kolibrios/programs/network/ppp/trunk/chat.inc
heavyiron 630234432f Changed structure of svn repository
git-svn-id: svn://kolibrios.org@109 a494cfbc-eb01-0410-851d-a64ba20cac60
2006-07-28 13:39:16 +00:00

189 lines
3.9 KiB
PHP

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; CHAT.INC ;;
;; ;;
;; Modem Chat Initiator for PPP Dialer ;;
;; ;;
;; Version 3 2nd May 2003 ;;
;; ;;
;; Copyright 2002 Shrirang Bhagwat, b_shrirang@hotmail.com ;;
;; ;;
;; See file COPYING for details ;;
;; ;;
;; 2/5/03 - Shrirang - Added Abort Strings For sendwait ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Request And Response Chat Strings
; Following Data Structure is used for Request Response Chatting
; with the modem, for each request there is an expected response
; chatreq <-> chatres, 0 (NULL) is delimeter for 1 string
; '`' is delimiter for the section, modify according to your
; modem dialing scheme; in future MenuetOS might provide a graphical
; client to generate this kind of data structure and the PAP packet
; for username and password!
; Aborts strings are used to get outta sendwait early...
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; REQUESTS
chatreq db 'ATH',13,0 ; 0 (NULL) is required by sendwait
db 'ATZ',13,0
db 'ATM1',13,0
db 'ATX1',13,0 ; My Modem doesn't connect without this
; db 'ATDT;',13,0
db 'ATDT phonenumber',13,0
db '`' ; <- End Marker
; RESPONSES
chatres db 'OK',0
db 'OK',0
db 'OK',0
db 'OK',0
; db 'OK',0
db 'CONNECT',0
db '`' ; <- End Marker
; ABORTS
aborts db 'ERROR',0
db 'NO CARRIER',0
db 'NO DIALTONE',0
db 'BUSY',0
db 'LINE IN USE',0
db 'NO ANSWER',0
db '`' ; <- End Marker
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
; modem_chat - chats with the modem to initiate a connection
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
modem_chat:
push edi
push esi
push edx
mov edi, chatreq ; init everytime, safe, stateless
mov esi, chatres
chat_now:
cmp byte [esi], '`' ; are we done?
je chatover
mov edx, 6000 ; strings like "atdt;" take long on my modem
call sendwait
and eax, eax
jz timeoutoccured
updatereq:
inc edi
cmp byte [edi], '`'
je updateres
cmp byte [edi], 0
jne updatereq
inc edi
updateres:
inc esi
cmp byte [esi], '`'
je chatover
cmp byte [esi], 0
jne updateres
inc esi
jmp chat_now
chatover:
xor eax, eax ; SUCCESS!
inc eax
pop edx
pop esi
pop edi
ret
timeoutoccured:
xor eax, eax ; FAIL!
pop edx
pop esi
pop edi
ret
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
; scanaborts - scans the response from modem for abort srings
; ESI - Response from modem
; EDI - Pointer to Abort Table
; ECX - Response Length
; Returns 1 if abort detected, 0 otherwise
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
scanaborts:
push esi
push edi
push ecx
checkit:
push esi
repe cmpsb ; any abort matches?
je abortdetected
pop esi
updatetbl:
inc edi
cmp byte [edi], '`'
je noabortfound
cmp byte [edi], 0
jne updatetbl
inc edi
jmp checkit
abortdetected:
pop esi
pop ecx
pop edi
pop esi
xor eax, eax ; SUCCESS!
inc eax
ret
noabortfound :
pop ecx
pop edi
pop esi
xor eax, eax ; FAILED!
ret