From f719db12774d7b22b818adb56c2abd64ab036caf Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@samba.org>
Date: Thu, 11 Apr 2019 16:06:14 +0200
Subject: [PATCH 201/208] s3:rpc_server: Only announce RC4 in netlogon server
 if available

Signed-off-by: Andreas Schneider <asn@samba.org>
---
 source3/rpc_server/netlogon/srv_netlog_nt.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
index cbbf9feedc7..3dd8ecf5ca8 100644
--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
@@ -909,7 +909,6 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
 	/* 0x000001ff */
 	srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT |
 		   NETLOGON_NEG_PERSISTENT_SAMREPL |
-		   NETLOGON_NEG_ARCFOUR |
 		   NETLOGON_NEG_PROMOTION_COUNT |
 		   NETLOGON_NEG_CHANGELOG_BDC |
 		   NETLOGON_NEG_FULL_SYNC_REPL |
@@ -918,6 +917,10 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
 		   NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL |
 		   NETLOGON_NEG_PASSWORD_SET2;
 
+	if (lp_weak_crypto() == SAMBA_WEAK_CRYPTO_ALLOWED) {
+		srv_flgs |= NETLOGON_NEG_ARCFOUR;
+	}
+
 	/* Ensure we support strong (128-bit) keys. */
 	if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) {
 		srv_flgs |= NETLOGON_NEG_STRONG_KEYS;
-- 
2.23.0