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Rev 1206 Rev 1249
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;;          GNU GENERAL PUBLIC LICENSE                             ;;
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;;          GNU GENERAL PUBLIC LICENSE                             ;;
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;;             Version 2, June 1991                                ;;
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;;             Version 2, June 1991                                ;;
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;;                                                                 ;;
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;;                                                                 ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 1206 $
 20 
$Revision: 1249 $
21 
 
 21 
 
22 
uglobal
 22 
uglobal
23 
	last_1sTick	db ?
 23 
	last_1sTick	db ?
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 31 
 
32 
ETHER		equ 1337
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ETHER		equ 1337
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ETHER_ARP	equ 0x0608
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ETHER_ARP	equ 0x0608
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 34 
 
35 
;AF_UNSPEC       equ 0
 35 
;AF_UNSPEC       equ 0
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;AF_UNIX         equ 1
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AF_UNIX 	equ 1
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AF_INET4	equ 2
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AF_INET4	equ 2
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;AF_AX25         equ 3
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;AF_AX25         equ 3
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;AF_IPX          equ 4
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;AF_IPX          equ 4
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include "queue.inc"
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include "queue.inc"
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include "ARP.inc"
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include "ARP.inc"
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include "IPv4.inc"
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include "IPv4.inc"
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include "ethernet.inc"
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include "ethernet.inc"
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include "socket.inc"
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include "socket.inc"
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;include "tcp.inc"
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include "tcp.inc"
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include "udp.inc"
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include "udp.inc"
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include "icmp.inc"
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include "icmp.inc"
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;-----------------------------------------------
 71 
;-----------------------------------------------
Line 84... Line 84...
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 84 
 
85 
	call	ETH_init
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	call	ETH_init
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	call	IPv4_init
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	call	IPv4_init
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	call	ARP_init
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	call	ARP_init
- 
 
 88 
	call	UDP_init
88 
	call	UDP_init
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	call	TCP_init
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	call	ICMP_init
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	call	ICMP_init
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	call	socket_init
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	call	socket_init
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stack_handler:
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stack_handler:
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    cmp     [ETH_RUNNING], 0
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    cmp     [ETH_RUNNING], 0
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    je	    .exit
 - 
 
117 
 
 - 
 
118 
    call    ETH_handler 		; handle all queued ethernet packets
 - 
 
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    call    ETH_send_queued
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    je	    .exit
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 118 
 
121 
    ; Test for 10ms tick, call tcp timer
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    ; Test for 10ms tick
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    mov     eax, [timer_ticks]
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    mov     eax, [timer_ticks]
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    cmp     eax, [last_1hsTick]
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    cmp     eax, [last_1hsTick]
- 
 
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    je	    .exit
- 
 
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- 
 
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    mov     [last_1hsTick], eax
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    je	    .exit
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 126 
    call    ETH_handler 		; handle all queued ethernet packets
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    mov     [last_1hsTick], eax
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    call    ETH_send_queued
127 
;    call    tcp_tx_handler
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    call    TCP_send_queued
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 129 
 
129 
  .sec_tick:
 130 
  .sec_tick:
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    ; Test for 1 second event, call 1s timer functions
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    ; Test for 1 second event
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    mov     al, 0x0   ;second
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    mov     al, 0x0   ;second
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    out     0x70, al
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    out     0x70, al
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    in	    al, 0x71
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    in	    al, 0x71
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    cmp     al, [last_1sTick]
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    cmp     al, [last_1sTick]
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    je	    .exit
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    je	    .exit
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    mov     [last_1sTick], al
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    call    ARP_decrease_entry_ttls
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    call    IPv4_decrease_fragment_ttls
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;    call    tcp_tcb_handler
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 - 
 
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  .exit:
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    ret
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 - 
 
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 - 
 
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 - 
 
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Checksum [by Johnny_B]
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;;  IN:
 - 
 
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;;    buf_ptr=POINTER to buffer
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;;    buf_size=SIZE of buffer
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;;  OUT:
 - 
 
