Add new API call "sysctllist"

Returns the list of all setable sysctl values

REST Request:
-------------------------------
PUT /sysadm/systemmanager
{
   "action" : "sysctllist"
}

REST Response:
-------------------------------
{
    "args": {
        "sysctllist": {
            "compat.ia32.maxdsiz": "536870912",
            "compat.ia32.maxssiz": "67108864",
            "compat.ia32.maxvmem": "0",
            "compat.linux.osname": "Linux",
            "compat.linux.osrelease": "2.6.18",
            "compat.linux.oss_version": "198144",
            "compat.linux32.maxdsiz": "536870912",
            "compat.linux32.maxssiz": "67108864",
            "compat.linux32.maxvmem": "0",
            ....
        }
    }
}

WebSocket Request:
-------------------------------
{
   "name" : "systemmanager",
   "namespace" : "sysadm",
   "id" : "fooid",
   "args" : {
      "action" : "sysctllist"
   }
}

WebSocket Response:
-------------------------------
{
  "args": {
    "sysctllist": {
      "compat.ia32.maxdsiz": "536870912",
      "compat.ia32.maxssiz": "67108864",
      "compat.ia32.maxvmem": "0",
      "compat.linux.osname": "Linux",
      "compat.linux.osrelease": "2.6.18",
      "compat.linux.oss_version": "198144",
      "compat.linux32.maxdsiz": "536870912",
      "compat.linux32.maxssiz": "67108864",
      "compat.linux32.maxvmem": "0",
      ....
    }
  },
  "id": "fooid",
  "name": "response",
  "namespace": "sysadm"
}

src/server/WebBackend.cpp

@@ -329,6 +329,10 @@ RestOutputStruct::ExitCode WebSocket::EvaluateSysadmSystemMgmtRequest(const QJso
 	ok = true;
         out->insert("procinfo", sysadm::SysMgmt::procInfo());
       }
+      if(act=="sysctllist"){
+	ok = true;
+        out->insert("sysctllist", sysadm::SysMgmt::sysctlList());
+      }
       if(act=="systeminfo"){
 	ok = true;
         out->insert("systeminfo", sysadm::SysMgmt::systemInfo());

src/server/library/sysadm-systemmanager.cpp

@@ -291,6 +291,26 @@ QJsonObject SysMgmt::procInfo() {
   return retObject;
 }
 
+// Return list of sysctls and their values
+QJsonObject SysMgmt::sysctlList() {
+  QJsonObject retObject;
+
+  // This can be cleaned up and not use CLI
+  QStringList output = General::RunCommand("sysctl -W -a").split("\n");
+
+  QString sysctl, value;
+  for(int i=0; i<output.length(); i++){
+    if ( output.at(i).isEmpty())
+      continue;
+
+    sysctl = output.at(i).section(":", 0, 0);
+    value = output.at(i).section(":", 1, -1).simplified();
+    retObject.insert(sysctl, value);
+  }
+
+  return retObject;
+}
+
 // Return a bunch of various system information
 QJsonObject SysMgmt::systemInfo() {
   QJsonObject retObject;

src/server/library/sysadm-systemmanager.h

@@ -21,6 +21,7 @@ public:
 	static QJsonObject killProc(QJsonObject);
 	static QJsonObject memoryStats();
 	static QJsonObject procInfo();
+	static QJsonObject sysctlList();
 	static QJsonObject systemInfo();
 };