/* * Revision 2.3 90/09/20 13:14:18 * Open aperture for AIX3.1 to 512 msec, since settimeofday doesn't get * it very close. * On both AIX systems use "signed char" for precision. * * Revision 2.2 90/09/19 16:39:28 * Include so sys_name specific conditionals work. * On hp set clock phase to 5. * On sun set clock max to .5 sec. * Define a type called s_char which is really a signed character. Use this * in both packet structures. * * Revision 2.1 90/08/07 19:22:47 * Start with clean version to sync test and dev trees. * * Revision 1.11 90/05/24 16:18:08 * Changed CLOCK_PHASE for AIX from 8 to 5. * * Revision 1.10 90/05/21 13:50:30 * Set CLOCK_MAX to 1.167 (one second plus one tick) for AIX, since it doesn't do * too well. * * Revision 1.9 89/05/24 12:25:13 * Latest May 18, Version 4.3 release from UMD. * * Revision 3.4.1.7 89/05/18 18:22:14 * A few extra diddles in ntp.h for the reference clock feature. * * Revision 3.4.1.6 89/05/03 15:11:06 * Specify default file for drift value and more peer flag definitions to * reflect various stages of clock selection critera. * * Revision 3.4.1.5 89/04/10 15:55:42 * Provide default value for number of bits/byte if not defined. Compute the * Window shift mask inside of conditional code on XTAL so we get the correct * value if configured without a crystal controled clock (!!) * * Revision 3.4.1.4 89/03/31 16:34:50 * Add bit in flags which allow a peer to be synced to. Changed a char to a bit * field so that it is always signed. * * Revision 3.4.1.3 89/03/29 12:26:18 * Removed some unused #defines. Replaced MAXSTRATUM with NTP_INFIN per new * spec. The variable 'mode' in the peer structure has been renamed 'hmode' * per the new spec. * * Revision 3.4.1.2 89/03/22 18:28:18 * patch3: Use new RCS headers. * * Revision 3.4.1.1 89/03/20 00:02:53 * 1 * * Revision 3.4 89/03/17 18:37:00 * Latest test release. * * Revision 3.3.1.1 89/03/17 18:23:49 * Change CLOCK_FACTOR to be a power of 2. * * Revision 3.3 89/03/15 14:19:36 * New baseline for next release. * * Revision 3.2.1.2 89/03/15 13:46:52 * The version number for that particular flavor of ntpd <--> ntpdc interaction * is now defined by NTPDC_VERSION. The packet format for the ntpdc program * has changed slightly to improve robustness when dealing with multiple packets * of status data. * * Revision 3.2.1.1 89/03/09 17:11:24 * patch1: Updated constants, which were previously in incorrect units. * * Revision 3.2 89/03/07 18:21:45 * New version of UNIX NTP daemon and software based on the 6 March 1989 * draft of the new NTP protocol specification. This version doesn't * implement authentication, and accepts and send only NTP Version 1 * packets. * * Revision 3.1.1.1 89/02/15 08:54:42 * *** empty log message *** * * * Revision 3.1 89/01/30 14:43:07 * Second UNIX NTP test release. * * Revision 3.0 88/12/12 16:01:07 * Test release of new UNIX NTP software. This version should conform to the * revised NTP protocol specification. * */ #include /* include this, just to make sure */ #ifndef FD_SET #define NFDBITS 32 #define FD_SETSIZE 32 #define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS))) #define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS))) #define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS))) #define FD_ZERO(p) bzero((char *)(p), sizeof(*(p))) #endif #ifndef NBBY #define NBBY 8 /* number of bits per byte */ #endif #define MAXNETIF 10 struct intf { int fd; char *name; struct sockaddr_in sin; struct sockaddr_in bcast; struct sockaddr_in mask; int uses; int if_flags; }; extern struct intf addrs[]; extern int nintf; /* * Definitions for the masses */ #define JAN_1970 2208988800 /* 1970 - 1900 in seconds */ /* * Daemon specific (ntpd.c) */ #define SHIFT_MASK 0xff /* number of intervals