xref: /freebsd/contrib/ntp/include/ntp.h (revision a466cc55373fc3cf86837f09da729535b57e69a1)
1c0b746e5SOllivier Robert /*
2c0b746e5SOllivier Robert  * ntp.h - NTP definitions for the masses
3c0b746e5SOllivier Robert  */
4c0b746e5SOllivier Robert #ifndef NTP_H
5c0b746e5SOllivier Robert #define NTP_H
6c0b746e5SOllivier Robert 
72b15cb3dSCy Schubert #include <stddef.h>
8c0b746e5SOllivier Robert #include <math.h>
92b15cb3dSCy Schubert 
102b15cb3dSCy Schubert #include <ntp_fp.h>
112b15cb3dSCy Schubert #include <ntp_types.h>
122b15cb3dSCy Schubert #include <ntp_lists.h>
132b15cb3dSCy Schubert #include <ntp_stdlib.h>
142b15cb3dSCy Schubert #include <ntp_crypto.h>
15ea906c41SOllivier Robert #include <ntp_random.h>
162b15cb3dSCy Schubert #include <ntp_net.h>
17ea906c41SOllivier Robert 
18ea906c41SOllivier Robert #include <isc/boolean.h>
19c0b746e5SOllivier Robert 
20224ba2bdSOllivier Robert /*
21224ba2bdSOllivier Robert  * Calendar arithmetic - contributed by G. Healton
22224ba2bdSOllivier Robert  */
23224ba2bdSOllivier Robert #define YEAR_BREAK 500		/* years < this are tm_year values:
24224ba2bdSOllivier Robert 				 * Break < AnyFourDigitYear && Break >
25224ba2bdSOllivier Robert 				 * Anytm_yearYear */
26c0b746e5SOllivier Robert 
27224ba2bdSOllivier Robert #define YEAR_PIVOT 98		/* 97/98: years < this are year 2000+
28224ba2bdSOllivier Robert 				 * FYI: official UNIX pivot year is
29224ba2bdSOllivier Robert 				 * 68/69 */
30c0b746e5SOllivier Robert 
31224ba2bdSOllivier Robert /*
32224ba2bdSOllivier Robert  * Number of Days since 1 BC Gregorian to 1 January of given year
33224ba2bdSOllivier Robert  */
34224ba2bdSOllivier Robert #define julian0(year)	(((year) * 365 ) + ((year) > 0 ? (((year) + 3) \
35224ba2bdSOllivier Robert 			    / 4 - ((year - 1) / 100) + ((year - 1) / \
36224ba2bdSOllivier Robert 			    400)) : 0))
37c0b746e5SOllivier Robert 
38224ba2bdSOllivier Robert /*
39224ba2bdSOllivier Robert  * Number of days since start of NTP time to 1 January of given year
40224ba2bdSOllivier Robert  */
41c0b746e5SOllivier Robert #define ntp0(year)	(julian0(year) - julian0(1900))
42c0b746e5SOllivier Robert 
43224ba2bdSOllivier Robert /*
44224ba2bdSOllivier Robert  * Number of days since start of UNIX time to 1 January of given year
45224ba2bdSOllivier Robert  */
46c0b746e5SOllivier Robert #define unix0(year)	(julian0(year) - julian0(1970))
47c0b746e5SOllivier Robert 
48224ba2bdSOllivier Robert /*
49224ba2bdSOllivier Robert  * LEAP YEAR test for full 4-digit years (e.g, 1999, 2010)
50224ba2bdSOllivier Robert  */
51224ba2bdSOllivier Robert #define isleap_4(y)	((y) % 4 == 0 && !((y) % 100 == 0 && !(y % \
52224ba2bdSOllivier Robert 			    400 == 0)))
53c0b746e5SOllivier Robert 
54224ba2bdSOllivier Robert /*
55224ba2bdSOllivier Robert  * LEAP YEAR test for tm_year (struct tm) years (e.g, 99, 110)
56224ba2bdSOllivier Robert  */
57224ba2bdSOllivier Robert #define isleap_tm(y)	((y) % 4 == 0 && !((y) % 100 == 0 && !(((y) \
58224ba2bdSOllivier Robert 			    + 1900) % 400 == 0)))
59c0b746e5SOllivier Robert 
60224ba2bdSOllivier Robert /*
61224ba2bdSOllivier Robert  * to convert simple two-digit years to tm_year style years:
62224ba2bdSOllivier Robert  *
63224ba2bdSOllivier Robert  *	if (year < YEAR_PIVOT)
64224ba2bdSOllivier Robert  *		year += 100;
65224ba2bdSOllivier Robert  *
66c0b746e5SOllivier Robert  * to convert either two-digit OR tm_year years to four-digit years:
67224ba2bdSOllivier Robert  *
68224ba2bdSOllivier Robert  *	if (year < YEAR_PIVOT)
69224ba2bdSOllivier Robert  *		year += 100;
70224ba2bdSOllivier Robert  *
71224ba2bdSOllivier Robert  *	if (year < YEAR_BREAK)
72224ba2bdSOllivier Robert  *		year += 1900;
73224ba2bdSOllivier Robert  */
74c0b746e5SOllivier Robert 
75c0b746e5SOllivier Robert /*
76c0b746e5SOllivier Robert  * How to get signed characters.  On machines where signed char works,
77c0b746e5SOllivier Robert  * use it. On machines where signed char doesn't work, char had better
78c0b746e5SOllivier Robert  * be signed.
79c0b746e5SOllivier Robert  */
80c0b746e5SOllivier Robert #ifdef NEED_S_CHAR_TYPEDEF
81c0b746e5SOllivier Robert # if SIZEOF_SIGNED_CHAR
82c0b746e5SOllivier Robert typedef signed char s_char;
83c0b746e5SOllivier Robert # else
84c0b746e5SOllivier Robert typedef char s_char;
85c0b746e5SOllivier Robert # endif
86c0b746e5SOllivier Robert   /* XXX: Why is this sequent bit INSIDE this test? */
87c0b746e5SOllivier Robert # ifdef sequent
88c0b746e5SOllivier Robert #  undef SO_RCVBUF
89c0b746e5SOllivier Robert #  undef SO_SNDBUF
90c0b746e5SOllivier Robert # endif
91c0b746e5SOllivier Robert #endif
92c0b746e5SOllivier Robert 
93c0b746e5SOllivier Robert /*
94c0b746e5SOllivier Robert  * NTP protocol parameters.  See section 3.2.6 of the specification.
95c0b746e5SOllivier Robert  */
96c0b746e5SOllivier Robert #define	NTP_VERSION	((u_char)4) /* current version number */
97c0b746e5SOllivier Robert #define	NTP_OLDVERSION	((u_char)1) /* oldest credible version */
989c2daa00SOllivier Robert #define	NTP_PORT	123	/* included for non-unix machines */
999c2daa00SOllivier Robert 
1009c2daa00SOllivier Robert /*
1019c2daa00SOllivier Robert  * Poll interval parameters
1029c2daa00SOllivier Robert  */
1032b15cb3dSCy Schubert #define NTP_UNREACH	10	/* poll unreach threshold */
1042b15cb3dSCy Schubert #define	NTP_MINPOLL	3	/* log2 min poll interval (8 s) */
1059c2daa00SOllivier Robert #define NTP_MINDPOLL	6	/* log2 default min poll (64 s) */
1069c2daa00SOllivier Robert #define NTP_MAXDPOLL	10	/* log2 default max poll (~17 m) */
1079c2daa00SOllivier Robert #define	NTP_MAXPOLL	17	/* log2 max poll interval (~36 h) */
1082b15cb3dSCy Schubert #define	NTP_RETRY	3	/* max packet retries */
1092b15cb3dSCy Schubert #define	NTP_MINPKT	2	/* guard time (s) */
1109c2daa00SOllivier Robert 
1119c2daa00SOllivier Robert /*
1129c2daa00SOllivier Robert  * Clock filter algorithm tuning parameters
1139c2daa00SOllivier Robert  */
1149c2daa00SOllivier Robert #define MAXDISPERSE	16.	/* max dispersion */
1159c2daa00SOllivier Robert #define	NTP_SHIFT	8	/* clock filter stages */
116c0b746e5SOllivier Robert #define NTP_FWEIGHT	.5	/* clock filter weight */
1179c2daa00SOllivier Robert 
1189c2daa00SOllivier Robert /*
1199c2daa00SOllivier Robert  * Selection algorithm tuning parameters
1209c2daa00SOllivier Robert  */
121ea906c41SOllivier Robert #define	NTP_MINCLOCK	3	/* min survivors */
122ea906c41SOllivier Robert #define	NTP_MAXCLOCK	10	/* max candidates */
1232b15cb3dSCy Schubert #define MINDISPERSE	.001	/* min distance */
1242b15cb3dSCy Schubert #define MAXDISTANCE	1.5	/* max root distance (select threshold) */
1259c2daa00SOllivier Robert #define CLOCK_SGATE	3.	/* popcorn spike gate */
126224ba2bdSOllivier Robert #define HUFFPUFF	900	/* huff-n'-puff sample interval (s) */
127ea906c41SOllivier Robert #define MAXHOP		2	/* anti-clockhop threshold */
1289c2daa00SOllivier Robert #define MAX_TTL		8	/* max ttl mapping vector size */
129ea906c41SOllivier Robert #define	BEACON		7200	/* manycast beacon interval */
1302b15cb3dSCy Schubert #define NTP_MAXEXTEN	2048	/* max extension field size */
131767173ceSCy Schubert #define	NTP_ORPHWAIT	300	/* orphan wait (s) */
1329c2daa00SOllivier Robert 
1339c2daa00SOllivier Robert /*
1349c2daa00SOllivier Robert  * Miscellaneous stuff
1359c2daa00SOllivier Robert  */
136ea906c41SOllivier Robert #define NTP_MAXKEY	65535	/* max authentication key number */
1372b15cb3dSCy Schubert #define	KEY_TYPE_MD5	NID_md5	/* MD5 digest NID */
1389c2daa00SOllivier Robert /*
1399c2daa00SOllivier Robert  * Limits of things
1409c2daa00SOllivier Robert  */
1412b15cb3dSCy Schubert #define	MAXFILENAME	256	/* max length of file name */
1429c2daa00SOllivier Robert #define MAXHOSTNAME	512	/* max length of host/node name */
143ea906c41SOllivier Robert #define NTP_MAXSTRLEN	256	/* max string length */
144c0b746e5SOllivier Robert 
145c0b746e5SOllivier Robert /*
146224ba2bdSOllivier Robert  * Operations for jitter calculations (these use doubles).
