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Fallback for STUN packets

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This commit is contained in:
Simon Walton 2019-05-30 11:41:12 -07:00
parent d620d3511f
commit bffd87b331
1 changed files with 4 additions and 3 deletions
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7
tools/dissectors/1-hfudt.lua
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@ -167,9 +167,10 @@ local RFC_5389_MAGIC_COOKIE = 0x2112A442
function p_hfudt.dissector(buf, pinfo, tree)
-- make sure this isn't a STUN packet - those don't follow HFUDT format
-- if pinfo.dst == Address.ip("stun.highfidelity.io") then return end
if buf:len() >= 8 and buf(4, 4):uint() == RFC_5389_MAGIC_COOKIE then return end
-- make sure this isn't a STUN packet - those don't follow HFUDT format
if buf:len() >= 8 and buf(4, 4):uint() == RFC_5389_MAGIC_COOKIE then
return 0
end
-- validate that the packet length is at least the minimum control packet size
if buf:len() < 4 then return end