1 /* 2 * ntpd.h - Prototypes and external variables for ntpd. 3 * 4 * Note the first half is primarily function prototypes, type 5 * declarations, and preprocessor macros, with variables declared 6 * primarily in the second half. 7 * 8 * Each half is further divided into sections for each source file. 9 */ 10 11 #include "ntp.h" 12 #include "ntp_stdlib.h" 13 #include "ntp_syslog.h" 14 #include "ntp_debug.h" 15 #include "ntp_syslog.h" 16 #include "ntp_select.h" 17 #include "ntp_malloc.h" 18 #include "ntp_refclock.h" 19 #include "ntp_intres.h" 20 #include "recvbuff.h" 21 22 /* 23 * First half: ntpd types, functions, macros 24 * ----------------------------------------- 25 */ 26 27 /* 28 * macro for debugging output - cut down on #ifdef pollution. 29 * 30 * DPRINTF() is for use by ntpd only, and compiles away to nothing 31 * without DEBUG (configure --disable-debugging). 32 * 33 * TRACE() is similar for libntp and utilities, which retain full 34 * debug capability even when compiled without DEBUG. 35 * 36 * The calling convention is not attractive: 37 * DPRINTF(debuglevel, (fmt, ...)); 38 * DPRINTF(2, ("shows #ifdef DEBUG and if debug >= %d\n", 2)); 39 */ 40 #ifdef DEBUG 41 # define DPRINTF(lvl, arg) \ 42 do { \ 43 if (debug >= (lvl)) \ 44 mprintf arg; \ 45 } while (0) 46 #else 47 # define DPRINTF(lvl, arg) do {} while (0) 48 #endif 49 50 51 /* nt_clockstuff.c */ 52 #ifdef SYS_WINNT 53 extern void win_time_stepped(void); 54 #endif 55 56 /* ntp_config.c */ 57 #define TAI_1972 10 /* initial TAI offset (s) */ 58 extern char *keysdir; /* crypto keys and leaptable directory */ 59 extern char * saveconfigdir; /* ntpq saveconfig output directory */ 60 61 extern void getconfig (int, char **); 62 extern void ctl_clr_stats (void); 63 extern int ctlclrtrap (sockaddr_u *, struct interface *, int); 64 extern u_short ctlpeerstatus (struct peer *); 65 extern int ctlsettrap (sockaddr_u *, struct interface *, int, int); 66 extern u_short ctlsysstatus (void); 67 extern void init_control (void); 68 extern void process_control (struct recvbuf *, int); 69 extern void report_event (int, struct peer *, const char *); 70 extern int mprintf_event (int, struct peer *, const char *, ...) 71 NTP_PRINTF(3, 4); 72 73 /* ntp_control.c */ 74 /* 75 * Structure for translation tables between internal system 76 * variable indices and text format. 77 */ 78 struct ctl_var { 79 u_short code; 80 u_short flags; 81 const char *text; 82 }; 83 /* 84 * Flag values 85 */ 86 #define CAN_READ 0x01 87 #define CAN_WRITE 0x02 88 89 #define DEF 0x20 90 #define PADDING 0x40 91 #define EOV 0x80 92 93 #define RO (CAN_READ) 94 #define WO (CAN_WRITE) 95 #define RW (CAN_READ|CAN_WRITE) 96 97 extern char * add_var (struct ctl_var **, u_long, u_short); 98 extern void free_varlist (struct ctl_var *); 99 extern void set_var (struct ctl_var **, const char *, u_long, u_short); 100 extern void set_sys_var (const char *, u_long, u_short); 101 extern const char * get_ext_sys_var(const char *tag); 102 103 /* ntp_io.c */ 104 typedef struct interface_info { 105 endpt * ep; 106 u_char action; 107 } interface_info_t; 108 109 typedef void (*interface_receiver_t) (void *, interface_info_t *); 110 111 extern void interface_enumerate (interface_receiver_t, void *); 112 extern endpt * getinterface (sockaddr_u *, u_int32); 113 extern endpt * select_peerinterface (struct peer *, sockaddr_u *, 114 endpt *); 115 extern endpt * findinterface (sockaddr_u *); 116 extern endpt * findbcastinter (sockaddr_u *); 117 extern void enable_broadcast (endpt *, sockaddr_u *); 118 extern void enable_multicast_if (endpt *, sockaddr_u *); 119 extern void interface_update (interface_receiver_t, void *); 120 #ifndef HAVE_IO_COMPLETION_PORT 121 extern void io_handler (void); 122 #endif 123 extern void init_io (void); 124 extern void io_open_sockets (void); 125 