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package dhcpv4
// values from http://www.networksorcery.com/enp/protocol/dhcp.htm and
// http://www.networksorcery.com/enp/protocol/bootp/options.htm
// MessageType represents the possible DHCP message types - DISCOVER, OFFER, etc
type MessageType byte
// DHCP message types
const (
MessageTypeDiscover MessageType = iota + 1
MessageTypeOffer
MessageTypeRequest
MessageTypeDecline
MessageTypeAck
MessageTypeNak
MessageTypeRelease
MessageTypeInform
)
// OpcodeType represents a DHCPv4 opcode.
type OpcodeType uint8
// constants that represent valid values for OpcodeType
const (
_ OpcodeType = iota // skip 0
OpcodeBootRequest
OpcodeBootReply
)
// OpcodeToString maps an OpcodeType to its mnemonic name
var OpcodeToString = map[OpcodeType]string{
OpcodeBootRequest: "BootRequest",
OpcodeBootReply: "BootReply",
}
// DHCPv4 Options
const (
OptionPad OptionCode = 0
OptionSubnetMask = 1
OptionTimeOffset = 2
OptionRouter = 3
OptionTimeServer = 4
OptionNameServer = 5
OptionDomainNameServer = 6
OptionLogServer = 7
OptionQuoteServer = 8
OptionLPRServer = 9
OptionImpressServer = 10
OptionResourceLocationServer = 11
OptionHostName = 12
OptionBootFileSize = 13
OptionMeritDumpFile = 14
OptionDomainName = 15
OptionSwapServer = 16
OptionRootPath = 17
OptionExtensionsPath = 18
OptionIPForwarding = 19
OptionNonLocalSourceRouting = 20
OptionPolicyFilter = 21
OptionMaximumDatagramAssemblySize = 22
OptionDefaultIPTTL = 23
OptionPathMTUAgingTimeout = 24
OptionPathMTUPlateauTable = 25
OptionInterfaceMTU = 26
OptionAllSubnetsAreLocal = 27
OptionBroadcastAddress = 28
OptionPerformMaskDiscovery = 29
OptionMaskSupplier = 30
OptionPerformRouterDiscovery = 31
OptionRouterSolicitationAddress = 32
OptionStaticRoutingTable = 33
OptionTrailerEncapsulation = 34
OptionArpCacheTimeout = 35
OptionEthernetEncapsulation = 36
OptionDefaulTCPTTL = 37
OptionTCPKeepaliveInterval = 38
OptionTCPKeepaliveGarbage = 39
OptionNetworkInformationServiceDomain = 40
OptionNetworkInformationServers = 41
OptionNTPServers = 42
OptionVendorSpecificInformation = 43
OptionNetBIOSOverTCPIPNameServer = 44
OptionNetBIOSOverTCPIPDatagramDistributionServer = 45
OptionNetBIOSOverTCPIPNodeType = 46
OptionNetBIOSOverTCPIPScope = 47
OptionXWindowSystemFontServer = 48
OptionXWindowSystemDisplayManger = 49
OptionRequestedIPAddress = 50
OptionIPAddressLeaseTime = 51
OptionOptionOverload = 52
OptionDHCPMessageType = 53
OptionServerIdentifier = 54
OptionParameterRequestList = 55
OptionMessage = 56
OptionMaximumDHCPMessageSize = 57
OptionRenewTimeValue = 58
OptionRebindingTimeValue = 59
OptionClassIdentifier = 60
OptionClientIdentifier = 61
OptionNetWareIPDomainName = 62
OptionNetWareIPInformation = 63
OptionNetworkInformationServicePlusDomain = 64
OptionNetworkInformationServicePlusServers = 65
OptionTFTPServerName = 66
OptionBootfileName = 67
OptionMobileIPHomeAgent = 68
OptionSimpleMailTransportProtocolServer = 69
OptionPostOfficeProtocolServer = 70
OptionNetworkNewsTransportProtocolServer = 71
OptionDefaultWorldWideWebServer = 72
OptionDefaultFingerServer = 73
OptionDefaultInternetRelayChatServer = 74
OptionStreetTalkServer = 75
OptionStreetTalkDirectoryAssistanceServer = 76
OptionUserClassInformation = 77
OptionSLPDirectoryAgent = 78
OptionSLPServiceScope = 79
OptionRapidCommit = 80
OptionFQDN = 81
OptionRelayAgentInformation = 82
OptionInternetStorageNameService = 83
// Option 84 returned in RFC 3679
OptionNDSServers = 85
