mirror of
https://github.com/RetroShare/RetroShare.git
synced 2025-05-12 11:02:30 -04:00
Reworking of networking code to enable Net Restart.
* Stun code now runs continually - to check external network state. * Udpsorter controls DHT stun is on/off. (via p3ConnectMgr) * added code to enable threads to join/restart * enabled NetRestart for UDP and TCP. * tweaked networking code for faster startup (now ~30 seconds - can still be improved). * tweaked debug messages for testing networking * Added test for checking external IP address determination. git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@1492 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
drbob
parent
d5581629ef
commit
2bf94b909a
22 changed files with 774 additions and 81 deletions
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@ -37,11 +37,20 @@ const int rsudpsorterzone = 28477;
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static const int STUN_TTL = 64;
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#define TOU_STUN_MIN_PEERS 5
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/*
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* #define DEBUG_UDP_SORTER 1
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*/
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const int32_t TOU_STUN_MAX_FAIL_COUNT = 3; /* 3 tries (could be higher?) */
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const int32_t TOU_STUN_MAX_SEND_RATE = 5; /* every 5 seconds */
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const int32_t TOU_STUN_MAX_RECV_RATE = 25; /* every 25 seconds */
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const int32_t TOU_STUN_ADDR_MAX_AGE = 120; /* 2 minutes */
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UdpSorter::UdpSorter(struct sockaddr_in &local)
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:udpLayer(NULL), laddr(local), eaddrKnown(false), eaddrStable(false),
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mStunKeepAlive(false), mStunLastRecv(0), mStunLastSend(0)
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@ -54,6 +63,12 @@ UdpSorter::UdpSorter(struct sockaddr_in &local)
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return;
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}
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bool UdpSorter::resetAddress(struct sockaddr_in &local)
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{
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return udpLayer->reset(local);
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}
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/* higher level interface */
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void UdpSorter::recvPkt(void *data, int size, struct sockaddr_in &from)
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@ -148,7 +163,9 @@ int UdpSorter::status(std::ostream &out)
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int UdpSorter::openSocket()
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{
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udpLayer = new UdpLayer(this, laddr);
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udpLayer->start();
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// start is called by udpLayer now, for consistency
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// with reset!
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//udpLayer->start();
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return 1;
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}
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@ -301,8 +318,19 @@ bool UdpSorter::locked_handleStunPkt(void *data, int size, struct sockaddr_in &f
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bool UdpSorter::externalAddr(struct sockaddr_in &external, uint8_t &stable)
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{
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RsStackMutex stack(sortMtx); /********** LOCK MUTEX *********/
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if (eaddrKnown)
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{
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/* address timeout */
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if (time(NULL) - eaddrTime > TOU_STUN_ADDR_MAX_AGE)
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{
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std::cerr << "UdpSorter::externalAddr() eaddr expired";
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std::cerr << std::endl;
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return false;
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}
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external = eaddr;
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if (eaddrStable)
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@ -310,8 +338,15 @@ bool UdpSorter::externalAddr(struct sockaddr_in &external, uint8_t &stable)
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else
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stable = 0;
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std::cerr << "UdpSorter::externalAddr() eaddr:" << inet_ntoa(external.sin_addr);
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std::cerr << ":" << ntohs(external.sin_port) << " stable: " << (int) stable;
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std::cerr << std::endl;
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return true;
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}
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std::cerr << "UdpSorter::externalAddr() eaddr unknown";
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std::cerr << std::endl;
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return false;
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}
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@ -503,14 +538,8 @@ bool UdpStun_isStunPacket(void *data, int size)
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/******************************* STUN Handling ********************************
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* The KeepAlive part - slightly more complicated
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*
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*
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*/
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const int32_t TOU_STUN_MAX_FAIL_COUNT = 10; /* 10 tries (could be higher?) */
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const int32_t TOU_STUN_MAX_SEND_RATE = 5; /* every 5 seconds */
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const int32_t TOU_STUN_MAX_RECV_RATE = 25; /* every 25 seconds */
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/******************************* STUN Handling ********************************/
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bool UdpSorter::setStunKeepAlive(uint32_t required)
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@ -536,12 +565,13 @@ bool UdpSorter::addStunPeer(const struct sockaddr_in &remote, const char *pee
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std::cerr << std::endl;
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#endif
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storeStunPeer(remote, peerid);
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sortMtx.lock(); /********** LOCK MUTEX *********/
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bool needStun = (!eaddrKnown);
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sortMtx.unlock(); /******** UNLOCK MUTEX *********/
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storeStunPeer(remote, peerid, needStun);
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if (needStun)
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{
