AUTH: Add extra debug messages for the AUTH OFS plugin loading and make

sure the newly built OFS library follows the XRootD conventions when it
comes to numbering otherwise the XrdSysPlugin will not be able to dlopen
and load the necessary symbols for it.

Author: esindril

auth_plugin/CMakeLists.txt

@@ -98,19 +98,19 @@ set_target_properties(EosAuthProto-Objects
 #-------------------------------------------------------------------------------
 # EosAuthOfs library
 #-------------------------------------------------------------------------------
-add_library(EosAuthOfs MODULE
+add_library(EosAuthOfs-${XRDPLUGIN_SOVERSION} MODULE
   EosAuthOfs.cc  EosAuthOfs.hh
   EosAuthOfsFile.cc EosAuthOfsFile.hh
   EosAuthOfsDirectory.cc EosAuthOfsDirectory.hh)
 
 target_link_libraries(
-  EosAuthOfs PRIVATE
+  EosAuthOfs-${XRDPLUGIN_SOVERSION} PRIVATE
   EosAuthProto-Objects
   EosCommon
   ZMQ::ZMQ
   XROOTD::PRIVATE)  
 
-install(TARGETS EosAuthOfs
+install(TARGETS EosAuthOfs-${XRDPLUGIN_SOVERSION}
   LIBRARY DESTINATION ${CMAKE_INSTALL_FULL_LIBDIR}
   RUNTIME DESTINATION ${CMAKE_INSTALL_FULL_BINDIR}
   ARCHIVE DESTINATION ${CMAKE_INSTALL_FULL_LIBDIR})

auth_plugin/EosAuthOfs.cc

@@ -44,7 +44,7 @@
 #include <google/protobuf/io/zero_copy_stream_impl.h>
 
 // The global OFS handle
-eos::auth::EosAuthOfs* eos::auth::gOFS;
+eos::auth::EosAuthOfs* eos::auth::gOFS = nullptr;
 
 extern XrdSysError OfsEroute;
 extern XrdOfs* XrdOfsFS;
@@ -69,10 +69,11 @@ extern "C"
   //!
   //! @returns configures and returns our MgmOfs object
   //------------------------------------------------------------------------------
-  XrdSfsFileSystem* XrdSfsGetFileSystem2(XrdSfsFileSystem* native_fs,
-                                         XrdSysLogger* lp,
-                                         const char* configfn,
-                                         XrdOucEnv* envP)
+  XrdSfsFileSystem*
+  XrdSfsGetFileSystem2(XrdSfsFileSystem* native_fs,
+                       XrdSysLogger* lp,
+                       const char* configfn,
+                       XrdOucEnv* envP)
   {
     if (eos::auth::gOFS) {
       // File system object already initialized
@@ -113,12 +114,15 @@ extern "C"
   {
     if (eos::auth::gOFS) {
       // File system object already initialized
+      OfsEroute.SetPrefix("AuthOfs_");
+      OfsEroute.logger(lp);
+      OfsEroute.Say("info=\"return already loaded AUTH OFS pointer\"");
       return eos::auth::gOFS;
     }
 
     return XrdSfsGetFileSystem2(native_fs, lp, configfn, nullptr);
   }
-}
+} // extern "C"
 
 EOSAUTHNAMESPACE_BEGIN