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