--- /dev/null
+/*
+ * implementation of an Shadow Copy module - version 2
+ *
+ * Copyright (C) Andrew Tridgell 2007
+ *
+ * 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 "includes.h"
+
+/*
+
+ This is a 2nd implemetation of a shadow copy module for exposing
+ snapshots to windows clients as shadow copies. This version has the
+ following features:
+
+ 1) you don't need to populate your shares with symlinks to the
+ snapshots. This can be very important when you have thousands of
+ shares, or use [homes]
+
+ 2) the inode number of the files is altered so it is different
+ from the original. This allows the 'restore' button to work
+ without a sharing violation
+
+ Module options:
+
+ shadow:snapdir = <directory where snapshots are kept>
+
+ This is the directory containing the @GMT-* snapshot directories. If it is an absolute
+ path it is used as-is. If it is a relative path, then it is taken relative to the mount
+ point of the filesystem that the root of this share is on
+
+ shadow:basedir = <base directory that snapshots are from>
+
+ This is an optional parameter that specifies the directory that
+ the snapshots are relative to. It defaults to the filesystem
+ mount point
+
+ shadow:fixinodes = yes/no
+
+ If you enable shadow:fixinodes then this module will modify the
+ apparent inode number of files in the snapshot directories using
+ a hash of the files path. This is needed for snapshot systems
+ where the snapshots have the same device:inode number as the
+ original files (such as happens with GPFS snapshots). If you
+ don't set this option then the 'restore' button in the shadow
+ copy UI will fail with a sharing violation.
+
+ Note that the directory names in the snapshot directory must take the form
+ @GMT-YYYY.MM.DD-HH.MM.SS
+
+ The following command would generate a correctly formatted directory name:
+ date -u +@GMT-%Y.%m.%d-%H.%M.%S
+
+ */
+
+static int vfs_shadow_copy2_debug_level = DBGC_VFS;
+
+#undef DBGC_CLASS
+#define DBGC_CLASS vfs_shadow_copy2_debug_level
+
+#define GMT_NAME_LEN 24 /* length of a @GMT- name */
+
+/*
+ make very sure it is one of our special names
+ */
+static inline bool shadow_copy2_match_name(const char *name)
+{
+ unsigned year, month, day, hr, min, sec;
+ if (name[0] != '@') return False;
+ if (strncmp(name, "@GMT-", 5) != 0) return False;
+ if (sscanf(name, "@GMT-%04u.%02u.%02u-%02u.%02u.%02u", &year, &month,
+ &day, &hr, &min, &sec) != 6) {
+ return False;
+ }
+ if (name[24] != 0 && name[24] != '/') {
+ return False;
+ }
+ return True;
+}
+
+/*
+ convert a name to the shadow directory
+ */
+
+#define _SHADOW2_NEXT(op, args, rtype, eret, extra) do { \
+ const char *name = fname; \
+ if (shadow_copy2_match_name(fname)) { \
+ char *name2; \
+ rtype ret; \
+ name2 = convert_shadow2_name(handle, fname); \
+ if (name2 == NULL) { \
+ errno = EINVAL; \
+ return eret; \
+ } \
+ name = name2; \
+ ret = SMB_VFS_NEXT_ ## op args; \
+ talloc_free(name2); \
+ if (ret != eret) extra; \
+ return ret; \
+ } else { \
+ return SMB_VFS_NEXT_ ## op args; \
+ } \
+} while (0)
+
+/*
+ convert a name to the shadow directory: NTSTATUS-specific handling
+ */
+
