/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2011 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Copyright (c) 1982, 1986, 1993
#include <sys/_types.h>
#include <machine/endian.h>
-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
typedef __uint32_t tcp_seq;
typedef __uint32_t tcp_cc; /* connection count per rfc1644 */
#define TCPOPT_EOL 0
#define TCPOPT_NOP 1
#define TCPOPT_MAXSEG 2
-#define TCPOLEN_MAXSEG 4
+#define TCPOLEN_MAXSEG 4
#define TCPOPT_WINDOW 3
-#define TCPOLEN_WINDOW 3
+#define TCPOLEN_WINDOW 3
#define TCPOPT_SACK_PERMITTED 4 /* Experimental */
-#define TCPOLEN_SACK_PERMITTED 2
+#define TCPOLEN_SACK_PERMITTED 2
#define TCPOPT_SACK 5 /* Experimental */
+#define TCPOLEN_SACK 8 /* len of sack block */
#define TCPOPT_TIMESTAMP 8
-#define TCPOLEN_TIMESTAMP 10
-#define TCPOLEN_TSTAMP_APPA (TCPOLEN_TIMESTAMP+2) /* appendix A */
-#define TCPOPT_TSTAMP_HDR \
+#define TCPOLEN_TIMESTAMP 10
+#define TCPOLEN_TSTAMP_APPA (TCPOLEN_TIMESTAMP+2) /* appendix A */
+#define TCPOPT_TSTAMP_HDR \
(TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP)
+#define MAX_TCPOPTLEN 40 /* Absolute maximum TCP options len */
+
#define TCPOPT_CC 11 /* CC options: RFC-1644 */
#define TCPOPT_CCNEW 12
#define TCPOPT_CCECHO 13
#define TCPOLEN_CC_APPA (TCPOLEN_CC+2)
#define TCPOPT_CC_HDR(ccopt) \
(TCPOPT_NOP<<24|TCPOPT_NOP<<16|(ccopt)<<8|TCPOLEN_CC)
+#define TCPOPT_SIGNATURE 19 /* Keyed MD5: RFC 2385 */
+#define TCPOLEN_SIGNATURE 18
+
+/* 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 */
+
/*
* Default maximum segment size for TCP.
#define TCP_MAX_WINSHIFT 14 /* maximum window shift */
-#define TCP_MAXBURST 4 /* maximum segments in a burst */
-
#define TCP_MAXHLEN (0xf<<2) /* max length of header in bytes */
#define TCP_MAXOLEN (TCP_MAXHLEN - sizeof(struct tcphdr))
/* max space left for options */
-#endif /* _POSIX_C_SOURCE */
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
/*
* User-settable options (used with setsockopt).
*/
-#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */
-#ifndef _POSIX_C_SOURCE
-#define TCP_MAXSEG 0x02 /* set maximum segment size */
-#define TCP_NOPUSH 0x04 /* don't push last block of write */
-#define TCP_NOOPT 0x08 /* don't use TCP options */
-#define TCP_KEEPALIVE 0x10 /* idle time used when SO_KEEPALIVE is enabled */
-#endif /* _POSIX_C_SOURCE */
+#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define TCP_MAXSEG 0x02 /* set maximum segment size */
+#define TCP_NOPUSH 0x04 /* don't push last block of write */
+#define TCP_NOOPT 0x08 /* don't use TCP options */
+#define TCP_KEEPALIVE 0x10 /* idle time used when SO_KEEPALIVE is enabled */
+#define TCP_CONNECTIONTIMEOUT 0x20 /* connection timeout */
+#define PERSIST_TIMEOUT 0x40 /* time after which a connection in
+ * persist timeout will terminate.
+ * see draft-ananth-tcpm-persist-02.txt
+ */
+#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
+ * after retransmitting the FIN 3 times. It will
+ * prevent holding too many mbufs in socket
+ * buffer queues.
+ */
+#ifdef PRIVATE
+#define TCP_INFO 0x200 /* retrieve tcp_info structure */
+
+/*
+ * The TCP_INFO socket option comes from the Linux 2.6 TCP API, and permits
+ * the caller to query certain information about the state of a TCP
+ * connection. We provide an overlapping set of fields with the Linux
+ * implementation, but since this is a fixed size structure, room has been
+ * left for growth. In order to maximize potential future compatibility with
+ * the Linux API, the same variable names and order have been adopted, and
+ * padding left to make room for omitted fields in case they are added later.
+ *
+ * XXX: This is currently an unstable ABI/API, in that it is expected to
+ * change.
+ */
+#pragma pack(4)
+
+#define TCPI_OPT_TIMESTAMPS 0x01
+#define TCPI_OPT_SACK 0x02
+#define TCPI_OPT_WSCALE 0x04
+#define TCPI_OPT_ECN 0x08
+
+struct tcp_info {
+ u_int8_t tcpi_state; /* TCP FSM state. */
+ u_int8_t tcpi_options; /* Options enabled on conn. */
+ u_int8_t tcpi_snd_wscale; /* RFC1323 send shift value. */
+ u_int8_t tcpi_rcv_wscale; /* RFC1323 recv shift value. */
+
+ u_int32_t tcpi_snd_mss; /* Max segment size for send. */
+ u_int32_t tcpi_rcv_mss; /* Max segment size for receive. */
+
+ u_int32_t tcpi_snd_ssthresh; /* Slow start threshold. */
+ u_int32_t tcpi_snd_cwnd; /* Send congestion window. */
+
+ u_int32_t tcpi_rcv_space; /* Advertised recv window. */
+
+ u_int32_t tcpi_snd_wnd; /* Advertised send window. */
+ u_int32_t tcpi_snd_bwnd; /* Bandwidth 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 */
+};
+
+/*
+ * Note that IPv6 link local addresses should have the appropriate scope ID
+ */
+
+struct info_tuple {
+ u_int8_t itpl_proto;
+ union {
+ struct sockaddr _itpl_sa;
+ struct sockaddr_in _itpl_sin;
+ struct sockaddr_in6 _itpl_sin6;
+ } itpl_localaddr;
+ union {
+ struct sockaddr _itpl_sa;
+ struct sockaddr_in _itpl_sin;
+ struct sockaddr_in6 _itpl_sin6;
+ } itpl_remoteaddr;
+};
+
+#define itpl_local_sa itpl_localaddr._itpl_sa
+#define itpl_local_sin itpl_localaddr._itpl_sin
+#define itpl_local_sin6 itpl_localaddr._itpl_sin6
+#define itpl_remote_sa itpl_remoteaddr._itpl_sa
+#define itpl_remote_sin itpl_remoteaddr._itpl_sin
+#define itpl_remote_sin6 itpl_remoteaddr._itpl_sin6
+
+#pragma pack()
+
+#endif /* PRIVATE */
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
#endif
projects / apple / xnu.git / blobdiff