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contrib: add a basic simtrace lua dissector for wireshark

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See Help->About Wireshark->Folders tab,the usual place this should go is
~/.local/lib/wireshark/plugins
Hot reload possible after editing using Analyze->Reload Lua Plugins

Change-Id: I360ab522dabc3a378969df36efd3b48fc4cade3c
This commit is contained in:
Eric Wild
2021-06-21 17:38:53 +02:00
parent f2e924c4aa
commit f0653533cc
1 changed files with 67 additions and 0 deletions
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67
contrib/simtrace.lua Normal file
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usb_simtrace_protocol = Proto("USB_simtrace", "USB simtrace protocol")
local control_commands = {
-- /* SIMTRACE_MSGC_GENERIC */
[0x0000] = "SIMTRACE_CMD_DO_ERROR",
[0x0001] = "SIMTRACE_CMD_BD_BOARD_INFO",
-- /* SIMTRACE_MSGC_CARDEM */
[0x0101] = "SIMTRACE_MSGT_DT_CEMU_TX_DATA",
[0x0102] = "SIMTRACE_MSGT_DT_CEMU_SET_ATR",
[0x0103] = "SIMTRACE_MSGT_BD_CEMU_STATS",
[0x0104] = "SIMTRACE_MSGT_BD_CEMU_STATUS",
[0x0105] = "SIMTRACE_MSGT_DT_CEMU_CARDINSERT",
[0x0106] = "SIMTRACE_MSGT_DO_CEMU_RX_DATA",
[0x0107] = "SIMTRACE_MSGT_DO_CEMU_PTS",
[0x0108] = "SIMTRACE_MSGT_BD_CEMU_CONFIG",
-- /* SIMTRACE_MSGC_MODEM */
[0x0201] = "SIMTRACE_MSGT_DT_MODEM_RESET",
[0x0202] = "SIMTRACE_MSGT_DT_MODEM_SIM_SELECT",
[0x0203] = "SIMTRACE_MSGT_BD_MODEM_STATUS",
-- /* SIMTRACE_MSGC_SNIFF */
[0x0300] = "SIMTRACE_MSGT_SNIFF_CHANGE",
[0x0301] = "SIMTRACE_MSGT_SNIFF_FIDI",
[0x0302] = "SIMTRACE_MSGT_SNIFF_ATR",
[0x0304] = "SIMTRACE_MSGT_SNIFF_TPDU",
[0x0303] = "SIMTRACE_MSGT_SNIFF_PPS"
}
local msgtype = ProtoField.uint16("usb_simtrace.msgtype", "Message Type", base.HEX_DEC, control_commands)
local seqnr = ProtoField.uint8("usb_simtrace.seqnr", "Sequence Number", base.HEX_DEC)
local slotnr = ProtoField.uint8("usb_simtrace.slotnr", "Slot Number", base.HEX_DEC)
local reserved = ProtoField.uint16("usb_simtrace.reserved", "reserved", base.HEX_DEC)
local payloadlen = ProtoField.uint16("usb_simtrace.length", "length", base.HEX_DEC)
local payload = ProtoField.bytes("usb_simtrace.payload", "Data")
usb_simtrace_protocol.fields = {
msgtype, seqnr, slotnr, reserved, payloadlen, payload
}
function usb_simtrace_protocol.dissector(buffer, pinfo, tree)
length = buffer:len()
if length == 0 then return end
pinfo.cols.protocol = usb_simtrace_protocol.name
local subtree = tree:add(usb_simtrace_protocol, buffer(), "USB simtrace Data")
local command = buffer(0,2):uint()
subtree:add(msgtype, command):set_generated()
subtree:add(seqnr, buffer(2,1))
subtree:add(slotnr, buffer(3,1))
subtree:add_le(payloadlen, buffer(6,2))
pinfo.cols.info = string.format("Cmd 0x%04X : %s", command, control_commands[command])
subtree:add(payload, buffer(8,length-8))
end
function usb_simtrace_protocol.init()
local usb_product_dissectors = DissectorTable.get("usb.product")
usb_product_dissectors:add(0x1d50616d, usb_simtrace_protocol)
-- DissectorTable.get("usb.bulk"):add(0xffff, usb_simtrace_protocol)
end