2 * ntp_control.c - respond to control messages and send async traps
15 #include "ntp_refclock.h"
16 #include "ntp_control.h"
17 #include "ntp_stdlib.h"
23 #include <netinet/in.h>
24 #include <arpa/inet.h>
27 * Structure to hold request procedure information
32 #define NO_REQUEST (-1)
35 short control_code; /* defined request code */
36 u_short flags; /* flags word */
37 void (*handler) P((struct recvbuf *, int)); /* handle request */
41 * Only one flag. Authentication required or not.
47 * Request processing routines
49 static void ctl_error P((int));
51 static u_short ctlclkstatus P((struct refclockstat *));
53 static void ctl_flushpkt P((int));
54 static void ctl_putdata P((const char *, unsigned int, int));
55 static void ctl_putstr P((const char *, const char *,
57 static void ctl_putdbl P((const char *, double));
58 static void ctl_putuint P((const char *, u_long));
59 static void ctl_puthex P((const char *, u_long));
60 static void ctl_putint P((const char *, long));
61 static void ctl_putts P((const char *, l_fp *));
62 static void ctl_putadr P((const char *, u_int32, struct sockaddr_storage*));
63 static void ctl_putid P((const char *, char *));
64 static void ctl_putarray P((const char *, double *, int));
65 static void ctl_putsys P((int));
66 static void ctl_putpeer P((int, struct peer *));
68 static void ctl_putclock P((int, struct refclockstat *, int));
70 static struct ctl_var *ctl_getitem P((struct ctl_var *, char **));
71 static u_long count_var P((struct ctl_var *));
72 static void control_unspec P((struct recvbuf *, int));
73 static void read_status P((struct recvbuf *, int));
74 static void read_variables P((struct recvbuf *, int));
75 static void write_variables P((struct recvbuf *, int));
76 static void read_clock_status P((struct recvbuf *, int));
77 static void write_clock_status P((struct recvbuf *, int));
78 static void set_trap P((struct recvbuf *, int));
79 static void unset_trap P((struct recvbuf *, int));
80 static struct ctl_trap *ctlfindtrap P((struct sockaddr_storage *,
83 static struct ctl_proc control_codes[] = {
84 { CTL_OP_UNSPEC, NOAUTH, control_unspec },
85 { CTL_OP_READSTAT, NOAUTH, read_status },
86 { CTL_OP_READVAR, NOAUTH, read_variables },
87 { CTL_OP_WRITEVAR, AUTH, write_variables },
88 { CTL_OP_READCLOCK, NOAUTH, read_clock_status },
89 { CTL_OP_WRITECLOCK, NOAUTH, write_clock_status },
90 { CTL_OP_SETTRAP, NOAUTH, set_trap },
91 { CTL_OP_UNSETTRAP, NOAUTH, unset_trap },
96 * System variable values. The array can be indexed by the variable
97 * index to find the textual name.
99 static struct ctl_var sys_var[] = {
100 { 0, PADDING, "" }, /* 0 */
101 { CS_LEAP, RW, "leap" }, /* 1 */
102 { CS_STRATUM, RO, "stratum" }, /* 2 */
103 { CS_PRECISION, RO, "precision" }, /* 3 */
104 { CS_ROOTDELAY, RO, "rootdelay" }, /* 4 */
105 { CS_ROOTDISPERSION, RO, "rootdispersion" }, /* 5 */
106 { CS_REFID, RO, "refid" }, /* 6 */
107 { CS_REFTIME, RO, "reftime" }, /* 7 */
108 { CS_POLL, RO, "poll" }, /* 8 */
109 { CS_PEERID, RO, "peer" }, /* 9 */
110 { CS_STATE, RO, "state" }, /* 10 */
111 { CS_OFFSET, RO, "offset" }, /* 11 */
112 { CS_DRIFT, RO, "frequency" }, /* 12 */
113 { CS_JITTER, RO, "jitter" }, /* 13 */
114 { CS_CLOCK, RO, "clock" }, /* 14 */
115 { CS_PROCESSOR, RO, "processor" }, /* 15 */
116 { CS_SYSTEM, RO, "system" }, /* 16 */
117 { CS_VERSION, RO, "version" }, /* 17 */
118 { CS_STABIL, RO, "stability" }, /* 18 */
119 { CS_VARLIST, RO, "sys_var_list" }, /* 19 */
121 { CS_FLAGS, RO, "flags" }, /* 20 */
122 { CS_HOST, RO, "hostname" }, /* 21 */
123 { CS_PUBLIC, RO, "hostkey" }, /* 22 */
124 { CS_CERTIF, RO, "cert" }, /* 23 */
125 { CS_REVTIME, RO, "refresh" }, /* 24 */
126 { CS_LEAPTAB, RO, "leapseconds" }, /* 25 */
127 { CS_TAI, RO, "tai" }, /* 26 */
128 { CS_DIGEST, RO, "signature" }, /* 27 */
130 { 0, EOV, "" } /* 28 */
133 static struct ctl_var *ext_sys_var = (struct ctl_var *)0;
136 * System variables we print by default (in fuzzball order,
139 static u_char def_sys_var[] = {
174 static struct ctl_var peer_var[] = {
175 { 0, PADDING, "" }, /* 0 */
176 { CP_CONFIG, RO, "config" }, /* 1 */
177 { CP_AUTHENABLE, RO, "authenable" }, /* 2 */
178 { CP_AUTHENTIC, RO, "authentic" }, /* 3 */
179 { CP_SRCADR, RO, "srcadr" }, /* 4 */
180 { CP_SRCPORT, RO, "srcport" }, /* 5 */
181 { CP_DSTADR, RO, "dstadr" }, /* 6 */
182 { CP_DSTPORT, RO, "dstport" }, /* 7 */
183 { CP_LEAP, RO, "leap" }, /* 8 */
184 { CP_HMODE, RO, "hmode" }, /* 9 */
185 { CP_STRATUM, RO, "stratum" }, /* 10 */
186 { CP_PPOLL, RO, "ppoll" }, /* 11 */
187 { CP_HPOLL, RO, "hpoll" }, /* 12 */
188 { CP_PRECISION, RO, "precision" }, /* 13 */
189 { CP_ROOTDELAY, RO, "rootdelay" }, /* 14 */
190 { CP_ROOTDISPERSION, RO, "rootdispersion" }, /* 15 */
191 { CP_REFID, RO, "refid" }, /* 16 */
192 { CP_REFTIME, RO, "reftime" }, /* 17 */
193 { CP_ORG, RO, "org" }, /* 18 */
194 { CP_REC, RO, "rec" }, /* 19 */
195 { CP_XMT, RO, "xmt" }, /* 20 */
196 { CP_REACH, RO, "reach" }, /* 21 */
197 { CP_VALID, RO, "unreach" }, /* 22 */
198 { CP_TIMER, RO, "timer" }, /* 23 */
199 { CP_DELAY, RO, "delay" }, /* 24 */
200 { CP_OFFSET, RO, "offset" }, /* 25 */
201 { CP_JITTER, RO, "jitter" }, /* 26 */
202 { CP_DISPERSION, RO, "dispersion" }, /* 27 */
203 { CP_KEYID, RO, "keyid" }, /* 28 */
204 { CP_FILTDELAY, RO, "filtdelay=" }, /* 29 */
205 { CP_FILTOFFSET, RO, "filtoffset=" }, /* 30 */
206 { CP_PMODE, RO, "pmode" }, /* 31 */
207 { CP_RECEIVED, RO, "received"}, /* 32 */
208 { CP_SENT, RO, "sent" }, /* 33 */
209 { CP_FILTERROR, RO, "filtdisp=" }, /* 34 */
210 { CP_FLASH, RO, "flash" }, /* 35 */
211 { CP_TTL, RO, "ttl" }, /* 36 */
212 { CP_RANK, RO, "rank" }, /* 37 */
213 { CP_VARLIST, RO, "peer_var_list" }, /* 38 */
215 { CP_FLAGS, RO, "flags" }, /* 39 */
216 { CP_HOST, RO, "hostname" }, /* 40 */
217 { CP_INITSEQ, RO, "initsequence" }, /* 41 */
218 { CP_INITKEY, RO, "initkey" }, /* 42 */
219 { CP_INITTSP, RO, "timestamp" }, /* 43 */
220 { CP_DIGEST, RO, "signature" }, /* 44 */
221 { CP_IDENT, RO, "identity" }, /* 45 */
223 { 0, EOV, "" } /* 39/46 */
228 * Peer variables we print by default
230 static u_char def_peer_var[] = {
274 * Clock variable list
276 static struct ctl_var clock_var[] = {
277 { 0, PADDING, "" }, /* 0 */
278 { CC_TYPE, RO, "type" }, /* 1 */
279 { CC_TIMECODE, RO, "timecode" }, /* 2 */
280 { CC_POLL, RO, "poll" }, /* 3 */
281 { CC_NOREPLY, RO, "noreply" }, /* 4 */
282 { CC_BADFORMAT, RO, "badformat" }, /* 5 */
283 { CC_BADDATA, RO, "baddata" }, /* 6 */
284 { CC_FUDGETIME1, RO, "fudgetime1" }, /* 7 */
285 { CC_FUDGETIME2, RO, "fudgetime2" }, /* 8 */
286 { CC_FUDGEVAL1, RO, "stratum" }, /* 9 */
287 { CC_FUDGEVAL2, RO, "refid" }, /* 10 */
288 { CC_FLAGS, RO, "flags" }, /* 11 */
289 { CC_DEVICE, RO, "device" }, /* 12 */
290 { CC_VARLIST, RO, "clock_var_list" }, /* 13 */
291 { 0, EOV, "" } /* 14 */
296 * Clock variables printed by default
298 static u_char def_clock_var[] = {
300 CC_TYPE, /* won't be output if device = known */
317 * System and processor definitions.
