contrib/ntp/ntpd/refclock_parse.c

   1 /*
   2  * /src/NTP/REPOSITORY/ntp4-dev/ntpd/refclock_parse.c,v 4.81 2009/05/01 10:15:29 kardel RELEASE_20090105_A
   3  *
   4  * refclock_parse.c,v 4.81 2009/05/01 10:15:29 kardel RELEASE_20090105_A
   5  *
   6  * generic reference clock driver for several DCF/GPS/MSF/... receivers
   7  *
   8  * PPS notes:
   9  *   On systems that support PPSAPI (RFC2783) PPSAPI is the
  10  *   preferred interface.
  11  *
  12  *   Optionally make use of a STREAMS module for input processing where
  13  *   available and configured. This STREAMS module reduces the time
  14  *   stamp latency for serial and PPS events.
  15  *   Currently the STREAMS module is only available for Suns running
  16  *   SunOS 4.x and SunOS5.x.
  17  *
  18  * Copyright (c) 1995-2009 by Frank Kardel <kardel <AT> ntp.org>
  19  * Copyright (c) 1989-1994 by Frank Kardel, Friedrich-Alexander Universitaet Erlangen-Nuernberg, Germany
  20  *
  21  * Redistribution and use in source and binary forms, with or without
  22  * modification, are permitted provided that the following conditions
  23  * are met:
  24  * 1. Redistributions of source code must retain the above copyright
  25  *    notice, this list of conditions and the following disclaimer.
  26  * 2. Redistributions in binary form must reproduce the above copyright
  27  *    notice, this list of conditions and the following disclaimer in the
  28  *    documentation and/or other materials provided with the distribution.
  29  * 3. Neither the name of the author nor the names of its contributors
  30  *    may be used to endorse or promote products derived from this software
  31  *    without specific prior written permission.
  32  *
  33  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  34  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  35  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  36  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  37  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  38  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  39  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  40  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  41  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  42  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  43  * SUCH DAMAGE.
  44  *
  45  */
  46
  47 #ifdef HAVE_CONFIG_H
  48 # include "config.h"
  49 #endif
  50
  51 #include "ntp_types.h"
  52
  53 #if defined(REFCLOCK) && defined(CLOCK_PARSE)
  54
  55 /*
  56  * This driver currently provides the support for
  57  *   - Meinberg receiver DCF77 PZF535 (TCXO version)        (DCF)
  58  *   - Meinberg receiver DCF77 PZF535 (OCXO version)        (DCF)
  59  *   - Meinberg receiver DCF77 PZF509                       (DCF)
  60  *   - Meinberg receiver DCF77 AM receivers (e.g. C51)      (DCF)
  61  *   - IGEL CLOCK                                           (DCF)
  62  *   - ELV DCF7000                                          (DCF)
  63  *   - Schmid clock                                         (DCF)
  64  *   - Conrad DCF77 receiver module                         (DCF)
  65  *   - FAU DCF77 NTP receiver (TimeBrick)                   (DCF)
  66  *   - WHARTON 400A Series clock                            (DCF)
  67  *
  68  *   - Meinberg GPS receivers                               (GPS)
  69  *   - Trimble (TSIP and TAIP protocol)                     (GPS)
  70  *
  71  *   - RCC8000 MSF Receiver                                 (MSF)
  72  *   - VARITEXT clock                                       (MSF)
  73  */
  74
  75 /*
  76  * Meinberg receivers are usually connected via a
  77  * 9600/7E1 or 19200/8N1 serial line.
  78  *
  79  * The Meinberg GPS receivers also have a special NTP time stamp
  80  * format. The firmware release is Uni-Erlangen.
  81  *
  82  * Meinberg generic receiver setup:
  83  *      output time code every second
  84  *      Baud rate 9600 7E2S
  85  *
  86  * Meinberg GPS receiver setup:
  87  *      output time code every second
  88  *      Baudrate 19200 8N1
  89  *
  90  * This software supports the standard data formats used
  91  * in Meinberg receivers.
  92  *
  93  * Special software versions are only sensible for the
  94  * oldest GPS receiver, GPS16x. For newer receiver types
  95  * the output string format can be configured at the device,
  96  * and the device name is generally GPSxxx instead of GPS16x.
  97  *
  98  * Meinberg can be reached via: http://www.meinberg.de/
  99  */
 100
 101 #include "ntpd.h"
 102 #include "ntp_refclock.h"
 103 #include "timevalops.h"         /* includes <sys/time.h> */
 104 #include "ntp_control.h"
 105 #include "ntp_string.h"
 106
 107 #include <stdio.h>
 108 #include <ctype.h>
 109 #ifndef TM_IN_SYS_TIME
 110 # include <time.h>
 111 #endif
 112
 113 #ifdef HAVE_UNISTD_H
 114 # include <unistd.h>
 115 #endif
 116
 117 #if !defined(STREAM) && !defined(HAVE_SYSV_TTYS) && !defined(HAVE_BSD_TTYS) && !defined(HAVE_TERMIOS)
 118 # include "Bletch:  Define one of {STREAM,HAVE_SYSV_TTYS,HAVE_TERMIOS}"
 119 #endif
 120
 121 #ifdef STREAM
 122 # include <sys/stream.h>
 123 # include <sys/stropts.h>
 124 #endif
 125
 126 #ifdef HAVE_TERMIOS
 127 # include <termios.h>
 128 # define TTY_GETATTR(_FD_, _ARG_) tcgetattr((_FD_), (_ARG_))
 129 # define TTY_SETATTR(_FD_, _ARG_) tcsetattr((_FD_), TCSANOW, (_ARG_))
 130 # undef HAVE_SYSV_TTYS
 131 #endif
 132
 133 #ifdef HAVE_SYSV_TTYS
 134 # define TTY_GETATTR(_FD_, _ARG_) ioctl((_FD_), TCGETA, (_ARG_))
 135 # define TTY_SETATTR(_FD_, _ARG_) ioctl((_FD_), TCSETAW, (_ARG_))
 136 #endif
 137
 138 #ifdef HAVE_BSD_TTYS
 139 /* #error CURRENTLY NO BSD TTY SUPPORT */
 140 # include "Bletch: BSD TTY not currently supported"
 141 #endif
 142
 143 #ifdef HAVE_SYS_IOCTL_H
 144 # include <sys/ioctl.h>
 145 #endif
 146
 147 #ifdef HAVE_PPSAPI
 148 # include "ppsapi_timepps.h"
 149 # include "refclock_atom.h"
 150 #endif
 151
 152 #ifdef PPS
 153 # ifdef HAVE_SYS_PPSCLOCK_H
 154 #  include <sys/ppsclock.h>
 155 # endif
 156 # ifdef HAVE_TIO_SERIAL_STUFF
 157 #  include <linux/serial.h>
 158 # endif
 159 #endif
 160
 161 # define BUFFER_SIZE(_BUF, _PTR)       ((int)((_BUF) + sizeof(_BUF) - (_PTR)))
 162 # define BUFFER_SIZES(_BUF, _PTR, _SZ) ((int)((_BUF) + (_SZ) - (_PTR)))
 163
 164 /*
 165  * document type of PPS interfacing - copy of ifdef mechanism in local_input()
 166  */
 167 #undef PPS_METHOD
 168
 169 #ifdef HAVE_PPSAPI
 170 #define PPS_METHOD "PPS API"
 171 #else
 172 #ifdef TIOCDCDTIMESTAMP
 173 #define PPS_METHOD "TIOCDCDTIMESTAMP"
 174 #else /* TIOCDCDTIMESTAMP */
 175 #if defined(HAVE_STRUCT_PPSCLOCKEV) && (defined(HAVE_CIOGETEV) || defined(HAVE_TIOCGPPSEV))
 176 #ifdef HAVE_CIOGETEV
 177 #define PPS_METHOD "CIOGETEV"
 178 #endif
 179 #ifdef HAVE_TIOCGPPSEV
 180 #define PPS_METHOD "TIOCGPPSEV"
 181 #endif
 182 #endif
 183 #endif /* TIOCDCDTIMESTAMP */
 184 #endif /* HAVE_PPSAPI */
 185
 186 /*
 187  * COND_DEF can be conditionally defined as DEF or 0. If defined as DEF
 188  * then some more parse-specific variables are flagged to be printed with
 189  * "ntpq -c cv <assid>". This can be lengthy, so by default COND_DEF
 190  * should be defined as 0.
 191  */
 192 #if 0
 193 # define COND_DEF   DEF   // enable this for testing
 194 #else
 195 # define COND_DEF   0     // enable this by default
 196 #endif
 197
 198 #include "ntp_io.h"
 199 #include "ntp_stdlib.h"
 200
 201 #include "parse.h"
 202 #include "mbg_gps166.h"
 203 #include "trimble.h"
 204 #include "binio.h"
 205 #include "ascii.h"
 206 #include "ieee754io.h"
 207 #include "recvbuff.h"
 208
 209 static char rcsid[] = "refclock_parse.c,v 4.81 2009/05/01 10:15:29 kardel RELEASE_20090105_A+POWERUPTRUST";
 210
 211 /**===========================================================================
 212  ** external interface to ntp mechanism
 213  **/
 214
 215 static  int     parse_start     (int, struct peer *);
 216 static  void    parse_shutdown  (int, struct peer *);
 217 static  void    parse_poll      (int, struct peer *);
 218 static  void    parse_control   (int, const struct refclockstat *, struct refclockstat *, struct peer *);
 219
 220 struct  refclock refclock_parse = {
 221         parse_start,
 222         parse_shutdown,
 223         parse_poll,
 224         parse_control,
 225         noentry,
 226         noentry,
 227         NOFLAGS
 228 };
 229
 230 /*
 231  * Definitions
 232  */
 233 #define MAXUNITS        4       /* maximum number of "PARSE" units permitted */
 234 #define PARSEDEVICE     "/dev/refclock-%d" /* device to open %d is unit number */
 235 #define PARSEPPSDEVICE  "/dev/refclockpps-%d" /* optional pps device to open %d is unit number */
 236
 237 #undef ABS
 238 #define ABS(_X_) (((_X_) < 0) ? -(_X_) : (_X_))
 239
 240 #define PARSE_HARDPPS_DISABLE 0
 241 #define PARSE_HARDPPS_ENABLE  1
 242
 243 /**===========================================================================
 244  ** function vector for dynamically binding io handling mechanism
 245  **/
 246
 247 struct parseunit;               /* to keep inquiring minds happy */
 248
 249 typedef struct bind
 250 {
 251   const char *bd_description;                                   /* name of type of binding */
 252   int   (*bd_init)     (struct parseunit *);                    /* initialize */
 253   void  (*bd_end)      (struct parseunit *);                    /* end */
 254   int   (*bd_setcs)    (struct parseunit *, parsectl_t *);      /* set character size */
 255   int   (*bd_disable)  (struct parseunit *);                    /* disable */
 256   int   (*bd_enable)   (struct parseunit *);                    /* enable */
 257   int   (*bd_getfmt)   (struct parseunit *, parsectl_t *);      /* get format */
 258   int   (*bd_setfmt)   (struct parseunit *, parsectl_t *);      /* setfmt */
 259   int   (*bd_timecode) (struct parseunit *, parsectl_t *);      /* get time code */
 260   void  (*bd_receive)  (struct recvbuf *);                      /* receive operation */
 261   int   (*bd_io_input) (struct recvbuf *);                      /* input operation */
 262 } bind_t;
 263
 264 #define PARSE_END(_X_)                  (*(_X_)->binding->bd_end)(_X_)
 265 #define PARSE_SETCS(_X_, _CS_)          (*(_X_)->binding->bd_setcs)(_X_, _CS_)
 266 #define PARSE_ENABLE(_X_)               (*(_X_)->binding->bd_enable)(_X_)
 267 #define PARSE_DISABLE(_X_)              (*(_X_)->binding->bd_disable)(_X_)
 268 #define PARSE_GETFMT(_X_, _DCT_)        (*(_X_)->binding->bd_getfmt)(_X_, _DCT_)
 269 #define PARSE_SETFMT(_X_, _DCT_)        (*(_X_)->binding->bd_setfmt)(_X_, _DCT_)
 270 #define PARSE_GETTIMECODE(_X_, _DCT_)   (*(_X_)->binding->bd_timecode)(_X_, _DCT_)
 271
 272 /*
 273  * special handling flags
 274  */
 275 #define PARSE_F_PPSONSECOND     0x00000001 /* PPS pulses are on second */
 276 #define PARSE_F_POWERUPTRUST    0x00000100 /* POWERUP state ist trusted for */
 277                                            /* trusttime after SYNC was seen */
 278 /**===========================================================================
 279  ** error message regression handling
 280  **
 281  ** there are quite a few errors that can occur in rapid succession such as
 282  ** noisy input data or no data at all. in order to reduce the amount of
 283  ** syslog messages in such case, we are using a backoff algorithm. We limit
 284  ** the number of error messages of a certain class to 1 per time unit. if a
 285  ** configurable number of messages is displayed that way, we move on to the
 286  ** next time unit / count for that class. a count of messages that have been
 287  ** suppressed is held and displayed whenever a corresponding message is
 288  ** displayed. the time units for a message class will also be displayed.
 289  ** whenever an error condition clears we reset the error message state,
 290  ** thus we would still generate much output on pathological conditions
 291  ** where the system oscillates between OK and NOT OK states. coping
 292  ** with that condition is currently considered too complicated.
 293  **/
 294
 295 #define ERR_ALL         (unsigned)~0    /* "all" errors */
 296 #define ERR_BADDATA     (unsigned)0     /* unusable input data/conversion errors */
 297 #define ERR_NODATA      (unsigned)1     /* no input data */
 298 #define ERR_BADIO       (unsigned)2     /* read/write/select errors */
 299 #define ERR_BADSTATUS   (unsigned)3     /* unsync states */
 300 #define ERR_BADEVENT    (unsigned)4     /* non nominal events */
 301 #define ERR_INTERNAL    (unsigned)5     /* internal error */
 302 #define ERR_CNT         (unsigned)(ERR_INTERNAL+1)
 303
 304 #define ERR(_X_)        if (list_err(parse, (_X_)))
 305
 306 struct errorregression
 307 {
 308         u_long err_count;       /* number of repititions per class */
 309         u_long err_delay;       /* minimum delay between messages */
 310 };
 311
 312 static struct errorregression
 313 err_baddata[] =                 /* error messages for bad input data */
 314 {
 315         { 1,       0 },         /* output first message immediately */
 316         { 5,      60 },         /* output next five messages in 60 second intervals */
 317         { 3,    3600 },         /* output next 3 messages in hour intervals */
 318         { 0, 12*3600 }          /* repeat messages only every 12 hours */
 319 };
 320
 321 static struct errorregression
 322 err_nodata[] =                  /* error messages for missing input data */
 323 {
 324         { 1,       0 },         /* output first message immediately */
 325         { 5,      60 },         /* output next five messages in 60 second intervals */
 326         { 3,    3600 },         /* output next 3 messages in hour intervals */
 327         { 0, 12*3600 }          /* repeat messages only every 12 hours */
 328 };
 329
 330 static struct errorregression
 331 err_badstatus[] =               /* unsynchronized state messages */
 332 {
 333         { 1,       0 },         /* output first message immediately */
 334         { 5,      60 },         /* output next five messages in 60 second intervals */
 335         { 3,    3600 },         /* output next 3 messages in hour intervals */
 336         { 0, 12*3600 }          /* repeat messages only every 12 hours */
 337 };
 338
 339 static struct errorregression
 340 err_badio[] =                   /* io failures (bad reads, selects, ...) */
 341 {
 342         { 1,       0 },         /* output first message immediately */
 343         { 5,      60 },         /* output next five messages in 60 second intervals */
 344         { 5,    3600 },         /* output next 3 messages in hour intervals */
 345         { 0, 12*3600 }          /* repeat messages only every 12 hours */
 346 };
 347
 348 static struct errorregression
 349 err_badevent[] =                /* non nominal events */
 350 {
 351         { 20,      0 },         /* output first message immediately */
 352         { 6,      60 },         /* output next five messages in 60 second intervals */
 353         { 5,    3600 },         /* output next 3 messages in hour intervals */
 354         { 0, 12*3600 }          /* repeat messages only every 12 hours */
 355 };
 356
 357 static struct errorregression
 358 err_internal[] =                /* really bad things - basically coding/OS errors */
 359 {
 360         { 0,       0 },         /* output all messages immediately */
 361 };
 362
 363 static struct errorregression *
 364 err_tbl[] =
 365 {
 366         err_baddata,
 367         err_nodata,
 368         err_badio,
 369         err_badstatus,
 370         err_badevent,
 371         err_internal
 372 };
 373
 374 struct errorinfo
 375 {
 376         u_long err_started;     /* begin time (ntp) of error condition */
 377         u_long err_last;        /* last time (ntp) error occurred */
 378         u_long err_cnt; /* number of error repititions */
 379         u_long err_suppressed;  /* number of suppressed messages */
 380         struct errorregression *err_stage; /* current error stage */
 381 };
 382
 383 /**===========================================================================
 384  ** refclock instance data
 385  **/
 386
 387 struct parseunit
 388 {
 389         /*
 390          * NTP management
 391          */
 392         struct peer         *peer;              /* backlink to peer structure - refclock inactive if 0  */
 393         struct refclockproc *generic;           /* backlink to refclockproc structure */
 394
 395         /*
 396          * PARSE io
 397          */
 398         bind_t       *binding;          /* io handling binding */
 399
 400         /*
 401          * parse state
 402          */
 403         parse_t       parseio;          /* io handling structure (user level parsing) */
 404
 405         /*
 406          * type specific parameters
 407          */
 408         struct parse_clockinfo   *parse_type;           /* link to clock description */
 409
 410         /*
 411          * clock state handling/reporting
 412          */
 413         u_char        flags;            /* flags (leap_control) */
 414         u_long        lastchange;       /* time (ntp) when last state change accured */
 415         u_long        statetime[CEVNT_MAX+1]; /* accumulated time of clock states */
 416         u_long        pollneeddata;     /* current_time(!=0) for receive sample expected in PPS mode */
 417         u_short       lastformat;       /* last format used */
 418         u_long        lastsync;         /* time (ntp) when clock was last seen fully synchronized */
 419         u_long        maxunsync;        /* max time in seconds a receiver is trusted after loosing synchronisation */
 420         double        ppsphaseadjust;   /* phase adjustment of PPS time stamp */
 421         u_long        lastmissed;       /* time (ntp) when poll didn't get data (powerup heuristic) */
 422         u_long        ppsserial;        /* magic cookie for ppsclock serials (avoids stale ppsclock data) */
 423         int           ppsfd;            /* fd to ise for PPS io */
 424 #ifdef HAVE_PPSAPI
 425         int           hardppsstate;     /* current hard pps state */
 426         struct refclock_atom atom;      /* PPSAPI structure */
 427 #endif
 428         parsetime_t   timedata;         /* last (parse module) data */
 429         void         *localdata;        /* optional local, receiver-specific data */
 430         unsigned long localstate;       /* private local state */
 431         struct errorinfo errors[ERR_CNT];  /* error state table for suppressing excessive error messages */
 432         struct ctl_var *kv;             /* additional pseudo variables */
 433         u_long        laststatistic;    /* time when staticstics where output */
 434 };
 435
 436
 437 /**===========================================================================
 438  ** Clockinfo section all parameter for specific clock types
 439  ** includes NTP parameters, TTY parameters and IO handling parameters
 440  **/
 441
 442 static  void    poll_dpoll      (struct parseunit *);
 443 static  void    poll_poll       (struct peer *);
 444 static  int     poll_init       (struct parseunit *);
 445
 446 typedef struct poll_info
 447 {
 448         u_long      rate;               /* poll rate - once every "rate" seconds - 0 off */
 449         const char *string;             /* string to send for polling */
 450         u_long      count;              /* number of characters in string */
 451 } poll_info_t;
 452
 453 #define NO_CL_FLAGS     0
 454 #define NO_POLL         0
 455 #define NO_INIT         0
 456 #define NO_END          0
 457 #define NO_EVENT        0
 458 #define NO_LCLDATA      0
 459 #define NO_MESSAGE      0
 460 #define NO_PPSDELAY     0
 461
 462 #define DCF_ID          "DCF"   /* generic DCF */
 463 #define DCF_A_ID        "DCFa"  /* AM demodulation */
 464 #define DCF_P_ID        "DCFp"  /* psuedo random phase shift */
 465 #define GPS_ID          "GPS"   /* GPS receiver */
 466
 467 #define NOCLOCK_ROOTDELAY       0.0
 468 #define NOCLOCK_BASEDELAY       0.0
 469 #define NOCLOCK_DESCRIPTION     0
 470 #define NOCLOCK_MAXUNSYNC       0
 471 #define NOCLOCK_CFLAG           0
 472 #define NOCLOCK_IFLAG           0
 473 #define NOCLOCK_OFLAG           0
 474 #define NOCLOCK_LFLAG           0
 475 #define NOCLOCK_ID              "TILT"
 476 #define NOCLOCK_POLL            NO_POLL
 477 #define NOCLOCK_INIT            NO_INIT
 478 #define NOCLOCK_END             NO_END
 479 #define NOCLOCK_DATA            NO_LCLDATA
 480 #define NOCLOCK_FORMAT          ""
 481 #define NOCLOCK_TYPE            CTL_SST_TS_UNSPEC
 482 #define NOCLOCK_SAMPLES         0
 483 #define NOCLOCK_KEEP            0
 484
 485 #define DCF_TYPE                CTL_SST_TS_LF
 486 #define GPS_TYPE                CTL_SST_TS_UHF
 487
 488 /*
 489  * receiver specific constants
 490  */
 491 #define MBG_SPEED               (B9600)
 492 #define MBG_CFLAG               (CS7|PARENB|CREAD|CLOCAL|HUPCL|CSTOPB)
 493 #define MBG_IFLAG               (IGNBRK|IGNPAR|ISTRIP)
 494 #define MBG_OFLAG               0
 495 #define MBG_LFLAG               0
 496 #define MBG_FLAGS               PARSE_F_PPSONSECOND
 497
 498 /*
 499  * Meinberg DCF77 receivers
 500  */
 501 #define DCFUA31_ROOTDELAY       0.0  /* 0 */
 502 #define DCFUA31_BASEDELAY       0.010  /* 10.7421875ms: 10 ms (+/- 3 ms) */
 503 #define DCFUA31_DESCRIPTION     "Meinberg DCF77 C51 or compatible"
 504 #define DCFUA31_MAXUNSYNC       60*30       /* only trust clock for 1/2 hour */
 505 #define DCFUA31_SPEED           MBG_SPEED
 506 #define DCFUA31_CFLAG           MBG_CFLAG
 507 #define DCFUA31_IFLAG           MBG_IFLAG
 508 #define DCFUA31_OFLAG           MBG_OFLAG
 509 #define DCFUA31_LFLAG           MBG_LFLAG
 510 #define DCFUA31_SAMPLES         5
 511 #define DCFUA31_KEEP            3
 512 #define DCFUA31_FORMAT          "Meinberg Standard"
 513
 514 /*
 515  * Meinberg DCF PZF535/TCXO (FM/PZF) receiver
 516  */
 517 #define DCFPZF535_ROOTDELAY     0.0
 518 #define DCFPZF535_BASEDELAY     0.001968  /* 1.968ms +- 104us (oscilloscope) - relative to start (end of STX) */
 519 #define DCFPZF535_DESCRIPTION   "Meinberg DCF PZF 535/509 / TCXO"
 520 #define DCFPZF535_MAXUNSYNC     60*60*12           /* only trust clock for 12 hours
 521                                                     * @ 5e-8df/f we have accumulated
 522                                                     * at most 2.16 ms (thus we move to
 523                                                     * NTP synchronisation */
 524 #define DCFPZF535_SPEED         MBG_SPEED
 525 #define DCFPZF535_CFLAG         MBG_CFLAG
 526 #define DCFPZF535_IFLAG         MBG_IFLAG
 527 #define DCFPZF535_OFLAG         MBG_OFLAG
 528 #define DCFPZF535_LFLAG         MBG_LFLAG
 529 #define DCFPZF535_SAMPLES              5
 530 #define DCFPZF535_KEEP                 3
 531 #define DCFPZF535_FORMAT        "Meinberg Standard"
 532
 533 /*
 534  * Meinberg DCF PZF535/OCXO receiver
 535  */
 536 #define DCFPZF535OCXO_ROOTDELAY 0.0
 537 #define DCFPZF535OCXO_BASEDELAY 0.001968 /* 1.968ms +- 104us (oscilloscope) - relative to start (end of STX) */
 538 #define DCFPZF535OCXO_DESCRIPTION "Meinberg DCF PZF 535/509 / OCXO"
 539 #define DCFPZF535OCXO_MAXUNSYNC     60*60*96       /* only trust clock for 4 days
 540                                                     * @ 5e-9df/f we have accumulated
 541                                                     * at most an error of 1.73 ms
 542                                                     * (thus we move to NTP synchronisation) */
 543 #define DCFPZF535OCXO_SPEED         MBG_SPEED
 544 #define DCFPZF535OCXO_CFLAG         MBG_CFLAG
 545 #define DCFPZF535OCXO_IFLAG         MBG_IFLAG
 546 #define DCFPZF535OCXO_OFLAG         MBG_OFLAG
 547 #define DCFPZF535OCXO_LFLAG         MBG_LFLAG
 548 #define DCFPZF535OCXO_SAMPLES              5
 549 #define DCFPZF535OCXO_KEEP                 3
 550 #define DCFPZF535OCXO_FORMAT        "Meinberg Standard"
 551
 552 /*
 553  * Meinberg GPS receivers
 554  */
 555 static  void    gps16x_message   (struct parseunit *, parsetime_t *);
 556 static  int     gps16x_poll_init (struct parseunit *);
 557
 558 #define GPS16X_ROOTDELAY        0.0         /* nothing here */
 559 #define GPS16X_BASEDELAY        0.001968         /* XXX to be fixed ! 1.968ms +- 104us (oscilloscope) - relative to start (end of STX) */
 560 #define GPS16X_DESCRIPTION      "Meinberg GPS receiver"
 561 #define GPS16X_MAXUNSYNC        60*60*96       /* only trust clock for 4 days
 562                                                 * @ 5e-9df/f we have accumulated
 563                                                 * at most an error of 1.73 ms
 564                                                 * (thus we move to NTP synchronisation) */
 565 #define GPS16X_SPEED            B19200
 566 #define GPS16X_CFLAG            (CS8|CREAD|CLOCAL|HUPCL)
 567 #define GPS16X_IFLAG            (IGNBRK|IGNPAR)
 568 #define GPS16X_OFLAG            MBG_OFLAG
 569 #define GPS16X_LFLAG            MBG_LFLAG
 570 #define GPS16X_POLLRATE 6
 571 #define GPS16X_POLLCMD  ""
 572 #define GPS16X_CMDSIZE  0
 573
 574 static poll_info_t gps16x_pollinfo = { GPS16X_POLLRATE, GPS16X_POLLCMD, GPS16X_CMDSIZE };
 575
 576 #define GPS16X_INIT             gps16x_poll_init
 577 #define GPS16X_POLL             0
 578 #define GPS16X_END              0
 579 #define GPS16X_DATA             ((void *)(&gps16x_pollinfo))
 580 #define GPS16X_MESSAGE          gps16x_message
 581 #define GPS16X_ID               GPS_ID
 582 #define GPS16X_FORMAT           "Meinberg GPS Extended"
 583 #define GPS16X_SAMPLES          5
 584 #define GPS16X_KEEP             3
 585
 586 /*
 587  * ELV DCF7000 Wallclock-Receiver/Switching Clock (Kit)
 588  *
 589  * This is really not the hottest clock - but before you have nothing ...
