Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1902 insertions, 0 deletions

diff --git a/source3/modules/vfs_media_harmony.c b/source3/modules/vfs_media_harmony.c
new file mode 100644
index 0000000..2ef9b89
--- /dev/null
+++ b/source3/modules/vfs_media_harmony.c
@@ -0,0 +1,1902 @@
+/*
+ * $Id: media_harmony.c,v 1.1 2007/11/06 10:07:22 stuart_hc Exp $
+ *
+ * Samba VFS module supporting multiple AVID clients sharing media.
+ *
+ * Copyright (C) 2005  Philip de Nier <philipn@users.sourceforge.net>
+ * Copyright (C) 2012  Andrew Klaassen <clawsoon@yahoo.com>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+
+/*
+ * Media Harmony is a Samba VFS module that allows multiple AVID
+ * clients to share media. Each client sees their own copy of the
+ * AVID msmMMOB.mdb and msmFMID.pmr files and Creating directories.
+ *
+ * Add this module to the vfs objects option in your Samba share
+ * configuration.
+ * eg.
+ *
+ *   [avid_win]
+ *	path = /video
+ *	vfs objects = media_harmony
+ *	...
+ *
+ * It is recommended that you separate out Samba shares for Mac
+ * and Windows clients, and add the following options to the shares
+ * for Windows clients  (NOTE: replace @ with *):
+ *
+ *	veto files = /.DS_Store/._@/.Trash@/.Spotlight@/.hidden/.hotfiles@/.vol/
+ *	delete veto files = yes
+ *
+ * This prevents hidden files from Mac clients interfering with Windows
+ * clients. If you find any more problem hidden files then add them to
+ * the list.
+ *
+ *
+ * Andrew Klaassen, 2012-03-14
+ * To prevent Avid clients from interrupting each other (via Avid's habit
+ * of launching a database refresh whenever it notices an mtime update
+ * on media directories, i.e. whenever one editor adds new material to a
+ * shared share), I've added code that causes stat information for anything
+ * directly under "Avid MediaFile/MXF" to be taken from
+ * dirname_clientaddr_clientuser if it exists.  These files ~aren't~
+ * hidden, unlike the client-suffixed database files.
+ *
+ * For example, stat information for
+ *	Avid MediaFiles/MXF/1
+ * will come from
+ *	Avid MediaFiles/MXF/1_192.168.1.10_dave
+ * for dave working on 192.168.1.10, but will come from
+ *	Avid MediaFile/MXF/1_192.168.1.11_susan
+ * for susan working on 192.168.1.11.  If those alternate
+ * directories don't exist, the user will get the actual directory's stat
+ * info.  When an editor wants to force a database refresh, they update
+ * the mtime on "their" file.  This will cause Avid
+ * on that client to see an updated mtime for "Avid MediaFiles/MXF/1",
+ * which will trigger an Avid database refresh just for that editor.
+ *
+ *
+ * Notes:
+ * - This module is designed to work with AVID editing applications that
+ * look in the Avid MediaFiles or OMFI MediaFiles directory for media.
+ * It is not designed to work as expected in all circumstances for
+ * general use. For example: it is possibly to open client specific
+ * files such as msmMMOB.mdb_192.168.1.10_userx even though is doesn't
+ * show up in a directory listing.
+ *
+ */
+
+
+#include "includes.h"
+#include "system/filesys.h"
+#include "smbd/smbd.h"
+#include "../smbd/globals.h"
+#include "auth.h"
+#include "../lib/tsocket/tsocket.h"
+
+#define MH_INFO_DEBUG 10
+#define MH_ERR_DEBUG 0
+
+static const char* MDB_FILENAME = "msmMMOB.mdb";
+static const size_t MDB_FILENAME_LEN = 11;
+static const char* PMR_FILENAME = "msmFMID.pmr";
+static const size_t PMR_FILENAME_LEN = 11;
+static const char* CREATING_DIRNAME = "Creating";
+static const size_t CREATING_DIRNAME_LEN = 8;
+static const char* AVID_MEDIAFILES_DIRNAME = "Avid MediaFiles";
+static const size_t AVID_MEDIAFILES_DIRNAME_LEN = 15;
+static const char* OMFI_MEDIAFILES_DIRNAME = "OMFI MediaFiles";
+static const size_t OMFI_MEDIAFILES_DIRNAME_LEN = 15;
+static const char* APPLE_DOUBLE_PREFIX = "._";
+static const size_t APPLE_DOUBLE_PREFIX_LEN = 2;
+static const char* AVID_MXF_DIRNAME = "Avid MediaFiles/MXF";
+static const size_t AVID_MXF_DIRNAME_LEN = 19;
+
+static int vfs_mh_debug_level = DBGC_VFS;
+
+/* supplements the directory list stream */
+typedef struct mh_dirinfo_struct
+{
+	DIR* dirstream;
+	char *dirpath;
+	char *clientPath;
+	bool isInMediaFiles;
+	char *clientMDBFilename;
+	char *clientPMRFilename;
+	char *clientCreatingDirname;
+} mh_dirinfo_struct;
+
+
+/* Add "_<ip address>_<user name>" suffix to path or filename.
+ *
+ * Success: return 0
+ * Failure: set errno, path NULL, return -1
+ */
+static int alloc_append_client_suffix(vfs_handle_struct *handle,
+		char **path)
+{
+	int status = 0;
+	char *raddr = NULL;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with *path '%s'\n", *path));
+
+	raddr = tsocket_address_inet_addr_string(
+			handle->conn->sconn->remote_address, talloc_tos());
+	if (raddr == NULL)
+	{
+		errno = ENOMEM;
+		status = -1;
+		goto err;
+	}
+
+	/* talloc_asprintf_append uses talloc_realloc, which
+	 * frees original 'path' memory so we don't have to.
+	 */
+	*path = talloc_asprintf_append(*path, "_%s_%s",
+		raddr,
+		handle->conn->session_info->unix_info->sanitized_username);
+	if (*path == NULL)
+	{
+		DEBUG(MH_ERR_DEBUG, ("alloc_append_client_suffix "
+					"out of memory\n"));
+		errno = ENOMEM;
+		status = -1;
+		goto err;
+	}
+	DEBUG(MH_INFO_DEBUG, ("Leaving with *path '%s'\n", *path));
+err:
+	TALLOC_FREE(raddr);
+	return status;
+}
+
+
+/* Returns True if the file or directory begins with the appledouble
+ * prefix.