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doStun(remote);
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@ -550,7 +580,7 @@ bool UdpSorter::addStunPeer(const struct sockaddr_in &remote, const char *pee
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return true;
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}
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bool UdpSorter::storeStunPeer(const struct sockaddr_in &remote, const char *peerid)
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bool UdpSorter::storeStunPeer(const struct sockaddr_in &remote, const char *peerid, bool sent)
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{
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#ifdef DEBUG_UDP_SORTER
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@ -571,11 +601,22 @@ bool UdpSorter::storeStunPeer(const struct sockaddr_in &remote, const char *p
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std::cerr << std::endl;
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#endif
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/* already there */
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if (sent)
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{
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it->failCount += 1;
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it->lastsend = time(NULL);
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}
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return false;
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}
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}
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TouStunPeer peer(std::string(peerid), remote);
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if (sent)
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{
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peer.failCount += 1;
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peer.lastsend = time(NULL);
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}
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mStunList.push_back(peer);
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#ifdef DEBUG_UDP_SORTER
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@ -704,10 +745,7 @@ bool UdpSorter::locked_recvdStun(const struct sockaddr_in &remote, const stru
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locked_printStunList();
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#endif
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if (!eaddrKnown)
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{
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locked_checkExternalAddress();
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}
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locked_checkExternalAddress();
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return found;
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}
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@ -722,13 +760,23 @@ bool UdpSorter::locked_checkExternalAddress()
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bool found1 = false;
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bool found2 = false;
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std::list<TouStunPeer>::iterator it;
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std::list<TouStunPeer>::iterator p1;
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std::list<TouStunPeer>::iterator p2;
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for(it = mStunList.begin(); it != mStunList.end(); it++)
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time_t now = time(NULL);
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/* iterator backwards - as these are the most recent */
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std::list<TouStunPeer>::reverse_iterator it;
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std::list<TouStunPeer>::reverse_iterator p1;
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std::list<TouStunPeer>::reverse_iterator p2;
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for(it = mStunList.rbegin(); it != mStunList.rend(); it++)
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{
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if (it->response && isExternalNet(&(it->eaddr.sin_addr)))
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/* check:
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1) have response.
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2) have eaddr.
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3) no fails.
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4) recent age.
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*/
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time_t age = (now - it->lastsend);
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if (it->response && isExternalNet(&(it->eaddr.sin_addr)) &&
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(it->failCount == 0) && (age < TOU_STUN_ADDR_MAX_AGE))
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{
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if (!found1)
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{
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@ -757,6 +805,7 @@ bool UdpSorter::locked_checkExternalAddress()
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}
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eaddrKnown = true;
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eaddr = p1->eaddr;
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eaddrTime = now;
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#ifdef DEBUG_UDP_SORTER
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std::cerr << "UdpSorter::locked_checkExternalAddress() Found State:";
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@ -803,6 +852,36 @@ bool UdpSorter::locked_printStunList()
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return true;
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}
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bool UdpSorter::getStunPeer(int idx, std::string &id,
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struct sockaddr_in &remote, struct sockaddr_in &eaddr,
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uint32_t &failCount, time_t &lastSend)
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{
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RsStackMutex stack(sortMtx); /********** LOCK MUTEX *********/
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std::list<TouStunPeer>::iterator it;
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int i;
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for(i=0, it=mStunList.begin(); (i<idx) && (it!=mStunList.end()); it++, i++);
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if (it != mStunList.end())
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{
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id = RsUtil::BinToHex(it->id);
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remote = it->remote;
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eaddr = it->eaddr;
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failCount = it->failCount;
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lastSend = it->lastsend;
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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 UdpSorter::needStunPeers()
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{
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RsStackMutex stack(sortMtx); /********** LOCK MUTEX *********/
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return (mStunList.size() < TOU_STUN_MIN_PEERS);
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}
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