extern void io_clr_stats (void); 126 extern void io_setbclient (void); 127 extern void io_unsetbclient (void); 128 extern void io_multicast_add(sockaddr_u *); 129 extern void io_multicast_del(sockaddr_u *); 130 extern void sendpkt (sockaddr_u *, struct interface *, int, struct pkt *, int); 131 #ifdef DEBUG 132 extern void collect_timing (struct recvbuf *, const char *, int, l_fp *); 133 #endif 134 #ifdef HAVE_SIGNALED_IO 135 extern void wait_for_signal (void); 136 extern void unblock_io_and_alarm (void); 137 extern void block_io_and_alarm (void); 138 # define UNBLOCK_IO_AND_ALARM() unblock_io_and_alarm() 139 # define BLOCK_IO_AND_ALARM() block_io_and_alarm() 140 #else 141 # define UNBLOCK_IO_AND_ALARM() do {} while (0) 142 # define BLOCK_IO_AND_ALARM() do {} while (0) 143 #endif 144 #define latoa(pif) localaddrtoa(pif) 145 extern const char * localaddrtoa(endpt *); 146 147 /* ntp_loopfilter.c */ 148 extern void init_loopfilter(void); 149 extern int local_clock(struct peer *, double); 150 extern void adj_host_clock(void); 151 extern void loop_config(int, double); 152 extern void select_loop(int); 153 extern void huffpuff(void); 154 extern u_long sys_clocktime; 155 extern u_int sys_tai; 156 extern int freq_cnt; 157 158 /* ntp_monitor.c */ 159 #define MON_HASH_SIZE ((size_t)1U << mon_hash_bits) 160 #define MON_HASH_MASK (MON_HASH_SIZE - 1) 161 #define MON_HASH(addr) (sock_hash(addr) & MON_HASH_MASK) 162 extern void init_mon (void); 163 extern void mon_start (int); 164 extern void mon_stop (int); 165 extern u_short ntp_monitor (struct recvbuf *, u_short); 166 extern void mon_clearinterface(endpt *interface); 167 168 /* ntp_peer.c */ 169 extern void init_peer (void); 170 extern struct peer *findexistingpeer(sockaddr_u *, const char *, 171 struct peer *, int, u_char, int *); 172 extern struct peer *findpeer (struct recvbuf *, int, int *); 173 extern struct peer *findpeerbyassoc(associd_t); 174 extern void set_peerdstadr (struct peer *, endpt *); 175 extern struct peer *newpeer (sockaddr_u *, const char *, endpt *, 176 int, u_char, u_char, u_char, u_char, 177 u_int, u_char, u_int32, 178 keyid_t, const char *); 179 extern void peer_all_reset (void); 180 extern void peer_clr_stats (void); 181 extern struct peer *peer_config(sockaddr_u *, const char *, endpt *, 182 int, u_char, u_char, u_char, u_char, 183 u_int, u_int32, 184 keyid_t, const char *); 185 extern void peer_reset (struct peer *); 186 extern void refresh_all_peerinterfaces(void); 187 extern void unpeer (struct peer *); 188 extern void clear_all (void); 189 extern int score_all (struct peer *); 190 extern struct peer *findmanycastpeer(struct recvbuf *); 191 extern void peer_cleanup (void); 192 193 /* ntp_crypto.c */ 194 #ifdef AUTOKEY 195 extern int crypto_recv (struct peer *, struct recvbuf *); 196 extern int crypto_xmit (struct peer *, struct pkt *, 197 struct recvbuf *, int, 198 struct exten *, keyid_t); 199 extern keyid_t session_key (sockaddr_u *, sockaddr_u *, keyid_t, 200 keyid_t, u_long); 201 extern int make_keylist (struct peer *, struct interface *); 202 extern void key_expire (struct peer *); 203 extern void crypto_update (void); 204 extern void crypto_update_taichange(void); 205 extern void crypto_config (int, char *); 206 extern void crypto_setup (void); 207 extern u_int crypto_ident (struct peer *); 208 extern struct exten *crypto_args (struct peer *, u_int, associd_t, char *); 209 extern int crypto_public (struct peer *, u_char *, u_int); 210 extern void value_free (struct value *); 211 extern char *iffpar_file; 212 extern EVP_PKEY *iffpar_pkey; 213 extern char *gqpar_file; 214 extern EVP_PKEY *gqpar_pkey; 215 extern char *mvpar_file; 216 extern EVP_PKEY *mvpar_pkey; 217 extern struct value tai_leap; 218 #endif /* AUTOKEY */ 219 220 /* ntp_proto.c */ 221 extern void transmit (struct peer *); 222 