Home | History | Annotate | Line # | Download | only in include
      1 /*	$NetBSD: ntp_request.h,v 1.9 2020/05/25 20:47:19 christos 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 - incompatible 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 	struct in6_addr addr6;
    123 	struct in_addr  addr;
    124 };
    125 
    126 #define	MODE7_PAYLOAD_LIM	176
    127 
    128 typedef union req_data_u_tag {
    129 	u_int32	u32[MODE7_PAYLOAD_LIM / sizeof(u_int32)];
    130 	char data[MODE7_PAYLOAD_LIM];	/* data area (176 byte max) */
    131 } req_data_u;				/* struct conf_peer must fit */
    132 
    133 /*
    134  * Structure for carrying system flags.
    135  */
    136 struct conf_sys_flags {
    137 	u_int32 flags;
    138 };
    139 
    140 /*
    141  * System flags we can set/clear
    142  */
    143 #define	SYS_FLAG_BCLIENT	0x01
    144 #define	SYS_FLAG_PPS		0x02
    145 #define SYS_FLAG_NTP		0x04
    146 #define SYS_FLAG_KERNEL		0x08
    147 #define SYS_FLAG_MONITOR	0x10
    148 #define SYS_FLAG_FILEGEN	0x20
    149 #define SYS_FLAG_AUTH		0x40
    150 #define SYS_FLAG_CAL		0x80
    151 
    152 /*
    153  * A request packet.  These are almost a fixed length.
    154  */
    155 struct req_pkt {
    156 	u_char rm_vn_mode;		/* response, more, version, mode */
    157 	u_char auth_seq;		/* key, sequence number */
    158 	u_char implementation;		/* implementation number */
    159 	u_char request;			/* request number */
    160 	u_short err_nitems;		/* error code/number of data items */
    161 	u_short mbz_itemsize;		/* item size */
    162 	req_data_u u;			/* data area */
    163 	l_fp tstamp;			/* time stamp, for authentication */
    164 	keyid_t keyid;			/* (optional) encryption key */
    165 	char mac[MAX_MDG_LEN];		/* (optional) auth code */
    166 };
    167 
    168 /*
    169  * The req_pkt_tail structure is used by ntpd to adjust for different
    170  * packet sizes that may arrive.
    171  */
    172 struct req_pkt_tail {
    173 	l_fp tstamp;			/* time stamp, for authentication */
    174 	keyid_t keyid;			/* (optional) encryption key */
    175 	char mac[MAX_MDG_LEN];		/* (optional) auth code */
    176 };
    177 
    178 /* MODE_PRIVATE request packet header length before optional items. */
    179 #define	REQ_LEN_HDR	(offsetof(struct req_pkt, u))
    180 /* MODE_PRIVATE request packet fixed length without MAC. */
    181 #define	REQ_LEN_NOMAC	(offsetof(struct req_pkt, keyid))
    182 /* MODE_PRIVATE req_pkt_tail minimum size (16 octet digest) */
    183 #define REQ_TAIL_MIN	\
    184 	(sizeof(struct req_pkt_tail) - (MAX_MAC_LEN - MAX_MD5_LEN))
    185 
    186 /*
    187  * A MODE_PRIVATE response packet.  The length here is variable, this
    188  * is a maximally sized one.  Note that this implementation doesn't
    189  * authenticate responses.
    190  */
    191 #define	RESP_HEADER_SIZE	(offsetof(struct resp_pkt, u))
    192 #define	RESP_DATA_SIZE		500
    193 
    194 typedef union resp_pkt_u_tag {
    195 	char data[RESP_DATA_SIZE];
    196 	u_int32 u32[RESP_DATA_SIZE / sizeof(u_int32)];
    197 } resp_pkt_u;
    198 
    199 struct resp_pkt {
    200 	u_char rm_vn_mode;		/* response, more, version, mode */
    201 	u_char auth_seq;		/* key, sequence number */
    202 	u_char implementation;		/* implementation number */
    203 	u_char request;			/* request number */
    204 	u_short err_nitems;		/* error code/number of data items */
    205 	u_short mbz_itemsize;		/* item size */
    206 	resp_pkt_u u;			/* data area */
    207 };
    208 
    209 
    210 /*
    211  * Information error codes
    212  */
    213 #define	INFO_OKAY	0
    214 #define	INFO_ERR_IMPL	1	/* incompatible implementation */
    215 #define	INFO_ERR_REQ	2	/* unknown request code */
    216 #define	INFO_ERR_FMT	3	/* format error */
    217 #define	INFO_ERR_NODATA	4	/* no data for this request */
    218 #define	INFO_ERR_AUTH	7	/* authentication failure */
    219 #define	MAX_INFO_ERR	INFO_ERR_AUTH
    220 
    221 /*
    222  * Maximum sequence number.
    223  */
    224 #define	MAXSEQ	127
    225 
    226 
    227 /*
    228  * Bit setting macros for multifield items.
