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rdp.c
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/* -*- c-basic-offset: 8 -*-
rdesktop: A Remote Desktop Protocol client.
Protocol services - RDP layer
Copyright (C) Matthew Chapman <matthewc.unsw.edu.au> 1999-2008
Copyright 2003-2011 Peter Astrand <astrand@cendio.se> for Cendio AB
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <time.h>
#ifndef _WIN32
#include <errno.h>
#include <unistd.h>
#endif
#include "rdesktop.h"
#include "ssl.h"
#ifdef HAVE_ICONV
#ifdef HAVE_ICONV_H
#include <iconv.h>
#endif
#ifndef ICONV_CONST
#define ICONV_CONST ""
#endif
#endif
extern uint16 g_mcs_userid;
extern char *g_username;
extern char g_codepage[16];
extern RD_BOOL g_bitmap_compression;
extern RD_BOOL g_orders;
extern RD_BOOL g_encryption;
extern RD_BOOL g_desktop_save;
extern RD_BOOL g_polygon_ellipse_orders;
extern RDP_VERSION g_rdp_version;
extern uint16 g_server_rdp_version;
extern uint32 g_rdp5_performanceflags;
extern int g_server_depth;
extern int g_width;
extern int g_height;
extern RD_BOOL g_bitmap_cache;
extern RD_BOOL g_bitmap_cache_persist_enable;
extern RD_BOOL g_numlock_sync;
extern RD_BOOL g_pending_resize;
extern RD_BOOL g_network_error;
uint8 *g_next_packet;
uint32 g_rdp_shareid;
extern RDPCOMP g_mppc_dict;
/* Session Directory support */
extern RD_BOOL g_redirect;
extern char g_redirect_server[64];
extern char g_redirect_domain[16];
extern char g_redirect_password[64];
extern char *g_redirect_username;
extern char g_redirect_cookie[128];
extern uint32 g_redirect_flags;
/* END Session Directory support */
extern uint32 g_reconnect_logonid;
extern char g_reconnect_random[16];
extern time_t g_reconnect_random_ts;
extern RD_BOOL g_has_reconnect_random;
extern uint8 g_client_random[SEC_RANDOM_SIZE];
#if WITH_DEBUG
static uint32 g_packetno;
#endif
#ifdef HAVE_ICONV
static RD_BOOL g_iconv_works = True;
#endif
/* Receive an RDP packet */
static STREAM
rdp_recv(uint8 * type)
{
static STREAM rdp_s;
uint16 length, pdu_type;
uint8 rdpver;
if ((rdp_s == NULL) || (g_next_packet >= rdp_s->end) || (g_next_packet == NULL))
{
rdp_s = sec_recv(&rdpver);
if (rdp_s == NULL)
return NULL;
if (rdpver == 0xff)
{
g_next_packet = rdp_s->end;
*type = 0;
return rdp_s;
}
else if (rdpver != 3)
{
/* rdp5_process should move g_next_packet ok */
rdp5_process(rdp_s);
*type = 0;
return rdp_s;
}
g_next_packet = rdp_s->p;
}
else
{
rdp_s->p = g_next_packet;
}
in_uint16_le(rdp_s, length);
/* 32k packets are really 8, keepalive fix */
if (length == 0x8000)
{
g_next_packet += 8;
*type = 0;
return rdp_s;
}
in_uint16_le(rdp_s, pdu_type);
in_uint8s(rdp_s, 2); /* userid */
*type = pdu_type & 0xf;
#if WITH_DEBUG
DEBUG(("RDP packet #%d, (type %x)\n", ++g_packetno, *type));
hexdump(g_next_packet, length);
#endif /* */
