X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/e3027f41d0120b4278cca462f397b6619dcd9ac5..d1ecb069dfe24481e4a83f44cb5217a2b06746d7:/bsd/sys/socketvar.h diff --git a/bsd/sys/socketvar.h b/bsd/sys/socketvar.h index c8293aeae..804984822 100644 --- a/bsd/sys/socketvar.h +++ b/bsd/sys/socketvar.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2009 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_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 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. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * 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 OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */ /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ @@ -53,37 +59,44 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * @(#)socketvar.h 8.1 (Berkeley) 6/2/93 + * @(#)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_ +#ifndef _SYS_SOCKETVAR_H_ +#define _SYS_SOCKETVAR_H_ +#include +#include /* for TAILQ macros */ #include /* for struct selinfo */ -#include #include #include +#include + /* * Hacks to get around compiler complaints */ struct mbuf; -struct socket; -struct uio; -struct sockbuf; -struct sockaddr; -struct kextcb; +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 +#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. @@ -91,30 +104,38 @@ extern char netio[], netcon[], netcls[]; * 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 */ + 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 */ + 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_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. - */ + /* + * 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; /* queue of partial unaccepted connections */ - TAILQ_HEAD(, socket) so_comp; /* queue of complete unaccepted connections */ + 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 @@ -123,183 +144,235 @@ struct socket { 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. - */ + 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_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 */ + 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 socket *sb_so; /* socket back ptr */ + 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 */ - short sb_timeo; /* timeout for read/write */ + struct timeval sb_timeo; /* timeout for read/write */ + u_int sb_maxused; /* max char count ever used in sockbuf */ + void *reserved1[4]; /* for future use */ } so_rcv, so_snd; -#define SB_MAX (256*1024) /* default for max chars in sockbuf */ +#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_XXX 0x08 /* Don't use. replaced by SI_SBSEL in selinfo */ +#define SB_SEL 0x08 /* someone is selecting */ #define SB_ASYNC 0x10 /* ASYNC I/O, need signals */ -#define SB_NOTIFY (SB_WAIT|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 */ +#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_RECV 0x8000 /* this is rcv sb */ + + caddr_t so_tpcb; /* Wisc. protocol control block - XXX unused? */ +#endif - caddr_t so_tpcb; /* Wisc. protocol control block XXX */ - void (*so_upcall) __P((struct socket *so, caddr_t arg, int waitf)); + 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 */ - TAILQ_HEAD(,eventqelt) so_evlist; - int cached_in_sock_layer; /* Is socket bundled with pcb/pcb.inp_ppcb? */ +#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_long cache_timestamp; + 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 kextcb *so_ext; /* NKE hook */ + 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 /* accepted socket marked as inactive */ +#define SOF_CLOSEWAIT 0x10 /* blocked in close awaiting some events */ +#define SOF_UPCALLINUSE 0x20 /* socket upcall is currently in progress */ +#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 */ + 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 */ }; +#endif /* KERNEL_PRIVATE */ /* * 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_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 */ + +#if defined(__LP64__) +#define _XSOCKET_PTR(x) u_int32_t +#else +#define _XSOCKET_PTR(x) x +#endif + +#pragma pack(4) + +struct xsockbuf { + u_int32_t sb_cc; + u_int32_t sb_hiwat; + u_int32_t sb_mbcnt; + u_int32_t sb_mbmax; + int32_t sb_lowat; + short sb_flags; + short sb_timeo; +}; /* * Externalized form of struct socket used by the sysctl(3) interface. */ struct xsocket { - size_t xso_len; /* length of this structure */ - struct socket *xso_so; /* makes a convenient handle sometimes */ - short so_type; - short so_options; - short so_linger; - short so_state; - caddr_t so_pcb; /* another convenient handle */ - int xso_protocol; - int xso_family; - short so_qlen; - short so_incqlen; - short so_qlimit; - short so_timeo; - u_short so_error; - pid_t so_pgid; - u_long so_oobmark; - struct xsockbuf { - u_long sb_cc; - u_long sb_hiwat; - u_long sb_mbcnt; - u_long sb_mbmax; - long sb_lowat; - short