    229  */
    230 #define	RESP_BIT	0x80
    231 #define	MORE_BIT	0x40
    232 
    233 #define	ISRESPONSE(rm_vn_mode)	(((rm_vn_mode)&RESP_BIT)!=0)
    234 #define	ISMORE(rm_vn_mode)	(((rm_vn_mode)&MORE_BIT)!=0)
    235 #define INFO_VERSION(rm_vn_mode) ((u_char)(((rm_vn_mode)>>3)&0x7))
    236 #define	INFO_MODE(rm_vn_mode)	((rm_vn_mode)&0x7)
    237 
    238 #define	RM_VN_MODE(resp, more, version)		\
    239 				((u_char)(((resp)?RESP_BIT:0)\
    240 				|((more)?MORE_BIT:0)\
    241 				|((version?version:(NTP_OLDVERSION+1))<<3)\
    242 				|(MODE_PRIVATE)))
    243 
    244 #define	INFO_IS_AUTH(auth_seq)	(((auth_seq) & 0x80) != 0)
    245 #define	INFO_SEQ(auth_seq)	((auth_seq)&0x7f)
    246 #define	AUTH_SEQ(auth, seq)	((u_char)((((auth)!=0)?0x80:0)|((seq)&0x7f)))
    247 
    248 #define	INFO_ERR(err_nitems)	((u_short)((ntohs(err_nitems)>>12)&0xf))
    249 #define	INFO_NITEMS(err_nitems)	((u_short)(ntohs(err_nitems)&0xfff))
    250 #define _ERR_EN(err)		((u_short)(((err)&0xf)<<12))
    251 #define	ERR_NITEMS(err, nitems)	((u_short)htons(_ERR_EN(err)|(nitems&0xfff)))
    252 
    253 #define	INFO_MBZ(mbz_itemsize)	((ntohs(mbz_itemsize)>>12)&0xf)
    254 #define	INFO_ITEMSIZE(mbz_itemsize)	((u_short)(ntohs(mbz_itemsize)&0xfff))
    255 #define	MBZ_ITEMSIZE(itemsize)	(htons((u_short)(itemsize)))
    256 
    257 
    258 /*
    259  * Implementation numbers.  One for universal use and one for ntpd.
    260  */
    261 #define	IMPL_UNIV	0
    262 #define	IMPL_XNTPD_OLD	2	/* Used by pre ipv6 ntpdc */
    263 #define	IMPL_XNTPD	3	/* Used by post ipv6 ntpdc */
    264 
    265 /*
    266  * Some limits related to authentication.  Frames which are
    267  * authenticated must include a time stamp which differs from
    268  * the receive time stamp by no more than 10 seconds.
    269  */
    270 #define	INFO_TS_MAXSKEW	10.
    271 
    272 /*
    273  * Universal request codes go here.  There aren't any.
    274  */
    275 
    276 /*
    277  * ntpdc -> ntpd request codes go here.
    278  */
    279 #define	REQ_PEER_LIST		0	/* return list of peers */
    280 #define	REQ_PEER_LIST_SUM	1	/* return summary info for all peers */
    281 #define	REQ_PEER_INFO		2	/* get standard information on peer */
    282 #define	REQ_PEER_STATS		3	/* get statistics for peer */
    283 #define	REQ_SYS_INFO		4	/* get system information */
    284 #define	REQ_SYS_STATS		5	/* get system stats */
    285 #define	REQ_IO_STATS		6	/* get I/O stats */
    286 #define REQ_MEM_STATS		7	/* stats related to peer list maint */
    287 #define	REQ_LOOP_INFO		8	/* info from the loop filter */
    288 #define	REQ_TIMER_STATS		9	/* get timer stats */
    289 #define	REQ_CONFIG		10	/* configure a new peer */
    290 #define	REQ_UNCONFIG		11	/* unconfigure an existing peer */
    291 #define	REQ_SET_SYS_FLAG	12	/* set system flags */
    292 #define	REQ_CLR_SYS_FLAG	13	/* clear system flags */
    293 #define	REQ_MONITOR		14	/* (not used) */
    294 #define	REQ_NOMONITOR		15	/* (not used) */
    295 #define	REQ_GET_RESTRICT	16	/* return restrict list */
    296 #define	REQ_RESADDFLAGS		17	/* add flags to restrict list */
    297 #define	REQ_RESSUBFLAGS		18	/* remove flags from restrict list */
    298 #define	REQ_UNRESTRICT		19	/* remove entry from restrict list */
    299 #define	REQ_MON_GETLIST		20	/* return data collected by monitor */
    300 #define	REQ_RESET_STATS		21	/* reset stat counters */
    301 #define	REQ_RESET_PEER		22	/* reset peer stat counters */
    302 #define	REQ_REREAD_KEYS		23	/* reread the encryption key file */
    303 #define	REQ_DO_DIRTY_HACK	24	/* (not used) */
    304 #define	REQ_DONT_DIRTY_HACK	25	/* (not used) */
    305 #define	REQ_TRUSTKEY		26	/* add a trusted key */
    306 #define	REQ_UNTRUSTKEY		27	/* remove a trusted key */
