- removed 'arpback' networking module (ARP simulation still exists in the 'vnet' module)
This commit is contained in:
Volker Ruppert
parent
988b6e4ac5
commit
20ae4af54c
@ -782,7 +782,6 @@ private_colormap: enabled=0
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# If you don't want to make connections to any physical networks,
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# you can use the following 'ethmod's to simulate a virtual network.
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# null: All packets are discarded, but logged to a few files.
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# arpback: ARP is simulated. Disabled by default.
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# vde: Virtual Distributed Ethernet
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# vnet: ARP, ICMP-echo(ping), DHCP and read/write TFTP are simulated.
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# The virtual host uses 192.168.10.1.
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@ -1427,9 +1427,6 @@ void bx_init_options()
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#if BX_NETMOD_FBSD
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"fbsd",
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#endif
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#if BX_NETMOD_ARPBACK
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"arpback",
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#endif
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#if BX_NETMOD_VDE
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"vde",
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#endif
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@ -806,7 +806,6 @@ typedef
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// which networking modules will be enabled
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// determined by configure script
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#define BX_NETMOD_ARPBACK 0
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#define BX_NETMOD_FBSD 0
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#define BX_NETMOD_LINUX 0
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#define BX_NETMOD_WIN32 0
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@ -4197,14 +4197,6 @@ version where this module was added.
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</row>
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</thead>
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<tbody>
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<row>
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<entry>arpback</entry>
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<entry>ARP simulator - disabled by default.
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</entry>
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<entry>No</entry>
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<entry>No</entry>
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<entry>1.3</entry>
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</row>
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<row>
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<entry>fbsd</entry>
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<entry>FreeBSD / OpenBSD packetmover.
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@ -1,5 +1,5 @@
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.\"Document Author: Timothy R. Butler - tbutler@uninetsolutions.com"
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.TH bochsrc 5 "13 Mar 2011" "bochsrc" "The Bochs Project"
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.TH bochsrc 5 "10 Jul 2011" "bochsrc" "The Bochs Project"
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.\"SKIP_SECTION"
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.SH NAME
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bochsrc \- Configuration file for Bochs.
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@ -881,7 +881,6 @@ to access physical ethernet interface. Current implemented values include
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If you don't want to make connections to any physical networks,
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you can use the following 'ethmod's to simulate a virtual network.
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- null : All packets are discarded, but logged to a few files
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- arpback: ARP is simulated (disabled by default)
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- vde : Virtual Distributed Ethernet
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- vnet : ARP, ICMP-echo(ping), DHCP and TFTP are simulated
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The virtual host uses 192.168.10.1
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@ -254,7 +254,6 @@ cmos.o: cmos.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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../pc_system.h ../plugin.h ../extplugin.h ../ltdl.h ../gui/gui.h \
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../instrument/stubs/instrument.h ../param_names.h cmos.h
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crc32.o: crc32.@CPP_SUFFIX@ crc32.h ../config.h
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devices.o: devices.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../bx_debug/debug.h ../config.h ../osdep.h ../bxversion.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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@ -272,11 +271,6 @@ es1370.o: es1370.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../pc_system.h ../plugin.h ../extplugin.h ../ltdl.h ../gui/gui.h \
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../instrument/stubs/instrument.h ../param_names.h pci.h es1370.h \
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soundmod.h soundlnx.h soundwin.h soundosx.h
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eth_arpback.o: eth_arpback.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../bx_debug/debug.h ../config.h ../osdep.h ../bxversion.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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../pc_system.h ../plugin.h ../extplugin.h ../ltdl.h ../gui/gui.h \
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../instrument/stubs/instrument.h ../param_names.h
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eth.o: eth.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../bx_debug/debug.h ../config.h ../osdep.h ../bxversion.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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@ -297,11 +291,6 @@ eth_null.o: eth_null.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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../pc_system.h ../plugin.h ../extplugin.h ../ltdl.h ../gui/gui.h \
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../instrument/stubs/instrument.h ../param_names.h eth.h
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eth_packetmaker.o: eth_packetmaker.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h \
