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/* -*- c-basic-offset: 8 -*- |
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rdesktop: A Remote Desktop Protocol client. |
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Copyright (C) Matthew Chapman 1999-2005 |
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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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/* |
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Here are some resources, for your IRP hacking pleasure: |
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|
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http://cvs.sourceforge.net/viewcvs.py/mingw/w32api/include/ddk/winddk.h?view=markup |
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|
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http://win32.mvps.org/ntfs/streams.cpp |
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|
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http://www.acc.umu.se/~bosse/ntifs.h |
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|
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http://undocumented.ntinternals.net/UserMode/Undocumented%20Functions/NT%20Objects/File/ |
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|
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http://us1.samba.org/samba/ftp/specs/smb-nt01.txt |
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|
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http://www.osronline.com/ |
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*/ |
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|
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#include <unistd.h> |
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#include <sys/types.h> |
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#include <sys/time.h> |
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#include <dirent.h> /* opendir, closedir, readdir */ |
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#include <time.h> |
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#include <errno.h> |
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#include "rdesktop.h" |
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|
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#define IRP_MJ_CREATE 0x00 |
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#define IRP_MJ_CLOSE 0x02 |
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#define IRP_MJ_READ 0x03 |
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#define IRP_MJ_WRITE 0x04 |
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#define IRP_MJ_QUERY_INFORMATION 0x05 |
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#define IRP_MJ_SET_INFORMATION 0x06 |
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#define IRP_MJ_QUERY_VOLUME_INFORMATION 0x0a |
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#define IRP_MJ_DIRECTORY_CONTROL 0x0c |
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#define IRP_MJ_DEVICE_CONTROL 0x0e |
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#define IRP_MJ_LOCK_CONTROL 0x11 |
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|
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#define IRP_MN_QUERY_DIRECTORY 0x01 |
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#define IRP_MN_NOTIFY_CHANGE_DIRECTORY 0x02 |
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|
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extern char g_hostname[16]; |
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extern DEVICE_FNS serial_fns; |
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extern DEVICE_FNS printer_fns; |
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extern DEVICE_FNS parallel_fns; |
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extern DEVICE_FNS disk_fns; |
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extern FILEINFO g_fileinfo[]; |
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extern BOOL g_notify_stamp; |
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|
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static VCHANNEL *rdpdr_channel; |
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|
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/* If select() times out, the request for the device with handle g_min_timeout_fd is aborted */ |
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NTHANDLE g_min_timeout_fd; |
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uint32 g_num_devices; |
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|
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/* Table with information about rdpdr devices */ |
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RDPDR_DEVICE g_rdpdr_device[RDPDR_MAX_DEVICES]; |
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char *g_rdpdr_clientname = NULL; |
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|
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/* Used to store incoming io request, until they are ready to be completed */ |
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/* using a linked list ensures that they are processed in the right order, */ |
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/* if multiple ios are being done on the same fd */ |
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struct async_iorequest |
