libvirt-6.1.0-4

Fix libxl driver startup crash (bz #1842318)
libvirt-6.1.0-3
2020-06-02 13:46:51 -04:00 · 2020-05-26 11:44:02 -04:00
18 changed files with 1437 additions and 3528 deletions
@@ -0,0 +1,36 @@
+From: Michal Privoznik <mprivozn@redhat.com>
+Date: Mon, 9 Mar 2020 16:40:57 +0100
+Subject: [PATCH] virDomainDiskTranslateSourcePool: Check for disk type
+ correctly
+
+When rewriting the virDomainDiskTranslateSourcePool() function in
+v6.1.0-rc1~184 a typo was introduced. Previously, we allowed
+startup policy only for those volumes which translated to
+VIR_STORAGE_TYPE_FILE. But starting with the referenced commit,
+the value we checked for was changed to VIR_STORAGE_VOL_FILE
+which comes from a different enum and has a different value too.
+This is wrong, because virStorageSourceGetActualType() returns a
+value from the original enum.
+
+Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1811728
+
+Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
+Reviewed-by: Peter Krempa <pkrempa@redhat.com>
+(cherry picked from commit 3918dbd84e4951b43f93fbf50ef52be00274850c)
+---
+ src/conf/domain_conf.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
+index 17867eeece..fd2e8f4eb5 100644
+--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
+@@ -31746,7 +31746,7 @@ virDomainDiskTranslateSourcePool(virDomainDiskDefPtr def)
+     }
+ 
+     if (def->startupPolicy != 0 &&
+-        virStorageSourceGetActualType(def->src) != VIR_STORAGE_VOL_FILE) {
+        virStorageSourceGetActualType(def->src) != VIR_STORAGE_TYPE_FILE) {
+         virReportError(VIR_ERR_XML_ERROR, "%s",
+                        _("'startupPolicy' is only valid for "
+                          "'file' type volume"));
@@ -1,29 +0,0 @@
-From: Martin Kletzander <mkletzan@redhat.com>
-Date: Fri, 16 Aug 2024 13:56:51 +0200
-Subject: [PATCH] virarptable: Properly calculate rtattr length
-Content-type: text/plain
-
-Use convenience macro which does almost the same thing we were doing,
-but also pads out the payload length to a multiple of NLMSG_ALIGNTO (4)
-bytes.
-
-Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
-Reviewed-by: Laine Stump <laine@redhat.com>
---
- src/util/virarptable.c | 3 +--
- 1 file changed, 1 insertion(+), 2 deletions(-)
-
-diff --git a/src/util/virarptable.c b/src/util/virarptable.c
-index 299dddd664..d8e41c5a86 100644
--- a/src/util/virarptable.c
-+++ b/src/util/virarptable.c
-@@ -102,8 +102,7 @@ virArpTableGet(void)
-             return table;
- 
-         VIR_WARNINGS_NO_CAST_ALIGN
-        parse_rtattr(tb, NDA_MAX, NDA_RTA(r),
-                     nh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
-+        parse_rtattr(tb, NDA_MAX, NDA_RTA(r), NLMSG_PAYLOAD(nh, sizeof(*r)));
-         VIR_WARNINGS_RESET
- 
-         if (tb[NDA_DST] == NULL || tb[NDA_LLADDR] == NULL)
@@ -0,0 +1,55 @@
+From: Laine Stump <laine@redhat.com>
+Date: Thu, 7 May 2020 22:32:59 -0400
+Subject: [PATCH] network: make it safe to call networkSetupPrivateChains()
+ multiple times
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+networkSetupPrivateChains() is currently called only once per run of
+libvirtd, so it can assume that errInitV4 and errInitV6 are empty/null
+when it is called. In preparation for potentially calling this
+function multiple times during one run, this patch moves the reset of
+errInitV[46] to the top of the function, to assure no memory is
+leaked.
+
+Signed-off-by: Laine Stump <laine@redhat.com>
+Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
+(cherry picked from commit de110f110fb917a31b9f33ad8e4b3c1d3284766a)
+---
+ src/network/bridge_driver_linux.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/src/network/bridge_driver_linux.c b/src/network/bridge_driver_linux.c
+index 7bbde5c6a9..80bd2409e1 100644
+--- a/src/network/bridge_driver_linux.c
+++ b/src/network/bridge_driver_linux.c
+@@ -48,6 +48,10 @@ static void networkSetupPrivateChains(void)
+     VIR_DEBUG("Setting up global firewall chains");
+ 
+     createdChains = false;
+    virFreeError(errInitV4);
+    errInitV4 = NULL;
+    virFreeError(errInitV6);
+    errInitV6 = NULL;
+ 
+     rc = iptablesSetupPrivateChains(VIR_FIREWALL_LAYER_IPV4);
+     if (rc < 0) {
+@@ -56,8 +60,6 @@ static void networkSetupPrivateChains(void)
+         errInitV4 = virSaveLastError();
+         virResetLastError();
+     } else {
+-        virFreeError(errInitV4);
+-        errInitV4 = NULL;
+         if (rc) {
+             VIR_DEBUG("Created global IPv4 chains");
+             createdChains = true;
+@@ -73,8 +75,6 @@ static void networkSetupPrivateChains(void)
+         errInitV6 = virSaveLastError();
+         virResetLastError();
+     } else {
+-        virFreeError(errInitV6);
+-        errInitV6 = NULL;
+         if (rc) {
+             VIR_DEBUG("Created global IPv6 chains");
+             createdChains = true;
@@ -1,34 +0,0 @@
-From: Martin Kletzander <mkletzan@redhat.com>
-Date: Fri, 16 Aug 2024 13:59:15 +0200
-Subject: [PATCH] virarptable: Fix check for message length
-Content-type: text/plain
-
-The previous check was all wrong since it calculated the how long would
-the netlink message be if the netlink header was the payload and then
-subtracted that from the whole message length, a variable that was not
-used later in the code.  This check can fail if there are no additional
-payloads, struct rtattr in particular, which we are parsing later,
-however the RTA_OK macro would've caught that anyway.
-
-Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
-Reviewed-by: Laine Stump <laine@redhat.com>
---
- src/util/virarptable.c | 3 +--
- 1 file changed, 1 insertion(+), 2 deletions(-)
-
-diff --git a/src/util/virarptable.c b/src/util/virarptable.c
-index d8e41c5a86..45ee76766f 100644
--- a/src/util/virarptable.c
-+++ b/src/util/virarptable.c
-@@ -81,10 +81,9 @@ virArpTableGet(void)
-     for (; NLMSG_OK(nh, msglen); nh = NLMSG_NEXT(nh, msglen)) {
-         VIR_WARNINGS_RESET
-         struct ndmsg *r = NLMSG_DATA(nh);
-        int len = nh->nlmsg_len;
-         void *addr;
- 
-        if ((len -= NLMSG_LENGTH(sizeof(*nh))) < 0) {
-+        if (nh->nlmsg_len < NLMSG_SPACE(sizeof(*r))) {
-             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
-                            _("wrong nlmsg len"));
-             goto cleanup;
@@ -0,0 +1,265 @@
+From: Laine Stump <laine@redhat.com>
+Date: Thu, 7 May 2020 21:54:39 -0400
+Subject: [PATCH] network: force re-creation of iptables private chains on
+ firewalld restart
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+When firewalld is stopped, it removes *all* iptables rules and chains,
+including those added by libvirt. Since restarting firewalld means
+stopping and then starting it, any time it is restarted, libvirt needs
+to recreate all the private iptables chains it uses, along with all
+the rules it adds.
+
+We already have code in place to call networkReloadFirewallRules() any
+time we're notified of a firewalld start, and
+networkReloadFirewallRules() will call
+networkPreReloadFirewallRules(), which calls
+networkSetupPrivateChains(); unfortunately that last call is called
+using virOnce(), meaning that it will only be called the first time
+through networkPreReloadFirewallRules() after libvirtd starts - so of
+course when firewalld is later restarted, the call to
+networkSetupPrivateChains() is skipped.
+
+The neat and tidy way to fix this would be if there was a standard way
+to reset a pthread_once_t object so that the next time virOnce was
+called, it would think the function hadn't been called, and call it
+again. Unfortunately, there isn't any official way of doing that (we
+*could* just fill it with 0 and hope for the best, but that doesn't
+seem very safe.
+
+So instead, this patch just adds a static variable called
+chainInitDone, which is set to true after networkSetupPrivateChains()
+is called for the first time, and then during calls to
+networkPreReloadFirewallRules(), if chainInitDone is set, we call
+networkSetupPrivateChains() directly instead of via virOnce().
+
+It may seem unsafe to directly call a function that is meant to be
+called only once, but I think in this case we're safe - there's
+nothing in the function that is inherently "once only" - it doesn't
+initialize anything that can't safely be re-initialized (as long as
+two threads don't try to do it at the same time), and it only happens
+when responding to a dbus message that firewalld has been started (and
+I don't think it's possible for us to be processing two of those at
+once), and even then only if the initial call to the function has
+already been completed (so we're safe if we receive a firewalld
+restart call at a time when we haven't yet called it, or even if
+another thread is already in the process of executing it. The only
+problematic bit I can think of is if another thread is in the process
+of adding an iptable rule at the time we're executing this function,
+but 1) none of those threads will be trying to add chains, and 2) if
+there was a concurrency problem with other threads adding iptables
+rules while firewalld was being restarted, it would still be a problem
+even without this change.
+
+This is yet another patch that fixes an occurrence of this error:
+
+COMMAND_FAILED: '/usr/sbin/iptables -w10 -w --table filter --insert LIBVIRT_INP --in-interface virbr0 --protocol tcp --destination-port 67 --jump ACCEPT' failed: iptables: No chain/target/match by that name.
