511 lines
12 KiB
C
511 lines
12 KiB
C
/*
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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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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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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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xrdp: A Remote Desktop Protocol server.
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Copyright (C) Jay Sorg 2005-2006
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libxup main file
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*/
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#include "xup.h"
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/******************************************************************************/
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/* returns error */
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int DEFAULT_CC
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lib_recv(struct mod* mod, char* data, int len)
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{
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int rcvd;
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if (mod->sck_closed)
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{
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return 1;
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}
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while (len > 0)
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{
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rcvd = g_tcp_recv(mod->sck, data, len, 0);
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if (rcvd == -1)
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{
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if (g_tcp_last_error_would_block(mod->sck))
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{
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if (mod->server_is_term(mod))
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{
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return 1;
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}
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g_sleep(1);
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}
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else
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{
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return 1;
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}
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}
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else if (rcvd == 0)
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{
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mod->sck_closed = 1;
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return 1;
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}
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else
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{
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data += rcvd;
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len -= rcvd;
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}
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}
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return 0;
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}
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/*****************************************************************************/
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/* returns error */
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int DEFAULT_CC
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lib_send(struct mod* mod, char* data, int len)
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{
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int sent;
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if (mod->sck_closed)
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{
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return 1;
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}
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while (len > 0)
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{
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sent = g_tcp_send(mod->sck, data, len, 0);
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if (sent == -1)
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{
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if (g_tcp_last_error_would_block(mod->sck))
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{
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if (mod->server_is_term(mod))
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{
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return 1;
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}
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g_sleep(1);
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}
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else
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{
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return 1;
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}
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}
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else if (sent == 0)
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{
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mod->sck_closed = 1;
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return 1;
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}
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else
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{
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data += sent;
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len -= sent;
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}
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}
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return 0;
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}
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/******************************************************************************/
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/* return error */
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int DEFAULT_CC
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lib_mod_start(struct mod* mod, int w, int h, int bpp)
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{
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LIB_DEBUG(mod, "in lib_mod_start");
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mod->width = w;
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mod->height = h;
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mod->bpp = bpp;
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LIB_DEBUG(mod, "out lib_mod_start");
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return 0;
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}
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/******************************************************************************/
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/* return error */
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int DEFAULT_CC
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lib_mod_connect(struct mod* mod)
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{
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int error;
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int len;
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int display;
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int i;
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int version;
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int size;
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int code;
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int ok;
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struct stream* s;
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char con_port[256];
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LIB_DEBUG(mod, "in lib_mod_connect");
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/* clear screen */
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mod->server_begin_update(mod);
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mod->server_set_fgcolor(mod, 0);
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mod->server_fill_rect(mod, 0, 0, mod->width, mod->height);
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mod->server_end_update(mod);
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mod->server_msg(mod, "started connecting", 0);
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/* only support 8 and 16 bpp connections from rdp client */
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if (mod->bpp != 8 && mod->bpp != 16)
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{
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mod->server_msg(mod,
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"error - only supporting 8 and 16 bpp rdp connections", 0);
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return 1;
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}
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if (g_strncmp(mod->ip, "", 1) == 0)
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{
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mod->server_msg(mod, "error - no ip set", 0);
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return 1;
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}
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make_stream(s);
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/* if port = -1, use sesman to get port / desktop */
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if (g_strncmp(mod->port, "-1", 2) == 0)
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{
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display = 0;
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error = 0;
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init_stream(s, 8192);
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mod->sck = g_tcp_socket();
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mod->sck_closed = 0;
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mod->server_msg(mod, "connecting to sesman", 0);
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if (g_tcp_connect(mod->sck, mod->ip, "3350") == 0)
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{
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g_tcp_set_non_blocking(mod->sck);
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g_tcp_set_no_delay(mod->sck);
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s_push_layer(s, channel_hdr, 8);
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out_uint16_be(s, 10); // code
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i = g_strlen(mod->username);
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out_uint16_be(s, i);
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out_uint8a(s, mod->username, i);
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i = g_strlen(mod->password);
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out_uint16_be(s, i);
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out_uint8a(s, mod->password, i);
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out_uint16_be(s, mod->width);
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out_uint16_be(s, mod->height);
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out_uint16_be(s, mod->bpp);