147224ba2bdSOllivier Robert  *
148224ba2bdSOllivier Robert  * Note that we carefully separate the jitter component from the
149224ba2bdSOllivier Robert  * dispersion component (frequency error plus precision). The frequency
150224ba2bdSOllivier Robert  * error component is computed as CLOCK_PHI times the difference between
151224ba2bdSOllivier Robert  * the epoch of the time measurement and the reference time. The
1522b15cb3dSCy Schubert  * precision component is computed as the square root of the mean of the
153224ba2bdSOllivier Robert  * squares of a zero-mean, uniform distribution of unit maximum
154224ba2bdSOllivier Robert  * amplitude. Whether this makes statistical sense may be arguable.
155c0b746e5SOllivier Robert  */
156c0b746e5SOllivier Robert #define SQUARE(x) ((x) * (x))
157c0b746e5SOllivier Robert #define SQRT(x) (sqrt(x))
158c0b746e5SOllivier Robert #define DIFF(x, y) (SQUARE((x) - (y)))
1592b15cb3dSCy Schubert #define LOGTOD(a)	ldexp(1., (int)(a)) /* log2 to double */
160c0b746e5SOllivier Robert #define UNIVAR(x)	(SQUARE(.28867513 * LOGTOD(x))) /* std uniform distr */
1612b15cb3dSCy Schubert #define ULOGTOD(a)	ldexp(1., (int)(a)) /* ulog2 to double */
162c0b746e5SOllivier Robert 
163c0b746e5SOllivier Robert #define	EVENT_TIMEOUT	0	/* one second, that is */
164c0b746e5SOllivier Robert 
1652b15cb3dSCy Schubert 
166c0b746e5SOllivier Robert /*
167c0b746e5SOllivier Robert  * The interface structure is used to hold the addresses and socket
1682b15cb3dSCy Schubert  * numbers of each of the local network addresses we are using.
1692b15cb3dSCy Schubert  * Because "interface" is a reserved word in C++ and has so many
1702b15cb3dSCy Schubert  * varied meanings, a change to "endpt" (via typedef) is under way.
1712b15cb3dSCy Schubert  * Eventually the struct tag will change from interface to endpt_tag.
1722b15cb3dSCy Schubert  * endpt is unrelated to the select algorithm's struct endpoint.
173c0b746e5SOllivier Robert  */
1742b15cb3dSCy Schubert typedef struct interface endpt;
175c0b746e5SOllivier Robert struct interface {
1762b15cb3dSCy Schubert 	endpt *		elink;		/* endpt list link */
1772b15cb3dSCy Schubert 	endpt *		mclink;		/* per-AF_* multicast list */
1784990d495SXin LI 	void *		ioreg_ctx;	/* IO registration context */
1792b15cb3dSCy Schubert 	SOCKET		fd;		/* socket descriptor */
1802b15cb3dSCy Schubert 	SOCKET		bfd;		/* for receiving broadcasts */
1812b15cb3dSCy Schubert 	u_int32		ifnum;		/* endpt instance count */
1822b15cb3dSCy Schubert 	sockaddr_u	sin;		/* unicast address */
1832b15cb3dSCy Schubert 	sockaddr_u	mask;		/* subnet mask */
1842b15cb3dSCy Schubert 	sockaddr_u	bcast;		/* broadcast address */
1859c2daa00SOllivier Robert 	char		name[32];	/* name of interface */
1862b15cb3dSCy Schubert 	u_short		family;		/* AF_INET/AF_INET6 */
1872b15cb3dSCy Schubert 	u_short		phase;		/* phase in update cycle */
1882b15cb3dSCy Schubert 	u_int32		flags;		/* interface flags */
189c0b746e5SOllivier Robert 	int		last_ttl;	/* last TTL specified */
190ea906c41SOllivier Robert 	u_int32		addr_refid;	/* IPv4 addr or IPv6 hash */
1912b15cb3dSCy Schubert 	int		num_mcast;	/* mcast addrs enabled */
1922b15cb3dSCy Schubert 	u_long		starttime;	/* current_time at creation */
193c0b746e5SOllivier Robert 	volatile long	received;	/* number of incoming packets */
194c0b746e5SOllivier Robert 	long		sent;		/* number of outgoing packets */
195c0b746e5SOllivier Robert 	long		notsent;	/* number of send failures */
1962b15cb3dSCy Schubert 	u_int		ifindex;	/* for IPV6_MULTICAST_IF */
1972b15cb3dSCy Schubert 	isc_boolean_t	ignore_packets; /* listen-read-drop this? */
1982b15cb3dSCy Schubert 	struct peer *	peers;		/* list of peers using endpt */
1992b15cb3dSCy Schubert 	u_int		peercnt;	/* count of same */
200c0b746e5SOllivier Robert };
201c0b746e5SOllivier Robert 
202c0b746e5SOllivier Robert /*
203c0b746e5SOllivier Robert  * Flags for interfaces
204c0b746e5SOllivier Robert  */
205ea906c41SOllivier Robert #define INT_UP		0x001	/* Interface is up */
206ea906c41SOllivier Robert #define	INT_PPP		0x002	/* Point-to-point interface */
207ea906c41SOllivier Robert #define	INT_LOOPBACK	0x004	/* the loopback interface */
208ea906c41SOllivier Robert #define	INT_BROADCAST	0x008	/* can broadcast out this interface */
209ea906c41SOllivier Robert #define INT_MULTICAST	0x010	/* can multicast out this interface */
2102b15cb3dSCy Schubert #define	INT_BCASTOPEN	0x020	/* broadcast receive socket is open */
211ea906c41SOllivier Robert #define INT_MCASTOPEN	0x040	/* multicasting enabled */
212ea906c41SOllivier Robert #define INT_WILDCARD	0x080	/* wildcard interface - usually skipped */
213ea906c41SOllivier Robert #define INT_MCASTIF	0x100	/* bound directly to MCAST address */
2142b15cb3dSCy Schubert #define INT_PRIVACY	0x200	/* RFC 4941 IPv6 privacy address */
2152b15cb3dSCy Schubert #define INT_BCASTXMIT	0x400   /* socket setup to allow broadcasts */
2162b15cb3dSCy Schubert 
217c0b746e5SOllivier Robert /*
218224ba2bdSOllivier Robert  * Define flasher bits (tests 1 through 11 in packet procedure)
219c0b746e5SOllivier Robert  * These reveal the state at the last grumble from the peer and are
220c0b746e5SOllivier Robert  * most handy for diagnosing problems, even if not strictly a state
221c0b746e5SOllivier Robert  * variable in the spec. These are recorded in the peer structure.
222ea906c41SOllivier Robert  *
223ea906c41SOllivier Robert  * Packet errors
224c0b746e5SOllivier Robert  */
225ea906c41SOllivier Robert #define TEST1		0X0001	/* duplicate packet */
226ea906c41SOllivier Robert #define TEST2		0x0002	/* bogus packet */
227c0b746e5SOllivier Robert #define TEST3		0x0004	/* protocol unsynchronized */
228224ba2bdSOllivier Robert #define TEST4		0x0008	/* access denied */
2292b15cb3dSCy Schubert #define TEST5		0x0010	/* bad authentication */
230ea906c41SOllivier Robert #define TEST6		0x0020	/* bad synch or stratum */
2312b15cb3dSCy Schubert #define TEST7		0x0040	/* bad header */
2322b15cb3dSCy Schubert #define TEST8		0x0080  /* bad autokey */
2332b15cb3dSCy Schubert #define TEST9		0x0100	/* bad crypto */
234ea906c41SOllivier Robert #define	PKT_TEST_MASK	(TEST1 | TEST2 | TEST3 | TEST4 | TEST5 |\
235ea906c41SOllivier Robert 			TEST6 | TEST7 | TEST8 | TEST9)
236ea906c41SOllivier Robert /*
237ea906c41SOllivier Robert  * Peer errors
238ea906c41SOllivier Robert  */
239ea906c41SOllivier Robert #define TEST10		0x0200	/* peer bad synch or stratum */
240ea906c41SOllivier Robert #define	TEST11		0x0400	/* peer distance exceeded */
241ea906c41SOllivier Robert #define TEST12		0x0800	/* peer synchronization loop */
242ea906c41SOllivier Robert #define TEST13		0x1000	/* peer unreacable */
243ea906c41SOllivier Robert #define	PEER_TEST_MASK	(TEST10 | TEST11 | TEST12 | TEST13)
244ea906c41SOllivier Robert 
245ea906c41SOllivier Robert /*
2464990d495SXin LI  * Unused flags
2474990d495SXin LI  */
2484990d495SXin LI #define TEST14		0x2000
2494990d495SXin LI #define TEST15		0x4000
2504990d495SXin LI #define TEST16		0x8000
2514990d495SXin LI 
2524990d495SXin LI /*
253c0b746e5SOllivier Robert  * The peer structure. Holds state information relating to the guys
254c0b746e5SOllivier Robert  * we are peering with. Most of this stuff is from section 3.2 of the
255c0b746e5SOllivier Robert  * spec.
