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/*
$Header: /cvs/src/chrony/ntp_sources.h,v 1.9 1999/04/19 20:27:29 richard Exp $
=======================================================================
chronyd/chronyc - Programs for keeping computer clocks accurate.
Copyright (C) 1997-1999 Richard P. Curnow
All rights reserved.
For conditions of use, refer to the file LICENCE.
=======================================================================
Header for the part of the software that deals with the set of
current NTP servers and peers, which can resolve an IP address into
a source record for further processing.
*/
#ifndef GOT_NTP_SOURCES_H
#define GOT_NTP_SOURCES_H
#include "ntp.h"
#include "addressing.h"
#include "srcparams.h"
#include "ntp_core.h"
#include "reports.h"
/* Status values returned by operations that indirectly result from user
input. */
typedef enum {
NSR_Success, /* Operation successful */
NSR_NoSuchSource, /* Remove - attempt to remove a source that is not known */
NSR_AlreadyInUse, /* AddServer, AddPeer - attempt to add a source that is already known */
NSR_TooManySources /* AddServer, AddPeer - too many sources already present */
} NSR_Status;
/* Procedure to add a new server source (to which this machine will be
a client) */
extern NSR_Status NSR_AddServer(NTP_Remote_Address *remote_addr, SourceParameters *params);
/* Procedure to add a new peer source. We will use symmetric active
mode packets when communicating with this source */
extern NSR_Status NSR_AddPeer(NTP_Remote_Address *remote_addr, SourceParameters *params);
/* Procedure to remove a source */
extern NSR_Status NSR_RemoveSource(NTP_Remote_Address *remote_addr);
/* This routine is called by ntp_io when a new packet arrives off the network */
extern void NSR_ProcessReceive(NTP_Packet *message, struct timeval *now, NTP_Remote_Address *remote_addr);
/* This routine is called by ntp_io when a new packet with an authentication tail arrives off the network */
extern void NSR_ProcessAuthenticatedReceive(NTP_Packet *message, struct timeval *now, NTP_Remote_Address *remote_addr);
/* Initialisation function */
extern void NSR_Initialise(void);
/* Finalisation function */
extern void NSR_Finalise(void);
/* This routine is used to indicate that sources whose IP addresses
match a particular subnet should be set online again. Returns a
flag indicating whether any hosts matched the address */
extern int NSR_TakeSourcesOnline(unsigned long mask, unsigned long address);
/* This routine is used to indicate that sources whose IP addresses
match a particular subnet should be set offline. Returns a flag
indicating whether any hosts matched the address */
extern int NSR_TakeSourcesOffline(unsigned long mask, unsigned long address);
extern int NSR_ModifyMinpoll(unsigned long address, int new_minpoll);
extern int NSR_ModifyMaxpoll(unsigned long address, int new_maxpoll);
extern int NSR_ModifyMaxdelay(unsigned long address, double new_max_delay);
extern int NSR_ModifyMaxdelayratio(unsigned long address, double new_max_delay_ratio);
extern int NSR_InitiateSampleBurst(int n_good_samples, int n_total_samples, unsigned long mask, unsigned long address);
extern void NSR_ReportSource(RPT_SourceReport *report, struct timeval *now);
#endif /* GOT_NTP_SOURCES_H */
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