systemd/0012-resolved-create-etc-resolv.conf-symlink-at-runtime.patch

From 1aa6cfc7ff05929f013262c86ab7557e5394fb4c 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 11/11] 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 | 6 ++++++
 tmpfiles.d/etc.conf.in | 3 ---
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/resolve/resolved.c b/src/resolve/resolved.c
index aabaa266e9..39277ea487 100644
--- a/src/resolve/resolved.c
+++ b/src/resolve/resolved.c
@@ -53,6 +53,12 @@ static int run(int argc, char *argv[]) {
                 if (r < 0)
                         return log_error_errno(r, "Cannot resolve user name %s: %m", user);
 
+                /* As we're root, we can create /etc/resolv.conf symlink if it doesn't exist already */
+                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");
+
                 /* As we're root, we can create the directory where resolv.conf will live */
                 r = mkdir_safe_label("/run/systemd/resolve", 0755, uid, gid, MKDIR_WARN_MODE);
                 if (r < 0)
diff --git a/tmpfiles.d/etc.conf.in b/tmpfiles.d/etc.conf.in
index 2323fd8cd8..ebdc699c26 100644
--- a/tmpfiles.d/etc.conf.in
+++ b/tmpfiles.d/etc.conf.in
@@ -12,9 +12,6 @@ L+ /etc/mtab - - - - ../proc/self/mounts
 {% if HAVE_SMACK_RUN_LABEL %}
 t /etc/mtab - - - - security.SMACK64=_
 {% endif %}
-{% if ENABLE_RESOLVE %}
-L! /etc/resolv.conf - - - - ../run/systemd/resolve/stub-resolv.conf
-{% endif %}
 C! /etc/nsswitch.conf - - - -
 {% if HAVE_PAM %}
 C! /etc/pam.d - - - -
-- 
2.26.2