256c0b746e5SOllivier Robert  */
257c0b746e5SOllivier Robert struct peer {
2582b15cb3dSCy Schubert 	struct peer *p_link;	/* link pointer in free & peer lists */
2592b15cb3dSCy Schubert 	struct peer *adr_link;	/* link pointer in address hash */
2602b15cb3dSCy Schubert 	struct peer *aid_link;	/* link pointer in associd hash */
2612b15cb3dSCy Schubert 	struct peer *ilink;	/* list of peers for interface */
2622b15cb3dSCy Schubert 	sockaddr_u srcadr;	/* address of remote host */
2632b15cb3dSCy Schubert 	char *	hostname;	/* if non-NULL, remote name */
2642b15cb3dSCy Schubert 	struct addrinfo *addrs;	/* hostname query result */
2652b15cb3dSCy Schubert 	struct addrinfo *ai;	/* position within addrs */
2662b15cb3dSCy Schubert 	endpt *	dstadr;		/* local address */
267224ba2bdSOllivier Robert 	associd_t associd;	/* association ID */
268c0b746e5SOllivier Robert 	u_char	version;	/* version number */
269224ba2bdSOllivier Robert 	u_char	hmode;		/* local association mode */
270224ba2bdSOllivier Robert 	u_char	hpoll;		/* local poll interval */
271224ba2bdSOllivier Robert 	u_char	minpoll;	/* min poll interval */
272224ba2bdSOllivier Robert 	u_char	maxpoll;	/* max poll interval */
273224ba2bdSOllivier Robert 	u_int	flags;		/* association flags */
274224ba2bdSOllivier Robert 	u_char	cast_flags;	/* additional flags */
275224ba2bdSOllivier Robert 	u_char	last_event;	/* last peer error code */
276224ba2bdSOllivier Robert 	u_char	num_events;	/* number of error events */
2772b15cb3dSCy Schubert 	u_int32	ttl;		/* ttl/refclock mode */
2782b15cb3dSCy Schubert 	char	*ident;		/* group identifier name */
279224ba2bdSOllivier Robert 
280224ba2bdSOllivier Robert 	/*
281224ba2bdSOllivier Robert 	 * Variables used by reference clock support
282224ba2bdSOllivier Robert 	 */
283ea906c41SOllivier Robert #ifdef REFCLOCK
284224ba2bdSOllivier Robert 	struct refclockproc *procptr; /* refclock structure pointer */
285c0b746e5SOllivier Robert 	u_char	refclktype;	/* reference clock type */
286c0b746e5SOllivier Robert 	u_char	refclkunit;	/* reference clock unit number */
287c0b746e5SOllivier Robert 	u_char	sstclktype;	/* clock type for system status word */
288ea906c41SOllivier Robert #endif /* REFCLOCK */
289c0b746e5SOllivier Robert 
290224ba2bdSOllivier Robert 	/*
291224ba2bdSOllivier Robert 	 * Variables set by received packet
292224ba2bdSOllivier Robert 	 */
293224ba2bdSOllivier Robert 	u_char	leap;		/* local leap indicator */
294224ba2bdSOllivier Robert 	u_char	pmode;		/* remote association mode */
295224ba2bdSOllivier Robert 	u_char	stratum;	/* remote stratum */
296224ba2bdSOllivier Robert 	u_char	ppoll;		/* remote poll interval */
297ea906c41SOllivier Robert 	s_char	precision;	/* remote clock precision */
2982b15cb3dSCy Schubert 	double	rootdelay;	/* roundtrip delay to primary source */
2992b15cb3dSCy Schubert 	double	rootdisp;	/* dispersion to primary source */
300224ba2bdSOllivier Robert 	u_int32	refid;		/* remote reference ID */
301224ba2bdSOllivier Robert 	l_fp	reftime;	/* update epoch */
302224ba2bdSOllivier Robert 
303224ba2bdSOllivier Robert 	/*
304224ba2bdSOllivier Robert 	 * Variables used by authenticated client
305224ba2bdSOllivier Robert 	 */
306224ba2bdSOllivier Robert 	keyid_t keyid;		/* current key ID */
3072b15cb3dSCy Schubert #ifdef AUTOKEY
3082b15cb3dSCy Schubert #define clear_to_zero opcode
3092b15cb3dSCy Schubert 	u_int32	opcode;		/* last request opcode */
310224ba2bdSOllivier Robert 	associd_t assoc;	/* peer association ID */
311224ba2bdSOllivier Robert 	u_int32	crypto;		/* peer status word */
3129c2daa00SOllivier Robert 	EVP_PKEY *pkey;		/* public key */
3139c2daa00SOllivier Robert 	const EVP_MD *digest;	/* message digest algorithm */
3149c2daa00SOllivier Robert 	char	*subject;	/* certificate subject name */
3159c2daa00SOllivier Robert 	char	*issuer;	/* certificate issuer name */
3162b15cb3dSCy Schubert 	struct cert_info *xinfo; /* issuer certificate */
317224ba2bdSOllivier Robert 	keyid_t	pkeyid;		/* previous key ID */
3182b15cb3dSCy Schubert 	keyid_t	hcookie;	/* host cookie */
3199c2daa00SOllivier Robert 	keyid_t	pcookie;	/* peer cookie */
3202b15cb3dSCy Schubert 	const struct pkey_info *ident_pkey; /* identity key */
3212b15cb3dSCy Schubert 	BIGNUM	*iffval;	/* identity challenge (IFF, GQ, MV) */
3222b15cb3dSCy Schubert 	const BIGNUM *grpkey;	/* identity challenge key (GQ) */
3232b15cb3dSCy Schubert 	struct value cookval;	/* receive cookie values */
3249c2daa00SOllivier Robert 	struct value recval;	/* receive autokey values */
3259c2daa00SOllivier Robert 	struct exten *cmmd;	/* extension pointer */
3262b15cb3dSCy Schubert 	u_long	refresh;	/* next refresh epoch */
3279c2daa00SOllivier Robert 
328224ba2bdSOllivier Robert 	/*
329224ba2bdSOllivier Robert 	 * Variables used by authenticated server
330224ba2bdSOllivier Robert 	 */
331224ba2bdSOllivier Robert 	keyid_t	*keylist;	/* session key ID list */
332224ba2bdSOllivier Robert 	int	keynumber;	/* current key number */
3339c2daa00SOllivier Robert 	struct value encrypt;	/* send encrypt values */
3349c2daa00SOllivier Robert 	struct value sndval;	/* send autokey values */
3352b15cb3dSCy Schubert #else	/* !AUTOKEY follows */
336224ba2bdSOllivier Robert #define clear_to_zero status
3372b15cb3dSCy Schubert #endif	/* !AUTOKEY */
338224ba2bdSOllivier Robert 
339224ba2bdSOllivier Robert 	/*
340224ba2bdSOllivier Robert 	 * Ephemeral state variables
341224ba2bdSOllivier Robert 	 */
342c0b746e5SOllivier Robert 	u_char	status;		/* peer status */
3432b15cb3dSCy Schubert 	u_char	new_status;	/* under-construction status */
344224ba2bdSOllivier Robert 	u_char	reach;		/* reachability register */
3452b15cb3dSCy Schubert 	int	flash;		/* protocol error test tally bits */
346224ba2bdSOllivier Robert 	u_long	epoch;		/* reference epoch */
3472b15cb3dSCy Schubert 	int	burst;		/* packets remaining in burst */
3482b15cb3dSCy Schubert 	int	retry;		/* retry counter */
3492b15cb3dSCy Schubert 	int	flip;		/* interleave mode control */
3502b15cb3dSCy Schubert 	int	filter_nextpt;	/* index into filter shift register */
351224ba2bdSOllivier Robert 	double	filter_delay[NTP_SHIFT]; /* delay shift register */
352224ba2bdSOllivier Robert 	double	filter_offset[NTP_SHIFT]; /* offset shift register */
353224ba2bdSOllivier Robert 	double	filter_disp[NTP_SHIFT]; /* dispersion shift register */
354224ba2bdSOllivier Robert 	u_long	filter_epoch[NTP_SHIFT]; /* epoch shift register */
355224ba2bdSOllivier Robert 	u_char	filter_order[NTP_SHIFT]; /* filter sort index */
356c0b746e5SOllivier Robert 	l_fp	rec;		/* receive time stamp */
357c0b746e5SOllivier Robert 	l_fp	xmt;		/* transmit time stamp */
3582b15cb3dSCy Schubert 	l_fp	dst;		/* destination timestamp */
3592b15cb3dSCy Schubert 	l_fp	aorg;		/* origin timestamp */
3602b15cb3dSCy Schubert 	l_fp	borg;		/* alternate origin timestamp */
36168ba7e87SXin LI 	l_fp	bxmt;		/* most recent broadcast transmit timestamp */
3622d4e511cSCy Schubert 	l_fp	nonce;		/* Value of nonce we sent as the xmt stamp */
363c0b746e5SOllivier Robert 	double	offset;		/* peer clock offset */
364c0b746e5SOllivier Robert 	double	delay;		/* peer roundtrip delay */
365224ba2bdSOllivier Robert 	double	jitter;		/* peer jitter (squares) */
366c0b746e5SOllivier Robert 	double	disp;		/* peer dispersion */
3672b15cb3dSCy Schubert 	double	xleave;		/* interleave delay */
3682b15cb3dSCy Schubert 	double	bias;		/* programmed offset bias */
3692b15cb3dSCy Schubert 
3702b15cb3dSCy Schubert 	/*
3712b15cb3dSCy Schubert 	 * Variables used to correct for packet length and asymmetry.