    307 #define	REQ_AUTHINFO		28	/* return authentication info */
    308 #define REQ_TRAPS		29	/* return currently set traps */
    309 #define	REQ_ADD_TRAP		30	/* add a trap */
    310 #define	REQ_CLR_TRAP		31	/* clear a trap */
    311 #define	REQ_REQUEST_KEY		32	/* define a new request keyid */
    312 #define	REQ_CONTROL_KEY		33	/* define a new control keyid */
    313 #define	REQ_GET_CTLSTATS	34	/* get stats from the control module */
    314 #define	REQ_GET_LEAPINFO	35	/* (not used) */
    315 #define	REQ_GET_CLOCKINFO	36	/* get clock information */
    316 #define	REQ_SET_CLKFUDGE	37	/* set clock fudge factors */
    317 #define REQ_GET_KERNEL		38	/* get kernel pll/pps information */
    318 #define	REQ_GET_CLKBUGINFO	39	/* get clock debugging info */
    319 #define	REQ_SET_PRECISION	41	/* (not used) */
    320 #define	REQ_MON_GETLIST_1	42	/* return collected v1 monitor data */
    321 #define	REQ_HOSTNAME_ASSOCID	43	/* Here is a hostname + assoc_id */
    322 #define REQ_IF_STATS		44	/* get interface statistics */
    323 #define REQ_IF_RELOAD		45	/* reload interface list */
    324 
    325 /* Determine size of pre-v6 version of structures */
    326 #define v4sizeof(type)		offsetof(type, v6_flag)
    327 
    328 /*
    329  * Flags in the peer information returns
    330  */
    331 #define	INFO_FLAG_CONFIG	0x1
    332 #define	INFO_FLAG_SYSPEER	0x2
    333 #define INFO_FLAG_BURST		0x4
    334 #define	INFO_FLAG_REFCLOCK	0x8
    335 #define	INFO_FLAG_PREFER	0x10
    336 #define	INFO_FLAG_AUTHENABLE	0x20
    337 #define	INFO_FLAG_SEL_CANDIDATE	0x40
    338 #define	INFO_FLAG_SHORTLIST	0x80
    339 #define	INFO_FLAG_IBURST	0x100
    340 
    341 /*
    342  * Flags in the system information returns
    343  */
    344 #define INFO_FLAG_BCLIENT	0x1
    345 #define INFO_FLAG_AUTHENTICATE	0x2
    346 #define INFO_FLAG_NTP		0x4
    347 #define INFO_FLAG_KERNEL	0x8
    348 #define INFO_FLAG_MONITOR	0x40
    349 #define INFO_FLAG_FILEGEN	0x80
    350 #define INFO_FLAG_CAL		0x10
    351 #define INFO_FLAG_PPS_SYNC	0x20
    352 
    353 /*
    354  * Peer list structure.  Used to return raw lists of peers.  It goes
    355  * without saying that everything returned is in network byte order.
    356  * Well, it *would* have gone without saying, but somebody said it.
    357  */
    358 struct info_peer_list {
    359 	u_int32 addr;		/* address of peer */
    360 	u_short port;		/* port number of peer */
    361 	u_char hmode;		/* mode for this peer */
    362 	u_char flags;		/* flags (from above) */
    363 	u_int v6_flag;		/* is this v6 or not */
    364 	u_int unused1;		/* (unused) padding for addr6 */
    365 	struct in6_addr addr6;	/* v6 address of peer */
    366 };
    367 
    368 
    369 /*
    370  * Peer summary structure.  Sort of the info that ntpdc returns by default.
    371  */
    372 struct info_peer_summary {
    373 	u_int32 dstadr;		/* local address (zero for undetermined) */
    374 	u_int32 srcadr;		/* source address */
    375 	u_short srcport;	/* source port */
    376 	u_char stratum;		/* stratum of peer */
    377 	s_char hpoll;		/* host polling interval */
    378 	s_char ppoll;		/* peer polling interval */
    379 	u_char reach;		/* reachability register */
    380 	u_char flags;		/* flags, from above */
    381 	u_char hmode;		/* peer mode */
    382 	s_fp delay;		/* peer.estdelay */
    383 	l_fp offset;		/* peer.estoffset */
    384 	u_fp dispersion;	/* peer.estdisp */
    385 	u_int v6_flag;			/* is this v6 or not */
    386 	u_int unused1;			/* (unused) padding for dstadr6 */
    387 	struct in6_addr dstadr6;	/* local address (v6) */
    388 	struct in6_addr srcadr6;	/* source address (v6) */
    389 };
    390 
    391 
    392 /*
    393  * Peer information structure.
