relayServer

package
v0.0.0-...-ac9ef1f Latest Latest
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 Go to latest Published: Oct 5, 2017 License: Apache-2.0 Imports: 24 Imported by: 0

Documentation

Overview

Dhcp Relay Agent Interface Handling

Main entry point for DHCP_RELAY

Index

Constants

View Source 
const (
	DHCP_PACKET_MIN_SIZE    = 272
	DHCP_PACKET_HEADER_SIZE = 16
	DHCP_PACKET_MIN_BYTES   = 240
	DHCP_SERVER_PORT        = 67
	DHCP_CLIENT_PORT        = 68
	DHCP_BROADCAST_IP       = "255.255.255.255"
	DHCP_NO_IP              = "0.0.0.0"
	DHCP_REDDIS_DB_PORT     = ":6379"
)

DHCP Packet global constants

View Source 
const (
	CLIENT_CONNECTION_NOT_REQUIRED = "Connection to client is not required"
)

Variables

This section is empty.

Functions

func DhcpRelayAgentAddOptionsToPacket 

func DhcpRelayAgentAddOptionsToPacket(reqOptions DhcpRelayAgentOptions, mt MessageType,
	outPacket *DhcpRelayAgentPacket) (string, string)

func DhcpRelayAgentAllocateMemory 

func DhcpRelayAgentAllocateMemory()

func DhcpRelayAgentConnectToClients 

func DhcpRelayAgentConnectToClients(client ClientJson) error

* ConnectToClients: * This API will accept configFile location and from that it will * connect to clients like asicd, etc..

func DhcpRelayAgentCreateClientServerConn 

func DhcpRelayAgentCreateClientServerConn()

func DhcpRelayAgentDecodeInPkt 

func DhcpRelayAgentDecodeInPkt(data []byte, bytesRead int) (DhcpRelayAgentPacket,
	DhcpRelayAgentOptions, MessageType)

========================= END OF HELPER FUNCTION ===========================

  • APT to decode incoming Packet by converting the byte into DHCP packet format

func DhcpRelayAgentGetIpv4IntfList 

func DhcpRelayAgentGetIpv4IntfList()

func DhcpRelayAgentGetPortList 

func DhcpRelayAgentGetPortList()

func DhcpRelayAgentGetVlanList 

func DhcpRelayAgentGetVlanList()

func DhcpRelayAgentInitDB 

func DhcpRelayAgentInitDB() error

func DhcpRelayAgentInitGblHandling 

func DhcpRelayAgentInitGblHandling(ifNum int32, enable bool)

func DhcpRelayAgentInitIntfServerState 

func DhcpRelayAgentInitIntfServerState(serverIp string, id int32)

func DhcpRelayAgentInitIntfState 

func DhcpRelayAgentInitIntfState(IntfId int32)

func DhcpRelayAgentInitVlanInfo 

func DhcpRelayAgentInitVlanInfo(VlanName string, VlanId int32)

func DhcpRelayAgentListenAsicUpdate 

func DhcpRelayAgentListenAsicUpdate(address string) error

func DhcpRelayAgentOSSignalHandle 

func DhcpRelayAgentOSSignalHandle()

func DhcpRelayAgentReadDB 

func DhcpRelayAgentReadDB()

func DhcpRelayAgentReceiveDhcpPkt 

func DhcpRelayAgentReceiveDhcpPkt(clientHandler *net.UDPConn)

func DhcpRelayAgentSendClientOptPacket 

func DhcpRelayAgentSendClientOptPacket(ch *net.UDPConn, gblEntry DhcpRelayAgentGlobalInfo,
	inReq DhcpRelayAgentPacket, reqOptions DhcpRelayAgentOptions,
	mt MessageType, intfStateEntry *dhcprelayd.DhcpRelayIntfState)