+ */
+static bool is_apple_double(const char* fname)
+{
+	bool ret = False;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with fname '%s'\n", fname));
+
+	if (strncmp(APPLE_DOUBLE_PREFIX, fname, APPLE_DOUBLE_PREFIX_LEN)
+			== 0)
+	{
+		ret = True;
+	}
+	DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
+				ret == True ? "True" : "False"));
+	return ret;
+}
+
+static bool starts_with_media_dir(const char* media_dirname,
+		size_t media_dirname_len, const char* path)
+{
+	bool ret = False;
+	const char *path_start;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with media_dirname '%s' "
+			      "path '%s'\n", media_dirname, path));
+
+	/* Sometimes Samba gives us "./OMFI MediaFiles". */
+	if (strncmp(path, "./", 2) == 0)
+	{
+		path_start = &path[2];
+	}
+	else {
+		path_start = path;
+	}
+
+	if (strncmp(media_dirname, path_start, media_dirname_len) == 0
+			&&
+		(
+			path_start[media_dirname_len] == '\0'
+			||
+			path_start[media_dirname_len] == '/'
+		)
+	)
+	{
+		ret = True;
+	}
+
+	DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
+				ret == True ? "True" : "False"));
+	return ret;
+}
+
+/*
+ * Returns True if the file or directory referenced by the path is below
+ * the AVID_MEDIAFILES_DIRNAME or OMFI_MEDIAFILES_DIRNAME directory
+ * The AVID_MEDIAFILES_DIRNAME and OMFI_MEDIAFILES_DIRNAME are assumed to
+ * be in the root directory, which is generally a safe assumption
+ * in the fixed-path world of Avid.
+ */
+static bool is_in_media_files(const char* path)
+{
+	bool ret = False;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path));
+
+	if (
+		starts_with_media_dir(AVID_MEDIAFILES_DIRNAME,
+				AVID_MEDIAFILES_DIRNAME_LEN, path)
+		||
+		starts_with_media_dir(OMFI_MEDIAFILES_DIRNAME,
+				OMFI_MEDIAFILES_DIRNAME_LEN, path)
+	)
+	{
+		ret = True;
+	}
+	DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
+				ret == True ? "True" : "False"));
+	return ret;
+}
+
+/*
+ * Returns depth of path under media directory.  Deals with the
+ * occasional ..../. and ..../.. paths that get passed to stat.
+ *
+ * Assumes is_in_media_files has already been called and has returned
+ * true for the path; if it hasn't, this function will likely crash
+ * and burn.
+ *
+ * Not foolproof; something like "Avid MediaFiles/MXF/../foo/1"
+ * would fool it.  Haven't seen paths like that getting to the
+ * stat function yet, so ignoring that possibility for now.
+ */
+static int depth_from_media_dir(const char* media_dirname,
+		size_t media_dirname_len, const char* path)
+{
+	int transition_count = 0;
+	const char *path_start;
+	const char *pathPtr;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with media_dirname '%s' "
+			      "path '%s'\n", media_dirname, path));
+
+	/* Sometimes Samba gives us "./OMFI MediaFiles". */
+	if (strncmp(path, "./", 2) == 0)
+	{
+		path_start = &path[2];
+	}
+	else {
+		path_start = path;
+	}
+
+	if (path_start[media_dirname_len] == '\0')
+	{
+		goto out;
+	}
+
+	pathPtr = &path_start[media_dirname_len + 1];
+
+	while(1)
+	{
+		if (*pathPtr == '\0' || *pathPtr == '/')
+		{
+			if (
+				*(pathPtr - 1) == '.'
+					&&
+				*(pathPtr - 2) == '.'
+					&&
+				*(pathPtr - 3) == '/'
+			)
+			{
+				transition_count--;
+			}
+			else if (
+				!
+				(
+					*(pathPtr - 1) == '/'
+					||
+					(
+						*(pathPtr - 1) == '.'
+							&&
+						*(pathPtr - 2) == '/'
+					)
+				)
+			)
+			{
+				transition_count++;
+			}
+		}
+		if (*pathPtr == '\0')
+		{
+			break;
+		}
+		pathPtr++;
+	}
+
+	DEBUG(MH_INFO_DEBUG, ("Leaving with transition_count '%i'\n",
+				transition_count));
+out:
+	return transition_count;
+}
+
+/* Identifies MDB and PMR files at end of path. */
+static bool is_avid_database(
+		char *path,
+		size_t path_len,
+		const char *avid_db_filename,
+		const size_t avid_db_filename_len)
+{
+	bool ret = False;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with path '%s', "
+			      "avid_db_filename '%s', "
+			      "path_len '%i', "
+			      "avid_db_filename_len '%i'\n",
+			      path, avid_db_filename,
+			      (int)path_len, (int)avid_db_filename_len));
+
+	if (
+		path_len > avid_db_filename_len
+			&&
+		strcmp(&path[path_len - avid_db_filename_len],
+				avid_db_filename) == 0
+			&&
+		(
+			path[path_len - avid_db_filename_len - 1] == '/'
+			||
+			(path_len > avid_db_filename_len
+				+ APPLE_DOUBLE_PREFIX_LEN
+				&&
+			path[path_len - avid_db_filename_len
+				- APPLE_DOUBLE_PREFIX_LEN - 1] == '/'
+				&&
+			is_apple_double(&path[path_len
+				- avid_db_filename_len
+				- APPLE_DOUBLE_PREFIX_LEN]))
+		)
+	)
+	{
+		ret = True;
+	}
+	DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
+				ret == True ? "True" : "False"));
+	return ret;
+}
+
+
+/* Add client suffix to paths to MDB_FILENAME, PMR_FILENAME and
+ * CREATING_SUBDIRNAME.
+ *
+ * Caller must free newPath.
+ *
+ * Success: return 0
+ * Failure: set errno, newPath NULL, return -1
+ */
+static int alloc_get_client_path(vfs_handle_struct *handle,
+		TALLOC_CTX *ctx,
+		const char *path,
+		char **newPath)
+{
+	/* replace /CREATING_DIRNAME/ or /._CREATING_DIRNAME/
+	 * directory in path - potentially in middle of path
+	 * - with suffixed name.
+	 */
+	int status = 0;
+	char* pathPtr;
+	size_t intermPathLen;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path));
+
+	*newPath = talloc_strdup(ctx, path);
+	if (*newPath == NULL)
+	{
+		DEBUG(MH_ERR_DEBUG, ("alloc_get_client_path ENOMEM #1\n"));
+		errno = ENOMEM;
+		status = -1;
+		goto out;
+	}
+	DEBUG(MH_INFO_DEBUG, ("newPath #1 %s\n", *newPath));
+	if (
+		(pathPtr = strstr(path, CREATING_DIRNAME)) != NULL
+			&&
+		(
+			*(pathPtr + CREATING_DIRNAME_LEN) == '\0'
+			||
+			*(pathPtr + CREATING_DIRNAME_LEN) == '/'
+		)
+			&&
+		(
+			(pathPtr - path > 0
+				&&
+			 *(pathPtr - 1) == '/')
+			||
+			(pathPtr - path > APPLE_DOUBLE_PREFIX_LEN
+				&&
+			*(pathPtr - APPLE_DOUBLE_PREFIX_LEN - 1) == '/'
+				&&
+			 is_apple_double(pathPtr - APPLE_DOUBLE_PREFIX_LEN))
+		)
+	)
+	{
+		/* Insert client suffix into path. */
+		(*newPath)[pathPtr - path + CREATING_DIRNAME_LEN] = '\0';
+		DEBUG(MH_INFO_DEBUG, ("newPath #2 %s\n", *newPath));
+
+		if ((status = alloc_append_client_suffix(handle, newPath)))
+		{
+			goto out;
+		}
+
+		DEBUG(MH_INFO_DEBUG, ("newPath #3 %s\n", *newPath));
+		*newPath = talloc_strdup_append(*newPath,
+				pathPtr + CREATING_DIRNAME_LEN);
+		if (*newPath == NULL)
+		{
+			DEBUG(MH_ERR_DEBUG, ("alloc_get_client_path "
+						"ENOMEM #2\n"));
+			errno = ENOMEM;
+			status = -1;
+			goto out;
+		}
+		DEBUG(MH_INFO_DEBUG, ("newPath #4 %s\n", *newPath));
+	}
+
+	/* replace /MDB_FILENAME or /PMR_FILENAME or /._MDB_FILENAME
+	 * or /._PMR_FILENAME at newPath end with suffixed name.
