vfs: make dirfsp arg to SMB_VFS_READLINKAT() const

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

examples/VFS/skel_opaque.c

@@ -474,7 +474,7 @@ static int skel_symlinkat(vfs_handle_struct *handle,
 }
 
 static int skel_vfs_readlinkat(vfs_handle_struct *handle,
-			files_struct *dirfsp,
+			const struct files_struct *dirfsp,
 			const struct smb_filename *smb_fname,
 			char *buf,
 			size_t bufsiz)

examples/VFS/skel_transparent.c

@@ -600,7 +600,7 @@ static int skel_symlinkat(vfs_handle_struct *handle,
 }
 
 static int skel_vfs_readlinkat(vfs_handle_struct *handle,
-			files_struct *dirfsp,
+			const struct files_struct *dirfsp,
 			const struct smb_filename *smb_fname,
 			char *buf,
 			size_t bufsiz)

source3/include/vfs.h

@@ -330,6 +330,7 @@
  * Change to Version 44 - will ship with 4.14.
  * Version 44 - Remove dirfsp arg from struct files_struct
  * Version 44 - Remove dirfsp arg to SMB_VFS_CREATE_FILE()
+ * Version 44 - Make dirfsp arg to SMB_VFS_READLINKAT() const
  */
 
 #define SMB_VFS_INTERFACE_VERSION 44
@@ -863,7 +864,7 @@ struct vfs_fn_pointers {
 				struct files_struct *dirfsp,
 				const struct smb_filename *new_smb_fname);
 	int (*readlinkat_fn)(struct vfs_handle_struct *handle,
-				struct files_struct *dirfsp,
+				const struct files_struct *dirfsp,
 				const struct smb_filename *smb_fname,
 				char *buf,
 				size_t bufsiz);
@@ -1407,7 +1408,7 @@ int smb_vfs_call_symlinkat(struct vfs_handle_struct *handle,
 			struct files_struct *dirfsp,
 			const struct smb_filename *new_smb_fname);
 int smb_vfs_call_readlinkat(struct vfs_handle_struct *handle,
-			struct files_struct *dirfsp,
+			const struct files_struct *dirfsp,
 			const struct smb_filename *smb_fname,
 			char *buf,
 			size_t bufsiz);
@@ -1853,7 +1854,7 @@ int vfs_not_implemented_symlinkat(vfs_handle_struct *handle,
 				struct files_struct *dirfsp,
 				const struct smb_filename *new_smb_fname);
 int vfs_not_implemented_vfs_readlinkat(vfs_handle_struct *handle,
-			struct files_struct *dirfsp,
+			const struct files_struct *dirfsp,
 			const struct smb_filename *smb_fname,
 			char *buf,
 			size_t bufsiz);

source3/modules/vfs_cap.c

@@ -519,7 +519,7 @@ static int cap_symlinkat(vfs_handle_struct *handle,
 }
 
 static int cap_readlinkat(vfs_handle_struct *handle,
-			files_struct *dirfsp,
+			const struct files_struct *dirfsp,
 			const struct smb_filename *smb_fname,
 			char *buf,
 			size_t bufsiz)

source3/modules/vfs_ceph.c

@@ -1051,7 +1051,7 @@ static int cephwrap_symlinkat(struct vfs_handle_struct *handle,
 }
 
 static int cephwrap_readlinkat(struct vfs_handle_struct *handle,
-		files_struct *dirfsp,
+		const struct files_struct *dirfsp,
 		const struct smb_filename *smb_fname,
 		char *buf,
 		size_t bufsiz)

source3/modules/vfs_ceph_snapshots.c

@@ -1023,7 +1023,7 @@ static int ceph_snap_gmt_ntimes(vfs_handle_struct *handle,
 }
 
 static int ceph_snap_gmt_readlinkat(vfs_handle_struct *handle,
-				files_struct *dirfsp,
+				const struct files_struct *dirfsp,
 				const struct smb_filename *csmb_fname,
 				char *buf,
 				size_t bufsiz)

source3/modules/vfs_default.c

@@ -2883,7 +2883,7 @@ static int vfswrap_symlinkat(vfs_handle_struct *handle,
 }
 
 static int vfswrap_readlinkat(vfs_handle_struct *handle,
-			files_struct *dirfsp,
+			const struct files_struct *dirfsp,
 			const struct smb_filename *smb_fname,
 			char *buf,
 			size_t bufsiz)