to wait */ #ifndef WAYTOOBIG #define WAYTOOBIG 1000.0 /* Too many seconds to correct, something is * really wrong */ #endif #ifndef XTAL #define XTAL 1 /* crystal controlled clock by default */ #endif #ifndef NTPINITFILE #define NTPINITFILE "/etc/ntp.conf" #endif #ifndef NTPDRIFTCOMP #define NTPDRIFTCOMP "/etc/ntp.drift" #endif struct list { struct ntp_peer *head; struct ntp_peer *tail; int members; }; #define STRMCMP(a, cond, b) \ (((a) == UNSPECIFIED ? NTP_INFIN+1 : a) cond \ ((b) == UNSPECIFIED ? NTP_INFIN+1 : (b))) /* * Definitions outlined in the NTP spec */ #define NTP_VERSION 1 #define NTP_PORT 123 /* for ref only (see /etc/services) */ #define NTP_INFIN 15 #define NTP_MAXAGE 86400 #define NTP_MAXSKW 0.01 /* seconds */ #define NTP_MINDIST 0.02 /* seconds */ #ifdef REFCLOCK #define NTP_REFMAXSKW 0.001 /* seconds (for REFCLOCKs) */ #define NTP_REFMINDIST 0.001 /* seconds (for REFCLOCKs) */ #endif #define NTP_MINPOLL 6 /* (64) seconds between messages */ #define NTP_MAXPOLL 10 /* (1024) secs to poll */ #define NTP_WINDOW 8 /* size of shift register */ #define NTP_MAXWGT 8 /* maximum allowable dispersion */ #define NTP_MAXLIST 5 /* max size of selection list */ #define NTP_MAXSTRA 2 /* max number of strata in selection list */ #define X_NTP_CANDIDATES 64 /* number of peers to consider when doing clock selection */ #define NTP_SELECT 0.75 /* weight used to compute dispersion */ #define PEER_MAXDISP 64.0 /* Maximum dispersion */ #define PEER_THRESHOLD 0.5 /* dispersion threshold */ #define PEER_FILTER 0.5 /* filter weight */ #if XTAL == 0 #define PEER_SHIFT 4 #define NTP_WINDOW_SHIFT_MASK 0x0f #else #define PEER_SHIFT 8 #define NTP_WINDOW_SHIFT_MASK 0xff #endif /* * 5.1 Uniform Phase Adjustments * Clock parameters */ #define CLOCK_UPDATE 8 /* update interval (1<> for timing */ /* * first order offsets */ struct filter { short samples; /* <> */ double offset[PEER_SHIFT]; double delay[PEER_SHIFT]; } filter; /* filter, clear */ double estdelay; /* filter */ double estoffset; /* filter */ double estdisp; /* filter */ afs_uint32 pkt_sent; /* <> */ afs_uint32 pkt_rcvd; /* <> */ afs_uint32 pkt_dropped; /* <> */ }; /* ================= table 3.1: System Variables ================= */ struct sysdata { /* procedure */ u_char leap; /* clock update */ u_char stratum; /* clock update */ short precision; /* system */ struct s_fixedpt distance; /* clock update */ struct s_fixedpt dispersion; /* clock update */ afs_uint32 refid; /* clock update */ struct l_fixedpt reftime; /* clock update */ int hold; /* clock update */ struct ntp_peer *peer; /* selection */ int maxpeers; /* <> */ u_char filler; /* put here for %&*%$$ SUNs */ }; #define NTPDC_VERSION 2 /* * These structures are used to pass information to the ntpdc (control) * program. They are unique to this implementation and not part of the * NTP specification. */ struct clockinfo { afs_uint32 net_address; afs_uint32 my_address; u_short port; u_short flags; afs_uint32 pkt_sent; afs_uint32 pkt_rcvd; afs_uint32 pkt_dropped; afs_uint32 timer; u_char leap; u_char stratum; u_char ppoll; s_char(precision); u_char hpoll; u_char filler1; u_short reach; afs_int32 estdisp; /* scaled by 1000 */ afs_int32 estdelay; /* in milliseconds */ afs_int32 estoffset; /* in milliseconds */ afs_uint32 refid; struct l_fixedpt reftime; struct info_filter { short index; short filler; afs_int32 offset[PEER_SHIFT]; /* in milliseconds */ afs_int32 delay[PEER_SHIFT]; /* in milliseconds */ } info_filter; }; struct ntpinfo { u_char version; u_char type; /* request type (stratum in ntp packets) */ u_char count; /* number of entries in this packet */ u_char seq; /* sequence number of this packet */ u_char npkts; /* total number of packets */ u_char peers; u_char fill3; u_char fill4; };