321 # define STR_SYSTEM "UNIX"
323 # ifndef STR_PROCESSOR
324 # define STR_PROCESSOR "unknown"
327 static char str_system[] = STR_SYSTEM;
328 static char str_processor[] = STR_PROCESSOR;
330 # include <sys/utsname.h>
331 static struct utsname utsnamebuf;
332 #endif /* HAVE_UNAME */
335 * Trap structures. We only allow a few of these, and send a copy of
336 * each async message to each live one. Traps time out after an hour, it
337 * is up to the trap receipient to keep resetting it to avoid being
341 struct ctl_trap ctl_trap[CTL_MAXTRAPS];
345 * Type bits, for ctlsettrap() call.
347 #define TRAP_TYPE_CONFIG 0 /* used by configuration code */
348 #define TRAP_TYPE_PRIO 1 /* priority trap */
349 #define TRAP_TYPE_NONPRIO 2 /* nonpriority trap */
353 * List relating reference clock types to control message time sources.
354 * Index by the reference clock type. This list will only be used iff
355 * the reference clock driver doesn't set peer->sstclktype to something
356 * different than CTL_SST_TS_UNSPEC.
358 static u_char clocktypes[] = {
359 CTL_SST_TS_NTP, /* REFCLK_NONE (0) */
360 CTL_SST_TS_LOCAL, /* REFCLK_LOCALCLOCK (1) */
361 CTL_SST_TS_UHF, /* REFCLK_GPS_TRAK (2) */
362 CTL_SST_TS_HF, /* REFCLK_WWV_PST (3) */
363 CTL_SST_TS_LF, /* REFCLK_WWVB_SPECTRACOM (4) */
364 CTL_SST_TS_UHF, /* REFCLK_TRUETIME (5) */
365 CTL_SST_TS_UHF, /* REFCLK_GOES_TRAK (6) */
366 CTL_SST_TS_HF, /* REFCLK_CHU (7) */
367 CTL_SST_TS_LF, /* REFCLOCK_PARSE (default) (8) */
368 CTL_SST_TS_LF, /* REFCLK_GPS_MX4200 (9) */
369 CTL_SST_TS_UHF, /* REFCLK_GPS_AS2201 (10) */
370 CTL_SST_TS_UHF, /* REFCLK_GPS_ARBITER (11) */
371 CTL_SST_TS_UHF, /* REFCLK_IRIG_TPRO (12) */
372 CTL_SST_TS_ATOM, /* REFCLK_ATOM_LEITCH (13) */
373 CTL_SST_TS_LF, /* REFCLK_MSF_EES (14) */
374 CTL_SST_TS_UHF, /* REFCLK_TRUETIME (15) */
375 CTL_SST_TS_UHF, /* REFCLK_IRIG_BANCOMM (16) */
376 CTL_SST_TS_UHF, /* REFCLK_GPS_DATU (17) */
377 CTL_SST_TS_TELEPHONE, /* REFCLK_NIST_ACTS (18) */
378 CTL_SST_TS_HF, /* REFCLK_WWV_HEATH (19) */
379 CTL_SST_TS_UHF, /* REFCLK_GPS_NMEA (20) */
380 CTL_SST_TS_UHF, /* REFCLK_GPS_VME (21) */
381 CTL_SST_TS_ATOM, /* REFCLK_ATOM_PPS (22) */
382 CTL_SST_TS_TELEPHONE, /* REFCLK_PTB_ACTS (23) */
383 CTL_SST_TS_TELEPHONE, /* REFCLK_USNO (24) */
384 CTL_SST_TS_UHF, /* REFCLK_TRUETIME (25) */
385 CTL_SST_TS_UHF, /* REFCLK_GPS_HP (26) */
386 CTL_SST_TS_TELEPHONE, /* REFCLK_ARCRON_MSF (27) */
387 CTL_SST_TS_TELEPHONE, /* REFCLK_SHM (28) */
388 CTL_SST_TS_UHF, /* REFCLK_PALISADE (29) */
389 CTL_SST_TS_UHF, /* REFCLK_ONCORE (30) */
390 CTL_SST_TS_UHF, /* REFCLK_JUPITER (31) */
391 CTL_SST_TS_LF, /* REFCLK_CHRONOLOG (32) */
392 CTL_SST_TS_LF, /* REFCLK_DUMBCLOCK (32) */
393 CTL_SST_TS_LF, /* REFCLK_ULINK (33) */
394 CTL_SST_TS_LF, /* REFCLK_PCF (35) */
395 CTL_SST_TS_LF, /* REFCLK_WWV (36) */
396 CTL_SST_TS_LF, /* REFCLK_FG (37) */
397 CTL_SST_TS_UHF, /* REFCLK_HOPF_SERIAL (38) */
398 CTL_SST_TS_UHF, /* REFCLK_HOPF_PCI (39) */
399 CTL_SST_TS_LF, /* REFCLK_JJY (40) */
400 CTL_SST_TS_UHF, /* REFCLK_TT560 (41) */
401 CTL_SST_TS_UHF, /* REFCLK_ZYFER (42) */
402 CTL_SST_TS_UHF, /* REFCLK_RIPENCC (43) */
403 CTL_SST_TS_UHF, /* REFCLK_NEOCLOCK4X (44) */
408 * Keyid used for authenticating write requests.
410 keyid_t ctl_auth_keyid;
413 * We keep track of the last error reported by the system internally
415 static u_char ctl_sys_last_event;
416 static u_char ctl_sys_num_events;
420 * Statistic counters to keep track of requests and responses.
422 u_long ctltimereset; /* time stats reset */
423 u_long numctlreq; /* number of requests we've received */
424 u_long numctlbadpkts; /* number of bad control packets */
425 u_long numctlresponses; /* number of resp packets sent with data */
426 u_long numctlfrags; /* number of fragments sent */
427 u_long numctlerrors; /* number of error responses sent */
428 u_long numctltooshort; /* number of too short input packets */
429 u_long numctlinputresp; /* number of responses on input */
430 u_long numctlinputfrag; /* number of fragments on input */
431 u_long numctlinputerr; /* number of input pkts with err bit set */
432 u_long numctlbadoffset; /* number of input pkts with nonzero offset */
433 u_long numctlbadversion; /* number of input pkts with unknown version */
434 u_long numctldatatooshort; /* data too short for count */
435 u_long numctlbadop; /* bad op code found in packet */
436 u_long numasyncmsgs; /* number of async messages we've sent */
439 * Response packet used by these routines. Also some state information
440 * so that we can handle packet formatting within a common set of
441 * subroutines. Note we try to enter data in place whenever possible,
442 * but the need to set the more bit correctly means we occasionally
443 * use the extra buffer and copy.
