libdb.pm.in 137 KB
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#!/usr/bin/perl -w

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#
# EMULAB-COPYRIGHT
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# Copyright (c) 2000-2006 University of Utah and the Flux Group.
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# All rights reserved.
#

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#
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# A library of useful DB stuff. Mostly things that get done a lot.
# Saves typing.
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#
# XXX: The notion of "uid" is a tad confused. A unix uid is a number,
#      while in the DB a user uid is a string (equiv to unix login).
#      Needs to be cleaned up.
#
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package libdb;
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use strict;
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use Exporter;
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use vars qw(@ISA @EXPORT);
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@ISA = "Exporter";
@EXPORT =
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    qw ( NODERELOADING_PID NODERELOADING_EID NODEDEAD_PID NODEDEAD_EID
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	 OLDRESERVED_PID OLDRESERVED_EID NFREELOCKED_PID NFREELOCKED_EID 
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	 NODEBOOTSTATUS_OKAY NODEBOOTSTATUS_FAILED NODEBOOTSTATUS_UNKNOWN
	 NODESTARTSTATUS_NOSTATUS PROJMEMBERTRUST_NONE PROJMEMBERTRUST_USER
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	 PROJMEMBERTRUST_ROOT PROJMEMBERTRUST_GROUPROOT
	 PROJMEMBERTRUST_PROJROOT

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	 PROJROOT GROUPROOT USERROOT TBOPSPID EXPTLOGNAME
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	 PLABMOND_PID PLABMOND_EID PLABHOLDING_PID PLABHOLDING_EID

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	 TBTrustConvert TBMinTrust TBGrpTrust TBProjTrust MapNumericUID
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	 TB_NODEACCESS_READINFO TB_NODEACCESS_MODIFYINFO
	 TB_NODEACCESS_LOADIMAGE TB_NODEACCESS_REBOOT
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	 TB_NODEACCESS_POWERCYCLE TB_NODEACCESS_MODIFYVLANS
	 TB_NODEACCESS_MIN TB_NODEACCESS_MAX
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	 NODEFAILMODE_FATAL NODEFAILMODE_NONFATAL NODEFAILMODE_IGNORE

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	 TB_USERINFO_READINFO TB_USERINFO_MODIFYINFO
	 TB_USERINFO_MIN TB_USERINFO_MAX

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	 USERSTATUS_ACTIVE USERSTATUS_FROZEN
	 USERSTATUS_UNAPPROVED USERSTATUS_UNVERIFIED USERSTATUS_NEWUSER
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	 TB_EXPT_READINFO TB_EXPT_MODIFY TB_EXPT_DESTROY TB_EXPT_UPDATE
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	 TB_EXPT_MIN TB_EXPT_MAX

	 TB_PROJECT_READINFO TB_PROJECT_MAKEGROUP
	 TB_PROJECT_EDITGROUP TB_PROJECT_DELGROUP
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	 TB_PROJECT_GROUPGRABUSERS TB_PROJECT_BESTOWGROUPROOT
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	 TB_PROJECT_LEADGROUP TB_PROJECT_ADDUSER
	 TB_PROJECT_DELUSER TB_PROJECT_MAKEOSID
	 TB_PROJECT_DELOSID TB_PROJECT_MAKEIMAGEID TB_PROJECT_DELIMAGEID
	 TB_PROJECT_CREATEEXPT TB_PROJECT_MIN TB_PROJECT_MAX

	 TB_OSID_READINFO TB_OSID_CREATE
	 TB_OSID_DESTROY TB_OSID_MIN TB_OSID_MAX

	 TB_IMAGEID_READINFO TB_IMAGEID_MODIFYINFO
	 TB_IMAGEID_CREATE TB_IMAGEID_DESTROY
	 TB_IMAGEID_ACCESS TB_IMAGEID_MIN TB_IMAGEID_MAX
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	 DBLIMIT_NSFILESIZE NODERELOADPENDING_EID
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	 NODEREPOSITIONING_PID NODEREPOSITIONING_EID NODEREPOSPENDING_EID

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	 EXPTSTATE_NEW EXPTSTATE_PRERUN EXPTSTATE_SWAPPED EXPTSTATE_SWAPPING
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	 EXPTSTATE_ACTIVATING EXPTSTATE_ACTIVE EXPTSTATE_PANICED
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	 EXPTSTATE_TERMINATING EXPTSTATE_TERMINATED EXPTSTATE_QUEUED
	 EXPTSTATE_MODIFY_PARSE EXPTSTATE_MODIFY_REPARSE EXPTSTATE_MODIFY_RESWAP
	 EXPTSTATE_RESTARTING
	 BATCHSTATE_LOCKED BATCHSTATE_UNLOCKED
	 EXPTCANCEL_CLEAR EXPTCANCEL_TERM EXPTCANCEL_SWAP
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	 TBSetCancelFlag TBGetCancelFlag
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	 TB_NODELOGTYPE_MISC TB_NODELOGTYPES TB_DEFAULT_NODELOGTYPE
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	 TB_DEFAULT_RELOADTYPE TB_RELOADTYPE_FRISBEE TB_RELOADTYPE_NETDISK
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	 TB_EXPTPRIORITY_LOW TB_EXPTPRIORITY_HIGH

