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system: configurable hostname (device identity)

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Add a device hostname settable from the CLI (`hostname <text>`) and the
System Settings page. The value is sanitized on ingest to JSON-safe
printable ASCII (<=23 chars), stored in a shared __xdata buffer, seeded
to "RTLPlayground" at boot, persisted through the startup-config, and
reported in /information.json. It lives in the common header so other
modules can advertise it (LLDP uses it as the System Name TLV).
This commit is contained in:
d00f
2026-07-25 13:07:09 +02:00
parent 481c02c740
commit f21b3a32bd
8 changed files with 47 additions and 0 deletions
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httpd/page_impl.c
+6
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@@ -252,6 +252,12 @@ void send_basic_info(void)
byte_to_html(uip_ethaddr.addr[3]); char_to_html(':');
byte_to_html(uip_ethaddr.addr[4]); char_to_html(':');
byte_to_html(uip_ethaddr.addr[5]);
slen += strtox(outbuf + slen, "\",\"hostname\":\"");
{
__xdata char *hp = hostname; /* sanitized on ingest, emit verbatim */
while (*hp)
char_to_html(*hp++);
}
slen += strtox(outbuf + slen, "\",\"sw_ver\":\"");
slen += strtox(outbuf + slen, VERSION_SW);
slen += strtox(outbuf + slen, "\",\"build_date\":\"");