929 lines
31 KiB
C
929 lines
31 KiB
C
/* $OpenBSD: if.c,v 1.42 2005/03/13 16:05:50 mpf Exp $ */
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/* $NetBSD: if.c,v 1.16.4.2 1996/06/07 21:46:46 thorpej Exp $ */
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/*
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* Copyright (c) 1983, 1988, 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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#ifdef INHERITED_CODE
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#ifndef lint
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#if 0
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static char sccsid[] = "from: @(#)if.c 8.2 (Berkeley) 2/21/94";
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#else
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static char *rcsid = "$OpenBSD: if.c,v 1.42 2005/03/13 16:05:50 mpf 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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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if HAVE_NET_IF_H
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#include <net/if.h>
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#endif
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#ifndef _XOPEN_SOURCE
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#define _XOPEN_SOURCE 1
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#endif
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#ifndef _XOPEN_SOURCE_EXTENDED
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#define _XOPEN_SOURCE_EXTENDED 1
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#endif
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#include <signal.h>
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#include "main.h"
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#include "netstat.h"
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#define YES 1
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#define NO 0
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static void sidewaysintpr(u_int);
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static void timerSet(int interval_seconds);
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static void timerPause(void);
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struct _if_info {
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char name[128];
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char descr[128];
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char ip[128], route[128];
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int mtu;
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int drops;
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unsigned int ifindex;
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/*
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* Save "expandable" fields as string values
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* rather than integer statistics
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*/
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char s_ipkts[20], s_ierrs[20];
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char s_opkts[20], s_oerrs[20];
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char s_ibytes[20], s_obytes[20];
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char s_outq[20];
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unsigned long ipkts, opkts; /* Need to combine 2 MIB values */
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int operstatus;
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/*
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u_long netmask;
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struct in_addr ifip, ifroute;
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*/
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struct _if_info *next;
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};
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/*
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* Retrieve the interface addressing information
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* XXX - This could also be extended to handle non-IP interfaces
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*/
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void
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_set_address( struct _if_info *cur_if )
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{
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oid ipaddr_oid[] = { 1,3,6,1,2,1,4,20,1,0 };
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size_t ipaddr_len = OID_LENGTH( ipaddr_oid );
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static netsnmp_variable_list *addr_if_var =NULL;
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static netsnmp_variable_list *addr_mask_var=NULL;
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netsnmp_variable_list *vp, *vp2;
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union {
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in_addr_t addr;
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char data[4];
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} tmpAddr;
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char *cp;
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in_addr_t ifAddr, mask;
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/*
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* Note that this information only needs to be retrieved
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* once, and can be re-used for subsequent calls.
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*/
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if ( addr_if_var == NULL ) {
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ipaddr_oid[ 9 ] = 2; /* ipAdEntIfIndex */
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snmp_varlist_add_variable( &addr_if_var, ipaddr_oid, ipaddr_len,
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ASN_NULL, NULL, 0);
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netsnmp_query_walk( addr_if_var, ss );
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ipaddr_oid[ 9 ] = 3; /* ipAdEntNetMask */
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snmp_varlist_add_variable( &addr_mask_var, ipaddr_oid, ipaddr_len,
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ASN_NULL, NULL, 0);
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netsnmp_query_walk( addr_mask_var, ss );
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}
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/*
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* Find the address row relevant to this interface
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*/
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for (vp=addr_if_var, vp2=addr_mask_var; vp;
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vp=vp->next_variable, vp2=vp2->next_variable) {
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if ( vp->val.integer && *vp->val.integer == (int)cur_if->ifindex )
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break;
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}
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if (vp2) {
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/*
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* Always want a numeric interface IP address
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*/
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snprintf( cur_if->ip, 128, "%" NETSNMP_PRIo "u.%" NETSNMP_PRIo "u."
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"%" NETSNMP_PRIo "u.%" NETSNMP_PRIo "u",
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vp2->name[10],
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vp2->name[11],
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vp2->name[12],
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vp2->name[13]);
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/*
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* But re-use the routing table utilities/code for
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* displaying the local network information
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*/
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cp = tmpAddr.data;
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cp[0] = (uint8_t) vp2->name[10];
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cp[1] = (uint8_t) vp2->name[11];
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cp[2] = (uint8_t) vp2->name[12];
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cp[3] = (uint8_t) vp2->name[13];
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ifAddr = tmpAddr.addr;
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cp = tmpAddr.data;
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cp[0] = (uint8_t) vp2->val.string[0];
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cp[1] = (uint8_t) vp2->val.string[1];
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cp[2] = (uint8_t) vp2->val.string[2];
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cp[3] = (uint8_t) vp2->val.string[3];
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mask = tmpAddr.addr;
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snprintf( cur_if->route, 128, "%s", netname(ifAddr, mask));
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}
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}
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/*
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* Print a description of the network interfaces.