+	 */
+	intermPathLen = strlen(*newPath);
+	if (
+		is_avid_database(*newPath, intermPathLen,
+			MDB_FILENAME, MDB_FILENAME_LEN)
+		||
+		is_avid_database(*newPath, intermPathLen,
+			PMR_FILENAME, PMR_FILENAME_LEN)
+	)
+	{
+		DEBUG(MH_INFO_DEBUG, ("newPath #5 %s\n", *newPath));
+		if ((status = alloc_append_client_suffix(handle, newPath)))
+		{
+			goto out;
+		}
+		DEBUG(MH_INFO_DEBUG, ("newPath #6 %s\n", *newPath));
+	}
+out:
+	/* newPath must be freed in caller. */
+	DEBUG(MH_INFO_DEBUG, ("Leaving with *newPath '%s'\n", *newPath));
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int alloc_get_client_smb_fname(struct vfs_handle_struct *handle,
+		TALLOC_CTX *ctx,
+		const struct smb_filename *smb_fname,
+		struct smb_filename **clientFname)
+{
+	int status = 0;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
+			      smb_fname->base_name));
+
+	*clientFname = cp_smb_filename(ctx, smb_fname);
+	if ((*clientFname) == NULL) {
+		DEBUG(MH_ERR_DEBUG, ("alloc_get_client_smb_fname "
+					"NTERR\n"));
+		errno = ENOMEM;
+		status = -1;
+		goto err;
+	}
+	if ((status = alloc_get_client_path(handle, ctx,
+				smb_fname->base_name,
+				&(*clientFname)->base_name)))
+	{
+		goto err;
+	}
+	DEBUG(MH_INFO_DEBUG, ("Leaving with (*clientFname)->base_name "
+				"'%s'\n", (*clientFname)->base_name));
+err:
+	return status;
+}
+
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int alloc_set_client_dirinfo_path(struct vfs_handle_struct *handle,
+		TALLOC_CTX *ctx,
+		char **path,
+		const char *avid_db_filename)
+{
+	int status = 0;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with avid_db_filename '%s'\n",
+			      avid_db_filename));
+
+	if ((*path = talloc_strdup(ctx, avid_db_filename)) == NULL)
+	{
+		DEBUG(MH_ERR_DEBUG, ("alloc_set_client_dirinfo_path "
+					"ENOMEM\n"));
+		errno = ENOMEM;
+		status = -1;
+		goto err;
+	}
+	if ((status = alloc_append_client_suffix(handle, path)))
+	{
+		goto err;
+	}
+	DEBUG(MH_INFO_DEBUG, ("Leaving with *path '%s'\n", *path));
+err:
+	return status;
+}
+
+/*
+ * Replace mtime on clientFname with mtime from client-suffixed
+ * equivalent, if it exists.
+ *
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int set_fake_mtime(vfs_handle_struct *handle,
+		TALLOC_CTX *ctx,
+		struct smb_filename **clientFname,
+		int (*statFn)(const char *, SMB_STRUCT_STAT *, bool))
+{
+	int status = 0;
+	char *statPath;
+	SMB_STRUCT_STAT fakeStat;
+	int copy_len;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with (*clientFname)->base_name "
+			      "'%s', (*clientFname)->st.st_ex_mtime %s",
+			      (*clientFname)->base_name,
+			      ctime(&((*clientFname)->st.st_ex_mtime.tv_sec))));
+
+	if (
+		depth_from_media_dir(AVID_MXF_DIRNAME,
+				AVID_MXF_DIRNAME_LEN,
+				(*clientFname)->base_name)
+			!= 1
+			&&
+		depth_from_media_dir(OMFI_MEDIAFILES_DIRNAME,
+				OMFI_MEDIAFILES_DIRNAME_LEN,
+				(*clientFname)->base_name)
+			!= 0
+	)
+	{
+		goto out;
+	}
+
+	copy_len = strlen((*clientFname)->base_name);
+
+	/* Hack to deal with occasional "Avid MediaFiles/MXF/1/." paths.
+	 * We know we're under a media dir, so paths are at least 2 chars
+	 * long.
+	 */
+	if ((*clientFname)->base_name[copy_len - 1] == '.' &&
+			(*clientFname)->base_name[copy_len - 2] == '/')
+	{
+		copy_len -= 2;
+	}
+
+	if (((statPath = talloc_strndup(ctx,
+			(*clientFname)->base_name, copy_len)) == NULL))
+	{
+		errno = ENOMEM;
+		status = -1;
+		goto err;
+	}
+	if ((status = alloc_append_client_suffix(handle, &statPath)))
+	{
+		goto err;
+	}
+
+	DEBUG(MH_INFO_DEBUG, ("Fake stat'ing '%s'\n", statPath));
+	if (statFn(statPath, &fakeStat,
+			lp_fake_directory_create_times(SNUM(handle->conn))))
+	{
+		/* This can fail for legitimate reasons - i.e. the
+		 * fakeStat directory doesn't exist, which is okay
+		 * - so we don't set status.  But if it does fail,
+		 * we need to skip over the mtime assignment.
