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/* -*- c-basic-offset: 8 -*- |
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rdesktop: A Remote Desktop Protocol client. |
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Protocol services - RDP layer |
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Copyright (C) Matthew Chapman 1999-2002 |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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|
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#include <time.h> |
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#include "rdesktop.h" |
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|
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extern uint16 g_mcs_userid; |
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extern char g_username[16]; |
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extern BOOL g_bitmap_compression; |
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extern BOOL g_orders; |
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extern BOOL g_encryption; |
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extern BOOL g_desktop_save; |
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extern BOOL g_use_rdp5; |
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extern uint16 g_server_rdp_version; |
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extern uint32 g_rdp5_performanceflags; |
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extern int g_server_bpp; |
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|
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uint8 *g_next_packet; |
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uint32 g_rdp_shareid; |
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|
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#if WITH_DEBUG |
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static uint32 g_packetno; |
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#endif |
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|
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/* Receive an RDP packet */ |
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static STREAM |
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rdp_recv(uint8 * type) |
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{ |
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static STREAM rdp_s; |
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uint16 length, pdu_type; |
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|
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if ((rdp_s == NULL) || (g_next_packet >= rdp_s->end)) |
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{ |
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rdp_s = sec_recv(); |
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if (rdp_s == NULL) |
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return NULL; |
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|
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g_next_packet = rdp_s->p; |
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} |
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else |
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{ |
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rdp_s->p = g_next_packet; |
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} |
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|
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in_uint16_le(rdp_s, length); |
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/* 32k packets are really 8, keepalive fix */ |
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if (length == 0x8000) |
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{ |
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g_next_packet += 8; |
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*type = 0; |
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return rdp_s; |
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} |
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in_uint16_le(rdp_s, pdu_type); |
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in_uint8s(rdp_s, 2); /* userid */ |
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*type = pdu_type & 0xf; |
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|
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#if WITH_DEBUG |
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DEBUG(("RDP packet #%d, (type %x)\n", ++g_packetno, *type)); |
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hexdump(g_next_packet, length); |
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#endif /* */ |
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|
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g_next_packet += length; |
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return rdp_s; |
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} |
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|
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/* Initialise an RDP data packet */ |
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static STREAM |
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rdp_init_data(int maxlen) |
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{ |
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STREAM s; |
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|
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s = sec_init(g_encryption ? SEC_ENCRYPT : 0, maxlen + 18); |
