Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.bgpio.types; |
| 18 | |
| 19 | import java.net.InetAddress; |
| 20 | import java.util.LinkedList; |
| 21 | import java.util.List; |
Shashikanth VH | 510a8d8 | 2016-02-12 12:32:43 +0530 | [diff] [blame] | 22 | import java.util.ListIterator; |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 23 | |
| 24 | import org.jboss.netty.buffer.ChannelBuffer; |
Shashikanth VH | 510a8d8 | 2016-02-12 12:32:43 +0530 | [diff] [blame] | 25 | import org.jboss.netty.buffer.ChannelBuffers; |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 26 | import org.onlab.packet.Ip4Address; |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 27 | import org.onosproject.bgpio.exceptions.BgpParseException; |
| 28 | import org.onosproject.bgpio.protocol.BgpLSNlri; |
Shashikanth VH | 510a8d8 | 2016-02-12 12:32:43 +0530 | [diff] [blame] | 29 | import org.onosproject.bgpio.protocol.flowspec.BgpFlowSpecDetails; |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 30 | import org.onosproject.bgpio.protocol.linkstate.BgpPrefixIPv4LSNlriVer4; |
| 31 | import org.onosproject.bgpio.protocol.linkstate.BgpNodeLSNlriVer4; |
Priyanka B | e07ea4d | 2015-11-21 21:28:10 +0530 | [diff] [blame] | 32 | import org.onosproject.bgpio.protocol.linkstate.BgpLinkLsNlriVer4; |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 33 | import org.onosproject.bgpio.util.Constants; |
| 34 | import org.onosproject.bgpio.util.Validation; |
| 35 | import org.slf4j.Logger; |
| 36 | import org.slf4j.LoggerFactory; |
| 37 | |
| 38 | import com.google.common.base.MoreObjects; |
| 39 | |
| 40 | /* |
| 41 | * Provides Implementation of MpReach Nlri BGP Path Attribute. |
| 42 | */ |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 43 | public class MpReachNlri implements BgpValueType { |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 44 | |
| 45 | private static final Logger log = LoggerFactory.getLogger(MpReachNlri.class); |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 46 | public static final byte MPREACHNLRI_TYPE = 14; |
| 47 | public static final byte LINK_NLRITYPE = 2; |
Shashikanth VH | 510a8d8 | 2016-02-12 12:32:43 +0530 | [diff] [blame] | 48 | public static final byte FLAGS = (byte) 0x90; |
| 49 | public static final short FLOW_SPEC_LEN = 240; |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 50 | private boolean isMpReachNlri = false; |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 51 | private final List<BgpLSNlri> mpReachNlri; |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 52 | private final int length; |
| 53 | private final short afi; |
| 54 | private final byte safi; |
| 55 | private final Ip4Address ipNextHop; |
Shashikanth VH | 510a8d8 | 2016-02-12 12:32:43 +0530 | [diff] [blame] | 56 | private BgpFlowSpecDetails bgpFlowSpecInfo; |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 57 | |
| 58 | /** |
| 59 | * Constructor to initialize parameters. |
| 60 | * |
| 61 | * @param mpReachNlri MpReach Nlri attribute |
| 62 | * @param afi address family identifier |
| 63 | * @param safi subsequent address family identifier |
