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XrdPssConfig.cc
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XrdPssConfig.cc
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/******************************************************************************/
/* */
/* X r d P s s C o n f i g . c c */
/* */
/* (c) 2007 by the Board of Trustees of the Leland Stanford, Jr., University */
/* All Rights Reserved */
/* Produced by Andrew Hanushevsky for Stanford University under contract */
/* DE-AC02-76-SFO0515 with the Department 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 <stdio.h>
#include <string.h>
#include <strings.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "XrdVersion.hh"
#include "XrdFfs/XrdFfsDent.hh"
#include "XrdFfs/XrdFfsMisc.hh"
#include "XrdFfs/XrdFfsQueue.hh"
#include "XrdNet/XrdNetAddr.hh"
#include "XrdNet/XrdNetUtils.hh"
#include "XrdNet/XrdNetSecurity.hh"
#include "XrdPss/XrdPss.hh"
#include "XrdSys/XrdSysError.hh"
#include "XrdSys/XrdSysHeaders.hh"
#include "XrdSys/XrdSysPlatform.hh"
#include "XrdSys/XrdSysPthread.hh"
#include "XrdOuc/XrdOuca2x.hh"
#include "XrdOuc/XrdOucCache2.hh"
#include "XrdOuc/XrdOucEnv.hh"
#include "XrdOuc/XrdOucExport.hh"
#include "XrdOuc/XrdOucN2NLoader.hh"
#include "XrdOuc/XrdOucPinLoader.hh"
#include "XrdOuc/XrdOucStream.hh"
#include "XrdOuc/XrdOucTList.hh"
#include "XrdOuc/XrdOucUtils.hh"
#include "XrdOuc/XrdOucCache2.hh"
#include "XrdPosix/XrdPosixXrootd.hh"
/******************************************************************************/
/* d e f i n e s */
/******************************************************************************/
#define Duplicate(x,y) if (y) free(y); y = strdup(x)
#define TS_String(x,m) if (!strcmp(x,var)) {Duplicate(val,m); return 0;}
#define TS_Xeq(x,m) if (!strcmp(x,var)) return m(&eDest, Config);
/*******x**********************************************************************/
/* G l o b a l s */
/******************************************************************************/
const char *XrdPssSys::ConfigFN; // -> Pointer to the config file name
const char *XrdPssSys::myHost;
const char *XrdPssSys::myName;
uid_t XrdPssSys::myUid = geteuid();
gid_t XrdPssSys::myGid = getegid();
XrdOucPListAnchor XrdPssSys::XPList;
XrdNetSecurity *XrdPssSys::Police[XrdPssSys::PolNum] = {0, 0};
XrdOucTList *XrdPssSys::ManList = 0;
const char *XrdPssSys::urlPlain = 0;
int XrdPssSys::urlPlen = 0;
int XrdPssSys::hdrLen = 0;
const char *XrdPssSys::hdrData = 0;
const char *XrdPssSys::urlRdr = 0;
int XrdPssSys::Streams =512;
int XrdPssSys::Workers = 16;
char XrdPssSys::allChmod = 0;
char XrdPssSys::allMkdir = 0;
char XrdPssSys::allMv = 0;
char XrdPssSys::allRm = 0;
char XrdPssSys::allRmdir = 0;
char XrdPssSys::allTrunc = 0;
char XrdPssSys::cfgDone = 0;
bool XrdPssSys::outProxy = false;
bool XrdPssSys::pfxProxy = false;
namespace XrdProxy
{
static XrdPosixXrootd *Xroot;
extern XrdSysError eDest;
extern XrdOucSid *sidP;
static const int maxHLen = 1024;
}
using namespace XrdProxy;
/******************************************************************************/
/* E x t e r n a l T h r e a d I n t e r f a c e s */
/******************************************************************************/
void *XrdPssConfigFfs(void *carg)
{
XrdPssSys *myPSS = (XrdPssSys *)carg;
// Initialize the Ffs (we don't use xrd_init() as it messes up the settings
// We also do not initialize secsss as we don't know how to effectively use it.
//
// XrdFfsMisc_xrd_secsss_init();
XrdFfsMisc_refresh_url_cache(myPSS->urlRdr);
XrdFfsDent_cache_init();
XrdFfsQueue_create_workers(myPSS->Workers);
// Tell everyone waiting for this initialization to complete. We use the trick
// that in all systems a caharcter is atomically accessed and a single change
// in value will be detected in a consistent way.