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s_push_layer(s, rdp_hdr, 18); |
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|
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return s; |
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} |
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|
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/* Send an RDP data packet */ |
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static void |
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rdp_send_data(STREAM s, uint8 data_pdu_type) |
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{ |
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uint16 length; |
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|
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s_pop_layer(s, rdp_hdr); |
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length = s->end - s->p; |
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|
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out_uint16_le(s, length); |
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out_uint16_le(s, (RDP_PDU_DATA | 0x10)); |
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out_uint16_le(s, (g_mcs_userid + 1001)); |
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|
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out_uint32_le(s, g_rdp_shareid); |
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out_uint8(s, 0); /* pad */ |
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out_uint8(s, 1); /* streamid */ |
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out_uint16_le(s, (length - 14)); |
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out_uint8(s, data_pdu_type); |
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out_uint8(s, 0); /* compress_type */ |
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out_uint16(s, 0); /* compress_len */ |
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|
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sec_send(s, g_encryption ? SEC_ENCRYPT : 0); |
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} |
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|
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/* Output a string in Unicode */ |
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void |
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rdp_out_unistr(STREAM s, char *string, int len) |
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{ |
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int i = 0, j = 0; |
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|
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len += 2; |
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|
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while (i < len) |
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{ |
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s->p[i++] = string[j++]; |
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s->p[i++] = 0; |
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} |
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|
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s->p += len; |
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} |
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|
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/* Input a string in Unicode |
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* |
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* Returns str_len of string |
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*/ |
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int |
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rdp_in_unistr(STREAM s, char *string, int uni_len) |
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{ |
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int i = 0; |
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|
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while (i < uni_len / 2) |
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{ |
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in_uint8a(s, &string[i++], 1); |
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in_uint8s(s, 1); |
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} |
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|
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return i - 1; |
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} |
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|
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|
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/* Parse a logon info packet */ |
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static void |
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rdp_send_logon_info(uint32 flags, char *domain, char *user, |
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char *password, char *program, char *directory) |
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{ |
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char *ipaddr = tcp_get_address(); |
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int len_domain = 2 * strlen(domain); |
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int len_user = 2 * strlen(user); |
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int len_password = 2 * strlen(password); |
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int len_program = 2 * strlen(program); |