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	 TB_ASSIGN_TOOFEWNODES TB_OPSPID
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	 TBDB_TBEVENT_NODESTATE TBDB_TBEVENT_NODEOPMODE TBDB_TBEVENT_CONTROL
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	 TBDB_TBEVENT_COMMAND
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	 TBDB_NODESTATE_ISUP TBDB_NODESTATE_REBOOTING TBDB_NODESTATE_REBOOTED
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	 TBDB_NODESTATE_SHUTDOWN TBDB_NODESTATE_BOOTING TBDB_NODESTATE_TBSETUP
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	 TBDB_NODESTATE_RELOADSETUP TBDB_NODESTATE_RELOADING
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	 TBDB_NODESTATE_RELOADDONE TBDB_NODESTATE_RELOADDONE_V2
	 TBDB_NODESTATE_UNKNOWN
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	 TBDB_NODESTATE_PXEWAIT TBDB_NODESTATE_PXEWAKEUP
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	 TBDB_NODESTATE_PXEBOOTING TBDB_NODESTATE_ALWAYSUP
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	 TBDB_NODESTATE_MFSSETUP TBDB_NODESTATE_TBFAILED
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	 TBDB_NODESTATE_POWEROFF
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	 TBDB_NODEOPMODE_NORMAL TBDB_NODEOPMODE_DELAYING
	 TBDB_NODEOPMODE_UNKNOWNOS TBDB_NODEOPMODE_RELOADING
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	 TBDB_NODEOPMODE_NORMALv1 TBDB_NODEOPMODE_MINIMAL
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	 TBDB_NODEOPMODE_RELOAD TBDB_NODEOPMODE_RELOADMOTE
	 TBDB_NODEOPMODE_DELAY
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	 TBDB_NODEOPMODE_BOOTWHAT
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	 TBDB_NODEOPMODE_ANY
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	 TBDB_NODEOPMODE_UNKNOWN
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	 TBDB_COMMAND_REBOOT
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	 TBDB_COMMAND_POWEROFF TBDB_COMMAND_POWERON TBDB_COMMAND_POWERCYCLE

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	 TBDB_STATED_TIMEOUT_REBOOT TBDB_STATED_TIMEOUT_NOTIFY
	 TBDB_STATED_TIMEOUT_CMDRETRY

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	 TBDB_ALLOCSTATE_FREE_CLEAN TBDB_ALLOCSTATE_FREE_DIRTY
	 TBDB_ALLOCSTATE_DOWN TBDB_ALLOCSTATE_RELOAD_TO_FREE
	 TBDB_ALLOCSTATE_RELOAD_PENDING TBDB_ALLOCSTATE_RES_RELOAD
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	 TBDB_ALLOCSTATE_RES_INIT_DIRTY TBDB_ALLOCSTATE_RES_INIT_CLEAN
	 TBDB_ALLOCSTATE_RES_REBOOT_DIRTY TBDB_ALLOCSTATE_RES_REBOOT_CLEAN
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	 TBDB_ALLOCSTATE_RES_READY TBDB_ALLOCSTATE_UNKNOWN
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	 TBDB_ALLOCSTATE_RES_TEARDOWN TBDB_ALLOCSTATE_DEAD
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	 TBDB_ALLOCSTATE_RES_RECONFIG
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	 TBDB_STATS_PRELOAD TBDB_STATS_START TBDB_STATS_TERMINATE
	 TBDB_STATS_SWAPIN TBDB_STATS_SWAPOUT TBDB_STATS_SWAPMODIFY
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	 TBDB_STATS_FLAGS_IDLESWAP TBDB_STATS_FLAGS_PREMODIFY
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	 TBDB_STATS_FLAGS_START TBDB_STATS_FLAGS_PRESWAPIN
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	 TBDB_JAILIPBASE TBDB_JAILIPMASK

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	 TBDB_RSRVROLE_NODE TBDB_RSRVROLE_VIRTHOST TBDB_RSRVROLE_DELAYNODE
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	 TBDB_RSRVROLE_SIMHOST
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	 TBDB_EXPT_WORKDIR
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	 TBSetNodeEventState TBGetNodeEventState
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	 TBNodeEventStateUpdated
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	 TBSetNodeAllocState TBGetNodeAllocState
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	 TBSetNodeOpMode TBGetNodeOpMode TBSetNodeNextOpMode
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	 TB_OSID_MBKERNEL 
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	 TB_OSID_FREEBSD_MFS TB_OSID_FRISBEE_MFS
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	 TBBootWhat TBNodeStateTimeout
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	 TBDB_TBCONTROL_RESET TBDB_TBCONTROL_RELOADDONE
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	 TBDB_TBCONTROL_RELOADDONE_V2
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	 TBDB_TBCONTROL_TIMEOUT TBDB_NO_STATE_TIMEOUT
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	 TBDB_TBCONTROL_PXEBOOT TBDB_TBCONTROL_BOOTING
	 TBDB_TBCONTROL_CHECKGENISUP
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	 TBDB_LOWVPORT TBDB_MAXVPORT TBDB_PORTRANGE

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	 TBDB_PHYSICAL_NODE_TABLES

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	 TBAdmin TBOpsGuy TBProjAccessCheck TBNodeAccessCheck TBOSIDAccessCheck
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	 TBImageIDAccessCheck TBExptAccessCheck ExpLeader MarkNodeDown
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	 SetNodeBootStatus OSFeatureSupported IsShelved NodeidToExp NodeidToExpOldReserved
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	 UserDBInfo DBQuery DBQueryFatal DBQueryWarn DBWarn DBFatal DBErr
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	 NewTBDBHandle DBQueryN DBQueryFatalN DBQueryWarnN DBErrN
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	 DBQuoteSpecial UNIX2DBUID ExpState SetExpState ProjLeader
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	 ExpNodes ExpNodeVnames ExpNodesOldReserved
	 DBDateTime DefaultImageID GroupLeader TBGroupUnixInfo
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	 TBValidNodeLogType TBValidNodeName TBSetNodeLogEntry
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	 TBSetSchedReload MapNodeOSID TBLockExp TBUnLockExp TBSetExpSwapTime
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	 TBUnixGroupList TBOSID TBOSMaxConcurrent TBOSCountInstances
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	 TBResolveNextOSID TBOsidToPid TBOSIDRebootWaittime
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	 TBOSLoadMaxOkay TBImageLoadMaxOkay TBImageID ExpSwapper
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	 TBdbfork TBDBDisconnect VnameToNodeid TBExpLocked
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	 TBIsNodeRemote TBExptSetLogFile TBExptClearLogFile TBExptGetLogFile
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	 TBIsNodeImageable TBIsNodeVirtual TBControlNetIP TBPhysNodeID
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	 TBExptOpenLogFile TBExptCloseLogFile TBExptCreateLogFile
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	 TBNodeUpdateAccountsByPid TBNodeUpdateAccountsByType
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	 TBNodeUpdateAccountsByUID
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	 TBSaveExpLogFiles TBExptWorkDir TBExptUserDir TBExptLogDir
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	 TBExptDestroy TBIPtoNodeID TBNodeBootReset TBNodeStateWait
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	 TBLeaderMailList ExpGroup TBExptSetSwapUID TBExptSetThumbNail
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	 TBNodeAllocCheck TBPlabNodeUsername MarkPhysNodeDown TBExptIsElabInElab
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	 TBExptFirewall TBNodeFirewall TBExptFirewallAndPort
	 TBSetExptFirewallVlan TBClearExptFirewallVlan
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	 TBNodeConsoleTail TBExptGetSwapoutAction TBExptGetSwapState
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	 TBNodeSubNodes
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	 TBNodeAdminOSID TBNodeDiskloadOSID
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	 TBNodeType TBNodeTypeProcInfo TBNodeTypeBiosWaittime
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	 TBExptRemoveVirtualState TBExptBackupVirtualState
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	 TBExptRestoreVirtualState

