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--- xnu/xnu-12377.121.6/bsd/sys/socketvar.h
+++ xnu/xnu-792/bsd/sys/socketvar.h
@@ -1,33 +1,27 @@
/*
- * Copyright (c) 2000-2020, 2024 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, 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
+ * @APPLE_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 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@
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * @APPLE_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.
*
@@ -62,540 +56,239 @@
* @(#)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/cdefs.h>
-#include <sys/constrained_ctypes.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 <sys/queue.h> /* for TAILQ macros */
+#include <sys/select.h> /* for struct selinfo */
#include <net/kext_net.h>
#include <sys/ev.h>
-#include <uuid/uuid.h>
-#ifdef BSD_KERNEL_PRIVATE
-#include <sys/eventhandler.h>
-#endif /* BSD_KERNEL_PRIVATE */
-#endif /* KERNEL_PRIVATE */
-#if !KERNEL
-#include <TargetConditionals.h>
-#include <uuid/uuid.h>
-#endif
-
-typedef u_quad_t so_gen_t;
-
-#ifdef KERNEL_PRIVATE
+#include <sys/cdefs.h>
+
+/*
+ * Hacks to get around compiler complaints
+ */
struct mbuf;
struct socket_filter_entry;
struct protosw;
struct sockif;
struct sockutil;
+#ifdef KERNEL_PRIVATE
/* strings for sleep message: */
-extern char netio[], netcon[], netcls[];
-#endif /* KERNEL_PRIVATE */
-
-#ifdef PRIVATE
-/*
- * Note: We stopped accumulating stats per traffic class as it's not really useful
- */
-#define SO_TC_STATS_MAX 4
-
-#define SO_STATS_DATA 0
-#define SO_STATS_SBNOSPACE 1
-
-struct data_stats {
- u_int64_t rxpackets;
- u_int64_t rxbytes;
- u_int64_t txpackets;
- u_int64_t txbytes;
-};
-#endif /* PRIVATE */
-
-#ifdef KERNEL_PRIVATE
+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
+
/*
* Kernel structure per socket.
* Contains send and receive buffer queues,
* handle on protocol and pointer to protocol
* private data and error information.
*/
+#endif /* KERNEL_PRIVATE */
+
+typedef u_quad_t so_gen_t;
+
+#ifdef KERNEL_PRIVATE
+#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 */
- uint16_t so_protocol;
- int so_family;
- 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 {
- uint32_t sb_cc; /* actual chars in buffer */
- uint32_t sb_hiwat; /* max actual char count */
- uint32_t sb_mbcnt; /* chars of mbufs used */
- uint32_t sb_mbmax; /* max chars of mbufs to use */
- uint32_t sb_ctl; /* non-data chars in buffer */
- uint32_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 */
- uint32_t sb_flags; /* flags, see below */
- uint32_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 */
- uint32_t sb_wantlock; /* # of SB_LOCK waiters */
- uint32_t sb_waiters; /* # of data/space waiters */
- thread_t sb_cfil_thread; /* content filter thread */
- uint32_t sb_cfil_refs; /* # of nested calls */
- uint32_t sb_preconn_hiwat; /* preconnect hiwat mark */
- struct mbuf *sb_sendhead;
- int sb_sendoff;
+ 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 */
+ struct timeval sb_timeo; /* timeout for read/write */
+ void *reserved1; /* for future use if needed */
+ void *reserved2;
} so_rcv, so_snd;
-#define SB_MAX (8192*1024) /* default for max chars in sockbuf */
-#define SB_MSIZE_ADJ 256 /* fixed adjustment for mbuf */
-#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 */
-#define SB_LIMITED 0x8000 /* Socket buffer size limited */
-#define SB_KCTL 0x10000 /* kernel control socket buffer */
-#define SB_SENDHEAD 0x20000
- /* XXX Note that Unix domain socket's sb_flags is defined as short */
- caddr_t so_tpcb; /* Misc. protocol control block, used
- * by some kexts */
-
- void (*so_event)(struct socket *, void *, uint32_t);
- void *so_eventarg; /* Arg for above */
- kauth_cred_t so_cred; /* cred of who opened the socket */
+#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
+
+ void (*so_upcall)(struct socket *so, caddr_t arg, int waitf);
+ caddr_t so_upcallarg; /* Arg for above */
+ uid_t so_uid; /* who opened the socket */
