This reverts commit2c24ad3377
. This change causes some commands to fail, for example when working with renamed interfaces or when trying to list a nonexistent interface by name. PR: 269042 Reported by: dbaio, Michael Paepcke <bugs.fbsd@paepcke.de> MFC with:2c24ad3377
1835 lines
44 KiB
C
1835 lines
44 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1983, 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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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1983, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#if 0
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static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/module.h>
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#include <sys/linker.h>
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#include <sys/nv.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_types.h>
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#include <net/route.h>
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/* IP */
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <fnmatch.h>
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#include <ifaddrs.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 <fcntl.h>
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#ifdef JAIL
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#include <jail.h>
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#endif
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <libifconfig.h>
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#include "ifconfig.h"
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ifconfig_handle_t *lifh;
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/*
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* Since "struct ifreq" is composed of various union members, callers
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* should pay special attention to interpret the value.
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* (.e.g. little/big endian difference in the structure.)
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*/
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struct ifreq ifr;
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char name[IFNAMSIZ];
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char *descr = NULL;
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size_t descrlen = 64;
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int setaddr;
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int setmask;
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int doalias;
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int clearaddr;
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int newaddr = 1;
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int verbose;
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int noload;
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int printifname = 0;
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int supmedia = 0;
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int printkeys = 0; /* Print keying material for interfaces. */
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int exit_code = 0;
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/* Formatter Strings */
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char *f_inet, *f_inet6, *f_ether, *f_addr;
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static bool group_member(const char *ifname, const char *match,
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const char *nomatch);
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static int ifconfig(int argc, char *const *argv, int iscreate,
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const struct afswtch *afp);
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static void status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
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struct ifaddrs *ifa);
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static void tunnel_status(int s);
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static _Noreturn void usage(void);
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static int getifflags(const char *ifname, int us, bool err_ok);
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static struct afswtch *af_getbyname(const char *name);
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static struct afswtch *af_getbyfamily(int af);
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static void af_other_status(int);
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void printifnamemaybe(void);
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static struct option *opts = NULL;
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struct ifa_order_elt {
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int if_order;
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int af_orders[255];
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struct ifaddrs *ifa;
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TAILQ_ENTRY(ifa_order_elt) link;
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};
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TAILQ_HEAD(ifa_queue, ifa_order_elt);
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static struct module_map_entry {
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const char *ifname;
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const char *kldname;
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} module_map[] = {
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{
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.ifname = "tun",
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.kldname = "if_tuntap",
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},
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{
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.ifname = "tap",
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.kldname = "if_tuntap",
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},
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{
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.ifname = "vmnet",
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.kldname = "if_tuntap",
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},
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{
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.ifname = "ipsec",
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.kldname = "ipsec",
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},
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{
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/*
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* This mapping exists because there is a conflicting enc module
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* in CAM. ifconfig's guessing behavior will attempt to match
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* the ifname to a module as well as if_${ifname} and clash with
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* CAM enc. This is an assertion of the correct module to load.
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*/
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.ifname = "enc",
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.kldname = "if_enc",
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},
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};
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void
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opt_register(struct option *p)
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{
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p->next = opts;
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opts = p;
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}
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static void
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usage(void)
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{
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char options[1024];
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struct option *p;
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/* XXX not right but close enough for now */
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options[0] = '\0';
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for (p = opts; p != NULL; p = p->next) {
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strlcat(options, p->opt_usage, sizeof(options));
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strlcat(options, " ", sizeof(options));
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}
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fprintf(stderr,
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"usage: ifconfig [-f type:format] %sinterface address_family\n"
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" [address [dest_address]] [parameters]\n"
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" ifconfig interface create\n"
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" ifconfig -a %s[-d] [-m] [-u] [-v] [address_family]\n"
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" ifconfig -l [-d] [-u] [address_family]\n"
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" ifconfig %s[-d] [-m] [-u] [-v]\n",
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options, options, options);
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exit(1);
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}
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void
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ioctl_ifcreate(int s, struct ifreq *ifr)
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{
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if (ioctl(s, SIOCIFCREATE2, ifr) < 0) {
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switch (errno) {
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case EEXIST:
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errx(1, "interface %s already exists", ifr->ifr_name);
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default:
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err(1, "SIOCIFCREATE2 (%s)", ifr->ifr_name);
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}
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}
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}
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static int
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calcorders(struct ifaddrs *ifa, struct ifa_queue *q)
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{
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struct ifaddrs *prev;
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struct ifa_order_elt *cur;
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unsigned int ord, af, ifa_ord;
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prev = NULL;
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cur = NULL;
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ord = 0;
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ifa_ord = 0;
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while (ifa != NULL) {
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if (prev == NULL ||
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strcmp(ifa->ifa_name, prev->ifa_name) != 0) {
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cur = calloc(1, sizeof(*cur));
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if (cur == NULL)
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return (-1);
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TAILQ_INSERT_TAIL(q, cur, link);
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cur->if_order = ifa_ord ++;
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cur->ifa = ifa;
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ord = 0;
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}
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if (ifa->ifa_addr) {
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af = ifa->ifa_addr->sa_family;
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if (af < nitems(cur->af_orders) &&
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cur->af_orders[af] == 0)
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cur->af_orders[af] = ++ord;
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}
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prev = ifa;
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ifa = ifa->ifa_next;
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}
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return (0);
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}
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static int
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cmpifaddrs(struct ifaddrs *a, struct ifaddrs *b, struct ifa_queue *q)
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{
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struct ifa_order_elt *cur, *e1, *e2;
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unsigned int af1, af2;
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int ret;
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e1 = e2 = NULL;
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ret = strcmp(a->ifa_name, b->ifa_name);
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if (ret != 0) {
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TAILQ_FOREACH(cur, q, link) {
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if (e1 && e2)
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break;
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if (strcmp(cur->ifa->ifa_name, a->ifa_name) == 0)
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e1 = cur;
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else if (strcmp(cur->ifa->ifa_name, b->ifa_name) == 0)
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e2 = cur;
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}
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if (!e1 || !e2)
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return (0);
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else
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return (e1->if_order - e2->if_order);
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} else if (a->ifa_addr != NULL && b->ifa_addr != NULL) {
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TAILQ_FOREACH(cur, q, link) {
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if (strcmp(cur->ifa->ifa_name, a->ifa_name) == 0) {
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e1 = cur;
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break;
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}
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}
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if (!e1)
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return (0);
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af1 = a->ifa_addr->sa_family;
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af2 = b->ifa_addr->sa_family;
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if (af1 < nitems(e1->af_orders) && af2 < nitems(e1->af_orders))
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return (e1->af_orders[af1] - e1->af_orders[af2]);
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}
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return (0);
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}
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static void freeformat(void)
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{
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if (f_inet != NULL)
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free(f_inet);
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if (f_inet6 != NULL)
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free(f_inet6);
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if (f_ether != NULL)
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free(f_ether);
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if (f_addr != NULL)
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free(f_addr);
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}
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static void setformat(char *input)
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{
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char *formatstr, *category, *modifier;
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formatstr = strdup(input);
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while ((category = strsep(&formatstr, ",")) != NULL) {
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modifier = strchr(category, ':');
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if (modifier == NULL || modifier[1] == '\0') {
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warnx("Skipping invalid format specification: %s\n",
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category);
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continue;
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}
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/* Split the string on the separator, then seek past it */
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modifier[0] = '\0';
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modifier++;
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if (strcmp(category, "addr") == 0)
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f_addr = strdup(modifier);
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else if (strcmp(category, "ether") == 0)
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f_ether = strdup(modifier);
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else if (strcmp(category, "inet") == 0)
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f_inet = strdup(modifier);
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else if (strcmp(category, "inet6") == 0)
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f_inet6 = strdup(modifier);
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}
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free(formatstr);
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}
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static struct ifaddrs *
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sortifaddrs(struct ifaddrs *list,
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int (*compare)(struct ifaddrs *, struct ifaddrs *, struct ifa_queue *),
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struct ifa_queue *q)
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{
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struct ifaddrs *right, *temp, *last, *result, *next, *tail;
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right = list;
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temp = list;
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last = list;
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result = NULL;
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next = NULL;
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tail = NULL;
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if (!list || !list->ifa_next)
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return (list);
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while (temp && temp->ifa_next) {
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last = right;
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right = right->ifa_next;
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temp = temp->ifa_next->ifa_next;
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}
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last->ifa_next = NULL;
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list = sortifaddrs(list, compare, q);
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right = sortifaddrs(right, compare, q);
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while (list || right) {
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if (!right) {
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next = list;
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list = list->ifa_next;
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} else if (!list) {
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next = right;
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right = right->ifa_next;
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} else if (compare(list, right, q) <= 0) {
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next = list;
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list = list->ifa_next;
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} else {
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next = right;
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right = right->ifa_next;
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}
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if (!result)
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result = next;
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else
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tail->ifa_next = next;
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tail = next;
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}
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return (result);
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}
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void printifnamemaybe()
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{
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if (printifname)
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printf("%s\n", name);
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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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int c, all, namesonly, downonly, uponly;
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const struct afswtch *afp = NULL;
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int ifindex;
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struct ifaddrs *ifap, *sifap, *ifa;
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struct ifreq paifr;
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const struct sockaddr_dl *sdl;
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char options[1024], *cp, *envformat, *namecp = NULL;
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struct ifa_queue q = TAILQ_HEAD_INITIALIZER(q);
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struct ifa_order_elt *cur, *tmp;
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const char *ifname, *matchgroup, *nogroup;
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struct option *p;
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size_t iflen;
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int flags;
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all = downonly = uponly = namesonly = noload = verbose = 0;
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f_inet = f_inet6 = f_ether = f_addr = NULL;
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matchgroup = nogroup = NULL;
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lifh = ifconfig_open();
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if (lifh == NULL)
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err(EXIT_FAILURE, "ifconfig_open");
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envformat = getenv("IFCONFIG_FORMAT");
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if (envformat != NULL)
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setformat(envformat);
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/*
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* Ensure we print interface name when expected to,
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* even if we terminate early due to error.