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int len_directory = 2 * strlen(directory); |
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int len_ip = 2 * strlen(ipaddr); |
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int len_dll = 2 * strlen("C:\\WINNT\\System32\\mstscax.dll"); |
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int packetlen = 0; |
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uint32 sec_flags = g_encryption ? (SEC_LOGON_INFO | SEC_ENCRYPT) : SEC_LOGON_INFO; |
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STREAM s; |
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time_t t = time(NULL); |
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time_t tzone; |
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|
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#if 0 |
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// enable rdp compression |
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flags |= RDP_COMPRESSION; |
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#endif |
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|
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if (!g_use_rdp5 || 1 == g_server_rdp_version) |
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{ |
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DEBUG_RDP5(("Sending RDP4-style Logon packet\n")); |
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|
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s = sec_init(sec_flags, 18 + len_domain + len_user + len_password |
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+ len_program + len_directory + 10); |
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|
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out_uint32(s, 0); |
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out_uint32_le(s, flags); |
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out_uint16_le(s, len_domain); |
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out_uint16_le(s, len_user); |
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out_uint16_le(s, len_password); |
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out_uint16_le(s, len_program); |
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out_uint16_le(s, len_directory); |
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rdp_out_unistr(s, domain, len_domain); |
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rdp_out_unistr(s, user, len_user); |
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rdp_out_unistr(s, password, len_password); |
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rdp_out_unistr(s, program, len_program); |
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rdp_out_unistr(s, directory, len_directory); |
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} |
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else |
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{ |
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flags |= RDP_LOGON_BLOB; |
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DEBUG_RDP5(("Sending RDP5-style Logon packet\n")); |
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packetlen = 4 + /* Unknown uint32 */ |
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4 + /* flags */ |
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2 + /* len_domain */ |
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2 + /* len_user */ |
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(flags & RDP_LOGON_AUTO ? 2 : 0) + /* len_password */ |
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(flags & RDP_LOGON_BLOB ? 2 : 0) + /* Length of BLOB */ |
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2 + /* len_program */ |
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2 + /* len_directory */ |
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(0 < len_domain ? len_domain : 2) + /* domain */ |
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len_user + (flags & RDP_LOGON_AUTO ? len_password : 0) + 0 + /* We have no 512 byte BLOB. Perhaps we must? */ |
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(flags & RDP_LOGON_BLOB && !(flags & RDP_LOGON_AUTO) ? 2 : 0) + /* After the BLOB is a unknown int16. If there is a BLOB, that is. */ |
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(0 < len_program ? len_program : 2) + (0 < len_directory ? len_directory : 2) + 2 + /* Unknown (2) */ |
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2 + /* Client ip length */ |
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len_ip + /* Client ip */ |
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2 + /* DLL string length */ |
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len_dll + /* DLL string */ |
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2 + /* Unknown */ |
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2 + /* Unknown */ |
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64 + /* Time zone #0 */ |
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2 + /* Unknown */ |
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64 + /* Time zone #1 */ |
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32; /* Unknown */ |
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|
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s = sec_init(sec_flags, packetlen); |
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DEBUG_RDP5(("Called sec_init with packetlen %d\n", packetlen)); |
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|