+		 */
+		goto err;
+	}
+
+	DEBUG(MH_INFO_DEBUG, ("Setting fake mtime from '%s'\n", statPath));
+	(*clientFname)->st.st_ex_mtime = fakeStat.st_ex_mtime;
+err:
+	TALLOC_FREE(statPath);
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving with (*clientFname)->base_name "
+			"'%s', (*clientFname)->st.st_ex_mtime %s",
+			(*clientFname)->base_name,
+			ctime(&((*clientFname)->st.st_ex_mtime.tv_sec))));
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_statvfs(struct vfs_handle_struct *handle,
+		const struct smb_filename *smb_fname,
+		struct vfs_statvfs_struct *statbuf)
+{
+	int status;
+	struct smb_filename *clientFname = NULL;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n",
+			smb_fname->base_name));
+
+	if (!is_in_media_files(smb_fname->base_name))
+	{
+		status = SMB_VFS_NEXT_STATVFS(handle, smb_fname, statbuf);
+		goto out;
+	}
+
+	status = alloc_get_client_smb_fname(handle,
+				talloc_tos(),
+				smb_fname,
+				&clientFname);
+	if (status != 0) {
+		goto err;
+	}
+
+	status = SMB_VFS_NEXT_STATVFS(handle, clientFname, statbuf);
+err:
+	TALLOC_FREE(clientFname);
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving with path '%s'\n",
+			smb_fname->base_name));
+	return status;
+}
+
+static int alloc_set_client_dirinfo(vfs_handle_struct *handle,
+		const char *fname,
+		struct mh_dirinfo_struct **dirInfo)
+{
+	int status = 0;
+	char *clientPath;
+	TALLOC_CTX *ctx;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with fname '%s'\n", fname));
+
+	*dirInfo = talloc(NULL, struct mh_dirinfo_struct);
+	if (*dirInfo == NULL)
+	{
+		goto err;
+	}
+
+	(*dirInfo)->dirpath = talloc_strdup(*dirInfo, fname);
+	if ((*dirInfo)->dirpath == NULL)
+	{
+		goto err;
+	}
+
+	if (!is_in_media_files(fname))
+	{
+		(*dirInfo)->clientPath = NULL;
+		(*dirInfo)->clientMDBFilename = NULL;
+		(*dirInfo)->clientPMRFilename = NULL;
+		(*dirInfo)->clientCreatingDirname = NULL;
+		(*dirInfo)->isInMediaFiles = False;
+		goto out;
+	}
+
+	(*dirInfo)->isInMediaFiles = True;
+
+	if (alloc_set_client_dirinfo_path(handle,
+				*dirInfo,
+				&((*dirInfo)->clientMDBFilename),
+				MDB_FILENAME))
+	{
+		goto err;
+	}
+
+	if (alloc_set_client_dirinfo_path(handle,
+				*dirInfo,
+				&((*dirInfo)->clientPMRFilename),
+				PMR_FILENAME))
+	{
+		goto err;
+	}
+
+	if (alloc_set_client_dirinfo_path(handle,
+				*dirInfo,
+				&((*dirInfo)->clientCreatingDirname),
+				CREATING_DIRNAME))
+	{
+		goto err;
+	}
+
+	clientPath = NULL;
+	ctx = talloc_tos();
+
+	if (alloc_get_client_path(handle, ctx,
+				fname,
+				&clientPath))
+	{
+		goto err;
+	}
+
+	(*dirInfo)->clientPath = talloc_strdup(*dirInfo, clientPath);
+	if ((*dirInfo)->clientPath == NULL)
+	{
+		goto err;
+	}
+
+	TALLOC_FREE(clientPath);
+
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving with (*dirInfo)->dirpath '%s', "
+				"(*dirInfo)->clientPath '%s'\n",
+				(*dirInfo)->dirpath,
+				(*dirInfo)->clientPath));
+	return status;
+
+err:
+	DEBUG(MH_ERR_DEBUG, ("Failing with fname '%s'\n", fname));
+	TALLOC_FREE(*dirInfo);
+	status = -1;
+	errno = ENOMEM;
+	return status;
+}
+
+static DIR *mh_fdopendir(vfs_handle_struct *handle,
+		files_struct *fsp,
+		const char *mask,
+		uint32_t attr)
+{
+	struct mh_dirinfo_struct *dirInfo = NULL;
+	DIR *dirstream;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with fsp->fsp_name->base_name '%s'\n",
+			      fsp->fsp_name->base_name));
+
+	dirstream = SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
+	if (!dirstream)
+	{
+		goto err;
+	}
+
+	if (alloc_set_client_dirinfo(handle, fsp->fsp_name->base_name,
+					&dirInfo))
+	{
+		goto err;
+	}
+
+	dirInfo->dirstream = dirstream;
+
+	if (! dirInfo->isInMediaFiles) {
+		goto out;
+	}
+
+	if (set_fake_mtime(handle, fsp, &(fsp->fsp_name), sys_stat))
+	{
+		goto err;
+	}
+
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving with dirInfo->dirpath '%s', "
+			"dirInfo->clientPath '%s', "
+			"fsp->fsp_name->st.st_ex_mtime %s",
+			dirInfo->dirpath,
+			dirInfo->clientPath,
+			ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
+	/* Success is freed in closedir. */
+	return (DIR *) dirInfo;
+err:
+	/* Failure is freed here. */
+	DEBUG(MH_ERR_DEBUG, ("Failing with fsp->fsp_name->base_name '%s'\n",
+			fsp->fsp_name->base_name));
+	TALLOC_FREE(dirInfo);
+	return NULL;
+}
+
+/*
+ * skip MDB_FILENAME and PMR_FILENAME filenames and CREATING_DIRNAME
+ * directory, skip other client's suffixed MDB_FILENAME and PMR_FILENAME
+ * filenames and CREATING_DIRNAME directory, replace this client's
+ * suffixed MDB_FILENAME and PMR_FILENAME filenames and CREATING_DIRNAME
+ * directory with non suffixed.
+ *
+ * Success: return dirent
+ * End of data: return NULL
+ * Failure: set errno, return NULL
+ */
+static struct dirent *mh_readdir(vfs_handle_struct *handle,
+				 struct files_struct *dirfsp,
+				 DIR *dirp,
+				 SMB_STRUCT_STAT *sbuf)
+{
+	mh_dirinfo_struct* dirInfo = (mh_dirinfo_struct*)dirp;
+	struct dirent *d = NULL;
+	int skip;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering mh_readdir\n"));
+
+	DEBUG(MH_INFO_DEBUG, ("dirInfo->dirpath '%s', "
+			      "dirInfo->clientPath '%s', "
+			      "dirInfo->isInMediaFiles '%s', "
+			      "dirInfo->clientMDBFilename '%s', "
+			      "dirInfo->clientPMRFilename '%s', "
+			      "dirInfo->clientCreatingDirname '%s'\n",
+			      dirInfo->dirpath,
+			      dirInfo->clientPath,
+			      dirInfo->isInMediaFiles ? "True" : "False",
+			      dirInfo->clientMDBFilename,
+			      dirInfo->clientPMRFilename,
+			      dirInfo->clientCreatingDirname));
+
+	if (! dirInfo->isInMediaFiles)
+	{
+		d = SMB_VFS_NEXT_READDIR(handle, dirfsp, dirInfo->dirstream, sbuf);
+		goto out;
+	}
+
+	do
+	{
+		const char* dname;
+		bool isAppleDouble;
+
+		skip = False;
+		d = SMB_VFS_NEXT_READDIR(handle, dirfsp, dirInfo->dirstream, sbuf);
+
+		if (d == NULL)
+		{
+			break;
+		}
+
+		/* ignore apple double prefix for logic below */
+		if (is_apple_double(d->d_name))
+		{
+			dname = &d->d_name[APPLE_DOUBLE_PREFIX_LEN];
+			isAppleDouble = True;
+		}
+		else
+		{
+			dname = d->d_name;
+			isAppleDouble = False;
+		}
+
+		/* skip Avid-special files with no client suffix */
+		if (
+			strcmp(dname, MDB_FILENAME) == 0
+			||
+			strcmp(dname, PMR_FILENAME) == 0
+			||
+			strcmp(dname, CREATING_DIRNAME) == 0
+		)
+		{
+			skip = True;
+		}
+		/* chop client suffix off this client's suffixed files */
+		else if (strcmp(dname, dirInfo->clientMDBFilename) == 0)
+		{
+			if (isAppleDouble)
+			{
+				d->d_name[MDB_FILENAME_LEN
+					+ APPLE_DOUBLE_PREFIX_LEN] = '\0';
+			}
+			else
+			{
+				d->d_name[MDB_FILENAME_LEN] = '\0';
+			}
+		}
+		else if (strcmp(dname, dirInfo->clientPMRFilename) == 0)
+		{
+			if (isAppleDouble)
+			{
+				d->d_name[PMR_FILENAME_LEN
+					+ APPLE_DOUBLE_PREFIX_LEN] = '\0';
+			}
+			else
+			{
+				d->d_name[PMR_FILENAME_LEN] = '\0';
+			}
+		}
+		else if (strcmp(dname, dirInfo->clientCreatingDirname)
+				== 0)
+		{
+			if (isAppleDouble)
+			{
+				d->d_name[CREATING_DIRNAME_LEN
+					+ APPLE_DOUBLE_PREFIX_LEN] = '\0';
+			}
+			else
+			{
+				d->d_name[CREATING_DIRNAME_LEN] = '\0';
+			}
+		}
+		/*
+		 * Anything that starts as an Avid-special file
+		 * that's made it this far should be skipped.  This
+		 * is different from the original behaviour, which
+		 * only skipped other client's suffixed files.