//
myPSS->cfgDone = 1;
return (void *)0;
}
/******************************************************************************/
/* C o n f i g u r e */
/******************************************************************************/
int XrdPssSys::Configure(const char *cfn)
{
/*
Function: Establish configuration at start up time.
Input: None.
Output: 0 upon success or !0 otherwise.
*/
struct {const char *Typ; char *Loc;} Fwd[] = {{" ch", &allChmod},
{" mk", &allMkdir},
{" mv", &allMv },
{" rd", &allRmdir},
{" rm", &allRm },
{" tr", &allTrunc},
{0, 0 }
};
const char *xP;
XrdOucPList *fP;
pthread_t tid;
char *eP, theRdr[maxHLen+1024];
int i, hpLen, NoGo = 0;
bool haveFwd = false;
// Get environmental values
//
myHost = getenv("XRDHOST");
myName = XrdOucUtils::InstName(1);
ConfigFN = cfn;
// Set debug level if so wanted and the default number of worker threads
//
if (getenv("XRDDEBUG")) XrdPosixXrootd::setDebug(1, true);
XrdPosixXrootd::setEnv("WorkerThreads", 64);
// Set client IP mode based on what the server is set to
//
if (XrdNetAddr::IPV4Set()) XrdPosixXrootd::setIPV4(true);
// Set default number of event loops
//
XrdPosixXrootd::setEnv("ParallelEvtLoop", 3);
// Process the configuration file
//
if ((NoGo = ConfigProc(cfn))) return NoGo;
// Make sure we have some kind of origin
//
if (!ManList && !outProxy)
{eDest.Emsg("Config", "Origin for proxy service not specified.");
return 1;
}
// Tell xrootd to disable async I/O as it just will slow everything down.
//
// XrdOucEnv::Export("XRDXROOTD_NOAIO", "1");
// Thell xrootd to disable POSC mode as this is meaningless here
//
XrdOucEnv::Export("XRDXROOTD_NOPOSC", "1");
// Initialize an alternate cache if one is present
//
if (cPath && !getCache()) return 1;
// Allocate an Xroot proxy object (only one needed here). Tell it to not
// shadow open files with real file descriptors (we will be honest). This can
// be done before we initialize the ffs.
//
Xroot = new XrdPosixXrootd(-32768, 16384);
// Allocate an streaim ID object if need be
//
if (Streams) sidP = new XrdOucSid((Streams > 8192 ? 8192 : Streams));
// If this is an outgoing proxy then we are done
//
if (outProxy)
{if (!ManList) strcpy(theRdr, "=");
else sprintf(theRdr, "= %s:%d", ManList->text, ManList->val);
XrdOucEnv::Export("XRDXROOTD_PROXY", theRdr);
if (ManList)
{hdrLen = sprintf(theRdr, "root://%%s%s:%d/%%s%%s%%s",
ManList->text, ManList->val);
hdrData = strdup(theRdr);
}
return 0;
}
// Build the URL header
//
if (!(hpLen = buildHdr())) return 1;
// Create a plain url for future use
//
urlPlen = sprintf(theRdr, hdrData, "", "", "", "", "", "", "", "");
urlPlain= strdup(theRdr);
// Export the origin
//
theRdr[urlPlen-1] = 0;
XrdOucEnv::Export("XRDXROOTD_PROXY", theRdr+hpLen);
theRdr[urlPlen-1] = '/';
// Copy out the forwarding that might be happening via the ofs
//
i = 0;
if ((eP = getenv("XRDOFS_FWD")))
while(Fwd[i].Typ)
{if (!strstr(eP, Fwd[i].Typ)) {*(Fwd[i].Loc) = 1; haveFwd = true;}
i++;
}
// Configure the N2N library:
//
if ((NoGo = ConfigN2N())) return NoGo;
// We would really like that the Ffs interface use the generic method of
// keeping track of data servers. It does not and it even can't handle more
// than one export (really). But it does mean we need to give it a valid one.
//
if (!(eP = getenv("XRDEXPORTS")) || *eP != '/') xP = "/tmp";
else if ((xP = rindex(eP, ' '))) xP++;
else xP = eP;
// Setup the redirection url
//
strcpy(&theRdr[urlPlen], xP); urlRdr = strdup(theRdr);
// Check if we have any r/w exports as this will determine whether or not we
// need to initialize the ffs (we'd rather ot if at all possible).
