panki/esp-scandetect
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use the ring

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This commit is contained in:
Felix Pankratz 2023-10-29 15:35:54 +01:00
parent 0e724eb5b1
commit 77773661d5
2 changed files with 67 additions and 8 deletions
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4
src/lwip_hooks.c
View File

@ -1,6 +1,6 @@
// file: <src/lwip_hooks.c>
#include "lwip_hooks.h"
extern void log_packet(uint16_t);
extern void log_packet(uint16_t, u16_t);
const char *get_protocol(u16_t type)
{
@ -44,7 +44,7 @@ int lwip_hook_ip4_input(struct pbuf *pbuf, struct netif *input_netif)
ESP_LOGI("HOOK", "%s: %s %u",
get_protocol((u16_t)IPH_PROTO(iphdr)), ip_address, port);
log_packet(port);
log_packet(port, (u16_t)IPH_PROTO(iphdr));
return ESP_OK;
}

71
src/main.cpp
View File

@ -3,20 +3,73 @@
#include "WiFi.h"
#include <Adafruit_Neopixel.h>
#define NUMPIXELS 1
#define PIN_NEOPIXEL 39
#define NUMPIXELS 8
#define PIN_NEOPIXEL_ONBOARD 39
#define PIN_NEOPIXEL 9
#define NEOPIXEL_POWER 38
#define PROTO_ICMP 1
#define PROTO_TCP 6
#define PROTO_UDP 17
char ssid[] = "MyWifi"; // your network SSID (name)
char pass[] = "MyPassphrase"; // your network password (use for WPA, or use as key for WEP)
Adafruit_NeoPixel pixels(NUMPIXELS, PIN_NEOPIXEL, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel onboard_pixel(1, PIN_NEOPIXEL_ONBOARD, NEO_GRB + NEO_KHZ800);
void ssh_attempt() {
printf("Someone connected to SSH!");
pixels.fill(pixels.Color(255, 0, 0));
pixels.show();
delay(200);
pixels.clear();
pixels.show();
delay(100);
pixels.fill(pixels.Color(255, 0, 0));
pixels.show();
delay(200);
pixels.fill(pixels.Color(0,0,0));
pixels.show();
}
void icmp_ping() {
pixels.setPixelColor(2, pixels.Color(255, 255, 255));
pixels.setPixelColor(3, pixels.Color(255, 255, 255));
pixels.setPixelColor(6, pixels.Color(255, 255, 255));
pixels.setPixelColor(7, pixels.Color(255, 255, 255));
pixels.show();
delay(100);
pixels.setPixelColor(2, 0);
pixels.setPixelColor(3, 0);
pixels.setPixelColor(6, 0);
pixels.setPixelColor(7, 0);
pixels.show();
}
extern "C" {
void log_packet(uint16_t port) {
void log_packet(uint16_t port, u16_t proto) {
if (WiFi.status() == WL_CONNECTED) {
pixels.rainbow(port);
pixels.show();
uint32_t color = pixels.ColorHSV(port);
switch (proto) {
case PROTO_ICMP:
icmp_ping();
break;
case PROTO_TCP:
if (port == 22) {
ssh_attempt();
} else {
pixels.setPixelColor(0, color);
pixels.setPixelColor(1, color);
pixels.show();
}
break;
case PROTO_UDP:
pixels.setPixelColor(4, color);
pixels.setPixelColor(5, color);
pixels.show();
break;
}
}
}
}
@ -33,14 +86,20 @@ extern "C" void app_main()
digitalWrite(NEOPIXEL_POWER, HIGH);
#endif
pixels.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
onboard_pixel.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
pixels.setBrightness(20); // not so bright
onboard_pixel.setBrightness(20);
printf("Connecting");
onboard_pixel.fill(onboard_pixel.Color(255, 255, 0));
onboard_pixel.show();
WiFi.begin(ssid, pass);
while (WiFi.status() != WL_CONNECTED) {
while (WiFi.status() != WL_CONNECTED) {
delay(500);
printf(".");
}
onboard_pixel.fill(onboard_pixel.Color(0, 255, 0));
onboard_pixel.show();
printf("\nConnected!\n");
printf("SSID: %s\n", WiFi.SSID().c_str());
printf("IP: %s\n", WiFi.localIP().toString().c_str());