OptionNDSTreeName = 86
OptionNDSContext = 87
OptionBCMCSControllerDomainNameList = 88
OptionBCMCSControllerIPv4AddressList = 89
OptionAuthentication = 90
OptionClientLastTransactionTime = 91
OptionAssociatedIP = 92
OptionClientSystemArchitectureType = 93
OptionClientNetworkInterfaceIdentifier = 94
OptionLDAP = 95
// Option 96 returned in RFC 3679
OptionClientMachineIdentifier = 97
OptionOpenGroupUserAuthentication = 98
OptionGeoConfCivic = 99
OptionIEEE10031TZString = 100
OptionReferenceToTZDatabase = 101
// Options 102-111 returned in RFC 3679
OptionNetInfoParentServerAddress = 112
OptionNetInfoParentServerTag = 113
OptionURL = 114
// Option 115 returned in RFC 3679
OptionAutoConfigure = 116
OptionNameServiceSearch = 117
OptionSubnetSelection = 118
OptionDNSDomainSearchList = 119
OptionSIPServersDHCPOption = 120
OptionClasslessStaticRouteOption = 121
OptionCCC = 122
OptionGeoConf = 123
OptionVendorIdentifyingVendorClass = 124
OptionVendorIdentifyingVendorSpecific = 125
// Options 126-127 returned in RFC 3679
OptionTFTPServerIPAddress = 128
OptionCallServerIPAddress = 129
OptionDiscriminationString = 130
OptionRemoteStatisticsServerIPAddress = 131
Option8021PVLANID = 132
Option8021QL2Priority = 133
OptionDiffservCodePoint = 134
OptionHTTPProxyForPhoneSpecificApplications = 135
OptionPANAAuthenticationAgent = 136
OptionLoSTServer = 137
OptionCAPWAPAccessControllerAddresses = 138
OptionOPTIONIPv4AddressMoS = 139
OptionOPTIONIPv4FQDNMoS = 140
OptionSIPUAConfigurationServiceDomains = 141
OptionOPTIONIPv4AddressANDSF = 142
OptionOPTIONIPv6AddressANDSF = 143
// Options 144-149 returned in RFC 3679
OptionTFTPServerAddress = 150
OptionStatusCode = 151
OptionBaseTime = 152
OptionStartTimeOfState = 153
OptionQueryStartTime = 154
OptionQueryEndTime = 155
OptionDHCPState = 156
OptionDataSource = 157
// Options 158-174 returned in RFC 3679
OptionEtherboot = 175
OptionIPTelephone = 176
OptionEtherbootPacketCableAndCableHome = 177
// Options 178-207 returned in RFC 3679
OptionPXELinuxMagicString = 208
OptionPXELinuxConfigFile = 209
OptionPXELinuxPathPrefix = 210
OptionPXELinuxRebootTime = 211
OptionOPTION6RD = 212
OptionOPTIONv4AccessDomain = 213
// Options 214-219 returned in RFC 3679
OptionSubnetAllocation = 220
OptionVirtualSubnetAllocation = 221
// Options 222-223 returned in RFC 3679
// Options 224-254 are reserved for private use
OptionEnd = 255
)
// OptionCodeToString maps an OptionCode to its mnemonic name
var OptionCodeToString = map[OptionCode]string{
OptionPad: "Pad",
OptionSubnetMask: "Subnet Mask",
OptionTimeOffset: "Time Offset",
OptionRouter: "Router",
OptionTimeServer: "Time Server",
OptionNameServer: "Name Server",
OptionDomainNameServer: "Domain Name Server",
OptionLogServer: "Log Server",
OptionQuoteServer: "Quote Server",
OptionLPRServer: "LPR Server",
OptionImpressServer: "Impress Server",
OptionResourceLocationServer: "Resource Location Server",
OptionHostName: "Host Name",
OptionBootFileSize: "Boot File Size",
OptionMeritDumpFile: "Merit Dump File",
OptionDomainName: "Domain Name",
OptionSwapServer: "Swap Server",
OptionRootPath: "Root Path",
OptionExtensionsPath: "Extensions Path",
OptionIPForwarding: "IP Forwarding enable/disable",
OptionNonLocalSourceRouting: "Non-local Source Routing enable/disable",
OptionPolicyFilter: "Policy Filter",
OptionMaximumDatagramAssemblySize: "Maximum Datagram Reassembly Size",
OptionDefaultIPTTL: "Default IP Time-to-live",
