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Fix monitor mode which is implemented by doing a firmware scan. This

Browse source 
is a port of stable/6, seems like the code got lost during the
background scan changes in r170530.

Pointed out by:	danfe
MFC after:	2 weeks
This commit is contained in:
Bernhard Schmidt 2010-10-12 16:52:13 +00:00
parent 27877c9903
commit 40668dc52b
2 changed files with 34 additions and 1 deletions
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34
sys/dev/iwi/if_iwi.c
View file

@ -180,6 +180,7 @@ static void iwi_release_fw_dma(struct iwi_softc *sc);
static int iwi_config(struct iwi_softc *);
static int iwi_get_firmware(struct iwi_softc *, enum ieee80211_opmode);
static void iwi_put_firmware(struct iwi_softc *);
static void iwi_monitor_scan(void *, int);
static int iwi_scanchan(struct iwi_softc *, unsigned long, int);
static void iwi_scan_start(struct ieee80211com *);
static void iwi_scan_end(struct ieee80211com *);
@ -292,6 +293,7 @@ iwi_attach(device_t dev)
TASK_INIT(&sc->sc_restarttask, 0, iwi_restart, sc);
TASK_INIT(&sc->sc_disassoctask, 0, iwi_disassoc, sc);
TASK_INIT(&sc->sc_wmetask, 0, iwi_update_wme, sc);
TASK_INIT(&sc->sc_monitortask, 0, iwi_monitor_scan, sc);
callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0);
callout_init_mtx(&sc->sc_rftimer, &sc->sc_mtx, 0);
@ -460,6 +462,7 @@ iwi_detach(device_t dev)
ieee80211_draintask(ic, &sc->sc_radiofftask);
ieee80211_draintask(ic, &sc->sc_restarttask);
ieee80211_draintask(ic, &sc->sc_disassoctask);
ieee80211_draintask(ic, &sc->sc_monitortask);
iwi_stop(sc);
@ -988,7 +991,8 @@ iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
* This is all totally bogus and needs to be redone.
*/
iwi_auth_and_assoc(sc, vap);
}
} else if (vap->iv_opmode == IEEE80211_M_MONITOR)
ieee80211_runtask(ic, &sc->sc_monitortask);
break;
case IEEE80211_S_ASSOC:
/*
@ -1407,6 +1411,18 @@ iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif)
IWI_STATE_END(sc, IWI_FW_SCANNING);
/*
* Monitor mode works by doing a passive scan to set
* the channel and enable rx. Because we don't want
* to abort a scan lest the firmware crash we scan
* for a short period of time and automatically restart
* the scan when notified the sweep has completed.
*/
if (vap->iv_opmode == IEEE80211_M_MONITOR) {
ieee80211_runtask(ic, &sc->sc_monitortask);
break;
}
if (scan->status == IWI_SCAN_COMPLETED) {
/* NB: don't need to defer, net80211 does it for us */
ieee80211_scan_next(vap);
@ -2557,6 +2573,11 @@ iwi_config(struct iwi_softc *sc)
config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0;
config.disable_unicast_decryption = 1;
config.disable_multicast_decryption = 1;
if (ic->ic_opmode == IEEE80211_M_MONITOR) {
config.allow_invalid_frames = 1;
config.allow_beacon_and_probe_resp = 1;
config.allow_mgt = 1;
}
DPRINTF(("Configuring adapter\n"));
error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config);
if (error != 0)
@ -2642,6 +2663,17 @@ scan_band(const struct ieee80211_channel *c)
return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ;
}
static void
iwi_monitor_scan(void *arg, int npending)
{
struct iwi_softc *sc = arg;
IWI_LOCK_DECL;
IWI_LOCK(sc);
(void) iwi_scanchan(sc, 2000, 0);
IWI_UNLOCK(sc);
}
/*
* Start a scan on the current channel or all channels.
*/

1
sys/dev/iwi/if_iwivar.h
View file

@ -193,6 +193,7 @@ struct iwi_softc {
struct task sc_restarttask; /* restart adapter processing */
struct task sc_disassoctask;
struct task sc_wmetask; /* set wme parameters */
struct task sc_monitortask;
unsigned int sc_softled : 1, /* enable LED gpio status */
sc_ledstate: 1, /* LED on/off state */