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XrdFrmConfig.cc
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XrdFrmConfig.cc
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/******************************************************************************/
/* */
/* X r d F r m C o n f i g . c c */
/* */
/* (c) 2009 by the Board of Trustees of the Leland Stanford, Jr., University */
/* Produced by Andrew Hanushevsky for Stanford University under contract */
/* DE-AC02-76-SFO0515 with the Deprtment of Energy */
/* */
/* This file is part of the XRootD software suite. */
/* */
/* XRootD 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 3 of the License, or (at your */
/* option) any later version. */
/* */
/* XRootD 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 XRootD in a file called COPYING.LESSER (LGPL license) and file */
/* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */
/* */
/* The copyright holder's institutional names and contributor's names may not */
/* be used to endorse or promote products derived from this software without */
/* specific prior written permission of the institution or contributor. */
/******************************************************************************/
#include <unistd.h>
#include <ctype.h>
#include <dirent.h>
#include <string.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "XrdVersion.hh"
#include "Xrd/XrdInfo.hh"
#include "XrdFrc/XrdFrcTrace.hh"
#include "XrdFrc/XrdFrcUtils.hh"
#include "XrdFrm/XrdFrmCns.hh"
#include "XrdFrm/XrdFrmConfig.hh"
#include "XrdFrm/XrdFrmMonitor.hh"
#include "XrdNet/XrdNetAddr.hh"
#include "XrdNet/XrdNetCmsNotify.hh"
#include "XrdOfs/XrdOfsConfigPI.hh"
#include "XrdOss/XrdOss.hh"
#include "XrdOss/XrdOssSpace.hh"
#include "XrdOuc/XrdOuca2x.hh"
#include "XrdOuc/XrdOucEnv.hh"
#include "XrdOuc/XrdOucExport.hh"
#include "XrdOuc/XrdOucMsubs.hh"
#include "XrdOuc/XrdOucN2NLoader.hh"
#include "XrdOuc/XrdOucProg.hh"
#include "XrdOuc/XrdOucSiteName.hh"
#include "XrdOuc/XrdOucStream.hh"
#include "XrdOuc/XrdOucPList.hh"
#include "XrdOuc/XrdOucTList.hh"
#include "XrdOuc/XrdOucTokenizer.hh"
#include "XrdOuc/XrdOucUtils.hh"
#include "XrdSys/XrdSysError.hh"
#include "XrdSys/XrdSysHeaders.hh"
#include "XrdSys/XrdSysLogger.hh"
#include "XrdSys/XrdSysTimer.hh"
#include "XrdSys/XrdSysPlatform.hh"
#include "XrdSys/XrdSysPthread.hh"
#include "XrdSys/XrdSysUtils.hh"
using namespace XrdFrc;
using namespace XrdFrm;
/******************************************************************************/
/* L o c a l C l a s s e s */
/******************************************************************************/
class XrdFrmConfigSE
{
public:
XrdSysSemaphore mySem;
int myFD;
int seFD;
int BLen;
char Buff[32000];
XrdFrmConfigSE() : mySem(0), myFD(-1), seFD(-1), BLen(0) {}
~XrdFrmConfigSE() {}
};
/******************************************************************************/
/* T h r e a d I n t e r f a c e s */
/******************************************************************************/
