forked from mlichvar/chrony
-
Notifications
You must be signed in to change notification settings - Fork 0
/
conf.c
2607 lines (2143 loc) · 64.1 KB
/
conf.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
chronyd/chronyc - Programs for keeping computer clocks accurate.
**********************************************************************
* Copyright (C) Richard P. Curnow 1997-2003
* Copyright (C) Miroslav Lichvar 2009-2017, 2020
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
**********************************************************************
=======================================================================
Module that reads and processes the configuration file.
*/
#include "config.h"
#include "sysincl.h"
#include "array.h"
#include "conf.h"
#include "ntp_sources.h"
#include "ntp_core.h"
#include "nts_ke.h"
#include "refclock.h"
#include "cmdmon.h"
#include "socket.h"
#include "srcparams.h"
#include "logging.h"
#include "nameserv.h"
#include "memory.h"
#include "cmdparse.h"
#include "util.h"
/* ================================================== */
#define MAX_LINE_LENGTH 2048
#define MAX_CONF_DIRS 10
#define MAX_INCLUDE_LEVEL 10
/* ================================================== */
/* Forward prototypes */
static int parse_string(char *line, char **result);
static int parse_int(char *line, int *result);
static int parse_double(char *line, double *result);
static int parse_null(char *line);
static void parse_allow_deny(char *line, ARR_Instance restrictions, int allow);
static void parse_authselectmode(char *);
static void parse_bindacqaddress(char *);
static void parse_bindaddress(char *);
static void parse_bindcmdaddress(char *);
static void parse_broadcast(char *);
static void parse_clientloglimit(char *);
static void parse_confdir(char *);
static void parse_fallbackdrift(char *);
static void parse_hwtimestamp(char *);
static void parse_include(char *);
static void parse_initstepslew(char *);
static void parse_leapsecmode(char *);
static void parse_local(char *);
static void parse_log(char *);
static void parse_mailonchange(char *);
static void parse_makestep(char *);
static void parse_maxchange(char *);
static void parse_ntsserver(char *, ARR_Instance files);
static void parse_ntstrustedcerts(char *);
static void parse_ratelimit(char *line, int *enabled, int *interval,
int *burst, int *leak);
static void parse_refclock(char *);
static void parse_smoothtime(char *);
static void parse_source(char *line, char *type, int fatal);
static void parse_sourcedir(char *);
static void parse_tempcomp(char *);
/* ================================================== */
/* Configuration variables */
static int print_config = 0;
static int restarted = 0;
static char *rtc_device;
static int acquisition_port = -1;
static int ntp_port = NTP_PORT;
static char *keys_file = NULL;
static char *drift_file = NULL;
static char *rtc_file = NULL;
static double max_update_skew = 1000.0;
static double correction_time_ratio = 3.0;
static double max_clock_error = 1.0; /* in ppm */
static double max_drift = 500000.0; /* in ppm */
static double max_slew_rate = 1e6 / 12.0; /* in ppm */
static double clock_precision = 0.0; /* in seconds */
static SRC_AuthSelectMode authselect_mode = SRC_AUTHSELECT_MIX;
static double max_distance = 3.0;
static double max_jitter = 1.0;
static double reselect_distance = 1e-4;
static double stratum_weight = 1e-3;
static double combine_limit = 3.0;
static int cmd_port = DEFAULT_CANDM_PORT;
static int raw_measurements = 0;
static int do_log_measurements = 0;
static int do_log_selection = 0;
static int do_log_statistics = 0;
