Package: chrony
Version: 1.23-3
Severity: wishlist
Tags: patch
It would be nice to tell chrony to always use a given source,
especially as it tends to give up easily if it has problems
with the local clock and then fills the syslog with messages
about no available sources and selecting this source again
every few seconds.
Attached patch adds a "trusted" keyword that seems to have the effect
I want.
Hochachtungsvoll,
Bernhard R. Link
Index: chrony-1.23/cmdparse.c
===================================================================
--- chrony-1.23.orig/cmdparse.c 2008-04-30 15:52:08.000000000 +0200
+++ chrony-1.23/cmdparse.c 2008-04-30 15:52:21.000000000 +0200
@@ -56,6 +56,7 @@
src->params.max_delay_ratio = 16384.0;
src->params.online = 1;
src->params.auto_offline = 0;
+ src->params.trusted = 0;
result = CPS_Success;
@@ -138,6 +139,9 @@
} else {
line += n;
}
+ } else if (!strncasecmp(cmd, "trusted", 7)) {
+ src->params.trusted = 1;
+
} else if (!strncasecmp(cmd, "offline", 7)) {
src->params.online = 0;
Index: chrony-1.23/srcparams.h
===================================================================
--- chrony-1.23.orig/srcparams.h 2008-04-30 15:52:08.000000000 +0200
+++ chrony-1.23/srcparams.h 2008-04-30 15:52:21.000000000 +0200
@@ -40,6 +40,7 @@
unsigned long authkey;
double max_delay;
double max_delay_ratio;
+ int trusted;
} SourceParameters;
#define INACTIVE_AUTHKEY 0UL
Index: chrony-1.23/ntp_core.c
===================================================================
--- chrony-1.23.orig/ntp_core.c 2008-04-30 15:58:24.000000000 +0200
+++ chrony-1.23/ntp_core.c 2008-04-30 16:03:40.000000000 +0200
@@ -316,7 +316,7 @@
result->local_poll = params->minpoll;
/* Create a source instance for this NTP source */
- result->source = SRC_CreateNewInstance(remote_addr->ip_addr); /* Will need extra params eventually */
+ result->source = SRC_CreateNewInstance(remote_addr->ip_addr, params->trusted); /* Will need extra params eventually */
result->local_rx.tv_sec = 0;
result->local_rx.tv_usec = 0;
Index: chrony-1.23/sources.c
===================================================================
--- chrony-1.23.orig/sources.c 2008-04-30 15:53:18.000000000 +0200
+++ chrony-1.23/sources.c 2008-04-30 16:06:32.000000000 +0200
@@ -88,6 +88,7 @@
unsigned long ref_id; /* The reference ID of this source
(i.e. its IP address, NOT the
reference _it_ is sync'd to) */
+ int trusted; /* flag set to never mark it jittery */
/* Flag indicating that we are receiving packets with valid headers
from this source and can use it as a reference */
@@ -155,7 +156,7 @@
/* Function to create a new instance. This would be called by one of
the individual source-type instance creation routines. */
-SRC_Instance SRC_CreateNewInstance(unsigned long ref_id)
+SRC_Instance SRC_CreateNewInstance(unsigned long ref_id, int trusted)
{
SRC_Instance result;
@@ -186,6 +187,7 @@
result->ref_id = ref_id;
result->reachable = 0;
result->status = SRC_BAD_STATS;
+ result->trusted = trusted;
n_sources++;
@@ -599,7 +601,7 @@
variance */
for (i=0; i<n_sel_sources; i++) {
index = sel_sources[i];
- if (sources[index]->sel_info.variance > min_distance) {
+ if (sources[index]->sel_info.variance > min_distance && !sources[index]->trusted) {
sel_sources[i] = INVALID_SOURCE;
sources[index]->status = SRC_JITTERY;
#if 0
Index: chrony-1.23/sources.h
===================================================================
--- chrony-1.23.orig/sources.h 2008-04-30 16:04:01.000000000 +0200
+++ chrony-1.23/sources.h 2008-04-30 16:04:16.000000000 +0200
@@ -53,7 +53,7 @@
/* Function to create a new instance. This would be called by one of
the individual source-type instance creation routines. */
-extern SRC_Instance SRC_CreateNewInstance(unsigned long ref_id);
+extern SRC_Instance SRC_CreateNewInstance(unsigned long ref_id, int trusted);
/* Function to get rid of a source when it is being unconfigured.
This may cause the current reference source to be reselected, if this
Index: chrony-1.23/chrony.txt
===================================================================
--- chrony-1.23.orig/chrony.txt 2008-04-30 16:09:12.000000000 +0200
+++ chrony-1.23/chrony.txt 2008-04-30 16:11:18.000000000 +0200
@@ -1984,6 +1984,10 @@
`online' (*note online command::) command when the link has been
established, to enable measurements to start.)
+`trust'
+ Never mark this source as too wrong. Only usefull to force when
+ your local system clock does very strange things.
+
4.3 Running chronyc
===================
