Golang net.CIDRMask函數代碼示例

本文整理匯總了Golang中net.CIDRMask函數的典型用法代碼示例。如果您正苦於以下問題：Golang CIDRMask函數的具體用法？Golang CIDRMask怎麽用？Golang CIDRMask使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。

在下文中一共展示了CIDRMask函數的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: TestSetupFixedCIDRv4

func TestSetupFixedCIDRv4(t *testing.T) {
	defer netutils.SetupTestNetNS(t)()

	config := &NetworkConfiguration{
		BridgeName:  DefaultBridgeName,
		AddressIPv4: &net.IPNet{IP: net.ParseIP("192.168.1.1"), Mask: net.CIDRMask(16, 32)},
		FixedCIDR:   &net.IPNet{IP: net.ParseIP("192.168.2.0"), Mask: net.CIDRMask(24, 32)}}
	br := &bridgeInterface{}

	if err := setupDevice(config, br); err != nil {
		t.Fatalf("Bridge creation failed: %v", err)
	}
	if err := setupBridgeIPv4(config, br); err != nil {
		t.Fatalf("Assign IPv4 to bridge failed: %v", err)
	}

	if err := setupFixedCIDRv4(config, br); err != nil {
		t.Fatalf("Failed to setup bridge FixedCIDRv4: %v", err)
	}

	if ip, err := ipAllocator.RequestIP(config.FixedCIDR, nil); err != nil {
		t.Fatalf("Failed to request IP to allocator: %v", err)
	} else if expected := "192.168.2.1"; ip.String() != expected {
		t.Fatalf("Expected allocated IP %s, got %s", expected, ip)
	}
}

開發者ID:choldrim，項目名稱:docker，代碼行數:26，代碼來源:setup_fixedcidrv4_test.go

示例2: validateRoutes

func validateRoutes(t *testing.T, routes []plugin.Route) {
	expected := []plugin.Route{
		plugin.Route{
			Dst: net.IPNet{
				IP:   net.IPv4(10, 0, 0, 0),
				Mask: net.CIDRMask(8, 32),
			},
			GW: net.IPv4(10, 1, 2, 3),
		},
		plugin.Route{
			Dst: net.IPNet{
				IP:   net.IPv4(192, 168, 1, 0),
				Mask: net.CIDRMask(24, 32),
			},
			GW: net.IPv4(192, 168, 2, 3),
		},
	}

	if len(routes) != len(expected) {
		t.Fatalf("wrong length slice; expected %v, got %v", len(expected), len(routes))
	}

	for i := 0; i < len(routes); i++ {
		a := routes[i]
		e := expected[i]

		if a.Dst.String() != e.Dst.String() {
			t.Errorf("route.Dst mismatch: expected %v, got %v", e.Dst, a.Dst)
		}

		if !a.GW.Equal(e.GW) {
			t.Errorf("route.GW mismatch: expected %v, got %v", e.GW, a.GW)
		}
	}
}

開發者ID:NeilW，項目名稱:cni，代碼行數:35，代碼來源:options_test.go

示例3: prepareNetworks

func prepareNetworks(addrs string) (networks []*net.IPNet) {
	for _, n := range strings.Fields(addrs) {
		n = strings.TrimSpace(n)
		if strings.Contains(n, "/") {
			if _, network, err := net.ParseCIDR(n); err == nil {
				networks = append(networks, network)
			} else {
				log.Warn("authenticationMW prepare networks error", "err", err, "net", n)
			}
		} else {
			if ip := net.ParseIP(n); ip != nil {
				var mask net.IPMask
				if len(ip) == 4 { // ipv4
					mask = net.CIDRMask(32, 32)
				} else {
					mask = net.CIDRMask(128, 128)
				}
				network := &net.IPNet{ip, mask}
				networks = append(networks, network)
			} else {
				log.Warn("authenticationMW prepare ip error", "net", n)
			}
		}
	}
	log.Debug("prepareNetworks", "networks", networks, "inp", addrs)
	return
}

