File 0012-resolved-create-etc-resolv.conf-symlink-at... of Package systemd.22194

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File 0012-resolved-create-etc-resolv.conf-symlink-at-runtime.patch of Package systemd.22194

From 90d84a96aca84b39f6aabda048703dc7c0e79ef4 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 12/12] 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.m4 | 3 ---
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/resolve/resolved.c b/src/resolve/resolved.c
index 16477f28d6..3922804039 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.m4 b/tmpfiles.d/etc.conf.m4
index f82e0b82ce..66a777bdb2 100644
--- a/tmpfiles.d/etc.conf.m4
+++ b/tmpfiles.d/etc.conf.m4
@@ -12,9 +12,6 @@ L+ /etc/mtab - - - - ../proc/self/mounts
 m4_ifdef(`HAVE_SMACK_RUN_LABEL',
 t /etc/mtab - - - - security.SMACK64=_
 )m4_dnl
-m4_ifdef(`ENABLE_RESOLVE',
-L! /etc/resolv.conf - - - - ../run/systemd/resolve/stub-resolv.conf
-)m4_dnl
 C! /etc/nsswitch.conf - - - -
 m4_ifdef(`HAVE_PAM',
 C! /etc/pam.d - - - -
-- 
2.26.2

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