1 files changed, 15 insertions, 1 deletions

diff --git a/PROTOCOL b/PROTOCOL
index 48b3a4400..0363314c0 100644
--- a/PROTOCOL
+++ b/PROTOCOL
@@ -331,4 +331,18 @@ link(oldpath, newpath) and will respond with a SSH_FXP_STATUS message.
 This extension is advertised in the SSH_FXP_VERSION hello with version
 "1".
 
-$OpenBSD: PROTOCOL,v 1.20 2013/01/08 18:49:04 markus Exp $
+10. sftp: Extension request "fsync@openssh.com"
+
+This request asks the server to call fsync(2) on an open file handle.
+
+        uint32          id
+        string          "fsync@openssh.com"
+        string          handle
+
+One receiving this request, a server will call fsync(handle_fd) and will
+respond with a SSH_FXP_STATUS message.
+
+This extension is advertised in the SSH_FXP_VERSION hello with version
+"1".
+
+$OpenBSD: PROTOCOL,v 1.21 2013/10/17 00:30:13 djm Exp $