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../osdep.h ../bx_debug/debug.h ../config.h ../osdep.h ../bxversion.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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../pc_system.h ../plugin.h ../extplugin.h ../ltdl.h ../gui/gui.h \
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../instrument/stubs/instrument.h ../param_names.h
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eth_slirp.o: eth_slirp.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../bx_debug/debug.h ../config.h ../osdep.h ../bxversion.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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@ -608,7 +597,6 @@ cmos.lo: cmos.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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../pc_system.h ../plugin.h ../extplugin.h ../ltdl.h ../gui/gui.h \
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../instrument/stubs/instrument.h ../param_names.h cmos.h
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crc32.lo: crc32.@CPP_SUFFIX@ crc32.h ../config.h
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devices.lo: devices.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../bx_debug/debug.h ../config.h ../osdep.h ../bxversion.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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@ -626,11 +614,6 @@ es1370.lo: es1370.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../pc_system.h ../plugin.h ../extplugin.h ../ltdl.h ../gui/gui.h \
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../instrument/stubs/instrument.h ../param_names.h pci.h es1370.h \
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soundmod.h soundlnx.h soundwin.h soundosx.h
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eth_arpback.lo: eth_arpback.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../bx_debug/debug.h ../config.h ../osdep.h ../bxversion.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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../pc_system.h ../plugin.h ../extplugin.h ../ltdl.h ../gui/gui.h \
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../instrument/stubs/instrument.h ../param_names.h
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eth.lo: eth.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../bx_debug/debug.h ../config.h ../osdep.h ../bxversion.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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@ -651,11 +634,6 @@ eth_null.lo: eth_null.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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../pc_system.h ../plugin.h ../extplugin.h ../ltdl.h ../gui/gui.h \
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../instrument/stubs/instrument.h ../param_names.h eth.h
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eth_packetmaker.lo: eth_packetmaker.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h \
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../osdep.h ../bx_debug/debug.h ../config.h ../osdep.h ../bxversion.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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../pc_system.h ../plugin.h ../extplugin.h ../ltdl.h ../gui/gui.h \
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../instrument/stubs/instrument.h ../param_names.h
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eth_slirp.lo: eth_slirp.@CPP_SUFFIX@ iodev.h ../bochs.h ../config.h ../osdep.h \
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../bx_debug/debug.h ../config.h ../osdep.h ../bxversion.h \
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../gui/siminterface.h ../gui/paramtree.h ../memory/memory.h \
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@ -1,52 +0,0 @@
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/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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/* CRC-32 calculator
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* Adapted from http://www.createwindow.org/programming/crc32/
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*/
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#include "crc32.h"
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CRC_Generator::CRC_Generator() {
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init();
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}
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void CRC_Generator::init(void)
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{
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Bit32u POLYNOMIAL = 0x04c11db7;
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int i;
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for(i = 0; i<0xFF; i++) {
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int j;
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crc32_table[i]=reflect(i,8) << 24;
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for(j=0; j<8; j++)
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crc32_table[i] = (crc32_table[i]<<1)^(crc32_table[i] & (1<<31) ? POLYNOMIAL : 0);
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crc32_table[i] = reflect(crc32_table[i], 32);
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}
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}
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Bit32u CRC_Generator::reflect(Bit32u ref, Bit8u ch)
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{
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Bit32u value(0);
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int i;
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for(i=1; i<(ch+1); i++) {
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if(ref & 1)
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value |= 1 << (ch-i);
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ref >>= 1;
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}
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return value;
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}
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Bit32u CRC_Generator::get_CRC(Bit8u * buf, Bit32u buflen)
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{
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Bit32u ulCRC(0xFFFFFFFF);
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Bit32u len(buflen);
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Bit8u * buffer=(Bit8u *) buf;
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while(len--)
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ulCRC=(ulCRC>>8)^crc32_table[(ulCRC & 0xFF)^*buffer++];
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return ulCRC ^ 0xFFFFFFFF;
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}
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@ -1,25 +0,0 @@
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/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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/* CRC-32 calculator
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* Adapted from http://www.createwindow.org/programming/crc32/
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*/
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#ifndef _CRC_32_H_
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#define _CRC_32_H_
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#include "config.h"