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*/
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void
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intpr(int interval)
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{
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oid ifcol_oid[] = { 1,3,6,1,2,1,2,2,1,0 };
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size_t ifcol_len = OID_LENGTH( ifcol_oid );
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oid ifxcol_oid[] = { 1,3,6,1,2,1,31,1,1,1,0 };
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size_t ifxcol_len = OID_LENGTH( ifxcol_oid );
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struct _if_info *if_head, *if_tail, *cur_if;
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netsnmp_variable_list *var, *vp;
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/*
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* Track maximum field widths, expanding as necessary
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* This is one reason why results can't be
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* displayed immediately they are retrieved.
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*/
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int max_name = 4, max_ip = 7, max_route = 7, max_outq = 5;
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int max_ipkts = 5, max_ierrs = 5, max_opkts = 5, max_oerrs = 5;
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int max_ibytes = 6, max_obytes = 6;
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int i;
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if (interval) {
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sidewaysintpr((unsigned)interval);
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return;
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}
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/*
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* The traditional "netstat -i" output combines information
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* from two SNMP tables:
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* ipAddrTable (for the IP address/network)
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* ifTable (for the interface statistics)
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*
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* The previous approach was to retrieve (and save) the
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* address information first. Then walk the main ifTable,
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* add the relevant stored addresses, and saving the
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* full information for each interface, before displaying
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* the results as a separate pass.
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*
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* This code reverses this general structure, by first retrieving
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* (and storing) the interface statistics for the whole table,
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* then inserting the address information obtained from the
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* ipAddrTable, and finally displaying the results.
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* Such an arrangement should make it easier to extend this
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* to handle non-IP interfaces (hence not in ipAddrTable)
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*/
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if_head = NULL;
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if_tail = NULL;
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var = NULL;
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#define ADD_IFVAR( x ) ifcol_oid[ ifcol_len-1 ] = x; \
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snmp_varlist_add_variable( &var, ifcol_oid, ifcol_len, ASN_NULL, NULL, 0)
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ADD_IFVAR( 2 ); /* ifName */
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ADD_IFVAR( 4 ); /* ifMtu */
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ADD_IFVAR( 8 ); /* ifOperStatus */
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/*
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* The Net/Open-BSD behaviour is to display *either* byte
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* counts *or* packet/error counts (but not both). FreeBSD
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* integrates the byte counts into the traditional display.
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*
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* The previous 'snmpnetstat' implementation followed the
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* separatist model. This re-write offers an opportunity
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* to adopt the (more useful, IMO) Free-BSD approach.
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*
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* Or we could perhaps support both styles? :-)
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*/
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if (bflag || oflag) {
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ADD_IFVAR( 10 ); /* ifInOctets */
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ADD_IFVAR( 16 ); /* ifOutOctets */
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}
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if (!oflag) {
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ADD_IFVAR( 11 ); /* ifInUcastPkts */
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ADD_IFVAR( 12 ); /* ifInNUcastPkts */
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ADD_IFVAR( 14 ); /* ifInErrors */
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ADD_IFVAR( 17 ); /* ifOutUcastPkts */
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ADD_IFVAR( 18 ); /* ifOutNUcastPkts */
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ADD_IFVAR( 20 ); /* ifOutErrors */
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ADD_IFVAR( 21 ); /* ifOutQLen */
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}
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#if 0
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if (tflag) {
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ADD_IFVAR( XX ); /* ??? */
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}
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#endif
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if (dflag) {
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ADD_IFVAR( 19 ); /* ifOutDiscards */
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}
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#undef ADD_IFVAR
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#define ADD_IFXVAR( x ) ifxcol_oid[ ifxcol_len-1 ] = x; \
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snmp_varlist_add_variable( &var, ifxcol_oid, ifxcol_len, ASN_NULL, NULL, 0)
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ADD_IFXVAR(1); /* ifName */
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#undef ADD_IFXVAR
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/*
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* Now walk the ifTable, creating a list of interfaces
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*/
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while ( 1 ) {
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if (netsnmp_query_getnext( var, ss ) != SNMP_ERR_NOERROR)
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break;
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if ((var->type & 0xF0) == 0x80) /* Exception */
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break;
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ifcol_oid[ ifcol_len-1 ] = 2; /* ifDescr */
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if ( snmp_oid_compare( ifcol_oid, ifcol_len,
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var->name, ifcol_len) != 0 )
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break; /* End of Table */
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cur_if = SNMP_MALLOC_TYPEDEF( struct _if_info );
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if (!cur_if)
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break;
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cur_if->ifindex = var->name[ var->name_length-1 ];
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for ( vp=var; vp; vp=vp->next_variable ) {
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if ((vp->type & 0xF0) == 0x80) /* Exception */
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continue;
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if ( ! vp->val.integer )
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continue;
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if ( var->name[ var->name_length-1 ] != cur_if->ifindex ) {
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/*
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* Inconsistent index information
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* XXX - Try to recover ?
