From 7ec34045f5ffbd548ddb72a712a0b175b953ffee Mon Sep 17 00:00:00 2001
From: Sadie Powell
Date: Wed, 24 Jun 2026 03:40:44 +0100
Subject: Move the challenge out of CAPAB CAPABILITIES into its own command.

---
 modules/spanningtree/utils.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'modules/spanningtree/utils.cpp')

diff --git a/modules/spanningtree/utils.cpp b/modules/spanningtree/utils.cpp
index 4a508f544..c6af1ec2c 100644
--- a/modules/spanningtree/utils.cpp
+++ b/modules/spanningtree/utils.cpp
@@ -302,8 +302,8 @@ void SpanningTreeUtilities::ReadConfiguration(ConfigStatus& status)
 		if ((L->SendPass.find(' ') != std::string::npos) || (L->RecvPass.find(' ') != std::string::npos))
 			throw ModuleException(Creator->weak_from_this(), "Link block '" + L->Name + "' has a password set that contains a space character which is invalid");
 
-		if ((L->SendPass[0] == ':') || (L->RecvPass[0] == ':'))
-			throw ModuleException(Creator->weak_from_this(), "Link block '" + L->Name + "' has a password set that begins with a colon (:) which is invalid");
+		if ((L->SendPass[0] == ':') || (L->RecvPass[0] == ':') || (L->SendPass[0] == '$') || (L->RecvPass[0] == '$'))
+			throw ModuleException(Creator->weak_from_this(), "Link block '" + L->Name + "' has a password set that begins with a colon (:) or dollar sign ($) which is invalid");
 
 		if (L->IPAddr.empty())
 		{
-- 
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