Fail* directories reorganized, Code-cleanup (-> coding-style), Typos+comments fixed.
git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1321 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
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adrian
148
simulators/bochs/iodev/eth_null.cc
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148
simulators/bochs/iodev/eth_null.cc
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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_null.cc - skeleton code for an ethernet pktmover
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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
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#include "eth.h"
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#define LOG_THIS netdev->
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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_null_pktmover_c : public eth_pktmover_c {
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public:
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bx_null_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, const char *script);
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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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FILE *txlog, *txlog_txt, *rxlog, *rxlog_txt;
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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_null_locator_c : public eth_locator_c {
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public:
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bx_null_locator_c(void) : eth_locator_c("null") {}
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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_null_pktmover_c(netif, macaddr, rxh, dev, script));
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}
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} bx_null_match;
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//
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// Define the methods for the bx_null_pktmover derived class
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//
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// the constructor
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bx_null_pktmover_c::bx_null_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(("null network driver"));
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#if BX_ETH_NULL_LOGGING
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// Start the rx poll
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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_null"); // continuous, active
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this->rxh = rxh;
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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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txlog = fopen("ne2k-tx.log", "wb");
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if (!txlog) BX_PANIC(("open ne2k-tx.log failed"));
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txlog_txt = fopen("ne2k-txdump.txt", "wb");
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if (!txlog_txt) BX_PANIC(("open ne2k-txdump.txt failed"));
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fprintf(txlog_txt, "null packetmover readable log file\n");
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fprintf(txlog_txt, "net IF = %s\n", netif);
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fprintf(txlog_txt, "MAC address = ");
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for (int i=0; i<6; i++)
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fprintf(txlog_txt, "%02x%s", 0xff & macaddr[i], i<5?":" : "");
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fprintf(txlog_txt, "\n--\n");
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fflush(txlog_txt);
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#endif
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}
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void bx_null_pktmover_c::sendpkt(void *buf, unsigned io_len)
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{
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#if BX_ETH_NULL_LOGGING
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BX_DEBUG (("sendpkt length %u", io_len));
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// dump raw bytes to a file, eventually dump in pcap format so that
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// tcpdump -r FILE can interpret them for us.
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size_t n = fwrite (buf, io_len, 1, txlog);
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if (n != 1) BX_ERROR(("fwrite to txlog failed, io_len = %u", io_len));
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// dump packet in hex into an ascii log file
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write_pktlog_txt(txlog_txt, (const Bit8u *)buf, io_len, 0);
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// flush log so that we see the packets as they arrive w/o buffering
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fflush(txlog);
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#endif
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}
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void bx_null_pktmover_c::rx_timer_handler (void *this_ptr)
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{
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#if BX_ETH_NULL_LOGGING
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/// hey wait there is no receive data with a NULL ethernet, is there....
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int io_len = 0;
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Bit8u buf[1];
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bx_null_pktmover_c *class_ptr = (bx_null_pktmover_c *) this_ptr;
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bx_devmodel_c *netdev = class_ptr->netdev;
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if (io_len > 0) {
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BX_DEBUG(("receive packet length %u", io_len));
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// dump raw bytes to a file, eventually dump in pcap format so that
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// tcpdump -r FILE can interpret them for us.
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size_t n = fwrite (buf, io_len, 1, class_ptr->rxlog);
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if (n != 1) BX_ERROR(("fwrite to rxlog failed, io_len = %u", io_len));
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// dump packet in hex into an ascii log file
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write_pktlog_txt(class_ptr->rxlog_txt, buf, io_len, 1);
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// flush log so that we see the packets as they arrive w/o buffering
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fflush(class_ptr->rxlog);
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}
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#endif
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}
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#endif /* if BX_NETWORKING */
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