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out_uint32(s, 0); /* Unknown */ |
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out_uint32_le(s, flags); |
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out_uint16_le(s, len_domain); |
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out_uint16_le(s, len_user); |
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if (flags & RDP_LOGON_AUTO) |
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{ |
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out_uint16_le(s, len_password); |
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|
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} |
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if (flags & RDP_LOGON_BLOB && !(flags & RDP_LOGON_AUTO)) |
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{ |
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out_uint16_le(s, 0); |
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} |
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out_uint16_le(s, len_program); |
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out_uint16_le(s, len_directory); |
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if (0 < len_domain) |
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rdp_out_unistr(s, domain, len_domain); |
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else |
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out_uint16_le(s, 0); |
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rdp_out_unistr(s, user, len_user); |
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if (flags & RDP_LOGON_AUTO) |
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{ |
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rdp_out_unistr(s, password, len_password); |
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} |
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if (flags & RDP_LOGON_BLOB && !(flags & RDP_LOGON_AUTO)) |
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{ |
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out_uint16_le(s, 0); |
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} |
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if (0 < len_program) |
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{ |
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rdp_out_unistr(s, program, len_program); |
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|
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} |
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else |
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{ |
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out_uint16_le(s, 0); |
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} |
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if (0 < len_directory) |
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{ |
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rdp_out_unistr(s, directory, len_directory); |
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} |
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else |
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{ |
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out_uint16_le(s, 0); |
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} |
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out_uint16_le(s, 2); |
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out_uint16_le(s, len_ip + 2); /* Length of client ip */ |
276 |
rdp_out_unistr(s, ipaddr, len_ip); |
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out_uint16_le(s, len_dll + 2); |
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rdp_out_unistr(s, "C:\\WINNT\\System32\\mstscax.dll", len_dll); |
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|
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tzone = (mktime(gmtime(&t)) - mktime(localtime(&t))) / 60; |
281 |
out_uint32_le(s, tzone); |
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|
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rdp_out_unistr(s, "GTB, normaltid", 2 * strlen("GTB, normaltid")); |
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out_uint8s(s, 62 - 2 * strlen("GTB, normaltid")); |
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|
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out_uint32_le(s, 0x0a0000); |
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out_uint32_le(s, 0x050000); |
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out_uint32_le(s, 3); |
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out_uint32_le(s, 0); |
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out_uint32_le(s, 0); |
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|
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rdp_out_unistr(s, "GTB, sommartid", 2 * strlen("GTB, sommartid")); |
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out_uint8s(s, 62 - 2 * strlen("GTB, sommartid")); |
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|
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out_uint32_le(s, 0x30000); |
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out_uint32_le(s, 0x050000); |
297 |
out_uint32_le(s, 2); |
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out_uint32(s, 0); |
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out_uint32_le(s, 0xffffffc4); |
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out_uint32_le(s, 0xfffffffe); |
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out_uint32_le(s, g_rdp5_performanceflags); |
302 |
