On 11/07/2016 04:15 AM, Daniel P. Berrange wrote:
On Mon, Nov 07, 2016 at 01:52:05AM -0500, Laine Stump wrote:
On 11/06/2016 01:54 AM, Roman Bogorodskiy wrote:
Daniel P. Berrange wrote:
On Tue, Nov 01, 2016 at 06:15:59PM +0300, Pavel Timofeev wrote:
On BSD family OSes (Free/Net/Open/DragonFlyBSD, Mac OS) and
Solaris loopback interface is called 'lo0' instead of just 'lo'.
---
src/network/bridge_driver.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
index a3ee3f3..9d94d65 100644
--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
@@ -1002,7 +1002,12 @@ networkDnsmasqConfContents(virNetworkObjPtr network,
virBufferAsprintf(&configbuf, "pid-file=%s\n", pidfile);
/* dnsmasq will *always* listen on localhost unless told otherwise */
+#ifdef __linux__
virBufferAddLit(&configbuf, "except-interface=lo\n");
+#else
+ /* BSD family OSes and Solaris call loopback interface as lo0 */
+ virBufferAddLit(&configbuf, "except-interface=lo0\n");
+#endif
if (dnsmasqCapsGet(caps, DNSMASQ_CAPS_BIND_DYNAMIC)) {
/* using --bind-dynamic with only --interface (no
ACK will push shortly.
This breaks all the networkxml2conftest tests, for example:
$ VIR_TEST_DEBUG=1 VIR_TEST_RANGE=1 ./tests/networkxml2conftest
TEST: networkxml2conftest
1) Network XML-2-Conf isolated-network ...
In '/home/novel/code/libvirt/tests/networkxml2confdata/isolated-network.conf':
Offset 303
Expect [
]
Actual [0
]
$
On IRC the other day Roman mentioned the idea of just replacing "lo" with
"lo*" on all platforms. I checked the dnsmasq documentation and this simple
wildcarding is supported for the except-interface option, so I tried out
such a patch on my system and it seems to work properly. Maybe we should do
that instead of having yet another chunk of #ifdef __linux__ code (the test
case datafiles will still need to be changed, but at least they'll be
identical for all platforms).
Any idea how far back wildcards work. If they still work on the RHEL-6
vintage dnsmasq, then I'd agree with you and it'll make the test case
fix easier to avoid the conditional.
Time for the "Monday Sigh". Sigh.
I looked this up in dnsmasq's git repo, and it seems recognition of
wildcards in interface names was added in
commit 49333cbdbef3bf86198b31a42bffad002de305d5
Author: Simon Kelley <simon@xxxxxxxxxxxxxxxxx>
Date: Fri Mar 15 20:30:51 2013 +0000
Allow trailing '*' wildcard in interface names.
That commit was first in dnsmasq 2.66, but RHEL6 is using dnsmasq 2.48.
The strange thing is that I tried running dnsmasq on RHEL6 with
"--except-interface=lo*" and was able to run multiple instances. I guess
my test was flawed. (NetworkManager doesn't support use of dnsmasq for
DNS services, as Cole suggested as a test in:
https://bugzilla.redhat.com/show_bug.cgi?id=886663#c2
But the source doesn't lie.)
So I guess we need to parameterize the tests somehow (this seems
familiar, but I can't remember why).
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