While we do support the "O bit" running a script (usually to start a dhcpv6 client) we have no options for setups which set the "M bit" for, e.g., static address assignment as in EC2. Duplicate most of the "O bit" logic to also start a script for the "M bit" with the one difference: if the "M bit" is set we will not start the script for the "O bit" as well (per RFC 4861, Section 4.2). Reviewed by: hrs, markj MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D26099
204 lines
5.7 KiB
C
204 lines
5.7 KiB
C
/* $KAME: dump.c,v 1.13 2003/10/05 00:09:36 itojun Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (C) 1999 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/capsicum.h>
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#include <sys/socket.h>
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#include <sys/queue.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/icmp6.h>
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#include <arpa/inet.h>
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#include <capsicum_helpers.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <syslog.h>
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#include <time.h>
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#include "rtsold.h"
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static const char * const ifstatstr[] =
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{ "IDLE", "DELAY", "PROBE", "DOWN", "TENTATIVE" };
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void
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rtsold_dump(FILE *fp)
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{
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struct ifinfo *ifi;
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struct rainfo *rai;
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struct ra_opt *rao;
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struct timespec now;
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char ntopbuf[INET6_ADDRSTRLEN];
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if (fseek(fp, 0, SEEK_SET) != 0) {
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warnmsg(LOG_ERR, __func__, "fseek(): %s", strerror(errno));
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return;
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}
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(void)ftruncate(fileno(fp), 0);
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(void)clock_gettime(CLOCK_MONOTONIC_FAST, &now);
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TAILQ_FOREACH(ifi, &ifinfo_head, ifi_next) {
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fprintf(fp, "Interface %s\n", ifi->ifname);
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fprintf(fp, " probe interval: ");
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if (ifi->probeinterval) {
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fprintf(fp, "%d\n", ifi->probeinterval);
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fprintf(fp, " probe timer: %d\n", ifi->probetimer);
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} else {
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fprintf(fp, "infinity\n");
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fprintf(fp, " no probe timer\n");
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}
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fprintf(fp, " interface status: %s\n",
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ifi->active > 0 ? "active" : "inactive");
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fprintf(fp, " managed config: %s\n",
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ifi->managedconfig ? "on" : "off");
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fprintf(fp, " other config: %s\n",
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ifi->otherconfig ? "on" : "off");
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fprintf(fp, " rtsold status: %s\n", ifstatstr[ifi->state]);
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fprintf(fp, " carrier detection: %s\n",
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ifi->mediareqok ? "available" : "unavailable");
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fprintf(fp, " probes: %d, dadcount = %d\n",
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ifi->probes, ifi->dadcount);
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if (ifi->timer.tv_sec == tm_max.tv_sec &&
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ifi->timer.tv_nsec == tm_max.tv_nsec)
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fprintf(fp, " no timer\n");
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else {
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fprintf(fp, " timer: interval=%d:%d, expire=%s\n",
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(int)ifi->timer.tv_sec,
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(int)ifi->timer.tv_nsec / 1000,
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(ifi->expire.tv_sec < now.tv_sec) ? "expired"
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: sec2str(&ifi->expire));
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}
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fprintf(fp, " number of valid RAs: %d\n", ifi->racnt);
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TAILQ_FOREACH(rai, &ifi->ifi_rainfo, rai_next) {
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fprintf(fp, " RA from %s\n",
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inet_ntop(AF_INET6, &rai->rai_saddr.sin6_addr,
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ntopbuf, sizeof(ntopbuf)));
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TAILQ_FOREACH(rao, &rai->rai_ra_opt, rao_next) {
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fprintf(fp, " option: ");
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switch (rao->rao_type) {
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case ND_OPT_RDNSS:
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fprintf(fp, "RDNSS: %s (expire: %s)\n",
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(char *)rao->rao_msg,
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sec2str(&rao->rao_expire));
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break;
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case ND_OPT_DNSSL:
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fprintf(fp, "DNSSL: %s (expire: %s)\n",
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(char *)rao->rao_msg,
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sec2str(&rao->rao_expire));
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break;
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default:
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break;
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}
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}
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fprintf(fp, "\n");
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}
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}
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fflush(fp);
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}
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FILE *
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rtsold_init_dumpfile(const char *dumpfile)
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{
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cap_rights_t rights;
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FILE *fp;
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if ((fp = fopen(dumpfile, "w")) == NULL) {
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warnmsg(LOG_WARNING, __func__, "opening a dump file(%s): %s",
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dumpfile, strerror(errno));
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return (NULL);
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}
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cap_rights_init(&rights, CAP_FSTAT, CAP_FTRUNCATE, CAP_SEEK, CAP_WRITE);
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if (caph_rights_limit(fileno(fp), &rights) != 0) {
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warnmsg(LOG_WARNING, __func__, "caph_rights_limit(%s): %s",
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dumpfile, strerror(errno));
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return (NULL);
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}
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return (fp);
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}
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const char *
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sec2str(const struct timespec *total)
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{
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static char result[256];
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int days, hours, mins, secs;
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int first = 1;
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char *p = result;
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char *ep = &result[sizeof(result)];
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int n;
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struct timespec now;
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time_t tsec;
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clock_gettime(CLOCK_MONOTONIC_FAST, &now);
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tsec = total->tv_sec;
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tsec += total->tv_nsec / 1000 / 1000000;
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tsec -= now.tv_sec;
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tsec -= now.tv_nsec / 1000 / 1000000;
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days = tsec / 3600 / 24;
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hours = (tsec / 3600) % 24;
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mins = (tsec / 60) % 60;
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secs = tsec % 60;
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if (days) {
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first = 0;
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n = snprintf(p, ep - p, "%dd", days);
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if (n < 0 || n >= ep - p)
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return "?";
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p += n;
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}
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if (!first || hours) {
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first = 0;
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n = snprintf(p, ep - p, "%dh", hours);
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if (n < 0 || n >= ep - p)
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return "?";
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p += n;
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}
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if (!first || mins) {
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first = 0;
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n = snprintf(p, ep - p, "%dm", mins);
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if (n < 0 || n >= ep - p)
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return "?";
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p += n;
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}
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snprintf(p, ep - p, "%ds", secs);
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return (result);
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}
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