X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..9bccf70c0258c7cac2dcb80011b2a964d884c552:/bsd/sys/socketvar.h diff --git a/bsd/sys/socketvar.h b/bsd/sys/socketvar.h index d9e2b7be5..bf767c249 100644 --- a/bsd/sys/socketvar.h +++ b/bsd/sys/socketvar.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * @@ -53,30 +53,29 @@ * 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 $ */ -#ifndef _SYS_SOCKETVAR_H_ +#ifndef _SYS_SOCKETVAR_H_ #define _SYS_SOCKETVAR_H_ +#include +#include /* for TAILQ macros */ #include /* for struct selinfo */ -#include #include #include /* * 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: */ +#ifdef __APPLE_API_UNSTABLE extern char netio[], netcon[], netcls[]; #define SOCKET_CACHE_ON #define SO_CACHE_FLUSH_INTERVAL 1 /* Seconds */ @@ -93,22 +92,27 @@ extern char netio[], netcon[], netcls[]; */ typedef u_quad_t so_gen_t; +#ifndef __APPLE__ +/* We don't support BSD style socket filters */ +struct accept_filter; +#endif + struct socket { - int so_zone; /* zone we were allocated from */ - short so_type; /* generic type, see socket.h */ + 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 */ + 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. + * 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_q0 queues partially completed connections, - * while so_q is a queue of connections ready to be accepted. + * 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_q0 or so_q. + * 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. */ @@ -124,6 +128,10 @@ struct socket { 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. */ @@ -134,28 +142,46 @@ struct socket { 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 */ +#if __APPLE__ + struct socket *sb_so; /* socket back ptr for kexts */ +#endif struct selinfo sb_sel; /* process selecting read/write */ short sb_flags; /* flags, see below */ short sb_timeo; /* timeout for read/write */ + void *reserved1; /* for future use if needed */ + void *reserved2; } 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_ASYNC 0x10 /* ASYNC I/O, need signals */ +#define SB_UPCALL 0x20 /* someone wants an upcall */ +#define SB_NOINTR 0x40 /* operations not interruptible */ +#ifndef __APPLE__ +#define SB_AIO 0x80 /* AIO operations queued */ +#define SB_KNOTE 0x100 /* kernel note attached */ +#else #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 */ + caddr_t so_tpcb; /* Wisc. protocol control block - XXX unused? */ +#endif + 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 */ +#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; @@ -166,7 +192,14 @@ struct socket { /* Plug-in support - make the socket interface overridable */ struct mbuf *so_tail; struct kextcb *so_ext; /* NKE hook */ + u_long so_flags; /* Flags */ +#define SOF_NOSIGPIPE 0x00000001 + void *reserved2; + void *reserved3; + void *reserved4; +#endif }; +#endif /* __APPLE_API_UNSTABLE */ /* * Socket state bits. @@ -185,6 +218,7 @@ struct socket { #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 */ /* * Externalized form of struct socket used by the sysctl(3) interface. @@ -221,85 +255,26 @@ struct xsocket { /* * Macros for sockets and socket buffering. */ +#ifdef __APPLE__ +#ifdef __APPLE_API_UNSTABLE #define sbtoso(sb) (sb->sb_so) /* - * Do we need to notify the other side when I/O is possible? + * Functions for sockets and socket buffering. + * These are macros on FreeBSD. On Darwin the + * implementation is in bsd/kern/uipc_socket2.c */ -#define sb_notify(sb) (((sb)->sb_flags & (SB_WAIT|SB_SEL|SB_ASYNC|SB_UPCALL)) != 0) - -/* - * 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. - */ -#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; \ -} - -/* - * 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. - */ -#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) - +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)); /* * Socket extension mechanism: control block hooks: @@ -318,8 +293,10 @@ struct kextcb }; #define EXT_NULL 0x0 /* STATE: Not in use */ #define sotokextcb(so) (so ? so->so_ext : 0) +#endif /* __APPLE___ */ #ifdef KERNEL + /* * Argument structure for sosetopt et seq. This is in the KERNEL * section because it will never be visible to user code. @@ -335,14 +312,12 @@ struct sockopt { }; #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 @@ -362,19 +337,22 @@ struct sockaddr; struct stat; struct ucred; struct uio; +#ifndef __APPLE +struct knote; +#endif /* * 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_read __P((struct file *fp, struct uio *uio, struct ucred *cred, + int flags, struct proc *p)); +int soo_write __P((struct file *fp, struct uio *uio, struct ucred *cred, + int flags, struct proc *p)); +int soo_close __P((struct file *fp, struct proc *p)); int soo_ioctl __P((struct file *fp, u_long cmd, caddr_t data, struct proc *p)); -int soo_select __P((struct file *fp, int which, struct proc *p)); int soo_stat __P((struct socket *so, struct stat *ub)); - -int soo_close __P((struct file *fp, struct proc *p)); - +int soo_select __P((struct file *fp, int which, void * wql, struct proc *p)); /* * From uipc_socket and friends @@ -429,7 +407,16 @@ struct socket * 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)); + +/* + * XXX; prepare mbuf for (__FreeBSD__ < 3) routines. + * Used primarily in IPSec and IPv6 code. + */ +int soopt_getm __P((struct sockopt *sopt, struct mbuf **mp)); +int soopt_mcopyin __P((struct sockopt *sopt, struct mbuf *m)); +int soopt_mcopyout __P((struct sockopt *sopt, struct mbuf *m)); + +int sopoll __P((struct socket *so, int events, struct ucred *cred, void *wql)); int soreceive __P((struct socket *so, struct sockaddr **paddr, struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp)); @@ -439,12 +426,22 @@ int sosend __P((struct socket *so, struct sockaddr *addr, struct uio *uio, struct mbuf *top, struct mbuf *control, int flags)); int sosetopt __P((struct socket *so, struct sockopt *sopt)); - - int soshutdown __P((struct socket *so, int how)); void sotoxsocket __P((struct socket *so, struct xsocket *xso)); void sowakeup __P((struct socket *so, struct sockbuf *sb)); +#ifndef __APPLE__ +/* accept filter functions */ +int accept_filt_add __P((struct accept_filter *filt)); +int accept_filt_del __P((char *name)); +struct accept_filter * accept_filt_get __P((char *name)); +#ifdef ACCEPT_FILTER_MOD +int accept_filt_generic_mod_event __P((module_t mod, int event, void *data)); +SYSCTL_DECL(_net_inet_accf); +#endif /* ACCEPT_FILTER_MOD */ +#endif /* !defined(__APPLE__) */ #endif /* KERNEL */ +#endif /* __APPLE_API_UNSTABLE */ + #endif /* !_SYS_SOCKETVAR_H_ */