Implement NFS timeout

10 files changed, 102 insertions, 35 deletions

diff --git a/cmake/modules/FindNFS.cmake b/cmake/modules/FindNFS.cmake
index c2414a1f43..d62d4e6f1b 100644
--- a/cmake/modules/FindNFS.cmake
+++ b/cmake/modules/FindNFS.cmake
@@ -36,6 +36,44 @@ if(NFS_FOUND)
   set(NFS_INCLUDE_DIRS ${NFS_INCLUDE_DIR})
   set(NFS_DEFINITIONS -DHAS_FILESYSTEM_NFS=1)
 
+  set(CMAKE_REQUIRED_INCLUDES "${NFS_INCLUDE_DIR}")
+  set(CMAKE_REQUIRED_LIBRARIES ${NFS_LIBRARY})
+  if(CMAKE_SYSTEM_NAME MATCHES "Windows")
+    set(NFS_CXX_INCLUDE "#include <Winsock2.h>")
+    set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} "ws2_32.lib")
+  endif()
+
+# Check for nfs_set_timeout
+  check_cxx_source_compiles("
+     ${NFS_CXX_INCLUDE}
+     #include <nfsc/libnfs.h>
+     int main()
+     {
+       nfs_set_timeout(NULL, 0);
+     }
+  " NFS_SET_TIMEOUT)
+
+  if(NFS_SET_TIMEOUT)
+    list(APPEND NFS_DEFINITIONS -DHAS_NFS_SET_TIMEOUT)
+  endif()
+
+# Check for mount_getexports_timeout
+  check_cxx_source_compiles("
+     ${NFS_CXX_INCLUDE}
+     #include <nfsc/libnfs.h>
+     int main()
+     {
+       mount_getexports_timeout(NULL, 0);
+     }
+  " NFS_MOUNT_GETEXPORTS_TIMEOUT)
+
+  if(NFS_MOUNT_GETEXPORTS_TIMEOUT)
+    list(APPEND NFS_DEFINITIONS -DHAS_NFS_MOUNT_GETEXPORTS_TIMEOUT)
+  endif()
+
+  unset(CMAKE_REQUIRED_INCLUDES)
+  unset(CMAKE_REQUIRED_LIBRARIES)
+
   if(NOT TARGET NFS::NFS)
     add_library(NFS::NFS UNKNOWN IMPORTED)
     if(NFS_LIBRARY)
diff --git a/project/BuildDependencies/scripts/0_package.target-win10-arm.list b/project/BuildDependencies/scripts/0_package.target-win10-arm.list
index df88f74da9..77e974461f 100644
--- a/project/BuildDependencies/scripts/0_package.target-win10-arm.list
+++ b/project/BuildDependencies/scripts/0_package.target-win10-arm.list
@@ -23,7 +23,7 @@ libcdio-2.1.0-win10-arm-v141-20200112.7z
 libfribidi-1.0.8-win10-arm-v141-20200105.7z
 libiconv-1.16-win10-arm-v141-20200105.7z
 libmicrohttpd-0.9.69-win10-arm-v141-20200105.7z
-libnfs-4.0.0-win10-arm-v141-20200105.7z
+libnfs-4.0.0-win10-arm-v142-20200605.7z
 libudfread-1.0.0-win10-arm-v141-20200411.7z
 libxml2-2.9.9-win10-arm-v141-20200105.7z
 libxslt-1.1.34-win10-arm-v141-20200105.7z
diff --git a/project/BuildDependencies/scripts/0_package.target-win10-win32.list b/project/BuildDependencies/scripts/0_package.target-win10-win32.list
index b70c92aa7d..60458e0890 100644
--- a/project/BuildDependencies/scripts/0_package.target-win10-win32.list
+++ b/project/BuildDependencies/scripts/0_package.target-win10-win32.list
@@ -23,7 +23,7 @@ libcdio-2.1.0-win10-win32-v141-20200112.7z
 libfribidi-1.0.8-win10-win32-v141-20200105.7z
 libiconv-1.16-win10-win32-v141-20200105.7z
 libmicrohttpd-0.9.69-win10-win32-v141-20200105.7z
-libnfs-4.0.0-win10-win32-v141-20200105.7z
