BB-Gen

About BB-Gen

BB-Gen is simple CLI based packet crafter written in Python over Scapy library to generate packet flows formatted as PCAP files by taking user-defined parameters as inputs based on the headers defined in a P4₁₄ program. It can natively crafts packets for different standard and custom protocols. It aims to create PCAP files to be used with a wide set of Traffic Generators (e.g., pktgen-dpdk, NFPA, TCPDUMP, etc.) helping network developers to validate the network and execute performance tests over the targets.

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Installation

step 1: $ sudo apt-get install git
step 2: $ git clone --recursive https://github.com/intrig-unicamp/BB-Gen.git
step 3: $ cd BB-Gen
step 4: $ sudo ./dependencies.py
step 5: $ cd p4-hlir
step 6: $ sudo python setup.py install
step 7: $ cd ..
step 8: $ python main.py

BB-Gen generates a PCAP and Trace files. The PCAPs can be used for testing together with tools such as NFPA.

Usage

main.py [-h] [-p] [-t] [-n] [-nm] [-rnip] [-rnmac] [-rnport] [-pkt]
        [-p4] [-u] [-udata] [-perf] [-d] [-v]

BB-Gen PCAP generator

optional arguments:  
-h, --help            show this help message and exit
-p , --protocol       Type of packet:
                       ipv4, ipv6, vxlan, gre, l2
                       Default: ipv4
-t , --tansport       Specifies the transport protocol:
                       tcp or udp
                       For VXLAN and GRE is the encapsulated protocol
                       Default: tcp
-n , --number         Number of entries
                       Default: 100
-nm , --name          PCAP name
                       Default: ipv4
-rnip                 Random IP
                       Default: False
-rnmac                Random MAC
                       Default: False
-rnport               Random Port
                       Default: False
-pkt , --packetsize   Specify here the required packetsize
                       In case of more than one, separated the list with coma
                       e.g. 64,215,514.
                       Default: 64
-p4                   Specify a P4 code to autogenerates the traces
                       Default: none
-u , --usecase        Use Case:
                       macsad
                       Default: none
-udata , --userdata   User Specified Data
-perf, --performance  Performance PCAPs
                       64, 128, 254, 512, 1024, 1280, 1518 pkt size
                       Default: False
-d, --debug           Debug enable
-v                    show program's version number and exit

Running BB-Gen

Designed for simplicity, BB-Gen delivers an intuitive CLI based interface. By specifying only a few flags, can be created a set of traces files.

Examples:

Generation of 100 vxlan traces with packet size of 64B:

$ python main.py -p vxlan -n 100

Generation of random 1k IPv4 traces for performance test:

$ python main.py -p ipv4 -n 1000 -rnip -rnmac -rnport --performance

MACSAD use case:

$ python main.py -u macsad

Using a P4₁₄ code to autogenerate 100 traces:

$ python main.py -p4 examples/p4_src/l3_fwd_ipv6.p4 -n 100

Supported Protocols:

• Ethernet
• IPv4 / IPv6
• UDP
• TCP
• GRE
• VXLAN

Contributing

PRs are very much appreciated. For bugs/features consider creating an issue before sending a PR.

Team

We are members of INTRIG (Information & Networking Technologies Research & Innovation Group) at University of Campinas - Unicamp, SP, Brazil. Thanks to all contributors!

Fabricio Rodríguez ([email protected]) 💻 🔌 👀	Gyanesh Patra ([email protected]) 💻 🔌 👀	Christian Esteve Rothenberg ([email protected]) 📢 🎨

Team member list is generated by the all-contributors specification (emoji key).

Acknowledgments

This work was supported by the Innovation Center, Ericsson Telecomunicações S.A., Brazil under grant agreement UNI.61.