easylinux/cam-reverse
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add framed headers

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This commit is contained in:
David Ventura
2024-05-02 20:53:33 +02:00
parent 80e50560e6
commit f9e2dc63dc
1 changed files with 17 additions and 0 deletions
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dissector.lua
+17
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@@ -26,6 +26,11 @@ ilnk_proto.fields.payload_len = ProtoField.uint32("iLnkP2P.payload_len", "Payl
ilnk_proto.fields.frame_no = ProtoField.uint32("iLnkP2P.frame_no", "Frame no")
-- audio
ilnk_proto.fields.audio_header = ProtoField.bytes("iLnkP2P.audio_header", "Audio Header")
ilnk_proto.fields.hdr_streamid = ProtoField.uint16("iLnkP2P.hdr_streamid", "Header Stream ID")
ilnk_proto.fields.hdr_frameno = ProtoField.uint32("iLnkP2P.hdr_frameno", "Header Frame")
ilnk_proto.fields.hdr_len = ProtoField.uint16("iLnkP2P.hdr_len", "Header Len")
ilnk_proto.fields.hdr_ver = ProtoField.uint16("iLnkP2P.hdr_ver", "Header version")
ilnk_proto.fields.hdr_res = ProtoField.uint16("iLnkP2P.hdr_red", "Header resolution")
ilnk_proto.fields.encrypted = ProtoField.bool("iLnkP2P.encrypted", "Encrypted")
ilnk_proto.fields.cmd_type = ProtoField.string("iLnkP2P.cmd_type", "Cmd Pkt Type")
@@ -57,6 +62,12 @@ lut = {
[0xf171] = "RlyHelloAck2",
}
control_lut = {
[0x2010] = "ConnectUser",
[0x2011] = "ConnectUserAck",
[0x0811] = "ConnectUserAck",
}
-- Define a function to dissect the packets
function ilnk_proto.dissector(buffer, pinfo, tree)
local packet_length = buffer:len()
@@ -153,6 +164,12 @@ function ilnk_proto.dissector(buffer, pinfo, tree)
if payload_tvb:range(0, 4):uint() == 0x55aa15a8 then
payload_type = "audio"
subtree:add(ilnk_proto.fields.audio_header, buffer(8, 32))
subtree:add(ilnk_proto.fields.hdr_streamid, buffer(13, 1))
subtree:add(ilnk_proto.fields.hdr_frameno, buffer(20, 4), buffer(20, 4):le_uint())
subtree:add(ilnk_proto.fields.hdr_len, buffer(24, 4), buffer(24, 4):le_uint())
subtree:add(ilnk_proto.fields.hdr_ver, buffer(28, 1), buffer(28, 1):le_uint())
subtree:add(ilnk_proto.fields.hdr_res, buffer(29, 1), buffer(29, 1):le_uint())
subtree:add(ilnk_proto.fields.payload_len, buffer(24, 4), buffer(24, 4):le_uint())
subtree:add(ilnk_proto.fields.frame_no, buffer(20, 4), buffer(20, 4):le_uint())
if payload_tvb:range(4, 1):uint() == 0x06 then