eec02418d8
Reviewed by: kib Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D15077
422 lines
11 KiB
C
422 lines
11 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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* 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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* $FreeBSD$
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*/
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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 <sys/sysctl.h>
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#include <sys/time.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/if_media.h>
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#include <net/route.h>
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#include <assert.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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#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 "libifconfig_internal.h"
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static struct ifmedia_description *get_toptype_desc(int);
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static struct ifmedia_type_to_subtype *get_toptype_ttos(int);
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static struct ifmedia_description *get_subtype_desc(int,
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struct ifmedia_type_to_subtype *ttos);
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#define IFM_OPMODE(x) \
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((x) & (IFM_IEEE80211_ADHOC | IFM_IEEE80211_HOSTAP | \
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IFM_IEEE80211_IBSS | IFM_IEEE80211_WDS | IFM_IEEE80211_MONITOR | \
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IFM_IEEE80211_MBSS))
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#define IFM_IEEE80211_STA 0
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static struct ifmedia_description ifm_type_descriptions[] =
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IFM_TYPE_DESCRIPTIONS;
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static struct ifmedia_description ifm_subtype_ethernet_descriptions[] =
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IFM_SUBTYPE_ETHERNET_DESCRIPTIONS;
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static struct ifmedia_description ifm_subtype_ethernet_aliases[] =
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IFM_SUBTYPE_ETHERNET_ALIASES;
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static struct ifmedia_description ifm_subtype_ethernet_option_descriptions[] =
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IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS;
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static struct ifmedia_description ifm_subtype_tokenring_descriptions[] =
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IFM_SUBTYPE_TOKENRING_DESCRIPTIONS;
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static struct ifmedia_description ifm_subtype_tokenring_aliases[] =
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IFM_SUBTYPE_TOKENRING_ALIASES;
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static struct ifmedia_description ifm_subtype_tokenring_option_descriptions[] =
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IFM_SUBTYPE_TOKENRING_OPTION_DESCRIPTIONS;
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static struct ifmedia_description ifm_subtype_ieee80211_descriptions[] =
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IFM_SUBTYPE_IEEE80211_DESCRIPTIONS;
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static struct ifmedia_description ifm_subtype_ieee80211_aliases[] =
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IFM_SUBTYPE_IEEE80211_ALIASES;
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static struct ifmedia_description ifm_subtype_ieee80211_option_descriptions[] =
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IFM_SUBTYPE_IEEE80211_OPTION_DESCRIPTIONS;
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static struct ifmedia_description ifm_subtype_ieee80211_mode_descriptions[] =
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IFM_SUBTYPE_IEEE80211_MODE_DESCRIPTIONS;
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static struct ifmedia_description ifm_subtype_ieee80211_mode_aliases[] =
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IFM_SUBTYPE_IEEE80211_MODE_ALIASES;
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static struct ifmedia_description ifm_subtype_atm_descriptions[] =
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IFM_SUBTYPE_ATM_DESCRIPTIONS;
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static struct ifmedia_description ifm_subtype_atm_aliases[] =
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IFM_SUBTYPE_ATM_ALIASES;
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static struct ifmedia_description ifm_subtype_atm_option_descriptions[] =
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IFM_SUBTYPE_ATM_OPTION_DESCRIPTIONS;
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static struct ifmedia_description ifm_subtype_shared_descriptions[] =
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IFM_SUBTYPE_SHARED_DESCRIPTIONS;
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static struct ifmedia_description ifm_subtype_shared_aliases[] =
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IFM_SUBTYPE_SHARED_ALIASES;
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static struct ifmedia_description ifm_shared_option_descriptions[] =
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IFM_SHARED_OPTION_DESCRIPTIONS;
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static struct ifmedia_description ifm_shared_option_aliases[] =
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IFM_SHARED_OPTION_ALIASES;
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struct ifmedia_type_to_subtype {
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struct {
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struct ifmedia_description *desc;
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int alias;
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}
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subtypes[5];
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struct {
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struct ifmedia_description *desc;
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int alias;
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}
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options[4];
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struct {
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struct ifmedia_description *desc;
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int alias;
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}
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modes[3];
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};
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/* must be in the same order as IFM_TYPE_DESCRIPTIONS */
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static struct ifmedia_type_to_subtype ifmedia_types_to_subtypes[] =
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{
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{
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{
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{ &ifm_subtype_shared_descriptions[0], 0 },
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{ &ifm_subtype_shared_aliases[0], 1 },
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{ &ifm_subtype_ethernet_descriptions[0], 0 },
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{ &ifm_subtype_ethernet_aliases[0], 1 },
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{ NULL, 0 },
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},
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{
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{ &ifm_shared_option_descriptions[0], 0 },
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{ &ifm_shared_option_aliases[0], 1 },
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{ &ifm_subtype_ethernet_option_descriptions[0], 0 },
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{ NULL, 0 },
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},
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{
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{ NULL, 0 },
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},
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},
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{
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{
