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opnsense-src/sys/compat/linuxkpi/common/src/linux_80211.c
Bjoern A. Zeeb cfccc7f30a LinuxKPI: 802.11: remove extra spaces 
Remove two extra spaces.  No functional change.

Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2023-04-02 22:25:28 +00:00

5117 lines
132 KiB
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/*-
* Copyright (c) 2020-2023 The FreeBSD Foundation
* Copyright (c) 2020-2022 Bjoern A. Zeeb
*
* This software was developed by Björn Zeeb under sponsorship from
* the FreeBSD Foundation.
*
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*/
/*
* Public functions are called linuxkpi_*().
* Internal (static) functions are called lkpi_*().
*
* The internal structures holding metadata over public structures are also
* called lkpi_xxx (usually with a member at the end called xxx).
* Note: we do not replicate the structure names but the general variable names
* for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta).
* There are macros to access one from the other.
* We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta).
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/types.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/queue.h>
#include <sys/taskqueue.h>
#include <sys/libkern.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_proto.h>
#include <net80211/ieee80211_ratectl.h>
#include <net80211/ieee80211_radiotap.h>
#define LINUXKPI_NET80211
#include <net/mac80211.h>
#include <linux/workqueue.h>
#include "linux_80211.h"
#define LKPI_80211_WME
/* #define LKPI_80211_HW_CRYPTO */
static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat");
/* XXX-BZ really want this and others in queue.h */
#define TAILQ_ELEM_INIT(elm, field) do { \
(elm)->field.tqe_next = NULL; \
(elm)->field.tqe_prev = NULL; \
} while (0)
/* -------------------------------------------------------------------------- */
/* Keep public for as long as header files are using it too. */
int linuxkpi_debug_80211;
#ifdef LINUXKPI_DEBUG_80211
SYSCTL_DECL(_compat_linuxkpi);
SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
"LinuxKPI 802.11 compatibility layer");
SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN,
&linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level");
#define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \
printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__)
#define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \
printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__)
#else
#define UNIMPLEMENTED do { } while (0)
#define TRACEOK() do { } while (0)
#endif
/* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */
#ifndef PREP_TX_INFO_DURATION
#define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */
#endif
/* c.f. ieee80211_ioctl.c */
static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
/* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */
const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
/* IEEE 802.11-05/0257r1 */
const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
const uint8_t tid_to_mac80211_ac[] = {
IEEE80211_AC_BE,
IEEE80211_AC_BK,
IEEE80211_AC_BK,
IEEE80211_AC_BE,
IEEE80211_AC_VI,
IEEE80211_AC_VI,
IEEE80211_AC_VO,
IEEE80211_AC_VO,
#if 0
IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */
#endif
};
const struct cfg80211_ops linuxkpi_mac80211cfgops = {
/*
* XXX TODO need a "glue layer" to link cfg80211 ops to
* mac80211 and to the driver or net80211.
* Can we pass some on 1:1? Need to compare the (*f)().
*/
};
static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *,
struct ieee80211_node *);
static void lkpi_80211_txq_task(void *, int);
static void lkpi_ieee80211_free_skb_mbuf(void *);
#ifdef LKPI_80211_WME
static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool);
#endif
static void
lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni,
const char *_f, int _l)
{
#ifdef LINUXKPI_DEBUG_80211
if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0)
return;
if (lsta == NULL)
return;
printf("%s:%d lsta %p ni %p sta %p\n",
_f, _l, lsta, ni, &lsta->sta);
if (ni != NULL)
ieee80211_dump_node(NULL, ni);
printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq));
printf("\tkc %p state %d added_to_drv %d in_mgd %d\n",
lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd);
#endif
}
static void
lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif)
{
struct ieee80211_node *ni;
IMPROVE("XXX-BZ remove tqe_prev check once ni-sta-state-sync is fixed");
ni = lsta->ni;
LKPI_80211_LVIF_LOCK(lvif);
if (lsta->lsta_entry.tqe_prev != NULL)
TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry);
LKPI_80211_LVIF_UNLOCK(lvif);
lsta->ni = NULL;
ni->ni_drv_data = NULL;
if (ni != NULL)
ieee80211_free_node(ni);
IMPROVE("more from lkpi_ic_node_free() should happen here.");
free(lsta, M_LKPI80211);
}
static struct lkpi_sta *
lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
struct ieee80211_hw *hw, struct ieee80211_node *ni)
{
struct lkpi_sta *lsta;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_sta *sta;
int band, i, tid;
lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211,
M_NOWAIT | M_ZERO);
if (lsta == NULL)
return (NULL);
lsta->added_to_drv = false;
lsta->state = IEEE80211_STA_NOTEXIST;
#if 0
/*
* This needs to be done in node_init() as ieee80211_alloc_node()
* will initialise the refcount after us.
*/
lsta->ni = ieee80211_ref_node(ni);
#endif
/* The back-pointer "drv_data" to net80211_node let's us get lsta. */
ni->ni_drv_data = lsta;
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
sta = LSTA_TO_STA(lsta);
IEEE80211_ADDR_COPY(sta->addr, mac);
/* TXQ */
for (tid = 0; tid < nitems(sta->txq); tid++) {
struct lkpi_txq *ltxq;
/* We are not limiting ourselves to hw.queues here. */
ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size,
M_LKPI80211, M_NOWAIT | M_ZERO);
if (ltxq == NULL)
goto cleanup;
/* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */
if (tid == IEEE80211_NUM_TIDS) {
if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) {
free(ltxq, M_LKPI80211);
continue;
}
IMPROVE("AP/if we support non-STA here too");
ltxq->txq.ac = IEEE80211_AC_VO;
} else {
ltxq->txq.ac = tid_to_mac80211_ac[tid & 7];
}
ltxq->seen_dequeue = false;
ltxq->stopped = false;
ltxq->txq.vif = vif;
ltxq->txq.tid = tid;
ltxq->txq.sta = sta;
TAILQ_ELEM_INIT(ltxq, txq_entry);
skb_queue_head_init(&ltxq->skbq);
sta->txq[tid] = &ltxq->txq;
}
/* Deflink information. */
for (band = 0; band < NUM_NL80211_BANDS; band++) {
struct ieee80211_supported_band *supband;
supband = hw->wiphy->bands[band];
if (supband == NULL)
continue;
for (i = 0; i < supband->n_bitrates; i++) {
IMPROVE("Further supband->bitrates[i]* checks?");
/* or should we get them from the ni? */
sta->deflink.supp_rates[band] |= BIT(i);
}
}
IMPROVE("ht, vht, he, ... bandwidth, smps_mode, ..");
/* bandwidth = IEEE80211_STA_RX_... */
/* Deferred TX path. */
mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF);
TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta);
mbufq_init(&lsta->txq, IFQ_MAXLEN);
return (lsta);
cleanup:
for (; tid >= 0; tid--)
free(sta->txq[tid], M_LKPI80211);
free(lsta, M_LKPI80211);
return (NULL);
}
static enum nl80211_band
lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c)
{
if (IEEE80211_IS_CHAN_2GHZ(c))
return (NL80211_BAND_2GHZ);
else if (IEEE80211_IS_CHAN_5GHZ(c))
return (NL80211_BAND_5GHZ);
#ifdef __notyet__
else if ()
return (NL80211_BAND_6GHZ);
else if ()
return (NL80211_BAND_60GHZ);
else if (IEEE80211_IS_CHAN_GSM(c))
return (NL80211_BAND_XXX);
#endif
else
panic("%s: unsupported band. c %p flags %#x\n",
__func__, c, c->ic_flags);
}
static uint32_t
lkpi_nl80211_band_to_net80211_band(enum nl80211_band band)
{
/* XXX-BZ this is just silly; net80211 is too convoluted. */
/* IEEE80211_CHAN_A / _G / .. doesn't really work either. */
switch (band) {
case NL80211_BAND_2GHZ:
return (IEEE80211_CHAN_2GHZ);
break;
case NL80211_BAND_5GHZ:
return (IEEE80211_CHAN_5GHZ);
break;
case NL80211_BAND_60GHZ:
break;
case NL80211_BAND_6GHZ:
break;
default:
panic("%s: unsupported band %u\n", __func__, band);
break;
}
IMPROVE();
return (0x00);
}
#if 0
static enum ieee80211_ac_numbers
lkpi_ac_net_to_l80211(int ac)
{
switch (ac) {
case WME_AC_VO:
return (IEEE80211_AC_VO);
case WME_AC_VI:
return (IEEE80211_AC_VI);
case WME_AC_BE:
return (IEEE80211_AC_BE);
case WME_AC_BK:
return (IEEE80211_AC_BK);
default:
printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac);
return (IEEE80211_AC_BE);
}
}
#endif
static enum nl80211_iftype
lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode)
{
switch (opmode) {
case IEEE80211_M_IBSS:
return (NL80211_IFTYPE_ADHOC);
break;
case IEEE80211_M_STA:
return (NL80211_IFTYPE_STATION);
break;
case IEEE80211_M_WDS:
return (NL80211_IFTYPE_WDS);
break;
case IEEE80211_M_HOSTAP:
return (NL80211_IFTYPE_AP);
break;
case IEEE80211_M_MONITOR:
return (NL80211_IFTYPE_MONITOR);
break;
case IEEE80211_M_MBSS:
return (NL80211_IFTYPE_MESH_POINT);
break;
case IEEE80211_M_AHDEMO:
/* FALLTHROUGH */
default:
printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode);
/* FALLTHROUGH */
}
return (NL80211_IFTYPE_UNSPECIFIED);
}
#ifdef LKPI_80211_HW_CRYPTO
static uint32_t
lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite)
{
switch (wlan_cipher_suite) {
case WLAN_CIPHER_SUITE_WEP40:
return (IEEE80211_CRYPTO_WEP);
case WLAN_CIPHER_SUITE_TKIP:
return (IEEE80211_CRYPTO_TKIP);
case WLAN_CIPHER_SUITE_CCMP:
return (IEEE80211_CIPHER_AES_CCM);
case WLAN_CIPHER_SUITE_WEP104:
return (IEEE80211_CRYPTO_WEP);
case WLAN_CIPHER_SUITE_AES_CMAC:
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
case WLAN_CIPHER_SUITE_CCMP_256:
case WLAN_CIPHER_SUITE_BIP_GMAC_128:
case WLAN_CIPHER_SUITE_BIP_GMAC_256:
case WLAN_CIPHER_SUITE_BIP_CMAC_256:
printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__,
wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff);
break;
default:
printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__,
wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff);
}
return (0);
}
static uint32_t
lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen)
{
switch (cipher) {
case IEEE80211_CIPHER_TKIP:
return (WLAN_CIPHER_SUITE_TKIP);
case IEEE80211_CIPHER_AES_CCM:
return (WLAN_CIPHER_SUITE_CCMP);
case IEEE80211_CIPHER_WEP:
if (keylen < 8)
return (WLAN_CIPHER_SUITE_WEP40);
else
return (WLAN_CIPHER_SUITE_WEP104);
break;
case IEEE80211_CIPHER_AES_OCB:
case IEEE80211_CIPHER_TKIPMIC:
case IEEE80211_CIPHER_CKIP:
case IEEE80211_CIPHER_NONE:
printf("%s: unsupported cipher %#010x\n", __func__, cipher);
break;
default:
printf("%s: unknown cipher %#010x\n", __func__, cipher);
};
return (0);
}
#endif
#ifdef __notyet__
static enum ieee80211_sta_state
lkpi_net80211_state_to_sta_state(enum ieee80211_state state)
{
/*
* XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are
* "done". Also ASSOC/AUTHORIZED are both "RUN" then?
*/
switch (state) {
case IEEE80211_S_INIT:
return (IEEE80211_STA_NOTEXIST);
case IEEE80211_S_SCAN:
return (IEEE80211_STA_NONE);
case IEEE80211_S_AUTH:
return (IEEE80211_STA_AUTH);
case IEEE80211_S_ASSOC:
return (IEEE80211_STA_ASSOC);
case IEEE80211_S_RUN:
return (IEEE80211_STA_AUTHORIZED);
case IEEE80211_S_CAC:
case IEEE80211_S_CSA:
case IEEE80211_S_SLEEP:
default:
UNIMPLEMENTED;
};
return (IEEE80211_STA_NOTEXIST);
}
#endif
static struct linuxkpi_ieee80211_channel *
lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw,
struct ieee80211_channel *c)
{
struct ieee80211_hw *hw;
struct linuxkpi_ieee80211_channel *channels;
enum nl80211_band band;
int i, nchans;
hw = LHW_TO_HW(lhw);
band = lkpi_net80211_chan_to_nl80211_band(c);
if (hw->wiphy->bands[band] == NULL)
return (NULL);
nchans = hw->wiphy->bands[band]->n_channels;
if (nchans <= 0)
return (NULL);
channels = hw->wiphy->bands[band]->channels;
for (i = 0; i < nchans; i++) {
if (channels[i].hw_value == c->ic_ieee)
return (&channels[i]);
}
return (NULL);
}
static struct linuxkpi_ieee80211_channel *
lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni)
{
struct linuxkpi_ieee80211_channel *chan;
struct ieee80211_channel *c;
struct lkpi_hw *lhw;
chan = NULL;
if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC)
c = ni->ni_chan;
else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC)
c = ic->ic_bsschan;
else if (ic->ic_curchan != IEEE80211_CHAN_ANYC)
c = ic->ic_curchan;
else
c = NULL;
if (c != NULL && c != IEEE80211_CHAN_ANYC) {
lhw = ic->ic_softc;
chan = lkpi_find_lkpi80211_chan(lhw, c);
}
return (chan);
}
struct linuxkpi_ieee80211_channel *
linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq)
{
enum nl80211_band band;
for (band = 0; band < NUM_NL80211_BANDS; band++) {
struct ieee80211_supported_band *supband;
struct linuxkpi_ieee80211_channel *channels;
int i;
supband = wiphy->bands[band];
if (supband == NULL || supband->n_channels == 0)
continue;
channels = supband->channels;
for (i = 0; i < supband->n_channels; i++) {
if (channels[i].center_freq == freq)
return (&channels[i]);
}
}
return (NULL);
}
#ifdef LKPI_80211_HW_CRYPTO
static int
_lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k,
enum set_key_cmd cmd)
{
struct ieee80211com *ic;
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_sta *sta;
struct ieee80211_node *ni;
struct ieee80211_key_conf *kc;
int error;
/* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */
ic = vap->iv_ic;
lhw = ic->ic_softc;
hw = LHW_TO_HW(lhw);
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
memset(&kc, 0, sizeof(kc));
kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO);
kc->cipher = lkpi_net80211_to_l80211_cipher_suite(
k->wk_cipher->ic_cipher, k->wk_keylen);
kc->keyidx = k->wk_keyix;
#if 0
kc->hw_key_idx = /* set by hw and needs to be passed for TX */;
#endif
atomic64_set(&kc->tx_pn, k->wk_keytsc);
kc->keylen = k->wk_keylen;
memcpy(kc->key, k->wk_key, k->wk_keylen);
switch (kc->cipher) {
case WLAN_CIPHER_SUITE_CCMP:
kc->iv_len = k->wk_cipher->ic_header;
kc->icv_len = k->wk_cipher->ic_trailer;
break;
case WLAN_CIPHER_SUITE_TKIP:
default:
IMPROVE();
return (0);
};
ni = vap->iv_bss;
sta = ieee80211_find_sta(vif, ni->ni_bssid);
if (sta != NULL) {
struct lkpi_sta *lsta;
lsta = STA_TO_LSTA(sta);
lsta->kc = kc;
}
error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc);
if (error != 0) {
/* XXX-BZ leaking kc currently */
ic_printf(ic, "%s: set_key failed: %d\n", __func__, error);
return (0);
} else {
ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u "
"flags %#10x\n", __func__,
kc->keyidx, kc->hw_key_idx, kc->flags);
return (1);
}
}
static int
lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
{
/* XXX-BZ one day we should replace this iterating over VIFs, or node list? */
return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY));
}
static int
lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k)
{
return (_lkpi_iv_key_set_delete(vap, k, SET_KEY));
}
#endif
static u_int
lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt)
{
struct netdev_hw_addr_list *mc_list;
struct netdev_hw_addr *addr;
KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n",
__func__, arg, sdl, cnt));
mc_list = arg;
/* If it is on the list already skip it. */
netdev_hw_addr_list_for_each(addr, mc_list) {
if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen))
return (0);
}
addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO);
if (addr == NULL)
return (0);
INIT_LIST_HEAD(&addr->addr_list);
memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen);
/* XXX this should be a netdev function? */
list_add(&addr->addr_list, &mc_list->addr_list);
mc_list->count++;
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE)
printf("%s:%d: mc_list count %d: added %6D\n",
__func__, __LINE__, mc_list->count, addr->addr, ":");
#endif
return (1);
}
static void
lkpi_update_mcast_filter(struct ieee80211com *ic, bool force)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct netdev_hw_addr_list mc_list;
struct list_head *le, *next;
struct netdev_hw_addr *addr;
struct ieee80211vap *vap;
u64 mc;
unsigned int changed_flags, total_flags;
lhw = ic->ic_softc;
if (lhw->ops->prepare_multicast == NULL ||
lhw->ops->configure_filter == NULL)
return;
if (!lhw->update_mc && !force)
return;
changed_flags = total_flags = 0;
mc_list.count = 0;
INIT_LIST_HEAD(&mc_list.addr_list);
if (ic->ic_allmulti == 0) {
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
if_foreach_llmaddr(vap->iv_ifp,
lkpi_ic_update_mcast_copy, &mc_list);
} else {
changed_flags |= FIF_ALLMULTI;
}
hw = LHW_TO_HW(lhw);
mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list);
/*
* XXX-BZ make sure to get this sorted what is a change,
* what gets all set; what was already set?