    394  */
    395 struct info_peer {
    396 	u_int32 dstadr;		/* local address */
    397 	u_int32	srcadr;		/* source address */
    398 	u_short srcport;	/* remote port */
    399 	u_char flags;		/* peer flags */
    400 	u_char leap;		/* peer.leap */
    401 	u_char hmode;		/* peer.hmode */
    402 	u_char pmode;		/* peer.pmode */
    403 	u_char stratum;		/* peer.stratum */
    404 	u_char ppoll;		/* peer.ppoll */
    405 	u_char hpoll;		/* peer.hpoll */
    406 	s_char precision;	/* peer.precision */
    407 	u_char version;		/* peer.version */
    408 	u_char unused8;
    409 	u_char reach;		/* peer.reach */
    410 	u_char unreach;		/* peer.unreach */
    411 	u_char flash;		/* old peer.flash */
    412 	u_char ttl;		/* peer.ttl */
    413 	u_short flash2;		/* new peer.flash */
    414 	associd_t associd;	/* association ID */
    415 	keyid_t keyid;		/* peer.keyid */
    416 	u_int32 pkeyid;		/* unused */
    417 	u_int32 refid;		/* peer.refid */
    418 	u_int32 timer;		/* peer.timer */
    419 	s_fp rootdelay;		/* peer.delay */
    420 	u_fp rootdispersion;	/* peer.dispersion */
    421 	l_fp reftime;		/* peer.reftime */
    422 	l_fp org;		/* peer.org */
    423 	l_fp rec;		/* peer.rec */
    424 	l_fp xmt;		/* peer.xmt */
    425 	s_fp filtdelay[NTP_SHIFT];	/* delay shift register */
    426 	l_fp filtoffset[NTP_SHIFT];	/* offset shift register */
    427 	u_char order[NTP_SHIFT];	/* order of peers from last filter */
    428 	s_fp delay;		/* peer.estdelay */
    429 	u_fp dispersion;	/* peer.estdisp */
    430 	l_fp offset;		/* peer.estoffset */
    431 	u_fp selectdisp;	/* peer select dispersion */
    432 	int32 unused1;		/* (obsolete) */
    433 	int32 unused2;
    434 	int32 unused3;
    435 	int32 unused4;
    436 	int32 unused5;
    437 	int32 unused6;
    438 	int32 unused7;
    439 	s_fp estbdelay;		/* broadcast offset */
    440 	u_int v6_flag;			/* is this v6 or not */
    441 	u_int unused9;			/* (unused) padding for dstadr6 */
    442 	struct in6_addr dstadr6; 	/* local address (v6-like) */
    443 	struct in6_addr srcadr6; 	/* sources address (v6-like) */
    444 };
    445 
    446 
    447 /*
    448  * Peer statistics structure
    449  */
    450 struct info_peer_stats {
    451 	u_int32 dstadr;		/* local address */
    452 	u_int32 srcadr;		/* remote address */
    453 	u_short srcport;	/* remote port */
    454 	u_short flags;		/* peer flags */
    455 	u_int32 timereset;	/* time counters were reset */
    456 	u_int32 timereceived;	/* time since a packet received */
    457 	u_int32 timetosend;	/* time until a packet sent */
    458 	u_int32 timereachable;	/* time peer has been reachable */
    459 	u_int32 sent;		/* number sent */
    460 	u_int32 unused1;	/* (unused) */
    461 	u_int32 processed;	/* number processed */
    462 	u_int32 unused2;	/* (unused) */
    463 	u_int32 badauth;	/* bad authentication */
    464 	u_int32 bogusorg;	/* bogus origin */
    465 	u_int32 oldpkt;		/* duplicate */
    466 	u_int32 unused3;	/* (unused) */
    467 	u_int32 unused4;	/* (unused) */
    468 	u_int32 seldisp;	/* bad dispersion */
    469 	u_int32 selbroken;	/* bad reference time */
    470 	u_int32 unused5;	/* (unused) */
    471 	u_char candidate;	/* select order */
    472 	u_char unused6;		/* (unused) */
    473 	u_char unused7;		/* (unused) */
    474 	u_char unused8;		/* (unused) */
    475 	u_int v6_flag;			/* is this v6 or not */
    476 	u_int unused9;			/* (unused) padding for dstadr6 */
    477 	struct in6_addr dstadr6;	/* local address */
    478 	struct in6_addr srcadr6;	/* remote address */
    479 };
    480 
    481 
    482 /*
    483  * Loop filter variables
    484  */
    485 struct info_loop {
    486 	l_fp last_offset;
    487 	l_fp drift_comp;
    488 	u_int32 compliance;
    489 	u_int32 watchdog_timer;
    490 };
    491 
    492 
    493 /*
    494  * System info.  Mostly the sys.* variables, plus a few unique to
    495  * the implementation.
