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6fc378c10e
When we allow multiple instances of the driver for the same user account, using a separate root directory, we need to ensure mutual exclusion. Use a pidfile to guarantee this. In privileged libvirtd this ends up locking /var/run/libvirt/nwfilter/driver.pid In unprivileged libvirtd this ends up locking /run/user/$UID/libvirt/nwfilter/run/driver.pid NB, the latter can vary depending on $XDG_RUNTIME_DIR Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
120 lines
3.5 KiB
C
120 lines
3.5 KiB
C
/*
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* virnwfilterobj.h: network filter object processing
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* (derived from nwfilter_conf.h)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "internal.h"
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#include "nwfilter_conf.h"
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#include "virnwfilterbindingobjlist.h"
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typedef struct _virNWFilterObj virNWFilterObj;
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typedef virNWFilterObj *virNWFilterObjPtr;
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typedef struct _virNWFilterObjList virNWFilterObjList;
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typedef virNWFilterObjList *virNWFilterObjListPtr;
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typedef struct _virNWFilterDriverState virNWFilterDriverState;
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typedef virNWFilterDriverState *virNWFilterDriverStatePtr;
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struct _virNWFilterDriverState {
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virMutex lock;
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bool privileged;
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/* pid file FD, ensures two copies of the driver can't use the same root */
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int lockFD;
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virNWFilterObjListPtr nwfilters;
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virNWFilterBindingObjListPtr bindings;
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char *stateDir;
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char *configDir;
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char *bindingDir;
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};
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virNWFilterDefPtr
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virNWFilterObjGetDef(virNWFilterObjPtr obj);
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virNWFilterDefPtr
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virNWFilterObjGetNewDef(virNWFilterObjPtr obj);
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bool
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virNWFilterObjWantRemoved(virNWFilterObjPtr obj);
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virNWFilterObjListPtr
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virNWFilterObjListNew(void);
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void
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virNWFilterObjListFree(virNWFilterObjListPtr nwfilters);
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void
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virNWFilterObjListRemove(virNWFilterObjListPtr nwfilters,
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virNWFilterObjPtr obj);
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virNWFilterObjPtr
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virNWFilterObjListFindByUUID(virNWFilterObjListPtr nwfilters,
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const unsigned char *uuid);
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virNWFilterObjPtr
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virNWFilterObjListFindByName(virNWFilterObjListPtr nwfilters,
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const char *name);
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virNWFilterObjPtr
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virNWFilterObjListFindInstantiateFilter(virNWFilterObjListPtr nwfilters,
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const char *filtername);
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virNWFilterObjPtr
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virNWFilterObjListAssignDef(virNWFilterObjListPtr nwfilters,
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virNWFilterDefPtr def);
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int
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virNWFilterObjTestUnassignDef(virNWFilterObjPtr obj);
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typedef bool
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(*virNWFilterObjListFilter)(virConnectPtr conn,
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virNWFilterDefPtr def);
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int
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virNWFilterObjListNumOfNWFilters(virNWFilterObjListPtr nwfilters,
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virConnectPtr conn,
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virNWFilterObjListFilter filter);
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int
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virNWFilterObjListGetNames(virNWFilterObjListPtr nwfilters,
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virConnectPtr conn,
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virNWFilterObjListFilter filter,
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char **const names,
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int maxnames);
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int
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virNWFilterObjListExport(virConnectPtr conn,
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virNWFilterObjListPtr nwfilters,
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virNWFilterPtr **filters,
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virNWFilterObjListFilter filter);
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int
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virNWFilterObjListLoadAllConfigs(virNWFilterObjListPtr nwfilters,
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const char *configDir);
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void
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virNWFilterObjLock(virNWFilterObjPtr obj);
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void
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virNWFilterObjUnlock(virNWFilterObjPtr obj);
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