With the changes from 2c0dffe82d, starting
systemd-networkd.service will also activate systemd-networkd.socket.
When tearing down a test, we need to stop the socket as well, to make
sure networkd can't be activated accidentally with the wrong
configuration.
glibc 2.26 lifted restrictions on search domains count or length to
unlimited. This has also been backported to 2.17 in some distributions (RHEL 7
and derivatives). Other softwares may have their own limits for search domains,
but we should not restrict what is written out any more.
https://sourceware.org/legacy-ml/libc-announce/2017/msg00001.html
If networkctl crashes, like recently with SIGABRT, it returns absolutely
no output, which may be confusing during debugging. Help it a little
with a short informative message.
`adduser` is in certain cases a standalone package which provides a
better user experience. In other cases it's just a symlink to `useradd`.
And some distributions don't have `adduser` at all, like Arch Linux.
Let's use the `useradd` binary instead, which should provide the same
functionality everywhere.
This test exposes a race condition when running in LXC, see issue #11848
for details. Until that is understood and fixed, skip the test as it's
not a recent regression.
This avoids a warning:
An address '192.168.42.100' is specified without prefix length. The
behavior of parsing addresses without prefix length will be changed
in the future release. Please specify prefix length explicitly.
- This test needs resolved, so make sure it is started. In some Debian
environments it is not.
- It was an unnecessary, and now failing assumption that name servers
get atomically written to the resolved's resolv.conf. Wait until both
expected name servers are in the file.
Since version 241 (commit ea4678?), querying MX type records for
single-label domains does not actually forward the query to the DNS
server any more. Use "example.com" instead, which is the recommended
test domain anyway.
dnsmasq 2.80 changed behaviour when being queried by resolved with
enabled DNSSEC: It returns errors for SOA and DS queries which cause the
entire query to fail. As we don't configure DNSSEC in this test anyway,
just disable it so that we retain compatibility with old and new dnsmasq
versions.
Previously, we'd return DNS_SCOPE_MAYBE for all domain lookups matching
LLMNR or mDNS. Let's upgrade this to DNS_SCOPE_YES, to make the binding
stronger.
The effect of this is that even if "local" is defined as routing domain
on some iface, we'll still lookup domains in local via mDNS — if mDNS is
turned on. This should not be limiting, as people who don't want such
lookups should turn off mDNS altogether, as it is useless if nothing is
routed to it.
This also has the nice benefit that mDNS/LLMR continue to work if people
use "~." as routing domain on some interface.
Similar for LLMNR and single label names.
Similar also for the link local IPv4 and IPv6 reverse lookups.
Fixes: #10125
Previously, the test would use the existing static hostname. However,
this woud not work as expected in the static hostname was "localhost"
because the transient hostname will override the static one in that case
anyway, as the assumption hostnamed makes is that "localhost" is a
non-initialized hostname.
Hence when testing this, let's first set the static hostname to
something specific first (that is not "localhost").
Otherwise networkd isn't happy.
Let's also make addition of the "systemd-network" non-fatal. The user
exists on many machines anyway, hence it shouldn't fail if it already
exists.
Mount tmpfses over the networkd and resolved config and state
directories, and stop the services beforehand. This ensures that the
test does not mess with an existing networkd/resolved setup. At least
for ethernet setups, this does not sever existing links, so is good
enough for the CI cases we are interested in (QEMU and LXC).
Relax the skip check to only skip the test when trying to run this on
real iron, but start running it in virtual machines now.
This allows us to run the test on Ubuntu 18.04 LTS in CI, which uses
both services by default.
Like s-networkd.service itself, it can happen that s-resolved.service
runs into restart limits. Don't enforce a successful call, as on
machines without resolved the unit might not be loaded.
- Reset systemd-networkd.service before each test run, to avoid running
into restart limits.
- Our networkd-test-router.service unit needs to run as root and thus
can't use `User=`; but networkd still insists on the
`systemd-network` system user to exist, so create it.
Test the "[Bridge]" section keys
```
[Bridge]
UnicastFlood=true
HairPin=true
UseBPDU=true
FastLeave=true
AllowPortToBeRoot=true
Cost=555
Priority=23
```
```
test_bridge_init (__main__.BridgeTest) ... ok
test_bridge_port_priority (__main__.BridgeTest) ... ok
test_bridge_port_priority_set_zero (__main__.BridgeTest)
It should be possible to set the bridge port priority to 0 ... ok
test_bridge_port_property (__main__.BridgeTest)
Test the "[Bridge]" section keys ... ok
```
Files which are installed as-is (any .service and other unit files, .conf
files, .policy files, etc), are left as is. My assumption is that SPDX
identifiers are not yet that well known, so it's better to retain the
extended header to avoid any doubt.
