xref: /aosp_15_r20/external/wmediumd/tests/diamond_error_prob.sh (revision 621120a22a0cd8ba80b131fe8bcb37c86ff453e3) 
1#!/bin/bash
2# 4 mesh nodes in a diamond topology
3# paths must go through one of two intermediate nodes.
4
5num_nodes=4
6session=wmediumd
7subnet=10.10.10
8macfmt='02:00:00:00:%02x:00'
9
10. func
11
12if [[ $UID -ne 0 ]]; then
13	echo "Sorry, run me as root."
14	exit 1
15fi
16
17modprobe -r mac80211_hwsim
18modprobe mac80211_hwsim radios=$num_nodes
19
20for i in `seq 0 $((num_nodes-1))`; do
21	addrs[$i]=`printf $macfmt $i`
22done
23
24cat <<__EOM > diamond.cfg
25ifaces :
26{
27	ids = [
28		"02:00:00:00:00:00",
29		"02:00:00:00:01:00",
30		"02:00:00:00:02:00",
31		"02:00:00:00:03:00"
32	];
33};
34
35model:
36{
37	type = "prob";
38
39	default_prob = 1.0;
40	links = (
41		(0, 2, 0.000000),
42		(2, 3, 0.000000)
43	);
44};
45__EOM
46
47tmux new -s $session -d
48
49rm /tmp/netns.pid.* 2>/dev/null
50i=0
51for addr in ${addrs[@]}; do
52	phy=`addr2phy $addr`
53	dev=`ls /sys/class/ieee80211/$phy/device/net`
54	phys[$i]=$phy
55	devs[$i]=$dev
56
57	ip=${subnet}.$((10 + i))
58
59	# put this phy in own netns and tmux window, and start a mesh node
60	win=$session:$((i+1)).0
61	tmux new-window -t $session -n $ip
62
63	# start netns
64	pidfile=/tmp/netns.pid.$i
65	tmux send-keys -t $win 'lxc-unshare -s NETWORK /bin/bash' C-m
66	tmux send-keys -t $win 'echo $$ > '$pidfile C-m
67
68	# wait for netns to exist
69	while [[ ! -e $pidfile ]]; do
70		echo "Waiting for netns $i -- $pidfile"
71		sleep 0.5
72	done
73
74	tmux send-keys -t $session:0.0 'iw phy '$phy' set netns `cat '$pidfile'`' C-m
75
76	# wait for phy to exist in netns
77	while [[ -e /sys/class/ieee80211/$phy ]]; do
78		echo "Waiting for $phy to move to netns..."
79		sleep 0.5
80	done
81
82	# start mesh node
83	tmux send-keys -t $win '. func' C-m
84	tmux send-keys -t $win 'meshup-iw '$dev' diamond 2412 '$ip C-m
85
86	i=$((i+1))
87done
88winct=$i
89
90# start wmediumd
91win=$session:$((winct+1)).0
92winct=$((winct+1))
93tmux new-window -a -t $session -n wmediumd
94tmux send-keys -t $win '../wmediumd/wmediumd -c diamond.cfg' C-m
95
96# start iperf server on 10.10.10.13
97tmux send-keys -t $session:4 'iperf -s' C-m
98
99# enable monitor
100tmux send-keys -t $session:0 'ip link set hwsim0 up' C-m
101
102tmux select-window -t $session:1
103tmux send-keys -t $session:1 'ping -c 5 10.10.10.13' C-m
104tmux send-keys -t $session:1 'iperf -c 10.10.10.13 -i 5 -t 120'
105
106tmux attach
107