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xrdp-proprietary/libxrdp/xrdp_rdp.c

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/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2013
*
* 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 layer
*/
#include "libxrdp.h"
#include "log.h"
#if defined(XRDP_NEUTRINORDP)
#include <freerdp/codec/rfx.h>
#endif
/* some compilers need unsigned char to avoid warnings */
static tui8 g_unknown1[172] =
{
0xff, 0x02, 0xb6, 0x00, 0x28, 0x00, 0x00, 0x00,
0x27, 0x00, 0x27, 0x00, 0x03, 0x00, 0x04, 0x00,
0x00, 0x00, 0x26, 0x00, 0x01, 0x00, 0x1e, 0x00,
0x02, 0x00, 0x1f, 0x00, 0x03, 0x00, 0x1d, 0x00,
0x04, 0x00, 0x27, 0x00, 0x05, 0x00, 0x0b, 0x00,
0x06, 0x00, 0x28, 0x00, 0x08, 0x00, 0x21, 0x00,
0x09, 0x00, 0x20, 0x00, 0x0a, 0x00, 0x22, 0x00,
0x0b, 0x00, 0x25, 0x00, 0x0c, 0x00, 0x24, 0x00,
0x0d, 0x00, 0x23, 0x00, 0x0e, 0x00, 0x19, 0x00,
0x0f, 0x00, 0x16, 0x00, 0x10, 0x00, 0x15, 0x00,
0x11, 0x00, 0x1c, 0x00, 0x12, 0x00, 0x1b, 0x00,
0x13, 0x00, 0x1a, 0x00, 0x14, 0x00, 0x17, 0x00,
0x15, 0x00, 0x18, 0x00, 0x16, 0x00, 0x0e, 0x00,
0x18, 0x00, 0x0c, 0x00, 0x19, 0x00, 0x0d, 0x00,
0x1a, 0x00, 0x12, 0x00, 0x1b, 0x00, 0x14, 0x00,
0x1f, 0x00, 0x13, 0x00, 0x20, 0x00, 0x00, 0x00,
0x21, 0x00, 0x0a, 0x00, 0x22, 0x00, 0x06, 0x00,
0x23, 0x00, 0x07, 0x00, 0x24, 0x00, 0x08, 0x00,
0x25, 0x00, 0x09, 0x00, 0x26, 0x00, 0x04, 0x00,
0x27, 0x00, 0x03, 0x00, 0x28, 0x00, 0x02, 0x00,
0x29, 0x00, 0x01, 0x00, 0x2a, 0x00, 0x05, 0x00,
0x2b, 0x00, 0x2a, 0x00
};
/* some compilers need unsigned char to avoid warnings */
/*
static tui8 g_unknown2[8] =
{ 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x04, 0x00 };
*/
/*****************************************************************************/
static int APP_CC
xrdp_rdp_read_config(struct xrdp_client_info *client_info)
{
int index = 0;
struct list *items = (struct list *)NULL;
struct list *values = (struct list *)NULL;
char *item = (char *)NULL;
char *value = (char *)NULL;
char cfg_file[256];
/* initialize (zero out) local variables: */
g_memset(cfg_file, 0, sizeof(char) * 256);
items = list_create();
items->auto_free = 1;
values = list_create();
values->auto_free = 1;
g_snprintf(cfg_file, 255, "%s/xrdp.ini", XRDP_CFG_PATH);
DEBUG(("cfg_file %s", cfg_file));
file_by_name_read_section(cfg_file, "globals", items, values);
for (index = 0; index < items->count; index++)
{
item = (char *)list_get_item(items, index);
value = (char *)list_get_item(values, index);
DEBUG(("item %s value %s", item, value));
if (g_strcasecmp(item, "bitmap_cache") == 0)
{
client_info->use_bitmap_cache = g_text2bool(value);
}
else if (g_strcasecmp(item, "bitmap_compression") == 0)
{
client_info->use_bitmap_comp = g_text2bool(value);
}
else if (g_strcasecmp(item, "bulk_compression") == 0)
{
client_info->use_bulk_comp = g_text2bool(value);
}
else if (g_strcasecmp(item, "crypt_level") == 0)
{
if (g_strcasecmp(value, "low") == 0)
{
client_info->crypt_level = 1;
}
else if (g_strcasecmp(value, "medium") == 0)
{
client_info->crypt_level = 2;
}
else if (g_strcasecmp(value, "high") == 0)
{
client_info->crypt_level = 3;
}
else
{
log_message(LOG_LEVEL_ALWAYS,"Warning: Your configured crypt level is"
"undefined 'high' will be used");
client_info->crypt_level = 3;
}
}
else if (g_strcasecmp(item, "allow_channels") == 0)
{
client_info->channel_code = g_text2bool(value);
if (client_info->channel_code == 0)
{
log_message(LOG_LEVEL_DEBUG,"Info - All channels are disabled");
}
}
else if (g_strcasecmp(item, "max_bpp") == 0)
{
client_info->max_bpp = g_atoi(value);
}
else if (g_strcasecmp(item, "rfx_min_pixel") == 0)
{
client_info->rfx_min_pixel = g_atoi(value);
}
else if (g_strcasecmp(item, "new_cursors") == 0)
{
client_info->pointer_flags = g_text2bool(value) == 0 ? 2 : 0;
}
else if (g_strcasecmp(item, "require_credentials") == 0)
{
client_info->require_credentials = g_text2bool(value);
}
}
list_delete(items);
list_delete(values);
return 0;
}
#if defined(XRDP_NEUTRINORDP)
/*****************************************************************************/
static void
cpuid(tui32 info, tui32 *eax, tui32 *ebx, tui32 *ecx, tui32 *edx)
{
#ifdef __GNUC__
#if defined(__i386__) || defined(__x86_64__)
__asm volatile
(
/* The EBX (or RBX register on x86_64) is used for the PIC base address
and must not be corrupted by our inline assembly. */