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{ |
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uint32 fd, major, minor, offset, device, id, length, partial_len; |
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long timeout, /* Total timeout */ |
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itv_timeout; /* Interval timeout (between serial characters) */ |
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uint8 *buffer; |
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DEVICE_FNS *fns; |
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|
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struct async_iorequest *next; /* next element in list */ |
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}; |
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|
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struct async_iorequest *g_iorequest; |
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|
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/* Return device_id for a given handle */ |
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int |
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get_device_index(NTHANDLE handle) |
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{ |
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int i; |
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for (i = 0; i < RDPDR_MAX_DEVICES; i++) |
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{ |
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if (g_rdpdr_device[i].handle == handle) |
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return i; |
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} |
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return -1; |
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} |
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|
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/* Converts a windows path to a unix path */ |
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void |
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convert_to_unix_filename(char *filename) |
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{ |
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char *p; |
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|
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while ((p = strchr(filename, '\\'))) |
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{ |
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*p = '/'; |
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} |
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} |
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|
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static BOOL |
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rdpdr_handle_ok(int device, int handle) |
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{ |
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switch (g_rdpdr_device[device].device_type) |
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{ |
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case DEVICE_TYPE_PARALLEL: |
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case DEVICE_TYPE_SERIAL: |
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case DEVICE_TYPE_PRINTER: |
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case DEVICE_TYPE_SCARD: |
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if (g_rdpdr_device[device].handle != handle) |
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return False; |
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break; |
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case DEVICE_TYPE_DISK: |
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if (g_fileinfo[handle].device_id != device) |
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return False; |
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break; |
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} |
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return True; |
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} |
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|
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/* Add a new io request to the table containing pending io requests so it won't block rdesktop */ |
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static BOOL |
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add_async_iorequest(uint32 device, uint32 file, uint32 id, uint32 major, uint32 length, |
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DEVICE_FNS * fns, uint32 total_timeout, uint32 interval_timeout, uint8 * buffer, |
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uint32 offset) |
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{ |
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struct async_iorequest *iorq; |
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|
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if (g_iorequest == NULL) |
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{ |
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g_iorequest = (struct async_iorequest *) xmalloc(sizeof(struct async_iorequest)); |
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if (!g_iorequest) |
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return False; |
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g_iorequest->fd = 0; |