g_next_packet += length;
return rdp_s;
}
/* Initialise an RDP data packet */
static STREAM
rdp_init_data(int maxlen)
{
STREAM s;
s = sec_init(g_encryption ? SEC_ENCRYPT : 0, maxlen + 18);
s_push_layer(s, rdp_hdr, 18);
return s;
}
/* Send an RDP data packet */
static void
rdp_send_data(STREAM s, uint8 data_pdu_type)
{
uint16 length;
s_pop_layer(s, rdp_hdr);
length = s->end - s->p;
out_uint16_le(s, length);
out_uint16_le(s, (RDP_PDU_DATA | 0x10));
out_uint16_le(s, (g_mcs_userid + 1001));
out_uint32_le(s, g_rdp_shareid);
out_uint8(s, 0); /* pad */
out_uint8(s, 1); /* streamid */
out_uint16_le(s, (length - 14));
out_uint8(s, data_pdu_type);
out_uint8(s, 0); /* compress_type */
out_uint16(s, 0); /* compress_len */
sec_send(s, g_encryption ? SEC_ENCRYPT : 0);
}
/* Output a string in Unicode */
void
rdp_out_unistr(STREAM s, char *string, int len)
{
#ifdef HAVE_ICONV
size_t ibl = strlen(string), obl = len + 2;
static iconv_t iconv_h = (iconv_t) - 1;
char *pin = string, *pout = (char *) s->p;
memset(pout, 0, len + 4);
if (g_iconv_works)
{
if (iconv_h == (iconv_t) - 1)
{
size_t i = 1, o = 4;
if ((iconv_h = iconv_open(WINDOWS_CODEPAGE, g_codepage)) == (iconv_t) - 1)
{
warning("rdp_out_unistr: iconv_open[%s -> %s] fail %p\n",
g_codepage, WINDOWS_CODEPAGE, iconv_h);
g_iconv_works = False;
rdp_out_unistr(s, string, len);
return;
}
if (iconv(iconv_h, (ICONV_CONST char **) &pin, &i, &pout, &o) ==
(size_t) - 1)
{
iconv_close(iconv_h);
iconv_h = (iconv_t) - 1;
warning("rdp_out_unistr: iconv(1) fail, errno %d\n", errno);
g_iconv_works = False;
rdp_out_unistr(s, string, len);
return;
}
pin = string;
pout = (char *) s->p;
}
if (iconv(iconv_h, (ICONV_CONST char **) &pin, &ibl, &pout, &obl) == (size_t) - 1)
{
iconv_close(iconv_h);
iconv_h = (iconv_t) - 1;
warning("rdp_out_unistr: iconv(2) fail, errno %d\n", errno);
g_iconv_works = False;
rdp_out_unistr(s, string, len);
return;
}
s->p += len + 2;
}
else
#endif
{
int i = 0, j = 0;
len += 2;
while (i < len)
{
s->p[i++] = string[j++];
s->p[i++] = 0;
}
s->p += len;
}
}
/* Input a string in Unicode
*
* Returns str_len of string
*/
int
rdp_in_unistr(STREAM s, char *string, int str_size, int in_len)
{
#ifdef HAVE_ICONV
size_t ibl = in_len, obl = str_size - 1;
char *pin = (char *) s->p, *pout = string;
static iconv_t iconv_h = (iconv_t) - 1;
if (g_iconv_works)
{
if (iconv_h == (iconv_t) - 1)
{
if ((iconv_h = iconv_open(g_codepage, WINDOWS_CODEPAGE)) == (iconv_t) - 1)
{
warning("rdp_in_unistr: iconv_open[%s -> %s] fail %p\n",
WINDOWS_CODEPAGE, g_codepage, iconv_h);
g_iconv_works = False;
return rdp_in_unistr(s, string, str_size, in_len);
}
}
if (iconv(iconv_h, (ICONV_CONST char **) &pin, &ibl, &pout, &obl) == (size_t) - 1)
{
if (errno == E2BIG)
{
warning("server sent an unexpectedly long string, truncating\n");
}
else
{
