382 lines
9.8 KiB
NASM
382 lines
9.8 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2010-2014. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; ping.asm - ICMP echo client for KolibriOS ;;
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;; ;;
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;; Written by hidnplayr@kolibrios.org ;;
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;; ;;
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;; GNU GENERAL PUBLIC LICENSE ;;
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;; Version 2, June 1991 ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; TODO: more precise timer, ttl, user selectable size/number of packets
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format binary as ""
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BUFFERSIZE = 1500
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IDENTIFIER = 0x1337
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use32
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org 0x0
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db 'MENUET01' ; signature
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dd 1 ; header version
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dd start ; entry point
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dd I_END ; initialized size
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dd mem ; required memory
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dd mem ; stack pointer
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dd s ; parameters
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dd 0 ; path
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; useful includes
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include '../../macros.inc'
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purge mov,add,sub
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include '../../proc32.inc'
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include '../../dll.inc'
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include '../../network.inc'
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include 'icmp.inc'
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start:
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; load libraries
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stdcall dll.Load, @IMPORT
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test eax, eax
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jnz exit
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; initialize console
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push 1
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call [con_start]
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push title
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push 25
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push 80
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push 25
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push 80
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call [con_init]
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; main loop
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cmp byte[s], 0
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jne parse_param
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push str_welcome
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call [con_write_asciiz]
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main:
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; write prompt
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push str_prompt
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call [con_write_asciiz]
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; read string
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mov esi, s
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push 256
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push esi
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call [con_gets]
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; check for exit
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test eax, eax
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jz exit
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cmp byte [esi], 10
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jz exit
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; delete terminating '\n'
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push esi
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@@:
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lodsb
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test al, al
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jnz @b
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mov byte [esi-2], al
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pop esi
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; reset stats
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mov [stats.tx], 0
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mov [stats.rx], 0
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mov [stats.time], 0
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parse_param:
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mov [count], 4 ; default number of pings to send
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; Check if any additional parameters were given
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mov esi, s
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mov ecx, 1024
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.addrloop:
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lodsb
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test al, al
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jz .resolve
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cmp al, ' '
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jne .addrloop
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mov byte[esi-1], 0
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jmp .param
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.param_loop:
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lodsb
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test al, al
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jz .resolve
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cmp al, ' '
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jne .invalid
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.param:
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lodsb
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cmp al, '-'
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jne .invalid
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lodsb
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cmp al, 't'
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jne @f
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mov [count], -1 ; infinite
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jmp .param_loop
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@@:
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; implement more parameters here
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.invalid:
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push str13
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call [con_write_asciiz]
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jmp main
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.resolve:
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; resolve name
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push esp ; reserve stack place
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push esp ; fourth parameter
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push 0 ; third parameter
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push 0 ; second parameter
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push s ; first parameter
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call [getaddrinfo]
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pop esi
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; test for error
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test eax, eax
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jnz fail
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; convert IP address to decimal notation
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mov eax, [esi+addrinfo.ai_addr]
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mov eax, [eax+sockaddr_in.sin_addr]
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mov [sockaddr1.ip], eax
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push eax
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call [inet_ntoa]
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; write result
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mov [ip_ptr], eax
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push eax
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; free allocated memory
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push esi
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call [freeaddrinfo]
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push str4
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call [con_write_asciiz]
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mcall socket, AF_INET4, SOCK_RAW, IPPROTO_ICMP
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cmp eax, -1
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jz fail2
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mov [socketnum], eax
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mcall connect, [socketnum], sockaddr1, 18
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mcall 40, 1 shl 7 ; + 7
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; call [con_cls]
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push str3
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call [con_write_asciiz]
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push [ip_ptr]
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call [con_write_asciiz]
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push (icmp_packet.length - ICMP_Packet.Data)
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push str3b
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call [con_printf]
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mainloop:
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call [con_get_flags]
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test eax, 0x200 ; con window closed?
