server/console.c

   1 /*
   2  * Server-side console management
   3  *
   4  * Copyright (C) 1998 Alexandre Julliard
   5  *               2001 Eric Pouech
   6  * Copyright 2020 Jacek Caban for CodeWeavers
   7  *
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include "config.h"
  25
  26 #include <assert.h>
  27 #include <string.h>
  28 #include <stdio.h>
  29 #include <unistd.h>
  30 #include <signal.h>
  31 #include <sys/ioctl.h>
  32 #include <termios.h>
  33
  34 #include "ntstatus.h"
  35 #define WIN32_NO_STATUS
  36 #include "handle.h"
  37 #include "process.h"
  38 #include "request.h"
  39 #include "file.h"
  40 #include "unicode.h"
  41 #include "wincon.h"
  42 #include "winternl.h"
  43 #include "wine/condrv.h"
  44
  45 struct screen_buffer;
  46
  47 struct history_line
  48 {
  49     data_size_t len;
  50     WCHAR       text[1];
  51 };
  52
  53 struct console
  54 {
  55     struct object                obj;           /* object header */
  56     int                          signaled;      /* is console signaled */
  57     struct thread               *renderer;      /* console renderer thread */
  58     struct screen_buffer        *active;        /* active screen buffer */
  59     struct console_server       *server;        /* console server object */
  60     unsigned int                 last_id;       /* id of last created console buffer */
  61     struct fd                   *fd;            /* for bare console, attached input fd */
  62     struct async_queue           ioctl_q;       /* ioctl queue */
  63     struct async_queue           read_q;        /* read queue */
  64 };
  65
  66 static void console_dump( struct object *obj, int verbose );
  67 static void console_destroy( struct object *obj );
  68 static int console_signaled( struct object *obj, struct wait_queue_entry *entry );
  69 static struct fd *console_get_fd( struct object *obj );
  70 static struct object *console_lookup_name( struct object *obj, struct unicode_str *name,
  71                                            unsigned int attr, struct object *root );
  72 static struct object *console_open_file( struct object *obj, unsigned int access,
  73                                          unsigned int sharing, unsigned int options );
  74 static int console_add_queue( struct object *obj, struct wait_queue_entry *entry );
  75
  76 static const struct object_ops console_ops =
  77 {
  78     sizeof(struct console),           /* size */
  79     &file_type,                       /* type */
  80     console_dump,                     /* dump */
  81     console_add_queue,                /* add_queue */
  82     remove_queue,                     /* remove_queue */
  83     console_signaled,                 /* signaled */
  84     no_satisfied,                     /* satisfied */
  85     no_signal,                        /* signal */
  86     console_get_fd,                   /* get_fd */
  87     default_map_access,               /* map_access */
  88     default_get_sd,                   /* get_sd */
  89     default_set_sd,                   /* set_sd */
  90     no_get_full_name,                 /* get_full_name */
  91     console_lookup_name,              /* lookup_name */
  92     no_link_name,                     /* link_name */
  93     NULL,                             /* unlink_name */
  94     console_open_file,                /* open_file */
  95     no_kernel_obj_list,               /* get_kernel_obj_list */
  96     no_close_handle,                  /* close_handle */
  97     console_destroy                   /* destroy */
  98 };
  99
 100 static enum server_fd_type console_get_fd_type( struct fd *fd );
 101 static void console_get_file_info( struct fd *fd, obj_handle_t handle, unsigned int info_class );
 102 static void console_get_volume_info( struct fd *fd, struct async *async, unsigned int info_class );
 103 static void console_read( struct fd *fd, struct async *async, file_pos_t pos );
 104 static void console_flush( struct fd *fd, struct async *async );
 105 static void console_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
 106
 107 static const struct fd_ops console_fd_ops =
 108 {
 109     default_fd_get_poll_events,   /* get_poll_events */
 110     default_poll_event,           /* poll_event */
 111     console_get_fd_type,          /* get_fd_type */
 112     console_read,                 /* read */
 113     no_fd_write,                  /* write */
 114     console_flush,                /* flush */
 115     console_get_file_info,        /* get_file_info */
 116     console_get_volume_info,      /* get_volume_info */
 117     console_ioctl,                /* ioctl */
 118     default_fd_cancel_async,      /* cancel_async */
 119     default_fd_queue_async,       /* queue_async */
 120     default_fd_reselect_async     /* reselect_async */
 121 };
 122
 123 struct console_host_ioctl
 124 {
 125     unsigned int          code;        /* ioctl code */
 126     int                   output;      /* output id for screen buffer ioctls */
 127     struct async         *async;       /* ioctl async */
 128     struct list           entry;       /* list entry */
 129 };
 130
 131 struct console_server
 132 {
 133     struct object         obj;            /* object header */
 134     struct fd            *fd;             /* pseudo-fd for ioctls */
 135     struct console       *console;        /* attached console */
 136     struct list           queue;          /* ioctl queue */
 137     struct list           read_queue;     /* blocking read queue */
 138     unsigned int          busy : 1;       /* flag if server processing an ioctl */
 139     unsigned int          once_input : 1; /* flag if input thread has already been requested */
 140     int                   term_fd;        /* UNIX terminal fd */
 141     struct termios        termios;        /* original termios */
 142 };
 143
 144 static void console_server_dump( struct object *obj, int verbose );
 145 static void console_server_destroy( struct object *obj );
 146 static int console_server_signaled( struct object *obj, struct wait_queue_entry *entry );
 147 static struct fd *console_server_get_fd( struct object *obj );
 148 static struct object *console_server_lookup_name( struct object *obj, struct unicode_str *name,
 149                                                 unsigned int attr, struct object *root );
 150 static struct object *console_server_open_file( struct object *obj, unsigned int access,
 151                                                 unsigned int sharing, unsigned int options );
 152
 153 static const struct object_ops console_server_ops =
 154 {
 155     sizeof(struct console_server),    /* size */
 156     &file_type,                       /* type */
 157     console_server_dump,              /* dump */
 158     add_queue,                        /* add_queue */
 159     remove_queue,                     /* remove_queue */
 160     console_server_signaled,          /* signaled */
 161     no_satisfied,                     /* satisfied */
 162     no_signal,                        /* signal */
 163     console_server_get_fd,            /* get_fd */
 164     default_map_access,               /* map_access */
 165     default_get_sd,                   /* get_sd */
 166     default_set_sd,                   /* set_sd */
 167     no_get_full_name,                 /* get_full_name */
 168     console_server_lookup_name,       /* lookup_name */
 169     no_link_name,                     /* link_name */
 170     NULL,                             /* unlink_name */
 171     console_server_open_file,         /* open_file */
 172     no_kernel_obj_list,               /* get_kernel_obj_list */
 173     no_close_handle,                  /* close_handle */
 174     console_server_destroy            /* destroy */
 175 };
 176
 177 static void console_server_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
 178
 179 static const struct fd_ops console_server_fd_ops =
 180 {
 181     default_fd_get_poll_events,   /* get_poll_events */
 182     default_poll_event,           /* poll_event */
