1 /*	$NetBSD: ntp_request.h,v 1.1.1.1 2009/12/13 16:54:53 kardel Exp $	*/
2 
3 /*
4  * ntp_request.h - definitions for the ntpd remote query facility
5  */
6 
7 #ifndef NTP_REQUEST_H
8 #define NTP_REQUEST_H
9 
10 #include "stddef.h"
11 #include "ntp_types.h"
12 #include "recvbuff.h"
13 
14 /*
15  * A mode 7 packet is used exchanging data between an NTP server
16  * and a client for purposes other than time synchronization, e.g.
17  * monitoring, statistics gathering and configuration.  A mode 7
18  * packet has the following format:
19  *
20  *    0			  1		      2			  3
21  *    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
22  *   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
23  *   |R|M| VN  | Mode|A|  Sequence   | Implementation|   Req Code    |
24  *   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
25  *   |  Err  | Number of data items  |  MBZ  |   Size of data item   |
26  *   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
27  *   |								     |
28  *   |            Data (Minimum 0 octets, maximum 500 octets)        |
29  *   |								     |
30  *                            [...]
31  *   |								     |
32  *   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
33  *   |               Encryption Keyid (when A bit set)               |
34  *   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
35  *   |								     |
36  *   |          Message Authentication Code (when A bit set)         |
37  *   |								     |
38  *   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
39  *
40  * where the fields are (note that the client sends requests, the server
41  * responses):
42  *
43  * Response Bit:  This packet is a response (if clear, packet is a request).
44  *
45  * More Bit:	Set for all packets but the last in a response which
46  *		requires more than one packet.
47  *
48  * Version Number: 2 for current version
49  *
50  * Mode:	Always 7
51  *
52  * Authenticated bit: If set, this packet is authenticated.
53  *
54  * Sequence number: For a multipacket response, contains the sequence
55  *		number of this packet.  0 is the first in the sequence,
56  *		127 (or less) is the last.  The More Bit must be set in
57  *		all packets but the last.
58  *
59  * Implementation number: The number of the implementation this request code
60  *		is defined by.  An implementation number of zero is used
61  *		for requst codes/data formats which all implementations
62  *		agree on.  Implementation number 255 is reserved (for
63  *		extensions, in case we run out).
64  *
65  * Request code: An implementation-specific code which specifies the
66  *		operation to be (which has been) performed and/or the
67  *		format and semantics of the data included in the packet.
68  *
69  * Err:		Must be 0 for a request.  For a response, holds an error
70  *		code relating to the request.  If nonzero, the operation
71  *		requested wasn't performed.
72  *
73  *		0 - no error
74  *		1 - incompatable implementation number
75  *		2 - unimplemented request code
76  *		3 - format error (wrong data items, data size, packet size etc.)
77  *		4 - no data available (e.g. request for details on unknown peer)
78  *		5-6 I don't know
79  *		7 - authentication failure (i.e. permission denied)
80  *
81  * Number of data items: number of data items in packet.  0 to 500
82  *
83  * MBZ:		A reserved data field, must be zero in requests and responses.
84  *
85  * Size of data item: size of each data item in packet.  0 to 500
86  *
87  * Data:	Variable sized area containing request/response data.  For
88  *		requests and responses the size in octets must be greater
89  *		than or equal to the product of the number of data items
90  *		and the size of a data item.  For requests the data area
91  *		must be exactly 40 octets in length.  For responses the
92  *		data area may be any length between 0 and 500 octets
93  *		inclusive.
94  *
95  * Message Authentication Code: Same as NTP spec, in definition and function.
96  *		May optionally be included in requests which require
97  *		authentication, is never included in responses.
98  *
99  * The version number, mode and keyid have the same function and are
100  * in the same location as a standard NTP packet.  The request packet
101  * is the same size as a standard NTP packet to ease receive buffer
102  * management, and to allow the same encryption procedure to be used
103  * both on mode 7 and standard NTP packets.  The mac is included when
104  * it is required that a request be authenticated, the keyid should be
105  * zero in requests in which the mac is not included.
106  *
107  * The data format depends on the implementation number/request code pair
108  * and whether the packet is a request or a response.  The only requirement
109  * is that data items start in the octet immediately following the size
110  * word and that data items be concatenated without padding between (i.e.
111  * if the data area is larger than data_items*size, all padding is at
112  * the end).  Padding is ignored, other than for encryption purposes.
113  * Implementations using encryption might want to include a time stamp
114  * or other data in the request packet padding.  The key used for requests
115  * is implementation defined, but key 15 is suggested as a default.
116  */
117 
118 /*
119  * union of raw addresses to save space
120  */
121 union addrun
122 {
123 	struct in6_addr addr6;
124 	struct in_addr  addr;
125 };
126 
127 /*
128  * A request packet.  These are almost a fixed length.
