server/smb.c

   1 /*
   2  * Server-side smb network file management
   3  *
   4  * Copyright (C) 1998 Alexandre Julliard
   5  * Copyright (C) 2000, 2001, 2002 Mike McCormack
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  * FIXME: if you can't find something to fix,
  22  *          you're not looking hard enough
  23  */
  24
  25 #include "config.h"
  26
  27 #include <assert.h>
  28 #include <fcntl.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include <stdlib.h>
  32 #include <errno.h>
  33 #ifdef HAVE_SYS_ERRNO_H
  34 #include <sys/errno.h>
  35 #endif
  36 #include <sys/time.h>
  37 #include <sys/types.h>
  38 #include <time.h>
  39 #include <unistd.h>
  40 #include <utime.h>
  41 #include <termios.h>
  42 #include <sys/ioctl.h>
  43
  44 #include "winerror.h"
  45 #include "winbase.h"
  46
  47 #include "handle.h"
  48 #include "thread.h"
  49 #include "request.h"
  50
  51 static void smb_dump( struct object *obj, int verbose );
  52 static int smb_get_fd( struct object *obj );
  53 static int smb_get_info( struct object *obj, struct get_file_info_reply *reply, int *flags );
  54 static int smb_get_poll_events( struct object *obj );
  55 static void destroy_smb(struct object *obj);
  56
  57 struct smb
  58 {
  59     struct object       obj;
  60     unsigned int        tree_id;
  61     unsigned int        user_id;
  62     unsigned int        dialect;
  63     unsigned int        file_id;
  64     unsigned int        offset;
  65 };
  66
  67 static const struct object_ops smb_ops =
  68 {
  69     sizeof(struct smb),        /* size */
  70     smb_dump,                  /* dump */
  71     default_poll_add_queue,    /* add_queue */
  72     default_poll_remove_queue, /* remove_queue */
  73     default_poll_signaled,     /* signaled */
  74     no_satisfied,              /* satisfied */
  75     smb_get_poll_events,       /* get_poll_events */
  76     default_poll_event,        /* poll_event */
  77     smb_get_fd,                /* get_fd */
  78     no_flush,                  /* flush */
  79     smb_get_info,              /* get_file_info */
  80     NULL,                      /* queue_async */
  81     destroy_smb                /* destroy */
  82 };
  83
  84 static void destroy_smb( struct object *obj)
  85 {
  86     /* struct smb *smb = (struct smb *)obj; */
  87     assert( obj->ops == &smb_ops );
  88 }
  89
  90 static void smb_dump( struct object *obj, int verbose )
  91 {
  92     struct smb *smb = (struct smb *)obj;
  93     assert( obj->ops == &smb_ops );
  94     fprintf( stderr, "smb file with socket fd=%d \n", smb->obj.fd );
  95 }
  96
  97 struct smb *get_smb_obj( struct process *process, obj_handle_t handle, unsigned int access )
  98 {
  99     return (struct smb *)get_handle_obj( process, handle, access, &smb_ops );
 100 }
 101
 102 static int smb_get_poll_events( struct object *obj )
 103 {
 104     /* struct smb *smb = (struct smb *)obj; */
 105     int events = 0;
 106     assert( obj->ops == &smb_ops );
 107
 108     events |= POLLIN;
 109
 110     /* fprintf(stderr,"poll events are %04x\n",events); */
 111
 112     return events;
 113 }
 114
 115 static int smb_get_fd( struct object *obj )
 116 {
 117     struct smb *smb = (struct smb *)obj;
 118     assert( obj->ops == &smb_ops );
 119     return smb->obj.fd;
 120 }
 121
 122 static int smb_get_info( struct object *obj, struct get_file_info_reply *reply, int *flags )
 123 {
 124     /* struct smb *smb = (struct smb *) obj; */
 125     assert( obj->ops == &smb_ops );
 126
 127     if (reply)
 128     {
 129         reply->type        = FILE_TYPE_CHAR;
 130         reply->attr        = 0;
 131         reply->access_time = 0;
 132         reply->write_time  = 0;
 133         reply->size_high   = 0;
 134         reply->size_low    = 0;
 135         reply->links       = 0;
 136         reply->index_high  = 0;
 137         reply->index_low   = 0;
 138         reply->serial      = 0;
 139     }
 140
 141     *flags = 0;
 142
 143     return FD_TYPE_SMB;
 144 }
 145
 146 /* create a smb */
 147 DECL_HANDLER(create_smb)
 148 {
 149     struct smb *smb;
 150     int fd;
 151
 152     reply->handle = 0;
 153
 154     fd = thread_get_inflight_fd( current, req->fd );
 155     if (fd == -1)
 156     {
 157         set_error( STATUS_INVALID_HANDLE );
 158         return;
 159     }
 160
 161     smb = alloc_object( &smb_ops, fd );
 162     if (smb)
 163     {
 164         smb->tree_id = req->tree_id;
 165         smb->user_id = req->user_id;
 166         smb->dialect = req->dialect;
 167         smb->file_id = req->file_id;
 168         smb->offset = 0;
 169         reply->handle = alloc_handle( current->process, smb, GENERIC_READ, 0);
 170         release_object( smb );
 171     }
 172 }
 173
 174 DECL_HANDLER(get_smb_info)
 175 {
 176     struct smb *smb;
 177
 178     if ((smb = get_smb_obj( current->process, req->handle, 0 )))
 179     {
 180         if(req->flags & SMBINFO_SET_OFFSET)
 181             smb->offset = req->offset;
 182
 183         reply->tree_id = smb->tree_id;
 184         reply->user_id = smb->user_id;
 185         reply->dialect = smb->dialect;
 186         reply->file_id = smb->file_id;
 187         reply->offset  = smb->offset;
 188
 189         release_object( smb );
 190     }
 191 }
 192