extern void receive (struct recvbuf *); 223 extern void peer_clear (struct peer *, const char *); 224 extern void process_packet (struct peer *, struct pkt *, u_int); 225 extern void clock_select (void); 226 extern void set_sys_leap (u_char); 227 228 extern u_long leapsec; /* seconds to next leap (proximity class) */ 229 extern int leapdif; /* TAI difference step at next leap second*/ 230 extern int sys_orphan; 231 extern double sys_mindisp; 232 extern double sys_maxdist; 233 234 extern char *sys_ident; /* identity scheme */ 235 extern void poll_update (struct peer *, u_char); 236 237 extern void clear (struct peer *); 238 extern void clock_filter (struct peer *, double, double, double); 239 extern void init_proto (void); 240 extern void set_sys_tick_precision(double); 241 extern void proto_config (int, u_long, double, sockaddr_u *); 242 extern void proto_clr_stats (void); 243 244 /* ntp_refclock.c */ 245 #ifdef REFCLOCK 246 extern int refclock_newpeer (struct peer *); 247 extern void refclock_unpeer (struct peer *); 248 extern void refclock_receive (struct peer *); 249 extern void refclock_transmit (struct peer *); 250 extern void init_refclock (void); 251 #endif /* REFCLOCK */ 252 253 /* ntp_request.c */ 254 extern void init_request (void); 255 extern void process_private (struct recvbuf *, int); 256 extern void reset_auth_stats(void); 257 258 /* ntp_restrict.c */ 259 extern void init_restrict (void); 260 extern void restrictions (sockaddr_u *, r4addr *); 261 extern void hack_restrict (restrict_op, sockaddr_u *, sockaddr_u *, 262 short, u_short, u_short, u_long); 263 extern void restrict_source (sockaddr_u *, int, u_long); 264 extern void dump_restricts (void); 265 266 /* ntp_timer.c */ 267 extern void init_timer (void); 268 extern void reinit_timer (void); 269 extern void timer (void); 270 extern void timer_clr_stats (void); 271 extern void timer_interfacetimeout (u_long); 272 extern volatile int interface_interval; 273 extern u_long orphwait; /* orphan wait time */ 274 #ifdef AUTOKEY 275 extern char *sys_hostname; /* host name */ 276 extern char *sys_groupname; /* group name */ 277 extern char *group_name; /* group name */ 278 extern u_char sys_revoke; /* keys revoke timeout */ 279 extern u_char sys_automax; /* session key timeout */ 280 #endif /* AUTOKEY */ 281 282 /* ntp_util.c */ 283 extern void init_util (void); 284 extern void write_stats (void); 285 extern void stats_config (int, const char *); 286 extern void record_peer_stats (sockaddr_u *, int, double, double, double, double); 287 extern void record_proto_stats (char *); 288 extern void record_loop_stats (double, double, double, double, int); 289 extern void record_clock_stats (sockaddr_u *, const char *); 290 extern int mprintf_clock_stats(sockaddr_u *, const char *, ...) 291 NTP_PRINTF(2, 3); 292 extern void record_raw_stats (sockaddr_u *srcadr, sockaddr_u *dstadr, l_fp *t1, l_fp *t2, l_fp *t3, l_fp *t4, int leap, int version, int mode, int stratum, int ppoll, int precision, double root_delay, double root_dispersion, u_int32 refid, int len, u_char *extra); 293 extern void check_leap_file (int is_daily_check, u_int32 ntptime, const time_t * systime); 294 extern void record_crypto_stats (sockaddr_u *, const char *); 295 #ifdef DEBUG 296 extern void record_timing_stats (const char *); 297 #endif 298 extern char * fstostr(time_t); /* NTP timescale seconds */ 299 300 /* ntpd.c */ 301 extern void parse_cmdline_opts(int *, char ***); 302 /* 303 * Signals we catch for debugging. 304 */ 305 #define MOREDEBUGSIG SIGUSR1 306 #define LESSDEBUGSIG SIGUSR2 307 /* 308 * Signals which terminate us gracefully. 