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Allow WiFi credentials to be set at runtime

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Store ssid/pwd in NodePrefs and set them with 'set wifi.ssid' /
'set wifi.pwd' over USB serial; build-time WIFI_SSID/WIFI_PWD stay as
the fallback. Headless WiFi builds get the config CLI on Serial, which
is otherwise unused there.
This commit is contained in:
Michael Graff
2026-09-05 23:15:13 -05:00
parent 0b2c47a932
commit 739a67c9f1
3 changed files with 71 additions and 3 deletions
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examples/companion_radio/MyMesh.cpp
+34
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@@ -932,6 +932,7 @@ MyMesh::MyMesh(mesh::Radio &radio, mesh::RNG &rng, mesh::RTCClock &rtc, SimpleMe
_serial(NULL), telemetry(MAX_PACKET_PAYLOAD - 4), _store(&store), _ui(ui), _iter(0) {
_iter_started = false;
_cli_rescue = false;
cli_command[0] = 0;
offline_queue_len = 0;
app_target_ver = 0;
clearPendingReqs();
@@ -2156,6 +2157,35 @@ bool MyMesh::handleCommand(const char* command, uint32_t sender_timestamp, char*
return true;
}
#ifdef WIFI_SSID
// local console only: these are credentials, and remote admin has no business with them
if (sender_timestamp == 0) {
if (memcmp(command, "set wifi.ssid ", 14) == 0) {
StrHelper::strncpy(_prefs.wifi_ssid, &command[14], sizeof(_prefs.wifi_ssid));
savePrefs();
sprintf(reply, "> wifi.ssid is now %s (set wifi.pwd too, then reboot)", _prefs.wifi_ssid);
return true;
}
if (memcmp(command, "set wifi.pwd ", 13) == 0) {
StrHelper::strncpy(_prefs.wifi_pwd, &command[13], sizeof(_prefs.wifi_pwd));
savePrefs();
strcpy(reply, "> wifi.pwd updated (reboot to apply)");
return true;
}
if (strcmp(command, "set wifi.clear") == 0) {
_prefs.wifi_ssid[0] = 0;
_prefs.wifi_pwd[0] = 0;
savePrefs();
strcpy(reply, "> wifi config cleared, using build-time credentials (reboot to apply)");
return true;
}
if (strcmp(command, "get wifi.ssid") == 0) { // no 'get wifi.pwd', by design
sprintf(reply, "> %s", _prefs.wifi_ssid[0] ? _prefs.wifi_ssid : "(build-time)");
return true;
}
}
#endif
if (strcmp(command, "board") == 0) {
strcpy(reply, board.getManufacturerName());
return true;
@@ -2386,6 +2416,10 @@ void MyMesh::loop() {
checkCLIRescueCmd();
} else {
checkSerialInterface();
#if defined(WIFI_SSID) && !defined(ENABLE_USB_INTERFACE)
// headless WiFi build: USB serial isn't a companion transport, so use it for config
checkCLIRescueCmd();
#endif
}
// is there are pending dirty contacts write needed?