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-- Simple LUA script to print the size of BSSGP messages over their type...
do
local ip_bucket = {}
local pdu_types = {}
pdu_types[ 6] = "PAGING"
pdu_types[11] = "SUSPEND"
pdu_types[12] = "SUSPEND-ACK"
pdu_types[32] = "BVC-BLOCK"
pdu_types[33] = "BVC-BLOCK-ACK"
pdu_types[34] = "BVC-RESET"
pdu_types[35] = "BVC-RESET-ACK"
pdu_types[36] = "UNBLOCK"
pdu_types[37] = "UNBLOCK-ACK"
pdu_types[38] = "FLOW-CONTROL-BVC"
pdu_types[39] = "FLOW-CONTROL-BVC-ACK"
pdu_types[40] = "FLOW-CONTROL-MS"
pdu_types[41] = "FLOW-CONTROL-MS-ACK"
pdu_types[44] = "LLC-DISCARDED"
local function init_listener()
-- handle the port as NS over IP
local udp_port_table = DissectorTable.get("udp.port")
local gprs_ns_dis = Dissector.get("gprs_ns")
udp_port_table:add(23000,gprs_ns_dis)
-- bssgp filters
local bssgp_pdu_get = Field.new("bssgp.pdu_type")
local udp_length_get = Field.new("udp.length")
local tap = Listener.new("ip", "udp.port == 23000")
function tap.packet(pinfo,tvb,ip)
local pdu = bssgp_pdu_get()
local len = udp_length_get()
-- only handle bssgp, but we also want the IP frame
if not pdu then
return
end
pdu = tostring(pdu)
if tonumber(pdu) == 0 or tonumber(pdu) == 1 then
return
end
local ip_src = tostring(ip.ip_src)
local bssgp_histo = ip_bucket[ip_src]
if not bssgp_histo then
bssgp_histo = {}
ip_bucket[ip_src] = bssgp_histo
end
local key = pdu
local bucket = bssgp_histo[key]
if not bucket then
bucket = {}
bssgp_histo[key] = bucket
end
table.insert(bucket, tostring(len))
print("IP: " .. ip_src .. " PDU: " .. pdu_types[tonumber(pdu)] .. " Length: " .. tostring(len))
end
function tap.draw()
-- well... this will not be called...
-- for ip,bssgp_histo in pairs(dumpers) do
-- print("IP " .. ip)
-- end
end
function tap.reset()
-- well... this will not be called...
end
end
init_listener()
end
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