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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/bhyve/driver.pid In unprivileged libvirtd this ends up locking /run/user/$UID/libvirt/bhyve/run/driver.pid NB, the latter can vary depending on $XDG_RUNTIME_DIR Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/*
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* bhyve_utils.h: bhyve utils
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*
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* Copyright (C) 2014 Roman Bogorodskiy
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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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*/
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#pragma once
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#include "driver.h"
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#include "domain_event.h"
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#include "configmake.h"
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#include "virdomainobjlist.h"
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#include "virthread.h"
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#include "virclosecallbacks.h"
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#include "virportallocator.h"
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#define BHYVE_AUTOSTART_DIR SYSCONFDIR "/libvirt/bhyve/autostart"
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#define BHYVE_CONFIG_DIR SYSCONFDIR "/libvirt/bhyve"
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#define BHYVE_STATE_DIR LOCALSTATEDIR "/run/libvirt/bhyve"
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#define BHYVE_LOG_DIR LOCALSTATEDIR "/log/libvirt/bhyve"
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typedef struct _virBhyveDriverConfig virBhyveDriverConfig;
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typedef struct _virBhyveDriverConfig *virBhyveDriverConfigPtr;
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struct _virBhyveDriverConfig {
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virObject parent;
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char *firmwareDir;
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};
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struct _bhyveConn {
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virMutex lock;
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virBhyveDriverConfigPtr config;
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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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virDomainObjListPtr domains;
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virCapsPtr caps;
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virDomainXMLOptionPtr xmlopt;
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char *pidfile;
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virSysinfoDefPtr hostsysinfo;
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virObjectEventStatePtr domainEventState;
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virCloseCallbacksPtr closeCallbacks;
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virPortAllocatorRangePtr remotePorts;
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unsigned bhyvecaps;
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unsigned grubcaps;
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};
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typedef struct _bhyveConn bhyveConn;
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typedef struct _bhyveConn *bhyveConnPtr;
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struct bhyveAutostartData {
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bhyveConnPtr driver;
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virConnectPtr conn;
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};
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void bhyveDriverLock(bhyveConnPtr driver);
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void bhyveDriverUnlock(bhyveConnPtr driver);
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