iconv_close(iconv_h);
iconv_h = (iconv_t) - 1;
warning("rdp_in_unistr: iconv fail, errno %d\n", errno);
g_iconv_works = False;
return rdp_in_unistr(s, string, str_size, in_len);
}
}
/* we must update the location of the current STREAM for future reads of s->p */
s->p += in_len;
*pout = 0;
return pout - string;
}
else
#endif
{
int i = 0;
int len = in_len / 2;
int rem = 0;
if (len > str_size - 1)
{
warning("server sent an unexpectedly long string, truncating\n");
len = str_size - 1;
rem = in_len - 2 * len;
}
while (i < len)
{
in_uint8a(s, &string[i++], 1);
in_uint8s(s, 1);
}
in_uint8s(s, rem);
string[len] = 0;
return len;
}
}
/* Parse a logon info packet */
static void
rdp_send_logon_info(uint32 flags, char *domain, char *user,
char *password, char *program, char *directory)
{
char *ipaddr = tcp_get_address();
int len_domain = 2 * strlen(domain);
int len_user = 2 * strlen(user);
int len_password = 2 * strlen(password);
int len_program = 2 * strlen(program);
int len_directory = 2 * strlen(directory);
int len_ip = 2 * strlen(ipaddr);
int len_dll = 2 * strlen("C:\\WINNT\\System32\\mstscax.dll");
int packetlen = 0;
uint32 sec_flags = g_encryption ? (SEC_LOGON_INFO | SEC_ENCRYPT) : SEC_LOGON_INFO;
STREAM s;
time_t t = time(NULL);
time_t tzone;
uint8 security_verifier[16];
if (g_rdp_version == RDP_V4 || 1 == g_server_rdp_version)
{
DEBUG_RDP5(("Sending RDP4-style Logon packet\n"));
s = sec_init(sec_flags, 18 + len_domain + len_user + len_password
+ len_program + len_directory + 10);
out_uint32(s, 0);
out_uint32_le(s, flags);
out_uint16_le(s, len_domain);
out_uint16_le(s, len_user);
out_uint16_le(s, len_password);
out_uint16_le(s, len_program);
out_uint16_le(s, len_directory);
rdp_out_unistr(s, domain, len_domain);
rdp_out_unistr(s, user, len_user);
rdp_out_unistr(s, password, len_password);
rdp_out_unistr(s, program, len_program);
rdp_out_unistr(s, directory, len_directory);
}
else
{
flags |= RDP_LOGON_BLOB;
DEBUG_RDP5(("Sending RDP5-style Logon packet\n"));
packetlen = 4 + /* Unknown uint32 */
4 + /* flags */
2 + /* len_domain */
2 + /* len_user */
(flags & RDP_LOGON_AUTO ? 2 : 0) + /* len_password */
(flags & RDP_LOGON_BLOB ? 2 : 0) + /* Length of BLOB */
2 + /* len_program */
2 + /* len_directory */
(0 < len_domain ? len_domain : 2) + /* domain */
len_user + (flags & RDP_LOGON_AUTO ? len_password : 0) + 0 + /* We have no 512 byte BLOB. Perhaps we must? */
(flags & RDP_LOGON_BLOB && !(flags & RDP_LOGON_AUTO) ? 2 : 0) + /* After the BLOB is a unknown int16. If there is a BLOB, that is. */
(0 < len_program ? len_program : 2) + (0 < len_directory ? len_directory : 2) + 2 + /* Unknown (2) */
2 + /* Client ip length */
len_ip + /* Client ip */
2 + /* DLL string length */
len_dll + /* DLL string */
2 + /* Unknown */
2 + /* Unknown */
64 + /* Time zone #0 */