3722b15cb3dSCy Schubert 	 */
3732b15cb3dSCy Schubert 	double	t21;		/* outbound packet delay */
3742b15cb3dSCy Schubert 	int	t21_bytes;	/* outbound packet length */
3752b15cb3dSCy Schubert 	int	t21_last;	/* last outbound packet length */
3762b15cb3dSCy Schubert 	double	r21;		/* outbound data rate */
3772b15cb3dSCy Schubert 	double	t34;		/* inbound packet delay */
3782b15cb3dSCy Schubert 	int	t34_bytes;	/* inbound packet length */
3792b15cb3dSCy Schubert 	double	r34;		/* inbound data rate */
380c0b746e5SOllivier Robert 
381224ba2bdSOllivier Robert 	/*
382224ba2bdSOllivier Robert 	 * End of clear-to-zero area
383224ba2bdSOllivier Robert 	 */
384c0b746e5SOllivier Robert 	u_long	update;		/* receive epoch */
3852b15cb3dSCy Schubert #define end_clear_to_zero update
3862b15cb3dSCy Schubert 	int	unreach;	/* watchdog counter */
3872b15cb3dSCy Schubert 	int	throttle;	/* rate control */
388c0b746e5SOllivier Robert 	u_long	outdate;	/* send time last packet */
389c0b746e5SOllivier Robert 	u_long	nextdate;	/* send time next packet */
390ea906c41SOllivier Robert 
391c0b746e5SOllivier Robert 	/*
392224ba2bdSOllivier Robert 	 * Statistic counters
393c0b746e5SOllivier Robert 	 */
394c0b746e5SOllivier Robert 	u_long	timereset;	/* time stat counters were reset */
395f391d6bcSXin LI 	u_long	timelastrec;	/* last packet received time, incl. trash */
39668ba7e87SXin LI 	u_long	timereceived;	/* last (clean) packet received time */
397224ba2bdSOllivier Robert 	u_long	timereachable;	/* last reachable/unreachable time */
398224ba2bdSOllivier Robert 
399224ba2bdSOllivier Robert 	u_long	sent;		/* packets sent */
400224ba2bdSOllivier Robert 	u_long	received;	/* packets received */
4012b15cb3dSCy Schubert 	u_long	processed;	/* packets processed */
4022b15cb3dSCy Schubert 	u_long	badauth;	/* bad authentication (TEST5) */
4034990d495SXin LI 	u_long	badNAK;		/* invalid crypto-NAK */
4042b15cb3dSCy Schubert 	u_long	bogusorg;	/* bogus origin (TEST2, TEST3) */
4052b15cb3dSCy Schubert 	u_long	oldpkt;		/* old duplicate (TEST1) */
4062b15cb3dSCy Schubert 	u_long	seldisptoolarge; /* bad header (TEST6, TEST7) */
4072b15cb3dSCy Schubert 	u_long	selbroken;	/* KoD received */
408c0b746e5SOllivier Robert };
409c0b746e5SOllivier Robert 
410c0b746e5SOllivier Robert /*
411c0b746e5SOllivier Robert  * Values for peer.leap, sys_leap
412c0b746e5SOllivier Robert  */
413c0b746e5SOllivier Robert #define	LEAP_NOWARNING	0x0	/* normal, no leap second warning */
414c0b746e5SOllivier Robert #define	LEAP_ADDSECOND	0x1	/* last minute of day has 61 seconds */
415c0b746e5SOllivier Robert #define	LEAP_DELSECOND	0x2	/* last minute of day has 59 seconds */
416c0b746e5SOllivier Robert #define	LEAP_NOTINSYNC	0x3	/* overload, clock is free running */
417c0b746e5SOllivier Robert 
418c0b746e5SOllivier Robert /*
419ea906c41SOllivier Robert  * Values for peer mode and packet mode. Only the modes through
420ea906c41SOllivier Robert  * MODE_BROADCAST and MODE_BCLIENT appear in the transition
421ea906c41SOllivier Robert  * function. MODE_CONTROL and MODE_PRIVATE can appear in packets,
422ea906c41SOllivier Robert  * but those never survive to the transition function.
423f391d6bcSXin LI  */
4249c2daa00SOllivier Robert #define	MODE_UNSPEC	0	/* unspecified (old version) */
425ea906c41SOllivier Robert #define	MODE_ACTIVE	1	/* symmetric active mode */
426ea906c41SOllivier Robert #define	MODE_PASSIVE	2	/* symmetric passive mode */
427c0b746e5SOllivier Robert #define	MODE_CLIENT	3	/* client mode */
428c0b746e5SOllivier Robert #define	MODE_SERVER	4	/* server mode */
429c0b746e5SOllivier Robert #define	MODE_BROADCAST	5	/* broadcast mode */
430ea906c41SOllivier Robert /*
431ea906c41SOllivier Robert  * These can appear in packets
432ea906c41SOllivier Robert  */
433ea906c41SOllivier Robert #define	MODE_CONTROL	6	/* control mode */
434ea906c41SOllivier Robert #define	MODE_PRIVATE	7	/* private mode */
435ea906c41SOllivier Robert /*
436f391d6bcSXin LI  * This is a made-up mode for broadcast client.
437ea906c41SOllivier Robert  */
438ea906c41SOllivier Robert #define	MODE_BCLIENT	6	/* broadcast client mode */
439c0b746e5SOllivier Robert 
440c0b746e5SOllivier Robert /*
441c0b746e5SOllivier Robert  * Values for peer.stratum, sys_stratum
442c0b746e5SOllivier Robert  */
4439c2daa00SOllivier Robert #define	STRATUM_REFCLOCK ((u_char)0) /* default stratum */
444c0b746e5SOllivier Robert /* A stratum of 0 in the packet is mapped to 16 internally */
445c0b746e5SOllivier Robert #define	STRATUM_PKT_UNSPEC ((u_char)0) /* unspecified in packet */
446224ba2bdSOllivier Robert #define	STRATUM_UNSPEC	((u_char)16) /* unspecified */
447c0b746e5SOllivier Robert 
448c0b746e5SOllivier Robert /*
449a25439b6SCy Schubert  * Values for peer.flags (u_int)
450c0b746e5SOllivier Robert  */
451224ba2bdSOllivier Robert #define	FLAG_CONFIG	0x0001	/* association was configured */
4522b15cb3dSCy Schubert #define	FLAG_PREEMPT	0x0002	/* preemptable association */
453224ba2bdSOllivier Robert #define	FLAG_AUTHENTIC	0x0004	/* last message was authentic */
4542b15cb3dSCy Schubert #define	FLAG_REFCLOCK	0x0008	/* this is actually a reference clock */
4552b15cb3dSCy Schubert #define	FLAG_BC_VOL	0x0010	/* broadcast client volleying */
4562b15cb3dSCy Schubert #define	FLAG_PREFER	0x0020	/* prefer peer */
4572b15cb3dSCy Schubert #define	FLAG_BURST	0x0040	/* burst mode */
4582b15cb3dSCy Schubert #define	FLAG_PPS	0x0080	/* steered by PPS */
4592b15cb3dSCy Schubert #define	FLAG_IBURST	0x0100	/* initial burst mode */
4602b15cb3dSCy Schubert #define	FLAG_NOSELECT	0x0200	/* never select */
4612b15cb3dSCy Schubert #define	FLAG_TRUE	0x0400	/* force truechimer */
4622b15cb3dSCy Schubert #define	FLAG_SKEY	0x0800  /* autokey authentication */
4632b15cb3dSCy Schubert #define	FLAG_XLEAVE	0x1000	/* interleaved protocol */
4642b15cb3dSCy Schubert #define	FLAG_XB		0x2000	/* interleaved broadcast */
4652b15cb3dSCy Schubert #define	FLAG_XBOGUS	0x4000	/* interleaved bogus packet */
4662b15cb3dSCy Schubert #ifdef	OPENSSL
4672b15cb3dSCy Schubert # define FLAG_ASSOC	0x8000	/* autokey request */
4682b15cb3dSCy Schubert #endif /* OPENSSL */
469a25439b6SCy Schubert #define FLAG_TSTAMP_PPS	0x10000	/* PPS source provides absolute timestamp */
4702d4e511cSCy Schubert #define FLAG_LOOPNONCE	0x20000	/* Use a nonce for the loopback test */
471c0b746e5SOllivier Robert 
472c0b746e5SOllivier Robert /*
473c0b746e5SOllivier Robert  * Definitions for the clear() routine.  We use memset() to clear
474c0b746e5SOllivier Robert  * the parts of the peer structure which go to zero.  These are
475c0b746e5SOllivier Robert  * used to calculate the start address and length of the area.
476c0b746e5SOllivier Robert  */
477c0b746e5SOllivier Robert #define	CLEAR_TO_ZERO(p)	((char *)&((p)->clear_to_zero))
478c0b746e5SOllivier Robert #define	END_CLEAR_TO_ZERO(p)	((char *)&((p)->end_clear_to_zero))
4792b15cb3dSCy Schubert #define	LEN_CLEAR_TO_ZERO(p)	(END_CLEAR_TO_ZERO(p) - CLEAR_TO_ZERO(p))
480224ba2bdSOllivier Robert #define CRYPTO_TO_ZERO(p)	((char *)&((p)->clear_to_zero))
481224ba2bdSOllivier Robert #define END_CRYPTO_TO_ZERO(p)	((char *)&((p)->end_clear_to_zero))
482224ba2bdSOllivier Robert #define LEN_CRYPTO_TO_ZERO	(END_CRYPTO_TO_ZERO((struct peer *)0) \
483224ba2bdSOllivier Robert 				    - CRYPTO_TO_ZERO((struct peer *)0))
484224ba2bdSOllivier Robert 
485c0b746e5SOllivier Robert /*
486c0b746e5SOllivier Robert  * Reference clock types.  Added as necessary.
