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socket.h
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socket.h
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/*
* Copyright (c) 2000-2019 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
* 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.
*
* 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, 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@
*/
/* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
* Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)socket.h 8.4 (Berkeley) 2/21/94
* $FreeBSD: src/sys/sys/socket.h,v 1.39.2.7 2001/07/03 11:02:01 ume Exp $
*/
/*
* NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
* support for mandatory and extensible security protections. This notice
* is included in support of clause 2.2 (b) of the Apple Public License,
* Version 2.0.
*/
#ifndef _SYS_SOCKET_H_
#define _SYS_SOCKET_H_
#include <sys/types.h>
#include <sys/cdefs.h>
#include <machine/_param.h>
#include <net/net_kev.h>
#ifdef PRIVATE
#include <sys/param.h>
#include <uuid/uuid.h>
#endif /* PRIVATE */
#ifndef KERNEL
#include <Availability.h>
#endif
/*
* Definitions related to sockets: types, address families, options.
*/
/*
* Data types.
*/
#include <sys/_types/_gid_t.h>
#include <sys/_types/_off_t.h>
#include <sys/_types/_pid_t.h>
#include <sys/_types/_sa_family_t.h>
#include <sys/_types/_socklen_t.h>
/* XXX Not explicitly defined by POSIX, but function return types are */
#include <sys/_types/_size_t.h>
/* XXX Not explicitly defined by POSIX, but function return types are */
#include <sys/_types/_ssize_t.h>
/*
* [XSI] The iovec structure shall be defined as described in <sys/uio.h>.
*/
#include <sys/_types/_iovec_t.h>
/*
* Types
*/
#define SOCK_STREAM 1 /* stream socket */
#define SOCK_DGRAM 2 /* datagram socket */
#define SOCK_RAW 3 /* raw-protocol interface */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define SOCK_RDM 4 /* reliably-delivered message */
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
#define SOCK_SEQPACKET 5 /* sequenced packet stream */
/*
* Option flags per-socket.
*/
#define SO_DEBUG 0x0001 /* turn on debugging info recording */
#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
#define SO_REUSEADDR 0x0004 /* allow local address reuse */
#define SO_KEEPALIVE 0x0008 /* keep connections alive */
#define SO_DONTROUTE 0x0010 /* just use interface addresses */
#define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
#define SO_LINGER 0x0080 /* linger on close if data present (in ticks) */
#else
#define SO_LINGER 0x1080 /* linger on close if data present (in seconds) */
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
#define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define SO_REUSEPORT 0x0200 /* allow local address & port reuse */
#define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */
#define SO_TIMESTAMP_MONOTONIC 0x0800 /* Monotonically increasing timestamp on rcvd dgram */
#ifndef __APPLE__
#define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */
#else
#define SO_DONTTRUNC 0x2000 /* APPLE: Retain unread data */
/* (ATOMIC proto) */
#define SO_WANTMORE 0x4000 /* APPLE: Give hint when more data ready */
#define SO_WANTOOBFLAG 0x8000 /* APPLE: Want OOB in MSG_FLAG on receive */
#ifdef PRIVATE
#define SO_NOWAKEFROMSLEEP 0x10000 /* Don't wake for traffic to this socket */
#define SO_NOAPNFALLBK 0x20000 /* Don't attempt APN fallback for the socket */
#define SO_TIMESTAMP_CONTINUOUS 0x40000 /* Continuous monotonic timestamp on rcvd dgram */
#endif
#endif /* (!__APPLE__) */
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
/*
* Additional options, not kept in so_options.
*/
#define SO_SNDBUF 0x1001 /* send buffer size */
#define SO_RCVBUF 0x1002 /* receive buffer size */
#define SO_SNDLOWAT 0x1003 /* send low-water mark */
#define SO_RCVLOWAT 0x1004 /* receive low-water mark */
#define SO_SNDTIMEO 0x1005 /* send timeout */
#define SO_RCVTIMEO 0x1006 /* receive timeout */
#define SO_ERROR 0x1007 /* get error status and clear */
#define SO_TYPE 0x1008 /* get socket type */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define SO_LABEL 0x1010 /* deprecated */
#define SO_PEERLABEL 0x1011 /* deprecated */
#ifdef __APPLE__
#define SO_NREAD 0x1020 /* APPLE: get 1st-packet byte count */
#define SO_NKE 0x1021 /* APPLE: Install socket-level NKE */
#define SO_NOSIGPIPE 0x1022 /* APPLE: No SIGPIPE on EPIPE */
#define SO_NOADDRERR 0x1023 /* APPLE: Returns EADDRNOTAVAIL when src is not available anymore */
#define SO_NWRITE 0x1024 /* APPLE: Get number of bytes currently in send socket buffer */
#define SO_REUSESHAREUID 0x1025 /* APPLE: Allow reuse of port/socket by different userids */
#ifdef __APPLE_API_PRIVATE
#define SO_NOTIFYCONFLICT 0x1026 /* APPLE: send notification if there is a bind on a port which is already in use */
#define SO_UPCALLCLOSEWAIT 0x1027 /* APPLE: block on close until an upcall returns */
#endif
#define SO_LINGER_SEC 0x1080 /* linger on close if data present (in seconds) */
#ifdef PRIVATE
#define SO_RESTRICTIONS 0x1081 /* APPLE: deny flag set */
#define SO_RESTRICT_DENY_IN 0x1 /* deny inbound (trapdoor) */
#define SO_RESTRICT_DENY_OUT 0x2 /* deny outbound (trapdoor) */
#define SO_RESTRICT_DENY_CELLULAR 0x4 /* deny use of cellular (trapdoor) */
#define SO_RESTRICT_DENY_EXPENSIVE 0x8 /* deny use of expensive if (trapdoor) */
#define SO_RESTRICT_DENY_CONSTRAINED 0x10 /* deny use of expensive if (trapdoor) */
#endif /* PRIVATE */
#define SO_RANDOMPORT 0x1082 /* APPLE: request local port randomization */
#define SO_NP_EXTENSIONS 0x1083 /* To turn off some POSIX behavior */
#endif
#ifdef PRIVATE
#define SO_EXECPATH 0x1085 /* Application Firewall Socket option */
/*
* Traffic service class definitions (lowest to highest):
*
* SO_TC_BK_SYS
* "Background System-Initiated", high delay tolerant, high loss
* tolerant, elastic flow, variable size & long-lived. E.g: system-
* initiated iCloud synching or Time Capsule backup, for which there
* is no progress feedbacks.