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g_iorequest->next = NULL; |
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} |
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|
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iorq = g_iorequest; |
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|
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while (iorq->fd != 0) |
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{ |
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/* create new element if needed */ |
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if (iorq->next == NULL) |
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{ |
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iorq->next = |
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(struct async_iorequest *) xmalloc(sizeof(struct async_iorequest)); |
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if (!iorq->next) |
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return False; |
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iorq->next->fd = 0; |
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iorq->next->next = NULL; |
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} |
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iorq = iorq->next; |
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} |
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iorq->device = device; |
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iorq->fd = file; |
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iorq->id = id; |
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iorq->major = major; |
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iorq->length = length; |
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iorq->partial_len = 0; |
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iorq->fns = fns; |
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iorq->timeout = total_timeout; |
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iorq->itv_timeout = interval_timeout; |
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iorq->buffer = buffer; |
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iorq->offset = offset; |
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return True; |
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} |
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|
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static void |
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rdpdr_send_connect(void) |
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{ |
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uint8 magic[4] = "rDCC"; |
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STREAM s; |
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|
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s = channel_init(rdpdr_channel, 12); |
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out_uint8a(s, magic, 4); |
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out_uint16_le(s, 1); /* unknown */ |
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out_uint16_le(s, 5); |
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out_uint32_be(s, 0x815ed39d); /* IP address (use 127.0.0.1) 0x815ed39d */ |
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s_mark_end(s); |
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channel_send(s, rdpdr_channel); |
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} |
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|
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|
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static void |
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rdpdr_send_name(void) |
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{ |
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uint8 magic[4] = "rDNC"; |
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STREAM s; |
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uint32 hostlen; |
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|
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if (NULL == g_rdpdr_clientname) |
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{ |
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g_rdpdr_clientname = g_hostname; |
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} |
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hostlen = (strlen(g_rdpdr_clientname) + 1) * 2; |
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|
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s = channel_init(rdpdr_channel, 16 + hostlen); |
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out_uint8a(s, magic, 4); |
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out_uint16_le(s, 0x63); /* unknown */ |
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out_uint16_le(s, 0x72); |
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out_uint32(s, 0); |
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out_uint32_le(s, hostlen); |
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rdp_out_unistr(s, g_rdpdr_clientname, hostlen - 2); |
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s_mark_end(s); |
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channel_send(s, rdpdr_channel); |
222 |
} |
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|