開發者ID:KarolBedkowski，項目名稱:secproxy，代碼行數:27，代碼來源:proxy.go

示例4: TestSetupBadFixedCIDRv4

func TestSetupBadFixedCIDRv4(t *testing.T) {
	defer netutils.SetupTestNetNS(t)()

	config := &NetworkConfiguration{
		BridgeName:  DefaultBridgeName,
		AddressIPv4: &net.IPNet{IP: net.ParseIP("192.168.1.1"), Mask: net.CIDRMask(24, 32)},
		FixedCIDR:   &net.IPNet{IP: net.ParseIP("192.168.2.0"), Mask: net.CIDRMask(24, 32)}}
	br := &bridgeInterface{}

	if err := setupDevice(config, br); err != nil {
		t.Fatalf("Bridge creation failed: %v", err)
	}
	if err := setupBridgeIPv4(config, br); err != nil {
		t.Fatalf("Assign IPv4 to bridge failed: %v", err)
	}

	err := setupFixedCIDRv4(config, br)
	if err == nil {
		t.Fatal("Setup bridge FixedCIDRv4 should have failed")
	}

	if _, ok := err.(*FixedCIDRv4Error); !ok {
		t.Fatalf("Did not fail with expected error. Actual error: %v", err)
	}

}

開發者ID:choldrim，項目名稱:docker，代碼行數:26，代碼來源:setup_fixedcidrv4_test.go

示例5: ToIPNet

func (x *XfrmAddress) ToIPNet(prefixlen uint8) *net.IPNet {
	ip := x.ToIP()
	if GetIPFamily(ip) == FAMILY_V4 {
		return &net.IPNet{IP: ip, Mask: net.CIDRMask(int(prefixlen), 32)}
	}
	return &net.IPNet{IP: ip, Mask: net.CIDRMask(int(prefixlen), 128)}
}

開發者ID:CadeLaRen，項目名稱:docker-3，代碼行數:7，代碼來源:xfrm_linux.go

示例6: pack

func (e *EDNS0_SUBNET) pack() ([]byte, error) {
	b := make([]byte, 4)
	binary.BigEndian.PutUint16(b[0:], e.Family)
	b[2] = e.SourceNetmask
	b[3] = e.SourceScope
	switch e.Family {
	case 1:
		if e.SourceNetmask > net.IPv4len*8 {
			return nil, errors.New("dns: bad netmask")
		}
		if len(e.Address.To4()) != net.IPv4len {
			return nil, errors.New("dns: bad address")
		}
		ip := e.Address.To4().Mask(net.CIDRMask(int(e.SourceNetmask), net.IPv4len*8))
		needLength := (e.SourceNetmask + 8 - 1) / 8 // division rounding up
		b = append(b, ip[:needLength]...)
	case 2:
		if e.SourceNetmask > net.IPv6len*8 {
			return nil, errors.New("dns: bad netmask")
		}
		if len(e.Address) != net.IPv6len {
			return nil, errors.New("dns: bad address")
		}
		ip := e.Address.Mask(net.CIDRMask(int(e.SourceNetmask), net.IPv6len*8))
		needLength := (e.SourceNetmask + 8 - 1) / 8 // division rounding up
		b = append(b, ip[:needLength]...)
	default:
		return nil, errors.New("dns: bad address family")
	}
	return b, nil
}

開發者ID:Rudloff，項目名稱:platform，代碼行數:31，代碼來源:edns.go

示例7: parseRouteAddr

// parseRouteAddr parses a string route address and returns the resulting
// RouteAddr struct
func parseRouteAddr(text string) (RouteAddr, error) {
	r := RouteAddr{}
	// detect if this is a remote addr
	if strings.HasSuffix(text, "C") {
		text = strings.TrimSuffix(text, "C")
		r.Remote = true
	}
	// for some reason ipm.IP is 16 bytes for an IPv4, but ip is 4 bytes
	// so we use ip instead
	ip, ipm, err := net.ParseCIDR(text)
	if err == nil {
		r.IP = ip
		r.Mask = ipm.Mask
		return r, nil
	}