309 */ 310 #ifndef SYS_WINNT 311 # define SIGDIE1 SIGHUP 312 # define SIGDIE2 SIGINT 313 # define SIGDIE3 SIGQUIT 314 # define SIGDIE4 SIGTERM 315 #endif /* SYS_WINNT */ 316 317 318 /* 319 * Last half: ntpd variables 320 * ------------------------- 321 */ 322 323 /* ntp_config.c */ 324 extern char const * progname; 325 extern int saved_argc; 326 extern char **saved_argv; 327 extern char *sys_phone[]; /* ACTS phone numbers */ 328 #if defined(HAVE_SCHED_SETSCHEDULER) 329 extern int config_priority_override; 330 extern int config_priority; 331 #endif 332 extern char *ntp_signd_socket; 333 extern struct config_tree_tag *cfg_tree_history; 334 335 #ifdef BC_LIST_FRAMEWORK_NOT_YET_USED 336 /* 337 * backwards compatibility flags 338 */ 339 typedef struct bc_entry_tag { 340 int token; 341 int enabled; 342 } bc_entry; 343 344 extern bc_entry bc_list[]; 345 #endif 346 347 /* ntp_control.c */ 348 extern int num_ctl_traps; 349 extern keyid_t ctl_auth_keyid; /* keyid used for authenticating write requests */ 350 351 /* 352 * Statistic counters to keep track of requests and responses. 353 */ 354 extern u_long ctltimereset; /* time stats reset */ 355 extern u_long numctlreq; /* number of requests we've received */ 356 extern u_long numctlbadpkts; /* number of bad control packets */ 357 extern u_long numctlresponses; /* number of resp packets sent with data */ 358 extern u_long numctlfrags; /* number of fragments sent */ 359 extern u_long numctlerrors; /* number of error responses sent */ 360 extern u_long numctltooshort; /* number of too short input packets */ 361 extern u_long numctlinputresp; /* number of responses on input */ 362 extern u_long numctlinputfrag; /* number of fragments on input */ 363 extern u_long numctlinputerr; /* number of input pkts with err bit set */ 364 extern u_long numctlbadoffset; /* number of input pkts with nonzero offset */ 365 extern u_long numctlbadversion; /* number of input pkts with unknown version */ 366 extern u_long numctldatatooshort; /* data too short for count */ 367 extern u_long numctlbadop; /* bad op code found in packet */ 368 extern u_long numasyncmsgs; /* number of async messages we've sent */ 369 370 /* 371 * Other statistics of possible interest 372 */ 373 extern volatile u_long packets_dropped; /* total number of packets dropped on reception */ 374 extern volatile u_long packets_ignored; /* packets received on wild card interface */ 375 extern volatile u_long packets_received;/* total number of packets received */ 376 extern u_long packets_sent; /* total number of packets sent */ 377 extern u_long packets_notsent; /* total number of packets which couldn't be sent */ 378 379 extern volatile u_long handler_calls; /* number of calls to interrupt handler */ 380 extern volatile u_long handler_pkts; /* number of pkts received by handler */ 381 extern u_long io_timereset; /* time counters were reset */ 382 383 /* ntp_io.c */ 384 extern int disable_dynamic_updates; 385 extern u_int sys_ifnum; /* next .ifnum to assign */ 386 extern endpt * any_interface; /* IPv4 wildcard */ 387 extern endpt * any6_interface; /* IPv6 wildcard */ 388 extern endpt * loopback_interface; /* IPv4 loopback for refclocks */ 389 extern endpt * ep_list; /* linked list */ 390 391 /* ntp_loopfilter.c */ 392 extern double drift_comp; /* clock frequency (s/s) */ 393 extern double clock_stability; /* clock stability (s/s) */ 394 extern double clock_max_back; /* max backward offset before step (s) */ 395 extern double clock_max_fwd; /* max forward offset before step (s) */ 396 extern double clock_panic; /* max offset before panic (s) */ 397 extern double clock_phi; /* dispersion rate (s/s) */ 398 extern double clock_minstep; /* step timeout (s) */ 399 extern double clock_codec; /* codec frequency */ 400 #ifdef KERNEL_PLL 401 extern int pll_status; /* status bits for kernel pll */ 402 #endif /* KERNEL_PLL */ 403 404 /* 405 * Clock state machine control flags 406 */ 407 extern int ntp_enable; /* clock discipline enabled */ 408 extern int pll_control; /* kernel support