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- /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @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 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.
- *
- * 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 8.1 (Berkeley) 6/2/93
- */
-
- #ifndef _SYS_SOCKETVAR_H_
- #define _SYS_SOCKETVAR_H_
-
- #include <sys/select.h> /* for struct selinfo */
- #include <sys/queue.h>
- #include <net/kext_net.h>
- #include <sys/ev.h>
- /*
- * Hacks to get around compiler complaints
- */
- struct mbuf;
- struct socket;
- struct uio;
- struct sockbuf;
- struct sockaddr;
- struct kextcb;
- struct protosw;
- struct sockif;
- struct sockutil;
-
- /* 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.
- */
- typedef u_quad_t so_gen_t;
-
- 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 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_q0 queues partially completed connections,
- * while so_q 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_q0 or so_q.
- * 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 */
- /*
- * 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 */
- struct socket *sb_so; /* socket back ptr */
- 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;
- } 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_NOTIFY (SB_WAIT|SB_SEL|SB_ASYNC)
- #define SB_UPCALL 0x20 /* someone wants an upcall */
- #define SB_NOINTR 0x40 /* operations not interruptible */
- #define SB_RECV 0x8000 /* this is rcv sb */
-
- caddr_t so_tpcb; /* Wisc. protocol control block XXX */
- 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 */
- /* NB: generation count must not be first; easiest to make it last. */
- so_gen_t so_gencnt; /* generation count */
- 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 */
- void *reserved1; /* for future use if needed */
- void *reserved2;
- void *reserved3;
- void *reserved4;
- };
-
- /*
- * 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 */
-
- /*
- * 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 */
- };
-
- /*
- * Macros for sockets and socket buffering.
- */
- #define sbtoso(sb) (sb->sb_so)
-
-
- /*
- * 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
- /*
- * 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 */
- };
-
- #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 */
- };
-
- #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;
-
- struct file;
- struct filedesc;
- struct mbuf;
- struct sockaddr;
- struct stat;
- struct ucred;
- struct uio;
-
- /*
- * File operations on sockets.
- */
- int soo_read __P((struct file *fp, struct uio *uio, struct ucred *cred));
- int soo_write __P((struct file *fp, struct uio *uio, struct ucred *cred));
- int soo_ioctl __P((struct file *fp, u_long cmd, caddr_t data,
- struct proc *p));
- int soo_select __P((struct file *fp, int which, void * wql, struct proc *p));
- int soo_stat __P((struct socket *so, struct stat *ub));
-
- int soo_close __P((struct file *fp, struct proc *p));
-
-
- /*
- * From uipc_socket and friends
- */
- 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));
- 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));
- 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));
-
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-
-
- #endif /* KERNEL */
- #endif /* !_SYS_SOCKETVAR_H_ */
-