1 /* 2 * ntpd.h - Prototypes for ntpd. 3 */ 4 5 #include "ntp_syslog.h" 6 #include "ntp_fp.h" 7 #include "ntp.h" 8 #include "ntp_select.h" 9 #include "ntp_malloc.h" 10 #include "ntp_refclock.h" 11 #include "recvbuff.h" 12 13 #define MAXINTERFACES 512 14 #define MAXFILENAME 128 /* maximum length of a file name */ 15 16 #ifdef SYS_WINNT 17 #define exit service_exit 18 extern void service_exit (int); 19 /* declare the service threads */ 20 void service_main (DWORD, LPTSTR *); 21 void service_ctrl (DWORD); 22 void worker_thread (void *); 23 #define sleep(x) Sleep((DWORD) x * 1000 /* milliseconds */ ); 24 #else 25 #define closesocket close 26 #endif /* SYS_WINNT */ 27 28 /* ntp_config.c */ 29 extern void getconfig P((int, char **)); 30 31 /* ntp_config.c */ 32 extern void ctl_clr_stats P((void)); 33 extern int ctlclrtrap P((struct sockaddr_in *, struct interface *, int)); 34 extern u_short ctlpeerstatus P((struct peer *)); 35 extern int ctlsettrap P((struct sockaddr_in *, struct interface *, int, int)); 36 extern u_short ctlsysstatus P((void)); 37 extern void init_control P((void)); 38 extern void process_control P((struct recvbuf *, int)); 39 extern void report_event P((int, struct peer *)); 40 41 extern double fabs P((double)); 42 extern double sqrt P((double)); 43 44 /* ntp_control.c */ 45 /* 46 * Structure for translation tables between internal system 47 * variable indices and text format. 48 */ 49 struct ctl_var { 50 u_short code; 51 u_short flags; 52 char *text; 53 }; 54 /* 55 * Flag values 56 */ 57 #define CAN_READ 0x01 58 #define CAN_WRITE 0x02 59 60 #define DEF 0x20 61 #define PADDING 0x40 62 #define EOV 0x80 63 64 #define RO (CAN_READ) 65 #define WO (CAN_WRITE) 66 #define RW (CAN_READ|CAN_WRITE) 67 68 extern char * add_var P((struct ctl_var **, unsigned long, int)); 69 extern void free_varlist P((struct ctl_var *)); 70 extern void set_var P((struct ctl_var **, const char *, unsigned long, int)); 71 extern void set_sys_var P((char *, unsigned long, int)); 72 73 /* ntp_intres.c */ 74 extern void ntp_res_name P((u_int32, u_short)); 75 extern void ntp_res_recv P((void)); 76 extern void ntp_intres P((void)); 77 78 /* ntp_io.c */ 79 extern struct interface *findinterface P((struct sockaddr_in *)); 80 extern struct interface *findbcastinter P((struct sockaddr_in *)); 81 82 extern void init_io P((void)); 83 extern void input_handler P((l_fp *)); 84 extern void io_clr_stats P((void)); 85 extern void io_setbclient P((void)); 86 extern void io_unsetbclient P((void)); 87 extern void io_multicast_add P((u_int32)); 88 extern void io_multicast_del P((u_int32)); 89 extern void kill_asyncio P((void)); 90 91 extern void sendpkt P((struct sockaddr_in *, struct interface *, int, struct pkt *, int)); 92 #ifdef HAVE_SIGNALED_IO 93 extern void wait_for_signal P((void)); 94 extern void unblock_io_and_alarm P((void)); 95 extern void block_io_and_alarm P((void)); 96 #endif 97 98 /* ntp_leap.c */ 99 extern void init_leap P((void)); 100 extern void leap_process P((void)); 101 extern int leap_setleap P((int, int)); 102 /* 103 * there seems to be a bug in the IRIX 4 compiler which prevents 104 * u_char from beeing used in prototyped functions. 105 * This is also true AIX compiler. 106 * So give up and define it to be int. WLJ 107 */ 108 extern int leap_actual P((int)); 109 110 /* ntp_loopfilter.c */ 111 extern void init_loopfilter P((void)); 112 extern int local_clock P((struct peer *, double, double)); 113 extern void adj_host_clock P((void)); 114 extern void loop_config P((int, double)); 115 extern void huffpuff P((void)); 116 117 /* ntp_monitor.c */ 118 extern void init_mon P((void)); 119 extern void mon_start P((int)); 120 extern void mon_stop P((int)); 121 extern void ntp_monitor P((struct recvbuf *)); 122 123 /* ntp_peer.c */ 124 extern void init_peer P((void)); 125 extern struct peer *findexistingpeer P((struct sockaddr_in *, struct peer *, int)); 126 extern struct peer *findpeer P((struct sockaddr_in *, struct