forked from KolibriOS/kolibrios
311 lines
6.6 KiB
PHP
311 lines
6.6 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2009. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; STACK.INC ;;
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;; ;;
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;; BASIC TCP/IP stack for KolibriOS ;;
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;; ;;
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;; Written by hidnplayr@kolibrios.org ;;
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;; ;;
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;; based on the work of Mike Hibbett, mikeh@oceanfree.net ;;
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;; but also Paolo Franchetti ;;
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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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$Revision$
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uglobal
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last_1sTick db ?
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last_1hsTick dd ?
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endg
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MAX_NET_DEVICES equ 16
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MIN_EPHEMERAL_PORT equ 49152
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MAX_EPHEMERAL_PORT equ 61000
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ETHER equ 1337
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ETHER_ARP equ 0x0608
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;AF_UNSPEC equ 0
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;AF_UNIX equ 1
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AF_INET4 equ 2
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;AF_AX25 equ 3
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;AF_IPX equ 4
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;AF_APPLETALK equ 5
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;AF_NETROM equ 6
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;AF_BRIDGE equ 7
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;AF_AAL5 equ 8
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;AF_X25 equ 9
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;AF_INET6 equ 10
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;AF_MAX equ 12
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IP_PROTO_IP equ 0
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IP_PROTO_ICMP equ 1
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IP_PROTO_TCP equ 6
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IP_PROTO_UDP equ 17
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; Socket types
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SOCK_STREAM = 1
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SOCK_DGRAM = 2
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SOCK_RAW = 3
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; TCP opening modes
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SOCKET_PASSIVE equ 0
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SOCKET_ACTIVE equ 1
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include "queue.inc"
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include "ARP.inc"
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include "IPv4.inc"
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include "ethernet.inc"
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include "socket.inc"
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;include "tcp.inc"
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include "udp.inc"
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include "icmp.inc"
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;-----------------------------------------------
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;
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; stack_init
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;
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; This function calls all network init procedures
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;
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; IN: /
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; OUT: /
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;
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;-----------------------------------------------
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align 4
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stack_init:
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call ETH_init
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call IPv4_init
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call ARP_init
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call UDP_init
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call ICMP_init
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call socket_init
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mov al, 0x0 ; set up 1s timer
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out 0x70, al
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in al, 0x71
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mov [last_1sTick], al
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ret
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;-----------------------------------------------
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;
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; stack_handler
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;
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; This function calls all network init procedures
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;
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; IN: /
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; OUT: /
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;
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;-----------------------------------------------
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align 4
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stack_handler:
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cmp [ETH_RUNNING], 0
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je .exit
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call ETH_handler ; handle all queued ethernet packets
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call ETH_send_queued
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; Test for 10ms tick, call tcp timer
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mov eax, [timer_ticks]
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cmp eax, [last_1hsTick]
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je .exit
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mov [last_1hsTick], eax
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; call tcp_tx_handler
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.sec_tick:
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; Test for 1 second event, call 1s timer functions
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mov al, 0x0 ;second
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out 0x70, al
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in al, 0x71
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cmp al, [last_1sTick]
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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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.exit:
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ret
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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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proc checksum_jb stdcall uses ebx esi ecx,\
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buf_ptr:DWORD, buf_size:DWORD
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xor eax, eax
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xor ebx, ebx ;accumulator
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mov esi, dword[buf_ptr]
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mov ecx, dword[buf_size]
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shr ecx, 1 ; ecx=ecx/2
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jnc @f ; if CF==0 then size is even number
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mov bh, byte[esi + ecx*2]
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@@:
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cld
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.loop:
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lodsw ;eax=word[esi],esi=esi+2
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xchg ah,al ;cause must be a net byte-order
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add ebx, eax
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loop .loop
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mov eax, ebx
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shr eax, 16
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add ax, bx
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not ax
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ret
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endp
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;----------------------------------------------------------------
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;
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; System function to work with network devices (73)
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;
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;----------------------------------------------------------------
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align 4
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sys_network:
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cmp ebx, -1
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jne @f
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mov eax, [ETH_RUNNING]
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jmp .return
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@@:
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cmp bh, MAX_NET_DEVICES ; Check if device number exists
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jge .doesnt_exist
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mov esi, ebx
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and esi, 0x0000ff00
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shr esi, 6
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cmp dword [esi + ETH_DRV_LIST], 0 ; check if driver is running
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je .doesnt_exist
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test bl, bl ; 0 = Get device type (ethernet/token ring/...)
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jnz @f
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; todo
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xor eax, eax
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jmp .return
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@@:
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dec bl ; 1 = Get device name
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jnz @f
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mov esi, [esi + ETH_DRV_LIST]
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mov esi, [esi + ETH_DEVICE.name]
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mov edi, ecx
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mov ecx, 64 ; max length
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repnz movsb
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xor eax, eax
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jmp .return
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@@:
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dec bl ; 2 = Reset the device
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jnz @f
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mov esi, [esi + ETH_DRV_LIST]
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call [esi + ETH_DEVICE.reset]
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jmp .return
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@@:
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dec bl ; 3 = Stop driver for this device
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jnz @f
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mov esi, [esi + ETH_DRV_LIST]
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call [esi + ETH_DEVICE.unload]
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jmp .return
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@@:
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.doesnt_exist:
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DEBUGF 1,"sys_network: invalid device/function specified!\n"
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mov eax, -1
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.return:
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mov [esp+28+4], eax
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ret
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;----------------------------------------------------------------
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;
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; System Function To work with Protocols (75)
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;
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;----------------------------------------------------------------
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align 4
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sys_protocols:
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cmp bh, MAX_NET_DEVICES ; Check if device number exists
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jge .doesnt_exist
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mov esi, ebx
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and esi, 0x0000ff00
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shr esi, 6
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cmp dword [esi + ETH_DRV_LIST], 0 ; check if driver is running TODO: check other lists too
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je .doesnt_exist
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push .return ; return address (we will be using jumps instead of calls)
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mov eax, ebx ; set ax to protocol number
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shr eax, 16 ;
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cmp ax , IP_PROTO_IP
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je IPv4_API
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cmp ax , IP_PROTO_ICMP
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je ICMP_API
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cmp ax , IP_PROTO_UDP
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je UDP_API
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cmp ax , IP_PROTO_TCP
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; je TCP_API
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cmp ax , ETHER_ARP
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je ARP_API
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cmp ax , ETHER
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je ETH_API
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add esp, 4 ; if we reached here, no function was called, so we need to balance stack
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.doesnt_exist:
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DEBUGF 1,"sys_protocols: protocol %u doesnt exist on device %u!\n",ax, bh
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mov eax, -1
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.return:
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mov [esp+28+4], eax
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ret |