496 lines
11 KiB
C
496 lines
11 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Client
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* X11 Peer
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*
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <sys/select.h>
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#ifdef WITH_XDAMAGE
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#include <X11/extensions/Xdamage.h>
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#endif
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#include <freerdp/utils/sleep.h>
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#include <freerdp/utils/memory.h>
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#include <freerdp/utils/thread.h>
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#include <freerdp/codec/color.h>
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extern char* xf_pcap_file;
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extern boolean xf_pcap_dump_realtime;
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#include "xf_encode.h"
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#include "xf_peer.h"
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xfInfo* xf_info_init()
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{
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int i;
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xfInfo* xfi;
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int pf_count;
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int vi_count;
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int damage_event;
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int damage_error;
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XVisualInfo* vi;
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XVisualInfo* vis;
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XVisualInfo template;
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XPixmapFormatValues* pf;
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XPixmapFormatValues* pfs;
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xfi = xnew(xfInfo);
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xfi->display = XOpenDisplay(NULL);
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if (xfi->display == NULL)
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{
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printf("failed to open display: %s\n", XDisplayName(NULL));
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exit(1);
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}
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xfi->number = DefaultScreen(xfi->display);
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xfi->screen = ScreenOfDisplay(xfi->display, xfi->number);
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xfi->depth = DefaultDepthOfScreen(xfi->screen);
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xfi->width = WidthOfScreen(xfi->screen);
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xfi->height = HeightOfScreen(xfi->screen);
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pfs = XListPixmapFormats(xfi->display, &pf_count);
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if (pfs == NULL)
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{
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printf("XListPixmapFormats failed\n");
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exit(1);
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}
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for (i = 0; i < pf_count; i++)
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{
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pf = pfs + i;
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if (pf->depth == xfi->depth)
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{
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xfi->bpp = pf->bits_per_pixel;
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xfi->scanline_pad = pf->scanline_pad;
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break;
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}
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}
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XFree(pfs);
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memset(&template, 0, sizeof(template));
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template.class = TrueColor;
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template.screen = xfi->number;
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vis = XGetVisualInfo(xfi->display, VisualClassMask | VisualScreenMask, &template, &vi_count);
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if (vis == NULL)
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{
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printf("XGetVisualInfo failed\n");
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exit(1);
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}
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for (i = 0; i < vi_count; i++)
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{
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vi = vis + i;
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if (vi->depth == xfi->depth)
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{
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xfi->visual = vi->visual;
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break;
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}
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}
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XFree(vis);
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xfi->clrconv = (HCLRCONV) xnew(HCLRCONV);
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xfi->clrconv->invert = 1;
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xfi->clrconv->alpha = 1;
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XSelectInput(xfi->display, DefaultRootWindow(xfi->display), SubstructureNotifyMask);
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XDamageQueryExtension(xfi->display, &damage_event, &damage_error);
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return xfi;
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}
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void xf_peer_context_new(freerdp_peer* client, xfPeerContext* context)
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{
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context->info = xf_info_init();
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context->rfx_context = rfx_context_new();
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context->rfx_context->mode = RLGR3;
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context->rfx_context->width = context->info->width;
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context->rfx_context->height = context->info->height;
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rfx_context_set_pixel_format(context->rfx_context, RFX_PIXEL_FORMAT_RGB);
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context->s = stream_new(65536);
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}
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void xf_peer_context_free(freerdp_peer* client, xfPeerContext* context)
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{
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if (context)
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{
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stream_free(context->s);
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rfx_context_free(context->rfx_context);
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xfree(context);
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}
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}
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void xf_peer_init(freerdp_peer* client)
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{
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client->context_size = sizeof(xfPeerContext);
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client->ContextNew = (psPeerContextNew) xf_peer_context_new;
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client->ContextFree = (psPeerContextFree) xf_peer_context_free;
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freerdp_peer_context_new(client);
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}
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STREAM* xf_peer_stream_init(xfPeerContext* context)
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{
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stream_clear(context->s);
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stream_set_pos(context->s, 0);
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return context->s;
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}
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void xf_peer_live_rfx(freerdp_peer* client)
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{
