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/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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xrdp: A Remote Desktop Protocol server.
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Copyright (C) Jay Sorg 2005-2006
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*/
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/**
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*
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* @file scp.c
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* @brief scp (sesman control protocol) common code
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* scp (sesman control protocol) common code
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* This code controls which version is being used and starts the appropriate process
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* @author Jay Sorg, Simone Fedele
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*
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*/
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#include "sesman.h"
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/******************************************************************************/
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void DEFAULT_CC
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scp_process_start(int sck)
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{
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int socket;
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int version;
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int size;
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struct stream* in_s;
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struct stream* out_s;
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/* making a local copy of the socket */
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/* sck should NEVER be used after lock_socket_release() */
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/* probably this is just paranoia */
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socket = sck;
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#warning locking disabled
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// lock_socket_release();
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make_stream(in_s);
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make_stream(out_s);
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init_stream(in_s, 8192);
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if (tcp_force_recv(socket, in_s->data, 8) == 0)
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{
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in_uint32_be(in_s, version);
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in_uint32_be(in_s, size);
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init_stream(in_s, 8192);
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if (tcp_force_recv(socket, in_s->data, size - 8) == 0)
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{
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if (version == 0)
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{
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/* starts processing an scp v0 connection */
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scp_v0_process(socket, in_s, out_s);
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}
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#warning scp v1 is disabled
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/* this is temporarily disabled...
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else if (version == 1)
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{
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/ * starts processing an scp v0 connection * /
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//scp_v1_process();
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}*/
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else
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{
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/* an unknown scp version was requested, so we shut down the */
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/* connection (and log the fact) */
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log_message(LOG_LEVEL_WARNING,"unknown protocol version specified. connection refused.");
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}
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}
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}
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g_tcp_close(socket);
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free_stream(in_s);
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free_stream(out_s);
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}
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/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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xrdp: A Remote Desktop Protocol server.
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Copyright (C) Jay Sorg 2005-2006
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*/
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/**
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*
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* @file scp.h
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* @brief scp (sesman control protocol) common definitions
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* @author Simone Fedele
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*
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*/
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#ifndef SCP_H
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#define SCP_H
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#include "scp_v0.h"
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//#include "scp_v1.h"
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/**
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*
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* @brief Starts a an scp protocol thread.
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* Starts a an scp protocol thread.
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* But does only version control....
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* @param socket the connection socket
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*
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*/
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void DEFAULT_CC
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scp_process_start(int socket);
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#endif
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@ -0,0 +1,109 @@
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/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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xrdp: A Remote Desktop Protocol server.
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Copyright (C) Jay Sorg 2005-2006
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*/
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/**
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*
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* @file scp_v0.c
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* @brief scp version 0 implementation
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* @author Jay Sorg, Simone Fedele
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*
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*/
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#include "sesman.h"
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/******************************************************************************/
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void DEFAULT_CC
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scp_v0_process(int in_sck, struct stream* in_s, struct stream* out_s)
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{
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int code;
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int i;
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int width;
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int height;
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int bpp;
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int display;
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char user[256];
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char pass[256];
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long data;
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struct session_item* s_item;
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in_uint16_be(in_s, code);
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if (code == 0 || code == 10) /* check username - password, */
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{ /* start session */
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in_uint16_be(in_s, i);
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in_uint8a(in_s, user, i);
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user[i] = 0;
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in_uint16_be(in_s, i);
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in_uint8a(in_s, pass, i);
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pass[i] = 0;
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in_uint16_be(in_s, width);
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in_uint16_be(in_s, height);
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in_uint16_be(in_s, bpp);
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data = auth_userpass(user, pass);
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display = 0;
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if (data)
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{
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s_item = session_get_bydata(user, width, height, bpp);
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if (s_item != 0)
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{
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display = s_item->display;
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auth_end(data);
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/* don't set data to null here */
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}
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else
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{
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g_printf("pre auth");
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if (1 == access_login_allowed(user))
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{
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log_message(LOG_LEVEL_INFO,
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"granted TS access to user %s", user);
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if (0 == code)
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{
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log_message(LOG_LEVEL_INFO, "starting Xvnc session...");
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display = session_start(width, height, bpp, user, pass,
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data, SESMAN_SESSION_TYPE_XVNC);
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}
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else
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{
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log_message(LOG_LEVEL_INFO, "starting Xrdp session...");
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display = session_start(width, height, bpp, user, pass,
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data, SESMAN_SESSION_TYPE_XRDP);
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}
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}
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else
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{
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display = 0;
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}
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}
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if (display == 0)
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{
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auth_end(data);
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data = 0;
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}
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}
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init_stream(out_s, 8192);
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out_uint32_be(out_s, 0); /* version */
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out_uint32_be(out_s, 14); /* size */
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out_uint16_be(out_s, 3); /* cmd */
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out_uint16_be(out_s, data != 0); /* data */
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out_uint16_be(out_s, display); /* data */
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s_mark_end(out_s);
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tcp_force_send(in_sck, out_s->data,
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out_s->end - out_s->data);
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}
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}
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@ -0,0 +1,42 @@
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/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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xrdp: A Remote Desktop Protocol server.
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Copyright (C) Jay Sorg 2005-2006
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*/
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/**
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*
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* @file scp_v0.h
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* @brief scp version 0 declarations
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* @author Simone Fedele
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*
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*/
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#ifndef SCP_V0_H
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#define SCP_V0_H
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/**
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*
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* @brief processes the stream using scp version 0
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* @param in_sck connection socket
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* @param in_s input stream
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* @param out_s output stream
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*
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*/
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void DEFAULT_CC
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scp_v0_process(int in_sck, struct stream* in_s, struct stream* out_s);
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#endif
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Loading…
Reference in new issue