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/*
* This file is part of the SSH Library
*
* Copyright (c) 2009 by Aris Adamantiadis
*
* The SSH Library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* The SSH Library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the SSH Library; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
#ifndef SESSION_H_
#define SESSION_H_
#include "libssh/priv.h"
#include "libssh/packet.h"
#include "libssh/pcap.h"
typedef struct ssh_kbdint_struct* ssh_kbdint;
struct ssh_session_struct {
struct error_struct error;
struct socket *socket;
char *serverbanner;
char *clientbanner;
int protoversion;
int server;
int client;
int openssh;
uint32_t send_seq;
uint32_t recv_seq;
/* status flags */
int closed;
int closed_by_except;
int connected;
/* !=0 when the user got a session handle */
int alive;
/* two previous are deprecated */
int auth_service_asked;
/* socket status */
int blocking; // functions should block
ssh_string banner; /* that's the issue banner from
the server */
char *remotebanner; /* that's the SSH- banner from
remote host. */
char *discon_msg; /* disconnect message from
the remote host */
ssh_buffer in_buffer;
PACKET in_packet;
ssh_buffer out_buffer;
/* the states are used by the nonblocking stuff to remember */
/* where it was before being interrupted */
int packet_state;
int dh_handshake_state;
ssh_string dh_server_signature; //information used by dh_handshake.
KEX server_kex;
KEX client_kex;
ssh_buffer in_hashbuf;
ssh_buffer out_hashbuf;
struct ssh_crypto_struct *current_crypto;
struct ssh_crypto_struct *next_crypto; /* next_crypto is going to be used after a SSH2_MSG_NEWKEYS */
ssh_channel channels; /* linked list of channels */
int maxchannel;
int exec_channel_opened; /* version 1 only. more
info in channels1.c */
ssh_agent agent; /* ssh agent */
/* keyb interactive data */
struct ssh_kbdint_struct *kbdint;
int version; /* 1 or 2 */
/* server host keys */
ssh_private_key rsa_key;
ssh_private_key dsa_key;
/* auths accepted by server */
int auth_methods;
int hostkeys; /* contains type of host key wanted by client, in server impl */
struct ssh_list *ssh_message_list; /* list of delayed SSH messages */
int (*ssh_message_callback)( struct ssh_session_struct *session, ssh_message msg);
int log_verbosity; /*cached copy of the option structure */
int log_indent; /* indentation level in enter_function logs */
ssh_callbacks callbacks; /* Callbacks to user functions */
/* options */
#ifdef WITH_PCAP
ssh_pcap_context pcap_ctx; /* pcap debugging context */
#endif
char *username;
char *host;
char *bindaddr; /* TODO: check if needed */
char *xbanner; /* TODO: looks like it is not needed */
struct ssh_list *identity;
char *sshdir;
char *knownhosts;
char *wanted_methods[10];
unsigned long timeout; /* seconds */
unsigned long timeout_usec;
unsigned int port;
socket_t fd;
int ssh2;
int ssh1;
char *ProxyCommand;
};
int ssh_handle_packets(ssh_session session);
void ssh_global_request_handle(ssh_session session);
#endif /* SESSION_H_ */
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