Sweden-Number/server/smb.c

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/*
* Server-side smb network file management
*
* Copyright (C) 1998 Alexandre Julliard
* Copyright (C) 2000, 2001, 2002 Mike McCormack
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
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* FIXME: if you can't find something to fix,
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* you're not looking hard enough
*/
#include "config.h"
#include <assert.h>
#include <fcntl.h>
#include <stdarg.h>
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
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#ifdef HAVE_UTIME_H
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#include <utime.h>
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#endif
#ifdef HAVE_TERMIOS_H
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#include <termios.h>
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#endif
#ifdef HAVE_SYS_IOCTL_H
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#include <sys/ioctl.h>
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#endif
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#include "winerror.h"
#include "windef.h"
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#include "winbase.h"
#include "file.h"
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#include "handle.h"
#include "thread.h"
#include "request.h"
static void smb_dump( struct object *obj, int verbose );
static struct fd *smb_get_fd( struct object *obj );
static void smb_destroy(struct object *obj);
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static int smb_get_info( struct fd *fd, int *flags );
static int smb_get_poll_events( struct fd *fd );
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struct smb
{
struct object obj;
struct fd *fd;
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unsigned int tree_id;
unsigned int user_id;
unsigned int dialect;
unsigned int file_id;
unsigned int offset;
};
static const struct object_ops smb_ops =
{
sizeof(struct smb), /* size */
smb_dump, /* dump */
default_fd_add_queue, /* add_queue */
default_fd_remove_queue, /* remove_queue */
default_fd_signaled, /* signaled */
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no_satisfied, /* satisfied */
smb_get_fd, /* get_fd */
smb_destroy /* destroy */
};
static const struct fd_ops smb_fd_ops =
{
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smb_get_poll_events, /* get_poll_events */
default_poll_event, /* poll_event */
no_flush, /* flush */
smb_get_info, /* get_file_info */
no_queue_async /* queue_async */
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};
static struct fd *smb_get_fd( struct object *obj )
{
struct smb *smb = (struct smb *)obj;
return (struct fd *)grab_object( smb->fd );
}
static void smb_destroy( struct object *obj)
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{
struct smb *smb = (struct smb *)obj;
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assert( obj->ops == &smb_ops );
if (smb->fd) release_object( smb->fd );
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}
static void smb_dump( struct object *obj, int verbose )
{
struct smb *smb = (struct smb *)obj;
assert( obj->ops == &smb_ops );
fprintf( stderr, "Smb file fd=%p\n", smb->fd );
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}
static struct smb *get_smb_obj( struct process *process, obj_handle_t handle, unsigned int access )
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{
return (struct smb *)get_handle_obj( process, handle, access, &smb_ops );
}
static int smb_get_poll_events( struct fd *fd )
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{
struct smb *smb = get_fd_user( fd );
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int events = 0;
assert( smb->obj.ops == &smb_ops );
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events |= POLLIN;
/* fprintf(stderr,"poll events are %04x\n",events); */
return events;
}
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static int smb_get_info( struct fd *fd, int *flags )
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{
/* struct smb *smb = get_fd_user( fd ); */
/* assert( smb->obj.ops == &smb_ops ); */
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*flags = 0;
return FD_TYPE_SMB;
}
/* create a smb */
DECL_HANDLER(create_smb)
{
struct smb *smb;
int fd;
reply->handle = 0;
fd = thread_get_inflight_fd( current, req->fd );
if (fd == -1)
{
set_error( STATUS_INVALID_HANDLE );
return;
}
if (!(smb = alloc_object( &smb_ops )))
{
close( fd );
return;
}
smb->tree_id = req->tree_id;
smb->user_id = req->user_id;
smb->dialect = req->dialect;
smb->file_id = req->file_id;
smb->offset = 0;
if ((smb->fd = create_anonymous_fd( &smb_fd_ops, fd, &smb->obj )))
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{
reply->handle = alloc_handle( current->process, smb, GENERIC_READ, 0);
}
release_object( smb );
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}
DECL_HANDLER(get_smb_info)
{
struct smb *smb;
if ((smb = get_smb_obj( current->process, req->handle, 0 )))
{
if(req->flags & SMBINFO_SET_OFFSET)
smb->offset = req->offset;
reply->tree_id = smb->tree_id;
reply->user_id = smb->user_id;
reply->dialect = smb->dialect;
reply->file_id = smb->file_id;
reply->offset = smb->offset;
release_object( smb );
}
}