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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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extern int g_width; |
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extern int g_height; |
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extern BOOL g_bitmap_cache; |
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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 */ |
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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; |
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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); |
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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); |
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out_uint32(s, 0); |
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|
307 |
|
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} |
309 |
s_mark_end(s); |
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sec_send(s, sec_flags); |
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} |
312 |
|
313 |
/* Send a control PDU */ |
314 |
static void |
315 |
rdp_send_control(uint16 action) |
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{ |
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STREAM s; |
318 |
|
319 |
s = rdp_init_data(8); |
320 |
|
321 |
out_uint16_le(s, action); |
322 |
out_uint16(s, 0); /* userid */ |
323 |
out_uint32(s, 0); /* control id */ |
324 |
|
325 |
s_mark_end(s); |
326 |
rdp_send_data(s, RDP_DATA_PDU_CONTROL); |
327 |
} |
328 |
|
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/* Send a synchronisation PDU */ |
330 |
static void |
331 |
rdp_send_synchronise(void) |
332 |
{ |
333 |
STREAM s; |
334 |
|
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s = rdp_init_data(4); |
336 |
|
337 |
out_uint16_le(s, 1); /* type */ |
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out_uint16_le(s, 1002); |
339 |
|
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s_mark_end(s); |
341 |
rdp_send_data(s, RDP_DATA_PDU_SYNCHRONISE); |
342 |
} |
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|
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/* Send a single input event */ |
345 |
void |
346 |
rdp_send_input(uint32 time, uint16 message_type, uint16 device_flags, uint16 param1, uint16 param2) |
347 |
{ |
348 |
STREAM s; |
349 |
|
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s = rdp_init_data(16); |
351 |
|
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out_uint16_le(s, 1); /* number of events */ |
353 |
out_uint16(s, 0); /* pad */ |
354 |
|
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out_uint32_le(s, time); |
356 |
out_uint16_le(s, message_type); |
357 |
out_uint16_le(s, device_flags); |
358 |
out_uint16_le(s, param1); |
359 |
out_uint16_le(s, param2); |
360 |
|
361 |
s_mark_end(s); |
362 |
rdp_send_data(s, RDP_DATA_PDU_INPUT); |
363 |
} |
364 |
|
365 |
/* Send an (empty) font information PDU */ |
366 |
static void |
