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nwfilter: convert virt drivers to use public API for nwfilter bindings

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Remove the callbacks that the nwfilter driver registers with the domain
object config layer. Instead make the current helper methods call into
the public API for creating/deleting nwfilter bindings.

Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2018-05-11 18:39:27 +01:00
parent 2d9318b6ce
commit f14c37ce4c
12 changed files with 142 additions and 157 deletions
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135
src/conf/domain_nwfilter.c
View File

@ -28,45 +28,146 @@
#include "datatypes.h"
#include "domain_conf.h"
#include "domain_nwfilter.h"
#include "virnwfilterbindingdef.h"
#include "virerror.h"
#include "viralloc.h"
#include "virstring.h"
#include "virlog.h"
VIR_LOG_INIT("conf.domain_nwfilter");
#define VIR_FROM_THIS VIR_FROM_NWFILTER
static virDomainConfNWFilterDriverPtr nwfilterDriver;
void
virDomainConfNWFilterRegister(virDomainConfNWFilterDriverPtr driver)
static virNWFilterBindingDefPtr
virNWFilterBindingDefForNet(const char *vmname,
const unsigned char *vmuuid,
virDomainNetDefPtr net)
{
nwfilterDriver = driver;
virNWFilterBindingDefPtr ret;
if (VIR_ALLOC(ret) < 0)
return NULL;
if (VIR_STRDUP(ret->ownername, vmname) < 0)
goto error;
memcpy(ret->owneruuid, vmuuid, sizeof(ret->owneruuid));
if (VIR_STRDUP(ret->portdevname, net->ifname) < 0)
goto error;
if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT &&
VIR_STRDUP(ret->linkdevname, net->data.direct.linkdev) < 0)
goto error;
ret->mac = net->mac;
if (VIR_STRDUP(ret->filter, net->filter) < 0)
goto error;
if (!(ret->filterparams = virNWFilterHashTableCreate(0)))
goto error;
if (net->filterparams &&
virNWFilterHashTablePutAll(net->filterparams, ret->filterparams) < 0)
goto error;
return ret;
error:
virNWFilterBindingDefFree(ret);
return NULL;
}
int
virDomainConfNWFilterInstantiate(const char *vmname,
const unsigned char *vmuuid,
virDomainNetDefPtr net)
virDomainNetDefPtr net,
bool ignoreExists)
{
if (nwfilterDriver != NULL)
return nwfilterDriver->instantiateFilter(vmname, vmuuid, net);
virConnectPtr conn = virGetConnectNWFilter();
virNWFilterBindingDefPtr def = NULL;
virNWFilterBindingPtr binding = NULL;
char *xml;
int ret = -1;
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("No network filter driver available"));
return -1;
VIR_DEBUG("vmname=%s portdev=%s filter=%s ignoreExists=%d",
vmname, NULLSTR(net->ifname), NULLSTR(net->filter), ignoreExists);
if (!conn)
goto cleanup;
if (ignoreExists) {
binding = virNWFilterBindingLookupByPortDev(conn, net->ifname);
if (binding) {
ret = 0;
goto cleanup;
}
}
if (!(def = virNWFilterBindingDefForNet(vmname, vmuuid, net)))
goto cleanup;
if (!(xml = virNWFilterBindingDefFormat(def)))
goto cleanup;
if (!(binding = virNWFilterBindingCreateXML(conn, xml, 0)))
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(xml);
virNWFilterBindingDefFree(def);
virObjectUnref(binding);
virObjectUnref(conn);
return ret;
}
static void
virDomainConfNWFilterTeardownImpl(virConnectPtr conn,
virDomainNetDefPtr net)
{
virNWFilterBindingPtr binding;
binding = virNWFilterBindingLookupByPortDev(conn, net->ifname);
if (!binding)
return;
virNWFilterBindingDelete(binding);
virObjectUnref(binding);
}
void
virDomainConfNWFilterTeardown(virDomainNetDefPtr net)
{
if (nwfilterDriver != NULL)
nwfilterDriver->teardownFilter(net);
virConnectPtr conn = virGetConnectNWFilter();
if (!conn)
return;
virDomainConfNWFilterTeardownImpl(conn, net);
virObjectUnref(conn);
}
void
virDomainConfVMNWFilterTeardown(virDomainObjPtr vm)
{
size_t i;
virConnectPtr conn = virGetConnectNWFilter();
if (nwfilterDriver != NULL) {
for (i = 0; i < vm->def->nnets; i++)
virDomainConfNWFilterTeardown(vm->def->nets[i]);
}
if (!conn)
return;
for (i = 0; i < vm->def->nnets; i++)
virDomainConfNWFilterTeardownImpl(conn, vm->def->nets[i]);
virObjectUnref(conn);
}