func DhcpRelayAgentSendDiscoverPacket 

func DhcpRelayAgentSendDiscoverPacket(ch *net.UDPConn, gblEntry DhcpRelayAgentGlobalInfo,
	inReq DhcpRelayAgentPacket, reqOptions DhcpRelayAgentOptions,
	mt MessageType, intfStateEntry *dhcprelayd.DhcpRelayIntfState)

func DhcpRelayAgentSendPacket 

func DhcpRelayAgentSendPacket(clientHandler *net.UDPConn, cm *ipv4.ControlMessage,
	inReq DhcpRelayAgentPacket, reqOptions DhcpRelayAgentOptions, mType MessageType,
	intfStateEntry *dhcprelayd.DhcpRelayIntfState)

func DhcpRelayAgentSendPacketToDhcpClient 

func DhcpRelayAgentSendPacketToDhcpClient(gblEntry DhcpRelayAgentGlobalInfo,
	logicalId int32, inReq DhcpRelayAgentPacket, linuxInterface *net.Interface,
	reqOptions DhcpRelayAgentOptions, mt MessageType, server net.IP,
	intfStateEntry *dhcprelayd.DhcpRelayIntfState)

func DhcpRelayAgentSendPacketToDhcpServer 

func DhcpRelayAgentSendPacketToDhcpServer(ch *net.UDPConn,
	gblEntry DhcpRelayAgentGlobalInfo,
	inReq DhcpRelayAgentPacket, reqOptions DhcpRelayAgentOptions,
	mt MessageType, intfStateEntry *dhcprelayd.DhcpRelayIntfState)

DhcpDiscover MessageType = 1 // From Client - Can I have an IP? DhcpOffer MessageType = 2 // From Server - Here's an IP DhcpRequest MessageType = 3 // From Client - I'll take that IP (Also start for renewals) DhcpDecline MessageType = 4 // From Client - Sorry I can't use that IP DhcpACK MessageType = 5 // From Server, Yes you can have that IP DhcpNAK MessageType = 6 // From Server, No you cannot have that IP DhcpRelease MessageType = 7 // From Client, I don't need that IP anymore DhcpInform MessageType = 8 // From Client, I have this IP and there's nothing you can do about it

func DhcpRelayAgentUpdateIntfIpAddr 

func DhcpRelayAgentUpdateIntfIpAddr(ifIndexList []int32)

func DhcpRelayAgentUpdateIntfPortMap 

func DhcpRelayAgentUpdateIntfPortMap(msg asicdCommonDefs.IPv4IntfNotifyMsg, msgType uint8)

func DhcpRelayAgentUpdateIntfServerIp 

func DhcpRelayAgentUpdateIntfServerIp(ifNum int32, serverIp string)

func DhcpRelayAgentUpdateL3IntfStateChange 

func DhcpRelayAgentUpdateL3IntfStateChange(msg asicdCommonDefs.IPv4L3IntfStateNotifyMsg)

func DhcpRelayAgentUpdateVlanInfo 

func DhcpRelayAgentUpdateVlanInfo(vlanNotifyMsg asicdCommonDefs.VlanNotifyMsg, msgType uint8)

func DhcpRelayAsicdSubscriber 

func DhcpRelayAsicdSubscriber()

func DhcpRelayConnectToAsicd 

func DhcpRelayConnectToAsicd(client ClientJson) error

func DhcpRelayGlobalInit 

func DhcpRelayGlobalInit(enable bool)

func DhcpRelayInitPortParams 

func DhcpRelayInitPortParams() error

* DhcpRelayInitPortParams: * API to handle initialization of port parameter

func DhcpRelayProcessReceivedBuf 

func DhcpRelayProcessReceivedBuf(rcvdCh <-chan DhcpRelayPktChannel)

func DhcpRelaySignalHandler 

func DhcpRelaySignalHandler(sigChannel <-chan os.Signal)

