mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2025-04-26 17:03:43 +02:00
60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
/*
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* Copyright (c)2013-2020 ZeroTier, Inc.
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file in the project's root directory.
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*
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* Change Date: 2024-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2.0 of the Apache License.
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*/
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/****/
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#include "Path.hpp"
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#include "RuntimeEnvironment.hpp"
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#include "Node.hpp"
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namespace ZeroTier {
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bool Path::send(const RuntimeEnvironment *RR,void *tPtr,const void *data,unsigned int len,int64_t now)
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{
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if (RR->node->putPacket(tPtr,_localSocket,_addr,data,len)) {
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_lastOut = now;
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return true;
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}
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return false;
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}
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bool Path::isAddressValidForPath(const InetAddress &a)
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{
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if ((a.ss_family == AF_INET)||(a.ss_family == AF_INET6)) {
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switch(a.ipScope()) {
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/* Note: we don't do link-local at the moment. Unfortunately these
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* cause several issues. The first is that they usually require a
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* device qualifier, which we don't handle yet and can't portably
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* push in PUSH_DIRECT_PATHS. The second is that some OSes assign
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* these very ephemerally or otherwise strangely. So we'll use
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* private, pseudo-private, shared (e.g. carrier grade NAT), or
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* global IP addresses. */
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case InetAddress::IP_SCOPE_PRIVATE:
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case InetAddress::IP_SCOPE_PSEUDOPRIVATE:
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case InetAddress::IP_SCOPE_SHARED:
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case InetAddress::IP_SCOPE_GLOBAL:
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if (a.ss_family == AF_INET6) {
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// TEMPORARY HACK: for now, we are going to blacklist he.net IPv6
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// tunnels due to very spotty performance and low MTU issues over
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// these IPv6 tunnel links.
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const uint8_t *ipd = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(&a)->sin6_addr.s6_addr);
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if ((ipd[0] == 0x20)&&(ipd[1] == 0x01)&&(ipd[2] == 0x04)&&(ipd[3] == 0x70))
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return false;
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}
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return true;
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default:
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return false;
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}
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}
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return false;
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}
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} // namespace ZeroTier
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