445 static struct ntp_control rpkt;
446 static u_char res_version;
447 static u_char res_opcode;
448 static associd_t res_associd;
449 static int res_offset;
450 static u_char * datapt;
451 static u_char * dataend;
452 static int datalinelen;
453 static int datanotbinflag;
454 static struct sockaddr_storage *rmt_addr;
455 static struct interface *lcl_inter;
457 static u_char res_authenticate;
458 static u_char res_authokay;
459 static keyid_t res_keyid;
461 #define MAXDATALINELEN (72)
463 static u_char res_async; /* set to 1 if this is async trap response */
466 * Pointers for saving state when decoding request packets
472 * init_control - initialize request data
481 #endif /* HAVE_UNAME */
486 ctl_sys_last_event = EVNT_UNSPEC;
487 ctl_sys_num_events = 0;
490 for (i = 0; i < CTL_MAXTRAPS; i++)
491 ctl_trap[i].tr_flags = 0;
496 * ctl_error - send an error response for the current request
505 printf("sending control error %d\n", errcode);
508 * Fill in the fields. We assume rpkt.sequence and rpkt.associd
509 * have already been filled in.
511 rpkt.r_m_e_op = (u_char) (CTL_RESPONSE|CTL_ERROR|(res_opcode &
513 rpkt.status = htons((u_short) ((errcode<<8) & 0xff00));
517 * send packet and bump counters
519 if (res_authenticate && sys_authenticate) {
522 *(u_int32 *)((u_char *)&rpkt + CTL_HEADER_LEN) =
524 maclen = authencrypt(res_keyid, (u_int32 *)&rpkt,
526 sendpkt(rmt_addr, lcl_inter, -2, (struct pkt *)&rpkt,
527 CTL_HEADER_LEN + maclen);
529 sendpkt(rmt_addr, lcl_inter, -3, (struct pkt *)&rpkt,
537 * process_control - process an incoming control message
541 struct recvbuf *rbufp,
545 register struct ntp_control *pkt;
546 register int req_count;
547 register int req_data;
548 register struct ctl_proc *cc;
554 printf("in process_control()\n");
558 * Save the addresses for error responses
561 rmt_addr = &rbufp->recv_srcadr;
562 lcl_inter = rbufp->dstadr;
563 pkt = (struct ntp_control *)&rbufp->recv_pkt;
566 * If the length is less than required for the header, or
567 * it is a response or a fragment, ignore this.
569 if (rbufp->recv_length < CTL_HEADER_LEN
570 || pkt->r_m_e_op & (CTL_RESPONSE|CTL_MORE|CTL_ERROR)
571 || pkt->offset != 0) {
574 printf("invalid format in control packet\n");
576 if (rbufp->recv_length < CTL_HEADER_LEN)
578 if (pkt->r_m_e_op & CTL_RESPONSE)
580 if (pkt->r_m_e_op & CTL_MORE)
582 if (pkt->r_m_e_op & CTL_ERROR)
584 if (pkt->offset != 0)
588 res_version = PKT_VERSION(pkt->li_vn_mode);
589 if (res_version > NTP_VERSION || res_version < NTP_OLDVERSION) {
592 printf("unknown version %d in control packet\n",
600 * Pull enough data from the packet to make intelligent
603 rpkt.li_vn_mode = PKT_LI_VN_MODE(sys_leap, res_version,
605 res_opcode = pkt->r_m_e_op;
606 rpkt.sequence = pkt->sequence;
607 rpkt.associd = pkt->associd;
610 res_associd = htons(pkt->associd);
612 res_authenticate = 0;
615 req_count = (int)htons(pkt->count);
619 dataend = &(rpkt.data[CTL_MAX_DATA_LEN]);
622 * We're set up now. Make sure we've got at least enough
623 * incoming data space to match the count.
625 req_data = rbufp->recv_length - CTL_HEADER_LEN;
626 if (req_data < req_count || rbufp->recv_length & 0x3) {
627 ctl_error(CERR_BADFMT);
628 numctldatatooshort++;
632 properlen = req_count + CTL_HEADER_LEN;
634 if (debug > 2 && (rbufp->recv_length & 0x3) != 0)
635 printf("Packet length %d unrounded\n",
638 /* round up proper len to a 8 octet boundary */
640 properlen = (properlen + 7) & ~7;
641 maclen = rbufp->recv_length - properlen;
642 if ((rbufp->recv_length & (sizeof(u_long) - 1)) == 0 &&
643 maclen >= MIN_MAC_LEN && maclen <= MAX_MAC_LEN &&
645 res_authenticate = 1;
646 res_keyid = ntohl(*(u_int32 *)((u_char *)pkt +
652 "recv_len %d, properlen %d, wants auth with keyid %08x, MAC length=%d\n",
653 rbufp->recv_length, properlen, res_keyid, maclen);
655 if (!authistrusted(res_keyid)) {
658 printf("invalid keyid %08x\n",
661 } else if (authdecrypt(res_keyid, (u_int32 *)pkt,
662 rbufp->recv_length - maclen, maclen)) {
665 printf("authenticated okay\n");
671 printf("authentication failed\n");
678 * Set up translate pointers
680 reqpt = (char *)pkt->data;
681 reqend = reqpt + req_count;
684 * Look for the opcode processor
686 for (cc = control_codes; cc->control_code != NO_REQUEST; cc++) {
687 if (cc->control_code == res_opcode) {
690 printf("opcode %d, found command handler\n",
693 if (cc->flags == AUTH && (!res_authokay ||
694 res_keyid != ctl_auth_keyid)) {
695 ctl_error(CERR_PERMISSION);
698 (cc->handler)(rbufp, restrict_mask);
704 * Can't find this one, return an error.
707 ctl_error(CERR_BADOP);
713 * ctlpeerstatus - return a status word for this peer
717 register struct peer *peer
720 register u_short status;
722 status = peer->status;
723 if (peer->flags & FLAG_CONFIG)
724 status |= CTL_PST_CONFIG;
725 if (peer->flags & FLAG_AUTHENABLE)
726 status |= CTL_PST_AUTHENABLE;
727 if (peer->flags & FLAG_AUTHENTIC)
728 status |= CTL_PST_AUTHENTIC;
729 if (peer->reach != 0)
730 status |= CTL_PST_REACH;
731 return (u_short)CTL_PEER_STATUS(status, peer->num_events,
737 * ctlclkstatus - return a status word for this clock
742 struct refclockstat *this_clock
745 return ((u_short)(((this_clock->currentstatus) << 8) |
746 (this_clock->lastevent)));
752 * ctlsysstatus - return the system status word
757 register u_char this_clock;
759 this_clock = CTL_SST_TS_UNSPEC;
761 if (sys_peer->sstclktype != CTL_SST_TS_UNSPEC) {
762 this_clock = sys_peer->sstclktype;
764 this_clock |= CTL_SST_TS_PPS;
766 if (sys_peer->refclktype < sizeof(clocktypes))
768 clocktypes[sys_peer->refclktype];
770 this_clock |= CTL_SST_TS_PPS;
773 return (u_short)CTL_SYS_STATUS(sys_leap, this_clock,
774 ctl_sys_num_events, ctl_sys_last_event);
779 * ctl_flushpkt - write out the current packet and prepare
780 * another if necessary.
790 if (!more && datanotbinflag) {
792 * Big hack, output a trailing \r\n
797 dlen = datapt - (u_char *)rpkt.data;
798 sendlen = dlen + CTL_HEADER_LEN;
801 * Pad to a multiple of 32 bits
803 while (sendlen & 0x3) {
809 * Fill in the packet with the current info
811 rpkt.r_m_e_op = (u_char)(CTL_RESPONSE|more|(res_opcode &
813 rpkt.count = htons((u_short) dlen);
814 rpkt.offset = htons( (u_short) res_offset);
818 for (i = 0; i < CTL_MAXTRAPS; i++) {
819 if (ctl_trap[i].tr_flags & TRAP_INUSE) {
821 PKT_LI_VN_MODE(sys_leap,
822 ctl_trap[i].tr_version,
825 htons(ctl_trap[i].tr_sequence);
826 sendpkt(&ctl_trap[i].tr_addr,
827 ctl_trap[i].tr_localaddr, -4,
828 (struct pkt *)&rpkt, sendlen);
830 ctl_trap[i].tr_sequence++;
835 if (res_authenticate && sys_authenticate) {
837 int totlen = sendlen;
838 keyid_t keyid = htonl(res_keyid);
841 * If we are going to authenticate, then there
842 * is an additional requirement that the MAC
843 * begin on a 64 bit boundary.
