lib/common/load_pool.c

/*
 * Copyright (C) 2002 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * $Id: load_pool.c,v 1.14.2.2 2005/02/01 02:44:06 darrenr Exp $
 *
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 *
 * Copyright (c) 2014, Joyent, Inc.  All rights reserved.
 */

#include <fcntl.h>
#include <sys/ioctl.h>
#include "ipf.h"
#include "netinet/ip_lookup.h"
#include "netinet/ip_pool.h"
#include "ipfzone.h"

static int poolfd = -1;


int load_pool(plp, iocfunc)
ip_pool_t *plp;
ioctlfunc_t iocfunc;
{
    iplookupop_t op;
    ip_pool_node_t *a;
    ip_pool_t pool;

    if ((poolfd == -1) && ((opts & OPT_DONOTHING) == 0))
        poolfd = open(IPLOOKUP_NAME, O_RDWR);
    if ((poolfd == -1) && ((opts & OPT_DONOTHING) == 0))
        return -1;
    if (setzone(poolfd) != 0) {
        close(poolfd);
        return -1;
    }

    op.iplo_unit = plp->ipo_unit;
    op.iplo_type = IPLT_POOL;
    op.iplo_arg = 0;
    strncpy(op.iplo_name, plp->ipo_name, sizeof(op.iplo_name));
    op.iplo_size = sizeof(pool);
    op.iplo_struct = &pool;
    bzero((char *)&pool, sizeof(pool));
    strncpy(pool.ipo_name, plp->ipo_name, sizeof(pool.ipo_name));
    if (*plp->ipo_name == '\0')
        op.iplo_arg |= IPOOL_ANON;

    if ((opts & OPT_REMOVE) == 0) {
        if ((*iocfunc)(poolfd, SIOCLOOKUPADDTABLE, &op))
            if ((opts & OPT_DONOTHING) == 0) {
                perror("load_pool:SIOCLOOKUPADDTABLE");
                return -1;
            }
    }

    if ((opts & OPT_VERBOSE) != 0) {
        pool.ipo_list = plp->ipo_list;
        printpool(&pool, bcopywrap, pool.ipo_name, opts);
        pool.ipo_list = NULL;
    }

    for (a = plp->ipo_list; a != NULL; a = a->ipn_next)
        load_poolnode(plp->ipo_unit, plp->ipo_name, a, iocfunc);

    if ((opts & OPT_REMOVE) != 0) {
        if ((*iocfunc)(poolfd, SIOCLOOKUPDELTABLE, &op))
            if ((opts & OPT_DONOTHING) == 0) {
                perror("load_pool:SIOCLOOKUPDELTABLE");
                return -1;
            }
    }
    return 0;
}