//
fP = XPList.First();
while(fP && !(fP->Flag() & XRDEXP_NOTRW)) fP = fP->Next();
// We avoid initializing the ffs if we have no r/w paths or there is no need to
// forward r/w metadata operations (e.g. rm, rmdir, etc).
//
if (!fP || !haveFwd) return 0;
// Now spwan a thread to complete ffs initialization which may hang for a while
//
if (XrdSysThread::Run(&tid, XrdPssConfigFfs, (void *)this, 0, "Ffs Config"))
{eDest.Emsg("Config", errno, "start ffs configurator"); return 1;}
// All done
//
return 0;
}
/******************************************************************************/
/* P r i v a t e F u n c t i o n s */
/******************************************************************************/
/******************************************************************************/
/* b u i l d H d r */
/******************************************************************************/
int XrdPssSys::buildHdr()
{
XrdOucTList *tp = ManList;
char buff[maxHLen], *pb;
int n, hpLen, bleft = sizeof(buff);
// Fill in start of header
//
strcpy(buff, "root://"); hpLen = strlen(buff);
pb = buff+hpLen; bleft -= hpLen;
// The redirector list must fit into 1K bytes (along with header)
//
while(tp)
{n = snprintf(pb, bleft, "%%s%s:%d%c", tp->text, tp->val,
(tp->next ? ',':'/'));
if (n >= bleft) break;
pb += n; bleft -= n;
tp = tp->next;
}
if (tp)
{eDest.Emsg("Config", "Too many proxy service managers specified.");
return 0;
}
hdrData = strdup(buff);
hdrLen = strlen(buff);
return hpLen;
}
/******************************************************************************/
/* C o n f i g P r o c */
/******************************************************************************/
int XrdPssSys::ConfigProc(const char *Cfn)
{
char *var;
int cfgFD, retc, NoGo = 0;
XrdOucEnv myEnv;
XrdOucStream Config(&eDest, getenv("XRDINSTANCE"), &myEnv, "=====> ");
// Make sure we have a config file
//
if (!Cfn || !*Cfn)
{eDest.Emsg("Config", "pss configuration file not specified.");
return 1;
}
// Try to open the configuration file.
//
if ( (cfgFD = open(Cfn, O_RDONLY, 0)) < 0)
{eDest.Emsg("Config", errno, "open config file", Cfn);
return 1;
}
Config.Attach(cfgFD);
// Now start reading records until eof.
//
while((var = Config.GetMyFirstWord()))
{if (!strncmp(var, "pss.", 4)
|| !strcmp(var, "oss.defaults")
|| !strcmp(var, "all.export"))
if (ConfigXeq(var+4, Config)) {Config.Echo(); NoGo = 1;}
}
// Now check if any errors occured during file i/o
//
if ((retc = Config.LastError()))
NoGo = eDest.Emsg("Config", retc, "read config file", Cfn);
Config.Close();
// Set the defaults for the export list
//
XPList.Set(DirFlags);
// Return final return code
//
return NoGo;
}
/******************************************************************************/
/* C o n f i g N 2 N */
/******************************************************************************/
int XrdPssSys::ConfigN2N()
{
XrdOucN2NLoader n2nLoader(&eDest, ConfigFN, N2NParms, LocalRoot, 0);
// Skip all of this we are not doing name mapping
//
if (!N2NLib && !LocalRoot) return 0;
// Get the plugin
//
if ((theN2N = n2nLoader.Load(N2NLib, *myVersion)))
return 0;
return 1;
}
/******************************************************************************/
/* C o n f i g X e q */
/******************************************************************************/
int XrdPssSys::ConfigXeq(char *var, XrdOucStream &Config)
{
char myVar[80], *val;
// Process items. for either a local or a remote configuration
//
TS_Xeq("memcache", xcach); // Backward compatibility
TS_Xeq("cache", xcach);
TS_Xeq("cachelib", xcacl);
TS_Xeq("config", xconf);
TS_Xeq("inetmode", xinet);
TS_Xeq("origin", xorig);
TS_Xeq("permit", xperm);
TS_Xeq("setopt", xsopt);
TS_Xeq("trace", xtrac);
TS_Xeq("namelib", xnml);
TS_Xeq("defaults", xdef);
TS_Xeq("export", xexp);
// Copy the variable name as this may change because it points to an
// internal buffer in Config. The vagaries of effeciency. Then get value.
