577 lines
16 KiB
C
577 lines
16 KiB
C
/* $OpenBSD: main.c,v 1.52 2005/02/10 14:25:08 itojun Exp $ */
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/* $NetBSD: main.c,v 1.9 1996/05/07 02:55:02 thorpej Exp $ */
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/*
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* Copyright (c) 1983, 1988, 1993
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* 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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#ifndef lint
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char copyright[] =
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"@(#) Copyright (c) 1983, 1988, 1993\n\
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Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifdef INHERITED_CODE
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#ifndef lint
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#if 0
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static char sccsid[] = "from: @(#)main.c 8.4 (Berkeley) 3/1/94";
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#else
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static char *rcsid = "$OpenBSD: main.c,v 1.52 2005/02/10 14:25:08 itojun Exp $";
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#endif
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#endif /* not lint */
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#endif
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#include <net-snmp/net-snmp-config.h>
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#include <net-snmp/net-snmp-includes.h>
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#include <net-snmp/utilities.h>
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#if HAVE_NETDB_H
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#include <netdb.h>
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#endif
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#include "main.h"
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#include "netstat.h"
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#if HAVE_WINSOCK_H
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#include "winstub.h"
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#endif
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int aflag; /* show all sockets (including servers) */
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int bflag; /* show bytes instead of packets */
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int dflag; /* show i/f dropped packets */
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int gflag; /* show group (multicast) routing or stats */
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int iflag; /* show interfaces */
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int lflag; /* show routing table with use and ref */
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int Lflag; /* Legacy mibs */
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int mflag; /* show memory stats */
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int nflag; /* show addresses numerically */
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int oflag; /* Open/Net-BSD style octet output */
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int pflag; /* show given protocol */
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int qflag; /* only display non-zero values for output */
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int rflag; /* show routing tables (or routing stats) */
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int Sflag; /* show source address in routing table */
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int sflag; /* show protocol statistics */
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int tflag; /* show i/f watchdog timers */
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int vflag; /* be verbose */
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int interval; /* repeat interval for i/f stats */
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char *intrface; /* desired i/f for stats, or NULL for all i/fs */
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int af; /* address family */
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int max_getbulk = 32; /* specifies the max-repeaters value to use with GETBULK requests */
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char *progname = NULL;
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const char *pname;
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/*
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* struct nlist nl[] - Omitted
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*/
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typedef void (stringfun)(const char*);
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struct protox {
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/* pr_index/pr_sindex - Omitted */
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int pr_wanted; /* 1 if wanted, 0 otherwise */
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stringfun *pr_cblocks; /* control blocks printing routine */
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stringfun *pr_stats; /* statistics printing routine */
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const char *pr_name; /* well-known name */
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};
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struct protox protox[] = {
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{ 1, tcpprotopr, tcp_stats, "tcp" },
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{ 1, udpprotopr, udp_stats, "udp" },
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{ 1, (stringfun*)0, ip_stats, "ip" }, /* protopr Omitted */
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{ 1, (stringfun*)0, icmp_stats, "icmp" },
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/* igmp/ah/esp/ipencap/etherip/ipcomp/carp/pfsync/pim - Omitted */
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{ 0, (stringfun*)0, (stringfun*)0, NULL }
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};
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struct protox ip6protox[] = {
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{ 1, tcp6protopr, (stringfun*)0, "tcp6" },
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{ 1, udp6protopr, (stringfun*)0, "udp6" },
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{ 1, (stringfun*)0, ip6_stats, "ip6" },/* ip6protopr Omitted */
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{ 1, (stringfun*)0, icmp6_stats, "icmp6" },
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/* pim6/rip6 - Omitted */
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{ 0, (stringfun*)0, (stringfun*)0, NULL }
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};
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struct protox ipxprotox[] = {
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{ 1, tcpxprotopr, tcp_stats, "tcp" },
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{ 1, udpxprotopr, udp_stats, "udp" },
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{ 1, (stringfun*)0, ipx_stats, "ip" },/* ip6protopr Omitted */
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{ 1, (stringfun*)0, ipx_stats, "ip6" },/* ip6protopr Omitted */
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{ 1, (stringfun*)0, icmpx_stats, "icmp" },
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{ 1, (stringfun*)0, icmpx_stats, "icmp6" },
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{ 0, (stringfun*)0, (stringfun*)0, NULL }
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};
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/* {ipx,ns,atalk}protox Omitted */
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struct protox *protoprotox[] = {
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protox, ip6protox, NULL
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};
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static void printproto(struct protox *, const char *);
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static void usage(void);
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static struct protox *name2protox(const char *);
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static struct protox *knownname(const char *);
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netsnmp_session *ss;
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struct protox *tp = NULL; /* for printing cblocks & stats */
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static void
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optProc( int argc, char *const *argv, int opt )
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{
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switch (opt) {
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case 'C':
