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540 lines
16 KiB
540 lines
16 KiB
20 years ago
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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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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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Copyright (C) Jay Sorg 2004
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rdp layer
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*/
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#include "xrdp.h"
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char unknown1[172] =
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{ 0xff, 0x02, 0xb6, 0x00, 0x28, 0x00, 0x00, 0x00,
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0x27, 0x00, 0x27, 0x00, 0x03, 0x00, 0x04, 0x00,
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0x00, 0x00, 0x26, 0x00, 0x01, 0x00, 0x1e, 0x00,
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0x02, 0x00, 0x1f, 0x00, 0x03, 0x00, 0x1d, 0x00,
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0x04, 0x00, 0x27, 0x00, 0x05, 0x00, 0x0b, 0x00,
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0x06, 0x00, 0x28, 0x00, 0x08, 0x00, 0x21, 0x00,
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0x09, 0x00, 0x20, 0x00, 0x0a, 0x00, 0x22, 0x00,
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0x0b, 0x00, 0x25, 0x00, 0x0c, 0x00, 0x24, 0x00,
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0x0d, 0x00, 0x23, 0x00, 0x0e, 0x00, 0x19, 0x00,
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0x0f, 0x00, 0x16, 0x00, 0x10, 0x00, 0x15, 0x00,
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0x11, 0x00, 0x1c, 0x00, 0x12, 0x00, 0x1b, 0x00,
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0x13, 0x00, 0x1a, 0x00, 0x14, 0x00, 0x17, 0x00,
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0x15, 0x00, 0x18, 0x00, 0x16, 0x00, 0x0e, 0x00,
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0x18, 0x00, 0x0c, 0x00, 0x19, 0x00, 0x0d, 0x00,
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0x1a, 0x00, 0x12, 0x00, 0x1b, 0x00, 0x14, 0x00,
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0x1f, 0x00, 0x13, 0x00, 0x20, 0x00, 0x00, 0x00,
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0x21, 0x00, 0x0a, 0x00, 0x22, 0x00, 0x06, 0x00,
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0x23, 0x00, 0x07, 0x00, 0x24, 0x00, 0x08, 0x00,
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0x25, 0x00, 0x09, 0x00, 0x26, 0x00, 0x04, 0x00,
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0x27, 0x00, 0x03, 0x00, 0x28, 0x00, 0x02, 0x00,
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0x29, 0x00, 0x01, 0x00, 0x2a, 0x00, 0x05, 0x00,
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0x2b, 0x00, 0x2a, 0x00 };
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/*****************************************************************************/
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struct xrdp_rdp* xrdp_rdp_create(struct xrdp_process* owner)
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{
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struct xrdp_rdp* self;
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self = (struct xrdp_rdp*)g_malloc(sizeof(struct xrdp_rdp), 1);
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self->pro_layer = owner;
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self->in_s = &owner->in_s;
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self->out_s = &owner->out_s;
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self->share_id = 66538;
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self->sec_layer = xrdp_sec_create(self);
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return self;
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}
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/*****************************************************************************/
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void xrdp_rdp_delete(struct xrdp_rdp* self)
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{
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xrdp_sec_delete(self->sec_layer);
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g_free(self);
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}
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/*****************************************************************************/
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int xrdp_rdp_init(struct xrdp_rdp* self, int len)
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{
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if (xrdp_sec_init(self->sec_layer, len + 6) != 0)
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return 1;
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s_push_layer(self->out_s, rdp_hdr, 6);
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return 0;
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}
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/*****************************************************************************/
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int xrdp_rdp_init_data(struct xrdp_rdp* self, int len)
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{
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if (xrdp_sec_init(self->sec_layer, len + 18) != 0)
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return 1;
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s_push_layer(self->out_s, rdp_hdr, 18);
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return 0;
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}
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/*****************************************************************************/
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int xrdp_rdp_recv(struct xrdp_rdp* self, int* code)
