1820 lines
42 KiB
C
1820 lines
42 KiB
C
/* $NetBSD: route.c,v 1.169 2022/04/10 09:50:45 andvar Exp $ */
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/*
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* Copyright (c) 1983, 1989, 1991, 1993
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* The Regents of the University of California. 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 University 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 REGENTS 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 REGENTS 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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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1983, 1989, 1991, 1993\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)route.c 8.6 (Berkeley) 4/28/95";
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#else
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__RCSID("$NetBSD: route.c,v 1.169 2022/04/10 09:50:45 andvar Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/file.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/sysctl.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <net/if_dl.h>
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#include <net80211/ieee80211_netbsd.h>
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <netatalk/at.h>
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#include <netmpls/mpls.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <paths.h>
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#include <err.h>
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#include <util.h>
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#include "keywords.h"
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#include "extern.h"
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#include "prog_ops.h"
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#include "rtutil.h"
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union sockunion {
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struct sockaddr sa;
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struct sockaddr_in sin;
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#ifdef INET6
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struct sockaddr_in6 sin6;
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#endif
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struct sockaddr_at sat;
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struct sockaddr_dl sdl;
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#ifndef SMALL
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struct sockaddr_mpls smpls;
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#endif /* SMALL */
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struct sockaddr_storage sstorage;
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};
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typedef union sockunion *sup;
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struct sou {
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union sockunion *so_dst, *so_gate, *so_mask, *so_genmask, *so_ifa,
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*so_ifp, *so_mpls;
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};
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static const char *route_strerror(int);
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static void set_metric(const char *, int);
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static int newroute(int, char *const *);
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static void inet_makenetandmask(u_int32_t, struct sockaddr_in *, struct sou *);
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#ifdef INET6
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static int inet6_makenetandmask(const struct sockaddr_in6 *, struct sou *);
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#endif
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static int getaddr(int, const char *, struct hostent **, struct sou *);
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static int flushroutes(int, char *const [], int);
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static char *netmask_string(const struct sockaddr *, int, int);
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static int prefixlen(const char *, struct sou *);
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#ifndef SMALL
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static void interfaces(void);
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static void monitor(int, char * const *);
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static int print_getmsg(struct rt_msghdr *, int, struct sou *);
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static const char *linkstate(struct if_msghdr *);
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static sup readtag(sup, const char *);
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static void addtag(sup, const char *, int);
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#endif /* SMALL */
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static int rtmsg(int, int, struct sou *);
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static void mask_addr(struct sou *);
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static void print_rtmsg(struct rt_msghdr *, int);
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static void pmsg_common(struct rt_msghdr *);
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static void pmsg_addrs(const char *, int);
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static void bprintf(FILE *, int, const char *);
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static void sodump(sup, const char *);
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static void sockaddr(const char *, struct sockaddr *);
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int pid, rtm_addrs;
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int sock;
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int forcehost, forcenet, doflush, af;
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int iflag, Lflag, nflag, qflag, tflag, Sflag, Tflag;
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int verbose, aflen = sizeof(struct sockaddr_in), rtag;
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int locking, lockrest, debugonly, shortoutput;
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struct rt_metrics rt_metrics;
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int rtm_inits;
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short ns_nullh[] = {0,0,0};
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short ns_bh[] = {-1,-1,-1};
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static const char opts[] = "dfLnqSsTtv";
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void
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usage(const char *cp)
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{
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if (cp)
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warnx("botched keyword: %s", cp);
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(void)fprintf(stderr,
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"Usage: %s [-%s] cmd [[-<qualifiers>] args]\n", getprogname(), opts);
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exit(1);
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/* NOTREACHED */
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}
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#define PRIETHER "02x:%02x:%02x:%02x:%02x:%02x"
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#define PRIETHER_ARGS(__enaddr) (__enaddr)[0], (__enaddr)[1], (__enaddr)[2], \
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(__enaddr)[3], (__enaddr)[4], (__enaddr)[5]
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int
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main(int argc, char * const *argv)
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{
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int ch;
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if (argc < 2)
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usage(NULL);
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while ((ch = getopt(argc, argv, opts)) != -1)
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switch (ch) {
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case 'd':
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debugonly = 1;
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break;
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case 'f':
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doflush = 1;
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break;
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case 'L':
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Lflag = RT_LFLAG;
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break;
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case 'n':
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nflag = RT_NFLAG;
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break;
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case 'q':
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qflag = 1;
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break;
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case 'S':
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Sflag = 1;
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break;
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case 's':
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shortoutput = 1;
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break;
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case 'T':
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Tflag = RT_TFLAG;
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break;
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case 't':
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tflag = 1;
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break;
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case 'v':
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verbose = RT_VFLAG;
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break;
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case '?':
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default:
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usage(NULL);
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/*NOTREACHED*/
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}
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argc -= optind;
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argv += optind;
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if (prog_init && prog_init() == -1)
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err(1, "init failed");
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pid = prog_getpid();
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if (tflag)
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sock = prog_open("/dev/null", O_WRONLY, 0);
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else {
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int on = 1;
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sock = prog_socket(PF_ROUTE, SOCK_RAW, 0);
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if (prog_setsockopt(sock, SOL_SOCKET, SO_RERROR,
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&on, sizeof(on)) == -1)
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warn("SO_RERROR");
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}
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if (sock < 0)
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err(EXIT_FAILURE, "socket");
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if (*argv == NULL) {
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if (doflush)
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ch = K_FLUSH;
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else
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goto no_cmd;
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} else
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ch = keyword(*argv);
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switch (ch) {
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#ifndef SMALL
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case K_GET:
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#endif /* SMALL */
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case K_CHANGE:
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case K_ADD:
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case K_DELETE:
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if (doflush)
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(void)flushroutes(1, argv, 0);
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return newroute(argc, argv);
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case K_SHOW:
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show(argc, argv, Lflag|nflag|Tflag|verbose);
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return 0;
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#ifndef SMALL
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case K_MONITOR:
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monitor(argc, argv);
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return 0;
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#endif /* SMALL */
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case K_FLUSH:
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return flushroutes(argc, argv, 0);
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case K_FLUSHALL:
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return flushroutes(argc, argv, 1);
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no_cmd:
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default:
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usage(*argv);
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/*NOTREACHED*/
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}
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}
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static char *
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netmask_string(const struct sockaddr *mask, int len, int family)
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{
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static char smask[INET6_ADDRSTRLEN];
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struct sockaddr_in nsin;
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struct sockaddr_in6 nsin6;
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if (len >= 0)
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snprintf(smask, sizeof(smask), "%d", len);
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else {
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switch (family) {
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case AF_INET:
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memset(&nsin, 0, sizeof(nsin));
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memcpy(&nsin, mask, mask->sa_len);
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snprintf(smask, sizeof(smask), "%s",
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inet_ntoa(nsin.sin_addr));
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break;
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case AF_INET6:
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memset(&nsin6, 0, sizeof(nsin6));
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memcpy(&nsin6, mask, mask->sa_len);
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inet_ntop(family, &nsin6.sin6_addr, smask,
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sizeof(smask));
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break;
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default:
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snprintf(smask, sizeof(smask), "%s", any_ntoa(mask));
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}
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}
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return smask;
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}
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/*
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* Purge all entries in the routing tables not
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* associated with network interfaces.
