110 lines
4.4 KiB
C
110 lines
4.4 KiB
C
/*
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chronyd/chronyc - Programs for keeping computer clocks accurate.
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**********************************************************************
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* Copyright (C) Richard P. Curnow 1997-2002
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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**********************************************************************
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=======================================================================
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Header file for the main NTP protocol engine
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*/
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#ifndef GOT_NTP_CORE_H
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#define GOT_NTP_CORE_H
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#include "sysincl.h"
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#include "addressing.h"
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#include "srcparams.h"
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#include "ntp.h"
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#include "reports.h"
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typedef enum {
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NTP_SERVER, NTP_PEER
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} NTP_Source_Type;
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/* This is a private data type used for storing the instance record for
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each source that we are chiming with */
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typedef struct NCR_Instance_Record *NCR_Instance;
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/* Init and fini functions */
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extern void NCR_Initialise(void);
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extern void NCR_Finalise(void);
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/* Get a new instance for a server or peer */
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extern NCR_Instance NCR_GetInstance(NTP_Remote_Address *remote_addr, NTP_Source_Type type, SourceParameters *params);
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/* Destroy an instance */
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extern void NCR_DestroyInstance(NCR_Instance instance);
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/* This routine is called when a new packet arrives off the network,
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and it relates to a source we have an ongoing protocol exchange with */
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extern void NCR_ProcessNoauthKnown(NTP_Packet *message, struct timeval *now, double now_err, NCR_Instance data);
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/* This routine is called when a new packet arrives off the network,
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and we do not recognize its source */
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extern void NCR_ProcessNoauthUnknown(NTP_Packet *message, struct timeval *now, double now_err, NTP_Remote_Address *remote_addr);
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/* This routine is called when a new authenticated packet arrives off
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the network, and it relates to a source we have an ongoing protocol
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exchange with */
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extern void NCR_ProcessAuthKnown(NTP_Packet *message, struct timeval *now, double now_err, NCR_Instance data);
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/* This routine is called when a new authenticated packet arrives off
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the network, and we do not recognize its source */
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extern void NCR_ProcessAuthUnknown(NTP_Packet *message, struct timeval *now, double now_err, NTP_Remote_Address *remote_addr);
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/* Slew receive and transmit times in instance records */
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extern void NCR_SlewTimes(NCR_Instance inst, struct timeval *when, double dfreq, double doffset);
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/* Take a particular source online (i.e. start sampling it) */
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extern void NCR_TakeSourceOnline(NCR_Instance inst);
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/* Take a particular source offline (i.e. stop sampling it, without
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marking it unreachable in the source selection stuff) */
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extern void NCR_TakeSourceOffline(NCR_Instance inst);
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extern void NCR_ModifyMinpoll(NCR_Instance inst, int new_minpoll);
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extern void NCR_ModifyMaxpoll(NCR_Instance inst, int new_maxpoll);
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extern void NCR_ModifyMaxdelay(NCR_Instance inst, double new_max_delay);
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extern void NCR_ModifyMaxdelayratio(NCR_Instance inst, double new_max_delay_ratio);
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extern void NCR_ModifyMaxdelaydevratio(NCR_Instance inst, double new_max_delay_dev_ratio);
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extern void NCR_ModifyMinstratum(NCR_Instance inst, int new_min_stratum);
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extern void NCR_ModifyPolltarget(NCR_Instance inst, int new_poll_target);
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extern void NCR_InitiateSampleBurst(NCR_Instance inst, int n_good_samples, int n_total_samples);
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extern void NCR_ReportSource(NCR_Instance inst, RPT_SourceReport *report, struct timeval *now);
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extern int NCR_AddAccessRestriction(IPAddr *ip_addr, int subnet_bits, int allow, int all);
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extern int NCR_CheckAccessRestriction(IPAddr *ip_addr);
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extern void NCR_IncrementActivityCounters(NCR_Instance inst, int *online, int *offline,
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int *burst_online, int *burst_offline);
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extern NTP_Remote_Address *NCR_GetRemoteAddress(NCR_Instance instance);
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extern int NCR_IsSyncPeer(NCR_Instance instance);
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#endif /* GOT_NTP_CORE_H */
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