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EmbeddedNetworkController.cpp
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EmbeddedNetworkController.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 <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#ifndef _WIN32
#include <sys/time.h>
#endif
#include <sys/types.h>
#include <algorithm>
#include <utility>
#include <stdexcept>
#include <map>
#include <thread>
#include <memory>
#include "../include/ZeroTierOne.h"
#include "../version.h"
#include "EmbeddedNetworkController.hpp"
#include "LFDB.hpp"
#include "FileDB.hpp"
#ifdef ZT_CONTROLLER_USE_LIBPQ
#include "PostgreSQL.hpp"
#endif
#include "../node/Node.hpp"
#include "../node/CertificateOfMembership.hpp"
#include "../node/NetworkConfig.hpp"
#include "../node/Dictionary.hpp"
#include "../node/MAC.hpp"
using json = nlohmann::json;
// API version reported via JSON control plane
#define ZT_NETCONF_CONTROLLER_API_VERSION 4
// Min duration between requests for an address/nwid combo to prevent floods
#define ZT_NETCONF_MIN_REQUEST_PERIOD 1000
// Global maximum size of arrays in JSON objects
#define ZT_CONTROLLER_MAX_ARRAY_SIZE 16384
namespace ZeroTier {
namespace {
static json _renderRule(ZT_VirtualNetworkRule &rule)
{
char tmp[128];
json r = json::object();
const ZT_VirtualNetworkRuleType rt = (ZT_VirtualNetworkRuleType)(rule.t & 0x3f);
switch(rt) {
case ZT_NETWORK_RULE_ACTION_DROP:
r["type"] = "ACTION_DROP";
break;
case ZT_NETWORK_RULE_ACTION_ACCEPT:
r["type"] = "ACTION_ACCEPT";
break;
case ZT_NETWORK_RULE_ACTION_TEE:
r["type"] = "ACTION_TEE";
r["address"] = Address(rule.v.fwd.address).toString(tmp);
r["flags"] = (unsigned int)rule.v.fwd.flags;
r["length"] = (unsigned int)rule.v.fwd.length;
break;
case ZT_NETWORK_RULE_ACTION_WATCH:
r["type"] = "ACTION_WATCH";
r["address"] = Address(rule.v.fwd.address).toString(tmp);
r["flags"] = (unsigned int)rule.v.fwd.flags;
r["length"] = (unsigned int)rule.v.fwd.length;
break;
case ZT_NETWORK_RULE_ACTION_REDIRECT:
r["type"] = "ACTION_REDIRECT";
r["address"] = Address(rule.v.fwd.address).toString(tmp);
r["flags"] = (unsigned int)rule.v.fwd.flags;
break;
case ZT_NETWORK_RULE_ACTION_BREAK:
r["type"] = "ACTION_BREAK";
break;
default:
break;
}
if (r.size() == 0) {
switch(rt) {
case ZT_NETWORK_RULE_MATCH_SOURCE_ZEROTIER_ADDRESS:
r["type"] = "MATCH_SOURCE_ZEROTIER_ADDRESS";
r["zt"] = Address(rule.v.zt).toString(tmp);
break;
case ZT_NETWORK_RULE_MATCH_DEST_ZEROTIER_ADDRESS:
r["type"] = "MATCH_DEST_ZEROTIER_ADDRESS";
r["zt"] = Address(rule.v.zt).toString(tmp);
break;
case ZT_NETWORK_RULE_MATCH_VLAN_ID:
r["type"] = "MATCH_VLAN_ID";
r["vlanId"] = (unsigned int)rule.v.vlanId;
break;
case ZT_NETWORK_RULE_MATCH_VLAN_PCP:
r["type"] = "MATCH_VLAN_PCP";
r["vlanPcp"] = (unsigned int)rule.v.vlanPcp;
break;
case ZT_NETWORK_RULE_MATCH_VLAN_DEI:
r["type"] = "MATCH_VLAN_DEI";
r["vlanDei"] = (unsigned int)rule.v.vlanDei;
break;
case ZT_NETWORK_RULE_MATCH_MAC_SOURCE:
r["type"] = "MATCH_MAC_SOURCE";
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%.2x:%.2x:%.2x:%.2x:%.2x:%.2x",(unsigned int)rule.v.mac[0],(unsigned int)rule.v.mac[1],(unsigned int)rule.v.mac[2],(unsigned int)rule.v.mac[3],(unsigned int)rule.v.mac[4],(unsigned int)rule.v.mac[5]);
r["mac"] = tmp;
break;
case ZT_NETWORK_RULE_MATCH_MAC_DEST:
r["type"] = "MATCH_MAC_DEST";
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%.2x:%.2x:%.2x:%.2x:%.2x:%.2x",(unsigned int)rule.v.mac[0],(unsigned int)rule.v.mac[1],(unsigned int)rule.v.mac[2],(unsigned int)rule.v.mac[3],(unsigned int)rule.v.mac[4],(unsigned int)rule.v.mac[5]);
r["mac"] = tmp;
break;
case ZT_NETWORK_RULE_MATCH_IPV4_SOURCE:
r["type"] = "MATCH_IPV4_SOURCE";
r["ip"] = InetAddress(&(rule.v.ipv4.ip),4,(unsigned int)rule.v.ipv4.mask).toString(tmp);
break;
case ZT_NETWORK_RULE_MATCH_IPV4_DEST:
r["type"] = "MATCH_IPV4_DEST";
r["ip"] = InetAddress(&(rule.v.ipv4.ip),4,(unsigned int)rule.v.ipv4.mask).toString(tmp);
