/* * 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