out_uint32(s, 0); |
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|
304 |
|
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} |
306 |
s_mark_end(s); |
307 |
sec_send(s, sec_flags); |
308 |
} |
309 |
|
310 |
/* Send a control PDU */ |
311 |
static void |
312 |
rdp_send_control(uint16 action) |
313 |
{ |
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STREAM s; |
315 |
|
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s = rdp_init_data(8); |
317 |
|
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out_uint16_le(s, action); |
319 |
out_uint16(s, 0); /* userid */ |
320 |
out_uint32(s, 0); /* control id */ |
321 |
|
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s_mark_end(s); |
323 |
rdp_send_data(s, RDP_DATA_PDU_CONTROL); |
324 |
} |
325 |
|
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/* Send a synchronisation PDU */ |
327 |
static void |
328 |
rdp_send_synchronise(void) |
329 |
{ |
330 |
STREAM s; |
331 |
|
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s = rdp_init_data(4); |
333 |
|
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out_uint16_le(s, 1); /* type */ |
335 |
out_uint16_le(s, 1002); |
336 |
|
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s_mark_end(s); |
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rdp_send_data(s, RDP_DATA_PDU_SYNCHRONISE); |
339 |
} |
340 |
|
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/* Send a single input event */ |
342 |
void |
343 |
rdp_send_input(uint32 time, uint16 message_type, uint16 device_flags, uint16 param1, uint16 param2) |
344 |
{ |
345 |
STREAM s; |
346 |
|
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s = rdp_init_data(16); |
348 |
|
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out_uint16_le(s, 1); /* number of events */ |
350 |
out_uint16(s, 0); /* pad */ |
351 |
|
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out_uint32_le(s, time); |
353 |
out_uint16_le(s, message_type); |
354 |
out_uint16_le(s, device_flags); |
355 |
out_uint16_le(s, param1); |
356 |
out_uint16_le(s, param2); |
357 |
|
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s_mark_end(s); |
359 |
rdp_send_data(s, RDP_DATA_PDU_INPUT); |
360 |
} |
361 |
|
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/* Send an (empty) font information PDU */ |
363 |
static void |
364 |
rdp_send_fonts(uint16 seq) |
365 |
{ |
366 |
STREAM s; |
367 |
|
368 |
s = rdp_init_data(8); |
369 |
|
370 |
out_uint16(s, 0); /* number of fonts */ |
371 |
out_uint16_le(s, 0x3e); /* unknown */ |
372 |
out_uint16_le(s, seq); /* unknown */ |
373 |
out_uint16_le(s, 0x32); /* entry size */ |
374 |
|
375 |
s_mark_end(s); |
376 |
rdp_send_data(s, RDP_DATA_PDU_FONT2); |
377 |
} |
378 |
|
379 |
/* Output general capability set */ |
380 |
static void |
381 |
rdp_out_general_caps(STREAM s) |
382 |
{ |
383 |
out_uint16_le(s, RDP_CAPSET_GENERAL); |
384 |
out_uint16_le(s, RDP_CAPLEN_GENERAL); |
385 |
|
386 |
out_uint16_le(s, 1); /* OS major type */ |
387 |
out_uint16_le(s, 3); /* OS minor type */ |
388 |
out_uint16_le(s, 0x200); /* Protocol version */ |
389 |
out_uint16(s, 0); /* Pad */ |
390 |
out_uint16(s, 0); /* Compression types */ |
391 |
out_uint16_le(s, g_use_rdp5 ? 0x40d : 0); |
392 |
/* Pad, according to T.128. 0x40d seems to |
393 |
trigger |
394 |
the server to start sending RDP5 packets. |
395 |
However, the value is 0x1d04 with W2KTSK and |
396 |
NT4MS. Hmm.. Anyway, thankyou, Microsoft, |
397 |
for sending such information in a padding |
398 |
field.. */ |
399 |
out_uint16(s, 0); /* Update capability */ |
400 |
out_uint16(s, 0); /* Remote unshare capability */ |
401 |
out_uint16(s, 0); /* Compression level */ |
402 |
out_uint16(s, 0); /* Pad */ |
403 |
} |
404 |
|
405 |
/* Output bitmap capability set */ |
406 |
static void |
407 |
rdp_out_bitmap_caps(STREAM s) |
408 |
{ |
409 |
out_uint16_le(s, RDP_CAPSET_BITMAP); |
410 |
out_uint16_le(s, RDP_CAPLEN_BITMAP); |
411 |
|
412 |
out_uint16_le(s, g_server_bpp); /* Preferred BPP */ |
413 |
out_uint16_le(s, 1); /* Receive 1 BPP */ |
414 |
out_uint16_le(s, 1); /* Receive 4 BPP */ |
415 |
out_uint16_le(s, 1); /* Receive 8 BPP */ |
416 |
out_uint16_le(s, 800); /* Desktop width */ |
417 |
out_uint16_le(s, 600); /* Desktop height */ |
418 |
out_uint16(s, 0); /* Pad */ |
419 |
out_uint16(s, 0); /* Allow resize */ |
420 |
out_uint16_le(s, g_bitmap_compression ? 1 : 0); /* Support compression */ |
421 |
out_uint16(s, 0); /* Unknown */ |
422 |
out_uint16_le(s, 1); /* Unknown */ |
423 |
out_uint16(s, 0); /* Pad */ |
424 |
} |
425 |
|
426 |
/* Output order capability set */ |
427 |
static void |
428 |
rdp_out_order_caps(STREAM s) |
429 |
{ |
430 |
uint8 order_caps[32]; |
431 |
|
432 |
|
433 |
memset(order_caps, 0, 32); |
434 |
order_caps[0] = 1; /* dest blt */ |
435 |
order_caps[1] = 1; /* pat blt */ |
436 |
order_caps[2] = 1; /* screen blt */ |
437 |
order_caps[3] = 1; /* required for memblt? */ |
438 |
order_caps[8] = 1; /* line */ |
439 |
order_caps[9] = 1; /* line */ |
440 |
order_caps[10] = 1; /* rect */ |
441 |
order_caps[11] = (g_desktop_save == False ? 0 : 1); /* desksave */ |
442 |
order_caps[13] = 1; /* memblt */ |
443 |
order_caps[14] = 1; /* triblt */ |
444 |
order_caps[22] = 1; /* polyline */ |
445 |
order_caps[27] = 1; /* text2 */ |
446 |
out_uint16_le(s, RDP_CAPSET_ORDER); |
447 |
out_uint16_le(s, RDP_CAPLEN_ORDER); |
448 |
|
449 |
out_uint8s(s, 20); /* Terminal desc, pad */ |
450 |
out_uint16_le(s, 1); /* Cache X granularity */ |
451 |
out_uint16_le(s, 20); /* Cache Y granularity */ |