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class CRC_Generator {
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private:
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Bit32u crc32_table[256];
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Bit32u reflect(Bit32u ref, Bit8u ch);
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public:
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void init(void);
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CRC_Generator();
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Bit32u get_CRC(Bit8u * buf, Bit32u buflen);
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};
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#endif //_CRC_32_H_
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@ -63,7 +63,6 @@ Attached devices
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| | +-- Host specific Modules eth_fbsd.cc, eth_linux.cc, eth_win32.cc
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| |
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| +---- Dummy module eth_null.cc
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| +---- ARP simulator eth_arpback.cc, eth_packetmaker.cc, crc32.cc
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| +---- TAP Interface eth_tap.cc
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| +---- TUN/TAP Interface eth_tuntap.cc
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| +---- VDE Interface eth_vde.cc
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@ -69,9 +69,6 @@ extern class bx_tuntap_locator_c bx_tuntap_match;
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#if BX_NETMOD_VDE
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extern class bx_vde_locator_c bx_vde_match;
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#endif
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#if BX_NETMOD_ARPBACK
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extern class bx_arpback_locator_c bx_arpback_match;
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#endif
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#if BX_NETMOD_SLIRP
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extern class bx_slirp_locator_c bx_slirp_match;
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#endif
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@ -98,12 +95,6 @@ eth_locator_c::create(const char *type, const char *netif,
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if (!strcmp(type, "null")) {
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ptr = (eth_locator_c *) &bx_null_match;
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}
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#if BX_NETMOD_ARPBACK
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{
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if (!strcmp(type, "arpback"))
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ptr = (eth_locator_c *) &bx_arpback_match;
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}
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#endif
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#if BX_NETMOD_FBSD
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{
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if (!strcmp(type, "fbsd"))
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@ -1,190 +0,0 @@
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/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2001-2011 The Bochs Project
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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//
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// eth_arpback.cc - basic ethernet packetmover, only responds to ARP
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// Various networking docs:
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// http://www.graphcomp.com/info/rfc/
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// rfc0826: arp
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// rfc0903: rarp
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// Define BX_PLUGGABLE in files that can be compiled into plugins. For
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// platforms that require a special tag on exported symbols, BX_PLUGGABLE
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// is used to know when we are exporting symbols and when we are importing.
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#define BX_PLUGGABLE
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#include "iodev.h"
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#if BX_NETWORKING && BX_NETMOD_ARPBACK
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#include "eth.h"
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#include "crc32.h"
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#include "eth_packetmaker.h"
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#define LOG_THIS netdev->
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#define BX_ETH_ARPBACK_LOGGING 1
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//static const Bit8u external_mac[]={0xB0, 0xC4, 0x20, 0x20, 0x00, 0x00, 0x00};
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//static const Bit8u internal_mac[]={0xB0, 0xC4, 0x20, 0x00, 0x00, 0x00, 0x00};
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//static const Bit8u external_ip[]={ 192, 168, 0, 2, 0x00 };
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//static const Bit8u ethtype_arp[]={0x08, 0x06, 0x00};
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//
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// Define the class. This is private to this module
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//
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class bx_arpback_pktmover_c : public eth_pktmover_c {
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public:
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bx_arpback_pktmover_c(const char *netif, const char *macaddr,
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eth_rx_handler_t rxh,
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bx_devmodel_c *dev);
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void sendpkt(void *buf, unsigned io_len);
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private:
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int rx_timer_index;
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static void rx_timer_handler(void *);
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void rx_timer(void);
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FILE *pktlog, *pktlog_txt;
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//Bit8u arpbuf[MAX_FRAME_SIZE];
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//Bit32u buflen;
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//bx_bool bufvalid;
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//CRC_Generator mycrc;
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eth_ETHmaker packetmaker;
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};
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//
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// Define the static class that registers the derived pktmover class,
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// and allocates one on request.