 590  */
 591 #define DCF7000_ROOTDELAY       0.0 /* 0 */
 592 #define DCF7000_BASEDELAY       0.405 /* slow blow */
 593 #define DCF7000_DESCRIPTION     "ELV DCF7000"
 594 #define DCF7000_MAXUNSYNC       (60*5) /* sorry - but it just was not build as a clock */
 595 #define DCF7000_SPEED           (B9600)
 596 #define DCF7000_CFLAG           (CS8|CREAD|PARENB|PARODD|CLOCAL|HUPCL)
 597 #define DCF7000_IFLAG           (IGNBRK)
 598 #define DCF7000_OFLAG           0
 599 #define DCF7000_LFLAG           0
 600 #define DCF7000_SAMPLES         5
 601 #define DCF7000_KEEP            3
 602 #define DCF7000_FORMAT          "ELV DCF7000"
 603
 604 /*
 605  * Schmid DCF Receiver Kit
 606  *
 607  * When the WSDCF clock is operating optimally we want the primary clock
 608  * distance to come out at 300 ms.  Thus, peer.distance in the WSDCF peer
 609  * structure is set to 290 ms and we compute delays which are at least
 610  * 10 ms long.  The following are 290 ms and 10 ms expressed in u_fp format
 611  */
 612 #define WS_POLLRATE     1       /* every second - watch interdependency with poll routine */
 613 #define WS_POLLCMD      "\163"
 614 #define WS_CMDSIZE      1
 615
 616 static poll_info_t wsdcf_pollinfo = { WS_POLLRATE, WS_POLLCMD, WS_CMDSIZE };
 617
 618 #define WSDCF_INIT              poll_init
 619 #define WSDCF_POLL              poll_dpoll
 620 #define WSDCF_END               0
 621 #define WSDCF_DATA              ((void *)(&wsdcf_pollinfo))
 622 #define WSDCF_ROOTDELAY         0.0     /* 0 */
 623 #define WSDCF_BASEDELAY         0.010   /*  ~  10ms */
 624 #define WSDCF_DESCRIPTION       "WS/DCF Receiver"
 625 #define WSDCF_FORMAT            "Schmid"
 626 #define WSDCF_MAXUNSYNC         (60*60) /* assume this beast hold at 1 h better than 2 ms XXX-must verify */
 627 #define WSDCF_SPEED             (B1200)
 628 #define WSDCF_CFLAG             (CS8|CREAD|CLOCAL)
 629 #define WSDCF_IFLAG             0
 630 #define WSDCF_OFLAG             0
 631 #define WSDCF_LFLAG             0
 632 #define WSDCF_SAMPLES           5
 633 #define WSDCF_KEEP              3
 634
 635 /*
 636  * RAW DCF77 - input of DCF marks via RS232 - many variants
 637  */
 638 #define RAWDCF_FLAGS            0
 639 #define RAWDCF_ROOTDELAY        0.0 /* 0 */
 640 #define RAWDCF_BASEDELAY        0.258
 641 #define RAWDCF_FORMAT           "RAW DCF77 Timecode"
 642 #define RAWDCF_MAXUNSYNC        (0) /* sorry - its a true receiver - no signal - no time */
 643 #define RAWDCF_SPEED            (B50)
 644 #ifdef NO_PARENB_IGNPAR /* Was: defined(SYS_IRIX4) || defined(SYS_IRIX5) */
 645 /* somehow doesn't grok PARENB & IGNPAR (mj) */
 646 # define RAWDCF_CFLAG            (CS8|CREAD|CLOCAL)
 647 #else
 648 # define RAWDCF_CFLAG            (CS8|CREAD|CLOCAL|PARENB)
 649 #endif
 650 #ifdef RAWDCF_NO_IGNPAR /* Was: defined(SYS_LINUX) && defined(CLOCK_RAWDCF) */
 651 # define RAWDCF_IFLAG           0
 652 #else
 653 # define RAWDCF_IFLAG           (IGNPAR)
 654 #endif
 655 #define RAWDCF_OFLAG            0
 656 #define RAWDCF_LFLAG            0
 657 #define RAWDCF_SAMPLES          20
 658 #define RAWDCF_KEEP             12
 659 #define RAWDCF_INIT             0
 660
 661 /*
 662  * RAW DCF variants
 663  */
 664 /*
 665  * Conrad receiver
 666  *
 667  * simplest (cheapest) DCF clock - e. g. DCF77 receiver by Conrad
 668  * (~40DM - roughly $30 ) followed by a level converter for RS232
 669  */
 670 #define CONRAD_BASEDELAY        0.292 /* Conrad receiver @ 50 Baud on a Sun */
 671 #define CONRAD_DESCRIPTION      "RAW DCF77 CODE (Conrad DCF77 receiver module)"
 672
 673 /* Gude Analog- und Digitalsystem GmbH 'Expert mouseCLOCK USB v2.0' */
 674 #define GUDE_EMC_USB_V20_SPEED            (B4800)
 675 #define GUDE_EMC_USB_V20_BASEDELAY        0.425 /* USB serial<->USB converter FTDI232R */
 676 #define GUDE_EMC_USB_V20_DESCRIPTION      "RAW DCF77 CODE (Expert mouseCLOCK USB v2.0)"
 677
 678 /*
 679  * TimeBrick receiver
 680  */
 681 #define TIMEBRICK_BASEDELAY     0.210 /* TimeBrick @ 50 Baud on a Sun */
 682 #define TIMEBRICK_DESCRIPTION   "RAW DCF77 CODE (TimeBrick)"
 683
 684 /*
 685  * IGEL:clock receiver
 686  */
 687 #define IGELCLOCK_BASEDELAY     0.258 /* IGEL:clock receiver */
 688 #define IGELCLOCK_DESCRIPTION   "RAW DCF77 CODE (IGEL:clock)"
 689 #define IGELCLOCK_SPEED         (B1200)
 690 #define IGELCLOCK_CFLAG         (CS8|CREAD|HUPCL|CLOCAL)
 691
 692 /*
 693  * RAWDCF receivers that need to be powered from DTR
 694  * (like Expert mouse clock)
 695  */
 696 static  int     rawdcf_init_1   (struct parseunit *);
 697 #define RAWDCFDTRSET_DESCRIPTION        "RAW DCF77 CODE (DTR SET/RTS CLR)"
 698 #define RAWDCFDTRSET75_DESCRIPTION      "RAW DCF77 CODE (DTR SET/RTS CLR @ 75 baud)"
 699 #define RAWDCFDTRSET_INIT               rawdcf_init_1
 700
 701 /*
 702  * RAWDCF receivers that need to be powered from
 703  * DTR CLR and RTS SET
 704  */
 705 static  int     rawdcf_init_2   (struct parseunit *);
 706 #define RAWDCFDTRCLRRTSSET_DESCRIPTION  "RAW DCF77 CODE (DTR CLR/RTS SET)"
 707 #define RAWDCFDTRCLRRTSSET75_DESCRIPTION "RAW DCF77 CODE (DTR CLR/RTS SET @ 75 baud)"
 708 #define RAWDCFDTRCLRRTSSET_INIT rawdcf_init_2
 709
 710 /*
 711  * Trimble GPS receivers (TAIP and TSIP protocols)
 712  */
 713 #ifndef TRIM_POLLRATE
 714 #define TRIM_POLLRATE   0       /* only true direct polling */
 715 #endif
 716
 717 #define TRIM_TAIPPOLLCMD        ">SRM;FR_FLAG=F;EC_FLAG=F<>QTM<"
 718 #define TRIM_TAIPCMDSIZE        (sizeof(TRIM_TAIPPOLLCMD)-1)
 719
 720 static poll_info_t trimbletaip_pollinfo = { TRIM_POLLRATE, TRIM_TAIPPOLLCMD, TRIM_TAIPCMDSIZE };
 721 static  int     trimbletaip_init        (struct parseunit *);
 722 static  void    trimbletaip_event       (struct parseunit *, int);
 723
 724 /* query time & UTC correction data */
 725 static char tsipquery[] = { DLE, 0x21, DLE, ETX, DLE, 0x2F, DLE, ETX };
 726
 727 static poll_info_t trimbletsip_pollinfo = { TRIM_POLLRATE, tsipquery, sizeof(tsipquery) };
 728 static  int     trimbletsip_init        (struct parseunit *);
 729 static  void    trimbletsip_end         (struct parseunit *);
 730 static  void    trimbletsip_message     (struct parseunit *, parsetime_t *);
 731 static  void    trimbletsip_event       (struct parseunit *, int);
 732
 733 #define TRIMBLETSIP_IDLE_TIME       (300) /* 5 minutes silence at most */
 734 #define TRIMBLE_RESET_HOLDOFF       TRIMBLETSIP_IDLE_TIME
 735
 736 #define TRIMBLETAIP_SPEED           (B4800)
 737 #define TRIMBLETAIP_CFLAG           (CS8|CREAD|CLOCAL)
 738 #define TRIMBLETAIP_IFLAG           (BRKINT|IGNPAR|ISTRIP|ICRNL|IXON)
 739 #define TRIMBLETAIP_OFLAG           (OPOST|ONLCR)
 740 #define TRIMBLETAIP_LFLAG           (0)
 741
 742 #define TRIMBLETSIP_SPEED           (B9600)
 743 #define TRIMBLETSIP_CFLAG           (CS8|CLOCAL|CREAD|PARENB|PARODD)
 744 #define TRIMBLETSIP_IFLAG           (IGNBRK)
 745 #define TRIMBLETSIP_OFLAG           (0)
 746 #define TRIMBLETSIP_LFLAG           (ICANON)
 747
 748 #define TRIMBLETSIP_SAMPLES         5
 749 #define TRIMBLETSIP_KEEP            3
 750 #define TRIMBLETAIP_SAMPLES         5
 751 #define TRIMBLETAIP_KEEP            3
 752
 753 #define TRIMBLETAIP_FLAGS           (PARSE_F_PPSONSECOND)
 754 #define TRIMBLETSIP_FLAGS           (TRIMBLETAIP_FLAGS)
 755
 756 #define TRIMBLETAIP_POLL            poll_dpoll
 757 #define TRIMBLETSIP_POLL            poll_dpoll
 758
 759 #define TRIMBLETAIP_INIT            trimbletaip_init
 760 #define TRIMBLETSIP_INIT            trimbletsip_init
 761
 762 #define TRIMBLETAIP_EVENT           trimbletaip_event
 763
 764 #define TRIMBLETSIP_EVENT           trimbletsip_event
 765 #define TRIMBLETSIP_MESSAGE         trimbletsip_message
 766
 767 #define TRIMBLETAIP_END             0
 768 #define TRIMBLETSIP_END             trimbletsip_end
 769
 770 #define TRIMBLETAIP_DATA            ((void *)(&trimbletaip_pollinfo))
 771 #define TRIMBLETSIP_DATA            ((void *)(&trimbletsip_pollinfo))
 772
 773 #define TRIMBLETAIP_ID              GPS_ID
 774 #define TRIMBLETSIP_ID              GPS_ID
 775
 776 #define TRIMBLETAIP_FORMAT          "Trimble TAIP"
 777 #define TRIMBLETSIP_FORMAT          "Trimble TSIP"
 778
 779 #define TRIMBLETAIP_ROOTDELAY        0x0
 780 #define TRIMBLETSIP_ROOTDELAY        0x0
 781
 782 #define TRIMBLETAIP_BASEDELAY        0.0
 783 #define TRIMBLETSIP_BASEDELAY        0.020      /* GPS time message latency */
 784
 785 #define TRIMBLETAIP_DESCRIPTION      "Trimble GPS (TAIP) receiver"
 786 #define TRIMBLETSIP_DESCRIPTION      "Trimble GPS (TSIP) receiver"
 787
 788 #define TRIMBLETAIP_MAXUNSYNC        0
 789 #define TRIMBLETSIP_MAXUNSYNC        0
 790
 791 #define TRIMBLETAIP_EOL             '<'
 792
 793 /*
 794  * RadioCode Clocks RCC 800 receiver
 795  */
 796 #define RCC_POLLRATE   0       /* only true direct polling */
 797 #define RCC_POLLCMD    "\r"
 798 #define RCC_CMDSIZE    1
 799
 800 static poll_info_t rcc8000_pollinfo = { RCC_POLLRATE, RCC_POLLCMD, RCC_CMDSIZE };
 801 #define RCC8000_FLAGS           0
 802 #define RCC8000_POLL            poll_dpoll
 803 #define RCC8000_INIT            poll_init
 804 #define RCC8000_END             0
 805 #define RCC8000_DATA            ((void *)(&rcc8000_pollinfo))
 806 #define RCC8000_ROOTDELAY       0.0
 807 #define RCC8000_BASEDELAY       0.0
 808 #define RCC8000_ID              "MSF"
 809 #define RCC8000_DESCRIPTION     "RCC 8000 MSF Receiver"
 810 #define RCC8000_FORMAT          "Radiocode RCC8000"
 811 #define RCC8000_MAXUNSYNC       (60*60) /* should be ok for an hour */
 812 #define RCC8000_SPEED           (B2400)
 813 #define RCC8000_CFLAG           (CS8|CREAD|CLOCAL)
 814 #define RCC8000_IFLAG           (IGNBRK|IGNPAR)
 815 #define RCC8000_OFLAG           0
 816 #define RCC8000_LFLAG           0
 817 #define RCC8000_SAMPLES         5
 818 #define RCC8000_KEEP            3
 819
 820 /*
 821  * Hopf Radio clock 6021 Format
 822  *
 823  */
 824 #define HOPF6021_ROOTDELAY      0.0
 825 #define HOPF6021_BASEDELAY      0.0
 826 #define HOPF6021_DESCRIPTION    "HOPF 6021"
 827 #define HOPF6021_FORMAT         "hopf Funkuhr 6021"
 828 #define HOPF6021_MAXUNSYNC      (60*60)  /* should be ok for an hour */
 829 #define HOPF6021_SPEED         (B9600)
 830 #define HOPF6021_CFLAG          (CS8|CREAD|CLOCAL)
 831 #define HOPF6021_IFLAG          (IGNBRK|ISTRIP)
 832 #define HOPF6021_OFLAG          0
 833 #define HOPF6021_LFLAG          0
 834 #define HOPF6021_FLAGS          0
 835 #define HOPF6021_SAMPLES        5
 836 #define HOPF6021_KEEP           3
 837
 838 /*
 839  * Diem's Computime Radio Clock Receiver
 840  */
 841 #define COMPUTIME_FLAGS       0
 842 #define COMPUTIME_ROOTDELAY   0.0
 843 #define COMPUTIME_BASEDELAY   0.0
 844 #define COMPUTIME_ID          DCF_ID
 845 #define COMPUTIME_DESCRIPTION "Diem's Computime receiver"
 846 #define COMPUTIME_FORMAT      "Diem's Computime Radio Clock"
 847 #define COMPUTIME_TYPE        DCF_TYPE
 848 #define COMPUTIME_MAXUNSYNC   (60*60)       /* only trust clock for 1 hour */
 849 #define COMPUTIME_SPEED       (B9600)
 850 #define COMPUTIME_CFLAG       (CSTOPB|CS7|CREAD|CLOCAL)
 851 #define COMPUTIME_IFLAG       (IGNBRK|IGNPAR|ISTRIP)
 852 #define COMPUTIME_OFLAG       0
 853 #define COMPUTIME_LFLAG       0
 854 #define COMPUTIME_SAMPLES     5
 855 #define COMPUTIME_KEEP        3
 856
 857 /*
 858  * Varitext Radio Clock Receiver
 859  */
 860 #define VARITEXT_FLAGS       0
 861 #define VARITEXT_ROOTDELAY   0.0
 862 #define VARITEXT_BASEDELAY   0.0
 863 #define VARITEXT_ID          "MSF"
 864 #define VARITEXT_DESCRIPTION "Varitext receiver"
 865 #define VARITEXT_FORMAT      "Varitext Radio Clock"
 866 #define VARITEXT_TYPE        DCF_TYPE
 867 #define VARITEXT_MAXUNSYNC   (60*60)       /* only trust clock for 1 hour */
 868 #define VARITEXT_SPEED       (B9600)
 869 #define VARITEXT_CFLAG       (CS7|CREAD|CLOCAL|PARENB|PARODD)
 870 #define VARITEXT_IFLAG       (IGNPAR|IGNBRK|INPCK) /*|ISTRIP)*/
 871 #define VARITEXT_OFLAG       0
 872 #define VARITEXT_LFLAG       0
 873 #define VARITEXT_SAMPLES     32
 874 #define VARITEXT_KEEP        20
 875
 876 /*
 877  * SEL240x Satellite Sychronized Clock
 878  */
 879 #define SEL240X_POLLRATE        0 /* only true direct polling */
 880 #define SEL240X_POLLCMD         "BUB8"
 881 #define SEL240X_CMDSIZE         4
 882
 883 static poll_info_t sel240x_pollinfo = { SEL240X_POLLRATE,
 884                                         SEL240X_POLLCMD,
 885                                         SEL240X_CMDSIZE };
 886 #define SEL240X_FLAGS           (PARSE_F_PPSONSECOND)
 887 #define SEL240X_POLL            poll_dpoll
 888 #define SEL240X_INIT            poll_init
 889 #define SEL240X_END             0
 890 #define SEL240X_DATA            ((void *)(&sel240x_pollinfo))
 891 #define SEL240X_ROOTDELAY       0.0
 892 #define SEL240X_BASEDELAY       0.0
 893 #define SEL240X_ID              GPS_ID
 894 #define SEL240X_DESCRIPTION     "SEL240x Satellite Synchronized Clock"
 895 #define SEL240X_FORMAT          "SEL B8"
 896 #define SEL240X_MAXUNSYNC       60*60*12 /* only trust clock for 12 hours */
 897 #define SEL240X_SPEED           (B9600)
 898 #define SEL240X_CFLAG           (CS8|CREAD|CLOCAL)
 899 #define SEL240X_IFLAG           (IGNBRK|IGNPAR)
 900 #define SEL240X_OFLAG           (0)
 901 #define SEL240X_LFLAG           (0)
 902 #define SEL240X_SAMPLES         5
 903 #define SEL240X_KEEP            3
 904
 905 static struct parse_clockinfo
 906 {
 907         u_long  cl_flags;               /* operation flags (PPS interpretation, trust handling) */
 908   void  (*cl_poll)    (struct parseunit *);                     /* active poll routine */
 909   int   (*cl_init)    (struct parseunit *);                     /* active poll init routine */
 910   void  (*cl_event)   (struct parseunit *, int);                /* special event handling (e.g. reset clock) */
 911   void  (*cl_end)     (struct parseunit *);                     /* active poll end routine */
 912   void  (*cl_message) (struct parseunit *, parsetime_t *);      /* process a lower layer message */
 913         void   *cl_data;                /* local data area for "poll" mechanism */
 914         double    cl_rootdelay;         /* rootdelay */
 915         double    cl_basedelay;         /* current offset by which the RS232
 916                                 time code is delayed from the actual time */
 917         const char *cl_id;              /* ID code */
 918         const char *cl_description;             /* device name */
 919         const char *cl_format;          /* fixed format */
 920         u_char  cl_type;                /* clock type (ntp control) */
 921         u_long  cl_maxunsync;           /* time to trust oscillator after losing synch */
 922         u_long  cl_speed;               /* terminal input & output baudrate */
 923         u_long  cl_cflag;             /* terminal control flags */
 924         u_long  cl_iflag;             /* terminal input flags */
 925         u_long  cl_oflag;             /* terminal output flags */
 926         u_long  cl_lflag;             /* terminal local flags */
 927         u_long  cl_samples;           /* samples for median filter */
 928         u_long  cl_keep;              /* samples for median filter to keep */
 929 } parse_clockinfo[] =
 930 {
 931         {                               /* mode 0 */
 932                 MBG_FLAGS,
 933                 NO_POLL,
 934                 NO_INIT,
 935                 NO_EVENT,
 936                 NO_END,
 937                 NO_MESSAGE,
 938                 NO_LCLDATA,
 939                 DCFPZF535_ROOTDELAY,
 940                 DCFPZF535_BASEDELAY,
 941                 DCF_P_ID,
 942                 DCFPZF535_DESCRIPTION,
 943                 DCFPZF535_FORMAT,
 944                 DCF_TYPE,
 945                 DCFPZF535_MAXUNSYNC,
 946                 DCFPZF535_SPEED,
 947                 DCFPZF535_CFLAG,
 948                 DCFPZF535_IFLAG,
 949                 DCFPZF535_OFLAG,
 950                 DCFPZF535_LFLAG,
 951                 DCFPZF535_SAMPLES,
 952                 DCFPZF535_KEEP
 953         },
 954         {                               /* mode 1 */
 955                 MBG_FLAGS,
 956                 NO_POLL,
 957                 NO_INIT,
 958                 NO_EVENT,
 959                 NO_END,
 960                 NO_MESSAGE,
 961                 NO_LCLDATA,
 962                 DCFPZF535OCXO_ROOTDELAY,
 963                 DCFPZF535OCXO_BASEDELAY,
 964                 DCF_P_ID,
 965                 DCFPZF535OCXO_DESCRIPTION,
 966                 DCFPZF535OCXO_FORMAT,
 967                 DCF_TYPE,
 968                 DCFPZF535OCXO_MAXUNSYNC,
 969                 DCFPZF535OCXO_SPEED,
 970                 DCFPZF535OCXO_CFLAG,
 971                 DCFPZF535OCXO_IFLAG,
 972                 DCFPZF535OCXO_OFLAG,
 973                 DCFPZF535OCXO_LFLAG,
 974                 DCFPZF535OCXO_SAMPLES,
 975                 DCFPZF535OCXO_KEEP
 976         },
 977         {                               /* mode 2 */
 978                 MBG_FLAGS,
 979                 NO_POLL,
 980                 NO_INIT,
 981                 NO_EVENT,
 982                 NO_END,
 983                 NO_MESSAGE,
 984                 NO_LCLDATA,
 985                 DCFUA31_ROOTDELAY,
 986                 DCFUA31_BASEDELAY,
 987                 DCF_A_ID,
 988                 DCFUA31_DESCRIPTION,
 989                 DCFUA31_FORMAT,
 990                 DCF_TYPE,
 991                 DCFUA31_MAXUNSYNC,
 992                 DCFUA31_SPEED,
 993                 DCFUA31_CFLAG,
 994                 DCFUA31_IFLAG,
 995                 DCFUA31_OFLAG,
 996                 DCFUA31_LFLAG,
 997                 DCFUA31_SAMPLES,
 998                 DCFUA31_KEEP
 999         },
1000         {                               /* mode 3 */
1001                 MBG_FLAGS,
1002                 NO_POLL,
1003                 NO_INIT,
1004                 NO_EVENT,
1005                 NO_END,
1006                 NO_MESSAGE,
1007                 NO_LCLDATA,
1008                 DCF7000_ROOTDELAY,
1009                 DCF7000_BASEDELAY,
1010                 DCF_A_ID,
1011                 DCF7000_DESCRIPTION,
1012                 DCF7000_FORMAT,
1013                 DCF_TYPE,
1014                 DCF7000_MAXUNSYNC,
1015                 DCF7000_SPEED,
1016                 DCF7000_CFLAG,
1017                 DCF7000_IFLAG,
1018                 DCF7000_OFLAG,
1019                 DCF7000_LFLAG,
1020                 DCF7000_SAMPLES,
1021                 DCF7000_KEEP
1022         },
1023         {                               /* mode 4 */
1024                 NO_CL_FLAGS,
1025                 WSDCF_POLL,
1026                 WSDCF_INIT,
1027                 NO_EVENT,
1028                 WSDCF_END,
1029                 NO_MESSAGE,
1030                 WSDCF_DATA,
1031                 WSDCF_ROOTDELAY,
1032                 WSDCF_BASEDELAY,
1033                 DCF_A_ID,
1034                 WSDCF_DESCRIPTION,
1035                 WSDCF_FORMAT,
1036                 DCF_TYPE,
1037                 WSDCF_MAXUNSYNC,
1038                 WSDCF_SPEED,
1039                 WSDCF_CFLAG,
1040                 WSDCF_IFLAG,
1041                 WSDCF_OFLAG,
1042                 WSDCF_LFLAG,
1043                 WSDCF_SAMPLES,
1044                 WSDCF_KEEP
1045         },
1046         {                               /* mode 5 */
1047                 RAWDCF_FLAGS,
1048                 NO_POLL,
1049                 RAWDCF_INIT,
1050                 NO_EVENT,
1051                 NO_END,
1052                 NO_MESSAGE,
1053                 NO_LCLDATA,
1054                 RAWDCF_ROOTDELAY,
1055                 CONRAD_BASEDELAY,
1056                 DCF_A_ID,
1057                 CONRAD_DESCRIPTION,
1058                 RAWDCF_FORMAT,
1059                 DCF_TYPE,
1060                 RAWDCF_MAXUNSYNC,
1061                 RAWDCF_SPEED,
1062                 RAWDCF_CFLAG,
1063                 RAWDCF_IFLAG,
1064                 RAWDCF_OFLAG,
1065                 RAWDCF_LFLAG,
1066                 RAWDCF_SAMPLES,
1067                 RAWDCF_KEEP
1068         },
1069         {                               /* mode 6 */
1070                 RAWDCF_FLAGS,
1071                 NO_POLL,
1072                 RAWDCF_INIT,
1073                 NO_EVENT,
1074                 NO_END,
1075                 NO_MESSAGE,
1076                 NO_LCLDATA,
1077                 RAWDCF_ROOTDELAY,
1078                 TIMEBRICK_BASEDELAY,
1079                 DCF_A_ID,
1080                 TIMEBRICK_DESCRIPTION,
1081                 RAWDCF_FORMAT,
1082                 DCF_TYPE,
1083                 RAWDCF_MAXUNSYNC,
1084                 RAWDCF_SPEED,
1085                 RAWDCF_CFLAG,
1086                 RAWDCF_IFLAG,
1087                 RAWDCF_OFLAG,
1088                 RAWDCF_LFLAG,
1089                 RAWDCF_SAMPLES,
1090                 RAWDCF_KEEP
1091         },
1092         {                               /* mode 7 */
1093                 MBG_FLAGS,
1094                 GPS16X_POLL,
1095                 GPS16X_INIT,
1096                 NO_EVENT,
1097                 GPS16X_END,
1098                 GPS16X_MESSAGE,
1099                 GPS16X_DATA,
1100                 GPS16X_ROOTDELAY,
1101                 GPS16X_BASEDELAY,
1102                 GPS16X_ID,
1103                 GPS16X_DESCRIPTION,
1104                 GPS16X_FORMAT,
1105                 GPS_TYPE,
1106                 GPS16X_MAXUNSYNC,
1107                 GPS16X_SPEED,
1108                 GPS16X_CFLAG,
1109                 GPS16X_IFLAG,
1110                 GPS16X_OFLAG,
1111                 GPS16X_LFLAG,
1112                 GPS16X_SAMPLES,
1113                 GPS16X_KEEP
1114         },
1115         {                               /* mode 8 */
1116                 RAWDCF_FLAGS,
1117                 NO_POLL,
1118                 NO_INIT,
1119                 NO_EVENT,
1120                 NO_END,
1121                 NO_MESSAGE,
1122                 NO_LCLDATA,
1123                 RAWDCF_ROOTDELAY,
1124                 IGELCLOCK_BASEDELAY,
1125                 DCF_A_ID,
1126                 IGELCLOCK_DESCRIPTION,
1127                 RAWDCF_FORMAT,
1128                 DCF_TYPE,
1129                 RAWDCF_MAXUNSYNC,
1130                 IGELCLOCK_SPEED,
1131                 IGELCLOCK_CFLAG,
1132                 RAWDCF_IFLAG,
1133                 RAWDCF_OFLAG,
1134                 RAWDCF_LFLAG,
1135                 RAWDCF_SAMPLES,
1136                 RAWDCF_KEEP
1137         },
1138         {                               /* mode 9 */
1139                 TRIMBLETAIP_FLAGS,
1140 #if TRIM_POLLRATE               /* DHD940515: Allow user config */
1141                 NO_POLL,
1142 #else
1143                 TRIMBLETAIP_POLL,
1144 #endif
1145                 TRIMBLETAIP_INIT,
1146                 TRIMBLETAIP_EVENT,
1147                 TRIMBLETAIP_END,
1148                 NO_MESSAGE,
1149                 TRIMBLETAIP_DATA,
1150                 TRIMBLETAIP_ROOTDELAY,
1151                 TRIMBLETAIP_BASEDELAY,
1152                 TRIMBLETAIP_ID,
1153                 TRIMBLETAIP_DESCRIPTION,
1154                 TRIMBLETAIP_FORMAT,
1155                 GPS_TYPE,
1156                 TRIMBLETAIP_MAXUNSYNC,
1157                 TRIMBLETAIP_SPEED,
1158                 TRIMBLETAIP_CFLAG,
1159                 TRIMBLETAIP_IFLAG,
1160                 TRIMBLETAIP_OFLAG,
1161                 TRIMBLETAIP_LFLAG,
1162                 TRIMBLETAIP_SAMPLES,
1163                 TRIMBLETAIP_KEEP
1164         },
1165         {                               /* mode 10 */
1166                 TRIMBLETSIP_FLAGS,
1167 #if TRIM_POLLRATE               /* DHD940515: Allow user config */
1168                 NO_POLL,
1169 #else
1170                 TRIMBLETSIP_POLL,
1171 #endif
1172                 TRIMBLETSIP_INIT,
1173                 TRIMBLETSIP_EVENT,
1174                 TRIMBLETSIP_END,
1175                 TRIMBLETSIP_MESSAGE,
1176                 TRIMBLETSIP_DATA,
1177                 TRIMBLETSIP_ROOTDELAY,
1178                 TRIMBLETSIP_BASEDELAY,
1179                 TRIMBLETSIP_ID,
1180                 TRIMBLETSIP_DESCRIPTION,
1181                 TRIMBLETSIP_FORMAT,
1182                 GPS_TYPE,
1183                 TRIMBLETSIP_MAXUNSYNC,
1184                 TRIMBLETSIP_SPEED,
1185                 TRIMBLETSIP_CFLAG,
1186                 TRIMBLETSIP_IFLAG,
1187                 TRIMBLETSIP_OFLAG,
1188                 TRIMBLETSIP_LFLAG,
1189                 TRIMBLETSIP_SAMPLES,
1190                 TRIMBLETSIP_KEEP
1191         },
1192         {                             /* mode 11 */
1193                 NO_CL_FLAGS,
1194                 RCC8000_POLL,
1195                 RCC8000_INIT,
1196                 NO_EVENT,
1197                 RCC8000_END,
1198                 NO_MESSAGE,
1199                 RCC8000_DATA,
1200                 RCC8000_ROOTDELAY,
1201                 RCC8000_BASEDELAY,
1202                 RCC8000_ID,
1203                 RCC8000_DESCRIPTION,
1204                 RCC8000_FORMAT,
1205                 DCF_TYPE,
1206                 RCC8000_MAXUNSYNC,
1207                 RCC8000_SPEED,
1208                 RCC8000_CFLAG,
1209                 RCC8000_IFLAG,
1210                 RCC8000_OFLAG,
1211                 RCC8000_LFLAG,
1212                 RCC8000_SAMPLES,
1213                 RCC8000_KEEP
1214         },
1215         {                             /* mode 12 */
1216                 HOPF6021_FLAGS,
1217                 NO_POLL,
1218                 NO_INIT,
1219                 NO_EVENT,
1220                 NO_END,
1221                 NO_MESSAGE,
1222                 NO_LCLDATA,
1223                 HOPF6021_ROOTDELAY,
1224                 HOPF6021_BASEDELAY,
1225                 DCF_ID,
1226                 HOPF6021_DESCRIPTION,
1227                 HOPF6021_FORMAT,
1228                 DCF_TYPE,
1229                 HOPF6021_MAXUNSYNC,
1230                 HOPF6021_SPEED,
1231                 HOPF6021_CFLAG,
1232                 HOPF6021_IFLAG,
1233                 HOPF6021_OFLAG,
1234                 HOPF6021_LFLAG,
1235                 HOPF6021_SAMPLES,
1236                 HOPF6021_KEEP
1237         },
1238         {                            /* mode 13 */
1239                 COMPUTIME_FLAGS,
1240                 NO_POLL,
1241                 NO_INIT,
1242                 NO_EVENT,
1243                 NO_END,
1244                 NO_MESSAGE,
1245                 NO_LCLDATA,
1246                 COMPUTIME_ROOTDELAY,
1247                 COMPUTIME_BASEDELAY,
1248                 COMPUTIME_ID,
1249                 COMPUTIME_DESCRIPTION,
1250                 COMPUTIME_FORMAT,
1251                 COMPUTIME_TYPE,
1252                 COMPUTIME_MAXUNSYNC,
1253                 COMPUTIME_SPEED,
1254                 COMPUTIME_CFLAG,
1255                 COMPUTIME_IFLAG,
1256                 COMPUTIME_OFLAG,
1257                 COMPUTIME_LFLAG,
1258                 COMPUTIME_SAMPLES,
1259                 COMPUTIME_KEEP
1260         },
1261         {                               /* mode 14 */
1262                 RAWDCF_FLAGS,
1263                 NO_POLL,
1264                 RAWDCFDTRSET_INIT,
1265                 NO_EVENT,
1266                 NO_END,
1267                 NO_MESSAGE,
1268                 NO_LCLDATA,
1269                 RAWDCF_ROOTDELAY,
1270                 RAWDCF_BASEDELAY,
1271                 DCF_A_ID,
1272                 RAWDCFDTRSET_DESCRIPTION,
1273                 RAWDCF_FORMAT,
1274                 DCF_TYPE,
1275                 RAWDCF_MAXUNSYNC,
1276                 RAWDCF_SPEED,
1277                 RAWDCF_CFLAG,
1278                 RAWDCF_IFLAG,
1279                 RAWDCF_OFLAG,
1280                 RAWDCF_LFLAG,
1281                 RAWDCF_SAMPLES,
1282                 RAWDCF_KEEP
1283         },
1284         {                               /* mode 15 */
1285                 0,                              /* operation flags (io modes) */
1286                 NO_POLL,                        /* active poll routine */
1287                 NO_INIT,                        /* active poll init routine */
1288                 NO_EVENT,                       /* special event handling (e.g. reset clock) */
1289                 NO_END,                         /* active poll end routine */
1290                 NO_MESSAGE,                     /* process a lower layer message */
1291                 NO_LCLDATA,                     /* local data area for "poll" mechanism */
1292                 0,                              /* rootdelay */
1293                 11.0 /* bits */ / 9600,         /* current offset by which the RS232
1294                                                 time code is delayed from the actual time */
1295                 DCF_ID,                         /* ID code */
1296                 "WHARTON 400A Series clock",    /* device name */
1297                 "WHARTON 400A Series clock Output Format 1",    /* fixed format */
1298                         /* Must match a format-name in a libparse/clk_xxx.c file */
1299                 DCF_TYPE,                       /* clock type (ntp control) */
1300                 (1*60*60),                      /* time to trust oscillator after losing synch */
1301                 B9600,                          /* terminal input & output baudrate */
1302                 (CS8|CREAD|PARENB|CLOCAL|HUPCL),/* terminal control flags */
1303                 0,                              /* terminal input flags */
1304                 0,                              /* terminal output flags */
1305                 0,                              /* terminal local flags */
1306                 5,                              /* samples for median filter */
1307                 3,                              /* samples for median filter to keep */
1308         },
1309         {                               /* mode 16 - RAWDCF RTS set, DTR clr */
1310                 RAWDCF_FLAGS,
1311                 NO_POLL,
1312                 RAWDCFDTRCLRRTSSET_INIT,
1313                 NO_EVENT,
1314                 NO_END,
1315                 NO_MESSAGE,
1316                 NO_LCLDATA,
1317                 RAWDCF_ROOTDELAY,
1318                 RAWDCF_BASEDELAY,
1319                 DCF_A_ID,
1320                 RAWDCFDTRCLRRTSSET_DESCRIPTION,
1321                 RAWDCF_FORMAT,
1322                 DCF_TYPE,
1323                 RAWDCF_MAXUNSYNC,
1324                 RAWDCF_SPEED,
1325                 RAWDCF_CFLAG,
1326                 RAWDCF_IFLAG,
1327                 RAWDCF_OFLAG,
1328                 RAWDCF_LFLAG,
1329                 RAWDCF_SAMPLES,
1330                 RAWDCF_KEEP
1331         },
1332         {                            /* mode 17 */
1333                 VARITEXT_FLAGS,
1334                 NO_POLL,
1335                 NO_INIT,
1336                 NO_EVENT,
1337                 NO_END,
1338                 NO_MESSAGE,
