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Added Code to detect Symmetric NAT (BAD!) Firewalls.

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git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@361 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
drbob 2008-02-28 15:58:54 +00:00
parent 6dd3d30d8e
commit 2dc2954f40
14 changed files with 257 additions and 43 deletions
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15
libretroshare/src/tcponudp/udpsorter.h
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@ -49,13 +49,14 @@ class TouStunPeer
{
public:
TouStunPeer()
:lastsend(0), failCount(0) { return; }
:response(false), lastsend(0), failCount(0) { return; }
TouStunPeer(std::string id_in, const struct sockaddr_in &addr)
:id(id_in), remote(addr), lastsend(0), failCount(0) { return; }
:id(id_in), remote(addr), response(false), lastsend(0), failCount(0) { return; }
std::string id;
struct sockaddr_in remote;
struct sockaddr_in remote, eaddr;
bool response;
time_t lastsend;
uint32_t failCount;
};
@ -75,7 +76,7 @@ bool setStunKeepAlive(uint32_t required);
bool addStunPeer(const struct sockaddr_in &remote, const char *peerid);
bool checkStunKeepAlive();
bool externalAddr(struct sockaddr_in &remote);
bool externalAddr(struct sockaddr_in &remote, uint8_t &stable);
/* Packet IO */
/* pass-through send packets */
@ -108,7 +109,9 @@ bool generate_stun_pkt(void *stun_pkt, int *len);
/* stun keepAlive */
bool locked_printStunList();
bool locked_recvdStun(const struct sockaddr_in &remote);
bool locked_recvdStun(const struct sockaddr_in &remote, const struct sockaddr_in &extaddr);
bool locked_checkExternalAddress();
bool storeStunPeer(const struct sockaddr_in &remote, const char *peerid);
UdpLayer *udpLayer;
@ -116,8 +119,10 @@ bool storeStunPeer(const struct sockaddr_in &remote, const char *peerid);
RsMutex sortMtx; /* for all class data (below) */
struct sockaddr_in laddr; /* local addr */
struct sockaddr_in eaddr; /* external addr */
bool eaddrKnown;
bool eaddrStable; /* if true then usable. if false -> Symmettric NAT */
bool mStunKeepAlive;
time_t mStunLastRecv;