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;;    AX=16-bit checksum
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;;              Saves all used registers
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 - 
 
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    mov     [last_1sTick], al
- 
 
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- 
 
 141 
    call    ARP_decrease_entry_ttls
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    call    IPv4_decrease_fragment_ttls
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 143 
    call    TCP_decrease_socket_ttls
- 
 
 144 
 
- 
 
 145 
  .exit:
- 
 
 146 
    ret
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- 
 
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- 
 
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- 
 
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- 
 
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- 
 
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;-----------------------------------------------------------------
- 
 
 153 
;
- 
 
 154 
; checksum_1
- 
 
 155 
;
- 
 
 156 
;  This is the first of two functions needed to calculate the TCP checksum.
- 
 
 157 
;
158 
proc checksum_jb stdcall uses ebx esi ecx,\
 158 
;  IN:  edx = start offeset for semi-checksum
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     buf_ptr:DWORD, buf_size:DWORD
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;       esi = pointer to data
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 160 
;       ecx = data size
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    xor     eax, eax
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;  OUT: edx = semi-checksum
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    xor     ebx, ebx  ;accumulator
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;
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;-----------------------------------------------------------------
- 
 
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- 
 
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align 4
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 166 
checksum_1:
- 
 
 167 
 
- 
 
 168 
	xor	eax, eax
- 
 
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	shr	ecx, 1
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 170 
	pushf
- 
 
 171 
.loop:
- 
 
 172 
	lodsw
- 
 
 173 
	xchg	al, ah
- 
 
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	add	edx, eax
- 
 
 175 
	loop	.loop
- 
 
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- 
 
 177 
	popf
- 
 
 178 
	jnc	.end
- 
 
 179 
 
- 
 
 180 
	lodsb
- 
 
 181 
	shl	ax, 8
- 
 
 182 
	add	edx, eax
- 
 
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- 
 
 184 
.end:
- 
 
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- 
 
 186 
	ret
- 
 
 187 
 
- 
 
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- 
 
 189 
 
- 
 
 190 
;-----------------------------------------------------------------
- 
 
 191 
;
- 
 
 192 
; checksum_2
- 
 
 193 
;
163 
    mov     esi, dword[buf_ptr]
 194 
;  This function calculates the final ip/tcp/udp checksum for you
164 
    mov     ecx, dword[buf_size]
 195 
;
165 
    shr     ecx, 1  ; ecx=ecx/2
 196 
;  IN:  edx = semi-checksum
- 
 
 197 
;  OUT: dx = checksum (in INET byte order)
- 
 
 198 
;
- 
 
 199 
;-----------------------------------------------------------------
- 
 
 200 
 
166 
    jnc     @f	    ; if CF==0 then size is even number
 201 
align 4
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 202 
checksum_2:
- 
 
 203 
 
- 
 
 204 
	mov	ecx, edx
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167 
    mov     bh, byte[esi + ecx*2]
 205 
	shr	ecx, 16
168 
  @@:
 - 
 
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169 
    cld
 206 
	and	edx, 0xffff
170 
 
 207 
	add	edx, ecx
Line 248... Line 285...
248 
	mov	esi, [esi + ETH_DRV_LIST]
 285 
	mov	esi, [esi + ETH_DRV_LIST]
249 
	call	[esi + ETH_DEVICE.unload]
 286 
	call	[esi + ETH_DEVICE.unload]
250 
	jmp	.return
 287 
	jmp	.return
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251 
 
 288 
 
- 
 
 289 
  @@:
- 
 
 290 
	dec	bl			; 4 = Get driver pointer
- 
 
 291 
	jnz	@f
- 
 
 292 
 
- 
 
 293 
	; ..;
- 
 
 294 
 
- 
 
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- 
 
 296 
  @@:
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252 
  @@:
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;  ...                                   ; 5 Get driver name
253 
 
 298 
 
254 
  .doesnt_exist:
 299 
  .doesnt_exist: