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xrdp/libxrdp/xrdp_caps.c
matt335672 27ad405cd8 Add a client_resize_mode field 
This stores what kind of resizing (if any) can be achieved with
a Deactivation-Reactivation sequence.
2024-02-15 16:48:13 +00:00

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/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2014
* Copyright (C) Idan Freiberg 2004-2014
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* RDP Capability Sets
*/
#if defined(HAVE_CONFIG_H)
#include <config_ac.h>
#endif
#include <limits.h>
#include "guid.h"
#include "libxrdp.h"
#include "ms-rdpbcgr.h"
#include "ms-rdperp.h"
/**
* The largest supported size for a fastpath update
* (TS_MULTIFRAGMENTUPDATE_CAPABILITYSET) we advertise to the client. This
* size is big enough for the tiles required for two 3840x2160 monitors
* without using multiple update PDUS.
*
* Consult calculate_multifragmentupdate_len() below before changing this
* value.
*/
#define MAX_MULTIFRAGMENTUPDATE_SIZE (2U * (3840 * 2160) * 16384 + 16384)
/*****************************************************************************/
static int
xrdp_caps_send_monitorlayout(struct xrdp_rdp *self)
{
struct stream *s;
uint32_t i;
struct display_size_description *description;
int rv = 0;
make_stream(s);
init_stream(s, 8192);
if (xrdp_rdp_init_data(self, s) != 0)
{
free_stream(s);
return 1;
}
description = &self->client_info.display_sizes;
out_uint32_le(s, description->monitorCount); /* monitorCount (4 bytes) */
/* TODO: validate for allowed monitors in terminal server (maybe by config?) */
for (i = 0; i < description->monitorCount; i++)
{
out_uint32_le(s, description->minfo[i].left);
out_uint32_le(s, description->minfo[i].top);
out_uint32_le(s, description->minfo[i].right);
out_uint32_le(s, description->minfo[i].bottom);
out_uint32_le(s, description->minfo[i].is_primary);
}
s_mark_end(s);
// [MS-RDPBCGR]
// - 2.2.12.1 - ...the pduSource field MUST be set to zero.
// - 3.3.5.12.1 - The contents of this PDU SHOULD NOT be compressed
rv = xrdp_rdp_send_data_from_channel(self, s,
PDUTYPE2_MONITOR_LAYOUT_PDU, 0, 0);
free_stream(s);
return rv;
}
/*****************************************************************************/
static int
xrdp_caps_process_general(struct xrdp_rdp *self, struct stream *s,
int len)
{
int extraFlags;
int client_does_fastpath_output;
if (len < 10 + 2)
{
LOG(LOG_LEVEL_ERROR, "Not enough bytes in the stream: "
"len 12, remaining %d", len);
return 1;
}
in_uint16_le(s, self->client_info.client_os_major); /* osMajorType (2 bytes) */
in_uint16_le(s, self->client_info.client_os_minor); /* osMinorType (2 bytes) */
in_uint8s(s, 6);
in_uint16_le(s, extraFlags); /* extraFlags (2 bytes) */
self->client_info.op1 = extraFlags & NO_BITMAP_COMPRESSION_HDR;
/* use_compact_packets is pretty much 'use rdp5' */
self->client_info.use_compact_packets = (extraFlags != 0);
/* op2 is a boolean to use compact bitmap headers in bitmap cache */
/* set it to same as 'use rdp5' boolean */
self->client_info.op2 = self->client_info.use_compact_packets;
/* FASTPATH_OUTPUT_SUPPORTED 0x0001 */
client_does_fastpath_output = extraFlags & FASTPATH_OUTPUT_SUPPORTED;
if ((self->client_info.use_fast_path & 1) && !client_does_fastpath_output)
{
/* server supports fast path output and client does not, turn it off */
self->client_info.use_fast_path &= ~1;
}
return 0;
}
/*****************************************************************************/
static int
xrdp_caps_process_bitmap(struct xrdp_rdp *self, struct stream *s,
int len)
{
/* [MS-RDPBCGR] 2.2.7.1.2 */
int desktopResizeFlag;
if (len < 14 + 2)
{
LOG(LOG_LEVEL_ERROR, "Not enough bytes in the stream: "
"len 16, remaining %d", len);
return 1;
}
in_uint8s(s, 14);
in_uint16_le(s, desktopResizeFlag);
/* Work out what kind of client resizing we can do from the server */
int early_cap_flags = self->client_info.mcs_early_capability_flags;
if (desktopResizeFlag == 0)
{
self->client_info.client_resize_mode = CRMODE_NONE;
LOG(LOG_LEVEL_INFO, "Client cannot be resized by xrdp");
}
else if ((early_cap_flags & RNS_UD_CS_SUPPORT_MONITOR_LAYOUT_PDU) == 0)
{
self->client_info.client_resize_mode = CRMODE_SINGLE_SCREEN;
LOG(LOG_LEVEL_INFO, "Client supports single-screen resizes by xrdp");
}
else
{
self->client_info.client_resize_mode = CRMODE_MULTI_SCREEN;
LOG(LOG_LEVEL_INFO, "Client supports multi-screen resizes by xrdp");
}
return 0;
}
/*****************************************************************************/
/*
* Process [MS-RDPBCGR] TS_ORDER_CAPABILITYSET (2.2.7.1.3) message.
