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ZeroTierOne/controller/PostgreSQL.cpp

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/*
* Copyright (c)2019 ZeroTier, Inc.
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* Change Date: 2023-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#include "PostgreSQL.hpp"
#ifdef ZT_CONTROLLER_USE_LIBPQ
#include "../node/Constants.hpp"
#include "EmbeddedNetworkController.hpp"
#include "../version.h"
#include "Redis.hpp"
#include <libpq-fe.h>
#include <sstream>
#include <climits>
using json = nlohmann::json;
namespace {
static const int DB_MINIMUM_VERSION = 5;
static const char *_timestr()
{
time_t t = time(0);
char *ts = ctime(&t);
char *p = ts;
if (!p)
return "";
while (*p) {
if (*p == '\n') {
*p = (char)0;
break;
}
++p;
}
return ts;
}
/*
std::string join(const std::vector<std::string> &elements, const char * const separator)
{
switch(elements.size()) {
case 0:
return "";
case 1:
return elements[0];
default:
std::ostringstream os;
std::copy(elements.begin(), elements.end()-1, std::ostream_iterator<std::string>(os, separator));
os << *elements.rbegin();
return os.str();
}
}
*/
} // anonymous namespace
using namespace ZeroTier;
using Attrs = std::vector<std::pair<std::string, std::string>>;
using Item = std::pair<std::string, Attrs>;
using ItemStream = std::vector<Item>;
PostgreSQL::PostgreSQL(const Identity &myId, const char *path, int listenPort, RedisConfig *rc)
: DB()
, _myId(myId)
, _myAddress(myId.address())
, _ready(0)
, _connected(1)
, _run(1)
, _waitNoticePrinted(false)
, _listenPort(listenPort)
, _rc(rc)
, _redis(NULL)
, _cluster(NULL)
{
char myAddress[64];
_myAddressStr = myId.address().toString(myAddress);
_connString = std::string(path) + " application_name=controller_" + _myAddressStr;
// Database Schema Version Check
PGconn *conn = getPgConn();
if (PQstatus(conn) != CONNECTION_OK) {
fprintf(stderr, "Bad Database Connection: %s", PQerrorMessage(conn));
exit(1);
}
PGresult *res = PQexec(conn, "SELECT version FROM ztc_database");
if (PQresultStatus(res) != PGRES_TUPLES_OK) {
fprintf(stderr, "Error determining database version");
exit(1);
}
if (PQntuples(res) != 1) {
fprintf(stderr, "Invalid number of db version tuples returned.");
exit(1);
}
int dbVersion = std::stoi(PQgetvalue(res, 0, 0));
if (dbVersion < DB_MINIMUM_VERSION) {
fprintf(stderr, "Central database schema version too low. This controller version requires a minimum schema version of %d. Please upgrade your Central instance", DB_MINIMUM_VERSION);
exit(1);
}
PQclear(res);
res = NULL;
if (_rc != NULL) {
sw::redis::ConnectionOptions opts;
sw::redis::ConnectionPoolOptions poolOpts;
opts.host = _rc->hostname;
opts.port = _rc->port;
opts.password = _rc->password;
opts.db = 0;
poolOpts.size = 10;
if (_rc->clusterMode) {
fprintf(stderr, "Using Redis in Cluster Mode\n");
_cluster = std::make_shared<sw::redis::RedisCluster>(opts, poolOpts);
} else {
fprintf(stderr, "Using Redis in Standalone Mode\n");
_redis = std::make_shared<sw::redis::Redis>(opts, poolOpts);
}
}
_readyLock.lock();
fprintf(stderr, "[%s] NOTICE: %.10llx controller PostgreSQL waiting for initial data download..." ZT_EOL_S, ::_timestr(), (unsigned long long)_myAddress.toInt());
_waitNoticePrinted = true;
initializeNetworks(conn);
initializeMembers(conn);
PQfinish(conn);
conn = NULL;
_heartbeatThread = std::thread(&PostgreSQL::heartbeat, this);
_membersDbWatcher = std::thread(&PostgreSQL::membersDbWatcher, this);
_networksDbWatcher = std::thread(&PostgreSQL::networksDbWatcher, this);
for (int i = 0; i < ZT_CENTRAL_CONTROLLER_COMMIT_THREADS; ++i) {
_commitThread[i] = std::thread(&PostgreSQL::commitThread, this);
}
_onlineNotificationThread = std::thread(&PostgreSQL::onlineNotificationThread, this);
}
PostgreSQL::~PostgreSQL()
{
_run = 0;
std::this_thread::sleep_for(std::chrono::milliseconds(100));
_heartbeatThread.join();
_membersDbWatcher.join();
_networksDbWatcher.join();
_commitQueue.stop();
for (int i = 0; i < ZT_CENTRAL_CONTROLLER_COMMIT_THREADS; ++i) {
_commitThread[i].join();
}
_onlineNotificationThread.join();
}
bool PostgreSQL::waitForReady()
{
while (_ready < 2) {
_readyLock.lock();
_readyLock.unlock();
}
return true;
}
bool PostgreSQL::isReady()
{
return ((_ready == 2)&&(_connected));
}
bool PostgreSQL::save(nlohmann::json &record,bool notifyListeners)
{
bool modified = false;
try {
if (!record.is_object())
return false;
const std::string objtype = record["objtype"];
if (objtype == "network") {
const uint64_t nwid = OSUtils::jsonIntHex(record["id"],0ULL);
if (nwid) {
nlohmann::json old;
get(nwid,old);
if ((!old.is_object())||(!_compareRecords(old,record))) {
record["revision"] = OSUtils::jsonInt(record["revision"],0ULL) + 1ULL;
_commitQueue.post(std::pair<nlohmann::json,bool>(record,notifyListeners));
modified = true;
}
}
} else if (objtype == "member") {
const uint64_t nwid = OSUtils::jsonIntHex(record["nwid"],0ULL);
const uint64_t id = OSUtils::jsonIntHex(record["id"],0ULL);
if ((id)&&(nwid)) {
nlohmann::json network,old;
get(nwid,network,id,old);
if ((!old.is_object())||(!_compareRecords(old,record))) {
record["revision"] = OSUtils::jsonInt(record["revision"],0ULL) + 1ULL;
_commitQueue.post(std::pair<nlohmann::json,bool>(record,notifyListeners));
modified = true;
}
}
}
} catch (std::exception &e) {
fprintf(stderr, "Error on PostgreSQL::save: %s\n", e.what());
} catch (...) {
fprintf(stderr, "Unknown error on PostgreSQL::save\n");
}
return modified;
}
void PostgreSQL::eraseNetwork(const uint64_t networkId)
{
char tmp2[24];
waitForReady();
Utils::hex(networkId, tmp2);
std::pair<nlohmann::json,bool> tmp;
tmp.first["id"] = tmp2;
tmp.first["objtype"] = "_delete_network";
tmp.second = true;
_commitQueue.post(tmp);
nlohmann::json nullJson;
_networkChanged(tmp.first, nullJson, true);
}
void PostgreSQL::eraseMember(const uint64_t networkId, const uint64_t memberId)
{
char tmp2[24];
waitForReady();
std::pair<nlohmann::json,bool> tmp, nw;
Utils::hex(networkId, tmp2);
tmp.first["nwid"] = tmp2;
Utils::hex(memberId, tmp2);
tmp.first["id"] = tmp2;
tmp.first["objtype"] = "_delete_member";
tmp.second = true;
_commitQueue.post(tmp);
nlohmann::json nullJson;
_memberChanged(tmp.first, nullJson, true);
}
