5faf8dcb55
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
156 lines
4.1 KiB
C
156 lines
4.1 KiB
C
/*
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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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* 4. 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 rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <err.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 "ifconfig.h"
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static void
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list_cloners(void)
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{
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struct if_clonereq ifcr;
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char *cp, *buf;
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int idx;
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int s;
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s = socket(AF_INET, SOCK_DGRAM, 0);
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if (s == -1)
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err(1, "socket(AF_INET,SOCK_DGRAM)");
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memset(&ifcr, 0, sizeof(ifcr));
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if (ioctl(s, SIOCIFGCLONERS, &ifcr) < 0)
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err(1, "SIOCIFGCLONERS for count");
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buf = malloc(ifcr.ifcr_total * IFNAMSIZ);
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if (buf == NULL)
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err(1, "unable to allocate cloner name buffer");
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ifcr.ifcr_count = ifcr.ifcr_total;
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ifcr.ifcr_buffer = buf;
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if (ioctl(s, SIOCIFGCLONERS, &ifcr) < 0)
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err(1, "SIOCIFGCLONERS for names");
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/*
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* In case some disappeared in the mean time, clamp it down.
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*/
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if (ifcr.ifcr_count > ifcr.ifcr_total)
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ifcr.ifcr_count = ifcr.ifcr_total;
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for (cp = buf, idx = 0; idx < ifcr.ifcr_count; idx++, cp += IFNAMSIZ) {
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if (idx > 0)
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putchar(' ');
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printf("%s", cp);
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}
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putchar('\n');
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free(buf);
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}
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void
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clone_create(void)
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{
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int s;
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s = socket(AF_INET, SOCK_DGRAM, 0);
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if (s == -1)
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err(1, "socket(AF_INET,SOCK_DGRAM)");
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memset(&ifr, 0, sizeof(ifr));
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(void) strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
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if (ioctl(s, SIOCIFCREATE, &ifr) < 0)
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err(1, "SIOCIFCREATE");
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/*
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* If we get a different name back then we put in, we probably
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* want to print it out, but we might change our mind later so
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* we just signal our intrest and leave the printout for later.
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*/
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if (strcmp(name, ifr.ifr_name) != 0) {
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printname = 1;
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strlcpy(name, ifr.ifr_name, sizeof(name));
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}
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close(s);
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}
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static void
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clone_destroy(const char *val, int d, int s, const struct afswtch *rafp)
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{
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(void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
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if (ioctl(s, SIOCIFDESTROY, &ifr) < 0)
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err(1, "SIOCIFDESTROY");
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/*
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* If we create and destroy an interface in the same command,
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* there isn't any reason to print it's name.
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*/
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printname = 0;
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}
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static struct cmd clone_cmds[] = {
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DEF_CMD("destroy", 0, clone_destroy),
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DEF_CMD("unplumb", 0, clone_destroy),
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};
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static void
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clone_Copt_cb(const char *optarg __unused)
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{
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list_cloners();
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exit(0);
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}
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static struct option clone_Copt = { "C", "[-C]", clone_Copt_cb };
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static __constructor void
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clone_ctor(void)
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{
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#define N(a) (sizeof(a) / sizeof(a[0]))
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int i;
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for (i = 0; i < N(clone_cmds); i++)
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cmd_register(&clone_cmds[i]);
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opt_register(&clone_Copt);
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#undef N
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}
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