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*/
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atexit(printifnamemaybe);
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|
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/* Parse leading line options */
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strlcpy(options, "G:adf:klmnuv", sizeof(options));
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for (p = opts; p != NULL; p = p->next)
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strlcat(options, p->opt, sizeof(options));
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while ((c = getopt(argc, argv, options)) != -1) {
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switch (c) {
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case 'a': /* scan all interfaces */
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all++;
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break;
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case 'd': /* restrict scan to "down" interfaces */
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downonly++;
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break;
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case 'f':
|
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if (optarg == NULL)
|
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usage();
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setformat(optarg);
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break;
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case 'G':
|
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if (optarg == NULL || all == 0)
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usage();
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nogroup = optarg;
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break;
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case 'k':
|
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printkeys++;
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break;
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case 'l': /* scan interface names only */
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namesonly++;
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break;
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case 'm': /* show media choices in status */
|
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supmedia = 1;
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break;
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case 'n': /* suppress module loading */
|
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noload++;
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break;
|
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case 'u': /* restrict scan to "up" interfaces */
|
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uponly++;
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break;
|
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case 'v':
|
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verbose++;
|
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break;
|
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case 'g':
|
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if (all) {
|
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if (optarg == NULL)
|
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usage();
|
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matchgroup = optarg;
|
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break;
|
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}
|
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/* FALLTHROUGH */
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default:
|
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for (p = opts; p != NULL; p = p->next)
|
|
if (p->opt[0] == c) {
|
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p->cb(optarg);
|
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break;
|
|
}
|
|
if (p == NULL)
|
|
usage();
|
|
break;
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
/* -l cannot be used with -a or -m */
|
|
if (namesonly && (all || supmedia))
|
|
usage();
|
|
|
|
/* nonsense.. */
|
|
if (uponly && downonly)
|
|
usage();
|
|
|
|
/* no arguments is equivalent to '-a' */
|
|
if (!namesonly && argc < 1)
|
|
all = 1;
|
|
|
|
/* -a and -l allow an address family arg to limit the output */
|
|
if (all || namesonly) {
|
|
if (argc > 1)
|
|
usage();
|
|
|
|
ifname = NULL;
|
|
ifindex = 0;
|
|
if (argc == 1) {
|
|
afp = af_getbyname(*argv);
|
|
if (afp == NULL) {
|
|
warnx("Address family '%s' unknown.", *argv);
|
|
usage();
|
|
}
|
|
if (afp->af_name != NULL)
|
|
argc--, argv++;
|
|
/* leave with afp non-zero */
|
|
}
|
|
} else {
|
|
/* not listing, need an argument */
|
|
if (argc < 1)
|
|
usage();
|
|
|
|
ifname = *argv;
|
|
argc--, argv++;
|
|
|
|
/* check and maybe load support for this interface */
|
|
ifmaybeload(ifname);
|
|
|
|
ifindex = if_nametoindex(ifname);
|
|
if (ifindex == 0) {
|
|
/*
|
|
* NOTE: We must special-case the `create' command
|
|
* right here as we would otherwise fail when trying
|
|
* to find the interface.
|
|
*/
|
|
if (argc > 0 && (strcmp(argv[0], "create") == 0 ||
|
|
strcmp(argv[0], "plumb") == 0)) {
|
|
iflen = strlcpy(name, ifname, sizeof(name));
|
|
if (iflen >= sizeof(name))
|
|
errx(1, "%s: cloning name too long",
|
|
ifname);
|
|
ifconfig(argc, argv, 1, NULL);
|
|
exit(exit_code);
|
|
}
|
|
#ifdef JAIL
|
|
/*
|
|
* NOTE: We have to special-case the `-vnet' command
|
|
* right here as we would otherwise fail when trying
|
|
* to find the interface as it lives in another vnet.
|
|
*/
|
|
if (argc > 0 && (strcmp(argv[0], "-vnet") == 0)) {
|
|
iflen = strlcpy(name, ifname, sizeof(name));
|
|
if (iflen >= sizeof(name))
|
|
errx(1, "%s: interface name too long",
|
|
ifname);
|
|
ifconfig(argc, argv, 0, NULL);
|
|
exit(exit_code);
|
|
}
|
|
#endif
|
|
errx(1, "interface %s does not exist", ifname);
|
|
} else {
|
|
/*
|
|
* Do not allow use `create` command as hostname if
|
|
* address family is not specified.