	//it might not be a CIDR and instead just an IP
	r.IP = net.ParseIP(text)
	if r.IP == nil {
		return r, err
	}

	r.Mask = net.CIDRMask(32, 8*net.IPv4len)
	if r.IP.To4() == nil {
		r.Mask = net.CIDRMask(128, 8*net.IPv6len)
	}
	return r, nil
}

開發者ID:levenlabs，項目名稱:go-openvpn，代碼行數:30，代碼來源:status.go

示例8: UnmarshalBinary

func (c *CIDRs) UnmarshalBinary(b []byte) error {
	if len(b) < 1 {
		return fmt.Errorf("compare: missing type byte")
	}
	if b[0] != byte(TypeCIDRs) {
		return fmt.Errorf("compare: expected type %d, got %d", TypeCIDRs, b[0])
	}
	b = b[1:]
	*c = make(CIDRs, 0, len(b)/ipv4CIDRLen)
	for len(b) > 0 {
		var n net.IPNet
		if b[0]&(1<<7) == 0 { // check top bit of ones byte, if 0, IPv4, if 1, IPv6
			if len(b) < ipv4CIDRLen {
				return fmt.Errorf("compare: unexpected end of buffer decoding IPv4 CIDR")
			}
			n.Mask = net.CIDRMask(int(b[0]), ipv4Len*8)
			n.IP = net.IPv4(b[1], b[2], b[3], b[4])
			b = b[5:]
		} else {
			if len(b) < ipv6CIDRLen {
				return fmt.Errorf("compare: unexpected end of buffer decoding IPv6 CIDR")
			}
			n.Mask = net.CIDRMask(int(b[0]&^(1<<7)), ipv6Len*8)
			n.IP = make([]byte, ipv6Len)
			copy(n.IP, b[1:])
			b = b[ipv6CIDRLen:]
		}
		*c = append(*c, n)
	}
	return nil
}

開發者ID:ably-forks，項目名稱:flynn，代碼行數:31，代碼來源:compare.go

示例9: setupHostVeth

func setupHostVeth(vethName string, ipConf *types.IPConfig) error {
	// hostVeth moved namespaces and may have a new ifindex
	veth, err := netlink.LinkByName(vethName)
	if err != nil {
		return fmt.Errorf("failed to lookup %q: %v", vethName, err)
	}

	// TODO(eyakubovich): IPv6
	ipn := &net.IPNet{
		IP:   ipConf.Gateway,
		Mask: net.CIDRMask(32, 32),
	}
	addr := &netlink.Addr{IPNet: ipn, Label: ""}
	if err = netlink.AddrAdd(veth, addr); err != nil {
		return fmt.Errorf("failed to add IP addr (%#v) to veth: %v", ipn, err)
	}

	ipn = &net.IPNet{
		IP:   ipConf.IP.IP,
		Mask: net.CIDRMask(32, 32),
	}
	// dst happens to be the same as IP/net of host veth
	if err = ip.AddHostRoute(ipn, nil, veth); err != nil && !os.IsExist(err) {
		return fmt.Errorf("failed to add route on host: %v", err)
	}

	return nil
}

開發者ID:sinfomicien，項目名稱:rkt，代碼行數:28，代碼來源:ptp.go

示例10: TestRuleAddDel

func TestRuleAddDel(t *testing.T) {
	srcNet := &net.IPNet{IP: net.IPv4(172, 16, 0, 1), Mask: net.CIDRMask(16, 32)}
	dstNet := &net.IPNet{IP: net.IPv4(172, 16, 1, 1), Mask: net.CIDRMask(24, 32)}

	rules_begin, err := RuleList(syscall.AF_INET)
	if err != nil {
		t.Fatal(err)
	}

	rule := NewRule()
	rule.Table = syscall.RT_TABLE_MAIN
	rule.Src = srcNet
	rule.Dst = dstNet
	rule.Priority = 5
	rule.OifName = "lo"
	rule.IifName = "lo"
	if err := RuleAdd(rule); err != nil {
		t.Fatal(err)
	}