static int do_log_tracking = 0;
static int do_log_rtc = 0;
static int do_log_refclocks = 0;
static int do_log_tempcomp = 0;
static int log_banner = 32;
static char *logdir = NULL;
static char *dumpdir = NULL;
static int enable_local=0;
static int local_stratum;
static int local_orphan;
static double local_distance;
/* Threshold (in seconds) - if absolute value of initial error is less
than this, slew instead of stepping */
static double init_slew_threshold;
/* Array of IPAddr */
static ARR_Instance init_sources;
static int enable_manual=0;
/* Flag set if the RTC runs UTC (default is it runs local time
incl. daylight saving). */
static int rtc_on_utc = 0;
/* Filename used to read the hwclock(8) LOCAL/UTC setting */
static char *hwclock_file;
/* Flag set if the RTC should be automatically synchronised by kernel */
static int rtc_sync = 0;
/* Limit and threshold for clock stepping */
static int make_step_limit = 0;
static double make_step_threshold = 0.0;
/* Threshold for automatic RTC trimming */
static double rtc_autotrim_threshold = 0.0;
/* Minimum number of selectables sources required to update the clock */
static int min_sources = 1;
/* Number of updates before offset checking, number of ignored updates
before exiting and the maximum allowed offset */
static int max_offset_delay = -1;
static int max_offset_ignore;
static double max_offset;
/* Maximum and minimum number of samples per source */
static int max_samples = 0; /* no limit */
static int min_samples = 6;
/* Threshold for a time adjustment to be logged to syslog */
static double log_change_threshold = 1.0;
static char *mail_user_on_change = NULL;
static double mail_change_threshold = 0.0;
/* Flag indicating that we don't want to log clients, e.g. to save
memory */
static int no_client_log = 0;
/* Limit memory allocated for the clients log */
static unsigned long client_log_limit = 524288;
/* Minimum and maximum fallback drift intervals */
static int fb_drift_min = 0;
static int fb_drift_max = 0;
/* IP addresses for binding the NTP server sockets to. UNSPEC family means
INADDR_ANY will be used */
static IPAddr bind_address4, bind_address6;
/* IP addresses for binding the NTP client sockets to. UNSPEC family means
INADDR_ANY will be used */
static IPAddr bind_acq_address4, bind_acq_address6;
/* IP addresses for binding the command socket to. UNSPEC family means
the loopback address will be used */
static IPAddr bind_cmd_address4, bind_cmd_address6;
/* Interface names to bind the NTP server, NTP client, and command socket */
static char *bind_ntp_iface = NULL;
static char *bind_acq_iface = NULL;
static char *bind_cmd_iface = NULL;
/* Path to the Unix domain command socket. */
static char *bind_cmd_path = NULL;
/* Differentiated Services Code Point (DSCP) in transmitted NTP packets */
static int ntp_dscp = 0;
/* Path to Samba (ntp_signd) socket. */
static char *ntp_signd_socket = NULL;
/* Filename to use for storing pid of running chronyd, to prevent multiple
* chronyds being started. */
static char *pidfile = NULL;
/* Rate limiting parameters */
static int ntp_ratelimit_enabled = 0;
static int ntp_ratelimit_interval = 3;
static int ntp_ratelimit_burst = 8;
static int ntp_ratelimit_leak = 2;
static int nts_ratelimit_enabled = 0;
static int nts_ratelimit_interval = 6;
static int nts_ratelimit_burst = 8;
static int nts_ratelimit_leak = 2;
static int cmd_ratelimit_enabled = 0;
static int cmd_ratelimit_interval = -4;
static int cmd_ratelimit_burst = 8;
static int cmd_ratelimit_leak = 2;
/* Smoothing constants */
static double smooth_max_freq = 0.0; /* in ppm */
