/*
* ntpd.h - Prototypes for ntpd.
*/
#include "ntp_syslog.h"
#include "ntp_fp.h"
#include "ntp.h"
#include "ntp_debug.h"
#include "ntp_select.h"
#include "ntp_malloc.h"
#include "ntp_refclock.h"
#include "recvbuff.h"
/* ntp_config.c */
#define TAI_1972 10 /* initial TAI offset (s) */
extern char *keysdir; /* crypto keys and leaptable directory */
extern char * saveconfigdir; /* ntpq saveconfig output directory */
extern void getconfig (int, char **);
extern void ctl_clr_stats (void);
extern int ctlclrtrap (sockaddr_u *, struct interface *, int);
extern u_short ctlpeerstatus (struct peer *);
extern int ctlsettrap (sockaddr_u *, struct interface *, int, int);
extern u_short ctlsysstatus (void);
extern void init_control (void);
extern void init_logging (char const *, int);
extern void setup_logfile (void);
extern void process_control (struct recvbuf *, int);
extern void report_event (int, struct peer *, const char *);
/* ntp_control.c */
/*
* Structure for translation tables between internal system
* variable indices and text format.
*/
struct ctl_var {
u_short code;
u_short flags;
char *text;
};
/*
* Flag values
*/
#define CAN_READ 0x01
#define CAN_WRITE 0x02
#define DEF 0x20
#define PADDING 0x40
#define EOV 0x80
#define RO (CAN_READ)
#define WO (CAN_WRITE)
#define RW (CAN_READ|CAN_WRITE)
extern char * add_var (struct ctl_var **, u_long, u_short);
extern void free_varlist (struct ctl_var *);
extern void set_var (struct ctl_var **, const char *, u_long, u_short);
extern void set_sys_var (const char *, u_long, u_short);
/* ntp_intres.c */
extern void ntp_res_name (sockaddr_u, u_short);
extern void ntp_res_recv (void);
extern void ntp_intres (void);
#ifdef SYS_WINNT
extern unsigned WINAPI ntp_intres_thread (void *);
#endif
/* ntp_io.c */
typedef struct interface_info {
struct interface * interface;
u_char action;
} interface_info_t;
typedef void (*interface_receiver_t) (void *, interface_info_t *);
extern int disable_dynamic_updates;
extern void interface_enumerate (interface_receiver_t, void *);
extern struct interface *findinterface (sockaddr_u *);
extern struct interface *findbcastinter(sockaddr_u *);
extern void enable_broadcast (struct interface *, sockaddr_u *);
extern void enable_multicast_if (struct interface *, sockaddr_u *);
extern void interface_update (interface_receiver_t, void *);
extern void init_io (void);
extern void io_open_sockets (void);
extern void input_handler (l_fp *);
extern void io_clr_stats (void);
extern void io_setbclient (void);
extern void io_unsetbclient (void);
extern void io_multicast_add(sockaddr_u *);
extern void io_multicast_del(sockaddr_u *);
extern void sendpkt (sockaddr_u *, struct interface *, int, struct pkt *, int);
#ifndef SYS_WINNT
extern void kill_asyncio (int);
#endif
#ifdef DEBUG
extern void collect_timing (struct recvbuf *, const char *, int, l_fp *);
#endif
#ifdef HAVE_SIGNALED_IO
extern void wait_for_signal (void);
extern void unblock_io_and_alarm (void);
extern void block_io_and_alarm (void);
#define UNBLOCK_IO_AND_ALARM() unblock_io_and_alarm()
#define BLOCK_IO_AND_ALARM() block_io_and_alarm()
#else
#define UNBLOCK_IO_AND_ALARM()
#define BLOCK_IO_AND_ALARM()
#endif
/* ntp_loopfilter.c */
extern void init_loopfilter(void);
extern int local_clock(struct peer *, double);
extern void adj_host_clock(void);
extern void loop_config(int, double);
extern void huffpuff(void);
extern u_long sys_clocktime;
extern u_int sys_tai;
/* ntp_monitor.c */
extern void init_mon (void);
extern void mon_start (int);
extern void mon_stop (int);
extern int ntp_monitor (struct recvbuf *, int);
extern void ntp_monclearinterface (struct interface *interface);
/* ntp_peer.c */
extern void init_peer (void);
extern struct peer *findexistingpeer (sockaddr_u *, struct peer *, int);
extern struct peer *findpeer (sockaddr_u *, struct interface *, int, int *);
extern struct peer *findpeerbyassoc (u_int);
extern void set_peerdstadr (struct peer *peer, struct interface *interface);
extern struct peer *newpeer (sockaddr_u *, struct interface *, int, int, int, int, u_int, u_char, int, keyid_t);
extern void peer_all_reset (void);
extern void peer_clr_stats (void);
extern struct peer *peer_config (sockaddr_u *, struct interface *, int, int, int, int, u_int, int, keyid_t, u_char *, char *);