16
src/conf/domain_nwfilter.h
View File

@ -23,22 +23,10 @@
#ifndef DOMAIN_NWFILTER_H
# define DOMAIN_NWFILTER_H
typedef int (*virDomainConfInstantiateNWFilter)(const char *vmname,
const unsigned char *vmuuid,
virDomainNetDefPtr net);
typedef void (*virDomainConfTeardownNWFilter)(virDomainNetDefPtr net);
typedef struct {
virDomainConfInstantiateNWFilter instantiateFilter;
virDomainConfTeardownNWFilter teardownFilter;
} virDomainConfNWFilterDriver;
typedef virDomainConfNWFilterDriver *virDomainConfNWFilterDriverPtr;
void virDomainConfNWFilterRegister(virDomainConfNWFilterDriverPtr driver);
int virDomainConfNWFilterInstantiate(const char *vmname,
const unsigned char *vmuuid,
virDomainNetDefPtr net);
virDomainNetDefPtr net,
bool ignoreExists);
void virDomainConfNWFilterTeardown(virDomainNetDefPtr net);
void virDomainConfVMNWFilterTeardown(virDomainObjPtr vm);

1
src/libvirt_private.syms
View File

@ -651,7 +651,6 @@ virDomainQemuMonitorEventStateRegisterID;
# conf/domain_nwfilter.h
virDomainConfNWFilterInstantiate;
virDomainConfNWFilterRegister;
virDomainConfNWFilterTeardown;
virDomainConfVMNWFilterTeardown;

2
src/lxc/lxc_process.c
View File

@ -303,7 +303,7 @@ virLXCProcessSetupInterfaceTap(virDomainDefPtr vm,
}
if (net->filter &&
virDomainConfNWFilterInstantiate(vm->name, vm->uuid, net) < 0)
virDomainConfNWFilterInstantiate(vm->name, vm->uuid, net, false) < 0)
goto cleanup;
ret = containerVeth;

