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- CMakeLists.txt: add 6 mining sources + tcp_transport dependency
- config.h/c: mining_payout_mode_t enum, mining config fields, JSON parsing
- tollgate_main.c: mining init in start_services(), stratum_client_tick in main loop
- tollgate_api.c: GET /mining/job, POST /mining/share, GET /mining/stats endpoints
- session.h/c: payment_method_t enum (CASHU/MINING/BYTES)
- firewall.h/c: sandbox allowlist for mining port + mint URLs
- tollgate_client.h/c: TG_CLIENT_MINING state, mining discovery tag parsing
- captive_portal.c: tabbed UI with Cashu/Mine tabs, live hashrate polling
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Complete CVM implementation: persistent WebSocket relay listener,
kind 25910 event subscription, MCP protocol handlers, CEP-6 announcements,
10 MCP tools, per-board hardware locks, WiFi EU regulatory fix.
Architecture:
- cvm_server.c: WS relay listener, kind 25910 subscription, MCP dispatch
- mcp_handler.c/h: 10 MCP tools (get_config, set_config, get_balance,
wallet_send, get_sessions, get_usage, set_payout, set_metric,
set_price, wallet_melt)
- Responses published via existing WS connection (not new TLS)
- Auth check: only owner npub accepted
- CEP-6: kinds 11316 (server), 11317 (tools), 10002 (relay list)
- WS ping/pong keepalive every 30s, 60s TLS read timeout
Critical fixes:
- WiFi country code DE (ESP-IDF defaults to CN, breaks EU APs)
- Subscription #p filter must be array not string
- Use-after-free: tags_str freed before nostr_event_to_json
- MCP responses via existing WS (ESP32 can't open multiple TLS)
- EVENT msg buffer underflow, WS frame masking, TLS write loop
Per-board hardware locks:
- Lock files in physical-router-test-automation/locks/
- lock-a/b/c, unlock-a/b/c targets in 3 Makefiles
- All hardware-touching targets require board lock
Verified on Board B via relay.primal.net:
- 282 unit tests passing (61 CVM + 60 MCP + 161 existing)
- MCP initialize roundtrip: PASS
- tools/list: PASS
- tools/call get_config: PASS
- tools/call get_balance: PASS
- tools/call set_price: PASS (write operation)
- CEP-6 announcements (11316, 11317, 10002): all accepted by relay
- WiFi STA connection (EnterSSID-2.4GHz): PASS with country code DE
- Board A WiFi confirmed hardware issue (not firmware)
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- Add lwip_tollgate_hooks.h defining LWIP_HOOK_IP4_CANFORWARD macro
- Inject hook into lwIP build via CMakeLists.txt ESP_IDF_LWIP_HOOK_FILENAME
- Filter forwarded packets by source IP against firewall allowed list
- Only filter packets from AP subnet (10.192.45.0/24), allow all others
- Fix byte order bug: use network byte order for firewall_is_client_allowed
- NAT always enabled, removed global NAT toggle functions
- Remove spent-secret tracking from session.c (mint is authority)
- Remove unused get_ap_netif() function
- Reduce API server stack from 32KB to 16KB (fixes ESP_ERR_HTTPD_TASK)
- Add esp_random.h stub for unit tests
- All 186 unit tests passing
- Verified on hardware: block->pay->allow->revoke->block E2E works
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- session_create_bytes() + session_add_bytes() for bytes-metric sessions
- session_is_expired() dispatches on config metric (bytes vs milliseconds)
- cashu_calculate_allotment() unified dispatcher for both metrics
- tollgate_api discovery/usage/session_event use configured metric
- config: metric field defaults to 'bytes', step_size_bytes=22020096 (21MB)
- 14 new unit tests (148 total passing)
- ASSERT_EQ_UINT64 macro added to test framework
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- Expand esp_http_client.h stub: full config struct + method enum + init/perform/cleanup
- Add portTICK_PERIOD_MS + esp_err_to_name to stubs
- session.c: reject duplicate spent secrets in session_create (double-spend protection)
- .gitignore: add test binaries
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- Add DoT reject server on port 853 (TCP RST forces DNS-over-TLS fallback)
- DNS hijack returns NXDOMAIN for all non-A query types (no forwarding for unauthed)
- Shorter TTL on hijack responses (10s) for faster captive detection
- Explicit 302 redirect handlers for /generate_204, /hotspot-detect.html, etc.
- HTTP and DNS request logging for debugging captive detection
- Per-MAC tracking in firewall (find_by_mac, get_mac_for_ip with ARP fallback)
- Session MAC tracking (session_find_by_mac)
- Phase 2 test 18: add route through TollGate before ping test
- All 17 Phase 2 tests pass (15-21 + whoami + portal form)
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- Add cashu.c/h: Cashu token decode (cashuA/base64url), proof state check via mint API, allotment calculator
- Add session.c/h: time-based session management with allotment/expiry, spent secret tracking
- Add tollgate_api.c/h: HTTP server on :2121 with GET / (kind=10021 discovery), POST / (payment processing), /usage, /whoami
- Update captive portal HTML: replace Grant Free Access with Cashu token paste form + Pay & Connect button
- Update tollgate_main.c: wire in session manager, TollGate API, 1s session tick loop
- Add tests/phase2.mjs: Phase 2 test suite (discovery, invalid token, wrong mint, valid payment)
- Update CHECKLIST.md: reflect Phase 1 complete, Phase 2 in progress with known bugs
Known issues (not yet flashed):
- Stack overflow crash in httpd POST handler (need stack_size=16384 + heap allocations)
- cashu_decode_token uses 2KB stack buffer (needs heap alloc)
- Mint URL should be testnut.cashu.space (nofee.testnut has API compat issues)
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