March 2026 - Devel - libvirt List Archives

[PATCH 0/3] security: Don't error out on seclabels of type='none'
by Michal Privoznik 01 Apr '26

01 Apr '26

*** BLURB HERE *** Michal Prívozník (3): conf: Fix seclabel type parsing wrt default value security: Rewrite virSecurityManagerCheckModel() to use g_autofree security: Don't error out on seclabels of type='none' src/conf/domain_conf.c | 13 +++++------ src/security/security_manager.c | 41 ++++++++++++++++++++++++--------- 2 files changed, 36 insertions(+), 18 deletions(-) -- 2.52.0

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[PATCH] NEWS: mention new hyperv features
by Jonathon Jongsma 01 Apr '26

01 Apr '26

Signed-off-by: Jonathon Jongsma <jjongsma(a)redhat.com> --- NEWS.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/NEWS.rst b/NEWS.rst index 4196222b40..0117ebc4a7 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -41,6 +41,14 @@ v12.2.0 (unreleased) appropriate flags. This can be used for storage technologies which lack efficient zeroing support. + * hyperv: Add basic snapshot functionality + + The hyperv driver now implements the following libvirt APIs: + ``virDomainDefineXMLFlags()``, ``virDomainSnapshotLookupByName()``, + ``virDomainListAllSnapshots()``, ``virDomainSnapshotNum()``, + ``virDomainSnapshotGetXMLDesc()``, ``virDomainSnapshotCurrent()``, + ``virDomainHasCurrentSnapshot()``, ``virDomainSnapshotGetParent()``. + * **Improvements** * conf: support more than 255 vCPUs with amd-iommu @@ -61,6 +69,9 @@ v12.2.0 (unreleased) The bulk statistics (``virsh domstats --block --backing``) now report also information about the ``<dataStore>`` if given disk uses this feature. + * hyperv: Hyper-V guests now report TPM device status in their domain xml + definition. + * **Bug fixes** * qemu: Fix crash when attaching network inteface with hostdev network -- 2.53.0

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[libvirt PATCH] NEWS: Document IOMMUFD fixes and new features
by Pavel Hrdina 31 Mar '26

31 Mar '26

Signed-off-by: Pavel Hrdina <phrdina(a)redhat.com> --- NEWS.rst | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/NEWS.rst b/NEWS.rst index 9d490ebbca..cab0a6ce70 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -17,6 +17,18 @@ v12.2.0 (unreleased) * **New features** + * qemu: Add support to configure IOMMUFD backend for whole VM + + In addition to setting IOMMUFD backend for each device it is possible + to use the new ``<iommufd>`` element to enable IOMMUFD backend for all + host devices. Users can still change it per device. + + * qemu: Add support to pass FD for IOMMUFD when starting VM + + Management applications running unprivileged libvirt can open /dev/iommu + and pass FD to libvirt in order to change locked memory accounting. + This is done via new ``<iommufd>`` element. + * **Improvements** * conf: support more than 255 vCPUs with amd-iommu @@ -28,6 +40,11 @@ v12.2.0 (unreleased) * **Bug fixes** + * qemu: Fix crash when attaching network inteface with hostdev network + + Introduced in v12.1.0 by implementing IOMMUFD backend support for + host devices. + v12.1.0 (2026-03-02) ==================== -- 2.53.0

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[PATCH] NEWS: Mention VIR_CONNECT_GET_DOMAIN_CAPABILITIES_EXPAND_CPU_FEATURES
by Jiri Denemark 31 Mar '26

31 Mar '26

From: Jiri Denemark <jdenemar(a)redhat.com> Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- NEWS.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/NEWS.rst b/NEWS.rst index 9d490ebbca..74ab40eadd 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -26,6 +26,12 @@ v12.2.0 (unreleased) so that XTSup is required there. Additionally, it is automatically enabled if needed. + * Introduce VIR_CONNECT_GET_DOMAIN_CAPABILITIES_EXPAND_CPU_FEATURES flag + + This new flag for virConnectGetDomainCapabilities can be used to request + the host-model CPU definition to include all supported features (normally + only extra features relative to the selected CPU model are listed). + * **Bug fixes** -- 2.53.0

