Cider Isn't Darwin Emulation, Really
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All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ *//* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved *//* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved *//*- * Copyright (c) 1982, 1986, 1990, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)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 <net/kext_net.h>#include <sys/ev.h>#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[];#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 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;};#endif /* PRIVATE */
#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 */ 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 */ u_short so_error; /* error affecting connection */ pid_t so_pgid; /* pgid for signals */ u_int32_t 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_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 */#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 */ u_int32_t sb_idealsize; /* Ideal size for the sb based on bandwidth and delay */ void *reserved1[4]; /* for future use */ } so_rcv, so_snd;#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 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 */#define SB_USRSIZE 0x200 /* user specified sbreserve */#ifndef __APPLE__#define SB_AIO 0x80 /* AIO operations queued */#else#define SB_NOTIFY (SB_WAIT|SB_SEL|SB_ASYNC)#define SB_DROP 0x400 /* does not accept any more data */#define SB_UNIX 0x800 /* UNIX domain socket buffer */#define SB_AUTOSIZE 0x1000 /* automatically size socket buffer */#define SB_TRIM 0x2000 /* Trim the socket buffer */#define SB_RECV 0x8000 /* this is rcv sb */
caddr_t so_tpcb; /* Wisc. protocol control block, used by some kexts */#endif
void (*so_upcall)(struct socket *so, caddr_t arg, int waitf); caddr_t so_upcallarg; /* 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; /* bundled with pcb/pcb.inp_ppcb? */ struct socket *cache_next; struct socket *cache_prev; u_int32_t 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_int32_t so_flags; /* Flags */#define SOF_NOSIGPIPE 0x1#define SOF_NOADDRAVAIL 0x2 /* EADDRNOTAVAIL if src addr is gone */#define SOF_PCBCLEARING 0x4 /* pru_disconnect done; don't call pru_detach */#define SOF_DEFUNCT 0x8 /* socket marked as inactive */#define SOF_CLOSEWAIT 0x10 /* blocked in close awaiting some events */#define SOF_REUSESHAREUID 0x40 /* Allows SO_REUSEADDR/SO_REUSEPORT for multiple so_uid */#define SOF_MULTIPAGES 0x80 /* jumbo clusters may be used for sosend */#define SOF_ABORTED 0x100 /* soabort was already called once on the socket */#define SOF_OVERFLOW 0x200 /* socket was dropped as overflow of listen queue */#ifdef __APPLE_API_PRIVATE#define SOF_NOTIFYCONFLICT 0x400 /* notify that a bind was done on a port already in use */#endif#define SOF_UPCALLCLOSEWAIT 0x800 /* block on close until an upcall returns */#define SOF_BINDRANDOMPORT 0x1000 /* Request a randomized port number for the bind */#define SOF_NPX_SETOPTSHUT 0x2000 /* Non POSIX extension to allow setsockopt(2) after shut down */#define SOF_RECV_TRAFFIC_CLASS 0x4000 /* Receive traffic class as ancillary data */#define SOF_NODEFUNCT 0x8000 /* socket cannot be defunct'd */#define SOF_PRIVILEGED_TRAFFIC_CLASS 0x10000 /* traffic class is privileged */#define SOF_SUSPENDED 0x20000 /* interface output queue is suspended */#define SOF_INCOMP_INPROGRESS 0x40000 /* incomp socket still being processed */#define SOF_NOTSENT_LOWAT 0x80000 /* A different lowat on not sent data has been set */#define SOF_KNOTE 0x100000 /* socket is on the EV_SOCK klist */#define SOF_USELRO 0x200000 /* TCP must use LRO on these sockets */ 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_int32_t so_traffic_mgt_flags; /* traffic_mgt socket config */ thread_t so_send_filt_thread; u_int32_t so_restrictions;
/* for debug pruposes */#define SO_LCKDBG_MAX 4 /* number of debug locking Link Registers recorded */ void *lock_lr[SO_LCKDBG_MAX]; /* locking calling history */ int next_lock_lr; void *unlock_lr[SO_LCKDBG_MAX]; /* unlocking caller history */ int next_unlock_lr; void *reserved; /* reserved for future use */#endif /* __APPLE__ */
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 */ int so_traffic_class;
// last process to interact with this socket u_int64_t last_upid; pid_t last_pid; struct data_stats so_tc_stats[SO_TC_STATS_MAX]; struct klist so_klist; /* klist for EV_SOCK events */};
/* 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)))
#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 */
#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 { 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
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 */};
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];};
#endif /* PRIVATE */
#pragma pack()
#ifdef KERNEL_PRIVATE/* * 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_DECLSint sb_notify(struct sockbuf *sb);int 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: * This is the "head" of any control block for an extenstion * Note: we separate intercept function dispatch vectors from * 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 */ /* Plug-in support - intercept 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)
#ifdef KERNEL#include <sys/kpi_mbuf.h>