* DhcpRelaySignalHandler: * This API will catch any os signals for DRA and if the signal is of * SIGHUP type then it exit the process

func InitDhcpRelayPortPktHandler 

func InitDhcpRelayPortPktHandler() error

* InitDhcpRelayPktHandler: * This API is used to initialize all the data structures varialbe that * is needed by relay agent to perform its operation

func ParseMessageTypeToString 

func ParseMessageTypeToString(mtype MessageType) string

func StartServer 

func StartServer(log *logging.Writer, handler *DhcpRelayServiceHandler, params string) error

func UtiltrimNull 

func UtiltrimNull(d []byte) []byte

Types

type AsicdClient 

type AsicdClient struct {
	DHCPRELAYClientBase
	ClientHdl *asicdServices.ASICDServicesClient
}

type ClientJson 

type ClientJson struct {
	Name string `json:Name`
	Port int    `json:Port`
}

type DHCPRELAYClientBase 

type DHCPRELAYClientBase struct {
	Address            string
	Transport          thrift.TTransport
	PtrProtocolFactory *thrift.TBinaryProtocolFactory
	IsConnected        bool
}

type DhcpOptionCode 

type DhcpOptionCode byte

type is similar to typedef in c 

const (
	End                          DhcpOptionCode = 255
	Pad                          DhcpOptionCode = 0
	OptionSubnetMask             DhcpOptionCode = 1
	OptionTimeOffset             DhcpOptionCode = 2
	OptionRouter                 DhcpOptionCode = 3
	OptionTimeServer             DhcpOptionCode = 4
	OptionNameServer             DhcpOptionCode = 5
	OptionDomainNameServer       DhcpOptionCode = 6
	OptionLogServer              DhcpOptionCode = 7
	OptionCookieServer           DhcpOptionCode = 8
	OptionLPRServer              DhcpOptionCode = 9
	OptionImpressServer          DhcpOptionCode = 10
	OptionResourceLocationServer DhcpOptionCode = 11
	OptionHostName               DhcpOptionCode = 12
	OptionBootFileSize           DhcpOptionCode = 13
	OptionMeritDumpFile          DhcpOptionCode = 14
	OptionDomainName             DhcpOptionCode = 15
	OptionSwapServer             DhcpOptionCode = 16
	OptionRootPath               DhcpOptionCode = 17
	OptionExtensionsPath         DhcpOptionCode = 18

	// IP Layer Parameters per Host
	OptionIPForwardingEnableDisable          DhcpOptionCode = 19
	OptionNonLocalSourceRoutingEnableDisable DhcpOptionCode = 20
	OptionPolicyFilter                       DhcpOptionCode = 21
	OptionMaximumDatagramReassemblySize      DhcpOptionCode = 22
	OptionDefaultIPTimeToLive                DhcpOptionCode = 23
	OptionPathMTUAgingTimeout                DhcpOptionCode = 24
	OptionPathMTUPlateauTable                DhcpOptionCode = 25

	// IP Layer Parameters per Interface
	OptionInterfaceMTU              DhcpOptionCode = 26
	OptionAllSubnetsAreLocal        DhcpOptionCode = 27
	OptionBroadcastAddress          DhcpOptionCode = 28
	OptionPerformMaskDiscovery      DhcpOptionCode = 29
	OptionMaskSupplier              DhcpOptionCode = 30
	OptionPerformRouterDiscovery    DhcpOptionCode = 31
	OptionRouterSolicitationAddress DhcpOptionCode = 32
	OptionStaticRoute               DhcpOptionCode = 33

	// Link Layer Parameters per Interface
	OptionTrailerEncapsulation  DhcpOptionCode = 34
	OptionARPCacheTimeout       DhcpOptionCode = 35
	OptionEthernetEncapsulation DhcpOptionCode = 36

	// TCP Parameters
	OptionTCPDefaultTTL        DhcpOptionCode = 37
	OptionTCPKeepaliveInterval DhcpOptionCode = 38
	OptionTCPKeepaliveGarbage  DhcpOptionCode = 39

