hostap/tests/hwsim/vm/inside.sh
Jouni Malinen eaf925df00 tests: Speed up tshark operations
Hide /usr/share/wireshark from hostfs to prevent tshark from loading all
the data from there since that can take significant amount of time and
is not really needed for the test cases. In addition, set HOME to point
to local tmpfs to avoid unnecessary references through hostfs.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2021-03-17 23:36:52 +02:00

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#!/bin/sh
# keep old /etc
mount tmpfs -t tmpfs /tmp
mkdir /tmp/etc
mount --bind /etc /tmp/etc
# mount all kinds of things
mount tmpfs -t tmpfs /etc
# we need our own /dev/rfkill, and don't want device access
mount tmpfs -t tmpfs /dev
# some sockets go into /var/run, and / is read-only
mount tmpfs -t tmpfs /var/run
mount proc -t proc /proc
mount sysfs -t sysfs /sys
# needed for tracing
mount debugfs -t debugfs /sys/kernel/debug
mkdir /tmp/wireshark-share
mount --bind /usr/share/wireshark /tmp/wireshark-share
mount tmpfs -t tmpfs /usr/share/wireshark
# for inside telnet
mkdir /dev/pts
mount devpts -t devpts /dev/pts
export PATH=/usr/sbin:$PATH
export HOME=/tmp
# reboot on any sort of crash
sysctl kernel.panic_on_oops=1
sysctl kernel.panic=1
# get extra command line variables from /proc/cmdline
TESTDIR=$(sed 's/.*testdir=\([^ ]*\) .*/\1/' /proc/cmdline)
TIMEWARP=$(sed 's/.*timewarp=\([^ ]*\) .*/\1/' /proc/cmdline)
EPATH=$(sed 's/.*EPATH=\([^ ]*\) .*/\1/' /proc/cmdline)
TELNET=$(sed 's/.*TELNET=\([^ ]*\) .*/\1/' /proc/cmdline)
ARGS=$(sed 's/.*ARGS=\([^ ]*\)\( \|$\).*/\1/' /proc/cmdline)
LOGDIR=$(sed 's/.*LOGDIR=\([^ ]*\)\( \|$\).*/\1/' /proc/cmdline)
# create /dev entries we need
mknod -m 660 /dev/ttyS0 c 4 64
mknod -m 666 /dev/ptmx c 5 2
mknod -m 660 /dev/random c 1 8
mknod -m 660 /dev/urandom c 1 9
mknod -m 666 /dev/null c 1 3
mknod -m 666 /dev/kmsg c 1 11
test -f /sys/class/misc/rfkill/dev && \
mknod -m 660 /dev/rfkill c $(cat /sys/class/misc/rfkill/dev | tr ':' ' ')
ln -s /proc/self/fd/0 /dev/stdin
ln -s /proc/self/fd/1 /dev/stdout
ln -s /proc/self/fd/2 /dev/stderr
echo "VM has started up" > /dev/ttyS0
# create dummy sudo - everything runs as uid 0
mkdir /tmp/bin
cat > /tmp/bin/sudo << EOF
#!/bin/bash
exec "\$@"
EOF
chmod +x /tmp/bin/sudo
# and put it into $PATH, as well as our extra-$PATH
export PATH=/tmp/bin:$EPATH:$PATH
# some tests assume adm/admin group(s) exist(s)
cat > /etc/group <<EOF
adm:x:0:
admin:x:0:
messagebus:x:106:
EOF
# root should exist
cat > /etc/passwd <<EOF
root:x:0:0:root:/tmp:/bin/bash
messagebus:x:102:106::/var/run/dbus:/bin/false
EOF
cat > /etc/ethertypes <<EOF
IPv4 0800 ip ip4
ARP 0806 ether-arp
IPv6 86DD ip6
EOF
cat > /etc/protocols <<EOF
ip 0 IP
icmp 1 ICMP
tcp 6 TCP
udp 17 UDP
ipv6-icmp 58 IPv6-ICMP
EOF
# we may need /etc/alternatives, at least on Debian-based systems
ln -s /tmp/etc/alternatives /etc/
# local network is needed for some tests
ip link set lo up
# create logs mountpoint and mount the logshare
mkdir /tmp/logs
if grep -q rootfstype=hostfs /proc/cmdline; then
mount -t hostfs none /tmp/logs -o $LOGDIR
else
mount -t 9p -o trans=virtio,rw logshare /tmp/logs
fi
# allow access to any outside directory (e.g. /tmp) we also have
mkdir /tmp/host
mount --bind / /tmp/host
if [ "$TIMEWARP" = "1" ] ; then
(
while sleep 1 ; do
date --set "@$(($(date +%s) + 19))"
done
) &
fi
echo hwsimvm > /proc/sys/kernel/hostname
echo 8 8 8 8 > /proc/sys/kernel/printk
cat > /tmp/bin/login <<EOF
#!/bin/sh
export PS1='\h:\w\$ '
exec bash
EOF
chmod +x /tmp/bin/login
if [ "$TELNET" = "1" ] ; then
ip link set eth0 up
ip addr add 172.16.0.15/24 dev eth0
which in.telnetd >/dev/null && (
while true ; do
in.telnetd -debug 23 -L /tmp/bin/login
done
) &
fi
# check if we're rebooting due to a kernel panic ...
if grep -q 'Kernel panic' /tmp/logs/console ; then
echo "KERNEL CRASHED!" >/dev/ttyS0
else
# finally run the tests
export USER=0
export LOGDIR=/tmp/logs
export DBFILE=$LOGDIR/results.db
export PREFILL_DB=y
# some tests need CRDA, install a simple uevent helper
# and preload the 00 domain it will have asked for already
echo $TESTDIR/vm/uevent.sh > /sys/kernel/uevent_helper
COUNTRY=00 crda
mkdir -p /var/run/dbus
touch /var/run/dbus/hwsim-test
chown messagebus.messagebus /var/run/dbus
dbus-daemon --config-file=$TESTDIR/vm/dbus.conf --fork
cd $TESTDIR
./run-all.sh --vm $(cat /tmp/host$ARGS) </dev/ttyS0 >/dev/ttyS0 2>&1
if test -d /sys/kernel/debug/gcov ; then
cp -ar /sys/kernel/debug/gcov /tmp/logs/
# these are broken as they're updated while being read ...
find /tmp/logs/gcov/ -wholename '*kernel/gcov/*' -print0 | xargs -0 rm
fi
#bash </dev/ttyS0 >/dev/ttyS0 2>&1
fi
# and shut down the machine again
halt -f -p