452 |
out_uint16(s, 0); /* Pad */ |
453 |
out_uint16_le(s, 1); /* Max order level */ |
454 |
out_uint16_le(s, 0x147); /* Number of fonts */ |
455 |
out_uint16_le(s, 0x2a); /* Capability flags */ |
456 |
out_uint8p(s, order_caps, 32); /* Orders supported */ |
457 |
out_uint16_le(s, 0x6a1); /* Text capability flags */ |
458 |
out_uint8s(s, 6); /* Pad */ |
459 |
out_uint32_le(s, g_desktop_save == False ? 0 : 0x38400); /* Desktop cache size */ |
460 |
out_uint32(s, 0); /* Unknown */ |
461 |
out_uint32_le(s, 0x4e4); /* Unknown */ |
462 |
} |
463 |
|
464 |
/* Output bitmap cache capability set */ |
465 |
static void |
466 |
rdp_out_bmpcache_caps(STREAM s) |
467 |
{ |
468 |
int Bpp; |
469 |
out_uint16_le(s, RDP_CAPSET_BMPCACHE); |
470 |
out_uint16_le(s, RDP_CAPLEN_BMPCACHE); |
471 |
|
472 |
Bpp = (g_server_bpp + 7) / 8; |
473 |
out_uint8s(s, 24); /* unused */ |
474 |
out_uint16_le(s, 0x258); /* entries */ |
475 |
out_uint16_le(s, 0x100 * Bpp); /* max cell size */ |
476 |
out_uint16_le(s, 0x12c); /* entries */ |
477 |
out_uint16_le(s, 0x400 * Bpp); /* max cell size */ |
478 |
out_uint16_le(s, 0x106); /* entries */ |
479 |
out_uint16_le(s, 0x1000 * Bpp); /* max cell size */ |
480 |
} |
481 |
|
482 |
/* Output control capability set */ |
483 |
static void |
484 |
rdp_out_control_caps(STREAM s) |
485 |
{ |
486 |
out_uint16_le(s, RDP_CAPSET_CONTROL); |
487 |
out_uint16_le(s, RDP_CAPLEN_CONTROL); |
488 |
|
489 |
out_uint16(s, 0); /* Control capabilities */ |
490 |
out_uint16(s, 0); /* Remote detach */ |
491 |
out_uint16_le(s, 2); /* Control interest */ |
492 |
out_uint16_le(s, 2); /* Detach interest */ |
493 |
} |
494 |
|
495 |
/* Output activation capability set */ |
496 |
static void |
497 |
rdp_out_activate_caps(STREAM s) |
498 |
{ |
499 |
out_uint16_le(s, RDP_CAPSET_ACTIVATE); |
500 |
out_uint16_le(s, RDP_CAPLEN_ACTIVATE); |
501 |
|
502 |
out_uint16(s, 0); /* Help key */ |
503 |
out_uint16(s, 0); /* Help index key */ |
504 |
out_uint16(s, 0); /* Extended help key */ |
505 |
out_uint16(s, 0); /* Window activate */ |
506 |
} |
507 |
|
508 |
/* Output pointer capability set */ |
509 |
static void |
510 |
rdp_out_pointer_caps(STREAM s) |
511 |
{ |
512 |
out_uint16_le(s, RDP_CAPSET_POINTER); |
513 |
out_uint16_le(s, RDP_CAPLEN_POINTER); |
514 |
|
515 |
out_uint16(s, 0); /* Colour pointer */ |
516 |
out_uint16_le(s, 20); /* Cache size */ |
517 |
} |
518 |
|
519 |
/* Output share capability set */ |
520 |
static void |
521 |
rdp_out_share_caps(STREAM s) |
522 |
{ |
523 |
out_uint16_le(s, RDP_CAPSET_SHARE); |
524 |
out_uint16_le(s, RDP_CAPLEN_SHARE); |
525 |
|
526 |
out_uint16(s, 0); /* userid */ |
527 |
out_uint16(s, 0); /* pad */ |
528 |
} |
529 |
|
530 |
/* Output colour cache capability set */ |
531 |
static void |
532 |
rdp_out_colcache_caps(STREAM s) |
533 |
{ |
534 |
out_uint16_le(s, RDP_CAPSET_COLCACHE); |
535 |
out_uint16_le(s, RDP_CAPLEN_COLCACHE); |
536 |
|
537 |
out_uint16_le(s, 6); /* cache size */ |
538 |
out_uint16(s, 0); /* pad */ |
539 |
} |
540 |
|
541 |
static uint8 canned_caps[] = { |
542 |
0x01, 0x00, 0x00, 0x00, 0x09, 0x04, 0x00, 0x00, 0x04, |
543 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, |
544 |
0x00, 0x00, 0x00, 0x00, 0x00, |
545 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
546 |
0x00, 0x00, 0x00, 0x00, 0x00, |
547 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
548 |
0x00, 0x00, 0x00, 0x00, 0x00, |
549 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
550 |
0x00, 0x00, 0x00, 0x00, 0x00, |
551 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
552 |
0x0C, 0x00, 0x08, 0x00, 0x01, |
553 |
0x00, 0x00, 0x00, 0x0E, 0x00, 0x08, 0x00, 0x01, 0x00, 0x00, 0x00, |
554 |
0x10, 0x00, 0x34, 0x00, 0xFE, |
555 |
0x00, 0x04, 0x00, 0xFE, 0x00, 0x04, 0x00, 0xFE, 0x00, 0x08, 0x00, |
556 |
0xFE, 0x00, 0x08, 0x00, 0xFE, |
557 |
0x00, 0x10, 0x00, 0xFE, 0x00, 0x20, 0x00, 0xFE, 0x00, 0x40, 0x00, |
558 |
0xFE, 0x00, 0x80, 0x00, 0xFE, |
559 |
0x00, 0x00, 0x01, 0x40, 0x00, 0x00, 0x08, 0x00, 0x01, 0x00, 0x01, |
560 |
0x02, 0x00, 0x00, 0x00 |
561 |
}; |
562 |
|
563 |
/* Output unknown capability sets (number 13, 12, 14 and 16) */ |
564 |
static void |
565 |
rdp_out_unknown_caps(STREAM s) |
566 |
{ |
567 |
out_uint16_le(s, RDP_CAPSET_UNKNOWN); |
568 |
out_uint16_le(s, 0x58); |
569 |
|
570 |
out_uint8p(s, canned_caps, RDP_CAPLEN_UNKNOWN - 4); |
571 |
} |
572 |
|
573 |
#define RDP5_FLAG 0x0030 |
574 |
/* Send a confirm active PDU */ |
575 |
static void |
576 |
rdp_send_confirm_active(void) |
577 |
{ |
578 |
STREAM s; |
579 |
uint32 sec_flags = g_encryption ? (RDP5_FLAG | SEC_ENCRYPT) : RDP5_FLAG; |
580 |
uint16 caplen = |
581 |
RDP_CAPLEN_GENERAL + RDP_CAPLEN_BITMAP + RDP_CAPLEN_ORDER + |
582 |
RDP_CAPLEN_BMPCACHE + RDP_CAPLEN_COLCACHE + |
583 |
RDP_CAPLEN_ACTIVATE + RDP_CAPLEN_CONTROL + |
584 |
RDP_CAPLEN_POINTER + RDP_CAPLEN_SHARE + RDP_CAPLEN_UNKNOWN + 4 /* w2k fix, why? */ ; |
585 |
|
586 |
s = sec_init(sec_flags, 6 + 14 + caplen + sizeof(RDP_SOURCE)); |
587 |
|
588 |
out_uint16_le(s, 2 + 14 + caplen + sizeof(RDP_SOURCE)); |
589 |
out_uint16_le(s, (RDP_PDU_CONFIRM_ACTIVE | 0x10)); /* Version 1 */ |
590 |
out_uint16_le(s, (g_mcs_userid + 1001)); |
591 |
|
592 |
out_uint32_le(s, g_rdp_shareid); |
593 |
out_uint16_le(s, 0x3ea); /* userid */ |
594 |
out_uint16_le(s, sizeof(RDP_SOURCE)); |
595 |
out_uint16_le(s, caplen); |
596 |
|
597 |
out_uint8p(s, RDP_SOURCE, sizeof(RDP_SOURCE)); |
598 |
out_uint16_le(s, 0xd); /* num_caps */ |
599 |
out_uint8s(s, 2); /* pad */ |
600 |
|
601 |
rdp_out_general_caps(s); |
