mirror of https://github.com/neutrinolabs/xrdp
added files from rdesktop
This commit is contained in:
jsorg71
parent
d490be59e3
commit
fac0e03c03
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/* -*- c-basic-offset: 8 -*-
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rdesktop: A Remote Desktop Protocol client.
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Protocol services - Virtual channels
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Copyright (C) Erik Forsberg <forsberg@cendio.se> 2003
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Copyright (C) Matthew Chapman 2003-2005
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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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*/
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#include "rdesktop.h"
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#define MAX_CHANNELS 6
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#define CHANNEL_CHUNK_LENGTH 1600
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#define CHANNEL_FLAG_FIRST 0x01
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#define CHANNEL_FLAG_LAST 0x02
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#define CHANNEL_FLAG_SHOW_PROTOCOL 0x10
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extern BOOL g_use_rdp5;
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extern BOOL g_encryption;
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VCHANNEL g_channels[MAX_CHANNELS];
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unsigned int g_num_channels;
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/* FIXME: We should use the information in TAG_SRV_CHANNELS to map RDP5
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channels to MCS channels.
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The format of TAG_SRV_CHANNELS seems to be
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global_channel_no (uint16le)
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number_of_other_channels (uint16le)
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..followed by uint16les for the other channels.
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*/
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VCHANNEL *
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channel_register(char *name, uint32 flags, void (*callback) (STREAM))
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{
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VCHANNEL *channel;
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if (!g_use_rdp5)
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return NULL;
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if (g_num_channels >= MAX_CHANNELS)
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{
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error("Channel table full, increase MAX_CHANNELS\n");
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return NULL;
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}
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channel = &g_channels[g_num_channels];
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channel->mcs_id = MCS_GLOBAL_CHANNEL + 1 + g_num_channels;
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strncpy(channel->name, name, 8);
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channel->flags = flags;
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channel->process = callback;
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g_num_channels++;
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return channel;
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}
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STREAM
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channel_init(VCHANNEL * channel, uint32 length)
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{
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STREAM s;
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s = sec_init(g_encryption ? SEC_ENCRYPT : 0, length + 8);
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s_push_layer(s, channel_hdr, 8);
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return s;
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}
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void
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channel_send(STREAM s, VCHANNEL * channel)
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{
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uint32 length, flags;
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uint32 thislength, remaining;
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uint8 *data;
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/* first fragment sent in-place */
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s_pop_layer(s, channel_hdr);
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length = s->end - s->p - 8;
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DEBUG_CHANNEL(("channel_send, length = %d\n", length));
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thislength = MIN(length, CHANNEL_CHUNK_LENGTH);
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/* Note: In the original clipboard implementation, this number was
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1592, not 1600. However, I don't remember the reason and 1600 seems
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to work so.. This applies only to *this* length, not the length of
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continuation or ending packets. */
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remaining = length - thislength;
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flags = (remaining == 0) ? CHANNEL_FLAG_FIRST | CHANNEL_FLAG_LAST : CHANNEL_FLAG_FIRST;
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if (channel->flags & CHANNEL_OPTION_SHOW_PROTOCOL)
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flags |= CHANNEL_FLAG_SHOW_PROTOCOL;
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out_uint32_le(s, length);
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out_uint32_le(s, flags);
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data = s->end = s->p + thislength;
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DEBUG_CHANNEL(("Sending %d bytes with FLAG_FIRST\n", thislength));
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sec_send_to_channel(s, g_encryption ? SEC_ENCRYPT : 0, channel->mcs_id);
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/* subsequent segments copied (otherwise would have to generate headers backwards) */
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while (remaining > 0)
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{
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thislength = MIN(remaining, CHANNEL_CHUNK_LENGTH);
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remaining -= thislength;
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flags = (remaining == 0) ? CHANNEL_FLAG_LAST : 0;
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if (channel->flags & CHANNEL_OPTION_SHOW_PROTOCOL)
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flags |= CHANNEL_FLAG_SHOW_PROTOCOL;
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DEBUG_CHANNEL(("Sending %d bytes with flags %d\n", thislength, flags));
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s = sec_init(g_encryption ? SEC_ENCRYPT : 0, thislength + 8);
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out_uint32_le(s, length);
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out_uint32_le(s, flags);
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out_uint8p(s, data, thislength);
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s_mark_end(s);
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sec_send_to_channel(s, g_encryption ? SEC_ENCRYPT : 0, channel->mcs_id);
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data += thislength;
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}
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}
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void
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channel_process(STREAM s, uint16 mcs_channel)
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{
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uint32 length, flags;
