This patch introduces TUN/TAP device creation support
to networkd.
Example conf to create a tap device:
file: tap.netdev
------------------
[NetDev]
Name=tap-test
Kind=tap
[Tap]
OneQueue=true
MultiQueue=true
PacketInfo=true
User=sus
Group=sus
------------------
Test:
1. output of ip link
tap-test: tap pi one_queue UNKNOWN_FLAGS:900 user 1000 group 1000
id:
uid=1000(sus) gid=10(wheel) groups=10(wheel),1000(sus)
context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
Modifications:
Added:
1. file networkd-tuntap.c
3. netdev kind NETDEV_KIND_TUN and NETDEV_KIND_TAP
2. Tun and Tap Sections and config params to parse
conf and gperf conf parameters
[tomegun: tweak the 'kind' checking for received ifindex]
systemctl -H root@foobar:waldi
will now show a list of services running on container "waldi" on host
"foobar", using "root" for authenticating at "foobar".
Since entereing a container requires priviliges, this will only work
correctly for root logins.
When a caller drops all references to a bus and its messages while the
messages where still queue, this causes the bus to reference the
messages, and the messages to reference the bus, without anybody else
keeping a reference, which is something we so far considered a leak, and
tried to fix with a GC logic that would recognize cases like this, and
drop the reference.
This GC logic has been broken sofar, and remained unfixed. This commit
removes it altogther, replacing it with nothing. The rationale is that
simply because all refs to the bus have been dropped its queued messages
should *still* be written to the bus, even if the caller doesn't retain
any reference to either bus nor message. This means it was actually
wrong to attempt to clean up the bus in this case.
The proper way how applications should handle this is by explicitly
invoking sd_bus_close(), when they want busses to go away. This is
probably want they want to do anyway to avoid getting spurious
callbacks after they stopped using a bus.
bus-proxyd is not only the bridge between legacy dbus clients and kdbus
but is also used to access remote dbus servers via ssh. Let's make sure
it actually works for that.
This new tool is based on "sd-path", a new (so far unexported) API for
libsystemd, that can hopefully grow into a workable API covering /opt
and more one day.
Send hostname (option 12) in DISCOVER and REQUEST messages so the
DHCP server could use it to register with dynamic DNS and such.
To opt-out of this behaviour set SendHostname to false in [DHCP]
section of .network file
[tomegun: rebased, made sure a failing set_hostname is a noop and moved
config from DHCPv4 to DHCP]
The example does not compile, it fails with:
error: passing argument 3 of ‘sd_journal_get_data’ from incompatible
pointer type
Cast to (const void **) to avoid this.
For network devices on the same PCI function, dev_id should not be used,
since its purpose is for IPv6 support on interfaces with the same MAC
address.
The new dev_port sysfs attribute should be used instead of dev_id.
We failed to take a ref when waiting for udev synchronization. Fix that and also
make unreffing in callbacks simpler throughout by using _cleanup_ macros.
Fixes <https://bugs.freedesktop.org/show_bug.cgi?id=80556>.
