Package org.pcap4j.packet
Class GtpV1Packet.GtpV1Header
- java.lang.Object
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- org.pcap4j.packet.AbstractPacket.AbstractHeader
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- org.pcap4j.packet.GtpV1Packet.GtpV1Header
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- All Implemented Interfaces:
java.io.Serializable
,Packet.Header
- Enclosing class:
- GtpV1Packet
public static final class GtpV1Packet.GtpV1Header extends AbstractPacket.AbstractHeader
GTPv1 Header8 7 6 5 4 3 2 1 +-----+-----+-----+-----+-----+-----+-----+-----+ | Version | PT | (*) | E | S | PN | +-----+-----+-----+-----+-----+-----+-----+-----+ | Message Type | +-----+-----+-----+-----+-----+-----+-----+-----+ | Length (1st Octet) | +-----+-----+-----+-----+-----+-----+-----+-----+ | Length (2nd Octet) | +-----+-----+-----+-----+-----+-----+-----+-----+ | Tunnel Endpoint Identifier (1st Octet) | +-----+-----+-----+-----+-----+-----+-----+-----+ | Tunnel Endpoint Identifier (2nd Octet) | +-----+-----+-----+-----+-----+-----+-----+-----+ | Tunnel Endpoint Identifier (3rd Octet) | +-----+-----+-----+-----+-----+-----+-----+-----+ | Tunnel Endpoint Identifier (4th Octet) | +-----+-----+-----+-----+-----+-----+-----+-----+ | Sequence Number (1st Octet) | +-----+-----+-----+-----+-----+-----+-----+-----+ | Sequence Number (2nd Octet) | +-----+-----+-----+-----+-----+-----+-----+-----+ | N-PDU Number | +-----+-----+-----+-----+-----+-----+-----+-----+ | Next Extension Header Type | +-----+-----+-----+-----+-----+-----+-----+-----+
- Since:
- pcap4j 1.6.6
- Author:
- Waveform, Kaito Yamada
- See Also:
- ETSI TS 129 060 V12.6.0, Serialized Form
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Method Summary
Modifier and Type Method Description protected java.lang.String
buildString()
This method builds the valuetoString()
will return.protected int
calcHashCode()
This method builds the valuehashCode()
will return using the byte arraygetRawData()
returns.protected int
calcLength()
This method calculates the valuelength()
will return by adding up the lengths of byte arrays in the listgetRawFields()
returns.boolean
equals(java.lang.Object obj)
Indicates whether some other object is "equal to" this one using return values ofgetRawData()
.short
getLength()
int
getLengthAsInt()
GtpV1MessageType
getMessageType()
GtpV1ExtensionHeaderType
getNextExtensionHeaderType()
java.lang.Byte
getNPduNumber()
java.lang.Integer
getNPduNumberAsInt()
GtpV1Packet.ProtocolType
getProtocolType()
protected java.util.List<byte[]>
getRawFields()
Returns a list of byte arrays which represents this header's fields.boolean
getReserved()
java.lang.Short
getSequenceNumber()
java.lang.Integer
getSequenceNumberAsInt()
int
getTeid()
long
getTeidAsLong()
GtpVersion
getVersion()
boolean
isExtensionHeaderFieldPresent()
boolean
isNPduNumberFieldPresent()
boolean
isSequenceNumberFieldPresent()
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Methods inherited from class org.pcap4j.packet.AbstractPacket.AbstractHeader
buildHexString, buildRawData, getRawData, hashCode, length, toHexString, toString
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Method Detail
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getVersion
public GtpVersion getVersion()
- Returns:
- version
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getProtocolType
public GtpV1Packet.ProtocolType getProtocolType()
- Returns:
- protocolType.
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getReserved
public boolean getReserved()
- Returns:
- true if the reserved field is set to 1; false otherwise.
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isExtensionHeaderFieldPresent
public boolean isExtensionHeaderFieldPresent()
- Returns:
- true if the extension header flag is set to 1; false otherwise.
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isSequenceNumberFieldPresent
public boolean isSequenceNumberFieldPresent()
- Returns:
- true if the sequence number flag is set to 1; false otherwise.
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isNPduNumberFieldPresent
public boolean isNPduNumberFieldPresent()
- Returns:
- true if the N-PDU number flag is set to 1; false otherwise.
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getMessageType
public GtpV1MessageType getMessageType()
- Returns:
- messageType
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getLength
public short getLength()
- Returns:
- length
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getLengthAsInt
public int getLengthAsInt()
- Returns:
- length
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getTeid
public int getTeid()
- Returns:
- teid
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getTeidAsLong
public long getTeidAsLong()
- Returns:
- teid
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getSequenceNumber
public java.lang.Short getSequenceNumber()
- Returns:
- sequenceNumber. May be null.
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getSequenceNumberAsInt
public java.lang.Integer getSequenceNumberAsInt()
- Returns:
- sequenceNumber. May be null.
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getNPduNumber
public java.lang.Byte getNPduNumber()
- Returns:
- nPduNumber. May be null.
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getNPduNumberAsInt
public java.lang.Integer getNPduNumberAsInt()
- Returns:
- nPduNumber. May be null.
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getNextExtensionHeaderType
public GtpV1ExtensionHeaderType getNextExtensionHeaderType()
- Returns:
- nextExtensionHeaderType. May be null.
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getRawFields
protected java.util.List<byte[]> getRawFields()
Description copied from class:AbstractPacket.AbstractHeader
Returns a list of byte arrays which represents this header's fields. This method is called bycalcLength()
andbuildRawData()
.- Specified by:
getRawFields
in classAbstractPacket.AbstractHeader
- Returns:
- a list of byte arrays which represents this header's fields
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calcLength
protected int calcLength()
Description copied from class:AbstractPacket.AbstractHeader
This method calculates the valuelength()
will return by adding up the lengths of byte arrays in the listgetRawFields()
returns.- Overrides:
calcLength
in classAbstractPacket.AbstractHeader
- Returns:
- a calculated length
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buildString
protected java.lang.String buildString()
Description copied from class:AbstractPacket.AbstractHeader
This method builds the valuetoString()
will return.- Overrides:
buildString
in classAbstractPacket.AbstractHeader
- Returns:
- a string representation of this object
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calcHashCode
protected int calcHashCode()
Description copied from class:AbstractPacket.AbstractHeader
This method builds the valuehashCode()
will return using the byte arraygetRawData()
returns. This method may be better to be overridden for performance reason.- Overrides:
calcHashCode
in classAbstractPacket.AbstractHeader
- Returns:
- a calculated hash code value for the object
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equals
public boolean equals(java.lang.Object obj)
Description copied from class:AbstractPacket.AbstractHeader
Indicates whether some other object is "equal to" this one using return values ofgetRawData()
. This method should be overridden so that it does more strict comparisons more efficiently.- Overrides:
equals
in classAbstractPacket.AbstractHeader
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