*
* SO_TC_BK
* "Background", user-initiated, high delay tolerant, high loss tolerant,
* elastic flow, variable size. E.g. user-initiated iCloud synching or
* Time Capsule backup; or traffics of background applications, for which
* there is some progress feedbacks.
*
* SO_TC_BE
* "Best Effort", unclassified/standard. This is the default service
* class; pretty much a mix of everything.
*
* SO_TC_RD
* "Responsive Data", a notch higher than "Best Effort", medium delay
* tolerant, elastic & inelastic flow, bursty, long-lived. E.g. email,
* instant messaging, for which there is a sense of interactivity and
* urgency (user waiting for output).
*
* SO_TC_OAM
* "Operations, Administration, and Management", medium delay tolerant,
* low-medium loss tolerant, elastic & inelastic flows, variable size.
* E.g. VPN tunnels.
*
* SO_TC_AV
* "Multimedia Audio/Video Streaming", medium delay tolerant, low-medium
* loss tolerant, elastic flow, constant packet interval, variable rate &
* size. E.g. AirPlay playback (both video and audio).
*
* SO_TC_RV
* "Responsive Multimedia Audio/Video", low delay tolerant, low-medium
* loss tolerant, elastic flow, variable packet interval, rate and size.
* E.g. AirPlay mirroring, screen sharing.
*
* SO_TC_VI
* "Interactive Video", low delay tolerant, low-medium loss tolerant,
* elastic flow, constant packet interval, variable rate & size. E.g.
* FaceTime video.
*
* SO_TC_VO
* "Interactive Voice", low delay tolerant, low loss tolerant, inelastic
* flow, constant packet rate, somewhat fixed size. E.g. VoIP including
* FaceTime audio.
*
* SO_TC_CTL
* "Network Control", low delay tolerant, low loss tolerant, inelastic
* flow, rate is bursty but short, variable size. E.g. DNS queries;
* certain types of locally-originated ICMP, ICMPv6; IGMP/MLD join/leave,
* ARP.
*/
#define SO_TRAFFIC_CLASS 0x1086 /* Traffic service class (int) */
#define SO_TC_BK_SYS 100 /* lowest class */
#define SO_TC_BK 200
#define SO_TC_BE 0
#define SO_TC_RD 300
#define SO_TC_OAM 400
#define SO_TC_AV 500
#define SO_TC_RV 600
#define SO_TC_VI 700
#define SO_TC_VO 800
#define SO_TC_CTL 900 /* highest class */
#define SO_TC_MAX 10 /* Total # of traffic classes */
#ifdef XNU_KERNEL_PRIVATE
#define _SO_TC_BK 1 /* deprecated */
#define _SO_TC_VI 2 /* deprecated */
#define _SO_TC_VO 3 /* deprecated */
#define _SO_TC_MAX 4 /* deprecated */
#define SO_VALID_TC(c) \
(c == SO_TC_BK_SYS || c == SO_TC_BK || c == SO_TC_BE || \
c == SO_TC_RD || c == SO_TC_OAM || c == SO_TC_AV || \
c == SO_TC_RV || c == SO_TC_VI || c == SO_TC_VO || \
c == SO_TC_CTL || c == SO_TC_NETSVC_SIG)
#define SO_TC_UNSPEC ((int)-1) /* Traffic class not specified */
#define SO_TC_SIG SO_TC_VI /* to be removed XXX */
#define SOTCIX_BK_SYS 0
#define SOTCIX_BK 1
#define SOTCIX_BE 2
#define SOTCIX_RD 3
#define SOTCIX_OAM 4
#define SOTCIX_AV 5
#define SOTCIX_RV 6
#define SOTCIX_VI 7
#define SOTCIX_VO 8
#define SOTCIX_CTL 9
#endif /* XNU_KERNEL_PRIVATE */
/* Background socket configuration flags */
#define TRAFFIC_MGT_SO_BACKGROUND 0x0001 /* background socket */
#define TRAFFIC_MGT_TCP_RECVBG 0x0002 /* Only TCP sockets, receiver throttling */
#define SO_RECV_TRAFFIC_CLASS 0x1087 /* Receive traffic class (bool) */
#define SO_TRAFFIC_CLASS_DBG 0x1088 /* Debug traffic class (struct so_tcdbg) */
#define SO_OPTION_UNUSED_0 0x1089 /* Traffic class statistics */
#define SO_PRIVILEGED_TRAFFIC_CLASS 0x1090 /* Privileged traffic class (bool) */
#define SO_DEFUNCTIT 0x1091 /* Defunct a socket (only in internal builds) */
#define SO_DEFUNCTOK 0x1100 /* can be defunct'd */
#define SO_ISDEFUNCT 0x1101 /* get defunct status */
#define SO_OPPORTUNISTIC 0x1102 /* deprecated; use SO_TRAFFIC_CLASS */
/*
* SO_FLUSH flushes any unsent data generated by a given socket. It takes
* an integer parameter, which can be any of the SO_TC traffic class values,
* or the special SO_TC_ALL value.
