[libvirt] [PATCH] network: write both lo and lo0 in dnsmasq configuration
When generating a new configuration for dnsmasq, add except-interface for both lo and lo0: this should make sure the configuration works, and is always the same for every supported OS. Adjust the data of networkxml2conftest to reflect the new dnsmasq configuration, making networkxml2conftest pass on non-Linux OSes. Followup of commit 478ddedc12b77313cbaf72328ab2236ce7c56ead. --- src/network/bridge_driver.c | 9 ++++----- tests/networkxml2confdata/dhcp6-nat-network.conf | 1 + tests/networkxml2confdata/dhcp6-network.conf | 1 + tests/networkxml2confdata/dhcp6host-routed-network.conf | 1 + tests/networkxml2confdata/isolated-network.conf | 1 + tests/networkxml2confdata/nat-network-dns-forward-plain.conf | 1 + tests/networkxml2confdata/nat-network-dns-forwarders.conf | 1 + tests/networkxml2confdata/nat-network-dns-hosts.conf | 1 + tests/networkxml2confdata/nat-network-dns-local-domain.conf | 1 + .../networkxml2confdata/nat-network-dns-srv-record-minimal.conf | 1 + tests/networkxml2confdata/nat-network-dns-srv-record.conf | 1 + tests/networkxml2confdata/nat-network-dns-txt-record.conf | 1 + tests/networkxml2confdata/nat-network-name-with-quotes.conf | 1 + tests/networkxml2confdata/nat-network.conf | 1 + tests/networkxml2confdata/netboot-network.conf | 1 + tests/networkxml2confdata/netboot-proxy-network.conf | 1 + tests/networkxml2confdata/open-network.conf | 1 + tests/networkxml2confdata/routed-network-no-dns.conf | 1 + tests/networkxml2confdata/routed-network.conf | 1 + 19 files changed, 22 insertions(+), 5 deletions(-) diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index 9d94d65..feea35b 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -1001,13 +1001,12 @@ networkDnsmasqConfContents(virNetworkObjPtr network, if (pidfile) virBufferAsprintf(&configbuf, "pid-file=%s\n", pidfile); - /* dnsmasq will *always* listen on localhost unless told otherwise */ -#ifdef __linux__ + /* dnsmasq will *always* listen on localhost unless told otherwise: + * - "lo" is the loopback interface on Linux + * - "lo0" is the loopback interface on BSD and Solaris + */ 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 diff --git a/tests/networkxml2confdata/dhcp6-nat-network.conf b/tests/networkxml2confdata/dhcp6-nat-network.conf index d1058df..a5d69b5 100644 --- a/tests/networkxml2confdata/dhcp6-nat-network.conf +++ b/tests/networkxml2confdata/dhcp6-nat-network.conf @@ -6,6 +6,7 @@ ## dnsmasq conf file created by libvirt strict-order except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr0 dhcp-range=192.168.122.2,192.168.122.254 diff --git a/tests/networkxml2confdata/dhcp6-network.conf b/tests/networkxml2confdata/dhcp6-network.conf index 8270690..f58a088 100644 --- a/tests/networkxml2confdata/dhcp6-network.conf +++ b/tests/networkxml2confdata/dhcp6-network.conf @@ -8,6 +8,7 @@ strict-order domain=mynet expand-hosts except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr0 dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64 diff --git a/tests/networkxml2confdata/dhcp6host-routed-network.conf b/tests/networkxml2confdata/dhcp6host-routed-network.conf index 87a1498..03ea9a6 100644 --- a/tests/networkxml2confdata/dhcp6host-routed-network.conf +++ b/tests/networkxml2confdata/dhcp6host-routed-network.conf @@ -6,6 +6,7 @@ ## dnsmasq conf file created by libvirt strict-order except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr1 dhcp-range=192.168.122.1,static diff --git a/tests/networkxml2confdata/isolated-network.conf