/*
- * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#ifndef _NETINET_TCP_H_
#define _NETINET_TCP_H_
+#include <sys/types.h>
#include <sys/appleapiopts.h>
-#include <sys/_types.h>
#include <machine/endian.h>
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define TCPOPT_MULTIPATH 30
#endif
+#define TCPOPT_FASTOPEN 34
+#define TCPOLEN_FASTOPEN_REQ 2
+
/* Option definitions */
#define TCPOPT_SACK_PERMIT_HDR \
(TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_SACK_PERMITTED<<8|TCPOLEN_SACK_PERMITTED)
#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_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 */
+#define TCP_FASTOPEN 0x105 /* Enable/Disable TCP Fastopen on this socket */
+#define TCP_CONNECTION_INFO 0x106 /* State of TCP 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_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 */
+#define TCP_ECN_MODE 0x210 /* fine grain control for A/B testing */
+#define TCP_KEEPALIVE_OFFLOAD 0x211 /* offload keep alive processing to firmware */
+
+/*
+ * TCP_ECN_MODE values
+ */
+#define ECN_MODE_DEFAULT 0x0 /* per interface or system wide default */
+#define ECN_MODE_ENABLE 0x1 /* force enable ECN on connection */
+#define ECN_MODE_DISABLE 0x2 /* force disable ECN on connection */
+
+/*
+ * TCP_NOTIFY_ACKNOWLEDGEMENT
+ *
+ * Application can use this socket option to get a notification when
+ * data that is currently written to the socket is acknowledged. The input
+ * argument given to this socket option is a marker_id that will be used for
+ * returning the notification. The application can continue to write
+ * data after setting the marker. There can be multiple of these events
+ * outstanding on a socket at any time up to a max of TCP_MAX_NOTIFY_ACK.
+ *
+ * To get the completed notifications, getsockopt should be called with the
+ * TCP_NOTIFY_ACKNOWLEDGEMENT with the following tcp_notify_ack_complete
+ * structure as an out argument. At most TCP_MAX_NOTIFY_ACK ids will be
+ * returned if they have been successfully acknowledged in each call.
+ */
+
+#define TCP_MAX_NOTIFY_ACK 10
+
+typedef u_int32_t tcp_notify_ack_id_t;
+
+struct tcp_notify_ack_complete {
+ u_int32_t notify_pending; /* still pending */
+ u_int32_t notify_complete_count;
+ tcp_notify_ack_id_t notify_complete_id[TCP_MAX_NOTIFY_ACK];
+};
+
+#define TCP_NOTIFY_ACKNOWLEDGEMENT 0x212 /* Notify when data is acknowledged */
/*
* The TCP_INFO socket option is a private API and is subject to change
#define TCPI_OPT_ECN 0x08
#define TCPI_FLAG_LOSSRECOVERY 0x01 /* Currently in loss recovery */
+#define TCPI_FLAG_STREAMING_ON 0x02 /* Streaming detection on */
+
+struct tcp_conn_status {
+ unsigned int probe_activated : 1;
+ unsigned int write_probe_failed : 1;
+ unsigned int read_probe_failed : 1;
+ unsigned int conn_probe_failed : 1;
+};
/*
* Add new fields to this structure at the end only. This will preserve
u_int32_t tcpi_snd_wnd; /* Advertised send window. */
u_int32_t tcpi_snd_nxt; /* Next egress seqno */
u_int32_t tcpi_rcv_nxt; /* Next ingress seqno */
-
+
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_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_conn_status tcpi_connstatus; /* status of connection probes */
+
+ u_int16_t
+ tcpi_tfo_cookie_req:1, /* Cookie requested? */
+ tcpi_tfo_cookie_rcv:1, /* Cookie received? */
+ tcpi_tfo_syn_loss:1, /* Fallback to reg. TCP after SYN-loss */
+ tcpi_tfo_syn_data_sent:1, /* SYN+data has been sent out */
+ tcpi_tfo_syn_data_acked:1, /* SYN+data has been fully acknowledged */
+ tcpi_tfo_syn_data_rcv:1, /* Server received SYN+data with a valid cookie */
+ tcpi_tfo_cookie_req_rcv:1, /* Server received cookie-request */
+ tcpi_tfo_cookie_sent:1, /* Server announced cookie */
+ tcpi_tfo_cookie_invalid:1, /* Server received an invalid cookie */
+ tcpi_tfo_cookie_wrong:1, /* Our sent cookie was wrong */
+ tcpi_tfo_no_cookie_rcv:1, /* We did not receive a cookie upon our request */
+ tcpi_tfo_heuristics_disable:1, /* TFO-heuristics disabled it */