849 memcpy(datapt, &keyid, sizeof keyid);
850 maclen = authencrypt(res_keyid,
851 (u_int32 *)&rpkt, totlen);
852 sendpkt(rmt_addr, lcl_inter, -5,
853 (struct pkt *)&rpkt, totlen + maclen);
855 sendpkt(rmt_addr, lcl_inter, -6,
856 (struct pkt *)&rpkt, sendlen);
865 * Set us up for another go around.
868 datapt = (u_char *)rpkt.data;
873 * ctl_putdata - write data into the packet, fragmenting and starting
874 * another if this one is full.
880 int bin /* set to 1 when data is binary */
889 if (datapt != rpkt.data) {
892 if ((dlen + datalinelen + 1) >= MAXDATALINELEN)
905 * Save room for trailing junk
907 if (dlen + overhead + datapt > dataend) {
909 * Not enough room in this one, flush it out.
911 ctl_flushpkt(CTL_MORE);
913 memmove((char *)datapt, dp, (unsigned)dlen);
920 * ctl_putstr - write a tagged string into the response packet
930 register const char *cq;
940 if (len > (int) (sizeof(buffer) - (cp - buffer) - 1))
941 len = sizeof(buffer) - (cp - buffer) - 1;
942 memmove(cp, data, (unsigned)len);
946 ctl_putdata(buffer, (unsigned)( cp - buffer ), 0);
951 * ctl_putdbl - write a tagged, signed double into the response packet
960 register const char *cq;
968 (void)sprintf(cp, "%.3f", ts);
971 ctl_putdata(buffer, (unsigned)( cp - buffer ), 0);
975 * ctl_putuint - write a tagged unsigned integer into the response
984 register const char *cq;
993 (void) sprintf(cp, "%lu", uval);
996 ctl_putdata(buffer, (unsigned)( cp - buffer ), 0);
1001 * ctl_puthex - write a tagged unsigned integer, in hex, into the response
1010 register const char *cq;
1019 (void) sprintf(cp, "0x%lx", uval);
1022 ctl_putdata(buffer,(unsigned)( cp - buffer ), 0);
1027 * ctl_putint - write a tagged signed integer into the response
1036 register const char *cq;
1045 (void) sprintf(cp, "%ld", ival);
1048 ctl_putdata(buffer, (unsigned)( cp - buffer ), 0);
1053 * ctl_putts - write a tagged timestamp, in hex, into the response
1062 register const char *cq;
1071 (void) sprintf(cp, "0x%08lx.%08lx", ts->l_ui & 0xffffffffL,
1072 ts->l_uf & 0xffffffffL);
1075 ctl_putdata(buffer, (unsigned)( cp - buffer ), 0);
1080 * ctl_putadr - write an IP address into the response
1086 struct sockaddr_storage* addr
1090 register const char *cq;
1100 cq = numtoa(addr32);
1105 ctl_putdata(buffer, (unsigned)( cp - buffer ), 0);
1110 * ctl_putid - write a tagged clock ID into the response
1119 register const char *cq;
1129 while (*cq != '\0' && (cq - id) < 4)
1131 ctl_putdata(buffer, (unsigned)( cp - buffer ), 0);
1136 * ctl_putarray - write a tagged eight element double array into the response
1146 register const char *cq;
1158 (void)sprintf(cp, " %.2f", arr[i] * 1e3);
1161 } while(i != start);
1162 ctl_putdata(buffer, (unsigned)(cp - buffer), 0);
1167 * ctl_putsys - output a system variable
1177 struct cert_info *cp;
1179 #endif /* OPENSSL */
1184 ctl_putuint(sys_var[CS_LEAP].text, sys_leap);
1188 ctl_putuint(sys_var[CS_STRATUM].text, sys_stratum);
1192 ctl_putint(sys_var[CS_PRECISION].text, sys_precision);
1196 ctl_putdbl(sys_var[CS_ROOTDELAY].text, sys_rootdelay *
1200 case CS_ROOTDISPERSION:
1201 ctl_putdbl(sys_var[CS_ROOTDISPERSION].text,
1202 sys_rootdispersion * 1e3);
1206 if (sys_stratum > 1 && sys_stratum < STRATUM_UNSPEC)
1207 ctl_putadr(sys_var[CS_REFID].text, sys_refid, NULL);
1209 ctl_putid(sys_var[CS_REFID].text,
1210 (char *)&sys_refid);
1214 ctl_putts(sys_var[CS_REFTIME].text, &sys_reftime);
1218 ctl_putuint(sys_var[CS_POLL].text, sys_poll);
1222 if (sys_peer == NULL)
1223 ctl_putuint(sys_var[CS_PEERID].text, 0);
1225 ctl_putuint(sys_var[CS_PEERID].text,
1230 ctl_putuint(sys_var[CS_STATE].text, (unsigned)state);
1234 ctl_putdbl(sys_var[CS_OFFSET].text, last_offset * 1e3);
1238 ctl_putdbl(sys_var[CS_DRIFT].text, drift_comp * 1e6);
1242 ctl_putdbl(sys_var[CS_JITTER].text, sys_jitter * 1e3);
1247 ctl_putts(sys_var[CS_CLOCK].text, &tmp);
1252 ctl_putstr(sys_var[CS_PROCESSOR].text, str_processor,
1253 sizeof(str_processor) - 1);
1255 ctl_putstr(sys_var[CS_PROCESSOR].text,
1256 utsnamebuf.machine, strlen(utsnamebuf.machine));
1257 #endif /* HAVE_UNAME */
1262 ctl_putstr(sys_var[CS_SYSTEM].text, str_system,
1263 sizeof(str_system) - 1);
1265 sprintf(str, "%s/%s", utsnamebuf.sysname, utsnamebuf.release);
1266 ctl_putstr(sys_var[CS_SYSTEM].text, str, strlen(str));
1267 #endif /* HAVE_UNAME */
1271 ctl_putstr(sys_var[CS_VERSION].text, Version,
1276 ctl_putdbl(sys_var[CS_STABIL].text, clock_stability *
1282 char buf[CTL_MAX_DATA_LEN];
1283 register char *s, *t, *be;
1284 register const char *ss;
1286 register struct ctl_var *k;
1289 be = buf + sizeof(buf) -
1290 strlen(sys_var[CS_VARLIST].text) - 4;
1292 break; /* really long var name */
1294 strcpy(s, sys_var[CS_VARLIST].text);
1298 for (k = sys_var; !(k->flags &EOV); k++) {
1299 if (k->flags & PADDING)
1301 i = strlen(k->text);
1311 for (k = ext_sys_var; k && !(k->flags &EOV);
1313 if (k->flags & PADDING)
1320 while (*ss && *ss != '=')
1323 if (s + i + 1 >= be)
1338 ctl_putdata(buf, (unsigned)( s - buf ),
1346 ctl_puthex(sys_var[CS_FLAGS].text, crypto_flags);
1354 dp = EVP_get_digestbynid(crypto_flags >> 16);
1355 strcpy(str, OBJ_nid2ln(EVP_MD_pkey_type(dp)));
1356 ctl_putstr(sys_var[CS_DIGEST].text, str,
1362 if (sys_hostname != NULL)
1363 ctl_putstr(sys_var[CS_HOST].text, sys_hostname,
1364 strlen(sys_hostname));
1368 for (cp = cinfo; cp != NULL; cp = cp->link) {
1369 sprintf(cbuf, "%s %s 0x%x %u", cp->subject,
1370 cp->issuer, cp->flags,
1371 ntohl(cp->cert.fstamp));
1372 ctl_putstr(sys_var[CS_CERTIF].text, cbuf,
1378 if (hostval.fstamp != 0)
1379 ctl_putuint(sys_var[CS_PUBLIC].text,
1380 ntohl(hostval.fstamp));
1384 if (hostval.tstamp != 0)
1385 ctl_putuint(sys_var[CS_REVTIME].text,
1386 ntohl(hostval.tstamp));
1390 if (tai_leap.fstamp != 0)
1391 ctl_putuint(sys_var[CS_LEAPTAB].text,
1392 ntohl(tai_leap.fstamp));
1394 ctl_putuint(sys_var[CS_TAI].text, sys_tai);
1396 #endif /* OPENSSL */
1402 * ctl_putpeer - output a peer variable
1413 #endif /* OPENSSL */
1418 ctl_putuint(peer_var[CP_CONFIG].text,
1419 (unsigned)((peer->flags & FLAG_CONFIG) != 0));
1423 ctl_putuint(peer_var[CP_AUTHENABLE].text,
1424 (unsigned)((peer->flags & FLAG_AUTHENABLE) != 0));
1428 ctl_putuint(peer_var[CP_AUTHENTIC].text,
1429 (unsigned)((peer->flags & FLAG_AUTHENTIC) != 0));
1433 ctl_putadr(peer_var[CP_SRCADR].text, 0,
1438 ctl_putuint(peer_var[CP_SRCPORT].text,
1439 ntohs(((struct sockaddr_in*)&peer->srcadr)->sin_port));
1443 ctl_putadr(peer_var[CP_DSTADR].text, 0,
1444 &(peer->dstadr->sin));
1448 ctl_putuint(peer_var[CP_DSTPORT].text,
1449 (u_long)(peer->dstadr ?