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*/
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static int
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flushroutes(int argc, char * const argv[], int doall)
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{
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struct sockaddr *sa;
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size_t needed;
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int flags, mib[6], rlen, seqno;
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char *buf, *next, *lim;
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const char *afname;
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struct rt_msghdr *rtm;
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flags = 0;
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af = AF_UNSPEC;
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/* Don't want to read back our messages */
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prog_shutdown(sock, SHUT_RD);
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parse_show_opts(argc, argv, &af, &flags, &afname, false);
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mib[0] = CTL_NET;
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mib[1] = PF_ROUTE;
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mib[2] = 0; /* protocol */
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mib[3] = 0; /* wildcard address family */
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mib[4] = NET_RT_DUMP;
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mib[5] = 0; /* no flags */
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if (prog_sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
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err(EXIT_FAILURE, "route-sysctl-estimate");
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buf = lim = NULL;
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if (needed) {
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if ((buf = malloc(needed)) == NULL)
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err(EXIT_FAILURE, "malloc");
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if (prog_sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
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err(EXIT_FAILURE, "actual retrieval of routing table");
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lim = buf + needed;
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}
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if (verbose) {
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(void)printf("Examining routing table from sysctl\n");
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if (af != AF_UNSPEC)
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printf("(address family %s)\n", afname);
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}
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if (needed == 0)
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return 0;
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seqno = 0; /* ??? */
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for (next = buf; next < lim; next += rtm->rtm_msglen) {
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rtm = (struct rt_msghdr *)next;
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sa = (struct sockaddr *)(rtm + 1);
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if (verbose)
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print_rtmsg(rtm, rtm->rtm_msglen);
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if ((rtm->rtm_flags & flags) != flags)
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continue;
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if (!(rtm->rtm_flags & (RTF_GATEWAY | RTF_STATIC)) && !doall)
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continue;
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if (af != AF_UNSPEC && sa->sa_family != af)
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continue;
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if (debugonly)
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continue;
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rtm->rtm_type = RTM_DELETE;
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rtm->rtm_seq = seqno;
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do {
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rlen = prog_write(sock, next, rtm->rtm_msglen);
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} while (rlen == -1 && errno == ENOBUFS);
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if (rlen == -1) {
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warnx("writing to routing socket: %s",
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route_strerror(errno));
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return 1;
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}
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if (rlen < (int)rtm->rtm_msglen) {
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warnx("write to routing socket, got %d for rlen", rlen);
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return 1;
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}
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seqno++;
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if (qflag)
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continue;
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if (verbose)
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print_rtmsg(rtm, rlen);
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else {
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(void)printf("%-20.20s ", netname(sa, NULL, nflag));
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sa = (struct sockaddr *)(RT_ROUNDUP(sa->sa_len) +
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(char *)sa);
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(void)printf("%-20.20s ", routename(sa, nflag));
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(void)printf("done\n");
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}
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}
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free(buf);
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return 0;
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}
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static const char *
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route_strerror(int error)
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{
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switch (error) {
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case ESRCH:
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return "not in table";
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case EBUSY:
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return "entry in use";
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case ENOBUFS:
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return "routing table overflow";
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default:
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return strerror(error);
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}
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}
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static void
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set_metric(const char *value, int key)
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{
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int flag = 0;
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uint64_t noval, *valp = &noval;
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switch (key) {
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#define caseof(x, y, z) \
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case x: valp = (uint64_t *)&rt_metrics.z; flag = y; break
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caseof(K_MTU, RTV_MTU, rmx_mtu);
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caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount);
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caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire);
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caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe);
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caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe);
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caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh);
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caseof(K_RTT, RTV_RTT, rmx_rtt);
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caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar);
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}
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rtm_inits |= flag;
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if (lockrest || locking)
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rt_metrics.rmx_locks |= flag;
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if (locking)
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locking = 0;
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*valp = strtoul(value, NULL, 0);
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}
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static int
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newroute(int argc, char *const *argv)
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{
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const char *cmd, *dest = "", *gateway = "";
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int ishost = 0, ret, attempts, oerrno, flags = RTF_STATIC;
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int key;
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struct hostent *hp = 0;
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struct sou sou, *soup = &sou;
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sou.so_dst = calloc(1, sizeof(union sockunion));
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sou.so_gate = calloc(1, sizeof(union sockunion));
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sou.so_mask = calloc(1, sizeof(union sockunion));
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sou.so_genmask = calloc(1, sizeof(union sockunion));
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sou.so_ifa = calloc(1, sizeof(union sockunion));
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sou.so_ifp = calloc(1, sizeof(union sockunion));
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sou.so_mpls = calloc(1, sizeof(union sockunion));
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if (sou.so_dst == NULL || sou.so_gate == NULL || sou.so_mask == NULL ||
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sou.so_genmask == NULL || sou.so_ifa == NULL || sou.so_ifp == NULL ||
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sou.so_mpls == NULL)
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errx(EXIT_FAILURE, "Cannot allocate memory");
