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Currently, kernel pktgen has the feature to specify destination
address range for sending packet. (e.g. pgset "dst_min/dst_max")
But on samples, each pktgen script doesn't have any option to achieve this.
This commit adds the feature to specify the destination address range with CIDR.
-d : ($DEST_IP) destination IP. CIDR (e.g. 198.18.0.0/15) is also allowed
# ./pktgen_sample01_simple.sh -6 -d fe80::20/126 -p 3000 -n 4
# tcpdump ip6 and udp
05:14:18.082285 IP6 fe80::99.71 > fe80::23.3000: UDP, length 16
05:14:18.082564 IP6 fe80::99.43 > fe80::23.3000: UDP, length 16
05:14:18.083366 IP6 fe80::99.107 > fe80::22.3000: UDP, length 16
05:14:18.083585 IP6 fe80::99.97 > fe80::21.3000: UDP, length 16
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
47 lines
1.9 KiB
ReStructuredText
47 lines
1.9 KiB
ReStructuredText
Sample and benchmark scripts for pktgen (packet generator)
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==========================================================
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This directory contains some pktgen sample and benchmark scripts, that
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can easily be copied and adjusted for your own use-case.
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General doc is located in kernel: Documentation/networking/pktgen.txt
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Helper include files
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====================
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This directory contains two helper shell files, that can be "included"
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by shell source'ing. Namely "functions.sh" and "parameters.sh".
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Common parameters
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-----------------
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The parameters.sh file support easy and consistant parameter parsing
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across the sample scripts. Usage example is printed on errors::
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Usage: ./pktgen_sample01_simple.sh [-vx] -i ethX
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-i : ($DEV) output interface/device (required)
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-s : ($PKT_SIZE) packet size
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-d : ($DEST_IP) destination IP. CIDR (e.g. 198.18.0.0/15) is also allowed
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-m : ($DST_MAC) destination MAC-addr
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-p : ($DST_PORT) destination PORT range (e.g. 433-444) is also allowed
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-t : ($THREADS) threads to start
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-f : ($F_THREAD) index of first thread (zero indexed CPU number)
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-c : ($SKB_CLONE) SKB clones send before alloc new SKB
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-n : ($COUNT) num messages to send per thread, 0 means indefinitely
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-b : ($BURST) HW level bursting of SKBs
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-v : ($VERBOSE) verbose
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-x : ($DEBUG) debug
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The global variable being set is also listed. E.g. the required
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interface/device parameter "-i" sets variable $DEV.
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Common functions
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----------------
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The functions.sh file provides; Three different shell functions for
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configuring the different components of pktgen: pg_ctrl(), pg_thread()
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and pg_set().
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These functions correspond to pktgens different components.
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* pg_ctrl() control "pgctrl" (/proc/net/pktgen/pgctrl)
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* pg_thread() control the kernel threads and binding to devices
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* pg_set() control setup of individual devices
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See sample scripts for usage examples.
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