Examples with IpPrefix android.net.IpPrefix used on opensource projects

Example 41 with IpPrefix

use of android.net.IpPrefix in project android_frameworks_base by crdroidandroid.

the class IPv6TetheringCoordinator method getIPv6OnlyLinkProperties.

private static LinkProperties getIPv6OnlyLinkProperties(LinkProperties lp) {
    final LinkProperties v6only = new LinkProperties();
    if (lp == null) {
        return v6only;
    }
    // NOTE: At this time we don't copy over any information about any
    // stacked links. No current stacked link configuration has IPv6.
    v6only.setInterfaceName(lp.getInterfaceName());
    v6only.setMtu(lp.getMtu());
    for (LinkAddress linkAddr : lp.getLinkAddresses()) {
        if (linkAddr.isGlobalPreferred() && linkAddr.getPrefixLength() == 64) {
            v6only.addLinkAddress(linkAddr);
        }
    }
    for (RouteInfo routeInfo : lp.getRoutes()) {
        final IpPrefix destination = routeInfo.getDestination();
        if ((destination.getAddress() instanceof Inet6Address) && (destination.getPrefixLength() <= 64)) {
            v6only.addRoute(routeInfo);
        }
    }
    for (InetAddress dnsServer : lp.getDnsServers()) {
        if (isIPv6GlobalAddress(dnsServer)) {
            // For now we include ULAs.
            v6only.addDnsServer(dnsServer);
        }
    }
    v6only.setDomains(lp.getDomains());
    return v6only;
}

Example 42 with IpPrefix

use of android.net.IpPrefix in project android_frameworks_base by crdroidandroid.

the class IPv6TetheringInterfaceServices method updateUpstreamIPv6LinkProperties.

// IPv6TetheringCoordinator sends updates with carefully curated IPv6-only
// LinkProperties. These have extraneous data filtered out and only the
// necessary prefixes included (per its prefix distribution policy).
//
// TODO: Evaluate using a data structure than is more directly suited to
// communicating only the relevant information.
public void updateUpstreamIPv6LinkProperties(LinkProperties v6only) {
    if (mRaDaemon == null)
        return;
    // Avoid unnecessary work on spurious updates.
    if (Objects.equals(mLastIPv6LinkProperties, v6only)) {
        return;
    }
    RaParams params = null;
    if (v6only != null) {
        params = new RaParams();
        params.mtu = v6only.getMtu();
        params.hasDefaultRoute = v6only.hasIPv6DefaultRoute();
        for (LinkAddress linkAddr : v6only.getLinkAddresses()) {
            if (linkAddr.getPrefixLength() != RFC7421_IP_PREFIX_LENGTH)
                continue;
            final IpPrefix prefix = new IpPrefix(linkAddr.getAddress(), linkAddr.getPrefixLength());
            params.prefixes.add(prefix);
            final Inet6Address dnsServer = getLocalDnsIpFor(prefix);
            if (dnsServer != null) {
                params.dnses.add(dnsServer);
            }
        }
    }
    // If v6only is null, we pass in null to setRaParams(), which handles
    // deprecation of any existing RA data.
    setRaParams(params);
    mLastIPv6LinkProperties = v6only;
}

Example 43 with IpPrefix

use of android.net.IpPrefix in project android_frameworks_base by crdroidandroid.

the class Vpn method makeLinkProperties.

private LinkProperties makeLinkProperties() {
    boolean allowIPv4 = mConfig.allowIPv4;
    boolean allowIPv6 = mConfig.allowIPv6;
    LinkProperties lp = new LinkProperties();
    lp.setInterfaceName(mInterface);
    if (mConfig.addresses != null) {
        for (LinkAddress address : mConfig.addresses) {
            lp.addLinkAddress(address);
            allowIPv4 |= address.getAddress() instanceof Inet4Address;
            allowIPv6 |= address.getAddress() instanceof Inet6Address;
        }
    }
    if (mConfig.routes != null) {
        for (RouteInfo route : mConfig.routes) {
            lp.addRoute(route);
            InetAddress address = route.getDestination().getAddress();
            allowIPv4 |= address instanceof Inet4Address;
            allowIPv6 |= address instanceof Inet6Address;
        }
    }
    if (mConfig.dnsServers != null) {
        for (String dnsServer : mConfig.dnsServers) {
            InetAddress address = InetAddress.parseNumericAddress(dnsServer);
            lp.addDnsServer(address);
            allowIPv4 |= address instanceof Inet4Address;
            allowIPv6 |= address instanceof Inet6Address;
        }
    }
    if (!allowIPv4) {
        lp.addRoute(new RouteInfo(new IpPrefix(Inet4Address.ANY, 0), RTN_UNREACHABLE));
    }
    if (!allowIPv6) {
        lp.addRoute(new RouteInfo(new IpPrefix(Inet6Address.ANY, 0), RTN_UNREACHABLE));
    }
    // Concatenate search domains into a string.
    StringBuilder buffer = new StringBuilder();
    if (mConfig.searchDomains != null) {
        for (String domain : mConfig.searchDomains) {
            buffer.append(domain).append(' ');
        }
    }
    lp.setDomains(buffer.toString().trim());
    return lp;
}

