From: Stefan Metzmacher <metze@samba.org>
Date: Tue, 19 Apr 2016 05:20:28 +0000 (+0200)
Subject: s3:libsmb: don't finish the gensec handshake for guest logins
X-Git-Tag: samba-4.2.12~19
X-Git-Url: http://git.samba.org/?p=samba.git;a=commitdiff_plain;h=0eebd689c51bddc140b0c00fb10242bace07de2d

s3:libsmb: don't finish the gensec handshake for guest logins

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11841

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
(cherry picked from commit fa5799207e55ee8e329f36f784d027845eaf0e34)
---

diff --git a/source3/libsmb/cliconnect.c b/source3/libsmb/cliconnect.c
index bad6c288a13..c4ac605396c 100644
--- a/source3/libsmb/cliconnect.c
+++ b/source3/libsmb/cliconnect.c
@@ -1590,6 +1590,27 @@ static void cli_session_setup_gensec_remote_done(struct tevent_req *subreq)
 	}
 
 	if (NT_STATUS_IS_OK(status)) {
+		struct smbXcli_session *session = NULL;
+		bool is_guest = false;
+
+		if (smbXcli_conn_protocol(state->cli->conn) >= PROTOCOL_SMB2_02) {
+			session = state->cli->smb2.session;
+		} else {
+			session = state->cli->smb1.session;
+		}
+
+		is_guest = smbXcli_session_is_guest(session);
+		if (is_guest) {
+			/*
+			 * We can't finish the gensec handshake, we don't
+			 * have a negotiated session key.
+			 *
+			 * So just pretend we are completely done.
+			 */
+			state->blob_in = data_blob_null;
+			state->local_ready = true;
+		}
+
 		state->remote_ready = true;
 	}