break;
case ZT_NETWORK_RULE_MATCH_IPV6_SOURCE:
r["type"] = "MATCH_IPV6_SOURCE";
r["ip"] = InetAddress(rule.v.ipv6.ip,16,(unsigned int)rule.v.ipv6.mask).toString(tmp);
break;
case ZT_NETWORK_RULE_MATCH_IPV6_DEST:
r["type"] = "MATCH_IPV6_DEST";
r["ip"] = InetAddress(rule.v.ipv6.ip,16,(unsigned int)rule.v.ipv6.mask).toString(tmp);
break;
case ZT_NETWORK_RULE_MATCH_IP_TOS:
r["type"] = "MATCH_IP_TOS";
r["mask"] = (unsigned int)rule.v.ipTos.mask;
r["start"] = (unsigned int)rule.v.ipTos.value[0];
r["end"] = (unsigned int)rule.v.ipTos.value[1];
break;
case ZT_NETWORK_RULE_MATCH_IP_PROTOCOL:
r["type"] = "MATCH_IP_PROTOCOL";
r["ipProtocol"] = (unsigned int)rule.v.ipProtocol;
break;
case ZT_NETWORK_RULE_MATCH_ETHERTYPE:
r["type"] = "MATCH_ETHERTYPE";
r["etherType"] = (unsigned int)rule.v.etherType;
break;
case ZT_NETWORK_RULE_MATCH_ICMP:
r["type"] = "MATCH_ICMP";
r["icmpType"] = (unsigned int)rule.v.icmp.type;
if ((rule.v.icmp.flags & 0x01) != 0)
r["icmpCode"] = (unsigned int)rule.v.icmp.code;
else r["icmpCode"] = json();
break;
case ZT_NETWORK_RULE_MATCH_IP_SOURCE_PORT_RANGE:
r["type"] = "MATCH_IP_SOURCE_PORT_RANGE";
r["start"] = (unsigned int)rule.v.port[0];
r["end"] = (unsigned int)rule.v.port[1];
break;
case ZT_NETWORK_RULE_MATCH_IP_DEST_PORT_RANGE:
r["type"] = "MATCH_IP_DEST_PORT_RANGE";
r["start"] = (unsigned int)rule.v.port[0];
r["end"] = (unsigned int)rule.v.port[1];
break;
case ZT_NETWORK_RULE_MATCH_CHARACTERISTICS:
r["type"] = "MATCH_CHARACTERISTICS";
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%.16llx",rule.v.characteristics);
r["mask"] = tmp;
break;
case ZT_NETWORK_RULE_MATCH_FRAME_SIZE_RANGE:
r["type"] = "MATCH_FRAME_SIZE_RANGE";
r["start"] = (unsigned int)rule.v.frameSize[0];
r["end"] = (unsigned int)rule.v.frameSize[1];
break;
case ZT_NETWORK_RULE_MATCH_RANDOM:
r["type"] = "MATCH_RANDOM";
r["probability"] = (unsigned long)rule.v.randomProbability;
break;
case ZT_NETWORK_RULE_MATCH_TAGS_DIFFERENCE:
r["type"] = "MATCH_TAGS_DIFFERENCE";
r["id"] = rule.v.tag.id;
r["value"] = rule.v.tag.value;
break;
case ZT_NETWORK_RULE_MATCH_TAGS_BITWISE_AND:
r["type"] = "MATCH_TAGS_BITWISE_AND";
r["id"] = rule.v.tag.id;
r["value"] = rule.v.tag.value;
break;
case ZT_NETWORK_RULE_MATCH_TAGS_BITWISE_OR:
r["type"] = "MATCH_TAGS_BITWISE_OR";
r["id"] = rule.v.tag.id;
r["value"] = rule.v.tag.value;
break;
case ZT_NETWORK_RULE_MATCH_TAGS_BITWISE_XOR:
r["type"] = "MATCH_TAGS_BITWISE_XOR";
r["id"] = rule.v.tag.id;
r["value"] = rule.v.tag.value;
break;
case ZT_NETWORK_RULE_MATCH_TAGS_EQUAL:
r["type"] = "MATCH_TAGS_EQUAL";
r["id"] = rule.v.tag.id;
r["value"] = rule.v.tag.value;
break;
case ZT_NETWORK_RULE_MATCH_TAG_SENDER:
r["type"] = "MATCH_TAG_SENDER";
r["id"] = rule.v.tag.id;
r["value"] = rule.v.tag.value;
break;
case ZT_NETWORK_RULE_MATCH_TAG_RECEIVER:
r["type"] = "MATCH_TAG_RECEIVER";
r["id"] = rule.v.tag.id;
r["value"] = rule.v.tag.value;
break;
case ZT_NETWORK_RULE_MATCH_INTEGER_RANGE:
r["type"] = "INTEGER_RANGE";
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%.16llx",rule.v.intRange.start);
r["start"] = tmp;
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%.16llx",rule.v.intRange.start + (uint64_t)rule.v.intRange.end);
r["end"] = tmp;
r["idx"] = rule.v.intRange.idx;
r["little"] = ((rule.v.intRange.format & 0x80) != 0);
r["bits"] = (rule.v.intRange.format & 63) + 1;
break;
default:
break;
}
if (r.size() > 0) {
r["not"] = ((rule.t & 0x80) != 0);
r["or"] = ((rule.t & 0x40) != 0);
}
}
return r;
}
static bool _parseRule(json &r,ZT_VirtualNetworkRule &rule)
{
if (!r.is_object())
return false;
const std::string t(OSUtils::jsonString(r["type"],""));
memset(&rule,0,sizeof(ZT_VirtualNetworkRule));
if (OSUtils::jsonBool(r["not"],false))
rule.t = 0x80;
else rule.t = 0x00;
if (OSUtils::jsonBool(r["or"],false))
rule.t |= 0x40;
bool tag = false;
if (t == "ACTION_DROP") {
rule.t |= ZT_NETWORK_RULE_ACTION_DROP;
return true;
