[libvirt] [PATCH v4 3/6] nwfilter: remove virt driver callback layer for rebuilding filters

Now that the nwfilter driver keeps a list of bindings that it has created, there is no need for the complex virt driver callbacks. It is possible to simply iterate of the list of recorded filter bindings. This means that rebuilding filters no longer has to acquire any locks on the virDomainObj objects, as they're never touched. Reviewed-by: John Ferlan <jferlan(a)redhat.com&gt; Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com&gt; --- src/conf/nwfilter_conf.c | 136 +++----------------- src/conf/nwfilter_conf.h | 51 +------- src/conf/virnwfilterobj.c | 4 +- src/libvirt_private.syms | 7 +- src/lxc/lxc_driver.c | 28 ----- src/nwfilter/nwfilter_driver.c | 22 ++-- src/nwfilter/nwfilter_gentech_driver.c | 167 ++++++++++++++++--------- src/nwfilter/nwfilter_gentech_driver.h | 4 +- src/qemu/qemu_driver.c | 25 ---- src/uml/uml_driver.c | 29 ----- 10 files changed, 144 insertions(+), 329 deletions(-) diff --git a/src/conf/nwfilter_conf.c b/src/conf/nwfilter_conf.c index de26a6d034..706e803a25 100644 --- a/src/conf/nwfilter_conf.c +++ b/src/conf/nwfilter_conf.c @@ -2819,121 +2819,6 @@ virNWFilterSaveConfig(const char *configDir, } -int nCallbackDriver; -#define MAX_CALLBACK_DRIVER 10 -static virNWFilterCallbackDriverPtr callbackDrvArray[MAX_CALLBACK_DRIVER]; - -void -virNWFilterRegisterCallbackDriver(virNWFilterCallbackDriverPtr cbd) -{ - if (nCallbackDriver < MAX_CALLBACK_DRIVER) - callbackDrvArray[nCallbackDriver++] = cbd; -} - - -void -virNWFilterUnRegisterCallbackDriver(virNWFilterCallbackDriverPtr cbd) -{ - size_t i = 0; - - while (i < nCallbackDriver && callbackDrvArray[i] != cbd) - i++; - - if (i < nCallbackDriver) { - memmove(&callbackDrvArray[i], &callbackDrvArray[i+1], - (nCallbackDriver - i - 1) * sizeof(callbackDrvArray[i])); - callbackDrvArray[i] = 0; - nCallbackDriver--; - } -} - - -void -virNWFilterCallbackDriversLock(void) -{ - size_t i; - - for (i = 0; i < nCallbackDriver; i++) - callbackDrvArray[i]->vmDriverLock(); -} - - -void -virNWFilterCallbackDriversUnlock(void) -{ - size_t i; - - for (i = 0; i < nCallbackDriver; i++) - callbackDrvArray[i]->vmDriverUnlock(); -} - - -static virDomainObjListIterator virNWFilterDomainFWUpdateCB; -static void *virNWFilterDomainFWUpdateOpaque; - -/** - * virNWFilterInstFiltersOnAllVMs: - * Apply all filters on all running VMs. Don't terminate in case of an - * error. This should be called upon reloading of the driver. - */ -int -virNWFilterInstFiltersOnAllVMs(void) -{ - size_t i; - struct domUpdateCBStruct cb = { - .opaque = virNWFilterDomainFWUpdateOpaque, - .step = STEP_APPLY_CURRENT, - .skipInterfaces = NULL, /* not needed */ - }; - - for (i = 0; i < nCallbackDriver; i++) - callbackDrvArray[i]->vmFilterRebuild(virNWFilterDomainFWUpdateCB, - &cb); - - return 0; -} - - -int -virNWFilterTriggerVMFilterRebuild(void) -{ - size_t i; - int ret = 0; - struct domUpdateCBStruct cb = { - .opaque = virNWFilterDomainFWUpdateOpaque, - .step = STEP_APPLY_NEW, - .skipInterfaces = virHashCreate(0, NULL), - }; - - if (!cb.skipInterfaces) - return -1; - - for (i = 0; i < nCallbackDriver; i++) { - if (callbackDrvArray[i]->vmFilterRebuild(virNWFilterDomainFWUpdateCB, - &cb) < 0) - ret = -1; - } - - if (ret < 0) { - cb.step = STEP_TEAR_NEW; /* rollback */ - - for (i = 0; i < nCallbackDriver; i++) - callbackDrvArray[i]->vmFilterRebuild(virNWFilterDomainFWUpdateCB, - &cb); - } else { - cb.step = STEP_TEAR_OLD; /* switch over */ - - for (i = 0; i < nCallbackDriver; i++) - callbackDrvArray[i]->vmFilterRebuild(virNWFilterDomainFWUpdateCB, - &cb); - } - - virHashFree(cb.skipInterfaces); - - return ret; -} - - int virNWFilterDeleteDef(const char *configDir, virNWFilterDefPtr def) @@ -3204,16 +3089,18 @@ virNWFilterDefFormat(const virNWFilterDef *def) return NULL; } +static virNWFilterTriggerRebuildCallback rebuildCallback; +static void *rebuildOpaque; int -virNWFilterConfLayerInit(virDomainObjListIterator domUpdateCB, +virNWFilterConfLayerInit(virNWFilterTriggerRebuildCallback cb, void *opaque) { if (initialized) return -1; - virNWFilterDomainFWUpdateCB = domUpdateCB; - virNWFilterDomainFWUpdateOpaque = opaque; + rebuildCallback = cb; + rebuildOpaque = opaque; initialized = true; @@ -3233,8 +3120,17 @@ virNWFilterConfLayerShutdown(void) virRWLockDestroy(&updateLock); initialized = false; - virNWFilterDomainFWUpdateOpaque = NULL; - virNWFilterDomainFWUpdateCB = NULL; + rebuildCallback = NULL; + rebuildOpaque = NULL; +} + + +int +virNWFilterTriggerRebuild(void) +{ + if (rebuildCallback) + return rebuildCallback(rebuildOpaque); + return 0; } diff --git a/src/conf/nwfilter_conf.h b/src/conf/nwfilter_conf.h index 08fc07c55c..9f8ad51bf2 100644 --- a/src/conf/nwfilter_conf.h +++ b/src/conf/nwfilter_conf.h @@ -546,20 +546,6 @@ struct _virNWFilterDef { }; -typedef enum { - STEP_APPLY_NEW, - STEP_TEAR_NEW, - STEP_TEAR_OLD, - STEP_APPLY_CURRENT, -} UpdateStep; - -struct domUpdateCBStruct { - void *opaque; - UpdateStep step; - virHashTablePtr skipInterfaces; -}; - - void virNWFilterRuleDefFree(virNWFilterRuleDefPtr def); @@ -567,7 +553,7 @@ void virNWFilterDefFree(virNWFilterDefPtr def); int -virNWFilterTriggerVMFilterRebuild(void); +virNWFilterTriggerRebuild(void); int virNWFilterDeleteDef(const char *configDir, @@ -599,44 +585,15 @@ virNWFilterReadLockFilterUpdates(void); void virNWFilterUnlockFilterUpdates(void); +typedef int (*virNWFilterTriggerRebuildCallback)(void *opaque); + int -virNWFilterConfLayerInit(virDomainObjListIterator domUpdateCB, +virNWFilterConfLayerInit(virNWFilterTriggerRebuildCallback cb, void *opaque); void virNWFilterConfLayerShutdown(void); -int -virNWFilterInstFiltersOnAllVMs(void); - -typedef int -(*virNWFilterRebuild)(virDomainObjListIterator domUpdateCB, - void *data); - -typedef void -(*virNWFilterVoidCall)(void); - -typedef struct _virNWFilterCallbackDriver virNWFilterCallbackDriver; -typedef virNWFilterCallbackDriver *virNWFilterCallbackDriverPtr; -struct _virNWFilterCallbackDriver { - const char *name; - - virNWFilterRebuild vmFilterRebuild; - virNWFilterVoidCall vmDriverLock; - virNWFilterVoidCall vmDriverUnlock; -}; - -void -virNWFilterRegisterCallbackDriver(virNWFilterCallbackDriverPtr); - -void -virNWFilterUnRegisterCallbackDriver(virNWFilterCallbackDriverPtr); - -void -virNWFilterCallbackDriversLock(void); - -void -virNWFilterCallbackDriversUnlock(void); char * virNWFilterPrintTCPFlags(uint8_t flags); diff --git a/src/conf/virnwfilterobj.c b/src/conf/virnwfilterobj.c index 87d7e72703..0136a0d56c 100644 --- a/src/conf/virnwfilterobj.c +++ b/src/conf/virnwfilterobj.c @@ -276,7 +276,7 @@ virNWFilterObjTestUnassignDef(virNWFilterObjPtr obj) obj->wantRemoved = true; /* trigger the update