ZeroTierOne/node/NetworkConfig.cpp
2024-09-26 08:52:29 -04:00

594 lines
23 KiB
C++

/*
* 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: 2026-01-01
*
* 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 "NetworkConfig.hpp"
#include <algorithm>
#include <stdint.h>
namespace ZeroTier {
bool NetworkConfig::toDictionary(Dictionary<ZT_NETWORKCONFIG_DICT_CAPACITY>& d, bool includeLegacy) const
{
Buffer<ZT_NETWORKCONFIG_DICT_CAPACITY>* tmp = new Buffer<ZT_NETWORKCONFIG_DICT_CAPACITY>();
char tmp2[128] = { 0 };
try {
d.clear();
// Try to put the more human-readable fields first
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_VERSION, (uint64_t)ZT_NETWORKCONFIG_VERSION)) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_NETWORK_ID, this->networkId)) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_TIMESTAMP, this->timestamp)) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_CREDENTIAL_TIME_MAX_DELTA, this->credentialTimeMaxDelta)) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_REVISION, this->revision)) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_ISSUED_TO, this->issuedTo.toString(tmp2))) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_REMOTE_TRACE_TARGET, this->remoteTraceTarget.toString(tmp2))) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_REMOTE_TRACE_LEVEL, (uint64_t)this->remoteTraceLevel)) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_FLAGS, this->flags)) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_MULTICAST_LIMIT, (uint64_t)this->multicastLimit)) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_TYPE, (uint64_t)this->type)) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_NAME, this->name)) {
delete tmp;
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_MTU, (uint64_t)this->mtu)) {
delete tmp;
return false;
}
#ifdef ZT_SUPPORT_OLD_STYLE_NETCONF
if (includeLegacy) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_ENABLE_BROADCAST_OLD, this->enableBroadcast())) {
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_PRIVATE_OLD, this->isPrivate())) {
return false;
}
std::string v4s;
for (unsigned int i = 0; i < staticIpCount; ++i) {
if (this->staticIps[i].ss_family == AF_INET) {
if (v4s.length() > 0) {
v4s.push_back(',');
}
char buf[64];
v4s.append(this->staticIps[i].toString(buf));
}
}
if (v4s.length() > 0) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_IPV4_STATIC_OLD, v4s.c_str())) {
return false;
}
}
std::string v6s;
for (unsigned int i = 0; i < staticIpCount; ++i) {
if (this->staticIps[i].ss_family == AF_INET6) {
if (v6s.length() > 0) {
v6s.push_back(',');
}
char buf[64];
v6s.append(this->staticIps[i].toString(buf));
}
}
if (v6s.length() > 0) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_IPV6_STATIC_OLD, v6s.c_str())) {
return false;
}
}
std::string ets;
unsigned int et = 0;
ZT_VirtualNetworkRuleType lastrt = ZT_NETWORK_RULE_ACTION_ACCEPT;
for (unsigned int i = 0; i < ruleCount; ++i) {
ZT_VirtualNetworkRuleType rt = (ZT_VirtualNetworkRuleType)(rules[i].t & 0x7f);
if (rt == ZT_NETWORK_RULE_MATCH_ETHERTYPE) {
et = rules[i].v.etherType;
}
else if (rt == ZT_NETWORK_RULE_ACTION_ACCEPT) {
if (((int)lastrt < 32) || (lastrt == ZT_NETWORK_RULE_MATCH_ETHERTYPE)) {
if (ets.length() > 0) {
ets.push_back(',');
}
char tmp2[16] = { 0 };
ets.append(Utils::hex((uint16_t)et, tmp2));
}
et = 0;
}