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/* Returns the size of the payload of the announce packet */ |
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static int |
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announcedata_size() |
227 |
{ |
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int size, i; |
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PRINTER *printerinfo; |
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|
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size = 8; /* static announce size */ |
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size += g_num_devices * 0x14; |
233 |
|
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for (i = 0; i < g_num_devices; i++) |
235 |
{ |
236 |
if (g_rdpdr_device[i].device_type == DEVICE_TYPE_PRINTER) |
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{ |
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printerinfo = (PRINTER *) g_rdpdr_device[i].pdevice_data; |
239 |
printerinfo->bloblen = |
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printercache_load_blob(printerinfo->printer, &(printerinfo->blob)); |
241 |
|
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size += 0x18; |
243 |
size += 2 * strlen(printerinfo->driver) + 2; |
244 |
size += 2 * strlen(printerinfo->printer) + 2; |
245 |
size += printerinfo->bloblen; |
246 |
} |
247 |
} |
248 |
|
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return size; |
250 |
} |
251 |
|
252 |
static void |
253 |
rdpdr_send_available(void) |
254 |
{ |
255 |
|
256 |
uint8 magic[4] = "rDAD"; |
257 |
uint32 driverlen, printerlen, bloblen; |
258 |
int i; |
259 |
STREAM s; |
260 |
PRINTER *printerinfo; |
261 |
|
262 |
s = channel_init(rdpdr_channel, announcedata_size()); |
263 |
out_uint8a(s, magic, 4); |
264 |
out_uint32_le(s, g_num_devices); |
265 |
|
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for (i = 0; i < g_num_devices; i++) |
267 |
{ |
268 |
out_uint32_le(s, g_rdpdr_device[i].device_type); |
269 |
out_uint32_le(s, i); /* RDP Device ID */ |
270 |
/* Is it possible to use share names longer than 8 chars? |
271 |
/astrand */ |
272 |
out_uint8p(s, g_rdpdr_device[i].name, 8); |
273 |
|
274 |
switch (g_rdpdr_device[i].device_type) |
275 |
{ |
276 |
case DEVICE_TYPE_PRINTER: |
277 |
printerinfo = (PRINTER *) g_rdpdr_device[i].pdevice_data; |
278 |
|
279 |
driverlen = 2 * strlen(printerinfo->driver) + 2; |
280 |
printerlen = 2 * strlen(printerinfo->printer) + 2; |
281 |
bloblen = printerinfo->bloblen; |
282 |
|
283 |
out_uint32_le(s, 24 + driverlen + printerlen + bloblen); /* length of extra info */ |
284 |
out_uint32_le(s, printerinfo->default_printer ? 2 : 0); |
285 |
out_uint8s(s, 8); /* unknown */ |
286 |
out_uint32_le(s, driverlen); |
287 |
out_uint32_le(s, printerlen); |
288 |
out_uint32_le(s, bloblen); |
289 |
rdp_out_unistr(s, printerinfo->driver, driverlen - 2); |
290 |
rdp_out_unistr(s, printerinfo->printer, printerlen - 2); |
291 |
out_uint8a(s, printerinfo->blob, bloblen); |
292 |
|
293 |
if (printerinfo->blob) |
294 |
xfree(printerinfo->blob); /* Blob is sent twice if reconnecting */ |
295 |
break; |
296 |
default: |
297 |
out_uint32(s, 0); |
298 |
} |
299 |
} |
300 |
#if 0 |
301 |
out_uint32_le(s, 0x20); /* Device type 0x20 - smart card */ |
302 |
out_uint32_le(s, 0); |
303 |
out_uint8p(s, "SCARD", 5); |
304 |
out_uint8s(s, 3); |
305 |
out_uint32(s, 0); |
306 |
#endif |
307 |
|
308 |
s_mark_end(s); |
309 |
channel_send(s, rdpdr_channel); |
310 |
} |
311 |
|
312 |
static void |
313 |
rdpdr_send_completion(uint32 device, uint32 id, uint32 status, uint32 result, uint8 * buffer, |
314 |
uint32 length) |
315 |
{ |
316 |
uint8 magic[4] = "rDCI"; |
317 |
STREAM s; |
318 |
|
319 |
s = channel_init(rdpdr_channel, 20 + length); |
320 |
out_uint8a(s, magic, 4); |
321 |
out_uint32_le(s, device); |
322 |
out_uint32_le(s, id); |
323 |
out_uint32_le(s, status); |
324 |
out_uint32_le(s, result); |
325 |
out_uint8p(s, buffer, length); |
326 |
s_mark_end(s); |
327 |
/* JIF */ |
328 |
#ifdef WITH_DEBUG_RDP5 |
329 |
printf("--> rdpdr_send_completion\n"); |
330 |
/* hexdump(s->channel_hdr + 8, s->end - s->channel_hdr - 8); */ |
331 |
#endif |
332 |
channel_send(s, rdpdr_channel); |
333 |
} |
334 |
|
335 |
static void |
336 |
rdpdr_process_irp(STREAM s) |
337 |
{ |
338 |
uint32 result = 0, |
339 |
length = 0, |
340 |
desired_access = 0, |
341 |
request, |
342 |
file, |
343 |
info_level, |
344 |
buffer_len, |
345 |
id, |
346 |
major, |
347 |
minor, |
348 |
device, |
349 |
offset, |
350 |
bytes_in, |
351 |
bytes_out, |
352 |
error_mode, |
353 |
share_mode, disposition, total_timeout, interval_timeout, flags_and_attributes = 0; |
354 |
|
355 |
char filename[PATH_MAX]; |
356 |
uint8 *buffer, *pst_buf; |
357 |
struct stream out; |
358 |
DEVICE_FNS *fns; |
359 |
BOOL rw_blocking = True; |
360 |
NTSTATUS status = STATUS_INVALID_DEVICE_REQUEST; |
361 |
|
362 |
in_uint32_le(s, device); |
363 |
in_uint32_le(s, file); |
364 |
in_uint32_le(s, id); |
365 |
in_uint32_le(s, major); |
366 |
in_uint32_le(s, minor); |
367 |
|
368 |
buffer_len = 0; |
369 |
buffer = (uint8 *) xmalloc(1024); |
370 |
buffer[0] = 0; |
371 |
|
372 |
switch (g_rdpdr_device[device].device_type) |
373 |
{ |
374 |
case DEVICE_TYPE_SERIAL: |
375 |
|
376 |
fns = &serial_fns; |
377 |
rw_blocking = False; |
378 |
break; |
379 |
|
380 |
case DEVICE_TYPE_PARALLEL: |
381 |
|
382 |
fns = ¶llel_fns; |
