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Author SHA1 Message Date
Miroslav Lichvar
e225ac68bc test: update 110-chronyc 2017-01-27 11:54:12 +01:00
Miroslav Lichvar
58060c40a5 doc: improve FAQ 2017-01-27 11:45:50 +01:00
Miroslav Lichvar
2ac1b3d5c4 client: print tracking delay/dispersion in nanosecond resolution 2017-01-27 11:35:38 +01:00
Miroslav Lichvar
c174566982 ntp: check supported flags before enabling HW timestamping 2017-01-27 11:35:38 +01:00
Miroslav Lichvar
60fca19d40 ntp: log info message when HW timestamping is enabled 2017-01-27 10:55:28 +01:00
Miroslav Lichvar
8bcb15b02f doc: improve description of some server options 2017-01-27 10:55:28 +01:00
Miroslav Lichvar
65c2cebcd5 reference: report zero root dispersion with local reference 
The server's precision is supposed to be included in client's
dispersion. Don't include it in the server's dispersion.
 2017-01-27 10:55:28 +01:00
Miroslav Lichvar
2a51b45a43 test: fix memory leaks in unit tests 2017-01-27 10:55:28 +01:00
Miroslav Lichvar
5ac791665e doc: update NEWS 2017-01-24 15:03:24 +01:00
Miroslav Lichvar
a4e3f83611 update copyright years 2017-01-24 15:01:38 +01:00
Miroslav Lichvar
8a837f9c2b test: extend 119-smoothtime 2017-01-23 16:17:39 +01:00
Miroslav Lichvar
da2d33e9a8 ntp: fix time smoothing in interleaved mode 
When the server's transmit timestamp was updated with a kernel/HW
timestamp, it didn't include the time smoothing offset. If the offset
was larger than one second, the update failed and clients using the
interleaved mode received less accurate timestamps. If the update
succeeded, the clients received timestamps that were not adjusted for
the time smoothing offset, which added an error of up to 0.5s/1s to
their measured offset/delay.

Fix the update to include the smoothing offset in the new timestamp.
 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
4b98dadae9 ntp: simplify UTI_Ntp64ToTimespec() callers 
Since UTI_Ntp64ToTimespec() was modified to handle zero timestamps, some
of its callers don't need to do that anymore.
 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
86acea5c46 ntp: add interface index to NTP_Local_Address 
This will allow us to get the interface index when sending responses to
clients.
 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
a60fc73e7b refclock_phc: add nocrossts option 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
50f99ec5f4 conf: add nocrossts option to hwtimestamp directive 
This option disables the use of the PTP_SYS_OFFSET_PRECISE ioctl.
 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
31b6a14444 sys_linux: add support for PTP_SYS_OFFSET_PRECISE 
This is for hardware that can precisely cross timestamp the PHC with the
system clock.
 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
9df4d36157 refclock_phc: use sys_linux code for reading PHC 
This drops support for non-ioctl reading of PHC.
 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
b70f0b674f ntp: move PHC-specific code to sys_linux 
This will allow sharing of the code with the PHC refclock driver.
 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
510784077f conf: add minpoll option to hwtimestamp directive 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
9800e397fb hwclock: make minimum sampling separation configurable 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
1436d9961f conf: add precision option to hwtimestamp directive 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
98f5d05925 ntp: include precision of PHC readings in their selection 
Include a fixed non-zero precision (100 nanosecond) in the selection of
PHC readings.
 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
7a937c7652 conf: return hwtimestamp data in struct 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
b198d76676 ntp: include precision in maxdelay test 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
97d4203354 ntp: adapt sampling separation for short polling intervals 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
beaaaad162 ntp: allow sub-second polling intervals 
Change the minimum minpoll to -4, but keep the minimum maxpoll at 0 in
order to not make it too easy to flood distant servers.
 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
4e78975909 ntp: use current poll when backing off on KoD RATE 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
99147ed8f2 ntp: rename maxdelay constants 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
dec0d3bfc2 ntp: reset ntpdata report on address change 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
cd84c99e70 examples: improve chronyd.service 2017-01-23 15:58:55 +01:00
Miroslav Lichvar
d5c507975c doc: update README 2017-01-12 16:34:28 +01:00
Miroslav Lichvar
b4235abd36 update copyright years 2017-01-12 16:34:28 +01:00
Miroslav Lichvar
1966085a97 test: add ntp_core unit test 2017-01-12 16:34:28 +01:00
Miroslav Lichvar
e31e7af48f test: make 119-smoothtime more reliable 2017-01-12 16:34:28 +01:00
Miroslav Lichvar
adb9123fc3 test: extend util unit test 2017-01-12 16:34:28 +01:00
Miroslav Lichvar
b0f7efd59e util: handle zero in conversion of NTP timestamps 
Handle zero NTP timestamp in UTI_Ntp64ToTimespec() as a special value to
make it symmetric with UTI_TimespecToNtp64(). This is needed since
commit d75f6830f1, in which a timestamp is
converted back and forth without checking for zero.

It also makes zero NTP timestamps more apparent in debug output.
 2017-01-12 16:34:28 +01:00
Miroslav Lichvar
e28dfada8c rtc: check for backward RTC steps 
When accumulating a new sample, check if the new RTC time is newer the
last sample time. If it is not, discard all previous samples, assuming
something has stepped the RTC, or it's a broken RTC/driver.
 2017-01-12 16:34:28 +01:00
Miroslav Lichvar
ac0b28cce6 sourcestats: align sample time used for source report 
This reduces leak of sample times (and receive timestamps which are
related to sample times), which could be useful in off-path attacks on
unauthenticated symmetric interleaved mode.
 2017-01-12 16:34:28 +01:00
Miroslav Lichvar
48b16ae66c local: add assertion for precision 2017-01-12 16:34:28 +01:00
Miroslav Lichvar
061579ec28 ntp: don't send packets with RX equal to TX 
Before sending an NTP packet, check whether the TX timestamp is not
equal to the RX timestamp. If it is, generate a new TX timestamp and try
again. This is extremely unlikely to happen in normal operation, but it
is needed for reliable detection of the interleaved mode.
 2017-01-12 16:34:28 +01:00
Miroslav Lichvar
f2f834e7e7 ntp: limit maxdelay parameters 2017-01-12 16:34:27 +01:00
Miroslav Lichvar
a7802e9a76 fix some coverity warnings 2017-01-12 16:34:27 +01:00
Miroslav Lichvar
8f7ab95ff0 doc: update NEWS 2017-01-06 13:12:19 +01:00
Miroslav Lichvar
042c670747 doc: improve chrony.conf man page 2017-01-06 13:12:19 +01:00
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