Pekka Helenius
3 years ago
3 changed files with 138 additions and 14 deletions
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+14 -13README.md
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+3 -1arch/openntpd-git/PKGBUILD
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+121 -0patches/12-patch_fix-adjtime.patch
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README.md
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arch/openntpd-git/PKGBUILD
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patches/12-patch_fix-adjtime.patch
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| @ -0,0 +1,121 @@ | |||
| From: Pekka Helenius <fincer89@hotmail.com> | |||
| Date: Wed, 20 Jan 2021 23:20:31 +0300 | |||
| Subject: Assume system clock is synced when time offset is in specific range limits (quick hotfix). | |||
| --- a/src/ntpd.c 2020-08-03 23:48:23.609231373 +0300 | |||
| +++ b/src/ntpd.c 2021-01-20 23:00:53.946365898 +0200 | |||
| @@ -566,9 +566,12 @@ ntpd_adjtime(double d) | |||
| log_warn("main process: time adjustment failed due to time error"); | |||
| } else if (rc < 0) { | |||
| log_warn("main process: time adjustment failed"); | |||
| - } else if (!firstadj && tx.offset == offset) { | |||
| + } | |||
| + if (tx.offset > -(conf->synced_offset) || tx.offset < conf->synced_offset) { | |||
| synced = 1; | |||
| - } | |||
| + } else { | |||
| + synced = 0; | |||
| + } | |||
| #else | |||
| struct timeval tv, olddelta; | |||
| d_to_tv(d, &tv); | |||
| --- a/src/ntpd.h 2020-08-03 23:25:02.978705101 +0300 | |||
| +++ b/src/ntpd.h 2021-01-20 23:09:58.945735647 +0200 | |||
| @@ -76,6 +76,7 @@ | |||
| #define SETTIME_TIMEOUT 100 /* max seconds to wait when settime == 1 */ | |||
| #define LOG_NEGLIGIBLE_ADJTIME 32 /* negligible drift to not log (ms) */ | |||
| #define LOG_NEGLIGIBLE_ADJFREQ 0.05 /* negligible rate to not log (ppm) */ | |||
| +#define SYNCED_OFFSET 100 /* Synced time offset (μs) */ | |||
| #define FREQUENCY_SAMPLES 8 /* samples for est. of permanent drift */ | |||
| #define MAX_FREQUENCY_ADJUST 128e-5 /* max correction per iteration */ | |||
| #define MAX_SEND_ERRORS 3 /* max send errors before reconnect */ | |||
| @@ -313,6 +314,7 @@ struct ntpd_conf { | |||
| int settime_timeout; | |||
| int log_negligible_adjtime; | |||
| + int synced_offset; | |||
| double log_negligible_adjfreq; | |||
| int frequency_samples; | |||
| --- a/src/parse.y 2020-08-03 23:22:43.401482642 +0300 | |||
| +++ b/src/parse.y 2021-01-20 23:08:20.789182596 +0200 | |||
| @@ -119,6 +119,8 @@ typedef struct { | |||
| %token _LOG_NEGLIGIBLE_ADJTIME | |||
| %token _LOG_NEGLIGIBLE_ADJFREQ | |||
| +%token _SYNCED_OFFSET | |||
| + | |||
| %token _FREQUENCY_SAMPLES | |||
| %token _MAX_FREQUENCY_ADJUST | |||
| @@ -515,6 +517,10 @@ main : LISTEN ON address listen_opts { | |||
| conf->log_negligible_adjfreq = $2.pos_decimal; | |||
| } | |||
| + | _SYNCED_OFFSET pos_num { | |||
| + conf->synced_offset = $2.pos_num; | |||
| + } | |||
| + | |||
| | _FREQUENCY_SAMPLES pos_num { | |||
| conf->frequency_samples = $2.pos_num; | |||
| } | |||
| @@ -918,6 +924,7 @@ lookup(char *s) | |||
| { "servers", SERVERS, "multiple" }, | |||
| { "settime_timeout", _SETTIME_TIMEOUT, "single" }, | |||
| { "stratum", STRATUM, "multiple" }, | |||
| + { "synced_offset", _SYNCED_OFFSET, "single" }, | |||
| { "tries_auto_dnsfail", _TRIES_AUTO_DNSFAIL, "single" }, | |||
| { "trusted", TRUSTED, "multiple" }, | |||
| { "trustlevel_aggressive", _TRUSTLEVEL_AGGRESSIVE, "single" }, | |||
| @@ -1293,6 +1300,9 @@ init_conf(struct ntpd_conf *conf) | |||
| /* negligible rate to not log (ppm) */ | |||
| conf->log_negligible_adjfreq = LOG_NEGLIGIBLE_ADJFREQ; // 0.05; | |||
| + /* negligible drift to not log (ms) */ | |||
| + conf->synced_offset = SYNCED_OFFSET; // 100; | |||
| + | |||
| /* samples for est. of permanent drift */ | |||
| conf->frequency_samples = FREQUENCY_SAMPLES; // 8; | |||
| @@ -1372,6 +1382,8 @@ print_conf(struct ntpd_conf *lconf) | |||
| fprintf(stdout, "Neglible drift time to not log: %d milliseconds\n", conf->log_negligible_adjtime); | |||
| fprintf(stdout, "Neglible frequency rate to not log: %f ppm\n", conf->log_negligible_adjfreq); | |||
| fprintf(stdout, "\n"); | |||
| + fprintf(stdout, "Synced time offset threshold: %d microseconds\n", conf->synced_offset); | |||
| + fprintf(stdout, "\n"); | |||
| fprintf(stdout, "Frequency samples for estimation of permanent drift: %d\n", conf->frequency_samples); | |||
| fprintf(stdout, "Maximum frequency correction per iteration: %f\n", conf->max_frequency_adjust); | |||
| fprintf(stdout, "\n"); | |||
| --- a/src/ntpd.conf.5 2020-08-03 23:21:11.124672226 +0300 | |||
| +++ b/src/ntpd.conf.5 2021-01-20 23:12:45.628871438 +0200 | |||
| @@ -676,6 +676,14 @@ Negligible drift time to not log in mill | |||
| 32 | |||
| .El | |||
| .Ed | |||
| +.It Ic synced_offset Ar microseconds | |||
| +Synced time offset threshold in microseconds. | |||
| +.Bd -literal -offset indent | |||
| +.Bl -tag -width "Default:" -compact | |||
| +.It Default: | |||
| +100 | |||
| +.El | |||
| +.Ed | |||
| .It Ic max_frequency_adjust Ar decimal | |||
| Maximum allowed frequency correction per iteration. | |||
| .Bd -literal -offset indent | |||
| --- a/ntpd.conf 2020-08-03 23:19:18.951338773 +0300 | |||
| +++ b/ntpd.conf 2021-01-20 23:14:56.802048541 +0200 | |||
| @@ -246,6 +246,12 @@ constraints from "https://www.duckduckgo | |||
| # | |||
| # log_negligible_adjtime 32 | |||
| +# Synced time offset threshold in microseconds. | |||
| +# If our time adjustment value exceeds the threshold | |||
| +# we assume the clock is not synced anymore. | |||
| +# | |||
| +# synced_offset 100 | |||
| + | |||
| # Maximum allowed frequency correction per iteration. | |||
| # | |||
| # max_frequency_adjust 0.0128 | |||