void PostgreSQL::nodeIsOnline(const uint64_t networkId, const uint64_t memberId, const InetAddress &physicalAddress)
{
std::lock_guard<std::mutex> l(_lastOnline_l);
std::pair<int64_t, InetAddress> &i = _lastOnline[std::pair<uint64_t,uint64_t>(networkId, memberId)];
i.first = OSUtils::now();
if (physicalAddress) {
i.second = physicalAddress;
}
}
void PostgreSQL::initializeNetworks(PGconn *conn)
{
try {
if (PQstatus(conn) != CONNECTION_OK) {
fprintf(stderr, "Bad Database Connection: %s", PQerrorMessage(conn));
exit(1);
}
std::string setKey = "networks:{" + _myAddressStr + "}";
if (_rc != NULL) {
try {
if (_rc->clusterMode) {
_cluster->del(setKey);
} else {
_redis->del(setKey);
}
} catch (sw::redis::Error &e) {
// del can throw an error if the key doesn't exist
// swallow it and move along
}
}
std::unordered_set<std::string> networkSet;
const char *params[1] = {
_myAddressStr.c_str()
};
fprintf(stderr, "Initializing Networks...\n");
PGresult *res = PQexecParams(conn, "SELECT id, EXTRACT(EPOCH FROM creation_time AT TIME ZONE 'UTC')*1000, capabilities, "
"enable_broadcast, EXTRACT(EPOCH FROM last_modified AT TIME ZONE 'UTC')*1000, mtu, multicast_limit, name, private, remote_trace_level, "
"remote_trace_target, revision, rules, tags, v4_assign_mode, v6_assign_mode FROM ztc_network "
"WHERE deleted = false AND controller_id = $1",
1,
NULL,
params,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_TUPLES_OK) {
fprintf(stderr, "Networks Initialization Failed: %s", PQerrorMessage(conn));
PQclear(res);
exit(1);
}
int numRows = PQntuples(res);
for (int i = 0; i < numRows; ++i) {
json empty;
json config;
const char *nwidparam[1] = {
PQgetvalue(res, i, 0)
};
std::string nwid = PQgetvalue(res, i, 0);
networkSet.insert(nwid);
config["id"] = nwid;
config["nwid"] = nwid;
try {
config["creationTime"] = std::stoull(PQgetvalue(res, i, 1));
} catch (std::exception &e) {
config["creationTime"] = 0ULL;
//fprintf(stderr, "Error converting creation time: %s\n", PQgetvalue(res, i, 1));
}
config["capabilities"] = json::parse(PQgetvalue(res, i, 2));
config["enableBroadcast"] = (strcmp(PQgetvalue(res, i, 3),"t")==0);
try {
config["lastModified"] = std::stoull(PQgetvalue(res, i, 4));
} catch (std::exception &e) {
config["lastModified"] = 0ULL;
//fprintf(stderr, "Error converting last modified: %s\n", PQgetvalue(res, i, 4));
}
try {
config["mtu"] = std::stoi(PQgetvalue(res, i, 5));
} catch (std::exception &e) {
config["mtu"] = 2800;
}
try {
config["multicastLimit"] = std::stoi(PQgetvalue(res, i, 6));
} catch (std::exception &e) {
config["multicastLimit"] = 64;
}
config["name"] = PQgetvalue(res, i, 7);
config["private"] = (strcmp(PQgetvalue(res, i, 8),"t")==0);
try {
config["remoteTraceLevel"] = std::stoi(PQgetvalue(res, i, 9));
} catch (std::exception &e) {
config["remoteTraceLevel"] = 0;
}
config["remoteTraceTarget"] = PQgetvalue(res, i, 10);
try {
config["revision"] = std::stoull(PQgetvalue(res, i, 11));
} catch (std::exception &e) {
config["revision"] = 0ULL;
//fprintf(stderr, "Error converting revision: %s\n", PQgetvalue(res, i, 11));
}
config["rules"] = json::parse(PQgetvalue(res, i, 12));
config["tags"] = json::parse(PQgetvalue(res, i, 13));
config["v4AssignMode"] = json::parse(PQgetvalue(res, i, 14));
config["v6AssignMode"] = json::parse(PQgetvalue(res, i, 15));
config["objtype"] = "network";
config["ipAssignmentPools"] = json::array();
config["routes"] = json::array();
PGresult *r2 = PQexecParams(conn,
"SELECT host(ip_range_start), host(ip_range_end) FROM ztc_network_assignment_pool WHERE network_id = $1",
1,
NULL,
nwidparam,
NULL,
NULL,
0);
if (PQresultStatus(r2) != PGRES_TUPLES_OK) {
fprintf(stderr, "ERROR: Error retreiving IP pools for network: %s\n", PQresultErrorMessage(r2));
PQclear(r2);
PQclear(res);
exit(1);
}
int n = PQntuples(r2);
for (int j = 0; j < n; ++j) {
json ip;
ip["ipRangeStart"] = PQgetvalue(r2, j, 0);
ip["ipRangeEnd"] = PQgetvalue(r2, j, 1);
config["ipAssignmentPools"].push_back(ip);
}
PQclear(r2);
r2 = PQexecParams(conn,
"SELECT host(address), bits, host(via) FROM ztc_network_route WHERE network_id = $1",
1,
NULL,
nwidparam,
NULL,
NULL,
0);
if (PQresultStatus(r2) != PGRES_TUPLES_OK) {
fprintf(stderr, "ERROR: Error retreiving routes for network: %s\n", PQresultErrorMessage(r2));
PQclear(r2);
PQclear(res);
exit(1);
}
n = PQntuples(r2);
for (int j = 0; j < n; ++j) {
std::string addr = PQgetvalue(r2, j, 0);
std::string bits = PQgetvalue(r2, j, 1);
std::string via = PQgetvalue(r2, j, 2);
json route;
route["target"] = addr + "/" + bits;
if (via == "NULL") {
route["via"] = nullptr;
} else {
route["via"] = via;
}
config["routes"].push_back(route);
}
r2 = PQexecParams(conn,
"SELECT domain, servers FROM ztc_network_dns WHERE network_id = $1",
1,
NULL,
nwidparam,
NULL,
NULL,
0);
if (PQresultStatus(r2) != PGRES_TUPLES_OK) {
fprintf(stderr, "ERROR: Error retrieving DNS settings for network: %s\n", PQresultErrorMessage(r2));
PQclear(r2);
PQclear(res);
exit(1);
}
n = PQntuples(r2);
config["dns"] = json::array();
for (int j = 0; j < n; ++j) {
json obj;
std::string domain = PQgetvalue(r2, j, 0);
std::string serverList = PQgetvalue(r2, j, 1);
auto servers = json::array();
if (serverList.rfind("{",0) != std::string::npos) {
serverList = serverList.substr(1, serverList.size()-2);
fprintf(stderr, "Server List: %s\n", serverList.c_str());
std::stringstream ss(serverList);
while(ss.good()) {
std::string server;
std::getline(ss, server, ',');
servers.push_back(server);
}
}
obj["domain"] = domain;
obj["servers"] = servers;
config["dns"].push_back(obj);
}
fprintf(stderr, "%s\n", OSUtils::jsonDump(config["dns"], 2).c_str());
PQclear(r2);
_networkChanged(empty, config, false);
}
PQclear(res);
if(!networkSet.empty()) {
if (_rc && _rc->clusterMode) {
auto tx = _cluster->transaction(_myAddressStr, true);
tx.sadd(setKey, networkSet.begin(), networkSet.end());
tx.exec();
} else if (_rc && !_rc->clusterMode) {
auto tx = _redis->transaction(true);
tx.sadd(setKey, networkSet.begin(), networkSet.end());
tx.exec();
}
}
if (++this->_ready == 2) {
if (_waitNoticePrinted) {
fprintf(stderr,"[%s] NOTICE: %.10llx controller PostgreSQL data download complete." ZT_EOL_S,_timestr(),(unsigned long long)_myAddress.toInt());
}
_readyLock.unlock();
}
} catch (sw::redis::Error &e) {
fprintf(stderr, "ERROR: Error initializing networks in Redis: %s\n", e.what());