|
|
*/
|
|
if (argc > 0 && (strcmp(argv[0], "create") == 0 ||
|
|
strcmp(argv[0], "plumb") == 0)) {
|
|
if (argc == 1)
|
|
errx(1, "interface %s already exists",
|
|
ifname);
|
|
argc--, argv++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Check for address family */
|
|
if (argc > 0) {
|
|
afp = af_getbyname(*argv);
|
|
if (afp != NULL)
|
|
argc--, argv++;
|
|
}
|
|
|
|
/*
|
|
* Check for a requested configuration action on a single interface,
|
|
* which doesn't require building, sorting, and searching the entire
|
|
* system address list
|
|
*/
|
|
if ((argc > 0) && (ifname != NULL)) {
|
|
iflen = strlcpy(name, ifname, sizeof(name));
|
|
if (iflen >= sizeof(name)) {
|
|
warnx("%s: interface name too long, skipping", ifname);
|
|
} else {
|
|
flags = getifflags(name, -1, false);
|
|
if (!(((flags & IFF_CANTCONFIG) != 0) ||
|
|
(downonly && (flags & IFF_UP) != 0) ||
|
|
(uponly && (flags & IFF_UP) == 0)))
|
|
ifconfig(argc, argv, 0, afp);
|
|
}
|
|
goto done;
|
|
}
|
|
|
|
if (getifaddrs(&ifap) != 0)
|
|
err(EXIT_FAILURE, "getifaddrs");
|
|
|
|
cp = NULL;
|
|
|
|
if (calcorders(ifap, &q) != 0)
|
|
err(EXIT_FAILURE, "calcorders");
|
|
|
|
sifap = sortifaddrs(ifap, cmpifaddrs, &q);
|
|
|
|
TAILQ_FOREACH_SAFE(cur, &q, link, tmp)
|
|
free(cur);
|
|
|
|
ifindex = 0;
|
|
for (ifa = sifap; ifa; ifa = ifa->ifa_next) {
|
|
memset(&paifr, 0, sizeof(paifr));
|
|
strlcpy(paifr.ifr_name, ifa->ifa_name, sizeof(paifr.ifr_name));
|
|
if (sizeof(paifr.ifr_addr) >= ifa->ifa_addr->sa_len) {
|
|
memcpy(&paifr.ifr_addr, ifa->ifa_addr,
|
|
ifa->ifa_addr->sa_len);
|
|
}
|
|
|
|
if (ifname != NULL && strcmp(ifname, ifa->ifa_name) != 0)
|
|
continue;
|
|
if (ifa->ifa_addr->sa_family == AF_LINK)
|
|
sdl = (const struct sockaddr_dl *) ifa->ifa_addr;
|
|
else
|
|
sdl = NULL;
|
|
if (cp != NULL && strcmp(cp, ifa->ifa_name) == 0 && !namesonly)
|
|
continue;
|
|
iflen = strlcpy(name, ifa->ifa_name, sizeof(name));
|
|
if (iflen >= sizeof(name)) {
|
|
warnx("%s: interface name too long, skipping",
|
|
ifa->ifa_name);
|
|
continue;
|
|
}
|
|
cp = ifa->ifa_name;
|
|
|
|
if ((ifa->ifa_flags & IFF_CANTCONFIG) != 0)
|
|
continue;
|
|
if (downonly && (ifa->ifa_flags & IFF_UP) != 0)
|
|
continue;
|
|
if (uponly && (ifa->ifa_flags & IFF_UP) == 0)
|
|
continue;
|
|
if (!group_member(ifa->ifa_name, matchgroup, nogroup))
|
|
continue;
|
|
/*
|
|
* Are we just listing the interfaces?
|
|
*/
|
|
if (namesonly) {
|
|
if (namecp == cp)
|
|
continue;
|
|
if (afp != NULL) {
|
|
/* special case for "ether" address family */
|
|
if (!strcmp(afp->af_name, "ether")) {
|
|
if (sdl == NULL ||
|
|
(sdl->sdl_type != IFT_ETHER &&
|
|
sdl->sdl_type != IFT_L2VLAN &&
|
|
sdl->sdl_type != IFT_BRIDGE) ||
|
|
sdl->sdl_alen != ETHER_ADDR_LEN)
|
|
continue;
|
|
} else {
|
|
if (ifa->ifa_addr->sa_family
|
|
!= afp->af_af)
|
|
continue;
|
|
}
|
|
}
|
|
namecp = cp;
|
|
ifindex++;
|
|
if (ifindex > 1)
|
|
printf(" ");
|
|
fputs(name, stdout);
|
|
continue;
|
|
}
|
|
ifindex++;
|
|
|
|
if (argc > 0)
|
|
ifconfig(argc, argv, 0, afp);
|
|
else
|
|
status(afp, sdl, ifa);
|
|
}
|
|
if (namesonly)
|
|
printf("\n");
|
|
freeifaddrs(ifap);
|
|
|
|
done:
|
|
freeformat();
|
|
ifconfig_close(lifh);
|
|
exit(exit_code);
|
|
}
|
|
|
|
/*
|
|
* Returns true if an interface should be listed because any its groups
|
|
* matches shell pattern "match" and none of groups matches pattern "nomatch".
|
|
* If any pattern is NULL, corresponding condition is skipped.
|
|
*/
|
|
static bool
|
|
group_member(const char *ifname, const char *match, const char *nomatch)
|
|
{
|
|
static int sock = -1;
|
|
|
|
struct ifgroupreq ifgr;
|
|
struct ifg_req *ifg;
|
|
int len;
|
|
bool matched, nomatched;
|
|
|
|
/* Sanity checks. */
|
|
if (match == NULL && nomatch == NULL)
|
|
return (true);
|
|
if (ifname == NULL)
|
|
return (false);
|
|
|
|
memset(&ifgr, 0, sizeof(ifgr));
|
|
strlcpy(ifgr.ifgr_name, ifname, IFNAMSIZ);
|
|
|
|
/* The socket is opened once. Let _exit() close it. */
|
|
if (sock == -1) {
|
|
sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
|
|
if (sock == -1)
|
|
errx(1, "%s: socket(AF_LOCAL,SOCK_DGRAM)", __func__);
|
|
}
|
|
|
|
/* Determine amount of memory for the list of groups. */
|
|
if (ioctl(sock, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) {
|
|
if (errno == EINVAL || errno == ENOTTY)
|
|
return (false);
|
|
else
|
|
errx(1, "%s: SIOCGIFGROUP", __func__);
|
|
}
|
|
|
|
/* Obtain the list of groups. */
|
|
len = ifgr.ifgr_len;
|
|
ifgr.ifgr_groups =
|
|
(struct ifg_req *)calloc(len / sizeof(*ifg), sizeof(*ifg));
|
|
|
|
if (ifgr.ifgr_groups == NULL)
|
|
errx(1, "%s: no memory", __func__);
|
|
if (ioctl(sock, SIOCGIFGROUP, (caddr_t)&ifgr) == -1)
|
|
errx(1, "%s: SIOCGIFGROUP", __func__);
|
|
|
|
/* Perform matching. */
|
|
matched = false;
|
|
nomatched = true;
|
|
for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(*ifg); ifg++) {
|
|
len -= sizeof(struct ifg_req);
|
|
if (match)
|
|
matched |= !fnmatch(match, ifg->ifgrq_group, 0);
|
|
if (nomatch)
|
|
nomatched &= fnmatch(nomatch, ifg->ifgrq_group, 0);
|
|
}
|
|
free(ifgr.ifgr_groups);
|
|
|
|
if (match && !nomatch)
|
|
return (matched);
|
|
if (!match && nomatch)
|
|
return (nomatched);
|
|
return (matched && nomatched);
|
|
}
|
|
|
|
static struct afswtch *afs = NULL;
|
|
|
|
void
|
|
af_register(struct afswtch *p)
|
|
{
|
|
p->af_next = afs;
|
|
afs = p;
|
|
}
|
|
|
|
static struct afswtch *
|
|
af_getbyname(const char *name)
|
|
{
|
|
struct afswtch *afp;
|
|
|
|
for (afp = afs; afp != NULL; afp = afp->af_next)
|
|
if (strcmp(afp->af_name, name) == 0)
|
|
return afp;
|
|
return NULL;
|
|
}
|
|
|
|
static struct afswtch *
|
|
af_getbyfamily(int af)
|
|
{
|
|
struct afswtch *afp;
|
|
|
|
for (afp = afs; afp != NULL; afp = afp->af_next)
|
|
if (afp->af_af == af)
|
|
return afp;
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
af_other_status(int s)
|
|
{
|
|
struct afswtch *afp;
|
|
uint8_t afmask[howmany(AF_MAX, NBBY)];
|
|
|
|
memset(afmask, 0, sizeof(afmask));
|
|
for (afp = afs; afp != NULL; afp = afp->af_next) {
|
|
if (afp->af_other_status == NULL)
|
|
continue;
|
|
if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
|
|
continue;
|
|
afp->af_other_status(s);
|
|
setbit(afmask, afp->af_af);
|
|
}
|
|
}
|
|
|
|
static void
|
|
af_all_tunnel_status(int s)
|
|
{
|
|
struct afswtch *afp;
|
|
uint8_t afmask[howmany(AF_MAX, NBBY)];
|
|
|
|
memset(afmask, 0, sizeof(afmask));
|
|