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	 TBExptRemovePhysicalState TBExptBackupPhysicalState
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	 TBExptRestorePhysicalState TBExptClearBackupState
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	 TBExptPortRange

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	 TBDB_WIDEAREA_LOCALNODE
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	 TBWideareaNodeID TBTipServers
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	 TBSiteVarExists TBGetSiteVar TBSetSiteVar
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	 TBActivityReport GatherSwapStats GatherAssignStats
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	 TBAvailablePCs
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	 TBDB_IFACEROLE_CONTROL TBDB_IFACEROLE_EXPERIMENT
	 TBDB_IFACEROLE_JAIL TBDB_IFACEROLE_FAKE TBDB_IFACEROLE_OTHER
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	 TBDB_IFACEROLE_GW TBDB_IFACEROLE_OUTER_CONTROL
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	 TBDB_ROUTERTYPE_NONE	TBDB_ROUTERTYPE_OSPF
	 TBDB_ROUTERTYPE_STATIC TBDB_ROUTERTYPE_MANUAL
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	 TBDB_EVENTKEY TBDB_WEBKEY
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	 TBDB_CHECKDBSLOT_NOFLAGS TBDB_CHECKDBSLOT_WARN TBDB_CHECKDBSLOT_ERROR
         max min TBcheck_dbslot
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	 hash_recurse array_recurse hash_recurse2 array_recurse2
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	 TBGetUniqueIndex
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	 TBExptMinMaxNodes TBExptSecurityLevel TBExptIDX
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	 TBDB_SECLEVEL_GREEN TBDB_SECLEVEL_BLUE TBDB_SECLEVEL_YELLOW
	 TBDB_SECLEVEL_ORANGE TBDB_SECLEVEL_RED TBDB_SECLEVEL_ZAPDISK
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	 TBExptSetPanicBit TBExptGetPanicBit TBExptClearPanicBit
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	 TB_NODEHISTORY_OP_FREE TB_NODEHISTORY_OP_ALLOC TB_NODEHISTORY_OP_MOVE
	 TBSetNodeHistory

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	 TBGetOSBootCmd

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	 TBRobotLabExpt

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	 TBExptContainsNodeCT

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	 );
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# Must come after package declaration!
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use lib '@prefix@/lib';
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use libtblog_simple;
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use English;
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use File::Basename;
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use POSIX qw(strftime);
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require Mysql;
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use vars qw($DBQUERY_MAXTRIES $DBCONN_MAXTRIES @EXPORT_OK @virtualTables
	    @physicalTables);
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# Configure variables
my $TB		= "@prefix@";
my $DBNAME	= "@TBDBNAME@";
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my $TBOPS       = "@TBOPSEMAIL@";
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my $EVENTSYS    = "@EVENTSYS@";
my $BOSSNODE    = "@BOSSNODE@";
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my $TESTMODE    = @TESTMODE@;
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my $TBOPSPID	= "emulab-ops";
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my $SCRIPTNAME  = "Unknown";
my $PROJROOT    = "/proj";
my $GROUPROOT   = "/groups";
my $USERROOT    = "/users";
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my $EXPTLOGNAME = "activity.log";
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if ($EVENTSYS) {
    require event;
    import event;
}

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# Untainted scriptname for email below.
if ($PROGRAM_NAME =~ /^([-\w\.\/]+)$/) {
    $SCRIPTNAME = basename($1);
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}
else {
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    $SCRIPTNAME = "Tainted";
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}

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#
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# Set up for querying the database. Note that fork causes a reconnect
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# to the DB in the child.
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#
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my @DB;
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$DBQUERY_MAXTRIES = 1;
$DBCONN_MAXTRIES  = 5;
@EXPORT_OK        = qw($DBQUERY_MAXTRIES $DBCONN_MAXTRIES);
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sub TBDBConnect($)
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{
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    my ($dbnum) = @_;
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    my $maxtries = $DBCONN_MAXTRIES;
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    #
    # Construct a 'username' from the name of this script and the user who
    # ran it. This is for accounting purposes.
    #
    my $name = getpwuid($UID);
    if (!$name) {
	$name = "uid$UID";
    }
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    my $dbuser = "$SCRIPTNAME:$name:$PID";
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    while ($maxtries) {
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	$DB[$dbnum] = Mysql->connect("localhost", $DBNAME, $dbuser, "none");
	if (defined($DB[$dbnum])) {
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	    last;
	}
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	$maxtries--;
	sleep(1);
    }
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    if (!defined($DB[$dbnum])) {
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	print STDERR "Cannot connect to DB after several attempts!\n";
	# Ensure consistent error value. 
	exit(-1);
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    }
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    $DB[$dbnum]->{'dbh'}->{'PrintError'} = 0;
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    $Mysql::QUIET = 1;
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}
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TBDBConnect(0);
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sub TBdbfork()
{
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    select(undef, undef, undef, 0.3);
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    for (my $i = 0; $i < @DB; $i++) {
	undef($DB[$i]);
	TBDBConnect($i);
    }
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    if ($EVENTSYS) {
	EventFork();
    }
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}