} else if (t == "ACTION_ACCEPT") {
rule.t |= ZT_NETWORK_RULE_ACTION_ACCEPT;
return true;
} else if (t == "ACTION_TEE") {
rule.t |= ZT_NETWORK_RULE_ACTION_TEE;
rule.v.fwd.address = Utils::hexStrToU64(OSUtils::jsonString(r["address"],"0").c_str()) & 0xffffffffffULL;
rule.v.fwd.flags = (uint32_t)(OSUtils::jsonInt(r["flags"],0ULL) & 0xffffffffULL);
rule.v.fwd.length = (uint16_t)(OSUtils::jsonInt(r["length"],0ULL) & 0xffffULL);
return true;
} else if (t == "ACTION_WATCH") {
rule.t |= ZT_NETWORK_RULE_ACTION_WATCH;
rule.v.fwd.address = Utils::hexStrToU64(OSUtils::jsonString(r["address"],"0").c_str()) & 0xffffffffffULL;
rule.v.fwd.flags = (uint32_t)(OSUtils::jsonInt(r["flags"],0ULL) & 0xffffffffULL);
rule.v.fwd.length = (uint16_t)(OSUtils::jsonInt(r["length"],0ULL) & 0xffffULL);
return true;
} else if (t == "ACTION_REDIRECT") {
rule.t |= ZT_NETWORK_RULE_ACTION_REDIRECT;
rule.v.fwd.address = Utils::hexStrToU64(OSUtils::jsonString(r["address"],"0").c_str()) & 0xffffffffffULL;
rule.v.fwd.flags = (uint32_t)(OSUtils::jsonInt(r["flags"],0ULL) & 0xffffffffULL);
return true;
} else if (t == "ACTION_BREAK") {
rule.t |= ZT_NETWORK_RULE_ACTION_BREAK;
return true;
} else if (t == "MATCH_SOURCE_ZEROTIER_ADDRESS") {
rule.t |= ZT_NETWORK_RULE_MATCH_SOURCE_ZEROTIER_ADDRESS;
rule.v.zt = Utils::hexStrToU64(OSUtils::jsonString(r["zt"],"0").c_str()) & 0xffffffffffULL;
return true;
} else if (t == "MATCH_DEST_ZEROTIER_ADDRESS") {
rule.t |= ZT_NETWORK_RULE_MATCH_DEST_ZEROTIER_ADDRESS;
rule.v.zt = Utils::hexStrToU64(OSUtils::jsonString(r["zt"],"0").c_str()) & 0xffffffffffULL;
return true;
} else if (t == "MATCH_VLAN_ID") {
rule.t |= ZT_NETWORK_RULE_MATCH_VLAN_ID;
rule.v.vlanId = (uint16_t)(OSUtils::jsonInt(r["vlanId"],0ULL) & 0xffffULL);
return true;
} else if (t == "MATCH_VLAN_PCP") {
rule.t |= ZT_NETWORK_RULE_MATCH_VLAN_PCP;
rule.v.vlanPcp = (uint8_t)(OSUtils::jsonInt(r["vlanPcp"],0ULL) & 0xffULL);
return true;
} else if (t == "MATCH_VLAN_DEI") {
rule.t |= ZT_NETWORK_RULE_MATCH_VLAN_DEI;
rule.v.vlanDei = (uint8_t)(OSUtils::jsonInt(r["vlanDei"],0ULL) & 0xffULL);
return true;
} else if (t == "MATCH_MAC_SOURCE") {
rule.t |= ZT_NETWORK_RULE_MATCH_MAC_SOURCE;
const std::string mac(OSUtils::jsonString(r["mac"],"0"));
Utils::unhex(mac.c_str(),(unsigned int)mac.length(),rule.v.mac,6);
return true;
} else if (t == "MATCH_MAC_DEST") {
rule.t |= ZT_NETWORK_RULE_MATCH_MAC_DEST;
const std::string mac(OSUtils::jsonString(r["mac"],"0"));
Utils::unhex(mac.c_str(),(unsigned int)mac.length(),rule.v.mac,6);
return true;
} else if (t == "MATCH_IPV4_SOURCE") {
rule.t |= ZT_NETWORK_RULE_MATCH_IPV4_SOURCE;
InetAddress ip(OSUtils::jsonString(r["ip"],"0.0.0.0").c_str());
rule.v.ipv4.ip = reinterpret_cast<struct sockaddr_in *>(&ip)->sin_addr.s_addr;
rule.v.ipv4.mask = Utils::ntoh(reinterpret_cast<struct sockaddr_in *>(&ip)->sin_port) & 0xff;
if (rule.v.ipv4.mask > 32) rule.v.ipv4.mask = 32;
return true;
} else if (t == "MATCH_IPV4_DEST") {
rule.t |= ZT_NETWORK_RULE_MATCH_IPV4_DEST;
InetAddress ip(OSUtils::jsonString(r["ip"],"0.0.0.0").c_str());
rule.v.ipv4.ip = reinterpret_cast<struct sockaddr_in *>(&ip)->sin_addr.s_addr;
rule.v.ipv4.mask = Utils::ntoh(reinterpret_cast<struct sockaddr_in *>(&ip)->sin_port) & 0xff;
if (rule.v.ipv4.mask > 32) rule.v.ipv4.mask = 32;
return true;
} else if (t == "MATCH_IPV6_SOURCE") {
rule.t |= ZT_NETWORK_RULE_MATCH_IPV6_SOURCE;
InetAddress ip(OSUtils::jsonString(r["ip"],"::0").c_str());
memcpy(rule.v.ipv6.ip,reinterpret_cast<struct sockaddr_in6 *>(&ip)->sin6_addr.s6_addr,16);
rule.v.ipv6.mask = Utils::ntoh(reinterpret_cast<struct sockaddr_in6 *>(&ip)->sin6_port) & 0xff;
if (rule.v.ipv6.mask > 128) rule.v.ipv6.mask = 128;
return true;
} else if (t == "MATCH_IPV6_DEST") {
rule.t |= ZT_NETWORK_RULE_MATCH_IPV6_DEST;
InetAddress ip(OSUtils::jsonString(r["ip"],"::0").c_str());
memcpy(rule.v.ipv6.ip,reinterpret_cast<struct sockaddr_in6 *>(&ip)->sin6_addr.s6_addr,16);