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{
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int error;
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int len;
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int pdu_code;
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if (self->next_packet == 0 || self->next_packet >= self->in_s->end)
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{
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error = xrdp_sec_recv(self->sec_layer);
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if (error == -1) /* special code for send demand active */
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{
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self->next_packet = 0;
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*code = -1;
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return 0;
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}
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if (error != 0)
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return 1;
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self->next_packet = self->in_s->p;
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}
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else
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self->in_s->p = self->next_packet;
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in_uint16_le(self->in_s, len);
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if (len == 0x8000)
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{
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self->next_packet += 8;
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*code = 0;
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return 0;
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}
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in_uint16_le(self->in_s, pdu_code);
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*code = pdu_code & 0xf;
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in_uint8s(self->in_s, 2); /* mcs user id */
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self->next_packet += len;
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return 0;
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}
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/*****************************************************************************/
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int xrdp_rdp_send(struct xrdp_rdp* self, int pdu_type)
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{
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int len;
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s_pop_layer(self->out_s, rdp_hdr);
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len = self->out_s->end - self->out_s->p;
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out_uint16_le(self->out_s, len);
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out_uint16_le(self->out_s, 0x10 | pdu_type);
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out_uint16_le(self->out_s, self->mcs_channel);
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if (xrdp_sec_send(self->sec_layer, 0) != 0)
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return 1;
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return 0;
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}
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/*****************************************************************************/
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int xrdp_rdp_send_data(struct xrdp_rdp* self, int data_pdu_type)
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{
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int len;
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s_pop_layer(self->out_s, rdp_hdr);
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len = self->out_s->end - self->out_s->p;
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out_uint16_le(self->out_s, len);
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out_uint16_le(self->out_s, 0x10 | RDP_PDU_DATA);
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out_uint16_le(self->out_s, self->mcs_channel);
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out_uint32_le(self->out_s, self->share_id);
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out_uint8(self->out_s, 0);
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out_uint8(self->out_s, 1);
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out_uint16_le(self->out_s, len - 14);
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out_uint8(self->out_s, data_pdu_type);
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out_uint8(self->out_s, 0);
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out_uint16_le(self->out_s, 0);
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if (xrdp_sec_send(self->sec_layer, 0) != 0)
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return 1;
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return 0;
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}
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/*****************************************************************************/
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int xrdp_rdp_parse_client_mcs_data(struct xrdp_rdp* self)
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{
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struct stream* p;
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int i;
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p = &self->sec_layer->client_mcs_data;
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p->p = p->data;
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in_uint8s(p, 31);
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in_uint16_le(p, self->width);
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in_uint16_le(p, self->height);
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in_uint8s(p, 120);
