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Add admin firmware upload support

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Implement authenticated HTTPS OTA uploads with bounded streaming, image
validation, reboot coordination, and lifecycle exclusion. Add the admin
UI,
regression tests, and Phase 10 acceptance documentation.
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Commander1024
2026-09-18 22:22:11 +02:00
parent 4f628a4098
commit 31a22eba06
31 changed files with 1442 additions and 88 deletions
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docs/agent/architecture.md
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@@ -104,7 +104,7 @@ TinyUSB callbacks enqueue/copy data and state; the transport task owns broker li
### HTTPS, WebSocket, and web serial
`web_server` owns HTTPS on port 443 with a persisted self-signed P-256 identity. `web_serial_transport` mediates two fixed WebSocket slots through the broker; HTTPD owns socket sends/close, the transport task owns broker IO. Four outstanding serial tickets, four cookie sessions, one optional admin WebSocket and six total HTTPD sockets are distinct limits; LRU is disabled. Current handler capacity is 39. Base HTTPS can serve authenticated non-WebSocket routes if optional serial/admin transport initialization fails.
`web_server` owns HTTPS on port 443 with a persisted self-signed P-256 identity. `web_serial_transport` mediates two fixed WebSocket slots through the broker; HTTPD owns socket sends/close, the transport task owns broker IO. Four outstanding serial tickets, four cookie sessions, one optional admin WebSocket and six total HTTPD sockets are distinct limits; LRU is disabled. Current handler capacity is 40. Base HTTPS can serve authenticated non-WebSocket routes if optional serial/admin transport initialization fails.
Cookie login/logout replaces Basic/cache. Digest-only records carry copied principals, CSRF state, absolute expiry and nonreused originating-session IDs. Strict same-origin/CSRF mutations and session/principal checks gate admission; logout invalidates its session before transport cleanup, account mutations invalidate only the affected account, and ongoing currentness is authoritative. Authentication initialization failure gates HTTPS; failed start/accepted stop wipes records. RNG/SHA/database calls run outside short spinlocks with post-call epoch/identity revalidation. [Authentication contract](../web_administration.md#authentication-and-admission).
@@ -122,6 +122,12 @@ Cookie login/logout replaces Basic/cache. Digest-only records carry copied princ
`web_server_replace_identity` reserves service before identity and retains both through commit → reserved stop/start. Direct security and canonical CLI/browser-shell paths share task-bound nonreused identity reservations. Crypto/NVS run outside short security/service locks; commit precedes publication/wipe. Precommit failure leaves identity/HTTPD/logins unchanged; postcommit lifecycle failure never rolls back identity and can leave served/stored fingerprints different. Failed stop skips start and retains canonical recovery. Public service/security projections are separate observations, not authorization. [HTTPS ownership, generation and recovery contract](../web_administration.md#https-and-reboot).
### Admin firmware upload
`web_firmware_update` streams a raw admin-only application image through HTTPD into the inactive OTA slot using standard ESP-IDF APIs. Existing Origin/CSRF/session checks precede body IO; raw length is bounded before HTTPD's narrowed length is trusted, SDK image validation and final principal currentness precede boot selection. One 4KiB buffer and a transient reboot task bound application storage; NVS and partition layout are untouched. HTTPD is occupied during upload, so normal web traffic can stall; deadlines bound receive progress, not flash-operation latency.
The server transition and identity reservations exclude competing lifecycle work. A separate atomic gate excludes ordinary reboot paths without depending on HTTPS initialization, preserving UART0 recovery. Successful response schedules delayed reset while retaining reservations; failed response after selection retains the selected-image latch but releases resources for manual reboot. A subsequent upload is refused until reset. No automatic retry, rollback, signing infrastructure or dependency patching. [Contract and validation limits](../roadmap.md#phase-10--simple-admin-web-firmware-upload).
### SSH
Typed SSH settings use the existing ID dispatcher and original-login result slot, never HTTPD wolfSSH calls or owner waits. Conditional lifecycle/session controls compare a saturated service generation and exact nonreused session ID under canonical locks. `ssh_transport_replace_identity` reserves service then identity before stop, retaining the command mutex across stop → commit → conditional restart. Failed stop skips mutation/start; failed persistence may follow disconnection; committed identity is never rolled back after restart failure. Only the SSH owner frees context after all slots retire, and start rejects orphan handles. Direct security/CLI/deferred SSH callers share task-bound identity reservations; crypto/NVS run outside security locks. HTTPS remains available, so no self-cutting HTTP ACK gate is needed. [SSH contracts](../web_administration.md#ssh).