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Commit Graph

21 Commits

Author SHA1 Message Date
Lennart Poettering
bbc0c09448 network: allow LLDP packets to cross non-customer bridges for container network interfaces
This changes the default .network files we ship for nspawn containers to set
EmitLLDP=customer-bridge in order to allow propagation of the LLDP packets
across bridges. This is useful so that "networkctl status" shows all peers
connected to a virtual container network, collecting this data via LLDP. This
is safe since the default configuration for these interfaces does not bridge
these links to external interfaces, but relies on IP routing for this.
2016-05-09 15:45:31 +02:00
Lennart Poettering
3af18d8eab network: add automatic configuration for the networks created by nspawn --network-zone=
This way, they "just work", similar to --network-veth behaves, as long as
networkd is enabled and running on all involved nodes.
2016-05-09 15:45:31 +02:00
Lennart Poettering
2a5a6e05ca network: turn on LLDP tx+rx for the default container network configuration
Containers are relatively trusted and the veth tunnels are small networks,
hence let's turn on LLDP both ways for them.
2016-02-21 20:58:59 +01:00
Lennart Poettering
539f2a7381 networkd: emit DNS/NTP/Timezone info via DHCP server by default
If we have the data, emit it by default.
2015-08-27 16:47:26 +02:00
Lennart Poettering
e26b50585b network: turn on DHCP timezone passing between container and host
Let's turn on DHCP timezone passing from the host to a container, so
that the timezone is always in sync.
2015-08-26 20:45:29 +02:00
David Herrmann
0737984f69 network: fix 'LinkLocal' -> 'LinkLocalAddressing' in network files
'LinkLocal' was renamed to 'LinkLocalAddressing' in:

    commit 56fd6bf795
    Author: Tom Gundersen <teg@jklm.no>
    Date:   Sat Feb 14 00:32:26 2015 +0100

        networkd: .network - rename LinkLocal to LinkLocalAddressing

..but apparently the network files were not updated. Fix this.
2015-02-14 15:31:26 +01:00
Tom Gundersen
d0d6a4cd70 networkd: generalize IPv4LL to LinkLocal
This allows both IPv4 and IPv6 link-local addresses to be enabled or disabled. By default
we still enable IPv6LL and disable IPv4LL. The old config option is kept for backwards
compatibility, but removed from the documentation.
2015-02-09 12:20:10 +01:00
Lennart Poettering
db9fd84944 network: IPMasquerade= implies IPForward=, hence remove it 2015-01-13 20:17:07 +01:00
Lennart Poettering
cb9fc36a12 networkd: introduce an AddressFamilyBoolean enum type
This introduces am AddressFamilyBoolean type that works more or less
like a booleaan, but can optionally turn on/off things for ipv4 and ipv6
independently. THis also ports the DHCP field over to it.
2015-01-13 20:17:06 +01:00
Tom Gundersen
2f6379a9ac doc: network - add comment about default prefix size
Should hopefully make it clear that this is not some magic value, just the default we picked.

Suggested by Jan Engelhardt.
2015-01-13 18:23:59 +01:00
Lennart Poettering
5a8bcb674f networkd: add minimal IP forwarding and masquerading support to .network files
This adds two new settings to networkd's .network files:
IPForwarding=yes and IPMasquerade=yes. The former controls the
"forwarding" sysctl setting of the interface, thus controlling whether
IP forwarding shall be enabled on the specific interface. The latter
controls whether a firewall rule shall be installed that exposes traffic
coming from the interface as coming from the local host to all other
interfaces.

This also enables both options by default for container network
interfaces, thus making "systemd-nspawn --network-veth" have network
connectivity out of the box.
2015-01-13 13:55:15 +01:00
Tom Gundersen
04b67d4925 udev: link_setup - respect kernel name assign policy
Newer kernels export meta-information about the origin of an ifname. Respect this
from the ifname rename logic. We do not rename any interfaces that was originally
named by userspace, nor once which have already been renamed from userspace.

Moreover, we optionally do not (the default) rename interfaces which the kernel
claims to have named in a predictable way.
2014-08-08 13:30:15 +02:00
Tom Gundersen
ed942a9eb2 networkd: merge DHCPv4 and DHCPv6 config
If there are v4 or v6 specific options we can keep those in separate sections,
but for the common options, we will use only one.

Moreovere only use DHCP=[yes/both|no/none|v4|v6] to enable or disable the clients.
2014-06-29 15:18:21 +02:00
Lennart Poettering
1a524ed4ad build-sys: add missing Makefile symlink 2014-06-19 17:13:44 +02:00
Lennart Poettering
5a0e3f28ad net: enable dhcp6 for containers 2014-06-19 17:09:05 +02:00
Lennart Poettering
7826397d92 network: automatically assign each container veth link a /28 IP address range 2014-06-18 18:28:29 +02:00
Lennart Poettering
4eaea66423 network: always take possession of host side of nspawn veth tunnels and do IPv4LL on them 2014-05-18 20:52:49 +09:00
Tom Gundersen
60a0d61e7d network: default to IPv4LL on host0
Now that we have a graceful handover from IPv4LL to DHCP, there is no longer any reason to leave this off by default.
2014-04-03 19:09:22 +02:00
Tom Gundersen
dd4d2c1cd1 networkd/nspawn: enable dhcp client on veth device created in guest
When starting systemd-nspawn with --network-veth, we create a veth device called
host0 in the guest. Pick up on this and start a dhcp client on it. We will also
pick up host0 netdevs created by other containers should they chose to use the
same name.
2014-02-22 18:29:43 +01:00
Tom Gundersen
e51660ae56 udev: net-config - allow interface names to be set from the hwdb 2014-02-19 23:29:51 +01:00
Tom Gundersen
9dc670ea76 network: move configuration to /etc/systemd/network
This is private configuraiton, so let's not pollute the namespace (and hence make Debian happy :) ).
2013-10-29 14:17:57 +01:00