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--
-- (C) 2020-22 - ntop.org
--
-- This file contains DSCP constats
local dscp_consts = {}
-- ################################################################################
local DSCP = {
[0x00] = "Best Effort [CS0]",
[0x01] = "LE",
[0x08] = "Priority [CS1]",
[0x0A] = "Priority [AF11]",
[0x0C] = "Priority [AF12]",
[0x0E] = "Priority [AF13]",
[0x10] = "Immediate [CS2]",
[0x12] = "Immediate [AF21]",
[0x14] = "Immediate [AF22]",
[0x16] = "Immediate [AF23]",
[0x18] = "Flash/Voice [CS3]",
[0x1A] = "Flash/Voice [AF31]",
[0x1C] = "Flash/Voice [AF32]",
[0x1E] = "Flash/Voice [AF33]",
[0x20] = "Flash Override [CS4]",
[0x22] = "Flash Override [AF41]",
[0x24] = "Flash Override [AF42]",
[0x26] = "Flash Override [AF43]",
[0x28] = "Critical [CS5]",
[0x2E] = "Critical [EF]",
[0x30] = "Internetwork Control [CS6]",
[0x38] = "Network Control [CS7]"
}
local DSCP_class = {
[0x00] = "cs0",
[0x08] = "cs1", [0x0A] = "cs1", [0x0C] = "cs1", [0x0E] = "cs1",
[0x10] = "cs2", [0x12] = "cs2", [0x14] = "cs2", [0x16] = "cs2",
[0x18] = "cs3", [0x1A] = "cs3", [0x1C] = "cs3", [0x1E] = "cs3",
[0x20] = "cs4", [0x22] = "cs4", [0x24] = "cs4", [0x26] = "cs4",
[0x28] = "cs5", [0x2E] = "cs5",
[0x30] = "cs6",
[0x38] = "cs7",
[0x01] = "LE",
}
local ECN = {
[0x00] = "Disabled (0)",
[0x01] = "Enabled (1)",
[0x02] = "Default (2)",
[0x03] = "CE"
}
local DS_class = {
['cs0'] = "Best Effort", -- DS 0
['cs1'] = "Priority", -- DS 8,10,12,14
['cs2'] = "Immediate", -- DS 16,18,20,22
['cs3'] = "Flash", -- DS 24,26,28,30
['cs4'] = "Flash Override", -- DS 32,34,36,38
['cs5'] = "Critical", -- DS 40,46
['cs6'] = "Internetwork Control", -- DS 48
['cs7'] = "Network Control", -- DS 56
['le'] = "LE", -- LE
['unknown'] = "Unknown"
}
function dscp_consts.dscp_descr(id)
local descr = DSCP[tonumber(id)]
if descr == nil then
descr = "Unknown ["..id.."]"
end
return descr
end
function dscp_consts.ecn_descr(id)
local descr = ECN[id]
if descr == nil then
descr = "Unknown ("..id..")"
end
return descr
end
function dscp_consts.ds_class_descr(id)
local descr = DS_class[id]
if descr == nil then
descr = "Unknown"
end
if id:find("^cs") then
descr = descr.." ("..string.upper(id)..")"
end
return descr
end
function dscp_consts.dscp_class_descr(id)
local class = DSCP_class[tonumber(id)]
if class == nil then
class = "unknown"
end
return dscp_consts.ds_class_descr(class)
end
function dscp_consts.dscp_class_list()
local dscp_list = {}
for k, v in pairs(DSCP) do
dscp_list[k] = {}
dscp_list[k]["id"] = k
dscp_list[k]["label"] = v
end
return dscp_list
end
return dscp_consts
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