 183     console_get_fd_type,          /* get_fd_type */
 184     no_fd_read,                   /* read */
 185     no_fd_write,                  /* write */
 186     no_fd_flush,                  /* flush */
 187     no_fd_get_file_info,          /* get_file_info */
 188     no_fd_get_volume_info,        /* get_volume_info */
 189     console_server_ioctl,         /* ioctl */
 190     default_fd_cancel_async,      /* cancel_async */
 191     default_fd_queue_async,       /* queue_async */
 192     default_fd_reselect_async     /* reselect_async */
 193 };
 194
 195 struct font_info
 196 {
 197     short int width;
 198     short int height;
 199     short int weight;
 200     short int pitch_family;
 201     WCHAR    *face_name;
 202     data_size_t face_len;
 203 };
 204
 205 struct screen_buffer
 206 {
 207     struct object         obj;           /* object header */
 208     struct list           entry;         /* entry in list of all screen buffers */
 209     struct console       *input;         /* associated console input */
 210     unsigned int          id;            /* buffer id */
 211     struct fd            *fd;            /* for bare console, attached output fd */
 212     struct async_queue    ioctl_q;       /* ioctl queue */
 213 };
 214
 215 static void screen_buffer_dump( struct object *obj, int verbose );
 216 static void screen_buffer_destroy( struct object *obj );
 217 static int screen_buffer_add_queue( struct object *obj, struct wait_queue_entry *entry );
 218 static struct fd *screen_buffer_get_fd( struct object *obj );
 219 static struct object *screen_buffer_open_file( struct object *obj, unsigned int access,
 220                                                unsigned int sharing, unsigned int options );
 221
 222 static const struct object_ops screen_buffer_ops =
 223 {
 224     sizeof(struct screen_buffer),     /* size */
 225     &file_type,                       /* type */
 226     screen_buffer_dump,               /* dump */
 227     screen_buffer_add_queue,          /* add_queue */
 228     NULL,                             /* remove_queue */
 229     NULL,                             /* signaled */
 230     NULL,                             /* satisfied */
 231     no_signal,                        /* signal */
 232     screen_buffer_get_fd,             /* get_fd */
 233     default_map_access,               /* map_access */
 234     default_get_sd,                   /* get_sd */
 235     default_set_sd,                   /* set_sd */
 236     no_get_full_name,                 /* get_full_name */
 237     no_lookup_name,                   /* lookup_name */
 238     no_link_name,                     /* link_name */
 239     NULL,                             /* unlink_name */
 240     screen_buffer_open_file,          /* open_file */
 241     no_kernel_obj_list,               /* get_kernel_obj_list */
 242     no_close_handle,                  /* close_handle */
 243     screen_buffer_destroy             /* destroy */
 244 };
 245
 246 static void screen_buffer_write( struct fd *fd, struct async *async, file_pos_t pos );
 247 static void screen_buffer_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
 248
 249 static const struct fd_ops screen_buffer_fd_ops =
 250 {
 251     default_fd_get_poll_events,   /* get_poll_events */
 252     default_poll_event,           /* poll_event */
 253     console_get_fd_type,          /* get_fd_type */
 254     no_fd_read,                   /* read */
 255     screen_buffer_write,          /* write */
 256     no_fd_flush,                  /* flush */
 257     console_get_file_info,        /* get_file_info */
 258     console_get_volume_info,      /* get_volume_info */
 259     screen_buffer_ioctl,          /* ioctl */
 260     default_fd_cancel_async,      /* cancel_async */
 261     default_fd_queue_async,       /* queue_async */
 262     default_fd_reselect_async     /* reselect_async */
 263 };
 264
 265 static void console_device_dump( struct object *obj, int verbose );
 266 static struct object *console_device_lookup_name( struct object *obj, struct unicode_str *name,
 267                                                 unsigned int attr, struct object *root );
 268 static struct object *console_device_open_file( struct object *obj, unsigned int access,
 269                                                 unsigned int sharing, unsigned int options );
 270
 271 static const struct object_ops console_device_ops =
 272 {
 273     sizeof(struct object),            /* size */
 274     &device_type,                     /* type */
 275     console_device_dump,              /* dump */
 276     no_add_queue,                     /* add_queue */
 277     NULL,                             /* remove_queue */
 278     NULL,                             /* signaled */
 279     no_satisfied,                     /* satisfied */
 280     no_signal,                        /* signal */
 281     no_get_fd,                        /* get_fd */
 282     default_map_access,               /* map_access */
 283     default_get_sd,                   /* get_sd */
 284     default_set_sd,                   /* set_sd */
 285     default_get_full_name,            /* get_full_name */
 286     console_device_lookup_name,       /* lookup_name */
 287     directory_link_name,              /* link_name */
 288     default_unlink_name,              /* unlink_name */
 289     console_device_open_file,         /* open_file */
 290     no_kernel_obj_list,               /* get_kernel_obj_list */
 291     no_close_handle,                  /* close_handle */
 292     no_destroy                        /* destroy */
 293 };
 294
 295 struct console_input
 296 {
 297     struct object         obj;         /* object header */
 298     struct fd            *fd;          /* pseudo-fd */
 299 };
 300
 301 static void console_input_dump( struct object *obj, int verbose );
 302 static struct object *console_input_open_file( struct object *obj, unsigned int access,
 303                                                unsigned int sharing, unsigned int options );
 304 static int console_input_add_queue( struct object *obj, struct wait_queue_entry *entry );
 305 static struct fd *console_input_get_fd( struct object *obj );
 306 static void console_input_destroy( struct object *obj );
 307
 308 static const struct object_ops console_input_ops =
 309 {
 310     sizeof(struct console_input),     /* size */
 311     &device_type,                     /* type */
 312     console_input_dump,               /* dump */
 313     console_input_add_queue,          /* add_queue */
 314     NULL,                             /* remove_queue */
 315     NULL,                             /* signaled */
 316     no_satisfied,                     /* satisfied */
 317     no_signal,                        /* signal */
 318     console_input_get_fd,             /* get_fd */
 319     default_map_access,               /* map_access */
 320     default_get_sd,                   /* get_sd */
 321     default_set_sd,                   /* set_sd */
 322     no_get_full_name,                 /* get_full_name */
 323     no_lookup_name,                   /* lookup_name */
 324     directory_link_name,              /* link_name */
 325     default_unlink_name,              /* unlink_name */
 326     console_input_open_file,          /* open_file */
 327     no_kernel_obj_list,               /* get_kernel_obj_list */
 328     no_close_handle,                  /* close_handle */
 329     console_input_destroy             /* destroy */
 330 };
 331
 332 static void console_input_read( struct fd *fd, struct async *async, file_pos_t pos );
 333 static void console_input_flush( struct fd *fd, struct async *async );
 334 static void console_input_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
 335
 336 static const struct fd_ops console_input_fd_ops =
 337 {
 338     default_fd_get_poll_events,   /* get_poll_events */
 339     default_poll_event,           /* poll_event */
 340     console_get_fd_type,          /* get_fd_type */
