gitproxy/RTLPlayground
1
0 Fork 0
mirror of https://github.com/logicog/RTLPlayground.git synced 2026-10-29 17:54:14 +08:00
Code Issues Packages Projects Releases Wiki Activity

ntp: keep the time from an NTP server

Browse Source 
The switch has no battery backed clock, only a seconds counter that starts
at zero on every boot. An SNTP client keeps UTC as the time of the last
answer plus the seconds counted since: "ntp server <name|ip>", "ntp interval
<minutes>", "ntp timezone <+hh:mm>", "ntp dst off|eu|us", "ntp on|off",
"ntp" and "time". A server given by name goes through the DNS resolver, an
answer from an unsynchronised server is ignored, and a failed attempt is
repeated after 30 seconds.

The local time adds the time zone offset and, while the European or United
States rule says so, one hour. The date is split with a shift and subtract
division and a walk over the years, so no 32-bit division from the library
ends up in the common area.

The System page gets the NTP settings and shows the local time.
This commit is contained in:
DrDoof committed 2026-09-29 22:40:59 +02:00
1 parent 67b8c718fb
commit 3cd6d60e0b
11 files changed
+618 -8
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

html/index.html
+16
View File
@@ -382,6 +382,22 @@ button.danger{background:var(--bad);color:#fff;border-color:transparent}
<input class="in" id="sy-sesstmo" style="width:80px" type="number" min="1" max="65535"></label>
<p class="small mut" data-i18n="sy_services_note">Service state reflects the startup config; runtime state is not readable.</p>
</div>
<div class="card" id="sy-ntpcard"><h2 data-i18n="sy_time">Time</h2>
<label class="row" style="justify-content:space-between"><span data-i18n="sy_ntp">NTP</span>
<span class="switch"><input type="checkbox" id="sy-ntp"><i></i></span></label>
<label class="row"><span class="lb" data-i18n="sy_ntpsrv">NTP server</span><input class="in" id="sy-ntpsrv" maxlength="47" data-i18n-p="sy_ntpsrv_p"></label>
<label class="row"><span class="lb" data-i18n="sy_ntpint">Poll interval [min]</span><input class="in sm" id="sy-ntpint" type="number" min="1" max="1440"></label>
<label class="row"><span class="lb" data-i18n="sy_tz">Time zone</span><select class="in" id="sy-tz"></select></label>
<label class="row"><span class="lb" data-i18n="sy_dst">Daylight saving</span><select class="in" id="sy-dst"><option value="off" data-i18n="c_offc">Off</option><option value="eu" data-i18n="sy_dst_eu">Europe</option><option value="us" data-i18n="sy_dst_us">United States</option></select></label>
<div style="display:flex;gap:10px;margin-top:8px">
<button class="ctl pri" id="sy-ntpapply" data-i18n="c_apply">Apply</button>
<button class="ctl" id="sy-ntprefresh" data-i18n="c_refresh">Refresh</button>
</div>
<label class="row" style="margin-top:10px"><span class="lb" data-i18n="sy_now">Local time</span><span class="mono" id="sy-now">-</span></label>
<label class="row"><span class="lb" data-i18n="sy_sync">Last synchronisation</span><span id="sy-sync">-</span></label>
<label class="row"><span class="lb" data-i18n="sy_ntpaddr">Server address</span><span class="mono" id="sy-ntpaddr">-</span></label>
<p class="small mut" style="margin-top:8px" data-i18n="sy_time_note">The switch has no battery backed clock.</p>
</div>
<div class="card"><h2 data-i18n="sy_password">Admin password</h2>
<label class="row"><span class="lb" data-i18n="sy_newpw">New password</span><input class="in" id="sy-pw1" type="password" maxlength="20"></label>
<label class="row"><span class="lb" data-i18n="sy_repeat">Repeat</span><input class="in" id="sy-pw2" type="password" maxlength="20"></label>