mirror of
https://github.com/dschmenk/VM02.git
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180 lines
6.6 KiB
Java
Executable File
180 lines
6.6 KiB
Java
Executable File
import apple2.*;
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public class TestArp extends Thread
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{
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private static final int PRTYPE_IP = 0x0800;
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private static final int PRTYPE_ARP = 0x0806;
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private static final int PRTYPE_RARP = 0x8035;
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private static final int ARP_HW_ETH = 1; // ethernet hardware type code
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private static final int ARP_REQUEST = 1;
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private static final int ARP_REPLY = 2;
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private static final int ARP_HEADER_SIZE = 8;
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private static final int ARP_HW_TYPE_OFS = 0; // LEN = 2
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private static final int ARP_PR_TYPE_OFS = 2; // LEN = 2
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private static final int ARP_HW_LEN_OFS = 4; // LEN = 1
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private static final int ARP_PR_LEN_OFS = 5; // LEN = 1
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private static final int ARP_OP_OFS = 6; // LEN = 2
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private static final int ARP_SEND_HW_ADDR_OFS = 8; // LEN = ?
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private static int ARP_SEND_PR_ADDR_OFS; // LEN = ?
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private static int ARP_TARG_HW_ADDR_OFS; // LEN = ?
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private static int ARP_TARG_PR_ADDR_OFS; // LEN = ?
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private static int ARP_PACKET_SIZE;
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private static byte[] ipLocal = {(byte)192,(byte)168,(byte)123,(byte)10};
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private static byte[] ipServer = {(byte)192,(byte)168,(byte)123,(byte)1};
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private static boolean done = false;
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public TestArp()
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{
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}
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public static void setDataField(byte[] packet, int offset, byte[] data)
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{
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for (int i = 0; i < data.length; i++)
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packet[offset + i] = data[i];
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}
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public static boolean keyPressed()
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{
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return ((vm02.call((5 << 19), 0x96) & 0xFF) > 0);
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}
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public void run()
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{
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byte[] arp = new byte[ARP_PACKET_SIZE];
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//
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// Fill in ARP packet
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//
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arp[ARP_HW_TYPE_OFS] = (byte)(ARP_HW_ETH >> 8);
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arp[ARP_HW_TYPE_OFS + 1] = (byte) ARP_HW_ETH;
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arp[ARP_PR_TYPE_OFS] = (byte)(PRTYPE_IP >> 8);
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arp[ARP_PR_TYPE_OFS + 1] = (byte) PRTYPE_IP;
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arp[ARP_HW_LEN_OFS] = (byte) Ethernet.localAddr().length;
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arp[ARP_PR_LEN_OFS] = (byte) ipLocal.length;
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arp[ARP_OP_OFS] = (byte)(ARP_REQUEST >> 8);
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arp[ARP_OP_OFS + 1] = (byte) ARP_REQUEST;
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setDataField(arp, ARP_SEND_HW_ADDR_OFS, Ethernet.localAddr());
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setDataField(arp, ARP_SEND_PR_ADDR_OFS, ipLocal);
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setDataField(arp, ARP_TARG_PR_ADDR_OFS, ipServer);
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while (!done)
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{
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System.out.println("Sending ARP ethernet header");
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System.out.print("Sending ARP for address:");
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System.out.print(ipServer[0] & 0xFF);
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System.out.print(".");
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System.out.print(ipServer[1] & 0xFF);
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System.out.print(".");
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System.out.print(ipServer[2] & 0xFF);
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System.out.print(".");
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System.out.println(ipServer[3] & 0xFF);
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if (!Ethernet.sendHeader(Ethernet.broadcastAddr(), PRTYPE_ARP, ARP_PACKET_SIZE))
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{
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System.out.println("Error sending header!");
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// System.exit(-1);
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}
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else
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{
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System.out.println("Sending ARP packet");
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Ethernet.sendData(arp);
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Ethernet.xferComplete();
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System.out.println("Waiting for reply packet...");
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}
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sleep(10000); // sleep for 10 seconds
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}
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}
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public static void main(String[] args)
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{
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int len;
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byte[] header;
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byte[] arp;
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System.out.print('.');
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if (!Ethernet.enable())
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{
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System.out.println("Unable to open ethernet device");
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System.exit(-1);
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}
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System.out.print('.');