 341     console_input_read,           /* read */
 342     no_fd_write,                  /* write */
 343     console_input_flush,          /* flush */
 344     console_get_file_info,        /* get_file_info */
 345     console_get_volume_info,      /* get_volume_info */
 346     console_input_ioctl,          /* ioctl */
 347     default_fd_cancel_async,      /* cancel_async */
 348     default_fd_queue_async,       /* queue_async */
 349     default_fd_reselect_async     /* reselect_async */
 350 };
 351
 352 struct console_output
 353 {
 354     struct object         obj;         /* object header */
 355     struct fd            *fd;          /* pseudo-fd */
 356 };
 357
 358 static void console_output_dump( struct object *obj, int verbose );
 359 static int console_output_add_queue( struct object *obj, struct wait_queue_entry *entry );
 360 static struct fd *console_output_get_fd( struct object *obj );
 361 static struct object *console_output_open_file( struct object *obj, unsigned int access,
 362                                                 unsigned int sharing, unsigned int options );
 363 static void console_output_destroy( struct object *obj );
 364
 365 static const struct object_ops console_output_ops =
 366 {
 367     sizeof(struct console_output),    /* size */
 368     &device_type,                     /* type */
 369     console_output_dump,              /* dump */
 370     console_output_add_queue,         /* add_queue */
 371     NULL,                             /* remove_queue */
 372     NULL,                             /* signaled */
 373     no_satisfied,                     /* satisfied */
 374     no_signal,                        /* signal */
 375     console_output_get_fd,            /* get_fd */
 376     default_map_access,               /* map_access */
 377     default_get_sd,                   /* get_sd */
 378     default_set_sd,                   /* set_sd */
 379     no_get_full_name,                 /* get_full_name */
 380     no_lookup_name,                   /* lookup_name */
 381     directory_link_name,              /* link_name */
 382     default_unlink_name,              /* unlink_name */
 383     console_output_open_file,         /* open_file */
 384     no_kernel_obj_list,               /* get_kernel_obj_list */
 385     no_close_handle,                  /* close_handle */
 386     console_output_destroy            /* destroy */
 387 };
 388
 389 static void console_output_write( struct fd *fd, struct async *async, file_pos_t pos );
 390 static void console_output_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
 391
 392 static const struct fd_ops console_output_fd_ops =
 393 {
 394     default_fd_get_poll_events,   /* get_poll_events */
 395     default_poll_event,           /* poll_event */
 396     console_get_fd_type,          /* get_fd_type */
 397     no_fd_read,                   /* read */
 398     console_output_write,         /* write */
 399     no_fd_flush,                  /* flush */
 400     console_get_file_info,        /* get_file_info */
 401     console_get_volume_info,      /* get_volume_info */
 402     console_output_ioctl,         /* ioctl */
 403     default_fd_cancel_async,      /* cancel_async */
 404     default_fd_queue_async,       /* queue_async */
 405     default_fd_reselect_async     /* reselect_async */
 406 };
 407
 408 struct console_connection
 409 {
 410     struct object         obj;         /* object header */
 411     struct fd            *fd;          /* pseudo-fd for ioctls */
 412 };
 413
 414 static void console_connection_dump( struct object *obj, int verbose );
 415 static struct fd *console_connection_get_fd( struct object *obj );
 416 static struct object *console_connection_lookup_name( struct object *obj, struct unicode_str *name,
 417                                                     unsigned int attr, struct object *root );
 418 static struct object *console_connection_open_file( struct object *obj, unsigned int access,
 419                                                     unsigned int sharing, unsigned int options );
 420 static int console_connection_close_handle( struct object *obj, struct process *process, obj_handle_t handle );
 421 static void console_connection_destroy( struct object *obj );
 422
 423 static const struct object_ops console_connection_ops =
 424 {
 425     sizeof(struct console_connection),/* size */
 426     &device_type,                     /* type */
 427     console_connection_dump,          /* dump */
 428     no_add_queue,                     /* add_queue */
 429     NULL,                             /* remove_queue */
 430     NULL,                             /* signaled */
 431     no_satisfied,                     /* satisfied */
 432     no_signal,                        /* signal */
 433     console_connection_get_fd,        /* get_fd */
 434     default_map_access,               /* map_access */
 435     default_get_sd,                   /* get_sd */
 436     default_set_sd,                   /* set_sd */
 437     no_get_full_name,                 /* get_full_name */
 438     console_connection_lookup_name,   /* lookup_name */
 439     directory_link_name,              /* link_name */
 440     default_unlink_name,              /* unlink_name */
 441     console_connection_open_file,     /* open_file */
 442     no_kernel_obj_list,               /* get_kernel_obj_list */
 443     console_connection_close_handle,  /* close_handle */
 444     console_connection_destroy        /* destroy */
 445 };
 446
 447 static void console_connection_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
 448
 449 static const struct fd_ops console_connection_fd_ops =
 450 {
 451     default_fd_get_poll_events,   /* get_poll_events */
 452     default_poll_event,           /* poll_event */
 453     console_get_fd_type,          /* get_fd_type */
 454     no_fd_read,                   /* read */
 455     no_fd_write,                  /* write */
 456     no_fd_flush,                  /* flush */
 457     no_fd_get_file_info,          /* get_file_info */
 458     no_fd_get_volume_info,        /* get_volume_info */
 459     console_connection_ioctl,     /* ioctl */
 460     default_fd_cancel_async,      /* cancel_async */
 461     default_fd_queue_async,       /* queue_async */
 462     default_fd_reselect_async     /* reselect_async */
 463 };
 464
 465 static struct list screen_buffer_list = LIST_INIT(screen_buffer_list);
 466
 467 static int queue_host_ioctl( struct console_server *server, unsigned int code, unsigned int output,
 468                              struct async *async, struct async_queue *queue );
 469
 470 static int console_add_queue( struct object *obj, struct wait_queue_entry *entry )
 471 {
 472     struct console *console = (struct console*)obj;
 473     assert( obj->ops == &console_ops );
 474     /* before waiting, ensure conhost's input thread has been started */
 475     if (console->server && !console->server->once_input)
 476     {
 477         console->server->once_input = 1;
 478         if (console->server->term_fd == -1)
 479             queue_host_ioctl( console->server, IOCTL_CONDRV_PEEK, 0, NULL, NULL );
 480     }
 481     return add_queue( &console->obj, entry );
 482 }
 483
 484 static int console_signaled( struct object *obj, struct wait_queue_entry *entry )
 485 {
 486     struct console *console = (struct console*)obj;
 487     return console->signaled;
 488 }
 489
 490 static struct fd *console_get_fd( struct object *obj )
 491 {
 492     struct console *console = (struct console *)obj;
 493     assert( obj->ops == &console_ops );
 494     return (struct fd *)grab_object( console->fd );
 495 }
 496
 497 static enum server_fd_type console_get_fd_type( struct fd *fd )
 498 {
 499     return FD_TYPE_CHAR;
 500 }
 501
 502 static void console_get_file_info( struct fd *fd, obj_handle_t handle, unsigned int info_class )
 503 {
 504     set_error( STATUS_INVALID_DEVICE_REQUEST );
 505 }
 506
 507 static void console_get_volume_info( struct fd *fd, struct async *async, unsigned int info_class )
 508 {
 509     switch (info_class)