*/
total_flags = changed_flags;
lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc);
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE)
printf("%s: changed_flags %#06x count %d total_flags %#010x\n",
__func__, changed_flags, mc_list.count, total_flags);
#endif
if (mc_list.count != 0) {
list_for_each_safe(le, next, &mc_list.addr_list) {
addr = list_entry(le, struct netdev_hw_addr, addr_list);
free(addr, M_LKPI80211);
mc_list.count--;
}
}
KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n",
__func__, &mc_list, mc_list.count));
}
static enum ieee80211_bss_changed
lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni,
struct ieee80211vap *vap, const char *_f, int _l)
{
enum ieee80211_bss_changed bss_changed;
bss_changed = 0;
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE)
printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u "
"dtim_period %u sync_dtim_count %u sync_tsf %ju "
"sync_device_ts %u bss_changed %#08x\n",
__func__, __LINE__, _f, _l,
vif->bss_conf.assoc, vif->bss_conf.aid,
vif->bss_conf.beacon_int, vif->bss_conf.dtim_period,
vif->bss_conf.sync_dtim_count,
(uintmax_t)vif->bss_conf.sync_tsf,
vif->bss_conf.sync_device_ts,
bss_changed);
#endif
if (vif->bss_conf.beacon_int != ni->ni_intval) {
vif->bss_conf.beacon_int = ni->ni_intval;
/* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */
if (vif->bss_conf.beacon_int < 16)
vif->bss_conf.beacon_int = 16;
bss_changed |= BSS_CHANGED_BEACON_INT;
}
if (vif->bss_conf.dtim_period != vap->iv_dtim_period &&
vap->iv_dtim_period > 0) {
vif->bss_conf.dtim_period = vap->iv_dtim_period;
bss_changed |= BSS_CHANGED_BEACON_INFO;
}
vif->bss_conf.sync_dtim_count = vap->iv_dtim_count;
vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf);
/* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE)
printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u "
"dtim_period %u sync_dtim_count %u sync_tsf %ju "
"sync_device_ts %u bss_changed %#08x\n",
__func__, __LINE__, _f, _l,
vif->bss_conf.assoc, vif->bss_conf.aid,
vif->bss_conf.beacon_int, vif->bss_conf.dtim_period,
vif->bss_conf.sync_dtim_count,
(uintmax_t)vif->bss_conf.sync_tsf,
vif->bss_conf.sync_device_ts,
bss_changed);
#endif
return (bss_changed);
}
static void
lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif)
{
struct ieee80211_hw *hw;
int error;
bool cancel;
LKPI_80211_LHW_SCAN_LOCK(lhw);
cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0;
LKPI_80211_LHW_SCAN_UNLOCK(lhw);
if (!cancel)
return;
hw = LHW_TO_HW(lhw);
IEEE80211_UNLOCK(lhw->ic);
LKPI_80211_LHW_LOCK(lhw);
/* Need to cancel the scan. */
lkpi_80211_mo_cancel_hw_scan(hw, vif);
LKPI_80211_LHW_UNLOCK(lhw);
/* Need to make sure we see ieee80211_scan_completed. */
LKPI_80211_LHW_SCAN_LOCK(lhw);
if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0)
error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2);
cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0;
LKPI_80211_LHW_SCAN_UNLOCK(lhw);
IEEE80211_LOCK(lhw->ic);
if (cancel)
ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n",
__func__, error, lhw, vif);
}
static void
lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new)
{
struct lkpi_hw *lhw;
int error;
bool old;
old = hw->conf.flags & IEEE80211_CONF_IDLE;
if (old == new)
return;
hw->conf.flags ^= IEEE80211_CONF_IDLE;
error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE);
if (error != 0 && error != EOPNOTSUPP) {
lhw = HW_TO_LHW(hw);
ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n",
__func__, IEEE80211_CONF_CHANGE_IDLE, error);
}
}
static void
lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif,
struct lkpi_hw *lhw)
{
sta->aid = 0;
if (vif->bss_conf.assoc) {
struct ieee80211_hw *hw;
enum ieee80211_bss_changed changed;
lhw->update_mc = true;
lkpi_update_mcast_filter(lhw->ic, true);
changed = 0;
vif->bss_conf.assoc = false;
vif->bss_conf.aid = 0;
changed |= BSS_CHANGED_ASSOC;
/*
* This will remove the sta from firmware for iwlwifi.
* So confusing that they use state and flags and ... ^%$%#%$^.
*/
IMPROVE();
hw = LHW_TO_HW(lhw);
lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf,
changed);
lkpi_hw_conf_idle(hw, true);
}
}
static void
lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
bool dequeue_seen, bool no_emptyq)
{
struct lkpi_txq *ltxq;
int tid;
/* Wake up all queues to know they are allocated in the driver. */
for (tid = 0; tid < nitems(sta->txq); tid++) {
if (tid == IEEE80211_NUM_TIDS) {
IMPROVE("station specific?");
if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ))
continue;
} else if (tid >= hw->queues)
continue;
if (sta->txq[tid] == NULL)
continue;
ltxq = TXQ_TO_LTXQ(sta->txq[tid]);
if (dequeue_seen && !ltxq->seen_dequeue)
continue;
if (no_emptyq && skb_queue_empty(&ltxq->skbq))
continue;
lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]);
}
}
/* -------------------------------------------------------------------------- */
static int
lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
return (0);
}
/* lkpi_iv_newstate() handles the stop scan case generally. */
#define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a)
static int
lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct linuxkpi_ieee80211_channel *chan;
struct ieee80211_chanctx_conf *conf;
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_node *ni;
struct lkpi_sta *lsta;
enum ieee80211_bss_changed bss_changed;
struct ieee80211_prep_tx_info prep_tx_info;
uint32_t changed;
int error;
chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss);
if (chan == NULL) {
ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__);
return (ESRCH);
}
lhw = vap->iv_ic->ic_softc;
hw = LHW_TO_HW(lhw);
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
ni = ieee80211_ref_node(vap->iv_bss);
IEEE80211_UNLOCK(vap->iv_ic);
LKPI_80211_LHW_LOCK(lhw);
/* Add chanctx (or if exists, change it). */
if (vif->chanctx_conf != NULL) {
conf = vif->chanctx_conf;
IMPROVE("diff changes for changed, working on live copy, rcu");
} else {
/* Keep separate alloc as in Linux this is rcu managed? */
conf = malloc(sizeof(*conf) + hw->chanctx_data_size,
M_LKPI80211, M_WAITOK | M_ZERO);
}
conf->rx_chains_dynamic = 1;
conf->rx_chains_static = 1;
conf->radar_enabled =
(chan->flags & IEEE80211_CHAN_RADAR) ? true : false;
conf->def.chan = chan;
conf->def.width = NL80211_CHAN_WIDTH_20_NOHT;
conf->def.center_freq1 = chan->center_freq;
conf->def.center_freq2 = 0;
/* Responder ... */
conf->min_def.chan = chan;
conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT;
conf->min_def.center_freq1 = chan->center_freq;
conf->min_def.center_freq2 = 0;
IMPROVE("currently 20_NOHT only");
error = 0;
if (vif->chanctx_conf != NULL) {
changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH;
changed |= IEEE80211_CHANCTX_CHANGE_RADAR;
changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS;
changed |= IEEE80211_CHANCTX_CHANGE_WIDTH;
lkpi_80211_mo_change_chanctx(hw, conf, changed);
} else {
error = lkpi_80211_mo_add_chanctx(hw, conf);
if (error == 0 || error == EOPNOTSUPP) {
vif->bss_conf.chandef.chan = conf->def.chan;
vif->bss_conf.chandef.width = conf->def.width;
vif->bss_conf.chandef.center_freq1 =
conf->def.center_freq1;
vif->bss_conf.chandef.center_freq2 =
conf->def.center_freq2;
} else {
goto out;
}
/* Assign vif chanctx. */
if (error == 0)
error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf);
if (error == EOPNOTSUPP)
error = 0;
if (error != 0) {
lkpi_80211_mo_remove_chanctx(hw, conf);
free(conf, M_LKPI80211);
goto out;
}
}
IMPROVE("update radiotap chan fields too");
/* Set bss info (bss_info_changed). */
bss_changed = 0;
vif->bss_conf.bssid = ni->ni_bssid;
bss_changed |= BSS_CHANGED_BSSID;
vif->bss_conf.txpower = ni->ni_txpower;
bss_changed |= BSS_CHANGED_TXPOWER;
vif->bss_conf.idle = false;
bss_changed |= BSS_CHANGED_IDLE;
/* Should almost assert it is this. */
vif->bss_conf.assoc = false;
vif->bss_conf.aid = 0;
bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__);
/* RATES */
IMPROVE("bss info: not all needs to come now and rates are missing");
lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed);
/*
* This is a bandaid for now. If we went through (*iv_update_bss)()
* and then removed the lsta we end up here without a lsta and have
* to manually allocate and link it in as lkpi_ic_node_alloc()/init()
* would normally do.
* XXX-BZ I do not like this but currently we have no good way of
* intercepting the bss swap and state changes and packets going out
* workflow so live with this. It is a compat layer after all.
*/
if (ni->ni_drv_data == NULL) {
lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni);
if (lsta == NULL) {
error = ENOMEM;
goto out;
}
lsta->ni = ieee80211_ref_node(ni);
} else {
lsta = ni->ni_drv_data;
}
/* Insert the [l]sta into the list of known stations. */
LKPI_80211_LVIF_LOCK(lvif);
TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry);
LKPI_80211_LVIF_UNLOCK(lvif);
/* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not "
"NOTEXIST: %#x\n", __func__, lsta, lsta->state));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE);
if (error != 0) {
IMPROVE("do we need to undo the chan ctx?");
goto out;
}
#if 0
lsta->added_to_drv = true; /* mo manages. */
#endif
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
/*
* Wakeup all queues now that sta is there so we have as much time to
* possibly prepare the queue in the driver to be ready for the 1st
* packet; lkpi_80211_txq_tx_one() still has a workaround as there
* is no guarantee or way to check.
* XXX-BZ and by now we know that this does not work on all drivers
* for all queues.
*/
lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false);
/* Start mgd_prepare_tx. */
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.duration = PREP_TX_INFO_DURATION;
lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = true;
/*
* What is going to happen next:
* - <twiddle> .. we should end up in "auth_to_assoc"
* - event_callback
* - update sta_state (NONE to AUTH)
* - mgd_complete_tx
* (ideally we'd do that on a callback for something else ...)
*/
out:
LKPI_80211_LHW_UNLOCK(lhw);
IEEE80211_LOCK(vap->iv_ic);
if (ni != NULL)
ieee80211_free_node(ni);
return (error);
}
static int
lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_node *ni;
struct lkpi_sta *lsta;
struct ieee80211_sta *sta;
struct ieee80211_prep_tx_info prep_tx_info;
int error;
lhw = vap->iv_ic->ic_softc;
hw = LHW_TO_HW(lhw);
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
/* Keep ni around. */
ni = ieee80211_ref_node(vap->iv_bss);
lsta = ni->ni_drv_data;
sta = LSTA_TO_STA(lsta);
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
IEEE80211_UNLOCK(vap->iv_ic);
LKPI_80211_LHW_LOCK(lhw);
/* flush, drop. */
lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true);
/* Wake tx queues to get packet(s) out. */
lkpi_wake_tx_queues(hw, sta, true, true);
/* flush, no drop */
lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false);
/* End mgd_complete_tx. */
if (lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.success = false;
lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = false;
}
/* sync_rx_queues */
lkpi_80211_mo_sync_rx_queues(hw);
/* sta_pre_rcu_remove */
lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta);
/* Take the station down. */
/* Adjust sta and change state (from NONE) to NOTEXIST. */
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not "
"NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST);
if (error != 0) {
IMPROVE("do we need to undo the chan ctx?");
goto out;
}
#if 0
lsta->added_to_drv = false; /* mo manages. */
#endif
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
lkpi_lsta_remove(lsta, lvif);
/* conf_tx */
/* Take the chan ctx down. */
if (vif->chanctx_conf != NULL) {
struct ieee80211_chanctx_conf *conf;
conf = vif->chanctx_conf;
/* Remove vif context. */
lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf);
/* NB: vif->chanctx_conf is NULL now. */
/* Remove chan ctx. */
lkpi_80211_mo_remove_chanctx(hw, conf);
free(conf, M_LKPI80211);
}
out:
LKPI_80211_LHW_UNLOCK(lhw);
IEEE80211_LOCK(vap->iv_ic);
if (ni != NULL)
ieee80211_free_node(ni);
return (error);
}
static int
lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
int error;
error = lkpi_sta_auth_to_scan(vap, nstate, arg);
if (error == 0)
error = lkpi_sta_scan_to_init(vap, nstate, arg);
return (error);
}
static int
lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_node *ni;
struct lkpi_sta *lsta;
struct ieee80211_prep_tx_info prep_tx_info;
int error;
lhw = vap->iv_ic->ic_softc;
hw = LHW_TO_HW(lhw);
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
IEEE80211_UNLOCK(vap->iv_ic);
LKPI_80211_LHW_LOCK(lhw);
ni = NULL;
/* Finish auth. */
IMPROVE("event callback");
/* Update sta_state (NONE to AUTH). */
ni = ieee80211_ref_node(vap->iv_bss);
lsta = ni->ni_drv_data;
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not "
"NONE: %#x\n", __func__, lsta, lsta->state));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH);
if (error != 0)
goto out;
/* End mgd_complete_tx. */
if (lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.success = true;
lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = false;
}
/* Now start assoc. */
/* Start mgd_prepare_tx. */
if (!lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.duration = PREP_TX_INFO_DURATION;
lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = true;
}
/* Wake tx queue to get packet out. */
lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), true, true);
/*
* <twiddle> .. we end up in "assoc_to_run"
* - update sta_state (AUTH to ASSOC)
* - conf_tx [all]
* - bss_info_changed (assoc, aid, ssid, ..)