rule.v.ipv6.mask = Utils::ntoh(reinterpret_cast<struct sockaddr_in6 *>(&ip)->sin6_port) & 0xff;
if (rule.v.ipv6.mask > 128) rule.v.ipv6.mask = 128;
return true;
} else if (t == "MATCH_IP_TOS") {
rule.t |= ZT_NETWORK_RULE_MATCH_IP_TOS;
rule.v.ipTos.mask = (uint8_t)(OSUtils::jsonInt(r["mask"],0ULL) & 0xffULL);
rule.v.ipTos.value[0] = (uint8_t)(OSUtils::jsonInt(r["start"],0ULL) & 0xffULL);
rule.v.ipTos.value[1] = (uint8_t)(OSUtils::jsonInt(r["end"],0ULL) & 0xffULL);
return true;
} else if (t == "MATCH_IP_PROTOCOL") {
rule.t |= ZT_NETWORK_RULE_MATCH_IP_PROTOCOL;
rule.v.ipProtocol = (uint8_t)(OSUtils::jsonInt(r["ipProtocol"],0ULL) & 0xffULL);
return true;
} else if (t == "MATCH_ETHERTYPE") {
rule.t |= ZT_NETWORK_RULE_MATCH_ETHERTYPE;
rule.v.etherType = (uint16_t)(OSUtils::jsonInt(r["etherType"],0ULL) & 0xffffULL);
return true;
} else if (t == "MATCH_ICMP") {
rule.t |= ZT_NETWORK_RULE_MATCH_ICMP;
rule.v.icmp.type = (uint8_t)(OSUtils::jsonInt(r["icmpType"],0ULL) & 0xffULL);
json &code = r["icmpCode"];
if (code.is_null()) {
rule.v.icmp.code = 0;
rule.v.icmp.flags = 0x00;
} else {
rule.v.icmp.code = (uint8_t)(OSUtils::jsonInt(code,0ULL) & 0xffULL);
rule.v.icmp.flags = 0x01;
}
return true;
} else if (t == "MATCH_IP_SOURCE_PORT_RANGE") {
rule.t |= ZT_NETWORK_RULE_MATCH_IP_SOURCE_PORT_RANGE;
rule.v.port[0] = (uint16_t)(OSUtils::jsonInt(r["start"],0ULL) & 0xffffULL);
rule.v.port[1] = (uint16_t)(OSUtils::jsonInt(r["end"],(uint64_t)rule.v.port[0]) & 0xffffULL);
return true;
} else if (t == "MATCH_IP_DEST_PORT_RANGE") {
rule.t |= ZT_NETWORK_RULE_MATCH_IP_DEST_PORT_RANGE;
rule.v.port[0] = (uint16_t)(OSUtils::jsonInt(r["start"],0ULL) & 0xffffULL);
rule.v.port[1] = (uint16_t)(OSUtils::jsonInt(r["end"],(uint64_t)rule.v.port[0]) & 0xffffULL);
return true;
} else if (t == "MATCH_CHARACTERISTICS") {
rule.t |= ZT_NETWORK_RULE_MATCH_CHARACTERISTICS;
if (r.count("mask")) {
json &v = r["mask"];
if (v.is_number()) {
rule.v.characteristics = v;
} else {
std::string tmp = v;
rule.v.characteristics = Utils::hexStrToU64(tmp.c_str());
}
}
return true;
} else if (t == "MATCH_FRAME_SIZE_RANGE") {
rule.t |= ZT_NETWORK_RULE_MATCH_FRAME_SIZE_RANGE;
rule.v.frameSize[0] = (uint16_t)(OSUtils::jsonInt(r["start"],0ULL) & 0xffffULL);
rule.v.frameSize[1] = (uint16_t)(OSUtils::jsonInt(r["end"],(uint64_t)rule.v.frameSize[0]) & 0xffffULL);
return true;
} else if (t == "MATCH_RANDOM") {
rule.t |= ZT_NETWORK_RULE_MATCH_RANDOM;
rule.v.randomProbability = (uint32_t)(OSUtils::jsonInt(r["probability"],0ULL) & 0xffffffffULL);
return true;
} else if (t == "MATCH_TAGS_DIFFERENCE") {
rule.t |= ZT_NETWORK_RULE_MATCH_TAGS_DIFFERENCE;
tag = true;
} else if (t == "MATCH_TAGS_BITWISE_AND") {
rule.t |= ZT_NETWORK_RULE_MATCH_TAGS_BITWISE_AND;
tag = true;
} else if (t == "MATCH_TAGS_BITWISE_OR") {
rule.t |= ZT_NETWORK_RULE_MATCH_TAGS_BITWISE_OR;
tag = true;
} else if (t == "MATCH_TAGS_BITWISE_XOR") {
rule.t |= ZT_NETWORK_RULE_MATCH_TAGS_BITWISE_XOR;
tag = true;
} else if (t == "MATCH_TAGS_EQUAL") {
rule.t |= ZT_NETWORK_RULE_MATCH_TAGS_EQUAL;
tag = true;
} else if (t == "MATCH_TAG_SENDER") {
rule.t |= ZT_NETWORK_RULE_MATCH_TAG_SENDER;
tag = true;
} else if (t == "MATCH_TAG_RECEIVER") {
rule.t |= ZT_NETWORK_RULE_MATCH_TAG_RECEIVER;
tag = true;
} else if (t == "INTEGER_RANGE") {
json &s = r["start"];
if (s.is_string()) {
std::string tmp = s;
rule.v.intRange.start = Utils::hexStrToU64(tmp.c_str());
} else {
rule.v.intRange.start = OSUtils::jsonInt(s,0ULL);
}
json &e = r["end"];
if (e.is_string()) {
std::string tmp = e;
rule.v.intRange.end = (uint32_t)(Utils::hexStrToU64(tmp.c_str()) - rule.v.intRange.start);
} else {
rule.v.intRange.end = (uint32_t)(OSUtils::jsonInt(e,0ULL) - rule.v.intRange.start);
}
rule.v.intRange.idx = (uint16_t)OSUtils::jsonInt(r["idx"],0ULL);
rule.v.intRange.format = (OSUtils::jsonBool(r["little"],false)) ? 0x80 : 0x00;
rule.v.intRange.format |= (uint8_t)((OSUtils::jsonInt(r["bits"],1ULL) - 1) & 63);