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STREAM* s;
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int width;
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int height;
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uint8* data;
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xfInfo* xfi;
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XImage* image;
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RFX_RECT rect;
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uint32 seconds;
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uint32 useconds;
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rdpUpdate* update;
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xfPeerContext* xfp;
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SURFACE_BITS_COMMAND* cmd;
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seconds = 1;
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useconds = 0;
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update = client->update;
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xfp = (xfPeerContext*) client->context;
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xfi = (xfInfo*) xfp->info;
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cmd = &update->surface_bits_command;
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width = xfi->width;
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height = xfi->height;
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data = (uint8*) xmalloc(width * height * 3);
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while (1)
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{
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if (seconds > 0)
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freerdp_sleep(seconds);
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if (useconds > 0)
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freerdp_usleep(useconds);
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s = xf_peer_stream_init(xfp);
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image = xf_snapshot(xfi, 0, 0, width, height);
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freerdp_image_convert((uint8*) image->data, data, width, height, 32, 24, xfi->clrconv);
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rect.x = 0;
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rect.y = 0;
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rect.width = width;
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rect.height = height;
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rfx_compose_message(xfp->rfx_context, s, &rect, 1, data, width, height, width * 3);
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cmd->destLeft = 0;
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cmd->destTop = 0;
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cmd->destRight = width;
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cmd->destBottom = height;
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cmd->bpp = 32;
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cmd->codecID = client->settings->rfx_codec_id;
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cmd->width = width;
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cmd->height = height;
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cmd->bitmapDataLength = stream_get_length(s);
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cmd->bitmapData = stream_get_head(s);
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update->SurfaceBits(update, cmd);
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}
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}
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static boolean xf_peer_sleep_tsdiff(uint32 *old_sec, uint32 *old_usec, uint32 new_sec, uint32 new_usec)
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{
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sint32 sec, usec;
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if (*old_sec == 0 && *old_usec == 0)
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{
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*old_sec = new_sec;
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*old_usec = new_usec;
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return True;
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}
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sec = new_sec - *old_sec;
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usec = new_usec - *old_usec;
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if (sec < 0 || (sec == 0 && usec < 0))
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{
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printf("Invalid time stamp detected.\n");
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return False;
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}
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*old_sec = new_sec;
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*old_usec = new_usec;
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while (usec < 0)
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{
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usec += 1000000;
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sec--;
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}
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if (sec > 0)
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freerdp_sleep(sec);
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if (usec > 0)
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freerdp_usleep(usec);
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return True;
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}
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void xf_peer_dump_rfx(freerdp_peer* client)
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{
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STREAM* s;
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uint32 prev_seconds;
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uint32 prev_useconds;
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rdpUpdate* update;
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rdpPcap* pcap_rfx;
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pcap_record record;
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s = stream_new(512);
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update = client->update;
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client->update->pcap_rfx = pcap_open(xf_pcap_file, False);
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pcap_rfx = client->update->pcap_rfx;
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if (pcap_rfx == NULL)
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return;
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prev_seconds = prev_useconds = 0;
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while (pcap_has_next_record(pcap_rfx))
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{
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pcap_get_next_record_header(pcap_rfx, &record);
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s->data = xrealloc(s->data, record.length);
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record.data = s->data;
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s->size = record.length;
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pcap_get_next_record_content(pcap_rfx, &record);
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s->p = s->data + s->size;
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if (xf_pcap_dump_realtime && xf_peer_sleep_tsdiff(&prev_seconds, &prev_useconds, record.header.ts_sec, record.header.ts_usec) == False)
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break;
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update->SurfaceCommand(update, s);
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}
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}
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boolean xf_peer_post_connect(freerdp_peer* client)
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{
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xfInfo* xfi;
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xfPeerContext* xfp;
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xfp = (xfPeerContext*) client->context;
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xfi = (xfInfo*) xfp->info;
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/**
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* This callback is called when the entire connection sequence is done, i.e. we've received the
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* Font List PDU from the client and sent out the Font Map PDU.
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* The server may start sending graphics output and receiving keyboard/mouse input after this
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* callback returns.