extern void peer_reset (struct peer *);
extern void refresh_all_peerinterfaces (void);
extern void unpeer (struct peer *);
extern void clear_all (void);
extern int score_all (struct peer *);
extern struct peer *findmanycastpeer (struct recvbuf *);
extern u_long get_dns_flags (char*, struct peer *);
/* ntp_crypto.c */
#ifdef OPENSSL
extern int crypto_recv (struct peer *, struct recvbuf *);
extern int crypto_xmit (struct peer *, struct pkt *,
struct recvbuf *, int,
struct exten *, keyid_t);
extern keyid_t session_key (sockaddr_u *, sockaddr_u *, keyid_t,
keyid_t, u_long);
extern int make_keylist (struct peer *, struct interface *);
extern void key_expire (struct peer *);
extern void crypto_update (void);
extern void crypto_config (int, char *);
extern void crypto_setup (void);
extern u_int crypto_ident (struct peer *);
extern struct exten *crypto_args (struct peer *, u_int, associd_t, char *);
extern int crypto_public (struct peer *, u_char *, u_int);
extern void value_free (struct value *);
extern char *iffpar_file;
extern EVP_PKEY *iffpar_pkey;
extern char *gqpar_file;
extern EVP_PKEY *gqpar_pkey;
extern char *mvpar_file;
extern EVP_PKEY *mvpar_pkey;
extern struct value tai_leap;
#endif /* OPENSSL */
/* ntp_proto.c */
extern void transmit (struct peer *);
extern void receive (struct recvbuf *);
extern void peer_clear (struct peer *, char *);
extern void process_packet (struct peer *, struct pkt *, u_int);
extern void clock_select (void);
extern int leap_tai; /* TAI at next leap */
extern u_long leap_sec; /* next scheduled leap from file */
extern u_long leap_peers; /* next scheduled leap from peers */
extern u_long leapsec; /* seconds to next leap */
extern u_long leap_expire; /* leap information expiration */
extern int sys_orphan;
extern double sys_mindisp;
extern double sys_maxdist;
/*
* there seems to be a bug in the IRIX 4 compiler which prevents
* u_char from beeing used in prototyped functions.
* This is also true AIX compiler.
* So give up and define it to be int. WLJ
*/
extern void poll_update (struct peer *, int);
extern void clear (struct peer *);
extern void clock_filter (struct peer *, double, double, double);
extern void init_proto (void);
extern void proto_config (int, u_long, double, sockaddr_u *);
extern void proto_clr_stats (void);
#ifdef REFCLOCK
/* ntp_refclock.c */
extern int refclock_newpeer (struct peer *);
extern void refclock_unpeer (struct peer *);
extern void refclock_receive (struct peer *);
extern void refclock_transmit (struct peer *);
extern void init_refclock (void);
#endif /* REFCLOCK */
/* ntp_request.c */
extern void init_request (void);
extern void process_private (struct recvbuf *, int);
/* ntp_restrict.c */
extern void init_restrict (void);
extern int restrictions (sockaddr_u *);
extern void hack_restrict (int, sockaddr_u *, sockaddr_u *, int, int);
/* ntp_timer.c */
extern void init_timer (void);
extern void reinit_timer (void);
extern void timer (void);
extern void timer_clr_stats (void);
extern void timer_interfacetimeout (u_long);
extern volatile int interface_interval;
#ifdef OPENSSL
extern char *sys_hostname; /* host name */
extern char *sys_groupname; /* group name */
extern char *group_name; /* group name */
extern u_long sys_revoke; /* keys revoke timeout */
extern u_long sys_automax; /* session key timeout */
#endif /* OPENSSL */
/* ntp_util.c */
extern void init_util (void);
extern void write_stats (void);
extern void stats_config (int, const char *);
extern void record_peer_stats (sockaddr_u *, int, double, double, double, double);
extern void record_proto_stats (char *);
extern void record_loop_stats (double, double, double, double, int);
extern void record_clock_stats (sockaddr_u *, const char *);
extern void record_raw_stats (sockaddr_u *, sockaddr_u *, l_fp *, l_fp *, l_fp *, l_fp *);
extern u_long leap_month(u_long);
extern void record_crypto_stats (sockaddr_u *, const char *);
#ifdef DEBUG
extern void record_timing_stats (const char *);
#endif
extern u_short sock_hash (sockaddr_u *);
extern char * fstostr(time_t); /* NTP timescale seconds */
extern double old_drift;
extern int drift_file_sw;
extern double wander_threshold;
extern double wander_resid;
extern int save_drift_file (void);
/*
* Variable declarations for ntpd.