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jnz exit_now
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inc [stats.tx]
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mcall 26, 9
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mov [time_reference], eax
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mcall send, [socketnum], icmp_packet, icmp_packet.length, 0
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mcall 23, 300 ; 3 seconds time-out
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mcall 26, 9
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sub eax, [time_reference]
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xor edx, edx
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mov cx, 10
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mul cx
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mov [time_reference], eax
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mcall recv, [socketnum], buffer_ptr, BUFFERSIZE, MSG_DONTWAIT
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cmp eax, -1
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je .no_response
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sub eax, ICMP_Packet.Data
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jb .invalid
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mov [recvd], eax
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cmp word[buffer_ptr + ICMP_Packet.Identifier], IDENTIFIER
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jne .invalid
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; OK, we have a response, update stats and let the user know
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inc [stats.rx]
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mov eax, [time_reference]
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add [stats.time], eax
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push str11 ; TODO: print IP address of packet sender
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call [con_write_asciiz]
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; validate the packet
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lea esi, [buffer_ptr + ICMP_Packet.Data]
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mov ecx, [recvd]
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mov edi, icmp_packet.data
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repe cmpsb
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jne .miscomp
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; All OK, print to the user!
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push [time_reference]
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movzx eax, word[buffer_ptr + ICMP_Packet.SequenceNumber]
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push eax
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push [recvd]
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push str7
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call [con_printf]
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jmp .continue
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; Error in packet, print it to user
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.miscomp:
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sub edi, icmp_packet.data
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push edi
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push str9
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call [con_printf]
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jmp .continue
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; Invalid reply
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.invalid:
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push str10
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call [con_write_asciiz]
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jmp .continue
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; Timeout!
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.no_response:
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push str8
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call [con_write_asciiz]
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; Send more ICMP packets ?
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.continue:
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inc [icmp_packet.seq]
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cmp [count], -1
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je .forever
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dec [count]
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jz done
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.forever:
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mcall 5, 100 ; wait a second
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jmp mainloop
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; Done..
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done:
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cmp [stats.rx], 0
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jne @f
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xor eax, eax
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jmp .zero
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@@:
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xor edx, edx
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mov eax, [stats.time]
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div [stats.rx]
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.zero:
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push eax
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push [stats.rx]
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push [stats.tx]
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push str12
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call [con_printf]
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jmp main
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; DNS error
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fail:
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push str5
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call [con_write_asciiz]
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jmp main
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; Socket error
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fail2:
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push str6
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call [con_write_asciiz]
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jmp main
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; Finally.. exit!
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exit:
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push 1
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call [con_exit]
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exit_now:
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mcall -1
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; data
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title db 'ICMP echo (ping) client',0
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str_welcome db 'Please enter the hostname or IP-address of the host you want to ping,',10
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db 'or just press enter to exit.',10,0
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str_prompt db 10,'> ',0
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str3 db 'Pinging to ',0
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str3b db ' with %u data bytes',10,0
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str4 db 10,0
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str5 db 'Name resolution failed.',10,0
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str6 db 'Could not open socket',10,0
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str13 db 'Invalid parameter(s)',10,0
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str11 db 'Answer: ',0
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str7 db 'bytes=%u seq=%u time=%u ms',10,0
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str8 db 'timeout!',10,0
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str9 db 'miscompare at offset %u',10,0
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str10 db 'reply invalid',10,0
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str12 db 10,'Ping stats:',10,'%u packets sent, %u packets received',10,'average response time=%u ms',10,0
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sockaddr1:
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dw AF_INET4
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.port dw 0
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.ip dd 0
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rb 10
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time_reference dd ?
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ip_ptr dd ?
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count dd ?
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recvd dd ? ; received number of bytes in last packet
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stats:
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.tx dd ?
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.rx dd ?
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.time dd ?
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; import
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align 4
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@IMPORT:
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library network, 'network.obj', console, 'console.obj'
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import network, \
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getaddrinfo, 'getaddrinfo', \
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freeaddrinfo, 'freeaddrinfo', \
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inet_ntoa, 'inet_ntoa'
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import console, \
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con_start, 'START', \
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con_init, 'con_init', \
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con_write_asciiz, 'con_write_asciiz', \
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con_printf, 'con_printf', \
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con_exit, 'con_exit', \
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con_gets, 'con_gets',\
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con_cls, 'con_cls',\
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con_getch2, 'con_getch2',\
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con_set_cursor_pos, 'con_set_cursor_pos',\
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con_get_flags, 'con_get_flags'
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socketnum dd ?
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icmp_packet: db 8 ; type
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db 0 ; code
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dw 0 ;
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.id dw IDENTIFIER ; identifier
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.seq dw 0x0000 ; sequence number
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.data db 'abcdefghijklmnopqrstuvwxyz012345'
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.length = $ - icmp_packet
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I_END:
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buffer_ptr rb BUFFERSIZE
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s rb 1024
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rb 4096 ; stack
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mem:
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