*/
static int
xrdp_caps_process_order(struct xrdp_rdp *self, struct stream *s,
int len)
{
int i;
char order_caps[32];
int ex_flags;
int cap_flags;
if (len < 20 + 2 + 2 + 2 + 2 + 2 + 2 + 32 + 2 + 2 + 4 + 4 + 4 + 4)
{
LOG(LOG_LEVEL_ERROR, "Not enough bytes in the stream: "
"len 84, remaining %d", len);
return 1;
}
in_uint8s(s, 20); /* Terminal desc, pad */
in_uint8s(s, 2); /* Cache X granularity */
in_uint8s(s, 2); /* Cache Y granularity */
in_uint8s(s, 2); /* Pad */
in_uint8s(s, 2); /* Max order level */
in_uint8s(s, 2); /* Number of fonts */
in_uint16_le(s, cap_flags); /* Capability flags */
in_uint8a(s, order_caps, 32); /* Orders supported */
g_memcpy(self->client_info.orders, order_caps, 32);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: terminalDescriptor (ignored as per protocol spec)");
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: desktopSaveXGranularity (ignored as per protocol spec)");
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: desktopSaveYGranularity (ignored as per protocol spec)");
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: maximumOrderLevel (ignored as per protocol spec)");
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: numberFonts (ignored as per protocol spec)");
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderFlags 0x%4.4x", cap_flags);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 0: DstBlt %d", order_caps[0]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 1: PatBlt %d", order_caps[1]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 2: ScrBlt %d", order_caps[2]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 3,13: MemBlt %d %d", order_caps[3], order_caps[13]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 4,14: Mem3Blt %d %d", order_caps[4], order_caps[14]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 5-6: unused index");
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 7: DrawNineGrid %d", order_caps[7]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 8: LineTo %d", order_caps[8]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 9: MultiDrawNineGrid %d", order_caps[9]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 10: unused index");
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 11: SaveBitmap %d", order_caps[11]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 12-14: unused index");
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 15: MultiDstBlt %d", order_caps[15]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 16: MultiPatBlt %d", order_caps[16]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 17: MultiScrBlt %d", order_caps[17]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 18: MultiOpaqueRect %d", order_caps[18]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 19: FastIndex %d", order_caps[19]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 20: PolygonSC %d", order_caps[20]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 21: PolygonCB %d", order_caps[21]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 22: Polyline %d", order_caps[22]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 23: unused index");
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 24: FastGlyph %d", order_caps[24]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 25: EllipseSC %d", order_caps[25]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 26: EllipseCB %d", order_caps[26]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 27: GlyphIndex %d", order_caps[27]);
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupport index 28-31: unused index");
LOG_DEVEL_HEXDUMP(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: order_caps", order_caps, 32);
in_uint8s(s, 2); /* Text capability flags */
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: textFlags (ignored as per protocol spec)");
/* read extended order support flags */
in_uint16_le(s, ex_flags); /* Ex flags */
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: orderSupportExFlags 0x%4.4x", ex_flags);
if (cap_flags & 0x80) /* ORDER_FLAGS_EXTRA_SUPPORT */
{
self->client_info.order_flags_ex = ex_flags;
if (ex_flags & XR_ORDERFLAGS_EX_CACHE_BITMAP_REV3_SUPPORT)
{
LOG_DEVEL(LOG_LEVEL_INFO, "Client Capability: bitmap cache v3 supported");
self->client_info.bitmap_cache_version |= 4;
}
}
in_uint8s(s, 4); /* Pad */
in_uint32_le(s, i); /* desktop cache size, usually 0x38400 */
self->client_info.desktop_cache = i;
LOG_DEVEL(LOG_LEVEL_TRACE, "TS_ORDER_CAPABILITYSET: desktopSaveSize %d", i);
in_uint8s(s, 4); /* Pad */
in_uint8s(s, 4); /* Pad */
/* check if libpainter should be used for drawing, instead of orders */
if (!(order_caps[TS_NEG_DSTBLT_INDEX] && order_caps[TS_NEG_PATBLT_INDEX] &&
order_caps[TS_NEG_SCRBLT_INDEX] && order_caps[TS_NEG_MEMBLT_INDEX]))
{
LOG_DEVEL(LOG_LEVEL_INFO, "Client Capability: not enough orders supported by client, using painter.");
self->client_info.no_orders_supported = 1;
}
return 0;
}
/*****************************************************************************/
/* get the bitmap cache size */
static int
xrdp_caps_process_bmpcache(struct xrdp_rdp *self, struct stream *s,
int len)
{
int i;
if (len < 24 + 2 + 2 + 2 + 2 + 2 + 2)
{
LOG(LOG_LEVEL_ERROR, "Not enough bytes in the stream: "
"len 36, remaining %d", len);
return 1;
}
self->client_info.bitmap_cache_version |= 1;
in_uint8s(s, 24);
/* cache 1 */
in_uint16_le(s, i);
i = MIN(i, XRDP_MAX_BITMAP_CACHE_IDX);
i = MAX(i, 0);
self->client_info.cache1_entries = i;
in_uint16_le(s, self->client_info.cache1_size);
/* cache 2 */
in_uint16_le(s, i);
i = MIN(i, XRDP_MAX_BITMAP_CACHE_IDX);
i = MAX(i, 0);
self->client_info.cache2_entries = i;
in_uint16_le(s, self->client_info.cache2_size);
/* cache 3 */
in_uint16_le(s, i);
i = MIN(i, XRDP_MAX_BITMAP_CACHE_IDX);
i = MAX(i, 0);
self->client_info.cache3_entries = i;
in_uint16_le(s, self->client_info.cache3_size);
LOG_DEVEL(LOG_LEVEL_TRACE, "cache1 entries %d size %d", self->client_info.cache1_entries,
self->client_info.cache1_size);
LOG_DEVEL(LOG_LEVEL_TRACE, "cache2 entries %d size %d", self->client_info.cache2_entries,
self->client_info.cache2_size);
LOG_DEVEL(LOG_LEVEL_TRACE, "cache3 entries %d size %d", self->client_info.cache3_entries,
self->client_info.cache3_size);
return 0;
}
/*****************************************************************************/
/* get the bitmap cache size */
static int