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//
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class bx_arpback_locator_c : public eth_locator_c {
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public:
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bx_arpback_locator_c(void) : eth_locator_c("arpback") {}
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protected:
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eth_pktmover_c *allocate(const char *netif, const char *macaddr,
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eth_rx_handler_t rxh,
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bx_devmodel_c *dev, const char *script) {
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return (new bx_arpback_pktmover_c(netif, macaddr, rxh, dev, script));
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}
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} bx_arpback_match;
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//
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// Define the methods for the bx_arpback_pktmover derived class
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//
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// the constructor
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bx_arpback_pktmover_c::bx_arpback_pktmover_c(const char *netif,
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const char *macaddr,
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eth_rx_handler_t rxh,
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bx_devmodel_c *dev,
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const char *script)
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{
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this->netdev = dev;
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BX_INFO(("arpback network driver"));
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this->rx_timer_index =
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bx_pc_system.register_timer(this, this->rx_timer_handler, 1000,
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1, 1, "eth_arpback"); // continuous, active
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this->rxh = rxh;
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//bufvalid=0;
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packetmaker.init();
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#if BX_ETH_ARPBACK_LOGGING
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// Start the rx poll
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// eventually Bryce wants txlog to dump in pcap format so that
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// tcpdump -r FILE can read it and interpret packets.
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pktlog = fopen("ne2k-pkt.log", "wb");
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if (!pktlog) BX_PANIC(("open ne2k-pkt.log failed"));
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pktlog_txt = fopen("ne2k-pktlog.txt", "wb");
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if (!pktlog_txt) BX_PANIC(("open ne2k-pktlog.txt failed"));
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fprintf(pktlog_txt, "arpback packetmover readable log file\n");
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fprintf(pktlog_txt, "net IF = %s\n", netif);
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fprintf(pktlog_txt, "MAC address = ");
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for (int i=0; i<6; i++)
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fprintf(pktlog_txt, "%02x%s", 0xff & macaddr[i], i<5?":" : "");
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fprintf(pktlog_txt, "\n--\n");
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fflush(pktlog_txt);
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#endif
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}
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void
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bx_arpback_pktmover_c::sendpkt(void *buf, unsigned io_len)
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{
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if(io_len<BX_PACKET_BUFSIZE) {
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eth_packet barney;
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memcpy(barney.buf,buf,io_len);
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barney.len=io_len;
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if(packetmaker.ishandler(barney)) {
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packetmaker.sendpacket(barney);
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}
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/*
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if(( (!memcmp(buf, external_mac, 6)) || (!memcmp(buf, broadcast_macaddr, 6)) )
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&& (!memcmp(((Bit8u *)buf)+12, ethtype_arp, 2)) ) {
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Bit32u tempcrc;
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memcpy(arpbuf,buf,io_len); //move to temporary buffer
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memcpy(arpbuf, arpbuf+6, 6); //set destination to sender
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memcpy(arpbuf+6, external_mac, 6); //set sender to us
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memcpy(arpbuf+32, arpbuf+22, 10); //move destination to sender
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memcpy(arpbuf+22, external_mac, 6); //set sender to us
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memcpy(arpbuf+28, external_ip, 4); //set sender to us
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||||
arpbuf[21]=2; //make this a reply and not a request
|
||||
tempcrc=mycrc.get_CRC(arpbuf,io_len);
|
||||
memcpy(arpbuf+io_len, &tempcrc, 4);
|
||||
buflen=io_len;//+4
|
||||
bufvalid=1;
|
||||
}
|
||||
*/
|
||||
}
|
||||
#if BX_ETH_ARPBACK_LOGGING
|
||||
BX_DEBUG(("sendpkt length %u", io_len));
|
||||
// dump raw bytes to a file, eventually dump in pcap format so that
|
||||
// tcpdump -r FILE can interpret them for us.