//
strlcpy(myVar, var, sizeof(myVar)); var = myVar;
if (!(val = Config.GetWord()))
{eDest.Emsg("Config", "no value for directive", var);
return 1;
}
// Match directives that take a single argument
//
TS_String("localroot", LocalRoot);
// No match found, complain.
//
eDest.Say("Config warning: ignoring unknown directive '",var,"'.");
Config.Echo();
return 0;
}
/******************************************************************************/
/* g e t C a c h e */
/******************************************************************************/
int XrdPssSys::getCache()
{
XrdOucPinLoader myLib(&eDest,myVersion,"cachelib",cPath);
const char *cName;
bool isCache2;
// First find out if this is a cache2 or old cache library
//
if (myLib.Resolve("?XrdOucGetCache2") == 0)
{cName = "XrdOucGetCache"; isCache2 = false;
} else {
cName = "XrdOucGetCache2"; isCache2 = true;
}
// Get the Object now
//
if (isCache2) {
XrdOucCache2 *(*ep)(XrdSysLogger *, const char *, const char *);
ep = (XrdOucCache2 *(*)(XrdSysLogger *, const char *, const char *))
(myLib.Resolve(cName));
if (!ep) return 0;
XrdOucCache2* theCache2 = ep(eDest.logger(), ConfigFN, cParm);
if (theCache2) XrdPosixXrootd::setCache(theCache2);
return theCache2 != 0;
}
else {
XrdOucCache *(*ep)(XrdSysLogger *, const char *, const char *);
ep = (XrdOucCache *(*)(XrdSysLogger *, const char *, const char *))
(myLib.Resolve(cName));
if (!ep) return 0;
XrdOucCache* theCache = ep(eDest.logger(), ConfigFN, cParm);
if (theCache) XrdPosixXrootd::setCache(theCache);
return theCache != 0;
}
}
/******************************************************************************/
/* g e t D o m a i n */
/******************************************************************************/
const char *XrdPssSys::getDomain(const char *hName)
{
const char *dot = index(hName, '.');
if (dot) return dot+1;
return hName;
}
/******************************************************************************/
/* x c a c h */
/******************************************************************************/
/* Function: xcach
Purpose: To parse the directive: cache <keyword> <value> [...]
<keyword> is one of the following:
debug {0 | 1 | 2}
logstats enables stats logging
max2cache largest read to cache (can be suffixed with k, m, g).
mode {r | w}
pagesize size of each cache page (can be suffixed with k, m, g).
preread [minpages [minrdsz]] [perf nn [recalc]]
r/w enables caching for files opened read/write.
sfiles {on | off | .<sfx>}
size size of cache in bytes (can be suffixed with k, m, g).
Output: 0 upon success or 1 upon failure.
*/
int XrdPssSys::xcach(XrdSysError *Eroute, XrdOucStream &Config)
{
long long llVal, cSize=-1, m2Cache=-1, pSize=-1;
const char *ivN = 0;
char *val, *sfSfx = 0, sfVal = '0', lgVal = '0', dbVal = '0', rwVal = '0';
char eBuff[2048], pBuff[1024], *eP;
struct sztab {const char *Key; long long *Val;} szopts[] =
{{"max2cache", &m2Cache},
{"pagesize", &pSize},
{"size", &cSize}
};
int i, numopts = sizeof(szopts)/sizeof(struct sztab);
// If we have no parameters, then we just use the defaults
//
if (!(val = Config.GetWord()))
{XrdOucEnv::Export("XRDPOSIX_CACHE", "mode=s&optwr=0"); return 0;}
*pBuff = 0;
do{for (i = 0; i < numopts; i++) if (!strcmp(szopts[i].Key, val)) break;
if (i < numopts)
{if (!(val = Config.GetWord())) ivN = szopts[i].Key;
else if (XrdOuca2x::a2sz(*Eroute,szopts[i].Key,val,&llVal,0)) return 1;
else *(szopts[i].Val) = llVal;
} else {
if (!strcmp("debug", val))
{if (!(val = Config.GetWord())
|| ((*val < '0' || *val > '3') && !*(val+1))) ivN = "debug";
else dbVal = *val;
}
else if (!strcmp("logstats", val)) lgVal = '1';
else if (!strcmp("preread", val))
{if ((val = xcapr(Eroute, Config, pBuff))) continue;
if (*pBuff == '?') return 1;
break;
}
else if (!strcmp("r/w", val)) rwVal = '1';
else if (!strcmp("sfiles", val))
{if (sfSfx) {free(sfSfx); sfSfx = 0;}
if (!(val = Config.GetWord())) ivN = "sfiles";