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cmd = argv[0];
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af = AF_UNSPEC;
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if (*cmd != 'g') {
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/* Don't want to read back our messages */
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prog_shutdown(sock, SHUT_RD);
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}
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while (--argc > 0) {
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if (**(++argv)== '-') {
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switch (key = keyword(1 + *argv)) {
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case K_SA:
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af = PF_ROUTE;
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aflen = sizeof(union sockunion);
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break;
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#ifndef SMALL
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case K_ATALK:
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af = AF_APPLETALK;
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aflen = sizeof(struct sockaddr_at);
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break;
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#endif
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case K_INET:
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af = AF_INET;
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aflen = sizeof(struct sockaddr_in);
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break;
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#ifdef INET6
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case K_INET6:
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af = AF_INET6;
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aflen = sizeof(struct sockaddr_in6);
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break;
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#endif
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case K_LINK:
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af = AF_LINK;
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aflen = sizeof(struct sockaddr_dl);
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break;
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#ifndef SMALL
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case K_MPLS:
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af = AF_MPLS;
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aflen = sizeof(struct sockaddr_mpls);
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break;
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case K_TAG:
|
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if (!--argc)
|
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usage(1+*argv);
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af = AF_MPLS;
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aflen = sizeof(struct sockaddr_mpls);
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(void)getaddr(RTA_TAG, *++argv, 0, soup);
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break;
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#endif /* SMALL */
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case K_IFACE:
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case K_INTERFACE:
|
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iflag++;
|
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break;
|
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case K_NOSTATIC:
|
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flags &= ~RTF_STATIC;
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break;
|
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case K_LOCK:
|
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locking = 1;
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break;
|
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case K_LOCKREST:
|
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lockrest = 1;
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break;
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case K_HOST:
|
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forcehost++;
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break;
|
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case K_REJECT:
|
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flags |= RTF_REJECT;
|
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break;
|
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case K_NOREJECT:
|
|
flags &= ~RTF_REJECT;
|
|
break;
|
|
case K_BLACKHOLE:
|
|
flags |= RTF_BLACKHOLE;
|
|
break;
|
|
case K_NOBLACKHOLE:
|
|
flags &= ~RTF_BLACKHOLE;
|
|
break;
|
|
case K_PROTO1:
|
|
flags |= RTF_PROTO1;
|
|
break;
|
|
case K_PROTO2:
|
|
flags |= RTF_PROTO2;
|
|
break;
|
|
case K_PROXY:
|
|
flags |= RTF_ANNOUNCE;
|
|
break;
|
|
case K_CONNECTED:
|
|
flags |= RTF_CONNECTED;
|
|
break;
|
|
case K_NOCONNECTED:
|
|
flags &= ~RTF_CONNECTED;
|
|
break;
|
|
case K_STATIC:
|
|
flags |= RTF_STATIC;
|
|
break;
|
|
case K_IFA:
|
|
if (!--argc)
|
|
usage(1+*argv);
|
|
(void)getaddr(RTA_IFA, *++argv, 0, soup);
|
|
break;
|
|
case K_IFP:
|
|
if (!--argc)
|
|
usage(1+*argv);
|
|
(void)getaddr(RTA_IFP, *++argv, 0, soup);
|
|
break;
|
|
case K_GENMASK:
|
|
if (!--argc)
|
|
usage(1+*argv);
|
|
(void)getaddr(RTA_GENMASK, *++argv, 0, soup);
|
|
break;
|
|
case K_GATEWAY:
|
|
if (!--argc)
|
|
usage(1+*argv);
|
|
(void)getaddr(RTA_GATEWAY, *++argv, 0, soup);
|
|
break;
|
|
case K_DST:
|
|
if (!--argc)
|
|
usage(1+*argv);
|
|
ishost = getaddr(RTA_DST, *++argv, &hp, soup);
|
|
dest = *argv;
|
|
break;
|
|
case K_NETMASK:
|
|
if (!--argc)
|
|
usage(1+*argv);
|
|
(void)getaddr(RTA_NETMASK, *++argv, 0, soup);
|
|
/* FALLTHROUGH */
|
|
case K_NET:
|
|
forcenet++;
|
|
break;
|
|
case K_PREFIXLEN:
|
|
if (!--argc)
|
|
usage(1+*argv);
|
|
ishost = prefixlen(*++argv, soup);
|
|
break;
|
|
case K_MTU:
|
|
case K_HOPCOUNT:
|
|
case K_EXPIRE:
|
|
case K_RECVPIPE:
|
|
case K_SENDPIPE:
|
|
case K_SSTHRESH:
|
|
case K_RTT:
|
|
case K_RTTVAR:
|
|
if (!--argc)
|
|
usage(1+*argv);
|
|
set_metric(*++argv, key);
|
|
break;
|
|
default:
|
|
usage(1+*argv);
|
|
}
|
|
} else {
|
|
if ((rtm_addrs & RTA_DST) == 0) {
|
|
dest = *argv;
|
|
ishost = getaddr(RTA_DST, *argv, &hp, soup);
|
|
} else if ((rtm_addrs & RTA_GATEWAY) == 0) {
|
|
gateway = *argv;
|
|
(void)getaddr(RTA_GATEWAY, *argv, &hp, soup);
|
|
} else {
|
|
ret = atoi(*argv);
|
|
|
|
if (ret == 0) {
|
|
if (strcmp(*argv, "0") == 0) {
|
|
if (!qflag) {
|
|
warnx("%s, %s",
|
|
"old usage of trailing 0",
|
|
"assuming route to if");
|
|
}
|
|
} else
|
|
usage(NULL);
|
|
iflag = 1;
|
|
continue;
|
|
} else if (ret > 0 && ret < 10) {
|
|
if (!qflag) {
|
|
warnx("%s, %s",
|
|
"old usage of trailing digit",
|
|
"assuming route via gateway");
|
|
}
|
|
iflag = 0;
|
|
continue;
|
|
}
|
|
(void)getaddr(RTA_NETMASK, *argv, 0, soup);
|
|
}
|
|
}
|
|
}
|
|
if ((rtm_addrs & RTA_DST) == 0)
|
|
errx(EXIT_FAILURE, "missing destination specification");
|
|
if (*cmd == 'a' && (rtm_addrs & RTA_GATEWAY) == 0)
|
|
errx(EXIT_FAILURE, "missing gateway specification");
|
|
if (forcehost && forcenet)
|
|
errx(EXIT_FAILURE, "-host and -net conflict");
|
|
else if (forcehost)
|
|
ishost = 1;
|
|
else if (forcenet)
|
|
ishost = 0;
|
|
flags |= RTF_UP;
|
|
if (ishost)
|
|
flags |= RTF_HOST;
|
|
if (iflag == 0)
|
|
flags |= RTF_GATEWAY;
|
|
for (attempts = 1; ; attempts++) {
|
|
errno = 0;
|
|
if ((ret = rtmsg(*cmd, flags, soup)) == 0)
|
|
break;
|
|
if (errno != ENETUNREACH && errno != ESRCH)
|
|
break;
|
|
if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) {
|
|
hp->h_addr_list++;
|
|
memmove(&soup->so_gate->sin.sin_addr, hp->h_addr_list[0],
|
|
hp->h_length);
|
|
} else
|
|
break;
|
|
}
|
|
if (*cmd == 'g' || qflag)
|
|
goto out;
|
|
|
|
oerrno = errno;
|
|
(void)printf("%s %s %s", cmd, ishost? "host" : "net", dest);
|
|
if (*gateway) {
|
|
(void)printf(": gateway %s", gateway);
|
|
if (attempts > 1 && ret == 0 && af == AF_INET)
|
|
(void)printf(" (%s)",
|
|
inet_ntoa(soup->so_gate->sin.sin_addr));
|
|
}
|
|
if (ret == 0)
|
|
(void)printf("\n");
|
|
else
|
|
(void)printf(": %s\n", route_strerror(oerrno));
|
|
out:
|
|
free(sou.so_dst);
|
|
free(sou.so_gate);
|
|
free(sou.so_mask);
|
|
free(sou.so_genmask);
|
|
free(sou.so_ifa);
|
|
free(sou.so_ifp);
|
|
free(sou.so_mpls);
|
|
|
|
return ret != 0;
|
|
}
|
|
|
|
static void
|
|
inet_makenetandmask(const u_int32_t net, struct sockaddr_in * const isin,
|
|
struct sou *soup)
|
|
{
|
|
struct sockaddr_in *sin;
|
|
u_int32_t addr, mask = 0;
|
|
char *cp;
|
|
|
|
rtm_addrs |= RTA_NETMASK;
|
|
if (net == 0)
|
|
mask = addr = 0;
|
|
else if (net < 128) {
|
|
addr = net << IN_CLASSA_NSHIFT;
|
|
mask = IN_CLASSA_NET;
|
|
} else if (net < 192) {
|
|
addr = net << IN_CLASSA_NSHIFT;
|
|
mask = IN_CLASSB_NET;
|
|
} else if (net < 224) {
|
|
addr = net << IN_CLASSA_NSHIFT;
|
|
mask = IN_CLASSC_NET;
|
|
} else if (net < 256) {
|
|
addr = net << IN_CLASSA_NSHIFT;
|
|
mask = IN_CLASSD_NET;
|
|
} else if (net < 49152) { /* 192 * 256 */
|
|
addr = net << IN_CLASSB_NSHIFT;
|
|
mask = IN_CLASSB_NET;
|
|
} else if (net < 57344) { /* 224 * 256 */
|
|
addr = net << IN_CLASSB_NSHIFT;
|
|
mask = IN_CLASSC_NET;
|
|
} else if (net < 65536) {
|
|
addr = net << IN_CLASSB_NSHIFT;
|
|
mask = IN_CLASSB_NET;
|
|
} else if (net < 14680064L) { /* 224 * 65536 */
|
|
addr = net << IN_CLASSC_NSHIFT;
|
|
mask = IN_CLASSC_NET;
|
|
} else if (net < 16777216L) {
|
|
addr = net << IN_CLASSC_NSHIFT;
|
|
mask = IN_CLASSD_NET;
|
|
} else {
|
|
addr = net;
|
|
if ((addr & IN_CLASSA_HOST) == 0)
|
|
mask = IN_CLASSA_NET;
|
|
else if ((addr & IN_CLASSB_HOST) == 0)
|
|
mask = IN_CLASSB_NET;
|
|
else if ((addr & IN_CLASSC_HOST) == 0)
|
|
mask = IN_CLASSC_NET;
|
|
else
|
|
mask = -1;
|
|
}
|
|
isin->sin_addr.s_addr = htonl(addr);
|
|
sin = &soup->so_mask->sin;
|
|
sin->sin_addr.s_addr = htonl(mask);
|
|
sin->sin_len = 0;
|
|
sin->sin_family = 0;
|
|
cp = (char *)(&sin->sin_addr + 1);
|
|
while (*--cp == 0 && cp > (char *)sin)
|
|
;
|
|
sin->sin_len = 1 + cp - (char *)sin;
|
|
sin->sin_family = AF_INET;
|
|
}
|
|
|
|
#ifdef INET6
|
|
/*
|
|
* XXX the function may need more improvement...
|
|
*/
|
|
static int
|
|
inet6_makenetandmask(const struct sockaddr_in6 * const sin6, struct sou *soup)
|
|
{
|
|
const char *plen;
|
|
struct in6_addr in6;
|
|
|
|
plen = NULL;
|
|
if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) &&
|
|
sin6->sin6_scope_id == 0) {
|
|
plen = "0";
|
|
} else if ((sin6->sin6_addr.s6_addr[0] & 0xe0) == 0x20) {
|
|
/* aggregatable global unicast - RFC2374 */
|
|
memset(&in6, 0, sizeof(in6));
|
|
if (!memcmp(&sin6->sin6_addr.s6_addr[8], &in6.s6_addr[8], 8))
|
|
plen = "64";
|
|
}
|
|
|
|
if (!plen || strcmp(plen, "128") == 0)
|
|
return 1;
|
|
else {
|
|
rtm_addrs |= RTA_NETMASK;
|
|
(void)prefixlen(plen, soup);
|
|
return 0;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Interpret an argument as a network address of some kind,
|
|
* returning 1 if a host address, 0 if a network address.