| 64 | * @param ipNextHop nexthop IpAddress |
| 65 | * @param length of MpReachNlri |
| 66 | */ |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 67 | public MpReachNlri(List<BgpLSNlri> mpReachNlri, short afi, byte safi, Ip4Address ipNextHop, int length) { |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 68 | this.mpReachNlri = mpReachNlri; |
| 69 | this.isMpReachNlri = true; |
| 70 | this.ipNextHop = ipNextHop; |
| 71 | this.afi = afi; |
| 72 | this.safi = safi; |
| 73 | this.length = length; |
| 74 | } |
| 75 | |
Shashikanth VH | 510a8d8 | 2016-02-12 12:32:43 +0530 | [diff] [blame] | 76 | public MpReachNlri(BgpFlowSpecDetails bgpFlowSpecInfo, short afi, byte safi) { |
| 77 | this.mpReachNlri = null; |
| 78 | this.isMpReachNlri = true; |
| 79 | this.length = 0; |
| 80 | this.ipNextHop = null; |
| 81 | this.bgpFlowSpecInfo = bgpFlowSpecInfo; |
| 82 | this.afi = afi; |
| 83 | this.safi = safi; |
| 84 | } |
| 85 | |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 86 | /** |
| 87 | * Returns whether MpReachNlri is present. |
| 88 | * |
| 89 | * @return whether MpReachNlri is present |
| 90 | */ |
| 91 | public boolean isMpReachNlriSet() { |
| 92 | return this.isMpReachNlri; |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Returns list of MpReach Nlri. |
| 97 | * |
| 98 | * @return list of MpReach Nlri |
| 99 | */ |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 100 | public List<BgpLSNlri> mpReachNlri() { |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 101 | return this.mpReachNlri; |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Returns length of MpReachNlri. |
| 106 | * |
| 107 | * @return length of MpReachNlri |
| 108 | */ |
| 109 | public int mpReachNlriLen() { |
| 110 | return this.length; |
| 111 | } |
| 112 | |
| 113 | /** |
Shashikanth VH | 510a8d8 | 2016-02-12 12:32:43 +0530 | [diff] [blame] | 114 | * Returns BGP flow specification info. |
| 115 | * |
| 116 | * @return BGP flow specification info |
| 117 | */ |
| 118 | public BgpFlowSpecDetails bgpFlowSpecInfo() { |
| 119 | return this.bgpFlowSpecInfo; |
| 120 | } |
| 121 | |
| 122 | /** |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 123 | * Reads from ChannelBuffer and parses MpReachNlri. |
| 124 | * |
| 125 | * @param cb channelBuffer |
| 126 | * @return object of MpReachNlri |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 127 | * @throws BgpParseException while parsing MpReachNlri |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 128 | */ |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 129 | public static MpReachNlri read(ChannelBuffer cb) throws BgpParseException { |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 130 | ChannelBuffer tempBuf = cb.copy(); |
| 131 | Validation parseFlags = Validation.parseAttributeHeader(cb); |
| 132 | int len = parseFlags.isShort() ? parseFlags.getLength() + Constants.TYPE_AND_LEN_AS_SHORT : |
| 133 | parseFlags.getLength() + Constants.TYPE_AND_LEN_AS_BYTE; |
| 134 | ChannelBuffer data = tempBuf.readBytes(len); |
| 135 | |
| 136 | if (cb.readableBytes() < parseFlags.getLength()) { |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 137 | Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 138 | parseFlags.getLength()); |