+libnfs-4.0.0-win10-win32-v142-20200605.7z
 libudfread-1.0.0-win10-win32-v141-20200411.7z
 libxml2-2.9.9-win10-win32-v141-20200105.7z
 libxslt-1.1.34-win10-win32-v141-20200105.7z
diff --git a/project/BuildDependencies/scripts/0_package.target-win10-x64.list b/project/BuildDependencies/scripts/0_package.target-win10-x64.list
index 9b5a20c82d..531baa1163 100644
--- a/project/BuildDependencies/scripts/0_package.target-win10-x64.list
+++ b/project/BuildDependencies/scripts/0_package.target-win10-x64.list
@@ -23,7 +23,7 @@ libcdio-2.1.0-win10-x64-v141-20200112.7z
 libfribidi-1.0.8-win10-x64-v141-20200105.7z
 libiconv-1.16-win10-x64-v141-20200105.7z
 libmicrohttpd-0.9.69-win10-x64-v141-20200105.7z
-libnfs-4.0.0-win10-x64-v141-20200105.7z
+libnfs-4.0.0-win10-x64-v142-20200605.7z
 libudfread-1.0.0-win10-x64-v141-20200411.7z
 libxml2-2.9.9-win10-x64-v141-20200105.7z
 libxslt-1.1.34-win10-x64-v141-20200105.7z
diff --git a/project/BuildDependencies/scripts/0_package.target-win32.list b/project/BuildDependencies/scripts/0_package.target-win32.list
index dd0dc30a78..55e4cd455f 100644
--- a/project/BuildDependencies/scripts/0_package.target-win32.list
+++ b/project/BuildDependencies/scripts/0_package.target-win32.list
@@ -28,7 +28,7 @@ libfribidi-1.0.8-win32-v141-20200105.7z
 libiconv-1.16-win10-win32-v141-20200105.7z
 libjpeg-turbo-2.0.3-win32-v141-20200105.7z
 libmicrohttpd-0.9.69-win32-v141-20200105.7z
-libnfs-4.0.0-win32-v141-20200105.7z
+libnfs-4.0.0-win32-v142-20200605.7z
 libplist-2.1.0-win32-v141-20200105.7z
 libpng-1.6.37-win32-v141-20200105.7z
 libudfread-1.0.0-win32-v141-20200411.7z
diff --git a/project/BuildDependencies/scripts/0_package.target-x64.list b/project/BuildDependencies/scripts/0_package.target-x64.list
index ebbc74479b..8f0e2c0bc7 100644
--- a/project/BuildDependencies/scripts/0_package.target-x64.list
+++ b/project/BuildDependencies/scripts/0_package.target-x64.list
@@ -26,7 +26,7 @@ libcec-4.0.4-x64-v141-20200105.7z
 libfribidi-1.0.8-x64-v141-20200105.7z
 libiconv-1.16-x64-v141-20200105.7z
 libmicrohttpd-0.9.69-x64-v141-20200105.7z
-libnfs-4.0.0-x64-v141-20200105.7z
+libnfs-4.0.0-x64-v142-20200605.7z
 libplist-2.1.0-x64-v141-20200105.7z
 libudfread-1.0.0-x64-v141-20200411.7z
 libxml2-2.9.9-x64-v141-20200105.7z
diff --git a/xbmc/filesystem/NFSFile.cpp b/xbmc/filesystem/NFSFile.cpp
index 856012affb..177b71062f 100644
--- a/xbmc/filesystem/NFSFile.cpp
+++ b/xbmc/filesystem/NFSFile.cpp
@@ -12,7 +12,10 @@
 
 #include "NFSFile.h"
 
+#include "ServiceBroker.h"
 #include "network/DNSNameCache.h"
+#include "settings/AdvancedSettings.h"
+#include "settings/SettingsComponent.h"
 #include "threads/SingleLock.h"
 #include "threads/SystemClock.h"
 #include "utils/StringUtils.h"
@@ -29,19 +32,19 @@
 #include <sys\stat.h>
 #endif
 