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[PATCH] NEWS: Document 'handle' fs backend removal, blockjob backend zeroing and stats for '<dataStore>'
by Peter Krempa 31 Mar '26

31 Mar '26

From: Peter Krempa <pkrempa(a)redhat.com> Signed-off-by: Peter Krempa <pkrempa(a)redhat.com> --- NEWS.rst | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/NEWS.rst b/NEWS.rst index 9d490ebbca..b66badf598 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -15,8 +15,20 @@ v12.2.0 (unreleased) * **Removed features** + * qemu: Stop advertising support for ``handle`` backend of p9 filesystems + + QEMU removed the feature in the 4.0 release, but our capability XML + still reported it. + * **New features** + * qemu: Add support for declaring that storage was zeroed for storage copy APIs + + The qemu driver now can skip zeroing of the storage during + ``virDomainBlockCopy`` or migration with non-shared storage with the + appropriate flags. This can be used for storage technologies which lack + efficient zeroing support. + * **Improvements** * conf: support more than 255 vCPUs with amd-iommu @@ -26,6 +38,11 @@ v12.2.0 (unreleased) so that XTSup is required there. Additionally, it is automatically enabled if needed. + * qemu: Add statistics for ``<dataStore>`` storage + + The bulk statistics (``virsh domstats --block --backing``) now report also + information about the ``<dataStore>`` if given disk uses this feature. + * **Bug fixes** -- 2.53.0

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[libvirt PATCH] qemu_hotplug: Set correct iommufdState on error path
by Pavel Hrdina 31 Mar '26

31 Mar '26

If hotplugging host device that needs to add iommufd object fails we need to remove the iommufd object as well. We also need to update the iommufdState otherwise hotplugging any host device with iommufd will fail for the same VM. Fixes: 5d16bef1a69500791be454239e3b9ac68ec53ace Signed-off-by: Pavel Hrdina <phrdina(a)redhat.com> --- src/qemu/qemu_hotplug.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index c86ebc59d0..9439948089 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -1679,8 +1679,10 @@ qemuDomainAttachHostPCIDevice(virQEMUDriver *driver, if (virHostdevIsPCIDeviceWithIOMMUFD(hostdev)) { qemuDomainObjEnterMonitor(vm); - if (removeiommufd) + if (removeiommufd) { + priv->iommufdState = false; ignore_value(qemuMonitorDelObject(priv->mon, "iommufd0", false)); + } qemuFDPassDirectTransferMonitorRollback(hostdevPriv->vfioDeviceFd, priv->mon); qemuFDPassDirectTransferMonitorRollback(priv->iommufd, priv->mon); -- 2.53.0

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[PATCH] NEWS: Document features/improvements/bug fixes I've participated in
by Michal Privoznik 31 Mar '26

31 Mar '26

From: Michal Privoznik <mprivozn(a)redhat.com> There are some features/improvements/bug fixes I've either contributed or reviewed/merged. Document them for upcoming release. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- NEWS.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/NEWS.rst b/NEWS.rst index 59e209ec73..9d490ebbca 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -19,6 +19,13 @@ v12.2.0 (unreleased) * **Improvements** + * conf: support more than 255 vCPUs with amd-iommu + + With 256 or more vCPUs libvirt previously required EIM enabled for all + models of IOMMU. This is not valid for AMD model and validation was changed + so that XTSup is required there. Additionally, it is automatically enabled + if needed. + * **Bug fixes** -- 2.52.0

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[PATCH v5 0/3] nwfilter: add nwfilter nftables driver
by Dion Bosschieter 30 Mar '26