|
|
*/
|
|
static int
|
|
getaddr(int which, const char *s, struct hostent **hpp, struct sou *soup)
|
|
{
|
|
sup su;
|
|
struct hostent *hp;
|
|
struct netent *np;
|
|
u_int32_t val;
|
|
char *t;
|
|
int afamily; /* local copy of af so we can change it */
|
|
|
|
if (af == AF_UNSPEC) {
|
|
af = AF_INET;
|
|
aflen = sizeof(struct sockaddr_in);
|
|
}
|
|
afamily = af;
|
|
rtm_addrs |= which;
|
|
switch (which) {
|
|
case RTA_DST:
|
|
su = soup->so_dst;
|
|
break;
|
|
case RTA_GATEWAY:
|
|
su = soup->so_gate;
|
|
break;
|
|
case RTA_NETMASK:
|
|
su = soup->so_mask;
|
|
break;
|
|
case RTA_GENMASK:
|
|
su = soup->so_genmask;
|
|
break;
|
|
case RTA_IFP:
|
|
su = soup->so_ifp;
|
|
afamily = AF_LINK;
|
|
break;
|
|
case RTA_IFA:
|
|
su = soup->so_ifa;
|
|
su->sa.sa_family = af;
|
|
break;
|
|
#ifndef SMALL
|
|
case RTA_TAG:
|
|
su = soup->so_mpls;
|
|
afamily = AF_MPLS;
|
|
break;
|
|
#endif
|
|
default:
|
|
su = NULL;
|
|
usage("Internal Error");
|
|
/*NOTREACHED*/
|
|
}
|
|
su->sa.sa_len = aflen;
|
|
su->sa.sa_family = afamily; /* cases that don't want it have left already */
|
|
if (strcmp(s, "default") == 0) {
|
|
switch (which) {
|
|
case RTA_DST:
|
|
forcenet++;
|
|
(void)getaddr(RTA_NETMASK, s, 0, soup);
|
|
break;
|
|
case RTA_NETMASK:
|
|
case RTA_GENMASK:
|
|
su->sa.sa_len = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
switch (afamily) {
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
{
|
|
struct addrinfo hints, *res;
|
|
char *slash = 0;
|
|
|
|
if (which == RTA_DST && (slash = (strrchr(s, '/'))) != 0)
|
|
*slash = '\0';
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_family = afamily; /*AF_INET6*/
|
|
hints.ai_flags = AI_NUMERICHOST;
|
|
hints.ai_socktype = SOCK_DGRAM; /*dummy*/
|
|
if (getaddrinfo(s, "0", &hints, &res) != 0) {
|
|
hints.ai_flags = 0;
|
|
if (slash) {
|
|
*slash = '/';
|
|
slash = 0;
|
|
}
|
|
if (getaddrinfo(s, "0", &hints, &res) != 0)
|
|
errx(EXIT_FAILURE, "%s: bad value", s);
|
|
}
|
|
if (slash)
|
|
*slash = '/';
|
|
if (sizeof(su->sin6) != res->ai_addrlen)
|
|
errx(EXIT_FAILURE, "%s: bad value", s);
|
|
if (res->ai_next) {
|
|
errx(EXIT_FAILURE,
|
|
"%s: address resolved to multiple values", s);
|
|
}
|
|
memcpy(&su->sin6, res->ai_addr, sizeof(su->sin6));
|
|
freeaddrinfo(res);
|
|
inet6_putscopeid(&su->sin6, INET6_IS_ADDR_LINKLOCAL|
|
|
INET6_IS_ADDR_MC_LINKLOCAL);
|
|
if (hints.ai_flags == AI_NUMERICHOST) {
|
|
if (slash)
|
|
return prefixlen(slash + 1, soup);
|
|
if (which == RTA_DST)
|
|
return inet6_makenetandmask(&su->sin6, soup);
|
|
return 0;
|
|
} else
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
case PF_ROUTE:
|
|
su->sa.sa_len = sizeof(*su);
|
|
sockaddr(s, &su->sa);
|
|
return 1;
|
|
|
|
#ifndef SMALL
|
|
case AF_APPLETALK:
|
|
t = strchr (s, '.');
|
|
if (!t) {
|
|
badataddr:
|
|
errx(EXIT_FAILURE, "bad address: %s", s);
|
|
}
|
|
val = atoi (s);
|
|
if (val > 65535)
|
|
goto badataddr;
|
|
su->sat.sat_addr.s_net = val;
|
|
val = atoi (t);
|
|
if (val > 256)
|
|
goto badataddr;
|
|
su->sat.sat_addr.s_node = val;
|
|
rtm_addrs |= RTA_NETMASK;
|
|
return(forcehost || su->sat.sat_addr.s_node != 0);
|
|
case AF_MPLS:
|
|
if (which == RTA_DST)
|
|
soup->so_dst = readtag(su, s);
|
|
else if (which == RTA_TAG)
|
|
soup->so_mpls = readtag(su, s);
|
|
else
|
|
errx(EXIT_FAILURE, "MPLS can be used only as "
|
|
"DST or TAG");
|
|
return 1;
|
|
#endif
|
|
|
|
case AF_LINK:
|
|
link_addr(s, &su->sdl);
|
|
return 1;
|
|
|
|
case AF_INET:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (hpp == NULL)
|
|
hpp = &hp;
|
|
*hpp = NULL;
|
|
|
|
if ((t = strchr(s, '/')) != NULL && which == RTA_DST) {
|
|
*t = '\0';
|
|
if (forcenet == 0) {
|
|
if ((val = inet_addr(s)) != INADDR_NONE) {
|
|
inet_makenetandmask(htonl(val), &su->sin, soup);
|
|
return prefixlen(&t[1], soup);
|
|
}
|
|
} else {
|
|
if ((val = inet_network(s)) != INADDR_NONE) {
|
|
inet_makenetandmask(val, &su->sin, soup);
|
|
return prefixlen(&t[1], soup);
|
|
}
|
|
}
|
|
*t = '/';
|
|
}
|
|
if (inet_aton(s, &su->sin.sin_addr) &&
|
|
(which != RTA_DST || forcenet == 0)) {
|
|
val = su->sin.sin_addr.s_addr;
|
|
if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY)
|
|
return 1;
|
|
else {
|
|
val = ntohl(val);
|
|
goto netdone;
|
|
}
|
|
}
|
|
if ((val = inet_network(s)) != INADDR_NONE ||
|
|
((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0)) {
|
|
netdone:
|
|
if (which == RTA_DST)
|
|
inet_makenetandmask(val, &su->sin, soup);
|
|
return 0;
|
|
}
|
|
hp = gethostbyname(s);
|
|
if (hp) {
|
|
*hpp = hp;
|
|
su->sin.sin_family = hp->h_addrtype;
|
|
memmove(&su->sin.sin_addr, hp->h_addr, hp->h_length);
|
|
return 1;
|
|
}
|
|
errx(EXIT_FAILURE, "%s: bad value", s);
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
#ifndef SMALL
|
|
static sup
|
|
readtag(sup su, const char *s)
|
|
{
|
|
char *p, *n, *norig;
|
|
int mplssize = 0;
|
|
sup retsu = su;
|
|
|
|
n = strdup(s);
|
|
if (n == NULL)
|
|
errx(EXIT_FAILURE, "%s: Cannot allocate memory", s);
|
|
norig = n;
|
|
for (uint i = 0; i < strlen(n); i++)
|
|
if(n[i] == ',')
|
|
mplssize++;
|
|
|
|
#define MPLS_NEW_SIZE (sizeof(struct sockaddr_mpls) + \
|
|
mplssize * sizeof(union mpls_shim))
|
|
|
|
if (mplssize != 0 && sizeof(union sockunion) < MPLS_NEW_SIZE) {
|
|
free(su);
|
|
retsu = malloc(MPLS_NEW_SIZE);
|
|
retsu->smpls.smpls_family = AF_MPLS;
