422 lines
10 KiB
C
422 lines
10 KiB
C
/* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */
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/* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF */
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/* UNIX System Laboratories, Inc. */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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#ifndef _SYS_STROPTS_H /* wrapper symbol for kernel use */
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#define _SYS_STROPTS_H /* subject to change without notice */
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/*#ident "@(#)uts-3b2:io/stropts.h 1.8"*/
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#ident "$Revision: 3.20 $"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <standards.h>
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#include <sys/types.h>
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#ifdef _IRIX_LATER
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/*
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* For struct ecb (source compatibility).
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*/
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#include <sys/evecb.h>
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#endif /* _IRIX_LATER */
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#if _KERNEL
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#include <sys/conf.h>
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#endif /* _KERNEL */
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/* Warning - also defined in conf.h - but this is an XPG header */
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#define FMNAMESZ 8
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/*
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* Write options.
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*/
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#define SNDZERO 0x001 /* send a zero length message */
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#define SNDPIPE 0x002 /* send SIGPIPE on write and */
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/* putmsg if sd_werror is set */
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#define SNDHOLD 0x004 /* enable strhold feature */
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/*
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* Read options
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*/
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#define RNORM 0x000 /* read msg norm */
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#define RMSGD 0x001 /* read msg discard */
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#define RMSGN 0x002 /* read msg no discard */
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#if _SGIAPI
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#define RMODEMASK 0x003 /* all above bits */
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#endif /* _SGIAPI */
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/*
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* These next three read options are added for the sake of
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* user-level transparency. RPROTDAT will cause the stream head
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* to treat the contents of M_PROTO and M_PCPROTO message blocks
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* as data. RPROTDIS will prevent the stream head from failing
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* a read with EBADMSG if an M_PROTO or M_PCPROTO message is on
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* the front of the stream head read queue. Rather, the protocol
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* blocks will be silently discarded and the data associated with
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* the message (in linked M_DATA blocks), if any, will be delivered
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* to the user. RPROTNORM sets the default behavior, where read
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* will fail with EBADMSG if an M_PROTO or M_PCPROTO are at the
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* stream head.
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*/
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#define RPROTDAT 0x004 /* read protocol messages as data */
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#define RPROTDIS 0x008 /* discard protocol messages, but */
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/* read data portion */
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#define RPROTNORM 0x010
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#if _SGIAPI
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#define RPROTMASK 0x01c /* all RPROT bits */
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#endif /* _SGIAPI */
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/*
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* Flush options
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*/
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#define FLUSHR 0x01L /* flush read queue */
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#define FLUSHW 0x02L /* flush write queue */
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#define FLUSHRW 0x03L /* flush both queues */
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#define FLUSHBAND 0x04L /* flush only band specified */
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/* in next byte */
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/*
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* Events for which to be sent SIGPOLL signal and for which events
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* can be posted by the I_SETEV ioctl.
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*/
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#define S_INPUT 0x0001 /* any msg but hipri on read Q */
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#define S_HIPRI 0x0002 /* high priority msg on read Q */
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#define S_OUTPUT 0x0004 /* write Q no longer full */
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#define S_MSG 0x0008 /* signal msg at front of read Q */
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#define S_ERROR 0x0010 /* error msg arrived at stream head */
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#define S_HANGUP 0x0020 /* hangup msg arrived at stream head */
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#define S_RDNORM 0x0040 /* normal msg on read Q */
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#define S_WRNORM S_OUTPUT
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#define S_RDBAND 0x0080 /* out of band msg on read Q */
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#define S_WRBAND 0x0100 /* can write out of band */
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#define S_BANDURG 0x0200 /* modifier to S_RDBAND, to generate */
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/* SIGURG instead of SIGPOLL */
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/*
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* Flags for getmsg() and putmsg() syscall arguments.
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* "RS" stands for recv/send. The system calls were originally called
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* recv() and send(), but were renamed to avoid confusion with the BSD
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* calls of the same name. A value of zero will cause getmsg() to return
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* the first message on the stream head read queue and putmsg() to send
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* a normal priority message.
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*/
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#define RS_HIPRI 0x01 /* send/recv high priority message */
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/*
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* Flags for getpmsg() and putpmsg() syscall arguments.
