network

package
v0.0.0-...-3f97f43 Latest Latest
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 Go to latest Published: May 28, 2022 License: MIT Imports: 18 Imported by: 0

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Index

Constants

View Source 
const (
	DefaultAddress string = "(Description=(Address=(Protocol=tcp)(IP=loopback)(port=1521))(CONNECT_DATA=(SID="
)

Variables

This section is empty.

Functions

This section is empty.

Types

type AcceptPacket 

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

type AcceptPacket Packet

type AddressResolution 

type AddressResolution struct {
	InstanceName string
	TNSAddress   string
}

type AdvNegoSeviceInfo 

type AdvNegoSeviceInfo struct {
	AuthService []string
}

type BindError 

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

type ClientInfo 

type ClientInfo struct {
	ProgramPath string
	ProgramName string
	UserName    string
	Password    string
	HostName    string
	DomainName  string
	DriverName  string
	PID         int
}

type ConnectPacket 

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

type ConnectPacket Packet

type ConnectionOption 

type ConnectionOption struct {
	ClientInfo
	DatabaseInfo
	SessionInfo
	AdvNegoSeviceInfo
	Tracer       trace.Tracer
	PrefetchRows int
}

func (*ConnectionOption) AddServer 

func (op *ConnectionOption) AddServer(server ServerAddr)

func (*ConnectionOption) ConnectionData 

func (op *ConnectionOption) ConnectionData() string

func (*ConnectionOption) GetActiveServer 

func (op *ConnectionOption) GetActiveServer(jump bool) *ServerAddr

func (*ConnectionOption) UpdateDatabaseInfo 

func (op *ConnectionOption) UpdateDatabaseInfo(connStr string) error

type Data 

type Data interface {
	Write(session *Session) error
	Read(session *Session) error
}

type DataPacket 

type DataPacket struct {
	Packet
	// contains filtered or unexported fields
}

type DatabaseInfo 

type DatabaseInfo struct {
	UserID  string
	Servers []ServerAddr

	SID          string
	ServiceName  string
	InstanceName string
	DBName       string
	AuthType     int
	// contains filtered or unexported fields
}

type MarkerPacket 

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

type OracleError 

type OracleError struct {
	ErrCode int
	ErrMsg  string
}

func (*OracleError) Error 

func (err *OracleError) Error() string

type Packet 

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

type PacketInterface 

type PacketInterface interface {
	// contains filtered or unexported methods
}

type PacketType 

type PacketType uint8
const (
	CONNECT  PacketType = 1
	ACCEPT   PacketType = 2
	ACK      PacketType = 3
	REFUSE   PacketType = 4
	REDIRECT PacketType = 5
	DATA     PacketType = 6
	NULL     PacketType = 7
	ABORT    PacketType = 9
	RESEND   PacketType = 11
	MARKER   PacketType = 12
	ATTN     PacketType = 13
	CTRL     PacketType = 14
	HIGHEST  PacketType = 19
)

type RedirectPacket 

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

type RefusePacket 

type RefusePacket struct {

	//dataOffset uint16
	//Len uint16
	//packetType PacketType
	//Flag uint8
	Err          OracleError
	SystemReason uint8
	UserReason   uint8
	// contains filtered or unexported fields
}

type ServerAddr 

type ServerAddr struct {
	Protocol string
	Addr     string
	Port     int
}

func (*ServerAddr) IsEqual 

func (serv *ServerAddr) IsEqual(input *ServerAddr) bool

type Session 

type Session struct {

	//connOption        ConnectionOption
	Context *SessionContext

	TimeZone          []byte
	TTCVersion        uint8
	HasEOSCapability  bool
	HasFSAPCapability bool
	Summary           *SummaryObject