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s_mark_end(s);
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s_pop_layer(s, channel_hdr);
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out_uint32_be(s, 0); // version
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out_uint32_be(s, s->end - s->data); // size
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mod->server_msg(mod, "sending login info to sesman", 0);
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error = lib_send(mod, s->data, s->end - s->data);
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if (error == 0)
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{
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init_stream(s, 8192);
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mod->server_msg(mod, "receiving sesman header", 0);
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error = lib_recv(mod, s->data, 8);
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}
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if (error == 0)
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{
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in_uint32_be(s, version);
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in_uint32_be(s, size);
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init_stream(s, 8192);
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mod->server_msg(mod, "receiving sesman data", 0);
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error = lib_recv(mod, s->data, size - 8);
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}
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if (error == 0)
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{
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if (version == 0)
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{
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in_uint16_be(s, code);
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if (code == 3)
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{
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in_uint16_be(s, ok);
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if (ok)
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{
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in_uint16_be(s, display);
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}
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else
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{
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in_uint8s(s, 2);
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mod->server_msg(mod, "error - sesman returned no", 0);
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}
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}
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}
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}
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}
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else
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{
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mod->server_msg(mod, "error - connecting to sesman", 0);
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}
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g_tcp_close(mod->sck);
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if (error != 0 || display == 0)
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{
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mod->server_msg(mod, "error - connection failed", 0);
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free_stream(s);
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return 1;
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}
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mod->server_msg(mod, "sesman started a session", 0);
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g_sprintf(con_port, "%d", 6200 + display);
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}
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else
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{
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g_sprintf(con_port, "%s", mod->port);
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}
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mod->sck = g_tcp_socket();
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mod->sck_closed = 0;
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error = g_tcp_connect(mod->sck, mod->ip, con_port);
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if (error == 0)
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{
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g_tcp_set_non_blocking(mod->sck);
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g_tcp_set_no_delay(mod->sck);
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}
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if (error == 0)
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{
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init_stream(s, 8192);
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s_push_layer(s, iso_hdr, 4);
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out_uint16_le(s, 103);
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out_uint32_le(s, 200);
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out_uint32_le(s, 0);
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out_uint32_le(s, 0);
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out_uint32_le(s, mod->width);
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out_uint32_le(s, mod->height);
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s_mark_end(s);
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len = s->end - s->data;
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s_pop_layer(s, iso_hdr);
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out_uint32_le(s, len);
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lib_send(mod, s->data, len);
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}
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free_stream(s);
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LIB_DEBUG(mod, "out lib_mod_connect error");
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if (error != 0)
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{
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mod->server_msg(mod, "some problem", 0);
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return 1;
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}
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return 0;
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}
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/******************************************************************************/
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/* return error */
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int DEFAULT_CC
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lib_mod_event(struct mod* mod, int msg, long param1, long param2,
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long param3, long param4)
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{
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struct stream* s;
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int len;
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int rv;
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LIB_DEBUG(mod, "in lib_mod_event");
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make_stream(s);
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init_stream(s, 8192);
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s_push_layer(s, iso_hdr, 4);
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out_uint16_le(s, 103);
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out_uint32_le(s, msg);
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out_uint32_le(s, param1);
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out_uint32_le(s, param2);
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out_uint32_le(s, param3);
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out_uint32_le(s, param4);
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s_mark_end(s);
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len = s->end - s->data;
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s_pop_layer(s, iso_hdr);
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out_uint32_le(s, len);
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rv = lib_send(mod, s->data, len);
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free_stream(s);
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LIB_DEBUG(mod, "out lib_mod_event");
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return rv;
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}
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/******************************************************************************/
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/* return error */
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int DEFAULT_CC
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lib_mod_signal(struct mod* mod)
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{
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struct stream* s;
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int num_orders;
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int index;
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int rv;
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int len;
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int type;
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int x;
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int y;
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int cx;
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int cy;
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int fgcolor;
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int opcode;
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int width;
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int height;
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int srcx;
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int srcy;
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int len_bmpdata;
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int style;
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int x1;
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int y1;
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int x2;
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int y2;
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char* bmpdata;
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char cur_data[32 * (32 * 3)];
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char cur_mask[32 * (32 / 8)];
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LIB_DEBUG(mod, "in lib_mod_signal");
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make_stream(s);
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init_stream(s, 8192);
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rv = lib_recv(mod, s->data, 8);
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if (rv == 0)
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{
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in_uint16_le(s, type);
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in_uint16_le(s, num_orders);
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in_uint32_le(s, len);
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if (type == 1)
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{
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init_stream(s, len);