interface *, int, int, int *)); 127 extern struct peer *findpeerbyassoc P((u_int)); 128 extern struct peer *newpeer P((struct sockaddr_in *, struct interface *, int, int, int, int, u_int, u_int, int, keyid_t)); 129 extern void peer_all_reset P((void)); 130 extern void peer_clr_stats P((void)); 131 extern struct peer *peer_config P((struct sockaddr_in *, struct interface *, int, int, int, int, u_int, int, keyid_t, u_char *)); 132 extern void peer_reset P((struct peer *)); 133 extern int peer_unconfig P((struct sockaddr_in *, struct interface *, int)); 134 extern void unpeer P((struct peer *)); 135 extern void clear_all P((void)); 136 #ifdef AUTOKEY 137 extern void expire_all P((void)); 138 #endif /* AUTOKEY */ 139 extern struct peer *findmanycastpeer P((struct recvbuf *)); 140 extern void resetmanycast P((void)); 141 142 /* ntp_proto.c */ 143 extern void transmit P((struct peer *)); 144 extern void receive P((struct recvbuf *)); 145 extern void peer_clear P((struct peer *)); 146 extern void process_packet P((struct peer *, struct pkt *, l_fp *)); 147 extern void clock_select P((void)); 148 149 /* 150 * there seems to be a bug in the IRIX 4 compiler which prevents 151 * u_char from beeing used in prototyped functions. 152 * This is also true AIX compiler. 153 * So give up and define it to be int. WLJ 154 */ 155 extern void poll_update P((struct peer *, int)); 156 157 extern void clear P((struct peer *)); 158 extern void clock_filter P((struct peer *, double, double, double)); 159 extern void init_proto P((void)); 160 extern void proto_config P((int, u_long, double)); 161 extern void proto_clr_stats P((void)); 162 163 #ifdef REFCLOCK 164 /* ntp_refclock.c */ 165 extern int refclock_newpeer P((struct peer *)); 166 extern void refclock_unpeer P((struct peer *)); 167 extern void refclock_receive P((struct peer *)); 168 extern void refclock_transmit P((struct peer *)); 169 extern void init_refclock P((void)); 170 #endif /* REFCLOCK */ 171 172 /* ntp_request.c */ 173 extern void init_request P((void)); 174 extern void process_private P((struct recvbuf *, int)); 175 176 /* ntp_restrict.c */ 177 extern void init_restrict P((void)); 178 extern int restrictions P((struct sockaddr_in *)); 179 extern void hack_restrict P((int, struct sockaddr_in *, struct sockaddr_in *, int, int)); 180 181 /* ntp_timer.c */ 182 extern void init_timer P((void)); 183 extern void timer P((void)); 184 extern void timer_clr_stats P((void)); 185 #ifdef AUTOKEY 186 extern char *sys_hostname; 187 extern l_fp sys_revoketime; 188 #endif /* AUTOKEY */ 189 190 /* ntp_util.c */ 191 extern void init_util P((void)); 192 extern void hourly_stats P((void)); 193 extern void stats_config P((int, char *)); 194 extern void record_peer_stats P((struct sockaddr_in *, int, double, double, double, double)); 195 extern void record_loop_stats P((double, double, double, double, int)); 196 extern void record_clock_stats P((struct sockaddr_in *, const char *)); 197 extern void record_raw_stats P((struct sockaddr_in *, struct sockaddr_in *, l_fp *, l_fp *, l_fp *, l_fp *)); 198 199 /* 200 * Variable declarations for ntpd. 201 */ 202 203 /* ntp_config.c */ 204 extern char const * progname; 205 extern char sys_phone[][MAXDIAL]; /* ACTS phone numbers */ 206 extern char pps_device[]; /* PPS device name */ 207 #if defined(HAVE_SCHED_SETSCHEDULER) 208 extern int config_priority_override; 209 extern int config_priority; 210 #endif 211 212 /* ntp_control.c */ 213 struct ctl_trap; 214 extern struct ctl_trap ctl_trap[]; 215 extern int num_ctl_traps; 216 extern keyid_t ctl_auth_keyid; /* keyid used for authenticating write requests */ 217 218 /* 219 * Statistic counters to keep track of requests and responses. 