82
src/nwfilter/nwfilter_driver.c
View File

@ -655,65 +655,6 @@ nwfilterGetXMLDesc(virNWFilterPtr nwfilter,
}
static int
nwfilterInstantiateFilter(const char *vmname,
const unsigned char *vmuuid,
virDomainNetDefPtr net)
{
virNWFilterBindingObjPtr obj;
virNWFilterBindingDefPtr def;
int ret;
obj = virNWFilterBindingObjListFindByPortDev(driver->bindings, net->ifname);
if (obj) {
virNWFilterBindingObjEndAPI(&obj);
return 0;
}
if (!(def = virNWFilterBindingDefForNet(vmname, vmuuid, net)))
return -1;
obj = virNWFilterBindingObjListAdd(driver->bindings,
def);
if (!obj) {
virNWFilterBindingDefFree(def);
return -1;
}
ret = virNWFilterInstantiateFilter(driver, def);
if (ret >= 0)
virNWFilterBindingObjSave(obj, driver->bindingDir);
else
virNWFilterBindingObjListRemove(driver->bindings, obj);
virNWFilterBindingObjEndAPI(&obj);
return ret;
}
static void
nwfilterTeardownFilter(virDomainNetDefPtr net)
{
virNWFilterBindingObjPtr obj;
virNWFilterBindingDefPtr def;
if (!net->ifname)
return;
obj = virNWFilterBindingObjListFindByPortDev(driver->bindings, net->ifname);
if (!obj)
return;
def = virNWFilterBindingObjGetDef(obj);
virNWFilterTeardownFilter(def);
virNWFilterBindingObjDelete(obj, driver->bindingDir);
virNWFilterBindingObjListRemove(driver->bindings, obj);
virNWFilterBindingObjEndAPI(&obj);
}
static virNWFilterBindingPtr
nwfilterBindingLookupByPortDev(virConnectPtr conn,
const char *portdev)
@ -724,8 +665,11 @@ nwfilterBindingLookupByPortDev(virConnectPtr conn,
obj = virNWFilterBindingObjListFindByPortDev(driver->bindings,
portdev);
if (!obj)
if (!obj) {
virReportError(VIR_ERR_NO_NWFILTER_BINDING,
_("no nwfilter binding for port dev '%s'"), portdev);
goto cleanup;
}
def = virNWFilterBindingObjGetDef(obj);
if (virNWFilterBindingLookupByPortDevEnsureACL(conn, def) < 0)
@ -772,8 +716,11 @@ nwfilterBindingGetXMLDesc(virNWFilterBindingPtr binding,
obj = virNWFilterBindingObjListFindByPortDev(driver->bindings,
binding->portdev);
if (!obj)
if (!obj) {
virReportError(VIR_ERR_NO_NWFILTER_BINDING,
_("no nwfilter binding for port dev '%s'"), binding->portdev);
goto cleanup;
}
def = virNWFilterBindingObjGetDef(obj);
if (virNWFilterBindingGetXMLDescEnsureACL(binding->conn, def) < 0)
@ -852,8 +799,11 @@ nwfilterBindingDelete(virNWFilterBindingPtr binding)
int ret = -1;
obj = virNWFilterBindingObjListFindByPortDev(driver->bindings, binding->portdev);
if (!obj)
if (!obj) {
virReportError(VIR_ERR_NO_NWFILTER_BINDING,
_("no nwfilter binding for port dev '%s'"), binding->portdev);
return -1;
}
def = virNWFilterBindingObjGetDef(obj);
if (virNWFilterBindingDeleteEnsureACL(binding->conn, def) < 0)
@ -914,13 +864,6 @@ static virStateDriver stateDriver = {
.stateReload = nwfilterStateReload,
};
static virDomainConfNWFilterDriver domainNWFilterDriver = {
.instantiateFilter = nwfilterInstantiateFilter,
.teardownFilter = nwfilterTeardownFilter,
};
int nwfilterRegister(void)
{
if (virRegisterConnectDriver(&nwfilterConnectDriver, false) < 0)
@ -929,6 +872,5 @@ int nwfilterRegister(void)
return -1;
if (virRegisterStateDriver(&stateDriver) < 0)
return -1;
virDomainConfNWFilterRegister(&domainNWFilterDriver);
return 0;
}

42
src/nwfilter/nwfilter_gentech_driver.c
View File

@ -1082,45 +1082,3 @@ virNWFilterBuildAll(virNWFilterDriverStatePtr driver,
}
return ret;
}
virNWFilterBindingDefPtr
virNWFilterBindingDefForNet(const char *vmname,
const unsigned char *vmuuid,
virDomainNetDefPtr net)
{
virNWFilterBindingDefPtr ret;
if (VIR_ALLOC(ret) < 0)
return NULL;
if (VIR_STRDUP(ret->ownername, vmname) < 0)
goto error;
memcpy(ret->owneruuid, vmuuid, sizeof(ret->owneruuid));
if (VIR_STRDUP(ret->portdevname, net->ifname) < 0)
goto error;
if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT &&
VIR_STRDUP(ret->linkdevname, net->data.direct.linkdev) < 0)
goto error;
ret->mac = net->mac;
if (VIR_STRDUP(ret->filter, net->filter) < 0)
goto error;
if (!(ret->filterparams = virNWFilterHashTableCreate(0)))
goto error;
if (net->filterparams &&
virNWFilterHashTablePutAll(net->filterparams, ret->filterparams) < 0)
goto error;
return ret;
error:
virNWFilterBindingDefFree(ret);
return NULL;
}