2 + /* Unknown */
64 + /* Time zone #1 */
32; /* Unknown */
s = sec_init(sec_flags, packetlen);
DEBUG_RDP5(("Called sec_init with packetlen %d\n", packetlen));
out_uint32(s, 0); /* Unknown */
out_uint32_le(s, flags);
out_uint16_le(s, len_domain);
out_uint16_le(s, len_user);
if (flags & RDP_LOGON_AUTO)
{
out_uint16_le(s, len_password);
}
if (flags & RDP_LOGON_BLOB && !(flags & RDP_LOGON_AUTO))
{
out_uint16_le(s, 0);
}
out_uint16_le(s, len_program);
out_uint16_le(s, len_directory);
if (0 < len_domain)
rdp_out_unistr(s, domain, len_domain);
else
out_uint16_le(s, 0);
rdp_out_unistr(s, user, len_user);
if (flags & RDP_LOGON_AUTO)
{
rdp_out_unistr(s, password, len_password);
}
if (flags & RDP_LOGON_BLOB && !(flags & RDP_LOGON_AUTO))
{
out_uint16_le(s, 0);
}
if (0 < len_program)
{
rdp_out_unistr(s, program, len_program);
}
else
{
out_uint16_le(s, 0);
}
if (0 < len_directory)
{
rdp_out_unistr(s, directory, len_directory);
}
else
{
out_uint16_le(s, 0);
}
/* TS_EXTENDED_INFO_PACKET */
out_uint16_le(s, 2); /* clientAddressFamily = AF_INET */
out_uint16_le(s, len_ip + 2); /* cbClientAddress, Length of client ip */
rdp_out_unistr(s, ipaddr, len_ip); /* clientAddress */
out_uint16_le(s, len_dll + 2); /* cbClientDir */
rdp_out_unistr(s, "C:\\WINNT\\System32\\mstscax.dll", len_dll); /* clientDir */
/* TS_TIME_ZONE_INFORMATION */
tzone = (mktime(gmtime(&t)) - mktime(localtime(&t))) / 60;
out_uint32_le(s, tzone);
rdp_out_unistr(s, "GTB, normaltid", 2 * strlen("GTB, normaltid"));
out_uint8s(s, 62 - 2 * strlen("GTB, normaltid"));
out_uint32_le(s, 0x0a0000);
out_uint32_le(s, 0x050000);
out_uint32_le(s, 3);
out_uint32_le(s, 0);
out_uint32_le(s, 0);
rdp_out_unistr(s, "GTB, sommartid", 2 * strlen("GTB, sommartid"));
out_uint8s(s, 62 - 2 * strlen("GTB, sommartid"));
out_uint32_le(s, 0x30000);
out_uint32_le(s, 0x050000);
out_uint32_le(s, 2);
out_uint32(s, 0);
out_uint32_le(s, 0xffffffc4); /* DaylightBias */
/* Rest of TS_EXTENDED_INFO_PACKET */
out_uint32_le(s, 0xfffffffe); /* clientSessionId, consider changing to 0 */
out_uint32_le(s, g_rdp5_performanceflags);
/* Client Auto-Reconnect */
if (g_has_reconnect_random)
{
out_uint16_le(s, 28); /* cbAutoReconnectLen */
/* ARC_CS_PRIVATE_PACKET */
out_uint32_le(s, 28); /* cbLen */
out_uint32_le(s, 1); /* Version */
out_uint32_le(s, g_reconnect_logonid); /* LogonId */
rdssl_hmac_md5(g_reconnect_random, sizeof(g_reconnect_random),
g_client_random, SEC_RANDOM_SIZE, security_verifier);
out_uint8a(s, security_verifier, sizeof(security_verifier));
}
else
{
out_uint16_le(s, 0); /* cbAutoReconnectLen */
}
}
s_mark_end(s);
sec_send(s, sec_flags);
}
/* Send a control PDU */
static void
rdp_send_control(uint16 action)
{
STREAM s;
s = rdp_init_data(8);
out_uint16_le(s, action);
out_uint16(s, 0); /* userid */
