417 lines
7.9 KiB
NASM
417 lines
7.9 KiB
NASM
;
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; ARP Status Monitor
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;
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; Compile with FASM for Menuet
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;
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; This program displays the ARP table, and it's settings
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use32
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org 0x0
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db 'MENUET00' ; 8 byte id
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dd 38 ; required os
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dd START ; program start
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dd I_END ; program image size
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dd 0x100000 ; required amount of memory
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dd 0x00000000 ; reserved=no extended header
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include 'lang.inc'
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include '..\..\..\macros.inc'
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purge mov ; decrease kpack'ed size
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START: ; start of execution
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call draw_window ; at first, draw the window
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still:
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mov eax,23 ; wait here for event
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mov ebx,200 ; Time out after 2s
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mcall
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cmp eax,1 ; redraw request ?
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jz red
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cmp eax,2 ; key in buffer ?
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jz key
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cmp eax,3 ; button in buffer ?
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jz button
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; read the stack status data, and write it to the screen buffer
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mov eax, 53
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mov ebx, 255
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mov ecx, 200
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mcall
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push eax
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mov ebx, text + 24
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call printhex
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mov eax, 53
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mov ebx, 255
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mov ecx, 201
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mcall
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mov ebx, text + 64
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call printhex
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; Fill the table with blanks
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mov edi, text + 160
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doBlank:
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mov esi, blank
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mov ecx, 40
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rep movsb
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cmp edi, text + 560
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jne doBlank
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pop ecx ; The number of entries
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mov ebx, text+ 160 +1 ; the position for the first IP address line
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xor edx, edx ; edx is index into the ARP table
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cmp ecx, 10
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jle show_entries
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mov ecx, 10
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; The following code is not very efficient; Sorry about that.
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; ARPSTAT is a debugging tool, so I didn't want to put much effort in
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show_entries:
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; Ecx now holds the number of entries to populate.
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; Ebx holds the place to put the data
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; edx is a counter
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cmp ecx, 0
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je red
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push ecx
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push edx
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push ebx
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; select the arp table entry (in edx)
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mov eax, 53
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mov ebx, 255
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mov ecx, 202
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mcall
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; Read the IP address
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mov eax, 53
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mov ebx, 255
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mov ecx, 203
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mcall
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; IP in eax. Get the address to put it back
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pop ebx
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push ebx
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call writeDecimal ; Extract 1 byte from eax, store it in string
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add ebx, 4
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shr eax, 8
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call writeDecimal ; Extract 1 byte from eax, store it in string
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add ebx, 4
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shr eax, 8
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call writeDecimal ; Extract 1 byte from eax, store it in string
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add ebx, 4
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shr eax, 8
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call writeDecimal ; Extract 1 byte from eax, store it in string
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add ebx, 4
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; Now display the 6 byte MAC
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push ebx
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mov eax, 53
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mov ebx, 255
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mov ecx, 204
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mcall
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pop ebx
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mov ecx, eax
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shr eax, 4
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 12
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 8
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 20
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 16
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 28
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 24
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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push ebx
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mov eax, 53
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mov ebx, 255
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mov ecx, 205
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mcall
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pop ebx
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mov ecx, eax
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shr eax, 4
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 12
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 8
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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; Now display the stat field
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inc ebx
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inc ebx
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push ebx
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mov eax, 53
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mov ebx, 255
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mov ecx, 206
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mcall
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pop ebx
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mov ecx, eax
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shr eax, 4
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 12
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 8
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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; Now display the TTL field (this is intel word format)
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inc ebx
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inc ebx
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push ebx
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mov eax, 53
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mov ebx, 255
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mov ecx, 207
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mcall
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pop ebx
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mov ecx, eax
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shr eax, 12
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 8
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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shr eax, 4
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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inc ebx
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mov eax, ecx
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and eax, 0x0f
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mov al, [eax + hextable]
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mov [ebx], al
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pop ebx
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add ebx, 40
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pop edx
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inc edx
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pop ecx
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dec ecx
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jmp show_entries
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red: ; redraw
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call draw_window
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jmp still
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key: ; Keys are not valid at this part of the
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mov eax,2 ; loop. Just read it and ignore
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mcall
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jmp still
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button: ; button
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mov eax,17 ; get id
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mcall
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cmp ah,1 ; button id=1 ?
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jnz still
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mov eax,0xffffffff ; close this program
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mcall
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writeDecimal:
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pusha
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and eax, 0xff
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mov dl, 100
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div dl
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movzx ecx, ah
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add al, '0'
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mov [ebx], al
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inc ebx
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mov eax, ecx
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mov dl, 10
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div dl
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add ax, '00'
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mov [ebx], ax
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popa
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ret
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; *********************************************
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; ******* WINDOW DEFINITIONS AND DRAW ********
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; *********************************************
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draw_window:
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mov eax,12 ; function 12:tell os about windowdraw
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mov ebx,1 ; 1, start of draw
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mcall
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; DRAW WINDOW
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mov eax,0 ; function 0 : define and draw window
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mov ebx,100*65536+280 ; [x start] *65536 + [x size]
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mov ecx,100*65536+270 ; [y start] *65536 + [y size]
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mov edx,0x14224466 ; color of work area RRGGBB
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mov edi,title ; WINDOW LABEL
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mcall
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; Re-draw the screen text
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cld
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mov eax,4
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mov ebx,25*65536+35 ; draw info text with function 4
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mov ecx,0xffffff
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mov edx,text
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mov esi,40
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newline:
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mcall
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add ebx,16
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add edx,esi
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cmp [edx],byte 'x'
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jnz newline
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mov eax,12 ; function 12:tell os about windowdraw
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mov ebx,2 ; 2, end of draw
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mcall
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ret
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; Taken from PS.ASM
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printhex:
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; number in eax
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; print to ebx
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; xlat from hextable
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pusha
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mov esi, ebx
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add esi, 8
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mov ebx, hextable
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mov ecx, 8
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phex_loop:
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mov edx, eax
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and eax, 15
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xlatb
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mov [esi], al
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mov eax, edx
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shr eax, 4
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dec esi
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loop phex_loop
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popa
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ret
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; DATA AREA
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text:
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db ' Number of ARP entries: xxxxxxxx '
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db ' Maximum # of entries : xxxxxxxx '
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db ' '
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db ' IP Address MAC Stat TTL '
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db ' xxx.xxx.xxx.xxx xxxxxxxxxxxx xxxx xxxx '
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db ' xxx.xxx.xxx.xxx xxxxxxxxxxxx xxxx xxxx '
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db ' xxx.xxx.xxx.xxx xxxxxxxxxxxx xxxx xxxx '
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db ' xxx.xxx.xxx.xxx xxxxxxxxxxxx xxxx xxxx '
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db ' xxx.xxx.xxx.xxx xxxxxxxxxxxx xxxx xxxx '
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db ' xxx.xxx.xxx.xxx xxxxxxxxxxxx xxxx xxxx '
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db ' xxx.xxx.xxx.xxx xxxxxxxxxxxx xxxx xxxx '
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db ' xxx.xxx.xxx.xxx xxxxxxxxxxxx xxxx xxxx '
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db ' xxx.xxx.xxx.xxx xxxxxxxxxxxx xxxx xxxx '
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db ' xxx.xxx.xxx.xxx xxxxxxxxxxxx xxxx xxxx '
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db 'x' ; <- END MARKER, DONT DELETE
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blank:
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db ' xxx.xxx.xxx.xxx xxxxxxxxxxxx xxxx xxxx '
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title db 'ARP Table ( First 10 Entries )',0
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hextable db '0123456789ABCDEF'
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I_END:
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