367 |
rdp_send_fonts(uint16 seq) |
368 |
{ |
369 |
STREAM s; |
370 |
|
371 |
s = rdp_init_data(8); |
372 |
|
373 |
out_uint16(s, 0); /* number of fonts */ |
374 |
out_uint16_le(s, 0); /* pad? */ |
375 |
out_uint16_le(s, seq); /* unknown */ |
376 |
out_uint16_le(s, 0x32); /* entry size */ |
377 |
|
378 |
s_mark_end(s); |
379 |
rdp_send_data(s, RDP_DATA_PDU_FONT2); |
380 |
} |
381 |
|
382 |
/* Output general capability set */ |
383 |
static void |
384 |
rdp_out_general_caps(STREAM s) |
385 |
{ |
386 |
out_uint16_le(s, RDP_CAPSET_GENERAL); |
387 |
out_uint16_le(s, RDP_CAPLEN_GENERAL); |
388 |
|
389 |
out_uint16_le(s, 1); /* OS major type */ |
390 |
out_uint16_le(s, 3); /* OS minor type */ |
391 |
out_uint16_le(s, 0x200); /* Protocol version */ |
392 |
out_uint16(s, 0); /* Pad */ |
393 |
out_uint16(s, 0); /* Compression types */ |
394 |
out_uint16_le(s, g_use_rdp5 ? 0x40d : 0); |
395 |
/* Pad, according to T.128. 0x40d seems to |
396 |
trigger |
397 |
the server to start sending RDP5 packets. |
398 |
However, the value is 0x1d04 with W2KTSK and |
399 |
NT4MS. Hmm.. Anyway, thankyou, Microsoft, |
400 |
for sending such information in a padding |
401 |
field.. */ |
402 |
out_uint16(s, 0); /* Update capability */ |
403 |
out_uint16(s, 0); /* Remote unshare capability */ |
404 |
out_uint16(s, 0); /* Compression level */ |
405 |
out_uint16(s, 0); /* Pad */ |
406 |
} |
407 |
|
408 |
/* Output bitmap capability set */ |
409 |
static void |
410 |
rdp_out_bitmap_caps(STREAM s) |
411 |
{ |
412 |
out_uint16_le(s, RDP_CAPSET_BITMAP); |
413 |
out_uint16_le(s, RDP_CAPLEN_BITMAP); |
414 |
|
415 |
out_uint16_le(s, g_server_bpp); /* Preferred BPP */ |
416 |
out_uint16_le(s, 1); /* Receive 1 BPP */ |
417 |
out_uint16_le(s, 1); /* Receive 4 BPP */ |
418 |
out_uint16_le(s, 1); /* Receive 8 BPP */ |
419 |
out_uint16_le(s, 800); /* Desktop width */ |
420 |
out_uint16_le(s, 600); /* Desktop height */ |
421 |
out_uint16(s, 0); /* Pad */ |
422 |
out_uint16(s, 1); /* Allow resize */ |
423 |
out_uint16_le(s, g_bitmap_compression ? 1 : 0); /* Support compression */ |
424 |
out_uint16(s, 0); /* Unknown */ |
425 |
out_uint16_le(s, 1); /* Unknown */ |
426 |
out_uint16(s, 0); /* Pad */ |
427 |
} |
428 |
|
429 |
/* Output order capability set */ |
430 |
static void |
431 |
rdp_out_order_caps(STREAM s) |
432 |
{ |
433 |
uint8 order_caps[32]; |
434 |
|
435 |
|
436 |
memset(order_caps, 0, 32); |
437 |
order_caps[0] = 1; /* dest blt */ |
438 |
order_caps[1] = 1; /* pat blt */ |
439 |
order_caps[2] = 1; /* screen blt */ |
440 |
order_caps[3] = (g_bitmap_cache ? 1 : 0); /* memblt */ |
441 |
order_caps[8] = 1; /* line */ |
442 |
order_caps[9] = 1; /* line */ |
443 |
order_caps[10] = 1; /* rect */ |
444 |
order_caps[11] = (g_desktop_save == False ? 0 : 1); /* desksave */ |
445 |
order_caps[13] = 1; /* memblt */ |
446 |
order_caps[14] = 1; /* triblt */ |
447 |
order_caps[22] = 1; /* polyline */ |
448 |
order_caps[27] = 1; /* text2 */ |
449 |
out_uint16_le(s, RDP_CAPSET_ORDER); |
450 |
out_uint16_le(s, RDP_CAPLEN_ORDER); |
451 |
|
452 |