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*/
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SNMP_FREE( cur_if );
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break; /* not for now, no */
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}
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switch ( vp->name[ var->name_length-2 ] ) {
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case 2: /* ifDescr */
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if (vp->val_len >= sizeof(cur_if->name))
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vp->val_len = sizeof(cur_if->name)-1;
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memmove( cur_if->name, vp->val.string, vp->val_len );
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cur_if->name[vp->val_len] = 0;
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memmove( cur_if->descr, vp->val.string, vp->val_len );
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cur_if->descr[vp->val_len] = 0;
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break;
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case 4: /* ifMtu */
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cur_if->mtu = *vp->val.integer;
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break;
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case 8: /* ifOperStatus */
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cur_if->operstatus = *vp->val.integer;
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/* XXX - any special processing ?? */
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break;
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case 10: /* ifInOctets */
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sprintf(cur_if->s_ibytes, "%lu", *vp->val.integer);
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i = strlen(cur_if->s_ibytes);
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if (i > max_ibytes)
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max_ibytes = i;
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break;
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case 11: /* ifInUcastPkts */
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cur_if->ipkts += *vp->val.integer;
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sprintf(cur_if->s_ipkts, "%lu", cur_if->ipkts);
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i = strlen(cur_if->s_ipkts);
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if (i > max_ipkts)
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max_ipkts = i;
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break;
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case 12: /* ifInNUcastPkts */
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cur_if->ipkts += *vp->val.integer;
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sprintf(cur_if->s_ipkts, "%lu", cur_if->ipkts);
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i = strlen(cur_if->s_ipkts);
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if (i > max_ipkts)
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max_ipkts = i;
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break;
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case 14: /* ifInErrors */
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sprintf(cur_if->s_ierrs, "%lu", *vp->val.integer);
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i = strlen(cur_if->s_ierrs);
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if (i > max_ierrs)
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max_ierrs = i;
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break;
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case 16: /* ifOutOctets */
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sprintf(cur_if->s_obytes, "%lu", *vp->val.integer);
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i = strlen(cur_if->s_obytes);
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if (i > max_obytes)
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max_obytes = i;
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break;
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case 17: /* ifOutUcastPkts */
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cur_if->opkts += *vp->val.integer;
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sprintf(cur_if->s_opkts, "%lu", cur_if->opkts);
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i = strlen(cur_if->s_opkts);
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if (i > max_opkts)
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max_opkts = i;
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break;
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case 18: /* ifOutNUcastPkts */
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cur_if->opkts += *vp->val.integer;
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sprintf(cur_if->s_opkts, "%lu", cur_if->opkts);
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i = strlen(cur_if->s_opkts);
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if (i > max_opkts)
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max_opkts = i;
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break;
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case 19: /* ifOutDiscards */
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cur_if->drops = *vp->val.integer;
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break;
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case 20: /* ifOutErrors */
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sprintf(cur_if->s_oerrs, "%lu", *vp->val.integer);
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i = strlen(cur_if->s_oerrs);
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if (i > max_oerrs)
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max_oerrs = i;
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break;
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case 21: /* ifOutQLen */
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sprintf(cur_if->s_outq, "%lu", *vp->val.integer);
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i = strlen(cur_if->s_outq);
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if (i > max_outq)
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max_outq = i;
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break;
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case 1: /* ifName */
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if (vp->val_len >= sizeof(cur_if->name))
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vp->val_len = sizeof(cur_if->name)-1;
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memmove( cur_if->name, vp->val.string, vp->val_len );
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cur_if->name[vp->val_len] = 0;
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if ((i = strlen(cur_if->name) + 1) > max_name)
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max_name = i;
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break;
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}
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}
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/*
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* XXX - Perhaps query ifXTable for additional info ??