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//
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// Calculate offsets for remaining fields
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//
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ARP_SEND_PR_ADDR_OFS = ARP_SEND_HW_ADDR_OFS + Ethernet.localAddr().length;
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ARP_TARG_HW_ADDR_OFS = ARP_SEND_PR_ADDR_OFS + ipLocal.length;
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ARP_TARG_PR_ADDR_OFS = ARP_TARG_HW_ADDR_OFS + Ethernet.localAddr().length;
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ARP_PACKET_SIZE = ARP_TARG_PR_ADDR_OFS + ipLocal.length;
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System.out.print('.');
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header = Ethernet.newHeader();
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System.out.print('.');
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arp = new byte[ARP_PACKET_SIZE];
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System.out.print('.');
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TestArp arpSend = new TestArp();
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System.out.print('.');
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Thread.currentThread().setPriority(6);
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System.out.print('.');
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arpSend.start(); // Start ARP send thread
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System.out.println('!');
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while (!keyPressed())
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{
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if ((len = Ethernet.recvHeader(header)) > 0)
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{
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System.out.print("Received packet of len:");
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System.out.println(len + header.length);
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if (Ethernet.getHeaderType(header) == PRTYPE_ARP)
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{
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if (len > ARP_PACKET_SIZE) len = ARP_PACKET_SIZE;
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Ethernet.recvData(arp, 0, len);
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System.out.print(" ARP packet type = 0x");
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System.out.println(Integer.toHexString(((arp[ARP_OP_OFS] & 0xFF) << 8) | (arp[ARP_OP_OFS + 1] & 0xFF)));
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System.out.print(" from:");
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System.out.print(arp[ARP_SEND_PR_ADDR_OFS] & 0xFF);
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System.out.print(".");
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System.out.print(arp[ARP_SEND_PR_ADDR_OFS+1] & 0xFF);
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System.out.print(".");
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System.out.print(arp[ARP_SEND_PR_ADDR_OFS+2] & 0xFF);
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System.out.print(".");
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System.out.println(arp[ARP_SEND_PR_ADDR_OFS+3] & 0xFF);
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System.out.print(" Hardware address:");
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System.out.print(Integer.toHexString(arp[ARP_SEND_HW_ADDR_OFS] & 0xFF));
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System.out.print(":");
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System.out.print(Integer.toHexString(arp[ARP_SEND_HW_ADDR_OFS+1] & 0xFF));
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System.out.print(":");
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System.out.print(Integer.toHexString(arp[ARP_SEND_HW_ADDR_OFS+2] & 0xFF));
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System.out.print(":");
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System.out.print(Integer.toHexString(arp[ARP_SEND_HW_ADDR_OFS+3] & 0xFF));
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System.out.print(":");
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System.out.print(Integer.toHexString(arp[ARP_SEND_HW_ADDR_OFS+4] & 0xFF));
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System.out.print(":");
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System.out.println(Integer.toHexString(arp[ARP_SEND_HW_ADDR_OFS+5] & 0xFF));
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System.out.print(" to:");
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System.out.print(arp[ARP_TARG_PR_ADDR_OFS] & 0xFF);
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System.out.print(".");
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System.out.print(arp[ARP_TARG_PR_ADDR_OFS+1] & 0xFF);
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System.out.print(".");
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System.out.print(arp[ARP_TARG_PR_ADDR_OFS+2] & 0xFF);
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System.out.print(".");
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System.out.println(arp[ARP_TARG_PR_ADDR_OFS+3] & 0xFF);
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System.out.print(" Hardware address:");
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System.out.print(Integer.toHexString(arp[ARP_TARG_HW_ADDR_OFS] & 0xFF));
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System.out.print(":");
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System.out.print(Integer.toHexString(arp[ARP_TARG_HW_ADDR_OFS+1] & 0xFF));
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System.out.print(":");
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System.out.print(Integer.toHexString(arp[ARP_TARG_HW_ADDR_OFS+2] & 0xFF));
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System.out.print(":");
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System.out.print(Integer.toHexString(arp[ARP_TARG_HW_ADDR_OFS+3] & 0xFF));
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System.out.print(":");
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System.out.print(Integer.toHexString(arp[ARP_TARG_HW_ADDR_OFS+4] & 0xFF));
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System.out.print(":");
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System.out.println(Integer.toHexString(arp[ARP_TARG_HW_ADDR_OFS+5] & 0xFF));
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}
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else
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{
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System.out.print(" Non-ARP packet type = 0x");
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System.out.println(Integer.toHexString(Ethernet.getHeaderType(header)));
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}
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}
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else
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System.out.println("Received bad packet");
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Ethernet.xferComplete();
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}
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System.out.println("Exiting...");
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done = true;
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sleep(10500);
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}
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}
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