DWS/chrony
1
0
Fork 0
mirror of https://gitlab.com/chrony/chrony.git synced 2025-12-05 13:35:07 -05:00
Code Issues Packages Projects Releases Wiki Activity

ntp: support pools

Browse Source 
The pool directive can be used to configure chronyd for a pool of NTP
servers (e.g. pool.ntp.org). The name is expected to resolve to multiple
addresses which change over time.

On start, a source will be added for each resolved address. When a
source from the pool is unreachable or marked as falseticker, chronyd
will try to replace the source with a newly resolved address of the
pool.

The minimum interval between replacements is currently set to 244
seconds to avoid frequent DNS requests.
This commit is contained in:
Miroslav Lichvar
2014-11-03 11:16:13 +01:00
parent 29c1df4610
commit c743ecbf50
6 changed files with 242 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
sources.c
View File

@@ -36,6 +36,7 @@
#include "sourcestats.h"
#include "memory.h"
#include "ntp.h" /* For NTP_Leap */
#include "ntp_sources.h"
#include "local.h"
#include "reference.h"
#include "util.h"
@@ -399,6 +400,12 @@ SRC_UpdateReachability(SRC_Instance inst, int reachable)
if (REF_GetMode() != REF_ModeNormal && special_mode_end()) {
REF_SetUnsynchronised();
}
/* Try to replace NTP sources that are unreachable or falsetickers */
if (inst->type == SRC_NTP && (inst->status == SRC_FALSETICKER ||
(!inst->reachability && inst->reachability_size == SOURCE_REACH_BITS))) {
NSR_HandleBadSource(inst->ip_addr);
}
}
/* ================================================== */