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Diffstat (limited to 'contrib/ntp/include/ntp.h')
-rw-r--r-- | contrib/ntp/include/ntp.h | 874 |
1 files changed, 0 insertions, 874 deletions
diff --git a/contrib/ntp/include/ntp.h b/contrib/ntp/include/ntp.h deleted file mode 100644 index 1ce302b..0000000 --- a/contrib/ntp/include/ntp.h +++ /dev/null @@ -1,874 +0,0 @@ -/* - * ntp.h - NTP definitions for the masses - */ -#ifndef NTP_H -#define NTP_H - -#include "ntp_types.h" -#include <math.h> -#ifdef OPENSSL -#include "ntp_crypto.h" -#endif /* OPENSSL */ - -/* - * Calendar arithmetic - contributed by G. Healton - */ -#define YEAR_BREAK 500 /* years < this are tm_year values: - * Break < AnyFourDigitYear && Break > - * Anytm_yearYear */ - -#define YEAR_PIVOT 98 /* 97/98: years < this are year 2000+ - * FYI: official UNIX pivot year is - * 68/69 */ - -/* - * Number of Days since 1 BC Gregorian to 1 January of given year - */ -#define julian0(year) (((year) * 365 ) + ((year) > 0 ? (((year) + 3) \ - / 4 - ((year - 1) / 100) + ((year - 1) / \ - 400)) : 0)) - -/* - * Number of days since start of NTP time to 1 January of given year - */ -#define ntp0(year) (julian0(year) - julian0(1900)) - -/* - * Number of days since start of UNIX time to 1 January of given year - */ -#define unix0(year) (julian0(year) - julian0(1970)) - -/* - * LEAP YEAR test for full 4-digit years (e.g, 1999, 2010) - */ -#define isleap_4(y) ((y) % 4 == 0 && !((y) % 100 == 0 && !(y % \ - 400 == 0))) - -/* - * LEAP YEAR test for tm_year (struct tm) years (e.g, 99, 110) - */ -#define isleap_tm(y) ((y) % 4 == 0 && !((y) % 100 == 0 && !(((y) \ - + 1900) % 400 == 0))) - -/* - * to convert simple two-digit years to tm_year style years: - * - * if (year < YEAR_PIVOT) - * year += 100; - * - * to convert either two-digit OR tm_year years to four-digit years: - * - * if (year < YEAR_PIVOT) - * year += 100; - * - * if (year < YEAR_BREAK) - * year += 1900; - */ - -/* - * How to get signed characters. On machines where signed char works, - * use it. On machines where signed char doesn't work, char had better - * be signed. - */ -#ifdef NEED_S_CHAR_TYPEDEF -# if SIZEOF_SIGNED_CHAR -typedef signed char s_char; -# else -typedef char s_char; -# endif - /* XXX: Why is this sequent bit INSIDE this test? */ -# ifdef sequent -# undef SO_RCVBUF -# undef SO_SNDBUF -# endif -#endif -#ifndef TRUE -# define TRUE 1 -#endif /* TRUE */ -#ifndef FALSE -# define FALSE 0 -#endif /* FALSE */ - -/* - * NTP protocol parameters. See section 3.2.6 of the specification. - */ -#define NTP_VERSION ((u_char)4) /* current version number */ -#define NTP_OLDVERSION ((u_char)1) /* oldest credible version */ -#define NTP_PORT 123 /* included for non-unix machines */ - -/* - * Poll interval parameters - */ -#define NTP_UNREACH 16 /* poll interval backoff count */ -#define NTP_MINPOLL 4 /* log2 min poll interval (16 s) */ -#define NTP_MINDPOLL 6 /* log2 default min poll (64 s) */ -#define NTP_MAXDPOLL 10 /* log2 default max poll (~17 m) */ -#define NTP_MAXPOLL 17 /* log2 max poll interval (~36 h) */ -#define NTP_BURST 8 /* packets in burst */ -#define BURST_DELAY 2 /* interburst delay (s) */ -#define RESP_DELAY 1 /* crypto response delay (s) */ - -/* - * Clock filter algorithm tuning parameters - */ -#define MINDISPERSE .01 /* min dispersion */ -#define MAXDISPERSE 16. /* max dispersion */ -#define NTP_SHIFT 8 /* clock filter stages */ -#define NTP_FWEIGHT .5 /* clock filter weight */ - -/* - * Selection algorithm tuning parameters - */ -#define NTP_MINCLOCK 4 /* minimum survivors */ -#define NTP_MAXCLOCK 50 /* maximum candidates */ -#define MAXDISTANCE 1. /* max root distance */ -#define CLOCK_SGATE 3. /* popcorn spike gate */ -#define HUFFPUFF 900 /* huff-n'-puff sample interval (s) */ -#define HYST .5 /* anti-clockhop hysteresis */ -#define HYST_TC .875 /* anti-clockhop hysteresis decay */ -#define MAX_TTL 8 /* max ttl mapping vector size */ -#define NTP_MAXEXTEN 