mirror of
https://github.com/esp8266/Arduino.git
synced 2025-04-25 20:02:37 +03:00
b7c1cfbc45
* works * fixup! works * back to callbacks * names * daisy chain * seconds * less inline * fix dns setter * might as well keep using initlist /to d-a-v it has automatic storage, here it's the same stack based one (just one less line for us) * shift blame * naming * fix impl * revert to ip4 dns * merge fix * restyle * masking done wrong
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
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// NAPT example released to public domain
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#if LWIP_FEATURES && !LWIP_IPV6
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#define HAVE_NETDUMP 0
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#ifndef STASSID
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#define STASSID "mynetwork"
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#define STAPSK "mynetworkpassword"
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#endif
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#include <ESP8266WiFi.h>
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#include <lwip/napt.h>
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#include <lwip/dns.h>
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#define NAPT 1000
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#define NAPT_PORT 10
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#if HAVE_NETDUMP
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#include <NetDump.h>
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void dump(int netif_idx, const char* data, size_t len, int out, int success) {
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(void)success;
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Serial.print(out ? F("out ") : F(" in "));
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Serial.printf("%d ", netif_idx);
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// optional filter example: if (netDump_is_ARP(data))
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{
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netDump(Serial, data, len);
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// netDumpHex(Serial, data, len);
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}
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}
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#endif
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void setup() {
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Serial.begin(115200);
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Serial.printf("\n\nNAPT Range extender\n");
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Serial.printf("Heap on start: %d\n", ESP.getFreeHeap());
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#if HAVE_NETDUMP
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phy_capture = dump;
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#endif
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// first, connect to STA so we can get a proper local DNS server
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WiFi.mode(WIFI_STA);
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WiFi.begin(STASSID, STAPSK);
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while (WiFi.status() != WL_CONNECTED) {
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Serial.print('.');
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delay(500);
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}
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Serial.printf("\nSTA: %s (dns: %s / %s)\n", WiFi.localIP().toString().c_str(), WiFi.dnsIP(0).toString().c_str(), WiFi.dnsIP(1).toString().c_str());
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// By default, DNS option will point to the interface IP
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// Instead, point it to the real DNS server.
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// Notice that:
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// - DhcpServer class only supports IPv4
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// - Only a single IP can be set
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auto& server = WiFi.softAPDhcpServer();
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server.setDns(WiFi.dnsIP(0));
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WiFi.softAPConfig( // enable AP, with android-compatible google domain
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IPAddress(172, 217, 28, 254), IPAddress(172, 217, 28, 254), IPAddress(255, 255, 255, 0));
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WiFi.softAP(STASSID "extender", STAPSK);
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Serial.printf("AP: %s\n", WiFi.softAPIP().toString().c_str());
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Serial.printf("Heap before: %d\n", ESP.getFreeHeap());
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err_t ret = ip_napt_init(NAPT, NAPT_PORT);
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Serial.printf("ip_napt_init(%d,%d): ret=%d (OK=%d)\n", NAPT, NAPT_PORT, (int)ret, (int)ERR_OK);
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if (ret == ERR_OK) {
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ret = ip_napt_enable_no(SOFTAP_IF, 1);
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Serial.printf("ip_napt_enable_no(SOFTAP_IF): ret=%d (OK=%d)\n", (int)ret, (int)ERR_OK);
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if (ret == ERR_OK) { Serial.printf("WiFi Network '%s' with same password is now NATed behind '%s'\n", STASSID "extender", STASSID); }
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}
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Serial.printf("Heap after napt init: %d\n", ESP.getFreeHeap());
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if (ret != ERR_OK) { Serial.printf("NAPT initialization failed\n"); }
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}
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#else
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void setup() {
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Serial.begin(115200);
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Serial.printf("\n\nNAPT not supported in this configuration\n");
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}
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#endif
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void loop() {}
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