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# To avoid keeping a mysql connection around.
sub TBDBDisconnect()
{
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    for (my $i = 0; $i < @DB; $i++) {
	undef($DB[$i]);
    }
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    select(undef, undef, undef, 0.3);
}

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# Create a new DB handle and return the handle number
sub NewTBDBHandle() {
    my $dbnum = @DB;
    TBDBConnect($dbnum);
    return $dbnum;
}

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#
# Record last DB error string.
#
my $DBErrorString = "";

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#
# Needs to be config'ed.
#
sub TBDB_EXPT_WORKDIR()		{ "/usr/testbed/expwork"; }
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#
# Define exported "constants". Basically, these are just perl subroutines
# that look like constants cause you do not need to call a perl subroutine
# with parens. That is, FOO and FOO() are the same thing.
#
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sub NODERELOADING_PID()		{ $TBOPSPID; }
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sub NODERELOADING_EID()		{ "reloading"; }
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sub NODERELOADPENDING_EID()	{ "reloadpending"; }
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sub NODEREPOSITIONING_PID()	{ $TBOPSPID; }
sub NODEREPOSITIONING_EID()	{ "repositioning"; }
sub NODEREPOSPENDING_EID()	{ "repositionpending"; }
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sub NODEDEAD_PID()		{ $TBOPSPID; }
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sub NODEDEAD_EID()		{ "hwdown"; }
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sub PLABMOND_PID()		{ $TBOPSPID; }
sub PLABMOND_EID()		{ "plab-monitor"; }
sub PLABHOLDING_PID()		{ $TBOPSPID; }
sub PLABHOLDING_EID()		{ "plabnodes"; }
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sub OLDRESERVED_PID()		{ $TBOPSPID; }
sub OLDRESERVED_EID()		{ "oldreserved"; }
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sub NFREELOCKED_PID()		{ $TBOPSPID; }
sub NFREELOCKED_EID()		{ "nfree-locked"; }
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sub PROJROOT()			{ $PROJROOT; }
sub GROUPROOT()			{ $GROUPROOT; }
sub USERROOT()			{ $USERROOT; }
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sub TBOPSPID()			{ $TBOPSPID; }
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sub EXPTLOGNAME()		{ $EXPTLOGNAME; }
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sub NODEBOOTSTATUS_OKAY()	{ "okay" ; }
sub NODEBOOTSTATUS_FAILED()	{ "failed"; }
sub NODEBOOTSTATUS_UNKNOWN()	{ "unknown"; }
sub NODESTARTSTATUS_NOSTATUS()	{ "none"; }

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sub NODEFAILMODE_FATAL()	{ "fatal"; }
sub NODEFAILMODE_NONFATAL()	{ "nonfatal"; }
sub NODEFAILMODE_IGNORE()	{ "ignore"; }

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# Experiment states
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sub EXPTSTATE_NEW()		{ "new"; }
sub EXPTSTATE_PRERUN()		{ "prerunning"; }
sub EXPTSTATE_SWAPPED()		{ "swapped"; }
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sub EXPTSTATE_QUEUED()		{ "queued"; }
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sub EXPTSTATE_SWAPPING()	{ "swapping"; }
sub EXPTSTATE_ACTIVATING()	{ "activating"; }
sub EXPTSTATE_ACTIVE()		{ "active"; }
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sub EXPTSTATE_PANICED()		{ "paniced"; }
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sub EXPTSTATE_TERMINATING()	{ "terminating"; }
sub EXPTSTATE_TERMINATED()	{ "ended"; }
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sub EXPTSTATE_MODIFY_PARSE()	{ "modify_parse"; }
sub EXPTSTATE_MODIFY_REPARSE()	{ "modify_reparse"; }
sub EXPTSTATE_MODIFY_RESWAP()	{ "modify_reswap"; }
sub EXPTSTATE_RESTARTING()	{ "restarting"; }
# For the batch_daemon.
sub BATCHSTATE_LOCKED()		{ "locked";}
sub BATCHSTATE_UNLOCKED()	{ "unlocked";}
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# Cancel flags
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sub EXPTCANCEL_CLEAR()		{ 0 ;}
sub EXPTCANCEL_TERM()		{ 1 ;}
sub EXPTCANCEL_SWAP()		{ 2 ;}
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sub USERSTATUS_ACTIVE()		{ "active"; }
sub USERSTATUS_FROZEN()		{ "frozen"; }
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sub USERSTATUS_UNAPPROVED()	{ "unapproved"; }
sub USERSTATUS_UNVERIFIED()	{ "unverified"; }
sub USERSTATUS_NEWUSER()	{ "newuser"; }
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#
# We want valid project membership to be non-zero for easy membership
# testing. Specific trust levels are encoded thusly.
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#
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sub PROJMEMBERTRUST_NONE()	{ 0; }
sub PROJMEMBERTRUST_USER()	{ 1; }
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sub PROJMEMBERTRUST_ROOT()	{ 2; }
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sub PROJMEMBERTRUST_LOCALROOT()	{ 2; }
sub PROJMEMBERTRUST_GROUPROOT()	{ 3; }
sub PROJMEMBERTRUST_PROJROOT()	{ 4; }
sub PROJMEMBERTRUST_ADMIN()	{ 5; }

