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/*-
* Copyright (c) 2009 Sam Leffler, Errno Consulting
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
#include <sys/cdefs.h>
#ifdef __FreeBSD__
__FBSDID("$FreeBSD$");
#endif
/*
* IEEE 802.11 send/recv action frame support.
*/
#include "opt_inet.h"
#include "opt_wlan.h"
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_media.h>
#include <net/ethernet.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_action.h>
#include <net80211/ieee80211_mesh.h>
static int
send_inval(struct ieee80211_node *ni, int cat, int act, void *sa)
{
return EINVAL;
}
static ieee80211_send_action_func *ba_send_action[8] = {
send_inval, send_inval, send_inval, send_inval,
send_inval, send_inval, send_inval, send_inval,
};
static ieee80211_send_action_func *ht_send_action[8] = {
send_inval, send_inval, send_inval, send_inval,
send_inval, send_inval, send_inval, send_inval,
};
static ieee80211_send_action_func *meshpl_send_action[8] = {
send_inval, send_inval, send_inval, send_inval,
send_inval, send_inval, send_inval, send_inval,
};
static ieee80211_send_action_func *meshaction_send_action[12] = {
send_inval, send_inval, send_inval, send_inval,
send_inval, send_inval, send_inval, send_inval,
send_inval, send_inval, send_inval, send_inval,
};
static ieee80211_send_action_func *vendor_send_action[8] = {
send_inval, send_inval, send_inval, send_inval,
send_inval, send_inval, send_inval, send_inval,
};
int
ieee80211_send_action_register(int cat, int act, ieee80211_send_action_func *f)
{
switch (cat) {
case IEEE80211_ACTION_CAT_BA:
if (act >= nitems(ba_send_action))
break;
ba_send_action[act] = f;
return 0;
case IEEE80211_ACTION_CAT_HT:
if (act >= nitems(ht_send_action))
break;
ht_send_action[act] = f;
return 0;
case IEEE80211_ACTION_CAT_SELF_PROT:
if (act >= nitems(meshpl_send_action))
break;
meshpl_send_action[act] = f;
return 0;
case IEEE80211_ACTION_CAT_MESH:
if (act >= nitems(meshaction_send_action))
break;
meshaction_send_action[act] = f;
return 0;
break;
case IEEE80211_ACTION_CAT_VENDOR:
if (act >= nitems(vendor_send_action))
break;
vendor_send_action[act] = f;
return 0;
}
return EINVAL;
}
void
ieee80211_send_action_unregister(int cat, int act)
{
ieee80211_send_action_register(cat, act, send_inval);
}
int
ieee80211_send_action(struct ieee80211_node *ni, int cat, int act, void *sa)
{
ieee80211_send_action_func *f = send_inval;
switch (cat) {
case IEEE80211_ACTION_CAT_BA:
if (act < nitems(ba_send_action))
f = ba_send_action[act];
break;
case IEEE80211_ACTION_CAT_HT:
if (act < nitems(ht_send_action))
f = ht_send_action[act];
break;
case IEEE80211_ACTION_CAT_SELF_PROT:
if (act < nitems(meshpl_send_action))
f = meshpl_send_action[act];
break;
case IEEE80211_ACTION_CAT_MESH:
if (act < nitems(meshaction_send_action))
f = meshaction_send_action[act];
break;
case IEEE80211_ACTION_CAT_VENDOR:
if (act < nitems(vendor_send_action))
f = vendor_send_action[act];
break;
}
return f(ni, cat, act, sa);
}
static int
recv_inval(struct ieee80211_node *ni, const struct ieee80211_frame *wh,
const uint8_t *frm, const uint8_t *efrm)
{
return EINVAL;
}
static ieee80211_recv_action_func *ba_recv_action[8] = {
recv_inval, recv_inval, recv_inval, recv_inval,
recv_inval, recv_inval, recv_inval, recv_inval,
};
static ieee80211_recv_action_func *ht_recv_action[8] = {
recv_inval, recv_inval, recv_inval, recv_inval,
recv_inval, recv_inval, recv_inval, recv_inval,
};
static ieee80211_recv_action_func *meshpl_recv_action[8] = {
recv_inval, recv_inval, recv_inval, recv_inval,
recv_inval, recv_inval, recv_inval, recv_inval,
};
static ieee80211_recv_action_func *meshaction_recv_action[12] = {
recv_inval, recv_inval, recv_inval, recv_inval,
recv_inval, recv_inval, recv_inval, recv_inval,
recv_inval, recv_inval, recv_inval, recv_inval,
};
static ieee80211_recv_action_func *vendor_recv_action[8] = {
recv_inval, recv_inval, recv_inval, recv_inval,
recv_inval, recv_inval, recv_inval, recv_inval,
};
int
ieee80211_recv_action_register(int cat, int act, ieee80211_recv_action_func *f)
{
switch (cat) {
case IEEE80211_ACTION_CAT_BA:
if (act >= nitems(ba_recv_action))
break;
ba_recv_action[act] = f;
return 0;
case IEEE80211_ACTION_CAT_HT:
if (act >= nitems(ht_recv_action))
break;
ht_recv_action[act] = f;
return 0;
case IEEE80211_ACTION_CAT_SELF_PROT:
if (act >= nitems(meshpl_recv_action))
break;
meshpl_recv_action[act] = f;
return 0;
case IEEE80211_ACTION_CAT_MESH:
if (act >= nitems(meshaction_recv_action))
break;
meshaction_recv_action[act] = f;
return 0;
case IEEE80211_ACTION_CAT_VENDOR:
if (act >= nitems(vendor_recv_action))
break;
vendor_recv_action[act] = f;
return 0;
}
return EINVAL;
}
void
ieee80211_recv_action_unregister(int cat, int act)
{
ieee80211_recv_action_register(cat, act, recv_inval);
}
int
ieee80211_recv_action(struct ieee80211_node *ni,
const struct ieee80211_frame *wh,
const uint8_t *frm, const uint8_t *efrm)
{
ieee80211_recv_action_func *f = recv_inval;
struct ieee80211vap *vap = ni->ni_vap;
const struct ieee80211_action *ia =
(const struct ieee80211_action *) frm;
switch (ia->ia_category) {
case IEEE80211_ACTION_CAT_BA:
if (ia->ia_action < nitems(ba_recv_action))
f = ba_recv_action[ia->ia_action];
break;
case IEEE80211_ACTION_CAT_HT:
if (ia->ia_action < nitems(ht_recv_action))
f = ht_recv_action[ia->ia_action];
break;
case IEEE80211_ACTION_CAT_SELF_PROT:
if (ia->ia_action < nitems(meshpl_recv_action))
f = meshpl_recv_action[ia->ia_action];
break;
case IEEE80211_ACTION_CAT_MESH:
if (ni == vap->iv_bss ||
ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) {
IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH,
ni->ni_macaddr, NULL,
"peer link not yet established (%d), cat %s act %u",
ni->ni_mlstate, "mesh action", ia->ia_action);
vap->iv_stats.is_mesh_nolink++;
break;
}
if (ia->ia_action < nitems(meshaction_recv_action))
f = meshaction_recv_action[ia->ia_action];
break;
case IEEE80211_ACTION_CAT_VENDOR:
if (ia->ia_action < nitems(vendor_recv_action))
f = vendor_recv_action[ia->ia_action];
break;
}
return f(ni, wh, frm, efrm);
}
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