void *XrdFrmConfigMum(void *parg)
{
XrdFrmConfigSE *theSE = (XrdFrmConfigSE *)parg;
char *bp = theSE->Buff;
int n, bleft = sizeof(theSE->Buff)-2;
// Let the calling thread continue at this point
//
theSE->mySem.Post();
// Read everything we can
//
do {if ((n = read(theSE->myFD, bp, bleft)) <= 0)
{if (!n || (n < 0 && errno != EINTR)) break;}
bp += n;
} while ((bleft -= n));
// Refalgomize everything
//
dup2(theSE->seFD, STDERR_FILENO);
close(theSE->seFD);
// Check if we should add a newline character
//
if (theSE->Buff[bp-(theSE->Buff)-1L] != '\n') *bp++ = '\n';
theSE->BLen = bp-(theSE->Buff);
// All done
//
theSE->mySem.Post();
return (void *)0;
}
/******************************************************************************/
/* C o n s t r u c t o r */
/******************************************************************************/
XrdFrmConfig::XrdFrmConfig(SubSys ss, const char *vopts, const char *uinfo)
: dfltPolicy("*", -2, -3, 72000, 0)
{
static XrdVERSIONINFODEF(myVer, XrdFrm, XrdVNUMBER, XrdVERSION);
char *sP, buff[128];
// Preset all variables with common defaults
//
myVersion= &myVer;
mySite = 0;
vOpts = vopts;
uInfo = uinfo;
ssID = ss;
AdminPath= 0;
QPath = 0;
AdminMode= 0740;
xfrMax = 2;
FailHold = 3*60*60;
IdleHold = 10*60;
WaitMigr = 60*60;
WaitPurge= 600;
WaitQChk = 300;
MSSCmd = 0;
memset(&xfrCmd, 0, sizeof(xfrCmd));
xfrCmd[0].Desc = "copycmd in"; xfrCmd[1].Desc = "copycmd out";
xfrCmd[2].Desc = "copycmd in url"; xfrCmd[3].Desc = "copycmd out url";
xfrIN = xfrOUT = 0;
isAgent = (getenv("XRDADMINPATH") ? 1 : 0);
OfsCfg = 0;
cmsPath = 0;
haveCMS = 0;
isOTO = 0;
Test = 0;
Verbose = 0;
pathList = 0;
spacList = 0;
lockFN = "DIR_LOCK"; // May be ".DIR_LOCK" if hidden
cmdHold = -1;
cmdFree = 0;
pVecNum = 0;
pProg = 0;
Fix = 0;
dirHold = 40*60*60;
runOld = 0;
runNew = 1;
nonXA = 0;
doStatPF = 0;
myUid = geteuid();
myGid = getegid();
LocalRoot= RemoteRoot = 0;
lcl_N2N = rmt_N2N = the_N2N = 0;
N2N_Lib = N2N_Parms = 0;
CksMan = 0;
xfrFdir = 0;
xfrFdln = 0;
// Establish our instance name
//
myInst = XrdOucUtils::InstName(-1);
// Establish default config file
//
if (!(sP = getenv("XRDCONFIGFN")) || !*sP)
ConfigFN = 0;
else {ConfigFN = strdup(sP); isAgent = 1;}
// Establish directive prefix
//
if (ss == ssAdmin) {myFrmid = "admin"; myFrmID = "ADMIN";}
else if (ss == ssPurg) {myFrmid = "purge"; myFrmID = "PURG";}
else if (ss == ssXfr) {myFrmid = "xfr"; myFrmID = "XFR"; }
else {myFrmid = "frm"; myFrmID = "FRM";}
// Set correct error prefix
//
strcpy(buff, myFrmid);
strcat(buff, "_");
Say.SetPrefix(strdup(buff));
// Set correct option prefix
//
strcpy(buff, "frm.");
strcat(buff, myFrmid);
strcat(buff, ".");
pfxDTS = strdup(buff); plnDTS = strlen(buff);
}
/******************************************************************************/
/* Public: C o n f i g u r e */
/******************************************************************************/
int XrdFrmConfig::Configure(int argc, char **argv, int (*ppf)())
{
