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Diffstat (limited to 'ntp_core.h')
| -rw-r--r-- | ntp_core.h | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/ntp_core.h b/ntp_core.h new file mode 100644 index 0000000..33f2bb8 --- /dev/null +++ b/ntp_core.h @@ -0,0 +1,144 @@ +/* + chronyd/chronyc - Programs for keeping computer clocks accurate. + + ********************************************************************** + * Copyright (C) Richard P. Curnow 1997-2002 + * + * 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. + * + ********************************************************************** + + ======================================================================= + + Header file for the main NTP protocol engine + */ + +#ifndef GOT_NTP_CORE_H +#define GOT_NTP_CORE_H + +#include "sysincl.h" + +#include "addressing.h" +#include "srcparams.h" +#include "ntp.h" +#include "reports.h" + +typedef enum { + NTP_SERVER, NTP_PEER +} NTP_Source_Type; + +typedef enum { + NTP_TS_DAEMON = 0, + NTP_TS_KERNEL, + NTP_TS_HARDWARE +} NTP_Timestamp_Source; + +typedef struct { + struct timespec ts; + double err; + NTP_Timestamp_Source source; +} NTP_Local_Timestamp; + +/* This is a private data type used for storing the instance record for + each source that we are chiming with */ +typedef struct NCR_Instance_Record *NCR_Instance; + +/* Init and fini functions */ +extern void NCR_Initialise(void); +extern void NCR_Finalise(void); + +/* Get a new instance for a server or peer */ +extern NCR_Instance NCR_CreateInstance(NTP_Remote_Address *remote_addr, NTP_Source_Type type, + SourceParameters *params, const char *name); + +/* Destroy an instance */ +extern void NCR_DestroyInstance(NCR_Instance instance); + +/* Start an instance */ +extern void NCR_StartInstance(NCR_Instance instance); + +/* Reset an instance */ +extern void NCR_ResetInstance(NCR_Instance inst); + +/* Reset polling interval of an instance */ +extern void NCR_ResetPoll(NCR_Instance instance); + +/* Change the remote address of an instance */ +extern void NCR_ChangeRemoteAddress(NCR_Instance inst, NTP_Remote_Address *remote_addr, + int ntp_only); + +/* This routine is called when a new packet arrives off the network, + and it relates to a source we have an ongoing protocol exchange with */ +extern int NCR_ProcessRxKnown(NCR_Instance inst, NTP_Local_Address *local_addr, + NTP_Local_Timestamp *rx_ts, NTP_Packet *message, int length); + +/* This routine is called when a new packet arrives off the network, + and we do not recognize its source */ +extern void NCR_ProcessRxUnknown(NTP_Remote_Address *remote_addr, NTP_Local_Address *local_addr, + NTP_Local_Timestamp *rx_ts, NTP_Packet *message, int length); + +/* This routine is called when a packet is sent to a source we have + an ongoing protocol exchange with */ +extern void NCR_ProcessTxKnown(NCR_Instance inst, NTP_Local_Address *local_addr, + NTP_Local_Timestamp *tx_ts, NTP_Packet *message, int length); + +/* This routine is called when a packet is sent to a destination we + do not recognize */ +extern void NCR_ProcessTxUnknown(NTP_Remote_Address *remote_addr, NTP_Local_Address *local_addr, + NTP_Local_Timestamp *tx_ts, NTP_Packet *message, int length); + +/* Slew receive and transmit times in instance records */ +extern void NCR_SlewTimes(NCR_Instance inst, struct timespec *when, double dfreq, double doffset); + +/* Take a particular source online (i.e. start sampling it) or offline + (i.e. stop sampling it) */ +extern void NCR_SetConnectivity(NCR_Instance inst, SRC_Connectivity connectivity); + +extern void NCR_ModifyMinpoll(NCR_Instance inst, int new_minpoll); + +extern void NCR_ModifyMaxpoll(NCR_Instance inst, int new_maxpoll); + +extern void NCR_ModifyMaxdelay(NCR_Instance inst, double new_max_delay); + +extern void NCR_ModifyMaxdelayratio(NCR_Instance inst, double new_max_delay_ratio); + +extern void NCR_ModifyMaxdelaydevratio(NCR_Instance inst, double new_max_delay_dev_ratio); + +extern void NCR_ModifyMinstratum(NCR_Instance inst, int new_min_stratum); + +extern void NCR_ModifyPolltarget(NCR_Instance inst, int new_poll_target); + +extern void NCR_InitiateSampleBurst(NCR_Instance inst, int n_good_samples, int n_total_samples); + +extern void NCR_ReportSource(NCR_Instance inst, RPT_SourceReport *report, struct timespec *now); +extern void NCR_GetAuthReport(NCR_Instance inst, RPT_AuthReport *report); +extern void NCR_GetNTPReport(NCR_Instance inst, RPT_NTPReport *report); + +extern int NCR_AddAccessRestriction(IPAddr *ip_addr, int subnet_bits, int allow, int all); +extern int NCR_CheckAccessRestriction(IPAddr *ip_addr); + +extern void NCR_IncrementActivityCounters(NCR_Instance inst, int *online, int *offline, + int *burst_online, int *burst_offline); + +extern NTP_Remote_Address *NCR_GetRemoteAddress(NCR_Instance instance); + +extern uint32_t NCR_GetLocalRefid(NCR_Instance inst); + +extern int NCR_IsSyncPeer(NCR_Instance instance); + +extern void NCR_DumpAuthData(NCR_Instance inst); + +extern void NCR_AddBroadcastDestination(NTP_Remote_Address *addr, int interval); + +#endif /* GOT_NTP_CORE_H */ |