+#define _SHADOW2_NTSTATUS_NEXT(op, args, eret, extra) do { \
+ const char *name = fname; \
+ if (shadow_copy2_match_name(fname)) { \
+ char *name2; \
+ NTSTATUS ret; \
+ name2 = convert_shadow2_name(handle, fname); \
+ if (name2 == NULL) { \
+ errno = EINVAL; \
+ return eret; \
+ } \
+ name = name2; \
+ ret = SMB_VFS_NEXT_ ## op args; \
+ talloc_free(name2); \
+ if (!NT_STATUS_EQUAL(ret, eret)) extra; \
+ return ret; \
+ } else { \
+ return SMB_VFS_NEXT_ ## op args; \
+ } \
+} while (0)
+
+#define SHADOW2_NTSTATUS_NEXT(op, args, eret) _SHADOW2_NTSTATUS_NEXT(op, args, eret, )
+
+#define SHADOW2_NEXT(op, args, rtype, eret) _SHADOW2_NEXT(op, args, rtype, eret, )
+
+#define SHADOW2_NEXT2(op, args) do { \
+ if (shadow_copy2_match_name(oldname) || shadow_copy2_match_name(newname)) { \
+ errno = EROFS; \
+ return -1; \
+ } else { \
+ return SMB_VFS_NEXT_ ## op args; \
+ } \
+} while (0)
+
+
+/*
+ find the mount point of a filesystem
+ */
+static char *find_mount_point(TALLOC_CTX *mem_ctx, vfs_handle_struct *handle)
+{
+ char *path = talloc_strdup(mem_ctx, handle->conn->connectpath);
+ dev_t dev;
+ struct stat st;
+ char *p;
+
+ if (stat(path, &st) != 0) {
+ talloc_free(path);
+ return NULL;
+ }
+
+ dev = st.st_dev;
+
+ while ((p = strrchr(path, '/')) && p > path) {
+ *p = 0;
+ if (stat(path, &st) != 0) {
+ talloc_free(path);
+ return NULL;
+ }
+ if (st.st_dev != dev) {
+ *p = '/';
+ break;
+ }
+ }
+
+ return path;
+}
+
+/*
+ work out the location of the snapshot for this share
+ */
+static const char *shadow_copy2_find_snapdir(TALLOC_CTX *mem_ctx, vfs_handle_struct *handle)
+{
+ const char *snapdir;
+ char *mount_point;
+ const char *ret;
+
+ snapdir = lp_parm_const_string(SNUM(handle->conn), "shadow", "snapdir", NULL);
+ if (snapdir == NULL) {
+ return NULL;
+ }
+ /* if its an absolute path, we're done */
+ if (*snapdir == '/') {
+ return snapdir;
+ }
+
+ /* other its relative to the filesystem mount point */
+ mount_point = find_mount_point(mem_ctx, handle);
+ if (mount_point == NULL) {
+ return NULL;
+ }
+
+ ret = talloc_asprintf(mem_ctx, "%s/%s", mount_point, snapdir);
+ talloc_free(mount_point);
+ return ret;
+}
+
+/*
+ work out the location of the base directory for snapshots of this share
+ */
+static const char *shadow_copy2_find_basedir(TALLOC_CTX *mem_ctx, vfs_handle_struct *handle)
+{
+ const char *basedir = lp_parm_const_string(SNUM(handle->conn), "shadow", "basedir", NULL);
+
+ /* other its the filesystem mount point */
+ if (basedir == NULL) {
+ basedir = find_mount_point(mem_ctx, handle);
+ }
+
+ return basedir;
+}
+
+/*
+ convert a filename from a share relative path, to a path in the
+ snapshot directory
+ */
+static char *convert_shadow2_name(vfs_handle_struct *handle, const char *fname)
+{
+ TALLOC_CTX *tmp_ctx = talloc_new(handle->data);
+ const char *snapdir, *relpath, *baseoffset, *basedir;
+ size_t baselen;
+ char *ret;
+
+ snapdir = shadow_copy2_find_snapdir(tmp_ctx, handle);
+ if (snapdir == NULL) {
+ DEBUG(2,("no snapdir found for share at %s\n", handle->conn->connectpath));
+ talloc_free(tmp_ctx);
+ return NULL;
+ }
+
+ basedir = shadow_copy2_find_basedir(tmp_ctx, handle);
+ if (basedir == NULL) {