b/tests/networkxml2confdata/isolated-network.conf index ce4a59f..b2b7ec2 100644 --- a/tests/networkxml2confdata/isolated-network.conf +++ b/tests/networkxml2confdata/isolated-network.conf @@ -6,6 +6,7 @@ ## dnsmasq conf file created by libvirt strict-order except-interface=lo +except-interface=lo0 bind-interfaces listen-address=192.168.152.1 dhcp-option=3 diff --git a/tests/networkxml2confdata/nat-network-dns-forward-plain.conf b/tests/networkxml2confdata/nat-network-dns-forward-plain.conf index 9a000b8..6e9a27a 100644 --- a/tests/networkxml2confdata/nat-network-dns-forward-plain.conf +++ b/tests/networkxml2confdata/nat-network-dns-forward-plain.conf @@ -6,6 +6,7 @@ ## dnsmasq conf file created by libvirt strict-order except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr0 addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts diff --git a/tests/networkxml2confdata/nat-network-dns-forwarders.conf b/tests/networkxml2confdata/nat-network-dns-forwarders.conf index 0bd76bf..c3d351b 100644 --- a/tests/networkxml2confdata/nat-network-dns-forwarders.conf +++ b/tests/networkxml2confdata/nat-network-dns-forwarders.conf @@ -11,6 +11,7 @@ server=8.8.4.4 server=/example.com/192.168.1.1 server=/www.example.com/# except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr0 addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts diff --git a/tests/networkxml2confdata/nat-network-dns-hosts.conf b/tests/networkxml2confdata/nat-network-dns-hosts.conf index 021316f..16cc397 100644 --- a/tests/networkxml2confdata/nat-network-dns-hosts.conf +++ b/tests/networkxml2confdata/nat-network-dns-hosts.conf @@ -10,6 +10,7 @@ expand-hosts domain-needed local=// except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr0 addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts diff --git a/tests/networkxml2confdata/nat-network-dns-local-domain.conf b/tests/networkxml2confdata/nat-network-dns-local-domain.conf index 5f41b91..f9ffd3a 100644 --- a/tests/networkxml2confdata/nat-network-dns-local-domain.conf +++ b/tests/networkxml2confdata/nat-network-dns-local-domain.conf @@ -9,6 +9,7 @@ local=/example.com/ domain=example.com expand-hosts except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr0 addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts diff --git a/tests/networkxml2confdata/nat-network-dns-srv-record-minimal.conf b/tests/networkxml2confdata/nat-network-dns-srv-record-minimal.conf index f35ea1d..d15120d 100644 --- a/tests/networkxml2confdata/nat-network-dns-srv-record-minimal.conf +++ b/tests/networkxml2confdata/nat-network-dns-srv-record-minimal.conf @@ -6,6 +6,7 @@ ## dnsmasq conf file created by libvirt strict-order except-interface=lo +except-interface=lo0 bind-interfaces listen-address=192.168.122.1 listen-address=192.168.123.1 diff --git a/tests/networkxml2confdata/nat-network-dns-srv-record.conf b/tests/networkxml2confdata/nat-network-dns-srv-record.conf index af1ed70..07280da 100644 --- a/tests/networkxml2confdata/nat-network-dns-srv-record.conf +++ b/tests/networkxml2confdata/nat-network-dns-srv-record.conf @@ -6,6 +6,7 @@ ## dnsmasq conf file created by libvirt strict-order except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr0 srv-host=_name._tcp.test-domain-name.com,test.example.com,1111,11,111 diff --git a/tests/networkxml2confdata/nat-network-dns-txt-record.conf b/tests/networkxml2confdata/nat-network-dns-txt-record.conf index 7f560fb..ddc51be 100644 --- a/tests/networkxml2confdata/nat-network-dns-txt-record.conf +++ b/tests/networkxml2confdata/nat-network-dns-txt-record.conf @@ -6,6 +6,7 @@ ## dnsmasq conf file created by libvirt strict-order except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr0 txt-record=example,example value diff --git a/tests/networkxml2confdata/nat-network-name-with-quotes.conf b/tests/networkxml2confdata/nat-network-name-with-quotes.conf index 36e11d1..fb2668c 100644 --- a/tests/networkxml2confdata/nat-network-name-with-quotes.conf +++ b/tests/networkxml2confdata/nat-network-name-with-quotes.conf @@ -6,6 +6,7 @@ ## dnsmasq conf file created by libvirt strict-order except-interface=lo +except-interface=lo0 bind-interfaces listen-address=192.168.122.1 listen-address=192.168.123.1 diff --git a/tests/networkxml2confdata/nat-network.conf b/tests/networkxml2confdata/nat-network.conf index a3c8b10..cf49e27 100644 --- a/tests/networkxml2confdata/nat-network.conf +++ b/tests/networkxml2confdata/nat-network.conf @@ -6,6 +6,7 @@ ## dnsmasq conf file created by libvirt strict-order except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr0 dhcp-range=192.168.122.2,192.168.122.254 diff --git a/tests/networkxml2confdata/netboot-network.conf b/tests/networkxml2confdata/netboot-network.conf index b554a54..cd8c7e9 100644 --- a/tests/networkxml2confdata/netboot-network.conf +++ b/tests/networkxml2confdata/netboot-network.conf @@ -8,6 +8,7 @@ strict-order domain=example.com expand-hosts except-interface=lo +except-interface=lo0 bind-interfaces listen-address=192.168.122.1 dhcp-range=192.168.122.2,192.168.122.254 diff --git a/tests/networkxml2confdata/netboot-proxy-network.conf b/tests/networkxml2confdata/netboot-proxy-network.conf index afb4033..e91edb8 100644 --- a/tests/networkxml2confdata/netboot-proxy-network.conf +++ b/tests/networkxml2confdata/netboot-proxy-network.conf @@ -8,6 +8,7 @@ strict-order domain=example.com expand-hosts except-interface=lo +except-interface=lo0 bind-interfaces listen-address=192.168.122.1 dhcp-range=192.168.122.2,192.168.122.254 diff --git a/tests/networkxml2confdata/open-network.conf b/tests/networkxml2confdata/open-network.conf index ff09984..acf9440 100644 --- a/tests/networkxml2confdata/open-network.conf +++ b/tests/networkxml2confdata/open-network.conf @@ -6,6 +6,7 @@ ## dnsmasq conf file created by libvirt strict-order except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr1 addn-hosts=/var/lib/libvirt/dnsmasq/open.addnhosts diff --git a/tests/networkxml2confdata/routed-network-no-dns.conf b/tests/networkxml2confdata/routed-network-no-dns.conf index 83cc85e..ab687fa 100644 --- a/tests/networkxml2confdata/routed-network-no-dns.conf +++ b/tests/networkxml2confdata/routed-network-no-dns.conf @@ -7,5 +7,6 @@ strict-order port=0 except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr1 diff --git a/tests/networkxml2confdata/routed-network.conf b/tests/networkxml2confdata/routed-network.conf index 970aa3c..ba0353c 100644 --- a/tests/networkxml2confdata/routed-network.conf +++ b/tests/networkxml2confdata/routed-network.conf @@ -6,6 +6,7 @@ ## dnsmasq conf file created by libvirt strict-order except-interface=lo +except-interface=lo0 bind-dynamic interface=virbr1 addn-hosts=/var/lib/libvirt/dnsmasq/local.addnhosts -- 2.7.4
Pino Toscano wrote:
When generating a new configuration for dnsmasq, add except-interface for both lo and lo0: this should make sure the configuration works, and is always the same for every supported OS.
Adjust the data of networkxml2conftest to reflect the new dnsmasq configuration, making networkxml2conftest pass on non-Linux OSes.
