From 365f76551af6786d9dda6cb20463a7c37321150e Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Fri, 22 Jul 2011 00:21:20 +0000
Subject: [PATCH] base-files: attempt bring up related wifi devices when
 calling ifup If a user invoked /sbin/ifup to bring up an interface, the setup
 used to fail in case of wireless networks tied to a non-bridged interface
 definition. Likewise, the bringup of "lan" in the default configuration will
 reinitialize the bridge but do not re-join the wireless network to it,
 requiring an extra call to /sbin/wifi (which might not be possible anymore
 due to a severed link if connected wirelessly).

The changeset modifies the "ifup" command to search for related wireless
devices and call "wifi up" on them if applicable. This way the commands for
wireless and non-wireless interfaces are unified from a cli point of view.

The "ifup -a" case has not been changed to keep the logic of the
/etc/init.d/network boot sequence. This might be changed later.

Solves #9763.

SVN-Revision: 27720
---
 package/base-files/Makefile          |  2 +-
 package/base-files/files/sbin/ifdown | 22 +++++++++------
 package/base-files/files/sbin/ifup   | 42 +++++++++++++++++++++++-----
 3 files changed, 49 insertions(+), 17 deletions(-)

diff --git a/package/base-files/Makefile b/package/base-files/Makefile
index 9cac1f058b..5553c99afb 100644
--- a/package/base-files/Makefile
+++ b/package/base-files/Makefile
@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=base-files
-PKG_RELEASE:=76
+PKG_RELEASE:=77
 
 PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/
 PKG_BUILD_DEPENDS:=opkg/host
diff --git a/package/base-files/files/sbin/ifdown b/package/base-files/files/sbin/ifdown
index 92cdfd2b02..1455a9de77 100755
--- a/package/base-files/files/sbin/ifdown
+++ b/package/base-files/files/sbin/ifdown
@@ -1,16 +1,20 @@
 #!/bin/sh
-# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2006-2011 OpenWrt.org
 
 . /etc/functions.sh
 [ $# = 0 ] && { echo "  $0 <group>"; exit; }
-[ "x$1" = "x-a" ] && {
-	[ -e "/tmp/resolv.conf.auto" ] && rm /tmp/resolv.conf.auto
-	config_cb() {
-		[ interface != "$1" -o -z "$2" ] || eval "$0 $2"
-	}
-	config_load network
-	exit
-}
+
+case "$1" in
+	"-a")
+		[ -e "/tmp/resolv.conf.auto" ] && rm /tmp/resolv.conf.auto
+		config_cb() {
+			[ interface != "$1" -o -z "$2" ] || eval "$0 -w $2"
+		}
+		config_load network
+		exit 0
+	;;
+	"-w") shift ;;
+esac
 
 include /lib/network
 scan_interfaces
diff --git a/package/base-files/files/sbin/ifup b/package/base-files/files/sbin/ifup
index 6acd2ed099..5f8d80dc2d 100755
--- a/package/base-files/files/sbin/ifup
+++ b/package/base-files/files/sbin/ifup
@@ -5,14 +5,42 @@
 
 . /etc/functions.sh
 [ $# = 0 ] && { echo "  $0 <group>"; exit; }
-[ "x$1" = "x-a" ] && {
-	[ -e "/tmp/resolv.conf.auto" ] && rm /tmp/resolv.conf.auto
-	config_cb() {
-		[ interface != "$1" -o -z "$2" ] || eval "$0 $2"
+
+setup_wifi=1
+
+case "$1" in
+	"-a")
+		[ -e "/tmp/resolv.conf.auto" ] && rm /tmp/resolv.conf.auto
+		config_cb() {
+			[ interface != "$1" -o -z "$2" ] || eval "$0 -w $2"
+		}
+		config_load network
+		exit 0
+	;;
+	"-w") setup_wifi=0; shift ;;
+esac
+
+if [ $setup_wifi -gt 0 ] && grep -q config /etc/config/wireless; then
+	find_related_radios() {
+		local wdev wnet
+		config_get wdev "$1" device
+		config_get wnet "$1" network
+
+		if [ -n "$wdev" ] && [ "$wnet" = "$network" ]; then
+			append radio_devs "$wdev" "$N"
+		fi
 	}
-	config_load network
-	exit
-}
+
+	local radio_devs
+	local network="$1"
+	config_load wireless
+	config_foreach find_related_radios wifi-iface
+
+	local dev
+	for dev in $(echo "$radio_devs" | sort -u); do
+		/sbin/wifi up "$dev"
+	done
+fi
 
 include /lib/network
 scan_interfaces
-- 
2.30.2