com.jcraft.jsch.Session Class Reference

A Session represents a connection to a SSH server. More...

Collaboration diagram for com.jcraft.jsch.Session:

Public Member Functions
void	connect () throws JSchException
	opens the connection, using the timeout set with setTimeout.
void	connect (int connectTimeout) throws JSchException
	opens the connection, using the specified timeout.
void	rekey () throws Exception
	initiates a new key exchange.
Protected Attributes
boolean	daemon_thread = false
Package Functions
	Session (JSch jsch) throws JSchException
	creates a new session object from a JSch.
Package Attributes
String[]	guess = null
boolean	x11_forwarding = false
boolean	agent_forwarding = false
InputStream	in = null
OutputStream	out = null
Buffer	buf
Packet	packet
SocketFactory	socket_factory = null
String	host = "127.0.0.1"
int	port = 22
String	username = null
byte[]	password = null
JSch	jsch
Static Package Attributes
static final int	SSH_MSG_DISCONNECT = 1
static final int	SSH_MSG_IGNORE = 2
static final int	SSH_MSG_UNIMPLEMENTED = 3
static final int	SSH_MSG_DEBUG = 4
static final int	SSH_MSG_SERVICE_REQUEST = 5
static final int	SSH_MSG_SERVICE_ACCEPT = 6
static final int	SSH_MSG_KEXINIT = 20
static final int	SSH_MSG_NEWKEYS = 21
static final int	SSH_MSG_KEXDH_INIT = 30
static final int	SSH_MSG_KEXDH_REPLY = 31
static final int	SSH_MSG_KEX_DH_GEX_GROUP = 31
static final int	SSH_MSG_KEX_DH_GEX_INIT = 32
static final int	SSH_MSG_KEX_DH_GEX_REPLY = 33
static final int	SSH_MSG_KEX_DH_GEX_REQUEST = 34
static final int	SSH_MSG_GLOBAL_REQUEST = 80
static final int	SSH_MSG_REQUEST_SUCCESS = 81
static final int	SSH_MSG_REQUEST_FAILURE = 82
static final int	SSH_MSG_CHANNEL_OPEN = 90
static final int	SSH_MSG_CHANNEL_OPEN_CONFIRMATION = 91
static final int	SSH_MSG_CHANNEL_OPEN_FAILURE = 92
static final int	SSH_MSG_CHANNEL_WINDOW_ADJUST = 93
static final int	SSH_MSG_CHANNEL_DATA = 94
static final int	SSH_MSG_CHANNEL_EXTENDED_DATA = 95
static final int	SSH_MSG_CHANNEL_EOF = 96
static final int	SSH_MSG_CHANNEL_CLOSE = 97
static final int	SSH_MSG_CHANNEL_REQUEST = 98
static final int	SSH_MSG_CHANNEL_SUCCESS = 99
static final int	SSH_MSG_CHANNEL_FAILURE = 100
static Random	random
static final int	buffer_margin
Private Member Functions
KeyExchange	receive_kexinit (Buffer buf) throws Exception
	receives and interprets an SSH_MSG_KEXINIT packet from the server.
void	send_kexinit () throws Exception
void	send_newkeys () throws Exception
void	checkHost (String chost, int port, KeyExchange kex) throws JSchException
Private Attributes
byte[]	V_S
byte[]	V_C = Util.str2byte("SSH-2.0-"+version)
byte[]	I_C
byte[]	I_S
byte[]	K_S
byte[]	session_id
byte[]	IVc2s
byte[]	IVs2c
byte[]	Ec2s
byte[]	Es2c
byte[]	MACc2s
byte[]	MACs2c
int	seqi = 0
int	seqo = 0
Cipher	s2ccipher
Cipher	c2scipher
MAC	s2cmac
MAC	c2smac
byte[]	s2cmac_result1
byte[]	s2cmac_result2
Compression	deflater
Compression	inflater
IO	io
Socket	socket
int	timeout = 0
volatile boolean	isConnected = false
boolean	isAuthed = false
Thread	connectThread = null
Object	lock = new Object()
java.util.Hashtable	config = null
Proxy	proxy = null
UserInfo	userinfo
String	hostKeyAlias = null
int	serverAliveInterval = 0
int	serverAliveCountMax = 1
long	kex_start_time = 0L
boolean	in_kex = false
Static Private Attributes
static final String	version = "JSCH-0.1.45"
static final int	PACKET_MAX_SIZE = 256 * 1024

Detailed Description

A Session represents a connection to a SSH server.

One session can contain multiple Channels of various types, created with openChannel.

A session is opened with connect() and closed with disconnect. The fact that a Session implements Runnable is an implementation detail.

Definition at line 46 of file Session.java.

Constructor & Destructor Documentation

com.jcraft.jsch.Session.Session ( JSch jsch ) throws JSchException [package]

creates a new session object from a JSch.

Definition at line 167 of file Session.java.

References com.jcraft.jsch.Session.buf, com.jcraft.jsch.Session.jsch, and com.jcraft.jsch.Session.packet.

Member Function Documentation

void com.jcraft.jsch.Session.checkHost	(	String	chost,
		int	port,
		KeyExchange	kex
	)			throws JSchException `[private]`

Definition at line 680 of file Session.java.

References com.jcraft.jsch.HostKeyRepository.add(), com.jcraft.jsch.HostKeyRepository.check(), com.jcraft.jsch.Session.host, com.jcraft.jsch.Session.hostKeyAlias, com.jcraft.jsch.Session.jsch, com.jcraft.jsch.Session.K_S, com.jcraft.jsch.Session.port, com.jcraft.jsch.HostKeyRepository.remove(), and com.jcraft.jsch.Session.userinfo.

Referenced by com.jcraft.jsch.Session.connect().

void com.jcraft.jsch.Session.connect ( int connectTimeout ) throws JSchException

opens the connection, using the specified timeout.

Exceptions:

JSchException

if this session is already connected, or some other error occurs during connecting. (If there was some other exception, it is appended as the cause to the JSchException thrown.)

Definition at line 189 of file Session.java.