static double smooth_max_wander = 0.0; /* in ppm/s */
static int smooth_leap_only = 0;
/* Temperature sensor, update interval and compensation coefficients */
static char *tempcomp_sensor_file = NULL;
static char *tempcomp_point_file = NULL;
static double tempcomp_interval;
static double tempcomp_T0, tempcomp_k0, tempcomp_k1, tempcomp_k2;
static int sched_priority = 0;
static int lock_memory = 0;
/* Leap second handling mode */
static REF_LeapMode leapsec_mode = REF_LeapModeSystem;
/* Name of a system timezone containing leap seconds occuring at midnight */
static char *leapsec_tz = NULL;
/* Name of the user to which will be dropped root privileges. */
static char *user;
/* NTS server and client configuration */
static char *nts_dump_dir = NULL;
static char *nts_ntp_server = NULL;
static ARR_Instance nts_server_cert_files; /* array of (char *) */
static ARR_Instance nts_server_key_files; /* array of (char *) */
static int nts_server_port = NKE_PORT;
static int nts_server_processes = 1;
static int nts_server_connections = 100;
static int nts_refresh = 2419200; /* 4 weeks */
static int nts_rotate = 604800; /* 1 week */
static ARR_Instance nts_trusted_certs_paths; /* array of (char *) */
static ARR_Instance nts_trusted_certs_ids; /* array of uint32_t */
/* Number of clock updates needed to enable certificate time checks */
static int no_cert_time_check = 0;
/* Flag disabling use of system trusted certificates */
static int no_system_cert = 0;
/* Array of CNF_HwTsInterface */
static ARR_Instance hwts_interfaces;
/* PTP event port (disabled by default) */
static int ptp_port = 0;
typedef struct {
NTP_Source_Type type;
int pool;
CPS_NTP_Source params;
} NTP_Source;
/* Array of NTP_Source */
static ARR_Instance ntp_sources;
/* Array of (char *) */
static ARR_Instance ntp_source_dirs;
/* Array of uint32_t corresponding to ntp_sources (for sourcedirs reload) */
static ARR_Instance ntp_source_ids;
/* Array of RefclockParameters */
static ARR_Instance refclock_sources;
typedef struct _AllowDeny {
IPAddr ip;
int subnet_bits;
int all; /* 1 to override existing more specific defns */
int allow; /* 0 for deny, 1 for allow */
} AllowDeny;
/* Arrays of AllowDeny */
static ARR_Instance ntp_restrictions;
static ARR_Instance cmd_restrictions;
typedef struct {
NTP_Remote_Address addr;
int interval;
} NTP_Broadcast_Destination;
/* Array of NTP_Broadcast_Destination */
static ARR_Instance broadcasts;
/* ================================================== */
/* The line number in the configuration file being processed */
static int line_number;
static const char *processed_file;
static const char *processed_command;
static int include_level = 0;
/* ================================================== */
static void
command_parse_error(void)
{
LOG_FATAL("Could not parse %s directive at line %d%s%s",
processed_command, line_number, processed_file ? " in file " : "",
processed_file ? processed_file : "");
}
/* ================================================== */
static void
other_parse_error(const char *message)
{
LOG_FATAL("%s at line %d%s%s",
message, line_number, processed_file ? " in file " : "",
processed_file ? processed_file : "");
}
/* ================================================== */
static int
get_number_of_args(char *line)
{
int num = 0;
/* The line is normalized, between arguments is just one space */
if (*line == ' ')
line++;
if (*line)
num++;
for (; *line; line++) {
if (*line == ' ')
num++;
}
return num;
}
/* ================================================== */
static void
check_number_of_args(char *line, int num)
{
num -= get_number_of_args(line);
