Date: Tue, 12 Oct 2010 16:52:13 +0000 (UTC) From: Bernhard Schmidt <bschmidt@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r213729 - head/sys/dev/iwi Message-ID: <201010121652.o9CGqDWd054006@svn.freebsd.org>
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Author: bschmidt Date: Tue Oct 12 16:52:13 2010 New Revision: 213729 URL: http://svn.freebsd.org/changeset/base/213729 Log: Fix monitor mode which is implemented by doing a firmware scan. This 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 Modified: head/sys/dev/iwi/if_iwi.c head/sys/dev/iwi/if_iwivar.h Modified: head/sys/dev/iwi/if_iwi.c ============================================================================== --- head/sys/dev/iwi/if_iwi.c Tue Oct 12 16:23:50 2010 (r213728) +++ head/sys/dev/iwi/if_iwi.c Tue Oct 12 16:52:13 2010 (r213729) @@ -180,6 +180,7 @@ static void iwi_release_fw_dma(struct iw 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, e * 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 * 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 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. */ Modified: head/sys/dev/iwi/if_iwivar.h ============================================================================== --- head/sys/dev/iwi/if_iwivar.h Tue Oct 12 16:23:50 2010 (r213728) +++ head/sys/dev/iwi/if_iwivar.h Tue Oct 12 16:52:13 2010 (r213729) @@ -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 */
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