220 */ 221 extern u_long ctltimereset; /* time stats reset */ 222 extern u_long numctlreq; /* number of requests we've received */ 223 extern u_long numctlbadpkts; /* number of bad control packets */ 224 extern u_long numctlresponses; /* number of resp packets sent with data */ 225 extern u_long numctlfrags; /* number of fragments sent */ 226 extern u_long numctlerrors; /* number of error responses sent */ 227 extern u_long numctltooshort; /* number of too short input packets */ 228 extern u_long numctlinputresp; /* number of responses on input */ 229 extern u_long numctlinputfrag; /* number of fragments on input */ 230 extern u_long numctlinputerr; /* number of input pkts with err bit set */ 231 extern u_long numctlbadoffset; /* number of input pkts with nonzero offset */ 232 extern u_long numctlbadversion; /* number of input pkts with unknown version */ 233 extern u_long numctldatatooshort; /* data too short for count */ 234 extern u_long numctlbadop; /* bad op code found in packet */ 235 extern u_long numasyncmsgs; /* number of async messages we've sent */ 236 237 /* ntp_intres.c */ 238 extern keyid_t req_keyid; /* request keyid */ 239 extern char * req_file; /* name of the file with configuration info */ 240 241 /* 242 * Other statistics of possible interest 243 */ 244 extern volatile u_long packets_dropped; /* total number of packets dropped on reception */ 245 extern volatile u_long packets_ignored; /* packets received on wild card interface */ 246 extern volatile u_long packets_received;/* total number of packets received */ 247 extern u_long packets_sent; /* total number of packets sent */ 248 extern u_long packets_notsent; /* total number of packets which couldn't be sent */ 249 250 extern volatile u_long handler_calls; /* number of calls to interrupt handler */ 251 extern volatile u_long handler_pkts; /* number of pkts received by handler */ 252 extern u_long io_timereset; /* time counters were reset */ 253 254 /* 255 * Interface stuff 256 */ 257 extern struct interface *any_interface; /* default interface */ 258 extern struct interface *loopback_interface; /* loopback interface */ 259 260 /* 261 * File descriptor masks etc. for call to select 262 */ 263 extern fd_set activefds; 264 extern int maxactivefd; 265 266 /* ntp_loopfilter.c */ 267 extern double drift_comp; /* clock frequency (s/s) */ 268 extern double clock_stability; /* clock stability (s/s) */ 269 extern double clock_max; /* max offset before step (s) */ 270 extern double clock_panic; /* max offset before panic (s) */ 271 extern double clock_phi; /* dispersion rate (s/s) */ 272 extern double clock_minstep; /* step timeout (s) */ 273 extern u_long pps_control; /* last pps sample time */ 274 #ifdef KERNEL_PLL 275 extern int pll_status; /* status bits for kernel pll */ 276 #endif /* KERNEL_PLL */ 277 278 /* 279 * Clock state machine control flags 280 */ 281 extern int ntp_enable; /* clock discipline enabled */ 282 extern int pll_control; /* kernel support available */ 283 extern int kern_enable; /* kernel support enabled */ 284 extern int pps_enable; /* kernel PPS discipline enabled */ 285 extern int ext_enable; /* external clock enabled */ 286 extern int cal_enable; /* refclock calibrate enable */ 287 extern int allow_step; /* allow step correction */ 288 extern int allow_panic; /* allow panic correction */ 289 extern int mode_ntpdate; /* exit on first clock set */ 290 extern int peer_ntpdate; /* count of ntpdate peers */ 291 292 /* 293 * Clock state machine variables 294 */ 295 extern u_char sys_poll; /* system poll interval (log2 s) */ 296 extern u_char sys_minpoll; /* min system poll interval (log2 s) */ 297 extern int state; /* clock discipline state */ 298 extern int tc_counter; /* poll-adjust counter */ 299 extern u_long last_time; /* time of last clock update (s) */ 300 extern double last_offset; /* last clock offset (s) */ 301 extern double allan_xpt; /* Allan intercept (s) */ 302 extern double sys_error; /* system RMS error (s) */ 303 extern double sys_jitter; /* system RMS jitter (s) */ 304 305 /* ntp_monitor.c */ 306 extern struct mon_data mon_mru_list; 307 extern struct mon_data mon_fifo_list; 308 extern int mon_enabled; 309 310 /* ntp_peer.c */ 311 extern struct peer *peer_hash[]; /* peer hash table */ 312 extern int peer_hash_count[]; /* count of peers in each bucket */ 313 extern struct peer *assoc_hash[]; /* association ID hash table */ 314 extern int assoc_hash_count[]; 315 extern int peer_free_count; 316 317 /* 318 * Miscellaneous statistic counters which may be queried. 