xnu-1228.9.59.tar.gz

[apple/xnu.git] / bsd / netinet / tcp_subr.c

diff --git a/bsd/netinet/tcp_subr.c b/bsd/netinet/tcp_subr.c
index f51febfc1af45998e510d576213555feb73c2418..a94f8ad2a7f0e8f4cf6f10f7059919f952d3468f 100644 (file)
--- a/bsd/netinet/tcp_subr.c
+++ b/bsd/netinet/tcp_subr.c
@@ -608,6 +608,12 @@ tcp_respond(
                mac_netinet_tcp_reply(m);
        }
 #endif
+       
+#if CONFIG_IP_EDGEHOLE
+       if (tp && tp->t_inpcb)
+               ip_edgehole_mbuf_tag(tp->t_inpcb, m);
+#endif
+       
        nth->th_seq = htonl(seq);
        nth->th_ack = htonl(ack);
        nth->th_x2 = 0;
@@ -1433,11 +1439,6 @@ tcp6_ctlinput(cmd, sa, d)
 
 #define ISN_BYTES_PER_SECOND 1048576
 
-//PWC - md5 routines cause alignment exceptions.  Need to figure out why.  For now use lame incremental
-// isn.  how's that for not easily guessable!?
-
-int pwc_bogus;
-
 tcp_seq
 tcp_new_isn(tp)
        struct tcpcb *tp;
@@ -1625,7 +1626,7 @@ tcp_mtudisc(
 
 /*
  * Look-up the routing entry to the peer of this inpcb.  If no route
- * is found and it cannot be allocated the return NULL.  This routine
+ * is found and it cannot be allocated then return NULL.  This routine
  * is called by TCP routines that access the rmx structure and by tcp_mss
  * to get the interface MTU.
  */
@@ -1675,6 +1676,15 @@ tcp_rtlookup(inp)
        else
                tp->t_flags |= TF_PMTUD;
 
+#ifdef IFEF_NOWINDOWSCALE
+       if (tp->t_state == TCPS_SYN_SENT && rt != NULL && rt->rt_ifp != NULL &&
+               (rt->rt_ifp->if_eflags & IFEF_NOWINDOWSCALE) != 0)
+       {
+               // Timestamps are not enabled on this interface
+               tp->t_flags &= ~(TF_REQ_SCALE);
+       }
+#endif
+
        return rt;
 }