1024 /* maximum extension field size */ - -/* - * Miscellaneous stuff - */ -#define NTP_MAXKEY 65535 /* maximum authentication key number */ - -/* - * Limits of things - */ -#define MAXFILENAME 128 /* max length of file name */ -#define MAXHOSTNAME 512 /* max length of host/node name */ -#define NTP_MAXSTRLEN 256 /* maximum string length */ -#define MAXINTERFACES 512 /* max number of interfaces */ - -/* - * Operations for jitter calculations (these use doubles). - * - * Note that we carefully separate the jitter component from the - * dispersion component (frequency error plus precision). The frequency - * error component is computed as CLOCK_PHI times the difference between - * the epoch of the time measurement and the reference time. The - * precision componen is computed as the square root of the mean of the - * squares of a zero-mean, uniform distribution of unit maximum - * amplitude. Whether this makes statistical sense may be arguable. - */ -#define SQUARE(x) ((x) * (x)) -#define SQRT(x) (sqrt(x)) -#define DIFF(x, y) (SQUARE((x) - (y))) -#define LOGTOD(a) ((a) < 0 ? 1. / (1L << -(a)) : \ - 1L << (int)(a)) /* log2 to double */ -#define UNIVAR(x) (SQUARE(.28867513 * LOGTOD(x))) /* std uniform distr */ -#define ULOGTOD(a) (1L << (int)(a)) /* ulog2 to double */ - -#define EVENT_TIMEOUT 0 /* one second, that is */ - -/* - * The interface structure is used to hold the addresses and socket - * numbers of each of the interfaces we are using. - */ -struct interface { - SOCKET fd; /* socket this is opened on */ - SOCKET bfd; /* socket for receiving broadcasts */ - struct sockaddr_storage sin; /* interface address */ - struct sockaddr_storage bcast; /* broadcast address */ - struct sockaddr_storage mask; /* interface mask */ - char name[32]; /* name of interface */ - int flags; /* interface flags */ - int last_ttl; /* last TTL specified */ - u_int addr_refid; /* IPv4 addr or IPv6 hash */ - int num_mcast; /* No. of IP addresses in multicast socket */ - volatile long received; /* number of incoming packets */ - long sent; /* number of outgoing packets */ - long notsent; /* number of send failures */ -}; - -/* - * Flags for interfaces - */ -#define INT_UP 1 /* Interface is up */ -#define INT_PPP 2 /* Point-to-point interface */ -#define INT_LOOPBACK 4 /* the loopback interface */ -#define INT_BROADCAST 8 /* can broadcast out this interface */ -#define INT_MULTICAST 16 /* multicasting enabled */ -#define INT_BCASTOPEN 32 /* broadcast socket is open */ - -/* - * Define flasher bits (tests 1 through 11 in packet procedure) - * These reveal the state at the last grumble from the peer and are - * most handy for diagnosing problems, even if not strictly a state - * variable in the spec. These are recorded in the peer structure. - */ -#define TEST1 0x0001 /* duplicate packet received */ -#define TEST2 0x0002 /* bogus packet received */ -#define TEST3 0x0004 /* protocol unsynchronized */ -#define TEST4 0x0008 /* access denied */ -#define TEST5 0x0010 /* authentication failed */ -#define TEST6 0x0020 /* peer clock unsynchronized */ -#define TEST7 0x0040 /* peer stratum out of bounds */ -#define TEST8 0x0080 /* root delay/dispersion bounds check */ -#define TEST9 0x0100 /* peer delay/dispersion bounds check */ -#define TEST10 0x0200 /* autokey failed */ -#define TEST11 0x0400 /* proventic not confirmed */ - -/* - * The peer structure. Holds state information relating to the guys - * we are peering with. Most of this stuff is from section 3.2 of the - * spec. - */ -struct peer { - struct peer *next; /* pointer to next association */ - struct peer *ass_next; /* link pointer in associd hash */ - struct sockaddr_storage srcadr; /* address of remote host */ - struct interface *dstadr; /* pointer to address on local host */ - associd_t associd; /* association ID */ - u_char version; /* version number */ - u_char hmode; /* local association mode */ - u_char hpoll; /* local poll interval */ - u_char