dist/ntp/include/ntp_machine.h

   1 /*      $NetBSD: ntp_machine.h,v 1.3 2006/06/11 19:34:09 kardel Exp $   */
   2
   3 /*
   4  * Collect all machine dependent idiosyncrasies in one place.
   5  */
   6
   7 #ifndef __ntp_machine
   8 #define __ntp_machine
   9
  10 #ifdef HAVE_CONFIG_H
  11 # include <config.h>
  12 #endif
  13
  14 #ifdef TIME_WITH_SYS_TIME
  15 # include <sys/time.h>
  16 # include <time.h>
  17 #else
  18 # ifdef HAVE_SYS_TIME_H
  19 #  include <sys/time.h>
  20 # else
  21 #  include <time.h>
  22 # endif
  23 #endif
  24
  25 #include "ntp_proto.h"
  26
  27 /*
  28
  29                          HEY!  CHECK THIS OUT!
  30
  31   The first half of this file is obsolete, and is only there to help
  32   reconcile "what went before" with "current behavior".
  33
  34   The per-system SYS_* #defins ARE NO LONGER USED, with the temporary
  35   exception of SYS_WINNT.
  36
  37   If you find a hunk of code that is bracketed by a SYS_* macro and you
  38   *know* that it is still needed, please let us know.  In many cases the
  39   code fragment is now handled somewhere else by autoconf choices.
  40
  41 */
  42
  43 /*
  44
  45 INFO ON NEW KERNEL PLL SYS CALLS
  46
  47   NTP_SYSCALLS_STD      - use the "normal" ones
  48   NTP_SYSCALL_GET       - SYS_ntp_gettime id
  49   NTP_SYSCALL_ADJ       - SYS_ntp_adjtime id
  50   NTP_SYSCALLS_LIBC - ntp_adjtime() and ntp_gettime() are in libc.
  51
  52 HOW TO GET IP INTERFACE INFORMATION
  53
  54   Some UNIX V.4 machines implement a sockets library on top of
  55   streams. For these systems, you must use send the SIOCGIFCONF down
  56   the stream in an I_STR ioctl. This ususally also implies
  57   USE_STREAMS_DEVICE FOR IF_CONFIG. Dell UNIX is a notable exception.
  58
  59 WHAT DOES IOCTL(SIOCGIFCONF) RETURN IN THE BUFFER
  60
  61   UNIX V.4 machines implement a sockets library on top of streams.
  62   When requesting the IP interface configuration with an ioctl(2) calll,
  63   an array of ifreq structures are placed in the provided buffer.  Some
  64   implementations also place the length of the buffer information in
  65   the first integer position of the buffer.
  66
  67   SIZE_RETURNED_IN_BUFFER - size integer is in the buffer
  68
  69 WILL IOCTL(SIOCGIFCONF) WORK ON A SOCKET
  70
  71   Some UNIX V.4 machines do not appear to support ioctl() requests for the
  72   IP interface configuration on a socket.  They appear to require the use
  73   of the streams device instead.
