root/sys/rpc/getnetconfig.c
/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
 * Authors: Doug Rabson <dfr@rabson.org>
 * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include "opt_inet6.h"

#include <sys/param.h>
#include <sys/malloc.h>
#include <sys/systm.h>

#include <rpc/types.h>

/*
 * For in-kernel use, we use a simple compiled-in configuration.
 */

static struct netconfig netconfigs[] = {
#ifdef INET6
        {
                .nc_netid =     "udp6",
                .nc_semantics = NC_TPI_CLTS,
                .nc_flag =      NC_VISIBLE,
                .nc_protofmly = "inet6",
                .nc_proto =     "udp",
        },
        {
                .nc_netid =     "tcp6",
                .nc_semantics = NC_TPI_COTS_ORD,
                .nc_flag =      NC_VISIBLE,
                .nc_protofmly = "inet6",
                .nc_proto =     "tcp",
        },
#endif  
        {
                .nc_netid =     "udp",
                .nc_semantics = NC_TPI_CLTS,
                .nc_flag =      NC_VISIBLE,
                .nc_protofmly = "inet",
                .nc_proto =     "udp",
        },
        {
                .nc_netid =     "tcp",
                .nc_semantics = NC_TPI_COTS_ORD,
                .nc_flag =      NC_VISIBLE,
                .nc_protofmly = "inet",
                .nc_proto =     "tcp",
        },
        {
                .nc_netid =     "local",
                .nc_semantics = NC_TPI_COTS_ORD,
                .nc_flag =      0,
                .nc_protofmly = "loopback",
                .nc_proto =     "",
        },
        {
                .nc_netid =     NULL,
        }
};

void *
setnetconfig(void)
{
        struct netconfig **nconfp;

        nconfp = malloc(sizeof(struct netconfig *), M_RPC, M_WAITOK);
        *nconfp = netconfigs;

        return ((void *) nconfp);
}

struct netconfig *
getnetconfig(void *handle)
{
        struct netconfig **nconfp = (struct netconfig **) handle;
        struct netconfig *nconf;

        nconf = *nconfp;
        if (nconf->nc_netid == NULL)
                return (NULL);

        (*nconfp)++;

        return (nconf);
}

struct netconfig *
getnetconfigent(const char *netid)
{
        struct netconfig *nconf;

        for (nconf = netconfigs; nconf->nc_netid; nconf++) {
                if (!strcmp(netid, nconf->nc_netid))
                        return (nconf);
        }

        return (NULL);
}

void
freenetconfigent(struct netconfig *nconf)
{

}

int
endnetconfig(void * handle)
{
        struct netconfig **nconfp = (struct netconfig **) handle;

        free(nconfp, M_RPC);
        return (0);
}