From f0eb42a2fcba7097c9c90a7d991a452417d062cf Mon Sep 17 00:00:00 2001
From: Armin Novak <armin.novak@thincast.com>
Date: Thu, 4 Sep 2025 15:06:53 +0200
Subject: [PATCH] [winpr,sspi] log mechanisms not valid

Log SSPI mechanisms that are available but not usable due to
configuration.
---
 winpr/libwinpr/sspi/Negotiate/negotiate.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/winpr/libwinpr/sspi/Negotiate/negotiate.c b/winpr/libwinpr/sspi/Negotiate/negotiate.c
index 32bfd3591..d7644a41e 100644
--- a/winpr/libwinpr/sspi/Negotiate/negotiate.c
+++ b/winpr/libwinpr/sspi/Negotiate/negotiate.c
@@ -717,7 +717,10 @@ static SECURITY_STATUS SEC_ENTRY negotiate_InitializeSecurityContextW(
 			WINPR_ASSERT(pkg->table_w);
 
 			if (!cred->valid)
+			{
+				WLog_DBG(TAG, "Unavailable mechanism: %s", negotiate_mech_name(cred->mech->oid));
 				continue;
+			}
 
 			/* Send an optimistic token for the first valid mechanism */
 			if (!init_context.mech)