source3/modules/vfs_expand_msdfs.c

@@ -183,7 +183,7 @@ static char *expand_msdfs_target(TALLOC_CTX *ctx,
 }
 
 static int expand_msdfs_readlinkat(struct vfs_handle_struct *handle,
-				files_struct *dirfsp,
+				const struct files_struct *dirfsp,
 				const struct smb_filename *smb_fname,
 				char *buf,
 				size_t bufsiz)

source3/modules/vfs_full_audit.c

@@ -1813,7 +1813,7 @@ static int smb_full_audit_symlinkat(vfs_handle_struct *handle,
 }
 
 static int smb_full_audit_readlinkat(vfs_handle_struct *handle,
-			files_struct *dirfsp,
+			const struct files_struct *dirfsp,
 			const struct smb_filename *smb_fname,
 			char *buf,
 			size_t bufsiz)

source3/modules/vfs_glusterfs.c

@@ -1703,7 +1703,7 @@ static int vfs_gluster_symlinkat(struct vfs_handle_struct *handle,
 }
 
 static int vfs_gluster_readlinkat(struct vfs_handle_struct *handle,
-				files_struct *dirfsp,
+				const struct files_struct *dirfsp,
 				const struct smb_filename *smb_fname,
 				char *buf,
 				size_t bufsiz)

source3/modules/vfs_media_harmony.c

@@ -1643,7 +1643,7 @@ out:
  * Failure: set errno, return -1
  */
 static int mh_readlinkat(vfs_handle_struct *handle,
-		files_struct *dirfsp,
+		const struct files_struct *dirfsp,
 		const struct smb_filename *smb_fname,
 		char *buf,
 		size_t bufsiz)

source3/modules/vfs_not_implemented.c

@@ -472,7 +472,7 @@ int vfs_not_implemented_symlinkat(vfs_handle_struct *handle,
 }
 
 int vfs_not_implemented_vfs_readlinkat(vfs_handle_struct *handle,
-			files_struct *dirfsp,
+			const struct files_struct *dirfsp,
 			const struct smb_filename *smb_fname,
 			char *buf,
 			size_t bufsiz)

source3/modules/vfs_shadow_copy2.c

@@ -1568,7 +1568,7 @@ static int shadow_copy2_ntimes(vfs_handle_struct *handle,
 }
 
 static int shadow_copy2_readlinkat(vfs_handle_struct *handle,
-				files_struct *dirfsp,
+				const struct files_struct *dirfsp,
 				const struct smb_filename *smb_fname,
 				char *buf,
 				size_t bufsiz)

source3/modules/vfs_snapper.c

@@ -2237,7 +2237,7 @@ static int snapper_gmt_ntimes(vfs_handle_struct *handle,
 }
 
 static int snapper_gmt_readlinkat(vfs_handle_struct *handle,
-				files_struct *dirfsp,
+				const struct files_struct *dirfsp,
 				const struct smb_filename *smb_fname,
 				char *buf,
 				size_t bufsiz)

source3/modules/vfs_time_audit.c

@@ -1433,7 +1433,7 @@ static int smb_time_audit_symlinkat(vfs_handle_struct *handle,
 }
 
 static int smb_time_audit_readlinkat(vfs_handle_struct *handle,
-				files_struct *dirfsp,
+				const struct files_struct *dirfsp,
 				const struct smb_filename *smb_fname,
 				char *buf,
 				size_t bufsiz)

source3/modules/vfs_unityed_media.c

@@ -1284,7 +1284,7 @@ err:
 }
 
 static int um_readlinkat(vfs_handle_struct *handle,
-			files_struct *dirfsp,
+			const struct files_struct *dirfsp,
 			const struct smb_filename *smb_fname,
 			char *buf,
 			size_t bufsiz)

source3/smbd/vfs.c

@@ -2290,7 +2290,7 @@ int smb_vfs_call_symlinkat(struct vfs_handle_struct *handle,
 }
 
 int smb_vfs_call_readlinkat(struct vfs_handle_struct *handle,
-			files_struct *dirfsp,
+			const struct files_struct *dirfsp,
 			const struct smb_filename *smb_fname,
 			char *buf,
 			size_t bufsiz)