*/
/* ntp_config.c */
extern char const * progname;
extern char *sys_phone[]; /* ACTS phone numbers */
#if defined(HAVE_SCHED_SETSCHEDULER)
extern int config_priority_override;
extern int config_priority;
#endif
extern char *ntp_signd_socket;
extern struct config_tree *cfg_tree_history;
#ifdef BC_LIST_FRAMEWORK_NOT_YET_USED
/*
* backwards compatibility flags
*/
typedef struct bc_entry_tag {
int token;
int enabled;
} bc_entry;
extern bc_entry bc_list[];
#endif
/* ntp_control.c */
extern int num_ctl_traps;
extern keyid_t ctl_auth_keyid; /* keyid used for authenticating write requests */
/*
* Statistic counters to keep track of requests and responses.
*/
extern u_long ctltimereset; /* time stats reset */
extern u_long numctlreq; /* number of requests we've received */
extern u_long numctlbadpkts; /* number of bad control packets */
extern u_long numctlresponses; /* number of resp packets sent with data */
extern u_long numctlfrags; /* number of fragments sent */
extern u_long numctlerrors; /* number of error responses sent */
extern u_long numctltooshort; /* number of too short input packets */
extern u_long numctlinputresp; /* number of responses on input */
extern u_long numctlinputfrag; /* number of fragments on input */
extern u_long numctlinputerr; /* number of input pkts with err bit set */
extern u_long numctlbadoffset; /* number of input pkts with nonzero offset */
extern u_long numctlbadversion; /* number of input pkts with unknown version */
extern u_long numctldatatooshort; /* data too short for count */
extern u_long numctlbadop; /* bad op code found in packet */
extern u_long numasyncmsgs; /* number of async messages we've sent */
/* ntp_intres.c */
extern keyid_t req_keyid; /* request keyid */
extern int req_keytype; /* OpenSSL NID such as NID_md5 */
extern size_t req_hashlen; /* digest size for req_keytype */
extern char * req_file; /* name of the file with configuration info */
#ifdef SYS_WINNT
extern HANDLE ResolverEventHandle;
#else
extern int resolver_pipe_fd[2]; /* used to let the resolver process alert the parent process */
#endif /* SYS_WINNT */
/*
* Other statistics of possible interest
*/
extern volatile u_long packets_dropped; /* total number of packets dropped on reception */
extern volatile u_long packets_ignored; /* packets received on wild card interface */
extern volatile u_long packets_received;/* total number of packets received */
extern u_long packets_sent; /* total number of packets sent */
extern u_long packets_notsent; /* total number of packets which couldn't be sent */
extern volatile u_long handler_calls; /* number of calls to interrupt handler */
extern volatile u_long handler_pkts; /* number of pkts received by handler */
extern u_long io_timereset; /* time counters were reset */
/*
* Interface stuff
*/
extern struct interface *any_interface; /* default ipv4 interface */
extern struct interface *any6_interface;/* default ipv6 interface */
extern struct interface *loopback_interface; /* loopback interface */
/*
* File descriptor masks etc. for call to select
*/
extern fd_set activefds;
extern int maxactivefd;
/* ntp_loopfilter.c */
extern double drift_comp; /* clock frequency (s/s) */
extern double clock_stability; /* clock stability (s/s) */
extern double clock_max; /* max offset before step (s) */
extern double clock_panic; /* max offset before panic (s) */
extern double clock_phi; /* dispersion rate (s/s) */
extern double clock_minstep; /* step timeout (s) */
extern double clock_codec; /* codec frequency */
#ifdef KERNEL_PLL
extern int pll_status; /* status bits for kernel pll */
#endif /* KERNEL_PLL */
/*
* Clock state machine control flags
*/
extern int ntp_enable; /* clock discipline enabled */
extern int pll_control; /* kernel support available */
extern int kern_enable; /* kernel support enabled */
extern int pps_enable; /* kernel PPS discipline enabled */
extern int ext_enable; /* external clock enabled */
extern int cal_enable; /* refclock calibrate enable */
extern int allow_panic; /* allow panic correction */
extern int mode_ntpdate; /* exit on first clock set */
extern int peer_ntpdate; /* count of ntpdate peers */
/*
* Clock state machine variables
*/
extern u_char sys_poll; /* system poll interval (log2 s) */
extern int state; /* clock discipline state */
extern int tc_counter; /* poll-adjust counter */
extern u_long last_time; /* time of last clock update (s) */
extern double last_offset; /* last clock offset (s) */
extern u_char allan_xpt; /* Allan intercept (log2 s) */
extern double clock_jitter; /* clock jitter (s) */
extern double sys_offset; /* system offset (s) */
extern double sys_jitter; /* system jitter (s) */
/* ntp_monitor.c */
extern struct mon_data mon_mru_list;
extern struct mon_data mon_fifo_list;
extern int mon_enabled;
/* ntp_peer.c */
extern struct peer *peer_hash[]; /* peer hash table */
extern int peer_hash_count[]; /* count of peers in each bucket */
extern struct peer *assoc_hash[]; /* association ID hash table */
extern int assoc_hash_count[];
extern int peer_free_count;
/*
* Miscellaneous statistic counters which may be queried.
