OpenSolaris_b135/head/xti.h
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1996 Sun Microsystems, Inc. */
/* All Rights Reserved */
#ifndef _XTI_H
#define _XTI_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
/*
* The following include file has declarations needed by both the kernel
* level transport providers and the user level library. This file includes
* it to expose its namespaces to XTI user level interface.
*/
#include <sys/tpicommon.h>
/*
* Include XTI interface level options management declarations
*/
#include <sys/xti_xtiopt.h>
#if !defined(_XPG5)
/*
* Include declarations related to OSI transport and management data
* structures, and the Internet Protocol Suite.
* Note: The older Unix95/XNS4 XTI spec required these to be
* exposed through the generic interface header.
*/
#include <sys/xti_osi.h>
#include <sys/xti_inet.h>
#endif /* !defined(_XPG5) */
#ifdef __cplusplus
extern "C" {
#endif
/*
* The following t_errno error codes are included in the namespace by
* inclusion of <sys/tpicommon.h> above. The english language error strings
* associated with the error values are reproduced here for easy reference.
*
* Error Value Error message string
* ---- ----- --------------------
* TBADADDR 1 Incorrect address format
* TBADOPT 2 Incorrect options format
* TACCES 3 Illegal permissions
* TBADF 4 Illegal file descriptor
* TNOADDR 5 Couldn't allocate address
* TOUTSTATE 6 Routine will place interface out of state
* TBADSEQ 7 Illegal called/calling sequence number
* TSYSERR 8 System error
* TLOOK 9 An event requires attention
* TBADDATA 10 Illegal amount of data
* TBUFOVFLW 11 Buffer not large enough
* TFLOW 12 Can't send message - (blocked)
* TNODATA 13 No message currently available
* TNODIS 14 Disconnect message not found
* TNOUDERR 15 Unitdata error message not found
* TBADFLAG 16 Incorrect flags specified
* TNOREL 17 Orderly release message not found
* TNOTSUPPORT 18 Primitive not supported by provider
* TSTATECHNG 19 State is in process of changing
* TNOSTRUCTYPE 20 Unsupported structure type requested
* TBADNAME 21 Invalid transport provider name
* TBADQLEN 22 Listener queue length limit is zero
* TADDRBUSY 23 Transport address is in use
* TINDOUT 24 Outstanding connection indications
* TPROVMISMATCH 25 Listener-acceptor transport provider mismatch
* TRESQLEN 26 Connection acceptor has listen queue length
* limit greater than zero
* TRESADDR 27 Connection acceptor-listener addresses not
* same but required by transport
* TQFULL 28 Incoming connection queue is full
* TPROTO 29 Protocol error on transport primitive
*
*/
/*
* The following are the events returned by t_look
*/
#define T_LISTEN 0x0001 /* connection indication received */
#define T_CONNECT 0x0002 /* connect confirmation received */
#define T_DATA 0x0004 /* normal data received */
#define T_EXDATA 0x0008 /* expedited data received */
#define T_DISCONNECT 0x0010 /* disconnect received */
#define T_UDERR 0x0040 /* data gram error indication */
#define T_ORDREL 0x0080 /* orderly release indication */
#define T_GODATA 0x0100 /* sending normal data is again possible */
#define T_GOEXDATA 0x0200 /* sending expedited data is again possible */
/*
* Flags for data primitives
*/
#define T_MORE 0x001 /* more data */
#define T_EXPEDITED 0x002 /* expedited data */
#define T_PUSH 0x004 /* send data immediately */
/*
* XTI error return
*/
#if defined(_REENTRANT) || defined(_TS_ERRNO)
extern int *__t_errno();
#define t_errno (*(__t_errno()))
#else
extern int t_errno;
#endif /* defined(_REENTRANT) || defined(_TS_ERRNO) */
/*
* The following are for t_sysconf()
*/
#ifndef T_IOV_MAX
#define T_IOV_MAX 16 /* Maximum number of scatter/gather buffers */
#endif /* Should be <= IOV_MAX */
#ifndef _SC_T_IOV_MAX
#define _SC_T_IOV_MAX 79 /* Should be same in <unistd.h> for use by */
#endif /* sysconf() */
struct t_iovec {
void *iov_base;
size_t iov_len;
};
/*
* Translate source level interface to binary entry point names.
*
* Note: This is done to maintain co-existence of TLI and XTI
* interfaces which have identical names for most functions but
* different semantics. The XTI names are moved to the different
* prefix space in the ABI. The #ifdef is required to make use of
* of the compiler feature to allow redefinition of external names
* where available. Otherwise a simple #define is used when this
* header is used with other compilers.
* The use of #define also has the effect of renaming all names (not
* just function names) to the new name. The TLI function names
* (e.g. t_bind) can have identical names for structure names
* (e.g struct t_bind). Therefore, this redefinition of names needs
* to be before all structure and function name declarations in the header.