* - change_chanctx (if needed)
* - event_callback
* - mgd_complete_tx
*/
out:
LKPI_80211_LHW_UNLOCK(lhw);
IEEE80211_LOCK(vap->iv_ic);
if (ni != NULL)
ieee80211_free_node(ni);
return (error);
}
/* auth_to_auth, assoc_to_assoc. */
static int
lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_node *ni;
struct lkpi_sta *lsta;
struct ieee80211_prep_tx_info prep_tx_info;
lhw = vap->iv_ic->ic_softc;
hw = LHW_TO_HW(lhw);
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
ni = ieee80211_ref_node(vap->iv_bss);
IEEE80211_UNLOCK(vap->iv_ic);
LKPI_80211_LHW_LOCK(lhw);
lsta = ni->ni_drv_data;
IMPROVE("event callback?");
/* End mgd_complete_tx. */
if (lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.success = false;
lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = false;
}
/* Now start assoc. */
/* Start mgd_prepare_tx. */
if (!lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.duration = PREP_TX_INFO_DURATION;
lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = true;
}
LKPI_80211_LHW_UNLOCK(lhw);
IEEE80211_LOCK(vap->iv_ic);
if (ni != NULL)
ieee80211_free_node(ni);
return (0);
}
static int
_lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_node *ni;
struct lkpi_sta *lsta;
struct ieee80211_sta *sta;
struct ieee80211_prep_tx_info prep_tx_info;
enum ieee80211_bss_changed bss_changed;
int error;
lhw = vap->iv_ic->ic_softc;
hw = LHW_TO_HW(lhw);
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
/* Keep ni around. */
ni = ieee80211_ref_node(vap->iv_bss);
lsta = ni->ni_drv_data;
sta = LSTA_TO_STA(lsta);
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
IEEE80211_UNLOCK(vap->iv_ic);
LKPI_80211_LHW_LOCK(lhw);
/* flush, drop. */
lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true);
IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?");
if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) &&
!lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.duration = PREP_TX_INFO_DURATION;
lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = true;
}
LKPI_80211_LHW_UNLOCK(lhw);
IEEE80211_LOCK(vap->iv_ic);
/* Call iv_newstate first so we get potential DISASSOC packet out. */
error = lvif->iv_newstate(vap, nstate, arg);
if (error != 0)
goto outni;
IEEE80211_UNLOCK(vap->iv_ic);
LKPI_80211_LHW_LOCK(lhw);
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
/* Wake tx queues to get packet(s) out. */
lkpi_wake_tx_queues(hw, sta, true, true);
/* flush, no drop */
lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false);
/* End mgd_complete_tx. */
if (lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.success = false;
lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = false;
}
/* sync_rx_queues */
lkpi_80211_mo_sync_rx_queues(hw);
/* sta_pre_rcu_remove */
lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta);
/* Take the station down. */
/* Update sta and change state (from AUTH) to NONE. */
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not "
"AUTH: %#x\n", __func__, lsta, lsta->state));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE);
if (error != 0)
goto out;
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
/* Adjust sta and change state (from NONE) to NOTEXIST. */
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not "
"NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST);
if (error != 0) {
IMPROVE("do we need to undo the chan ctx?");
goto out;
}
#if 0
lsta->added_to_drv = false; /* mo manages. */
#endif
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
/* Update bss info (bss_info_changed) (assoc, aid, ..). */
/* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */
lkpi_disassoc(sta, vif, lhw);
IMPROVE("Any bss_info changes to announce?");
bss_changed = 0;
vif->bss_conf.qos = 0;
bss_changed |= BSS_CHANGED_QOS;
vif->bss_conf.ssid_len = 0;
memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid));
bss_changed |= BSS_CHANGED_BSSID;
lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed);
lkpi_lsta_remove(lsta, lvif);
/* conf_tx */
/* Take the chan ctx down. */
if (vif->chanctx_conf != NULL) {
struct ieee80211_chanctx_conf *conf;
conf = vif->chanctx_conf;
/* Remove vif context. */
lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf);
/* NB: vif->chanctx_conf is NULL now. */
/* Remove chan ctx. */
lkpi_80211_mo_remove_chanctx(hw, conf);
free(conf, M_LKPI80211);
}
error = EALREADY;
out:
LKPI_80211_LHW_UNLOCK(lhw);
IEEE80211_LOCK(vap->iv_ic);
outni:
if (ni != NULL)
ieee80211_free_node(ni);
return (error);
}
static int
lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
int error;
error = _lkpi_sta_assoc_to_down(vap, nstate, arg);
if (error != 0 && error != EALREADY)
return (error);
/* At this point iv_bss is long a new node! */
error |= lkpi_sta_scan_to_auth(vap, nstate, 0);
return (error);
}
static int
lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
int error;
error = _lkpi_sta_assoc_to_down(vap, nstate, arg);
return (error);
}
static int
lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
int error;
error = _lkpi_sta_assoc_to_down(vap, nstate, arg);
return (error);
}
static int
lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_node *ni;
struct lkpi_sta *lsta;
struct ieee80211_sta *sta;
struct ieee80211_prep_tx_info prep_tx_info;
enum ieee80211_bss_changed bss_changed;
int error;
lhw = vap->iv_ic->ic_softc;
hw = LHW_TO_HW(lhw);
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
IEEE80211_UNLOCK(vap->iv_ic);
LKPI_80211_LHW_LOCK(lhw);
ni = NULL;
IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, "
"and to lesser extend ieee80211_notify_node_join");
/* Finish assoc. */
/* Update sta_state (AUTH to ASSOC) and set aid. */
ni = ieee80211_ref_node(vap->iv_bss);
lsta = ni->ni_drv_data;
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not "
"AUTH: %#x\n", __func__, lsta, lsta->state));
sta = LSTA_TO_STA(lsta);
sta->aid = IEEE80211_NODE_AID(ni);
#ifdef LKPI_80211_WME
if (vap->iv_flags & IEEE80211_F_WME)
sta->wme = true;
#endif
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC);
if (error != 0)
goto out;
IMPROVE("wme / conf_tx [all]");
/* Update bss info (bss_info_changed) (assoc, aid, ..). */
bss_changed = 0;
#ifdef LKPI_80211_WME
bss_changed |= lkpi_wme_update(lhw, vap, true);
#endif
if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) {
vif->bss_conf.assoc = true;
vif->bss_conf.aid = IEEE80211_NODE_AID(ni);
bss_changed |= BSS_CHANGED_ASSOC;
}
/* We set SSID but this is not BSSID! */
vif->bss_conf.ssid_len = ni->ni_esslen;
memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen);
if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) !=
vif->bss_conf.use_short_preamble) {
vif->bss_conf.use_short_preamble ^= 1;
/* bss_changed |= BSS_CHANGED_??? */
}
if ((vap->iv_flags & IEEE80211_F_SHSLOT) !=
vif->bss_conf.use_short_slot) {
vif->bss_conf.use_short_slot ^= 1;
/* bss_changed |= BSS_CHANGED_??? */
}
if ((ni->ni_flags & IEEE80211_NODE_QOS) !=
vif->bss_conf.qos) {
vif->bss_conf.qos ^= 1;
bss_changed |= BSS_CHANGED_QOS;
}
bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__);
lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed);
/* - change_chanctx (if needed)
* - event_callback
*/
/* End mgd_complete_tx. */
if (lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.success = true;
lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = false;
}
lkpi_hw_conf_idle(hw, false);
/*
* And then:
* - (more packets)?
* - set_key
* - set_default_unicast_key
* - set_key (?)
* - ipv6_addr_change (?)
*/
/* Prepare_multicast && configure_filter. */
lhw->update_mc = true;
lkpi_update_mcast_filter(vap->iv_ic, true);
if (!ieee80211_node_is_authorized(ni)) {
IMPROVE("net80211 does not consider node authorized");
}
/* Update sta_state (ASSOC to AUTHORIZED). */
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not "
"ASSOC: %#x\n", __func__, lsta, lsta->state));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED);
if (error != 0) {
IMPROVE("undo some changes?");
goto out;
}
/* - drv_config (?)
* - bss_info_changed
* - set_rekey_data (?)
*
* And now we should be passing packets.
*/
IMPROVE("Need that bssid setting, and the keys");
bss_changed = 0;
bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__);
lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed);
out:
LKPI_80211_LHW_UNLOCK(lhw);
IEEE80211_LOCK(vap->iv_ic);
if (ni != NULL)
ieee80211_free_node(ni);
return (error);
}
static int
lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
int error;
error = lkpi_sta_auth_to_assoc(vap, nstate, arg);
if (error == 0)
error = lkpi_sta_assoc_to_run(vap, nstate, arg);
return (error);
}
static int
lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_node *ni;
struct lkpi_sta *lsta;
struct ieee80211_sta *sta;
struct ieee80211_prep_tx_info prep_tx_info;
#if 0
enum ieee80211_bss_changed bss_changed;
#endif
int error;
lhw = vap->iv_ic->ic_softc;
hw = LHW_TO_HW(lhw);
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
/* Keep ni around. */
ni = ieee80211_ref_node(vap->iv_bss);
lsta = ni->ni_drv_data;
sta = LSTA_TO_STA(lsta);
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
IEEE80211_UNLOCK(vap->iv_ic);
LKPI_80211_LHW_LOCK(lhw);
/* flush, drop. */
lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true);
IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?");
if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) &&
!lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.duration = PREP_TX_INFO_DURATION;
lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = true;
}
LKPI_80211_LHW_UNLOCK(lhw);
IEEE80211_LOCK(vap->iv_ic);
/* Call iv_newstate first so we get potential DISASSOC packet out. */
error = lvif->iv_newstate(vap, nstate, arg);
if (error != 0)
goto outni;
IEEE80211_UNLOCK(vap->iv_ic);
LKPI_80211_LHW_LOCK(lhw);
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
/* Wake tx queues to get packet(s) out. */
lkpi_wake_tx_queues(hw, sta, true, true);
/* flush, no drop */
lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false);
/* End mgd_complete_tx. */
if (lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.success = false;
lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = false;
}
#if 0
/* sync_rx_queues */
lkpi_80211_mo_sync_rx_queues(hw);
/* sta_pre_rcu_remove */
lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta);
#endif
/* Take the station down. */
/* Adjust sta and change state (from AUTHORIZED) to ASSOC. */
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not "
"AUTHORIZED: %#x\n", __func__, lsta, lsta->state));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC);
if (error != 0)
goto out;
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
/* Update sta_state (ASSOC to AUTH). */
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not "
"ASSOC: %#x\n", __func__, lsta, lsta->state));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH);
if (error != 0)
goto out;
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
#if 0
/* Update bss info (bss_info_changed) (assoc, aid, ..). */
lkpi_disassoc(sta, vif, lhw);
#endif
error = EALREADY;
out:
LKPI_80211_LHW_UNLOCK(lhw);
IEEE80211_LOCK(vap->iv_ic);
outni:
if (ni != NULL)
ieee80211_free_node(ni);
return (error);
}
static int
lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_node *ni;
struct lkpi_sta *lsta;
struct ieee80211_sta *sta;
struct ieee80211_prep_tx_info prep_tx_info;
enum ieee80211_bss_changed bss_changed;
int error;
lhw = vap->iv_ic->ic_softc;
hw = LHW_TO_HW(lhw);
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
/* Keep ni around. */
ni = ieee80211_ref_node(vap->iv_bss);
lsta = ni->ni_drv_data;
sta = LSTA_TO_STA(lsta);
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
IEEE80211_UNLOCK(vap->iv_ic);
LKPI_80211_LHW_LOCK(lhw);
/* flush, drop. */
lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true);
IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?");
if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) &&
!lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.duration = PREP_TX_INFO_DURATION;
lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = true;
}
LKPI_80211_LHW_UNLOCK(lhw);
IEEE80211_LOCK(vap->iv_ic);
/* Call iv_newstate first so we get potential DISASSOC packet out. */
error = lvif->iv_newstate(vap, nstate, arg);
if (error != 0)
goto outni;
IEEE80211_UNLOCK(vap->iv_ic);
LKPI_80211_LHW_LOCK(lhw);
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
/* Wake tx queues to get packet(s) out. */
lkpi_wake_tx_queues(hw, sta, true, true);
/* flush, no drop */
lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false);
/* End mgd_complete_tx. */
if (lsta->in_mgd) {
memset(&prep_tx_info, 0, sizeof(prep_tx_info));
prep_tx_info.success = false;
lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info);
lsta->in_mgd = false;
}
/* sync_rx_queues */
lkpi_80211_mo_sync_rx_queues(hw);
/* sta_pre_rcu_remove */
lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta);
/* Take the station down. */
/* Adjust sta and change state (from AUTHORIZED) to ASSOC. */
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not "
"AUTHORIZED: %#x\n", __func__, lsta, lsta->state));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC);
if (error != 0)
goto out;
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
/* Update sta_state (ASSOC to AUTH). */
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not "
"ASSOC: %#x\n", __func__, lsta, lsta->state));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH);
if (error != 0)
goto out;
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
/* Update sta and change state (from AUTH) to NONE. */
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not "
"AUTH: %#x\n", __func__, lsta, lsta->state));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE);
if (error != 0)
goto out;
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
/* Adjust sta and change state (from NONE) to NOTEXIST. */
KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni));
KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not "
"NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg));
error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST);
if (error != 0) {
IMPROVE("do we need to undo the chan ctx?");
goto out;
}
#if 0
lsta->added_to_drv = false; /* mo manages. */
#endif
lkpi_lsta_dump(lsta, ni, __func__, __LINE__);
/* Update bss info (bss_info_changed) (assoc, aid, ..). */
/*
* One would expect this to happen when going off AUTHORIZED.
* See comment there; removes the sta from fw.
*/
lkpi_disassoc(sta, vif, lhw);
IMPROVE("Any bss_info changes to announce?");
bss_changed = 0;
vif->bss_conf.qos = 0;
bss_changed |= BSS_CHANGED_QOS;
vif->bss_conf.ssid_len = 0;
memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid));
bss_changed |= BSS_CHANGED_BSSID;
lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed);
lkpi_lsta_remove(lsta, lvif);
/* conf_tx */
/* Take the chan ctx down. */
if (vif->chanctx_conf != NULL) {
struct ieee80211_chanctx_conf *conf;
conf = vif->chanctx_conf;
/* Remove vif context. */
lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf);
/* NB: vif->chanctx_conf is NULL now. */
/* Remove chan ctx. */
lkpi_80211_mo_remove_chanctx(hw, conf);
free(conf, M_LKPI80211);
}
error = EALREADY;
out:
LKPI_80211_LHW_UNLOCK(lhw);
IEEE80211_LOCK(vap->iv_ic);
outni:
if (ni != NULL)
ieee80211_free_node(ni);
return (error);
}
static int
lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
return (lkpi_sta_run_to_init(vap, nstate, arg));
}
static int
lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
int error;
error = lkpi_sta_run_to_init(vap, nstate, arg);
if (error != 0 && error != EALREADY)
return (error);
/* At this point iv_bss is long a new node! */
error |= lkpi_sta_scan_to_auth(vap, nstate, 0);
return (error);
}
/* -------------------------------------------------------------------------- */
/*
* The matches the documented state changes in net80211::sta_newstate().
* XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases
* there are "invalid" (so there is a room for failure here).
