98 lines
1.8 KiB
Bash
Executable File
98 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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# parse interface configuration tuples:
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# iface:proto[:ipv4addr/netmask[:ipv4gw]]
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# and write it down as intended
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fatal() { echo "error: $*" >&2; exit 1; }
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# simple etcnet configurations are also picked up by NM
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if [ -n "$GLOBAL_NMCTL" ]; then
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NMCTL="$GLOBAL_NMCTL"
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else
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if type -t NetworkManager >&/dev/null ||
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type -t connmand >&/dev/null; then
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NMCTL=yes
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else
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NMCTL=no
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fi
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fi
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ETCNET_IFDIR="/etc/net/ifaces"
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SYSTEMD_IFDIR="/etc/systemd/network"
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write_iface() {
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case "$proto" in
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dhcp)
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;;
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static)
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[ -n "$ipv4addr" ] || fatal "ipv4addr missing"
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;;
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*)
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fatal "unknown proto value: $proto"
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;;
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esac
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[ -d "$ETCNET_IFDIR" ] && write_etcnet_iface ||:
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[ -d "$SYSTEMD_IFDIR" ] && write_systemd_iface ||:
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}
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# these use global variables
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write_etcnet_iface() {
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dir="$ETCNET_IFDIR/$iface"
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mkdir -p "$dir"
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append=
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case "$proto" in
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dhcp)
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append="DHCP_TIMEOUT=$GLOBAL_NET_ETH_TIMEOUT"
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;;
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static)
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echo "$ipv4addr" > "$dir/ipv4address"
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[ -z "$ipv4gw" ] ||
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echo "default via $ipv4gw" > "$dir/ipv4route"
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;;
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esac
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{
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echo "TYPE=eth"
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echo "BOOTPROTO=$proto"
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echo "NM_CONTROLLED=$NMCTL"
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echo "DISABLED=$NMCTL"
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echo "#USE_IFPLUGD=yes"
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[ -z "$append" ] || echo "$append"
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} > "$dir/options"
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}
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write_systemd_iface() {
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case "$proto" in
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dhcp)
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echo "[Match]"
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echo "Name=$iface"
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echo
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echo "[Network]"
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echo "DHCP=yes"
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echo
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echo "[DHCP]"
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echo "UseMTU=yes"
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echo "UseDomains=yes"
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echo "UseNTP=yes"
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echo
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;;
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static)
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echo "[Match]"
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echo "Name=$iface"
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echo
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echo "[Network]"
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echo "Address=$ipv4addr"
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[ -z "$ipv4gw" ] ||
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echo "Gateway=$ipv4gw"
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echo "LinkLocalAddressing=no"
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;;
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esac > "$SYSTEMD_IFDIR/$iface.network"
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}
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[ -z "$GLOBAL_NET_ETH" ] ||
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echo "$GLOBAL_NET_ETH" \
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| tr ' ' '\n' \
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| while IFS=':' read iface proto ipv4addr ipv4gw; do
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[ -n "$iface" -a -n "$proto" ] || continue
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write_iface
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done
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