xrdp_caps_process_bmpcache2(struct xrdp_rdp *self, struct stream *s,
int len)
{
int Bpp = 0;
int i = 0;
if (len < 2 + 2 + 4 + 4 + 4)
{
LOG(LOG_LEVEL_ERROR, "Not enough bytes in the stream: "
"len 16, remaining %d", len);
return 1;
}
self->client_info.bitmap_cache_version |= 2;
Bpp = (self->client_info.bpp + 7) / 8;
in_uint16_le(s, i); /* cache flags */
self->client_info.bitmap_cache_persist_enable = i;
in_uint8s(s, 2); /* number of caches in set, 3 */
in_uint32_le(s, i);
i = MIN(i, XRDP_MAX_BITMAP_CACHE_IDX);
i = MAX(i, 0);
self->client_info.cache1_entries = i;
self->client_info.cache1_size = 256 * Bpp;
in_uint32_le(s, i);
i = MIN(i, XRDP_MAX_BITMAP_CACHE_IDX);
i = MAX(i, 0);
self->client_info.cache2_entries = i;
self->client_info.cache2_size = 1024 * Bpp;
in_uint32_le(s, i);
i = i & 0x7fffffff;
i = MIN(i, XRDP_MAX_BITMAP_CACHE_IDX);
i = MAX(i, 0);
self->client_info.cache3_entries = i;
self->client_info.cache3_size = 4096 * Bpp;
LOG_DEVEL(LOG_LEVEL_TRACE, "cache1 entries %d size %d", self->client_info.cache1_entries,
self->client_info.cache1_size);
LOG_DEVEL(LOG_LEVEL_TRACE, "cache2 entries %d size %d", self->client_info.cache2_entries,
self->client_info.cache2_size);
LOG_DEVEL(LOG_LEVEL_TRACE, "cache3 entries %d size %d", self->client_info.cache3_entries,
self->client_info.cache3_size);
return 0;
}
/*****************************************************************************/
static int
xrdp_caps_process_cache_v3_codec_id(struct xrdp_rdp *self, struct stream *s,
int len)
{
int codec_id;
if (len < 1)
{
LOG(LOG_LEVEL_ERROR, "Not enough bytes in the stream: "
"len 1, remaining %d", len);
return 1;
}
in_uint8(s, codec_id);
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_process_cache_v3_codec_id: cache_v3_codec_id %d",
codec_id);
self->client_info.v3_codec_id = codec_id;
return 0;
}
/*****************************************************************************/
/* get the number of client cursor cache */
static int
xrdp_caps_process_pointer(struct xrdp_rdp *self, struct stream *s,
int len)
{
int i;
int colorPointerFlag;
int no_new_cursor;
if (len < 2 + 2 + 2)
{
LOG(LOG_LEVEL_ERROR, "xrdp_caps_process_pointer: error");
return 1;
}
no_new_cursor = self->client_info.pointer_flags & 2;
in_uint16_le(s, colorPointerFlag);
self->client_info.pointer_flags = colorPointerFlag;
in_uint16_le(s, i);
i = MIN(i, 32);
self->client_info.pointer_cache_entries = i;
if (colorPointerFlag & 1)
{
LOG(LOG_LEVEL_INFO, "xrdp_caps_process_pointer: client supports "
"new(color) cursor");
in_uint16_le(s, i);
i = MIN(i, 32);
self->client_info.pointer_cache_entries = i;
}
else
{
LOG(LOG_LEVEL_INFO, "xrdp_caps_process_pointer: client does not support "
"new(color) cursor");
}
if (no_new_cursor)
{
LOG(LOG_LEVEL_INFO, "xrdp_caps_process_pointer: new(color) cursor is "
"disabled by config");
self->client_info.pointer_flags = 0;
}
return 0;
}
/*****************************************************************************/
static int
xrdp_caps_process_input(struct xrdp_rdp *self, struct stream *s,
int len)
{
int inputFlags;
int client_does_fastpath_input;
in_uint16_le(s, inputFlags);
client_does_fastpath_input = (inputFlags & INPUT_FLAG_FASTPATH_INPUT) ||
(inputFlags & INPUT_FLAG_FASTPATH_INPUT2);
if ((self->client_info.use_fast_path & 2) && !client_does_fastpath_input)
{
self->client_info.use_fast_path &= ~2;
}
return 0;
}
/*****************************************************************************/
/* get the type of client brush cache */
int
xrdp_caps_process_brushcache(struct xrdp_rdp *self, struct stream *s,
int len)
{
int code;
if (len < 4)
{
LOG(LOG_LEVEL_ERROR, "xrdp_caps_process_brushcache: error");
return 1;
}
in_uint32_le(s, code);
self->client_info.brush_cache_code = code;
return 0;
}
/*****************************************************************************/
static int
xrdp_caps_process_glyphcache(struct xrdp_rdp *self, struct stream *s,
int len)
{
int glyph_support_level;
if (len < 40 + 4 + 2 + 2) /* MS-RDPBCGR 2.2.7.1.8 */
{
LOG(LOG_LEVEL_ERROR, "xrdp_caps_process_glyphcache: error");
return 1;
}
in_uint8s(s, 40); /* glyph cache */
in_uint8s(s, 4); /* frag cache */
in_uint16_le(s, glyph_support_level);
in_uint8s(s, 2); /* pad */
if (glyph_support_level == GLYPH_SUPPORT_ENCODE)
{
self->client_info.use_cache_glyph_v2 = 1;
}
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_process_glyphcache: support level %d ",
glyph_support_level);
return 0;
}
/*****************************************************************************/
int
xrdp_caps_process_offscreen_bmpcache(struct xrdp_rdp *self, struct stream *s,
int len)
{
int i32;
if (len < 4 + 2 + 2)
{
LOG(LOG_LEVEL_ERROR, "xrdp_caps_process_offscreen_bmpcache: error");
return 1;
}
in_uint32_le(s, i32);
self->client_info.offscreen_support_level = i32;
in_uint16_le(s, i32);
self->client_info.offscreen_cache_size = i32 * 1024;
in_uint16_le(s, i32);
self->client_info.offscreen_cache_entries = i32;
LOG(LOG_LEVEL_INFO, "xrdp_process_offscreen_bmpcache: support level %d "
"cache size %d MB cache entries %d",
self->client_info.offscreen_support_level,
self->client_info.offscreen_cache_size,
self->client_info.offscreen_cache_entries);
return 0;
}
/*****************************************************************************/
int
xrdp_caps_process_rail(struct xrdp_rdp *self, struct stream *s, int len)
{
int i32;
if (len < 4)
{
LOG(LOG_LEVEL_ERROR, "Not enough bytes in the stream: "
"len 4, remaining %d", len);
return 1;
}
in_uint32_le(s, i32);
self->client_info.rail_support_level = i32;
LOG(LOG_LEVEL_TRACE, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - CAPSTYPE_RAIL "
"RailSupportLevel 0x%8.8x (%s%s%s%s%s%s%s%s)",
self->client_info.rail_support_level,
(self->client_info.rail_support_level & 0x01) ? "TS_RAIL_LEVEL_SUPPORTED " : "",
(self->client_info.rail_support_level & 0x02) ? "TS_RAIL_LEVEL_DOCKED_LANGBAR_SUPPORTED " : "",
(self->client_info.rail_support_level & 0x04) ? "TS_RAIL_LEVEL_SHELL_INTEGRATION_SUPPORTED " : "",
(self->client_info.rail_support_level & 0x08) ? "TS_RAIL_LEVEL_LANGUAGE_IME_SYNC_SUPPORTED " : "",
(self->client_info.rail_support_level & 0x10) ? "TS_RAIL_LEVEL_SERVER_TO_CLIENT_IME_SYNC_SUPPORTED " : "",
(self->client_info.rail_support_level & 0x20) ? "TS_RAIL_LEVEL_HIDE_MINIMIZED_APPS_SUPPORTED " : "",
(self->client_info.rail_support_level & 0x40) ? "TS_RAIL_LEVEL_WINDOW_CLOAKING_SUPPORTED " : "",
