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ntp: disable presend in symmetric and interleaved modes

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The presend packet can't be used in symmetric and interleaved modes as
it breaks the protocol with unexpected packets.
This commit is contained in:
Miroslav Lichvar
2016-11-03 08:06:26 +01:00
parent 227c7e60a4
commit 8662652192
2 changed files with 8 additions and 0 deletions
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5
ntp_core.c
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@@ -498,7 +498,12 @@ NCR_GetInstance(NTP_Remote_Address *remote_addr, NTP_Source_Type type, SourcePar
result->min_stratum = params->min_stratum;
if (result->min_stratum >= NTP_MAX_STRATUM)
result->min_stratum = NTP_MAX_STRATUM - 1;
/* Presend doesn't work in symmetric and interleaved modes */
result->presend_minpoll = params->presend_minpoll;
if (result->presend_minpoll &&
(result->mode != MODE_CLIENT || result->interleaved))
result->presend_minpoll = 0;
result->max_delay = params->max_delay;
result->max_delay_ratio = params->max_delay_ratio;