30 Mar '26

This series aims to implement nftables as a backend driver for the nwfilter feature. The idea is that it will replace the ebiptables driver and provide an easy way for users to switch from one driver to another. The 1st patch introduces the new nwfilter driver. After which nwfilter allows users to choose it in the 2nd patch. The last patch introduces unit testing of the new nftables driver. - Implemented very basic nwfilter.conf reading and choosing a nwfilter driver based on the name of the drivers (nftables/ebiptables). Defaults to the nftables driver, based on the firewall_backend_priority meson option, following the bridge driver logic. - Resolves issue https://gitlab.com/libvirt/libvirt/-/issues/603 benchmarks showed that the amount of iifname jumps for each interface with is the cause for this. Switched the nftables driver towards a vmap (verdict map) so we can have 1 rule that jumps to the correct root input/output chain per interface. Which improves throughput as when the number of interface check and jump rules increases the throughput decreases. The issue describes the interface matching works using the interface name and the majority of the effort is the strncpy, this commit also switches nftables to an interface_index compare instead. However, just using the interface_index is not enough, the amount of oif and iif jump rules causes quite a performance issue, the vmap instead solves this. - Split rules into separate tables: "libvirt-nwfilter-ethernet" and "libvirt-nwfilter-other" to preserve existing firewall behavior. - Reworked chain logic for clarity with root -input/-output chains per interface. input in the VM interface is filtered in the -input chain(s), output out of the VM inteface is filtered in the -output chain(s). - Stuck with prerouting and postrouting as hooks for input / output on the -ethernet and -other table. This makes it easier to merge the tables in the future. Saving management of two tables and decreasing the amount of tables a packet sees. Currently ebtables filtering happens via PREROUTING and POSTROUTING hooks, while ip/ip6tables filtering happens in the output/forward hooks. - Stuck with 2 tables for compatibility reasons with eb iptables, unifying into 1 table will break users firewall definitions, which depend on being able to do accepts on ethernet rules (which currently get defined via ebtables) and additional filtering via the ip rules (which currently get defined via ip(6)tables). The nwfilter_nftables_driver keeps splitting the ethernet and non ethernet (other) rules in seperate tables "libvirt-nwfilter-ethernet" and "libvirt-nwfilter-other". - Rewrote chain logic, so it is easier to understand, input in the VM interface is filtered in the -input chain(s), output out of the VM inteface is filtered in the -output chain(s). -ethernet and -other table follow the same style and hook in the same way. - Simplified conntrack handling: rules with accept+conntrack are duplicated to the opposite chain for symmetric behavior, to support the existing ebiptables logic. - Firewall updates continue use tmp names for atomic replacement. Unsupported nwfilter features (for now): - STP filtering - Gratuitous ARP filtering - IPSets (potential future support via nft sets) - Reject due to filtering in pre/postrouting, using drop instead of reject, copying logic from existing ebiptables ebtables actions Future improvements: - Use `nft -f` for atomic rule application. - Optional single-table mode via nwfilter.conf. - Optimize boot phase with chain hash comparison. --- Changes in v5: - Fix rarp support via nft raw payload expression Changes in v4: - Fix rarp nft commands "arp saddr ether" "arp daddr ether" - Filter chain creation, don't create unnecessary chains - Apply danpb seperate argument suggestion - Fix table not existing errors in drop all rules - Fix table not existing errors in apply basic rules Changes in v3: - Renamed -other to -inet - Renamed - to _ in table names - Updated rule / chain sorting on ethernet table to to copy ebtables logic - Fix possible broken revert path - Fix remove rules not working in some cases, EBUSY - Shared functions camel case commit - Rename config option - Add extra config params, enable_trace, enable_counters This required passing the config struct to the ebip/nft nwfilter drivers - Add extra augeaus files Changes in v2: - Rename {ebip,nf}tables specific test files in 1 directory instead of seperating them in different directories. - Added default nwfilter.conf file in git, documented including augeas files - Replaced hardcoding of default driver based on existing firewall_backend_priority meson option. - Added nwfilter_driver_conf.