(self->client_info.rail_support_level & 0x80) ? "TS_RAIL_LEVEL_HANDSHAKE_EX_SUPPORTED " : ""
);
return 0;
}
/*****************************************************************************/
static int
xrdp_caps_process_window(struct xrdp_rdp *self, struct stream *s, int len)
{
int i32;
if (len < 4 + 1 + 2)
{
LOG(LOG_LEVEL_ERROR, "xrdp_caps_process_window: error");
return 1;
}
in_uint32_le(s, i32);
self->client_info.wnd_support_level = i32;
in_uint8(s, i32);
self->client_info.wnd_num_icon_caches = i32;
in_uint16_le(s, i32);
self->client_info.wnd_num_icon_cache_entries = i32;
LOG(LOG_LEVEL_INFO, "xrdp_process_capset_window wnd_support_level %d, "
"wnd_num_icon_caches %d, wnd_num_icon_cache_entries %d",
self->client_info.wnd_support_level,
self->client_info.wnd_num_icon_caches,
self->client_info.wnd_num_icon_cache_entries);
return 0;
}
/*****************************************************************************/
static int
xrdp_caps_process_codecs(struct xrdp_rdp *self, struct stream *s, int len)
{
int codec_id;
int codec_count;
int index;
int codec_properties_length;
int i1;
char *codec_guid;
char *next_guid;
struct guid guid;
char codec_guid_str[GUID_STR_SIZE];
guid_clear(&guid);
if (len < 1)
{
LOG(LOG_LEVEL_ERROR, "xrdp_caps_process_codecs: error");
return 1;
}
in_uint8(s, codec_count);
len--;
for (index = 0; index < codec_count; index++)
{
codec_guid = s->p;
g_memcpy(guid.g, s->p, GUID_SIZE);
guid_to_str(&guid, codec_guid_str);
if (len < 16 + 1 + 2)
{
LOG(LOG_LEVEL_ERROR, "xrdp_caps_process_codecs: error");
return 1;
}
in_uint8s(s, 16);
in_uint8(s, codec_id);
in_uint16_le(s, codec_properties_length);
len -= 16 + 1 + 2;
if (len < codec_properties_length)
{
LOG(LOG_LEVEL_ERROR, "xrdp_caps_process_codecs: error");
return 1;
}
len -= codec_properties_length;
next_guid = s->p + codec_properties_length;
if (g_memcmp(codec_guid, XR_CODEC_GUID_NSCODEC, 16) == 0)
{
LOG(LOG_LEVEL_INFO, "xrdp_caps_process_codecs: NSCodec(%s), codec id [%d], properties len [%d]",
codec_guid_str, codec_id, codec_properties_length);
self->client_info.ns_codec_id = codec_id;
i1 = MIN(64, codec_properties_length);
g_memcpy(self->client_info.ns_prop, s->p, i1);
self->client_info.ns_prop_len = i1;
}
else if (g_memcmp(codec_guid, XR_CODEC_GUID_REMOTEFX, 16) == 0)
{
LOG(LOG_LEVEL_INFO, "xrdp_caps_process_codecs: RemoteFX(%s), codec id [%d], properties len [%d]",
codec_guid_str, codec_id, codec_properties_length);
self->client_info.rfx_codec_id = codec_id;
i1 = MIN(64, codec_properties_length);
g_memcpy(self->client_info.rfx_prop, s->p, i1);
self->client_info.rfx_prop_len = i1;
}
else if (g_memcmp(codec_guid, XR_CODEC_GUID_JPEG, 16) == 0)
{
LOG(LOG_LEVEL_INFO, "xrdp_caps_process_codecs: JPEG(%s), codec id [%d], properties len [%d]",
codec_guid_str, codec_id, codec_properties_length);
self->client_info.jpeg_codec_id = codec_id;
i1 = MIN(64, codec_properties_length);
g_memcpy(self->client_info.jpeg_prop, s->p, i1);
self->client_info.jpeg_prop_len = i1;
/* make sure that requested quality is between 0 to 100 */
if (self->client_info.jpeg_prop[0] < 0 || self->client_info.jpeg_prop[0] > 100)
{
LOG(LOG_LEVEL_WARNING, " Warning: the requested jpeg quality (%d) is invalid, "
"falling back to default", self->client_info.jpeg_prop[0]);
self->client_info.jpeg_prop[0] = 75; /* use default */
}
LOG(LOG_LEVEL_INFO, " jpeg quality set to %d", self->client_info.jpeg_prop[0]);
}
else if (g_memcmp(codec_guid, XR_CODEC_GUID_H264, 16) == 0)
{
LOG(LOG_LEVEL_INFO, "xrdp_caps_process_codecs: H264(%s), codec id [%d], properties len [%d]",
codec_guid_str, codec_id, codec_properties_length);
self->client_info.h264_codec_id = codec_id;
i1 = MIN(64, codec_properties_length);
g_memcpy(self->client_info.h264_prop, s->p, i1);
self->client_info.h264_prop_len = i1;
}
/* other known codec but not supported yet */
else if (g_memcmp(codec_guid, XR_CODEC_GUID_IMAGE_REMOTEFX, 16) == 0)
{
LOG(LOG_LEVEL_INFO, "xrdp_caps_process_codecs: Image RemoteFX(%s), codec id [%d], properties len [%d]",
codec_guid_str, codec_id, codec_properties_length);
}
else
{
LOG(LOG_LEVEL_WARNING, "xrdp_caps_process_codecs: unknown(%s), codec id [%d], properties len [%d]",
codec_guid_str, codec_id, codec_properties_length);
}
s->p = next_guid;
}
return 0;
}
/*****************************************************************************/
static int
xrdp_caps_process_multifragmentupdate(struct xrdp_rdp *self, struct stream *s,
int len)
{
int MaxRequestSize;
in_uint32_le(s, MaxRequestSize);
if (self->client_info.use_fast_path & 1)
{
self->client_info.max_fastpath_frag_bytes = MaxRequestSize;
}
return 0;
}
/*****************************************************************************/
static int
xrdp_caps_process_largepointer(struct xrdp_rdp *self, struct stream *s,
int len)
{
int largePointerSupportFlags;
in_uint16_le(s, largePointerSupportFlags);
self->client_info.large_pointer_support_flags = largePointerSupportFlags;
return 0;
}
/*****************************************************************************/
static int
xrdp_caps_process_frame_ack(struct xrdp_rdp *self, struct stream *s, int len)
{
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_process_frame_ack:");
self->client_info.use_frame_acks = 1;
in_uint32_le(s, self->client_info.max_unacknowledged_frame_count);
if (self->client_info.max_unacknowledged_frame_count < 0)
{
LOG(LOG_LEVEL_WARNING, " invalid max_unacknowledged_frame_count value (%d), setting to 0",
self->client_info.max_unacknowledged_frame_count);
self->client_info.max_unacknowledged_frame_count = 0;
}
LOG_DEVEL(LOG_LEVEL_TRACE, " max_unacknowledged_frame_count %d", self->client_info.max_unacknowledged_frame_count);
return 0;
}
/*****************************************************************************/
static int
xrdp_caps_process_surface_cmds(struct xrdp_rdp *self, struct stream *s, int len)
{
int cmdFlags;
#ifndef USE_DEVEL_LOGGING
/* TODO: remove UNUSED_VAR once the `cmdFlags` variable is used for more than
logging in debug mode */
UNUSED_VAR(cmdFlags);
#endif
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_process_surface_cmds:");
in_uint32_le(s, cmdFlags);
in_uint8s(s, 4); /* reserved */
LOG_DEVEL(LOG_LEVEL_TRACE, " cmdFlags 0x%08x", cmdFlags);
return 0;
}
/*****************************************************************************/
/*
* Process a [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU (2.2.1.13.2.1) message.
