XRootD
XrdTlsCrl Namespace Reference

Functions

void * Refresh (void *parg)
 

Function Documentation

◆ Refresh()

void* XrdTlsCrl::Refresh ( void *  parg)

Definition at line 83 of file XrdTlsContext.cc.

84 {
85  EPNAME("Refresh");
86  int sleepTime;
87  bool doreplace;
88 
89 // Get the implementation details
90 //
91  XrdTlsContextImpl *ctxImpl = static_cast<XrdTlsContextImpl*>(parg);
92 
93 // Indicate we have started in the trace record
94 //
95  DBG_CTX("CRL refresh started.")
96 
97 // Do this forever but first get the sleep time
98 //
99 do{ctxImpl->crlMutex.ReadLock();
100  sleepTime = ctxImpl->Parm.crlRT;
101  ctxImpl->crlMutex.UnLock();
102 
103 // We may have been cancelled, in which case we just exit
104 //
105  if (!sleepTime)
106  {ctxImpl->crlMutex.WriteLock();
107  ctxImpl->crlRunning = false;
108  ctxImpl->crlMutex.UnLock();
109  DBG_CTX("CRL refresh ending by request!");
110  return (void *)0;
111  }
112 
113 // Indicate we how long before a refresh
114 //
115  DBG_CTX("CRL refresh will happen in " <<sleepTime <<" seconds.");
116 
117 // Now sleep the request amount of time
118 //
119  XrdSysTimer::Snooze(sleepTime);
120 
121  if (ctxImpl->owner->x509Verify() || ctxImpl->owner->newHostCertificateDetected()) {
122  // Check if this context is still alive. Generally, it never gets deleted.
123  //
124  ctxImpl->crlMutex.WriteLock();
125  if (!ctxImpl->owner) break;
126 
127  // We clone the original, this will give us the latest crls (i.e. refreshed).
128  // We drop the lock while doing so as this may take a long time. This is
129  // completely safe to do because we implicitly own the implementation.
130  //
131  ctxImpl->crlMutex.UnLock();
132  XrdTlsContext *newctx = ctxImpl->owner->Clone();
133 
134  // Verify that the context was properly built
135  //
136  if (!newctx || !newctx->isOK())
137  {XrdTls::Emsg("CrlRefresh:","Refresh of context failed!!!",false);
138  continue;
139  }
140 
141  // OK, set the new context to be used next time Session() is called.
142  //
143  ctxImpl->crlMutex.WriteLock();
144  doreplace = (ctxImpl->ctxnew != 0);
145  if (doreplace) delete ctxImpl->ctxnew;
146  ctxImpl->ctxnew = newctx;
147  ctxImpl->crlMutex.UnLock();
148 
149  // Do some debugging
150  //
151  if (doreplace) {DBG_CTX("CRL refresh created replacement x509 store.");}
152  else {DBG_CTX("CRL refresh created new x509 store.");}
153  }
154  } while(true);
155 
156 // If we are here the context that started us has gone away and we are done
157 //
158  bool keepctx = ctxImpl->flsRunning;
159  ctxImpl->crlRunning = false;
160  ctxImpl->crlMutex.UnLock();
161  if (!keepctx) delete ctxImpl;
162  return (void *)0;
163 }
#define EPNAME(x)
Definition: XrdBwmTrace.hh:56
#define DBG_CTX(y)
Definition: XrdTlsTrace.hh:39
static void Snooze(int seconds)
Definition: XrdSysTimer.cc:168
XrdTlsContext * Clone(bool full=true, bool startCRLRefresh=false)
bool newHostCertificateDetected()
static void Emsg(const char *tid, const char *msg=0, bool flush=true)
Definition: XrdTls.cc:104
XrdTlsContext * owner
XrdTlsContext::CTX_Params Parm
XrdTlsContext * ctxnew
XrdSysRWLock crlMutex
int crlRT
crl refresh interval time in seconds

References XrdTlsContext::Clone(), XrdTlsContextImpl::crlMutex, XrdTlsContext::CTX_Params::crlRT, XrdTlsContextImpl::crlRunning, XrdTlsContextImpl::ctxnew, DBG_CTX, XrdTls::Emsg(), EPNAME, XrdTlsContextImpl::flsRunning, XrdTlsContext::isOK(), XrdTlsContext::newHostCertificateDetected(), XrdTlsContextImpl::owner, XrdTlsContextImpl::Parm, XrdSysRWLock::ReadLock(), XrdSysTimer::Snooze(), XrdSysRWLock::UnLock(), XrdSysRWLock::WriteLock(), and XrdTlsContext::x509Verify().

Referenced by XrdDigAuth::Authorize(), and XrdTlsContext::SetCrlRefresh().

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