487c0b746e5SOllivier Robert  */
488c0b746e5SOllivier Robert #define	REFCLK_NONE		0	/* unknown or missing */
489c0b746e5SOllivier Robert #define	REFCLK_LOCALCLOCK	1	/* external (e.g., lockclock) */
490c0b746e5SOllivier Robert #define	REFCLK_GPS_TRAK		2	/* TRAK 8810 GPS Receiver */
491c0b746e5SOllivier Robert #define	REFCLK_WWV_PST		3	/* PST/Traconex 1020 WWV/H */
492a151a66cSOllivier Robert #define	REFCLK_SPECTRACOM	4	/* Spectracom (generic) Receivers */
493c0b746e5SOllivier Robert #define	REFCLK_TRUETIME		5	/* TrueTime (generic) Receivers */
494a151a66cSOllivier Robert #define REFCLK_IRIG_AUDIO	6	/* IRIG-B/W audio decoder */
495a151a66cSOllivier Robert #define	REFCLK_CHU_AUDIO	7	/* CHU audio demodulator/decoder */
496c0b746e5SOllivier Robert #define REFCLK_PARSE		8	/* generic driver (usually DCF77,GPS,MSF) */
497c0b746e5SOllivier Robert #define	REFCLK_GPS_MX4200	9	/* Magnavox MX4200 GPS */
498c0b746e5SOllivier Robert #define REFCLK_GPS_AS2201	10	/* Austron 2201A GPS */
499c0b746e5SOllivier Robert #define	REFCLK_GPS_ARBITER	11	/* Arbiter 1088A/B/ GPS */
500c0b746e5SOllivier Robert #define REFCLK_IRIG_TPRO	12	/* KSI/Odetics TPRO-S IRIG */
501c0b746e5SOllivier Robert #define REFCLK_ATOM_LEITCH	13	/* Leitch CSD 5300 Master Clock */
502c0b746e5SOllivier Robert #define REFCLK_MSF_EES		14	/* EES M201 MSF Receiver */
503c0b746e5SOllivier Robert #define	REFCLK_GPSTM_TRUE	15	/* OLD TrueTime GPS/TM-TMD Receiver */
504c0b746e5SOllivier Robert #define REFCLK_IRIG_BANCOMM	16	/* Bancomm GPS/IRIG Interface */
505c0b746e5SOllivier Robert #define REFCLK_GPS_DATUM	17	/* Datum Programmable Time System */
506ea906c41SOllivier Robert #define REFCLK_ACTS		18	/* Generic Auto Computer Time Service */
507c0b746e5SOllivier Robert #define REFCLK_WWV_HEATH	19	/* Heath GC1000 WWV/WWVH Receiver */
508c0b746e5SOllivier Robert #define REFCLK_GPS_NMEA		20	/* NMEA based GPS clock */
509c0b746e5SOllivier Robert #define REFCLK_GPS_VME		21	/* TrueTime GPS-VME Interface */
510c0b746e5SOllivier Robert #define REFCLK_ATOM_PPS		22	/* 1-PPS Clock Discipline */
511ea906c41SOllivier Robert #define REFCLK_PTB_ACTS		23	/* replaced by REFCLK_ACTS */
512ea906c41SOllivier Robert #define REFCLK_USNO		24	/* replaced by REFCLK_ACTS */
513c0b746e5SOllivier Robert #define REFCLK_GPS_HP		26	/* HP 58503A Time/Frequency Receiver */
514c0b746e5SOllivier Robert #define REFCLK_ARCRON_MSF	27	/* ARCRON MSF radio clock. */
515c0b746e5SOllivier Robert #define REFCLK_SHM		28	/* clock attached thru shared memory */
516c0b746e5SOllivier Robert #define REFCLK_PALISADE		29	/* Trimble Navigation Palisade GPS */
517c0b746e5SOllivier Robert #define REFCLK_ONCORE		30	/* Motorola UT Oncore GPS */
518c0b746e5SOllivier Robert #define REFCLK_GPS_JUPITER	31	/* Rockwell Jupiter GPS receiver */
519c0b746e5SOllivier Robert #define REFCLK_CHRONOLOG	32	/* Chrono-log K WWVB receiver */
520c0b746e5SOllivier Robert #define REFCLK_DUMBCLOCK	33	/* Dumb localtime clock */
521c0b746e5SOllivier Robert #define REFCLK_ULINK		34	/* Ultralink M320 WWVB receiver */
522a151a66cSOllivier Robert #define REFCLK_PCF		35	/* Conrad parallel port radio clock */
523a151a66cSOllivier Robert #define REFCLK_WWV_AUDIO	36	/* WWV/H audio demodulator/decoder */
524a151a66cSOllivier Robert #define REFCLK_FG		37	/* Forum Graphic GPS */
5259c2daa00SOllivier Robert #define REFCLK_HOPF_SERIAL	38	/* hopf DCF77/GPS serial receiver  */
526224ba2bdSOllivier Robert #define REFCLK_HOPF_PCI		39	/* hopf DCF77/GPS PCI receiver  */
527ce265a54SOllivier Robert #define REFCLK_JJY		40	/* JJY receiver  */
528ba371819SOllivier Robert #define	REFCLK_TT560		41	/* TrueTime 560 IRIG-B decoder */
529ba371819SOllivier Robert #define REFCLK_ZYFER		42	/* Zyfer GPStarplus receiver  */
530ba371819SOllivier Robert #define REFCLK_RIPENCC		43	/* RIPE NCC Trimble driver */
531ba371819SOllivier Robert #define REFCLK_NEOCLOCK4X	44	/* NeoClock4X DCF77 or TDF receiver */
5322b15cb3dSCy Schubert #define REFCLK_TSYNCPCI		45	/* Spectracom TSYNC PCI timing board */
5332b15cb3dSCy Schubert #define REFCLK_GPSDJSON		46
5342b15cb3dSCy Schubert #define REFCLK_MAX		46
5359c2daa00SOllivier Robert 
5369c2daa00SOllivier Robert 
537c0b746e5SOllivier Robert /*
538c0b746e5SOllivier Robert  * NTP packet format.  The mac field is optional.  It isn't really
539c0b746e5SOllivier Robert  * an l_fp either, but for now declaring it that way is convenient.
540c0b746e5SOllivier Robert  * See Appendix A in the specification.
541c0b746e5SOllivier Robert  *
542c0b746e5SOllivier Robert  * Note that all u_fp and l_fp values arrive in network byte order
543c0b746e5SOllivier Robert  * and must be converted (except the mac, which isn't, really).
544c0b746e5SOllivier Robert  */
545c0b746e5SOllivier Robert struct pkt {
5462b15cb3dSCy Schubert 	u_char	li_vn_mode;	/* peer leap indicator */
547224ba2bdSOllivier Robert 	u_char	stratum;	/* peer stratum */
548224ba2bdSOllivier Robert 	u_char	ppoll;		/* peer poll interval */
549c0b746e5SOllivier Robert 	s_char	precision;	/* peer clock precision */
5502b15cb3dSCy Schubert 	u_fp	rootdelay;	/* roundtrip delay to primary source */
5512b15cb3dSCy Schubert 	u_fp	rootdisp;	/* dispersion to primary source*/
5522b15cb3dSCy Schubert 	u_int32	refid;		/* reference id */
5532b15cb3dSCy Schubert 	l_fp	reftime;	/* last update time */
554c0b746e5SOllivier Robert 	l_fp	org;		/* originate time stamp */
555c0b746e5SOllivier Robert 	l_fp	rec;		/* receive time stamp */
556c0b746e5SOllivier Robert 	l_fp	xmt;		/* transmit time stamp */
557c0b746e5SOllivier Robert 
5584990d495SXin LI #define	MIN_V4_PKT_LEN	(12 * sizeof(u_int32))	/* min header length */
5592b15cb3dSCy Schubert #define	LEN_PKT_NOMAC	(12 * sizeof(u_int32))	/* min header length */
5602b15cb3dSCy Schubert #define	MIN_MAC_LEN	(1 * sizeof(u_int32))	/* crypto_NAK */
5612b15cb3dSCy Schubert #define	MAX_MD5_LEN	(5 * sizeof(u_int32))	/* MD5 */
5622b15cb3dSCy Schubert #define	MAX_MAC_LEN	(6 * sizeof(u_int32))	/* SHA */
56309100258SXin LI #define	KEY_MAC_LEN	sizeof(u_int32)		/* key ID in MAC */
56409100258SXin LI #define	MAX_MDG_LEN	(MAX_MAC_LEN-KEY_MAC_LEN) /* max. digest len */
565c0b746e5SOllivier Robert 
566c0b746e5SOllivier Robert 	/*
567c0b746e5SOllivier Robert 	 * The length of the packet less MAC must be a multiple of 64
5682b15cb3dSCy Schubert 	 * with an RSA modulus and Diffie-Hellman prime of 256 octets
569224ba2bdSOllivier Robert 	 * and maximum host name of 128 octets, the maximum autokey
570224ba2bdSOllivier Robert 	 * command is 152 octets and maximum autokey response is 460
571224ba2bdSOllivier Robert 	 * octets. A packet can contain no more than one command and one
5722b15cb3dSCy Schubert 	 * response, so the maximum total extension field length is 864
573224ba2bdSOllivier Robert 	 * octets. But, to handle humungus certificates, the bank must
574224ba2bdSOllivier Robert 	 * be broke.
5752b15cb3dSCy Schubert 	 *
5762b15cb3dSCy Schubert 	 * The different definitions of the 'exten' field are here for
5772b15cb3dSCy Schubert 	 * the benefit of applications that want to send a packet from
5782b15cb3dSCy Schubert 	 * an auto variable in the stack - not using the AUTOKEY version
5792b15cb3dSCy Schubert 	 * saves 2KB of stack space. The receive buffer should ALWAYS be
5802b15cb3dSCy Schubert 	 * big enough to hold a full extended packet if the extension
5812b15cb3dSCy Schubert 	 * fields have to be parsed or skipped.