+
+In particular, this resolves: https://bugzilla.redhat.com/1813830
+
+Signed-off-by: Laine Stump <laine@redhat.com>
+Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
+(cherry picked from commit f5418b427e7d2f26803880309478de9103680826)
+---
+ src/network/bridge_driver.c          | 16 ++++---
+ src/network/bridge_driver_linux.c    | 69 ++++++++++++++++++----------
+ src/network/bridge_driver_nop.c      |  3 +-
+ src/network/bridge_driver_platform.h |  2 +-
+ 4 files changed, 58 insertions(+), 32 deletions(-)
+
+diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
+index 369e80a889..aaf14defe4 100644
+--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
+@@ -273,7 +273,9 @@ static int
+ networkShutdownNetworkExternal(virNetworkObjPtr obj);
+ 
+ static void
+-networkReloadFirewallRules(virNetworkDriverStatePtr driver, bool startup);
+networkReloadFirewallRules(virNetworkDriverStatePtr driver,
+                           bool startup,
+                           bool force);
+ 
+ static void
+ networkRefreshDaemons(virNetworkDriverStatePtr driver);
+@@ -689,7 +691,7 @@ firewalld_dbus_filter_bridge(DBusConnection *connection G_GNUC_UNUSED,
+ 
+     if (reload) {
+         VIR_DEBUG("Reload in bridge_driver because of firewalld.");
+-        networkReloadFirewallRules(driver, false);
+        networkReloadFirewallRules(driver, false, true);
+     }
+ 
+     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+@@ -798,7 +800,7 @@ networkStateInitialize(bool privileged,
+     virNetworkObjListPrune(network_driver->networks,
+                            VIR_CONNECT_LIST_NETWORKS_INACTIVE |
+                            VIR_CONNECT_LIST_NETWORKS_TRANSIENT);
+-    networkReloadFirewallRules(network_driver, true);
+    networkReloadFirewallRules(network_driver, true, false);
+     networkRefreshDaemons(network_driver);
+ 
+     if (virDriverShouldAutostart(network_driver->stateDir, &autostart) < 0)
+@@ -868,7 +870,7 @@ networkStateReload(void)
+                                 network_driver->networkConfigDir,
+                                 network_driver->networkAutostartDir,
+                                 network_driver->xmlopt);
+-    networkReloadFirewallRules(network_driver, false);
+    networkReloadFirewallRules(network_driver, false, false);
+     networkRefreshDaemons(network_driver);
+     virNetworkObjListForEach(network_driver->networks,
+                              networkAutostartConfig,
+@@ -2236,14 +2238,16 @@ networkReloadFirewallRulesHelper(virNetworkObjPtr obj,
+ 
+ 
+ static void
+-networkReloadFirewallRules(virNetworkDriverStatePtr driver, bool startup)
+networkReloadFirewallRules(virNetworkDriverStatePtr driver,
+                           bool startup,
+                           bool force)
+ {
+     VIR_INFO("Reloading iptables rules");
+     /* Ideally we'd not even register the driver when unprivilegd
+      * but until we untangle the virt driver that's not viable */
+     if (!driver->privileged)
+         return;
+-    networkPreReloadFirewallRules(driver, startup);
+    networkPreReloadFirewallRules(driver, startup, force);
+     virNetworkObjListForEach(driver->networks,
+                              networkReloadFirewallRulesHelper,
+                              NULL);
+diff --git a/src/network/bridge_driver_linux.c b/src/network/bridge_driver_linux.c
+index 80bd2409e1..b0bd207250 100644
+--- a/src/network/bridge_driver_linux.c
+++ b/src/network/bridge_driver_linux.c
+@@ -36,11 +36,14 @@ VIR_LOG_INIT("network.bridge_driver_linux");
+ #define PROC_NET_ROUTE "/proc/net/route"
+ 
+ static virOnceControl createdOnce;
+-static bool createdChains;
+static bool chainInitDone; /* true iff networkSetupPrivateChains was ever called */
+static bool createdChains; /* true iff networkSetupPrivateChains created chains during most recent call */
+ static virErrorPtr errInitV4;
+ static virErrorPtr errInitV6;
+ 
+-/* Only call via virOnce */
+/* Usually only called via virOnce, but can also be called directly in
+ * response to firewalld reload (if chainInitDone == true)
+ */
+ static void networkSetupPrivateChains(void)
+ {
+     int rc;
+@@ -82,6 +85,8 @@ static void networkSetupPrivateChains(void)
+             VIR_DEBUG("Global IPv6 chains already exist");
+         }
+     }
+
+    chainInitDone = true;
+ }
+ 
+ 
+@@ -111,7 +116,10 @@ networkHasRunningNetworks(virNetworkDriverStatePtr driver)
+ }
+ 
+ 
+-void networkPreReloadFirewallRules(virNetworkDriverStatePtr driver, bool startup)
+void
+networkPreReloadFirewallRules(virNetworkDriverStatePtr driver,
+                              bool startup,
+                              bool force)
+ {
+     /*
+      * If there are any running networks, we need to
+@@ -130,29 +138,42 @@ void networkPreReloadFirewallRules(virNetworkDriverStatePtr driver, bool startup
+      * of starting the network though as that makes them
+      * more likely to be seen by a human
+      */
+-    if (!networkHasRunningNetworks(driver)) {
+-        VIR_DEBUG("Delayed global rule setup as no networks are running");
+-        return;
+-    }
+    if (chainInitDone && force) {
+        /* The Private chains have already been initialized once
+         * during this run of libvirtd, so 1) we can't do it again via
+         * virOnce(), and 2) we need to re-add the private chains even
+         * if there are currently no running networks, because the
+         * next time a network is started, libvirt will expect that
+         * the chains have already been added. So we call directly
+         * instead of via virOnce().
+         */
+        networkSetupPrivateChains();
+ 
+-    ignore_value(virOnce(&createdOnce, networkSetupPrivateChains));
+    } else {
+        if (!networkHasRunningNetworks(driver)) {
+            VIR_DEBUG("Delayed global rule setup as no networks are running");
+            return;
+        }
+ 
+-    /*
+-     * If this is initial startup, and we just created the
+-     * top level private chains we either
+-     *
+-     *   - upgraded from old libvirt
+-     *   - freshly booted from clean state
+-     *
+-     * In the first case we must delete the old rules from
+-     * the built-in chains, instead of our new private chains.
+-     * In the second case it doesn't matter, since no existing
+-     * rules will be present. Thus we can safely just tell it
+-     * to always delete from the builin chain
+-     */
+-    if (startup && createdChains) {
+-        VIR_DEBUG("Requesting cleanup of legacy firewall rules");
+-        iptablesSetDeletePrivate(false);
+        ignore_value(virOnce(&createdOnce, networkSetupPrivateChains));
+
+        /*
+         * If this is initial startup, and we just created the
+         * top level private chains we either
+         *
+         *   - upgraded from old libvirt
+         *   - freshly booted from clean state
+         *
+         * In the first case we must delete the old rules from
+         * the built-in chains, instead of our new private chains.
+         * In the second case it doesn't matter, since no existing
+         * rules will be present. Thus we can safely just tell it
+         * to always delete from the builin chain
+         */
+        if (startup && createdChains) {
+            VIR_DEBUG("Requesting cleanup of legacy firewall rules");
+            iptablesSetDeletePrivate(false);
+        }
+     }
+ }
+ 
+diff --git a/src/network/bridge_driver_nop.c b/src/network/bridge_driver_nop.c
+index 08d737511f..db89c10023 100644
+--- a/src/network/bridge_driver_nop.c
+++ b/src/network/bridge_driver_nop.c
+@@ -20,7 +20,8 @@
+ #include <config.h>
+ 
+ void networkPreReloadFirewallRules(virNetworkDriverStatePtr driver G_GNUC_UNUSED,
+-                                   bool startup G_GNUC_UNUSED)
+                                   bool startup G_GNUC_UNUSED,
+                                   bool force G_GNUC_UNUSED)
+ {
+ }
+ 
+diff --git a/src/network/bridge_driver_platform.h b/src/network/bridge_driver_platform.h
+index 169417a6c0..48ab52c160 100644
+--- a/src/network/bridge_driver_platform.h
+++ b/src/network/bridge_driver_platform.h
+@@ -62,7 +62,7 @@ struct _virNetworkDriverState {
+ typedef struct _virNetworkDriverState virNetworkDriverState;
+ typedef virNetworkDriverState *virNetworkDriverStatePtr;
+ 
+-void networkPreReloadFirewallRules(virNetworkDriverStatePtr driver, bool startup);
+void networkPreReloadFirewallRules(virNetworkDriverStatePtr driver, bool startup, bool force);
+ void networkPostReloadFirewallRules(bool startup);
+ 
+ int networkCheckRouteCollision(virNetworkDefPtr def);
@@ -1,46 +0,0 @@
-From: Martin Kletzander <mkletzan@redhat.com>
-Date: Fri, 16 Aug 2024 14:02:48 +0200
-Subject: [PATCH] virarptable: End parsing earlier in case of NLMSG_DONE
-Content-type: text/plain
-
-Check for the last multipart message right as the first thing.  The
-presumption probably was that the last message might still contain a
-payload we want to parse.  However that cannot be true since that would
-have to be a type RTM_NEWNEIGH.  This was not caught because older
-kernels were note sending NLMSG_DONE and probably relied on the fact
-that the parsing just stops after all the messages are walked through,
-which the NLMSG_OK macro successfully did.
-
-Resolves: https://issues.redhat.com/browse/RHEL-52449
-Resolves: https://bugzilla.redhat.com/2302245
-Fixes: a176d67cdfaf5b8237a7e3a80d8be0e6bdf2d8fd
-Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
-Reviewed-by: Laine Stump <laine@redhat.com>
---
- src/util/virarptable.c | 6 +++---
- 1 file changed, 3 insertions(+), 3 deletions(-)
-
-diff --git a/src/util/virarptable.c b/src/util/virarptable.c
-index 45ee76766f..20d11f97b0 100644
--- a/src/util/virarptable.c
-+++ b/src/util/virarptable.c
-@@ -83,6 +83,9 @@ virArpTableGet(void)
-         struct ndmsg *r = NLMSG_DATA(nh);
-         void *addr;
- 
-+        if (nh->nlmsg_type == NLMSG_DONE)
-+            break;
-+
-         if (nh->nlmsg_len < NLMSG_SPACE(sizeof(*r))) {
-             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
-                            _("wrong nlmsg len"));
-@@ -97,9 +100,6 @@ virArpTableGet(void)
-             (!(r->ndm_state == NUD_STALE || r->ndm_state == NUD_REACHABLE)))
-             continue;
- 
-        if (nh->nlmsg_type == NLMSG_DONE)
-            return table;
-
-         VIR_WARNINGS_NO_CAST_ALIGN
-         parse_rtattr(tb, NDA_MAX, NDA_RTA(r), NLMSG_PAYLOAD(nh, sizeof(*r)));
-         VIR_WARNINGS_RESET
@@ -0,0 +1,100 @@
+From: Laine Stump <laine@redhat.com>
+Date: Fri, 1 May 2020 00:05:50 -0400
+Subject: [PATCH] systemd: start libvirtd after firewalld/iptables services
+
+When a system has enabled the iptables/ip6tables services rather than
+firewalld, there is no explicit ordering of the start of those
+services vs. libvirtd. This creates a problem when libvirtd.service is
+started before ip[6]tables, as the latter, when it finally is started,
+will remove all of the iptables rules that had previously been added
+by libvirt, including the custom chains where libvirt's rules are
+kept. This results in an error message similar to the following when a
+user subsequently tries to start a new libvirt network:
+
+ "Error while activating network: Call to virNetworkCreate failed:
+ internal error: Failed to apply firewall rules
+ /usr/sbin/ip6tables -w --table filter --insert LIBVIRT_FWO \
+   --in-interface virbr2 --jump REJECT:
+ ip6tables: No chain/target/match by that name."
+
+(Prior to logging this error, it also would have caused failure to
+forward (or block) traffic in some cases, e.g. for guests on a NATed
+network, since libvirt's rules to forward/block had all been deleted
+and libvirt didn't know about it, so it couldn't fix the problem)
+
+When this happens, the problem can be remedied by simply restarting
+libvirtd.service (which has the side-effect of reloading all
+libvirt-generated firewall rules)
+
+Instead, we can just explicitly stating in the libvirtd.service file
+that libvirtd.service should start after ip6tables.service and
+ip6tables.service, eliminating the race condition that leads to the
+error.
+
+There is also nothing (that I can see) in the systemd .service files
+to guarantee that firewalld.service will be started (if enabled) prior
+to libvirtd.service. The same error scenario given above would occur
+if libvirtd.service started before firewalld.service.  Even before
+that, though libvirtd would have detected that firewalld.service was
+disabled, and then turn off all firewalld support. So, for example,
+firewalld's libvirt zone wouldn't be used, and most likely traffic
+from guests would therefore be blocked (all with no external
+indication of the source of the problem other than a debug-level log
+when libvirtd was started saying that firewalld wasn't in use); also
+libvirtd wouldn't notice when firewalld reloaded its rules (which also
+simultaneously deletes all of libvirt's rules).
+
+I'm not aware of any reports that have been traced back to
+libvirtd.service starting before firewalld.service, but have seen that
+error reported multiple times, and also don't see an existing
+dependency that would guarantee firewalld.service starts before
+libvirtd.service, so it's possible it's been happening and we just
+haven't gotten to the bottom of it.
