github.com/Prakhar-Agarwal-byte/moby@v0.0.0-20231027092010-a14e3e8ab87e/libnetwork/drivers/bridge/setup_ipv6_linux_test.go (about)

     1  package bridge
     2  
     3  import (
     4  	"bytes"
     5  	"fmt"
     6  	"net"
     7  	"os"
     8  	"testing"
     9  
    10  	"github.com/Prakhar-Agarwal-byte/moby/internal/testutils/netnsutils"
    11  	"github.com/vishvananda/netlink"
    12  )
    13  
    14  func TestSetupIPv6(t *testing.T) {
    15  	defer netnsutils.SetupTestOSContext(t)()
    16  
    17  	nh, err := netlink.NewHandle()
    18  	if err != nil {
    19  		t.Fatal(err)
    20  	}
    21  	defer nh.Close()
    22  
    23  	config, br := setupTestInterface(t, nh)
    24  	if err := setupBridgeIPv6(config, br); err != nil {
    25  		t.Fatalf("Failed to setup bridge IPv6: %v", err)
    26  	}
    27  
    28  	procSetting, err := os.ReadFile(fmt.Sprintf("/proc/sys/net/ipv6/conf/%s/disable_ipv6", config.BridgeName))
    29  	if err != nil {
    30  		t.Fatalf("Failed to read disable_ipv6 kernel setting: %v", err)
    31  	}
    32  
    33  	if expected := []byte("0\n"); !bytes.Equal(expected, procSetting) {
    34  		t.Fatalf("Invalid kernel setting disable_ipv6: expected %q, got %q", string(expected), string(procSetting))
    35  	}
    36  
    37  	addrsv6, err := nh.AddrList(br.Link, netlink.FAMILY_V6)
    38  	if err != nil {
    39  		t.Fatalf("Failed to list device IPv6 addresses: %v", err)
    40  	}
    41  
    42  	var found bool
    43  	for _, addr := range addrsv6 {
    44  		if bridgeIPv6.String() == addr.IPNet.String() {
    45  			found = true
    46  			break
    47  		}
    48  	}
    49  
    50  	if !found {
    51  		t.Fatalf("Bridge device does not have requested IPv6 address %v", bridgeIPv6)
    52  	}
    53  }
    54  
    55  func TestSetupGatewayIPv6(t *testing.T) {
    56  	defer netnsutils.SetupTestOSContext(t)()
    57  
    58  	_, nw, _ := net.ParseCIDR("2001:db8:ea9:9abc:ffff::/80")
    59  	gw := net.ParseIP("2001:db8:ea9:9abc:ffff::254")
    60  
    61  	config := &networkConfiguration{
    62  		BridgeName:         DefaultBridgeName,
    63  		AddressIPv6:        nw,
    64  		DefaultGatewayIPv6: gw,
    65  	}
    66  
    67  	nh, err := netlink.NewHandle()
    68  	if err != nil {
    69  		t.Fatal(err)
    70  	}
    71  	defer nh.Close()
    72  
    73  	br := &bridgeInterface{nlh: nh}
    74  
    75  	if err := setupGatewayIPv6(config, br); err != nil {
    76  		t.Fatalf("Set Default Gateway failed: %v", err)
    77  	}
    78  
    79  	if !gw.Equal(br.gatewayIPv6) {
    80  		t.Fatalf("Set Default Gateway failed. Expected %v, Found %v", gw, br.gatewayIPv6)
    81  	}
    82  }