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- /*-
- * Copyright (c) 2001 Atsushi Onoe
- * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * $Id: ieee80211_proto.h 1441 2006-02-06 16:03:21Z mrenzmann $
- */
- #ifndef _NET80211_IEEE80211_PROTO_H_
- #define _NET80211_IEEE80211_PROTO_H_
-
- /*
- * 802.11 protocol implementation definitions.
- */
-
- enum ieee80211_state {
- IEEE80211_S_INIT = 0, /* default state */
- IEEE80211_S_SCAN = 1, /* scanning */
- IEEE80211_S_AUTH = 2, /* try to authenticate */
- IEEE80211_S_ASSOC = 3, /* try to assoc */
- IEEE80211_S_RUN = 4, /* associated */
- };
- #define IEEE80211_S_MAX (IEEE80211_S_RUN + 1)
-
- #define IEEE80211_SEND_MGMT(_ni,_type,_arg) \
- ((*(_ni)->ni_ic->ic_send_mgmt)(_ni, _type, _arg))
-
- extern const char *ieee80211_mgt_subtype_name[];
- extern const char *ieee80211_ctl_subtype_name[];
- extern const char *ieee80211_state_name[IEEE80211_S_MAX];
- extern const char *ieee80211_wme_acnames[];
- extern const char *ieee80211_phymode_name[];
-
- void ieee80211_proto_attach(struct ieee80211com *);
- void ieee80211_proto_detach(struct ieee80211com *);
- void ieee80211_proto_vattach(struct ieee80211vap *);
- void ieee80211_proto_vdetach(struct ieee80211vap *);
-
- struct ieee80211_node;
- int ieee80211_input(struct ieee80211_node *, struct sk_buff *, int, u_int32_t);
- int ieee80211_input_all(struct ieee80211com *, struct sk_buff *, int, u_int32_t);
- int ieee80211_setup_rates(struct ieee80211_node *, const u_int8_t *,
- const u_int8_t *, int);
- void ieee80211_saveie(u_int8_t **, const u_int8_t *);
- void ieee80211_saveath(struct ieee80211_node *, u_int8_t *);
- void ieee80211_recv_mgmt(struct ieee80211_node *, struct sk_buff *,
- int, int, u_int32_t);
- void ieee80211_sta_pwrsave(struct ieee80211vap *, int);
- int ieee80211_hardstart(struct sk_buff *, struct net_device *);
- int ieee80211_send_nulldata(struct ieee80211_node *);
- int ieee80211_send_qosnulldata(struct ieee80211_node *, int);
- int ieee80211_send_mgmt(struct ieee80211_node *, int, int);
- int ieee80211_send_probereq(struct ieee80211_node *,
- const u_int8_t sa[IEEE80211_ADDR_LEN],
- const u_int8_t da[IEEE80211_ADDR_LEN],
- const u_int8_t bssid[IEEE80211_ADDR_LEN],
- const u_int8_t *, size_t, const void *, size_t);
- struct sk_buff *ieee80211_encap(struct ieee80211_node *, struct sk_buff *, int *);
- void ieee80211_pwrsave(struct ieee80211_node *, struct sk_buff *);
-
- void ieee80211_reset_erp(struct ieee80211com *, enum ieee80211_phymode);
- void ieee80211_set_shortslottime(struct ieee80211com *, int);
- int ieee80211_iserp_rateset(struct ieee80211com *, struct ieee80211_rateset *);
- void ieee80211_set11gbasicrates(struct ieee80211_rateset *, enum ieee80211_phymode);
- enum ieee80211_phymode ieee80211_get11gbasicrates(struct ieee80211_rateset *);
- void ieee80211_send_pspoll(struct ieee80211_node *);
-
- /*
- * Return the size of the 802.11 header for a management or data frame.
- */
- static __inline int
- ieee80211_hdrsize(const void *data)
- {
- const struct ieee80211_frame *wh = data;
- int size = sizeof(struct ieee80211_frame);
-
- /* NB: we don't handle control frames */
- KASSERT((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_CTL,
- ("%s: control frame", __func__));
- if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS)
- size += IEEE80211_ADDR_LEN;
- if (IEEE80211_QOS_HAS_SEQ(wh))
- size += sizeof(u_int16_t);
- return size;
- }
-
- /*
- * Like ieee80211_hdrsize, but handles any type of frame.
- */
- static __inline int
- ieee80211_anyhdrsize(const void *data)
- {
- const struct ieee80211_frame *wh = data;
-
- if ((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) {
- switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
- case IEEE80211_FC0_SUBTYPE_CTS:
- case IEEE80211_FC0_SUBTYPE_ACK:
- return sizeof(struct ieee80211_frame_ack);
- }
- return sizeof(struct ieee80211_frame_min);
- } else
- return ieee80211_hdrsize(data);
- }
-
- /*
- * Template for an in-kernel authenticator. Authenticators
- * register with the protocol code and are typically loaded
- * as separate modules as needed.
