main/openrc: improve networking script

We start interfaces one by one so we get a report which interface
fails if any.

We consider networking service as 'running' if any interface starts.
(cherry picked from commit ad6c64eab47b57d8d5368a05c4c5fbef8627686a)

2 files changed, 55 insertions, 14 deletions

diff --git a/main/openrc/APKBUILD b/main/openrc/APKBUILD
index bf7bc6969c..997d6c16f9 100644
--- a/main/openrc/APKBUILD
+++ b/main/openrc/APKBUILD
@@ -1,7 +1,7 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=openrc
 pkgver=0.6.1
-pkgrel=3
+pkgrel=4
 pkgdesc="OpenRC manages the services, startup and shutdown of a host"
 url="http://roy.marples.name/openrc"
 license='BSD-2'
@@ -67,6 +67,6 @@ b1e64885f301166df30be3e3cf5338ff  hwdrivers.initd
 33ca3e558c42cdd17adccbc7807298f7  keymaps.initd
 098a1f16812f56fcb56eb6b6f0fa31f6  modules.initd
 408e28f247c7cc71fa104c07869417f4  modloop.initd
-c05fc2ea5d771ca68cbb8d91494c9a2b  networking.initd
+daed2d1f6dffb0b87cc49feb53725aa2  networking.initd
 0a615d93aab691364c03539c3b496dcc  local.start
 c1ec888202d868710b5749f7b217d1e3  modloop.confd"
diff --git a/main/openrc/networking.initd b/main/openrc/networking.initd
index 0d22582ea9..c37be9956d 100644
--- a/main/openrc/networking.initd
+++ b/main/openrc/networking.initd
@@ -2,27 +2,68 @@
 
 # note that the spoofprotect, syncoockies and ip_forward options are set in 
 # /etc/sysctl.conf
+
+ifconf=/etc/network/interfaces
+ifstate=/var/run/ifstate
+
+single_iface="${SVCNAME#*.}"
+if [ "$single_iface" = "$SVCNAME" ]; then
+        single_iface=
+fi
+
 depend() {
         after bootmisc hwdrivers modules
         provide net
         keyword nojail noprefix novserver
 }
 
-start() {
-        ebegin "Configuring network interfaces"
-        ifup -a >/dev/null 2>&1
-        eend $?
+# find interfaces we want to start
+find_ifaces() {
+        if [ -n "$single_iface" ]; then
+                echo $single_iface
+        else
+                awk '$1 == "auto" { print $2}' $ifconf
+        fi
 }
 
-stop() {
-        ebegin "Deconfiguring network interfaces"
-        ifdown -a >/dev/null 2>&1
-        eend $?
+# return the list of interfaces we should try stop
+find_running_ifaces() {
+        if [ -n "$single_iface" ]; then
+                echo $single_iface
+        else
+                awk -F= '{print $2}' $ifstate
+        fi
 }
 
-restart() {
-        ebegin "Reconfiguring network interfaces"
-        ifdown -a >/dev/null 2>&1 && ifup -a >/dev/null 2>&1
-        eend $?
+start() {
+        local iface= ret=1
+        ebegin "Starting networking"
+        eindent
+        for iface in $(find_ifaces); do
+                local r=0
+                ebegin "$iface"
+                if ! ifup $iface >/dev/null; then
+                        ifdown $iface >/dev/null 2>&1
+                        r=1
+                fi
+                # atleast one interface needs to be started for action
+                # to be success
+                eend $r && ret=0
+        done
+        eoutdent
+        return $ret
+}
+
+stop() {
+        local iface=
+        ebegin "Stopping networking"
+        eindent
+        for iface in $(find_running_ifaces); do
+                ebegin "$iface"
+                ifdown -f $iface >/dev/null
+                eend $?
+        done
+        eoutdent
+        return 0
 }