r23792: convert Samba4 to GPLv3
[bbaumbach/samba-autobuild/.git] / source4 / ntvfs / posix / pvfs_write.c
index ccf3a775a82f28943192a93fe4f6f6dc75dedd19..5a11f01952bb19e4f91524b02315b82cf1c9837d 100644 (file)
@@ -7,7 +7,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
    
    This program is distributed in the hope that it will be useful,
    GNU General Public License for more details.
    
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "includes.h"
 #include "vfs_posix.h"
+#include "librpc/gen_ndr/security.h"
 
 
 /*
   write to a file
 */
 NTSTATUS pvfs_write(struct ntvfs_module_context *ntvfs,
-                   struct smbsrv_request *req, union smb_write *wr)
+                   struct ntvfs_request *req, union smb_write *wr)
 {
        struct pvfs_state *pvfs = ntvfs->private_data;
        ssize_t ret;
@@ -36,45 +36,61 @@ NTSTATUS pvfs_write(struct ntvfs_module_context *ntvfs,
        NTSTATUS status;
 
        if (wr->generic.level != RAW_WRITE_WRITEX) {
-               return ntvfs_map_write(req, wr, ntvfs);
+               return ntvfs_map_write(ntvfs, req, wr);
        }
 
-       f = pvfs_find_fd(pvfs, req, wr->writex.in.fnum);
+       f = pvfs_find_fd(pvfs, req, wr->writex.in.file.ntvfs);
        if (!f) {
                return NT_STATUS_INVALID_HANDLE;
        }
 
-       if (f->name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY) {
+       if (f->handle->fd == -1) {
                return NT_STATUS_FILE_IS_A_DIRECTORY;
        }
 
-       if (!(f->access_mask & SA_RIGHT_FILE_WRITE_APPEND)) {
-               return NT_STATUS_ACCESS_VIOLATION;
+       if (!(f->access_mask & (SEC_FILE_WRITE_DATA | SEC_FILE_APPEND_DATA))) {
+               return NT_STATUS_ACCESS_DENIED;
        }
 
        status = pvfs_check_lock(pvfs, f, req->smbpid, 
                                 wr->writex.in.offset,
                                 wr->writex.in.count,
                                 WRITE_LOCK);
-       if (!NT_STATUS_IS_OK(status)) {
-               return status;
-       }
+       NT_STATUS_NOT_OK_RETURN(status);
        
-       ret = pwrite(f->fd, 
-                    wr->writex.in.data, 
-                    wr->writex.in.count,
-                    wr->writex.in.offset);
+       if (f->handle->name->stream_name) {
+               ret = pvfs_stream_write(pvfs,
+                                       f->handle,
+                                       wr->writex.in.data, 
+                                       wr->writex.in.count,
+                                       wr->writex.in.offset);
+       } else {
+#if HAVE_LINUX_AIO
+               /* possibly try an aio write */
+               if ((req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC) &&
+                   (pvfs->flags & PVFS_FLAG_LINUX_AIO)) {
+                       status = pvfs_aio_pwrite(req, wr, f);
+                       if (NT_STATUS_IS_OK(status)) {
+                               return NT_STATUS_OK;
+                       }
+               }
+#endif
+               ret = pwrite(f->handle->fd, 
+                            wr->writex.in.data, 
+                            wr->writex.in.count,
+                            wr->writex.in.offset);
+       }
        if (ret == -1) {
                if (errno == EFBIG) {
                        return NT_STATUS_INVALID_PARAMETER;
                }
-               return map_nt_error_from_unix(errno);
+               return pvfs_map_errno(pvfs, errno);
        }
 
-       f->seek_offset = wr->writex.in.offset + ret;
+       f->handle->seek_offset = wr->writex.in.offset + ret;
        
        wr->writex.out.nwritten = ret;
        wr->writex.out.remaining = 0; /* should fill this in? */
-       
+
        return NT_STATUS_OK;
 }