You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
182 lines
6.9 KiB
182 lines
6.9 KiB
/* |
|
* ZeroTier One - Global Peer to Peer Ethernet |
|
* Copyright (C) 2011-2014 ZeroTier Networks LLC |
|
* |
|
* This program is free software: you can redistribute it and/or modify |
|
* it under the terms of the GNU General Public License as published by |
|
* the Free Software Foundation, either version 3 of the License, or |
|
* (at your option) any later version. |
|
* |
|
* This program is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
* GNU General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU General Public License |
|
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
* |
|
* -- |
|
* |
|
* ZeroTier may be used and distributed under the terms of the GPLv3, which |
|
* are available at: http://www.gnu.org/licenses/gpl-3.0.html |
|
* |
|
* If you would like to embed ZeroTier into a commercial application or |
|
* redistribute it in a modified binary form, please contact ZeroTier Networks |
|
* LLC. Start here: http://www.zerotier.com/ |
|
*/ |
|
|
|
#include <stdint.h> |
|
|
|
#include "NetworkConfig.hpp" |
|
#include "Utils.hpp" |
|
|
|
namespace ZeroTier { |
|
|
|
// This is fast enough for things like Apple's mDNS spam, so it should serve |
|
// as a good default for your average network. It's 64 bytes per second, with |
|
// a starting and max balance of 64k. |
|
const NetworkConfig::MulticastRate NetworkConfig::DEFAULT_MULTICAST_RATE(32768,32768,64); |
|
|
|
SharedPtr<NetworkConfig> NetworkConfig::createTestNetworkConfig(const Address &self) |
|
{ |
|
SharedPtr<NetworkConfig> nc(new NetworkConfig()); |
|
|
|
memset(nc->_etWhitelist,0,sizeof(nc->_etWhitelist)); |
|
nc->_etWhitelist[0] |= 1; // allow all |
|
nc->_nwid = ZT_TEST_NETWORK_ID; |
|
nc->_timestamp = Utils::now(); |
|
nc->_issuedTo = self; |
|
nc->_multicastLimit = ZT_MULTICAST_DEFAULT_LIMIT; |
|
nc->_allowPassiveBridging = false; |
|
nc->_private = false; |
|
nc->_enableBroadcast = true; |
|
nc->_name = "ZT_TEST_NETWORK"; |
|
nc->_description = "Built-in dummy test network"; |
|
|
|
// Make up a V4 IP from 'self' in the 10.0.0.0/8 range -- no |
|
// guarantee of uniqueness but collisions are unlikely. |
|
uint32_t ip = (uint32_t)((self.toInt() & 0x00ffffff) | 0x0a000000); // 10.x.x.x |
|
if ((ip & 0x000000ff) == 0x000000ff) ip ^= 0x00000001; // but not ending in .255 |
|
if ((ip & 0x000000ff) == 0x00000000) ip ^= 0x00000001; // or .0 |
|
nc->_staticIps.push_back(InetAddress(Utils::hton(ip),8)); |
|
|
|
return nc; |
|
} |
|
|
|
std::vector<unsigned int> NetworkConfig::allowedEtherTypes() const |
|
{ |
|
std::vector<unsigned int> ets; |
|
if ((_etWhitelist[0] & 1) != 0) { |
|
ets.push_back(0); |
|
} else { |
|
for(unsigned int i=0;i<sizeof(_etWhitelist);++i) { |
|
if (_etWhitelist[i]) { |
|
unsigned char b = _etWhitelist[i]; |
|
unsigned int et = i * 8; |
|
while (b) { |
|
if ((b & 1)) |
|
ets.push_back(et); |
|
b >>= 1; |
|
++et; |
|
} |
|
} |
|
} |
|
} |
|
return ets; |
|
} |
|
|
|
const NetworkConfig::MulticastRate &NetworkConfig::multicastRate(const MulticastGroup &mg) const |
|
throw() |
|
{ |
|
std::map<MulticastGroup,MulticastRate>::const_iterator r(_multicastRates.find(mg)); |
|
if (r == _multicastRates.end()) { |
|
r = _multicastRates.find(MulticastGroup()); // zero MG signifies network's default rate |
|
if (r == _multicastRates.end()) |
|
return DEFAULT_MULTICAST_RATE; // neither specific nor default found in network config |
|
} |
|
return r->second; |
|
} |
|
|
|
void NetworkConfig::_fromDictionary(const Dictionary &d) |
|
{ |
|
static const std::string zero("0"); |
|
static const std::string one("1"); |
|
|
|
// NOTE: d.get(name) throws if not found, d.get(name,default) returns default |
