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Code Releases Activity

Improve NAT-T hint string handling

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This commit is contained in:
Yihong Wu
2021-12-15 00:54:40 +08:00
parent f6edb5e165
commit 68dc4e23d8
12 changed files with 170 additions and 52 deletions
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18
src/Cedar/Protocol.c
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@ -6306,9 +6306,9 @@ SOCK *ClientConnectGetSocket(CONNECTION *c, bool additional_connect)
{
// If additional_connect == false, enable trying to NAT-T connection
// If additional_connect == true, follow the IsRUDPSession setting in this session
sock = TcpIpConnectEx(hostname, c->ServerPort,
sock = TcpIpConnectEx2(hostname, c->ServerPort,
(bool *)cancel_flag, c->hWndForUI, &nat_t_err, (additional_connect ? (!sess->IsRUDPSession) : false),
true, &resolved_ip);
true, o->HintStr, &resolved_ip);
}
else
{
@ -6444,23 +6444,31 @@ UINT ProxyCodeToCedar(UINT code)
// TCP connection function
SOCK *TcpConnectEx3(char *hostname, UINT port, UINT timeout, bool *cancel_flag, void *hWnd, bool no_nat_t, UINT *nat_t_error_code, bool try_start_ssl, IP *ret_ip)
{
return TcpConnectEx4(hostname, port, timeout, cancel_flag, hWnd, no_nat_t, nat_t_error_code, try_start_ssl, NULL, ret_ip);
}
SOCK *TcpConnectEx4(char *hostname, UINT port, UINT timeout, bool *cancel_flag, void *hWnd, bool no_nat_t, UINT *nat_t_error_code, bool try_start_ssl, char *hint_str, IP *ret_ip)
{
#ifdef OS_WIN32
if (hWnd == NULL)
{
#endif // OS_WIN32
return ConnectEx4(hostname, port, timeout, cancel_flag, (no_nat_t ? NULL : VPN_RUDP_SVC_NAME), nat_t_error_code, try_start_ssl, true, ret_ip);
return ConnectEx5(hostname, port, timeout, cancel_flag, (no_nat_t ? NULL : VPN_RUDP_SVC_NAME), nat_t_error_code, try_start_ssl, true, hint_str, ret_ip);
#ifdef OS_WIN32
}
else
{
return WinConnectEx3((HWND)hWnd, hostname, port, timeout, 0, NULL, NULL, nat_t_error_code, (no_nat_t ? NULL : VPN_RUDP_SVC_NAME), try_start_ssl);
return WinConnectEx4((HWND)hWnd, hostname, port, timeout, 0, NULL, NULL, nat_t_error_code, (no_nat_t ? NULL : VPN_RUDP_SVC_NAME), try_start_ssl, hint_str);
}
#endif // OS_WIN32
}
// Connect with TCP/IP
SOCK *TcpIpConnectEx(char *hostname, UINT port, bool *cancel_flag, void *hWnd, UINT *nat_t_error_code, bool no_nat_t, bool try_start_ssl, IP *ret_ip)
{
return TcpIpConnectEx2(hostname, port, cancel_flag, hWnd, nat_t_error_code, no_nat_t, try_start_ssl, NULL, ret_ip);
}
SOCK *TcpIpConnectEx2(char *hostname, UINT port, bool *cancel_flag, void *hWnd, UINT *nat_t_error_code, bool no_nat_t, bool try_start_ssl, char *hint_str, IP *ret_ip)
{
SOCK *s = NULL;
UINT dummy_int = 0;
@ -6475,7 +6483,7 @@ SOCK *TcpIpConnectEx(char *hostname, UINT port, bool *cancel_flag, void *hWnd, U
return NULL;
}
s = TcpConnectEx3(hostname, port, 0, cancel_flag, hWnd, no_nat_t, nat_t_error_code, try_start_ssl, ret_ip);
s = TcpConnectEx4(hostname, port, 0, cancel_flag, hWnd, no_nat_t, nat_t_error_code, try_start_ssl, hint_str, ret_ip);
if (s == NULL)
{
return NULL;