| 139 | } |
| 140 | if (!parseFlags.getFirstBit() && parseFlags.getSecondBit() && parseFlags.getThirdBit()) { |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 141 | throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_FLAGS_ERROR, data); |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 142 | } |
| 143 | |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 144 | BgpLSNlri bgpLSNlri = null; |
| 145 | List<BgpLSNlri> mpReachNlri = new LinkedList<>(); |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 146 | ChannelBuffer tempCb = cb.readBytes(parseFlags.getLength()); |
| 147 | short afi = 0; |
| 148 | byte safi = 0; |
| 149 | Ip4Address ipNextHop = null; |
| 150 | while (tempCb.readableBytes() > 0) { |
| 151 | afi = tempCb.readShort(); |
| 152 | safi = tempCb.readByte(); |
| 153 | |
| 154 | //Supporting for AFI 16388 / SAFI 71 and VPN AFI 16388 / SAFI 128 |
| 155 | if ((afi == Constants.AFI_VALUE) && (safi == Constants.SAFI_VALUE) || (afi == Constants.AFI_VALUE) |
| 156 | && (safi == Constants.VPN_SAFI_VALUE)) { |
| 157 | byte nextHopLen = tempCb.readByte(); |
Vidyashree Rama | 7ba6b4c | 2015-11-30 17:20:22 +0530 | [diff] [blame] | 158 | InetAddress ipAddress = Validation.toInetAddress(nextHopLen, tempCb); |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 159 | if (ipAddress.isMulticastAddress()) { |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 160 | throw new BgpParseException("Multicast not supported"); |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 161 | } |
| 162 | ipNextHop = Ip4Address.valueOf(ipAddress); |
| 163 | byte reserved = tempCb.readByte(); |
| 164 | |
| 165 | while (tempCb.readableBytes() > 0) { |
| 166 | short nlriType = tempCb.readShort(); |
| 167 | short totNlriLen = tempCb.readShort(); |
| 168 | if (tempCb.readableBytes() < totNlriLen) { |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 169 | Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, |
| 170 | BgpErrorType.ATTRIBUTE_LENGTH_ERROR, totNlriLen); |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 171 | } |
| 172 | tempBuf = tempCb.readBytes(totNlriLen); |
| 173 | switch (nlriType) { |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 174 | case BgpNodeLSNlriVer4.NODE_NLRITYPE: |
| 175 | bgpLSNlri = BgpNodeLSNlriVer4.read(tempBuf, afi, safi); |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 176 | break; |
Priyanka B | e07ea4d | 2015-11-21 21:28:10 +0530 | [diff] [blame] | 177 | case BgpLinkLsNlriVer4.LINK_NLRITYPE: |
| 178 | bgpLSNlri = BgpLinkLsNlriVer4.read(tempBuf, afi, safi); |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 179 | break; |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 180 | case BgpPrefixIPv4LSNlriVer4.PREFIX_IPV4_NLRITYPE: |
| 181 | bgpLSNlri = BgpPrefixIPv4LSNlriVer4.read(tempBuf, afi, safi); |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 182 | break; |
| 183 | default: |
| 184 | log.debug("nlriType not supported" + nlriType); |
| 185 | } |
| 186 | mpReachNlri.add(bgpLSNlri); |
| 187 | } |
