HM wireshark dissector protocol

Dissector/hm_dissector.lua

@@ -0,0 +1,83 @@
+
+
+function HM_dissector(buffer, pinfo, tree, 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
+  local subtree = tree:add(TC_TM_PROTOCOL, buffer(), "HEALTH_METRIC_DATA")
+  
+     --dissect submodule_id
+     local data1 = buffer(offset,1):le_uint()
+     subtree:add(f_sub_mod_id , data1)
+     offset = offset + 1
+     
+     --dissect queue_id
+     local data2 = buffer(offset,1):le_uint()
+     subtree:add(f_Queue_id, data2)
+     offset = offset + 1
+     
+     --dissect f_priority
+     local data3 = buffer(offset,1):le_uint()
+     subtree:add(f_priority, data3)
+      offset = offset + 1     
+     --dissect option to select_single or multiple queue
+     local data4 = buffer(offset,1):le_uint()
+     subtree: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, tree, 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.uint8("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 info_display
+  local subtree = tree:add(TC_TM_PROTOCOL, buffer(), "HEALTH_METRIC_DATA")
+  
+     --dissect submodule_id
+     local data1 = buffer(offset,1):le_uint()
+     subtree:add(f_sub_mod_id , data1)
+     offset = offset + 1
+     
+     --dissect queue_id
+     local data2 = buffer(offset,1):le_uint()
+     subtree:add(f_Queue_id, data2)
+     offset = offset + 1
+     
+     --dissect f_num_of_instance
+     local data3 = buffer(offset,1):le_uint()
+     subtree:add(f_num_of_instance, data3)
+      offset = offset + 1     
+      
+     --dissect Health_Data
+     len =len - 3
+     for i=0, len-1 do
+       local data4 = buffer(offset,1):le_uint()
+       subtree:add(f_Health_Data, data4)
+       offset = offset + 1
+     end
+
+end
+
+
+
+
+

Dissector/tc_tm_protocols.lua

@@ -33,6 +33,8 @@ TC_TM_PROTOCOL.fields = {
 }
 
 ------------------------------------------------------------------------------------------------------------------------------------
+
+
 function TC_dissector(buffer, pinfo, tree)
 --Set the protocol coloumn name in wireshark
    local subtree = tree:add(TC_TM_PROTOCOL, buffer(), "TELECOMMAND")
@@ -181,8 +183,9 @@ function TC_dissector(buffer, pinfo, tree)
     -- Dissect TC_Id (2 bytes)
    -- Dissect TC_Id (2 bytes)
 	local info_display
+ 
+   local tc_id = buffer(offset, 1):le_uint() -- Read 1 byte for tc_id
    if buffer:len() >= offset + 2 then  -- Ensure enough data is available to read 2 bytes
-    local tc_id = buffer(offset, 1):le_uint()  -- Read 1 byte for tc_id
 
     -- Check if the 7th bit (0x80) is set in tc_id
     if bit.band(tc_id, 0x80) == 0x80 then
@@ -206,8 +209,7 @@ function TC_dissector(buffer, pinfo, tree)
 
     -- Add tc_id to the subtree (display in dissection tree)
     subtree:add(f_tc_id, tc_id)
-	 info_display= {buffer(11, 2):le_uint(),buffer(7, 4):le_uint() ,tc_id} --- for info display in wireshark
-
+    
     -- Move the offset forward by 1 (since we initially read 1 byte)
     offset = offset + 1
 end
@@ -222,17 +224,26 @@ end
     end
     
     -- Dissect TC_Data (variable length)
-	local subtree2 = subtree:add(TC_TM_PROTOCOL, buffer(), "TC_DATA")
+    --local subtree2 = subtree:add(TC_TM_PROTOCOL, buffer(), TC_DATA())
+    local data
     if buffer:len() >= offset + tc_len then
-    if  tc_len == 0 then
-        subtree2:add("TC DATA : NIL")
-    else
-	  for i=1,tc_len do
-        	subtree2:add(f_tc_data, buffer(offset, 1))
-        	offset = offset + 1
-    end   
-		end
-	end
+          if  tc_len == 0 then
+              subtree:add("TC DATA : NIL")
+          else
+              if tc_id == 621 then
+              
+                 require("HM_dissector")
+
+                data = HM_dissector(buffer, pinfo, tree, TC_TM_PROTOCOL, offset)
+                offset = offset + tc_len   
+              else
+	              for i=0,tc_len - 1 do
+        	      subtree:add(f_tc_data, buffer(offset, 1))
+      	        offset = offset + 1
+             end
+          end   
+		  end
+    end
     