available */ 409 extern int kern_enable; /* kernel support enabled */ 410 extern int hardpps_enable; /* kernel PPS discipline enabled */ 411 extern int ext_enable; /* external clock enabled */ 412 extern int cal_enable; /* refclock calibrate enable */ 413 extern int allow_panic; /* allow panic correction (-g) */ 414 extern int enable_panic_check; /* Can we check allow_panic's state? */ 415 extern int force_step_once; /* always step time once at startup (-G) */ 416 extern int mode_ntpdate; /* exit on first clock set (-q) */ 417 extern int peer_ntpdate; /* count of ntpdate peers */ 418 419 /* 420 * Clock state machine variables 421 */ 422 extern u_char sys_poll; /* system poll interval (log2 s) */ 423 extern int state; /* clock discipline state */ 424 extern int tc_counter; /* poll-adjust counter */ 425 extern u_long last_time; /* time of last clock update (s) */ 426 extern double last_offset; /* last clock offset (s) */ 427 extern u_char allan_xpt; /* Allan intercept (log2 s) */ 428 extern double clock_jitter; /* clock jitter (s) */ 429 extern double sys_offset; /* system offset (s) */ 430 extern double sys_jitter; /* system jitter (s) */ 431 432 /* ntp_monitor.c */ 433 extern u_char mon_hash_bits; /* log2 size of hash table */ 434 extern mon_entry ** mon_hash; /* MRU hash table */ 435 extern mon_entry mon_mru_list; /* mru listhead */ 436 extern u_int mon_enabled; /* MON_OFF (0) or other MON_* */ 437 extern u_int mru_alloc; /* mru list + free list count */ 438 extern u_int mru_entries; /* mru list count */ 439 extern u_int mru_peakentries; /* highest mru_entries */ 440 extern u_int mru_initalloc; /* entries to preallocate */ 441 extern u_int mru_incalloc; /* allocation batch factor */ 442 extern u_int mru_mindepth; /* preempt above this */ 443 extern int mru_maxage; /* for entries older than */ 444 extern u_int mru_maxdepth; /* MRU size hard limit */ 445 extern int mon_age; /* preemption limit */ 446 447 /* ntp_peer.c */ 448 extern struct peer *peer_hash[NTP_HASH_SIZE]; /* peer hash table */ 449 extern int peer_hash_count[NTP_HASH_SIZE]; /* count of in each bucket */ 450 extern struct peer *assoc_hash[NTP_HASH_SIZE]; /* association ID hash table */ 451 extern int assoc_hash_count[NTP_HASH_SIZE];/* count of in each bucket */ 452 extern struct peer *peer_list; /* peer structures list */ 453 extern int peer_count; /* count in peer_list */ 454 extern int peer_free_count; /* count in peer_free */ 455 456 /* 457 * Miscellaneous statistic counters which may be queried. 458 */ 459 extern u_long peer_timereset; /* time stat counters were zeroed */ 460 extern u_long findpeer_calls; /* number of calls to findpeer */ 461 extern u_long assocpeer_calls; /* number of calls to findpeerbyassoc */ 462 extern u_long peer_allocations; /* number of allocations from the free list */ 463 extern u_long peer_demobilizations; /* number of structs freed to free list */ 464 extern int total_peer_structs; /* number of peer structs in circulation */ 465 extern int peer_associations; /* mobilized associations */ 466 extern int peer_preempt; /* preemptable associations */ 467 468 /* ntp_proto.c */ 469 /* 470 * System variables are declared here. See Section 3.2 of the 471 * specification. 472 */ 473 extern u_char sys_leap; /* system leap indicator */ 474 extern u_char sys_stratum; /* system stratum */ 475 extern s_char sys_precision; /* local clock precision */ 476 extern double sys_rootdelay; /* roundtrip delay to primary source */ 477 extern double sys_rootdisp; /* dispersion to primary source */ 478 extern u_int32 sys_refid; /* reference id */ 479 extern l_fp sys_reftime; /* last update time */ 480 extern struct peer *sys_peer; /* current peer */ 481 482 /* 483 * Nonspecified system state variables. 