- */
- struct ieee80211_authenticator {
- const char *ia_name; /* printable name */
- int (*ia_attach)(struct ieee80211vap *);
- void (*ia_detach)(struct ieee80211vap *);
- void (*ia_node_join)(struct ieee80211_node *);
- void (*ia_node_leave)(struct ieee80211_node *);
- };
- void ieee80211_authenticator_register(int, const struct ieee80211_authenticator *);
- void ieee80211_authenticator_unregister(int);
- const struct ieee80211_authenticator *ieee80211_authenticator_get(int);
-
- struct eapolcom;
- /*
- * Template for an in-kernel authenticator backend. Backends
- * register with the protocol code and are typically loaded
- * as separate modules as needed.
- */
- struct ieee80211_authenticator_backend {
- const char *iab_name; /* printable name */
- int (*iab_attach)(struct eapolcom *);
- void (*iab_detach)(struct eapolcom *);
- };
- void ieee80211_authenticator_backend_register(
- const struct ieee80211_authenticator_backend *);
- void ieee80211_authenticator_backend_unregister(
- const struct ieee80211_authenticator_backend *);
- const struct ieee80211_authenticator_backend *
- ieee80211_authenticator_backend_get(const char *);
-
- /*
- * Template for an MAC ACL policy module. Such modules
- * register with the protocol code and are passed the sender's
- * address of each received frame for validation.
- */
- struct ieee80211_aclator {
- const char *iac_name; /* printable name */
- int (*iac_attach)(struct ieee80211vap *);
- void (*iac_detach)(struct ieee80211vap *);
- int (*iac_check)(struct ieee80211vap *,
- const u_int8_t mac[IEEE80211_ADDR_LEN]);
- int (*iac_add)(struct ieee80211vap *,
- const u_int8_t mac[IEEE80211_ADDR_LEN]);
- int (*iac_remove)(struct ieee80211vap *,
- const u_int8_t mac[IEEE80211_ADDR_LEN]);
- int (*iac_flush)(struct ieee80211vap *);
- int (*iac_setpolicy)(struct ieee80211vap *, int);
- int (*iac_getpolicy)(struct ieee80211vap *);
- };
- void ieee80211_aclator_register(const struct ieee80211_aclator *);
- void ieee80211_aclator_unregister(const struct ieee80211_aclator *);
- const struct ieee80211_aclator *ieee80211_aclator_get(const char *name);
-
- /* flags for ieee80211_fix_rate() */
- #define IEEE80211_F_DOSORT 0x00000001 /* sort rate list */
- #define IEEE80211_F_DOFRATE 0x00000002 /* use fixed rate */
- #define IEEE80211_F_DONEGO 0x00000004 /* calc negotiated rate */
- #define IEEE80211_F_DODEL 0x00000008 /* delete ignore rate */
- int ieee80211_fix_rate(struct ieee80211_node *, int);
-
- struct wmeParams {
- u_int8_t wmep_acm; /* ACM parameter */
- u_int8_t wmep_aifsn; /* AIFSN parameters */
- u_int8_t wmep_logcwmin; /* cwmin in exponential form */
- u_int8_t wmep_logcwmax; /* cwmax in exponential form */
- u_int16_t wmep_txopLimit; /* txopLimit */
- u_int8_t wmep_noackPolicy; /* No-Ack Policy: 0=ack, 1=no-ack */
- };
-
- #define IEEE80211_EXPONENT_TO_VALUE(_exp) (1 << (u_int32_t)(_exp)) - 1
- #define IEEE80211_TXOP_TO_US(_txop) (u_int32_t)(_txop) << 5
- #define IEEE80211_US_TO_TXOP(_us) (u_int16_t)((u_int32_t)(_us)) >> 5
-
- struct chanAccParams{
- /* XXX: is there any reason to have multiple instances of cap_info_count??? */
- u_int8_t cap_info_count; /* ver. of the current param set */
- struct wmeParams cap_wmeParams[WME_NUM_AC]; /*WME params for each access class */
- };
-
- struct ieee80211_wme_state {
- u_int32_t wme_flags;
- #define WME_F_AGGRMODE 0x00000001 /* STATUS: WME agressive mode */
-
- u_int wme_hipri_traffic; /* VI/VO frames in beacon interval */
- u_int wme_hipri_switch_thresh; /* agressive mode switch thresh */
- u_int wme_hipri_switch_hysteresis; /* agressive mode switch hysteresis */
-
- struct chanAccParams wme_wmeChanParams; /* configured WME parameters applied to itself*/