*/
#define SO_FLUSH 0x1103 /* flush unsent data (int) */
#define SO_TC_ALL (-1)
#define SO_RECV_ANYIF 0x1104 /* unrestricted inbound processing */
#define SO_TRAFFIC_MGT_BACKGROUND 0x1105 /* Background traffic management */
#define SO_FLOW_DIVERT_TOKEN 0x1106 /* flow divert token */
#define SO_DELEGATED 0x1107 /* set socket as delegate (pid_t) */
#define SO_DELEGATED_UUID 0x1108 /* set socket as delegate (uuid_t) */
#define SO_NECP_ATTRIBUTES 0x1109 /* NECP socket attributes (domain, account, etc.) */
#define SO_CFIL_SOCK_ID 0x1110 /* get content filter socket ID (cfil_sock_id_t) */
#define SO_NECP_CLIENTUUID 0x1111 /* NECP Client uuid */
#endif /* PRIVATE */
#define SO_NUMRCVPKT 0x1112 /* number of datagrams in receive socket buffer */
#ifdef PRIVATE
#define SO_AWDL_UNRESTRICTED 0x1113 /* try to use AWDL in restricted mode */
#define SO_EXTENDED_BK_IDLE 0x1114 /* extended time to keep socket idle after app is suspended (int) */
#define SO_MARK_CELLFALLBACK 0x1115 /* Mark as initiated by cell fallback */
#endif /* PRIVATE */
#define SO_NET_SERVICE_TYPE 0x1116 /* Network service type */
#ifdef PRIVATE
#define SO_QOSMARKING_POLICY_OVERRIDE 0x1117 /* int */
#define SO_INTCOPROC_ALLOW 0x1118 /* Try to use internal co-processor interfaces. */
#endif /* PRIVATE */
#define SO_NETSVC_MARKING_LEVEL 0x1119 /* Get QoS marking in effect for socket */
#ifdef PRIVATE
#define SO_NECP_LISTENUUID 0x1120 /* NECP client UUID for listener */
#define SO_MPKL_SEND_INFO 0x1122 /* (struct so_mpkl_send_info) */
#define SO_STATISTICS_EVENT 0x1123 /* int64 argument, an event in statistics collection */
#define SO_WANT_KEV_SOCKET_CLOSED 0x1124 /* want delivery of KEV_SOCKET_CLOSED (int) */
#endif /* PRIVATE */
/*
* Network Service Type for option SO_NET_SERVICE_TYPE
*
* The vast majority of sockets should use Best Effort that is the default
* Network Service Type. Other Network Service Types have to be used only if
* the traffic actually matches the description of the Network Service Type.
*
* Network Service Types do not represent priorities but rather describe
* different categories of delay, jitter and loss parameters.
* Those parameters may influence protocols from layer 4 protocols like TCP
* to layer 2 protocols like Wi-Fi. The Network Service Type can determine
* how the traffic is queued and scheduled by the host networking stack and
* by other entities on the network like switches and routers. For example
* for Wi-Fi, the Network Service Type can select the marking of the
* layer 2 packet with the appropriate WMM Access Category.
*
* There is no point in attempting to game the system and use
* a Network Service Type that does not correspond to the actual
* traffic characteristic but one that seems to have a higher precedence.
* The reason is that for service classes that have lower tolerance
* for delay and jitter, the queues size is lower than for service
* classes that are more tolerant to delay and jitter.
*
* For example using a voice service type for bulk data transfer will lead
* to disastrous results as soon as congestion happens because the voice
* queue overflows and packets get dropped. This is not only bad for the bulk
* data transfer but it is also bad for VoIP apps that legitimately are using
* the voice service type.