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while (*optarg) {
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switch (*optarg++) {
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case 'a':
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aflag = 1;
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break;
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case 'b':
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bflag = 1;
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break;
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case 'd':
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dflag = 1;
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break;
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case 'f':
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if (!*optarg)
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optarg = argv[optind++];
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if (strcmp(optarg, "inet") == 0)
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af = AF_INET;
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else if (strcmp(optarg, "inet6") == 0)
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af = AF_INET6;
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/*
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else if (strcmp(optarg, "local") == 0)
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af = AF_LOCAL;
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else if (strcmp(optarg, "unix") == 0)
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af = AF_UNIX;
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else if (strcmp(optarg, "ipx") == 0)
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af = AF_IPX;
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else if (strcmp(optarg, "ns") == 0)
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af = AF_NS;
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else if (strcmp(optarg, "encap") == 0)
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af = PF_KEY;
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else if (strcmp(optarg, "atalk") == 0)
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af = AF_APPLETALK;
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*/
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else {
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(void)fprintf(stderr,
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"%s: %s: unknown address family\n",
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progname, optarg);
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exit(1);
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}
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return;
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case 'g':
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gflag = 1;
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break;
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case 'I':
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iflag = 1;
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if (!*optarg)
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optarg = argv[optind++];
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intrface = optarg;
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return;
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case 'i':
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iflag = 1;
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break;
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case 'L':
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Lflag = 1;
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break;
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/* case 'L': FreeBSD: Display listen queue lengths
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NetBSD: Suppress link-level routes */
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/* case 'l': OpenBSD: Wider IPv6 display
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Linux: Listening sockets only
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lflag = 1;
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break;
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case 'M': *BSD: Memory image
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Linux: Masqueraded connections
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memf = optarg;
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break;
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*/
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case 'm':
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mflag = 1;
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break;
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/* case 'N': *BSD: Kernel image
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nlistf = optarg;
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break;
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*/
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case 'n':
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nflag = 1;
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break;
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case 'o':
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oflag = 1;
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break;
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/* case 'P': NetBSD:
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OpenBSD: dump PCB block */
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case 'p':
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if (!*optarg)
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optarg = argv[optind++];
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if ((tp = name2protox(optarg)) == NULL) {
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(void)fprintf(stderr,
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"%s: %s: unknown protocol\n",
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progname, optarg);
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exit(1);
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}
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pflag = 1;
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pname = tp->pr_name;
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return;
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/* case 'q': NetBSD: IRQ information
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OpenBSD: Suppress inactive I/Fs
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qflag = 1;
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break;
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*/
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case 'r':
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rflag = 1;
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break;
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case 'R':
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if (optind < argc) {
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if (argv[optind]) {
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max_getbulk = atoi(argv[optind]);
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if (max_getbulk == 0) {
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usage();
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fprintf(stderr, "Bad -CR option: %s\n",
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argv[optind]);
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exit(1);
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}
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}
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} else {
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usage();
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fprintf(stderr, "Bad -CR option: no argument given\n");
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exit(1);
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}
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optind++;
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break;
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case 'S': /* FreeBSD:
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NetBSD: Semi-numeric display
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OpenBSD: Show route source selector */
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Sflag = 1;
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break;
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case 's':
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++sflag;
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break;
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/* case 't': FreeBSD:
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OpenBSD: Display watchdog timers
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tflag = 1;
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break;
