forked from KolibriOS/kolibrios
Network stack: dynamic sockets list, other small fixes
git-svn-id: svn://kolibrios.org@907 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
parent
2d73c440b4
commit
54e9661045
@ -20,6 +20,14 @@ irq0:
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mov ds, ax
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mov es, ax
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; cmp dword[CURRENT_TASK], 1
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; jnz @f
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; mov eax, [esp + 32]
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; cmp eax, idle_loop + 1
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; jz @f
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; DEBUGF 1, "K : OOOPS! EAX = 0x%x\n", eax
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; @@:
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inc dword [timer_ticks]
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mov eax, [timer_ticks]
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@ -524,20 +524,20 @@ endp
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; Also adjust PCI latency timer to a reasonable value, 32.
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proc adjust_pci_device
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DEBUGF 1,"K : adjust_pci_device\n"
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; DEBUGF 1,"K : adjust_pci_device\n"
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stdcall pci_read_config_word,PCI_COMMAND
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mov bx,ax
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or bx,PCI_COMMAND_MASTER or PCI_COMMAND_IO
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cmp ax,bx
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je @f
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DEBUGF 1,"K : adjust_pci_device: The PCI BIOS has not enabled this device!\nK : Updating PCI command %x->%x. pci_bus %x pci_device_fn %x\n",ax,bx,[pci_bus]:2,[pci_dev]:2
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; DEBUGF 1,"K : adjust_pci_device: The PCI BIOS has not enabled this device!\nK : Updating PCI command %x->%x. pci_bus %x pci_device_fn %x\n",ax,bx,[pci_bus]:2,[pci_dev]:2
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stdcall pci_write_config_word,PCI_COMMAND,ebx
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@@:
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stdcall pci_read_config_byte,PCI_LATENCY_TIMER
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cmp al,32
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jae @f
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DEBUGF 1,"K : adjust_pci_device: PCI latency timer (CFLT) is unreasonably low at %d.\nK : Setting to 32 clocks.\n",al
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; DEBUGF 1,"K : adjust_pci_device: PCI latency timer (CFLT) is unreasonably low at %d.\nK : Setting to 32 clocks.\n",al
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stdcall pci_write_config_byte,PCI_LATENCY_TIMER,32
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@@:
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ret
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@ -559,7 +559,7 @@ proc pci_bar_start,index:dword
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stdcall pci_read_config_dword,eax
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or eax,eax
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jz .not64
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DEBUGF 1,"K : pci_bar_start: Unhandled 64bit BAR\n"
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; DEBUGF 1,"K : pci_bar_start: Unhandled 64bit BAR\n"
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add esp,4
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or eax,-1
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ret
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@ -572,7 +572,7 @@ endp
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proc rtl8169_init_board
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DEBUGF 1,"K : rtl8169_init_board\n"
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; DEBUGF 1,"K : rtl8169_init_board\n"
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call adjust_pci_device
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@ -592,7 +592,7 @@ proc rtl8169_init_board
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; identify config method
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RTL_R32 RTL8169_REG_TxConfig
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and eax,0x7c800000
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DEBUGF 1,"K : rtl8169_init_board: TxConfig & 0x7c800000 = 0x%x\n",eax
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; DEBUGF 1,"K : rtl8169_init_board: TxConfig & 0x7c800000 = 0x%x\n",eax
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mov esi,mac_info-8
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@@: add esi,8
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mov ecx,eax
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@ -625,9 +625,9 @@ proc rtl8169_init_board
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jmp .match
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@@:
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; if unknown chip, assume array element #0, original RTL-8169 in this case
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DEBUGF 1,"K : rtl8169_init_board: PCI device: unknown chip version, assuming RTL-8169\n"
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; DEBUGF 1,"K : rtl8169_init_board: PCI device: unknown chip version, assuming RTL-8169\n"
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RTL_R32 RTL8169_REG_TxConfig
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DEBUGF 1,"K : rtl8169_init_board: PCI device: TxConfig = 0x%x\n",eax