I also kept any copyright lines. We can probably remove them, but it'd nice to
obtain explicit acks from all involved authors before doing that.
Followed PEP8 and PEP3101 rules (#8079)
Imports re-ordered by Alphabetical Standarts for following PEP8
Old type string formattings (" example %s " % exampleVar ) re-writed as new type string
formattings ( " example {} ".format(exampleVar) ) for following PEP3101
In networkd-test.py, don't assert that the router state is "routable".
While it should eventually become that, we don't wait for it, and thus
at that point it often is "carrier" or "degrated" still. It is also not
really relevant as this only tests the "client" side interface.
Allow setting bridge port priority in the Bridge section of the network file,
similar to e.g. port path cost setting.
Set the default to an invalid value of 128, and only set the port priority when
it's not 128. Unlike e.g. path cost, zero is a valid priority value.
Add a networkd-test.py to check that bridge port priority is correctly set.
Incidently, fix bridge port cost type and document valid ranges.
In test_resolved_domain_restricted_dns(), add dot domain separator to
negative .lab/.company tests, so that we don't catch these as part of
the host name (like "lxc-labjfr").
Caught in PR #4962
Fix wrong condition test in manager_etc_hosts_lookup(), which caused it to
return an IPv4 answer when an IPv6 question was asked, and vice versa.
Also only return success if we actually found any A or AAAA record.
In systemd-resolved.service(8), point out that /etc/hosts mappings only
affect address-type lookups, not other types.
The test case currently disables DNSSEC in resolved, as there is a bug
where "-t MX" fails due to "DNSSEC validation failed" even after
"downgrading to non-DNSSEC mode". This should be dropped once that bug
gets fixed.
Fixes#4801
Sometimes setting the transient hostname does not happen synchronously, so
retry up to five times. It is not yet clear whether this is legitimate
behaviour or an underlying bug, but this will at least show whether the wrong
transient hostname is just a race condition or permanently wrong.
Fixes#4753
This test fails sometimes but it is hard to reproduce, so we need more
information what happens. Set journal log level to "debug" for the entirety of
networkd-test.py, and show networkd's and hostnamed's journals and the DHCP
server log on failure of the two test_transient_hostname* tests. Also sync the
journal before querying it to get more precise output.
This should help with tracking down issue #4753.
systemd-networkd runs as user "systemd-network" and thus is not privileged to
set the timezone acquired from DHCP:
systemd-networkd[4167]: test_eth42: Could not set timezone: Interactive authentication required.
Similarly to commit e8c0de912, add a polkit rule to grant
org.freedesktop.timedate1.set-timezone to the "systemd-network" system user.
Move the polkit rules from src/hostname/ to src/network/ to avoid too many
small distributed policy snippets (there might be more in the future), as it's
easier to specify the privileges for a particular subject in this case.
Add NetworkdClientTest.test_dhcp_timezone() test case to verify this (for
all people except those in Pacific/Honolulu, there the test doesn't prove
anything -- sorry ☺ ).
systemd-networkd runs as user "systemd-network" and thus is not privileged to
set the transient hostname:
systemd-networkd[516]: ens3: Could not set hostname: Interactive authentication required.
Standard polkit *.policy files do not have a syntax for granting privileges to
a user, so ship a pklocalauthority (for polkit < 106) and a JavaScript rules
file (for polkit >= 106) that grants the "systemd-network" system user that
privilege.
Add DnsmasqClientTest.test_transient_hostname() test to networkd-test.py to
cover this. Make do_test() a bit more flexible by interpreting "coldplug==None"
as "test sets up the interface by itself". Change DnsmasqClientTest to set up
test_eth42 with a fixed MAC address so that we can configure dnsmasq to send a
special host name for that.
Fixes#4646
DNS servers which have route-only domains should only be used for
the specified domains. Routing queries about other domains there is a privacy
violation, prone to fail (as that DNS server was not meant to be used for other
domains), and puts unnecessary load onto that server.
Introduce a new helper function dns_server_limited_domains() that checks if the
DNS server should only be used for some selected domains, i. e. has some
route-only domains without "~.". Use that when determining whether to query it
in the scope, and when writing resolv.conf.
Extend the test_route_only_dns() case to ensure that the DNS server limited to
~company does not appear in resolv.conf. Add test_route_only_dns_all_domains()
to ensure that a server that also has ~. does appear in resolv.conf as global
name server. These reproduce #3420.
Add a new test_resolved_domain_restricted_dns() test case that verifies that
domain-limited DNS servers are only being used for those domains. This
reproduces #3421.
Clarify what a "routing domain" is in the manpage.
Fixes#3420Fixes#3421
Zbigniew Jędrzejewski-Szmek