#
# Access types. Duplicated in the web interface. Make changes there too!
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#
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# Things you can do to a node.
sub TB_NODEACCESS_READINFO()	{ 1; }
sub TB_NODEACCESS_MODIFYINFO()	{ 2; }
sub TB_NODEACCESS_LOADIMAGE()	{ 3; }
sub TB_NODEACCESS_REBOOT()	{ 4; }
sub TB_NODEACCESS_POWERCYCLE()	{ 5; }
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sub TB_NODEACCESS_MODIFYVLANS()	{ 6; }
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sub TB_NODEACCESS_MIN()		{ TB_NODEACCESS_READINFO; }
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sub TB_NODEACCESS_MAX()		{ TB_NODEACCESS_MODIFYVLANS; }
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# User Info (modinfo web page, etc).
sub TB_USERINFO_READINFO()	{ 1; }
sub TB_USERINFO_MODIFYINFO()	{ 2; }
sub TB_USERINFO_MIN()		{ TB_USERINFO_READINFO; }
sub TB_USERINFO_MAX()		{ TB_USERINFO_MODIFYINFO; }

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# Experiments.
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sub TB_EXPT_READINFO()		{ 1; }
sub TB_EXPT_MODIFY()		{ 2; }
sub TB_EXPT_DESTROY()		{ 3; }
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sub TB_EXPT_UPDATE()		{ 4; }
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sub TB_EXPT_MIN()		{ TB_EXPT_READINFO; }
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sub TB_EXPT_MAX()		{ TB_EXPT_UPDATE; }
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# Projects.
sub TB_PROJECT_READINFO()	{ 1; }
sub TB_PROJECT_MAKEGROUP()	{ 2; }
sub TB_PROJECT_EDITGROUP()	{ 3; }
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sub TB_PROJECT_GROUPGRABUSERS() { 4; }
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sub TB_PROJECT_BESTOWGROUPROOT(){ 5; }
sub TB_PROJECT_DELGROUP()	{ 6; }
sub TB_PROJECT_LEADGROUP()	{ 7; }
sub TB_PROJECT_ADDUSER()	{ 8; }
sub TB_PROJECT_DELUSER()	{ 9; }
sub TB_PROJECT_MAKEOSID()	{ 10; }
sub TB_PROJECT_DELOSID()	{ 11; }
sub TB_PROJECT_MAKEIMAGEID()	{ 12; }
sub TB_PROJECT_DELIMAGEID()	{ 13; }
sub TB_PROJECT_CREATEEXPT()	{ 14; }
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sub TB_PROJECT_MIN()		{ TB_PROJECT_READINFO; }
sub TB_PROJECT_MAX()		{ TB_PROJECT_CREATEEXPT; }

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# OSIDs
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sub TB_OSID_READINFO()		{ 1; }
sub TB_OSID_CREATE()		{ 2; }
sub TB_OSID_DESTROY()		{ 3; }
sub TB_OSID_MIN()		{ TB_OSID_READINFO; }
sub TB_OSID_MAX()		{ TB_OSID_DESTROY; }

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# Magic OSID constants
sub TB_OSID_MBKERNEL()          { "_KERNEL_"; } # multiboot kernel OSID
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# Magic MFS constants
sub TB_OSID_FREEBSD_MFS()	{ "FREEBSD-MFS" };
sub TB_OSID_FRISBEE_MFS()	{ "FRISBEE-MFS" };
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# ImageIDs
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#
# Clarification:
# READINFO is read-only access to the image and its contents
# (This is what people get for shared images)
# ACCESS means complete power over the image and its [meta]data
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sub TB_IMAGEID_READINFO()	{ 1; }
sub TB_IMAGEID_MODIFYINFO()	{ 2; }
sub TB_IMAGEID_CREATE()		{ 3; }
sub TB_IMAGEID_DESTROY()	{ 4; }
sub TB_IMAGEID_ACCESS()		{ 5; }
sub TB_IMAGEID_MIN()		{ TB_IMAGEID_READINFO; }
sub TB_IMAGEID_MAX()		{ TB_IMAGEID_ACCESS; }
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# Node Log Types
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sub TB_NODELOGTYPE_MISC		{ "misc"; }
sub TB_NODELOGTYPES()		{ ( TB_NODELOGTYPE_MISC ) ; }
sub TB_DEFAULT_NODELOGTYPE()	{ TB_NODELOGTYPE_MISC; }

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# Node History Stuff.
sub TB_NODEHISTORY_OP_FREE	{ "free"; }
sub TB_NODEHISTORY_OP_ALLOC	{ "alloc"; }
sub TB_NODEHISTORY_OP_MOVE	{ "move"; }

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# Reload Types.
sub TB_RELOADTYPE_NETDISK()	{ "netdisk"; }
sub TB_RELOADTYPE_FRISBEE()	{ "frisbee"; }
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sub TB_DEFAULT_RELOADTYPE()	{ TB_RELOADTYPE_FRISBEE; }
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# Experiment priorities.
sub TB_EXPTPRIORITY_LOW()	{ 0; }
sub TB_EXPTPRIORITY_HIGH()	{ 20; }

# Assign exit status for too few nodes.
sub TB_ASSIGN_TOOFEWNODES()	{ 2; }

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# System PID.
sub TB_OPSPID()			{ $TBOPSPID; }