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; DEBUGF 1,"K : rtl8169_init_board: PCI device: TxConfig = 0x%x\n",eax
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mov [rtl8169_tpc.chipset],0
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@ -642,7 +642,7 @@ endp
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proc rtl8169_hw_PHY_config
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DEBUGF 1,"K : rtl8169_hw_PHY_config: priv.mcfg=%d, priv.pcfg=%d\n",[rtl8169_tpc.mcfg],[rtl8169_tpc.pcfg]
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; DEBUGF 1,"K : rtl8169_hw_PHY_config: priv.mcfg=%d, priv.pcfg=%d\n",[rtl8169_tpc.mcfg],[rtl8169_tpc.pcfg]
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; DBG_PRINT("priv->mcfg=%d, priv->pcfg=%d\n", tpc->mcfg, tpc->pcfg);
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@ -705,7 +705,7 @@ proc rtl8169_hw_PHY_config
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jmp .exit
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.not_2_or_3:
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; DBG_PRINT("tpc->mcfg=%d. Discard hw PHY config.\n", tpc->mcfg);
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DEBUGF 1,"K : tpc.mcfg=%d, discard hw PHY config\n",[rtl8169_tpc.mcfg]
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; DEBUGF 1,"K : tpc.mcfg=%d, discard hw PHY config\n",[rtl8169_tpc.mcfg]
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.exit:
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ret
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endp
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@ -767,7 +767,7 @@ endp
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proc rtl8169_set_rx_mode
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DEBUGF 1,"K : rtl8169_set_rx_mode\n"
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; DEBUGF 1,"K : rtl8169_set_rx_mode\n"
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; IFF_ALLMULTI
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; Too many to filter perfectly -- accept all multicasts
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@ -785,7 +785,7 @@ endp
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proc rtl8169_init_ring
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DEBUGF 1,"K : rtl8169_init_ring\n"
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; DEBUGF 1,"K : rtl8169_init_ring\n"
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xor eax,eax
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mov [rtl8169_tpc.cur_rx],eax
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@ -834,7 +834,7 @@ endp
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proc rtl8169_hw_start
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DEBUGF 1,"K : rtl8169_hw_start\n"
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; DEBUGF 1,"K : rtl8169_hw_start\n"
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; Soft reset the chip
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RTL_W8 RTL8169_REG_ChipCmd,RTL8169_CMD_Reset
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@ -920,7 +920,7 @@ endp
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;***************************************************************************
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proc rtl8169_probe
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DEBUGF 1,"K : rtl8169_probe: 0x%x : 0x%x 0x%x\n",[io_addr]:8,[pci_bus]:2,[pci_dev]:2
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; DEBUGF 1,"K : rtl8169_probe: 0x%x : 0x%x 0x%x\n",[io_addr]:8,[pci_bus]:2,[pci_dev]:2
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call rtl8169_init_board
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@ -935,7 +935,7 @@ proc rtl8169_probe
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inc ebx
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loop @b
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DEBUGF 1,"K : rtl8169_probe: MAC = %x-%x-%x-%x-%x-%x\n",[node_addr+0]:2,[node_addr+1]:2,[node_addr+2]:2,[node_addr+3]:2,[node_addr+4]:2,[node_addr+5]:2
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; DEBUGF 1,"K : rtl8169_probe: MAC = %x-%x-%x-%x-%x-%x\n",[node_addr+0]:2,[node_addr+1]:2,[node_addr+2]:2,[node_addr+3]:2,[node_addr+4]:2,[node_addr+5]:2
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; Config PHY
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stdcall rtl8169_hw_PHY_config
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@ -995,7 +995,7 @@ endp
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;***************************************************************************
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proc rtl8169_reset
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DEBUGF 1,"K : rtl8169_reset: 0x%x : 0x%x 0x%x\n",[io_addr]:8,[pci_bus]:2,[pci_dev]:2
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; DEBUGF 1,"K : rtl8169_reset: 0x%x : 0x%x 0x%x\n",[io_addr]:8,[pci_bus]:2,[pci_dev]:2
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mov [rtl8169_tpc.TxDescArrays],rtl8169_tx_ring
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; Tx Desscriptor needs 256 bytes alignment
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@ -1040,7 +1040,7 @@ endp
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;***************************************************************************
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proc rtl8169_transmit
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DEBUGF 1,"K : rtl8169_transmit\n" ;: 0x%x : 0x%x 0x%x 0x%x 0x%x\n",[io_addr]:8,edi,bx,ecx,esi
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; DEBUGF 1,"K : rtl8169_transmit\n" ;: 0x%x : 0x%x 0x%x 0x%x 0x%x\n",[io_addr]:8,edi,bx,ecx,esi
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push ecx edx esi
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mov eax,MAX_ETH_FRAME_SIZE
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@ -1118,7 +1118,7 @@ proc rtl8169_transmit