+ DEBUG(2,("no basedir found for share at %s\n", handle->conn->connectpath));
+ talloc_free(tmp_ctx);
+ return NULL;
+ }
+
+ relpath = fname + GMT_NAME_LEN;
+ baselen = strlen(basedir);
+ baseoffset = handle->conn->connectpath + baselen;
+
+ /* some sanity checks */
+ if (strncmp(basedir, handle->conn->connectpath, baselen) != 0 ||
+ (handle->conn->connectpath[baselen] != 0 && handle->conn->connectpath[baselen] != '/')) {
+ DEBUG(0,("convert_shadow2_name: basedir %s is not a parent of %s\n",
+ basedir, handle->conn->connectpath));
+ talloc_free(tmp_ctx);
+ return NULL;
+ }
+
+ if (*relpath == '/') relpath++;
+ if (*baseoffset == '/') baseoffset++;
+
+ ret = talloc_asprintf(handle->data, "%s/%.*s/%s/%s",
+ snapdir,
+ GMT_NAME_LEN, fname,
+ baseoffset,
+ relpath);
+ DEBUG(6,("convert_shadow2_name: '%s' -> '%s'\n", fname, ret));
+ talloc_free(tmp_ctx);
+ return ret;
+}
+
+
+/*
+ simple string hash
+ */
+static uint32 string_hash(const char *s)
+{
+ uint32 n = 0;
+ while (*s) {
+ n = ((n << 5) + n) ^ (uint32)(*s++);
+ }
+ return n;
+}
+
+/*
+ modify a sbuf return to ensure that inodes in the shadow directory
+ are different from those in the main directory
+ */
+static void convert_sbuf(vfs_handle_struct *handle, const char *fname, SMB_STRUCT_STAT *sbuf)
+{
+ if (lp_parm_bool(SNUM(handle->conn), "shadow", "fixinodes", False)) {
+ /* some snapshot systems, like GPFS, return the name
+ device:inode for the snapshot files as the current
+ files. That breaks the 'restore' button in the shadow copy
+ GUI, as the client gets a sharing violation.
+
+ This is a crude way of allowing both files to be
+ open at once. It has a slight chance of inode
+ number collision, but I can't see a better approach
+ without significant VFS changes
+ */
+ uint32_t shash = string_hash(fname) & 0xFF000000;
+ if (shash == 0) {
+ shash = 1;
+ }
+ sbuf->st_ino ^= shash;
+ }
+}
+
+static int shadow_copy2_rename(vfs_handle_struct *handle,
+ const char *oldname, const char *newname)
+{
+ SHADOW2_NEXT2(RENAME, (handle, oldname, newname));
+}
+
+static int shadow_copy2_symlink(vfs_handle_struct *handle,
+ const char *oldname, const char *newname)
+{
+ SHADOW2_NEXT2(SYMLINK, (handle, oldname, newname));
+}
+
+static int shadow_copy2_link(vfs_handle_struct *handle,
+ const char *oldname, const char *newname)
+{
+ SHADOW2_NEXT2(LINK, (handle, oldname, newname));
+}
+
+static int shadow_copy2_open(vfs_handle_struct *handle,
+ const char *fname, files_struct *fsp, int flags, mode_t mode)
+{
+ SHADOW2_NEXT(OPEN, (handle, name, fsp, flags, mode), int, -1);
+}
+
+static SMB_STRUCT_DIR *shadow_copy2_opendir(vfs_handle_struct *handle,
+ const char *fname, const char *mask, uint32 attr)
+{
+ SHADOW2_NEXT(OPENDIR, (handle, name, mask, attr), void*, NULL);
+}
+
+static int shadow_copy2_stat(vfs_handle_struct *handle,
+ const char *fname, SMB_STRUCT_STAT *sbuf)
+{
+ _SHADOW2_NEXT(STAT, (handle, name, sbuf), int, -1, convert_sbuf(handle, fname, sbuf));
+}
+
+static int shadow_copy2_lstat(vfs_handle_struct *handle,
+ const char *fname, SMB_STRUCT_STAT *sbuf)
+{
+ _SHADOW2_NEXT(LSTAT, (handle, name, sbuf), int, -1, convert_sbuf(handle, fname, sbuf));
+}
+