lastrt = rt;
}
if (ets.length() > 0) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_ALLOWED_ETHERNET_TYPES_OLD, ets.c_str())) {
return false;
}
}
if (this->com) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_CERTIFICATE_OF_MEMBERSHIP_OLD, this->com.toString().c_str())) {
return false;
}
}
std::string ab;
for (unsigned int i = 0; i < this->specialistCount; ++i) {
if ((this->specialists[i] & ZT_NETWORKCONFIG_SPECIALIST_TYPE_ACTIVE_BRIDGE) != 0) {
if (ab.length() > 0) {
ab.push_back(',');
}
char tmp2[16] = { 0 };
ab.append(Address(this->specialists[i]).toString(tmp2));
}
}
if (ab.length() > 0) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_ACTIVE_BRIDGES_OLD, ab.c_str())) {
return false;
}
}
}
#endif // ZT_SUPPORT_OLD_STYLE_NETCONF
// Then add binary blobs
if (this->com) {
tmp->clear();
this->com.serialize(*tmp);
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_COM, *tmp)) {
return false;
}
}
tmp->clear();
for (unsigned int i = 0; i < this->capabilityCount; ++i) {
this->capabilities[i].serialize(*tmp);
}
if (tmp->size()) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_CAPABILITIES, *tmp)) {
return false;
}
}
tmp->clear();
for (unsigned int i = 0; i < this->tagCount; ++i) {
this->tags[i].serialize(*tmp);
}
if (tmp->size()) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_TAGS, *tmp)) {
return false;
}
}
tmp->clear();
for (unsigned int i = 0; i < this->certificateOfOwnershipCount; ++i) {
this->certificatesOfOwnership[i].serialize(*tmp);
}
if (tmp->size()) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_CERTIFICATES_OF_OWNERSHIP, *tmp)) {
return false;
}
}
tmp->clear();
for (unsigned int i = 0; i < this->specialistCount; ++i) {
tmp->append((uint64_t)this->specialists[i]);
}
if (tmp->size()) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_SPECIALISTS, *tmp)) {
return false;
}
}
tmp->clear();
for (unsigned int i = 0; i < this->routeCount; ++i) {
reinterpret_cast<const InetAddress*>(&(this->routes[i].target))->serialize(*tmp);
reinterpret_cast<const InetAddress*>(&(this->routes[i].via))->serialize(*tmp);
tmp->append((uint16_t)this->routes[i].flags);
tmp->append((uint16_t)this->routes[i].metric);
}
if (tmp->size()) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_ROUTES, *tmp)) {
return false;
}
}
tmp->clear();
for (unsigned int i = 0; i < this->staticIpCount; ++i) {
this->staticIps[i].serialize(*tmp);
}
if (tmp->size()) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_STATIC_IPS, *tmp)) {
return false;
}
}
if (this->ruleCount) {
tmp->clear();
Capability::serializeRules(*tmp, rules, ruleCount);
if (tmp->size()) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_RULES, *tmp)) {
return false;
}
}
}
tmp->clear();
DNS::serializeDNS(*tmp, &dns);
if (tmp->size()) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_DNS, *tmp)) {
return false;
}
}
if (this->ssoVersion == 0) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_SSO_VERSION, this->ssoVersion)) {
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_SSO_ENABLED, this->ssoEnabled)) {
return false;
}
if (this->ssoEnabled) {
if (this->authenticationURL[0]) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_AUTHENTICATION_URL, this->authenticationURL)) {
return false;
}
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_AUTHENTICATION_EXPIRY_TIME, this->authenticationExpiryTime)) {