1339                 NO_LCLDATA,
1340                 VARITEXT_ROOTDELAY,
1341                 VARITEXT_BASEDELAY,
1342                 VARITEXT_ID,
1343                 VARITEXT_DESCRIPTION,
1344                 VARITEXT_FORMAT,
1345                 VARITEXT_TYPE,
1346                 VARITEXT_MAXUNSYNC,
1347                 VARITEXT_SPEED,
1348                 VARITEXT_CFLAG,
1349                 VARITEXT_IFLAG,
1350                 VARITEXT_OFLAG,
1351                 VARITEXT_LFLAG,
1352                 VARITEXT_SAMPLES,
1353                 VARITEXT_KEEP
1354         },
1355         {                               /* mode 18 */
1356                 MBG_FLAGS,
1357                 NO_POLL,
1358                 NO_INIT,
1359                 NO_EVENT,
1360                 GPS16X_END,
1361                 GPS16X_MESSAGE,
1362                 GPS16X_DATA,
1363                 GPS16X_ROOTDELAY,
1364                 GPS16X_BASEDELAY,
1365                 GPS16X_ID,
1366                 GPS16X_DESCRIPTION,
1367                 GPS16X_FORMAT,
1368                 GPS_TYPE,
1369                 GPS16X_MAXUNSYNC,
1370                 GPS16X_SPEED,
1371                 GPS16X_CFLAG,
1372                 GPS16X_IFLAG,
1373                 GPS16X_OFLAG,
1374                 GPS16X_LFLAG,
1375                 GPS16X_SAMPLES,
1376                 GPS16X_KEEP
1377         },
1378         {                               /* mode 19 */
1379                 RAWDCF_FLAGS,
1380                 NO_POLL,
1381                 RAWDCF_INIT,
1382                 NO_EVENT,
1383                 NO_END,
1384                 NO_MESSAGE,
1385                 NO_LCLDATA,
1386                 RAWDCF_ROOTDELAY,
1387                 GUDE_EMC_USB_V20_BASEDELAY,
1388                 DCF_A_ID,
1389                 GUDE_EMC_USB_V20_DESCRIPTION,
1390                 RAWDCF_FORMAT,
1391                 DCF_TYPE,
1392                 RAWDCF_MAXUNSYNC,
1393                 GUDE_EMC_USB_V20_SPEED,
1394                 RAWDCF_CFLAG,
1395                 RAWDCF_IFLAG,
1396                 RAWDCF_OFLAG,
1397                 RAWDCF_LFLAG,
1398                 RAWDCF_SAMPLES,
1399                 RAWDCF_KEEP
1400         },
1401         {                               /* mode 20, like mode 14 but driven by 75 baud */
1402                 RAWDCF_FLAGS,
1403                 NO_POLL,
1404                 RAWDCFDTRSET_INIT,
1405                 NO_EVENT,
1406                 NO_END,
1407                 NO_MESSAGE,
1408                 NO_LCLDATA,
1409                 RAWDCF_ROOTDELAY,
1410                 RAWDCF_BASEDELAY,
1411                 DCF_A_ID,
1412                 RAWDCFDTRSET75_DESCRIPTION,
1413                 RAWDCF_FORMAT,
1414                 DCF_TYPE,
1415                 RAWDCF_MAXUNSYNC,
1416                 B75,
1417                 RAWDCF_CFLAG,
1418                 RAWDCF_IFLAG,
1419                 RAWDCF_OFLAG,
1420                 RAWDCF_LFLAG,
1421                 RAWDCF_SAMPLES,
1422                 RAWDCF_KEEP
1423         },
1424         {                               /* mode 21, like mode 16 but driven by 75 baud
1425                                          - RAWDCF RTS set, DTR clr */
1426                 RAWDCF_FLAGS,
1427                 NO_POLL,
1428                 RAWDCFDTRCLRRTSSET_INIT,
1429                 NO_EVENT,
1430                 NO_END,
1431                 NO_MESSAGE,
1432                 NO_LCLDATA,
1433                 RAWDCF_ROOTDELAY,
1434                 RAWDCF_BASEDELAY,
1435                 DCF_A_ID,
1436                 RAWDCFDTRCLRRTSSET75_DESCRIPTION,
1437                 RAWDCF_FORMAT,
1438                 DCF_TYPE,
1439                 RAWDCF_MAXUNSYNC,
1440                 B75,
1441                 RAWDCF_CFLAG,
1442                 RAWDCF_IFLAG,
1443                 RAWDCF_OFLAG,
1444                 RAWDCF_LFLAG,
1445                 RAWDCF_SAMPLES,
1446                 RAWDCF_KEEP
1447         },
1448         {                               /* mode 22 - like 2 with POWERUP trust */
1449                 MBG_FLAGS | PARSE_F_POWERUPTRUST,
1450                 NO_POLL,
1451                 NO_INIT,
1452                 NO_EVENT,
1453                 NO_END,
1454                 NO_MESSAGE,
1455                 NO_LCLDATA,
1456                 DCFUA31_ROOTDELAY,
1457                 DCFUA31_BASEDELAY,
1458                 DCF_A_ID,
1459                 DCFUA31_DESCRIPTION,
1460                 DCFUA31_FORMAT,
1461                 DCF_TYPE,
1462                 DCFUA31_MAXUNSYNC,
1463                 DCFUA31_SPEED,
1464                 DCFUA31_CFLAG,
1465                 DCFUA31_IFLAG,
1466                 DCFUA31_OFLAG,
1467                 DCFUA31_LFLAG,
1468                 DCFUA31_SAMPLES,
1469                 DCFUA31_KEEP
1470         },
1471         {                               /* mode 23 - like 7 with POWERUP trust */
1472                 MBG_FLAGS | PARSE_F_POWERUPTRUST,
1473                 GPS16X_POLL,
1474                 GPS16X_INIT,
1475                 NO_EVENT,
1476                 GPS16X_END,
1477                 GPS16X_MESSAGE,
1478                 GPS16X_DATA,
1479                 GPS16X_ROOTDELAY,
1480                 GPS16X_BASEDELAY,
1481                 GPS16X_ID,
1482                 GPS16X_DESCRIPTION,
1483                 GPS16X_FORMAT,
1484                 GPS_TYPE,
1485                 GPS16X_MAXUNSYNC,
1486                 GPS16X_SPEED,
1487                 GPS16X_CFLAG,
1488                 GPS16X_IFLAG,
1489                 GPS16X_OFLAG,
1490                 GPS16X_LFLAG,
1491                 GPS16X_SAMPLES,
1492                 GPS16X_KEEP
1493         },
1494         {                               /* mode 24 */
1495                 SEL240X_FLAGS,
1496                 SEL240X_POLL,
1497                 SEL240X_INIT,
1498                 NO_EVENT,
1499                 SEL240X_END,
1500                 NO_MESSAGE,
1501                 SEL240X_DATA,
1502                 SEL240X_ROOTDELAY,
1503                 SEL240X_BASEDELAY,
1504                 SEL240X_ID,
1505                 SEL240X_DESCRIPTION,
1506                 SEL240X_FORMAT,
1507                 GPS_TYPE,
1508                 SEL240X_MAXUNSYNC,
1509                 SEL240X_SPEED,
1510                 SEL240X_CFLAG,
1511                 SEL240X_IFLAG,
1512                 SEL240X_OFLAG,
1513                 SEL240X_LFLAG,
1514                 SEL240X_SAMPLES,
1515                 SEL240X_KEEP
1516         },
1517 };
1518
1519 static int ncltypes = sizeof(parse_clockinfo) / sizeof(struct parse_clockinfo);
1520
1521 #define CLK_REALTYPE(x) ((int)(((x)->ttl) & 0x7F))
1522 #define CLK_TYPE(x)     ((CLK_REALTYPE(x) >= ncltypes) ? ~0 : CLK_REALTYPE(x))
1523 #define CLK_UNIT(x)     ((int)REFCLOCKUNIT(&(x)->srcadr))
1524 #define CLK_PPS(x)      (((x)->ttl) & 0x80)
1525
1526 /*
1527  * Other constant stuff
1528  */
1529 #define PARSEHSREFID    0x7f7f08ff      /* 127.127.8.255 refid for hi strata */
1530
1531 #define PARSESTATISTICS   (60*60)               /* output state statistics every hour */
1532
1533 static int notice = 0;
1534
1535 #define PARSE_STATETIME(parse, i) ((parse->generic->currentstatus == i) ? parse->statetime[i] + current_time - parse->lastchange : parse->statetime[i])
1536
1537 static void parse_event   (struct parseunit *, int);
1538 static void parse_process (struct parseunit *, parsetime_t *);
1539 static void clear_err     (struct parseunit *, u_long);
1540 static int  list_err      (struct parseunit *, u_long);
1541 static char * l_mktime    (u_long);
1542
1543 /**===========================================================================
1544  ** implementation error message regression module
1545  **/
1546 static void
1547 clear_err(
1548         struct parseunit *parse,
1549         u_long            lstate
1550         )
1551 {
1552         if (lstate == ERR_ALL)
1553         {
1554                 size_t i;
1555
1556                 for (i = 0; i < ERR_CNT; i++)
1557                 {
1558                         parse->errors[i].err_stage   = err_tbl[i];
1559                         parse->errors[i].err_cnt     = 0;
1560                         parse->errors[i].err_last    = 0;
1561                         parse->errors[i].err_started = 0;
1562                         parse->errors[i].err_suppressed = 0;
1563                 }
1564         }
1565         else
1566         {
1567                 parse->errors[lstate].err_stage   = err_tbl[lstate];
1568                 parse->errors[lstate].err_cnt     = 0;
1569                 parse->errors[lstate].err_last    = 0;
1570                 parse->errors[lstate].err_started = 0;
1571                 parse->errors[lstate].err_suppressed = 0;
1572         }
1573 }
1574
1575 static int
1576 list_err(
1577         struct parseunit *parse,
1578         u_long            lstate
1579         )
1580 {
1581         int do_it;
1582         struct errorinfo *err = &parse->errors[lstate];
1583
1584         if (err->err_started == 0)
1585         {
1586                 err->err_started = current_time;
1587         }
1588
1589         do_it = (current_time - err->err_last) >= err->err_stage->err_delay;
1590
1591         if (do_it)
1592             err->err_cnt++;
1593
1594         if (err->err_stage->err_count &&
1595             (err->err_cnt >= err->err_stage->err_count))
1596         {
1597                 err->err_stage++;
1598                 err->err_cnt = 0;
1599         }
1600
1601         if (!err->err_cnt && do_it)
1602             msyslog(LOG_INFO, "PARSE receiver #%d: interval for following error message class is at least %s",
1603                     CLK_UNIT(parse->peer), l_mktime(err->err_stage->err_delay));
1604
1605         if (!do_it)
1606             err->err_suppressed++;
1607         else
1608             err->err_last = current_time;
1609
1610         if (do_it && err->err_suppressed)
1611         {
1612                 msyslog(LOG_INFO, "PARSE receiver #%d: %ld message%s suppressed, error condition class persists for %s",
1613                         CLK_UNIT(parse->peer), err->err_suppressed, (err->err_suppressed == 1) ? " was" : "s where",
1614                         l_mktime(current_time - err->err_started));
1615                 err->err_suppressed = 0;
1616         }
1617
1618         return do_it;
1619 }
1620
1621 /*--------------------------------------------------
1622  * mkreadable - make a printable ascii string (without
1623  * embedded quotes so that the ntpq protocol isn't
1624  * fooled
1625  */
1626 #ifndef isprint
1627 #define isprint(_X_) (((_X_) > 0x1F) && ((_X_) < 0x7F))
1628 #endif
1629
1630 static char *
1631 mkreadable(
1632         char  *buffer,
1633         long  blen,
1634         const char  *src,
1635         u_long  srclen,
1636         int hex
1637         )
1638 {
1639         static const char ellipsis[] = "...";
1640         char *b    = buffer;
1641         char *endb = NULL;
1642
1643         if (blen < 4)
1644                 return NULL;            /* don't bother with mini buffers */
1645
1646         endb = buffer + blen - sizeof(ellipsis);
1647
1648         blen--;                 /* account for '\0' */
1649
1650         while (blen && srclen--)
1651         {
1652                 if (!hex &&             /* no binary only */
1653                     (*src != '\\') &&   /* no plain \ */
1654                     (*src != '"') &&    /* no " */
1655                     isprint((unsigned char)*src))       /* only printables */
1656                 {                       /* they are easy... */
1657                         *buffer++ = *src++;
1658                         blen--;
1659                 }
1660                 else
1661                 {
1662                         if (blen < 4)
1663                         {
1664                                 while (blen--)
1665                                 {
1666                                         *buffer++ = '.';
1667                                 }
1668                                 *buffer = '\0';
1669                                 return b;
1670                         }
1671                         else
1672                         {
1673                                 if (*src == '\\')
1674                                 {
1675                                         memcpy(buffer, "\\\\", 2);
1676                                         buffer += 2;
1677                                         blen   -= 2;
1678                                         src++;
1679                                 }
1680                                 else
1681                                 {
1682                                         snprintf(buffer, blen, "\\x%02x", *src++);
1683                                         blen   -= 4;
1684                                         buffer += 4;
1685                                 }
1686                         }
1687                 }
1688                 if (srclen && !blen && endb) /* overflow - set last chars to ... */
1689                         memcpy(endb, ellipsis, sizeof(ellipsis));
1690         }
1691
1692         *buffer = '\0';
1693         return b;
1694 }
1695
1696
1697 /*--------------------------------------------------
1698  * mkascii - make a printable ascii string
1699  * assumes (unless defined better) 7-bit ASCII
1700  */
1701 static char *
1702 mkascii(
1703         char  *buffer,
1704         long  blen,
1705         const char  *src,
1706         u_long  srclen
1707         )
1708 {
1709         return mkreadable(buffer, blen, src, srclen, 0);
1710 }
1711
1712 /**===========================================================================
1713  ** implementation of i/o handling methods
1714  ** (all STREAM, partial STREAM, user level)
1715  **/
1716
1717 /*
1718  * define possible io handling methods
1719  */
1720 #ifdef STREAM
1721 static int  ppsclock_init   (struct parseunit *);
1722 static int  stream_init     (struct parseunit *);
1723 static void stream_end      (struct parseunit *);
1724 static int  stream_enable   (struct parseunit *);
1725 static int  stream_disable  (struct parseunit *);
1726 static int  stream_setcs    (struct parseunit *, parsectl_t *);
1727 static int  stream_getfmt   (struct parseunit *, parsectl_t *);
1728 static int  stream_setfmt   (struct parseunit *, parsectl_t *);
1729 static int  stream_timecode (struct parseunit *, parsectl_t *);
1730 static void stream_receive  (struct recvbuf *);
1731 #endif
1732
1733 static int  local_init     (struct parseunit *);
1734 static void local_end      (struct parseunit *);
1735 static int  local_nop      (struct parseunit *);
1736 static int  local_setcs    (struct parseunit *, parsectl_t *);
1737 static int  local_getfmt   (struct parseunit *, parsectl_t *);
1738 static int  local_setfmt   (struct parseunit *, parsectl_t *);
1739 static int  local_timecode (struct parseunit *, parsectl_t *);
1740 static void local_receive  (struct recvbuf *);
1741 static int  local_input    (struct recvbuf *);
1742
1743 static bind_t io_bindings[] =
1744 {
1745 #ifdef STREAM
1746         {
1747                 "parse STREAM",
1748                 stream_init,
1749                 stream_end,
1750                 stream_setcs,
1751                 stream_disable,
1752                 stream_enable,
1753                 stream_getfmt,
1754                 stream_setfmt,
1755                 stream_timecode,
1756                 stream_receive,
1757                 0,
1758         },
1759         {
1760                 "ppsclock STREAM",
1761                 ppsclock_init,
1762                 local_end,
1763                 local_setcs,
1764                 local_nop,
1765                 local_nop,
1766                 local_getfmt,
1767                 local_setfmt,
1768                 local_timecode,
1769                 local_receive,
1770                 local_input,
1771         },
1772 #endif
1773         {
1774                 "normal",
1775                 local_init,
1776                 local_end,
1777                 local_setcs,
1778                 local_nop,
1779                 local_nop,
1780                 local_getfmt,
1781                 local_setfmt,
1782                 local_timecode,
1783                 local_receive,
1784                 local_input,
1785         },
1786         {
1787                 (char *)0,
1788                 NULL,
1789                 NULL,
1790                 NULL,
1791                 NULL,
1792                 NULL,
1793                 NULL,
1794                 NULL,
1795                 NULL,
1796                 NULL,
1797                 NULL,
1798         }
1799 };
1800
1801 #ifdef STREAM
1802
1803 /*--------------------------------------------------
1804  * ppsclock STREAM init
1805  */
1806 static int
1807 ppsclock_init(
1808         struct parseunit *parse
1809         )
1810 {
1811         static char m1[] = "ppsclocd";
1812         static char m2[] = "ppsclock";
1813
1814         /*
1815          * now push the parse streams module
1816          * it will ensure exclusive access to the device
1817          */
1818         if (ioctl(parse->ppsfd, I_PUSH, (caddr_t)m1) == -1 &&
1819             ioctl(parse->ppsfd, I_PUSH, (caddr_t)m2) == -1)
1820         {
1821                 if (errno != EINVAL)
1822                 {
1823                         msyslog(LOG_ERR, "PARSE receiver #%d: ppsclock_init: ioctl(fd, I_PUSH, \"ppsclock\"): %m",
1824                                 CLK_UNIT(parse->peer));
1825                 }
1826                 return 0;
1827         }
1828         if (!local_init(parse))
1829         {
1830                 (void)ioctl(parse->ppsfd, I_POP, (caddr_t)0);
1831                 return 0;
1832         }
1833
1834         parse->flags |= PARSE_PPSCLOCK;
1835         return 1;
1836 }
1837
1838 /*--------------------------------------------------
1839  * parse STREAM init
1840  */
1841 static int
1842 stream_init(
1843         struct parseunit *parse
1844         )
1845 {
1846         static char m1[] = "parse";
1847         /*
1848          * now push the parse streams module
1849          * to test whether it is there (neat interface 8-( )
1850          */
1851         if (ioctl(parse->generic->io.fd, I_PUSH, (caddr_t)m1) == -1)
1852         {
1853                 if (errno != EINVAL) /* accept non-existence */
1854                 {
1855                         msyslog(LOG_ERR, "PARSE receiver #%d: stream_init: ioctl(fd, I_PUSH, \"parse\"): %m", CLK_UNIT(parse->peer));
1856                 }
1857                 return 0;
1858         }
1859         else
1860         {
1861                 while(ioctl(parse->generic->io.fd, I_POP, (caddr_t)0) == 0)
1862                     /* empty loop */;
1863
1864                 /*
1865                  * now push it a second time after we have removed all
1866                  * module garbage
1867                  */
1868                 if (ioctl(parse->generic->io.fd, I_PUSH, (caddr_t)m1) == -1)
1869                 {
1870                         msyslog(LOG_ERR, "PARSE receiver #%d: stream_init: ioctl(fd, I_PUSH, \"parse\"): %m", CLK_UNIT(parse->peer));
1871                         return 0;
1872                 }
1873                 else
1874                 {
1875                         return 1;
1876                 }
1877         }
1878 }
1879
1880 /*--------------------------------------------------
1881  * parse STREAM end
1882  */
1883 static void
1884 stream_end(
1885         struct parseunit *parse
1886         )
1887 {
1888         while(ioctl(parse->generic->io.fd, I_POP, (caddr_t)0) == 0)
1889             /* empty loop */;
1890 }
1891
1892 /*--------------------------------------------------
1893  * STREAM setcs
1894  */
1895 static int
1896 stream_setcs(
1897         struct parseunit *parse,
1898         parsectl_t  *tcl
1899         )
1900 {
1901         struct strioctl strioc;
1902
1903         strioc.ic_cmd     = PARSEIOC_SETCS;
1904         strioc.ic_timout  = 0;
1905         strioc.ic_dp      = (char *)tcl;
1906         strioc.ic_len     = sizeof (*tcl);
1907
1908         if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1)
1909         {
1910                 msyslog(LOG_ERR, "PARSE receiver #%d: stream_setcs: ioctl(fd, I_STR, PARSEIOC_SETCS): %m", CLK_UNIT(parse->peer));
1911                 return 0;
1912         }
1913         return 1;
1914 }
1915
1916 /*--------------------------------------------------
1917  * STREAM enable
1918  */
1919 static int
1920 stream_enable(
1921         struct parseunit *parse
1922         )
1923 {
1924         struct strioctl strioc;
1925
1926         strioc.ic_cmd     = PARSEIOC_ENABLE;
1927         strioc.ic_timout  = 0;
1928         strioc.ic_dp      = (char *)0;
1929         strioc.ic_len     = 0;
1930
1931         if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1)
1932         {
1933                 msyslog(LOG_ERR, "PARSE receiver #%d: stream_enable: ioctl(fd, I_STR, PARSEIOC_ENABLE): %m", CLK_UNIT(parse->peer));
1934                 return 0;
1935         }
1936         parse->generic->io.clock_recv = stream_receive; /* ok - parse input in kernel */
1937         return 1;
1938 }
1939
1940 /*--------------------------------------------------
1941  * STREAM disable
1942  */
1943 static int
1944 stream_disable(
1945         struct parseunit *parse
1946         )
1947 {
1948         struct strioctl strioc;
1949
1950         strioc.ic_cmd     = PARSEIOC_DISABLE;
1951         strioc.ic_timout  = 0;
1952         strioc.ic_dp      = (char *)0;
1953         strioc.ic_len     = 0;
1954
1955         if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1)
1956         {
1957                 msyslog(LOG_ERR, "PARSE receiver #%d: stream_disable: ioctl(fd, I_STR, PARSEIOC_DISABLE): %m", CLK_UNIT(parse->peer));
1958                 return 0;
1959         }
1960         parse->generic->io.clock_recv = local_receive; /* ok - parse input in daemon */
1961         return 1;
1962 }
1963
1964 /*--------------------------------------------------
1965  * STREAM getfmt
1966  */
1967 static int
1968 stream_getfmt(
1969         struct parseunit *parse,
1970         parsectl_t  *tcl
1971         )
1972 {
1973         struct strioctl strioc;
1974
1975         strioc.ic_cmd     = PARSEIOC_GETFMT;
1976         strioc.ic_timout  = 0;
1977         strioc.ic_dp      = (char *)tcl;
1978         strioc.ic_len     = sizeof (*tcl);
1979         if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1)
1980         {
1981                 msyslog(LOG_ERR, "PARSE receiver #%d: ioctl(fd, I_STR, PARSEIOC_GETFMT): %m", CLK_UNIT(parse->peer));
1982                 return 0;
1983         }
1984         return 1;
1985 }
1986
1987 /*--------------------------------------------------
1988  * STREAM setfmt
1989  */
1990 static int
1991 stream_setfmt(
1992         struct parseunit *parse,
1993         parsectl_t  *tcl
1994         )
1995 {
1996         struct strioctl strioc;
1997
1998         strioc.ic_cmd     = PARSEIOC_SETFMT;
1999         strioc.ic_timout  = 0;
2000         strioc.ic_dp      = (char *)tcl;
2001         strioc.ic_len     = sizeof (*tcl);
2002
2003         if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1)
2004         {
2005                 msyslog(LOG_ERR, "PARSE receiver #%d: stream_setfmt: ioctl(fd, I_STR, PARSEIOC_SETFMT): %m", CLK_UNIT(parse->peer));
2006                 return 0;
2007         }
2008         return 1;
2009 }
2010
2011
2012 /*--------------------------------------------------
2013  * STREAM timecode
2014  */
2015 static int
2016 stream_timecode(
2017         struct parseunit *parse,
2018         parsectl_t  *tcl
2019         )
2020 {
2021         struct strioctl strioc;
2022
2023         strioc.ic_cmd     = PARSEIOC_TIMECODE;
2024         strioc.ic_timout  = 0;
2025         strioc.ic_dp      = (char *)tcl;
2026         strioc.ic_len     = sizeof (*tcl);
2027
2028         if (ioctl(parse->generic->io.fd, I_STR, (caddr_t)&strioc) == -1)
2029         {
2030                 ERR(ERR_INTERNAL)
2031                         msyslog(LOG_ERR, "PARSE receiver #%d: stream_timecode: ioctl(fd, I_STR, PARSEIOC_TIMECODE): %m", CLK_UNIT(parse->peer));
2032                 return 0;
2033         }
2034         clear_err(parse, ERR_INTERNAL);
2035         return 1;
2036 }
2037
2038 /*--------------------------------------------------
2039  * STREAM receive
2040  */
2041 static void
2042 stream_receive(
2043         struct recvbuf *rbufp
2044         )
2045 {
2046         struct parseunit * parse;
2047         parsetime_t parsetime;
2048
2049         parse = (struct parseunit *)rbufp->recv_peer->procptr->unitptr;
2050         if (!parse->peer)
2051             return;
2052
2053         if (rbufp->recv_length != sizeof(parsetime_t))
2054         {
2055                 ERR(ERR_BADIO)
2056                         msyslog(LOG_ERR,"PARSE receiver #%d: stream_receive: bad size (got %d expected %d)",
2057                                 CLK_UNIT(parse->peer), rbufp->recv_length, (int)sizeof(parsetime_t));
2058                 parse_event(parse, CEVNT_BADREPLY);
2059                 return;
2060         }
2061         clear_err(parse, ERR_BADIO);
2062
2063         memmove((caddr_t)&parsetime,
2064                 (caddr_t)rbufp->recv_buffer,
2065                 sizeof(parsetime_t));
2066
2067 #ifdef DEBUG
2068         if (debug > 3)
2069           {
2070             printf("PARSE receiver #%d: status %06x, state %08x, time %lx.%08lx, stime %lx.%08lx, ptime %lx.%08lx\n",
2071                    CLK_UNIT(parse->peer),
2072                    (unsigned int)parsetime.parse_status,
2073                    (unsigned int)parsetime.parse_state,
2074                    (unsigned long)parsetime.parse_time.tv.tv_sec,
2075                    (unsigned long)parsetime.parse_time.tv.tv_usec,
2076                    (unsigned long)parsetime.parse_stime.tv.tv_sec,
2077                    (unsigned long)parsetime.parse_stime.tv.tv_usec,
2078                    (unsigned long)parsetime.parse_ptime.tv.tv_sec,
2079                    (unsigned long)parsetime.parse_ptime.tv.tv_usec);
2080           }
2081 #endif
2082
2083         /*
2084          * switch time stamp world - be sure to normalize small usec field
2085          * errors.
2086          */
2087
2088         parsetime.parse_stime.fp = tval_stamp_to_lfp(parsetime.parse_stime.tv);
2089
2090         if (PARSE_TIMECODE(parsetime.parse_state))
2091         {
2092                 parsetime.parse_time.fp = tval_stamp_to_lfp(parsetime.parse_time.tv);
2093         }
2094
2095         if (PARSE_PPS(parsetime.parse_state))
2096         {
2097                 parsetime.parse_ptime.fp = tval_stamp_to_lfp(parsetime.parse_ptime.tv);
2098         }
2099
2100         parse_process(parse, &parsetime);
2101 }
2102 #endif
2103
2104 /*--------------------------------------------------
2105  * local init
2106  */
2107 static int
2108 local_init(
2109         struct parseunit *parse
2110         )
2111 {
2112         return parse_ioinit(&parse->parseio);
2113 }
2114
2115 /*--------------------------------------------------
2116  * local end
2117  */
2118 static void
2119 local_end(
2120         struct parseunit *parse
2121         )
2122 {
2123         parse_ioend(&parse->parseio);
2124 }
2125
2126
2127 /*--------------------------------------------------
2128  * local nop
2129  */
2130 static int
2131 local_nop(
2132         struct parseunit *parse
2133         )
2134 {
2135         return 1;
2136 }
2137
2138 /*--------------------------------------------------
2139  * local setcs
2140  */
2141 static int
2142 local_setcs(
2143         struct parseunit *parse,
2144         parsectl_t  *tcl
2145         )
2146 {
2147         return parse_setcs(tcl, &parse->parseio);
2148 }
2149
2150 /*--------------------------------------------------
2151  * local getfmt
2152  */
2153 static int
2154 local_getfmt(
2155         struct parseunit *parse,
2156         parsectl_t  *tcl
2157         )
2158 {
2159         return parse_getfmt(tcl, &parse->parseio);
2160 }
2161
2162 /*--------------------------------------------------
2163  * local setfmt
2164  */
2165 static int
2166 local_setfmt(
2167         struct parseunit *parse,
2168         parsectl_t  *tcl
2169         )
2170 {
2171         return parse_setfmt(tcl, &parse->parseio);
2172 }
2173
2174 /*--------------------------------------------------
2175  * local timecode
2176  */
2177 static int
2178 local_timecode(
2179         struct parseunit *parse,
2180         parsectl_t  *tcl
2181         )
2182 {
2183         return parse_timecode(tcl, &parse->parseio);
2184 }
2185
2186
2187 /*--------------------------------------------------
2188  * local input
2189  */
2190 static int
2191 local_input(
2192         struct recvbuf *rbufp
2193         )
2194 {
2195         struct parseunit * parse;
2196
2197         int count;
2198         unsigned char *s;
2199         timestamp_t ts;
2200
2201         parse = (struct parseunit *)rbufp->recv_peer->procptr->unitptr;
2202         if (!parse->peer)
2203                 return 0;
2204
2205         /*
2206          * eat all characters, parsing then and feeding complete samples
2207          */
2208         count = rbufp->recv_length;
2209         s = (unsigned char *)rbufp->recv_buffer;
2210         ts.fp = rbufp->recv_time;
2211
2212         while (count--)
2213         {
2214                 if (parse_ioread(&parse->parseio, (unsigned int)(*s++), &ts))
2215                 {
2216                         struct recvbuf *buf;
2217
2218                         /*
2219                          * got something good to eat
2220                          */
2221                         if (!PARSE_PPS(parse->parseio.parse_dtime.parse_state))
2222                         {
2223 #ifdef HAVE_PPSAPI
2224                                 if (parse->flags & PARSE_PPSCLOCK)
2225                                 {
2226                                         struct timespec pps_timeout;
2227                                         pps_info_t      pps_info;
2228
2229                                         pps_timeout.tv_sec  = 0;
2230                                         pps_timeout.tv_nsec = 0;
2231
2232                                         if (time_pps_fetch(parse->atom.handle, PPS_TSFMT_TSPEC, &pps_info,
2233                                                            &pps_timeout) == 0)
2234                                         {
2235                                                 if (pps_info.assert_sequence + pps_info.clear_sequence != parse->ppsserial)
2236                                                 {
2237                                                         double dtemp;
2238
2239                                                         struct timespec pts;
2240                                                         /*
2241                                                          * add PPS time stamp if available via ppsclock module
2242                                                          * and not supplied already.
