/*
- * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2019 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
- *
* 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
+ * 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,
* 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) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
-/*-
+/*
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* @(#)socketvar.h 8.3 (Berkeley) 2/19/95
* $FreeBSD: src/sys/sys/socketvar.h,v 1.46.2.6 2001/08/31 13:45:49 jlemon 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_SOCKETVAR_H_
#define _SYS_SOCKETVAR_H_
#include <sys/appleapiopts.h>
-#include <sys/queue.h> /* for TAILQ macros */
-#include <sys/select.h> /* for struct selinfo */
+#include <sys/cdefs.h>
+#include <sys/types.h> /* u_quad_t */
+#ifdef KERNEL_PRIVATE
+#include <sys/queue.h> /* for TAILQ macros */
+#include <sys/select.h> /* for struct selinfo */
#include <net/kext_net.h>
#include <sys/ev.h>
-/*
- * Hacks to get around compiler complaints
- */
+#include <uuid/uuid.h>
+#ifdef BSD_KERNEL_PRIVATE
+#include <sys/eventhandler.h>
+#endif /* BSD_KERNEL_PRIVATE */
+#endif /* KERNEL_PRIVATE */
+
+typedef u_quad_t so_gen_t;
+
+#ifdef KERNEL_PRIVATE
struct mbuf;
-struct kextcb;
+struct socket_filter_entry;
struct protosw;
struct sockif;
struct sockutil;
/* strings for sleep message: */
-#ifdef __APPLE_API_UNSTABLE
-extern char netio[], netcon[], netcls[];
-#define SOCKET_CACHE_ON
-#define SO_CACHE_FLUSH_INTERVAL 1 /* Seconds */
-#define SO_CACHE_TIME_LIMIT (120/SO_CACHE_FLUSH_INTERVAL) /* Seconds */
-#define SO_CACHE_MAX_FREE_BATCH 50
-#define MAX_CACHED_SOCKETS 60000
-#define TEMPDEBUG 0
+extern char netio[], netcon[], netcls[];
+#define SOCKET_CACHE_ON
+#define SO_CACHE_FLUSH_INTERVAL 1 /* Seconds */
+#define SO_CACHE_TIME_LIMIT (120/SO_CACHE_FLUSH_INTERVAL) /* Seconds */
+#define SO_CACHE_MAX_FREE_BATCH 50
+#define MAX_CACHED_SOCKETS 512
+#define TEMPDEBUG 0
+#endif /* KERNEL_PRIVATE */
+
+#ifdef PRIVATE
+#define SO_TC_STATS_MAX 4
+
+struct data_stats {
+ u_int64_t rxpackets;
+ u_int64_t rxbytes;
+ u_int64_t txpackets;
+ u_int64_t txbytes;
+};
+
+#define MSG_PRI_0 0 /* TCP message priority, lowest */
+#define MSG_PRI_1 1
+#define MSG_PRI_2 2
+#define MSG_PRI_3 3 /* TCP message priority, highest */
+#define MSG_PRI_MAX MSG_PRI_3
+#define MSG_PRI_MIN MSG_PRI_0
+#define MSG_PRI_COUNT 4
+#define MSG_PRI_DEFAULT MSG_PRI_1
+#endif /* PRIVATE */
+
+#ifdef KERNEL_PRIVATE
+/* State for TCP message send or receive */
+struct msg_priq {
+ struct mbuf *msgq_head; /* first mbuf in the queue */
+ struct mbuf *msgq_tail; /* last mbuf in the queue */
+ struct mbuf *msgq_lastmsg; /* last message in the queue */
+ u_int32_t msgq_flags; /* flags per priority queue */
+#define MSGQ_MSG_NOTDONE 0x1 /* set when EOR of a msg is not seen */
+ u_int32_t msgq_bytes; /* data bytes in this queue */
+};
+
+struct msg_state {
+ struct msg_priq msg_priq[MSG_PRI_COUNT]; /* priority queues */
+ u_int32_t msg_serial_bytes; /* bytes moved to serial queue */
+ u_int32_t msg_uno_bytes; /* out-of-order chars in rcv buffer */
+};
+
+/* mbuf flag used to indicate out of order data received */
+#define M_UNORDERED_DATA M_PROTO1
/*
* Kernel structure per socket.
* handle on protocol and pointer to protocol
* private data and error information.
*/
-typedef u_quad_t so_gen_t;
-
-#ifndef __APPLE__
-/* We don't support BSD style socket filters */
-struct accept_filter;
-#endif
-
struct socket {
- int so_zone; /* zone we were allocated from */
- short so_type; /* generic type, see socket.h */
- short so_options; /* from socket call, see socket.h */
- short so_linger; /* time to linger while closing */
- short so_state; /* internal state flags SS_*, below */
- caddr_t so_pcb; /* protocol control block */
- struct protosw *so_proto; /* protocol handle */
-/*
- * Variables for connection queuing.
- * Socket where accepts occur is so_head in all subsidiary sockets.
- * If so_head is 0, socket is not related to an accept.
- * For head socket so_incomp queues partially completed connections,
- * while so_comp is a queue of connections ready to be accepted.
- * If a connection is aborted and it has so_head set, then
- * it has to be pulled out of either so_incomp or so_comp.
- * We allow connections to queue up based on current queue lengths
- * and limit on number of queued connections for this socket.
- */
- struct socket *so_head; /* back pointer to accept socket */
- TAILQ_HEAD(, socket) so_incomp; /* queue of partial unaccepted connections */
- TAILQ_HEAD(, socket) so_comp; /* queue of complete unaccepted connections */
- TAILQ_ENTRY(socket) so_list; /* list of unaccepted connections */
- short so_qlen; /* number of unaccepted connections */
- short so_incqlen; /* number of unaccepted incomplete
- connections */
- short so_qlimit; /* max number queued connections */
- short so_timeo; /* connection timeout */
- u_short so_error; /* error affecting connection */
- pid_t so_pgid; /* pgid for signals */
- u_long so_oobmark; /* chars to oob mark */
-#ifndef __APPLE__
- /* We don't support AIO ops */
- TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */
-#endif
-/*
- * Variables for socket buffering.
- */
- struct sockbuf {
- u_long sb_cc; /* actual chars in buffer */
- u_long sb_hiwat; /* max actual char count */
- u_long sb_mbcnt; /* chars of mbufs used */
- u_long sb_mbmax; /* max chars of mbufs to use */
- long sb_lowat; /* low water mark */
- struct mbuf *sb_mb; /* the mbuf chain */
-#if __APPLE__
- struct socket *sb_so; /* socket back ptr for kexts */
-#endif
- struct selinfo sb_sel; /* process selecting read/write */
- short sb_flags; /* flags, see below */
- short sb_timeo; /* timeout for read/write */
- void *reserved1; /* for future use if needed */
- void *reserved2;
+ int so_zone; /* zone we were allocated from */
+ short so_type; /* generic type, see socket.h */
+ u_short so_error; /* error affecting connection */
+ u_int32_t so_options; /* from socket call, see socket.h */
+ short so_linger; /* time to linger while closing */
+ short so_state; /* internal state flags SS_*, below */
+ void *so_pcb; /* protocol control block */
+ struct protosw *so_proto; /* protocol handle */
+ /*
+ * Variables for connection queueing.
+ * Socket where accepts occur is so_head in all subsidiary sockets.
+ * If so_head is 0, socket is not related to an accept.
+ * For head socket so_incomp queues partially completed connections,
+ * while so_comp is a queue of connections ready to be accepted.
+ * If a connection is aborted and it has so_head set, then
+ * it has to be pulled out of either so_incomp or so_comp.
+ * We allow connections to queue up based on current queue lengths
+ * and limit on number of queued connections for this socket.
+ */
+ struct socket *so_head; /* back pointer to accept socket */
+ TAILQ_HEAD(, socket) so_incomp; /* q of partially unaccepted conns */
+ TAILQ_HEAD(, socket) so_comp; /* q of complete unaccepted conns */
+ TAILQ_ENTRY(socket) so_list; /* list of unaccepted connections */
+ short so_qlen; /* number of unaccepted connections */
+ short so_incqlen; /* number of unaccepted incomplete
+ * connections */
+ short so_qlimit; /* max number queued connections */
+ short so_timeo; /* connection timeout */
+ pid_t so_pgid; /* pgid for signals */
+ u_int32_t so_oobmark; /* chars to oob mark */
+ /*
+ * Variables for socket buffering.