129  */
130 struct req_pkt {
131 	u_char rm_vn_mode;		/* response, more, version, mode */
132 	u_char auth_seq;		/* key, sequence number */
133 	u_char implementation;		/* implementation number */
134 	u_char request;			/* request number */
135 	u_short err_nitems;		/* error code/number of data items */
136 	u_short mbz_itemsize;		/* item size */
137 	char data[MAXFILENAME + 48];	/* data area [32 prev](176 byte max) */
138 					/* struct conf_peer must fit */
139 	l_fp tstamp;			/* time stamp, for authentication */
140 	keyid_t keyid;			/* (optional) encryption key */
141 	char mac[MAX_MAC_LEN-sizeof(keyid_t)]; /* (optional) auth code */
142 };
143 
144 /*
145  * The req_pkt_tail structure is used by ntpd to adjust for different
146  * packet sizes that may arrive.
147  */
148 struct req_pkt_tail {
149 	l_fp tstamp;			/* time stamp, for authentication */
150 	keyid_t keyid;			/* (optional) encryption key */
151 	char mac[MAX_MAC_LEN-sizeof(keyid_t)]; /* (optional) auth code */
152 };
153 
154 /* MODE_PRIVATE request packet header length before optional items. */
155 #define	REQ_LEN_HDR	(offsetof(struct req_pkt, data))
156 /* MODE_PRIVATE request packet fixed length without MAC. */
157 #define	REQ_LEN_NOMAC	(offsetof(struct req_pkt, keyid))
158 /* MODE_PRIVATE req_pkt_tail minimum size (16 octet digest) */
159 #define REQ_TAIL_MIN	\
160 	(sizeof(struct req_pkt_tail) - (MAX_MAC_LEN - MAX_MD5_LEN))
161 
162 /*
163  * A MODE_PRIVATE response packet.  The length here is variable, this
164  * is a maximally sized one.  Note that this implementation doesn't
165  * authenticate responses.
166  */
167 #define	RESP_HEADER_SIZE	(offsetof(struct resp_pkt, data))
168 #define	RESP_DATA_SIZE		(500)
169 
170 struct resp_pkt {
171 	u_char rm_vn_mode;		/* response, more, version, mode */
172 	u_char auth_seq;		/* key, sequence number */
173 	u_char implementation;		/* implementation number */
174 	u_char request;			/* request number */
175 	u_short err_nitems;		/* error code/number of data items */
176 	u_short mbz_itemsize;		/* item size */
177 	char data[RESP_DATA_SIZE];	/* data area */
178 };
179 
180 
181 /*
182  * Information error codes
183  */
184 #define	INFO_OKAY	0
185 #define	INFO_ERR_IMPL	1	/* incompatable implementation */
186 #define	INFO_ERR_REQ	2	/* unknown request code */
187 #define	INFO_ERR_FMT	3	/* format error */
188 #define	INFO_ERR_NODATA	4	/* no data for this request */
189 #define	INFO_ERR_AUTH	7	/* authentication failure */
190 
191 /*
192  * Maximum sequence number.
193  */
194 #define	MAXSEQ	127
195 
196 
197 /*
198  * Bit setting macros for multifield items.
199  */
200 #define	RESP_BIT	0x80
201 #define	MORE_BIT	0x40
202 
203 #define	ISRESPONSE(rm_vn_mode)	(((rm_vn_mode)&RESP_BIT)!=0)
204 #define	ISMORE(rm_vn_mode)	(((rm_vn_mode)&MORE_BIT)!=0)
205 #define INFO_VERSION(rm_vn_mode) ((u_char)(((rm_vn_mode)>>3)&0x7))
206 #define	INFO_MODE(rm_vn_mode)	((rm_vn_mode)&0x7)
207 
208 #define	RM_VN_MODE(resp, more, version)		\
209 				((u_char)(((resp)?RESP_BIT:0)\
210 				|((more)?MORE_BIT:0)\
211 				|((version?version:(NTP_OLDVERSION+1))<<3)\
212 				|(MODE_PRIVATE)))
213 
214 #define	INFO_IS_AUTH(auth_seq)	(((auth_seq) & 0x80) != 0)
215 #define	INFO_SEQ(auth_seq)	((auth_seq)&0x7f)
216 #define	AUTH_SEQ(auth, seq)	((u_char)((((auth)!=0)?0x80:0)|((seq)&0x7f)))
217 
218 #define	INFO_ERR(err_nitems)	((u_short)((ntohs(err_nitems)>>12)&0xf))
219 #define	INFO_NITEMS(err_nitems)	((u_short)(ntohs(err_nitems)&0xfff))
220 #define	ERR_NITEMS(err, nitems)	(htons((u_short)((((u_short)(err)<<12)&0xf000)\
221 				|((u_short)(nitems)&0xfff))))
222 
223 #define	INFO_MBZ(mbz_itemsize)	((ntohs(mbz_itemsize)>>12)&0xf)
224 #define	INFO_ITEMSIZE(mbz_itemsize)	((u_short)(ntohs(mbz_itemsize)&0xfff))
225 #define	MBZ_ITEMSIZE(itemsize)	(htons((u_short)(itemsize)))
226 
227 
228 /*
229  * Implementation numbers.  One for universal use and one for ntpd.