383 |
rw_blocking = False; |
384 |
break; |
385 |
|
386 |
case DEVICE_TYPE_PRINTER: |
387 |
|
388 |
fns = &printer_fns; |
389 |
break; |
390 |
|
391 |
case DEVICE_TYPE_DISK: |
392 |
|
393 |
fns = &disk_fns; |
394 |
rw_blocking = False; |
395 |
break; |
396 |
|
397 |
case DEVICE_TYPE_SCARD: |
398 |
default: |
399 |
|
400 |
error("IRP for bad device %ld\n", device); |
401 |
return; |
402 |
} |
403 |
|
404 |
switch (major) |
405 |
{ |
406 |
case IRP_MJ_CREATE: |
407 |
|
408 |
in_uint32_be(s, desired_access); |
409 |
in_uint8s(s, 0x08); /* unknown */ |
410 |
in_uint32_le(s, error_mode); |
411 |
in_uint32_le(s, share_mode); |
412 |
in_uint32_le(s, disposition); |
413 |
in_uint32_le(s, flags_and_attributes); |
414 |
in_uint32_le(s, length); |
415 |
|
416 |
if (length && (length / 2) < 256) |
417 |
{ |
418 |
rdp_in_unistr(s, filename, length); |
419 |
convert_to_unix_filename(filename); |
420 |
} |
421 |
else |
422 |
{ |
423 |
filename[0] = 0; |
424 |
} |
425 |
|
426 |
if (!fns->create) |
427 |
{ |
428 |
status = STATUS_NOT_SUPPORTED; |
429 |
break; |
430 |
} |
431 |
|
432 |
status = fns->create(device, desired_access, share_mode, disposition, |
433 |
flags_and_attributes, filename, &result); |
434 |
buffer_len = 1; |
435 |
break; |
436 |
|
437 |
case IRP_MJ_CLOSE: |
438 |
if (!fns->close) |
439 |
{ |
440 |
status = STATUS_NOT_SUPPORTED; |
441 |
break; |
442 |
} |
443 |
|
444 |
status = fns->close(file); |
445 |
break; |
446 |
|
447 |
case IRP_MJ_READ: |
448 |
|
449 |
if (!fns->read) |
450 |
{ |
451 |
status = STATUS_NOT_SUPPORTED; |
452 |
break; |
453 |
} |
454 |
|
455 |
in_uint32_le(s, length); |
456 |
in_uint32_le(s, offset); |
457 |
#if WITH_DEBUG_RDP5 |
458 |
DEBUG(("RDPDR IRP Read (length: %d, offset: %d)\n", length, offset)); |
459 |
#endif |
460 |
if (!rdpdr_handle_ok(device, file)) |
461 |
{ |
462 |
status = STATUS_INVALID_HANDLE; |
463 |
break; |
464 |
} |
465 |
|
466 |
if (rw_blocking) /* Complete read immediately */ |
467 |
{ |
468 |
buffer = (uint8 *) xrealloc((void *) buffer, length); |
469 |
if (!buffer) |
470 |
{ |
471 |
status = STATUS_CANCELLED; |
472 |
break; |
473 |
} |
474 |
status = fns->read(file, buffer, length, offset, &result); |
475 |
buffer_len = result; |
476 |
break; |
477 |
} |
478 |
|
479 |
/* Add request to table */ |
480 |
pst_buf = (uint8 *) xmalloc(length); |
481 |
if (!pst_buf) |
482 |
{ |
483 |
status = STATUS_CANCELLED; |
484 |
break; |
485 |
} |
486 |
serial_get_timeout(file, length, &total_timeout, &interval_timeout); |
487 |
if (add_async_iorequest |
488 |
(device, file, id, major, length, fns, total_timeout, interval_timeout, |
489 |
pst_buf, offset)) |
490 |
{ |
491 |
status = STATUS_PENDING; |
492 |
break; |
493 |
} |
494 |
|
495 |
status = STATUS_CANCELLED; |
496 |
break; |
497 |
case IRP_MJ_WRITE: |
498 |
|
499 |
buffer_len = 1; |
500 |
|
501 |
if (!fns->write) |
502 |
{ |
503 |
status = STATUS_NOT_SUPPORTED; |
504 |
break; |
505 |
} |
506 |
|
507 |
in_uint32_le(s, length); |
508 |
in_uint32_le(s, offset); |
509 |
in_uint8s(s, 0x18); |
510 |
#if WITH_DEBUG_RDP5 |
511 |
DEBUG(("RDPDR IRP Write (length: %d)\n", result)); |
512 |
#endif |
513 |
if (!rdpdr_handle_ok(device, file)) |
514 |
{ |
515 |
status = STATUS_INVALID_HANDLE; |
516 |
break; |
517 |
} |
518 |
|
519 |
if (rw_blocking) /* Complete immediately */ |
520 |
{ |
521 |
status = fns->write(file, s->p, length, offset, &result); |
522 |
break; |
523 |
} |
524 |
|
525 |
/* Add to table */ |
526 |
pst_buf = (uint8 *) xmalloc(length); |
527 |
if (!pst_buf) |
528 |
{ |
529 |
status = STATUS_CANCELLED; |
530 |
break; |
531 |
} |
532 |
|
533 |
in_uint8a(s, pst_buf, length); |
534 |
|
535 |
if (add_async_iorequest |
536 |
(device, file, id, major, length, fns, 0, 0, pst_buf, offset)) |
537 |
{ |
538 |
status = STATUS_PENDING; |
539 |
break; |
540 |
} |
541 |
|
542 |
status = STATUS_CANCELLED; |
543 |
break; |
544 |
|
545 |
case IRP_MJ_QUERY_INFORMATION: |
546 |
|
547 |
if (g_rdpdr_device[device].device_type != DEVICE_TYPE_DISK) |
548 |
{ |
549 |
status = STATUS_INVALID_HANDLE; |
550 |
break; |
551 |
} |
552 |
in_uint32_le(s, info_level); |
553 |
|
554 |
out.data = out.p = buffer; |
555 |
out.size = sizeof(buffer); |
556 |
status = disk_query_information(file, info_level, &out); |
557 |
result = buffer_len = out.p - out.data; |
558 |
|
559 |
break; |
560 |
|
561 |
case IRP_MJ_SET_INFORMATION: |
562 |
|
563 |
if (g_rdpdr_device[device].device_type != DEVICE_TYPE_DISK) |
564 |
{ |
565 |
status = STATUS_INVALID_HANDLE; |
566 |
break; |
567 |
} |
568 |
|
569 |
in_uint32_le(s, info_level); |
570 |
|
571 |
out.data = out.p = buffer; |
572 |
out.size = sizeof(buffer); |
573 |
status = disk_set_information(file, info_level, s, &out); |
574 |
result = buffer_len = out.p - out.data; |
575 |
break; |
576 |
|
577 |
case IRP_MJ_QUERY_VOLUME_INFORMATION: |
578 |
|
579 |
if (g_rdpdr_device[device].device_type != DEVICE_TYPE_DISK) |
580 |
{ |
581 |
status = STATUS_INVALID_HANDLE; |
582 |
break; |
583 |
} |
584 |
|
585 |
in_uint32_le(s, info_level); |
586 |
|
587 |
out.data = out.p = buffer; |
588 |
out.size = sizeof(buffer); |
589 |
status = disk_query_volume_information(file, info_level, &out); |
590 |
result = buffer_len = out.p - out.data; |
591 |
break; |
592 |
|
593 |
case IRP_MJ_DIRECTORY_CONTROL: |
594 |
|
595 |
if (g_rdpdr_device[device].device_type != DEVICE_TYPE_DISK) |
596 |
{ |
597 |
status = STATUS_INVALID_HANDLE; |