	StrConv         converters.IStringConverter
	UseBigClrChunks bool
	UseBigScn       bool
	ClrChunkSize    int
	SSL             struct {
		CertificateRequest []*x509.CertificateRequest
		PrivateKeys        []*rsa.PrivateKey
		Certificates       []*x509.Certificate
		// contains filtered or unexported fields
	}
	// contains filtered or unexported fields
}

func NewSession 

func NewSession(connOption *ConnectionOption) *Session

func (*Session) Connect 

func (session *Session) Connect(ctx context.Context) error

Connect perform network connection on address:port check if the client need to use SSL then send connect packet to the server and receive either accept, redirect or refuse packet

func (*Session) Disconnect 

func (session *Session) Disconnect()

Disconnect close the network and release resources

func (*Session) EndContext 

func (session *Session) EndContext()

func (*Session) GetByte 

func (session *Session) GetByte() (uint8, error)

GetByte read one uint8 from input buffer

func (*Session) GetBytes 

func (session *Session) GetBytes(length int) ([]byte, error)

GetBytes read specified number of bytes from input buffer

func (*Session) GetClr 

func (session *Session) GetClr() (output []byte, err error)

GetClr reed variable length bytearray from input buffer

func (*Session) GetDlc 

func (session *Session) GetDlc() (output []byte, err error)

GetDlc read variable length bytearray from input buffer

func (*Session) GetError 

func (session *Session) GetError() *OracleError

GetError Return the error in form or OracleError

func (*Session) GetInt 

func (session *Session) GetInt(size int, compress bool, bigEndian bool) (int, error)

GetInt read int number from input buffer. you should specify the size of the int and either compress or not and stored as big endian or not

func (*Session) GetInt64 

func (session *Session) GetInt64(size int, compress bool, bigEndian bool) (int64, error)

GetInt64 read int64 number from input buffer.

you should specify the size of the int and either compress or not and stored as big endian or not

func (*Session) GetKeyVal 

func (session *Session) GetKeyVal() (key []byte, val []byte, num int, err error)

GetKeyVal read key, value (in form of bytearray), a number flag from input buffer

func (*Session) GetNullTermString 

func (session *Session) GetNullTermString(maxSize int) (result string, err error)

GetNullTermString read a null terminated string from input buffer

func (*Session) GetString 

func (session *Session) GetString(length int) (string, error)

GetString read a string data from input buffer

func (*Session) HasError 

func (session *Session) HasError() bool

HasError Check if the session has error or not

func (*Session) LoadSSLData 

func (session *Session) LoadSSLData(certs, keys, certRequests [][]byte) error

LoadSSLData load data required for SSL connection like certificate, private keys and certificate requests

func (*Session) LoadState 

func (session *Session) LoadState() (oldState *SessionState)

LoadState load last saved session state and return the current state if this is the only session state available set session state memory to nil

func (*Session) PutBytes 

func (session *Session) PutBytes(data ...byte)

PutBytes write bytes of data to output buffer

func (*Session) PutClr 

func (session *Session) PutClr(data []byte)

PutClr write variable length bytearray to output buffer

func (*Session) PutInt 

func (session *Session) PutInt(number interface{}, size uint8, bigEndian bool, compress bool)

PutInt write int number with size entered either use bigEndian or not and use compression or not to

func (*Session) PutKeyVal 

func (session *Session) PutKeyVal(key []byte, val []byte, num uint8)

PutKeyVal write key, val (in form of bytearray) and flag number to output buffer

func (*Session) PutKeyValString 

func (session *Session) PutKeyValString(key string, val string, num uint8)

PutKeyValString write key, val (in form of string) and flag number to output buffer

func (*Session) PutString 

func (session *Session) PutString(data string)

PutString write a string data to output buffer

func (*Session) PutUint 

func (session *Session) PutUint(number interface{}, size uint8, bigEndian bool, compress bool)

PutUint write uint number with size entered either use bigEndian or not and use compression or not to

func (*Session) ResetBuffer 

func (session *Session) ResetBuffer()

ResetBuffer empty in and out buffer and set read index to 0

func (*Session) SaveState 

func (session *Session) SaveState(newState *SessionState)