*/
extern u_long peer_timereset; /* time stat counters were zeroed */
extern u_long findpeer_calls; /* number of calls to findpeer */
extern u_long assocpeer_calls; /* number of calls to findpeerbyassoc */
extern u_long peer_allocations; /* number of allocations from the free list */
extern u_long peer_demobilizations; /* number of structs freed to free list */
extern int total_peer_structs; /* number of peer structs in circulation */
extern int peer_associations; /* mobilized associations */
extern int peer_preempt; /* preemptable associations */
/* ntp_proto.c */
/*
* System variables are declared here. See Section 3.2 of the
* specification.
*/
extern u_char sys_leap; /* system leap indicator */
extern u_char sys_stratum; /* system stratum */
extern s_char sys_precision; /* local clock precision */
extern double sys_rootdelay; /* roundtrip delay to primary source */
extern double sys_rootdisp; /* dispersion to primary source */
extern u_int32 sys_refid; /* reference id */
extern l_fp sys_reftime; /* last update time */
extern struct peer *sys_peer; /* current peer */
/*
* Nonspecified system state variables.
*/
extern int sys_bclient; /* we set our time to broadcasts */
extern double sys_bdelay; /* broadcast client default delay */
extern int sys_authenticate; /* requre authentication for config */
extern l_fp sys_authdelay; /* authentication delay */
extern keyid_t sys_private; /* private value for session seed */
extern int sys_manycastserver; /* respond to manycast client pkts */
extern int sys_minclock; /* minimum survivors */
extern int sys_minsane; /* minimum candidates */
extern int sys_floor; /* cluster stratum floor */
extern int sys_ceiling; /* cluster stratum ceiling */
extern u_char sys_ttl[MAX_TTL]; /* ttl mapping vector */
extern int sys_ttlmax; /* max ttl mapping vector index */
/*
* Statistics counters
*/
extern u_long sys_stattime; /* time since reset */
extern u_long sys_received; /* packets received */
extern u_long sys_processed; /* packets for this host */
extern u_long sys_restricted; /* restricted packets */
extern u_long sys_newversion; /* current version */
extern u_long sys_oldversion; /* old version */
extern u_long sys_restricted; /* access denied */
extern u_long sys_badlength; /* bad length or format */
extern u_long sys_badauth; /* bad authentication */
extern u_long sys_declined; /* declined */
extern u_long sys_limitrejected; /* rate exceeded */
extern u_long sys_kodsent; /* KoD sent */
/* ntp_refclock.c */
#ifdef REFCLOCK
#ifdef PPS
extern int fdpps; /* pps file descriptor */
#endif /* PPS */
#endif
/* ntp_request.c */
extern keyid_t info_auth_keyid; /* keyid used to authenticate requests */
/* ntp_restrict.c */
extern struct restrictlist *restrictlist; /* the ipv4 restriction list */
extern struct restrictlist6 *restrictlist6; /* the ipv6 restriction list */
extern int ntp_minpkt;
extern int ntp_minpoll;
extern int mon_age; /* monitor preempt age */
/* ntp_timer.c */
extern volatile int alarm_flag; /* alarm flag */
extern volatile u_long alarm_overflow;
extern u_long current_time; /* current time (s) */
extern u_long dns_timer;
extern u_long timer_timereset;
extern u_long timer_overflows;
extern u_long timer_xmtcalls;
/* ntp_util.c */
extern int stats_control; /* write stats to fileset? */
extern int stats_write_period; /* # of seconds between writes. */
extern double stats_write_tolerance;
/* ntpd.c */
extern volatile int debug; /* debugging flag */
extern int nofork; /* no-fork flag */
extern int initializing; /* initializing flag */
#ifdef HAVE_DROPROOT
extern int droproot; /* flag: try to drop root privileges after startup */
extern char *user; /* user to switch to */
extern char *group; /* group to switch to */
extern const char *chrootdir; /* directory to chroot to */
#endif
/* refclock_conf.c */
#ifdef REFCLOCK
extern struct refclock *refclock_conf[]; /* refclock configuration table */
extern u_char num_refclock_conf;
#endif
/* ntp_signd.c */
#ifdef HAVE_NTP_SIGND
extern void
send_via_ntp_signd(
struct recvbuf *rbufp, /* receive packet pointer */
int xmode,
keyid_t xkeyid,
int flags,
struct pkt *xpkt
);
#endif