root/usr/src/uts/common/inet/sockmods/sockmod_rds.c
/*
 * 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 (c) 2010, Oracle and/or its affiliates. All rights reserved.
 */

#include <sys/types.h>
#include <sys/conf.h>
#include <sys/modctl.h>
#include <sys/sunldi.h>
#include <inet/common.h>
#include <sys/strsubr.h>
#include <sys/socketvar.h>

extern sock_lower_handle_t rdsv3_create(int, int, int, sock_downcalls_t **,
    uint_t *, int *, int, cred_t *);

#define INET_NAME       "sockrds"
#define INET_DEVMINOR   0
#define INET_MODMTFLAGS D_MP
#define INET_SOCKDESC   "RDSv3 socket module"
#define INET_SOCK_PROTO_CREATE_FUNC     (*rdsv3_create)

#include "../inetddi.c"

ldi_ident_t     sockrds_li;
ldi_handle_t    rdsv3_transport_handle = NULL;

#define RDSV3_DEVICE_NAME       "/devices/ib/rdsv3@0:rdsv3"

int
_init(void)
{
        int     ret;

        ret = ldi_ident_from_mod(&modlinkage, &sockrds_li);
        if (ret != 0) {
                sockrds_li = NULL;
                goto done;
        }

        ret = ldi_open_by_name(RDSV3_DEVICE_NAME, FREAD | FWRITE, kcred,
            &rdsv3_transport_handle, sockrds_li);
        if (ret != 0) {
                ldi_ident_release(sockrds_li);
                sockrds_li = NULL;
                rdsv3_transport_handle = NULL;
                goto done;
        }

        ret = mod_install(&modlinkage);
        if (ret != 0) {
                (void) ldi_close(rdsv3_transport_handle, FNDELAY, kcred);
                ldi_ident_release(sockrds_li);
                sockrds_li = NULL;
                rdsv3_transport_handle = NULL;
        }

done:
        return (ret);
}

int
_fini(void)
{
        int ret;

        ret = mod_remove(&modlinkage);
        if (ret != 0) {
                return (ret);
        }

        if (rdsv3_transport_handle != NULL) {
                (void) ldi_close(rdsv3_transport_handle, FNDELAY, kcred);
                rdsv3_transport_handle = NULL;
        }

        if (sockrds_li != NULL)
                ldi_ident_release(sockrds_li);

        return (0);
}

int
_info(struct modinfo *modinfop)
{
        return (mod_info(&modlinkage, modinfop));
}