/* 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 connection */#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_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)
/* * 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 SENDFILEstruct 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 */};#endif
#ifdef MALLOC_DECLAREMALLOC_DECLARE(M_PCB);MALLOC_DECLARE(M_SONAME);#endif
extern int maxsockets;extern u_int32_t sb_max;extern int socket_zone;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 somaxconn;
struct file;struct filedesc;struct mbuf;struct sockaddr;struct stat;struct ucred;struct uio;struct knote;struct so_tcdbg;
#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(x) do { if (sodefunctlog) printf x; } while (0)
#define SOTHROTTLELOG(x) do { if (sothrottlelog) printf x; } while (0)
/* * For debugging traffic class behaviors */#define SOTCDB_NO_DSCP 0x01 /* Do not set DSCP code in IP header */#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 */
extern u_int32_t sotcdb;
/* * From uipc_socket and friends */__BEGIN_DECLS/* Not exported */extern void socketinit(void) __attribute__((section("__TEXT, initcode")));
/* Exported */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 int sbappend(struct sockbuf *sb, struct mbuf *m);extern int sbappendstream(struct sockbuf *sb, struct mbuf *m);extern int sbappendaddr(struct sockbuf *sb, struct sockaddr *asa, struct mbuf *m0, struct mbuf *control, int *error_out);extern int sbappendcontrol(struct sockbuf *sb, struct mbuf *m0, struct mbuf *control, int *error_out);extern int sbappendrecord(struct sockbuf *sb, struct mbuf *m0);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 sbflush(struct sockbuf *sb);extern int sbinsertoob(struct sockbuf *sb, struct mbuf *m0);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 int sb_lock(struct sockbuf *sb);extern void sb_empty_assert(struct sockbuf *, const char *);
extern int soabort(struct socket *so);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);extern struct socket *soalloc(int waitok, int dom, int type);extern int sobind(struct socket *so, struct sockaddr *nam);extern void socantrcvmore(struct socket *so);extern void socantsendmore(struct socket *so);extern int soclose(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 socreate(int dom, struct socket **aso, int type, int proto);extern void sodealloc(struct socket *so);extern int sodisconnect(struct socket *so);extern int sodisconnectlocked(struct socket *so);extern void sofree(struct socket *so);extern void soreference(struct socket *so);extern void sodereference(struct socket *so);extern void somultipages(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 sogetopt(struct socket *so, struct sockopt *sopt);extern void sohasoutofband(struct socket *so);extern void soisconnected(struct socket *so);extern void soisconnecting(struct socket *so);extern void soisdisconnected(struct socket *so);extern void sodisconnectwakeup(struct socket *so);extern void soisdisconnecting(struct socket *so);extern int soisthrottled(struct socket *so);extern int soisprivilegedtraffic(struct socket *so);extern int solisten(struct socket *so, int backlog);extern struct socket *sodropablereq(struct socket *head);extern struct socket *sonewconn(struct socket *head, int connstatus, const struct sockaddr *from);extern int sooptcopyin(struct sockopt *sopt, void *data, size_t len, size_t minlen);extern int sooptcopyout(struct sockopt *sopt, void *data, size_t len);extern int socket_lock(struct socket *so, int refcount);extern int socket_unlock(struct socket *so, int refcount);extern void sofreelastref(struct socket *, int);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 get_sockev_state(struct socket *, u_int32_t *);
#ifdef BSD_KERNEL_PRIVATE/* 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 */
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 mbuf_svc_class_t mbuf_service_class_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_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 void socket_tclass_init(void);extern int so_set_tcdbg(struct socket *, struct so_tcdbg *);extern int sogetopt_tcdbg(struct socket *, struct sockopt *);extern void so_recv_data_stat(struct socket *, struct mbuf *, size_t);extern int so_wait_for_if_feedback(struct socket *);#endif /* BSD_KERNEL_PRIVATE */
/* * XXX; prepare mbuf for (__FreeBSD__ < 3) routines. * Used primarily in IPSec and IPv6 code. */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 int sopoll(struct socket *so, int events, struct ucred *cred, void *wql);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 sorflush(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 sosetopt(struct socket *so, struct sockopt *sopt);extern int soshutdown(struct socket *so, int how);extern int soshutdownlock(struct socket *so, int how);extern void sotoxsocket(struct socket *so, struct xsocket *xso);#if !CONFIG_EMBEDDEDextern void sotoxsocket64(struct socket *so, struct xsocket64 *xso);#endifextern void sbwakeup(struct sockbuf *sb);extern void sowakeup(struct socket *so, struct sockbuf *sb);extern int soioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p);
#ifndef __APPLE__/* accept filter functions */extern int accept_filt_add(struct accept_filter *filt);extern int accept_filt_del(char *name);extern struct accept_filter *accept_filt_get(char *name);#ifdef ACCEPT_FILTER_MODextern 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 */
#endif /* !_SYS_SOCKETVAR_H_ */