/* NB: generation count must not be first; easiest to make it last. */
- so_gen_t so_gencnt; /* generation count */
- uint32_t so_eventmask; /* event mask */
-
- 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_MARK_WAKE_PKT 0x00200000 /* Mark next packet as wake packet, one shot */
-#define SOF_RECV_WAKE_PKT 0x00400000 /* Receive wake packet indication as ancillary data */
-#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 */
-
- 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_TRACKER_LOOKUP_DONE 0x00000100 /* tracker lookup already performed */
-#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 */
-#define SOF1_WANT_KEV_SOCK_CLOSED 0x02000000 /* Want generation of KEV_SOCKET_CLOSED event */
-#define SOF1_FLOW_DIVERT_SKIP 0x04000000 /* Flow divert already declined to handle the socket */
-#define SOF1_KNOWN_TRACKER 0x08000000 /* Socket is a connection to a known tracker */
-#define SOF1_TRACKER_NON_APP_INITIATED 0x10000000 /* Tracker connection is non-app initiated */
-#define SOF1_APPROVED_APP_DOMAIN 0x20000000 /* Connection is for an approved associated app domain */
-#define SOF1_DOMAIN_INFO_SILENT 0x40000000 /* Maintain silence on any domain information */
-#define SOF1_DOMAIN_MATCHED_POLICY 0x80000000 /* Domain was used for policy evaluation */
-
- uint32_t so_upcallusecount; /* number of upcalls in progress */
- int so_usecount; /* refcounting of socket use */
- int so_retaincnt;
- uint16_t so_traffic_class;
- int8_t so_netsvctype;
- uint8_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 */
-
- 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 flow_divert_pcb *so_fd_pcb; /* Flow Divert control block */
-
- struct soflow_db *so_flow_db;
-
-#if CONTENT_FILTER
- struct cfil_info *so_cfil;
- u_int32_t so_state_change_cnt; /* incr for each connect, disconnect */
-#endif
-
- pid_t e_pid; /* pid of the effective owner */
- u_int64_t e_upid; /* upid of the effective owner */
- pid_t so_rpid; /* pid of the responsible process */
-
- 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 */
- uuid_t so_ruuid; /* UUID of the responsible process */
-
- uid_t so_persona_id; /* persona of effective owner */
-
- int32_t so_policy_gencnt; /* UUID policy gencnt */
-
- u_int64_t so_extended_bk_start;
-
- u_int8_t so_fallback_mode;
-#define SO_FALLBACK_MODE_NONE 0 /* No fallback */
-#define SO_FALLBACK_MODE_FAILOVER 1 /* Fell back after failing over */
-#define SO_FALLBACK_MODE_SLOW 2 /* Fell back after a slow timer */
-#define SO_FALLBACK_MODE_FAST 3 /* Fell back after a fast timer */
-#define SO_FALLBACK_MODE_PREFER 4 /* Fell back with a headstart */
-
- u_int8_t so_log_seqn; /* Multi-layer Packet Logging rolling sequence number */
- uint8_t so_mpkl_send_proto;
- uuid_t so_mpkl_send_uuid;
+ 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 socket_filter_entry *so_filt; /* NKE hook */
+ u_long so_flags; /* Flags */
+#define SOF_NOSIGPIPE 0x00000001
+#define SOF_NOADDRAVAIL 0x00000002 /* returns EADDRNOTAVAIL if src address is gone */
+#define SOF_PCBCLEARING 0x00000004 /* pru_disconnect done, no need to call pru_detach */
+ int so_usecount; /* refcounting of socket use */;
+ int so_retaincnt;
+ u_int32_t so_filteruse; /* usecount for the socket filters */
+ void *reserved3; /* Temporarily in use/debug: last socket lock LR */
+ void *reserved4; /* Temporarily in use/debug: last socket unlock LR */
+
+#endif
};
-
-/* 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_mtod_current(m))->cmsg_len) ? \
- (struct cmsghdr *)(void *)m_mtod_current(m) : (struct cmsghdr * __header_bidi_indexable)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 * __header_bidi_indexable)0L /* NULL */ : \
- (struct cmsghdr *)(void *)((unsigned char *)(cmsg) + \
- __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len)))
-
-/*
- * Need receive options
- */
-#define SO_RECV_CONTROL_OPTS(so) \
- (((so)->so_options & \
- (SO_TIMESTAMP | SO_TIMESTAMP_MONOTONIC | SO_TIMESTAMP_CONTINUOUS)) || \
- ((so)->so_flags & (SOF_RECV_TRAFFIC_CLASS | SOF_RECV_WAKE_PKT)))
+#endif /* KERNEL_PRIVATE */
/*
* Socket state bits.