2243                                                          */
2244                                                         if (parse->flags & PARSE_CLEAR)
2245                                                           pts = pps_info.clear_timestamp;
2246                                                         else
2247                                                           pts = pps_info.assert_timestamp;
2248
2249                                                         parse->parseio.parse_dtime.parse_ptime.fp.l_ui = (uint32_t) (pts.tv_sec + JAN_1970);
2250
2251                                                         dtemp = (double) pts.tv_nsec / 1e9;
2252                                                         if (dtemp < 0.) {
2253                                                                 dtemp += 1;
2254                                                                 parse->parseio.parse_dtime.parse_ptime.fp.l_ui--;
2255                                                         }
2256                                                         if (dtemp > 1.) {
2257                                                                 dtemp -= 1;
2258                                                                 parse->parseio.parse_dtime.parse_ptime.fp.l_ui++;
2259                                                         }
2260                                                         parse->parseio.parse_dtime.parse_ptime.fp.l_uf = (uint32_t)(dtemp * FRAC);
2261
2262                                                         parse->parseio.parse_dtime.parse_state |= PARSEB_PPS|PARSEB_S_PPS;
2263 #ifdef DEBUG
2264                                                         if (debug > 3)
2265                                                         {
2266                                                                 printf(
2267                                                                        "parse: local_receive: fd %d PPSAPI seq %ld - PPS %s\n",
2268                                                                        rbufp->fd,
2269                                                                        (long)pps_info.assert_sequence + (long)pps_info.clear_sequence,
2270                                                                        lfptoa(&parse->parseio.parse_dtime.parse_ptime.fp, 6));
2271                                                         }
2272 #endif
2273                                                 }
2274 #ifdef DEBUG
2275                                                 else
2276                                                 {
2277                                                         if (debug > 3)
2278                                                         {
2279                                                                 printf(
2280                                                                        "parse: local_receive: fd %d PPSAPI seq assert %ld, seq clear %ld - NO PPS event\n",
2281                                                                        rbufp->fd,
2282                                                                        (long)pps_info.assert_sequence, (long)pps_info.clear_sequence);
2283                                                         }
2284                                                 }
2285 #endif
2286                                                 parse->ppsserial = pps_info.assert_sequence + pps_info.clear_sequence;
2287                                         }
2288 #ifdef DEBUG
2289                                         else
2290                                         {
2291                                                 if (debug > 3)
2292                                                 {
2293                                                         printf(
2294                                                                "parse: local_receive: fd %d PPSAPI time_pps_fetch errno = %d\n",
2295                                                                rbufp->fd,
2296                                                                errno);
2297                                                 }
2298                                         }
2299 #endif
2300                                 }
2301 #else
2302 #ifdef TIOCDCDTIMESTAMP
2303                                 struct timeval dcd_time;
2304
2305                                 if (ioctl(parse->ppsfd, TIOCDCDTIMESTAMP, &dcd_time) != -1)
2306                                 {
2307                                         l_fp tstmp;
2308
2309                                         TVTOTS(&dcd_time, &tstmp);
2310                                         tstmp.l_ui += JAN_1970;
2311                                         L_SUB(&ts.fp, &tstmp);
2312                                         if (ts.fp.l_ui == 0)
2313                                         {
2314 #ifdef DEBUG
2315                                                 if (debug)
2316                                                 {
2317                                                         printf(
2318                                                                "parse: local_receive: fd %d DCDTIMESTAMP %s\n",
2319                                                                parse->ppsfd,
2320                                                                lfptoa(&tstmp, 6));
2321                                                         printf(" sigio %s\n",
2322                                                                lfptoa(&ts.fp, 6));
2323                                                 }
2324 #endif
2325                                                 parse->parseio.parse_dtime.parse_ptime.fp = tstmp;
2326                                                 parse->parseio.parse_dtime.parse_state |= PARSEB_PPS|PARSEB_S_PPS;
2327                                         }
2328                                 }
2329 #else /* TIOCDCDTIMESTAMP */
2330 #if defined(HAVE_STRUCT_PPSCLOCKEV) && (defined(HAVE_CIOGETEV) || defined(HAVE_TIOCGPPSEV))
2331                                 if (parse->flags & PARSE_PPSCLOCK)
2332                                   {
2333                                     l_fp tts;
2334                                     struct ppsclockev ev;
2335
2336 #ifdef HAVE_CIOGETEV
2337                                     if (ioctl(parse->ppsfd, CIOGETEV, (caddr_t)&ev) == 0)
2338 #endif
2339 #ifdef HAVE_TIOCGPPSEV
2340                                     if (ioctl(parse->ppsfd, TIOCGPPSEV, (caddr_t)&ev) == 0)
2341 #endif
2342                                         {
2343                                           if (ev.serial != parse->ppsserial)
2344                                             {
2345                                               /*
2346                                                * add PPS time stamp if available via ppsclock module
2347                                                * and not supplied already.
2348                                                */
2349                                               if (!buftvtots((const char *)&ev.tv, &tts))
2350                                                 {
2351                                                   ERR(ERR_BADDATA)
2352                                                     msyslog(LOG_ERR,"parse: local_receive: timestamp conversion error (buftvtots) (ppsclockev.tv)");
2353                                                 }
2354                                               else
2355                                                 {
2356                                                   parse->parseio.parse_dtime.parse_ptime.fp = tts;
2357                                                   parse->parseio.parse_dtime.parse_state |= PARSEB_PPS|PARSEB_S_PPS;
2358                                                 }
2359                                             }
2360                                           parse->ppsserial = ev.serial;
2361                                         }
2362                                   }
2363 #endif
2364 #endif /* TIOCDCDTIMESTAMP */
2365 #endif /* !HAVE_PPSAPI */
2366                         }
2367                         if (count)
2368                         {       /* simulate receive */
2369                                 buf = get_free_recv_buffer();
2370                                 if (buf != NULL) {
2371                                         memmove((caddr_t)buf->recv_buffer,
2372                                                 (caddr_t)&parse->parseio.parse_dtime,
2373                                                 sizeof(parsetime_t));
2374                                         buf->recv_length  = sizeof(parsetime_t);
2375                                         buf->recv_time    = rbufp->recv_time;
2376 #ifndef HAVE_IO_COMPLETION_PORT
2377                                         buf->srcadr       = rbufp->srcadr;
2378 #endif
2379                                         buf->dstadr       = rbufp->dstadr;
2380                                         buf->receiver     = rbufp->receiver;
2381                                         buf->fd           = rbufp->fd;
2382                                         buf->X_from_where = rbufp->X_from_where;
2383                                         parse->generic->io.recvcount++;
2384                                         packets_received++;
2385                                         add_full_recv_buffer(buf);
2386 #ifdef HAVE_IO_COMPLETION_PORT
2387                                         SetEvent(WaitableIoEventHandle);
2388 #endif
2389                                 }
2390                                 parse_iodone(&parse->parseio);
2391                         }
2392                         else
2393                         {
2394                                 memmove((caddr_t)rbufp->recv_buffer,
2395                                         (caddr_t)&parse->parseio.parse_dtime,
2396                                         sizeof(parsetime_t));
2397                                 parse_iodone(&parse->parseio);
2398                                 rbufp->recv_length = sizeof(parsetime_t);
2399                                 return 1; /* got something & in place return */
2400                         }
2401                 }
2402         }
2403         return 0;               /* nothing to pass up */
2404 }
2405
2406 /*--------------------------------------------------
2407  * local receive
2408  */
2409 static void
2410 local_receive(
2411         struct recvbuf *rbufp
2412         )
2413 {
2414         struct parseunit * parse;
2415         parsetime_t parsetime;
2416
2417         parse = (struct parseunit *)rbufp->recv_peer->procptr->unitptr;
2418         if (!parse->peer)
2419             return;
2420
2421         if (rbufp->recv_length != sizeof(parsetime_t))
2422         {
2423                 ERR(ERR_BADIO)
2424                         msyslog(LOG_ERR,"PARSE receiver #%d: local_receive: bad size (got %d expected %d)",
2425                                 CLK_UNIT(parse->peer), rbufp->recv_length, (int)sizeof(parsetime_t));
2426                 parse_event(parse, CEVNT_BADREPLY);
2427                 return;
2428         }
2429         clear_err(parse, ERR_BADIO);
2430
2431         memmove((caddr_t)&parsetime,
2432                 (caddr_t)rbufp->recv_buffer,
2433                 sizeof(parsetime_t));
2434
2435 #ifdef DEBUG
2436         if (debug > 3)
2437           {
2438             printf("PARSE receiver #%d: status %06x, state %08x, time(fp) %lx.%08lx, stime(fp) %lx.%08lx, ptime(fp) %lx.%08lx\n",
2439                    CLK_UNIT(parse->peer),
2440                    (unsigned int)parsetime.parse_status,
2441                    (unsigned int)parsetime.parse_state,
2442                    (unsigned long)parsetime.parse_time.fp.l_ui,
2443                    (unsigned long)parsetime.parse_time.fp.l_uf,
2444                    (unsigned long)parsetime.parse_stime.fp.l_ui,
2445                    (unsigned long)parsetime.parse_stime.fp.l_uf,
2446                    (unsigned long)parsetime.parse_ptime.fp.l_ui,
2447                    (unsigned long)parsetime.parse_ptime.fp.l_uf);
2448           }
2449 #endif
2450
2451         parse_process(parse, &parsetime);
2452 }
2453
2454 /*--------------------------------------------------
2455  * init_iobinding - find and initialize lower layers
2456  */
2457 static bind_t *
2458 init_iobinding(
2459         struct parseunit *parse
2460         )
2461 {
2462   bind_t *b = io_bindings;
2463
2464         while (b->bd_description != (char *)0)
2465         {
2466                 if ((*b->bd_init)(parse))
2467                 {
2468                         return b;
2469                 }
2470                 b++;
2471         }
2472         return (bind_t *)0;
2473 }
2474
2475 /**===========================================================================
2476  ** support routines
2477  **/
2478
2479 static NTP_PRINTF(4, 5) char *
2480 ap(char *buffer, size_t len, char *pos, const char *fmt, ...)
2481 {
2482         va_list va;
2483         int l;
2484         size_t rem = len - (pos - buffer);
2485
2486         if (rem == 0)
2487                 return pos;
2488
2489         va_start(va, fmt);
2490         l = vsnprintf(pos, rem, fmt, va);
2491         va_end(va);
2492
2493         if (l != -1) {
2494                 rem--;
2495                 if (rem >= (size_t)l)
2496                         pos += l;
2497                 else
2498                         pos += rem;
2499         }
2500
2501         return pos;
2502 }
2503
2504 /*--------------------------------------------------
2505  * convert a flag field to a string
2506  */
2507 static char *
2508 parsestate(
2509         u_long lstate,
2510         char *buffer,
2511         int size
2512         )
2513 {
2514         static struct bits
2515         {
2516                 u_long      bit;
2517                 const char *name;
2518         } flagstrings[] =
2519           {
2520                   { PARSEB_ANNOUNCE,   "DST SWITCH WARNING" },
2521                   { PARSEB_POWERUP,    "NOT SYNCHRONIZED" },
2522                   { PARSEB_NOSYNC,     "TIME CODE NOT CONFIRMED" },
2523                   { PARSEB_DST,        "DST" },
2524                   { PARSEB_UTC,        "UTC DISPLAY" },
2525                   { PARSEB_LEAPADD,    "LEAP ADD WARNING" },
2526                   { PARSEB_LEAPDEL,    "LEAP DELETE WARNING" },
2527                   { PARSEB_LEAPSECOND, "LEAP SECOND" },
2528                   { PARSEB_CALLBIT,    "CALL BIT" },
2529                   { PARSEB_TIMECODE,   "TIME CODE" },
2530                   { PARSEB_PPS,        "PPS" },
2531                   { PARSEB_POSITION,   "POSITION" },
2532                   { 0,                 NULL }
2533           };
2534
2535         static struct sbits
2536         {
2537                 u_long      bit;
2538                 const char *name;
2539         } sflagstrings[] =
2540           {
2541                   { PARSEB_S_LEAP,     "LEAP INDICATION" },
2542                   { PARSEB_S_PPS,      "PPS SIGNAL" },
2543                   { PARSEB_S_ANTENNA,  "ANTENNA" },
2544                   { PARSEB_S_POSITION, "POSITION" },
2545                   { 0,                 NULL }
2546           };
2547         int i;
2548         char *s, *t;
2549
2550         *buffer = '\0';
2551         s = t = buffer;
2552
2553         i = 0;
2554         while (flagstrings[i].bit)
2555         {
2556                 if (flagstrings[i].bit & lstate)
2557                 {
2558                         if (s != t)
2559                                 t = ap(buffer, size, t, "; ");
2560                         t = ap(buffer, size, t, "%s", flagstrings[i].name);
2561                 }
2562                 i++;
2563         }
2564
2565         if (lstate & (PARSEB_S_LEAP|PARSEB_S_ANTENNA|PARSEB_S_PPS|PARSEB_S_POSITION))
2566         {
2567                 if (s != t)
2568                         t = ap(buffer, size, t, "; ");
2569
2570                 t = ap(buffer, size, t, "(");
2571
2572                 s = t;
2573
2574                 i = 0;
2575                 while (sflagstrings[i].bit)
2576                 {
2577                         if (sflagstrings[i].bit & lstate)
2578                         {
2579                                 if (t != s)
2580                                 {
2581                                         t = ap(buffer, size, t, "; ");
2582                                 }
2583
2584                                 t = ap(buffer, size, t, "%s",
2585                                     sflagstrings[i].name);
2586                         }
2587                         i++;
2588                 }
2589                 t = ap(buffer, size, t, ")");
2590         }
2591         return buffer;
2592 }
2593
2594 /*--------------------------------------------------
2595  * convert a status flag field to a string
2596  */
2597 static char *
2598 parsestatus(
2599         u_long lstate,
2600         char *buffer,
2601         int size
2602         )
2603 {
2604         static struct bits
2605         {
2606                 u_long      bit;
2607                 const char *name;
2608         } flagstrings[] =
2609           {
2610                   { CVT_OK,      "CONVERSION SUCCESSFUL" },
2611                   { CVT_NONE,    "NO CONVERSION" },
2612                   { CVT_FAIL,    "CONVERSION FAILED" },
2613                   { CVT_BADFMT,  "ILLEGAL FORMAT" },
2614                   { CVT_BADDATE, "DATE ILLEGAL" },
2615                   { CVT_BADTIME, "TIME ILLEGAL" },
2616                   { CVT_ADDITIONAL, "ADDITIONAL DATA" },
2617                   { 0,           NULL }
2618           };
2619         int i;
2620         char *t;
2621
2622         t = buffer;
2623         *buffer = '\0';
2624
2625         i = 0;
2626         while (flagstrings[i].bit)
2627         {
2628                 if (flagstrings[i].bit & lstate)
2629                 {
2630                         if (t != buffer)
2631                                 t = ap(buffer, size, t, "; ");
2632                         t = ap(buffer, size, t, "%s", flagstrings[i].name);
2633                 }
2634                 i++;
2635         }
2636
2637         return buffer;
2638 }
2639
2640 /*--------------------------------------------------
2641  * convert a clock status flag field to a string
2642  */
2643 static const char *
2644 clockstatus(
2645         u_long lstate
2646         )
2647 {
2648         static char buffer[20];
2649         static struct status
2650         {
2651                 u_long      value;
2652                 const char *name;
2653         } flagstrings[] =
2654           {
2655                   { CEVNT_NOMINAL, "NOMINAL" },
2656                   { CEVNT_TIMEOUT, "NO RESPONSE" },
2657                   { CEVNT_BADREPLY,"BAD FORMAT" },
2658                   { CEVNT_FAULT,   "FAULT" },
2659                   { CEVNT_PROP,    "PROPAGATION DELAY" },
2660                   { CEVNT_BADDATE, "ILLEGAL DATE" },
2661                   { CEVNT_BADTIME, "ILLEGAL TIME" },
2662                   { (unsigned)~0L, NULL }
2663           };
2664         int i;
2665
2666         i = 0;
2667         while (flagstrings[i].value != (u_int)~0)
2668         {
2669                 if (flagstrings[i].value == lstate)
2670                 {
2671                         return flagstrings[i].name;
2672                 }
2673                 i++;
2674         }
2675
2676         snprintf(buffer, sizeof(buffer), "unknown #%ld", (u_long)lstate);
2677
2678         return buffer;
2679 }
2680
2681
2682 /*--------------------------------------------------
2683  * l_mktime - make representation of a relative time
2684  */
2685 static char *
2686 l_mktime(
2687         u_long delta
2688         )
2689 {
2690         u_long tmp, m, s;
2691         static char buffer[40];
2692         char *t;
2693
2694         buffer[0] = '\0';
2695         t = buffer;
2696
2697         if ((tmp = delta / (60*60*24)) != 0)
2698         {
2699                 t = ap(buffer, sizeof(buffer), t, "%ldd+", (u_long)tmp);
2700                 delta -= tmp * 60*60*24;
2701         }
2702
2703         s = delta % 60;
2704         delta /= 60;
2705         m = delta % 60;
2706         delta /= 60;
2707
2708         t = ap(buffer, sizeof(buffer), t, "%02d:%02d:%02d",
2709              (int)delta, (int)m, (int)s);
2710
2711         return buffer;
2712 }
2713
2714
2715 /*--------------------------------------------------
2716  * parse_statistics - list summary of clock states
2717  */
2718 static void
2719 parse_statistics(
2720         struct parseunit *parse
2721         )
2722 {
2723         int i;
2724
2725         NLOG(NLOG_CLOCKSTATIST) /* conditional if clause for conditional syslog */
2726                 {
2727                         msyslog(LOG_INFO, "PARSE receiver #%d: running time: %s",
2728                                 CLK_UNIT(parse->peer),
2729                                 l_mktime(current_time - parse->generic->timestarted));
2730
2731                         msyslog(LOG_INFO, "PARSE receiver #%d: current status: %s",
2732                                 CLK_UNIT(parse->peer),
2733                                 clockstatus(parse->generic->currentstatus));
2734
2735                         for (i = 0; i <= CEVNT_MAX; i++)
2736                         {
2737                                 u_long s_time;
2738                                 u_long percent, d = current_time - parse->generic->timestarted;
2739
2740                                 percent = s_time = PARSE_STATETIME(parse, i);
2741
2742                                 while (((u_long)(~0) / 10000) < percent)
2743                                 {
2744                                         percent /= 10;
2745                                         d       /= 10;
2746                                 }
2747
2748                                 if (d)
2749                                     percent = (percent * 10000) / d;
2750                                 else
2751                                     percent = 10000;
2752
2753                                 if (s_time)
2754                                     msyslog(LOG_INFO, "PARSE receiver #%d: state %18s: %13s (%3ld.%02ld%%)",
2755                                             CLK_UNIT(parse->peer),
2756                                             clockstatus((unsigned int)i),
2757                                             l_mktime(s_time),
2758                                             percent / 100, percent % 100);
2759                         }
2760                 }
2761 }
2762
2763 /*--------------------------------------------------
2764  * cparse_statistics - wrapper for statistics call
2765  */
2766 static void
2767 cparse_statistics(
2768         struct parseunit *parse
2769         )
2770 {
2771         if (parse->laststatistic + PARSESTATISTICS < current_time)
2772                 parse_statistics(parse);
2773         parse->laststatistic = current_time;
2774 }
2775
2776 /**===========================================================================
2777  ** ntp interface routines
2778  **/
2779
2780 /*--------------------------------------------------
2781  * parse_shutdown - shut down a PARSE clock
2782  */
2783 static void
2784 parse_shutdown(
2785         int unit,
2786         struct peer *peer
2787         )
2788 {
2789         struct parseunit *parse = NULL;
2790
2791         if (peer && peer->procptr)
2792                 parse = peer->procptr->unitptr;
2793
2794         if (!parse)
2795         {
2796                 /* nothing to clean up */
2797                 return;
2798         }
2799
2800         if (!parse->peer)
2801         {
2802                 msyslog(LOG_INFO, "PARSE receiver #%d: INTERNAL ERROR - unit already inactive - shutdown ignored", unit);
2803                 return;
2804         }
2805
2806 #ifdef HAVE_PPSAPI
2807         if (parse->flags & PARSE_PPSCLOCK)
2808         {
2809                 (void)time_pps_destroy(parse->atom.handle);
2810         }
2811 #endif
2812         if (parse->generic->io.fd != parse->ppsfd && parse->ppsfd != -1)
2813                 (void)closeserial(parse->ppsfd);  /* close separate PPS source */
2814
2815         /*
2816          * print statistics a last time and
2817          * stop statistics machine
2818          */
2819         parse_statistics(parse);
2820
2821         if (parse->parse_type->cl_end)
2822         {
2823                 parse->parse_type->cl_end(parse);
2824         }
2825
2826         /*
2827          * cleanup before leaving this world
2828          */
2829         if (parse->binding)
2830             PARSE_END(parse);
2831
2832         /*
2833          * Tell the I/O module to turn us off.  We're history.
2834          */
2835         io_closeclock(&parse->generic->io);
2836
2837         free_varlist(parse->kv);
2838
2839         NLOG(NLOG_CLOCKINFO) /* conditional if clause for conditional syslog */
2840                 msyslog(LOG_INFO, "PARSE receiver #%d: reference clock \"%s\" removed",
2841                         CLK_UNIT(parse->peer), parse->parse_type->cl_description);
2842
2843         parse->peer = (struct peer *)0; /* unused now */
2844         peer->procptr->unitptr = (caddr_t)0;
2845         free(parse);
2846 }
2847
2848 #ifdef HAVE_PPSAPI
2849 /*----------------------------------------
2850  * set up HARDPPS via PPSAPI
2851  */
2852 static void
2853 parse_hardpps(
2854               struct parseunit *parse,
2855               int mode
2856               )
2857 {
2858         if (parse->hardppsstate == mode)
2859                 return;
2860
2861         if (CLK_PPS(parse->peer) && (parse->flags & PARSE_PPSKERNEL)) {
2862                 int     i = 0;
2863
2864                 if (mode == PARSE_HARDPPS_ENABLE)
2865                         {
2866                                 if (parse->flags & PARSE_CLEAR)
2867                                         i = PPS_CAPTURECLEAR;
2868                                 else
2869                                         i = PPS_CAPTUREASSERT;
2870                         }
2871
2872                 if (time_pps_kcbind(parse->atom.handle, PPS_KC_HARDPPS, i,
2873                     PPS_TSFMT_TSPEC) < 0) {
2874                         msyslog(LOG_ERR, "PARSE receiver #%d: time_pps_kcbind failed: %m",
2875                                 CLK_UNIT(parse->peer));
2876                 } else {
2877                         NLOG(NLOG_CLOCKINFO)
2878                                 msyslog(LOG_INFO, "PARSE receiver #%d: kernel PPS synchronisation %sabled",
2879                                         CLK_UNIT(parse->peer), (mode == PARSE_HARDPPS_ENABLE) ? "en" : "dis");
2880                         /*
2881                          * tell the rest, that we have a kernel PPS source, iff we ever enable HARDPPS
2882                          */
2883                         if (mode == PARSE_HARDPPS_ENABLE)
2884                                 hardpps_enable = 1;
2885                 }
2886         }
2887
2888         parse->hardppsstate = mode;
2889 }
2890
2891 /*----------------------------------------
2892  * set up PPS via PPSAPI
2893  */
2894 static int
2895 parse_ppsapi(
2896              struct parseunit *parse
2897         )
2898 {
2899         int cap, mode_ppsoffset;
2900         const char *cp;
2901
2902         parse->flags &= (u_char) (~PARSE_PPSCLOCK);
2903
2904         /*
2905          * collect PPSAPI offset capability - should move into generic handling
2906          */
2907         if (time_pps_getcap(parse->atom.handle, &cap) < 0) {
2908                 msyslog(LOG_ERR, "PARSE receiver #%d: parse_ppsapi: time_pps_getcap failed: %m",
2909                         CLK_UNIT(parse->peer));
2910
2911                 return 0;
2912         }
2913
2914         /*
2915          * initialize generic PPSAPI interface
2916          *
2917          * we leave out CLK_FLAG3 as time_pps_kcbind()
2918          * is handled here for now. Ideally this should also
2919          * be part of the generic PPSAPI interface
2920          */
2921         if (!refclock_params(parse->flags & (CLK_FLAG1|CLK_FLAG2|CLK_FLAG4), &parse->atom))
2922                 return 0;
2923
2924         /* nb. only turn things on, if someone else has turned something
2925          *      on before we get here, leave it alone!
2926          */
2927
2928         if (parse->flags & PARSE_CLEAR) {
2929                 cp = "CLEAR";
2930                 mode_ppsoffset = PPS_OFFSETCLEAR;
2931         } else {
2932                 cp = "ASSERT";
2933                 mode_ppsoffset = PPS_OFFSETASSERT;
2934         }
2935
2936         msyslog(LOG_INFO, "PARSE receiver #%d: initializing PPS to %s",
2937                 CLK_UNIT(parse->peer), cp);
2938
2939         if (!(mode_ppsoffset & cap)) {
2940           msyslog(LOG_WARNING, "PARSE receiver #%d: Cannot set PPS_%sCLEAR, this will increase jitter (PPS API capabilities=0x%x)",
2941                   CLK_UNIT(parse->peer), cp, cap);
2942                 mode_ppsoffset = 0;
2943         } else {
2944                 if (mode_ppsoffset == PPS_OFFSETCLEAR)
2945                         {
2946                                 parse->atom.pps_params.clear_offset.tv_sec = (time_t)(-parse->ppsphaseadjust);
2947                                 parse->atom.pps_params.clear_offset.tv_nsec = (long)(-1e9*(parse->ppsphaseadjust - (double)(long)parse->ppsphaseadjust));
2948                         }
2949
2950                 if (mode_ppsoffset == PPS_OFFSETASSERT)
2951                         {
2952                                 parse->atom.pps_params.assert_offset.tv_sec = (time_t)(-parse->ppsphaseadjust);
2953                                 parse->atom.pps_params.assert_offset.tv_nsec = (long)(-1e9*(parse->ppsphaseadjust - (double)(long)parse->ppsphaseadjust));
2954                         }
2955         }
2956
2957         parse->atom.pps_params.mode |= mode_ppsoffset;
2958
2959         if (time_pps_setparams(parse->atom.handle, &parse->atom.pps_params) < 0) {
2960           msyslog(LOG_ERR, "PARSE receiver #%d: FAILED set PPS parameters: %m",
2961                   CLK_UNIT(parse->peer));
2962                 return 0;
2963         }
2964
2965         parse->flags |= PARSE_PPSCLOCK;
2966         return 1;
2967 }
2968 #else
2969 #define parse_hardpps(_PARSE_, _MODE_) /* empty */
2970 #endif
2971
2972 /*--------------------------------------------------
2973  * parse_start - open the PARSE devices and initialize data for processing
2974  */
2975 static int
2976 parse_start(
2977         int sysunit,
2978         struct peer *peer
2979         )
2980 {
2981         u_int unit;
2982         int fd232;
2983 #ifdef HAVE_TERMIOS
2984         struct termios tio;             /* NEEDED FOR A LONG TIME ! */
2985 #endif
2986 #ifdef HAVE_SYSV_TTYS
2987         struct termio tio;              /* NEEDED FOR A LONG TIME ! */
2988 #endif
2989         struct parseunit * parse;
2990         char parsedev[sizeof(PARSEDEVICE)+20];
2991         char parseppsdev[sizeof(PARSEPPSDEVICE)+20];
2992         parsectl_t tmp_ctl;
2993         u_int type;
2994
2995         /*
2996          * get out Copyright information once
2997          */
2998         if (!notice)
2999         {
3000                 NLOG(NLOG_CLOCKINFO) /* conditional if clause for conditional syslog */
3001                         msyslog(LOG_INFO, "NTP PARSE support: Copyright (c) 1989-2009, Frank Kardel");
3002                 notice = 1;
3003         }
3004
3005         type = CLK_TYPE(peer);
3006         unit = CLK_UNIT(peer);
3007
3008         if ((type == (u_int)~0) || (parse_clockinfo[type].cl_description == (char *)0))
3009         {
3010                 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: unsupported clock type %d (max %d)",
3011                         unit, CLK_REALTYPE(peer), ncltypes-1);
3012                 return 0;
3013         }
3014
3015         /*
3016          * Unit okay, attempt to open the device.
