Commit | Line | Data |
---|---|---|
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 ${basedir}/parameters.sh | |
a27ac539 M |
16 | |
17 | # Trap EXIT first | |
18 | trap_exit | |
19 | ||
6f094797 JDB |
20 | # |
21 | # Set some default params, if they didn't get set | |
0f06a678 MKL |
22 | if [ -z "$DEST_IP" ]; then |
23 | [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" | |
24 | fi | |
6f094797 JDB |
25 | [ -z "$CLONE_SKB" ] && CLONE_SKB="0" |
26 | # Example enforce param "-m" for dst_mac | |
27 | [ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac" | |
69137ea6 | 28 | [ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely |
40f843ee DL |
29 | if [ -n "$DEST_IP" ]; then |
30 | validate_addr${IP6} $DEST_IP | |
31 | read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) | |
32 | fi | |
6e32a74a | 33 | if [ -n "$DST_PORT" ]; then |
723d2904 DL |
34 | read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) |
35 | validate_ports $UDP_DST_MIN $UDP_DST_MAX | |
6e32a74a | 36 | fi |
6f094797 | 37 | |
6f094797 | 38 | # Flow variation random source port between min and max |
723d2904 DL |
39 | UDP_SRC_MIN=9 |
40 | UDP_SRC_MAX=109 | |
6f094797 JDB |
41 | |
42 | # General cleanup everything since last run | |
43 | # (especially important if other threads were configured by other scripts) | |
c8fd4852 | 44 | [ -z "$APPEND" ] && pg_ctrl "reset" |
6f094797 JDB |
45 | |
46 | # Add remove all other devices and add_device $DEV to thread 0 | |
47 | thread=0 | |
c8fd4852 | 48 | [ -z "$APPEND" ] && pg_thread $thread "rem_device_all" |
6f094797 JDB |
49 | pg_thread $thread "add_device" $DEV |
50 | ||
51 | # How many packets to send (zero means indefinitely) | |
52 | pg_set $DEV "count $COUNT" | |
53 | ||
54 | # Reduce alloc cost by sending same SKB many times | |
55 | # - this obviously affects the randomness within the packet | |
56 | pg_set $DEV "clone_skb $CLONE_SKB" | |
57 | ||
58 | # Set packet size | |
59 | pg_set $DEV "pkt_size $PKT_SIZE" | |
60 | ||
61 | # Delay between packets (zero means max speed) | |
62 | pg_set $DEV "delay $DELAY" | |
63 | ||
64 | # Flag example disabling timestamping | |
65 | pg_set $DEV "flag NO_TIMESTAMP" | |
66 | ||
67 | # Destination | |
68 | pg_set $DEV "dst_mac $DST_MAC" | |
40f843ee DL |
69 | pg_set $DEV "dst${IP6}_min $DST_MIN" |
70 | pg_set $DEV "dst${IP6}_max $DST_MAX" | |
6f094797 | 71 | |
6e32a74a DL |
72 | if [ -n "$DST_PORT" ]; then |
73 | # Single destination port or random port range | |
74 | pg_set $DEV "flag UDPDST_RND" | |
723d2904 DL |
75 | pg_set $DEV "udp_dst_min $UDP_DST_MIN" |
76 | pg_set $DEV "udp_dst_max $UDP_DST_MAX" | |
6e32a74a DL |
77 | fi |
78 | ||
460a9aa2 LB |
79 | [ ! -z "$UDP_CSUM" ] && pg_set $dev "flag UDPCSUM" |
80 | ||
6f094797 JDB |
81 | # Setup random UDP port src range |
82 | pg_set $DEV "flag UDPSRC_RND" | |
723d2904 DL |
83 | pg_set $DEV "udp_src_min $UDP_SRC_MIN" |
84 | pg_set $DEV "udp_src_max $UDP_SRC_MAX" | |
6f094797 | 85 | |
6c882bdc JK |
86 | # Run if user hits control-c |
87 | function print_result() { | |
88 | # Print results | |
89 | echo "Result device: $DEV" | |
90 | cat /proc/net/pktgen/$DEV | |
91 | } | |
92 | # trap keyboard interrupt (Ctrl-C) | |
93 | trap true SIGINT | |
94 | ||
c8fd4852 IR |
95 | if [ -z "$APPEND" ]; then |
96 | # start_run | |
97 | echo "Running... ctrl^C to stop" >&2 | |
98 | pg_ctrl "start" | |
99 | echo "Done" >&2 | |
6f094797 | 100 | |
6c882bdc | 101 | print_result |
c8fd4852 IR |
102 | else |
103 | echo "Append mode: config done. Do more or use 'pg_ctrl start' to run" | |
104 | fi |