out_uint32(s, 0); /* control id */
s_mark_end(s);
rdp_send_data(s, RDP_DATA_PDU_CONTROL);
}
/* Send a synchronisation PDU */
static void
rdp_send_synchronise(void)
{
STREAM s;
s = rdp_init_data(4);
out_uint16_le(s, 1); /* type */
out_uint16_le(s, 1002);
s_mark_end(s);
rdp_send_data(s, RDP_DATA_PDU_SYNCHRONISE);
}
/* Send a single input event */
void
rdp_send_input(uint32 time, uint16 message_type, uint16 device_flags, uint16 param1, uint16 param2)
{
STREAM s;
s = rdp_init_data(16);
out_uint16_le(s, 1); /* number of events */
out_uint16(s, 0); /* pad */
out_uint32_le(s, time);
out_uint16_le(s, message_type);
out_uint16_le(s, device_flags);
out_uint16_le(s, param1);
out_uint16_le(s, param2);
s_mark_end(s);
rdp_send_data(s, RDP_DATA_PDU_INPUT);
}
/* Send a client window information PDU */
void
rdp_send_client_window_status(int status)
{
STREAM s;
static int current_status = 1;
if (current_status == status)
return;
s = rdp_init_data(12);
out_uint32_le(s, status);
switch (status)
{
case 0: /* shut the server up */
break;
case 1: /* receive data again */
out_uint32_le(s, 0); /* unknown */
out_uint16_le(s, g_width);
out_uint16_le(s, g_height);
break;
}
s_mark_end(s);
rdp_send_data(s, RDP_DATA_PDU_CLIENT_WINDOW_STATUS);
current_status = status;
}
/* Send persistent bitmap cache enumeration PDU's */
static void
rdp_enum_bmpcache2(void)
{
STREAM s;
HASH_KEY keylist[BMPCACHE2_NUM_PSTCELLS];
uint32 num_keys, offset, count, flags;
offset = 0;
num_keys = pstcache_enumerate(2, keylist);
while (offset < num_keys)
{
count = MIN(num_keys - offset, 169);
s = rdp_init_data(24 + count * sizeof(HASH_KEY));
flags = 0;
if (offset == 0)
flags |= PDU_FLAG_FIRST;
if (num_keys - offset <= 169)
flags |= PDU_FLAG_LAST;
/* header */
out_uint32_le(s, 0);
out_uint16_le(s, count);
out_uint16_le(s, 0);
out_uint16_le(s, 0);
out_uint16_le(s, 0);
out_uint16_le(s, 0);
out_uint16_le(s, num_keys);
out_uint32_le(s, 0);
out_uint32_le(s, flags);
/* list */
out_uint8a(s, keylist[offset], count * sizeof(HASH_KEY));
s_mark_end(s);
rdp_send_data(s, 0x2b);
offset += 169;
}
}
/* Send an (empty) font information PDU */
static void
rdp_send_fonts(uint16 seq)
{
STREAM s;
s = rdp_init_data(8);
out_uint16(s, 0); /* number of fonts */
out_uint16_le(s, 0); /* pad? */
out_uint16_le(s, seq); /* unknown */
out_uint16_le(s, 0x32); /* entry size */
s_mark_end(s);
rdp_send_data(s, RDP_DATA_PDU_FONT2);
}
/* Output general capability set */
static void
rdp_out_general_caps(STREAM s)
{
out_uint16_le(s, RDP_CAPSET_GENERAL);
out_uint16_le(s, RDP_CAPLEN_GENERAL);
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(s, 0); /* Pad */
out_uint16(s, 0); /* Compression types */
out_uint16_le(s, (g_rdp_version >= RDP_V5) ? 0x40d : 0);
/* Pad, according to T.128. 0x40d seems to
trigger
the server to start sending RDP5 packets.