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uint32 thislength;
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VCHANNEL *channel = NULL;
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unsigned int i;
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STREAM in;
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for (i = 0; i < g_num_channels; i++)
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{
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channel = &g_channels[i];
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if (channel->mcs_id == mcs_channel)
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break;
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}
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if (i >= g_num_channels)
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return;
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in_uint32_le(s, length);
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in_uint32_le(s, flags);
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if ((flags & CHANNEL_FLAG_FIRST) && (flags & CHANNEL_FLAG_LAST))
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{
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/* single fragment - pass straight up */
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channel->process(s);
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}
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else
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{
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/* add fragment to defragmentation buffer */
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in = &channel->in;
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if (flags & CHANNEL_FLAG_FIRST)
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{
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if (length > in->size)
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{
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in->data = (uint8 *) xrealloc(in->data, length);
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in->size = length;
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}
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in->p = in->data;
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}
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thislength = MIN(s->end - s->p, in->data + in->size - in->p);
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memcpy(in->p, s->p, thislength);
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in->p += thislength;
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if (flags & CHANNEL_FLAG_LAST)
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{
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in->end = in->p;
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in->p = in->data;
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channel->process(in);
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}
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}
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}
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@ -0,0 +1,119 @@
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/*
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rdesktop: A Remote Desktop Protocol client.
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Master include file
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Copyright (C) Matthew Chapman 1999-2005
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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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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <dirent.h>
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#include <sys/time.h>
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#else
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#include <sys/types.h>
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#include <unistd.h>
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#endif
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#include <limits.h> /* PATH_MAX */
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#define VERSION "1.4.1"
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#ifdef WITH_DEBUG
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#define DEBUG(args) printf args;
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#else
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#define DEBUG(args)
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#endif
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#ifdef WITH_DEBUG_KBD
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#define DEBUG_KBD(args) printf args;
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#else
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#define DEBUG_KBD(args)
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#endif
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#ifdef WITH_DEBUG_RDP5
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#define DEBUG_RDP5(args) printf args;
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#else
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#define DEBUG_RDP5(args)
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#endif
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#ifdef WITH_DEBUG_CLIPBOARD
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#define DEBUG_CLIPBOARD(args) printf args;
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#else
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#define DEBUG_CLIPBOARD(args)
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#endif
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#ifdef WITH_DEBUG_CHANNEL
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#define DEBUG_CHANNEL(args) printf args;
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#else
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#define DEBUG_CHANNEL(args)
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#endif
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#define STRNCPY(dst,src,n) { strncpy(dst,src,n-1); dst[n-1] = 0; }
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#ifndef MIN
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#define MIN(x,y) (((x) < (y)) ? (x) : (y))
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#endif
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#ifndef MAX
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#define MAX(x,y) (((x) > (y)) ? (x) : (y))
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#endif
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/* timeval macros */
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#ifndef timerisset
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#define timerisset(tvp)\
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((tvp)->tv_sec || (tvp)->tv_usec)
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#endif
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#ifndef timercmp
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#define timercmp(tvp, uvp, cmp)\
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((tvp)->tv_sec cmp (uvp)->tv_sec ||\
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(tvp)->tv_sec == (uvp)->tv_sec &&\
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(tvp)->tv_usec cmp (uvp)->tv_usec)
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#endif
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#ifndef timerclear
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#define timerclear(tvp)\
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((tvp)->tv_sec = (tvp)->tv_usec = 0)
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#endif
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/* If configure does not define the endianess, try
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to find it out */
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#if !defined(L_ENDIAN) && !defined(B_ENDIAN)
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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#define L_ENDIAN
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#elif __BYTE_ORDER == __BIG_ENDIAN
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#define B_ENDIAN
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#else
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#error Unknown endianness. Edit rdesktop.h.