602 |
rdp_out_bitmap_caps(s); |
603 |
rdp_out_order_caps(s); |
604 |
rdp_out_bmpcache_caps(s); |
605 |
rdp_out_colcache_caps(s); |
606 |
rdp_out_activate_caps(s); |
607 |
rdp_out_control_caps(s); |
608 |
rdp_out_pointer_caps(s); |
609 |
rdp_out_share_caps(s); |
610 |
rdp_out_unknown_caps(s); |
611 |
|
612 |
s_mark_end(s); |
613 |
sec_send(s, sec_flags); |
614 |
} |
615 |
|
616 |
/* Respond to a demand active PDU */ |
617 |
static void |
618 |
process_demand_active(STREAM s) |
619 |
{ |
620 |
uint8 type; |
621 |
uint16 i; |
622 |
uint16 p_bpp; |
623 |
|
624 |
in_uint32_le(s, g_rdp_shareid); |
625 |
|
626 |
/* scan for prefered bpp */ |
627 |
while (s_check_rem(s, 6)) |
628 |
{ |
629 |
in_uint16_le(s, i); |
630 |
if (i == RDP_CAPSET_BITMAP) |
631 |
{ |
632 |
in_uint16_le(s, i); |
633 |
if (i == RDP_CAPLEN_BITMAP) |
634 |
{ |
635 |
in_uint16_le(s, p_bpp); |
636 |
if (p_bpp == 8 || p_bpp == 15 || p_bpp == 16 || p_bpp == 24) |
637 |
{ |
638 |
if (p_bpp < g_server_bpp) |
639 |
{ |
640 |
warning("Server limited colour depth to %d bits\n", |
641 |
p_bpp); |
642 |
g_server_bpp = p_bpp; |
643 |
} |
644 |
break; |
645 |
} |
646 |
} |
647 |
} |
648 |
} |
649 |
|
650 |
|
651 |
DEBUG(("DEMAND_ACTIVE(id=0x%x)\n", g_rdp_shareid)); |
652 |
|
653 |
rdp_send_confirm_active(); |
654 |
rdp_send_synchronise(); |
655 |
rdp_send_control(RDP_CTL_COOPERATE); |
656 |
rdp_send_control(RDP_CTL_REQUEST_CONTROL); |
657 |
rdp_recv(&type); /* RDP_PDU_SYNCHRONIZE */ |
658 |
rdp_recv(&type); /* RDP_CTL_COOPERATE */ |
659 |
rdp_recv(&type); /* RDP_CTL_GRANT_CONTROL */ |
660 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, ui_get_numlock_state(read_keyboard_state()), 0); |
661 |
rdp_send_fonts(1); |
662 |
rdp_send_fonts(2); |
663 |
rdp_recv(&type); /* RDP_PDU_UNKNOWN 0x28 */ |
664 |
reset_order_state(); |
665 |
} |
666 |
|
667 |
/* Process a colour pointer PDU */ |
668 |
void |
669 |
process_colour_pointer_pdu(STREAM s) |
670 |
{ |
671 |
uint16 x, y, width, height, cache_idx, masklen, datalen; |
672 |
uint8 *mask, *data; |
673 |
HCURSOR cursor; |
674 |
|
675 |
in_uint16_le(s, cache_idx); |
676 |
in_uint16_le(s, x); |
677 |
in_uint16_le(s, y); |
678 |
in_uint16_le(s, width); |
679 |
in_uint16_le(s, height); |
680 |
in_uint16_le(s, masklen); |
681 |
in_uint16_le(s, datalen); |
682 |
in_uint8p(s, data, datalen); |
683 |
in_uint8p(s, mask, masklen); |
684 |
cursor = ui_create_cursor(x, y, width, height, mask, data); |
685 |
ui_set_cursor(cursor); |
686 |
cache_put_cursor(cache_idx, cursor); |
687 |
} |
688 |
|
689 |
/* Process a cached pointer PDU */ |
690 |
void |
691 |
process_cached_pointer_pdu(STREAM s) |
692 |
{ |
693 |
uint16 cache_idx; |
694 |
|
695 |
in_uint16_le(s, cache_idx); |
696 |
ui_set_cursor(cache_get_cursor(cache_idx)); |
697 |
} |
698 |
|
699 |
/* Process a system pointer PDU */ |
700 |
void |
701 |
process_system_pointer_pdu(STREAM s) |
702 |
{ |
703 |
uint16 system_pointer_type; |
704 |
|
705 |
in_uint16(s, system_pointer_type); |
706 |
switch (system_pointer_type) |
707 |
{ |
708 |
case RDP_NULL_POINTER: |
709 |
ui_set_null_cursor(); |
710 |
break; |
711 |
|
712 |
default: |
713 |
unimpl("System pointer message 0x%x\n", system_pointer_type); |
714 |
} |
715 |
} |
716 |
|
717 |
/* Process a pointer PDU */ |
718 |
static void |
719 |
process_pointer_pdu(STREAM s) |
720 |
{ |
721 |
uint16 message_type; |
722 |
uint16 x, y; |
723 |
|
724 |
in_uint16_le(s, message_type); |
725 |
in_uint8s(s, 2); /* pad */ |
726 |
|
727 |
switch (message_type) |
728 |
{ |
729 |
case RDP_POINTER_MOVE: |
730 |
in_uint16_le(s, x); |
731 |
in_uint16_le(s, y); |
732 |
if (s_check(s)) |
733 |
ui_move_pointer(x, y); |
734 |
break; |
735 |
|
736 |
case RDP_POINTER_COLOR: |
737 |
process_colour_pointer_pdu(s); |
738 |
break; |
739 |
|
740 |
case RDP_POINTER_CACHED: |
741 |
process_cached_pointer_pdu(s); |
742 |
break; |
743 |
|
744 |
case RDP_POINTER_SYSTEM: |
745 |
process_system_pointer_pdu(s); |
746 |
break; |
747 |
|
748 |
default: |
749 |
unimpl("Pointer message 0x%x\n", message_type); |
750 |
} |
751 |
} |
752 |
|
753 |
/* Process bitmap updates */ |
754 |
void |
755 |
process_bitmap_updates(STREAM s) |
756 |
{ |
757 |
uint16 num_updates; |
758 |
uint16 left, top, right, bottom, width, height; |
759 |
uint16 cx, cy, bpp, Bpp, compress, bufsize, size; |
760 |
uint8 *data, *bmpdata; |
761 |
int i; |
762 |
|
763 |
in_uint16_le(s, num_updates); |
764 |
|
765 |
for (i = 0; i < num_updates; i++) |
766 |
{ |
767 |
in_uint16_le(s, left); |
768 |
in_uint16_le(s, top); |
769 |
in_uint16_le(s, right); |
770 |
in_uint16_le(s, bottom); |
771 |
in_uint16_le(s, width); |
772 |
in_uint16_le(s, height); |
773 |
in_uint16_le(s, bpp); |
774 |
Bpp = (bpp + 7) / 8; |
775 |
in_uint16_le(s, compress); |
776 |
in_uint16_le(s, bufsize); |
777 |
|
778 |
cx = right - left + 1; |
779 |
cy = bottom - top + 1; |
780 |
|
781 |
DEBUG(("BITMAP_UPDATE(l=%d,t=%d,r=%d,b=%d,w=%d,h=%d,Bpp=%d,cmp=%d)\n", |
782 |
left, top, right, bottom, width, height, Bpp, compress)); |
783 |
|
784 |
if (!compress) |
785 |
{ |
786 |
int y; |
787 |
bmpdata = (uint8 *) xmalloc(width * height * Bpp); |
788 |
for (y = 0; y < height; y++) |
789 |
{ |
790 |
in_uint8a(s, &bmpdata[(height - y - 1) * (width * Bpp)], |
791 |
width * Bpp); |
792 |
} |
793 |
ui_paint_bitmap(left, top, cx, cy, width, height, bmpdata); |
794 |
xfree(bmpdata); |
795 |
continue; |
796 |
} |
797 |
|
798 |
|
799 |
if (compress & 0x400) |
800 |
{ |
801 |
size = bufsize; |
802 |
} |
803 |
else |
804 |
{ |
805 |