for (afp = afs; afp != NULL; afp = afp->af_next) {
|
|
if (afp->af_status_tunnel == NULL)
|
|
continue;
|
|
if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
|
|
continue;
|
|
afp->af_status_tunnel(s);
|
|
setbit(afmask, afp->af_af);
|
|
}
|
|
}
|
|
|
|
static struct cmd *cmds = NULL;
|
|
|
|
void
|
|
cmd_register(struct cmd *p)
|
|
{
|
|
p->c_next = cmds;
|
|
cmds = p;
|
|
}
|
|
|
|
static const struct cmd *
|
|
cmd_lookup(const char *name, int iscreate)
|
|
{
|
|
const struct cmd *p;
|
|
|
|
for (p = cmds; p != NULL; p = p->c_next)
|
|
if (strcmp(name, p->c_name) == 0) {
|
|
if (iscreate) {
|
|
if (p->c_iscloneop)
|
|
return p;
|
|
} else {
|
|
if (!p->c_iscloneop)
|
|
return p;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
struct callback {
|
|
callback_func *cb_func;
|
|
void *cb_arg;
|
|
struct callback *cb_next;
|
|
};
|
|
static struct callback *callbacks = NULL;
|
|
|
|
void
|
|
callback_register(callback_func *func, void *arg)
|
|
{
|
|
struct callback *cb;
|
|
|
|
cb = malloc(sizeof(struct callback));
|
|
if (cb == NULL)
|
|
errx(1, "unable to allocate memory for callback");
|
|
cb->cb_func = func;
|
|
cb->cb_arg = arg;
|
|
cb->cb_next = callbacks;
|
|
callbacks = cb;
|
|
}
|
|
|
|
/* specially-handled commands */
|
|
static void setifaddr(const char *, int, int, const struct afswtch *);
|
|
static const struct cmd setifaddr_cmd = DEF_CMD("ifaddr", 0, setifaddr);
|
|
|
|
static void setifdstaddr(const char *, int, int, const struct afswtch *);
|
|
static const struct cmd setifdstaddr_cmd =
|
|
DEF_CMD("ifdstaddr", 0, setifdstaddr);
|
|
|
|
static int
|
|
ifconfig(int argc, char *const *argv, int iscreate, const struct afswtch *uafp)
|
|
{
|
|
const struct afswtch *afp, *nafp;
|
|
const struct cmd *p;
|
|
struct callback *cb;
|
|
int s;
|
|
|
|
strlcpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
|
|
afp = NULL;
|
|
if (uafp != NULL)
|
|
afp = uafp;
|
|
/*
|
|
* This is the historical "accident" allowing users to configure IPv4
|
|
* addresses without the "inet" keyword which while a nice feature has
|
|
* proven to complicate other things. We cannot remove this but only
|
|
* make sure we will never have a similar implicit default for IPv6 or
|
|
* any other address familiy. We need a fallback though for
|
|
* ifconfig IF up/down etc. to work without INET support as people
|
|
* never used ifconfig IF link up/down, etc. either.
|
|
*/
|
|
#ifndef RESCUE
|
|
#ifdef INET
|
|
if (afp == NULL && feature_present("inet"))
|
|
afp = af_getbyname("inet");
|
|
#endif
|
|
#endif
|
|
if (afp == NULL)
|
|
afp = af_getbyname("link");
|
|
if (afp == NULL) {
|
|
warnx("Please specify an address_family.");
|
|
usage();
|
|
}
|
|
top:
|
|
ifr.ifr_addr.sa_family =
|
|
afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ?
|
|
AF_LOCAL : afp->af_af;
|
|
|
|
if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 &&
|
|
(uafp != NULL || errno != EAFNOSUPPORT ||
|
|
(s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0))
|
|
err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
|
|
|
|
while (argc > 0) {
|
|
p = cmd_lookup(*argv, iscreate);
|
|
if (iscreate && p == NULL) {
|
|
/*
|
|
* Push the clone create callback so the new
|
|
* device is created and can be used for any
|
|
* remaining arguments.
|
|
*/
|
|
cb = callbacks;
|
|
if (cb == NULL)
|
|
errx(1, "internal error, no callback");
|
|
callbacks = cb->cb_next;
|
|
cb->cb_func(s, cb->cb_arg);
|
|
iscreate = 0;
|
|
/*
|
|
* Handle any address family spec that
|
|
* immediately follows and potentially
|
|
* recreate the socket.
|
|
*/
|
|
nafp = af_getbyname(*argv);
|
|
if (nafp != NULL) {
|
|
argc--, argv++;
|
|
if (nafp != afp) {
|
|
close(s);
|
|
afp = nafp;
|
|
goto top;
|
|
}
|
|
}
|
|
/*
|
|
* Look for a normal parameter.
|
|
*/
|
|
continue;
|
|
}
|
|
if (p == NULL) {
|
|
/*
|
|
* Not a recognized command, choose between setting
|
|
* the interface address and the dst address.
|
|
*/
|
|
p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
|
|
}
|
|
if (p->c_parameter == NEXTARG && p->c_u.c_func) {
|
|
if (argv[1] == NULL)
|
|
errx(1, "'%s' requires argument",
|
|
p->c_name);
|
|
p->c_u.c_func(argv[1], 0, s, afp);
|
|
argc--, argv++;
|
|
} else if (p->c_parameter == OPTARG && p->c_u.c_func) {
|
|
p->c_u.c_func(argv[1], 0, s, afp);
|
|
if (argv[1] != NULL)
|
|
argc--, argv++;
|
|
} else if (p->c_parameter == NEXTARG2 && p->c_u.c_func2) {
|
|
if (argc < 3)
|
|
errx(1, "'%s' requires 2 arguments",
|
|
p->c_name);
|
|
p->c_u.c_func2(argv[1], argv[2], s, afp);
|
|
argc -= 2, argv += 2;
|
|
} else if (p->c_parameter == SPARAM && p->c_u.c_func3) {
|
|
p->c_u.c_func3(*argv, p->c_sparameter, s, afp);
|
|
} else if (p->c_u.c_func)
|
|
p->c_u.c_func(*argv, p->c_parameter, s, afp);
|
|
argc--, argv++;
|
|
}
|
|
|
|
/*
|
|
* Do any post argument processing required by the address family.
|
|
*/
|
|
if (afp->af_postproc != NULL)
|
|
afp->af_postproc(s, afp, newaddr, getifflags(name, s, true));
|
|
/*
|
|
* Do deferred callbacks registered while processing
|
|
* command-line arguments.
|
|
*/
|
|
for (cb = callbacks; cb != NULL; cb = cb->cb_next)
|
|
cb->cb_func(s, cb->cb_arg);
|
|
/*
|
|
* Do deferred operations.
|
|
*/
|
|
if (clearaddr) {
|
|
if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
|
|
warnx("interface %s cannot change %s addresses!",
|
|
name, afp->af_name);
|
|
clearaddr = 0;
|
|
}
|
|
}
|
|
if (clearaddr) {
|
|
int ret;
|
|
strlcpy(((struct ifreq *)afp->af_ridreq)->ifr_name, name,
|
|
sizeof ifr.ifr_name);
|
|
ret = ioctl(s, afp->af_difaddr, afp->af_ridreq);
|
|
if (ret < 0) {
|
|
if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
|
|
/* means no previous address for interface */
|
|
} else
|
|
Perror("ioctl (SIOCDIFADDR)");
|
|
}
|
|
}
|
|
if (newaddr) {
|
|
if (afp->af_addreq == NULL || afp->af_aifaddr == 0) {
|
|
warnx("interface %s cannot change %s addresses!",
|
|
name, afp->af_name);
|
|
newaddr = 0;
|
|
}
|
|
}
|
|
if (newaddr && (setaddr || setmask)) {
|
|
strlcpy(((struct ifreq *)afp->af_addreq)->ifr_name, name,
|
|
sizeof ifr.ifr_name);
|
|
if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
|
|
Perror("ioctl (SIOCAIFADDR)");
|
|
}
|
|
|
|
close(s);
|
|
return(0);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
static void
|
|
setifaddr(const char *addr, int param, int s, const struct afswtch *afp)
|
|
{
|
|
if (afp->af_getaddr == NULL)
|
|
return;
|
|
/*
|
|
* Delay the ioctl to set the interface addr until flags are all set.