extern XrdOss *XrdOssGetSS(XrdSysLogger *, const char *, const char *,
const char *, XrdOucEnv *, XrdVersionInfo &);
extern int *XrdOssRunMode;
static XrdNetAddr myAddr(0);
XrdFrmConfigSE theSE;
int retc, isMum = 0, myXfrMax = -1, NoGo = 0, optBG = 0;
const char *temp;
char c, buff[1024], *logfn = 0;
extern char *optarg;
extern int opterr, optopt;
int pipeFD[2] = {-1, -1}, bindArg = -1, pureLFN = 0;
const char *pidFN = 0;
// Obtain the program name (used for logging)
//
retc = strlen(argv[0]);
while(retc--) if (argv[0][retc] == '/') break;
myProg = &argv[0][retc+1];
vectArg = argv; numcArg = argc;
// Process the options
//
opterr = 0; nextArg = 1;
while(nextArg < argc && '-' == *argv[nextArg]
&& (c=getopt(argc,argv,vOpts)) && (c != (char)-1))
{ switch(c)
{
case 'b': optBG = 1;
break;
case 'c': if (ConfigFN) free(ConfigFN);
ConfigFN = strdup(optarg);
break;
case 'd': Trace.What |= TRACE_ALL;
XrdOucEnv::Export("XRDDEBUG","1");
break;
case 'f': Fix = 1;
break;
case 'h': Usage(0);
break;
case 'k': if (!(bindArg = Say.logger()->ParseKeep(optarg)))
{Say.Emsg("Config","Invalid -k argument -",optarg);
Usage(1);
}
break;
case 'l': if ((pureLFN = *optarg == '=')) optarg++;
if (!*optarg)
{Say.Emsg("Config", "Logfile name not specified.");
Usage(1);
}
if (logfn) free(logfn);
logfn = strdup(optarg);
break;
case 'm': if (XrdOuca2x::a2i(Say,"max number",optarg,&myXfrMax))
Usage(1);
break;
case 'n': myInst = (!strcmp(optarg,"anon")||!strcmp(optarg,"default")
? 0 : optarg);
break;
case 'O': isOTO = 1;
if (!ConfigOTO(optarg)) Usage(1);
break;
case 'T': Test = 1;
break;
case 'v': Verbose = 1;
break;
case 'w': if (XrdOuca2x::a2tm(Say,"wait time",optarg,&WaitPurge))
Usage(1);
break;
case 's': pidFN = optarg;
break;
case 'S': mySite= optarg;
break;
case 'z': Say.logger()->setHiRes();
break;
default: sprintf(buff,"'%c'", optopt);
if (c == ':') Say.Emsg("Config", buff, "value not specified.");
else Say.Emsg("Config", buff, "option is invalid");
Usage(1);
}
nextArg = optind;
}
// Set the site name if we have it at this point
//
if (mySite) mySite = XrdOucSiteName::Set(mySite);
// If we are an agent without a logfile and one is actually defined for the
// underlying system, use the directory of the underlying system.
//
if (ssID != ssAdmin)
{if (!logfn)
{if (isAgent && (logfn = getenv("XRDLOGDIR")))
{snprintf(buff, sizeof(buff), "%s%s%clog", logfn, myFrmid,
(isAgent ? 'a' : 'd'));
logfn = strdup(buff);
}
} else if (!pureLFN
&& !(logfn=XrdOucUtils::subLogfn(Say,myInst,logfn))) _exit(16);
// If undercover desired and we are not an agent, do so
//
if (optBG && !isAgent)
{
#ifdef WIN32
XrdOucUtils::Undercover( Say, !logfn );
#else
if (pipe( pipeFD ) == -1)
{Say.Emsg("Config", errno, "create a pipe"); exit(17);}
XrdOucUtils::Undercover( Say, !logfn, pipeFD );
#endif
}
// Bind the log file if we have one
//
if (logfn)
{Say.logger()->AddMsg(XrdBANNER);
if (Say.logger()->Bind(logfn, bindArg)) _exit(19);
}
}
// Get the full host name. In theory, we should always get some kind of name.