*/
struct fsm_state {
/* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */
enum ieee80211_state ostate;
enum ieee80211_state nstate;
int (*handler)(struct ieee80211vap *, enum ieee80211_state, int);
} sta_state_fsm[] = {
{ IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada },
{ IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */
{ IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */
{ IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */
{ IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */
{ IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada },
{ IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada },
{ IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan },
{ IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan },
{ IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */
{ IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */
{ IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */
{ IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */
{ IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */
{ IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */
{ IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */
{ IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */
{ IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */
{ IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run },
{ IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run },
{ IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada },
/* Dummy at the end without handler. */
{ IEEE80211_S_INIT, IEEE80211_S_INIT, NULL },
};
static int
lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct ieee80211com *ic;
struct lkpi_hw *lhw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct fsm_state *s;
enum ieee80211_state ostate;
int error;
ic = vap->iv_ic;
IEEE80211_LOCK_ASSERT(ic);
ostate = vap->iv_state;
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE)
ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n",
__func__, __LINE__, vap, nstate, arg);
#endif
if (vap->iv_opmode == IEEE80211_M_STA) {
lhw = ic->ic_softc;
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
/* No need to replicate this in most state handlers. */
if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN)
lkpi_stop_hw_scan(lhw, vif);
s = sta_state_fsm;
} else {
ic_printf(vap->iv_ic, "%s: only station mode currently supported: "
"cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode);
return (ENOSYS);
}
error = 0;
for (; s->handler != NULL; s++) {
if (ostate == s->ostate && nstate == s->nstate) {
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE)
ic_printf(vap->iv_ic, "%s: new state %d (%s) ->"
" %d (%s): arg %d.\n", __func__,
ostate, ieee80211_state_name[ostate],
nstate, ieee80211_state_name[nstate], arg);
#endif
error = s->handler(vap, nstate, arg);
break;
}
}
IEEE80211_LOCK_ASSERT(vap->iv_ic);
if (s->handler == NULL) {
IMPROVE("turn this into a KASSERT\n");
ic_printf(vap->iv_ic, "%s: unsupported state transition "
"%d (%s) -> %d (%s)\n", __func__,
ostate, ieee80211_state_name[ostate],
nstate, ieee80211_state_name[nstate]);
return (ENOSYS);
}
if (error == EALREADY) {
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE)
ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> "
"%d (%s): iv_newstate already handled: %d.\n",
__func__, ostate, ieee80211_state_name[ostate],
nstate, ieee80211_state_name[nstate], error);
#endif
return (0);
}
if (error != 0) {
/* XXX-BZ currently expected so ignore. */
ic_printf(vap->iv_ic, "%s: error %d during state transition "
"%d (%s) -> %d (%s)\n", __func__, error,
ostate, ieee80211_state_name[ostate],
nstate, ieee80211_state_name[nstate]);
/* return (error); */
}
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE)
ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x "
"calling net80211 parent\n",
__func__, __LINE__, vap, nstate, arg);
#endif
return (lvif->iv_newstate(vap, nstate, arg));
}
/* -------------------------------------------------------------------------- */
/*
* We overload (*iv_update_bss) as otherwise we have cases in, e.g.,
* net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a
* new node without us knowing and thus our ni/lsta are out of sync.
*/
static struct ieee80211_node *
lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni)
{
struct lkpi_vif *lvif;
struct ieee80211_node *obss;
struct lkpi_sta *lsta;
struct ieee80211_sta *sta;
obss = vap->iv_bss;
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE)
ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p "
"ni %p ni_drv_data %p\n", __func__,
obss, (obss != NULL) ? obss->ni_drv_data : NULL,
ni, (ni != NULL) ? ni->ni_drv_data : NULL);
#endif
/* Nothing to copy from. Just return. */
if (obss == NULL || obss->ni_drv_data == NULL)
goto out;
/* Nothing to copy to. Just return. */
IMPROVE("clearing the obss might still be needed?");
if (ni == NULL)
goto out;
/* Nothing changed? panic? */
if (obss == ni)
goto out;
lsta = obss->ni_drv_data;
obss->ni_drv_data = ni->ni_drv_data;
ni->ni_drv_data = lsta;
if (lsta != NULL) {
lsta->ni = ni;
sta = LSTA_TO_STA(lsta);
IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr);
}
lsta = obss->ni_drv_data;
if (lsta != NULL) {
lsta->ni = obss;
sta = LSTA_TO_STA(lsta);
IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr);
}
out:
lvif = VAP_TO_LVIF(vap);
return (lvif->iv_update_bss(vap, ni));
}
#ifdef LKPI_80211_WME
static int
lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned)
{
struct ieee80211com *ic;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct chanAccParams chp;
struct wmeParams wmeparr[WME_NUM_AC];
struct ieee80211_tx_queue_params txqp;
enum ieee80211_bss_changed changed;
int error;
uint16_t ac;
IMPROVE();
KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != "
"IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS));
if (vap == NULL)
return (0);
if ((vap->iv_flags & IEEE80211_F_WME) == 0)
return (0);
if (lhw->ops->conf_tx == NULL)
return (0);
if (!planned && (vap->iv_state != IEEE80211_S_RUN)) {
lhw->update_wme = true;
return (0);
}
lhw->update_wme = false;
ic = lhw->ic;
ieee80211_wme_ic_getparams(ic, &chp);
IEEE80211_LOCK(ic);
for (ac = 0; ac < WME_NUM_AC; ac++)
wmeparr[ac] = chp.cap_wmeParams[ac];
IEEE80211_UNLOCK(ic);
hw = LHW_TO_HW(lhw);
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
/* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */
LKPI_80211_LHW_LOCK(lhw);
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
struct wmeParams *wmep;
wmep = &wmeparr[ac];
bzero(&txqp, sizeof(txqp));
txqp.cw_min = wmep->wmep_logcwmin;
txqp.cw_max = wmep->wmep_logcwmax;
txqp.txop = wmep->wmep_txopLimit;
txqp.aifs = wmep->wmep_aifsn;
error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp);
if (error != 0)
ic_printf(ic, "%s: conf_tx ac %u failed %d\n",
__func__, ac, error);
}
LKPI_80211_LHW_UNLOCK(lhw);
changed = BSS_CHANGED_QOS;
if (!planned)
lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed);
return (changed);
}
#endif
static int
lkpi_ic_wme_update(struct ieee80211com *ic)
{
#ifdef LKPI_80211_WME
struct ieee80211vap *vap;
struct lkpi_hw *lhw;
IMPROVE("Use the per-VAP callback in net80211.");
vap = TAILQ_FIRST(&ic->ic_vaps);
if (vap == NULL)
return (0);
lhw = ic->ic_softc;
lkpi_wme_update(lhw, vap, false);
#endif
return (0); /* unused */
}
static struct ieee80211vap *
lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ],
int unit, enum ieee80211_opmode opmode, int flags,
const uint8_t bssid[IEEE80211_ADDR_LEN],
const uint8_t mac[IEEE80211_ADDR_LEN])
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211vap *vap;
struct ieee80211_vif *vif;
enum ieee80211_bss_changed changed;
size_t len;
int error, i;
if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */
return (NULL);
lhw = ic->ic_softc;
hw = LHW_TO_HW(lhw);
len = sizeof(*lvif);
len += hw->vif_data_size; /* vif->drv_priv */
lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO);
mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF);
TAILQ_INIT(&lvif->lsta_head);
vap = LVIF_TO_VAP(lvif);
vif = LVIF_TO_VIF(lvif);
memcpy(vif->addr, mac, IEEE80211_ADDR_LEN);
vif->p2p = false;
vif->probe_req_reg = false;
vif->type = lkpi_opmode_to_vif_type(opmode);
lvif->wdev.iftype = vif->type;
/* Need to fill in other fields as well. */
IMPROVE();
/* XXX-BZ hardcoded for now! */
#if 1
vif->chanctx_conf = NULL;
vif->bss_conf.idle = true;
vif->bss_conf.ps = false;
vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */
vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */
vif->bss_conf.qos = false;
vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */
vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
vif->bss_conf.assoc = false;
vif->bss_conf.aid = 0;
/*
* We need to initialize it to something as the bss_info_changed call
* will try to copy from it in iwlwifi and NULL is a panic.
* We will set the proper one in scan_to_auth() before being assoc.
* NB: the logic there with using an array as bssid_override and checking
* for non-NULL later is flawed but in their workflow does not seem to
* matter.
*/
vif->bss_conf.bssid = zerobssid;
#endif
#if 0
vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */
IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid);
vif->bss_conf.beacon_int = ic->ic_bintval;
/* iwlwifi bug. */
if (vif->bss_conf.beacon_int < 16)
vif->bss_conf.beacon_int = 16;
#endif
/* Setup queue defaults; driver may override in (*add_interface). */
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
if (ieee80211_hw_check(hw, QUEUE_CONTROL))
vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE;
else if (hw->queues >= IEEE80211_NUM_ACS)
vif->hw_queue[i] = i;
else
vif->hw_queue[i] = 0;
/* Initialize the queue to running. Stopped? */
lvif->hw_queue_stopped[i] = false;
}
vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
IMPROVE();
error = lkpi_80211_mo_start(hw);
if (error != 0) {
ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error);
mtx_destroy(&lvif->mtx);
free(lvif, M_80211_VAP);
return (NULL);
}
error = lkpi_80211_mo_add_interface(hw, vif);
if (error != 0) {
IMPROVE(); /* XXX-BZ mo_stop()? */
ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error);
mtx_destroy(&lvif->mtx);
free(lvif, M_80211_VAP);
return (NULL);
}
LKPI_80211_LHW_LVIF_LOCK(lhw);
TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry);
LKPI_80211_LHW_LVIF_UNLOCK(lhw);
/* Set bss_info. */
changed = 0;
lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed);
/* conf_tx setup; default WME? */
/* Force MC init. */
lkpi_update_mcast_filter(ic, true);
IMPROVE();
ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
/* Override with LinuxKPI method so we can drive mac80211/cfg80211. */
lvif->iv_newstate = vap->iv_newstate;
vap->iv_newstate = lkpi_iv_newstate;
lvif->iv_update_bss = vap->iv_update_bss;
vap->iv_update_bss = lkpi_iv_update_bss;
/* Key management. */
if (lhw->ops->set_key != NULL) {
#ifdef LKPI_80211_HW_CRYPTO
vap->iv_key_set = lkpi_iv_key_set;
vap->iv_key_delete = lkpi_iv_key_delete;
#endif
}
ieee80211_ratectl_init(vap);
/* Complete setup. */
ieee80211_vap_attach(vap, ieee80211_media_change,
ieee80211_media_status, mac);
if (hw->max_listen_interval == 0)
hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval);
hw->conf.listen_interval = hw->max_listen_interval;
ic->ic_set_channel(ic);
/* XXX-BZ do we need to be able to update these? */
hw->wiphy->frag_threshold = vap->iv_fragthreshold;
lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold);
hw->wiphy->rts_threshold = vap->iv_rtsthreshold;
lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold);
/* any others? */
IMPROVE();
return (vap);
}
void
linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw)
{
wiphy_unregister(hw->wiphy);
linuxkpi_ieee80211_ifdetach(hw);
IMPROVE();
}
void
linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw)
{
TODO();
}
static void
lkpi_ic_vap_delete(struct ieee80211vap *vap)
{
struct ieee80211com *ic;
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
ic = vap->iv_ic;
lhw = ic->ic_softc;
hw = LHW_TO_HW(lhw);
LKPI_80211_LHW_LVIF_LOCK(lhw);
TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry);
LKPI_80211_LHW_LVIF_UNLOCK(lhw);
lkpi_80211_mo_remove_interface(hw, vif);
ieee80211_ratectl_deinit(vap);
ieee80211_vap_detach(vap);
mtx_destroy(&lvif->mtx);
free(lvif, M_80211_VAP);
}
static void
lkpi_ic_update_mcast(struct ieee80211com *ic)
{
lkpi_update_mcast_filter(ic, false);
TRACEOK();
}
static void
lkpi_ic_update_promisc(struct ieee80211com *ic)
{
UNIMPLEMENTED;
}
static void
lkpi_ic_update_chw(struct ieee80211com *ic)
{
UNIMPLEMENTED;
}
/* Start / stop device. */
static void
lkpi_ic_parent(struct ieee80211com *ic)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
int error;
bool start_all;
IMPROVE();
lhw = ic->ic_softc;
hw = LHW_TO_HW(lhw);
start_all = false;
/* IEEE80211_UNLOCK(ic); */
LKPI_80211_LHW_LOCK(lhw);
if (ic->ic_nrunning > 0) {
error = lkpi_80211_mo_start(hw);
if (error == 0)
start_all = true;
} else {
lkpi_80211_mo_stop(hw);
}
LKPI_80211_LHW_UNLOCK(lhw);
/* IEEE80211_LOCK(ic); */
if (start_all)
ieee80211_start_all(ic);
}
bool
linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids,
size_t ie_ids_len)
{
int i;
for (i = 0; i < ie_ids_len; i++) {
if (ie == *ie_ids)
return (true);
}
return (false);
}
/* Return true if skipped; false if error. */
bool
linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len)
{
size_t x;
uint8_t l;
x = *xp;
KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n",
__func__, x, ies_len, ies));
l = ies[x + 1];
x += 2 + l;
if (x > ies_len)
return (false);
*xp = x;
return (true);
}
static uint8_t *
lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies,
uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw)
{
struct ieee80211_supported_band *supband;
struct linuxkpi_ieee80211_channel *channels;
struct ieee80211com *ic;
const struct ieee80211_channel *chan;
const struct ieee80211_rateset *rs;
uint8_t *pb;
int band, i;
ic = vap->iv_ic;
for (band = 0; band < NUM_NL80211_BANDS; band++) {
if ((band_mask & (1 << band)) == 0)
continue;
supband = hw->wiphy->bands[band];
/*
* This should not happen;
* band_mask is a bitmask of valid bands to scan on.
*/
if (supband == NULL || supband->n_channels == 0)
continue;
/* Find a first channel to get the mode and rates from. */
channels = supband->channels;
chan = NULL;
for (i = 0; i < supband->n_channels; i++) {
if (channels[i].flags & IEEE80211_CHAN_DISABLED)
continue;
chan = ieee80211_find_channel(ic,
channels[i].center_freq, 0);
if (chan != NULL)
break;
}
/* This really should not happen. */
if (chan == NULL)
continue;
pb = p;
rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */
p = ieee80211_add_rates(p, rs);
p = ieee80211_add_xrates(p, rs);
#if defined(LKPI_80211_HT)
if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) {
struct ieee80211_channel *c;
c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan,
vap->iv_flags_ht);
p = ieee80211_add_htcap_ch(p, vap, c);
}
#endif
#if defined(LKPI_80211_VHT)
if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) {
struct ieee80211_channel *c;
c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan,
vap->iv_flags_ht);
c = ieee80211_vht_adjust_channel(ic, c,
vap->iv_vht_flags);
p = ieee80211_add_vhtcap_ch(p, vap, c);
}
#endif
scan_ies->ies[band] = pb;
scan_ies->len[band] = p - pb;
}
/* Add common_ies */
pb = p;
if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 &&
vap->iv_wpa_ie != NULL) {
memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]);
p += 2 + vap->iv_wpa_ie[1];
}
if (vap->iv_appie_probereq != NULL) {
memcpy(p, vap->iv_appie_probereq->ie_data,
vap->iv_appie_probereq->ie_len);
p += vap->iv_appie_probereq->ie_len;
}
scan_ies->common_ies = pb;
scan_ies->common_ie_len = p - pb;
return (p);
}
static void
lkpi_ic_scan_start(struct ieee80211com *ic)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_scan_state *ss;
struct ieee80211vap *vap;
int error;
bool is_hw_scan;
lhw = ic->ic_softc;
LKPI_80211_LHW_SCAN_LOCK(lhw);
if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) {
/* A scan is still running. */
LKPI_80211_LHW_SCAN_UNLOCK(lhw);
return;
}
is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0;
LKPI_80211_LHW_SCAN_UNLOCK(lhw);
ss = ic->ic_scan;
vap = ss->ss_vap;
if (vap->iv_state != IEEE80211_S_SCAN) {
IMPROVE("We need to be able to scan if not in S_SCAN");
return;
}
hw = LHW_TO_HW(lhw);
if (!is_hw_scan) {
/* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */
vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD;
sw_scan:
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
if (vap->iv_state == IEEE80211_S_SCAN)
lkpi_hw_conf_idle(hw, false);
lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr);
/* net80211::scan_start() handled PS for us. */
IMPROVE();
/* XXX Also means it is too late to flush queues?
