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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #ifndef	_INET_SDP_ITF_H
     27 #define	_INET_SDP_ITF_H
     28 
     29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     30 
     31 #ifdef __cplusplus
     32 extern "C" {
     33 #endif
     34 
     35 /*
     36  * Kernel SDP programming interface.  Note that this interface
     37  * is private to Sun and can be changed without notice.
     38  */
     39 
     40 #ifdef _KERNEL
     41 
     42 /*
     43  * The version number of the SDP kernel interface.  Use it with
     44  * sdp_itf_ver() to verify if the kernel supports the correct
     45  * version of the interface.
     46  *
     47  * NOTE: do not assume backward compatibility of the interface.
     48  * If the return value of sdp_itf_ver() is different from what
     49  * is expected, do not call any of the routines.
     50  */
     51 #define	SDP_ITF_VER	1
     52 
     53 /*
     54  * This struct holds all the upcalls the SDP kernel module will
     55  * invoke for different events.  When calling sdp_create() to create
     56  * a SDP handle, the caller must provide this information.
     57  */
     58 typedef struct sdp_upcalls_s {
     59 	void *	(*su_newconn)(void *parenthandle, void *connind);
     60 	void	(*su_connected)(void *handle);
     61 	void	(*su_disconnected)(void *handle, int error);
     62 	void	(*su_connfailed)(void *handle, int error);
     63 	int	(*su_recv)(void *handle, mblk_t *mp, int flags);
     64 	void	(*su_xmitted)(void *handle, int writeable);
     65 	void	(*su_urgdata)(void *handle);
     66 	void	(*su_ordrel)(void *handle);
     67 } sdp_upcalls_t;
     68 
     69 
     70 /*
     71  * This struct holds various flow control limits the caller of
     72  * sdp_create() should observe when interacting with SDP.
     73  */
     74 typedef struct sdp_sockbuf_limits_s {
     75 	int sbl_rxbuf;
     76 	int sbl_rxlowat;
     77 	int sbl_txbuf;
     78 	int sbl_txlowat;
     79 } sdp_sockbuf_limits_t;
     80 
     81 struct sdp_conn_struct_t;
     82 
     83 /*
     84  * The list of routines the SDP kernel module provides.
     85  */
     86 extern int sdp_bind(struct sdp_conn_struct_t *conn, struct sockaddr *addr,
     87     socklen_t addrlen);
     88 extern void sdp_close(struct sdp_conn_struct_t *conn);
     89 extern int sdp_connect(struct sdp_conn_struct_t *conn,
     90     const struct sockaddr *dst, socklen_t addrlen);
     91 extern struct sdp_conn_struct_t *sdp_create(void *newhandle,
     92     struct sdp_conn_struct_t *parent, int family, int flags,
     93     const sdp_upcalls_t *su, sdp_sockbuf_limits_t *sbl, cred_t *cr,
     94     int *error);
     95 extern int sdp_disconnect(struct sdp_conn_struct_t *conn, int flags);
     96 extern int sdp_shutdown(struct sdp_conn_struct_t *conn, int flag);
     97 extern int sdp_polldata(struct sdp_conn_struct_t *conn, int flag);
     98 extern int sdp_get_opt(struct sdp_conn_struct_t *conn, int level, int opt,
     99     void *opts, socklen_t *optlen);
    100 extern int sdp_getpeername(struct sdp_conn_struct_t *conn,
    101     struct sockaddr *addr, socklen_t *addrlen);
    102 extern int sdp_getsockname(struct sdp_conn_struct_t *conn,
    103     struct sockaddr *addr, socklen_t *addrlen);
    104 extern int sdp_itf_ver(int);
    105 extern int sdp_listen(struct sdp_conn_struct_t *conn, int backlog);
    106 extern int sdp_send(struct sdp_conn_struct_t *conn, struct msghdr *msg,
    107     size_t size, int flags, struct uio *uiop);
    108 extern int sdp_recv(struct sdp_conn_struct_t *conn, struct msghdr *msg,
    109     size_t size, int flags, struct uio *uiop);
    110 extern int sdp_set_opt(struct sdp_conn_struct_t *conn, int level, int opt,
    111     const void *opts, socklen_t optlen);
    112 extern int sdp_ioctl(struct sdp_conn_struct_t *conn, int cmd, int32_t *value,
    113     struct cred *cr);
    114 
    115 
    116 /* Flags for sdp_create() */
    117 #define	SDP_CAN_BLOCK			0x01
    118 
    119 #define	SDP_READ 0x01
    120 #define	SDP_XMIT 0x02
    121 
    122 #endif /* _KERNEL */
    123 
    124 #define	SDP_NODELAY 0x01
    125 
    126 #ifdef __cplusplus
    127 }
    128 #endif
    129 
    130 #endif /* _INET_SDP_ITF_H */
    131