Shashikanth VH | 510a8d8 | 2016-02-12 12:32:43 +0530 | [diff] [blame] | 188 | } else if ((afi == Constants.AFI_FLOWSPEC_VALUE) |
| 189 | && ((safi == Constants.SAFI_FLOWSPEC_VALUE) |
| 190 | || (safi == Constants.VPN_SAFI_FLOWSPEC_VALUE))) { |
| 191 | List<BgpValueType> flowSpecComponents = new LinkedList<>(); |
| 192 | BgpValueType flowSpecComponent = null; |
| 193 | |
| 194 | byte nextHopLen = tempCb.readByte(); |
| 195 | if (nextHopLen > 0) { |
| 196 | InetAddress ipAddress = Validation.toInetAddress(nextHopLen, tempCb); |
| 197 | if (ipAddress.isMulticastAddress()) { |
| 198 | throw new BgpParseException("Multicast not supported"); |
| 199 | } |
| 200 | ipNextHop = Ip4Address.valueOf(ipAddress); |
| 201 | } |
| 202 | |
| 203 | byte reserved = tempCb.readByte(); |
| 204 | short totNlriLen = tempCb.getByte(tempCb.readerIndex()); |
| 205 | if (totNlriLen >= FLOW_SPEC_LEN) { |
| 206 | totNlriLen = tempCb.readShort(); |
| 207 | } else { |
| 208 | totNlriLen = tempCb.readByte(); |
| 209 | } |
| 210 | if (tempCb.readableBytes() < totNlriLen) { |
| 211 | Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, |
| 212 | BgpErrorType.ATTRIBUTE_LENGTH_ERROR, totNlriLen); |
| 213 | } |
| 214 | tempBuf = tempCb.readBytes(totNlriLen); |
| 215 | while (tempBuf.readableBytes() > 0) { |
| 216 | short type = tempBuf.readByte(); |
| 217 | switch (type) { |
| 218 | case Constants.BGP_FLOWSPEC_DST_PREFIX: |
| 219 | flowSpecComponent = BgpFsDestinationPrefix.read(tempBuf); |
| 220 | break; |
| 221 | case Constants.BGP_FLOWSPEC_SRC_PREFIX: |
| 222 | flowSpecComponent = BgpFsSourcePrefix.read(tempBuf); |
| 223 | break; |
| 224 | case Constants.BGP_FLOWSPEC_IP_PROTO: |
| 225 | flowSpecComponent = BgpFsIpProtocol.read(tempBuf); |
| 226 | break; |
| 227 | case Constants.BGP_FLOWSPEC_PORT: |
| 228 | flowSpecComponent = BgpFsPortNum.read(tempBuf); |
| 229 | break; |
| 230 | case Constants.BGP_FLOWSPEC_DST_PORT: |
| 231 | flowSpecComponent = BgpFsDestinationPortNum.read(tempBuf); |
| 232 | break; |
| 233 | case Constants.BGP_FLOWSPEC_SRC_PORT: |
| 234 | flowSpecComponent = BgpFsSourcePortNum.read(tempBuf); |
| 235 | break; |
| 236 | case Constants.BGP_FLOWSPEC_ICMP_TP: |
| 237 | flowSpecComponent = BgpFsIcmpType.read(tempBuf); |
| 238 | break; |
| 239 | case Constants.BGP_FLOWSPEC_ICMP_CD: |
| 240 | flowSpecComponent = BgpFsIcmpType.read(tempBuf); |
| 241 | break; |
| 242 | case Constants.BGP_FLOWSPEC_TCP_FLAGS: |
| 243 | flowSpecComponent = BgpFsTcpFlags.read(tempBuf); |
| 244 | break; |
| 245 | case Constants.BGP_FLOWSPEC_PCK_LEN: |
| 246 | flowSpecComponent = BgpFsPacketLength.read(tempBuf); |
| 247 | break; |
| 248 | case Constants.BGP_FLOWSPEC_DSCP: |
| 249 | flowSpecComponent = BgpFsDscpValue.read(tempBuf); |
| 250 | break; |
| 251 | case Constants.BGP_FLOWSPEC_FRAGMENT: |
| 252 | flowSpecComponent = BgpFsFragment.read(tempBuf); |
| 253 | break; |
| 254 | default: |
| 255 | log.debug("flow spec type not supported" + type); |
| 256 | break; |
| 257 | } |
| 258 | flowSpecComponents.add(flowSpecComponent); |
| 259 | } |
| 260 | return new MpReachNlri(new BgpFlowSpecDetails(flowSpecComponents), afi, safi); |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 261 | } else { |
