Add offset option to the server/pool/peer directive. It specifies a
correction which will be applied to offsets measured with the NTP
source. It's particularly useful to compensate for a known asymmetry in
network delay or timestamping errors.
Instead of copying a prepared fd_set to the fd_set used by select(),
fill it from scratch according to the array of file handlers before each
select() call. This should make the code simpler and save some memory
when other events are supported.
Replace SCH_*InputFileHandler() functions with more general
SCH_*FileHandler(), where events are specified as a new parameter and
which will later support other file events, e.g. file ready for ouput
and exception.
The file handlers have two new parameters: file descriptor and event.
- fix word order, articles, consistency, and some typos
- avoid slashes, contractions, `may`, dashes in running text
- use colons before example and code blocks
- add Oxford commas
This allows a server that will become the orphan source to initialize
its time with the initstepslew directive from the current orphan source
or its clients.
The NTP_*_MAC_LENGTH macros didn't include the key ID, which caused the
NTP authentication check to ignore MACs with 512-bit hashes (SHA512,
WHIRLPOOL).
This was broken since update to NTPv4.
If a special reference mode is enabled, always pass the test for
synchronization loop. This allows chronyd using the initstepslew
directive (or the -q/-Q option) to accept time from its own clients
after restart as is documented in the chrony.conf man page.
This was broken since update to NTPv4.
Change the array with refclock instances to store just pointers and
avoid reallocation of the instances. This fixes a bug with the SOCK
refclock, which uses the pointer to the instance in a file handler and
which was invalid when the instance was reallocated (after adding
another refclock).
The bug is from commit d92583ed33.
Don't require the scheduler to be initialized in SCH_QuitProgram().
This fixes a crash when a signal is received between scheduler
finalization and chronyd exit.
Ignore orphan sources that are unreachable (but still have usable stats)
to have a quick and consistent source selection between orphans.
This also fixes the "Unknown local refid in orphan mode" error appearing
when a selected orphan source is removed, as the source is marked as
unreachable and the selection runs with disabled NTP instance before the
source instance is actually removed.
Instead of using a timer for switching the reference to the
unsynchronised state (which activates the local reference), check
if it should be active when returning the reference parameters.
If local reference is active, return normal leap, but unsynchronised
status. Update the callers of the function to work with the leap
directly and not change their behaviour.
REF_IsLocalActive() is no longer needed.
Use REF_GetReferenceParams() in the tracking command to simplify the
code and report the same values as what NTP clients of the server see.
When the local reference mode is active, this changes the leap status to
synchronised and reference time to one second behind current time. When
not synchronised, the root delay and root dispersion are now 1 second.
If the replaced source never had a valid reply (e.g. because it was a
bad replacement), ignore the order of addresses from the resolver to not
get stuck to a pair of addresses if the order doesn't change, or a group
of IPv4/IPv6 addresses if the resolver prefers inaccessible IP family.
When ntpd as an NTP server has active orphan mode, it doesn't update
its reference time and the reference timestamp may fail the NTP test
3 and 7. (https://bugs.ntp.org/show_bug.cgi?id=1098)
Remove both checks of the timestamp to allow chronyd to operate as
a client of ntpd server in the orphan mode. When ntpd is fixed and
old versions are no longer used, this may be reverted.
