xnu-7195.101.1.tar.gz

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

diff --git a/bsd/netinet/tcp_cache.h b/bsd/netinet/tcp_cache.h
index 601aec807c4d66f0f61379fe2a5d3986d3b8a63d..9259076ca7cdf08636248e990ceeba5c2bfbeb76 100644 (file)
--- a/bsd/netinet/tcp_cache.h
+++ b/bsd/netinet/tcp_cache.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015 Apple Inc. All rights reserved.
+ * Copyright (c) 2015-2016 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
@@ -34,19 +34,40 @@
 #include <netinet/tcp_var.h>
 #include <netinet/in.h>
 
+#define ECN_MIN_CE_PROBES       10 /* Probes are basically the number of incoming packets */
+#define ECN_MAX_CE_RATIO        7 /* Ratio is the maximum number of CE-packets we accept per incoming "probe" */
+
 extern void tcp_cache_set_cookie(struct tcpcb *tp, u_char *cookie, u_int8_t len);
 extern int tcp_cache_get_cookie(struct tcpcb *tp, u_char *cookie, u_int8_t *len);
 extern unsigned int tcp_cache_get_cookie_len(struct tcpcb *tp);
 
-extern void tcp_heuristic_tfo_inc_loss(struct tcpcb *tp);
-extern void tcp_heuristic_tfo_snd_good(struct tcpcb *tp);
-extern void tcp_heuristic_tfo_rcv_good(struct tcpcb *tp);
+extern void tcp_heuristic_tfo_loss(struct tcpcb *tp);
+extern void tcp_heuristic_tfo_rst(struct tcpcb *tp);
+extern void tcp_heuristic_mptcp_loss(struct tcpcb *tp);
+extern void tcp_heuristic_ecn_loss(struct tcpcb *tp);
 extern void tcp_heuristic_tfo_middlebox(struct tcpcb *tp);
-extern void tcp_heuristic_tfo_reset_loss(struct tcpcb *tp);
+extern void tcp_heuristic_ecn_aggressive(struct tcpcb *tp);
 extern void tcp_heuristic_tfo_success(struct tcpcb *tp);
+extern void tcp_heuristic_mptcp_success(struct tcpcb *tp);
+extern void tcp_heuristic_ecn_success(struct tcpcb *tp);
 extern boolean_t tcp_heuristic_do_tfo(struct tcpcb *tp);
+extern int tcp_heuristic_do_mptcp(struct tcpcb *tp);
+extern boolean_t tcp_heuristic_do_ecn(struct tcpcb *tp);
+extern void tcp_heuristic_ecn_droprst(struct tcpcb *tp);
+extern void tcp_heuristic_ecn_droprxmt(struct tcpcb *tp);
+extern void tcp_heuristic_ecn_synrst(struct tcpcb *tp);
+
+extern boolean_t tcp_heuristic_do_ecn_with_address(struct ifnet *ifp,
+    union sockaddr_in_4_6 *local_address);
+extern void tcp_heuristics_ecn_update(struct necp_tcp_ecn_cache *necp_buffer,
+    struct ifnet *ifp, union sockaddr_in_4_6 *local_address);
+extern boolean_t tcp_heuristic_do_tfo_with_address(struct ifnet *ifp,
+    union sockaddr_in_4_6 *local_address, union sockaddr_in_4_6 *remote_address,
+    u_int8_t *cookie, u_int8_t *cookie_len);
+extern void tcp_heuristics_tfo_update(struct necp_tcp_tfo_cache *necp_buffer,
+    struct ifnet *ifp, union sockaddr_in_4_6 *local_address,
+    union sockaddr_in_4_6 *remote_address);
 
 extern void tcp_cache_init(void);
 
 #endif /* _NETINET_TCP_CACHE_H */
-