598 |
break; |
599 |
} |
600 |
|
601 |
switch (minor) |
602 |
{ |
603 |
case IRP_MN_QUERY_DIRECTORY: |
604 |
|
605 |
in_uint32_le(s, info_level); |
606 |
in_uint8s(s, 1); |
607 |
in_uint32_le(s, length); |
608 |
in_uint8s(s, 0x17); |
609 |
if (length && length < 2 * 255) |
610 |
{ |
611 |
rdp_in_unistr(s, filename, length); |
612 |
convert_to_unix_filename(filename); |
613 |
} |
614 |
else |
615 |
{ |
616 |
filename[0] = 0; |
617 |
} |
618 |
out.data = out.p = buffer; |
619 |
out.size = sizeof(buffer); |
620 |
status = disk_query_directory(file, info_level, filename, |
621 |
&out); |
622 |
result = buffer_len = out.p - out.data; |
623 |
if (!buffer_len) |
624 |
buffer_len++; |
625 |
break; |
626 |
|
627 |
case IRP_MN_NOTIFY_CHANGE_DIRECTORY: |
628 |
|
629 |
/* JIF |
630 |
unimpl("IRP major=0x%x minor=0x%x: IRP_MN_NOTIFY_CHANGE_DIRECTORY\n", major, minor); */ |
631 |
|
632 |
in_uint32_le(s, info_level); /* notify mask */ |
633 |
|
634 |
g_notify_stamp = True; |
635 |
|
636 |
status = disk_create_notify(file, info_level); |
637 |
result = 0; |
638 |
|
639 |
if (status == STATUS_PENDING) |
640 |
add_async_iorequest(device, file, id, major, length, |
641 |
fns, 0, 0, NULL, 0); |
642 |
break; |
643 |
|
644 |
default: |
645 |
|
646 |
status = STATUS_INVALID_PARAMETER; |
647 |
/* JIF */ |
648 |
unimpl("IRP major=0x%x minor=0x%x\n", major, minor); |
649 |
} |
650 |
break; |
651 |
|
652 |
case IRP_MJ_DEVICE_CONTROL: |
653 |
|
654 |
if (!fns->device_control) |
655 |
{ |
656 |
status = STATUS_NOT_SUPPORTED; |
657 |
break; |
658 |
} |
659 |
|
660 |
in_uint32_le(s, bytes_out); |
661 |
in_uint32_le(s, bytes_in); |
662 |
in_uint32_le(s, request); |
663 |
in_uint8s(s, 0x14); |
664 |
|
665 |
buffer = (uint8 *) xrealloc((void *) buffer, bytes_out + 0x14); |
666 |
if (!buffer) |
667 |
{ |
668 |
status = STATUS_CANCELLED; |
669 |
break; |
670 |
} |
671 |
|
672 |
out.data = out.p = buffer; |
673 |
out.size = sizeof(buffer); |
674 |
status = fns->device_control(file, request, s, &out); |
675 |
result = buffer_len = out.p - out.data; |
676 |
|
677 |
/* Serial SERIAL_WAIT_ON_MASK */ |
678 |
if (status == STATUS_PENDING) |
679 |
{ |
680 |
if (add_async_iorequest |
681 |
(device, file, id, major, length, fns, 0, 0, NULL, 0)) |
682 |
{ |
683 |
status = STATUS_PENDING; |
684 |
break; |
685 |
} |
686 |
} |
687 |
break; |
688 |
|
689 |
|
690 |
case IRP_MJ_LOCK_CONTROL: |
691 |
|
692 |
if (g_rdpdr_device[device].device_type != DEVICE_TYPE_DISK) |
693 |
{ |
694 |
status = STATUS_INVALID_HANDLE; |
695 |
break; |
696 |
} |
697 |
|
698 |
in_uint32_le(s, info_level); |
699 |
|
700 |
out.data = out.p = buffer; |
701 |
out.size = sizeof(buffer); |
702 |
/* FIXME: Perhaps consider actually *do* |
703 |
something here :-) */ |
704 |
status = STATUS_SUCCESS; |
705 |
result = buffer_len = out.p - out.data; |
706 |
break; |
707 |
|
708 |
default: |
709 |
unimpl("IRP major=0x%x minor=0x%x\n", major, minor); |
710 |
break; |
711 |
} |
712 |
|
713 |
if (status != STATUS_PENDING) |
714 |
{ |
715 |
rdpdr_send_completion(device, id, status, result, buffer, buffer_len); |
716 |
} |
717 |
if (buffer) |
718 |
xfree(buffer); |
719 |
buffer = NULL; |
720 |
} |
721 |
|
722 |
static void |
723 |
rdpdr_send_clientcapabilty(void) |
724 |
{ |
725 |
uint8 magic[4] = "rDPC"; |
726 |
STREAM s; |
727 |
|
728 |
s = channel_init(rdpdr_channel, 0x50); |
729 |
out_uint8a(s, magic, 4); |
730 |
out_uint32_le(s, 5); /* count */ |
731 |
out_uint16_le(s, 1); /* first */ |
732 |
out_uint16_le(s, 0x28); /* length */ |
733 |
out_uint32_le(s, 1); |
734 |
out_uint32_le(s, 2); |
735 |
out_uint16_le(s, 2); |
736 |
out_uint16_le(s, 5); |
737 |
out_uint16_le(s, 1); |
738 |
out_uint16_le(s, 5); |
739 |
out_uint16_le(s, 0xFFFF); |
740 |
out_uint16_le(s, 0); |
741 |
out_uint32_le(s, 0); |
742 |
out_uint32_le(s, 3); |
743 |
out_uint32_le(s, 0); |
744 |
out_uint32_le(s, 0); |
745 |
out_uint16_le(s, 2); /* second */ |
746 |
out_uint16_le(s, 8); /* length */ |
747 |
out_uint32_le(s, 1); |
748 |
out_uint16_le(s, 3); /* third */ |
749 |
out_uint16_le(s, 8); /* length */ |
750 |
out_uint32_le(s, 1); |
751 |
out_uint16_le(s, 4); /* fourth */ |
752 |
out_uint16_le(s, 8); /* length */ |
753 |
out_uint32_le(s, 1); |
754 |
out_uint16_le(s, 5); /* fifth */ |
755 |
out_uint16_le(s, 8); /* length */ |
756 |
out_uint32_le(s, 1); |
757 |
|
758 |
s_mark_end(s); |
759 |
channel_send(s, rdpdr_channel); |
760 |
} |
761 |
|
762 |
static void |
763 |
rdpdr_process(STREAM s) |
764 |
{ |
765 |
uint32 handle; |
766 |
uint8 *magic; |
767 |
|
768 |
#if WITH_DEBUG_RDP5 |
769 |
printf("--- rdpdr_process ---\n"); |
770 |
hexdump(s->p, s->end - s->p); |
771 |
#endif |
772 |
in_uint8p(s, magic, 4); |
773 |
|
774 |
if ((magic[0] == 'r') && (magic[1] == 'D')) |
775 |
{ |
776 |
if ((magic[2] == 'R') && (magic[3] == 'I')) |
777 |
{ |
778 |
rdpdr_process_irp(s); |
779 |
return; |
780 |
} |
781 |
if ((magic[2] == 'n') && (magic[3] == 'I')) |
782 |
{ |
783 |
rdpdr_send_connect(); |
784 |
rdpdr_send_name(); |
785 |
return; |
786 |
} |
787 |
if ((magic[2] == 'C') && (magic[3] == 'C')) |
788 |
{ |
789 |
/* connect from server */ |
790 |
rdpdr_send_clientcapabilty(); |
791 |
rdpdr_send_available(); |
792 |
return; |
793 |
} |
794 |
if ((magic[2] == 'r') && (magic[3] == 'd')) |
795 |
{ |
796 |
/* connect to a specific resource */ |
797 |
in_uint32(s, handle); |
798 |
#if WITH_DEBUG_RDP5 |
799 |