However, the value is 0x1d04 with W2KTSK and
NT4MS. Hmm.. Anyway, thankyou, Microsoft,
for sending such information in a padding
field.. */
out_uint16(s, 0); /* Update capability */
out_uint16(s, 0); /* Remote unshare capability */
out_uint16(s, 0); /* Compression level */
out_uint16(s, 0); /* Pad */
}
/* Output bitmap capability set */
static void
rdp_out_bitmap_caps(STREAM s)
{
out_uint16_le(s, RDP_CAPSET_BITMAP);
out_uint16_le(s, RDP_CAPLEN_BITMAP);
out_uint16_le(s, g_server_depth); /* Preferred colour depth */
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, 800); /* Desktop width */
out_uint16_le(s, 600); /* Desktop height */
out_uint16(s, 0); /* Pad */
out_uint16(s, 1); /* Allow resize */
out_uint16_le(s, g_bitmap_compression ? 1 : 0); /* Support compression */
out_uint16(s, 0); /* Unknown */
out_uint16_le(s, 1); /* Unknown */
out_uint16(s, 0); /* Pad */
}
/* Output order capability set */
static void
rdp_out_order_caps(STREAM s)
{
uint8 order_caps[32];
memset(order_caps, 0, 32);
order_caps[0] = 1; /* dest blt */
order_caps[1] = 1; /* pat blt */
order_caps[2] = 1; /* screen blt */
order_caps[3] = (g_bitmap_cache ? 1 : 0); /* memblt */
order_caps[4] = 0; /* triblt */
order_caps[8] = 1; /* line */
order_caps[9] = 1; /* line */
order_caps[10] = 1; /* rect */
order_caps[11] = (g_desktop_save ? 1 : 0); /* desksave */
order_caps[13] = 1; /* memblt */
order_caps[14] = 1; /* triblt */
order_caps[20] = (g_polygon_ellipse_orders ? 1 : 0); /* polygon */
order_caps[21] = (g_polygon_ellipse_orders ? 1 : 0); /* polygon2 */
order_caps[22] = 1; /* polyline */
order_caps[25] = (g_polygon_ellipse_orders ? 1 : 0); /* ellipse */
order_caps[26] = (g_polygon_ellipse_orders ? 1 : 0); /* ellipse2 */
order_caps[27] = 1; /* text2 */
out_uint16_le(s, RDP_CAPSET_ORDER);
out_uint16_le(s, RDP_CAPLEN_ORDER);
out_uint8s(s, 20); /* Terminal desc, pad */
out_uint16_le(s, 1); /* Cache X granularity */
out_uint16_le(s, 20); /* Cache Y granularity */
out_uint16(s, 0); /* Pad */
out_uint16_le(s, 1); /* Max order level */
out_uint16_le(s, 0x147); /* Number of fonts */
out_uint16_le(s, 0x2a); /* Capability flags */
out_uint8p(s, order_caps, 32); /* Orders supported */
out_uint16_le(s, 0x6a1); /* Text capability flags */
out_uint8s(s, 6); /* Pad */
out_uint32_le(s, g_desktop_save == False ? 0 : 0x38400); /* Desktop cache size */
out_uint32(s, 0); /* Unknown */
out_uint32_le(s, 0x4e4); /* Unknown */
}
/* Output bitmap cache capability set */
static void
rdp_out_bmpcache_caps(STREAM s)
{
int Bpp;
out_uint16_le(s, RDP_CAPSET_BMPCACHE);
out_uint16_le(s, RDP_CAPLEN_BMPCACHE);
Bpp = (g_server_depth + 7) / 8; /* bytes per pixel */
out_uint8s(s, 24); /* unused */
out_uint16_le(s, 0x258); /* entries */
out_uint16_le(s, 0x100 * Bpp); /* max cell size */
out_uint16_le(s, 0x12c); /* entries */
out_uint16_le(s, 0x400 * Bpp); /* max cell size */
out_uint16_le(s, 0x106); /* entries */
out_uint16_le(s, 0x1000 * Bpp); /* max cell size */
}
/* Output bitmap cache v2 capability set */