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* (ifName/ifAlias, or HC counters)
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*/
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/*
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* If we're to monitor a particular interface, then
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* ignore all others. It would be more efficient
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* to check this earlier (as part of processing
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* the varbind list). But performing this test here
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* means we can recognise ifXTable names as well)
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*/
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if ( intrface && strcmp( cur_if->name, intrface) != 0 && strcmp( cur_if->descr, intrface) != 0) {
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SNMP_FREE( cur_if );
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}
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/*
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* Insert the IP address and network settings, and
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* add the new _if_stat structure to the list.
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*/
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if ( cur_if ) {
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if ((i = strlen(cur_if->name) + 1) > max_name)
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max_name = i;
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_set_address( cur_if );
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i = strlen(cur_if->ip);
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if (i > max_ip)
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max_ip = i;
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i = strlen(cur_if->route);
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if (i > max_route)
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max_route = i;
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if ( if_tail ) {
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if_tail->next = cur_if;
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if_tail = cur_if;
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} else {
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if_head = cur_if;
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if_tail = cur_if;
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}
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}
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} /* while (1) */
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snmp_free_varbind(var);
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/*
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* Now display the specified results (in Free-BSD format)
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* setting the field widths appropriately....
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*/
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printf("%*.*s %5.5s %*.*s %*.*s",
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-max_name, max_name, "Name", "Mtu",
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-max_route, max_route, "Network",
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-max_ip, max_ip, "Address");
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if (oflag) {
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printf(" %*s %*s", max_ibytes, "Ibytes",
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max_obytes, "Obytes");
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} else {
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printf(" %*s %*s", max_ipkts, "Ipkts",
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max_ierrs, "Ierrs");
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if (bflag)
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printf(" %*s", max_ibytes, "Ibytes");
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printf(" %*s %*s", max_opkts, "Opkts",
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max_oerrs, "Oerrs");
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if (bflag)
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printf(" %*s", max_obytes, "Obytes");
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printf(" %*s", max_outq, "Queue");
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}
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/* if (tflag)
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printf(" %s", "Time");
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*/
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if (dflag)
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printf(" %s", "Drop");
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putchar('\n');
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for (cur_if = if_head; cur_if; cur_if=cur_if->next) {
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if (cur_if->name[0] == 0)
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continue;
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printf( "%*.*s %5d", -max_name, max_name, cur_if->name, cur_if->mtu);
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printf(" %*.*s", -max_route, max_route, cur_if->route);
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printf(" %*.*s", -max_ip, max_ip, cur_if->ip);
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if (oflag) {
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printf(" %*s %*s", max_ibytes, cur_if->s_ibytes,
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max_obytes, cur_if->s_obytes);
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} else {
|
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printf(" %*s %*s", max_ipkts, cur_if->s_ipkts,
|
|
max_ierrs, cur_if->s_ierrs);
|
|
if (bflag)
|
|
printf(" %*s", max_ibytes, cur_if->s_ibytes);
|
|
|
|
printf(" %*s %*s", max_opkts, cur_if->s_opkts,
|
|
max_oerrs, cur_if->s_oerrs);
|
|
if (bflag)
|
|
printf(" %*s", max_obytes, cur_if->s_obytes);
|
|
printf(" %*s", max_outq, cur_if->s_outq);
|
|
}
|
|
/* if (tflag)
|
|
printf(" %4d", cur_if->???);
|
|
*/
|
|
if (dflag)
|
|
printf(" %4d", cur_if->drops);
|
|
putchar('\n');
|
|
}
|
|
|
|
/*
|
|
* ... and tidy up.
|
|
*/
|
|
for (cur_if = if_head; cur_if; cur_if=if_head) {
|
|
if_head=cur_if->next;
|
|
cur_if->next = NULL;
|
|
SNMP_FREE( cur_if );
|
|
}
|
|
}
|
|
|
|
|
|
#define MAXIF 100
|
|
struct iftot {
|
|
char ift_name[128]; /* interface name */
|
|
int ifIndex;
|
|
u_long ift_ip; /* input packets */
|
|
u_long ift_ib; /* input bytes */
|
|
u_long ift_ie; /* input errors */
|
|
u_long ift_op; /* output packets */
|
|
u_long ift_ob; /* output bytes */
|
|
u_long ift_oe; /* output errors */
|
|
u_long ift_co; /* collisions */
|
|
u_long ift_dr; /* drops */
|
|
};
|
|
|
|
int signalled; /* set if alarm goes off "early" */
|
|
|
|
/*
|
|
* Print a running summary of interface statistics.