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{ &ifm_subtype_shared_descriptions[0], 0 },
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{ &ifm_subtype_shared_aliases[0], 1 },
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{ &ifm_subtype_tokenring_descriptions[0], 0 },
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{ &ifm_subtype_tokenring_aliases[0], 1 },
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{ NULL, 0 },
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},
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{
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{ &ifm_shared_option_descriptions[0], 0 },
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{ &ifm_shared_option_aliases[0], 1 },
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{ &ifm_subtype_tokenring_option_descriptions[0], 0 },
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{ NULL, 0 },
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},
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{
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{ NULL, 0 },
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},
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},
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{
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{
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{ &ifm_subtype_shared_descriptions[0], 0 },
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{ &ifm_subtype_shared_aliases[0], 1 },
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{ &ifm_subtype_ieee80211_descriptions[0], 0 },
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{ &ifm_subtype_ieee80211_aliases[0], 1 },
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{ NULL, 0 },
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},
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{
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{ &ifm_shared_option_descriptions[0], 0 },
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{ &ifm_shared_option_aliases[0], 1 },
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{ &ifm_subtype_ieee80211_option_descriptions[0], 0 },
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{ NULL, 0 },
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},
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{
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{ &ifm_subtype_ieee80211_mode_descriptions[0], 0 },
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{ &ifm_subtype_ieee80211_mode_aliases[0], 0 },
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{ NULL, 0 },
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},
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},
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{
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{
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{ &ifm_subtype_shared_descriptions[0], 0 },
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{ &ifm_subtype_shared_aliases[0], 1 },
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{ &ifm_subtype_atm_descriptions[0], 0 },
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{ &ifm_subtype_atm_aliases[0], 1 },
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{ NULL, 0 },
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},
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{
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{ &ifm_shared_option_descriptions[0], 0 },
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{ &ifm_shared_option_aliases[0], 1 },
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{ &ifm_subtype_atm_option_descriptions[0], 0 },
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{ NULL, 0 },
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},
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{
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{ NULL, 0 },
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},
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},
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};
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static struct ifmedia_description *
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get_toptype_desc(int ifmw)
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{
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struct ifmedia_description *desc;
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for (desc = ifm_type_descriptions; desc->ifmt_string != NULL; desc++) {
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if (IFM_TYPE(ifmw) == desc->ifmt_word) {
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break;
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}
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}
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return (desc);
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}
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static struct ifmedia_type_to_subtype *
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get_toptype_ttos(int ifmw)
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{
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struct ifmedia_description *desc;
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struct ifmedia_type_to_subtype *ttos;
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for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
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desc->ifmt_string != NULL; desc++, ttos++) {
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if (IFM_TYPE(ifmw) == desc->ifmt_word) {
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break;
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}
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}
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return (ttos);
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}
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static struct ifmedia_description *
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get_subtype_desc(int ifmw,
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struct ifmedia_type_to_subtype *ttos)
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{
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int i;
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struct ifmedia_description *desc;
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for (i = 0; ttos->subtypes[i].desc != NULL; i++) {
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if (ttos->subtypes[i].alias) {
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continue;
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}
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for (desc = ttos->subtypes[i].desc;
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desc->ifmt_string != NULL; desc++) {
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if (IFM_SUBTYPE(ifmw) == desc->ifmt_word) {
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return (desc);
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}
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}
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}
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return (NULL);
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}
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const char *
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ifconfig_media_get_type(int ifmw)
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{
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struct ifmedia_description *desc;
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/*int seen_option = 0, i;*/
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/* Find the top-level interface type. */
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desc = get_toptype_desc(ifmw);
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if (desc->ifmt_string == NULL) {
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return ("<unknown type>");
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} else {
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return (desc->ifmt_string);
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}
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}
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const char *
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ifconfig_media_get_subtype(int ifmw)
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{
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struct ifmedia_description *desc;
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struct ifmedia_type_to_subtype *ttos;
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ttos = get_toptype_ttos(ifmw);
