X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fsal%2Fapi%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fsal%2Fpacket%2FICMP.java;h=35ae71d0019ed2b0b1d4893c7e47901be6e906ea;hp=0429c0dd279e1231ace4a0bfd7c6b880163101ba;hb=6da6997191436393555ec0d26e541e71d61b2bf1;hpb=66b4fbc0fd997591f71745f514013484abb30175

diff --git a/opendaylight/sal/api/src/main/java/org/opendaylight/controller/sal/packet/ICMP.java b/opendaylight/sal/api/src/main/java/org/opendaylight/controller/sal/packet/ICMP.java
index 0429c0dd27..35ae71d001 100644
--- a/opendaylight/sal/api/src/main/java/org/opendaylight/controller/sal/packet/ICMP.java
+++ b/opendaylight/sal/api/src/main/java/org/opendaylight/controller/sal/packet/ICMP.java
@@ -68,7 +68,7 @@ public class ICMP extends Packet {
 
     /**
      * Sets the type for the current ICMP message
-     * 
+     *
      * @param type
      *            The ICMP message type
      * @return This ICMP object
@@ -79,9 +79,18 @@ public class ICMP extends Packet {
         return this;
     }
 
+    /**
+     * Returns the type field of the current ICMP packet
+     *
+     * @return The type code of the current ICMP packet
+     */
+    public byte getType() {
+        return BitBufferHelper.getByte(fieldValues.get(TYPE));
+    }
+
     /**
      * Sets the ICMP code (type subtype) for the current ICMP object instance
-     * 
+     *
      * @param code
      *            The ICMP message type subtype
      * @return This ICMP object
@@ -92,6 +101,15 @@ public class ICMP extends Packet {
         return this;
     }
 
+    /**
+     * Gets the ICMP code (type subtype) for the current ICMP object instance
+     *
+     * @return The ICMP message type subtype
+     */
+    public byte getCode() {
+        return BitBufferHelper.getByte(fieldValues.get(CODE));
+    }
+
     /**
      * Sets the ICMP checksum  for the current ICMP object instance
      * @param short - checksum
@@ -104,7 +122,7 @@ public class ICMP extends Packet {
     }
 
     /**
-     * Sets the ICMP identifier  for the current ICMP object instance
+     * Sets the ICMP identifier for the current ICMP object instance
      * @param short - identifier
      * @return ICMP
      */
@@ -114,6 +132,16 @@ public class ICMP extends Packet {
         return this;
     }
 
+    /**
+     * Gets the ICMP identifier of the current ICMP object instance
+     *
+     * @return short - identifier
+     */
+
+    public short getIdentifier() {
+        return BitBufferHelper.getShort(fieldValues.get(IDENTIFIER));
+    }
+
     /**
      * Sets the ICMP sequence number for the current ICMP object instance
      * @param short - seqNumber
@@ -125,6 +153,16 @@ public class ICMP extends Packet {
         return this;
     }
 
+    /**
+     * Gets the ICMP sequence number of the current ICMP object instance
+     *
+     * @return short - seqNumber
+     */
+
+    public short getSequenceNumber() {
+        return BitBufferHelper.getShort(fieldValues.get(SEQNUMBER));
+    }
+
     /**
      * Gets the header size in bits
      * @return The ICMP header size in bits
@@ -136,7 +174,7 @@ public class ICMP extends Packet {
 
     /**
      * Computes the ICMP checksum on the serialized ICMP message
-     * 
+     *
      * @param serialized
      *            The data stream
      * @param start
@@ -146,22 +184,20 @@ public class ICMP extends Packet {
      */
     short computeChecksum(byte[] data, int start) {
         int sum = 0, carry = 0, finalSum = 0;
-        int end = start + this.getHeaderSize() / NetUtils.NumBitsInAByte
-                + rawPayload.length;
-        int checksumStartByte = start + getfieldOffset(CHECKSUM)
-                / NetUtils.NumBitsInAByte;
+        int wordData;
+        int end = start + this.getHeaderSize() / NetUtils.NumBitsInAByte;
+        if (rawPayload != null) {
+            end += rawPayload.length;
+        }
+        int checksumStartByte = start + getfieldOffset(CHECKSUM) / NetUtils.NumBitsInAByte;
 
         for (int i = start; i <= (end - 1); i = i + 2) {
             // Skip, if the current bytes are checkSum bytes
             if (i == checksumStartByte) {
                 continue;
             }
-            StringBuffer sbuffer = new StringBuffer();
-            sbuffer.append(String.format("%02X", data[i]));
-            if (i < (data.length - 1)) {
-                sbuffer.append(String.format("%02X", data[i + 1]));
-            }
-            sum += Integer.valueOf(sbuffer.toString(), 16);
+            wordData = ((data[i] << 8) & 0xFF00) + (data[i + 1] & 0xFF);
+            sum = sum + wordData;
         }
         carry = (sum >> 16) & 0xFF;
         finalSum = (sum & 0xFFFF) + carry;