	rules, err := RuleList(syscall.AF_INET)
	if err != nil {
		t.Fatal(err)
	}

	if len(rules) != len(rules_begin)+1 {
		t.Fatal("Rule not added properly")
	}

	// find this rule
	var found bool
	for i := range rules {
		if rules[i].Table == rule.Table &&
			rules[i].Src != nil && rules[i].Src.String() == srcNet.String() &&
			rules[i].Dst != nil && rules[i].Dst.String() == dstNet.String() &&
			rules[i].OifName == rule.OifName &&
			rules[i].Priority == rule.Priority &&
			rules[i].IifName == rule.IifName {
			found = true
		}
	}
	if !found {
		t.Fatal("Rule has diffrent options than one added")
	}

	if err := RuleDel(rule); err != nil {
		t.Fatal(err)
	}

	rules_end, err := RuleList(syscall.AF_INET)
	if err != nil {
		t.Fatal(err)
	}

	if len(rules_end) != len(rules_begin) {
		t.Fatal("Rule not removed properly")
	}
}

開發者ID:winsx，項目名稱:libnetwork，代碼行數:58，代碼來源:rule_test.go

示例11: splitToHostNetwork

func splitToHostNetwork(domain string) (bool, string, *net.IPMask, *net.IPMask) {
	var host string

	const v4Len = 32
	n4s := "32"

	const v6Len = 128
	n6s := "128"

	line := strings.SplitN(domain, "/", 3)
	if len(line) == 3 {
		host, n4s, n6s = line[0], line[1], line[2]
	} else if len(line) == 2 {
		host, n4s = line[0], line[1]
	} else {
		host = line[0]
	}

	if !IsDomainName(host) {
		return false, host, nil, nil
	}

	if isEmpty(&n4s) {
		// empty values default to maximum netmask
		n4s = "32"
	}

	if isEmpty(&n6s) {
		// empty values default to maximum netmask
		n6s = "128"
	}

	var err error
	var n4 int
	var n6 int

	var v4Network net.IPMask
	var v6Network net.IPMask

	if n4, err = strconv.Atoi(n4s); err != nil {
		return false, host, nil, nil
	} else if n4 < 0 || n4 > v4Len {
		return false, host, nil, nil
	} else {
		v4Network = net.CIDRMask(n4, v4Len)
	}

	if n6, err = strconv.Atoi(n6s); err != nil {
		return false, host, nil, nil
	} else if n6 < 0 || n6 > v6Len {
		return false, host, nil, nil
	} else {
		v6Network = net.CIDRMask(n6, v6Len)
	}

	return true, host, &v4Network, &v6Network

}

開發者ID:zaccone，項目名稱:goSPF，代碼行數:58，代碼來源:parser.go

示例12: testConfig

func testConfig() *Configuration {
	return &Configuration{
		source:     extraconfig.MapSource(map[string]string{}),
		sink:       extraconfig.MapSink(map[string]string{}),
		BridgeLink: &mockLink{},
		Network: config.Network{
			BridgeNetwork: "bridge",
			ContainerNetworks: map[string]*executor.ContainerNetwork{
				"bridge": {
					Common: executor.Common{
						Name: "bridge",
					},
					Type: constants.BridgeScopeType,
				},
				"bar7": {
					Common: executor.Common{
						Name: "external",
					},
					Gateway:     net.IPNet{IP: net.ParseIP("10.13.0.1"), Mask: net.CIDRMask(16, 32)},
					Nameservers: []net.IP{net.ParseIP("10.10.1.1")},
					Pools:       []ip.Range{*ip.ParseRange("10.13.1.0-255"), *ip.ParseRange("10.13.2.0-10.13.2.15")},
					Type:        constants.ExternalScopeType,
				},
				"bar71": {
					Common: executor.Common{
						Name: "external",
					},
					Gateway:     net.IPNet{IP: net.ParseIP("10.131.0.1"), Mask: net.CIDRMask(16, 32)},
					Nameservers: []net.IP{net.ParseIP("10.131.0.1"), net.ParseIP("10.131.0.2")},
					Pools:       []ip.Range{*ip.ParseRange("10.131.1.0/16")},
					Type:        constants.ExternalScopeType,
				},
				"bar72": {
					Common: executor.Common{
						Name: "external",
					},
					Type: constants.ExternalScopeType,
				},
				"bar73": {
					Common: executor.Common{
						Name: "external",
					},
					Gateway: net.IPNet{IP: net.ParseIP("10.133.0.1"), Mask: net.CIDRMask(16, 32)},
					Type:    constants.ExternalScopeType,
				},
			},
		},
		PortGroups: map[string]object.NetworkReference{
			"bridge": testBridgeNetwork,
			"bar7":   testExternalNetwork,
			"bar71":  testExternalNetwork,
			"bar72":  testExternalNetwork,
			"bar73":  testExternalNetwork,
		},
	}
}

