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#!/bin/bash
# test-ppp.sh:
#
# Test script that creates an netns and connect it with
# veth pairs. On the other end, it runs pppoe-server.
# It also creates a NetworkManager profile that can be activated.
#
# Usage:
#
# ./test-ppp.sh [setup]: create the setup. This implies a "cleanup"
# first.
# ./test-ppp.sh cleanup: cleanup the things that the script created.
set -e
export IFACE=net1
export IFACE_PEER=net1-x
export CON_NAME="ppp-$IFACE"
export NETNS=nm-ppp
export PPP_SERVICE=isp
export PPP_AUTH=pap
export PPP_USER=test-user
export PPP_PASSWD=test-passwd
export IP_PEER="192.168.133.6"
export IP_RANGE="192.168.133.100-130"
die() {
printf '%s\n' "$*" >&2
exit 1
}
do_cleanup() {
pkill -F "/tmp/nm-test-ppp-$IFACE.pid" pppoe-server &>/dev/null || :
rm -rf \
"/tmp/nm-test-ppp-$IFACE.pid" \
"/tmp/nm-test-ppp-allip-$IFACE" \
"/tmp/nm-test-ppp-pppoe-server-options-$IFACE" \
"/tmp/nm-test-ppp-$IFACE-$PPP_AUTH-secrets"
ip --netns "$NETNS" link delete "$IFACE_PEER" &>/dev/null || :
ip netns delete "$NETNS" &>/dev/null || :
nmcli connection delete id ppp-net1 || :
}
do_setup() {
do_cleanup
ip netns add "$NETNS"
ip --netns "$NETNS" link add "$IFACE" type veth peer "$IFACE_PEER"
ip --netns "$NETNS" link set "$IFACE_PEER" up
ip --netns "$NETNS" addr add "$IP_PEER/24" dev "$IFACE_PEER"
echo "$IP_RANGE" > "/tmp/nm-test-ppp-allip-$IFACE"
cat <<EOF > "/tmp/nm-test-ppp-pppoe-server-options-$IFACE"
require-$PPP_AUTH
lcp-echo-interval 10
lcp-echo-failure 2
ms-dns 8.8.8.8
ms-dns 8.8.4.4
netmask 255.255.255.0
defaultroute
noipdefault
usepeerdns
EOF
echo "$PPP_USER * $PPP_PASSWD $IP_PEER" > "/tmp/nm-test-ppp-$IFACE-$PPP_AUTH-secrets"
chmod 600 "/tmp/nm-test-ppp-$IFACE-$PPP_AUTH-secrets"
mkdir -p /etc/ppp
touch "/etc/ppp/$PPP_AUTH-secrets"
ip netns exec "$NETNS" bash -ex <(
cat <<'EOF'
mount -o bind "/tmp/nm-test-ppp-$IFACE-$PPP_AUTH-secrets" "/etc/ppp/$PPP_AUTH-secrets" &&
exec pppoe-server \
-X "/tmp/nm-test-ppp-$IFACE.pid" \
-S "$PPP_SERVICE" \
-C "$PPP_SERVICE" \
-L "$IP_PEER" \
-p "/tmp/nm-test-ppp-allip-$IFACE" \
-I "$IFACE_PEER" \
-O "/tmp/nm-test-ppp-pppoe-server-options-$IFACE"
EOF
) &
ip --netns "$NETNS" link set "$IFACE" netns $$
nmcli connection add \
type pppoe \
con-name "$CON_NAME" \
ifname "ppp-$IFACE" \
pppoe.parent "$IFACE" \
service "$PPP_SERVICE" \
username "$PPP_USER" \
password "$PPP_PASSWD" \
autoconnect no
}
CMD="${1-setup}"
case "$CMD" in
setup| \
cleanup)
"do_$CMD"
;;
*)
die "invalid command $1"
;;
esac
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