on VMs referencing the filter */ - if (virNWFilterTriggerVMFilterRebuild() < 0) + if (virNWFilterTriggerRebuild() < 0) rc = -1; obj->wantRemoved = false; @@ -358,7 +358,7 @@ virNWFilterObjListAssignDef(virNWFilterObjListPtr nwfilters, obj->newDef = def; /* trigger the update on VMs referencing the filter */ - if (virNWFilterTriggerVMFilterRebuild() < 0) { + if (virNWFilterTriggerRebuild() < 0) { obj->newDef = NULL; virNWFilterObjUnlock(obj); return NULL; diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 427c53eae4..42547e64ed 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -787,8 +787,6 @@ virDomainNumatuneSpecifiedMaxNode; # conf/nwfilter_conf.h -virNWFilterCallbackDriversLock; -virNWFilterCallbackDriversUnlock; virNWFilterChainSuffixTypeToString; virNWFilterConfLayerInit; virNWFilterConfLayerShutdown; @@ -797,12 +795,10 @@ virNWFilterDefFree; virNWFilterDefParseFile; virNWFilterDefParseString; virNWFilterDeleteDef; -virNWFilterInstFiltersOnAllVMs; virNWFilterJumpTargetTypeToString; virNWFilterPrintStateMatchFlags; virNWFilterPrintTCPFlags; virNWFilterReadLockFilterUpdates; -virNWFilterRegisterCallbackDriver; virNWFilterRuleActionTypeToString; virNWFilterRuleDirectionTypeToString; virNWFilterRuleIsProtocolEthernet; @@ -810,9 +806,8 @@ virNWFilterRuleIsProtocolIPv4; virNWFilterRuleIsProtocolIPv6; virNWFilterRuleProtocolTypeToString; virNWFilterSaveConfig; -virNWFilterTriggerVMFilterRebuild; +virNWFilterTriggerRebuild; virNWFilterUnlockFilterUpdates; -virNWFilterUnRegisterCallbackDriver; virNWFilterWriteLockFilterUpdates; diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c index cfb431488d..bde0ff6ad4 100644 --- a/src/lxc/lxc_driver.c +++ b/src/lxc/lxc_driver.c @@ -66,7 +66,6 @@ #include "virfdstream.h" #include "domain_audit.h" #include "domain_nwfilter.h" -#include "nwfilter_conf.h" #include "virinitctl.h" #include "virnetdev.h" #include "virnetdevtap.h" @@ -95,31 +94,6 @@ static int lxcStateInitialize(bool privileged, static int lxcStateCleanup(void); virLXCDriverPtr lxc_driver = NULL; -/* callbacks for nwfilter */ -static int -lxcVMFilterRebuild(virDomainObjListIterator iter, void *data) -{ - return virDomainObjListForEach(lxc_driver->domains, iter, data); -} - -static void -lxcVMDriverLock(void) -{ - lxcDriverLock(lxc_driver); -} - -static void -lxcVMDriverUnlock(void) -{ - lxcDriverUnlock(lxc_driver); -} - -static virNWFilterCallbackDriver lxcCallbackDriver = { - .name = "LXC", - .vmFilterRebuild = lxcVMFilterRebuild, - .vmDriverLock = lxcVMDriverLock, - .vmDriverUnlock = lxcVMDriverUnlock, -}; /** * lxcDomObjFromDomain: @@ -1672,7 +1646,6 @@ static int lxcStateInitialize(bool privileged, NULL, NULL) < 0) goto cleanup; - virNWFilterRegisterCallbackDriver(&lxcCallbackDriver); virObjectUnref(caps); return 0; @@ -1744,7 +1717,6 @@ static int lxcStateCleanup(void) if (lxc_driver == NULL) return -1; - virNWFilterUnRegisterCallbackDriver(&lxcCallbackDriver); virObjectUnref(lxc_driver->domains); virObjectUnref(lxc_driver->domainEventState); diff --git a/src/nwfilter/nwfilter_driver.c b/src/nwfilter/nwfilter_driver.c index 1449b67c72..e49e0e7406 100644 --- a/src/nwfilter/nwfilter_driver.c +++ b/src/nwfilter/nwfilter_driver.c @@ -163,6 +163,15 @@ nwfilterDriverInstallDBusMatches(DBusConnection *sysbus ATTRIBUTE_UNUSED) #endif /* HAVE_FIREWALLD */ +static int +virNWFilterTriggerRebuildImpl(void *opaque) +{ + virNWFilterDriverStatePtr nwdriver = opaque; + + return virNWFilterBuildAll(nwdriver, true); +} + + /** * nwfilterStateInitialize: * @@ -207,7 +216,7 @@ nwfilterStateInitialize(bool privileged, if (virNWFilterTechDriversInit(privileged) < 0) goto err_dhcpsnoop_shutdown; - if (virNWFilterConfLayerInit(virNWFilterDomainFWUpdateCB, + if (virNWFilterConfLayerInit(virNWFilterTriggerRebuildImpl, driver) < 0) goto err_techdrivers_shutdown; @@ -302,15 +311,14 @@ nwfilterStateReload(void) nwfilterDriverLock(); virNWFilterWriteLockFilterUpdates(); - virNWFilterCallbackDriversLock(); virNWFilterObjListLoadAllConfigs(driver->nwfilters, driver->configDir); - virNWFilterCallbackDriversUnlock(); virNWFilterUnlockFilterUpdates(); - nwfilterDriverUnlock(); - virNWFilterInstFiltersOnAllVMs(); + virNWFilterBuildAll(driver, false); + + nwfilterDriverUnlock(); return 0; } @@ -547,7 +555,6 @@ nwfilterDefineXML(virConnectPtr conn, nwfilterDriverLock(); virNWFilterWriteLockFilterUpdates(); - virNWFilterCallbackDriversLock(); if (!(def = virNWFilterDefParseString(xml))) goto cleanup; @@ -572,7 +579,6 @@ nwfilterDefineXML(virConnectPtr conn, if (obj) virNWFilterObjUnlock(obj); - virNWFilterCallbackDriversUnlock(); virNWFilterUnlockFilterUpdates(); nwfilterDriverUnlock(); return nwfilter; @@ -588,7 +594,6 @@ nwfilterUndefine(virNWFilterPtr nwfilter) nwfilterDriverLock(); virNWFilterWriteLockFilterUpdates(); - virNWFilterCallbackDriversLock(); if (!(obj = nwfilterObjFromNWFilter(nwfilter->uuid))) goto cleanup; @@ -615,7 +620,6 @@ nwfilterUndefine(virNWFilterPtr nwfilter) if (obj) virNWFilterObjUnlock(obj); - virNWFilterCallbackDriversUnlock(); virNWFilterUnlockFilterUpdates(); nwfilterDriverUnlock(); return ret; diff --git a/src/nwfilter/nwfilter_gentech_driver.c b/src/nwfilter/nwfilter_gentech_driver.c index 4b55bd6ca4..d208d0188e 100644 --- a/src/nwfilter/nwfilter_gentech_driver.c +++ b/src/nwfilter/nwfilter_gentech_driver.c @@ -153,9 +153,9 @@ virNWFilterVarHashmapAddStdValues(virHashTablePtr table, if (!val) return -1; - if (virHashAddEntry(table, - NWFILTER_STD_VAR_MAC, - val) < 0) { + if (virHashUpdateEntry(table, + NWFILTER_STD_VAR_MAC, + val) < 0) { virNWFilterVarValueFree(val); virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Could not add variable 'MAC' to hashmap")); @@ -168,9 +168,9 @@ virNWFilterVarHashmapAddStdValues(virHashTablePtr table, if (!val) return -1; - if (virHashAddEntry(table, - NWFILTER_STD_VAR_IP, - val) < 0) { + if (virHashUpdateEntry(table, + NWFILTER_STD_VAR_IP, + val) < 0) { virNWFilterVarValueFree(val); virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Could not add variable 'IP' to hashmap")); @@ -973,68 +973,113 @@ virNWFilterTeardownFilter(virNWFilterBindingDefPtr binding) return ret; } +enum { + STEP_APPLY_NEW, + STEP_ROLLBACK, + STEP_SWITCH, + STEP_APPLY_CURRENT, +}; -int -virNWFilterDomainFWUpdateCB(virDomainObjPtr obj, - void *data) +static int +virNWFilterBuildOne(virNWFilterDriverStatePtr driver, + virNWFilterBindingDefPtr binding, + virHashTablePtr skipInterfaces, + int step) { - virDomainDefPtr vm = obj->def; - struct domUpdateCBStruct *cb = data; - size_t i; bool skipIface; int ret = 0; - - virObjectLock(obj); - - if (virDomainObjIsActive(obj)) { - for (i = 0; i < vm->nnets; i++) { - virDomainNetDefPtr net = vm->nets[i]; - virNWFilterBindingDefPtr binding; - - if ((net->filter) && (net->ifname) && - (binding = virNWFilterBindingDefForNet( - vm->name, vm->uuid, net))) { - - switch (cb->step) { - case STEP_APPLY_NEW: - ret = virNWFilterUpdateInstantiateFilter(cb->opaque, - binding, - &skipIface); - if (ret == 0 && skipIface) { - /* filter tree unchanged -- no update needed */ - ret = virHashAddEntry(cb->skipInterfaces, - net->ifname, - (void *)~0); - } - break; - - case STEP_TEAR_NEW: - if (!virHashLookup(cb->skipInterfaces, net->ifname)) - ret = virNWFilterRollbackUpdateFilter(binding); - break; - - case STEP_TEAR_OLD: - if (!virHashLookup(cb->skipInterfaces, net->ifname)) - ret = virNWFilterTearOldFilter(binding); - break; - - case STEP_APPLY_CURRENT: - ret = virNWFilterInstantiateFilter(cb->opaque, - binding); - if (ret) - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Failure while applying current filter on " - "VM %s"), vm->name); - break; - } - virNWFilterBindingDefFree(binding); - if (ret) - break; - } + VIR_DEBUG("Building filter for portdev=%s step=%d", binding->portdevname, step); + + switch (step) { + case STEP_APPLY_NEW: + ret = virNWFilterUpdateInstantiateFilter(driver, + binding, + &skipIface); + if (ret == 0 && skipIface) { + /* filter tree unchanged -- no update needed */ + ret = virHashAddEntry(skipInterfaces, + binding->portdevname, + (void *)~0); } + break; + + case STEP_ROLLBACK: + if (!virHashLookup(skipInterfaces, binding->portdevname)) + ret = virNWFilterRollbackUpdateFilter(binding); + break; + + case STEP_SWITCH: + if (!virHashLookup(skipInterfaces, binding->portdevname)) + ret = virNWFilterTearOldFilter(binding); + break; + + case STEP_APPLY_CURRENT: + ret = virNWFilterInstantiateFilter(driver, + binding); + break; } - virObjectUnlock(obj); + return ret; +} + + +struct virNWFilterBuildData { + virNWFilterDriverStatePtr driver; + virHashTablePtr skipInterfaces; + int step; +}; + +static int +virNWFilterBuildIter(virNWFilterBindingObjPtr binding, void *opaque) +{ + struct virNWFilterBuildData *data = opaque; + virNWFilterBindingDefPtr def = virNWFilterBindingObjGetDef(binding); + + return virNWFilterBuildOne(data->driver, def, + data->skipInterfaces, data->step); +} + +int +virNWFilterBuildAll(virNWFilterDriverStatePtr driver, + bool newFilters) +{ + struct virNWFilterBuildData data = { + .driver = driver, + }; + int ret = 0; + + VIR_DEBUG("Build all filters newFilters=%d", newFilters); + + if (newFilters) { + if (!(data.skipInterfaces = virHashCreate(0, NULL))) + return -1; + + data.step = STEP_APPLY_NEW; + if (virNWFilterBindingObjListForEach(driver->bindings, + virNWFilterBuildIter, + &data) < 0) + ret = -1; + + if (ret == -1) { + data.step = STEP_ROLLBACK; + virNWFilterBindingObjListForEach(driver->bindings, + virNWFilterBuildIter, + &data); + } else { + data.step = STEP_SWITCH; + virNWFilterBindingObjListForEach(driver->bindings, + virNWFilterBuildIter, + &data); + } + + virHashFree(data.skipInterfaces); + } else { + data.step = STEP_APPLY_CURRENT; + if (virNWFilterBindingObjListForEach(driver->bindings, + virNWFilterBuildIter, + &data) < 0) + ret = -1; + } return ret; } diff --git a/src/nwfilter/nwfilter_gentech_driver.h b/src/nwfilter/nwfilter_gentech_driver.h index 6b51096a0d..481fdd2413 100644 --- a/src/nwfilter/nwfilter_gentech_driver.h +++ b/src/nwfilter/nwfilter_gentech_driver.h @@ -54,8 +54,8 @@ int virNWFilterTeardownFilter(virNWFilterBindingDefPtr