systemd-networkd silently fails to set vxlan multicast group

[Martin Sofaru]

[impact]

setting VXLAN.Group does not correctly configure multicast group

[test case]

taken from upstream bug, example networkd config:

[NetDev]
Kind=vxlan
Name=myvx

[VXLAN]
VNI=1
Group=ff02::42:1
DestinationPort=8472

After restarting systemd-networkd the VXLAN device is created, but the group address is not assigned. Use ip -d link show myvx and networkctl show myvx to verify.

[regression potential]

any regression would likely cause problems only with VXLAN netdevs created by networkd.

[scope]

this is needed only for f.

this was introduced by upstream commit 83cb24ac20b which was first in v243, so this bug does not exist in b and earlier.

this was fixed by upstream commit 7c9b26900cc33daf080627daf5904de74c1ef267 (and two following commits) which were first included in v246, so this is already fixed in g and later.

[original description]

Fixed upstream, please include [1].

Thank you.

[1] https://github.com/systemd/systemd/pull/15397

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: systemd 245.4-4ubuntu3.3
ProcVersionSignature: Ubuntu 5.4.0-52.57-generic 5.4.65
Uname: Linux 5.4.0-52-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.11
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Nov 6 14:16:19 2020
MachineType: QEMU Standard PC (Q35 + ICH9, 2009)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=C.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-52-generic root=UUID=97786d27-c04a-4592-a087-f19a689468a9 ro console=tty1 console=ttyS0
SourcePackage: systemd
UpgradeStatus: Upgraded to focal on 2020-08-27 (70 days ago)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: rel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-q35-5.1
dmi.modalias: dmi:bvnSeaBIOS:bvrrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org:bd04/01/2014:svnQEMU:pnStandardPC(Q35+ICH9,2009):pvrpc-q35-5.1:cvnQEMU:ct1:cvrpc-q35-5.1:
dmi.product.name: Standard PC (Q35 + ICH9, 2009)
dmi.product.version: pc-q35-5.1
dmi.sys.vendor: QEMU

[Chris Halse Rogers (raof)]

Hello Martin, or anyone else affected,

Accepted systemd into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/systemd/245.4-4ubuntu3.4 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-focal. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

[Ubuntu SRU Bot (ubuntu-sru-bot)]

All autopkgtests for the newly accepted systemd (245.4-4ubuntu3.4) for focal have finished running.
The following regressions have been reported in tests triggered by the package:

linux-hwe-5.8/5.8.0-37.42~20.04.1 (arm64)
netplan.io/0.100-0ubuntu4~20.04.3 (amd64)
apt/2.0.2ubuntu0.2 (armhf)
munin/2.0.56-1ubuntu1 (ppc64el)
gvfs/1.44.1-1ubuntu1 (amd64, arm64)
prometheus-alertmanager/0.15.3+ds-3ubuntu1 (armhf)
lxc/1:4.0.2-0ubuntu1 (amd64)
indicator-session/17.3.20+19.10.20190921-0ubuntu1 (ppc64el)
pyudev/0.21.0-3ubuntu1 (s390x)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/focal/update_excuses.html#systemd

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

[Martin Sofaru (msofaru)]

Hello Chris,

i can confirm, that after installing packages:
libnss-systemd_245.4-4ubuntu3.4_amd64.deb
libsystemd0_245.4-4ubuntu3.4_amd64.deb
systemd-sysv_245.4-4ubuntu3.4_amd64.deb
systemd_245.4-4ubuntu3.4_amd64.deb
libpam-systemd_245.4-4ubuntu3.4_amd64.deb
libudev1_245.4-4ubuntu3.4_amd64.deb
systemd-timesyncd_245.4-4ubuntu3.4_amd64.deb
udev_245.4-4ubuntu3.4_amd64.deb

the mcast group is set properly for the vxlan interface.

Thank you!

Martin

[Launchpad Janitor (janitor)]

This bug was fixed in the package systemd - 245.4-4ubuntu3.4

---------------
systemd (245.4-4ubuntu3.4) focal; urgency=medium

  * d/p/lp1905245/0001-basic-cap-list-parse-print-numerical-capabilities.patch,
    d/p/lp1905245/0002-basic-capability-util-let-cap_last_cap-return-unsign.patch,
    d/p/lp1905245/0003-basic-cap-list-reduce-scope-of-variables.patch:
    - print number of unknown capabilities instead of failing
      (LP: #1905245)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=5cd98102e16a6e4acc1444b10db3308d87930933
  * d/p/lp1890448-hwdb-Add-EliteBook-to-use-micmute-hotkey.patch:
    Add EliteBook to use micmute hotkey (LP: #1890448)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=238c8c1a7b9d75f69bdeafb1d55f1faf00acb063
  * d/extra/dhclient-enter-resolved-hook:
    suppress output of cmp command in dhclient hook (LP: #1878955)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=83df4fc182f8ffe87256f5d7c4b49cee5192529a
  * d/p/lp1905044-test-use-cap_last_cap-for-max-supported-cap-number-n.patch:
    test: use cap_last_cap() instead of capability_list_length()
    (LP: #1905044)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=ff21f41e624d9e603f3be463846ce981a433842a
  * d/p/lp1903300/0001-network-VXLan-fix-adding-Group-address.patch,
    d/p/lp1903300/0002-network-VXLan-Add-support-for-remote-address.patch,
    d/p/lp1903300/0003-networkctl-Add-support-to-display-VXLan-remote-addre.patch:
    set vxlan multicast group when specified (LP: #1903300)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=9deff4b7c5495dbe738561ca47daf3756df9fcde
  * d/p/lp1907306/0001-sd-dhcp-client-don-t-log-timeouts-if-already-expired.patch,
    d/p/lp1907306/0002-sd-dhcp-client-track-dhcp4-t1-t2-expire-times.patch,
    d/p/lp1907306/0003-sd-dhcp-client-add-RFC2131-retransmission-details.patch,
    d/p/lp1907306/0004-sd-dhcp-client-simplify-dhcp4-t1-t2-parsing.patch,
    d/p/lp1907306/0005-sd-dhcp-client-correct-dhcpv4-renew-rebind-retransmi.patch,
    d/p/lp1907306/0006-sd-dhcp-client-correct-retransmission-timeout-to-mat.patch,
    d/p/lp1907306/0007-test-network-increase-wait_online-timeout-to-handle-.patch,
    d/p/lp1907306/0008-sd-dhcp-client-fix-renew-rebind-timeout-calculation-.patch:
    Send correct number of dhcpv4 renew and rebind requests
    (LP: #1907306)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=a73c51d0df284dcc38e6924d40eed810554bab2e
  * d/p/lp1902960-udev-re-assign-ID_NET_DRIVER-ID_NET_LINK_FILE-ID_NET.patch:
    Run net_setup_link on 'change' uevents (LP: #1902960)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=ec7ba2358aa68d8d6276ed56ef91caafc287cecf
  * d/t/root-unittests:
    Remove any corrupt journal files (LP: #1881947)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=5481fececdb3cb35ca7118598cad537681b5ff14

 -- Dan Streetman <email address hidden> Wed, 06 Jan 2021 15:47:39 -0500

[Łukasz Zemczak (sil2100)]

The verification of the Stable Release Update for systemd has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.