*
* The characteristics of the Network Service Types are based on the service
* classes defined in RFC 4594 "Configuration Guidelines for DiffServ Service
* Classes"
*
* When system detects the outgoing interface belongs to a DiffServ domain
* that follows the recommendation of the IETF draft "Guidelines for DiffServ to
* IEEE 802.11 Mapping", the packet will marked at layer 3 with a DSCP value
* that corresponds to Network Service Type.
*
* NET_SERVICE_TYPE_BE
* "Best Effort", unclassified/standard. This is the default service
* class and cover the majority of the traffic.
*
* NET_SERVICE_TYPE_BK
* "Background", high delay tolerant, loss tolerant. elastic flow,
* variable size & long-lived. E.g: non-interactive network bulk transfer
* like synching or backup.
*
* NET_SERVICE_TYPE_RD
* "Responsive Data", a notch higher than "Best Effort", medium delay
* tolerant, elastic & inelastic flow, bursty, long-lived. E.g. email,
* instant messaging, for which there is a sense of interactivity and
* urgency (user waiting for output).
*
* NET_SERVICE_TYPE_OAM
* "Operations, Administration, and Management", medium delay tolerant,
* low-medium loss tolerant, elastic & inelastic flows, variable size.
* E.g. VPN tunnels.
*
* NET_SERVICE_TYPE_AV
* "Multimedia Audio/Video Streaming", medium delay tolerant, low-medium
* loss tolerant, elastic flow, constant packet interval, variable rate
* and size. E.g. video and audio playback with buffering.
*
* NET_SERVICE_TYPE_RV
* "Responsive Multimedia Audio/Video", low delay tolerant, low-medium
* loss tolerant, elastic flow, variable packet interval, rate and size.
* E.g. screen sharing.
*
* NET_SERVICE_TYPE_VI
* "Interactive Video", low delay tolerant, low-medium loss tolerant,
* elastic flow, constant packet interval, variable rate & size. E.g.
* video telephony.
*
* NET_SERVICE_TYPE_SIG
* "Signaling", low delay tolerant, low loss tolerant, inelastic flow,
* jitter tolerant, rate is bursty but short, variable size. E.g. SIP.
*
* NET_SERVICE_TYPE_VO
* "Interactive Voice", very low delay tolerant, very low loss tolerant,
* inelastic flow, constant packet rate, somewhat fixed size.
* E.g. VoIP.
*/
#define NET_SERVICE_TYPE_BE 0 /* Best effort */
#define NET_SERVICE_TYPE_BK 1 /* Background system initiated */
#define NET_SERVICE_TYPE_SIG 2 /* Signaling */
#define NET_SERVICE_TYPE_VI 3 /* Interactive Video */
#define NET_SERVICE_TYPE_VO 4 /* Interactive Voice */
#define NET_SERVICE_TYPE_RV 5 /* Responsive Multimedia Audio/Video */
#define NET_SERVICE_TYPE_AV 6 /* Multimedia Audio/Video Streaming */
#define NET_SERVICE_TYPE_OAM 7 /* Operations, Administration, and Management */
#define NET_SERVICE_TYPE_RD 8 /* Responsive Data */
#if PRIVATE
#define _NET_SERVICE_TYPE_COUNT 9
#define _NET_SERVICE_TYPE_UNSPEC ((int)-1)
#define IS_VALID_NET_SERVICE_TYPE(c) \
(c >= NET_SERVICE_TYPE_BE && c <= NET_SERVICE_TYPE_RD)
extern const int sotc_by_netservicetype[_NET_SERVICE_TYPE_COUNT];
/*
* Facility to pass Network Service Type values using SO_TRAFFIC_CLASS
* Mostly useful to simplify implementation of frameworks to adopt the new
* Network Service Type values for Signaling.
*/
#define SO_TC_NET_SERVICE_OFFSET 10000
#define SO_TC_NETSVC_SIG (SO_TC_NET_SERVICE_OFFSET + NET_SERVICE_TYPE_SIG)
#endif /* PRIVATE */
/* These are supported values for SO_NETSVC_MARKING_LEVEL */
#define NETSVC_MRKNG_UNKNOWN 0 /* The outgoing network interface is not known */
#define NETSVC_MRKNG_LVL_L2 1 /* Default marking at layer 2 (for example Wi-Fi WMM) */
#define NETSVC_MRKNG_LVL_L3L2_ALL 2 /* Layer 3 DSCP marking and layer 2 marking for all Network Service Types */
#define NETSVC_MRKNG_LVL_L3L2_BK 3 /* The system policy limits layer 3 DSCP marking and layer 2 marking
* to background Network Service Types */
typedef __uint32_t sae_associd_t;
#define SAE_ASSOCID_ANY 0
#define SAE_ASSOCID_ALL ((sae_associd_t)(-1ULL))
typedef __uint32_t sae_connid_t;
#define SAE_CONNID_ANY 0
#define SAE_CONNID_ALL ((sae_connid_t)(-1ULL))
/* connectx() flag parameters */
#define CONNECT_RESUME_ON_READ_WRITE 0x1 /* resume connect() on read/write */
#define CONNECT_DATA_IDEMPOTENT 0x2 /* data is idempotent */
#define CONNECT_DATA_AUTHENTICATED 0x4 /* data includes security that replaces the TFO-cookie */
/* sockaddr endpoints */
typedef struct sa_endpoints {
unsigned int sae_srcif; /* optional source interface */
const struct sockaddr *sae_srcaddr; /* optional source address */
socklen_t sae_srcaddrlen; /* size of source address */
const struct sockaddr *sae_dstaddr; /* destination address */
socklen_t sae_dstaddrlen; /* size of destination address */
} sa_endpoints_t;
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
/*
* Structure used for manipulating linger option.