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#
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# Events we may want to send
#
sub TBDB_TBEVENT_NODESTATE	{ "TBNODESTATE"; }
sub TBDB_TBEVENT_NODEOPMODE	{ "TBNODEOPMODE"; }
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sub TBDB_TBEVENT_CONTROL	{ "TBCONTROL"; }
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sub TBDB_TBEVENT_COMMAND	{ "TBCOMMAND"; }
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sub TBDB_TBEVENT_EXPTSTATE	{ "TBEXPTSTATE"; }
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#
# For nodes, we use this set of events.
#
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sub TBDB_NODESTATE_ISUP()	{ "ISUP"; }
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sub TBDB_NODESTATE_ALWAYSUP()	{ "ALWAYSUP"; }
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sub TBDB_NODESTATE_REBOOTED()	{ "REBOOTED"; }
sub TBDB_NODESTATE_REBOOTING()	{ "REBOOTING"; }
sub TBDB_NODESTATE_SHUTDOWN()	{ "SHUTDOWN"; }
sub TBDB_NODESTATE_BOOTING()	{ "BOOTING"; }
sub TBDB_NODESTATE_TBSETUP()	{ "TBSETUP"; }
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sub TBDB_NODESTATE_RELOADSETUP(){ "RELOADSETUP"; }
sub TBDB_NODESTATE_MFSSETUP()   { "MFSSETUP"; }
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sub TBDB_NODESTATE_TBFAILED()	{ "TBFAILED"; }
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sub TBDB_NODESTATE_RELOADING()	{ "RELOADING"; }
sub TBDB_NODESTATE_RELOADDONE()	{ "RELOADDONE"; }
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sub TBDB_NODESTATE_RELOADDONE_V2(){ "RELOADDONEV2"; }
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sub TBDB_NODESTATE_UNKNOWN()	{ "UNKNOWN"; };
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sub TBDB_NODESTATE_PXEWAIT()	{ "PXEWAIT"; }
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sub TBDB_NODESTATE_PXEWAKEUP()	{ "PXEWAKEUP"; }
sub TBDB_NODESTATE_PXEBOOTING()	{ "PXEBOOTING"; }
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sub TBDB_NODESTATE_POWEROFF()	{ "POWEROFF"; }
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sub TBDB_NODEOPMODE_ANY		{ "*"; } # A wildcard opmode
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sub TBDB_NODEOPMODE_NORMAL	{ "NORMAL"; }
sub TBDB_NODEOPMODE_DELAYING	{ "DELAYING"; }
sub TBDB_NODEOPMODE_UNKNOWNOS	{ "UNKNOWNOS"; }
sub TBDB_NODEOPMODE_RELOADING	{ "RELOADING"; }
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sub TBDB_NODEOPMODE_NORMALv1	{ "NORMALv1"; }
sub TBDB_NODEOPMODE_MINIMAL	{ "MINIMAL"; }
sub TBDB_NODEOPMODE_RELOAD	{ "RELOAD"; }
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sub TBDB_NODEOPMODE_RELOADMOTE	{ "RELOAD-MOTE"; }
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sub TBDB_NODEOPMODE_DELAY	{ "DELAY"; }
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sub TBDB_NODEOPMODE_BOOTWHAT	{ "_BOOTWHAT_"; } # A redirection opmode
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sub TBDB_NODEOPMODE_UNKNOWN	{ "UNKNOWN"; }

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sub TBDB_COMMAND_REBOOT         { "REBOOT"; }
sub TBDB_COMMAND_POWEROFF       { "POWEROFF"; }
sub TBDB_COMMAND_POWERON        { "POWERON"; }
sub TBDB_COMMAND_POWERCYCLE     { "POWERCYCLE"; }

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sub TBDB_STATED_TIMEOUT_REBOOT  { "REBOOT"; }
sub TBDB_STATED_TIMEOUT_NOTIFY  { "NOTIFY"; }
sub TBDB_STATED_TIMEOUT_CMDRETRY{ "CMDRETRY"; }

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sub TBDB_ALLOCSTATE_FREE_CLEAN()       { "FREE_CLEAN"; }
sub TBDB_ALLOCSTATE_FREE_DIRTY()       { "FREE_DIRTY"; }
sub TBDB_ALLOCSTATE_DOWN()             { "DOWN"; }
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sub TBDB_ALLOCSTATE_DEAD()             { "DEAD"; }
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sub TBDB_ALLOCSTATE_RELOAD_TO_FREE()   { "RELOAD_TO_FREE"; }
sub TBDB_ALLOCSTATE_RELOAD_PENDING()   { "RELOAD_PENDING"; }
sub TBDB_ALLOCSTATE_RES_RELOAD()       { "RES_RELOAD"; }
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sub TBDB_ALLOCSTATE_RES_REBOOT_DIRTY() { "RES_REBOOT_DIRTY"; }
sub TBDB_ALLOCSTATE_RES_REBOOT_CLEAN() { "RES_REBOOT_CLEAN"; }
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sub TBDB_ALLOCSTATE_RES_INIT_DIRTY()   { "RES_INIT_DIRTY"; }
sub TBDB_ALLOCSTATE_RES_INIT_CLEAN()   { "RES_INIT_CLEAN"; }
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sub TBDB_ALLOCSTATE_RES_READY()        { "RES_READY"; }
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sub TBDB_ALLOCSTATE_RES_RECONFIG()     { "RES_RECONFIG"; }
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sub TBDB_ALLOCSTATE_RES_TEARDOWN()     { "RES_TEARDOWN"; }
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sub TBDB_ALLOCSTATE_UNKNOWN()          { "UNKNOWN"; };

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sub TBDB_TBCONTROL_RESET	{ "RESET"; }
sub TBDB_TBCONTROL_RELOADDONE	{ "RELOADDONE"; }
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sub TBDB_TBCONTROL_RELOADDONE_V2{ "RELOADDONEV2"; }
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sub TBDB_TBCONTROL_TIMEOUT	{ "TIMEOUT"; }
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sub TBDB_TBCONTROL_PXEBOOT	{ "PXEBOOT"; }
sub TBDB_TBCONTROL_BOOTING	{ "BOOTING"; }
sub TBDB_TBCONTROL_CHECKGENISUP	{ "CHECKGENISUP"; }
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# Constant we use for the timeout field when there is no timeout for a state
sub TBDB_NO_STATE_TIMEOUT	{ 0; }

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#
# Node name we use in the widearea_* tables to represent a generic local node.
# All local nodes are considered to have the same network characteristcs.
#
sub TBDB_WIDEAREA_LOCALNODE     { "boss"; }

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#
# We should list all of the DB limits.
#
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sub DBLIMIT_NSFILESIZE()	{ (2**24 - 1); }
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#
# Virtual nodes must operate within a restricted port range. The range
# is effective across all virtual nodes in the experiment. When an
# experiment is swapped in, allocate a subrange from this and setup
# all the vnodes to allocate from that range. We tell the user this
# range so this they can set up their programs to operate in that range.
#
sub TBDB_LOWVPORT()		{ 30000; }
sub TBDB_MAXVPORT()		{ 60000; }
sub TBDB_PORTRANGE()		{ 256;   }