exit(-1);
} catch (std::exception &e) {
fprintf(stderr, "ERROR: Error initializing networks: %s\n", e.what());
exit(-1);
}
}
void PostgreSQL::initializeMembers(PGconn *conn)
{
try {
if (PQstatus(conn) != CONNECTION_OK) {
fprintf(stderr, "Bad Database Connection: %s", PQerrorMessage(conn));
exit(1);
}
std::string setKeyBase = "network-nodes-all:{" + _myAddressStr + "}:";
if (_rc != NULL) {
std::lock_guard<std::mutex> l(_networks_l);
std::unordered_set<std::string> deletes;
for ( auto it : _networks) {
uint64_t nwid_i = it.first;
char nwidTmp[64] = {0};
OSUtils::ztsnprintf(nwidTmp, sizeof(nwidTmp), "%.16llx", nwid_i);
std::string nwid(nwidTmp);
std::string key = setKeyBase + nwid;
deletes.insert(key);
}
if (!deletes.empty()) {
if (_rc->clusterMode) {
auto tx = _cluster->transaction(_myAddressStr, true);
for (std::string k : deletes) {
tx.del(k);
}
tx.exec();
} else {
auto tx = _redis->transaction(true);
for (std::string k : deletes) {
tx.del(k);
}
tx.exec();
}
}
}
const char *params[1] = {
_myAddressStr.c_str()
};
std::unordered_map<std::string, std::string> networkMembers;
fprintf(stderr, "Initializing Members...\n");
PGresult *res = PQexecParams(conn,
"SELECT m.id, m.network_id, m.active_bridge, m.authorized, m.capabilities, EXTRACT(EPOCH FROM m.creation_time AT TIME ZONE 'UTC')*1000, m.identity, "
" EXTRACT(EPOCH FROM m.last_authorized_time AT TIME ZONE 'UTC')*1000, "
" EXTRACT(EPOCH FROM m.last_deauthorized_time AT TIME ZONE 'UTC')*1000, "
" m.remote_trace_level, m.remote_trace_target, m.tags, m.v_major, m.v_minor, m.v_rev, m.v_proto, "
" m.no_auto_assign_ips, m.revision "
"FROM ztc_member m "
"INNER JOIN ztc_network n "
" ON n.id = m.network_id "
"WHERE n.controller_id = $1 AND m.deleted = false",
1,
NULL,
params,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_TUPLES_OK) {
fprintf(stderr, "Member Initialization Failed: %s", PQerrorMessage(conn));
PQclear(res);
exit(1);
}
int numRows = PQntuples(res);
for (int i = 0; i < numRows; ++i) {
json empty;
json config;
std::string memberId(PQgetvalue(res, i, 0));
std::string networkId(PQgetvalue(res, i, 1));
networkMembers.insert(std::pair<std::string, std::string>(setKeyBase+networkId, memberId));
std::string ctime = PQgetvalue(res, i, 5);
config["id"] = memberId;
config["nwid"] = networkId;
config["activeBridge"] = (strcmp(PQgetvalue(res, i, 2), "t") == 0);
config["authorized"] = (strcmp(PQgetvalue(res, i, 3), "t") == 0);
try {
config["capabilities"] = json::parse(PQgetvalue(res, i, 4));
} catch (std::exception &e) {
config["capabilities"] = json::array();
}
try {
config["creationTime"] = std::stoull(PQgetvalue(res, i, 5));
} catch (std::exception &e) {
config["creationTime"] = 0ULL;
//fprintf(stderr, "Error upding creation time (member): %s\n", PQgetvalue(res, i, 5));
}
config["identity"] = PQgetvalue(res, i, 6);
try {
config["lastAuthorizedTime"] = std::stoull(PQgetvalue(res, i, 7));
} catch(std::exception &e) {
config["lastAuthorizedTime"] = 0ULL;
//fprintf(stderr, "Error updating last auth time (member): %s\n", PQgetvalue(res, i, 7));
}
try {
config["lastDeauthorizedTime"] = std::stoull(PQgetvalue(res, i, 8));
} catch( std::exception &e) {
config["lastDeauthorizedTime"] = 0ULL;
//fprintf(stderr, "Error updating last deauth time (member): %s\n", PQgetvalue(res, i, 8));
}
try {
config["remoteTraceLevel"] = std::stoi(PQgetvalue(res, i, 9));
} catch (std::exception &e) {
config["remoteTraceLevel"] = 0;
}
config["remoteTraceTarget"] = PQgetvalue(res, i, 10);
try {
config["tags"] = json::parse(PQgetvalue(res, i, 11));
} catch (std::exception &e) {
config["tags"] = json::array();
}
try {
config["vMajor"] = std::stoi(PQgetvalue(res, i, 12));
} catch(std::exception &e) {
config["vMajor"] = -1;
}
try {
config["vMinor"] = std::stoi(PQgetvalue(res, i, 13));
} catch (std::exception &e) {
config["vMinor"] = -1;
}
try {
config["vRev"] = std::stoi(PQgetvalue(res, i, 14));
} catch (std::exception &e) {
config["vRev"] = -1;
}
try {
config["vProto"] = std::stoi(PQgetvalue(res, i, 15));
} catch (std::exception &e) {
config["vProto"] = -1;
}
config["noAutoAssignIps"] = (strcmp(PQgetvalue(res, i, 16), "t") == 0);
try {
config["revision"] = std::stoull(PQgetvalue(res, i, 17));
} catch (std::exception &e) {
config["revision"] = 0ULL;
//fprintf(stderr, "Error updating revision (member): %s\n", PQgetvalue(res, i, 17));
}
config["objtype"] = "member";
config["ipAssignments"] = json::array();
const char *p2[2] = {
memberId.c_str(),
networkId.c_str()
};
PGresult *r2 = PQexecParams(conn,
"SELECT DISTINCT address FROM ztc_member_ip_assignment WHERE member_id = $1 AND network_id = $2",
2,
NULL,
p2,
NULL,
NULL,
0);
if (PQresultStatus(r2) != PGRES_TUPLES_OK) {
fprintf(stderr, "Member Initialization Failed: %s", PQerrorMessage(conn));
PQclear(r2);
PQclear(res);
exit(1);
}
int n = PQntuples(r2);
for (int j = 0; j < n; ++j) {
std::string ipaddr = PQgetvalue(r2, j, 0);
std::size_t pos = ipaddr.find('/');
if (pos != std::string::npos) {
ipaddr = ipaddr.substr(0, pos);
}
config["ipAssignments"].push_back(ipaddr);
}
_memberChanged(empty, config, false);
}
PQclear(res);
if (!networkMembers.empty()) {
if (_rc != NULL) {
if (_rc->clusterMode) {
auto tx = _cluster->transaction(_myAddressStr, true);
for (auto it : networkMembers) {
tx.sadd(it.first, it.second);
}
tx.exec();
} else {
auto tx = _redis->transaction(true);
for (auto it : networkMembers) {
tx.sadd(it.first, it.second);
}
tx.exec();
}
}
}
if (++this->_ready == 2) {
if (_waitNoticePrinted) {
fprintf(stderr,"[%s] NOTICE: %.10llx controller PostgreSQL data download complete." ZT_EOL_S,_timestr(),(unsigned long long)_myAddress.toInt());
}
_readyLock.unlock();
}
} catch (sw::redis::Error &e) {
fprintf(stderr, "ERROR: Error initializing members (redis): %s\n", e.what());
} catch (std::exception &e) {
fprintf(stderr, "ERROR: Error initializing members: %s\n", e.what());
exit(-1);
}
}
void PostgreSQL::heartbeat()
{
char publicId[1024];
char hostnameTmp[1024];
_myId.toString(false,publicId);
if (gethostname(hostnameTmp, sizeof(hostnameTmp))!= 0) {
hostnameTmp[0] = (char)0;
} else {
for (int i = 0; i < (int)sizeof(hostnameTmp); ++i) {
if ((hostnameTmp[i] == '.')||(hostnameTmp[i] == 0)) {
hostnameTmp[i] = (char)0;
break;
}
}
}
