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Stop burst sampling when received KoD RATE

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This commit is contained in:
Miroslav Lichvar
2010-04-19 15:10:25 +02:00
parent e0009f9f40
commit f0fd7099c0
1 changed files with 18 additions and 9 deletions
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27
ntp_core.c
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@@ -1110,6 +1110,24 @@ receive_packet(NTP_Packet *message, struct timeval *now, double now_err, NCR_Ins
}
/* Reduce polling rate if KoD RATE was received */
if (kod_rate && valid_kod) {
if (inst->remote_poll > inst->minpoll) {
inst->minpoll = inst->remote_poll;
if (inst->minpoll > inst->maxpoll)
inst->maxpoll = inst->minpoll;
if (inst->minpoll > inst->local_poll)
inst->local_poll = inst->minpoll;
LOG(LOGS_WARN, LOGF_NtpCore, "Received KoD RATE from %s, minpoll set to %d", UTI_IPToString(&inst->remote_addr.ip_addr), inst->minpoll);
}
/* Stop ongoing burst */
if (inst->opmode == MD_BURST_WAS_OFFLINE || inst->opmode == MD_BURST_WAS_ONLINE) {
inst->burst_good_samples_to_go = 0;
LOG(LOGS_WARN, LOGF_NtpCore, "Received KoD RATE from %s, burst sampling stopped", UTI_IPToString(&inst->remote_addr.ip_addr), inst->minpoll);
}
}
/* If we're in burst mode, check whether the burst is completed and
revert to the previous mode */
@@ -1212,16 +1230,7 @@ receive_packet(NTP_Packet *message, struct timeval *now, double now_err, NCR_Ins
}
/* Reduce polling if KoD RATE was received */
if (kod_rate && valid_kod) {
if (inst->remote_poll > inst->minpoll) {
inst->minpoll = inst->remote_poll;
if (inst->minpoll > inst->maxpoll)
inst->maxpoll = inst->minpoll;
if (inst->minpoll > inst->local_poll)
inst->local_poll = inst->minpoll;
LOG(LOGS_INFO, LOGF_NtpCore, "Received KoD RATE from %s, minpoll set to %d", UTI_IPToString(&inst->remote_addr.ip_addr), inst->minpoll);
}
/* Back off for a while */
delay_time += (double) (4 * (1UL << inst->minpoll));
}