484 */ 485 extern int sys_bclient; /* we set our time to broadcasts */ 486 extern double sys_bdelay; /* broadcast client default delay */ 487 extern int sys_authenticate; /* requre authentication for config */ 488 extern l_fp sys_authdelay; /* authentication delay */ 489 extern u_char sys_bcpollbstep; /* broadcast poll backstep gate */ 490 extern u_long sys_epoch; /* last clock update time */ 491 extern keyid_t sys_private; /* private value for session seed */ 492 extern int sys_manycastserver; /* respond to manycast client pkts */ 493 extern int sys_maxclock; /* maximum survivors */ 494 extern int sys_minclock; /* minimum survivors */ 495 extern int sys_minsane; /* minimum candidates */ 496 extern int sys_floor; /* cluster stratum floor */ 497 extern int sys_ceiling; /* cluster stratum ceiling */ 498 extern u_char sys_ttl[MAX_TTL]; /* ttl mapping vector */ 499 extern u_int sys_ttlmax; /* max ttl mapping vector index */ 500 501 /* 502 * Statistics counters 503 */ 504 extern u_long sys_badauth; /* bad authentication */ 505 extern u_long sys_badlength; /* bad length or format */ 506 extern u_long sys_declined; /* declined */ 507 extern u_long sys_kodsent; /* KoD sent */ 508 extern u_long sys_lamport; /* Lamport violation */ 509 extern u_long sys_limitrejected; /* rate exceeded */ 510 extern u_long sys_newversion; /* current version */ 511 extern u_long sys_oldversion; /* old version */ 512 extern u_long sys_processed; /* packets for this host */ 513 extern u_long sys_received; /* packets received */ 514 extern u_long sys_restricted; /* access denied */ 515 extern u_long sys_stattime; /* time since reset */ 516 extern u_long sys_tsrounding; /* timestamp rounding errors */ 517 518 /* ntp_request.c */ 519 extern keyid_t info_auth_keyid; /* keyid used to authenticate requests */ 520 extern u_long auth_timereset; 521 522 /* ntp_restrict.c */ 523 extern restrict_u * restrictlist4; /* IPv4 restriction list */ 524 extern restrict_u * restrictlist6; /* IPv6 restriction list */ 525 extern int ntp_minpkt; 526 extern u_char ntp_minpoll; 527 528 /* ntp_scanner.c */ 529 extern u_int32 conf_file_sum; /* Simple sum of characters */ 530 531 /* ntp_signd.c */ 532 #ifdef HAVE_NTP_SIGND 533 extern void send_via_ntp_signd(struct recvbuf *, int, keyid_t, int, 534 struct pkt *); 535 #endif 536 537 /* ntp_timer.c */ 538 extern volatile int alarm_flag; /* alarm flag */ 539 extern volatile u_long alarm_overflow; 540 extern u_long current_time; /* seconds since startup */ 541 extern u_long timer_timereset; 542 extern u_long timer_overflows; 543 extern u_long timer_xmtcalls; 544 extern int leap_sec_in_progress; 545 #ifdef LEAP_SMEAR 546 extern struct leap_smear_info leap_smear; 547 extern int leap_smear_intv; 548 #endif 549 #ifdef SYS_WINNT 550 HANDLE WaitableTimerHandle; 551 #endif 552 553 /* ntp_util.c */ 554 extern char statsdir[MAXFILENAME]; 555 extern int stats_control; /* write stats to fileset? */ 556 extern int stats_write_period; /* # of seconds between writes. */ 557 extern double stats_write_tolerance; 558 extern double wander_threshold; 559 560 /* ntpd.c */ 561 extern int nofork; /* no-fork flag */ 562 extern int initializing; /* initializing flag */ 563 #ifdef HAVE_DROPROOT 564 extern int droproot; /* flag: try to drop root privileges after startup */ 565 extern int root_dropped; /* root has been dropped */ 566 extern char *user; /* user to switch to */ 567 extern char *group; /* group to switch to */ 568 extern const char *chrootdir; /* directory to chroot() to */ 569 #endif 570 #ifdef HAVE_WORKING_FORK 571 extern int waitsync_fd_to_close; /* -w/--wait-sync */ 572 #endif 573 574 /* ntservice.c */ 575 #ifdef SYS_WINNT 576 extern int accept_wildcard_if_for_winnt; 577 #endif 578 579 /* refclock_conf.c */ 580 #ifdef REFCLOCK 581 /* refclock configuration table */ 582 extern struct refclock * const refclock_conf[]; 583 extern u_char num_refclock_conf; 584 #endif 585 586