*/
#ifdef __PRAGMA_REDEFINE_EXTNAME
#if defined(_XOPEN_SOURCE) && !defined(_XPG5)
#pragma redefine_extname t_accept _xti_accept
#else
#pragma redefine_extname t_accept _xti_xns5_accept
#endif
#pragma redefine_extname t_alloc _xti_alloc
#pragma redefine_extname t_bind _xti_bind
#pragma redefine_extname t_close _xti_close
#pragma redefine_extname t_connect _xti_connect
#pragma redefine_extname t_error _xti_error
#pragma redefine_extname t_free _xti_free
#pragma redefine_extname t_getinfo _xti_getinfo
#pragma redefine_extname t_getstate _xti_getstate
#pragma redefine_extname t_getprotaddr _xti_getprotaddr
#pragma redefine_extname t_listen _xti_listen
#pragma redefine_extname t_look _xti_look
#pragma redefine_extname t_open _xti_open
#pragma redefine_extname t_optmgmt _xti_optmgmt
#pragma redefine_extname t_rcv _xti_rcv
#pragma redefine_extname t_rcvconnect _xti_rcvconnect
#pragma redefine_extname t_rcvdis _xti_rcvdis
#pragma redefine_extname t_rcvrel _xti_rcvrel
#pragma redefine_extname t_rcvreldata _xti_rcvreldata
#pragma redefine_extname t_rcvudata _xti_rcvudata
#pragma redefine_extname t_rcvuderr _xti_rcvuderr
#pragma redefine_extname t_rcvv _xti_rcvv
#pragma redefine_extname t_rcvvudata _xti_rcvvudata
#if defined(_XOPEN_SOURCE) && !defined(_XPG5)
#pragma redefine_extname t_snd _xti_snd
#else
#pragma redefine_extname t_snd _xti_xns5_snd
#endif
#pragma redefine_extname t_snddis _xti_snddis
#pragma redefine_extname t_sndrel _xti_sndrel
#pragma redefine_extname t_sndreldata _xti_sndreldata
#pragma redefine_extname t_sndudata _xti_sndudata
#pragma redefine_extname t_sndv _xti_sndv
#pragma redefine_extname t_sndvudata _xti_sndvudata
#pragma redefine_extname t_strerror _xti_strerror
#pragma redefine_extname t_sync _xti_sync
#pragma redefine_extname t_sysconf _xti_sysconf
#pragma redefine_extname t_unbind _xti_unbind
#else /* __PRAGMA_REDEFINE_EXTNAME */
#if defined(_XOPEN_SOURCE) && !defined(_XPG5)
#define t_accept _xti_accept
#else
#define t_accept _xti_xns5_accept
#endif
#define t_alloc _xti_alloc
#define t_bind _xti_bind
#define t_close _xti_close
#define t_connect _xti_connect
#define t_error _xti_error
#define t_free _xti_free
#define t_getinfo _xti_getinfo
#define t_getstate _xti_getstate
#define t_getprotaddr _xti_getprotaddr
#define t_listen _xti_listen
#define t_look _xti_look
#define t_open _xti_open
#define t_optmgmt _xti_optmgmt
#define t_rcv _xti_rcv
#define t_rcvconnect _xti_rcvconnect
#define t_rcvdis _xti_rcvdis
#define t_rcvrel _xti_rcvrel
#define t_rcvreldata _xti_rcvreldata
#define t_rcvudata _xti_rcvudata
#define t_rcvuderr _xti_rcvuderr
#define t_rcvv _xti_rcvv
#define t_rcvvudata _xti_rcvvudata
#if defined(_XOPEN_SOURCE) && !defined(_XPG5)
#define t_snd _xti_snd
#else
#define t_snd _xti_xns5_snd
#endif
#define t_snddis _xti_snddis
#define t_sndrel _xti_sndrel
#define t_sndreldata _xti_sndreldata
#define t_sndudata _xti_sndudata
#define t_sndv _xti_sndv
#define t_sndvudata _xti_sndvudata
#define t_strerror _xti_strerror
#define t_sync _xti_sync
#define t_sysconf _xti_sysconf
#define t_unbind _xti_unbind
#endif /* __PRAGMA_REDEFINE_EXTNAME */
/*
* protocol specific service limits
*/
struct t_info {
t_scalar_t addr; /* max size of protocol address */
t_scalar_t options; /* max size of protocol options */
t_scalar_t tsdu; /* max size of max transport service */
/* data unit */
t_scalar_t etsdu; /* max size of max expedited tsdu */