*/
struct linger {
int l_onoff; /* option on/off */
int l_linger; /* linger time */
};
#ifndef __APPLE__
struct accept_filter_arg {
char af_name[16];
char af_arg[256 - 16];
};
#endif
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#ifdef __APPLE__
/*
* Structure to control non-portable Sockets extension to POSIX
*/
struct so_np_extensions {
u_int32_t npx_flags;
u_int32_t npx_mask;
};
#define SONPX_SETOPTSHUT 0x000000001 /* flag for allowing setsockopt after shutdown */
#ifdef KERNEL_PRIVATE
#define SONPX_MASK_VALID (SONPX_SETOPTSHUT)
#define IS_SO_TC_BACKGROUND(_tc_) ((_tc_) == SO_TC_BK || (_tc_) == SO_TC_BK_SYS)
#define IS_SO_TC_BACKGROUNDSYSTEM(_tc_) ((_tc_) == SO_TC_BK_SYS)
#endif /* KERNEL_PRIVATE */
#endif
#endif
/*
* Level number for (get/set)sockopt() to apply to socket itself.
*/
#define SOL_SOCKET 0xffff /* options for socket level */
/*
* Address families.
*/
#define AF_UNSPEC 0 /* unspecified */
#define AF_UNIX 1 /* local to host (pipes) */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define AF_LOCAL AF_UNIX /* backward compatibility */
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
#define AF_INET 2 /* internetwork: UDP, TCP, etc. */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define AF_IMPLINK 3 /* arpanet imp addresses */
#define AF_PUP 4 /* pup protocols: e.g. BSP */
#define AF_CHAOS 5 /* mit CHAOS protocols */
#define AF_NS 6 /* XEROX NS protocols */
#define AF_ISO 7 /* ISO protocols */
#define AF_OSI AF_ISO
#define AF_ECMA 8 /* European computer manufacturers */
#define AF_DATAKIT 9 /* datakit protocols */
#define AF_CCITT 10 /* CCITT protocols, X.25 etc */
#define AF_SNA 11 /* IBM SNA */
#define AF_DECnet 12 /* DECnet */
#define AF_DLI 13 /* DEC Direct data link interface */
#define AF_LAT 14 /* LAT */
#define AF_HYLINK 15 /* NSC Hyperchannel */
#define AF_APPLETALK 16 /* Apple Talk */
#define AF_ROUTE 17 /* Internal Routing Protocol */
#define AF_LINK 18 /* Link layer interface */
#define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */
#define AF_COIP 20 /* connection-oriented IP, aka ST II */
#define AF_CNT 21 /* Computer Network Technology */
#define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */
#define AF_IPX 23 /* Novell Internet Protocol */
#define AF_SIP 24 /* Simple Internet Protocol */
#define pseudo_AF_PIP 25 /* Help Identify PIP packets */
#define AF_NDRV 27 /* Network Driver 'raw' access */
#define AF_ISDN 28 /* Integrated Services Digital Network */
#define AF_E164 AF_ISDN /* CCITT E.164 recommendation */
#define pseudo_AF_KEY 29 /* Internal key-management function */
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
#define AF_INET6 30 /* IPv6 */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define AF_NATM 31 /* native ATM access */
#define AF_SYSTEM 32 /* Kernel event messages */
#define AF_NETBIOS 33 /* NetBIOS */
#define AF_PPP 34 /* PPP communication protocol */
#define pseudo_AF_HDRCMPLT 35 /* Used by BPF to not rewrite headers
* in interface output routine */
#ifdef PRIVATE
#define AF_AFP 36 /* Used by AFP */
#else
#define AF_RESERVED_36 36 /* Reserved for internal usage */
#endif
#define AF_IEEE80211 37 /* IEEE 802.11 protocol */
#define AF_UTUN 38
#ifdef PRIVATE
#define AF_MULTIPATH 39
#endif /* PRIVATE */
#define AF_VSOCK 40 /* VM Sockets */
#define AF_MAX 41
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
/*
* [XSI] Structure used by kernel to store most addresses.
*/
struct sockaddr {
__uint8_t sa_len; /* total length */
sa_family_t sa_family; /* [XSI] address family */
char sa_data[14]; /* [XSI] addr value (actually larger) */
};
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define SOCK_MAXADDRLEN 255 /* longest possible addresses */
/*
* Structure used by kernel to pass protocol
* information in raw sockets.