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*/
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/*
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* These are settable by the user and will be set on return
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* to indicate the priority of message received.
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*/
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#define MSG_HIPRI 0x01 /* send/recv high priority message */
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#define MSG_ANY 0x02 /* recv any messages */
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#define MSG_BAND 0x04 /* recv messages from specified band */
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/*
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* Flags returned as value of getmsg() and getpmsg() syscall.
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*/
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#define MORECTL 1 /* more ctl info is left in message */
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#define MOREDATA 2 /* more data is left in message */
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/*
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* Define to indicate that all multiplexors beneath a stream should
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* be unlinked.
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*/
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#define MUXID_ALL (-1)
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/*
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* Flag definitions for the I_ATMARK ioctl.
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*/
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#define ANYMARK 0x01
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#define LASTMARK 0x02
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/*
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* Stream Ioctl defines
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*/
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#define STR ('S'<<8)
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/* (STR|000) in use */
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#define I_NREAD (STR|01)
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#define I_PUSH (STR|02)
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#define I_POP (STR|03)
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#define I_LOOK (STR|04)
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#define I_FLUSH (STR|05)
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#define I_SRDOPT (STR|06)
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#define I_GRDOPT (STR|07)
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#define I_STR (STR|010)
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#define I_SETSIG (STR|011)
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#define I_GETSIG (STR|012)
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#define I_FIND (STR|013)
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#define I_LINK (STR|014)
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#define I_UNLINK (STR|015)
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/* (STR|016) in use */
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#define I_PEEK (STR|017)
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#define I_FDINSERT (STR|020)
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#define I_SENDFD (STR|021)
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#if defined(_KERNEL)
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#define I_RECVFD (STR|022)
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#define I_E_RECVFD (STR|016)
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#else
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#define I_RECVFD (STR|016) /* maps to kernel I_E_RECVFD */
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#endif /* defined(_KERNEL) */
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#define I_SWROPT (STR|023)
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#define I_GWROPT (STR|024)
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#define I_LIST (STR|025)
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#define I_PLINK (STR|026)
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#define I_PUNLINK (STR|027)
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#ifdef GEM
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#define I_SETEV (STR|030)
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#define I_GETEV (STR|031)
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#define I_STREV (STR|032)
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#define I_UNSTREV (STR|033)
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#endif /* GEM */
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#define I_FLUSHBAND (STR|034)
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#define I_CKBAND (STR|035)
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#define I_GETBAND (STR|036)
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#define I_ATMARK (STR|037)
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#define I_SETCLTIME (STR|040)
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#define I_GETCLTIME (STR|041)
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#define I_CANPUT (STR|042)
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#define I_S_RECVFD (STR|043)
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#ifdef CKPT
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#define I_NREADN (STR|044)
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#define I_PEEKN (STR|045)
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#define I_FIFOENDS (STR|046)
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#endif /* CKPT */
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/*
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* User level ioctl format for ioctls that go downstream (I_STR)
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*/
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struct strioctl {
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int ic_cmd; /* command */
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int ic_timout; /* timeout value */
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int ic_len; /* length of data */
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char *ic_dp; /* pointer to data */
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};
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#if _SGIAPI
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/*
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* Value for timeouts (ioctl, select) that denotes infinity
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*/
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#define INFTIM -1
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#endif /* _SGIAPI */
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/*
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* Stream buffer structure for putmsg and getmsg system calls
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*/
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struct strbuf {
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int maxlen; /* no. of bytes in buffer */
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int len; /* no. of bytes returned */
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char *buf; /* pointer to data */
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};
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/*
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* Stream I_PEEK ioctl format
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*/
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struct strpeek {
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struct strbuf ctlbuf;
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struct strbuf databuf;
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long flags;
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};
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/*
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* Stream I_FDINSERT ioctl format
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*/
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/*
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* Users running 32-bit binaries on 64-bit kernels need to ensure that the
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* definition of the structure used in conjunction with I_FDINSERT has the
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* pointer field 64-bit aligned and 8 bytes long.
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* For backward compatibility, the kernel will attempt to fix structures
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* in place when processing I_FDINSERT in the stream head. For an example,
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* look at the definition of the T_conn_res structure in sys/tihdr.h, which
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* has padding inserted to align the queue pointer. The structure that the
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* user sees in a 32-bit environment will be different than in a 64-bit
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* environment.