kpoll; /* last poll interval */ - u_char minpoll; /* min poll interval */ - u_char maxpoll; /* max poll interval */ - u_char burst; /* packets remaining in burst */ - u_int flags; /* association flags */ - u_char cast_flags; /* additional flags */ - u_int flash; /* protocol error test tally bits */ - u_char last_event; /* last peer error code */ - u_char num_events; /* number of error events */ - u_char ttl; /* ttl/refclock mode */ - - /* - * Variables used by reference clock support - */ - struct refclockproc *procptr; /* refclock structure pointer */ - u_char refclktype; /* reference clock type */ - u_char refclkunit; /* reference clock unit number */ - u_char sstclktype; /* clock type for system status word */ - - /* - * Variables set by received packet - */ - u_char leap; /* local leap indicator */ - u_char pmode; /* remote association mode */ - u_char stratum; /* remote stratum */ - s_char precision; /* remote clock precision */ - u_char ppoll; /* remote poll interval */ - u_int32 refid; /* remote reference ID */ - l_fp reftime; /* update epoch */ - - /* - * Variables used by authenticated client - */ - keyid_t keyid; /* current key ID */ -#ifdef OPENSSL -#define clear_to_zero assoc - associd_t assoc; /* peer association ID */ - u_int32 crypto; /* peer status word */ - EVP_PKEY *pkey; /* public key */ - const EVP_MD *digest; /* message digest algorithm */ - char *subject; /* certificate subject name */ - char *issuer; /* certificate issuer name */ - keyid_t pkeyid; /* previous key ID */ - keyid_t pcookie; /* peer cookie */ - EVP_PKEY *ident_pkey; /* identity key */ - tstamp_t fstamp; /* identity filestamp */ - BIGNUM *iffval; /* IFF/GQ challenge */ - BIGNUM *grpkey; /* GQ group key */ - struct value cookval; /* cookie values */ - struct value recval; /* receive autokey values */ - struct value tai_leap; /* leapseconds values */ - struct exten *cmmd; /* extension pointer */ - - /* - * Variables used by authenticated server - */ - keyid_t *keylist; /* session key ID list */ - int keynumber; /* current key number */ - struct value encrypt; /* send encrypt values */ - struct value sndval; /* send autokey values */ -#else /* OPENSSL */ -#define clear_to_zero status -#endif /* OPENSSL */ - - /* - * Ephemeral state variables - */ - u_char status; /* peer status */ - u_char reach; /* reachability register */ - u_long epoch; /* reference epoch */ - u_short filter_nextpt; /* index into filter shift register */ - double filter_delay[NTP_SHIFT]; /* delay shift register */ - double filter_offset[NTP_SHIFT]; /* offset shift register */ - double filter_disp[NTP_SHIFT]; /* dispersion shift register */ - u_long filter_epoch[NTP_SHIFT]; /* epoch shift register */ - u_char filter_order[NTP_SHIFT]; /* filter sort index */ - l_fp org; /* originate time stamp */ - l_fp rec; /* receive time stamp */ - l_fp xmt; /* transmit time stamp */ - double offset; /* peer clock offset */ - double delay; /* peer roundtrip delay */ - double jitter; /* peer jitter (squares) */ - double disp; /* peer dispersion */ - double estbdelay; /* clock offset to broadcast server */ - double hyst; /* anti-clockhop hysteresis */ - - /* - * Variables set by received packet - */ - double rootdelay; /* roundtrip delay to primary clock */ - double rootdispersion; /* dispersion to primary clock */ - - /* - * End of clear-to-zero area - */ - u_long update; /* receive epoch */ -#define end_clear_to_zero update - u_int unreach; /* unreachable count */ - u_long outdate; /* send time last packet */ - u_long nextdate; /* send time next packet */ - u_long nextaction; /* peer local activity timeout (refclocks mainly) */ - void (*action) P((struct peer *)); /* action timeout function */ - /* - * Statistic counters - */ - u_long timereset; /* time stat counters were reset */ - u_long timereceived; /* last packet received time */ - u_long timereachable; /* last reachable/unreachable time */ - - u_long sent; /* packets sent */ - u_long