|
|
* The address interpretation may depend on the flags,
|
|
* and the flags may change when the address is set.
|
|
*/
|
|
setaddr++;
|
|
if (doalias == 0 && afp->af_af != AF_LINK)
|
|
clearaddr = 1;
|
|
afp->af_getaddr(addr, (doalias >= 0 ? ADDR : RIDADDR));
|
|
}
|
|
|
|
static void
|
|
settunnel(const char *src, const char *dst, int s, const struct afswtch *afp)
|
|
{
|
|
struct addrinfo *srcres, *dstres;
|
|
int ecode;
|
|
|
|
if (afp->af_settunnel == NULL) {
|
|
warn("address family %s does not support tunnel setup",
|
|
afp->af_name);
|
|
return;
|
|
}
|
|
|
|
if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0)
|
|
errx(1, "error in parsing address string: %s",
|
|
gai_strerror(ecode));
|
|
|
|
if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0)
|
|
errx(1, "error in parsing address string: %s",
|
|
gai_strerror(ecode));
|
|
|
|
if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family)
|
|
errx(1,
|
|
"source and destination address families do not match");
|
|
|
|
afp->af_settunnel(s, srcres, dstres);
|
|
|
|
freeaddrinfo(srcres);
|
|
freeaddrinfo(dstres);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
deletetunnel(const char *vname, int param, int s, const struct afswtch *afp)
|
|
{
|
|
|
|
if (ioctl(s, SIOCDIFPHYADDR, &ifr) < 0)
|
|
err(1, "SIOCDIFPHYADDR");
|
|
}
|
|
|
|
#ifdef JAIL
|
|
static void
|
|
setifvnet(const char *jname, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
struct ifreq my_ifr;
|
|
|
|
memcpy(&my_ifr, &ifr, sizeof(my_ifr));
|
|
my_ifr.ifr_jid = jail_getid(jname);
|
|
if (my_ifr.ifr_jid < 0)
|
|
errx(1, "%s", jail_errmsg);
|
|
if (ioctl(s, SIOCSIFVNET, &my_ifr) < 0)
|
|
err(1, "SIOCSIFVNET");
|
|
}
|
|
|
|
static void
|
|
setifrvnet(const char *jname, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
struct ifreq my_ifr;
|
|
|
|
memcpy(&my_ifr, &ifr, sizeof(my_ifr));
|
|
my_ifr.ifr_jid = jail_getid(jname);
|
|
if (my_ifr.ifr_jid < 0)
|
|
errx(1, "%s", jail_errmsg);
|
|
if (ioctl(s, SIOCSIFRVNET, &my_ifr) < 0)
|
|
err(1, "SIOCSIFRVNET(%d, %s)", my_ifr.ifr_jid, my_ifr.ifr_name);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
setifnetmask(const char *addr, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
if (afp->af_getaddr != NULL) {
|
|
setmask++;
|
|
afp->af_getaddr(addr, MASK);
|
|
}
|
|
}
|
|
|
|
static void
|
|
setifbroadaddr(const char *addr, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
if (afp->af_getaddr != NULL)
|
|
afp->af_getaddr(addr, DSTADDR);
|
|
}
|
|
|
|
static void
|
|
notealias(const char *addr, int param, int s, const struct afswtch *afp)
|
|
{
|
|
#define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
|
|
if (setaddr && doalias == 0 && param < 0)
|
|
if (afp->af_addreq != NULL && afp->af_ridreq != NULL)
|
|
bcopy((caddr_t)rqtosa(af_addreq),
|
|
(caddr_t)rqtosa(af_ridreq),
|
|
rqtosa(af_addreq)->sa_len);
|
|
doalias = param;
|
|
if (param < 0) {
|
|
clearaddr = 1;
|
|
newaddr = 0;
|
|
} else
|
|
clearaddr = 0;
|
|
#undef rqtosa
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
static void
|
|
setifdstaddr(const char *addr, int param __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
if (afp->af_getaddr != NULL)
|
|
afp->af_getaddr(addr, DSTADDR);
|
|
}
|
|
|
|
static int
|
|
getifflags(const char *ifname, int us, bool err_ok)
|
|
{
|
|
struct ifreq my_ifr;
|
|
int s;
|
|
|
|
memset(&my_ifr, 0, sizeof(my_ifr));
|
|
(void) strlcpy(my_ifr.ifr_name, ifname, sizeof(my_ifr.ifr_name));
|
|
if (us < 0) {
|
|
if ((s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0)
|
|
err(1, "socket(family AF_LOCAL,SOCK_DGRAM");
|
|
} else
|
|
s = us;
|
|
if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
|
|
if (!err_ok) {
|
|
Perror("ioctl (SIOCGIFFLAGS)");
|
|
exit(1);
|
|
}
|
|
}
|
|
if (us < 0)
|
|
close(s);
|
|
return ((my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16));
|
|
}
|
|
|
|
/*
|
|
* Note: doing an SIOCIGIFFLAGS scribbles on the union portion
|
|
* of the ifreq structure, which may confuse other parts of ifconfig.
|
|
* Make a private copy so we can avoid that.
|
|
*/
|
|
static void
|
|
setifflags(const char *vname, int value, int s, const struct afswtch *afp)
|
|
{
|
|
struct ifreq my_ifr;
|
|
int flags;
|
|
|
|
flags = getifflags(name, s, false);
|
|
if (value < 0) {
|
|
value = -value;
|
|
flags &= ~value;
|
|
} else
|
|
flags |= value;
|
|
memset(&my_ifr, 0, sizeof(my_ifr));
|
|
(void) strlcpy(my_ifr.ifr_name, name, sizeof(my_ifr.ifr_name));
|
|
my_ifr.ifr_flags = flags & 0xffff;
|
|
my_ifr.ifr_flagshigh = flags >> 16;
|
|
if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
|
|
Perror(vname);
|
|
}
|
|
|
|
void
|
|
setifcap(const char *vname, int value, int s, const struct afswtch *afp)
|
|
{
|
|
int flags;
|
|
|
|
if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) < 0) {
|
|
Perror("ioctl (SIOCGIFCAP)");
|
|
exit(1);
|
|
}
|
|
flags = ifr.ifr_curcap;
|
|
if (value < 0) {
|
|
value = -value;
|
|
flags &= ~value;
|
|
} else
|
|
flags |= value;
|
|
flags &= ifr.ifr_reqcap;
|
|
/* Check for no change in capabilities. */
|
|
if (ifr.ifr_curcap == flags)
|
|
return;
|
|
ifr.ifr_reqcap = flags;
|
|
if (ioctl(s, SIOCSIFCAP, (caddr_t)&ifr) < 0)
|
|
Perror(vname);
|
|
}
|
|
|
|
void
|
|
setifcapnv(const char *vname, const char *arg, int s, const struct afswtch *afp)
|
|
{
|
|
nvlist_t *nvcap;
|
|
void *buf;
|
|
char *marg, *mopt;
|
|
size_t nvbuflen;
|
|
bool neg;
|
|
|
|
if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) < 0)
|
|
Perror("ioctl (SIOCGIFCAP)");
|
|
if ((ifr.ifr_curcap & IFCAP_NV) == 0) {
|
|
warnx("IFCAP_NV not supported");
|
|
return; /* Not exit() */
|
|
}
|
|
|
|
marg = strdup(arg);
|
|
if (marg == NULL)
|
|
Perror("strdup");
|
|
nvcap = nvlist_create(0);
|
|
if (nvcap == NULL)
|
|
Perror("nvlist_create");
|
|