+
+This patch adds an After= line to the libvirtd.service file for each
+of iptables.service, ip6tables.service, and firewalld.servicee, which
+should guarantee that libvirtd.service isn't started until systemd has
+started whichever of the others is enabled.
+
+This race was diagnosed, and patch proposed, by Jason Montleon in
+https://bugzilla.redhat.com/1723698 . At the time (April 2019) danpb
+agreed with him that this change to libvirtd.service was a reasonable
+thing to do, but I guess everyone thought someone else was going to
+post a patch, so in the end nobody did.
+
+Signed-off-by: Laine Stump <laine@redhat.com>
+Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
+(cherry picked from commit 0756415f147dda15a417bd79eef9a62027d176e6)
+---
+ src/network/virtnetworkd.service.in | 3 +++
+ src/remote/libvirtd.service.in      | 3 +++
+ 2 files changed, 6 insertions(+)
+
+diff --git a/src/network/virtnetworkd.service.in b/src/network/virtnetworkd.service.in
+index 656e8b4f84..56182e1693 100644
+--- a/src/network/virtnetworkd.service.in
+++ b/src/network/virtnetworkd.service.in
+@@ -5,6 +5,9 @@ Requires=virtnetworkd.socket
+ Requires=virtnetworkd-ro.socket
+ Requires=virtnetworkd-admin.socket
+ After=network.target
+After=firewalld.service
+After=iptables.service
+After=ip6tables.service
+ After=dbus.service
+ After=apparmor.service
+ After=local-fs.target
+diff --git a/src/remote/libvirtd.service.in b/src/remote/libvirtd.service.in
+index 90b2cad5b0..cc0d4e3693 100644
+--- a/src/remote/libvirtd.service.in
+++ b/src/remote/libvirtd.service.in
+@@ -11,6 +11,9 @@ Wants=libvirtd-admin.socket
+ Wants=systemd-machined.service
+ Before=libvirt-guests.service
+ After=network.target
+After=firewalld.service
+After=iptables.service
+After=ip6tables.service
+ After=dbus.service
+ After=iscsid.service
+ After=apparmor.service
@@ -1,315 +0,0 @@
-From 807e2670f2704c41f0a1dca81a5d2f2f9336137c Mon Sep 17 00:00:00 2001
-From: Laine Stump <laine@redhat.com>
-Date: Mon, 25 Nov 2024 22:24:44 -0500
-Subject: [PATCH 4/9] util: use a single flags arg for virNetDevBandwidthSet(),
- not multiple bools
-
-Having two bools in the arg list is on the borderline of being
-confusing to anyone trying to read the code, but we're about to add a
-3rd. This patch replaces the two bools with a single flags argument
-which will instead have one or more bits from virNetDevBandwidthFlags
-set.
-
-Signed-off-by: Laine Stump <laine@redhat.com>
-Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
-Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---
- src/lxc/lxc_driver.c           |  8 ++++++--
- src/lxc/lxc_process.c          |  8 ++++++--
- src/network/bridge_driver.c    | 10 ++++++++--
- src/qemu/qemu_command.c        | 11 ++++++++---
- src/qemu/qemu_driver.c         | 29 ++++++++++++++-------------
- src/qemu/qemu_hotplug.c        | 22 +++++++++++++++------
- src/util/virnetdevbandwidth.c  | 36 ++++++++++++++++++++--------------
- src/util/virnetdevbandwidth.h  |  9 +++++++--
- tests/virnetdevbandwidthtest.c |  8 +++++++-
- 9 files changed, 94 insertions(+), 47 deletions(-)
-
-diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
-index 534e257f30..b693980dbb 100644
--- a/src/lxc/lxc_driver.c
-+++ b/src/lxc/lxc_driver.c
-@@ -3570,8 +3570,12 @@ lxcDomainAttachDeviceNetLive(virLXCDriver *driver,
-     actualBandwidth = virDomainNetGetActualBandwidth(net);
-     if (actualBandwidth) {
-         if (virNetDevSupportsBandwidth(actualType)) {
-            if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false,
-                                      !virDomainNetTypeSharesHostView(net)) < 0)
-+            unsigned int flags = 0;
-+
-+            if (!virDomainNetTypeSharesHostView(net))
-+                flags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-+
-+            if (virNetDevBandwidthSet(net->ifname, actualBandwidth, flags) < 0)
-                 goto cleanup;
-         } else {
-             VIR_WARN("setting bandwidth on interfaces of "
-diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c
-index f5eb5383ec..0e689fbb70 100644
--- a/src/lxc/lxc_process.c
-+++ b/src/lxc/lxc_process.c
-@@ -605,8 +605,12 @@ virLXCProcessSetupInterfaces(virLXCDriver *driver,
-         actualBandwidth = virDomainNetGetActualBandwidth(net);
-         if (actualBandwidth) {
-             if (virNetDevSupportsBandwidth(type)) {
-                if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false,
-                                          !virDomainNetTypeSharesHostView(net)) < 0)
-+                unsigned int flags = 0;
-+
-+                if (!virDomainNetTypeSharesHostView(net))
-+                    flags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-+
-+                if (virNetDevBandwidthSet(net->ifname, actualBandwidth, flags) < 0)
-                     goto cleanup;
-             } else {
-                 VIR_WARN("setting bandwidth on interfaces of "
-diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
-index 32572c755f..1c53636450 100644
--- a/src/network/bridge_driver.c
-+++ b/src/network/bridge_driver.c
-@@ -2058,8 +2058,11 @@ networkStartNetworkVirtual(virNetworkDriverState *driver,
-         }
-     }
- 
-    if (virNetDevBandwidthSet(def->bridge, def->bandwidth, true, true) < 0)
-+    if (virNetDevBandwidthSet(def->bridge, def->bandwidth,
-+                              VIR_NETDEV_BANDWIDTH_SET_HIERARCHICAL_CLASS
-+                              | VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED) < 0) {
-         goto error;
-+    }
- 
-     return 0;
- 
-@@ -2141,8 +2144,11 @@ networkStartNetworkBridge(virNetworkObj *obj)
-      * type BRIDGE, is started. On failure, undo anything you've done,
-      * and return -1. On success return 0.
-      */
-    if (virNetDevBandwidthSet(def->bridge, def->bandwidth, true, true) < 0)
-+    if (virNetDevBandwidthSet(def->bridge, def->bandwidth,
-+                              VIR_NETDEV_BANDWIDTH_SET_HIERARCHICAL_CLASS
-+                              | VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED) < 0) {
-         goto error;
-+    }
- 
-     if (networkStartHandleMACTableManagerMode(obj) < 0)
-         goto error;
-diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
-index f15e6bda1e..b4815e5e71 100644
--- a/src/qemu/qemu_command.c
-+++ b/src/qemu/qemu_command.c
-@@ -8840,9 +8840,14 @@ qemuBuildInterfaceCommandLine(virQEMUDriver *driver,
-                                                         def->uuid,
-                                                         !virDomainNetTypeSharesHostView(net)) < 0)
-                     goto cleanup;
-            } else if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false,
-                                             !virDomainNetTypeSharesHostView(net)) < 0) {
-                goto cleanup;
-+            } else {
-+                unsigned int flags = 0;
-+
-+                if (!virDomainNetTypeSharesHostView(net))
-+                    flags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-+
-+                if (virNetDevBandwidthSet(net->ifname, actualBandwidth, flags) < 0)
-+                    goto cleanup;
-             }
-         } else {
-             VIR_WARN("setting bandwidth on interfaces of "
-diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
-index 736602333e..14929616e5 100644
--- a/src/qemu/qemu_driver.c
-+++ b/src/qemu/qemu_driver.c
-@@ -9941,21 +9941,22 @@ qemuDomainSetInterfaceParameters(virDomainPtr dom,
-                 virErrorRestore(&orig_err);
-                 goto endjob;
-             }
-        } else if (virNetDevBandwidthSet(net->ifname, newBandwidth, false,
-                                         !virDomainNetTypeSharesHostView(net)) < 0) {
-            virErrorPtr orig_err;
-
-            virErrorPreserveLast(&orig_err);
-            ignore_value(virNetDevBandwidthSet(net->ifname,
-                                               net->bandwidth,
-                                               false,
-                                               !virDomainNetTypeSharesHostView(net)));
-            if (net->bandwidth) {
-                ignore_value(virDomainNetBandwidthUpdate(net,
-                                                         net->bandwidth));
-+        } else {
-+            unsigned int bwflags = 0;
-+
-+            if (!virDomainNetTypeSharesHostView(net))
-+                bwflags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-+
-+            if (virNetDevBandwidthSet(net->ifname, newBandwidth, bwflags) < 0) {
-+                virErrorPtr orig_err;
-+
-+                virErrorPreserveLast(&orig_err);
-+                ignore_value(virNetDevBandwidthSet(net->ifname, net->bandwidth, bwflags));
-+                if (net->bandwidth)
-+                    ignore_value(virDomainNetBandwidthUpdate(net, net->bandwidth));
-+                virErrorRestore(&orig_err);
-+                goto endjob;
-             }
-            virErrorRestore(&orig_err);
-            goto endjob;
-         }
- 
-         /* If the old bandwidth was cleared out, restore qdisc. */
-diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
-index 7cb1800504..d5e7e99359 100644
--- a/src/qemu/qemu_hotplug.c
-+++ b/src/qemu/qemu_hotplug.c
-@@ -1279,9 +1279,14 @@ qemuDomainAttachNetDevice(virQEMUDriver *driver,
-                                                         vm->def->uuid,
-                                                         !virDomainNetTypeSharesHostView(net)) < 0)
-                     goto cleanup;
-            } else if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false,
-                                             !virDomainNetTypeSharesHostView(net)) < 0) {
-                goto cleanup;
-+            } else {
-+                int flags = 0;
-+
-+                if (!virDomainNetTypeSharesHostView(net))
-+                    flags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-+
-+                if (virNetDevBandwidthSet(net->ifname, actualBandwidth, flags) < 0)
-+                    goto cleanup;
-             }
-         } else {
-             VIR_WARN("setting bandwidth on interfaces of "
-@@ -4082,9 +4087,14 @@ qemuDomainChangeNet(virQEMUDriver *driver,
-                                                         vm->def->uuid,
-                                                         !virDomainNetTypeSharesHostView(newdev)) < 0)
-                     goto cleanup;
-            } else if (virNetDevBandwidthSet(newdev->ifname, newb, false,
-                                             !virDomainNetTypeSharesHostView(newdev)) < 0) {
-                goto cleanup;
-+            } else {
-+                int flags = 0;
-+
-+                if (!virDomainNetTypeSharesHostView(newdev))
-+                    flags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-+
-+                if (virNetDevBandwidthSet(newdev->ifname, newb, flags) < 0)
-+                    goto cleanup;
-             }
-         } else {
-             if (virDomainInterfaceClearQoS(vm->def, olddev) < 0)
-diff --git a/src/util/virnetdevbandwidth.c b/src/util/virnetdevbandwidth.c
-index 2b58c58d3e..1baad849c6 100644
--- a/src/util/virnetdevbandwidth.c
-+++ b/src/util/virnetdevbandwidth.c
-@@ -173,30 +173,35 @@ virNetDevBandwidthManipulateFilter(const char *ifname,
-  * virNetDevBandwidthSet:
-  * @ifname: on which interface
-  * @bandwidth: rates to set (may be NULL)
- * @hierarchical_class: whether to create hierarchical class
- * @swapped: true if IN/OUT should be set contrariwise
-+ * @flags: bits indicating certain optional actions
-  *
-+
-  * This function enables QoS on specified interface
-  * and set given traffic limits for both, incoming
- * and outgoing traffic. Any previous setting get
- * overwritten. If @hierarchical_class is TRUE, create
- * hierarchical class. It is used to guarantee minimal
- * throughput ('floor' attribute in NIC).