319 */ 320 extern u_long peer_timereset; /* time stat counters were zeroed */ 321 extern u_long findpeer_calls; /* number of calls to findpeer */ 322 extern u_long assocpeer_calls; /* number of calls to findpeerbyassoc */ 323 extern u_long peer_allocations; /* number of allocations from the free list */ 324 extern u_long peer_demobilizations; /* number of structs freed to free list */ 325 extern int total_peer_structs; /* number of peer structs in circulation */ 326 extern int peer_associations; /* number of active associations */ 327 328 /* ntp_proto.c */ 329 /* 330 * System variables are declared here. See Section 3.2 of the 331 * specification. 332 */ 333 extern u_char sys_leap; /* system leap indicator */ 334 extern u_char sys_stratum; /* stratum of system */ 335 extern s_char sys_precision; /* local clock precision */ 336 extern double sys_rootdelay; /* distance to current sync source */ 337 extern double sys_rootdispersion; /* dispersion of system clock */ 338 extern u_int32 sys_refid; /* reference source for local clock */ 339 extern l_fp sys_reftime; /* time we were last updated */ 340 extern struct peer *sys_peer; /* our current peer */ 341 extern struct peer *sys_prefer; /* our cherished peer */ 342 extern u_long sys_automax; /* maximum session key lifetime */ 343 344 /* 345 * Nonspecified system state variables. 346 */ 347 extern int sys_bclient; /* we set our time to broadcasts */ 348 extern double sys_bdelay; /* broadcast client default delay */ 349 extern int sys_authenticate; /* requre authentication for config */ 350 extern l_fp sys_authdelay; /* authentication delay */ 351 extern keyid_t sys_private; /* private value for session seed */ 352 extern int sys_manycastserver; /* 1 => respond to manycast client pkts */ 353 354 /* 355 * Statistics counters 356 */ 357 extern u_long sys_stattime; /* time when we started recording */ 358 extern u_long sys_badstratum; /* packets with invalid stratum */ 359 extern u_long sys_oldversionpkt; /* old version packets received */ 360 extern u_long sys_newversionpkt; /* new version packets received */ 361 extern u_long sys_unknownversion; /* don't know version packets */ 362 extern u_long sys_badlength; /* packets with bad length */ 363 extern u_long sys_processed; /* packets processed */ 364 extern u_long sys_badauth; /* packets dropped because of auth */ 365 extern u_long sys_limitrejected; /* pkts rejected due to client count per net */ 366 367 /* ntp_refclock.c */ 368 #ifdef REFCLOCK 369 #if defined(PPS) || defined(HAVE_PPSAPI) 370 extern int fdpps; /* pps file descriptor */ 371 #endif /* PPS */ 372 #endif 373 374 /* ntp_request.c */ 375 extern keyid_t info_auth_keyid; /* keyid used to authenticate requests */ 376 377 /* ntp_restrict.c */ 378 extern struct restrictlist *restrictlist; /* the restriction list */ 379 extern u_long client_limit; 380 extern u_long client_limit_period; 381 382 /* ntp_timer.c */ 383 extern volatile int alarm_flag; /* alarm flag */ 384 extern u_long sys_revoke; /* keys revoke timeout */ 385 extern volatile u_long alarm_overflow; 386 extern u_long current_time; /* current time (s) */ 387 extern u_long timer_timereset; 388 extern u_long timer_overflows; 389 extern u_long timer_xmtcalls; 390 391 /* ntp_util.c */ 392 extern int stats_control; /* write stats to fileset? */ 393 394 /* ntpd.c */ 395 extern volatile int debug; /* debugging flag */ 396 extern int nofork; /* no-fork flag */ 397 extern int initializing; /* initializing flag */ 398 399 /* refclock_conf.c */ 400 #ifdef REFCLOCK 401 extern struct refclock *refclock_conf[]; /* refclock configuration table */ 402 extern u_char num_refclock_conf; 403 #endif 404