{h,c} for configuration handling, to match the common pattern used in other drivers. Dion Bosschieter (3): nwfilter: add nwfilter nftables driver nwfilter: allow use of nftables nwfilter driver via nwfilter.conf nwfilter: add unit tests and test data for nwfilter nftables driver libvirt.spec.in | 7 + po/POTFILES | 2 + src/conf/virnwfilterobj.h | 20 - src/nwfilter/libvirtd_nwfilter.aug | 45 + src/nwfilter/meson.build | 38 + src/nwfilter/nwfilter.conf.in | 50 + src/nwfilter/nwfilter_driver.c | 66 +- src/nwfilter/nwfilter_driver_conf.c | 214 + src/nwfilter/nwfilter_driver_conf.h | 69 + src/nwfilter/nwfilter_ebiptables_driver.c | 4 +- src/nwfilter/nwfilter_ebiptables_driver.h | 2 +- src/nwfilter/nwfilter_gentech_driver.c | 65 +- src/nwfilter/nwfilter_gentech_driver.h | 5 +- src/nwfilter/nwfilter_nftables_driver.c | 2668 ++++++++++++ src/nwfilter/nwfilter_nftables_driver.h | 28 + src/nwfilter/nwfilter_tech_driver.h | 3 +- src/nwfilter/test_libvirtd_nwfilter.aug.in | 7 + tests/meson.build | 2 + tests/nwfilternftablestest.c | 426 ++ .../ah-ipv6-linux.nftables.args | 310 ++ .../ah-linux.nftables.args | 304 ++ .../all-ipv6-linux.nftables.args | 292 ++ .../all-linux.nftables.args | 286 ++ .../arp-linux.nftables.args | 231 + .../nwfilterxml2firewalldata/arp.nftables.xml | 27 + .../comment-linux.nftables.args | 510 +++ .../conntrack-linux.nftables.args | 198 + .../esp-ipv6-linux.nftables.args | 310 ++ .../esp-linux.nftables.args | 304 ++ .../example-1-linux.nftables.args | 268 ++ .../example-2-linux.nftables.args | 352 ++ .../hex-data-linux.nftables.args | 384 ++ .../icmp-direction-linux.nftables.args | 238 ++ .../icmp-direction2-linux.nftables.args | 238 ++ .../icmp-direction3-linux.nftables.args | 184 + .../icmp-linux.nftables.args | 256 ++ .../icmpv6-linux.nftables.args | 328 ++ .../igmp-linux.nftables.args | 304 ++ .../ip-linux.nftables.args | 205 + .../ipt-no-macspoof-linux.nftables.args | 172 + .../ipv6-linux.nftables.args | 511 +++ .../iter1-linux.nftables.args | 304 ++ .../iter2-linux.nftables.args | 3760 +++++++++++++++++ .../iter3-linux.nftables.args | 430 ++ .../mac-linux.nftables.args | 184 + .../rarp-linux.nftables.args | 215 + .../sctp-ipv6-linux.nftables.args | 328 ++ .../sctp-linux.nftables.args | 328 ++ .../target-linux.nftables.args | 466 ++ .../target2-linux.nftables.args | 322 ++ .../tcp-ipv6-linux.nftables.args | 328 ++ .../tcp-linux.nftables.args | 476 +++ .../udp-ipv6-linux.nftables.args | 328 ++ .../udp-linux.nftables.args | 328 ++ .../udplite-ipv6-linux.nftables.args | 310 ++ .../udplite-linux.nftables.args | 304 ++ .../vlan-linux.nftables.args | 271 ++ .../ah-ipv6-linux.args | 304 ++ .../nwfilterxml2nftfirewalldata/ah-linux.args | 298 ++ .../all-ipv6-linux.args | 286 ++ .../all-linux.args | 280 ++ .../arp-linux.args | 215 + tests/nwfilterxml2nftfirewalldata/arp.xml | 27 + .../comment-linux.args | 483 +++ .../conntrack-linux.args | 198 + .../esp-ipv6-linux.args | 304 ++ .../esp-linux.args | 298 ++ .../example-1-linux.args | 266 ++ .../example-2-linux.args | 348 ++ .../hex-data-linux.args | 357 ++ .../icmp-direction-linux.args | 238 ++ .../icmp-direction2-linux.args | 238 ++ .../icmp-direction3-linux.args | 184 + .../icmp-linux.args | 252 ++ .../icmpv6-linux.args | 322 ++ .../igmp-linux.args | 298 ++ .../nwfilterxml2nftfirewalldata/ip-linux.args | 198 + .../ipt-no-macspoof-linux.args | 169 + .../ipv6-linux.args | 474 +++ .../iter1-linux.args | 298 ++ .../iter2-linux.args | 3598 ++++++++++++++++ .../iter3-linux.args | 418 ++ .../mac-linux.args | 180 + .../rarp-linux.args | 215 + .../sctp-ipv6-linux.args | 314 ++ .../sctp-linux.args | 314 ++ .../target-linux.args | 452 ++ .../target2-linux.args | 316 ++ .../tcp-ipv6-linux.args | 314 ++ .../tcp-linux.args | 468 ++ .../udp-ipv6-linux.args | 314 ++ .../udp-linux.args | 314 ++ .../udplite-ipv6-linux.args | 304 ++ .../udplite-linux.args | 298 ++ .../vlan-linux.args | 264 ++ tests/nwfilterxml2nftfirewalltest.c | 438 ++ 96 files changed, 33369 insertions(+), 102 deletions(-) create mode 100644 src/nwfilter/libvirtd_nwfilter.aug create mode 100644 src/nwfilter/nwfilter.conf.in create mode 100644 src/nwfilter/nwfilter_driver_conf.c create mode 100644 src/nwfilter/nwfilter_driver_conf.h create mode 100644 src/nwfilter/nwfilter_nftables_driver.c create mode 100644 src/nwfilter/nwfilter_nftables_driver.h create mode 100644 src/nwfilter/test_libvirtd_nwfilter.aug.in create mode 100644 tests/nwfilternftablestest.c create mode 100755 tests/nwfilterxml2firewalldata/ah-ipv6-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/ah-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/all-ipv6-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/all-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/arp-linux.nftables.args