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desc = get_subtype_desc(ifmw, ttos);
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return (desc->ifmt_string);
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}
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/***************************************************************************
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* Above this point, this file is mostly copied from sbin/ifconfig/ifmedia.c
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***************************************************************************/
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/* Internal structure used for allocations and frees */
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struct _ifconfig_media_status {
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struct ifmediareq ifmr;
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int medialist[0];
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};
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int
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ifconfig_media_get_mediareq(ifconfig_handle_t *h, const char *name,
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struct ifmediareq **ifmr)
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{
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struct _ifconfig_media_status *ms, *ms2;
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unsigned long cmd = SIOCGIFXMEDIA;
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*ifmr = NULL;
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ms = calloc(1, sizeof(*ms));
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if (ms == NULL) {
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h->error.errtype = OTHER;
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h->error.errcode = ENOMEM;
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return (-1);
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}
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(void)memset(ms, 0, sizeof(*ms));
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(void)strlcpy(ms->ifmr.ifm_name, name, sizeof(ms->ifmr.ifm_name));
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/*
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* Check if interface supports extended media types.
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*/
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if (ifconfig_ioctlwrap(h, AF_LOCAL, cmd, &ms->ifmr) < 0) {
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cmd = SIOCGIFMEDIA;
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if (ifconfig_ioctlwrap(h, AF_LOCAL, cmd, &ms->ifmr) < 0) {
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/* Interface doesn't support SIOC{G,S}IFMEDIA. */
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h->error.errtype = OK;
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free(ms);
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return (-1);
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}
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}
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if (ms->ifmr.ifm_count == 0) {
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*ifmr = &ms->ifmr;
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return (0); /* Interface has no media types ?*/
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}
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ms2 = realloc(ms, sizeof(*ms) + sizeof(int) * ms->ifmr.ifm_count);
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if (ms2 == NULL) {
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h->error.errtype = OTHER;
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h->error.errcode = ENOMEM;
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free(ms);
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return (-1);
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}
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ms2->ifmr.ifm_ulist = &ms2->medialist[0];
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if (ifconfig_ioctlwrap(h, AF_LOCAL, cmd, &ms2->ifmr) < 0) {
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free(ms2);
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return (-1);
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}
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*ifmr = &ms2->ifmr;
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return (0);
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}
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const char *
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ifconfig_media_get_status(const struct ifmediareq *ifmr)
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{
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switch (IFM_TYPE(ifmr->ifm_active)) {
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case IFM_ETHER:
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case IFM_ATM:
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if (ifmr->ifm_status & IFM_ACTIVE) {
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return ("active");
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} else {
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return ("no carrier");
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}
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break;
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case IFM_IEEE80211:
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if (ifmr->ifm_status & IFM_ACTIVE) {
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/* NB: only sta mode associates */
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if (IFM_OPMODE(ifmr->ifm_active) == IFM_IEEE80211_STA) {
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return ("associated");
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} else {
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return ("running");
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}
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} else {
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return ("no carrier");
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}
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break;
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default:
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return ("");
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}
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}
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void
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ifconfig_media_get_options_string(int ifmw, char *buf, size_t buflen)
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{
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struct ifmedia_type_to_subtype *ttos;
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struct ifmedia_description *desc;
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int i, seen_option = 0;
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size_t len;
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assert(buflen > 0);
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buf[0] = '\0';
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ttos = get_toptype_ttos(ifmw);
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for (i = 0; ttos->options[i].desc != NULL; i++) {
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if (ttos->options[i].alias) {
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continue;
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}
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for (desc = ttos->options[i].desc;
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desc->ifmt_string != NULL; desc++) {
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if (ifmw & desc->ifmt_word) {
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if (seen_option++) {
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strlcat(buf, ",", buflen);
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}
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len = strlcat(buf, desc->ifmt_string, buflen);
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assert(len < buflen);
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buf += len;
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buflen -= len;
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}
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}
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}
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}
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