winifmib

package
v0.0.0-...-e0ed648 Latest Latest
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 Go to latest Published: Mar 7, 2024 License: Apache-2.0 Imports: 3 Imported by: 0

Documentation

Rendered for windows/amd64

Index

Constants

View Source 
const (
	MibIfEntryNormal                  = MibIfEntryLevel(0)
	MibIfEntryNormalWithoutStatistics = MibIfEntryLevel(2)
	IfMaxStringSize                   = 256
	IfMaxPhysAddressLength            = 32
)

Variables

View Source 
var MibIfRow2Size = unsafe.Sizeof(MibIfRow2{})

Functions

func FreeMibTable 

func FreeMibTable(memory PMibIfTable)

Types

type IfOperStatus 

type IfOperStatus uint32

type InterfaceAndOperStatusFlags 

type InterfaceAndOperStatusFlags [8]byte // this field is padded in the struct and is not just 1 byte

type MibIfEntryLevel 

type MibIfEntryLevel uint32

type MibIfRow2 

type MibIfRow2 struct {
	InterfaceLuid               NetLUID
	InterfaceIndex              NetIfIndex
	InterfaceGuid               windows.GUID
	Alias                       [IfMaxStringSize + 1]uint16
	Description                 [IfMaxStringSize + 1]uint16
	PhysicalAddressLength       Ulong
	PhysicalAddress             [IfMaxPhysAddressLength]byte
	PermanentPhysicalAddress    [IfMaxPhysAddressLength]byte
	Mtu                         Ulong
	Type                        Ulong
	TunnelType                  TunnelType
	MediaType                   NdisMedium
	PhysicalMediumType          NdisPhysicalMedium
	AccessType                  NetIfAccessType
	DirectionType               NetIfDirectionType
	InterfaceAndOperStatusFlags InterfaceAndOperStatusFlags
	OperStatus                  IfOperStatus
	AdminStatus                 NetIfAdminStatus
	MediaConnectState           NetIfMediaConnectState
	NetworkGuid                 windows.GUID
	ConnectionType              NetIfConnectionType
	TransmitLinkSpeed           uint64
	ReceiveLinkSpeed            uint64
	InOctets                    uint64
	InUcastPkts                 uint64
	InNUcastPkts                uint64
	InDiscards                  uint64
	InErrors                    uint64
	InUnknownProtos             uint64
	InUcastOctets               uint64
	InMulticastOctets           uint64
	InBroadcastOctets           uint64
	OutOctets                   uint64
	OutUcastPkts                uint64
	OutNUcastPkts               uint64
	OutDiscards                 uint64
	OutErrors                   uint64
	OutUcastOctets              uint64
	OutMulticastOctets          uint64
	OutBroadcastOctets          uint64
	OutQLen                     uint64
}
MibIfRow2 from https://docs.microsoft.com/en-us/windows/win32/api/netioapi/ns-netioapi-mib_if_row2

Important: This C struct is padded by the C compiler, so 1 byte fields are actually 8 byte Go uses a different padding scheme depending on GOARCH... the windows C compiler does not...

func GetIfEntry2Ex 

func GetIfEntry2Ex(index NetIfIndex, stats bool) (*MibIfRow2, error)

func (*MibIfRow2) NetworkInterface 

func (r *MibIfRow2) NetworkInterface() *NetworkInterface

type MibIfTable2 

type MibIfTable2 struct {
	NumEntries Ulong

	// Table isn't a pointer but a C array value... C doesn't care that the array field length is 1, so in C we
	// can iterate over this. In Go this is not allowed, so have to calculate the actual memory address.
	Table [1]MibIfRow2
	// contains filtered or unexported fields
}
MibIfTable2 from https://docs.microsoft.com/en-us/windows/win32/api/netioapi/ns-netioapi-mib_if_table2

Important: This C struct is padded by the C compiler, so 1 byte fields are actually 8 byte Go uses a different padding scheme depending on GOARCH... the windows C compiler does not...

In this case NumEntires IS a 4 byte value, BUT the C compiler adds 4 bytes for memory alignment... Go would add the memory at the end, so this would break everything.

func GetIfTable2Ex 

func GetIfTable2Ex(stats bool) (*MibIfTable2, error)

GetIfTable2Ex generates interface statistics of all interfaces with one syscall. Unfortunatly it uses dynamic memory magic and must be freed with FreeMibTable! The syscall safes a pointer to the magic memory space, so this is why we have to allocate the pointer and call the syscall with a pointer pointer.

func (*MibIfTable2) Close 

func (t *MibIfTable2) Close()

func (*MibIfTable2) Get 

func (t *MibIfTable2) Get(index Ulong) *MibIfRow2

Get returns a pointer to a value in the C array

func (*MibIfTable2) Slice 

func (t *MibIfTable2) Slice() []*MibIfRow2

type NdisMedium 

type NdisMedium uint32

type NdisPhysicalMedium 

type NdisPhysicalMedium uint32

type NetIfAccessType 

type NetIfAccessType uint32

type NetIfAdminStatus 

type NetIfAdminStatus uint32

type NetIfConnectionType 

type NetIfConnectionType uint32

type NetIfDirectionType 

type NetIfDirectionType uint32

type NetIfIndex 

type NetIfIndex Ulong

type NetIfMediaConnectState 

type NetIfMediaConnectState uint32

type NetLUID 

type NetLUID uint64

type NetworkInterface 

type NetworkInterface struct {
	Name            string
	BytesReceived   uint64 //InOctets
	DropIn          uint64 //InDiscards
	ErrorIn         uint64 //InErrors
	BytesSent       uint64 //OutOctets
	DropOut         uint64 //OutDiscards
	ErrorOut        uint64 //OutErrors
	PacketsSent     uint64 //OutUcastPkts+OutNUcastPkts
	PacketsReceived uint64 //InUcastPkts+InNUcastPkts
}

func NetworkInterfaceStatistics 

func NetworkInterfaceStatistics() ([]*NetworkInterface, error)

type PMibIfTable 

type PMibIfTable *MibIfTable2

type TunnelType 

type TunnelType uint32

type Ulong 

type Ulong uint32

Source Files

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