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more lwIP physical interfaces (#6680)

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This commit adds W5500 W5100 and ENC28j60 drivers from @njh with credits
They are available in libraries/
An example is added in W5500 examples directory

plus:
* Extract dhcp server from lwip2 and add it to the core as a class.
  It must always be present, it is linked and can be called by fw on boot.
  So it cannot be stored in a library.
* ethernet: static or dhcp works
* PPPServer: example
* bring WiFi.config() to the lwIP generic interface (argument reorder common function)
* move hostname() from WiFI-STA to generic interface
* remove non readable characters from dhcp-server comments
* dhcp-server: magic_cookie is part of bootp rfc
* fixes from https://github.com/d-a-v/W5500lwIP/issues/17
* enable lwip_hook_dhcp_parse_option()
* +ethernet tcp client example in w5500 library examples
This commit is contained in:
david gauchard
2020-12-22 22:36:21 +01:00
committed by GitHub
parent 35d22edeec
commit 51c2a1437b
57 changed files with 8113 additions and 156 deletions
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111
libraries/lwIP_PPP/examples/PPPServer/PPPServer.ino Normal file
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// This is still beta / a work in progress
// To run this sketch an (other) USB-serial converter is needed connected to RX-TX ports (below)
// hardware serial is used for logging
// software serial is used for the PPP link
// this example is subject for changes once everything is stabilized
// testing on linux:
// sudo /usr/sbin/pppd /dev/ttyUSB1 38400 noipdefault nocrtscts local defaultroute noauth nodetach debug dump
// sudo /usr/sbin/pppd /dev/ttyUSB1 38400 noipdefault nocrtscts local defaultroute noauth
// proxy arp is needed but we don't have it
// http://lwip.100.n7.nabble.com/PPP-proxy-arp-support-tp33286p33345.html
// using NAT instead
#if LWIP_FEATURES && !LWIP_IPV6
#include <lwip/napt.h>
#include <lwip/dns.h>
#include <PPPServer.h>
#include <dhcpserver.h>
#include <ESP8266WiFi.h>
#include <SoftwareSerial.h>
#ifndef STASSID
#define STASSID "your-ssid"
#define STAPSK "your-password"
#endif
#define LOGGERBAUD 115200
#define PPPLINKBAUD 38400
#define NAPT 200
#define NAPT_PORT 3
#define RX 13 // d1mini D7
#define TX 15 // d1mini D8
SoftwareSerial ppplink(RX, TX);
HardwareSerial& logger = Serial;
PPPServer ppp(&ppplink);
void PPPConnectedCallback(netif* nif) {
logger.printf("ppp: ip=%s/mask=%s/gw=%s\n",
IPAddress(&nif->ip_addr).toString().c_str(),
IPAddress(&nif->netmask).toString().c_str(),
IPAddress(&nif->gw).toString().c_str());
logger.printf("Heap before: %d\n", ESP.getFreeHeap());
err_t ret = ip_napt_init(NAPT, NAPT_PORT);
logger.printf("ip_napt_init(%d,%d): ret=%d (OK=%d)\n", NAPT, NAPT_PORT, (int)ret, (int)ERR_OK);
if (ret == ERR_OK) {
ret = ip_napt_enable_no(nif->num, 1);
logger.printf("ip_napt_enable(nif): ret=%d (OK=%d)\n", (int)ret, (int)ERR_OK);
if (ret == ERR_OK) {
logger.printf("PPP client is NATed\n");
}
// could not make this work yet,
// but packets are arriving on ppp client (= linux host)
logger.printf("redirect22=%d\n", ip_portmap_add(IP_PROTO_TCP, ip_2_ip4(&nif->ip_addr)->addr, 22, ip_2_ip4(&nif->gw)->addr, 22));
logger.printf("redirect80=%d\n", ip_portmap_add(IP_PROTO_TCP, ip_2_ip4(&nif->ip_addr)->addr, 80, ip_2_ip4(&nif->gw)->addr, 80));
logger.printf("redirect443=%d\n", ip_portmap_add(IP_PROTO_TCP, ip_2_ip4(&nif->ip_addr)->addr, 443, ip_2_ip4(&nif->gw)->addr, 443));
}
logger.printf("Heap after napt init: %d\n", ESP.getFreeHeap());
if (ret != ERR_OK) {
logger.printf("NAPT initialization failed\n");
}
}
void setup() {
logger.begin(LOGGERBAUD);
WiFi.persistent(false);
WiFi.mode(WIFI_STA);
WiFi.begin(STASSID, STAPSK);
while (WiFi.status() != WL_CONNECTED) {
logger.print('.');
delay(500);
}
logger.printf("\nSTA: %s (dns: %s / %s)\n",
WiFi.localIP().toString().c_str(),
WiFi.dnsIP(0).toString().c_str(),
WiFi.dnsIP(1).toString().c_str());
ppplink.begin(PPPLINKBAUD);
ppplink.enableIntTx(true);
logger.println();
logger.printf("\n\nhey, trying to be a PPP server here\n\n");
logger.printf("Now try this on your linux host:\n\n");
logger.printf("connect a serial<->usb module (e.g. to /dev/ttyUSB1) and link it to the ESP (esprx=%d esptx=%d), then run:\n\n", RX, TX);
logger.printf("sudo /usr/sbin/pppd /dev/ttyUSB1 %d noipdefault nocrtscts local defaultroute noauth nodetach debug dump\n\n", PPPLINKBAUD);
ppp.ifUpCb(PPPConnectedCallback);
bool ret = ppp.begin(WiFi.localIP());
logger.printf("ppp: %d\n", ret);
}
#else
void setup() {
Serial.begin(115200);
Serial.printf("\n\nPPP/NAPT not supported in this configuration\n");
}
#endif
void loop() {
}