static void
rdp_out_bmpcache2_caps(STREAM s)
{
out_uint16_le(s, RDP_CAPSET_BMPCACHE2);
out_uint16_le(s, RDP_CAPLEN_BMPCACHE2);
out_uint16_le(s, g_bitmap_cache_persist_enable ? 2 : 0); /* version */
out_uint16_be(s, 3); /* number of caches in this set */
/* max cell size for cache 0 is 16x16, 1 = 32x32, 2 = 64x64, etc */
out_uint32_le(s, BMPCACHE2_C0_CELLS);
out_uint32_le(s, BMPCACHE2_C1_CELLS);
if (pstcache_init(2))
{
out_uint32_le(s, BMPCACHE2_NUM_PSTCELLS | BMPCACHE2_FLAG_PERSIST);
}
else
{
out_uint32_le(s, BMPCACHE2_C2_CELLS);
}
out_uint8s(s, 20); /* other bitmap caches not used */
}
/* Output control capability set */
static void
rdp_out_control_caps(STREAM s)
{
out_uint16_le(s, RDP_CAPSET_CONTROL);
out_uint16_le(s, RDP_CAPLEN_CONTROL);
out_uint16(s, 0); /* Control capabilities */
out_uint16(s, 0); /* Remote detach */
out_uint16_le(s, 2); /* Control interest */
out_uint16_le(s, 2); /* Detach interest */
}
/* Output activation capability set */
static void
rdp_out_activate_caps(STREAM s)
{
out_uint16_le(s, RDP_CAPSET_ACTIVATE);
out_uint16_le(s, RDP_CAPLEN_ACTIVATE);
out_uint16(s, 0); /* Help key */
out_uint16(s, 0); /* Help index key */
out_uint16(s, 0); /* Extended help key */
out_uint16(s, 0); /* Window activate */
}
/* Output pointer capability set */
static void
rdp_out_pointer_caps(STREAM s)
{
out_uint16_le(s, RDP_CAPSET_POINTER);
out_uint16_le(s, RDP_CAPLEN_POINTER);
out_uint16(s, 0); /* Colour pointer */
out_uint16_le(s, 20); /* Cache size */
}
/* Output new pointer capability set */
static void
rdp_out_newpointer_caps(STREAM s)
{
out_uint16_le(s, RDP_CAPSET_POINTER);
out_uint16_le(s, RDP_CAPLEN_NEWPOINTER);
out_uint16_le(s, 1); /* Colour pointer */
out_uint16_le(s, 20); /* Cache size */
out_uint16_le(s, 20); /* Cache size for new pointers */
}
/* Output share capability set */
static void
rdp_out_share_caps(STREAM s)
{
out_uint16_le(s, RDP_CAPSET_SHARE);
out_uint16_le(s, RDP_CAPLEN_SHARE);
out_uint16(s, 0); /* userid */
out_uint16(s, 0); /* pad */
}
/* Output colour cache capability set */
static void
rdp_out_colcache_caps(STREAM s)
{
out_uint16_le(s, RDP_CAPSET_COLCACHE);
out_uint16_le(s, RDP_CAPLEN_COLCACHE);
out_uint16_le(s, 6); /* cache size */
out_uint16(s, 0); /* pad */
}
/* Output brush cache capability set */
static void
rdp_out_brushcache_caps(STREAM s)
{
out_uint16_le(s, RDP_CAPSET_BRUSHCACHE);
out_uint16_le(s, RDP_CAPLEN_BRUSHCACHE);
out_uint32_le(s, 1); /* cache type */
}
static uint8 caps_0x0d[] = {
0x01, 0x00, 0x00, 0x00, 0x09, 0x04, 0x00, 0x00,
0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
};
static uint8 caps_0x0c[] = { 0x01, 0x00, 0x00, 0x00 };
static uint8 caps_0x0e[] = { 0x01, 0x00, 0x00, 0x00 };
static uint8 caps_0x10[] = {
0xFE, 0x00, 0x04, 0x00, 0xFE, 0x00, 0x04, 0x00,
0xFE, 0x00, 0x08, 0x00, 0xFE, 0x00, 0x08, 0x00,
0xFE, 0x00, 0x10, 0x00, 0xFE, 0x00, 0x20, 0x00,
0xFE, 0x00, 0x40, 0x00, 0xFE, 0x00, 0x80, 0x00,
0xFE, 0x00, 0x00, 0x01, 0x40, 0x00, 0x00, 0x08,