*/
struct sockproto {
__uint16_t sp_family; /* address family */
__uint16_t sp_protocol; /* protocol */
};
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
/*
* RFC 2553: protocol-independent placeholder for socket addresses
*/
#define _SS_MAXSIZE 128
#define _SS_ALIGNSIZE (sizeof(__int64_t))
#define _SS_PAD1SIZE \
(_SS_ALIGNSIZE - sizeof(__uint8_t) - sizeof(sa_family_t))
#define _SS_PAD2SIZE \
(_SS_MAXSIZE - sizeof(__uint8_t) - sizeof(sa_family_t) - \
_SS_PAD1SIZE - _SS_ALIGNSIZE)
/*
* [XSI] sockaddr_storage
*/
struct sockaddr_storage {
__uint8_t ss_len; /* address length */
sa_family_t ss_family; /* [XSI] address family */
char __ss_pad1[_SS_PAD1SIZE];
__int64_t __ss_align; /* force structure storage alignment */
char __ss_pad2[_SS_PAD2SIZE];
};
/*
* Protocol families, same as address families for now.
*/
#define PF_UNSPEC AF_UNSPEC
#define PF_LOCAL AF_LOCAL
#define PF_UNIX PF_LOCAL /* backward compatibility */
#define PF_INET AF_INET
#define PF_IMPLINK AF_IMPLINK
#define PF_PUP AF_PUP
#define PF_CHAOS AF_CHAOS
#define PF_NS AF_NS
#define PF_ISO AF_ISO
#define PF_OSI AF_ISO
#define PF_ECMA AF_ECMA
#define PF_DATAKIT AF_DATAKIT
#define PF_CCITT AF_CCITT
#define PF_SNA AF_SNA
#define PF_DECnet AF_DECnet
#define PF_DLI AF_DLI
#define PF_LAT AF_LAT
#define PF_HYLINK AF_HYLINK
#define PF_APPLETALK AF_APPLETALK
#define PF_ROUTE AF_ROUTE
#define PF_LINK AF_LINK
#define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */
#define PF_COIP AF_COIP
#define PF_CNT AF_CNT
#define PF_SIP AF_SIP
#define PF_IPX AF_IPX /* same format as AF_NS */
#define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */
#define PF_PIP pseudo_AF_PIP
#define PF_NDRV AF_NDRV
#define PF_ISDN AF_ISDN
#define PF_KEY pseudo_AF_KEY
#define PF_INET6 AF_INET6
#define PF_NATM AF_NATM
#define PF_SYSTEM AF_SYSTEM
#define PF_NETBIOS AF_NETBIOS
#define PF_PPP AF_PPP
#ifdef PRIVATE
#define PF_AFP AF_AFP
#else
#define PF_RESERVED_36 AF_RESERVED_36
#endif
#define PF_UTUN AF_UTUN
#ifdef PRIVATE
#define PF_MULTIPATH AF_MULTIPATH
#endif /* PRIVATE */
#define PF_VSOCK AF_VSOCK
#define PF_MAX AF_MAX
/*
* These do not have socket-layer support:
*/
#define PF_VLAN ((uint32_t)0x766c616e) /* 'vlan' */
#define PF_BOND ((uint32_t)0x626f6e64) /* 'bond' */
#ifdef KERNEL_PRIVATE
#define PF_BRIDGE ((uint32_t)0x62726467) /* 'brdg' */
#define PF_802154 ((uint32_t)0x38313534) /* '8154' */
#endif /* KERNEL_PRIVATE */
/*
* Definitions for network related sysctl, CTL_NET.
*
* Second level is protocol family.
* Third level is protocol number.
*
* Further levels are defined by the individual families below.