|
||||
int n = fwrite (buf, io_len, 1, pktlog);
|
||||
if (n != 1) BX_ERROR (("fwrite to pktlog failed, length %u", io_len));
|
||||
// dump packet in hex into an ascii log file
|
||||
write_pktlog_txt(pktlog_txt, (const Bit8u *)buf, io_len, 0);
|
||||
// flush log so that we see the packets as they arrive w/o buffering
|
||||
fflush(pktlog);
|
||||
#endif
|
||||
}
|
||||
|
||||
void bx_arpback_pktmover_c::rx_timer_handler (void * this_ptr)
|
||||
{
|
||||
#if BX_ETH_ARPBACK_LOGGING
|
||||
BX_DEBUG(("rx_timer_handler"));
|
||||
#endif
|
||||
bx_arpback_pktmover_c *class_ptr = ((bx_arpback_pktmover_c *)this_ptr);
|
||||
|
||||
class_ptr->rx_timer();
|
||||
}
|
||||
|
||||
void bx_arpback_pktmover_c::rx_timer (void)
|
||||
{
|
||||
eth_packet rubble;
|
||||
|
||||
if (packetmaker.getpacket(rubble)) {
|
||||
#if BX_ETH_ARPBACK_LOGGING
|
||||
write_pktlog_txt(pktlog_txt, rubble.buf, rubble.len, 1);
|
||||
#endif
|
||||
(*rxh)(this->netdev, rubble.buf, rubble.len);
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* if BX_NETWORKING && BX_NETMOD_ARPBACK */
|
||||
@ -1,202 +0,0 @@
|
||||
/////////////////////////////////////////////////////////////////////////
|
||||
// $Id$
|
||||
/////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Copyright (C) 2000-2011 The Bochs Project
|
||||
//
|
||||
// This library is free software; you can redistribute it and/or
|
||||
// modify it under the terms of the GNU Lesser General Public
|
||||
// License as published by the Free Software Foundation; either
|
||||
// version 2 of the License, or (at your option) any later version.
|
||||
//
|
||||
// This library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
// Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public
|
||||
// License along with this library; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
// Define BX_PLUGGABLE in files that can be compiled into plugins. For
|
||||
// platforms that require a special tag on exported symbols, BX_PLUGGABLE
|
||||
// is used to know when we are exporting symbols and when we are importing.
|
||||
#define BX_PLUGGABLE
|
||||
|
||||
#include "iodev.h"
|
||||
|
||||
#if BX_NETWORKING && BX_NETMOD_ARPBACK
|
||||
|
||||
#include "eth_packetmaker.h"
|
||||
|
||||
bx_bool sendable(const eth_packet& outpacket) {
|
||||
//FINISH ME!
|
||||
return 0;
|
||||
}
|
||||
|
||||
Bit32u eth_IPmaker::datalen(const eth_packet& outpacket)
|
||||
{
|
||||
Bit32u out;
|
||||
out=((outpacket.buf[16]<<8)+outpacket.buf[17])-(4*(0xF & outpacket.buf[14]));
|
||||
return out;
|
||||
}
|
||||
|
||||
const Bit8u *eth_IPmaker::datagram(const eth_packet& outpacket)
|
||||
{
|
||||
const Bit8u *out;
|
||||
out=outpacket.buf+14+(4*(0xF & outpacket.buf[14]));
|
||||
return out;
|
||||
}
|
||||
|
||||
Bit32u eth_IPmaker::build_packet_header(Bit32u source, Bit32u dest, Bit8u protocol, Bit32u datalen)
|
||||
{
|
||||
Bit32u temp;
|
||||
Bit32u i;
|
||||
memcpy(pending.buf,internal_mac,6);
|
||||
memcpy(pending.buf+6,external_mac,6);
|
||||
memcpy(pending.buf+12,ethtype_ip,2);
|
||||
pending.buf[14]=0x45;
|
||||
pending.buf[15]=0;