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jnz @f
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stdcall udelay,10
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loop @b
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DEBUGF 1,"K : rtl8169_transmit: TX Time Out\n"
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; DEBUGF 1,"K : rtl8169_transmit: TX Time Out\n"
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@@:
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ret
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@ -1176,7 +1176,7 @@ proc rtl8169_poll
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add eax,-4
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mov [eth_rx_data_len],ax
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DEBUGF 1,"K : rtl8169_poll: data length = %u\n",ax
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; DEBUGF 1,"K : rtl8169_poll: data length = %u\n",ax
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push eax
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mov ecx,eax
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@ -1201,7 +1201,7 @@ proc rtl8169_poll
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sub [ebx + rtl8169_RxDesc.buf_addr],OS_BASE ; shurf 28.09.2008
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jmp @f
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.else:
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DEBUGF 1,"K : rtl8169_poll: Rx Error\n"
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; DEBUGF 1,"K : rtl8169_poll: Rx Error\n"
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; FIXME: shouldn't I reset the status on an error
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@@:
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inc [rtl8169_tpc.cur_rx]
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@ -353,6 +353,9 @@ endp
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; All registers may be destroyed
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;
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;***************************************************************************
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uglobal
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ether_IP_handler_cnt dd ?
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endg
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ether_IP_handler:
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mov eax, EMPTY_QUEUE
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call dequeue
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@ -376,6 +379,9 @@ ether_IP_handler:
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cld
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rep movsd
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; inc [ether_IP_handler_cnt]
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; DEBUGF 1, "K : ether_IP_handler (%u)\n", [ether_IP_handler_cnt]
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; And finally, place the buffer in the IPRX queue
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pop ebx
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mov eax, IPIN_QUEUE
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@ -462,16 +468,18 @@ eth_rx:
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cmp ax, ETHER_ARP
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je .is_arp ; It is ARP
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DEBUGF 1,"K : eth_rx - dumped (%u)\n", ax
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inc [dumped_rx_count]
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jmp .exit ; If not IP or ARP, ignore
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.is_ip:
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DEBUGF 1,"K : eth_rx - IP packet\n"
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; DEBUGF 1,"K : eth_rx - IP packet\n"
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inc dword [ip_rx_count]
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call ether_IP_handler
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jmp .exit
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.is_arp:
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DEBUGF 1,"K : eth_rx - ARP packet\n"
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; DEBUGF 1,"K : eth_rx - ARP packet\n"
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; At this point, the packet is still in the Ether_buffer
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call arp_handler
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@ -87,6 +87,10 @@ macro GET_IHL reg, header_addr
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}
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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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; Function
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; ip_rx
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@ -114,11 +118,13 @@ local buffer_number dd ?
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mov ebx, eax ; ebx=pointer to IP_PACKET
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; DEBUGF 1, "K : ip_rx - proto: %u\n", [ebx + IP_PACKET.Protocol]:1
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; Validate the IP checksum
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mov dx, word[ebx + IP_PACKET.HeaderChecksum]
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xchg dh,dl ; Get the checksum in intel format
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mov [ebx + IP_PACKET.HeaderChecksum], word 0 ; clear checksum field - need to when
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mov [ebx + IP_PACKET.HeaderChecksum], 0 ; clear checksum field - need to when
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; recalculating checksum
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; this needs two data pointers and two size #.