+		 */
+		else if (
+			strncmp(MDB_FILENAME, dname,
+				MDB_FILENAME_LEN) == 0
+			||
+			strncmp(PMR_FILENAME, dname,
+				PMR_FILENAME_LEN) == 0
+			||
+			strncmp(CREATING_DIRNAME, dname,
+				CREATING_DIRNAME_LEN) == 0
+		)
+		{
+			skip = True;
+		}
+	}
+	while (skip);
+
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving mh_readdir\n"));
+	return d;
+}
+
+/*
+ * Success: no success result defined.
+ * Failure: no failure result defined.
+ */
+static void mh_seekdir(vfs_handle_struct *handle,
+		DIR *dirp,
+		long offset)
+{
+	DEBUG(MH_INFO_DEBUG, ("Entering and leaving mh_seekdir\n"));
+	SMB_VFS_NEXT_SEEKDIR(handle,
+			((mh_dirinfo_struct*)dirp)->dirstream, offset);
+}
+
+/*
+ * Success: return long
+ * Failure: no failure result defined.
+ */
+static long mh_telldir(vfs_handle_struct *handle,
+		DIR *dirp)
+{
+	DEBUG(MH_INFO_DEBUG, ("Entering and leaving mh_telldir\n"));
+	return SMB_VFS_NEXT_TELLDIR(handle,
+			((mh_dirinfo_struct*)dirp)->dirstream);
+}
+
+/*
+ * Success: no success result defined.
+ * Failure: no failure result defined.
+ */
+static void mh_rewinddir(vfs_handle_struct *handle,
+		DIR *dirp)
+{
+	DEBUG(MH_INFO_DEBUG, ("Entering and leaving mh_rewinddir\n"));
+	SMB_VFS_NEXT_REWINDDIR(handle,
+			((mh_dirinfo_struct*)dirp)->dirstream);
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_mkdirat(vfs_handle_struct *handle,
+		struct files_struct *dirfsp,
+		const struct smb_filename *smb_fname,
+		mode_t mode)
+{
+	int status;
+	struct smb_filename *clientFname = NULL;
+	const char *path = smb_fname->base_name;
+	struct smb_filename *full_fname = NULL;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path));
+
+	if (!is_in_media_files(path)) {
+		status = SMB_VFS_NEXT_MKDIRAT(handle,
+				dirfsp,
+				smb_fname,
+				mode);
+		goto out;
+	}
+
+	full_fname = full_path_from_dirfsp_atname(talloc_tos(),
+						  dirfsp,
+						  smb_fname);
+	if (full_fname == NULL) {
+		return -1;
+	}
+
+	status = alloc_get_client_smb_fname(handle,
+				talloc_tos(),
+				full_fname,
+				&clientFname);
+	if (status != 0) {
+		goto err;
+	}
+
+	status = SMB_VFS_NEXT_MKDIRAT(handle,
+			handle->conn->cwd_fsp,
+			clientFname,
+			mode);
+err:
+	TALLOC_FREE(full_fname);
+	TALLOC_FREE(clientFname);
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving with path '%s'\n", path));
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_closedir(vfs_handle_struct *handle,
+		DIR *dirp)
+{
+	DIR *realdirp = ((mh_dirinfo_struct*)dirp)->dirstream;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering mh_closedir\n"));
+	// Will this talloc_free destroy realdirp?
+	TALLOC_FREE(dirp);
+
+	DEBUG(MH_INFO_DEBUG, ("Leaving mh_closedir\n"));
+	return SMB_VFS_NEXT_CLOSEDIR(handle, realdirp);
+}
+
+/*
+ * Success: return non-negative file descriptor
+ * Failure: set errno, return -1
+ */
+static int mh_openat(struct vfs_handle_struct *handle,
+		     const struct files_struct *dirfsp,
+		     const struct smb_filename *smb_fname,
+		     files_struct *fsp,
+		     const struct vfs_open_how *how)
+{
+	int ret;
+	struct smb_filename *clientFname;
+	TALLOC_CTX *ctx;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
+			      smb_fname->base_name));
+
+	if (!is_in_media_files(smb_fname->base_name)) {
+		ret = SMB_VFS_NEXT_OPENAT(handle,
+					  dirfsp,
+					  smb_fname,
+					  fsp,
+					  how);
+		goto out;
+	}
+
+	clientFname = NULL;
+	ctx = talloc_tos();
+
+	if (alloc_get_client_smb_fname(handle, ctx, smb_fname, &clientFname)) {
+		ret = -1;
+		goto err;
+	}
+
+	/*
+	 * What about fsp->fsp_name? We also have to get correct stat info into
+	 * fsp and smb_fname for DB files, don't we?
