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#include "includes.h"
#include "session.h"
#include "dbutil.h"
#include "kex.h"
#include "ssh.h"
#include "packet.h"
#include "tcpfwd-direct.h"
#include "tcpfwd-remote.h"
#include "channel.h"
#include "random.h"
static void cli_remoteclosed();
static void cli_sessionloop();
struct clientsession cli_ses; /* GLOBAL */
static const packettype cli_packettypes[] = {
/* TYPE, AUTHREQUIRED, FUNCTION */
{SSH_MSG_KEXINIT, recv_msg_kexinit},
{SSH_MSG_KEXDH_REPLY, recv_msg_kexdh_reply}, // client
{SSH_MSG_NEWKEYS, recv_msg_newkeys},
{SSH_MSG_CHANNEL_DATA, recv_msg_channel_data},
{SSH_MSG_CHANNEL_WINDOW_ADJUST, recv_msg_channel_window_adjust},
{SSH_MSG_GLOBAL_REQUEST, recv_msg_global_request_remotetcp},
{SSH_MSG_CHANNEL_REQUEST, recv_msg_channel_request},
{SSH_MSG_CHANNEL_OPEN, recv_msg_channel_open},
{SSH_MSG_CHANNEL_EOF, recv_msg_channel_eof},
{SSH_MSG_CHANNEL_CLOSE, recv_msg_channel_close},
{SSH_MSG_CHANNEL_OPEN_CONFIRMATION, recv_msg_channel_open_confirmation},
{SSH_MSG_CHANNEL_OPEN_FAILURE, recv_msg_channel_open_failure},
{0, 0} /* End */
};
static const struct ChanType *cli_chantypes[] = {
// &clichansess,
/* &chan_tcpdirect etc, though need to only allow if we've requested
* that forwarding */
NULL /* Null termination */
};
void cli_session(int sock, char* remotehost) {
crypto_init();
common_session_init(sock, remotehost);
chaninitialise(cli_chantypes);
/* For printing "remote host closed" for the user */
session_remoteclosed = cli_remoteclosed;
/* packet handlers */
ses.packettypes = cli_packettypes;
/* Ready to go */
sessinitdone = 1;
/* Exchange identification */
session_identification();
seedrandom();
send_msg_kexinit();
/* XXX here we do stuff differently */
session_loop(cli_sessionloop);
/* Not reached */
}
static void cli_sessionloop() {
switch (cli_ses.state) {
KEXINIT_RCVD:
/* We initiate the KEX. If DH wasn't the correct type, the KEXINIT
* negotiation would have failed. */
send_msg_kexdh_init();
cli_ses.state = KEXDH_INIT_SENT;
break;
default:
break;
}
if (cli_ses.donefirstkex && !cli_ses.authdone) {
}
/* called when the remote side closes the connection */
static void cli_remoteclosed() {
/* XXX TODO perhaps print a friendlier message if we get this but have
* already sent/received disconnect message(s) ??? */
close(ses.sock);
ses.sock = -1;
dropbear_exit("%s closed the connection", ses.remotehost);
}
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