0x00, 0x01, 0x00, 0x01, 0x02, 0x00, 0x00, 0x00
};
/* Output unknown capability sets */
static void
rdp_out_unknown_caps(STREAM s, uint16 id, uint16 length, uint8 * caps)
{
out_uint16_le(s, id);
out_uint16_le(s, length);
out_uint8p(s, caps, length - 4);
}
#define RDP5_FLAG 0x0030
/* Send a confirm active PDU */
static void
rdp_send_confirm_active(void)
{
STREAM s;
uint32 sec_flags = g_encryption ? (RDP5_FLAG | SEC_ENCRYPT) : RDP5_FLAG;
uint16 caplen =
RDP_CAPLEN_GENERAL + RDP_CAPLEN_BITMAP + RDP_CAPLEN_ORDER +
RDP_CAPLEN_COLCACHE +
RDP_CAPLEN_ACTIVATE + RDP_CAPLEN_CONTROL +
RDP_CAPLEN_SHARE +
RDP_CAPLEN_BRUSHCACHE + 0x58 + 0x08 + 0x08 + 0x34 /* unknown caps */ +
4 /* w2k fix, sessionid */ ;
if (g_rdp_version >= RDP_V5)
{
caplen += RDP_CAPLEN_BMPCACHE2;
caplen += RDP_CAPLEN_NEWPOINTER;
}
else
{
caplen += RDP_CAPLEN_BMPCACHE;
caplen += RDP_CAPLEN_POINTER;
}
s = sec_init(sec_flags, 6 + 14 + caplen + sizeof(RDP_SOURCE));
out_uint16_le(s, 2 + 14 + caplen + sizeof(RDP_SOURCE));
out_uint16_le(s, (RDP_PDU_CONFIRM_ACTIVE | 0x10)); /* Version 1 */
out_uint16_le(s, (g_mcs_userid + 1001));
out_uint32_le(s, g_rdp_shareid);
out_uint16_le(s, 0x3ea); /* userid */
out_uint16_le(s, sizeof(RDP_SOURCE));
out_uint16_le(s, caplen);
out_uint8p(s, RDP_SOURCE, sizeof(RDP_SOURCE));
out_uint16_le(s, 0xe); /* num_caps */
out_uint8s(s, 2); /* pad */
rdp_out_general_caps(s);
rdp_out_bitmap_caps(s);
rdp_out_order_caps(s);
if (g_rdp_version >= RDP_V5)
{
rdp_out_bmpcache2_caps(s);
rdp_out_newpointer_caps(s);
}
else
{
rdp_out_bmpcache_caps(s);
rdp_out_pointer_caps(s);
}
rdp_out_colcache_caps(s);
rdp_out_activate_caps(s);
rdp_out_control_caps(s);
rdp_out_share_caps(s);
rdp_out_brushcache_caps(s);
rdp_out_unknown_caps(s, 0x0d, 0x58, caps_0x0d); /* CAPSTYPE_INPUT */
rdp_out_unknown_caps(s, 0x0c, 0x08, caps_0x0c); /* CAPSTYPE_SOUND */
rdp_out_unknown_caps(s, 0x0e, 0x08, caps_0x0e); /* CAPSTYPE_FONT */
rdp_out_unknown_caps(s, 0x10, 0x34, caps_0x10); /* CAPSTYPE_GLYPHCACHE */
s_mark_end(s);
sec_send(s, sec_flags);
}
/* Process a general capability set */
static void
rdp_process_general_caps(STREAM s)
{
uint16 pad2octetsB; /* rdp5 flags? */
in_uint8s(s, 10);
in_uint16_le(s, pad2octetsB);
if (!pad2octetsB)
g_rdp_version = RDP_V4;
}
/* Process a bitmap capability set */
static void
rdp_process_bitmap_caps(STREAM s)
{
uint16 width, height, depth;
in_uint16_le(s, depth);
in_uint8s(s, 6);
in_uint16_le(s, width);
in_uint16_le(s, height);
DEBUG(("setting desktop size and depth to: %dx%dx%d\n", width, height, depth));
/*
* The server may limit depth and change the size of the desktop (for
* example when shadowing another session).
*/
if (g_server_depth != depth)
{
warning("Remote desktop does not support colour depth %d; falling back to %d\n",
g_server_depth, depth);
g_server_depth = depth;
}
if (g_width != width || g_height != height)
{
warning("Remote desktop changed from %dx%d to %dx%d.\n", g_width, g_height,
width, height);
g_width = width;
g_height = height;
ui_resize_window();
}
}