const char *controllerId = _myAddressStr.c_str();
const char *publicIdentity = publicId;
const char *hostname = hostnameTmp;
PGconn *conn = getPgConn();
if (PQstatus(conn) == CONNECTION_BAD) {
fprintf(stderr, "Connection to database failed: %s\n", PQerrorMessage(conn));
PQfinish(conn);
exit(1);
}
while (_run == 1) {
if(PQstatus(conn) != CONNECTION_OK) {
fprintf(stderr, "%s heartbeat thread lost connection to Database\n", _myAddressStr.c_str());
PQfinish(conn);
exit(6);
}
int64_t ts = OSUtils::now();
if (conn) {
std::string major = std::to_string(ZEROTIER_ONE_VERSION_MAJOR);
std::string minor = std::to_string(ZEROTIER_ONE_VERSION_MINOR);
std::string rev = std::to_string(ZEROTIER_ONE_VERSION_REVISION);
std::string build = std::to_string(ZEROTIER_ONE_VERSION_BUILD);
std::string now = std::to_string(ts);
std::string host_port = std::to_string(_listenPort);
std::string use_redis = (_rc != NULL) ? "true" : "false";
const char *values[10] = {
controllerId,
hostname,
now.c_str(),
publicIdentity,
major.c_str(),
minor.c_str(),
rev.c_str(),
build.c_str(),
host_port.c_str(),
use_redis.c_str()
};
PGresult *res = PQexecParams(conn,
"INSERT INTO ztc_controller (id, cluster_host, last_alive, public_identity, v_major, v_minor, v_rev, v_build, host_port, use_redis) "
"VALUES ($1, $2, TO_TIMESTAMP($3::double precision/1000), $4, $5, $6, $7, $8, $9, $10) "
"ON CONFLICT (id) DO UPDATE SET cluster_host = EXCLUDED.cluster_host, last_alive = EXCLUDED.last_alive, "
"public_identity = EXCLUDED.public_identity, v_major = EXCLUDED.v_major, v_minor = EXCLUDED.v_minor, "
"v_rev = EXCLUDED.v_rev, v_build = EXCLUDED.v_rev, host_port = EXCLUDED.host_port, "
"use_redis = EXCLUDED.use_redis",
10, // number of parameters
NULL, // oid field. ignore
values, // values for substitution
NULL, // lengths in bytes of each value
NULL, // binary?
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "Heartbeat Update Failed: %s\n", PQresultErrorMessage(res));
}
PQclear(res);
}
if (_rc != NULL) {
if (_rc->clusterMode) {
_cluster->zadd("controllers", controllerId, ts);
} else {
_redis->zadd("controllers", controllerId, ts);
}
}
std::this_thread::sleep_for(std::chrono::milliseconds(1000));
}
PQfinish(conn);
conn = NULL;
fprintf(stderr, "Exited heartbeat thread\n");
}
void PostgreSQL::membersDbWatcher()
{
PGconn *conn = getPgConn(NO_OVERRIDE);
if (PQstatus(conn) == CONNECTION_BAD) {
fprintf(stderr, "Connection to database failed: %s\n", PQerrorMessage(conn));
PQfinish(conn);
exit(1);
}
if (_rc) {
PQfinish(conn);
conn = NULL;
_membersWatcher_Redis();
} else {
_membersWatcher_Postgres(conn);
PQfinish(conn);
conn = NULL;
}
if (_run == 1) {
fprintf(stderr, "ERROR: %s membersDbWatcher should still be running! Exiting Controller.\n", _myAddressStr.c_str());
exit(9);
}
fprintf(stderr, "Exited membersDbWatcher\n");
}
void PostgreSQL::_membersWatcher_Postgres(PGconn *conn) {
char buf[11] = {0};
std::string cmd = "LISTEN member_" + std::string(_myAddress.toString(buf));
PGresult *res = PQexec(conn, cmd.c_str());
if (!res || PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "LISTEN command failed: %s\n", PQresultErrorMessage(res));
PQclear(res);
PQfinish(conn);
exit(1);
}
PQclear(res); res = NULL;
while(_run == 1) {
if (PQstatus(conn) != CONNECTION_OK) {
fprintf(stderr, "ERROR: Member Watcher lost connection to Postgres.");
exit(-1);
}
PGnotify *notify = NULL;
PQconsumeInput(conn);
while ((notify = PQnotifies(conn)) != NULL) {
//fprintf(stderr, "ASYNC NOTIFY of '%s' id:%s received\n", notify->relname, notify->extra);
try {
json tmp(json::parse(notify->extra));
json &ov = tmp["old_val"];
json &nv = tmp["new_val"];
json oldConfig, newConfig;
if (ov.is_object()) oldConfig = ov;
if (nv.is_object()) newConfig = nv;
if (oldConfig.is_object() || newConfig.is_object()) {
_memberChanged(oldConfig,newConfig,(this->_ready>=2));
}
} catch (...) {} // ignore bad records
free(notify);
}
std::this_thread::sleep_for(std::chrono::milliseconds(10));
}
}
void PostgreSQL::_membersWatcher_Redis() {
char buf[11] = {0};
std::string key = "member-stream:{" + std::string(_myAddress.toString(buf)) + "}";
while (_run == 1) {
try {
json tmp;
std::unordered_map<std::string, ItemStream> result;
if (_rc->clusterMode) {
_cluster->xread(key, "$", std::chrono::seconds(1), 0, std::inserter(result, result.end()));
} else {
_redis->xread(key, "$", std::chrono::seconds(1), 0, std::inserter(result, result.end()));
}
if (!result.empty()) {
for (auto element : result) {
#ifdef ZT_TRACE
fprintf(stdout, "Received notification from: %s\n", element.first.c_str());
#endif
for (auto rec : element.second) {
std::string id = rec.first;
auto attrs = rec.second;
#ifdef ZT_TRACE
fprintf(stdout, "Record ID: %s\n", id.c_str());
fprintf(stdout, "attrs len: %lu\n", attrs.size());
#endif
for (auto a : attrs) {
#ifdef ZT_TRACE
fprintf(stdout, "key: %s\nvalue: %s\n", a.first.c_str(), a.second.c_str());
#endif
try {
tmp = json::parse(a.second);
json &ov = tmp["old_val"];
json &nv = tmp["new_val"];
json oldConfig, newConfig;
if (ov.is_object()) oldConfig = ov;
if (nv.is_object()) newConfig = nv;
if (oldConfig.is_object()||newConfig.is_object()) {
_memberChanged(oldConfig,newConfig,(this->_ready >= 2));
}
} catch (...) {
fprintf(stderr, "json parse error in networkWatcher_Redis\n");
}
}
if (_rc->clusterMode) {
_cluster->xdel(key, id);
} else {
_redis->xdel(key, id);
}
}
}
}
} catch (sw::redis::Error &e) {
fprintf(stderr, "Error in Redis members watcher: %s\n", e.what());
}
}
fprintf(stderr, "membersWatcher ended\n");
}
void PostgreSQL::networksDbWatcher()
{
PGconn *conn = getPgConn(NO_OVERRIDE);
if (PQstatus(conn) == CONNECTION_BAD) {
fprintf(stderr, "Connection to database failed: %s\n", PQerrorMessage(conn));
PQfinish(conn);
exit(1);
}
if (_rc) {
PQfinish(conn);
conn = NULL;
_networksWatcher_Redis();
} else {
_networksWatcher_Postgres(conn);
PQfinish(conn);
conn = NULL;
}
if (_run == 1) {
fprintf(stderr, "ERROR: %s networksDbWatcher should still be running! Exiting Controller.\n", _myAddressStr.c_str());
exit(8);
}
fprintf(stderr, "Exited networksDbWatcher\n");
}
void PostgreSQL::_networksWatcher_Postgres(PGconn *conn) {
char buf[11] = {0};
std::string cmd = "LISTEN network_" + std::string(_myAddress.toString(buf));
PGresult *res = PQexec(conn, cmd.c_str());
