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do
-- satp example
-- declare our protocol
satp_proto = Proto("SATP","Secure Anycast Tunneling Protocol")
-- create a function to dissect it
function satp_proto.dissector(buffer,pinfo,tree)
pinfo.cols.protocol = "SATP"
local subtree = tree:add(satp_proto,buffer(),"SATP, Sender Id: " .. buffer(4,2):uint() .. ", Mux: " .. buffer(6,2):uint() .. ", SeqNr: " .. buffer(0,4):uint())
subtree:add(buffer(0,4),"Sequence Number: " .. buffer(0,4):uint())
subtree:add(buffer(4,2),"Sender ID: " .. buffer(4,2):uint())
subtree:add(buffer(6,2),"Mux: " .. buffer(6,2):uint())
subtree:add(buffer(8,2),"Payload Type: " .. buffer(8,2):uint())
local data_dis = Dissector.get("data")
local payload_dis = Dissector.get("ip")
if payload_dis ~= nil then
payload_dis:call(buffer(10):tvb(),pinfo,tree)
else
data_dis:call(buffer(10):tvb(),pinfo,tree)
end
end
-- load the udp.port table
udp_table = DissectorTable.get("udp.port")
-- register our protocol to handle udp port 4444
udp_table:add(4444,satp_proto)
end
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