1450 ntohs(((struct sockaddr_in*)&peer->dstadr->sin)->sin_port) : 0));
1454 ctl_putuint(peer_var[CP_LEAP].text, peer->leap);
1458 ctl_putuint(peer_var[CP_HMODE].text, peer->hmode);
1462 ctl_putuint(peer_var[CP_STRATUM].text, peer->stratum);
1466 ctl_putuint(peer_var[CP_PPOLL].text, peer->ppoll);
1470 ctl_putuint(peer_var[CP_HPOLL].text, peer->hpoll);
1474 ctl_putint(peer_var[CP_PRECISION].text,
1479 ctl_putdbl(peer_var[CP_ROOTDELAY].text,
1480 peer->rootdelay * 1e3);
1483 case CP_ROOTDISPERSION:
1484 ctl_putdbl(peer_var[CP_ROOTDISPERSION].text,
1485 peer->rootdispersion * 1e3);
1489 if (peer->flags & FLAG_REFCLOCK) {
1490 if (peer->stratum > 0 && peer->stratum <
1492 ctl_putadr(peer_var[CP_REFID].text,
1495 ctl_putid(peer_var[CP_REFID].text,
1496 (char *)&peer->refid);
1498 if (peer->stratum > 1 && peer->stratum <
1500 ctl_putadr(peer_var[CP_REFID].text,
1503 ctl_putid(peer_var[CP_REFID].text,
1504 (char *)&peer->refid);
1509 ctl_putts(peer_var[CP_REFTIME].text, &peer->reftime);
1513 ctl_putts(peer_var[CP_ORG].text, &peer->org);
1517 ctl_putts(peer_var[CP_REC].text, &peer->rec);
1521 ctl_putts(peer_var[CP_XMT].text, &peer->xmt);
1525 ctl_puthex(peer_var[CP_REACH].text, peer->reach);
1529 ctl_puthex(peer_var[CP_FLASH].text, peer->flash);
1533 ctl_putint(peer_var[CP_TTL].text, sys_ttl[peer->ttl]);
1537 ctl_putuint(peer_var[CP_VALID].text, peer->unreach);
1541 ctl_putuint(peer_var[CP_RANK].text, peer->rank);
1545 ctl_putuint(peer_var[CP_TIMER].text,
1546 peer->nextdate - current_time);
1550 ctl_putdbl(peer_var[CP_DELAY].text, peer->delay * 1e3);
1554 ctl_putdbl(peer_var[CP_OFFSET].text, peer->offset *
1559 ctl_putdbl(peer_var[CP_JITTER].text,
1560 SQRT(peer->jitter) * 1e3);
1564 ctl_putdbl(peer_var[CP_DISPERSION].text, peer->disp *
1569 ctl_putuint(peer_var[CP_KEYID].text, peer->keyid);
1573 ctl_putarray(peer_var[CP_FILTDELAY].text,
1574 peer->filter_delay, (int)peer->filter_nextpt);
1578 ctl_putarray(peer_var[CP_FILTOFFSET].text,
1579 peer->filter_offset, (int)peer->filter_nextpt);
1583 ctl_putarray(peer_var[CP_FILTERROR].text,
1584 peer->filter_disp, (int)peer->filter_nextpt);
1588 ctl_putuint(peer_var[CP_PMODE].text, peer->pmode);
1592 ctl_putuint(peer_var[CP_RECEIVED].text, peer->received);
1596 ctl_putuint(peer_var[CP_SENT].text, peer->sent);
1601 char buf[CTL_MAX_DATA_LEN];
1602 register char *s, *t, *be;
1604 register struct ctl_var *k;
1607 be = buf + sizeof(buf) -
1608 strlen(peer_var[CP_VARLIST].text) - 4;
1610 break; /* really long var name */
1612 strcpy(s, peer_var[CP_VARLIST].text);
1616 for (k = peer_var; !(k->flags &EOV); k++) {
1617 if (k->flags & PADDING)
1620 i = strlen(k->text);
1621 if (s + i + 1 >= be)
1634 ctl_putdata(buf, (unsigned)(s - buf), 0);
1640 ctl_puthex(peer_var[CP_FLAGS].text, peer->crypto);
1647 dp = EVP_get_digestbynid(peer->crypto >> 16);
1648 strcpy(str, OBJ_nid2ln(EVP_MD_pkey_type(dp)));
1649 ctl_putstr(peer_var[CP_DIGEST].text, str,
1655 if (peer->subject != NULL)
1656 ctl_putstr(peer_var[CP_HOST].text, peer->subject,
1657 strlen(peer->subject));
1661 if (peer->issuer != NULL)
1662 ctl_putstr(peer_var[CP_IDENT].text, peer->issuer,
1663 strlen(peer->issuer));
1667 if ((ap = (struct autokey *)peer->recval.ptr) == NULL)
1669 ctl_putint(peer_var[CP_INITSEQ].text, ap->seq);
1670 ctl_puthex(peer_var[CP_INITKEY].text, ap->key);
1671 ctl_putuint(peer_var[CP_INITTSP].text,
1672 ntohl(peer->recval.tstamp));
1674 #endif /* OPENSSL */
1681 * ctl_putclock - output clock variables
1686 struct refclockstat *clock_stat,
1693 if (mustput || clock_stat->clockdesc == NULL
1694 || *(clock_stat->clockdesc) == '\0') {
1695 ctl_putuint(clock_var[CC_TYPE].text, clock_stat->type);
1699 ctl_putstr(clock_var[CC_TIMECODE].text,
1700 clock_stat->p_lastcode,
1701 (unsigned)clock_stat->lencode);
1705 ctl_putuint(clock_var[CC_POLL].text, clock_stat->polls);
1709 ctl_putuint(clock_var[CC_NOREPLY].text,
1710 clock_stat->noresponse);
1714 ctl_putuint(clock_var[CC_BADFORMAT].text,
1715 clock_stat->badformat);
1719 ctl_putuint(clock_var[CC_BADDATA].text,
1720 clock_stat->baddata);
1724 if (mustput || (clock_stat->haveflags & CLK_HAVETIME1))
1725 ctl_putdbl(clock_var[CC_FUDGETIME1].text,
1726 clock_stat->fudgetime1 * 1e3);
1730 if (mustput || (clock_stat->haveflags & CLK_HAVETIME2)) ctl_putdbl(clock_var[CC_FUDGETIME2].text,
1731 clock_stat->fudgetime2 * 1e3);
1735 if (mustput || (clock_stat->haveflags & CLK_HAVEVAL1))
1736 ctl_putint(clock_var[CC_FUDGEVAL1].text,
1737 clock_stat->fudgeval1);
1741 if (mustput || (clock_stat->haveflags & CLK_HAVEVAL2)) {
1742 if (clock_stat->fudgeval1 > 1)
1743 ctl_putadr(clock_var[CC_FUDGEVAL2].text,
1744 (u_int32)clock_stat->fudgeval2, NULL);
1746 ctl_putid(clock_var[CC_FUDGEVAL2].text,
1747 (char *)&clock_stat->fudgeval2);
1752 if (mustput || (clock_stat->haveflags & (CLK_HAVEFLAG1 |
1753 CLK_HAVEFLAG2 | CLK_HAVEFLAG3 | CLK_HAVEFLAG4)))
1754 ctl_putuint(clock_var[CC_FLAGS].text,
1759 if (clock_stat->clockdesc == NULL ||
1760 *(clock_stat->clockdesc) == '\0') {
1762 ctl_putstr(clock_var[CC_DEVICE].text,
1765 ctl_putstr(clock_var[CC_DEVICE].text,
1766 clock_stat->clockdesc,
1767 strlen(clock_stat->clockdesc));
1773 char buf[CTL_MAX_DATA_LEN];
1774 register char *s, *t, *be;
1775 register const char *ss;
1777 register struct ctl_var *k;
1780 be = buf + sizeof(buf);
1781 if (s + strlen(clock_var[CC_VARLIST].text) + 4 >
1783 break; /* really long var name */
1785 strcpy(s, clock_var[CC_VARLIST].text);
1790 for (k = clock_var; !(k->flags &EOV); k++) {
1791 if (k->flags & PADDING)
1794 i = strlen(k->text);
1795 if (s + i + 1 >= be)
1804 for (k = clock_stat->kv_list; k && !(k->flags &
1806 if (k->flags & PADDING)
1813 while (*ss && *ss != '=')
1821 strncpy(s, k->text, (unsigned)i);
1830 ctl_putdata(buf, (unsigned)( s - buf ), 0);
1840 * ctl_getitem - get the next data item from the incoming packet
1842 static struct ctl_var *
1844 struct ctl_var *var_list,
1848 register struct ctl_var *v;
1851 static struct ctl_var eol = { 0, EOV, };
1852 static char buf[128];
1855 * Delete leading commas and white space
1857 while (reqpt < reqend && (*reqpt == ',' ||
1858 isspace((unsigned char)*reqpt)))
1860 if (reqpt >= reqend)
1863 if (var_list == (struct ctl_var *)0)
1867 * Look for a first character match on the tag. If we find
1868 * one, see if it is a full match.
