185 lines
6.1 KiB
C
185 lines
6.1 KiB
C
/*
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* Copyright 2016 Dius Computing Pty Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of the copyright holders nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @author Johny Mattsson <jmattsson@dius.com.au>
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*/
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#include "module.h"
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#include "lauxlib.h"
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#include "lextra.h"
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#include "wifi_common.h"
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#include "ip_fmt.h"
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#include "nodemcu_esp_event.h"
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#include <string.h>
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// Note: these are documented in wifi.md, update there too if changed here!
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#define DEFAULT_AP_CHANNEL 11
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#define DEFAULT_AP_MAXCONNS 4
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#define DEFAULT_AP_BEACON 100
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// --- Event handling ----------------------------------------------------
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static void ap_staconn (lua_State *L, const system_event_t *evt);
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static void ap_stadisconn (lua_State *L, const system_event_t *evt);
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static void ap_probe_req (lua_State *L, const system_event_t *evt);
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static void empty_arg (lua_State *L, const system_event_t *evt) {}
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static const event_desc_t events[] =
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{
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{ "start", SYSTEM_EVENT_AP_START, empty_arg },
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{ "stop", SYSTEM_EVENT_AP_STOP, empty_arg },
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{ "sta_connected", SYSTEM_EVENT_AP_STACONNECTED, ap_staconn },
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{ "sta_disconnected", SYSTEM_EVENT_AP_STADISCONNECTED, ap_stadisconn },
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{ "probe_req", SYSTEM_EVENT_AP_PROBEREQRECVED, ap_probe_req }
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};
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static int event_cb[ARRAY_LEN(events)];
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static void ap_staconn (lua_State *L, const system_event_t *evt)
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{
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char mac[MAC_STR_SZ];
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macstr (mac, evt->event_info.sta_connected.mac);
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lua_pushstring (L, mac);
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lua_setfield (L, -2, "mac");
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lua_pushinteger (L, evt->event_info.sta_connected.aid);
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lua_setfield (L, -2, "id");
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}
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static void ap_stadisconn (lua_State *L, const system_event_t *evt)
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{
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char mac[MAC_STR_SZ];
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macstr (mac, evt->event_info.sta_disconnected.mac);
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lua_pushstring (L, mac);
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lua_setfield (L, -2, "mac");
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lua_pushinteger (L, evt->event_info.sta_disconnected.aid);
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lua_setfield (L, -2, "id");
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}
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static void ap_probe_req (lua_State *L, const system_event_t *evt)
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{
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char str[MAC_STR_SZ];
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macstr (str, evt->event_info.ap_probereqrecved.mac);
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lua_pushstring (L, str);
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lua_setfield (L, -2, "from");
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lua_pushinteger (L, evt->event_info.ap_probereqrecved.rssi);
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lua_setfield (L, -2, "rssi");
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}
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static void on_event (const system_event_t *evt)
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{
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int idx = wifi_event_idx_by_id (events, ARRAY_LEN(events), evt->event_id);
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if (idx < 0 || event_cb[idx] == LUA_NOREF)
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return;
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lua_State *L = lua_getstate ();
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lua_rawgeti (L, LUA_REGISTRYINDEX, event_cb[idx]);
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lua_pushstring (L, events[idx].name);
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lua_createtable (L, 0, 5);
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events[idx].fill_cb_arg (L, evt);
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lua_call (L, 2, 0);
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}
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_AP_START, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_AP_STOP, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_AP_STACONNECTED, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_AP_STADISCONNECTED, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_AP_PROBEREQRECVED, on_event);
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void wifi_ap_init (void)
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{
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for (unsigned i = 0; i < ARRAY_LEN(event_cb); ++i)
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event_cb[i] = LUA_NOREF;
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}
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// --- Lua API funcs -----------------------------------------------------
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static int wifi_ap_config (lua_State *L)
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{
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luaL_checkanytable (L, 1);
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bool save = luaL_optbool (L, 2, DEFAULT_SAVE);
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wifi_config_t cfg;
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memset (&cfg, 0, sizeof (cfg));
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lua_getfield (L, 1, "ssid");
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size_t len;
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const char *str = luaL_checklstring (L, -1, &len);
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if (len > sizeof (cfg.ap.ssid))
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len = sizeof (cfg.ap.ssid);
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strncpy ((char *)cfg.ap.ssid, str, len);
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cfg.ap.ssid_len = len;
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lua_getfield (L, 1, "pwd");
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str = luaL_optlstring (L, -1, "", &len);
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if (len > sizeof (cfg.ap.password))
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len = sizeof (cfg.ap.password);
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strncpy ((char *)cfg.ap.password, str, len);
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lua_getfield (L, 1, "auth");
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int authmode = luaL_optint (L, -1, WIFI_AUTH_WPA2_PSK);
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if (authmode < 0 || authmode >= WIFI_AUTH_MAX)
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return luaL_error (L, "unknown auth mode %d", authmode);
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cfg.ap.authmode = authmode;
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lua_getfield (L, 1, "channel");
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cfg.ap.channel = luaL_optint (L, -1, DEFAULT_AP_CHANNEL);
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lua_getfield (L, 1, "hidden");
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cfg.ap.ssid_hidden = luaL_optbool (L, -1, false);
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lua_getfield (L, 1, "max");
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cfg.ap.max_connection = luaL_optint (L, -1, DEFAULT_AP_MAXCONNS);
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lua_getfield (L, 1, "beacon");
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cfg.ap.beacon_interval = luaL_optint (L, -1, DEFAULT_AP_BEACON);
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SET_SAVE_MODE(save);
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esp_err_t err = esp_wifi_set_config (WIFI_IF_AP, &cfg);
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return (err == ESP_OK) ?
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0 : luaL_error (L, "failed to set wifi config, code %d", err);
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}
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static int wifi_ap_on (lua_State *L)
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{
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return wifi_on (L, events, ARRAY_LEN(events), event_cb);
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}
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const LUA_REG_TYPE wifi_ap_map[] =
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{
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{ LSTRKEY( "config" ), LFUNCVAL( wifi_ap_config ) },
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{ LSTRKEY( "on" ), LFUNCVAL( wifi_ap_on ) },
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{ LNILKEY, LNILVAL }
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};
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