-+ * and outgoing traffic.
-+ *
-+ * @flags bits and their meanings:
-+ *
-+ *   VIR_NETDEV_BANDWIDTH_SET_HIERARCHICAL_CLASS
-+ *     whether to create a hierarchical class
-+ *     A hiearchical class structure is used to implement a minimal
-+ *     throughput guarantee ('floor' attribute in NIC).
-  *
- * If @swapped is set, the IN part of @bandwidth is set on
- * @ifname's TX, and vice versa. If it is not set, IN is set on
- * RX and OUT on TX. This is because for some types of interfaces
- * domain and the host live on the same side of the interface (so
- * domain's RX/TX is host's RX/TX), and for some it's swapped
- * (domain's RX/TX is hosts's TX/RX).
-+ *   VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED
-+ *     set if IN/OUT should be set backwards from what's indicated in
-+ *     the bandwidth, i.e. the IN part of @bandwidth is set on
-+ *     @ifname's TX, and the OUT part of @bandwidth is set on
-+ *     @ifname's RX.  This is needed because for some types of
-+ *     interfaces the domain and the host live on the same side of the
-+ *     interface (so domain's RX/TX is host's RX/TX), and for some
-+ *     it's swapped (domain's RX/TX is hosts's TX/RX).
-  *
-  * Return 0 on success, -1 otherwise.
-  */
- int
- virNetDevBandwidthSet(const char *ifname,
-                       const virNetDevBandwidth *bandwidth,
-                      bool hierarchical_class,
-                      bool swapped)
-+                      unsigned int flags)
- {
-     int ret = -1;
-     virNetDevBandwidthRate *rx = NULL; /* From domain POV */
-@@ -205,6 +210,7 @@ virNetDevBandwidthSet(const char *ifname,
-     char *average = NULL;
-     char *peak = NULL;
-     char *burst = NULL;
-+    bool hierarchical_class = flags & VIR_NETDEV_BANDWIDTH_SET_HIERARCHICAL_CLASS;
- 
-     if (!bandwidth) {
-         /* nothing to be enabled */
-@@ -224,7 +230,7 @@ virNetDevBandwidthSet(const char *ifname,
-         return -1;
-     }
- 
-    if (swapped) {
-+    if (flags & VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED) {
-         rx = bandwidth->out;
-         tx = bandwidth->in;
-     } else {
-diff --git a/src/util/virnetdevbandwidth.h b/src/util/virnetdevbandwidth.h
-index 6d268fb119..80dc654486 100644
--- a/src/util/virnetdevbandwidth.h
-+++ b/src/util/virnetdevbandwidth.h
-@@ -39,11 +39,16 @@ void virNetDevBandwidthFree(virNetDevBandwidth *def);
- 
- G_DEFINE_AUTOPTR_CLEANUP_FUNC(virNetDevBandwidth, virNetDevBandwidthFree);
- 
-+typedef enum {
-+    VIR_NETDEV_BANDWIDTH_SET_HIERARCHICAL_CLASS = (1 << 0),
-+    VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED = (1 << 1),
-+} virNetDevBandwidthSetFlags;
-+
- int virNetDevBandwidthSet(const char *ifname,
-                           const virNetDevBandwidth *bandwidth,
-                          bool hierarchical_class,
-                          bool swapped)
-+                          unsigned int flags)
-     G_GNUC_WARN_UNUSED_RESULT;
-+
- int virNetDevBandwidthClear(const char *ifname);
- int virNetDevBandwidthCopy(virNetDevBandwidth **dest,
-                            const virNetDevBandwidth *src)
-diff --git a/tests/virnetdevbandwidthtest.c b/tests/virnetdevbandwidthtest.c
-index f7c38faa2e..6529ff4026 100644
--- a/tests/virnetdevbandwidthtest.c
-+++ b/tests/virnetdevbandwidthtest.c
-@@ -82,8 +82,14 @@ testVirNetDevBandwidthSet(const void *data)
-         if (virNetDevOpenvswitchInterfaceSetQos(iface, band, info->uuid, true) < 0)
-             return -1;
-     } else {
-+        unsigned int flags = VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-+
-+        if (info->hierarchical_class)
-+            flags |= VIR_NETDEV_BANDWIDTH_SET_HIERARCHICAL_CLASS;
-+
-         exp_cmd = info->exp_cmd_tc;
-        if (virNetDevBandwidthSet(iface, band, info->hierarchical_class, true) < 0)
-+
-+        if (virNetDevBandwidthSet(iface, band, flags) < 0)
-             return -1;
-     }
- 
-- 
-2.47.1
-
@@ -0,0 +1,43 @@
+From: Jim Fehlig <jfehlig@suse.com>
+Date: Fri, 3 Apr 2020 15:51:48 -0600
+Subject: [PATCH] libxl: fix crash when initializing driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Commit 54a401af478 split out DriverConfigInit from DriverConfigNew, but
+then called it a bit late from libxlStateInitialize. The cfg is used in
+libxlDriverConfigLoadFile and when uninitialized results in a crash.
+Calling DriverConfigInit immediately after DriverConfigNew fixes the
+crash.
+
+Signed-off-by: Jim Fehlig <jfehlig@suse.com>
+Reviewed-by: Erik Skultety <eskultet@redhat.com>
+Reviewed-by: Ján Tomko <jtomko@redhat.com>
+(cherry picked from commit 88011ed280c4f946a7b8e7ffcea2335eb075de60)
+---
+ src/libxl/libxl_driver.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
+index f2387e2a20..c4fb791fa0 100644
+--- a/src/libxl/libxl_driver.c
+++ b/src/libxl/libxl_driver.c
+@@ -703,14 +703,14 @@ libxlStateInitialize(bool privileged,
+     if (!(cfg = libxlDriverConfigNew()))
+         goto error;
+ 
+    if (libxlDriverConfigInit(cfg) < 0)
+        goto error;
+
+     driverConf = g_strdup_printf("%s/libxl.conf", cfg->configBaseDir);
+ 
+     if (libxlDriverConfigLoadFile(cfg, driverConf) < 0)
+         goto error;
+ 
+-    if (libxlDriverConfigInit(cfg) < 0)
+-        goto error;
+-
+     /* Register the callbacks providing access to libvirt's event loop */
+     libxl_osevent_register_hooks(cfg->ctx, &libxl_osevent_callbacks, cfg->ctx);
+ 
@@ -1,185 +0,0 @@
-From 490f58382dca2a415a5f16b6133f298d853bb379 Mon Sep 17 00:00:00 2001
-From: Laine Stump <laine@redhat.com>
-Date: Mon, 25 Nov 2024 22:24:45 -0500
-Subject: [PATCH 5/9] util: make it optional to clear existing tc
- qdiscs/filters in virNetDevBandwidthSet()
-
-virNetDevBandwidthSet() always clears all existing qdiscs and their
-subordinate filters before adding all the new qdiscs/filters. This is
-normally exactly what we want, but there is one case (the network
-driver) where the Qdisc added by virNetDevBandwidthSet() may already
-be in use by the nftables backend (which will add a rule to fix the
-checksum of dhcp packets); in that case, we *don't* want
-virNetDevBandwidthSet() to clear out the qdisc that was already added
-for nftables, and none of the bandwidth filters have been added yet,
-so there already aren't any "old" filters that need to be removed
-either - it is safe to just skip virNetDevBandwidthClear() in this
-case.
-
-To allow the network driver to set bandwidth without first clearing
-it, this patch adds the flag VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL to the
-virNetDevBandwidthSetFlags enum, and recognizes it in
-virNetDevBandwidthSet() - if the flag is set, then
-virNetDevBandwidth() will call virNetDevBandwidthClear() just as it
-always has. But if the flag isn't set it *won't* call
-virNetDevBandwidthClear().
-
-As suggested above, VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL is set for all
-calls to virNetdevBandwidthSet() except for two places in the network
-driver.
-
-Signed-off-by: Laine Stump <laine@redhat.com>
-Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---
- src/lxc/lxc_driver.c           |  2 +-
- src/lxc/lxc_process.c          |  2 +-
- src/qemu/qemu_command.c        |  2 +-
- src/qemu/qemu_driver.c         |  2 +-
- src/qemu/qemu_hotplug.c        |  4 ++--
- src/util/virnetdevbandwidth.c  | 21 ++++++++++++++++++++-
- src/util/virnetdevbandwidth.h  |  1 +
- tests/virnetdevbandwidthtest.c |  3 ++-
- 8 files changed, 29 insertions(+), 8 deletions(-)
-
-diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
-index b693980dbb..81581c74df 100644
--- a/src/lxc/lxc_driver.c
-+++ b/src/lxc/lxc_driver.c
-@@ -3570,7 +3570,7 @@ lxcDomainAttachDeviceNetLive(virLXCDriver *driver,
-     actualBandwidth = virDomainNetGetActualBandwidth(net);
-     if (actualBandwidth) {
-         if (virNetDevSupportsBandwidth(actualType)) {
-            unsigned int flags = 0;
-+            unsigned int flags = VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL;
- 
-             if (!virDomainNetTypeSharesHostView(net))
-                 flags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c
-index 0e689fbb70..081ce03a57 100644
--- a/src/lxc/lxc_process.c
-+++ b/src/lxc/lxc_process.c
-@@ -605,7 +605,7 @@ virLXCProcessSetupInterfaces(virLXCDriver *driver,
-         actualBandwidth = virDomainNetGetActualBandwidth(net);
-         if (actualBandwidth) {
-             if (virNetDevSupportsBandwidth(type)) {
-                unsigned int flags = 0;
-+                unsigned int flags = VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL;
- 
-                 if (!virDomainNetTypeSharesHostView(net))
-                     flags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
-index b4815e5e71..ed54fd4c5b 100644
--- a/src/qemu/qemu_command.c
-+++ b/src/qemu/qemu_command.c
-@@ -8841,7 +8841,7 @@ qemuBuildInterfaceCommandLine(virQEMUDriver *driver,
-                                                         !virDomainNetTypeSharesHostView(net)) < 0)
-                     goto cleanup;
-             } else {
-                unsigned int flags = 0;
-+                unsigned int flags = VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL;
- 
-                 if (!virDomainNetTypeSharesHostView(net))
-                     flags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
-index 14929616e5..9549065b1f 100644
--- a/src/qemu/qemu_driver.c
-+++ b/src/qemu/qemu_driver.c
-@@ -9942,7 +9942,7 @@ qemuDomainSetInterfaceParameters(virDomainPtr dom,
-                 goto endjob;
-             }
-         } else {
-            unsigned int bwflags = 0;
-+            unsigned int bwflags = VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL;
- 
-             if (!virDomainNetTypeSharesHostView(net))
-                 bwflags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
-index d5e7e99359..ceda4119cd 100644
--- a/src/qemu/qemu_hotplug.c
-+++ b/src/qemu/qemu_hotplug.c
-@@ -1280,7 +1280,7 @@ qemuDomainAttachNetDevice(virQEMUDriver *driver,
-                                                         !virDomainNetTypeSharesHostView(net)) < 0)
-                     goto cleanup;
-             } else {
-                int flags = 0;
-+                int flags = VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL;
- 
-                 if (!virDomainNetTypeSharesHostView(net))
-                     flags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-@@ -4088,7 +4088,7 @@ qemuDomainChangeNet(virQEMUDriver *driver,
-                                                         !virDomainNetTypeSharesHostView(newdev)) < 0)
-                     goto cleanup;
-             } else {
-                int flags = 0;
-+                int flags = VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL;
- 
-                 if (!virDomainNetTypeSharesHostView(newdev))
-                     flags |= VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-diff --git a/src/util/virnetdevbandwidth.c b/src/util/virnetdevbandwidth.c
-index 1baad849c6..9c48844c5d 100644
--- a/src/util/virnetdevbandwidth.c
-+++ b/src/util/virnetdevbandwidth.c
-@@ -196,6 +196,21 @@ virNetDevBandwidthManipulateFilter(const char *ifname,
-  *     interface (so domain's RX/TX is host's RX/TX), and for some
-  *     it's swapped (domain's RX/TX is hosts's TX/RX).