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rv = lib_recv(mod, s->data, len);
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if (rv == 0)
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{
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for (index = 0; index < num_orders; index++)
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{
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in_uint16_le(s, type);
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switch (type)
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{
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case 1: /* server_begin_update */
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rv = mod->server_begin_update(mod);
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break;
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case 2: /* server_end_update */
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rv = mod->server_end_update(mod);
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break;
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case 3: /* server_fill_rect */
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in_sint16_le(s, x);
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in_sint16_le(s, y);
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in_uint16_le(s, cx);
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in_uint16_le(s, cy);
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rv = mod->server_fill_rect(mod, x, y, cx, cy);
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break;
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case 4: /* server_screen_blt */
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in_sint16_le(s, x);
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in_sint16_le(s, y);
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in_uint16_le(s, cx);
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in_uint16_le(s, cy);
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in_sint16_le(s, srcx);
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in_sint16_le(s, srcy);
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rv = mod->server_screen_blt(mod, x, y, cx, cy, srcx, srcy);
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break;
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case 5: /* server_paint_rect */
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in_sint16_le(s, x);
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in_sint16_le(s, y);
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in_uint16_le(s, cx);
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in_uint16_le(s, cy);
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in_uint32_le(s, len_bmpdata);
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in_uint8p(s, bmpdata, len_bmpdata);
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in_uint16_le(s, width);
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in_uint16_le(s, height);
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in_sint16_le(s, srcx);
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in_sint16_le(s, srcy);
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rv = mod->server_paint_rect(mod, x, y, cx, cy,
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bmpdata, width, height,
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srcx, srcy);
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break;
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case 10: /* server_set_clip */
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in_sint16_le(s, x);
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in_sint16_le(s, y);
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in_uint16_le(s, cx);
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in_uint16_le(s, cy);
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rv = mod->server_set_clip(mod, x, y, cx, cy);
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break;
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case 11: /* server_reset_clip */
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rv = mod->server_reset_clip(mod);
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break;
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case 12: /* server_set_fgcolor */
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in_uint32_le(s, fgcolor);
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rv = mod->server_set_fgcolor(mod, fgcolor);
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break;
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case 14:
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in_uint16_le(s, opcode);
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rv = mod->server_set_opcode(mod, opcode);
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break;
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case 17:
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in_uint16_le(s, style);
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in_uint16_le(s, width);
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rv = mod->server_set_pen(mod, style, width);
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break;
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case 18:
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in_sint16_le(s, x1);
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in_sint16_le(s, y1);
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in_sint16_le(s, x2);
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in_sint16_le(s, y2);
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rv = mod->server_draw_line(mod, x1, y1, x2, y2);
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break;
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case 19:
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in_sint16_le(s, x);
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in_sint16_le(s, y);
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in_uint8a(s, cur_data, 32 * (32 * 3));
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in_uint8a(s, cur_mask, 32 * (32 / 8));
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rv = mod->server_set_cursor(mod, x, y, cur_data, cur_mask);
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break;
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default:
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rv = 1;
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break;
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}
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if (rv != 0)
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{
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break;
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}
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}
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}
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}
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}
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free_stream(s);
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LIB_DEBUG(mod, "out lib_mod_signal");
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return rv;
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}
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/******************************************************************************/
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/* return error */
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int DEFAULT_CC
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lib_mod_end(struct mod* mod)
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{
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return 0;
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}
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/******************************************************************************/
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/* return error */
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int DEFAULT_CC
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lib_mod_set_param(struct mod* mod, char* name, char* value)
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{
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if (g_strncasecmp(name, "username", 8) == 0)
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{
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g_strncpy(mod->username, value, 255);
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}
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else if (g_strncasecmp(name, "password", 8) == 0)
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{
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g_strncpy(mod->password, value, 255);
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}
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else if (g_strncasecmp(name, "ip", 2) == 0)
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{
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g_strncpy(mod->ip, value, 255);
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}
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else if (g_strncasecmp(name, "port", 4) == 0)
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{
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g_strncpy(mod->port, value, 255);
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}
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return 0;
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}
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/******************************************************************************/
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struct mod* EXPORT_CC
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mod_init(void)
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{
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struct mod* mod;
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mod = (struct mod*)g_malloc(sizeof(struct mod), 1);
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mod->size = sizeof(struct mod);
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mod->handle = (long)mod;
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mod->mod_connect = lib_mod_connect;
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mod->mod_start = lib_mod_start;
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mod->mod_event = lib_mod_event;
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mod->mod_signal = lib_mod_signal;
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mod->mod_end = lib_mod_end;
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mod->mod_set_param = lib_mod_set_param;
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return mod;
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}
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/******************************************************************************/
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int EXPORT_CC
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mod_exit(struct mod* mod)
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{
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if (mod == 0)
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{
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return 0;
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}
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g_tcp_close(mod->sck);
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g_free(mod);
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return 0;
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}
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