return false;
}
}
}
else if (this->ssoVersion == 1) {
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_SSO_VERSION, this->ssoVersion)) {
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_SSO_ENABLED, this->ssoEnabled)) {
return false;
}
// if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_AUTHENTICATION_URL, this->authenticationURL)) return false;
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_ISSUER_URL, this->issuerURL)) {
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_CENTRAL_ENDPOINT_URL, this->centralAuthURL)) {
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_NONCE, this->ssoNonce)) {
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_STATE, this->ssoState)) {
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_CLIENT_ID, this->ssoClientID)) {
return false;
}
if (! d.add(ZT_NETWORKCONFIG_DICT_KEY_SSO_PROVIDER, this->ssoProvider)) {
return false;
}
}
delete tmp;
}
catch (...) {
delete tmp;
throw;
}
return true;
}
bool NetworkConfig::fromDictionary(const Dictionary<ZT_NETWORKCONFIG_DICT_CAPACITY>& d)
{
static const NetworkConfig NIL_NC;
Buffer<ZT_NETWORKCONFIG_DICT_CAPACITY>* tmp = new Buffer<ZT_NETWORKCONFIG_DICT_CAPACITY>();
try {
*this = NIL_NC;
// Fields that are always present, new or old
this->networkId = d.getUI(ZT_NETWORKCONFIG_DICT_KEY_NETWORK_ID, 0);
if (! this->networkId) {
delete tmp;
return false;
}
this->timestamp = d.getUI(ZT_NETWORKCONFIG_DICT_KEY_TIMESTAMP, 0);
this->credentialTimeMaxDelta = d.getUI(ZT_NETWORKCONFIG_DICT_KEY_CREDENTIAL_TIME_MAX_DELTA, 0);
this->revision = d.getUI(ZT_NETWORKCONFIG_DICT_KEY_REVISION, 0);
this->issuedTo = d.getUI(ZT_NETWORKCONFIG_DICT_KEY_ISSUED_TO, 0);
if (! this->issuedTo) {
delete tmp;
return false;
}
this->remoteTraceTarget = d.getUI(ZT_NETWORKCONFIG_DICT_KEY_REMOTE_TRACE_TARGET);
this->remoteTraceLevel = (Trace::Level)d.getUI(ZT_NETWORKCONFIG_DICT_KEY_REMOTE_TRACE_LEVEL);
this->multicastLimit = (unsigned int)d.getUI(ZT_NETWORKCONFIG_DICT_KEY_MULTICAST_LIMIT, 0);
d.get(ZT_NETWORKCONFIG_DICT_KEY_NAME, this->name, sizeof(this->name));
this->mtu = (unsigned int)d.getUI(ZT_NETWORKCONFIG_DICT_KEY_MTU, ZT_DEFAULT_MTU);
if (this->mtu < 1280) {
this->mtu = 1280; // minimum MTU allowed by IPv6 standard and others
}
else if (this->mtu > ZT_MAX_MTU) {
this->mtu = ZT_MAX_MTU;
}
if (d.getUI(ZT_NETWORKCONFIG_DICT_KEY_VERSION, 0) < 6) {
#ifdef ZT_SUPPORT_OLD_STYLE_NETCONF
char tmp2[1024] = { 0 };
// Decode legacy fields if version is old
if (d.getB(ZT_NETWORKCONFIG_DICT_KEY_ENABLE_BROADCAST_OLD)) {
this->flags |= ZT_NETWORKCONFIG_FLAG_ENABLE_BROADCAST;
}
this->flags |= ZT_NETWORKCONFIG_FLAG_ENABLE_IPV6_NDP_EMULATION; // always enable for old-style netconf
this->type = (d.getB(ZT_NETWORKCONFIG_DICT_KEY_PRIVATE_OLD, true)) ? ZT_NETWORK_TYPE_PRIVATE : ZT_NETWORK_TYPE_PUBLIC;
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_IPV4_STATIC_OLD, tmp2, sizeof(tmp2)) > 0) {
char* saveptr = (char*)0;
for (char* f = Utils::stok(tmp2, ",", &saveptr); (f); f = Utils::stok((char*)0, ",", &saveptr)) {
if (this->staticIpCount >= ZT_MAX_ZT_ASSIGNED_ADDRESSES) {
break;
}
InetAddress ip(f);
if (! ip.isNetwork()) {
this->staticIps[this->staticIpCount++] = ip;
}
}
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_IPV6_STATIC_OLD, tmp2, sizeof(tmp2)) > 0) {
char* saveptr = (char*)0;
