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authorAdam Ierymenko <adam.ierymenko@gmail.com>2015-04-16 16:17:28 -0700
committerAdam Ierymenko <adam.ierymenko@gmail.com>2015-04-16 16:17:28 -0700
commit895c32a0d2e23049d88e3efdf1ae86eeaab7a5a7 (patch)
tree4e55b9cde51dd3b5a17da12b155f33d697b168c5 /attic/SoftwareUpdater.hpp
parent489cc66b78be7af4f9acd352f6309a03c32ba6f2 (diff)
downloadinfinitytier-895c32a0d2e23049d88e3efdf1ae86eeaab7a5a7.tar.gz
infinitytier-895c32a0d2e23049d88e3efdf1ae86eeaab7a5a7.zip
Stash old software updater code, will refactor into separate utility.
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+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015 ZeroTier, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#ifndef ZT_SOFTWAREUPDATER_HPP
+#define ZT_SOFTWAREUPDATER_HPP
+
+#include <stdint.h>
+
+#include <string>
+
+#include "../node/Constants.hpp"
+#include "../node/Mutex.hpp"
+#include "../node/Address.hpp"
+
+#include "HttpClient.hpp"
+
+/**
+ * Delay between fetches of the root topology update URL
+ *
+ * 86400000 = check once every 24 hours (this doesn't change often)
+ */
+#define ZT_UPDATE_ROOT_TOPOLOGY_CHECK_INTERVAL 86400000
+
+/**
+ * Minimum interval between attempts to do a software update
+ */
+#define ZT_UPDATE_MIN_INTERVAL 120000
+
+/**
+ * Maximum interval between checks for new versions
+ */
+#define ZT_UPDATE_MAX_INTERVAL 7200000
+
+/**
+ * Software update HTTP timeout in seconds
+ */
+#define ZT_UPDATE_HTTP_TIMEOUT 120
+
+namespace ZeroTier {
+
+/**
+ * Software updater
+ */
+class SoftwareUpdater
+{
+public:
+ SoftwareUpdater();
+ ~SoftwareUpdater();
+
+ /**
+ * Remove old updates in updates.d
+ */
+ void cleanOldUpdates();
+
+ /**
+ * Called on each version message from a peer
+ *
+ * If a peer has a newer version, that causes an update to be started.
+ *
+ * @param vmaj Peer's major version
+ * @param vmin Peer's minor version
+ * @param rev Peer's revision
+ */
+ void sawRemoteVersion(unsigned int vmaj,unsigned int vmin,unsigned int rev);
+
+ /**
+ * Check for updates now regardless of last check time or version
+ *
+ * This only starts a check if one is not in progress. Otherwise it does
+ * nothing.
+ */
+ void checkNow();
+
+ /**
+ * Check for updates now if it's been longer than ZT_UPDATE_MAX_INTERVAL
+ *
+ * This is called periodically from the main loop.
+ */
+ inline void checkIfMaxIntervalExceeded(uint64_t now)
+ {
+ if ((now - _lastUpdateAttempt) >= ZT_UPDATE_MAX_INTERVAL)
+ checkNow();
+ }
+
+ /**
+ * Pack three-component version into a 64-bit integer
+ *
+ * @param vmaj Major version (0..65535)
+ * @param vmin Minor version (0..65535)
+ * @param rev Revision (0..65535)
+ * @return Version packed into an easily comparable 64-bit integer
+ */
+ static inline uint64_t packVersion(unsigned int vmaj,unsigned int vmin,unsigned int rev)
+ throw()
+ {
+ return ( ((uint64_t)(vmaj & 0xffff) << 32) | ((uint64_t)(vmin & 0xffff) << 16) | (uint64_t)(rev & 0xffff) );
+ }
+
+ /**
+ * Parse NFO data from .nfo file on software update site
+ *
+ * The first argument is the NFO data, and all the remaining arguments are
+ * result parameters to be filled with results. If an error is returned the
+ * results in the parameters should be considered undefined.
+ *
+ * @param nfo NFO data
+ * @param vMajor Result: major version
+ * @param vMinor Result: minor version
+ * @param vRevision Result: revision number
+ * @param signedBy Result: signing identity
+ * @param signature Result: Ed25519 signature data
+ * @param url Result: URL of update binary
+ * @return NULL on success or error message on failure
+ */
+ static const char *parseNfo(
+ const char *nfoText,
+ unsigned int &vMajor,
+ unsigned int &vMinor,
+ unsigned int &vRevision,
+ Address &signedBy,
+ std::string &signature,
+ std::string &url);
+
+ /**
+ * Validate an update once downloaded
+ *
+ * This obtains the identity corresponding to the address from the compiled-in
+ * list of valid signing identities.
+ *
+ * @param data Update data
+ * @param len Length of update data
+ * @param signedBy Signing authority address
+ * @param signature Signing authority signature
+ * @return True on validation success, false if rejected
+ */
+ static bool validateUpdate(
+ const void *data,
+ unsigned int len,
+ const Address &signedBy,
+ const std::string &signature);
+
+private:
+ static void _cbHandleGetLatestVersionInfo(void *arg,int code,const std::string &url,const std::string &body);
+ static void _cbHandleGetLatestVersionBinary(void *arg,int code,const std::string &url,const std::string &body);
+
+ HttpClient httpClient;
+ const uint64_t _myVersion;
+ volatile uint64_t _lastUpdateAttempt;
+ volatile enum {
+ UPDATE_STATUS_IDLE,
+ UPDATE_STATUS_GETTING_NFO,
+ UPDATE_STATUS_GETTING_FILE
+ } _status;
+ volatile bool _die;
+ Address _signedBy;
+ std::string _signature;
+ Mutex _lock;
+};
+
+} // namespace ZeroTier
+
+#endif