  74
  75   USE_STREAMS_DEVICE_FOR_IF_CONFIG - use the /dev/ip device for configuration
  76
  77 MISC
  78
  79   HAVE_PROTOTYPES       - Prototype functions
  80   DOSYNCTODR            - Resync TODR clock  every hour.
  81   RETSIGTYPE            - Define signal function type.
  82   NO_SIGNED_CHAR_DECL - No "signed char" see include/ntp.h
  83   LOCK_PROCESS          - Have plock.
  84 */
  85
  86 /*
  87  * Set up for prototyping (duplicated from ntp_types.h)
  88  */
  89 #ifndef P
  90 #if defined(__STDC__) || defined(HAVE_PROTOTYPES)
  91 #define P(x)    x
  92 #else /* not __STDC__ and not HAVE_PROTOTYPES */
  93 #define P(x)    ()
  94 #endif /* not __STDC__ and not HAVE_PROTOTYPES */
  95 #endif /* P */
  96
  97 #if !defined(HAVE_NTP_ADJTIME) && defined(HAVE___ADJTIMEX)
  98 # define ntp_adjtime __adjtimex
  99 #endif
 100
 101 #if 0
 102
 103 /*
 104  * IRIX 4.X and IRIX 5.x
 105  */
 106 #if defined(SYS_IRIX4)||defined(SYS_IRIX5)
 107 # define ADJTIME_IS_ACCURATE
 108 # define LOCK_PROCESS
 109 #endif
 110
 111 /*
 112  * Ultrix
 113  * Note: posix version has NTP_POSIX_SOURCE and HAVE_SIGNALED_IO
 114  */
 115 #if defined(SYS_ULTRIX)
 116 # define S_CHAR_DEFINED
 117 # define NTP_SYSCALLS_STD
 118 # define HAVE_MODEM_CONTROL
 119 #endif
 120
 121 /*
 122  * AUX
 123  */
 124 #if defined(SYS_AUX2) || defined(SYS_AUX3)
 125 # define NO_SIGNED_CHAR_DECL
 126 # define LOCK_PROCESS
 127 # define NTP_POSIX_SOURCE
 128 /*
 129  * This requires that _POSIX_SOURCE be forced on the
 130  * compiler command flag. We can't do it here since this
 131  * file is included _after_ the system header files and we
 132  * need to let _them_ know we're POSIX. We do this in
 133  * compilers/aux3.gcc...
 134  */
 135 # define LOG_NTP LOG_LOCAL1
 136 #endif
 137
 138 /*
 139  * HPUX
 140  */
 141 #if defined(SYS_HPUX)
 142 # define getdtablesize() sysconf(_SC_OPEN_MAX)
 143 # define setlinebuf(f) setvbuf(f, NULL, _IOLBF, 0)
 144 # define NO_SIGNED_CHAR_DECL
 145 # define LOCK_PROCESS
 146 #endif
 147
 148 /*
 149  * BSD/OS 2.0 and above
 150  */
 151 #if defined(SYS_BSDI)
 152 # define USE_FSETOWNCTTY        /* this funny system demands a CTTY for FSETOWN */
 153 #endif
 154
 155 /*
 156  * FreeBSD 2.0 and above
 157  */
 158 #ifdef SYS_FREEBSD
 159 # define KERNEL_PLL
 160 #endif
 161
 162 /*
 163  * Linux
 164  */
 165 #if defined(SYS_LINUX)
 166 # define ntp_adjtime __adjtimex
 167 #endif
 168
 169 /*
 170  * PTX
 171  */
 172 #if defined(SYS_PTX)
 173 # define LOCK_PROCESS
 174 struct timezone { int __0; };   /* unused placebo */
 175 /*
 176  * no comment !@!
 177  */
 178 typedef unsigned int u_int;
 179 # ifndef        _NETINET_IN_SYSTM_INCLUDED      /* i am about to comment... */
 180 typedef unsigned char u_char;
 181 typedef unsigned short u_short;
 182 typedef unsigned long u_long;
 183 # endif
 184 #endif
 185
 186 /*
 187  * UNIX V.4 on and NCR 3000
 188  */
 189 #if defined(SYS_SVR4)
 190 # define STREAM
 191 # define LOCK_PROCESS
 192 # define SIZE_RETURNED_IN_BUFFER
 193 #endif
 194
 195 /*
 196  * (Univel/Novell) Unixware1 SVR4 on intel x86 processor
 197  */
 198 #if defined(SYS_UNIXWARE1)
 199 /* #define _POSIX_SOURCE */
 200 # define STREAM
 201 # define STREAMS
 202 # undef STEP_SLEW               /* TWO step */
 203 # define LOCK_PROCESS
 204 # define SIZE_RETURNED_IN_BUFFER
 205 # include <sys/sockio.h>
 206 # include <sys/types.h>
 207 # include <netinet/in_systm.h>
 208 #endif
 209
 210 /*
 211  * DomainOS
 212  */
 213 #if defined(SYS_DOMAINOS)
 214 # define NTP_SYSCALLS_STD
 215 /* older versions of domain/os don't have class D */
 216 # ifndef IN_CLASSD
 217 #  define IN_CLASSD(i)          (((long)(i) & 0xf0000000) == 0xe0000000)
 218 #  define IN_CLASSD_NET         0xf0000000
 219 #  define IN_CLASSD_NSHIFT      28
 220 #  define IN_CLASSD_HOST        0xfffffff
