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Diffstat (limited to 'common/framework/com/android/net/module/util/NetworkStackConstants.java')
| -rw-r--r-- | common/framework/com/android/net/module/util/NetworkStackConstants.java | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/common/framework/com/android/net/module/util/NetworkStackConstants.java b/common/framework/com/android/net/module/util/NetworkStackConstants.java deleted file mode 100644 index 91491605..00000000 --- a/common/framework/com/android/net/module/util/NetworkStackConstants.java +++ /dev/null @@ -1,341 +0,0 @@ -/* - * Copyright (C) 2020 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.net.module.util; - -import android.net.InetAddresses; -import android.net.IpPrefix; - -import java.net.Inet4Address; -import java.net.Inet6Address; -import java.net.InetAddress; -import java.net.UnknownHostException; - -/** - * Network constants used by the network stack. - * @hide - */ -public final class NetworkStackConstants { - - /** - * Ethernet constants. - * - * See also: - * - https://tools.ietf.org/html/rfc894 - * - https://tools.ietf.org/html/rfc2464 - * - https://tools.ietf.org/html/rfc7042 - * - http://www.iana.org/assignments/ethernet-numbers/ethernet-numbers.xhtml - * - http://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.xhtml - */ - public static final int ETHER_DST_ADDR_OFFSET = 0; - public static final int ETHER_SRC_ADDR_OFFSET = 6; - public static final int ETHER_ADDR_LEN = 6; - public static final int ETHER_TYPE_OFFSET = 12; - public static final int ETHER_TYPE_LENGTH = 2; - public static final int ETHER_TYPE_ARP = 0x0806; - public static final int ETHER_TYPE_IPV4 = 0x0800; - public static final int ETHER_TYPE_IPV6 = 0x86dd; - public static final int ETHER_HEADER_LEN = 14; - public static final int ETHER_MTU = 1500; - public static final byte[] ETHER_BROADCAST = new byte[] { - (byte) 0xff, (byte) 0xff, (byte) 0xff, - (byte) 0xff, (byte) 0xff, (byte) 0xff, - }; - - /** - * ARP constants. - * - * See also: - * - https://tools.ietf.org/html/rfc826 - * - http://www.iana.org/assignments/arp-parameters/arp-parameters.xhtml - */ - public static final int ARP_PAYLOAD_LEN = 28; // For Ethernet+IPv4. - public static final int ARP_ETHER_IPV4_LEN = ARP_PAYLOAD_LEN + ETHER_HEADER_LEN; - public static final int ARP_REQUEST = 1; - public static final int ARP_REPLY = 2; - public static final int ARP_HWTYPE_RESERVED_LO = 0; - public static final int ARP_HWTYPE_ETHER = 1; - public static final int ARP_HWTYPE_RESERVED_HI = 0xffff; - - /** - * IPv4 Address Conflict Detection constants. - * - * See also: - * - https://tools.ietf.org/html/rfc5227 - */ - public static final int IPV4_CONFLICT_PROBE_NUM = 3; - public static final int IPV4_CONFLICT_ANNOUNCE_NUM = 2; - - /** - * IPv4 constants. - * - * See also: - * - https://tools.ietf.org/html/rfc791 - */ - public static final int IPV4_ADDR_BITS = 32; - public static final int IPV4_MIN_MTU = 68; - public static final int IPV4_MAX_MTU = 65_535; - public static final int IPV4_HEADER_MIN_LEN = 20; - public static final int IPV4_IHL_MASK = 0xf; - public static final int IPV4_LENGTH_OFFSET = 2; - public static final int IPV4_FLAGS_OFFSET = 6; - public static final int IPV4_FRAGMENT_MASK = 0x1fff; - public static final int IPV4_PROTOCOL_OFFSET = 9; - public static final int IPV4_CHECKSUM_OFFSET = 10; - public static final int IPV4_SRC_ADDR_OFFSET = 12; - public static final int IPV4_DST_ADDR_OFFSET = 16; - public static final int IPV4_ADDR_LEN = 4; - public static final int IPV4_FLAG_MF = 0x2000; - public static final int IPV4_FLAG_DF = 0x4000; - // getSockOpt() for v4 MTU - public static final int IP_MTU = 14; - public static final Inet4Address IPV4_ADDR_ALL = makeInet4Address( - (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff); - public static final Inet4Address IPV4_ADDR_ANY = makeInet4Address( - (byte) 0, (byte) 0, (byte) 0, (byte) 0); - public static final Inet6Address IPV6_ADDR_ANY = makeInet6Address(new byte[]{ - (byte) 0, (byte) 0, (byte) 0, (byte) 0, - (byte) 0, (byte) 0, (byte) 0, (byte) 0, - (byte) 0, (byte) 0, (byte) 0, (byte) 0, - (byte) 0, (byte) 0, (byte) 0, (byte) 0 }); - - /** - * CLAT constants - */ - public static final IpPrefix CLAT_PREFIX = new IpPrefix("192.0.0.0/29"); - - /** - * IPv6 constants. - * - * See also: - * - https://tools.ietf.org/html/rfc2460 - */ - public static final int