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6f094797 | 1 | #!/bin/bash |
b2441318 | 2 | # SPDX-License-Identifier: GPL-2.0 |
6f094797 JDB |
3 | # |
4 | # Simple example: | |
5 | # * pktgen sending with single thread and single interface | |
6 | # * flow variation via random UDP source port | |
7 | # | |
8 | basedir=`dirname $0` | |
9 | source ${basedir}/functions.sh | |
10 | root_check_run_with_sudo "$@" | |
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 | |
15 | source ${basedir}/parameters.sh | |
16 | # | |
17 | # Set some default params, if they didn't get set | |
0f06a678 MKL |
18 | if [ -z "$DEST_IP" ]; then |
19 | [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" | |
20 | fi | |
6f094797 JDB |
21 | [ -z "$CLONE_SKB" ] && CLONE_SKB="0" |
22 | # Example enforce param "-m" for dst_mac | |
23 | [ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac" | |
69137ea6 | 24 | [ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely |
40f843ee DL |
25 | if [ -n "$DEST_IP" ]; then |
26 | validate_addr${IP6} $DEST_IP | |
27 | read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) | |
28 | fi | |
6e32a74a | 29 | if [ -n "$DST_PORT" ]; then |
723d2904 DL |
30 | read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) |
31 | validate_ports $UDP_DST_MIN $UDP_DST_MAX | |
6e32a74a | 32 | fi |
6f094797 JDB |
33 | |
34 | # Base Config | |
35 | DELAY="0" # Zero means max speed | |
6f094797 JDB |
36 | |
37 | # Flow variation random source port between min and max | |
723d2904 DL |
38 | UDP_SRC_MIN=9 |
39 | UDP_SRC_MAX=109 | |
6f094797 JDB |
40 | |
41 | # General cleanup everything since last run | |
42 | # (especially important if other threads were configured by other scripts) | |
43 | pg_ctrl "reset" | |
44 | ||
45 | # Add remove all other devices and add_device $DEV to thread 0 | |
46 | thread=0 | |
47 | pg_thread $thread "rem_device_all" | |
48 | pg_thread $thread "add_device" $DEV | |
49 | ||
50 | # How many packets to send (zero means indefinitely) | |
51 | pg_set $DEV "count $COUNT" | |
52 | ||
53 | # Reduce alloc cost by sending same SKB many times | |
54 | # - this obviously affects the randomness within the packet | |
55 | pg_set $DEV "clone_skb $CLONE_SKB" | |
56 | ||
57 | # Set packet size | |
58 | pg_set $DEV "pkt_size $PKT_SIZE" | |
59 | ||
60 | # Delay between packets (zero means max speed) | |
61 | pg_set $DEV "delay $DELAY" | |
62 | ||
63 | # Flag example disabling timestamping | |
64 | pg_set $DEV "flag NO_TIMESTAMP" | |
65 | ||
66 | # Destination | |
67 | pg_set $DEV "dst_mac $DST_MAC" | |
40f843ee DL |
68 | pg_set $DEV "dst${IP6}_min $DST_MIN" |
69 | pg_set $DEV "dst${IP6}_max $DST_MAX" | |
6f094797 | 70 | |
6e32a74a DL |
71 | if [ -n "$DST_PORT" ]; then |
72 | # Single destination port or random port range | |
73 | pg_set $DEV "flag UDPDST_RND" | |
723d2904 DL |
74 | pg_set $DEV "udp_dst_min $UDP_DST_MIN" |
75 | pg_set $DEV "udp_dst_max $UDP_DST_MAX" | |
6e32a74a DL |
76 | fi |
77 | ||
6f094797 JDB |
78 | # Setup random UDP port src range |
79 | pg_set $DEV "flag UDPSRC_RND" | |
723d2904 DL |
80 | pg_set $DEV "udp_src_min $UDP_SRC_MIN" |
81 | pg_set $DEV "udp_src_max $UDP_SRC_MAX" | |
6f094797 JDB |
82 | |
83 | # start_run | |
84 | echo "Running... ctrl^C to stop" >&2 | |
85 | pg_ctrl "start" | |
86 | echo "Done" >&2 | |
87 | ||
88 | # Print results | |
89 | echo "Result device: $DEV" | |
90 | cat /proc/net/pktgen/$DEV |