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self->bpp = 8;
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in_uint16_le(p, i);
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switch (i)
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{
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case 0xca01:
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in_uint8s(p, 6);
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in_uint8(p, i);
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if (i > 8)
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self->bpp = i;
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break;
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case 0xca02:
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self->bpp = 15;
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break;
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case 0xca03:
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self->bpp = 16;
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break;
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case 0xca04:
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self->bpp = 24;
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break;
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}
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p->p = p->data;
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DEBUG(("client width %d, client height %d bpp %d\n\r",
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self->width, self->height, self->bpp));
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return 0;
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}
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/*****************************************************************************/
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int xrdp_rdp_incoming(struct xrdp_rdp* self)
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{
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DEBUG(("in xrdp_rdp_incoming\n"));
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if (xrdp_sec_incoming(self->sec_layer) != 0)
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return 1;
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self->mcs_channel = self->sec_layer->mcs_layer->userid +
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MCS_USERCHANNEL_BASE;
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xrdp_rdp_parse_client_mcs_data(self);
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DEBUG(("out xrdp_rdp_incoming mcs channel %d\n", self->mcs_channel));
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return 0;
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}
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/*****************************************************************************/
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int xrdp_rdp_send_demand_active(struct xrdp_rdp* self)
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{
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if (xrdp_rdp_init(self, 512) != 0)
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return 1;
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out_uint32_le(self->out_s, self->share_id);
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out_uint32_be(self->out_s, 0x04000401);
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out_uint32_be(self->out_s, 0x524e5300);
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out_uint32_be(self->out_s, 0x08000000);
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out_uint32_be(self->out_s, 0x09000800);
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out_uint16_le(self->out_s, self->mcs_channel);
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out_uint16_be(self->out_s, 0xb5e2);
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/* Output general capability set */
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out_uint16_le(self->out_s, RDP_CAPSET_GENERAL); /* 1 */
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out_uint16_le(self->out_s, RDP_CAPLEN_GENERAL); /* 24(0x18) */
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out_uint16_le(self->out_s, 1); /* OS major type */
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out_uint16_le(self->out_s, 3); /* OS minor type */
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out_uint16_le(self->out_s, 0x200); /* Protocol version */
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out_uint16_le(self->out_s, 0); /* pad */
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out_uint16_le(self->out_s, 0); /* Compression types */
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out_uint16_le(self->out_s, 0); /* pad */
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out_uint16_le(self->out_s, 0); /* Update capability */
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out_uint16_le(self->out_s, 0); /* Remote unshare capability */
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out_uint16_le(self->out_s, 0); /* Compression level */
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out_uint16_le(self->out_s, 0); /* Pad */
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/* Output bitmap capability set */
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out_uint16_le(self->out_s, RDP_CAPSET_BITMAP); /* 2 */
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out_uint16_le(self->out_s, RDP_CAPLEN_BITMAP); /* 28(0x1c) */
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out_uint16_le(self->out_s, self->bpp); /* Preferred BPP */
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out_uint16_le(self->out_s, 1); /* Receive 1 BPP */
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out_uint16_le(self->out_s, 1); /* Receive 4 BPP */
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out_uint16_le(self->out_s, 1); /* Receive 8 BPP */
