133 lines
3.8 KiB
C
133 lines
3.8 KiB
C
/* $NetBSD: af_link.c,v 1.8 2019/08/16 10:33:17 msaitoh Exp $ */
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/*-
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* Copyright (c) 2008 David Young. 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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#ifndef lint
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__RCSID("$NetBSD: af_link.c,v 1.8 2019/08/16 10:33:17 msaitoh Exp $");
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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/socket.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <ifaddrs.h>
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#include <netdb.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <util.h>
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#include "env.h"
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#include "extern.h"
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#include "af_inetany.h"
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static void link_status(prop_dictionary_t, prop_dictionary_t, bool);
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static void link_commit_address(prop_dictionary_t, prop_dictionary_t);
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static const struct kwinst linkkw[] = {
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{.k_word = "active", .k_key = "active", .k_type = KW_T_BOOL,
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.k_bool = true, .k_nextparser = &command_root.pb_parser}
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};
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struct pkw link_pkw = PKW_INITIALIZER(&link_pkw, "link", NULL, NULL,
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linkkw, __arraycount(linkkw), NULL);
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static struct afswtch af = {
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.af_name = "link", .af_af = AF_LINK, .af_status = link_status,
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.af_addr_commit = link_commit_address
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};
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static cmdloop_branch_t branch;
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static void link_constructor(void) __attribute__((constructor));
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static void
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link_status(prop_dictionary_t env, prop_dictionary_t oenv, bool force)
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{
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print_link_addresses(env, false);
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}
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static int
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link_pre_aifaddr(prop_dictionary_t env, const struct afparam *param)
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{
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bool active;
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struct if_laddrreq *iflr = param->req.buf;
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if (prop_dictionary_get_bool(env, "active", &active) && active)
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iflr->flags |= IFLR_ACTIVE;
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return 0;
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}
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static void
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link_commit_address(prop_dictionary_t env, prop_dictionary_t oenv)
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{
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struct if_laddrreq dgreq = {
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.addr = {
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.ss_family = AF_LINK,
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.ss_len = sizeof(dgreq.addr),
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},
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};
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struct if_laddrreq req = {
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.addr = {
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.ss_family = AF_LINK,
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.ss_len = sizeof(req.addr),
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}
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};
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struct afparam linkparam = {
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.req = BUFPARAM(req)
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, .dgreq = BUFPARAM(dgreq)
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, .name = {
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{.buf = dgreq.iflr_name,
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.buflen = sizeof(dgreq.iflr_name)},
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{.buf = req.iflr_name,
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.buflen = sizeof(req.iflr_name)}
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}
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, .dgaddr = BUFPARAM(dgreq.addr)
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, .addr = BUFPARAM(req.addr)
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, .aifaddr = IFADDR_PARAM(SIOCALIFADDR)
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, .difaddr = IFADDR_PARAM(SIOCDLIFADDR)
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, .gifaddr = IFADDR_PARAM(0)
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, .pre_aifaddr = link_pre_aifaddr
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};
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commit_address(env, oenv, &linkparam);
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}
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static void
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link_constructor(void)
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{
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register_family(&af);
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cmdloop_branch_init(&branch, &link_pkw.pk_parser);
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register_cmdloop_branch(&branch);
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}
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