usr.lib/in.ripngd/if.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (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 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*  Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/*    All Rights Reserved   */

/*
 * Portions of this source code were derived from Berkeley 4.3 BSD
 * under license from the Regents of the University of California.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

/*
 * Routing Table Management Daemon
 */
#include "defs.h"

/*
 * Find the interface with given name.
 */
struct interface *
if_ifwithname(char *name)
{
    struct interface *ifp;

    for (ifp = ifnet; ifp != NULL; ifp = ifp->int_next) {
        if (ifp->int_name != NULL &&
            strcmp(ifp->int_name, name) == 0)
            break;
    }
    return (ifp);
}

/*
 * An interface has declared itself down - remove it completely
 * from our routing tables but keep the interface structure around.
 */
void
if_purge(struct interface *pifp)
{
    rtpurgeif(pifp);
    pifp->int_flags &= ~RIP6_IFF_UP;
}

static void
if_dump2(FILE *fp)
{
    struct interface *ifp;
    char buf1[INET6_ADDRSTRLEN];
    static struct bits {
        uint_t  t_bits;
        char    *t_name;
    } flagbits[] = {
        /* BEGIN CSTYLED */
        { RIP6_IFF_UP,      "UP" },
        { RIP6_IFF_POINTOPOINT, "POINTOPOINT" },
        { RIP6_IFF_MARKED,  "MARKED" },
        { RIP6_IFF_NORTEXCH,    "NORTEXCH" },
        { RIP6_IFF_PRIVATE, "PRIVATE" },
        { 0,            NULL }
        /* END CSTYLED */
    };
    struct bits *p;
    char c;
    boolean_t first;

    for (ifp = ifnet; ifp != NULL; ifp = ifp->int_next) {
        (void) fprintf(fp, "interface %s:\n",
            (ifp->int_name != NULL) ? ifp->int_name : "(noname)");

        (void) fprintf(fp, "\tflags ");
        c = ' ';
        for (first = _B_TRUE, p = flagbits; p->t_bits > 0; p++) {
            if ((ifp->int_flags & p->t_bits) == 0)
                continue;
            (void) fprintf(fp, "%c%s", c, p->t_name);
            if (first) {
                c = '|';
                first = _B_FALSE;
            }
        }
        if (first)
            (void) fprintf(fp, " 0");

        (void) fprintf(fp, "\n\tpackets received %d\n",
            ifp->int_ipackets);
        (void) fprintf(fp, "\tpackets sent %d\n", ifp->int_opackets);
        (void) fprintf(fp, "\ttransitions %d\n", ifp->int_transitions);
        if ((ifp->int_flags & RIP6_IFF_UP) == 0)
            continue;
        if (ifp->int_flags & RIP6_IFF_POINTOPOINT) {
            (void) fprintf(fp, "\tlocal %s\n",
                inet_ntop(AF_INET6, (void *)&ifp->int_addr, buf1,
                sizeof (buf1)));
            (void) fprintf(fp, "\tremote %s\n",
                inet_ntop(AF_INET6, (void *)&ifp->int_dstaddr, buf1,
                sizeof (buf1)));
        } else {
            (void) fprintf(fp, "\tprefix %s/%d\n",
                inet_ntop(AF_INET6, (void *)&ifp->int_addr, buf1,
                sizeof (buf1)),
                ifp->int_prefix_length);
        }
        (void) fprintf(fp, "\tmetric %d\n", ifp->int_metric);
        (void) fprintf(fp, "\tmtu %d\n", ifp->int_mtu);
    }
    (void) fflush(fp);
}

void
if_dump(void)
{
    if (ftrace != NULL)
        if_dump2(ftrace);
    else
        if_dump2(stderr);
}