349 lines
9.5 KiB
C
349 lines
9.5 KiB
C
/**
|
|
* xrdp: A Remote Desktop Protocol server.
|
|
*
|
|
* Copyright (C) Jay Sorg 2012-2014
|
|
* Copyright (C) Idan Freiberg 2013-2014
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "libxrdp.h"
|
|
|
|
/*****************************************************************************/
|
|
struct xrdp_fastpath *APP_CC
|
|
xrdp_fastpath_create(struct xrdp_sec *owner, struct trans *trans)
|
|
{
|
|
struct xrdp_fastpath *self;
|
|
|
|
DEBUG((" in xrdp_fastpath_create"));
|
|
self = (struct xrdp_fastpath *)g_malloc(sizeof(struct xrdp_fastpath), 1);
|
|
self->sec_layer = owner;
|
|
self->trans = trans;
|
|
self->session = owner->rdp_layer->session;
|
|
DEBUG((" out xrdp_fastpath_create"));
|
|
return self;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
void APP_CC
|
|
xrdp_fastpath_delete(struct xrdp_fastpath *self)
|
|
{
|
|
if (self == 0)
|
|
{
|
|
return;
|
|
}
|
|
g_free(self);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* returns error */
|
|
int APP_CC
|
|
xrdp_fastpath_reset(struct xrdp_fastpath *self)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
int APP_CC
|
|
xrdp_fastpath_recv(struct xrdp_fastpath *self, struct stream *s)
|
|
{
|
|
int fp_hdr;
|
|
int len = 0; /* unused */
|
|
int byte;
|
|
char *holdp;
|
|
|
|
DEBUG((" in xrdp_fastpath_recv"));
|
|
holdp = s->p;
|
|
if (!s_check_rem(s, 2))
|
|
{
|
|
return 1;
|
|
}
|
|
in_uint8(s, fp_hdr); /* fpInputHeader (1 byte) */
|
|
in_uint8(s, byte); /* length 1 (1 byte) */
|
|
|
|
self->numEvents = (fp_hdr & 0x3C) >> 2;
|
|
self->secFlags = (fp_hdr & 0xC0) >> 6;
|
|
|
|
if (byte & 0x80)
|
|
{
|
|
byte &= ~(0x80);
|
|
len = (byte << 8);
|
|
|
|
if (!s_check_rem(s, 1))
|
|
{
|
|
return 1;
|
|
}
|
|
in_uint8(s, byte); /* length 2 (1 byte) */
|
|
|
|
len += byte;
|
|
}
|
|
else
|
|
{
|
|
len = byte;
|
|
}
|
|
s->next_packet = holdp + len;
|
|
DEBUG((" out xrdp_fastpath_recv"));
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* no fragmenation */
|
|
int APP_CC
|
|
xrdp_fastpath_init(struct xrdp_fastpath *self, struct stream *s)
|
|
{
|
|
int bytes;
|
|
|
|
bytes = self->session->client_info->max_fastpath_frag_bytes;
|
|
if (bytes < 32 * 1024)
|
|
{
|
|
bytes = 32 * 1024;
|
|
}
|
|
init_stream(s, bytes);
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
static int APP_CC
|
|
xrdp_fastpath_session_callback(struct xrdp_fastpath *self, int msg,
|
|
long param1, long param2,
|
|
long param3, long param4)
|
|
{
|
|
if (self->session->callback != 0)
|
|
{
|
|
/* msg_type can be
|
|
RDP_INPUT_SYNCHRONIZE - 0
|
|
RDP_INPUT_SCANCODE - 4
|
|
RDP_INPUT_MOUSE - 0x8001
|
|
RDP_INPUT_MOUSEX - 0x8002 */
|
|
/* call to xrdp_wm.c : callback */
|
|
self->session->callback(self->session->id, msg,
|
|
param1, param2, param3, param4);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* no fragmenation */
|
|
int APP_CC
|
|
xrdp_fastpath_send(struct xrdp_fastpath *self, struct stream *s)
|
|
{
|
|
if (trans_force_write_s(self->trans, s) != 0)
|
|
{
|
|
return 1;
|
|
}
|
|
xrdp_fastpath_session_callback(self, 0x5556, 0, 0, 0, 0);
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* FASTPATH_INPUT_EVENT_SCANCODE */
|
|
static int APP_CC
|
|
xrdp_fastpath_process_EVENT_SCANCODE(struct xrdp_fastpath *self,
|
|
int eventFlags, struct stream *s)
|
|
{
|
|
int flags;
|
|
int code;
|
|
flags = 0;
|
|
|
|
if (!s_check_rem(s, 1))
|
|
{
|
|
return 1;
|
|
}
|
|
in_uint8(s, code); /* keyCode (1 byte) */
|
|
|
|
if ((eventFlags & FASTPATH_INPUT_KBDFLAGS_RELEASE))
|
|
{
|
|
flags |= KBD_FLAG_UP;
|
|
}
|
|
else
|
|
{
|
|
flags |= KBD_FLAG_DOWN;
|
|
}
|
|
|
|
if ((eventFlags & FASTPATH_INPUT_KBDFLAGS_EXTENDED))
|
|
flags |= KBD_FLAG_EXT;
|
|
|
|
xrdp_fastpath_session_callback(self, RDP_INPUT_SCANCODE,