*/
int
xrdp_caps_process_confirm_active(struct xrdp_rdp *self, struct stream *s)
{
int cap_len;
int source_len;
int num_caps;
int index;
int type;
int len;
char *p;
if (!s_check_rem_and_log(s, 10,
"Parsing [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU"
" - header"))
{
return 1;
}
in_uint8s(s, 4); /* rdp_shareid */
in_uint8s(s, 2); /* userid */
in_uint16_le(s, source_len); /* sizeof RDP_SOURCE */
in_uint16_le(s, cap_len);
if (!s_check_rem_and_log(s, source_len + 2 + 2,
"Parsing [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU"
" - header2"))
{
return 1;
}
in_uint8s(s, source_len);
in_uint16_le(s, num_caps);
in_uint8s(s, 2); /* pad */
LOG_DEVEL(LOG_LEVEL_TRACE, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU "
"shareID (ignored), originatorID (ignored), lengthSourceDescriptor %d, "
"lengthCombinedCapabilities %d, sourceDescriptor (ignored), "
"numberCapabilities %d", source_len, cap_len, num_caps);
if ((cap_len < 0) || (cap_len > 1024 * 1024))
{
LOG(LOG_LEVEL_ERROR, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU "
"lengthCombinedCapabilities %d is too long (> %d)",
cap_len, 1024 * 1024);
return 1;
}
for (index = 0; index < num_caps; index++)
{
p = s->p;
if (!s_check_rem_and_log(s, 4,
"Parsing [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET"))
{
return 1;
}
in_uint16_le(s, type);
in_uint16_le(s, len);
LOG_DEVEL(LOG_LEVEL_TRACE, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType %d, lengthCapability %d", type, len);
if (len < 4)
{
LOG(LOG_LEVEL_ERROR,
"Protocol error [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"lengthCapability must be greater than 3, received %d", len);
return 1;
}
if (!s_check_rem_and_log(s, len - 4,
"Parsing [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "))
{
return 1;
}
len -= 4;
switch (type)
{
case CAPSTYPE_GENERAL:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_GENERAL");
xrdp_caps_process_general(self, s, len);
break;
case CAPSTYPE_BITMAP:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_BITMAP");
xrdp_caps_process_bitmap(self, s, len);
break;
case CAPSTYPE_ORDER:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_ORDER");
xrdp_caps_process_order(self, s, len);
break;
case CAPSTYPE_BITMAPCACHE:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_BITMAPCACHE");
xrdp_caps_process_bmpcache(self, s, len);
break;
case CAPSTYPE_CONTROL:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_CONTROL - Ignored");
break;
case 6:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = 6");
xrdp_caps_process_cache_v3_codec_id(self, s, len);
break;
case CAPSTYPE_ACTIVATION:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_ACTIVATION - Ignored");
break;
case CAPSTYPE_POINTER:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_POINTER");
xrdp_caps_process_pointer(self, s, len);
break;
case CAPSTYPE_SHARE:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_SHARE - Ignored");
break;
case CAPSTYPE_COLORCACHE:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_COLORCACHE - Ignored");
break;
case CAPSTYPE_SOUND:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_SOUND - Ignored");
break;
case CAPSTYPE_INPUT:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_INPUT");
xrdp_caps_process_input(self, s, len);
break;
case CAPSTYPE_FONT:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_FONT - Ignored");
break;
case CAPSTYPE_BRUSH:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_BRUSH");
xrdp_caps_process_brushcache(self, s, len);
break;
case CAPSTYPE_GLYPHCACHE:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_GLYPHCACHE");
xrdp_caps_process_glyphcache(self, s, len);
break;
case CAPSTYPE_OFFSCREENCACHE:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_OFFSCREENCACHE");
xrdp_caps_process_offscreen_bmpcache(self, s, len);
break;
case CAPSTYPE_BITMAPCACHE_REV2:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_BITMAPCACHE_REV2");
xrdp_caps_process_bmpcache2(self, s, len);
break;
case CAPSTYPE_VIRTUALCHANNEL:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_VIRTUALCHANNEL - Ignored");
break;
case CAPSTYPE_DRAWNINGRIDCACHE:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_DRAWNINGRIDCACHE - Ignored");
break;
case CAPSTYPE_DRAWGDIPLUS:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_DRAWGDIPLUS - Ignored");
break;
case CAPSTYPE_RAIL:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_RAIL");
xrdp_caps_process_rail(self, s, len);
break;
case CAPSTYPE_WINDOW:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_WINDOW");
xrdp_caps_process_window(self, s, len);
break;
case CAPSSETTYPE_MULTIFRAGMENTUPDATE:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSSETTYPE_MULTIFRAGMENTUPDATE");
xrdp_caps_process_multifragmentupdate(self, s, len);
break;
case CAPSETTYPE_LARGE_POINTER:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSETTYPE_LARGE_POINTER");
xrdp_caps_process_largepointer(self, s, len);
break;
case CAPSETTYPE_SURFACE_COMMANDS:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSETTYPE_SURFACE_COMMANDS");
xrdp_caps_process_surface_cmds(self, s, len);
break;
case CAPSSETTYPE_BITMAP_CODECS:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSSETTYPE_BITMAP_CODECS");
xrdp_caps_process_codecs(self, s, len);
break;
case CAPSTYPE_FRAME_ACKNOWLEDGE:
LOG_DEVEL(LOG_LEVEL_INFO, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = CAPSTYPE_FRAME_ACKNOWLEDGE");
xrdp_caps_process_frame_ack(self, s, len);
break;
default:
LOG(LOG_LEVEL_WARNING, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU - TS_CAPS_SET "
"capabilitySetType = %d is unknown - Ignored", type);
break;
}
s->p = p + len + 4;
}
if (self->client_info.no_orders_supported &&
(self->client_info.offscreen_support_level != 0))
{
LOG(LOG_LEVEL_WARNING, "Client Capability: not enough orders "
"supported by client, client wants off screen bitmap but "
"offscreen bitmaps disabled");
self->client_info.offscreen_support_level = 0;
self->client_info.offscreen_cache_size = 0;
self->client_info.offscreen_cache_entries = 0;
}
if (self->client_info.use_fast_path)
{
if ((self->client_info.large_pointer_support_flags & LARGE_POINTER_FLAG_96x96) &&
(self->client_info.max_fastpath_frag_bytes < 38055))
{
LOG(LOG_LEVEL_WARNING, "Client Capability: client requested "
"LARGE_POINTER_FLAG_96x96 but max_fastpath_frag_bytes(%d) is less then "
"the required size of 38055, 96x96 large cursor support disabled",
self->client_info.max_fastpath_frag_bytes);
self->client_info.large_pointer_support_flags &= ~LARGE_POINTER_FLAG_96x96;
}
if ((self->client_info.large_pointer_support_flags & LARGE_POINTER_FLAG_384x384) &&
(self->client_info.max_fastpath_frag_bytes < 608299))
{
LOG(LOG_LEVEL_WARNING, "Client Capability: client requested "
"LARGE_POINTER_FLAG_384x384 but max_fastpath_frag_bytes(%d) is less then "
"the required size of 608299, 384x384 large cursor support disabled",
self->client_info.max_fastpath_frag_bytes);
self->client_info.large_pointer_support_flags &= ~LARGE_POINTER_FLAG_384x384;
}
}
else
{
if (self->client_info.large_pointer_support_flags != 0)
{
LOG(LOG_LEVEL_WARNING, "Client Capability: client requested "
"large pointers but use_fast_path is false, "
"all large cursor support disabled");
self->client_info.large_pointer_support_flags = 0;
}
}
if (self->client_info.large_pointer_support_flags & LARGE_POINTER_FLAG_96x96)
{
LOG(LOG_LEVEL_INFO, "Client Capability: LARGE_POINTER_FLAG_96x96 supported");
}
if (self->client_info.large_pointer_support_flags & LARGE_POINTER_FLAG_384x384)
{
LOG(LOG_LEVEL_INFO, "Client Capability: LARGE_POINTER_FLAG_384x384 supported");
}
LOG_DEVEL(LOG_LEVEL_TRACE, "Completed processing received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU");
return 0;
}
/**************************************************************************//**
* Calculate the multifragmentupdate len we advertised to the client
* for fastpath updates
*
* See [MS-RDPBCGR] 2.2.7.2.6
*
* The basic logic is taken from freerdp 2.4. We try to use the highest
* useful request size that will allow us to pack a complete screen
* update into a single fast path PDU using any of the supported codecs.
