[OpenWrt-Devel] [PATCH] dropbear: close all active clients on shutdown

Luis Araneda luaraneda at gmail.com
Wed Jul 11 22:36:03 EDT 2018

From: Christian Schoenebeck <christian.schoenebeck at gmail.com>

Override the default shutdown action (stop) and close all processes
of dropbear

Since commit 498fe85, the stop action only closes the process
that's listening for new connections, maintaining the ones with
existing clients.
This poses a problem when restarting or shutting-down a device,
because the connections with existing SSH clients, like OpenSSH,
are not properly closed, causing them to hang.

This situation can be avoided by closing all dropbear processes when
shutting-down the system, which closes properly the connections with
current clients.

Signed-off-by: Christian Schoenebeck <christian.schoenebeck at gmail.com>
[Luis: Rework commit message]
Signed-off-by: Luis Araneda <luaraneda at gmail.com>
 package/network/services/dropbear/files/dropbear.init | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/package/network/services/dropbear/files/dropbear.init b/package/network/services/dropbear/files/dropbear.init
index 2225113498..b86e52d8bc 100755
--- a/package/network/services/dropbear/files/dropbear.init
+++ b/package/network/services/dropbear/files/dropbear.init
@@ -148,6 +148,11 @@ service_triggers()
 	procd_add_validation validate_section_dropbear
+shutdown() {
+	# close all open connections
+	killall dropbear
 	local ignore=''

openwrt-devel mailing list
openwrt-devel at lists.openwrt.org

More information about the openwrt-devel mailing list