//
if (!(myName = myAddr.Name()))
{Say.Emsg("Config","Unable to determine host name; execution terminated.");
_exit(16);
}
// Set the Environmental variables to hold some config information
// XRDINSTANCE=<pgm> <instance name>@<host name>
//
snprintf(buff,sizeof(buff), "XRDINSTANCE=%s %s@%s",myProg,
XrdOucUtils::InstName(myInst), myName);
putenv(strdup(buff)); // XRDINSTANCE
myInstance = strdup(index(buff,'=')+1);
XrdOucEnv::Export("XRDHOST", myName);
XrdOucEnv::Export("XRDPROG", myProg);
XrdOucEnv::Export("XRDNAME", XrdOucUtils::InstName(myInst));
// We need to divert the output if we are in admin mode with no logfile
//
if (!logfn && (ssID == ssAdmin || isOTO) && !Trace.What)
isMum = ConfigMum(theSE);
// Add final message to the logger
//
if (logfn)
{char msgBuff[2048];
strcpy(msgBuff, myInstance); strcat(msgBuff, " running.");
Say.logger()->AddMsg(msgBuff);
}
// Put out the herald
//
sprintf(buff, "Scalla %s is starting. . .", myProg);
Say.Say(0, buff);
Say.Say(XrdBANNER);
// Process the configuration file.
//
Say.Say("++++++ ", myInstance, " initialization started.");
if (!ConfigFN || !*ConfigFN) ConfigFN = strdup("/opt/xrootd/etc/xrootd.cf");
Say.Say("Config using configuration file ", ConfigFN);
NoGo = ConfigProc();
// Create the correct admin path
//
if (!NoGo) NoGo = ConfigPaths();
// Obtain and configure the oss (lightweight option only)
//
if (!isAgent)
{XrdOucEnv::Export("XRDREDIRECT", "Q");
XrdOucEnv::Export("XRDOSSTYPE", myFrmID);
if (ssID == ssPurg) XrdOucEnv::Export("XRDOSSCSCAN", "off");
if (!NoGo)
{int loadPI = XrdOfsConfigPI::theOssLib | XrdOfsConfigPI::theAtrLib;
if (ssID == ssAdmin) loadPI |= XrdOfsConfigPI::theCksLib;
if (!OfsCfg->Load(loadPI)) NoGo = 1;
else {struct stat Stat;
OfsCfg->Plugin(ossFS);
OfsCfg->Plugin(CksMan);
doStatPF = ossFS->StatPF("/", &Stat) != -ENOTSUP;
runNew = !(runOld = XrdOssRunMode ? *XrdOssRunMode : 0);
}
}
}
// Now we can create a home directory for core files and do a cwd to it
//
if (myInst) XrdOucUtils::makeHome(Say, myInst);
// Configure each specific component
//
if (!NoGo) switch(ssID)
{case ssAdmin: NoGo = (ConfigN2N() || ConfigMss());
break;
case ssPurg: if (!(NoGo = (ConfigMon(0) || ConfigMP("purgeable"))))
ConfigPF("frm_purged");
break;
case ssXfr: if (!isAgent && !(NoGo = (ConfigMon(1) || ConfigXfr())))
ConfigPF("frm_xfrd");
break;
default: break;
}
// If we have a post-processing routine, invoke it
//
if (!NoGo && ppf) NoGo = ppf();
// if we call this it means that the daemon has forked and we are
// in the child process
#ifndef WIN32
if (optBG && !isAgent)
{
if (pidFN && !XrdOucUtils::PidFile( Say, pidFN ) )
NoGo = 1;
int status = NoGo ? 1 : 0;
if(write( pipeFD[1], &status, sizeof( status ) )) {};
close( pipeFD[1]);
}
#endif
// Print ending message
//
temp = (NoGo ? " initialization failed." : " initialization completed.");
Say.Say("------ ", myInstance, temp);
// Finish up mum processing
//
if (isMum)
{close(STDERR_FILENO);
theSE.mySem.Wait();
if (NoGo && write(STDERR_FILENO, theSE.Buff, theSE.BLen)) {}
}
// All done
//
if (OfsCfg) delete OfsCfg;
return !NoGo;
}
/******************************************************************************/
/* Public: L o c a l P a t h */
/******************************************************************************/
int XrdFrmConfig::LocalPath(const char *oldp, char *newp, int newpsz)
{
int rc = 0;
if (lcl_N2N) rc = lcl_N2N->lfn2pfn(oldp, newp, newpsz);
else if (((int)strlen(oldp)) >= newpsz) rc = ENAMETOOLONG;
else strcpy(newp, oldp);
