exo_sw_dissectors/Dissector/hm_dissector.lua

function HM_TC_dissector(buffer, pinfo, subtree, TC_TM_PROTOCOL, offset)

  local f_sub_mod_id = ProtoField.uint8("TC_TM_PROTOCOL.sub_mod_id", "SUB MODULE ID", base.DEC)
local f_Queue_id = ProtoField.uint8("TC_TM_PROTOCOL.Queue_id", "QUEUE ID", base.DEC)
local f_priority = ProtoField.uint8("TC_TM_PROTOCOL.priority", "PRIORITY", base.DEC)
local f_opt_sel_sin_mul_que = ProtoField.uint8("TC_TM_PROTOCOL.opt_sel_sin_mul_que", "Option To Select Single Or Multiple Queue", base.DEC)

-- Add the fields to the protocol
TC_TM_PROTOCOL.fields = { f_sub_mod_id, f_Queue_id, f_priority, f_opt_sel_sin_mul_que }

    --local info_display
    subtree1 = subtree:add(TC_TM_PROTOCOL, buffer(), "HEALTH_METRIC_DATA")
  
     --dissect submodule_id
     local data1 = buffer(offset,1):le_uint()
     subtree1:add(f_sub_mod_id , data1)
     offset = offset + 1
     
     --dissect queue_id
     local data2 = buffer(offset,1):le_uint()
     subtree1:add(f_Queue_id, data2)
     offset = offset + 1
     
     --dissect f_priority
     local data3 = buffer(offset,1):le_uint()
     subtree1:add(f_priority, data3)
      offset = offset + 1     
     --dissect option to select_single or multiple queue
     local data4 = buffer(offset,1):le_uint()
     subtree1:add(f_opt_sel_sin_mul_que, data4)
     
     --info_display= {data1} --- for info display in wireshark
     --pinfo.cols.info ="sub_mod_id" ..info_display[1]
  
    return data1     
end 


function HM_TM_dissector(buffer, pinfo, subtree, TC_TM_PROTOCOL, offset, len)

local f_sub_mod_id = ProtoField.uint8("TC_TM_PROTOCOL.sub_mod_id", "SUB MODULE ID", base.DEC)
local f_Queue_id = ProtoField.uint8("TC_TM_PROTOCOL.Queue_id", "QUEUE ID", base.DEC)
local f_num_of_instance = ProtoField.uint16("TC_TM_PROTOCOL.num_of_instance", "Number of Instance", base.DEC)
local f_Health_Data = ProtoField.uint8("TC_TM_PROTOCOL.Health_Data", "Health Data", base.DEC)

-- Add the fields to the protocol
TC_TM_PROTOCOL.fields = { f_sub_mod_id, f_Queue_id, f_num_of_instance, f_Health_Data }

local len1 = 0
   --local info_display
   local subtree1 = subtree:add(TC_TM_PROTOCOL, buffer(), "HEALTH_METRIC_DATA")
  
     --dissect submodule_id
     local data1 = buffer(offset,1):le_uint()
     subtree1:add(f_sub_mod_id , data1)
     offset = offset + 1
     
     --dissect queue_id
     local data2 = buffer(offset,1):le_uint()
     subtree1:add(f_Queue_id, data2)
     offset = offset + 1
     
     --dissect f_num_of_instance
     local data3 = buffer(offset,2):le_uint()
     subtree1:add(f_num_of_instance, data3)
      offset = offset + 2  
      
     --dissect Health_Data
     len =len - 3
     if data1 == 5 then
       require("obc_dissector")
       
        --for i=0, data3-1 do
        
         obc_dissector(buffer, pinfo, subtree1, TC_TM_PROTOCOL, offset, data3)
     
     else
       
         for i=0, len-1 do
         local data4 = buffer(offset,1):le_uint()
         subtree1:add(f_Health_Data, data4)
         offset = offset + 1
         end
     end
       
     
     local array = {data1, data2, data3}
     
     return array

end