/*
- * Copyright (c) 2000-2011 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2014 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
(TCPOPT_NOP<<24|TCPOPT_NOP<<16|(ccopt)<<8|TCPOLEN_CC)
#define TCPOPT_SIGNATURE 19 /* Keyed MD5: RFC 2385 */
#define TCPOLEN_SIGNATURE 18
+#if MPTCP
+#define TCPOPT_MULTIPATH 30
+#endif
/* Option definitions */
#define TCPOPT_SACK_PERMIT_HDR \
#define TCPOPT_SACK_HDR (TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_SACK<<8)
/* Miscellaneous constants */
#define MAX_SACK_BLKS 6 /* Max # SACK blocks stored at sender side */
-#define TCP_MAX_SACK 3 /* MAX # SACKs sent in any segment */
+
+/*
+ * A SACK option that specifies n blocks will have a length of (8*n + 2)
+ * bytes, so the 40 bytes available for TCP options can specify a
+ * maximum of 4 blocks.
+ */
+
+#define TCP_MAX_SACK 4 /* MAX # SACKs sent in any segment */
/*
*/
#define TCP_MINMSS 216
-/*
- * TCP_MINMSSOVERLOAD is defined to be 1000 which should cover any type
- * of interactive TCP session.
- * See tcp_subr.c tcp_minmssoverload SYSCTL declaration and tcp_input.c
- * for more comments.
- * Setting this to "0" disables the minmssoverload check.
- */
-#define TCP_MINMSSOVERLOAD 1000
-
/*
* Default maximum segment size for TCP6.
* With an IP6 MSS of 1280, this is 1220,
#define TCP_RXT_CONNDROPTIME 0x80 /* time after which tcp retransmissions will be
* stopped and the connection will be dropped
*/
-#define TCP_RXT_FINDROP 0x100 /* when this option is set, drop a connection
+#define TCP_RXT_FINDROP 0x100 /* when this option is set, drop a connection
* after retransmitting the FIN 3 times. It will
* prevent holding too many mbufs in socket
* buffer queues.
*/
+#define TCP_KEEPINTVL 0x101 /* interval between keepalives */
+#define TCP_KEEPCNT 0x102 /* number of keepalives before close */
+#define TCP_SENDMOREACKS 0x103 /* always ack every other packet */
+#define TCP_ENABLE_ECN 0x104 /* Enable ECN on a connection */
+
#ifdef PRIVATE
#define TCP_INFO 0x200 /* retrieve tcp_info structure */
-#define TCP_NOTSENT_LOWAT 0x201 /* Low water mark for TCP unsent data */
#define TCP_MEASURE_SND_BW 0x202 /* Measure sender's bandwidth for this connection */
+#endif /* PRIVATE */
+
+
+#define TCP_NOTSENT_LOWAT 0x201 /* Low water mark for TCP unsent data */
+
+#ifdef PRIVATE
#define TCP_MEASURE_BW_BURST 0x203 /* Burst size to use for bandwidth measurement */
#define TCP_PEER_PID 0x204 /* Lookup pid of the process we're connected to */
+#define TCP_ADAPTIVE_READ_TIMEOUT 0x205 /* Read timeout used as a multiple of RTT */
+/*
+ * Enable message delivery on a socket, this feature is currently unsupported and
+ * is subjected to change in future.
+ */
+#define TCP_ENABLE_MSGS 0x206
+#define TCP_ADAPTIVE_WRITE_TIMEOUT 0x207 /* Write timeout used as a multiple of RTT */
+#define TCP_NOTIMEWAIT 0x208 /* Avoid going into time-wait */
+#define TCP_DISABLE_BLACKHOLE_DETECTION 0x209 /* disable PMTU blackhole detection */
+
/*
* The TCP_INFO socket option is a private API and is subject to change
*/
#define TCPI_FLAG_LOSSRECOVERY 0x01 /* Currently in loss recovery */
+/*
+ * Add new fields to this structure at the end only. This will preserve
+ * binary compatibility.
