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From e0f2dd42fb02aa5767d38714c95ac10fb683ad67 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
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Date: Fri, 11 Mar 2016 17:06:17 -0500
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Subject: [PATCH] resolved: create /etc/resolv.conf symlink at runtime
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If the symlink doesn't exists, and we are being started, let's
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create it to provie name resolution.
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If it exists, do nothing. In particular, if it is a broken symlink,
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we cannot really know if the administator configured it to point to
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a location used by some service that hasn't started yet, so we
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don't touch it in that case either.
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https://bugzilla.redhat.com/show_bug.cgi?id=1313085
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---
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src/resolve/resolved.c | 4 ++++
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tmpfiles.d/etc.conf.m4 | 3 ---
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2 files changed, 4 insertions(+), 3 deletions(-)
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diff --git a/src/resolve/resolved.c b/src/resolve/resolved.c
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index c01e53e9d..f3d96df45 100644
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--- a/src/resolve/resolved.c
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+++ b/src/resolve/resolved.c
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@@ -53,6 +53,10 @@ int main(int argc, char *argv[]) {
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/* Drop privileges, but only if we have been started as root. If we are not running as root we assume all
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* privileges are already dropped. */
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if (getuid() == 0) {
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+ r = symlink("../run/systemd/resolve/resolv.conf", "/etc/resolv.conf");
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+ if (r < 0 && errno != EEXIST)
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+ log_warning_errno(errno,
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+ "Could not create /etc/resolv.conf symlink: %m");
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/* Drop privileges, but keep three caps. Note that we drop those too, later on (see below) */
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r = drop_privileges(uid, gid,
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diff --git a/tmpfiles.d/etc.conf.m4 b/tmpfiles.d/etc.conf.m4
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index df8d42101..928105ea8 100644
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--- a/tmpfiles.d/etc.conf.m4
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+++ b/tmpfiles.d/etc.conf.m4
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@@ -13,9 +13,6 @@ L+ /etc/mtab - - - - ../proc/self/mounts
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m4_ifdef(`HAVE_SMACK_RUN_LABEL',
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t /etc/mtab - - - - security.SMACK64=_
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)m4_dnl
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-m4_ifdef(`ENABLE_RESOLVE',
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-L! /etc/resolv.conf - - - - ../run/systemd/resolve/stub-resolv.conf
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-)m4_dnl
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C /etc/nsswitch.conf - - - -
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m4_ifdef(`HAVE_PAM',
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C /etc/pam.d - - - -
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