1872 while (!(v->flags & EOV)) {
1873 if (!(v->flags & PADDING) && *cp == *(v->text)) {
1875 while (*tp != '\0' && *tp != '=' && cp <
1876 reqend && *cp == *tp) {
1880 if ((*tp == '\0') || (*tp == '=')) {
1881 while (cp < reqend && isspace((unsigned char)*cp))
1883 if (cp == reqend || *cp == ',') {
1894 while (cp < reqend && isspace((unsigned char)*cp))
1896 while (cp < reqend && *cp != ',') {
1898 if (tp >= buf + sizeof(buf))
1905 if (!isspace((unsigned char)(*tp)))
1923 * control_unspec - response to an unspecified op-code
1928 struct recvbuf *rbufp,
1935 * What is an appropriate response to an unspecified op-code?
1936 * I return no errors and no data, unless a specified assocation
1939 if (res_associd != 0) {
1940 if ((peer = findpeerbyassoc(res_associd)) == 0) {
1941 ctl_error(CERR_BADASSOC);
1944 rpkt.status = htons(ctlpeerstatus(peer));
1946 rpkt.status = htons(ctlsysstatus());
1953 * read_status - return either a list of associd's, or a particular
1959 struct recvbuf *rbufp,
1964 register struct peer *peer;
1965 u_short ass_stat[CTL_MAX_DATA_LEN / sizeof(u_short)];
1969 printf("read_status: ID %d\n", res_associd);
1972 * Two choices here. If the specified association ID is
1973 * zero we return all known assocation ID's. Otherwise
1974 * we return a bunch of stuff about the particular peer.
1976 if (res_associd == 0) {
1980 rpkt.status = htons(ctlsysstatus());
1981 for (i = 0; i < HASH_SIZE; i++) {
1982 for (peer = assoc_hash[i]; peer != 0;
1983 peer = peer->ass_next) {
1984 ass_stat[n++] = htons(peer->associd);
1986 htons(ctlpeerstatus(peer));
1988 CTL_MAX_DATA_LEN/sizeof(u_short)) {
1989 ctl_putdata((char *)ass_stat,
1990 n * sizeof(u_short), 1);
1997 ctl_putdata((char *)ass_stat, n *
1998 sizeof(u_short), 1);
2001 peer = findpeerbyassoc(res_associd);
2003 ctl_error(CERR_BADASSOC);
2005 register u_char *cp;
2007 rpkt.status = htons(ctlpeerstatus(peer));
2009 peer->num_events = 0;
2011 * For now, output everything we know about the
2012 * peer. May be more selective later.
2014 for (cp = def_peer_var; *cp != 0; cp++)
2015 ctl_putpeer((int)*cp, peer);
2023 * read_variables - return the variables the caller asks for
2028 struct recvbuf *rbufp,
2032 register struct ctl_var *v;
2036 unsigned int gotvar = (CS_MAXCODE > CP_MAXCODE) ? (CS_MAXCODE +
2037 1) : (CP_MAXCODE + 1);
2038 if (res_associd == 0) {
2040 * Wants system variables. Figure out which he wants
2041 * and give them to him.
2043 rpkt.status = htons(ctlsysstatus());
2045 ctl_sys_num_events = 0;
2046 gotvar += count_var(ext_sys_var);
2047 wants = (u_char *)emalloc(gotvar);
2048 memset((char *)wants, 0, gotvar);
2050 while ((v = ctl_getitem(sys_var, &valuep)) != 0) {
2051 if (v->flags & EOV) {
2052 if ((v = ctl_getitem(ext_sys_var,
2054 if (v->flags & EOV) {
2055 ctl_error(CERR_UNKNOWNVAR);
2056 free((char *)wants);
2059 wants[CS_MAXCODE + 1 +
2064 break; /* shouldn't happen ! */
2071 for (i = 1; i <= CS_MAXCODE; i++)
2074 for (i = 0; ext_sys_var &&
2075 !(ext_sys_var[i].flags & EOV); i++)
2076 if (wants[i + CS_MAXCODE + 1])
2077 ctl_putdata(ext_sys_var[i].text,
2078 strlen(ext_sys_var[i].text),
2081 register u_char *cs;
2082 register struct ctl_var *kv;
2084 for (cs = def_sys_var; *cs != 0; cs++)
2085 ctl_putsys((int)*cs);
2086 for (kv = ext_sys_var; kv && !(kv->flags & EOV);
2088 if (kv->flags & DEF)
2089 ctl_putdata(kv->text,
2090 strlen(kv->text), 0);
2092 free((char *)wants);
2094 register struct peer *peer;
2097 * Wants info for a particular peer. See if we know
2100 peer = findpeerbyassoc(res_associd);
2102 ctl_error(CERR_BADASSOC);
2105 rpkt.status = htons(ctlpeerstatus(peer));
2107 peer->num_events = 0;
2108 wants = (u_char *)emalloc(gotvar);
2109 memset((char*)wants, 0, gotvar);
2111 while ((v = ctl_getitem(peer_var, &valuep)) != 0) {
2112 if (v->flags & EOV) {
2113 ctl_error(CERR_UNKNOWNVAR);
2114 free((char *)wants);
2121 for (i = 1; i <= CP_MAXCODE; i++)
2123 ctl_putpeer(i, peer);
2125 register u_char *cp;
2127 for (cp = def_peer_var; *cp != 0; cp++)
2128 ctl_putpeer((int)*cp, peer);
2130 free((char *)wants);
2137 * write_variables - write into variables. We only allow leap bit
2143 struct recvbuf *rbufp,
2147 register struct ctl_var *v;
2148 register int ext_var;
2153 * If he's trying to write into a peer tell him no way
2155 if (res_associd != 0) {
2156 ctl_error(CERR_PERMISSION);
2163 rpkt.status = htons(ctlsysstatus());
2166 * Look through the variables. Dump out at the first sign of
2169 while ((v = ctl_getitem(sys_var, &valuep)) != 0) {
2171 if (v->flags & EOV) {
2172 if ((v = ctl_getitem(ext_sys_var, &valuep)) !=
2174 if (v->flags & EOV) {
2175 ctl_error(CERR_UNKNOWNVAR);
2183 if (!(v->flags & CAN_WRITE)) {
2184 ctl_error(CERR_PERMISSION);
2187 if (!ext_var && (*valuep == '\0' || !atoint(valuep,
2189 ctl_error(CERR_BADFMT);
2192 if (!ext_var && (val & ~LEAP_NOTINSYNC) != 0) {
2193 ctl_error(CERR_BADVALUE);
2198 char *s = (char *)emalloc(strlen(v->text) +
2199 strlen(valuep) + 2);
2204 while (*t && *t != '=')
2209 set_sys_var(s, strlen(s)+1, v->flags);
2213 * This one seems sane. Save it.