if (num) {
LOG_FATAL("%s arguments for %s directive at line %d%s%s",
num > 0 ? "Missing" : "Too many",
processed_command, line_number, processed_file ? " in file " : "",
processed_file ? processed_file : "");
}
}
/* ================================================== */
void
CNF_Initialise(int r, int client_only)
{
restarted = r;
hwts_interfaces = ARR_CreateInstance(sizeof (CNF_HwTsInterface));
init_sources = ARR_CreateInstance(sizeof (IPAddr));
ntp_sources = ARR_CreateInstance(sizeof (NTP_Source));
ntp_source_dirs = ARR_CreateInstance(sizeof (char *));
ntp_source_ids = ARR_CreateInstance(sizeof (uint32_t));
refclock_sources = ARR_CreateInstance(sizeof (RefclockParameters));
broadcasts = ARR_CreateInstance(sizeof (NTP_Broadcast_Destination));
ntp_restrictions = ARR_CreateInstance(sizeof (AllowDeny));
cmd_restrictions = ARR_CreateInstance(sizeof (AllowDeny));
nts_server_cert_files = ARR_CreateInstance(sizeof (char *));
nts_server_key_files = ARR_CreateInstance(sizeof (char *));
nts_trusted_certs_paths = ARR_CreateInstance(sizeof (char *));
nts_trusted_certs_ids = ARR_CreateInstance(sizeof (uint32_t));
rtc_device = Strdup(DEFAULT_RTC_DEVICE);
hwclock_file = Strdup(DEFAULT_HWCLOCK_FILE);
user = Strdup(DEFAULT_USER);
if (client_only) {
cmd_port = ntp_port = 0;
} else {
bind_cmd_path = Strdup(DEFAULT_COMMAND_SOCKET);
pidfile = Strdup(DEFAULT_PID_FILE);
}
SCK_GetAnyLocalIPAddress(IPADDR_INET4, &bind_address4);
SCK_GetAnyLocalIPAddress(IPADDR_INET6, &bind_address6);
SCK_GetAnyLocalIPAddress(IPADDR_INET4, &bind_acq_address4);
SCK_GetAnyLocalIPAddress(IPADDR_INET6, &bind_acq_address6);
SCK_GetLoopbackIPAddress(IPADDR_INET4, &bind_cmd_address4);
SCK_GetLoopbackIPAddress(IPADDR_INET6, &bind_cmd_address6);
}
/* ================================================== */
void
CNF_Finalise(void)
{
unsigned int i;
for (i = 0; i < ARR_GetSize(hwts_interfaces); i++)
Free(((CNF_HwTsInterface *)ARR_GetElement(hwts_interfaces, i))->name);
ARR_DestroyInstance(hwts_interfaces);
for (i = 0; i < ARR_GetSize(ntp_sources); i++)
Free(((NTP_Source *)ARR_GetElement(ntp_sources, i))->params.name);
for (i = 0; i < ARR_GetSize(ntp_source_dirs); i++)
Free(*(char **)ARR_GetElement(ntp_source_dirs, i));
for (i = 0; i < ARR_GetSize(refclock_sources); i++) {
Free(((RefclockParameters *)ARR_GetElement(refclock_sources, i))->driver_name);
Free(((RefclockParameters *)ARR_GetElement(refclock_sources, i))->driver_parameter);
}
for (i = 0; i < ARR_GetSize(nts_server_cert_files); i++)
Free(*(char **)ARR_GetElement(nts_server_cert_files, i));
for (i = 0; i < ARR_GetSize(nts_server_key_files); i++)
Free(*(char **)ARR_GetElement(nts_server_key_files, i));
for (i = 0; i < ARR_GetSize(nts_trusted_certs_paths); i++)
Free(*(char **)ARR_GetElement(nts_trusted_certs_paths, i));
ARR_DestroyInstance(init_sources);
ARR_DestroyInstance(ntp_sources);
ARR_DestroyInstance(ntp_source_dirs);
ARR_DestroyInstance(ntp_source_ids);
ARR_DestroyInstance(refclock_sources);
ARR_DestroyInstance(broadcasts);
ARR_DestroyInstance(ntp_restrictions);
ARR_DestroyInstance(cmd_restrictions);
ARR_DestroyInstance(nts_server_cert_files);
ARR_DestroyInstance(nts_server_key_files);
ARR_DestroyInstance(nts_trusted_certs_paths);
ARR_DestroyInstance(nts_trusted_certs_ids);
Free(drift_file);
Free(dumpdir);
Free(hwclock_file);
Free(keys_file);
Free(leapsec_tz);
Free(logdir);
Free(bind_ntp_iface);
Free(bind_acq_iface);
Free(bind_cmd_iface);
Free(bind_cmd_path);
Free(ntp_signd_socket);
Free(pidfile);
Free(rtc_device);
Free(rtc_file);
Free(user);
Free(mail_user_on_change);
Free(tempcomp_sensor_file);