|
|
* Repeat display every interval seconds, showing statistics
|
|
* collected over that interval. Assumes that interval is non-zero.
|
|
* First line printed at top of screen is always cumulative.
|
|
*/
|
|
static void
|
|
sidewaysintpr(unsigned int interval)
|
|
{
|
|
/*
|
|
* As with the "one-shot" interface display, there are
|
|
* two different possible output formats. The Net/
|
|
* Open-BSD style displays both information about a
|
|
* single interface *and* the overall totals.
|
|
* The equivalent Free-BSD approach is to report on one
|
|
* or the other (rather than both). This is probably
|
|
* more useful (IMO), and significantly more efficient.
|
|
* So that's the style implemented here.
|
|
*
|
|
* Note that the 'ifcol' OID buffer can represent a full
|
|
* instance (including ifIndex), rather than just a
|
|
* column object OID, as with the one-shot code.
|
|
*/
|
|
oid ifcol_oid[] = { 1,3,6,1,2,1,2,2,1,0,0 };
|
|
size_t ifcol_len = OID_LENGTH( ifcol_oid );
|
|
netsnmp_variable_list *var, *vp;
|
|
struct iftot *ip = NULL, *cur_if = NULL; /* single I/F display */
|
|
struct iftot *sum = NULL, *total = NULL; /* overall summary */
|
|
int line;
|
|
int first;
|
|
size_t i;
|
|
|
|
var = NULL;
|
|
if ( intrface ) {
|
|
/*
|
|
* Locate the ifIndex of the interface to monitor,
|
|
* by walking the ifDescr column of the ifTable
|
|
*/
|
|
ifcol_oid[ ifcol_len-2 ] = 2; /* ifDescr */
|
|
snmp_varlist_add_variable( &var, ifcol_oid, ifcol_len-1,
|
|
ASN_NULL, NULL, 0);
|
|
i = strlen(intrface);
|
|
netsnmp_query_walk( var, ss );
|
|
for (vp=var; vp; vp=vp->next_variable) {
|
|
if (strncmp(intrface, (char *)vp->val.string, i) == 0 &&
|
|
i == vp->val_len)
|
|
break; /* found requested interface */
|
|
}
|
|
/*
|
|
* XXX - Might be worth searching ifName/ifAlias as well
|
|
*/
|
|
if (!vp) {
|
|
oid ifname_oid[] = { 1,3,6,1,2,1,31,1,1,1,1,0 };
|
|
size_t ifname_len = OID_LENGTH( ifname_oid );
|
|
snmp_free_var( var );
|
|
var = NULL;
|
|
snmp_varlist_add_variable( &var, ifname_oid, ifname_len-1,
|
|
ASN_NULL, NULL, 0);
|
|
i = strlen(intrface);
|
|
netsnmp_query_walk( var, ss );
|
|
for (vp=var; vp; vp=vp->next_variable) {
|
|
if (strncmp(intrface, (char *)vp->val.string, i) == 0 &&
|
|
i == vp->val_len)
|
|
break; /* found requested interface */
|
|
}
|
|
}
|
|
if (!vp) {
|
|
oid ifalias_oid[] = { 1,3,6,1,2,1,31,1,1,1,18,0 };
|
|
size_t ifalias_len = OID_LENGTH( ifalias_oid );
|
|
snmp_free_var( var );
|
|
var = NULL;
|
|
snmp_varlist_add_variable( &var, ifalias_oid, ifalias_len-1,
|
|
ASN_NULL, NULL, 0);
|
|
i = strlen(intrface);
|
|
netsnmp_query_walk( var, ss );
|
|
for (vp=var; vp; vp=vp->next_variable) {
|
|
if (strncmp(intrface, (char *)vp->val.string, i) == 0 &&
|
|
i == vp->val_len)
|
|
break; /* found requested interface */
|
|
}
|
|
}
|
|
if (!vp) {
|
|
fprintf(stderr, "%s: unknown interface\n", intrface );
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* Prepare the current and previous 'iftot' structures,
|
|
* and set the ifIndex value in the OID buffer.
