From: Daniel Golle <daniel@makrotopia.org>
Date: Wed, 13 Apr 2022 15:51:58 +0000 (+0100)
Subject: netifd: relax check in dhcp proto handler
X-Git-Tag: v22.03.0-rc1~37
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=7ea412ef5a2871bb42136f914206e15b8cae04e1;p=openwrt%2Fstaging%2Fhauke.git

netifd: relax check in dhcp proto handler

Checking whether /sbin/udhcpc is a symbolic link breaks using the
DHCP proto handler inside procd-ujail where bind-mounts are used for
the resolved link. Check whether /sbin/udhcpc is executable instead
to allow using the proto handler for DHCP-provisioned containers.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit c5f113c43f43c20555298c8500bf91bffbe1f58b)
---

diff --git a/package/network/config/netifd/files/lib/netifd/proto/dhcp.sh b/package/network/config/netifd/files/lib/netifd/proto/dhcp.sh
index 3034b2ba68..ea6d872eb4 100755
--- a/package/network/config/netifd/files/lib/netifd/proto/dhcp.sh
+++ b/package/network/config/netifd/files/lib/netifd/proto/dhcp.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-[ -L /sbin/udhcpc ] || exit 0
+[ -x /sbin/udhcpc ] || exit 0
 
 . /lib/functions.sh
 . ../netifd-proto.sh