 221 #  define IN_MULTICAST(i)       IN_CLASSD(i)
 222 # endif
 223 #endif
 224
 225 /*
 226  * Fujitsu UXP/V
 227  */
 228 #if defined(SYS_UXPV)
 229 # define LOCK_PROCESS
 230 # define SIZE_RETURNED_IN_BUFFER
 231 #endif
 232
 233
 234 #endif /* 0 */
 235
 236 /*
 237  * Define these here for non-Windows NT systems
 238  * SOCKET and INVALID_SOCKET are native macros
 239  * on Windows NT and since they have different
 240  * requirements we use them in the code and
 241  * make them macros for everyone else
 242  */
 243 #ifndef SYS_WINNT
 244 # define SOCKET int
 245 # define INVALID_SOCKET -1
 246 # define SOCKET_ERROR   -1
 247 # define closesocket close
 248 #endif
 249 /*
 250  * Windows NT
 251  */
 252 #if defined(SYS_WINNT)
 253 # if !defined(HAVE_CONFIG_H)  || !defined(__config)
 254 # include <config.h>
 255 # endif /* HAVE_CONFIG_H) */
 256 # include <windows.h>
 257 # include <ws2tcpip.h>
 258 # include <winsock2.h>
 259
 260 # define ifreq _INTERFACE_INFO
 261 # define ifr_flags iiFlags
 262 # define ifr_addr iiAddress.AddressIn
 263 # define ifr_broadaddr iiBroadcastAddress.AddressIn
 264 # define ifr_mask iiNetmask.AddressIn
 265 # define zz_family sin_family
 266
 267 # define S_IFREG _S_IFREG
 268 # define stat _stat
 269 # define isascii __isascii
 270 # define isatty _isatty
 271 # define mktemp _mktemp
 272 # define unlink _unlink
 273 # define fileno _fileno
 274 # define write _write
 275 #ifndef close
 276 # define close _close
 277 #endif
 278 # undef interface
 279 # include <process.h>
 280 #define getpid _getpid
 281 /*
 282  * Defining registers are not a good idea on Windows
 283  * This gets rid of the usage
 284  */
 285 #ifndef register
 286 # define register
 287 #endif
 288  typedef char *caddr_t;
 289 # define vsnprintf _vsnprintf
 290 #endif /* SYS_WINNT */
 291
 292 int ntp_set_tod P((struct timeval *tvp, void *tzp));
 293
 294 #if defined (SYS_CYGWIN32)
 295 #include <windows.h>
 296 #define __int64 long long
 297 #endif
 298
 299 /*casey Tue May 27 15:45:25 SAT 1997*/
 300 #ifdef SYS_VXWORKS
 301
 302 /* casey's new defines */
 303 #define NO_MAIN_ALLOWED         1
 304 #define NO_NETDB                        1
 305 #define NO_RENAME                       1
 306
 307 /* in vxWorks we use FIONBIO, but the others are defined for old systems, so
 308  * all hell breaks loose if we leave them defined we define USE_FIONBIO to
 309  * undefine O_NONBLOCK FNDELAY O_NDELAY where necessary.
 310  */
 311 #define USE_FIONBIO             1
 312 /* end my new defines */
 313
 314 #define TIMEOFDAY               0x0     /* system wide realtime clock */
 315 #define HAVE_GETCLOCK           1       /* configure does not set this ... */
 316 #define HAVE_NO_NICE            1       /* configure does not set this ... */
 317 #define HAVE_RANDOM             1       /* configure does not set this ...  */
 318 #define HAVE_SRANDOM            1       /* configure does not set this ... */
 319
 320 #define NODETACH                1
 321
 322 /* vxWorks specific additions to take care of its
 323  * unix (non)complicance
 324  */
 325
 326 #include "vxWorks.h"
 327 #include "ioLib.h"
 328 #include "taskLib.h"
 329 #include "time.h"
 330
 331 extern int sysClkRateGet P(());
 332
 333 /* usrtime.h
 334  * Bob Herlien's excellent time code find it at:
 335  * ftp://ftp.atd.ucar.edu/pub/vxworks/vx/usrTime.shar
 336  * I would recommend this instead of clock_[g|s]ettime() plus you get
 337  * adjtime() too ... casey
 338  */
 339 /*
 340 extern int        gettimeofday P(( struct timeval *tp, struct timezone *tzp ));
 341 extern int        settimeofday P((struct timeval *, struct timezone *));
 342 extern int        adjtime P(( struct timeval *delta, struct timeval *olddelta ));
 343  */
 344
 345 /* in  machines.c */
