call pcap_list_datalinks() to get the list of data link layers supported, and fail if that fails.get the default data link type by calling pcap_datalink().call pcap_activate() and fail if that fails.if the device supports monitor mode, and get_if_capabilities() was told to determine the capabilities when in monitor mode, turn on monitor mode.check whether the device is a Linux bonding device, which will never be the case on Windows, and if it's not, will call pcap_can_set_rfmon() to determine whether the device supports monitor mode, and fail if that call reports an error (rather than "yes" or "no").call pcap_create() to try to open the device, and fail if the device can't be opened.
In the 2.6 Windows version of Wireshark, that, and routines it calls, will: The routine get_if_capabilities() in caputils/capture-pcap-util.c is the routine that actually gets the interface's capabilities. (that's macOS, running on the Wi-Fi interface on my MacBook Pro it supports monitor mode, and can return any of the header types in question). $ dumpcap -i en0 -L -list-time-stamp-types -I -Mġ27 IEEE802_11_RADIO 802.11 plus radiotap headerġ63 IEEE802_11_RADIO_AVS 802.11 plus AVS radio information header
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