|
|
}
|
|
retsu->smpls.smpls_len = MPLS_NEW_SIZE;
|
|
mplssize = 0;
|
|
while ((p = strchr(n, ',')) != NULL) {
|
|
p[0] = '\0';
|
|
addtag(retsu, n, mplssize);
|
|
n = p + 1;
|
|
mplssize++;
|
|
}
|
|
addtag(retsu, n, mplssize);
|
|
|
|
free(norig);
|
|
return retsu;
|
|
}
|
|
|
|
static void
|
|
addtag(sup su, const char *s, int where)
|
|
{
|
|
union mpls_shim *ms = &su->smpls.smpls_addr;
|
|
|
|
if (atoi(s) < 0 || atoi(s) >= (1 << 20))
|
|
errx(EXIT_FAILURE, "%s: Bad tag", s);
|
|
ms[where].s_addr = 0;
|
|
ms[where].shim.label = atoi(s);
|
|
ms[where].s_addr = htonl(ms[where].s_addr);
|
|
}
|
|
#endif /* SMALL */
|
|
|
|
int
|
|
prefixlen(const char *s, struct sou *soup)
|
|
{
|
|
int max, len = atoi(s);
|
|
#ifdef INET6
|
|
int q, r;
|
|
#endif
|
|
|
|
switch (af) {
|
|
case AF_INET:
|
|
max = sizeof(struct in_addr) * 8;
|
|
break;
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
max = sizeof(struct in6_addr) * 8;
|
|
break;
|
|
#endif
|
|
default:
|
|
errx(EXIT_FAILURE, "prefixlen is not supported with af %d", af);
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
rtm_addrs |= RTA_NETMASK;
|
|
if (len < -1 || len > max)
|
|
errx(EXIT_FAILURE, "%s: bad value", s);
|
|
|
|
#ifdef INET6
|
|
q = len >> 3;
|
|
r = len & 7;
|
|
#endif
|
|
switch (af) {
|
|
case AF_INET:
|
|
memset(soup->so_mask, 0, sizeof(*soup->so_mask));
|
|
soup->so_mask->sin.sin_family = AF_INET;
|
|
soup->so_mask->sin.sin_len = sizeof(struct sockaddr_in);
|
|
soup->so_mask->sin.sin_addr.s_addr = (len == 0 ? 0
|
|
: htonl(0xffffffff << (32 - len)));
|
|
break;
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
soup->so_mask->sin6.sin6_family = AF_INET6;
|
|
soup->so_mask->sin6.sin6_len = sizeof(struct sockaddr_in6);
|
|
memset(&soup->so_mask->sin6.sin6_addr, 0,
|
|
sizeof(soup->so_mask->sin6.sin6_addr));
|
|
if (q > 0)
|
|
memset(&soup->so_mask->sin6.sin6_addr, 0xff, q);
|
|
if (r > 0)
|
|
*((u_char *)&soup->so_mask->sin6.sin6_addr + q) =
|
|
(0xff00 >> r) & 0xff;
|
|
break;
|
|
#endif
|
|
}
|
|
return len == max;
|
|
}
|
|
|
|
#ifndef SMALL
|
|
static void
|
|
interfaces(void)
|
|
{
|
|
size_t needed;
|
|
int mib[6];
|
|
char *buf, *lim, *next;
|
|
struct rt_msghdr *rtm;
|
|
|
|
mib[0] = CTL_NET;
|
|
mib[1] = PF_ROUTE;
|
|
mib[2] = 0; /* protocol */
|
|
mib[3] = 0; /* wildcard address family */
|
|
mib[4] = NET_RT_IFLIST;
|
|
mib[5] = 0; /* no flags */
|
|
if (prog_sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
|
|
err(EXIT_FAILURE, "route-sysctl-estimate");
|
|
if (needed) {
|
|
if ((buf = malloc(needed)) == NULL)
|
|
err(EXIT_FAILURE, "malloc");
|
|
if (prog_sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
|
|
err(EXIT_FAILURE,
|
|
"actual retrieval of interface table");
|
|
}
|
|
lim = buf + needed;
|
|
for (next = buf; next < lim; next += rtm->rtm_msglen) {
|
|
rtm = (struct rt_msghdr *)next;
|
|
print_rtmsg(rtm, rtm->rtm_msglen);
|
|
}
|
|
free(buf);
|
|
}
|
|
}
|
|
|
|
static void
|
|
monitor(int argc, char * const *argv)
|
|
{
|
|
int i, n;
|
|
union {
|
|
char msg[2048];
|
|
struct rt_msghdr hdr;
|
|
} u;
|
|
int count = 0;
|
|
|
|
/* usage: route monitor [-c <count>] */
|
|
|
|
/* eat "monitor" */
|
|
argc -= 1;
|
|
argv += 1;
|
|
|
|
/* parse [-c <count>] */
|
|
if (argc > 0) {
|
|
if (argc != 2)
|
|
usage(argv[0]);
|
|
if (strcmp(argv[0], "-c") != 0)
|
|
usage(argv[0]);
|
|
|
|
count = atoi(argv[1]);
|
|
}
|
|
|
|
verbose = 1;
|
|
if (debugonly) {
|
|
interfaces();
|
|
exit(0);
|
|
}
|
|
for(i = 0; count == 0 || i < count; i++) {
|
|
time_t now;
|
|
n = prog_read(sock, &u, sizeof(u));
|
|
if (n == -1) {
|
|
warn("read");
|
|
continue;
|
|
}
|
|
now = time(NULL);
|
|
(void)printf("got message of size %d on %s", n, ctime(&now));
|
|
print_rtmsg(&u.hdr, n);
|
|
}
|
|
}
|
|
|
|
#endif /* SMALL */
|
|
|
|
|
|
struct {
|
|
struct rt_msghdr m_rtm;
|
|
char m_space[512];
|
|
} m_rtmsg;
|
|
|
|
static int
|
|
rtmsg(int cmd, int flags, struct sou *soup)
|
|
{
|
|
static int seq;
|
|
int rlen;
|
|
char *cp = m_rtmsg.m_space;
|
|
int l;
|
|
|
|
#define NEXTADDR(w, u) \
|
|
if (rtm_addrs & (w)) {\
|
|
l = RT_ROUNDUP(u->sa.sa_len); memmove(cp, u, l); cp += l;\
|
|
if (verbose && ! shortoutput) sodump(u,#u);\
|
|
}
|
|
|
|
errno = 0;
|
|
memset(&m_rtmsg, 0, sizeof(m_rtmsg));
|
|
if (cmd == 'a')
|
|
cmd = RTM_ADD;
|
|
else if (cmd == 'c')
|
|
cmd = RTM_CHANGE;
|
|
else if (cmd == 'g') {
|
|
#ifdef SMALL
|
|
return -1;
|
|
#else /* SMALL */
|
|
cmd = RTM_GET;
|
|
if (soup->so_ifp->sa.sa_family == AF_UNSPEC) {
|
|
soup->so_ifp->sa.sa_family = AF_LINK;
|
|
soup->so_ifp->sa.sa_len = sizeof(struct sockaddr_dl);
|
|
rtm_addrs |= RTA_IFP;
|
|
}
|
|
#endif /* SMALL */
|
|
} else
|
|
cmd = RTM_DELETE;
|
|
#define rtm m_rtmsg.m_rtm
|
|
rtm.rtm_type = cmd;
|
|
rtm.rtm_flags = flags;
|
|
rtm.rtm_version = RTM_VERSION;
|
|
rtm.rtm_seq = ++seq;
|
|
rtm.rtm_addrs = rtm_addrs;
|
|
rtm.rtm_rmx = rt_metrics;
|
|
rtm.rtm_inits = rtm_inits;
|
|
|
|
if (rtm_addrs & RTA_NETMASK)
|
|
mask_addr(soup);
|
|
NEXTADDR(RTA_DST, soup->so_dst);
|
|
NEXTADDR(RTA_GATEWAY, soup->so_gate);
|
|
NEXTADDR(RTA_NETMASK, soup->so_mask);
|
|
NEXTADDR(RTA_GENMASK, soup->so_genmask);
|
|
NEXTADDR(RTA_IFP, soup->so_ifp);
|
|
NEXTADDR(RTA_IFA, soup->so_ifa);
|
|
#ifndef SMALL
|
|
NEXTADDR(RTA_TAG, soup->so_mpls);
|
|
#endif
|
|
rtm.rtm_msglen = l = cp - (char *)&m_rtmsg;
|
|