230  */
231 #define	IMPL_UNIV	0
232 #define	IMPL_XNTPD_OLD	2	/* Used by pre ipv6 ntpdc */
233 #define	IMPL_XNTPD	3	/* Used by post ipv6 ntpdc */
234 
235 /*
236  * Some limits related to authentication.  Frames which are
237  * authenticated must include a time stamp which differs from
238  * the receive time stamp by no more than 10 seconds.
239  */
240 #define	INFO_TS_MAXSKEW	10.
241 
242 /*
243  * Universal request codes go here.  There aren't any.
244  */
245 
246 /*
247  * NTPD request codes go here.
248  */
249 #define	REQ_PEER_LIST		0	/* return list of peers */
250 #define	REQ_PEER_LIST_SUM	1	/* return summary info for all peers */
251 #define	REQ_PEER_INFO		2	/* get standard information on peer */
252 #define	REQ_PEER_STATS		3	/* get statistics for peer */
253 #define	REQ_SYS_INFO		4	/* get system information */
254 #define	REQ_SYS_STATS		5	/* get system stats */
255 #define	REQ_IO_STATS		6	/* get I/O stats */
256 #define REQ_MEM_STATS		7	/* stats related to peer list maint */
257 #define	REQ_LOOP_INFO		8	/* info from the loop filter */
258 #define	REQ_TIMER_STATS		9	/* get timer stats */
259 #define	REQ_CONFIG		10	/* configure a new peer */
260 #define	REQ_UNCONFIG		11	/* unconfigure an existing peer */
261 #define	REQ_SET_SYS_FLAG	12	/* set system flags */
262 #define	REQ_CLR_SYS_FLAG	13	/* clear system flags */
263 #define	REQ_MONITOR		14	/* (not used) */
264 #define	REQ_NOMONITOR		15	/* (not used) */
265 #define	REQ_GET_RESTRICT	16	/* return restrict list */
266 #define	REQ_RESADDFLAGS		17	/* add flags to restrict list */
267 #define	REQ_RESSUBFLAGS		18	/* remove flags from restrict list */
268 #define	REQ_UNRESTRICT		19	/* remove entry from restrict list */
269 #define	REQ_MON_GETLIST		20	/* return data collected by monitor */
270 #define	REQ_RESET_STATS		21	/* reset stat counters */
271 #define	REQ_RESET_PEER		22	/* reset peer stat counters */
272 #define	REQ_REREAD_KEYS		23	/* reread the encryption key file */
273 #define	REQ_DO_DIRTY_HACK	24	/* (not used) */
274 #define	REQ_DONT_DIRTY_HACK	25	/* (not used) */
275 #define	REQ_TRUSTKEY		26	/* add a trusted key */
276 #define	REQ_UNTRUSTKEY		27	/* remove a trusted key */
277 #define	REQ_AUTHINFO		28	/* return authentication info */
278 #define REQ_TRAPS		29	/* return currently set traps */
279 #define	REQ_ADD_TRAP		30	/* add a trap */
280 #define	REQ_CLR_TRAP		31	/* clear a trap */
281 #define	REQ_REQUEST_KEY		32	/* define a new request keyid */
282 #define	REQ_CONTROL_KEY		33	/* define a new control keyid */
283 #define	REQ_GET_CTLSTATS	34	/* get stats from the control module */
284 #define	REQ_GET_LEAPINFO	35	/* (not used) */
285 #define	REQ_GET_CLOCKINFO	36	/* get clock information */
286 #define	REQ_SET_CLKFUDGE	37	/* set clock fudge factors */
287 #define REQ_GET_KERNEL		38	/* get kernel pll/pps information */
288 #define	REQ_GET_CLKBUGINFO	39	/* get clock debugging info */
289 #define	REQ_SET_PRECISION	41	/* (not used) */
290 #define	REQ_MON_GETLIST_1	42	/* return collected v1 monitor data */
291 #define	REQ_HOSTNAME_ASSOCID	43	/* Here is a hostname + assoc_id */
292 #define REQ_IF_STATS		44	/* get interface statistics */
293 #define REQ_IF_RELOAD		45	/* reload interface list */
294 
295 /* Determine size of pre-v6 version of structures */
296 #define v4sizeof(type)		offsetof(type, v6_flag)
297 
298 /*
299  * Flags in the peer information returns
300  */
301 #define	INFO_FLAG_CONFIG	0x1
302 #define	INFO_FLAG_SYSPEER	0x2
303 #define INFO_FLAG_BURST		0x4
304 #define	INFO_FLAG_REFCLOCK	0x8
305 #define	INFO_FLAG_PREFER	0x10
306 #define	INFO_FLAG_AUTHENABLE	0x20
307 #define	INFO_FLAG_SEL_CANDIDATE	0x40
308 #define	INFO_FLAG_SHORTLIST	0x80
309 #define	INFO_FLAG_IBURST	0x100
310 
311 /*
312  * Flags in the system information returns
313  */
314 #define INFO_FLAG_BCLIENT	0x1
315 #define INFO_FLAG_AUTHENTICATE	0x2
316 #define INFO_FLAG_NTP		0x4
317 #define INFO_FLAG_KERNEL	0x8
318 #define INFO_FLAG_MONITOR	0x40
319 #define INFO_FLAG_FILEGEN	0x80
320 #define INFO_FLAG_CAL		0x10
321 #define INFO_FLAG_PPS_SYNC	0x20
322 
323 /*
324  * Peer list structure.  Used to return raw lists of peers.  It goes
325  * without saying that everything returned is in network byte order.