|
|
|
memset(_etWhitelist,0,sizeof(_etWhitelist)); |
|
std::vector<std::string> ets(Utils::split(d.get(ZT_NETWORKCONFIG_DICT_KEY_ALLOWED_ETHERNET_TYPES).c_str(),",","","")); |
|
for(std::vector<std::string>::const_iterator et(ets.begin());et!=ets.end();++et) { |
|
unsigned int tmp = Utils::hexStrToUInt(et->c_str()) & 0xffff; |
|
_etWhitelist[tmp >> 3] |= (1 << (tmp & 7)); |
|
} |
|
|
|
_nwid = Utils::hexStrToU64(d.get(ZT_NETWORKCONFIG_DICT_KEY_NETWORK_ID).c_str()); |
|
if (!_nwid) |
|
throw std::invalid_argument("configuration contains zero network ID"); |
|
|
|
_timestamp = Utils::hexStrToU64(d.get(ZT_NETWORKCONFIG_DICT_KEY_TIMESTAMP).c_str()); |
|
_issuedTo = Address(d.get(ZT_NETWORKCONFIG_DICT_KEY_ISSUED_TO)); |
|
_multicastLimit = Utils::hexStrToUInt(d.get(ZT_NETWORKCONFIG_DICT_KEY_MULTICAST_LIMIT,zero).c_str()); |
|
if (_multicastLimit == 0) _multicastLimit = ZT_MULTICAST_DEFAULT_LIMIT; |
|
_allowPassiveBridging = (Utils::hexStrToUInt(d.get(ZT_NETWORKCONFIG_DICT_KEY_ALLOW_PASSIVE_BRIDGING,zero).c_str()) != 0); |
|
_private = (Utils::hexStrToUInt(d.get(ZT_NETWORKCONFIG_DICT_KEY_PRIVATE,one).c_str()) != 0); |
|
_enableBroadcast = (Utils::hexStrToUInt(d.get(ZT_NETWORKCONFIG_DICT_KEY_ENABLE_BROADCAST,one).c_str()) != 0); |
|
_name = d.get(ZT_NETWORKCONFIG_DICT_KEY_NAME); |
|
_description = d.get(ZT_NETWORKCONFIG_DICT_KEY_DESC,std::string()); |
|
|
|
// In dictionary IPs are split into V4 and V6 addresses, but we don't really |
|
// need that so merge them here. |
|
std::string ipAddrs(d.get(ZT_NETWORKCONFIG_DICT_KEY_IPV4_STATIC,std::string())); |
|
{ |
|
std::string v6s(d.get(ZT_NETWORKCONFIG_DICT_KEY_IPV6_STATIC,std::string())); |
|
if (v6s.length()) { |
|
if (ipAddrs.length()) |
|
ipAddrs.push_back(','); |
|
ipAddrs.append(v6s); |
|
} |
|
} |
|
|
|
std::vector<std::string> ipAddrsSplit(Utils::split(ipAddrs.c_str(),",","","")); |
|
for(std::vector<std::string>::const_iterator ipstr(ipAddrsSplit.begin());ipstr!=ipAddrsSplit.end();++ipstr) { |
|
InetAddress addr(*ipstr); |
|
switch(addr.type()) { |
|
case InetAddress::TYPE_IPV4: |
|
if ((!addr.netmaskBits())||(addr.netmaskBits() > 32)) |
|
continue; |
|
break; |
|
case InetAddress::TYPE_IPV6: |
|
if ((!addr.netmaskBits())||(addr.netmaskBits() > 128)) |
|
continue; |
|
break; |
|
default: // ignore unrecognized address types or junk/empty fields |
|
continue; |
|
} |
|
_staticIps.push_back(addr); |
|
} |
|
std::sort(_staticIps.begin(),_staticIps.end()); |
|
std::unique(_staticIps.begin(),_staticIps.end()); |
|
|
|
std::vector<std::string> activeBridgesSplit(Utils::split(d.get(ZT_NETWORKCONFIG_DICT_KEY_ACTIVE_BRIDGES,"").c_str(),",","","")); |
|
for(std::vector<std::string>::const_iterator a(activeBridgesSplit.begin());a!=activeBridgesSplit.end();++a) { |
|
if (a->length() == ZT_ADDRESS_LENGTH_HEX) { // ignore empty or garbage fields |
|
Address tmp(*a); |
|
if (!tmp.isReserved()) |
|
_activeBridges.push_back(tmp); |
|
} |
|
} |
|
std::sort(_activeBridges.begin(),_activeBridges.end()); |
|
std::unique(_activeBridges.begin(),_activeBridges.end()); |
|
|
|
Dictionary multicastRateEntries(d.get(ZT_NETWORKCONFIG_DICT_KEY_MULTICAST_RATES,std::string())); |
|
for(Dictionary::const_iterator i(multicastRateEntries.begin());i!=multicastRateEntries.end();++i) { |
|
std::vector<std::string> params(Utils::split(i->second.c_str(),",","","")); |
|
if (params.size() >= 3) |
|
_multicastRates[MulticastGroup(i->first)] = MulticastRate(Utils::hexStrToUInt(params[0].c_str()),Utils::hexStrToUInt(params[1].c_str()),Utils::hexStrToUInt(params[2].c_str())); |
|
} |
|
|
|
_com.fromString(d.get(ZT_NETWORKCONFIG_DICT_KEY_CERTIFICATE_OF_MEMBERSHIP,std::string())); |
|
} |
|
|
|
} // namespace ZeroTier |
|
|
|
|