chrony/stubs.c
Miroslav Lichvar c743ecbf50 ntp: support pools
The pool directive can be used to configure chronyd for a pool of NTP
servers (e.g. pool.ntp.org). The name is expected to resolve to multiple
addresses which change over time.

On start, a source will be added for each resolved address. When a
source from the pool is unreachable or marked as falseticker, chronyd
will try to replace the source with a newly resolved address of the
pool.

The minimum interval between replacements is currently set to 244
seconds to avoid frequent DNS requests.
2014-11-03 11:18:04 +01:00

329 lines
4.9 KiB
C

/*
chronyd/chronyc - Programs for keeping computer clocks accurate.
**********************************************************************
* Copyright (C) Miroslav Lichvar 2014
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
**********************************************************************
=======================================================================
Function replacements needed when optional features are disabled.
*/
#include "config.h"
#include "clientlog.h"
#include "cmdmon.h"
#include "keys.h"
#include "logging.h"
#include "manual.h"
#include "nameserv.h"
#include "nameserv_async.h"
#include "ntp_core.h"
#include "ntp_io.h"
#include "ntp_sources.h"
#include "refclock.h"
#ifndef FEAT_ASYNCDNS
#define MAX_ADDRESSES 16
/* This is a blocking implementation used when asynchronous resolving is not available */
void
DNS_Name2IPAddressAsync(const char *name, DNS_NameResolveHandler handler, void *anything)
{
IPAddr addrs[MAX_ADDRESSES];
DNS_Status status;
int i;
status = DNS_Name2IPAddress(name, addrs, MAX_ADDRESSES);
for (i = 0; status == DNS_Success && i < MAX_ADDRESSES &&
addrs[i].family != IPADDR_UNSPEC; i++)
;
(handler)(status, i, addrs, anything);
}
#endif /* !FEAT_ASYNCDNS */
#ifndef FEAT_CMDMON
void
CAM_Initialise(int family)
{
}
void
CAM_Finalise(void)
{
}
int
CAM_AddAccessRestriction(IPAddr *ip_addr, int subnet_bits, int allow, int all)
{
return 1;
}
void
MNL_Initialise(void)
{
}
void
MNL_Finalise(void)
{
}
#endif /* !FEAT_CMDMON */
#ifndef FEAT_NTP
void
NCR_AddBroadcastDestination(IPAddr *addr, unsigned short port, int interval)
{
}
void
NCR_Initialise(void)
{
}
void
NCR_Finalise(void)
{
}
int
NCR_AddAccessRestriction(IPAddr *ip_addr, int subnet_bits, int allow, int all)
{
return 1;
}
int
NCR_CheckAccessRestriction(IPAddr *ip_addr)
{
return 0;
}
void
NIO_Initialise(int family)
{
}
void
NIO_Finalise(void)
{
}
void
NSR_Initialise(void)
{
}
void
NSR_Finalise(void)
{
}
NSR_Status
NSR_AddSource(NTP_Remote_Address *remote_addr, NTP_Source_Type type, SourceParameters *params)
{
return NSR_TooManySources;
}
void
NSR_AddSourceByName(char *name, int port, int pool, NTP_Source_Type type, SourceParameters *params)
{
}
NSR_Status
NSR_RemoveSource(NTP_Remote_Address *remote_addr)
{
return NSR_NoSuchSource;
}
void
NSR_RemoveAllSources(void)
{
}
void
NSR_HandleBadSource(IPAddr *address)
{
}
void
NSR_SetSourceResolvingEndHandler(NSR_SourceResolvingEndHandler handler)
{
if (handler)
(handler)();
}
void
NSR_ResolveSources(void)
{
}
void NSR_StartSources(void)
{
}
void NSR_AutoStartSources(void)
{
}
int
NSR_InitiateSampleBurst(int n_good_samples, int n_total_samples,
IPAddr *mask, IPAddr *address)
{
return 0;
}
int
NSR_TakeSourcesOnline(IPAddr *mask, IPAddr *address)
{
return 0;
}
int
NSR_TakeSourcesOffline(IPAddr *mask, IPAddr *address)
{
return 0;
}
int
NSR_ModifyMinpoll(IPAddr *address, int new_minpoll)
{
return 0;
}
int
NSR_ModifyMaxpoll(IPAddr *address, int new_maxpoll)
{
return 0;
}
int
NSR_ModifyMaxdelay(IPAddr *address, double new_max_delay)
{
return 0;
}
int
NSR_ModifyMaxdelayratio(IPAddr *address, double new_max_delay_ratio)
{
return 0;
}
int
NSR_ModifyMaxdelaydevratio(IPAddr *address, double new_max_delay_dev_ratio)
{
return 0;
}
int
NSR_ModifyMinstratum(IPAddr *address, int new_min_stratum)
{
return 0;
}
int
NSR_ModifyPolltarget(IPAddr *address, int new_poll_target)
{
return 0;
}
void
NSR_ReportSource(RPT_SourceReport *report, struct timeval *now)
{
memset(report, 0, sizeof (*report));
}
void
NSR_GetActivityReport(RPT_ActivityReport *report)
{
memset(report, 0, sizeof (*report));
}
#ifndef FEAT_CMDMON
void
CLG_Initialise(void)
{
}
void
CLG_Finalise(void)
{
}
void
DNS_SetAddressFamily(int family)
{
}
DNS_Status
DNS_Name2IPAddress(const char *name, IPAddr *ip_addrs, int max_addrs)
{
return DNS_Failure;
}
void
KEY_Initialise(void)
{
}
void
KEY_Finalise(void)
{
}
#endif /* !FEAT_CMDMON */
#endif /* !FEAT_NTP */
#ifndef FEAT_REFCLOCK
void
RCL_Initialise(void)
{
}
void
RCL_Finalise(void)
{
}
int
RCL_AddRefclock(RefclockParameters *params)
{
return 0;
}
void
RCL_StartRefclocks(void)
{
}
void
RCL_ReportSource(RPT_SourceReport *report, struct timeval *now)
{
memset(report, 0, sizeof (*report));
}
#endif /* !FEAT_REFCLOCK */