4
src/nwfilter/nwfilter_gentech_driver.h
View File

@ -57,8 +57,4 @@ virHashTablePtr virNWFilterCreateVarHashmap(const char *macaddr,
int virNWFilterBuildAll(virNWFilterDriverStatePtr driver,
bool newFilters);
virNWFilterBindingDefPtr virNWFilterBindingDefForNet(const char *vmname,
const unsigned char *vmuuid,
virDomainNetDefPtr net);
#endif

4
src/qemu/qemu_hotplug.c
View File

@ -3009,7 +3009,7 @@ qemuDomainChangeNetFilter(virDomainObjPtr vm,
if (newdev->filter &&
virDomainConfNWFilterInstantiate(vm->def->name,
vm->def->uuid, newdev) < 0) {
vm->def->uuid, newdev, false) < 0) {
virErrorPtr errobj;
virReportError(VIR_ERR_OPERATION_FAILED,
@ -3018,7 +3018,7 @@ qemuDomainChangeNetFilter(virDomainObjPtr vm,
olddev->ifname);
virErrorPreserveLast(&errobj);
ignore_value(virDomainConfNWFilterInstantiate(vm->def->name,
vm->def->uuid, olddev));
vm->def->uuid, olddev, false));
virErrorRestore(&errobj);
return -1;
}

4
src/qemu/qemu_interface.c
View File

@ -467,7 +467,7 @@ qemuInterfaceEthernetConnect(virDomainDefPtr def,
goto cleanup;
if (net->filter &&
virDomainConfNWFilterInstantiate(def->name, def->uuid, net) < 0) {
virDomainConfNWFilterInstantiate(def->name, def->uuid, net, false) < 0) {
goto cleanup;
}
@ -586,7 +586,7 @@ qemuInterfaceBridgeConnect(virDomainDefPtr def,
goto cleanup;
if (net->filter &&
virDomainConfNWFilterInstantiate(def->name, def->uuid, net) < 0) {
virDomainConfNWFilterInstantiate(def->name, def->uuid, net, false) < 0) {
goto cleanup;
}

6
src/qemu/qemu_process.c
View File

@ -3018,14 +3018,14 @@ qemuProcessNotifyNets(virDomainDefPtr def)
}
static int
qemuProcessFiltersInstantiate(virDomainDefPtr def)
qemuProcessFiltersInstantiate(virDomainDefPtr def, bool ignoreExists)
{
size_t i;
for (i = 0; i < def->nnets; i++) {
virDomainNetDefPtr net = def->nets[i];
if ((net->filter) && (net->ifname)) {
if (virDomainConfNWFilterInstantiate(def->name, def->uuid, net) < 0)
if (virDomainConfNWFilterInstantiate(def->name, def->uuid, net, ignoreExists) < 0)
return 1;
}
}
@ -7650,7 +7650,7 @@ qemuProcessReconnect(void *opaque)
qemuProcessNotifyNets(obj->def);
if (qemuProcessFiltersInstantiate(obj->def))
if (qemuProcessFiltersInstantiate(obj->def, true))
goto error;
if (qemuProcessRefreshDisks(driver, obj, QEMU_ASYNC_JOB_NONE) < 0)

1
src/remote/remote_daemon.c
View File

@ -283,6 +283,7 @@ static int daemonErrorLogFilter(virErrorPtr err, int priority)
case VIR_ERR_NO_NODE_DEVICE:
case VIR_ERR_NO_INTERFACE:
case VIR_ERR_NO_NWFILTER:
case VIR_ERR_NO_NWFILTER_BINDING:
case VIR_ERR_NO_SECRET:
case VIR_ERR_NO_DOMAIN_SNAPSHOT:
case VIR_ERR_OPERATION_INVALID:

2
src/uml/uml_conf.c
View File

@ -137,7 +137,7 @@ umlConnectTapDevice(virDomainDefPtr vm,
}
if (net->filter) {
if (virDomainConfNWFilterInstantiate(vm->name, vm->uuid, net) < 0) {
if (virDomainConfNWFilterInstantiate(vm->name, vm->uuid, net, false) < 0) {
if (template_ifname)
VIR_FREE(net->ifname);
goto error;