326  * Well, it *would* have gone without saying, but somebody said it.
327  */
328 struct info_peer_list {
329 	u_int32 addr;		/* address of peer */
330 	u_short port;		/* port number of peer */
331 	u_char hmode;		/* mode for this peer */
332 	u_char flags;		/* flags (from above) */
333 	u_int v6_flag;		/* is this v6 or not */
334 	u_int unused1;		/* (unused) padding for addr6 */
335 	struct in6_addr addr6;	/* v6 address of peer */
336 };
337 
338 
339 /*
340  * Peer summary structure.  Sort of the info that ntpdc returns by default.
341  */
342 struct info_peer_summary {
343 	u_int32 dstadr;		/* local address (zero for undetermined) */
344 	u_int32 srcadr;		/* source address */
345 	u_short srcport;	/* source port */
346 	u_char stratum;		/* stratum of peer */
347 	s_char hpoll;		/* host polling interval */
348 	s_char ppoll;		/* peer polling interval */
349 	u_char reach;		/* reachability register */
350 	u_char flags;		/* flags, from above */
351 	u_char hmode;		/* peer mode */
352 	s_fp delay;		/* peer.estdelay */
353 	l_fp offset;		/* peer.estoffset */
354 	u_fp dispersion;	/* peer.estdisp */
355 	u_int v6_flag;			/* is this v6 or not */
356 	u_int unused1;			/* (unused) padding for dstadr6 */
357 	struct in6_addr dstadr6;	/* local address (v6) */
358 	struct in6_addr srcadr6;	/* source address (v6) */
359 };
360 
361 
362 /*
363  * Peer information structure.
364  */
365 struct info_peer {
366 	u_int32 dstadr;		/* local address */
367 	u_int32	srcadr;		/* source address */
368 	u_short srcport;	/* remote port */
369 	u_char flags;		/* peer flags */
370 	u_char leap;		/* peer.leap */
371 	u_char hmode;		/* peer.hmode */
372 	u_char pmode;		/* peer.pmode */
373 	u_char stratum;		/* peer.stratum */
374 	u_char ppoll;		/* peer.ppoll */
375 	u_char hpoll;		/* peer.hpoll */
376 	s_char precision;	/* peer.precision */
377 	u_char version;		/* peer.version */
378 	u_char unused8;
379 	u_char reach;		/* peer.reach */
380 	u_char unreach;		/* peer.unreach */
381 	u_char flash;		/* old peer.flash */
382 	u_char ttl;		/* peer.ttl */
383 	u_short flash2;		/* new peer.flash */
384 	associd_t associd;	/* association ID */
385 	keyid_t keyid;		/* peer.keyid */
386 	u_int32 pkeyid;		/* unused */
387 	u_int32 refid;		/* peer.refid */
388 	u_int32 timer;		/* peer.timer */
389 	s_fp rootdelay;		/* peer.delay */
390 	u_fp rootdispersion;	/* peer.dispersion */
391 	l_fp reftime;		/* peer.reftime */
392 	l_fp org;		/* peer.org */
393 	l_fp rec;		/* peer.rec */
394 	l_fp xmt;		/* peer.xmt */
395 	s_fp filtdelay[NTP_SHIFT];	/* delay shift register */
396 	l_fp filtoffset[NTP_SHIFT];	/* offset shift register */
397 	u_char order[NTP_SHIFT];	/* order of peers from last filter */
398 	s_fp delay;		/* peer.estdelay */
399 	u_fp dispersion;	/* peer.estdisp */
400 	l_fp offset;		/* peer.estoffset */
401 	u_fp selectdisp;	/* peer select dispersion */
402 	int32 unused1;		/* (obsolete) */
403 	int32 unused2;
404 	int32 unused3;
405 	int32 unused4;
406 	int32 unused5;
407 	int32 unused6;
408 	int32 unused7;
409 	s_fp estbdelay;		/* broadcast offset */
410 	u_int v6_flag;			/* is this v6 or not */
411 	u_int unused9;			/* (unused) padding for dstadr6 */
412 	struct in6_addr dstadr6; 	/* local address (v6-like) */
413 	struct in6_addr srcadr6; 	/* sources address (v6-like) */
414 };
415 
416 
417 /*
418  * Peer statistics structure
419  */
420 struct info_peer_stats {
421 	u_int32 dstadr;		/* local address */
422 	u_int32 srcadr;		/* remote address */
423 	u_short srcport;	/* remote port */
424 	u_short flags;		/* peer flags */
425 	u_int32 timereset;	/* time counters were reset */
426 	u_int32 timereceived;	/* time since a packet received */
427 	u_int32 timetosend;	/* time until a packet sent */
428 	u_int32 timereachable;	/* time peer has been reachable */
429 	u_int32 sent;		/* number sent */
430 	u_int32 unused1;	/* (unused) */
431 	u_int32 processed;	/* number processed */
432 	u_int32 unused2;	/* (unused) */
433 	u_int32 badauth;	/* bad authentication */
434 	u_int32 bogusorg;	/* bogus origin */
435 	u_int32 oldpkt;		/* duplicate */
436 	u_int32 unused3;	/* (unused) */
437 	u_int32 unused4;	/* (unused) */
438 	u_int32 seldisp;	/* bad dispersion */
439 	u_int32 selbroken;	/* bad reference time */
440 	u_int32 unused5;	/* (unused) */
441 	u_char candidate;	/* select order */
442 	u_char unused6;		/* (unused) */
443 	u_char unused7;		/* (unused) */
444 	u_char unused8;		/* (unused) */
445 	u_int v6_flag;			/* is this v6 or not */
446 	u_int unused9;			/* (unused) padding for dstadr6 */
447 	struct in6_addr dstadr6;	/* local address */
448 	struct in6_addr srcadr6;	/* remote address */
449 };
450 
451 
452 /*
453  * Loop filter variables
454  */
455 struct info_loop {
456 	l_fp last_offset;
457 	l_fp drift_comp;
458 	u_int32 compliance;
459 	u_int32 watchdog_timer;
460 };
461 
462 
463 /*
464  * System info.  Mostly the sys.* variables, plus a few unique to
465  * the implementation.