- struct chanAccParams wme_wmeBssChanParams; /* configured WME parameters broadcasted to STAs*/
- struct chanAccParams wme_chanParams; /* channel parameters applied to itself*/
- struct chanAccParams wme_bssChanParams; /* channel parameters broadcasted to STAs*/
- u_int8_t wme_nonAggressiveMode; /* don't use aggressive params and use WME params */
-
- /* update hardware tx params after wme state change */
- int (*wme_update)(struct ieee80211com *);
- };
-
- void ieee80211_wme_initparams(struct ieee80211vap *);
- void ieee80211_wme_initparams_locked(struct ieee80211vap *);
- void ieee80211_wme_updateparams(struct ieee80211vap *);
- void ieee80211_wme_updateparams_locked(struct ieee80211vap *);
-
- int ieee80211_open(struct net_device *);
- int ieee80211_init(struct net_device *, int);
- void ieee80211_start_running(struct ieee80211com *);
- int ieee80211_stop(struct net_device *);
- void ieee80211_stop_running(struct ieee80211com *);
- void ieee80211_beacon_miss(struct ieee80211com *);
- #ifdef ATH_SUPERG_DYNTURBO
- void ieee80211_dturbo_switch(struct ieee80211com *, int);
- #endif
- int ieee80211_new_state(struct ieee80211vap *, enum ieee80211_state, int);
- void ieee80211_print_essid(const u_int8_t *, int);
- void ieee80211_dump_pkt(struct ieee80211com *, const u_int8_t *, int, int, int);
- struct sk_buff *ieee80211_getcfframe(struct ieee80211vap *, int);
-
- /*
- * Beacon frames constructed by ieee80211_beacon_alloc
- * have the following structure filled in so drivers
- * can update the frame later w/ minimal overhead.
- */
- struct ieee80211_beacon_offsets {
- u_int16_t *bo_caps; /* capabilities */
- u_int8_t *bo_tim; /* start of atim/dtim */
- u_int8_t *bo_wme; /* start of WME parameters */
- u_int8_t *bo_tim_trailer; /* start of fixed-size tim trailer */
- u_int16_t bo_tim_len; /* atim/dtim length in bytes */
- u_int16_t bo_tim_trailerlen; /* trailer length in bytes */
- u_int8_t *bo_chanswitch; /* where channel switch IE will go */
- u_int8_t *bo_ath_caps; /* where ath caps is */
- u_int8_t *bo_xr; /* start of xr element */
- u_int8_t *bo_erp; /* start of ERP element */
- u_int16_t bo_chanswitch_trailerlen;
- };
- struct sk_buff *ieee80211_beacon_alloc(struct ieee80211_node *,
- struct ieee80211_beacon_offsets *);
- int ieee80211_beacon_update(struct ieee80211_node *,
- struct ieee80211_beacon_offsets *, struct sk_buff *, int);
-
- /* XXX exposed due to of beacon code botch */
- int8_t *ieee80211_add_rates(u_int8_t *, const struct ieee80211_rateset *);
- u_int8_t *ieee80211_add_xrates(u_int8_t *, const struct ieee80211_rateset *);
- u_int8_t *ieee80211_add_wpa(u_int8_t *, struct ieee80211vap *);
- u_int8_t *ieee80211_add_erp(u_int8_t *, struct ieee80211com *);
- u_int8_t *ieee80211_add_athAdvCap(u_int8_t *, u_int8_t, u_int16_t);
- u_int8_t *ieee80211_add_xr_param(u_int8_t *, struct ieee80211vap *);
- u_int8_t *ieee80211_add_xr_param(u_int8_t *, struct ieee80211vap *);
- u_int8_t *ieee80211_add_wme_param(u_int8_t *, struct ieee80211_wme_state *, int);
- u_int8_t *ieee80211_add_country(u_int8_t *, struct ieee80211com *);
- u_int8_t *ieee80211_add_country(u_int8_t *, struct ieee80211com *);
- u_int8_t *ieee80211_add_athAdvCap(u_int8_t *, u_int8_t, u_int16_t);
-
- /*
- * Notification methods called from the 802.11 state machine.
- * Note that while these are defined here, their implementation
- * is OS-specific.
- */
- void ieee80211_notify_node_join(struct ieee80211_node *, int);
- void ieee80211_notify_node_leave(struct ieee80211_node *);
- void ieee80211_notify_scan_done(struct ieee80211vap *);
- #endif /* _NET80211_IEEE80211_PROTO_H_ */
-