}
if (tag) {
rule.v.tag.id = (uint32_t)(OSUtils::jsonInt(r["id"],0ULL) & 0xffffffffULL);
rule.v.tag.value = (uint32_t)(OSUtils::jsonInt(r["value"],0ULL) & 0xffffffffULL);
return true;
}
return false;
}
} // anonymous namespace
EmbeddedNetworkController::EmbeddedNetworkController(Node *node,const char *ztPath,const char *dbPath, int listenPort, MQConfig *mqc) :
_startTime(OSUtils::now()),
_listenPort(listenPort),
_node(node),
_ztPath(ztPath),
_path(dbPath),
_sender((NetworkController::Sender *)0),
_db(this),
_mqc(mqc)
{
}
EmbeddedNetworkController::~EmbeddedNetworkController()
{
std::lock_guard<std::mutex> l(_threads_l);
_queue.stop();
for(auto t=_threads.begin();t!=_threads.end();++t)
t->join();
}
void EmbeddedNetworkController::init(const Identity &signingId,Sender *sender)
{
char tmp[64];
_signingId = signingId;
_sender = sender;
_signingIdAddressString = signingId.address().toString(tmp);
#ifdef ZT_CONTROLLER_USE_LIBPQ
if ((_path.length() > 9)&&(_path.substr(0,9) == "postgres:")) {
_db.addDB(std::shared_ptr<DB>(new PostgreSQL(_signingId,_path.substr(9).c_str(), _listenPort, _mqc)));
} else {
#endif
_db.addDB(std::shared_ptr<DB>(new FileDB(_path.c_str())));
#ifdef ZT_CONTROLLER_USE_LIBPQ
}
#endif
std::string lfJSON;
OSUtils::readFile((_ztPath + ZT_PATH_SEPARATOR_S "local.conf").c_str(),lfJSON);
if (lfJSON.length() > 0) {
nlohmann::json lfConfig(OSUtils::jsonParse(lfJSON));
nlohmann::json &settings = lfConfig["settings"];
if (settings.is_object()) {
nlohmann::json &controllerDb = settings["controllerDb"];
if (controllerDb.is_object()) {
std::string type = controllerDb["type"];
if (type == "lf") {
std::string lfOwner = controllerDb["owner"];
std::string lfHost = controllerDb["host"];
int lfPort = controllerDb["port"];
bool storeOnlineState = controllerDb["storeOnlineState"];
if ((lfOwner.length())&&(lfHost.length())&&(lfPort > 0)&&(lfPort < 65536)) {
std::size_t pubHdrLoc = lfOwner.find("Public: ");
if ((pubHdrLoc > 0)&&((pubHdrLoc + 8) < lfOwner.length())) {
std::string lfOwnerPublic = lfOwner.substr(pubHdrLoc + 8);
std::size_t pubHdrEnd = lfOwnerPublic.find_first_of("\n\r\t ");
if (pubHdrEnd != std::string::npos) {
lfOwnerPublic = lfOwnerPublic.substr(0,pubHdrEnd);
_db.addDB(std::shared_ptr<DB>(new LFDB(_signingId,_path.c_str(),lfOwner.c_str(),lfOwnerPublic.c_str(),lfHost.c_str(),lfPort,storeOnlineState)));
}
}
}
}
}
}
}
_db.waitForReady();
}
void EmbeddedNetworkController::request(
uint64_t nwid,
const InetAddress &fromAddr,
uint64_t requestPacketId,
const Identity &identity,
const Dictionary<ZT_NETWORKCONFIG_METADATA_DICT_CAPACITY> &metaData)
{
if (((!_signingId)||(!_signingId.hasPrivate()))||(_signingId.address().toInt() != (nwid >> 24))||(!_sender))
return;
_startThreads();
_RQEntry *qe = new _RQEntry;
qe->nwid = nwid;
qe->requestPacketId = requestPacketId;
qe->fromAddr = fromAddr;
qe->identity = identity;
qe->metaData = metaData;
qe->type = _RQEntry::RQENTRY_TYPE_REQUEST;
_queue.post(qe);
}
unsigned int EmbeddedNetworkController::handleControlPlaneHttpGET(
const std::vector<std::string> &path,
const std::map<std::string,std::string> &urlArgs,
const std::map<std::string,std::string> &headers,
const std::string &body,
std::string &responseBody,
std::string &responseContentType)
{
if ((path.size() > 0)&&(path[0] == "network")) {
if ((path.size() >= 2)&&(path[1].length() == 16)) {
const uint64_t nwid = Utils::hexStrToU64(path[1].c_str());
json network;
if (!_db.get(nwid,network))
return 404;
if (path.size() >= 3) {
if (path[2] == "member") {
if (path.size() >= 4) {
// Get member
const uint64_t address = Utils::hexStrToU64(path[3].c_str());
json member;
if (!_db.get(nwid,network,address,member))
return 404;
responseBody = OSUtils::jsonDump(member);
responseContentType = "application/json";
} else {
// List members and their revisions
responseBody = "{";
std::vector<json> members;
if (_db.get(nwid,network,members)) {