466  */
467 struct info_sys {
468 	u_int32 peer;		/* system peer address (v4) */
469 	u_char peer_mode;	/* mode we are syncing to peer in */
470 	u_char leap;		/* system leap bits */
471 	u_char stratum;		/* our stratum */
472 	s_char precision;	/* local clock precision */
473 	s_fp rootdelay;		/* delay from sync source */
474 	u_fp rootdispersion;	/* dispersion from sync source */
475 	u_int32 refid;		/* reference ID of sync source */
476 	l_fp reftime;		/* system reference time */
477 	u_int32 poll;		/* system poll interval */
478 	u_char flags;		/* system flags */
479 	u_char unused1;		/* unused */
480 	u_char unused2;		/* unused */
481 	u_char unused3;		/* unused */
482 	s_fp bdelay;		/* default broadcast offset */
483 	s_fp frequency;		/* frequency residual (scaled ppm)  */
484 	l_fp authdelay;		/* default authentication delay */
485 	u_fp stability;		/* clock stability (scaled ppm) */
486 	u_int v6_flag;		/* is this v6 or not */
487 	u_int unused4;		/* unused, padding for peer6 */
488 	struct in6_addr peer6;	/* system peer address (v6) */
489 };
490 
491 
492 /*
493  * System stats.  These are collected in the protocol module
494  */
495 struct info_sys_stats {
496 	u_int32 timeup;		/* time since restart */
497 	u_int32 timereset;	/* time since reset */
498 	u_int32 denied;		/* access denied */
499 	u_int32 oldversionpkt;	/* recent version */
500 	u_int32 newversionpkt;	/* current version */
501 	u_int32 unknownversion;	/* bad version */
502 	u_int32 badlength;	/* bad length or format */
503 	u_int32 processed;	/* packets processed */
504 	u_int32 badauth;	/* bad authentication */
505 	u_int32 received;	/* packets received */
506 	u_int32 limitrejected;	/* rate exceeded */
507 };
508 
509 
510 /*
511  * System stats - old version
512  */
513 struct old_info_sys_stats {
514 	u_int32 timeup;		/* time since restart */
515 	u_int32 timereset;	/* time since reset */
516 	u_int32 denied;		/* access denied */
517 	u_int32 oldversionpkt;	/* recent version */
518 	u_int32 newversionpkt;	/* current version */
519 	u_int32 unknownversion;	/* bad version */
520 	u_int32 badlength;	/* bad length or format */
521 	u_int32 processed;	/* packets processed */
522 	u_int32 badauth;	/* bad authentication */
523 	u_int32 wanderhold;	/* (not used) */
524 };
525 
526 
527 /*
528  * Peer memory statistics.  Collected in the peer module.
529  */
530 struct info_mem_stats {
531 	u_int32 timereset;	/* time since reset */
532 	u_short totalpeermem;
533 	u_short freepeermem;
534 	u_int32 findpeer_calls;
535 	u_int32 allocations;
536 	u_int32 demobilizations;
537 	u_char hashcount[NTP_HASH_SIZE];
538 };
539 
540 
541 /*
542  * I/O statistics.  Collected in the I/O module
543  */
544 struct info_io_stats {
545 	u_int32 timereset;	/* time since reset */
546 	u_short totalrecvbufs;	/* total receive bufs */
547 	u_short freerecvbufs;	/* free buffers */
548 	u_short fullrecvbufs;	/* full buffers */
549 	u_short lowwater;	/* number of times we've added buffers */
550 	u_int32 dropped;	/* dropped packets */
551 	u_int32 ignored;	/* ignored packets */
552 	u_int32 received;	/* received packets */
553 	u_int32 sent;		/* packets sent */
554 	u_int32 notsent;	/* packets not sent */
555 	u_int32 interrupts;	/* interrupts we've handled */
556 	u_int32 int_received;	/* received by interrupt handler */
557 };
558 
559 
560 /*
561  * Timer stats.  Guess where from.