+static int shadow_copy2_fstat(vfs_handle_struct *handle, files_struct *fsp, SMB_STRUCT_STAT *sbuf)
+{
+ int ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
+ if (ret == 0 && shadow_copy2_match_name(fsp->fsp_name)) {
+ convert_sbuf(handle, fsp->fsp_name, sbuf);
+ }
+ return ret;
+}
+
+static int shadow_copy2_unlink(vfs_handle_struct *handle, const char *fname)
+{
+ SHADOW2_NEXT(UNLINK, (handle, name), int, -1);
+}
+
+static int shadow_copy2_chmod(vfs_handle_struct *handle,
+ const char *fname, mode_t mode)
+{
+ SHADOW2_NEXT(CHMOD, (handle, name, mode), int, -1);
+}
+
+static int shadow_copy2_chown(vfs_handle_struct *handle,
+ const char *fname, uid_t uid, gid_t gid)
+{
+ SHADOW2_NEXT(CHOWN, (handle, name, uid, gid), int, -1);
+}
+
+static int shadow_copy2_chdir(vfs_handle_struct *handle,
+ const char *fname)
+{
+ SHADOW2_NEXT(CHDIR, (handle, name), int, -1);
+}
+
+static int shadow_copy2_ntimes(vfs_handle_struct *handle,
+ const char *fname, const struct timespec ts[2])
+{
+ SHADOW2_NEXT(NTIMES, (handle, name, ts), int, -1);
+}
+
+static int shadow_copy2_readlink(vfs_handle_struct *handle,
+ const char *fname, char *buf, size_t bufsiz)
+{
+ SHADOW2_NEXT(READLINK, (handle, name, buf, bufsiz), int, -1);
+}
+
+static int shadow_copy2_mknod(vfs_handle_struct *handle,
+ const char *fname, mode_t mode, SMB_DEV_T dev)
+{
+ SHADOW2_NEXT(MKNOD, (handle, name, mode, dev), int, -1);
+}
+
+static char *shadow_copy2_realpath(vfs_handle_struct *handle,
+ const char *fname, char *resolved_path)
+{
+ SHADOW2_NEXT(REALPATH, (handle, name, resolved_path), void*, NULL);
+}
+
+static NTSTATUS shadow_copy2_get_nt_acl(vfs_handle_struct *handle,
+ const char *fname, uint32 security_info,
+ struct security_descriptor **ppdesc)
+{
+ SHADOW2_NTSTATUS_NEXT(GET_NT_ACL, (handle, name, security_info, ppdesc), NT_STATUS_ACCESS_DENIED);
+}
+
+static NTSTATUS shadow_copy2_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
+ const char *fname, uint32 security_info_sent,
+ struct security_descriptor *psd)
+{
+ SHADOW2_NTSTATUS_NEXT(SET_NT_ACL, (handle, fsp, name, security_info_sent, psd), NT_STATUS_ACCESS_DENIED);
+}
+
+static int shadow_copy2_mkdir(vfs_handle_struct *handle, const char *fname, mode_t mode)
+{
+ SHADOW2_NEXT(MKDIR, (handle, name, mode), int, -1);
+}
+
+static int shadow_copy2_rmdir(vfs_handle_struct *handle, const char *fname)
+{
+ SHADOW2_NEXT(RMDIR, (handle, name), int, -1);
+}
+
+static int shadow_copy2_chflags(vfs_handle_struct *handle, const char *fname, int flags)
+{
+ SHADOW2_NEXT(CHFLAGS, (handle, name, flags), int, -1);
+}
+
+static ssize_t shadow_copy2_getxattr(vfs_handle_struct *handle,
+ const char *fname, const char *aname, void *value, size_t size)
+{
+ SHADOW2_NEXT(GETXATTR, (handle, name, aname, value, size), ssize_t, -1);
+}
+
+static ssize_t shadow_copy2_lgetxattr(vfs_handle_struct *handle,
+ const char *fname, const char *aname, void *value, size_t size)
+{
+ SHADOW2_NEXT(LGETXATTR, (handle, name, aname, value, size), ssize_t, -1);
+}
+
+static ssize_t shadow_copy2_listxattr(struct vfs_handle_struct *handle, const char *fname,
+ char *list, size_t size)
+{
+ SHADOW2_NEXT(LISTXATTR, (handle, name, list, size), ssize_t, -1);
+}
+