if (verbose && ! shortoutput) {
|
|
if (rtm_addrs)
|
|
putchar('\n');
|
|
print_rtmsg(&rtm, l);
|
|
}
|
|
if (debugonly)
|
|
return 0;
|
|
do {
|
|
rlen = prog_write(sock, (char *)&m_rtmsg, l);
|
|
} while (rlen == -1 && errno == ENOBUFS);
|
|
if (rlen == -1) {
|
|
warnx("writing to routing socket: %s", route_strerror(errno));
|
|
return -1;
|
|
}
|
|
if (rlen < l) {
|
|
warnx("write to routing socket, got %d for rlen", rlen);
|
|
return 1;
|
|
}
|
|
#ifndef SMALL
|
|
if (cmd == RTM_GET) {
|
|
do {
|
|
l = prog_read(sock,
|
|
(char *)&m_rtmsg, sizeof(m_rtmsg));
|
|
} while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid));
|
|
if (l < 0)
|
|
err(EXIT_FAILURE, "read from routing socket");
|
|
else
|
|
return print_getmsg(&rtm, l, soup);
|
|
}
|
|
#endif /* SMALL */
|
|
#undef rtm
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
mask_addr(struct sou *soup)
|
|
{
|
|
int olen = soup->so_mask->sa.sa_len;
|
|
char *cp1 = olen + (char *)soup->so_mask, *cp2;
|
|
|
|
for (soup->so_mask->sa.sa_len = 0; cp1 > (char *)soup->so_mask; )
|
|
if (*--cp1 != 0) {
|
|
soup->so_mask->sa.sa_len = 1 + cp1 - (char *)soup->so_mask;
|
|
break;
|
|
}
|
|
if ((rtm_addrs & RTA_DST) == 0)
|
|
return;
|
|
switch (soup->so_dst->sa.sa_family) {
|
|
case AF_INET:
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
#endif
|
|
#ifndef SMALL
|
|
case AF_APPLETALK:
|
|
#endif /* SMALL */
|
|
case 0:
|
|
return;
|
|
}
|
|
cp1 = soup->so_mask->sa.sa_len + 1 + (char *)soup->so_dst;
|
|
cp2 = soup->so_dst->sa.sa_len + 1 + (char *)soup->so_dst;
|
|
while (cp2 > cp1)
|
|
*--cp2 = 0;
|
|
cp2 = soup->so_mask->sa.sa_len + 1 + (char *)soup->so_mask;
|
|
while (cp1 > soup->so_dst->sa.sa_data)
|
|
*--cp1 &= *--cp2;
|
|
}
|
|
|
|
const char * const msgtypes[] = {
|
|
[RTM_ADD] = "RTM_ADD: Add Route",
|
|
[RTM_DELETE] = "RTM_DELETE: Delete Route",
|
|
[RTM_CHANGE] = "RTM_CHANGE: Change Metrics, Flags or Gateway",
|
|
[RTM_GET] = "RTM_GET: Report Metrics",
|
|
[RTM_LOSING] = "RTM_LOSING: Kernel Suspects Partitioning",
|
|
[RTM_REDIRECT] = "RTM_REDIRECT: Told to use different route",
|
|
[RTM_MISS] = "RTM_MISS: Lookup failed on this address",
|
|
[RTM_LOCK] = "RTM_LOCK: fix specified metrics",
|
|
[RTM_OLDADD] = "RTM_OLDADD: caused by SIOCADDRT",
|
|
[RTM_OLDDEL] = "RTM_OLDDEL: caused by SIOCDELRT",
|
|
[RTM_NEWADDR] = "RTM_NEWADDR: address being added to iface",
|
|
[RTM_DELADDR] = "RTM_DELADDR: address being removed from iface",
|
|
[RTM_OOIFINFO] = "RTM_OOIFINFO: iface status change (pre-1.5)",
|
|
[RTM_OIFINFO] = "RTM_OIFINFO: iface status change (pre-64bit time)",
|
|
[RTM_IFANNOUNCE] = "RTM_IFANNOUNCE: iface arrival/departure",
|
|
[RTM_IEEE80211] = "RTM_IEEE80211: IEEE80211 wireless event",
|
|
[RTM_IFINFO] = "RTM_IFINFO: iface status change",
|
|
[RTM_CHGADDR] = "RTM_CHGADDR: address being changed on iface",
|
|
};
|
|
|
|
const char unknownflags[] = "\020";
|
|
const char metricnames[] = RTVBITS;
|
|
const char routeflags[] = RTFBITS;
|
|
const char ifnetflags[] = IFFBITS;
|
|
const char in_ifflags[] = IN_IFFBITS;
|
|
const char in6_ifflags[] = IN6_IFFBITS;
|
|
const char addrnames[] = RTABITS;
|
|
|
|
|
|
#ifndef SMALL
|
|
static const char *
|
|
linkstate(struct if_msghdr *ifm)
|
|
{
|
|
static char buf[64];
|
|
|
|
switch (ifm->ifm_data.ifi_link_state) {
|
|
case LINK_STATE_UNKNOWN:
|
|
return "carrier: unknown";
|
|
case LINK_STATE_DOWN:
|
|
return "carrier: no carrier";
|
|
case LINK_STATE_UP:
|
|
return "carrier: active";
|
|
default:
|
|
(void)snprintf(buf, sizeof(buf), "carrier: 0x%x",
|
|
ifm->ifm_data.ifi_link_state);
|
|
return buf;
|
|
}
|
|
}
|
|
#endif /* SMALL */
|
|
|
|
static void
|
|
print_rtmsg(struct rt_msghdr *rtm, int msglen)
|
|
{
|
|
struct if_msghdr *ifm;
|
|
struct ifa_msghdr *ifam;
|
|
struct if_announcemsghdr *ifan;
|
|
union {
|
|
struct ieee80211_join_event join;
|
|
struct ieee80211_leave_event leave;
|
|
struct ieee80211_replay_event replay;
|
|
struct ieee80211_michael_event michael;
|
|
} ev;
|
|
size_t evlen = 0;
|
|
|
|
if (verbose == 0)
|
|
return;
|
|
if (rtm->rtm_version != RTM_VERSION) {
|
|
(void)printf("routing message version %d not understood\n",
|
|
rtm->rtm_version);
|
|
return;
|
|
}
|
|
if (msgtypes[rtm->rtm_type])
|
|
(void)printf("%s: ", msgtypes[rtm->rtm_type]);
|
|
else
|
|
(void)printf("#%d: ", rtm->rtm_type);
|
|
(void)printf("len %d, ", rtm->rtm_msglen);
|
|
switch (rtm->rtm_type) {
|
|
case RTM_IFINFO:
|
|
ifm = (struct if_msghdr *)rtm;
|
|
(void)printf("if# %d, %s, flags: ", ifm->ifm_index,
|
|
#ifdef SMALL
|
|
""
|
|
#else
|
|
linkstate(ifm)
|
|
#endif /* SMALL */
|
|
);
|
|
bprintf(stdout, ifm->ifm_flags, ifnetflags);
|
|
pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs);
|
|
break;
|
|
case RTM_NEWADDR:
|
|
case RTM_DELADDR:
|
|
case RTM_CHGADDR:
|
|
ifam = (struct ifa_msghdr *)rtm;
|
|
(void)printf("pid %d, metric %d, addrflags: ",
|
|
ifam->ifam_pid, ifam->ifam_metric);
|
|
struct sockaddr *sa = (struct sockaddr *)(ifam + 1);
|
|
const char *bits;
|
|
switch (sa->sa_family) {
|
|
case AF_INET:
|
|
bits = in_ifflags;
|
|
break;
|
|
case AF_INET6:
|
|
bits = in6_ifflags;
|
|
break;
|
|
default:
|
|
bits = unknownflags;
|
|
break;
|
|
}
|
|
bprintf(stdout, ifam->ifam_addrflags, bits);
|
|
pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs);
|
|
break;
|
|
case RTM_IEEE80211:
|
|