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; 2nd pointer can be of length 0
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@ -127,8 +133,12 @@ local buffer_number dd ?
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stdcall checksum_jb, ebx, ecx ;buf_ptr, buf_size
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cmp dx, ax
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; DEBUGF 1, "K : ip_rx - checksums: %x - %x\n", dx, ax
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jnz .dump.1 ;if CHECKSUM isn't valid then dump packet
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mov edx, ebx ; EDX (IP-BUFFER POINTER) WILL BE USED FOR *_rx HANDLERS BELOW!!!
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jnz .dump ;if CHECKSUM isn't valid then dump packet
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; DEBUGF 1, "K : ip_rx - dest: %x - %x\n", [ebx + IP_PACKET.DestinationAddress], [stack_ip]
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; Validate the IP address, if it isn't broadcast
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mov eax, [stack_ip]
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@ -137,22 +147,37 @@ local buffer_number dd ?
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; If the IP address is 255.255.255.255, accept it
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; - it is a broadcast packet, which we need for dhcp
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cmp dword[ebx + IP_PACKET.DestinationAddress], 0xffffffff
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jne .dump
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mov eax, [ebx + IP_PACKET.DestinationAddress]
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cmp eax, 0xffffffff
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;je @f
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;mov ecx, [stack_ip]
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;and eax, [subnet_mask]
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;and ecx, [subnet_mask]
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;cmp eax, ecx
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;jne .dump.2
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;mov eax, [ebx + IP_PACKET.DestinationAddress]
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;or eax, [subnet_mask]
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;cmp eax, 0xffffffff
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jne .dump.2
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@@:
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mov al, [ebx + IP_PACKET.VersionAndIHL]
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and al, 0x0f ;get IHL(header length)
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cmp al, 0x05 ;if IHL!= 5*4(20 bytes)
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jnz .dump ;then dump it
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; DEBUGF 1, "K : ip_rx - ihl: %x - 05\n", al
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jnz .dump.3 ;then dump it
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cmp byte[ebx + IP_PACKET.TimeToLive], byte 0
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je .dump ;if TTL==0 then dump it
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; DEBUGF 1, "K : ip_rx - ttl: %x - 00\n", [ebx + IP_PACKET.TimeToLive]:2
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mov ax, word[ebx + IP_PACKET.FlagsAndFragmentOffset]
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cmp [ebx + IP_PACKET.TimeToLive], 0
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je .dump.4 ;if TTL==0 then dump it
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mov ax, [ebx + IP_PACKET.FlagsAndFragmentOffset]
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and ax, 0xFFBF ;get flags
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; DEBUGF 1, "K : ip_rx - flags: %x - 0000\n", ax
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cmp ax, 0 ;if some flags was set then we dump this packet
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jnz .dump ;the flags should be used for fragmented packets
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jnz .dump.5 ;the flags should be used for fragmented packets
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; Check the protocol, and call the appropriate handler
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; Each handler will re-use or free the queue buffer as appropriate
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@ -161,7 +186,7 @@ local buffer_number dd ?
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cmp al , PROTOCOL_TCP
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jne .not_tcp
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DEBUGF 1,"K : ip_rx - TCP packet\n"
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; DEBUGF 1,"K : ip_rx - TCP packet\n"
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mov eax, dword[buffer_number]
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call tcp_rx
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jmp .exit
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@ -169,29 +194,48 @@ local buffer_number dd ?