582c0b746e5SOllivier Robert 	 */
5832b15cb3dSCy Schubert #ifdef AUTOKEY
5842b15cb3dSCy Schubert 	u_int32	exten[(NTP_MAXEXTEN + MAX_MAC_LEN) / sizeof(u_int32)];
5852b15cb3dSCy Schubert #else	/* !AUTOKEY follows */
5862b15cb3dSCy Schubert 	u_int32	exten[(MAX_MAC_LEN) / sizeof(u_int32)];
5872b15cb3dSCy Schubert #endif	/* !AUTOKEY */
588c0b746e5SOllivier Robert };
589c0b746e5SOllivier Robert 
590c0b746e5SOllivier Robert /*
591c0b746e5SOllivier Robert  * Stuff for extracting things from li_vn_mode
592c0b746e5SOllivier Robert  */
593c0b746e5SOllivier Robert #define	PKT_MODE(li_vn_mode)	((u_char)((li_vn_mode) & 0x7))
594c0b746e5SOllivier Robert #define	PKT_VERSION(li_vn_mode)	((u_char)(((li_vn_mode) >> 3) & 0x7))
595c0b746e5SOllivier Robert #define	PKT_LEAP(li_vn_mode)	((u_char)(((li_vn_mode) >> 6) & 0x3))
596c0b746e5SOllivier Robert 
597c0b746e5SOllivier Robert /*
5982b15cb3dSCy Schubert  * Stuff for putting things back into li_vn_mode in packets and vn_mode
5992b15cb3dSCy Schubert  * in ntp_monitor.c's mon_entry.
600c0b746e5SOllivier Robert  */
6012b15cb3dSCy Schubert #define VN_MODE(v, m)		((((v) & 7) << 3) | ((m) & 0x7))
6022b15cb3dSCy Schubert #define	PKT_LI_VN_MODE(l, v, m) ((((l) & 3) << 6) | VN_MODE((v), (m)))
603c0b746e5SOllivier Robert 
604c0b746e5SOllivier Robert 
605c0b746e5SOllivier Robert /*
606c0b746e5SOllivier Robert  * Dealing with stratum.  0 gets mapped to 16 incoming, and back to 0
607c0b746e5SOllivier Robert  * on output.
608c0b746e5SOllivier Robert  */
609c0b746e5SOllivier Robert #define	PKT_TO_STRATUM(s)	((u_char)(((s) == (STRATUM_PKT_UNSPEC)) ?\
610c0b746e5SOllivier Robert 				(STRATUM_UNSPEC) : (s)))
611c0b746e5SOllivier Robert 
612c0b746e5SOllivier Robert #define	STRATUM_TO_PKT(s)	((u_char)(((s) == (STRATUM_UNSPEC)) ?\
613c0b746e5SOllivier Robert 				(STRATUM_PKT_UNSPEC) : (s)))
614c0b746e5SOllivier Robert 
6154e1ef62aSXin LI 
6164e1ef62aSXin LI /*
6174e1ef62aSXin LI  * A test to determine if the refid should be interpreted as text string.
6184e1ef62aSXin LI  * This is usually the case for a refclock, which has stratum 0 internally,
6194e1ef62aSXin LI  * which results in sys_stratum 1 if the refclock becomes system peer, or
6204e1ef62aSXin LI  * in case of a kiss-of-death (KoD) packet that has STRATUM_PKT_UNSPEC (==0)
6214e1ef62aSXin LI  * in the packet which is converted to STRATUM_UNSPEC when the packet
6224e1ef62aSXin LI  * is evaluated.
6234e1ef62aSXin LI  */
6244e1ef62aSXin LI #define REFID_ISTEXT(s) (((s) <= 1) || ((s) >= STRATUM_UNSPEC))
6254e1ef62aSXin LI 
6264e1ef62aSXin LI 
627c0b746e5SOllivier Robert /*
628c0b746e5SOllivier Robert  * Event codes. Used for reporting errors/events to the control module
629c0b746e5SOllivier Robert  */
6309c2daa00SOllivier Robert #define	PEER_EVENT	0x080	/* this is a peer event */
6319c2daa00SOllivier Robert #define CRPT_EVENT	0x100	/* this is a crypto event */
632c0b746e5SOllivier Robert 
633224ba2bdSOllivier Robert /*
634224ba2bdSOllivier Robert  * System event codes
635224ba2bdSOllivier Robert  */
636224ba2bdSOllivier Robert #define	EVNT_UNSPEC	0	/* unspecified */
6372b15cb3dSCy Schubert #define	EVNT_NSET	1	/* freq not set */
6382b15cb3dSCy Schubert #define	EVNT_FSET	2	/* freq set */
6392b15cb3dSCy Schubert #define	EVNT_SPIK	3	/* spike detect */
6402b15cb3dSCy Schubert #define	EVNT_FREQ	4	/* freq mode */
6412b15cb3dSCy Schubert #define	EVNT_SYNC	5	/* clock sync */
6422b15cb3dSCy Schubert #define	EVNT_SYSRESTART	6	/* restart */
6432b15cb3dSCy Schubert #define	EVNT_SYSFAULT	7	/* panic stop */
6442b15cb3dSCy Schubert #define	EVNT_NOPEER	8	/* no sys peer */
6452b15cb3dSCy Schubert #define	EVNT_ARMED	9	/* leap armed */
6462b15cb3dSCy Schubert #define	EVNT_DISARMED	10	/* leap disarmed */
6472b15cb3dSCy Schubert #define	EVNT_LEAP	11	/* leap event */
6482b15cb3dSCy Schubert #define	EVNT_CLOCKRESET	12	/* clock step */
6492b15cb3dSCy Schubert #define	EVNT_KERN	13	/* kernel event */
6502b15cb3dSCy Schubert #define	EVNT_TAI	14	/* TAI */
6512b15cb3dSCy Schubert #define	EVNT_LEAPVAL	15	/* stale leapsecond values */
652c0b746e5SOllivier Robert 
653224ba2bdSOllivier Robert /*
654224ba2bdSOllivier Robert  * Peer event codes
655224ba2bdSOllivier Robert  */
6562b15cb3dSCy Schubert #define	PEVNT_MOBIL	(1 | PEER_EVENT) /* mobilize */
6572b15cb3dSCy Schubert #define	PEVNT_DEMOBIL	(2 | PEER_EVENT) /* demobilize */
6582b15cb3dSCy Schubert #define	PEVNT_UNREACH	(3 | PEER_EVENT) /* unreachable */
6592b15cb3dSCy Schubert #define	PEVNT_REACH	(4 | PEER_EVENT) /* reachable */
6602b15cb3dSCy Schubert #define	PEVNT_RESTART	(5 | PEER_EVENT) /* restart */
6612b15cb3dSCy Schubert #define	PEVNT_REPLY	(6 | PEER_EVENT) /* no reply */
6622b15cb3dSCy Schubert #define	PEVNT_RATE	(7 | PEER_EVENT) /* rate exceeded */
6632b15cb3dSCy Schubert #define	PEVNT_DENY	(8 | PEER_EVENT) /* access denied */
6642b15cb3dSCy Schubert #define PEVNT_ARMED	(9 | PEER_EVENT) /* leap armed */
6652b15cb3dSCy Schubert #define	PEVNT_NEWPEER	(10 | PEER_EVENT) /* sys peer */
6662b15cb3dSCy Schubert #define	PEVNT_CLOCK	(11 | PEER_EVENT) /* clock event */
6672b15cb3dSCy Schubert #define	PEVNT_AUTH	(12 | PEER_EVENT) /* bad auth */
6682b15cb3dSCy Schubert #define	PEVNT_POPCORN	(13 | PEER_EVENT) /* popcorn */
6692b15cb3dSCy Schubert #define	PEVNT_XLEAVE	(14 | PEER_EVENT) /* interleave mode */
6702b15cb3dSCy Schubert #define	PEVNT_XERR	(15 | PEER_EVENT) /* interleave error */
671c0b746e5SOllivier Robert 
672c0b746e5SOllivier Robert /*
673c0b746e5SOllivier Robert  * Clock event codes
674c0b746e5SOllivier Robert  */
675224ba2bdSOllivier Robert #define	CEVNT_NOMINAL	0	/* unspecified */
6762b15cb3dSCy Schubert #define	CEVNT_TIMEOUT	1	/* no reply */
6772b15cb3dSCy Schubert #define	CEVNT_BADREPLY	2	/* bad format */
6782b15cb3dSCy Schubert #define	CEVNT_FAULT	3	/* fault */
6792b15cb3dSCy Schubert #define	CEVNT_PROP	4	/* bad signal */
6802b15cb3dSCy Schubert #define	CEVNT_BADDATE	5	/* bad date */
6812b15cb3dSCy Schubert #define	CEVNT_BADTIME	6	/* bad time */
682c0b746e5SOllivier Robert #define CEVNT_MAX	CEVNT_BADTIME
683c0b746e5SOllivier Robert 
684c0b746e5SOllivier Robert /*
685c0b746e5SOllivier Robert  * Very misplaced value.  Default port through which we send traps.
686c0b746e5SOllivier Robert  */
687c0b746e5SOllivier Robert #define	TRAPPORT	18447
688c0b746e5SOllivier Robert 
689c0b746e5SOllivier Robert 
690c0b746e5SOllivier Robert /*
691224ba2bdSOllivier Robert  * To speed lookups, peers are hashed by the low order bits of the
692224ba2bdSOllivier Robert  * remote IP address. These definitions relate to that.
693c0b746e5SOllivier Robert  */
694ea906c41SOllivier Robert #define	NTP_HASH_SIZE		128
695ea906c41SOllivier Robert #define	NTP_HASH_MASK		(NTP_HASH_SIZE-1)
6962b15cb3dSCy Schubert #define	NTP_HASH_ADDR(src)	(sock_hash(src) & NTP_HASH_MASK)
697c0b746e5SOllivier Robert 
698c0b746e5SOllivier Robert /*
699c0b746e5SOllivier Robert  * min, min3 and max.  Makes it easier to transliterate the spec without
700c0b746e5SOllivier Robert  * thinking about it.