create mode 100644 tests/nwfilterxml2firewalldata/arp.nftables.xml create mode 100755 tests/nwfilterxml2firewalldata/comment-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/conntrack-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/esp-ipv6-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/esp-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/example-1-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/example-2-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/hex-data-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/icmp-direction-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/icmp-direction2-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/icmp-direction3-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/icmp-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/icmpv6-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/igmp-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/ip-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/ipt-no-macspoof-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/ipv6-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/iter1-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/iter2-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/iter3-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/mac-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/rarp-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/sctp-ipv6-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/sctp-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/target-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/target2-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/tcp-ipv6-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/tcp-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/udp-ipv6-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/udp-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/udplite-ipv6-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/udplite-linux.nftables.args create mode 100755 tests/nwfilterxml2firewalldata/vlan-linux.nftables.args create mode 100755 tests/nwfilterxml2nftfirewalldata/ah-ipv6-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/ah-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/all-ipv6-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/all-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/arp-linux.args create mode 100644 tests/nwfilterxml2nftfirewalldata/arp.xml create mode 100755 tests/nwfilterxml2nftfirewalldata/comment-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/conntrack-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/esp-ipv6-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/esp-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/example-1-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/example-2-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/hex-data-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/icmp-direction-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/icmp-direction2-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/icmp-direction3-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/icmp-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/icmpv6-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/igmp-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/ip-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/ipt-no-macspoof-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/ipv6-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/iter1-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/iter2-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/iter3-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/mac-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/rarp-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/sctp-ipv6-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/sctp-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/target-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/target2-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/tcp-ipv6-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/tcp-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/udp-ipv6-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/udp-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/udplite-ipv6-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/udplite-linux.args create mode 100755 tests/nwfilterxml2nftfirewalldata/vlan-linux.args create mode 100644 tests/nwfilterxml2nftfirewalltest.c -- 2.43.0