2219 ctl_error(CERR_UNSPEC); /* really */
2226 * If we got anything, do it. xxx nothing to do ***
2229 if (leapind != ~0 || leapwarn != ~0) {
2230 if (!leap_setleap((int)leapind, (int)leapwarn)) {
2231 ctl_error(CERR_PERMISSION);
2241 * read_clock_status - return clock radio status
2246 struct recvbuf *rbufp,
2252 * If no refclock support, no data to return
2254 ctl_error(CERR_BADASSOC);
2256 register struct ctl_var *v;
2258 register struct peer *peer;
2261 unsigned int gotvar;
2262 struct refclockstat clock_stat;
2264 if (res_associd == 0) {
2267 * Find a clock for this jerk. If the system peer
2268 * is a clock use it, else search the hash tables
2271 if (sys_peer != 0 && (sys_peer->flags & FLAG_REFCLOCK))
2276 for (i = 0; peer == 0 && i < HASH_SIZE; i++) {
2277 for (peer = assoc_hash[i]; peer != 0;
2278 peer = peer->ass_next) {
2279 if (peer->flags & FLAG_REFCLOCK)
2284 ctl_error(CERR_BADASSOC);
2289 peer = findpeerbyassoc(res_associd);
2290 if (peer == 0 || !(peer->flags & FLAG_REFCLOCK)) {
2291 ctl_error(CERR_BADASSOC);
2297 * If we got here we have a peer which is a clock. Get his
2300 clock_stat.kv_list = (struct ctl_var *)0;
2301 refclock_control(&peer->srcadr, (struct refclockstat *)0,
2305 * Look for variables in the packet.
2307 rpkt.status = htons(ctlclkstatus(&clock_stat));
2308 gotvar = CC_MAXCODE + 1 + count_var(clock_stat.kv_list);
2309 wants = (u_char *)emalloc(gotvar);
2310 memset((char*)wants, 0, gotvar);
2312 while ((v = ctl_getitem(clock_var, &valuep)) != 0) {
2313 if (v->flags & EOV) {
2314 if ((v = ctl_getitem(clock_stat.kv_list,
2316 if (v->flags & EOV) {
2317 ctl_error(CERR_UNKNOWNVAR);
2319 free_varlist(clock_stat.kv_list);
2322 wants[CC_MAXCODE + 1 + v->code] = 1;
2326 break; /* shouldn't happen ! */
2334 for (i = 1; i <= CC_MAXCODE; i++)
2336 ctl_putclock(i, &clock_stat, 1);
2337 for (i = 0; clock_stat.kv_list &&
2338 !(clock_stat.kv_list[i].flags & EOV); i++)
2339 if (wants[i + CC_MAXCODE + 1])
2340 ctl_putdata(clock_stat.kv_list[i].text,
2341 strlen(clock_stat.kv_list[i].text),
2344 register u_char *cc;
2345 register struct ctl_var *kv;
2347 for (cc = def_clock_var; *cc != 0; cc++)
2348 ctl_putclock((int)*cc, &clock_stat, 0);
2349 for (kv = clock_stat.kv_list; kv && !(kv->flags & EOV);
2351 if (kv->flags & DEF)
2352 ctl_putdata(kv->text, strlen(kv->text),
2357 free_varlist(clock_stat.kv_list);
2365 * write_clock_status - we don't do this
2370 struct recvbuf *rbufp,
2374 ctl_error(CERR_PERMISSION);
2378 * Trap support from here on down. We send async trap messages when the
2379 * upper levels report trouble. Traps can by set either by control
2380 * messages or by configuration.
2383 * set_trap - set a trap in response to a control message
2387 struct recvbuf *rbufp,
2394 * See if this guy is allowed
2396 if (restrict_mask & RES_NOTRAP) {
2397 ctl_error(CERR_PERMISSION);
2402 * Determine his allowed trap type.
2404 traptype = TRAP_TYPE_PRIO;
2405 if (restrict_mask & RES_LPTRAP)
2406 traptype = TRAP_TYPE_NONPRIO;
2409 * Call ctlsettrap() to do the work. Return
2410 * an error if it can't assign the trap.
2412 if (!ctlsettrap(&rbufp->recv_srcadr, rbufp->dstadr, traptype,
2414 ctl_error(CERR_NORESOURCE);
2420 * unset_trap - unset a trap in response to a control message
2424 struct recvbuf *rbufp,
2431 * We don't prevent anyone from removing his own trap unless the
2432 * trap is configured. Note we also must be aware of the
2433 * possibility that restriction flags were changed since this
2434 * guy last set his trap. Set the trap type based on this.
2436 traptype = TRAP_TYPE_PRIO;
2437 if (restrict_mask & RES_LPTRAP)
2438 traptype = TRAP_TYPE_NONPRIO;
2441 * Call ctlclrtrap() to clear this out.
2443 if (!ctlclrtrap(&rbufp->recv_srcadr, rbufp->dstadr, traptype))
2444 ctl_error(CERR_BADASSOC);
2450 * ctlsettrap - called to set a trap
2454 struct sockaddr_storage *raddr,
2455 struct interface *linter,
2460 register struct ctl_trap *tp;
2461 register struct ctl_trap *tptouse;
2464 * See if we can find this trap. If so, we only need update
2465 * the flags and the time.
2467 if ((tp = ctlfindtrap(raddr, linter)) != NULL) {
2470 case TRAP_TYPE_CONFIG:
2471 tp->tr_flags = TRAP_INUSE|TRAP_CONFIGURED;
2474 case TRAP_TYPE_PRIO:
2475 if (tp->tr_flags & TRAP_CONFIGURED)
2476 return (1); /* don't change anything */
2477 tp->tr_flags = TRAP_INUSE;
2480 case TRAP_TYPE_NONPRIO:
2481 if (tp->tr_flags & TRAP_CONFIGURED)
2482 return (1); /* don't change anything */
2483 tp->tr_flags = TRAP_INUSE|TRAP_NONPRIO;
2486 tp->tr_settime = current_time;
2492 * First we heard of this guy. Try to find a trap structure
2493 * for him to use, clearing out lesser priority guys if we
2494 * have to. Clear out anyone who's expired while we're at it.
2497 for (tp = ctl_trap; tp < &ctl_trap[CTL_MAXTRAPS]; tp++) {
2498 if ((tp->tr_flags & TRAP_INUSE) &&
2499 !(tp->tr_flags & TRAP_CONFIGURED) &&
2500 ((tp->tr_settime + CTL_TRAPTIME) > current_time)) {
2504 if (!(tp->tr_flags & TRAP_INUSE)) {
2506 } else if (!(tp->tr_flags & TRAP_CONFIGURED)) {
2509 case TRAP_TYPE_CONFIG:
2510 if (tptouse == NULL) {
2514 if (tptouse->tr_flags & TRAP_NONPRIO &&
2515 !(tp->tr_flags & TRAP_NONPRIO))
2518 if (!(tptouse->tr_flags & TRAP_NONPRIO)
2519 && tp->tr_flags & TRAP_NONPRIO) {
2523 if (tptouse->tr_origtime <
2528 case TRAP_TYPE_PRIO:
2529 if (tp->tr_flags & TRAP_NONPRIO) {
2530 if (tptouse == NULL ||
2531 (tptouse->tr_flags &
2533 tptouse->tr_origtime <
2539 case TRAP_TYPE_NONPRIO:
2546 * If we don't have room for him return an error.