+ */
+ struct sockbuf {
+ u_int32_t sb_cc; /* actual chars in buffer */
+ u_int32_t sb_hiwat; /* max actual char count */
+ u_int32_t sb_mbcnt; /* chars of mbufs used */
+ u_int32_t sb_mbmax; /* max chars of mbufs to use */
+ u_int32_t sb_ctl; /* non-data chars in buffer */
+ u_int32_t sb_lowat; /* low water mark */
+ struct mbuf *sb_mb; /* the mbuf chain */
+ struct mbuf *sb_mbtail; /* the last mbuf in the chain */
+ struct mbuf *sb_lastrecord; /* first mbuf of last record */
+ struct socket *sb_so; /* socket back ptr for kexts */
+ struct selinfo sb_sel; /* process selecting rd/wr */
+ struct timeval sb_timeo; /* timeout for read/write */
+ u_int32_t sb_flags; /* flags, see below */
+ u_int32_t sb_idealsize; /* Ideal size for the sb based
+ * on bandwidth and delay */
+ void (*sb_upcall)(struct socket *, void *arg, int waitf);
+ void *sb_upcallarg; /* Arg for above */
+ u_int32_t sb_wantlock; /* # of SB_LOCK waiters */
+ u_int32_t sb_waiters; /* # of data/space waiters */
+ thread_t sb_cfil_thread; /* content filter thread */
+ u_int32_t sb_cfil_refs; /* # of nested calls */
+ u_int32_t sb_preconn_hiwat; /* preconnect hiwat mark */
} so_rcv, so_snd;
-#define SB_MAX (256*1024) /* default for max chars in sockbuf */
-#define SB_LOCK 0x01 /* lock on data queue */
-#define SB_WANT 0x02 /* someone is waiting to lock */
-#define SB_WAIT 0x04 /* someone is waiting for data/space */
-#define SB_SEL 0x08 /* someone is selecting */
-#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */
-#define SB_UPCALL 0x20 /* someone wants an upcall */
-#define SB_NOINTR 0x40 /* operations not interruptible */
-#define SB_KNOTE 0x100 /* kernel note attached */
-#ifndef __APPLE__
-#define SB_AIO 0x80 /* AIO operations queued */
-#else
-#define SB_NOTIFY (SB_WAIT|SB_SEL|SB_ASYNC)
-#define SB_RECV 0x8000 /* this is rcv sb */
-
- caddr_t so_tpcb; /* Wisc. protocol control block - XXX unused? */
-#endif
+#define SB_MAX (8192*1024) /* default for max chars in sockbuf */
+#define LOW_SB_MAX (2*9*1024) /* lower limit on max socket buffer
+ * size, 2 max datagrams */
+#define SB_LOCK 0x1 /* lock on data queue */
+#define SB_NOINTR 0x2 /* operations not interruptible */
+#define SB_RECV 0x4 /* this is rcv sb */
+#define SB_SEL 0x8 /* someone is selecting */
+#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */
+#define SB_UPCALL 0x20 /* someone wants an upcall */
+#define SB_KNOTE 0x40 /* kernel note attached */
+#define SB_DROP 0x80 /* does not accept any more data */
+#define SB_UNIX 0x100 /* UNIX domain socket buffer */
+#define SB_USRSIZE 0x200 /* user specified sbreserve */
+#define SB_AUTOSIZE 0x400 /* automatically size socket buffer */
+#define SB_TRIM 0x800 /* Trim the socket buffer */
+#define SB_NOCOMPRESS 0x1000 /* do not compress socket buffer */
+#define SB_SNDBYTE_CNT 0x2000 /* keep track of snd bytes per interface */
+#define SB_UPCALL_LOCK 0x4000 /* Keep socket locked when doing the upcall */
+ caddr_t so_tpcb; /* Misc. protocol control block, used
+ * by some kexts */
- void (*so_upcall) __P((struct socket *so, caddr_t arg, int waitf));
- caddr_t so_upcallarg; /* Arg for above */
- uid_t so_uid; /* who opened the socket */
+ void (*so_event)(struct socket *, void *, u_int32_t);
+ void *so_eventarg; /* Arg for above */
+ kauth_cred_t so_cred; /* cred of who opened the socket */
/* NB: generation count must not be first; easiest to make it last. */
- so_gen_t so_gencnt; /* generation count */
-#ifndef __APPLE__
- void *so_emuldata; /* private data for emulators */
- struct so_accf {
- struct accept_filter *so_accept_filter;
- void *so_accept_filter_arg; /* saved filter args */
- char *so_accept_filter_str; /* saved user args */
- } *so_accf;
-#else
- TAILQ_HEAD(,eventqelt) so_evlist;
- int cached_in_sock_layer; /* Is socket bundled with pcb/pcb.inp_ppcb? */
- struct socket *cache_next;
- struct socket *cache_prev;
- u_long cache_timestamp;
- caddr_t so_saved_pcb; /* Saved pcb when cacheing */
- struct mbuf *so_temp; /* Holding area for outbound frags */
- /* Plug-in support - make the socket interface overridable */
- struct mbuf *so_tail;
- struct kextcb *so_ext; /* NKE hook */
- u_long so_flags; /* Flags */
-#define SOF_NOSIGPIPE 0x00000001
-#define SOF_NOADDRAVAIL 0x00000002 /* returns EADDRNOTAVAIL if src address is gone */
- void *reserved2;
- void *reserved3;
- void *reserved4;
+ so_gen_t so_gencnt; /* generation count */
+ TAILQ_HEAD(, eventqelt) so_evlist;
+ STAILQ_ENTRY(socket) so_cache_ent; /* socache entry */
+ caddr_t so_saved_pcb; /* Saved pcb when cacheing */
+ u_int32_t cache_timestamp; /* time socket was cached */
+
+ pid_t last_pid; /* pid of most recent accessor */
+ u_int64_t last_upid; /* upid of most recent accessor */
+
+ struct socket_filter_entry *so_filt; /* NKE hook */
+ u_int32_t so_flags; /* Flags */
+#define SOF_NOSIGPIPE 0x00000001
+#define SOF_NOADDRAVAIL 0x00000002 /* EADDRNOTAVAIL if src addr is gone */
+#define SOF_PCBCLEARING 0x00000004 /* pru_disconnect done; don't
+ * call pru_detach */
+#define SOF_DEFUNCT 0x00000008 /* socket marked as inactive */
+#define SOF_CLOSEWAIT 0x00000010 /* blocked in close awaiting some events */
+#define SOF_REUSESHAREUID 0x00000040 /* Allows SO_REUSEADDR/SO_REUSEPORT
+ * for multiple so_uid */
+#define SOF_MULTIPAGES 0x00000080 /* jumbo clusters may be used for sosend */
+#define SOF_ABORTED 0x00000100 /* soabort was already called once */
+#define SOF_OVERFLOW 0x00000200 /* socket was dropped as overflow of
+ * listen q */
+#define SOF_NOTIFYCONFLICT 0x00000400 /* notify that a bind was done on a
+ * port already in use */
+#define SOF_UPCALLCLOSEWAIT 0x00000800 /* block close until upcall returns */
+#define SOF_BINDRANDOMPORT 0x00001000 /* Randomized port number for bind */
+#define SOF_NPX_SETOPTSHUT 0x00002000 /* Non POSIX extension to allow
+ * setsockopt(2) after shut down */