開發者ID:vmware，項目名稱:vic，代碼行數:56，代碼來源:context_test.go

示例13: TestMain

func TestMain(m *testing.M) {
	n := object.NewNetwork(nil, types.ManagedObjectReference{})
	n.InventoryPath = "testBridge"
	testBridgeNetwork = n

	n = object.NewNetwork(nil, types.ManagedObjectReference{})
	n.InventoryPath = "testExternal"
	testExternalNetwork := n

	Config = Configuration{
		BridgeLink:    &mockLink{},
		BridgeNetwork: "bridge",
		ContainerNetworks: map[string]*ContainerNetwork{
			"bridge": &ContainerNetwork{
				PortGroup: testBridgeNetwork,
			},
			"bar7": &ContainerNetwork{
				Common: executor.Common{
					Name: "external",
				},
				Gateway:     net.IPNet{IP: net.ParseIP("10.13.0.1"), Mask: net.CIDRMask(16, 32)},
				Nameservers: []net.IP{net.ParseIP("10.10.1.1")},
				Pools:       []ip.Range{*ip.ParseRange("10.13.1.0-255"), *ip.ParseRange("10.13.2.0-10.13.2.15")},
				PortGroup:   testExternalNetwork,
			},
			"bar71": &ContainerNetwork{
				Common: executor.Common{
					Name: "external",
				},
				Gateway:     net.IPNet{IP: net.ParseIP("10.131.0.1"), Mask: net.CIDRMask(16, 32)},
				Nameservers: []net.IP{net.ParseIP("10.131.0.1"), net.ParseIP("10.131.0.2")},
				Pools:       []ip.Range{*ip.ParseRange("10.131.1.0/16")},
				PortGroup:   testExternalNetwork,
			},
			"bar72": &ContainerNetwork{
				Common: executor.Common{
					Name: "external",
				},
				PortGroup: testExternalNetwork,
			},
			"bar73": &ContainerNetwork{
				Common: executor.Common{
					Name: "external",
				},
				Gateway:   net.IPNet{IP: net.ParseIP("10.133.0.1"), Mask: net.CIDRMask(16, 32)},
				PortGroup: testExternalNetwork,
			},
		},
	}

	rc := m.Run()

	os.Exit(rc)
}

開發者ID:kjplatz，項目名稱:vic，代碼行數:54，代碼來源:context_test.go

示例14: newInterface

func newInterface(s, i byte) *Interface {
	return &Interface{
		HardwareAddr: net.HardwareAddr{0x02, s, 0, 0, 0, i},
		DHCPv4: []net.IPNet{{
			IP:   net.IP{10, s, 0, i},
			Mask: net.CIDRMask(24, 32)}},
		DHCPv6: []net.IPNet{{
			IP:   net.IP{0xfd, s, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, i},
			Mask: net.CIDRMask(64, 128)}},
	}
}

開發者ID:hanscj1，項目名稱:mantle，代碼行數:11，代碼來源:dnsmasq.go

示例15: ExampleCIDRMask

func ExampleCIDRMask() {
	// This mask corresponds to a /31 subnet for IPv4.
	fmt.Println(net.CIDRMask(31, 32))

	// This mask corresponds to a /64 subnet for IPv6.
	fmt.Println(net.CIDRMask(64, 128))

	// Output:
	// fffffffe
	// ffffffffffffffff0000000000000000
}

開發者ID:Harvey-OS，項目名稱:go，代碼行數:11，代碼來源:example_test.go

注：本文中的net.CIDRMask函數示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。