Followup of commit 478ddedc12b77313cbaf72328ab2236ce7c56ead. --- src/network/bridge_driver.c | 9 ++++----- tests/networkxml2confdata/dhcp6-nat-network.conf | 1 + tests/networkxml2confdata/dhcp6-network.conf | 1 + tests/networkxml2confdata/dhcp6host-routed-network.conf | 1 + tests/networkxml2confdata/isolated-network.conf | 1 + tests/networkxml2confdata/nat-network-dns-forward-plain.conf | 1 + tests/networkxml2confdata/nat-network-dns-forwarders.conf | 1 + tests/networkxml2confdata/nat-network-dns-hosts.conf | 1 + tests/networkxml2confdata/nat-network-dns-local-domain.conf | 1 + .../networkxml2confdata/nat-network-dns-srv-record-minimal.conf | 1 + tests/networkxml2confdata/nat-network-dns-srv-record.conf | 1 + tests/networkxml2confdata/nat-network-dns-txt-record.conf | 1 + tests/networkxml2confdata/nat-network-name-with-quotes.conf | 1 + tests/networkxml2confdata/nat-network.conf | 1 + tests/networkxml2confdata/netboot-network.conf | 1 + tests/networkxml2confdata/netboot-proxy-network.conf | 1 + tests/networkxml2confdata/open-network.conf | 1 + tests/networkxml2confdata/routed-network-no-dns.conf | 1 + tests/networkxml2confdata/routed-network.conf | 1 + 19 files changed, 22 insertions(+), 5 deletions(-)
Thanks, this indeed makes networkxml2conftest pass on FreeBSD. Basic run-time tests doesn't reveal any issues as well (though I'm not sure that I was ever able to reproduce the issue caused adding the except-interface thing). Roman Bogorodskiy
On Thu, Dec 01, 2016 at 01:47:57PM +0100, Pino Toscano wrote:
When generating a new configuration for dnsmasq, add except-interface for both lo and lo0: this should make sure the configuration works, and is always the same for every supported OS.
Adjust the data of networkxml2conftest to reflect the new dnsmasq configuration, making networkxml2conftest pass on non-Linux OSes.
Just so I know the reasoning behind this. Is this only because of the test suite failing? Or are we trying to fix some problem with it? Can't we get the interface name programmatically and then use that value? Not that I'd be running around adding bridges with name == "lo0" in libvirt's networks, but still... It would feel cleaner.
On Tue, 2016-12-06 at 09:41 +0100, Martin Kletzander wrote:
When generating a new configuration for dnsmasq, add except-interface for both lo and lo0: this should make sure the configuration works, and is always the same for every supported OS. Adjust the data of networkxml2conftest to reflect the new dnsmasq configuration, making networkxml2conftest pass on non-Linux OSes. Just so I know the reasoning behind this. Is this only because of the test suite failing? Or are we trying to fix some problem with it? Can't we get the interface name programmatically and then use that value? Not that I'd be running around adding bridges with name == "lo0" in libvirt's networks, but still... It would feel cleaner.
I think it's just because of the test case, which by the way is still failing on FreeBSD. I've just posted an alternative approach that, while quite possibly not the cleanest out there, at least doesn't require us to bend the library code proper to the test suite needs: https://www.redhat.com/archives/libvir-list/2016-December/msg01123.html Feedback is welcome :) -- Andrea Bolognani / Red Hat / Virtualization
On Thu, Dec 22, 2016 at 08:46:55PM +0100, Andrea Bolognani wrote:
On Tue, 2016-12-06 at 09:41 +0100, Martin Kletzander wrote:
When generating a new configuration for dnsmasq, add except-interface for both lo and lo0: this should make sure the configuration works, and is always the same for every supported OS. Adjust the data of networkxml2conftest to reflect the new dnsmasq configuration, making networkxml2conftest pass on non-Linux OSes. Just so I know the reasoning behind this. Is this only because of the test suite failing? Or are we trying to fix some problem with it? Can't we get the interface name programmatically and then use that value? Not that I'd be running around adding bridges with name == "lo0" in libvirt's networks, but still... It would feel cleaner.
I think it's just because of the test case, which by the way is still failing on FreeBSD.
I've just posted an alternative approach that, while quite possibly not the cleanest out there, at least doesn't require us to bend the library code proper to the test suite needs:
https://www.redhat.com/archives/libvir-list/2016-December/msg01123.html
Me too: https://www.redhat.com/archives/libvir-list/2016-December/msg01187.html
Feedback is welcome :)
Same here.
-- Andrea Bolognani / Red Hat / Virtualization
participants (4)
-
Andrea Bolognani -
Martin Kletzander -
Pino Toscano -
Roman Bogorodskiy