else if (!strcmp("on", val)) sfVal = '1';
else if (!strcmp("off", val)) sfVal = '0';
else if (*val == '.' && strlen(val) < 16) sfSfx = strdup(val);
else ivN = "sfiles";
}
else {Eroute->Emsg("Config","invalid cache keyword -", val); return 1;}
}
if (ivN)
{if (!val) Eroute->Emsg("Config","cache", ivN,"value not specified.");
else Eroute->Emsg("Config", val, "is invalid for cache", ivN);
return 1;
}
} while ((val = Config.GetWord()));
// Construct the envar string
//
strcpy(eBuff, "mode=s&maxfiles=16384"); eP = eBuff + strlen(eBuff);
if (cSize > 0) eP += sprintf(eP, "&cachesz=%lld", cSize);
if (dbVal != '0') eP += sprintf(eP, "&debug=%c", dbVal);
if (m2Cache > 0) eP += sprintf(eP, "&max2cache=%lld", m2Cache);
if (pSize > 0) eP += sprintf(eP, "&pagesz=%lld", pSize);
if (lgVal != '0') strcat(eP, "&optlg=1");
if (sfVal != '0' || sfSfx)
{if (!sfSfx) strcat(eP, "&optsf=1");
else {strcat(eP, "&optsf="); strcat(eBuff, sfSfx); free(sfSfx);}
}
if (rwVal != '0') strcat(eP, "&optwr=1");
if (*pBuff) strcat(eP, pBuff);
XrdOucEnv::Export("XRDPOSIX_CACHE", eBuff);
return 0;
}
/******************************************************************************/
/* x c a c l */
/******************************************************************************/
/* Function: xcacl
Purpose: To parse the directive: cachelib {<path>|default} [<parms>]
<path> the path of the cache library to be used.
<parms> optional parms to be passed
Output: 0 upon success or !0 upon failure.
*/
int XrdPssSys::xcacl(XrdSysError *Eroute, XrdOucStream &Config)
{
char *val, parms[2048];
// Get the path and parms
//
if (!(val = Config.GetWord()) || !val[0])
{Eroute->Emsg("Config", "cachelib not specified"); return 1;}
// Save the path
//
if (cPath) free(cPath);
cPath = (strcmp(val,"default") ? strdup(val) : strdup("libXrdFileCache.so"));
// Get the parameters
//
if (!Config.GetRest(parms, sizeof(parms)))
{Eroute->Emsg("Config", "cachelib parameters too long"); return 1;}
if (cParm) free(cParm);
cParm = (*parms ? strdup(parms) : 0);
// All done
//
return 0;
}
/******************************************************************************/
/* x c a p r */
/******************************************************************************/
/* Function: xcapr
Purpose: To parse the directive: preread [pages [minrd]] [perf pct [calc]]
pages minimum number of pages to preread.
minrd minimum size of read (can be suffixed with k, m, g).
perf preread performance (0 to 100).
calc calc perf every n bytes (can be suffixed with k, m, g).
*/
char *XrdPssSys::xcapr(XrdSysError *Eroute, XrdOucStream &Config, char *pBuff)
{
long long minr = 0, maxv = 0x7fffffff, recb = 50*1024*1024;
int minp = 1, perf = 90, Spec = 0;
char *val;
// Check for our options
//
*pBuff = '?';
if ((val = Config.GetWord()) && isdigit(*val))
{if (XrdOuca2x::a2i(*Eroute,"preread pages",val,&minp,0,32767)) return 0;
if ((val = Config.GetWord()) && isdigit(*val))
{if (XrdOuca2x::a2sz(*Eroute,"preread rdsz",val,&minr,0,maxv))
return 0;
val = Config.GetWord();
}
Spec = 1;
}
if (val && !strcmp("perf", val))
{if (!(val = Config.GetWord()))
{Eroute->Emsg("Config","cache", "preread perf value not specified.");
return 0;
}
if (XrdOuca2x::a2i(*Eroute,"perf",val,&perf,0,100)) return 0;
if ((val = Config.GetWord()) && isdigit(*val))
{if (XrdOuca2x::a2sz(*Eroute,"perf recalc",val,&recb,0,maxv))
return 0;
val = Config.GetWord();
}
Spec = 1;
}
// Construct new string
//
if (!Spec) strcpy(pBuff,"&optpr=1&aprminp=1");
else sprintf(pBuff, "&optpr=1&aprtrig=%lld&aprminp=%d&aprcalc=%lld"
"&aprperf=%d",minr,minp,recb,perf);
return val;
}
/******************************************************************************/
/* x c o n f */
/******************************************************************************/
/* Function: xconf
Purpose: To parse the directive: config <keyword> <value>
<keyword> is one of the following:
workers number of queue workers > 0
Output: 0 upon success or 1 upon failure.