-  *
-+ *   VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL
-+ *     If VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL is set, then the root
-+ *     qdisc is deleted before adding any new qdisc/class/filter,
-+ *     which causes any pre-existing filters to also be deleted. If
-+ *     not set, then it's assumed that there are no existing rules (or
-+ *     that those already there need to be kept). The caller should
-+ *     set this flag for an existing interface that is having its
-+ *     bandwidth settings modified, but can leave it unset if the
-+ *     interface was newly created and this is the first time
-+ *     bandwidth has been set, but someone else might have already
-+ *     added the qdisc (e.g. this is the case when the network driver
-+ *     is setting bandwidth for a virtual network bridge device - the
-+ *     nftables backend may have already added qdisc handle 1:0 and a
-+ *     filter, and we don't want to delete them)
-+ *
-  * Return 0 on success, -1 otherwise.
-  */
- int
-@@ -238,7 +253,11 @@ virNetDevBandwidthSet(const char *ifname,
-         tx = bandwidth->out;
-     }
- 
-    virNetDevBandwidthClear(ifname);
-+    /* Only if the caller requests, clear everything including root
-+     * qdisc and all filters before adding everything.
-+     */
-+    if (flags & VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL)
-+        virNetDevBandwidthClear(ifname);
- 
-     if (tx && tx->average) {
-         average = g_strdup_printf("%llukbps", tx->average);
-diff --git a/src/util/virnetdevbandwidth.h b/src/util/virnetdevbandwidth.h
-index 80dc654486..744aa4c826 100644
--- a/src/util/virnetdevbandwidth.h
-+++ b/src/util/virnetdevbandwidth.h
-@@ -42,6 +42,7 @@ G_DEFINE_AUTOPTR_CLEANUP_FUNC(virNetDevBandwidth, virNetDevBandwidthFree);
- typedef enum {
-     VIR_NETDEV_BANDWIDTH_SET_HIERARCHICAL_CLASS = (1 << 0),
-     VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED = (1 << 1),
-+    VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL = (1 << 2),
- } virNetDevBandwidthSetFlags;
- 
- int virNetDevBandwidthSet(const char *ifname,
-diff --git a/tests/virnetdevbandwidthtest.c b/tests/virnetdevbandwidthtest.c
-index 6529ff4026..6d5c847ad7 100644
--- a/tests/virnetdevbandwidthtest.c
-+++ b/tests/virnetdevbandwidthtest.c
-@@ -82,7 +82,8 @@ testVirNetDevBandwidthSet(const void *data)
-         if (virNetDevOpenvswitchInterfaceSetQos(iface, band, info->uuid, true) < 0)
-             return -1;
-     } else {
-        unsigned int flags = VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED;
-+        unsigned int flags = VIR_NETDEV_BANDWIDTH_SET_DIR_SWAPPED |
-+                             VIR_NETDEV_BANDWIDTH_SET_CLEAR_ALL;
- 
-         if (info->hierarchical_class)
-             flags |= VIR_NETDEV_BANDWIDTH_SET_HIERARCHICAL_CLASS;
-- 
-2.47.1
-
@@ -1,98 +0,0 @@
-From faebbbbfa3b1bd4120852b3f416c8073ab82d5c5 Mon Sep 17 00:00:00 2001
-From: Laine Stump <laine@redhat.com>
-Date: Mon, 25 Nov 2024 22:24:46 -0500
-Subject: [PATCH 6/9] util: put the command that adds a tx filter qdisc into a
- separate function
-
-virNetDevBandwidthSet() adds a queue discipline (qdisc) for each
-interface that it will need to add tc transmit filters to, and the
-filters are then attached to the qdisc.
-
-There are other circumstances where some other function will need to
-add tc transmit filters to an interface (in particular an upcoming
-patch to the network driver nftables backend that will use a tc tx
-filter to fix the checksum of dhcp packets), so that function will
-also need a qdisc for the tx filter. To assure both always use exactly
-the same qdisc, this patch puts the command that adds the tx filter
-qdisc into a separate helper function that can (and will) be called
-from either place
-
-Signed-off-by: Laine Stump <laine@redhat.com>
-Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---
- src/libvirt_private.syms      |  1 +
- src/util/virnetdevbandwidth.c | 30 +++++++++++++++++++++++++-----
- src/util/virnetdevbandwidth.h |  3 +++
- 3 files changed, 29 insertions(+), 5 deletions(-)
-
-diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
-index d15d6a6a9d..0211cee967 100644
--- a/src/libvirt_private.syms
-+++ b/src/libvirt_private.syms
-@@ -2859,6 +2859,7 @@ virNetDevVFInterfaceStats;
- 
- 
- # util/virnetdevbandwidth.h
-+virNetDevBandWidthAddTxFilterParentQdisc;
- virNetDevBandwidthClear;
- virNetDevBandwidthCopy;
- virNetDevBandwidthEqual;
-diff --git a/src/util/virnetdevbandwidth.c b/src/util/virnetdevbandwidth.c
-index 9c48844c5d..90eebe6576 100644
--- a/src/util/virnetdevbandwidth.c
-+++ b/src/util/virnetdevbandwidth.c
-@@ -266,11 +266,7 @@ virNetDevBandwidthSet(const char *ifname,
-         if (tx->burst)
-             burst = g_strdup_printf("%llukb", tx->burst);
- 
-        cmd = virCommandNew(TC);
-        virCommandAddArgList(cmd, "qdisc", "add", "dev", ifname, "root",
-                             "handle", "1:", "htb", "default",
-                             hierarchical_class ? "2" : "1", NULL);
-        if (virCommandRun(cmd, NULL) < 0)
-+        if (virNetDevBandWidthAddTxFilterParentQdisc(ifname, hierarchical_class) < 0)
-             goto cleanup;
- 
-         /* If we are creating a hierarchical class, all non guaranteed traffic
-@@ -794,3 +790,27 @@ virNetDevBandwidthSetRootQDisc(const char *ifname,
- 
-     return 0;
- }
-+
-+/**
-+ * virNetDevBandwidthAddTxFilterParentQdisc:
-+ * @ifname: name of interface that needs a qdisc to attach tx filters to
-+ * @hierarchical_class: true if hierarchical classes will be used on this interface
-+ *
-+ * Add a root Qdisc (Queueing Discipline) for attaching Tx filters to
-+ * @ifname.
-+ *
-+ * returns 0 on success, -1 on failure
-+ */
-+int
-+virNetDevBandWidthAddTxFilterParentQdisc(const char *ifname,
-+                                         bool hierarchical_class)
-+{
-+    g_autoptr(virCommand) cmd = NULL;
-+
-+    cmd = virCommandNew(TC);
-+    virCommandAddArgList(cmd, "qdisc", "add", "dev", ifname, "root",
-+                         "handle", "1:", "htb", "default",
-+                         hierarchical_class ? "2" : "1", NULL);
-+
-+    return virCommandRun(cmd, NULL);
-+}
-diff --git a/src/util/virnetdevbandwidth.h b/src/util/virnetdevbandwidth.h
-index 744aa4c826..65c1500637 100644
--- a/src/util/virnetdevbandwidth.h
-+++ b/src/util/virnetdevbandwidth.h
-@@ -84,3 +84,6 @@ int virNetDevBandwidthUpdateFilter(const char *ifname,
- int virNetDevBandwidthSetRootQDisc(const char *ifname,
-                                    const char *qdisc)
-     G_NO_INLINE;
-+
-+int virNetDevBandWidthAddTxFilterParentQdisc(const char *ifname,
-+                                             bool hierarchical_class);
-- 
-2.47.1
-
@@ -1,107 +0,0 @@
-From 73c0fb19ce5b816ee81ede691252855c75391c9a Mon Sep 17 00:00:00 2001
-From: Laine Stump <laine@redhat.com>
-Date: Mon, 25 Nov 2024 22:24:47 -0500
-Subject: [PATCH 7/9] util: don't re-add the qdisc used for tx filters if it
- already exists
-
-There will soon be two separate users of tc on virtual networks, and
-both will use the "qdisc root handle 1: htb" to add tx filters. One or the
-other could get the first chance to add the qdisc, and then if at a
-later time the other decides to use it, we need to prevent the 2nd
-user from attempting to re-add the qdisc (because that just generates
-an error).
-
-We do this by running "tc qdisc show dev $bridge handle 1:" then
-checking if the output of that command contains both "qdisc" and " 1:
-".[*] If it does then the qdisc has already been added. If not then we
-need to add it now.
-
-[*]As of this writing, the output more exactly starts with "qdisc
-htb 1: root", but our comparison is made purposefully generous to
-increase the chances that it will continue to work properly if tc
-modifies the format of its output.
-
-Signed-off-by: Laine Stump <laine@redhat.com>
-Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---
- src/util/virnetdevbandwidth.c  | 35 ++++++++++++++++++++++++++++------
- tests/virnetdevbandwidthtest.c |  3 +++
- 2 files changed, 32 insertions(+), 6 deletions(-)
-
-diff --git a/src/util/virnetdevbandwidth.c b/src/util/virnetdevbandwidth.c
-index 90eebe6576..5c6a65528c 100644
--- a/src/util/virnetdevbandwidth.c
-+++ b/src/util/virnetdevbandwidth.c
-@@ -805,12 +805,35 @@ int
- virNetDevBandWidthAddTxFilterParentQdisc(const char *ifname,
-                                          bool hierarchical_class)
- {
-    g_autoptr(virCommand) cmd = NULL;
-+    g_autoptr(virCommand) testCmd = NULL;
-+    g_autofree char *testResult = NULL;
- 
-    cmd = virCommandNew(TC);
-    virCommandAddArgList(cmd, "qdisc", "add", "dev", ifname, "root",
-                         "handle", "1:", "htb", "default",
-                         hierarchical_class ? "2" : "1", NULL);
-+    /* first check it the qdisc with handle 1: was already added for
-+     * this interface by someone else
-+     */
-+    testCmd = virCommandNew(TC);
-+    virCommandAddArgList(testCmd, "qdisc", "show", "dev", ifname,
-+                         "handle", "1:", NULL);
-+    virCommandSetOutputBuffer(testCmd, &testResult);
- 
-    return virCommandRun(cmd, NULL);
-+    if (virCommandRun(testCmd, NULL) < 0)
-+        return -1;
-+
-+    /* output will be something like: "qdisc htb 1: root refcnt ..."
-+     * if the qdisc was already added. We just search for "qdisc" and
-+     * " 1: " anywhere in the output to allow for tc changing its
-+     * output format.