out_uint8s(s, 20); /* Terminal desc, pad */ |
453 |
out_uint16_le(s, 1); /* Cache X granularity */ |
454 |
out_uint16_le(s, 20); /* Cache Y granularity */ |
455 |
out_uint16(s, 0); /* Pad */ |
456 |
out_uint16_le(s, 1); /* Max order level */ |
457 |
out_uint16_le(s, 0x147); /* Number of fonts */ |
458 |
out_uint16_le(s, 0x2a); /* Capability flags */ |
459 |
out_uint8p(s, order_caps, 32); /* Orders supported */ |
460 |
out_uint16_le(s, 0x6a1); /* Text capability flags */ |
461 |
out_uint8s(s, 6); /* Pad */ |
462 |
out_uint32_le(s, g_desktop_save == False ? 0 : 0x38400); /* Desktop cache size */ |
463 |
out_uint32(s, 0); /* Unknown */ |
464 |
out_uint32_le(s, 0x4e4); /* Unknown */ |
465 |
} |
466 |
|
467 |
/* Output bitmap cache capability set */ |
468 |
static void |
469 |
rdp_out_bmpcache_caps(STREAM s) |
470 |
{ |
471 |
int Bpp; |
472 |
out_uint16_le(s, RDP_CAPSET_BMPCACHE); |
473 |
out_uint16_le(s, RDP_CAPLEN_BMPCACHE); |
474 |
|
475 |
Bpp = (g_server_bpp + 7) / 8; |
476 |
out_uint8s(s, 24); /* unused */ |
477 |
out_uint16_le(s, 0x258); /* entries */ |
478 |
out_uint16_le(s, 0x100 * Bpp); /* max cell size */ |
479 |
out_uint16_le(s, 0x12c); /* entries */ |
480 |
out_uint16_le(s, 0x400 * Bpp); /* max cell size */ |
481 |
out_uint16_le(s, 0x106); /* entries */ |
482 |
out_uint16_le(s, 0x1000 * Bpp); /* max cell size */ |
483 |
} |
484 |
|
485 |
/* Output control capability set */ |
486 |
static void |
487 |
rdp_out_control_caps(STREAM s) |
488 |
{ |
489 |
out_uint16_le(s, RDP_CAPSET_CONTROL); |
490 |
out_uint16_le(s, RDP_CAPLEN_CONTROL); |
491 |
|
492 |
out_uint16(s, 0); /* Control capabilities */ |
493 |
out_uint16(s, 0); /* Remote detach */ |
494 |
out_uint16_le(s, 2); /* Control interest */ |
495 |
out_uint16_le(s, 2); /* Detach interest */ |
496 |
} |
497 |
|
498 |
/* Output activation capability set */ |
499 |
static void |
500 |
rdp_out_activate_caps(STREAM s) |
501 |
{ |
502 |
out_uint16_le(s, RDP_CAPSET_ACTIVATE); |
503 |
out_uint16_le(s, RDP_CAPLEN_ACTIVATE); |
504 |
|
505 |
out_uint16(s, 0); /* Help key */ |
506 |
out_uint16(s, 0); /* Help index key */ |
507 |
out_uint16(s, 0); /* Extended help key */ |
508 |
out_uint16(s, 0); /* Window activate */ |
509 |
} |
510 |
|
511 |
/* Output pointer capability set */ |
512 |
static void |
513 |
rdp_out_pointer_caps(STREAM s) |
514 |
{ |
515 |
out_uint16_le(s, RDP_CAPSET_POINTER); |
516 |
out_uint16_le(s, RDP_CAPLEN_POINTER); |
517 |
|
518 |
out_uint16(s, 0); /* Colour pointer */ |
519 |
out_uint16_le(s, 20); /* Cache size */ |
520 |
} |
521 |
|
522 |
/* Output share capability set */ |
523 |
static void |
524 |
rdp_out_share_caps(STREAM s) |
525 |
{ |
526 |
out_uint16_le(s, RDP_CAPSET_SHARE); |
527 |
out_uint16_le(s, RDP_CAPLEN_SHARE); |
528 |
|
529 |
out_uint16(s, 0); /* userid */ |
530 |
out_uint16(s, 0); /* pad */ |
531 |
} |
532 |
|
533 |
/* Output colour cache capability set */ |
534 |
static void |
535 |
rdp_out_colcache_caps(STREAM s) |
536 |
{ |
537 |
out_uint16_le(s, RDP_CAPSET_COLCACHE); |
538 |
out_uint16_le(s, RDP_CAPLEN_COLCACHE); |
539 |
|
540 |