#if defined(__i386__)
"mov %%ebx, %%esi;"
"cpuid;"
"xchg %%ebx, %%esi;"
#else
"mov %%rbx, %%rsi;"
"cpuid;"
"xchg %%rbx, %%rsi;"
#endif
: "=a" (*eax), "=S" (*ebx), "=c" (*ecx), "=d" (*edx)
: "0" (info)
);
#endif
#endif
}
/*****************************************************************************/
static tui32
xrdp_rdp_detect_cpu(void)
{
tui32 eax;
tui32 ebx;
tui32 ecx;
tui32 edx;
tui32 cpu_opt;
eax = 0;
ebx = 0;
ecx = 0;
edx = 0;
cpu_opt = 0;
cpuid(1, &eax, &ebx, &ecx, &edx);
if (edx & (1 << 26))
{
DEBUG(("SSE2 detected"));
cpu_opt |= CPU_SSE2;
}
return cpu_opt;
}
#endif
/*****************************************************************************/
struct xrdp_rdp *APP_CC
xrdp_rdp_create(struct xrdp_session *session, struct trans *trans)
{
struct xrdp_rdp *self = (struct xrdp_rdp *)NULL;
int bytes;
DEBUG(("in xrdp_rdp_create"));
self = (struct xrdp_rdp *)g_malloc(sizeof(struct xrdp_rdp), 1);
self->session = session;
self->share_id = 66538;
/* read ini settings */
xrdp_rdp_read_config(&self->client_info);
/* create sec layer */
self->sec_layer = xrdp_sec_create(self, trans, self->client_info.crypt_level,
self->client_info.channel_code);
/* default 8 bit v1 color bitmap cache entries and size */
self->client_info.cache1_entries = 600;
self->client_info.cache1_size = 256;
self->client_info.cache2_entries = 300;
self->client_info.cache2_size = 1024;
self->client_info.cache3_entries = 262;
self->client_info.cache3_size = 4096;
/* load client ip info */
bytes = sizeof(self->client_info.client_ip) - 1;
g_write_ip_address(trans->sck, self->client_info.client_ip, bytes);
self->mppc_enc = mppc_enc_new(PROTO_RDP_50);
#if defined(XRDP_NEUTRINORDP)
self->rfx_enc = rfx_context_new();
rfx_context_set_cpu_opt(self->rfx_enc, xrdp_rdp_detect_cpu());
#endif
self->client_info.size = sizeof(self->client_info);
DEBUG(("out xrdp_rdp_create"));
return self;
}
/*****************************************************************************/
void APP_CC
xrdp_rdp_delete(struct xrdp_rdp *self)
{
if (self == 0)
{
return;
}
xrdp_sec_delete(self->sec_layer);
mppc_enc_free(self->mppc_enc);
#if defined(XRDP_NEUTRINORDP)
rfx_context_free((RFX_CONTEXT *)(self->rfx_enc));
#endif
g_free(self);
}
/*****************************************************************************/
int APP_CC
xrdp_rdp_init(struct xrdp_rdp *self, struct stream *s)
{
if (xrdp_sec_init(self->sec_layer, s) != 0)
{
return 1;
}
s_push_layer(s, rdp_hdr, 6);
return 0;
}
/*****************************************************************************/
int APP_CC
xrdp_rdp_init_data(struct xrdp_rdp *self, struct stream *s)
{
if (xrdp_sec_init(self->sec_layer, s) != 0)
{
return 1;
}
s_push_layer(s, rdp_hdr, 18);
return 0;
}
/*****************************************************************************/
/* returns erros */
int APP_CC
xrdp_rdp_recv(struct xrdp_rdp *self, struct stream *s, int *code)
{
int error = 0;
int len = 0;
int pdu_code = 0;
int chan = 0;
DEBUG(("in xrdp_rdp_recv"));
if (s->next_packet == 0 || s->next_packet >= s->end)
{
chan = 0;
error = xrdp_sec_recv(self->sec_layer, s, &chan);
if (error == -1) /* special code for send demand active */
{
s->next_packet = 0;
*code = -1;
DEBUG(("out (1) xrdp_rdp_recv"));
return 0;
}
if (error != 0)
{
DEBUG(("out xrdp_rdp_recv error"));
return 1;
}
if ((chan != MCS_GLOBAL_CHANNEL) && (chan > 0))
{
if (chan > MCS_GLOBAL_CHANNEL)
{
if (xrdp_channel_process(self->sec_layer->chan_layer, s, chan) != 0)
{
g_writeln("xrdp_channel_process returned unhandled error") ;
}
}
else
{
g_writeln("Wrong channel Id to be handled by xrdp_channel_process %d", chan);
}
s->next_packet = 0;
*code = 0;
DEBUG(("out (2) xrdp_rdp_recv"));
return 0;
}
s->next_packet = s->p;
}
else
{
DEBUG(("xrdp_rdp_recv stream not touched"))
s->p = s->next_packet;
}
if (!s_check_rem(s, 6))
{
s->next_packet = 0;
*code = 0;
DEBUG(("out (3) xrdp_rdp_recv"));
len = (int)(s->end - s->p);
g_writeln("xrdp_rdp_recv: bad RDP packet, length [%d]", len);
return 0;
}
else
{
in_uint16_le(s, len);
/*g_writeln("New len received : %d next packet: %d s_end: %d",len,s->next_packet,s->end); */
in_uint16_le(s, pdu_code);
*code = pdu_code & 0xf;
in_uint8s(s, 2); /* mcs user id */
s->next_packet += len;
DEBUG(("out (4) xrdp_rdp_recv"));
return 0;
}
}
/*****************************************************************************/
