Class TbxSniffer
An object that will intercept packets
Methods
| TbxSniffer:new (key) | Constructs a new TbxSniffer |
| TbxSniffer:sniffer_callback (pkt) | The callback function for the sniffer |
| TbxSniffer:start ([cb]) | Start sniffing and calls the callback function for each new packet. |
| TbxSniffer:stop () | Stop sniffing |
| TbxSniffer:recv ([timeout]) | Receive a packet |
Methods
- TbxSniffer:new (key)
-
Constructs a new TbxSniffer
Parameters:
- key table a list of arguments that will be passed to iptables
Returns:
Usage:
TbxSniffer.new({'-p', 'tcp', '--dport', '80'}, callback_func) - TbxSniffer:sniffer_callback (pkt)
-
The callback function for the sniffer
Parameters:
- pkt Packet the received packet
Returns:
-
num
x any value but 0 will stop the Sniffer
- TbxSniffer:start ([cb])
-
Start sniffing and calls the callback function for each new packet.
Will never return unless stop is called from another thread or if
it was started in non-blocking mode.
Parameters:
- cb function a function callback, see sniffer_callback, to operate in blokcing mode. Omit to be non-blocking. (optional)
- TbxSniffer:stop ()
- Stop sniffing
- TbxSniffer:recv ([timeout])
-
Receive a packet
Parameters:
- timeout num number of second to wait, can be decimal, or omit to block (optional)
Returns:
-
Packet
p the received packet, or nil if timed out