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path: root/main/tollgate_api.c
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2026-05-16Captive portal detection fix + Phase 2 tests 16-18,20 passing (17/17)Your Name
- 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)
2026-05-16Phase 2 WIP: token decode works, TLS checkstate succeeds (crashes after ↵Your Name
response) - cashu.c: dynamic json_buf sizing (was 2048 stack, now heap based on token length) - cashu.c: strip trailing newline/CR from token input (cashu CLI appends 'Balance: 0 sat') - cashu.c: esp_crt_bundle_attach for HTTPS to mint API - cashu.c: esp_http_client_open/write/fetch_headers/read pattern for HTTPS POST - cashu.c: remove debug b64url_decode logging - tollgate_api.c: loop httpd_req_recv for full body (was single call, missed TCP segments) - tollgate_api.c: stack_size=32768 for TLS in httpd handler - config.c: fix default mint URL from nofee.testnut to testnut.cashu.space - CMakeLists.txt: add esp-tls dependency for cert bundle - CHECKLIST.md: updated with infrastructure status and TDD plan Known issue: device reboots after checkstate returns 966 bytes with status=200. Crash likely in post-response processing (JSON parse or session create).
2026-05-15Fix stack overflow and heap-allocate large buffers in Cashu/payment pathYour Name
- tollgate_api.c: increase httpd stack_size to 16384 (was default 4096) - cashu.c: heap-allocate b64, json_buf, post_body, resp_buf instead of stack - cashu.c: proper free() on all error paths - Makefile: replace Go-based tokens target with nutshell wallet targets - Makefile: add wallet-setup, wallet-info, wallet-balance, mint-token, send-token
2026-05-15Phase 2 WIP: Cashu payment endpoints, session tracking, updated checklistYour Name
- 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)