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[PATCH v6 0/6] cover: RFE libvirt secret encryption on disk
by Arun Menon 30 Mar '26

30 Mar '26

Libvirt secrets are stored unencrypted on the disk. With this series we want to start encrypting the secrets. 1. Introduce the GnuTLS decryption wrapper functions that work exact opposite to the encryption wrappers. 2. Add a new service called virt-secrets-init-encryption, that is linked to the virtsecretd service. virtsecretd service only starts after the new service generates a random encryption key. 3. Add a new secrets.conf configuration file that helps user to set a. secrets_encryption_key - allows the user to specify the encryption key file path, in case the default key is not to be used. b. encrypt_data - set to 0 or 1. If set to 1, then the newly added secrets will be encrypted. 4. Add encryption scheme or cipher attribute that will allow us to choose the last used cipher. 5. Once we have the encryption key, and a reliable way to tell the daemon what encryption scheme the secret object is using, we can encrypt the secrets on disk and store them in <uuid>.<encryption_scheme> format. It is important to note that if the encryption key is changed between restarts, then the respective secret will not be loaded by the driver. 6. Add documentation. This is a sincere attempt to improve upon the already submitted patch https://lists.libvirt.org/archives/list/devel@lists.libvirt.org/thread/KE6G… Resolves: https://issues.redhat.com/browse/RHEL-7125 --- Changes in v6: - changes to use obj->secretValueFile as base - does local suffix lookups - refactors code so that the base64 encoding is in common code paths - moves local variable declaration inside blocks using them - refactors loader to use virFileReadAll instead of open-coding - fixes virSecretObjDeleteData to not rely on the actual filename Changes in v5: - Fix the bug of updating old secrets, prior to 12.1.0. Old secrets, when updated, now are stored with the latest encryption scheme if encryption is on. - Remove any logic in setting the secretValueFile in virSecretObjListAdd. Move it to virSecretLoadValue and virSecretObjSetValue. - Change urandom to random. Change default permission bits to 0077. - Update the documentation. Changes in v4: - Fix the regression of loading unencrypted secrets after an upgrade. Previously the .base64 unencrypted secrets were not being loaded. - Add documentation on encrypted secrets. Changes in v3: - Secrets xml configuration no longer stores the encryption scheme, therefore not allowing the user to toggle between ciphers. - Removed unnecessary socket files of the new service. It now has a general configuration with which it starts. - Addressed review comments from Peter on coding style and design. - Loading of secrets is dependent on the file extension. Most recent cipher is used while saving the secrets. Changes in v2: - Corrected the encryption key length check. It should be 32. - Added a new patch that introduces the encryption scheme attribute. This will help us identify which secrets are encrypted. - A new systemd unit service file added that starts before virtsecretd, helping us to construct a random encryption key and pass it to the virtsecretd service. - Parsing logic of secrets.conf moved to a separate file. - Spec file changes, augeas. Arun Menon (6): util: Add support for GnuTLS decryption secret: Set up default encryption secret key for the virtsecretd service secret: Add secret.conf configuration file and parse it secret: Rename virSecretObj structure attribute from base64File to secretValueFile secret: Add functionality to load and save secrets in encrypted format docs: secret: Add documentation of secret encryption feature docs/drvsecret.rst | 4 + docs/meson.build | 1 + docs/secretencryption.rst | 105 +++++++++ include/libvirt/virterror.h | 1 + libvirt.spec.in | 8 + po/POTFILES | 1 + src/conf/virsecretobj.c | 210 +++++++++++++----- src/conf/virsecretobj.h | 14 +- src/libvirt_private.syms | 1 + src/meson.build | 1 + src/remote/libvirtd.service.in | 4 + src/secret/libvirt_secrets.aug | 40 ++++ src/secret/meson.build | 32 +++ src/secret/secret.conf.in | 14 ++ src/secret/secret_config.c | 179 +++++++++++++++ src/secret/secret_config.h | 40 ++++ src/secret/secret_driver.c | 29 ++- src/secret/test_libvirt_secrets.aug.in | 6 + .../virt-secret-init-encryption.service.in | 8 + src/secret/virtsecretd.service.extra.in | 8 + src/util/vircrypto.c | 126 ++++++++++- src/util/vircrypto.h | 8 + src/util/virerror.c | 3 + tests/vircryptotest.c | 65 ++++++ 24 files changed, 840 insertions(+), 68 deletions(-) create mode 100644 docs/secretencryption.rst create mode 100644 src/secret/libvirt_secrets.aug create mode 100644 src/secret/secret.conf.in create mode 100644 src/secret/secret_config.c create mode 100644 src/secret/secret_config.h create mode 100644 src/secret/test_libvirt_secrets.aug.in create mode 100644 src/secret/virt-secret-init-encryption.service.in -- 2.51.1

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Entering freeze for libvirt-12.2.0
by Jiri Denemark 30 Mar '26

30 Mar '26

I have just tagged v12.2.0-rc1 in the repository and pushed signed tarballs to https://download.libvirt.org/ Please give the release candidate some testing and in case you find a serious issue which should have a fix in the upcoming release, feel free to reply to this thread to make sure the issue is more visible. If you have not done so yet, please update NEWS.rst to document any significant change you made since the last release. Jirka

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