|
||||
temp=datalen+20;
|
||||
pending.buf[16]=(temp>>8) & 0xFF;
|
||||
pending.buf[17]=temp & 0xFF;
|
||||
pending.buf[18]=0;
|
||||
pending.buf[19]=0;
|
||||
pending.buf[20]=0;
|
||||
pending.buf[21]=0;
|
||||
pending.buf[22]=30;
|
||||
pending.buf[23]=protocol;
|
||||
pending.buf[24]=0;
|
||||
pending.buf[25]=0;
|
||||
pending.buf[26]=(source>>24) & 0xFF;
|
||||
pending.buf[27]=(source>>16) & 0xFF;
|
||||
pending.buf[28]=(source>>8) & 0xFF;
|
||||
pending.buf[29]=(source) & 0xFF;
|
||||
pending.buf[30]=(dest>>24) & 0xFF;
|
||||
pending.buf[31]=(dest>>16) & 0xFF;
|
||||
pending.buf[32]=(dest>>8) & 0xFF;
|
||||
pending.buf[33]=(dest) & 0xFF;
|
||||
//Compute Checksum
|
||||
temp=0;
|
||||
for(i=14;i<34;i=i+2) {
|
||||
Bit32u addee=pending.buf[i];
|
||||
addee=(addee<<8) & pending.buf[i+1];
|
||||
temp=temp+addee;
|
||||
}
|
||||
temp=(temp>>16)+(temp&0xFFFF);
|
||||
temp=(temp>>16)+(temp&0xFFFF);
|
||||
pending.buf[24]=~(Bit8u)((temp>>8) & 0xFF);
|
||||
pending.buf[25]=~(Bit8u)(temp & 0xFF);
|
||||
return(34);
|
||||
}
|
||||
|
||||
Bit8u eth_IPmaker::protocol(const eth_packet& outpacket)
|
||||
{
|
||||
return (*(outpacket.buf+23) & 0xff);
|
||||
}
|
||||
|
||||
Bit32u eth_IPmaker::source(const eth_packet& outpacket)
|
||||
{
|
||||
Bit32u out=0xFF & *(outpacket.buf+26);
|
||||
out=(out<<8) | (0xFF & *(outpacket.buf+27));
|
||||
out=(out<<8) | (0xFF & *(outpacket.buf+28));
|
||||
out=(out<<8) | (0xFF & *(outpacket.buf+29));
|
||||
return out;
|
||||
}
|
||||
|
||||
Bit32u eth_IPmaker::destination(const eth_packet& outpacket)
|
||||
{
|
||||
Bit32u out=0xFF & *(outpacket.buf+30);
|
||||
out=(out<<8) | (0xFF & *(outpacket.buf+31));
|
||||
out=(out<<8) | (0xFF & *(outpacket.buf+32));
|
||||
out=(out<<8) | (0xFF & *(outpacket.buf+33));
|
||||
return out;
|
||||
}
|
||||
|
||||
void eth_IPmaker::init(void)
|
||||
{
|
||||
is_pending=0;
|
||||
}
|
||||
|
||||
void eth_ETHmaker::init(void)
|
||||
{
|
||||
arper.init();
|
||||
}
|
||||
|
||||
bx_bool eth_ETHmaker::getpacket(eth_packet& inpacket)
|
||||
{
|
||||
return arper.getpacket(inpacket);
|
||||
}
|
||||
|
||||
bx_bool eth_ETHmaker::ishandler(const eth_packet& outpacket)
|
||||
{
|
||||
if((outpacket.len>=60) &&
|
||||
( (!memcmp(outpacket.buf, external_mac, 6))
|
||||
|| (!memcmp(outpacket.buf, broadcast_macaddr, 6))) &&
|
||||
( (!memcmp(outpacket.buf+12, ethtype_arp, 2)) ||
|
||||
(!memcmp(outpacket.buf+12, ethtype_ip, 2))) &&
|
||||
(outpacket.len<PACKET_BUF_SIZE)
|
||||
) {
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
bx_bool eth_ETHmaker::sendpacket(const eth_packet& outpacket)
|
||||
{
|
||||
return arper.sendpacket(outpacket);
|
||||
}
|
||||
|
||||
void eth_ARPmaker::init(void)
|
||||
{
|
||||
is_pending=0;
|
||||
pending.len=0;
|
||||
}
|
||||
|
||||
bx_bool eth_ARPmaker::getpacket(eth_packet& inpacket)
|
||||
{
|
||||
if(is_pending) {
|
||||
memcpy(inpacket.buf,pending.buf,pending.len);
|
||||
inpacket.len=pending.len;
|
||||
is_pending=0;
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
bx_bool eth_ARPmaker::ishandler(const eth_packet& outpacket)
|
||||
{
|