|
|
*/
|
|
ip = SNMP_MALLOC_TYPEDEF( struct iftot );
|
|
cur_if = SNMP_MALLOC_TYPEDEF( struct iftot );
|
|
if (!ip || !cur_if) {
|
|
fprintf(stderr, "internal error\n");
|
|
exit(1);
|
|
}
|
|
ifcol_oid[ ifcol_len-1 ] = vp->name[ ifcol_len-1 ];
|
|
snmp_free_var( var );
|
|
var = NULL;
|
|
} else {
|
|
/*
|
|
* Prepare the current and previous 'iftot' structures.
|
|
* (using different pointers, for consistency with *BSD code)
|
|
*/
|
|
sum = SNMP_MALLOC_TYPEDEF( struct iftot );
|
|
total = SNMP_MALLOC_TYPEDEF( struct iftot );
|
|
if (!sum || !total) {
|
|
fprintf(stderr, "internal error\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
timerSet( interval );
|
|
first = 1;
|
|
banner:
|
|
printf( "%17s %14s %16s", "input",
|
|
intrface ? intrface : "(Total)", "output");
|
|
putchar('\n');
|
|
printf( "%10s %5s %10s %10s %5s %10s %5s",
|
|
"packets", "errs", "bytes", "packets", "errs", "bytes", "colls");
|
|
if (dflag)
|
|
printf(" %5.5s", "drops");
|
|
putchar('\n');
|
|
fflush(stdout);
|
|
line = 0;
|
|
loop:
|
|
if ( intrface ) {
|
|
#define ADD_IFVAR( x ) ifcol_oid[ ifcol_len-2 ] = x; \
|
|
snmp_varlist_add_variable( &var, ifcol_oid, ifcol_len, ASN_NULL, NULL, 0)
|
|
/* if (bflag) { */
|
|
ADD_IFVAR( 10 ); /* ifInOctets */
|
|
ADD_IFVAR( 16 ); /* ifOutOctets */
|
|
/* } */
|
|
ADD_IFVAR( 11 ); /* ifInUcastPkts */
|
|
ADD_IFVAR( 12 ); /* ifInNUcastPkts */
|
|
ADD_IFVAR( 14 ); /* ifInErrors */
|
|
ADD_IFVAR( 17 ); /* ifOutUcastPkts */
|
|
ADD_IFVAR( 18 ); /* ifOutNUcastPkts */
|
|
ADD_IFVAR( 20 ); /* ifOutErrors */
|
|
ADD_IFVAR( 21 ); /* ifOutQLen */
|
|
if (dflag) {
|
|
ADD_IFVAR( 19 ); /* ifOutDiscards */
|
|
}
|
|
#undef ADD_IFVAR
|
|
|
|
netsnmp_query_get( var, ss ); /* Or parallel walk ?? */
|
|
cur_if->ift_ip = 0;
|
|
cur_if->ift_ib = 0;
|
|
cur_if->ift_ie = 0;
|
|
cur_if->ift_op = 0;
|
|
cur_if->ift_ob = 0;
|
|
cur_if->ift_oe = 0;
|
|
cur_if->ift_co = 0;
|
|
cur_if->ift_dr = 0;
|
|
cur_if->ifIndex = var->name[ ifcol_len-1 ];
|
|
for (vp=var; vp; vp=vp->next_variable) {
|
|
if ((var->type & 0xF0) == 0x80) /* Exception */
|
|
continue;
|
|
if ( ! vp->val.integer )
|
|
continue;
|
|
switch (vp->name[ifcol_len-2]) {
|
|
case 10: /* ifInOctets */
|
|
cur_if->ift_ib = *vp->val.integer;
|
|
break;
|
|
case 11: /* ifInUcastPkts */
|
|
cur_if->ift_ip += *vp->val.integer;
|
|
break;
|
|
case 12: /* ifInNUcastPkts */
|
|
cur_if->ift_ip += *vp->val.integer;
|
|
break;
|
|
case 14: /* ifInErrors */
|
|
cur_if->ift_ie = *vp->val.integer;
|
|
break;
|
|
case 16: /* ifOutOctets */
|
|
cur_if->ift_ob = *vp->val.integer;
|
|
break;
|
|
case 17: /* ifOutUcastPkts */
|
|
cur_if->ift_op += *vp->val.integer;
|
|
break;
|
|
case 18: /* ifOutNUcastPkts */
|
|
cur_if->ift_op += *vp->val.integer;
|
|
break;
|
|
case 19: /* ifOutDiscards */
|
|
cur_if->ift_dr = *vp->val.integer;
|
|
break;
|
|
case 20: /* ifOutErrors */
|
|
cur_if->ift_oe = *vp->val.integer;
|
|
break;
|
|
case 21: /* ifOutQLen */
|
|
cur_if->ift_co = *vp->val.integer;
|
|
break;
