From 3cd01b932e1c85394272ae64fae67ebeda92fb00 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 13 Apr 2024 23:11:59 +0200 Subject: Adding upstream version 1.8.3. Signed-off-by: Daniel Baumann --- dnsdist-session-cache.hh | 80 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 dnsdist-session-cache.hh (limited to 'dnsdist-session-cache.hh') diff --git a/dnsdist-session-cache.hh b/dnsdist-session-cache.hh new file mode 100644 index 0000000..1881fb1 --- /dev/null +++ b/dnsdist-session-cache.hh @@ -0,0 +1,80 @@ +/* + * This file is part of PowerDNS or dnsdist. + * Copyright -- PowerDNS.COM B.V. and its contributors + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * In addition, for the avoidance of any doubt, permission is granted to + * link this program with OpenSSL and to (re)distribute the binaries + * produced as the result of such linking. + * + * 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ +#pragma once + +#include +#include + +#include "lock.hh" +#include "tcpiohandler.hh" +#include "uuid-utils.hh" + +class TLSSessionCache +{ +public: + TLSSessionCache() + { + } + + void putSessions(const boost::uuids::uuid& backendID, time_t now, std::vector>&& sessions); + std::unique_ptr getSession(const boost::uuids::uuid& backendID, time_t now); + + static void setCleanupDelay(time_t delay) + { + s_cleanupDelay = delay; + } + + static void setSessionValidity(time_t validity) + { + s_sessionValidity = validity; + } + + static void setMaxTicketsPerBackend(uint16_t max) + { + s_maxSessionsPerBackend = max; + } + + size_t getSize(); + +private: + static time_t s_cleanupDelay; + static time_t s_sessionValidity; + static uint16_t s_maxSessionsPerBackend; + + struct BackendEntry + { + std::deque> d_sessions; + time_t d_lastUsed{0}; + }; + + struct CacheData + { + // do we need to shard this? + std::map d_sessions; + time_t d_nextCleanup{0}; + }; + LockGuarded d_data; + + void cleanup(time_t now, LockGuardedHolder& data); +}; + +extern TLSSessionCache g_sessionCache; -- cgit v1.2.3