 346 extern void sleep P((int seconds));
 347 extern void alarm P((int seconds));
 348 /* machines.c */
 349
 350
 351 /*              this is really this     */
 352 #define getpid          taskIdSelf
 353 #define getclock        clock_gettime
 354 #define fcntl           ioctl
 355 #define _getch          getchar
 356
 357 /* define this away for vxWorks */
 358 #define openlog(x,y)
 359 /* use local defines for these */
 360 #undef min
 361 #undef max
 362
 363 #endif /* SYS_VXWORKS */
 364
 365 #ifdef NO_NETDB
 366 /* These structures are needed for gethostbyname() etc... */
 367 /* structures used by netdb.h */
 368 struct  hostent {
 369         char    *h_name;                                /* official name of host */
 370         char    **h_aliases;                    /* alias list */
 371         int h_addrtype;                                 /* host address type */
 372         int h_length;                                   /* length of address */
 373         char    **h_addr_list;                  /* list of addresses from name server */
 374 #define         h_addr h_addr_list[0]   /* address, for backward compatibility */
 375 };
 376
 377 struct  servent {
 378         char    *s_name;                                /* official service name */
 379         char    **s_aliases;                    /* alias list */
 380         int s_port;                                     /* port # */
 381         char    *s_proto;                               /* protocol to use */
 382 };
 383 extern int h_errno;
 384
 385 #define TRY_AGAIN       2
 386
 387 struct hostent *gethostbyname P((char * netnum));
 388 struct hostent *gethostbyaddr P((char * netnum, int size, int addr_type));
 389 /* type is the protocol */
 390 struct servent *getservbyname P((char *name, char *type));
 391 #endif  /* NO_NETDB */
 392
 393 #ifdef NO_MAIN_ALLOWED
 394 /* we have no main routines so lets make a plan */
 395 #define CALL(callname, progname, callmain) \
 396         extern int callmain (int,char**); \
 397         void callname (a0,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) \
 398                 char *a0;  \
 399                 char *a1;  \
 400                 char *a2;  \
 401                 char *a3;  \
 402                 char *a4;  \
 403                 char *a5;  \
 404                 char *a6;  \
 405                 char *a7;  \
 406                 char *a8;  \
 407                 char *a9;  \
 408                 char *a10; \
 409         { \
 410           char *x[11]; \
 411           int argc; \
 412           char *argv[] = {progname,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL}; \
 413           int i; \
 414           for (i=0;i<11;i++) \
 415            x[i] = NULL; \
 416           x[0] = a0; \
 417           x[1] = a1; \
 418           x[2] = a2; \
 419           x[3] = a3; \
 420           x[4] = a4; \
 421           x[5] = a5; \
 422           x[6] = a6; \
 423           x[7] = a7; \
 424           x[8] = a8; \
 425           x[9] = a9; \
 426           x[10] = a10; \
 427           argc=1; \
 428           for (i=0; i<11;i++) \
 429                 if (x[i]) \
 430                 { \
 431                   argv[argc++] = x[i];  \
 432                 } \
 433          callmain(argc,argv);  \
 434         }
 435 #endif /* NO_MAIN_ALLOWED */
 436 /*casey Tue May 27 15:45:25 SAT 1997*/
 437
 438 /*
 439  * Here's where autoconfig starts to take over
 440  */
 441 #ifdef HAVE_SYS_STROPTS_H
 442 # ifdef HAVE_SYS_STREAM_H
 443 #  define STREAM
 444 # endif
 445 #endif
 446
 447 #ifndef RETSIGTYPE
 448 # if defined(NTP_POSIX_SOURCE)
 449 #  define       RETSIGTYPE      void
 450 # else
 451 #  define       RETSIGTYPE      int
 452 # endif
 453 #endif
 454
 455 #ifdef  NTP_SYSCALLS_STD
 456 # ifndef        NTP_SYSCALL_GET
 457 #  define       NTP_SYSCALL_GET 235
