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Keep vanetza-idf in obu-firmware, so a plain clone builds the firmware

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obu-firmware builds against the vanetza-idf C-ITS library, which until now
came from the colleague's microbu-esp32c5 tree beside the repository and was
not tracked here, so a clone of this repository could not build the firmware
it ships. The library alone is now part of obu-firmware, as
obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit
cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from
there by default; -DVANETZA_IDF_DIR still points the build elsewhere.

The rest of the colleague's tree (their own VAM firmware, PKI tooling,
station-link Python tools, the V2X2MAP bridge) stays out of this repository
and gitignored; nothing is pushed to their repository. NOTES.md, docs/06,
TODO.md and the pcap verifier's usage line point at the new location.
This commit is contained in:
Ashin Walpola
2026-09-24 10:56:05 +02:00
parent 2f60623e18
commit d107534eb2
9781 changed files with 1560475 additions and 17 deletions
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docs/06-signed-its-vam-ble.md
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@@ -35,8 +35,10 @@ fit together, how it was verified, and what is still open. Hardware checks still
## Firmware (obu-firmware)
obu-firmware is now a port of `microbu-esp32c5/firmware` (the colleague's repository, kept beside
this one, gitignored). vanetza-idf is taken from `microbu-esp32c5/external/vanetza-idf`. It builds
obu-firmware is now a port of `microbu-esp32c5/firmware`, from the colleague's own repository
(not part of this one; nothing is pushed there). The C-ITS library it needs is copied into this
repository as `obu-firmware/external/vanetza-idf` (their commit cf4b99f, unchanged), so
obu-firmware builds from a plain clone. It builds
with **ESP-IDF 6.0.2 only**: the raw-TX path uses private Wi-Fi driver structures that vanetza-idf
pins to that version. The previous C firmware (IDF 6.1) is backed up as a full flash image in
`firmware-backups/` (gitignored, restore command in its README.txt); its sources stay on disk,
@@ -62,7 +64,7 @@ Main changes against the colleague's firmware:
## Link protocol
Station-link v1 (`microbu-esp32c5/station-link/README.md`): `[opcode][flags][sequence LE][body]`,
Station-link v1 (colleague's repository, `station-link/README.md`): `[opcode][flags][sequence LE][body]`,
little-endian, at most 512 octets. Over USB each message is one `0xAA55` frame of type `0x10`
(the old framing and CRC). Over BLE each message is one GATT value on service
`0000C175-BA5E-4C17-8000-00805F9B34FB` (the README describes a different, Nordic-UART layout; the