libvirt/src/qemu/qemu_conf.h
Daniel P. Berrange 558b7fd03d Add infrastructure to automatically destroy guests when a connection closes
Sometimes it is useful to be able to automatically destroy a guest when
a connection is closed. For example, kill an incoming migration if
the client managing the migration dies. This introduces a map between
guest 'uuid' strings and virConnectPtr objects. When a connection is
closed, any associated guests are killed off.

* src/qemu/qemu_conf.h: Add autokill hash table to qemu driver
* src/qemu/qemu_process.c, src/qemu/qemu_process.h: Add APIs
  for performing autokill of guests associated with a connection
* src/qemu/qemu_driver.c: Initialize autodestroy map
2011-06-24 12:15:10 +01:00

163 lines
4.2 KiB
C

/*
* qemu_conf.h: QEMU configuration management
*
* Copyright (C) 2006-2007, 2009-2010 Red Hat, Inc.
* Copyright (C) 2006 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#ifndef __QEMUD_CONF_H
# define __QEMUD_CONF_H
# include <config.h>
# include "ebtables.h"
# include "internal.h"
# include "bridge.h"
# include "capabilities.h"
# include "network_conf.h"
# include "domain_conf.h"
# include "domain_event.h"
# include "threads.h"
# include "security/security_manager.h"
# include "cgroup.h"
# include "pci.h"
# include "cpu_conf.h"
# include "driver.h"
# include "bitmap.h"
# include "macvtap.h"
# include "command.h"
# include "threadpool.h"
# include "locking/lock_manager.h"
# define QEMUD_CPUMASK_LEN CPU_SETSIZE
/* Main driver state */
struct qemud_driver {
virMutex lock;
virThreadPoolPtr workerPool;
int privileged;
uid_t user;
gid_t group;
int dynamicOwnership;
unsigned int qemuVersion;
int nextvmid;
virCgroupPtr cgroup;
int cgroupControllers;
char **cgroupDeviceACL;
virDomainObjList domains;
brControl *brctl;
/* These four directories are ones libvirtd uses (so must be root:root
* to avoid security risk from QEMU processes */
char *configDir;
char *autostartDir;
char *logDir;
char *stateDir;
/* These two directories are ones QEMU processes use (so must match
* the QEMU user/group */
char *libDir;
char *cacheDir;
char *saveDir;
char *snapshotDir;
unsigned int vncAutoUnixSocket : 1;
unsigned int vncTLS : 1;
unsigned int vncTLSx509verify : 1;
unsigned int vncSASL : 1;
char *vncTLSx509certdir;
char *vncListen;
char *vncPassword;
char *vncSASLdir;
unsigned int spiceTLS : 1;
char *spiceTLSx509certdir;
char *spiceListen;
char *spicePassword;
char *hugetlbfs_mount;
char *hugepage_path;
unsigned int macFilter : 1;
ebtablesContext *ebtables;
unsigned int relaxedACS : 1;
unsigned int vncAllowHostAudio : 1;
unsigned int clearEmulatorCapabilities : 1;
unsigned int allowDiskFormatProbing : 1;
unsigned int setProcessName : 1;
int maxProcesses;
virCapsPtr caps;
virDomainEventStatePtr domainEventState;
char *securityDriverName;
virSecurityManagerPtr securityManager;
char *saveImageFormat;
char *dumpImageFormat;
char *autoDumpPath;
pciDeviceList *activePciHostdevs;
virBitmapPtr reservedVNCPorts;
virSysinfoDefPtr hostsysinfo;
virLockManagerPluginPtr lockManager;
/* Mapping of 'char *uuidstr' -> virConnectPtr
* of guests which will be automatically killed
* when the virConnectPtr is closed*/
virHashTablePtr autodestroy;
};
typedef struct _qemuDomainCmdlineDef qemuDomainCmdlineDef;
typedef qemuDomainCmdlineDef *qemuDomainCmdlineDefPtr;
struct _qemuDomainCmdlineDef {
unsigned int num_args;
char **args;
unsigned int num_env;
char **env_name;
char **env_value;
};
/* Port numbers used for KVM migration. */
# define QEMUD_MIGRATION_FIRST_PORT 49152
# define QEMUD_MIGRATION_NUM_PORTS 64
# define qemuReportError(code, ...) \
virReportErrorHelper(VIR_FROM_QEMU, code, __FILE__, \
__FUNCTION__, __LINE__, __VA_ARGS__)
void qemuDriverLock(struct qemud_driver *driver);
void qemuDriverUnlock(struct qemud_driver *driver);
int qemudLoadDriverConfig(struct qemud_driver *driver,
const char *filename);
#endif /* __QEMUD_CONF_H */