 510     {
 511     case FileFsDeviceInformation:
 512         {
 513             static const FILE_FS_DEVICE_INFORMATION device_info =
 514             {
 515                 FILE_DEVICE_CONSOLE,
 516                 FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL
 517             };
 518             if (get_reply_max_size() >= sizeof(device_info))
 519                 set_reply_data( &device_info, sizeof(device_info) );
 520             else
 521                 set_error( STATUS_BUFFER_TOO_SMALL );
 522             break;
 523         }
 524     default:
 525         set_error( STATUS_NOT_IMPLEMENTED );
 526     }
 527 }
 528
 529 static struct object *create_console(void)
 530 {
 531     struct console *console;
 532
 533     if (!(console = alloc_object( &console_ops )))
 534         return NULL;
 535
 536     console->renderer      = NULL;
 537     console->signaled      = 0;
 538     console->active        = NULL;
 539     console->server        = NULL;
 540     console->fd            = NULL;
 541     console->last_id       = 0;
 542     init_async_queue( &console->ioctl_q );
 543     init_async_queue( &console->read_q );
 544
 545     console->fd = alloc_pseudo_fd( &console_fd_ops, &console->obj, FILE_SYNCHRONOUS_IO_NONALERT );
 546     if (!console->fd)
 547     {
 548         release_object( console );
 549         return NULL;
 550     }
 551     allow_fd_caching( console->fd );
 552     return &console->obj;
 553 }
 554
 555 static void console_host_ioctl_terminate( struct console_host_ioctl *call, unsigned int status )
 556 {
 557     if (call->async)
 558     {
 559         async_terminate( call->async, status );
 560         release_object( call->async );
 561     }
 562     free( call );
 563 }
 564
 565 static int queue_host_ioctl( struct console_server *server, unsigned int code, unsigned int output,
 566                              struct async *async, struct async_queue *queue )
 567 {
 568     struct console_host_ioctl *ioctl;
 569
 570     if (!(ioctl = mem_alloc( sizeof(*ioctl) ))) return 0;
 571     ioctl->code   = code;
 572     ioctl->output = output;
 573     ioctl->async  = NULL;
 574     if (async)
 575     {
 576         ioctl->async = (struct async *)grab_object( async );
 577         queue_async( queue, async );
 578     }
 579     list_add_tail( &server->queue, &ioctl->entry );
 580     wake_up( &server->obj, 0 );
 581     if (async) set_error( STATUS_PENDING );
 582     return 1;
 583 }
 584
 585 static void disconnect_console_server( struct console_server *server )
 586 {
 587     while (!list_empty( &server->queue ))
 588     {
 589         struct console_host_ioctl *call = LIST_ENTRY( list_head( &server->queue ), struct console_host_ioctl, entry );
 590         list_remove( &call->entry );
 591         console_host_ioctl_terminate( call, STATUS_CANCELLED );
 592     }
 593     while (!list_empty( &server->read_queue ))
 594     {
 595         struct console_host_ioctl *call = LIST_ENTRY( list_head( &server->read_queue ), struct console_host_ioctl, entry );
 596         list_remove( &call->entry );
 597         console_host_ioctl_terminate( call, STATUS_CANCELLED );
 598     }
 599
 600     if (server->term_fd != -1)
 601     {
 602         tcsetattr( server->term_fd, TCSANOW, &server->termios );
 603         close( server->term_fd );
 604         server->term_fd = -1;
 605     }
 606
 607     if (server->console)
 608     {
 609         assert( server->console->server == server );
 610         server->console->server = NULL;
 611         server->console = NULL;
 612         wake_up( &server->obj, 0 );
 613     }
 614 }
 615
 616 static void set_active_screen_buffer( struct console *console, struct screen_buffer *screen_buffer )
 617 {
 618     if (console->active == screen_buffer) return;
 619     if (console->active) release_object( console->active );
 620     console->active = (struct screen_buffer *)grab_object( screen_buffer );
 621
 622     if (console->server) queue_host_ioctl( console->server, IOCTL_CONDRV_ACTIVATE,
 623                                            screen_buffer->id, NULL, NULL );
 624 }
 625
 626 static struct object *create_screen_buffer( struct console *console )
 627 {
 628     struct screen_buffer *screen_buffer;
 629
 630     if (console->last_id == ~0)
 631     {
 632         set_error( STATUS_NO_MEMORY );
 633         return NULL;
 634     }
 635
 636     if (!(screen_buffer = alloc_object( &screen_buffer_ops )))
 637         return NULL;
 638
 639     screen_buffer->id    = ++console->last_id;
 640     screen_buffer->input = console;
 641     init_async_queue( &screen_buffer->ioctl_q );
 642     list_add_head( &screen_buffer_list, &screen_buffer->entry );
 643
 644     screen_buffer->fd = alloc_pseudo_fd( &screen_buffer_fd_ops, &screen_buffer->obj,
 645                                          FILE_SYNCHRONOUS_IO_NONALERT );
 646     if (!screen_buffer->fd)
 647     {
 648         release_object( screen_buffer );
 649         return NULL;
 650     }
 651     allow_fd_caching(screen_buffer->fd);
 652
 653     if (console->server) queue_host_ioctl( console->server, IOCTL_CONDRV_INIT_OUTPUT,
 654                                            screen_buffer->id, NULL, NULL );
 655     if (!console->active) set_active_screen_buffer( console, screen_buffer );
 656     return &screen_buffer->obj;
 657 }
 658
 659 struct thread *console_get_renderer( struct console *console )
 660 {
 661     return console->renderer;
 662 }
 663
 664 struct console_signal_info
 665 {
 666     struct console        *console;
 667     process_id_t           group;
 668     int                    signal;
 669 };
 670
 671 static int propagate_console_signal_cb(struct process *process, void *user)
 672 {
 673     struct console_signal_info* csi = (struct console_signal_info*)user;
 674
 675     if (process->console == csi->console && (!csi->group || process->group_id == csi->group))
 676     {
 677         /* find a suitable thread to signal */
 678         struct thread *thread;
 679         LIST_FOR_EACH_ENTRY( thread, &process->thread_list, struct thread, proc_entry )
 680         {
 681             if (send_thread_signal( thread, csi->signal )) break;
 682         }
 683     }
 684     return FALSE;
 685 }
 686
 687 static void propagate_console_signal( struct console *console,
 688                                       int sig, process_id_t group_id )
 689 {
 690     struct console_signal_info csi;
 691
 692     if (!console)
 693     {
 694         set_error( STATUS_INVALID_PARAMETER );
 695         return;
 696     }
 697     /* FIXME: should support the other events (like CTRL_BREAK) */
 698     if (sig != CTRL_C_EVENT)
 699     {
 700         set_error( STATUS_NOT_IMPLEMENTED );
 701         return;
 702     }
 703     csi.console = console;
 704     csi.signal  = SIGINT;
 705     csi.group   = group_id;
 706
 707     enum_processes(propagate_console_signal_cb, &csi);
 708 }
 709
 710 struct console_process_list
 711 {
 712     unsigned int    size;
 713     unsigned int    count;
 714     process_id_t   *processes;
 715     struct console *console;
 716 };
 717
 718 static int console_process_list_cb(struct process *process, void *user)
 719 {
 720     struct console_process_list *cpl = user;
 721
 722     if (process->console == cpl->console)
 723     {
 724         if (cpl->count < cpl->size) cpl->processes[cpl->count] = process->id;
 725         cpl->count++;
 726     }
 727
 728     return 0;
 729 }
 730
 731 /* dumb dump */
 732 static void console_dump( struct object *obj, int verbose )
 733 {
 734     struct console *console = (struct console *)obj;
 735     assert( obj->ops == &console_ops );
 736     fprintf( stderr, "Console input active=%p server=%p\n",
 737              console->active, console->server );
 738 }
 739
 740 static void console_destroy( struct object *obj )
 741 {
 742     struct console *console = (struct console *)obj;
 743     struct screen_buffer *curr;
 744
 745     assert( obj->ops == &console_ops );
 746
 747     if (console->server)
 748     {
