diff options
Diffstat (limited to 'osdep')
| -rw-r--r-- | osdep/Binder.hpp | 109 |
1 files changed, 17 insertions, 92 deletions
diff --git a/osdep/Binder.hpp b/osdep/Binder.hpp index b1fe5921..040f3e46 100644 --- a/osdep/Binder.hpp +++ b/osdep/Binder.hpp @@ -88,11 +88,7 @@ class Binder : NonCopyable private: struct _Binding { - _Binding() : - udpSock((PhySocket *)0), - tcpListenSock((PhySocket *)0), - address() {} - + _Binding() : udpSock((PhySocket *)0),tcpListenSock((PhySocket *)0) {} PhySocket *udpSock; PhySocket *tcpListenSock; InetAddress address; @@ -374,93 +370,6 @@ public: } /** - * Send a UDP packet from the specified local interface, or all - * - * Unfortunately even by examining the routing table there is no ultimately - * robust way to tell where we might reach another host that works in all - * environments. As a result, we send packets with null (wildcard) local - * addresses from *every* bound interface. - * - * These are typically initial HELLOs, path probes, etc., since normal - * conversations will have a local endpoint address. So the cost is low and - * if the peer is not reachable via that route then the packet will go - * nowhere and nothing will happen. - * - * It will of course only send via interface bindings of the same socket - * family. No point in sending V4 via V6 or vice versa. - * - * In any case on most hosts there's only one or two interfaces that we - * will use, so none of this is particularly costly. - * - * @param local Local interface address or null address for 'all' - * @param remote Remote address - * @param data Data to send - * @param len Length of data - * @param v4ttl If non-zero, send this packet with the specified IP TTL (IPv4 only) - * @return -1 == local doesn't match any bound address, 0 == send failure, 1 == send successful - */ - template<typename PHY_HANDLER_TYPE> - inline int udpSend(Phy<PHY_HANDLER_TYPE> &phy,const InetAddress &local,const InetAddress &remote,const void *data,unsigned int len,unsigned int v4ttl = 0) const - { - PhySocket *s; - typename std::vector<_Binding>::const_iterator i; - int result; - Mutex::Lock _l(_lock); - - if (remote.ss_family == AF_INET) { - if (local) { - for(i=_bindings.begin();i!=_bindings.end();++i) { - if ( - (i->address.ss_family == AF_INET) && - (reinterpret_cast<const struct sockaddr_in *>(&(i->address))->sin_port == reinterpret_cast<const struct sockaddr_in *>(&local)->sin_port) && - (reinterpret_cast<const struct sockaddr_in *>(&(i->address))->sin_addr.s_addr == reinterpret_cast<const struct sockaddr_in *>(&local)->sin_addr.s_addr) - ) - { - s = i->udpSock; - goto Binder_send_packet; - } - } - } else { - for(i=_bindings.begin();i!=_bindings.end();++i) { - if (i->address.ss_family == AF_INET) { - s = i->udpSock; - goto Binder_send_packet; - } - } - } - } else { - if (local) { - for(i=_bindings.begin();i!=_bindings.end();++i) { - if ( - (i->address.ss_family == AF_INET6) && - (reinterpret_cast<const struct sockaddr_in6 *>(&(i->address))->sin6_port == reinterpret_cast<const struct sockaddr_in6 *>(&local)->sin6_port) && - (!memcmp(reinterpret_cast<const struct sockaddr_in6 *>(&(i->address))->sin6_addr.s6_addr,reinterpret_cast<const struct sockaddr_in6 *>(&local)->sin6_addr.s6_addr,16)) - ) - { - s = i->udpSock; - goto Binder_send_packet; - } - } - } else { - for(i=_bindings.begin();i!=_bindings.end();++i) { - if (i->address.ss_family == AF_INET6) { - s = i->udpSock; - goto Binder_send_packet; - } - } - } - } - - return -1; - -Binder_send_packet: - if (v4ttl) phy.setIp4UdpTtl(s,v4ttl); - result = (int)phy.udpSend(s,reinterpret_cast<const struct sockaddr *>(&remote),data,len); - if (v4ttl) phy.setIp4UdpTtl(s,255); - return result; - } - - /** * @return All currently bound local interface addresses */ inline std::vector<InetAddress> allBoundLocalInterfaceAddresses() const @@ -473,6 +382,22 @@ Binder_send_packet: } /** + * Send from all bound UDP sockets + */ + template<typename PHY_HANDLER_TYPE> + inline bool udpSendAll(Phy<PHY_HANDLER_TYPE> &phy,const struct sockaddr_storage *addr,const void *data,unsigned int len,unsigned int ttl) + { + bool r = false; + Mutex::Lock _l(_lock); + for(std::vector<_Binding>::const_iterator b(_bindings.begin());b!=_bindings.end();++b) { + if (ttl) phy.setIp4UdpTtl(b->udpSock,ttl); + if (phy.udpSend(b->udpSock,(const struct sockaddr *)addr,data,len)) r = true; + if (ttl) phy.setIp4UdpTtl(b->udpSock,255); + } + return r; + } + + /** * @param addr Address to check * @return True if this is a bound local interface address */ |