+#define SOF_RECV_TRAFFIC_CLASS 0x00004000 /* Receive TC as ancillary data */
+#define SOF_NODEFUNCT 0x00008000 /* socket cannot be defunct'd */
+#define SOF_PRIVILEGED_TRAFFIC_CLASS 0x00010000 /* traffic class is privileged */
+#define SOF_SUSPENDED 0x00020000 /* i/f output queue is suspended */
+#define SOF_INCOMP_INPROGRESS 0x00040000 /* incomp socket is being processed */
+#define SOF_NOTSENT_LOWAT 0x00080000 /* A different lowat on not sent
+ * data has been set */
+#define SOF_KNOTE 0x00100000 /* socket is on the EV_SOCK klist */
+#define SOF_USELRO 0x00200000 /* TCP must use LRO on these sockets */
+#define SOF_ENABLE_MSGS 0x00400000 /* TCP must enable message delivery */
+#define SOF_FLOW_DIVERT 0x00800000 /* Flow Divert is enabled */
+#define SOF_MP_SUBFLOW 0x01000000 /* is a multipath subflow socket */
+#define SOF_MP_SEC_SUBFLOW 0x04000000 /* Set up secondary flow */
+#define SOF_MP_TRYFAILOVER 0x08000000 /* Failing subflow */
+#define SOF_DELEGATED 0x10000000 /* on behalf of another process */
+#define SOF_CONTENT_FILTER 0x20000000 /* Content filter enabled */
+
+ uint32_t so_upcallusecount; /* number of upcalls in progress */
+ int so_usecount; /* refcounting of socket use */
+ int so_retaincnt;
+ u_int32_t so_filteruse; /* usecount for the socket filters */
+ u_int16_t so_traffic_class;
+ int8_t so_netsvctype;
+ u_int8_t so_restrictions;
+ thread_t so_send_filt_thread;
+
+ /* for debug pruposes */
+#define SO_LCKDBG_MAX 4 /* number of debug locking Link Registers recorded */
+ void *lock_lr[SO_LCKDBG_MAX]; /* locking calling history */
+ void *unlock_lr[SO_LCKDBG_MAX]; /* unlocking caller history */
+ u_int8_t next_lock_lr;
+ u_int8_t next_unlock_lr;
+
+ u_int16_t so_pktheadroom; /* headroom before packet payload */
+
+ u_int32_t so_ifdenied_notifies; /* # of notifications generated */
+
+ struct label *so_label; /* MAC label for socket */
+ struct label *so_peerlabel; /* cached MAC label for socket peer */
+ thread_t so_background_thread; /* thread that marked
+ * this socket background */
+ struct data_stats so_tc_stats[SO_TC_STATS_MAX];
+ struct klist so_klist; /* klist for EV_SOCK events */
+
+ struct msg_state *so_msg_state; /* unordered snd/rcv state */
+ struct flow_divert_pcb *so_fd_pcb; /* Flow Divert control block */
+
+#if CONTENT_FILTER
+ struct cfil_info *so_cfil;
+ struct cfil_db *so_cfil_db;
+ u_int32_t so_state_change_cnt; /* incr for each connect, disconnect */
#endif
+
+ u_int32_t so_eventmask; /* event mask */
+
+ pid_t e_pid; /* pid of the effective owner */
+ u_int64_t e_upid; /* upid of the effective owner */
+
+ uuid_t last_uuid; /* uuid of most recent accessor */
+ uuid_t e_uuid; /* uuid of effective owner */
+ uuid_t so_vuuid; /* UUID of the Voucher originator */
+
+ int32_t so_policy_gencnt; /* UUID policy gencnt */
+
+ u_int32_t so_flags1;
+#define SOF1_POST_FALLBACK_SYNC 0x00000001 /* fallback to TCP */
+#define SOF1_AWDL_PRIVILEGED 0x00000002 /* unused */
+#define SOF1_IF_2KCL 0x00000004 /* interface prefers 2 KB clusters */
+#define SOF1_DEFUNCTINPROG 0x00000008
+#define SOF1_DATA_IDEMPOTENT 0x00000010 /* idempotent data for TFO */
+#define SOF1_PRECONNECT_DATA 0x00000020 /* request for preconnect data */
+#define SOF1_EXTEND_BK_IDLE_WANTED 0x00000040 /* option set */
+#define SOF1_EXTEND_BK_IDLE_INPROG 0x00000080 /* socket */
+#define SOF1_CACHED_IN_SOCK_LAYER 0x00000100 /* bundled with inpcb and
+ * tcpcb */
+#define SOF1_TFO_REWIND 0x00000200 /* rewind mptcp meta data */
+#define SOF1_CELLFALLBACK 0x00000400 /* Initiated by cell fallback */
+#define SOF1_QOSMARKING_ALLOWED 0x00000800 /* policy allows DSCP map */
+#define SOF1_TC_NET_SERV_TYPE 0x00001000 /* traffic class set by SO_NETWORK_SERVICE_TYPE */
+#define SOF1_TRAFFIC_MGT_SO_BACKGROUND 0x00002000 /* background socket */
+#define SOF1_TRAFFIC_MGT_TCP_RECVBG 0x00004000 /* Only TCP sockets, receiver throttling */
+#define SOF1_QOSMARKING_POLICY_OVERRIDE 0x00008000 /* Opt-out of QoS marking NECP policy */
+#define SOF1_DATA_AUTHENTICATED 0x00010000 /* idempotent data is authenticated */
+#define SOF1_ACCEPT_LIST_HELD 0x00020000 /* Another thread is accessing one of the accept lists */
+#define SOF1_CONTENT_FILTER_SKIP 0x00040000 /* Content filter should be skipped, socket is blessed */
+#define SOF1_HAS_NECP_CLIENT_UUID 0x00080000 /* NECP client UUID option set */
+#define SOF1_IN_KERNEL_SOCKET 0x00100000 /* Socket created in kernel via KPI */
+#define SOF1_CONNECT_COUNTED 0x00200000 /* connect() call was counted */
+#define SOF1_DNS_COUNTED 0x00400000 /* socket counted to send DNS queries */
+#define SOF1_MPKL_SEND_INFO 0x00800000 /* SO_MPKL_SEND_INFO option is set */
+#define SOF1_INBOUND 0x01000000 /* Created via a passive listener */
+
+ u_int64_t so_extended_bk_start;
+
+ u_int8_t so_log_seqn; /* Multi-layer Packet Logging rolling sequence number */
+ uuid_t so_mpkl_send_uuid;
+ uint8_t so_mpkl_send_proto;
};
-#endif /* __APPLE_API_UNSTABLE */
+
+/* Control message accessor in mbufs */
+
+#define _MIN_NXT_CMSGHDR_PTR(cmsg) \
+ ((char *)(cmsg) + \
+ __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len) + \
+ __DARWIN_ALIGN32(sizeof(struct cmsghdr)))
+
+#define M_FIRST_CMSGHDR(m) \
+ ((char *)(m) != (char *)0L && \
+ (size_t)(m)->m_len >= sizeof (struct cmsghdr) && \
+ (socklen_t)(m)->m_len >= \
+ __DARWIN_ALIGN32(((struct cmsghdr *)(void *)(m)->m_data)->cmsg_len) ? \
+ (struct cmsghdr *)(void *)(m)->m_data : (struct cmsghdr *)0L)
+
+#define M_NXT_CMSGHDR(m, cmsg) \
+ ((char *)(cmsg) == (char *)0L ? M_FIRST_CMSGHDR(m) : \
+ _MIN_NXT_CMSGHDR_PTR(cmsg) > ((char *)(m)->m_data) + (m)->m_len || \
+ _MIN_NXT_CMSGHDR_PTR(cmsg) < (char *)(m)->m_data ? \
+ (struct cmsghdr *)0L /* NULL */ : \
+ (struct cmsghdr *)(void *)((unsigned char *)(cmsg) + \
+ __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len)))
/*
* Socket state bits.