responseBody.reserve((members.size() + 2) * 32);
std::string mid;
for(auto member=members.begin();member!=members.end();++member) {
mid = (*member)["id"];
char tmp[128];
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%s\"%s\":%llu",(responseBody.length() > 1) ? "," : "",mid.c_str(),(unsigned long long)OSUtils::jsonInt((*member)["revision"],0));
responseBody.append(tmp);
}
}
responseBody.push_back('}');
responseContentType = "application/json";
}
return 200;
} // else 404
} else {
// Get network
responseBody = OSUtils::jsonDump(network);
responseContentType = "application/json";
return 200;
}
} else if (path.size() == 1) {
// List networks
std::set<uint64_t> networkIds;
_db.networks(networkIds);
char tmp[64];
responseBody = "[";
responseBody.reserve((networkIds.size() + 1) * 24);
for(std::set<uint64_t>::const_iterator i(networkIds.begin());i!=networkIds.end();++i) {
if (responseBody.length() > 1)
responseBody.push_back(',');
OSUtils::ztsnprintf(tmp,sizeof(tmp),"\"%.16llx\"",(unsigned long long)*i);
responseBody.append(tmp);
}
responseBody.push_back(']');
responseContentType = "application/json";
return 200;
} // else 404
} else {
// Controller status
char tmp[4096];
const bool dbOk = _db.isReady();
OSUtils::ztsnprintf(tmp,sizeof(tmp),"{\n\t\"controller\": true,\n\t\"apiVersion\": %d,\n\t\"clock\": %llu,\n\t\"databaseReady\": %s\n}\n",ZT_NETCONF_CONTROLLER_API_VERSION,(unsigned long long)OSUtils::now(),dbOk ? "true" : "false");
responseBody = tmp;
responseContentType = "application/json";
return dbOk ? 200 : 503;
}
return 404;
}
unsigned int EmbeddedNetworkController::handleControlPlaneHttpPOST(
const std::vector<std::string> &path,
const std::map<std::string,std::string> &urlArgs,
const std::map<std::string,std::string> &headers,
const std::string &body,
std::string &responseBody,
std::string &responseContentType)
{
if (path.empty())
return 404;
json b;
try {
b = OSUtils::jsonParse(body);
if (!b.is_object()) {
responseBody = "{ \"message\": \"body is not a JSON object\" }";
responseContentType = "application/json";
return 400;
}
} catch ( ... ) {
responseBody = "{ \"message\": \"body JSON is invalid\" }";
responseContentType = "application/json";
return 400;
}
const int64_t now = OSUtils::now();
if (path[0] == "network") {
if ((path.size() >= 2)&&(path[1].length() == 16)) {
uint64_t nwid = Utils::hexStrToU64(path[1].c_str());
char nwids[24];
OSUtils::ztsnprintf(nwids,sizeof(nwids),"%.16llx",(unsigned long long)nwid);
if (path.size() >= 3) {
if ((path.size() == 4)&&(path[2] == "member")&&(path[3].length() == 10)) {
uint64_t address = Utils::hexStrToU64(path[3].c_str());
char addrs[24];
OSUtils::ztsnprintf(addrs,sizeof(addrs),"%.10llx",(unsigned long long)address);
json member,network;
_db.get(nwid,network,address,member);
DB::initMember(member);
try {
if (b.count("activeBridge")) member["activeBridge"] = OSUtils::jsonBool(b["activeBridge"],false);
if (b.count("noAutoAssignIps")) member["noAutoAssignIps"] = OSUtils::jsonBool(b["noAutoAssignIps"],false);
if (b.count("remoteTraceTarget")) {
const std::string rtt(OSUtils::jsonString(b["remoteTraceTarget"],""));
if (rtt.length() == 10) {
member["remoteTraceTarget"] = rtt;
} else {
member["remoteTraceTarget"] = json();
}
}
if (b.count("remoteTraceLevel")) member["remoteTraceLevel"] = OSUtils::jsonInt(b["remoteTraceLevel"],0ULL);
if (b.count("authorized")) {
const bool newAuth = OSUtils::jsonBool(b["authorized"],false);
if (newAuth != OSUtils::jsonBool(member["authorized"],false)) {
member["authorized"] = newAuth;
member[((newAuth) ? "lastAuthorizedTime" : "lastDeauthorizedTime")] = now;
if (newAuth) {
member["lastAuthorizedCredentialType"] = "api";
member["lastAuthorizedCredential"] = json();
}
}
}
if (b.count("ipAssignments")) {
json &ipa = b["ipAssignments"];
if (ipa.is_array()) {
json mipa(json::array());
for(unsigned long i=0;i<ipa.size();++i) {
std::string ips = ipa[i];
