Examples with DhcpPacket android.net.dhcp.DhcpPacket used on opensource projects

Example 66 with DhcpPacket

use of android.net.dhcp.DhcpPacket in project android_frameworks_base by crdroidandroid.

the class DhcpPacketTest method testPadAndOverloadedOptionsOffer.

@SmallTest
public void testPadAndOverloadedOptionsOffer() throws Exception {
    // A packet observed in the real world that is interesting for two reasons:
    //
    // 1. It uses pad bytes, which we previously didn't support correctly.
    // 2. It uses DHCP option overloading, which we don't currently support (but it doesn't
    //    store any information in the overloaded fields).
    //
    // For now, we just check that it parses correctly.
    final ByteBuffer packet = ByteBuffer.wrap(HexDump.hexStringToByteArray(// Ethernet header.
    "b4cef6000000e80462236e300800" + // IP header.
    "4500014c00000000ff11741701010101ac119876" + // UDP header. TODO: fix invalid checksum (due to MAC address obfuscation).
    "004300440138ae5a" + // BOOTP header.
    "020106000fa0059f0000000000000000ac1198760000000000000000" + // MAC address.
    "b4cef600000000000000000000000000" + // Server name.
    "ff00000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + // File.
    "ff00000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + // Options
    "638253633501023604010101010104ffff000033040000a8c03401030304ac1101010604ac110101" + "0000000000000000000000000000000000000000000000ff000000"));
    DhcpPacket offerPacket = DhcpPacket.decodeFullPacket(packet, ENCAP_L2);
    assertTrue(offerPacket instanceof DhcpOfferPacket);
    DhcpResults dhcpResults = offerPacket.toDhcpResults();
    assertDhcpResults("172.17.152.118/16", "172.17.1.1", "172.17.1.1", null, "1.1.1.1", null, 43200, false, 0, dhcpResults);
}

Example 67 with DhcpPacket

use of android.net.dhcp.DhcpPacket in project android_frameworks_base by crdroidandroid.

the class DhcpPacketTest method testOfferWithBadCookie.

@SmallTest
public void testOfferWithBadCookie() throws Exception {
    final byte[] packet = HexDump.hexStringToByteArray(// IP header.
    "450001518d0600004011144dc0a82b01c0a82bf7" + // UDP header.
    "00430044013d9ac7" + // BOOTP header.
    "02010600dfc23d1f0002000000000000c0a82bf7c0a82b0100000000" + // MAC address.
    "30766ff2a90c00000000000000000000" + // Server name.
    "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + // File.
    "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + // Bad cookie
    "DEADBEEF3501023604c0a82b01330400000e103a04000007083b0400000c4e0104ffffff00" + "1c04c0a82bff0304c0a82b010604c0a82b012b0f414e44524f49445f4d455445524544ff");
    try {
        DhcpPacket offerPacket = DhcpPacket.decodeFullPacket(packet, packet.length, ENCAP_L3);
    } catch (DhcpPacket.ParseException expected) {
        assertDhcpErrorCodes(DhcpErrorEvent.DHCP_BAD_MAGIC_COOKIE, expected.errorCode);
        return;
    }
    fail("Dhcp packet parsing should have failed");
}

Example 68 with DhcpPacket

use of android.net.dhcp.DhcpPacket in project android_frameworks_base by crdroidandroid.

the class DhcpPacketTest method checkIpAddress.

private void checkIpAddress(String expected, byte type, Inet4Address clientIp, Inet4Address yourIp, byte[] netmaskBytes) throws Exception {
    ByteBuffer packet = new TestDhcpPacket(type, clientIp, yourIp).setNetmaskBytes(netmaskBytes).build();
    DhcpPacket offerPacket = DhcpPacket.decodeFullPacket(packet, ENCAP_BOOTP);
    DhcpResults results = offerPacket.toDhcpResults();
    if (expected != null) {
        LinkAddress expectedAddress = new LinkAddress(expected);
        assertEquals(expectedAddress, results.ipAddress);
    } else {
        assertNull(results);
    }
}

Example 69 with DhcpPacket

use of android.net.dhcp.DhcpPacket in project android_frameworks_base by crdroidandroid.

the class DhcpPacketTest method testUdpServerAnySourcePort.

@SmallTest
public void testUdpServerAnySourcePort() throws Exception {
    final ByteBuffer packet = ByteBuffer.wrap(HexDump.hexStringToByteArray(// Ethernet header.
    "9cd917000000001c2e0000000800" + // IP header.
    "45a00148000040003d115087d18194fb0a0f7af2" + // NOTE: The server source port is not the canonical port 67.
    "C29F004401341268" + // BOOTP header.
    "02010600d628ba8200000000000000000a0f7af2000000000a0fc818" + // MAC address.
    "9cd91700000000000000000000000000" + // Server name.
    "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + // File.
    "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + // Options.
    "6382536335010236040a0169fc3304000151800104ffff000003040a0fc817060cd1818003d1819403" + "d18180060f0777766d2e6564751c040a0fffffff000000"));
    DhcpPacket offerPacket = DhcpPacket.decodeFullPacket(packet, ENCAP_L2);
    assertTrue(offerPacket instanceof DhcpOfferPacket);
    assertEquals("9CD917000000", HexDump.toHexString(offerPacket.getClientMac()));
    DhcpResults dhcpResults = offerPacket.toDhcpResults();
    assertDhcpResults("10.15.122.242/16", "10.15.200.23", "209.129.128.3,209.129.148.3,209.129.128.6", "wvm.edu", "10.1.105.252", null, 86400, false, 0, dhcpResults);
}

Example 70 with DhcpPacket

use of android.net.dhcp.DhcpPacket in project android_frameworks_base by crdroidandroid.

the class DhcpPacketTest method testOffer1.

@SmallTest
public void testOffer1() throws Exception {
    // TODO: Turn all of these into golden files. This will probably require modifying
    // Android.mk appropriately, making this into an AndroidTestCase, and adding code to read
    // the golden files from the test APK's assets via mContext.getAssets().
    final ByteBuffer packet = ByteBuffer.wrap(HexDump.hexStringToByteArray(// IP header.
    "451001480000000080118849c0a89003c0a89ff7" + // UDP header.
    "004300440134dcfa" + // BOOTP header.
    "02010600c997a63b0000000000000000c0a89ff70000000000000000" + // MAC address.
    "30766ff2a90c00000000000000000000" + // Server name.
    "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + // File.
    "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000000000" + // Options
    "638253633501023604c0a89003330400001c200104fffff0000304c0a89ffe06080808080808080404" + "3a0400000e103b040000189cff00000000000000000000"));
    DhcpPacket offerPacket = DhcpPacket.decodeFullPacket(packet, ENCAP_L3);
    // Implicitly checks it's non-null.
    assertTrue(offerPacket instanceof DhcpOfferPacket);
    DhcpResults dhcpResults = offerPacket.toDhcpResults();
    assertDhcpResults("192.168.159.247/20", "192.168.159.254", "8.8.8.8,8.8.4.4", null, "192.168.144.3", null, 7200, false, 0, dhcpResults);
}