This series fixes routed networks when a newer firewalld (>= 1.0.0) is
present [1]. Firewalld 1.0.0 included a change that disallows implicit
forwarding between zones [2]. libvirt was relying on this behavior to
allow routed networks to function.
Firewalld policies are added. Policies have been supported since
firewalld 0.9.0. If the running firewall does not support policies, then
it will fallback to the current zone only behavior.
My goal is to get libvirt to a fully native firewalld backend; no
iptables rules. This series is phase 1 of that effort. The next steps
are:
1. introduce a "libvirt-nat" zone and policies
- the current "libvirt" zone will become obsolete
2. go full native firewalld, do not use iptables directly
- currently a hybrid of iptables + firewalld is used
v3:
- rebase, retest, resend
v2:
- keep existing libvirt zone as is
- remove "<forward />" in libvirt-routed zone because this feature
requires firewalld >= 0.9.0. Has no impact since the added policies
allow forwarding libvirt-routed <--> ANY zone (including itself).
- add probe for policies: virFirewallDGetPolicies(),
virFirewallDPolicyExists()
[1]: https://bugzilla.redhat.com/show_bug.cgi?id=2055706
[2]: https://github.com/firewalld/firewalld/issues/177
Eric Garver (5):
util: add virFirewallDGetPolicies()
util: add virFirewallDPolicyExists()
network: firewalld: add zone for routed networks
network: firewalld: add policies for routed networks
network: firewalld: add support for routed networks
src/libvirt_private.syms | 2 +
src/network/bridge_driver_linux.c | 11 +++-
src/network/libvirt-routed-in.policy | 11 ++++
src/network/libvirt-routed-out.policy | 12 +++++
src/network/libvirt-routed.zone | 10 ++++
src/network/libvirt-to-host.policy | 20 ++++++++
src/network/meson.build | 20 ++++++++
src/util/virfirewalld.c | 72 +++++++++++++++++++++++++++
src/util/virfirewalld.h | 2 +
9 files changed, 159 insertions(+), 1 deletion(-)
create mode 100644 src/network/libvirt-routed-in.policy
create mode 100644 src/network/libvirt-routed-out.policy
create mode 100644 src/network/libvirt-routed.zone
create mode 100644 src/network/libvirt-to-host.policy
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2.35.3