*/
int XrdPssSys::xconf(XrdSysError *Eroute, XrdOucStream &Config)
{
char *val, *kvp;
int kval;
struct Xtab {const char *Key; int *Val;} Xopts[] =
{{"streams", &Streams},
{"workers", &Workers}};
int i, numopts = sizeof(Xopts)/sizeof(struct Xtab);
if (!(val = Config.GetWord()))
{Eroute->Emsg("Config", "options argument not specified."); return 1;}
do{for (i = 0; i < numopts; i++) if (!strcmp(Xopts[i].Key, val)) break;
if (i >= numopts)
Eroute->Say("Config warning: ignoring unknown config option '",val,"'.");
else {if (!(val = Config.GetWord()))
{Eroute->Emsg("Config","config",Xopts[i].Key,"value not specified.");
return 1;
}
kval = strtol(val, &kvp, 10);
if (*kvp || !kval)
{Eroute->Emsg("Config", Xopts[i].Key,
"config value is invalid -", val);
return 1;
}
*(Xopts[i].Val) = kval;
}
val = Config.GetWord();
} while(val && *val);
return 0;
}
/******************************************************************************/
/* x d e f */
/******************************************************************************/
/* Function: xdef
Purpose: Parse: defaults <default options>
Notes: See the oss configuration manual for the meaning of each option.
The actual implementation is defined in XrdOucExport.
Output: 0 upon success or !0 upon failure.
*/
int XrdPssSys::xdef(XrdSysError *Eroute, XrdOucStream &Config)
{
DirFlags = XrdOucExport::ParseDefs(Config, *Eroute, DirFlags);
return 0;
}
/******************************************************************************/
/* x e x p */
/******************************************************************************/
/* Function: xrcp
Purpose: To parse the directive: {export | path} <path> [<options>]
<path> the full path that resides in a remote system.
<options> a blank separated list of options (see XrdOucExport)
Output: 0 upon success or !0 upon failure.
*/
int XrdPssSys::xexp(XrdSysError *Eroute, XrdOucStream &Config)
{
// Parse the arguments
//
return (XrdOucExport::ParsePath(Config, *Eroute, XPList, DirFlags) ? 0 : 1);
}
/******************************************************************************/
/* x i n e t */
/******************************************************************************/
/* Function: xinet
Purpose: To parse the directive: inetmode v4 | v6
v4 use only IPV4 addresses to connect to servers.
v6 use IPV4 mapped addresses or IPV6 addresses, as needed.
Output: 0 upon success or !0 upon failure.
*/
int XrdPssSys::xinet(XrdSysError *Eroute, XrdOucStream &Config)
{
char *val;
bool usev4;
// Get the mode
//
if (!(val = Config.GetWord()) || !val[0])
{Eroute->Emsg("Config", "inetmode value not specified"); return 1;}
// Validate the value
//
if (!strcmp(val, "v4")) usev4 = true;
else if (!strcmp(val, "v6")) usev4 = false;
else {Eroute->Emsg("Config", "invalid inetmode value -", val); return 1;}
// Set the mode
//
XrdPosixXrootd::setIPV4(usev4);
return 0;
}
/******************************************************************************/
/* x n m l */
/******************************************************************************/
/* Function: xnml
Purpose: To parse the directive: namelib <path> [<parms>]
<path> the path of the filesystem library to be used.
<parms> optional parms to be passed
Output: 0 upon success or !0 upon failure.
