forked from KolibriOS/kolibrios
509 lines
11 KiB
PHP
509 lines
11 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Copyright (C) KolibriOS team 2004-2008. All rights reserved. ;;
|
|
;; Distributed under terms of the GNU General Public License ;;
|
|
;; ;;
|
|
;; ETHERNET.INC ;;
|
|
;; ;;
|
|
;; Ethernet network layer for KolibriOS ;;
|
|
;; ;;
|
|
;; Written by hidnplayr@kolibrios.org ;;
|
|
;; ;;
|
|
;; GNU GENERAL PUBLIC LICENSE ;;
|
|
;; Version 2, June 1991 ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
$Revision: 983 $
|
|
|
|
MAX_ETH_DEVICES equ MAX_NET_DEVICES
|
|
ETH_QUEUE_SIZE equ 16
|
|
|
|
struct ETH_FRAME
|
|
.DstMAC dp ? ; destination MAC-address [6 bytes]
|
|
.SrcMAC dp ? ; source MAC-address [6 bytes]
|
|
.Type dw ? ; type of the upper-layer protocol [2 bytes]
|
|
.Data: ; data [46-1500 bytes]
|
|
ends
|
|
|
|
struct ETH_DEVICE
|
|
.unload dd ?
|
|
.reset dd ?
|
|
.transmit dd ?
|
|
.set_MAC dd ?
|
|
.get_MAC dd ?
|
|
.set_mode dd ?
|
|
.get_mode dd ?
|
|
|
|
.bytes_tx dq ?
|
|
.bytes_rx dq ?
|
|
.packets_tx dd ?
|
|
.packets_rx dd ?
|
|
.mode dd ? ; This dword contains cable status (10mbit/100mbit, full/half duplex, auto negotiation or not,..)
|
|
.name dd ?
|
|
.mac dp ?
|
|
ends ; the rest of the device struct depends on the type of device
|
|
|
|
|
|
align 4
|
|
uglobal
|
|
|
|
ETH_RUNNING dd ?
|
|
ETH_DRV_LIST rd MAX_ETH_DEVICES
|
|
ETH_IN_QUEUE rd 3*ETH_QUEUE_SIZE+3
|
|
ETH_OUT_QUEUE rd 3*ETH_QUEUE_SIZE+3
|
|
endg
|
|
|
|
|
|
;-----------------------------------------------
|
|
;
|
|
; ETH_init
|
|
;
|
|
; This function resets all ethernet variables
|
|
;
|
|
; IN: /
|
|
; OUT: /
|
|
;
|
|
;-----------------------------------------------
|
|
|
|
align 4
|
|
ETH_init:
|
|
|
|
xor eax, eax
|
|
mov edi, ETH_RUNNING
|
|
mov ecx, (1+MAX_ETH_DEVICES)
|
|
rep stosd
|
|
|
|
mov dword [ETH_IN_QUEUE], eax
|
|
mov dword [ETH_IN_QUEUE+4], ETH_IN_QUEUE + queue.data
|
|
mov dword [ETH_IN_QUEUE+8], ETH_IN_QUEUE + queue.data
|
|
|
|
mov dword [ETH_OUT_QUEUE], eax
|
|
mov dword [ETH_OUT_QUEUE+4], ETH_OUT_QUEUE + queue.data
|
|
mov dword [ETH_OUT_QUEUE+8], ETH_OUT_QUEUE + queue.data
|
|
|
|
ret
|
|
|
|
|
|
|
|
;---------------------------------------------------------
|
|
;
|
|
; ETH_Add_Device:
|
|
;
|
|
; This function is called by ethernet drivers,
|
|
; to register each running ethernet device to the kernel
|
|
;
|
|
; IN: Pointer to device structure in ebx
|
|
; OUT: Device num in eax, -1 on error
|
|
;
|
|
;---------------------------------------------------------
|
|
|
|
align 4
|
|
ETH_Add_Device:
|
|
|
|
DEBUGF 1,"ETH_Add_Device: %x\n", ebx
|
|
cmp [ETH_RUNNING], MAX_ETH_DEVICES
|
|
jge .error
|
|
|
|
mov eax, ebx
|
|
mov ecx, MAX_ETH_DEVICES ; We need to check whole list because a device may be removed without re-organizing list
|
|
mov edi, ETH_DRV_LIST
|
|
|
|
cld
|
|
repne scasd ; See if device is already in the list
|
|
jz .error
|
|
|
|
xor eax, eax
|
|
mov ecx, MAX_ETH_DEVICES
|
|
mov edi, ETH_DRV_LIST
|
|
|
|
repne scasd ; Find empty spot in the list
|
|
jnz .error
|
|
|
|
sub edi, 4
|
|
mov [edi], ebx ; add device to list