received; /* packets received */ - u_long processed; /* packets processed by the protocol */ - u_long badauth; /* packets cryptosum failed */ - u_long bogusorg; /* packets bogus origin */ - u_long oldpkt; /* packets duplicate packet */ - u_long seldisptoolarge; /* packets dispersion to large*/ - u_long selbroken; /* not used */ - u_long rank; /* number of times selected or in cluster */ -}; - -/* - * Values for peer.leap, sys_leap - */ -#define LEAP_NOWARNING 0x0 /* normal, no leap second warning */ -#define LEAP_ADDSECOND 0x1 /* last minute of day has 61 seconds */ -#define LEAP_DELSECOND 0x2 /* last minute of day has 59 seconds */ -#define LEAP_NOTINSYNC 0x3 /* overload, clock is free running */ - -/* - * Values for peer.mode - */ -#define MODE_UNSPEC 0 /* unspecified (old version) */ -#define MODE_ACTIVE 1 /* symmetric active */ -#define MODE_PASSIVE 2 /* symmetric passive */ -#define MODE_CLIENT 3 /* client mode */ -#define MODE_SERVER 4 /* server mode */ -#define MODE_BROADCAST 5 /* broadcast mode */ -#define MODE_CONTROL 6 /* control mode packet */ -#define MODE_PRIVATE 7 /* implementation defined function */ -#define MODE_BCLIENT 8 /* broadcast client mode */ - -/* - * Values for peer.stratum, sys_stratum - */ -#define STRATUM_REFCLOCK ((u_char)0) /* default stratum */ -/* A stratum of 0 in the packet is mapped to 16 internally */ -#define STRATUM_PKT_UNSPEC ((u_char)0) /* unspecified in packet */ -#define STRATUM_UNSPEC ((u_char)16) /* unspecified */ - -/* - * Values for peer.flags - */ -#define FLAG_CONFIG 0x0001 /* association was configured */ -#define FLAG_AUTHENABLE 0x0002 /* authentication required */ -#define FLAG_AUTHENTIC 0x0004 /* last message was authentic */ -#define FLAG_SKEY 0x0008 /* autokey authentication */ -#define FLAG_MCAST 0x0010 /* multicast client mode */ -#define FLAG_REFCLOCK 0x0020 /* this is actually a reference clock */ -#define FLAG_SYSPEER 0x0040 /* this is one of the selected peers */ -#define FLAG_PREFER 0x0080 /* this is the preferred peer */ -#define FLAG_BURST 0x0100 /* burst mode */ -#define FLAG_IBURST 0x0200 /* initial burst mode */ -#define FLAG_NOSELECT 0x0400 /* this is a "noselect" peer */ -#define FLAG_ASSOC 0x0800 /* autokey request */ - -/* - * Definitions for the clear() routine. We use memset() to clear - * the parts of the peer structure which go to zero. These are - * used to calculate the start address and length of the area. - */ -#define CLEAR_TO_ZERO(p) ((char *)&((p)->clear_to_zero)) -#define END_CLEAR_TO_ZERO(p) ((char *)&((p)->end_clear_to_zero)) -#define LEN_CLEAR_TO_ZERO (END_CLEAR_TO_ZERO((struct peer *)0) \ - - CLEAR_TO_ZERO((struct peer *)0)) -#define CRYPTO_TO_ZERO(p) ((char *)&((p)->clear_to_zero)) -#define END_CRYPTO_TO_ZERO(p) ((char *)&((p)->end_clear_to_zero)) -#define LEN_CRYPTO_TO_ZERO (END_CRYPTO_TO_ZERO((struct peer *)0) \ - - CRYPTO_TO_ZERO((struct peer *)0)) - -/* - * Reference clock identifiers (for pps signal) - */ -#define PPSREFID (u_int32)"PPS " /* used when pps controls stratum>1 */ - -/* - * Reference clock types. Added as necessary. - */ -#define REFCLK_NONE 0 /* unknown or missing */ -#define REFCLK_LOCALCLOCK 1 /* external (e.g., lockclock) */ -#define REFCLK_GPS_TRAK 2 /* TRAK 8810 GPS Receiver */ -#define REFCLK_WWV_PST 3 /* PST/Traconex 1020 WWV/H */ -#define REFCLK_SPECTRACOM 4 /* Spectracom (generic) Receivers */ -#define REFCLK_TRUETIME 5 /* TrueTime (generic) Receivers */ -#define REFCLK_IRIG_AUDIO 6 /* IRIG-B/W audio decoder */ -#define REFCLK_CHU_AUDIO 7 /* CHU audio demodulator/decoder */ -#define REFCLK_PARSE 8 /* generic driver (usually DCF77,GPS,MSF) */ -#define REFCLK_GPS_MX4200 9 /* Magnavox MX4200 GPS */ -#define REFCLK_GPS_AS2201 10 /* Austron 2201A GPS */ -#define REFCLK_GPS_ARBITER 11 /* Arbiter 1088A/B/ GPS */ -#define REFCLK_IRIG_TPRO 12 /* KSI/Odetics TPRO-S IRIG */ -#define REFCLK_ATOM_LEITCH 13 /* Leitch CSD 5300 Master Clock */ -#define REFCLK_MSF_EES 14 /* EES M201 MSF Receiver */ -#define REFCLK_GPSTM_TRUE 15 /* OLD TrueTime GPS/TM-TMD Receiver */ -#define REFCLK_IRIG_BANCOMM 16 /* Bancomm GPS/IRIG Interface */ -#define REFCLK_GPS_DATUM 17 /* Datum Programmable Time System */ -#define REFCLK_NIST_ACTS 18 /* NIST Auto Computer Time Service */ -#define REFCLK_WWV_HEATH 19 /* Heath GC1000 WWV/WWVH Receiver */ -#define REFCLK_GPS_NMEA 20 /* NMEA based GPS clock */ -#define REFCLK_GPS_VME 21 /* TrueTime GPS-VME Interface */ -#define REFCLK_ATOM_PPS 22 /* 1-PPS Clock Discipline */ -#define REFCLK_PTB_ACTS 23 /* PTB Auto Computer Time Service */ -#define REFCLK_USNO 24 /* Naval Observatory dialup */ -#define REFCLK_GPS_HP 26 /* HP 58503A Time/Frequency Receiver */ -#define REFCLK_ARCRON_MSF 27 /* ARCRON MSF radio clock. */ -#define REFCLK_SHM 28 /* clock attached thru shared memory */ -#define REFCLK_PALISADE 29 /* Trimble Navigation Palisade GPS */ -#define REFCLK_ONCORE 30 /* Motorola UT Oncore GPS */ -#define REFCLK_GPS_JUPITER 31 /* Rockwell Jupiter GPS receiver */ -#define REFCLK_CHRONOLOG 32 /* Chrono-log K WWVB receiver */ -#define REFCLK_DUMBCLOCK 33 /* Dumb localtime clock */ -#define REFCLK_ULINK 34 /* Ultralink M320 WWVB receiver */ -#define REFCLK_PCF 35 /* Conrad parallel port radio clock */ -#define REFCLK_WWV_AUDIO 36 /* WWV/H audio demodulator/decoder */ -#define REFCLK_FG 37 /* Forum Graphic GPS */ -#define REFCLK_HOPF_SERIAL 38 /* hopf DCF77/GPS serial receiver */ -#define REFCLK_HOPF_PCI 39 /* hopf DCF77/GPS PCI receiver */ -#define REFCLK_JJY 40 /* JJY receiver */ -#define REFCLK_TT560 41 /* TrueTime 560 IRIG-B decoder */ -#define REFCLK_ZYFER 42 /* Zyfer GPStarplus receiver */ -#define REFCLK_RIPENCC 43 /* RIPE NCC Trimble driver */ -#define REFCLK_NEOCLOCK4X 44 /* NeoClock4X DCF77 or TDF receiver */ -#define REFCLK_MAX 44 /* NeoClock4X DCF77 or TDF receiver */ - - /* - * Macro for sockaddr_storage structures operations - */ -#define SOCKCMP(sock1, sock2) \ - (((struct sockaddr_storage *)sock1)->ss_family \ - == ((struct sockaddr_storage *)sock2)->ss_family ? \ - ((struct sockaddr_storage *)sock1)->ss_family == AF_INET ? \ - memcmp(&((struct sockaddr_in *)sock1)->sin_addr, \ - &((struct sockaddr_in *)sock2)->sin_addr, \ - sizeof(struct in_addr)) == 0 : \ - memcmp(&((struct sockaddr_in6 *)sock1)->sin6_addr, \ - &((struct sockaddr_in6 *)sock2)->sin6_addr, \ - sizeof(struct in6_addr)) == 0 : \ - 0) - -#define SOCKNUL(sock1) \ - (((struct sockaddr_storage *)sock1)->ss_family == AF_INET ? \ - (((struct sockaddr_in *)sock1)->sin_addr.s_addr == 0) : \ - (IN6_IS_ADDR_UNSPECIFIED(&((struct sockaddr_in6 *)sock1)->sin6_addr))) - -#define SOCKLEN(sock) \ - (((struct sockaddr_storage *)sock)->ss_family == AF_INET ? \ - (sizeof(struct sockaddr_in)) : (sizeof(struct sockaddr_in6))) - -#define ANYSOCK(sock) \ - memset(((struct sockaddr_in *)sock), 0, \ - sizeof(struct sockaddr_storage)) - -#define ANY_INTERFACE_CHOOSE(sock) \ - (((struct sockaddr_storage *)sock)->ss_family == AF_INET ? \ - any_interface : any6_interface) - -/* - * We tell reference clocks from real peers by giving the reference - * clocks an address of the form 127.127.t.u, where t is the type and - * u is the unit number. We define some of this here since we will need - * some sanity checks to make sure this address isn't interpretted as - * that of a normal peer. - */ -#define REFCLOCK_ADDR 0x7f7f0000 /* 127.127.0.0 */ -#define REFCLOCK_MASK 0xffff0000 /* 255.255.0.0 */ - -#define ISREFCLOCKADR(srcadr) ((SRCADR(srcadr) & REFCLOCK_MASK) \ - == REFCLOCK_ADDR) - -/* - * Macro for checking for invalid addresses. This is really, really - * gross, but is needed so no one configures a host on net 127 now that - * we're encouraging it the the configuration file. - */ -#define LOOPBACKADR 0x7f000001 -#define LOOPNETMASK 0xff000000 - -#define ISBADADR(srcadr) (((SRCADR(srcadr) & LOOPNETMASK) \ - == (LOOPBACKADR & LOOPNETMASK)) \ - && (SRCADR(srcadr) != LOOPBACKADR)) - -/* - * Utilities for manipulating addresses and port numbers - */ -#define NSRCADR(src) (((struct sockaddr_in *)src)->sin_addr.s_addr) /* address in net byte order */ -#define NSRCPORT(src) (((struct sockaddr_in *)src)->sin_port) /* port in net byte order */ -#define SRCADR(src) (ntohl(NSRCADR((src)))) /* address in host byte order */ -#define SRCPORT(src) (ntohs(NSRCPORT((src)))) /* host port */ - -#define CAST_V4(src) ((struct sockaddr_in *)&(src)) -#define CAST_V6(src) ((struct sockaddr_in6 *)&(src)) -#define GET_INADDR(src) (CAST_V4(src)->sin_addr.s_addr) -#define GET_INADDR6(src) (CAST_V6(src)->sin6_addr) - -#define SET_HOSTMASK(addr, family) \ - do { \ - memset((char *)(addr), 0, sizeof(struct sockaddr_storage)); \ - (addr)->ss_family = (family); \ - if ((family) == AF_INET) \ - GET_INADDR(*(addr)) = 0xffffffff; \ - else \ - memset(&GET_INADDR6(*(addr)), 0xff, \ - sizeof(struct in6_addr)); \ - } while(0) - -/* - * NTP packet format. The mac field is optional. It isn't really - * an l_fp either, but for now declaring it that way is convenient. - * See Appendix A in the specification. - * - * Note that all u_fp and l_fp values arrive in network byte order - * and must be converted (except the mac, which isn't, really). - */ -struct pkt { - u_char li_vn_mode; /* leap indicator, version and mode */ - u_char stratum; /* peer stratum */ - u_char ppoll; /* peer poll interval */ - s_char precision; /* peer clock precision */ - u_fp rootdelay; /* distance to primary clock */ - u_fp rootdispersion; /* clock dispersion */ - u_int32 refid; /* reference clock ID */ - l_fp reftime; /* time peer clock was last updated */ - l_fp org; /* originate time stamp */ - l_fp rec; /* receive time stamp */ - l_fp xmt; /* transmit time stamp */ - -#define LEN_PKT_NOMAC 12 * sizeof(u_int32) /* min header length */ -#define LEN_PKT_MAC LEN_PKT_NOMAC + sizeof(u_int32) -#define MIN_MAC_LEN 3 * sizeof(u_int32) /* DES */ -#define MAX_MAC_LEN 5 * sizeof(u_int32) /* MD5 */ - - /* - * The length of the packet less MAC must be a multiple of 64 - * with an RSA modulus and Diffie-Hellman prime of 64 octets - * and maximum host name of 128 octets, the maximum autokey - * command is 152 octets and maximum autokey response is 460 - * octets. A packet can contain no more than one command and one - * response, so the maximum total extension field length is 672 - * octets. But, to handle humungus certificates, the bank must - * be broke. - */ -#ifdef OPENSSL - u_int32 exten[NTP_MAXEXTEN / 4]; /* max extension field */ -#else /* OPENSSL */ - u_int32 exten[1]; /* misused */ -#endif /* OPENSSL */ - u_char mac[MAX_MAC_LEN]; /* mac */ -}; - -/* - * Stuff for extracting things from li_vn_mode - */ -#define PKT_MODE(li_vn_mode) ((u_char)((li_vn_mode) & 0x7)) -#define PKT_VERSION(li_vn_mode) ((u_char)(((li_vn_mode) >> 3) & 0x7)) -#define PKT_LEAP(li_vn_mode) ((u_char)(((li_vn_mode) >> 6) & 0x3)) - -/* - * Stuff for putting things back into li_vn_mode - */ -#define PKT_LI_VN_MODE(li, vn, md) \ - ((u_char)((((li) << 6) & 0xc0) | (((vn) << 3) & 0x38) | ((md) & 0x7))) - - -/* - * Dealing with stratum. 0 gets mapped to 16 incoming, and back to 0 - * on output. - */ -#define PKT_TO_STRATUM(s) ((u_char)(((s) == (STRATUM_PKT_UNSPEC)) ?\ - (STRATUM_UNSPEC) : (s))) - -#define STRATUM_TO_PKT(s) ((u_char)(((s) == (STRATUM_UNSPEC)) ?\ - (STRATUM_PKT_UNSPEC) : (s))) - -/* - * Event codes. Used for reporting errors/events to the control module - */ -#define PEER_EVENT 0x080 /* this is a peer event */ -#define CRPT_EVENT 0x100 /* this is a crypto event */ - -/* - * System event codes - */ -#define EVNT_UNSPEC 0 /* unspecified */ -#define EVNT_SYSRESTART 1 /* system restart */ -#define EVNT_SYSFAULT 2 /* wsystem or hardware fault */ -#define EVNT_SYNCCHG 3 /* new leap or synch change */ -#define EVNT_PEERSTCHG 4 /* new source or stratum */ -#define EVNT_CLOCKRESET 5 /* clock reset */ -#define EVNT_BADDATETIM 6 /* invalid time or date */ -#define EVNT_CLOCKEXCPT 7 /* reference clock exception */ - -/* - * Peer event codes - */ -#define EVNT_PEERIPERR (1 | PEER_EVENT) /* IP error */ -#define EVNT_PEERAUTH (2 | PEER_EVENT) /* authentication failure */ -#define EVNT_UNREACH (3 | PEER_EVENT) /* change to unreachable */ -#define EVNT_REACH (4 | PEER_EVENT) /* change to reachable */ -#define EVNT_PEERCLOCK (5 | PEER_EVENT) /* clock exception */ - -/* - * Clock event codes - */ -#define CEVNT_NOMINAL 0 /* unspecified */ -#define CEVNT_TIMEOUT 1 /* poll timeout */ -#define CEVNT_BADREPLY 2 /* bad reply format */ -#define CEVNT_FAULT 3 /* hardware or software fault */ -#define CEVNT_PROP 4 /* propagation failure */ -#define CEVNT_BADDATE 5 /* bad date format or value */ -#define CEVNT_BADTIME 6 /* bad time format or value */ -#define CEVNT_MAX CEVNT_BADTIME - -/* - * Very misplaced value. Default port through which we send traps. - */ -#define TRAPPORT 18447 - - -/* - * To speed lookups, peers are hashed by the low order bits of the - * remote IP address. These definitions relate to that. - */ -#define HASH_SIZE 128 -#define HASH_MASK (HASH_SIZE-1) -#define HASH_ADDR(src) sock_hash(src) - -/* - * How we randomize polls. The poll interval is a power of two. - * We chose a random value which is between 1/4 and 3/4 of the - * poll interval we would normally use and which is an even multiple - * of the EVENT_TIMEOUT. The random number routine, given an argument - * spread value of n, returns an integer between 0 and (1<<n)-1. This - * is shifted by EVENT_TIMEOUT and added to the base value. - */ -#if defined(HAVE_MRAND48) -# define RANDOM (mrand48()) -# define SRANDOM(x) (srand48(x)) -#else -# define RANDOM (random()) -# define SRANDOM(x) (srandom(x)) -#endif - -#define RANDPOLL(x) ((1 << (x)) - 1 + (RANDOM & 0x3)) -#define RANDOM_SPREAD(poll) ((poll) - (EVENT_TIMEOUT+1)) -#define RANDOM_POLL(poll, rval) ((((rval)+1)<<EVENT_TIMEOUT) + (1<<((poll)-2))) - -/* - * min, min3 and max. Makes it easier to transliterate the spec without - * thinking about it. - */ -#define min(a,b) (((a) < (b)) ? (a) : (b)) -#define max(a,b) (((a) > (b)) ? (a) : (b)) -#define min3(a,b,c) min(min((a),(b)), (c)) - - -/* - * Configuration items. These are for the protocol module (proto_config()) - */ -#define PROTO_BROADCLIENT 1 -#define PROTO_PRECISION 2 /* (not used) */ -#define PROTO_AUTHENTICATE 3 -#define PROTO_BROADDELAY 4 -#define PROTO_AUTHDELAY 5 /* (not used) */ -#define PROTO_MULTICAST_ADD 6 -#define PROTO_MULTICAST_DEL 7 -#define PROTO_NTP 8 -#define PROTO_KERNEL 9 -#define PROTO_MONITOR 10 -#define PROTO_FILEGEN 11 -#define PROTO_PPS 12 -#define PROTO_CAL 13 -#define PROTO_MINCLOCK 14 -#define PROTO_MINSANE 15 -#define PROTO_FLOOR 16 -#define PROTO_CEILING 17 -#define PROTO_COHORT 18 -#define PROTO_CALLDELAY 19 -#define PROTO_ADJ 20 - -/* - * Configuration items for the loop filter - */ -#define LOOP_DRIFTINIT 1 /* set initial frequency offset */ -#define LOOP_DRIFTCOMP 2 /* set frequency offset */ -#define LOOP_MAX 3 /* set step offset */ -#define LOOP_PANIC 4 /* set panic offseet */ -#define LOOP_PHI 5 /* set dispersion rate */ -#define LOOP_MINSTEP 6 /* set step timeout */ -#define LOOP_MINPOLL 7 /* set min poll interval (log2 s) */ -#define LOOP_ALLAN 8 /* set minimum Allan intercept */ -#define LOOP_HUFFPUFF 9 /* set huff-n'-puff filter length */ -#define LOOP_FREQ 10 /* set initial frequency */ - -/* - * Configuration items for the stats printer - */ -#define STATS_FREQ_FILE 1 /* configure drift file */ -#define STATS_STATSDIR 2 /* directory prefix for stats files */ -#define STATS_PID_FILE 3 /* configure ntpd PID file */ - -#define MJD_1900 15020 /* MJD for 1 Jan 1900 */ - -/* - * Default parameters. We use these in the absence of something better. - */ -#define DEFBROADDELAY 4e-3 /* default broadcast offset */ -#define INADDR_NTP 0xe0000101 /* NTP multicast address 224.0.1.1 */ - -/* - * Structure used optionally for monitoring when this is turned on. - */ -struct