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.not_tcp:
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cmp al, PROTOCOL_UDP
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jne .not_udp
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DEBUGF 1,"K : ip_rx - UDP packet\n"
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; DEBUGF 1,"K : ip_rx - UDP packet\n"
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mov eax, dword[buffer_number]
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call udp_rx
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jmp .exit
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.not_udp:
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cmp al , PROTOCOL_ICMP
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jne .dump ;protocol ain't supported
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cmp al, PROTOCOL_ICMP
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jne .dump.6 ;protocol ain't supported
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DEBUGF 1,"K : ip_rx - ICMP packet\n"
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; DEBUGF 1,"K : ip_rx - ICMP packet\n"
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;GET_IHL ecx, ebx + IP_PACKET.VersionAndIHL ;get packet length in ecx
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mov eax, dword[buffer_number]
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stdcall icmp_rx,eax,ebx,ecx ;buffer_number,IPPacketBase,IPHeaderLength
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jmp .exit
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.dump:
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; No protocol handler available, so
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; silently dump the packet, freeing up the queue buffer
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.dump.1:
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DEBUGF 1, "K : ip_rx - dumped (checksum: 0x%x-0x%x)\n", dx, ax
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jmp .dump.x
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inc dword [dumped_rx_count]
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.dump.2:
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DEBUGF 1, "K : ip_rx - dumped (ip: %u.%u.%u.%u)\n", [ebx + IP_PACKET.DestinationAddress + 0]:1, [ebx + IP_PACKET.DestinationAddress + 1]:1, [ebx + IP_PACKET.DestinationAddress + 2]:1, [ebx + IP_PACKET.DestinationAddress + 3]:1
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jmp .dump.x
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mov eax, dword[buffer_number]
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.dump.3:
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DEBUGF 1, "K : ip_rx - dumped (ihl: %u)\n", al
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jmp .dump.x
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.dump.4:
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DEBUGF 1, "K : ip_rx - dumped (ihl: %u)\n", [ebx + IP_PACKET.TimeToLive]
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jmp .dump.x
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.dump.5:
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DEBUGF 1, "K : ip_rx - dumped (flags: 0x%x)\n", ax
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jmp .dump.x
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.dump.6:
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DEBUGF 1, "K : ip_rx - dumped (proto: %u)\n", [ebx + IP_PACKET.Protocol]:1
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.dump.x:
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inc dword[dumped_rx_count]
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mov eax, [buffer_number]
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call freeBuff
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.exit:
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@ -43,18 +43,19 @@ $Revision$
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; all other registers preserved
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; This always works, so no error returned
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;***************************************************************************
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uglobal
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freeBuff_cnt dd ?
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endg
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freeBuff:
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; inc [freeBuff_cnt]
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; DEBUGF 1, "K : freeBuff (%u)\n", [freeBuff_cnt]
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push ebx
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push ecx
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mov ebx, EMPTY_QUEUE
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shl ebx, 1
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add ebx, queues
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mov ebx, queues + EMPTY_QUEUE * 2
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cli ; Ensure that another process does not interfer
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movzx ecx, word [ebx]
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mov cx, [ebx]
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mov [ebx], ax
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shl eax, 1
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add eax, queueList
|
||||
mov [eax], cx
|
||||
mov [queueList + eax * 2], cx
|
||||
sti
|
||||
pop ecx
|
||||
pop ebx
|
||||
@ -105,7 +106,12 @@ qs_exit:
|
||||
; all other registers preserved
|
||||
; This always works, so no error returned
|
||||
;***************************************************************************
|
||||
uglobal
|
||||
queue_cnt dd ?
|
||||
endg
|
||||
queue:
|
||||
; inc [queue_cnt]
|
||||
; DEBUGF 1, "K : queue (%u)\n", [queue_cnt]
|
||||
push ebx
|
||||
shl ebx, 1
|
||||
add ebx, queueList ; eax now holds address of queue entry
|
||||
@ -155,6 +161,9 @@ qu_exit:
|
||||
; all other registers preserved
|
||||
;
|
||||
;***************************************************************************
|
||||
uglobal
|
||||
dequeue_cnt dd ?