int APP_CC
xrdp_rdp_send(struct xrdp_rdp *self, struct stream *s, int pdu_type)
{
int len = 0;
DEBUG(("in xrdp_rdp_send"));
s_pop_layer(s, rdp_hdr);
len = s->end - s->p;
out_uint16_le(s, len);
out_uint16_le(s, 0x10 | pdu_type);
out_uint16_le(s, self->mcs_channel);
if (xrdp_sec_send(self->sec_layer, s, MCS_GLOBAL_CHANNEL) != 0)
{
DEBUG(("out xrdp_rdp_send error"));
return 1;
}
DEBUG(("out xrdp_rdp_send"));
return 0;
}
/*****************************************************************************/
int APP_CC
xrdp_rdp_send_data(struct xrdp_rdp *self, struct stream *s,
int data_pdu_type)
{
int len;
int ctype;
int clen;
int dlen;
int pdulen;
int pdutype;
int tocomplen;
int iso_offset;
int mcs_offset;
int sec_offset;
int rdp_offset;
struct stream ls;
struct xrdp_mppc_enc *mppc_enc;
DEBUG(("in xrdp_rdp_send_data"));
s_pop_layer(s, rdp_hdr);
len = (int)(s->end - s->p);
pdutype = 0x10 | RDP_PDU_DATA;
pdulen = len;
dlen = len;
ctype = 0;
clen = len;
tocomplen = pdulen - 18;
if (self->client_info.rdp_compression && self->session->up_and_running)
{
mppc_enc = self->mppc_enc;
if (compress_rdp(mppc_enc, (tui8 *)(s->p + 18), tocomplen))
{
DEBUG(("mppc_encode ok flags 0x%x bytes_in_opb %d historyOffset %d "
"tocomplen %d", mppc_enc->flags, mppc_enc->bytes_in_opb,
mppc_enc->historyOffset, tocomplen));
if (mppc_enc->flags & RDP_MPPC_COMPRESSED)
{
clen = mppc_enc->bytes_in_opb + 18;
pdulen = clen;
ctype = mppc_enc->flags;
iso_offset = (int)(s->iso_hdr - s->data);
mcs_offset = (int)(s->mcs_hdr - s->data);
sec_offset = (int)(s->sec_hdr - s->data);
rdp_offset = (int)(s->rdp_hdr - s->data);
/* outputBuffer has 64 bytes preceding it */
ls.data = mppc_enc->outputBuffer - (rdp_offset + 18);
ls.p = ls.data + rdp_offset;
ls.end = ls.p + clen;
ls.size = clen;
ls.iso_hdr = ls.data + iso_offset;
ls.mcs_hdr = ls.data + mcs_offset;
ls.sec_hdr = ls.data + sec_offset;
ls.rdp_hdr = ls.data + rdp_offset;
ls.channel_hdr = 0;
ls.next_packet = 0;
s = &ls;
}
}
else
{
g_writeln("mppc_encode not ok: type %d flags %d", mppc_enc->protocol_type, mppc_enc->flags);
}
}
out_uint16_le(s, pdulen);
out_uint16_le(s, pdutype);
out_uint16_le(s, self->mcs_channel);
out_uint32_le(s, self->share_id);
out_uint8(s, 0);
out_uint8(s, 1);
out_uint16_le(s, dlen);
out_uint8(s, data_pdu_type);
out_uint8(s, ctype);
out_uint16_le(s, clen);
if (xrdp_sec_send(self->sec_layer, s, MCS_GLOBAL_CHANNEL) != 0)
{
DEBUG(("out xrdp_rdp_send_data error"));
return 1;
}
DEBUG(("out xrdp_rdp_send_data"));
return 0;
}
/*****************************************************************************/
int APP_CC
xrdp_rdp_send_data_update_sync(struct xrdp_rdp *self)
{
struct stream *s = (struct stream *)NULL;
make_stream(s);
init_stream(s, 8192);
DEBUG(("in xrdp_rdp_send_data_update_sync"));
if (xrdp_rdp_init_data(self, s) != 0)
{
DEBUG(("out xrdp_rdp_send_data_update_sync error"));
free_stream(s);
return 1;
}
out_uint16_le(s, RDP_UPDATE_SYNCHRONIZE);
out_uint8s(s, 2);
s_mark_end(s);
if (xrdp_rdp_send_data(self, s, RDP_DATA_PDU_UPDATE) != 0)
{
DEBUG(("out xrdp_rdp_send_data_update_sync error"));
free_stream(s);
return 1;
}
DEBUG(("out xrdp_rdp_send_data_update_sync"));
free_stream(s);
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_rdp_parse_client_mcs_data(struct xrdp_rdp *self)
{
struct stream *p = (struct stream *)NULL;
int i = 0;
p = &(self->sec_layer->client_mcs_data);
p->p = p->data;
if (!s_check_rem(p, 31 + 2 + 2 + 120 + 2))
{
g_writeln("xrdp_rdp_parse_client_mcs_data: error");
return 1;
}
in_uint8s(p, 31);
in_uint16_le(p, self->client_info.width);
in_uint16_le(p, self->client_info.height);
in_uint8s(p, 120);
self->client_info.bpp = 8;
in_uint16_le(p, i);
switch (i)
{
case 0xca01:
if (!s_check_rem(p, 6 + 1))
{
return 1;
}
in_uint8s(p, 6);
in_uint8(p, i);
if (i > 8)
{
self->client_info.bpp = i;
}
break;
case 0xca02:
self->client_info.bpp = 15;
break;
case 0xca03:
self->client_info.bpp = 16;
break;
case 0xca04:
self->client_info.bpp = 24;
break;
}
if (self->client_info.max_bpp > 0)
{
if (self->client_info.bpp > self->client_info.max_bpp)
{
self->client_info.bpp = self->client_info.max_bpp;
}
}
p->p = p->data;
DEBUG(("client width %d, client height %d bpp %d",
self->client_info.width, self->client_info.height,
self->client_info.bpp));
return 0;
}
/*****************************************************************************/
