always use iproute2 on linux

lib/ip.bash

@@ -8,17 +8,11 @@ add_ip6(){
   local interface=$1
   local ip=$2
   local prefixlen=$3
-  if has ifconfig; then
+  if has ip; then
-    if [[ "$OSTYPE" == "linux-gnu" ]]; then
+    _add_ip_linux "$ip" "$prefixlen" "$interface"
-      ifconfig "$interface" inet6 del "$ip/$prefixlen" || true
+  elif has ifconfig; then
-      ifconfig "$interface" inet6 add "$ip/$prefixlen"
-    else
     ifconfig "$interface" inet6 del "$ip" prefixlen "$prefixlen" || true
     ifconfig "$interface" inet6 add "$ip" prefixlen "$prefixlen"
-    fi
-  elif has ip; then
-    ip addr del "$ip/$prefixlen" dev "$interface" || true
-    ip addr add "$ip/$prefixlen" dev "$interface"
   else
     die "no suitable program found to configure the network interface, need iproute2 or ifconfig"
   fi
@@ -28,12 +22,19 @@ add_ip4() {
   local interface=$1
   local ip=$2
   local netmask=$3
-  if has ifconfig; then
+  if has ip; then
-    ifconfig "$interface" "$ip" netmask "$netmask"
-  elif has ip; then
     local cidr="$(mask2cidr $netmask)"
-    ip addr add "$ip/$cidr" dev "$interface"
+    _add_ip_linux "$ip" "$cidr" "$interface"
+  elif has ifconfig; then
+    ifconfig "$interface" del "$ip" netmask "$netmask" || true
+    ifconfig "$interface" add "$ip" netmask "$netmask"
   else
     die "no suitable program found to set ip address, need iproute2 or ifconfig"
   fi
 }
+
+_add_ip_linux() {
+  ip addr del "$1/$2" dev "$3" || true
+  ip addr add "$1/$2" dev "$3"
+}
+

lib/mac.bash

@@ -1,23 +1,30 @@
 set_mac() {
   local interface=$1
   local mac_address=$2
-  if has ifconfig; then
+  if has ip; then
+    current_mac=$(ip addr show dev evenet | awk '/link\/ether/ { print $2 }')
+    if [[ "${current_mac,,}" == "${mac_address,,}" ]]; then
+      return
+    fi
+
+    ip link set dev "$interface" down
+    ip link set dev "$interface" address "$mac_address"
+    ip link set dev "$interface" up
+  elif has ifconfig; then
     current_mac=$(ifconfig "$interface" | awk '/ether/ {print $2}')
     if [[ "${current_mac,,}" == "${mac_address,,}" ]]; then
       return
     fi
 
     ifconfig "$interface" down
-    if [[ "$OSTYPE" == "linux-gnu" ]]; then
+    if [[ "$OSTYPE" == "freebsd"* ]]; then
-      ifconfig "$interface" hw ether "$mac_address"
+      ifconfig "$interface" link "$mac_address"
+    elif [[ "$OSTYPE" == "darwin"* ]]; then
+      ifconfig "$interface" lladdr "$mac_address"
     else
       ifconfig "$interface" ether "$mac_address"
     fi
     ifconfig "$interface" up
-  elif has ip; then
-    ip link set dev "$interface" down
-    ip link set dev "$interface" address "$mac_address"
-    ip link set dev "$interface" up
   else
     die "no suitable program found to configure the network interface, need iproute2 or ifconfig"
   fi

lib/route.bash

@@ -5,17 +5,12 @@ add_route4() {
   local netmask="$4"
   local cidr="$(mask2cidr $netmask)"
 
-  if has route; then
+  if has ip; then
-    if [[ "$OSTYPE" == "linux-gnu" ]]; then
-      route -n del -net "$subnet" "$gateway" netmask "$netmask" "$interface" || true
-      route -n add -net "$subnet" "$gateway" netmask "$netmask" "$interface"
-    else
-      route -n del -net "$subnet/$prefixlen" "$gateway" || true
-      route -n add -net "$subnet/$prefixlen" "$gateway"
-    fi
-  elif has ip; then
     ip route del "$subnet/$cidr" via "$gateway" dev "$interface" || true
     ip route add "$subnet/$cidr" via "$gateway" dev "$interface"
+  elif has route; then
+    route -n del -net "$subnet/$prefixlen" "$gateway" || true
+    route -n add -net "$subnet/$prefixlen" "$gateway"
   else
     die "no suitable program found to set routes, need iproute2 or ifconfig"
   fi
@@ -27,20 +22,15 @@ add_route6() {
   local gateway="$3"
   local prefixlen="$4"
 
+  if has ip; then
+    ip route del "$subnet/$prefixlen" via "$gateway" dev "$interface" || true
+    ip route add "$subnet/$prefixlen" via "$gateway" dev "$interface"
   if has route; then
-    if [[ "$OSTYPE" == "linux-gnu" ]]; then
-      route -n del -A inet6 "$subnet/$prefixlen" gw "$gateway" "$interface" || true
-      route -n add -A inet6 "$subnet/$prefixlen" gw "$gateway" "$interface"
-    else
     if [[ "$gateway" == fe80* ]]; then
       gateway="$gateway%$interface"
     fi
     route -n add -inet6 "$network" "$gateway" -prefixlen "$prefixlen" || true
     route -n add -inet6 "$network" "$gateway" -prefixlen "$prefixlen"
-    fi
-  elif has ip; then
-    ip route del "$subnet/$prefixlen" via "$gateway" dev "$interface" || true
-    ip route add "$subnet/$prefixlen" via "$gateway" dev "$interface"
   else
     die "no suitable program found to set routes, need iproute2 or ifconfig"
   fi