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