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/*
* 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 "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);
std::set<unsigned int> NetworkConfig::allowedEtherTypes() const
{
std::set<unsigned int> ets;
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.insert(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));
_multicastPrefixBits = Utils::hexStrToUInt(d.get(ZT_NETWORKCONFIG_DICT_KEY_MULTICAST_PREFIX_BITS,zero).c_str());
_multicastDepth = Utils::hexStrToUInt(d.get(ZT_NETWORKCONFIG_DICT_KEY_MULTICAST_DEPTH,zero).c_str());
_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());
if (!_multicastPrefixBits)
_multicastPrefixBits = ZT_DEFAULT_MULTICAST_PREFIX_BITS;
if (!_multicastDepth)
_multicastDepth = ZT_DEFAULT_MULTICAST_DEPTH;
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> ipAddrs2(Utils::split(ipAddrs.c_str(),",","",""));
for(std::vector<std::string>::const_iterator ipstr(ipAddrs2.begin());ipstr!=ipAddrs2.end();++ipstr) {
InetAddress addr(*ipstr);
switch(addr.type()) {
case InetAddress::TYPE_IPV4:
if ((!addr.netmaskBits())||(addr.netmaskBits() > 32))
throw std::invalid_argument("static IP address fields contain one or more invalid IP/netmask entries");
break;
case InetAddress::TYPE_IPV6:
if ((!addr.netmaskBits())||(addr.netmaskBits() > 128))
throw std::invalid_argument("static IP address fields contain one or more invalid IP/netmask entries");
break;
default:
throw std::invalid_argument("static IP address fields contain one or more invalid IP/netmask entries");
}
_staticIps.insert(addr);
}
std::vector<std::string> ab(Utils::split(d.get(ZT_NETWORKCONFIG_DICT_KEY_ACTIVE_BRIDGES,"").c_str(),",","",""));
for(std::vector<std::string>::const_iterator a(ab.begin());a!=ab.end();++a) {
if (a->length() == ZT_ADDRESS_LENGTH_HEX) {
Address tmp(*a);
if (!tmp.isReserved())
_activeBridges.insert(tmp);
}
}
Dictionary mr(d.get(ZT_NETWORKCONFIG_DICT_KEY_MULTICAST_RATES,std::string()));
for(Dictionary::const_iterator i(mr.begin());i!=mr.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
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