*/
-#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;
+#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_DRAINING 0x4000 /* close waiting for blocked system calls to drain */
+
+/*
+ * 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 */
};
-/*
- * Externalized form of struct socket used by the sysctl(3) interface.
- */
-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 XNU_TARGET_OS_OSX || KERNEL || !(TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR)
-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 /* XNU_TARGET_OS_OSX || KERNEL || !(TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) */
-
-#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
-#define XSO_UNPCB 0x200
-#define XSO_ROUTEPCB 0x400
-#define XSO_KEYPCB 0x800
-
-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;
- so_gen_t so_gencnt;
- u_int32_t so_flags;
- u_int32_t so_flags1;
- int32_t so_usecount;
- int32_t so_retaincnt;
- u_int32_t xso_filter_flags;
-};
-
-/*
- * Values for xso_filter_flags
- */
-#define XSOFF_SO_FILT 0x01 /* socket filter attached */
-#define XSOFF_FLOW_DB 0x02 /* flow database attached */
-#define XSOFF_CFIL 0x04 /* content filter attached */
-#define XSOFF_FLOW_DIV 0x08 /* flow divert attached */
-
-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];
-};
-
-/*
- * Global socket statistics
- */
-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>
-
-/*
- * 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 */
- 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 BSD_KERNEL_PRIVATE
-struct cmsghdr;
-extern boolean_t is_cmsg_valid(struct mbuf *control, struct cmsghdr *cmsg);
+/*
+ * Macros for sockets and socket buffering.
+ */
+
+#define sbtoso(sb) (sb->sb_so)
+
+/*
+ * Functions for sockets and socket buffering.
+ * These are macros on FreeBSD. On Darwin the
+ * implementation is in bsd/kern/uipc_socket2.c
+ */
+
+__BEGIN_DECLS
+int sb_notify(struct sockbuf *sb);
+long sbspace(struct sockbuf *sb);
+int sosendallatonce(struct socket *so);
+int soreadable(struct socket *so);
+int sowriteable(struct socket *so);
+void sballoc(struct sockbuf *sb, struct mbuf *m);
+void sbfree(struct sockbuf *sb, struct mbuf *m);
+int sblock(struct sockbuf *sb, int wf);
+void sbunlock(struct sockbuf *sb, int locked);
+void sorwakeup(struct socket * so);
+void sowwakeup(struct socket * so);
+__END_DECLS
/*
* Socket extension mechanism: control block hooks:
@@ -604,543 +297,158 @@
* 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 */
-
-/* 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 */
-#define SO_FILT_HINT_WAKE_PKT 0x00200000 /* received wake packet */
-
-#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\26WAKEPKT"
-
-/* 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 | SO_FILT_HINT_WAKE_PKT)
+#define EXT_NULL 0x0 /* STATE: Not in use */
+#define sotokextcb(so) (so ? so->so_ext : 0)
+
+#ifdef KERNEL
+
+#define SO_FILT_HINT_LOCKED 0x1
+
+/*
+ * 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 */
+ 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 */
+};
#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 /* SENDFILE */
-
-#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 && m_length((sb)->sb_mb) != 0) || \
- ((sb)->sb_mb == NULL && (sb)->sb_cc > 0)) \
- panic("corrupt so_rcv (%s:%d): sb_mb %p m_len: %d m_type: %u sb_cc %u sb_ctl %u\n", \
- __func__, __LINE__, \
- (sb)->sb_mb, (sb)->sb_mb != NULL ? m_length((sb)->sb_mb) : 0, \
- (sb)->sb_mb != NULL ? (sb)->sb_mb->m_type : 0, (sb)->sb_cc, (sb)->sb_ctl); \
-} 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_family)
-#define SOCK_TYPE(so) ((so)->so_type)
-#define SOCK_PROTO(so) ((so)->so_protocol)
-
-#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 uint32_t sb_max;
+#endif
+