	// Application and Service Parameters
	OptionNetworkInformationServiceDomain            DhcpOptionCode = 40
	OptionNetworkInformationServers                  DhcpOptionCode = 41
	OptionNetworkTimeProtocolServers                 DhcpOptionCode = 42
	OptionVendorSpecificInformation                  DhcpOptionCode = 43
	OptionNetBIOSOverTCPIPNameServer                 DhcpOptionCode = 44
	OptionNetBIOSOverTCPIPDatagramDistributionServer DhcpOptionCode = 45
	OptionNetBIOSOverTCPIPNodeType                   DhcpOptionCode = 46
	OptionNetBIOSOverTCPIPScope                      DhcpOptionCode = 47
	OptionXWindowSystemFontServer                    DhcpOptionCode = 48
	OptionXWindowSystemDisplayManager                DhcpOptionCode = 49
	OptionNetworkInformationServicePlusDomain        DhcpOptionCode = 64
	OptionNetworkInformationServicePlusServers       DhcpOptionCode = 65
	OptionMobileIPHomeAgent                          DhcpOptionCode = 68
	OptionSimpleMailTransportProtocol                DhcpOptionCode = 69
	OptionPostOfficeProtocolServer                   DhcpOptionCode = 70
	OptionNetworkNewsTransportProtocol               DhcpOptionCode = 71
	OptionDefaultWorldWideWebServer                  DhcpOptionCode = 72
	OptionDefaultFingerServer                        DhcpOptionCode = 73
	OptionDefaultInternetRelayChatServer             DhcpOptionCode = 74
	OptionStreetTalkServer                           DhcpOptionCode = 75
	OptionStreetTalkDirectoryAssistance              DhcpOptionCode = 76

	OptionRelayAgentInformation DhcpOptionCode = 82

	// DHCP Extensions
	OptionRequestedIPAddress     DhcpOptionCode = 50
	OptionIPAddressLeaseTime     DhcpOptionCode = 51
	OptionOverload               DhcpOptionCode = 52
	OptionDHCPMessageType        DhcpOptionCode = 53
	OptionServerIdentifier       DhcpOptionCode = 54
	OptionParameterRequestList   DhcpOptionCode = 55
	OptionMessage                DhcpOptionCode = 56
	OptionMaximumDHCPMessageSize DhcpOptionCode = 57
	OptionRenewalTimeValue       DhcpOptionCode = 58
	OptionRebindingTimeValue     DhcpOptionCode = 59
	OptionVendorClassIdentifier  DhcpOptionCode = 60
	OptionClientIdentifier       DhcpOptionCode = 61

	OptionTFTPServerName DhcpOptionCode = 66
	OptionBootFileName   DhcpOptionCode = 67

	OptionUserClass DhcpOptionCode = 77

	OptionClientArchitecture DhcpOptionCode = 93

	OptionTZPOSIXString    DhcpOptionCode = 100
	OptionTZDatabaseString DhcpOptionCode = 101

	OptionClasslessRouteFormat DhcpOptionCode = 121
)

DHCP Available Options enum type.... This will cover most of the options type

type DhcpRelayAgentGlobalInfo 

type DhcpRelayAgentGlobalInfo struct {
	IntfConfig dhcprelayd.DhcpRelayIntf
	PcapHandle *pcap.Handle
	IpAddr     string
	Netmask    string
}

* Global DRA Data Structure: * IntfConfig Info * PCAP Handler specific to Interface

type DhcpRelayAgentIntfInfo 

type DhcpRelayAgentIntfInfo struct {
	IfIndex int32
	// contains filtered or unexported fields
}

type DhcpRelayAgentOptions 

type DhcpRelayAgentOptions map[DhcpOptionCode][]byte

Map of DHCP options

func (DhcpRelayAgentOptions) SelectOrder 

func (o DhcpRelayAgentOptions) SelectOrder(order []byte) []Option

SelectOrder returns a slice of options ordered and selected by a byte array usually defined by OptionParameterRequestList. This result is expected to be used in ReplyPacket()'s []Option parameter.

