src/net: let init_next_gen init new generation with ifaces

The (optional) interface list represent the expected state in the new
generation.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/net/test/bridge-lag.sh

@@ -51,10 +51,7 @@ assert_lag_ports lag0 true eth4 eth5
 say "Verify moving a port from lag0 to br0"
 
 del_lagport lag0 eth4
-
-init_next_gen
-create_iface_data eth4
-create_iface_data br0
+init_next_gen eth0 eth1 eth2 eth3 eth4 eth5 lag0 br0 vlan1
 add_brport br0 eth4
 
 netdo

src/net/test/bridge.sh

@@ -21,8 +21,7 @@ assert_iface br0
 ################################################
 sep
 say "Verify add another bridge port (eth3)"
-init_next_gen
-create_iface_data br0
+init_next_gen eth0 eth1 eth2 br0
 
 create_iface eth3
 add_brport br0 eth3
@@ -37,9 +36,7 @@ sep
 say "Verify delete a bridge port (eth1)"
 del_brport br0 eth1
 
-init_next_gen
-create_iface_data br0
-create_iface_data eth1
+init_next_gen eth0 eth2 eth3 br0
 
 netdo
 

src/net/test/lib.sh

@@ -100,11 +100,17 @@ trapit()
     done
 }
 
+# shellcheck disable=SC2120
 init_next_gen()
 {
     _=$((gen += 1))
     mkdir -p "$NET_DIR/$gen"
     echo $gen > "$NET_DIR/next"
+
+    # shellcheck disable=SC2068
+    for iface in $@; do
+	create_iface_data "$iface"
+    done
 }
 
 setup()

src/net/test/three-independent.sh

@@ -20,9 +20,7 @@ assert_iface eth2 10.0.2.1/24
 sep
 say "Verify removal of an interface"
 remove_iface eth1
-init_next_gen
-create_iface_data eth0
-create_iface_data eth2
+init_next_gen eth0 eth2
 
 netdo