*/
-#define SS_NOFDREF 0x001 /* no file table ref any more */
-#define SS_ISCONNECTED 0x002 /* socket connected to a peer */
-#define SS_ISCONNECTING 0x004 /* in process of connecting to peer */
-#define SS_ISDISCONNECTING 0x008 /* in process of disconnecting */
-#define SS_CANTSENDMORE 0x010 /* can't send more data to peer */
-#define SS_CANTRCVMORE 0x020 /* can't receive more data from peer */
-#define SS_RCVATMARK 0x040 /* at mark on input */
-
-#define SS_PRIV 0x080 /* privileged for broadcast, raw... */
-#define SS_NBIO 0x100 /* non-blocking ops */
-#define SS_ASYNC 0x200 /* async i/o notify */
-#define SS_ISCONFIRMING 0x400 /* deciding to accept connection req */
-#define SS_INCOMP 0x800 /* Unaccepted, incomplete connection */
-#define SS_COMP 0x1000 /* unaccepted, complete connection */
-#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */
+#define SS_NOFDREF 0x0001 /* no file table ref any more */
+#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */
+#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */
+#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */
+#define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */
+#define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */
+#define SS_RCVATMARK 0x0040 /* at mark on input */
+
+#define SS_PRIV 0x0080 /* privileged for broadcast, raw... */
+#define SS_NBIO 0x0100 /* non-blocking ops */
+#define SS_ASYNC 0x0200 /* async i/o notify */
+#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */
+#define SS_INCOMP 0x0800 /* Unaccepted, incomplete connection */
+#define SS_COMP 0x1000 /* unaccepted, complete connection */
+#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */
+#define SS_DRAINING 0x4000 /* close waiting for blocked system
+ * calls to drain */
+#define SS_DEFUNCT 0x8000 /* has been fully defunct'd */
+#endif /* KERNEL_PRIVATE */
+
+#if defined(__LP64__)
+#define _XSOCKET_PTR(x) u_int32_t
+#else
+#define _XSOCKET_PTR(x) x
+#endif
+
+#ifdef PRIVATE
+/* Flags returned in data field for EVFILT_SOCK events. */
+#define SOCKEV_CONNECTED 0x00000001 /* connected */
+#define SOCKEV_DISCONNECTED 0x00000002 /* disconnected */
+#endif /* PRIVATE */
+
+#pragma pack(4)
+
+struct xsockbuf {
+ u_int32_t sb_cc;
+ u_int32_t sb_hiwat;
+ u_int32_t sb_mbcnt;
+ u_int32_t sb_mbmax;
+ int32_t sb_lowat;
+ short sb_flags;
+ short sb_timeo;
+};
/*
* Externalized form of struct socket used by the sysctl(3) interface.
*/
-struct xsocket {
- size_t xso_len; /* length of this structure */
- struct socket *xso_so; /* makes a convenient handle sometimes */
- short so_type;
- short so_options;
- short so_linger;
- short so_state;
- caddr_t so_pcb; /* another convenient handle */
- int xso_protocol;
- int xso_family;
- short so_qlen;
- short so_incqlen;
- short so_qlimit;
- short so_timeo;
- u_short so_error;
- pid_t so_pgid;
- u_long so_oobmark;
- struct xsockbuf {
- u_long sb_cc;
- u_long sb_hiwat;
- u_long sb_mbcnt;
- u_long sb_mbmax;
- long sb_lowat;
- short sb_flags;
- short sb_timeo;
- } so_rcv, so_snd;
- uid_t so_uid; /* XXX */
+struct xsocket {
+ u_int32_t xso_len; /* length of this structure */
+ _XSOCKET_PTR(struct socket *) xso_so; /* makes a convenient handle */
+ short so_type;
+ short so_options;
+ short so_linger;
+ short so_state;
+ _XSOCKET_PTR(caddr_t) so_pcb; /* another convenient handle */
+ int xso_protocol;
+ int xso_family;
+ short so_qlen;
+ short so_incqlen;
+ short so_qlimit;
+ short so_timeo;
+ u_short so_error;
+ pid_t so_pgid;
+ u_int32_t so_oobmark;
+ struct xsockbuf so_rcv;
+ struct xsockbuf so_snd;
+ uid_t so_uid; /* XXX */
+};
+
+#if !CONFIG_EMBEDDED
+struct xsocket64 {
+ u_int32_t xso_len; /* length of this structure */
+ u_int64_t xso_so; /* makes a convenient handle */
+ short so_type;
+ short so_options;
+ short so_linger;
+ short so_state;
+ u_int64_t so_pcb; /* another convenient handle */
+ int xso_protocol;
+ int xso_family;
+ short so_qlen;
+ short so_incqlen;
+ short so_qlimit;
+ short so_timeo;
+ u_short so_error;
+ pid_t so_pgid;
+ u_int32_t so_oobmark;
+ struct xsockbuf so_rcv;
+ struct xsockbuf so_snd;
+ uid_t so_uid; /* XXX */
+};
+#endif /* !CONFIG_EMBEDDED */
+
+#ifdef PRIVATE
+#define XSO_SOCKET 0x001
+#define XSO_RCVBUF 0x002
+#define XSO_SNDBUF 0x004
+#define XSO_STATS 0x008
+#define XSO_INPCB 0x010
+#define XSO_TCPCB 0x020
+#define XSO_KCREG 0x040
+#define XSO_KCB 0x080
+#define XSO_EVT 0x100
+
+struct xsocket_n {
+ u_int32_t xso_len; /* length of this structure */
+ u_int32_t xso_kind; /* XSO_SOCKET */
+ u_int64_t xso_so; /* makes a convenient handle */
+ short so_type;
+ u_int32_t so_options;
+ short so_linger;
+ short so_state;
+ u_int64_t so_pcb; /* another convenient handle */
+ int xso_protocol;
+ int xso_family;
+ short so_qlen;
+ short so_incqlen;
+ short so_qlimit;
+ short so_timeo;
+ u_short so_error;
+ pid_t so_pgid;
+ u_int32_t so_oobmark;
+ uid_t so_uid; /* XXX */
+ pid_t so_last_pid;
+ pid_t so_e_pid;
+};
+
+struct xsockbuf_n {
+ u_int32_t xsb_len; /* length of this structure */
+ u_int32_t xsb_kind; /* XSO_RCVBUF or XSO_SNDBUF */
+ u_int32_t sb_cc;
+ u_int32_t sb_hiwat;
+ u_int32_t sb_mbcnt;
+ u_int32_t sb_mbmax;
+ int32_t sb_lowat;
+ short sb_flags;
+ short sb_timeo;
+};
+
+struct xsockstat_n {
+ u_int32_t xst_len; /* length of this structure */
+ u_int32_t xst_kind; /* XSO_STATS */
+ struct data_stats xst_tc_stats[SO_TC_STATS_MAX];
};
/*
- * Macros for sockets and socket buffering.
+ * Global socket statistics
*/
-#ifdef __APPLE__
-#ifdef __APPLE_API_UNSTABLE
-#define sbtoso(sb) (sb->sb_so)
+struct soextbkidlestat {
+ u_int32_t so_xbkidle_maxperproc;
+ u_int32_t so_xbkidle_time;
+ u_int32_t so_xbkidle_rcvhiwat;
+ int32_t so_xbkidle_notsupp;
+ int32_t so_xbkidle_toomany;
+ int32_t so_xbkidle_wantok;
+ int32_t so_xbkidle_active;
+ int32_t so_xbkidle_nocell;
+ int32_t so_xbkidle_notime;
+ int32_t so_xbkidle_forced;
+ int32_t so_xbkidle_resumed;
+ int32_t so_xbkidle_expired;
+ int32_t so_xbkidle_resched;
+ int32_t so_xbkidle_nodlgtd;
+ int32_t so_xbkidle_drained;
+};
+#endif /* PRIVATE */
+
+#pragma pack()
+
+#ifdef KERNEL_PRIVATE
+#include <sys/kpi_mbuf.h>
/*
- * Functions for sockets and socket buffering.
- * These are macros on FreeBSD. On Darwin the
- * implementation is in bsd/kern/uipc_socket2.c
+ * Argument structure for sosetopt et seq. This is in the KERNEL
+ * section because it will never be visible to user code.