func (DhcpRelayAgentOptions) SelectOrderOrAll 

func (o DhcpRelayAgentOptions) SelectOrderOrAll(order []byte) []Option

SelectOrderOrAll has same functionality as SelectOrder, except if the order param is nil, whereby all options are added (in arbitary order).

type DhcpRelayAgentPacket 

type DhcpRelayAgentPacket []byte

A DHCP packet

func DhcpRelayAgentCreateNewPacket 

func DhcpRelayAgentCreateNewPacket(opCode OpCode, inReq DhcpRelayAgentPacket) DhcpRelayAgentPacket

* API to create a new Dhcp packet with Relay Agent information in it

func (*DhcpRelayAgentPacket) AddDhcpOptions 

func (p *DhcpRelayAgentPacket) AddDhcpOptions(op DhcpOptionCode, value []byte)

Appends a DHCP option to the end of a packet

func (DhcpRelayAgentPacket) AllocateOptions 

func (p DhcpRelayAgentPacket) AllocateOptions() []byte

func (DhcpRelayAgentPacket) GetCHAddr 

func (p DhcpRelayAgentPacket) GetCHAddr() net.HardwareAddr

func (DhcpRelayAgentPacket) GetCIAddr 

func (p DhcpRelayAgentPacket) GetCIAddr() net.IP

func (DhcpRelayAgentPacket) GetCookie 

func (p DhcpRelayAgentPacket) GetCookie() []byte

func (DhcpRelayAgentPacket) GetFile 

func (p DhcpRelayAgentPacket) GetFile() []byte

BOOTP legacy

func (DhcpRelayAgentPacket) GetFlags 

func (p DhcpRelayAgentPacket) GetFlags() []byte

func (DhcpRelayAgentPacket) GetGIAddr 

func (p DhcpRelayAgentPacket) GetGIAddr() net.IP

func (DhcpRelayAgentPacket) GetHeaderLen 

func (p DhcpRelayAgentPacket) GetHeaderLen() byte

========================HELPER FUNCTIONS FOR DHCP ========================= 

0               1               2               3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|     op (1)    |   htype (1)   |   hlen (1)    |   hops (1)    |
+---------------+---------------+---------------+---------------+
|                            xid (4)                            |
+-------------------------------+-------------------------------+
|           secs (2)            |           flags (2)           |
+-------------------------------+-------------------------------+
|                          ciaddr  (4)                          |
+---------------------------------------------------------------+
|                          yiaddr  (4)                          |
+---------------------------------------------------------------+
|                          siaddr  (4)                          |
+---------------------------------------------------------------+
|                          giaddr  (4)                          |
+---------------------------------------------------------------+
|                                                               |
|                          chaddr  (16)                         |
|                                                               |
|                                                               |
+---------------------------------------------------------------+
|                                                               |
|                          sname   (64)                         |
+---------------------------------------------------------------+
|                                                               |
|                          file    (128)                        |
+---------------------------------------------------------------+
|                                                               |
|                          options (variable)                   |
+---------------------------------------------------------------+

* ========================GET API's FOR ABOVE MESSAGE FORMAT==================

func (DhcpRelayAgentPacket) GetHeaderType 

func (p DhcpRelayAgentPacket) GetHeaderType() byte

func (DhcpRelayAgentPacket) GetHops 

func (p DhcpRelayAgentPacket) GetHops() byte

func (DhcpRelayAgentPacket) GetOpCode 

func (p DhcpRelayAgentPacket) GetOpCode() OpCode

func (DhcpRelayAgentPacket) GetSIAddr 

func (p DhcpRelayAgentPacket) GetSIAddr() net.IP

func (DhcpRelayAgentPacket) GetSName 

func (p DhcpRelayAgentPacket) GetSName() []byte

BOOTP legacy

func (DhcpRelayAgentPacket) GetSecs 

func (p DhcpRelayAgentPacket) GetSecs() []byte

func (DhcpRelayAgentPacket) GetXId 

func (p DhcpRelayAgentPacket) GetXId() []byte

func (DhcpRelayAgentPacket) GetYIAddr 

func (p DhcpRelayAgentPacket) GetYIAddr() net.IP

func (*DhcpRelayAgentPacket) PadToMinSize 

func (p *DhcpRelayAgentPacket) PadToMinSize()

