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Copy pathNetworkConfig.cpp
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225 lines (192 loc) · 7.62 KB
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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 <algorithm>
#include "NetworkConfig.hpp"
#include "ScopedPtr.hpp"
namespace ZeroTier {
bool NetworkConfig::toDictionary(Dictionary<ZT_NETWORKCONFIG_DICT_CAPACITY> &d,bool includeLegacy) const
{
ScopedPtr< Buffer<ZT_NETWORKCONFIG_DICT_CAPACITY> > tmp(new Buffer<ZT_NETWORKCONFIG_DICT_CAPACITY>());
char tmp2[128];
d.clear();
// Try to put the more human-readable fields first
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_NETWORK_ID,this->networkId)) return false;
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_TIMESTAMP,this->timestamp)) return false;
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_CREDENTIAL_TIME_MAX_DELTA,this->credentialTimeMaxDelta)) return false;
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_REVISION,this->revision)) return false;
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_ISSUED_TO,this->issuedTo.toString(tmp2))) return false;
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_REMOTE_TRACE_TARGET,this->remoteTraceTarget.toString(tmp2))) return false;
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_REMOTE_TRACE_LEVEL,(uint64_t)this->remoteTraceLevel)) return false;
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_FLAGS,this->flags)) return false;
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_MULTICAST_LIMIT,(uint64_t)this->multicastLimit)) return false;
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_TYPE,(uint64_t)this->type)) return false;
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_NAME,this->name)) return false;
if (!d.add(ZT_NETWORKCONFIG_DICT_KEY_MTU,(uint64_t)this->mtu)) return false;
// 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;
}
}
return true;
}
bool NetworkConfig::fromDictionary(const Dictionary<ZT_NETWORKCONFIG_DICT_CAPACITY> &d)
{
static const NetworkConfig NIL_NC;
ScopedPtr< 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)
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)
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) {
return false;
} 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);
}
}
return true;
} catch ( ... ) {
return false;
}
}
} // namespace ZeroTier