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Commit Graph

10 Commits

Author SHA1 Message Date
Tom Gundersen
5a3f198964 networkd: veth - fix memleak 2014-06-17 23:21:31 +02:00
Tom Gundersen
bddfc8afd3 networkd: drop CAP_SYS_MODULE
Rely on modules being built-in or autoloaded on-demand.

As networkd is a network facing service, we want to limits its capabilities,
as much as possible. Also, we may not have CAP_SYS_MODULE in a container,
and we want networkd to work the same there.

Module autoloading does not always work, but should be fixed by the kernel
patch f98f89a0104454f35a: 'net: tunnels - enable module autoloading', which
is currently in net-next and which people may consider backporting if they
want tunneling support without compiling in the modules.

Early adopters may also use a module-load.d snippet and order
systemd-modules-load.service before networkd to force the module
loading of tunneling modules.

This sholud fix the various build issues people have reported.
2014-06-03 00:40:23 +02:00
Tom Gundersen
09bee74d7a sd-dhcp-lease: move in_addr (de)serialization to shared network code 2014-05-19 18:14:56 +02:00
Tom Gundersen
0b44d8c3d7 networkd: manager - don't leak kmod context
Also, keep the kmod_new internal to networkd-manager.c
2014-05-12 17:37:58 +02:00
Susant Sahani
7951dea209 networkd: introduce ipip tunnel
This patch enables basic ipip tunnel support.
It works with kernel module ipip

example conf:

file: ipip.netdev

[NetDev]
Name=ipip-tun
Kind=ipip
MTUBytes=1480

[Tunnel]
Local=192.168.223.238
Remote=192.169.224.239
TTL=64

file: ipip.network

[Match]
Name=em1

[Network]
Tunnel=ipip-tun

[tomegun:
         - drop unused variable
         - take ref when enslaving]
2014-05-12 17:37:12 +02:00
Tom Gundersen
deb2e5230b sd-network: expose both admin and operational state directly
Also add a call to check if a link is loopback, as this should commonly be ignored.
2014-05-07 16:54:02 +02:00
Tom Gundersen
3a67e927e3 networkd-wait-online: improve interoptability and enable by default
To make sure we don't delay boot on systems where (some) network links are managed by someone else
we don't block if something else has successfully brought up a link.

We will still block until all links we are aware of that are  managed by networkd have been
configured, but if no such links exist, and someone else have configured a link sufficiently
that it has a carrier, it may be that the link is ready so we should no longer block.

Note that in all likelyhood the link is not ready (no addresses/routes configured),
so whatever network managment daemon configured it should provide a similar wait-online
service to block network-online.target until it is ready.

The aim is to block as long as we know networking is not fully configured, but no longer. This
will allow systemd-networkd-wait-online.service to be enabled on any system, even if we don't
know whether networkd is the main/only network manager.

Even in the case networking is fully configured by networkd, the default behavior may not be
sufficient: if two links need to be configured, but the first is fully configured before the
second one appears we will assume the network is up. To work around that, we allow specifying
specific devices to wait for before considering the network up.

This unit is enabled by default, just like systemd-networkd, but will only be pulled in if
anyone pulls in network-online.target.
2014-04-24 00:23:07 +02:00
Tom Gundersen
505f8da732 networkd: tie links to rtnl rather than udev
This essentially swaps the roles of rtnl and udev in networkd. After this
change libudev is only used for waiting for udev to initialize devices and
to get udev-specific information needed for some [Match] attributes.

This in particular simplifies the code in containers where udev is not really
useful, but also simplifies things and reduces round-trips in the non-container
case.
2014-04-19 18:41:58 +02:00
Thomas Hindoe Paaboel Andersen
9f2a50a300 silence warnings 2014-03-27 20:16:49 +01:00
Tom Gundersen
c6f7c917a1 libsystemd-network: move network-utils from src/shared
This does not belong in shared as it is mostly a detail of our networking subsystem.

Moreover, now we can use libudev here, which will simplify things.
2014-03-21 21:54:37 +01:00