freebsd-dev/sbin/ifconfig/ifmac.c
Sam Leffler 5faf8dcb55 Overhaul to cleanup some of the tangled logic that's grown over the years.
o break per-address family support out into separate files
o modularize per-address family and functional operations using
  a registration mechanism; this permits configuration according
  to which files you include (but beware that order of the files
  is important to insure backwards compatibility)
o many cleanups to eliminate incestuous behaviour, global variables,
  and poor coding practices (still much more to fix)

The original motivation of this work was to support dynamic addition
of functionality based on the interface so we can eliminate the various
little control programs and so that vendors can distribute ifconfig
plugins that support their in-kernel code.  That work is still to be
completed.

o Update 802.11 support for all the new net80211 functionality; some
  of these operations (e.g. list *) may be better suited in a different
  program
2004-12-08 19:18:07 +00:00

122 lines
3.3 KiB
C

/*-
* Copyright (c) 2001 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed for the FreeBSD Project by NAI Labs, the
* Security Research Division of Network Associates, Inc. under
* DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA
* CHATS research program.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/mac.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <net/if.h>
#include <net/route.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ifconfig.h"
static void
maclabel_status(int s, const struct rt_addrinfo *info)
{
struct ifreq ifr;
mac_t label;
char *label_text;
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (mac_prepare_ifnet_label(&label) == -1)
return;
ifr.ifr_ifru.ifru_data = (void *)label;
if (ioctl(s, SIOCGIFMAC, &ifr) == -1)
goto mac_free;
if (mac_to_text(label, &label_text) == -1)
goto mac_free;
if (strlen(label_text) != 0)
printf("\tmaclabel %s\n", label_text);
free(label_text);
mac_free:
mac_free(label);
}
static void
setifmaclabel(const char *val, int d, int s, const struct afswtch *rafp)
{
struct ifreq ifr;
mac_t label;
int error;
if (mac_from_text(&label, val) == -1) {
perror(val);
return;
}
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
ifr.ifr_ifru.ifru_data = (void *)label;
error = ioctl(s, SIOCSIFMAC, &ifr);
mac_free(label);
if (error == -1)
perror("setifmac");
}
static struct cmd mac_cmds[] = {
DEF_CMD_ARG("maclabel", setifmaclabel),
};
static struct afswtch af_mac = {
.af_name = "af_maclabel",
.af_af = AF_UNSPEC,
.af_status = maclabel_status,
};
static __constructor void
mac_ctor(void)
{
#define N(a) (sizeof(a) / sizeof(a[0]))
int i;
for (i = 0; i < N(mac_cmds); i++)
cmd_register(&mac_cmds[i]);
af_register(&af_mac);
#undef N
}