if (!res || PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "LISTEN command failed: %s\n", PQresultErrorMessage(res));
PQclear(res);
PQfinish(conn);
exit(1);
}
PQclear(res); res = NULL;
while(_run == 1) {
if (PQstatus(conn) != CONNECTION_OK) {
fprintf(stderr, "ERROR: Network Watcher lost connection to Postgres.");
exit(-1);
}
PGnotify *notify = NULL;
PQconsumeInput(conn);
while ((notify = PQnotifies(conn)) != NULL) {
//fprintf(stderr, "ASYNC NOTIFY of '%s' id:%s received\n", notify->relname, notify->extra);
try {
json tmp(json::parse(notify->extra));
json &ov = tmp["old_val"];
json &nv = tmp["new_val"];
json oldConfig, newConfig;
if (ov.is_object()) oldConfig = ov;
if (nv.is_object()) newConfig = nv;
if (oldConfig.is_object()||newConfig.is_object()) {
_networkChanged(oldConfig,newConfig,(this->_ready >= 2));
}
} catch (...) {} // ignore bad records
free(notify);
}
std::this_thread::sleep_for(std::chrono::milliseconds(10));
}
}
void PostgreSQL::_networksWatcher_Redis() {
char buf[11] = {0};
std::string key = "network-stream:{" + std::string(_myAddress.toString(buf)) + "}";
while (_run == 1) {
try {
json tmp;
std::unordered_map<std::string, ItemStream> result;
if (_rc->clusterMode) {
_cluster->xread(key, "$", std::chrono::seconds(1), 0, std::inserter(result, result.end()));
} else {
_redis->xread(key, "$", std::chrono::seconds(1), 0, std::inserter(result, result.end()));
}
if (!result.empty()) {
for (auto element : result) {
#ifdef ZT_TRACE
fprintf(stdout, "Received notification from: %s\n", element.first.c_str());
#endif
for (auto rec : element.second) {
std::string id = rec.first;
auto attrs = rec.second;
#ifdef ZT_TRACE
fprintf(stdout, "Record ID: %s\n", id.c_str());
fprintf(stdout, "attrs len: %lu\n", attrs.size());
#endif
for (auto a : attrs) {
#ifdef ZT_TRACE
fprintf(stdout, "key: %s\nvalue: %s\n", a.first.c_str(), a.second.c_str());
#endif
try {
tmp = json::parse(a.second);
json &ov = tmp["old_val"];
json &nv = tmp["new_val"];
json oldConfig, newConfig;
if (ov.is_object()) oldConfig = ov;
if (nv.is_object()) newConfig = nv;
if (oldConfig.is_object()||newConfig.is_object()) {
_networkChanged(oldConfig,newConfig,(this->_ready >= 2));
}
} catch (...) {
fprintf(stderr, "json parse error in networkWatcher_Redis\n");
}
}
if (_rc->clusterMode) {
_cluster->xdel(key, id);
} else {
_redis->xdel(key, id);
}
}
}
}
} catch (sw::redis::Error &e) {
fprintf(stderr, "Error in Redis networks watcher: %s\n", e.what());
}
}
fprintf(stderr, "networksWatcher ended\n");
}
void PostgreSQL::commitThread()
{
PGconn *conn = getPgConn();
if (PQstatus(conn) == CONNECTION_BAD) {
fprintf(stderr, "ERROR: Connection to database failed: %s\n", PQerrorMessage(conn));
PQfinish(conn);
exit(1);
}
std::pair<nlohmann::json,bool> qitem;
while(_commitQueue.get(qitem)&(_run == 1)) {
if (!qitem.first.is_object()) {
continue;
}
if (PQstatus(conn) == CONNECTION_BAD) {
fprintf(stderr, "ERROR: Connection to database failed: %s\n", PQerrorMessage(conn));
PQfinish(conn);
exit(1);
}
try {
nlohmann::json *config = &(qitem.first);
const std::string objtype = (*config)["objtype"];
if (objtype == "member") {
try {
std::string memberId = (*config)["id"];
std::string networkId = (*config)["nwid"];
std::string identity = (*config)["identity"];
std::string target = "NULL";
if (!(*config)["remoteTraceTarget"].is_null()) {
target = (*config)["remoteTraceTarget"];
}
std::string caps = OSUtils::jsonDump((*config)["capabilities"], -1);
std::string lastAuthTime = std::to_string((long long)(*config)["lastAuthorizedTime"]);
std::string lastDeauthTime = std::to_string((long long)(*config)["lastDeauthorizedTime"]);
std::string rtraceLevel = std::to_string((int)(*config)["remoteTraceLevel"]);
std::string rev = std::to_string((unsigned long long)(*config)["revision"]);
std::string tags = OSUtils::jsonDump((*config)["tags"], -1);
std::string vmajor = std::to_string((int)(*config)["vMajor"]);
std::string vminor = std::to_string((int)(*config)["vMinor"]);
std::string vrev = std::to_string((int)(*config)["vRev"]);
std::string vproto = std::to_string((int)(*config)["vProto"]);
const char *values[19] = {
memberId.c_str(),
networkId.c_str(),
((*config)["activeBridge"] ? "true" : "false"),
((*config)["authorized"] ? "true" : "false"),
caps.c_str(),
identity.c_str(),
lastAuthTime.c_str(),
lastDeauthTime.c_str(),
((*config)["noAutoAssignIps"] ? "true" : "false"),
rtraceLevel.c_str(),
(target == "NULL") ? NULL : target.c_str(),
rev.c_str(),
tags.c_str(),
vmajor.c_str(),
vminor.c_str(),
vrev.c_str(),
vproto.c_str()
};
PGresult *res = PQexecParams(conn,
"INSERT INTO ztc_member (id, network_id, active_bridge, authorized, capabilities, "
"identity, last_authorized_time, last_deauthorized_time, no_auto_assign_ips, "
"remote_trace_level, remote_trace_target, revision, tags, v_major, v_minor, v_rev, v_proto) "
"VALUES ($1, $2, $3, $4, $5, $6, "
"TO_TIMESTAMP($7::double precision/1000), TO_TIMESTAMP($8::double precision/1000), "
"$9, $10, $11, $12, $13, $14, $15, $16, $17) ON CONFLICT (network_id, id) DO UPDATE SET "
"active_bridge = EXCLUDED.active_bridge, authorized = EXCLUDED.authorized, capabilities = EXCLUDED.capabilities, "
"identity = EXCLUDED.identity, last_authorized_time = EXCLUDED.last_authorized_time, "
"last_deauthorized_time = EXCLUDED.last_deauthorized_time, no_auto_assign_ips = EXCLUDED.no_auto_assign_ips, "
"remote_trace_level = EXCLUDED.remote_trace_level, remote_trace_target = EXCLUDED.remote_trace_target, "
"revision = EXCLUDED.revision+1, tags = EXCLUDED.tags, v_major = EXCLUDED.v_major, "
"v_minor = EXCLUDED.v_minor, v_rev = EXCLUDED.v_rev, v_proto = EXCLUDED.v_proto",
17,
NULL,
values,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error updating member: %s\n", PQresultErrorMessage(res));
fprintf(stderr, "%s", OSUtils::jsonDump(*config, 2).c_str());
PQclear(res);
delete config;
config = nullptr;
continue;
}
PQclear(res);
res = PQexec(conn, "BEGIN");
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error beginning transaction: %s\n", PQresultErrorMessage(res));
PQclear(res);
delete config;
config = nullptr;
continue;
}
PQclear(res);
const char *v2[2] = {
memberId.c_str(),
networkId.c_str()
};
res = PQexecParams(conn,
"DELETE FROM ztc_member_ip_assignment WHERE member_id = $1 AND network_id = $2",