* For RemoteFX, the client MUST use at least this value
*
* A backstop on the maximum advertised size is implemented to prevent
* extreme memory usage for large screen configurations. RDP supports a
* maximum desktop size of 32768x32768, which would cause overflow for
* 32-bit integers using a simple calculation.
*
* The codecs have to deal with the value returned by the client after
* we advertise our own value, and must not assume a complete update
* will fit in a single PDU
*/
static
unsigned int calculate_multifragmentupdate_len(const struct xrdp_rdp *self)
{
unsigned int result = MAX_MULTIFRAGMENTUPDATE_SIZE;
unsigned int x_tiles = (self->client_info.display_sizes.session_width + 63) / 64;
unsigned int y_tiles = (self->client_info.display_sizes.session_height + 63) / 64;
/* Check for overflow on calculation if bad parameters are supplied */
if ((x_tiles * y_tiles + 1) < (UINT_MAX / 16384))
{
result = x_tiles * y_tiles * 16384;
/* and add room for headers, regions, frame markers, etc. */
result += 16384;
}
return result;
}
/*****************************************************************************/
int
xrdp_caps_send_demand_active(struct xrdp_rdp *self)
{
struct stream *s;
int caps_count;
int caps_size;
int codec_caps_count;
int codec_caps_size;
int flags;
char *caps_count_ptr;
char *caps_size_ptr;
char *caps_ptr;
char *codec_caps_count_ptr;
char *codec_caps_size_ptr;
make_stream(s);
init_stream(s, 8192);
if (xrdp_rdp_init(self, s) != 0)
{
LOG(LOG_LEVEL_ERROR, "xrdp_caps_send_demand_active: xrdp_rdp_init failed");
free_stream(s);
return 1;
}
caps_count = 0;
out_uint32_le(s, self->share_id);
out_uint16_le(s, 4); /* 4 chars for RDP\0 */
/* 2 bytes size after num caps, set later */
caps_size_ptr = s->p;
out_uint8s(s, 2);
out_uint8a(s, "RDP", 4);
/* 4 byte num caps, set later */
caps_count_ptr = s->p;
out_uint8s(s, 4);
caps_ptr = s->p;
/* Output share capability set */
caps_count++;
out_uint16_le(s, CAPSTYPE_SHARE);
out_uint16_le(s, CAPSTYPE_SHARE_LEN);
out_uint16_le(s, self->mcs_channel);
out_uint16_be(s, 0xb5e2); /* 0x73e1 */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSTYPE_SHARE "
"channel ID = 0x%x", self->mcs_channel);
/* Output general capability set */
caps_count++;
out_uint16_le(s, CAPSTYPE_GENERAL);
out_uint16_le(s, CAPSTYPE_GENERAL_LEN);
out_uint16_le(s, OSMAJORTYPE_WINDOWS);
out_uint16_le(s, OSMINORTYPE_WINDOWS_NT);
out_uint16_le(s, 0x200); /* Protocol version */
out_uint16_le(s, 0); /* pad */
out_uint16_le(s, 0); /* Compression types */
if (self->client_info.use_fast_path & 1)
{
out_uint16_le(s, NO_BITMAP_COMPRESSION_HDR | FASTPATH_OUTPUT_SUPPORTED);
}
else
{
out_uint16_le(s, NO_BITMAP_COMPRESSION_HDR);
}
out_uint16_le(s, 0); /* Update capability */
out_uint16_le(s, 0); /* Remote unshare capability */
out_uint16_le(s, 0); /* Compression level */
out_uint8(s, 1); /* refreshRectSupport */
out_uint8(s, 1); /* suppressOutputSupport */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSTYPE_GENERAL TODO");
/* Output bitmap capability set */
caps_count++;
out_uint16_le(s, CAPSTYPE_BITMAP);
out_uint16_le(s, CAPSTYPE_BITMAP_LEN);
out_uint16_le(s, self->client_info.bpp); /* Preferred BPP */
out_uint16_le(s, 1); /* Receive 1 BPP */
out_uint16_le(s, 1); /* Receive 4 BPP */
out_uint16_le(s, 1); /* Receive 8 BPP */
out_uint16_le(s, self->client_info.display_sizes.session_width); /* width */
out_uint16_le(s, self->client_info.display_sizes.session_height); /* height */
out_uint16_le(s, 0); /* Pad */
out_uint16_le(s, 1); /* Allow resize */
out_uint16_le(s, 1); /* bitmap compression */
out_uint16_le(s, 0); /* unknown */
out_uint16_le(s, 0); /* unknown */
out_uint16_le(s, 0); /* pad */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSTYPE_BITMAP TODO");
/* Output font capability set */
caps_count++;
out_uint16_le(s, CAPSTYPE_FONT);
out_uint16_le(s, CAPSTYPE_FONT_LEN);
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSTYPE_FONT");
/* Output order capability set */
caps_count++;
out_uint16_le(s, CAPSTYPE_ORDER);
out_uint16_le(s, CAPSTYPE_ORDER_LEN);
out_uint8s(s, 16);
out_uint32_be(s, 0x40420f00);
out_uint16_le(s, 1); /* Cache X granularity */
out_uint16_le(s, 20); /* Cache Y granularity */
out_uint16_le(s, 0); /* Pad */
out_uint16_le(s, 1); /* Max order level */
out_uint16_le(s, 0x2f); /* Number of fonts */
out_uint16_le(s, 0x22); /* Capability flags */
/* caps */
out_uint8(s, 1); /* NEG_DSTBLT_INDEX 0x00 0 */
