From d56937f9dc7e13c61e2823741eeba7ee1e832d75 Mon Sep 17 00:00:00 2001
From: Tobias Waldekranz <tobias@waldekranz.com>
Date: Mon, 12 Dec 2022 09:14:08 +0100
Subject: [PATCH] qemu: Support passing custom options to setup user mode
 networking

This can be used to specify things like port forwards, TFTP server,
etc.
---
 qemu/Config.in | 6 ++++++
 qemu/qemu.sh   | 4 +++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/qemu/Config.in b/qemu/Config.in
index fc4dc2e2..ef6d5253 100644
--- a/qemu/Config.in
+++ b/qemu/Config.in
@@ -61,6 +61,12 @@ config QEMU_NET_BRIDGE_DEV
 	depends on QEMU_NET_BRIDGE
 	default "virbr0"
 
+config QEMU_NET_USER_OPTS
+	string "User mode options"
+	depends on QEMU_NET_USER
+	help
+	  Extra -nic user,<OPTIONS>
+
 config QEMU_NET_TAP_N
 	int "Number of TAPs"
 	depends on QEMU_NET_TAP
diff --git a/qemu/qemu.sh b/qemu/qemu.sh
index 896558cc..0d07dcd9 100755
--- a/qemu/qemu.sh
+++ b/qemu/qemu.sh
@@ -75,7 +75,9 @@ net_args()
 	    echo -n "-nic tap,ifname=qtap$i,script=no,model=$QEMU_NET_MODEL "
 	done
     elif [ "$QEMU_NET_USER" = "y" ]; then
-	echo -n "-nic user,model=$QEMU_NET_MODEL "
+	[ "$QEMU_NET_USER_OPTS" ] && QEMU_NET_USER_OPTS="$QEMU_NET_USER_OPTS,"
+
+	echo -n "-nic user,${QEMU_NET_USER_OPTS}model=$QEMU_NET_MODEL "
     else
 	echo -n "-nic none"
     fi