2,
NULL,
v2,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error updating IP address assignments: %s\n", PQresultErrorMessage(res));
PQclear(res);
PQclear(PQexec(conn, "ROLLBACK"));;
delete config;
config = nullptr;
continue;
}
PQclear(res);
std::vector<std::string> assignments;
for (auto i = (*config)["ipAssignments"].begin(); i != (*config)["ipAssignments"].end(); ++i) {
std::string addr = *i;
if (std::find(assignments.begin(), assignments.end(), addr) != assignments.end()) {
continue;
}
const char *v3[3] = {
memberId.c_str(),
networkId.c_str(),
addr.c_str()
};
res = PQexecParams(conn,
"INSERT INTO ztc_member_ip_assignment (member_id, network_id, address) VALUES ($1, $2, $3) ON CONFLICT (network_id, member_id, address) DO NOTHING",
3,
NULL,
v3,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error setting IP addresses for member: %s\n", PQresultErrorMessage(res));
PQclear(res);
PQclear(PQexec(conn, "ROLLBACK"));
break;;
}
assignments.push_back(addr);
}
res = PQexec(conn, "COMMIT");
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error committing ip address data: %s\n", PQresultErrorMessage(res));
}
PQclear(res);
const uint64_t nwidInt = OSUtils::jsonIntHex((*config)["nwid"], 0ULL);
const uint64_t memberidInt = OSUtils::jsonIntHex((*config)["id"], 0ULL);
if (nwidInt && memberidInt) {
nlohmann::json nwOrig;
nlohmann::json memOrig;
nlohmann::json memNew(*config);
get(nwidInt, nwOrig, memberidInt, memOrig);
_memberChanged(memOrig, memNew, qitem.second);
} else {
fprintf(stderr, "Can't notify of change. Error parsing nwid or memberid: %llu-%llu\n", (unsigned long long)nwidInt, (unsigned long long)memberidInt);
}
} catch (std::exception &e) {
fprintf(stderr, "ERROR: Error updating member: %s\n", e.what());
}
} else if (objtype == "network") {
try {
std::string id = (*config)["id"];
std::string controllerId = _myAddressStr.c_str();
std::string name = (*config)["name"];
std::string remoteTraceTarget("NULL");
if (!(*config)["remoteTraceTarget"].is_null()) {
remoteTraceTarget = (*config)["remoteTraceTarget"];
}
std::string rulesSource;
if ((*config)["rulesSource"].is_string()) {
rulesSource = (*config)["rulesSource"];
}
std::string caps = OSUtils::jsonDump((*config)["capabilitles"], -1);
std::string now = std::to_string(OSUtils::now());
std::string mtu = std::to_string((int)(*config)["mtu"]);
std::string mcastLimit = std::to_string((int)(*config)["multicastLimit"]);
std::string rtraceLevel = std::to_string((int)(*config)["remoteTraceLevel"]);
std::string rules = OSUtils::jsonDump((*config)["rules"], -1);
std::string tags = OSUtils::jsonDump((*config)["tags"], -1);
std::string v4mode = OSUtils::jsonDump((*config)["v4AssignMode"],-1);
std::string v6mode = OSUtils::jsonDump((*config)["v6AssignMode"], -1);
bool enableBroadcast = (*config)["enableBroadcast"];
bool isPrivate = (*config)["private"];
const char *values[16] = {
id.c_str(),
controllerId.c_str(),
caps.c_str(),
enableBroadcast ? "true" : "false",
now.c_str(),
mtu.c_str(),
mcastLimit.c_str(),
name.c_str(),
isPrivate ? "true" : "false",
rtraceLevel.c_str(),
(remoteTraceTarget == "NULL" ? NULL : remoteTraceTarget.c_str()),
rules.c_str(),
rulesSource.c_str(),
tags.c_str(),
v4mode.c_str(),
v6mode.c_str(),
};
// This ugly query exists because when we want to mirror networks to/from
// another data store (e.g. FileDB or LFDB) it is possible to get a network
// that doesn't exist in Central's database. This does an upsert and sets
// the owner_id to the "first" global admin in the user DB if the record
// did not previously exist. If the record already exists owner_id is left
// unchanged, so owner_id should be left out of the update clause.
PGresult *res = PQexecParams(conn,
"INSERT INTO ztc_network (id, creation_time, owner_id, controller_id, capabilities, enable_broadcast, "
"last_modified, mtu, multicast_limit, name, private, "
"remote_trace_level, remote_trace_target, rules, rules_source, "
"tags, v4_assign_mode, v6_assign_mode) VALUES ("
"$1, TO_TIMESTAMP($5::double precision/1000), "
"(SELECT user_id AS owner_id FROM ztc_global_permissions WHERE authorize = true AND del = true AND modify = true AND read = true LIMIT 1),"
"$2, $3, $4, TO_TIMESTAMP($5::double precision/1000), "
"$6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16) "
"ON CONFLICT (id) DO UPDATE set controller_id = EXCLUDED.controller_id, "
"capabilities = EXCLUDED.capabilities, enable_broadcast = EXCLUDED.enable_broadcast, "
"last_modified = EXCLUDED.last_modified, mtu = EXCLUDED.mtu, "
"multicast_limit = EXCLUDED.multicast_limit, name = EXCLUDED.name, "
"private = EXCLUDED.private, remote_trace_level = EXCLUDED.remote_trace_level, "
"remote_trace_target = EXCLUDED.remote_trace_target, rules = EXCLUDED.rules, "
"rules_source = EXCLUDED.rules_source, tags = EXCLUDED.tags, "
"v4_assign_mode = EXCLUDED.v4_assign_mode, v6_assign_mode = EXCLUDED.v6_assign_mode",
16,
NULL,
values,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error updating network record: %s\n", PQresultErrorMessage(res));
PQclear(res);
delete config;
config = nullptr;
continue;
}
PQclear(res);
res = PQexec(conn, "BEGIN");
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error beginnning transaction: %s\n", PQresultErrorMessage(res));
PQclear(res);
delete config;
config = nullptr;
continue;
}
PQclear(res);
const char *params[1] = {
id.c_str()
};
res = PQexecParams(conn,
"DELETE FROM ztc_network_assignment_pool WHERE network_id = $1",
1,
NULL,
params,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error updating assignment pool: %s\n", PQresultErrorMessage(res));
PQclear(res);
PQclear(PQexec(conn, "ROLLBACK"));
delete config;
config = nullptr;
continue;
}
PQclear(res);
auto pool = (*config)["ipAssignmentPools"];
bool err = false;
for (auto i = pool.begin(); i != pool.end(); ++i) {
std::string start = (*i)["ipRangeStart"];
std::string end = (*i)["ipRangeEnd"];
const char *p[3] = {
id.c_str(),
start.c_str(),
end.c_str()
};
res = PQexecParams(conn,
"INSERT INTO ztc_network_assignment_pool (network_id, ip_range_start, ip_range_end) "
"VALUES ($1, $2, $3)",
3,
NULL,
p,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error updating assignment pool: %s\n", PQresultErrorMessage(res));
PQclear(res);