int APP_CC
xrdp_rdp_incoming(struct xrdp_rdp *self)
{
DEBUG(("in xrdp_rdp_incoming"));
if (xrdp_sec_incoming(self->sec_layer) != 0)
{
return 1;
}
self->mcs_channel = self->sec_layer->mcs_layer->userid +
MCS_USERCHANNEL_BASE;
xrdp_rdp_parse_client_mcs_data(self);
DEBUG(("out xrdp_rdp_incoming mcs channel %d", self->mcs_channel));
return 0;
}
/*****************************************************************************/
int APP_CC
xrdp_rdp_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)
{
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, RDP_CAPSET_SHARE);
out_uint16_le(s, RDP_CAPLEN_SHARE);
out_uint16_le(s, self->mcs_channel);
out_uint16_be(s, 0xb5e2); /* 0x73e1 */
/* Output general capability set */
caps_count++;
out_uint16_le(s, RDP_CAPSET_GENERAL); /* 1 */
out_uint16_le(s, RDP_CAPLEN_GENERAL); /* 24(0x18) */
out_uint16_le(s, 1); /* OS major type */
out_uint16_le(s, 3); /* OS minor type */
out_uint16_le(s, 0x200); /* Protocol version */
out_uint16_le(s, 0); /* pad */
out_uint16_le(s, 0); /* Compression types */
/* NO_BITMAP_COMPRESSION_HDR 0x0400
FASTPATH_OUTPUT_SUPPORTED 0x0001 */
if (self->client_info.use_fast_path & 1)
{
out_uint16_le(s, 0x401);
}
else
{
out_uint16_le(s, 0x400);
}
out_uint16_le(s, 0); /* Update capability */
out_uint16_le(s, 0); /* Remote unshare capability */
out_uint16_le(s, 0); /* Compression level */
out_uint16_le(s, 0); /* Pad */
/* Output bitmap capability set */
caps_count++;
out_uint16_le(s, RDP_CAPSET_BITMAP); /* 2 */
out_uint16_le(s, RDP_CAPLEN_BITMAP); /* 28(0x1c) */
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.width); /* width */
out_uint16_le(s, self->client_info.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 */
/* Output font capability set */
caps_count++;
out_uint16_le(s, RDP_CAPSET_FONT); /* 14 */
out_uint16_le(s, RDP_CAPLEN_FONT); /* 4 */
/* Output order capability set */
caps_count++;
out_uint16_le(s, RDP_CAPSET_ORDER); /* 3 */
out_uint16_le(s, RDP_CAPLEN_ORDER); /* 88(0x58) */
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); /* ? */
/* Output bmpcodecs capability set */
caps_count++;
out_uint16_le(s, RDP_CAPSET_BMPCODECS);
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);
out_uint8(s, 0x01); /* fAllowDynamicFidelity */
out_uint8(s, 0x01); /* fAllowSubsampling */
out_uint8(s, 0x03); /* colorLossLevel */
/* remotefx */
codec_caps_count++;
out_uint8a(s, XR_CODEC_GUID_REMOTEFX, 16);
out_uint8(s, 0); /* codec id, client sets */
out_uint16_le(s, 256);
out_uint8s(s, 256);
/* 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); /* ext length */
out_uint8(s, 75);
/* calculate and set size and count */
codec_caps_size = (int)(s->p - codec_caps_size_ptr);
codec_caps_size += 2; /* 2 bytes for RDP_CAPSET_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, RDP_CAPSET_COLCACHE);
out_uint16_le(s, RDP_CAPLEN_COLCACHE);
out_uint16_le(s, 6); /* cache size */
out_uint16_le(s, 0); /* pad */
/* Output pointer capability set */
caps_count++;
out_uint16_le(s, RDP_CAPSET_POINTER);
out_uint16_le(s, RDP_CAPLEN_POINTER);
out_uint16_le(s, 1); /* Colour pointer */
out_uint16_le(s, 0x19); /* Cache size */
out_uint16_le(s, 0x19); /* Cache size */
/* Output input capability set */
caps_count++;
out_uint16_le(s, RDP_CAPSET_INPUT); /* 13(0xd) */
out_uint16_le(s, RDP_CAPLEN_INPUT); /* 88(0x58) */
/* INPUT_FLAG_SCANCODES 0x0001
INPUT_FLAG_MOUSEX 0x0004
INPUT_FLAG_FASTPATH_INPUT 0x0008
INPUT_FLAG_FASTPATH_INPUT2 0x0020 */
flags = 0x0001 | 0x0004;
if (self->client_info.use_fast_path & 2)
flags |= 0x0008 | 0x0020;
out_uint16_le(s, flags);
out_uint8s(s, 82);
/* Remote Programs Capability Set */
caps_count++;
out_uint16_le(s, 0x0017); /* CAPSETTYPE_RAIL */
out_uint16_le(s, 8);
out_uint32_le(s, 3); /* TS_RAIL_LEVEL_SUPPORTED
TS_RAIL_LEVEL_DOCKED_LANGBAR_SUPPORTED */
/* Window List Capability Set */
caps_count++;
out_uint16_le(s, 0x0018); /* CAPSETTYPE_WINDOW */
out_uint16_le(s, 11);
out_uint32_le(s, 2); /* TS_WINDOW_LEVEL_SUPPORTED_EX */
out_uint8(s, 3); /* NumIconCaches */
out_uint16_le(s, 12); /* NumIconCacheEntries */
/* 6 - bitmap cache v3 codecid */
caps_count++;
out_uint16_le(s, 0x0006);
out_uint16_le(s, 5);
out_uint8(s, 0); /* client sets */
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;
if (xrdp_rdp_send(self, s, RDP_PDU_DEMAND_ACTIVE) != 0)
{
free_stream(s);
return 1;
}
free_stream(s);