out_uint8(s, 1); /* NEG_PATBLT_INDEX 0x01 1 */
out_uint8(s, 1); /* NEG_SCRBLT_INDEX 0x02 2 */
out_uint8(s, 1); /* NEG_MEMBLT_INDEX 0x03 3 */
out_uint8(s, 0); /* NEG_MEM3BLT_INDEX 0x04 4 */
out_uint8(s, 0); /* NEG_ATEXTOUT_INDEX 0x05 5 */
out_uint8(s, 0); /* NEG_AEXTTEXTOUT_INDEX 0x06 6 */
out_uint8(s, 0); /* NEG_DRAWNINEGRID_INDEX 0x07 7 */
out_uint8(s, 1); /* NEG_LINETO_INDEX 0x08 8 */
out_uint8(s, 0); /* NEG_MULTI_DRAWNINEGRID_INDEX 0x09 9 */
out_uint8(s, 1); /* NEG_OPAQUE_RECT_INDEX 0x0A 10 */
out_uint8(s, 0); /* NEG_SAVEBITMAP_INDEX 0x0B 11 */
out_uint8(s, 0); /* NEG_WTEXTOUT_INDEX 0x0C 12 */
out_uint8(s, 0); /* NEG_MEMBLT_V2_INDEX 0x0D 13 */
out_uint8(s, 0); /* NEG_MEM3BLT_V2_INDEX 0x0E 14 */
out_uint8(s, 0); /* NEG_MULTIDSTBLT_INDEX 0x0F 15 */
out_uint8(s, 0); /* NEG_MULTIPATBLT_INDEX 0x10 16 */
out_uint8(s, 0); /* NEG_MULTISCRBLT_INDEX 0x11 17 */
out_uint8(s, 1); /* NEG_MULTIOPAQUERECT_INDEX 0x12 18 */
out_uint8(s, 0); /* NEG_FAST_INDEX_INDEX 0x13 19 */
out_uint8(s, 0); /* NEG_POLYGON_SC_INDEX 0x14 20 */
out_uint8(s, 0); /* NEG_POLYGON_CB_INDEX 0x15 21 */
out_uint8(s, 0); /* NEG_POLYLINE_INDEX 0x16 22 */
out_uint8(s, 0); /* unused 0x17 23 */
out_uint8(s, 0); /* NEG_FAST_GLYPH_INDEX 0x18 24 */
out_uint8(s, 0); /* NEG_ELLIPSE_SC_INDEX 0x19 25 */
out_uint8(s, 0); /* NEG_ELLIPSE_CB_INDEX 0x1A 26 */
out_uint8(s, 1); /* NEG_GLYPH_INDEX_INDEX 0x1B 27 */
out_uint8(s, 0); /* NEG_GLYPH_WEXTTEXTOUT_INDEX 0x1C 28 */
out_uint8(s, 0); /* NEG_GLYPH_WLONGTEXTOUT_INDEX 0x1D 29 */
out_uint8(s, 0); /* NEG_GLYPH_WLONGEXTTEXTOUT_INDEX 0x1E 30 */
out_uint8(s, 0); /* unused 0x1F 31 */
out_uint16_le(s, 0x6a1);
/* declare support of bitmap cache rev3 */
out_uint16_le(s, XR_ORDERFLAGS_EX_CACHE_BITMAP_REV3_SUPPORT);
out_uint32_le(s, 0x0f4240); /* desk save */
out_uint32_le(s, 0x0f4240); /* desk save */
out_uint32_le(s, 1); /* ? */
out_uint32_le(s, 0); /* ? */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSTYPE_ORDER "
"TODO");
/* Output bmpcodecs capability set */
caps_count++;
out_uint16_le(s, CAPSSETTYPE_BITMAP_CODECS);
codec_caps_size_ptr = s->p;
out_uint8s(s, 2); /* cap len set later */
codec_caps_count = 0;
codec_caps_count_ptr = s->p;
out_uint8s(s, 1); /* bitmapCodecCount set later */
/* nscodec */
codec_caps_count++;
out_uint8a(s, XR_CODEC_GUID_NSCODEC, 16);
out_uint8(s, 1); /* codec id, must be 1 */
out_uint16_le(s, 3); /* codecPropertiesLength */
out_uint8(s, 0x01); /* fAllowDynamicFidelity */
out_uint8(s, 0x01); /* fAllowSubsampling */
out_uint8(s, 0x03); /* colorLossLevel */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"NSCODEC "
"fAllowDynamicFidelity = 0x01,"
"fAllowSubsampling = 0x01,"
"colorLossLevel = 0x03");
#if defined(XRDP_RFXCODEC) || defined(XRDP_NEUTRINORDP)
/* remotefx */
codec_caps_count++;
out_uint8a(s, XR_CODEC_GUID_REMOTEFX, 16);
out_uint8(s, 0); /* codec id, client sets */
out_uint16_le(s, 4); /* codecPropertiesLength */
out_uint32_le(s, 0); /* reserved */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"REMOTEFX");
/* image remotefx */
codec_caps_count++;
out_uint8a(s, XR_CODEC_GUID_IMAGE_REMOTEFX, 16);
out_uint8(s, 0); /* codec id, client sets */
out_uint16_le(s, 4); /* codecPropertiesLength */
out_uint32_le(s, 0); /* reserved */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"IMAGE_REMOTEFX");
#endif
/* jpeg */
codec_caps_count++;
out_uint8a(s, XR_CODEC_GUID_JPEG, 16);
out_uint8(s, 0); /* codec id, client sets */
out_uint16_le(s, 1); /* codecPropertiesLength */
out_uint8(s, 75); /* jpeg compression ratio */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"JPEG: "
"jpeg compression ratio = 75");
/* calculate and set size and count */
codec_caps_size = (int)(s->p - codec_caps_size_ptr);
codec_caps_size += 2; /* 2 bytes for CAPSTYPE_BMPCODECS above */
codec_caps_size_ptr[0] = codec_caps_size;
codec_caps_size_ptr[1] = codec_caps_size >> 8;
codec_caps_count_ptr[0] = codec_caps_count;
/* Output color cache capability set */
caps_count++;
out_uint16_le(s, CAPSTYPE_COLORCACHE);
out_uint16_le(s, CAPSTYPE_COLORCACHE_LEN);
out_uint16_le(s, 6); /* cache size */
out_uint16_le(s, 0); /* pad */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSTYPE_COLORCACHE: "
"colorTableCacheSize = 6");
/* Output pointer capability set */
caps_count++;
out_uint16_le(s, CAPSTYPE_POINTER);
out_uint16_le(s, CAPSTYPE_POINTER_LEN);
out_uint16_le(s, 1); /* Colour pointer */
out_uint16_le(s, 0x19); /* Cache size */