701c0b746e5SOllivier Robert  */
702c0b746e5SOllivier Robert #define	min(a,b)	(((a) < (b)) ? (a) : (b))
703c0b746e5SOllivier Robert #define	max(a,b)	(((a) > (b)) ? (a) : (b))
704c0b746e5SOllivier Robert #define	min3(a,b,c)	min(min((a),(b)), (c))
705c0b746e5SOllivier Robert 
706c0b746e5SOllivier Robert 
707c0b746e5SOllivier Robert /*
708c0b746e5SOllivier Robert  * Configuration items.  These are for the protocol module (proto_config())
709c0b746e5SOllivier Robert  */
710c0b746e5SOllivier Robert #define	PROTO_BROADCLIENT	1
711c0b746e5SOllivier Robert #define	PROTO_PRECISION		2	/* (not used) */
712c0b746e5SOllivier Robert #define	PROTO_AUTHENTICATE	3
713c0b746e5SOllivier Robert #define	PROTO_BROADDELAY	4
714c0b746e5SOllivier Robert #define	PROTO_AUTHDELAY		5	/* (not used) */
715c0b746e5SOllivier Robert #define PROTO_MULTICAST_ADD	6
716c0b746e5SOllivier Robert #define PROTO_MULTICAST_DEL	7
717c0b746e5SOllivier Robert #define PROTO_NTP		8
718c0b746e5SOllivier Robert #define PROTO_KERNEL		9
719c0b746e5SOllivier Robert #define PROTO_MONITOR		10
720c0b746e5SOllivier Robert #define PROTO_FILEGEN		11
721224ba2bdSOllivier Robert #define	PROTO_PPS		12
722224ba2bdSOllivier Robert #define PROTO_CAL		13
7239c2daa00SOllivier Robert #define PROTO_MINCLOCK		14
724ea906c41SOllivier Robert #define	PROTO_MAXCLOCK		15
725ea906c41SOllivier Robert #define PROTO_MINSANE		16
726ea906c41SOllivier Robert #define PROTO_FLOOR		17
727ea906c41SOllivier Robert #define PROTO_CEILING		18
728ea906c41SOllivier Robert #define PROTO_COHORT		19
729ea906c41SOllivier Robert #define PROTO_CALLDELAY		20
730ea906c41SOllivier Robert #define PROTO_MINDISP		21
731ea906c41SOllivier Robert #define PROTO_MAXDIST		22
7322b15cb3dSCy Schubert 	/* available		23 */
733ea906c41SOllivier Robert #define	PROTO_MAXHOP		24
734ea906c41SOllivier Robert #define	PROTO_BEACON		25
735ea906c41SOllivier Robert #define	PROTO_ORPHAN		26
7362b15cb3dSCy Schubert #define	PROTO_ORPHWAIT		27
7372b15cb3dSCy Schubert #define	PROTO_MODE7		28
73868ba7e87SXin LI #define	PROTO_UECRYPTO		29
73968ba7e87SXin LI #define	PROTO_UECRYPTONAK	30
74068ba7e87SXin LI #define	PROTO_UEDIGEST		31
741e27abb66SXin LI #define	PROTO_PCEDIGEST		32
742f391d6bcSXin LI #define	PROTO_BCPOLLBSTEP	33
743c0b746e5SOllivier Robert 
744c0b746e5SOllivier Robert /*
745c0b746e5SOllivier Robert  * Configuration items for the loop filter
746c0b746e5SOllivier Robert  */
7472b15cb3dSCy Schubert #define	LOOP_DRIFTINIT		1	/* iniitialize frequency */
7482b15cb3dSCy Schubert #define	LOOP_KERN_CLEAR		2	/* set initial frequency offset */
749a25439b6SCy Schubert #define LOOP_MAX		3	/* set both step offsets */
750f391d6bcSXin LI #define LOOP_MAX_BACK		4	/* set backward-step offset */
751a25439b6SCy Schubert #define LOOP_MAX_FWD		5	/* set forward-step offset */
752a25439b6SCy Schubert #define LOOP_PANIC		6	/* set panic offseet */
753a25439b6SCy Schubert #define LOOP_PHI		7	/* set dispersion rate */
754a25439b6SCy Schubert #define LOOP_MINSTEP		8	/* set step timeout */
755a25439b6SCy Schubert #define LOOP_MINPOLL		9	/* set min poll interval (log2 s) */
756a25439b6SCy Schubert #define LOOP_ALLAN		10	/* set minimum Allan intercept */
757a25439b6SCy Schubert #define LOOP_HUFFPUFF		11	/* set huff-n'-puff filter length */
758a25439b6SCy Schubert #define LOOP_FREQ		12	/* set initial frequency */
759a25439b6SCy Schubert #define LOOP_CODEC		13	/* set audio codec frequency */
760a25439b6SCy Schubert #define	LOOP_LEAP		14	/* insert leap after second 23:59 */
761a25439b6SCy Schubert #define	LOOP_TICK		15	/* sim. low precision clock */
762*a466cc55SCy Schubert #define LOOP_NOFREQ		16	/* undo a previos LOOP_FREQ */
763c0b746e5SOllivier Robert 
764c0b746e5SOllivier Robert /*
765c0b746e5SOllivier Robert  * Configuration items for the stats printer
766c0b746e5SOllivier Robert  */
767c0b746e5SOllivier Robert #define	STATS_FREQ_FILE		1	/* configure drift file */
768c0b746e5SOllivier Robert #define STATS_STATSDIR		2	/* directory prefix for stats files */
769c0b746e5SOllivier Robert #define	STATS_PID_FILE		3	/* configure ntpd PID file */
7702b15cb3dSCy Schubert #define	STATS_LEAP_FILE		4	/* configure ntpd leapseconds file */
771c0b746e5SOllivier Robert 
7729c2daa00SOllivier Robert #define MJD_1900		15020	/* MJD for 1 Jan 1900 */
773c0b746e5SOllivier Robert 
774c0b746e5SOllivier Robert /*
775c0b746e5SOllivier Robert  * Default parameters.  We use these in the absence of something better.
776c0b746e5SOllivier Robert  */
777c0b746e5SOllivier Robert #define INADDR_NTP	0xe0000101	/* NTP multicast address 224.0.1.1 */
778224ba2bdSOllivier Robert 
779c0b746e5SOllivier Robert /*
780c0b746e5SOllivier Robert  * Structure used optionally for monitoring when this is turned on.
781c0b746e5SOllivier Robert  */
7822b15cb3dSCy Schubert typedef struct mon_data	mon_entry;
783c0b746e5SOllivier Robert struct mon_data {
7842b15cb3dSCy Schubert 	mon_entry *	hash_next;	/* next structure in hash list */
7852b15cb3dSCy Schubert 	DECL_DLIST_LINK(mon_entry, mru);/* MRU list link pointers */
7862b15cb3dSCy Schubert 	struct interface * lcladr;	/* address on which this arrived */
7872b15cb3dSCy Schubert 	l_fp		first;		/* first time seen */
7882b15cb3dSCy Schubert 	l_fp		last;		/* last time seen */
7892b15cb3dSCy Schubert 	int		leak;		/* leaky bucket accumulator */
7902b15cb3dSCy Schubert 	int		count;		/* total packet count */
7912b15cb3dSCy Schubert 	u_short		flags;		/* restrict flags */
7922b15cb3dSCy Schubert 	u_char		vn_mode;	/* packet mode & version */
793c0b746e5SOllivier Robert 	u_char		cast_flags;	/* flags MDF_?CAST */
7942b15cb3dSCy Schubert 	sockaddr_u	rmtadr;		/* address of remote host */
795c0b746e5SOllivier Robert };
796c0b746e5SOllivier Robert 
797224ba2bdSOllivier Robert /*
7982b15cb3dSCy Schubert  * Values for cast_flags in mon_entry and struct peer.  mon_entry uses
7992b15cb3dSCy Schubert  * only the first three, MDF_UCAST, MDF_MCAST, and MDF_BCAST.
800224ba2bdSOllivier Robert  */
8012b15cb3dSCy Schubert #define	MDF_UCAST	0x01	/* unicast client */
8022b15cb3dSCy Schubert #define	MDF_MCAST	0x02	/* multicast server */
8032b15cb3dSCy Schubert #define	MDF_BCAST	0x04	/* broadcast server */
8042b15cb3dSCy Schubert #define	MDF_POOL	0x08	/* pool client solicitor */
8052b15cb3dSCy Schubert #define MDF_ACAST	0x10	/* manycast client solicitor */
8062b15cb3dSCy Schubert #define	MDF_BCLNT	0x20	/* eph. broadcast/multicast client */
8072b15cb3dSCy Schubert #define MDF_UCLNT	0x40	/* preemptible manycast or pool client */
8082b15cb3dSCy Schubert /*
8092b15cb3dSCy Schubert  * In the context of struct peer in ntpd, three of the cast_flags bits
8102b15cb3dSCy Schubert  * represent configured associations which never receive packets, and
8112b15cb3dSCy Schubert  * whose reach is always 0: MDF_BCAST, MDF_MCAST, and MDF_ACAST.  The
8122b15cb3dSCy Schubert  * last can be argued as responses are received, but those responses do
8132b15cb3dSCy Schubert  * not affect the MDF_ACAST association's reach register, rather they
8142b15cb3dSCy Schubert  * (may) result in mobilizing ephemeral MDF_ACLNT associations.
