af0c2da146
Implements first-boot Wi-Fi setup with no companion app required: a SoftAP + captive portal (DNS wildcard redirect, DHCP option 114, HTTP form) lets the user submit Wi-Fi credentials from any browser. On submit, credentials are saved to NVS and the device switches to STA mode; on subsequent boots it reconnects automatically via stored credentials. dns_server.c/.h are vendored from ESP-IDF's official captive_portal example (Unlicense/CC0). Requests both link-local and global IPv6 addresses once the STA connection has an IPv4 address (not on WIFI_EVENT_STA_CONNECTED -- esp_netif_create_ip6_linklocal() reliably fails there because esp-netif's own handler, which marks the lwIP netif "up", hasn't run yet due to event-handler registration order). Verified end-to-end on real ESP32-C6 hardware: SoftAP comes up, credential submission works, STA reconnects on reboot, and both a link-local and a router-assigned global IPv6 address are obtained via SLAAC. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
33 lines
972 B
C++
33 lines
972 B
C++
#pragma once
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namespace kvida {
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enum class CommissioningState {
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Idle,
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ApActive,
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Connecting,
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Connected,
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Failed,
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};
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// Starts a SoftAP + captive portal so the user can submit Wi-Fi
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// credentials from any browser -- no companion app needed. Intended to
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// be triggered by a physical action (e.g. a button press), per the
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// "configuration mode requires physical user interaction" security
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// principle in AGENTS.md. No-op if already active or already connected.
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void start_commissioning();
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// Stops the SoftAP/captive portal (e.g. on timeout, or once connected).
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// Safe to call even if not active.
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void stop_commissioning();
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CommissioningState commissioning_state();
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// Attempts to connect using credentials already stored in NVS from a
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// previous commissioning session. Returns false immediately if none are
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// stored; otherwise the result arrives asynchronously via
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// commissioning_state().
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bool try_stored_credentials();
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} // namespace kvida
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