|
|
}
|
|
}
|
|
snmp_free_varbind( var );
|
|
var = NULL;
|
|
|
|
if (!first) {
|
|
printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
|
|
cur_if->ift_ip - ip->ift_ip,
|
|
cur_if->ift_ie - ip->ift_ie,
|
|
cur_if->ift_ib - ip->ift_ib,
|
|
cur_if->ift_op - ip->ift_op,
|
|
cur_if->ift_oe - ip->ift_oe,
|
|
cur_if->ift_ob - ip->ift_ob,
|
|
cur_if->ift_co - ip->ift_co);
|
|
if (dflag)
|
|
printf(" %5lu", cur_if->ift_dr - ip->ift_dr);
|
|
putchar('\n');
|
|
fflush(stdout);
|
|
}
|
|
ip->ift_ip = cur_if->ift_ip;
|
|
ip->ift_ie = cur_if->ift_ie;
|
|
ip->ift_ib = cur_if->ift_ib;
|
|
ip->ift_op = cur_if->ift_op;
|
|
ip->ift_oe = cur_if->ift_oe;
|
|
ip->ift_ob = cur_if->ift_ob;
|
|
ip->ift_co = cur_if->ift_co;
|
|
ip->ift_dr = cur_if->ift_dr;
|
|
} /* (single) interface */
|
|
else {
|
|
sum->ift_ip = 0;
|
|
sum->ift_ib = 0;
|
|
sum->ift_ie = 0;
|
|
sum->ift_op = 0;
|
|
sum->ift_ob = 0;
|
|
sum->ift_oe = 0;
|
|
sum->ift_co = 0;
|
|
sum->ift_dr = 0;
|
|
#define ADD_IFVAR( x ) ifcol_oid[ ifcol_len-2 ] = x; \
|
|
snmp_varlist_add_variable( &var, ifcol_oid, ifcol_len-1, ASN_NULL, NULL, 0)
|
|
ADD_IFVAR( 11 ); /* ifInUcastPkts */
|
|
ADD_IFVAR( 12 ); /* ifInNUcastPkts */
|
|
ADD_IFVAR( 14 ); /* ifInErrors */
|
|
ADD_IFVAR( 17 ); /* ifOutUcastPkts */
|
|
ADD_IFVAR( 18 ); /* ifOutNUcastPkts */
|
|
ADD_IFVAR( 20 ); /* ifOutErrors */
|
|
ADD_IFVAR( 21 ); /* ifOutQLen */
|
|
/* if (bflag) { */
|
|
ADD_IFVAR( 10 ); /* ifInOctets */
|
|
ADD_IFVAR( 16 ); /* ifOutOctets */
|
|
/* } */
|
|
if (dflag) {
|
|
ADD_IFVAR( 19 ); /* ifOutDiscards */
|
|
}
|
|
#undef ADD_IFVAR
|
|
|
|
ifcol_oid[ ifcol_len-2 ] = 11; /* ifInUcastPkts */
|
|
while ( 1 ) {
|
|
if (netsnmp_query_getnext( var, ss ) != SNMP_ERR_NOERROR)
|
|
break;
|
|
if ((var->type & 0xF0) == 0x80) /* Exception */
|
|
break;
|
|
if ( snmp_oid_compare( ifcol_oid, ifcol_len-2,
|
|
var->name, ifcol_len-2) != 0 )
|
|
break; /* End of Table */
|
|
|
|
for ( vp=var; vp; vp=vp->next_variable ) {
|
|
if ((vp->type & 0xF0) == 0x80) /* Exception */
|
|
continue;
|
|
if ( ! vp->val.integer )
|
|
continue;
|
|
switch ( vp->name[ ifcol_len-2 ] ) {
|
|
case 10: /* ifInOctets */
|
|
sum->ift_ib += *vp->val.integer;
|
|
break;
|
|
case 11: /* ifInUcastPkts */
|
|
sum->ift_ip += *vp->val.integer;
|
|
break;
|
|
case 12: /* ifInNUcastPkts */
|
|
sum->ift_ip += *vp->val.integer;
|
|
break;
|
|
case 14: /* ifInErrors */
|
|
sum->ift_ie += *vp->val.integer;
|
|
break;
|
|
case 16: /* ifOutOctets */
|
|
sum->ift_ob += *vp->val.integer;
|
|
break;
|
|
case 17: /* ifOutUcastPkts */
|
|
sum->ift_op += *vp->val.integer;
|
|
break;
|
|
case 18: /* ifOutNUcastPkts */
|
|
sum->ift_op += *vp->val.integer;
|
|
break;
|
|
case 19: /* ifOutDiscards */
|
|
sum->ift_dr += *vp->val.integer;
|
|
break;
|
|
case 20: /* ifOutErrors */
|
|
sum->ift_oe += *vp->val.integer;
|
|
break;
|
|
case 21: /* ifOutQLen */
|
|
sum->ift_co += *vp->val.integer;
|
|
break;
|
|
}
|
|
}
|
|
/*
|
|
* Now loop to retrieve the next entry from the table.