2548 if (tptouse == NULL)
2552 * Set up this structure for him.
2554 tptouse->tr_settime = tptouse->tr_origtime = current_time;
2555 tptouse->tr_count = tptouse->tr_resets = 0;
2556 tptouse->tr_sequence = 1;
2557 tptouse->tr_addr = *raddr;
2558 tptouse->tr_localaddr = linter;
2559 tptouse->tr_version = (u_char) version;
2560 tptouse->tr_flags = TRAP_INUSE;
2561 if (traptype == TRAP_TYPE_CONFIG)
2562 tptouse->tr_flags |= TRAP_CONFIGURED;
2563 else if (traptype == TRAP_TYPE_NONPRIO)
2564 tptouse->tr_flags |= TRAP_NONPRIO;
2571 * ctlclrtrap - called to clear a trap
2575 struct sockaddr_storage *raddr,
2576 struct interface *linter,
2580 register struct ctl_trap *tp;
2582 if ((tp = ctlfindtrap(raddr, linter)) == NULL)
2585 if (tp->tr_flags & TRAP_CONFIGURED
2586 && traptype != TRAP_TYPE_CONFIG)
2596 * ctlfindtrap - find a trap given the remote and local addresses
2598 static struct ctl_trap *
2600 struct sockaddr_storage *raddr,
2601 struct interface *linter
2604 register struct ctl_trap *tp;
2606 for (tp = ctl_trap; tp < &ctl_trap[CTL_MAXTRAPS]; tp++) {
2607 if ((tp->tr_flags & TRAP_INUSE)
2608 && (NSRCPORT(raddr) == NSRCPORT(&tp->tr_addr))
2609 && SOCKCMP(raddr, &tp->tr_addr)
2610 && (linter == tp->tr_localaddr) )
2613 return (struct ctl_trap *)NULL;
2618 * report_event - report an event to the trappers
2629 * Record error code in proper spots, but have mercy on the
2632 if (!(err & (PEER_EVENT | CRPT_EVENT))) {
2633 if (ctl_sys_num_events < CTL_SYS_MAXEVENTS)
2634 ctl_sys_num_events++;
2635 if (ctl_sys_last_event != (u_char)err) {
2637 msyslog(LOG_INFO, "system event '%s' (0x%02x) status '%s' (0x%02x)",
2639 sysstatstr(ctlsysstatus()), ctlsysstatus());
2642 printf("report_event: system event '%s' (0x%02x) status '%s' (0x%02x)\n",
2644 sysstatstr(ctlsysstatus()),
2647 ctl_sys_last_event = (u_char)err;
2649 } else if (peer != 0) {
2653 if (ISREFCLOCKADR(&peer->srcadr))
2654 src = refnumtoa(&peer->srcadr);
2657 src = stoa(&peer->srcadr);
2659 peer->last_event = (u_char)(err & ~PEER_EVENT);
2660 if (peer->num_events < CTL_PEER_MAXEVENTS)
2662 NLOG(NLOG_PEEREVENT)
2663 msyslog(LOG_INFO, "peer %s event '%s' (0x%02x) status '%s' (0x%02x)",
2664 src, eventstr(err), err,
2665 peerstatstr(ctlpeerstatus(peer)),
2666 ctlpeerstatus(peer));
2669 printf( "peer %s event '%s' (0x%02x) status '%s' (0x%02x)\n",
2670 src, eventstr(err), err,
2671 peerstatstr(ctlpeerstatus(peer)),
2672 ctlpeerstatus(peer));
2676 "report_event: err '%s' (0x%02x), no peer",
2677 eventstr(err), err);
2680 "report_event: peer event '%s' (0x%02x), no peer\n",
2681 eventstr(err), err);
2687 * If no trappers, return.
2689 if (num_ctl_traps <= 0)
2693 * Set up the outgoing packet variables
2695 res_opcode = CTL_OP_ASYNCMSG;
2698 res_authenticate = 0;
2700 dataend = &(rpkt.data[CTL_MAX_DATA_LEN]);
2701 if (!(err & PEER_EVENT)) {
2703 rpkt.status = htons(ctlsysstatus());
2706 * For now, put everything we know about system
2707 * variables. Don't send crypto strings.
2709 for (i = 1; i <= CS_MAXCODE; i++) {
2713 #endif /* OPENSSL */
2718 * for clock exception events: add clock variables to
2719 * reflect info on exception
2721 if (err == EVNT_CLOCKEXCPT) {
2722 struct refclockstat clock_stat;
2725 clock_stat.kv_list = (struct ctl_var *)0;
2726 refclock_control(&peer->srcadr,
2727 (struct refclockstat *)0, &clock_stat);
2728 ctl_puthex("refclockstatus",
2729 ctlclkstatus(&clock_stat));
2730 for (i = 1; i <= CC_MAXCODE; i++)
2731 ctl_putclock(i, &clock_stat, 0);
2732 for (kv = clock_stat.kv_list; kv &&
2733 !(kv->flags & EOV); kv++)
2734 if (kv->flags & DEF)
2735 ctl_putdata(kv->text,
2736 strlen(kv->text), 0);
2737 free_varlist(clock_stat.kv_list);
2739 #endif /* REFCLOCK */
2741 rpkt.associd = htons(peer->associd);
2742 rpkt.status = htons(ctlpeerstatus(peer));
2745 * Dump it all. Later, maybe less.
2747 for (i = 1; i <= CP_MAXCODE; i++) {
2751 #endif /* OPENSSL */
2752 ctl_putpeer(i, peer);
2756 * for clock exception events: add clock variables to
2757 * reflect info on exception
2759 if (err == EVNT_PEERCLOCK) {
2760 struct refclockstat clock_stat;
2763 clock_stat.kv_list = (struct ctl_var *)0;
2764 refclock_control(&peer->srcadr,
2765 (struct refclockstat *)0, &clock_stat);
2767 ctl_puthex("refclockstatus",
2768 ctlclkstatus(&clock_stat));
2770 for (i = 1; i <= CC_MAXCODE; i++)
2771 ctl_putclock(i, &clock_stat, 0);
2772 for (kv = clock_stat.kv_list; kv &&
2773 !(kv->flags & EOV); kv++)
2774 if (kv->flags & DEF)
2775 ctl_putdata(kv->text,
2776 strlen(kv->text), 0);
2777 free_varlist(clock_stat.kv_list);
2779 #endif /* REFCLOCK */
2783 * We're done, return.
2790 * ctl_clr_stats - clear stat counters
2795 ctltimereset = current_time;
2798 numctlresponses = 0;
2803 numctlinputresp = 0;
2804 numctlinputfrag = 0;
2806 numctlbadoffset = 0;
2807 numctlbadversion = 0;
2808 numctldatatooshort = 0;
2824 while (!(k++->flags & EOV))
2831 struct ctl_var **kv,
2837 register struct ctl_var *k;
2842 *kv = (struct ctl_var *)emalloc((c+2)*sizeof(struct ctl_var));
2844 memmove((char *)*kv, (char *)k,
2845 sizeof(struct ctl_var)*c);
2848 (*kv)[c].code = (u_short) c;
2849 (*kv)[c].text = (char *)emalloc(size);
2850 (*kv)[c].flags = def;
2851 (*kv)[c+1].code = 0;
2852 (*kv)[c+1].text = (char *)0;
2853 (*kv)[c+1].flags = EOV;
2854 return (char *)(*kv)[c].text;
2859 struct ctl_var **kv,
2865 register struct ctl_var *k;
2866 register const char *s;
2867 register const char *t;
2875 while (!(k->flags & EOV)) {
2879 while (*t != '=' && *s - *t == 0) {
2883 if (*s == *t && ((*t == '=') || !*t)) {
2884 free((void *)k->text);
2885 td = (char *)emalloc(size);
2886 memmove(td, data, size);
2892 td = (char *)emalloc(size);
2893 memmove(td, data, size);
2901 td = add_var(kv, size, def);
2902 memmove(td, data, size);
2912 set_var(&ext_sys_var, data, size, def);
2922 for (k = kv; !(k->flags & EOV); k++)
2923 free((void *)k->text);