|
||||
endg
|
||||
dequeue:
|
||||
push ebx
|
||||
shl eax, 1
|
||||
@ -164,6 +173,8 @@ dequeue:
|
||||
movzx eax, word [eax]
|
||||
cmp ax, NO_BUFFER
|
||||
je dq_exit
|
||||
; inc [dequeue_cnt]
|
||||
; DEBUGF 1, "K : dequeue (%u)\n", [dequeue_cnt]
|
||||
push eax
|
||||
shl eax, 1
|
||||
add eax, queueList ; eax now holds address of queue entry
|
||||
|
File diff suppressed because it is too large
Load Diff
@ -37,7 +37,7 @@ $Revision$
|
||||
|
||||
uglobal
|
||||
StackCounters:
|
||||
dumped_rx_count: dd 0
|
||||
dumped_rx_count dd 0
|
||||
arp_tx_count: dd 0
|
||||
arp_rx_count: dd 0
|
||||
ip_rx_count: dd 0
|
||||
@ -46,9 +46,9 @@ endg
|
||||
|
||||
; socket buffers
|
||||
SOCKETBUFFSIZE equ 4096 ; state + config + buffer.
|
||||
SOCKETHEADERSIZE equ 76 ; thus 4096 - SOCKETHEADERSIZE bytes data
|
||||
SOCKETHEADERSIZE equ 76+8+8 ; thus 4096 - SOCKETHEADERSIZE bytes data
|
||||
|
||||
NUM_SOCKETS equ 16 ; Number of open sockets supported. Was 20
|
||||
;NUM_SOCKETS equ 16 ; Number of open sockets supported. Was 20
|
||||
|
||||
; IPBUFF status values
|
||||
BUFF_EMPTY equ 0
|
||||
@ -59,6 +59,7 @@ BUFF_TX_FULL equ 3
|
||||
NUM_IPBUFFERS equ 20 ; buffers allocated for TX/RX
|
||||
|
||||
NUMQUEUES equ 4
|
||||
|
||||
EMPTY_QUEUE equ 0
|
||||
IPIN_QUEUE equ 1
|
||||
IPOUT_QUEUE equ 2
|
||||
@ -94,7 +95,7 @@ ethernet_active equ stack_data + 9
|
||||
; TODO :: empty memory area
|
||||
|
||||
; Address of selected socket
|
||||
sktAddr equ stack_data + 32
|
||||
;sktAddr equ stack_data + 32
|
||||
; Parameter to checksum routine - data ptr
|
||||
checkAdd1 equ stack_data + 36
|
||||
; Parameter to checksum routine - 2nd data ptr
|
||||
@ -110,8 +111,8 @@ checkResult equ stack_data + 48
|
||||
pseudoHeader equ stack_data + 50
|
||||
|
||||
; receive and transmit IP buffer allocation
|
||||
sockets equ stack_data + 62
|
||||
Next_free2 equ sockets + (SOCKETBUFFSIZE * NUM_SOCKETS)
|
||||
;sockets equ stack_data + 62
|
||||
Next_free2 equ stack_data + 62;Next_free2 equ sockets + (SOCKETBUFFSIZE * NUM_SOCKETS)
|
||||
; 1560 byte buffer for rx / tx ethernet packets
|
||||
Ether_buffer equ Next_free2
|
||||
Next_free3 equ Ether_buffer + 1518
|
||||
@ -128,9 +129,15 @@ last_1hsTick equ queueList + ( 2 * NUMQUEUEENTRIES )
|
||||
|
||||
|
||||
;resendQ equ 0x770000
|
||||
resendBuffer equ resendQ + ( 4 * NUMRESENDENTRIES ) ; for TCP
|
||||
;resendBuffer equ resendQ + ( 4 * NUMRESENDENTRIES ) ; for TCP ; XTODO: validate size
|
||||
resendBuffer equ resendQ + ( 8 * NUMRESENDENTRIES ) ; for TCP
|
||||
|
||||
|
||||
uglobal
|
||||
net_sockets_mutex dd 0
|
||||
net_sockets rd 2
|
||||
endg
|
||||
|
||||
; simple macro for memory set operation
|
||||
macro _memset_dw adr,value,amount
|
||||
{
|
||||
@ -151,9 +158,6 @@ macro _memset_dw adr,value,amount
|
||||
include "queue.inc"
|
||||
include "eth_drv/ethernet.inc"
|
||||
include "ip.inc"
|
||||
include "icmp.inc"
|
||||
include "tcp.inc"
|
||||
include "udp.inc"
|
||||
include "socket.inc"
|
||||
|
||||
;***************************************************************************