ifan = (struct if_announcemsghdr *)rtm;
|
|
(void)printf("if# %d, what: ", ifan->ifan_index);
|
|
switch (ifan->ifan_what) {
|
|
case RTM_IEEE80211_ASSOC:
|
|
printf("associate");
|
|
break;
|
|
case RTM_IEEE80211_REASSOC:
|
|
printf("re-associate");
|
|
break;
|
|
case RTM_IEEE80211_DISASSOC:
|
|
printf("disassociate");
|
|
break;
|
|
case RTM_IEEE80211_SCAN:
|
|
printf("scan complete");
|
|
break;
|
|
case RTM_IEEE80211_JOIN:
|
|
evlen = sizeof(ev.join);
|
|
printf("join");
|
|
break;
|
|
case RTM_IEEE80211_LEAVE:
|
|
evlen = sizeof(ev.leave);
|
|
printf("leave");
|
|
break;
|
|
case RTM_IEEE80211_MICHAEL:
|
|
evlen = sizeof(ev.michael);
|
|
printf("michael");
|
|
break;
|
|
case RTM_IEEE80211_REPLAY:
|
|
evlen = sizeof(ev.replay);
|
|
printf("replay");
|
|
break;
|
|
default:
|
|
evlen = 0;
|
|
printf("#%d", ifan->ifan_what);
|
|
break;
|
|
}
|
|
if (sizeof(*ifan) + evlen > ifan->ifan_msglen) {
|
|
printf(" (truncated)\n");
|
|
break;
|
|
}
|
|
(void)memcpy(&ev, (ifan + 1), evlen);
|
|
switch (ifan->ifan_what) {
|
|
case RTM_IEEE80211_JOIN:
|
|
case RTM_IEEE80211_LEAVE:
|
|
printf(" mac %" PRIETHER,
|
|
PRIETHER_ARGS(ev.join.iev_addr));
|
|
break;
|
|
case RTM_IEEE80211_REPLAY:
|
|
case RTM_IEEE80211_MICHAEL:
|
|
printf(" src %" PRIETHER " dst %" PRIETHER
|
|
" cipher %" PRIu8 " keyix %" PRIu8,
|
|
PRIETHER_ARGS(ev.replay.iev_src),
|
|
PRIETHER_ARGS(ev.replay.iev_dst),
|
|
ev.replay.iev_cipher,
|
|
ev.replay.iev_keyix);
|
|
if (ifan->ifan_what == RTM_IEEE80211_REPLAY) {
|
|
printf(" key rsc %#" PRIx64
|
|
" frame rsc %#" PRIx64,
|
|
ev.replay.iev_keyrsc, ev.replay.iev_rsc);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
printf("\n");
|
|
break;
|
|
case RTM_IFANNOUNCE:
|
|
ifan = (struct if_announcemsghdr *)rtm;
|
|
(void)printf("if# %d, what: ", ifan->ifan_index);
|
|
switch (ifan->ifan_what) {
|
|
case IFAN_ARRIVAL:
|
|
printf("arrival");
|
|
break;
|
|
case IFAN_DEPARTURE:
|
|
printf("departure");
|
|
break;
|
|
default:
|
|
printf("#%d", ifan->ifan_what);
|
|
break;
|
|
}
|
|
printf("\n");
|
|
break;
|
|
case RTM_ADD: /* FALLTHROUGH */
|
|
case RTM_CHANGE: /* FALLTHROUGH */
|
|
case RTM_DELETE: /* FALLTHROUGH */
|
|
case RTM_GET: /* FALLTHROUGH */
|
|
case RTM_LOSING: /* FALLTHROUGH */
|
|
case RTM_MISS:
|
|
(void)printf("pid %d, seq %d, errno %d, flags: ",
|
|
rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno);
|
|
bprintf(stdout, rtm->rtm_flags, routeflags);
|
|
pmsg_common(rtm);
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifndef SMALL
|
|
static int
|
|
print_getmsg(struct rt_msghdr *rtm, int msglen, struct sou *soup)
|
|
{
|
|
struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL, *ifa = NULL, *mpls = NULL;
|
|
struct sockaddr_dl *ifp = NULL;
|
|
struct sockaddr *sa;
|
|
char *cp;
|
|
unsigned int i;
|
|
|
|
if (! shortoutput) {
|
|
(void)printf(" route to: %s\n",
|
|
routename(&soup->so_dst->sa, nflag));
|
|
}
|
|
if (rtm->rtm_version != RTM_VERSION) {
|
|
warnx("routing message version %d not understood",
|
|
rtm->rtm_version);
|
|
return 1;
|
|
}
|
|
if (rtm->rtm_msglen > msglen) {
|
|
warnx("message length mismatch, in packet %d, returned %d",
|
|
rtm->rtm_msglen, msglen);
|
|
}
|
|
if (rtm->rtm_errno) {
|
|
warnx("RTM_GET: %s (errno %d)",
|
|
strerror(rtm->rtm_errno), rtm->rtm_errno);
|
|
return 1;
|
|
}
|
|
cp = ((char *)(rtm + 1));
|
|
if (rtm->rtm_addrs)
|
|
for (i = 1; i; i <<= 1)
|
|
if (i & rtm->rtm_addrs) {
|
|
sa = (struct sockaddr *)cp;
|
|
switch (i) {
|
|
case RTA_DST:
|
|
dst = sa;
|
|
break;
|
|
case RTA_GATEWAY:
|
|
gate = sa;
|
|
break;
|
|
case RTA_NETMASK:
|
|
mask = sa;
|
|
break;
|
|
case RTA_IFP:
|
|
if (sa->sa_family == AF_LINK &&
|
|
((struct sockaddr_dl *)sa)->sdl_nlen)
|
|
ifp = (struct sockaddr_dl *)sa;
|
|
break;
|
|
case RTA_IFA:
|
|
ifa = sa;
|
|
break;
|
|
case RTA_TAG:
|
|
mpls = sa;
|
|
break;
|
|
}
|
|
RT_ADVANCE(cp, sa);
|
|
}
|
|
if (dst && mask)
|
|
mask->sa_family = dst->sa_family; /* XXX */
|
|
if (dst && ! shortoutput)
|
|
(void)printf("destination: %s\n",
|
|
routename(dst, nflag));
|
|
if (mask && ! shortoutput) {
|
|
int savenflag = nflag;
|
|
|
|
nflag = RT_NFLAG;
|
|
(void)printf(" mask: %s\n",
|
|
routename(mask, nflag));
|
|
nflag = savenflag;
|
|
}
|
|
if (gate && rtm->rtm_flags & RTF_GATEWAY) {
|
|
const char *name;
|
|
|
|
name = routename(gate, nflag);
|
|
if (shortoutput) {
|
|
if (*name == '\0')
|
|
return 1;
|
|
(void)printf("%s\n", name);
|
|
} else
|
|
(void)printf(" gateway: %s\n", name);
|
|
}
|
|
if (mpls) {
|
|
const char *name;
|
|
name = routename(mpls, nflag);
|
|
if(shortoutput) {
|
|
if (*name == '\0')
|
|
return 1;
|
|
printf("%s\n", name);
|
|
} else
|
|
printf(" Tag: %s\n", name);
|
|
}
|
|
|
|
if (ifa && ! shortoutput)
|
|
(void)printf(" local addr: %s\n",
|
|
routename(ifa, nflag));
|
|
if (ifp && ! shortoutput)
|
|
(void)printf(" interface: %.*s\n",
|
|
ifp->sdl_nlen, ifp->sdl_data);
|
|
if (! shortoutput) {
|
|
(void)printf(" flags: ");
|
|
bprintf(stdout, rtm->rtm_flags, routeflags);
|
|
}
|
|
|
|
#define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ')
|
|
#define msec(u) (((u) + 500) / 1000) /* usec to msec */
|
|
|
|
if (! shortoutput) {
|
|
(void)printf("\n%s\n", "\
|
|
recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire");
|
|
printf("%8"PRId64"%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE));
|
|