if (rc) {Say.Emsg("Config", rc, "generate local path from", oldp);
return 0;
}
return 1;
}
/******************************************************************************/
/* Public: L o g i c a l P a t h */
/******************************************************************************/
int XrdFrmConfig::LogicalPath(const char *oldp, char *newp, int newpsz)
{
int rc = 0;
if (lcl_N2N) rc = lcl_N2N->pfn2lfn(oldp, newp, newpsz);
else if (((int)strlen(oldp)) >= newpsz) rc = ENAMETOOLONG;
else strcpy(newp, oldp);
if (rc) {Say.Emsg("Config", rc, "generate logical path from", oldp);
return 0;
}
return 1;
}
/******************************************************************************/
/* Public: N e e d s C T A */
/******************************************************************************/
int XrdFrmConfig::NeedsCTA(const char *Lfn)
{
extern XrdOucPListAnchor *XrdOssRPList;
return (XrdOssRPList->Find(Lfn) & XRDEXP_MAKELF) != 0;
}
/******************************************************************************/
/* Public: P a t h O p t s */
/******************************************************************************/
unsigned long long XrdFrmConfig::PathOpts(const char *Lfn)
{
extern XrdOucPListAnchor *XrdOssRPList;
return XrdOssRPList->Find(Lfn);
}
/******************************************************************************/
/* Public: R e m o t e P a t h */
/******************************************************************************/
int XrdFrmConfig::RemotePath(const char *oldp, char *newp, int newpsz)
{
int rc = 0;
if (rmt_N2N) rc = rmt_N2N->lfn2rfn(oldp, newp, newpsz);
else if (((int)strlen(oldp)) >= newpsz) rc = ENAMETOOLONG;
else strcpy(newp, oldp);
if (rc) {Say.Emsg("Config", rc, "generate rmote path from", oldp);
return 0;
}
return 1;
}
/******************************************************************************/
/* S p a c e */
/******************************************************************************/
XrdOucTList *XrdFrmConfig::Space(const char *Name, const char *Path)
{
static XrdOucTList nullEnt;
struct VPInfo *vP = VPList;
XrdOucTList *tP;
char buff[1032];
int n;
// First find the space entry
//
while(vP && strcmp(vP->Name, Name)) vP = vP->Next;
if (!vP) return 0;
// Check if we should find a particular path
//
if (!Path) return vP->Dir;
// Make sure it nds with a slash (it usually does not)
//
n = strlen(Path)-1;
if (Path[n] != '/')
{if (n >= (int)sizeof(buff)-2) return &nullEnt;
strcpy(buff, Path); buff[n+1] = '/'; buff[n+2] = '\0';
Path = buff;
}
// Find the path
//
tP = vP->Dir;
while(tP && strcmp(Path, tP->text)) tP = tP->next;
return (tP ? tP : &nullEnt);
}
/******************************************************************************/
/* S t a t */
/******************************************************************************/
int XrdFrmConfig::Stat(const char *xLfn, const char *xPfn, struct stat *buff)
{
return (doStatPF ? ossFS->StatPF(xPfn, buff)
: ossFS->Stat (xLfn, buff, XRDOSS_resonly));
}
/******************************************************************************/
/* P r i v a t e F u n c t i o n s */
/******************************************************************************/
/******************************************************************************/
/* Private: C o n f i g C m d */
/******************************************************************************/
XrdOucMsubs *XrdFrmConfig::ConfigCmd(const char *cname, char *cdata)
{
XrdOucMsubs *msubs;
char *cP;
if (!cdata) {Say.Emsg("Config", cname, "not specified."); return 0;}