+ tcpi_tfo_send_blackhole:1, /* A sending-blackhole got detected */
+ tcpi_tfo_recv_blackhole:1; /* A receiver-blackhole got detected */
+
+ u_int16_t tcpi_ecn_client_setup:1, /* Attempted ECN setup from client side */
+ tcpi_ecn_server_setup:1, /* Attempted ECN setup from server side */
+ tcpi_ecn_success:1, /* peer negotiated ECN */
+ tcpi_ecn_lost_syn:1, /* Lost SYN with ECN setup */
+ tcpi_ecn_lost_synack:1, /* Lost SYN-ACK with ECN setup */
+ tcpi_local_peer:1, /* Local to the host or the subnet */
+ tcpi_if_cell:1, /* Interface is cellular */
+ tcpi_if_wifi:1; /* Interface is WiFi */
+
+ u_int32_t tcpi_ecn_recv_ce; /* Packets received with CE */
+ u_int32_t tcpi_ecn_recv_cwr; /* Packets received with CWR */
+
+ u_int32_t tcpi_rcvoopack; /* out-of-order packets received */
+ u_int32_t tcpi_pawsdrop; /* segments dropped due to PAWS */
+ u_int32_t tcpi_sack_recovery_episode; /* SACK recovery episodes */
+ u_int32_t tcpi_reordered_pkts; /* packets reorderd */
+ u_int32_t tcpi_dsack_sent; /* Sent DSACK notification */
+ u_int32_t tcpi_dsack_recvd; /* Received a valid DSACK option */
+ u_int32_t tcpi_flowhash; /* Unique id for the connection */
+
+ u_int64_t tcpi_txretransmitpackets __attribute__((aligned(8)));
};
struct tcp_measure_bw_burst {
#pragma pack()
#endif /* PRIVATE */
+
+struct tcp_connection_info {
+ u_int8_t tcpi_state; /* connection state */
+ u_int8_t tcpi_snd_wscale; /* Window scale for send window */
+ u_int8_t tcpi_rcv_wscale; /* Window scale for receive window */
+ u_int8_t __pad1;
+ u_int32_t tcpi_options; /* TCP options supported */
+#define TCPCI_OPT_TIMESTAMPS 0x00000001 /* Timestamps enabled */
+#define TCPCI_OPT_SACK 0x00000002 /* SACK enabled */
+#define TCPCI_OPT_WSCALE 0x00000004 /* Window scaling enabled */
+#define TCPCI_OPT_ECN 0x00000008 /* ECN enabled */
+ u_int32_t tcpi_flags; /* flags */
+#define TCPCI_FLAG_LOSSRECOVERY 0x00000001
+#define TCPCI_FLAG_REORDERING_DETECTED 0x00000002
+ u_int32_t tcpi_rto; /* retransmit timeout in ms */
+ u_int32_t tcpi_maxseg; /* maximum segment size supported */
+ u_int32_t tcpi_snd_ssthresh; /* slow start threshold in bytes */
+ u_int32_t tcpi_snd_cwnd; /* send congestion window in bytes */
+ u_int32_t tcpi_snd_wnd; /* send widnow in bytes */
+ u_int32_t tcpi_snd_sbbytes; /* bytes in send socket buffer, including in-flight data */
+ u_int32_t tcpi_rcv_wnd; /* receive window in bytes*/
+ u_int32_t tcpi_rttcur; /* most recent RTT in ms */
+ u_int32_t tcpi_srtt; /* average RTT in ms */
+ u_int32_t tcpi_rttvar; /* RTT variance */
+ u_int32_t
+ tcpi_tfo_cookie_req:1, /* Cookie requested? */
+ tcpi_tfo_cookie_rcv:1, /* Cookie received? */
+ tcpi_tfo_syn_loss:1, /* Fallback to reg. TCP after SYN-loss */
+ tcpi_tfo_syn_data_sent:1, /* SYN+data has been sent out */
+ tcpi_tfo_syn_data_acked:1, /* SYN+data has been fully acknowledged */
+ tcpi_tfo_syn_data_rcv:1, /* Server received SYN+data with a valid cookie */
+ tcpi_tfo_cookie_req_rcv:1, /* Server received cookie-request */
+ tcpi_tfo_cookie_sent:1, /* Server announced cookie */
+ tcpi_tfo_cookie_invalid:1, /* Server received an invalid cookie */
+ tcpi_tfo_cookie_wrong:1, /* Our sent cookie was wrong */
+ tcpi_tfo_no_cookie_rcv:1, /* We did not receive a cookie upon our request */
+ tcpi_tfo_heuristics_disable:1, /* TFO-heuristics disabled it */
+ tcpi_tfo_send_blackhole:1, /* A sending-blackhole got detected */
+ tcpi_tfo_recv_blackhole:1, /* A receiver-blackhole got detected */
+ __pad2:18;
+ u_int64_t tcpi_txpackets __attribute__((aligned(8)));
+ u_int64_t tcpi_txbytes __attribute__((aligned(8)));
+ u_int64_t tcpi_txretransmitbytes __attribute__((aligned(8)));
+ u_int64_t tcpi_rxpackets __attribute__((aligned(8)));
+ u_int64_t tcpi_rxbytes __attribute__((aligned(8)));
+ u_int64_t tcpi_rxoutoforderbytes __attribute__((aligned(8)));
+ u_int64_t tcpi_txretransmitpackets __attribute__((aligned(8)));
+};
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
#endif
projects / apple / xnu.git / blobdiff