+	 */
+
+	DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s' "
+			      "smb_fname->st.st_ex_mtime %s"
+			      " fsp->fsp_name->st.st_ex_mtime %s",
+			      smb_fname->base_name,
+			      ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
+			      ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
+
+	ret = SMB_VFS_NEXT_OPENAT(handle, dirfsp, clientFname, fsp, how);
+err:
+	TALLOC_FREE(clientFname);
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s'\n",
+				smb_fname->base_name));
+	return ret;
+}
+
+/*
+ * Success: return non-negative file descriptor
+ * Failure: set errno, return -1
+ */
+static NTSTATUS mh_create_file(vfs_handle_struct *handle,
+		struct smb_request *req,
+		struct files_struct *dirfsp,
+		struct smb_filename *smb_fname,
+		uint32_t access_mask,
+		uint32_t share_access,
+		uint32_t create_disposition,
+		uint32_t create_options,
+		uint32_t file_attributes,
+		uint32_t oplock_request,
+		const struct smb2_lease *lease,
+		uint64_t allocation_size,
+		uint32_t private_flags,
+		struct security_descriptor *sd,
+		struct ea_list *ea_list,
+		files_struct **result_fsp,
+		int *pinfo,
+		const struct smb2_create_blobs *in_context_blobs,
+		struct smb2_create_blobs *out_context_blobs)
+{
+	NTSTATUS status;
+	struct smb_filename *clientFname;
+	TALLOC_CTX *ctx;
+
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
+				smb_fname->base_name));
+	if (!is_in_media_files(smb_fname->base_name))
+	{
+		status = SMB_VFS_NEXT_CREATE_FILE(
+			handle,
+			req,
+			dirfsp,
+			smb_fname,
+			access_mask,
+			share_access,
+			create_disposition,
+			create_options,
+			file_attributes,
+			oplock_request,
+			lease,
+			allocation_size,
+			private_flags,
+			sd,
+			ea_list,
+			result_fsp,
+			pinfo,
+			in_context_blobs,
+			out_context_blobs);
+		goto out;
+	}
+
+	clientFname = NULL;
+	ctx = talloc_tos();
+
+	if (alloc_get_client_smb_fname(handle, ctx,
+				smb_fname,
+				&clientFname))
+	{
+		status = map_nt_error_from_unix(errno);
+		goto err;
+	}
+
+	/* This only creates files, so we don't have to worry about
+	 * our fake directory stat'ing here.
+	 */
+	// But we still need to route stat calls for DB files
+	// properly, right?
+	status = SMB_VFS_NEXT_CREATE_FILE(
+		handle,
+		req,
+		dirfsp,
+		clientFname,
+		access_mask,
+		share_access,
+		create_disposition,
+		create_options,
+		file_attributes,
+		oplock_request,
+		lease,
+		allocation_size,
+		private_flags,
+		sd,
+		ea_list,
+		result_fsp,
+		pinfo,
+		in_context_blobs,
+		out_context_blobs);
+err:
+	TALLOC_FREE(clientFname);
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s'"
+		"smb_fname->st.st_ex_mtime %s"
+		"		fsp->fsp_name->st.st_ex_mtime %s",
+		smb_fname->base_name,
+		ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
+		(*result_fsp) && VALID_STAT((*result_fsp)->fsp_name->st) ?
+		ctime(&((*result_fsp)->fsp_name->st.st_ex_mtime.tv_sec)) :
+		"No fsp time\n"));
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_renameat(vfs_handle_struct *handle,
+		files_struct *srcfsp,
+		const struct smb_filename *smb_fname_src,
+		files_struct *dstfsp,
+		const struct smb_filename *smb_fname_dst)
+{
+	int status = -1;
+	struct smb_filename *full_fname_src = NULL;
+	struct smb_filename *full_fname_dst = NULL;
+	struct smb_filename *srcClientFname = NULL;
+	struct smb_filename *dstClientFname = NULL;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with "
+			      "smb_fname_src->base_name '%s', "
+			      "smb_fname_dst->base_name '%s'\n",
+			      smb_fname_src->base_name,
+			      smb_fname_dst->base_name));
+
+	if (!is_in_media_files(smb_fname_src->base_name)
+				&&
+			!is_in_media_files(smb_fname_dst->base_name))
+	{
+		status = SMB_VFS_NEXT_RENAMEAT(handle,
+				srcfsp,
+				smb_fname_src,
+				dstfsp,
+				smb_fname_dst);
+		goto out;
+	}
+
+	full_fname_src = full_path_from_dirfsp_atname(talloc_tos(),
+						      srcfsp,
+						      smb_fname_src);
+	if (full_fname_src == NULL) {
+		errno = ENOMEM;
+		goto out;
+        }
+	full_fname_dst = full_path_from_dirfsp_atname(talloc_tos(),
+						      dstfsp,
+						      smb_fname_dst);
+	if (full_fname_dst == NULL) {
+		errno = ENOMEM;
+		goto out;
+        }
+
+	if ((status = alloc_get_client_smb_fname(handle,
+				talloc_tos(),
+				full_fname_src,
+				&srcClientFname)))
+	{
+		goto err;
+	}
+
+	if ((status = alloc_get_client_smb_fname(handle,
+				talloc_tos(),
+				full_fname_dst,
+				&dstClientFname)))
+	{
+		goto err;
+	}
+
+	status = SMB_VFS_NEXT_RENAMEAT(handle,
+				srcfsp->conn->cwd_fsp,
+				srcClientFname,
+				dstfsp->conn->cwd_fsp,
+				dstClientFname);
+err:
+	TALLOC_FREE(full_fname_src);
+	TALLOC_FREE(full_fname_dst);
+	TALLOC_FREE(dstClientFname);
+	TALLOC_FREE(srcClientFname);
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname_src->base_name '%s',"
+				" smb_fname_dst->base_name '%s'\n",
+				smb_fname_src->base_name,
+				smb_fname_dst->base_name));
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_stat(vfs_handle_struct *handle,
+		struct smb_filename *smb_fname)
+{
+	int status = 0;
+	struct smb_filename *clientFname;
+	TALLOC_CTX *ctx;
+
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
+			      smb_fname->base_name));
+
+	if (!is_in_media_files(smb_fname->base_name))
+	{
+		status = SMB_VFS_NEXT_STAT(handle, smb_fname);
+		goto out;
+	}
+
+	clientFname = NULL;
+	ctx = talloc_tos();
+
+	if ((status = alloc_get_client_smb_fname(handle, ctx,
+				smb_fname,
+				&clientFname)))
+	{
+		goto err;
+	}
+	DEBUG(MH_INFO_DEBUG, ("Stat'ing clientFname->base_name '%s'\n",
+				clientFname->base_name));
+	if ((status = SMB_VFS_NEXT_STAT(handle, clientFname)))
+	{
+		goto err;
+	}
+	if ((status = set_fake_mtime(handle, ctx, &clientFname, sys_stat)))
+	{
+		goto err;
+	}
+
+	/* Unlike functions with const smb_filename, we have to
+	 * modify smb_fname itself to pass our info back up.
+	 */
+	DEBUG(MH_INFO_DEBUG, ("Setting smb_fname '%s' stat "
+				"from clientFname '%s'\n",
+				smb_fname->base_name,
+				clientFname->base_name));
+	smb_fname->st = clientFname->st;
+err:
+	TALLOC_FREE(clientFname);
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->st.st_ex_mtime %s",
+			ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_lstat(vfs_handle_struct *handle,
+		struct smb_filename *smb_fname)
+{
+	int status = 0;
+	struct smb_filename *clientFname;
+	TALLOC_CTX *ctx;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
+			      smb_fname->base_name));
+
+	if (!is_in_media_files(smb_fname->base_name))
+	{
+		status = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
+		goto out;
+	}
+
+	clientFname = NULL;
+	ctx = talloc_tos();
+
+	if ((status = alloc_get_client_smb_fname(handle, ctx,
+				smb_fname,
+				&clientFname)))
+	{
+		goto err;
+	}
+	if ((status = SMB_VFS_NEXT_LSTAT(handle, clientFname)))
+	{
+		goto err;
+	}
+
+	if ((status = set_fake_mtime(handle, ctx, &clientFname, sys_lstat)))
+	{
+		goto err;
+	}
+	/* Unlike functions with const smb_filename, we have to
+	 * modify smb_fname itself to pass our info back up.