+#ifdef MALLOC_DECLARE
+MALLOC_DECLARE(M_PCB);
+MALLOC_DECLARE(M_SONAME);
+#endif
+
+extern int maxsockets;
+extern u_long sb_max;
+extern int socket_zone;
extern so_gen_t so_gencnt;
-extern int socket_debug;
-extern int sodefunctlog;
-extern int sothrottlelog;
-extern int sorestrictrecv;
-extern int sorestrictsend;
-extern int somaxconn;
-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;
-
-extern int soreserveheadroom;
-
-#endif /* BSD_KERNEL_PRIVATE */
-
+
+struct file;
+struct filedesc;
struct mbuf;
struct sockaddr;
+struct stat;
struct ucred;
struct uio;
-
-#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;
-};
-__CCT_DECLARE_CONSTRAINED_PTR_TYPES(struct recv_msg_elem, recv_msg_elem);
+struct knote;
/*
* From uipc_socket and friends
*/
__BEGIN_DECLS
-__ASSUME_PTR_ABI_SINGLE_BEGIN
-/* 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);
-extern int sbappendrecord(struct sockbuf *sb, struct mbuf *m0);
-extern int sbappendrecord_nodrop(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 * __sized_by(len), size_t len,
- size_t minlen)
-__attribute__ ((warn_unused_result));
-extern int sooptcopyout(struct sockopt *sopt, void *__sized_by(len) data, size_t len)
-__attribute__ ((warn_unused_result));
-extern int sooptcopyin_bindtodevice(struct sockopt *sopt, char * __sized_by(bufsize) buf, size_t bufsize);
-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, uint32_t sndcc, uint32_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 mbuf *pktlist, size_t total_pkt_len, u_int *pktcnt, int flags);
-extern int soreceive_list(struct socket *so, struct recv_msg_elem *msgarray,
- u_int msgcnt, int *flags);
-extern int soreceive_m_list(struct socket *, u_int *, struct mbuf **madrp,
- struct mbuf **, struct mbuf **, int *);
-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);
-
-
-__ASSUME_PTR_ABI_SINGLE_END
- __END_DECLS
-
-#ifdef BSD_KERNEL_PRIVATE
-struct file;
-struct filedesc;
-struct so_tcdbg;
-
-__BEGIN_DECLS
-__ASSUME_PTR_ABI_SINGLE_BEGIN
-/* 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, socklen_t 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 sbappend_nodrop(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 sbappendstream_rcvdemux(struct socket *so, struct mbuf *m);
-#if MPTCP
-extern int sbappendmptcpstream_rcv(struct sockbuf *sb, struct mbuf *m);
-#endif /* MPTCP */
-extern void sblastmbufchk(struct sockbuf *, const char *);
-extern void sblastrecordchk(struct sockbuf *, const char *);
-extern struct mbuf *sbcreatecontrol(caddr_t __sized_by(size) p, int size, int type, int level);
-extern struct mbuf **sbcreatecontrol_mbuf(caddr_t __sized_by(size) 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, uint32_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);
-
-/* Note: zero out the buffer and set sa_len to size */
-static inline void *
-__sized_by_or_null(size)
-alloc_sockaddr(size_t size, zalloc_flags_t flags)
-{
- if (__improbable(size > UINT8_MAX)) {
- panic("invalid size");
- }
- __typed_allocators_ignore_push
- void * buf = kheap_alloc(KHEAP_SONAME, size, flags | Z_ZERO);
- __typed_allocators_ignore_pop
- if (buf != NULL) {
- struct sockaddr *sa = __unsafe_forge_bidi_indexable(struct sockaddr *,
- buf, sizeof(struct sockaddr));
- sa->sa_len = (uint8_t)size;
- }
-
- return buf;
-}
-
-#if XNU_TARGET_OS_OSX
-#define free_sockaddr(sa) do { \
- __typed_allocators_ignore_push \
- kheap_free_addr(KHEAP_SONAME, (sa)); \
- __typed_allocators_ignore_pop \
-} while (0)
-#else /* XNU_TARGET_OS_OSX */
-#define free_sockaddr(sa) do { \
-if ((sa) != NULL) { \
- __typed_allocators_ignore_push \
- kheap_free_bounded(KHEAP_SONAME, (sa), 1, UINT8_MAX); \
- __typed_allocators_ignore_pop \
-} \
-} while (0)
-#endif /* XNU_TARGET_OS_OSX */
-
-/*
- * Flags to sblock().