|
||||
@ -171,7 +175,8 @@ include "socket.inc"
|
||||
stack_init:
|
||||
; Init two address spaces with default values
|
||||
_memset_dw stack_data_start, 0, 0x20000/4
|
||||
_memset_dw resendQ, 0xFFFFFFFF, NUMRESENDENTRIES
|
||||
;_memset_dw resendQ, 0xFFFFFFFF, NUMRESENDENTRIES ; XTODO: validate size
|
||||
_memset_dw resendQ, 0xFFFFFFFF, NUMRESENDENTRIES * 2
|
||||
|
||||
; Queries initialization
|
||||
call queueInit
|
||||
@ -931,13 +936,11 @@ stack_get_packet:
|
||||
pop edx
|
||||
|
||||
push eax ; save address of IP data
|
||||
|
||||
; Get the address of the callers data
|
||||
mov edi,[TASK_BASE]
|
||||
add edi,TASKDATA.mem_start
|
||||
add edx,[edi]
|
||||
mov edi, edx
|
||||
|
||||
pop eax
|
||||
|
||||
mov ecx, 1500 ; should get the actual number of bytes to write
|
||||
|
File diff suppressed because it is too large
Load Diff
@ -71,7 +71,8 @@ end virtual
|
||||
; Free up (or re-use) IP buffer when finished
|
||||
;
|
||||
;***************************************************************************
|
||||
udp_rx:
|
||||
|
||||
proc udp_rx stdcall
|
||||
push eax
|
||||
|
||||
; First validate the header & checksum. Discard buffer if error
|
||||
@ -80,94 +81,83 @@ udp_rx:
|
||||
; IP Packet UDP Destination Port = local Port
|
||||
; IP Packet SA = Remote IP
|
||||
|
||||
movzx ebx, word [edx + 22] ; get the local port from
|
||||
mov ax, [edx + 20 + UDP_PACKET.DestinationPort] ; get the local port from
|
||||
; the IP packet's UDP header
|
||||
mov eax, SOCKETBUFFSIZE * NUM_SOCKETS
|
||||
mov ecx, NUM_SOCKETS
|
||||
|
||||
fs1:
|
||||
sub eax, SOCKETBUFFSIZE
|
||||
cmp [eax + sockets + 12], bx ; bx will hold the 'wrong' value,
|
||||
mov ebx, net_sockets_mutex
|
||||
call wait_mutex
|
||||
mov ebx, net_sockets
|
||||
|
||||
.next_socket:
|
||||
mov ebx, [ebx + SOCKET.NextPtr]
|
||||
or ebx, ebx
|
||||
jz .exit ; No match, so exit
|
||||
cmp [ebx + SOCKET.LocalPort], ax ; ax will hold the 'wrong' value,
|
||||
; but the comparision is correct
|
||||
loopnz fs1 ; Return back if no match
|
||||
jz fs_done
|
||||
jne .next_socket ; Return back if no match
|
||||
|
||||
; No match, so exit
|
||||
jmp udprx_001
|
||||
|
||||
fs_done:
|
||||
; For dhcp, we must allow any remote server to respond.
|
||||
; I will accept the first incoming response to be the one
|
||||
; I bind to, if the socket is opened with a destination IP address of
|
||||
; 255.255.255.255
|
||||
mov ebx, [eax + sockets + 16]
|
||||
cmp ebx, 0xffffffff
|
||||
je udprx_002
|
||||
cmp [ebx + SOCKET.RemoteIP], 0xffffffff
|
||||
je @f
|
||||
|
||||
mov ebx, [edx + 12] ; get the Source address from the IP packet
|
||||
cmp [eax + sockets + 16], ebx
|
||||
jne udprx_001 ; Quit if the source IP is not valid
|
||||
mov eax, [edx + IP_PACKET.SourceAddress] ; get the Source address from the IP packet
|
||||
cmp [ebx + SOCKET.RemoteIP], ebx
|
||||
jne .exit ; Quit if the source IP is not valid
|
||||
|
||||
udprx_002:
|
||||
; OK - we have a valid UDP packet for this socket.