*/
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define NET_MAXID AF_MAX
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
#ifdef KERNEL_PRIVATE
#define CTL_NET_NAMES { \
{ 0, 0 }, \
{ "local", CTLTYPE_NODE }, \
{ "inet", CTLTYPE_NODE }, \
{ "implink", CTLTYPE_NODE }, \
{ "pup", CTLTYPE_NODE }, \
{ "chaos", CTLTYPE_NODE }, \
{ "xerox_ns", CTLTYPE_NODE }, \
{ "iso", CTLTYPE_NODE }, \
{ "emca", CTLTYPE_NODE }, \
{ "datakit", CTLTYPE_NODE }, \
{ "ccitt", CTLTYPE_NODE }, \
{ "ibm_sna", CTLTYPE_NODE }, \
{ "decnet", CTLTYPE_NODE }, \
{ "dec_dli", CTLTYPE_NODE }, \
{ "lat", CTLTYPE_NODE }, \
{ "hylink", CTLTYPE_NODE }, \
{ "appletalk", CTLTYPE_NODE }, \
{ "route", CTLTYPE_NODE }, \
{ "link_layer", CTLTYPE_NODE }, \
{ "xtp", CTLTYPE_NODE }, \
{ "coip", CTLTYPE_NODE }, \
{ "cnt", CTLTYPE_NODE }, \
{ "rtip", CTLTYPE_NODE }, \
{ "ipx", CTLTYPE_NODE }, \
{ "sip", CTLTYPE_NODE }, \
{ "pip", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ "ndrv", CTLTYPE_NODE }, \
{ "isdn", CTLTYPE_NODE }, \
{ "key", CTLTYPE_NODE }, \
{ "inet6", CTLTYPE_NODE }, \
{ "natm", CTLTYPE_NODE }, \
{ "sys", CTLTYPE_NODE }, \
{ "netbios", CTLTYPE_NODE }, \
{ "ppp", CTLTYPE_NODE }, \
{ "hdrcomplete", CTLTYPE_NODE }, \
{ "vsock", CTLTYPE_NODE }, \
}
#endif /* KERNEL_PRIVATE */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
/*
* PF_ROUTE - Routing table
*
* Three additional levels are defined:
* Fourth: address family, 0 is wildcard
* Fifth: type of info, defined below
* Sixth: flag(s) to mask with for NET_RT_FLAGS
*/
#define NET_RT_DUMP 1 /* dump; may limit to a.f. */
#define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */
#define NET_RT_IFLIST 3 /* survey interface list */
#define NET_RT_STAT 4 /* routing statistics */
#define NET_RT_TRASH 5 /* routes not in table but not freed */
#define NET_RT_IFLIST2 6 /* interface list with addresses */
#define NET_RT_DUMP2 7 /* dump; may limit to a.f. */
#ifdef PRIVATE
#define NET_RT_DUMPX 8 /* private */
#define NET_RT_DUMPX_FLAGS 9 /* private */
#endif /* PRIVATE */
/*
* Allows read access non-local host's MAC address
* if the process has neighbor cache entitlement.
*/
#define NET_RT_FLAGS_PRIV 10
#define NET_RT_MAXID 11
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
#ifdef PRIVATE
/* These are supported values for SO_STATISTICS_EVENT */
#define SO_STATISTICS_EVENT_ENTER_CELLFALLBACK (1 << 0)
#define SO_STATISTICS_EVENT_EXIT_CELLFALLBACK (1 << 1)
#define SO_STATISTICS_EVENT_RESERVED_1 (1 << 2)
#define SO_STATISTICS_EVENT_RESERVED_2 (1 << 3)
#endif /* PRIVATE */
#ifdef KERNEL_PRIVATE
#define CTL_NET_RT_NAMES { \
{ 0, 0 }, \
{ "dump", CTLTYPE_STRUCT }, \
{ "flags", CTLTYPE_STRUCT }, \
{ "iflist", CTLTYPE_STRUCT }, \
{ "stat", CTLTYPE_STRUCT }, \
{ "trash", CTLTYPE_INT }, \
{ "iflist2", CTLTYPE_STRUCT }, \
{ "dump2", CTLTYPE_STRUCT }, \
{ "dumpx", CTLTYPE_STRUCT }, \
{ "dumpx_flags", CTLTYPE_STRUCT }, \
}
#endif /* KERNEL_PRIVATE */
/*
* Maximum queue length specifiable by listen.
*/
#define SOMAXCONN 128
/*
* [XSI] Message header for recvmsg and sendmsg calls.
* Used value-result for recvmsg, value only for sendmsg.
*/
struct msghdr {
void *msg_name; /* [XSI] optional address */
socklen_t msg_namelen; /* [XSI] size of address */
struct iovec *msg_iov; /* [XSI] scatter/gather array */
int msg_iovlen; /* [XSI] # elements in msg_iov */
void *msg_control; /* [XSI] ancillary data, see below */
socklen_t msg_controllen; /* [XSI] ancillary data buffer len */
int msg_flags; /* [XSI] flags on received message */
};
#ifdef PRIVATE
/*
* Extended version for sendmsg_x() and recvmsg_x() calls
*
* For recvmsg_x(), the size of the data received is given by the field
* msg_datalen.
*
* For sendmsg_x(), the size of the data to send is given by the length of
* the iovec array -- like sendmsg(). The field msg_datalen is ignored.
*/
struct msghdr_x {
void *msg_name; /* optional address */
socklen_t msg_namelen; /* size of address */
struct iovec *msg_iov; /* scatter/gather array */
int msg_iovlen; /* # elements in msg_iov */
void *msg_control; /* ancillary data, see below */
socklen_t msg_controllen; /* ancillary data buffer len */
int msg_flags; /* flags on received message */
size_t msg_datalen; /* byte length of buffer in msg_iov */
};
#endif /* PRIVATE */
#ifdef XNU_KERNEL_PRIVATE
/*
* In-kernel representation of "struct msghdr" from
* userspace. Has enough precision for 32-bit or
* 64-bit clients, but does not need to be packed.