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case 'u': OpenBSD: unix sockets only
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af = AF_UNIX;
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break;
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*/
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case 'v':
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vflag = 1;
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break;
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case 'w':
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if (!*optarg)
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optarg = argv[optind++];
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interval = atoi(optarg);
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iflag = 1;
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return;
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case '?':
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default:
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usage();
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exit(1);
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}
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}
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break; /* End of '-Cx' switch */
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/*
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* Backward compatability for the main display modes
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* (where this doesn't clash with standard SNMP flags)
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*/
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case 'i':
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iflag = 1;
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break;
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case 'R':
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rflag = 1; /* -r sets the retry count */
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break;
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case 's':
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++sflag;
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break;
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}
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}
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int
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main(int argc, char *argv[])
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{
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netsnmp_session session;
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struct protoent *p;
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char *cp;
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int exit_code = 1;
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SOCK_STARTUP;
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af = AF_UNSPEC;
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cp = strrchr( argv[0], '/' );
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if (cp)
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progname = cp+1;
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else
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progname = argv[0];
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switch (snmp_parse_args( argc, argv, &session, "C:iRs", optProc)) {
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case NETSNMP_PARSE_ARGS_ERROR:
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goto out;
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case NETSNMP_PARSE_ARGS_SUCCESS_EXIT:
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exit_code = 0;
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goto out;
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case NETSNMP_PARSE_ARGS_ERROR_USAGE:
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usage();
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goto out;
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default:
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break;
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}
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/*
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* Check argc vs optind ??
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*/
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argv += optind;
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argc -= optind;
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/*
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* Open an SNMP session.
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*/
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ss = snmp_open(&session);
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if (ss == NULL) {
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/*
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* diagnose snmp_open errors with the input netsnmp_session pointer
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*/
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snmp_sess_perror("snmpnetstat", &session);
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goto out;
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}
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/*
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* Omitted:
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* Privilege handling
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* "Backward Compatibility"
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* Kernel namelis handling
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*/
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#if 0
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if (mflag) {
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/*
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mbpr(nl[N_MBSTAT].n_value, nl[N_MBPOOL].n_value,
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nl[N_MCLPOOL].n_value);
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*/
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exit_code = 0;
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goto out;
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}
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if (pflag) {
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printproto(tp, tp->pr_name);
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exit_code = 0;
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goto out;
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}
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#endif
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/*
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* Keep file descriptors open to avoid overhead
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* of open/close on each call to get* routines.
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*/
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sethostent(1);
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setnetent(1);
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if (iflag) {
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intpr(interval);
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exit_code = 0;
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goto out;
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}
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if (rflag) {
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/*
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if (sflag)
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rt_stats();
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else
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*/
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if (Lflag || routexpr(af) == 0) {
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if (route4pr(af) == 0 && af == AF_INET) routepr();
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route6pr(af);
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}
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exit_code = 0;
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goto out;
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}
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/*
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if (gflag) {
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if (sflag) {
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if (af == AF_INET || af == AF_UNSPEC)
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mrt_stats(nl[N_MRTPROTO].n_value,
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nl[N_MRTSTAT].n_value);
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#ifdef NETSNMP_ENABLE_IPV6
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if (af == AF_INET6 || af == AF_UNSPEC)