|
||||
@@: ; OK - we have a valid UDP packet for this socket.
|
||||
; First, update the sockets remote port number with the incoming msg
|
||||
; - it will have changed
|
||||
; from the original ( 69 normally ) to allow further connects
|
||||
movzx ebx, word [edx + 20] ; get the UDP source port
|
||||
mov ax, [edx + 20 + UDP_PACKET.SourcePort] ; get the UDP source port
|
||||
; ( was 69, now new )
|
||||
mov [eax + sockets + 20], bx
|
||||
mov [ebx + SOCKET.RemotePort], ax
|
||||
|
||||
; Now, copy data to socket. We have socket address as [eax + sockets].
|
||||
; We have IP packet in edx
|
||||
|
||||
; get # of bytes in ecx
|
||||
movzx ecx, byte [edx + 3] ; total length of IP packet. Subtract
|
||||
mov ch, byte [edx + 2] ; 20 + 8 gives data length
|
||||
movzx ecx, [edx + IP_PACKET.TotalLength] ; total length of IP packet. Subtract
|
||||
xchg cl, ch ; 20 + 8 gives data length
|
||||
sub ecx, 28
|
||||
|
||||
mov ebx, eax
|
||||
add ebx, sockets ; ebx = address of actual socket
|
||||
mov eax, [ebx + SOCKET.rxDataCount] ; get # of bytes already in buffer
|
||||
add [ebx + SOCKET.rxDataCount], ecx ; increment the count of bytes in buffer
|
||||
|
||||
mov eax, [ebx+ 4] ; get socket owner PID
|
||||
push eax
|
||||
|
||||
mov eax, [ebx + 24] ; get # of bytes already in buffer
|
||||
add [ebx + 24], ecx ; increment the count of bytes in buffer
|
||||
|
||||
; point to the location to store the data
|
||||
add ebx, eax
|
||||
add ebx, SOCKETHEADERSIZE
|
||||
|
||||
; ebx = location for first byte, ecx has count,
|
||||
; edx points to data
|
||||
; ecx has count, edx points to data
|
||||
|
||||
add edx, 28 ; edx now points to the data
|
||||
mov edi, ebx
|
||||
lea edi, [ebx + eax + SOCKETHEADERSIZE]
|
||||
mov esi, edx
|
||||
|
||||
cld
|
||||
rep movsb ; copy the data across
|
||||
|
||||
; flag an event to the application
|
||||
pop eax
|
||||
mov ecx,1
|
||||
mov esi,TASK_DATA+TASKDATA.pid
|
||||
mov eax, [ebx + SOCKET.PID] ; get socket owner PID
|
||||
mov ecx, 1
|
||||
mov esi, TASK_DATA + TASKDATA.pid
|
||||
|
||||
newsearch:
|
||||
cmp [esi],eax
|
||||
je foundPID
|
||||
.next_pid:
|
||||
cmp [esi], eax
|
||||
je .found_pid
|
||||
inc ecx
|
||||
add esi,0x20
|
||||
cmp ecx,[TASK_COUNT]
|
||||
jbe newsearch
|
||||
add esi, 0x20
|
||||
cmp ecx, [TASK_COUNT]
|
||||
jbe .next_pid
|
||||
|
||||
foundPID:
|
||||
shl ecx,8
|
||||
or dword [ecx+SLOT_BASE+APPDATA.event_mask],dword 10000000b ; stack event
|
||||
jmp .exit
|
||||
|
||||
mov [check_idle_semaphore],200
|
||||
.found_pid:
|
||||
shl ecx, 8
|
||||
or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK ; stack event
|
||||
|
||||
udprx_001:
|
||||
mov [check_idle_semaphore], 200
|
||||
|
||||
.exit:
|
||||
pop eax
|
||||
call freeBuff ; Discard the packet
|
||||
ret
|
||||
endp
|
||||
|
Loading…
Reference in New Issue
Block a user