while ((mopt = strsep(&marg, ",")) != NULL) {
|
|
neg = *mopt == '-';
|
|
if (neg)
|
|
mopt++;
|
|
if (strcmp(mopt, "rxtls") == 0) {
|
|
nvlist_add_bool(nvcap, "rxtls4", !neg);
|
|
nvlist_add_bool(nvcap, "rxtls6", !neg);
|
|
} else {
|
|
nvlist_add_bool(nvcap, mopt, !neg);
|
|
}
|
|
}
|
|
buf = nvlist_pack(nvcap, &nvbuflen);
|
|
if (buf == NULL) {
|
|
errx(1, "nvlist_pack error");
|
|
exit(1);
|
|
}
|
|
ifr.ifr_cap_nv.buf_length = ifr.ifr_cap_nv.length = nvbuflen;
|
|
ifr.ifr_cap_nv.buffer = buf;
|
|
if (ioctl(s, SIOCSIFCAPNV, (caddr_t)&ifr) < 0)
|
|
Perror(vname);
|
|
free(buf);
|
|
nvlist_destroy(nvcap);
|
|
free(marg);
|
|
}
|
|
|
|
static void
|
|
setifmetric(const char *val, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
strlcpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
|
|
ifr.ifr_metric = atoi(val);
|
|
if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
|
|
err(1, "ioctl SIOCSIFMETRIC (set metric)");
|
|
}
|
|
|
|
static void
|
|
setifmtu(const char *val, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
strlcpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
|
|
ifr.ifr_mtu = atoi(val);
|
|
if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0)
|
|
err(1, "ioctl SIOCSIFMTU (set mtu)");
|
|
}
|
|
|
|
static void
|
|
setifpcp(const char *val, int arg __unused, int s, const struct afswtch *afp)
|
|
{
|
|
u_long ul;
|
|
char *endp;
|
|
|
|
ul = strtoul(val, &endp, 0);
|
|
if (*endp != '\0')
|
|
errx(1, "invalid value for pcp");
|
|
if (ul > 7)
|
|
errx(1, "value for pcp out of range");
|
|
ifr.ifr_lan_pcp = ul;
|
|
if (ioctl(s, SIOCSLANPCP, (caddr_t)&ifr) == -1)
|
|
err(1, "SIOCSLANPCP");
|
|
}
|
|
|
|
static void
|
|
disableifpcp(const char *val, int arg __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
|
|
ifr.ifr_lan_pcp = IFNET_PCP_NONE;
|
|
if (ioctl(s, SIOCSLANPCP, (caddr_t)&ifr) == -1)
|
|
err(1, "SIOCSLANPCP");
|
|
}
|
|
|
|
static void
|
|
setifname(const char *val, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
char *newname;
|
|
|
|
strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
|
|
|
|
newname = strdup(val);
|
|
if (newname == NULL)
|
|
err(1, "no memory to set ifname");
|
|
ifr.ifr_data = newname;
|
|
if (ioctl(s, SIOCSIFNAME, (caddr_t)&ifr) < 0) {
|
|
free(newname);
|
|
err(1, "ioctl SIOCSIFNAME (set name)");
|
|
}
|
|
printifname = 1;
|
|
strlcpy(name, newname, sizeof(name));
|
|
free(newname);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
setifdescr(const char *val, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
char *newdescr;
|
|
|
|
strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
|
|
|
|
ifr.ifr_buffer.length = strlen(val) + 1;
|
|
if (ifr.ifr_buffer.length == 1) {
|
|
ifr.ifr_buffer.buffer = newdescr = NULL;
|
|
ifr.ifr_buffer.length = 0;
|
|
} else {
|
|
newdescr = strdup(val);
|
|
ifr.ifr_buffer.buffer = newdescr;
|
|
if (newdescr == NULL) {
|
|
warn("no memory to set ifdescr");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (ioctl(s, SIOCSIFDESCR, (caddr_t)&ifr) < 0)
|
|
err(1, "ioctl SIOCSIFDESCR (set descr)");
|
|
|
|
free(newdescr);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
unsetifdescr(const char *val, int value, int s, const struct afswtch *afp)
|
|
{
|
|
|
|
setifdescr("", 0, s, 0);
|
|
}
|
|
|
|
#define IFFBITS \
|
|
"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\7RUNNING" \
|
|
"\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
|
|
"\20MULTICAST\22PPROMISC\23MONITOR\24STATICARP\25STICKYARP"
|
|
|
|
#define IFCAPBITS \
|
|
"\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING" \
|
|
"\10VLAN_HWCSUM\11TSO4\12TSO6\13LRO\14WOL_UCAST\15WOL_MCAST\16WOL_MAGIC" \
|
|
"\17TOE4\20TOE6\21VLAN_HWFILTER\23VLAN_HWTSO\24LINKSTATE\25NETMAP" \
|
|
"\26RXCSUM_IPV6\27TXCSUM_IPV6\31TXRTLMT\32HWRXTSTMP\33NOMAP\34TXTLS4\35TXTLS6" \
|
|
"\36VXLAN_HWCSUM\37VXLAN_HWTSO\40TXTLS_RTLMT"
|
|
|
|
/*
|
|
* Print the status of the interface. If an address family was
|
|
* specified, show only it; otherwise, show them all.
|
|
*/
|
|
static void
|
|
status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
|
|
struct ifaddrs *ifa)
|
|
{
|
|
struct ifaddrs *ift;
|
|
struct ifstat ifs;
|
|
nvlist_t *nvcap;
|
|
const char *nvname;
|
|
void *buf, *cookie;
|
|
int allfamilies, s, type;
|
|
bool first, val;
|
|
|
|
if (afp == NULL) {
|
|
allfamilies = 1;
|
|
ifr.ifr_addr.sa_family = AF_LOCAL;
|
|
} else {
|
|
allfamilies = 0;
|
|
ifr.ifr_addr.sa_family =
|
|
afp->af_af == AF_LINK ? AF_LOCAL : afp->af_af;
|
|
}
|
|
strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
|
|
|
|
s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0);
|
|
if (s < 0)
|
|
err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
|
|
|
|
printf("%s: ", name);
|
|
printb("flags", ifa->ifa_flags, IFFBITS);
|
|
if (ioctl(s, SIOCGIFMETRIC, &ifr) != -1)
|
|
printf(" metric %d", ifr.ifr_metric);
|
|
if (ioctl(s, SIOCGIFMTU, &ifr) != -1)
|
|
printf(" mtu %d", ifr.ifr_mtu);
|
|
putchar('\n');
|
|
|
|
for (;;) {
|
|
if ((descr = reallocf(descr, descrlen)) != NULL) {
|
|
ifr.ifr_buffer.buffer = descr;
|
|
ifr.ifr_buffer.length = descrlen;
|
|
if (ioctl(s, SIOCGIFDESCR, &ifr) == 0) {
|
|
if (ifr.ifr_buffer.buffer == descr) {
|
|
if (strlen(descr) > 0)
|
|
printf("\tdescription: %s\n",
|
|
descr);
|
|
} else if (ifr.ifr_buffer.length > descrlen) {
|
|
descrlen = ifr.ifr_buffer.length;
|
|
continue;
|
|
}
|
|
}
|
|
} else
|
|
warn("unable to allocate memory for interface"
|
|
"description");
|
|
break;
|
|
}
|
|
|
|
if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) == 0) {
|
|
if ((ifr.ifr_curcap & IFCAP_NV) != 0) {
|
|
buf = malloc(IFR_CAP_NV_MAXBUFSIZE);
|
|
if (buf == NULL)
|
|
Perror("malloc");
|
|
ifr.ifr_cap_nv.buffer = buf;
|
|
ifr.ifr_cap_nv.buf_length = IFR_CAP_NV_MAXBUFSIZE;
|
|
