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|
#!/bin/sh
: ${FAKE_IP_STATE:=${PWD}/var/fake-ip-state}
not_implemented ()
{
echo "ip stub command: \"$1\" not implemented"
exit 127
}
case "$1" in
link)
case "$2" in
set)
iface="$3"
case "$4" in
up)
rm -f "${FAKE_IP_STATE}/interfaces-down/${iface}"
;;
down)
mkdir -p "${FAKE_IP_STATE}/interfaces-down"
touch "${FAKE_IP_STATE}/interfaces-down/${iface}"
;;
*)
not_implemented "$*"
esac
;;
*)
not_implemented "$1 $2"
esac
;;
addr)
case "$2" in
add)
shift 2
local=""
dev=""
brd=""
while [ -n "$1" ] ; do
case "$1" in
*.*.*.*/*)
local="$1" ; shift
;;
local)
local="$2" ; shift 2
;;
broadcast|brd)
# For now assume this is always '+'.
if [ "$2" != "+" ] ; then
not_implemented "addr add ... brd $2 ..."
fi
shift 2
;;
dev)
dev="$2" ; shift 2
;;
*)
not_implemented "addr add ... $1 ..."
esac
done
if [ -z "$dev" ] ; then
not_implemented "addr add (without dev)"
fi
mkdir -p "${FAKE_IP_STATE}/addresses"
pf="${FAKE_IP_STATE}/addresses/${dev}-primary"
sf="${FAKE_IP_STATE}/addresses/${dev}-secondary"
# We could lock here... but we should be the only ones
# playing around here with these stubs.
if [ ! -f "$pf" ] ; then
echo "$local" >"$pf"
elif grep -Fq "$local" "$pf" ; then
echo "RTNETLINK answers: File exists" >&2
exit 254
elif [ -f "$sf" ] && grep -Fq "$local" "$sf" ; then
echo "RTNETLINK answers: File exists" >&2
exit 254
else
echo "$local" >>"$sf"
fi
;;
delete|del)
shift 2
local=""
dev=""
while [ -n "$1" ] ; do
case "$1" in
*.*.*.*/*)
local="$1" ; shift
;;
local)
local="$2" ; shift 2
;;
dev)
dev="$2" ; shift 2
;;
*)
not_implemented "addr del ... $1 ..."
esac
done
if [ -z "$dev" ] ; then
not_implemented "addr del (without dev)"
fi
mkdir -p "${FAKE_IP_STATE}/addresses"
pf="${FAKE_IP_STATE}/addresses/${dev}-primary"
sf="${FAKE_IP_STATE}/addresses/${dev}-secondary"
# We could lock here... but we should be the only ones
# playing around here with these stubs.
if [ ! -f "$pf" ] ; then
echo "RTNETLINK answers: Cannot assign requested address" >&2
exit 254
elif grep -Fq "$local" "$pf" ; then
# Remove primaries AND SECONDARIES.
rm -f "$pf" "$sf"
elif [ -f "$sf" ] && grep -Fq "$local" "$sf" ; then
grep -Fv "$local" "$sf" >"${sf}.new"
mv "${sf}.new" "$sf"
else
echo "RTNETLINK answers: Cannot assign requested address" >&2
exit 254
fi
;;
show|list)
shift 2
dev=""
primary=true
secondary=true
while [ -n "$1" ] ; do
case "$1" in
dev)
dev="$2" ; shift 2
;;
# Do stupid things and stupid things will happen!
primary)
primary=true ; secondary=false ; shift
;;
secondary)
secondary=true ; primary=false ; shift
;;
*)
# Assume an interface name
dev="$1" ; shift 1
esac
done
devices="$dev"
if [ -z "$devices" ] ; then
# No device specified? Get all the primaries...
devices=$(ls "${FAKE_IP_STATE}/addresses/"*-primary 2>/dev/null | \
sed -e 's@.*/@@' -e 's@-primary$@@')
fi
calc_brd ()
{
case "${local#*/}" in
24)
brd="${local%.*}.255"
;;
*)
not_implemented "list ... fake bits other than 24: ${local#*/}"
esac
}
show_iface()
{
pf="${FAKE_IP_STATE}/addresses/${dev}-primary"
sf="${FAKE_IP_STATE}/addresses/${dev}-secondary"
mac=$(echo $dev | md5sum | sed -r -e 's@(..)(..)(..)(..)(..)(..).*@\1:\2:\3:\4:\5:\6@')
cat <<EOF
${n}: ${dev}: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether ${mac} brd ff:ff:ff:ff:ff:ff
EOF
if $primary && [ -r "$pf" ] ; then
read local <"$pf"
calc_brd
cat <<EOF
inet ${local} brd ${brd} scope global ${dev}
EOF
fi
if $secondary && [ -r "$sf" ] ; then
while read local ; do
calc_brd
cat <<EOF
inet ${local} brd ${brd} scope global secondary ${dev}
EOF
done <"$sf"
fi
cat <<EOF
valid_lft forever preferred_lft forever
EOF
}
n=1
for dev in $devices ; do
show_iface
n=$(($n + 1))
done
;;
*)
not_implemented "$1 $2"
esac
;;
*)
not_implemented "$1"
esac
exit 0
|