|
|
|
|
sub edi, ETH_DRV_LIST ; edi = 4*device num Calculate device number in eax
|
|
mov eax, edi ; edx = 4*device num
|
|
shr eax, 2
|
|
|
|
; shr eax, 1 ; edx = 2*device num
|
|
; add edi, eax ; edi = 6*device_num Meanwhile, calculate MAC offset in edi
|
|
; shr eax, 1 ; edx = device num
|
|
; add edi, MAC_LIST ; edi = MAC_LIST+6*device_num
|
|
; push eax
|
|
|
|
; push edi
|
|
; call [ebx+ETH_DEVICE.get_MAC] ; Get MAC address from driver
|
|
; pop edi
|
|
;
|
|
; stosd ; Write MAC address to the MAC list
|
|
; mov ax, bx ;
|
|
; stosw ;
|
|
|
|
inc [ETH_RUNNING] ; Indicate that one more ethernet device is up and running
|
|
; pop eax ; Output device num in eax
|
|
DEBUGF 1,"- succes: %u\n",eax
|
|
ret
|
|
|
|
.error:
|
|
or eax, -1
|
|
DEBUGF 1,"- fail\n"
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
;--------------------------------
|
|
;
|
|
; ETH_Remove_Device:
|
|
;
|
|
; This function is called by ethernet drivers,
|
|
; to unregister ethernet devices from the kernel
|
|
;
|
|
; IN: Pointer to device structure in ebx
|
|
; OUT: eax: -1 on error
|
|
;
|
|
;--------------------------------
|
|
|
|
align 4
|
|
ETH_Remove_Device:
|
|
|
|
cmp [ETH_RUNNING], 0
|
|
je .error
|
|
|
|
mov eax, ebx
|
|
mov ecx, MAX_ETH_DEVICES
|
|
mov edi, ETH_DRV_LIST
|
|
|
|
repne scasd
|
|
jnz .error
|
|
|
|
xor eax, eax
|
|
mov dword [edi-4], eax
|
|
|
|
dec [ETH_RUNNING]
|
|
|
|
ret
|
|
|
|
.error:
|
|
or eax, -1
|
|
|
|
ret
|
|
|
|
|
|
|
|
;-------------------------------------------------------------
|
|
;
|
|
; ETH_Receiver:
|
|
;
|
|
; This function is called by ethernet drivers,
|
|
; It pushes the received ethernet packets onto the eth_in_queue
|
|
;
|
|
; IN: Pointer to buffer in [esp], size of buffer in [esp-4], pointer to eth_device in ebx
|
|
; OUT: /
|
|
;
|
|
;-------------------------------------------------------------
|
|
|
|
align 4
|
|
ETH_Receiver:
|
|
DEBUGF 1,"ETH_Receiver \n"
|
|
|
|
add_to_queue ETH_IN_QUEUE, ETH_QUEUE_SIZE, .gohome
|
|
|
|
.gohome:
|
|
ret
|
|
|
|
|
|
|
|
|
|
|
|
;-------------------------------------------------------------
|
|
;
|
|
; ETH_Handler:
|
|
;
|
|
; Handles all queued eth packets (called from kernel's main_loop)
|
|
;
|
|
; IN: /
|
|
; OUT: /
|
|
;
|
|
;-------------------------------------------------------------
|
|
|
|
align 4
|
|
ETH_Handler:
|
|
|
|
get_from_queue ETH_IN_QUEUE, ETH_QUEUE_SIZE, .gohome
|
|
|
|
DEBUGF 1,"ETH_Handler - size: %u\n", ecx
|
|
cmp ecx, 60 ; check packet length
|
|
jl .dump
|
|
sub ecx, ETH_FRAME.Data
|
|
|
|
lea edx, [eax + ETH_FRAME.Data]
|
|
mov ax , [eax + ETH_FRAME.Type]
|
|
|
|
cmp ax, ETHER_IPv4
|
|
je IPv4_Handler
|
|
|
|
cmp ax, ETHER_ARP
|
|
je ARP_Handler
|
|
|
|
DEBUGF 1,"Unknown ethernet packet type %x\n", ax
|
|
|
|
.dump:
|
|
DEBUGF 1,"Dumping packet\n"
|
|
call kernel_free
|
|
add esp, 4
|
|
|
|
.gohome:
|
|
ret ; return 1. to get more from queue / 2. to caller
|
|
|
|
|
|
|
|
;-----------------------------------------------------------------
|
|
;
|
|
; ETH_Sender:
|
|
;
|
|
; This function sends an ethernet packet to the correct driver.