DEBUG(("RDPDR: Server connected to resource %d\n", handle)); |
800 |
#endif |
801 |
return; |
802 |
} |
803 |
if ((magic[2] == 'P') && (magic[3] == 'S')) |
804 |
{ |
805 |
/* server capability */ |
806 |
return; |
807 |
} |
808 |
} |
809 |
if ((magic[0] == 'R') && (magic[1] == 'P')) |
810 |
{ |
811 |
if ((magic[2] == 'C') && (magic[3] == 'P')) |
812 |
{ |
813 |
printercache_process(s); |
814 |
return; |
815 |
} |
816 |
} |
817 |
unimpl("RDPDR packet type %c%c%c%c\n", magic[0], magic[1], magic[2], magic[3]); |
818 |
} |
819 |
|
820 |
BOOL |
821 |
rdpdr_init() |
822 |
{ |
823 |
if (g_num_devices > 0) |
824 |
{ |
825 |
rdpdr_channel = |
826 |
channel_register("rdpdr", |
827 |
CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_COMPRESS_RDP, |
828 |
rdpdr_process); |
829 |
} |
830 |
|
831 |
return (rdpdr_channel != NULL); |
832 |
} |
833 |
|
834 |
/* Add file descriptors of pending io request to select() */ |
835 |
void |
836 |
rdpdr_add_fds(int *n, fd_set * rfds, fd_set * wfds, struct timeval *tv, BOOL * timeout) |
837 |
{ |
838 |
uint32 select_timeout = 0; /* Timeout value to be used for select() (in millisecons). */ |
839 |
struct async_iorequest *iorq; |
840 |
char c; |
841 |
|
842 |
iorq = g_iorequest; |
843 |
while (iorq != NULL) |
844 |
{ |
845 |
if (iorq->fd != 0) |
846 |
{ |
847 |
switch (iorq->major) |
848 |
{ |
849 |
case IRP_MJ_READ: |
850 |
/* Is this FD valid? FDs will |
851 |
be invalid when |
852 |
reconnecting. FIXME: Real |
853 |
support for reconnects. */ |
854 |
|
855 |
FD_SET(iorq->fd, rfds); |
856 |
*n = MAX(*n, iorq->fd); |
857 |
|
858 |
/* Check if io request timeout is smaller than current (but not 0). */ |
859 |
if (iorq->timeout |
860 |
&& (select_timeout == 0 |
861 |
|| iorq->timeout < select_timeout)) |
862 |
{ |
863 |
/* Set new timeout */ |
864 |
select_timeout = iorq->timeout; |
865 |
g_min_timeout_fd = iorq->fd; /* Remember fd */ |
866 |
tv->tv_sec = select_timeout / 1000; |
867 |
tv->tv_usec = (select_timeout % 1000) * 1000; |
868 |
*timeout = True; |
869 |
break; |
870 |
} |
871 |
if (iorq->itv_timeout && iorq->partial_len > 0 |
872 |
&& (select_timeout == 0 |
873 |
|| iorq->itv_timeout < select_timeout)) |
874 |
{ |
875 |
/* Set new timeout */ |
876 |
select_timeout = iorq->itv_timeout; |
877 |
g_min_timeout_fd = iorq->fd; /* Remember fd */ |
878 |
tv->tv_sec = select_timeout / 1000; |
879 |
tv->tv_usec = (select_timeout % 1000) * 1000; |
880 |
*timeout = True; |
881 |
break; |
882 |
} |
883 |
break; |
884 |
|
885 |
case IRP_MJ_WRITE: |
886 |
/* FD still valid? See above. */ |
887 |
if ((write(iorq->fd, &c, 0) != 0) && (errno == EBADF)) |
888 |
break; |
889 |
|
890 |
FD_SET(iorq->fd, wfds); |
891 |
*n = MAX(*n, iorq->fd); |
892 |
break; |
893 |
|
894 |
case IRP_MJ_DEVICE_CONTROL: |
895 |
if (select_timeout > 5) |
896 |
select_timeout = 5; /* serial event queue */ |
897 |
break; |
898 |
|
899 |
} |
900 |
|
901 |
} |
902 |
|
903 |
iorq = iorq->next; |
904 |
} |
905 |
} |
906 |
|
907 |
struct async_iorequest * |
908 |
rdpdr_remove_iorequest(struct async_iorequest *prev, struct async_iorequest *iorq) |
909 |
{ |
910 |
if (!iorq) |
911 |
return NULL; |
912 |
|
913 |
if (iorq->buffer) |
914 |
xfree(iorq->buffer); |
915 |
if (prev) |
916 |
{ |
917 |
prev->next = iorq->next; |
918 |
xfree(iorq); |
919 |
iorq = prev->next; |
920 |
} |
921 |
else |
922 |
{ |
923 |
/* Even if NULL */ |
924 |
g_iorequest = iorq->next; |
925 |
xfree(iorq); |
926 |
iorq = NULL; |
927 |
} |
928 |
return iorq; |
929 |
} |
930 |
|
931 |
/* Check if select() returned with one of the rdpdr file descriptors, and complete io if it did */ |
932 |
static void |
933 |
_rdpdr_check_fds(fd_set * rfds, fd_set * wfds, BOOL timed_out) |
934 |
{ |
935 |
NTSTATUS status; |
936 |
uint32 result = 0; |
937 |
DEVICE_FNS *fns; |
938 |
struct async_iorequest *iorq; |
939 |
struct async_iorequest *prev; |
940 |
uint32 req_size = 0; |
941 |
uint32 buffer_len; |
942 |
struct stream out; |
943 |
uint8 *buffer = NULL; |
944 |
|
945 |
|
946 |
if (timed_out) |
947 |
{ |
948 |
/* check serial iv_timeout */ |
949 |
|
950 |
iorq = g_iorequest; |
951 |
prev = NULL; |
952 |
while (iorq != NULL) |
953 |
{ |
954 |
if (iorq->fd == g_min_timeout_fd) |
955 |
{ |
956 |
if ((iorq->partial_len > 0) && |
957 |
(g_rdpdr_device[iorq->device].device_type == |
958 |
DEVICE_TYPE_SERIAL)) |
959 |
{ |
960 |
|
961 |
/* iv_timeout between 2 chars, send partial_len */ |
962 |
/*printf("RDPDR: IVT total %u bytes read of %u\n", iorq->partial_len, iorq->length); */ |
963 |
rdpdr_send_completion(iorq->device, |
964 |
iorq->id, STATUS_SUCCESS, |
965 |
iorq->partial_len, |
966 |
iorq->buffer, iorq->partial_len); |
967 |
iorq = rdpdr_remove_iorequest(prev, iorq); |
968 |
return; |
969 |
} |
970 |
else |
971 |
{ |
972 |
break; |
973 |
} |
974 |
|
975 |
} |
976 |
else |
977 |
{ |
978 |
break; |
979 |
} |
980 |
|
981 |
|
982 |
prev = iorq; |
983 |
if (iorq) |
984 |
iorq = iorq->next; |
985 |
|
986 |
} |
987 |
|
988 |
rdpdr_abort_io(g_min_timeout_fd, 0, STATUS_TIMEOUT); |
989 |
return; |
990 |
} |
991 |
|
992 |
iorq = g_iorequest; |
993 |
prev = NULL; |
994 |
while (iorq != NULL) |
995 |
{ |
996 |
if (iorq->fd != 0) |
997 |
{ |
998 |
switch (iorq->major) |
999 |
{ |
1000 |
case IRP_MJ_READ: |
1001 |
if (FD_ISSET(iorq->fd, rfds)) |
1002 |
{ |
1003 |
/* Read the data */ |
1004 |
fns = iorq->fns; |
1005 |
|
1006 |
req_size = |
1007 |
(iorq->length - iorq->partial_len) > |