- */
-#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(void);
-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);
-/* 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, uint32_t 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 __sized_by(IOCPARM_LEN(cmd)) 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 XNU_TARGET_OS_OSX
-extern void sotoxsocket64(struct socket *so, struct xsocket64 *xso);
-#endif /* XNU_TARGET_OS_OSX */
-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 *);
-
-extern int soo_ioctl(struct fileproc *, u_long cmd,
- caddr_t __sized_by(IOCPARM_LEN(cmd)), 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 *);
-
-#define TRACKER_DOMAIN_MAX 253
-#define TRACKER_DOMAIN_SHORT_MAX 63
-
-typedef struct tracker_metadata {
- uint32_t flags;
- char domain[TRACKER_DOMAIN_MAX + 1];
- char domain_owner[TRACKER_DOMAIN_MAX + 1];
-} tracker_metadata_t;
-
-typedef struct tracker_metadata_short {
- uint32_t flags;
- char domain[TRACKER_DOMAIN_SHORT_MAX + 1];
- char domain_owner[TRACKER_DOMAIN_SHORT_MAX + 1];
-} tracker_metadata_short_t;
-
-// metadata will be filled out by the lookup.
-// Set the SO_TRACKER_ATTRIBUTE_FLAGS_EXTENDED_TIMEOUT flag in the metadata to request that the
-// entry be extended.
-extern int tracker_lookup(uuid_t app_uuid, struct sockaddr *, tracker_metadata_t *metadata);
-
-/*
- * Socket flow management
- */
-
-#define IS_INET(so) (so != NULL && (SOCK_CHECK_DOM(so, AF_INET) || SOCK_CHECK_DOM(so, AF_INET6)))
-#define IS_TCP(so) (so != NULL && SOCK_CHECK_TYPE(so, SOCK_STREAM) && SOCK_CHECK_PROTO(so, IPPROTO_TCP))
-#define IS_UDP(so) (so != NULL && SOCK_CHECK_TYPE(so, SOCK_DGRAM) && SOCK_CHECK_PROTO(so, IPPROTO_UDP))
-
-// For iOS, keep track of flows for UDP sockets only.
-// For OSX, keep track of flows for all datagram sockets.