if ((cP = index(cdata, ' '))) *cP = '\0';
if (access(cdata, X_OK))
{Say.Emsg("Config", errno, "set up", cdata);
return 0;
}
if (cP) *cP = ' ';
msubs = new XrdOucMsubs(&Say);
if (msubs->Parse(cname, cdata)) return msubs;
return 0; // We will exit no need to delete msubs
}
/******************************************************************************/
/* Private: C o n f i g M o n */
/******************************************************************************/
int XrdFrmConfig::ConfigMon(int isXfr)
{
// We configure the name2name here
//
if (ConfigN2N()) return 1;
// If we need to configure monitoring, do so here
//
if (( isXfr && (XrdFrmMonitor::monSTAGE||XrdFrmMonitor::monMIGR))
|| (!isXfr && XrdFrmMonitor::monPURGE))
{if (!XrdFrmMonitor::Init(myName, myProg, myInst)) return 1;
else {if (!XrdFrmMonitor::monSTAGE)
{xfrCmd[0].Opts &= ~cmdXPD; xfrCmd[2].Opts &= ~cmdXPD;}
if (!XrdFrmMonitor::monMIGR)
{xfrCmd[1].Opts &= ~cmdXPD; xfrCmd[3].Opts &= ~cmdXPD;}
}
}
// All done
//
return 0;
}
/******************************************************************************/
/* Private: C o n f i g M P */
/******************************************************************************/
int XrdFrmConfig::ConfigMP(const char *pType)
{
EPNAME("ConfigMP");
extern XrdOucPListAnchor *XrdOssRPList;
XrdOucTList *nP, *tP, *mypList = 0, *expList = 0;
char pDir[MAXPATHLEN+1];
long long pOpts, xOpt = (*pType == 'm' ? XRDEXP_MIG : XRDEXP_PURGE);
int i, NoGo = 0;
// Verify that we have an RPList
//
if (!XrdOssRPList)
{Say.Emsg("Config", "Cannot determine", pType, "paths."); return 1;}
// Parse the arguments which consist of space names and paths
//
for (i = nextArg; i < numcArg; i++)
{char *psVal = vectArg[i];
int psLen = strlen(psVal);
if (*psVal == '/')
{pOpts = XrdOssRPList->Find(psVal);
if (pOpts & xOpt) mypList = InsertPL(mypList, psVal, psLen,
(pOpts & XRDEXP_MAKELF ? 1:0));
else {Say.Say("Config", psVal, "not marked", pType); NoGo = 1;}
} else {
VPInfo *vP = VPList;
while(vP && strcmp(psVal, vP->Name)) vP = vP->Next;
if (vP) spacList = new XrdOucTList(psVal, psLen, spacList);
else {Say.Emsg("Config", "Space", psVal, "not defined.");
NoGo = 1;
}
}
}
// Check if we should continue
//
if (NoGo) return 1;
// Get correct path list
//
if (!mypList)
{XrdOucPList *fP = XrdOssRPList->First();
short sval[4]; // Last two elements are unused
while(fP)
{sval[0] = (fP->Flag() & XRDEXP_MAKELF ? 1 : 0);
sval[1] = fP->Plen();
if (fP->Flag() & xOpt)
mypList = new XrdOucTList(fP->Path(), sval, mypList);
else
expList = new XrdOucTList(fP->Path(), sval, expList);
fP = fP->Next();
}
// if (!mypList)
// {Say.Emsg("Config", "No", pType, "paths found."); return 1;}
}
// Now we need to construct a search list which may include excludes which
// hapen when we get nested subtrees with different options
//
while((tP = mypList))
{if (!LocalPath(tP->text, pDir, sizeof(pDir))) NoGo = 1;
else {pathList = new VPInfo(pDir, int(tP->sval[0]), pathList);
DEBUG("Will scan " <<(tP->sval[0]?"r/w: ":"r/o: ") <<pDir);
nP = expList;
while(nP)
{if (!strncmp(tP->text, nP->text, tP->sval[1]))
InsertXD(nP->text);
nP = nP->next;
}
mypList = tP->next; delete tP;
}
}
// Delete the explist
//
while((tP = expList)) {expList = tP->next; delete tP;}
// For purging, make sure we have at least one path to purge
//
if (xOpt == XRDEXP_PURGE && !pathList)
{Say.Emsg("Config","No purgeable paths specified!");
NoGo = 1;
}
// The oss would have already set NORCREATE and NOCHECK for all stageable paths.