3017          */
3018         (void) snprintf(parsedev, sizeof(parsedev), PARSEDEVICE, unit);
3019         (void) snprintf(parseppsdev, sizeof(parsedev), PARSEPPSDEVICE, unit);
3020
3021 #ifndef O_NOCTTY
3022 #define O_NOCTTY 0
3023 #endif
3024 #ifndef O_NONBLOCK
3025 #define O_NONBLOCK 0
3026 #endif
3027
3028         fd232 = tty_open(parsedev, O_RDWR | O_NOCTTY | O_NONBLOCK, 0777);
3029
3030         if (fd232 == -1)
3031         {
3032                 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: open of %s failed: %m", unit, parsedev);
3033                 return 0;
3034         }
3035
3036         parse = emalloc_zero(sizeof(*parse));
3037
3038         parse->generic = peer->procptr;  /* link up */
3039         parse->generic->unitptr = (caddr_t)parse; /* link down */
3040
3041         /*
3042          * Set up the structures
3043          */
3044         parse->generic->timestarted    = current_time;
3045         parse->lastchange     = current_time;
3046
3047         parse->flags          = 0;
3048         parse->pollneeddata   = 0;
3049         parse->laststatistic  = current_time;
3050         parse->lastformat     = (unsigned short)~0;     /* assume no format known */
3051         parse->timedata.parse_status = (unsigned short)~0;      /* be sure to mark initial status change */
3052         parse->lastmissed     = 0;      /* assume got everything */
3053         parse->ppsserial      = 0;
3054         parse->ppsfd          = -1;
3055         parse->localdata      = (void *)0;
3056         parse->localstate     = 0;
3057         parse->kv             = (struct ctl_var *)0;
3058
3059         clear_err(parse, ERR_ALL);
3060
3061         parse->parse_type     = &parse_clockinfo[type];
3062
3063         parse->maxunsync      = parse->parse_type->cl_maxunsync;
3064
3065         parse->generic->fudgetime1 = parse->parse_type->cl_basedelay;
3066
3067         parse->generic->fudgetime2 = 0.0;
3068         parse->ppsphaseadjust = parse->generic->fudgetime2;
3069
3070         parse->generic->clockdesc  = parse->parse_type->cl_description;
3071
3072         peer->rootdelay       = parse->parse_type->cl_rootdelay;
3073         peer->sstclktype      = parse->parse_type->cl_type;
3074         peer->precision       = sys_precision;
3075
3076         peer->stratum         = STRATUM_REFCLOCK;
3077
3078         if (peer->stratum <= 1)
3079             memmove((char *)&parse->generic->refid, parse->parse_type->cl_id, 4);
3080         else
3081             parse->generic->refid = htonl(PARSEHSREFID);
3082
3083         parse->generic->io.fd = fd232;
3084
3085         parse->peer = peer;             /* marks it also as busy */
3086
3087         /*
3088          * configure terminal line
3089          */
3090         if (TTY_GETATTR(fd232, &tio) == -1)
3091         {
3092                 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: tcgetattr(%d, &tio): %m", unit, fd232);
3093                 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */
3094                 return 0;
3095         }
3096         else
3097         {
3098 #ifndef _PC_VDISABLE
3099                 memset((char *)tio.c_cc, 0, sizeof(tio.c_cc));
3100 #else
3101                 int disablec;
3102                 errno = 0;              /* pathconf can deliver -1 without changing errno ! */
3103
3104                 disablec = fpathconf(parse->generic->io.fd, _PC_VDISABLE);
3105                 if (disablec == -1 && errno)
3106                 {
3107                         msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: fpathconf(fd, _PC_VDISABLE): %m", CLK_UNIT(parse->peer));
3108                         memset((char *)tio.c_cc, 0, sizeof(tio.c_cc)); /* best guess */
3109                 }
3110                 else
3111                     if (disablec != -1)
3112                         memset((char *)tio.c_cc, disablec, sizeof(tio.c_cc));
3113 #endif
3114
3115 #if defined (VMIN) || defined(VTIME)
3116                 if ((parse_clockinfo[type].cl_lflag & ICANON) == 0)
3117                 {
3118 #ifdef VMIN
3119                         tio.c_cc[VMIN]   = 1;
3120 #endif
3121 #ifdef VTIME
3122                         tio.c_cc[VTIME]  = 0;
3123 #endif
3124                 }
3125 #endif
3126
3127                 tio.c_cflag = (tcflag_t) parse_clockinfo[type].cl_cflag;
3128                 tio.c_iflag = (tcflag_t) parse_clockinfo[type].cl_iflag;
3129                 tio.c_oflag = (tcflag_t) parse_clockinfo[type].cl_oflag;
3130                 tio.c_lflag = (tcflag_t) parse_clockinfo[type].cl_lflag;
3131
3132
3133 #ifdef HAVE_TERMIOS
3134                 if ((cfsetospeed(&tio, (speed_t) parse_clockinfo[type].cl_speed) == -1) ||
3135                     (cfsetispeed(&tio, (speed_t) parse_clockinfo[type].cl_speed) == -1))
3136                 {
3137                         msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: tcset{i,o}speed(&tio, speed): %m", unit);
3138                         parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */
3139                         return 0;
3140                 }
3141 #else
3142                 tio.c_cflag     |= parse_clockinfo[type].cl_speed;
3143 #endif
3144
3145                 /*
3146                  * set up pps device
3147                  * if the PARSEPPSDEVICE can be opened that will be used
3148                  * for PPS else PARSEDEVICE will be used
3149                  */
3150                 parse->ppsfd = tty_open(parseppsdev, O_RDWR | O_NOCTTY | O_NONBLOCK, 0777);
3151
3152                 if (parse->ppsfd == -1)
3153                 {
3154                         parse->ppsfd = fd232;
3155                 }
3156
3157 /*
3158  * Linux PPS - the old way
3159  */
3160 #if defined(HAVE_TIO_SERIAL_STUFF)              /* Linux hack: define PPS interface */
3161                 {
3162                         struct serial_struct    ss;
3163                         if (ioctl(parse->ppsfd, TIOCGSERIAL, &ss) < 0 ||
3164                             (
3165 #ifdef ASYNC_LOW_LATENCY
3166                              ss.flags |= ASYNC_LOW_LATENCY,
3167 #endif
3168 #ifndef HAVE_PPSAPI
3169 #ifdef ASYNC_PPS_CD_NEG
3170                              ss.flags |= ASYNC_PPS_CD_NEG,
3171 #endif
3172 #endif
3173                              ioctl(parse->ppsfd, TIOCSSERIAL, &ss)) < 0) {
3174                                 msyslog(LOG_NOTICE, "refclock_parse: TIOCSSERIAL fd %d, %m", parse->ppsfd);
3175                                 msyslog(LOG_NOTICE,
3176                                         "refclock_parse: optional PPS processing not available");
3177                         } else {
3178                                 parse->flags    |= PARSE_PPSCLOCK;
3179 #ifdef ASYNC_PPS_CD_NEG
3180                                 NLOG(NLOG_CLOCKINFO)
3181                                   msyslog(LOG_INFO,
3182                                           "refclock_parse: PPS detection on");
3183 #endif
3184                         }
3185                 }
3186 #endif
3187
3188 /*
3189  * SUN the Solaris way
3190  */
3191 #ifdef HAVE_TIOCSPPS                    /* SUN PPS support */
3192                 if (CLK_PPS(parse->peer))
3193                     {
3194                         int i = 1;
3195
3196                         if (ioctl(parse->ppsfd, TIOCSPPS, (caddr_t)&i) == 0)
3197                             {
3198                                 parse->flags |= PARSE_PPSCLOCK;
3199                             }
3200                     }
3201 #endif
3202
3203 /*
3204  * PPS via PPSAPI
3205  */
3206 #if defined(HAVE_PPSAPI)
3207                 parse->hardppsstate = PARSE_HARDPPS_DISABLE;
3208                 if (CLK_PPS(parse->peer))
3209                 {
3210                   if (!refclock_ppsapi(parse->ppsfd, &parse->atom))
3211                     {
3212                       msyslog(LOG_NOTICE, "PARSE receiver #%d: parse_start: could not set up PPS: %m", CLK_UNIT(parse->peer));
3213                     }
3214                   else
3215                     {
3216                       parse_ppsapi(parse);
3217                     }
3218                 }
3219 #endif
3220
3221                 if (TTY_SETATTR(fd232, &tio) == -1)
3222                 {
3223                         msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: tcsetattr(%d, &tio): %m", unit, fd232);
3224                         parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */
3225                         return 0;
3226                 }
3227         }
3228
3229         /*
3230          * pick correct input machine
3231          */
3232         parse->generic->io.srcclock = peer;
3233         parse->generic->io.datalen = 0;
3234
3235         parse->binding = init_iobinding(parse);
3236
3237         if (parse->binding == (bind_t *)0)
3238                 {
3239                         msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: io sub system initialisation failed.", CLK_UNIT(parse->peer));
3240                         parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */
3241                         return 0;                       /* well, ok - special initialisation broke */
3242                 }
3243
3244         parse->generic->io.clock_recv = parse->binding->bd_receive; /* pick correct receive routine */
3245         parse->generic->io.io_input   = parse->binding->bd_io_input; /* pick correct input routine */
3246
3247         /*
3248          * as we always(?) get 8 bit chars we want to be
3249          * sure, that the upper bits are zero for less
3250          * than 8 bit I/O - so we pass that information on.
3251          * note that there can be only one bit count format
3252          * per file descriptor
3253          */
3254
3255         switch (tio.c_cflag & CSIZE)
3256         {
3257             case CS5:
3258                 tmp_ctl.parsesetcs.parse_cs = PARSE_IO_CS5;
3259                 break;
3260
3261             case CS6:
3262                 tmp_ctl.parsesetcs.parse_cs = PARSE_IO_CS6;
3263                 break;
3264
3265             case CS7:
3266                 tmp_ctl.parsesetcs.parse_cs = PARSE_IO_CS7;
3267                 break;
3268
3269             case CS8:
3270                 tmp_ctl.parsesetcs.parse_cs = PARSE_IO_CS8;
3271                 break;
3272         }
3273
3274         if (!PARSE_SETCS(parse, &tmp_ctl))
3275         {
3276                 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: parse_setcs() FAILED.", unit);
3277                 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */
3278                 return 0;                       /* well, ok - special initialisation broke */
3279         }
3280
3281         strlcpy(tmp_ctl.parseformat.parse_buffer, parse->parse_type->cl_format, sizeof(tmp_ctl.parseformat.parse_buffer));
3282         tmp_ctl.parseformat.parse_count = (u_short) strlen(tmp_ctl.parseformat.parse_buffer);
3283
3284         if (!PARSE_SETFMT(parse, &tmp_ctl))
3285         {
3286                 msyslog(LOG_ERR, "PARSE receiver #%d: parse_start: parse_setfmt() FAILED.", unit);
3287                 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */
3288                 return 0;                       /* well, ok - special initialisation broke */
3289         }
3290
3291         /*
3292          * get rid of all IO accumulated so far
3293          */
3294 #ifdef HAVE_TERMIOS
3295         (void) tcflush(parse->generic->io.fd, TCIOFLUSH);
3296 #else
3297 #if defined(TCFLSH) && defined(TCIOFLUSH)
3298         {
3299                 int flshcmd = TCIOFLUSH;
3300
3301                 (void) ioctl(parse->generic->io.fd, TCFLSH, (caddr_t)&flshcmd);
3302         }
3303 #endif
3304 #endif
3305
3306         /*
3307          * try to do any special initializations
3308          */
3309         if (parse->parse_type->cl_init)
3310                 {
3311                         if (parse->parse_type->cl_init(parse))
3312                                 {
3313                                         parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */
3314                                         return 0;               /* well, ok - special initialisation broke */
3315                                 }
3316                 }
3317
3318         /*
3319          * Insert in async io device list.
3320          */
3321         if (!io_addclock(&parse->generic->io))
3322         {
3323                 msyslog(LOG_ERR,
3324                         "PARSE receiver #%d: parse_start: addclock %s fails (ABORT - clock type requires async io)", CLK_UNIT(parse->peer), parsedev);
3325                 parse_shutdown(CLK_UNIT(parse->peer), peer); /* let our cleaning staff do the work */
3326                 return 0;
3327         }
3328
3329         /*
3330          * print out configuration
3331          */
3332         NLOG(NLOG_CLOCKINFO)
3333                 {
3334                         /* conditional if clause for conditional syslog */
3335                         msyslog(LOG_INFO, "PARSE receiver #%d: reference clock \"%s\" (I/O device %s, PPS device %s) added",
3336                                 CLK_UNIT(parse->peer),
3337                                 parse->parse_type->cl_description, parsedev,
3338                                 (parse->ppsfd != parse->generic->io.fd) ? parseppsdev : parsedev);
3339
3340                         msyslog(LOG_INFO, "PARSE receiver #%d: Stratum %d, trust time %s, precision %d",
3341                                 CLK_UNIT(parse->peer),
3342                                 parse->peer->stratum,
3343                                 l_mktime(parse->maxunsync), parse->peer->precision);
3344
3345                         msyslog(LOG_INFO, "PARSE receiver #%d: rootdelay %.6f s, phase adjustment %.6f s, PPS phase adjustment %.6f s, %s IO handling",
3346                                 CLK_UNIT(parse->peer),
3347                                 parse->parse_type->cl_rootdelay,
3348                                 parse->generic->fudgetime1,
3349                                 parse->ppsphaseadjust,
3350                                 parse->binding->bd_description);
3351
3352                         msyslog(LOG_INFO, "PARSE receiver #%d: Format recognition: %s", CLK_UNIT(parse->peer),
3353                                 parse->parse_type->cl_format);
3354                         msyslog(LOG_INFO, "PARSE receiver #%d: %sPPS support%s", CLK_UNIT(parse->peer),
3355                                 CLK_PPS(parse->peer) ? "" : "NO ",
3356                                 CLK_PPS(parse->peer) ?
3357 #ifdef PPS_METHOD
3358                                 " (implementation " PPS_METHOD ")"
3359 #else
3360                                 ""
3361 #endif
3362                                 : ""
3363                                 );
3364                 }
3365
3366         return 1;
3367 }
3368
3369 /*--------------------------------------------------
3370  * parse_ctl - process changes on flags/time values
3371  */
3372 static void
3373 parse_ctl(
3374             struct parseunit *parse,
3375             const struct refclockstat *in
3376             )
3377 {
3378         if (in)
3379         {
3380                 if (in->haveflags & (CLK_HAVEFLAG1|CLK_HAVEFLAG2|CLK_HAVEFLAG3|CLK_HAVEFLAG4))
3381                 {
3382                   u_char mask = CLK_FLAG1|CLK_FLAG2|CLK_FLAG3|CLK_FLAG4;
3383                   parse->flags = (parse->flags & (u_char)(~mask)) | (in->flags & mask);
3384 #if defined(HAVE_PPSAPI)
3385                   if (CLK_PPS(parse->peer))
3386                     {
3387                       parse_ppsapi(parse);
3388                     }
3389 #endif
3390                 }
3391
3392                 if (in->haveflags & CLK_HAVETIME1)
3393                 {
3394                   parse->generic->fudgetime1 = in->fudgetime1;
3395                   msyslog(LOG_INFO, "PARSE receiver #%d: new phase adjustment %.6f s",
3396                           CLK_UNIT(parse->peer),
3397                           parse->generic->fudgetime1);
3398                 }
3399
3400                 if (in->haveflags & CLK_HAVETIME2)
3401                 {
3402                   parse->generic->fudgetime2 = in->fudgetime2;
3403                   if (parse->flags & PARSE_TRUSTTIME)
3404                     {
3405                       parse->maxunsync = (u_long)ABS(in->fudgetime2);
3406                       msyslog(LOG_INFO, "PARSE receiver #%d: new trust time %s",
3407                               CLK_UNIT(parse->peer),
3408                               l_mktime(parse->maxunsync));
3409                     }
3410                   else
3411                     {
3412                       parse->ppsphaseadjust = in->fudgetime2;
3413                       msyslog(LOG_INFO, "PARSE receiver #%d: new PPS phase adjustment %.6f s",
3414                           CLK_UNIT(parse->peer),
3415                               parse->ppsphaseadjust);
3416 #if defined(HAVE_PPSAPI)
3417                       if (CLK_PPS(parse->peer))
3418                       {
3419                               parse_ppsapi(parse);
3420                       }
3421 #endif
3422                     }
3423                 }
3424         }
3425 }
3426
3427 /*--------------------------------------------------
3428  * parse_poll - called by the transmit procedure
3429  */
3430 static void
3431 parse_poll(
3432         int unit,
3433         struct peer *peer
3434         )
3435 {
3436         struct parseunit *parse = peer->procptr->unitptr;
3437
3438         if (peer != parse->peer)
3439         {
3440                 msyslog(LOG_ERR,
3441                         "PARSE receiver #%d: poll: INTERNAL: peer incorrect",
3442                         unit);
3443                 return;
3444         }
3445
3446         /*
3447          * Update clock stat counters
3448          */
3449         parse->generic->polls++;
3450
3451         if (parse->pollneeddata &&
3452             ((int)(current_time - parse->pollneeddata) > (1<<(max(min(parse->peer->hpoll, parse->peer->ppoll), parse->peer->minpoll)))))
3453         {
3454                 /*
3455                  * start worrying when exceeding a poll inteval
3456                  * bad news - didn't get a response last time
3457                  */
3458                 parse->lastmissed = current_time;
3459                 parse_event(parse, CEVNT_TIMEOUT);
3460
3461                 ERR(ERR_NODATA)
3462                         msyslog(LOG_WARNING, "PARSE receiver #%d: no data from device within poll interval (check receiver / wiring)", CLK_UNIT(parse->peer));
3463         }
3464
3465         /*
3466          * we just mark that we want the next sample for the clock filter
3467          */
3468         parse->pollneeddata = current_time;
3469
3470         if (parse->parse_type->cl_poll)
3471         {
3472                 parse->parse_type->cl_poll(parse);
3473         }
3474
3475         cparse_statistics(parse);
3476
3477         return;
3478 }
3479
3480 #define LEN_STATES 300          /* length of state string */
3481
3482 /*--------------------------------------------------
3483  * parse_control - set fudge factors, return statistics
3484  */
3485 static void
3486 parse_control(
3487         int unit,
3488         const struct refclockstat *in,
3489         struct refclockstat *out,
3490         struct peer *peer
3491         )
3492 {
3493         struct parseunit *parse = peer->procptr->unitptr;
3494         parsectl_t tmpctl;
3495
3496         static char outstatus[400];     /* status output buffer */
3497
3498         if (out)
3499         {
3500                 out->lencode       = 0;
3501                 out->p_lastcode    = 0;
3502                 out->kv_list       = (struct ctl_var *)0;
3503         }
3504
3505         if (!parse || !parse->peer)
3506         {
3507                 msyslog(LOG_ERR, "PARSE receiver #%d: parse_control: unit invalid (UNIT INACTIVE)",
3508                         unit);
3509                 return;
3510         }
3511
3512         unit = CLK_UNIT(parse->peer);
3513
3514         /*
3515          * handle changes
3516          */
3517         parse_ctl(parse, in);
3518
3519         /*
3520          * supply data
3521          */
3522         if (out)
3523         {
3524                 u_long sum = 0;
3525                 char *tt, *start;
3526                 int i;
3527
3528                 outstatus[0] = '\0';
3529
3530                 out->type       = REFCLK_PARSE;
3531
3532                 /*
3533                  * keep fudgetime2 in sync with TRUSTTIME/MAXUNSYNC flag1
3534                  */
3535                 parse->generic->fudgetime2 = (parse->flags & PARSE_TRUSTTIME) ? (double)parse->maxunsync : parse->ppsphaseadjust;
3536
3537                 /*
3538                  * figure out skew between PPS and RS232 - just for informational
3539                  * purposes
3540                  */
3541                 if (PARSE_SYNC(parse->timedata.parse_state))
3542                 {
3543                         if (PARSE_PPS(parse->timedata.parse_state) && PARSE_TIMECODE(parse->timedata.parse_state))
3544                         {
3545                                 l_fp off;
3546
3547                                 /*
3548                                  * we have a PPS and RS232 signal - calculate the skew
3549                                  * WARNING: assumes on TIMECODE == PULSE (timecode after pulse)
3550                                  */
3551                                 off = parse->timedata.parse_stime.fp;
3552                                 L_SUB(&off, &parse->timedata.parse_ptime.fp); /* true offset */
3553                                 tt = add_var(&out->kv_list, 80, RO);
3554                                 snprintf(tt, 80, "refclock_ppsskew=%s", lfptoms(&off, 6));
3555                         }
3556                 }
3557
3558                 if (PARSE_PPS(parse->timedata.parse_state))
3559                 {
3560                         tt = add_var(&out->kv_list, 80, RO|DEF);
3561                         snprintf(tt, 80, "refclock_ppstime=\"%s\"", gmprettydate(&parse->timedata.parse_ptime.fp));
3562                 }
3563
3564                 start = tt = add_var(&out->kv_list, 128, RO|DEF);
3565                 tt = ap(start, 128, tt, "refclock_time=\"");
3566
3567                 if (parse->timedata.parse_time.fp.l_ui == 0)
3568                 {
3569                         tt = ap(start, 128, tt, "<UNDEFINED>\"");
3570                 }
3571                 else
3572                 {
3573                         tt = ap(start, 128, tt, "%s\"",
3574                             gmprettydate(&parse->timedata.parse_time.fp));
3575                 }
3576
3577                 if (!PARSE_GETTIMECODE(parse, &tmpctl))
3578                 {
3579                         ERR(ERR_INTERNAL)
3580                                 msyslog(LOG_ERR, "PARSE receiver #%d: parse_control: parse_timecode() FAILED", unit);
3581                 }
3582                 else
3583                 {
3584                         start = tt = add_var(&out->kv_list, 512, RO|DEF);
3585                         tt = ap(start, 512, tt, "refclock_status=\"");
3586
3587                         /*
3588                          * copy PPS flags from last read transaction (informational only)
3589                          */
3590                         tmpctl.parsegettc.parse_state |= parse->timedata.parse_state &
3591                                 (PARSEB_PPS|PARSEB_S_PPS);
3592
3593                         (void)parsestate(tmpctl.parsegettc.parse_state, tt, BUFFER_SIZES(start, tt, 512));
3594
3595                         tt += strlen(tt);
3596
3597                         tt = ap(start, 512, tt, "\"");
3598
3599                         if (tmpctl.parsegettc.parse_count)
3600                             mkascii(outstatus+strlen(outstatus), (int)(sizeof(outstatus)- strlen(outstatus) - 1),
3601                                     tmpctl.parsegettc.parse_buffer, (unsigned)(tmpctl.parsegettc.parse_count));
3602
3603                 }
3604
3605                 tmpctl.parseformat.parse_format = tmpctl.parsegettc.parse_format;
3606
3607                 if (!PARSE_GETFMT(parse, &tmpctl))
3608                 {
3609                         ERR(ERR_INTERNAL)
3610                                 msyslog(LOG_ERR, "PARSE receiver #%d: parse_control: parse_getfmt() FAILED", unit);
3611                 }
3612                 else
3613                 {
3614                         int count = tmpctl.parseformat.parse_count - 1;
3615
3616                         start = tt = add_var(&out->kv_list, 80, RO|DEF);
3617                         tt = ap(start, 80, tt, "refclock_format=\"");
3618
3619                         if (count > 0) {
3620                                 tt = ap(start, 80, tt, "%*.*s",
3621                                         count,
3622                                         count,
3623                                         tmpctl.parseformat.parse_buffer);
3624                         }
3625
3626                         tt = ap(start, 80, tt, "\"");
3627                 }
3628
3629                 /*
3630                  * gather state statistics
3631                  */
3632
3633                 start = tt = add_var(&out->kv_list, LEN_STATES, RO|DEF);
3634                 tt = ap(start, LEN_STATES, tt, "refclock_states=\"");
3635
3636                 for (i = 0; i <= CEVNT_MAX; i++)
3637                 {
3638                         u_long s_time;
3639                         u_long d = current_time - parse->generic->timestarted;
3640                         u_long percent;
3641
3642                         percent = s_time = PARSE_STATETIME(parse, i);
3643
3644                         while (((u_long)(~0) / 10000) < percent)
3645                         {
3646                                 percent /= 10;
3647                                 d       /= 10;
3648                         }
3649
3650                         if (d)
3651                             percent = (percent * 10000) / d;
3652                         else
3653                             percent = 10000;
3654
3655                         if (s_time)
3656                         {
3657                                 char item[80];
3658                                 int count;
3659
3660                                 snprintf(item, 80, "%s%s%s: %s (%d.%02d%%)",
3661                                         sum ? "; " : "",
3662                                         (parse->generic->currentstatus == i) ? "*" : "",
3663                                         clockstatus((unsigned int)i),
3664                                         l_mktime(s_time),
3665                                         (int)(percent / 100), (int)(percent % 100));
3666                                 if ((count = (int) strlen(item)) < (LEN_STATES - 40 - (tt - start)))
3667                                         {
3668                                                 tt = ap(start, LEN_STATES, tt,
3669                                                     "%s", item);
3670                                         }
3671                                 sum += s_time;
3672                         }
3673                 }
3674
3675                 tt = ap(start, LEN_STATES, tt,
3676                     "; running time: %s\"", l_mktime(sum));
3677
3678                 tt = add_var(&out->kv_list, 32, RO);
3679                 snprintf(tt, 32,  "refclock_id=\"%s\"", parse->parse_type->cl_id);
3680
3681                 tt = add_var(&out->kv_list, 80, RO);
3682                 snprintf(tt, 80,  "refclock_iomode=\"%s\"", parse->binding->bd_description);
3683
3684                 tt = add_var(&out->kv_list, 128, RO);
3685                 snprintf(tt, 128, "refclock_driver_version=\"%s\"", rcsid);
3686
3687                 {
3688                         struct ctl_var *k;
3689
3690                         k = parse->kv;
3691                         while (k && !(k->flags & EOV))
3692                         {
3693                                 set_var(&out->kv_list, k->text, strlen(k->text)+1, k->flags);
3694                                 k++;
3695                         }
3696                 }
3697
3698                 out->lencode       = (u_short) strlen(outstatus);
3699                 out->p_lastcode    = outstatus;
3700         }
3701 }
3702
3703 /**===========================================================================
3704  ** processing routines
3705  **/
3706
3707 /*--------------------------------------------------
3708  * event handling - note that nominal events will also be posted
3709  * keep track of state dwelling times
3710  */
3711 static void
3712 parse_event(
3713         struct parseunit *parse,
3714         int event
3715         )
3716 {
3717         if (parse->generic->currentstatus != (u_char) event)
3718         {
3719                 parse->statetime[parse->generic->currentstatus] += current_time - parse->lastchange;
3720                 parse->lastchange              = current_time;
3721
3722                 if (parse->parse_type->cl_event)
3723                     parse->parse_type->cl_event(parse, event);
3724
3725                 if (event == CEVNT_NOMINAL)
3726                 {
3727                         NLOG(NLOG_CLOCKSTATUS)
3728                                 msyslog(LOG_INFO, "PARSE receiver #%d: SYNCHRONIZED",
3729                                         CLK_UNIT(parse->peer));
3730                 }
3731
3732                 refclock_report(parse->peer, event);
3733         }
3734 }
3735
3736 /*--------------------------------------------------
3737  * process a PARSE time sample
3738  */
3739 static void
3740 parse_process(
3741         struct parseunit *parse,
3742         parsetime_t      *parsetime
3743         )
3744 {
3745         l_fp off, rectime, reftime;
3746         double fudge;
3747
3748         /* silence warning: 'off.Ul_i.Xl_i' may be used uninitialized in this function */
3749         ZERO(off);
3750
3751         /*
3752          * check for changes in conversion status
3753          * (only one for each new status !)
3754          */
3755         if (((parsetime->parse_status & CVT_MASK) != CVT_OK) &&
3756             ((parsetime->parse_status & CVT_MASK) != CVT_NONE) &&
3757             (parse->timedata.parse_status != parsetime->parse_status))
3758         {
3759                 char buffer[400];
3760
3761                 NLOG(NLOG_CLOCKINFO) /* conditional if clause for conditional syslog */
3762                         msyslog(LOG_WARNING, "PARSE receiver #%d: conversion status \"%s\"",
3763                                 CLK_UNIT(parse->peer), parsestatus(parsetime->parse_status, buffer, sizeof(buffer)));
3764
3765                 if ((parsetime->parse_status & CVT_MASK) == CVT_FAIL)
3766                 {
3767                         /*
3768                          * tell more about the story - list time code
3769                          * there is a slight change for a race condition and
3770                          * the time code might be overwritten by the next packet
3771                          */
3772                         parsectl_t tmpctl;
3773
3774                         if (!PARSE_GETTIMECODE(parse, &tmpctl))
3775                         {
3776                                 ERR(ERR_INTERNAL)
3777                                         msyslog(LOG_ERR, "PARSE receiver #%d: parse_process: parse_timecode() FAILED", CLK_UNIT(parse->peer));
3778                         }
3779                         else
3780                         {
3781                                 ERR(ERR_BADDATA)
3782                                         msyslog(LOG_WARNING, "PARSE receiver #%d: FAILED TIMECODE: \"%s\" (check receiver configuration / wiring)",
3783                                                 CLK_UNIT(parse->peer), mkascii(buffer, sizeof buffer, tmpctl.parsegettc.parse_buffer, (unsigned)(tmpctl.parsegettc.parse_count - 1)));
3784                         }
3785                 }
3786         }
3787
3788         /*
3789          * examine status and post appropriate events
3790          */
3791         if ((parsetime->parse_status & CVT_MASK) != CVT_OK)
3792         {
3793                 /*
3794                  * got bad data - tell the rest of the system
3795                  */
3796                 switch (parsetime->parse_status & CVT_MASK)
3797                 {
3798                 case CVT_NONE:
3799                         if ((parsetime->parse_status & CVT_ADDITIONAL) &&
3800                             parse->parse_type->cl_message)
3801                                 parse->parse_type->cl_message(parse, parsetime);
3802                         /*
3803                          * save PPS information that comes piggyback
3804                          */
3805                         if (PARSE_PPS(parsetime->parse_state))
3806                           {
3807                             parse->timedata.parse_state |= PARSEB_PPS|PARSEB_S_PPS;
3808                             parse->timedata.parse_ptime  = parsetime->parse_ptime;
3809                           }
3810                         break;          /* well, still waiting - timeout is handled at higher levels */
3811
3812                 case CVT_FAIL:
3813                         if (parsetime->parse_status & CVT_BADFMT)
3814                         {
3815                                 parse_event(parse, CEVNT_BADREPLY);
3816                         }
3817                         else
3818                                 if (parsetime->parse_status & CVT_BADDATE)
3819                                 {
3820                                         parse_event(parse, CEVNT_BADDATE);
3821                                 }
3822                                 else
3823                                         if (parsetime->parse_status & CVT_BADTIME)
3824                                         {
3825                                                 parse_event(parse, CEVNT_BADTIME);
3826                                         }
3827                                         else
3828                                         {
3829                                                 parse_event(parse, CEVNT_BADREPLY); /* for the lack of something better */
3830                                         }
3831                 }
3832                 return;                 /* skip the rest - useless */
3833         }
3834
3835         /*
3836          * check for format changes
3837          * (in case somebody has swapped clocks 8-)
3838          */
3839         if (parse->lastformat != parsetime->parse_format)
3840         {
3841                 parsectl_t tmpctl;
3842
3843                 tmpctl.parseformat.parse_format = parsetime->parse_format;
3844
3845                 if (!PARSE_GETFMT(parse, &tmpctl))
3846                 {
3847                         ERR(ERR_INTERNAL)
3848                                 msyslog(LOG_ERR, "PARSE receiver #%d: parse_getfmt() FAILED", CLK_UNIT(parse->peer));
3849                 }
3850                 else
3851                 {
3852                         NLOG(NLOG_CLOCKINFO) /* conditional if clause for conditional syslog */
3853                                 msyslog(LOG_INFO, "PARSE receiver #%d: packet format \"%s\"",
3854                                         CLK_UNIT(parse->peer), tmpctl.parseformat.parse_buffer);
3855                 }
3856                 parse->lastformat = parsetime->parse_format;
3857         }
3858
3859         /*
3860          * now, any changes ?
3861          */
3862         if ((parse->timedata.parse_state ^ parsetime->parse_state) &
3863             ~(unsigned)(PARSEB_PPS|PARSEB_S_PPS))
3864         {
3865                 char tmp1[200];
3866                 char tmp2[200];
3867                 /*
3868                  * something happend - except for PPS events
3869                  */
3870
3871                 (void) parsestate(parsetime->parse_state, tmp1, sizeof(tmp1));
3872                 (void) parsestate(parse->timedata.parse_state, tmp2, sizeof(tmp2));
3873
3874                 NLOG(NLOG_CLOCKINFO) /* conditional if clause for conditional syslog */
3875                         msyslog(LOG_INFO,"PARSE receiver #%d: STATE CHANGE: %s -> %s",
3876                                 CLK_UNIT(parse->peer), tmp2, tmp1);
3877         }
3878
3879         /*
3880          * carry on PPS information if still usable
3881          */
3882         if (PARSE_PPS(parse->timedata.parse_state) && !PARSE_PPS(parsetime->parse_state))
3883         {
3884                 parsetime->parse_state |= PARSEB_PPS|PARSEB_S_PPS;
3885                 parsetime->parse_ptime  = parse->timedata.parse_ptime;
3886         }
3887
3888         /*
3889          * remember for future
3890          */
3891         parse->timedata = *parsetime;
3892
3893         /*
3894          * check to see, whether the clock did a complete powerup or lost PZF signal
3895          * and post correct events for current condition
3896          */
3897         if (PARSE_POWERUP(parsetime->parse_state))
3898         {
3899                 /*
3900                  * this is bad, as we have completely lost synchronisation
3901                  * well this is a problem with the receiver here
3902                  * for PARSE Meinberg DCF77 receivers the lost synchronisation
3903                  * is true as it is the powerup state and the time is taken
3904                  * from a crude real time clock chip
3905                  * for the PZF/GPS series this is only partly true, as
3906                  * PARSE_POWERUP only means that the pseudo random
3907                  * phase shift sequence cannot be found. this is only
3908                  * bad, if we have never seen the clock in the SYNC
3909                  * state, where the PHASE and EPOCH are correct.