Example 44 with IpPrefix

use of android.net.IpPrefix in project android_frameworks_base by AOSPA.

the class RouteInfoTest method testMatches.

public void testMatches() {
    class PatchedRouteInfo {

        private final RouteInfo mRouteInfo;

        public PatchedRouteInfo(IpPrefix destination, InetAddress gateway, String iface) {
            mRouteInfo = new RouteInfo(destination, gateway, iface);
        }

        public boolean matches(InetAddress destination) {
            return mRouteInfo.matches(destination);
        }
    }
    PatchedRouteInfo r;
    r = new PatchedRouteInfo(Prefix("2001:db8:f00::ace:d00d/127"), null, "rmnet0");
    assertTrue(r.matches(Address("2001:db8:f00::ace:d00c")));
    assertTrue(r.matches(Address("2001:db8:f00::ace:d00d")));
    assertFalse(r.matches(Address("2001:db8:f00::ace:d00e")));
    assertFalse(r.matches(Address("2001:db8:f00::bad:d00d")));
    assertFalse(r.matches(Address("2001:4868:4860::8888")));
    assertFalse(r.matches(Address("8.8.8.8")));
    r = new PatchedRouteInfo(Prefix("192.0.2.0/23"), null, "wlan0");
    assertTrue(r.matches(Address("192.0.2.43")));
    assertTrue(r.matches(Address("192.0.3.21")));
    assertFalse(r.matches(Address("192.0.0.21")));
    assertFalse(r.matches(Address("8.8.8.8")));
    PatchedRouteInfo ipv6Default = new PatchedRouteInfo(Prefix("::/0"), null, "rmnet0");
    assertTrue(ipv6Default.matches(Address("2001:db8::f00")));
    assertFalse(ipv6Default.matches(Address("192.0.2.1")));
    PatchedRouteInfo ipv4Default = new PatchedRouteInfo(Prefix("0.0.0.0/0"), null, "rmnet0");
    assertTrue(ipv4Default.matches(Address("255.255.255.255")));
    assertTrue(ipv4Default.matches(Address("192.0.2.1")));
    assertFalse(ipv4Default.matches(Address("2001:db8::f00")));
}

Example 45 with IpPrefix

use of android.net.IpPrefix in project android_frameworks_base by AOSPA.

the class IPv6TetheringCoordinator method getIPv6OnlyLinkProperties.

private static LinkProperties getIPv6OnlyLinkProperties(LinkProperties lp) {
    final LinkProperties v6only = new LinkProperties();
    if (lp == null) {
        return v6only;
    }
    // NOTE: At this time we don't copy over any information about any
    // stacked links. No current stacked link configuration has IPv6.
    v6only.setInterfaceName(lp.getInterfaceName());
    v6only.setMtu(lp.getMtu());
    for (LinkAddress linkAddr : lp.getLinkAddresses()) {
        if (linkAddr.isGlobalPreferred() && linkAddr.getPrefixLength() == 64) {
            v6only.addLinkAddress(linkAddr);
        }
    }
    for (RouteInfo routeInfo : lp.getRoutes()) {
        final IpPrefix destination = routeInfo.getDestination();
        if ((destination.getAddress() instanceof Inet6Address) && (destination.getPrefixLength() <= 64)) {
            v6only.addRoute(routeInfo);
        }
    }
    for (InetAddress dnsServer : lp.getDnsServers()) {
        if (isIPv6GlobalAddress(dnsServer)) {
            // For now we include ULAs.
            v6only.addDnsServer(dnsServer);
        }
    }
    v6only.setDomains(lp.getDomains());
    return v6only;
}