/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (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 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _RDS_H
#define _RDS_H

#ifdef  __cplusplus
extern "C" {
#endif

#include <sys/types.h>
#include <sys/t_lock.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/vfs.h>
#include <sys/vnode.h>
#include <sys/debug.h>
#include <sys/errno.h>
#include <sys/stropts.h>
#include <sys/cmn_err.h>
#include <sys/sysmacros.h>

#include <sys/project.h>
#include <sys/tihdr.h>
#include <sys/strsubr.h>

#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/strsun.h>

#include <inet/common.h>
#include <inet/ip.h>
#include <inet/optcom.h>

#include <sys/sunldi.h>
#include <sys/dlpi.h>

#include <inet/ip_ire.h>

#undef  dprint
#ifdef DEBUG
extern int rdsdebug;
#define dprint(level, args)     { if (rdsdebug > (level)) printf args; }
#else
#define dprint(level, args) {}
#endif

typedef struct rds_s {
        kmutex_t        rds_lock;       /* protects rds_refcnt */
        int             rds_refcnt;
        kcondvar_t      rds_refcv;
        uint32_t        rds_state;      /* TPI state */
        uint32_t        rds_flags;
        sa_family_t     rds_family;     /* Family from socket() call */
        cred_t          *rds_cred;
        in_port_t       rds_port;       /* Port bound to this stream */
        ipaddr_t        rds_src;        /* Source address of this stream */
        void            *rds_ulpd;      /* queue to send message on */
        struct rds_s    *rds_bind_hash; /* Bind hash chain */
        struct rds_s    **rds_ptpbhn;   /* Ptr to previous bind hash next. */
        ulong_t         rds_port_quota; /* Port quota */
        zoneid_t        rds_zoneid;
} rds_t;

#define RDS_CLOSING     0x1

#define RDS_INCR_REF_CNT(rds)  {        \
        mutex_enter(&rds->rds_lock);    \
        rds->rds_refcnt++;              \
        ASSERT(rds->rds_refcnt != 0);   \
        mutex_exit(&rds->rds_lock);     \
}

#define RDS_DEC_REF_CNT(rds)  {                         \
        mutex_enter(&rds->rds_lock);                    \
        ASSERT(rds->rds_refcnt > 0);                    \
        rds->rds_refcnt--;                              \
        if (rds->rds_refcnt == 1)                       \
                cv_broadcast(&(rds)->rds_refcv);        \
        if (rds->rds_refcnt == 0) {                     \
                rds_free(rds);                          \
        } else {                                        \
                mutex_exit(&rds->rds_lock);             \
        }                                               \
}


#define RDS_MATCH(rdsp, lport, laddr)           \
        (((rdsp)->rds_port == lport) &&         \
        ((rdsp)->rds_src == laddr))

/* RDS bind fanout hash structure. */
typedef struct rds_bind_fanout_s {
        rds_t *rds_bf_rds;
        kmutex_t rds_bf_lock;
#if defined(_LP64)
        char    bf_pad[48];
#else
        char    bf_pad[56];
#endif
}rds_bf_t;

extern ldi_ident_t rds_li;

#define RDS_BIND_FANOUT_SIZE    512
#define RDS_BIND_HASH(lport) \
        ((ntohs((uint16_t)lport)) & (rds_bind_fanout_size - 1))

#define AF_INET_OFFLOAD 30

extern  uint_t rds_bind_fanout_size;
extern  rds_bf_t *rds_bind_fanout;

extern optdb_obj_t rds_opt_obj;

extern void rds_hash_init();

extern  void rds_free(rds_t *rds);
extern rds_t *rds_create(void *rds_ulpd, cred_t *credp);

extern void rds_bind_hash_remove(rds_t *rds, boolean_t);
extern void rds_bind_hash_insert(rds_bf_t *, rds_t *);
extern rds_t *rds_fanout(ipaddr_t, ipaddr_t, in_port_t, in_port_t, zoneid_t);
extern void rds_add_new_msg(mblk_t *mp, ipaddr_t, ipaddr_t, in_port_t,
    in_port_t);
extern boolean_t rds_verify_bind_address(ipaddr_t addr);
extern boolean_t rds_islocal(ipaddr_t addr);
extern boolean_t rds_if_lookup_by_name(char *if_name);
extern boolean_t rds_if_lookup_by_addr(ipaddr_t addr);


extern void rds_init();
extern void rds_fini();


#ifdef  __cplusplus
}
#endif

#endif  /* _RDS_H */