From 16122117a5fb376bd5d5ed905a5eea9076d54b04 Mon Sep 17 00:00:00 2001
From: Hans Dedecker <dedeckeh@gmail.com>
Date: Wed, 27 Apr 2016 11:14:00 +0200
Subject: [PATCH] dropbear: Add procd interface triggers when interface config
 is specified

A dropbear instance having an interface config won't start if the interface is down as no
IP address is available.
Adding interface triggers for each configured interface executing the dropbear reload script
will start the dropbear instance when the interface is up.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
---
 package/network/services/dropbear/Makefile    |  2 +-
 .../services/dropbear/files/dropbear.init     | 22 ++++++++++++++++++-
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/package/network/services/dropbear/Makefile b/package/network/services/dropbear/Makefile
index 593e0a81bf..8d4e7bc7fa 100644
--- a/package/network/services/dropbear/Makefile
+++ b/package/network/services/dropbear/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=dropbear
 PKG_VERSION:=2015.71
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:= \
diff --git a/package/network/services/dropbear/files/dropbear.init b/package/network/services/dropbear/files/dropbear.init
index 03745c995b..5c3345d40c 100755
--- a/package/network/services/dropbear/files/dropbear.init
+++ b/package/network/services/dropbear/files/dropbear.init
@@ -106,6 +106,12 @@ keygen()
 	chmod 0700 /etc/dropbear
 }
 
+load_interfaces()
+{
+	config_get interface "$1" Interface
+	interfaces=" ${interface} ${interfaces}"
+}
+
 start_service()
 {
 	[ -s /etc/dropbear/dropbear_rsa_host_key ] || keygen
@@ -119,7 +125,21 @@ start_service()
 
 service_triggers()
 {
-	procd_add_reload_trigger "dropbear"
+	local interfaces
+
+	procd_open_trigger
+	procd_add_config_trigger "config.change" "dropbear" /etc/init.d/dropbear reload
+
+	config_load "${NAME}"
+	config_foreach load_interfaces dropbear
+
+	[ -n "${interfaces}" ] & {
+		for n in $interfaces ; do
+			procd_add_interface_trigger "interface.*" $n /etc/init.d/dropbear reload
+		done
+	}
+	procd_close_trigger
+
 	procd_add_validation validate_section_dropbear
 }