SaveState save current session state and accept new state if new state is nil the session will be resetted

func (*Session) StartContext 

func (session *Session) StartContext(ctx context.Context)

func (*Session) Write 

func (session *Session) Write() error
func (session *Session) Debug() {
	//if session.index > 350 && session.index < 370 {
	fmt.Println("index: ", session.index)
	fmt.Printf("data buffer: %#v\n", session.InBuffer[session.index:session.index+30])
	//oldIndex := session.index
	//fmt.Println(session.GetClr())
	//session.index = oldIndex
	//}
}

func (session *Session) DumpIn() {
	log.Printf("%#v\n", session.InBuffer)
}

func (session *Session) DumpOut() {
	log.Printf("%#v\n", session.OutBuffer)
}

Write send data store in output buffer through network

if data bigger than SessionDataUnit it should be divided into segment and each segment sent in data packet

func (*Session) WriteBytes 

func (session *Session) WriteBytes(buffer *bytes.Buffer, data ...byte)

func (*Session) WriteClr 

func (session *Session) WriteClr(buffer *bytes.Buffer, data []byte)

func (*Session) WriteInt 

func (session *Session) WriteInt(buffer *bytes.Buffer, number interface{}, size uint8, bigEndian, compress bool)

WriteInt write int data to external buffer

func (*Session) WriteKeyVal 

func (session *Session) WriteKeyVal(buffer *bytes.Buffer, key []byte, val []byte, num uint8)

WriteKeyVal write key, val, flag number to external buffer

func (*Session) WriteKeyValString 

func (session *Session) WriteKeyValString(buffer *bytes.Buffer, key string, val string, num uint8)

WriteKeyValString write key, val (in form of string) and flag number to external buffer

func (*Session) WriteUint 

func (session *Session) WriteUint(buffer *bytes.Buffer, number interface{}, size uint8, bigEndian, compress bool)

WriteUint write uint data to external buffer

type SessionContext 

type SessionContext struct {
	//conn net.Conn
	ConnOption *ConnectionOption
	//PortNo int
	//InstanceName string
	//HostName string
	//IPAddress string
	//Protocol string
	//ServiceName string
	SID []byte
	//ConnectData string
	Version           uint16
	LoVersion         uint16
	Options           uint16
	NegotiatedOptions uint16
	OurOne            uint16
	Histone           uint16
	ReconAddr         string

	ACFL0               uint8
	ACFL1               uint8
	SessionDataUnit     uint32
	TransportDataUnit   uint32
	UsingAsyncReceivers bool
	IsNTConnected       bool
	OnBreakReset        bool
	GotReset            bool
	AdvancedService     struct {
		CryptAlgo  security.OracleNetworkEncryption
		HashAlgo   security.OracleNetworkDataIntegrity
		SessionKey []byte
		IV         []byte
	}
	// contains filtered or unexported fields
}

func NewSessionContext 

func NewSessionContext(connOption *ConnectionOption) *SessionContext

type SessionInfo 

type SessionInfo struct {
	SSLVersion            string
	Timeout               time.Duration
	UnixAddress           string
	TransportDataUnitSize uint32
	SessionDataUnitSize   uint32
	Protocol              string
	SSL                   bool
	SSLVerify             bool
}

type SessionState 

type SessionState struct {
	InBuffer  []byte
	OutBuffer bytes.Buffer
	// contains filtered or unexported fields
}

type SummaryObject 

type SummaryObject struct {
	EndOfCallStatus      int // uint32
	EndToEndECIDSequence int // uint16
	CurRowNumber         int // uint32
	RetCode              int // uint16

	CursorID int // uint16

	Flags int // uint16

	ErrorMessage []byte
	// contains filtered or unexported fields
}

func NewSummary 

func NewSummary(session *Session) (*SummaryObject, error)

type WarningObject 

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

func NewWarningObject 

func NewWarningObject(session *Session) (*WarningObject, error)

Source Files

View all Source files

Directories

Path Synopsis
md4
Package md4 implements the MD4 hash algorithm as defined in RFC 1320.
 Package md4 implements the MD4 hash algorithm as defined in RFC 1320.

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