-#if !XNU_TARGET_OS_OSX
-#define NEED_DGRAM_FLOW_TRACKING(so) (IS_INET(so) && IS_UDP(so))
-#else
-#define NEED_DGRAM_FLOW_TRACKING(so) (IS_INET(so) && !IS_TCP(so))
-#endif
-
-// Check if socket flow tracking is present for socket
-#define SOFLOW_ENABLED(so) (so != NULL && (so->so_flow_db != NULL))
-
-
-typedef enum {
- SOFLOW_DIRECTION_UNKNOWN = 0,
- SOFLOW_DIRECTION_OUTBOUND = 1,
- SOFLOW_DIRECTION_INBOUND = 2,
-} soflow_direction_t;
-
-extern struct soflow_hash_entry *soflow_get_flow(struct socket *, struct sockaddr *, struct sockaddr *, struct mbuf *, size_t, soflow_direction_t, u_short);
-extern void soflow_free_flow(struct soflow_hash_entry *);
-extern void soflow_detach(struct socket *);
-
-/* 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 */
-
-extern void so_update_tx_data_stats(struct socket *, uint32_t, uint32_t);
-
-extern void set_packet_service_class(struct mbuf *, struct socket *,
- mbuf_svc_class_t, u_int32_t);
-extern int ip_tos_from_control(struct mbuf *);
-extern mbuf_svc_class_t so_tc2msc(int);
-extern int so_svc2tc(mbuf_svc_class_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 *);
-#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 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);
-extern int so_wait_for_if_feedback(struct socket *);
-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 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);
-
-extern int tcp_notsent_lowat_check(struct socket *so);
-
-extern user_ssize_t recv_msg_array_resid(struct recv_msg_elem * __counted_by(count), u_int count);
-
-void sotoxsocket_n(struct socket *, struct xsocket_n *);
-void sbtoxsockbuf_n(struct sockbuf *, struct xsockbuf_n *);
-void sbtoxsockstat_n(struct socket *, struct xsockstat_n *);
-
-extern bool socket_tracker_lookup_locked(struct socket *, struct sockaddr *);
-
-__ASSUME_PTR_ABI_SINGLE_END
- __END_DECLS
-#endif /* BSD_KERNEL_PRIVATE */
+struct sockaddr *dup_sockaddr(struct sockaddr *sa, int canwait);
+int getsock(struct filedesc *fdp, int fd, struct file **fpp);
+int sockargs(struct mbuf **mp, user_addr_t data, int buflen, int type);
+int getsockaddr(struct sockaddr **namp, user_addr_t uaddr, size_t len);
+int sbappend(struct sockbuf *sb, struct mbuf *m);
+int sbappendaddr(struct sockbuf *sb, struct sockaddr *asa,
+ struct mbuf *m0, struct mbuf *control, int *error_out);
+int sbappendcontrol(struct sockbuf *sb, struct mbuf *m0,
+ struct mbuf *control, int *error_out);
+int sbappendrecord(struct sockbuf *sb, struct mbuf *m0);
+void sbcheck(struct sockbuf *sb);
+int sbcompress(struct sockbuf *sb, struct mbuf *m, struct mbuf *n);
+struct mbuf *
+ sbcreatecontrol(caddr_t p, int size, int type, int level);
+void sbdrop(struct sockbuf *sb, int len);
+void sbdroprecord(struct sockbuf *sb);
+void sbflush(struct sockbuf *sb);
+int sbinsertoob(struct sockbuf *sb, struct mbuf *m0);
+void sbrelease(struct sockbuf *sb);
+int sbreserve(struct sockbuf *sb, u_long cc);
+void sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb);
+int sbwait(struct sockbuf *sb);
+int sb_lock(struct sockbuf *sb);
+int soabort(struct socket *so);
+int soaccept(struct socket *so, struct sockaddr **nam);
+int soacceptlock (struct socket *so, struct sockaddr **nam, int dolock);
+struct socket *soalloc(int waitok, int dom, int type);
+int sobind(struct socket *so, struct sockaddr *nam);
+void socantrcvmore(struct socket *so);
+void socantsendmore(struct socket *so);
+int soclose(struct socket *so);
+int soconnect(struct socket *so, struct sockaddr *nam);
+int soconnectlock (struct socket *so, struct sockaddr *nam, int dolock);
+int soconnect2(struct socket *so1, struct socket *so2);
+int socreate(int dom, struct socket **aso, int type, int proto);
+void sodealloc(struct socket *so);
+int sodisconnect(struct socket *so);
+void sofree(struct socket *so);
+int sogetopt(struct socket *so, struct sockopt *sopt);
+void sohasoutofband(struct socket *so);
+void soisconnected(struct socket *so);
+void soisconnecting(struct socket *so);
+void soisdisconnected(struct socket *so);
+void soisdisconnecting(struct socket *so);
+int solisten(struct socket *so, int backlog);
+struct socket *
+ sodropablereq(struct socket *head);
+struct socket *
+ sonewconn(struct socket *head, int connstatus, const struct sockaddr* from);
+int sooptcopyin(struct sockopt *sopt, void *data, size_t len, size_t minlen);
+int sooptcopyout(struct sockopt *sopt, void *data, size_t len);
+int socket_lock(struct socket *so, int refcount);
+int socket_unlock(struct socket *so, int refcount);
+
+/*
+ * XXX; prepare mbuf for (__FreeBSD__ < 3) routines.