if (ioctl(s, SIOCGIFCAPNV, (caddr_t)&ifr) != 0)
|
|
Perror("ioctl (SIOCGIFCAPNV)");
|
|
nvcap = nvlist_unpack(ifr.ifr_cap_nv.buffer,
|
|
ifr.ifr_cap_nv.length, 0);
|
|
if (nvcap == NULL)
|
|
Perror("nvlist_unpack");
|
|
printf("\toptions");
|
|
cookie = NULL;
|
|
for (first = true;; first = false) {
|
|
nvname = nvlist_next(nvcap, &type, &cookie);
|
|
if (nvname == NULL) {
|
|
printf("\n");
|
|
break;
|
|
}
|
|
if (type == NV_TYPE_BOOL) {
|
|
val = nvlist_get_bool(nvcap, nvname);
|
|
if (val) {
|
|
printf("%c%s",
|
|
first ? ' ' : ',', nvname);
|
|
}
|
|
}
|
|
}
|
|
if (supmedia) {
|
|
printf("\tcapabilities");
|
|
cookie = NULL;
|
|
for (first = true;; first = false) {
|
|
nvname = nvlist_next(nvcap, &type,
|
|
&cookie);
|
|
if (nvname == NULL) {
|
|
printf("\n");
|
|
break;
|
|
}
|
|
if (type == NV_TYPE_BOOL)
|
|
printf("%c%s", first ? ' ' :
|
|
',', nvname);
|
|
}
|
|
}
|
|
nvlist_destroy(nvcap);
|
|
free(buf);
|
|
|
|
if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) != 0)
|
|
Perror("ioctl (SIOCGIFCAP)");
|
|
} else if (ifr.ifr_curcap != 0) {
|
|
printb("\toptions", ifr.ifr_curcap, IFCAPBITS);
|
|
putchar('\n');
|
|
if (supmedia && ifr.ifr_reqcap != 0) {
|
|
printb("\tcapabilities", ifr.ifr_reqcap,
|
|
IFCAPBITS);
|
|
putchar('\n');
|
|
}
|
|
}
|
|
}
|
|
|
|
tunnel_status(s);
|
|
|
|
for (ift = ifa; ift != NULL; ift = ift->ifa_next) {
|
|
if (ift->ifa_addr == NULL)
|
|
continue;
|
|
if (strcmp(ifa->ifa_name, ift->ifa_name) != 0)
|
|
continue;
|
|
if (allfamilies) {
|
|
const struct afswtch *p;
|
|
p = af_getbyfamily(ift->ifa_addr->sa_family);
|
|
if (p != NULL && p->af_status != NULL)
|
|
p->af_status(s, ift);
|
|
} else if (afp->af_af == ift->ifa_addr->sa_family)
|
|
afp->af_status(s, ift);
|
|
}
|
|
#if 0
|
|
if (allfamilies || afp->af_af == AF_LINK) {
|
|
const struct afswtch *lafp;
|
|
|
|
/*
|
|
* Hack; the link level address is received separately
|
|
* from the routing information so any address is not
|
|
* handled above. Cobble together an entry and invoke
|
|
* the status method specially.
|
|
*/
|
|
lafp = af_getbyname("lladdr");
|
|
if (lafp != NULL) {
|
|
info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl;
|
|
lafp->af_status(s, &info);
|
|
}
|
|
}
|
|
#endif
|
|
if (allfamilies)
|
|
af_other_status(s);
|
|
else if (afp->af_other_status != NULL)
|
|
afp->af_other_status(s);
|
|
|
|
strlcpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
|
|
if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
|
|
printf("%s", ifs.ascii);
|
|
|
|
if (verbose > 0)
|
|
sfp_status(s, &ifr, verbose);
|
|
|
|
close(s);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
tunnel_status(int s)
|
|
{
|
|
af_all_tunnel_status(s);
|
|
}
|
|
|
|
void
|
|
Perror(const char *cmd)
|
|
{
|
|
switch (errno) {
|
|
|
|
case ENXIO:
|
|
errx(1, "%s: no such interface", cmd);
|
|
break;
|
|
|
|
case EPERM:
|
|
errx(1, "%s: permission denied", cmd);
|
|
break;
|
|
|
|
default:
|
|
err(1, "%s", cmd);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Print a value a la the %b format of the kernel's printf
|
|
*/
|
|
void
|
|
printb(const char *s, unsigned v, const char *bits)
|
|
{
|
|
int i, any = 0;
|
|
char c;
|
|
|
|
if (bits && *bits == 8)
|
|
printf("%s=%o", s, v);
|
|
else
|
|
printf("%s=%x", s, v);
|
|
if (bits) {
|
|
bits++;
|
|
putchar('<');
|
|
while ((i = *bits++) != '\0') {
|
|
if (v & (1u << (i-1))) {
|
|
if (any)
|
|
putchar(',');
|
|
any = 1;
|
|
for (; (c = *bits) > 32; bits++)
|
|
putchar(c);
|
|
} else
|
|
for (; *bits > 32; bits++)
|
|
;
|
|
}
|
|
putchar('>');
|
|
}
|
|
}
|
|
|
|
void
|
|
print_vhid(const struct ifaddrs *ifa, const char *s)
|
|
{
|
|
struct if_data *ifd;
|
|
|
|
if (ifa->ifa_data == NULL)
|
|
return;
|
|
|
|
ifd = ifa->ifa_data;
|
|
if (ifd->ifi_vhid == 0)
|
|
return;
|
|
|
|
printf(" vhid %d", ifd->ifi_vhid);
|
|
}
|
|
|
|
void
|
|
ifmaybeload(const char *name)
|
|
{
|
|
#define MOD_PREFIX_LEN 3 /* "if_" */
|
|
struct module_stat mstat;
|
|
int i, fileid, modid;
|
|
char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp;
|
|
const char *cp;
|
|
struct module_map_entry *mme;
|
|
bool found;
|
|
|
|
/* loading suppressed by the user */
|
|
if (noload)
|
|
return;
|
|
|
|
/* trim the interface number off the end */
|
|
strlcpy(ifname, name, sizeof(ifname));
|
|
for (dp = ifname; *dp != 0; dp++)
|
|
if (isdigit(*dp)) {
|
|
*dp = 0;
|
|
break;
|
|
}
|
|
|
|
/* Either derive it from the map or guess otherwise */
|
|
*ifkind = '\0';
|
|
found = false;
|
|
for (i = 0; i < nitems(module_map); ++i) {
|
|
mme = &module_map[i];
|
|
if (strcmp(mme->ifname, ifname) == 0) {
|
|
strlcpy(ifkind, mme->kldname, sizeof(ifkind));
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* We didn't have an alias for it... we'll guess. */
|
|
if (!found) {
|
|
/* turn interface and unit into module name */
|
|
strlcpy(ifkind, "if_", sizeof(ifkind));
|
|
strlcat(ifkind, ifname, sizeof(ifkind));
|
|
}
|
|
|
|
/* scan files in kernel */
|
|
mstat.version = sizeof(struct module_stat);
|
|
for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
|
|
/* scan modules in file */
|
|
for (modid = kldfirstmod(fileid); modid > 0;
|
|
modid = modfnext(modid)) {
|
|
if (modstat(modid, &mstat) < 0)
|
|
continue;
|
|
/* strip bus name if present */
|
|
if ((cp = strchr(mstat.name, '/')) != NULL) {
|
|
cp++;
|
|
} else {
|
|
cp = mstat.name;
|
|
}
|
|
/*
|
|
* Is it already loaded? Don't compare with ifname if
|
|
* we were specifically told which kld to use. Doing
|
|
* so could lead to conflicts not trivially solved.
|
|
*/
|
|
if ((!found && strcmp(ifname, cp) == 0) ||
|
|
strcmp(ifkind, cp) == 0)
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Try to load the module. But ignore failures, because ifconfig can't
|
|
* infer the names of all drivers (eg mlx4en(4)).