*/
-int sb_notify __P((struct sockbuf *sb));
-long sbspace __P((struct sockbuf *sb));
-int sosendallatonce __P((struct socket *so));
-int soreadable __P((struct socket *so));
-int sowriteable __P((struct socket *so));
-void sballoc __P((struct sockbuf *sb, struct mbuf *m));
-void sbfree __P((struct sockbuf *sb, struct mbuf *m));
-int sblock __P((struct sockbuf *sb, int wf));
-void sbunlock __P((struct sockbuf *sb));
-void sorwakeup __P((struct socket * so));
-void sowwakeup __P((struct socket * so));
+enum sopt_dir { SOPT_GET, SOPT_SET };
+struct sockopt {
+ enum sopt_dir sopt_dir; /* is this a get or a set? */
+ int sopt_level; /* second arg of [gs]etsockopt */
+ int sopt_name; /* third arg of [gs]etsockopt */
+ user_addr_t sopt_val; /* fourth arg of [gs]etsockopt */
+ size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */
+ struct proc *sopt_p; /* calling process or null if kernel */
+};
+
+#ifdef MALLOC_DECLARE
+MALLOC_DECLARE(M_PCB);
+MALLOC_DECLARE(M_SONAME);
+#endif /* MALLOC_DECLARE */
+
+#ifdef BSD_KERNEL_PRIVATE
+struct cmsghdr;
+extern boolean_t is_cmsg_valid(struct mbuf *control, struct cmsghdr *cmsg);
/*
* Socket extension mechanism: control block hooks:
* the NFDescriptor to permit selective replacement during
* operation, e.g., to disable some functions.
*/
-struct kextcb
-{ struct kextcb *e_next; /* Next kext control block */
- void *e_fcb; /* Real filter control block */
- struct NFDescriptor *e_nfd; /* NKE Descriptor */
+struct kextcb {
+ struct kextcb *e_next; /* Next kext control block */
+ void *e_fcb; /* Real filter control block */
+ struct NFDescriptor *e_nfd; /* NKE Descriptor */
/* Plug-in support - intercept functions */
- struct sockif *e_soif; /* Socket functions */
- struct sockutil *e_sout; /* Sockbuf utility functions */
+ struct sockif *e_soif; /* Socket functions */
+ struct sockutil *e_sout; /* Sockbuf utility functions */
};
-#define EXT_NULL 0x0 /* STATE: Not in use */
-#define sotokextcb(so) (so ? so->so_ext : 0)
-#endif /* __APPLE___ */
+#define EXT_NULL 0x0 /* STATE: Not in use */
-#ifdef KERNEL
+/* Hints for socket event processing */
+#define SO_FILT_HINT_LOCKED 0x00000001 /* socket is already locked */
+#define SO_FILT_HINT_CONNRESET 0x00000002 /* Reset is received */
+#define SO_FILT_HINT_CANTRCVMORE 0x00000004 /* No more data to read */
+#define SO_FILT_HINT_CANTSENDMORE 0x00000008 /* Can't write more data */
+#define SO_FILT_HINT_TIMEOUT 0x00000010 /* timeout */
+#define SO_FILT_HINT_NOSRCADDR 0x00000020 /* No src address available */
+#define SO_FILT_HINT_IFDENIED 0x00000040 /* interface denied access */
+#define SO_FILT_HINT_SUSPEND 0x00000080 /* output queue suspended */
+#define SO_FILT_HINT_RESUME 0x00000100 /* output queue resumed */
+#define SO_FILT_HINT_KEEPALIVE 0x00000200 /* TCP Keepalive received */
+#define SO_FILT_HINT_ADAPTIVE_WTIMO 0x00000400 /* TCP adaptive write timeout */
+#define SO_FILT_HINT_ADAPTIVE_RTIMO 0x00000800 /* TCP adaptive read timeout */
+#define SO_FILT_HINT_CONNECTED 0x00001000 /* socket is connected */
+#define SO_FILT_HINT_DISCONNECTED 0x00002000 /* socket is disconnected */
+#define SO_FILT_HINT_CONNINFO_UPDATED 0x00004000 /* updated conninfo avail. */
+#define SO_FILT_HINT_MPFAILOVER 0x00008000 /* multipath failover */
+#define SO_FILT_HINT_MPSTATUS 0x00010000 /* multipath status */
+#define SO_FILT_HINT_MUSTRST 0x00020000 /* must send RST and close */
+#define SO_FILT_HINT_MPCANTRCVMORE 0x00040000 /* MPTCP DFIN Received */
+#define SO_FILT_HINT_NOTIFY_ACK 0x00080000 /* Notify Acknowledgement */
+#define SO_FILT_HINT_MP_SUB_ERROR 0x00100000 /* Error happend on subflow */
-/*
- * Argument structure for sosetopt et seq. This is in the KERNEL
- * section because it will never be visible to user code.
- */
-enum sopt_dir { SOPT_GET, SOPT_SET };
-struct sockopt {
- enum sopt_dir sopt_dir; /* is this a get or a set? */
- int sopt_level; /* second arg of [gs]etsockopt */
- int sopt_name; /* third arg of [gs]etsockopt */
- void *sopt_val; /* fourth arg of [gs]etsockopt */
- size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */
- struct proc *sopt_p; /* calling process or null if kernel */
-};
+#define SO_FILT_HINT_BITS \
+ "\020\1LOCKED\2CONNRESET\3CANTRCVMORE\4CANTSENDMORE\5TIMEOUT" \
+ "\6NOSRCADDR\7IFDENIED\10SUSPEND\11RESUME\12KEEPALIVE\13AWTIMO" \
+ "\14ARTIMO\15CONNECTED\16DISCONNECTED\17CONNINFO_UPDATED" \
+ "\20MPFAILOVER\21MPSTATUS\22MUSTRST\23MPCANTRCVMORE\24NOTIFYACK"\
+ "\25MPSUBERROR"
+
+/* Mask for hints that have corresponding kqueue events */
+#define SO_FILT_HINT_EV \
+ (SO_FILT_HINT_CONNRESET | SO_FILT_HINT_CANTRCVMORE | \
+ SO_FILT_HINT_CANTSENDMORE | SO_FILT_HINT_TIMEOUT | \
+ SO_FILT_HINT_NOSRCADDR | SO_FILT_HINT_IFDENIED | \
+ SO_FILT_HINT_SUSPEND | SO_FILT_HINT_RESUME | \
+ SO_FILT_HINT_KEEPALIVE | SO_FILT_HINT_ADAPTIVE_WTIMO | \
+ SO_FILT_HINT_ADAPTIVE_RTIMO | SO_FILT_HINT_CONNECTED | \
+ SO_FILT_HINT_DISCONNECTED | SO_FILT_HINT_CONNINFO_UPDATED | \
+ SO_FILT_HINT_NOTIFY_ACK)
#if SENDFILE
struct sf_buf {
- SLIST_ENTRY(sf_buf) free_list; /* list of free buffer slots */
- int refcnt; /* reference count */
- struct vm_page *m; /* currently mapped page */
- vm_offset_t kva; /* va of mapping */
+ SLIST_ENTRY(sf_buf) free_list; /* list of free buffer slots */
+ int refcnt; /* reference count */
+ struct vm_page *m; /* currently mapped page */
+ vm_offset_t kva; /* va of mapping */
};
-#endif
+#endif /* SENDFILE */
-#ifdef MALLOC_DECLARE
-MALLOC_DECLARE(M_PCB);
-MALLOC_DECLARE(M_SONAME);
-#endif
+#define SBLASTRECORDCHK(sb, s) \
+ if (socket_debug) sblastrecordchk(sb, s);
+
+#define SBLASTMBUFCHK(sb, s) \
+ if (socket_debug) sblastmbufchk(sb, s);
+
+#define SB_EMPTY_FIXUP(sb) { \
+ if ((sb)->sb_mb == NULL) { \
+ (sb)->sb_mbtail = NULL; \
+ (sb)->sb_lastrecord = NULL; \
+ } \
+}
+
+#define SB_MB_CHECK(sb) do { \
+ if (((sb)->sb_mb != NULL && \
+ (sb)->sb_cc == 0) || \
+ ((sb)->sb_mb == NULL && (sb)->sb_cc > 0)) \
+ panic("corrupt so_rcv: sb_mb %p sb_cc %d\n", \
+ (sb)->sb_mb, (sb)->sb_cc); \
+} while (0)
+
+#define SODEFUNCTLOG(fmt, ...) do { \
+ if (sodefunctlog) \
+ printf(fmt, __VA_ARGS__); \
+} while (0)
+
+#define SOTHROTTLELOG(fmt, ...) do { \
+ if (sothrottlelog) \
+ printf(fmt, __VA_ARGS__); \
+} while (0)
+
+/*
+ * For debugging traffic class behaviors
+ */
+#define SOTCDB_RESERVED 0x01
+#define SOTCDB_NO_MTC 0x02 /* Do not set the mbuf traffic class */
+#define SOTCDB_NO_SENDTCPBG 0x04 /* Do not use background TCP CC algorithm for sender */
+#define SOTCDB_NO_LCLTST 0x08 /* Do not test for local destination for setting DSCP */
+#define SOTCDB_NO_DSCPTST 0x10 /* Overwritte any existing DSCP code */
+#define SOTCDB_NO_RECVTCPBG 0x20 /* Do not use throttling on receiver-side of TCP */
+#define SOTCDB_NO_PRIVILEGED 0x40 /* Do not set privileged traffic flag */
+
+#define SOCK_DOM(so) ((so)->so_proto->pr_domain->dom_family)
+#define SOCK_TYPE(so) ((so)->so_proto->pr_type)
+#define SOCK_PROTO(so) ((so)->so_proto->pr_protocol)