*/
int XrdPssSys::xnml(XrdSysError *Eroute, XrdOucStream &Config)
{
char *val, parms[1024];
// Get the path
//
if (!(val = Config.GetWord()) || !val[0])
{Eroute->Emsg("Config", "namelib not specified"); return 1;}
// Record the path
//
if (N2NLib) free(N2NLib);
N2NLib = strdup(val);
// Record any parms
//
if (!Config.GetRest(parms, sizeof(parms)))
{Eroute->Emsg("Config", "namelib parameters too long"); return 1;}
if (N2NParms) free(N2NParms);
N2NParms = (*parms ? strdup(parms) : 0);
return 0;
}
/******************************************************************************/
/* x o r i g */
/******************************************************************************/
/* Function: xorig
Purpose: Parse: origin {= [<dest>] | <dest>}
Where: <dest> <host>[+][:<port>|<port>]
Output: 0 upon success or !0 upon failure.
*/
int XrdPssSys::xorig(XrdSysError *errp, XrdOucStream &Config)
{
XrdOucTList *tp = 0;
char *val, *mval = 0;
int i, port = 0;
// We are looking for regular managers. These are our points of contact
//
if (!(val = Config.GetWord()))
{errp->Emsg("Config","origin host name not specified"); return 1;}
// Check for outgoing proxy
//
if (!strcmp(val, "="))
{pfxProxy = outProxy = true;
if (!(val = Config.GetWord())) return 0;
}
else pfxProxy = outProxy = false;
mval = strdup(val);
// Check if there is a port number. This could be as ':port' or ' port'.
//
if (!(val = index(mval,':'))) val = Config.GetWord();
else {*val = '\0'; val++;}
// Validate the port number
//
if (val)
{if (isdigit(*val))
{if (XrdOuca2x::a2i(*errp,"origin port",val,&port,1,65535))
port = 0;
}
else if (!(port = XrdNetUtils::ServPort(val)))
{errp->Emsg("Config", "unable to find tcp service", val);
port = 0;
}
} else errp->Emsg("Config","origin port not specified for",mval);
// If port is invalid or missing, fail this
//
if (!port) {free(mval); return 1;}
// For proxies we need not expand 'host+' spec but need to supress the plus
//
if ((i = strlen(mval)) > 1 && mval[i-1] == '+') mval[i-1] = 0;
// We used to support multiple destinations in the URL but the new client
// does not support this. So, we only provide a single destination here. The
// original code is left commented out just in case we actually revert to this.
//
// tp = ManList;
// while(tp && (strcmp(tp->text, mval) || tp->val != port)) tp = tp->next;
// if (tp) errp->Emsg("Config","Duplicate origin",mval);
// else ManList = new XrdOucTList(mval, port, ManList);
if (ManList) delete ManList;
ManList = new XrdOucTList(mval, port);
// We now set the default dirlist flag based on whether the origin is in or out
// of domain. Composite listings are normally disabled for out of domain nodes.
//
if (!index(mval, '.') || !strcmp(getDomain(mval), getDomain(myHost)))
XrdPosixXrootd::setEnv("DirlistDflt", 1);
// All done
//
free(mval);
return tp != 0;
}
/******************************************************************************/
/* x p e r m */
/******************************************************************************/
/* Function: xperm
Purpose: To parse the directive: permit [/] [*] <name>
netgroup name the host must be a member of. For DNS names,
A single asterisk may be specified anywhere in the name.
Output: 0 upon success or !0 upon failure.
*/
int XrdPssSys::xperm(XrdSysError *Eroute, XrdOucStream &Config)
{ char *val;
bool pType[PolNum] = {false, false};
int i;
do {if (!(val = Config.GetWord()))
{Eroute->Emsg("Config", "permit target not specified"); return 1;}
if (!strcmp(val, "/")) pType[PolPath] = true;
else if (!strcmp(val, "*")) pType[PolObj ] = true;
else break;
} while(1);
if (!pType[PolPath] && !pType[PolObj])
pType[PolPath] = pType[PolObj] = true;
for (i = 0; i < PolNum; i++)
{if (pType[i])
{if (!Police[i]) Police[i] = new XrdNetSecurity();
Police[i]->AddHost(val);
}
}
return 0;
}
/******************************************************************************/
/* x s o p t */
/******************************************************************************/
/* Function: xsopt
Purpose: To parse the directive: setopt <keyword> <value>
<keyword> is an XrdClient option keyword.
<value> is the value the option is to have.