1008 |
8192 ? 8192 : (iorq->length - |
1009 |
iorq->partial_len); |
1010 |
/* never read larger chunks than 8k - chances are that it will block */ |
1011 |
status = fns->read(iorq->fd, |
1012 |
iorq->buffer + iorq->partial_len, |
1013 |
req_size, iorq->offset, &result); |
1014 |
|
1015 |
if ((long) result > 0) |
1016 |
{ |
1017 |
iorq->partial_len += result; |
1018 |
iorq->offset += result; |
1019 |
} |
1020 |
#if WITH_DEBUG_RDP5 |
1021 |
DEBUG(("RDPDR: %d bytes of data read\n", result)); |
1022 |
#endif |
1023 |
/* only delete link if all data has been transfered */ |
1024 |
/* or if result was 0 and status success - EOF */ |
1025 |
if ((iorq->partial_len == iorq->length) || |
1026 |
(result == 0)) |
1027 |
{ |
1028 |
#if WITH_DEBUG_RDP5 |
1029 |
DEBUG(("RDPDR: AIO total %u bytes read of %u\n", iorq->partial_len, iorq->length)); |
1030 |
#endif |
1031 |
rdpdr_send_completion(iorq->device, |
1032 |
iorq->id, status, |
1033 |
iorq->partial_len, |
1034 |
iorq->buffer, |
1035 |
iorq->partial_len); |
1036 |
iorq = rdpdr_remove_iorequest(prev, iorq); |
1037 |
} |
1038 |
} |
1039 |
break; |
1040 |
case IRP_MJ_WRITE: |
1041 |
if (FD_ISSET(iorq->fd, wfds)) |
1042 |
{ |
1043 |
/* Write data. */ |
1044 |
fns = iorq->fns; |
1045 |
|
1046 |
req_size = |
1047 |
(iorq->length - iorq->partial_len) > |
1048 |
8192 ? 8192 : (iorq->length - |
1049 |
iorq->partial_len); |
1050 |
|
1051 |
/* never write larger chunks than 8k - chances are that it will block */ |
1052 |
status = fns->write(iorq->fd, |
1053 |
iorq->buffer + |
1054 |
iorq->partial_len, req_size, |
1055 |
iorq->offset, &result); |
1056 |
|
1057 |
if ((long) result > 0) |
1058 |
{ |
1059 |
iorq->partial_len += result; |
1060 |
iorq->offset += result; |
1061 |
} |
1062 |
|
1063 |
#if WITH_DEBUG_RDP5 |
1064 |
DEBUG(("RDPDR: %d bytes of data written\n", |
1065 |
result)); |
1066 |
#endif |
1067 |
/* only delete link if all data has been transfered */ |
1068 |
/* or we couldn't write */ |
1069 |
if ((iorq->partial_len == iorq->length) |
1070 |
|| (result == 0)) |
1071 |
{ |
1072 |
#if WITH_DEBUG_RDP5 |
1073 |
DEBUG(("RDPDR: AIO total %u bytes written of %u\n", iorq->partial_len, iorq->length)); |
1074 |
#endif |
1075 |
rdpdr_send_completion(iorq->device, |
1076 |
iorq->id, status, |
1077 |
iorq->partial_len, |
1078 |
(uint8 *) "", 1); |
1079 |
|
1080 |
iorq = rdpdr_remove_iorequest(prev, iorq); |
1081 |
} |
1082 |
} |
1083 |
break; |
1084 |
case IRP_MJ_DEVICE_CONTROL: |
1085 |
if (serial_get_event(iorq->fd, &result)) |
1086 |
{ |
1087 |
buffer = (uint8 *) xrealloc((void *) buffer, 0x14); |
1088 |
out.data = out.p = buffer; |
1089 |
out.size = sizeof(buffer); |
1090 |
out_uint32_le(&out, result); |
1091 |
result = buffer_len = out.p - out.data; |
1092 |
status = STATUS_SUCCESS; |
1093 |
rdpdr_send_completion(iorq->device, iorq->id, |
1094 |
status, result, buffer, |
1095 |
buffer_len); |
1096 |
xfree(buffer); |
1097 |
iorq = rdpdr_remove_iorequest(prev, iorq); |
1098 |
} |
1099 |
|
1100 |
break; |
1101 |
} |
1102 |
|
1103 |
} |
1104 |
prev = iorq; |
1105 |
if (iorq) |
1106 |
iorq = iorq->next; |
1107 |
} |
1108 |
|
1109 |
/* Check notify */ |
1110 |
iorq = g_iorequest; |
1111 |
prev = NULL; |
1112 |
while (iorq != NULL) |
1113 |
{ |
1114 |
if (iorq->fd != 0) |
1115 |
{ |
1116 |
switch (iorq->major) |
1117 |
{ |
1118 |
|
1119 |
case IRP_MJ_DIRECTORY_CONTROL: |
1120 |
if (g_rdpdr_device[iorq->device].device_type == |
1121 |
DEVICE_TYPE_DISK) |
1122 |
{ |
1123 |
|
1124 |
if (g_notify_stamp) |
1125 |
{ |
1126 |
g_notify_stamp = False; |
1127 |
status = disk_check_notify(iorq->fd); |
1128 |
if (status != STATUS_PENDING) |
1129 |
{ |
1130 |
rdpdr_send_completion(iorq->device, |
1131 |
iorq->id, |
1132 |
status, 0, |
1133 |
NULL, 0); |
1134 |
iorq = rdpdr_remove_iorequest(prev, |
1135 |
iorq); |
1136 |
} |
1137 |
} |
1138 |
} |
1139 |
break; |
1140 |
|
1141 |
|
1142 |
|
1143 |
} |
1144 |
} |
1145 |
|
1146 |
prev = iorq; |
1147 |
if (iorq) |
1148 |
iorq = iorq->next; |
1149 |
} |
1150 |
|
1151 |
} |
1152 |
|
1153 |
void |
1154 |
rdpdr_check_fds(fd_set * rfds, fd_set * wfds, BOOL timed_out) |
1155 |
{ |
1156 |
fd_set dummy; |
1157 |
|
1158 |
|
1159 |
FD_ZERO(&dummy); |
1160 |
|
1161 |
|
1162 |
/* fist check event queue only, |
1163 |
any serial wait event must be done before read block will be sent |
1164 |
*/ |
1165 |
|
1166 |
_rdpdr_check_fds(&dummy, &dummy, False); |
1167 |
_rdpdr_check_fds(rfds, wfds, timed_out); |
1168 |
} |
1169 |
|
1170 |
|
1171 |
/* Abort a pending io request for a given handle and major */ |
1172 |
BOOL |
1173 |
rdpdr_abort_io(uint32 fd, uint32 major, NTSTATUS status) |
1174 |
{ |
1175 |
uint32 result; |
1176 |
struct async_iorequest *iorq; |
1177 |
struct async_iorequest *prev; |
1178 |
|
1179 |
iorq = g_iorequest; |
1180 |
prev = NULL; |
1181 |
while (iorq != NULL) |
1182 |
{ |
1183 |
/* Only remove from table when major is not set, or when correct major is supplied. |
1184 |
Abort read should not abort a write io request. */ |
1185 |
if ((iorq->fd == fd) && (major == 0 || iorq->major == major)) |
1186 |
{ |
1187 |
result = 0; |
1188 |
rdpdr_send_completion(iorq->device, iorq->id, status, result, (uint8 *) "", |
1189 |
1); |
1190 |
|
1191 |
iorq = rdpdr_remove_iorequest(prev, iorq); |
1192 |
return True; |
1193 |
} |
1194 |
|
1195 |
prev = iorq; |
1196 |
iorq = iorq->next; |
1197 |
} |
1198 |
|
1199 |
return False; |
1200 |
} |