162 lines
3.7 KiB
C
162 lines
3.7 KiB
C
/* $NetBSD: agr.c,v 1.3 2005/03/19 17:31:48 thorpej Exp $ */
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/*-
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* Copyright (c)2005 YAMAMOTO Takashi,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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#if !defined(lint)
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__RCSID("$NetBSD: agr.c,v 1.3 2005/03/19 17:31:48 thorpej Exp $");
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#endif /* !defined(lint) */
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <net/if.h>
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#include <net/agr/if_agrioctl.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <util.h>
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#include "extern.h"
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#include "agr.h"
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static int checkifname(const char *);
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static void assertifname(const char *);
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static int
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checkifname(const char *ifname)
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{
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return strncmp(ifname, "agr", 3) != 0 ||
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!isdigit((unsigned char)ifname[3]);
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}
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static void
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assertifname(const char *ifname)
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{
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if (checkifname(ifname)) {
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errx(EXIT_FAILURE, "valid only with agr(4) interfaces");
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}
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}
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void
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agraddport(const char *val, int d)
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{
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struct agrreq ar;
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assertifname(ifr.ifr_name);
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memset(&ar, 0, sizeof(ar));
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ar.ar_version = AGRREQ_VERSION;
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ar.ar_cmd = AGRCMD_ADDPORT;
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ar.ar_buf = __UNCONST(val);
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ar.ar_buflen = strlen(val);
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ifr.ifr_data = (void *)&ar;
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if (ioctl(s, SIOCSETAGR, &ifr) == -1) {
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err(EXIT_FAILURE, "SIOCSETAGR");
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}
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}
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void
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agrremport(const char *val, int d)
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{
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struct agrreq ar;
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assertifname(ifr.ifr_name);
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memset(&ar, 0, sizeof(ar));
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ar.ar_version = AGRREQ_VERSION;
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ar.ar_cmd = AGRCMD_REMPORT;
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ar.ar_buf = __UNCONST(val);
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ar.ar_buflen = strlen(val);
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ifr.ifr_data = (void *)&ar;
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if (ioctl(s, SIOCSETAGR, &ifr) == -1) {
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err(EXIT_FAILURE, "SIOCSETAGR");
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}
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}
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void
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agr_status()
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{
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struct agrreq ar;
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void *buf = NULL;
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size_t buflen = 0;
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struct agrportlist *apl;
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struct agrportinfo *api;
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int i;
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if (checkifname(ifr.ifr_name)) {
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return;
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}
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again:
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memset(&ar, 0, sizeof(ar));
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ar.ar_version = AGRREQ_VERSION;
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ar.ar_cmd = AGRCMD_PORTLIST;
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ar.ar_buf = buf;
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ar.ar_buflen = buflen;
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ifr.ifr_data = (void *)&ar;
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if (ioctl(s, SIOCGETAGR, &ifr) == -1) {
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if (errno != E2BIG) {
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warn("SIOCGETAGR");
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return;
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}
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free(buf);
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buf = NULL;
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buflen = 0;
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goto again;
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}
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if (buf == NULL) {
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buflen = ar.ar_buflen;
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buf = malloc(buflen);
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if (buf == NULL) {
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err(EXIT_FAILURE, "agr_status");
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}
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goto again;
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}
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apl = buf;
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api = (void *)(apl + 1);
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for (i = 0; i < apl->apl_nports; i++) {
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char tmp[256];
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snprintb(tmp, sizeof(tmp), AGRPORTINFO_BITS, api->api_flags);
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printf("\tagrport: %s, flags=%s\n", api->api_ifname, tmp);
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api++;
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}
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}
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