 458 # endif
 459 # ifndef        NTP_SYSCALL_ADJ
 460 #  define       NTP_SYSCALL_ADJ 236
 461 # endif
 462 #endif  /* NTP_SYSCALLS_STD */
 463
 464 #ifdef MPE
 465 # include <sys/types.h>
 466 # include <netinet/in.h>
 467 # include <stdio.h>
 468 # include <time.h>
 469
 470 /* missing functions that are easily renamed */
 471
 472 # define _getch getchar
 473
 474 /* special functions that require MPE-specific wrappers */
 475
 476 # define bind   __ntp_mpe_bind
 477 # define fcntl  __ntp_mpe_fcntl
 478
 479 /* standard macros missing from MPE include files */
 480
 481 # define IN_CLASSD(i)   ((((long)(i))&0xf0000000)==0xe0000000)
 482 # define IN_MULTICAST IN_CLASSD
 483 # define ITIMER_REAL 0
 484 # define MAXHOSTNAMELEN 64
 485
 486 /* standard structures missing from MPE include files */
 487
 488 struct itimerval {
 489         struct timeval it_interval;    /* timer interval */
 490         struct timeval it_value;       /* current value */
 491 };
 492
 493 /* various declarations to make gcc stop complaining */
 494
 495 extern int __filbuf(FILE *);
 496 extern int __flsbuf(int, FILE *);
 497 extern int gethostname(char *, int);
 498 extern unsigned long inet_addr(char *);
 499 extern char *strdup(const char *);
 500
 501 /* miscellaneous NTP macros */
 502
 503 # define HAVE_NO_NICE
 504 #endif /* MPE */
 505
 506 #ifdef HAVE_RTPRIO
 507 # define HAVE_NO_NICE
 508 #else
 509 # ifdef HAVE_SETPRIORITY
 510 #  define HAVE_BSD_NICE
 511 # else
 512 #  ifdef HAVE_NICE
 513 #       define HAVE_ATT_NICE
 514 #  endif
 515 # endif
 516 #endif
 517
 518 #if !defined(HAVE_ATT_NICE) \
 519         && !defined(HAVE_BSD_NICE) \
 520         && !defined(HAVE_NO_NICE) \
 521         && !defined(SYS_WINNT)
 522 #include "ERROR: You must define one of the HAVE_xx_NICE defines!"
 523 #endif
 524
 525 /*
 526  * use only one tty model - no use in initialising
 527  * a tty in three ways
 528  * HAVE_TERMIOS is preferred over HAVE_SYSV_TTYS over HAVE_BSD_TTYS
 529  */
 530
 531 #ifdef HAVE_TERMIOS_H
 532 # define HAVE_TERMIOS
 533 #else
 534 # ifdef HAVE_TERMIO_H
 535 #  define HAVE_SYSV_TTYS
 536 # else
 537 #  ifdef HAVE_SGTTY_H
 538 #       define HAVE_BSD_TTYS
 539 #  endif
 540 # endif
 541 #endif
 542
 543 #ifdef HAVE_TERMIOS
 544 # undef HAVE_BSD_TTYS
 545 # undef HAVE_SYSV_TTYS
 546 #endif
 547
 548 #ifndef HAVE_TIMEGM
 549 extern time_t   timegm          P((struct tm *));
 550 #endif
 551
 552 #ifdef HAVE_SYSV_TTYS
 553 # undef HAVE_BSD_TTYS
 554 #endif
 555
 556 #if !defined(SYS_WINNT) && !defined(VMS) && !defined(SYS_VXWORKS)
 557 # if    !defined(HAVE_SYSV_TTYS) \
 558         && !defined(HAVE_BSD_TTYS) \
 559         && !defined(HAVE_TERMIOS)
 560 #include "ERROR: no tty type defined!"
 561 # endif
 562 #endif /* SYS_WINNT || VMS      || SYS_VXWORKS*/
 563
 564 #ifdef  WORDS_BIGENDIAN
 565 # define        XNTP_BIG_ENDIAN 1
 566 #else
 567 # define        XNTP_LITTLE_ENDIAN      1
 568 #endif
 569
 570 /*
 571  * Byte order woes.
 572  * This used to be resolved by calling ntohl() and htonl() to swap things
 573  * around, but this turned out to be quite costly on Vaxes where those
 574  * things are actual functions.  The code now straightens out byte
 575  * order troubles on its own, with no performance penalty for little
 576  * end first machines, but at great expense to cleanliness.
 577  */
 578 #if !defined(XNTP_BIG_ENDIAN) && !defined(XNTP_LITTLE_ENDIAN)
 579         /*
 580          * Pick one or the other.
 581          */
 582         BYTE_ORDER_NOT_DEFINED_FOR_AUTHENTICATION
 583 #endif
 584
 585 #if defined(XNTP_BIG_ENDIAN) && defined(XNTP_LITTLE_ENDIAN)
 586         /*
 587          * Pick one or the other.
 588          */
 589         BYTE_ORDER_NOT_DEFINED_FOR_AUTHENTICATION
 590 #endif
 591
 592 #endif /* __ntp_machine */