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*/
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printf("Client %s is activated", client->hostname);
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if (client->settings->autologon)
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{
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printf(" and wants to login automatically as %s\\%s",
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client->settings->domain ? client->settings->domain : "",
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client->settings->username);
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/* A real server may perform OS login here if NLA is not executed previously. */
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}
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printf("\n");
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printf("Client requested desktop: %dx%dx%d\n",
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client->settings->width, client->settings->height, client->settings->color_depth);
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/* A real server should tag the peer as activated here and start sending updates in mainloop. */
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client->settings->width = xfi->width;
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client->settings->height = xfi->height;
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client->update->DesktopResize(client->update);
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xfp->activated = False;
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/* Return False here would stop the execution of the peer mainloop. */
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return True;
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}
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boolean xf_peer_activate(freerdp_peer* client)
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{
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xfPeerContext* xfp = (xfPeerContext*) client->context;
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rfx_context_reset(xfp->rfx_context);
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xfp->activated = True;
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if (xf_pcap_file != NULL)
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{
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client->update->dump_rfx = True;
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xf_peer_dump_rfx(client);
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}
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else
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{
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xf_peer_live_rfx(client);
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}
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return True;
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}
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void xf_peer_synchronize_event(rdpInput* input, uint32 flags)
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{
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printf("Client sent a synchronize event (flags:0x%X)\n", flags);
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}
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void xf_peer_keyboard_event(rdpInput* input, uint16 flags, uint16 code)
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{
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freerdp_peer* client = (freerdp_peer*) input->context->peer;
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rdpUpdate* update = client->update;
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xfPeerContext* xfp = (xfPeerContext*) input->context;
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printf("Client sent a keyboard event (flags:0x%X code:0x%X)\n", flags, code);
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if ((flags & 0x4000) && code == 0x1F) /* 's' key */
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{
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if (client->settings->width != 800)
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{
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client->settings->width = 800;
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client->settings->height = 600;
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}
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else
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{
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client->settings->width = 640;
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client->settings->height = 480;
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}
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update->DesktopResize(update);
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xfp->activated = False;
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}
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}
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void xf_peer_unicode_keyboard_event(rdpInput* input, uint16 code)
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{
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printf("Client sent a unicode keyboard event (code:0x%X)\n", code);
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}
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void xf_peer_mouse_event(rdpInput* input, uint16 flags, uint16 x, uint16 y)
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{
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printf("Client sent a mouse event (flags:0x%X pos:%d,%d)\n", flags, x, y);
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}
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void xf_peer_extended_mouse_event(rdpInput* input, uint16 flags, uint16 x, uint16 y)
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{
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printf("Client sent an extended mouse event (flags:0x%X pos:%d,%d)\n", flags, x, y);
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}
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void* xf_peer_main_loop(void* arg)
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{
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int i;
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int fds;
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int max_fds;
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int rcount;
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void* rfds[32];
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fd_set rfds_set;
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freerdp_peer* client = (freerdp_peer*) arg;
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memset(rfds, 0, sizeof(rfds));
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printf("We've got a client %s\n", client->hostname);
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xf_peer_init(client);
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/* Initialize the real server settings here */
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client->settings->cert_file = xstrdup("server.crt");
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client->settings->privatekey_file = xstrdup("server.key");
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client->settings->nla_security = False;
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client->settings->rfx_codec = True;
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client->PostConnect = xf_peer_post_connect;
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client->Activate = xf_peer_activate;
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client->input->SynchronizeEvent = xf_peer_synchronize_event;
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client->input->KeyboardEvent = xf_peer_keyboard_event;
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client->input->UnicodeKeyboardEvent = xf_peer_unicode_keyboard_event;
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client->input->MouseEvent = xf_peer_mouse_event;
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client->input->ExtendedMouseEvent = xf_peer_extended_mouse_event;
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client->Initialize(client);
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while (1)
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{
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rcount = 0;
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if (client->GetFileDescriptor(client, rfds, &rcount) != True)
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{
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printf("Failed to get FreeRDP file descriptor\n");
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break;
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}
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max_fds = 0;
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FD_ZERO(&rfds_set);
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for (i = 0; i < rcount; i++)
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{
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fds = (int)(long)(rfds[i]);
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if (fds > max_fds)
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max_fds = fds;
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FD_SET(fds, &rfds_set);
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}
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if (max_fds == 0)
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break;
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if (select(max_fds + 1, &rfds_set, NULL, NULL, NULL) == -1)
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{
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/* these are not really errors */
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if (!((errno == EAGAIN) ||
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(errno == EWOULDBLOCK) ||
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(errno == EINPROGRESS) ||
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(errno == EINTR))) /* signal occurred */
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{
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printf("select failed\n");
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break;
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}
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}
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if (client->CheckFileDescriptor(client) != True)
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break;
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}
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printf("Client %s disconnected.\n", client->hostname);
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client->Disconnect(client);
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freerdp_peer_context_free(client);
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freerdp_peer_free(client);
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return NULL;
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}
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void xf_peer_accepted(freerdp_listener* instance, freerdp_peer* client)
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{
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pthread_t th;
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pthread_create(&th, 0, xf_peer_main_loop, client);
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pthread_detach(th);
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}
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