    496  */
    497 struct info_sys {
    498 	u_int32 peer;		/* system peer address (v4) */
    499 	u_char peer_mode;	/* mode we are syncing to peer in */
    500 	u_char leap;		/* system leap bits */
    501 	u_char stratum;		/* our stratum */
    502 	s_char precision;	/* local clock precision */
    503 	s_fp rootdelay;		/* delay from sync source */
    504 	u_fp rootdispersion;	/* dispersion from sync source */
    505 	u_int32 refid;		/* reference ID of sync source */
    506 	l_fp reftime;		/* system reference time */
    507 	u_int32 poll;		/* system poll interval */
    508 	u_char flags;		/* system flags */
    509 	u_char unused1;		/* unused */
    510 	u_char unused2;		/* unused */
    511 	u_char unused3;		/* unused */
    512 	s_fp bdelay;		/* default broadcast offset */
    513 	s_fp frequency;		/* frequency residual (scaled ppm)  */
    514 	l_fp authdelay;		/* default authentication delay */
    515 	u_fp stability;		/* clock stability (scaled ppm) */
    516 	u_int v6_flag;		/* is this v6 or not */
    517 	u_int unused4;		/* unused, padding for peer6 */
    518 	struct in6_addr peer6;	/* system peer address (v6) */
    519 };
    520 
    521 
    522 /*
    523  * System stats.  These are collected in the protocol module
    524  */
    525 struct info_sys_stats {
    526 	u_int32 timeup;		/* time since restart */
    527 	u_int32 timereset;	/* time since reset */
    528 	u_int32 denied;		/* access denied */
    529 	u_int32 oldversionpkt;	/* recent version */
    530 	u_int32 newversionpkt;	/* current version */
    531 	u_int32 unknownversion;	/* bad version */
    532 	u_int32 badlength;	/* bad length or format */
    533 	u_int32 processed;	/* packets processed */
    534 	u_int32 badauth;	/* bad authentication */
    535 	u_int32 received;	/* packets received */
    536 	u_int32 limitrejected;	/* rate exceeded */
    537 	u_int32 lamport;	/* Lamport violations */
    538 	u_int32 tsrounding;	/* Timestamp rounding errors */
    539 };
    540 
    541 
    542 /*
    543  * System stats - old version
    544  */
    545 struct old_info_sys_stats {
    546 	u_int32 timeup;		/* time since restart */
    547 	u_int32 timereset;	/* time since reset */
    548 	u_int32 denied;		/* access denied */
    549 	u_int32 oldversionpkt;	/* recent version */
    550 	u_int32 newversionpkt;	/* current version */
    551 	u_int32 unknownversion;	/* bad version */
    552 	u_int32 badlength;	/* bad length or format */
    553 	u_int32 processed;	/* packets processed */
    554 	u_int32 badauth;	/* bad authentication */
    555 	u_int32 wanderhold;	/* (not used) */
    556 };
    557 
    558 
    559 /*
    560  * Peer memory statistics.  Collected in the peer module.
    561  */
    562 struct info_mem_stats {
    563 	u_int32 timereset;	/* time since reset */
    564 	u_short totalpeermem;
    565 	u_short freepeermem;
    566 	u_int32 findpeer_calls;
    567 	u_int32 allocations;
    568 	u_int32 demobilizations;
    569 	u_char hashcount[NTP_HASH_SIZE];
    570 };
    571 
    572 
    573 /*
    574  * I/O statistics.  Collected in the I/O module
    575  */
    576 struct info_io_stats {
    577 	u_int32 timereset;	/* time since reset */
    578 	u_short totalrecvbufs;	/* total receive bufs */
    579 	u_short freerecvbufs;	/* free buffers */
    580 	u_short fullrecvbufs;	/* full buffers */
    581 	u_short lowwater;	/* number of times we've added buffers */
    582 	u_int32 dropped;	/* dropped packets */
    583 	u_int32 ignored;	/* ignored packets */
    584 	u_int32 received;	/* received packets */
    585 	u_int32 sent;		/* packets sent */
    586 	u_int32 notsent;	/* packets not sent */
    587 	u_int32 interrupts;	/* interrupts we've handled */
    588 	u_int32 int_received;	/* received by interrupt handler */
    589 };
    590 
    591 
    592 /*
    593  * Timer stats.  Guess where from.