||||
if((outpacket.len>=60) &&
|
||||
(!memcmp(outpacket.buf+12, ethtype_arp, 2)) &&
|
||||
(outpacket.len<PACKET_BUF_SIZE) &&
|
||||
( (!memcmp(outpacket.buf, external_mac, 6))
|
||||
|| (!memcmp(outpacket.buf, broadcast_macaddr, 6)) ) &&
|
||||
(!memcmp(outpacket.buf+38, external_ip, 4))
|
||||
) {
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
bx_bool eth_ARPmaker::sendpacket(const eth_packet& outpacket)
|
||||
{
|
||||
if(is_pending || !ishandler(outpacket)) {
|
||||
return 0;
|
||||
} else {
|
||||
//Bit32u tempcrc;
|
||||
memcpy(pending.buf,outpacket.buf,outpacket.len); //move to temporary buffer
|
||||
memcpy(pending.buf, pending.buf+6, 6); //set destination to sender
|
||||
memcpy(pending.buf+6, external_mac, 6); //set sender to us
|
||||
memcpy(pending.buf+32, pending.buf+22, 10); //move destination to sender
|
||||
memcpy(pending.buf+22, external_mac, 6); //set sender to us
|
||||
memcpy(pending.buf+28, external_ip, 4); //set sender to us
|
||||
pending.buf[21]=2; //make this a reply and not a request
|
||||
//tempcrc=mycrc.get_CRC(pending.buf,len);
|
||||
//memcpy(pending.buf+len, &tempcrc, 4);
|
||||
pending.len=outpacket.len; //+4
|
||||
is_pending=1;
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* if BX_NETWORKING && BX_NETMOD_ARPBACK */
|
||||
@ -1,145 +0,0 @@
|
||||
/////////////////////////////////////////////////////////////////////////
|
||||
// $Id$
|
||||
/////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Copyright (C) 2000-2009 The Bochs Project
|
||||
//
|
||||
// This library is free software; you can redistribute it and/or
|
||||
// modify it under the terms of the GNU Lesser General Public
|
||||
// License as published by the Free Software Foundation; either
|
||||
// version 2 of the License, or (at your option) any later version.
|
||||
//
|
||||
// This library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
// Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public
|
||||
// License along with this library; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
#ifndef _ETH_PACKETMAKER_H_
|
||||
#define _ETH_PACKETMAKER_H_
|
||||
|
||||
#if BX_NETMOD_ARPBACK
|
||||
|
||||
static const Bit8u internal_mac[]={0xB0, 0xC4, 0x20, 0x20, 0x00, 0x00, 0x00};
|
||||
static const Bit8u external_mac[]={0xB0, 0xC4, 0x20, 0x20, 0x00, 0x00, 0x00};
|
||||
static const Bit8u external_ip[]={ 192, 168, 0, 2, 0x00 };
|
||||
static const Bit8u ethtype_arp[]={0x08, 0x06, 0x00};
|
||||
static const Bit8u ethtype_ip[]={0x08, 0x00, 0x00};
|
||||
static const Bit8u prot_udp=17;
|
||||
static const Bit8u prot_tcp=6;
|
||||
|
||||
|
||||
class eth_packet {
|
||||
public:
|
||||
Bit8u buf[BX_PACKET_BUFSIZE];
|
||||
Bit32u len;
|
||||
};
|
||||
|
||||
|
||||
class eth_packetmaker {
|
||||
public:
|
||||
virtual bx_bool getpacket(eth_packet& inpacket) = 0;
|
||||
virtual bx_bool ishandler(const eth_packet& outpacket) = 0;
|
||||
virtual bx_bool sendpacket(const eth_packet& outpacket) = 0;
|
||||
};
|
||||
|
||||
|
||||
class eth_ARPmaker : public eth_packetmaker {
|
||||
public:
|
||||
void init(void);
|
||||
