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Diffstat (limited to 'pkg/ipstack/ipstack_test.go')
-rw-r--r--pkg/ipstack/ipstack_test.go301
1 files changed, 301 insertions, 0 deletions
diff --git a/pkg/ipstack/ipstack_test.go b/pkg/ipstack/ipstack_test.go
new file mode 100644
index 0000000..e782f67
--- /dev/null
+++ b/pkg/ipstack/ipstack_test.go
@@ -0,0 +1,301 @@
+package ipstack
+
+import (
+ "fmt"
+ "net/netip"
+ "testing"
+)
+
+//func TestInitialize(t *testing.T) {
+// lnxFilePath := "../../doc-example/r2.lnx"
+// err := Initialize(lnxFilePath)
+// if err != nil {
+// t.Error(err)
+// }
+// fmt.Printf("Interfaces:\n%s\n\n", SprintInterfaces())
+// fmt.Printf("Neighbors:\n%s\n", SprintNeighbors())
+// fmt.Printf("RoutingTable:\n%s\n", SprintRoutingTable())
+//
+// fmt.Println("TestInitialize successful")
+// t.Cleanup(func() { CleanUp() })
+//}
+//
+//func TestInterfaceUpThenDown(t *testing.T) {
+// lnxFilePath := "../../doc-example/r2.lnx"
+// err := Initialize(lnxFilePath)
+// if err != nil {
+// t.Error(err)
+// }
+//
+// iface, err := GetInterfaceByName("if0")
+// if err != nil {
+// t.Error(err)
+// }
+//
+// InterfaceUp(iface)
+// if iface.State == false {
+// t.Error("iface state should be true")
+// }
+//
+// fmt.Printf("Interfaces:\n%s\n", SprintInterfaces())
+//
+// time.Sleep(5 * time.Millisecond) // allow time to print
+//
+// InterfaceDown(iface)
+// if iface.State == true {
+// t.Error("iface state should be false")
+// }
+//
+// time.Sleep(5 * time.Millisecond) // allow time to print
+//
+// fmt.Printf("Interfaces:\n%s\n", SprintInterfaces())
+//
+// fmt.Println("TestInterfaceUpThenDown successful")
+// t.Cleanup(func() { CleanUp() })
+//}
+//
+//func TestInterfaceUpThenDownTwice(t *testing.T) {
+// lnxFilePath := "../../doc-example/r2.lnx"
+// err := Initialize(lnxFilePath)
+// if err != nil {
+// t.Error(err)
+// }
+//
+// iface, err := GetInterfaceByName("if0")
+// if err != nil {
+// t.Error(err)
+// }
+//
+// InterfaceUp(iface)
+// if iface.State == false {
+// t.Error("iface state should be true")
+// }
+//
+// fmt.Printf("Interfaces:\n%s\n", SprintInterfaces())
+//
+// time.Sleep(5 * time.Millisecond) // allow time to print
+//
+// fmt.Println("putting interface down")
+// InterfaceDown(iface)
+// if iface.State == true {
+// t.Error("iface state should be false")
+// }
+//
+// time.Sleep(3 * time.Millisecond)
+//
+// fmt.Println("putting interface back up for 3 iterations")
+// InterfaceUp(iface)
+// if iface.State == false {
+// t.Error("iface state should be true")
+// }
+// time.Sleep(3 * time.Millisecond) // allow time to print
+//
+// fmt.Println("putting interface down")
+// InterfaceDown(iface)
+// if iface.State == true {
+// t.Error("iface state should be false")
+// }
+//
+// time.Sleep(5 * time.Millisecond) // allow time to print
+//
+// fmt.Printf("Interfaces:\n%s\n", SprintInterfaces())
+//
+// fmt.Println("TestInterfaceUpThenDownTwice successful")
+// t.Cleanup(func() { CleanUp() })
+//}
+//
+//func TestSendIPToNeighbor(t *testing.T) {
+// lnxFilePath := "../../doc-example/r2.lnx"
+// err := Initialize(lnxFilePath)
+// if err != nil {
+// t.Error(err)
+// }
+//
+// // get the first neighbor of this interface
+// iface, err := GetInterfaceByName("if0")
+// if err != nil {
+// t.Error(err)
+// }
+// neighbors, err := GetNeighborsToInterface("if0")
+// if err != nil {
+// t.Error(err)
+// }
+//
+// // setup a neighbor listener socket
+// testNeighbor := neighbors[0]
+// // close the socket so we can listen on it
+// err = testNeighbor.SendSocket.Close()
+// if err != nil {
+// t.Error(err)
+// }
+//
+// fmt.Printf("Interfaces:\n%s\n", SprintInterfaces())
+// fmt.Printf("Neighbors:\n%s\n", SprintNeighbors())
+//
+// listenString := testNeighbor.UdpAddr.String()
+// fmt.Println("listening on " + listenString)
+// listenAddr, err := net.ResolveUDPAddr("udp4", listenString)
+// if err != nil {
+// t.Error(err)
+// }
+// recvSocket, err := net.ListenUDP("udp4", listenAddr)
+// if err != nil {
+// t.Error(err)
+// }
+// testNeighbor.SendSocket = *recvSocket
+//
+// sent := false
+// go func() {
+// buffer := make([]byte, MAX_IP_PACKET_SIZE)
+// fmt.Println("wating to read from UDP socket")
+// _, sourceAddr, err := recvSocket.ReadFromUDP(buffer)
+// if err != nil {
+// t.Error(err)
+// }
+// fmt.Println("read from UDP socket")
+// hdr, err := ipv4header.ParseHeader(buffer)
+// if err != nil {
+// t.Error(err)
+// }
+// headerSize := hdr.Len
+// headerBytes := buffer[:headerSize]
+// checksumFromHeader := uint16(hdr.Checksum)
+// computedChecksum := ValidateChecksum(headerBytes, checksumFromHeader)
+//
+// var checksumState string
+// if computedChecksum == checksumFromHeader {
+// checksumState = "OK"
+// } else {
+// checksumState = "FAIL"
+// }
+// message := buffer[headerSize:]
+// fmt.Printf("Received IP packet from %s\nHeader: %v\nChecksum: %s\nMessage: %s\n",
+// sourceAddr.String(), hdr, checksumState, string(message))
+// if err != nil {
+// t.Error(err)
+// }
+//
+// sent = true
+// }()
+//
+// time.Sleep(10 * time.Millisecond)
+//
+// // send a message to the neighbor
+// fmt.Printf("sending message to neighbor\t%t\n", sent)
+// err = SendIP(*iface, *testNeighbor, 0, []byte("You are my firest neighbor!"))