-extern int maxsockets;
-extern u_long sb_max;
-extern int socket_zone;
+#define SOCK_CHECK_DOM(so, dom) (SOCK_DOM(so) == (dom))
+#define SOCK_CHECK_TYPE(so, type) (SOCK_TYPE(so) == (type))
+#define SOCK_CHECK_PROTO(so, proto) (SOCK_PROTO(so) == (proto))
+
+/*
+ * Socket process information
+ */
+struct so_procinfo {
+ pid_t spi_pid;
+ pid_t spi_epid;
+ uuid_t spi_uuid;
+ uuid_t spi_euuid;
+ int spi_delegated;
+ char spi_proc_name[MAXCOMLEN + 1];
+ char spi_e_proc_name[MAXCOMLEN + 1];
+};
+
+extern u_int32_t sb_max;
extern so_gen_t so_gencnt;
+extern int socket_debug;
+extern int sosendjcl;
+extern int sosendjcl_ignore_capab;
+extern int sodefunctlog;
+extern int sothrottlelog;
+extern int sorestrictrecv;
+extern int sorestrictsend;
+extern int somaxconn;
+extern uint32_t tcp_do_autosendbuf;
+extern uint32_t tcp_autosndbuf_max;
+extern uint32_t tcp_autosndbuf_inc;
+extern u_int32_t sotcdb;
+extern u_int32_t net_io_policy_log;
+extern u_int32_t net_io_policy_throttle_best_effort;
+#if CONFIG_PROC_UUID_POLICY
+extern u_int32_t net_io_policy_uuid;
+#endif /* CONFIG_PROC_UUID_POLICY */
+
+extern struct soextbkidlestat soextbkidlestat;
+
+#endif /* BSD_KERNEL_PRIVATE */
-struct file;
-struct filedesc;
struct mbuf;
struct sockaddr;
-struct stat;
struct ucred;
struct uio;
-struct knote;
+
+#define SOCK_MSG_SA 0x01
+#define SOCK_MSG_CONTROL 0x02
+#define SOCK_MSG_DATA 0x04
+
+struct recv_msg_elem {
+ struct uio *uio;
+ struct sockaddr *psa;
+ struct mbuf *controlp;
+ int which;
+ int flags;
+};
/*
- * File operations on sockets.
+ * From uipc_socket and friends
*/
-int soo_read __P((struct file *fp, struct uio *uio, struct ucred *cred,
- int flags, struct proc *p));
-int soo_write __P((struct file *fp, struct uio *uio, struct ucred *cred,
- int flags, struct proc *p));
-int soo_close __P((struct file *fp, struct proc *p));
-int soo_ioctl __P((struct file *fp, u_long cmd, caddr_t data,
- struct proc *p));
-int soo_stat __P((struct socket *so, struct stat *ub));
-int soo_select __P((struct file *fp, int which, void * wql, struct proc *p));
-int soo_kqfilter __P((struct file *fp, struct knote *kn, struct proc *p));
+__BEGIN_DECLS
+/* Exported */
+extern int sbappendaddr(struct sockbuf *sb, struct sockaddr *asa,
+ struct mbuf *m0, struct mbuf *control, int *error_out);
+extern int sbappendchain(struct sockbuf *sb, struct mbuf *m, int space);
+extern int sbappendrecord(struct sockbuf *sb, struct mbuf *m0);
+extern void sbflush(struct sockbuf *sb);
+extern int sbspace(struct sockbuf *sb);
+extern int soabort(struct socket *so);
+extern void socantrcvmore(struct socket *so);
+extern void socantsendmore(struct socket *so);
+extern int sodisconnect(struct socket *so);
+extern void sofree(struct socket *so);
+extern void sofreelastref(struct socket *, int);
+extern void soisconnected(struct socket *so);
+extern boolean_t socanwrite(struct socket *so);
+extern void soisconnecting(struct socket *so);
+extern void soisdisconnected(struct socket *so);
+extern void soisdisconnecting(struct socket *so);
+extern struct socket *sonewconn(struct socket *head, int connstatus,
+ const struct sockaddr *from);
+extern int sopoll(struct socket *so, int events, struct ucred *cred, void *wql);
+extern int sooptcopyin(struct sockopt *sopt, void *data, size_t len,
+ size_t minlen)
+__attribute__ ((warn_unused_result));
+extern int sooptcopyout(struct sockopt *sopt, void *data, size_t len)
+__attribute__ ((warn_unused_result));
+extern int soopt_cred_check(struct socket *so, int priv, boolean_t allow_root,
+ boolean_t ignore_delegate);
+extern int soreceive(struct socket *so, struct sockaddr **paddr,
+ struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp);
+extern int soreserve(struct socket *so, u_int32_t sndcc, u_int32_t rcvcc);
+extern void soreserve_preconnect(struct socket *so, unsigned int pre_cc);
+extern void sorwakeup(struct socket *so);
+extern int sosend(struct socket *so, struct sockaddr *addr, struct uio *uio,
+ struct mbuf *top, struct mbuf *control, int flags);
+extern int sosend_reinject(struct socket *so, struct sockaddr *addr, struct mbuf *top,
+ struct mbuf *control, uint32_t sendflags);
+extern int sosend_list(struct socket *so, struct uio **uio, u_int uiocnt,
+ int flags);
+extern int soreceive_list(struct socket *so, struct recv_msg_elem *msgarray,
+ u_int msgcnt, int *flags);
+extern void sonullevent(struct socket *so, void *arg, uint32_t hint);
+extern struct mbuf *sbconcat_mbufs(struct sockbuf *sb, struct sockaddr *asa, struct mbuf *m0,
+ struct mbuf *control);
+
+
+__END_DECLS
+
+#ifdef BSD_KERNEL_PRIVATE
+struct file;
+struct filedesc;
+struct so_tcdbg;
+__BEGIN_DECLS
+/* Not exported */
+extern void socketinit(void);
+extern struct sockaddr *dup_sockaddr(struct sockaddr *sa, int canwait);
+extern int getsock(struct filedesc *fdp, int fd, struct file **fpp);
+extern int sockargs(struct mbuf **mp, user_addr_t data, int buflen, int type);
+extern void get_sockev_state(struct socket *, u_int32_t *);
+extern void so_update_last_owner_locked(struct socket *, struct proc *);
+extern void so_update_policy(struct socket *);
+extern void so_acquire_accept_list(struct socket *, struct socket *);
+extern void so_release_accept_list(struct socket *);
+
+extern int sbappend(struct sockbuf *sb, struct mbuf *m);
+extern int sbappendstream(struct sockbuf *sb, struct mbuf *m);
+extern int sbappendcontrol(struct sockbuf *sb, struct mbuf *m0,
+ struct mbuf *control, int *error_out);
+extern int sbappendmsgstream_rcv(struct sockbuf *sb, struct mbuf *m,
+ uint32_t seqnum, int flags);
+extern int sbappendstream_rcvdemux(struct socket *so, struct mbuf *m,
+ uint32_t seqnum, int flags);
+#if MPTCP
+extern int sbappendmptcpstream_rcv(struct sockbuf *sb, struct mbuf *m);
+#endif /* MPTCP */
+extern int sbappendmsg_snd(struct sockbuf *sb, struct mbuf *m);
+extern void sbpull_unordered_data(struct socket *, int32_t, int32_t);
+extern void sbcheck(struct sockbuf *sb);
+extern void sblastmbufchk(struct sockbuf *, const char *);
+extern void sblastrecordchk(struct sockbuf *, const char *);
+extern struct mbuf *sbcreatecontrol(caddr_t p, int size, int type, int level);
+extern struct mbuf **sbcreatecontrol_mbuf(caddr_t p, int size, int type,
+ int level, struct mbuf **m);
+extern void sbdrop(struct sockbuf *sb, int len);
+extern void sbdroprecord(struct sockbuf *sb);
+extern void sbrelease(struct sockbuf *sb);
+extern int sbreserve(struct sockbuf *sb, u_int32_t cc);
+extern void sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb);
+extern int sbwait(struct sockbuf *sb);
+extern void sbwakeup(struct sockbuf *sb);
+extern void sb_empty_assert(struct sockbuf *, const char *);
+extern int sb_notify(struct sockbuf *sb);
+extern void sballoc(struct sockbuf *sb, struct mbuf *m);
+extern void sbfree(struct sockbuf *sb, struct mbuf *m);
+extern void sbfree_chunk(struct sockbuf *sb, struct mbuf *m);
/*
- * From uipc_socket and friends
+ * Flags to sblock().