+	 */
+	smb_fname->st = clientFname->st;
+err:
+	TALLOC_FREE(clientFname);
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->st.st_ex_mtime %s",
+			ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_fstat(vfs_handle_struct *handle,
+		files_struct *fsp, SMB_STRUCT_STAT *sbuf)
+{
+	int status = 0;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering with fsp->fsp_name->base_name "
+				"'%s'\n", fsp_str_dbg(fsp)));
+
+	if ((status = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf)))
+	{
+		goto out;
+	}
+
+	if (fsp->fsp_name == NULL
+			|| !is_in_media_files(fsp->fsp_name->base_name))
+	{
+		goto out;
+	}
+
+	if ((status = mh_stat(handle, fsp->fsp_name)))
+	{
+		goto out;
+	}
+
+	*sbuf = fsp->fsp_name->st;
+out:
+	DEBUG(MH_INFO_DEBUG, ("Leaving with fsp->fsp_name->st.st_ex_mtime "
+			"%s",
+			fsp->fsp_name != NULL ?
+				ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec)) :
+				"0"));
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_unlinkat(vfs_handle_struct *handle,
+		struct files_struct *dirfsp,
+		const struct smb_filename *smb_fname,
+		int flags)
+{
+	int status;
+	struct smb_filename *full_fname = NULL;
+	struct smb_filename *clientFname;
+	TALLOC_CTX *ctx;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering mh_unlinkat\n"));
+	if (!is_in_media_files(smb_fname->base_name)) {
+		status = SMB_VFS_NEXT_UNLINKAT(handle,
+				dirfsp,
+				smb_fname,
+				flags);
+		goto out;
+	}
+
+	clientFname = NULL;
+	ctx = talloc_tos();
+
+	full_fname = full_path_from_dirfsp_atname(talloc_tos(),
+						  dirfsp,
+						  smb_fname);
+	if (full_fname == NULL) {
+		return -1;
+	}
+
+	if ((status = alloc_get_client_smb_fname(handle, ctx,
+				full_fname,
+				&clientFname))) {
+		goto err;
+	}
+
+	status = SMB_VFS_NEXT_UNLINKAT(handle,
+				dirfsp->conn->cwd_fsp,
+				clientFname,
+				flags);
+err:
+	TALLOC_FREE(full_fname);
+	TALLOC_FREE(clientFname);
+out:
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_lchown(vfs_handle_struct *handle,
+		const struct smb_filename *smb_fname,
+		uid_t uid,
+		gid_t gid)
+{
+	int status;
+	struct smb_filename *clientFname = NULL;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering mh_lchown\n"));
+	if (!is_in_media_files(smb_fname->base_name))
+	{
+		status = SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
+		goto out;
+	}
+
+	status = alloc_get_client_smb_fname(handle,
+				talloc_tos(),
+				smb_fname,
+				&clientFname);
+	if (status != 0) {
+		goto err;
+	}
+
+	status = SMB_VFS_NEXT_LCHOWN(handle, clientFname, uid, gid);
+err:
+	TALLOC_FREE(clientFname);
+out:
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_chdir(vfs_handle_struct *handle,
+		const struct smb_filename *smb_fname)
+{
+	int status;
+	struct smb_filename *clientFname = NULL;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering mh_chdir\n"));
+	if (!is_in_media_files(smb_fname->base_name)) {
+		status = SMB_VFS_NEXT_CHDIR(handle, smb_fname);
+		goto out;
+	}
+
+	status = alloc_get_client_smb_fname(handle,
+				talloc_tos(),
+				smb_fname,
+				&clientFname);
+	if (status != 0) {
+		goto err;
+	}
+
+	status = SMB_VFS_NEXT_CHDIR(handle, clientFname);
+err:
+	TALLOC_FREE(clientFname);
+out:
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+
+static int mh_symlinkat(vfs_handle_struct *handle,
+		const struct smb_filename *link_contents,
+		struct files_struct *dirfsp,
+		const struct smb_filename *new_smb_fname)
+{
+	int status = -1;
+	struct smb_filename *full_fname = NULL;
+	struct smb_filename *new_link_target = NULL;
+	struct smb_filename *newclientFname = NULL;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering mh_symlinkat\n"));
+
+	full_fname = full_path_from_dirfsp_atname(talloc_tos(),
+						dirfsp,
+						new_smb_fname);
+	if (full_fname == NULL) {
+		status = -1;
+		goto err;
+	}
+
+	if (!is_in_media_files(link_contents->base_name) &&
+			!is_in_media_files(full_fname->base_name)) {
+		status = SMB_VFS_NEXT_SYMLINKAT(handle,
+				link_contents,
+				dirfsp,
+				new_smb_fname);
+		goto out;
+	}
+
+	if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
+				link_contents,
+				&new_link_target))) {
+		goto err;
+	}
+	if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
+				full_fname,
+				&newclientFname))) {
+		goto err;
+	}
+
+	status = SMB_VFS_NEXT_SYMLINKAT(handle,
+				new_link_target,
+				handle->conn->cwd_fsp,
+				newclientFname);
+err:
+	TALLOC_FREE(new_link_target);
+	TALLOC_FREE(newclientFname);
+out:
+	TALLOC_FREE(full_fname);
+	return status;
+}
+
+/*
+ * Success: return byte count
+ * Failure: set errno, return -1
+ */
+static int mh_readlinkat(vfs_handle_struct *handle,
+		const struct files_struct *dirfsp,
+		const struct smb_filename *smb_fname,
+		char *buf,
+		size_t bufsiz)
+{
+	int status;
+	struct smb_filename *full_fname = NULL;
+	struct smb_filename *clientFname = NULL;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering mh_readlinkat\n"));
+	full_fname = full_path_from_dirfsp_atname(talloc_tos(),
+						dirfsp,
+						smb_fname);
+	if (full_fname == NULL) {
+		status = -1;
+		goto err;
+	}
+
+	if (!is_in_media_files(full_fname->base_name)) {
+		status = SMB_VFS_NEXT_READLINKAT(handle,
+				dirfsp,
+				smb_fname,
+				buf,
+				bufsiz);
+		goto out;
+	}
+
+	if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
+				full_fname,
+				&clientFname))) {
+		goto err;
+	}
+
+	status = SMB_VFS_NEXT_READLINKAT(handle,