printf("%8"PRId64"%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE));
|
|
printf("%8"PRId64"%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH));
|
|
printf("%8"PRId64"%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT));
|
|
printf("%8"PRId64"%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR));
|
|
printf("%8"PRId64"%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT));
|
|
printf("%8"PRId64"%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU));
|
|
if (rtm->rtm_rmx.rmx_expire)
|
|
rtm->rtm_rmx.rmx_expire -= time(0);
|
|
printf("%8"PRId64"%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE));
|
|
}
|
|
#undef lock
|
|
#undef msec
|
|
#define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD)
|
|
|
|
if (shortoutput)
|
|
return (rtm->rtm_addrs & RTF_GATEWAY) == 0;
|
|
else if (verbose)
|
|
pmsg_common(rtm);
|
|
else if (rtm->rtm_addrs &~ RTA_IGN) {
|
|
(void)printf("sockaddrs: ");
|
|
bprintf(stdout, rtm->rtm_addrs, addrnames);
|
|
putchar('\n');
|
|
}
|
|
return 0;
|
|
#undef RTA_IGN
|
|
}
|
|
#endif /* SMALL */
|
|
|
|
void
|
|
pmsg_common(struct rt_msghdr *rtm)
|
|
{
|
|
(void)printf("\nlocks: ");
|
|
bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames);
|
|
(void)printf(" inits: ");
|
|
bprintf(stdout, rtm->rtm_inits, metricnames);
|
|
pmsg_addrs((char *)(rtm + 1), rtm->rtm_addrs);
|
|
}
|
|
|
|
static void
|
|
extract_addrs(const char *cp, int addrs, const struct sockaddr *sa[], int *nmfp)
|
|
{
|
|
int i, nmf = -1;
|
|
|
|
for (i = 0; i < RTAX_MAX; i++) {
|
|
if ((1 << i) & addrs) {
|
|
sa[i] = (const struct sockaddr *)cp;
|
|
if ((i == RTAX_DST || i == RTAX_IFA) &&
|
|
nmf == -1)
|
|
nmf = sa[i]->sa_family;
|
|
RT_ADVANCE(cp, sa[i]);
|
|
} else
|
|
sa[i] = NULL;
|
|
}
|
|
|
|
if (nmfp != NULL)
|
|
*nmfp = nmf;
|
|
}
|
|
|
|
static void
|
|
pmsg_addrs(const char *cp, int addrs)
|
|
{
|
|
const struct sockaddr *sa[RTAX_MAX];
|
|
int i, nmf;
|
|
|
|
if (addrs != 0) {
|
|
(void)printf("\nsockaddrs: ");
|
|
bprintf(stdout, addrs, addrnames);
|
|
(void)putchar('\n');
|
|
extract_addrs(cp, addrs, sa, &nmf);
|
|
for (i = 0; i < RTAX_MAX; i++) {
|
|
if (sa[i] == NULL)
|
|
continue;
|
|
|
|
if (i == RTAX_NETMASK && sa[i]->sa_len)
|
|
(void)printf(" %s",
|
|
netmask_string(sa[i], -1, nmf));
|
|
else
|
|
(void)printf(" %s",
|
|
routename(sa[i], nflag));
|
|
}
|
|
}
|
|
(void)putchar('\n');
|
|
(void)fflush(stdout);
|
|
}
|
|
|
|
static void
|
|
bprintf(FILE *fp, int b, const char *f)
|
|
{
|
|
char buf[1024];
|
|
|
|
snprintb(buf, sizeof(buf), f, b);
|
|
fputs(buf, fp);
|
|
}
|
|
|
|
int
|
|
keyword(const char *cp)
|
|
{
|
|
struct keytab *kt = keywords;
|
|
|
|
while (kt->kt_cp && strcmp(kt->kt_cp, cp))
|
|
kt++;
|
|
return kt->kt_i;
|
|
}
|
|
|
|
static void
|
|
sodump(sup su, const char *which)
|
|
{
|
|
#ifdef INET6
|
|
char ntop_buf[NI_MAXHOST];
|
|
#endif
|
|
|
|
switch (su->sa.sa_family) {
|
|
case AF_INET:
|
|
(void)printf("%s: inet %s; ",
|
|
which, inet_ntoa(su->sin.sin_addr));
|
|
break;
|
|
#ifndef SMALL
|
|
case AF_APPLETALK:
|
|
(void)printf("%s: atalk %d.%d; ",
|
|
which, su->sat.sat_addr.s_net, su->sat.sat_addr.s_node);
|
|
break;
|
|
#endif
|
|
case AF_LINK:
|
|
(void)printf("%s: link %s; ",
|
|
which, link_ntoa(&su->sdl));
|
|
break;
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
(void)printf("%s: inet6 %s; ",
|
|
which, inet_ntop(AF_INET6, &su->sin6.sin6_addr,
|
|
ntop_buf, sizeof(ntop_buf)));
|
|
break;
|
|
#endif
|
|
#ifndef SMALL
|
|
case AF_MPLS:
|
|
{
|
|
union mpls_shim ms;
|
|
const union mpls_shim *pms;
|
|
int psize = sizeof(struct sockaddr_mpls);
|
|
|
|
ms.s_addr = ntohl(su->smpls.smpls_addr.s_addr);
|
|
printf("%s: mpls %u; ",
|
|
which, ms.shim.label);
|
|
|
|
pms = &su->smpls.smpls_addr;
|
|
while(psize < su->smpls.smpls_len) {
|
|
pms++;
|
|
ms.s_addr = ntohl(pms->s_addr);
|
|
printf("%u; ", ms.shim.label);
|
|
psize += sizeof(ms);
|
|
}
|
|
break;
|
|
}
|
|
#endif /* SMALL */
|
|
default:
|
|
(void)printf("%s: (%d) %s; ",
|
|
which, su->sa.sa_family, any_ntoa(&su->sa));
|
|
}
|
|
(void)fflush(stdout);
|
|
}
|
|
|
|
/* States*/
|
|
#define VIRGIN 0
|
|
#define GOTONE 1
|
|
#define GOTTWO 2
|
|
/* Inputs */
|
|
#define DIGIT (4*0)
|
|
#define END (4*1)
|
|
#define DELIM (4*2)
|
|
|
|
static void
|
|
sockaddr(const char *addr, struct sockaddr *sa)
|
|
{
|
|
char *cp = (char *)sa;
|
|
int size = sa->sa_len;
|
|
char *cplim = cp + size;
|
|
int byte = 0, state = VIRGIN, new = 0;
|
|
|
|
(void)memset(cp, 0, size);
|
|
cp++;
|
|
do {
|
|
if ((*addr >= '0') && (*addr <= '9')) {
|
|
new = *addr - '0';
|
|
} else if ((*addr >= 'a') && (*addr <= 'f')) {
|
|
new = *addr - 'a' + 10;
|
|
} else if ((*addr >= 'A') && (*addr <= 'F')) {
|
|
new = *addr - 'A' + 10;
|
|
} else if (*addr == 0)
|
|
state |= END;
|
|
else
|
|
state |= DELIM;
|
|
addr++;
|
|
switch (state /* | INPUT */) {
|
|
case GOTTWO | DIGIT:
|
|
*cp++ = byte; /*FALLTHROUGH*/
|
|
case VIRGIN | DIGIT:
|
|
state = GOTONE; byte = new; continue;
|
|
case GOTONE | DIGIT:
|
|
state = GOTTWO; byte = new + (byte << 4); continue;
|
|
default: /* | DELIM */
|
|
state = VIRGIN; *cp++ = byte; byte = 0; continue;
|
|
case GOTONE | END:
|
|
case GOTTWO | END:
|
|
*cp++ = byte; /* FALLTHROUGH */
|
|
case VIRGIN | END:
|
|
break;
|
|
}
|
|
break;
|
|
} while (cp < cplim);
|
|
sa->sa_len = cp - (char *)sa;
|
|
}
|