OptionPathMTUAgingTimeout: "Path MTU Aging Timeout",
OptionPathMTUPlateauTable: "Path MTU Plateau Table",
OptionInterfaceMTU: "Interface MTU",
OptionAllSubnetsAreLocal: "All Subnets Are Local",
OptionBroadcastAddress: "Broadcast Address",
OptionPerformMaskDiscovery: "Perform Mask Discovery",
OptionMaskSupplier: "Mask Supplier",
OptionPerformRouterDiscovery: "Perform Router Discovery",
OptionRouterSolicitationAddress: "Router Solicitation Address",
OptionStaticRoutingTable: "Static Routing Table",
OptionTrailerEncapsulation: "Trailer Encapsulation",
OptionArpCacheTimeout: "ARP Cache Timeout",
OptionEthernetEncapsulation: "Ethernet Encapsulation",
OptionDefaulTCPTTL: "Default TCP TTL",
OptionTCPKeepaliveInterval: "TCP Keepalive Interval",
OptionTCPKeepaliveGarbage: "TCP Keepalive Garbage",
OptionNetworkInformationServiceDomain: "Network Information Service Domain",
OptionNetworkInformationServers: "Network Information Servers",
OptionNTPServers: "NTP Servers",
OptionVendorSpecificInformation: "Vendor Specific Information",
OptionNetBIOSOverTCPIPNameServer: "NetBIOS over TCP/IP Name Server",
OptionNetBIOSOverTCPIPDatagramDistributionServer: "NetBIOS over TCP/IP Datagram Distribution Server",
OptionNetBIOSOverTCPIPNodeType: "NetBIOS over TCP/IP Node Type",
OptionNetBIOSOverTCPIPScope: "NetBIOS over TCP/IP Scope",
OptionXWindowSystemFontServer: "X Window System Font Server",
OptionXWindowSystemDisplayManger: "X Window System Display Manager",
OptionRequestedIPAddress: "Requested IP Address",
OptionIPAddressLeaseTime: "IP Addresses Lease Time",
OptionOptionOverload: "Option Overload",
OptionDHCPMessageType: "DHCP Message Type",
OptionServerIdentifier: "Server Identifier",
OptionParameterRequestList: "Parameter Request List",
OptionMessage: "Message",
OptionMaximumDHCPMessageSize: "Maximum DHCP Message Size",
OptionRenewTimeValue: "Renew Time Value",
OptionRebindingTimeValue: "Rebinding Time Value",
OptionClassIdentifier: "Class Identifier",
OptionClientIdentifier: "Client identifier",
OptionNetWareIPDomainName: "NetWare/IP Domain Name",
OptionNetWareIPInformation: "NetWare/IP Information",
OptionNetworkInformationServicePlusDomain: "Network Information Service+ Domain",
OptionNetworkInformationServicePlusServers: "Network Information Service+ Servers",
OptionTFTPServerName: "TFTP Server Name",
OptionBootfileName: "Bootfile Name",
OptionMobileIPHomeAgent: "Mobile IP Home Agent",
OptionSimpleMailTransportProtocolServer: "SMTP Server",
OptionPostOfficeProtocolServer: "POP Server",
OptionNetworkNewsTransportProtocolServer: "NNTP Server",
OptionDefaultWorldWideWebServer: "Default WWW Server",
OptionDefaultFingerServer: "Default Finger Server",
OptionDefaultInternetRelayChatServer: "Default IRC Server",
OptionStreetTalkServer: "StreetTalk Server",
OptionStreetTalkDirectoryAssistanceServer: "StreetTalk Directory Assistance Server",
OptionUserClassInformation: "User Class Information",
OptionSLPDirectoryAgent: "SLP DIrectory Agent",
OptionSLPServiceScope: "SLP Service Scope",
OptionRapidCommit: "Rapid Commit",
OptionFQDN: "FQDN",
OptionRelayAgentInformation: "Relay Agent Information",
OptionInternetStorageNameService: "Internet Storage Name Service",
// Option 84 returned in RFC 3679
OptionNDSServers: "NDS Servers",
OptionNDSTreeName: "NDS Tree Name",
OptionNDSContext: "NDS Context",
OptionBCMCSControllerDomainNameList: "BCMCS Controller Domain Name List",
OptionBCMCSControllerIPv4AddressList: "BCMCS Controller IPv4 Address List",