|
|
;
|
|
; IN: Pointer to buffer in [esp]
|
|
; size of buffer in [esp+4]
|
|
; pointer to device struct in ebx
|
|
; OUT: /
|
|
;
|
|
;-----------------------------------------------------------------
|
|
|
|
align 4
|
|
ETH_Sender:
|
|
DEBUGF 1,"ETH_Sender \n"
|
|
|
|
add_to_queue ETH_OUT_QUEUE, ETH_QUEUE_SIZE, .gohome
|
|
|
|
.gohome:
|
|
ret
|
|
|
|
|
|
align 4
|
|
ETH_send_queued:
|
|
|
|
get_from_queue ETH_OUT_QUEUE, ETH_QUEUE_SIZE, .gohome
|
|
|
|
call ETH_struc2dev ; convert struct ptr to device num (this way we know if driver is still mounted)
|
|
cmp edi, -1
|
|
je .fail
|
|
|
|
DEBUGF 1,"ETH_Sender - device: %u\n", edi
|
|
|
|
jmp [ebx+ETH_DEVICE.transmit]
|
|
|
|
.fail:
|
|
call kernel_free
|
|
add esp, 4 ; pop (balance stack)
|
|
DEBUGF 1,"ETH_Sender - fail\n"
|
|
.gohome:
|
|
ret
|
|
|
|
;---------------------------------------------------------------------------
|
|
;
|
|
; ETH_struc2dev
|
|
;
|
|
; IN: pointer to device struct in ebx
|
|
;
|
|
; OUT: edi is -1 on error, device number otherwise
|
|
;
|
|
;---------------------------------------------------------------------------
|
|
|
|
align 4
|
|
ETH_struc2dev:
|
|
push eax ecx
|
|
|
|
mov eax, ebx
|
|
mov ecx, MAX_ETH_DEVICES
|
|
mov edi, ETH_DRV_LIST
|
|
|
|
repne scasd
|
|
jnz .error
|
|
|
|
sub edi, ETH_DRV_LIST+4
|
|
shr edi, 2
|
|
|
|
pop ecx eax
|
|
ret
|
|
.error:
|
|
or edi, -1
|
|
pop ecx eax
|
|
|
|
ret
|
|
|
|
|
|
;---------------------------------------------------------------------------
|
|
;
|
|
; ETH_create_Packet
|
|
;
|
|
; IN: pointer to source mac in eax
|
|
; pointer to destination mac in ebx
|
|
; packet size in ecx
|
|
; device number in edx
|
|
; protocol in di
|
|
;
|
|
; OUT: edi is -1 on error, pointer to buffer otherwise ;; TODO: XCHG EDX AND EBX output parameters
|
|
; eax points to buffer start
|
|
; ebx is size of complete buffer
|
|
; ecx is unchanged (packet size of embedded data)
|
|
; edx is pointer to device structure
|
|
; esi points to procedure wich needs to be called to send packet
|
|
;
|
|
;---------------------------------------------------------------------------
|
|
|
|
align 4
|
|
ETH_create_Packet:
|
|
|
|
DEBUGF 1,"Creating Ethernet Packet:\n"
|
|
|
|
cmp ecx, 60-ETH_FRAME.Data
|
|
jl .exit
|
|
cmp ecx, 1514-ETH_FRAME.Data
|
|
jg .exit
|
|
|
|
push ecx di eax ebx edx
|
|
|
|
add ecx, ETH_FRAME.Data
|
|
push ecx
|
|
push ecx
|
|
call kernel_alloc
|
|
test eax, eax
|
|
jz .pop_exit
