source4/ntvfs/print/vfs_print.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    default print NTVFS backend
   4    Copyright (C) Andrew Tridgell  2003
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19 /*
  20   this implements the print backend, called by the NTVFS subsystem to
  21   handle requests on printing shares
  22 */
  23
  24 #include "includes.h"
  25 #include "../libcli/smb/smb_constants.h"
  26 #include "ntvfs/ntvfs.h"
  27 #include "param/param.h"
  28
  29 NTSTATUS ntvfs_print_init(void);
  30
  31 /*
  32   connect to a share - used when a tree_connect operation comes
  33   in. For printing shares this should check that the spool directory
  34   is available
  35 */
  36 static NTSTATUS print_connect(struct ntvfs_module_context *ntvfs,
  37                               struct ntvfs_request *req, union smb_tcon* tcon)
  38 {
  39         ntvfs->ctx->fs_type = talloc_strdup(ntvfs->ctx, "NTFS");
  40         NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->fs_type);
  41
  42         ntvfs->ctx->dev_type = talloc_strdup(ntvfs->ctx, "LPT1:");
  43         NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->dev_type);
  44
  45         if (tcon->generic.level == RAW_TCON_TCONX) {
  46                 tcon->tconx.out.fs_type = ntvfs->ctx->fs_type;
  47                 tcon->tconx.out.dev_type = ntvfs->ctx->dev_type;
  48         }
  49
  50         return NT_STATUS_OK;
  51 }
  52
  53 /*
  54   disconnect from a share
  55 */
  56 static NTSTATUS print_disconnect(struct ntvfs_module_context *ntvfs)
  57 {
  58         return NT_STATUS_OK;
  59 }
  60
  61 /*
  62   lots of operations are not allowed on printing shares - mostly return NT_STATUS_ACCESS_DENIED
  63 */
  64 static NTSTATUS print_unlink(struct ntvfs_module_context *ntvfs,
  65                              struct ntvfs_request *req,
  66                              union smb_unlink *unl)
  67 {
  68         return NT_STATUS_ACCESS_DENIED;
  69 }
  70
  71
  72 /*
  73   ioctl - used for job query
  74 */
  75 static NTSTATUS print_ioctl(struct ntvfs_module_context *ntvfs,
  76                             struct ntvfs_request *req, union smb_ioctl *io)
  77 {
  78         char *p;
  79
  80         if (io->generic.level != RAW_IOCTL_IOCTL) {
  81                 return NT_STATUS_NOT_IMPLEMENTED;
  82         }
  83
  84         if (io->ioctl.in.request == IOCTL_QUERY_JOB_INFO) {
  85
  86                 /* a request for the print job id of an open print job */
  87                 io->ioctl.out.blob = data_blob_talloc(req, NULL, 32);
  88
  89                 data_blob_clear(&io->ioctl.out.blob);
  90
  91                 p = (char *)io->ioctl.out.blob.data;
  92                 SSVAL(p,0, 1 /* REWRITE: fsp->rap_print_jobid */);
  93                 push_string(p+2, lpcfg_netbios_name(ntvfs->ctx->lp_ctx), 15, STR_TERMINATE|STR_ASCII);
  94                 push_string(p+18, ntvfs->ctx->config->name, 13, STR_TERMINATE|STR_ASCII);
  95                 return NT_STATUS_OK;
  96         }
  97
  98         return NT_STATUS_INVALID_PARAMETER;
  99 }
 100
 101
 102 /*
 103   initialialise the print backend, registering ourselves with the ntvfs subsystem
 104  */
 105 NTSTATUS ntvfs_print_init(void)
 106 {
 107         NTSTATUS ret;
 108         struct ntvfs_ops ops;
 109         NTVFS_CURRENT_CRITICAL_SIZES(vers);
 110
 111         ZERO_STRUCT(ops);
 112
 113         /* fill in the name and type */
 114         ops.name = "default";
 115         ops.type = NTVFS_PRINT;
 116
 117         /* fill in all the operations */
 118         ops.connect_fn = print_connect;
 119         ops.disconnect_fn = print_disconnect;
 120         ops.unlink_fn = print_unlink;
 121         ops.ioctl_fn = print_ioctl;
 122
 123         /* register ourselves with the NTVFS subsystem. We register under the name 'default'
 124            as we wish to be the default backend */
 125         ret = ntvfs_register(&ops, &vers);
 126
 127         if (!NT_STATUS_IS_OK(ret)) {
 128                 DEBUG(0,("Failed to register PRINT backend!\n"));
 129         }
 130
 131         return ret;
 132 }