r3253: - added rudimentary support for ntioctl in pvfs

- catch the SIGXFSZ signal, which for some completely insane reason is
  generated in current Linux systems when you write before the maximum
  offset in a file (maximum is 2^41 on my box). Why wasn't errno good
  enough for this?

- give the right ntstatus code for large offset write failures
(This used to be commit 367f0c2af409e4292f727e8a865762a008fd7e67)

1 files changed, 87 insertions, 0 deletions

diff --git a/source4/ntvfs/posix/pvfs_ioctl.c b/source4/ntvfs/posix/pvfs_ioctl.c
new file mode 100644
index 0000000000..15b9d6c27a
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_ioctl.c
@@ -0,0 +1,87 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - open and close
+
+   Copyright (C) Andrew Tridgell 2004
+
+   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
+   (at your option) any later version.
+   
+   This program 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 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.
+*/
+
+#include "include/includes.h"
+#include "vfs_posix.h"
+
+/*
+  old ioctl interface 
+*/
+static NTSTATUS pvfs_ioctl_old(struct ntvfs_module_context *ntvfs,
+			struct smbsrv_request *req, union smb_ioctl *io)
+{
+	struct pvfs_state *pvfs = ntvfs->private_data;
+	struct pvfs_file *f;
+
+	f = pvfs_find_fd(pvfs, req, io->ioctl.in.fnum);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	return NT_STATUS_NOT_SUPPORTED;
+}
+
+/*
+  nt ioctl interface 
+*/
+static NTSTATUS pvfs_ntioctl(struct ntvfs_module_context *ntvfs,
+			     struct smbsrv_request *req, union smb_ioctl *io)
+{
+	struct pvfs_state *pvfs = ntvfs->private_data;
+	struct pvfs_file *f;
+
+	f = pvfs_find_fd(pvfs, req, io->ntioctl.in.fnum);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	switch (io->ntioctl.in.function) {
+	case FSCTL_SET_SPARSE:
+		/* maybe some posix systems have a way of marking
+		   a file non-sparse? */
+		return NT_STATUS_OK;
+	}
+
+	return NT_STATUS_NOT_SUPPORTED;
+}
+
+/*
+  ioctl interface 
+*/
+NTSTATUS pvfs_ioctl(struct ntvfs_module_context *ntvfs,
+		    struct smbsrv_request *req, union smb_ioctl *io)
+{
+	NTSTATUS status;
+
+	switch (io->generic.level) {
+	case RAW_IOCTL_IOCTL:
+		status = pvfs_ioctl_old(ntvfs, req, io);
+		break;
+
+	case RAW_IOCTL_NTIOCTL:
+		status = pvfs_ntioctl(ntvfs, req, io);
+		break;
+	}
+
+	return status;
+}
+