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#!/bin/false
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mach=$(basename $(dirname "$0"))
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netns=netns
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nethorror_root="`pwd`" # and hope?
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warn() {
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echo >&2 "Warning:" "$@"
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}
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die() {
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echo >&2 "DIE:" "$@"
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exit 42
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}
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ensure_started() {
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test -e state/$mach/$netns || machines/$mach/start.sh
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}
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setup_for_router4() {
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sysctl net.ipv4.conf.all.forwarding=1
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}
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setup_for_router6() {
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sysctl net.ipv6.conf.all.forwarding=1
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}
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setup_for_router() {
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setup_for_router4
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setup_for_router6
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}
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attach() {
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machines/$mach/attach.sh "$@"
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}
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setup_statedir() {
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dir="state/$mach"
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mkdir "$dir"
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for ns in $namespaces; do
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nsfile="${ns#*=}"
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touch "$nsfile"
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done
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}
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bridge_name() {
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echo "br_$1"
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}
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make_bridge() {
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br="$(bridge_name "$mach")"
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ip link add name "$br" type bridge
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ip link set dev "$br" up
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}
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veth_to_bridge() {
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ifname="$1"
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br_raw="$2"
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if test "$#" -gt 2; then
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ve_br_orig="$3"
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else
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ve_br_orig="ve_${mach}_${br_raw}"
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fi
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br="$(bridge_name "$br_raw")"
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ve_br="${ve_br_orig::15}"
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test "$ve_br" != "$ve_br_orig" && warn "interface name $ve_br_orig shortened to $ve_br"
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ip link show dev "$ve_br" >/dev/null 2>&1 && die "interface $ve_br already exists!"
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ip link add name "$ifname" type veth peer "$ve_br"
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ip link set dev "$ve_br" master "$br"
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ip link set dev "$ve_br" up
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ip link set dev "$ifname" netns ./state/$mach/netns # FIXME: hardcoded
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}
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