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|
package netlink
import (
"net"
"syscall"
"testing"
"time"
)
func TestRouteAddDel(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
// get loopback interface
link, err := LinkByName("lo")
if err != nil {
t.Fatal(err)
}
// bring the interface up
if err := LinkSetUp(link); err != nil {
t.Fatal(err)
}
// add a gateway route
dst := &net.IPNet{
IP: net.IPv4(192, 168, 0, 0),
Mask: net.CIDRMask(24, 32),
}
ip := net.IPv4(127, 1, 1, 1)
route := Route{LinkIndex: link.Attrs().Index, Dst: dst, Src: ip}
if err := RouteAdd(&route); err != nil {
t.Fatal(err)
}
routes, err := RouteList(link, FAMILY_V4)
if err != nil {
t.Fatal(err)
}
if len(routes) != 1 {
t.Fatal("Route not added properly")
}
dstIP := net.IPv4(192, 168, 0, 42)
routeToDstIP, err := RouteGet(dstIP)
if err != nil {
t.Fatal(err)
}
if len(routeToDstIP) == 0 {
t.Fatal("Default route not present")
}
if err := RouteDel(&route); err != nil {
t.Fatal(err)
}
routes, err = RouteList(link, FAMILY_V4)
if err != nil {
t.Fatal(err)
}
if len(routes) != 0 {
t.Fatal("Route not removed properly")
}
}
func TestRouteAddIncomplete(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
// get loopback interface
link, err := LinkByName("lo")
if err != nil {
t.Fatal(err)
}
// bring the interface up
if err = LinkSetUp(link); err != nil {
t.Fatal(err)
}
route := Route{LinkIndex: link.Attrs().Index}
if err := RouteAdd(&route); err == nil {
t.Fatal("Adding incomplete route should fail")
}
}
func expectRouteUpdate(ch <-chan RouteUpdate, t uint16, dst net.IP) bool {
for {
timeout := time.After(time.Minute)
select {
case update := <-ch:
if update.Type == t && update.Route.Dst.IP.Equal(dst) {
return true
}
case <-timeout:
return false
}
}
}
func TestRouteSubscribe(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
ch := make(chan RouteUpdate)
done := make(chan struct{})
defer close(done)
if err := RouteSubscribe(ch, done); err != nil {
t.Fatal(err)
}
// get loopback interface
link, err := LinkByName("lo")
if err != nil {
t.Fatal(err)
}
// bring the interface up
if err = LinkSetUp(link); err != nil {
t.Fatal(err)
}
// add a gateway route
dst := &net.IPNet{
IP: net.IPv4(192, 168, 0, 0),
Mask: net.CIDRMask(24, 32),
}
ip := net.IPv4(127, 1, 1, 1)
route := Route{LinkIndex: link.Attrs().Index, Dst: dst, Src: ip}
if err := RouteAdd(&route); err != nil {
t.Fatal(err)
}
if !expectRouteUpdate(ch, syscall.RTM_NEWROUTE, dst.IP) {
t.Fatal("Add update not received as expected")
}
if err := RouteDel(&route); err != nil {
t.Fatal(err)
}
if !expectRouteUpdate(ch, syscall.RTM_DELROUTE, dst.IP) {
t.Fatal("Del update not received as expected")
}
}
func TestRouteExtraFields(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
// get loopback interface
link, err := LinkByName("lo")
if err != nil {
t.Fatal(err)
}
// bring the interface up
if err = LinkSetUp(link); err != nil {
t.Fatal(err)
}
// add a gateway route
dst := &net.IPNet{
IP: net.IPv4(1, 1, 1, 1),
Mask: net.CIDRMask(32, 32),
}
src := net.IPv4(127, 3, 3, 3)
route := Route{
LinkIndex: link.Attrs().Index,
Dst: dst,
Src: src,
Scope: syscall.RT_SCOPE_LINK,
Priority: 13,
Table: syscall.RT_TABLE_MAIN,
Type: syscall.RTN_UNICAST,
Tos: 14,
}
if err := RouteAdd(&route); err != nil {
t.Fatal(err)
}
routes, err := RouteListFiltered(FAMILY_V4, &Route{
Dst: dst,
Src: src,
Scope: syscall.RT_SCOPE_LINK,
Table: syscall.RT_TABLE_MAIN,
Type: syscall.RTN_UNICAST,
Tos: 14,
}, RT_FILTER_DST|RT_FILTER_SRC|RT_FILTER_SCOPE|RT_FILTER_TABLE|RT_FILTER_TYPE|RT_FILTER_TOS)
if err != nil {
t.Fatal(err)
}
if len(routes) != 1 {
t.Fatal("Route not added properly")
}
if routes[0].Scope != syscall.RT_SCOPE_LINK {
t.Fatal("Invalid Scope. Route not added properly")
}
if routes[0].Priority != 13 {
t.Fatal("Invalid Priority. Route not added properly")
}
if routes[0].Table != syscall.RT_TABLE_MAIN {
t.Fatal("Invalid Scope. Route not added properly")
}
if routes[0].Type != syscall.RTN_UNICAST {
t.Fatal("Invalid Type. Route not added properly")
}
if routes[0].Tos != 14 {
t.Fatal("Invalid Tos. Route not added properly")
}
}
|