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out_uint16_le(self->out_s, self->width); /* width */
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out_uint16_le(self->out_s, self->height); /* height */
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out_uint16_le(self->out_s, 0); /* Pad */
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out_uint16_le(self->out_s, 1); /* Allow resize */
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out_uint16_le(self->out_s, 1); /* bitmap compression */
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out_uint16_le(self->out_s, 0); /* unknown */
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out_uint16_le(self->out_s, 0); /* unknown */
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out_uint16_le(self->out_s, 0); /* pad */
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/* Output ? */
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out_uint16_le(self->out_s, 14);
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out_uint16_le(self->out_s, 4);
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/* Output order capability set */
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out_uint16_le(self->out_s, RDP_CAPSET_ORDER); /* 3 */
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out_uint16_le(self->out_s, RDP_CAPLEN_ORDER); /* 88(0x58) */
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out_uint8s(self->out_s, 16);
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out_uint32_be(self->out_s, 0x40420f00);
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out_uint16_le(self->out_s, 1); /* Cache X granularity */
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out_uint16_le(self->out_s, 20); /* Cache Y granularity */
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out_uint16_le(self->out_s, 0); /* Pad */
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out_uint16_le(self->out_s, 1); /* Max order level */
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out_uint16_le(self->out_s, 0x2f); /* Number of fonts */
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out_uint16_le(self->out_s, 0x22); /* Capability flags */
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/* caps */
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out_uint8(self->out_s, 1); /* dest blt */
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out_uint8(self->out_s, 1); /* pat blt */
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out_uint8(self->out_s, 1); /* screen blt */
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out_uint8(self->out_s, 1); /* memblt */
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 0);
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out_uint8(self->out_s, 0);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 1);
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out_uint8(self->out_s, 0);
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out_uint8(self->out_s, 0);
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out_uint8(self->out_s, 0);
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out_uint16_le(self->out_s, 0x6a1);
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out_uint8s(self->out_s, 6); /* ? */
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out_uint32_le(self->out_s, 0x0f4240); /* desk save */
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out_uint32_le(self->out_s, 0); /* ? */
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out_uint32_le(self->out_s, 0); /* ? */
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/* Output color cache capability set */
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out_uint16_le(self->out_s, RDP_CAPSET_COLCACHE);
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out_uint16_le(self->out_s, RDP_CAPLEN_COLCACHE);
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out_uint16_le(self->out_s, 6); /* cache size */
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out_uint16_le(self->out_s, 0); /* pad */
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/* Output pointer capability set */
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out_uint16_le(self->out_s, RDP_CAPSET_POINTER);
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out_uint16_le(self->out_s, RDP_CAPLEN_POINTER);
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out_uint16_le(self->out_s, 1); /* Colour pointer */
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out_uint16_le(self->out_s, 0x19); /* Cache size */
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/* Output ? */
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out_uint16_le(self->out_s, 0xd);
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out_uint16_le(self->out_s, 0x58); /* 88 */
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out_uint8(self->out_s, 1);
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out_uint8s(self->out_s, 83);
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s_mark_end(self->out_s);
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if (xrdp_rdp_send(self, RDP_PDU_DEMAND_ACTIVE) != 0)
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return 1;
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return 0;
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}
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/*****************************************************************************/
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int xrdp_rdp_process_confirm_active(struct xrdp_rdp* self)
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{
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return 0;
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}
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/*****************************************************************************/
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int xrdp_rdp_process_data_pointer(struct xrdp_rdp* self)
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{
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return 0;
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}
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/*****************************************************************************/
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/* RDP_INPUT_SYNCHRONIZE */
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int xrdp_rdp_process_input_sync(struct xrdp_rdp* self, int device_flags,
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int key_flags)
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||
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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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/*****************************************************************************/
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/* RDP_INPUT_SCANCODE */
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int xrdp_rdp_process_input_scancode(struct xrdp_rdp* self, int device_flags,
|
||
|
int ext_flags, int scan_code)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
/* RDP_INPUT_MOUSE */
|
||
|
int xrdp_rdp_process_input_mouse(struct xrdp_rdp* self, int device_flags,
|
||
|
int x, int y)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
/* RDP_DATA_PDU_INPUT */
|
||
|
int xrdp_rdp_process_data_input(struct xrdp_rdp* self)
|
||
|
{
|
||
|
int num_events;
|
||
|
int index;
|
||
|
int msg_type;
|
||
|
int device_flags;
|
||
|
int param1;
|
||
|
int param2;
|
||
|
|
||
|
in_uint16_le(self->in_s, num_events);
|
||
|
in_uint8s(self->in_s, 2); /* pad */
|
||
|
for (index = 0; index < num_events; index++)
|
||
|
{
|
||
|
in_uint8s(self->in_s, 4); /* time */
|
||
|
in_uint16_le(self->in_s, msg_type);
|
||
|
in_uint16_le(self->in_s, device_flags);
|
||
|
in_uint16_le(self->in_s, param1);
|
||
|
in_uint16_le(self->in_s, param2);
|
||
|
switch (msg_type)
|
||
|
{
|
||
|
case RDP_INPUT_SYNCHRONIZE: /* 0 */
|
||
|
xrdp_rdp_process_input_sync(self, device_flags, param1);
|
||
|
break;
|
||
|
case RDP_INPUT_SCANCODE: /* 4 */
|
||
|
xrdp_rdp_process_input_scancode(self, device_flags, param1, param2);
|
||
|
break;
|
||
|
case RDP_INPUT_MOUSE: /* 8001 */
|
||
|
xrdp_rdp_process_input_mouse(self, device_flags, param1, param2);
|
||
|
break;
|
||
|
default:
|
||
|
g_printf("unknown in xrdp_rdp_process_data_input\n");
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
int xrdp_rdp_send_synchronise(struct xrdp_rdp* self)
|
||
|
{
|
||
|
if (xrdp_rdp_init_data(self, 4) != 0)
|
||
|
return 1;
|
||
|
out_uint16_le(self->out_s, 1);
|
||
|
out_uint16_le(self->out_s, 1002);
|
||
|
s_mark_end(self->out_s);
|
||
|
if (xrdp_rdp_send_data(self, RDP_DATA_PDU_SYNCHRONISE) != 0)
|
||
|
return 1;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
int xrdp_rdp_send_control(struct xrdp_rdp* self, int action)
|
||
|
{
|
||
|
if (xrdp_rdp_init_data(self, 8) != 0)
|
||
|
return 1;
|
||
|
out_uint16_le(self->out_s, action);
|
||
|
out_uint16_le(self->out_s, 0); /* userid */
|
||
|
out_uint32_le(self->out_s, 1002); /* control id */
|
||
|
s_mark_end(self->out_s);
|
||
|
if (xrdp_rdp_send_data(self, RDP_DATA_PDU_CONTROL) != 0)
|
||
|
return 1;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
int xrdp_rdp_process_data_control(struct xrdp_rdp* self)
|
||
|
{
|
||
|
int action;
|
||
|
|
||
|
in_uint16_le(self->in_s, action);
|
||
|
in_uint8s(self->in_s, 2); /* user id */
|
||
|
in_uint8s(self->in_s, 4); /* control id */
|
||
|
if (action == RDP_CTL_REQUEST_CONTROL)
|
||
|
{
|
||
|
xrdp_rdp_send_synchronise(self);
|
||
|
xrdp_rdp_send_control(self, RDP_CTL_COOPERATE);
|
||
|
xrdp_rdp_send_control(self, RDP_CTL_GRANT_CONTROL);
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
int xrdp_rdp_process_data_sync(struct xrdp_rdp* self)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
int xrdp_rdp_process_screen_update(struct xrdp_rdp* self)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
int xrdp_rdp_send_unknown1(struct xrdp_rdp* self)
|
||
|
{
|
||
|
if (xrdp_rdp_init_data(self, 300) != 0)
|
||
|
return 1;
|
||
|
out_uint8a(self->out_s, unknown1, 172);
|
||
|
s_mark_end(self->out_s);
|
||
|
if (xrdp_rdp_send_data(self, 0x28) != 0)
|
||
|
return 1;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
int xrdp_rdp_process_data_font(struct xrdp_rdp* self)
|
||
|
{
|
||
|
int seq;
|
||
|
|
||
|
in_uint8s(self->in_s, 2); /* num of fonts */
|
||
|
in_uint8s(self->in_s, 2); // unknown
|
||
|
in_uint16_le(self->in_s, seq);
|
||
|
/* 419 client sends Seq 1, then 2 */
|
||
|
/* 2600 clients sends only Seq 3 */
|
||
|
if (seq == 2 || seq == 3) /* after second font message, we are up and */
|
||
|
{ /* running */
|
||
|
xrdp_rdp_send_unknown1(self);
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
/* RDP_PDU_DATA */
|
||
|
int xrdp_rdp_process_data(struct xrdp_rdp* self)
|
||
|
{
|
||
|
int len;
|
||
|
int data_type;
|
||
|
int ctype;
|
||
|
int clen;
|
||
|
|
||
|
in_uint8s(self->in_s, 6);
|
||
|
in_uint16_le(self->in_s, len);
|
||
|
in_uint8(self->in_s, data_type);
|
||
|
in_uint8(self->in_s, ctype);
|
||
|
in_uint16_le(self->in_s, clen);
|
||
|
DEBUG(("xrdp_rdp_process_data code %d\n", data_type));
|
||
|
switch (data_type)
|
||
|
{
|
||
|
case RDP_DATA_PDU_POINTER: /* 27 */
|
||
|
xrdp_rdp_process_data_pointer(self);
|
||
|
break;
|
||
|
case RDP_DATA_PDU_INPUT: /* 28 */
|
||
|
xrdp_rdp_process_data_input(self);
|
||
|
break;
|
||
|
case RDP_DATA_PDU_CONTROL: /* 20 */
|
||
|
xrdp_rdp_process_data_control(self);
|
||
|
break;
|
||
|
case RDP_DATA_PDU_SYNCHRONISE: /* 31 */
|
||
|
xrdp_rdp_process_data_sync(self);
|
||
|
break;
|
||
|
case 33: /* 33 ?? */
|
||
|
xrdp_rdp_process_screen_update(self);
|
||
|
break;
|
||
|
case 36: /* 36 ?? */
|
||
|
return 1;
|
||
|
break;
|
||
|
case RDP_DATA_PDU_FONT2: /* 39 */
|
||
|
xrdp_rdp_process_data_font(self);
|
||
|
break;
|
||
|
default:
|
||
|
g_printf("unknown in xrdp_rdp_process_data\n");
|
||
|
break;
|
||
|
}
|
||
|
return 0;
|
||
|
}
|