* need to check iv_sta_ps or overload? */
/* XXX want to adjust ss end time/ maxdwell? */
} else {
struct ieee80211_channel *c;
struct ieee80211_scan_request *hw_req;
struct linuxkpi_ieee80211_channel *lc, **cpp;
struct cfg80211_ssid *ssids;
struct cfg80211_scan_6ghz_params *s6gp;
size_t chan_len, nchan, ssids_len, s6ghzlen;
int band, i, ssid_count, common_ie_len;
uint32_t band_mask;
uint8_t *ie, *ieend;
if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) {
IMPROVE("individual band scans not yet supported");
/* In theory net80211 would have to drive this. */
return;
}
ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids);
ssids_len = ssid_count * sizeof(*ssids);
s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */
band_mask = 0;
nchan = 0;
for (i = ss->ss_next; i < ss->ss_last; i++) {
nchan++;
band = lkpi_net80211_chan_to_nl80211_band(
ss->ss_chans[ss->ss_next + i]);
band_mask |= (1 << band);
}
chan_len = nchan * (sizeof(lc) + sizeof(*lc));
common_ie_len = 0;
if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 &&
vap->iv_wpa_ie != NULL)
common_ie_len += vap->iv_wpa_ie[1];
if (vap->iv_appie_probereq != NULL)
common_ie_len += vap->iv_appie_probereq->ie_len;
/* We would love to check this at an earlier stage... */
if (common_ie_len > hw->wiphy->max_scan_ie_len) {
ic_printf(ic, "WARNING: %s: common_ie_len %d > "
"wiphy->max_scan_ie_len %d\n", __func__,
common_ie_len, hw->wiphy->max_scan_ie_len);
}
KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p "
"!= NULL\n", __func__, ic, lhw, lhw->hw_req));
lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len +
s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len +
common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO);
hw_req->req.flags = 0; /* XXX ??? */
/* hw_req->req.wdev */
hw_req->req.wiphy = hw->wiphy;
hw_req->req.no_cck = false; /* XXX */
#if 0
/* This seems to pessimise default scanning behaviour. */
hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell);
hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell);
#endif
#ifdef __notyet__
hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR;
memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN);
memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN);
#endif
hw_req->req.n_channels = nchan;
cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1);
lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan);
for (i = 0; i < nchan; i++) {
*(cpp + i) =
(struct linuxkpi_ieee80211_channel *)(lc + i);
}
for (i = 0; i < nchan; i++) {
c = ss->ss_chans[ss->ss_next + i];
lc->hw_value = c->ic_ieee;
lc->center_freq = c->ic_freq;
/* lc->flags */
lc->band = lkpi_net80211_chan_to_nl80211_band(c);
lc->max_power = c->ic_maxpower;
/* lc-> ... */
lc++;
}
hw_req->req.n_ssids = ssid_count;
if (hw_req->req.n_ssids > 0) {
ssids = (struct cfg80211_ssid *)lc;
hw_req->req.ssids = ssids;
for (i = 0; i < ssid_count; i++) {
ssids->ssid_len = ss->ss_ssid[i].len;
memcpy(ssids->ssid, ss->ss_ssid[i].ssid,
ss->ss_ssid[i].len);
ssids++;
}
s6gp = (struct cfg80211_scan_6ghz_params *)ssids;
} else {
s6gp = (struct cfg80211_scan_6ghz_params *)lc;
}
/* 6GHz one day. */
hw_req->req.n_6ghz_params = 0;
hw_req->req.scan_6ghz_params = NULL;
hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */
/* s6gp->... */
ie = ieend = (uint8_t *)s6gp;
/* Copy per-band IEs, copy common IEs */
ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw);
hw_req->req.ie = ie;
hw_req->req.ie_len = ieend - ie;
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
error = lkpi_80211_mo_hw_scan(hw, vif, hw_req);
if (error != 0) {
ieee80211_cancel_scan(vap);
free(hw_req, M_LKPI80211);
lhw->hw_req = NULL;
/*
* XXX-SIGH magic number.
* rtw88 has a magic "return 1" if offloading scan is
* not possible. Fall back to sw scan in that case.
*/
if (error == 1) {
LKPI_80211_LHW_SCAN_LOCK(lhw);
lhw->scan_flags &= ~LKPI_LHW_SCAN_HW;
LKPI_80211_LHW_SCAN_UNLOCK(lhw);
ieee80211_start_scan(vap,
IEEE80211_SCAN_ACTIVE |
IEEE80211_SCAN_NOPICK |
IEEE80211_SCAN_ONCE,
IEEE80211_SCAN_FOREVER,
ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20),
ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200),
vap->iv_des_nssid, vap->iv_des_ssid);
goto sw_scan;
}
ic_printf(ic, "ERROR: %s: hw_scan returned %d\n",
__func__, error);
}
}
}
static void
lkpi_ic_scan_end(struct ieee80211com *ic)
{
struct lkpi_hw *lhw;
bool is_hw_scan;
lhw = ic->ic_softc;
LKPI_80211_LHW_SCAN_LOCK(lhw);
if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) {
LKPI_80211_LHW_SCAN_UNLOCK(lhw);
return;
}
is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0;
LKPI_80211_LHW_SCAN_UNLOCK(lhw);
if (!is_hw_scan) {
struct ieee80211_scan_state *ss;
struct ieee80211vap *vap;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
ss = ic->ic_scan;
vap = ss->ss_vap;
hw = LHW_TO_HW(lhw);
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
lkpi_80211_mo_sw_scan_complete(hw, vif);
/* Send PS to stop buffering if n80211 does not for us? */
if (vap->iv_state == IEEE80211_S_SCAN)
lkpi_hw_conf_idle(hw, true);
}
}
static void
lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss,
unsigned long maxdwell)
{
struct lkpi_hw *lhw;
bool is_hw_scan;
lhw = ss->ss_ic->ic_softc;
LKPI_80211_LHW_SCAN_LOCK(lhw);
is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0;
LKPI_80211_LHW_SCAN_UNLOCK(lhw);
if (!is_hw_scan)
lhw->ic_scan_curchan(ss, maxdwell);
}
static void
lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss)
{
struct lkpi_hw *lhw;
bool is_hw_scan;
lhw = ss->ss_ic->ic_softc;
LKPI_80211_LHW_SCAN_LOCK(lhw);
is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0;
LKPI_80211_LHW_SCAN_UNLOCK(lhw);
if (!is_hw_scan)
lhw->ic_scan_mindwell(ss);
}
static void
lkpi_ic_set_channel(struct ieee80211com *ic)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct ieee80211_channel *c;
struct linuxkpi_ieee80211_channel *chan;
int error;
bool hw_scan_running;
lhw = ic->ic_softc;
/* If we do not support (*config)() save us the work. */
if (lhw->ops->config == NULL)
return;
/* If we have a hw_scan running do not switch channels. */
LKPI_80211_LHW_SCAN_LOCK(lhw);
hw_scan_running =
(lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) ==
(LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW);
LKPI_80211_LHW_SCAN_UNLOCK(lhw);
if (hw_scan_running)
return;
c = ic->ic_curchan;
if (c == NULL || c == IEEE80211_CHAN_ANYC) {
ic_printf(ic, "%s: c %p ops->config %p\n", __func__,
c, lhw->ops->config);
return;
}
chan = lkpi_find_lkpi80211_chan(lhw, c);
if (chan == NULL) {
ic_printf(ic, "%s: c %p chan %p\n", __func__,
c, chan);
return;
}
/* XXX max power for scanning? */
IMPROVE();
hw = LHW_TO_HW(lhw);
cfg80211_chandef_create(&hw->conf.chandef, chan,
NL80211_CHAN_NO_HT);
error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL);
if (error != 0 && error != EOPNOTSUPP) {
ic_printf(ic, "ERROR: %s: config %#0x returned %d\n",
__func__, IEEE80211_CONF_CHANGE_CHANNEL, error);
/* XXX should we unroll to the previous chandef? */
IMPROVE();
} else {
/* Update radiotap channels as well. */
lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq);
lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags);
lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq);
lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags);
}
/* Currently PS is hard coded off! Not sure it belongs here. */
IMPROVE();
if (ieee80211_hw_check(hw, SUPPORTS_PS) &&
(hw->conf.flags & IEEE80211_CONF_PS) != 0) {
hw->conf.flags &= ~IEEE80211_CONF_PS;
error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS);
if (error != 0 && error != EOPNOTSUPP)
ic_printf(ic, "ERROR: %s: config %#0x returned "
"%d\n", __func__, IEEE80211_CONF_CHANGE_PS,
error);
}
}
static struct ieee80211_node *
lkpi_ic_node_alloc(struct ieee80211vap *vap,
const uint8_t mac[IEEE80211_ADDR_LEN])
{
struct ieee80211com *ic;
struct lkpi_hw *lhw;
struct ieee80211_node *ni;
struct ieee80211_hw *hw;
struct lkpi_sta *lsta;
ic = vap->iv_ic;
lhw = ic->ic_softc;
/* We keep allocations de-coupled so we can deal with the two worlds. */
if (lhw->ic_node_alloc == NULL)
return (NULL);
ni = lhw->ic_node_alloc(vap, mac);
if (ni == NULL)
return (NULL);
hw = LHW_TO_HW(lhw);
lsta = lkpi_lsta_alloc(vap, mac, hw, ni);
if (lsta == NULL) {
if (lhw->ic_node_free != NULL)
lhw->ic_node_free(ni);
return (NULL);
}
return (ni);
}
static int
lkpi_ic_node_init(struct ieee80211_node *ni)
{
struct ieee80211com *ic;
struct lkpi_hw *lhw;
struct lkpi_sta *lsta;
int error;
ic = ni->ni_ic;
lhw = ic->ic_softc;
if (lhw->ic_node_init != NULL) {
error = lhw->ic_node_init(ni);
if (error != 0)
return (error);
}
lsta = ni->ni_drv_data;
/* Now take the reference before linking it to the table. */
lsta->ni = ieee80211_ref_node(ni);
/* XXX-BZ Sync other state over. */
IMPROVE();
return (0);
}
static void
lkpi_ic_node_cleanup(struct ieee80211_node *ni)
{
struct ieee80211com *ic;
struct lkpi_hw *lhw;
ic = ni->ni_ic;
lhw = ic->ic_softc;
/* XXX-BZ remove from driver, ... */
IMPROVE();
if (lhw->ic_node_cleanup != NULL)
lhw->ic_node_cleanup(ni);
}
static void
lkpi_ic_node_free(struct ieee80211_node *ni)
{
struct ieee80211com *ic;
struct lkpi_hw *lhw;
struct lkpi_sta *lsta;
ic = ni->ni_ic;
lhw = ic->ic_softc;
lsta = ni->ni_drv_data;
if (lsta == NULL)
goto out;
/* XXX-BZ free resources, ... */
IMPROVE();
/* Flush mbufq (make sure to release ni refs!). */
#ifdef __notyet__
KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n",
__func__, lsta, mbufq_len(&lsta->txq)));
#endif
/* Drain taskq. */
/* Drain sta->txq[] */
mtx_destroy(&lsta->txq_mtx);
/* Remove lsta if added_to_drv. */
/* Remove lsta from vif */
/* Remove ref from lsta node... */
/* Free lsta. */
lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap));
out:
if (lhw->ic_node_free != NULL)
lhw->ic_node_free(ni);
}
static int
lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
const struct ieee80211_bpf_params *params __unused)
{
struct lkpi_sta *lsta;
lsta = ni->ni_drv_data;
/* Queue the packet and enqueue the task to handle it. */
LKPI_80211_LSTA_LOCK(lsta);
mbufq_enqueue(&lsta->txq, m);
LKPI_80211_LSTA_UNLOCK(lsta);
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE_TX)
printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n",
__func__, __LINE__, lsta, ni, ni->ni_macaddr, ":",
mbufq_len(&lsta->txq));
#endif
taskqueue_enqueue(taskqueue_thread, &lsta->txq_task);
return (0);
}
static void
lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m)
{
struct ieee80211_node *ni;
#ifndef LKPI_80211_HW_CRYPTO
struct ieee80211_frame *wh;
#endif
struct ieee80211_key *k;
struct sk_buff *skb;
struct ieee80211com *ic;
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_channel *c;
struct ieee80211_tx_control control;
struct ieee80211_tx_info *info;
struct ieee80211_sta *sta;
struct ieee80211_hdr *hdr;
void *buf;
uint8_t ac, tid;
M_ASSERTPKTHDR(m);
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP)
hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0);
#endif
ni = lsta->ni;
k = NULL;
#ifndef LKPI_80211_HW_CRYPTO
/* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */
wh = mtod(m, struct ieee80211_frame *);
if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
/* Retrieve key for TX && do software encryption. */
k = ieee80211_crypto_encap(ni, m);
if (k == NULL) {
ieee80211_free_node(ni);
m_freem(m);
return;
}
}
#endif
ic = ni->ni_ic;
lhw = ic->ic_softc;
hw = LHW_TO_HW(lhw);
c = ni->ni_chan;
if (ieee80211_radiotap_active_vap(ni->ni_vap)) {
struct lkpi_radiotap_tx_hdr *rtap;
rtap = &lhw->rtap_tx;
rtap->wt_flags = 0;
if (k != NULL)
rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
if (m->m_flags & M_FRAG)
rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG;
IMPROVE();
rtap->wt_rate = 0;
if (c != NULL && c != IEEE80211_CHAN_ANYC) {
rtap->wt_chan_freq = htole16(c->ic_freq);
rtap->wt_chan_flags = htole16(c->ic_flags);
}
ieee80211_radiotap_tx(ni->ni_vap, m);
}
/*
* net80211 should handle hw->extra_tx_headroom.
* Though for as long as we are copying we don't mind.
