A Discrete-Event Network Simulator
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ipcs-classifier.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2009 INRIA, UDcast
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation;
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  * Mohamed Amine Ismail <amine.ismail@sophia.inria.fr>
19  *
20  */
21 
22 #include "ipcs-classifier.h"
23 #include <stdint.h>
24 #include "ns3/log.h"
25 #include "service-flow.h"
26 #include "ns3/packet.h"
27 #include "ns3/ipv4-header.h"
28 #include "ns3/udp-header.h"
29 #include "ns3/tcp-header.h"
30 #include "ns3/llc-snap-header.h"
31 #include "ns3/udp-l4-protocol.h"
32 #include "ns3/tcp-l4-protocol.h"
33 
34 NS_LOG_COMPONENT_DEFINE ("IpcsClassifier");
35 
36 namespace ns3 {
37 
38 NS_OBJECT_ENSURE_REGISTERED (IpcsClassifier)
39  ;
40 
42 {
43  static TypeId tid = TypeId ("ns3::IpcsClassifier")
44  .SetParent<Object> ();
45  return tid;
46 }
47 
49 {
50 }
51 
53 {
54 }
55 
59 {
60  Ptr<Packet> C_Packet = packet->Copy ();
61 
62  LlcSnapHeader llc;
63  C_Packet->RemoveHeader (llc);
64 
65  Ipv4Header ipv4Header;
66  C_Packet->RemoveHeader (ipv4Header);
67  Ipv4Address source_address = ipv4Header.GetSource ();
68  Ipv4Address dest_address = ipv4Header.GetDestination ();
69  uint8_t protocol = ipv4Header.GetProtocol ();
70 
71  uint16_t sourcePort = 0;
72  uint16_t destPort = 0;
73  if (protocol == UdpL4Protocol::PROT_NUMBER)
74  {
75  UdpHeader udpHeader;
76  C_Packet->RemoveHeader (udpHeader);
77  sourcePort = udpHeader.GetSourcePort ();
78  destPort = udpHeader.GetDestinationPort ();
79  }
80  else if (protocol == TcpL4Protocol::PROT_NUMBER)
81  {
82  TcpHeader tcpHeader;
83  C_Packet->RemoveHeader (tcpHeader);
84  sourcePort = tcpHeader.GetSourcePort ();
85  destPort = tcpHeader.GetDestinationPort ();
86  }
87  else
88  {
89  NS_LOG_INFO ("\t\t\tUnknown protocol: " << protocol);
90  return 0;
91  }
92 
93  NS_LOG_INFO ("Classifing packet: src_addr=" << source_address << " dst_addr="
94  << dest_address << " src_port=" << sourcePort << " dst_port="
95  << destPort << " proto=" << (uint16_t) protocol);
96  return (sfm->DoClassify (source_address,
97  dest_address,
98  sourcePort,
99  destPort,
100  protocol,dir));
101 }
102 
103 }
uint32_t RemoveHeader(Header &header)
Deserialize and remove the header from the internal buffer.
Definition: packet.cc:268
uint16_t GetDestinationPort() const
Definition: tcp-header.cc:93
Ipv4Address GetDestination(void) const
Definition: ipv4-header.cc:304
uint8_t GetProtocol(void) const
Definition: ipv4-header.cc:272
NS_OBJECT_ENSURE_REGISTERED(NullMessageSimulatorImpl)
#define NS_LOG_INFO(msg)
Definition: log.h:298
Ipv4Address GetSource(void) const
Definition: ipv4-header.cc:291
ServiceFlow * Classify(Ptr< const Packet > packet, Ptr< ServiceFlowManager > sfm, ServiceFlow::Direction dir)
classify a packet in a service flow
Packet header for IPv4.
Definition: ipv4-header.h:31
static const uint8_t PROT_NUMBER
protocol number (0x6)
Ptr< Packet > Copy(void) const
Definition: packet.cc:122
Header for the Transmission Control Protocol.
Definition: tcp-header.h:43
uint16_t GetSourcePort(void) const
Definition: udp-header.cc:66
Packet header for UDP packets.
Definition: udp-header.h:39
This class implements service flows as described by the IEEE-802.16 standard.
Definition: service-flow.h:39
Ipv4 addresses are stored in host order in this class.
Definition: ipv4-address.h:38
uint16_t GetSourcePort() const
Definition: tcp-header.cc:89
a base class which provides memory management and object aggregation
Definition: object.h:63
NS_LOG_COMPONENT_DEFINE("IpcsClassifier")
static TypeId GetTypeId(void)
uint16_t GetDestinationPort(void) const
Definition: udp-header.cc:71
a unique identifier for an interface.
Definition: type-id.h:49
static const uint8_t PROT_NUMBER
protocol number (0x11)
TypeId SetParent(TypeId tid)
Definition: type-id.cc:611
Header for the LLC/SNAP encapsulation.