|
|
*/
|
|
(void) kldload(ifkind);
|
|
}
|
|
|
|
static struct cmd basic_cmds[] = {
|
|
DEF_CMD("up", IFF_UP, setifflags),
|
|
DEF_CMD("down", -IFF_UP, setifflags),
|
|
DEF_CMD("arp", -IFF_NOARP, setifflags),
|
|
DEF_CMD("-arp", IFF_NOARP, setifflags),
|
|
DEF_CMD("debug", IFF_DEBUG, setifflags),
|
|
DEF_CMD("-debug", -IFF_DEBUG, setifflags),
|
|
DEF_CMD_ARG("description", setifdescr),
|
|
DEF_CMD_ARG("descr", setifdescr),
|
|
DEF_CMD("-description", 0, unsetifdescr),
|
|
DEF_CMD("-descr", 0, unsetifdescr),
|
|
DEF_CMD("promisc", IFF_PPROMISC, setifflags),
|
|
DEF_CMD("-promisc", -IFF_PPROMISC, setifflags),
|
|
DEF_CMD("add", IFF_UP, notealias),
|
|
DEF_CMD("alias", IFF_UP, notealias),
|
|
DEF_CMD("-alias", -IFF_UP, notealias),
|
|
DEF_CMD("delete", -IFF_UP, notealias),
|
|
DEF_CMD("remove", -IFF_UP, notealias),
|
|
#ifdef notdef
|
|
#define EN_SWABIPS 0x1000
|
|
DEF_CMD("swabips", EN_SWABIPS, setifflags),
|
|
DEF_CMD("-swabips", -EN_SWABIPS, setifflags),
|
|
#endif
|
|
DEF_CMD_ARG("netmask", setifnetmask),
|
|
DEF_CMD_ARG("metric", setifmetric),
|
|
DEF_CMD_ARG("broadcast", setifbroadaddr),
|
|
DEF_CMD_ARG2("tunnel", settunnel),
|
|
DEF_CMD("-tunnel", 0, deletetunnel),
|
|
DEF_CMD("deletetunnel", 0, deletetunnel),
|
|
#ifdef JAIL
|
|
DEF_CMD_ARG("vnet", setifvnet),
|
|
DEF_CMD_ARG("-vnet", setifrvnet),
|
|
#endif
|
|
DEF_CMD("link0", IFF_LINK0, setifflags),
|
|
DEF_CMD("-link0", -IFF_LINK0, setifflags),
|
|
DEF_CMD("link1", IFF_LINK1, setifflags),
|
|
DEF_CMD("-link1", -IFF_LINK1, setifflags),
|
|
DEF_CMD("link2", IFF_LINK2, setifflags),
|
|
DEF_CMD("-link2", -IFF_LINK2, setifflags),
|
|
DEF_CMD("monitor", IFF_MONITOR, setifflags),
|
|
DEF_CMD("-monitor", -IFF_MONITOR, setifflags),
|
|
DEF_CMD("mextpg", IFCAP_MEXTPG, setifcap),
|
|
DEF_CMD("-mextpg", -IFCAP_MEXTPG, setifcap),
|
|
DEF_CMD("staticarp", IFF_STATICARP, setifflags),
|
|
DEF_CMD("-staticarp", -IFF_STATICARP, setifflags),
|
|
DEF_CMD("stickyarp", IFF_STICKYARP, setifflags),
|
|
DEF_CMD("-stickyarp", -IFF_STICKYARP, setifflags),
|
|
DEF_CMD("rxcsum6", IFCAP_RXCSUM_IPV6, setifcap),
|
|
DEF_CMD("-rxcsum6", -IFCAP_RXCSUM_IPV6, setifcap),
|
|
DEF_CMD("txcsum6", IFCAP_TXCSUM_IPV6, setifcap),
|
|
DEF_CMD("-txcsum6", -IFCAP_TXCSUM_IPV6, setifcap),
|
|
DEF_CMD("rxcsum", IFCAP_RXCSUM, setifcap),
|
|
DEF_CMD("-rxcsum", -IFCAP_RXCSUM, setifcap),
|
|
DEF_CMD("txcsum", IFCAP_TXCSUM, setifcap),
|
|
DEF_CMD("-txcsum", -IFCAP_TXCSUM, setifcap),
|
|
DEF_CMD("netcons", IFCAP_NETCONS, setifcap),
|
|
DEF_CMD("-netcons", -IFCAP_NETCONS, setifcap),
|
|
DEF_CMD_ARG("pcp", setifpcp),
|
|
DEF_CMD("-pcp", 0, disableifpcp),
|
|
DEF_CMD("polling", IFCAP_POLLING, setifcap),
|
|
DEF_CMD("-polling", -IFCAP_POLLING, setifcap),
|
|
DEF_CMD("tso6", IFCAP_TSO6, setifcap),
|
|
DEF_CMD("-tso6", -IFCAP_TSO6, setifcap),
|
|
DEF_CMD("tso4", IFCAP_TSO4, setifcap),
|
|
DEF_CMD("-tso4", -IFCAP_TSO4, setifcap),
|
|
DEF_CMD("tso", IFCAP_TSO, setifcap),
|
|
DEF_CMD("-tso", -IFCAP_TSO, setifcap),
|
|
DEF_CMD("toe", IFCAP_TOE, setifcap),
|
|
DEF_CMD("-toe", -IFCAP_TOE, setifcap),
|
|
DEF_CMD("lro", IFCAP_LRO, setifcap),
|
|
DEF_CMD("-lro", -IFCAP_LRO, setifcap),
|
|
DEF_CMD("txtls", IFCAP_TXTLS, setifcap),
|
|
DEF_CMD("-txtls", -IFCAP_TXTLS, setifcap),
|
|
DEF_CMD_SARG("rxtls", IFCAP2_RXTLS4_NAME "," IFCAP2_RXTLS6_NAME,
|
|
setifcapnv),
|
|
DEF_CMD_SARG("-rxtls", "-"IFCAP2_RXTLS4_NAME ",-" IFCAP2_RXTLS6_NAME,
|
|
setifcapnv),
|
|
DEF_CMD("wol", IFCAP_WOL, setifcap),
|
|
DEF_CMD("-wol", -IFCAP_WOL, setifcap),
|
|
DEF_CMD("wol_ucast", IFCAP_WOL_UCAST, setifcap),
|
|
DEF_CMD("-wol_ucast", -IFCAP_WOL_UCAST, setifcap),
|
|
DEF_CMD("wol_mcast", IFCAP_WOL_MCAST, setifcap),
|
|
DEF_CMD("-wol_mcast", -IFCAP_WOL_MCAST, setifcap),
|
|
DEF_CMD("wol_magic", IFCAP_WOL_MAGIC, setifcap),
|
|
DEF_CMD("-wol_magic", -IFCAP_WOL_MAGIC, setifcap),
|
|
DEF_CMD("txrtlmt", IFCAP_TXRTLMT, setifcap),
|
|
DEF_CMD("-txrtlmt", -IFCAP_TXRTLMT, setifcap),
|
|
DEF_CMD("txtlsrtlmt", IFCAP_TXTLS_RTLMT, setifcap),
|
|
DEF_CMD("-txtlsrtlmt", -IFCAP_TXTLS_RTLMT, setifcap),
|
|
DEF_CMD("hwrxtstmp", IFCAP_HWRXTSTMP, setifcap),
|
|
DEF_CMD("-hwrxtstmp", -IFCAP_HWRXTSTMP, setifcap),
|
|
DEF_CMD("normal", -IFF_LINK0, setifflags),
|
|
DEF_CMD("compress", IFF_LINK0, setifflags),
|
|
DEF_CMD("noicmp", IFF_LINK1, setifflags),
|
|
DEF_CMD_ARG("mtu", setifmtu),
|
|
DEF_CMD_ARG("name", setifname),
|
|
};
|
|
|
|
static __constructor void
|
|
ifconfig_ctor(void)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < nitems(basic_cmds); i++)
|
|
cmd_register(&basic_cmds[i]);
|
|
}
|