    594  */
    595 struct info_timer_stats {
    596 	u_int32 timereset;	/* time since reset */
    597 	u_int32 alarms;		/* alarms we've handled */
    598 	u_int32 overflows;	/* timer overflows */
    599 	u_int32 xmtcalls;	/* calls to xmit */
    600 };
    601 
    602 
    603 /*
    604  * Structure for passing peer configuration information
    605  */
    606 struct old_conf_peer {
    607 	u_int32 peeraddr;	/* address to poll */
    608 	u_char hmode;		/* mode, either broadcast, active or client */
    609 	u_char version;		/* version number to poll with */
    610 	u_char minpoll;		/* min host poll interval */
    611 	u_char maxpoll;		/* max host poll interval */
    612 	u_char flags;		/* flags for this request */
    613 	u_char ttl;		/* time to live (multicast) or refclock mode */
    614 	u_short unused;		/* unused */
    615 	keyid_t keyid;		/* key to use for this association */
    616 };
    617 
    618 struct conf_peer {
    619 	u_int32 peeraddr;	/* address to poll */
    620 	u_char hmode;		/* mode, either broadcast, active or client */
    621 	u_char version;		/* version number to poll with */
    622 	u_char minpoll;		/* min host poll interval */
    623 	u_char maxpoll;		/* max host poll interval */
    624 	u_char flags;		/* flags for this request */
    625 	u_char ttl;		/* time to live (multicast) or refclock mode */
    626 	u_short unused1;	/* unused */
    627 	keyid_t keyid;		/* key to use for this association */
    628 	char keystr[128];	/* public key file name */
    629 	u_int v6_flag;		/* is this v6 or not */
    630 	u_int unused2;			/* unused, padding for peeraddr6 */
    631 	struct in6_addr peeraddr6;	/* ipv6 address to poll */
    632 };
    633 
    634 #define	CONF_FLAG_AUTHENABLE	0x01
    635 #define CONF_FLAG_PREFER	0x02
    636 #define CONF_FLAG_BURST		0x04
    637 #define CONF_FLAG_IBURST	0x08
    638 #define CONF_FLAG_NOSELECT	0x10
    639 #define CONF_FLAG_SKEY		0x20
    640 
    641 /*
    642  * Structure for passing peer deletion information.  Currently
    643  * we only pass the address and delete all configured peers with
    644  * this addess.
    645  */
    646 struct conf_unpeer {
    647 	u_int32 peeraddr;		/* address of peer */
    648 	u_int v6_flag;			/* is this v6 or not */
    649 	struct in6_addr peeraddr6;	/* address of peer (v6) */
    650 };
    651 
    652 /*
    653  * Structure used for returning restrict entries
    654  */
    655 struct info_restrict {
    656 	u_int32 addr;		/* match address */
    657 	u_int32 mask;		/* match mask */
    658 	u_int32 count;		/* number of packets matched */
    659 	u_short rflags;		/* restrict flags */
    660 	u_short mflags;		/* match flags */
    661 	u_int v6_flag;		/* is this v6 or not */
    662 	u_int unused1;		/* unused, padding for addr6 */
    663 	struct in6_addr addr6;	/* match address (v6) */
    664 	struct in6_addr mask6; 	/* match mask (v6) */
    665 };
    666 
    667 
    668 /*
    669  * Structure used for specifying restrict entries
    670  */
    671 struct conf_restrict {
    672 	u_int32	addr;		/* match address */
    673 	u_int32 mask;		/* match mask */
    674 	short ippeerlimit;	/* ip peer limit */
    675 	int srvfuzrft;		/* server response fuzz reftime: poll */
    676 	u_short flags;		/* restrict flags XXX: OLD size and name */
    677 	u_short mflags;		/* match flags */
    678 	short unused1;		/* (unused) padding for v6_flag */
    679 	u_int v6_flag;		/* is this v6 or not */
    680 	struct in6_addr addr6; 	/* match address (v6) */
    681 	struct in6_addr mask6; 	/* match mask (v6) */
    682 };
    683 
    684 
    685 /*
    686  * Structure used for returning monitor data
    687  */
    688 struct info_monitor_1 {
    689 	u_int32 avg_int;	/* avg s between packets from this host */
    690 	u_int32 last_int;	/* s since we last received a packet */
    691 	u_int32 restr;		/* restrict bits (was named lastdrop) */
    692 	u_int32 count;		/* count of packets received */
    693 	u_int32 addr;		/* host address V4 style */
    694 	u_int32 daddr;		/* destination host address */
    695 	u_int32 flags;		/* flags about destination */
    696 	u_short port;		/* port number of last reception */
    697 	u_char mode;		/* mode of last packet */
    698 	u_char version;		/* version number of last packet */
    699 	u_int v6_flag;		/* is this v6 or not */
    700 	u_int unused1;		/* unused, padding for addr6 */
    701 	struct in6_addr addr6;	/* host address V6 style */
    702 	struct in6_addr daddr6;	/* host address V6 style */