err = true;
break;
}
PQclear(res);
}
if (err) {
PQclear(PQexec(conn, "ROLLBACK"));
delete config;
config = nullptr;
continue;
}
res = PQexecParams(conn,
"DELETE FROM ztc_network_route WHERE network_id = $1",
1,
NULL,
params,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error updating routes: %s\n", PQresultErrorMessage(res));
PQclear(res);
PQclear(PQexec(conn, "ROLLBACK"));
delete config;
config = nullptr;
continue;
}
auto routes = (*config)["routes"];
err = false;
for (auto i = routes.begin(); i != routes.end(); ++i) {
std::string t = (*i)["target"];
std::vector<std::string> target;
std::istringstream f(t);
std::string s;
while(std::getline(f, s, '/')) {
target.push_back(s);
}
if (target.empty() || target.size() != 2) {
continue;
}
std::string targetAddr = target[0];
std::string targetBits = target[1];
std::string via = "NULL";
if (!(*i)["via"].is_null()) {
via = (*i)["via"];
}
const char *p[4] = {
id.c_str(),
targetAddr.c_str(),
targetBits.c_str(),
(via == "NULL" ? NULL : via.c_str()),
};
res = PQexecParams(conn,
"INSERT INTO ztc_network_route (network_id, address, bits, via) VALUES ($1, $2, $3, $4)",
4,
NULL,
p,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error updating routes: %s\n", PQresultErrorMessage(res));
PQclear(res);
err = true;
break;
}
PQclear(res);
}
if (err) {
PQclear(PQexec(conn, "ROLLBACK"));
delete config;
config = nullptr;
continue;
}
res = PQexecParams(conn,
"DELETE FROM ztc_network_dns WHERE network_id = $1",
1,
NULL,
params,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error updating dns: %s\n", PQresultErrorMessage(res));
PQclear(res);
PQclear(PQexec(conn, "ROLLBACK"));
delete config;
config = nullptr;
continue;
}
auto dns = (*config)["dns"];
err = false;
for (auto i = dns.begin(); i < dns.end(); ++i) {
std::string domain = (*i)["domain"];
std::stringstream servers;
servers << "{";
for (auto j = dns["servers"].begin(); j < dns["servers"].end(); ++j) {
servers << *j;
if ( (j+1) != dns["servers"].end()) {
servers << ",";
}
}
servers << "}";
const char *p[3] = {
id.c_str(),
domain.c_str(),
servers.str().c_str()
};
res = PQexecParams(conn, "INSERT INTO ztc_network_dns (network_id, domain, servers) VALUES ($1, $2, $3)",
3,
NULL,
p,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error updating DNS: %s\n", PQresultErrorMessage(res));
PQclear(res);
err = true;
break;
}
PQclear(res);
}
if (err) {
PQclear(PQexec(conn, "ROLLBACK"));
delete config;
config = nullptr;
continue;
}
res = PQexec(conn, "COMMIT");
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error committing network update: %s\n", PQresultErrorMessage(res));
}
PQclear(res);
const uint64_t nwidInt = OSUtils::jsonIntHex((*config)["nwid"], 0ULL);
if (nwidInt) {
nlohmann::json nwOrig;
nlohmann::json nwNew(*config);
get(nwidInt, nwOrig);
_networkChanged(nwOrig, nwNew, qitem.second);
} else {
fprintf(stderr, "Can't notify network changed: %llu\n", (unsigned long long)nwidInt);
}
} catch (std::exception &e) {
fprintf(stderr, "ERROR: Error updating member: %s\n", e.what());
}
if (_rc != NULL) {
try {
std::string id = (*config)["id"];
std::string controllerId = _myAddressStr.c_str();
std::string key = "networks:{" + controllerId + "}";
if (_rc->clusterMode) {
_cluster->sadd(key, id);
} else {
_redis->sadd(key, id);
}
} catch (sw::redis::Error &e) {
fprintf(stderr, "ERROR: Error adding network to Redis: %s\n", e.what());
}
}
} else if (objtype == "_delete_network") {
try {
std::string networkId = (*config)["nwid"];
const char *values[1] = {
networkId.c_str()
};
PGresult * res = PQexecParams(conn,
"UPDATE ztc_network SET deleted = true WHERE id = $1",
1,
NULL,
values,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error deleting network: %s\n", PQresultErrorMessage(res));
}
PQclear(res);
} catch (std::exception &e) {
fprintf(stderr, "ERROR: Error deleting network: %s\n", e.what());
}
if (_rc != NULL) {
try {
std::string id = (*config)["id"];
std::string controllerId = _myAddressStr.c_str();
std::string key = "networks:{" + controllerId + "}";
if (_rc->clusterMode) {
_cluster->srem(key, id);
_cluster->del("network-nodes-online:{"+controllerId+"}:"+id);
} else {
_redis->srem(key, id);
_redis->del("network-nodes-online:{"+controllerId+"}:"+id);
}
} catch (sw::redis::Error &e) {
fprintf(stderr, "ERROR: Error adding network to Redis: %s\n", e.what());
}
}
} else if (objtype == "_delete_member") {
try {
std::string memberId = (*config)["id"];
std::string networkId = (*config)["nwid"];
const char *values[2] = {
memberId.c_str(),
networkId.c_str()
};
PGresult *res = PQexecParams(conn,
"UPDATE ztc_member SET hidden = true, deleted = true WHERE id = $1 AND network_id = $2",
2,
NULL,
values,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "ERROR: Error deleting member: %s\n", PQresultErrorMessage(res));
}
PQclear(res);
} catch (std::exception &e) {
fprintf(stderr, "ERROR: Error deleting member: %s\n", e.what());
}
if (_rc != NULL) {
try {
std::string memberId = (*config)["id"];
std::string networkId = (*config)["nwid"];
std::string controllerId = _myAddressStr.c_str();
std::string key = "network-nodes-all:{" + controllerId + "}:" + networkId;
if (_rc->clusterMode) {
_cluster->srem(key, memberId);
_cluster->del("member:{"+controllerId+"}:"+networkId+":"+memberId);
} else {
_redis->srem(key, memberId);
_redis->del("member:{"+controllerId+"}:"+networkId+":"+memberId);
}
} catch (sw::redis::Error &e) {
fprintf(stderr, "ERROR: Error deleting member from Redis: %s\n", e.what());
}
}
} else {
fprintf(stderr, "ERROR: unknown objtype");
}
} catch (std::exception &e) {
fprintf(stderr, "ERROR: Error getting objtype: %s\n", e.what());
}
std::this_thread::sleep_for(std::chrono::milliseconds(10));
}
PQfinish(conn);
if (_run == 1) {
fprintf(stderr, "ERROR: %s commitThread should still be running! Exiting Controller.\n", _myAddressStr.c_str());
exit(7);
}
fprintf(stderr, "commitThread finished\n");
}
void PostgreSQL::onlineNotificationThread()
{
waitForReady();
if (_rc != NULL) {
onlineNotification_Redis();
} else {
onlineNotification_Postgres();
}
}
void PostgreSQL::onlineNotification_Postgres()
{
PGconn *conn = getPgConn();
if (PQstatus(conn) == CONNECTION_BAD) {
fprintf(stderr, "Connection to database failed: %s\n", PQerrorMessage(conn));
PQfinish(conn);
