|
 |
1eeb98d |
From b727694500d24d19ac0d7c51c1eb67c281f2f301 Mon Sep 17 00:00:00 2001
|
|
|
6428127 |
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
|
|
|
6428127 |
Date: Fri, 11 Mar 2016 17:06:17 -0500
|
|
|
6153dd9 |
Subject: [PATCH] resolved: create /etc/resolv.conf symlink at runtime
|
|
|
6428127 |
|
|
|
6428127 |
If the symlink doesn't exists, and we are being started, let's
|
|
|
6428127 |
create it to provie name resolution.
|
|
|
6428127 |
|
|
|
6428127 |
If it exists, do nothing. In particular, if it is a broken symlink,
|
|
|
6428127 |
we cannot really know if the administator configured it to point to
|
|
|
6428127 |
a location used by some service that hasn't started yet, so we
|
|
|
6428127 |
don't touch it in that case either.
|
|
|
6428127 |
|
|
|
6428127 |
https://bugzilla.redhat.com/show_bug.cgi?id=1313085
|
|
|
6428127 |
---
|
|
|
6428127 |
src/resolve/resolved.c | 4 ++++
|
|
|
6428127 |
tmpfiles.d/etc.conf.m4 | 3 ---
|
|
|
6428127 |
2 files changed, 4 insertions(+), 3 deletions(-)
|
|
|
6428127 |
|
|
|
6428127 |
diff --git a/src/resolve/resolved.c b/src/resolve/resolved.c
|
|
|
1eeb98d |
index a4cda0b5ef..68bca80777 100644
|
|
|
6428127 |
--- a/src/resolve/resolved.c
|
|
|
6428127 |
+++ b/src/resolve/resolved.c
|
|
|
1eeb98d |
@@ -71,6 +71,10 @@ int main(int argc, char *argv[]) {
|
|
|
3cb1145 |
/* Drop privileges, but only if we have been started as root. If we are not running as root we assume all
|
|
|
3cb1145 |
* privileges are already dropped. */
|
|
|
3cb1145 |
if (getuid() == 0) {
|
|
|
3cb1145 |
+ r = symlink("../run/systemd/resolve/resolv.conf", "/etc/resolv.conf");
|
|
|
3cb1145 |
+ if (r < 0 && errno != EEXIST)
|
|
|
3cb1145 |
+ log_warning_errno(errno,
|
|
|
3cb1145 |
+ "Could not create /etc/resolv.conf symlink: %m");
|
|
|
6428127 |
|
|
|
3cb1145 |
/* Drop privileges, but keep three caps. Note that we drop those too, later on (see below) */
|
|
|
3cb1145 |
r = drop_privileges(uid, gid,
|
|
|
6428127 |
diff --git a/tmpfiles.d/etc.conf.m4 b/tmpfiles.d/etc.conf.m4
|
|
|
1eeb98d |
index df8d42101c..928105ea8d 100644
|
|
|
6428127 |
--- a/tmpfiles.d/etc.conf.m4
|
|
|
6428127 |
+++ b/tmpfiles.d/etc.conf.m4
|
|
|
6428127 |
@@ -13,9 +13,6 @@ L+ /etc/mtab - - - - ../proc/self/mounts
|
|
|
6428127 |
m4_ifdef(`HAVE_SMACK_RUN_LABEL',
|
|
|
6428127 |
t /etc/mtab - - - - security.SMACK64=_
|
|
|
6428127 |
)m4_dnl
|
|
|
3cb1145 |
-m4_ifdef(`ENABLE_RESOLVE',
|
|
|
1eeb98d |
-L! /etc/resolv.conf - - - - ../run/systemd/resolve/stub-resolv.conf
|
|
|
6428127 |
-)m4_dnl
|
|
|
6428127 |
C /etc/nsswitch.conf - - - -
|
|
|
6428127 |
m4_ifdef(`HAVE_PAM',
|
|
|
6428127 |
C /etc/pam.d - - - -
|