out_uint16_le(s, 6); /* cache size */ |
541 |
out_uint16(s, 0); /* pad */ |
542 |
} |
543 |
|
544 |
static uint8 canned_caps[] = { |
545 |
0x01, 0x00, 0x00, 0x00, 0x09, 0x04, 0x00, 0x00, 0x04, |
546 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, |
547 |
0x00, 0x00, 0x00, 0x00, 0x00, |
548 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
549 |
0x00, 0x00, 0x00, 0x00, 0x00, |
550 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
551 |
0x00, 0x00, 0x00, 0x00, 0x00, |
552 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
553 |
0x00, 0x00, 0x00, 0x00, 0x00, |
554 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
555 |
0x0C, 0x00, 0x08, 0x00, 0x01, |
556 |
0x00, 0x00, 0x00, 0x0E, 0x00, 0x08, 0x00, 0x01, 0x00, 0x00, 0x00, |
557 |
0x10, 0x00, 0x34, 0x00, 0xFE, |
558 |
0x00, 0x04, 0x00, 0xFE, 0x00, 0x04, 0x00, 0xFE, 0x00, 0x08, 0x00, |
559 |
0xFE, 0x00, 0x08, 0x00, 0xFE, |
560 |
0x00, 0x10, 0x00, 0xFE, 0x00, 0x20, 0x00, 0xFE, 0x00, 0x40, 0x00, |
561 |
0xFE, 0x00, 0x80, 0x00, 0xFE, |
562 |
0x00, 0x00, 0x01, 0x40, 0x00, 0x00, 0x08, 0x00, 0x01, 0x00, 0x01, |
563 |
0x02, 0x00, 0x00, 0x00 |
564 |
}; |
565 |
|
566 |
/* Output unknown capability sets (number 13, 12, 14 and 16) */ |
567 |
static void |
568 |
rdp_out_unknown_caps(STREAM s) |
569 |
{ |
570 |
out_uint16_le(s, RDP_CAPSET_UNKNOWN); |
571 |
out_uint16_le(s, 0x58); |
572 |
|
573 |
out_uint8p(s, canned_caps, RDP_CAPLEN_UNKNOWN - 4); |
574 |
} |
575 |
|
576 |
#define RDP5_FLAG 0x0030 |
577 |
/* Send a confirm active PDU */ |
578 |
static void |
579 |
rdp_send_confirm_active(void) |
580 |
{ |
581 |
STREAM s; |
582 |
uint32 sec_flags = g_encryption ? (RDP5_FLAG | SEC_ENCRYPT) : RDP5_FLAG; |
583 |
uint16 caplen = |
584 |
RDP_CAPLEN_GENERAL + RDP_CAPLEN_BITMAP + RDP_CAPLEN_ORDER + |
585 |
RDP_CAPLEN_BMPCACHE + RDP_CAPLEN_COLCACHE + |
586 |
RDP_CAPLEN_ACTIVATE + RDP_CAPLEN_CONTROL + |
587 |
RDP_CAPLEN_POINTER + RDP_CAPLEN_SHARE + RDP_CAPLEN_UNKNOWN + 4 /* w2k fix, why? */ ; |
588 |
|
589 |
s = sec_init(sec_flags, 6 + 14 + caplen + sizeof(RDP_SOURCE)); |
590 |
|
591 |
out_uint16_le(s, 2 + 14 + caplen + sizeof(RDP_SOURCE)); |
592 |
out_uint16_le(s, (RDP_PDU_CONFIRM_ACTIVE | 0x10)); /* Version 1 */ |
593 |
out_uint16_le(s, (g_mcs_userid + 1001)); |
594 |
|
595 |
out_uint32_le(s, g_rdp_shareid); |
596 |
out_uint16_le(s, 0x3ea); /* userid */ |
597 |
out_uint16_le(s, sizeof(RDP_SOURCE)); |
598 |
out_uint16_le(s, caplen); |
599 |
|
600 |
out_uint8p(s, RDP_SOURCE, sizeof(RDP_SOURCE)); |
601 |
out_uint16_le(s, 0xd); /* num_caps */ |
602 |
out_uint8s(s, 2); /* pad */ |
603 |
|
604 |
rdp_out_general_caps(s); |
605 |
rdp_out_bitmap_caps(s); |
606 |
rdp_out_order_caps(s); |
607 |
rdp_out_bmpcache_caps(s); |
608 |
rdp_out_colcache_caps(s); |
609 |
rdp_out_activate_caps(s); |
610 |
rdp_out_control_caps(s); |
611 |
rdp_out_pointer_caps(s); |
612 |
rdp_out_share_caps(s); |
613 |
rdp_out_unknown_caps(s); |
614 |
|
615 |
s_mark_end(s); |
616 |
sec_send(s, sec_flags); |
617 |
} |
618 |
|
619 |
/* Process a general capability set */ |
620 |
static void |
621 |