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#endif
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#endif /* B_ENDIAN, L_ENDIAN from configure */
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/* No need for alignment on x86 and amd64 */
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#if !defined(NEED_ALIGN)
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#if !(defined(__x86__) || defined(__x86_64__) || \
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defined(__AMD64__) || defined(_M_IX86) || \
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defined(__i386__))
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#define NEED_ALIGN
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#endif
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#endif
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#include "parse.h"
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#include "constants.h"
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#include "types.h"
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#ifndef MAKE_PROTO
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#include "proto.h"
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#endif
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,121 @@
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/* -*- c-basic-offset: 8 -*-
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rdesktop: A Remote Desktop Protocol client.
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Protocol services - RDP5 short form PDU processing
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Copyright (C) Matthew Chapman 1999-2005
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Copyright (C) Erik Forsberg 2003
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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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*/
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#include "rdesktop.h"
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extern uint8 *g_next_packet;
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extern RDPCOMP g_mppc_dict;
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void
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rdp5_process(STREAM s)
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{
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uint16 length, count, x, y;
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uint8 type, ctype;
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uint8 *next;
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uint32 roff, rlen;
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struct stream *ns = &(g_mppc_dict.ns);
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struct stream *ts;
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#if 0
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printf("RDP5 data:\n");
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hexdump(s->p, s->end - s->p);
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#endif
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ui_begin_update();
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while (s->p < s->end)
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{
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in_uint8(s, type);
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if (type & RDP5_COMPRESSED)
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{
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in_uint8(s, ctype);
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in_uint16_le(s, length);
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type ^= RDP5_COMPRESSED;
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}
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else
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{
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ctype = 0;
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in_uint16_le(s, length);
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}
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g_next_packet = next = s->p + length;
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if (ctype & RDP_MPPC_COMPRESSED)
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{
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if (mppc_expand(s->p, length, ctype, &roff, &rlen) == -1)
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error("error while decompressing packet\n");
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/* allocate memory and copy the uncompressed data into the temporary stream */
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ns->data = (uint8 *) xrealloc(ns->data, rlen);
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memcpy((ns->data), (unsigned char *) (g_mppc_dict.hist + roff), rlen);
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ns->size = rlen;
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ns->end = (ns->data + ns->size);
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ns->p = ns->data;
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ns->rdp_hdr = ns->p;
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ts = ns;
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}
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else
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ts = s;
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switch (type)
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{
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case 0: /* update orders */
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in_uint16_le(ts, count);
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process_orders(ts, count);
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break;
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case 1: /* update bitmap */
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in_uint8s(ts, 2); /* part length */
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process_bitmap_updates(ts);
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break;
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case 2: /* update palette */
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in_uint8s(ts, 2); /* uint16 = 2 */
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process_palette(ts);
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break;
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case 3: /* update synchronize */
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break;
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case 5: /* null pointer */
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ui_set_null_cursor();
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break;
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case 6: /* default pointer */
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break;
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case 8: /* pointer position */
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in_uint16_le(ts, x);
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in_uint16_le(ts, y);
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if (s_check(ts))
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ui_move_pointer(x, y);
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break;
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case 9: /* color pointer */
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process_colour_pointer_pdu(ts);
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break;
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case 10: /* cached pointer */
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process_cached_pointer_pdu(ts);
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break;
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default:
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unimpl("RDP5 opcode %d\n", type);
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}
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s->p = next;
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}
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ui_end_update();
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}
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