+static int shadow_copy2_removexattr(struct vfs_handle_struct *handle, const char *fname,
+ const char *aname)
+{
+ SHADOW2_NEXT(REMOVEXATTR, (handle, name, aname), int, -1);
+}
+
+static int shadow_copy2_lremovexattr(struct vfs_handle_struct *handle, const char *fname,
+ const char *aname)
+{
+ SHADOW2_NEXT(LREMOVEXATTR, (handle, name, aname), int, -1);
+}
+
+static int shadow_copy2_setxattr(struct vfs_handle_struct *handle, const char *fname,
+ const char *aname, const void *value, size_t size, int flags)
+{
+ SHADOW2_NEXT(SETXATTR, (handle, name, aname, value, size, flags), int, -1);
+}
+
+static int shadow_copy2_lsetxattr(struct vfs_handle_struct *handle, const char *fname,
+ const char *aname, const void *value, size_t size, int flags)
+{
+ SHADOW2_NEXT(LSETXATTR, (handle, name, aname, value, size, flags), int, -1);
+}
+
+static int shadow_copy2_chmod_acl(vfs_handle_struct *handle,
+ const char *fname, mode_t mode)
+{
+ /* If the underlying VFS doesn't have ACL support... */
+ if (!handle->vfs_next.ops.chmod_acl) {
+ errno = ENOSYS;
+ return -1;
+ }
+ SHADOW2_NEXT(CHMOD_ACL, (handle, name, mode), int, -1);
+}
+
+static int shadow_copy2_get_shadow_copy2_data(vfs_handle_struct *handle,
+ files_struct *fsp,
+ SHADOW_COPY_DATA *shadow_copy2_data,
+ bool labels)
+{
+ SMB_STRUCT_DIR *p;
+ const char *snapdir;
+ SMB_STRUCT_DIRENT *d;
+ TALLOC_CTX *tmp_ctx = talloc_new(handle->data);
+
+ snapdir = shadow_copy2_find_snapdir(tmp_ctx, handle);
+ if (snapdir == NULL) {
+ DEBUG(0,("shadow:snapdir not found for %s in get_shadow_copy_data\n",
+ handle->conn->connectpath));
+ errno = EINVAL;
+ talloc_free(tmp_ctx);
+ return -1;
+ }
+
+ p = SMB_VFS_NEXT_OPENDIR(handle, snapdir, NULL, 0);
+
+ if (!p) {
+ DEBUG(0,("shadow_copy2: SMB_VFS_NEXT_OPENDIR() failed for '%s' - %s\n",
+ snapdir, strerror(errno)));
+ talloc_free(tmp_ctx);
+ return -1;
+ }
+
+ talloc_free(tmp_ctx);
+
+ shadow_copy2_data->num_volumes = 0;
+ shadow_copy2_data->labels = NULL;
+
+ while ((d = SMB_VFS_NEXT_READDIR(handle, p))) {
+ SHADOW_COPY_LABEL *tlabels;
+
+ /* ignore names not of the right form in the snapshot directory */
+ if (!shadow_copy2_match_name(d->d_name)) {
+ continue;
+ }
+
+ if (!labels) {
+ /* the caller doesn't want the labels */
+ shadow_copy2_data->num_volumes++;
+ continue;
+ }
+
+ tlabels = talloc_realloc(shadow_copy2_data->mem_ctx,
+ shadow_copy2_data->labels,
+ SHADOW_COPY_LABEL, shadow_copy2_data->num_volumes+1);
+ if (tlabels == NULL) {
+ DEBUG(0,("shadow_copy2: out of memory\n"));
+ SMB_VFS_NEXT_CLOSEDIR(handle, p);
+ return -1;
+ }
+
+ strlcpy(tlabels[shadow_copy2_data->num_volumes], d->d_name, sizeof(*tlabels));
+ shadow_copy2_data->num_volumes++;
+ shadow_copy2_data->labels = tlabels;
+ }
+
+ SMB_VFS_NEXT_CLOSEDIR(handle,p);
+ return 0;
+}
+
+/* VFS operations structure */
+
+static vfs_op_tuple shadow_copy2_ops[] = {
+ {SMB_VFS_OP(shadow_copy2_opendir), SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_TRANSPARENT},
+
+ /* directory operations */
+ {SMB_VFS_OP(shadow_copy2_mkdir), SMB_VFS_OP_MKDIR, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_rmdir), SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_TRANSPARENT},
+
