faraphel/chrony
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
2273 commits 8 branches 75 tags 4.3 MiB
Commit graph

2273 commits

This branch
This branch
All branches
Author SHA1 Message Date
Miroslav Lichvar
cacbe9976f ntp: add options for compensating HW timestamping errors 2017-01-06 13:12:19 +01:00
Miroslav Lichvar
8efec1d640 ntp: add sanity check for HW timestamps 
Accept HW timestamp only if it doesn't differ from the kernel/daemon
timestamp by more than one second.
 2017-01-06 13:12:19 +01:00
Miroslav Lichvar
c44d282f0b ntp: ignore zero HW timestamps 
Apparently, zero HW timestamps are possible with buggy drivers/HW.
 2017-01-06 13:12:19 +01:00
Miroslav Lichvar
4432f29bd2 sources: try to replace jittery sources 
Similarly to falsetickers, distant, and unreachable sources, try to
replace sources that have jitter larger than maxjitter.
 2017-01-06 13:12:19 +01:00
Miroslav Lichvar
5fee3ed5e9 client: print refid also as string in ntpdata output 2017-01-06 13:12:19 +01:00
Miroslav Lichvar
b76ea64263 ntp: log warning when KoD RATE is received in non-burst mode 2017-01-06 13:12:19 +01:00
Miroslav Lichvar
ed904f08a4 hwclock: return timestamp error 
For now, when converting a raw timestamp, return error of the last
sample as the maximum error of the timestamp. This is needed to include
the PHC reading delay in the NTP dispersion.
 2017-01-06 13:12:19 +01:00
Miroslav Lichvar
96cc80ffc8 ntp: improve dispersion calculation 
Instead of adding precision (sum of the local and remote precision) to
the TX and RX timestamp error, include only the maximum.
 2017-01-06 13:12:19 +01:00
Miroslav Lichvar
ab99373cfc conf: change default rate limiting parameters 
Change the default NTP rate limiting leak to 2 (25%). Change the default
command rate limiting interval to -4 (16 packets per second) and burst
to 8, so the interval is the only difference between NTP and command
rate limiting defaults.
 2017-01-06 13:12:19 +01:00
Miroslav Lichvar
dbfb49384b clientlog: disable NTP response rate limiting by default 
This reverts commit 50022e9286.

Testing showed that ntpd as an NTP client performs poorly when it's
getting only 25% of responses. At least for now, disable rate limiting
by default again.
 2017-01-06 13:12:18 +01:00
Miroslav Lichvar
14bb9f29a3 ntp: calculate delay relative to local frequency 
This should be more accurate as local frequency is usually
combined from multiple sources. This is a partial revert of commit
23a4e8b38d.
 2017-01-06 13:12:18 +01:00
Miroslav Lichvar
16519ee2cc doc: update NEWS 2016-12-15 13:47:41 +01:00
Miroslav Lichvar
50022e9286 clientlog: enable NTP response rate limiting by default 
Change the default interval of both NTP and command rate limiting to -10
(1024 packets per second) and the burst to 16. The default NTP leak is 2
(rate limiting is enabled by default) and the default command leak is 0
(rate limiting is disabled by default).
 2016-12-15 13:47:41 +01:00
Miroslav Lichvar
5059019535 clientlog: randomize alignment of log timestamps 2016-12-15 13:47:41 +01:00
Miroslav Lichvar
c6a38f5069 clientlog: allow very short rate limiting intervals 
Support negative token shift to allow coarse rate limiting with
intervals down to -19.
 2016-12-15 13:47:41 +01:00
Miroslav Lichvar
11ed197663 configure: don't use recvmmsg() on FreeBSD 
Don't try recvmmsg() on FreeBSD, at least for now. It is broken on
FreeBSD 11.0 and it's just a wrapper around recvmsg().
 2016-12-15 13:47:41 +01:00
Miroslav Lichvar
5634e6b963 doc: improve hwtimestamp description 2016-12-14 16:19:35 +01:00
Miroslav Lichvar
db312a5ff6 ntp: allow wildcard in hwtimestamp directive 
If "*" was specified, use getifaddrs() to get a list of all interfaces,
and try to enable HW timestamping on all of them.
 2016-12-14 16:19:35 +01:00
Miroslav Lichvar
88c31b3785 client: improve ntpdata output 2016-12-14 16:19:35 +01:00
Miroslav Lichvar
967f3e4f77 client: don't require address in ntpdata command 
If no address is specified, use the SOURCE_DATA command to get addresses
of NTP sources, and request NTP_DATA for all of them.
 2016-12-14 16:19:35 +01:00
Miroslav Lichvar
2e311d1766 sourcestats: add upper bound for skew 2016-12-14 16:19:35 +01:00
Miroslav Lichvar
11f7cc0507 examples: avoid Unix domain socket in chrony-wait service 
Use the -h option to force chronyc to use internet socket instead of
Unix domain as the access to the socket may be blocked by SELinux and
trying to open it generates SELinux warnings.
 2016-12-13 12:57:25 +01:00
Miroslav Lichvar
a4f28892a5 cmdmon: update protocol changelog 2016-12-13 12:57:25 +01:00
Miroslav Lichvar
5bc53741be sourcestats: add lower bound for std dev used for weighting 2016-12-13 12:57:25 +01:00
Miroslav Lichvar
95a4f33265 sourcestats: save asymmetry run in dump files 
This allows the asymmetry correction to be applied right after restart.
 2016-12-13 12:57:25 +01:00
Miroslav Lichvar
fac1093ebf cmdmon: add reserved fields to ntpdata reply 
This might be useful if ntpdata is changed to not require authorization
and new fields need to be added without breaking compatibility.
 2016-12-13 12:57:25 +01:00
Miroslav Lichvar
1b1384ccaa nameserv: set CLOEXEC flag on pipe file descriptors 2016-12-13 12:57:25 +01:00
Miroslav Lichvar
0c9a19ded5 stubs: rework emulation of asynchronous resolver to use pipes 
With a larger number of configured servers, the handler of the emulated
resolver repeatedly scheduled timeout of zero, which triggered the
infinite loop detection in the scheduler and caused abort. This bug was
introduced in commit 967e358dbc.