rdp_process_general_caps(STREAM s) |
622 |
{ |
623 |
uint16 pad2octetsB; /* rdp5 flags? */ |
624 |
|
625 |
in_uint8s(s, 10); |
626 |
in_uint16_le(s, pad2octetsB); |
627 |
|
628 |
if (!pad2octetsB) |
629 |
g_use_rdp5 = False; |
630 |
} |
631 |
|
632 |
/* Process a bitmap capability set */ |
633 |
static void |
634 |
rdp_process_bitmap_caps(STREAM s) |
635 |
{ |
636 |
uint16 width, height, bpp; |
637 |
|
638 |
in_uint16_le(s, bpp); |
639 |
in_uint8s(s, 6); |
640 |
|
641 |
in_uint16_le(s, width); |
642 |
in_uint16_le(s, height); |
643 |
|
644 |
DEBUG(("setting desktop size and bpp to: %dx%dx%d\n", width, height, bpp)); |
645 |
|
646 |
/* |
647 |
* The server may limit bpp and change the size of the desktop (for |
648 |
* example when shadowing another session). |
649 |
*/ |
650 |
g_server_bpp = bpp; |
651 |
g_width = width; |
652 |
g_height = height; |
653 |
|
654 |
ui_resize_window(); |
655 |
} |
656 |
|
657 |
/* Respond to a demand active PDU */ |
658 |
static void |
659 |
process_demand_active(STREAM s) |
660 |
{ |
661 |
int n; |
662 |
uint8 type, *next; |
663 |
uint16 len_src_descriptor, len_combined_caps, num_capsets, capset_type, capset_length; |
664 |
|
665 |
in_uint32_le(s, g_rdp_shareid); |
666 |
in_uint16_le(s, len_src_descriptor); |
667 |
in_uint16_le(s, len_combined_caps); |
668 |
in_uint8s(s, len_src_descriptor); |
669 |
|
670 |
in_uint16_le(s, num_capsets); |
671 |
in_uint8s(s, 2); /* pad */ |
672 |
|
673 |
DEBUG(("DEMAND_ACTIVE(id=0x%x,num_caps=%d)\n", g_rdp_shareid, num_capsets)); |
674 |
|
675 |
for (n = 0; n < num_capsets; n++) |
676 |
{ |
677 |
in_uint16_le(s, capset_type); |
678 |
in_uint16_le(s, capset_length); |
679 |
|
680 |
next = s->p + capset_length - 4; |
681 |
|
682 |
switch (capset_type) |
683 |
{ |
684 |
case RDP_CAPSET_GENERAL: |
685 |
rdp_process_general_caps(s); |
686 |
break; |
687 |
|
688 |
case RDP_CAPSET_BITMAP: |
689 |
rdp_process_bitmap_caps(s); |
690 |
break; |
691 |
} |
692 |
|
693 |
s->p = next; |
694 |
} |
695 |
|
696 |
rdp_send_confirm_active(); |
697 |
rdp_send_synchronise(); |
698 |
rdp_send_control(RDP_CTL_COOPERATE); |
699 |
rdp_send_control(RDP_CTL_REQUEST_CONTROL); |
700 |
rdp_recv(&type); /* RDP_PDU_SYNCHRONIZE */ |
701 |
rdp_recv(&type); /* RDP_CTL_COOPERATE */ |
702 |
rdp_recv(&type); /* RDP_CTL_GRANT_CONTROL */ |
703 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, ui_get_numlock_state(read_keyboard_state()), 0); |
704 |
|
705 |
if (g_use_rdp5) |
706 |
{ |
707 |
rdp_send_fonts(3); |
708 |
} |
709 |
else |
710 |
{ |
711 |
rdp_send_fonts(1); |
712 |
rdp_send_fonts(2); |
713 |
} |
714 |
|
715 |
rdp_recv(&type); /* RDP_PDU_UNKNOWN 0x28 (Fonts?) */ |
716 |
reset_order_state(); |
717 |
} |
718 |
|
719 |
/* Process a colour pointer PDU */ |
720 |
void |
721 |
process_colour_pointer_pdu(STREAM s) |
722 |
{ |
723 |
uint16 x, y, width, height, cache_idx, masklen, datalen; |
724 |
uint8 *mask, *data; |
725 |
HCURSOR cursor; |
726 |
|
727 |
in_uint16_le(s, cache_idx); |
728 |
in_uint16_le(s, x); |
729 |
in_uint16_le(s, y); |
730 |
in_uint16_le(s, width); |
731 |
in_uint16_le(s, height); |
