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1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3#
4# Simple example:
5# * pktgen sending with single thread and single interface
6# * flow variation via random UDP source port
7#
8basedir=`dirname $0`
9source ${basedir}/functions.sh
10root_check_run_with_sudo "$@"
11
12# Parameter parsing via include
13# - go look in parameters.sh to see which setting are avail
14# - required param is the interface "-i" stored in $DEV
15source ${basedir}/parameters.sh
16
17# Trap EXIT first
18trap_exit
19
20#
21# Set some default params, if they didn't get set
22if [ -z "$DEST_IP" ]; then
23 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"
24fi
25[ -z "$CLONE_SKB" ] && CLONE_SKB="0"
26# Example enforce param "-m" for dst_mac
27[ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac"
28[ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely
29if [ -n "$DEST_IP" ]; then
30 validate_addr${IP6} $DEST_IP
31 read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP)
32fi
33if [ -n "$DST_PORT" ]; then
34 read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT)
35 validate_ports $UDP_DST_MIN $UDP_DST_MAX
36fi
37
38# Flow variation random source port between min and max
39UDP_SRC_MIN=9
40UDP_SRC_MAX=109
41
42# General cleanup everything since last run
43# (especially important if other threads were configured by other scripts)
44[ -z "$APPEND" ] && pg_ctrl "reset"
45
46# Add remove all other devices and add_device $DEV to thread 0
47thread=0
48[ -z "$APPEND" ] && pg_thread $thread "rem_device_all"
49pg_thread $thread "add_device" $DEV
50
51# How many packets to send (zero means indefinitely)
52pg_set $DEV "count $COUNT"
53
54# Reduce alloc cost by sending same SKB many times
55# - this obviously affects the randomness within the packet
56pg_set $DEV "clone_skb $CLONE_SKB"
57
58# Set packet size
59pg_set $DEV "pkt_size $PKT_SIZE"
60
61# Delay between packets (zero means max speed)
62pg_set $DEV "delay $DELAY"
63
64# Flag example disabling timestamping
65pg_set $DEV "flag NO_TIMESTAMP"
66
67# Destination
68pg_set $DEV "dst_mac $DST_MAC"
69pg_set $DEV "dst${IP6}_min $DST_MIN"
70pg_set $DEV "dst${IP6}_max $DST_MAX"
71
72if [ -n "$DST_PORT" ]; then
73 # Single destination port or random port range
74 pg_set $DEV "flag UDPDST_RND"
75 pg_set $DEV "udp_dst_min $UDP_DST_MIN"
76 pg_set $DEV "udp_dst_max $UDP_DST_MAX"
77fi
78
79[ ! -z "$UDP_CSUM" ] && pg_set $DEV "flag UDPCSUM"
80
81# Setup random UDP port src range
82pg_set $DEV "flag UDPSRC_RND"
83pg_set $DEV "udp_src_min $UDP_SRC_MIN"
84pg_set $DEV "udp_src_max $UDP_SRC_MAX"
85
86# Run if user hits control-c
87function print_result() {
88 # Print results
89 echo "Result device: $DEV"
90 cat /proc/net/pktgen/$DEV
91}
92# trap keyboard interrupt (Ctrl-C)
93trap true SIGINT
94
95if [ -z "$APPEND" ]; then
96 # start_run
97 echo "Running... ctrl^C to stop" >&2
98 pg_ctrl "start"
99 echo "Done" >&2
100
101 print_result
102else
103 echo "Append mode: config done. Do more or use 'pg_ctrl start' to run"
104fi
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3#
4# Simple example:
5# * pktgen sending with single thread and single interface
6# * flow variation via random UDP source port
7#
8basedir=`dirname $0`
9source ${basedir}/functions.sh
10root_check_run_with_sudo "$@"
11
12# Parameter parsing via include
13# - go look in parameters.sh to see which setting are avail
14# - required param is the interface "-i" stored in $DEV
15source ${basedir}/parameters.sh
16
17# Trap EXIT first
18trap_exit
19
20#
21# Set some default params, if they didn't get set
22if [ -z "$DEST_IP" ]; then
23 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"
24fi
25[ -z "$CLONE_SKB" ] && CLONE_SKB="0"
26# Example enforce param "-m" for dst_mac
27[ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac"
28[ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely
29if [ -n "$DEST_IP" ]; then
30 validate_addr${IP6} $DEST_IP
31 read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP)
32fi
33if [ -n "$DST_PORT" ]; then
34 read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT)
35 validate_ports $UDP_DST_MIN $UDP_DST_MAX
36fi
37
38# Flow variation random source port between min and max
39UDP_SRC_MIN=9
40UDP_SRC_MAX=109
41
42# General cleanup everything since last run
43# (especially important if other threads were configured by other scripts)
44[ -z "$APPEND" ] && pg_ctrl "reset"
45
46# Add remove all other devices and add_device $DEV to thread 0
47thread=0
48[ -z "$APPEND" ] && pg_thread $thread "rem_device_all"
49pg_thread $thread "add_device" $DEV
50
51# How many packets to send (zero means indefinitely)
52pg_set $DEV "count $COUNT"
53
54# Reduce alloc cost by sending same SKB many times
55# - this obviously affects the randomness within the packet
56pg_set $DEV "clone_skb $CLONE_SKB"
57
58# Set packet size
59pg_set $DEV "pkt_size $PKT_SIZE"
60
61# Delay between packets (zero means max speed)
62pg_set $DEV "delay $DELAY"
63
64# Flag example disabling timestamping
65pg_set $DEV "flag NO_TIMESTAMP"
66
67# Destination
68pg_set $DEV "dst_mac $DST_MAC"
69pg_set $DEV "dst${IP6}_min $DST_MIN"
70pg_set $DEV "dst${IP6}_max $DST_MAX"
71
72if [ -n "$DST_PORT" ]; then
73 # Single destination port or random port range
74 pg_set $DEV "flag UDPDST_RND"
75 pg_set $DEV "udp_dst_min $UDP_DST_MIN"
76 pg_set $DEV "udp_dst_max $UDP_DST_MAX"
77fi
78
79[ ! -z "$UDP_CSUM" ] && pg_set $dev "flag UDPCSUM"
80
81# Setup random UDP port src range
82pg_set $DEV "flag UDPSRC_RND"
83pg_set $DEV "udp_src_min $UDP_SRC_MIN"
84pg_set $DEV "udp_src_max $UDP_SRC_MAX"
85
86# Run if user hits control-c
87function print_result() {
88 # Print results
89 echo "Result device: $DEV"
90 cat /proc/net/pktgen/$DEV
91}
92# trap keyboard interrupt (Ctrl-C)
93trap true SIGINT
94
95if [ -z "$APPEND" ]; then
96 # start_run
97 echo "Running... ctrl^C to stop" >&2
98 pg_ctrl "start"
99 echo "Done" >&2
100
101 print_result
102else
103 echo "Append mode: config done. Do more or use 'pg_ctrl start' to run"
104fi