 749         assert( console->server->console == console );
 750         disconnect_console_server( console->server );
 751     }
 752
 753     if (console->active) release_object( console->active );
 754     console->active = NULL;
 755
 756     LIST_FOR_EACH_ENTRY( curr, &screen_buffer_list, struct screen_buffer, entry )
 757     {
 758         if (curr->input == console) curr->input = NULL;
 759     }
 760
 761     free_async_queue( &console->ioctl_q );
 762     free_async_queue( &console->read_q );
 763     if (console->fd)
 764         release_object( console->fd );
 765 }
 766
 767 static struct object *create_console_connection( struct console *console )
 768 {
 769     struct console_connection *connection;
 770
 771     if (current->process->console)
 772     {
 773         set_error( STATUS_ACCESS_DENIED );
 774         return NULL;
 775     }
 776
 777     if (!(connection = alloc_object( &console_connection_ops ))) return NULL;
 778     if (!(connection->fd = alloc_pseudo_fd( &console_connection_fd_ops, &connection->obj, 0 )))
 779     {
 780         release_object( connection );
 781         return NULL;
 782     }
 783
 784     if (console)
 785         current->process->console = (struct console *)grab_object( console );
 786
 787     return &connection->obj;
 788 }
 789
 790 static struct object *console_lookup_name( struct object *obj, struct unicode_str *name,
 791                                            unsigned int attr, struct object *root )
 792 {
 793     struct console *console = (struct console *)obj;
 794     static const WCHAR connectionW[]    = {'C','o','n','n','e','c','t','i','o','n'};
 795     assert( obj->ops == &console_ops );
 796
 797     if (name->len == sizeof(connectionW) && !memcmp( name->str, connectionW, name->len ))
 798     {
 799         name->len = 0;
 800         return create_console_connection( console );
 801     }
 802
 803     return NULL;
 804 }
 805
 806 static struct object *console_open_file( struct object *obj, unsigned int access,
 807                                                unsigned int sharing, unsigned int options )
 808 {
 809     return grab_object( obj );
 810 }
 811
 812 static void screen_buffer_dump( struct object *obj, int verbose )
 813 {
 814     struct screen_buffer *screen_buffer = (struct screen_buffer *)obj;
 815     assert( obj->ops == &screen_buffer_ops );
 816
 817     fprintf(stderr, "Console screen buffer input=%p\n", screen_buffer->input );
 818 }
 819
 820 static void screen_buffer_destroy( struct object *obj )
 821 {
 822     struct screen_buffer *screen_buffer = (struct screen_buffer *)obj;
 823
 824     assert( obj->ops == &screen_buffer_ops );
 825
 826     list_remove( &screen_buffer->entry );
 827     if (screen_buffer->input && screen_buffer->input->server)
 828         queue_host_ioctl( screen_buffer->input->server, IOCTL_CONDRV_CLOSE_OUTPUT,
 829                           screen_buffer->id, NULL, NULL );
 830     if (screen_buffer->fd) release_object( screen_buffer->fd );
 831     free_async_queue( &screen_buffer->ioctl_q );
 832 }
 833
 834 static struct object *screen_buffer_open_file( struct object *obj, unsigned int access,
 835                                                unsigned int sharing, unsigned int options )
 836 {
 837     return grab_object( obj );
 838 }
 839
 840 static int screen_buffer_add_queue( struct object *obj, struct wait_queue_entry *entry )
 841 {
 842     struct screen_buffer *screen_buffer = (struct screen_buffer*)obj;
 843     if (!screen_buffer->input)
 844     {
 845         set_error( STATUS_ACCESS_DENIED );
 846         return 0;
 847     }
 848     return console_add_queue( &screen_buffer->input->obj, entry );
 849 }
 850
 851 static struct fd *screen_buffer_get_fd( struct object *obj )
 852 {
 853     struct screen_buffer *screen_buffer = (struct screen_buffer*)obj;
 854     assert( obj->ops == &screen_buffer_ops );
 855     if (screen_buffer->fd)
 856         return (struct fd*)grab_object( screen_buffer->fd );
 857     set_error( STATUS_OBJECT_TYPE_MISMATCH );
 858     return NULL;
 859 }
 860
 861 static void console_server_dump( struct object *obj, int verbose )
 862 {
 863     assert( obj->ops == &console_server_ops );
 864     fprintf( stderr, "Console server\n" );
 865 }
 866
 867 static void console_server_destroy( struct object *obj )
 868 {
 869     struct console_server *server = (struct console_server *)obj;
 870     assert( obj->ops == &console_server_ops );
 871     disconnect_console_server( server );
 872     if (server->fd) release_object( server->fd );
 873 }
 874
 875 static struct object *console_server_lookup_name( struct object *obj, struct unicode_str *name,
 876                                                   unsigned int attr, struct object *root )
 877 {
 878     struct console_server *server = (struct console_server*)obj;
 879     static const WCHAR referenceW[] = {'R','e','f','e','r','e','n','c','e'};
 880     assert( obj->ops == &console_server_ops );
 881
 882     if (name->len == sizeof(referenceW) && !memcmp( name->str, referenceW, name->len ))
 883     {
 884         struct screen_buffer *screen_buffer;
 885         name->len = 0;
 886         if (server->console)
 887         {
 888             set_error( STATUS_INVALID_HANDLE );
 889             return 0;
 890         }
 891         if (!(server->console = (struct console *)create_console())) return NULL;
 892         if (!(screen_buffer = (struct screen_buffer *)create_screen_buffer( server->console )))
 893         {
 894             release_object( server->console );
 895             server->console = NULL;
 896             return NULL;
 897         }
 898         release_object( screen_buffer );
 899         server->console->server = server;
 900
 901         return &server->console->obj;
 902     }
 903
 904     return NULL;
 905 }
 906
 907 static int console_server_signaled( struct object *obj, struct wait_queue_entry *entry )
 908 {
 909     struct console_server *server = (struct console_server*)obj;
 910     assert( obj->ops == &console_server_ops );
 911     return !server->console || !list_empty( &server->queue );
 912 }
 913
 914 static struct fd *console_server_get_fd( struct object* obj )
 915 {
 916     struct console_server *server = (struct console_server*)obj;
 917     assert( obj->ops == &console_server_ops );
 918     return (struct fd *)grab_object( server->fd );
 919 }
 920
 921 static struct object *console_server_open_file( struct object *obj, unsigned int access,
 922                                                 unsigned int sharing, unsigned int options )
 923 {
 924     return grab_object( obj );
 925 }
 926
 927 static struct object *create_console_server( void )
 928 {
 929     struct console_server *server;
 930
 931     if (!(server = alloc_object( &console_server_ops ))) return NULL;
 932     server->console    = NULL;
 933     server->busy       = 0;
 934     server->once_input = 0;
 935     server->term_fd    = -1;
 936     list_init( &server->queue );
 937     list_init( &server->read_queue );
 938     server->fd = alloc_pseudo_fd( &console_server_fd_ops, &server->obj, FILE_SYNCHRONOUS_IO_NONALERT );
 939     if (!server->fd)
 940     {
 941         release_object( server );
 942         return NULL;
 943     }
 944     allow_fd_caching(server->fd);
 945
 946     return &server->obj;
 947 }
 948
 949 static int is_blocking_read_ioctl( unsigned int code )
 950 {
 951     switch (code)
 952     {
 953     case IOCTL_CONDRV_READ_INPUT:
 954     case IOCTL_CONDRV_READ_CONSOLE:
 955     case IOCTL_CONDRV_READ_CONSOLE_CONTROL:
 956     case IOCTL_CONDRV_READ_FILE:
 957         return 1;
 958     default:
 959         return 0;
 960     }
 961 }
 962
 963 static void console_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
 964 {
 965     struct console *console = get_fd_user( fd );
 966
 967     switch (code)
 968     {
 969     case IOCTL_CONDRV_CTRL_EVENT:
 970         {
 971             const struct condrv_ctrl_event *event = get_req_data();
 972             process_id_t group;
 973             if (get_req_data_size() != sizeof(*event))