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_process_capset_general(struct xrdp_rdp *self, struct stream *s,
int len)
{
int i;
if (len < 10 + 2)
{
g_writeln("xrdp_process_capset_general: error");
return 1;
}
in_uint8s(s, 10);
in_uint16_le(s, i);
/* use_compact_packets is pretty much 'use rdp5' */
self->client_info.use_compact_packets = (i != 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;
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_process_capset_order(struct xrdp_rdp *self, struct stream *s,
int len)
{
int i;
char order_caps[32];
int ex_flags;
int cap_flags;
DEBUG(("order capabilities"));
if (len < 20 + 2 + 2 + 2 + 2 + 2 + 2 + 32 + 2 + 2 + 4 + 4 + 4 + 4)
{
g_writeln("xrdp_process_capset_order: error");
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);
DEBUG(("dest blt-0 %d", order_caps[0]));
DEBUG(("pat blt-1 %d", order_caps[1]));
DEBUG(("screen blt-2 %d", order_caps[2]));
DEBUG(("memblt-3-13 %d %d", order_caps[3], order_caps[13]));
DEBUG(("triblt-4-14 %d %d", order_caps[4], order_caps[14]));
DEBUG(("line-8 %d", order_caps[8]));
DEBUG(("line-9 %d", order_caps[9]));
DEBUG(("rect-10 %d", order_caps[10]));
DEBUG(("desksave-11 %d", order_caps[11]));
DEBUG(("polygon-20 %d", order_caps[20]));
DEBUG(("polygon2-21 %d", order_caps[21]));
DEBUG(("polyline-22 %d", order_caps[22]));
DEBUG(("ellipse-25 %d", order_caps[25]));
DEBUG(("ellipse2-26 %d", order_caps[26]));
DEBUG(("text2-27 %d", order_caps[27]));
DEBUG(("order_caps dump"));
#if defined(XRDP_DEBUG)
g_hexdump(order_caps, 32);
#endif
in_uint8s(s, 2); /* Text capability flags */
/* read extended order support flags */
in_uint16_le(s, ex_flags); /* 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)
{
g_writeln("xrdp_process_capset_order: 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;
DEBUG(("desktop cache size %d", i));
in_uint8s(s, 4); /* Unknown */
in_uint8s(s, 4); /* Unknown */
return 0;
}
/*****************************************************************************/
/* get the bitmap cache size */
static int APP_CC
xrdp_process_capset_bmpcache(struct xrdp_rdp *self, struct stream *s,
int len)
{
int i;
if (len < 24 + 2 + 2 + 2 + 2 + 2 + 2)
{
g_writeln("xrdp_process_capset_bmpcache: error");
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);
/* caceh 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);
DEBUG(("cache1 entries %d size %d", self->client_info.cache1_entries,
self->client_info.cache1_size));
DEBUG(("cache2 entries %d size %d", self->client_info.cache2_entries,
self->client_info.cache2_size));
DEBUG(("cache3 entries %d size %d", self->client_info.cache3_entries,
self->client_info.cache3_size));
return 0;
}
/*****************************************************************************/
/* get the bitmap cache size */
static int APP_CC
xrdp_process_capset_bmpcache2(struct xrdp_rdp *self, struct stream *s,
int len)
{
int Bpp = 0;
int i = 0;
if (len < 2 + 2 + 4 + 4 + 4)
{
g_writeln("xrdp_process_capset_bmpcache2: error");
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;
DEBUG(("cache1 entries %d size %d", self->client_info.cache1_entries,
self->client_info.cache1_size));
DEBUG(("cache2 entries %d size %d", self->client_info.cache2_entries,
self->client_info.cache2_size));
DEBUG(("cache3 entries %d size %d", self->client_info.cache3_entries,
self->client_info.cache3_size));
return 0;
}
/*****************************************************************************/
static int
xrdp_process_capset_cache_v3_codec_id(struct xrdp_rdp *self, struct stream *s,
int len)
{
int codec_id;
if (len < 1)
{
g_writeln("xrdp_process_capset_cache_v3_codec_id: error");
return 1;
}
in_uint8(s, codec_id);
g_writeln("xrdp_process_capset_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 APP_CC
xrdp_process_capset_pointercache(struct xrdp_rdp *self, struct stream *s,
int len)
{
int i;
int colorPointerFlag;
int no_new_cursor;
if (len < 2 + 2 + 2)
{
g_writeln("xrdp_process_capset_pointercache: 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)
{
g_writeln("xrdp_process_capset_pointercache: client supports "
"new(color) cursor");
in_uint16_le(s, i);
i = MIN(i, 32);
self->client_info.pointer_cache_entries = i;
}
else
{
g_writeln("xrdp_process_capset_pointercache: client does not support "
"new(color) cursor");
}
if (no_new_cursor)
{