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mrt6_stats(nl[N_MRT6PROTO].n_value,
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nl[N_MRT6STAT].n_value);
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#endif
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}
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else {
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if (af == AF_INET || af == AF_UNSPEC)
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mroutepr(nl[N_MRTPROTO].n_value,
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nl[N_MFCHASHTBL].n_value,
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nl[N_MFCHASH].n_value,
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nl[N_VIFTABLE].n_value);
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#ifdef NETSNMP_ENABLE_IPV6
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if (af == AF_INET6 || af == AF_UNSPEC)
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mroute6pr(nl[N_MRT6PROTO].n_value,
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nl[N_MF6CTABLE].n_value,
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nl[N_MIF6TABLE].n_value);
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#endif
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}
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exit_code = 0;
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goto out;
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}
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*/
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setservent(1);
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if (Lflag) {
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switch (af) {
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case AF_UNSPEC:
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setprotoent(1);
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/* ugh, this is O(MN) ... why do we do this? */
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while ((p = getprotoent())) {
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for (tp = protox; tp->pr_name; tp++)
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if (strcmp(tp->pr_name, p->p_name) == 0)
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if (tp->pr_name && tp->pr_wanted)
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printproto(tp, p->p_name);
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}
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endprotoent();
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break;
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case AF_INET:
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for (tp = protox; tp->pr_name; tp++)
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printproto(tp, tp->pr_name);
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/* FALL THROUGH */
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case AF_INET6:
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for (tp = ip6protox; tp->pr_name; tp++)
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printproto(tp, tp->pr_name);
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}
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}
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else {
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for (tp = ipxprotox; tp->pr_name; tp++)
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if (!pname || strcmp(pname,tp->pr_name) == 0)
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printproto(tp, pname);
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}
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/*
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if (af == AF_IPX || af == AF_UNSPEC)
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for (tp = ipxprotox; tp->pr_name; tp++)
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printproto(tp, tp->pr_name);
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if (af == AF_NS || af == AF_UNSPEC)
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for (tp = nsprotox; tp->pr_name; tp++)
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printproto(tp, tp->pr_name);
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if ((af == AF_UNIX || af == AF_UNSPEC) && !sflag)
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unixpr(nl[N_UNIXSW].n_value);
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if (af == AF_APPLETALK || af == AF_UNSPEC)
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for (tp = atalkprotox; tp->pr_name; tp++)
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printproto(tp, tp->pr_name);
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*/
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exit_code = 0;
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out:
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SOCK_CLEANUP;
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return exit_code;
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}
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/*
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* Print out protocol statistics or control blocks (per sflag).
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* Namelist checks - Omitted
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*/
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static void
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printproto(struct protox *tp, const char *name)
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{
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void (*pr)(const char *);
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if (sflag) {
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pr = tp->pr_stats;
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} else {
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pr = tp->pr_cblocks;
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}
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if (pr != NULL)
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(*pr)(name);
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}
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/*
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* Read kernel memory - Omitted
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*/
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const char *
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plural(int n)
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{
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return (n != 1 ? "s" : "");
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}
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/*
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* Find the protox for the given "well-known" name.
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*/
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static struct protox *
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knownname(const char *name)
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{
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struct protox **tpp, *tp;
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for (tpp = protoprotox; *tpp; tpp++)
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for (tp = *tpp; tp->pr_name; tp++)
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if (strcmp(tp->pr_name, name) == 0)
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return (tp);
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return (NULL);
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}
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/*
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* Find the protox corresponding to name.
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*/
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static struct protox *
|
|
name2protox(const char *name)
|
|
{
|
|
struct protox *tp;
|
|
char **alias; /* alias from p->aliases */
|
|
struct protoent *p;
|
|
|
|
/*
|
|
* Try to find the name in the list of "well-known" names. If that
|
|
* fails, check if name is an alias for an Internet protocol.
|
|
*/
|
|
if ((tp = knownname(name)))
|
|
return (tp);
|
|
|
|
setprotoent(1); /* make protocol lookup cheaper */
|
|
while ((p = getprotoent())) {
|
|
/* netsnmp_assert: name not same as p->name */
|
|
for (alias = p->p_aliases; *alias; alias++)
|
|
if (strcmp(name, *alias) == 0) {
|
|
endprotoent();
|
|
return (knownname(p->p_name));
|
|
}
|
|
}
|
|
endprotoent();
|
|
return (NULL);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr,
|
|
"usage: %s [snmp_opts] [-Canv] [-Cf address_family]\n", progname);
|
|
(void)fprintf(stderr,
|
|
" %s [snmp_opts] [-Cibodnv] [-CI interface] [-Cw wait]\n", progname);
|
|
(void)fprintf(stderr,
|
|
" %s [snmp_opts] [-Cs[s]] [-Cp protocol]\n", progname);
|
|
(void)fprintf(stderr,
|
|
" %s [snmp_opts] [-Crnv] [-Cf address_family]\n", progname);
|
|
}
|