From 4e14900fe25c53275c7d7d0c094ddf1fd477e5ed Mon Sep 17 00:00:00 2001

From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>

Date: Fri, 11 Mar 2016 17:06:17 -0500

Subject: [PATCH 1/2] resolved: create /etc/resolv.conf symlink at runtime

If the symlink doesn't exists, and we are being started, let's

create it to provie name resolution.

If it exists, do nothing. In particular, if it is a broken symlink,

we cannot really know if the administator configured it to point to

a location used by some service that hasn't started yet, so we

don't touch it in that case either.

https://bugzilla.redhat.com/show_bug.cgi?id=1313085

---

 src/resolve/resolved.c | 4 ++++

 tmpfiles.d/etc.conf.m4 | 3 ---

 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/resolve/resolved.c b/src/resolve/resolved.c

index 161ea03412..ea6750e949 100644

--- a/src/resolve/resolved.c

+++ b/src/resolve/resolved.c

@@ -67,6 +67,10 @@ int main(int argc, char *argv[]) {

                 goto finish;

         }

+        r = symlink("../run/systemd/resolve/resolv.conf", "/etc/resolv.conf");

+        if (r < 0 && errno != EEXIST)

+                log_warning_errno(errno, "Could not create /etc/resolv.conf symlink: %m");

+

         r = drop_privileges(uid, gid, 0);

         if (r < 0)

                 goto finish;

diff --git a/tmpfiles.d/etc.conf.m4 b/tmpfiles.d/etc.conf.m4

index ef7b9b9541..928105ea8d 100644

--- a/tmpfiles.d/etc.conf.m4

+++ b/tmpfiles.d/etc.conf.m4

@@ -13,9 +13,6 @@ L+ /etc/mtab - - - - ../proc/self/mounts

 m4_ifdef(`HAVE_SMACK_RUN_LABEL',

 t /etc/mtab - - - - security.SMACK64=_

 )m4_dnl

-m4_ifdef(`ENABLE_RESOLVED',

-L! /etc/resolv.conf - - - - ../run/systemd/resolve/resolv.conf

-)m4_dnl

 C /etc/nsswitch.conf - - - -

 m4_ifdef(`HAVE_PAM',

 C /etc/pam.d - - - -

-- 

2.7.2