8152b15cb3dSCy Schubert  */
8162b15cb3dSCy Schubert #define MDF_TXONLY_MASK	(MDF_BCAST | MDF_MCAST | MDF_ACAST | MDF_POOL)
8172b15cb3dSCy Schubert /*
8182b15cb3dSCy Schubert  * manycastclient-like solicitor association cast_flags bits
8192b15cb3dSCy Schubert  */
8202b15cb3dSCy Schubert #define MDF_SOLICIT_MASK	(MDF_ACAST | MDF_POOL)
821c0b746e5SOllivier Robert /*
822c0b746e5SOllivier Robert  * Values used with mon_enabled to indicate reason for enabling monitoring
823c0b746e5SOllivier Robert  */
824c0b746e5SOllivier Robert #define MON_OFF		0x00		/* no monitoring */
825c0b746e5SOllivier Robert #define MON_ON		0x01		/* monitoring explicitly enabled */
826c0b746e5SOllivier Robert #define MON_RES		0x02		/* implicit monitoring for RES_LIMITED */
827c0b746e5SOllivier Robert /*
828c0b746e5SOllivier Robert  * Structure used for restrictlist entries
829c0b746e5SOllivier Robert  */
8302b15cb3dSCy Schubert typedef struct res_addr4_tag {
8312b15cb3dSCy Schubert 	u_int32		addr;		/* IPv4 addr (host order) */
8322b15cb3dSCy Schubert 	u_int32		mask;		/* IPv4 mask (host order) */
8332b15cb3dSCy Schubert } res_addr4;
8342b15cb3dSCy Schubert 
8352b15cb3dSCy Schubert typedef struct res_addr6_tag {
8362b15cb3dSCy Schubert 	struct in6_addr addr;		/* IPv6 addr (net order) */
8372b15cb3dSCy Schubert 	struct in6_addr mask;		/* IPv6 mask (net order) */
8382b15cb3dSCy Schubert } res_addr6;
8392b15cb3dSCy Schubert 
8402b15cb3dSCy Schubert typedef struct restrict_u_tag	restrict_u;
8412b15cb3dSCy Schubert struct restrict_u_tag {
8422b15cb3dSCy Schubert 	restrict_u *	link;		/* link to next entry */
8432b15cb3dSCy Schubert 	u_int32		count;		/* number of packets matched */
84409100258SXin LI 	u_short		rflags;		/* restrict (accesslist) flags */
845c0b746e5SOllivier Robert 	u_short		mflags;		/* match flags */
84609100258SXin LI 	short		ippeerlimit;	/* IP peer limit */
8472d4e511cSCy Schubert 	int		srvfuzrftpoll;	/* server response: fuzz reftime */
8482b15cb3dSCy Schubert 	u_long		expire;		/* valid until time */
8492b15cb3dSCy Schubert 	union {				/* variant starting here */
8502b15cb3dSCy Schubert 		res_addr4 v4;
8512b15cb3dSCy Schubert 		res_addr6 v6;
8522b15cb3dSCy Schubert 	} u;
853c0b746e5SOllivier Robert };
8542b15cb3dSCy Schubert #define	V4_SIZEOF_RESTRICT_U	(offsetof(restrict_u, u)	\
8552b15cb3dSCy Schubert 				 + sizeof(res_addr4))
8562b15cb3dSCy Schubert #define	V6_SIZEOF_RESTRICT_U	(offsetof(restrict_u, u)	\
8572b15cb3dSCy Schubert 				 + sizeof(res_addr6))
8589c2daa00SOllivier Robert 
85909100258SXin LI typedef struct r4addr_tag	r4addr;
86009100258SXin LI struct r4addr_tag {
86109100258SXin LI 	u_short		rflags;		/* match flags */
86209100258SXin LI 	short		ippeerlimit;	/* IP peer limit */
86309100258SXin LI };
86409100258SXin LI 
86509100258SXin LI char *build_iflags(u_int32 flags);
86609100258SXin LI char *build_mflags(u_short mflags);
86709100258SXin LI char *build_rflags(u_short rflags);
86809100258SXin LI 
869c0b746e5SOllivier Robert /*
87009100258SXin LI  * Restrict (Access) flags (rflags)
871c0b746e5SOllivier Robert  */
8722b15cb3dSCy Schubert #define	RES_IGNORE		0x0001	/* ignore packet */
8732b15cb3dSCy Schubert #define	RES_DONTSERVE		0x0002	/* access denied */
8742b15cb3dSCy Schubert #define	RES_DONTTRUST		0x0004	/* authentication required */
8752b15cb3dSCy Schubert #define	RES_VERSION		0x0008	/* version mismatch */
8762b15cb3dSCy Schubert #define	RES_NOPEER		0x0010	/* new association denied */
87709100258SXin LI #define	RES_NOEPEER		0x0020	/* new ephemeral association denied */
87809100258SXin LI #define RES_LIMITED		0x0040	/* packet rate exceeded */
8799c2daa00SOllivier Robert #define RES_FLAGS		(RES_IGNORE | RES_DONTSERVE |\
8809c2daa00SOllivier Robert 				    RES_DONTTRUST | RES_VERSION |\
88109100258SXin LI 				    RES_NOPEER | RES_NOEPEER | RES_LIMITED)
8829c2daa00SOllivier Robert 
88309100258SXin LI #define	RES_NOQUERY		0x0080	/* mode 6/7 packet denied */
88409100258SXin LI #define	RES_NOMODIFY		0x0100	/* mode 6/7 modify denied */
88509100258SXin LI #define	RES_NOTRAP		0x0200	/* mode 6/7 set trap denied */
88609100258SXin LI #define	RES_LPTRAP		0x0400	/* mode 6/7 low priority trap */
8879c2daa00SOllivier Robert 
88809100258SXin LI #define	RES_KOD			0x0800	/* send kiss of death packet */
88909100258SXin LI #define	RES_MSSNTP		0x1000	/* enable MS-SNTP authentication */
89009100258SXin LI #define	RES_FLAKE		0x2000	/* flakeway - drop 10% */
89109100258SXin LI #define	RES_NOMRULIST		0x4000	/* mode 6 mrulist denied */
8922d4e511cSCy Schubert 
8932d4e511cSCy Schubert #define	RES_SRVRSPFUZ		0x8000	/* Server response: fuzz */
8942d4e511cSCy Schubert 
8952d4e511cSCy Schubert #define RES_UNUSED		0x0000	/* Unused flag bits (none left) */
8969c2daa00SOllivier Robert 
8979c2daa00SOllivier Robert #define	RES_ALLFLAGS		(RES_FLAGS | RES_NOQUERY |	\
8989c2daa00SOllivier Robert 				 RES_NOMODIFY | RES_NOTRAP |	\
8992b15cb3dSCy Schubert 				 RES_LPTRAP | RES_KOD |		\
9002b15cb3dSCy Schubert 				 RES_MSSNTP | RES_FLAKE |	\
9012d4e511cSCy Schubert 				 RES_NOMRULIST | RES_SRVRSPFUZ )
902c0b746e5SOllivier Robert 
903c0b746e5SOllivier Robert /*
90409100258SXin LI  * Match flags (mflags)
905c0b746e5SOllivier Robert  */
9062b15cb3dSCy Schubert #define	RESM_INTERFACE		0x1000	/* this is an interface */
9072b15cb3dSCy Schubert #define	RESM_NTPONLY		0x2000	/* match source port 123 */
9082b15cb3dSCy Schubert #define RESM_SOURCE		0x4000	/* from "restrict source" */
909c0b746e5SOllivier Robert 
910c0b746e5SOllivier Robert /*
911c0b746e5SOllivier Robert  * Restriction configuration ops
912c0b746e5SOllivier Robert  */
91309100258SXin LI typedef enum
91409100258SXin LI restrict_ops {
91509100258SXin LI 	RESTRICT_FLAGS = 1,	/* add rflags to restrict entry */
91609100258SXin LI 	RESTRICT_UNFLAG,	/* remove rflags from restrict entry */
91709100258SXin LI 	RESTRICT_REMOVE,	/* remove a restrict entry */
91809100258SXin LI 	RESTRICT_REMOVEIF,	/* remove an interface restrict entry */
91909100258SXin LI } restrict_op;
920c0b746e5SOllivier Robert 
921c0b746e5SOllivier Robert /*
922c0b746e5SOllivier Robert  * Endpoint structure for the select algorithm
923c0b746e5SOllivier Robert  */
924c0b746e5SOllivier Robert struct endpoint {
925c0b746e5SOllivier Robert 	double	val;			/* offset of endpoint */
926c0b746e5SOllivier Robert 	int	type;			/* interval entry/exit */
927c0b746e5SOllivier Robert };
928c0b746e5SOllivier Robert 
929c0b746e5SOllivier Robert /*
930c0b746e5SOllivier Robert  * Association matching AM[] return codes
931c0b746e5SOllivier Robert  */
932ea906c41SOllivier Robert #define AM_ERR		-1		/* error */
933ea906c41SOllivier Robert #define AM_NOMATCH	0		/* no match */
934ea906c41SOllivier Robert #define AM_PROCPKT	1		/* server/symmetric packet */
935ea906c41SOllivier Robert #define AM_BCST		2		/* broadcast packet */
936ea906c41SOllivier Robert #define AM_FXMIT	3		/* client packet */
9372b15cb3dSCy Schubert #define AM_MANYCAST	4		/* manycast or pool */
938ea906c41SOllivier Robert #define AM_NEWPASS	5		/* new passive */
939ea906c41SOllivier Robert #define AM_NEWBCL	6		/* new broadcast */
940ea906c41SOllivier Robert #define AM_POSSBCL	7		/* discard broadcast */
941c0b746e5SOllivier Robert 
942c0b746e5SOllivier Robert /* NetInfo configuration locations */
943c0b746e5SOllivier Robert #ifdef HAVE_NETINFO
944c0b746e5SOllivier Robert #define NETINFO_CONFIG_DIR "/config/ntp"
945c0b746e5SOllivier Robert #endif
946c0b746e5SOllivier Robert 
9472b15cb3dSCy Schubert /* ntpq -c mrulist rows per request limit in ntpd */
9482b15cb3dSCy Schubert #define MRU_ROW_LIMIT	256
9492b15cb3dSCy Schubert /* similar datagrams per response limit for ntpd */
9502b15cb3dSCy Schubert #define MRU_FRAGS_LIMIT	128
951c0b746e5SOllivier Robert #endif /* NTP_H */
952