InetAddress ip(ips.c_str());
if ((ip.ss_family == AF_INET)||(ip.ss_family == AF_INET6)) {
char tmpip[64];
mipa.push_back(ip.toIpString(tmpip));
if (mipa.size() >= ZT_CONTROLLER_MAX_ARRAY_SIZE)
break;
}
}
member["ipAssignments"] = mipa;
}
}
if (b.count("tags")) {
json &tags = b["tags"];
if (tags.is_array()) {
std::map<uint64_t,uint64_t> mtags;
for(unsigned long i=0;i<tags.size();++i) {
json &tag = tags[i];
if ((tag.is_array())&&(tag.size() == 2))
mtags[OSUtils::jsonInt(tag[0],0ULL) & 0xffffffffULL] = OSUtils::jsonInt(tag[1],0ULL) & 0xffffffffULL;
}
json mtagsa = json::array();
for(std::map<uint64_t,uint64_t>::iterator t(mtags.begin());t!=mtags.end();++t) {
json ta = json::array();
ta.push_back(t->first);
ta.push_back(t->second);
mtagsa.push_back(ta);
if (mtagsa.size() >= ZT_CONTROLLER_MAX_ARRAY_SIZE)
break;
}
member["tags"] = mtagsa;
}
}
if (b.count("capabilities")) {
json &capabilities = b["capabilities"];
if (capabilities.is_array()) {
json mcaps = json::array();
for(unsigned long i=0;i<capabilities.size();++i) {
mcaps.push_back(OSUtils::jsonInt(capabilities[i],0ULL));
if (mcaps.size() >= ZT_CONTROLLER_MAX_ARRAY_SIZE)
break;
}
std::sort(mcaps.begin(),mcaps.end());
mcaps.erase(std::unique(mcaps.begin(),mcaps.end()),mcaps.end());
member["capabilities"] = mcaps;
}
}
} catch ( ... ) {
responseBody = "{ \"message\": \"exception while processing parameters in JSON body\" }";
responseContentType = "application/json";
return 400;
}
member["id"] = addrs;
member["address"] = addrs; // legacy
member["nwid"] = nwids;
DB::cleanMember(member);
_db.save(member,true);
responseBody = OSUtils::jsonDump(member);
responseContentType = "application/json";
return 200;
} // else 404
} else {
// POST to network ID
// Magic ID ending with ______ picks a random unused network ID
if (path[1].substr(10) == "______") {
nwid = 0;
uint64_t nwidPrefix = (Utils::hexStrToU64(path[1].substr(0,10).c_str()) << 24) & 0xffffffffff000000ULL;
uint64_t nwidPostfix = 0;
for(unsigned long k=0;k<100000;++k) { // sanity limit on trials
Utils::getSecureRandom(&nwidPostfix,sizeof(nwidPostfix));
uint64_t tryNwid = nwidPrefix | (nwidPostfix & 0xffffffULL);
if ((tryNwid & 0xffffffULL) == 0ULL) tryNwid |= 1ULL;
if (!_db.hasNetwork(tryNwid)) {
nwid = tryNwid;
break;
}
}
if (!nwid)
return 503;
}
OSUtils::ztsnprintf(nwids,sizeof(nwids),"%.16llx",(unsigned long long)nwid);
json network;
_db.get(nwid,network);
DB::initNetwork(network);
try {
if (b.count("name")) network["name"] = OSUtils::jsonString(b["name"],"");
if (b.count("private")) network["private"] = OSUtils::jsonBool(b["private"],true);
if (b.count("enableBroadcast")) network["enableBroadcast"] = OSUtils::jsonBool(b["enableBroadcast"],false);
if (b.count("multicastLimit")) network["multicastLimit"] = OSUtils::jsonInt(b["multicastLimit"],32ULL);
if (b.count("mtu")) network["mtu"] = std::max(std::min((unsigned int)OSUtils::jsonInt(b["mtu"],ZT_DEFAULT_MTU),(unsigned int)ZT_MAX_MTU),(unsigned int)ZT_MIN_MTU);
if (b.count("remoteTraceTarget")) {
const std::string rtt(OSUtils::jsonString(b["remoteTraceTarget"],""));
if (rtt.length() == 10) {
network["remoteTraceTarget"] = rtt;
} else {
network["remoteTraceTarget"] = json();
}
}
if (b.count("remoteTraceLevel")) network["remoteTraceLevel"] = OSUtils::jsonInt(b["remoteTraceLevel"],0ULL);
if (b.count("v4AssignMode")) {
json nv4m;
json &v4m = b["v4AssignMode"];
if (v4m.is_string()) { // backward compatibility
nv4m["zt"] = (OSUtils::jsonString(v4m,"") == "zt");
} else if (v4m.is_object()) {
nv4m["zt"] = OSUtils::jsonBool(v4m["zt"],false);
} else nv4m["zt"] = false;
network["v4AssignMode"] = nv4m;
}
if (b.count("v6AssignMode")) {
json nv6m;
json &v6m = b["v6AssignMode"];
if (!nv6m.is_object()) nv6m = json::object();
if (v6m.is_string()) { // backward compatibility
std::vector<std::string> v6ms(OSUtils::split(OSUtils::jsonString(v6m,"").c_str(),",","",""));
std::sort(v6ms.begin(),v6ms.end());