    703 };
    704 
    705 
    706 /*
    707  * Structure used for returning monitor data
    708  */
    709 struct info_monitor {
    710 	u_int32 avg_int;	/* avg s between packets from this host */
    711 	u_int32 last_int;	/* s since we last received a packet */
    712 	u_int32 restr;		/* restrict bits (was named lastdrop) */
    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 	u_int unused1;		/* unused, padding for addr6 */
    720 	struct in6_addr addr6;	/* host v6 address */
    721 };
    722 
    723 /*
    724  * Structure used for returning monitor data (old format)
    725  */
    726 struct old_info_monitor {
    727 	u_int32 lasttime;	/* last packet from this host */
    728 	u_int32 firsttime;	/* first time we received a packet */
    729 	u_int32 count;		/* count of packets received */
    730 	u_int32 addr;		/* host address */
    731 	u_short port;		/* port number of last reception */
    732 	u_char mode;		/* mode of last packet */
    733 	u_char version;		/* version number of last packet */
    734 	u_int v6_flag;		/* is this v6 or not */
    735 	struct in6_addr addr6;	/* host address  (v6)*/
    736 };
    737 
    738 /*
    739  * Structure used for passing indication of flags to clear
    740  */
    741 struct reset_flags {
    742 	u_int32 flags;
    743 };
    744 
    745 #define	RESET_FLAG_ALLPEERS	0x01
    746 #define	RESET_FLAG_IO		0x02
    747 #define	RESET_FLAG_SYS		0x04
    748 #define	RESET_FLAG_MEM		0x08
    749 #define	RESET_FLAG_TIMER	0x10
    750 #define	RESET_FLAG_AUTH		0x20
    751 #define	RESET_FLAG_CTL		0x40
    752 
    753 #define	RESET_ALLFLAGS (	\
    754 	RESET_FLAG_ALLPEERS |	\
    755 	RESET_FLAG_IO |		\
    756 	RESET_FLAG_SYS |	\
    757 	RESET_FLAG_MEM |	\
    758 	RESET_FLAG_TIMER |	\
    759 	RESET_FLAG_AUTH |	\
    760 	RESET_FLAG_CTL		\
    761 )
    762 
    763 /*
    764  * Structure used to return information concerning the authentication
    765  * module.
    766  */
    767 struct info_auth {
    768 	u_int32 timereset;	/* time counters were reset */
    769 	u_int32 numkeys;	/* number of keys we know */
    770 	u_int32 numfreekeys;	/* number of free keys */
    771 	u_int32 keylookups;	/* calls to authhavekey() */
    772 	u_int32 keynotfound;	/* requested key unknown */
    773 	u_int32 encryptions;	/* number of encryptions */
    774 	u_int32 decryptions;	/* number of decryptions */
    775 	u_int32 expired;	/* number of expired keys */
    776 	u_int32 keyuncached;	/* calls to encrypt/decrypt with uncached key */
    777 };
    778 
    779 
    780 /*
    781  * Structure used to pass trap information to the client
    782  */
    783 struct info_trap {
    784 	u_int32 local_address;	/* local interface addres (v4) */
    785 	u_int32 trap_address;	/* remote client's addres (v4) */
    786 	u_short trap_port;	/* remote port number */
    787 	u_short sequence;	/* sequence number */
    788 	u_int32 settime;	/* time trap last set */
    789 	u_int32 origtime;	/* time trap originally set */
    790 	u_int32 resets;		/* number of resets on this trap */
    791 	u_int32 flags;		/* trap flags, as defined in ntp_control.h */
    792 	u_int v6_flag;			/* is this v6 or not */
    793 	struct in6_addr local_address6;	/* local interface address (v6) */
    794 	struct in6_addr trap_address6;	/* remote client's address (v6) */
    795 };
    796 
    797 /*
    798  * Structure used to pass add/clear trap information to the client
    799  */
    800 struct conf_trap {
    801 	u_int32 local_address;	/* remote client's address */
    802 	u_int32 trap_address;	/* local interface address */
    803 	u_short trap_port;	/* remote client's port */
    804 	u_short unused;		/* (unused) */
    805 	u_int v6_flag;			/* is this v6 or not */
    806 	struct in6_addr local_address6;	/* local interface address (v6) */
    807 	struct in6_addr trap_address6;	/* remote client's address (v6) */
    808 };
    809 
    810 
    811 /*
    812  * Structure used to return statistics from the control module
    813  */
    814 struct info_control {
    815 	u_int32 ctltimereset;
    816 	u_int32 numctlreq;	/* number of requests we've received */
    817 	u_int32 numctlbadpkts;	/* number of bad control packets */
    818 	u_int32 numctlresponses;	/* # resp packets sent */
    819 	u_int32 numctlfrags;	/* # of fragments sent */
    820 	u_int32 numctlerrors;	/* number of error responses sent */
    821 	u_int32 numctltooshort;	/* number of too short input packets */
    822 	u_int32 numctlinputresp;	/* number of responses on input */