t_scalar_t connect; /* max data for connection primitives */
t_scalar_t discon; /* max data for disconnect primitives */
t_scalar_t servtype; /* provider service type */
t_scalar_t flags; /* other info about transport providers */
};
/*
* Flags definitions for the t_info structure
*/
#define T_SENDZERO 0x001 /* supports 0-length TSDUs */
#define T_ORDRELDATA 0x002 /* supports orderly release data */
/*
* netbuf structure
*/
struct netbuf {
unsigned int maxlen;
unsigned int len;
#if defined(_XPG5)
void *buf;
#else
char *buf;
#endif
};
/*
* t_opthdr structure
*/
struct t_opthdr {
t_uscalar_t len; /* total length of option */
t_uscalar_t level; /* protocol level */
t_uscalar_t name; /* option name */
t_uscalar_t status; /* status value */
/* followed by option value */
};
/*
* t_bind - format of the addres and options arguments of bind
*/
struct t_bind {
struct netbuf addr;
unsigned int qlen;
};
/*
* options management
*/
struct t_optmgmt {
struct netbuf opt;
t_scalar_t flags;
};
/*
* disconnect structure
*/
struct t_discon {
struct netbuf udata; /* user data */
int reason; /* reason code */
int sequence; /* sequence number */
};
/*
* call structure
*/
struct t_call {
struct netbuf addr; /* address */
struct netbuf opt; /* options */
struct netbuf udata; /* user data */
int sequence; /* sequence number */
};
/*
* data gram structure
*/
struct t_unitdata {
struct netbuf addr; /* address */
struct netbuf opt; /* options */
struct netbuf udata; /* user data */
};
/*
* unitdata error
*/
struct t_uderr {
struct netbuf addr; /* address */
struct netbuf opt; /* options */
t_scalar_t error; /* error code */
};
/*
* The following are structure types used when dynamically
* allocating the above structures via t_structalloc().
*/
#define T_BIND 1 /* struct t_bind */
#define T_OPTMGMT 2 /* struct t_optmgmt */
#define T_CALL 3 /* struct t_call */
#define T_DIS 4 /* struct t_discon */
#define T_UNITDATA 5 /* struct t_unitdata */
#define T_UDERROR 6 /* struct t_uderr */
#define T_INFO 7 /* struct t_info */
/*
* The following bits specify which fields of the above
* structures should be allocated by t_alloc().
*/
#define T_ADDR 0x01 /* address */
#define T_OPT 0x02 /* options */
#define T_UDATA 0x04 /* user data */
#define T_ALL 0xffff /* all the above fields */
/*
* the following are the states for the user
*/
#define T_UNINIT 0 /* uninitialized */
#define T_UNBND 1 /* unbound */
#define T_IDLE 2 /* idle */
#define T_OUTCON 3 /* outgoing connection pending */
#define T_INCON 4 /* incoming connection pending */
#define T_DATAXFER 5 /* data transfer */
#define T_OUTREL 6 /* outgoing release pending */
#define T_INREL 7 /* incoming release pending */
#define T_UNUSED -1
#define T_NULL 0
/*
* Allegedly general purpose constant. Used with (and needs to be bitwise
* distinct from) T_NOPROTECT, T_PASSIVEPROTECT and T_ACTIVEPROTECT
* which are OSI specific constants but part of this header (defined
* in <xti_osi.h> which is included in this header for historical
* XTI specification reasons)
*/
#define T_ABSREQ 0x8000
/*
* General definitions for option management
*
* Multiple variable length options may be packed into a single option buffer.
* Each option consists of a fixed length header followed by variable length
* data. The header and data will have to be aligned at appropriate
* boundaries. The following macros are used to manipulate the options.
*
* Helper Macros: Macros beginning with a "_T" prefix are helper macros.