732 |
in_uint16_le(s, masklen); |
733 |
in_uint16_le(s, datalen); |
734 |
in_uint8p(s, data, datalen); |
735 |
in_uint8p(s, mask, masklen); |
736 |
cursor = ui_create_cursor(x, y, width, height, mask, data); |
737 |
ui_set_cursor(cursor); |
738 |
cache_put_cursor(cache_idx, cursor); |
739 |
} |
740 |
|
741 |
/* Process a cached pointer PDU */ |
742 |
void |
743 |
process_cached_pointer_pdu(STREAM s) |
744 |
{ |
745 |
uint16 cache_idx; |
746 |
|
747 |
in_uint16_le(s, cache_idx); |
748 |
ui_set_cursor(cache_get_cursor(cache_idx)); |
749 |
} |
750 |
|
751 |
/* Process a system pointer PDU */ |
752 |
void |
753 |
process_system_pointer_pdu(STREAM s) |
754 |
{ |
755 |
uint16 system_pointer_type; |
756 |
|
757 |
in_uint16(s, system_pointer_type); |
758 |
switch (system_pointer_type) |
759 |
{ |
760 |
case RDP_NULL_POINTER: |
761 |
ui_set_null_cursor(); |
762 |
break; |
763 |
|
764 |
default: |
765 |
unimpl("System pointer message 0x%x\n", system_pointer_type); |
766 |
} |
767 |
} |
768 |
|
769 |
/* Process a pointer PDU */ |
770 |
static void |
771 |
process_pointer_pdu(STREAM s) |
772 |
{ |
773 |
uint16 message_type; |
774 |
uint16 x, y; |
775 |
|
776 |
in_uint16_le(s, message_type); |
777 |
in_uint8s(s, 2); /* pad */ |
778 |
|
779 |
switch (message_type) |
780 |
{ |
781 |
case RDP_POINTER_MOVE: |
782 |
in_uint16_le(s, x); |
783 |
in_uint16_le(s, y); |
784 |
if (s_check(s)) |
785 |
ui_move_pointer(x, y); |
786 |
break; |
787 |
|
788 |
case RDP_POINTER_COLOR: |
789 |
process_colour_pointer_pdu(s); |
790 |
break; |
791 |
|
792 |
case RDP_POINTER_CACHED: |
793 |
process_cached_pointer_pdu(s); |
794 |
break; |
795 |
|
796 |
case RDP_POINTER_SYSTEM: |
797 |
process_system_pointer_pdu(s); |
798 |
break; |
799 |
|
800 |
default: |
801 |
unimpl("Pointer message 0x%x\n", message_type); |
802 |
} |
803 |
} |
804 |
|
805 |
/* Process bitmap updates */ |
806 |
void |
807 |
process_bitmap_updates(STREAM s) |
808 |
{ |
809 |
uint16 num_updates; |
810 |
uint16 left, top, right, bottom, width, height; |
811 |
uint16 cx, cy, bpp, Bpp, compress, bufsize, size; |
812 |
uint8 *data, *bmpdata; |
813 |
int i; |
814 |
|
815 |
in_uint16_le(s, num_updates); |
816 |
|
817 |
for (i = 0; i < num_updates; i++) |
818 |
{ |
819 |
in_uint16_le(s, left); |
820 |
in_uint16_le(s, top); |
821 |
in_uint16_le(s, right); |
822 |
in_uint16_le(s, bottom); |
823 |
in_uint16_le(s, width); |
824 |
in_uint16_le(s, height); |
825 |
in_uint16_le(s, bpp); |
826 |
Bpp = (bpp + 7) / 8; |
827 |
in_uint16_le(s, compress); |
828 |
in_uint16_le(s, bufsize); |
829 |
|
830 |
cx = right - left + 1; |
831 |
cy = bottom - top + 1; |
832 |
|
833 |
DEBUG(("BITMAP_UPDATE(l=%d,t=%d,r=%d,b=%d,w=%d,h=%d,Bpp=%d,cmp=%d)\n", |
834 |
left, top, right, bottom, width, height, Bpp, compress)); |
835 |
|
836 |
if (!compress) |
837 |
{ |
838 |
int y; |
839 |
bmpdata = (uint8 *) xmalloc(width * height * Bpp); |
840 |
for (y = 0; y < height; y++) |
841 |
{ |
842 |
in_uint8a(s, &bmpdata[(height - y - 1) * (width * Bpp)], |
843 |
width * Bpp); |
844 |
} |
845 |