v6ms.erase(std::unique(v6ms.begin(),v6ms.end()),v6ms.end());
nv6m["rfc4193"] = false;
nv6m["zt"] = false;
nv6m["6plane"] = false;
for(std::vector<std::string>::iterator i(v6ms.begin());i!=v6ms.end();++i) {
if (*i == "rfc4193")
nv6m["rfc4193"] = true;
else if (*i == "zt")
nv6m["zt"] = true;
else if (*i == "6plane")
nv6m["6plane"] = true;
}
} else if (v6m.is_object()) {
if (v6m.count("rfc4193")) nv6m["rfc4193"] = OSUtils::jsonBool(v6m["rfc4193"],false);
if (v6m.count("zt")) nv6m["zt"] = OSUtils::jsonBool(v6m["zt"],false);
if (v6m.count("6plane")) nv6m["6plane"] = OSUtils::jsonBool(v6m["6plane"],false);
} else {
nv6m["rfc4193"] = false;
nv6m["zt"] = false;
nv6m["6plane"] = false;
}
network["v6AssignMode"] = nv6m;
}
if (b.count("routes")) {
json &rts = b["routes"];
if (rts.is_array()) {
json nrts = json::array();
for(unsigned long i=0;i<rts.size();++i) {
json &rt = rts[i];
if (rt.is_object()) {
json &target = rt["target"];
json &via = rt["via"];
if (target.is_string()) {
InetAddress t(target.get<std::string>().c_str());
InetAddress v;
if (via.is_string()) v.fromString(via.get<std::string>().c_str());
if ( ((t.ss_family == AF_INET)||(t.ss_family == AF_INET6)) && (t.netmaskBitsValid()) ) {
json tmp;
char tmp2[64];
tmp["target"] = t.toString(tmp2);
if (v.ss_family == t.ss_family)
tmp["via"] = v.toIpString(tmp2);
else tmp["via"] = json();
nrts.push_back(tmp);
if (nrts.size() >= ZT_CONTROLLER_MAX_ARRAY_SIZE)
break;
}
}
}
}
network["routes"] = nrts;
}
}
if (b.count("ipAssignmentPools")) {
json &ipp = b["ipAssignmentPools"];
if (ipp.is_array()) {
json nipp = json::array();
for(unsigned long i=0;i<ipp.size();++i) {
json &ip = ipp[i];
if ((ip.is_object())&&(ip.count("ipRangeStart"))&&(ip.count("ipRangeEnd"))) {
InetAddress f(OSUtils::jsonString(ip["ipRangeStart"],"").c_str());
InetAddress t(OSUtils::jsonString(ip["ipRangeEnd"],"").c_str());
if ( ((f.ss_family == AF_INET)||(f.ss_family == AF_INET6)) && (f.ss_family == t.ss_family) ) {
json tmp = json::object();
char tmp2[64];
tmp["ipRangeStart"] = f.toIpString(tmp2);
tmp["ipRangeEnd"] = t.toIpString(tmp2);
nipp.push_back(tmp);
if (nipp.size() >= ZT_CONTROLLER_MAX_ARRAY_SIZE)
break;
}
}
}
network["ipAssignmentPools"] = nipp;
}
}
if (b.count("rules")) {
json &rules = b["rules"];
if (rules.is_array()) {
json nrules = json::array();
for(unsigned long i=0;i<rules.size();++i) {
json &rule = rules[i];
if (rule.is_object()) {
ZT_VirtualNetworkRule ztr;
if (_parseRule(rule,ztr)) {
nrules.push_back(_renderRule(ztr));
if (nrules.size() >= ZT_CONTROLLER_MAX_ARRAY_SIZE)
break;
}
}
}
network["rules"] = nrules;
}
}
if (b.count("authTokens")) {
json &authTokens = b["authTokens"];
if (authTokens.is_object()) {
json nat;
for(json::iterator t(authTokens.begin());t!=authTokens.end();++t) {
if ((t.value().is_number())&&(t.value() >= 0))
nat[t.key()] = t.value();
}
network["authTokens"] = nat;
} else {
network["authTokens"] = {{}};
}
}
if (b.count("capabilities")) {
json &capabilities = b["capabilities"];
if (capabilities.is_array()) {
std::map< uint64_t,json > ncaps;
for(unsigned long i=0;i<capabilities.size();++i) {
json &cap = capabilities[i];
if (cap.is_object()) {
json ncap = json::object();
const uint64_t capId = OSUtils::jsonInt(cap["id"],0ULL);
ncap["id"] = capId;
ncap["default"] = OSUtils::jsonBool(cap["default"],false);
json &rules = cap["rules"];
json nrules = json::array();
if (rules.is_array()) {
for(unsigned long i=0;i<rules.size();++i) {
json &rule = rules[i];
if (rule.is_object()) {
ZT_VirtualNetworkRule ztr;
if (_parseRule(rule,ztr)) {
nrules.push_back(_renderRule(ztr));
if (nrules.size() >= ZT_CONTROLLER_MAX_ARRAY_SIZE)
break;
}
}
}
}
ncap["rules"] = nrules;
ncaps[capId] = ncap;
}
}
json ncapsa = json::array();
for(std::map< uint64_t,json >::iterator c(ncaps.begin());c!=ncaps.end();++c) {
ncapsa.push_back(c->second);
if (ncapsa.size() >= ZT_CONTROLLER_MAX_ARRAY_SIZE)
break;
}
network["capabilities"] = ncapsa;