Free(tempcomp_point_file);
Free(nts_dump_dir);
Free(nts_ntp_server);
}
/* ================================================== */
void
CNF_EnablePrint(void)
{
print_config = 1;
}
/* ================================================== */
/* Read the configuration file */
void
CNF_ReadFile(const char *filename)
{
FILE *in;
char line[MAX_LINE_LENGTH + 1];
int i;
include_level++;
if (include_level > MAX_INCLUDE_LEVEL)
LOG_FATAL("Maximum include level reached");
in = UTI_OpenFile(NULL, filename, NULL, 'R', 0);
for (i = 1; fgets(line, sizeof(line), in); i++) {
CNF_ParseLine(filename, i, line);
}
fclose(in);
include_level--;
}
/* ================================================== */
/* Parse one configuration line */
void
CNF_ParseLine(const char *filename, int number, char *line)
{
char *p, *command;
/* Set global variables used in error messages */
processed_file = filename;
line_number = number;
/* Detect truncated line */
if (strlen(line) >= MAX_LINE_LENGTH)
other_parse_error("String too long");
/* Remove extra white-space and comments */
CPS_NormalizeLine(line);
/* Skip blank lines */
if (!*line) {
processed_file = NULL;
return;
}
/* We have a real line, now try to match commands */
processed_command = command = line;
p = CPS_SplitWord(line);
if (print_config && strcasecmp(command, "include") && strcasecmp(command, "confdir"))
printf("%s%s%s\n", command, p[0] != '\0' ? " " : "", p);
if (!strcasecmp(command, "acquisitionport")) {
parse_int(p, &acquisition_port);
} else if (!strcasecmp(command, "allow")) {
parse_allow_deny(p, ntp_restrictions, 1);
} else if (!strcasecmp(command, "authselectmode")) {
parse_authselectmode(p);
} else if (!strcasecmp(command, "bindacqaddress")) {
parse_bindacqaddress(p);
} else if (!strcasecmp(command, "bindacqdevice")) {
parse_string(p, &bind_acq_iface);
} else if (!strcasecmp(command, "bindaddress")) {
parse_bindaddress(p);
} else if (!strcasecmp(command, "bindcmdaddress")) {
parse_bindcmdaddress(p);
} else if (!strcasecmp(command, "bindcmddevice")) {
parse_string(p, &bind_cmd_iface);
} else if (!strcasecmp(command, "binddevice")) {
parse_string(p, &bind_ntp_iface);
} else if (!strcasecmp(command, "broadcast")) {
parse_broadcast(p);
} else if (!strcasecmp(command, "clientloglimit")) {
parse_clientloglimit(p);
} else if (!strcasecmp(command, "clockprecision")) {
parse_double(p, &clock_precision);
} else if (!strcasecmp(command, "cmdallow")) {
parse_allow_deny(p, cmd_restrictions, 1);
} else if (!strcasecmp(command, "cmddeny")) {
parse_allow_deny(p, cmd_restrictions, 0);
} else if (!strcasecmp(command, "cmdport")) {
parse_int(p, &cmd_port);
} else if (!strcasecmp(command, "cmdratelimit")) {
parse_ratelimit(p, &cmd_ratelimit_enabled, &cmd_ratelimit_interval,
&cmd_ratelimit_burst, &cmd_ratelimit_leak);
} else if (!strcasecmp(command, "combinelimit")) {
parse_double(p, &combine_limit);
} else if (!strcasecmp(command, "confdir")) {
parse_confdir(p);
} else if (!strcasecmp(command, "corrtimeratio")) {
parse_double(p, &correction_time_ratio);
} else if (!strcasecmp(command, "deny")) {
parse_allow_deny(p, ntp_restrictions, 0);
} else if (!strcasecmp(command, "driftfile")) {
parse_string(p, &drift_file);
} else if (!strcasecmp(command, "dscp")) {
parse_int(p, &ntp_dscp);
} else if (!strcasecmp(command, "dumpdir")) {
parse_string(p, &dumpdir);
} else if (!strcasecmp(command, "dumponexit")) {
/* Silently ignored */
} else if (!strcasecmp(command, "fallbackdrift")) {
parse_fallbackdrift(p);
} else if (!strcasecmp(command, "hwclockfile")) {
parse_string(p, &hwclock_file);
} else if (!strcasecmp(command, "hwtimestamp")) {
