Initial commit from 2.1.2-1

[ultramonkey-l7/ultramonkey-l7-v2.git] / module / protocol / module_sslid_hash_map.cpp

diff --git a/module/protocol/module_sslid_hash_map.cpp b/module/protocol/module_sslid_hash_map.cpp
new file mode 100644 (file)
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--- /dev/null
+++ b/module/protocol/module_sslid_hash_map.cpp
@@ -0,0 +1,158 @@
+/*
+ * @file  module_sslid_hash_map.cpp
+ * @brief sslid hashmap container.
+ * @brief this module provide session persistence by SSL session ID.
+ *
+ * L7VSD: Linux Virtual Server for Layer7 Load Balancing
+ * Copyright (C) 2008  NTT COMWARE Corporation.
+ * Copyright (C) 2009  Shinya TAKEBAYASHI
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ **********************************************************************/
+
+#include <iostream>
+#include <sstream>
+#include <list>
+#include <string>
+#include <tr1/unordered_map>
+#include <string.h>
+#include "l7vs_dest.h"
+#include "protomod_sslid.h"
+#include "module_sslid_hash_map.h"
+
+
+CSSLIDMap::CSSLIDMap()
+{
+  listsize = 0;
+}
+
+
+CSSLIDMap::~CSSLIDMap()
+{
+}
+
+
+void CSSLIDMap::allocate(unsigned int size)
+{
+  m = new IDMAP;
+  l = new IDLIST;
+  listsize = size;
+}
+
+
+void CSSLIDMap::destroy(void)
+{
+  if (m) {
+    delete m;
+    m = NULL;
+  }
+
+  if (l) {
+    delete l;
+    l = NULL;
+  }
+}
+
+
+void CSSLIDMap::add(const std::string key, struct l7vs_dest data)
+{
+  IDMAP::iterator it;
+
+  if (m->size() >= listsize) {
+    m->erase(*(l->begin()));
+    l->pop_front();
+
+  }
+
+  m->insert(IDMAP::value_type(key, data));
+  it = m->find(key);
+  l->push_back(it);
+}
+
+
+bool CSSLIDMap::search(const std::string key, l7vs_dest **data)
+{
+  bool retval;
+
+  IDMAP::const_iterator it = m->find(key);
+
+  if (it == m->end()) {
+    retval = false;
+
+  } else {
+    *data = (struct l7vs_dest*)&it->second;
+    retval = true;
+  }
+
+  return retval;
+}
+
+
+void *CSSLIDMap::getIDMAP(void)
+{
+  return (void *)m;
+}
+
+
+void *CSSLIDMap::getIDLIST(void)
+{
+  return (void *)l;
+}
+
+int CSSLIDMap::getLISTSIZE(void)
+{
+  return listsize;
+}
+
+
+void CSSLIDMap::setPointer(const void *keymap, const void *keylist, unsigned int size)
+{
+  m = static_cast<IDMAP *> (const_cast<void*> (keymap));
+  l = static_cast<IDLIST *> (const_cast<void*> (keylist));
+  listsize = size;
+}
+
+
+void CSSLIDMap::construct_sessionlist(struct l7vs_sslid_service* sslid_service)
+{
+  int pick = 0;
+  IDMAP::const_iterator it;
+  
+  for (it = m->begin(); it != m->end(); it++, pick++) {
+    memcpy((sslid_service->session + pick)->id, &(it->first), 32);
+    memcpy(&(sslid_service->session + pick)->dest, &(it->second), sizeof(struct l7vs_dest));
+
+  }
+}
+
+
+void CSSLIDMap::rebuild_sessionlist(struct l7vs_sslid_service* sslid_service)
+{
+  int pick;
+  struct ssl_session tmp_session;
+  
+  m->clear();
+  l->clear();
+
+  for (pick = 0; pick < sslid_service->maxlist; pick++) {
+    memset(&tmp_session, 0, sizeof (struct ssl_session));
+    memcpy(&(tmp_session.id), &(sslid_service->session + pick)->id, 32);
+    memcpy(&(tmp_session.dest), &(sslid_service->session + pick)->dest, sizeof(struct l7vs_dest));
+    add(tmp_session.id, tmp_session.dest);
+
+  }
+}