*/
-struct sockaddr *dup_sockaddr __P((struct sockaddr *sa, int canwait));
-int getsock __P((struct filedesc *fdp, int fd, struct file **fpp));
-int sockargs __P((struct mbuf **mp, caddr_t buf, int buflen, int type));
-int getsockaddr __P((struct sockaddr **namp, caddr_t uaddr, size_t len));
-void sbappend __P((struct sockbuf *sb, struct mbuf *m));
-int sbappendaddr __P((struct sockbuf *sb, struct sockaddr *asa,
- struct mbuf *m0, struct mbuf *control));
-int sbappendcontrol __P((struct sockbuf *sb, struct mbuf *m0,
- struct mbuf *control));
-void sbappendrecord __P((struct sockbuf *sb, struct mbuf *m0));
-void sbcheck __P((struct sockbuf *sb));
-void sbcompress __P((struct sockbuf *sb, struct mbuf *m, struct mbuf *n));
-struct mbuf *
- sbcreatecontrol __P((caddr_t p, int size, int type, int level));
-void sbdrop __P((struct sockbuf *sb, int len));
-void sbdroprecord __P((struct sockbuf *sb));
-void sbflush __P((struct sockbuf *sb));
-void sbinsertoob __P((struct sockbuf *sb, struct mbuf *m0));
-void sbrelease __P((struct sockbuf *sb));
-int sbreserve __P((struct sockbuf *sb, u_long cc));
-void sbtoxsockbuf __P((struct sockbuf *sb, struct xsockbuf *xsb));
-int sbwait __P((struct sockbuf *sb));
-int sb_lock __P((struct sockbuf *sb));
-int soabort __P((struct socket *so));
-int soaccept __P((struct socket *so, struct sockaddr **nam));
-struct socket *soalloc __P((int waitok, int dom, int type));
-int sobind __P((struct socket *so, struct sockaddr *nam));
-void socantrcvmore __P((struct socket *so));
-void socantsendmore __P((struct socket *so));
-int soclose __P((struct socket *so));
-int soconnect __P((struct socket *so, struct sockaddr *nam));
-int soconnect2 __P((struct socket *so1, struct socket *so2));
-int socreate __P((int dom, struct socket **aso, int type, int proto));
-void sodealloc __P((struct socket *so));
-int sodisconnect __P((struct socket *so));
-void sofree __P((struct socket *so));
-int sogetopt __P((struct socket *so, struct sockopt *sopt));
-void sohasoutofband __P((struct socket *so));
-void soisconnected __P((struct socket *so));
-void soisconnecting __P((struct socket *so));
-void soisdisconnected __P((struct socket *so));
-void soisdisconnecting __P((struct socket *so));
-int solisten __P((struct socket *so, int backlog));
-struct socket *
- sodropablereq __P((struct socket *head));
-struct socket *
- sonewconn __P((struct socket *head, int connstatus));
-int sooptcopyin __P((struct sockopt *sopt, void *buf, size_t len,
- size_t minlen));
-int sooptcopyout __P((struct sockopt *sopt, void *buf, size_t len));
+#define SBL_WAIT 0x00000001 /* Wait if not immediately available. */
+#define SBL_NOINTR 0x00000002 /* Force non-interruptible sleep. */
+#define SBL_IGNDEFUNCT 0x00000004 /* Ignore defunct'd state */
+#define SBL_VALID (SBL_WAIT | SBL_NOINTR | SBL_IGNDEFUNCT)
+extern int sblock(struct sockbuf *sb, uint32_t flags);
+extern void sbunlock(struct sockbuf *sb, boolean_t keeplocked);
+
+extern int soaccept(struct socket *so, struct sockaddr **nam);
+extern int soacceptlock(struct socket *so, struct sockaddr **nam, int dolock);
+extern int soacceptfilter(struct socket *so, struct socket *head);
+extern struct socket *soalloc(int waitok, int dom, int type);
+extern int sobindlock(struct socket *so, struct sockaddr *nam, int dolock);
+extern int soclose(struct socket *so);
+extern int soclose_locked(struct socket *so);
+extern void soclose_wait_locked(struct socket *so);
+extern int soconnect(struct socket *so, struct sockaddr *nam);
+extern int soconnectlock(struct socket *so, struct sockaddr *nam, int dolock);
+extern int soconnect2(struct socket *so1, struct socket *so2);
+extern int soconnectxlocked(struct socket *so, struct sockaddr *src,
+ struct sockaddr *dst, struct proc *, uint32_t, sae_associd_t,
+ sae_connid_t *, uint32_t, void *, u_int32_t, uio_t, user_ssize_t *);
+extern int sodisconnectx(struct socket *so, sae_associd_t, sae_connid_t);
+extern int sodisconnectxlocked(struct socket *so, sae_associd_t, sae_connid_t);
+extern void soevupcall(struct socket *, u_int32_t);
+/* flags for socreate_internal */
+#define SOCF_MPTCP 0x1 /* MPTCP-subflow */
+extern int socreate_internal(int dom, struct socket **aso, int type, int proto,
+ struct proc *, uint32_t, struct proc *);
+extern int socreate(int dom, struct socket **aso, int type, int proto);
+extern int socreate_delegate(int dom, struct socket **aso, int type, int proto,
+ pid_t epid);
+extern void sodealloc(struct socket *so);
+extern int sodisconnectlocked(struct socket *so);
+extern void soreference(struct socket *so);
+extern void sodereference(struct socket *so);
+extern void somultipages(struct socket *, boolean_t);
+extern void soif2kcl(struct socket *, boolean_t);
+extern int sosetdefunct(struct proc *, struct socket *, int level, boolean_t);
+extern int sodefunct(struct proc *, struct socket *, int level);
+extern int soresume(struct proc *, struct socket *, int);
+extern void resume_proc_sockets(proc_t);
+extern int so_check_extended_bk_idle_time(struct socket *);
+extern void so_drain_extended_bk_idle(struct socket *);
+extern void sohasoutofband(struct socket *so);
+extern void sodisconnectwakeup(struct socket *so);
+extern int soisthrottled(struct socket *so);
+extern int soisprivilegedtraffic(struct socket *so);
+extern int soissrcbackground(struct socket *so);
+extern int soissrcrealtime(struct socket *so);
+extern int soissrcbesteffort(struct socket *so);
+extern void soclearfastopen(struct socket *so);
+extern int solisten(struct socket *so, int backlog);
+extern struct socket *sodropablereq(struct socket *head);
+extern lck_mtx_t *socket_getlock(struct socket *so, int flags);
+extern void socket_lock(struct socket *so, int refcount);
+extern void socket_lock_assert_owned(struct socket *so);
+extern int socket_try_lock(struct socket *so);
+extern void socket_unlock(struct socket *so, int refcount);
+extern int sogetaddr_locked(struct socket *, struct sockaddr **, int);
+extern const char *solockhistory_nr(struct socket *);
+extern void soevent(struct socket *so, long hint);
+extern void sorflush(struct socket *so);
+extern void sowflush(struct socket *so);
+extern void sowakeup(struct socket *so, struct sockbuf *sb, struct socket *so2);
+extern int soioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p);
+extern int sogetoptlock(struct socket *so, struct sockopt *sopt, int);
+extern int sosetoptlock(struct socket *so, struct sockopt *sopt, int);
+extern int soshutdown(struct socket *so, int how);
+extern int soshutdownlock(struct socket *so, int how);
+extern int soshutdownlock_final(struct socket *so, int how);
+extern void sotoxsocket(struct socket *so, struct xsocket *xso);
+#if !CONFIG_EMBEDDED
+extern void sotoxsocket64(struct socket *so, struct xsocket64 *xso);
+#endif /* !CONFIG_EMBEDDED */
+extern int sosendallatonce(struct socket *so);
+extern int soreadable(struct socket *so);
+extern int sowriteable(struct socket *so);
+extern void sowwakeup(struct socket *so);
+extern int sosendcheck(struct socket *, struct sockaddr *, user_ssize_t,
+ int32_t, int32_t, int, int *, struct mbuf *);
+
+extern int soo_ioctl(struct fileproc *, u_long, caddr_t, vfs_context_t);
+extern int soo_stat(struct socket *, void *, int);
+extern int soo_select(struct fileproc *, int, void *, vfs_context_t);
+extern int soo_kqfilter(struct fileproc *, struct knote *, struct kevent_qos_s *);
+
+/* Service class flags used for setting service class on a packet */
+#define PKT_SCF_IPV6 0x00000001 /* IPv6 packet */
+#define PKT_SCF_TCP_ACK 0x00000002 /* Pure TCP ACK */
+#define PKT_SCF_TCP_SYN 0x00000004 /* TCP SYN */
/*
- * XXX; prepare mbuf for (__FreeBSD__ < 3) routines.