3910                  * for reporting events the above business does not
3911                  * really matter, but we can use the time code
3912                  * even in the POWERUP state after having seen
3913                  * the clock in the synchronized state (PZF class
3914                  * receivers) unless we have had a telegram disruption
3915                  * after having seen the clock in the SYNC state. we
3916                  * thus require having seen the clock in SYNC state
3917                  * *after* having missed telegrams (noresponse) from
3918                  * the clock. one problem remains: we might use erroneously
3919                  * POWERUP data if the disruption is shorter than 1 polling
3920                  * interval. fortunately powerdowns last usually longer than 64
3921                  * seconds and the receiver is at least 2 minutes in the
3922                  * POWERUP or NOSYNC state before switching to SYNC
3923                  * for GPS receivers this can mean antenna problems and other causes.
3924                  * the additional grace period can be enables by a clock
3925                  * mode having the PARSE_F_POWERUPTRUST flag in cl_flag set.
3926                  */
3927                 parse_event(parse, CEVNT_FAULT);
3928                 NLOG(NLOG_CLOCKSTATUS)
3929                         ERR(ERR_BADSTATUS)
3930                         msyslog(LOG_ERR,"PARSE receiver #%d: NOT SYNCHRONIZED/RECEIVER PROBLEMS",
3931                                 CLK_UNIT(parse->peer));
3932         }
3933         else
3934         {
3935                 /*
3936                  * we have two states left
3937                  *
3938                  * SYNC:
3939                  *  this state means that the EPOCH (timecode) and PHASE
3940                  *  information has be read correctly (at least two
3941                  *  successive PARSE timecodes were received correctly)
3942                  *  this is the best possible state - full trust
3943                  *
3944                  * NOSYNC:
3945                  *  The clock should be on phase with respect to the second
3946                  *  signal, but the timecode has not been received correctly within
3947                  *  at least the last two minutes. this is a sort of half baked state
3948                  *  for PARSE Meinberg DCF77 clocks this is bad news (clock running
3949                  *  without timecode confirmation)
3950                  *  PZF 535 has also no time confirmation, but the phase should be
3951                  *  very precise as the PZF signal can be decoded
3952                  */
3953
3954                 if (PARSE_SYNC(parsetime->parse_state))
3955                 {
3956                         /*
3957                          * currently completely synchronized - best possible state
3958                          */
3959                         parse->lastsync = current_time;
3960                         clear_err(parse, ERR_BADSTATUS);
3961                 }
3962                 else
3963                 {
3964                         /*
3965                          * we have had some problems receiving the time code
3966                          */
3967                         parse_event(parse, CEVNT_PROP);
3968                         NLOG(NLOG_CLOCKSTATUS)
3969                                 ERR(ERR_BADSTATUS)
3970                                 msyslog(LOG_ERR,"PARSE receiver #%d: TIMECODE NOT CONFIRMED",
3971                                         CLK_UNIT(parse->peer));
3972                 }
3973         }
3974
3975         fudge = parse->generic->fudgetime1; /* standard RS232 Fudgefactor */
3976
3977         if (PARSE_TIMECODE(parsetime->parse_state))
3978         {
3979                 rectime = parsetime->parse_stime.fp;
3980                 off = reftime = parsetime->parse_time.fp;
3981
3982                 L_SUB(&off, &rectime); /* prepare for PPS adjustments logic */
3983
3984 #ifdef DEBUG
3985                 if (debug > 3)
3986                         printf("PARSE receiver #%d: Reftime %s, Recvtime %s - initial offset %s\n",
3987                                CLK_UNIT(parse->peer),
3988                                prettydate(&reftime),
3989                                prettydate(&rectime),
3990                                lfptoa(&off,6));
3991 #endif
3992         }
3993
3994         if (PARSE_PPS(parsetime->parse_state) && CLK_PPS(parse->peer))
3995         {
3996                 l_fp offset;
3997                 double ppsphaseadjust = parse->ppsphaseadjust;
3998
3999 #ifdef HAVE_PPSAPI
4000                 /*
4001                  * set fudge = 0.0 if already included in PPS time stamps
4002                  */
4003                 if (parse->atom.pps_params.mode & (PPS_OFFSETCLEAR|PPS_OFFSETASSERT))
4004                         {
4005                                 ppsphaseadjust = 0.0;
4006                         }
4007 #endif
4008
4009                 /*
4010                  * we have a PPS signal - much better than the RS232 stuff (we hope)
4011                  */
4012                 offset = parsetime->parse_ptime.fp;
4013
4014 #ifdef DEBUG
4015                 if (debug > 3)
4016                         printf("PARSE receiver #%d: PPStime %s\n",
4017                                 CLK_UNIT(parse->peer),
4018                                 prettydate(&offset));
4019 #endif
4020                 if (PARSE_TIMECODE(parsetime->parse_state))
4021                 {
4022                         if (M_ISGEQ(off.l_i, off.l_uf, -1, 0x80000000) &&
4023                             M_ISGEQ(0, 0x7fffffff, off.l_i, off.l_uf))
4024                         {
4025                                 fudge = ppsphaseadjust; /* pick PPS fudge factor */
4026
4027                                 /*
4028                                  * RS232 offsets within [-0.5..0.5[ - take PPS offsets
4029                                  */
4030
4031                                 if (parse->parse_type->cl_flags & PARSE_F_PPSONSECOND)
4032                                 {
4033                                         reftime = off = offset;
4034                                         if (reftime.l_uf & 0x80000000)
4035                                                 reftime.l_ui++;
4036                                         reftime.l_uf = 0;
4037
4038
4039                                         /*
4040                                          * implied on second offset
4041                                          */
4042                                         off.l_uf = ~off.l_uf; /* map [0.5..1[ -> [-0.5..0[ */
4043                                         off.l_i = (off.l_uf & 0x80000000) ? -1 : 0; /* sign extend */
4044                                 }
4045                                 else
4046                                 {
4047                                         /*
4048                                          * time code describes pulse
4049                                          */
4050                                         reftime = off = parsetime->parse_time.fp;
4051
4052                                         L_SUB(&off, &offset); /* true offset */
4053                                 }
4054                         }
4055                         /*
4056                          * take RS232 offset when PPS when out of bounds
4057                          */
4058                 }
4059                 else
4060                 {
4061                         fudge = ppsphaseadjust; /* pick PPS fudge factor */
4062                         /*
4063                          * Well, no time code to guide us - assume on second pulse
4064                          * and pray, that we are within [-0.5..0.5[
4065                          */
4066                         off = offset;
4067                         reftime = offset;
4068                         if (reftime.l_uf & 0x80000000)
4069                                 reftime.l_ui++;
4070                         reftime.l_uf = 0;
4071                         /*
4072                          * implied on second offset
4073                          */
4074                         off.l_uf = ~off.l_uf; /* map [0.5..1[ -> [-0.5..0[ */
4075                         off.l_i = (off.l_uf & 0x80000000) ? -1 : 0; /* sign extend */
4076                 }
4077         }
4078         else
4079         {
4080                 if (!PARSE_TIMECODE(parsetime->parse_state))
4081                 {
4082                         /*
4083                          * Well, no PPS, no TIMECODE, no more work ...
4084                          */
4085                         if ((parsetime->parse_status & CVT_ADDITIONAL) &&
4086                             parse->parse_type->cl_message)
4087                                 parse->parse_type->cl_message(parse, parsetime);
4088                         return;
4089                 }
4090         }
4091
4092 #ifdef DEBUG
4093         if (debug > 3)
4094                 printf("PARSE receiver #%d: Reftime %s, Recvtime %s - final offset %s\n",
4095                         CLK_UNIT(parse->peer),
4096                         prettydate(&reftime),
4097                         prettydate(&rectime),
4098                         lfptoa(&off,6));
4099 #endif
4100
4101
4102         rectime = reftime;
4103         L_SUB(&rectime, &off);  /* just to keep the ntp interface happy */
4104
4105 #ifdef DEBUG
4106         if (debug > 3)
4107                 printf("PARSE receiver #%d: calculated Reftime %s, Recvtime %s\n",
4108                         CLK_UNIT(parse->peer),
4109                         prettydate(&reftime),
4110                         prettydate(&rectime));
4111 #endif
4112
4113         if ((parsetime->parse_status & CVT_ADDITIONAL) &&
4114             parse->parse_type->cl_message)
4115                 parse->parse_type->cl_message(parse, parsetime);
4116
4117         if (PARSE_SYNC(parsetime->parse_state))
4118         {
4119                 /*
4120                  * log OK status
4121                  */
4122                 parse_event(parse, CEVNT_NOMINAL);
4123         }
4124
4125         clear_err(parse, ERR_BADIO);
4126         clear_err(parse, ERR_BADDATA);
4127         clear_err(parse, ERR_NODATA);
4128         clear_err(parse, ERR_INTERNAL);
4129
4130         /*
4131          * and now stick it into the clock machine
4132          * samples are only valid iff lastsync is not too old and
4133          * we have seen the clock in sync at least once
4134          * after the last time we didn't see an expected data telegram
4135          * at startup being not in sync is also bad just like
4136          * POWERUP state unless PARSE_F_POWERUPTRUST is set
4137          * see the clock states section above for more reasoning
4138          */
4139         if (((current_time - parse->lastsync) > parse->maxunsync)           ||
4140             (parse->lastsync < parse->lastmissed)                           ||
4141             ((parse->lastsync == 0) && !PARSE_SYNC(parsetime->parse_state)) ||
4142             (((parse->parse_type->cl_flags & PARSE_F_POWERUPTRUST) == 0) &&
4143              PARSE_POWERUP(parsetime->parse_state)))
4144         {
4145                 parse->generic->leap = LEAP_NOTINSYNC;
4146                 parse->lastsync = 0;    /* wait for full sync again */
4147         }
4148         else
4149         {
4150                 if (PARSE_LEAPADD(parsetime->parse_state))
4151                 {
4152                         /*
4153                          * we pick this state also for time code that pass leap warnings
4154                          * without direction information (as earth is currently slowing
4155                          * down).
4156                          */
4157                         parse->generic->leap = (parse->flags & PARSE_LEAP_DELETE) ? LEAP_DELSECOND : LEAP_ADDSECOND;
4158                 }
4159                 else
4160                     if (PARSE_LEAPDEL(parsetime->parse_state))
4161                     {
4162                             parse->generic->leap = LEAP_DELSECOND;
4163                     }
4164                     else
4165                     {
4166                             parse->generic->leap = LEAP_NOWARNING;
4167                     }
4168         }
4169
4170         if (parse->generic->leap != LEAP_NOTINSYNC)
4171         {
4172                 /*
4173                  * only good/trusted samples are interesting
4174                  */
4175 #ifdef DEBUG
4176                 if (debug > 2)
4177                         {
4178                                        printf("PARSE receiver #%d: refclock_process_offset(reftime=%s, rectime=%s, Fudge=%f)\n",
4179                                        CLK_UNIT(parse->peer),
4180                                        prettydate(&reftime),
4181                                        prettydate(&rectime),
4182                                        fudge);
4183                         }
4184 #endif
4185                 parse->generic->lastref = reftime;
4186
4187                 refclock_process_offset(parse->generic, reftime, rectime, fudge);
4188
4189 #ifdef HAVE_PPSAPI
4190                 /*
4191                  * pass PPS information on to PPS clock
4192                  */
4193                 if (PARSE_PPS(parsetime->parse_state) && CLK_PPS(parse->peer))
4194                         {
4195                                 parse->peer->flags |= (FLAG_PPS | FLAG_TSTAMP_PPS);
4196                                 parse_hardpps(parse, PARSE_HARDPPS_ENABLE);
4197                         }
4198 #endif
4199         } else {
4200                 parse_hardpps(parse, PARSE_HARDPPS_DISABLE);
4201                 parse->peer->flags &= ~(FLAG_PPS | FLAG_TSTAMP_PPS);
4202         }
4203
4204         /*
4205          * ready, unless the machine wants a sample or
4206          * we are in fast startup mode (peer->dist > MAXDISTANCE)
4207          */
4208         if (!parse->pollneeddata && parse->peer->disp <= MAXDISTANCE)
4209             return;
4210
4211         parse->pollneeddata = 0;
4212
4213         parse->timedata.parse_state &= ~(unsigned)(PARSEB_PPS|PARSEB_S_PPS);
4214
4215         refclock_receive(parse->peer);
4216 }
4217
4218 /**===========================================================================
4219  ** special code for special clocks
4220  **/
4221
4222 static void
4223 mk_utcinfo(
4224            char *t,  // pointer to the output string buffer
4225            int wnt,
4226            int wnlsf,
4227            int dn,
4228            int dtls,
4229            int dtlsf,
4230            int size  // size of the output string buffer
4231            )
4232 {
4233         /*
4234          * The week number transmitted by the GPS satellites for the leap date
4235          * is truncated to 8 bits only. If the nearest leap second date is off
4236          * the current date by more than +/- 128 weeks then conversion to a
4237          * calendar date is ambiguous. On the other hand, if a leap second is
4238          * currently being announced (i.e. dtlsf != dtls) then the week number
4239          * wnlsf is close enough, and we can unambiguously determine the date
4240          * for which the leap second is scheduled.
4241          */
4242         if ( dtlsf != dtls )
4243         {
4244                 time_t t_ls;
4245                 struct tm *tm;
4246                 int n = 0;
4247
4248                 if (wnlsf < GPSWRAP)
4249                         wnlsf += GPSWEEKS;
4250
4251                 if (wnt < GPSWRAP)
4252                         wnt += GPSWEEKS;
4253
4254                 t_ls = (time_t) wnlsf * SECSPERWEEK
4255                         + (time_t) dn * SECSPERDAY
4256                         + GPS_SEC_BIAS - 1;
4257
4258                 tm = gmtime( &t_ls );
4259                 if (tm == NULL)  // gmtime() failed
4260                 {
4261                         snprintf( t, size, "** (gmtime() failed in mk_utcinfo())" );
4262                         return;
4263                 }
4264
4265                 n += snprintf( t, size, "UTC offset transition from %is to %is due to leap second %s",
4266                                 dtls, dtlsf, ( dtls < dtlsf ) ? "insertion" : "deletion" );
4267                 n += snprintf( t + n, size - n, " at UTC midnight at the end of %s, %04i-%02i-%02i",
4268                                 daynames[tm->tm_wday], tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday );
4269         }
4270         else
4271                 snprintf( t, size, "UTC offset parameter: %is, no leap second announced.\n", dtls );
4272
4273 }
4274
4275 #ifdef CLOCK_MEINBERG
4276 /**===========================================================================
4277  ** Meinberg GPS receiver support
4278  **/
4279
4280 /*------------------------------------------------------------
4281  * gps16x_message - process messages from Meinberg GPS receiver
4282  */
4283 static void
4284 gps16x_message(
4285                struct parseunit *parse,
4286                parsetime_t      *parsetime
4287                )
4288 {
4289         if (parse->timedata.parse_msglen && parsetime->parse_msg[0] == SOH)
4290         {
4291                 GPS_MSG_HDR header;
4292                 unsigned char *bufp = (unsigned char *)parsetime->parse_msg + 1;
4293
4294 #ifdef DEBUG
4295                 if (debug > 2)
4296                 {
4297                         char msgbuffer[600];
4298
4299                         mkreadable(msgbuffer, sizeof(msgbuffer), (char *)parsetime->parse_msg, parsetime->parse_msglen, 1);
4300                         printf("PARSE receiver #%d: received message (%d bytes) >%s<\n",
4301                                 CLK_UNIT(parse->peer),
4302                                 parsetime->parse_msglen,
4303                                 msgbuffer);
4304                 }
4305 #endif
4306                 get_mbg_header(&bufp, &header);
4307                 if (header.hdr_csum == mbg_csum(parsetime->parse_msg + 1, 6) &&
4308                     (header.len == 0 ||
4309                      (header.len < sizeof(parsetime->parse_msg) &&
4310                       header.data_csum == mbg_csum(bufp, header.len))))
4311                 {
4312                         /*
4313                          * clean message
4314                          */
4315                         switch (header.cmd)
4316                         {
4317                         case GPS_SW_REV:
4318                                 {
4319                                         char buffer[64];
4320                                         SW_REV gps_sw_rev;
4321
4322                                         get_mbg_sw_rev(&bufp, &gps_sw_rev);
4323                                         snprintf(buffer, sizeof(buffer), "meinberg_gps_version=\"%x.%02x%s%s\"",
4324                                                 (gps_sw_rev.code >> 8) & 0xFF,
4325                                                 gps_sw_rev.code & 0xFF,
4326                                                 gps_sw_rev.name[0] ? " " : "",
4327                                                 gps_sw_rev.name);
4328                                         set_var(&parse->kv, buffer, strlen(buffer)+1, RO|DEF);
4329                                 }
4330                         break;
4331
4332                         case GPS_BVAR_STAT:
4333                                 {
4334                                         static struct state
4335                                         {
4336                                                 BVAR_STAT flag; /* status flag */
4337                                                 const char *string; /* bit name */
4338                                         } states[] =
4339                                           {
4340                                                   { BVAR_CFGH_INVALID,     "Configuration/Health" },
4341                                                   { BVAR_ALM_NOT_COMPLETE, "Almanachs" },
4342                                                   { BVAR_UTC_INVALID,      "UTC Correction" },
4343                                                   { BVAR_IONO_INVALID,     "Ionospheric Correction" },
4344                                                   { BVAR_RCVR_POS_INVALID, "Receiver Position" },
4345                                                   { 0, "" }
4346                                           };
4347                                         BVAR_STAT status;
4348                                         struct state *s = states;
4349                                         char buffer[512];
4350                                         char *p, *b;
4351
4352                                         status = (BVAR_STAT) get_lsb_short(&bufp);
4353                                         p = b = buffer;
4354                                         p = ap(buffer, sizeof(buffer), p,
4355                                             "meinberg_gps_status=\"[0x%04x] ",
4356                                             status);
4357
4358                                         if (status)
4359                                         {
4360                                                 p = ap(buffer, sizeof(buffer), p, "incomplete buffered data: ");
4361                                                 b = p;
4362                                                 while (s->flag)
4363                                                 {
4364                                                         if (status & s->flag)
4365                                                         {
4366                                                                 if (p != b)
4367                                                                 {
4368                                                                         p = ap(buffer, sizeof(buffer), p, ", ");
4369                                                                 }
4370
4371                                                                 p = ap(buffer, sizeof(buffer), p, "%s", (const char *)s->string);
4372                                                         }
4373                                                         s++;
4374                                                 }
4375                                                 p = ap(buffer, sizeof(buffer), p, "\"");
4376                                         }
4377                                         else
4378                                         {
4379                                                 p = ap(buffer, sizeof(buffer), p, "<all buffered data complete>\"");
4380                                         }
4381
4382                                         set_var(&parse->kv, buffer, strlen(buffer)+1, RO|DEF);
4383                                 }
4384                         break;
4385
4386                         case GPS_POS_XYZ:
4387                                 {
4388                                         XYZ xyz;
4389                                         char buffer[256];
4390
4391                                         get_mbg_xyz(&bufp, xyz);
4392                                         snprintf(buffer, sizeof(buffer), "gps_position(XYZ)=\"%s m, %s m, %s m\"",
4393                                                 mfptoa(xyz[XP].l_ui, xyz[XP].l_uf, 1),
4394                                                 mfptoa(xyz[YP].l_ui, xyz[YP].l_uf, 1),
4395                                                 mfptoa(xyz[ZP].l_ui, xyz[ZP].l_uf, 1));
4396
4397                                         set_var(&parse->kv, buffer, sizeof(buffer), RO|DEF);
4398                                 }
4399                         break;
4400
4401                         case GPS_POS_LLA:
4402                                 {
4403                                         LLA lla;
4404                                         char buffer[256];
4405
4406                                         get_mbg_lla(&bufp, lla);
4407
4408                                         snprintf(buffer, sizeof(buffer), "gps_position(LLA)=\"%s deg, %s deg, %s m\"",
4409                                                 mfptoa(lla[LAT].l_ui, lla[LAT].l_uf, 4),
4410                                                 mfptoa(lla[LON].l_ui, lla[LON].l_uf, 4),
4411                                                 mfptoa(lla[ALT].l_ui, lla[ALT].l_uf, 1));
4412
4413                                         set_var(&parse->kv, buffer, sizeof(buffer), RO|DEF);
4414                                 }
4415                         break;
4416
4417                         case GPS_TZDL:
4418                                 break;
4419
4420                         case GPS_PORT_PARM:
4421                                 break;
4422
4423                         case GPS_SYNTH:
4424                                 break;
4425
4426                         case GPS_ANT_INFO:
4427                                 {
4428                                         ANT_INFO antinfo;
4429                                         char buffer[512];
4430                                         char *p, *q;
4431
4432                                         get_mbg_antinfo(&bufp, &antinfo);
4433                                         p = buffer;
4434                                         p = ap(buffer, sizeof(buffer), p, "meinberg_antenna_status=\"");
4435                                         switch (antinfo.status)
4436                                         {
4437                                         case ANT_INVALID: // No other fields valid since antenna has not yet been disconnected
4438                                                 p = ap(buffer, sizeof(buffer),
4439                                                     p, "<OK>");
4440                                                 break;
4441
4442                                         case ANT_DISCONN: // Antenna is disconnected, tm_reconn and delta_t not yet set
4443                                                 q = ap(buffer, sizeof(buffer),
4444                                                     p, "DISCONNECTED since ");
4445                                                 NLOG(NLOG_CLOCKSTATUS)
4446                                                         ERR(ERR_BADSTATUS)
4447                                                         msyslog(LOG_ERR,"PARSE receiver #%d: ANTENNA FAILURE: %s",
4448                                                                 CLK_UNIT(parse->peer), p);
4449
4450                                                 p = q;
4451                                                 mbg_tm_str(&p, &antinfo.tm_disconn, BUFFER_SIZE(buffer, p), 0);
4452                                                 *p = '\0';
4453                                                 break;
4454
4455                                         case ANT_RECONN: // Antenna had been disconnect, but receiver sync. after reconnect, so all fields valid
4456                                                 p = ap(buffer, sizeof(buffer),
4457                                                     p, "SYNC AFTER RECONNECT on ");
4458                                                 mbg_tm_str(&p, &antinfo.tm_reconn, BUFFER_SIZE(buffer, p), 0);
4459                                                 p = ap(buffer, sizeof(buffer),
4460                                                         p, ", clock offset at reconnect %c%ld.%07ld s, disconnect time ",
4461                                                         (antinfo.delta_t < 0) ? '-' : '+',
4462                                                         (long) ABS(antinfo.delta_t) / 10000,
4463                                                         (long) ABS(antinfo.delta_t) % 10000);
4464                                                 mbg_tm_str(&p, &antinfo.tm_disconn, BUFFER_SIZE(buffer, p), 0);
4465                                                 *p = '\0';
4466                                                 break;
4467
4468                                         default:
4469                                                 p = ap(buffer, sizeof(buffer),
4470                                                     p, "bad status 0x%04x",
4471                                                     antinfo.status);
4472                                                 break;
4473                                         }
4474
4475                                         p = ap(buffer, sizeof(buffer), p, "\"");
4476
4477                                         set_var(&parse->kv, buffer, sizeof(buffer), RO|DEF);
4478                                 }
4479                         break;
4480
4481                         case GPS_UCAP:
4482                                 break;
4483
4484                         case GPS_CFGH:
4485                                 {
4486                                         CFGH cfgh;
4487                                         char buffer[512];
4488                                         char *p;
4489
4490                                         get_mbg_cfgh(&bufp, &cfgh);
4491                                         if (cfgh.valid)
4492                                         {
4493                                                 const char *cp;
4494                                                 uint16_t tmp_val;
4495                                                 int i;
4496
4497                                                 p = buffer;
4498                                                 p = ap(buffer, sizeof(buffer),
4499                                                     p, "gps_tot_51=\"");
4500                                                 mbg_tgps_str(&p, &cfgh.tot_51, BUFFER_SIZE(buffer, p));
4501                                                 p = ap(buffer, sizeof(buffer),
4502                                                     p, "\"");
4503                                                 set_var(&parse->kv, buffer, sizeof(buffer), RO|COND_DEF);
4504
4505                                                 p = buffer;
4506                                                 p = ap(buffer, sizeof(buffer),
4507                                                     p, "gps_tot_63=\"");
4508                                                 mbg_tgps_str(&p, &cfgh.tot_63, BUFFER_SIZE(buffer, p));
4509                                                 p = ap(buffer, sizeof(buffer),
4510                                                     p, "\"");
4511                                                 set_var(&parse->kv, buffer, sizeof(buffer), RO|COND_DEF);
4512
4513                                                 p = buffer;
4514                                                 p = ap(buffer, sizeof(buffer),
4515                                                     p, "gps_t0a=\"");
4516                                                 mbg_tgps_str(&p, &cfgh.t0a, BUFFER_SIZE(buffer, p));
4517                                                 p = ap(buffer, sizeof(buffer),
4518                                                     p, "\"");
4519                                                 set_var(&parse->kv, buffer, sizeof(buffer), RO|COND_DEF);
4520
4521                                                 for (i = 0; i < N_SVNO_GPS; i++)
4522                                                 {
4523                                                         p = buffer;
4524                                                         p = ap(buffer, sizeof(buffer), p, "sv_info[%d]=\"PRN%d", i, i + N_SVNO_GPS);
4525
4526                                                         tmp_val = cfgh.health[i];  /* a 6 bit SV health code */
4527                                                         p = ap(buffer, sizeof(buffer), p, "; health=0x%02x (", tmp_val);
4528                                                         /* "All Ones" has a special meaning" */
4529                                                         if (tmp_val == 0x3F) /* satellite is unusable or doesn't even exist */
4530                                                                 cp = "SV UNAVAILABLE";
4531                                                         else {
4532                                                                 /* The MSB contains a summary of the 3 MSBs of the 8 bit health code,
4533                                                                  * indicating if the data sent by the satellite is OK or not. */
4534                                                                 p = ap(buffer, sizeof(buffer), p, "DATA %s, ", (tmp_val & 0x20) ? "BAD" : "OK" );
4535
4536                                                                 /* The 5 LSBs contain the status of the different signals sent by the satellite. */
4537                                                                 switch (tmp_val & 0x1F)
4538                                                                 {
4539                                                                         case 0x00: cp = "SIGNAL OK";              break;
4540                                                                         /* codes 0x01 through 0x1B indicate that one or more
4541                                                                          * specific signal components are weak or dead.