+// if err != nil {
+// t.Error(err)
+// }
+//
+// fmt.Printf("SENT message to neighbor\t%t\n", sent)
+// // give a little time for the message to be sent
+// time.Sleep(1000 * time.Millisecond)
+// if !sent {
+// t.Error("Message not sent")
+// t.Fail()
+// }
+//
+// fmt.Println("TestSendIPToNeighbor successful")
+// t.Cleanup(func() { CleanUp() })
+//}
+//
+//func TestRecvIP(t *testing.T) {
+// lnxFilePath := "../../doc-example/r2.lnx"
+// err := Initialize(lnxFilePath)
+// if err != nil {
+// t.Error(err)
+// }
+//
+// // get the first neighbor of this interface to RecvIP from
+// iface, err := GetInterfaceByName("if0")
+// if err != nil {
+// t.Error(err)
+// }
+// InterfaceUp(iface)
+//
+// // setup a random socket to send an ip packet from
+// listenAddr, err := net.ResolveUDPAddr("udp4", "127.0.0.1:6969")
+// sendSocket, err := net.ListenUDP("udp4", listenAddr)
+//
+// // send a message to the neighbor
+// ifaceAsNeighbor := Neighbor{
+// VipAddr: iface.IpPrefix.Addr(),
+// UdpAddr: iface.UdpAddr,
+// SendSocket: iface.RecvSocket,
+// SocketChannel: iface.SocketChannel,
+// }
+// fakeIface := Interface{
+// Name: "if69",
+// IpPrefix: netip.MustParsePrefix("10.69.0.1/24"),
+// UdpAddr: netip.MustParseAddrPort("127.0.0.1:6969"),
+// RecvSocket: net.UDPConn{},
+// SocketChannel: nil,
+// State: true,
+// }
+// err = SendIP(fakeIface, ifaceAsNeighbor, 0, []byte("hello"))
+// if err != nil {
+// return
+// }
+//
+// time.Sleep(10 * time.Millisecond)
+//
+// // TODO: potenially make this a channel, so it actually checks values.
+// // For now, you must read the message from the console.
+//
+// err = sendSocket.Close()
+// if err != nil {
+// t.Error(err)
+// }
+// t.Cleanup(func() { CleanUp() })
+//}
+
+func TestIntersect(t *testing.T) {
+ net1 := netip.MustParsePrefix("10.0.0.0/24")
+ net2 := netip.MustParsePrefix("1.1.1.2/24")
+ net3 := netip.MustParsePrefix("1.0.0.1/24")
+ net4 := netip.MustParsePrefix("0.0.0.0/0") // default route
+ net5 := netip.MustParsePrefix("10.2.0.3/32")
+
+ res00 := intersect(net5, net1)
+ if res00 {
+ t.Error("net5 -> net1 should not intersect")
+ t.Fail()
+ }
+ res01 := intersect(net5, net4)
+ if !res01 {
+ t.Error("net5 -> net4 should intersect")
+ t.Fail()
+ }
+
+ res6 := intersect(net1, net3)
+ if res6 {
+ t.Error("net1 and net3 should not intersect")
+ t.Fail()
+ }
+ res2 := intersect(net2, net3)
+ if res2 {
+ t.Error("net2 and net3 should not intersect")
+ t.Fail()
+ }
+ res3 := intersect(net1, net4)
+ if !res3 {
+ t.Error("net1 and net4 should intersect")
+ t.Fail()
+ }
+ res4 := intersect(net2, net4)
+ if !res4 {
+ t.Error("net2 and net4 should intersect")
+ t.Fail()
+ }
+ res5 := intersect(net3, net4)
+ if !res5 {
+ t.Error("net3 and net4 should intersect")
+ t.Fail()
+ }
+
+ fmt.Println("TestIntersect successful")
+}
+
+func intersect(n1, n2 netip.Prefix) bool {
+ return n1.Overlaps(n2)
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-10-06 15:10:44 +0000