Revert "Merge branch 'master' of https://github.com/F-Stack/f-stack"

Refer #322 #323 #343

This reverts commit 2bc927f, reversing
changes made to 2576201.

Author: jfb8856606

freebsd/netinet/in_pcb.c

@@ -1126,10 +1126,7 @@ if (lport == 0)
     ifp_sin.sin_len = sizeof(ifp_sin);
     ifa = ifa_ifwithnet((struct sockaddr *)&ifp_sin, 0, RT_ALL_FIBS);
     if (ifa == NULL) {
-    	ifp_sin.sin_addr.s_addr = faddr.s_addr;
-    	ifa = ifa_ifwithnet((struct sockaddr *)&ifp_sin, 0, RT_ALL_FIBS);
-    	if ( ifa == NULL )
-        	return (EADDRNOTAVAIL);
+        return (EADDRNOTAVAIL);
     }
     ifp = ifa->ifa_ifp;
     while (lport == 0) {

freebsd/netinet/tcp_usrreq.c

@@ -1321,22 +1321,14 @@ tcp_connect(struct tcpcb *tp, struct sockaddr *nam, struct thread *td)
             error = EADDRINUSE;
             goto out;
         }
-        
-        // inp->inp_lport != lport means in_pcbconnect_setup selected new port to inp->inp_lport.
-        // inp will inhash.
-        if (in_pcbinshash(inp) != 0) {
-            inp->inp_laddr.s_addr = INADDR_ANY;
-            inp->inp_lport = 0;
-            return (EAGAIN);
-        }
     }
-    else
-    {
-        // app call bind() and connect(), lport is set when bind, and the inp is inhashed in bind() function.
-        // in_pcbconnect_setup() update inp->inp_faddr/inp->inp_fport, so inp should be rehashed.
-        in_pcbrehash(inp);
+
+    if (in_pcbinshash(inp) != 0) {
+        inp->inp_laddr.s_addr = INADDR_ANY;
+        inp->inp_lport = 0;
+        return (EAGAIN);
     }
-    
+
     if (anonport) {
         inp->inp_flags |= INP_ANONPORT;
     }