out_uint16_le(s, 0x19); /* Cache size */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSTYPE_POINTER: "
"colorPointerFlag = true"
"colorPointerCacheSize = 0x19"
"pointerCacheSize = 0x19");
/* Output input capability set */
/* https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/b3bc76ae-9ee5-454f-b197-ede845ca69cc */
caps_count++;
out_uint16_le(s, CAPSTYPE_INPUT);
out_uint16_le(s, CAPSTYPE_INPUT_LEN);
flags = INPUT_FLAG_SCANCODES |
INPUT_FLAG_MOUSEX |
INPUT_FLAG_UNICODE |
TS_INPUT_FLAG_MOUSE_HWHEEL;
if (self->client_info.use_fast_path & 2)
{
flags |= INPUT_FLAG_FASTPATH_INPUT | INPUT_FLAG_FASTPATH_INPUT2;
}
out_uint16_le(s, flags);
out_uint8s(s, 82);
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSTYPE_INPUT: "
"inputFlags = 0x%x", flags);
if (self->client_info.rail_enable) /* MS-RDPERP 3.3.5.1.4 */
{
/* Remote Programs Capability Set */
caps_count++;
out_uint16_le(s, CAPSTYPE_RAIL);
out_uint16_le(s, 8); /* LengthCapability: MS-RDPERP 2.2.1.1.1 */
out_uint32_le(s, 3); /* See: https://msdn.microsoft.com/en-us/library/cc242518.aspx
TS_RAIL_LEVEL_SUPPORTED
TS_RAIL_LEVEL_DOCKED_LANGBAR_SUPPORTED */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSTYPE_RAIL: "
"RailSupportLevel = "
"TS_RAIL_LEVEL_SUPPORTED | TS_RAIL_LEVEL_DOCKED_LANGBAR_SUPPORTED");
/* Window List Capability Set */
caps_count++;
out_uint16_le(s, CAPSTYPE_WINDOW);
out_uint16_le(s, 11); /* LengthCapability: MS-RDPERP 2.2.1.1.2 */
out_uint32_le(s, TS_WINDOW_LEVEL_SUPPORTED_EX);
out_uint8(s, 3); /* NumIconCaches */
out_uint16_le(s, 12); /* NumIconCacheEntries */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSTYPE_WINDOW: "
"WndSupportLevel = TS_WINDOW_LEVEL_SUPPORTED_EX, "
"NumIconCaches = 3,"
"NumIconCacheEntries = 12");
}
/* 6 - bitmap cache v3 codecid */
caps_count++;
out_uint16_le(s, 0x0006);
out_uint16_le(s, 5);
out_uint8(s, 0); /* client sets */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"0x0006 = 0");
if (self->client_info.use_fast_path & FASTPATH_OUTPUT_SUPPORTED) /* fastpath output on */
{
unsigned int max_request_size = calculate_multifragmentupdate_len(self);
caps_count++;
out_uint16_le(s, CAPSSETTYPE_MULTIFRAGMENTUPDATE);
out_uint16_le(s, CAPSSETTYPE_MULTIFRAGMENTUPDATE_LEN);
out_uint32_le(s, max_request_size);
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSSETTYPE_MULTIFRAGMENTUPDATE = %d", max_request_size);
/* large pointer 96x96 */
caps_count++;
out_uint16_le(s, CAPSETTYPE_LARGE_POINTER);
out_uint16_le(s, CAPSETTYPE_LARGE_POINTER_LEN);
out_uint16_le(s, LARGE_POINTER_FLAG_96x96);
/* frame acks */
caps_count++;
out_uint16_le(s, CAPSTYPE_FRAME_ACKNOWLEDGE);
out_uint16_le(s, CAPSTYPE_FRAME_ACKNOWLEDGE_LEN);
out_uint32_le(s, 2); /* 2 frames in flight */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSTYPE_FRAME_ACKNOWLEDGE = 2 frames");
/* surface commands */
caps_count++;
out_uint16_le(s, CAPSETTYPE_SURFACE_COMMANDS);
out_uint16_le(s, CAPSETTYPE_SURFACE_COMMANDS_LEN);
out_uint32_le(s, (SURFCMDS_SETSURFACEBITS |
SURFCMDS_FRAMEMARKER |
SURFCMDS_STREAMSUFRACEBITS)); /* cmdFlags */
out_uint32_le(s, 0); /* reserved */
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: Server Capability "
"CAPSETTYPE_SURFACE_COMMANDS = "
"SURFCMDS_SETSURFACEBITS | SURFCMDS_FRAMEMARKER | SURFCMDS_STREAMSUFRACEBITS");
}
out_uint8s(s, 4); /* pad */
s_mark_end(s);
caps_size = (int)(s->end - caps_ptr);
caps_size_ptr[0] = caps_size;
caps_size_ptr[1] = caps_size >> 8;
caps_count_ptr[0] = caps_count;
caps_count_ptr[1] = caps_count >> 8;
caps_count_ptr[2] = caps_count >> 16;
caps_count_ptr[3] = caps_count >> 24;
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: sending PDUTYPE_DEMANDACTIVEPDU "
"message with the server's capabilities");
if (xrdp_rdp_send(self, s, PDUTYPE_DEMANDACTIVEPDU) != 0)
{
LOG(LOG_LEVEL_ERROR, "xrdp_caps_send_demand_active: xrdp_rdp_send failed");
free_stream(s);
return 1;
}
/* send Monitor Layout PDU for multi-monitor */
int early_cap_flags = self->client_info.mcs_early_capability_flags;
if ((early_cap_flags & RNS_UD_CS_SUPPORT_MONITOR_LAYOUT_PDU) != 0 &&
self->client_info.display_sizes.monitorCount > 0 &&
self->client_info.multimon == 1)
{
LOG_DEVEL(LOG_LEVEL_TRACE, "xrdp_caps_send_demand_active: sending monitor layout pdu");
if (xrdp_caps_send_monitorlayout(self) != 0)
{
LOG(LOG_LEVEL_ERROR, "xrdp_caps_send_demand_active: error sending monitor layout pdu");
}
}
free_stream(s);
return 0;
}
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