for (char* f = Utils::stok(tmp2, ",", &saveptr); (f); f = Utils::stok((char*)0, ",", &saveptr)) {
if (this->staticIpCount >= ZT_MAX_ZT_ASSIGNED_ADDRESSES) {
break;
}
InetAddress ip(f);
if (! ip.isNetwork()) {
this->staticIps[this->staticIpCount++] = ip;
}
}
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_CERTIFICATE_OF_MEMBERSHIP_OLD, tmp2, sizeof(tmp2)) > 0) {
this->com.fromString(tmp2);
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_ALLOWED_ETHERNET_TYPES_OLD, tmp2, sizeof(tmp2)) > 0) {
char* saveptr = (char*)0;
for (char* f = Utils::stok(tmp2, ",", &saveptr); (f); f = Utils::stok((char*)0, ",", &saveptr)) {
unsigned int et = Utils::hexStrToUInt(f) & 0xffff;
if ((this->ruleCount + 2) > ZT_MAX_NETWORK_RULES) {
break;
}
if (et > 0) {
this->rules[this->ruleCount].t = (uint8_t)ZT_NETWORK_RULE_MATCH_ETHERTYPE;
this->rules[this->ruleCount].v.etherType = (uint16_t)et;
++this->ruleCount;
}
this->rules[this->ruleCount++].t = (uint8_t)ZT_NETWORK_RULE_ACTION_ACCEPT;
}
}
else {
this->rules[0].t = ZT_NETWORK_RULE_ACTION_ACCEPT;
this->ruleCount = 1;
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_ACTIVE_BRIDGES_OLD, tmp2, sizeof(tmp2)) > 0) {
char* saveptr = (char*)0;
for (char* f = Utils::stok(tmp2, ",", &saveptr); (f); f = Utils::stok((char*)0, ",", &saveptr)) {
this->addSpecialist(Address(Utils::hexStrToU64(f)), ZT_NETWORKCONFIG_SPECIALIST_TYPE_ACTIVE_BRIDGE);
}
}
#else
delete tmp;
return false;
#endif // ZT_SUPPORT_OLD_STYLE_NETCONF
}
else {
// Otherwise we can use the new fields
this->flags = d.getUI(ZT_NETWORKCONFIG_DICT_KEY_FLAGS, 0);
this->type = (ZT_VirtualNetworkType)d.getUI(ZT_NETWORKCONFIG_DICT_KEY_TYPE, (uint64_t)ZT_NETWORK_TYPE_PRIVATE);
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_COM, *tmp)) {
this->com.deserialize(*tmp, 0);
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_CAPABILITIES, *tmp)) {
try {
unsigned int p = 0;
while (p < tmp->size()) {
Capability cap;
p += cap.deserialize(*tmp, p);
this->capabilities[this->capabilityCount++] = cap;
}
}
catch (...) {
}
std::sort(&(this->capabilities[0]), &(this->capabilities[this->capabilityCount]));
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_TAGS, *tmp)) {
try {
unsigned int p = 0;
while (p < tmp->size()) {
Tag tag;
p += tag.deserialize(*tmp, p);
this->tags[this->tagCount++] = tag;
}
}
catch (...) {
}
std::sort(&(this->tags[0]), &(this->tags[this->tagCount]));
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_CERTIFICATES_OF_OWNERSHIP, *tmp)) {
unsigned int p = 0;
while (p < tmp->size()) {
if (certificateOfOwnershipCount < ZT_MAX_CERTIFICATES_OF_OWNERSHIP) {
p += certificatesOfOwnership[certificateOfOwnershipCount++].deserialize(*tmp, p);
}
else {
CertificateOfOwnership foo;
p += foo.deserialize(*tmp, p);
}
}
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_SPECIALISTS, *tmp)) {
unsigned int p = 0;
while ((p + 8) <= tmp->size()) {
if (specialistCount < ZT_MAX_NETWORK_SPECIALISTS) {
this->specialists[this->specialistCount++] = tmp->at<uint64_t>(p);
}
p += 8;
}
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_ROUTES, *tmp)) {
unsigned int p = 0;
while ((p < tmp->size()) && (routeCount < ZT_MAX_NETWORK_ROUTES)) {
p += reinterpret_cast<InetAddress*>(&(this->routes[this->routeCount].target))->deserialize(*tmp, p);
p += reinterpret_cast<InetAddress*>(&(this->routes[this->routeCount].via))->deserialize(*tmp, p);