binding); virHashTablePtr virNWFilterCreateVarHashmap(const char *macaddr, const virNWFilterVarValue *value); -int virNWFilterDomainFWUpdateCB(virDomainObjPtr vm, - void *data); +int virNWFilterBuildAll(virNWFilterDriverStatePtr driver, + bool newFilters); virNWFilterBindingDefPtr virNWFilterBindingDefForNet(const char *vmname, const unsigned char *vmuuid, diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 129bacdd34..4e94b4f095 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -84,7 +84,6 @@ #include "cpu/cpu.h" #include "virsysinfo.h" #include "domain_nwfilter.h" -#include "nwfilter_conf.h" #include "virhook.h" #include "virstoragefile.h" #include "virfile.h" @@ -164,28 +163,6 @@ static int qemuARPGetInterfaces(virDomainObjPtr vm, static virQEMUDriverPtr qemu_driver; - -static void -qemuVMDriverLock(void) -{} -static void -qemuVMDriverUnlock(void) -{} - -static int -qemuVMFilterRebuild(virDomainObjListIterator iter, void *data) -{ - return virDomainObjListForEach(qemu_driver->domains, iter, data); -} - -static virNWFilterCallbackDriver qemuCallbackDriver = { - .name = QEMU_DRIVER_NAME, - .vmFilterRebuild = qemuVMFilterRebuild, - .vmDriverLock = qemuVMDriverLock, - .vmDriverUnlock = qemuVMDriverUnlock, -}; - - /** * qemuDomObjFromDomain: * @domain: Domain pointer that has to be looked up @@ -941,7 +918,6 @@ qemuStateInitialize(bool privileged, qemuProcessReconnectAll(qemu_driver); - virNWFilterRegisterCallbackDriver(&qemuCallbackDriver); return 0; error: @@ -1081,7 +1057,6 @@ qemuStateCleanup(void) if (!qemu_driver) return -1; - virNWFilterUnRegisterCallbackDriver(&qemuCallbackDriver); virThreadPoolFree(qemu_driver->workerPool); virObjectUnref(qemu_driver->config); virObjectUnref(qemu_driver->hostdevMgr); diff --git a/src/uml/uml_driver.c b/src/uml/uml_driver.c index 0c5b7fcda7..c77988f01e 100644 --- a/src/uml/uml_driver.c +++ b/src/uml/uml_driver.c @@ -55,7 +55,6 @@ #include "datatypes.h" #include "virlog.h" #include "domain_nwfilter.h" -#include "nwfilter_conf.h" #include "virfile.h" #include "virfdstream.h" #include "configmake.h" @@ -143,25 +142,6 @@ static int umlMonitorCommand(const struct uml_driver *driver, static struct uml_driver *uml_driver; -static int -umlVMFilterRebuild(virDomainObjListIterator iter, void *data) -{ - return virDomainObjListForEach(uml_driver->domains, iter, data); -} - -static void -umlVMDriverLock(void) -{ - umlDriverLock(uml_driver); -} - -static void -umlVMDriverUnlock(void) -{ - umlDriverUnlock(uml_driver); -} - - static virDomainObjPtr umlDomObjFromDomainLocked(struct uml_driver *driver, const unsigned char *uuid) @@ -194,13 +174,6 @@ umlDomObjFromDomain(struct uml_driver *driver, } -static virNWFilterCallbackDriver umlCallbackDriver = { - .name = "UML", - .vmFilterRebuild = umlVMFilterRebuild, - .vmDriverLock = umlVMDriverLock, - .vmDriverUnlock = umlVMDriverUnlock, -}; - struct umlAutostartData { struct uml_driver *driver; virConnectPtr conn; @@ -604,7 +577,6 @@ umlStateInitialize(bool privileged, VIR_FREE(userdir); - virNWFilterRegisterCallbackDriver(&umlCallbackDriver); return 0; out_of_memory: @@ -697,7 +669,6 @@ umlStateCleanup(void) return -1; umlDriverLock(uml_driver); - virNWFilterRegisterCallbackDriver(&umlCallbackDriver); if (uml_driver->inotifyWatch != -1) virEventRemoveHandle(uml_driver->inotifyWatch); VIR_FORCE_CLOSE(uml_driver->inotifyFD); -- 2.17.1