+				handle->conn->cwd_fsp,
+				clientFname,
+				buf,
+				bufsiz);
+
+err:
+	TALLOC_FREE(clientFname);
+out:
+	TALLOC_FREE(full_fname);
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_linkat(vfs_handle_struct *handle,
+		files_struct *srcfsp,
+		const struct smb_filename *old_smb_fname,
+		files_struct *dstfsp,
+		const struct smb_filename *new_smb_fname,
+		int flags)
+{
+	int status;
+	struct smb_filename *old_full_fname = NULL;
+	struct smb_filename *oldclientFname = NULL;
+	struct smb_filename *new_full_fname = NULL;
+	struct smb_filename *newclientFname = NULL;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering mh_linkat\n"));
+
+	old_full_fname = full_path_from_dirfsp_atname(talloc_tos(),
+						srcfsp,
+						old_smb_fname);
+	if (old_full_fname == NULL) {
+		status = -1;
+		goto err;
+	}
+
+	new_full_fname = full_path_from_dirfsp_atname(talloc_tos(),
+						dstfsp,
+						new_smb_fname);
+	if (new_full_fname == NULL) {
+		status = -1;
+		goto err;
+	}
+
+	if (!is_in_media_files(old_full_fname->base_name) &&
+			!is_in_media_files(new_full_fname->base_name)) {
+		TALLOC_FREE(old_full_fname);
+		TALLOC_FREE(new_full_fname);
+
+		status = SMB_VFS_NEXT_LINKAT(handle,
+				srcfsp,
+				old_smb_fname,
+				dstfsp,
+				new_smb_fname,
+				flags);
+		goto out;
+	}
+
+	if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
+				old_full_fname,
+				&oldclientFname))) {
+		goto err;
+	}
+	if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
+				new_full_fname,
+				&newclientFname))) {
+		goto err;
+	}
+
+	status = SMB_VFS_NEXT_LINKAT(handle,
+				handle->conn->cwd_fsp,
+				oldclientFname,
+				handle->conn->cwd_fsp,
+				newclientFname,
+				flags);
+
+err:
+	TALLOC_FREE(old_full_fname);
+	TALLOC_FREE(new_full_fname);
+	TALLOC_FREE(newclientFname);
+	TALLOC_FREE(oldclientFname);
+out:
+	return status;
+}
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ */
+static int mh_mknodat(vfs_handle_struct *handle,
+		files_struct *dirfsp,
+		const struct smb_filename *smb_fname,
+		mode_t mode,
+		SMB_DEV_T dev)
+{
+	int status;
+	struct smb_filename *full_fname = NULL;
+	struct smb_filename *clientFname = NULL;
+	TALLOC_CTX *ctx;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering mh_mknodat\n"));
+
+	full_fname = full_path_from_dirfsp_atname(talloc_tos(),
+						dirfsp,
+						smb_fname);
+	if (full_fname == NULL) {
+		status = -1;
+		goto err;
+	}
+
+	if (!is_in_media_files(full_fname->base_name)) {
+		status = SMB_VFS_NEXT_MKNODAT(handle,
+				dirfsp,
+				smb_fname,
+				mode,
+				dev);
+		goto out;
+	}
+
+	ctx = talloc_tos();
+
+	if ((status = alloc_get_client_smb_fname(handle, ctx,
+				full_fname,
+				&clientFname))) {
+		goto err;
+	}
+
+	status = SMB_VFS_NEXT_MKNODAT(handle,
+			handle->conn->cwd_fsp,
+			clientFname,
+			mode,
+			dev);
+
+err:
+	TALLOC_FREE(clientFname);
+out:
+	TALLOC_FREE(full_fname);
+	return status;
+}
+
+/*
+ * Success: return path pointer
+ * Failure: set errno, return NULL pointer
+ */
+static struct smb_filename *mh_realpath(vfs_handle_struct *handle,
+				TALLOC_CTX *ctx,
+				const struct smb_filename *smb_fname)
+{
+	struct smb_filename *result_fname = NULL;
+	struct smb_filename *clientFname = NULL;
+
+	DEBUG(MH_INFO_DEBUG, ("Entering mh_realpath\n"));
+	if (!is_in_media_files(smb_fname->base_name)) {
+		return SMB_VFS_NEXT_REALPATH(handle, ctx, smb_fname);
+	}
+
+	if (alloc_get_client_smb_fname(handle, ctx,
+				smb_fname,
+				&clientFname) != 0) {
+		goto err;
+	}
+
+	result_fname = SMB_VFS_NEXT_REALPATH(handle, ctx, clientFname);
+err:
+	TALLOC_FREE(clientFname);
+	return result_fname;
+}
+
+/* Ignoring get_real_filename function because the default
+ * doesn't do anything.
+ */
+
+/*
+ * Success: return 0
+ * Failure: set errno, return -1
+ * In this case, "name" is an attr name.
+ */
+
+/* VFS operations structure */
+
+static struct vfs_fn_pointers vfs_mh_fns = {
+	/* Disk operations */
+
+	.statvfs_fn = mh_statvfs,
+
+	/* Directory operations */
+
+	.fdopendir_fn = mh_fdopendir,
+	.readdir_fn = mh_readdir,
+	.seekdir_fn = mh_seekdir,
+	.telldir_fn = mh_telldir,
+	.rewind_dir_fn = mh_rewinddir,
+	.mkdirat_fn = mh_mkdirat,
+	.closedir_fn = mh_closedir,
+
+	/* File operations */
+
+	.openat_fn = mh_openat,
+	.create_file_fn = mh_create_file,
+	.renameat_fn = mh_renameat,
+	.stat_fn = mh_stat,
+	.lstat_fn = mh_lstat,
+	.fstat_fn = mh_fstat,
+	.unlinkat_fn = mh_unlinkat,
+	.lchown_fn = mh_lchown,
+	.chdir_fn = mh_chdir,
+	.symlinkat_fn = mh_symlinkat,
+	.readlinkat_fn = mh_readlinkat,
+	.linkat_fn = mh_linkat,
+	.mknodat_fn = mh_mknodat,
+	.realpath_fn = mh_realpath,
+
+	/* EA operations. */
+	.getxattrat_send_fn = vfs_not_implemented_getxattrat_send,
+	.getxattrat_recv_fn = vfs_not_implemented_getxattrat_recv,
+
+	/* aio operations */
+};
+
+static_decl_vfs;
+NTSTATUS vfs_media_harmony_init(TALLOC_CTX *ctx)
+{
+	NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
+				"media_harmony", &vfs_mh_fns);
+	if (!NT_STATUS_IS_OK(ret))
+	{
+		goto out;
+	}
+
+	vfs_mh_debug_level = debug_add_class("media_harmony");
+
+	if (vfs_mh_debug_level == -1) {
+		vfs_mh_debug_level = DBGC_VFS;
+		DEBUG(1, ("media_harmony_init: Couldn't register custom "
+				"debugging class.\n"));
+	} else {
+		DEBUG(3, ("media_harmony_init: Debug class number of "
+				"'media_harmony': %d\n",
+				vfs_mh_debug_level));
+	}
+
+out:
+	return ret;
+}