mon_data { - struct mon_data *hash_next; /* next structure in hash list */ - struct mon_data *mru_next; /* next structure in MRU list */ - struct mon_data *mru_prev; /* previous structure in MRU list */ - u_long drop_count; /* dropped due RESLIMIT*/ - double avg_interval; /* average interpacket interval */ - u_long lasttime; /* interval since last packet */ - u_long count; /* total packet count */ - struct sockaddr_storage rmtadr; /* address of remote host */ - struct interface *interface; /* interface on which this arrived */ - u_short rmtport; /* remote port last came from */ - u_char mode; /* mode of incoming packet */ - u_char version; /* version of incoming packet */ - u_char cast_flags; /* flags MDF_?CAST */ -}; - -/* - * Values for cast_flags - */ -#define MDF_UCAST 0x01 /* unicast */ -#define MDF_MCAST 0x02 /* multicast */ -#define MDF_BCAST 0x04 /* broadcast */ -#define MDF_LCAST 0x08 /* localcast */ -#define MDF_ACAST 0x10 /* manycast */ -#define MDF_BCLNT 0x20 /* broadcast client */ -#define MDF_ACLNT 0x40 /* manycast client */ - -/* - * Values used with mon_enabled to indicate reason for enabling monitoring - */ -#define MON_OFF 0x00 /* no monitoring */ -#define MON_ON 0x01 /* monitoring explicitly enabled */ -#define MON_RES 0x02 /* implicit monitoring for RES_LIMITED */ -/* - * Structure used for restrictlist entries - */ -struct restrictlist { - struct restrictlist *next; /* link to next entry */ - u_int32 addr; /* Ipv4 host address (host byte order) */ - u_int32 mask; /* Ipv4 mask for address (host byte order) */ - u_long count; /* number of packets matched */ - u_short flags; /* accesslist flags */ - u_short mflags; /* match flags */ -}; - -struct restrictlist6 { - struct restrictlist6 *next; /* link to next entry */ - struct in6_addr addr6; /* Ipv6 host address */ - struct in6_addr mask6; /* Ipv6 mask address */ - u_long count; /* number of packets matched */ - u_short flags; /* accesslist flags */ - u_short mflags; /* match flags */ -}; - - -/* - * Access flags - */ -#define RES_IGNORE 0x001 /* ignore packet */ -#define RES_DONTSERVE 0x002 /* access denied */ -#define RES_DONTTRUST 0x004 /* authentication required */ -#define RES_VERSION 0x008 /* version mismatch */ -#define RES_NOPEER 0x010 /* new association denied */ -#define RES_LIMITED 0x020 /* packet rate exceeded */ - -#define RES_FLAGS (RES_IGNORE | RES_DONTSERVE |\ - RES_DONTTRUST | RES_VERSION |\ - RES_NOPEER | RES_LIMITED) - -#define RES_NOQUERY 0x040 /* mode 6/7 packet denied */ -#define RES_NOMODIFY 0x080 /* mode 6/7 modify denied */ -#define RES_NOTRAP 0x100 /* mode 6/7 set trap denied */ -#define RES_LPTRAP 0x200 /* mode 6/7 low priority trap */ - -#define RES_DEMOBILIZE 0x400 /* send kiss of death packet */ -#define RES_TIMEOUT 0x800 /* timeout this entry */ - -#define RES_ALLFLAGS (RES_FLAGS | RES_NOQUERY |\ - RES_NOMODIFY | RES_NOTRAP |\ - RES_LPTRAP | RES_DEMOBILIZE |\ - RES_TIMEOUT) - -/* - * Match flags - */ -#define RESM_INTERFACE 0x1 /* this is an interface */ -#define RESM_NTPONLY 0x2 /* match ntp port only */ - -/* - * Restriction configuration ops - */ -#define RESTRICT_FLAGS 1 /* add flags to restrict entry */ -#define RESTRICT_UNFLAG 2 /* remove flags from restrict entry */ -#define RESTRICT_REMOVE 3 /* remove a restrict entry */ - -/* - * Endpoint structure for the select algorithm - */ -struct endpoint { - double val; /* offset of endpoint */ - int type; /* interval entry/exit */ -}; - -/* - * Defines for association matching - */ -#define AM_MODES 10 /* total number of modes */ -#define NO_PEER 0 /* action when no peer is found */ - -/* - * Association matching AM[] return codes - */ -#define AM_ERR -1 -#define AM_NOMATCH 0 -#define AM_PROCPKT 1 -#define AM_FXMIT 2 -#define AM_MANYCAST 3 -#define AM_NEWPASS 4 -#define AM_NEWBCL 5 -#define AM_POSSBCL 6 - -/* NetInfo configuration locations */ -#ifdef HAVE_NETINFO -#define NETINFO_CONFIG_DIR "/config/ntp" -#endif - -#endif /* NTP_H */ |