sb_flags; - short sb_timeo; - } so_rcv, so_snd; - uid_t so_uid; /* XXX */ + 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 */ }; -/* - * Macros for sockets and socket buffering. - */ -#define sbtoso(sb) (sb->sb_so) +#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 */ +}; -/* - * Do we need to notify the other side when I/O is possible? - */ -#define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT|SB_ASYNC|SB_UPCALL)) != 0 || ((sb)->sb_sel.si_flags & SI_SBSEL) != 0) +#endif /* !CONFIG_EMBEDDED */ + +#pragma pack() +#ifdef KERNEL_PRIVATE /* - * How much space is there in a socket buffer (so->so_snd or so->so_rcv)? - * This is problematical if the fields are unsigned, as the space might - * still be negative (cc > hiwat or mbcnt > mbmax). Should detect - * overflow and return 0. Should use "lmin" but it doesn't exist now. + * Macros for sockets and socket buffering. */ -#define sbspace(sb) \ - ((long) imin((int)((sb)->sb_hiwat - (sb)->sb_cc), \ - (int)((sb)->sb_mbmax - (sb)->sb_mbcnt))) - -/* do we have to send all at once on a socket? */ -#define sosendallatonce(so) \ - ((so)->so_proto->pr_flags & PR_ATOMIC) - -/* can we read something from so? */ -#define soreadable(so) \ - ((so)->so_rcv.sb_cc >= (so)->so_rcv.sb_lowat || \ - ((so)->so_state & SS_CANTRCVMORE) || \ - (so)->so_comp.tqh_first || (so)->so_error) - -/* can we write something to so? */ -#define sowriteable(so) \ - ((sbspace(&(so)->so_snd) >= (so)->so_snd.sb_lowat && \ - (((so)->so_state&SS_ISCONNECTED) || \ - ((so)->so_proto->pr_flags&PR_CONNREQUIRED)==0)) || \ - ((so)->so_state & SS_CANTSENDMORE) || \ - (so)->so_error) - -/* adjust counters in sb reflecting allocation of m */ -#define sballoc(sb, m) { \ - (sb)->sb_cc += (m)->m_len; \ - (sb)->sb_mbcnt += MSIZE; \ - if ((m)->m_flags & M_EXT) \ - (sb)->sb_mbcnt += (m)->m_ext.ext_size; \ -} -/* adjust counters in sb reflecting freeing of m */ -#define sbfree(sb, m) { \ - (sb)->sb_cc -= (m)->m_len; \ - (sb)->sb_mbcnt -= MSIZE; \ - if ((m)->m_flags & M_EXT) \ - (sb)->sb_mbcnt -= (m)->m_ext.ext_size; \ -} +#define sbtoso(sb) (sb->sb_so) /* - * Set lock on sockbuf sb; sleep if lock is already held. - * Unless SB_NOINTR is set on sockbuf, sleep is interruptible. - * Returns error without lock if sleep is interrupted. + * Functions for sockets and socket buffering. + * These are macros on FreeBSD. On Darwin the + * implementation is in bsd/kern/uipc_socket2.c */ -#define sblock(sb, wf) ((sb)->sb_flags & SB_LOCK ? \ - (((wf) == M_WAIT) ? sb_lock(sb) : EWOULDBLOCK) : \ - ((sb)->sb_flags |= SB_LOCK), 0) - -/* release lock on sockbuf sb */ -#define sbunlock(sb) { \ - (sb)->sb_flags &= ~SB_LOCK; \ - if ((sb)->sb_flags & SB_WANT) { \ - (sb)->sb_flags &= ~SB_WANT; \ - wakeup((caddr_t)&(sb)->sb_flags); \ - } \ -} - -#define sorwakeup(so) do { \ - if (sb_notify(&(so)->so_rcv)) \ - sowakeup((so), &(so)->so_rcv); \ - } while (0) - -#define sowwakeup(so) do { \ - if (sb_notify(&(so)->so_snd)) \ - sowakeup((so), &(so)->so_snd); \ - } while (0) +__BEGIN_DECLS +int 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: @@ -308,18 +381,21 @@ struct xsocket { * the NFDescriptor to permit selective replacement during * operation, e.g., to disable some functions. */ -struct kextcb -{ struct kextcb *e_next; /* Next kext control block */ +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) +#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. @@ -329,20 +405,18 @@ 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 */ + 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 */ }; - #endif #ifdef MALLOC_DECLARE @@ -351,9 +425,13 @@ MALLOC_DECLARE(M_SONAME); #endif extern int maxsockets; -extern u_long sb_max; +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 somaxconn; struct file; struct filedesc; @@ -362,89 +440,135 @@ struct sockaddr; struct stat; struct ucred; struct uio; +struct knote; -/* - * 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, struct proc *p)); -int soo_stat __P((struct socket *so, struct stat *ub)); +#define SBLASTRECORDCHK(sb, s) \ + if (socket_debug) sblastrecordchk(sb, s); -int soo_close __P((struct file *fp, struct proc *p)); +#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; \ + } \ +} /* * 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)); -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)); +__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 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 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 soisdisconnecting(struct socket *so); +extern int soisbackground(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 *); +/* + * 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_EMBEDDED +extern void sotoxsocket64(struct socket *so, struct xsocket64 *xso); +#endif +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_MOD +extern 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_ */