+ /* xattr and flags operations */
+ {SMB_VFS_OP(shadow_copy2_chflags), SMB_VFS_OP_CHFLAGS, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_getxattr), SMB_VFS_OP_GETXATTR, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_lgetxattr), SMB_VFS_OP_LGETXATTR, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_listxattr), SMB_VFS_OP_LISTXATTR, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_removexattr), SMB_VFS_OP_REMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_lremovexattr),SMB_VFS_OP_LREMOVEXATTR,SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_setxattr), SMB_VFS_OP_SETXATTR, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_lsetxattr), SMB_VFS_OP_LSETXATTR, SMB_VFS_LAYER_TRANSPARENT},
+
+ /* File operations */
+ {SMB_VFS_OP(shadow_copy2_open), SMB_VFS_OP_OPEN, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_rename), SMB_VFS_OP_RENAME, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_stat), SMB_VFS_OP_STAT, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_lstat), SMB_VFS_OP_LSTAT, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_fstat), SMB_VFS_OP_FSTAT, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_unlink), SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_chmod), SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_chown), SMB_VFS_OP_CHOWN, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_chdir), SMB_VFS_OP_CHDIR, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_ntimes), SMB_VFS_OP_NTIMES, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_symlink), SMB_VFS_OP_SYMLINK, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_readlink), SMB_VFS_OP_READLINK, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_link), SMB_VFS_OP_LINK, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_mknod), SMB_VFS_OP_MKNOD, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_realpath), SMB_VFS_OP_REALPATH, SMB_VFS_LAYER_TRANSPARENT},
+
+ /* NT File ACL operations */
+ {SMB_VFS_OP(shadow_copy2_get_nt_acl), SMB_VFS_OP_GET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(shadow_copy2_set_nt_acl), SMB_VFS_OP_SET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT},
+
+ /* POSIX ACL operations */
+ {SMB_VFS_OP(shadow_copy2_chmod_acl), SMB_VFS_OP_CHMOD_ACL, SMB_VFS_LAYER_TRANSPARENT},
+
+ /* special shadown copy op */
+ {SMB_VFS_OP(shadow_copy2_get_shadow_copy2_data),
+ SMB_VFS_OP_GET_SHADOW_COPY_DATA,SMB_VFS_LAYER_OPAQUE},
+
+ {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
+};
+
+NTSTATUS vfs_shadow_copy2_init(void);
+NTSTATUS vfs_shadow_copy2_init(void)
+{
+ NTSTATUS ret;
+
+ ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "shadow_copy2", shadow_copy2_ops);
+
+ if (!NT_STATUS_IS_OK(ret))
+ return ret;
+
+ vfs_shadow_copy2_debug_level = debug_add_class("shadow_copy2");
+ if (vfs_shadow_copy2_debug_level == -1) {
+ vfs_shadow_copy2_debug_level = DBGC_VFS;
+ DEBUG(0, ("%s: Couldn't register custom debugging class!\n",
+ "vfs_shadow_copy2_init"));
+ } else {
+ DEBUG(10, ("%s: Debug class number of '%s': %d\n",
+ "vfs_shadow_copy2_init","shadow_copy2",vfs_shadow_copy2_debug_level));
+ }
+
+ return ret;
+}
git.samba.org / gd / samba / .git / commitdiff