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*/
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struct strfdinsert {
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struct strbuf ctlbuf;
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struct strbuf databuf;
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long flags;
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int fildes;
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int offset;
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};
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#ifdef CKPT
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/*
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* Stream I_PEEKN ioctl format
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*/
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struct strpeekn {
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struct strbuf ctlbuf;
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struct strbuf databuf;
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long flags;
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unsigned int msgnum;
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};
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/*
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* Stream I_NREADN ioctl format
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*/
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struct strreadn {
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unsigned int msgnum;
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unsigned short flags;
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int datasz;
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int ctlsz;
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};
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#endif /* CKPT */
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/*
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* Receive file descriptor structure
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*/
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#if defined(_KERNEL)
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struct o_strrecvfd { /* SVR3 syscall structure */
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union {
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struct vfile *fp;
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int fd;
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} f;
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o_uid_t uid; /* always ushort */
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o_gid_t gid;
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char fill[8];
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};
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/* Although EFT is enabled in the kernel we kept the following definition
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** to support an EFT application on a 4.0 non-EFT system.
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*/
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struct e_strrecvfd { /* SVR4 expanded syscall interface structure */
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union {
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struct vfile *fp;
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int fd;
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} f;
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uid_t uid; /* always long */
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gid_t gid;
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char fill[8];
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};
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struct strrecvfd { /* Kernel structure dependent on EFT definition */
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union {
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struct vfile *fp;
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int fd;
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} f;
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uid_t uid;
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gid_t gid;
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char fill[8];
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};
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#else /* !_KERNEL */
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struct strrecvfd {
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int fd;
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uid_t uid;
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gid_t gid;
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char __fill[8];
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};
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#endif /* defined(_KERNEL) */
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#if _SGIAPI
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/*
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* REMIND - I moved this here since secsys.h was purged.
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*/
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struct sub_attr {
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char kernel_info[1];
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};
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struct s_strrecvfd {
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int fd;
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uid_t uid;
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gid_t gid;
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struct sub_attr s_attrs;
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};
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#endif /* _SGIAPI */
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/*
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* For I_LIST ioctl.
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*/
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struct str_mlist {
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char l_name[FMNAMESZ+1];
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};
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struct str_list {
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int sl_nmods;
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struct str_mlist *sl_modlist;
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};
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/*
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* For I_STREV and I_UNSTREV ioctls: requesting
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* ET_DRIVER-type events from STREAMS modules and
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* drivers.
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*/
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#ifdef GEM
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struct str_event {
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long ste_event; /* the event (module-specific) */
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ecb_t ste_ecb; /* event control block */
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long ste_evflags; /* same as ev_flags */
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struct strbuf ste_buf; /* module-specific data */
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};
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/*
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* For I_SETEV ioctls: requesting ET_STREAM-type
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* events from the stream head.
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*/
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typedef struct str_sev {
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int se_mask; /* generate events for above S_XXX conditions */
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ecb_t se_ecb; /* the event control block */
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unchar se_band; /* band requested (ignored if does not apply) */
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} str_sev_t;
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/*
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* For I_GETEV ioctls: retrieve the events for
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* which stream head is generating events.
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*/
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typedef struct str_gev {
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int ge_flags; /* see below */
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str_sev_t *ge_sep; /* ptr to array of str_sev structs */
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int ge_ses; /* number of elements in ge_sep array */
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} str_gev_t;
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/*
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* Flags for ge_flags field.
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*/
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#define GEF_PROC 0x0001 /* Get information only about */
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/* this process' requests. */
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/* Otherwise, all I_SETEV's for */
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/* the stream head will be */
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/* returned. */
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#define GEF_MORE 0x0002 /* Set on return if there were */
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/* more I_SETEVs to return than */
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/* would fit into the ge_sep */
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/* array the caller provided. */
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#endif /* GEM */
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/*
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* For I_FLUSHBAND ioctl. Describes the priority
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* band for which the operation applies.
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*/
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struct bandinfo {
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unsigned char bi_pri;
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int bi_flag;
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};
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_STROPTS_H */
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