|
|
code, 0, flags, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* FASTPATH_INPUT_EVENT_MOUSE */
|
|
static int APP_CC
|
|
xrdp_fastpath_process_EVENT_MOUSE(struct xrdp_fastpath *self,
|
|
int eventFlags, struct stream *s)
|
|
{
|
|
int pointerFlags;
|
|
int xPos;
|
|
int yPos;
|
|
|
|
/* eventFlags MUST be zeroed out */
|
|
if (eventFlags != 0)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
if (!s_check_rem(s, 2 + 2 + 2))
|
|
{
|
|
return 1;
|
|
}
|
|
in_uint16_le(s, pointerFlags); /* pointerFlags (2 bytes) */
|
|
in_uint16_le(s, xPos); /* xPos (2 bytes) */
|
|
in_uint16_le(s, yPos); /* yPos (2 bytes) */
|
|
|
|
xrdp_fastpath_session_callback(self, RDP_INPUT_MOUSE,
|
|
xPos, yPos, pointerFlags, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* FASTPATH_INPUT_EVENT_MOUSEX */
|
|
static int APP_CC
|
|
xrdp_fastpath_process_EVENT_MOUSEX(struct xrdp_fastpath *self,
|
|
int eventFlags, struct stream *s)
|
|
{
|
|
int pointerFlags;
|
|
int xPos;
|
|
int yPos;
|
|
|
|
/* eventFlags MUST be zeroed out */
|
|
if (eventFlags != 0)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
if (!s_check_rem(s, 2 + 2 + 2))
|
|
{
|
|
return 1;
|
|
}
|
|
in_uint16_le(s, pointerFlags); /* pointerFlags (2 bytes) */
|
|
in_uint16_le(s, xPos); /* xPos (2 bytes) */
|
|
in_uint16_le(s, yPos); /* yPos (2 bytes) */
|
|
|
|
xrdp_fastpath_session_callback(self, RDP_INPUT_MOUSEX,
|
|
xPos, yPos, pointerFlags, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* FASTPATH_INPUT_EVENT_SYNC */
|
|
static int APP_CC
|
|
xrdp_fastpath_process_EVENT_SYNC(struct xrdp_fastpath *self,
|
|
int eventFlags, struct stream *s)
|
|
{
|
|
/*
|
|
* The eventCode bitfield (3 bits in size) MUST be set to
|
|
* FASTPATH_INPUT_EVENT_SYNC (3).
|
|
* The eventFlags bitfield (5 bits in size) contains flags
|
|
* indicating the "on"
|
|
* status of the keyboard toggle keys.
|
|
*/
|
|
|
|
xrdp_fastpath_session_callback(self, RDP_INPUT_SYNCHRONIZE,
|
|
eventFlags, 0, 0, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* FASTPATH_INPUT_EVENT_UNICODE */
|
|
static int APP_CC
|
|
xrdp_fastpath_process_EVENT_UNICODE(struct xrdp_fastpath *self,
|
|
int eventFlags, struct stream *s)
|
|
{
|
|
if (!s_check_rem(s, 2))
|
|
{
|
|
return 1;
|
|
}
|
|
in_uint8s(s, 2);
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* FASTPATH_INPUT_EVENT */
|
|
int APP_CC
|
|
xrdp_fastpath_process_input_event(struct xrdp_fastpath *self,
|
|
struct stream *s)
|
|
{
|
|
int i;
|
|
int eventHeader;
|
|
int eventCode;
|
|
int eventFlags;
|
|
|
|
/* process fastpath input events */
|
|
for (i = 0; i < self->numEvents; i++)
|
|
{
|
|
if (!s_check_rem(s, 1))
|
|
{
|
|
return 1;
|
|
}
|
|
in_uint8(s, eventHeader);
|
|
|
|
eventFlags = (eventHeader & 0x1F);
|
|
eventCode = (eventHeader >> 5);
|
|
|
|
switch (eventCode)
|
|
{
|
|
case FASTPATH_INPUT_EVENT_SCANCODE:
|
|
if (xrdp_fastpath_process_EVENT_SCANCODE(self,
|
|
eventFlags,
|
|
s) != 0)
|
|
{
|
|
return 1;
|
|
}
|
|
break;
|
|
case FASTPATH_INPUT_EVENT_MOUSE:
|
|
if (xrdp_fastpath_process_EVENT_MOUSE(self,
|
|
eventFlags,
|
|
s) != 0)
|
|
{
|
|
return 1;
|
|
}
|
|
break;
|
|
case FASTPATH_INPUT_EVENT_MOUSEX:
|
|
if (xrdp_fastpath_process_EVENT_MOUSEX(self,
|
|
eventFlags,
|
|
s) != 0)
|
|
{
|
|
return 1;
|
|
}
|
|
break;
|
|
case FASTPATH_INPUT_EVENT_SYNC:
|
|
if (xrdp_fastpath_process_EVENT_SYNC(self,
|
|
eventFlags,
|
|
s) != 0)
|
|
{
|
|
return 1;
|
|
}
|
|
break;
|
|
case FASTPATH_INPUT_EVENT_UNICODE:
|
|
if (xrdp_fastpath_process_EVENT_UNICODE(self,
|
|
eventFlags,
|
|
s) != 0)
|
|
{
|
|
return 1;
|
|
}
|
|
break;
|
|
default:
|
|
g_writeln("xrdp_fastpath_process_input_event: unknown "
|
|
"eventCode %d", eventCode);
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|