in_uint8s(s, 2); /* pad */ |
806 |
in_uint16_le(s, size); |
807 |
in_uint8s(s, 4); /* line_size, final_size */ |
808 |
} |
809 |
in_uint8p(s, data, size); |
810 |
bmpdata = (uint8 *) xmalloc(width * height * Bpp); |
811 |
if (bitmap_decompress(bmpdata, width, height, data, size, Bpp)) |
812 |
{ |
813 |
ui_paint_bitmap(left, top, cx, cy, width, height, bmpdata); |
814 |
} |
815 |
else |
816 |
{ |
817 |
DEBUG_RDP5(("Failed to decompress data\n")); |
818 |
} |
819 |
|
820 |
xfree(bmpdata); |
821 |
} |
822 |
} |
823 |
|
824 |
/* Process a palette update */ |
825 |
void |
826 |
process_palette(STREAM s) |
827 |
{ |
828 |
COLOURENTRY *entry; |
829 |
COLOURMAP map; |
830 |
HCOLOURMAP hmap; |
831 |
int i; |
832 |
|
833 |
in_uint8s(s, 2); /* pad */ |
834 |
in_uint16_le(s, map.ncolours); |
835 |
in_uint8s(s, 2); /* pad */ |
836 |
|
837 |
map.colours = (COLOURENTRY *) xmalloc(sizeof(COLOURENTRY) * map.ncolours); |
838 |
|
839 |
DEBUG(("PALETTE(c=%d)\n", map.ncolours)); |
840 |
|
841 |
for (i = 0; i < map.ncolours; i++) |
842 |
{ |
843 |
entry = &map.colours[i]; |
844 |
in_uint8(s, entry->red); |
845 |
in_uint8(s, entry->green); |
846 |
in_uint8(s, entry->blue); |
847 |
} |
848 |
|
849 |
hmap = ui_create_colourmap(&map); |
850 |
ui_set_colourmap(hmap); |
851 |
|
852 |
xfree(map.colours); |
853 |
} |
854 |
|
855 |
/* Process an update PDU */ |
856 |
static void |
857 |
process_update_pdu(STREAM s) |
858 |
{ |
859 |
uint16 update_type, count; |
860 |
|
861 |
in_uint16_le(s, update_type); |
862 |
|
863 |
switch (update_type) |
864 |
{ |
865 |
case RDP_UPDATE_ORDERS: |
866 |
in_uint8s(s, 2); /* pad */ |
867 |
in_uint16_le(s, count); |
868 |
in_uint8s(s, 2); /* pad */ |
869 |
process_orders(s, count); |
870 |
break; |
871 |
|
872 |
case RDP_UPDATE_BITMAP: |
873 |
process_bitmap_updates(s); |
874 |
break; |
875 |
|
876 |
case RDP_UPDATE_PALETTE: |
877 |
process_palette(s); |
878 |
break; |
879 |
|
880 |
case RDP_UPDATE_SYNCHRONIZE: |
881 |
break; |
882 |
|
883 |
default: |
884 |
unimpl("update %d\n", update_type); |
885 |
} |
886 |
|
887 |
} |
888 |
|
889 |
/* Process data PDU */ |
890 |
static void |
891 |
process_data_pdu(STREAM s) |
892 |
{ |
893 |
uint8 data_pdu_type; |
894 |
uint8 ctype; |
895 |
uint16 clen; |
896 |
int roff, rlen, len, ret; |
897 |
static struct stream ns; |
898 |
static signed char *dict = 0; |
899 |
|
900 |
in_uint8s(s, 6); /* shareid, pad, streamid */ |
901 |
in_uint16(s, len); |
902 |
in_uint8(s, data_pdu_type); |
903 |
in_uint8(s, ctype); |
904 |
in_uint16(s, clen); |
905 |
clen -= 18; |
906 |
|
907 |
#if 0 |
908 |
if (ctype & 0x20) |
909 |
{ |
910 |
if (!dict) |
911 |
{ |
912 |
dict = (signed char *) malloc(8200 * sizeof(signed char)); |
913 |
dict = (signed char *) memset(dict, 0, 8200 * sizeof(signed char)); |
914 |
} |
915 |
|
916 |
ret = decompress(s->p, clen, ctype, (signed char *) dict, &roff, &rlen); |
917 |
|
918 |
len -= 18; |
919 |
|
920 |
ns.data = xrealloc(ns.data, len); |
921 |
|
922 |
ns.data = (unsigned char *) memcpy(ns.data, (unsigned char *) (dict + roff), len); |
923 |
|
924 |
ns.size = len; |
925 |
ns.end = ns.data + ns.size; |
926 |
ns.p = ns.data; |
927 |
ns.rdp_hdr = ns.p; |
928 |
|
929 |
s = &ns; |
930 |
} |
931 |
#endif |
932 |
|
933 |
switch (data_pdu_type) |
934 |
{ |
935 |
case RDP_DATA_PDU_UPDATE: |
936 |
process_update_pdu(s); |
937 |
break; |
938 |
|
939 |
case RDP_DATA_PDU_POINTER: |
940 |
process_pointer_pdu(s); |
941 |
break; |
942 |
|
943 |
case RDP_DATA_PDU_BELL: |
944 |
ui_bell(); |
945 |
break; |
946 |
|
947 |
case RDP_DATA_PDU_LOGON: |
948 |
DEBUG(("Received Logon PDU\n")); |
949 |
/* User logged on */ |
950 |
break; |
951 |
|
952 |
case RDP_DATA_PDU_DISCONNECT: |
953 |
/* Normally received when user logs out or disconnects from a |
954 |
console session on Windows XP and 2003 Server */ |
955 |
DEBUG(("Received disconnect PDU\n")); |
956 |
break; |
957 |
|
958 |
default: |
959 |
unimpl("data PDU %d\n", data_pdu_type); |
960 |
} |
961 |
} |
962 |
|
963 |
/* Process incoming packets */ |
964 |
BOOL |
965 |
rdp_main_loop(void) |
966 |
{ |
967 |
uint8 type; |
968 |
STREAM s; |
969 |
|
970 |
while ((s = rdp_recv(&type)) != NULL) |
971 |
{ |
972 |
switch (type) |
973 |
{ |
974 |
case RDP_PDU_DEMAND_ACTIVE: |
975 |
process_demand_active(s); |
976 |
break; |
977 |
|
978 |
case RDP_PDU_DEACTIVATE: |
979 |
DEBUG(("RDP_PDU_DEACTIVATE\n")); |
980 |
/* We thought we could detect a clean |
981 |
shutdown of the session by this |
982 |
packet, but it seems Windows 2003 |
983 |
is sending us one of these when we |
984 |
reconnect to a disconnected session |
985 |
return True; */ |
986 |
break; |
987 |
|
988 |
case RDP_PDU_DATA: |
989 |
process_data_pdu(s); |
990 |
break; |
991 |
|
992 |
case 0: |
993 |
break; |
994 |
|
995 |
default: |
996 |
unimpl("PDU %d\n", type); |
997 |
} |
998 |
} |
999 |
return True; |
1000 |
/* We want to detect if we got a clean shutdown, but we |
1001 |
can't. Se above. |
1002 |
return False; */ |
1003 |
} |
1004 |
|
1005 |
/* Establish a connection up to the RDP layer */ |
1006 |
BOOL |
1007 |
rdp_connect(char *server, uint32 flags, char *domain, char *password, |
1008 |
char *command, char *directory) |
1009 |
{ |
1010 |
if (!sec_connect(server, g_username)) |
1011 |
return False; |
1012 |
|
1013 |
rdp_send_logon_info(flags, domain, g_username, password, command, directory); |
1014 |
return True; |
1015 |
} |
1016 |
|
1017 |
/* Disconnect from the RDP layer */ |
1018 |
void |
1019 |
rdp_disconnect(void) |
1020 |
{ |
1021 |
sec_disconnect(); |
1022 |
} |