g_writeln("xrdp_process_capset_pointercache: new(color) cursor is "
"disabled by config");
self->client_info.pointer_flags = 0;
}
return 0;
}
/*****************************************************************************/
/* get the type of client brush cache */
static int APP_CC
xrdp_process_capset_brushcache(struct xrdp_rdp *self, struct stream *s,
int len)
{
int code;
if (len < 4)
{
g_writeln("xrdp_process_capset_brushcache: error");
return 1;
}
in_uint32_le(s, code);
self->client_info.brush_cache_code = code;
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_process_offscreen_bmpcache(struct xrdp_rdp *self, struct stream *s,
int len)
{
int i32;
if (len < 4 + 2 + 2)
{
g_writeln("xrdp_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;
g_writeln("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;
}
/*****************************************************************************/
static int APP_CC
xrdp_process_capset_rail(struct xrdp_rdp *self, struct stream *s, int len)
{
int i32;
if (len < 4)
{
g_writeln("xrdp_process_capset_rail: error");
return 1;
}
in_uint32_le(s, i32);
self->client_info.rail_support_level = i32;
g_writeln("xrdp_process_capset_rail: rail_support_level %d",
self->client_info.rail_support_level);
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_process_capset_window(struct xrdp_rdp *self, struct stream *s, int len)
{
int i32;
if (len < 4 + 1 + 2)
{
g_writeln("xrdp_process_capset_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;
g_writeln("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 APP_CC
xrdp_process_capset_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;
if (len < 1)
{
g_writeln("xrdp_process_capset_codecs: error");
return 1;
}
in_uint8(s, codec_count);
len--;
for (index = 0; index < codec_count; index++)
{
codec_guid = s->p;
if (len < 16 + 1 + 2)
{
g_writeln("xrdp_process_capset_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)
{
g_writeln("xrdp_process_capset_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)
{
g_writeln("xrdp_process_capset_codecs: nscodec codec id %d prop len %d",
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)
{
g_writeln("xrdp_process_capset_codecs: rfx codec id %d prop len %d",
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)
{
g_writeln("xrdp_process_capset_codecs: jpeg codec id %d prop len %d",
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;
g_writeln(" jpeg quality %d", self->client_info.jpeg_prop[0]);
}
else
{
g_writeln("xrdp_process_capset_codecs: unknown codec id %d", codec_id);
}
s->p = next_guid;
}
return 0;
}
/*****************************************************************************/
int APP_CC
xrdp_rdp_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;
DEBUG(("in xrdp_rdp_process_confirm_active"));
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);
in_uint8s(s, source_len);
in_uint16_le(s, num_caps);
in_uint8s(s, 2); /* pad */
for (index = 0; index < num_caps; index++)
{
p = s->p;
if (!s_check_rem(s, 4))
{
g_writeln("xrdp_rdp_process_confirm_active: error 1");
return 1;
}
in_uint16_le(s, type);
in_uint16_le(s, len);
if ((len < 4) || !s_check_rem(s, len - 4))
{
g_writeln("xrdp_rdp_process_confirm_active: error len %d", len, s->end - s->p);
return 1;
}
len -= 4;
switch (type)
{
case RDP_CAPSET_GENERAL: /* 1 */
DEBUG(("RDP_CAPSET_GENERAL"));
xrdp_process_capset_general(self, s, len);
break;
case RDP_CAPSET_BITMAP: /* 2 */
DEBUG(("RDP_CAPSET_BITMAP"));
break;
case RDP_CAPSET_ORDER: /* 3 */
DEBUG(("RDP_CAPSET_ORDER"));
xrdp_process_capset_order(self, s, len);
break;
case RDP_CAPSET_BMPCACHE: /* 4 */
DEBUG(("RDP_CAPSET_BMPCACHE"));
xrdp_process_capset_bmpcache(self, s, len);
break;
case RDP_CAPSET_CONTROL: /* 5 */
DEBUG(("RDP_CAPSET_CONTROL"));
break;
case 6:
xrdp_process_capset_cache_v3_codec_id(self, s, len);
break;
case RDP_CAPSET_ACTIVATE: /* 7 */
DEBUG(("RDP_CAPSET_ACTIVATE"));
break;
case RDP_CAPSET_POINTER: /* 8 */
DEBUG(("RDP_CAPSET_POINTER"));
xrdp_process_capset_pointercache(self, s, len);
break;
case RDP_CAPSET_SHARE: /* 9 */
DEBUG(("RDP_CAPSET_SHARE"));
break;
case RDP_CAPSET_COLCACHE: /* 10 */
DEBUG(("RDP_CAPSET_COLCACHE"));
break;
case 12: /* 12 */
DEBUG(("--12"));
break;
case 13: /* 13 */
DEBUG(("--13"));
break;
case 14: /* 14 */
DEBUG(("--14"));
break;
case RDP_CAPSET_BRUSHCACHE: /* 15 */
xrdp_process_capset_brushcache(self, s, len);