* XXX-BZ rtw88 asks for too much headroom for ipv6+tcp:
* https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html
*/
skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len);
if (skb == NULL) {
ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__);
ieee80211_free_node(ni);
m_freem(m);
return;
}
skb_reserve(skb, hw->extra_tx_headroom);
/* XXX-BZ we need a SKB version understanding mbuf. */
/* Save the mbuf for ieee80211_tx_complete(). */
skb->m_free_func = lkpi_ieee80211_free_skb_mbuf;
skb->m = m;
#if 0
skb_put_data(skb, m->m_data, m->m_pkthdr.len);
#else
buf = skb_put(skb, m->m_pkthdr.len);
m_copydata(m, 0, m->m_pkthdr.len, buf);
#endif
/* Save the ni. */
m->m_pkthdr.PH_loc.ptr = ni;
lvif = VAP_TO_LVIF(ni->ni_vap);
vif = LVIF_TO_VIF(lvif);
hdr = (void *)skb->data;
tid = linuxkpi_ieee80211_get_tid(hdr, true);
if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */
skb->priority = 0;
ac = IEEE80211_AC_BE;
} else {
skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK;
ac = tid_to_mac80211_ac[tid & 7];
}
skb_set_queue_mapping(skb, ac);
info = IEEE80211_SKB_CB(skb);
info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
/* Slight delay; probably only happens on scanning so fine? */
if (c == NULL || c == IEEE80211_CHAN_ANYC)
c = ic->ic_curchan;
info->band = lkpi_net80211_chan_to_nl80211_band(c);
info->hw_queue = vif->hw_queue[ac];
if (m->m_flags & M_EAPOL)
info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO;
info->control.vif = vif;
/* XXX-BZ info->control.rates */
lsta = lkpi_find_lsta_by_ni(lvif, ni);
if (lsta != NULL) {
sta = LSTA_TO_STA(lsta);
#ifdef LKPI_80211_HW_CRYPTO
info->control.hw_key = lsta->kc;
#endif
} else {
sta = NULL;
}
IMPROVE();
if (sta != NULL) {
struct lkpi_txq *ltxq;
ltxq = NULL;
if (!ieee80211_is_data_present(hdr->frame_control)) {
if (vif->type == NL80211_IFTYPE_STATION &&
lsta->added_to_drv &&
sta->txq[IEEE80211_NUM_TIDS] != NULL)
ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]);
} else if (lsta->added_to_drv &&
sta->txq[skb->priority] != NULL) {
ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]);
}
if (ltxq == NULL)
goto ops_tx;
KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p "
"ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq));
skb_queue_tail(&ltxq->skbq, skb);
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE_TX)
printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p "
"ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } "
"WAKE_TX_Q ac %d prio %u qmap %u\n",
__func__, __LINE__,
curthread->td_tid, (unsigned int)ticks,
lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq,
skb_queue_len(&ltxq->skbq), ltxq->txq.ac,
ltxq->txq.tid, ac, skb->priority, skb->qmap);
#endif
lkpi_80211_mo_wake_tx_queue(hw, &ltxq->txq);
return;
}
ops_tx:
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE_TX)
printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p "
"TX ac %d prio %u qmap %u\n",
__func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":",
skb, ac, skb->priority, skb->qmap);
#endif
memset(&control, 0, sizeof(control));
control.sta = sta;
lkpi_80211_mo_tx(hw, &control, skb);
return;
}
static void
lkpi_80211_txq_task(void *ctx, int pending)
{
struct lkpi_sta *lsta;
struct mbufq mq;
struct mbuf *m;
lsta = ctx;
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE_TX)
printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n",
__func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":",
pending, mbufq_len(&lsta->txq));
#endif
mbufq_init(&mq, IFQ_MAXLEN);
LKPI_80211_LSTA_LOCK(lsta);
mbufq_concat(&mq, &lsta->txq);
LKPI_80211_LSTA_UNLOCK(lsta);
m = mbufq_dequeue(&mq);
while (m != NULL) {
lkpi_80211_txq_tx_one(lsta, m);
m = mbufq_dequeue(&mq);
}
}
static int
lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m)
{
/* XXX TODO */
IMPROVE();
/* Quick and dirty cheating hack. */
struct ieee80211_node *ni;
ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
return (lkpi_ic_raw_xmit(ni, m, NULL));
}
static void
lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan,
int *n, struct ieee80211_channel *c)
{
struct lkpi_hw *lhw;
struct ieee80211_hw *hw;
struct linuxkpi_ieee80211_channel *channels;
uint8_t bands[IEEE80211_MODE_BYTES];
int chan_flags, error, i, nchans;
/* Channels */
lhw = ic->ic_softc;
hw = LHW_TO_HW(lhw);
/* NL80211_BAND_2GHZ */
nchans = 0;
if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL)
nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels;
if (nchans > 0) {
memset(bands, 0, sizeof(bands));
chan_flags = 0;
setbit(bands, IEEE80211_MODE_11B);
/* XXX-BZ unclear how to check for 11g. */
setbit(bands, IEEE80211_MODE_11G);
#ifdef __notyet__
if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) {
setbit(bands, IEEE80211_MODE_11NG);
chan_flags |= NET80211_CBW_FLAG_HT40;
}
#endif
channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels;
for (i = 0; i < nchans && *n < maxchan; i++) {
uint32_t nflags = 0;
int cflags = chan_flags;
if (channels[i].flags & IEEE80211_CHAN_DISABLED) {
ic_printf(ic, "%s: Skipping disabled chan "
"[%u/%u/%#x]\n", __func__,
channels[i].hw_value,
channels[i].center_freq, channels[i].flags);
continue;
}
if (channels[i].flags & IEEE80211_CHAN_NO_IR)
nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE);
if (channels[i].flags & IEEE80211_CHAN_RADAR)
nflags |= IEEE80211_CHAN_DFS;
if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ)
cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80);
if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ)
cflags &= ~NET80211_CBW_FLAG_VHT80;
/* XXX how to map the remaining enum ieee80211_channel_flags? */
if (channels[i].flags & IEEE80211_CHAN_NO_HT40)
cflags &= ~NET80211_CBW_FLAG_HT40;
error = ieee80211_add_channel_cbw(c, maxchan, n,
channels[i].hw_value, channels[i].center_freq,
channels[i].max_power,
nflags, bands, chan_flags);
/* net80211::ENOBUFS: *n >= maxchans */
if (error != 0 && error != ENOBUFS)
ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x "
"returned error %d\n",
__func__, channels[i].hw_value,
channels[i].center_freq, channels[i].flags,
nflags, chan_flags, cflags, error);
if (error != 0)
break;
}
}
/* NL80211_BAND_5GHZ */
nchans = 0;
if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL)
nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels;
if (nchans > 0) {
memset(bands, 0, sizeof(bands));
chan_flags = 0;
setbit(bands, IEEE80211_MODE_11A);
#ifdef __not_yet__
if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) {
setbit(bands, IEEE80211_MODE_11NA);
chan_flags |= NET80211_CBW_FLAG_HT40;
}
if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){
ic->ic_flags_ext |= IEEE80211_FEXT_VHT;
ic->ic_vhtcaps =
hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap;
setbit(bands, IEEE80211_MODE_VHT_5GHZ);
chan_flags |= NET80211_CBW_FLAG_VHT80;
if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ(
ic->ic_vhtcaps))
chan_flags |= NET80211_CBW_FLAG_VHT160;
if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ(
ic->ic_vhtcaps))
chan_flags |= NET80211_CBW_FLAG_VHT80P80;
}
#endif
channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels;
for (i = 0; i < nchans && *n < maxchan; i++) {
uint32_t nflags = 0;
int cflags = chan_flags;
if (channels[i].flags & IEEE80211_CHAN_DISABLED) {
ic_printf(ic, "%s: Skipping disabled chan "
"[%u/%u/%#x]\n", __func__,
channels[i].hw_value,
channels[i].center_freq, channels[i].flags);
continue;
}
if (channels[i].flags & IEEE80211_CHAN_NO_IR)
nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE);
if (channels[i].flags & IEEE80211_CHAN_RADAR)
nflags |= IEEE80211_CHAN_DFS;
if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ)
cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80);
if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ)
cflags &= ~NET80211_CBW_FLAG_VHT80;
/* XXX hwo to map the remaining enum ieee80211_channel_flags? */
if (channels[i].flags & IEEE80211_CHAN_NO_HT40)
cflags &= ~NET80211_CBW_FLAG_HT40;
error = ieee80211_add_channel_cbw(c, maxchan, n,
channels[i].hw_value, channels[i].center_freq,
channels[i].max_power,
nflags, bands, chan_flags);
/* net80211::ENOBUFS: *n >= maxchans */
if (error != 0 && error != ENOBUFS)
ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x "
"returned error %d\n",
__func__, channels[i].hw_value,
channels[i].center_freq, channels[i].flags,
nflags, chan_flags, cflags, error);
if (error != 0)
break;
}
}
}
static void *
lkpi_ieee80211_ifalloc(void)
{
struct ieee80211com *ic;
ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO);
if (ic == NULL)
return (NULL);
/* Setting these happens later when we have device information. */
ic->ic_softc = NULL;
ic->ic_name = "linuxkpi";
return (ic);
}
struct ieee80211_hw *
linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops)
{
struct ieee80211_hw *hw;
struct lkpi_hw *lhw;
struct wiphy *wiphy;
/* Get us and the driver data also allocated. */
wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len);
if (wiphy == NULL)
return (NULL);
lhw = wiphy_priv(wiphy);
lhw->ops = ops;
LKPI_80211_LHW_LOCK_INIT(lhw);
LKPI_80211_LHW_SCAN_LOCK_INIT(lhw);
sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK);
TAILQ_INIT(&lhw->lvif_head);
/*
* XXX-BZ TODO make sure there is a "_null" function to all ops
* not initialized.
*/
hw = LHW_TO_HW(lhw);
hw->wiphy = wiphy;
hw->conf.flags |= IEEE80211_CONF_IDLE;
hw->priv = (void *)(lhw + 1);
/* BSD Specific. */
lhw->ic = lkpi_ieee80211_ifalloc();
if (lhw->ic == NULL) {
ieee80211_free_hw(hw);
return (NULL);
}
IMPROVE();
return (hw);
}
void
linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw)
{
struct lkpi_hw *lhw;
lhw = HW_TO_LHW(hw);
free(lhw->ic, M_LKPI80211);
lhw->ic = NULL;
/* Cleanup more of lhw here or in wiphy_free()? */
sx_destroy(&lhw->lvif_sx);
LKPI_80211_LHW_LOCK_DESTROY(lhw);
LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw);
IMPROVE();
}
void
linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name)
{
struct lkpi_hw *lhw;
struct ieee80211com *ic;
lhw = HW_TO_LHW(hw);
ic = lhw->ic;
/* Now set a proper name before ieee80211_ifattach(). */
ic->ic_softc = lhw;
ic->ic_name = name;
/* XXX-BZ do we also need to set wiphy name? */
}
struct ieee80211_hw *
linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy)
{
struct lkpi_hw *lhw;
lhw = wiphy_priv(wiphy);
return (LHW_TO_HW(lhw));
}
static void
lkpi_radiotap_attach(struct lkpi_hw *lhw)
{
struct ieee80211com *ic;
ic = lhw->ic;
ieee80211_radiotap_attach(ic,
&lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx),
LKPI_RTAP_TX_FLAGS_PRESENT,
&lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx),
LKPI_RTAP_RX_FLAGS_PRESENT);
}
int
linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw)
{
struct ieee80211com *ic;
struct lkpi_hw *lhw;
int band, i;
lhw = HW_TO_LHW(hw);
ic = lhw->ic;
/* We do it this late as wiphy->dev should be set for the name. */
lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0);
if (lhw->workq == NULL)
return (-EAGAIN);
/* XXX-BZ figure this out how they count his... */
if (!is_zero_ether_addr(hw->wiphy->perm_addr)) {
IEEE80211_ADDR_COPY(ic->ic_macaddr,
hw->wiphy->perm_addr);
} else if (hw->wiphy->n_addresses > 0) {
/* We take the first one. */
IEEE80211_ADDR_COPY(ic->ic_macaddr,
hw->wiphy->addresses[0].addr);
} else {
ic_printf(ic, "%s: warning, no hardware address!\n", __func__);
}
#ifdef __not_yet__
/* See comment in lkpi_80211_txq_tx_one(). */
ic->ic_headroom = hw->extra_tx_headroom;
#endif
ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
ic->ic_opmode = IEEE80211_M_STA;
/* Set device capabilities. */
/* XXX-BZ we need to get these from linux80211/drivers and convert. */
ic->ic_caps =
IEEE80211_C_STA |
IEEE80211_C_MONITOR |
IEEE80211_C_WPA | /* WPA/RSN */
#ifdef LKPI_80211_WME
IEEE80211_C_WME |
#endif
#if 0
IEEE80211_C_PMGT |
#endif
IEEE80211_C_SHSLOT | /* short slot time supported */
IEEE80211_C_SHPREAMBLE /* short preamble supported */
;
#if 0
/* Scanning is a different kind of beast to re-work. */
ic->ic_caps |= IEEE80211_C_BGSCAN;
#endif
if (lhw->ops->hw_scan) {
/*
* Advertise full-offload scanning.
*
* Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise
* we essentially disable hw_scan for all drivers not setting
* the flag.
*/
ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD;
lhw->scan_flags |= LKPI_LHW_SCAN_HW;
}
#ifdef __notyet__
ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */
| IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */
| IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */
| IEEE80211_HTCAP_MAXAMSDU_3839
/* max A-MSDU length */
| IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */
ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20;
ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40;
ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC;
#endif
/*
* The wiphy variables report bitmasks of avail antennas.
* (*get_antenna) get the current bitmask sets which can be
* altered by (*set_antenna) for some drivers.
* XXX-BZ will the count alone do us much good long-term in net80211?
*/
if (hw->wiphy->available_antennas_rx ||
hw->wiphy->available_antennas_tx) {
uint32_t rxs, txs;
if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) {
ic->ic_rxstream = bitcount32(rxs);
ic->ic_txstream = bitcount32(txs);
}
}
ic->ic_cryptocaps = 0;
#ifdef LKPI_80211_HW_CRYPTO
if (hw->wiphy->n_cipher_suites > 0) {
for (i = 0; i < hw->wiphy->n_cipher_suites; i++)
ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers(
hw->wiphy->cipher_suites[i]);
}
#endif
lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
ic->ic_channels);
ieee80211_ifattach(ic);
ic->ic_update_mcast = lkpi_ic_update_mcast;
ic->ic_update_promisc = lkpi_ic_update_promisc;
ic->ic_update_chw = lkpi_ic_update_chw;
ic->ic_parent = lkpi_ic_parent;
ic->ic_scan_start = lkpi_ic_scan_start;
ic->ic_scan_end = lkpi_ic_scan_end;
ic->ic_set_channel = lkpi_ic_set_channel;
ic->ic_transmit = lkpi_ic_transmit;
ic->ic_raw_xmit = lkpi_ic_raw_xmit;
ic->ic_vap_create = lkpi_ic_vap_create;
ic->ic_vap_delete = lkpi_ic_vap_delete;
ic->ic_getradiocaps = lkpi_ic_getradiocaps;
ic->ic_wme.wme_update = lkpi_ic_wme_update;
lhw->ic_scan_curchan = ic->ic_scan_curchan;
ic->ic_scan_curchan = lkpi_ic_scan_curchan;
lhw->ic_scan_mindwell = ic->ic_scan_mindwell;
ic->ic_scan_mindwell = lkpi_ic_scan_mindwell;
lhw->ic_node_alloc = ic->ic_node_alloc;
ic->ic_node_alloc = lkpi_ic_node_alloc;
lhw->ic_node_init = ic->ic_node_init;
ic->ic_node_init = lkpi_ic_node_init;
lhw->ic_node_cleanup = ic->ic_node_cleanup;
ic->ic_node_cleanup = lkpi_ic_node_cleanup;
lhw->ic_node_free = ic->ic_node_free;
ic->ic_node_free = lkpi_ic_node_free;
lkpi_radiotap_attach(lhw);
/*
* Assign the first possible channel for now; seems Realtek drivers
* expect one.
* Also remember the amount of bands we support and the most rates
* in any band so we can scale [(ext) sup rates] IE(s) accordingly.
*/
lhw->supbands = lhw->max_rates = 0;
for (band = 0; band < NUM_NL80211_BANDS &&
hw->conf.chandef.chan == NULL; band++) {
struct ieee80211_supported_band *supband;
struct linuxkpi_ieee80211_channel *channels;
supband = hw->wiphy->bands[band];
if (supband == NULL || supband->n_channels == 0)
continue;
lhw->supbands++;
lhw->max_rates = max(lhw->max_rates, supband->n_bitrates);
channels = supband->channels;
for (i = 0; i < supband->n_channels; i++) {
if (channels[i].flags & IEEE80211_CHAN_DISABLED)
continue;
cfg80211_chandef_create(&hw->conf.chandef, &channels[i],
NL80211_CHAN_NO_HT);
break;
}
}
IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?");
/* Make sure we do not support more than net80211 is willing to take. */
if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) {
ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__,
lhw->max_rates, IEEE80211_RATE_MAXSIZE);
lhw->max_rates = IEEE80211_RATE_MAXSIZE;
}
/*
* The maximum supported bitrates on any band + size for
* DSSS Parameter Set give our per-band IE size.
* XXX-BZ FIXME add HT VHT ... later
* SSID is the responsibility of the driver and goes on the side.
* The user specified bits coming from the vap go into the
* "common ies" fields.
*/
lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE;
if (lhw->max_rates > IEEE80211_RATE_SIZE)
lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE);
/*
* net80211 does not seem to support the DSSS Parameter Set but some of
* the drivers insert it so calculate the extra fixed space in.
*/
lhw->scan_ie_len += 2 + 1;
/* Reduce the max_scan_ie_len "left" by the amount we consume already. */
if (hw->wiphy->max_scan_ie_len > 0)
hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len;
if (bootverbose)
ieee80211_announce(ic);
return (0);
}
void
linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw)
{
struct lkpi_hw *lhw;
struct ieee80211com *ic;
lhw = HW_TO_LHW(hw);
ic = lhw->ic;
ieee80211_ifdetach(ic);
}
void
linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw,
enum ieee80211_iface_iter flags,
void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *),
void *arg)
{
struct lkpi_hw *lhw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
bool active, atomic, nin_drv;
lhw = HW_TO_LHW(hw);
if (flags & ~(IEEE80211_IFACE_ITER_NORMAL|
IEEE80211_IFACE_ITER_RESUME_ALL|
IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER|
IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) {
ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n",
__func__, flags);
}
active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0;
atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0;
nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0;
if (atomic)
LKPI_80211_LHW_LVIF_LOCK(lhw);
TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) {
struct ieee80211vap *vap;
vif = LVIF_TO_VIF(lvif);
/*
* If we want "active" interfaces, we need to distinguish on
* whether the driver knows about them or not to be able to
* handle the "resume" case correctly. Skip the ones the
* driver does not know about.
*/
if (active && !lvif->added_to_drv &&
(flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0)
continue;
/*
* If we shall skip interfaces not added to the driver do so
* if we haven't yet.