-//KEEP_ALIVE_TIMEOUT is decremented every half a second
-//360 * 0.5s == 180s == 3mins
-//so when no read was done for 3mins and files are open
-//do the nfs keep alive for the open files
+// KEEP_ALIVE_TIMEOUT is decremented every half a second
+// 360 * 0.5s == 180s == 3mins
+// so when no read was done for 3mins and files are open
+// do the nfs keep alive for the open files
 #define KEEP_ALIVE_TIMEOUT 360
 
-//6 mins (360s) cached context timeout
+// 6 mins (360s) cached context timeout
 #define CONTEXT_TIMEOUT 360000
 
-//return codes for getContextForExport
-#define CONTEXT_INVALID  0    //getcontext failed
-#define CONTEXT_NEW      1    //new context created
-#define CONTEXT_CACHED   2    //context cached and therefore already mounted (no new mount needed)
+// return codes for getContextForExport
+#define CONTEXT_INVALID 0 // getcontext failed
+#define CONTEXT_NEW 1 // new context created
+#define CONTEXT_CACHED 2 // context cached and therefore already mounted (no new mount needed)
 
 #if defined(TARGET_WINDOWS)
 #define S_IRGRP 0
@@ -53,10 +56,7 @@
 using namespace XFILE;
 
 CNfsConnection::CNfsConnection()
-: m_pNfsContext(NULL)
-, m_exportPath("")
-, m_hostName("")
-, m_resolvedHostName("")
+  : m_pNfsContext(NULL), m_exportPath(""), m_hostName(""), m_resolvedHostName("")
 {
 }
 
@@ -65,32 +65,38 @@ CNfsConnection::~CNfsConnection()
   Deinit();
 }
 
-void CNfsConnection::resolveHost(const CURL &url)
+void CNfsConnection::resolveHost(const CURL& url)
 {
-  //resolve if hostname has changed
+  // resolve if hostname has changed
   CDNSNameCache::Lookup(url.GetHostName(), m_resolvedHostName);
 }
 
-std::list<std::string> CNfsConnection::GetExportList(const CURL &url)
+std::list<std::string> CNfsConnection::GetExportList(const CURL& url)
 {
-    std::list<std::string> retList;
+  std::list<std::string> retList;
 
-    struct exportnode *exportlist, *tmp;
-    exportlist = mount_getexports(m_resolvedHostName.c_str());
-    tmp = exportlist;
+  struct exportnode *exportlist, *tmp;
+#ifdef HAS_NFS_MOUNT_GETEXPORTS_TIMEOUT
+  exportlist = mount_getexports_timeout(
+      m_resolvedHostName.c_str(),
+      CServiceBroker::GetSettingsComponent()->GetAdvancedSettings()->m_nfsTimeout * 1000);
+#else
+  exportlist = mount_getexports(m_resolvedHostName.c_str());
+#endif
+  tmp = exportlist;
 
-    for(tmp = exportlist; tmp!=NULL; tmp=tmp->ex_next)
-    {
-      std::string exportStr = std::string(tmp->ex_dir);
+  for (tmp = exportlist; tmp != NULL; tmp = tmp->ex_next)
+  {
+    std::string exportStr = std::string(tmp->ex_dir);
 
-      retList.push_back(exportStr);
-    }
+    retList.push_back(exportStr);
+  }
 
-    mount_free_export_list(exportlist);
-    retList.sort();
-    retList.reverse();
+  mount_free_export_list(exportlist);
+  retList.sort();
+  retList.reverse();
 
