Re: [PATCH 3/4] network: firewalld: add policies for routed networks
On Wed, May 11, 2022 at 11:41:54AM -0400, Eric Garver wrote:
Signed-off-by: Eric Garver <eric(a)garver.life>
---
src/network/libvirt-routed-in.policy | 11 +++++++++++
src/network/libvirt-routed-out.policy | 12 ++++++++++++
src/network/meson.build | 10 ++++++++++
3 files changed, 33 insertions(+)
create mode 100644 src/network/libvirt-routed-in.policy
create mode 100644 src/network/libvirt-routed-out.policy
diff --git a/src/network/libvirt-routed-in.policy b/src/network/libvirt-routed-in.policy
new file mode 100644
index 000000000000..baf8822d747c
--- /dev/null
+++ b/src/network/libvirt-routed-in.policy
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<policy target="ACCEPT">
+ <short>libvirt-routed-out</short>
+
+ <description>
+ This policy is used to allow routed traffic to the virtual machines.
+ </description>
+
+ <ingress-zone name="ANY" />
+ <egress-zone name="libvirt-routed" />
+</policy>
Same as the NAT version of the policy so makes sense.
diff --git a/src/network/libvirt-routed-out.policy
b/src/network/libvirt-routed-out.policy
new file mode 100644
index 000000000000..efa0030569d6
--- /dev/null
+++ b/src/network/libvirt-routed-out.policy
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<policy target="ACCEPT">
+ <short>libvirt-routed-out</short>
+
+ <description>
+ This policy is used to allow routed virtual machine traffic to the rest of
+ the network.
+ </description>
+
+ <ingress-zone name="libvirt-routed" />
+ <egress-zone name="ANY" />
+</policy>
This is much more permissive than what I expected. Doesn't
this allow the VMs to have unrestricted access to anything
on the host ?
At a libvirt POV, the NAT and routed zones should be
identical, with the only difference being whether
masquerading is applied.
In terms of VM -> host, we still only want to allow the
small set of services, dns, dhcp, ssh AFAIK.
With regards,
Daniel
--
|: https://berrange.com -o- https://www.flickr.com/photos/dberrange :|
|: https://libvirt.org -o- https://fstop138.berrange.com :|
|: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|