-+     */
-+    if (!(testResult && strstr(testResult, "qdisc") && strstr(testResult, " 1: "))) {
-+        /* didn't find qdisc in output, so we need to add one */
-+        g_autoptr(virCommand) addCmd = virCommandNew(TC);
-+
-+        virCommandAddArgList(addCmd, "qdisc", "add", "dev", ifname, "root",
-+                             "handle", "1:", "htb", "default",
-+                             hierarchical_class ? "2" : "1", NULL);
-+
-+        return virCommandRun(addCmd, NULL);
-+    }
-+
-+    return 0;
- }
-diff --git a/tests/virnetdevbandwidthtest.c b/tests/virnetdevbandwidthtest.c
-index 6d5c847ad7..31aa7f469d 100644
--- a/tests/virnetdevbandwidthtest.c
-+++ b/tests/virnetdevbandwidthtest.c
-@@ -147,6 +147,7 @@ mymain(void)
-                 "</bandwidth>",
-                 TC " qdisc del dev eth0 root\n"
-                 TC " qdisc del dev eth0 ingress\n"
-+                TC " qdisc show dev eth0 handle 1:\n"
-                 TC " qdisc add dev eth0 root handle 1: htb default 1\n"
-                 TC " class add dev eth0 parent 1: classid 1:1 htb rate 1024kbps quantum 87\n"
-                 TC " qdisc add dev eth0 parent 1:1 handle 2: sfq perturb 10\n"
-@@ -177,6 +178,7 @@ mymain(void)
-                 "</bandwidth>",
-                 TC " qdisc del dev eth0 root\n"
-                 TC " qdisc del dev eth0 ingress\n"
-+                TC " qdisc show dev eth0 handle 1:\n"
-                 TC " qdisc add dev eth0 root handle 1: htb default 1\n"
-                 TC " class add dev eth0 parent 1: classid 1:1 htb rate 1kbps ceil 2kbps burst 4kb quantum 1\n"
-                 TC " qdisc add dev eth0 parent 1:1 handle 2: sfq perturb 10\n"
-@@ -199,6 +201,7 @@ mymain(void)
-                 "</bandwidth>",
-                 TC " qdisc del dev eth0 root\n"
-                 TC " qdisc del dev eth0 ingress\n"
-+                TC " qdisc show dev eth0 handle 1:\n"
-                 TC " qdisc add dev eth0 root handle 1: htb default 1\n"
-                 TC " class add dev eth0 parent 1: classid 1:1 htb rate 4294967295kbps quantum 366503875\n"
-                 TC " qdisc add dev eth0 parent 1:1 handle 2: sfq perturb 10\n"
-- 
-2.47.1
-
@@ -1,171 +0,0 @@
-From dac9cb9030ac03d18f59884864a0a253e3c9f8f1 Mon Sep 17 00:00:00 2001
-From: Laine Stump <laine@redhat.com>
-Date: Mon, 25 Nov 2024 22:24:48 -0500
-Subject: [PATCH 8/9] util: add new "tc" layer for virFirewallCmd objects
-
-If the layer of a virFirewallCmd is "tc", then the "tc" utility will
-be executed using the arguments that had been added to the
-virFirewallCmd
-
-tc layer doesn't support auto-rollback command creation (any rollback
-needs to be added manually with virFirewallAddRollbackCmd()), and also
-tc layer isn't supported by the iptables backend (it would have been
-straightforward to add, but the iptables backend doesn't need it, and
-I didn't want to take the chance of causing a regression in that
-code for no good reason).
-
-Signed-off-by: Laine Stump <laine@redhat.com>
-Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
-Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---
- src/network/network_nftables.c |  1 +
- src/util/virfirewall.c         | 66 +++++++++++++++++++++-------------
- src/util/virfirewall.h         |  1 +
- src/util/virfirewalld.c        |  1 +
- 4 files changed, 44 insertions(+), 25 deletions(-)
-
-diff --git a/src/network/network_nftables.c b/src/network/network_nftables.c
-index 268d1f12ca..cc184105c3 100644
--- a/src/network/network_nftables.c
-+++ b/src/network/network_nftables.c
-@@ -73,6 +73,7 @@ VIR_ENUM_IMPL(nftablesLayer,
-               "",
-               "ip",
-               "ip6",
-+              "",
- );
- 
- 
-diff --git a/src/util/virfirewall.c b/src/util/virfirewall.c
-index 811b787ecc..9389bcf541 100644
--- a/src/util/virfirewall.c
-+++ b/src/util/virfirewall.c
-@@ -47,6 +47,7 @@ VIR_ENUM_IMPL(virFirewallLayer,
-               "ethernet",
-               "ipv4",
-               "ipv6",
-+              "tc",
- );
- 
- typedef struct _virFirewallGroup virFirewallGroup;
-@@ -57,6 +58,7 @@ VIR_ENUM_IMPL(virFirewallLayerCommand,
-               EBTABLES,
-               IPTABLES,
-               IP6TABLES,
-+              TC,
- );
- 
- struct _virFirewallCmd {
-@@ -591,6 +593,7 @@ virFirewallCmdIptablesApply(virFirewall *firewall,
-     case VIR_FIREWALL_LAYER_IPV6:
-         virCommandAddArg(cmd, "-w");
-         break;
-+    case VIR_FIREWALL_LAYER_TC:
-     case VIR_FIREWALL_LAYER_LAST:
-         break;
-     }
-@@ -672,39 +675,52 @@ virFirewallCmdNftablesApply(virFirewall *firewall G_GNUC_UNUSED,
-     size_t i;
-     int status;
- 
-    cmd = virCommandNew(NFT);
-+    if (fwCmd->layer == VIR_FIREWALL_LAYER_TC) {
- 
-    if ((virFirewallTransactionGetFlags(firewall) & VIR_FIREWALL_TRANSACTION_AUTO_ROLLBACK) &&
-        fwCmd->argsLen > 1) {
-        /* skip any leading options to get to command verb */
-        for (i = 0; i < fwCmd->argsLen - 1; i++) {
-            if (fwCmd->args[i][0] != '-')
-                break;
-        }
-+        /* for VIR_FIREWALL_LAYER_TC, we run the 'tc' (traffic control) command with
-+         * the supplied args.
-+         */
-+        cmd = virCommandNew(TC);
- 
-        if (i + 1 < fwCmd->argsLen &&
-            VIR_NFTABLES_ARG_IS_CREATE(fwCmd->args[i])) {
-+        /* NB: RAW commands don't support auto-rollback command creation */
- 
-            cmdIdx = i;
-            objectType = fwCmd->args[i + 1];
-+    } else {
- 
-            /* we currently only handle auto-rollback for rules,
-             * chains, and tables, and those all can be "rolled
-             * back" by a delete command using the handle that is
-             * returned when "-ae" is added to the add/insert
-             * command.
-             */
-            if (STREQ_NULLABLE(objectType, "rule") ||
-                STREQ_NULLABLE(objectType, "chain") ||
-                STREQ_NULLABLE(objectType, "table")) {
-+        cmd = virCommandNew(NFT);
- 
-                needRollback = true;
-                /* this option to nft instructs it to add the
-                 * "handle" of the created object to stdout
-+        if ((virFirewallTransactionGetFlags(firewall) & VIR_FIREWALL_TRANSACTION_AUTO_ROLLBACK) &&
-+            fwCmd->argsLen > 1) {
-+            /* skip any leading options to get to command verb */
-+            for (i = 0; i < fwCmd->argsLen - 1; i++) {
-+                if (fwCmd->args[i][0] != '-')
-+                    break;
-+            }
-+
-+            if (i + 1 < fwCmd->argsLen &&
-+                VIR_NFTABLES_ARG_IS_CREATE(fwCmd->args[i])) {
-+
-+                cmdIdx = i;
-+                objectType = fwCmd->args[i + 1];
-+
-+                /* we currently only handle auto-rollback for rules,
-+                 * chains, and tables, and those all can be "rolled
-+                 * back" by a delete command using the handle that is
-+                 * returned when "-ae" is added to the add/insert
-+                 * command.
-                  */
-                virCommandAddArg(cmd, "-ae");
-+                if (STREQ_NULLABLE(objectType, "rule") ||
-+                    STREQ_NULLABLE(objectType, "chain") ||
-+                    STREQ_NULLABLE(objectType, "table")) {
-+
-+                    needRollback = true;
-+                    /* this option to nft instructs it to add the
-+                     * "handle" of the created object to stdout
-+                     */
-+                    virCommandAddArg(cmd, "-ae");
-+                }
-             }
-         }
-+
-     }
- 
-     for (i = 0; i < fwCmd->argsLen; i++)
-diff --git a/src/util/virfirewall.h b/src/util/virfirewall.h
-index bce51259d2..d42e60884b 100644
--- a/src/util/virfirewall.h
-+++ b/src/util/virfirewall.h
-@@ -39,6 +39,7 @@ typedef enum {
-     VIR_FIREWALL_LAYER_ETHERNET,
-     VIR_FIREWALL_LAYER_IPV4,
-     VIR_FIREWALL_LAYER_IPV6,
-+    VIR_FIREWALL_LAYER_TC,
- 
-     VIR_FIREWALL_LAYER_LAST,
- } virFirewallLayer;
-diff --git a/src/util/virfirewalld.c b/src/util/virfirewalld.c
-index 827e201dbb..124523c420 100644
--- a/src/util/virfirewalld.c
-+++ b/src/util/virfirewalld.c
-@@ -43,6 +43,7 @@ VIR_LOG_INIT("util.firewalld");
- VIR_ENUM_DECL(virFirewallLayerFirewallD);
- VIR_ENUM_IMPL(virFirewallLayerFirewallD,
-               VIR_FIREWALL_LAYER_LAST,
-+              "",
-               "eb",
-               "ipv4",
-               "ipv6",
-- 
-2.47.1
-
@@ -1,687 +0,0 @@
-From b1e2318a0d609fcdff04fcf88953ea87cdd02b95 Mon Sep 17 00:00:00 2001
-From: Laine Stump <laine@redhat.com>
-Date: Mon, 25 Nov 2024 22:24:49 -0500
-Subject: [PATCH 9/9] network: add tc filter rule to nftables backend to fix
- checksum of DHCP responses
-
-Please see the commit log for commit v10.9.0-rc1-1-g42ab0148dd for the
-history and explanation of the problem that this patch is fixing.
-
-A shorter explanation is that when a guest is connected to a libvirt
-virtual network using a virtio-net adapter with in-kernel "vhost-net"
-packet processing enabled, it will fail to acquire an IP address from
-a DHCP seever running on the host.
-
-In commit v10.9.0-rc1-1-g42ab0148dd we tried fixing this by *zeroing
-out* the checksums of these packets with an nftables rule (nftables
-can't recompute the checksum, but it can set it to 0) . This
-*appeared* to work initially, but it turned out that zeroing the
-checksum ends up breaking dhcp packets on *non* virtio/vhost-net guest
-interfaces. That attempt was reverted in commit v10.9.0-rc2.
-
-Fortunately, there is an existing way to recompute the checksum of a
-packet as it leaves an interface - the "tc" (traffic control) utility
-that libvirt already uses for bandwidth management. This patch uses a
-tc filter rule to match dhcp response packets on the bridge and
-recompute their checksum.
-
-The filter rule must be attached to a tc qdisc, which may also have a
-filter attached for bandwidth management (in the <bandwidth> element
-of the network config). Not only must we add the qdisc only once
-(which was already handled by the patch two prior to this one), but
-also the filter rule for checksum fixing and the filter rule for
-bandwidth management must be different priorities so they don't clash;
-this is solved by adding the checksum-fix filter with "priority 2",
-while the bandwidth management filter remains "priority 1" (both will
-always be evaluated anyway, it's just a matter of which is evaluated
-first).
-
-So far this method has worked with every different guest we could
-throw at it, including several that failed with the previous method.