IPV6_ADDR_LEN = 16; - public static final int IPV6_HEADER_LEN = 40; - public static final int IPV6_LEN_OFFSET = 4; - public static final int IPV6_PROTOCOL_OFFSET = 6; - public static final int IPV6_SRC_ADDR_OFFSET = 8; - public static final int IPV6_DST_ADDR_OFFSET = 24; - public static final int IPV6_MIN_MTU = 1280; - public static final int IPV6_FRAGMENT_HEADER_LEN = 8; - public static final int RFC7421_PREFIX_LENGTH = 64; - // getSockOpt() for v6 MTU - public static final int IPV6_MTU = 24; - public static final Inet6Address IPV6_ADDR_ALL_NODES_MULTICAST = - (Inet6Address) InetAddresses.parseNumericAddress("ff02::1"); - public static final Inet6Address IPV6_ADDR_ALL_ROUTERS_MULTICAST = - (Inet6Address) InetAddresses.parseNumericAddress("ff02::2"); - public static final Inet6Address IPV6_ADDR_ALL_HOSTS_MULTICAST = - (Inet6Address) InetAddresses.parseNumericAddress("ff02::3"); - - /** - * ICMP constants. - * - * See also: - * - https://tools.ietf.org/html/rfc792 - */ - public static final int ICMP_CHECKSUM_OFFSET = 2; - public static final int ICMP_HEADER_LEN = 8; - /** - * ICMPv6 constants. - * - * See also: - * - https://tools.ietf.org/html/rfc4191 - * - https://tools.ietf.org/html/rfc4443 - * - https://tools.ietf.org/html/rfc4861 - */ - public static final int ICMPV6_HEADER_MIN_LEN = 4; - public static final int ICMPV6_CHECKSUM_OFFSET = 2; - public static final int ICMPV6_ECHO_REPLY_TYPE = 129; - public static final int ICMPV6_ECHO_REQUEST_TYPE = 128; - public static final int ICMPV6_ROUTER_SOLICITATION = 133; - public static final int ICMPV6_ROUTER_ADVERTISEMENT = 134; - public static final int ICMPV6_NEIGHBOR_SOLICITATION = 135; - public static final int ICMPV6_NEIGHBOR_ADVERTISEMENT = 136; - public static final int ICMPV6_ND_OPTION_MIN_LENGTH = 8; - public static final int ICMPV6_ND_OPTION_LENGTH_SCALING_FACTOR = 8; - public static final int ICMPV6_ND_OPTION_SLLA = 1; - public static final int ICMPV6_ND_OPTION_TLLA = 2; - public static final int ICMPV6_ND_OPTION_PIO = 3; - public static final int ICMPV6_ND_OPTION_MTU = 5; - public static final int ICMPV6_ND_OPTION_RIO = 24; - public static final int ICMPV6_ND_OPTION_RDNSS = 25; - public static final int ICMPV6_ND_OPTION_PREF64 = 38; - - public static final int ICMPV6_RS_HEADER_LEN = 8; - public static final int ICMPV6_RA_HEADER_LEN = 16; - public static final int ICMPV6_NS_HEADER_LEN = 24; - public static final int ICMPV6_NA_HEADER_LEN = 24; - - public static final int NEIGHBOR_ADVERTISEMENT_FLAG_ROUTER = 1 << 31; - public static final int NEIGHBOR_ADVERTISEMENT_FLAG_SOLICITED = 1 << 30; - public static final int NEIGHBOR_ADVERTISEMENT_FLAG_OVERRIDE = 1 << 29; - - public static final byte ROUTER_ADVERTISEMENT_FLAG_MANAGED_ADDRESS = (byte) (1 << 7); - public static final byte ROUTER_ADVERTISEMENT_FLAG_OTHER = (byte) (1 << 6); - - public static final byte PIO_FLAG_ON_LINK = (byte) (1 << 7); - public static final byte PIO_FLAG_AUTONOMOUS = (byte) (1 << 6); - - /** - * TCP constants. - * - * See also: - * - https://tools.ietf.org/html/rfc793 - */ - public static final int TCP_HEADER_MIN_LEN = 20; - public static final int TCP_CHECKSUM_OFFSET = 16; - public static final byte TCPHDR_FIN = (byte) (1 << 0); - public static final byte TCPHDR_SYN = (byte) (1 << 1); - public static final byte TCPHDR_RST = (byte) (1 << 2); - public static final byte TCPHDR_PSH = (byte) (1 << 3); - public static final byte TCPHDR_ACK = (byte) (1 << 4); - public static final byte TCPHDR_URG = (byte) (1 << 5); - - /** - * UDP constants. - * - * See also: - * - https://tools.ietf.org/html/rfc768 - */ - public static final int UDP_HEADER_LEN = 8; - public static final int UDP_SRCPORT_OFFSET = 0; - public static final int UDP_DSTPORT_OFFSET = 2; - public static final int UDP_LENGTH_OFFSET = 4; - public static final int UDP_CHECKSUM_OFFSET = 6; - - /** - * DHCP constants. - * - * See also: - * - https://tools.ietf.org/html/rfc2131 - */ - public static final int INFINITE_LEASE = 0xffffffff; - public static final int DHCP4_CLIENT_PORT = 68; - // The maximum length of a DHCP packet that can be constructed. - public static final int DHCP_MAX_LENGTH = 1500; - public static final int DHCP_MAX_OPTION_LEN = 255; - - /** - * DHCPv6 constants. - * - * See also: - * - https://datatracker.ietf.org/doc/html/rfc8415 - * - https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml - */ - public static final int DHCP6_CLIENT_PORT = 546; - public static final int DHCP6_SERVER_PORT = 547; - public static final Inet6Address ALL_DHCP_RELAY_AGENTS_AND_SERVERS = - (Inet6Address) InetAddresses.parseNumericAddress("ff02::1:2"); - public static final int DHCP6_OPTION_IA_PD = 25; - public static final int DHCP6_OPTION_IAPREFIX = 26; - - /** - * DNS constants. - * - * See also: - * - https://datatracker.ietf.org/doc/html/rfc7858#section-3.1 - */ - public static final short DNS_OVER_TLS_PORT = 853; - - /** - * IEEE802.11 standard constants. - * - * See also: - * - https://ieeexplore.ieee.org/document/7786995 - */ - public static final int VENDOR_SPECIFIC_IE_ID = 0xdd; - - - /** - * TrafficStats constants. - */ - // These tags are used by the network stack to do traffic for its own purposes. Traffic - // tagged with these will be counted toward the network stack and must stay inside the - // range defined by - // {@link android.net.TrafficStats#TAG_NETWORK_STACK_RANGE_START} and - // {@link android.net.TrafficStats#TAG_NETWORK_STACK_RANGE_END}. - public static final int TAG_SYSTEM_DHCP = 0xFFFFFE01; - public static final int TAG_SYSTEM_NEIGHBOR = 0xFFFFFE02; - public static final int TAG_SYSTEM_DHCP_SERVER = 0xFFFFFE03; - - // These tags are used by the network stack to do traffic on behalf of apps. Traffic - // tagged with these will be counted toward the app on behalf of which the network - // stack is doing this traffic. These values must stay inside the range defined by - // {@link android.net.TrafficStats#TAG_NETWORK_STACK_IMPERSONATION_RANGE_START} and - // {@link android.net.TrafficStats#TAG_NETWORK_STACK_IMPERSONATION_RANGE_END}. - public static final int TAG_SYSTEM_PROBE = 0xFFFFFF81; - public static final int TAG_SYSTEM_DNS = 0xFFFFFF82; - - /** - * A test URL used to override configuration settings and overlays for the network validation - * HTTPS URL, when set in {@link android.provider.DeviceConfig} configuration. - * - * <p>This URL will be ignored if the host is not "localhost" (it can only be used to test with - * a local test server), and must not be set in production scenarios (as enforced by CTS tests). - * - * <p>{@link #TEST_URL_EXPIRATION_TIME} must also be set to use this setting. - */ - public static final String TEST_CAPTIVE_PORTAL_HTTPS_URL = "test_captive_portal_https_url"; - /** - * A test URL used to override configuration settings and overlays for the network validation - * HTTP URL, when set in {@link android.provider.DeviceConfig} configuration. - * - * <p>This URL will be ignored if the host is not "localhost" (it can only be used to test with - * a local test server), and must not be set in production scenarios (as enforced by CTS tests). - * - * <p>{@link #TEST_URL_EXPIRATION_TIME} must also be set to use this setting. - */ - public static final String TEST_CAPTIVE_PORTAL_HTTP_URL = "test_captive_portal_http_url"; - /** - * Expiration time of the test URL, in ms, relative to {@link System#currentTimeMillis()}. - * - * <p>After this expiration time, test URLs will be ignored. They will also be ignored if - * the expiration time is more than 10 minutes in the future, to avoid misconfiguration - * following test runs. - */ - public static final String TEST_URL_EXPIRATION_TIME = "test_url_expiration_time"; - - // TODO: Move to Inet4AddressUtils - // See aosp/1455936: NetworkStackConstants can't depend on it as it causes jarjar-related issues - // for users of both the net-utils-device-common and net-utils-framework-common libraries. - // Jarjar rule management needs to be simplified for that: b/170445871 - - /** - * Make an Inet4Address from 4 bytes in network byte order. - */ - private static Inet4Address makeInet4Address(byte b1, byte b2, byte b3, byte b4) { - try { - return (Inet4Address) InetAddress.getByAddress(new byte[] { b1, b2, b3, b4 }); - } catch (UnknownHostException e) { - throw new IllegalArgumentException("addr must be 4 bytes: this should never happen"); - } - } - - /** - * Make an Inet6Address from 16 bytes in network byte order. - */ - private static Inet6Address makeInet6Address(byte[] bytes) { - try { - return (Inet6Address) InetAddress.getByAddress(bytes); - } catch (UnknownHostException e) { - throw new IllegalArgumentException("addr must be 16 bytes: this should never happen"); - } - } - private NetworkStackConstants() { - throw new UnsupportedOperationException("This class is not to be instantiated"); - } -} |