562  */
563 struct info_timer_stats {
564 	u_int32 timereset;	/* time since reset */
565 	u_int32 alarms;		/* alarms we've handled */
566 	u_int32 overflows;	/* timer overflows */
567 	u_int32 xmtcalls;	/* calls to xmit */
568 };
569 
570 
571 /*
572  * Structure for passing peer configuration information
573  */
574 struct old_conf_peer {
575 	u_int32 peeraddr;	/* address to poll */
576 	u_char hmode;		/* mode, either broadcast, active or client */
577 	u_char version;		/* version number to poll with */
578 	u_char minpoll;		/* min host poll interval */
579 	u_char maxpoll;		/* max host poll interval */
580 	u_char flags;		/* flags for this request */
581 	u_char ttl;		/* time to live (multicast) or refclock mode */
582 	u_short unused;		/* unused */
583 	keyid_t keyid;		/* key to use for this association */
584 };
585 
586 struct conf_peer {
587 	u_int32 peeraddr;	/* address to poll */
588 	u_char hmode;		/* mode, either broadcast, active or client */
589 	u_char version;		/* version number to poll with */
590 	u_char minpoll;		/* min host poll interval */
591 	u_char maxpoll;		/* max host poll interval */
592 	u_char flags;		/* flags for this request */
593 	u_char ttl;		/* time to live (multicast) or refclock mode */
594 	u_short unused1;	/* unused */
595 	keyid_t keyid;		/* key to use for this association */
596 	char keystr[MAXFILENAME]; /* public key file name*/
597 	u_int v6_flag;		/* is this v6 or not */
598 	u_int unused2;			/* unused, padding for peeraddr6 */
599 	struct in6_addr peeraddr6;	/* ipv6 address to poll */
600 };
601 
602 #define	CONF_FLAG_AUTHENABLE	0x01
603 #define CONF_FLAG_PREFER	0x02
604 #define CONF_FLAG_BURST		0x04
605 #define CONF_FLAG_IBURST	0x08
606 #define CONF_FLAG_NOSELECT	0x10
607 #define CONF_FLAG_SKEY		0x20
608 
609 /*
610  * Structure for passing peer deletion information.  Currently
611  * we only pass the address and delete all configured peers with
612  * this addess.
613  */
614 struct conf_unpeer {
615 	u_int32 peeraddr;		/* address of peer */
616 	u_int v6_flag;			/* is this v6 or not */
617 	struct in6_addr peeraddr6;	/* address of peer (v6) */
618 };
619 
620 /*
621  * Structure for carrying system flags.
622  */
623 struct conf_sys_flags {
624 	u_int32 flags;
625 };
626 
627 /*
628  * System flags we can set/clear
629  */
630 #define	SYS_FLAG_BCLIENT	0x01
631 #define	SYS_FLAG_PPS		0x02
632 #define SYS_FLAG_NTP		0x04
633 #define SYS_FLAG_KERNEL		0x08
634 #define SYS_FLAG_MONITOR	0x10
635 #define SYS_FLAG_FILEGEN	0x20
636 #define SYS_FLAG_AUTH		0x40
637 #define SYS_FLAG_CAL		0x80
638 
639 /*
640  * Structure used for returning restrict entries
641  */
642 struct info_restrict {
643 	u_int32 addr;		/* match address */
644 	u_int32 mask;		/* match mask */
645 	u_int32 count;		/* number of packets matched */
646 	u_short flags;		/* restrict flags */
647 	u_short mflags;		/* match flags */
648 	u_int v6_flag;		/* is this v6 or not */
649 	u_int unused1;		/* unused, padding for addr6 */
650 	struct in6_addr addr6;	/* match address (v6) */
651 	struct in6_addr mask6; 	/* match mask (v6) */
652 };
653 
654 
655 /*
656  * Structure used for specifying restrict entries
657  */
658 struct conf_restrict {
659 	u_int32	addr;		/* match address */
660 	u_int32 mask;		/* match mask */
661 	u_short flags;		/* restrict flags */
662 	u_short mflags;		/* match flags */
663 	u_int v6_flag;		/* is this v6 or not */
664 	struct in6_addr addr6; 	/* match address (v6) */
665 	struct in6_addr mask6; 	/* match mask (v6) */
666 };
667 
668 
669 /*
670  * Structure used for returning monitor data
671  */
672 struct info_monitor_1 {
673 	u_int32 lasttime;	/* last packet from this host */
674 	u_int32 firsttime;	/* first time we received a packet */
675 	u_int32 restr;		/* restrict bits (was named lastdrop) */
676 	u_int32 count;		/* count of packets received */
677 	u_int32 addr;		/* host address V4 style */
678 	u_int32 daddr;		/* destination host address */
679 	u_int32 flags;		/* flags about destination */
680 	u_short port;		/* port number of last reception */
681 	u_char mode;		/* mode of last packet */
682 	u_char version;		/* version number of last packet */
683 	u_int v6_flag;		/* is this v6 or not */
684 	u_int unused1;		/* unused, padding for addr6 */