ui_paint_bitmap(left, top, cx, cy, width, height, bmpdata); |
846 |
xfree(bmpdata); |
847 |
continue; |
848 |
} |
849 |
|
850 |
|
851 |
if (compress & 0x400) |
852 |
{ |
853 |
size = bufsize; |
854 |
} |
855 |
else |
856 |
{ |
857 |
in_uint8s(s, 2); /* pad */ |
858 |
in_uint16_le(s, size); |
859 |
in_uint8s(s, 4); /* line_size, final_size */ |
860 |
} |
861 |
in_uint8p(s, data, size); |
862 |
bmpdata = (uint8 *) xmalloc(width * height * Bpp); |
863 |
if (bitmap_decompress(bmpdata, width, height, data, size, Bpp)) |
864 |
{ |
865 |
ui_paint_bitmap(left, top, cx, cy, width, height, bmpdata); |
866 |
} |
867 |
else |
868 |
{ |
869 |
DEBUG_RDP5(("Failed to decompress data\n")); |
870 |
} |
871 |
|
872 |
xfree(bmpdata); |
873 |
} |
874 |
} |
875 |
|
876 |
/* Process a palette update */ |
877 |
void |
878 |
process_palette(STREAM s) |
879 |
{ |
880 |
COLOURENTRY *entry; |
881 |
COLOURMAP map; |
882 |
HCOLOURMAP hmap; |
883 |
int i; |
884 |
|
885 |
in_uint8s(s, 2); /* pad */ |
886 |
in_uint16_le(s, map.ncolours); |
887 |
in_uint8s(s, 2); /* pad */ |
888 |
|
889 |
map.colours = (COLOURENTRY *) xmalloc(sizeof(COLOURENTRY) * map.ncolours); |
890 |
|
891 |
DEBUG(("PALETTE(c=%d)\n", map.ncolours)); |
892 |
|
893 |
for (i = 0; i < map.ncolours; i++) |
894 |
{ |
895 |
entry = &map.colours[i]; |
896 |
in_uint8(s, entry->red); |
897 |
in_uint8(s, entry->green); |
898 |
in_uint8(s, entry->blue); |
899 |
} |
900 |
|
901 |
hmap = ui_create_colourmap(&map); |
902 |
ui_set_colourmap(hmap); |
903 |
|
904 |
xfree(map.colours); |
905 |
} |
906 |
|
907 |
/* Process an update PDU */ |
908 |
static void |
909 |
process_update_pdu(STREAM s) |
910 |
{ |
911 |
uint16 update_type, count; |
912 |
|
913 |
in_uint16_le(s, update_type); |
914 |
|
915 |
switch (update_type) |
916 |
{ |
917 |
case RDP_UPDATE_ORDERS: |
918 |
in_uint8s(s, 2); /* pad */ |
919 |
in_uint16_le(s, count); |
920 |
in_uint8s(s, 2); /* pad */ |
921 |
process_orders(s, count); |
922 |
break; |
923 |
|
924 |
case RDP_UPDATE_BITMAP: |
925 |
process_bitmap_updates(s); |
926 |
break; |
927 |
|
928 |
case RDP_UPDATE_PALETTE: |
929 |
process_palette(s); |
930 |
break; |
931 |
|
932 |
case RDP_UPDATE_SYNCHRONIZE: |
933 |
break; |
934 |
|
935 |
default: |
936 |
unimpl("update %d\n", update_type); |
937 |
} |
938 |
|
939 |
} |
940 |
|
941 |
/* Process a disconnect PDU */ |
942 |
void |
943 |
process_disconnect_pdu(STREAM s, uint32 * ext_disc_reason) |
944 |
{ |
945 |
in_uint32_le(s, *ext_disc_reason); |
946 |
|
947 |
DEBUG(("Received disconnect PDU\n")); |
948 |
} |
949 |
|
950 |
/* Process data PDU */ |
951 |
static BOOL |
952 |
process_data_pdu(STREAM s, uint32 * ext_disc_reason) |
953 |
{ |
954 |
uint8 data_pdu_type; |
955 |
uint8 ctype; |
956 |
uint16 clen; |
957 |
int len; |
958 |
#if 0 |
959 |
int roff, rlen, ret; |
960 |
static struct stream ns; |
961 |
static signed char *dict = 0; |
962 |
#endif |
963 |
|
964 |
in_uint8s(s, 6); /* shareid, pad, streamid */ |
965 |
in_uint16(s, len); |
966 |
in_uint8(s, data_pdu_type); |
967 |
in_uint8(s, ctype); |
968 |
in_uint16(s, clen); |
969 |