 
     -- Check if we can dissect Ext_Header_Len
@@ -267,8 +278,31 @@ end
     if buffer:len() >= offset + 1 then
         subtree:add(f_eof1, buffer(offset, 1))
     end
+    local string
+ 
+   
+      if data == 9 then
+        string = "EPS"
+      elseif data == 22 then
+        string = "ADCS"
+      elseif data == 14 then
+        string = "COMMS_SBAND_CNTRL"
+      elseif data == 15 then
+        string = "COMMS_UHF_CNTRL"
+      elseif data == 42 then
+        string = "SENSOR"
+      elseif data == 27 then
+        string = "OBC"
+      else
+        string = "All module"
+      end
+              
+    
+    info_display= {buffer(11, 2):le_uint(),buffer(7, 4):le_uint() ,tc_id, string} --- for info display in wireshark
+
+    
+    pinfo.cols.info ="seq_no = " ..info_display[1] .." TS = " ..info_display[2].." TC_ID = "..info_display[3].." Module = " ..info_display[4] -- for info display in wireshark
 
-	pinfo.cols.info ="seq_no=" ..info_display[1] .." TS=" ..info_display[2].." TC_ID="..info_display[3]  -- for info display in wireshark
 end
 
 -----------------------------------------------------------------------------------------------------------------------------------
@@ -357,6 +391,8 @@ function TM_dissector(buffer, pinfo, tree)  -- OBC to GS
 
     -- My logic for TM Id
     local info_display    -- for display in wireshark
+    local tm_id
+    
     magic = buffer(add, 1):uint()
     if bit.band(magic, 0x80) == 0 then
         subtree:add(f_tm_id, buffer(add, 1):le_uint())  -- TM Id in HEX
@@ -375,20 +411,37 @@ function TM_dissector(buffer, pinfo, tree)  -- OBC to GS
 	add=add+2
     end
 
+    tm_id = magic
+    
     -- Co Id in HEX
     subtree:add(f_co_id, buffer(add, 2):le_uint())
     add=add+2
+    
     -- TM Len in HEX
+    local tm_len
+    
     magic = buffer(add, 2):le_uint()
+    tm_len = magic
     subtree:add(f_tm_len, buffer(add, 2):le_uint())
     add=add+2
 
     --  logic for TM Data
 	local subtree2 = subtree:add(TC_TM_PROTOCOL, buffer(), "TM_DATA")
-    for i=0,magic-1 do
-	subtree2:add(f_tm_data, buffer(add, 1):le_uint())
-	add=add+1
-    end
+ 
+   -- Dissect TM_Data (variable length)
+      if tm_id == 621  then
+      
+        require("HM_dissector")
+        HM_TM_dissector(buffer, pinfo, tree, TC_TM_PROTOCOL, add, tm_len)
+        add = add + tm_len
+      
+      else
+        for i=0,magic-1 do
+	        subtree2:add(f_tm_data, buffer(add, 1):le_uint())
+	        add=add+1
+        end
+      end
+    
       
     -- Ext Header Len in HEX
     magic = buffer(6, 1):le_uint()  -- to check tm control
@@ -454,8 +507,6 @@ function TC_TM_PROTOCOL.dissector(buffer, pinfo, tree)
 end
 ------------------------------------------------------------------------------------------------------------------------------------------------
 
----------------------------------------------------------------------------------------------------------------------------
-
 -- Add a preference for the port number
 TC_TM_PROTOCOL.prefs.port = Pref.uint("UDP Port", 6767, "UDP port for TC_TM protocol")