685 	struct in6_addr addr6;	/* host address V6 style */
686 	struct in6_addr daddr6;	/* host address V6 style */
687 };
688 
689 
690 /*
691  * Structure used for returning monitor data
692  */
693 struct info_monitor {
694 	u_int32 lasttime;	/* last packet from this host */
695 	u_int32 firsttime;	/* first time we received a packet */
696 	u_int32 restr;		/* restrict bits (was named lastdrop) */
697 	u_int32 count;		/* count of packets received */
698 	u_int32 addr;		/* host address */
699 	u_short port;		/* port number of last reception */
700 	u_char mode;		/* mode of last packet */
701 	u_char version;		/* version number of last packet */
702 	u_int v6_flag;		/* is this v6 or not */
703 	u_int unused1;		/* unused, padding for addr6 */
704 	struct in6_addr addr6;	/* host v6 address */
705 };
706 
707 /*
708  * Structure used for returning monitor data (old format)
709  */
710 struct old_info_monitor {
711 	u_int32 lasttime;	/* last packet from this host */
712 	u_int32 firsttime;	/* first time we received a packet */
713 	u_int32 count;		/* count of packets received */
714 	u_int32 addr;		/* host address */
715 	u_short port;		/* port number of last reception */
716 	u_char mode;		/* mode of last packet */
717 	u_char version;		/* version number of last packet */
718 	u_int v6_flag;		/* is this v6 or not */
719 	struct in6_addr addr6;	/* host address  (v6)*/
720 };
721 
722 /*
723  * Structure used for passing indication of flags to clear
724  */
725 struct reset_flags {
726 	u_int32 flags;
727 };
728 
729 #define	RESET_FLAG_ALLPEERS	0x01
730 #define	RESET_FLAG_IO		0x02
731 #define	RESET_FLAG_SYS		0x04
732 #define	RESET_FLAG_MEM		0x08
733 #define	RESET_FLAG_TIMER	0x10
734 #define	RESET_FLAG_AUTH		0x20
735 #define	RESET_FLAG_CTL		0x40
736 
737 #define	RESET_ALLFLAGS \
738 	(RESET_FLAG_ALLPEERS|RESET_FLAG_IO|RESET_FLAG_SYS \
739 	|RESET_FLAG_MEM|RESET_FLAG_TIMER|RESET_FLAG_AUTH|RESET_FLAG_CTL)
740 
741 /*
742  * Structure used to return information concerning the authentication
743  * module.
744  */
745 struct info_auth {
746 	u_int32 timereset;	/* time counters were reset */
747 	u_int32 numkeys;	/* number of keys we know */
748 	u_int32 numfreekeys;	/* number of free keys */
749 	u_int32 keylookups;	/* calls to authhavekey() */
750 	u_int32 keynotfound;	/* requested key unknown */
751 	u_int32 encryptions;	/* number of encryptions */
752 	u_int32 decryptions;	/* number of decryptions */
753 	u_int32 expired;	/* number of expired keys */
754 	u_int32 keyuncached;	/* calls to encrypt/decrypt with uncached key */
755 };
756 
757 
758 /*
759  * Structure used to pass trap information to the client
760  */
761 struct info_trap {
762 	u_int32 local_address;	/* local interface addres (v4) */
763 	u_int32 trap_address;	/* remote client's addres (v4) */
764 	u_short trap_port;	/* remote port number */
765 	u_short sequence;	/* sequence number */
766 	u_int32 settime;	/* time trap last set */
767 	u_int32 origtime;	/* time trap originally set */
768 	u_int32 resets;		/* number of resets on this trap */
769 	u_int32 flags;		/* trap flags, as defined in ntp_control.h */
770 	u_int v6_flag;			/* is this v6 or not */
771 	struct in6_addr local_address6;	/* local interface address (v6) */
772 	struct in6_addr trap_address6;	/* remote client's address (v6) */
773 };
774 
775 /*
776  * Structure used to pass add/clear trap information to the client
777  */
778 struct conf_trap {
779 	u_int32 local_address;	/* remote client's address */
780 	u_int32 trap_address;	/* local interface address */
781 	u_short trap_port;	/* remote client's port */
782 	u_short unused;		/* (unused) */
783 	u_int v6_flag;			/* is this v6 or not */
784 	struct in6_addr local_address6;	/* local interface address (v6) */
785 	struct in6_addr trap_address6;	/* remote client's address (v6) */
786 };
787 
788 
789 /*
790  * Structure used to return statistics from the control module
791  */
792 struct info_control {
793 	u_int32 ctltimereset;
794 	u_int32 numctlreq;	/* number of requests we've received */
795 	u_int32 numctlbadpkts;	/* number of bad control packets */
796 	u_int32 numctlresponses;	/* # resp packets sent */
797 	u_int32 numctlfrags;	/* # of fragments sent */
798 	u_int32 numctlerrors;	/* number of error responses sent */