 974             {
 975                 set_error( STATUS_INVALID_PARAMETER );
 976                 return;
 977             }
 978             group = event->group_id ? event->group_id : current->process->group_id;
 979             if (!group)
 980             {
 981                 set_error( STATUS_INVALID_PARAMETER );
 982                 return;
 983             }
 984             propagate_console_signal( console, event->event, group );
 985             return;
 986         }
 987
 988     case IOCTL_CONDRV_GET_PROCESS_LIST:
 989         {
 990             struct console_process_list cpl;
 991             if (get_reply_max_size() < sizeof(unsigned int))
 992             {
 993                 set_error( STATUS_INVALID_PARAMETER );
 994                 return;
 995             }
 996
 997             cpl.count = 0;
 998             cpl.size = 0;
 999             cpl.console = console;
1000             enum_processes( console_process_list_cb, &cpl );
1001             if (cpl.count * sizeof(process_id_t) > get_reply_max_size())
1002             {
1003                 set_reply_data( &cpl.count, sizeof(cpl.count) );
1004                 set_error( STATUS_BUFFER_TOO_SMALL );
1005                 return;
1006             }
1007
1008             cpl.size = cpl.count;
1009             cpl.count = 0;
1010             if ((cpl.processes = set_reply_data_size( cpl.size * sizeof(process_id_t) )))
1011                 enum_processes( console_process_list_cb, &cpl );
1012             return;
1013         }
1014
1015     default:
1016         if (!console->server || code >> 16 != FILE_DEVICE_CONSOLE)
1017         {
1018             set_error( STATUS_INVALID_HANDLE );
1019             return;
1020         }
1021         queue_host_ioctl( console->server, code, 0, async, &console->ioctl_q );
1022     }
1023 }
1024
1025 static void console_read( struct fd *fd, struct async *async, file_pos_t pos )
1026 {
1027     struct console *console = get_fd_user( fd );
1028
1029     if (!console->server)
1030     {
1031         set_error( STATUS_INVALID_HANDLE );
1032         return;
1033     }
1034     queue_host_ioctl( console->server, IOCTL_CONDRV_READ_FILE, 0, async, &console->ioctl_q );
1035 }
1036
1037 static void console_flush( struct fd *fd, struct async *async )
1038 {
1039     struct console *console = get_fd_user( fd );
1040
1041     if (!console->server)
1042     {
1043         set_error( STATUS_INVALID_HANDLE );
1044         return;
1045     }
1046     queue_host_ioctl( console->server, IOCTL_CONDRV_FLUSH, 0, NULL, NULL );
1047 }
1048
1049 static void screen_buffer_write( struct fd *fd, struct async *async, file_pos_t pos )
1050 {
1051     struct screen_buffer *screen_buffer = get_fd_user( fd );
1052
1053     if (!screen_buffer->input || !screen_buffer->input->server)
1054     {
1055         set_error( STATUS_INVALID_HANDLE );
1056         return;
1057     }
1058
1059     queue_host_ioctl( screen_buffer->input->server, IOCTL_CONDRV_WRITE_FILE,
1060                       screen_buffer->id, async, &screen_buffer->ioctl_q );
1061 }
1062
1063 static void screen_buffer_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
1064 {
1065     struct screen_buffer *screen_buffer = get_fd_user( fd );
1066
1067     switch (code)
1068     {
1069     case IOCTL_CONDRV_ACTIVATE:
1070         if (!screen_buffer->input)
1071         {
1072             set_error( STATUS_INVALID_HANDLE );
1073             return;
1074         }
1075
1076         set_active_screen_buffer( screen_buffer->input, screen_buffer );
1077         return;
1078
1079     default:
1080         if (!screen_buffer->input || !screen_buffer->input->server || code >> 16 != FILE_DEVICE_CONSOLE ||
1081             is_blocking_read_ioctl( code ))
1082         {
1083             set_error( STATUS_INVALID_HANDLE );
1084             return;
1085         }
1086         queue_host_ioctl( screen_buffer->input->server, code, screen_buffer->id,
1087                           async, &screen_buffer->ioctl_q );
1088     }
1089 }
1090
1091 static void console_connection_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
1092 {
1093     struct console_connection *console_connection = get_fd_user( fd );
1094
1095     switch (code)
1096     {
1097     case IOCTL_CONDRV_BIND_PID:
1098         {
1099             struct process *process;
1100             unsigned int pid;
1101             if (get_req_data_size() != sizeof(unsigned int))
1102             {
1103                 set_error( STATUS_INVALID_PARAMETER );
1104                 return;
1105             }
1106             if (current->process->console)
1107             {
1108                 set_error( STATUS_INVALID_HANDLE );
1109                 return;
1110             }
1111
1112             pid = *(unsigned int *)get_req_data();
1113             if (pid == ATTACH_PARENT_PROCESS) pid = current->process->parent_id;
1114             if (!(process = get_process_from_id( pid ))) return;
1115
1116             if (process->console)
1117                 current->process->console = (struct console *)grab_object( process->console );
1118             else set_error( STATUS_ACCESS_DENIED );
1119             release_object( process );
1120             return;
1121         }
1122
1123     default:
1124         default_fd_ioctl( console_connection->fd, code, async );
1125     }
1126 }
1127
1128 static void console_server_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
1129 {
1130     struct console_server *server = get_fd_user( fd );
1131
1132     switch (code)
1133     {
1134     case IOCTL_CONDRV_CTRL_EVENT:
1135         {
1136             const struct condrv_ctrl_event *event = get_req_data();
1137             if (get_req_data_size() != sizeof(*event))
1138             {
1139                 set_error( STATUS_INVALID_PARAMETER );
1140                 return;
1141             }
1142             if (!server->console)
1143             {
1144                 set_error( STATUS_INVALID_HANDLE );
1145                 return;
1146             }
1147             propagate_console_signal( server->console, event->event, event->group_id );
1148             return;
1149         }
1150
1151     case IOCTL_CONDRV_SETUP_INPUT:
1152         {
1153             struct termios term;
1154             obj_handle_t handle;
1155             struct file *file;
1156             int unix_fd;
1157
1158             if (get_req_data_size() != sizeof(unsigned int) || get_reply_max_size())
1159             {
1160                 set_error( STATUS_INVALID_PARAMETER );
1161                 return;
1162             }
1163             if (server->term_fd != -1)
1164             {
1165                 tcsetattr( server->term_fd, TCSANOW, &server->termios );
1166                 close( server->term_fd );
1167                 server->term_fd = -1;
1168             }
1169             handle = *(unsigned int *)get_req_data();
1170             if (!handle) return;
1171             if (!(file = get_file_obj( current->process, handle, FILE_READ_DATA  )))
1172             {
1173                 return;
1174             }
1175             unix_fd = get_file_unix_fd( file );
1176             release_object( file );
1177
1178             if (tcgetattr( unix_fd, &server->termios ))
1179             {
1180                 file_set_error();
1181                 return;
1182             }
1183             term = server->termios;
1184             term.c_lflag &= ~(ECHO | ECHONL | ICANON | IEXTEN);
1185             term.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
1186             term.c_cflag &= ~(CSIZE | PARENB);
1187             term.c_cflag |= CS8;
1188             term.c_cc[VMIN] = 1;
1189             term.c_cc[VTIME] = 0;
1190             if (tcsetattr( unix_fd, TCSANOW, &term ) || (server->term_fd = dup( unix_fd )) == -1)
1191                 file_set_error();
1192             return;
1193         }
1194
1195     default:
1196         set_error( STATUS_INVALID_HANDLE );
1197         return;
1198     }
1199 }
1200
1201 static void console_connection_dump( struct object *obj, int verbose )
1202 {