*/
if (nin_drv && !lvif->added_to_drv)
continue;
/*
* Run the iterator function if we are either not asking
* asking for active only or if the VAP is "running".
*/
/* XXX-BZ probably should have state in the lvif as well. */
vap = LVIF_TO_VAP(lvif);
if (!active || (vap->iv_state != IEEE80211_S_INIT))
iterfunc(arg, vif->addr, vif);
}
if (atomic)
LKPI_80211_LHW_LVIF_UNLOCK(lhw);
}
void
linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *,
struct ieee80211_sta *, struct ieee80211_key_conf *, void *),
void *arg)
{
UNIMPLEMENTED;
}
void
linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw,
void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *,
void *),
void *arg)
{
UNIMPLEMENTED;
}
void
linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw,
void (*iterfunc)(void *, struct ieee80211_sta *), void *arg)
{
struct lkpi_hw *lhw;
struct lkpi_vif *lvif;
struct lkpi_sta *lsta;
struct ieee80211_sta *sta;
KASSERT(hw != NULL && iterfunc != NULL,
("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg));
lhw = HW_TO_LHW(hw);
LKPI_80211_LHW_LVIF_LOCK(lhw);
TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) {
LKPI_80211_LVIF_LOCK(lvif);
TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) {
if (!lsta->added_to_drv)
continue;
sta = LSTA_TO_STA(lsta);
iterfunc(arg, sta);
}
LKPI_80211_LVIF_UNLOCK(lvif);
}
LKPI_80211_LHW_LVIF_UNLOCK(lhw);
}
int
linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy,
struct linuxkpi_ieee80211_regdomain *regd)
{
struct lkpi_hw *lhw;
struct ieee80211com *ic;
struct ieee80211_regdomain *rd;
lhw = wiphy_priv(wiphy);
ic = lhw->ic;
rd = &ic->ic_regdomain;
if (rd->isocc[0] == '\0') {
rd->isocc[0] = regd->alpha2[0];
rd->isocc[1] = regd->alpha2[1];
}
TODO();
/* XXX-BZ finish the rest. */
return (0);
}
void
linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw,
struct cfg80211_scan_info *info)
{
struct lkpi_hw *lhw;
struct ieee80211com *ic;
struct ieee80211_scan_state *ss;
lhw = wiphy_priv(hw->wiphy);
ic = lhw->ic;
ss = ic->ic_scan;
ieee80211_scan_done(ss->ss_vap);
LKPI_80211_LHW_SCAN_LOCK(lhw);
free(lhw->hw_req, M_LKPI80211);
lhw->hw_req = NULL;
lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING;
wakeup(lhw);
LKPI_80211_LHW_SCAN_UNLOCK(lhw);
return;
}
/* For %list see comment towards the end of the function. */
void
linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
struct ieee80211_sta *sta, struct napi_struct *napi __unused,
struct list_head *list __unused)
{
struct epoch_tracker et;
struct lkpi_hw *lhw;
struct ieee80211com *ic;
struct mbuf *m;
struct skb_shared_info *shinfo;
struct ieee80211_rx_status *rx_status;
struct ieee80211_rx_stats rx_stats;
struct ieee80211_node *ni;
struct ieee80211vap *vap;
struct ieee80211_hdr *hdr;
struct lkpi_sta *lsta;
int i, offset, ok;
int8_t rssi;
bool is_beacon;
if (skb->len < 2) {
/* Need 80211 stats here. */
IMPROVE();
goto err;
}
/*
* For now do the data copy; we can later improve things. Might even
* have an mbuf backing the skb data then?
*/
m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR);
if (m == NULL)
goto err;
m_copyback(m, 0, skb->tail - skb->data, skb->data);
shinfo = skb_shinfo(skb);
offset = m->m_len;
for (i = 0; i < shinfo->nr_frags; i++) {
m_copyback(m, offset, shinfo->frags[i].size,
(uint8_t *)linux_page_address(shinfo->frags[i].page) +
shinfo->frags[i].offset);
offset += shinfo->frags[i].size;
}
rx_status = IEEE80211_SKB_RXCB(skb);
hdr = (void *)skb->data;
is_beacon = ieee80211_is_beacon(hdr->frame_control);
#ifdef LINUXKPI_DEBUG_80211
if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0)
goto no_trace_beacons;
if (linuxkpi_debug_80211 & D80211_TRACE_RX)
printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) "
"h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n",
__func__, skb, skb->_alloc_len, skb->len, skb->data_len,
skb->truesize, skb->head, skb->data, skb->tail, skb->end,
shinfo, shinfo->nr_frags,
m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : "");
if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP)
hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0);
/* Implement a dump_rxcb() !!! */
if (linuxkpi_debug_80211 & D80211_TRACE_RX)
printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, "
"%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n",
__func__,
(uintmax_t)rx_status->boottime_ns,
(uintmax_t)rx_status->mactime,
rx_status->device_timestamp,
rx_status->flag,
rx_status->freq,
rx_status->bw,
rx_status->encoding,
rx_status->ampdu_reference,
rx_status->band,
rx_status->chains,
rx_status->chain_signal[0],
rx_status->chain_signal[1],
rx_status->chain_signal[2],
rx_status->chain_signal[3],
rx_status->signal,
rx_status->enc_flags,
rx_status->he_dcm,
rx_status->he_gi,
rx_status->he_ru,
rx_status->zero_length_psdu_type,
rx_status->nss,
rx_status->rate_idx);
no_trace_beacons:
#endif
memset(&rx_stats, 0, sizeof(rx_stats));
rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI;
/* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */
rx_stats.c_nf = -96;
if (ieee80211_hw_check(hw, SIGNAL_DBM) &&
!(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL))
rssi = rx_status->signal;
else
rssi = rx_stats.c_nf;
/*
* net80211 signal strength data are in .5 dBm units relative to
* the current noise floor (see comment in ieee80211_node.h).
*/
rssi -= rx_stats.c_nf;
rx_stats.c_rssi = rssi * 2;
rx_stats.r_flags |= IEEE80211_R_BAND;
rx_stats.c_band =
lkpi_nl80211_band_to_net80211_band(rx_status->band);
rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE;
rx_stats.c_freq = rx_status->freq;
rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band);
/* XXX (*sta_statistics)() to get to some of that? */
/* XXX-BZ dump the FreeBSD version of rx_stats as well! */
lhw = HW_TO_LHW(hw);
ic = lhw->ic;
ok = ieee80211_add_rx_params(m, &rx_stats);
if (ok == 0) {
m_freem(m);
counter_u64_add(ic->ic_ierrors, 1);
goto err;
}
if (sta != NULL) {
lsta = STA_TO_LSTA(sta);
ni = ieee80211_ref_node(lsta->ni);
} else {
struct ieee80211_frame_min *wh;
wh = mtod(m, struct ieee80211_frame_min *);
ni = ieee80211_find_rxnode(ic, wh);
if (ni != NULL)
lsta = ni->ni_drv_data;
}
if (ni != NULL)
vap = ni->ni_vap;
else
/*
* XXX-BZ can we improve this by looking at the frame hdr
* or other meta-data passed up?
*/
vap = TAILQ_FIRST(&ic->ic_vaps);
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE_RX)
printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n",
__func__, sta, lsta, (lsta != NULL) ? lsta->state : -1,
ni, vap, is_beacon ? " beacon" : "");
#endif
if (ni != NULL && vap != NULL && is_beacon &&
rx_status->device_timestamp > 0 &&
m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) {
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
struct ieee80211_frame *wh;
wh = mtod(m, struct ieee80211_frame *);
if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid))
goto skip_device_ts;
lvif = VAP_TO_LVIF(vap);
vif = LVIF_TO_VIF(lvif);
IMPROVE("TIMING_BEACON_ONLY?");
/* mac80211 specific (not net80211) so keep it here. */
vif->bss_conf.sync_device_ts = rx_status->device_timestamp;
/*
* net80211 should take care of the other information (sync_tsf,
* sync_dtim_count) as otherwise we need to parse the beacon.
*/
}
skip_device_ts:
if (vap != NULL && vap->iv_state > IEEE80211_S_INIT &&
ieee80211_radiotap_active_vap(vap)) {
struct lkpi_radiotap_rx_hdr *rtap;
rtap = &lhw->rtap_rx;
rtap->wr_tsft = rx_status->device_timestamp;
rtap->wr_flags = 0;
if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE)
rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI)
rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI;
#if 0 /* .. or it does not given we strip it below. */
if (ieee80211_hw_check(hw, RX_INCLUDES_FCS))
rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS;
#endif
if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC)
rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;
rtap->wr_rate = 0;
IMPROVE();
/* XXX TODO status->encoding / rate_index / bw */
rtap->wr_chan_freq = htole16(rx_stats.c_freq);
if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee)
rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags);
rtap->wr_dbm_antsignal = rssi;
rtap->wr_dbm_antnoise = rx_stats.c_nf;
}
if (ieee80211_hw_check(hw, RX_INCLUDES_FCS))
m_adj(m, -IEEE80211_CRC_LEN);
#if 0
if (list != NULL) {
/*
* Normally this would be queued up and delivered by
* netif_receive_skb_list(), napi_gro_receive(), or the like.
* See mt76::mac80211.c as only current possible consumer.
*/
IMPROVE("we simply pass the packet to net80211 to deal with.");
}
#endif
NET_EPOCH_ENTER(et);
if (ni != NULL) {
ok = ieee80211_input_mimo(ni, m);
ieee80211_free_node(ni);
if (ok < 0)
m_freem(m);
} else {
ok = ieee80211_input_mimo_all(ic, m);
/* mbuf got consumed. */
}
NET_EPOCH_EXIT(et);
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE_RX)
printf("TRACE %s: handled frame type %#0x\n", __func__, ok);
#endif
IMPROVE();
err:
/* The skb is ours so we can free it :-) */
kfree_skb(skb);
}
uint8_t
linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok)
{
const struct ieee80211_frame *wh;
uint8_t tid;
/* Linux seems to assume this is a QOS-Data-Frame */
KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control),
("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr,
hdr->frame_control));
wh = (const struct ieee80211_frame *)hdr;
tid = ieee80211_gettid(wh);
KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u "
"not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID));
return (tid);
}
struct wiphy *
linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len)
{
struct lkpi_wiphy *lwiphy;
lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL);
if (lwiphy == NULL)
return (NULL);
lwiphy->ops = ops;
/* XXX TODO */
return (LWIPHY_TO_WIPHY(lwiphy));
}
void
linuxkpi_wiphy_free(struct wiphy *wiphy)
{
struct lkpi_wiphy *lwiphy;
if (wiphy == NULL)
return;
lwiphy = WIPHY_TO_LWIPHY(wiphy);
kfree(lwiphy);
}
uint32_t
linuxkpi_ieee80211_channel_to_frequency(uint32_t channel,
enum nl80211_band band)
{
switch (band) {
case NL80211_BAND_2GHZ:
return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ));
break;
case NL80211_BAND_5GHZ:
return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ));
break;
default:
/* XXX abort, retry, error, panic? */
break;
}
return (0);
}
uint32_t
linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused)
{
return (ieee80211_mhz2ieee(freq, 0));
}
static struct lkpi_sta *
lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni)
{
struct lkpi_sta *lsta, *temp;
LKPI_80211_LVIF_LOCK(lvif);
TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) {
if (lsta->ni == ni) {
LKPI_80211_LVIF_UNLOCK(lvif);
return (lsta);
}
}
LKPI_80211_LVIF_UNLOCK(lvif);
return (NULL);
}
struct ieee80211_sta *
linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer)
{
struct lkpi_vif *lvif;
struct lkpi_sta *lsta, *temp;
struct ieee80211_sta *sta;
lvif = VIF_TO_LVIF(vif);
LKPI_80211_LVIF_LOCK(lvif);
TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) {
sta = LSTA_TO_STA(lsta);
if (IEEE80211_ADDR_EQ(sta->addr, peer)) {
LKPI_80211_LVIF_UNLOCK(lvif);
return (sta);
}
}
LKPI_80211_LVIF_UNLOCK(lvif);
return (NULL);
}
struct ieee80211_sta *
linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw,
const uint8_t *addr, const uint8_t *ourvifaddr)
{
struct lkpi_hw *lhw;
struct lkpi_vif *lvif;
struct lkpi_sta *lsta;
struct ieee80211_vif *vif;
struct ieee80211_sta *sta;
lhw = wiphy_priv(hw->wiphy);
sta = NULL;
LKPI_80211_LHW_LVIF_LOCK(lhw);
TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) {
/* XXX-BZ check our address from the vif. */
vif = LVIF_TO_VIF(lvif);
if (ourvifaddr != NULL &&
!IEEE80211_ADDR_EQ(vif->addr, ourvifaddr))
continue;
sta = linuxkpi_ieee80211_find_sta(vif, addr);
if (sta != NULL)
break;
}
LKPI_80211_LHW_LVIF_UNLOCK(lhw);
if (sta != NULL) {
lsta = STA_TO_LSTA(sta);
if (!lsta->added_to_drv)
return (NULL);
}
return (sta);
}
struct sk_buff *
linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw,
struct ieee80211_txq *txq)
{
struct lkpi_txq *ltxq;
struct lkpi_vif *lvif;
struct sk_buff *skb;
skb = NULL;
ltxq = TXQ_TO_LTXQ(txq);
ltxq->seen_dequeue = true;
if (ltxq->stopped)
goto stopped;
lvif = VIF_TO_LVIF(ltxq->txq.vif);
if (lvif->hw_queue_stopped[ltxq->txq.ac]) {
ltxq->stopped = true;
goto stopped;
}
skb = skb_dequeue(&ltxq->skbq);
stopped:
return (skb);
}
void
linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq,
unsigned long *frame_cnt, unsigned long *byte_cnt)
{
struct lkpi_txq *ltxq;
struct sk_buff *skb;
unsigned long fc, bc;
ltxq = TXQ_TO_LTXQ(txq);
fc = bc = 0;
skb_queue_walk(&ltxq->skbq, skb) {
fc++;
bc += skb->len;
}
if (frame_cnt)
*frame_cnt = fc;
if (byte_cnt)
*byte_cnt = bc;
/* Validate that this is doing the correct thing. */
/* Should we keep track on en/dequeue? */
IMPROVE();
}
/*
* We are called from ieee80211_free_txskb() or ieee80211_tx_status().
* The latter tries to derive the success status from the info flags
* passed back from the driver. rawx_mit() saves the ni on the m and the
* m on the skb for us to be able to give feedback to net80211.