|
|
|
|
pop ecx
|
|
pop edx
|
|
|
|
DEBUGF 1,"1"
|
|
mov edi, eax
|
|
pop esi
|
|
movsd
|
|
movsw
|
|
DEBUGF 1,"2"
|
|
pop esi
|
|
movsd
|
|
movsw
|
|
DEBUGF 1,"3"
|
|
pop ax
|
|
stosw
|
|
DEBUGF 1,"4"
|
|
|
|
lea eax, [edi - ETH_FRAME.Data] ; Set eax to buffer start
|
|
mov ebx, ecx ; Set ebx to complete buffer size
|
|
pop ecx
|
|
mov esi, ETH_Sender
|
|
|
|
xor edx, edx ;;;; TODO: Fixme
|
|
mov edx, [ETH_DRV_LIST + edx]
|
|
|
|
DEBUGF 1,"done: %x size:%u device:%x\n", eax, ebx, edx
|
|
ret
|
|
|
|
.pop_exit:
|
|
add esp, 18
|
|
.exit:
|
|
or edi, -1
|
|
ret
|
|
|
|
|
|
|
|
|
|
;---------------------------------------------------------------------------
|
|
;
|
|
; ETH_API
|
|
;
|
|
; This function is called by system function 75
|
|
;
|
|
; IN: subfunction number in bl
|
|
; device number in bh
|
|
; ecx, edx, .. depends on subfunction
|
|
;
|
|
; OUT:
|
|
;
|
|
;---------------------------------------------------------------------------
|
|
|
|
align 4
|
|
ETH_API:
|
|
|
|
movzx eax, bh
|
|
shl eax, 2
|
|
|
|
test bl, bl
|
|
jz .packets_tx ; 0
|
|
dec bl
|
|
jz .packets_rx ; 1
|
|
dec bl
|
|
jz .bytes_tx ; 2
|
|
dec bl
|
|
jz .bytes_rx ; 3
|
|
dec bl
|
|
jz .read_mac ; 4
|
|
dec bl
|
|
jz .write_mac ; 5
|
|
dec bl
|
|
jz .in_queue ; 6
|
|
dec bl
|
|
jz .out_queue ; 7
|
|
|
|
|
|
.error:
|
|
mov eax, -1
|
|
ret
|
|
|
|
.packets_tx:
|
|
add eax, ETH_DRV_LIST
|
|
mov eax, [eax]
|
|
mov eax, [eax + ETH_DEVICE.packets_tx]
|
|
ret
|
|
|
|
.packets_rx:
|
|
add eax, ETH_DRV_LIST
|
|
mov eax, [eax]
|
|
mov eax, [eax + ETH_DEVICE.packets_rx]
|
|
ret
|
|
|
|
.bytes_tx:
|
|
add eax, ETH_DRV_LIST
|
|
mov eax, [eax]
|
|
mov eax, dword [eax + ETH_DEVICE.bytes_tx + 4]
|
|
ret
|
|
|
|
.bytes_rx:
|
|
add eax, ETH_DRV_LIST
|
|
mov eax, [eax]
|
|
mov eax, dword [eax + ETH_DEVICE.bytes_rx + 4]
|
|
ret
|
|
|
|
.read_mac:
|
|
add eax, ETH_DRV_LIST
|
|
mov eax, [eax]
|
|
; push eax
|
|
; call dword [eax + ETH_DEVICE.get_MAC]
|
|
; pop eax
|
|
movzx ebx, word [eax + ETH_DEVICE.mac]
|
|
mov eax, dword [eax + ETH_DEVICE.mac + 2]
|
|
mov [esp+20+4], ebx ; TODO: fix this ugly code
|
|
ret
|
|
|
|
.write_mac:
|
|
push ecx
|
|
push dx
|
|
add eax, ETH_DRV_LIST
|
|
mov eax, [eax]
|
|
mov eax, dword [eax + ETH_DEVICE.set_MAC]
|
|
call eax
|
|
ret
|
|
|
|
.in_queue:
|
|
add eax, ETH_IN_QUEUE
|
|
mov eax, [eax + queue.size]
|
|
ret
|
|
|
|
.out_queue:
|
|
add eax, ETH_OUT_QUEUE
|
|
mov eax, [eax + queue.size]
|
|
ret |