1203     fputs( "console connection\n", stderr );
1204 }
1205
1206 static struct fd *console_connection_get_fd( struct object *obj )
1207 {
1208     struct console_connection *connection = (struct console_connection *)obj;
1209     return (struct fd *)grab_object( connection->fd );
1210 }
1211
1212 static struct object *console_connection_lookup_name( struct object *obj, struct unicode_str *name,
1213                                                       unsigned int attr, struct object *root )
1214 {
1215     static const WCHAR referenceW[] = {'R','e','f','e','r','e','n','c','e'};
1216
1217     if (name->len == sizeof(referenceW) && !memcmp( name->str, referenceW, name->len ))
1218     {
1219         if (!current->process->console)
1220         {
1221             set_error( STATUS_INVALID_HANDLE );
1222             return NULL;
1223         }
1224         name->len = 0;
1225         return grab_object( current->process->console );
1226     }
1227
1228     return NULL;
1229 }
1230
1231 static struct object *console_connection_open_file( struct object *obj, unsigned int access,
1232                                                     unsigned int sharing, unsigned int options )
1233 {
1234     return grab_object( obj );
1235 }
1236
1237 static int console_connection_close_handle( struct object *obj, struct process *process, obj_handle_t handle )
1238 {
1239     struct console *console = process->console;
1240
1241     if (console)
1242     {
1243         process->console = NULL;
1244         release_object( console );
1245     }
1246     return 1;
1247 }
1248
1249 static void console_connection_destroy( struct object *obj )
1250 {
1251     struct console_connection *connection = (struct console_connection *)obj;
1252     if (connection->fd) release_object( connection->fd );
1253 }
1254
1255 static void console_device_dump( struct object *obj, int verbose )
1256 {
1257     fputs( "Console device\n", stderr );
1258 }
1259
1260 static struct object *console_device_lookup_name( struct object *obj, struct unicode_str *name,
1261                                                   unsigned int attr, struct object *root )
1262 {
1263     static const WCHAR connectionW[]    = {'C','o','n','n','e','c','t','i','o','n'};
1264     static const WCHAR consoleW[]       = {'C','o','n','s','o','l','e'};
1265     static const WCHAR current_inW[]    = {'C','u','r','r','e','n','t','I','n'};
1266     static const WCHAR current_outW[]   = {'C','u','r','r','e','n','t','O','u','t'};
1267     static const WCHAR inputW[]         = {'I','n','p','u','t'};
1268     static const WCHAR outputW[]        = {'O','u','t','p','u','t'};
1269     static const WCHAR screen_bufferW[] = {'S','c','r','e','e','n','B','u','f','f','e','r'};
1270     static const WCHAR serverW[]        = {'S','e','r','v','e','r'};
1271
1272     if (name->len == sizeof(current_inW) && !memcmp( name->str, current_inW, name->len ))
1273     {
1274         if (!current->process->console)
1275         {
1276             set_error( STATUS_INVALID_HANDLE );
1277             return NULL;
1278         }
1279         name->len = 0;
1280         return grab_object( current->process->console );
1281     }
1282
1283     if (name->len == sizeof(current_outW) && !memcmp( name->str, current_outW, name->len ))
1284     {
1285         if (!current->process->console || !current->process->console->active)
1286         {
1287             set_error( STATUS_INVALID_HANDLE );
1288             return NULL;
1289         }
1290         name->len = 0;
1291         return grab_object( current->process->console->active );
1292     }
1293
1294     if (name->len == sizeof(consoleW) && !memcmp( name->str, consoleW, name->len ))
1295     {
1296         name->len = 0;
1297         return grab_object( obj );
1298     }
1299
1300     if (name->len == sizeof(inputW) && !memcmp( name->str, inputW, name->len ))
1301     {
1302         struct console_input *console_input;
1303         name->len = 0;
1304         if (!(console_input = alloc_object( &console_input_ops ))) return NULL;
1305         console_input->fd = alloc_pseudo_fd( &console_input_fd_ops, &console_input->obj,
1306                                              FILE_SYNCHRONOUS_IO_NONALERT );
1307         if (!console_input->fd)
1308         {
1309             release_object( console_input );
1310             return NULL;
1311         }
1312         return &console_input->obj;
1313     }
1314
1315     if (name->len == sizeof(outputW) && !memcmp( name->str, outputW, name->len ))
1316     {
1317         struct console_output *console_output;
1318         name->len = 0;
1319         if (!(console_output = alloc_object( &console_output_ops ))) return NULL;
1320         console_output->fd = alloc_pseudo_fd( &console_output_fd_ops, &console_output->obj,
1321                                              FILE_SYNCHRONOUS_IO_NONALERT );
1322         if (!console_output->fd)
1323         {
1324             release_object( console_output );
1325             return NULL;
1326         }
1327         return &console_output->obj;
1328     }
1329
1330     if (name->len == sizeof(screen_bufferW) && !memcmp( name->str, screen_bufferW, name->len ))
1331     {
1332         if (!current->process->console)
1333         {
1334             set_error( STATUS_INVALID_HANDLE );
1335             return NULL;
1336         }
1337         name->len = 0;
1338         return create_screen_buffer( current->process->console );
1339     }
1340
1341     if (name->len == sizeof(serverW) && !memcmp( name->str, serverW, name->len ))
1342     {
1343         name->len = 0;
1344         return create_console_server();
1345     }
1346
1347     if (name->len == sizeof(connectionW) && !memcmp( name->str, connectionW, name->len ))
1348     {
1349         name->len = 0;
1350         return create_console_connection( NULL );
1351     }
1352
1353     return NULL;
1354 }
1355
1356 static struct object *console_device_open_file( struct object *obj, unsigned int access,
1357                                                 unsigned int sharing, unsigned int options )
1358 {
1359     int is_output;
1360     access = default_map_access( obj, access );
1361     is_output = access & FILE_WRITE_DATA;
1362     if (!current->process->console || (is_output && !current->process->console))
1363     {
1364         set_error( STATUS_INVALID_HANDLE );
1365         return NULL;
1366     }
1367     if (is_output && (access & FILE_READ_DATA))
1368     {
1369         set_error( STATUS_INVALID_PARAMETER );
1370         return NULL;
1371     }
1372     return is_output ? grab_object( current->process->console->active ) : grab_object( current->process->console );
1373 }
1374
1375 static void console_input_dump( struct object *obj, int verbose )
1376 {
1377     fputs( "console Input device\n", stderr );
1378 }
1379
1380 static int console_input_add_queue( struct object *obj, struct wait_queue_entry *entry )
1381 {
1382     if (!current->process->console)
1383     {
1384         set_error( STATUS_ACCESS_DENIED );
1385         return 0;
1386     }
1387     return console_add_queue( &current->process->console->obj, entry );
1388 }
1389
1390 static struct fd *console_input_get_fd( struct object *obj )
1391 {
1392     struct console_input *console_input = (struct console_input *)obj;
1393     assert( obj->ops == &console_input_ops );
1394     return (struct fd *)grab_object( console_input->fd );
1395 }
1396
1397 static struct object *console_input_open_file( struct object *obj, unsigned int access,
1398                                                unsigned int sharing, unsigned int options )
1399 {
1400     return grab_object( obj );
1401 }
1402
1403 static void console_input_destroy( struct object *obj )
1404 {
1405     struct console_input *console_input = (struct console_input *)obj;
1406
1407     assert( obj->ops == &console_input_ops );
1408     if (console_input->fd) release_object( console_input->fd );
1409 }
1410
1411 static void console_input_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
1412 {
1413     struct console *console = current->process->console;
1414
1415     if (!console)