parse_hwtimestamp(p);
} else if (!strcasecmp(command, "include")) {
parse_include(p);
} else if (!strcasecmp(command, "initstepslew")) {
parse_initstepslew(p);
} else if (!strcasecmp(command, "keyfile")) {
parse_string(p, &keys_file);
} else if (!strcasecmp(command, "leapsecmode")) {
parse_leapsecmode(p);
} else if (!strcasecmp(command, "leapsectz")) {
parse_string(p, &leapsec_tz);
} else if (!strcasecmp(command, "local")) {
parse_local(p);
} else if (!strcasecmp(command, "lock_all")) {
lock_memory = parse_null(p);
} else if (!strcasecmp(command, "log")) {
parse_log(p);
} else if (!strcasecmp(command, "logbanner")) {
parse_int(p, &log_banner);
} else if (!strcasecmp(command, "logchange")) {
parse_double(p, &log_change_threshold);
} else if (!strcasecmp(command, "logdir")) {
parse_string(p, &logdir);
} else if (!strcasecmp(command, "mailonchange")) {
parse_mailonchange(p);
} else if (!strcasecmp(command, "makestep")) {
parse_makestep(p);
} else if (!strcasecmp(command, "manual")) {
enable_manual = parse_null(p);
} else if (!strcasecmp(command, "maxchange")) {
parse_maxchange(p);
} else if (!strcasecmp(command, "maxclockerror")) {
parse_double(p, &max_clock_error);
} else if (!strcasecmp(command, "maxdistance")) {
parse_double(p, &max_distance);
} else if (!strcasecmp(command, "maxdrift")) {
parse_double(p, &max_drift);
} else if (!strcasecmp(command, "maxjitter")) {
parse_double(p, &max_jitter);
} else if (!strcasecmp(command, "maxntsconnections")) {
parse_int(p, &nts_server_connections);
} else if (!strcasecmp(command, "maxsamples")) {
parse_int(p, &max_samples);
} else if (!strcasecmp(command, "maxslewrate")) {
parse_double(p, &max_slew_rate);
} else if (!strcasecmp(command, "maxupdateskew")) {
parse_double(p, &max_update_skew);
} else if (!strcasecmp(command, "minsamples")) {
parse_int(p, &min_samples);
} else if (!strcasecmp(command, "minsources")) {
parse_int(p, &min_sources);
} else if (!strcasecmp(command, "nocerttimecheck")) {
parse_int(p, &no_cert_time_check);
} else if (!strcasecmp(command, "noclientlog")) {
no_client_log = parse_null(p);
} else if (!strcasecmp(command, "nosystemcert")) {
no_system_cert = parse_null(p);
} else if (!strcasecmp(command, "ntpsigndsocket")) {
parse_string(p, &ntp_signd_socket);
} else if (!strcasecmp(command, "ntsratelimit")) {
parse_ratelimit(p, &nts_ratelimit_enabled, &nts_ratelimit_interval,
&nts_ratelimit_burst, &nts_ratelimit_leak);
} else if (!strcasecmp(command, "ntscachedir") ||
!strcasecmp(command, "ntsdumpdir")) {
parse_string(p, &nts_dump_dir);
} else if (!strcasecmp(command, "ntsntpserver")) {
parse_string(p, &nts_ntp_server);
} else if (!strcasecmp(command, "ntsport")) {
parse_int(p, &nts_server_port);
} else if (!strcasecmp(command, "ntsprocesses")) {
parse_int(p, &nts_server_processes);
} else if (!strcasecmp(command, "ntsrefresh")) {
parse_int(p, &nts_refresh);
} else if (!strcasecmp(command, "ntsrotate")) {
parse_int(p, &nts_rotate);
} else if (!strcasecmp(command, "ntsservercert")) {
parse_ntsserver(p, nts_server_cert_files);
} else if (!strcasecmp(command, "ntsserverkey")) {
parse_ntsserver(p, nts_server_key_files);
} else if (!strcasecmp(command, "ntstrustedcerts")) {
parse_ntstrustedcerts(p);
} else if (!strcasecmp(command, "peer")) {
parse_source(p, command, 1);
} else if (!strcasecmp(command, "pidfile")) {
parse_string(p, &pidfile);
} else if (!strcasecmp(command, "pool")) {
parse_source(p, command, 1);
} else if (!strcasecmp(command, "port")) {
parse_int(p, &ntp_port);
} else if (!strcasecmp(command, "ptpport")) {
parse_int(p, &ptp_port);
} else if (!strcasecmp(command, "ratelimit")) {
parse_ratelimit(p, &ntp_ratelimit_enabled, &ntp_ratelimit_interval,
&ntp_ratelimit_burst, &ntp_ratelimit_leak);
} else if (!strcasecmp(command, "refclock")) {
parse_refclock(p);
} else if (!strcasecmp(command, "reselectdist")) {
parse_double(p, &reselect_distance);
} else if (!strcasecmp(command, "rtcautotrim")) {
parse_double(p, &rtc_autotrim_threshold);
} else if (!strcasecmp(command, "rtcdevice")) {
parse_string(p, &rtc_device);
} else if (!strcasecmp(command, "rtcfile")) {
parse_string(p, &rtc_file);
} else if (!strcasecmp(command, "rtconutc")) {
rtc_on_utc = parse_null(p);
} else if (!strcasecmp(command, "rtcsync")) {
rtc_sync = parse_null(p);
} else if (!strcasecmp(command, "sched_priority")) {
parse_int(p, &sched_priority);
} else if (!strcasecmp(command, "server")) {
parse_source(p, command, 1);
} else if (!strcasecmp(command, "smoothtime")) {
parse_smoothtime(p);
} else if (!strcasecmp(command, "sourcedir")) {
parse_sourcedir(p);
} else if (!strcasecmp(command, "stratumweight")) {
parse_double(p, &stratum_weight);
} else if (!strcasecmp(command, "tempcomp")) {
parse_tempcomp(p);
} else if (!strcasecmp(command, "user")) {
parse_string(p, &user);
} else if (!strcasecmp(command, "commandkey") ||
!strcasecmp(command, "generatecommandkey") ||
!strcasecmp(command, "linux_freq_scale") ||
!strcasecmp(command, "linux_hz")) {
LOG(LOGS_WARN, "%s directive is no longer supported", command);
} else {
other_parse_error("Invalid directive");
}
processed_file = processed_command = NULL;
}
/* ================================================== */
static int
parse_string(char *line, char **result)
{
check_number_of_args(line, 1);
Free(*result);
*result = Strdup(line);
return 1;
}
/* ================================================== */
static int
parse_int(char *line, int *result)
{
check_number_of_args(line, 1);
if (sscanf(line, "%d", result) != 1) {
command_parse_error();
return 0;
}
return 1;
}
/* ================================================== */
static int
parse_double(char *line, double *result)
{
check_number_of_args(line, 1);
if (sscanf(line, "%lf", result) != 1) {
command_parse_error();
return 0;
}
return 1;
}
/* ================================================== */
static int
parse_null(char *line)
{
check_number_of_args(line, 0);
return 1;
}
/* ================================================== */
static void
parse_source(char *line, char *type, int fatal)
{
NTP_Source source;
if (strcasecmp(type, "peer") == 0) {
source.type = NTP_PEER;
source.pool = 0;
} else if (strcasecmp(type, "pool") == 0) {
source.type = NTP_SERVER;
source.pool = 1;
} else if (strcasecmp(type, "server") == 0) {
source.type = NTP_SERVER;
source.pool = 0;
} else {
if (fatal)
command_parse_error();
return;
}
/* Avoid comparing uninitialized data in compare_sources() */
memset(&source.params, 0, sizeof (source.params));
if (!CPS_ParseNTPSourceAdd(line, &source.params)) {
if (fatal)
command_parse_error();
return;
}
source.params.name = Strdup(source.params.name);
ARR_AppendElement(ntp_sources, &source);
}
/* ================================================== */
static void
parse_sourcedir(char *line)
{
char *s;
s = Strdup(line);
ARR_AppendElement(ntp_source_dirs, &s);
}
/* ================================================== */
static void
parse_ratelimit(char *line, int *enabled, int *interval, int *burst, int *leak)
{
int n, val;
char *opt;
*enabled = 1;
while (*line) {
opt = line;
line = CPS_SplitWord(line);
if (sscanf(line, "%d%n", &val, &n) != 1) {
command_parse_error();
return;
}
line += n;
if (!strcasecmp(opt, "interval"))
*interval = val;
else if (!strcasecmp(opt, "burst"))
*burst = val;
else if (!strcasecmp(opt, "leak"))
*leak = val;
else
command_parse_error();
}
}
/* ================================================== */
static void
parse_refclock(char *line)
{
int n, poll, dpoll, filter_length, pps_rate, min_samples, max_samples, sel_options;
int local, max_lock_age, pps_forced, stratum, tai;
uint32_t ref_id, lock_ref_id;
double offset, delay, precision, max_dispersion, pulse_width;
char *p, *cmd, *name, *param;
unsigned char ref[5];
RefclockParameters *refclock;
poll = 4;
dpoll = 0;
filter_length = 64;
local = 0;
pps_forced = 0;
pps_rate = 0;
min_samples = SRC_DEFAULT_MINSAMPLES;
max_samples = SRC_DEFAULT_MAXSAMPLES;
sel_options = 0;
offset = 0.0;
delay = 1e-9;
precision = 0.0;
max_dispersion = 0.0;
pulse_width = 0.0;
ref_id = 0;
max_lock_age = 2;
lock_ref_id = 0;
stratum = 0;
tai = 0;
if (!*line) {
command_parse_error();
return;
}
p = line;
line = CPS_SplitWord(line);
if (!*line) {
command_parse_error();
return;
}
name = Strdup(p);
p = line;
line = CPS_SplitWord(line);
param = Strdup(p);
for (cmd = line; *cmd; line += n, cmd = line) {
line = CPS_SplitWord(line);
if (!strcasecmp(cmd, "refid")) {
if (sscanf(line, "%4s%n", (char *)ref, &n) != 1)
break;
ref_id = (uint32_t)ref[0] << 24 | ref[1] << 16 | ref[2] << 8 | ref[3];
} else if (!strcasecmp(cmd, "lock")) {
if (sscanf(line, "%4s%n", (char *)ref, &n) != 1)
break;
lock_ref_id = (uint32_t)ref[0] << 24 | ref[1] << 16 | ref[2] << 8 | ref[3];
} else if (!strcasecmp(cmd, "poll")) {
if (sscanf(line, "%d%n", &poll, &n) != 1) {
break;
}
} else if (!strcasecmp(cmd, "dpoll")) {
if (sscanf(line, "%d%n", &dpoll, &n) != 1) {
break;
}
} else if (!strcasecmp(cmd, "filter")) {
if (sscanf(line, "%d%n", &filter_length, &n) != 1) {
break;
}
} else if (!strcasecmp(cmd, "local")) {
n = 0;
local = 1;
} else if (!strcasecmp(cmd, "rate")) {
if (sscanf(line, "%d%n", &pps_rate, &n) != 1)
break;
} else if (!strcasecmp(cmd, "minsamples")) {
if (sscanf(line, "%d%n", &min_samples, &n) != 1)
break;
} else if (!strcasecmp(cmd, "maxlockage")) {
if (sscanf(line, "%d%n", &max_lock_age, &n) != 1)
break;
} else if (!strcasecmp(cmd, "maxsamples")) {
if (sscanf(line, "%d%n", &max_samples, &n) != 1)
break;
} else if (!strcasecmp(cmd, "offset")) {
if (sscanf(line, "%lf%n", &offset, &n) != 1)
break;
} else if (!strcasecmp(cmd, "delay")) {
if (sscanf(line, "%lf%n", &delay, &n) != 1)
break;
} else if (!strcasecmp(cmd, "pps")) {
n = 0;
pps_forced = 1;
} else if (!strcasecmp(cmd, "precision")) {
if (sscanf(line, "%lf%n", &precision, &n) != 1)
break;
} else if (!strcasecmp(cmd, "maxdispersion")) {
if (sscanf(line, "%lf%n", &max_dispersion, &n) != 1)
break;
} else if (!strcasecmp(cmd, "stratum")) {
if (sscanf(line, "%d%n", &stratum, &n) != 1 ||
stratum >= NTP_MAX_STRATUM || stratum < 0)
break;
} else if (!strcasecmp(cmd, "tai")) {
n = 0;
tai = 1;
} else if (!strcasecmp(cmd, "width")) {
if (sscanf(line, "%lf%n", &pulse_width, &n) != 1)
break;
} else if (!strcasecmp(cmd, "noselect")) {
n = 0;
sel_options |= SRC_SELECT_NOSELECT;
} else if (!strcasecmp(cmd, "prefer")) {
n = 0;
sel_options |= SRC_SELECT_PREFER;
} else if (!strcasecmp(cmd, "trust")) {
n = 0;
sel_options |= SRC_SELECT_TRUST;
} else if (!strcasecmp(cmd, "require")) {
n = 0;
sel_options |= SRC_SELECT_REQUIRE;
} else {
other_parse_error("Invalid refclock option");
return;
}
}
if (*cmd) {
command_parse_error();
return;
}
refclock = (RefclockParameters *)ARR_GetNewElement(refclock_sources);
refclock->driver_name = name;
refclock->driver_parameter = param;
refclock->driver_poll = dpoll;