func (DhcpRelayAgentPacket) ParseDhcpOptions 

func (p DhcpRelayAgentPacket) ParseDhcpOptions() DhcpRelayAgentOptions

Parses the packet's options into an Options map

func (DhcpRelayAgentPacket) SetCHAddr 

func (p DhcpRelayAgentPacket) SetCHAddr(a net.HardwareAddr)

func (DhcpRelayAgentPacket) SetCIAddr 

func (p DhcpRelayAgentPacket) SetCIAddr(ip net.IP)

func (DhcpRelayAgentPacket) SetCookie 

func (p DhcpRelayAgentPacket) SetCookie(cookie []byte)

func (DhcpRelayAgentPacket) SetFile 

func (p DhcpRelayAgentPacket) SetFile(file []byte)

BOOTP legacy

func (DhcpRelayAgentPacket) SetFlags 

func (p DhcpRelayAgentPacket) SetFlags(flags []byte)

func (DhcpRelayAgentPacket) SetGIAddr 

func (p DhcpRelayAgentPacket) SetGIAddr(ip net.IP)

func (DhcpRelayAgentPacket) SetHeaderType 

func (p DhcpRelayAgentPacket) SetHeaderType(hType byte)

func (DhcpRelayAgentPacket) SetHops 

func (p DhcpRelayAgentPacket) SetHops(hops byte)

func (DhcpRelayAgentPacket) SetOpCode 

func (p DhcpRelayAgentPacket) SetOpCode(c OpCode)

* ========================SET API's FOR ABOVE MESSAGE FORMAT==================

func (DhcpRelayAgentPacket) SetSIAddr 

func (p DhcpRelayAgentPacket) SetSIAddr(ip net.IP)

func (DhcpRelayAgentPacket) SetSName 

func (p DhcpRelayAgentPacket) SetSName(sName []byte)

BOOTP legacy

func (DhcpRelayAgentPacket) SetSecs 

func (p DhcpRelayAgentPacket) SetSecs(secs []byte)

func (DhcpRelayAgentPacket) SetXId 

func (p DhcpRelayAgentPacket) SetXId(xId []byte)

func (DhcpRelayAgentPacket) SetYIAddr 

func (p DhcpRelayAgentPacket) SetYIAddr(ip net.IP)

type DhcpRelayClientJson 

type DhcpRelayClientJson struct {
	Name string `json:Name`
	Port int    `json:Port`
}

func DhcpRelayGetClient 

func DhcpRelayGetClient(logger *logging.Writer, fileName string,
	process string) (*DhcpRelayClientJson, error)

type DhcpRelayPktChannel 

type DhcpRelayPktChannel struct {
	// contains filtered or unexported fields
}

type DhcpRelayServiceHandler 

type DhcpRelayServiceHandler struct {
}

* Global DS local to DHCP RELAY AGENT

func NewDhcpRelayServer 

func NewDhcpRelayServer() *DhcpRelayServiceHandler

func (*DhcpRelayServiceHandler) CreateDhcpRelayGlobal 

func (h *DhcpRelayServiceHandler) CreateDhcpRelayGlobal(config *dhcprelayd.DhcpRelayGlobal) (bool, error)

func (*DhcpRelayServiceHandler) CreateDhcpRelayIntf 

func (h *DhcpRelayServiceHandler) CreateDhcpRelayIntf(config *dhcprelayd.DhcpRelayIntf) (bool, error)

