shadow_copy2: implement disk_free

Signed-off-by: Michael Adam <obnox@samba.org>

Reviewed-by: Andrew Bartlett <abartlet@samba.org>

1 files changed, 37 insertions, 0 deletions

diff --git a/source3/modules/vfs_shadow_copy2.c b/source3/modules/vfs_shadow_copy2.c
index 4c8ee25678..9462187362 100644
--- a/source3/modules/vfs_shadow_copy2.c
+++ b/source3/modules/vfs_shadow_copy2.c
@@ -1576,6 +1576,42 @@ static int shadow_copy2_get_real_filename(struct vfs_handle_struct *handle,
 	return ret;
 }
 
+static uint64_t shadow_copy2_disk_free(vfs_handle_struct *handle,
+				       const char *path, bool small_query,
+				       uint64_t *bsize, uint64_t *dfree,
+				       uint64_t *dsize)
+{
+	time_t timestamp;
+	char *stripped;
+	ssize_t ret;
+	int saved_errno;
+	char *conv;
+
+	if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, path,
+					 &timestamp, &stripped)) {
+		return -1;
+	}
+	if (timestamp == 0) {
+		return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
+					      bsize, dfree, dsize);
+	}
+
+	conv = shadow_copy2_convert(talloc_tos(), handle, stripped, timestamp);
+	TALLOC_FREE(stripped);
+	if (conv == NULL) {
+		return -1;
+	}
+
+	ret = SMB_VFS_NEXT_DISK_FREE(handle, conv, small_query, bsize, dfree,
+				     dsize);
+
+	saved_errno = errno;
+	TALLOC_FREE(conv);
+	errno = saved_errno;
+
+	return ret;
+}
+
 static int shadow_copy2_connect(struct vfs_handle_struct *handle,
 				const char *service, const char *user)
 {
@@ -1814,6 +1850,7 @@ static int shadow_copy2_connect(struct vfs_handle_struct *handle,
 static struct vfs_fn_pointers vfs_shadow_copy2_fns = {
 	.connect_fn = shadow_copy2_connect,
 	.opendir_fn = shadow_copy2_opendir,
+	.disk_free_fn = shadow_copy2_disk_free,
 	.rename_fn = shadow_copy2_rename,
 	.link_fn = shadow_copy2_link,
 	.symlink_fn = shadow_copy2_symlink,