Merge pull request #544 from michaelharo/format

Humanize some more options

Author: pmazzini

dhcpv4/option_relay_agent_information.go

@@ -12,6 +12,14 @@ type RelayOptions struct {
 
 var relayHumanizer = OptionHumanizer{
 	ValueHumanizer: func(code OptionCode, data []byte) fmt.Stringer {
+		var d OptionDecoder
+		switch code {
+		case LinkSelectionSubOption, ServerIdentifierOverrideSubOption:
+			d = &IPs{}
+		}
+		if d != nil && d.FromBytes(data) == nil {
+			return d
+		}
 		return raiSubOptionValue{data}
 	},
 	CodeHumanizer: func(c uint8) OptionCode {

dhcpv4/option_relay_agent_information_test.go

@@ -36,12 +36,14 @@ func TestOptRelayAgentInfo(t *testing.T) {
 	opt := OptRelayAgentInfo(
 		OptGeneric(GenericOptionCode(1), []byte("linux")),
 		OptGeneric(GenericOptionCode(2), []byte("boot")),
+		OptGeneric(GenericOptionCode(LinkSelectionSubOption), []byte{192, 0, 2, 1}),
 	)
 	wantBytes := []byte{
 		1, 5, 'l', 'i', 'n', 'u', 'x',
 		2, 4, 'b', 'o', 'o', 't',
+		5, 4, 192, 0, 2, 1,
 	}
-	wantString := "Relay Agent Information:\n\n    Agent Circuit ID Sub-option: linux ([108 105 110 117 120])\n    Agent Remote ID Sub-option: boot ([98 111 111 116])\n"
+	wantString := "Relay Agent Information:\n\n    Agent Circuit ID Sub-option: linux ([108 105 110 117 120])\n    Agent Remote ID Sub-option: boot ([98 111 111 116])\n    Link Selection Sub-option: 192.0.2.1\n"
 	require.Equal(t, wantBytes, opt.Value.ToBytes())
 	require.Equal(t, OptionRelayAgentInformation, opt.Code)
 	require.Equal(t, wantString, opt.String())

dhcpv4/options.go

@@ -344,7 +344,8 @@ func getOption(code OptionCode, data []byte, vendorDecoder OptionDecoder) fmt.St
 		d = &OptionCodeList{}
 
 	case OptionHostName, OptionDomainName, OptionRootPath,
-		OptionClassIdentifier, OptionTFTPServerName, OptionBootfileName:
+		OptionClassIdentifier, OptionTFTPServerName, OptionBootfileName,
+		OptionMessage, OptionReferenceToTZDatabase:
 		var s String
 		d = &s
 
@@ -354,7 +355,9 @@ func getOption(code OptionCode, data []byte, vendorDecoder OptionDecoder) fmt.St
 	case OptionDNSDomainSearchList:
 		d = &rfc1035label.Labels{}
 
-	case OptionIPAddressLeaseTime, OptionRenewTimeValue, OptionRebindingTimeValue, OptionIPv6OnlyPreferred:
+	case OptionIPAddressLeaseTime, OptionRenewTimeValue,
+		OptionRebindingTimeValue, OptionIPv6OnlyPreferred, OptionArpCacheTimeout,
+		OptionTimeOffset:
 		var dur Duration
 		d = &dur