ESP8266 Sniffer sketch which outputs PCAP data via Serial. Max packet size is 128 bytes. Use the sniffer to stream 802.11 packets from ESP8266 to Wireshark or dump into a PCAP file.
A fork of esp8266_pcap_serial which strips out wifi_pkt_rx_ctrl_t struct before streaming to wireshark. It still streams up to 128 bytes only, since this is a SDK limitation. For unlimited buffer size, refer to my ESP_RTOS sniffer.
To use this sniffer, flash the ESP8266 with this sketch, run the SerialShark.py script, and reset the ESP8266 to start sniffing.
Note: Only 802.11 packets are sniffed atm. Change to your liking.
Load the sketch to your Arduino IDE and flash your ESP8266-based device. You must install ArduinoPcap library first.
Run SerialShark.py to forward the PCAP stream from the ESP8266 to Wireshark:
~/Arduino/libraries/ArduinoPcap/extras/SerialShark.py