func (*DhcpRelayServiceHandler) DeleteDhcpRelayGlobal 

func (h *DhcpRelayServiceHandler) DeleteDhcpRelayGlobal(config *dhcprelayd.DhcpRelayGlobal) (bool, error)

func (*DhcpRelayServiceHandler) DeleteDhcpRelayIntf 

func (h *DhcpRelayServiceHandler) DeleteDhcpRelayIntf(config *dhcprelayd.DhcpRelayIntf) (bool, error)

func (*DhcpRelayServiceHandler) GetBulkDhcpRelayHostDhcpState 

func (h *DhcpRelayServiceHandler) GetBulkDhcpRelayHostDhcpState(fromIndex dhcprelayd.Int,
	count dhcprelayd.Int) (hostEntry *dhcprelayd.DhcpRelayHostDhcpStateGetInfo, err error)

func (*DhcpRelayServiceHandler) GetBulkDhcpRelayIntfServerState 

func (h *DhcpRelayServiceHandler) GetBulkDhcpRelayIntfServerState(fromIndex dhcprelayd.Int,
	count dhcprelayd.Int) (intfServerEntry *dhcprelayd.DhcpRelayIntfServerStateGetInfo, err error)

func (*DhcpRelayServiceHandler) GetBulkDhcpRelayIntfState 

func (h *DhcpRelayServiceHandler) GetBulkDhcpRelayIntfState(fromIndex dhcprelayd.Int,
	count dhcprelayd.Int) (intfEntry *dhcprelayd.DhcpRelayIntfStateGetInfo, err error)

func (*DhcpRelayServiceHandler) GetDhcpRelayHostDhcpState 

func (h *DhcpRelayServiceHandler) GetDhcpRelayHostDhcpState(macAddr string) (*dhcprelayd.DhcpRelayHostDhcpState, error)

func (*DhcpRelayServiceHandler) GetDhcpRelayIntfServerState 

func (h *DhcpRelayServiceHandler) GetDhcpRelayIntfServerState(ifIndex int32) (*dhcprelayd.DhcpRelayIntfServerState, error)

func (*DhcpRelayServiceHandler) GetDhcpRelayIntfState 

func (h *DhcpRelayServiceHandler) GetDhcpRelayIntfState(ifIndex int32) (*dhcprelayd.DhcpRelayIntfState, error)

func (*DhcpRelayServiceHandler) UpdateDhcpRelayGlobal 

func (h *DhcpRelayServiceHandler) UpdateDhcpRelayGlobal(origconfig *dhcprelayd.DhcpRelayGlobal, newconfig *dhcprelayd.DhcpRelayGlobal,
	attrset []bool, op []*dhcprelayd.PatchOpInfo) (bool, error)

func (*DhcpRelayServiceHandler) UpdateDhcpRelayIntf 

func (h *DhcpRelayServiceHandler) UpdateDhcpRelayIntf(origconfig *dhcprelayd.DhcpRelayIntf, newconfig *dhcprelayd.DhcpRelayIntf,
	attrset []bool, op []*dhcprelayd.PatchOpInfo) (bool, error)

type IPv4Intf 

type IPv4Intf struct {
	IpAddr  string
	IfIndex int32
}

type MessageType 

type MessageType byte // Option 53

const (
	DhcpDiscover MessageType = 1 // From Client
	DhcpOffer    MessageType = 2 // From Server
	DhcpRequest  MessageType = 3 // From Client
	DhcpDecline  MessageType = 4 // From Client
	DhcpACK      MessageType = 5 // From Server
	DhcpNAK      MessageType = 6 // From Server
	DhcpRelease  MessageType = 7 // From Client
	DhcpInform   MessageType = 8 // From Client
)

DHCP Client/Server Message Type 53

type OpCode 

type OpCode byte
const (
	Request OpCode = 1 // From Client
	Reply   OpCode = 2 // From Server
)

Dhcp OpCodes Types

type Option 

type Option struct {
	Code  DhcpOptionCode
	Value []byte
}

Source Files

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