|
|
*/
|
|
} /* while (1) */
|
|
|
|
snmp_free_varbind( var );
|
|
var = NULL;
|
|
|
|
if (!first) {
|
|
printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
|
|
sum->ift_ip - total->ift_ip,
|
|
sum->ift_ie - total->ift_ie,
|
|
sum->ift_ib - total->ift_ib,
|
|
sum->ift_op - total->ift_op,
|
|
sum->ift_oe - total->ift_oe,
|
|
sum->ift_ob - total->ift_ob,
|
|
sum->ift_co - total->ift_co);
|
|
if (dflag)
|
|
printf(" %5lu", sum->ift_dr - total->ift_dr);
|
|
putchar('\n');
|
|
fflush(stdout);
|
|
}
|
|
total->ift_ip = sum->ift_ip;
|
|
total->ift_ie = sum->ift_ie;
|
|
total->ift_ib = sum->ift_ib;
|
|
total->ift_op = sum->ift_op;
|
|
total->ift_oe = sum->ift_oe;
|
|
total->ift_ob = sum->ift_ob;
|
|
total->ift_co = sum->ift_co;
|
|
total->ift_dr = sum->ift_dr;
|
|
} /* overall summary */
|
|
|
|
timerPause();
|
|
timerSet(interval);
|
|
line++;
|
|
first = 0;
|
|
if (line == 21)
|
|
goto banner;
|
|
else
|
|
goto loop;
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
|
|
/*
|
|
* timerSet sets or resets the timer to fire in "interval" seconds.
|
|
* timerPause waits only if the timer has not fired.
|
|
* timing precision is not considered important.
|
|
*/
|
|
|
|
#if (defined(WIN32) || defined(cygwin))
|
|
static int sav_int;
|
|
static time_t timezup;
|
|
static void
|
|
timerSet(int interval_seconds)
|
|
{
|
|
sav_int = interval_seconds;
|
|
timezup = time(0) + interval_seconds;
|
|
}
|
|
|
|
/*
|
|
* you can do better than this !
|
|
*/
|
|
static void
|
|
timerPause(void)
|
|
{
|
|
time_t now;
|
|
while (time(&now) < timezup)
|
|
#ifdef WIN32
|
|
Sleep(400);
|
|
#else
|
|
{
|
|
struct timeval tx;
|
|
tx.tv_sec = 0;
|
|
tx.tv_usec = 400 * 1000; /* 400 milliseconds */
|
|
select(0, 0, 0, 0, &tx);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#else
|
|
|
|
/*
|
|
* Called if an interval expires before sidewaysintpr has completed a loop.
|
|
* Sets a flag to not wait for the alarm.
|
|
*/
|
|
RETSIGTYPE
|
|
catchalarm(int sig)
|
|
{
|
|
signalled = YES;
|
|
}
|
|
|
|
static void
|
|
timerSet(int interval_seconds)
|
|
{
|
|
#ifdef HAVE_SIGSET
|
|
(void) sigset(SIGALRM, catchalarm);
|
|
#else
|
|
(void) signal(SIGALRM, catchalarm);
|
|
#endif
|
|
signalled = NO;
|
|
(void) alarm(interval_seconds);
|
|
}
|
|
|
|
static void
|
|
timerPause(void)
|
|
{
|
|
#ifdef HAVE_SIGHOLD
|
|
sighold(SIGALRM);
|
|
if (!signalled) {
|
|
sigpause(SIGALRM);
|
|
}
|
|
#else
|
|
int oldmask;
|
|
oldmask = sigblock(sigmask(SIGALRM));
|
|
if (!signalled) {
|
|
sigpause(0);
|
|
}
|
|
sigsetmask(oldmask);
|
|
#endif
|
|
}
|
|
|
|
#endif /* !WIN32 && !cygwin */
|