-    return retList;
+  return retList;
 }
 
 void CNfsConnection::clearMembers()
@@ -181,6 +187,7 @@ int CNfsConnection::getContextForExport(const std::string &exportname)
     {
       struct contextTimeout tmp;
       CSingleLock lock(openContextLock);
+      setTimeout(m_pNfsContext);
       tmp.pContext = m_pNfsContext;
       tmp.lastAccessedTime = XbmcThreads::SystemClockMillis();
       m_openContextMap[exportname] = tmp; //add context to list of all contexts
@@ -426,6 +433,7 @@ int CNfsConnection::stat(const CURL &url, NFSSTAT *statbuff)
 
     if(pTmpContext)
     {
+      setTimeout(pTmpContext);
       //we connect to the directory of the path. This will be the "root" path of this connection then.
       //So all fileoperations are relative to this mountpoint...
       nfsRet = nfs_mount(pTmpContext, m_resolvedHostName.c_str(), exportPath.c_str());
@@ -465,6 +473,15 @@ void CNfsConnection::AddIdleConnection()
   m_IdleTimeout = 180;
 }
 
+
+void CNfsConnection::setTimeout(struct nfs_context* context)
+{
+#ifdef HAS_NFS_SET_TIMEOUT
+  uint32_t timeout = CServiceBroker::GetSettingsComponent()->GetAdvancedSettings()->m_nfsTimeout;
+  nfs_set_timeout(context, timeout > 0 ? timeout * 1000 : -1);
+#endif
+}
+
 CNfsConnection gNfsConnection;
 
 CNFSFile::CNFSFile()
@@ -589,7 +606,7 @@ int CNFSFile::Stat(const CURL& url, struct __stat64* buffer)
   {
     if(buffer)
     {
-#if defined(TARGET_WINDOWS)//! @todo get rid of this define after gotham v13
+#if defined(TARGET_WINDOWS) //! @todo get rid of this define after gotham v13
       memcpy(buffer, &tmpBuffer, sizeof(struct __stat64));
 #else
       memset(buffer, 0, sizeof(struct __stat64));
diff --git a/xbmc/filesystem/NFSFile.h b/xbmc/filesystem/NFSFile.h
index f1f54b562b..afc1958acf 100644
--- a/xbmc/filesystem/NFSFile.h
+++ b/xbmc/filesystem/NFSFile.h
@@ -95,6 +95,7 @@ private:
   void destroyContext(const std::string &exportName);
   void resolveHost(const CURL &url);//resolve hostname by dnslookup
   void keepAlive(std::string _exportPath, struct nfsfh  *_pFileHandle);
+  static void setTimeout(struct nfs_context* context);
 };
 
 extern CNfsConnection gNfsConnection;
diff --git a/xbmc/settings/AdvancedSettings.cpp b/xbmc/settings/AdvancedSettings.cpp
index 5e170681f2..7138b0a639 100644
--- a/xbmc/settings/AdvancedSettings.cpp
+++ b/xbmc/settings/AdvancedSettings.cpp
@@ -421,6 +421,8 @@ void CAdvancedSettings::Initialize()
 
   m_userAgent = g_sysinfo.GetUserAgent();
 
+  m_nfsTimeout = 5;
+
   m_initialized = true;
 }
 
@@ -501,6 +503,14 @@ void CAdvancedSettings::ParseSettingsFile(const std::string &file)
         passTag->LinkEndChild(new TiXmlText("*****"));
       }
     }
+    if (network->FirstChildElement("nfstimeout"))
+    {
+#ifdef HAS_NFS_SET_TIMEOUT
+      XMLUtils::GetUInt(network, "nfstimeout", m_nfsTimeout, 0, 3600);
+#else
+      CLog::Log(LOGWARNING, "nfstimeout unsupported");
+#endif
+    }
   }
 
   // Dump contents of copied AS.xml to debug log
diff --git a/xbmc/settings/AdvancedSettings.h b/xbmc/settings/AdvancedSettings.h
index b0f4c42cc3..0bb22429c4 100644
--- a/xbmc/settings/AdvancedSettings.h
+++ b/xbmc/settings/AdvancedSettings.h
@@ -365,6 +365,7 @@ class CAdvancedSettings : public ISettingCallback, public ISettingsHandler
     bool m_openGlDebugging;
 
     std::string m_userAgent;
+    uint32_t m_nfsTimeout;
 
   private:
     void Initialize();