Retrieve socket connection from XrdStorageMaker

[4quarks]

Hi!

We are currently working in the enhancement of the XrdAdaptor logs. We need to retrieve an object with the socket information so we can show the endpoint used to access data. For example: Data was accessed at 174.65.98.3:67543

• Where is this data? In XrdCl. For example, the class XrdNetAddrInfo contains all the parameters that we are interested in. https://github.com/xrootd/xrootd/blob/master/src/XrdNet/XrdNetAddrInfo.hh#L53

• Where is the trigger of the code? The execution of the connections starts (in CMSSW) at: auto status = m_fs.Prepare(m_fileList, XrdCl::PrepareFlags::Stage, 0, this); https://github.com/cms-sw/cmssw/blob/master/Utilities/XrdAdaptor/plugins/XrdStorageMaker.cc#L26

• Examples of possible solutions:

  1. pSubStreams[0]->socket->GetAddress() https://github.com/xrootd/xrootd/blob/master/src/XrdCl/XrdClStream.cc#L641 https://github.com/xrootd/xrootd/blob/master/src/XrdNet/XrdNetAddr.hh#L41 Result: edm::LogWarning("XrdAdaptor") << "Connection established at: " << m_fs.pSubStreams[0]->socket->GetAddress().IP.v4.sin_addr;

2. locations->At(i).GetAddress() https://github.com/xrootd/xrootd/blob/master/src/XrdCl/XrdClXRootDResponses.hh#L86 Result: edm::LogWarning("XrdAdaptor") << "Connection established at: " <<m_fs.locations->At(0).GetAddress(); We know that m_fs doesn't have any attribute called neither locations nor pSubStreams (that would be too easy). It's just to exemplify what we want to obtain.

• What are we asking here? Our nightmare is to know how we can retrieve that socket data from CMSSW. So, we would really appreciate if you could please help/guide us to access some variable so that we can retrieve the data we need.

Thanks!

[cmsbuild]

A new Issue was created by @4quarks 4Quarks.

@Dr15Jones, @perrotta, @dpiparo, @makortel, @smuzaffar, @qliphy can you please review it and eventually sign/assign? Thanks.

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[makortel]

assign core

[cmsbuild]

New categories assigned: core

@Dr15Jones,@smuzaffar,@makortel you have been requested to review this Pull request/Issue and eventually sign? Thanks

[makortel]

Hi @bbockelm, would you be able to answer to this question?