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 262 | throw new BgpParseException("Not Supporting afi " + afi + "safi " + safi); |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 263 | } |
| 264 | } |
| 265 | return new MpReachNlri(mpReachNlri, afi, safi, ipNextHop, parseFlags.getLength()); |
| 266 | } |
| 267 | |
| 268 | @Override |
| 269 | public short getType() { |
| 270 | return MPREACHNLRI_TYPE; |
| 271 | } |
| 272 | |
| 273 | /** |
| 274 | * Returns AFI. |
| 275 | * |
| 276 | * @return AFI |
| 277 | */ |
| 278 | public short afi() { |
| 279 | return this.afi; |
| 280 | } |
| 281 | |
| 282 | /** |
| 283 | * Returns Nexthop IpAddress. |
| 284 | * |
| 285 | * @return Nexthop IpAddress |
| 286 | */ |
| 287 | public Ip4Address nexthop4() { |
| 288 | return this.ipNextHop; |
| 289 | } |
| 290 | |
| 291 | /** |
| 292 | * Returns SAFI. |
| 293 | * |
| 294 | * @return SAFI |
| 295 | */ |
| 296 | public byte safi() { |
| 297 | return this.safi; |
| 298 | } |
| 299 | |
| 300 | @Override |
| 301 | public int write(ChannelBuffer cb) { |
Shashikanth VH | 510a8d8 | 2016-02-12 12:32:43 +0530 | [diff] [blame] | 302 | int iLenStartIndex = cb.writerIndex(); |
| 303 | if ((afi == Constants.AFI_FLOWSPEC_VALUE) && ((safi == Constants.SAFI_FLOWSPEC_VALUE) |
| 304 | || (safi == Constants.VPN_SAFI_FLOWSPEC_VALUE))) { |
| 305 | |
| 306 | cb.writeByte(FLAGS); |
| 307 | cb.writeByte(MPREACHNLRI_TYPE); |
| 308 | |
| 309 | int mpReachDataIndx = cb.writerIndex(); |
| 310 | cb.writeShort(0); |
| 311 | |
| 312 | cb.writeShort(afi); |
| 313 | cb.writeByte(safi); |
| 314 | //next hop address |
| 315 | cb.writeByte(0); |
| 316 | //sub network points of attachment |
| 317 | cb.writeByte(0); |
| 318 | |
| 319 | if (bgpFlowSpecInfo.routeDistinguisher() != null) { |
| 320 | cb.writeLong(bgpFlowSpecInfo.routeDistinguisher().getRouteDistinguisher()); |
| 321 | } |
| 322 | |
| 323 | ChannelBuffer flowSpecTmpBuff = ChannelBuffers.dynamicBuffer(); |
| 324 | int tmpBuffStartIndx = flowSpecTmpBuff.writerIndex(); |
| 325 | |
| 326 | List<BgpValueType> flowSpec = bgpFlowSpecInfo.flowSpecComponents(); |
| 327 | ListIterator<BgpValueType> listIterator = flowSpec.listIterator(); |
| 328 | |
| 329 | while (listIterator.hasNext()) { |
| 330 | BgpValueType tlv = listIterator.next(); |
| 331 | switch (tlv.getType()) { |
| 332 | case Constants.BGP_FLOWSPEC_DST_PREFIX: |
| 333 | BgpFsDestinationPrefix fsDstPrefix = (BgpFsDestinationPrefix) tlv; |
| 334 | fsDstPrefix.write(flowSpecTmpBuff); |
| 335 | break; |
| 336 | case Constants.BGP_FLOWSPEC_SRC_PREFIX: |
| 337 | BgpFsSourcePrefix fsSrcPrefix = (BgpFsSourcePrefix) tlv; |
| 338 | fsSrcPrefix.write(flowSpecTmpBuff); |
| 339 | break; |
| 340 | case Constants.BGP_FLOWSPEC_IP_PROTO: |
| 341 | BgpFsIpProtocol fsIpProtocol = (BgpFsIpProtocol) tlv; |
| 342 | fsIpProtocol.write(flowSpecTmpBuff); |
| 343 | break; |
| 344 | case Constants.BGP_FLOWSPEC_PORT: |
| 345 | BgpFsPortNum fsPortNum = (BgpFsPortNum) tlv; |
| 346 | fsPortNum.write(flowSpecTmpBuff); |
| 347 | break; |
| 348 | case Constants.BGP_FLOWSPEC_DST_PORT: |