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#
# STATS constants.
#
sub TBDB_STATS_PRELOAD()	{ "preload"; }
sub TBDB_STATS_START()		{ "start"; }
sub TBDB_STATS_TERMINATE()	{ "destroy"; }
sub TBDB_STATS_SWAPIN()		{ "swapin"; }
sub TBDB_STATS_SWAPOUT()	{ "swapout"; }
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sub TBDB_STATS_SWAPMODIFY()	{ "swapmod"; }
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sub TBDB_STATS_FLAGS_IDLESWAP()	{ 0x01; }
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sub TBDB_STATS_FLAGS_PREMODIFY(){ 0x02; }
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sub TBDB_STATS_FLAGS_START()    { 0x04; }
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sub TBDB_STATS_FLAGS_PRESWAPIN(){ 0x08; }
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# Do not export these variables!
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my $TBDB_STATS_STARTCLOCK;
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my $TBDB_STATS_SAVEDSWAPUID;
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# Jail.
sub TBDB_JAILIPBASE()		{ "@JAILIPBASE@"; }
sub TBDB_JAILIPMASK()		{ "@JAILIPMASK@"; }

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# Reserved node "roles"
sub TBDB_RSRVROLE_NODE()	{ "node"; }
sub TBDB_RSRVROLE_VIRTHOST()	{ "virthost"; }
sub TBDB_RSRVROLE_DELAYNODE()	{ "delaynode"; }
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sub TBDB_RSRVROLE_SIMHOST()	{ "simhost"; }
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# Interfaces roles.
sub TBDB_IFACEROLE_CONTROL()	{ "ctrl"; }
sub TBDB_IFACEROLE_EXPERIMENT()	{ "expt"; }
sub TBDB_IFACEROLE_JAIL()	{ "jail"; }
sub TBDB_IFACEROLE_FAKE()	{ "fake"; }
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sub TBDB_IFACEROLE_GW()		{ "gw"; }
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sub TBDB_IFACEROLE_OTHER()	{ "other"; }
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sub TBDB_IFACEROLE_OUTER_CONTROL(){ "outer_ctrl"; }
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# Routertypes.
sub TBDB_ROUTERTYPE_NONE()	{ "none"; }
sub TBDB_ROUTERTYPE_OSPF()	{ "ospf"; }
sub TBDB_ROUTERTYPE_STATIC()	{ "static"; }
sub TBDB_ROUTERTYPE_MANUAL()	{ "manual"; }

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# Key Stuff
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sub TBDB_EVENTKEY($$)	{ TBExptUserDir($_[0],$_[1]) . "/tbdata/eventkey"; }
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sub TBDB_WEBKEY($$)	{ TBExptUserDir($_[0],$_[1]) . "/tbdata/webkey"; }
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# Regex stuff
sub TBDB_CHECKDBSLOT_NOFLAGS()	{ 0x0; }
sub TBDB_CHECKDBSLOT_WARN()	{ 0x1; }
sub TBDB_CHECKDBSLOT_ERROR()	{ 0x2; }

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# Security Levels.
sub TBDB_SECLEVEL_GREEN()	{ 0; }
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sub TBDB_SECLEVEL_BLUE()	{ 1; }
sub TBDB_SECLEVEL_YELLOW()	{ 2; }
sub TBDB_SECLEVEL_ORANGE()	{ 3; }
sub TBDB_SECLEVEL_RED()		{ 4; }

# This is the level at which we get extremely cautious when swapping out
sub TBDB_SECLEVEL_ZAPDISK()	{ TBDB_SECLEVEL_YELLOW; }
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#
# A hash of all tables that contain information about physical nodes - the
# value for each key is the list of columns that could contain the node's ID.
#
sub TBDB_PHYSICAL_NODE_TABLES() {
    return (
	'current_reloads'	=> [ 'node_id' ],
	'delays'		=> [ 'node_id' ],
	'iface_counters'	=> [ 'node_id' ],
	'interfaces'		=> [ 'node_id' ],
	'interface_settings'	=> [ 'node_id' ],
	'last_reservation'	=> [ 'node_id' ],
	'linkdelays'		=> [ 'node_id' ],
	'location_info'		=> [ 'node_id' ],
	'next_reserve'		=> [ 'node_id' ],
	'node_activity'		=> [ 'node_id' ],
	'node_auxtypes'		=> [ 'node_id' ],
	'node_features'		=> [ 'node_id' ],
	'node_hostkeys'		=> [ 'node_id' ],
	'node_idlestats'	=> [ 'node_id' ],
	'node_status'   	=> [ 'node_id' ],
	'node_rusage'		=> [ 'node_id' ],
	'nodeipportnum'		=> [ 'node_id' ],
	'nodelog'		=> [ 'node_id' ],
	'nodes'			=> [ 'node_id', 'phys_nodeid' ],
	'nodeuidlastlogin'	=> [ 'node_id' ],
	'ntpinfo'		=> [ 'node_id' ],
	'outlets'		=> [ 'node_id' ],
	'partitions'		=> [ 'node_id' ],
	'plab_slice_nodes'	=> [ 'node_id' ],
	'port_counters'		=> [ 'node_id' ],
	'reserved'		=> [ 'node_id' ],
	'scheduled_reloads'	=> [ 'node_id' ],
	'state_triggers'	=> [ 'node_id' ],
	'switch_stacks'		=> [ 'node_id' ],
	'tiplines'		=> [ 'node_id' ],
	'tmcd_redirect'		=> [ 'node_id' ],
	'tunnels'		=> [ 'node_id' ],
	'uidnodelastlogin'	=> [ 'node_id' ],
	'v2pmap'		=> [ 'node_id' ],
	'veth_interfaces'	=> [ 'node_id' ],
	'widearea_accounts'	=> [ 'node_id' ],
	'widearea_delays'	=> [ 'node_id1', 'node_id2' ],
	'widearea_nodeinfo'	=> [ 'node_id' ],
	'widearea_recent'	=> [ 'node_id1', 'node_id2' ],
	'wires'			=> [ 'node_id1', 'node_id2' ],
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	'node_startloc'		=> [ 'node_id' ],
	'node_history'		=> [ 'node_id' ],
	'node_bootlogs'		=> [ 'node_id' ],
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    );
}