* They are private, not meant for public use and may
* change without notice. Users should use the standard
* XTI macros beginning with "T_" prefix
*/
#define _T_OPT_HALIGN_SZ (sizeof (t_scalar_t)) /* Hdr Alignment size */
#define _T_OPT_DALIGN_SZ (sizeof (int32_t)) /* Data Alignment size */
#define _T_OPTHDR_SZ (sizeof (struct t_opthdr))
/* Align 'x' to the next 'asize' alignment boundary */
#define _T_OPT_ALIGN(x, asize) \
(((uintptr_t)(x) + ((asize) - 1L)) & ~((asize) - 1L))
/* Align 'x' to the next header alignment boundary */
#define _T_OPTHDR_ALIGN(x) \
(_T_OPT_ALIGN((x), _T_OPT_HALIGN_SZ))
/* Align 'x' to the next data alignment boundary */
#define _T_OPTDATA_ALIGN(x) \
(_T_OPT_ALIGN((x), _T_OPT_DALIGN_SZ))
/*
* struct t_opthdr *T_OPT_FIRSTHDR(struct netbuf *nbp):
* Get aligned start of first option header
*
* unsigned char *T_OPT_DATA(struct t_opthdr *tohp):
* Get aligned start of data part after option header
*
* struct t_opthdr *T_OPT_NEXTHDR(struct netbuf *nbp, struct t_opthdr *tohp):
* Skip to next option header
*/
#define T_OPT_FIRSTHDR(nbp) \
((nbp)->len >= _T_OPTHDR_SZ ? (struct t_opthdr *)(nbp)->buf : \
(struct t_opthdr *)0)
#define T_OPT_DATA(tohp) \
((unsigned char *)_T_OPTDATA_ALIGN((char *)(tohp) + _T_OPTHDR_SZ))
#define _T_NEXTHDR(pbuf, buflen, popt) \
(((char *)_T_OPTHDR_ALIGN((char *)(popt) + (popt)->len) + \
_T_OPTHDR_SZ <= ((char *)(pbuf) + (buflen))) ? \
(struct t_opthdr *)((char *)_T_OPTHDR_ALIGN((char *)(popt) + \
(popt)->len)) : (struct t_opthdr *)0)
#define T_OPT_NEXTHDR(nbp, tohp) (_T_NEXTHDR((nbp)->buf, (nbp)->len, (tohp)))
#if !defined(_XPG5)
/*
* The macros below are meant for older applications for compatibility.
* New applications should use the T_OPT_* macros, obviating the need
* to explicitly use the T_ALIGN macro
*
* struct t_opthdr *OPT_NEXTHDR(char *pbuf, unsigned int buflen,
* struct t_opthdr *popt):
* Skip to next option header
*/
#define T_ALIGN(p) (((uintptr_t)(p) + (sizeof (t_scalar_t) - 1))\
& ~(sizeof (t_scalar_t) - 1))
#define OPT_NEXTHDR(pbuf, buflen, popt) (_T_NEXTHDR((pbuf), (buflen), (popt)))
#endif
/*
* XTI LIBRARY FUNCTIONS
*/
#if defined(__STDC__)
#if defined(_XOPEN_SOURCE) && !defined(_XPG5)
extern int t_accept(int, int, struct t_call *);
extern char *t_alloc(int, int, int);
extern int t_bind(int, struct t_bind *, struct t_bind *);
extern int t_connect(int, struct t_call *, struct t_call *);
extern int t_error(char *);
extern int t_free(char *, int);
extern int t_open(char *, int, struct t_info *);
extern int t_optmgmt(int, struct t_optmgmt *, struct t_optmgmt *);
extern int t_rcv(int, char *, unsigned int, int *);
extern int t_snd(int, char *, unsigned int, int);
extern int t_snddis(int, struct t_call *);
extern int t_sndudata(int, struct t_unitdata *);
extern char *t_strerror(int);
#else
extern int t_accept(int, int, const struct t_call *);
extern void *t_alloc(int, int, int);
extern int t_bind(int, const struct t_bind *, struct t_bind *);
extern int t_connect(int, const struct t_call *, struct t_call *);
extern int t_error(const char *);
extern int t_free(void *, int);
extern int t_open(const char *, int, struct t_info *);
extern int t_optmgmt(int, const struct t_optmgmt *, struct t_optmgmt *);
extern int t_rcv(int, void *, unsigned int, int *);
extern int t_snd(int, void *, unsigned int, int);
extern int t_snddis(int, const struct t_call *);
extern int t_sndudata(int, const struct t_unitdata *);
extern const char *t_strerror(int);
#endif
extern int t_close(int);
extern int t_getinfo(int, struct t_info *);
extern int t_getstate(int);
extern int t_getprotaddr(int, struct t_bind *, struct t_bind *);
extern int t_listen(int, struct t_call *);
extern int t_look(int);
extern int t_rcvconnect(int, struct t_call *);
extern int t_rcvdis(int, struct t_discon *);
extern int t_rcvrel(int);
extern int t_rcvreldata(int, struct t_discon *);
extern int t_rcvudata(int, struct t_unitdata *, int *);
extern int t_rcvuderr(int, struct t_uderr *);
extern int t_rcvv(int, struct t_iovec *, unsigned int, int *);
extern int t_rcvvudata(int, struct t_unitdata *, struct t_iovec *,
unsigned int, int *);
extern int t_sndrel(int);
extern int t_sndreldata(int, struct t_discon *);
extern int t_sndv(int, const struct t_iovec *, unsigned int, int);
extern int t_sndvudata(int, struct t_unitdata *, struct t_iovec *,
unsigned int);
extern int t_sync(int);
extern int t_sysconf(int);
extern int t_unbind(int);
#endif /* __STDC__ */
#ifdef __cplusplus
}
#endif
#endif /* _XTI_H */