| 349 | BgpFsDestinationPortNum fsDstPortNum = (BgpFsDestinationPortNum) tlv; |
| 350 | fsDstPortNum.write(flowSpecTmpBuff); |
| 351 | break; |
| 352 | case Constants.BGP_FLOWSPEC_SRC_PORT: |
| 353 | BgpFsSourcePortNum fsSrcPortNum = (BgpFsSourcePortNum) tlv; |
| 354 | fsSrcPortNum.write(flowSpecTmpBuff); |
| 355 | break; |
| 356 | case Constants.BGP_FLOWSPEC_ICMP_TP: |
| 357 | BgpFsIcmpType fsIcmpType = (BgpFsIcmpType) tlv; |
| 358 | fsIcmpType.write(flowSpecTmpBuff); |
| 359 | break; |
| 360 | case Constants.BGP_FLOWSPEC_ICMP_CD: |
| 361 | BgpFsIcmpCode fsIcmpCode = (BgpFsIcmpCode) tlv; |
| 362 | fsIcmpCode.write(flowSpecTmpBuff); |
| 363 | break; |
| 364 | case Constants.BGP_FLOWSPEC_TCP_FLAGS: |
| 365 | BgpFsTcpFlags fsTcpFlags = (BgpFsTcpFlags) tlv; |
| 366 | fsTcpFlags.write(flowSpecTmpBuff); |
| 367 | break; |
| 368 | case Constants.BGP_FLOWSPEC_PCK_LEN: |
| 369 | BgpFsPacketLength fsPacketLen = (BgpFsPacketLength) tlv; |
| 370 | fsPacketLen.write(flowSpecTmpBuff); |
| 371 | break; |
| 372 | case Constants.BGP_FLOWSPEC_DSCP: |
| 373 | BgpFsDscpValue fsDscpVal = (BgpFsDscpValue) tlv; |
| 374 | fsDscpVal.write(flowSpecTmpBuff); |
| 375 | break; |
| 376 | case Constants.BGP_FLOWSPEC_FRAGMENT: |
| 377 | BgpFsFragment fsFragment = (BgpFsFragment) tlv; |
| 378 | fsFragment.write(flowSpecTmpBuff); |
| 379 | break; |
| 380 | default: |
| 381 | break; |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | /* RFC 5575: section 4, If the NLRI length value is smaller than 240 (0xf0 hex), the length |
| 386 | field can be encoded as a single octet. Otherwise, it is encoded as |
| 387 | an extended-length 2-octet values */ |
| 388 | int len = flowSpecTmpBuff.writerIndex() - tmpBuffStartIndx; |
| 389 | if (len >= FLOW_SPEC_LEN) { |
| 390 | cb.writeShort(len); |
| 391 | } else { |
| 392 | cb.writeByte(len); |
| 393 | } |
| 394 | //Copy from bynamic buffer to channel buffer |
| 395 | cb.writeBytes(flowSpecTmpBuff); |
| 396 | |
| 397 | int fsNlriLen = cb.writerIndex() - mpReachDataIndx; |
| 398 | cb.setShort(mpReachDataIndx, (short) (fsNlriLen - 2)); |
| 399 | |
| 400 | } |
| 401 | |
| 402 | return cb.writerIndex() - iLenStartIndex; |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 403 | } |
| 404 | |
| 405 | @Override |
| 406 | public String toString() { |
Shashikanth VH | 510a8d8 | 2016-02-12 12:32:43 +0530 | [diff] [blame] | 407 | return MoreObjects.toStringHelper(getClass()).omitNullValues() |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 408 | .add("mpReachNlri", mpReachNlri) |
Shashikanth VH | 510a8d8 | 2016-02-12 12:32:43 +0530 | [diff] [blame] | 409 | .add("bgpFlowSpecInfo", bgpFlowSpecInfo) |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 410 | .add("afi", afi) |
| 411 | .add("safi", safi) |
| 412 | .add("ipNextHop", ipNextHop) |
| 413 | .add("length", length) |
| 414 | .toString(); |
| 415 | } |
Priyanka B | 0204073 | 2015-11-29 11:30:29 +0530 | [diff] [blame] | 416 | |
| 417 | @Override |
| 418 | public int compareTo(Object o) { |
| 419 | // TODO Auto-generated method stub |
| 420 | return 0; |
| 421 | } |
Priyanka B | 3b69554 | 2015-10-14 17:16:27 +0530 | [diff] [blame] | 422 | } |