6dbbec9385
ieee80211.c: add_chanlist(): 'error' variable will be uninitialized if no channels were passed; return '0' instead. ieee80211_action.c: ieee80211_send_action_register(): drop 'break' after 'return'. ieee80211_crypto_none.c: none_encap(): 'keyid' is not used in non-debug builds; hide it behind IEEE80211_DEBUG ifdef. ieee80211_freebsd.c: Staticize global 'ieee80211_debug' variable (used only in this file). ieee80211_hostap.c: Fix a comment (associatio -> association). ieee80211_ht.c: ieee80211_setup_htrates(): initialize 'maxunequalmcs' to 0 to mute compiler warning. ieee80211_hwmp.c: hwmp_recv_preq(): copy 'prep' between conditional blocks to fix -Wshadow warning. ieee80211_mesh.c: mesh_newstate(): remove duplicate 'ni' definition. mesh_recv_group_data(): fix -Wempty-body warning in non-debug builds. ieee80211_phy.c: ieee80211_compute_duration(): remove 'break' after panic() call. ieee80211_scan_sta.c: Hide some TDMA-specific macros under IEEE80211_SUPPORT_TDMA ifdef adhoc_pick_bss(): remove 'ic' pointer redefinition. ieee80211_sta.c: sta_beacon_miss(): remove 'ic' pointer redefinition. ieee80211_superg.c: superg_ioctl_set80211(): drop unreachable return. Tested with clang 3.8.0, gcc 4.6.4 and gcc 5.3.0.
262 lines
7.5 KiB
C
262 lines
7.5 KiB
C
/*-
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* Copyright (c) 2009 Sam Leffler, Errno Consulting
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* 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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifdef __FreeBSD__
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__FBSDID("$FreeBSD$");
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#endif
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/*
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* IEEE 802.11 send/recv action frame support.
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*/
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#include "opt_inet.h"
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#include "opt_wlan.h"
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_media.h>
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#include <net/ethernet.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_action.h>
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#include <net80211/ieee80211_mesh.h>
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static int
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send_inval(struct ieee80211_node *ni, int cat, int act, void *sa)
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{
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return EINVAL;
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}
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static ieee80211_send_action_func *ba_send_action[8] = {
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send_inval, send_inval, send_inval, send_inval,
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send_inval, send_inval, send_inval, send_inval,
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};
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static ieee80211_send_action_func *ht_send_action[8] = {
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send_inval, send_inval, send_inval, send_inval,
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send_inval, send_inval, send_inval, send_inval,
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};
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static ieee80211_send_action_func *meshpl_send_action[8] = {
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send_inval, send_inval, send_inval, send_inval,
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send_inval, send_inval, send_inval, send_inval,
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};
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static ieee80211_send_action_func *meshaction_send_action[12] = {
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send_inval, send_inval, send_inval, send_inval,
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send_inval, send_inval, send_inval, send_inval,
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send_inval, send_inval, send_inval, send_inval,
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};
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static ieee80211_send_action_func *vendor_send_action[8] = {
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send_inval, send_inval, send_inval, send_inval,
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send_inval, send_inval, send_inval, send_inval,
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};
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int
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ieee80211_send_action_register(int cat, int act, ieee80211_send_action_func *f)
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{
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switch (cat) {
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case IEEE80211_ACTION_CAT_BA:
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if (act >= nitems(ba_send_action))
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break;
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ba_send_action[act] = f;
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return 0;
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case IEEE80211_ACTION_CAT_HT:
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if (act >= nitems(ht_send_action))
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break;
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ht_send_action[act] = f;
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return 0;
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case IEEE80211_ACTION_CAT_SELF_PROT:
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if (act >= nitems(meshpl_send_action))
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break;
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meshpl_send_action[act] = f;
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return 0;
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case IEEE80211_ACTION_CAT_MESH:
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if (act >= nitems(meshaction_send_action))
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break;
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meshaction_send_action[act] = f;
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return 0;
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case IEEE80211_ACTION_CAT_VENDOR:
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if (act >= nitems(vendor_send_action))
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break;
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vendor_send_action[act] = f;
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return 0;
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}
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return EINVAL;
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}
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void
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ieee80211_send_action_unregister(int cat, int act)
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{
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ieee80211_send_action_register(cat, act, send_inval);
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}
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int
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ieee80211_send_action(struct ieee80211_node *ni, int cat, int act, void *sa)
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{
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ieee80211_send_action_func *f = send_inval;
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switch (cat) {
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case IEEE80211_ACTION_CAT_BA:
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if (act < nitems(ba_send_action))
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f = ba_send_action[act];
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break;
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case IEEE80211_ACTION_CAT_HT:
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if (act < nitems(ht_send_action))
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f = ht_send_action[act];
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break;
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case IEEE80211_ACTION_CAT_SELF_PROT:
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if (act < nitems(meshpl_send_action))
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f = meshpl_send_action[act];
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break;
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case IEEE80211_ACTION_CAT_MESH:
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if (act < nitems(meshaction_send_action))
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f = meshaction_send_action[act];
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break;
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case IEEE80211_ACTION_CAT_VENDOR:
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if (act < nitems(vendor_send_action))
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f = vendor_send_action[act];
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break;
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}
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return f(ni, cat, act, sa);
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}
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static int
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recv_inval(struct ieee80211_node *ni, const struct ieee80211_frame *wh,
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const uint8_t *frm, const uint8_t *efrm)
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{
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return EINVAL;
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}
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static ieee80211_recv_action_func *ba_recv_action[8] = {
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recv_inval, recv_inval, recv_inval, recv_inval,
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recv_inval, recv_inval, recv_inval, recv_inval,
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};
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static ieee80211_recv_action_func *ht_recv_action[8] = {
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recv_inval, recv_inval, recv_inval, recv_inval,
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recv_inval, recv_inval, recv_inval, recv_inval,
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};
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static ieee80211_recv_action_func *meshpl_recv_action[8] = {
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recv_inval, recv_inval, recv_inval, recv_inval,
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recv_inval, recv_inval, recv_inval, recv_inval,
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};
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static ieee80211_recv_action_func *meshaction_recv_action[12] = {
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recv_inval, recv_inval, recv_inval, recv_inval,
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recv_inval, recv_inval, recv_inval, recv_inval,
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recv_inval, recv_inval, recv_inval, recv_inval,
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};
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static ieee80211_recv_action_func *vendor_recv_action[8] = {
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recv_inval, recv_inval, recv_inval, recv_inval,
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recv_inval, recv_inval, recv_inval, recv_inval,
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};
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int
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ieee80211_recv_action_register(int cat, int act, ieee80211_recv_action_func *f)
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{
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switch (cat) {
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case IEEE80211_ACTION_CAT_BA:
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if (act >= nitems(ba_recv_action))
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break;
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ba_recv_action[act] = f;
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return 0;
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case IEEE80211_ACTION_CAT_HT:
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if (act >= nitems(ht_recv_action))
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break;
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ht_recv_action[act] = f;
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return 0;
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case IEEE80211_ACTION_CAT_SELF_PROT:
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if (act >= nitems(meshpl_recv_action))
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break;
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meshpl_recv_action[act] = f;
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return 0;
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case IEEE80211_ACTION_CAT_MESH:
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if (act >= nitems(meshaction_recv_action))
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break;
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meshaction_recv_action[act] = f;
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return 0;
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case IEEE80211_ACTION_CAT_VENDOR:
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if (act >= nitems(vendor_recv_action))
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break;
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vendor_recv_action[act] = f;
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return 0;
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}
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return EINVAL;
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}
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void
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ieee80211_recv_action_unregister(int cat, int act)
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{
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ieee80211_recv_action_register(cat, act, recv_inval);
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}
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int
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ieee80211_recv_action(struct ieee80211_node *ni,
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const struct ieee80211_frame *wh,
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const uint8_t *frm, const uint8_t *efrm)
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{
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ieee80211_recv_action_func *f = recv_inval;
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struct ieee80211vap *vap = ni->ni_vap;
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const struct ieee80211_action *ia =
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(const struct ieee80211_action *) frm;
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switch (ia->ia_category) {
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case IEEE80211_ACTION_CAT_BA:
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if (ia->ia_action < nitems(ba_recv_action))
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f = ba_recv_action[ia->ia_action];
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break;
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case IEEE80211_ACTION_CAT_HT:
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if (ia->ia_action < nitems(ht_recv_action))
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f = ht_recv_action[ia->ia_action];
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break;
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case IEEE80211_ACTION_CAT_SELF_PROT:
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if (ia->ia_action < nitems(meshpl_recv_action))
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f = meshpl_recv_action[ia->ia_action];
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break;
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case IEEE80211_ACTION_CAT_MESH:
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if (ni == vap->iv_bss ||
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ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) {
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IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH,
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ni->ni_macaddr, NULL,
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"peer link not yet established (%d), cat %s act %u",
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ni->ni_mlstate, "mesh action", ia->ia_action);
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vap->iv_stats.is_mesh_nolink++;
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break;
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}
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if (ia->ia_action < nitems(meshaction_recv_action))
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f = meshaction_recv_action[ia->ia_action];
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break;
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case IEEE80211_ACTION_CAT_VENDOR:
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if (ia->ia_action < nitems(vendor_recv_action))
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f = vendor_recv_action[ia->ia_action];
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break;
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}
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return f(ni, wh, frm, efrm);
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}
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