799 	u_int32 numctltooshort;	/* number of too short input packets */
800 	u_int32 numctlinputresp;	/* number of responses on input */
801 	u_int32 numctlinputfrag;	/* number of fragments on input */
802 	u_int32 numctlinputerr;	/* # input pkts with err bit set */
803 	u_int32 numctlbadoffset;	/* # input pkts with nonzero offset */
804 	u_int32 numctlbadversion;	/* # input pkts with unknown version */
805 	u_int32 numctldatatooshort;	/* data too short for count */
806 	u_int32 numctlbadop;	/* bad op code found in packet */
807 	u_int32 numasyncmsgs;		/* # async messages we've sent */
808 };
809 
810 
811 /*
812  * Structure used to return clock information
813  */
814 struct info_clock {
815 	u_int32 clockadr;
816 	u_char type;
817 	u_char flags;
818 	u_char lastevent;
819 	u_char currentstatus;
820 	u_int32 polls;
821 	u_int32 noresponse;
822 	u_int32 badformat;
823 	u_int32 baddata;
824 	u_int32 timestarted;
825 	l_fp fudgetime1;
826 	l_fp fudgetime2;
827 	int32 fudgeval1;
828 	int32 fudgeval2;
829 };
830 
831 
832 /*
833  * Structure used for setting clock fudge factors
834  */
835 struct conf_fudge {
836 	u_int32 clockadr;
837 	u_int32 which;
838 	l_fp fudgetime;
839 	int32 fudgeval_flags;
840 };
841 
842 #define	FUDGE_TIME1	1
843 #define	FUDGE_TIME2	2
844 #define	FUDGE_VAL1	3
845 #define	FUDGE_VAL2	4
846 #define	FUDGE_FLAGS	5
847 
848 
849 /*
850  * Structure used for returning clock debugging info
851  */
852 #define	NUMCBUGVALUES	16
853 #define	NUMCBUGTIMES	32
854 
855 struct info_clkbug {
856 	u_int32 clockadr;
857 	u_char nvalues;
858 	u_char ntimes;
859 	u_short svalues;
860 	u_int32 stimes;
861 	u_int32 values[NUMCBUGVALUES];
862 	l_fp times[NUMCBUGTIMES];
863 };
864 
865 /*
866  * Structure used for returning kernel pll/PPS information
867  */
868 struct info_kernel {
869 	int32 offset;
870 	int32 freq;
871 	int32 maxerror;
872 	int32 esterror;
873 	u_short status;
874 	u_short shift;
875 	int32 constant;
876 	int32 precision;
877 	int32 tolerance;
878 
879 /*
880  * Variables used only if PPS signal discipline is implemented
881  */
882 	int32 ppsfreq;
883 	int32 jitter;
884 	int32 stabil;
885 	int32 jitcnt;
886 	int32 calcnt;
887 	int32 errcnt;
888 	int32 stbcnt;
889 };
890 
891 /*
892  * interface statistics
893  */
894 struct info_if_stats {
895 	union addrun unaddr;            /* address */
896         union addrun unbcast;	        /* broadcast */
897 	union addrun unmask;	        /* mask */
898 	u_int32 v6_flag;                /* is this v6 */
899 	char name[32];			/* name of interface */
900 	int32 flags;			/* interface flags */
901 	int32 last_ttl;			/* last TTL specified */
902 	int32 num_mcast;		/* No. of IP addresses in multicast socket */
903         int32 received;	                /* number of incoming packets */
904 	int32 sent;			/* number of outgoing packets */
905 	int32 notsent;			/* number of send failures */
906 	int32 uptime;		        /* number of seconds this interface was active */
907 	u_int32 scopeid;		/* Scope used for Multicasting */
908 	u_int32 ifindex;		/* interface index - from system */
909 	u_int32 ifnum;		        /* sequential interface number */
910         u_int32 peercnt;		/* number of peers referencinf this interface - informational only */
911 	u_short family;			/* Address family */
912 	u_char ignore_packets;	        /* Specify whether the packet should be ignored */
913         u_char action;		        /* reason the item is listed */
914 	int32 _filler0;		        /* pad to a 64 bit size boundary */
915 };
916 
917 #define IFS_EXISTS	1	/* just exists */
918 #define IFS_CREATED	2	/* was just created */
919 #define IFS_DELETED	3	/* was just delete */
920 
921 /*
922  * Info returned with IP -> hostname lookup
923  */
924 /* 144 might need to become 32, matching data[] member of req_pkt */
925 #define NTP_MAXHOSTNAME (32 - sizeof(u_int32) - sizeof(u_short))
926 struct info_dns_assoc {
927 	u_int32 peeraddr;	/* peer address (HMS: being careful...) */
928 	associd_t associd;	/* association ID */
929 	char hostname[NTP_MAXHOSTNAME];	/* hostname */
930 };
931 
932 /*
933  * function declarations
934  */
935 int get_packet_mode(struct recvbuf *rbufp); /* Return packet mode */
936 
937 #endif /* NTP_REQUEST_H */
938