// But now, we must also off the R/O flag on every purgeable and stageable path
// to prevent oss complaints. This needs to be defered to here because we need
// to know which paths are actually r/o and r/w.
//
if (!NoGo)
{XrdOucPList *fp = XrdOssRPList->First();
while(fp)
{if (fp->Flag() & (XRDEXP_STAGE | XRDEXP_PURGE))
fp->Set(fp->Flag() & ~XRDEXP_NOTRW);
fp = fp->Next();
}
}
// All done now
//
return NoGo;
}
/******************************************************************************/
/* Private: C o n f i g M s s */
/******************************************************************************/
int XrdFrmConfig::ConfigMss()
{
if (MSSCmd)
{MSSProg = new XrdOucProg(&Say);
if (MSSProg->Setup(MSSCmd)) return 1;
}
return 0;
}
/******************************************************************************/
/* Private: C o n f i g M u m */
/******************************************************************************/
int XrdFrmConfig::ConfigMum(XrdFrmConfigSE &theSE)
{
class Recover
{public:
int fdvec[2];
int stdErr;
Recover() : stdErr(-1) {fdvec[0] = -1; fdvec[1] = -1;}
~Recover() {if (fdvec[0] >= 0) close(fdvec[0]);
if (fdvec[1] >= 0) close(fdvec[1]);
if (stdErr >= 0) {dup2(stdErr, STDERR_FILENO);
close(stdErr);
}
}
};
Recover FD;
pthread_t tid;
int rc;
// Create a pipe
//
if (pipe(FD.fdvec) < 0) return 0;
fcntl(FD.fdvec[0], F_SETFD, FD_CLOEXEC);
// Save the current standard error FD
//
if ((FD.stdErr = dup(STDERR_FILENO)) < 0) return 0;
// Now hook-up the pipe to standard error
//
if (dup2(FD.fdvec[1], STDERR_FILENO) < 0) return 0;
close(FD.fdvec[1]); FD.fdvec[1] = -1;
// Prepare arguments to the thread that will suck up the output
//
theSE.myFD = FD.fdvec[0];
theSE.seFD = FD.stdErr;
// Start a thread to read all of the output
//
if ((rc = XrdSysThread::Run(&tid, XrdFrmConfigMum, (void *)&theSE,
XRDSYSTHREAD_BIND, "Mumify"))) return 0;
// Now fixup to return correctly
//
theSE.mySem.Wait();
FD.fdvec[0] = -1;
FD.stdErr = -1;
return 1;
}
/******************************************************************************/
/* Private: C o n f i g N 2 N */
/******************************************************************************/
int XrdFrmConfig::ConfigN2N()
{
XrdOucN2NLoader n2nLoader(&Say,ConfigFN,N2N_Parms,LocalRoot,RemoteRoot);
// Check if we really need to configure this
//
if (!N2N_Lib && !LocalRoot && !RemoteRoot) return 0;
// Get the plugin
//
if (!(the_N2N = n2nLoader.Load(N2N_Lib, *myVersion))) return 1;
// Optimize the local case
//
if (N2N_Lib) rmt_N2N = lcl_N2N = the_N2N;
else {if (LocalRoot) lcl_N2N = the_N2N;
if (RemoteRoot) rmt_N2N = the_N2N;
}
// All done
//
return 0;
}
/******************************************************************************/
/* C o n f i g O T O */
/******************************************************************************/
int XrdFrmConfig::ConfigOTO(char *Parms)
{
char *Comma;
// Pick up free argument
//
if ((Comma = index(Parms, ','))) *Comma = '\0';
if (XrdOuca2x::a2sp(Say, "free value", Parms, &cmdFree, 1)) return 0;
// Pick up hold argument
//
if (!Comma || !(*(Comma+1))) return 1;
if (*(Comma+1) == ',') Comma++;
else {Parms = Comma+1;
if ((Comma = index(Parms, ','))) *Comma = '\0';
if (XrdOuca2x::a2i(Say,"hold value",Parms,&cmdHold,0)) return 0;
}
// All done
//
return 1;
}
/******************************************************************************/
/* C o n f i g P a t h s */
/******************************************************************************/
int XrdFrmConfig::ConfigPaths()
{
char *xPath, buff[MAXPATHLEN];
const char *insName;
// Get the directory for the meta information. If we don't get it from the
// config, then use XRDADMINPATH which already contains the instance name.
