Document `ota pull <#> <dest>` (flash|folder, destination mandatory), the folder
pull that captures a device's exact firmware to the host as <mid>.mota (for
delta-building), the paused/resume-on-reconnect behaviour, and that a `motatool
serve` link doubles as the pull-to-folder store. (protocol §10, user guide,
motatool README)
If an `ota pull <#> folder` block-write fails mid-transfer (the motatool seeder
link dropped), the fetch enters a new PAUSED state instead of failing or falling
back to RAM/flash: progress stays on the host, the manager stops requesting, and
loop()/stall-detection leave it untouched (it waits indefinitely). On reconnect
the ESP32 seeder re-registers the folder destination and, if PAUSED, calls
resumeStaged(): OP_STAT re-attaches the host's partial, the leaves are re-read,
and only the missing blocks are re-requested (a brand-new/absent file restarts
from 0). `ota status` reports the paused state.
FolderMotaStore: an OtaStore that streams an in-transit .mota straight to the host
folder over the seeder link (OP_BEGIN/WRITE/SREAD/STAT/FIN) instead of RAM/flash —
the device holds no local staging for it. Wired as a selectable pull destination:
- OtaContext gains a folder_dest (registered by the app while a motatool `serve`
link is up) + its human id (e.g. "tcp 192.168.4.5").
- `ota pull <#> <dest>` now takes a MANDATORY destination; `ota pull <#>` with none
lists the choices (flash always; folder + its link id when connected).
- The ESP32 WiFi seeder registers/clears the folder destination on connect/close —
the same connection both serves the folder and accepts pulls into it.
Captures an exact copy of a device's firmware over the mesh to build a delta
against. Pause/resume on a mid-pull disconnect follows.
Add the device->host WRITE half of the mota-seeder link so a device can capture
a .mota it is fetching off-mesh into the host folder (the same --dir used for
serving), stored as <mid>.mota — e.g. to grab an exact copy of a device's
firmware to build a delta against firmware you don't otherwise have.
- MotaSeederProto: OP_STAT / OP_BEGIN / OP_WRITE / OP_SREAD / OP_FIN (keyed by
mid). Resume needs no host bookkeeping: BEGIN 0xFF-fills the file; on reconnect
the device SREADs the leaves and re-requests only missing blocks (same as flash
resume). Partial = <midhex>.mota.part, published to <midhex>.mota on FIN.
- motatool `serve --dir <folder>` now also handles the storage ops on the same
folder/connection (SeederCore gains the store dir; serve_loop frames the
variable-length WRITE). Host round-trip test added.
Firmware side (FolderMotaStore + `ota pull <#> <dest>` + pause/resume) follows.
Bound OTA-over-LoRa duty cycle across repeaters with one runtime-tunable,
persisted limit (OtaManager::max_hops, `ota config hops <0..8>`, default 3):
- Accept-gate: a node ignores OTA that arrived from more than max_hops hops
away (neither processes nor relays it). 0 = direct only.
- Forward-cap: relay a flood only while still under max_hops, appending this
node's path-hash (hop count increments like the mesh flood routing).
- RAM guard: relay an OTA flood only while more than OTA_FWD_MIN_FREE packet-
pool slots stay free, so heavy OTA (best-effort, lowest-priority) can never
monopolise the shared pool and starve real traffic — a dropped relay is
re-requested by the source.
Persisted in NodePrefs (CommonCLI) and shown in `ota config`. Docs updated.
The discovery beacon previously re-announced at a random 3-10 min interval.
Replace that with a fixed, user-configurable cadence:
- OtaManager::advert_mins() — re-advertise every N minutes after the boot
burst; 0 disables periodic re-advertise (boot burst only). Default 24h.
- Persisted in NodePrefs (CommonCLI) and runtime-tunable: `ota config advert
<minutes>` (0..10080; 0 = off), and shown in `ota config`.
- When periodic advert is disabled, the scheduler still re-checks the config
on a slow timer, so a later `ota config advert <mins>` takes effect live.
Also advertise immediately whenever the served set changes — when a motatool
folder is attached to / detached from the ESP32 WiFi seeder — so peers learn
about newly-available firmware without waiting for the next interval (the
`ota folder` serial path already announced on attach).
Docs: protocol beacon-cadence note + user-guide `ota config advert`.
Switch these existing variants from `nrf52_base` to `rak4631_hw` (which adds
ENABLE_OTA + the in-place flash store + the EndF post-build hook), so they get
OTA-over-LoRa. Scope is limited to variants already covered by the
Adafruit_nRF52_Bootloader_OTAFIX in-place apply — no new variants are added.
OtaTargets.h is regenerated to include their target ids.
Discovery was hard to use — a node only advertised at boot, so a peer that
ran `ota ls` minutes later saw "no neighbours".
- First self-advert ~8s after boot, then a short burst (~1 min), then
re-announce at a random 3-10 min interval so a long-running node stays
discoverable without all nodes beaconing in lockstep. The beacon is tiny,
lowest-priority and duty-gated, so a few-minute cadence is cheap.
- `ota ls` now shows the raw target id (`hw XXXXXXXX`) when the env name is
not in this build's OtaTargets.h table, instead of a blank "[other hw]".
Extends the USB-serial folder relay to WiFi so an ESP32 companion can both
serve .mota and be operated headlessly:
- motatool `serve --tcp <host[:port]>`: a TcpTransport sibling of the serial
transport (default port 5001). SeederCore/Folder are reused unchanged — the
COUNT/DESCRIBE/READ protocol is transport-agnostic.
- ESP32 companion: a dedicated OTA seeder port (5001) for `serve --tcp`, plus
an OTA text console on 5002 (`nc <ip> 5002` -> `ota status|ls|announce|...`,
the same handle_ota_command CLI serial nodes have). Both run alongside the
phone-app port (5000); all three coexist.
- WiFi.setSleep(false): ESP32 STA mode's modem power-save periodically sleeps
the modem/CPU and stalls the SX1262 SPI+DIO servicing, leaving LoRa deaf
while WiFi is associated. Disabling it restores the radio (HW-validated:
a V3 WiFi companion is then discovered over LoRa and discovers its peers).
- docs: serving .mota over WiFi (protocol §10.2 + user guide).
Valentin Kivachuk Burda