I have machines which might not have an internet connection, but still need to be synchronized, even if the time's not correct. What's important is, that every machine in the network has the same time. Also the ntp server doesn't have a sensor to synchronize to.
Patrick Am 07.09.2012 um 17:33 schrieb "Eric P. Mangold" <[email protected]>: > Could I ask what your use-case is? > > -E > On Fri, Aug 24, 2012 at 01:41:21PM +0200, Patrick Wildt wrote: >> the diff below adds an option to the ntpd(8), which has him provide >> time, even though he's not synced. >> >> ok? >> >> Index: ntpd.8 >> =================================================================== >> RCS file: /cvs/src/usr.sbin/ntpd/ntpd.8,v >> retrieving revision 1.31 >> diff -u -r1.31 ntpd.8 >> --- ntpd.8 17 Sep 2011 10:22:00 -0000 1.31 >> +++ ntpd.8 24 Aug 2012 11:17:17 -0000 >> @@ -23,7 +23,7 @@ >> .Sh SYNOPSIS >> .Nm ntpd >> .Bk -words >> -.Op Fl dnSsv >> +.Op Fl dinSsv >> .Op Fl f Ar file >> .Ek >> .Sh DESCRIPTION >> @@ -47,6 +47,9 @@ >> .Nm >> will run in the foreground and log to >> .Em stderr . >> +.It Fl i >> +Provide time, even though the time is >> +not synced. >> .It Fl f Ar file >> Use >> .Ar file >> Index: ntpd.c >> =================================================================== >> RCS file: /cvs/src/usr.sbin/ntpd/ntpd.c,v >> retrieving revision 1.69 >> diff -u -r1.69 ntpd.c >> --- ntpd.c 19 Mar 2011 23:40:11 -0000 1.69 >> +++ ntpd.c 24 Aug 2012 11:17:17 -0000 >> @@ -73,7 +73,7 @@ >> { >> extern char *__progname; >> >> - fprintf(stderr, "usage: %s [-dnSsv] [-f file]\n", __progname); >> + fprintf(stderr, "usage: %s [-dinSsv] [-f file]\n", __progname); >> exit(1); >> } >> >> @@ -97,13 +97,16 @@ >> >> log_init(1); /* log to stderr until daemonized */ >> >> - while ((ch = getopt(argc, argv, "df:nsSv")) != -1) { >> + while ((ch = getopt(argc, argv, "df:insSv")) != -1) { >> switch (ch) { >> case 'd': >> lconf.debug = 1; >> break; >> case 'f': >> conffile = optarg; >> + break; >> + case 'i': >> + lconf.ignore_sync = 1; >> break; >> case 'n': >> lconf.noaction = 1; >> Index: ntpd.h >> =================================================================== >> RCS file: /cvs/src/usr.sbin/ntpd/ntpd.h,v >> retrieving revision 1.105 >> diff -u -r1.105 ntpd.h >> --- ntpd.h 21 Sep 2011 16:38:05 -0000 1.105 >> +++ ntpd.h 24 Aug 2012 11:17:17 -0000 >> @@ -180,6 +180,7 @@ >> u_int8_t debug; >> u_int8_t noaction; >> u_int8_t filters; >> + u_int8_t ignore_sync; >> }; >> >> enum imsg_type { >> Index: server.c >> =================================================================== >> RCS file: /cvs/src/usr.sbin/ntpd/server.c,v >> retrieving revision 1.36 >> diff -u -r1.36 server.c >> --- server.c 21 Sep 2011 15:41:30 -0000 1.36 >> +++ server.c 24 Aug 2012 11:17:17 -0000 >> @@ -188,7 +188,7 @@ >> version = (query.status & VERSIONMASK) >> 3; >> >> bzero(&reply, sizeof(reply)); >> - if (lconf->status.synced) >> + if (lconf->status.synced || lconf->ignore_sync) >> reply.status = lconf->status.leap; >> else >> reply.status = LI_ALARM; >> @@ -200,7 +200,9 @@ >> else /* ignore packets of different type (e.g. bcast) */ >> return (0); >> >> - reply.stratum = lconf->status.stratum; >> + /* set stratum to 10 when we're not synced but still provide time */ >> + reply.stratum = (lconf->status.synced || !lconf->ignore_sync) ? >> + lconf->status.stratum : 10; >> reply.ppoll = query.ppoll; >> reply.precision = lconf->status.precision; >> reply.rectime = d_to_lfp(rectime);