exit(1);
}
_connected = 1;
nlohmann::json jtmp1, jtmp2;
while (_run == 1) {
if (PQstatus(conn) != CONNECTION_OK) {
fprintf(stderr, "ERROR: Online Notification thread lost connection to Postgres.");
PQfinish(conn);
exit(5);
}
std::unordered_map< std::pair<uint64_t,uint64_t>,std::pair<int64_t,InetAddress>,_PairHasher > lastOnline;
{
std::lock_guard<std::mutex> l(_lastOnline_l);
lastOnline.swap(_lastOnline);
}
PGresult *res = NULL;
std::stringstream memberUpdate;
memberUpdate << "INSERT INTO ztc_member_status (network_id, member_id, address, last_updated) VALUES ";
bool firstRun = true;
bool memberAdded = false;
for (auto i=lastOnline.begin(); i != lastOnline.end(); ++i) {
uint64_t nwid_i = i->first.first;
char nwidTmp[64];
char memTmp[64];
char ipTmp[64];
OSUtils::ztsnprintf(nwidTmp,sizeof(nwidTmp), "%.16llx", nwid_i);
OSUtils::ztsnprintf(memTmp,sizeof(memTmp), "%.10llx", i->first.second);
if(!get(nwid_i, jtmp1, i->first.second, jtmp2)) {
continue; // skip non existent networks/members
}
std::string networkId(nwidTmp);
std::string memberId(memTmp);
const char *qvals[2] = {
networkId.c_str(),
memberId.c_str()
};
res = PQexecParams(conn,
"SELECT id, network_id FROM ztc_member WHERE network_id = $1 AND id = $2",
2,
NULL,
qvals,
NULL,
NULL,
0);
if (PQresultStatus(res) != PGRES_TUPLES_OK) {
fprintf(stderr, "Member count failed: %s", PQerrorMessage(conn));
PQclear(res);
continue;
}
int nrows = PQntuples(res);
PQclear(res);
if (nrows == 1) {
int64_t ts = i->second.first;
std::string ipAddr = i->second.second.toIpString(ipTmp);
std::string timestamp = std::to_string(ts);
if (firstRun) {
firstRun = false;
} else {
memberUpdate << ", ";
}
memberUpdate << "('" << networkId << "', '" << memberId << "', ";
if (ipAddr.empty()) {
memberUpdate << "NULL, ";
} else {
memberUpdate << "'" << ipAddr << "', ";
}
memberUpdate << "TO_TIMESTAMP(" << timestamp << "::double precision/1000))";
memberAdded = true;
} else if (nrows > 1) {
fprintf(stderr, "nrows > 1?!?");
continue;
} else {
continue;
}
}
memberUpdate << " ON CONFLICT (network_id, member_id) DO UPDATE SET address = EXCLUDED.address, last_updated = EXCLUDED.last_updated;";
if (memberAdded) {
res = PQexec(conn, memberUpdate.str().c_str());
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
fprintf(stderr, "Multiple insert failed: %s", PQerrorMessage(conn));
}
PQclear(res);
}
std::this_thread::sleep_for(std::chrono::milliseconds(100));
}
fprintf(stderr, "%s: Fell out of run loop in onlineNotificationThread\n", _myAddressStr.c_str());
PQfinish(conn);
if (_run == 1) {
fprintf(stderr, "ERROR: %s onlineNotificationThread should still be running! Exiting Controller.\n", _myAddressStr.c_str());
exit(6);
}
}
void PostgreSQL::onlineNotification_Redis()
{
_connected = 1;
char buf[11] = {0};
std::string controllerId = std::string(_myAddress.toString(buf));
while (_run == 1) {
std::unordered_map< std::pair<uint64_t,uint64_t>,std::pair<int64_t,InetAddress>,_PairHasher > lastOnline;
{
std::lock_guard<std::mutex> l(_lastOnline_l);
lastOnline.swap(_lastOnline);
}
try {
if (!lastOnline.empty()) {
if (_rc->clusterMode) {
auto tx = _cluster->transaction(controllerId, true);
_doRedisUpdate(tx, controllerId, lastOnline);
} else {
auto tx = _redis->transaction(true);
_doRedisUpdate(tx, controllerId, lastOnline);
}
}
} catch (sw::redis::Error &e) {
#ifdef ZT_TRACE
fprintf(stderr, "Error in online notification thread (redis): %s\n", e.what());
#endif
}
std::this_thread::sleep_for(std::chrono::milliseconds(100));
}
}
void PostgreSQL::_doRedisUpdate(sw::redis::Transaction &tx, std::string &controllerId,
std::unordered_map< std::pair<uint64_t,uint64_t>,std::pair<int64_t,InetAddress>,_PairHasher > &lastOnline)
{
nlohmann::json jtmp1, jtmp2;
for (auto i=lastOnline.begin(); i != lastOnline.end(); ++i) {
uint64_t nwid_i = i->first.first;
uint64_t memberid_i = i->first.second;
char nwidTmp[64];
char memTmp[64];
char ipTmp[64];
OSUtils::ztsnprintf(nwidTmp,sizeof(nwidTmp), "%.16llx", nwid_i);
OSUtils::ztsnprintf(memTmp,sizeof(memTmp), "%.10llx", memberid_i);
if (!get(nwid_i, jtmp1, memberid_i, jtmp2)){
continue; // skip non existent members/networks
}
std::string networkId(nwidTmp);
std::string memberId(memTmp);
int64_t ts = i->second.first;
std::string ipAddr = i->second.second.toIpString(ipTmp);
std::string timestamp = std::to_string(ts);
std::unordered_map<std::string, std::string> record = {
{"id", memberId},
{"address", ipAddr},
{"last_updated", std::to_string(ts)}
};
tx.zadd("nodes-online:{"+controllerId+"}", memberId, ts)
.zadd("nodes-online2:{"+controllerId+"}", networkId+"-"+memberId, ts)
.zadd("network-nodes-online:{"+controllerId+"}:"+networkId, memberId, ts)
.zadd("active-networks:{"+controllerId+"}", networkId, ts)
.sadd("network-nodes-all:{"+controllerId+"}:"+networkId, memberId)
.hmset("member:{"+controllerId+"}:"+networkId+":"+memberId, record.begin(), record.end());
}
// expire records from all-nodes and network-nodes member list
uint64_t expireOld = OSUtils::now() - 300000;
tx.zremrangebyscore("nodes-online:{"+controllerId+"}", sw::redis::RightBoundedInterval<double>(expireOld, sw::redis::BoundType::LEFT_OPEN));
tx.zremrangebyscore("nodes-online2:{"+controllerId+"}", sw::redis::RightBoundedInterval<double>(expireOld, sw::redis::BoundType::LEFT_OPEN));
tx.zremrangebyscore("active-networks:{"+controllerId+"}", sw::redis::RightBoundedInterval<double>(expireOld, sw::redis::BoundType::LEFT_OPEN));
{
std::lock_guard<std::mutex> l(_networks_l);
for (const auto &it : _networks) {
uint64_t nwid_i = it.first;
char nwidTmp[64];
OSUtils::ztsnprintf(nwidTmp,sizeof(nwidTmp), "%.16llx", nwid_i);
tx.zremrangebyscore("network-nodes-online:{"+controllerId+"}:"+nwidTmp,
sw::redis::RightBoundedInterval<double>(expireOld, sw::redis::BoundType::LEFT_OPEN));
}
}
tx.exec();
}
PGconn *PostgreSQL::getPgConn(OverrideMode m)
{
if (m == ALLOW_PGBOUNCER_OVERRIDE) {
char *connStr = getenv("PGBOUNCER_CONNSTR");
if (connStr != NULL) {
fprintf(stderr, "PGBouncer Override\n");
std::string conn(connStr);
conn += " application_name=controller-";
conn += _myAddressStr.c_str();
return PQconnectdb(conn.c_str());
}
}
return PQconnectdb(_connString.c_str());
}
#endif //ZT_CONTROLLER_USE_LIBPQ
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