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