-
-Fixes: b89c4991daa0ee9371f10937fab3b03c5ffdabc6
-Reported-by: Rich Jones <rjones@redhat.com>
-Reported-by: Andrea Bolognani <abologna@redhat.com>
-Fix-Suggested-by: Eric Garver <egarver@redhat.com>
-Fix-Suggested-by: Phil Sutter <psutter@redhat.com>
-Signed-off-by: Laine Stump <laine@redhat.com>
-Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---
- src/network/network_nftables.c                | 68 +++++++++++++++++++
- .../forward-dev-linux.nftables                | 40 +++++++++++
- .../isolated-linux.nftables                   | 40 +++++++++++
- .../nat-default-linux.nftables                | 40 +++++++++++
- .../nat-ipv6-linux.nftables                   | 40 +++++++++++
- .../nat-ipv6-masquerade-linux.nftables        | 40 +++++++++++
- .../nat-many-ips-linux.nftables               | 40 +++++++++++
- .../nat-no-dhcp-linux.nftables                | 40 +++++++++++
- .../nat-port-range-ipv6-linux.nftables        | 40 +++++++++++
- .../nat-port-range-linux.nftables             | 40 +++++++++++
- .../nat-tftp-linux.nftables                   | 40 +++++++++++
- .../route-default-linux.nftables              | 40 +++++++++++
- 12 files changed, 508 insertions(+)
-
-diff --git a/src/network/network_nftables.c b/src/network/network_nftables.c
-index cc184105c3..748edb0273 100644
--- a/src/network/network_nftables.c
-+++ b/src/network/network_nftables.c
-@@ -29,6 +29,7 @@
- 
- #include "internal.h"
- #include "virfirewalld.h"
-+#include "vircommand.h"
- #include "virerror.h"
- #include "virlog.h"
- #include "virhash.h"
-@@ -924,6 +925,67 @@ nftablesAddIPSpecificFirewallRules(virFirewall *fw,
- }
- 
- 
-+/**
-+ * nftablesAddUdpChecksumFixWithTC:
-+ *
-+ * Add a tc filter rule to @ifname (the bridge device of this network)
-+ * that will recompute the checksum of udp packets output from @iface with
-+ * destination port @port.
-+ *
-+ * Normally the checksum should be filled by some part of the basic
-+ * network stack, but there are cases (e.g. DHCP response packets sent
-+ * from virtualization host to a QEMU guest when the guest NIC uses
-+ * vhost-net packet processing) when the host (sender) thinks that
-+ * packet checksums will be computed elsewhere (and so leaves a
-+ * partially computed checksum in the packet header) while the guest
-+ * (receiver) thinks that the checksum has already been fully
-+ * computed; in the meantime none of the code in between has actually
-+ * finished computing the checksum.
-+ *
-+ * An example of this is DHCP response packets from host to guest. If
-+ * the checksum of each of these packets isn't properly computed, then
-+ * many guests (e.g. FreeBSD) will drop them with reason BAD CHECKSUM;
-+ * this tc filter rule will fix the ip and udp checksums, and the
-+ * FreeBSD dhcp client will happily accept the packet.
-+ *
-+ * (NB: if you're wondering how the tc qdisc and filter are removed
-+ * when the network is destroyed, the answer is that the kernel
-+ * automatically (and properly) removes them for us, so we don't need
-+ * to worry about keeping track/deleting as we do with nftables rules)
-+ */
-+static int
-+nftablesAddUdpChecksumFixWithTC(virFirewall *fw,
-+                                const char *iface,
-+                                int port)
-+{
-+    g_autofree char *portstr = g_strdup_printf("%d", port);
-+
-+    /* this will add the qdisc (that the filter below is attached to)
-+     * unless it already exists
-+     */
-+    if (virNetDevBandWidthAddTxFilterParentQdisc(iface, true) < 0)
-+        return -1;
-+
-+    /* add a filter to catch all udp packets with dst "port" and
-+     * recompute their checksum
-+     */
-+    virFirewallAddCmd(fw, VIR_FIREWALL_LAYER_TC,
-+                      "filter", "add", "dev", iface,
-+                      "prio", "2", "protocol", "ip", "parent", "1:",
-+                      "u32", "match", "ip", "dport", portstr, "ffff",
-+                      "action", "csum", "ip", "and", "udp",
-+                      NULL);
-+
-+    virFirewallAddRollbackCmd(fw, VIR_FIREWALL_LAYER_TC,
-+                              "filter", "del", "dev", iface,
-+                              "prio", "2", "protocol", "ip", "parent", "1:",
-+                              "u32", "match", "ip", "dport", portstr, "ffff",
-+                              "action", "csum", "ip", "and", "udp",
-+                              NULL);
-+    return 0;
-+}
-+
-+
- /* nftablesAddFirewallrules:
-  *
-  * @def - the network that needs an nftables firewall added
-@@ -944,6 +1006,12 @@ nftablesAddFirewallRules(virNetworkDef *def, virFirewall **fwRemoval)
- 
-     virFirewallStartTransaction(fw, VIR_FIREWALL_TRANSACTION_AUTO_ROLLBACK);
- 
-+    /* add the tc filter rule needed to fixup the checksum of dhcp
-+     * response packets going from host to guest.
-+     */
-+    if (nftablesAddUdpChecksumFixWithTC(fw, def->bridge, 68) < 0)
-+        return -1;
-+
-     nftablesAddGeneralFirewallRules(fw, def);
- 
-     for (i = 0;
-diff --git a/tests/networkxml2firewalldata/forward-dev-linux.nftables b/tests/networkxml2firewalldata/forward-dev-linux.nftables
-index 8badb74beb..6772383b37 100644
--- a/tests/networkxml2firewalldata/forward-dev-linux.nftables
-+++ b/tests/networkxml2firewalldata/forward-dev-linux.nftables
-@@ -1,3 +1,43 @@
-+tc \
-+qdisc \
-+show \
-+dev \
-+virbr0 \
-+handle \
-+1:
-+tc \
-+qdisc \
-+add \
-+dev \
-+virbr0 \
-+root \
-+handle \
-+1: \
-+htb \
-+default \
-+2
-+tc \
-+filter \
-+add \
-+dev \
-+virbr0 \
-+prio \
-+2 \
-+protocol \
-+ip \
-+parent \
-+1: \
-+u32 \
-+match \
-+ip \
-+dport \
-+68 \
-+ffff \
-+action \
-+csum \
-+ip \
-+and \
-+udp
- nft \
- -ae insert \
- rule \
-diff --git a/tests/networkxml2firewalldata/isolated-linux.nftables b/tests/networkxml2firewalldata/isolated-linux.nftables
-index d1b4dac178..546a18b75a 100644
--- a/tests/networkxml2firewalldata/isolated-linux.nftables
-+++ b/tests/networkxml2firewalldata/isolated-linux.nftables
-@@ -1,3 +1,43 @@
-+tc \
-+qdisc \
-+show \
-+dev \
-+virbr0 \
-+handle \
-+1:
-+tc \
-+qdisc \
-+add \
-+dev \
-+virbr0 \
-+root \
-+handle \
-+1: \
-+htb \
-+default \
-+2
-+tc \
-+filter \
-+add \
-+dev \
-+virbr0 \
-+prio \
-+2 \
-+protocol \
-+ip \
-+parent \
-+1: \
-+u32 \
-+match \
-+ip \
-+dport \
-+68 \
-+ffff \
-+action \
-+csum \
-+ip \
-+and \
-+udp
- nft \
- -ae insert \
- rule \
-diff --git a/tests/networkxml2firewalldata/nat-default-linux.nftables b/tests/networkxml2firewalldata/nat-default-linux.nftables
-index 28508292f9..08623c1381 100644
--- a/tests/networkxml2firewalldata/nat-default-linux.nftables
-+++ b/tests/networkxml2firewalldata/nat-default-linux.nftables
-@@ -1,3 +1,43 @@
-+tc \
-+qdisc \
-+show \
-+dev \
-+virbr0 \
-+handle \
-+1:
-+tc \
-+qdisc \
-+add \
-+dev \
-+virbr0 \
-+root \
-+handle \
-+1: \
-+htb \
-+default \
-+2
-+tc \
-+filter \
-+add \
-+dev \
-+virbr0 \
-+prio \
-+2 \
-+protocol \
-+ip \
-+parent \
-+1: \
-+u32 \
-+match \
-+ip \
-+dport \
-+68 \
-+ffff \
-+action \
-+csum \
-+ip \
-+and \
-+udp
- nft \
- -ae insert \
- rule \
-diff --git a/tests/networkxml2firewalldata/nat-ipv6-linux.nftables b/tests/networkxml2firewalldata/nat-ipv6-linux.nftables
-index d8a9ba706d..3fd6b94eef 100644
--- a/tests/networkxml2firewalldata/nat-ipv6-linux.nftables
-+++ b/tests/networkxml2firewalldata/nat-ipv6-linux.nftables
-@@ -1,3 +1,43 @@
-+tc \
-+qdisc \
-+show \
-+dev \
-+virbr0 \
-+handle \
-+1:
-+tc \
-+qdisc \
-+add \
-+dev \
-+virbr0 \
-+root \
-+handle \
-+1: \
-+htb \
-+default \
-+2
-+tc \
-+filter \
-+add \
-+dev \
-+virbr0 \
-+prio \
-+2 \
-+protocol \
-+ip \
-+parent \
-+1: \
-+u32 \
-+match \
-+ip \
-+dport \
-+68 \
-+ffff \
-+action \
-+csum \
-+ip \
-+and \
-+udp
- nft \
- -ae insert \
- rule \
-diff --git a/tests/networkxml2firewalldata/nat-ipv6-masquerade-linux.nftables b/tests/networkxml2firewalldata/nat-ipv6-masquerade-linux.nftables
-index a7f09cda59..2811e098d1 100644
--- a/tests/networkxml2firewalldata/nat-ipv6-masquerade-linux.nftables
-+++ b/tests/networkxml2firewalldata/nat-ipv6-masquerade-linux.nftables
-@@ -1,3 +1,43 @@
-+tc \
-+qdisc \
-+show \
-+dev \
-+virbr0 \
-+handle \
-+1:
-+tc \
-+qdisc \
-+add \
-+dev \
-+virbr0 \
-+root \
-+handle \
-+1: \
-+htb \
-+default \
-+2
-+tc \
-+filter \
-+add \
-+dev \
-+virbr0 \
-+prio \
-+2 \
-+protocol \
-+ip \
-+parent \
-+1: \
-+u32 \
-+match \
-+ip \
-+dport \
-+68 \
-+ffff \
-+action \
-+csum \
-+ip \
-+and \
-+udp
- nft \
- -ae insert \
- rule \
-diff --git a/tests/networkxml2firewalldata/nat-many-ips-linux.nftables b/tests/networkxml2firewalldata/nat-many-ips-linux.nftables
-index b826fe6134..5409d5b552 100644
--- a/tests/networkxml2firewalldata/nat-many-ips-linux.nftables
-+++ b/tests/networkxml2firewalldata/nat-many-ips-linux.nftables
-@@ -1,3 +1,43 @@
-+tc \
-+qdisc \
-+show \
-+dev \
-+virbr0 \
-+handle \
-+1:
-+tc \
-+qdisc \
-+add \
-+dev \
-+virbr0 \
-+root \
-+handle \
-+1: \
-+htb \
-+default \
-+2
-+tc \
-+filter \
-+add \
-+dev \
-+virbr0 \
-+prio \
-+2 \
-+protocol \
-+ip \
-+parent \
-+1: \
-+u32 \
-+match \
-+ip \
-+dport \
-+68 \
-+ffff \
-+action \
-+csum \
-+ip \
-+and \
-+udp
- nft \
- -ae insert \
- rule \
-diff --git a/tests/networkxml2firewalldata/nat-no-dhcp-linux.nftables b/tests/networkxml2firewalldata/nat-no-dhcp-linux.nftables
