Re-integrate in-filesystem DB into new controller DB structure.
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11 changed files with 654 additions and 362 deletions
129
controller/FileDB.cpp
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129
controller/FileDB.cpp
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/*
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* ZeroTier One - Network Virtualization Everywhere
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* Copyright (C) 2011-2015 ZeroTier, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "FileDB.hpp"
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namespace ZeroTier
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{
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FileDB::FileDB(EmbeddedNetworkController *const nc,const Address &myAddress,const char *path) :
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DB(nc,myAddress,path),
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_networksPath(_path + ZT_PATH_SEPARATOR_S + "network")
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{
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OSUtils::mkdir(_path.c_str());
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OSUtils::lockDownFile(_path.c_str(),true);
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std::vector<std::string> networks(OSUtils::listDirectory(_networksPath.c_str(),false));
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std::string buf;
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for(auto n=networks.begin();n!=networks.end();++n) {
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buf.clear();
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if ((n->length() == 21)&&(OSUtils::readFile((_networksPath + ZT_PATH_SEPARATOR_S + *n).c_str(),buf))) {
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try {
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nlohmann::json network(OSUtils::jsonParse(buf));
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const std::string nwids = network["id"];
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if (nwids.length() == 16) {
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nlohmann::json nullJson;
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_networkChanged(nullJson,network,false);
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std::string membersPath(_networksPath + ZT_PATH_SEPARATOR_S + nwids + ZT_PATH_SEPARATOR_S "member");
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std::vector<std::string> members(OSUtils::listDirectory(membersPath.c_str(),false));
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for(auto m=members.begin();m!=members.end();++m) {
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buf.clear();
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if ((m->length() == 15)&&(OSUtils::readFile((membersPath + ZT_PATH_SEPARATOR_S + *m).c_str(),buf))) {
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try {
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nlohmann::json member(OSUtils::jsonParse(buf));
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const std::string addrs = member["id"];
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if (addrs.length() == 10) {
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nlohmann::json nullJson2;
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_memberChanged(nullJson2,member,false);
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}
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} catch ( ... ) {}
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}
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}
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}
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} catch ( ... ) {}
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}
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}
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}
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FileDB::~FileDB()
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{
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}
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bool FileDB::waitForReady()
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{
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return true;
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}
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void FileDB::save(const nlohmann::json &record)
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{
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char p1[16384],p2[16384];
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try {
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nlohmann::json rec(record);
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const std::string objtype = rec["objtype"];
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if (objtype == "network") {
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const uint64_t nwid = OSUtils::jsonIntHex(rec["id"],0ULL);
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if (nwid) {
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nlohmann::json old;
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get(nwid,old);
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OSUtils::ztsnprintf(p1,sizeof(p1),"%s" ZT_PATH_SEPARATOR_S "%.16llx.json.new",_networksPath.c_str(),nwid);
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OSUtils::ztsnprintf(p2,sizeof(p2),"%s" ZT_PATH_SEPARATOR_S "%.16llx.json",_networksPath.c_str(),nwid);
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if (!OSUtils::writeFile(p1,OSUtils::jsonDump(rec,-1)))
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fprintf(stderr,"WARNING: controller unable to write to path: %s" ZT_EOL_S,p1);
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OSUtils::rename(p1,p2);
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_networkChanged(old,rec,true);
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}
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} else if (objtype == "member") {
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const uint64_t id = OSUtils::jsonIntHex(rec["id"],0ULL);
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const uint64_t nwid = OSUtils::jsonIntHex(rec["nwid"],0ULL);
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if ((id)&&(nwid)) {
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nlohmann::json network,old;
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get(nwid,network,id,old);
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OSUtils::ztsnprintf(p1,sizeof(p1),"%s" ZT_PATH_SEPARATOR_S "%.16llx" ZT_PATH_SEPARATOR_S "member" ZT_PATH_SEPARATOR_S "%.10llx.json.new",_networksPath.c_str(),nwid);
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OSUtils::ztsnprintf(p2,sizeof(p2),"%s" ZT_PATH_SEPARATOR_S "%.16llx" ZT_PATH_SEPARATOR_S "member" ZT_PATH_SEPARATOR_S "%.10llx.json",_networksPath.c_str(),nwid);
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if (!OSUtils::writeFile(p1,OSUtils::jsonDump(rec,-1)))
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fprintf(stderr,"WARNING: controller unable to write to path: %s" ZT_EOL_S,p1);
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OSUtils::rename(p1,p2);
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_memberChanged(old,rec,true);
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}
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} else if (objtype == "trace") {
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const std::string id = rec["id"];
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OSUtils::ztsnprintf(p1,sizeof(p1),"%s" ZT_PATH_SEPARATOR_S "trace" ZT_PATH_SEPARATOR_S "%s.json",_path.c_str(),id.c_str());
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OSUtils::writeFile(p1,OSUtils::jsonDump(rec,-1));
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}
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} catch ( ... ) {} // drop invalid records missing fields
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}
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void FileDB::eraseNetwork(const uint64_t networkId)
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{
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nlohmann::json network,nullJson;
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get(networkId,network);
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char p[16384];
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OSUtils::ztsnprintf(p,sizeof(p),"%s" ZT_PATH_SEPARATOR_S "%.16llx.json",_networksPath.c_str(),networkId);
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OSUtils::rm(p);
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_networkChanged(network,nullJson,true);
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}
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void FileDB::eraseMember(const uint64_t networkId,const uint64_t memberId)
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{
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}
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} // namespace ZeroTier
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