OptionAuthentication: "Authentication",
OptionClientLastTransactionTime: "Client Last Transaction Time",
OptionAssociatedIP: "Associated IP",
OptionClientSystemArchitectureType: "Client System Architecture Type",
OptionClientNetworkInterfaceIdentifier: "Client Network Interface Identifier",
OptionLDAP: "LDAP",
// Option 96 returned in RFC 3679
OptionClientMachineIdentifier: "Client Machine Identifier",
OptionOpenGroupUserAuthentication: "OpenGroup's User Authentication",
OptionGeoConfCivic: "GEOCONF_CIVIC",
OptionIEEE10031TZString: "IEEE 1003.1 TZ String",
OptionReferenceToTZDatabase: "Reference to the TZ Database",
// Options 102-111 returned in RFC 3679
OptionNetInfoParentServerAddress: "NetInfo Parent Server Address",
OptionNetInfoParentServerTag: "NetInfo Parent Server Tag",
OptionURL: "URL",
// Option 115 returned in RFC 3679
OptionAutoConfigure: "Auto-Configure",
OptionNameServiceSearch: "Name Service Search",
OptionSubnetSelection: "Subnet Selection",
OptionDNSDomainSearchList: "DNS Domain Search List",
OptionSIPServersDHCPOption: "SIP Servers DHCP Option",
OptionClasslessStaticRouteOption: "Classless Static Route Option",
OptionCCC: "CCC, CableLabs Client Configuration",
OptionGeoConf: "GeoConf",
OptionVendorIdentifyingVendorClass: "Vendor-Identifying Vendor Class",
OptionVendorIdentifyingVendorSpecific: "Vendor-Identifying Vendor-Specific",
// Options 126-127 returned in RFC 3679
OptionTFTPServerIPAddress: "TFTP Server IP Address",
OptionCallServerIPAddress: "Call Server IP Address",
OptionDiscriminationString: "Discrimination String",
OptionRemoteStatisticsServerIPAddress: "RemoteStatistics Server IP Address",
Option8021PVLANID: "802.1P VLAN ID",
Option8021QL2Priority: "802.1Q L2 Priority",
OptionDiffservCodePoint: "Diffserv Code Point",
OptionHTTPProxyForPhoneSpecificApplications: "HTTP Proxy for phone-specific applications",
OptionPANAAuthenticationAgent: "PANA Authentication Agent",
OptionLoSTServer: "LoST Server",
OptionCAPWAPAccessControllerAddresses: "CAPWAP Access Controller Addresses",
OptionOPTIONIPv4AddressMoS: "OPTION-IPv4_Address-MoS",
OptionOPTIONIPv4FQDNMoS: "OPTION-IPv4_FQDN-MoS",
OptionSIPUAConfigurationServiceDomains: "SIP UA Configuration Service Domains",
OptionOPTIONIPv4AddressANDSF: "OPTION-IPv4_Address-ANDSF",
OptionOPTIONIPv6AddressANDSF: "OPTION-IPv6_Address-ANDSF",
// Options 144-149 returned in RFC 3679
OptionTFTPServerAddress: "TFTP Server Address",
OptionStatusCode: "Status Code",
OptionBaseTime: "Base Time",
OptionStartTimeOfState: "Start Time of State",
OptionQueryStartTime: "Query Start Time",
OptionQueryEndTime: "Query End Time",
OptionDHCPState: "DHCP Staet",
OptionDataSource: "Data Source",
// Options 158-174 returned in RFC 3679
OptionEtherboot: "Etherboot",
OptionIPTelephone: "IP Telephone",
OptionEtherbootPacketCableAndCableHome: "Etherboot / PacketCable and CableHome",
// Options 178-207 returned in RFC 3679
OptionPXELinuxMagicString: "PXELinux Magic String",
OptionPXELinuxConfigFile: "PXELinux Config File",
OptionPXELinuxPathPrefix: "PXELinux Path Prefix",
OptionPXELinuxRebootTime: "PXELinux Reboot Time",
OptionOPTION6RD: "OPTION_6RD",
OptionOPTIONv4AccessDomain: "OPTION_V4_ACCESS_DOMAIN",
// Options 214-219 returned in RFC 3679
OptionSubnetAllocation: "Subnet Allocation",
OptionVirtualSubnetAllocation: "Virtual Subnet Selection",
// Options 222-223 returned in RFC 3679
// Options 224-254 are reserved for private use
OptionEnd: "End",
}
|
