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Codechange: allow Connect() to bind to a local address

This commit is contained in:
Patric Stout 2021-04-28 10:55:35 +02:00 committed by Patric Stout
parent 695e1493c9
commit 55eed246b8
2 changed files with 16 additions and 4 deletions
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3
src/network/core/tcp.h
View File

@ -98,6 +98,7 @@ private:
std::chrono::steady_clock::time_point last_attempt; ///< Time we last tried to connect.
std::string connection_string; ///< Current address we are connecting to (before resolving).
NetworkAddress bind_address; ///< Address we're binding to, if any.
void Resolve();
void OnResolved(addrinfo *ai);
@ -113,7 +114,7 @@ private:
public:
TCPConnecter() {};
TCPConnecter(const std::string &connection_string, uint16 default_port);
TCPConnecter(const std::string &connection_string, uint16 default_port, NetworkAddress bind_address = {});
virtual ~TCPConnecter();
/**

17
src/network/core/tcp_connect.cpp
View File

@ -24,10 +24,13 @@
static std::vector<TCPConnecter *> _tcp_connecters;
/**
* Create a new connecter for the given address
* @param connection_string the address to connect to
* Create a new connecter for the given address.
* @param connection_string The address to connect to.
* @param default_port If not indicated in connection_string, what port to use.
* @param bind_address The local bind address to use. Defaults to letting the OS find one.
*/
TCPConnecter::TCPConnecter(const std::string &connection_string, uint16 default_port)
TCPConnecter::TCPConnecter(const std::string &connection_string, uint16 default_port, NetworkAddress bind_address) :
bind_address(bind_address)
{
this->connection_string = NormalizeConnectionString(connection_string, default_port);
@ -96,6 +99,14 @@ void TCPConnecter::Connect(addrinfo *address)
return;
}
if (this->bind_address.GetPort() > 0) {
if (bind(sock, (const sockaddr *)this->bind_address.GetAddress(), this->bind_address.GetAddressLength()) != 0) {
Debug(net, 1, "Could not bind socket on {}: {}", this->bind_address.GetAddressAsString(), NetworkError::GetLast().AsString());
closesocket(sock);
return;
}
}
if (!SetNoDelay(sock)) {
Debug(net, 1, "Setting TCP_NODELAY failed: {}", NetworkError::GetLast().AsString());
}