5463c4a485
o replace DLT_IEEE802_11 support in net80211 with DLT_IEEE802_11_RADIO and remove explicit bpf support from wireless drivers; drivers now use ieee80211_radiotap_attach to setup shared data structures that hold the radiotap header for each packet tx/rx o remove rx timestamp from the rx path; it was used only by the tdma support for debugging and was mostly useless due to it being 32-bits and mostly unavailable o track DLT_IEEE80211_RADIO bpf attachments and maintain per-vap and per-com state when there are active taps o track the number of monitor mode vaps o use bpf tap and monitor mode vap state to decide when to collect radiotap state and dispatch frames; drivers no longer explicitly directly check bpf state or use bpf calls to tap frames o handle radiotap state updates on channel change in net80211; drivers should not do this (unless they bypass net80211 which is almost always a mistake) o update various drivers to be more consistent/correct in handling radiotap o update ral to include TSF in radiotap'd frames o add promisc mode callback to wi Reviewed by: cbzimmer, rpaulo, thompsa
142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
/* $FreeBSD$ */
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/*-
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* Copyright (c) 2005
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* Damien Bergamini <damien.bergamini@free.fr>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#define RAL_TX_LIST_COUNT 8
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#define RAL_TX_MINFREE 2
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#define URAL_SCAN_START 1
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#define URAL_SCAN_END 2
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#define URAL_SET_CHANNEL 3
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struct ural_rx_radiotap_header {
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struct ieee80211_radiotap_header wr_ihdr;
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uint8_t wr_flags;
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uint8_t wr_rate;
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uint16_t wr_chan_freq;
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uint16_t wr_chan_flags;
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int8_t wr_antsignal;
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int8_t wr_antnoise;
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uint8_t wr_antenna;
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};
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#define RAL_RX_RADIOTAP_PRESENT \
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((1 << IEEE80211_RADIOTAP_FLAGS) | \
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(1 << IEEE80211_RADIOTAP_RATE) | \
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(1 << IEEE80211_RADIOTAP_CHANNEL) | \
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(1 << IEEE80211_RADIOTAP_ANTENNA) | \
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(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | \
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(1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))
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struct ural_tx_radiotap_header {
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struct ieee80211_radiotap_header wt_ihdr;
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uint8_t wt_flags;
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uint8_t wt_rate;
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uint16_t wt_chan_freq;
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uint16_t wt_chan_flags;
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uint8_t wt_antenna;
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};
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#define RAL_TX_RADIOTAP_PRESENT \
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((1 << IEEE80211_RADIOTAP_FLAGS) | \
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(1 << IEEE80211_RADIOTAP_RATE) | \
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(1 << IEEE80211_RADIOTAP_CHANNEL) | \
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(1 << IEEE80211_RADIOTAP_ANTENNA))
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struct ural_softc;
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struct ural_tx_data {
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STAILQ_ENTRY(ural_tx_data) next;
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struct ural_softc *sc;
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struct ural_tx_desc desc;
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struct mbuf *m;
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struct ieee80211_node *ni;
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int rate;
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};
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typedef STAILQ_HEAD(, ural_tx_data) ural_txdhead;
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struct ural_node {
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struct ieee80211_node ni;
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struct ieee80211_amrr_node amn;
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};
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#define URAL_NODE(ni) ((struct ural_node *)(ni))
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struct ural_vap {
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struct ieee80211vap vap;
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struct ieee80211_beacon_offsets bo;
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struct ieee80211_amrr amrr;
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struct usb2_callout amrr_ch;
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struct task amrr_task;
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int (*newstate)(struct ieee80211vap *,
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enum ieee80211_state, int);
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};
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#define URAL_VAP(vap) ((struct ural_vap *)(vap))
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enum {
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URAL_BULK_WR,
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URAL_BULK_RD,
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URAL_N_TRANSFER = 2,
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};
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struct ural_softc {
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struct ifnet *sc_ifp;
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device_t sc_dev;
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struct usb2_device *sc_udev;
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uint32_t asic_rev;
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uint8_t rf_rev;
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struct usb2_xfer *sc_xfer[URAL_N_TRANSFER];
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struct ural_tx_data tx_data[RAL_TX_LIST_COUNT];
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ural_txdhead tx_q;
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ural_txdhead tx_free;
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int tx_nfree;
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struct ural_rx_desc sc_rx_desc;
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struct mtx sc_mtx;
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uint16_t sta[11];
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uint32_t rf_regs[4];
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uint8_t txpow[14];
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uint8_t sc_bssid[6];
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struct {
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uint8_t val;
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uint8_t reg;
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} __packed bbp_prom[16];
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int led_mode;
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int hw_radio;
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int rx_ant;
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int tx_ant;
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int nb_ant;
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struct ural_rx_radiotap_header sc_rxtap;
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int sc_rxtap_len;
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struct ural_tx_radiotap_header sc_txtap;
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int sc_txtap_len;
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};
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#define RAL_LOCK(sc) mtx_lock(&(sc)->sc_mtx)
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#define RAL_UNLOCK(sc) mtx_unlock(&(sc)->sc_mtx)
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#define RAL_LOCK_ASSERT(sc, t) mtx_assert(&(sc)->sc_mtx, t)
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