/*
- * Copyright (c) 2000-2014 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#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 */
-#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_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;
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_wired_txbytes __attribute((aligned(8))); /* bytes transmitted over Wired */
struct tcp_conn_status tcpi_connstatus; /* status of connection probes */
- u_int16_t /* Client-side information */
+ 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 */
- /* And the following are for server-side information (must be set on the listener socket) */
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_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 */
u_int32_t tcpi_srtt; /* average RTT in ms */
u_int32_t tcpi_rttvar; /* RTT variance */
u_int32_t
- /* Client-side information */
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 */
- /* And the following are for server-side information (must be set on the listener socket) */
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 */
- __pad2:23;
+ 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)));
projects / apple / xnu.git / blobdiff