xnu-344.tar.gz

[apple/xnu.git] / bsd / netinet / tcp_seq.h

diff --git a/bsd/netinet/tcp_seq.h b/bsd/netinet/tcp_seq.h
index 032cff92071f727745b5c335a1de5891c008d322..57f1c926220e31c1afe8c645a0fdf64bc3bd41d3 100644 (file)
--- a/bsd/netinet/tcp_seq.h
+++ b/bsd/netinet/tcp_seq.h
@@ -52,10 +52,12 @@
  * SUCH DAMAGE.
  *
  *     @(#)tcp_seq.h   8.3 (Berkeley) 6/21/95
+ * $FreeBSD: src/sys/netinet/tcp_seq.h,v 1.11.2.5 2001/08/22 00:59:12 silby Exp $
  */
 
 #ifndef _NETINET_TCP_SEQ_H_
 #define _NETINET_TCP_SEQ_H_
+#include <sys/appleapiopts.h>
 /*
  * TCP sequence numbers are 32 bit integers operated
  * on with modular arithmetic.  These macros can be
@@ -83,6 +85,7 @@
 /* Macro to increment a CC: skip 0 which has a special meaning */
 #define CC_INC(c)      (++(c) == 0 ? ++(c) : (c))
 
+#ifdef __APPLE_API_PRIVATE
 /*
  * Macros to initialize tcp sequence numbers for
  * send and receive from initial send and receive
@@ -97,26 +100,11 @@
 
 #define TCP_PAWS_IDLE  (24 * 24 * 60 * 60 * PR_SLOWHZ)
                                        /* timestamp wrap-around time */
+#endif /* __APPLE_API_PRIVATE */
 
 #ifdef KERNEL
+#ifdef __APPLE_API_PRIVATE
 extern tcp_cc  tcp_ccgen;              /* global connection count */
-
-/*
- * Increment for tcp_iss each second.
- * This is designed to increment at the standard 250 KB/s,
- * but with a random component averaging 128 KB.
- * We also increment tcp_iss by a quarter of this amount
- * each time we use the value for a new connection.
- * If defined, the tcp_random18() macro should produce a
- * number in the range [0-0x3ffff] that is hard to predict.
- */
-#ifndef tcp_random18
-#define        tcp_random18()  ((random() >> 14) & 0x3ffff)
-#endif
-#define        TCP_ISSINCR     (122*1024 + tcp_random18())
-
-extern tcp_seq tcp_iss;                /* tcp initial send seq # */
-#else
-#define        TCP_ISSINCR     (250*1024)      /* increment for tcp_iss each second */
+#endif /* __APPLE_API_PRIVATE */
 #endif /* KERNEL */
 #endif /* _NETINET_TCP_SEQ_H_ */