4542                                                                          * We don't decode this here in detail. */
4543                                                                         case 0x1C: cp = "SV IS TEMP OUT";         break;
4544                                                                         case 0x1D: cp = "SV WILL BE TEMP OUT";    break;
4545                                                                         default:   cp = "TRANSMISSION PROBLEMS";  break;
4546                                                                 }
4547                                                         }
4548                                                         p = ap(buffer, sizeof(buffer), p, "%s)", cp );
4549
4550                                                         tmp_val = cfgh.cfg[i];  /* a 4 bit SV configuration/type code */
4551                                                         p = ap(buffer, sizeof(buffer), p, "; cfg=0x%02x (", tmp_val);
4552                                                         switch (tmp_val & 0x7)
4553                                                         {
4554                                                                 case 0x00:  cp = "(reserved)";        break;
4555                                                                 case 0x01:  cp = "BLOCK II/IIA/IIR";  break;
4556                                                                 case 0x02:  cp = "BLOCK IIR-M";       break;
4557                                                                 case 0x03:  cp = "BLOCK IIF";         break;
4558                                                                 case 0x04:  cp = "BLOCK III";         break;
4559                                                                 default:   cp = "unknown SV type";   break;
4560                                                         }
4561                                                         p = ap(buffer, sizeof(buffer), p, "%s", cp );
4562                                                         if (tmp_val & 0x08)  /* A-S is on, P-code is encrypted */
4563                                                                 p = ap( buffer, sizeof(buffer), p, ", A-S on" );
4564
4565                                                         p = ap(buffer, sizeof(buffer), p, ")\"");
4566                                                         set_var(&parse->kv, buffer, sizeof(buffer), RO|COND_DEF);
4567                                                 }
4568                                         }
4569                                 }
4570                         break;
4571
4572                         case GPS_ALM:
4573                                 break;
4574
4575                         case GPS_EPH:
4576                                 break;
4577
4578                         case GPS_UTC:
4579                                 {
4580                                         UTC utc;
4581                                         char buffer[512];
4582                                         char *p;
4583
4584                                         p = buffer;
4585
4586                                         get_mbg_utc(&bufp, &utc);
4587
4588                                         if (utc.valid)
4589                                         {
4590                                                 p = ap(buffer, sizeof(buffer), p, "gps_utc_correction=\"");
4591                                                 mk_utcinfo(p, utc.t0t.wn, utc.WNlsf, utc.DNt, utc.delta_tls, utc.delta_tlsf, BUFFER_SIZE(buffer, p));
4592                                                 p += strlen(p);
4593                                                 p = ap(buffer, sizeof(buffer), p, "\"");
4594                                         }
4595                                         else
4596                                         {
4597                                                 p = ap(buffer, sizeof(buffer), p, "gps_utc_correction=\"<NO UTC DATA>\"");
4598                                         }
4599                                         set_var(&parse->kv, buffer, sizeof(buffer), RO|DEF);
4600                                 }
4601                         break;
4602
4603                         case GPS_IONO:
4604                                 break;
4605
4606                         case GPS_ASCII_MSG:
4607                                 {
4608                                         ASCII_MSG gps_ascii_msg;
4609                                         char buffer[128];
4610
4611                                         get_mbg_ascii_msg(&bufp, &gps_ascii_msg);
4612
4613                                         if (gps_ascii_msg.valid)
4614                                                 {
4615                                                         char buffer1[128];
4616                                                         mkreadable(buffer1, sizeof(buffer1), gps_ascii_msg.s, strlen(gps_ascii_msg.s), (int)0);
4617
4618                                                         snprintf(buffer, sizeof(buffer), "gps_message=\"%s\"", buffer1);
4619                                                 }
4620                                         else
4621                                                 snprintf(buffer, sizeof(buffer), "gps_message=<NONE>");
4622
4623                                         set_var(&parse->kv, buffer, sizeof(buffer), RO|DEF);
4624                                 }
4625
4626                         break;
4627
4628                         default:
4629                                 break;
4630                         }
4631                 }
4632                 else
4633                 {
4634                         msyslog(LOG_DEBUG, "PARSE receiver #%d: gps16x_message: message checksum error: hdr_csum = 0x%x (expected 0x%x), "
4635                                            "data_len = %d, data_csum = 0x%x (expected 0x%x)",
4636                                 CLK_UNIT(parse->peer),
4637                                 header.hdr_csum, mbg_csum(parsetime->parse_msg + 1, 6),
4638                                 header.len,
4639                                 header.data_csum, mbg_csum(bufp, (unsigned)((header.len < sizeof(parsetime->parse_msg)) ? header.len : 0)));
4640                 }
4641         }
4642
4643         return;
4644 }
4645
4646 /*------------------------------------------------------------
4647  * gps16x_poll - query the reciver peridically
4648  */
4649 static void
4650 gps16x_poll(
4651             struct peer *peer
4652             )
4653 {
4654         struct parseunit *parse = peer->procptr->unitptr;
4655
4656         static GPS_MSG_HDR sequence[] =
4657         {
4658                 { GPS_SW_REV,          0, 0, 0 },
4659                 { GPS_BVAR_STAT,       0, 0, 0 },
4660                 { GPS_UTC,             0, 0, 0 },
4661                 { GPS_ASCII_MSG,       0, 0, 0 },
4662                 { GPS_ANT_INFO,        0, 0, 0 },
4663                 { GPS_CFGH,            0, 0, 0 },
4664                 { GPS_POS_XYZ,         0, 0, 0 },
4665                 { GPS_POS_LLA,         0, 0, 0 },
4666                 { (unsigned short)~0,  0, 0, 0 }
4667         };
4668
4669         int rtc;
4670         unsigned char cmd_buffer[64];
4671         unsigned char *outp = cmd_buffer;
4672         GPS_MSG_HDR *header;
4673
4674         if (((poll_info_t *)parse->parse_type->cl_data)->rate)
4675         {
4676                 parse->peer->procptr->nextaction = current_time + ((poll_info_t *)parse->parse_type->cl_data)->rate;
4677         }
4678
4679         if (sequence[parse->localstate].cmd == (unsigned short)~0)
4680                 parse->localstate = 0;
4681
4682         header = sequence + parse->localstate++;
4683
4684         *outp++ = SOH;          /* start command */
4685
4686         put_mbg_header(&outp, header);
4687         outp = cmd_buffer + 1;
4688
4689         header->hdr_csum = (short)mbg_csum(outp, 6);
4690         put_mbg_header(&outp, header);
4691
4692 #ifdef DEBUG
4693         if (debug > 2)
4694         {
4695                 char buffer[128];
4696
4697                 mkreadable(buffer, sizeof(buffer), (char *)cmd_buffer, (unsigned)(outp - cmd_buffer), 1);
4698                 printf("PARSE receiver #%d: transmitted message #%ld (%d bytes) >%s<\n",
4699                        CLK_UNIT(parse->peer),
4700                        parse->localstate - 1,
4701                        (int)(outp - cmd_buffer),
4702                        buffer);
4703         }
4704 #endif
4705
4706         rtc = (int) write(parse->generic->io.fd, cmd_buffer, (unsigned long)(outp - cmd_buffer));
4707
4708         if (rtc < 0)
4709         {
4710                 ERR(ERR_BADIO)
4711                         msyslog(LOG_ERR, "PARSE receiver #%d: gps16x_poll: failed to send cmd to clock: %m", CLK_UNIT(parse->peer));
4712         }
4713         else
4714         if (rtc != outp - cmd_buffer)
4715         {
4716                 ERR(ERR_BADIO)
4717                         msyslog(LOG_ERR, "PARSE receiver #%d: gps16x_poll: failed to send cmd incomplete (%d of %d bytes sent)", CLK_UNIT(parse->peer), rtc, (int)(outp - cmd_buffer));
4718         }
4719
4720         clear_err(parse, ERR_BADIO);
4721         return;
4722 }
4723
4724 /*--------------------------------------------------
4725  * init routine - setup timer
4726  */
4727 static int
4728 gps16x_poll_init(
4729         struct parseunit *parse
4730         )
4731 {
4732         if (((poll_info_t *)parse->parse_type->cl_data)->rate)
4733         {
4734                 parse->peer->procptr->action = gps16x_poll;
4735                 gps16x_poll(parse->peer);
4736         }
4737
4738         return 0;
4739 }
4740
4741 #else
4742 static void
4743 gps16x_message(
4744                struct parseunit *parse,
4745                parsetime_t      *parsetime
4746                )
4747 {}
4748 static int
4749 gps16x_poll_init(
4750         struct parseunit *parse
4751         )
4752 {
4753         return 1;
4754 }
4755 #endif /* CLOCK_MEINBERG */
4756
4757 /**===========================================================================
4758  ** clock polling support
4759  **/
4760
4761 /*--------------------------------------------------
4762  * direct poll routine
4763  */
4764 static void
4765 poll_dpoll(
4766         struct parseunit *parse
4767         )
4768 {
4769         long rtc;
4770         const char *ps = ((poll_info_t *)parse->parse_type->cl_data)->string;
4771         long ct = ((poll_info_t *)parse->parse_type->cl_data)->count;
4772
4773         rtc = write(parse->generic->io.fd, ps, ct);
4774         if (rtc < 0)
4775         {
4776                 ERR(ERR_BADIO)
4777                         msyslog(LOG_ERR, "PARSE receiver #%d: poll_dpoll: failed to send cmd to clock: %m", CLK_UNIT(parse->peer));
4778         }
4779         else
4780             if (rtc != ct)
4781             {
4782                     ERR(ERR_BADIO)
4783                             msyslog(LOG_ERR, "PARSE receiver #%d: poll_dpoll: failed to send cmd incomplete (%ld of %ld bytes sent)", CLK_UNIT(parse->peer), rtc, ct);
4784             }
4785         clear_err(parse, ERR_BADIO);
4786 }
4787
4788 /*--------------------------------------------------
4789  * periodic poll routine
4790  */
4791 static void
4792 poll_poll(
4793         struct peer *peer
4794         )
4795 {
4796         struct parseunit *parse = peer->procptr->unitptr;
4797
4798         if (parse->parse_type->cl_poll)
4799                 parse->parse_type->cl_poll(parse);
4800
4801         if (((poll_info_t *)parse->parse_type->cl_data)->rate)
4802         {
4803                 parse->peer->procptr->nextaction = current_time + ((poll_info_t *)parse->parse_type->cl_data)->rate;
4804         }
4805 }
4806
4807 /*--------------------------------------------------
4808  * init routine - setup timer
4809  */
4810 static int
4811 poll_init(
4812         struct parseunit *parse
4813         )
4814 {
4815         if (((poll_info_t *)parse->parse_type->cl_data)->rate)
4816         {
4817                 parse->peer->procptr->action = poll_poll;
4818                 poll_poll(parse->peer);
4819         }
4820
4821         return 0;
4822 }
4823
4824 /**===========================================================================
4825  ** Trimble support
4826  **/
4827
4828 /*-------------------------------------------------------------
4829  * trimble TAIP init routine - setup EOL and then do poll_init.
4830  */
4831 static int
4832 trimbletaip_init(
4833         struct parseunit *parse
4834         )
4835 {
4836 #ifdef HAVE_TERMIOS
4837         struct termios tio;
4838 #endif
4839 #ifdef HAVE_SYSV_TTYS
4840         struct termio tio;
4841 #endif
4842         /*
4843          * configure terminal line for trimble receiver
4844          */
4845         if (TTY_GETATTR(parse->generic->io.fd, &tio) == -1)
4846         {
4847                 msyslog(LOG_ERR, "PARSE receiver #%d: trimbletaip_init: tcgetattr(fd, &tio): %m", CLK_UNIT(parse->peer));
4848                 return 0;
4849         }
4850         else
4851         {
4852                 tio.c_cc[VEOL] = TRIMBLETAIP_EOL;
4853
4854                 if (TTY_SETATTR(parse->generic->io.fd, &tio) == -1)
4855                 {
4856                         msyslog(LOG_ERR, "PARSE receiver #%d: trimbletaip_init: tcsetattr(fd, &tio): %m", CLK_UNIT(parse->peer));
4857                         return 0;
4858                 }
4859         }
4860         return poll_init(parse);
4861 }
4862
4863 /*--------------------------------------------------
4864  * trimble TAIP event routine - reset receiver upon data format trouble
4865  */
4866 static const char *taipinit[] = {
4867         ">FPV00000000<",
4868         ">SRM;ID_FLAG=F;CS_FLAG=T;EC_FLAG=F;FR_FLAG=T;CR_FLAG=F<",
4869         ">FTM00020001<",
4870         (char *)0
4871 };
4872
4873 static void
4874 trimbletaip_event(
4875         struct parseunit *parse,
4876         int event
4877         )
4878 {
4879         switch (event)
4880         {
4881             case CEVNT_BADREPLY:        /* reset on garbled input */
4882             case CEVNT_TIMEOUT:         /* reset on no input */
4883                     {
4884                             const char **iv;
4885
4886                             iv = taipinit;
4887                             while (*iv)
4888                             {
4889                                     int rtc = (int) write(parse->generic->io.fd, *iv, strlen(*iv));
4890                                     if (rtc < 0)
4891                                     {
4892                                             msyslog(LOG_ERR, "PARSE receiver #%d: trimbletaip_event: failed to send cmd to clock: %m", CLK_UNIT(parse->peer));
4893                                             return;
4894                                     }
4895                                     else
4896                                     {
4897                                             if (rtc != (int)strlen(*iv))
4898                                             {
4899                                                     msyslog(LOG_ERR, "PARSE receiver #%d: trimbletaip_event: failed to send cmd incomplete (%d of %d bytes sent)",
4900                                                             CLK_UNIT(parse->peer), rtc, (int)strlen(*iv));
4901                                                     return;
4902                                             }
4903                                     }
4904                                     iv++;
4905                             }
4906
4907                             NLOG(NLOG_CLOCKINFO)
4908                                     ERR(ERR_BADIO)
4909                                     msyslog(LOG_ERR, "PARSE receiver #%d: trimbletaip_event: RECEIVER INITIALIZED",
4910                                             CLK_UNIT(parse->peer));
4911                     }
4912                     break;
4913
4914             default:                    /* ignore */
4915                 break;
4916         }
4917 }
4918
4919 /*
4920  * This driver supports the Trimble SVee Six Plus GPS receiver module.
4921  * It should support other Trimble receivers which use the Trimble Standard
4922  * Interface Protocol (see below).
4923  *
4924  * The module has a serial I/O port for command/data and a 1 pulse-per-second
4925  * output, about 1 microsecond wide. The leading edge of the pulse is
4926  * coincident with the change of the GPS second. This is the same as
4927  * the change of the UTC second +/- ~1 microsecond. Some other clocks
4928  * specifically use a feature in the data message as a timing reference, but
4929  * the SVee Six Plus does not do this. In fact there is considerable jitter
4930  * on the timing of the messages, so this driver only supports the use
4931  * of the PPS pulse for accurate timing. Where it is determined that
4932  * the offset is way off, when first starting up ntpd for example,
4933  * the timing of the data stream is used until the offset becomes low enough
4934  * (|offset| < CLOCK_MAX), at which point the pps offset is used.
4935  *
4936  * It can use either option for receiving PPS information - the 'ppsclock'
4937  * stream pushed onto the serial data interface to timestamp the Carrier
4938  * Detect interrupts, where the 1PPS connects to the CD line. This only
4939  * works on SunOS 4.1.x currently. To select this, define PPSPPS in
4940  * Config.local. The other option is to use a pulse-stretcher/level-converter
4941  * to convert the PPS pulse into a RS232 start pulse & feed this into another
4942  * tty port. To use this option, define PPSCLK in Config.local. The pps input,
4943  * by whichever method, is handled in ntp_loopfilter.c
4944  *
4945  * The receiver uses a serial message protocol called Trimble Standard
4946  * Interface Protocol (it can support others but this driver only supports
4947  * TSIP). Messages in this protocol have the following form:
4948  *
4949  * <DLE><id> ... <data> ... <DLE><ETX>
4950  *
4951  * Any bytes within the <data> portion of value 10 hex (<DLE>) are doubled
4952  * on transmission and compressed back to one on reception. Otherwise
4953  * the values of data bytes can be anything. The serial interface is RS-422
4954  * asynchronous using 9600 baud, 8 data bits with odd party (**note** 9 bits
4955  * in total!), and 1 stop bit. The protocol supports byte, integer, single,
4956  * and double datatypes. Integers are two bytes, sent most significant first.
4957  * Singles are IEEE754 single precision floating point numbers (4 byte) sent
4958  * sign & exponent first. Doubles are IEEE754 double precision floating point
4959  * numbers (8 byte) sent sign & exponent first.
4960  * The receiver supports a large set of messages, only a small subset of
4961  * which are used here. From driver to receiver the following are used:
4962  *
4963  *  ID    Description
4964  *
4965  *  21    Request current time
4966  *  22    Mode Select
4967  *  2C    Set/Request operating parameters
4968  *  2F    Request UTC info
4969  *  35    Set/Request I/O options
4970
4971  * From receiver to driver the following are recognised:
4972  *
4973  *  ID    Description
4974  *
4975  *  41    GPS Time
4976  *  44    Satellite selection, PDOP, mode
4977  *  46    Receiver health
4978  *  4B    Machine code/status
4979  *  4C    Report operating parameters (debug only)
4980  *  4F    UTC correction data (used to get leap second warnings)
4981  *  55    I/O options (debug only)
4982  *
4983  * All others are accepted but ignored.
4984  *
4985  */
4986
4987 #define PI              3.1415926535898 /* lots of sig figs */
4988 #define D2R             PI/180.0
4989
4990 /*-------------------------------------------------------------------
4991  * sendcmd, sendbyte, sendetx, sendflt, sendint implement the command
4992  * interface to the receiver.
4993  *
4994  * CAVEAT: the sendflt, sendint routines are byte order dependend and
4995  * float implementation dependend - these must be converted to portable
4996  * versions !
4997  *
4998  * CURRENT LIMITATION: float implementation. This runs only on systems
4999  * with IEEE754 floats as native floats
5000  */
5001
5002 typedef struct trimble
5003 {
5004         u_long last_msg;        /* last message received */
5005         u_long last_reset;      /* last time a reset was issued */
5006         u_char qtracking;       /* query tracking status */
5007         u_long ctrack;          /* current tracking set */
5008         u_long ltrack;          /* last tracking set */
5009 } trimble_t;
5010
5011 union uval {
5012         u_char  bd[8];
5013         int     iv;
5014         float   fv;
5015         double  dv;
5016 };
5017
5018 struct txbuf
5019 {
5020         short idx;                      /* index to first unused byte */
5021         u_char *txt;                    /* pointer to actual data buffer */
5022 };
5023
5024 void    sendcmd         (struct txbuf *buf, int c);
5025 void    sendbyte        (struct txbuf *buf, int b);
5026 void    sendetx         (struct txbuf *buf, struct parseunit *parse);
5027 void    sendint         (struct txbuf *buf, int a);
5028 void    sendflt         (struct txbuf *buf, double a);
5029
5030 void
5031 sendcmd(
5032         struct txbuf *buf,
5033         int c
5034         )
5035 {
5036         buf->txt[0] = DLE;
5037         buf->txt[1] = (u_char)c;
5038         buf->idx = 2;
5039 }
5040
5041 void    sendcmd         (struct txbuf *buf, int c);
5042 void    sendbyte        (struct txbuf *buf, int b);
5043 void    sendetx         (struct txbuf *buf, struct parseunit *parse);
5044 void    sendint         (struct txbuf *buf, int a);
5045 void    sendflt         (struct txbuf *buf, double a);
5046
5047 void
5048 sendbyte(
5049         struct txbuf *buf,
5050         int b
5051         )
5052 {
5053         if (b == DLE)
5054             buf->txt[buf->idx++] = DLE;
5055         buf->txt[buf->idx++] = (u_char)b;
5056 }
5057
5058 void
5059 sendetx(
5060         struct txbuf *buf,
5061         struct parseunit *parse
5062         )
5063 {
5064         buf->txt[buf->idx++] = DLE;
5065         buf->txt[buf->idx++] = ETX;
5066
5067         if (write(parse->generic->io.fd, buf->txt, (unsigned long)buf->idx) != buf->idx)
5068         {
5069                 ERR(ERR_BADIO)
5070                         msyslog(LOG_ERR, "PARSE receiver #%d: sendetx: failed to send cmd to clock: %m", CLK_UNIT(parse->peer));
5071         }
5072         else
5073         {
5074 #ifdef DEBUG
5075           if (debug > 2)
5076           {
5077                   char buffer[256];
5078
5079                   mkreadable(buffer, sizeof(buffer), (char *)buf->txt, (unsigned)buf->idx, 1);
5080                   printf("PARSE receiver #%d: transmitted message (%d bytes) >%s<\n",
5081                          CLK_UNIT(parse->peer),
5082                          buf->idx, buffer);
5083           }
5084 #endif
5085                 clear_err(parse, ERR_BADIO);
5086         }
5087 }
5088
5089 void
5090 sendint(
5091         struct txbuf *buf,
5092         int a
5093         )
5094 {
5095         /* send 16bit int, msbyte first */
5096         sendbyte(buf, (u_char)((a>>8) & 0xff));
5097         sendbyte(buf, (u_char)(a & 0xff));
5098 }
5099
5100 void
5101 sendflt(
5102         struct txbuf *buf,
5103         double a
5104         )
5105 {
5106         int i;
5107         union uval uval;
5108
5109         uval.fv = (float) a;
5110 #ifdef WORDS_BIGENDIAN
5111         for (i=0; i<=3; i++)
5112 #else
5113             for (i=3; i>=0; i--)
5114 #endif
5115                 sendbyte(buf, uval.bd[i]);
5116 }
5117
5118 #define TRIM_POS_OPT    0x13    /* output position with high precision */
5119 #define TRIM_TIME_OPT   0x03    /* use UTC time stamps, on second */
5120
5121 /*--------------------------------------------------
5122  * trimble TSIP setup routine
5123  */
5124 static int
5125 trimbletsip_setup(
5126                   struct parseunit *parse,
5127                   const char *reason
5128                   )
5129 {
5130         u_char buffer[256];
5131         struct txbuf buf;
5132         trimble_t *t = parse->localdata;
5133
5134         if (t && t->last_reset &&
5135             ((t->last_reset + TRIMBLE_RESET_HOLDOFF) > current_time)) {
5136                 return 1;       /* not yet */
5137         }
5138
5139         if (t)
5140                 t->last_reset = current_time;
5141
5142         buf.txt = buffer;
5143
5144         sendcmd(&buf, CMD_CVERSION);    /* request software versions */
5145         sendetx(&buf, parse);
5146
5147         sendcmd(&buf, CMD_COPERPARAM);  /* set operating parameters */
5148         sendbyte(&buf, 4);      /* static */
5149         sendflt(&buf, 5.0*D2R); /* elevation angle mask = 10 deg XXX */
5150         sendflt(&buf, 4.0);     /* s/n ratio mask = 6 XXX */
5151         sendflt(&buf, 12.0);    /* PDOP mask = 12 */
5152         sendflt(&buf, 8.0);     /* PDOP switch level = 8 */
5153         sendetx(&buf, parse);
5154
5155         sendcmd(&buf, CMD_CMODESEL);    /* fix mode select */
5156         sendbyte(&buf, 1);      /* time transfer mode */
5157         sendetx(&buf, parse);
5158
5159         sendcmd(&buf, CMD_CMESSAGE);    /* request system message */
5160         sendetx(&buf, parse);
5161
5162         sendcmd(&buf, CMD_CSUPER);      /* superpacket fix */
5163         sendbyte(&buf, 0x2);    /* binary mode */
5164         sendetx(&buf, parse);
5165
5166         sendcmd(&buf, CMD_CIOOPTIONS);  /* set I/O options */
5167         sendbyte(&buf, TRIM_POS_OPT);   /* position output */
5168         sendbyte(&buf, 0x00);   /* no velocity output */
5169         sendbyte(&buf, TRIM_TIME_OPT);  /* UTC, compute on seconds */
5170         sendbyte(&buf, 0x00);   /* no raw measurements */
5171         sendetx(&buf, parse);
5172
5173         sendcmd(&buf, CMD_CUTCPARAM);   /* request UTC correction data */
5174         sendetx(&buf, parse);
5175
5176         NLOG(NLOG_CLOCKINFO)
5177                 ERR(ERR_BADIO)
5178                 msyslog(LOG_ERR, "PARSE receiver #%d: trimbletsip_setup: RECEIVER RE-INITIALIZED (%s)", CLK_UNIT(parse->peer), reason);
5179
5180         return 0;
5181 }
5182
5183 /*--------------------------------------------------
5184  * TRIMBLE TSIP check routine
5185  */
5186 static void
5187 trimble_check(
5188               struct peer *peer
5189               )
5190 {
5191         struct parseunit *parse = peer->procptr->unitptr;
5192         trimble_t *t = parse->localdata;
5193         u_char buffer[256];
5194         struct txbuf buf;
5195         buf.txt = buffer;
5196
5197         if (t)
5198         {
5199                 if (current_time > t->last_msg + TRIMBLETSIP_IDLE_TIME)
5200                         (void)trimbletsip_setup(parse, "message timeout");
5201         }
5202
5203         poll_poll(parse->peer); /* emit query string and re-arm timer */
5204
5205         if (t && t->qtracking)
5206         {
5207                 u_long oldsats = t->ltrack & ~t->ctrack;
5208
5209                 t->qtracking = 0;
5210                 t->ltrack = t->ctrack;
5211
5212                 if (oldsats)
5213                 {
5214                         int i;
5215
5216                         for (i = 0; oldsats; i++) {
5217                                 if (oldsats & (1 << i))
5218                                         {
5219                                                 sendcmd(&buf, CMD_CSTATTRACK);
5220                                                 sendbyte(&buf, i+1);    /* old sat */
5221                                                 sendetx(&buf, parse);
5222                                         }
5223                                 oldsats &= ~(1 << i);
5224                         }
5225                 }
5226
5227                 sendcmd(&buf, CMD_CSTATTRACK);
5228                 sendbyte(&buf, 0x00);   /* current tracking set */
5229                 sendetx(&buf, parse);
5230         }
5231 }
5232
5233 /*--------------------------------------------------
5234  * TRIMBLE TSIP end routine
5235  */
5236 static void
5237 trimbletsip_end(
5238               struct parseunit *parse
5239               )
5240 {       trimble_t *t = parse->localdata;
5241
5242         if (t)
5243         {
5244                 free(t);
5245                 parse->localdata = NULL;
5246         }
5247         parse->peer->procptr->nextaction = 0;
5248         parse->peer->procptr->action = NULL;
5249 }
5250
5251 /*--------------------------------------------------
5252  * TRIMBLE TSIP init routine
5253  */
5254 static int
5255 trimbletsip_init(
5256         struct parseunit *parse
5257         )
5258 {
5259 #if defined(VEOL) || defined(VEOL2)
5260 #ifdef HAVE_TERMIOS
5261         struct termios tio;             /* NEEDED FOR A LONG TIME ! */
5262 #endif
5263 #ifdef HAVE_SYSV_TTYS
5264         struct termio tio;              /* NEEDED FOR A LONG TIME ! */
5265 #endif
5266         /*
5267          * allocate local data area
5268          */
5269         if (!parse->localdata)
5270         {
5271                 trimble_t *t;
5272
5273                 t = (trimble_t *)(parse->localdata = emalloc(sizeof(trimble_t)));
5274
5275                 if (t)
5276                 {
5277                         memset((char *)t, 0, sizeof(trimble_t));
5278                         t->last_msg = current_time;
5279                 }
5280         }
5281
5282         parse->peer->procptr->action     = trimble_check;
5283         parse->peer->procptr->nextaction = current_time;
5284
5285         /*
5286          * configure terminal line for ICANON mode with VEOL characters
5287          */
5288         if (TTY_GETATTR(parse->generic->io.fd, &tio) == -1)
5289         {
5290                 msyslog(LOG_ERR, "PARSE receiver #%d: trimbletsip_init: tcgetattr(%d, &tio): %m", CLK_UNIT(parse->peer), parse->generic->io.fd);
5291                 return 0;
5292         }
5293         else
5294         {
5295                 if ((parse_clockinfo[CLK_TYPE(parse->peer)].cl_lflag & ICANON))
5296                 {
5297 #ifdef VEOL
5298                         tio.c_cc[VEOL]  = ETX;
5299 #endif
5300 #ifdef VEOL2
5301                         tio.c_cc[VEOL2]  = DLE;
5302 #endif
5303                 }
5304
5305                 if (TTY_SETATTR(parse->generic->io.fd, &tio) == -1)
5306                 {
5307                         msyslog(LOG_ERR, "PARSE receiver #%d: trimbletsip_init: tcsetattr(%d, &tio): %m", CLK_UNIT(parse->peer), parse->generic->io.fd);
5308                         return 0;
5309                 }
5310         }
5311 #endif
5312         return trimbletsip_setup(parse, "initial startup");
5313 }
5314
5315 /*------------------------------------------------------------
5316  * trimbletsip_event - handle Trimble events
5317  * simple evente handler - attempt to re-initialize receiver
5318  */
5319 static void
5320 trimbletsip_event(
5321         struct parseunit *parse,
5322         int event
5323         )
5324 {
5325         switch (event)
5326         {
5327             case CEVNT_BADREPLY:        /* reset on garbled input */
5328             case CEVNT_TIMEOUT:         /* reset on no input */
5329                     (void)trimbletsip_setup(parse, "event BAD_REPLY/TIMEOUT");
5330                     break;
5331
5332             default:                    /* ignore */
5333                 break;
5334         }
5335 }
5336
5337 /*
5338  * getflt, getint convert fields in the incoming data into the
5339  * appropriate type of item
5340  *
5341  * CAVEAT: these routines are currently definitely byte order dependent
5342  * and assume Representation(float) == IEEE754
5343  * These functions MUST be converted to portable versions (especially
5344  * converting the float representation into ntp_fp formats in order
5345  * to avoid floating point operations at all!