- * Used primarily in IPSec and IPv6 code.
+ * Flags for connectx(2) user-protocol request routine.
*/
-int soopt_getm __P((struct sockopt *sopt, struct mbuf **mp));
-int soopt_mcopyin __P((struct sockopt *sopt, struct mbuf *m));
-int soopt_mcopyout __P((struct sockopt *sopt, struct mbuf *m));
-
-int sopoll __P((struct socket *so, int events, struct ucred *cred, void *wql));
-int soreceive __P((struct socket *so, struct sockaddr **paddr,
- struct uio *uio, struct mbuf **mp0,
- struct mbuf **controlp, int *flagsp));
-int soreserve __P((struct socket *so, u_long sndcc, u_long rcvcc));
-void sorflush __P((struct socket *so));
-int sosend __P((struct socket *so, struct sockaddr *addr, struct uio *uio,
- struct mbuf *top, struct mbuf *control, int flags));
-
-int sosetopt __P((struct socket *so, struct sockopt *sopt));
-int soshutdown __P((struct socket *so, int how));
-void sotoxsocket __P((struct socket *so, struct xsocket *xso));
-void sowakeup __P((struct socket *so, struct sockbuf *sb));
-
-#ifndef __APPLE__
-/* accept filter functions */
-int accept_filt_add __P((struct accept_filter *filt));
-int accept_filt_del __P((char *name));
-struct accept_filter * accept_filt_get __P((char *name));
-#ifdef ACCEPT_FILTER_MOD
-int accept_filt_generic_mod_event __P((module_t mod, int event, void *data));
-SYSCTL_DECL(_net_inet_accf);
-#endif /* ACCEPT_FILTER_MOD */
-#endif /* !defined(__APPLE__) */
-
-#endif /* KERNEL */
-#endif /* __APPLE_API_UNSTABLE */
+#define CONNREQF_MPTCP 0x1 /* called internally by MPTCP */
+#define CONNREQF_UIO 0x2 /* there's data */
+#define CONNREQF_IDEM 0x4 /* data is idempotent */
+
+extern void set_packet_service_class(struct mbuf *, struct socket *,
+ mbuf_svc_class_t, u_int32_t);
+extern void so_tc_update_stats(struct mbuf *, struct socket *,
+ mbuf_svc_class_t);
+extern int so_tc_from_control(struct mbuf *, int *);
+extern mbuf_svc_class_t so_tc2msc(int);
+extern int so_svc2tc(mbuf_svc_class_t);
+
+extern u_int8_t tcp_cansbgrow(struct sockbuf *sb);
+extern int tcp_get_msg_priority(struct mbuf *, uint32_t *);
+extern void set_tcp_stream_priority(struct socket *so);
+
+extern int so_set_net_service_type(struct socket *, int);
+extern int so_set_traffic_class(struct socket *, int);
+extern void so_set_default_traffic_class(struct socket *);
+extern int so_set_opportunistic(struct socket *, int);
+extern int so_get_opportunistic(struct socket *);
+extern int so_set_recv_anyif(struct socket *, int);
+extern int so_get_recv_anyif(struct socket *);
+extern int so_set_effective_pid(struct socket *so, int epid, struct proc *p, boolean_t check_cred);
+extern int so_set_effective_uuid(struct socket *so, uuid_t euuid, struct proc *p, boolean_t check_cred);
+extern int so_set_restrictions(struct socket *, uint32_t);
+extern uint32_t so_get_restrictions(struct socket *);
+extern void socket_tclass_init(void);
+#if (DEVELOPMENT || DEBUG)
+extern int so_set_tcdbg(struct socket *, struct so_tcdbg *);
+extern int sogetopt_tcdbg(struct socket *, struct sockopt *);
+#endif /* (DEVELOPMENT || DEBUG) */
+extern void so_set_lro(struct socket *, int);
+
+extern int so_isdstlocal(struct socket *);
+extern void so_recv_data_stat(struct socket *, struct mbuf *, size_t);
+extern void so_inc_recv_data_stat(struct socket *, size_t, size_t, uint32_t);
+extern int so_wait_for_if_feedback(struct socket *);
+extern int msgq_sbspace(struct socket *so, struct mbuf *control);
+extern int soopt_getm(struct sockopt *sopt, struct mbuf **mp);
+extern int soopt_mcopyin(struct sockopt *sopt, struct mbuf *m);
+extern int soopt_mcopyout(struct sockopt *sopt, struct mbuf *m);
+extern boolean_t so_cache_timer(void);
+
+extern void mptcp_fallback_sbdrop(struct socket *so, struct mbuf *m, int len);
+extern void mptcp_preproc_sbdrop(struct socket *, struct mbuf *, unsigned int);
+extern void mptcp_postproc_sbdrop(struct mbuf *, u_int64_t, u_int32_t,
+ u_int32_t);
+
+extern void netpolicy_post_msg(uint32_t, struct netpolicy_event_data *,
+ uint32_t);
+/*
+ * Socket operation routines.
+ * These routines are called by the routines in
+ * sys_socket.c or from a system process, and
+ * implement the semantics of socket operations by
+ * switching out to the protocol specific routines.
+ */
+extern void postevent(struct socket *, struct sockbuf *, int);
+extern void evsofree(struct socket *);
+
+extern int tcp_notsent_lowat_check(struct socket *so);
+
+extern user_ssize_t uio_array_resid(struct uio **, u_int);
+extern user_ssize_t recv_msg_array_resid(struct recv_msg_elem *, u_int);
+
+void sotoxsocket_n(struct socket *, struct xsocket_n *);
+void sbtoxsockbuf_n(struct sockbuf *, struct xsockbuf_n *);
+void sbtoxsockstat_n(struct socket *, struct xsockstat_n *);
+
+__END_DECLS
+#endif /* BSD_KERNEL_PRIVATE */
+#endif /* KERNEL_PRIVATE */
#endif /* !_SYS_SOCKETVAR_H_ */
projects / apple / xnu.git / blobdiff