    823 	u_int32 numctlinputfrag;	/* number of fragments on input */
    824 	u_int32 numctlinputerr;	/* # input pkts with err bit set */
    825 	u_int32 numctlbadoffset;	/* # input pkts with nonzero offset */
    826 	u_int32 numctlbadversion;	/* # input pkts with unknown version */
    827 	u_int32 numctldatatooshort;	/* data too short for count */
    828 	u_int32 numctlbadop;	/* bad op code found in packet */
    829 	u_int32 numasyncmsgs;		/* # async messages we've sent */
    830 };
    831 
    832 
    833 /*
    834  * Structure used to return clock information
    835  */
    836 struct info_clock {
    837 	u_int32 clockadr;
    838 	u_char type;
    839 	u_char flags;
    840 	u_char lastevent;
    841 	u_char currentstatus;
    842 	u_int32 polls;
    843 	u_int32 noresponse;
    844 	u_int32 badformat;
    845 	u_int32 baddata;
    846 	u_int32 timestarted;
    847 	l_fp fudgetime1;
    848 	l_fp fudgetime2;
    849 	int32 fudgeval1;
    850 	u_int32 fudgeval2;
    851 };
    852 
    853 
    854 /*
    855  * Structure used for setting clock fudge factors
    856  */
    857 struct conf_fudge {
    858 	u_int32 clockadr;
    859 	u_int32 which;
    860 	l_fp fudgetime;
    861 	u_int32 fudgeval_flags;
    862 };
    863 
    864 #define	FUDGE_TIME1	1
    865 #define	FUDGE_TIME2	2
    866 #define	FUDGE_VAL1	3
    867 #define	FUDGE_VAL2	4
    868 #define	FUDGE_FLAGS	5
    869 
    870 
    871 /*
    872  * Structure used for returning clock debugging info
    873  */
    874 #define	NUMCBUGVALUES	16
    875 #define	NUMCBUGTIMES	32
    876 
    877 struct info_clkbug {
    878 	u_int32 clockadr;
    879 	u_char nvalues;
    880 	u_char ntimes;
    881 	u_short svalues;
    882 	u_int32 stimes;
    883 	u_int32 values[NUMCBUGVALUES];
    884 	l_fp times[NUMCBUGTIMES];
    885 };
    886 
    887 /*
    888  * Structure used for returning kernel pll/PPS information
    889  */
    890 struct info_kernel {
    891 	int32 offset;
    892 	int32 freq;
    893 	int32 maxerror;
    894 	int32 esterror;
    895 	u_short status;
    896 	u_short shift;
    897 	int32 constant;
    898 	int32 precision;
    899 	int32 tolerance;
    900 
    901 /*
    902  * Variables used only if PPS signal discipline is implemented
    903  */
    904 	int32 ppsfreq;
    905 	int32 jitter;
    906 	int32 stabil;
    907 	int32 jitcnt;
    908 	int32 calcnt;
    909 	int32 errcnt;
    910 	int32 stbcnt;
    911 };
    912 
    913 /*
    914  * interface statistics
    915  */
    916 struct info_if_stats {
    917 	union addrun unaddr;		/* address */
    918 	union addrun unbcast;		/* broadcast */
    919 	union addrun unmask;		/* mask */
    920 	u_int32 v6_flag;		/* is this v6 */
    921 	char name[32];			/* name of interface */
    922 	int32 flags;			/* interface flags */
    923 	int32 last_ttl;			/* last TTL specified */
    924 	int32 num_mcast;		/* No. of IP addresses in multicast socket */
    925 	int32 received;			/* number of incoming packets */
    926 	int32 sent;			/* number of outgoing packets */
    927 	int32 notsent;			/* number of send failures */
    928 	int32 uptime;			/* number of seconds this interface was active */
    929 	u_int32 scopeid;		/* Scope used for Multicasting */
    930 	u_int32 ifindex;		/* interface index - from system */
    931 	u_int32 ifnum;			/* sequential interface number */
    932 	u_int32 peercnt;		/* number of peers referencinf this interface - informational only */
    933 	u_short family;			/* Address family */
    934 	u_char ignore_packets;		/* Specify whether the packet should be ignored */
    935 	u_char action;			/* reason the item is listed */
    936 	int32 _filler0;			/* pad to a 64 bit size boundary */
    937 };
    938 
    939 #define IFS_EXISTS	1	/* just exists */
    940 #define IFS_CREATED	2	/* was just created */
    941 #define IFS_DELETED	3	/* was just delete */
    942 
    943 /*
    944  * Info returned with IP -> hostname lookup
    945  */
    946 /* 144 might need to become 32, matching data[] member of req_pkt */
    947 #define NTP_MAXHOSTNAME (32 - sizeof(u_int32) - sizeof(u_short))
    948 struct info_dns_assoc {
    949 	u_int32 peeraddr;	/* peer address (HMS: being careful...) */
    950 	associd_t associd;	/* association ID */
    951 	char hostname[NTP_MAXHOSTNAME];	/* hostname */
    952 };
    953 
    954 /*
    955  * function declarations
    956  */
    957 int get_packet_mode(struct recvbuf *rbufp); /* Return packet mode */
    958 
    959 #endif /* NTP_REQUEST_H */
    960