//
// Set the directory where the meta information is to go
// XRDADMINPATH already contains the instance name
if ((xPath = AdminPath)) insName = myInst;
else if ((xPath = getenv("XRDADMINPATH"))) insName = 0;
else {xPath = (char *)"/tmp/"; insName = myInst;}
// Do post initialization for the cnsd
//
if (XrdFrmCns::Init(myFrmid, xPath, insName)) return 1;
// Establish the cmsd notification object. We need to do this using an
// unqualified admin path that we determined above.
//
if (haveCMS)
cmsPath = new XrdNetCmsNotify(&Say,xPath,insName,XrdNetCmsNotify::isServ);
// Create the admin directory if it does not exists and set QPath
//
if (!(xPath = XrdFrcUtils::makePath(insName, xPath, AdminMode))) return 1;
if (AdminPath) free(AdminPath);
AdminPath = xPath;
if (!QPath) QPath = AdminPath;
// Create the purge stop file name
//
strcpy(buff, Config.AdminPath); strcat(buff, "STOPPURGE");
StopPurge = strdup(buff);
// All done
//
return 0;
}
/******************************************************************************/
/* C o n f i g P F */
/******************************************************************************/
void XrdFrmConfig::ConfigPF(const char *pFN)
{
static const int Mode = S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH;
const char *ppP = (PidPath ? PidPath : "/tmp");
char buff[1032], data[24];
int pfFD, n;
// Construct pidfile name
//
if (myInst) snprintf(buff, sizeof(buff), "%s/%s/%s.pid", ppP, myInst, pFN);
else sprintf(buff, "%s/%s.pid", ppP, pFN);
// Open the pidfile creating it if necessary
//
if ((pfFD = open(buff, O_WRONLY|O_CREAT|O_TRUNC, Mode)) < 0)
{Say.Emsg("Config",errno,"open",buff); return;}
// Write out our pid
//
n = sprintf(data, "%lld", static_cast<long long>(getpid()));
if (write(pfFD, data, n) < 0) Say.Emsg("Config",errno,"writing",buff);
close(pfFD);
}
/******************************************************************************/
/* Private: C o n f i g P r o c */
/******************************************************************************/
int XrdFrmConfig::ConfigProc()
{
char *var;
int cfgFD, retc, mbok, NoGo = 0;
XrdOucEnv myEnv;
XrdOucStream cfgFile(&Say, myInstance, &myEnv, "=====> ");
// Allocate a plugin library configurator
//
OfsCfg = XrdOfsConfigPI::New(ConfigFN, &cfgFile, &Say, myVersion);
if (!OfsCfg) return 1;
// Try to open the configuration file.
//
if ( (cfgFD = open(ConfigFN, O_RDONLY, 0)) < 0)
{Say.Emsg("Config", errno, "open config file", ConfigFN);
return 1;
}
cfgFile.Attach(cfgFD); cFile = &cfgFile;
// Now start reading records until eof.
//
while((var = cFile->GetMyFirstWord()))
{mbok = 0;
if (!strncmp(var, pfxDTS, plnDTS)) {var += plnDTS; mbok = 1;}
if(ConfigXeq(var, mbok)) {cfgFile.Echo(); NoGo = 1;}
}
// Now check if any errors occured during file i/o
//
if ((retc = cfgFile.LastError()))
NoGo = Say.Emsg("Config", retc, "read config file", ConfigFN);
cfgFile.Close(); cFile = 0;
// Return final return code
//
return NoGo;
}
/******************************************************************************/
/* Prvate: C o n f i g X e q */
/******************************************************************************/
#define PARSEPI(x) return !OfsCfg->Parse(XrdOfsConfigPI:: x);