this->routes[this->routeCount].flags = tmp->at<uint16_t>(p);
p += 2;
this->routes[this->routeCount].metric = tmp->at<uint16_t>(p);
p += 2;
++this->routeCount;
}
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_STATIC_IPS, *tmp)) {
unsigned int p = 0;
while ((p < tmp->size()) && (staticIpCount < ZT_MAX_ZT_ASSIGNED_ADDRESSES)) {
p += this->staticIps[this->staticIpCount++].deserialize(*tmp, p);
}
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_RULES, *tmp)) {
this->ruleCount = 0;
unsigned int p = 0;
Capability::deserializeRules(*tmp, p, this->rules, this->ruleCount, ZT_MAX_NETWORK_RULES);
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_DNS, *tmp)) {
unsigned int p = 0;
DNS::deserializeDNS(*tmp, p, &dns);
}
this->ssoVersion = d.getUI(ZT_NETWORKCONFIG_DICT_KEY_SSO_VERSION, 0ULL);
this->ssoEnabled = d.getB(ZT_NETWORKCONFIG_DICT_KEY_SSO_ENABLED, false);
if (this->ssoVersion == 0) {
// implicit flow
if (this->ssoEnabled) {
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_AUTHENTICATION_URL, this->authenticationURL, (unsigned int)sizeof(this->authenticationURL)) > 0) {
this->authenticationURL[sizeof(this->authenticationURL) - 1] = 0; // ensure null terminated
}
else {
this->authenticationURL[0] = 0;
}
this->authenticationExpiryTime = d.getI(ZT_NETWORKCONFIG_DICT_KEY_AUTHENTICATION_EXPIRY_TIME, 0);
}
else {
this->authenticationURL[0] = 0;
this->authenticationExpiryTime = 0;
}
}
else if (this->ssoVersion == 1) {
// full flow
if (this->ssoEnabled) {
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_AUTHENTICATION_URL, this->authenticationURL, (unsigned int)sizeof(this->authenticationURL)) > 0) {
this->authenticationURL[sizeof(this->authenticationURL) - 1] = 0;
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_ISSUER_URL, this->issuerURL, (unsigned int)sizeof(this->issuerURL)) > 0) {
this->issuerURL[sizeof(this->issuerURL) - 1] = 0;
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_CENTRAL_ENDPOINT_URL, this->centralAuthURL, (unsigned int)sizeof(this->centralAuthURL)) > 0) {
this->centralAuthURL[sizeof(this->centralAuthURL) - 1] = 0;
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_NONCE, this->ssoNonce, (unsigned int)sizeof(this->ssoNonce)) > 0) {
this->ssoNonce[sizeof(this->ssoNonce) - 1] = 0;
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_STATE, this->ssoState, (unsigned int)sizeof(this->ssoState)) > 0) {
this->ssoState[sizeof(this->ssoState) - 1] = 0;
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_CLIENT_ID, this->ssoClientID, (unsigned int)sizeof(this->ssoClientID)) > 0) {
this->ssoClientID[sizeof(this->ssoClientID) - 1] = 0;
}
if (d.get(ZT_NETWORKCONFIG_DICT_KEY_SSO_PROVIDER, this->ssoProvider, (unsigned int)(sizeof(this->ssoProvider))) > 0) {
this->ssoProvider[sizeof(this->ssoProvider) - 1] = 0;
}
else {
strncpy(this->ssoProvider, "default", sizeof(this->ssoProvider));
this->ssoProvider[sizeof(this->ssoProvider) - 1] = 0;
}
}
else {
this->authenticationURL[0] = 0;
this->authenticationExpiryTime = 0;
this->centralAuthURL[0] = 0;
this->ssoNonce[0] = 0;
this->ssoState[0] = 0;
this->ssoClientID[0] = 0;
this->issuerURL[0] = 0;
this->ssoProvider[0] = 0;
}
}
}
// printf("~~~\n%s\n~~~\n",d.data());
// dump();
// printf("~~~\n");
delete tmp;
return true;
}
catch (...) {
delete tmp;
return false;
}
}
} // namespace ZeroTier