+ */
struct tcp_info {
u_int8_t tcpi_state; /* TCP FSM state. */
u_int8_t tcpi_options; /* Options enabled on conn. */
u_int32_t tcpi_rttcur; /* Most recent value of RTT */
u_int32_t tcpi_srtt; /* Smoothed RTT */
u_int32_t tcpi_rttvar; /* RTT variance */
+ u_int32_t tcpi_rttbest; /* Best RTT we've seen */
u_int32_t tcpi_snd_ssthresh; /* Slow start threshold. */
u_int32_t tcpi_snd_cwnd; /* Send congestion window. */
int32_t tcpi_last_outif; /* if_index of interface used to send last */
u_int32_t tcpi_snd_sbbytes; /* bytes in snd buffer including data inflight */
+ u_int64_t tcpi_txpackets __attribute__((aligned(8))); /* total packets sent */
u_int64_t tcpi_txbytes __attribute__((aligned(8)));
/* total bytes sent */
u_int64_t tcpi_txretransmitbytes __attribute__((aligned(8)));
/* total bytes retransmitted */
u_int64_t tcpi_txunacked __attribute__((aligned(8)));
/* current number of bytes not acknowledged */
+ u_int64_t tcpi_rxpackets __attribute__((aligned(8))); /* total packets received */
u_int64_t tcpi_rxbytes __attribute__((aligned(8)));
/* total bytes received */
u_int64_t tcpi_rxduplicatebytes __attribute__((aligned(8)));
/* total duplicate bytes received */
- u_int64_t tcpi_snd_bw __attribute__((aligned(8))); /* measured send bandwidth in bits/sec */
+ u_int64_t tcpi_rxoutoforderbytes __attribute__((aligned(8)));
+ /* total out of order bytes received */
+ u_int64_t tcpi_snd_bw __attribute__((aligned(8))); /* measured send bandwidth in bits/sec */
+ u_int8_t tcpi_synrexmits; /* Number of syn retransmits before connect */
+ u_int8_t tcpi_unused1;
+ u_int16_t tcpi_unused2;
+ u_int64_t tcpi_cell_rxpackets __attribute((aligned(8))); /* packets received over cellular */
+ u_int64_t tcpi_cell_rxbytes __attribute((aligned(8))); /* bytes received over cellular */
+ u_int64_t tcpi_cell_txpackets __attribute((aligned(8))); /* packets transmitted over cellular */
+ u_int64_t tcpi_cell_txbytes __attribute((aligned(8))); /* bytes transmitted over cellular */
+ u_int64_t tcpi_wifi_rxpackets __attribute((aligned(8))); /* packets received over Wi-Fi */
+ u_int64_t tcpi_wifi_rxbytes __attribute((aligned(8))); /* bytes received over Wi-Fi */
+ u_int64_t tcpi_wifi_txpackets __attribute((aligned(8))); /* packets transmitted over Wi-Fi */
+ u_int64_t tcpi_wifi_txbytes __attribute((aligned(8))); /* bytes transmitted over Wi-Fi */
+ u_int64_t tcpi_wired_rxpackets __attribute((aligned(8))); /* packets received over Wired */
+ u_int64_t tcpi_wired_rxbytes __attribute((aligned(8))); /* bytes received over Wired */
+ u_int64_t tcpi_wired_txpackets __attribute((aligned(8))); /* packets transmitted over Wired */
+ u_int64_t tcpi_wired_txbytes __attribute((aligned(8))); /* bytes transmitted over Wired */
};
struct tcp_measure_bw_burst {
#define itpl_remote_sin itpl_remoteaddr._itpl_sin
#define itpl_remote_sin6 itpl_remoteaddr._itpl_sin6
+/*
+ * TCP connection info auxiliary data (CIAUX_TCP)
+ *
+ * Do not add new fields to this structure, just add them to tcp_info
+ * structure towards the end. This will preserve binary compatibility.
+ */
+typedef struct conninfo_tcp {
+ pid_t tcpci_peer_pid; /* loopback peer PID if > 0 */
+ struct tcp_info tcpci_tcp_info; /* TCP info */
+} conninfo_tcp_t;
+
#pragma pack()
#endif /* PRIVATE */
projects / apple / xnu.git / blobdiff