*/
static void
_lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb,
int status)
{
struct ieee80211_node *ni;
struct mbuf *m;
m = skb->m;
skb->m = NULL;
if (m != NULL) {
ni = m->m_pkthdr.PH_loc.ptr;
/* Status: 0 is ok, != 0 is error. */
ieee80211_tx_complete(ni, m, status);
/* ni & mbuf were consumed. */
}
}
void
linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb,
int status)
{
_lkpi_ieee80211_free_txskb(hw, skb, status);
kfree_skb(skb);
}
void
linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw,
struct ieee80211_tx_status *txstat)
{
struct sk_buff *skb;
struct ieee80211_tx_info *info;
struct ieee80211_ratectl_tx_status txs;
struct ieee80211_node *ni;
int status;
skb = txstat->skb;
if (skb->m != NULL) {
struct mbuf *m;
m = skb->m;
ni = m->m_pkthdr.PH_loc.ptr;
memset(&txs, 0, sizeof(txs));
} else {
ni = NULL;
}
info = txstat->info;
if (info->flags & IEEE80211_TX_STAT_ACK) {
status = 0; /* No error. */
txs.status = IEEE80211_RATECTL_TX_SUCCESS;
} else {
status = 1;
txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED;
}
if (ni != NULL) {
int ridx __unused;
#ifdef LINUXKPI_DEBUG_80211
int old_rate;
old_rate = ni->ni_vap->iv_bss->ni_txrate;
#endif
txs.pktlen = skb->len;
txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN;
if (info->status.rates[0].count > 1) {
txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */
txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY;
}
#if 0 /* Unused in net80211 currently. */
/* XXX-BZ convert check .flags for MCS/VHT/.. */
txs.final_rate = info->status.rates[0].idx;
txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE;
#endif
if (info->status.is_valid_ack_signal) {
txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */
txs.flags |= IEEE80211_RATECTL_STATUS_RSSI;
}
IMPROVE("only update of rate matches but that requires us to get a proper rate");
ieee80211_ratectl_tx_complete(ni, &txs);
ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0);
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE_TX) {
printf("TX-RATE: %s: old %d new %d ridx %d, "
"long_retries %d\n", __func__,
old_rate, ni->ni_vap->iv_bss->ni_txrate,
ridx, txs.long_retries);
}
#endif
}
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE_TX)
printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x "
"band %u hw_queue %u tx_time_est %d : "
"rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] "
"ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u "
"tx_time %u is_valid_ack_signal %u "
"status_driver_data [ %p %p ]\n",
__func__, hw, skb, status, info->flags,
info->band, info->hw_queue, info->tx_time_est,
info->status.rates[0].idx, info->status.rates[0].count,
info->status.rates[0].flags,
info->status.rates[1].idx, info->status.rates[1].count,
info->status.rates[1].flags,
info->status.rates[2].idx, info->status.rates[2].count,
info->status.rates[2].flags,
info->status.rates[3].idx, info->status.rates[3].count,
info->status.rates[3].flags,
info->status.ack_signal, info->status.ampdu_ack_len,
info->status.ampdu_len, info->status.antenna,
info->status.tx_time, info->status.is_valid_ack_signal,
info->status.status_driver_data[0],
info->status.status_driver_data[1]);
#endif
if (txstat->free_list) {
_lkpi_ieee80211_free_txskb(hw, skb, status);
list_add_tail(&skb->list, txstat->free_list);
} else {
linuxkpi_ieee80211_free_txskb(hw, skb, status);
}
}
void
linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct ieee80211_tx_status status;
memset(&status, 0, sizeof(status));
status.info = IEEE80211_SKB_CB(skb);
status.skb = skb;
/* sta, n_rates, rates, free_list? */
ieee80211_tx_status_ext(hw, &status);
}
/*
* This is an internal bandaid for the moment for the way we glue
* skbs and mbufs together for TX. Once we have skbs backed by
* mbufs this should go away.
* This is a public function but kept on the private KPI (lkpi_)
* and is not exposed by a header file.
*/
static void
lkpi_ieee80211_free_skb_mbuf(void *p)
{
struct ieee80211_node *ni;
struct mbuf *m;
if (p == NULL)
return;
m = (struct mbuf *)p;
M_ASSERTPKTHDR(m);
ni = m->m_pkthdr.PH_loc.ptr;
m->m_pkthdr.PH_loc.ptr = NULL;
if (ni != NULL)
ieee80211_free_node(ni);
m_freem(m);
}
void
linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw,
struct delayed_work *w, int delay)
{
struct lkpi_hw *lhw;
/* Need to make sure hw is in a stable (non-suspended) state. */
IMPROVE();
lhw = HW_TO_LHW(hw);
queue_delayed_work(lhw->workq, w, delay);
}
void
linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw,
struct work_struct *w)
{
struct lkpi_hw *lhw;
/* Need to make sure hw is in a stable (non-suspended) state. */
IMPROVE();
lhw = HW_TO_LHW(hw);
queue_work(lhw->workq, w);
}
struct sk_buff *
linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr,
uint8_t *ssid, size_t ssid_len, size_t tailroom)
{
struct sk_buff *skb;
struct ieee80211_frame *wh;
uint8_t *p;
size_t len;
len = sizeof(*wh);
len += 2 + ssid_len;
skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom);
if (skb == NULL)
return (NULL);
skb_reserve(skb, hw->extra_tx_headroom);
wh = skb_put_zero(skb, sizeof(*wh));
wh->i_fc[0] = IEEE80211_FC0_VERSION_0;
wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT;
IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr);
IEEE80211_ADDR_COPY(wh->i_addr2, addr);
IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr);
p = skb_put(skb, 2 + ssid_len);
*p++ = IEEE80211_ELEMID_SSID;
*p++ = ssid_len;
if (ssid_len > 0)
memcpy(p, ssid, ssid_len);
return (skb);
}
struct sk_buff *
linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct lkpi_vif *lvif;
struct ieee80211vap *vap;
struct sk_buff *skb;
struct ieee80211_frame_pspoll *psp;
uint16_t v;
skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp));
if (skb == NULL)
return (NULL);
skb_reserve(skb, hw->extra_tx_headroom);
lvif = VIF_TO_LVIF(vif);
vap = LVIF_TO_VAP(lvif);
psp = skb_put_zero(skb, sizeof(*psp));
psp->i_fc[0] = IEEE80211_FC0_VERSION_0;
psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL;
v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16);
memcpy(&psp->i_aid, &v, sizeof(v));
IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr);
IEEE80211_ADDR_COPY(psp->i_ta, vif->addr);
return (skb);
}
struct sk_buff *
linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, bool qos)
{
struct lkpi_vif *lvif;
struct ieee80211vap *vap;
struct sk_buff *skb;
struct ieee80211_frame *nullf;
skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf));
if (skb == NULL)
return (NULL);
skb_reserve(skb, hw->extra_tx_headroom);
lvif = VIF_TO_LVIF(vif);
vap = LVIF_TO_VAP(lvif);
nullf = skb_put_zero(skb, sizeof(*nullf));
nullf->i_fc[0] = IEEE80211_FC0_VERSION_0;
nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA;
nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS;
IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid);
IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr);
IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr);
return (skb);
}
struct wireless_dev *
linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif)
{
struct lkpi_vif *lvif;
lvif = VIF_TO_LVIF(vif);
return (&lvif->wdev);
}
void
linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif)
{
struct lkpi_vif *lvif;
struct ieee80211vap *vap;
enum ieee80211_state nstate;
int arg;
lvif = VIF_TO_LVIF(vif);
vap = LVIF_TO_VAP(lvif);
/*
* Go to init; otherwise we need to elaborately check state and
* handle accordingly, e.g., if in RUN we could call iv_bmiss.
* Let the statemachine handle all neccessary changes.
*/
nstate = IEEE80211_S_INIT;
arg = 0; /* Not a valid reason. */
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE)
ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif);
#endif
ieee80211_new_state(vap, nstate, arg);
}
void
linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif)
{
struct lkpi_vif *lvif;
struct ieee80211vap *vap;
lvif = VIF_TO_LVIF(vif);
vap = LVIF_TO_VAP(lvif);
#ifdef LINUXKPI_DEBUG_80211
if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN)
ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__,
vif, vap, ieee80211_state_name[vap->iv_state]);
#endif
ieee80211_beacon_miss(vap->iv_ic);
}
/* -------------------------------------------------------------------------- */
void
linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum)
{
struct lkpi_hw *lhw;
struct lkpi_vif *lvif;
struct ieee80211_vif *vif;
int ac_count, ac;
KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n",
__func__, qnum, hw->queues, hw));
lhw = wiphy_priv(hw->wiphy);
/* See lkpi_ic_vap_create(). */
if (hw->queues >= IEEE80211_NUM_ACS)
ac_count = IEEE80211_NUM_ACS;
else
ac_count = 1;
LKPI_80211_LHW_LVIF_LOCK(lhw);
TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) {
vif = LVIF_TO_VIF(lvif);
for (ac = 0; ac < ac_count; ac++) {
IMPROVE_TXQ("LOCKING");
if (qnum == vif->hw_queue[ac]) {
/*
* For now log this to better understand
* how this is supposed to work.
*/
if (lvif->hw_queue_stopped[ac])
ic_printf(lhw->ic, "%s:%d: lhw %p hw %p "
"lvif %p vif %p ac %d qnum %d already "
"stopped\n", __func__, __LINE__,
lhw, hw, lvif, vif, ac, qnum);
lvif->hw_queue_stopped[ac] = true;
}
}
}
LKPI_80211_LHW_LVIF_UNLOCK(lhw);
}
void
linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw)
{
int i;
IMPROVE_TXQ("Locking; do we need further info?");
for (i = 0; i < hw->queues; i++)
linuxkpi_ieee80211_stop_queue(hw, i);
}
static void
lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq)
{
struct lkpi_hw *lhw;
struct lkpi_vif *lvif;
struct lkpi_sta *lsta;
int ac_count, ac, tid;
/* See lkpi_ic_vap_create(). */
if (hw->queues >= IEEE80211_NUM_ACS)
ac_count = IEEE80211_NUM_ACS;
else
ac_count = 1;
lhw = wiphy_priv(hw->wiphy);
IMPROVE_TXQ("Locking");
LKPI_80211_LHW_LVIF_LOCK(lhw);
TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) {
struct ieee80211_vif *vif;
vif = LVIF_TO_VIF(lvif);
for (ac = 0; ac < ac_count; ac++) {
if (hwq == vif->hw_queue[ac]) {
/* XXX-BZ what about software scan? */
/*
* For now log this to better understand
* how this is supposed to work.
*/
if (!lvif->hw_queue_stopped[ac])
ic_printf(lhw->ic, "%s:%d: lhw %p hw %p "
"lvif %p vif %p ac %d hw_q not stopped\n",
__func__, __LINE__,
lhw, hw, lvif, vif, ac);
lvif->hw_queue_stopped[ac] = false;
LKPI_80211_LVIF_LOCK(lvif);
TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) {
struct ieee80211_sta *sta;
sta = LSTA_TO_STA(lsta);
for (tid = 0; tid < nitems(sta->txq); tid++) {
struct lkpi_txq *ltxq;
if (sta->txq[tid] == NULL)
continue;
if (sta->txq[tid]->ac != ac)
continue;
ltxq = TXQ_TO_LTXQ(sta->txq[tid]);
if (!ltxq->stopped)
continue;
ltxq->stopped = false;
/* XXX-BZ see when this explodes with all the locking. taskq? */
lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]);
}
}
LKPI_80211_LVIF_UNLOCK(lvif);
}
}
}
LKPI_80211_LHW_LVIF_UNLOCK(lhw);
}
void
linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw)
{
int i;
IMPROVE_TXQ("Is this all/enough here?");
for (i = 0; i < hw->queues; i++)
lkpi_ieee80211_wake_queues(hw, i);
}
void
linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum)
{
KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n",
__func__, qnum, hw->queues, hw));
lkpi_ieee80211_wake_queues(hw, qnum);
}
/* This is just hardware queues. */
void
linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac)
{
struct lkpi_hw *lhw;
lhw = HW_TO_LHW(hw);
IMPROVE_TXQ("Are there reasons why we wouldn't schedule?");
IMPROVE_TXQ("LOCKING");
if (++lhw->txq_generation[ac] == 0)
lhw->txq_generation[ac]++;
}
struct ieee80211_txq *
linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac)
{
struct lkpi_hw *lhw;
struct ieee80211_txq *txq;
struct lkpi_txq *ltxq;
lhw = HW_TO_LHW(hw);
txq = NULL;
IMPROVE_TXQ("LOCKING");
/* Check that we are scheduled. */
if (lhw->txq_generation[ac] == 0)
goto out;
ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]);
if (ltxq == NULL)
goto out;
if (ltxq->txq_generation == lhw->txq_generation[ac])
goto out;
ltxq->txq_generation = lhw->txq_generation[ac];
TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry);
txq = &ltxq->txq;
TAILQ_ELEM_INIT(ltxq, txq_entry);
out:
return (txq);
}
void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw,
struct ieee80211_txq *txq, bool withoutpkts)
{
struct lkpi_hw *lhw;
struct lkpi_txq *ltxq;
ltxq = TXQ_TO_LTXQ(txq);
IMPROVE_TXQ("LOCKING");
/* Only schedule if work to do or asked to anyway. */
if (!withoutpkts && skb_queue_empty(&ltxq->skbq))
goto out;
/* Make sure we do not double-schedule. */
if (ltxq->txq_entry.tqe_next != NULL)
goto out;
lhw = HW_TO_LHW(hw);
TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry);
out:
return;
}
/* -------------------------------------------------------------------------- */
struct lkpi_cfg80211_bss {
u_int refcnt;
struct cfg80211_bss bss;
};
struct lkpi_cfg80211_get_bss_iter_lookup {
struct wiphy *wiphy;
struct linuxkpi_ieee80211_channel *chan;
const uint8_t *bssid;
const uint8_t *ssid;
size_t ssid_len;
enum ieee80211_bss_type bss_type;
enum ieee80211_privacy privacy;
/*
* Something to store a copy of the result as the net80211 scan cache
* is not refoucnted so a scan entry might go away any time.
*/
bool match;
struct cfg80211_bss *bss;
};
static void
lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se)
{
struct lkpi_cfg80211_get_bss_iter_lookup *lookup;
size_t ielen;
lookup = arg;
/* Do not try to find another match. */
if (lookup->match)
return;
/* Nothing to store result. */
if (lookup->bss == NULL)
return;
if (lookup->privacy != IEEE80211_PRIVACY_ANY) {
/* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */
/* We have no idea what to compare to as the drivers only request ANY */
return;
}
if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) {
/* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */
/* We have no idea what to compare to as the drivers only request ANY */
return;
}
if (lookup->chan != NULL) {
struct linuxkpi_ieee80211_channel *chan;
chan = linuxkpi_ieee80211_get_channel(lookup->wiphy,
se->se_chan->ic_freq);
if (chan == NULL || chan != lookup->chan)
return;
}
if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid))
return;
if (lookup->ssid) {
if (lookup->ssid_len != se->se_ssid[1] ||
se->se_ssid[1] == 0)
return;
if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0)
return;
}
ielen = se->se_ies.len;
lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen,
M_LKPI80211, M_NOWAIT | M_ZERO);
if (lookup->bss->ies == NULL)
return;
lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies);
lookup->bss->ies->len = ielen;
if (ielen)
memcpy(lookup->bss->ies->data, se->se_ies.data, ielen);
lookup->match = true;
}
struct cfg80211_bss *
linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan,
const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len,
enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy)
{
struct lkpi_cfg80211_bss *lbss;
struct lkpi_cfg80211_get_bss_iter_lookup lookup;
struct lkpi_hw *lhw;
struct ieee80211vap *vap;
lhw = wiphy_priv(wiphy);
/* Let's hope we can alloc. */
lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO);
if (lbss == NULL) {
ic_printf(lhw->ic, "%s: alloc failed.\n", __func__);
return (NULL);
}
lookup.wiphy = wiphy;
lookup.chan = chan;
lookup.bssid = bssid;
lookup.ssid = ssid;
lookup.ssid_len = ssid_len;
lookup.bss_type = bss_type;
lookup.privacy = privacy;
lookup.match = false;
lookup.bss = &lbss->bss;
IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?");
vap = TAILQ_FIRST(&lhw->ic->ic_vaps);
ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup);
if (!lookup.match) {
free(lbss, M_LKPI80211);
return (NULL);
}
refcount_init(&lbss->refcnt, 1);
return (&lbss->bss);
}
void
linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss)
{
struct lkpi_cfg80211_bss *lbss;
lbss = container_of(bss, struct lkpi_cfg80211_bss, bss);
/* Free everything again on refcount ... */
if (refcount_release(&lbss->refcnt)) {
free(lbss->bss.ies, M_LKPI80211);
free(lbss, M_LKPI80211);
}
}
void
linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy)
{
struct lkpi_hw *lhw;
struct ieee80211com *ic;
struct ieee80211vap *vap;
lhw = wiphy_priv(wiphy);
ic = lhw->ic;
/*
* If we haven't called ieee80211_ifattach() yet
* or there is no VAP, there are no scans to flush.
*/
if (ic == NULL ||
(lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0)
return;
/* Should only happen on the current one? Not seen it late enough. */
IEEE80211_LOCK(ic);
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
ieee80211_scan_flush(vap);
IEEE80211_UNLOCK(ic);
}
/* -------------------------------------------------------------------------- */
MODULE_VERSION(linuxkpi_wlan, 1);
MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1);
MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1);
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