break;
case 16: /* 16 */
DEBUG(("--16"));
break;
case 17: /* 17 */
DEBUG(("CAPSET_TYPE_OFFSCREEN_CACHE"));
xrdp_process_offscreen_bmpcache(self, s, len);
break;
case RDP_CAPSET_BMPCACHE2: /* 19 */
DEBUG(("RDP_CAPSET_BMPCACHE2"));
xrdp_process_capset_bmpcache2(self, s, len);
break;
case 20: /* 20 */
DEBUG(("--20"));
break;
case 21: /* 21 */
DEBUG(("--21"));
break;
case 22: /* 22 */
DEBUG(("--22"));
break;
case 0x0017: /* 23 CAPSETTYPE_RAIL */
xrdp_process_capset_rail(self, s, len);
break;
case 0x0018: /* 24 CAPSETTYPE_WINDOW */
xrdp_process_capset_window(self, s, len);
break;
case 26: /* 26 */
DEBUG(("--26"));
break;
case RDP_CAPSET_BMPCODECS: /* 0x1d(29) */
xrdp_process_capset_codecs(self, s, len);
break;
default:
g_writeln("unknown in xrdp_rdp_process_confirm_active %d", type);
break;
}
s->p = p + len + 4;
}
DEBUG(("out xrdp_rdp_process_confirm_active"));
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_rdp_process_data_pointer(struct xrdp_rdp *self, struct stream *s)
{
return 0;
}
/*****************************************************************************/
/* RDP_DATA_PDU_INPUT */
static int APP_CC
xrdp_rdp_process_data_input(struct xrdp_rdp *self, struct stream *s)
{
int num_events;
int index;
int msg_type;
int device_flags;
int param1;
int param2;
int time;
if (!s_check_rem(s, 4))
{
return 1;
}
in_uint16_le(s, num_events);
in_uint8s(s, 2); /* pad */
DEBUG(("in xrdp_rdp_process_data_input %d events", num_events));
for (index = 0; index < num_events; index++)
{
if (!s_check_rem(s, 12))
{
return 1;
}
in_uint32_le(s, time);
in_uint16_le(s, msg_type);
in_uint16_le(s, device_flags);
in_sint16_le(s, param1);
in_sint16_le(s, param2);
DEBUG(("xrdp_rdp_process_data_input event %4.4x flags %4.4x param1 %d "
"param2 %d time %d", msg_type, device_flags, param1, param2, time));
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_type, param1, param2,
device_flags, time);
}
}
DEBUG(("out xrdp_rdp_process_data_input"));
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_rdp_send_synchronise(struct xrdp_rdp *self)
{
struct stream *s;
make_stream(s);
init_stream(s, 8192);
if (xrdp_rdp_init_data(self, s) != 0)
{
free_stream(s);
return 1;
}
out_uint16_le(s, 1);
out_uint16_le(s, 1002);
s_mark_end(s);
if (xrdp_rdp_send_data(self, s, RDP_DATA_PDU_SYNCHRONISE) != 0)
{
free_stream(s);
return 1;
}
free_stream(s);
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_rdp_send_control(struct xrdp_rdp *self, int action)
{
struct stream *s;
make_stream(s);
init_stream(s, 8192);
if (xrdp_rdp_init_data(self, s) != 0)
{
free_stream(s);
return 1;
}
out_uint16_le(s, action);
out_uint16_le(s, 0); /* userid */
out_uint32_le(s, 1002); /* control id */
s_mark_end(s);
if (xrdp_rdp_send_data(self, s, RDP_DATA_PDU_CONTROL) != 0)
{
free_stream(s);
return 1;
}
free_stream(s);
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_rdp_process_data_control(struct xrdp_rdp *self, struct stream *s)
{
int action;
DEBUG(("xrdp_rdp_process_data_control"));
in_uint16_le(s, action);
in_uint8s(s, 2); /* user id */
in_uint8s(s, 4); /* control id */
if (action == RDP_CTL_REQUEST_CONTROL)
{
DEBUG(("xrdp_rdp_process_data_control got RDP_CTL_REQUEST_CONTROL"));
DEBUG(("xrdp_rdp_process_data_control calling xrdp_rdp_send_synchronise"));
xrdp_rdp_send_synchronise(self);
DEBUG(("xrdp_rdp_process_data_control sending RDP_CTL_COOPERATE"));
xrdp_rdp_send_control(self, RDP_CTL_COOPERATE);
DEBUG(("xrdp_rdp_process_data_control sending RDP_CTL_GRANT_CONTROL"));
xrdp_rdp_send_control(self, RDP_CTL_GRANT_CONTROL);
}
else
{
DEBUG(("xrdp_rdp_process_data_control unknown action"));
}
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_rdp_process_data_sync(struct xrdp_rdp *self)
{
DEBUG(("xrdp_rdp_process_data_sync"));
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_rdp_process_screen_update(struct xrdp_rdp *self, struct stream *s)
{
int op;
int left;
int top;
int right;
int bottom;
int cx;
int cy;
in_uint32_le(s, op);
in_uint16_le(s, left);
in_uint16_le(s, top);
in_uint16_le(s, right);
in_uint16_le(s, bottom);
cx = (right - left) + 1;
cy = (bottom - top) + 1;
if (self->session->callback != 0)
{
self->session->callback(self->session->id, 0x4444, left, top, cx, cy);
}
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_rdp_send_unknown1(struct xrdp_rdp *self)
{
struct stream *s;