5346  */
5347
5348 static float
5349 getflt(
5350         u_char *bp
5351         )
5352 {
5353         union uval uval;
5354
5355 #ifdef WORDS_BIGENDIAN
5356         uval.bd[0] = *bp++;
5357         uval.bd[1] = *bp++;
5358         uval.bd[2] = *bp++;
5359         uval.bd[3] = *bp;
5360 #else  /* ! WORDS_BIGENDIAN */
5361         uval.bd[3] = *bp++;
5362         uval.bd[2] = *bp++;
5363         uval.bd[1] = *bp++;
5364         uval.bd[0] = *bp;
5365 #endif /* ! WORDS_BIGENDIAN */
5366         return uval.fv;
5367 }
5368
5369 static double
5370 getdbl(
5371         u_char *bp
5372         )
5373 {
5374         union uval uval;
5375
5376 #ifdef WORDS_BIGENDIAN
5377         uval.bd[0] = *bp++;
5378         uval.bd[1] = *bp++;
5379         uval.bd[2] = *bp++;
5380         uval.bd[3] = *bp++;
5381         uval.bd[4] = *bp++;
5382         uval.bd[5] = *bp++;
5383         uval.bd[6] = *bp++;
5384         uval.bd[7] = *bp;
5385 #else  /* ! WORDS_BIGENDIAN */
5386         uval.bd[7] = *bp++;
5387         uval.bd[6] = *bp++;
5388         uval.bd[5] = *bp++;
5389         uval.bd[4] = *bp++;
5390         uval.bd[3] = *bp++;
5391         uval.bd[2] = *bp++;
5392         uval.bd[1] = *bp++;
5393         uval.bd[0] = *bp;
5394 #endif /* ! WORDS_BIGENDIAN */
5395         return uval.dv;
5396 }
5397
5398 static int
5399 getshort(
5400          unsigned char *p
5401          )
5402 {
5403         return (int) get_msb_short(&p);
5404 }
5405
5406 /*--------------------------------------------------
5407  * trimbletsip_message - process trimble messages
5408  */
5409 #define RTOD (180.0 / 3.1415926535898)
5410 #define mb(_X_) (buffer[2+(_X_)]) /* shortcut for buffer access */
5411
5412 static void
5413 trimbletsip_message(
5414                     struct parseunit *parse,
5415                     parsetime_t      *parsetime
5416                     )
5417 {
5418         unsigned char *buffer = parsetime->parse_msg;
5419         unsigned int   size   = parsetime->parse_msglen;
5420
5421         if ((size < 4) ||
5422             (buffer[0]      != DLE) ||
5423             (buffer[size-1] != ETX) ||
5424             (buffer[size-2] != DLE))
5425         {
5426 #ifdef DEBUG
5427                 if (debug > 2) {
5428                         size_t i;
5429
5430                         printf("TRIMBLE BAD packet, size %d:\n  ", size);
5431                         for (i = 0; i < size; i++) {
5432                                 printf ("%2.2x, ", buffer[i]&0xff);
5433                                 if (i%16 == 15) printf("\n\t");
5434                         }
5435                         printf("\n");
5436                 }
5437 #endif
5438                 return;
5439         }
5440         else
5441         {
5442                 u_short var_flag;
5443                 trimble_t *tr = parse->localdata;
5444                 unsigned int cmd = buffer[1];
5445                 char pbuffer[200];
5446                 char *t = pbuffer;
5447                 cmd_info_t *s;
5448
5449 #ifdef DEBUG
5450                 if (debug > 3) {
5451                         size_t i;
5452
5453                         printf("TRIMBLE packet 0x%02x, size %d:\n       ", cmd, size);
5454                         for (i = 0; i < size; i++) {
5455                                 printf ("%2.2x, ", buffer[i]&0xff);
5456                                 if (i%16 == 15) printf("\n\t");
5457                         }
5458                         printf("\n");
5459                 }
5460 #endif
5461
5462                 if (tr)
5463                         tr->last_msg = current_time;
5464
5465                 s = trimble_convert(cmd, trimble_rcmds);
5466
5467                 if (s)
5468                 {
5469                         t = ap(pbuffer, sizeof(pbuffer), t, "%s=\"", s->varname);
5470                 }
5471                 else
5472                 {
5473                         DPRINTF(1, ("TRIMBLE UNKNOWN COMMAND 0x%02x\n", cmd));
5474                         return;
5475                 }
5476
5477                 var_flag = (u_short) s->varmode;
5478
5479                 switch(cmd)
5480                 {
5481                 case CMD_RCURTIME:
5482                         t = ap(pbuffer, sizeof(pbuffer), t, "%f, %d, %f",
5483                                  getflt((unsigned char *)&mb(0)), getshort((unsigned char *)&mb(4)),
5484                                  getflt((unsigned char *)&mb(6)));
5485                         break;
5486
5487                 case CMD_RBEST4:
5488                         t = ap(pbuffer, sizeof(pbuffer), t, "mode: ");
5489                         switch (mb(0) & 0xF)
5490                         {
5491                         default:
5492                                 t = ap(pbuffer, sizeof(pbuffer), t,
5493                                     "0x%x", mb(0) & 0x7);
5494                                 break;
5495
5496                         case 1:
5497                                 t = ap(pbuffer, sizeof(pbuffer), t, "0D");
5498                                 break;
5499
5500                         case 3:
5501                                 t = ap(pbuffer, sizeof(pbuffer), t, "2D");
5502                                 break;
5503
5504                         case 4:
5505                                 t = ap(pbuffer, sizeof(pbuffer), t, "3D");
5506                                 break;
5507                         }
5508                         if (mb(0) & 0x10)
5509                                 t = ap(pbuffer, sizeof(pbuffer), t, "-MANUAL, ");
5510                         else
5511                                 t = ap(pbuffer, sizeof(pbuffer), t, "-AUTO, ");
5512
5513                         t = ap(pbuffer, sizeof(pbuffer), t, "satellites %02d %02d %02d %02d, PDOP %.2f, HDOP %.2f, VDOP %.2f, TDOP %.2f",
5514                                 mb(1), mb(2), mb(3), mb(4),
5515                                 getflt((unsigned char *)&mb(5)),
5516                                 getflt((unsigned char *)&mb(9)),
5517                                 getflt((unsigned char *)&mb(13)),
5518                                 getflt((unsigned char *)&mb(17)));
5519
5520                         break;
5521
5522                 case CMD_RVERSION:
5523                         t = ap(pbuffer, sizeof(pbuffer), t, "%d.%d (%d/%d/%d)",
5524                                 mb(0)&0xff, mb(1)&0xff, 1900+(mb(4)&0xff), mb(2)&0xff, mb(3)&0xff);
5525                         break;
5526
5527                 case CMD_RRECVHEALTH:
5528                 {
5529                         static const char *msgs[] =
5530                         {
5531                                 "Battery backup failed",
5532                                 "Signal processor error",
5533                                 "Alignment error, channel or chip 1",
5534                                 "Alignment error, channel or chip 2",
5535                                 "Antenna feed line fault",
5536                                 "Excessive ref freq. error",
5537                                 "<BIT 6>",
5538                                 "<BIT 7>"
5539                         };
5540
5541                         int i, bits;
5542
5543                         switch (mb(0) & 0xFF)
5544                         {
5545                         default:
5546                                 t = ap(pbuffer, sizeof(pbuffer), t, "illegal value 0x%02x", mb(0) & 0xFF);
5547                                 break;
5548                         case 0x00:
5549                                 t = ap(pbuffer, sizeof(pbuffer), t, "doing position fixes");
5550                                 break;
5551                         case 0x01:
5552                                 t = ap(pbuffer, sizeof(pbuffer), t, "no GPS time yet");
5553                                 break;
5554                         case 0x03:
5555                                 t = ap(pbuffer, sizeof(pbuffer), t, "PDOP too high");
5556                                 break;
5557                         case 0x08:
5558                                 t = ap(pbuffer, sizeof(pbuffer), t, "no usable satellites");
5559                                 break;
5560                         case 0x09:
5561                                 t = ap(pbuffer, sizeof(pbuffer), t, "only ONE usable satellite");
5562                                 break;
5563                         case 0x0A:
5564                                 t = ap(pbuffer, sizeof(pbuffer), t, "only TWO usable satellites");
5565                                 break;
5566                         case 0x0B:
5567                                 t = ap(pbuffer, sizeof(pbuffer), t, "only THREE usable satellites");
5568                                 break;
5569                         case 0x0C:
5570                                 t = ap(pbuffer, sizeof(pbuffer), t, "the chosen satellite is unusable");
5571                                 break;
5572                         }
5573
5574                         bits = mb(1) & 0xFF;
5575
5576                         for (i = 0; i < 8; i++)
5577                                 if (bits & (0x1<<i))
5578                                 {
5579                                         t = ap(pbuffer, sizeof(pbuffer), t, ", %s", msgs[i]);
5580                                 }
5581                 }
5582                 break;
5583
5584                 case CMD_RMESSAGE:
5585                         mkreadable(t, (int)BUFFER_SIZE(pbuffer, t), (char *)&mb(0), (unsigned)(size - 2 - (&mb(0) - buffer)), 0);
5586                         break;
5587
5588                 case CMD_RMACHSTAT:
5589                 {
5590                         static const char *msgs[] =
5591                         {
5592                                 "Synthesizer Fault",
5593                                 "Battery Powered Time Clock Fault",
5594                                 "A-to-D Converter Fault",
5595                                 "The almanac stored in the receiver is not complete and current",
5596                                 "<BIT 4>",
5597                                 "<BIT 5",
5598                                 "<BIT 6>",
5599                                 "<BIT 7>"
5600                         };
5601
5602                         int i, bits;
5603
5604                         t = ap(pbuffer, sizeof(pbuffer), t, "machine id 0x%02x", mb(0) & 0xFF);
5605                         bits = mb(1) & 0xFF;
5606
5607                         for (i = 0; i < 8; i++)
5608                                 if (bits & (0x1<<i))
5609                                 {
5610                                         t = ap(pbuffer, sizeof(pbuffer), t, ", %s", msgs[i]);
5611                                 }
5612
5613                         t = ap(pbuffer, sizeof(pbuffer), t, ", Superpackets %ssupported", (mb(2) & 0xFF) ? "" :"un" );
5614                 }
5615                 break;
5616
5617                 case CMD_ROPERPARAM:
5618                         t = ap(pbuffer, sizeof(pbuffer), t, "%2x %.1f %.1f %.1f %.1f",
5619                                 mb(0), getflt((unsigned char *)&mb(1)), getflt((unsigned char *)&mb(5)),
5620                                 getflt((unsigned char *)&mb(9)), getflt((unsigned char *)&mb(13)));
5621                         break;
5622
5623                 case CMD_RUTCPARAM:
5624                 {
5625                         float t0t = getflt((unsigned char *)&mb(14));
5626                         short wnt = (short) getshort((unsigned char *)&mb(18));
5627                         short dtls = (short) getshort((unsigned char *)&mb(12));
5628                         short wnlsf = (short) getshort((unsigned char *)&mb(20));
5629                         short dn = (short) getshort((unsigned char *)&mb(22));
5630                         short dtlsf = (short) getshort((unsigned char *)&mb(24));
5631
5632                         if ((int)t0t != 0)
5633                         {
5634                                 mk_utcinfo(t, wnt, wnlsf, dn, dtls, dtlsf, BUFFER_SIZE(pbuffer, t));
5635                         }
5636                         else
5637                         {
5638                                 t = ap(pbuffer, sizeof(pbuffer), t, "<NO UTC DATA>");
5639                         }
5640                 }
5641                 break;
5642
5643                 case CMD_RSAT1BIAS:
5644                         t = ap(pbuffer, sizeof(pbuffer), t, "%.1fm %.2fm/s at %.1fs",
5645                                 getflt(&mb(0)), getflt(&mb(4)), getflt(&mb(8)));
5646                         break;
5647
5648                 case CMD_RIOOPTIONS:
5649                 {
5650                         t = ap(pbuffer, sizeof(pbuffer), t, "%02x %02x %02x %02x",
5651                                 mb(0), mb(1), mb(2), mb(3));
5652                         if (mb(0) != TRIM_POS_OPT ||
5653                             mb(2) != TRIM_TIME_OPT)
5654                         {
5655                                 (void)trimbletsip_setup(parse, "bad io options");
5656                         }
5657                 }
5658                 break;
5659
5660                 case CMD_RSPOSXYZ:
5661                 {
5662                         double x = getflt((unsigned char *)&mb(0));
5663                         double y = getflt((unsigned char *)&mb(4));
5664                         double z = getflt((unsigned char *)&mb(8));
5665                         double f = getflt((unsigned char *)&mb(12));
5666
5667                         if (f > 0.0)
5668                           t = ap(pbuffer, sizeof(pbuffer), t, "x= %.1fm, y= %.1fm, z= %.1fm, time_of_fix= %f sec",
5669                                   x, y, z,
5670                                   f);
5671                         else
5672                                 return;
5673                 }
5674                 break;
5675
5676                 case CMD_RSLLAPOS:
5677                 {
5678                         double lat = getflt((unsigned char *)&mb(0));
5679                         double lng = getflt((unsigned char *)&mb(4));
5680                         double f   = getflt((unsigned char *)&mb(12));
5681
5682                         if (f > 0.0)
5683                           t = ap(pbuffer, sizeof(pbuffer), t, "lat %f %c, long %f %c, alt %.2fm",
5684                                   ((lat < 0.0) ? (-lat) : (lat))*RTOD, (lat < 0.0 ? 'S' : 'N'),
5685                                   ((lng < 0.0) ? (-lng) : (lng))*RTOD, (lng < 0.0 ? 'W' : 'E'),
5686                                   getflt((unsigned char *)&mb(8)));
5687                         else
5688                                 return;
5689                 }
5690                 break;
5691
5692                 case CMD_RDOUBLEXYZ:
5693                 {
5694                         double x = getdbl((unsigned char *)&mb(0));
5695                         double y = getdbl((unsigned char *)&mb(8));
5696                         double z = getdbl((unsigned char *)&mb(16));
5697                         t = ap(pbuffer, sizeof(pbuffer), t, "x= %.1fm, y= %.1fm, z= %.1fm",
5698                                 x, y, z);
5699                 }
5700                 break;
5701
5702                 case CMD_RDOUBLELLA:
5703                 {
5704                         double lat = getdbl((unsigned char *)&mb(0));
5705                         double lng = getdbl((unsigned char *)&mb(8));
5706                         t = ap(pbuffer, sizeof(pbuffer), t, "lat %f %c, lon %f %c, alt %.2fm",
5707                                 ((lat < 0.0) ? (-lat) : (lat))*RTOD, (lat < 0.0 ? 'S' : 'N'),
5708                                 ((lng < 0.0) ? (-lng) : (lng))*RTOD, (lng < 0.0 ? 'W' : 'E'),
5709                                 getdbl((unsigned char *)&mb(16)));
5710                 }
5711                 break;
5712
5713                 case CMD_RALLINVIEW:
5714                 {
5715                         int i, sats;
5716
5717                         t = ap(pbuffer, sizeof(pbuffer), t, "mode: ");
5718                         switch (mb(0) & 0x7)
5719                         {
5720                         default:
5721                                 t = ap(pbuffer, sizeof(pbuffer), t, "0x%x", mb(0) & 0x7);
5722                                 break;
5723
5724                         case 3:
5725                                 t = ap(pbuffer, sizeof(pbuffer), t, "2D");
5726                                 break;
5727
5728                         case 4:
5729                                 t = ap(pbuffer, sizeof(pbuffer), t, "3D");
5730                                 break;
5731                         }
5732                         if (mb(0) & 0x8)
5733                                 t = ap(pbuffer, sizeof(pbuffer), t, "-MANUAL, ");
5734                         else
5735                                 t = ap(pbuffer, sizeof(pbuffer), t, "-AUTO, ");
5736
5737                         sats = (mb(0)>>4) & 0xF;
5738
5739                         t = ap(pbuffer, sizeof(pbuffer), t, "PDOP %.2f, HDOP %.2f, VDOP %.2f, TDOP %.2f, %d satellite%s in view: ",
5740                                 getflt((unsigned char *)&mb(1)),
5741                                 getflt((unsigned char *)&mb(5)),
5742                                 getflt((unsigned char *)&mb(9)),
5743                                 getflt((unsigned char *)&mb(13)),
5744                                 sats, (sats == 1) ? "" : "s");
5745
5746                         for (i=0; i < sats; i++)
5747                         {
5748                                 t = ap(pbuffer, sizeof(pbuffer), t, "%s%02d", i ? ", " : "", mb(17+i));
5749                                 if (tr)
5750                                         tr->ctrack |= (1 << (mb(17+i)-1));
5751                         }
5752
5753                         if (tr)
5754                         {       /* mark for tracking status query */
5755                                 tr->qtracking = 1;
5756                         }
5757                 }
5758                 break;
5759
5760                 case CMD_RSTATTRACK:
5761                 {
5762                         t = ap(pbuffer, sizeof(pbuffer), t-2, "[%02d]=\"", mb(0)); /* add index to var name */
5763                         if (getflt((unsigned char *)&mb(4)) < 0.0)
5764                         {
5765                                 t = ap(pbuffer, sizeof(pbuffer), t, "<NO MEASUREMENTS>");
5766                                 var_flag &= (u_short)(~DEF);
5767                         }
5768                         else
5769                         {
5770                                 t = ap(pbuffer, sizeof(pbuffer), t, "ch=%d, acq=%s, eph=%d, signal_level= %5.2f, elevation= %5.2f, azimuth= %6.2f",
5771                                         (mb(1) & 0xFF)>>3,
5772                                         mb(2) ? ((mb(2) == 1) ? "ACQ" : "SRCH") : "NEVER",
5773                                         mb(3),
5774                                         getflt((unsigned char *)&mb(4)),
5775                                         getflt((unsigned char *)&mb(12)) * RTOD,
5776                                         getflt((unsigned char *)&mb(16)) * RTOD);
5777                                 if (mb(20))
5778                                 {
5779                                         var_flag &= (u_short)(~DEF);
5780                                         t = ap(pbuffer, sizeof(pbuffer), t, ", OLD");
5781                                 }
5782                                 if (mb(22))
5783                                 {
5784                                         if (mb(22) == 1)
5785                                                 t = ap(pbuffer, sizeof(pbuffer), t, ", BAD PARITY");
5786                                         else
5787                                                 if (mb(22) == 2)
5788                                                         t = ap(pbuffer, sizeof(pbuffer), t, ", BAD EPH HEALTH");
5789                                 }
5790                                 if (mb(23))
5791                                         t = ap(pbuffer, sizeof(pbuffer), t, ", collecting data");
5792                         }
5793                 }
5794                 break;
5795
5796                 default:
5797                         t = ap(pbuffer, sizeof(pbuffer), t, "<UNDECODED>");
5798                         break;
5799                 }
5800
5801                 t = ap(pbuffer, sizeof(pbuffer), t, "\"");
5802                 set_var(&parse->kv, pbuffer, sizeof(pbuffer), var_flag);
5803         }
5804 }
5805
5806
5807 /**============================================================
5808  ** RAWDCF support
5809  **/
5810
5811 /*--------------------------------------------------
5812  * rawdcf_init_1 - set up modem lines for RAWDCF receivers
5813  * SET DTR line
5814  */
5815 #if defined(TIOCMSET) && (defined(TIOCM_DTR) || defined(CIOCM_DTR))
5816 static int
5817 rawdcf_init_1(
5818         struct parseunit *parse
5819         )
5820 {
5821         /* fixed 2000 for using with Linux by Wolfram Pienkoss <wp@bszh.de> */
5822         /*
5823          * You can use the RS232 to supply the power for a DCF77 receiver.
5824          * Here a voltage between the DTR and the RTS line is used. Unfortunately
5825          * the name has changed from CIOCM_DTR to TIOCM_DTR recently.
5826          */
5827         int sl232;
5828
5829         if (ioctl(parse->generic->io.fd, TIOCMGET, (caddr_t)&sl232) == -1)
5830         {
5831                 msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_1: WARNING: ioctl(fd, TIOCMGET, [C|T]IOCM_DTR): %m", CLK_UNIT(parse->peer));
5832                 return 0;
5833         }
5834
5835 #ifdef TIOCM_DTR
5836         sl232 = (sl232 & ~TIOCM_RTS) | TIOCM_DTR;       /* turn on DTR, clear RTS for power supply */
5837 #else
5838         sl232 = (sl232 & ~CIOCM_RTS) | CIOCM_DTR;       /* turn on DTR, clear RTS for power supply */
5839 #endif
5840
5841         if (ioctl(parse->generic->io.fd, TIOCMSET, (caddr_t)&sl232) == -1)
5842         {
5843                 msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_1: WARNING: ioctl(fd, TIOCMSET, [C|T]IOCM_DTR): %m", CLK_UNIT(parse->peer));
5844         }
5845         return 0;
5846 }
5847 #else
5848 static int
5849 rawdcfdtr_init_1(
5850         struct parseunit *parse
5851         )
5852 {
5853         msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_1: WARNING: OS interface incapable of setting DTR to power DCF modules", CLK_UNIT(parse->peer));
5854         return 0;
5855 }
5856 #endif  /* DTR initialisation type */
5857
5858 /*--------------------------------------------------
5859  * rawdcf_init_2 - set up modem lines for RAWDCF receivers
5860  * CLR DTR line, SET RTS line
5861  */
5862 #if defined(TIOCMSET) &&  (defined(TIOCM_RTS) || defined(CIOCM_RTS))
5863 static int
5864 rawdcf_init_2(
5865         struct parseunit *parse
5866         )
5867 {
5868         /* fixed 2000 for using with Linux by Wolfram Pienkoss <wp@bszh.de> */
5869         /*
5870          * You can use the RS232 to supply the power for a DCF77 receiver.
5871          * Here a voltage between the DTR and the RTS line is used. Unfortunately
5872          * the name has changed from CIOCM_DTR to TIOCM_DTR recently.
5873          */
5874         int sl232;
5875
5876         if (ioctl(parse->generic->io.fd, TIOCMGET, (caddr_t)&sl232) == -1)
5877         {
5878                 msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_2: WARNING: ioctl(fd, TIOCMGET, [C|T]IOCM_RTS): %m", CLK_UNIT(parse->peer));
5879                 return 0;
5880         }
5881
5882 #ifdef TIOCM_RTS
5883         sl232 = (sl232 & ~TIOCM_DTR) | TIOCM_RTS;       /* turn on RTS, clear DTR for power supply */
5884 #else
5885         sl232 = (sl232 & ~CIOCM_DTR) | CIOCM_RTS;       /* turn on RTS, clear DTR for power supply */
5886 #endif
5887
5888         if (ioctl(parse->generic->io.fd, TIOCMSET, (caddr_t)&sl232) == -1)
5889         {
5890                 msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_2: WARNING: ioctl(fd, TIOCMSET, [C|T]IOCM_RTS): %m", CLK_UNIT(parse->peer));
5891         }
5892         return 0;
5893 }
5894 #else
5895 static int
5896 rawdcf_init_2(
5897         struct parseunit *parse
5898         )
5899 {
5900         msyslog(LOG_NOTICE, "PARSE receiver #%d: rawdcf_init_2: WARNING: OS interface incapable of setting RTS to power DCF modules", CLK_UNIT(parse->peer));
5901         return 0;
5902 }
5903 #endif  /* DTR initialisation type */
5904
5905 #else   /* defined(REFCLOCK) && defined(PARSE) */
5906 NONEMPTY_TRANSLATION_UNIT
5907 #endif  /* defined(REFCLOCK) && defined(PARSE) */
5908
5909 /*
5910  * History:
5911  *
5912  * refclock_parse.c,v
5913  * Revision 4.81  2009/05/01 10:15:29  kardel
5914  * use new refclock_ppsapi interface
5915  *
5916  * Revision 4.80  2007/08/11 12:06:29  kardel
5917  * update comments wrt/ to PPS
5918  *
5919  * Revision 4.79  2007/08/11 11:52:23  kardel
5920  * - terminate io bindings before io_closeclock() will close our file descriptor
5921  *
5922  * Revision 4.78  2006/12/22 20:08:27  kardel
5923  * Bug 746 (RFE): add configuration for Expert mouseCLOCK USB v2.0 as mode 19
5924  *
5925  * Revision 4.77  2006/08/05 07:44:49  kardel
5926  * support optionally separate PPS devices via /dev/refclockpps-{0..3}
5927  *
5928  * Revision 4.76  2006/06/22 18:40:47  kardel
5929  * clean up signedness (gcc 4)
5930  *
5931  * Revision 4.75  2006/06/22 16:58:10  kardel
5932  * Bug #632: call parse_ppsapi() in parse_ctl() when updating
5933  * the PPS offset. Fix sign of offset passed to kernel.
5934  *
5935  * Revision 4.74  2006/06/18 21:18:37  kardel
5936  * NetBSD Coverity CID 3796: possible NULL deref
5937  *
5938  * Revision 4.73  2006/05/26 14:23:46  kardel
5939  * cleanup of copyright info
5940  *
5941  * Revision 4.72  2006/05/26 14:19:43  kardel
5942  * cleanup of ioctl cruft
5943  *
5944  * Revision 4.71  2006/05/26 14:15:57  kardel
5945  * delay adding refclock to async refclock io after all initializations
5946  *
5947  * Revision 4.70  2006/05/25 18:20:50  kardel
5948  * bug #619
5949  * terminate parse io engine after de-registering
5950  * from refclock io engine
5951  *
5952  * Revision 4.69  2006/05/25 17:28:02  kardel
5953  * complete refclock io structure initialization *before* inserting it into the
5954  * refclock input machine (avoids null pointer deref) (bug #619)
5955  *
5956  * Revision 4.68  2006/05/01 17:02:51  kardel
5957  * copy receiver method also for newlwy created receive buffers
5958  *
5959  * Revision 4.67  2006/05/01 14:37:29  kardel
5960  * If an input buffer parses into more than one message do insert the
5961  * parsed message in a new input buffer instead of processing it
5962  * directly. This avoids deed complicated processing in signal
5963  * handling.
5964  *
5965  * Revision 4.66  2006/03/18 00:45:30  kardel
5966  * coverity fixes found in NetBSD coverity scan
5967  *
5968  * Revision 4.65  2006/01/26 06:08:33  kardel
5969  * output errno on PPS setup failure
5970  *
5971  * Revision 4.64  2005/11/09 20:44:47  kardel
5972  * utilize full PPS timestamp resolution from PPS API
5973  *
5974  * Revision 4.63  2005/10/07 22:10:25  kardel
5975  * bounded buffer implementation
5976  *
5977  * Revision 4.62.2.2  2005/09/25 10:20:16  kardel
5978  * avoid unexpected buffer overflows due to sprintf("%f") on strange floats:
5979  * replace almost all str* and *printf functions be their buffer bounded
5980  * counterparts
5981  *
5982  * Revision 4.62.2.1  2005/08/27 16:19:27  kardel
5983  * limit re-set rate of trimble clocks
5984  *
5985  * Revision 4.62  2005/08/06 17:40:00  kardel
5986  * cleanup size handling wrt/ to buffer boundaries
5987  *
5988  * Revision 4.61  2005/07/27 21:16:19  kardel
5989  * fix a long (> 11 years) misconfiguration wrt/ Meinberg cflag factory
5990  * default setup. CSTOPB was missing for the 7E2 default data format of
5991  * the DCF77 clocks.
5992  *
5993  * Revision 4.60  2005/07/17 21:14:44  kardel
5994  * change contents of version string to include the RCS/CVS Id
5995  *
5996  * Revision 4.59  2005/07/06 06:56:38  kardel
5997  * syntax error
5998  *
5999  * Revision 4.58  2005/07/04 13:10:40  kardel
6000  * fix bug 455: tripping over NULL pointer on cleanup
6001  * fix shadow storage logic for ppsphaseadjust and trustime wrt/ time2
6002  * fix compiler warnings for some platforms wrt/ printf formatstrings and
6003  *     varying structure element sizes
6004  * reorder assignment in binding to avoid tripping over NULL pointers
6005  *
6006  * Revision 4.57  2005/06/25 09:25:19  kardel
6007  * sort out log output sequence
6008  *
6009  * Revision 4.56  2005/06/14 21:47:27  kardel
6010  * collect samples only if samples are ok (sync or trusted flywheel)
6011  * propagate pps phase adjustment value to kernel via PPSAPI to help HARDPPS
6012  * en- and dis-able HARDPPS in correlation to receiver sync state
6013  *
6014  * Revision 4.55  2005/06/02 21:28:31  kardel
6015  * clarify trust logic
6016  *
6017  * Revision 4.54  2005/06/02 17:06:49  kardel
6018  * change status reporting to use fixed refclock_report()
6019  *
6020  * Revision 4.53  2005/06/02 16:33:31  kardel
6021  * fix acceptance of clocks unsync clocks right at start
6022  *
6023  * Revision 4.52  2005/05/26 21:55:06  kardel
6024  * cleanup status reporting
6025  *
6026  * Revision 4.51  2005/05/26 19:19:14  kardel
6027  * implement fast refclock startup
6028  *
6029  * Revision 4.50  2005/04/16 20:51:35  kardel
6030  * set hardpps_enable = 1 when binding a kernel PPS source
6031  *
6032  * Revision 4.49  2005/04/16 17:29:26  kardel
6033  * add non polling clock type 18 for just listenning to Meinberg clocks
6034  *
6035  * Revision 4.48  2005/04/16 16:22:27  kardel
6036  * bk sync 20050415 ntp-dev
6037  *
6038  * Revision 4.47  2004/11/29 10:42:48  kardel
6039  * bk sync ntp-dev 20041129
6040  *
6041  * Revision 4.46  2004/11/29 10:26:29  kardel
6042  * keep fudgetime2 in sync with trusttime/ppsphaseadjust depending in flag1
6043  *
6044  * Revision 4.45  2004/11/14 20:53:20  kardel
6045  * clear PPS flags after using them
6046  *
6047  * Revision 4.44  2004/11/14 15:29:41  kardel
6048  * support PPSAPI, upgrade Copyright to Berkeley style
6049  *
6050  * Revision 4.43  2001/05/26 22:53:16  kardel
6051  * 20010526 reconcilation
6052  *
6053  * Revision 4.42  2000/05/14 15:31:51  kardel
6054  * PPSAPI && RAWDCF modemline support
6055  *
6056  * Revision 4.41  2000/04/09 19:50:45  kardel
6057  * fixed rawdcfdtr_init() -> rawdcf_init_1
6058  *
6059  * Revision 4.40  2000/04/09 15:27:55  kardel
6060  * modem line fiddle in rawdcf_init_2
6061  *
6062  * Revision 4.39  2000/03/18 09:16:55  kardel
6063  * PPSAPI integration
6064  *
6065  * Revision 4.38  2000/03/05 20:25:06  kardel
6066  * support PPSAPI
6067  *
6068  * Revision 4.37  2000/03/05 20:11:14  kardel
6069  * 4.0.99g reconcilation
6070  *
6071  * Revision 4.36  1999/11/28 17:18:20  kardel
6072  * disabled burst mode
6073  *
6074  * Revision 4.35  1999/11/28 09:14:14  kardel
6075  * RECON_4_0_98F
6076  *
6077  * Revision 4.34  1999/05/14 06:08:05  kardel
6078  * store current_time in a suitable container (u_long)
6079  *
6080  * Revision 4.33  1999/05/13 21:48:38  kardel
6081  * double the no response timeout interval
6082  *
6083  * Revision 4.32  1999/05/13 20:09:13  kardel
6084  * complain only about missing polls after a full poll interval
6085  *
6086  * Revision 4.31  1999/05/13 19:59:32  kardel
6087  * add clock type 16 for RTS set DTR clr in RAWDCF
6088  *
6089  * Revision 4.30  1999/02/28 20:36:43  kardel
6090  * fixed printf fmt
6091  *
6092  * Revision 4.29  1999/02/28 19:58:23  kardel
6093  * updated copyright information
6094  *
6095  * Revision 4.28  1999/02/28 19:01:50  kardel
6096  * improved debug out on sent Meinberg messages
6097  *
6098  * Revision 4.27  1999/02/28 18:05:55  kardel
6099  * no linux/ppsclock.h stuff
6100  *
6101  * Revision 4.26  1999/02/28 15:27:27  kardel
6102  * wharton clock integration
6103  *
6104  * Revision 4.25  1999/02/28 14:04:46  kardel
6105  * added missing double quotes to UTC information string
6106  *
6107  * Revision 4.24  1999/02/28 12:06:50  kardel
6108  * (parse_control): using gmprettydate instead of prettydate()
6109  * (mk_utcinfo): new function for formatting GPS derived UTC information
6110  * (gps16x_message): changed to use mk_utcinfo()
6111  * (trimbletsip_message): changed to use mk_utcinfo()
6112  * ignoring position information in unsynchronized mode
6113  * (parse_start): augument linux support for optional ASYNC_LOW_LATENCY
6114  *
6115  * Revision 4.23  1999/02/23 19:47:53  kardel
6116  * fixed #endifs
6117  * (stream_receive): fixed formats
6118  *
6119  * Revision 4.22  1999/02/22 06:21:02  kardel
6120  * use new autoconfig symbols
6121  *
6122  * Revision 4.21  1999/02/21 12:18:13  kardel
6123  * 4.91f reconcilation
6124  *
6125  * Revision 4.20  1999/02/21 10:53:36  kardel
6126  * initial Linux PPSkit version
6127  *
6128  * Revision 4.19  1999/02/07 09:10:45  kardel
6129  * clarify STREAMS mitigation rules in comment
6130  *
6131  * Revision 4.18  1998/12/20 23:45:34  kardel
6132  * fix types and warnings
6133  *
6134  * Revision 4.17  1998/11/15 21:24:51  kardel
6135  * cannot access mbg_ routines when CLOCK_MEINBERG
6136  * is not defined
6137  *
6138  * Revision 4.16  1998/11/15 20:28:17  kardel
6139  * Release 4.0.73e13 reconcilation
6140  *
6141  * Revision 4.15  1998/08/22 21:56:08  kardel
6142  * fixed IO handling for non-STREAM IO
6143  *
6144  * Revision 4.14  1998/08/16 19:00:48  kardel
6145  * (gps16x_message): reduced UTC parameter information (dropped A0,A1)
6146  * made uval a local variable (killed one of the last globals)
6147  * (sendetx): added logging of messages when in debug mode
6148  * (trimble_check): added periodic checks to facilitate re-initialization
6149  * (trimbletsip_init): made use of EOL character if in non-kernel operation
6150  * (trimbletsip_message): extended message interpretation
6151  * (getdbl): fixed data conversion
6152  *
6153  * Revision 4.13  1998/08/09 22:29:13  kardel
6154  * Trimble TSIP support
6155  *
6156  * Revision 4.12  1998/07/11 10:05:34  kardel
6157  * Release 4.0.73d reconcilation
6158  *
6159  * Revision 4.11  1998/06/14 21:09:42  kardel
6160  * Sun acc cleanup
6161  *
6162  * Revision 4.10  1998/06/13 12:36:45  kardel
6163  * signed/unsigned, name clashes
6164  *
6165  * Revision 4.9  1998/06/12 15:30:00  kardel
6166  * prototype fixes
6167  *
6168  * Revision 4.8  1998/06/12 11:19:42  kardel
6169  * added direct input processing routine for refclocks in
6170  * order to avaiod that single character io gobbles up all
6171  * receive buffers and drops input data. (Problem started
6172  * with fast machines so a character a buffer was possible
6173  * one of the few cases where faster machines break existing
6174  * allocation algorithms)
6175  *
6176  * Revision 4.7  1998/06/06 18:35:20  kardel
6177  * (parse_start): added BURST mode initialisation
6178  *
6179  * Revision 4.6  1998/05/27 06:12:46  kardel
6180  * RAWDCF_BASEDELAY default added
6181  * old comment removed
6182  * casts for ioctl()
6183  *
6184  * Revision 4.5  1998/05/25 22:05:09  kardel
6185  * RAWDCF_SETDTR option removed
6186  * clock type 14 attempts to set DTR for
6187  * power supply of RAWDCF receivers
6188  *
6189  * Revision 4.4  1998/05/24 16:20:47  kardel
6190  * updated comments referencing Meinberg clocks
6191  * added RAWDCF clock with DTR set option as type 14
6192  *
6193  * Revision 4.3  1998/05/24 10:48:33  kardel
6194  * calibrated CONRAD RAWDCF default fudge factor
6195  *
6196  * Revision 4.2  1998/05/24 09:59:35  kardel
6197  * corrected version information (ntpq support)
6198  *
6199  * Revision 4.1  1998/05/24 09:52:31  kardel
6200  * use fixed format only (new IO model)
6201  * output debug to stdout instead of msyslog()
6202  * don't include >"< in ASCII output in order not to confuse
6203  * ntpq parsing
6204  *
6205  * Revision 4.0  1998/04/10 19:52:11  kardel
6206  * Start 4.0 release version numbering
6207  *
6208  * Revision 1.2  1998/04/10 19:28:04  kardel
6209  * initial NTP VERSION 4 integration of PARSE with GPS166 binary support
6210  * derived from 3.105.1.2 from V3 tree
6211  *
6212  * Revision information 3.1 - 3.105 from log deleted 1998/04/10 kardel
6213  *
6214  */