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#
# Auth stuff.
#

#
# Convert a trust string to the above numeric values.
#
sub TBTrustConvert($)
{
    my($trust_string) = @_;
    my $trust_value = 0;

    #
    # Convert string to value. Perhaps the DB should have done it this way?
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    #
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    if ($trust_string eq "none") {
	$trust_value = PROJMEMBERTRUST_NONE;
    }
    elsif ($trust_string eq "user") {
	$trust_value = PROJMEMBERTRUST_USER;
    }
    elsif ($trust_string eq "local_root") {
	$trust_value = PROJMEMBERTRUST_LOCALROOT;
    }
    elsif ($trust_string eq "group_root") {
	$trust_value = PROJMEMBERTRUST_GROUPROOT;
    }
    elsif ($trust_string eq "project_root") {
	$trust_value = PROJMEMBERTRUST_PROJROOT;
    }
    elsif ($trust_string eq "admin") {
	$trust_value = PROJMEMBERTRUST_ADMIN;
    }
    else {
	    die("*** Invalid trust value $trust_string!");
    }

    return $trust_value;
}

#
# Return true if the given trust string is >= to the minimum required.
# The trust value can be either numeric or a string; if a string its
# first converted to the numeric equiv.
#
sub TBMinTrust($$)
{
    my ($trust_value, $minimum) = @_;

    if ($minimum < PROJMEMBERTRUST_NONE ||
	$minimum > PROJMEMBERTRUST_ADMIN) {
	    die("*** Invalid minimum trust $minimum!");
    }

    #
    # Sleazy? How do you do a typeof in perl?
    #
    if (length($trust_value) != 1) {
	$trust_value = TBTrustConvert($trust_value);
    }
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    return $trust_value >= $minimum;
}

#
# Determine the trust level for a uid/pid/gid. That is, each uid will have
# a different trust level depending on the project/group in question.
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# Return that trust level as one of the numeric values above.
#
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# usage: TBGrpTrust($dbuid, $pid, $gid)
#        returns numeric trust value if a group member.
#        returns PROJMEMBERTRUST_NONE if not a group member.
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#
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sub TBGrpTrust($$$)
{
    my ($uid, $pid, $gid) = @_;

    #
    # No group, then use the default group.
    #
    if (! $gid) {
	$gid = $pid;
    }

    my $query_result =
	DBQueryFatal("select trust from group_membership ".
		     "where uid='$uid' and pid='$pid' and gid='$gid'");

    #
    # No membership is the same as no trust. True? Maybe an error instead?
    #
    if ($query_result->numrows == 0) {
	return PROJMEMBERTRUST_NONE;
    }

    my @row = $query_result->fetchrow_array();
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    my $trust_string = $row[0];
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    return TBTrustConvert($trust_string);
}

#
# Determine the project trust level for a uid/pid. This is the trust level
# for the default group in the project.
#
# usage: TBProjTrust($dbuid, $pid)
#        returns numeric trust value if a project member.
#        returns PROJMEMBERTRUST_NONE if not a project member.
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#
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sub TBProjTrust($$)
{
    my ($uid, $pid) = @_;
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    return TBGrpTrust($uid, $pid, $pid);
}

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#
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# Test admin status. Optional argument is the UID or Name to test. If not
# provided, then test the current UID.
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#
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# XXX Argument is *either* a numeric UID, or a string name.
#
# usage: TBAdmin([int or char* uid]);
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#        returns 1 if an admin type.
#        returns 0 if a mere user.
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#
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sub TBAdmin(;$)
{
    my($uid) = @_;
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    my($name);
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    #
    # No one is considered an admin unless they have the magic environment
    # variable set (so that you have to be a bit more explict about wanting
    # admin privs.) Use the withadminprivs script to get this variable set.
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    # Also check with HTTP_ at the front of the name, since this is required
    # to get it through suexec from the web scripts.
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    #
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    if (!($ENV{WITH_TB_ADMIN_PRIVS} || $ENV{HTTP_WITH_TB_ADMIN_PRIVS})) {
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	return 0;
    }

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    if (!defined($uid)) {
	$uid = $UID;
    }

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    #
    # Test if numeric. Map to name if it is.
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    #
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    if ($uid =~ /^[0-9]+$/) {
	($name) = getpwuid($uid)
	    or die "$uid not in passwd file\n";
    }
    else {
	$name = $uid;
    }
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    my $query_result =
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	DBQueryFatal("select admin from users where uid='$name'");
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    my @row = $query_result->fetchrow_array();
    if ($row[0] == 1) {
	return 1;
    }
    return 0;
}

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#
# Test whether current user is a member of the emulab-ops project.
# 
sub TBOpsGuy(;$)
{
    my($uid) = @_;
    my($name);

    if (!defined($uid)) {
	$uid = $UID;
    }

    #
    # Test if numeric. Map to name if it is.
    #
    if ($uid =~ /^[0-9]+$/) {
	($name) = getpwuid($uid)
	    or die "$uid not in passwd file\n";
    }
    else {
	$name = $uid;
    }
    return TBMinTrust(TBProjTrust($name, $TBOPSPID), PROJMEMBERTRUST_USER());
}

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#
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# Project permission checks. The group id (gid) can be undef, in which case
# the pid is used (ie: a default group check is made).
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#
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# Usage: TBProjAccessCheck($uid, $pid, $gid, $access_type)
#	 returns 0 if not allowed.
#        returns 1 if allowed.
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#
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sub TBProjAccessCheck($$$$)
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{
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    my ($uid, $pid, $gid, $access_type) = @_;
    my $mintrust;
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