bx_bool ishandler(const eth_packet& outpacket);
|
||||
bx_bool sendpacket(const eth_packet& outpacket);
|
||||
bx_bool getpacket(eth_packet& inpacket);
|
||||
private:
|
||||
eth_packet pending;
|
||||
bx_bool is_pending;
|
||||
};
|
||||
|
||||
|
||||
class eth_IPmaker : eth_packetmaker {
|
||||
public:
|
||||
void init(void);
|
||||
virtual bx_bool ishandler(const eth_packet& outpacket)=0;
|
||||
virtual bx_bool sendpacket(const eth_packet& outpacket)=0;
|
||||
virtual bx_bool getpacket(eth_packet& inpacket)=0;
|
||||
|
||||
protected:
|
||||
bx_bool sendable(const eth_packet& outpacket);
|
||||
|
||||
Bit32u source(const eth_packet& outpacket);
|
||||
Bit32u destination(const eth_packet& outpacket);
|
||||
Bit8u protocol(const eth_packet& outpacket);
|
||||
|
||||
const Bit8u * datagram(const eth_packet& outpacket);
|
||||
Bit32u datalen(const eth_packet& outpacket);
|
||||
|
||||
//Build a header in pending, return header length in bytes.
|
||||
Bit32u build_packet_header(Bit32u source, Bit32u dest, Bit8u protocol, Bit32u datalen);
|
||||
|
||||
eth_packet pending;
|
||||
bx_bool is_pending;
|
||||
|
||||
//Bit8u Version; //=4 (4 bits)
|
||||
//It better be!
|
||||
|
||||
//Bit8u IHL; //Header length in 32-bit bytes (4 bits)
|
||||
//Used to strip layer
|
||||
|
||||
//Bit8u Type_of_Service; //not relevent, set to 0;
|
||||
//Ignore on receive, set to 0 on send.
|
||||
|
||||
//Bit16u Total_Length;//length of the datagram in octets. use 576 or less;
|
||||
//Use 576 or less on send.
|
||||
//Use to get length on receive
|
||||
|
||||
//Bit16u Identification;//Identifier for assembling fragments
|
||||
//Ignore, we'll drop fragments
|
||||
|
||||
//Bit8u Flags;//0,Don't fragment, More Fragments (vs last fragment)
|
||||
//Set to 0 on send
|
||||
//Drop if more fragments set.
|
||||
|
||||
//Bit16u Fragment Offset;//where in the datagram this fragment belongs
|
||||
//Should be 0 for send and receive.
|
||||
|
||||
//Bit8u TTL;//Set to something sorta big.
|
||||
//Shouldn't be 0 on receive
|
||||
//Set to something big on send
|
||||
|
||||
//Bit8u Protocol;
|
||||
//Defines Protocol.
|
||||
//TCP=?, UDP=?
|
||||
|
||||
//Bit16u Header_Checksum;//16-bit one's complement of the one's complement
|
||||
//sum of all 16-bit words in header;
|
||||
//Could check on receive, must set on send.
|
||||
|
||||
//Bit32u Source;//source address
|
||||
//Bit32u Destination;//destination address
|
||||
};
|
||||
|
||||
/*
|
||||
class eth_TCPmaker : eth_packetmaker {
|
||||
};
|
||||
|
||||
class eth_UDPmaker : eth_packetmaker {
|
||||
};
|
||||
*/
|
||||
|
||||
class eth_ETHmaker : public eth_packetmaker {
|
||||
public:
|
||||
//handles all packets to a MAC addr.
|
||||
void init(void);
|
||||
virtual bx_bool getpacket(eth_packet& inpacket);
|
||||
virtual bx_bool ishandler(const eth_packet& outpacket);
|
||||
virtual bx_bool sendpacket(const eth_packet& outpacket);
|
||||
private:
|
||||
eth_ARPmaker arper;
|
||||
};
|
||||
|
||||
|
||||
#endif // BX_NETMOD_ARPBACK
|
||||
#endif // _ETH_PACKETMAKER_H_
|
||||
Loading…
Reference in New Issue
Block a user