*/
struct user_msghdr {
user_addr_t msg_name; /* optional address */
socklen_t msg_namelen; /* size of address */
user_addr_t msg_iov; /* scatter/gather array */
int msg_iovlen; /* # elements in msg_iov */
user_addr_t msg_control; /* ancillary data, see below */
socklen_t msg_controllen; /* ancillary data buffer len */
int msg_flags; /* flags on received message */
};
/*
* LP64 user version of struct msghdr.
* WARNING - keep in sync with struct msghdr
*/
struct user64_msghdr {
user64_addr_t msg_name; /* optional address */
socklen_t msg_namelen; /* size of address */
user64_addr_t msg_iov; /* scatter/gather array */
int msg_iovlen; /* # elements in msg_iov */
user64_addr_t msg_control; /* ancillary data, see below */
socklen_t msg_controllen; /* ancillary data buffer len */
int msg_flags; /* flags on received message */
};
/*
* ILP32 user version of struct msghdr.
* WARNING - keep in sync with struct msghdr
*/
struct user32_msghdr {
user32_addr_t msg_name; /* optional address */
socklen_t msg_namelen; /* size of address */
user32_addr_t msg_iov; /* scatter/gather array */
int msg_iovlen; /* # elements in msg_iov */
user32_addr_t msg_control; /* ancillary data, see below */
socklen_t msg_controllen; /* ancillary data buffer len */
int msg_flags; /* flags on received message */
};
/*
* In-kernel representation of "struct msghdr_x" from
* userspace. Has enough precision for 32-bit or
* 64-bit clients, but does not need to be packed.
*/
struct user_msghdr_x {
user_addr_t msg_name; /* optional address */
socklen_t msg_namelen; /* size of address */
user_addr_t msg_iov; /* scatter/gather array */
int msg_iovlen; /* # elements in msg_iov */
user_addr_t msg_control; /* ancillary data, see below */
socklen_t msg_controllen; /* ancillary data buffer len */
int msg_flags; /* flags on received message */
size_t msg_datalen; /* byte length of buffer in msg_iov */
};
/*
* LP64 user version of struct msghdr_x
* WARNING - keep in sync with struct msghdr_x
*/
struct user64_msghdr_x {
user64_addr_t msg_name; /* optional address */
socklen_t msg_namelen; /* size of address */
user64_addr_t msg_iov; /* scatter/gather array */
int msg_iovlen; /* # elements in msg_iov */
user64_addr_t msg_control; /* ancillary data, see below */
socklen_t msg_controllen; /* ancillary data buffer len */
int msg_flags; /* flags on received message */
user64_size_t msg_datalen; /* byte length of buffer in msg_iov */
};
/*
* ILP32 user version of struct msghdr_x
* WARNING - keep in sync with struct msghdr_x
*/
struct user32_msghdr_x {
user32_addr_t msg_name; /* optional address */
socklen_t msg_namelen; /* size of address */
user32_addr_t msg_iov; /* scatter/gather array */
int msg_iovlen; /* # elements in msg_iov */
user32_addr_t msg_control; /* ancillary data, see below */
socklen_t msg_controllen; /* ancillary data buffer len */
int msg_flags; /* flags on received message */
user32_size_t msg_datalen; /* byte length of buffer in msg_iov */
};
/*
* In-kernel representation of "struct sa_endpoints" from
* userspace. Has enough precision for 32-bit or
* 64-bit clients, but does not need to be packed.
*/
struct user_sa_endpoints {
unsigned int sae_srcif; /* optional source interface */
user_addr_t sae_srcaddr; /* optional source address */
socklen_t sae_srcaddrlen; /* size of source address */
user_addr_t sae_dstaddr; /* destination address */
socklen_t sae_dstaddrlen; /* size of destination address */
};
/*
* LP64 user version of struct sa_endpoints
* WARNING - keep in sync with struct sa_endpoints
*/
struct user64_sa_endpoints {
unsigned int sae_srcif; /* optional source interface */
user64_addr_t sae_srcaddr; /* optional source address */
socklen_t sae_srcaddrlen; /* size of source address */
user64_addr_t sae_dstaddr; /* destination address */
socklen_t sae_dstaddrlen; /* size of destination address */
};
/*
* ILP32 user version of struct sa_endpoints
* WARNING - keep in sync with struct sa_endpoints
*/
struct user32_sa_endpoints {
unsigned int sae_srcif; /* optional source interface */
user32_addr_t sae_srcaddr; /* optional source address */
socklen_t sae_srcaddrlen; /* size of source address */
user32_addr_t sae_dstaddr; /* destination address */
socklen_t sae_dstaddrlen; /* size of destination address */
};
#endif /* XNU_KERNEL_PRIVATE */
#define MSG_OOB 0x1 /* process out-of-band data */
#define MSG_PEEK 0x2 /* peek at incoming message */
#define MSG_DONTROUTE 0x4 /* send without using routing tables */
#define MSG_EOR 0x8 /* data completes record */
#define MSG_TRUNC 0x10 /* data discarded before delivery */
#define MSG_CTRUNC 0x20 /* control data lost before delivery */
#define MSG_WAITALL 0x40 /* wait for full request or error */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
#define MSG_EOF 0x100 /* data completes connection */