200 13 # 1 Jan 1974 > +2366755200 14 # 1 Jan 1975 > +2398291200 15 # 1 Jan 1976 > +2429913600 16 # 1 Jan 1977 > +2461449600 17 # 1 Jan 1978 > +2492985600 18 # 1 Jan 1979 > +2524521600 19 # 1 Jan 1980 > +2571782400 20 # 1 Jul 1981 > +2603318400 21 # 1 Jul 1982 > +2634854400 22 # 1 Jul 1983 > +2698012800 23 # 1 Jul 1985 > +2776982400 24 # 1 Jan 1988 > +2840140800 25 # 1 Jan 1990 > +2871676800 26 # 1 Jan 1991 > +2918937600 27 # 1 Jul 1992 > +2950473600 28 # 1 Jul 1993 > +2982009600 29 # 1 Jul 1994 > +3029443200 30 # 1 Jan 1996 > +3076704000 31 # 1 Jul 1997 > +3124137600 32 # 1 Jan 1999 > +3345062400 33 # 1 Jan 2006 > +3439756800 34 # 1 Jan 2009 > +3550089600 35 # 1 Jul 2012 > +3644697600 36 # 1 Jul 2015 > +# > +# In order to verify the integrity of this file, a hash code > +# has been generated. For more information how to use > +# this hash code, please consult the README file under the > +# 'sha' repertory. > +# > +#h 620ba8af 37900668 95ac09ba d77640f9 6fd75493 >=20 --Apple-Mail=_60572A67-97E7-4200-AEF6-88DC6354712B Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iQIcBAEBCgAGBQJWIp9QAAoJEGwc0Sh9sBEA8GMP/RxMSBQvI0BKgbMfYZh7+x2w gGPNOl5FrDjv6R1QxM2alDe3sEZmhNsZ5o0Ekso4kA/uzz5hF9eElp2EA0wn2DMa 1IWJKbLUwLsKvN5bC2cMVmzlklqknm9R7EVyRwPB1Q9jgN8cQV4q01tN96XzbCmQ 1M2Tg8CccnpI9hpdOLjpZQB72kr+rTUm9YrIuiP+nq62NjP4u4UyquKOeUfyyZP1 WnpDNHNknvzlhCnXiexFHUtueL0bAjnSs0F9C7k661xtdt43q/zp0VWkTUeib8/y o64PLOmq3dRK+PLDwRLY94OSpe5QqDivyR4H0BAbKbV97GjC/9byhJenR2J+5GUC 2w54ddlW6rr7rE5kZYd8E5DSoMlmunpm1rMbEwHLHtRXxorZxDUMvj779VS4rj2b MDxVngI/H0/o3inpSZjsqyLqNut8h204r64m2W5MWTMUJ5z1Evb/Uj6Gewfu3rk2 kALtxq32we0Edt8VjYUAOOG/ZjTUWdBY0DPsDBeqjeYqkTNP7Ebgj0z0P69UYRsu XBuMd7ONzSDSAGYXHbyBa2eLhPxDpInBPZ/R4agybBQIJ1qKv6PtV0VH8VGYzADm DhrVGOsSc/yyou+YX7EzTT4F0S1gjPEgO4wopmZdOUFaNBzE8n8UVxTmT4jMlrTH SchUp801COK+osnNyG4c =3+ya -----END PGP SIGNATURE----- --Apple-Mail=_60572A67-97E7-4200-AEF6-88DC6354712B--
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