+ * Used primarily in IPSec and IPv6 code.
+ */
+int soopt_getm(struct sockopt *sopt, struct mbuf **mp);
+int soopt_mcopyin(struct sockopt *sopt, struct mbuf *m);
+int soopt_mcopyout(struct sockopt *sopt, struct mbuf *m);
+
+int sopoll(struct socket *so, int events, struct ucred *cred, void *wql);
+int soreceive(struct socket *so, struct sockaddr **paddr,
+ struct uio *uio, struct mbuf **mp0,
+ struct mbuf **controlp, int *flagsp);
+int soreserve(struct socket *so, u_long sndcc, u_long rcvcc);
+void sorflush(struct socket *so);
+int sosend(struct socket *so, struct sockaddr *addr, struct uio *uio,
+ struct mbuf *top, struct mbuf *control, int flags);
+
+int sosetopt(struct socket *so, struct sockopt *sopt);
+int soshutdown(struct socket *so, int how);
+void sotoxsocket(struct socket *so, struct xsocket *xso);
+void sowakeup(struct socket *so, struct sockbuf *sb);
+int soioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p);
+
+#ifndef __APPLE__
+/* accept filter functions */
+int accept_filt_add(struct accept_filter *filt);
+int accept_filt_del(char *name);
+struct accept_filter * accept_filt_get(char *name);
+#ifdef ACCEPT_FILTER_MOD
+int accept_filt_generic_mod_event(module_t mod, int event, void *data);
+SYSCTL_DECL(_net_inet_accf);
+#endif /* ACCEPT_FILTER_MOD */
+#endif /* !defined(__APPLE__) */
+
+__END_DECLS
+
+#endif /* KERNEL */
#endif /* KERNEL_PRIVATE */
-// Tracker actions
-enum so_tracker_action {
- SO_TRACKER_ACTION_INVALID = 0,
- SO_TRACKER_ACTION_ADD = 1,
- SO_TRACKER_ACTION_DUMP_BY_APP = 2,
- SO_TRACKER_ACTION_DUMP_ALL = 3,
- SO_TRACKER_ACTION_DUMP_MAX,
-};
-
-// Tracker TLV attributes
-enum so_tracker_attribute {
- SO_TRACKER_ATTRIBUTE_INVALID = 0,
- SO_TRACKER_ATTRIBUTE_ADDRESS_FAMILY = 1,
- SO_TRACKER_ATTRIBUTE_ADDRESS = 2,
- SO_TRACKER_ATTRIBUTE_APP_UUID = 3,
- SO_TRACKER_ATTRIBUTE_DOMAIN = 4,
- SO_TRACKER_ATTRIBUTE_DOMAIN_OWNER = 5,
- SO_TRACKER_ATTRIBUTE_FLAGS = 6,
- SO_TRACKER_ATTRIBUTE_DUMP_ENTRY = 7,
- SO_TRACKER_ATTRIBUTE_MEMORY_USED = 8,
- SO_TRACKER_ATTRIBUTE_MAX,
-};
-
-// Tracker flags
-#define SO_TRACKER_ATTRIBUTE_FLAGS_APP_APPROVED 0x00000001
-#define SO_TRACKER_ATTRIBUTE_FLAGS_TRACKER 0x00000002
-#define SO_TRACKER_ATTRIBUTE_FLAGS_DOMAIN_SHORT 0x00000004
-#define SO_TRACKER_ATTRIBUTE_FLAGS_EXTENDED_TIMEOUT 0x00000008
-
-#ifndef KERNEL
-#define SO_TRACKER_TRANSPARENCY_VERSION 3
-extern int tracker_action(int action, char *buffer, size_t buffer_size);
-#endif
-
#endif /* !_SYS_SOCKETVAR_H_ */