Rework the code to use pipes instead of timeouts to avoid this problem.
 2016-12-13 12:57:25 +01:00
Miroslav Lichvar
b7bd7469b7 ntp: disable maxdelayratio in interleaved/symmetric mode 
It's too unreliable and the maxdelaydevratio test should work better
anyway.
 2016-12-13 12:57:24 +01:00
Miroslav Lichvar
9568ff3f06 doc: update NEWS 2016-12-09 09:04:25 +01:00
Miroslav Lichvar
742ddcce11 doc: update README 2016-12-08 16:26:34 +01:00
Miroslav Lichvar
e72cc9e3da test: update 119-smoothtime 2016-12-08 16:25:46 +01:00
Lonnie Abelbeck
3156e5a293 client: add tab-completion with libedit/readline 2016-12-08 15:32:51 +01:00
Miroslav Lichvar
9a901e1cb0 refclock: make maximum lock age configurable 
The maxlockage option specifies in number of pulses how old can be
samples from the refclock specified by the lock option to be paired with
the pulses. Increasing this value is useful when the samples are
produced at a lower rate than the pulses.
 2016-12-08 14:47:38 +01:00
Miroslav Lichvar
8c11044ee2 refclock: slew last sample even after it was used 
It may be needed by locked PPS refclocks.
 2016-12-08 14:47:38 +01:00
Miroslav Lichvar
a75d2db75b test: add scan-build compilation test 2016-12-08 14:47:38 +01:00
Miroslav Lichvar
6aac72fd80 configure: use common CPPFLAGS for all objects 2016-12-08 14:47:38 +01:00
Miroslav Lichvar
b692cb720c configure: fix help text 2016-12-08 14:47:38 +01:00
Miroslav Lichvar
25102489f5 ntp: fix clang warning 2016-12-08 14:47:38 +01:00
Miroslav Lichvar
a2d2cad384 hwclock: fix check of sample separation 2016-12-08 14:47:38 +01:00
Miroslav Lichvar
859e0c2323 ntp: add TX error to dispersion 2016-12-08 14:47:36 +01:00
Miroslav Lichvar
e62a39cafe ntp: fix RX error added to dispersion in interleaved mode 2016-12-08 14:47:33 +01:00
Miroslav Lichvar
8bbb8fa062 sources: add configurable limit for jitter 
The maxjitter directive sets the maximum allowed jitter of the sources
to not be rejected by the source selection algorithm. This prevents
synchronisation with sources that have a small root distance, but their
time is too variable. By default, the maximum jitter is 1 second.
 2016-12-08 14:20:00 +01:00
Miroslav Lichvar
68039e0d14 sourcestats: save variance as standard deviation 
This reduces the number of sqrt() calls.
 2016-12-06 16:56:38 +01:00
Miroslav Lichvar
65fd30a547 cmdmon: allow all parameters to be set for new sources 
Add missing fields to the REQ_NTP_Source structure and add new versions
of the ADD_SERVER/ADD_PEER commands.
 2016-12-06 16:56:38 +01:00
Miroslav Lichvar
23a4e8b38d ntp: rework calculation and testing of peer delay 
Instead of a worst-case delay use a mean value and relate it to the
source's time. This makes it more stable in the interleaved and
symmetric modes, which should improve the weighting and asymmetry
correction. Modify the test A and B to work with a minimum estimated
delay (delay - dispersion).
 2016-12-06 16:56:38 +01:00
Miroslav Lichvar
979b53866d client: print addresses with refids in ntpdata report 2016-12-06 16:56:38 +01:00
Miroslav Lichvar
46061d8eec client: fix truncation of long hostnames 2016-12-06 16:56:38 +01:00
Miroslav Lichvar
946ee8f611 client: fix format specifier for poll in ntpdata report 2016-12-06 16:56:38 +01:00
Miroslav Lichvar
7f757f09ce client: fix add command 
The default version changed to 0 (autoselect).
 2016-12-06 16:56:38 +01:00