clen -= 18; |
970 |
|
971 |
#if 0 |
972 |
if (ctype & 0x20) |
973 |
{ |
974 |
if (!dict) |
975 |
{ |
976 |
dict = (signed char *) malloc(8200 * sizeof(signed char)); |
977 |
dict = (signed char *) memset(dict, 0, 8200 * sizeof(signed char)); |
978 |
} |
979 |
|
980 |
ret = decompress(s->p, clen, ctype, (signed char *) dict, &roff, &rlen); |
981 |
|
982 |
len -= 18; |
983 |
|
984 |
ns.data = xrealloc(ns.data, len); |
985 |
|
986 |
ns.data = (unsigned char *) memcpy(ns.data, (unsigned char *) (dict + roff), len); |
987 |
|
988 |
ns.size = len; |
989 |
ns.end = ns.data + ns.size; |
990 |
ns.p = ns.data; |
991 |
ns.rdp_hdr = ns.p; |
992 |
|
993 |
s = &ns; |
994 |
} |
995 |
#endif |
996 |
|
997 |
switch (data_pdu_type) |
998 |
{ |
999 |
case RDP_DATA_PDU_UPDATE: |
1000 |
process_update_pdu(s); |
1001 |
break; |
1002 |
|
1003 |
case RDP_DATA_PDU_CONTROL: |
1004 |
DEBUG(("Received Control PDU\n")); |
1005 |
break; |
1006 |
|
1007 |
case RDP_DATA_PDU_SYNCHRONISE: |
1008 |
DEBUG(("Received Sync PDU\n")); |
1009 |
break; |
1010 |
|
1011 |
case RDP_DATA_PDU_POINTER: |
1012 |
process_pointer_pdu(s); |
1013 |
break; |
1014 |
|
1015 |
case RDP_DATA_PDU_BELL: |
1016 |
ui_bell(); |
1017 |
break; |
1018 |
|
1019 |
case RDP_DATA_PDU_LOGON: |
1020 |
DEBUG(("Received Logon PDU\n")); |
1021 |
/* User logged on */ |
1022 |
break; |
1023 |
|
1024 |
case RDP_DATA_PDU_DISCONNECT: |
1025 |
process_disconnect_pdu(s, ext_disc_reason); |
1026 |
return True; |
1027 |
|
1028 |
default: |
1029 |
unimpl("data PDU %d\n", data_pdu_type); |
1030 |
} |
1031 |
return False; |
1032 |
} |
1033 |
|
1034 |
/* Process incoming packets */ |
1035 |
void |
1036 |
rdp_main_loop(BOOL * deactivated, uint32 * ext_disc_reason) |
1037 |
{ |
1038 |
uint8 type; |
1039 |
BOOL disc = False; /* True when a disconnect PDU was received */ |
1040 |
STREAM s; |
1041 |
|
1042 |
while ((s = rdp_recv(&type)) != NULL) |
1043 |
{ |
1044 |
switch (type) |
1045 |
{ |
1046 |
case RDP_PDU_DEMAND_ACTIVE: |
1047 |
process_demand_active(s); |
1048 |
*deactivated = False; |
1049 |
break; |
1050 |
|
1051 |
case RDP_PDU_DEACTIVATE: |
1052 |
DEBUG(("RDP_PDU_DEACTIVATE\n")); |
1053 |
*deactivated = True; |
1054 |
break; |
1055 |
|
1056 |
case RDP_PDU_DATA: |
1057 |
disc = process_data_pdu(s, ext_disc_reason); |
1058 |
break; |
1059 |
|
1060 |
case 0: |
1061 |
break; |
1062 |
|
1063 |
default: |
1064 |
unimpl("PDU %d\n", type); |
1065 |
} |
1066 |
|
1067 |
if (disc) |
1068 |
{ |
1069 |
return; |
1070 |
} |
1071 |
} |
1072 |
return; |
1073 |
} |
1074 |
|
1075 |
/* Establish a connection up to the RDP layer */ |
1076 |
BOOL |
1077 |
rdp_connect(char *server, uint32 flags, char *domain, char *password, |
1078 |
char *command, char *directory) |
1079 |
{ |
1080 |
if (!sec_connect(server, g_username)) |
1081 |
return False; |
1082 |
|
1083 |
rdp_send_logon_info(flags, domain, g_username, password, command, directory); |
1084 |
return True; |
1085 |
} |
1086 |
|
1087 |
/* Disconnect from the RDP layer */ |
1088 |
void |
1089 |
rdp_disconnect(void) |
1090 |
{ |
1091 |
sec_disconnect(); |
1092 |
} |