-index d8a9ba706d..3fd6b94eef 100644
--- a/tests/networkxml2firewalldata/nat-no-dhcp-linux.nftables
-+++ b/tests/networkxml2firewalldata/nat-no-dhcp-linux.nftables
-@@ -1,3 +1,43 @@
-+tc \
-+qdisc \
-+show \
-+dev \
-+virbr0 \
-+handle \
-+1:
-+tc \
-+qdisc \
-+add \
-+dev \
-+virbr0 \
-+root \
-+handle \
-+1: \
-+htb \
-+default \
-+2
-+tc \
-+filter \
-+add \
-+dev \
-+virbr0 \
-+prio \
-+2 \
-+protocol \
-+ip \
-+parent \
-+1: \
-+u32 \
-+match \
-+ip \
-+dport \
-+68 \
-+ffff \
-+action \
-+csum \
-+ip \
-+and \
-+udp
- nft \
- -ae insert \
- rule \
-diff --git a/tests/networkxml2firewalldata/nat-port-range-ipv6-linux.nftables b/tests/networkxml2firewalldata/nat-port-range-ipv6-linux.nftables
-index ceaed6fa40..d74417cdb3 100644
--- a/tests/networkxml2firewalldata/nat-port-range-ipv6-linux.nftables
-+++ b/tests/networkxml2firewalldata/nat-port-range-ipv6-linux.nftables
-@@ -1,3 +1,43 @@
-+tc \
-+qdisc \
-+show \
-+dev \
-+virbr0 \
-+handle \
-+1:
-+tc \
-+qdisc \
-+add \
-+dev \
-+virbr0 \
-+root \
-+handle \
-+1: \
-+htb \
-+default \
-+2
-+tc \
-+filter \
-+add \
-+dev \
-+virbr0 \
-+prio \
-+2 \
-+protocol \
-+ip \
-+parent \
-+1: \
-+u32 \
-+match \
-+ip \
-+dport \
-+68 \
-+ffff \
-+action \
-+csum \
-+ip \
-+and \
-+udp
- nft \
- -ae insert \
- rule \
-diff --git a/tests/networkxml2firewalldata/nat-port-range-linux.nftables b/tests/networkxml2firewalldata/nat-port-range-linux.nftables
-index 1dc37a26ec..b55bb287a9 100644
--- a/tests/networkxml2firewalldata/nat-port-range-linux.nftables
-+++ b/tests/networkxml2firewalldata/nat-port-range-linux.nftables
-@@ -1,3 +1,43 @@
-+tc \
-+qdisc \
-+show \
-+dev \
-+virbr0 \
-+handle \
-+1:
-+tc \
-+qdisc \
-+add \
-+dev \
-+virbr0 \
-+root \
-+handle \
-+1: \
-+htb \
-+default \
-+2
-+tc \
-+filter \
-+add \
-+dev \
-+virbr0 \
-+prio \
-+2 \
-+protocol \
-+ip \
-+parent \
-+1: \
-+u32 \
-+match \
-+ip \
-+dport \
-+68 \
-+ffff \
-+action \
-+csum \
-+ip \
-+and \
-+udp
- nft \
- -ae insert \
- rule \
-diff --git a/tests/networkxml2firewalldata/nat-tftp-linux.nftables b/tests/networkxml2firewalldata/nat-tftp-linux.nftables
-index 28508292f9..08623c1381 100644
--- a/tests/networkxml2firewalldata/nat-tftp-linux.nftables
-+++ b/tests/networkxml2firewalldata/nat-tftp-linux.nftables
-@@ -1,3 +1,43 @@
-+tc \
-+qdisc \
-+show \
-+dev \
-+virbr0 \
-+handle \
-+1:
-+tc \
-+qdisc \
-+add \
-+dev \
-+virbr0 \
-+root \
-+handle \
-+1: \
-+htb \
-+default \
-+2
-+tc \
-+filter \
-+add \
-+dev \
-+virbr0 \
-+prio \
-+2 \
-+protocol \
-+ip \
-+parent \
-+1: \
-+u32 \
-+match \
-+ip \
-+dport \
-+68 \
-+ffff \
-+action \
-+csum \
-+ip \
-+and \
-+udp
- nft \
- -ae insert \
- rule \
-diff --git a/tests/networkxml2firewalldata/route-default-linux.nftables b/tests/networkxml2firewalldata/route-default-linux.nftables
-index 282c9542a5..76d6902517 100644
--- a/tests/networkxml2firewalldata/route-default-linux.nftables
-+++ b/tests/networkxml2firewalldata/route-default-linux.nftables
-@@ -1,3 +1,43 @@
-+tc \
-+qdisc \
-+show \
-+dev \
-+virbr0 \
-+handle \
-+1:
-+tc \
-+qdisc \
-+add \
-+dev \
-+virbr0 \
-+root \
-+handle \
-+1: \
-+htb \
-+default \
-+2
-+tc \
-+filter \
-+add \
-+dev \
-+virbr0 \
-+prio \
-+2 \
-+protocol \
-+ip \
-+parent \
-+1: \
-+u32 \
-+match \
-+ip \
-+dport \
-+68 \
-+ffff \
-+action \
-+csum \
-+ip \
-+and \
-+udp
- nft \
- -ae insert \
- rule \
-- 
-2.47.1
-
@@ -1,51 +0,0 @@
-From 114c0ec656e879ab4d67919914bb24cf5993106d Mon Sep 17 00:00:00 2001
-Message-ID: <114c0ec656e879ab4d67919914bb24cf5993106d.1734201785.git.crobinso@redhat.com>
-From: Laine Stump <laine@redhat.com>
-Date: Mon, 2 Sep 2024 16:13:08 -0400
-Subject: [PATCH] network: permit <forward mode='open'/> when a network has no
- IP address
-Content-type: text/plain
-
-The whole point of <forward mode='open'/> is to supress libvirt from
-adding any firewall rules for a network, and someone might want to
-create a network with no IP address (i.e. they don't want the guests
-to have connectivity to the host via this interface) and no firewall
-rules (they don't want any, or they want to add their own). So there's
-no reason to fail when a network has <forward mode='open'/> and also
-has no IP address.
-
-Kind-of-Resolves: https://gitlab.com/libvirt/libvirt/-/issues/588
-Signed-off-by: Laine Stump <laine@redhat.com>
-Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
-Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
- src/conf/network_conf.c | 5 +++--
- 1 file changed, 3 insertions(+), 2 deletions(-)
-
-diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c
-index 5cf419acf1..320e1b089a 100644
--- a/src/conf/network_conf.c
-+++ b/src/conf/network_conf.c
-@@ -1789,7 +1789,6 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt,
- 
-     case VIR_NETWORK_FORWARD_ROUTE:
-     case VIR_NETWORK_FORWARD_NAT:
-    case VIR_NETWORK_FORWARD_OPEN:
-         /* It's pointless to specify L3 forwarding without specifying
-          * the network we're on.
-          */
-@@ -1806,8 +1805,10 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt,
-                            def->name);
-             return NULL;
-         }
-+        break;
- 
-        if (def->forward.type == VIR_NETWORK_FORWARD_OPEN && def->forward.nifs) {
-+    case VIR_NETWORK_FORWARD_OPEN:
-+        if (def->forward.nifs) {
-             /* an open network by definition can't place any restrictions
-              * on what traffic is allowed or where it goes, so specifying
-              * a forwarding device is nonsensical.
-- 
-2.47.1
-
@@ -1,64 +0,0 @@
-From d51179fa82448f4720f1645f0b7100df80508cc4 Mon Sep 17 00:00:00 2001
-From: Pavel Hrdina <phrdina@redhat.com>
-Date: Thu, 9 Jan 2025 16:23:44 +0100
-Subject: [PATCH] qemu: snapshot: delete disk image only if parent snapshot is
- external
-Content-type: text/plain
-
-When we are deleting external snapshot that is not active we only need
-to delete overlay disk image of the parent snapshot. This works
-correctly even if parent snapshot is external and active as it will have
-another overlay created when user reverted to that snapshot.
-
-In case the parent snapshot is internal there are no overlay disk images
-created as everything is stored internally within the disk image. In
-this case we would delete the actual disk image storing internal
-snapshots and most likely the original disk image as well resulting in
-data loss once the VM is shutoff.
-
-Fixes: https://gitlab.com/libvirt/libvirt/-/issues/734
-Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
-Reviewed-by: Peter Krempa <pkrempa@redhat.com>
---
- src/qemu/qemu_snapshot.c | 14 ++++++++------
- 1 file changed, 8 insertions(+), 6 deletions(-)
-
-diff --git a/src/qemu/qemu_snapshot.c b/src/qemu/qemu_snapshot.c
-index 18b2e478f6..80cd54bf33 100644
--- a/src/qemu/qemu_snapshot.c
-+++ b/src/qemu/qemu_snapshot.c
-@@ -3144,6 +3144,8 @@ qemuSnapshotDeleteExternalPrepareData(virDomainObj *vm,
-             return -1;
-         }
- 
-+        data->parentSnap = qemuSnapshotFindParentSnapForDisk(snap, data->snapDisk);
-+
-         if (data->merge) {
-             virStorageSource *snapDiskSrc = NULL;
- 
-@@ -3185,8 +3187,6 @@ qemuSnapshotDeleteExternalPrepareData(virDomainObj *vm,
-                 qemuSnapshotGetDisksWithBackingStore(vm, snap, data);
-             }
- 
-            data->parentSnap = qemuSnapshotFindParentSnapForDisk(snap, data->snapDisk);
-
-             if (data->parentSnap && !virDomainSnapshotIsExternal(data->parentSnap)) {
-                 virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
-                                _("deleting external snapshot that has internal snapshot as parent not supported"));
-@@ -3642,10 +3642,12 @@ qemuSnapshotDiscardExternal(virDomainObj *vm,
-             if (!data->job)
-                 goto error;
-         } else {
-            if (virStorageSourceInit(data->parentDomDisk->src) < 0 ||
-                virStorageSourceUnlink(data->parentDomDisk->src) < 0) {
-                VIR_WARN("Failed to remove snapshot image '%s'",
-                         data->snapDisk->name);
-+            if (data->parentSnap && virDomainSnapshotIsExternal(data->parentSnap)) {
-+                if (virStorageSourceInit(data->parentDomDisk->src) < 0 ||
-+                    virStorageSourceUnlink(data->parentDomDisk->src) < 0) {
-+                    VIR_WARN("Failed to remove snapshot image '%s'",
-+                             data->snapDisk->name);
-+                }
-             }
-         }
-     }
@@ -1 +1 @@
-SHA512 (libvirt-10.6.0.tar.xz) = edec79e89669d5e9a46be35e0d6334a6ed3bbf32426679549bd998bde24cba52b0378843f41a3abb5d781ad53e2a6a54619a0bad3f168c11fb41736cc6af6568
+SHA512 (libvirt-6.1.0.tar.xz) = 17a2641f300a4a05149261bae74ac856e9a2511a259146595d2e2412c4a0601d88369b0544ba86edc80e433a47cf828317d8de38c6ec86a1b3efaca75294a606
Author	SHA1	Message	Date
Cole Robinson	0aea5c88f2	libvirt-6.1.0-4 Fix libxl driver startup crash (bz #1842318)	2020-06-02 13:46:51 -04:00
Cole Robinson	1ab72850ed	libvirt-6.1.0-3 Fix iptables No chain/target/match by that name (bz #1813830) systemd: start libvirtd after firewalld/iptables services (bz #1697636)	2020-05-26 11:44:02 -04:00