1416     {
1417         set_error( STATUS_INVALID_HANDLE );
1418         return;
1419     }
1420     console_ioctl( console->fd, code, async );
1421 }
1422
1423 static void console_input_read( struct fd *fd, struct async *async, file_pos_t pos )
1424 {
1425     struct console *console = current->process->console;
1426
1427     if (!console)
1428     {
1429         set_error( STATUS_INVALID_HANDLE );
1430         return;
1431     }
1432     console_read( console->fd, async, pos );
1433 }
1434
1435 static void console_input_flush( struct fd *fd, struct async *async )
1436 {
1437     struct console *console = current->process->console;
1438
1439     if (!console)
1440     {
1441         set_error( STATUS_INVALID_HANDLE );
1442         return;
1443     }
1444     console_flush( console->fd, async );
1445 }
1446
1447 static void console_output_dump( struct object *obj, int verbose )
1448 {
1449     fputs( "console Output device\n", stderr );
1450 }
1451
1452 static int console_output_add_queue( struct object *obj, struct wait_queue_entry *entry )
1453 {
1454     if (!current->process->console || !current->process->console->active)
1455     {
1456         set_error( STATUS_ACCESS_DENIED );
1457         return 0;
1458     }
1459     return console_add_queue( &current->process->console->obj, entry );
1460 }
1461
1462 static struct fd *console_output_get_fd( struct object *obj )
1463 {
1464     struct console_output *console_output = (struct console_output *)obj;
1465     assert( obj->ops == &console_output_ops );
1466     return (struct fd *)grab_object( console_output->fd );
1467 }
1468
1469 static struct object *console_output_open_file( struct object *obj, unsigned int access,
1470                                                 unsigned int sharing, unsigned int options )
1471 {
1472     return grab_object( obj );
1473 }
1474
1475 static void console_output_destroy( struct object *obj )
1476 {
1477     struct console_output *console_output = (struct console_output *)obj;
1478
1479     assert( obj->ops == &console_output_ops );
1480     if (console_output->fd) release_object( console_output->fd );
1481 }
1482
1483 static void console_output_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
1484 {
1485     struct console *console = current->process->console;
1486
1487     if (!console || !console->active)
1488     {
1489         set_error( STATUS_INVALID_HANDLE );
1490         return;
1491     }
1492     screen_buffer_ioctl( console->active->fd, code, async );
1493 }
1494
1495 static void console_output_write( struct fd *fd, struct async *async, file_pos_t pos )
1496 {
1497     struct console *console = current->process->console;
1498
1499     if (!console || !console->active)
1500     {
1501         set_error( STATUS_INVALID_HANDLE );
1502         return;
1503     }
1504     screen_buffer_write( console->active->fd, async, pos );
1505 }
1506
1507 struct object *create_console_device( struct object *root, const struct unicode_str *name,
1508                                       unsigned int attr, const struct security_descriptor *sd )
1509 {
1510     return create_named_object( root, &console_device_ops, name, attr, sd );
1511 }
1512
1513 /* retrieve the next pending console ioctl request */
1514 DECL_HANDLER(get_next_console_request)
1515 {
1516     struct console_host_ioctl *ioctl = NULL, *next;
1517     struct console_server *server;
1518     struct iosb *iosb = NULL;
1519
1520     server = (struct console_server *)get_handle_obj( current->process, req->handle, 0, &console_server_ops );
1521     if (!server) return;
1522
1523     if (!server->console)
1524     {
1525         set_error( STATUS_INVALID_HANDLE );
1526         release_object( server );
1527         return;
1528     }
1529
1530     if (!server->console->renderer) server->console->renderer = current;
1531
1532     if (!req->signal) server->console->signaled = 0;
1533     else if (!server->console->signaled)
1534     {
1535         server->console->signaled = 1;
1536         wake_up( &server->console->obj, 0 );
1537     }
1538
1539     if (req->read)
1540     {
1541         /* set result of current pending ioctl */
1542         if (list_empty( &server->read_queue ))
1543         {
1544             set_error( STATUS_INVALID_HANDLE );
1545             release_object( server );
1546             return;
1547         }
1548
1549         ioctl = LIST_ENTRY( list_head( &server->read_queue ), struct console_host_ioctl, entry );
1550         list_remove( &ioctl->entry );
1551         list_move_tail( &server->queue, &server->read_queue );
1552     }
1553     else if (server->busy)
1554     {
1555         /* set result of previous ioctl */
1556         ioctl = LIST_ENTRY( list_head( &server->queue ), struct console_host_ioctl, entry );
1557         list_remove( &ioctl->entry );
1558     }
1559
1560     if (ioctl)
1561     {
1562         struct async *async = ioctl->async;
1563         unsigned int status = req->status;
1564
1565         if (status == STATUS_PENDING) status = STATUS_INVALID_PARAMETER;
1566         if (async)
1567         {
1568             iosb = async_get_iosb( async );
1569             if (iosb->status == STATUS_PENDING)
1570             {
1571                 data_size_t out_size = min( iosb->out_size, get_req_data_size() );
1572                 data_size_t result = ioctl->code == IOCTL_CONDRV_WRITE_FILE ? iosb->in_size : out_size;
1573                 async_request_complete_alloc( async, status, result, out_size, get_req_data() );
1574             }
1575
1576             release_object( async );
1577         }
1578         free( ioctl );
1579         if (iosb) release_object( iosb );
1580
1581         if (req->read)
1582         {
1583             release_object( server );
1584             return;
1585         }
1586         server->busy = 0;
1587     }
1588
1589     /* if we have a blocking read ioctl in queue head and previous blocking read is still waiting,
1590      * move it to read queue for execution after current read is complete. move all blocking
1591      * ioctl at the same time to preserve their order. */
1592     if (!list_empty( &server->queue ) && !list_empty( &server->read_queue ))
1593     {
1594         ioctl = LIST_ENTRY( list_head( &server->queue ), struct console_host_ioctl, entry );
1595         if (is_blocking_read_ioctl( ioctl->code ))
1596         {
1597             LIST_FOR_EACH_ENTRY_SAFE( ioctl, next, &server->queue, struct console_host_ioctl, entry )
1598             {
1599                 if (!is_blocking_read_ioctl( ioctl->code )) continue;
1600                 list_remove( &ioctl->entry );
1601                 list_add_tail( &server->read_queue, &ioctl->entry );
1602             }
1603         }
1604     }
1605
1606     /* return the next ioctl */
1607     if (!list_empty( &server->queue ))
1608     {
1609         ioctl = LIST_ENTRY( list_head( &server->queue ), struct console_host_ioctl, entry );
1610         iosb = ioctl->async ? async_get_iosb( ioctl->async ) : NULL;
1611
1612         if (!iosb || get_reply_max_size() >= iosb->in_size)
1613         {
1614             reply->code   = ioctl->code;
1615             reply->output = ioctl->output;
1616
1617             if (iosb)
1618             {
1619                 reply->out_size = iosb->out_size;
1620                 set_reply_data_ptr( iosb->in_data, iosb->in_size );
1621                 iosb->in_data = NULL;
1622             }
1623
1624             if (is_blocking_read_ioctl( ioctl->code ))
1625             {
1626                 list_remove( &ioctl->entry );
1627                 assert( list_empty( &server->read_queue ));
1628                 list_add_tail( &server->read_queue, &ioctl->entry );
1629             }
1630             else server->busy = 1;
1631         }
1632         else
1633         {
1634             reply->out_size = iosb->in_size;
1635             set_error( STATUS_BUFFER_OVERFLOW );
1636         }
1637         if (iosb) release_object( iosb );
1638     }
1639     else
1640     {
1641         set_error( STATUS_PENDING );
1642     }
1643
1644     release_object( server );
1645 }