make_stream(s);
init_stream(s, 8192);
if (xrdp_rdp_init_data(self, s) != 0)
{
free_stream(s);
return 1;
}
out_uint8a(s, g_unknown1, 172);
s_mark_end(s);
if (xrdp_rdp_send_data(self, s, 0x28) != 0)
{
free_stream(s);
return 1;
}
free_stream(s);
return 0;
}
/*****************************************************************************/
static int APP_CC
xrdp_rdp_process_data_font(struct xrdp_rdp *self, struct stream *s)
{
int seq;
DEBUG(("in xrdp_rdp_process_data_font"));
in_uint8s(s, 2); /* num of fonts */
in_uint8s(s, 2); /* unknown */
in_uint16_le(s, seq);
/* 419 client sends Seq 1, then 2 */
/* 2600 clients sends only Seq 3 */
if (seq == 2 || seq == 3) /* after second font message, we are up and */
{
/* running */
DEBUG(("sending unknown1"));
xrdp_rdp_send_unknown1(self);
self->session->up_and_running = 1;
DEBUG(("up_and_running set"));
xrdp_rdp_send_data_update_sync(self);
}
DEBUG(("out xrdp_rdp_process_data_font"));
return 0;
}
/*****************************************************************************/
/* sent 37 pdu */
static int APP_CC
xrdp_rdp_send_disconnect_query_response(struct xrdp_rdp *self)
{
struct stream *s;
make_stream(s);
init_stream(s, 8192);
if (xrdp_rdp_init_data(self, s) != 0)
{
free_stream(s);
return 1;
}
s_mark_end(s);
if (xrdp_rdp_send_data(self, s, 37) != 0)
{
free_stream(s);
return 1;
}
free_stream(s);
return 0;
}
#if 0 /* not used */
/*****************************************************************************/
/* sent RDP_DATA_PDU_DISCONNECT 47 pdu */
static int APP_CC
xrdp_rdp_send_disconnect_reason(struct xrdp_rdp *self, int reason)
{
struct stream *s;
make_stream(s);
init_stream(s, 8192);
if (xrdp_rdp_init_data(self, s) != 0)
{
free_stream(s);
return 1;
}
out_uint32_le(s, reason);
s_mark_end(s);
if (xrdp_rdp_send_data(self, s, RDP_DATA_PDU_DISCONNECT) != 0)
{
free_stream(s);
return 1;
}
free_stream(s);
return 0;
}
#endif
/*****************************************************************************/
/* RDP_PDU_DATA */
int APP_CC
xrdp_rdp_process_data(struct xrdp_rdp *self, struct stream *s)
{
int len;
int data_type;
int ctype;
int clen;
in_uint8s(s, 6);
in_uint16_le(s, len);
in_uint8(s, data_type);
in_uint8(s, ctype);
in_uint16_le(s, clen);
DEBUG(("xrdp_rdp_process_data code %d", data_type));
switch (data_type)
{
case RDP_DATA_PDU_POINTER: /* 27(0x1b) */
xrdp_rdp_process_data_pointer(self, s);
break;
case RDP_DATA_PDU_INPUT: /* 28(0x1c) */
xrdp_rdp_process_data_input(self, s);
break;
case RDP_DATA_PDU_CONTROL: /* 20(0x14) */
xrdp_rdp_process_data_control(self, s);
break;
case RDP_DATA_PDU_SYNCHRONISE: /* 31(0x1f) */
xrdp_rdp_process_data_sync(self);
break;
case 33: /* 33(0x21) ?? Invalidate an area I think */
xrdp_rdp_process_screen_update(self, s);
break;
case 35: /* 35(0x23) */
/* 35 ?? this comes when minimuzing a full screen mstsc.exe 2600 */
/* I think this is saying the client no longer wants screen */
/* updates and it will issue a 33 above to catch up */
/* so minimized apps don't take bandwidth */
break;
case 36: /* 36(0x24) ?? disconnect query? */
/* when this message comes, send a 37 back so the client */
/* is sure the connection is alive and it can ask if user */
/* really wants to disconnect */
xrdp_rdp_send_disconnect_query_response(self); /* send a 37 back */
break;
case RDP_DATA_PDU_FONT2: /* 39(0x27) */
xrdp_rdp_process_data_font(self, s);
break;
default:
g_writeln("unknown in xrdp_rdp_process_data %d", data_type);
break;
}
return 0;
}
/*****************************************************************************/
int APP_CC
xrdp_rdp_disconnect(struct xrdp_rdp *self)
{
int rv;
DEBUG(("in xrdp_rdp_disconnect"));
rv = xrdp_sec_disconnect(self->sec_layer);
DEBUG(("out xrdp_rdp_disconnect"));
return rv;
}
/*****************************************************************************/
int APP_CC
xrdp_rdp_send_deactive(struct xrdp_rdp *self)
{
struct stream *s;
DEBUG(("in xrdp_rdp_send_deactive"));
make_stream(s);
init_stream(s, 8192);
if (xrdp_rdp_init(self, s) != 0)
{
free_stream(s);
DEBUG(("out xrdp_rdp_send_deactive error"));
return 1;
}
s_mark_end(s);
if (xrdp_rdp_send(self, s, RDP_PDU_DEACTIVATE) != 0)
{
free_stream(s);
DEBUG(("out xrdp_rdp_send_deactive error"));
return 1;
}
free_stream(s);
DEBUG(("out xrdp_rdp_send_deactive"));
return 0;
}
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